CN210181149U

CN210181149U - Durability test device for air conditioning system

Info

Publication number: CN210181149U
Application number: CN201921002802.0U
Authority: CN
Inventors: Zhiying Liu; 刘志英
Original assignee: Beijing Automotive Research Institute Co Ltd
Current assignee: Beijing Automotive Research Institute Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-03-24
Anticipated expiration: 2029-06-28

Abstract

The utility model provides an air conditioning system durability test device, include: the system comprises a programmable logic controller, a relay, a compressor, a high-low temperature damp-heat test box, a test module and a processing display module, wherein the relay and the compressor are positioned in the high-low temperature damp-heat test box; the output end of the programmable logic controller is connected with the control end of the relay; the input end of the relay is connected with the first power supply module, the output end of the relay is connected with the input end of the compressor, and the output end of the compressor is grounded; the testing module is respectively connected with the output end of the programmable logic controller, the input end of the compressor, the output end of the compressor and the processing and displaying module. The utility model discloses well processing display module shows the control signal of compressor terminal voltage and control relay actuation and disconnection, can conveniently look over the problem that appears in the test process, and the accurate fault reason of judging.

Description

Durability test device for air conditioning system

Technical Field

The utility model relates to an air conditioning system durability test field, in particular to air conditioning system durability test device.

Background

Along with the popularization of automobiles, people have more and more requirements on various performances of the automobiles, and the automobiles are not only required to provide convenience for traveling but also required to have better driving experience. For example, an air conditioning system installed on a vehicle is turned on to heat when the outdoor temperature is low, so that the temperature in the vehicle is raised; when the outdoor temperature is higher, the air conditioning system is turned on to refrigerate, and the temperature in the vehicle is reduced, so that people can be always in comfortable ambient temperature, and excellent driving experience is brought to people. Therefore, the air conditioner is the standard configuration on the current vehicle and is an important measure for the comfort of the vehicle.

The important part of the air conditioning system is a compressor, the compressor mainly outputs signals to a relay by an air conditioning controller, and the relay controls the start and stop of the compressor through closing and opening. In vehicles used in coastal and other humid and hot environments, the utilization rate of the air conditioning system is high, the relay is repeatedly closed and opened, the compressor is repeatedly started and stopped, and if the relay or the compressor resists the poor performance of the severe environment, the use of the air conditioning system is inevitably influenced, so that poor driving experience is brought to people.

However, the existing vehicle electrical component durability test system usually only counts the durability times to evaluate the durability of the electrical component, and the statistical parameters are fewer, so that the failure cause is not easy to find.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air conditioning system durability test device for it is less to solve among the prior art durability test statistical parameter, leads to the difficult problem of finding the trouble reason.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides an air conditioning system durability test device, include: the system comprises a programmable logic controller, a relay, a compressor, a high-low temperature damp-heat test box, a test module and a processing display module, wherein the relay and the compressor are positioned inside the high-low temperature damp-heat test box, and the programmable logic controller, the test module and the processing display module are positioned outside the high-low temperature damp-heat test box;

the output end of the programmable logic controller is connected with the control end of the relay; the input end of the relay is connected with the first power supply module, the output end of the relay is connected with the input end of the compressor, and the output end of the compressor is grounded; the testing module is respectively connected with the output end of the programmable logic controller, the input end of the compressor, the output end of the compressor and the processing and displaying module.

Further, the processing and displaying module comprises: the test host and the display unit; the test host is respectively connected with the test module and the display unit.

Further, the display unit is also connected with the programmable logic controller.

Further, still include: the output end of the compressor is grounded through the current sensor, and the current sensor is also connected with the test module.

Further, the output voltage of the first power supply module is a direct current voltage of 12 volts.

Further, still include: and the second power supply module is connected with the programmable logic controller, and the output voltage of the second power supply module is 220 volts of alternating current voltage.

Further, the test module includes: a first voltage test unit and a second voltage test unit; the input end of the first voltage test unit is connected with the output end of the programmable logic controller, and the output end of the first voltage test unit is connected with the processing display module; the input end of the second voltage testing unit is respectively connected with the input end and the output end of the compressor, and the output end of the second voltage testing unit is connected with the processing display module.

The utility model has the advantages that:

according to the technical scheme, in the durability test process, the test module collects the control signal output by the programmable logic controller and the terminal voltage between the input end and the output end of the compressor, and displays the control signal and the terminal voltage through the processing display module, so that the problems occurring in the test process can be conveniently checked, and the fault reason can be accurately judged.

Drawings

Fig. 1 shows a schematic view of an air conditioning system durability test apparatus according to an embodiment of the present invention.

Description of reference numerals:

11. a programmable logic controller; 12. a high-low temperature damp-heat test chamber; 13. a test module; 14. a processing display module; 141. a test host; 142. a display unit; 15. a first power supply module; 16. a second power supply module; 17. a current sensor; J. a relay; m, a compressor.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 1, the embodiment of the utility model provides an air conditioning system durability test device, this air conditioning system durability test device includes:

the system comprises a programmable logic controller 11, a relay J, a compressor M, a high-low temperature damp-heat test box 12, a test module 13 and a processing display module 14, wherein the relay J and the compressor M are both positioned inside the high-low temperature damp-heat test box 12, and the programmable logic controller 11, the test module 13 and the processing display module 14 are all positioned outside the high-low temperature damp-heat test box 12;

wherein, the output end of the programmable logic controller 11 is connected with the control end of the relay J; the input end of the relay J is connected with the first power supply module 15, the output end of the relay J is connected with the input end of the compressor M, and the output end of the compressor M is grounded; the test module 13 is respectively connected with the output end of the programmable logic controller 11, the input end of the compressor M, the output end of the compressor M and the processing and displaying module 14.

It should be noted that the test program may be edited by the processing display module 14 or a computer, downloaded to the programmable logic controller 11 through a data line or a network cable, and executed by the programmable logic controller 11, so as to output a control signal, which may be a continuous high-low level signal, but is not limited thereto. Preferably, the durability test device of the air conditioning system further comprises: and a second power module 16 connected to the programmable logic controller 11, wherein the output voltage of the second power module 16 is an ac voltage of 220 volts. The second power module 16 is used for providing an operating voltage of the programmable logic controller 11.

The relay J performs suction or disconnection according to the control signal, so as to communicate the connection between the first power supply module 15 and the compressor M, start the compressor M, or disconnect the connection between the first power supply module 15 and the compressor M, and close the compressor M. The first power module 15 is used for providing an operating voltage of the compressor M, and preferably, the output voltage of the first power module 15 is a dc voltage of 12 volts.

The test module 13 is connected with the output end of the programmable logic controller 11, so that the control signal output by the programmable logic controller 11 can be acquired; the test module 13 is also connected with the input end and the output end of the compressor M, so that the terminal voltage of the compressor M can be acquired; the test module 13 forwards the acquired control signal and the terminal voltage to the processing and displaying module 14; the processing and displaying module 14 displays the control signal and the terminal voltage, and may also process the control signal and the terminal voltage, and then display the processed data; when the display is performed, the display may be performed in the form of a number, a waveform, a table, or the like.

The embodiment of the utility model provides an in, carrying out the durability test in-process, test module 13 gathers the control signal of programmable logic controller 11 output and the terminal voltage between compressor M input and the output to show this control signal and terminal voltage through handling display module 14, can conveniently look over the problem that appears in the test in-process, accurate judgement failure reason.

Continuing to refer to fig. 1, in order to promote the flexibility of the durability test device of the air conditioning system, on the basis of the embodiment of the present invention, in an embodiment of the present invention, the processing display module 14 includes: a test host 141 and a display unit 142; wherein the test host 141 is connected to the test module 13 and the display unit 142, respectively.

It should be noted that the test host 141 has a function of processing and forwarding data; the display unit 142 has a function of displaying data, for example, the display unit 142 may be a monitor or a notebook computer. Of course, to facilitate counting the number of tests, it is preferable that the display unit 142 is further connected to the programmable logic controller 11. The connection between the display unit 142 and the programmable logic controller 11 may be established through a network cable, and the state of the programmable logic controller 11 executing the test program, the number of times of the test, and the like may be continuously displayed through the display unit 142. Of course, the number of tests may be the number of times the compressor M is started and stopped, but is not limited thereto.

Continuing to refer to fig. 1, in order to obtain the operating current of compressor M, on the basis of the embodiments of the above-mentioned utility model, in an embodiment of the utility model, this air conditioning system durability test device still includes: and the current sensor 17 is used for grounding the output end of the compressor M through the current sensor 17, and the current sensor 17 is also connected with the test module 13.

It should be noted that the current sensor 17 is arranged in series with the compressor M, and the current detected by the current sensor 17 is the working current of the compressor M.

On the basis of the above-mentioned each utility model embodiment, in the embodiment of the utility model, test module 13 includes: a first voltage test unit and a second voltage test unit; the input end of the first voltage test unit is connected with the output end of the programmable logic controller 11, and the output end of the first voltage test unit is connected with the processing display module 14; the input end of the second voltage testing unit is respectively connected with the input end and the output end of the compressor M, and the output end of the second voltage testing unit is connected with the processing and displaying module 14.

It should be noted that, when acquiring the control signal output by the programmable logic controller 11 and the terminal voltage of the compressor M, the test module 13 may acquire a voltage value by setting a voltage detection module, which may be a voltage sensor, but is not limited thereto.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

Claims

1. An air conditioning system durability test device, characterized by comprising: the system comprises a programmable logic controller, a relay, a compressor, a high-low temperature damp-heat test box, a test module and a processing display module, wherein the relay and the compressor are positioned inside the high-low temperature damp-heat test box, and the programmable logic controller, the test module and the processing display module are positioned outside the high-low temperature damp-heat test box;

2. The air conditioning system durability test apparatus according to claim 1, wherein the processing display module comprises: the test host and the display unit; the test host is respectively connected with the test module and the display unit.

3. The air conditioning system endurance testing apparatus of claim 2, in which the display unit is further connected to the programmable logic controller.

4. The air conditioning system durability test apparatus according to claim 1, further comprising: the output end of the compressor is grounded through the current sensor, and the current sensor is also connected with the test module.

5. The air conditioning system endurance testing apparatus of claim 1, wherein the output voltage of the first power module is 12 volts dc.

6. The air conditioning system durability test apparatus according to claim 1, further comprising: and the second power supply module is connected with the programmable logic controller, and the output voltage of the second power supply module is 220 volts of alternating current voltage.

7. The air conditioning system endurance testing apparatus of claim 1, wherein the testing module comprises: a first voltage test unit and a second voltage test unit; the input end of the first voltage test unit is connected with the output end of the programmable logic controller, and the output end of the first voltage test unit is connected with the processing display module; the input end of the second voltage testing unit is respectively connected with the input end and the output end of the compressor, and the output end of the second voltage testing unit is connected with the processing display module.