KR100300171B1 - Temperature control apparatus for automobile air conditioner and temperature control performance test apparatus - Google Patents

Abstract

PURPOSE: A temperature control apparatus and temperature control performance test apparatus is provided to achieve an in-advance prevention against erroneous operation of air conditioner cause due to the noise generated by turning on/off the grounding of temperature control amplifier. CONSTITUTION: An apparatus comprises a first switching unit(38) which switches on/off when a blower switch(58) is turned on, so as to supply power from an external source; a temperature control amplifier(50) for outputting a control signal for driving a compressor(56) in accordance with the signal output from a temperature sensor(48); a second switching unit(40) which switches by the power supplied through the first switching unit, and outputs a switching signal according to the on operation of the blower switch; an electronic control unit(52) for driving the compressor by the control signal output from the temperature control amplifier and switching signal output from the second switching unit; a third switching unit(42) which switches by the control signal output from the temperature control amplifier and supplies a predetermined power for displaying operation of the compressor; and a display unit for displaying operation of the air conditioner by the power supplied through the first switching unit, and displaying operation of the compressor by the power supplied through the third switching unit.

Description

Temperature control device for auto air conditioner and its inspection device

The present invention relates to a car air conditioner, and more particularly, the transistor is switched on or off in accordance with the on or off operation of the blower switch, the temperature control amplifier is driven or stopped accordingly, the car air conditioner In addition to controlling the temperature of the compressor, it can display the operation of the compressor and can prevent malfunctions caused by noise and failure of other components due to the failure of the compressor. The present invention relates to a temperature control device for an automobile air conditioner and an inspection device for inspecting the same.

In general, the temperature control apparatus of a conventional automotive air conditioner, as shown in Figure 1, the power supply unit 1, the connector 2, the air conditioner switch 8, the display unit 10, the temperature sensor ( 12), a temperature control amplifier 14, an electronic control unit 16, a compressor relay 18, a compressor 20, a blower switch 22, a blower driving unit 24, and a blower 26.

In FIG. 1, the power supply unit 1 supplies predetermined power required for driving the air conditioner, and the connector 2 electrically connects a circuit to the power supply unit 1, the temperature control amplifier 14, and the electronic control. The unit 16 and the 1st connector 4 with which the blower switch 22 etc. were connected, and the 2nd connector 6 with which the air conditioner switch 8, the display part 10, etc. were connected are comprised.

In addition, the air conditioner switch 8 is a switch for turning on or off the operation of the air conditioner by being turned on or off by the user, and the display unit 10 indicates whether the operation of the air conditioner is turned on or off. R1 and the lamp 11.

And, the temperature sensor 12 is composed of a thermistor and the like to detect the temperature of the evaporator (not shown) and output a detection signal accordingly, the temperature control amplifier 14 according to the detection signal from the temperature sensor 12, the compressor ( 20) outputs a low or high level signal for driving or stopping.

The electronic control unit 16 also has a low or high level signal for turning the compressor relay 18 on or off in accordance with a low or high level signal of the temperature control amplifier 14 and an on or off operation of the air conditioner switch 8. Outputs a control signal, and the compressor relay 18 is turned on or off in accordance with a low or high level control signal of the electronic control unit 16.

In addition, the compressor 20 is driven by the ON operation of the compressor relay 18 to convert the refrigerant into high temperature and high pressure, and the blower switch 22 is turned on or off by the user so that the air volume of the blower 26 (for example, For example, it is a switch for controlling 1,2,3,4 steps).

In addition, the blower actuator 24 drives or stops the blower 26 according to the on or off operation of the blower switch 22, and the blower 26 is driven by the blower actuator 24 to blow air.

In the conventional temperature control apparatus for a vehicle air conditioner configured as described above, when the user turns on the air conditioner switch 8 while the ignition key is turned on by the user, the predetermined power from the power supply unit 1 is displayed. 10, while a predetermined power supply is supplied to the temperature control amplifier 14.

Next, when the user turns on the blower switch 22 in one or more stages, the temperature control amplifier 14 is driven by being grounded to drive the compressor 20 in accordance with a detection signal input from the temperature sensor 12. While outputting a low or high level signal for stopping, the lamp 11 of the display unit 10 lights up to inform the user of the operation of the air conditioner.

Then, the electronic control unit 16 is turned on to inform the user of the operation of the air conditioner. A low or high level control signal for turning on or off the compressor relay 18 is output to the compressor relay 18 according to the bell signal, and the compressor relay 18 is controlled by the low or high level control signal. On or off is operated to drive or stop the compressor (20).

Next, the blower driving unit 24 drives the blower 26 in accordance with the amount of air blown by the blower switch 22, and the blower 26 is driven by the blower driving unit 24 to the compressor 20. As the air is driven, the cold air heat exchanged in the evaporator is blown into the interior of the vehicle.

However, the conventional temperature control apparatus for a vehicle air conditioner is to turn on or off the ground of the temperature control amplifier to drive or stop the temperature control amplifier, accordingly the temperature control amplifier is an automotive air conditioner By controlling the temperature of the, there is a problem that the air conditioner malfunctions due to noise generated by turning on or off the ground of the temperature control amplifier.

In addition, since there is no display unit indicating the operation of the compressor, it is not known whether the compressor is driven, there is a problem in that failure of other components due to the failure of the compressor can not be prevented in advance.

In addition, as the number of parts increases, not only the manufacturing cost increases but also the assembly productivity decreases.

In addition, since only the constant temperature water tank can be inspected during the performance test of the temperature control amplifier, an environmental problem occurs due to the bath liquid, the inspection time is long, and the inspection equipment is expensive, so that the entire quantity cannot be actually inspected.

Accordingly, the present invention has been made to solve the above problems, the transistor is switched to the on or off state in accordance with the on or off operation of the blower switch, the temperature control amplifier is driven or stopped accordingly to the automotive air In addition to controlling the temperature of the conditioner, it is possible to display the driving of the compressor and to prevent the malfunction caused by the noise in advance, as well as to prevent the failure of other components due to the failure of the compressor. The object is to provide a temperature control device for an air conditioner.

In addition, by providing an integrated circuit of the temperature control amplifier to reduce the manufacturing cost as the number of parts is reduced, as well as to improve the assembly productivity, to provide a temperature control device for automotive air conditioners that can be easily tested performance Has a different purpose.

In addition, to provide a temperature control inspection device for an automotive air conditioner that can easily test the temperature control performance of the integrated circuit temperature control amplifier of the temperature control device of the automotive air conditioner by connecting a connector. There is a purpose.

Temperature control device for an automotive air conditioner according to the present invention for achieving the above object is to operate the compressor and the blower in accordance with the detection signal from the temperature sensor when the air conditioner switch and the blower switch by the user to operate the air in the vehicle An air conditioner for a vehicle, wherein the blower switch is switched on when the blower switch is turned on to supply a predetermined power from the outside, and is driven by being supplied with a predetermined power through the first switching unit. A temperature control amplifier for outputting a control signal for driving the compressor according to a detection signal from the second switch, and a second switching for outputting a switching signal according to the on operation of the blower switch by switching the power supply by a predetermined power supply through the first switching unit; The control signal of the temperature control amplifier and the switching signal of the second switching unit An electronic control unit for driving the compressor, a third switching unit supplying a predetermined power to display the driving of the compressor by switching by a control signal of the temperature control amplifier, and receiving a predetermined power through the first switching unit. And a display unit for displaying an operation of the air conditioner and receiving a predetermined power through the third switching unit to display the driving of the compressor.

In addition, the temperature control inspection apparatus for an automotive air conditioner according to the present invention for achieving the above another object is a device for inspecting the temperature control performance of the control unit of the temperature control apparatus of the automotive air conditioner connected to the second connector. A power supply unit for supplying predetermined power to the control unit, a variable resistor unit for outputting a variable resistance value to the control unit, and supplying predetermined power from the power supply unit by the switching unit; A signal sensing unit which senses a control signal output from the controller according to a resistance value inputted from the variable resistor unit to determine the temperature control performance of the controller, the power supply unit, the variable resistor unit, And a third connector fastened to the second connector for connecting the signal sensing unit and the switch unit. It features.

1 is a schematic configuration diagram showing a temperature control apparatus for a vehicle air conditioner according to the related art.

2 is a schematic configuration diagram showing a temperature control apparatus for a vehicle air conditioner according to a first embodiment of the present invention.

3 is a schematic configuration diagram showing a temperature control apparatus for a vehicle air conditioner according to a second embodiment of the present invention.

Figure 4 is a schematic configuration diagram showing a temperature control device for a car air conditioner according to the present invention.

* Explanation of symbols for main parts of the drawings

30, 70: power supply part 32, 72: connector

36, 76: air conditioner switch 38: first switching unit

40: second switching unit 42: third switching unit

44, 80: display unit 50: temperature control amplifier

58, 87: blower switch 77: stabilization circuit

78: control unit 79: switching unit

90: power supply 91: variable resistor

92: signal detection unit 93: switch unit

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the temperature control device and the inspection device of the air conditioner for a vehicle according to the present invention.

In Fig. 2 to Fig. 4, the same components as those in the prior art are given the same names, and detailed description thereof will be omitted.

FIG. 2 is a schematic configuration diagram showing a temperature control apparatus for an automotive air conditioner according to a first embodiment of the present invention. As can be seen from the drawings, the air for automobiles according to the first embodiment of the present invention is shown. The temperature controller of the conditioner includes a power supply unit 30 and a connector 32. Air conditioner switch 936, first switching unit 38, second switching unit 40, third switching unit 42, display unit 44, temperature sensor 48, temperature control amplifier 50, electronic control unit 52, a compressor relay 54, a compressor 56, a blower switch 58, a blowing mechanism drive unit 60, and a blower 62. As shown in FIG.

In FIG. 2, the connector 32 electrically connects a circuit, and includes a first connector to which the power supply unit 30, the temperature sensor 48, the electronic control unit 52, the blower switch 58, and the like are connected. 33, the second connector 34 to which the air conditioner switch 36, the temperature control amplifier 50, the first switching unit 38, the second switching unit 40, and the third switching unit 42 are connected. )

In addition, the first switching unit 38 is switched on or off according to the on or off operation of the blower switch 58 to supply a predetermined power supply from the power supply unit 30, thereby providing a transistor TR1 and a resistor ( R2 and R3, and the second switching unit 40 is switched on or off according to the switching operation of the first switching unit 38 to output a switching signal according to the on operation of the blower switch 58. In this case, the transistor TR2 includes a resistor R4 and a diode D1.

Here, the diode D1 is for preventing the transistor TR2 from being damaged by an abnormal voltage caused by a short circuit of the electronic control unit 52, and the diode D2 is a display part caught by the third switching unit 42. This is to prevent the power supply via the 44 from being high level to the electronic control unit 52 through the resistors R5 and R6.

In addition, the third switching unit 42 switches the ON or OFF state by a low or high level signal of the temperature control amplifier 50 to supply a predetermined power to display the driving of the compressor 56. It consists of TR3 and resistors R5 and R6.

In addition, the display unit 44 indicates whether the operation of the air conditioner is on or off and whether the compressor 56 is driven or stopped. The display unit 44 supplies a predetermined power source through the first switching unit 38 during operation of the air conditioner. The first lamp 945, which is supplied and lit in green, and the second lamp 46 and resistors R7 and R8, which are lit in red when a predetermined power is supplied through the third switching unit 42 when the compressor is driven. The user is informed of the operation of the air conditioner in green, and the operation of the compressor 56 in the orange, which is a combination color of green and red.

Then, the electronic control unit 52 is a low or high level for turning on or off the compressor relay 54 according to the low or high level signal of the temperature control amplifier 50 and the switching signal of the second switching unit 40. Outputs a control signal.

On the other hand, Figure 3 is a schematic configuration diagram showing a temperature control apparatus for a vehicle air conditioner according to a second embodiment of the present invention, as can be seen with reference to the same figure, the vehicle according to a second embodiment of the present invention Temperature control device of the air conditioner for the power supply unit 70, connector 72, air conditioner switch 76, stabilization circuit 77, control unit 78, switching unit 79, display unit 80, temperature sensor ( 83), an electronic control unit 84, a compressor relay 85, a compressor 86, a blower switch 87, a blowing mechanism drive unit 88, and a blower 89.

In FIG. 3, the connector 72 electrically connects a circuit to which the first connector (not shown) connected to the power supply unit 70, the temperature sensor 83, the electronic control unit 84, the blower driving unit 88, or the like is connected. 73 and the second connector 74 to which the input and output terminals of the air conditioner switch 76 and the control unit 78 are connected, and the stabilization circuit 77 stabilizes the predetermined power supplied from the power supply unit 70. Circuit.

In addition, the controller 78 outputs a display control signal of high or low level according to the on or off operation of the blower switch 87 to turn on or turn off the first lamp 81 of the display unit 80, A low or high level drive control signal for driving or stopping the compressor 86 is output to the electronic control unit 84 in accordance with a detection signal input from the 83, and a high or low level display control signal is output. The second lamp 82 of the display unit 80 is turned on or off.

Then, the switching unit 79 is switched on or off by the high or low level control signal of the control unit 78 to supply a predetermined power so that the operation of the air conditioner and the driving of the compressor 86 are displayed. And transistors TR4 and TR5 and resistors R9 and R10. The display unit 80 indicates whether the operation of the air conditioner is on or off and whether the compressor 86 is driven or stopped. The first lamp 81 turns green when the conditioner is operated, the second lamp 82 turns red when the compressor is driven, and the resistors R11 and R12.

On the other hand, Figure 4 is a schematic configuration diagram showing a temperature control inspection apparatus for a car air conditioner according to the present invention, as can be seen with reference to the same figure, the temperature control test for a car air conditioner according to the present invention The apparatus consists of a power supply unit 90, a variable resistor unit 91, a signal sensing unit 92, a switch unit 93, and a third connector 94.

In FIG. 4, the variable resistor 91 replaces a thermistor or the like which is a temperature sensor. The variable resistor 91 includes a variable resistor and outputs a variable resistance value, and the signal detector 92 is input from the variable resistor 91. The temperature control performance of the controller 78 is determined by detecting a drive control signal for driving the compressor output from the controller 78 according to the variable resistance value.

In addition, the switch 93 replaces the blower switch, and is a switch for driving or stopping the controller 78 by being turned on or off by a user, and the third connector 94 electrically connecting a circuit. The power supply unit 90, the variable resistor unit 91, the signal detection unit 92, the switch unit 93, and the like are connected.

Hereinafter, a temperature control device and an inspection device for an air conditioner for a vehicle according to the present invention configured as described above will be described in detail with reference to FIGS. 2 to 4.

First, the temperature control apparatus for a vehicle air conditioner according to the first embodiment of the present invention is a predetermined value from the power supply unit 30 when the user turns on the air conditioner switch 36 while the ignition key is turned on by the user. Power is supplied to the transistor TR1 of the first switching unit 38.

Next, when the user turns on the blower switch 58, the transistor TR1 of the first switching unit 38 is switched on so that the temperature control amplifier 50, the display unit 44, and the second switching are switched on. The predetermined power is supplied to the unit 40.

Then, the temperature control amplifier 50 is driven to transmit a low or high level signal to the electronic control unit 52 for driving or stopping the compressor 56 according to the detection signal input from the temperature sensor 48. Output, the first lamp 45 of the display unit 44 lights up in green to inform the user of the operation of the air conditioner, and the transistor TR2 of the second switching unit 40 is switched on to low level. Outputs a switching signal to the electronic control unit 52.

Next, the electronic control unit 52 receives a low or high level control signal from the temperature control amplifier 50 and a low level switching signal from the second switching unit 40 to receive the compressor relay 54. Outputs a low or high level control signal to the compressor relay 54 so that the transistor TR3 of the third switching unit 42 is low or high level from the temperature control amplifier 50. Switching on or off by the signal of the power supply or cut off the predetermined power.

Then, the compressor relay 54 is turned on or off by the low or high level control signal to drive or stop the compressor 56, and the transistor TR3 of the third switching unit 42 The second lamp 46 of the display unit 44 turns on or off in red when the predetermined power is supplied or cut off to inform the user that the compressor 56 is driven by the same color as the green color of the first lamp 45. .

Next, the blower drive unit 60 drives the blower 62 according to the amount of air blown by the blower switch 58, and the blower 62 is driven by the blower drive unit 60 so that the compressor 56 is driven. As it is driven, the cold heat exchanged in the evaporator is blown into the interior of the vehicle.

On the other hand, the temperature controller of the automotive air conditioner according to the second embodiment of the present invention, when the user operates the air conditioner switch 76 in the state that the ignition key is turned on by the user, the predetermined from the power supply unit 70 Power is stably supplied to the controller 78 by the stabilization circuit 77.

Next, when the user turns on the blower switch 87 in one or more stages, the control unit 78 causes the low or high level to drive or stop the compressor 86 in accordance with the detection signal input from the temperature sensor 83. Outputs a drive control signal to the electronic control unit 84, and outputs a high level display control signal to the transistor TR4 of the switching unit 79.

Next, the electronic control unit 84 receives a low or high level drive control signal from the control unit 78 and compresses a low or high level control signal for turning on or off the compressor relay 85. The first lamp 81 of the display unit 80 lights green to output to the relay 85 and the transistor TR4 of the switching unit 79 is switched on to supply a predetermined power. Inform the operation of the air conditioner.

Next, the compressor relay 85 is turned on or off by the low or high level control signal to drive or stop the compressor 86, and the controller 78 switches the high or low level display control signal. The transistor 79 is output to the transistor TR5.

Then, as the transistor TR5 of the switching unit 79 is switched on or off, predetermined power is supplied or cut off so that the second lamp 82 of the display unit 80 is turned on or off in red. The user is informed of the driving of the compressor 86 in the same color as that of the first lamp 81 with the green color.

Next, the blower driving unit 88 drives the blower 89 according to the amount of air in which the blower switch 87 is turned on, and the blower 89 is driven by the blower driving unit 88 to the compressor 86. As the air is driven, the cold air heat exchanged in the evaporator is blown into the interior of the vehicle.

On the other hand, the temperature control inspection device of the automotive air conditioner according to the present invention is a user of the air conditioner for the vehicle to the second connector 74 of the temperature control device to the automotive air conditioner according to the second embodiment of the present invention When the air conditioner switch 76 is turned on after the third connector 94 of the temperature control inspection apparatus is connected, predetermined power from the power supply unit 90 is supplied to the control unit 78.

Next, when the user turns on the switch unit 93, the control unit 78 is driven by receiving a predetermined power from the power supply unit 90 so as to be low or high depending on the variable resistance value from the variable resistor unit 91. Level drive control signal to the signal detection unit 92, the signal detection unit 92 receives the low or high level drive control signal control unit 78 of the temperature control device of the automotive air conditioner Determine and inspect the temperature control performance of

As described above, the temperature control device for an automotive air conditioner according to the present invention, the transistor is switched on or off in accordance with the on or off operation of the blower switch by the user, the temperature control amplifier is driven or driven accordingly By controlling the temperature of the automotive air conditioner to stop and displaying the driving of the compressor, it is possible to prevent malfunction due to noise caused by turning on or off the ground of the temperature control amplifier. There is an effect that can prevent the failure of other components due to the failure in advance.

In addition, since the temperature control amplifier is integrated into the circuit, the manufacturing cost is reduced and the assembly productivity is improved as the number of parts is reduced. In addition, the performance test is simplified.

In addition, the temperature control inspection device for an automotive air conditioner according to the present invention can easily inspect the temperature control performance of the temperature control device of the automotive air conditioner through a connector to which a control unit integrated with a temperature control amplifier is connected. It can be effective.

Claims (4)

When the air conditioner switch and the blower switch are turned on by the user, the air conditioner for the automobile is driven in accordance with the detection signal from the temperature sensor to adjust the air in the vehicle, and the switching operation is performed when the blower switch is turned on. A first switching unit for supplying predetermined power from the outside; A temperature control amplifier driven by receiving a predetermined power through the first switching unit and outputting a control signal for driving the compressor according to a detection signal from the temperature sensor; A second switching unit which receives a predetermined power supply through the first switching unit and performs a switching operation to output a switching signal according to an on operation of the blower switch; An electronic control unit which receives a control signal of the temperature control amplifier and a switching signal of the second switching unit and drives the compressor; A third switching unit which switches by a control signal of the temperature control amplifier and supplies a predetermined power to display driving of the compressor; An air conditioner for automobiles, comprising: a display unit configured to display an operation of an air conditioner by receiving predetermined power through the first switching unit, and to display driving of the compressor by receiving predetermined power through the third switching unit; Temperature control device. The display apparatus of claim 1, wherein the display unit comprises: a first lamp which is lit green when a predetermined power is supplied through the first switching unit; A temperature control device for an air conditioner for an automobile, characterized in that the second lamp is turned on by receiving a predetermined power supply through the third switching unit. When the air conditioner switch and the blower water position are turned on by the user, the air conditioner for the automobile which drives the compressor and the blower according to the detection signal from the temperature sensor to stabilize the air inside the vehicle, which stabilizes a predetermined power supplied from the outside. Stabilization circuit; Drives a compressor according to a sensing signal input from the temperature sensor while outputting a control signal for displaying the operation of the air conditioner according to the on operation of the blower switch, driven by a predetermined power supplied through the stabilization circuit. A control unit for outputting a control signal for outputting a control signal for displaying the driving of the compressor; An electronic control unit which receives the control signal of the controller and drives the compressor; A switching unit which supplies a predetermined power to display the operation of the air conditioner and the operation of the compressor by switching by the control signal of the control unit; A temperature control device for an air conditioner for a vehicle, characterized in that the display unit for receiving a predetermined power supplied through the switching unit for displaying the operation of the air conditioner and the operation of the compressor, A second connector to which an air conditioner switch and a control unit are connected, and a third connector fastened to the second connector; The third connector includes a switch unit for driving the control unit, a power supply unit for supplying predetermined power to the control unit, a variable resistor unit for outputting a variable resistance value to the control unit, and the switch unit from the power supply unit. A vehicle air conditioner, which is driven by receiving a predetermined power, is connected to a signal sensing unit which senses a control signal output from the controller according to a resistance value input from the variable resistor unit and determines a temperature control performance of the controller. Temperature control inspection device.

Images