Compressor insulation withstand test tooling

Abstract

This invention provides a compressor insulation withstand voltage test fixture, including a first docking component and a second docking component. The first docking component is connected to the compressor's suction pipe, and the second docking component is connected to the compressor's terminal block for performing an insulation withstand voltage test on the compressor. The terminal block is located on the compressor housing, and the suction pipe is located on a distributor outside the housing. This invention's compressor insulation withstand voltage test fixture, by changing the docking of the test connector from the compressor's exhaust pipe to the compressor's suction pipe, ensures that the two test connectors maintain a sufficient distance. This facilitates docking between the test connector and the compressor while preventing arcing due to excessively close proximity, thus solving the problems of poor contact and high alarm rates caused by arcing in the original industry testing methods.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically to a compressor insulation withstand voltage test fixture. Background Technology

[0002] The insulation withstand voltage test of the air conditioner compressor is to detect whether the compressor is leaking electricity, and it is a mandatory test item before the compressor leaves the factory. Currently, the compressor insulation withstand voltage test involves directly connecting two test probes to the exhaust pipe 53 and terminal 52 of the compressor 5. Figure 7 As shown, because the connecting terminal 52 and the exhaust pipe 53 are too close, poor contact and sparking are likely to occur, resulting in a high frequency of abnormal detections and a high false alarm rate in humid weather. Furthermore, the existing connection method between the test rod and the exhaust pipe makes switching compressor models time-consuming, severely impacting the compressor production cycle. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a compressor insulation withstand voltage test fixture that can reduce the false alarm rate of compressor insulation withstand voltage testing.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A compressor insulation withstand voltage test fixture includes a first docking assembly and a second docking assembly;

[0006] The first docking component is connected to the compressor's suction pipe, and the second docking component is connected to the compressor's terminal block to perform an insulation withstand voltage test on the compressor.

[0007] The terminal block is located on the compressor housing, and the suction pipe is located on the distributor outside the housing.

[0008] The insulation withstand voltage test fixture of this application changes the connection of the existing test connector to the compressor exhaust pipe, and instead connects it to the compressor suction pipe. Since the suction pipe is located on the compressor distributor, away from the compressor body, it maintains a sufficient distance from the terminals on the casing. This facilitates the connection of the test connector to the compressor and prevents arcing caused by the test connector being too close. This solves the problem of poor contact and high alarm rates caused by arcing in the original test mode of the industry. As a result, the compressor insulation withstand voltage test fixture of this application has a low false alarm rate.

[0009] In some embodiments, the first docking assembly includes a first support base and an annular metal plate;

[0010] The annular metal plate is vertically and movablely connected to the first support base. The annular metal plate has a clearance hole in the center for the air intake pipe to pass through, and a first wiring portion is provided on the annular metal plate.

[0011] The insulation withstand voltage test fixture of this application connects to the compressor suction pipe via an annular metal plate. This annular structure of the metal plate, which can be raised and lowered, can fully connect to the suction pipe to be compatible with different models of compressors. This can speed up the compressor model switching speed during withstand voltage testing and thus improve testing efficiency.

[0012] In some embodiments, the first docking assembly further includes a plurality of first sliding connection structures evenly distributed along the circumference of the annular metal plate.

[0013] The first sliding connection structure includes a first sliding shaft, a first linear bearing, and a first limiting block;

[0014] The first linear bearing is mounted on the first support base, the first sliding shaft is slidably connected to the first linear bearing, the bottom end of the first sliding shaft is insulated from the annular metal plate, and the first limiting block is connected to the top end of the first sliding shaft to prevent the first sliding shaft from falling off the first linear bearing.

[0015] The insulation withstand voltage test fixture of this application uses a ring-shaped metal plate to achieve lifting and displacement through a linear bearing and a sliding shaft. The movement is stable and can ensure that the ring-shaped metal plate will not shake during the lifting process, thus avoiding collision between the ring-shaped metal plate and the suction pipe during the lifting process.

[0016] In some embodiments, the second docking assembly includes a second support base and a metal probe;

[0017] The metal probe is vertically and movablely connected to the second support base. The bottom surface of the metal probe is an inclined surface that matches the top surface of the terminal block. The metal probe is provided with a second wiring portion.

[0018] The insulation withstand voltage test fixture of this application can be tested simply by contacting the metal probe with the terminal block. Since the terminal block is usually located on the arc-shaped top surface of the compressor casing, the bottom surface of the metal probe is designed as an inclined surface that matches the top surface of the terminal block. This ensures reliable contact between the metal probe and the terminal block and prevents abnormal alarms caused by poor contact.

[0019] In some embodiments, the second docking assembly further includes an insulating base;

[0020] The insulating base is vertically and movablely connected to the second support base. The insulating base is provided with a vertically extendable elastic element, and the metal probe is connected to the bottom of the elastic element.

[0021] The insulation withstand voltage test fixture of this application has a glass body under the compressor terminal, which is easily damaged by compression. The metal probe is elastically connected to the insulating base. During the process of the metal probe moving down and contacting the terminal, the elastic element provides buffering, and the rigid contact between the metal probe and the terminal becomes a flexible contact, which can prevent the metal probe from crushing the terminal.

[0022] In some embodiments, the second docking assembly further includes a second sliding connection structure;

[0023] The second sliding connection structure includes a second sliding shaft, a second linear bearing, and a second limiting block;

[0024] The second linear bearing is mounted on the second support base, the second sliding shaft is slidably connected to the second linear bearing, the bottom end of the second sliding shaft is connected to the insulating base, and the second limiting block is connected to the top end of the second sliding shaft to prevent the second sliding shaft from falling off the second linear bearing.

[0025] The insulation withstand voltage test fixture of this application uses a metal probe that achieves lifting and lowering displacement through a linear bearing and a sliding shaft. The movement is stable and can ensure that the metal probe will not shake during the lifting and lowering process, thus ensuring accurate connection between the metal probe and the terminal block.

[0026] In some embodiments, the compressor insulation withstand voltage test fixture further includes a drive assembly, and both the first docking assembly and the second docking assembly are connected to the drive assembly;

[0027] The drive assembly is used to drive the first docking assembly to connect with the suction pipe of the compressor, and the drive assembly is also used to drive the second docking assembly to connect with the terminal block of the compressor.

[0028] The insulation withstand voltage testing fixture of this application enables automatic testing of the compressor's insulation withstand voltage by driving the first and second docking components to connect with the compressor via a drive assembly. Specifically, the fixture is installed above the compressor test line. The first and second docking components are respectively connected to the insulation withstand voltage tester. After the compressor is in position, the drive assembly activates, and the first and second docking components press down. The first docking component contacts the suction pipe, and the second docking component contacts the terminal block, forming a test circuit. The insulation withstand voltage tester is powered by high voltage to begin the test. After the test is completed, the drive assembly activates again, and the first and second docking components rise, allowing the compressor to discharge, thus achieving automatic compressor detection.

[0029] In some embodiments, the drive assembly includes a driver, a lifting plate, and an insulating base;

[0030] The power output end of the driver is connected to the lifting plate and is used to drive the lifting plate to move up and down.

[0031] The insulating base is connected to the lifting plate, and the first docking assembly and the second docking assembly are respectively connected to the insulating base.

[0032] The insulation withstand voltage test fixture of this application has a first docking component and a second docking component connected to the lifting plate of the driver through an insulating base. The lifting plate facilitates the installation and positioning of the first and second docking components and makes it easy to adjust their relative positions. The insulating base achieves insulation isolation between the first and second docking components and the driver, thereby improving the electrical safety of the fixture.

[0033] In some embodiments, the drive assembly further includes an intermediate plate and a plurality of connecting rods;

[0034] The power output end of the driver is connected to the intermediate plate and is used to drive the intermediate plate to move up and down.

[0035] Several connecting rods are spaced apart between the intermediate plate and the lifting plate, the intermediate plate is connected to the top end of the connecting rods, and the lifting plate is connected to the bottom end of the connecting rods.

[0036] The insulation withstand voltage test fixture of this application has a lifting plate and an insulating base suspended below the intermediate plate by a connecting rod, which increases the distance between the insulating base and the driver and further improves the electrical safety of the fixture.

[0037] In some implementations, there are multiple first docking components and multiple second docking components, which are connected in pairs to the drive component.

[0038] The insulation withstand voltage test fixture of this application, by setting multiple pairs of first docking components and second docking components, can simultaneously perform insulation withstand voltage tests on multiple compressors, thereby further improving the testing efficiency.

[0039] As can be seen from the above technical solution, the compressor insulation withstand voltage test fixture of this application, by changing the connection of the test connector from the compressor exhaust pipe to the compressor suction pipe, allows the two test connectors to maintain a sufficient distance. This facilitates the connection between the test connector and the compressor, and prevents arcing caused by the test connectors being too close. This solves the problem of poor contact and high alarm rates caused by arcing in the original industry test mode. At the same time, the first docking component connected to the suction pipe adopts a ring structure that can be raised and lowered, which can fully dock with the suction pipe to be compatible with different models of compressors. This can speed up the compressor model switching speed during withstand voltage testing, thus making the compressor insulation withstand voltage test fixture of this application have the characteristics of low false alarm rate and high testing efficiency. Attached Figure Description

[0040] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0041] Figure 1 This is a front view of the compressor insulation withstand voltage test fixture according to an embodiment of the present invention;

[0042] Figure 2 for Figure 1 A partial schematic diagram of the upper middle section;

[0043] Figure 3 This is a schematic diagram of the structure of the first docking component according to an embodiment of the present invention. Figure 1 ;

[0044] Figure 4 This is a schematic diagram of the structure of the first docking component according to an embodiment of the present invention. Figure 2 ;

[0045] Figure 5 This is a schematic diagram of the structure of the second docking component according to an embodiment of the present invention. Figure 1 ;

[0046] Figure 6 for Figure 5 A partial schematic diagram of the bottom middle section;

[0047] Figure 7 This is a schematic diagram of the compressor structure;

[0048] in:

[0049] 1-First docking assembly; 2-Second docking assembly; 3-Drive assembly; 4-Frame; 5-Compressor;

[0050] 11-First support base; 12-Annular metal plate; 13-First wiring part; 14-First sliding shaft; 15-First linear bearing; 16-First limiting block; 17-Insulating pad;

[0051] 21-Second support base; 22-Metal probe; 23-Second wiring section; 24-Insulating base; 25-Elastic element; 26-Second sliding shaft; 27-Second linear bearing; 28-Second limit block; 29-Bolt adjustment assembly;

[0052] 31-Driver; 32-Lifting plate; 33-Insulating base; 34-Intermediate plate; 35-Connecting rod;

[0053] 51-Intake pipe; 52-Terminal; 53-Exhaust pipe. Detailed Implementation

[0054] Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0055] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” as used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0056] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0057] The insulation withstand voltage test of an air conditioner compressor is to detect whether the compressor is leaking electricity, and it is a mandatory test item before the compressor leaves the factory. Figure 7 As shown, compressor 5 typically includes a main body housing and a distributor located on the outside of the housing. The suction pipe 51 of compressor 5 is located on top of the distributor, and the terminal block 52 and discharge pipe 53 of compressor 5 are respectively located on the top of the housing. Currently, the compressor insulation withstand voltage test involves directly connecting two test rods to the discharge pipe 53 and terminal block 52 of compressor 5. Because the terminal block 52 and discharge pipe 53 are too close, poor contact and arcing are prone to occur, resulting in a high frequency of abnormal detections and a high false alarm rate in humid weather. Furthermore, the existing connection method between the test rods and the discharge pipe is time-consuming when switching compressor models, severely impacting compressor production cycle time.

[0058] To address this issue, this application proposes a compressor insulation withstand voltage test fixture to solve the problems of high frequency of abnormal alarms and long switching time in existing test fixtures.

[0059] like Figure 1 and Figure 2As shown, a compressor insulation withstand voltage test fixture includes a first docking component 1 and a second docking component 2. The first docking component 1 is connected to the suction pipe 51 of the compressor 5, and the second docking component 2 is connected to the terminal block 52 of the compressor 5 to perform an insulation withstand voltage test on the compressor 5. The terminal block 52 is located on the casing of the compressor 5, and the suction pipe 51 is located on the liquid distributor outside the casing of the compressor 5.

[0060] By applying the technical solution of this embodiment, the existing test connector is changed from being connected to the exhaust pipe 53 of the compressor 5 to being connected to the suction pipe 51 of the compressor 5. Since the suction pipe 51 of the compressor 5 is located on the distributor of the compressor 5 and is far away from the casing of the compressor 5 body, the suction pipe 51 and the terminal 52 have sufficient distance. This facilitates the connection of the first docking component 1, the second docking component 2 and the compressor 5, and prevents the occurrence of electrical arcing due to the first docking component 1 and the second docking component 2 being too close. This solves the problem of poor contact of the test connector and high abnormal alarm caused by arcing in the original test mode of the industry. As a result, the compressor insulation withstand voltage test fixture of this application has the characteristic of low false alarm rate.

[0061] The compressor insulation withstand voltage test fixture of this application has a first docking component 1 and a second docking component 2 that are electrically connected to an insulation withstand voltage tester. The first docking component 1 is connected to the suction pipe 51 of the compressor 5, which is equivalent to one end of the insulation withstand voltage tester being connected to the housing of the compressor 5. The second docking component 2 is connected to the terminal 52 of the compressor 5, which is equivalent to the other end of the insulation withstand voltage tester being connected to the motor inside the compressor 5. When the insulation withstand voltage tester is powered by high voltage, the insulation withstand voltage tester can be used to perform an insulation withstand voltage test on the compressor 5.

[0062] See Figure 1 In this application, the first docking component 1 and the second docking component 2 are both mounted on the frame 4 in a height-adjustable manner. The frame 4 is installed above the test line of the compressor. A drive component 3 is provided on the top of the frame 4. The first docking component 1 and the second docking component 2 are both connected to the drive component 3. The drive component 3 is used to drive the first docking component 1 and the second docking component 2 to move up and down, so that when the first docking component 1 is pressed down, it connects to the suction pipe 51 of the compressor 5, and when it rises, it disengages from the suction pipe 51 of the compressor 5. At the same time, it also allows the second docking component 2 to connect to the terminal 52 of the compressor 5 when it is pressed down, and to disengage from the terminal 52 of the compressor 5 when it rises.

[0063] During the specific test, after the compressor 5 is in position, the drive component 3 is activated, and the first docking component 1 and the second docking component 2 are pressed down. The first docking component 1 contacts the suction pipe 51 of the compressor 5, and the second docking component 2 contacts the terminal 52 of the compressor 5, forming a test circuit. The insulation withstand voltage tester is powered by high voltage to start the test. After the test is completed, the drive component 3 is activated again, and the first docking component 1 and the second docking component 2 rise up and disengage from the compressor 5, allowing the compressor 5 to flow out, thus realizing the automated test operation of the insulation withstand voltage of the compressor 5.

[0064] See Figure 2 The drive assembly 3 of this application includes a driver 31, a lifting plate 32 and an insulating base 33. The driver 31 is mounted on the top of the frame 4. The power output end of the driver 31 is connected to the lifting plate 32 to drive the lifting plate 32 to move up and down. The insulating base 33 is connected to the lifting plate 32. The first docking assembly 1 and the second docking assembly 2 are respectively connected to the insulating base 33.

[0065] Combination Figure 2 As can be seen, the first docking component 1 and the second docking component 2 are connected to the lifting plate 32 of the drive component 3 through the insulating base 33. The setting of the insulating base 33 realizes the insulation isolation between the first docking component 1 and the second docking component 2 and the driver 31, improving the electrical safety of the tooling. The setting of the lifting plate 32 facilitates the installation and positioning of the first docking component 1 and the second docking component 2, and makes it easy to adjust the relative position between them.

[0066] Optionally, a horizontal groove or rail is provided on the lifting plate 32 or the insulating base 33, and at least one of the first docking component 1 and the second docking component 2 can move along the groove or rail, thereby realizing the adjustment of the distance between the first docking component 1 and the second docking component 2 to accommodate compressors 5 of different specifications.

[0067] See Figure 2 The drive assembly 3 also includes an intermediate plate 34 and several connecting rods 35. The power output end of the driver 31 is connected to the intermediate plate 34 to drive the intermediate plate 34 to move up and down. Several connecting rods 35 are spaced apart between the intermediate plate 34 and the lifting plate 32. The intermediate plate 34 is connected to the top of the connecting rods 35, and the lifting plate 32 is connected to the bottom of the connecting rods 35.

[0068] In this way, the lifting plate 32 and the insulating base 33 are suspended below the intermediate plate 34 by the connecting rod 35, which increases the distance between the insulating base 33 and the driver 31. This can improve the electrical safety of the entire test fixture, and also increase the lifting space of the first docking assembly 1 and the second docking assembly 2, thereby improving the adaptability to the height of the compressor 5.

[0069] It should be noted that "several" in this application refers to two or more items, including two.

[0070] See Figure 2 The driver 31 can be a linear drive component such as a cylinder or an electric lead screw. In this embodiment, a servo cylinder is used, with its movable end facing upwards. It is connected to the intermediate plate 34 via a gantry frame, which improves the motion stability of the intermediate plate 34 and its connecting components. At the same time, an upward push rod is provided in the middle of the upper surface of the intermediate plate 34 to limit the upward stroke of the intermediate plate 34 and prevent it from colliding with the frame 4.

[0071] See Figure 2 There are multiple first docking components 1 and second docking components 2, which are connected in pairs to the drive component 3. Specifically, there are two first docking components 1 and two second docking components 2, which are divided into two groups and arranged at intervals along the conveying direction of the compressor test line. Each group of first docking components 1 and second docking components 2 is connected to the lifting plate 32 through an insulating base 33. In this way, insulation withstand voltage tests can be performed on two compressors at the same time, which further improves the testing efficiency.

[0072] It should be noted that, although in the above description, the first docking component 1 and the second docking component 2 achieve synchronous lifting and lowering displacement through a drive component 3, the first docking component 1 and the second docking component 2 can also be driven by different drive components 3, so that the lifting and lowering displacement of the first docking component 1 and the second docking component 2 can be controlled independently.

[0073] See Figure 3 and Figure 4 The first docking assembly 1 includes a first support base 11 and an annular metal plate 12. The annular metal plate 12 is vertically and movably connected to the first support base 11. The center of the annular metal plate 12 has a clearance hole through which the suction pipe 51 of the compressor 5 passes. The annular metal plate 12 is provided with a first wiring part 13. Specifically, the first wiring part 13 is a cable connection hole opened on the edge of the annular metal plate 12. The annular metal plate 12 is connected to the insulation withstand voltage tester through a cable to form a circuit for power supply.

[0074] Optionally, the annular metal plate 12 may be made of brass.

[0075] In specific implementation, the first support base 11 is connected to the drive assembly 3. More specifically, the first support base 11 is connected to the insulating base 33 of the drive assembly 3. The clearance hole in the center of the annular metal plate 12 can be conveniently fitted onto the suction pipe 51 of the compressor 5. For example, when the clearance hole is adapted to the suction pipe 51 of the compressor 5, the annular metal plate 12 contacts the outer wall of the suction pipe 51. When the clearance hole is larger than the suction pipe 51 of the compressor 5, the annular metal plate 12 can contact the liquid separator at the bottom of the suction pipe 51. At the same time, the annular metal plate 12 can be raised and lowered relative to the first support base 11, so as to adapt to compressors 5 of different heights, thereby ensuring that the annular metal plate 12 can be connected to compressors 5 of different models.

[0076] As can be seen, the first docking component 1 of this application docks with the suction pipe 51 of the compressor 5 through the annular metal plate 12. This annular structure of the annular metal plate 12, which can be raised and lowered, can fully dock with the suction pipe 51 of the compressor 5 to be compatible with different models of compressor 5, thereby accelerating the compressor model switching speed during the pressure test and improving the test efficiency.

[0077] See Figure 3 The first docking assembly 1 also includes several first sliding connection structures evenly distributed along the circumference of the annular metal plate 12. The annular metal plate 12 is connected to the lower part of the first support base 11 through the first sliding connection structures, which can be raised and lowered.

[0078] The first sliding connection structure includes a first sliding shaft 14, a first linear bearing 15, and a first limiting block 16. The first linear bearing 15 is mounted on the first support base 11, the first sliding shaft 14 is slidably connected to the first linear bearing 15, the bottom end of the first sliding shaft 14 is insulatedly connected to the annular metal plate 12, and the first limiting block 16 is connected to the top end of the first sliding shaft 14 to prevent the first sliding shaft 14 from falling off the first linear bearing 15.

[0079] In specific implementation, there are two first sliding connection structures, symmetrically arranged on both sides of the annular metal plate 12. The first sliding shaft 14 slides up and down along the first linear bearing 15, thereby causing the annular metal plate 12 to move up and down relative to the first support seat 11. The distance of the annular metal plate 12 moving up and down is related to the length of the first sliding shaft 14. Of course, in order to avoid the annular metal plate 12 getting too close to the first support seat 11, a retaining ring, a snap ring or other limiting structure can be set on the first sliding shaft 14, or the first sliding shaft 14 can be designed as a stepped shaft structure with a smaller top and a larger bottom to control the sliding stroke of the first sliding shaft 14.

[0080] Meanwhile, the bottom end of the first sliding shaft 14 and the annular metal plate 12 can be insulatedly connected by an insulating pad 17. The specific shape and structure of the insulating pad 17 are not limited. In this embodiment, the insulating pad 17 has a two-layer structure, located on the upper and lower surfaces of the annular metal plate 12 respectively. Of course, the insulating pad 17 can also be replaced by an insulating rod, as long as it can achieve the insulation isolation between the first sliding shaft 14 and the annular metal plate 12.

[0081] As can be seen from the above, the first docking component 1 of this application, the annular metal plate 12, achieves lifting and displacement through linear bearings and sliding shafts, with good movement stability, which can ensure that the annular metal plate 12 will not shake during the lifting process, and avoid the annular metal plate 12 colliding with the suction pipe 51 of the compressor 5 during the lifting process, thereby avoiding damage to the suction pipe 51 of the compressor 5.

[0082] See Figure 5 and Figure 6 The second docking assembly 2 includes a second support base 21 and a metal probe 22. The metal probe 22 is vertically and locatingly connected to the second support base 21. The bottom surface of the metal probe 22 is an inclined surface that matches the top surface of the terminal block 52 of the compressor 5. The metal probe 22 is provided with a second wiring part 23. Specifically, the second wiring part 23 is a cable connection hole opened on one side of the metal probe 22. The metal probe 22 is connected to the insulation withstand voltage tester through a cable to form a circuit for power supply.

[0083] Optionally, the metal probe 22 is a brass probe.

[0084] In specific implementation, the second support base 21 is connected to the drive assembly 3. More specifically, the second support base 21 is connected to the insulating base 33 of the drive assembly 3. Of course, the second support base 21 can also be part of the insulating base 33. That is to say, the metal probe 22 is directly connected to the insulating base 33 by vertical displacement.

[0085] During testing, the metal probe 22 can be tested simply by contacting the terminal 52. Since there are multiple terminals 52 of the compressor 5 and they are located on the arc-shaped top surface of the casing, the top surface of the terminal 52 is tilted. The bottom surface of the metal probe 22 is designed to be a slope that matches the top surface of the terminal 52, which can ensure reliable contact between the metal probe 22 and the terminal 52 and prevent abnormal alarms caused by poor contact.

[0086] See Figure 6 The second docking assembly 2 also includes an insulating seat 24, which is vertically and locatingly connected to the second support seat 21. The insulating seat 24 is provided with a vertically extendable elastic element 25, and the metal probe 22 is connected to the bottom of the elastic element 25.

[0087] In practical implementation, the elastic element 25 consists of a guide post that slides vertically on the insulating base 24 and a spring sleeved on the guide post. An anti-loosening bolt is provided at the top of the guide post, and a flange is provided in the middle of the guide post to control the compression stroke of the spring. The bottom end of the guide post is welded and fixed to the metal probe 22. Thus, when the metal probe 22 contacts the terminal 52 of the compressor 5, the elastic element 25 can provide cushioning, preventing a rigid collision between the two.

[0088] Since the bottom of the terminal 52 of the compressor 5 is made of glass, it is easily damaged by pressure. In this application, the connection part of the terminal 52 adopts a spring-type pressure relief method. The metal probe 22 is elastically connected to the insulating base 24. During the process of the metal probe 22 moving down and contacting the terminal 52, the elastic element 25 provides buffering, and the rigid contact between the metal probe 22 and the terminal 52 becomes a flexible contact, thereby avoiding the situation where the metal probe 22 crushes the terminal 52.

[0089] See Figure 5 The second docking assembly 2 also includes a second sliding connection structure. The metal probe 22, the insulating seat 24 and the elastic element 25 are integrated as a whole and are connected to the lower part of the second support seat 21 through the second sliding connection structure.

[0090] The second sliding connection structure includes a second sliding shaft 26, a second linear bearing 27, and a second limiting block 28. The second linear bearing 27 is mounted on the second support base 21, the second sliding shaft 26 is slidably connected to the second linear bearing 27, the bottom end of the second sliding shaft 26 is connected to the insulating base 24, and the second limiting block 28 is connected to the top end of the second sliding shaft 26 to prevent the second sliding shaft 26 from falling off the second linear bearing 27.

[0091] In specific implementation, one side of the insulating seat 24 is connected to the bottom of the second sliding connection structure, so that the metal probe 22, the insulating seat 24 and the elastic element 25 move up and down relative to the second support seat 21 as a whole. The distance of the metal probe 22 moving up and down is related to the length of the second sliding shaft 26. Of course, in order to control the stroke of the metal probe 22, a retaining ring, a snap ring or other limiting structure can be set on the second sliding shaft 26, or the second sliding shaft 26 can be designed as a stepped shaft structure with a smaller top and a larger bottom to control the sliding stroke of the second sliding shaft 26.

[0092] Meanwhile, in order to adjust the distance between the metal probe 22 and the second support base 21, a bolt adjustment assembly 29 is also provided at the bottom end of the second sliding shaft 26. The insulating base 24 is connected to the bottom end of the second sliding shaft 26 through the bolt adjustment assembly 29. Adjusting the distance between the insulating base 24 and the bottom end of the second sliding shaft 26 by adjusting the bolt adjustment assembly 29 is equivalent to adjusting the distance between the metal probe 22 and the second support base 21.

[0093] When dealing with compressors 5 of different specifications, adjusting the distance between the metal probe 22 and the second support 21 can make the annular metal plate 12 contact the suction pipe 51 at the same time as the metal probe 22 contacts the terminal 52. In other words, the docking of the first docking component 1 and the second docking component 2 with the compressor 5 is synchronized, thereby improving the testing efficiency.

[0094] As can be seen from the above, the second docking component 2 of this application, the metal probe 22, achieves lifting and displacement through a linear bearing and a sliding shaft, which has good movement stability and can ensure that the metal probe 22 will not shake during the lifting process, thus ensuring accurate docking between the metal probe 22 and the terminal 52 of the compressor 5.

[0095] use Figures 1 to 7 When the compressor insulation withstand voltage test fixture in the specific embodiment shown performs the compressor insulation withstand voltage test, the specific test process is as follows:

[0096] First, the test fixture is installed above the test line of compressor 5. The first docking assembly 1 and the second docking assembly 2 are electrically connected to the insulation withstand voltage tester. Then, compressor 5 is in position, and driver 31 is activated, driving intermediate plate 34, connecting rod 35, insulating base 33, lifting plate 32, first docking assembly 1 and second docking assembly 2 to press down. When the annular metal plate 12 of the first docking assembly 1 contacts the suction pipe 51 of compressor 5, the first sliding shaft 14 will move upward to ensure that the annular metal plate 12 is in complete contact with the suction pipe 51. At the same time, when the metal probe 22 of the second docking assembly 2 contacts the terminal 52 of compressor 5, the second sliding shaft 26 will also move upward to ensure that the metal probe 22 is in complete contact with the terminal 52. Subsequently, the insulation withstand voltage tester is powered by high voltage to start the test. After the test is completed, driver 3 is activated again, the entire device rises, compressor 5 flows out, and due to gravity, first docking assembly 1 and second docking assembly 2 return to their original positions.

[0097] As can be seen from the above description, the compressor insulation withstand voltage test fixture of this application, by changing the connection of the test connector from the compressor exhaust pipe to the compressor suction pipe, allows the two test connectors to maintain a sufficient distance. This facilitates the connection between the test connector and the compressor, and prevents arcing caused by the test connectors being too close. This solves the problem of poor contact and high alarm rates caused by arcing in the original industry test mode. At the same time, the first docking component connected to the suction pipe adopts a ring structure that can be raised and lowered, which can fully dock with the suction pipe to be compatible with different models of compressors. This can speed up the compressor model switching speed during withstand voltage testing, thus making the compressor insulation withstand voltage test fixture of this application have the characteristics of low false alarm rate and high testing efficiency.

[0098] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0099] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0100] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A compressor insulation withstand voltage test fixture, characterized in that, It includes a first docking component (1) and a second docking component (2); The first docking component (1) is connected to the suction pipe (51) of the compressor (5), and the second docking component (2) is connected to the terminal (52) of the compressor (5) to perform an insulation withstand voltage test on the compressor (5); The terminal block (52) is located on the housing of the compressor (5), and the suction pipe (51) is located on the liquid separator on the outside of the housing. The first docking assembly (1) includes a first support base (11) and an annular metal plate (12); the annular metal plate (12) is vertically and displacementally connected to the first support base (11), the annular metal plate (12) has a clearance hole in the center for the air intake pipe (51) to pass through, and a first wiring part (13) is provided on the annular metal plate (12); the second docking assembly (2) includes a second support base (21) and a metal probe (22); the metal probe (22) is vertically and displacementally connected to the second support base (21), the bottom surface of the metal probe (22) is an inclined surface adapted to the top surface of the terminal block (52), and a second wiring part (23) is provided on the metal probe (22).

2. The compressor insulation withstand voltage test fixture according to claim 1, characterized in that, The first docking assembly (1) further includes a plurality of first sliding connection structures evenly distributed along the circumference of the annular metal plate (12); The first sliding connection structure includes a first sliding shaft (14), a first linear bearing (15), and a first limiting block (16). The first linear bearing (15) is mounted on the first support base (11), the first sliding shaft (14) is slidably connected to the first linear bearing (15), the bottom end of the first sliding shaft (14) is insulated from the annular metal plate (12), and the first limiting block (16) is connected to the top end of the first sliding shaft (14) to prevent the first sliding shaft (14) from falling off the first linear bearing (15).

3. The compressor insulation withstand voltage test fixture according to claim 1, characterized in that, The second docking assembly (2) also includes an insulating base (24); The insulating base (24) is vertically and movablely connected to the second support base (21). The insulating base (24) is provided with a vertically extendable elastic element (25), and the metal probe (22) is connected to the bottom of the elastic element (25).

4. The compressor insulation withstand voltage test fixture according to claim 3, characterized in that, The second docking component (2) further includes a second sliding connection structure; The second sliding connection structure includes a second sliding shaft (26), a second linear bearing (27), and a second limiting block (28); The second linear bearing (27) is mounted on the second support seat (21), the second sliding shaft (26) is slidably connected to the second linear bearing (27), the bottom end of the second sliding shaft (26) is connected to the insulating seat (24), and the second limiting block (28) is connected to the top end of the second sliding shaft (26) to prevent the second sliding shaft (26) from falling off the second linear bearing (27).

5. The compressor insulation withstand voltage test fixture according to claim 1, characterized in that, It also includes a drive component (3), to which both the first docking component (1) and the second docking component (2) are connected; The drive assembly (3) is used to drive the first docking assembly (1) to connect with the suction pipe (51) of the compressor (5), and the drive assembly (3) is also used to drive the second docking assembly (2) to connect with the terminal (52) of the compressor (5).

6. The compressor insulation withstand voltage test fixture according to claim 5, characterized in that, The drive assembly (3) includes a driver (31), a lifting plate (32), and an insulating base (33). The power output end of the driver (31) is connected to the lifting plate (32) and is used to drive the lifting plate (32) to move up and down. The insulating base (33) is connected to the lifting plate (32), and the first docking assembly (1) and the second docking assembly (2) are respectively connected to the insulating base (33).

7. The compressor insulation withstand voltage test fixture according to claim 6, characterized in that, The drive assembly (3) also includes an intermediate plate (34) and several connecting rods (35). The power output end of the driver (31) is connected to the intermediate plate (34) and is used to drive the intermediate plate (34) to move up and down. A plurality of the connecting rods (35) are spaced apart between the intermediate plate (34) and the lifting plate (32), the intermediate plate (34) is connected to the top end of the connecting rods (35), and the lifting plate (32) is connected to the bottom end of the connecting rods (35).

8. The compressor insulation withstand voltage test fixture according to claim 5, characterized in that, There are multiple first docking components (1) and second docking components (2), and they are connected in pairs to the drive component (3).

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