CN207963065U - Detection of air-conditioning device and frequency-conversion air-conditioning system - Google Patents
Detection of air-conditioning device and frequency-conversion air-conditioning system Download PDFInfo
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- CN207963065U CN207963065U CN201820106057.3U CN201820106057U CN207963065U CN 207963065 U CN207963065 U CN 207963065U CN 201820106057 U CN201820106057 U CN 201820106057U CN 207963065 U CN207963065 U CN 207963065U
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Abstract
A kind of detection of air-conditioning device of the utility model offer and frequency-conversion air-conditioning system, the detection of air-conditioning device includes test module and power module, it is connected with voltage sensor between radiator in test module and air conditioner electrical box, test module includes controller, relay circuit, display circuit and sound light alarming circuit, controller respectively with display circuit, sound light alarming circuit is electrically connected, zero firewire communicating circuit is connected between controller and outer machine controller, controller detects the voltage signal of voltage sensor, controller exports sound and light alarm signal to sound light alarming circuit, relay circuit receives the switch control signal of controller output.The interior machine of the frequency-conversion air-conditioning system includes above-mentioned detection of air-conditioning device.The detection of air-conditioning device of the utility model can not only detect the abnormal conditions of insulating heat-conductive pad but also can carry out production test to outdoor machine of air-conditioner automatically.
Description
Technical field
The utility model is related to convertible frequency air-conditioner technical fields, more particularly, to a kind of frequency-conversion air-conditioning system and are applied to be somebody's turn to do
The detection of air-conditioning device of frequency-conversion air-conditioning system.
Background technology
Normally, in convertible frequency air-conditioner all include pfc circuit, the active pfc circuit being widely used at present usually by inductance,
The electronic components such as IGBT circuits, fast recovery diode form, and are carried out to the break-make of IGBT circuits by special control chip
Control, to realize adjustment and the boost function to current waveform.
Since IGBT is in the switching process of high speed, a large amount of heat is will produce, in order to preferably radiate, IGBT is usually selected
With iron encapsulation technique, the metal substrate of iron encapsulation technique is that the drain electrode with IGBT communicates, and radiator generally is intended to ground connection, therefore
It needs to need to increase drain electrode and cooling fin that an insulating heat-conductive pad is used to be isolated IGBT between IGBT and radiator.
After completing radiator and being fixedly mounted, insulating heat-conductive pad is completely hidden inside radiator and IGBT, then in air-conditioning
When electrical appliance kit is tested, if insulating heat-conductive gets existing abnormal conditions discard, quality inspection personnel is can not be exhausted to this by the method for range estimation
Edge gasket is tested.In addition, when insulating heat-conductive pad exception, other than air-conditioning may not work normally, it is also possible to
Due to the bad generation for leading to the electrical safety accidents such as electric shock, electric leakage of insulating.
Invention content
The main purpose of the utility model is to provide a kind of abnormal conditions that can not only detect insulating heat-conductive pad automatically but also can
To carry out the detection of air-conditioning device of production test to outdoor machine of air-conditioner.
The another object of the utility model is to provide a kind of detection of air-conditioning device detection insulation by air-conditioning internal machine and leads
The abnormal conditions of heat pad and the frequency-conversion air-conditioning system that production test is carried out to outdoor machine of air-conditioner.
For the main purpose for realizing above-mentioned, detection of air-conditioning device provided by the utility model, including test module and electricity
Source module, power module provide power supply for test module, and electricity is connected between the radiator in test module and air conditioner electrical box
Pressure sensor；Test module includes controller, relay circuit, display circuit and sound light alarming circuit, controller respectively with
Display circuit, sound light alarming circuit electrical connection, are connected with zero firewire communicating circuit between controller and outer machine controller；Controller
The voltage signal of voltage sensor is detected, and controller generates sound and light alarm signal according to voltage signal, controller exports acousto-optic
Alarm signal is to sound light alarming circuit；Relay circuit receives the switch control signal of controller output, and relay circuit includes
Relay, the first triode and the second triode, the output end of controller are electrically connected with the normally opened contact of relay, relay
First coil end be electrically connected with the collector of the first triode, the collector electricity of the base stage of the first triode and the second triode
Connection, the emitter ground connection of the second triode.
Further embodiment is that switching power circuit, switching power circuit are connected between test module and power module
Including rectification circuit, switching power source chip and the first transformer, rectification circuit receives the current signal of power module output, whole
Current circuit exports the current signal after rectification to the first transformer, and the first transformer is electrically connected with switching power source chip.
One Preferable scheme is that, rectification circuit include the second transformer, rectifier and filter circuit, the second transformer
The current signal of power module output is received, the second transformer exports the second current signal to rectifier, rectifier and filtered electrical
Road is electrically connected.
Further embodiment is that zero firewire communicating circuit includes third transistor, the first photoelectrical coupler, the 4th triode
And second photoelectrical coupler, the collector of third transistor are electrically connected with the input terminal of the first photoelectrical coupler, the first photoelectricity
The output end of coupler is electrically connected with the input terminal of the second photoelectrical coupler, and the output end of the second photoelectrical coupler is respectively with the 4th
The base stage and collector of triode are electrically connected.
One Preferable scheme is that, test module further includes key circuit, and key circuit is electrically connected with the controller.
From said program as it can be seen that sending related operating instruction to tested outdoor machine of air-conditioner by controller, it is tested outdoor machine of air-conditioner
It is run according to the instruction works, and feeds back every operating parameter to controller, for the automatic detection in outdoor unit production process,
It can ensure the reliable production of outdoor unit, can not only utilize existing resource, outdoor unit detection efficiency can also be improved.
Further, since can generate a larger induced voltage in face on a heat sink when insulating heat-conductive pad exception, therefore, this
The detection of air-conditioning device of utility model is detected the abnormal conditions of insulating heat-conductive pad by voltage sensor, different when detecting
When reason condition, producers can be reminded to handle by way of sound-light alarm, avoid extremely causing due to insulating heat-conductive pad
Disorderly closedown and the electrical safety event that is likely to occur.
For realize above-mentioned another object, frequency-conversion air-conditioning system provided by the utility model, including air conditioner electrical box and
Outdoor machine of air-conditioner is connected with detection of air-conditioning device, radiator is provided in air conditioner electrical box between air conditioner electrical box and outdoor machine of air-conditioner,
Detection of air-conditioning device includes test module and power module, and power module provides power supply for test module, test module with dissipate
It is connected with voltage sensor between hot device；Test module includes controller, relay circuit, display circuit and sound-light alarm electricity
Road, controller are electrically connected with display circuit, sound light alarming circuit respectively, are connected between controller and the outer machine controller of outdoor machine of air-conditioner
It is connected to zero firewire communicating circuit；Controller detects the voltage signal of voltage sensor, and controller is according to voltage signal generation sound
Visual alarm, controller export sound and light alarm signal to sound light alarming circuit；Relay circuit receives opening for controller output
Control signal is closed, relay circuit includes relay, the first triode and the second triode, the output end and relay of controller
The normally opened contact of device is electrically connected, and the first coil end of relay is electrically connected with the collector of the first triode, the first triode
Base stage is electrically connected with the collector of the second triode, the emitter ground connection of the second triode.
Further embodiment is that switching power circuit, switching power circuit are connected between test module and power module
Including rectification circuit, switching power source chip and the first transformer, rectification circuit receives the current signal of power module output, whole
Current circuit exports the current signal after rectification to the first transformer, and the first transformer is electrically connected with switching power source chip.
One Preferable scheme is that, rectification circuit include the second transformer, rectifier and filter circuit, the second transformer
The current signal of power module output is received, the second transformer exports the second current signal to rectifier, rectifier and filtered electrical
Road is electrically connected.
Further embodiment is that zero firewire communicating circuit includes third transistor, the first photoelectrical coupler, the 4th triode
And second photoelectrical coupler, the collector of third transistor are electrically connected with the input terminal of the first photoelectrical coupler, the first photoelectricity
The output end of coupler is electrically connected with the input terminal of the second photoelectrical coupler, and the output end of the second photoelectrical coupler is respectively with the 4th
The base stage and collector of triode are electrically connected.
One Preferable scheme is that, test module further includes key circuit, and key circuit is electrically connected with the controller.
By said program as it can be seen that by being provided with detection of air-conditioning device in the interior machine of frequency-conversion air-conditioning system, detection dress
It sets and related operating instruction is sent to tested outdoor machine of air-conditioner by controller, be tested outdoor machine of air-conditioner and run according to the instruction works, and
The every operating parameter of feedback is to controller, for the automatic detection in outdoor unit production process, it is ensured that outdoor unit it is reliable
Production can not only utilize existing resource, can also improve outdoor unit detection efficiency.
Further, since can generate a larger induced voltage in face on a heat sink when insulating heat-conductive pad exception, therefore, this
The detection of air-conditioning device of utility model is detected the abnormal conditions of insulating heat-conductive pad by voltage sensor, different when detecting
When reason condition, producers can be reminded to handle by way of sound-light alarm, avoid extremely causing due to insulating heat-conductive pad
Disorderly closedown and the electrical safety event that is likely to occur.
Description of the drawings
Fig. 1 is the schematic block circuit diagram of the utility model frequency-conversion air-conditioning system embodiment.
Fig. 2 is the circuit diagram of switching power circuit in the utility model frequency-conversion air-conditioning system embodiment.
Fig. 3 is the circuit diagram of the utility model frequency-conversion air-conditioning system embodiment repeat circuit circuit.
Fig. 4 is the circuit diagram of zero firewire communicating circuit in the utility model frequency-conversion air-conditioning system embodiment.
Fig. 5 is the flow chart realized using the utility model frequency-conversion air-conditioning system embodiment.
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
Specific implementation mode
Detection of air-conditioning device provided by the utility model can be used for frequency-conversion air-conditioning system, such as testing convertible frequency air-conditioner system
The air conditioner electrical box 1 or outdoor machine of air-conditioner of system.Also, the detection of air-conditioning device of the utility model is controlled using existing indoor unit
Device is simply transformed, and for the automatic detection in outdoor machine of air-conditioner production process, ensures the reliable production of outdoor machine of air-conditioner, and add
Voltage detecting function is added, the abnormal conditions for detecting insulating heat-conductive pad.
Detection of air-conditioning device embodiment：
Referring to Fig. 1 to Fig. 2, the detection of air-conditioning device of the utility model includes test module 1 and power module 2, power supply
Module 2 is that test module 1 provides power supply, and switching power circuit 10, switch electricity are connected between test module 1 and power module 2
Source circuit 10 includes rectification circuit 11, switching power source chip U1 and transformer T1, and rectification circuit 11 receives power module 2 and exports
Current signal, rectification circuit 11 exports the current signal after rectification to transformer T1, transformer T1 and switching power source chip U1
Electrical connection.Wherein, diode D4 and photoelectrical coupler U2 constitutes electrical isolation formula external error amplifier, then with Switching Power Supply core
Piece U1 internal error amplifiers use, and intense adjustment are carried out to the control terminal electric current of switching power source chip U1, to significantly
Improve voltage regulation performance.So the ac signal that power module 2 exports can be converted to direct current telecommunications by switching power circuit 10
Number, and export to test module 1 and provide power supply for it.Preferably, switching power source chip U1 can be TOP224Y chips.
Wherein, rectification circuit 11 includes transformer 14, rectifier 15 and filter circuit, and transformer 14 receives power module
The current signal of 2 outputs, transformer 14 export the second current signal to rectifier 15, and rectifier 15 is electrically connected with filter circuit.
Preferably, transformer T1 is three-winding transformer, the both ends of the first siding ring of three-winding transformer and the output of filter circuit
End electrical connection.
Pfc circuit and radiator are provided in air conditioner electrical box 101, pfc circuit restores two soon by inductance, IGBT circuits
The electronic components such as pole pipe form, and insulating heat-conductive pad are provided between IGBT and radiator, between test module 1 and radiator
It is connected with voltage sensor 20, it is preferable that voltage sensor 20 could be sandwiched on the fin of radiator.Test module 1 includes control
Device 3, relay circuit 20, display circuit 30, key circuit 31 and sound light alarming circuit 40, controller 3 are electric with display respectively
Road 30, key circuit 31 and sound light alarming circuit 40 are electrically connected, and relay circuit 20 receives the switch control letter that controller 3 exports
Number.Specifically, referring to Fig. 3, relay circuit 20 includes relay K1, triode Q2 and triode Q3, the output of controller 3
End is electrically connected with the normally opened contact of relay K1, and the first coil end of relay K1 is electrically connected with the collector of triode Q2, after
The second coil-end of electric appliance K1 is grounded, and the base stage of triode Q2 is electrically connected with the collector of triode Q3, the transmitting of triode Q3
Pole is grounded.
As it can be seen that when relay K1 obtains electric actuation, i.e., when input is high level or low level, triode Q2 and triode Q3
Equal saturation conduction, when the first relay K1 dead electricity disconnects, i.e., when input is low level or high level, triode Q2 and triode
Q3 is turned off.Wherein, triode Q2 and triode Q3 can be PNP triodes or NPN triodes, if for example, triode Q2 and
Triode Q3 is PNP triodes, i.e., when input is low level, triode Q2 and the equal saturation conductions of triode Q3 work as input
For high level when, triode Q2 and triode Q3 are turned off.So controller 3 can by the closure of relay K1 or disconnect come
Control outer machine controller 100 obtains electric or power-off.
Referring to Fig. 4, zero firewire communicating circuit 50, zero firewire communication electricity are connected between controller 3 and outer machine controller 100
Road 50 includes triode Q4, photoelectrical coupler U3, triode Q5 and photoelectrical coupler U4, the collector and photoelectricity of triode Q4
The input terminal of coupler U3 is electrically connected, and the output end of photoelectrical coupler U3 is electrically connected with the input terminal of photoelectrical coupler U4, photoelectricity
The output end of coupler U4 is electrically connected with the base stage of triode Q5 and collector respectively.As it can be seen that controller 3 is communicated by zero firewire
Circuit 50 is communicated with outer machine controller 100, and 3 outside machine controller 100 of controller sends relevant operating instruction, allows tested
The each load of outdoor machine of air-conditioner all normally gets into smooth, and feeds back relevant test mode, air-conditioning by outer machine controller 100
Detection device can investigate the operation conditions for being tested each load of outdoor machine of air-conditioner.
In the present embodiment, key circuit 31 include start test button, sound light alarming circuit 40 include buzzer and LED
Lamp, display circuit 30 include test result indicator light.Specifically, referring to Fig. 5, during concrete application, first, step is executed
Rapid S1, judges whether pfc circuit is in open state.Wherein, user starts to test key to run air conditioning appliance by pressing
The detection of box 101, controller 3 electric 20 output switch control signal of backward relay circuit, tested compressor of air conditioner obtain it is electric after
It starts to work and runs by the setpoint frequency transmitted by controller 3, and communication data is fed back into controller 3, controller 3 judges quilt
Whether the run time for surveying compressor of air conditioner is greater than or equal to the opening time of preset pfc circuit, in this way, it is determined that PFC electricity
Road meets unlocking condition, if judging result is no, continues to execute step S1.Certainly, the preset opening time can be 20 seconds,
30 seconds or 40 seconds, the opening time of specific pfc circuit can be set according to user demand.
Then, step S2 is executed, the inductive voltage value U1 on radiator is detected.When controller 3 receives opening for pfc circuit
When opening signal, into the state-detection of insulating heat-conductive pad.Wherein, after being opened due to pfc circuit, the heat dissipation of air conditioner electrical box 101
It will produce inductive voltage value U1 on device, can judge whether insulating heat-conductive pad is in normal shape by voltage sensor 20 to detect
State.
Then, S3 is thened follow the steps, judges whether inductive voltage value U1 is greater than or equal to threshold voltage U2.Wherein, work as inspection
When the inductive voltage value U1 measured is greater than or equal to threshold voltage U2, S5 is thened follow the steps, determines that insulating heat-conductive pad is in abnormal
State.When inductive voltage value U1 is greater than or equal to threshold voltage U2, it can determine that insulating heat-conductive pad does not play insulation completely
Effect, you can think that insulating heat-conductive pad leakage patch or mistake are attached on other devices, and acousto-optic is carried out by sound light alarming circuit
The actions such as alarm remind producers to handle.
When the inductive voltage value U1 detected is less than threshold voltage U2, S4 is thened follow the steps, judges inductive voltage value U1
Whether threshold voltage U3 is greater than or equal to.Wherein, when the inductive voltage value U1 detected is greater than or equal to threshold voltage U2, then
Step S5 is executed, determines that insulating heat-conductive pad is in abnormality.Wherein, when inductive voltage value U1 is greater than or equal to threshold voltage U3
When, it can determine that insulating heat-conductive paves SI semi-insulation effect and do not reach insulating requirements alternatively, insulating heat-conductive pads abnormal performance,
And the actions such as sound-light alarm are carried out by sound light alarming circuit 40, producers is reminded to handle.For example, insulating heat-conductive pad
Breakage may have occurred during production, transport.In addition, the testing result of above-mentioned steps can pass through above-mentioned test result
Indicator light shows the result of detection.
When the inductive voltage value U1 detected is less than threshold voltage U3, S6 is thened follow the steps, is determined at insulating heat-conductive pad
In normal condition.
Specifically, threshold voltage U2 and threshold voltage U3 can be adjusted according to the case where practical air conditioner electrical box 101
The case where examination confirms, misjudgement is susceptible to when threshold values is relatively low, is susceptible to the case where failing to judge, wherein voltage valve when threshold values is higher
Value U2 is greater than or equal to threshold voltage U3.
So the detection device sends related operating instruction by controller 3 to tested outdoor machine of air-conditioner, it is tested outdoor machine of air-conditioner
It is run according to the instruction works, and feeds back every operating parameter to controller, for the automatic detection in outdoor unit production process,
It can ensure the reliable production of outdoor unit, can not only utilize existing resource, outdoor unit detection efficiency can also be improved.
Further, since can generate a larger induced voltage in face on a heat sink when insulating heat-conductive pad exception, therefore, this
The detection of air-conditioning device of utility model is detected the abnormal conditions of insulating heat-conductive pad by voltage sensor 20, when detecting
When abnormal conditions, producers can be reminded to handle by way of sound-light alarm, avoid leading extremely due to insulating heat-conductive pad
The disorderly closedown of cause and the electrical safety event being likely to occur.
Frequency-conversion air-conditioning system embodiment：
Frequency-conversion air-conditioning system in the present embodiment includes air conditioner electrical box 101 and outdoor machine of air-conditioner, 101 He of air conditioner electrical box
It is connected with detection of air-conditioning device between outdoor machine of air-conditioner, radiator is provided in air conditioner electrical box 101, detection of air-conditioning device includes surveying
Die trial block 1 and power module 2, power module 2 are that test module 1 provides power supply, are connected between test module 1 and radiator
Voltage sensor 20, test module 1 include controller 3, relay circuit 20, display circuit 30, key circuit 31 and acousto-optic
Warning circuit 40, controller 3 are electrically connected with display circuit 30, key circuit 31 and sound light alarming circuit 40 respectively, controller 3
Zero firewire communicating circuit 50 is connected between the outer machine controller 100 of outdoor machine of air-conditioner, controller 3 detects voltage sensor 20
Voltage signal, and controller 3 generates sound and light alarm signal according to voltage signal, controller 3 exports sound and light alarm signal to acousto-optic
Warning circuit 40 is connected with switching power circuit 10 between test module 1 and power module 2.
Pfc circuit and radiator are provided in air conditioner electrical box 101, pfc circuit restores two soon by inductance, IGBT circuits
The electronic components such as pole pipe form, and insulating heat-conductive pad are provided between IGBT and radiator, between test module 1 and radiator
It is connected with voltage sensor 20, it is preferable that voltage sensor 20 could be sandwiched on the fin of radiator, can pass through voltage sensor
The abnormal conditions of 20 pairs of insulating heat-conductive pads are detected.
Controller 3 is communicated by zero firewire communicating circuit 50 with outer machine controller 100, the control of 3 outside machine of controller
Device 100 sends relevant operating instruction, allows each load of tested outdoor machine of air-conditioner all normally to get into smooth, and pass through outer machine control
Device 100 processed feeds back relevant test mode, detection of air-conditioning device can be tested the operation conditions of each load of outdoor machine of air-conditioner into
Row investigation.
So by being provided with detection of air-conditioning device in the interior machine of frequency-conversion air-conditioning system, which passes through control
Device 3 sends related operating instruction to tested outdoor machine of air-conditioner, is tested outdoor machine of air-conditioner and is run according to the instruction works, and feeds back every fortune
Row parameter is to controller 3, for the automatic detection in outdoor unit production process, it is ensured that the reliable production of outdoor unit, not only
Existing resource can be utilized, outdoor unit detection efficiency can also be improved.
Further, since can generate a larger induced voltage in face on a heat sink when insulating heat-conductive pad exception, therefore, this
The detection of air-conditioning device of utility model is detected the abnormal conditions of insulating heat-conductive pad by voltage sensor 20, when detecting
When abnormal conditions, producers can be reminded to handle by way of sound-light alarm, avoid leading extremely due to insulating heat-conductive pad
The disorderly closedown of cause and the electrical safety event being likely to occur.
Finally it is emphasized that the above is only the preferred embodiment of the present invention, it is not limited to this reality
With novel, for those skilled in the art, the utility model can have various change and change, all in the utility model
Spirit and principle within, any modification, equivalent substitution, improvement and etc. done should be included in the protection model of the utility model
Within enclosing.
Claims (10)
1. detection of air-conditioning device, including test module and power module, the power module provide electricity for the test module
Source, it is characterised in that：
It is connected with voltage sensor between radiator in the test module and air conditioner electrical box；
The test module includes controller, relay circuit, display circuit and sound light alarming circuit, the controller difference
It is electrically connected with the display circuit, the sound light alarming circuit, zero firewire is connected between the controller and outer machine controller
Communicating circuit；
The controller detects the voltage signal of the voltage sensor, and the controller is according to the voltage signal generation sound
Visual alarm, the controller export the sound and light alarm signal to the sound light alarming circuit；
The relay circuit receives the switch control signal of controller output, the relay circuit include relay,
First triode and the second triode, the output end of the controller is electrically connected with the normally opened contact of the relay, described
The first coil end of relay is electrically connected with the collector of first triode, the base stage of first triode and described the
The collector of two triodes is electrically connected, the emitter ground connection of second triode.
2. detection of air-conditioning device according to claim 1, it is characterised in that：
Switching power circuit is connected between the test module and the power module, the switching power circuit includes rectification
Circuit, switching power source chip and the first transformer, the rectification circuit receive the current signal of the power module output, institute
The current signal after rectification circuit output rectification is stated to first transformer, first transformer and the Switching Power Supply core
Piece is electrically connected.
3. detection of air-conditioning device according to claim 2, it is characterised in that：
The rectification circuit includes the second transformer, rectifier and filter circuit, and second transformer receives the power supply
The current signal of module output, second transformer export the second current signal to the rectifier, the rectifier
It is electrically connected with the filter circuit.
4. detection of air-conditioning device according to claim 1 or 2, it is characterised in that：
The zero firewire communicating circuit includes third transistor, the first photoelectrical coupler, the 4th triode and the second photoelectricity coupling
Clutch, the collector of the third transistor are electrically connected with the input terminal of first photoelectrical coupler, the first photoelectricity coupling
The output end of clutch is electrically connected with the input terminal of second photoelectrical coupler, the output end difference of second photoelectrical coupler
It is electrically connected with the base stage of the 4th triode and collector.
5. detection of air-conditioning device according to claim 1 or 2, it is characterised in that：
The test module further includes key circuit, and the key circuit is electrically connected with the controller.
6. frequency-conversion air-conditioning system, including air conditioner electrical box and outdoor machine of air-conditioner, the air conditioner electrical box and the outdoor machine of air-conditioner it
Between be connected with detection of air-conditioning device, be provided with radiator in the air conditioner electrical box, it is characterised in that：
The detection of air-conditioning device includes test module and power module, and the power module provides electricity for the test module
Source is connected with voltage sensor between the test module and the radiator；
The test module includes controller, relay circuit, display circuit and sound light alarming circuit, the controller difference
Be electrically connected with the display circuit, the sound light alarming circuit, the outer machine controller of the controller and the outdoor machine of air-conditioner it
Between be connected with zero firewire communicating circuit；
The controller detects the voltage signal of the voltage sensor, and the controller is according to the voltage signal generation sound
Visual alarm, the controller export the sound and light alarm signal to the sound light alarming circuit；
The relay circuit receives the switch control signal of controller output, the relay circuit include relay,
First triode and the second triode, the output end of the controller is electrically connected with the normally opened contact of the relay, described
The first coil end of relay is electrically connected with the collector of first triode, the base stage of first triode and described the
The collector of two triodes is electrically connected, the emitter ground connection of second triode.
7. frequency-conversion air-conditioning system according to claim 6, it is characterised in that：
Switching power circuit is connected between the test module and the power module, the switching power circuit includes rectification
Circuit, switching power source chip and the first transformer, the rectification circuit receive the current signal of the power module output, institute
The current signal after rectification circuit output rectification is stated to first transformer, first transformer and the Switching Power Supply core
Piece is electrically connected.
8. frequency-conversion air-conditioning system according to claim 7, it is characterised in that：
The rectification circuit includes the second transformer, rectifier and filter circuit, and second transformer receives the power supply
The current signal of module output, second transformer export the second current signal to the rectifier, the rectifier
It is electrically connected with the filter circuit.
9. the frequency-conversion air-conditioning system described according to claim 6 or 7, it is characterised in that：
The zero firewire communicating circuit includes third transistor, the first photoelectrical coupler, the 4th triode and the second photoelectricity coupling
Clutch, the collector of the third transistor are electrically connected with the input terminal of first photoelectrical coupler, the first photoelectricity coupling
The output end of clutch is electrically connected with the input terminal of second photoelectrical coupler, the output end difference of second photoelectrical coupler
It is electrically connected with the base stage of the 4th triode and collector.
10. the frequency-conversion air-conditioning system described according to claim 6 or 7, it is characterised in that：
The test module further includes key circuit, and the key circuit is electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106057.3U CN207963065U (en) | 2018-01-22 | 2018-01-22 | Detection of air-conditioning device and frequency-conversion air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106057.3U CN207963065U (en) | 2018-01-22 | 2018-01-22 | Detection of air-conditioning device and frequency-conversion air-conditioning system |
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| Publication Number | Publication Date |
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| CN207963065U true CN207963065U (en) | 2018-10-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115962799A (en) * | 2021-10-13 | 2023-04-14 | 珠海拓芯科技有限公司 | Device and method for bidirectionally detecting position of air conditioner outdoor unit |
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2018
- 2018-01-22 CN CN201820106057.3U patent/CN207963065U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115962799A (en) * | 2021-10-13 | 2023-04-14 | 珠海拓芯科技有限公司 | Device and method for bidirectionally detecting position of air conditioner outdoor unit |
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