Insulation withstand voltage testing device and method

Abstract

The application provides an insulation withstand voltage testing device and method, comprising: an insulation withstand voltage tester, a transfer box group and a battery pack group, the insulation withstand voltage tester, the transfer box group and the battery pack group are connected in sequence, and the battery pack group is connected with the insulation withstand voltage tester; the transfer box group comprises N transfer boxes, and the battery pack group comprises N battery packs; the transfer box comprises an incoming line port, an outgoing line port and an output port; the incoming line port and the outgoing line port are connected with the output port respectively, and the incoming line port is connected with the outgoing line port, wherein N is greater than 2; insulation withstand voltage testing of the N battery packs can be completed, the testing efficiency is improved, and the production rhythm is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive production line testing, and in particular to an insulation withstand voltage testing device and method. Background Technology

[0002] To confirm the safe rated voltage of the device under test (DUT) and its safety under instantaneous overvoltage, an insulation withstand voltage test is conducted to determine whether the insulation spacing between the DUT and its components is appropriate. The insulation withstand voltage test is an essential part of battery pack safety testing.

[0003] Currently, the insulation withstand voltage test method for battery packs involves testing the insulation withstand voltage of the positive terminal (pack+) of each individual battery pack against the casing, and then testing the insulation withstand voltage of the negative terminal (pack-) of each individual battery pack against the casing. However, this testing method is time-consuming, slows down production cycles, and is inconvenient to operate. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an insulation withstand voltage testing device and method that can complete the insulation withstand voltage test of N battery packs, improve testing efficiency, and increase production cycle time.

[0005] In a first aspect, embodiments of the present invention provide an insulation withstand voltage testing device, the device comprising: an insulation withstand voltage tester, a transfer box assembly, and a battery pack assembly, wherein the insulation withstand voltage tester, the transfer box assembly, and the battery pack assembly are connected in sequence, and the battery pack assembly is connected to the insulation withstand voltage tester;

[0006] The transfer box group includes N transfer boxes, and the battery pack group includes N battery packs; the transfer box includes an inlet, an outlet, and an output port; the inlet and the outlet are respectively connected to the output port, and the inlet is connected to the outlet, wherein N is greater than 2.

[0007] Furthermore, after the outer casings of each battery pack are connected in parallel, they are connected to the negative terminal of the insulation withstand voltage tester.

[0008] Furthermore, the N transfer boxes include a first transfer box, the N battery packs include a first battery pack, and the first transfer box includes a first inlet, a first outlet, and a first outlet.

[0009] The outside of the first inlet is connected to the positive terminal of the insulation withstand voltage tester, the inside of the first inlet is connected to the inside of the first outlet, the inside of the first outlet is connected to the inside of the first outlet, and the outside of the first outlet is connected to the positive terminal of the first battery pack.

[0010] Furthermore, the N transfer boxes also include a second transfer box, and the N battery packs also include a second battery pack. The second transfer box includes a second inlet, a second outlet, and a second outlet.

[0011] The exterior of the second inlet is connected to the exterior of the first outlet, the interior of the second inlet is connected to the interior of the second outlet, the interior of the second outlet is connected to the interior of the second outlet, and the exterior of the second outlet is connected to the positive terminal of the second battery pack.

[0012] Furthermore, the N transfer boxes also include an Nth transfer box, the N battery packs also include an Nth battery pack, and the Nth transfer box includes an Nth inlet and an Nth outlet;

[0013] The exterior of the Nth inlet port is connected to the exterior of the (N-1)th outlet port, the interior of the Nth inlet port is connected to the Nth outlet port, and the exterior of the Nth outlet port is connected to the positive terminal of the Nth battery pack.

[0014] Furthermore, the outer casing points of the first battery pack, the second battery pack, and the Nth battery pack are connected in parallel and then connected to the negative terminal of the insulation withstand voltage tester.

[0015] Secondly, embodiments of the present invention provide an insulation withstand voltage test method, applied to the insulation withstand voltage test apparatus as described above. The apparatus includes: an insulation withstand voltage tester, a transfer box group, and a battery pack group. The transfer box group includes N transfer boxes, and the battery pack group includes N battery packs. The method includes:

[0016] Once the insulation withstand voltage tester starts testing, it acquires the test data corresponding to each battery pack.

[0017] The test data is displayed on the screen of the insulation withstand voltage tester;

[0018] When the test data shows an anomaly, the corresponding battery pack is determined based on the test data;

[0019] The transfer box connected to the battery pack is determined based on the battery pack.

[0020] Furthermore, the method also includes:

[0021] Replace the transfer box connected to the battery pack.

[0022] Thirdly, embodiments of the present invention provide an electronic device, including a memory and a processor, wherein the memory stores a computer program that can run on the processor, and the processor executes the computer program to implement the method described above.

[0023] Fourthly, embodiments of the present invention provide a computer-readable medium having processor-executable non-volatile program code that causes the processor to perform the method described above.

[0024] This invention provides an insulation withstand voltage testing device and method, comprising: an insulation withstand voltage tester, a transfer box group, and a battery pack group, wherein the insulation withstand voltage tester, the transfer box group, and the battery pack group are connected in sequence, and the battery pack group is connected to the insulation withstand voltage tester; the transfer box group includes N transfer boxes, and the battery pack group includes N battery packs; each transfer box includes an inlet, an outlet, and an output port; the inlet and outlet are respectively connected to the output port, and the inlet and outlet are connected, wherein N is greater than 2; the device can perform insulation withstand voltage testing on N battery packs, improving testing efficiency and increasing production cycle time.

[0025] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the insulation withstand voltage testing device provided in Embodiment 1 of the present invention;

[0029] Figure 2 This is a schematic diagram of another insulation withstand voltage testing device provided in Embodiment 1 of the present invention;

[0030] Figure 3 This is a flowchart of the insulation withstand voltage test method provided in Embodiment 2 of the present invention. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] To facilitate understanding of this embodiment, the embodiments of the present invention will be described in detail below.

[0033] Example 1:

[0034] Figure 1 This is a schematic diagram of the insulation withstand voltage testing device provided in Embodiment 1 of the present invention.

[0035] Reference Figure 1 The device includes: an insulation withstand voltage tester, a transfer box assembly, and a battery pack assembly, which are connected in sequence, with the battery pack assembly connected to the insulation withstand voltage tester.

[0036] The transfer box group includes N transfer boxes, and the battery pack group includes N battery packs; the transfer box includes an inlet, an outlet, and an output port; the inlet and outlet are connected to the output port respectively, and the inlet and outlet are connected to the outlet, where N is greater than 2.

[0037] To address the problem of long testing times and slow production cycles caused by performing insulation withstand voltage tests on the positive electrode of a single battery pack to its casing in existing technologies, this application connects N battery packs in series with their corresponding N transfer boxes simultaneously to complete the insulation withstand voltage test on the positive electrode of all N battery packs to their casings. This improves testing efficiency and production cycle time, while also offering the advantages of convenient testing and easy measurement by on-site personnel.

[0038] Furthermore, after the outer casings of each battery pack are connected in parallel, they are connected to the negative terminal of the insulation withstand voltage tester.

[0039] Furthermore, the N transfer boxes include a first transfer box, the N battery packs include a first battery pack, and the first transfer box includes a first inlet, a first outlet, and a first outlet.

[0040] The outside of the first inlet is connected to the positive terminal of the insulation withstand voltage tester, the inside of the first inlet is connected to the inside of the first outlet, the inside of the first outlet is connected to the inside of the first outlet, and the outside of the first outlet is connected to the positive terminal of the first battery pack.

[0041] Furthermore, the N transfer boxes also include a second transfer box, and the N battery packs also include a second battery pack. The second transfer box includes a second inlet, a second outlet, and a second outlet.

[0042] The exterior of the second inlet is connected to the exterior of the first outlet, the interior of the second inlet is connected to the interior of the second outlet, the interior of the second outlet is connected to the interior of the second outlet, and the exterior of the second outlet is connected to the positive terminal of the second battery pack.

[0043] Furthermore, the N transfer boxes also include the Nth transfer box, the N battery packs also include the Nth battery pack, and the Nth transfer box includes the Nth inlet and the Nth outlet.

[0044] The exterior of the Nth inlet is connected to the exterior of the (N-1)th outlet, the interior of the Nth inlet is connected to the Nth outlet, and the exterior of the Nth outlet is connected to the positive terminal of the Nth battery pack.

[0045] Furthermore, the outer casing points of the first battery pack, the second battery pack, and the Nth battery pack are connected in parallel and then connected to the negative terminal of the insulation withstand voltage tester.

[0046] Figure 2 This is a schematic diagram of another insulation withstand voltage test device provided in Embodiment 1 of the present invention.

[0047] Reference Figure 2 The following explanation uses three transfer boxes and three battery packs as an example. The insulation withstand voltage tester 1, transfer box 1 2, transfer box 2 3, transfer box 3 4, battery pack 1 13, battery pack 2 14, and battery pack 3 15 constitute a complete testing device.

[0048] The rear panel of transfer box 2 has a cable inlet 5 and a cable outlet 6, and the front panel has an output port 7. The external part of cable inlet 5 is connected to the positive terminal (HV+) of insulation withstand voltage tester 1, and the internal part of cable inlet 5 is connected to output port 7. The internal part of output port 7 is connected to the internal part of cable outlet 6, and the external part of output port 7 is connected to pack+ of battery pack 13.

[0049] The rear panel of transfer box 3 has a cable inlet 8 and a cable outlet 9, and the front panel has an output port 10. The external part of cable inlet 8 is connected to cable outlet 6, and the internal part of cable inlet 8 is connected to output port 10. The internal part of output port 10 is connected to the internal part of cable outlet 9, and the external part of output port 10 is connected to pack+ of battery pack 14.

[0050] The rear panel of the No. 3 transfer box 4 is equipped with a No. 3 inlet port 11, and the front panel is equipped with a No. 3 outlet port 12. The outside of the No. 3 inlet port 11 is connected to the No. 2 outlet port 9, and the inside of the No. 3 inlet port 11 is connected to the No. 3 outlet port 12; the outside of the No. 3 outlet port 12 is connected to the pack+ of the No. 3 battery pack 15.

[0051] The three outer casing points (PE) of battery pack 13 (outer casing point 16), battery pack 2 (outer casing point 17), and battery pack 3 (outer casing point 18) are connected in parallel to the negative terminal (HV-) of the insulation withstand voltage tester 1.

[0052] Additionally, based on the above connection method, port 5 of line 1 can also be connected to the positive terminal of the safety testing instrument. The safety testing instrument is used to check whether the voltage, current, and other indicators of the device comply with national safety standards and specifications. The safety testing instrument can be used to check whether the battery pack complies with national safety standards and specifications.

[0053] This invention provides an insulation withstand voltage testing device, comprising: an insulation withstand voltage tester, a transfer box group, and a battery pack group, which are connected sequentially. The battery pack group is connected to the insulation withstand voltage tester. The transfer box group includes N transfer boxes, and the battery pack group includes N battery packs. Each transfer box includes an inlet, an outlet, and an output port. The inlet and outlet are connected to the output port, and the inlet and outlet are also connected, wherein N is greater than 2. This device can perform insulation withstand voltage tests on N battery packs, improving testing efficiency and increasing production cycle time.

[0054] Example 2:

[0055] Figure 3 This is a flowchart of the insulation withstand voltage test method provided in Embodiment 2 of the present invention.

[0056] Reference Figure 3 The method is applied to the insulation withstand voltage testing device described above, which includes: an insulation withstand voltage tester, a transfer box group, and a battery pack group. The transfer box group includes N transfer boxes, and the battery pack group includes N battery packs. The method includes the following steps:

[0057] Step S101: After the insulation withstand voltage tester starts testing, acquire the test data corresponding to each battery pack.

[0058] Step S102: Display the test data on the screen of the insulation withstand voltage tester;

[0059] Step S103: When the test data shows an anomaly, determine the corresponding battery pack based on the test data;

[0060] Step S104: Determine the transfer box connected to the battery pack based on the battery pack.

[0061] Furthermore, the method also includes the following steps:

[0062] Step S201: Replace the transfer box connected to the battery pack.

[0063] This invention provides an insulation withstand voltage test method, comprising: acquiring test data corresponding to each battery pack after the insulation withstand voltage tester starts testing; displaying the test data on the display screen of the insulation withstand voltage tester; determining the corresponding battery pack based on the test data when the test data is abnormal; and determining the transfer box connected to the battery pack based on the battery pack. This method allows for timely replacement of the transfer box in case of damage to the test harness, thereby achieving convenience, speed, and improved efficiency.

[0064] This invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the insulation withstand voltage test method provided in the above embodiments.

[0065] This invention also provides a computer-readable medium having processor-executable non-volatile program code, on which a computer program is stored, and which, when run by a processor, executes the steps of the insulation withstand voltage test method described above.

[0066] The computer program product provided in this embodiment of the invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods described in the preceding method embodiments. For specific implementation details, please refer to the method embodiments, which will not be repeated here.

[0067] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and apparatus described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0068] Furthermore, in the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0069] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0070] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0071] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An insulation withstand voltage testing device, characterized in that, The device includes: an insulation withstand voltage tester, a transfer box assembly, and a battery pack assembly, wherein the insulation withstand voltage tester, the transfer box assembly, and the battery pack assembly are connected in sequence, and the battery pack assembly is connected to the insulation withstand voltage tester. The transfer box group includes N transfer boxes, and the battery pack group includes N battery packs; the transfer box includes an inlet, an outlet, and an output port; the inlet and the outlet are respectively connected to the output port, and the inlet is connected to the outlet, wherein N is greater than 2; The N transfer boxes include a first transfer box, the N battery packs include a first battery pack, and the first transfer box includes a first inlet, a first outlet, and a first outlet. The outside of the first inlet is connected to the positive terminal of the insulation withstand voltage tester, the inside of the first inlet is connected to the inside of the first outlet, the inside of the first outlet is connected to the inside of the first outlet, and the outside of the first outlet is connected to the positive terminal of the first battery pack. The N transfer boxes also include an Nth transfer box, the N battery packs also include an Nth battery pack, and the Nth transfer box includes an Nth inlet and an Nth outlet; The exterior of the Nth inlet port is connected to the exterior of the (N-1)th outlet port, the interior of the Nth inlet port is connected to the Nth outlet port, and the exterior of the Nth outlet port is connected to the positive terminal of the Nth battery pack.

2. The insulation withstand voltage testing device according to claim 1, characterized in that, The outer casings of each battery pack are connected in parallel and then connected to the negative terminal of the insulation withstand voltage tester.

3. The insulation withstand voltage testing device according to claim 1, characterized in that, The N transfer boxes also include a second transfer box, and the N battery packs also include a second battery pack. The second transfer box includes a second inlet, a second outlet, and a second outlet. The exterior of the second inlet is connected to the exterior of the first outlet, the interior of the second inlet is connected to the interior of the second outlet, the interior of the second outlet is connected to the interior of the second outlet, and the exterior of the second outlet is connected to the positive terminal of the second battery pack.

4. The insulation withstand voltage testing device according to claim 3, characterized in that, The outer casing points of the first battery pack, the second battery pack, and the Nth battery pack are connected in parallel and then connected to the negative terminal of the insulation withstand voltage tester.

5. A method for testing insulation withstand voltage, characterized in that, The method is applied to the insulation withstand voltage testing apparatus according to any one of claims 1-4, the apparatus comprising: an insulation withstand voltage tester, a transfer box group, and a battery pack group, wherein the transfer box group comprises N transfer boxes, and the battery pack group comprises N battery packs, and the method comprises: Once the insulation withstand voltage tester starts testing, it acquires the test data corresponding to each battery pack. The test data is displayed on the screen of the insulation withstand voltage tester; When the test data shows an anomaly, the corresponding battery pack is determined based on the test data; The transfer box connected to the battery pack is determined based on the battery pack.

6. The insulation withstand voltage test method according to claim 5, characterized in that, The method further includes: Replace the transfer box connected to the battery pack.

7. An electronic device comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, characterized in that, When the processor executes the computer program, it implements the method described in claim 5 or 6.

8. A computer-readable medium having processor-executable non-volatile program code, characterized in that, The program code causes the processor to execute the method of claim 5 or 6.

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