• 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:
    The present invention relates to a twin compressor control method of an air conditioner, the operation condition input step of inputting the operation mode and the set temperature of the air conditioner, and the operation mode discrimination to determine whether the operation mode of the air conditioner is the strong operation mode. In the operation mode determination step, if the operation mode of the air conditioner is the strong operation mode, connecting the driven shaft to the rotary shaft of the compressor motor, then the driven shaft connection step of proceeding the operation mode determination step, the air in the operation mode determination step If the operation mode of the harmonic is not the strong operation mode, the indoor temperature comparison step is performed to compare the driven shaft with the indoor temperature and the reference temperature if the indoor temperature is higher than the reference temperature. If the temperature is below, the driven shaft is separated from the rotating shaft of the compressor motor and then the driven shaft is separated. Independent inverter circuit for varying refrigerant compression capacity by operating the upper and lower compression units of twin compressors at the same time or by operating only the upper compression unit according to the difference between the set temperature and the room temperature. It is possible not only to efficiently change the refrigerant compression capacity without using, but also to reduce the power consumption.
    公开号:KR19990074288A
    申请号:KR1019980007766
    申请日:1998-03-09
    公开日:1999-10-05
    发明作者:김영국
    申请人:윤종용；삼성전자 주식회사；
    IPC主号:
    专利说明:

    Twin compressor control method of air conditioner
    The present invention relates to a twin compressor control method of an air conditioner, and more particularly, to control a twin compressor including a plurality of compression units which receive power from a compressor motor and suck and compress gas refrigerant from an accumulator. The present invention relates to a twin compressor control method of an air conditioner.
    In general, the refrigerant cycle of the air conditioner used as both air conditioning and heating can be illustrated as shown in FIG. 1, wherein the solid line shown in FIG. 1 is a refrigerant cycle at the time of cooling, and the dotted line represents the refrigerant cycle at the time of heating.
    That is, during the cooling operation, the refrigerant compressed by the compressor 11 into the high temperature and high pressure gas flows into the outdoor heat exchanger 15 through the four-way valve 13, and the high temperature and high pressure flows into the outdoor heat exchanger 15. The gas refrigerant is liquefied by heat exchange by the air blown by the outdoor fan 17.
    Subsequently, the refrigerant liquefied in the outdoor heat exchanger (15) is decompressed to a low temperature low pressure liquid refrigerant through the bypass passage (19) and the first capillary tube (21). 1 By receiving the low-temperature low-pressure refrigerant depressurized by the capillary tube 21 and exchanging air blown by the indoor fan 25 by the latent heat of evaporation of the refrigerant, the cold air is discharged to the room to perform cooling, and the indoor heat exchanger 23 The gas refrigerant at room temperature and low pressure output from the suction is again sucked into the compressor 11 to form a refrigerant cycle which is repeatedly circulated as shown in FIG. 1.
    In the heating operation, when the refrigerant compressed by the compressor 11 to the gas of high temperature and high pressure flows into the indoor heat exchanger 23 through the four-way valve 13, the air blown by the indoor fan 25 is exchanged. Thus, warm air is discharged into the room to perform heating.
    Subsequently, the refrigerant liquefied in the indoor heat exchanger (23) is decompressed to the low temperature and low pressure refrigerant through the first and second capillaries (21, 27), and thus the first and second in the outdoor heat exchanger (15). Receives the low temperature low pressure refrigerant passing through the capillaries 21 and 27 and cools the air blown by the outdoor fan 17 by heat exchange by the latent heat of evaporation of the refrigerant, and the low temperature low pressure cooled by the outdoor heat exchanger 15. The gas refrigerant is again sucked into the compressor 11 to form a refrigerant cycle that is repeatedly circulated as shown by the dotted line in FIG.
    In the conventional twin compressor used in the air conditioner having the refrigerant cycle as described above, as shown in FIG. 2, the stator 31 is installed inside the sealed case 30 and the inside of the stator 31. The rotor 33 having a rotating shaft 32 is provided to be rotatable, and the lower side of the rotating shaft 32 receives power from the rotating shaft 32 to suck and compress gas refrigerant from the accumulator 60. Next, the upper compression unit 40 and the lower compression unit 50 are discharged in order, and the upper side of the case 30 has a high temperature and high pressure discharged from the upper compression unit 40 and the lower compression unit 50. A discharge port 35 for discharging the gas refrigerant to the outside of the case 30 is provided.
    The upper compression unit 40 is installed in the upper cylinder 41 and the upper cylinder 41 and consists of an upper roller 42 which is eccentrically rotated by receiving power from the rotating shaft 32, the upper cylinder One side of 41 is connected with an upper suction pipe 62 for sucking gas refrigerant from the accumulator 60.
    In addition, the lower compression unit 50 is installed in the lower cylinder 51 and the lower cylinder 51 is composed of a lower roller 52 which is eccentrically rotated by receiving power from the rotating shaft 32, One side of the lower cylinder 51 is connected with a lower suction pipe 64 for sucking gas refrigerant from the accumulator 60.
    In the twin compressor having such a structure, when a current is applied to the stator 31, a magnetic field is generated. As the rotor 33 rotates by the magnetic field, the rotating shaft 32 also rotates.
    When the rotating shaft 32 is rotated as described above, the upper cylinder 41 and the lower cylinder 51 by the eccentric rotation of the upper roller 42 and the lower roller 52 which rotates by receiving power from the rotating shaft 32. Inside the suction space and the compression space is formed, wherein the upper roller 42 and the lower roller 52 from the accumulator 60 by the suction force acting while repeating rotation in a predetermined direction (the upper suction pipe ( 62) and the gas refrigerant is sucked through the lower suction pipe 64, and the gas refrigerant compressed to high temperature and high pressure is discharged to the outside of the case 30 through the discharge port 35.
    That is, in the conventional twin compressor as described above, the upper roller 42 and the lower roller 52 are connected to the rotating shaft 32, respectively, so that the upper cylinder 41 and the lower cylinder 51 according to the rotation of the rotating shaft 32. By simultaneously compressing the refrigerant within the), not only the refrigerant compression efficiency is improved but also the vibration is reduced.
    However, the conventional twin compressor as described above has a problem in that the cooling and cooling capacity of the air conditioner cannot be changed as the refrigerant compression capacity is constant by simultaneously performing the refrigerant compression in the upper and lower cylinders.
    In addition, in order to vary the refrigerant compression capacity of the conventional twin compressor as described above, the rotational speed of the compressor motor must be adjusted. To implement this, there is a problem that the structure of the air conditioner is complicated by requiring a separate inverter circuit.
    Accordingly, the present invention is to solve the above problems of the prior art, according to the difference between the set temperature and the room temperature to operate the upper and lower compression unit of the twin compressor at the same time or only the upper compression unit to operate the refrigerant compression capacity By varying the efficiency of the compressor, it is possible to efficiently change the refrigerant compression capacity without using a separate inverter circuit for varying the refrigerant compression capacity, and to provide a twin compressor control method of an air conditioner that can reduce power consumption. There is a purpose.
    Twin compressor control method of the air conditioner according to the present invention for achieving the above object, by receiving the power from the rotary shaft of the compressor motor to perform the refrigerant compression to perform the refrigerant compression by receiving the power from the driven shaft and the driven shaft In a twin compressor of an air conditioner including a lower compressor, an operation condition input step of inputting an operation mode and a set temperature of the air conditioner, and an operation mode for determining whether the operation mode of the air conditioner is the strong operation mode. If the operation mode of the air conditioner in the determination step, the operation mode determination step, the driven shaft connection step of connecting the driven shaft to the rotary shaft of the compressor motor and then proceeds to the operation mode determination step, in the operation mode determination step If the operation mode of the air conditioner is not the strong operation mode, the room temperature is determined by comparing the room temperature with the reference temperature. If the temperature is equal to or greater than the indoor temperature comparison step of performing the driven shaft connection step, and if the indoor temperature is less than the reference temperature in the indoor temperature comparison step, the driven shaft is separated from the rotating shaft of the compressor motor and then the operation mode discrimination step is performed. Characterized in that it consists of a coaxial separation step.
    1 is a refrigerant cycle diagram of a general air conditioning air conditioner,
    2 is a schematic structural diagram of a conventional twin compressor;
    3 is a schematic structural diagram of a twin compressor according to the present invention;
    4 is a configuration diagram of a driven shaft driving unit according to the present invention;
    5 is a block diagram of an operation controller of an air conditioner performing a twin compressor control method of an air conditioner according to the present invention;
    6 is a flow chart of the twin compressor control method of the air conditioner according to the present invention.
    <Explanation of symbols for the main parts of the drawings>
    30: case 31: stator
    32: axis of rotation 33: rotor
    35 discharge port 36 connection portion
    37: connection portion 40: upper compression portion
    41: upper cylinder 42: upper roller
    50: lower compression section 51: lower cylinder
    52: lower roller 60: accumulator
    62: upper suction pipe 64: lower suction pipe
    70: driven shaft drive portion 72: compression spring
    74: electromagnet 76: power supply
    80: driven shaft SW: switch
    100: power supply unit 102: operation control unit
    104: control unit 106: room temperature detection unit
    108: indoor heat exchanger temperature detection unit 110: outdoor temperature detection unit
    120: wind direction control blade drive unit 122: compressor drive unit
    124: outdoor fan motor drive unit 126: indoor fan motor drive unit
    128: four-way valve drive unit 130: display unit
    Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    3 is a schematic structural diagram of a twin compressor according to the present invention, and FIG. 4 is a configuration diagram of a driven shaft driving unit according to the present invention, and FIGS. 3 and 4 show that the driven shaft 80 is separated from the rotating shaft 32. The state is shown and the same code | symbol is attached | subjected about the same part as FIG.
    As shown in FIG. 3, in the twin compressor according to the present invention, a stator 31 is installed inside the sealed case 30 and a rotor having a rotation shaft 32 inside the stator 31. 33 is rotatably installed, and discharges the gas refrigerant compressed to high temperature and high pressure by the upper compression part 40 and the lower compression part 50 to the outside of the case 30 on the upper side of the case 30. The discharge port 35 for making it is provided.
    In addition, the rotary shaft 32 is provided with an upper compression portion 40 for receiving power from the rotary shaft 32 to suck and compress the gas refrigerant from the accumulator 60 and then discharge it.
    The upper compression unit 40 is configured to include an upper cylinder 41 and an upper roller 42 installed inside the upper cylinder 41 to receive power from the rotating shaft 32 to rotate. One side of the upper cylinder 41 is connected with an upper suction pipe 62 for sucking gas refrigerant from the accumulator 60.
    In addition, a lower portion of the rotating shaft 32 is connected to the rotating shaft 32 is provided with a driven shaft 80 is rotated by receiving power from the rotating shaft 32 or separated from the rotating shaft 32, the blood The coaxial 80 is provided with a lower compression unit 50 which receives power from the driven shaft 80, sucks gas refrigerant from the accumulator 60, compresses the gas refrigerant, and discharges the gas refrigerant.
    The lower compression unit 50 is configured to include a lower cylinder 51 and a lower roller 52 installed inside the lower cylinder 51 to receive power from the driven shaft 80 and rotate. One side of the lower cylinder 51 is connected to a lower suction pipe 64 for sucking gas refrigerant from the accumulator 60.
    In addition, a lower portion of the driven shaft 80 connects the driven shaft 80 to the rotating shaft 32 or separates the rotating shaft 32 from the rotating shaft 32 such that the driven shaft 80 is interlocked with the rotating shaft 32. 70 is provided.
    As shown in FIG. 4, the driven shaft driving unit 70 raises the driven shaft 80 by the elastic force so that the driven shaft 80 rotates by receiving power from the rotation shaft 32. ) Is connected to the rotating shaft 32 and the compression spring 72 and, when the switch (SW) "on" receives power from the power supply unit 76 generates a magnetic force forcibly lowering the driven shaft (80) And an electromagnet 74 for separating the driven shaft 80 from the rotation shaft 32.
    In addition, the connecting portion 36 at the lower end of the rotating shaft 32 and the connecting portion 37 at the upper end of the driven shaft 80 connected to the connecting portion 36 in a clutch structure are connected to the rotating shaft 32 and the driven shaft 30. As a result, the driven shaft 80 receives power from the rotating shaft 32, or the driven shaft 80 has a concave-convex structure in which the driven shaft 80 is easily separated from the rotating shaft 32.
    5 is a block diagram of an operation control apparatus of an air conditioner for performing a twin compressor control method of an air conditioner according to the present invention, wherein the operation control apparatus of the air conditioner includes a power supply unit 100 and an operation operation unit. (102), control unit 104, indoor temperature detection unit 106, indoor heat exchanger temperature detection unit 108, outdoor temperature detection unit 110, wind direction control wing drive unit 120, compressor drive unit 122, driven football The eastern part 70, the outdoor fan motor drive part 124, the indoor fan motor drive part 126, the four-way valve drive part 128, and the display part 130 are comprised.
    The power supply unit 100 is configured to convert a commercial AC voltage supplied from an AC power supply terminal (not shown) into a predetermined DC voltage required for the operation of the air conditioner, and the driving operation unit 102 is an air conditioner desired by the user. The operation mode (automatic, cooling, dehumidification, blowing, heating, strong) and the start / stop of operation, the set temperature, the set air volume of the discharged air, and the set wind direction are inputted to the controller 104.
    In addition, the control unit 104 receives the DC voltage output from the power supply unit 100 to initialize the air conditioner, as well as the operation mode selection signal and the operation start / operation stop signal input by the operation operation unit 102. According to the control of the overall operation of the air conditioner.
    In addition, the indoor temperature detection unit 106 detects the temperature of the indoor air sucked through the inlet to control the indoor temperature to the set temperature input by the user by the operation control unit 102 to perform the operation of the air conditioner. It is input to the control unit 104, the indoor heat exchanger temperature detection unit 108 detects the pipe temperature of the indoor heat exchanger that is changed during the operation of the air conditioner, that is, the refrigerant temperature passing through the indoor heat exchanger It is to be input to the control unit 104, the outdoor temperature detection unit 110 is to detect the temperature of the outdoor air to convert during the operation of the air conditioner is input to the control unit 104.
    In addition, the wind direction control vane driving unit 120 receives the control signal output from the control unit 104 and adjusts the angle of the wind direction control wing 132 to adjust the direction of the discharge air up and down and left and right, the compressor driving unit Reference numeral 122 is for receiving the control signal output from the control unit 104 to drive the compressor motor of the twin compressor 134.
    In addition, the driven shaft driver 70 receives the control signal output from the controller 104 so that the driven shaft 80 of the twin compressor 134 interlocks with the rotation shaft 32 of the compressor motor 80. Is connected to or separated from the rotary shaft 32.
    The outdoor fan motor driving unit 124 is output from the control unit 104 according to the difference between the set temperature input by the user by the driving operation unit 102 and the indoor temperature detected by the room temperature sensing unit 106. The outdoor fan motor 136 is driven to blow the air heat-exchanged in the outdoor heat exchanger to the outside in response to the control signal.
    The indoor fan motor driving unit 126 receives a control signal output from the control unit 104 to blow the heat-exchanged air (cold air, warm air) into the room according to the set air volume input by the driving control unit 102. The rotational speed of the fan motor 138 is controlled and driven.
    In addition, the four-way valve driver 128 receives the control signal output from the control unit 104 to convert the flow of the refrigerant in accordance with the operating conditions (cooling or heating) input by the operation operation unit 102 four-way valve An operation mode (automatic, cooling, dehumidifying, blowing, heating) input by the driving control unit 102 is controlled by the driving unit 102 under the control of the control unit 104. And set temperature and room temperature.
    The operation and effects of the twin compressor control method of the air conditioner according to the present invention performed in the operation control apparatus of the air conditioner configured as described above are as follows.
    6 is a flow chart of a twin compressor control method of an air conditioner according to the present invention, in which S denotes a step.
    In step S1, when power is supplied to the air conditioner, the controller 104 initializes the air conditioner and then proceeds to step S2. That is, when power is applied to the air conditioner, the power supply unit 100 converts a commercial AC voltage supplied from an AC power supply terminal (not shown) into a predetermined DC voltage required for driving the air conditioner to each driving circuit and the controller 104. When the DC voltage output from the power supply unit 100 is applied to the control unit 104 in this way, the control unit 104 initializes the air conditioner.
    Subsequently, in step S2, the control unit 104 determines whether the operation start signal is input from the operation control unit 102, and when the operation start signal is not input, maintains the air conditioner in the operation standby state, and operates the operation operation unit 102. If the operation start signal is inputted from), the process proceeds to step S3.
    Subsequently, in step S3, the user operates the driving operation unit 102 to input operation conditions such as an operation mode and a set temperature of the air conditioner to the controller 104, and then proceeds to step S4.
    Subsequently, in step S4, the control unit 104 determines whether the driving mode input from the driving operation unit 102 is the strong driving mode, and proceeds to step S5 if the driving mode is strong. Proceed to step S6.
    Subsequently, in step S5, the controller 104 controls the driven shaft driver 70 to connect the driven shaft 80 to the rotary shaft 32 to increase the refrigerant compression capability of the twin compressor 134, and then, the step ( Proceed to S4).
    That is, in step S5, the controller 104 outputs a control signal for connecting the driven shaft 80 to the rotary shaft 32 to the driven shaft driver 70, and the driven shaft driver 70 controls the controller. Receiving a control signal from the 104, " off " the switch SW cuts off the power supplied from the power supply 76 to the electromagnet 74, and accordingly the driven shaft ( 80 is raised so that the driven shaft 80 is connected to the rotary shaft (32).
    As described above, when the driven motor 80 is driven at a constant speed in a state in which the driven shaft 80 is connected to the rotating shaft 32, the rotating shaft 32 and the driven shaft 80 rotate simultaneously.
    Therefore, the suction space and the compression space are partitioned inside the upper cylinder 41 by the eccentric rotation of the upper roller 42 which rotates in association with the rotary shaft 32, and is linked to the driven shaft 80. By the eccentric rotation of the rotating lower roller 52, the suction space and the compression space are defined in the lower cylinder 51.
    In addition, the gas refrigerant is sucked from the accumulator 60 through the upper suction pipe 62 and the lower suction pipe 64 by the suction force acting while the upper roller 42 and the lower roller 52 rotate in a predetermined direction. The refrigerant compressed to high temperature and high pressure is discharged to the outside of the compressor through the discharge port 35.
    On the other hand, in step S6, the indoor temperature detecting unit 106 detects the room temperature and inputs it to the control unit 104, and then proceeds to step S7. In step S7, the control unit 104 controls the indoor space. If it is determined that the indoor temperature input from the temperature sensing unit 106 is equal to or higher than the reference temperature, the step S5 is performed if the indoor temperature is higher than the reference temperature. If the indoor temperature is lower than the reference temperature, the operation S8 is performed.
    At this time, the reference temperature is determined by adding a predetermined temperature to the set temperature inputted by the user to the control unit 104 by operating the driving operation unit 102.
    Subsequently, in step S8, the control unit 104 controls the driven shaft driving unit 70 to separate the driven shaft 80 from the rotating shaft 32 to lower the refrigerant compression capacity of the twin compressor 134, and then, the step ( Proceed to S4).
    That is, in step S8, the control unit 104 outputs a control signal for separating the driven shaft 80 from the rotation shaft 32 to the driven shaft driver 70, and the driven shaft driver 70 controls the controller ( Receiving a control signal from 104, " on " the switch SW supplies power from the power supply 76 to the electromagnet 74, thereby causing the electromagnet 74 to generate magnetic force.
    Since the magnetic force generated in the electromagnet 74 is greater than the elastic force of the compression spring 72 as described above, the driven shaft 80 descends while compressing the compression spring 72 and is rotated from the rotating shaft 32 of the compressor motor. Are separated.
    As described above, if the driven shaft 80 is driven from the rotating shaft 32 and the compressor motor is driven at a constant speed, only the rotating shaft 32 rotates and the driven shaft 80 does not rotate.
    Therefore, the suction space and the compression space are defined in the interior of the upper cylinder 41 by the eccentric rotation of the upper roller 42 which rotates in association with the rotation shaft 32, the upper roller 42 in a predetermined direction The refrigerant is sucked from the accumulator 60 through the upper suction pipe 62 by the suction force acting while rotating, and the refrigerant compressed to high temperature and high pressure is discharged to the outside of the case 30 through the discharge port 35. will be.
    That is, in the twin compressor control method of the air conditioner according to the present invention, when the strong operation mode or the room temperature is higher than the reference temperature, the control unit 104 drives the control signal to increase the refrigerant compression capability of the twin compressor 104 driven shaft drive unit. Output to 70, the driven shaft drive unit 70 receives the control signal from the control unit 104 "turns off" the switch (SW).
    Therefore, since the driven shaft 80 is connected to the rotary shaft 32 and the upper compression unit 40 and the lower compression unit 50 simultaneously perform refrigerant compression, the refrigerant compression capacity of the twin compressor 134 is increased in the upper compression unit ( Only 40) is higher than when the refrigerant is compressed.
    In addition, when the indoor temperature is less than the reference temperature in the non-strong operation mode, the controller 104 outputs a control signal to the driven shaft driver 70 to reduce the refrigerant compression capacity of the twin compressor 104, and the driven shaft driver 70 receives a control signal from the controller 104 and turns on the switch SW.
    Therefore, since the driven shaft 80 is separated from the rotating shaft 32 and only the upper compression unit 40 performs refrigerant compression, the refrigerant compression capability of the twin compressor 134 is higher than that of the upper compression unit 40 and the lower compression unit 50. ) Is not only lower than when the refrigerant is compressed at the same time, but also power consumption is reduced.
    As described above, according to the present invention, the refrigerant compression capacity is increased by operating the upper and lower compression units of the twin compressor at the same time or by operating only the upper compression unit according to the difference between the set temperature and the room temperature. Not only does not use a separate inverter circuit for varying the refrigerant compression capacity can be effectively changed, but also has the effect of reducing the power consumption.
    权利要求:
    Claims (4)
    [1" claim-type="Currently amended] In a twin compressor of an air conditioner comprising an upper compression unit receiving power from a rotating shaft of a compressor motor to perform refrigerant compression and a lower compression unit receiving power from a driven shaft to perform refrigerant compression,
    An operation condition input step of inputting an operation mode and a set temperature of the air conditioner;
    Operation mode determination step of determining whether the operation mode of the air conditioner is the strong operation mode,
    If the operation mode of the air conditioner in the operation mode determination step is a strong operation mode, connecting the driven shaft to the rotary shaft of the compressor motor and then the driven shaft connection step of proceeding the operation mode determination step,
    In the operation mode determination step, if the operation mode of the air conditioner is not the strong operation mode, comparing the indoor temperature and the reference temperature, if the indoor temperature is higher than the reference temperature, the indoor temperature comparison step of proceeding with the driven shaft connection step;
    And a driven shaft separating step of separating the driven shaft from the rotating shaft of the compressor motor if the indoor temperature is less than the reference temperature in the comparing room temperature step and then performing the operation mode discrimination step.
    [2" claim-type="Currently amended] The method of claim 1,
    The driven shaft connecting step, the twin compressor control method of the air conditioner, characterized in that the driven shaft is raised by the elastic force of the compression spring to connect the driven shaft to the rotating shaft.
    [3" claim-type="Currently amended] The method of claim 1,
    The driven shaft separation step, the power supply to the electromagnet to control the twin compressor of the air conditioner, characterized in that the driven shaft is forcibly lowered by the magnetic force generated by the electromagnet to separate the driven shaft from the rotating shaft.
    [4" claim-type="Currently amended] The method of claim 1,
    In the indoor temperature comparison step, the reference temperature is determined by adding a predetermined temperature to the set temperature control method of the twin compressor of the air conditioner.
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    同族专利:
    公开号 | 公开日
    KR100275556B1|2000-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1998-03-09|Application filed by 윤종용, 삼성전자 주식회사
    1998-03-09|Priority to KR1019980007766A
    1998-03-09|Priority claimed from KR1019980007766A
    1999-10-05|Publication of KR19990074288A
    2000-12-15|Publication of KR100275556B1
    2001-02-01|Application granted
    2001-02-01|Publication of KR100279653B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019980007766A|KR100279653B1|1998-03-09|Manufacturing method of filter element for oil filtration|
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