Testing device of refrigerant machine
By designing a refrigerant machine testing device and utilizing automated collection and detection of refrigerant machine parameters, the problem of low refrigerant machine testing efficiency was solved, and efficient automated detection and parallel testing of refrigerant machines were achieved.
Patent Information
- Application Number
- CN202421191541.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The testing efficiency of refrigerant machines in the prior art is low, especially the manual testing method results in high labor costs and low efficiency.
A refrigerant machine testing device is designed, which includes a first interface module, a data acquisition module and a controller. The device collects and detects relevant parameters of the refrigerant machine in an automated manner, realizes automatic testing of the refrigerant machine, and supports parallel testing of multiple refrigerants.
The test efficiency of the refrigerant machine is improved, the labor cost is reduced, and the automatic detection and parallel testing of the refrigerant machine are realized.
Smart Images
Figure CN223346967U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of testing, and in particular to a testing device for a refrigerant machine. Background Art
[0002] Semiconductor automated testing refers to the use of automatic test equipment (ATE) to inspect various parameters of devices under test (DUTs), eliminating defective products and ensuring the quality of semiconductor devices before they leave the factory. Current testing equipment on the market uses a refrigerant machine to provide a low-temperature cooling source. The refrigerant machine delivers low-temperature refrigerant through a circulating pipeline to a heat exchanger, cooling the DUT.
[0003] In the prior art, refrigerant machines are usually tested manually, which results in low testing efficiency. Utility Model Content
[0004] Based on this, it is necessary to provide a refrigerant machine testing device to address the above technical issues.
[0005] In a first aspect, an embodiment of the present invention provides a refrigerant machine testing device, the device comprising:
[0006] The first interface module includes a plurality of first interfaces, each of which is used to connect to a signal line of a corresponding refrigerant machine to be tested;
[0007] a data acquisition module connected to the first interface module and configured to acquire relevant parameters of each of the refrigerant machines to be tested;
[0008] The controller is connected to the data acquisition module and is used to obtain the relevant parameters to detect whether the refrigerant machines to be tested are abnormal.
[0009] In some embodiments, each of the refrigerant machines to be tested is provided with a pressure sensor for detecting internal pressure data, and the pressure sensor is connected to the signal line;
[0010] The data acquisition module collects the internal pressure data of each refrigerant machine to be tested;
[0011] The controller obtains each of the internal pressure data to detect whether the pressure maintenance of each of the refrigerant units to be tested is abnormal.
[0012] In some embodiments, each of the refrigerant machines to be tested is provided with a temperature sensor for detecting refrigerant temperature data, and the temperature sensor is connected to the signal line;
[0013] The data acquisition module collects the refrigerant temperature data of each refrigerant machine to be tested;
[0014] The controller obtains the refrigerant temperature data to detect whether the refrigerant temperature of each refrigerant machine to be tested is abnormal.
[0015] In some embodiments, each of the refrigerant machines to be tested is provided with a power detection module for detecting power consumption data, and the power detection module is connected to the signal line;
[0016] The data acquisition module collects the power consumption data of each refrigerant machine to be tested;
[0017] The controller obtains each of the detected power consumption data to detect whether the power consumption of each of the refrigerant machines to be tested is abnormal.
[0018] In some embodiments, the apparatus further comprises:
[0019] The second interface module includes a plurality of second interfaces, each of which is used to connect to the power line of the corresponding refrigerant machine to be tested, so as to form a plurality of parallel wiring detection circuits;
[0020] a power output module, connected to the second interface module, and configured to output a test voltage signal;
[0021] The data acquisition module is also used to collect the resistance of each wiring detection loop;
[0022] The controller obtains the resistance of each wiring detection circuit to detect whether the wiring of each refrigerant machine to be tested is abnormal.
[0023] In some embodiments, the data acquisition module includes a plurality of diodes, each of which is connected in series to each of the wiring detection circuits.
[0024] In some embodiments, the controller is further configured to send a control instruction to the refrigerant machine to be tested to control the refrigerant machine to stop working when the refrigerant machine to be tested is abnormal.
[0025] In some embodiments, the apparatus further comprises:
[0026] The industrial computer is connected to the controller and is used to obtain the relevant parameters and the test results of whether the refrigerant machines to be tested are abnormal, and generate a test report for the refrigerant machines to be tested.
[0027] In some embodiments, the apparatus further comprises:
[0028] A display is connected to the controller and is used to display the test results of whether each refrigerant machine to be tested is abnormal.
[0029] In some embodiments, the apparatus further comprises:
[0030] An alarm is connected to the controller and is used to output an alarm signal when the refrigerant machine to be tested is abnormal.
[0031] Compared with the existing technology, this technical solution has the following technical effects: the testing device is connected to the corresponding refrigerant machine to be tested through the first interface module, the relevant parameters of each refrigerant machine to be tested are collected through the data acquisition module, and each relevant parameter is obtained through the controller to detect whether each refrigerant machine to be tested is abnormal, thereby realizing automatic testing of the refrigerant machine and improving the testing efficiency of the refrigerant machine.
[0032] Since the first interface module includes multiple first interfaces, each of which is used to connect to the signal line of the corresponding refrigerant machine to be tested, parallel testing of multiple refrigerants can be achieved, further improving the testing efficiency of the refrigerant machines. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 This is a schematic diagram of module connections of a refrigerant machine testing device in one embodiment of the present application;
[0034] Figure 2 This is a connection diagram of the data acquisition module during the refrigerant machine pressure holding test in an exemplary embodiment of the present application;
[0035] Figure 3 This is a schematic diagram of module connections of a refrigerant machine testing device in another embodiment of the present application;
[0036] Figure 4 This is a connection diagram of a data acquisition module during a refrigerant machine wiring test in an exemplary embodiment of the present application;
[0037] Figure 5 This is a schematic diagram of module connections of a refrigerant machine testing device in another embodiment of the present application;
[0038] Figure 6 This is a schematic diagram of module connections of a refrigerant machine testing device in another embodiment of the present application;
[0039] Figure 7 This is a schematic diagram of module connections of a refrigerant machine testing device in another embodiment of the present application;
[0040] Figure 8 Schematic diagram of the structure of a test device for a refrigerant machine in one embodiment of the present application.
[0041] Among them, 1. cabinet; 10. test device; 20. refrigerant machine to be tested; 110. first interface module; 111. first interface; 120. data acquisition module; 130. controller; 140. second interface module; 141. second interface; 150. power output module; 160. industrial computer; 170. display; 180. touch screen; 190. alarm; 200. casters. DETAILED DESCRIPTION
[0042] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.
[0043] Obviously, the drawings described below are merely examples or embodiments of the present application. Those skilled in the art can, without inventive effort, apply the present application to other similar scenarios based on these drawings. Furthermore, it is also understood that, although the effort involved in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, changes in design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as an insufficiency of the content disclosed in this application.
[0044] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in multiple embodiments of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to independent or alternative embodiments that are mutually exclusive with other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments unless there is a conflict.
[0045] Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by a person of ordinary skill in the technical field to which this application belongs. The words "one", "a", "the" and the like used in this application do not indicate a limit on quantity and may indicate the singular or plural. The terms "include", "comprise", "have" and any variations thereof used in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units that are inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The word "multiple" used in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific order for the objects.
[0046] like Figure 1 As shown, this embodiment proposes a refrigerant machine testing device 10, which includes: a first interface module 110, including multiple first interfaces 111, respectively used to connect to the signal lines of the corresponding refrigerant machines 20 to be tested; a data acquisition module 120, connected to the first interface module 110, for collecting relevant parameters of each refrigerant machine 20 to be tested; a controller 130, connected to the data acquisition module 120, for obtaining various relevant parameters to detect whether each refrigerant machine 20 to be tested is abnormal.
[0047] The first interface 111 is, for example, a DB15 interface connector, which can be plugged into a signal line of the refrigerant machine 20 to be tested.
[0048] The data acquisition module 120 is, for example, an analog acquisition card with data communication function.
[0049] The controller 130 is, for example, a PLC controller 130 , which uses the TCP / IP communication protocol to achieve data communication with the data acquisition module 120 .
[0050] In this embodiment, the first interface module 110 is connected to the corresponding refrigerant machine 20 to be tested, the relevant parameters of each refrigerant machine 20 to be tested are collected through the data acquisition module 120, and the relevant parameters are obtained through the controller 130 to detect whether each refrigerant machine 20 to be tested is abnormal, thereby realizing automatic testing of the refrigerant machine and improving the testing efficiency of the refrigerant machine.
[0051] Since the first interface module 110 includes a plurality of first interfaces 111 , each of which is used to connect to a signal line of a corresponding refrigerant machine 20 to be tested, parallel testing of multiple refrigerants can be achieved, further improving the testing efficiency of the refrigerants.
[0052] The relevant parameters of the refrigerant machine 20 to be tested collected by the data collection module 120 include but are not limited to pressure data, refrigerant temperature data, and power consumption data.
[0053] As a refrigeration device, a refrigerant machine contains a pressure sensor for monitoring internal pressure data. After assembly, the refrigerant machine typically requires a long-term pressure test. Related techniques involve filling the refrigerant with an inert gas at a certain pressure and manually observing the pressure changes over a period of time to determine if there are leaks. This method is labor-intensive and inefficient.
[0054] To address the aforementioned technical issues, in some embodiments, a pressure sensor in each refrigerant unit 20 under test is connected to a signal line. After the refrigerant unit is filled with inert gas at a certain pressure, the pressure sensor continuously monitors internal pressure data. Data acquisition module 120 collects this internal pressure data and transmits it to controller 130. Controller 130 then retrieves the internal pressure data to detect any abnormalities in the pressure maintenance of each refrigerant unit 20 under test, thereby performing a pressure maintenance test on the refrigerant unit.
[0055] Figure 2 This is a connection diagram of the data acquisition module 120 during the refrigerant machine pressure maintenance test in an example embodiment of the present application. In this example embodiment, the data acquisition module 120 uses a data acquisition card, which has an AI 4-200ma current acquisition port, an AIPT100 acquisition port, an AO analog output port, multiple AI resistance measurement ports, and multiple DO1 ports. The AI 4-200ma current acquisition port is connected to the first interface module 110 as the data acquisition port for internal pressure data. The multiple first interfaces of the first interface module 110 are respectively connected to the pressure sensors of multiple refrigerant machines via communication lines.
[0056] During the pressure maintenance test, the controller 130 obtains the internal pressure data of each refrigerant machine. Once the internal pressure data is found to be reduced, it is determined that there is a leak in the refrigerant machine, that is, the pressure maintenance of the refrigerant machine is abnormal.
[0057] In some embodiments, each refrigerant machine 20 under test is equipped with a temperature sensor for detecting refrigerant temperature data, and the temperature sensor is connected to a signal line. The data acquisition module 120 collects refrigerant temperature data from each refrigerant machine 20 under test. The controller 130 obtains the refrigerant temperature data to detect whether the refrigerant temperature of each refrigerant machine 20 under test is abnormal.
[0058] The refrigerant temperature data may be the temperature data of the liquid outlet of the refrigerant machine. During normal operation of the refrigerant machine, the refrigerant temperature data at the liquid outlet usually remains stable. When the controller 130 determines that the refrigerant temperature data deviates from the normal temperature, it determines that the refrigerant temperature of the refrigerant machine is abnormal, and may further determine that there is a problem with the performance of the refrigerant machine.
[0059] Regarding the connection of the data acquisition module 120 during the refrigerant temperature test of the refrigerant machine, please refer to the above embodiment. Figure 2 , I will not go into details here.
[0060] In some embodiments, each refrigerant machine 20 under test is equipped with a power detection module for detecting power consumption data, and the power detection module is connected to the signal line. The data acquisition module 120 collects power consumption data of each refrigerant machine 20 under test, and the controller 130 obtains each detected power consumption data to detect whether the power consumption of each refrigerant machine 20 under test is abnormal.
[0061] When the refrigerant machine is operating normally, its power consumption data is within a certain range. When the controller 130 determines that the power consumption data deviates from the range, it determines that the power consumption of the refrigerant machine 20 to be tested is abnormal.
[0062] Regarding the connection of the data acquisition module 120 during the refrigerant machine power consumption test, please refer to the above embodiment. Figure 2 , I will not go into details here.
[0063] In the related art, electrical wiring of the refrigerant machine is entirely inspected manually, resulting in low inspection efficiency.
[0064] To solve the above technical problems, in some embodiments, Figure 3 As shown, the device also includes: a second interface module 140, including multiple second interfaces 141, which are respectively used to connect to the power lines of the corresponding refrigerant machines 20 to be tested, so as to respectively form multiple parallel wiring detection circuits; a power output module 150, connected to the second interface module 140, for outputting a test voltage signal; the data acquisition module 120 is also used to collect the resistance of each wiring detection circuit; the controller 130 obtains the resistance of each wiring detection circuit to detect whether the wiring of each refrigerant machine 20 to be tested is abnormal.
[0065] The second interface 141 is, for example, an aviation socket adapted to the corresponding refrigerant machine, and is plugged into the aviation plug of the refrigerant machine. In some embodiments, due to the differences in the models of the adapted refrigerant machines, the aviation socket is designed to be foolproof to achieve a one-to-one correspondence.
[0066] In this embodiment, the controller 130 obtains the resistance of each wiring detection circuit to detect whether the wiring of each refrigerant machine 20 under test is abnormal, thereby achieving automatic testing of the refrigerant machine wiring. In addition, multiple second interfaces are connected to the power lines of the corresponding refrigerant machines 20 under test to form multiple parallel wiring detection circuits, thereby achieving parallel wiring testing of multiple refrigerants and improving wiring testing efficiency.
[0067] Figure 4 This is a schematic diagram of the connections for data acquisition module 120 during a refrigerant machine wiring test in an exemplary embodiment of the present application. In this exemplary embodiment, data acquisition module 120 utilizes a data acquisition card, and second interface 141 utilizes an aviation socket. The AI resistance measurement port on the data acquisition card serves as the data acquisition port, connecting to multiple aviation sockets. These sockets are then connected to the aviation plugs on the refrigerant machine's power lines.
[0068] The AI resistance measurement port calculates the resistance of the wiring detection loop based on the voltage signal (e.g., 5V) applied by the power output module 150 and the collected current signal. If the resistance is 0 or too large, the controller 130 determines that the wiring of the refrigerant machine is abnormal.
[0069] In some embodiments, the data acquisition module 120 includes a plurality of diodes, each diode being connected in series to each wiring detection loop for short circuit protection.
[0070] In some embodiments, the controller 130 is further configured to send a control instruction to the refrigerant machine 20 to stop working when the refrigerant machine 20 is abnormal, thereby preventing the failure from expanding.
[0071] When the refrigerant machine 20 to be tested cannot be controlled to stop working, the testing device 10 can directly cut off the power supply to the refrigerant machine 20 to be tested.
[0072] In some embodiments, as Figure 5 As shown, the device further includes: an industrial computer 160 connected to the controller 130 , for obtaining the relevant parameters and the test results of whether each refrigerant machine 20 to be tested is abnormal, and generating a test report for each refrigerant machine 20 to be tested.
[0073] As the core of data storage and recording of the entire test device 10, the industrial computer 160 can realize functions such as data recording and test report generation, thereby saving human resources and reducing the workload of testers.
[0074] In some embodiments, as Figure 6 As shown, the device further includes: a display 170 connected to the controller 130, for displaying the test results of whether each refrigerant machine 20 to be tested is abnormal.
[0075] The device further includes a touch screen 180 , which can quickly turn the test device 10 on and off and select test items.
[0076] In some embodiments, as Figure 7 As shown, the device further includes: an alarm 190 connected to the controller 130, for outputting an alarm signal when the refrigerant machine 20 to be tested is abnormal.
[0077] The alarm 190 is, for example, a light alarm buzzer, which expands the observable range of the alarm signal through media such as sound and light.
[0078] Figure 8 FIG. 1 is a schematic diagram of the structure of a test device 10 for a refrigerant machine according to an embodiment of the present application. Figure 8 As shown, the device includes a cabinet 1, a plurality of first interfaces and a plurality of second interfaces are provided on the side of the cabinet 1, an industrial computer 160, a display 170, and an alarm 190 are installed on the top of the cabinet, and casters 200 are installed on the bottom of the cabinet.
[0079] The operating procedures of the testing device 10 are as follows:
[0080] When the pressure maintenance, refrigerant temperature and power consumption process tests are performed on the refrigerant machine 20 to be tested, according to the corresponding relationship of the refrigerant machine 20 to be tested, the connector of the signal line of the refrigerant machine 20 to be tested is correctly inserted into the first interface, and it is confirmed that the data recording function of the industrial computer 160 software of the industrial computer 160 is turned on. The number of the refrigerant machine 20 to be tested is entered on the display 170, and the fully automatic detection process of the refrigerant machine 20 to be tested can be realized.
[0081] If pressure leakage, abnormal refrigerant temperature, or abnormal power consumption occurs during this period, there will be corresponding sound and light alarm prompts. Follow the prompts to complete the abnormality confirmation.
[0082] When performing a wiring test on the refrigerant unit 20 under test, correctly insert the power cord connector of the refrigerant unit into the second port according to the corresponding relationship of the refrigerant unit 20 under test. After clicking Start Wiring Test on the display 170, wait 30 seconds and the wiring test results will be displayed on the display 170. If the wiring test feedback is normal, the process will proceed to the next step. If the test is abnormal, the abnormality code will be recorded and rework will be carried out.
[0083] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0084] The above embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the concept of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be based on the appended claims.
Claims
1. A refrigerant machine testing device, characterized in that: The device comprises: The first interface module includes a plurality of first interfaces, each of which is used to connect to a signal line of a corresponding refrigerant machine to be tested; a data acquisition module connected to the first interface module, for collecting relevant parameters of each of the refrigerant machines to be tested; the relevant parameters include internal pressure data, refrigerant temperature data, and power consumption data of each of the refrigerant machines to be tested; The controller is connected to the data acquisition module and is used to obtain the relevant parameters to detect whether the refrigerant machines to be tested are abnormal.
2. The refrigerant machine testing device according to claim 1, characterized in that: Each of the refrigerant machines to be tested is provided with a pressure sensor for detecting internal pressure data, and the pressure sensor is connected to the signal line; The data acquisition module collects the internal pressure data of each refrigerant machine to be tested; The controller obtains each of the internal pressure data to detect whether the pressure maintenance of each of the refrigerant units to be tested is abnormal.
3. The refrigerant machine testing device according to claim 1, characterized in that: Each of the refrigerant machines to be tested is provided with a temperature sensor for detecting refrigerant temperature data, and the temperature sensor is connected to the signal line; The data acquisition module collects the refrigerant temperature data of each refrigerant machine to be tested; The controller obtains the refrigerant temperature data to detect whether the refrigerant temperature of each refrigerant machine to be tested is abnormal.
4. The refrigerant machine testing device according to claim 1, characterized in that: Each of the refrigerant machines to be tested is provided with a power detection module for detecting power consumption data, and the power detection module is connected to the signal line; The data acquisition module collects the power consumption data of each refrigerant machine to be tested; The controller obtains the detected power consumption data to detect whether the power consumption of each refrigerant machine to be tested is abnormal.
5. The refrigerant machine testing device according to claim 1, characterized in that: The device further comprises: The second interface module includes a plurality of second interfaces, each of which is used to connect to the power line of the corresponding refrigerant machine to be tested, so as to form a plurality of parallel wiring detection circuits; a power output module, connected to the second interface module, and configured to output a test voltage signal; The data acquisition module is also used to collect the resistance of each wiring detection loop; The controller obtains the resistance of each wiring detection circuit to detect whether the wiring of each refrigerant machine to be tested is abnormal.
6. The refrigerant machine testing device according to claim 5, characterized in that: The data acquisition module includes a plurality of diodes, each of which is connected in series to each of the wiring detection circuits.
7. The refrigerant machine testing device according to claim 1, characterized in that: The controller is further configured to send a control instruction to the refrigerant machine to be tested to control the refrigerant machine to stop working when the refrigerant machine to be tested is abnormal.
8. The refrigerant machine testing device according to claim 1, characterized in that: The device further comprises: The industrial computer is connected to the controller and is used to obtain the relevant parameters and the test results of whether the refrigerant machines to be tested are abnormal, and generate a test report for the refrigerant machines to be tested.
9. The refrigerant machine testing device according to claim 1, characterized in that: The device further comprises: A display is connected to the controller and is used to display the test results of whether each refrigerant machine to be tested is abnormal.
10. The refrigerant machine testing device according to claim 1, characterized in that: The device further comprises: An alarm is connected to the controller and is used to output an alarm signal when the refrigerant machine to be tested is abnormal.