Auxiliary testing device

Abstract

The embodiment of the invention relates to the technical field of insulation and voltage resistance detection auxiliary equipment, and provides an auxiliary testing device which comprises a plugging base, an insulating sleeve and a switch assembly. The plugging base comprises an insulating base body and a conductive platform, and a plugging hole is formed in the conductive platform; the insulating sleeve is sleeved on the conductive platform so as to form an accommodating space, the accommodating space is filled with a flowing conductive medium, an object to be tested is arranged in the conductive medium, and a power supply end is inserted into the insertion hole; the switch assembly is provided with a first static contact end, a second static contact end and a movable contact end, the first static contact end is electrically connected with the data end of the to-be-tested object, the second static contact end is electrically connected with the conductive platform, and the movable contact end is electrically connected to the power supply end through the insulation and voltage resistance tester. In the whole test process, the switching of the insulation and voltage resistance test state is changed only by adjusting the positions of the movable contact end and the corresponding static contact end, so that the test accuracy is greatly improved; and the coating effect of the conductive medium with flowability is better, and more time is saved.

Description

Technical Field

[0001] This application relates to the technical field of auxiliary equipment for insulation withstand voltage testing, and particularly relates to an auxiliary testing device. Background Art

[0002] The so-called insulation withstand voltage test is used to test the insulation performance of voltage equipment or materials under high voltage. Usually, in the test, a high-voltage electric field is applied to observe whether the object under test can maintain good insulation under high voltage and whether there is a leakage phenomenon.

[0003] The charger of a mobile terminal needs to undergo an insulation withstand voltage test before leaving the factory. Currently, the insulation withstand voltage test process for the input to output and the input to the housing of the charger of a mobile terminal is as follows: Short-circuit the AC pins of the input and the output data cable of the charger respectively, and then connect them to the positive and negative poles of the insulation tester respectively. And wrap the entire charger with copper foil, then short-circuit the AC pins of the charger, and then connect the AC pins and the copper foil to the positive and negative poles of the insulation withstand voltage tester respectively.

[0004] However, there are corresponding problems in the above test process: In the insulation withstand voltage test process of the input to output of the charger, it is often necessary to manually switch and contact the clamping position, which poses a certain safety hazard; in the insulation withstand voltage test process of the input to the housing of the charger, the shape of the charger is irregular, and the process of wrapping with copper foil is time-consuming and laborious, and the wrapping standard is difficult to unify. Summary of the Invention

[0005] The embodiments of this application provide an auxiliary testing device, which can improve the technical problem of the test accuracy of the charger caused by human factors and non-standard factors in the insulation withstand voltage test process.

[0006] To achieve the above object, the embodiments of this application adopt the following technical solutions:

[0007] This application provides an auxiliary testing device for assisting an insulation withstand voltage tester to perform an insulation withstand voltage test on an object under test. The object under test has a power supply end and a data end, and includes:

[0008] A plug-in base, which includes an insulating seat body and a conductive platform provided on the insulating seat body. The conductive platform is provided with plug holes.

[0009] An insulating sleeve, which is sleeved on the conductive platform to enclose a receiving space. The receiving space is filled with a fluid conductive medium. The object under test is placed in the conductive medium and the power supply end is plugged into the plug hole.

[0010] A switch assembly having a first stationary contact, a second stationary contact, and a movable contact. The movable contact can selectively connect to the first stationary contact or the second stationary contact. The first stationary contact is electrically connected to the data terminal of the object to be tested, the second stationary contact is electrically connected to a conductive platform, and the movable contact is electrically connected to a power supply terminal through an insulation withstanding voltage tester.

[0011] In the technical solution described above in the embodiments of the present application, it has at least the following technical effects or advantages:

[0012] The auxiliary test device provided in the embodiments of the present application is used to assist an insulation withstanding voltage tester in performing an insulation withstanding voltage test on an object to be tested. The auxiliary test device includes a plug-in base, an insulating sleeve, and a switch assembly. The specific test process is as follows: Insert the power supply terminal of the object to be tested into the plug-in hole, and pour a conductive medium into the accommodating space so that the conductive medium covers the object to be tested. At the same time, electrically connect the data terminal of the object to be tested to the first stationary contact of the switch assembly. And after the plugging action is completed, the power supply terminal of the object to be tested and the movable contact of the switch assembly are respectively electrically connected to the positive and negative electrodes of the insulation withstanding voltage tester; the conductive platform is electrically connected to the second stationary contact of the switch assembly. In this way, when the movable contact is electrically connected to the first stationary contact, the insulation withstanding voltage test of the input to the output of the object to be tested can be realized; and when the movable contact is electrically connected to the second stationary contact, the insulation withstanding voltage test of the input to the outer shell of the object to be tested can be realized. During the entire test process, only by switching the position of the movable contact of the switch assembly with the corresponding stationary contact, the switching between the insulation withstanding voltage test of the input to the output of the object to be tested and the insulation withstanding voltage test of the input to the outer shell can be realized. Compared with manually adjusting different clamping positions of the object to be tested, the test accuracy is greatly improved; and compared with covering the outer shell of the object to be tested with copper foil, using a conductive medium with fluidity to cover the outer shell of the object to be tested has a better covering effect and also saves time more.

[0013] In some embodiments, the conductive medium includes metal microbeads.

[0014] The metal microbead conductive medium is a metal sphere with a smaller diameter. Multiple metal spheres can form a conductive medium with fluidity to cover the outer shell of the object to be tested.

[0015] In some embodiments, the conductive platform has a supporting surface facing away from the insulating seat body. The supporting surface and the inner wall of the insulating sleeve enclose an accommodating space. And the supporting surface plays a corresponding supporting role for the conductive medium. And a guiding structure for the flow of the conductive medium is formed on the supporting surface. The setting of the guiding structure facilitates the flow of the conductive medium to reduce the probability of local aggregation of the conductive medium on the supporting surface and the uneven distribution of the conductive medium.

[0016] In some embodiments, the guiding structure includes an inclined surface formed on the support surface, and the conductive medium flows on the inclined surface, facilitating the collection of the conductive medium, or facilitating the dispersion of the conductive medium within the insulating sleeve.

[0017] In some embodiments, the angle α between the inclined surface and the horizontal plane is 10° to 15°. It can be understood that this angle α refers to the range of the angle α between the plane where the inclined surface is located and the horizontal plane being 10° to 15°. That is, the value range of this angle α can be 10°, 11°, 12°, 13°, 14°, 15°, etc.

[0018] In some embodiments, an insulating layer is provided at the insertion hole of the conductive platform, and the end face of the insulating layer is higher than the end face of the conductive platform, which enables the power supply end of the object to be tested to extend into the insertion hole as much as possible, and the outer shell of the object to be tested is in contact with the conductive platform as much as possible, so as to reduce the probability of the power supply end of the object to be tested contacting the conductive medium.

[0019] In some embodiments, the height difference h between the end face of the insulating layer and the end face of the conductive platform is greater than or equal to 4 mm. In this way, the insulating layer of this thickness can improve the adaptability and universality with the power supply end of the object to be tested.

[0020] In some embodiments, the height H of the insulating seat body is 10 mm to 15 mm. It can be understood that the height H of the insulating seat body can be 10 mm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, etc.

[0021] In some embodiments, both the insulating seat body and the conductive platform are columnar structures, and the outer diameter of the insulating seat body is larger than the outer diameter of the conductive platform. In this way, it is beneficial for the insulating sleeve to be sleeved on the conductive platform.

[0022] In some embodiments, the difference m between the outer diameter of the insulating seat body and the outer diameter of the conductive platform is 10 mm to 12 mm. It can be understood that the difference between the two can be 10 mm, 11 cm, 12 cm, etc.

[0023] In some embodiments, the auxiliary test device further includes a vibration device, and the vibration device is used to vibrate the insulating seat body. It can be understood that by vibrating the insulating seat body, the conductive medium in the accommodating space can be more tightly wrapped around the object to be tested, thereby improving the wrapping adaptability of the guiding medium to the object to be tested.

[0024] In some embodiments, a window is opened on the insulating sleeve, and this window is used for the conductive medium to flow out of the accommodating space, facilitating the transfer of the conductive medium.

[0025] In some embodiments, the auxiliary test device further includes a housing device, the housing device includes a first housing mechanism, the first housing mechanism is in communication with the window, and the first housing mechanism of the housing device is used to collect the conductive medium. Moreover, the conductive medium in the accommodation space flows out from the window and into the first housing mechanism.

[0026] In some embodiments, the housing device further includes a second housing mechanism, the second housing mechanism is in communication with the open end of the insulating sleeve. Understandably, the second housing mechanism is used to provide the conductive medium to the open end of the insulating sleeve, that is, to supplement the conductive medium in the accommodation space by using the second housing mechanism.

[0027] In some embodiments, the housing device further includes a transmission mechanism, the transmission mechanism is used to realize the transmission of the conductive medium between the first housing mechanism and the second housing mechanism. Understandably, the transmission mechanism includes but is not limited to a conveyor belt, a transmission chain, etc., and the transmission mechanism is used to realize the transfer of the conductive medium between the first housing mechanism and the second housing mechanism to quickly supplement the conductive medium in the accommodation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A sectional view of the auxiliary test device provided by some embodiments of the present application;

[0029] Figure 2 A sectional view of the auxiliary test device (filled with conductive medium) provided by some embodiments of the present application;

[0030] Figure 3 A perspective view of the auxiliary test device provided by some embodiments of the present application and a sectional view of the auxiliary test device (only with a plug-in base);

[0031] Figure 4 A top view of the auxiliary test device (only with a plug-in base) provided by some embodiments of the present application;

[0032] Figure 5 A structural schematic diagram of the auxiliary test device, the object to be tested, and the insulation withstand voltage tester provided by some embodiments of the present application;

[0033] Figure 6 A structural schematic diagram of the auxiliary test device (with a vibration device added), the object to be tested, and the insulation withstand voltage tester provided by some embodiments of the present application;

[0034] Figure 7 A structural schematic diagram of the auxiliary test device (with a vibration device and a housing device added), the object to be tested, and the insulation withstand voltage tester provided by some embodiments of the present application.

[0035] Among them, the reference numerals in the drawings:

[0036] 1000. Insulation Withstand Voltage Tester;

[0037] 100. Auxiliary Testing Device

[0038] 10. Plug-in Base; 11. Insulating Base Body; 12. Conductive Platform; 10a. Plug-in Hole; 111. Support Surface; 112. Guide Structure; 13 Insulation Layer;

[0039] 20. Insulating Sleeve; 21. Conductive Medium; 20a. Window;

[0040] 30. Switch Assembly; 31. First Static Contact Terminal; 32. Second Static Contact Terminal; 33. Moving Contact Terminal;

[0041] 40. Vibration Device

[0042] 50. Containment Device; 51. First Containment Mechanism; 52. Second Containment Mechanism; 53. Transmission Mechanism;

[0043] 200. Object to be Tested; 201. Power Supply Terminal; 202. Data Terminal. Detailed Embodiment

[0044] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, but should not be construed as limiting the present application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and do not limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0046] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting this application.

[0047] The terms "first", "second", "third", "fourth", "fifth", "sixth", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. For example, the first deformation space and the second deformation space are only used to distinguish different deformation spaces, and their order is not limited. The first deformation space can also be named as the second deformation space, and the second deformation space can also be named as the first deformation space without departing from the scope of the various described embodiments. In addition, the terms "first", "second", etc. do not limit the indicated features to be necessarily different.

[0048] In this application, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0050] It should be noted that, in this application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in this application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a specific way.

[0051] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0052] The insulation withstand voltage test is used to test the insulation performance of voltage equipment or materials under high voltage. Usually, during the test, a high voltage electric field is applied to observe whether the object being tested can maintain a good insulation state under high voltage and whether there is leakage.

[0053] Mobile terminal chargers are required to undergo insulation withstand voltage tests before leaving the factory, such as mobile phone chargers, tablet computer chargers, and laptop chargers.

[0054] When the above charger is subjected to an insulation withstand voltage test, two insulation withstand voltage tests are required for the input to output and the input to the outer shell of the charger. Among them, the input of the charger refers to the AC plug of the charger, and the output of the charger refers to the output data terminal of the charger, which is the end for plugging in the data cable. Generally, the process of the insulation withstand voltage test for the input to output of the charger is as follows: short-circuit the AC plug of the input and the output data cable of the charger respectively, and then connect them to the positive and negative electrodes of the insulation tester respectively; the process of the insulation withstand voltage test for the input to the outer shell of the charger is as follows: wrap the entire charger with copper foil, then short-circuit the AC plug of the charger, and then connect the AC plug and the copper foil to the positive and negative electrodes of the insulation withstand voltage tester respectively. Since only one insulation tester is usually equipped for the insulation withstand voltage test of the same charger, during the insulation withstand voltage test at different positions of the same charger, it is necessary to manually switch the clamping positions of each electrical connection point, which poses risks of connection failure and leakage at each electrical connection point. Moreover, the shape of the charger is mostly irregular, and it is time-consuming and laborious to cover its exterior by wrapping copper foil, and it is difficult to unify the wrapping standards.

[0055] In view of this, the embodiment of the present application provides an auxiliary test device for assisting an insulation withstand voltage tester to perform an insulation withstand voltage test on a test object. Specifically, plugging holes are provided on the conductive platform of the plugging base for the power supply end of the object to be tested to be plugged in. The first static contact end of the switch assembly is electrically connected to the data end of the test object, the second static contact end is electrically connected to the conductive platform, the output negative electrode of the insulation withstand voltage test is connected to the moving contact end of the switch assembly, and the output positive electrode of the insulation withstand voltage tester is connected to the power supply end of the object to be tested. In this way, when the moving contact end is electrically connected to the first static contact end, the insulation withstand voltage test for the input to output of the object to be tested can be realized; when the moving contact end is electrically connected to the second static contact end, the insulation withstand voltage test for the input to the outer shell of the object to be tested can be realized. During the entire test process, only by switching the positions of the moving contact end and the corresponding static contact end of the switch assembly, the switching between the insulation withstand voltage test for the input to output and the insulation withstand voltage test for the input to the outer shell of the object to be tested can be realized. Compared with manually adjusting different clamping positions of the object to be tested, the test accuracy is greatly improved; and compared with wrapping copper foil around the outer shell of the object to be tested, covering the outer shell of the object to be tested with a conductive medium with fluidity has a better wrapping effect and also saves more time.

[0056] The following is illustrated by specific embodiments.

[0057] Please refer to Figures 1 to 5 , Figure 1 which is a sectional view of the auxiliary test device provided by the embodiment of the present application; Figure 2 which is a sectional view of the auxiliary test device (filled with a conductive medium) provided by the embodiment of the present application; Figure 3The sectional view of the plug-in base of the auxiliary test device provided by the embodiment of the present application and the three-dimensional view of the object to be tested Figure 4 The top view of the plug-in base of the auxiliary test device provided by the embodiment of the present application Figure 5 The structural schematic diagram of the auxiliary test device, the object to be tested, and the insulation withstand voltage tester provided by the embodiment of the present application

[0058] The auxiliary test device 100 provided by the embodiment of the present application is mainly used to assist the insulation withstand voltage tester 1000 to perform insulation withstand voltage testing on the object to be tested 200. The object to be tested 200 has a power supply terminal 201 and a data terminal 202

[0059] The auxiliary test device 100 includes a plug-in base 10, an insulating sleeve 20, and a switch assembly 30

[0060] Among them, the plug-in base 10 is used for the power supply terminal 201 of the object to be tested 200 to be plugged in

[0061] Specifically, the plug-in base 10 includes an insulating seat body 11 and a conductive platform 12 provided on the insulating seat body 11

[0062] During the test, the insulating seat body 11 is in direct contact with the operating table surface, playing a corresponding insulating role. The insulating seat body 11 can be made entirely of insulating materials. For example, the insulating seat body 11 is a whole piece of insulating rubber, insulating plastic, or insulating colloid, etc. Or, the insulating seat body 11 can also be coated with an insulating layer on the outer surface. For example, a glue layer is coated on the outer surface of the insulating seat body 11, or an insulating sleeve is sleeved, etc

[0063] The conductive platform 12 is formed at one end of the insulating seat body 11 facing away from the operating table surface, so that the conductive platform 12 is not in direct contact with the operating table surface. The conductive platform 12 should have overall conductive characteristics, that is, the conductive platform 12 is made of conductive materials. For example, the conductive platform 12 can be a whole piece of conductive metal, graphite, etc. Or, the conductive platform 12 can also be coated with a conductive coating on the outer surface. For example, a metal layer or a graphite layer is coated on the outer surface of the conductive platform 12

[0064] The connection method between the insulating seat body 11 and the conductive platform 12 includes but is not limited to bonding, plugging, clamping, threaded connection, welding, etc

[0065] The plugging hole 10a is opened on the conductive platform 12. The plugging hole 10a is for the power supply terminal 201 of the object to be tested 200 to be plugged in. And, according to actual needs, the plugging hole 10a can be a two-hole plugging hole 10a, or it can also be a three-hole plugging hole 10a, or even a plugging hole 10a with more holes

[0066] The setting position of the insertion hole 10a can be located anywhere on the conductive platform 12.

[0067] Optionally, the insertion hole 10a is provided on the end face of the conductive platform 12 facing away from the insulating housing 11. In this way, while meeting the insertion requirements, it is also convenient for the object to be tested 200 to be stably placed on the conductive platform 12.

[0068] Of course, the insertion hole 10a can also be provided on the peripheral side wall where the conductive platform 12 is connected to the insulating housing 11.

[0069] The insulating sleeve 20 is sleeved on the conductive platform 12 to enclose a receiving space, and the receiving space is filled with a fluid conductive medium 21. The object to be tested 200 is placed in the conductive medium 21 and the power supply end 201 is inserted into the insertion hole 10a.

[0070] It can be understood that the insulating sleeve 20 has a tubular structure with two open ends. One of the open ends is sleeved on the conductive platform 12. Therefore, the outer surface of the conductive platform 12 and the inner wall of the insulating sleeve 20 enclose a receiving space with an opening. Similarly, the insulating sleeve 20 can be integrally made of an insulating material. For example, the insulating sleeve 20 is a whole piece of insulating rubber, insulating plastic or insulating colloid, etc. Or, the insulating sleeve 20 can also be coated with an insulating layer on the outer surface. For example, a glue layer is coated on the outer surface of the insulating sleeve 20, or an insulating sleeve is sleeved.

[0071] The fact that the conductive medium 21 has fluidity means that the conductive medium 21 can fill and adapt to the internal space of the container that holds the conductive medium 21, that is, the conductive medium 21 with fluidity is similar to a fluid. For example, the conductive medium 21 consists of a relatively large number of conductive micro-bead components. The diameter of the conductive micro-beads is small and they have conductive properties. For example, the conductive micro-beads are copper micro-beads, stainless steel micro-beads, etc. Or, the conductive medium 21 is powdered graphite. Therefore, on the basis of meeting the conductive requirements, the conductive medium 21 also has fluidity. In this way, when the object to be tested 200 is placed in the receiving space and the power supply end 201 of the object to be tested 200 is inserted into the insertion hole 10a, the conductive medium 21 can cover the outer surface of the object to be tested 200, which is equivalent to covering the outer surface of the object to be tested 200 with copper foil. However, the conductive medium 21 has corresponding fluidity, so that the whole wrapping process is more concise and simple, and the adaptability to the object to be tested 200 with different outer contours is higher.

[0072] The switch assembly 30 is used to realize the switching of corresponding test steps during the insulation withstand voltage test. For example, the object to be tested 200 needs to perform an insulation withstand voltage test from input to output, and also needs to perform an insulation withstand voltage test from input to the shell. In this way, through the switch assembly 30, quick switching can be carried out between the two groups of tests, improving the test efficiency.

[0073] Specifically, the switch assembly 30 has a first stationary contact terminal 31, a second stationary contact terminal 32 and a moving contact terminal 33. It can be understood that the stationary contact terminal is a stationary connection terminal, and the moving contact terminal 33 is a connection terminal that is linked with the stationary contact terminal, that is, according to the actual use requirements of the scene, the moving contact terminal 33 can be selectively connected to the first stationary contact terminal 31 or the second stationary contact terminal 32.

[0074] The first static contact terminal 31 is electrically connected to the data terminal 202 of the object to be tested 200 , and the second static contact terminal 32 is electrically connected to the conductive platform 12 .

[0075] And, the moving contact terminal 33 is electrically connected to the power supply terminal 201 through the insulation withstand voltage tester 1000. Here, the output negative pole of the insulation withstand voltage tester 1000 is connected to the moving contact terminal 33, and the output positive pole of the insulation withstand voltage tester 1000 is connected to the power supply terminal 201 of the object to be tested 200. Since the power supply terminal 201 is plugged into the plug hole 10a on the conductive platform 12, a socket adapted to the plug hole 10a can be provided in the plug base 10, then, the output positive pole of the insulation withstand voltage tester 1000 is connected to the socket through a wire, so that once the power supply terminal 201 of the object to be tested 200 is plugged into the plug hole 10a, it is electrically connected to the insulation withstand voltage tester.

[0076] In this way, when the moving contact terminal 33 is electrically connected to the first static contact terminal 31, the power supply terminal 201 and the data terminal 202 of the object to be tested 200 are respectively connected to the output positive pole and the output negative pole of the insulation withstand voltage tester 1000. At this time, an insulation withstand voltage test of the input to the output of the object to be tested 200 is performed; and, when the moving contact terminal 33 is electrically connected to the second static terminal, the power supply terminal 201 of the object to be tested 200 and the conductive medium 21 wrapped in the object to be tested 200 are respectively connected to the output positive pole and the output negative pole of the insulation withstand voltage tester 1000. At this time, an insulation withstand voltage test of the input to the shell of the object to be tested 200 is performed.

[0077] The auxiliary test device 100 provided by the embodiments of the present application is used to assist the insulation withstand voltage tester 1000 to perform insulation withstand voltage testing on the object 200 to be tested. The auxiliary test device 100 includes a plug-in base 10, an insulating sleeve 20, and a switch assembly 30. The specific testing process is as follows: Insert the power supply terminal 201 of the object 200 to be tested into the insertion hole 10a, and pour the conductive medium 21 into the accommodating space so that the conductive medium 21 covers the object 200 to be tested. At the same time, electrically connect the data terminal 202 of the object 200 to be tested to the first static contact terminal 31 of the switch assembly 30. And after the insertion action is completed, the power supply terminal 201 of the object 200 to be tested and the moving contact terminal 33 of the switch assembly 30 are respectively electrically connected to the positive and negative electrodes of the insulation withstand voltage tester 1000; the conductive platform 12 is electrically connected to the second static contact terminal 32 of the switch assembly. In this way, when the moving contact terminal 33 is electrically connected to the first static contact terminal 31, the insulation withstand voltage test of the input to the output of the object 200 to be tested can be realized; and when the moving contact terminal 33 is electrically connected to the second static contact terminal 32, the insulation withstand voltage test of the input to the outer shell of the object 200 to be tested can be realized. During the entire testing process, only by switching the position of the moving contact terminal 33 of the switch assembly 30 with the corresponding static contact terminal, the switching between the insulation withstand voltage test of the input to the output of the object 200 to be tested and the insulation withstand voltage test of the input to the outer shell can be realized. Compared with manually adjusting different clamping positions of the object 200 to be tested, the testing accuracy is greatly improved; and compared with covering the outer shell of the object 200 to be tested with copper foil, using the conductive medium 21 with fluidity to cover the outer shell of the object 200 to be tested has a better covering effect and also saves time more.

[0078] In some embodiments, the conductive medium 21 includes metal microbeads.

[0079] It can be understood that in order to ensure the fluidity of the conductive medium 21, the conductive medium 21 of the present application includes metal microbeads. The metal microbeads are metal spheres or granular bodies with very small particle sizes. For example, the particle size range of the metal microbeads can be 0.1 mm to 0.5 mm. And the particle size of the metal microbeads can also be adjusted according to the detection requirements of the cracks on the outer shell of the object 200 to be tested, so as to make the conductive medium 21 adapt to different crack sizes on the outer shell of the object 200 to be tested.

[0080] Optionally, when the particle size of the metal microbeads is 0.3 mm, the fluidity of the conductive medium 21 formed by the metal microbeads is better, and it adapts to most of the crack sizes on the outer shell of the object 200 to be tested.

[0081] In other embodiments, the conductive medium 21 includes conductive powder, and the conductive powder can be metal powder, graphite powder, etc. Here, the particle size of the conductive powder is smaller and it is easier to fill the cracks on the outer shell of the object 200 to be tested.

[0082] Of course, the conductive medium 21 may also include metal microbeads and conductive powder, that is, the conductive medium 21 is a mixture of two conductive bodies with different particle sizes.

[0083] Please refer to Figure 3 , in some embodiments, the conductive platform 12 has a support surface 111 facing away from the insulating seat body 11, and a guiding structure 112 for the flow of the conductive medium 21 is formed on the support surface 111.

[0084] Understandably, the support surface 111 is used for placing the object to be tested 200 and supporting the object to be tested 200.

[0085] Optionally, the support surface 111 can be a flat support surface 111, an inclined support surface 111, a curved support surface 111, etc.

[0086] The guiding structure 112 is used to guide the conductive medium 21 with fluidity, facilitating the flow of the conductive medium 21 in the accommodation space and on the support surface 111.

[0087] Exemplarily, the guiding structure 112 includes a guiding groove formed on the support surface 111, and the extending direction of the groove of the guiding groove is a direction radially pointing from the insertion hole 10a to the inner wall of the insulating sleeve 20. When the power supply end 201 of the object to be tested 200 is inserted into the insertion hole 10a, the conductive medium 21 can be preferentially distributed between the outer shell side wall of the object to be tested 200 and the inner wall of the insulating sleeve 20.

[0088] Exemplarily, the guiding structure 112 includes guiding ribs formed on the support surface 111, and the extending direction of the guiding ribs is a direction radially pointing from the insertion hole 10a to the inner wall of the insulating sleeve 20. Similarly, when the power supply end 201 of the object to be tested 200 is inserted into the insertion hole 10a, the conductive medium 21 can be preferentially distributed between the outer shell side wall of the object to be tested 200 and the inner wall of the insulating sleeve 20.

[0089] Exemplarily, the guiding structure 112 includes an inclined surface formed on the support surface 111, and the inclined direction of the inclined surface is a direction radially pointing from the insertion hole 10a to the inner wall of the insulating sleeve 20, so that the cross-section of the conductive platform 12 forms a trapezoid or a shape similar to a trapezoid. Similarly, when the power supply end 201 of the object to be tested 200 is inserted into the insertion hole 10a, the conductive medium 21 can be preferentially distributed between the outer shell side wall of the object to be tested 200 and the inner wall of the insulating sleeve 20.

[0090] Please refer to Figure 3 , in some embodiments, the guiding structure 112 includes an inclined surface formed on the support surface 111.

[0091] Understandably, the inclination distribution of the inclined surface may not be limited.

[0092] Exemplarily, as Figure 3 shown, the inclined surface may be formed by inclining from the edge of the conductive platform 12 towards the middle of the conductive platform 12, that is, the middle of the conductive platform 12 is higher than the edge of the conductive platform 12, so that the cross-sectional shape of the conductive platform 12 is conical or similar to a cone. In this way, it is convenient for the conductive medium 21 that first enters the accommodating space to flow towards the inner wall of the insulating sleeve 20. At the same time, when the insulating sleeve 20 is removed from the conductive platform 12, the conductive medium 21 can slide off the conductive platform 12 along the inclined surface, which is also convenient for collecting the conductive medium 21.

[0093] Exemplarily, the inclined surface may be formed by inclining from the middle of the conductive platform 12 towards the edge of the conductive platform 12, that is, the middle of the conductive platform 12 is lower than the edge of the conductive platform 12, so that the cross-sectional shape of the conductive platform 12 is funnel-shaped or similar to a funnel shape. In this way, it is convenient for the conductive medium 21 that first enters the accommodating space to converge on the conductive platform 12.

[0094] Exemplarily, the inclined surface may be formed by inclining from one side of the guiding platform to the other side, that is, the overall shape of the conductive platform 12 shows one side being high and the other side being low. Similarly, when the insulating sleeve 20 is removed from the conductive platform 12, the conductive medium 21 can slide off the conductive platform 12 along the inclined surface, which is also convenient for collecting the conductive medium 21.

[0095] Please refer to Figure 3 , in some embodiments, the included angle a between the inclined surface and the horizontal plane is 10° - 15°.

[0096] Understandably, the included angle a between the inclined surface and the horizontal plane can be 10°, 11°, 12°, 13°, 14°, 15°, etc. And according to actual usage requirements, the slope of the inclined surface can also be adjusted.

[0097] Exemplarily, as Figure 1 shown, the inclined surface may be formed by inclining from the edge of the conductive platform 12 towards the middle of the conductive platform 12, that is, the middle of the conductive platform 12 is higher than the edge of the conductive platform 12, so that the cross-sectional shape of the conductive platform 12 is conical or similar to a cone. Then, the included angle a between this inclined surface and the horizontal plane can be between 10° and 15°.

[0098] Please refer to Figure 3 , in some embodiments, an insulating layer 13 is provided at the insertion hole 10a of the conductive platform 12, and the end face of the insulating layer 13 is higher than the end face of the conductive platform 12.

[0099] Understandably, the insulating layer 13 is used to insulate the power supply terminal 201 of the object under test 200, so that the power supply terminal 201 of the object under test 200 can extend into the insertion hole 10a as much as possible, and the outer shell of the object under test 200 is kept in contact with the conductive platform 12 as much as possible, so as to reduce the probability of the power supply terminal 201 of the object under test 200 contacting the conductive medium 21.

[0100] Here, the end face of the conductive platform 12 refers to the end face of the conductive platform 12 where the insertion hole 10a is provided, and the insulating layer 13 is arranged in the insertion hole 10a and extends outside the insertion hole 10a, so that the exposed end face of the insulating layer 13 is higher than the end face of the conductive platform 12.

[0101] The insulating material of the insulating layer 13 includes but is not limited to rubber, silica gel, resin, plastic, etc.

[0102] Please refer to Figure 3 , in some embodiments, the height difference h between the end face of the insulating layer 13 and the end face of the conductive platform 12 is greater than or equal to 4 mm.

[0103] Understandably, the minimum height difference h between the end face of the insulating layer 13 and the end face of the conductive platform 12 is 4 mm, that is, the insulating layer 13 with this thickness can improve the adaptability and versatility with the power supply terminal 201 of the object under test 200.

[0104] Of course, according to actual use requirements, the height difference h between the two can be greater than 4 mm. For example, it can also be 5 mm, 6 mm, 7 mm, 8 mm, etc.

[0105] Please refer to Figure 3 , in some embodiments, the height H of the insulating seat body 11 is 10 mm to 15 mm.

[0106] The insulating seat body 11 is the part where the plug-in base 10 is in direct contact with the operation platform and other working platforms, and is used to raise the installation position of the conductive platform 12 and the operation platform. Here, the insulating seat body 11 can be a columnar structure or a block structure. The height H of the insulating seat body 11 can be 10 mm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, etc.

[0107] Please refer to Figure 3 and Figure 4 , in some embodiments, both the insulating seat body 11 and the conductive platform 12 are columnar structures, and the outer diameter of the insulating seat body 11 is greater than the outer diameter of the conductive platform 12.

[0108] It can be understood that the columnar conductive platform 12 is easy to adapt to the insulating sleeve 20, that is, the insulating sleeve 20 can be sleeved on the conductive platform 12 and abut against the insulating seat 11. In this way, the connection stability between the insulating sleeve 20 and the conductive platform 12 is improved, and at the same time, the disassembly and assembly of the insulating sleeve 20 is also convenient.

[0109] Please refer to Figure 4 In some embodiments, the difference m between the outer diameter of the insulating base 11 and the outer diameter of the conductive platform 12 is 10 mm to 12 mm.

[0110] It is understandable that the difference m between the outer diameter of the insulating base 11 and the outer diameter of the conductive platform 12 can be 10 mm, 11 cm, 12 cm, etc. Of course, the difference between the two can also be a decimal, for example, 10.1 mm, 11.5 mm, 11.9 mm, etc.

[0111] Please refer to Figure 6 In some embodiments, the auxiliary testing device 100 further includes a vibration device 40 , and the vibration device 40 is used to vibrate the insulating seat body 11 .

[0112] It can be understood that the vibration device 40 is used to vibrate the insulating base 11 so that the conductive medium 21 in the accommodating space can be more tightly wrapped outside the object to be tested 200, thereby improving the wrapping adaptability of the guide medium to the object to be tested 200.

[0113] The vibration device 40 includes, but is not limited to, an electric vibrator, a vibration motor, a vibration platform, and a sonic vibrator.

[0114] For example, an electric vibrator includes a bracket, a motor mounted on the bracket, an eccentric mass block connected to the output end of the motor, and a vibrating component connected to the eccentric mass block. Among them, the motor is the main power source of the electric vibrator, and a three-phase motor or a single-phase motor is usually used. The eccentric mass block is an important component in the electric vibrator, usually a metal disc or box fixed on the output shaft of the motor. When the motor is running, the eccentric mass block generates centrifugal force, thereby causing the entire vibrator to vibrate. The vibrating component refers to a component that directly contacts the vibrated object during the vibration process. Usually, the vibrating component can be a vibrating screen, a vibrating table, and a vibrating conveyor. The bracket is used to fix the above components.

[0115] The vibration device 40 can be arranged on the end side of the insulating base body 11 away from the conductive platform 12, that is, the insulating base body 11 is placed on the operating platform through the vibration device 40; or, the vibration device 40 can also be arranged around the insulating base body 11, that is, the vibration position of the insulating base body 11 is on the side wall of the insulating base body 11; or, the vibration device 40 is arranged on both the end side and the peripheral side of the insulating base body 11.

[0116] Please refer to Figure 7 In some embodiments, a window 20a is formed in the insulating sleeve 20 for the conductive medium 21 to flow out.

[0117] Understandably, the window 20a is used for the conductive medium 21 to flow out of the accommodating space, facilitating the transfer of the conductive medium 21.

[0118] Optionally, the window 20a is formed on the side of the insulating sleeve 20 close to the insulating base 11. In this way, the conductive medium 21 can flow out of the window 20a to the outside of the accommodating space under its own gravity. Of course, the number of windows 20a can also be set to multiple, that is, the windows 20a are respectively arranged on the side wall of the insulating sleeve 20 at intervals, so as to improve the efficiency of discharging the conductive medium 21 from the accommodating space.

[0119] Please refer to Figure 7 In some embodiments, the auxiliary test device 100 further includes a receiving device 50. The receiving device 50 includes a first receiving mechanism 51, and the first receiving mechanism 51 is in communication with the window 20a.

[0120] Understandably, the receiving device 50 is used to collect and store the conductive medium 21. The receiving device 50 should have a certain accommodating cavity. Therefore, the receiving device 50 can be a disc-shaped structure, a cylindrical structure, a tank-shaped structure, etc.

[0121] Among them, the first receiving mechanism 51 is used to communicate with the window 20a, so that the conductive medium 21 can be received in the first receiving mechanism 51 through the window 20a. Similarly, the first receiving mechanism 51 can also be a disc-shaped structure, a cylindrical structure, a tank-shaped structure, etc.

[0122] Exemplarily, the first receiving mechanism 51 includes a plurality of disc-shaped structures. Each disc-shaped structure is arranged around the plugging base. A transmission channel is provided between each disc-shaped structure and the corresponding window 20a. Therefore, when it is necessary to collect the conductive medium 21, the window 20a is opened, and the conductive medium 21 converges into the corresponding disc-shaped structure along the transmission channel.

[0123] Please refer to Figure 7 In some embodiments, the receiving device 50 further includes a second receiving mechanism 52, and the second receiving mechanism 52 is in communication with the open end of the insulating sleeve 20.

[0124] Understandably, the shape and structure of the second receiving mechanism 52 can be the same as those of the first receiving mechanism 51. Similarly, the second receiving mechanism 52 is a disc-shaped structure, a cylindrical structure, a tank-shaped structure, etc. The second receiving mechanism 52 is used to temporarily store a certain amount of the conductive medium 21, and can supplement the required conductive medium 21 to the open end of the insulating sleeve 20.

[0125] Exemplarily, the second receiving mechanism 52 also includes a plurality of disc-shaped structures, each disc-shaped structure is arranged around the insulating sleeve, and a transmission channel is arranged between each disc-shaped structure and the open end of the insulating sleeve. Therefore, when it is necessary to supplement the corresponding conductive medium 21 to the accommodating space, the conductive medium 21 is transmitted along the transmission channel into the accommodating space.

[0126] Please refer to Figure 7 , in some embodiments, the receiving device 50 further includes a transmission mechanism 53, and the transmission mechanism 53 is used to realize the transmission of the conductive medium 21 between the first receiving mechanism 51 and the second receiving mechanism 52.

[0127] It can be understood that the transmission mechanism 53 includes but is not limited to a conveyor belt, a transmission chain, a transmission pipeline, etc. The transmission mechanism 53 is used to realize the transfer of the conductive medium 21 between the first receiving mechanism 51 and the second receiving mechanism 52, so as to quickly supplement the conductive medium 21 into the accommodating space.

[0128] For example, after the insulation withstand voltage test of the current object to be tested 200 is completed, the conductive medium 21 in the accommodating space can flow through the window 20a into the first receiving mechanism 51, and moreover, the conductive medium 21 in the first receiving mechanism 51 is transferred into the second receiving mechanism 52 through the transmission mechanism 53 to wait for the next object to be tested 200.

[0129] Or, when it is necessary to replace the current conductive medium 21, the conductive medium 21 in the accommodating space can flow through the window 20a into the first receiving mechanism 51, and in addition, the conductive medium 21 in the second receiving mechanism 52 flows into the first receiving mechanism 51 through the transmission mechanism 53, and finally, centralized replacement is carried out at the first receiving mechanism 51.

[0130] Exemplarily, the transmission mechanism 53 includes a conveying pipeline and a fan connected to the conveying pipeline. The fan is used to realize the formation of negative pressure in the conveying pipeline, and moreover, the air supply direction of the fan is the transmission direction of the conductive medium 21 in the conveying pipeline.

[0131] Exemplarily, the transmission mechanism 53 includes a belt conveyor, and the belt transmission mechanism includes a driving device, a transmission wheel connected to the output end of the driving device, and a conveyor belt wound around the two transmission wheels. In this way, one end of the conveyor belt extends into the first receiving mechanism 51, and the other end of the conveyor belt extends into the second receiving mechanism 52, so as to meet the transmission of the conductive medium 21 between the first receiving mechanism 51 and the second receiving mechanism 52.

[0132] Optionally, in one embodiment, the receiving device 50 includes a first receiving mechanism 51, a second receiving mechanism 52 disposed opposite to the first receiving mechanism 51, and a transmission mechanism 53 located therebetween. The second receiving mechanism 52 is located directly above the first receiving mechanism 51, and both the second receiving mechanism 52 and the first receiving mechanism 51 are located on the same side of the insulating sleeve 20. Thus, when the object to be tested 200 completes the insulation withstand voltage test, the conductive medium 21 in the accommodation space can flow through the window 20a into the first receiving mechanism 51, and the conductive medium 21 in the first receiving mechanism 51 is transferred into the second receiving mechanism 52 through the transmission mechanism 53 to wait for the next object to be tested 200; and when it is necessary to replace the current conductive medium 21, the conductive medium 21 in the accommodation space can flow through the window 20a into the first receiving mechanism 51, and the conductive medium 21 in the second receiving mechanism 52 flows into the first receiving mechanism 51 through the transmission mechanism 53. Finally, centralized replacement is performed at the first receiving mechanism 51.

[0133] Please refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 7 In a specific embodiment, the auxiliary testing device 100 includes a plugging base 10, an insulating sleeve 20, a switch assembly 30, a vibration device 40, and a receiving device 50.

[0134] Among them, the plugging base 10 includes an insulating base body 11 and a conductive platform 12 disposed on the insulating base body 11. A plugging hole 10a is formed in the conductive platform 12.

[0135] The insulating sleeve 20 is sleeved on the conductive platform 12 to enclose an accommodation space filled with a fluid conductive medium 21. The object to be tested 200 is placed in the conductive medium 21 and the power supply end 201 is plugged into the plugging hole 10a.

[0136] The switch assembly 30 has a first stationary contact 31, a second stationary contact 32, and a moving contact 33. The moving contact 33 can be selectively connected to the first stationary contact 31 or the second stationary contact 32. The first stationary contact 31 is electrically connected to the data terminal 202 of the object under test 200, the second stationary contact 32 is electrically connected to the conductive platform 12, and the moving contact 33 is electrically connected to the power supply terminal 201 through the insulation withstand voltage tester 1000. Then, when the moving contact 33 is electrically connected to the first stationary contact 31, the input-to-output insulation withstand voltage test of the object under test 200 can be realized; when the moving contact 33 is electrically connected to the second stationary contact 32, the input-to-housing insulation withstand voltage test of the object under test 200 can be realized. During the entire test process, only by switching the position of the moving contact 33 of the switch assembly 30 with the corresponding stationary contact, the switching between the input-to-output insulation withstand voltage test and the input-to-housing insulation withstand voltage test of the object under test 200 can be realized. Compared with manually adjusting different clamping positions of the object under test 200, the test accuracy is greatly improved; and, compared with covering the housing of the object under test 200 with copper foil, using the conductive medium 21 with fluidity to cover the housing of the object under test 200 has a better covering effect and also saves more time.

[0137] The conductive medium 21 includes metal microbeads. The particle size range of the metal microbeads can be 0.1 mm to 0.5 mm.

[0138] The conductive platform 12 has a support surface 111 facing away from the insulating base 11, and an inclined surface for the conductive medium 21 to flow is formed on the support surface 111. Specifically, the inclined surface can be inclined from the edge of the conductive platform 12 towards the middle of the conductive platform 12, that is, the middle of the conductive platform 12 is higher than the edge of the conductive platform 12, so that the cross-sectional shape of the conductive platform 12 is conical or similar to a cone. In this way, it is convenient for the conductive medium 21 that first enters the accommodation space to flow towards the inner wall of the insulating sleeve 20. At the same time, when the insulating sleeve 20 is removed from the conductive platform 12, the conductive medium 21 can slide off the conductive platform 12 along the inclined surface, which is also convenient for collecting the conductive medium 21.

[0139] An insulating layer 13 is provided at the insertion hole 10a of the conductive platform 12, and the end face of the insulating layer 13 is higher than the end face of the conductive platform 12.

[0140] Both the insulating base 11 and the conductive platform 12 are columnar structures, and the outer diameter of the insulating base 11 is larger than the outer diameter of the conductive platform 12. It can be understood that the columnar conductive platform 12 is convenient for matching with the insulating sleeve 20, that is, the insulating sleeve 20 can be sleeved on the conductive platform 12 and abutted against the insulating base 11. In this way, the connection stability between the insulating sleeve 20 and the conductive platform 12 is also improved, and at the same time, the disassembly and assembly of the insulating sleeve 20 are also convenient.

[0141] The vibration device 40 is used to vibrate the insulating base 11. Specifically, the vibration device 40 is disposed on the side of the insulating base 11 away from the conductive platform 12.

[0142] A window 20a is formed on the insulating sleeve 20, and the window 20a is used for the conductive medium 21 to flow out of the accommodating space, facilitating the transfer of the conductive medium 21.

[0143] The accommodating device 50 includes a first accommodating mechanism 51, a second accommodating mechanism 52, and a transmission mechanism 53 for realizing the transmission of the conductive medium 21 between the first accommodating mechanism 51 and the second accommodating mechanism 52. The first accommodating mechanism 51 is in communication with the window 20a, and the second accommodating mechanism 52 is used to supply the conductive medium 21 to the open end of the insulating sleeve 20.

[0144] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should be covered by the protection scope of the present application.

Claims

1. An auxiliary testing device is used to assist an insulation withstand voltage tester in performing insulation withstand voltage testing on an object to be tested. The object to be tested has a power supply terminal and a data terminal, and is characterized in that, Comprising: A plug-in base, the plug-in base includes an insulating seat body and a conductive platform provided on the insulating seat body, and a plug hole is formed on the conductive platform; An insulating sleeve, the insulating sleeve is sleeved on the conductive platform to enclose a containing space, a fluid conductive medium is filled in the containing space, the object to be tested is placed in the conductive medium and the power supply end is plugged into the plug hole; A switch assembly, the switch assembly has a first static contact end, a second static contact end and a moving contact end, the moving contact end can be selectively connected to the first static contact end or the second static contact end, the first static contact end is electrically connected to the data end of the object to be tested, the second static contact end is electrically connected to the conductive platform, and the moving contact end is electrically connected to the power supply end through the insulation withstand voltage tester.

2. The auxiliary test device according to claim 1, wherein: The conductive medium includes metal microbeads.

3. The auxiliary test device according to claim 1, wherein: The conductive platform has a support surface facing away from the insulating seat body, and a guiding structure for the flow of the conductive medium is formed on the support surface.

4. The auxiliary test device according to claim 3, wherein: The guiding structure includes an inclined surface formed on the support surface.

5. The auxiliary test device according to claim 4, characterized in that: The included angle a between the inclined surface and the horizontal plane is 10° to 15°.

6. The auxiliary test device according to any one of claims 1 to 5, characterized in that: An insulating layer is provided at the plug hole of the conductive platform, and the end face of the insulating layer is higher than the end face of the conductive platform.

7. The auxiliary test device according to claim 6, characterized in that: The height difference h between the end face of the insulating layer and the end face of the conductive platform is greater than or equal to 4 mm.

8. The auxiliary test device according to any one of claims 1 to 5, characterized in that: The height H of the insulating seat body is 10 mm to 15 mm.

9. The auxiliary test device according to any one of claims 1 to 5, characterized in that: Both the insulating seat body and the conductive platform are columnar structures, and the outer diameter of the insulating seat body is larger than the outer diameter of the conductive platform.

10. The auxiliary test device according to claim 9, wherein: The difference m between the outer diameter of the insulating seat body and the outer diameter of the conductive platform is 10 mm to 12 mm.

11. The auxiliary test device according to any one of claims 1 to 5, characterized in that: The auxiliary testing device further includes a vibration device for vibrating the insulating seat body.

12. The auxiliary test device according to claim 11, wherein: A window for the outflow of the conductive medium is formed on the insulating sleeve.

13. The auxiliary testing device according to claim 12, characterized in that: The auxiliary testing device further includes a receiving device, the receiving device includes a first receiving mechanism, and the first receiving mechanism is communicated with the window.

14. The auxiliary test device according to claim 13, wherein: The receiving device further includes a second receiving mechanism, and the second receiving mechanism is communicated with the open end of the insulating sleeve.

15. The auxiliary test device according to claim 14, wherein: The receiving device further includes a transmission mechanism for realizing the transmission of the conductive medium between the first receiving mechanism and the second receiving mechanism.

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