![]() Sensor for lighting control with constant current converters
专利摘要:
The present invention relates to a sensor with at least one input connection (x1, x2) for electrical connection to an operating device (1) for lighting means (3a, 3b), at least one output connection (x3, x4, x5) for electrical connection with the lighting means and a Circuit (5) for supplying voltage to the sensor (2), the circuit (5) being designed in such a way that the circuit (5) receives a voltage to supply the sensor (2) from that of the operating device (13) for operating the lamp (3a, 3b) generated constant current generated. 公开号:AT16798U1 申请号:TGM200/2015U 申请日:2015-07-07 公开日:2020-09-15 发明作者: 申请人:Tridonic Gmbh & Co Kg; IPC主号:
专利说明:
description SENSOR SUPPLY WITH A CONSTANT CURRENT CONVERTER FOR LIGHT SOURCES The present invention relates to a sensor for connection to an operating device for lighting means according to the preamble of claim 1 and an existing system of such a sensor and an operating device for lighting means for operating lighting means. In lighting systems, operating devices are often used to operate light sources, such as gas discharge lamps, halogen lamps and in particular light emitting diodes (LED), with the help of which, for example, the function of the light source is monitored, the light source started and / or dimmed. By means of sensors, which e.g. Detecting movements of objects and / or the ambient brightness and sending corresponding control signals to the operating device, the illuminants can be switched on / off automatically when a person is present or absent or the dimming of the illuminants can be automatically adapted to the ambient brightness. [0003] Sensors for lighting control must be provided with a feed / supply for operation. The power can be supplied from the mains with an additional power supply unit with a conversion of alternating current into direct current (AC / DC), or via the additional supply output for a sensor on the operating device or directly from a bus system. However, such supplies require additional space in the lamp and / or a circuit for galvanic isolation. A simple retrofitting of a sensor is only possible if there is a corresponding, separate supply output or a suitable bus system (interface) on the operating device. [0005] The invention is based on the object of specifying devices and methods which reduce the problems described. The task is in particular to provide a sensor and a system for operating lamps with which a simple and inexpensive retrofitting of a sensor for operating devices without separate connections for a sensor is possible and no additional separate feed / connection line is necessary for the voltage supply of the sensor. This object is achieved according to the features of the independent claims. The invention is further developed by the features of the dependent claims. According to the present invention, the sensor has at least one input terminal for electrical connection with an operating device for lighting means, at least one output terminal for electrical connection with the lighting means and a circuit for supplying voltage to the sensor, the sensor depending on a detection so a means of the sensor detected event or state of the environment switches the lighting means and the circuit is designed such that the circuit generates a voltage for supplying the sensor from the constant current generated by the operating device for operating the lighting means. The sensor according to the present invention can also be supplied to the sensor directly, starting from the connections of the operating device to which the lamp or lamps are to be connected. No additional power supply or connection line outside the sensor is required to supply the sensor. Due to the coupling on the secondary side of the control gear, which can be, for example, a constant current converter, sensors can be designed with the smallest possible design in the case of operation with safety extra low voltage (SELV) and protective separation. The sensor can have two output connections for electrical connection to the lighting means and short-circuit or bridge these depending on the detection, so that a current flow through the lighting means is suppressed and the lighting means is switched off. Alternatively or in addition, the circuit for supplying voltage to the sensor can be electrically connected to one of the at least one input terminal for electrical connection to the operating device and one of the at least one output terminal for electrical connection to the lighting means. With this arrangement, the circuit can be fed via the input connection and the lighting means connected to the operating device (switched on or short-circuited). Alternatively, the sensor can have two input connections for electrical connection to the operating device, the circuit for supplying voltage to the sensor being electrically connected to the two input connections. In this arrangement, the light source can be coupled to the two input connections by the sensor or, if the light source is already electrically connected to one of the two input connections via an external line, can be coupled to the other input connection, decoupling by the sensor depending on the acquisition takes place. Alternatively or additionally, the sensor can electrically connect an input connection to an output connection as a function of the detection. With this arrangement, the lighting means connected to the output connection and connected to the other input connection can be switched on and off by the sensor. Alternatively or additionally, the sensor can switch the lighting means in a timed manner depending on the detection or control the brightness of the lighting means by means of pulse width modulation. Alternatively or additionally, the sensor can have a communication unit for sending and / or receiving control signals by means of infrared or radio to / from an operating device or an interface. Using the control signals, the sensor can be set / programmed or the light source can be switched on / off or dimmed. The control signals can be sent from a remote control or another sensor. According to the present invention, the system for operating lighting means has at least one of the sensors described above, at least one operating device feeding the sensor, and at least one lighting means switchable by the sensor. The at least one lamp switchable by the sensor can be an LED and the operating device can be an LED operating device with a constant current converter. Alternatively or additionally, the system can have a plurality of lighting means divided into two or more blocks, the sensor switching at least one of the blocks as a function of the detection. Alternatively or in addition, at least one block for indirect lighting and at least one block for direct lighting can be provided, the sensor switching the block provided for direct lighting as a function of the detection. Alternatively or in addition, at least one block for a basic lighting in the absence and at least one block for a main lighting in the presence can be provided, the sensor being designed to detect the presence of people and the block provided for the main lighting depending on the to switch detected presence. Alternatively or additionally, the sensor can be designed to detect an ambient brightness and to switch the at least one of the blocks as a function of the detected ambient brightness. Alternatively or additionally, the system can have a remote control for inputting switching commands from a user and for sending control signals corresponding to the inputted switching commands to the sensor by means of infrared or radio. As an alternative or in addition, the system can consist of several lamps, each of which has a sensor, an operating device and at least one lamp switchable by the sensor. sen, exist, with at least two sensors each having a communication unit for the transmission of control signals between the sensors. [0023] The invention is explained in more detail below with reference to the accompanying drawings. Show it: 1 shows a first embodiment of a system for operating lighting means according to the present invention, Fig. 2 shows a first embodiment of a sensor according to the present invention, 3 shows a second exemplary embodiment of a system for operating lighting means according to the present invention, and 4 shows a third exemplary embodiment of a system for operating lighting means according to the present invention, 5 shows a fourth exemplary embodiment of a system for operating lighting means according to the present invention, and FIG 6 shows a fifth embodiment of a system for operating lighting means according to the present invention, Components with the same functions are identified in the figures with the same reference symbols. Fig. 1 shows a system for operating lighting means according to the present invention. The system consists of an operating device 1 having a mains connection L, N, a sensor 2 which is connected to the output of the operating device 1 via its input connections x1, x2, and a light source 3 connected to the output connections x3, x4 of the sensor 2. The lighting means 3 can comprise a light emitting diode (LED) or several LEDs. The LEDs can be inorganic or organic LEDs. The multiple LEDs can be connected in series or in parallel. The plurality of LEDs can also be connected in more complex arrangements, for example in a plurality of series connections connected in parallel to one another. The operating device 1 can be a constant current converter, e.g. be an LED converter that generates the electricity required to operate the LEDs from the mains voltage. Between the mains (primary side) and the output of the operating device 1 (secondary side) to which the sensor 2 is connected, the operating device 1 can provide electrical isolation (protective separation) and convert the line voltage into a safety extra-low voltage (SELV). Fig. 2 shows schematically the structure of the sensor 2 shown in Fig. 1. The sensor 2 has a control circuit 4 which has one or more sensor units (not shown) for detecting and evaluating movement, brightness and / or noise and means for controlling / switching (dashed line) the switch S1, and a circuit 5 (supply) for supplying voltage to the sensor 2 or the control circuit 4. In this exemplary embodiment, the circuit 5 is connected in parallel to the input connections x1 and x2 - and thus in parallel with the output of the operating device 1. The circuit 5 generates a suitable voltage for supplying the control circuit 4 of the sensor 2 from the constant DC voltage / current output by the operating device 1 for operating the lighting means 3. For this purpose, the circuit 5 can have a DC voltage converter, a resistor or a voltage divider. The control circuit 4 is supplied with voltage via the circuit 5 and is connected to the output of the circuit 5 and the input connection x2 and the output connection x4 of the sensor 2. The input connection x2 and the output connection x4 of the sensor 2 are at the same potential (e.g. ground). The connection between the input connection x1 and the output connection x3 of the sensor 2 can be controlled by the switch S1, which depends on the detection of the control circuit 4 of the sensor 2 is switched by the control circuit 4, are separated. When switched on, the input connections x1, x2 of the sensor 2 are connected to the output connections x3, x4 of the sensor 2, so that the lighting means 3 is fed by the operating device 1. If the switch S1 is switched off, the supply of the lighting means 3 is interrupted, the control circuit 4 of the sensor 2 still being supplied by the circuit 5 for the detection of, for example, movement, brightness and / or noise. Switching on and off can be timed by means of pulse width modulation (PWM). As can be seen in Fig. 1 and Fig. 2, the sensor 2 according to the present invention can be integrated / inserted into a lighting system (or lamp) consisting of the operating device 1 and a lamp 3 in a simple manner. 3 shows a further exemplary embodiment of a system for operating lighting means with a sensor 2 according to the present invention. The lighting system shown in Fig. 3 has two series-connected illuminants 3a and 3b (LED blocks 3a, 3b), the illuminant 3b (the LED block 3b) being connected in parallel to the output terminals x3, x4 of the sensor. The series connection of the lighting means 3a, 3b is connected in parallel to the outputs of the operating device 1. The circuit 5 of the sensor 2 is connected to the input connection x1, the output connection x3 and, when the switch S1 is closed, also to the output connection x4, so that a current flow to supply the circuit 5 from the operating device 1 via the input connection x1, the output connection x3 and the lamp 3b or via the input connection x1, the closed switch S1 and the output connection x4. With the switch S1 coupled to the output connections x3, x4 of the sensor, the illuminant 3b (the block 3b) can be bridged or short-circuited so that the illuminant 3b is switched on or off depending on the detection of the control circuit 4 of the sensor 2 can be while the lighting means 3a (block 3a) is permanently lit or is constantly supplied by the operating device 1. This lighting system can be used in a lamp or a lamp module with indirect and direct lighting, block 3a being assigned to the indirect basic lighting and block 3b being assigned to the direct lighting. The direct portion of the lighting can be switched on and off on the basis of sensor data and their evaluation by the control circuit 4 of the sensor 2. Alternatively or additionally, a block, the block 3a, can be assigned to the basic lighting in a lamp or a lamp module and light up permanently when the lamp is switched on, whereas the second block, the block 3b, only when a person is detected is switched on near the luminaire. Alternatively or additionally, in the case of a lamp or a lamp module, the second block, the block 3b, can be switched on in addition to the first, permanently illuminated block, depending on the detected ambient light / brightness. If there is enough ambient light, the lamp can reduce the lighting by switching off block 3b. This allows the illuminance e.g. be kept constant in a certain range. Alternatively, the light emission of block 3b can be continuously adapted to the ambient light by means of PWM. The number of lighting means 3b that can be switched on and off is not limited to one and can be increased according to the performance of the operating device 1, since the operating device 1 drives a constant current through all of the series-connected lighting means 3a, 3b. FIG. 4 shows an exemplary embodiment according to the present invention in which the lighting means 3a shown in FIG. 3 can also be switched by the sensor 3. In the system shown in FIG. 4 for operating lighting means according to the present invention, the lighting means 3a connected in series with the lighting means 3b is connected to an output connection x5 of the sensor 2, which is connected to the input connection x1 of the sensor 2 via a switch S2, connected. With the switch S2, the lighting means 3a can be switched on or off depending on the sensor detection. The lighting means 3b is switched on or off when the switch S2 is open using the switch S1. The current flow for supplying the control circuit 4 of the sensor 2 takes place - as in FIG. 3 - from the operating device 1 via the input connection x1, the output connection x3 and the lighting means 3b or via the input connection x1, the closed switch S1 and the output connection x4. In the embodiment of a system for operating lighting means according to the present invention shown in FIG. 5, the circuit 5 of the sensor 2 is connected in parallel to the input terminals x1 and x2. The control circuit 4 is coupled to the circuit 5 and the input connection x2 for supply. The arrangement of the switches S1, S2 and the lighting means 3a, 3b corresponds to the arrangement in FIG. 4. 6 shows an embodiment of a system for operating lighting means according to the present invention, in which the control circuit 4 of the sensor 2 has a communication unit (not shown) for receiving control signals via an infrared or radio link 6 from an operating device 7 having. The control circuit 4 can be set / programmed or caused to switch on / off or dimming one of the illuminants 3a, 3b by means of the control signals. It is also possible to use the remote control to enter or change threshold values for the detection, switching times and / or a switch-on duration from detection or to query set values from the control circuit 4 using the operating device 7 and display them on it. Alternatively or additionally, the communication unit can be designed for sending and / or receiving control signals by means of an infrared or radio link 6 from a control circuit 4 of another sensor (not shown). This could make it possible that when a person is detected by a lighting system / lamp, other lamps connected to this lamp via the infrared or radio link 6 in a room are also switched on. In the exemplary embodiments shown in FIGS. 3 to 6, the line runs from the output connection x4 to the operating device 1 outside the sensor 2. However, it is possible for this line to go from one or the input connection x2 to the output connection x4 inside the sensor 2 in order not to have to lay an additional line outside of the sensor 2.
权利要求:
Claims (10) [1] 1. having sensor: - At least one input connection (x1, x2) for electrical connection to an operating device (1) for lighting means (3a, 3b), and - At least one output connection (x3, x4, x5) for the electrical connection to the illuminant, the sensor (2) switching the illuminant (3a, 3b) depending on the detection of the sensor (2), characterized in that the sensor (2 ) has a circuit (5) for supplying voltage to the sensor (2), the circuit (5) being designed such that the circuit (5) provides a voltage for supplying the sensor (2) from one of the operating device (13) for the Operation of the lighting means (3a, 3b) generated constant current generated. [2] 2. Sensor according to claim 1, characterized in that the sensor (2) has two output connections (x3, x4) for electrical connection to the lighting means, and that the sensor (2), depending on the detection, the two output connections (x3, x4 ) shorts. [3] 3. Sensor according to claim 1 or 2, characterized in that the circuit (5) for supplying voltage to the sensor (2) with one of the at least one input connection (x1, x2) for electrical connection to the operating device (1) and one of the at least one Output connection (x3) is electrically connected for electrical connection with the lamp. [4] 4. Sensor according to one of the preceding claims, characterized in that the sensor (2) has two input connections (x1, x2) for electrical connection to the operating device (1), and the circuit (5) for supplying voltage to the sensor (2) is electrically connected to the two input terminals (x1, x2); and / or that the sensor (2) depending on the detection of one of the at least one input connection (x1, x2) for electrical connection to the operating device (1) with one of the at least one output connection (x5) for electrical connection with the lighting means (3a , 3b) electrically connects; and / or that the sensor (2) switches the lighting means (3a, 3b) in a timed manner depending on a detection by the sensor (2); and / or that the sensor (2) has a communication unit for sending and / or receiving control signals by means of infrared or radio (6). [5] 5. System for operating lighting means, characterized in that the system has: - at least one sensor (2) according to one of claims 1 to 4, - at least one operating device (1) feeding the sensor (2), and - at least one of the sensor switchable light source (3a, 3b). [6] 6. System according to claim 5, characterized in that the at least one of the sensor (2) switchable lighting means (3a, 3b) is an LED, and that the operating device (1) is an LED operating device with a constant current converter. [7] 7. System according to claim 5 or 6, characterized in that the system has several lighting means (3a, 3b) divided into two or more blocks, and that the sensor (2) switches at least one of the blocks as a function of the detection. [8] 8. System according to claim 7, characterized in that at least one block for indirect lighting and at least one block for direct lighting are provided, and that the sensor (2) switches the block provided for direct lighting as a function of the detection; and / or that at least one block for basic lighting when absent and at least one block for main lighting when absent are provided, and that the sensor (2) is designed to detect the presence of people and the block provided for the main lighting as a function of the detected presence switches. [9] 9. System according to claim 7 or 8, characterized in that the sensor (2) is designed to detect an ambient brightness and switches the at least one of the blocks as a function of the detected ambient brightness. [10] 10. System according to one of claims 5 to 9 with a sensor according to claim 4, characterized in that the system has a remote control for inputting switching commands from a user and for sending control signals corresponding to the inputted switching commands to the sensor by means of infrared or radio; and / or that the system consists of several lights, each having the sensor, the operating device and at least one lamp switchable by the sensor, and at least two sensors each have a communication unit for transmitting control signals between the sensors. In addition 6 sheets of drawings
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申请号 | 申请日 | 专利标题 DE102015211454.6A|DE102015211454A1|2015-06-22|2015-06-22|Sensor supply with a constant current converter for lamps| 相关专利
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