• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    POT SENSOR BASED ON CROSS HEATING THERMOCOUPLE. A hob (48) includes a first burner (14) and a second burner (16). A first temperature sensor (28) is adjacent to the first burner (14), and a second temperature sensor (30) is adjacent to the second burner (16). A hob controller is operatively connected to the first temperature sensor (28) to receive a first temperature signal from the first temperature sensor (28), and operatively connected to the second temperature sensor (30) to receive a second temperature signal. temperature of the second temperature sensor (30). The hob controller is configured to determine, from the second temperature signal, the absence of a cooking vessel (22) on the first burner (14), and to automatically adjust a heat output from the first burner downwards ( 14) based on the absence of a cooking vessel (22) on the first burner (14).
    公开号:BR112015024751B1
    申请号:R112015024751-2
    申请日:2014-03-19
    公开日:2021-01-26
    发明作者:Gerald Wayne Mcafee；Aric Hanz Storck
    申请人:Electrolux Home Products, Inc.；
    IPC主号:
    专利说明:

    CROSS REFERENCE TO RELATED REQUESTS
    [0001] The benefit of United States Provisional Patent Application Serial Number 61 / 805,640, filed on March 27, 2013, is claimed through this document and the description is incorporated herein by reference. BACKGROUND Description Field
    [0002] The present description relates to a method and apparatus for detecting the presence of a cooking vessel on a cooktop and, in particular, for detecting the presence of a cooking vessel on an active burner on the cooking plate. of stove. Related Technique Description
    [0003] The technique for detecting the presence of a cooking vessel in a burner on a hob is known. This can be done by a switch that is operated by the weight of the cooking vessel on the burner. However, installing these switches on a hob increases the cost and complexity of the appliance. It would be desirable to determine the presence or absence of a cooking vessel on a burner using equipment already on the hob. BRIEF SUMMARY
    [0004] The summary below provides a simplified summary in order to provide a basic understanding of some aspects of the devices and methods discussed here. This summary is not a broad overview of the devices and methods discussed here. It is not intended to identify critical elements or outline the scope of such devices and methods. Its sole purpose is to present some concepts in a simplified way as an introduction to the more detailed description that will be presented below.
    [0005] According to one aspect, a hob is provided that includes a first burner and a second burner. A first temperature sensor is adjacent to the first burner, and a second temperature sensor is adjacent to the second burner. A hob controller is operatively connected to the first temperature sensor to receive a first temperature signal from the first temperature sensor, and operatively connected to the second temperature sensor to receive a second temperature signal from the second temperature sensor. The hob controller is configured to determine, from the second temperature signal, the absence of a cooking vessel on the first burner, and automatically adjust downward a heat output from the first burner based on the absence of a cooking vessel. cooking on the first burner.
    [0006] According to another aspect, a hob is provided that includes a first gas burner and a second gas burner. A first temperature sensor is adjacent to the first gas burner, and a second temperature sensor is adjacent to the second gas burner, so that the second temperature sensor is closer to the second gas burner than to the first gas burner . The cooktop includes a first cooking pan support to support a cooking pan on the first gas burner. A first gas valve controls a first gas flow through the first gas valve to the first gas burner. A first valve actuator is operatively connected to the first gas valve and is configured to adjust the first gas flow through the first gas valve. A programmable hob controller is operatively connected to the first temperature sensor to receive a first temperature signal from the first temperature sensor, operatively connected to the second temperature sensor to receive a second temperature signal from the second temperature sensor, and operatively connected to the first valve actuator to control the operations of the first valve actuator. The programmable hob controller is programmed to determine the presence of a flame in the first gas burner from a level of the first temperature signal, to determine the presence of a flame in the second gas burner from a level of the second temperature signal, determine the absence of a cooking vessel on the first gas burner from the level of the second temperature signal and automatically adjust downward the first gas flow to the first gas burner based on the absence of a cooking container on the first gas burner.
    [0007] According to another aspect, a stove burner control method is provided. The method includes activating a first burner on the hob. A first temperature signal is received from a first temperature sensor adjacent to the first burner. A second temperature signal is received from a second temperature sensor, the second temperature sensor being distant from the first burner. It is determined whether a cooking vessel is missing from the first burner based on the level of the second temperature signal. A heat output from the first burner is automatically set down based on the absence of a cooking vessel from the first burner. BRIEF DESCRIPTION OF THE DRAWINGS
    [0008] Fig. 1 is a perspective view of a gas stove;
    [0009] Fig. 2 is a schematic view of a hob;
    [0010] Fig. 3 is a schematic block diagram of a control system for the hob; and
    [0011] Fig. 4 is a flow diagram. DETAILED DESCRIPTION
    [0012] The present matter refers to the detection of a cooking vessel on a hob. The present subject will now be described with reference to the drawings, in which similar reference numbers are used to refer to similar elements in all of them. It should be appreciated that the various drawings are not necessarily drawn to scale from one figure to another or within a given figure, and, in particular, that the size of the components are drawn arbitrarily to facilitate the understanding of the drawings. In the following description, for the sake of explanation, several specific details are presented in order to provide a complete understanding of the present matter. It may be evident, however, that the present matter can be practiced without these specific details. In addition, other embodiments of the matter are possible and the matter is capable of being practiced and carried out in ways other than those described. The terminology and phraseology used in the description of the object are used in order to promote an understanding of the matter in question and should not be taken as limiting.
    [0013] The heat radiated from an active burner on a hob will cause some degree of heating to remote parts of the hob (ie, “cross-heating”). The magnitude of such cross-heating is greater when there is no cooking vessel in the active burner. In this way, the magnitude of the cross-heating can be used to determine the presence or absence of a cooking vessel on an active burner. Temperature sensors can be located along the hob, away from the active burner, to capture the magnitude of the cross-heating. The output of the temperature sensors can be monitored to determine whether a cooking vessel is present or absent from the active burner. If the cooking vessel is absent, the heat output (for example, the flame level) from the active burner can be automatically reduced to a low level to conserve energy.
    [0014] The active burner may have an adjacent temperature sensor for detecting the presence of a flame in the active burner. The remote temperature sensors can be other adjacent inactive burners (that is, located much closer to an inactive burner than to the active burner). In this way, remote temperature sensors can be used not only to determine the presence of a cooking vessel in an active burner, but also for flame detection in an adjacent burner when the adjacent burner is active. Cooktops already equipped with flame detection temperature sensors can be configured to detect the cooking vessel through a firmware update, without the need for additional temperature sensors. Alternatively, remote temperature sensors not associated with any particular burner can be used for cooking vessel detection. In addition, the signals from various temperature sensors can be compared to detect a malfunction of the temperature sensor.
    [0015] Fig. 1 is a perspective view of a cooking appliance, such as a gas hob 10 with a hob 12 and an oven cavity. Fig. 2 is a schematic view of the hob 12. The cooking appliance does not need to have an oven cavity and could be merely a hob or hob having one or more burners.
    [0016] The hob 12 has burners 14, 16, 18, 20. The right front burner 20 has a cooking pan 22 in Fig. 1 and is considered an active burner. Burners 14, 16, 18, 20 can be gas burners, electric heating elements, induction heaters, etc. However, burners 14, 16, 18, 20 will be described here in the context of a gas hob. In this way, burners 14, 16, 18, 20 emit a flame to heat the cooking container 22 and any food products within the cooking container.
    [0017] The gas stove 10 includes a user interface device 24 for setting the flame level of a burner. As will be described in more detail with reference to Fig. 3, user interface device 24 provides an input signal to an electronic controller for the hob 12, and the electronic controller adjusts the flame level based on the inlet, through a gas valve actuated. Exemplary user interface devices 24 for controlling the heat output of the burners 14, 16, 18, 20 include rotary encoders, potentiometers, touch sensors and the like. The user interface for the gas stove can also include a screen 26 to transmit information to the user, such as level / temperature settings, alarm conditions, etc.
    [0018] The hob 12 shown in the figures has four burners 14, 16, 18, 20. However, it should be appreciated that the hob 12 may include less or more than four burners. At least one of the burners can be configured as an "automatic shut-off" burner, in which the heat output or flame level of the burner is automatically reduced to a low level when the cooking pan 22 is absent. Remote temperature sensors 28, 30, 34, 36 (ie temperature sensors not adjacent to the active burner) capture the cross-heating level of the auto-off burner 18, and based on the cross-heating level, a controller on the stove gas 10 can automatically adjust the flame level of the auto-off burner downwards. When the cooking pan 22 is placed on the auto-off burner 18, the cross-heating level will change and this change can be observed by the controller. The controller can respond to the change in cross-heating due to the presence of the cooking vessel 22 by adjusting the flame level back up to the level adjustment of the user interface device 24. The change in cross-heating could be a drop or a drop in cross-heating due to the cooking vessel 22 blocking the conduction of heat from the automatic switch-off burner to the remote temperature sensor. Alternatively, the change in cross-heating could be an increase in cross-heating due to the cooking vessel or structural elements of the hob, which increase the conduction of heat from the auto-off burner to the remote temperature sensor.
    [0019] Any of the burners 14, 16, 18, 20 can be configured as automatic shutdown burners. Each burner 14, 16, 18, 20 can have an adjacent temperature sensor 28, 30, 32, 34. In this way, temperature sensors 28, 30, 32, 34 can be adjacent to a burner, but away from the remaining burners . In certain embodiments, the hob 12 may include one or more additional temperature sensors 36 that are not adjacent to any burner, but are remote from all burners 14, 16, 18, 20.
    [0020] Temperature sensors 28, 30, 32, 34 that are adjacent to the burners can be used to determine the presence of a flame in the adjacent burner. Temperature sensors 28, 30, 32, 34 that are adjacent to the burners will emit a much higher signal level when the adjacent burner is active, compared to when a remote burner is active and the temperature sensor is heated by cross-heating . This difference in output can be exploited so that temperature sensors 28, 30, 32, 34 can be used for both local flame detection and remote cooking vessel detection.
    [0021] Temperature sensors 28, 30, 32, 34, 36 can be located to minimize your distance from one or more remote burners that must be configured as automatic shutdown burners. For example, as shown in Fig. 2, if all burners 14, 16, 18, 20 are to be configured as automatic shut-off burners, temperature sensors 28, 30, 32, 34, 36 can be positioned to generally face all the other burners. In this way, the temperature sensors 28, 30, 32, 34, 36 are positioned towards the center of the hob 12. If only one burner is to be configured as an auto-off burner, then the temperature sensors 28, 30, 32, 34, 36 can be positioned in the direction of that burner.
    [0022] Exemplary temperature sensors include thermocouples, thermistors, infrared sensors, etc. In an embodiment in which temperature sensors 28, 30, 32, 34, 36 include thermocouples, at room temperature, thermocouples can produce about 1 mV. When an adjacent burner is set to a high flame level, thermocouples can produce around 16 mV. Thermocouples can produce about 10-15 mV for lower flame levels in adjacent burners. Thermocouples can produce about 2 mV when cross-heated by a remote burner with a cooking vessel present on the remote burner. Thermocouples can produce about 3-4 mV when cross-heated by a remote burner with no cooking vessel present on the remote burner. Thus, by analyzing the signal levels of the various thermocouples (for example, from at least two thermocouples - one adjacent to an active burner and a remote from the active burner), both the presence of a flame in the active burner as well as the presence of a cooking vessel in the active burner can be determined.
    [0023] Located on each burner 14, 16, 18, 20 is a cooking pan support 38, 40, 42, 44. The cooking pan supports 38, 40, 42, 44 can be burner grids to support a cooking container 22 on the burners. Each burner 14, 16, 18, 20 can have its own separate cooking pan support, as shown in Fig. 1, or an integral grid covering several burners can provide multiple cooking pan supports. In certain embodiments, the cooking pan supports 38, 40, 42, 44 or other structural elements of the cooktop can be configured to conduct heat from an auto-off burner for remote temperature sensors. In this way, the cooking vessel supports 38, 40, 42, 44 or other structural elements can provide a mechanical amplification of the heat transmitted to the remote temperature sensors.
    [0024] Fig. 3 provides a schematic diagram of a control system 46 for gas stove 10. Control system 46 includes a hob controller 48. The hob controller 48 can be an electronic controller and can include one or more processors. For example, the hob controller 48 may include one or more of a microprocessor, a micro controller, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a system on a chip (SoC) , a field programmable gate matrix (FPGA), discrete logic circuits or similar. The hob controller 48 may also include memory 50 and may store program instructions, configuration files, look-up tables, etc., which allow the hob controller 48 to provide the functionality assigned to it in this document. Memory 50 may include one or more volatile, non-volatile, magnetic, optical or electrical media, such as read-only memory (ROM), random access memory (RAM), electrically erasable programmable ROM (EEPROM), flash memory or similar. The hob controller 48 may further include one or more analog-to-digital (A / D) converters for processing multiple analog inputs to the controller. The hob controller 48 can include multiple controllers or multiple control plates for distributed control functionality.
    [0025] The hob controller 48 is operatively connected to user interface 24 to receive user level settings for burners 14, 16, 18, 20. In certain embodiments, the hob controller 48 can communicate bidirectionally with user interface 24, which can allow the user interface to transmit information received from the hob controller to the user. For example, the hob controller 48 can send status information, alarm information, etc. for user interface 24, and the user interface can transmit this information to the user visually or audibly.
    [0026] The hob controller 48 is operatively connected to the temperature sensors 28, 30, 32, 34, 36 to receive temperature signals from the temperature sensors. For example, the hob controller 48 can receive analog signals, such as DC voltage signals, from temperature sensors 28, 30, 32, 34, 36, where the analog signal levels correspond to local temperatures in the temperature sensors. The hob controller 48 is programmed to correlate the signals received from temperature sensors 28, 30, 32, 34, 36 with specific temperatures, through a search table or conversion algorithm, for example.
    [0027] The hob includes flow control gas valves 52, 54, 56, 58 to control the flow of gas in each burner 14, 16, 18, 20. The heat output (for example, flame level ) of each burner 14, 16, 18, 20 can be adjusted by operating the appropriate gas valve 52, 54, 56, 58. Each gas valve 52, 54, 56, 58 is operatively connected or coupled to a valve actuator 60, 62, 64, 66 that operates the valve and adjusts the gas flow through the valve. An exemplary valve actuator is an electric motor, just like a stepper motor. The hob controller 48 is operatively connected to each valve actuator 60, 62, 64, 66 to control the operations of the valve actuators. Consequently, the hob controller 48 can individually adjust the gas flow through each gas valve 52, 54, 56, 58, controlling the movement of the actuators 60, 62, 64, 66, and thereby control the heat output (for example, flame level) from each burner 14, 16, 18, 20. For example, if valve actuators 60, 62, 64, 66 are stepper motors, the hob controller 48 can provide a series of impulses to the stepper motors to control the gas flow through gas valves 52, 54, 56, 58 and burners 14, 16, 18, 20. The hob controller 48 can be connected directly to valve actuators 60, 62, 64, 66 or indirectly connected to valve actuators, such as through interposition of electronic switches or relays, for example. The hob controller 48 can control the heat output of the burners 14, 16, 18, 20 based on the level settings received from the user via the user interface 24. In addition, the hob controller 48 can implement the automatic shutdown functionality described here through your control of the gas valves 52, 54, 56, 58.
    [0028] In certain embodiments, the burners can be electric heating elements or induction heaters and the hob controller 48 can electronically control the heat output of such burners, such as by means of pulse width modulation techniques , for example.
    [0029] The hob controller 48 can activate burners 14, 16, 18, 20, so that they are activated or lit. The control system 46 can include a lighter 68, such as a spark lighter, to light the burners, and the hob controller 48 can be operatively connected to the lighter to control its operations and activate the burners.
    [0030] Control system 46 for the gas stove may also include a main shut-off valve 70 to close the gas flow to all burners 14, 16, 18, 20. One side of the main shut-off valve 70 is connected to a gas supply line, and the other side of the main shut-off valve 70 can be connected to a manifold to supply gas to all burners 14, 16, 18, 20. A valve operator 72, such as a solenoid , is operatively connected to the main shut-off valve 70 to control its operations. The main shut-off valve 70 can be a normally closed valve, which is opened when valve operator 72 is energized. The hob controller 48 can be operatively connected to the valve operator 72 to control the operations of the valve operator 72 and the valve. When the hob controller 48 activates a burner, it monitors the temperature signal from the temperature sensor adjacent to the burner. The hob controller 48 can determine the presence of a flame in the active burner from the temperature signal level. If a flame is not detected due to a malfunction of the lighter, for example, the hob controller 48 can cut off the gas for all burners 14, 16, 18, 20 via the main shut-off valve 70.
    [0031] Since the hob controller 48 controls the operations of the burners and their gas valves, the hob controller 48 knows which burners are active and which burners are inactive. The hob controller 48 can determine whether or not a cooking vessel is absent from the active burner, based on the temperature signal levels of the temperature sensors adjacent to the inactive burners or other remote temperature sensors (for example, temperature sensor). temperature 36). As discussed above, the radiated heat from the active burner will result in cross-heating of the remote temperature sensors. The magnitude of the cross-heating is greater when no cooking vessel is present in the active burner. In this way, based on the temperature signal level of the remote temperature sensors, the hob controller 48 can determine whether a cooking vessel is missing from the active burner. If the hob controller 48 determines that a cooking vessel is absent from the active burner, it can automatically adjust the gas flow and flame level in the active burner downwards. The gas flow is automatically adjusted downwards from a flow level corresponding to the flame level setting desired by the user, which is received via the user interface 24. When the cooking vessel is no longer absent from the active burner, the cross-heating of the remote temperature sensors will change (for example, decrease), and a corresponding change in temperature can be observed by the hob controller 48 via the temperature signals from the remote temperature sensors. The hob controller 48 can determine the presence of the cooking vessel in the active burner and automatically adjust upward the gas flow level and flame level of the active burner to the flame level setting desired by the user. Automatic upward adjustment of the gas flow occurs after an automatic shutdown event (ie after determining the absence of the cooking vessel and automatically reducing the heat output of the active burner).
    [0032] The degree to which a remote temperature sensor is heated by cross-heating from an active burner will be determined by adjusting the flame level of the active burner and the physical configuration of the hob. For a particular hob style or model, experiments can be performed to establish expected signal levels from remote temperature sensors during cross-heating, with and without a cooking vessel present in an active burner, for various cooking level settings. different calls. The calibration of the control system 46 can be performed by a configuration file that details the size of the hob, the mounting location of each temperature sensor and / or burner and other information regarding the hob configuration. The configuration file can be created based on the experimental data on cross-heating that is obtained for the particular style or model of the hob. Different models or styles of hobs will therefore use different calibration files obtained from experimental data. The configuration file can be stored in the memory 50 of the hob controller 48 for use by the controller during the hob operation.
    [0033] In certain embodiments, the hob controller 48 can determine whether a temperature sensor 28, 30, 32, 34, 36 has failed, based on the difference between the temperature signal from the failed temperature sensor and the signals temperature of one or more other temperature sensors. For example, if the signal level of a remote temperature sensor is substantially different from one or more other remote temperature sensors, the hob controller 48 can determine that a temperature sensor malfunction has occurred. The hob controller 48 can then emit an appropriate alarm signal to user interface 24. In addition, if a burner is active, the hob controller 48 can expect a certain range of signal levels from remote temperature sensors based on the configuration file. If the signal level of a remote temperature sensor is outside the expected range, the hob controller 48 can determine that a temperature sensor malfunction has occurred and generate an appropriate alarm.
    [0034] Fig. 4 provides a flow diagram for an exemplary method of automatic burner shutdown. A burner is activated by the hob controller (step S100) and the hob controller receives a temperature signal from a temperature sensor adjacent to the active burner (step S102). From the temperature signal from the temperature sensor adjacent to the active burner, the hob controller can detect whether or not a flame has been established in the active burner (step S104). If no flame is detected, the hob controller can deactivate the burners (step S106) by operating the main shut-off valve. If a flame is detected, the hob controller can receive and monitor temperature signals from temperature sensors remote from the active burner (step S108). Based on the temperature signal levels of the remote temperature sensors, the hob controller can determine whether a cooking vessel is present or absent from the active burner (step S110). If the cooking vessel is present in the active burner, the heat output of the active burner will be adjusted to the desired level (step S112), as established by the user. If the cooking pan is missing from the active burner, the hob controller can reduce the heat output from the active burner to a low level (step S114). The low level can remain in effect until the presence of a cooking vessel in the active burner is subsequently detected by the hob controller.
    [0035] It should be evident that the present description is by way of example and that several changes can be made by adding, modifying or deleting details without departing from the clear scope of the teachings contained in the present description. The invention, therefore, is not limited to the specific details of the present description, except to the extent that the following claims are necessarily so limited.
    权利要求:
    Claims (20)
    [0001]
    1. Stove plate (48) characterized by comprising: a first burner (14); a second burner (16); a first temperature sensor (28) adjacent to the first burner (14); a second temperature sensor (30) adjacent to the second burner (16); and a hob controller operatively connected to the first temperature sensor (28) to receive a first temperature signal from the first temperature sensor (28), and operatively connected to the second temperature sensor (30) to receive a second temperature signal. temperature of the second temperature sensor (30), where the hob controller is configured to determine, from the second temperature signal, the absence of a cooking vessel (22) on the first burner (14), and to automatically adjust a heat output from the first burner (14) downwards based on the absence of a cooking vessel (22) on the first burner (14).
    [0002]
    2. Cooker plate according to claim 1, characterized in that: the first and second burners (14,16) are gas burners, and the cooker plate controller is further configured to determine the presence of a flame in the first burner (14) from the first temperature signal, and to determine the presence of a flame in the second burner (16) from the second temperature signal.
    [0003]
    Cooker plate according to claim 2, characterized in that the cooker plate controller is further configured to determine, from the first temperature signal, the absence of a cooking vessel (22) in the second burner (16 ), and to automatically adjust a heat output from the second burner (16) downwards based on the absence of a cooking vessel (22) on the second burner (16).
    [0004]
    4. Cooker plate according to claim 1, characterized in that the first and second burners (14,16) are gas burners, the cooker plate further comprising: a user interface device (24) operably connected to the controller hob plate for introducing a level setting for the first burner (14) in the hob controller, where the heat output of the first burner (14) is automatically adjusted downwards from the level setting with based on the absence of a cooking pan (22) on the first burner (14) and subsequently automatically adjusted upwards in the level setting by the hob controller based on the determination that a cooking pan (22) is not absent in the first burner (14), where the determination that a cooking vessel (22) is not absent in the first burner (14) is made by the hob controller based on the second temperature.
    [0005]
    Cooker plate according to claim 4, characterized in that the cooker plate controller is further configured to determine the presence of a flame in the first burner (14) from the first temperature signal.
    [0006]
    Cooker plate according to claim 1, characterized in that it further comprises: a third burner (18); and a third temperature sensor (32) adjacent to the third burner (18), where the hob controller is operatively connected to the third temperature sensor (32) to receive a third temperature signal from the third temperature sensor (32), and configured to determine a malfunction of the temperature sensor from a difference between the second temperature signal and the third temperature signal.
    [0007]
    Cooker plate according to claim 6, characterized in that the cooker plate controller is further configured to determine the presence of a flame in the first burner (14) from the first temperature signal, the presence of a flame in the second burner (16) from the second temperature signal, and the presence of a flame in the third burner (18) from the third temperature signal.
    [0008]
    8. Stove top characterized by comprising: a first gas burner (14); a second gas burner (16); a first temperature sensor (28) adjacent to the first gas burner (14); a second temperature sensor (30) adjacent to the second gas burner (16), such that the second temperature sensor (30) is closer to the second gas burner (16) than to the first gas burner (14); a first cooking pan support (38) for supporting a cooking pan (22) on the first gas burner (14); a first gas valve (52) for controlling a first gas flow through the first gas valve (52) to the first gas burner (14); a first valve actuator (60) operatively connected to the first gas valve (52) and configured to adjust the first gas flow through the first gas valve (52); and a programmable hob controller operatively connected to the first temperature sensor (28) to receive a first temperature signal from the first temperature sensor (28), operatively connected to the second temperature sensor (30) to receive a second temperature signal. temperature of the second temperature sensor (30), and operatively connected to the first valve actuator (60) to control the operations of the first valve actuator (60), where the programmable hob controller is programmed to: determine the presence of a flame in the first gas burner (14) from a level of the first temperature signal, determine the presence of a flame in the second gas burner (16) from a level of the second temperature signal, determine the absence of a cooking vessel (22) on the first gas burner (14) from the level of the second temperature signal, and automatically adjust the first gas flow down to the prime the first gas burner (14) based on the absence of a cooking vessel (22) in the first gas burner (14).
    [0009]
    Cooker plate according to claim 8, characterized in that the programmable cooktop controller is further programmed to determine a malfunction of the temperature sensor.
    [0010]
    Cooker plate according to claim 8, characterized in that it further comprises a second cooking vessel support (40) for supporting a cooking vessel (22) in the second gas burner (16); a second gas valve (54) for controlling a second gas flow through the second gas valve (54) to the second gas burner (16); and a second valve actuator (62) operatively connected to the second gas valve (54) and configured to adjust the second gas flow through the second gas valve (54), to which the programmable hob controller is operably connected the second valve actuator (62) to control the operations of the second valve actuator (62) and the programmable hob controller is programmed to determine the absence of a cooking vessel (22) in the second gas burner (16) from the level of the first temperature signal, and to automatically adjust the second gas flow down to the second gas burner (16) based on the absence of a cooking vessel (22) in the second gas burner (16) .
    [0011]
    11. Cooker plate according to claim 8, characterized in that it also comprises a user interface device (24) operatively connected to the programmable cooktop controller (48) for introducing a flame level configuration for the first gas burner (14) on the programmable hob controller, where the first gas flow to the first gas burner (14) is automatically adjusted downwards from a flow level corresponding to the flame level setting, based on the absence of a cooking vessel (22) on the first gas burner (14) and subsequently automatically adjusted upwards to the flow level corresponding to the flame level setting by the programmable cooktop controller (48) based on the determination that a cooking vessel (22) is not absent on the first gas burner (14), wherein the determination that a cooking vessel (22) is not absent on the first the gas burner (14) is made by the hob controller (48) programmable based on the second temperature signal.
    [0012]
    Cooker plate according to claim 8, characterized in that it also comprises a third temperature sensor (32), in which: the first temperature sensor (28) is closer to the first gas burner (14) than the third temperature sensor (32), the programmable hob controller is operatively connected to the third temperature sensor (32) to receive a third temperature signal from the third temperature sensor (32), and the hob controller programmable is programmed to determine a malfunction of the temperature sensor from the difference between the level of the second temperature signal and the level of the third temperature signal while the first gas burner (14) operates.
    [0013]
    Cooker plate according to claim 12, characterized in that it also comprises a third gas burner (18), wherein the third temperature sensor (32) is adjacent to the third gas burner (18).
    [0014]
    14. A hob burner control method as defined in any of claims 1 to 13, characterized in that it comprises the steps of: activating a first hob burner (14) of the hob (48); receiving a first temperature signal from a first temperature sensor (28) adjacent to the first burner (14); receiving a second temperature signal from a second temperature sensor (30), the second temperature sensor (30) being distant from the first burner (14); determining whether a cooking vessel (22) is absent from the first burner (14) based on a level of the second temperature signal; and automatically adjusting a heat output from the first burner (14) downwards based on the absence of a cooking vessel (22) from the first burner (14).
    [0015]
    Method according to claim 14, characterized in that the step of activating the first burner (14) includes igniting a gas flow from the first burner (14).
    [0016]
    16. Method according to claim 15, characterized in that it further comprises the step of determining the presence of a flame in the first burner (14) based on a level of the first temperature signal.
    [0017]
    17. Method according to claim 15, characterized in that it further comprises the steps of: determining the presence of a flame in a second burner (16) adjacent to the second temperature sensor (30) based on the level of the second temperature signal ; determining whether a cooking vessel (22) is absent from the second burner (16) based on a level of the first temperature signal; and automatically adjusting a flame level of the second burner (16) downwards based on the absence of a cooking vessel (22) of the second burner (16).
    [0018]
    18. The method of claim 14, further comprising the steps of: receiving a level setting for the first burner (14) from a user interface device (24); and then automatically adjust the heat output of the first burner (14) automatically downward, automatically adjust the heat output of the first burner (14) automatically to the level setting after determining that a cooking vessel (22) it is not absent in the first burner (14), in which the determination that a cooking vessel (22) is not absent in the first burner (14) is based on the level of the second temperature signal.
    [0019]
    19. Method according to claim 14, characterized in that it further comprises the steps of: receiving a third temperature signal from a third temperature sensor (32), the third temperature sensor (32) being distant from the first burner (14 ); and determining a malfunction of the temperature sensor based on a difference between the level of the second temperature signal and the level of the third temperature signal.
    [0020]
    20. Method according to claim 19, characterized in that it further comprises the steps of: determining the presence of a flame in the first burner (14) based on a level of the first temperature signal; determining the presence of a flame in a second burner (16) adjacent to the second temperature sensor (30), based on the level of the second temperature signal; and determining the presence of a flame in the third burner (18) adjacent to the third temperature sensor (32), based on the level of the third temperature signal.
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    同族专利:
    公开号 | 公开日
    RU2015145737A|2017-05-16|
    US20140295357A1|2014-10-02|
    US9599345B2|2017-03-21|
    AU2014241715A1|2015-10-08|
    AU2014241715B2|2018-06-14|
    CN105264295B|2017-09-12|
    EP2979034A1|2016-02-03|
    BR112015024751A2|2017-07-18|
    RU2651734C2|2018-04-23|
    CN105264295A|2016-01-20|
    WO2014160570A1|2014-10-02|
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    法律状态:
    2018-11-13| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2020-04-22| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-12-08| B09A| Decision: intention to grant|
    2021-01-26| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/03/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201361805640P| true| 2013-03-27|2013-03-27|
    US61/805,640|2013-03-27|
    US14/219,331|US9599345B2|2013-03-27|2014-03-19|Cross heating thermocouple based pan sensing|
    PCT/US2014/031194|WO2014160570A1|2013-03-27|2014-03-19|Cross heating thermocouple based pan sensing|
    US14/219,331|2014-03-19|
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