Insulation test tool with leakage point detection

Abstract

The utility model discloses an insulation test tool with leakage point detection. The insulation test tool comprises a test tool plate, an insulation support and a thermal imager. The testing tool plate is a conductor and is provided with a flat and straight supporting face, and the supporting face is used for supporting the cooling plate. The insulation support is connected or supported on the test tool plate, the insulation support is provided with a top plate, the top plate and the test tool plate are arranged at an interval, and a cavity is formed between the top plate and the test tool plate. The thermal imager is arranged on the top plate, and at least part of the test tool plate is located in the detection range of the thermal imager. According to the insulation test tool with the leakage point detection function, the thermal imager is adopted, the specific position of the insulation leakage point can be rapidly positioned, detection of the position of the insulation leakage point of the cooling plate is achieved, and the position of the insulation leakage point of the cooling plate can be conveniently and rapidly repaired.

Description

TECHNICAL FIELD

[0001] The utility model relates to the cooling plate test technical field of battery pack, concretely relates to an insulation test frock with leak point detection. BACKGROUND

[0002] Battery pack usually includes a plurality of battery modules and cooling plates, each battery module is supported on the cooling plate, and the cooling plate cools each battery module. The surface of the cooling plate in the prior art is coated with a layer of insulating material to insulate the battery module and the cooling plate to prevent short circuit. The cooling plate may have a local position with poor insulation. In related technology, an insulation tester is generally used for detection. The specific detection scheme is to place the cooling plate on a conductive flat plate, connect the negative electrode of the insulation tester to the cooling plate, and connect the positive electrode of the insulation tester to the plate. If the insulation resistance value displayed on the insulation tester is relatively large, it indicates that the plate and the cooling plate are well insulated, the insulation material has no poor insulation condition, and the cooling plate insulation performance is qualified. If the insulation resistance value displayed on the insulation tester is relatively small, it indicates that the plate and the cooling plate are poorly insulated, the insulation material has a poor insulation condition, and the cooling plate insulation performance is unqualified and needs to be repaired. At present, the insulation tester can only detect whether the cooling plate has a poor insulation condition, but cannot determine the specific position of the poor insulation, which is not conducive to improving the efficiency of the cooling plate insulation repair work.

[0003] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0004] To solve one of the above technical defects, the utility model provides an insulation test frock with leak point detection.

[0005] The application provides the following technical scheme:

[0006] An insulation test frock with leak point detection comprises:

[0007] A test frock plate, which is a conductor, has a flat support surface, and the support surface is used to support the cooling plate.

[0008] An insulation support, which is connected or supported to the test frock plate, has a top plate, and is spaced apart from the test frock plate to form a cavity therebetween.

[0009] A thermal imager, which is arranged on the top plate, and the test frock plate is at least partially located within the detection range of the thermal imager.

[0010] Optionally, the insulating support comprises a plurality of columns, each of the columns being vertically supported on or connected to the test fixture plate.

[0011] The top plate is connected to the top of each of the columns.

[0012] Optionally, the test fixture plate is rectangular.

[0013] The insulating support comprises four columns, each of the columns being supported on or connected to a corner of the test fixture plate.

[0014] Optionally, each of the columns is of a telescopic structure, and the column is capable of being adjusted in length to change the distance between the test fixture plate and the top plate.

[0015] Optionally, the column comprises a first tube and a second tube.

[0016] One of the first tube and the second tube is supported on or connected to the test fixture plate, and the other is supported on or connected to the top plate.

[0017] The first tube is sleeved outside the second tube, the first tube is provided with a first limiting hole, and the second tube is provided with a plurality of second limiting holes along the length direction.

[0018] A limiting member is capable of being sleeved in the first limiting hole and any of the second limiting holes.

[0019] Optionally, the column is cooperated with the test fixture plate in any one or more of the following manners:

[0020] The column is heat-fused to the test fixture plate.

[0021] The column is adhesively fixed to the test fixture plate.

[0022] The test fixture plate is provided with a recess, and one end of the column is limited in the recess.

[0023] Optionally, the column is cooperated with the top plate in any one or more of the following manners:

[0024] The column is heat-fused to the top plate.

[0025] The column is adhesively fixed to the test fixture plate.

[0026] The top plate is provided with a recess, and one end of the column is limited in the recess.

[0027] Optionally, the top plate is provided with an opening communicating with the cavity.

[0028] The thermal imager is connected to the top plate and covers at least part of the opening.

[0029] Optionally, the opening is a long slot.

[0030] The thermal imager can slide along the extension direction of the long slot.

[0031] Optionally, a stepped groove is arranged on the side of the opening away from the test tool plate.

[0032] The thermal imager is slidably supported on the stepped groove.

[0033] By adopting the above technical scheme, the application has the following beneficial effects:

[0034] The insulation test tool with leak point detection of the application can quickly locate the specific position of the insulation leak point by using the thermal imager, realize the detection of the insulation leak point position of the cooling plate, and facilitate the quick repair of the insulation leak point position of the cooling plate.

[0035] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings are part of the application and serve to provide a further understanding of the application, the illustrative embodiments of the application and the description thereof serve to explain the application, but do not constitute an improper limitation on the application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0037] Fig. 1 The structure schematic view of the insulation test tool with leak point detection provided by the embodiment of the application;

[0038] Fig. 2 The structure schematic view of the insulation test tool with leak point detection provided by the embodiment of the application in working condition;

[0039] Fig. 3 The structure schematic view of the insulation test tool with leak point detection provided by the embodiment of the application, in which the insulation tester is supported on the stepped groove.

[0040] In the drawings, test tool plate 1, insulation support 2, top plate 21, opening 211, stepped groove 212, stand 22, thermal imager 3, cooling plate 4, screw hole 41, insulation tester 5.

[0041] It should be noted that the drawings and the written description are not intended to limit the scope of the present application in any way, but are merely to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely by referring to the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0044] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] Referring to Figs. 1 to 3As shown, the insulation test tool with leak point detection provided by the embodiment of the present application comprises a test tool plate 1, an insulation support 2 and a thermal imager 3. The test tool plate 1 is a conductor, and has a flat support surface for supporting a cooling plate 4. The test tool plate 1 can be made of a copper plate, an iron plate or an aluminum plate or other conductor plate, and preferably a copper plate, which has better wire performance. The cooling plate 4 is also a flat plate, which is conveniently supported on the support surface. The insulation support 2 is connected or supported on the test tool plate 1, and has a top plate 21 which is spaced apart from the test tool plate 1 to form a cavity therebetween. The thermal imager 3 is arranged on the top plate 21, and the test tool plate 1 is at least partially located in the detection range of the thermal imager 3. In use, the negative electrode of an insulation tester 5 is connected to a screw hole 41 of the cooling plate 4, and the positive electrode is connected to the test tool plate 1. The thermal imager 3 is turned on to record the temperature of the test area in real time. When the thermal imager 3 collects a heating area, the area is the position of the insulation leak point of the cooling plate 4. The thermal imager 3 can quickly locate the specific position of the insulation leak point, realize the detection of the insulation leak point position of the cooling plate 4, and has the functions of visualization and image saving, so as to facilitate the quick repair of the insulation leak point position of the cooling plate 4.

[0046] The insulation support 2 comprises a plurality of columns 22, and each column 22 is vertically supported or connected to the test tool plate 1. The top plate 21 is connected to the top of each column 22. The column 22 has a simple structure, a small cross-sectional diameter and a small occupied space. When the cooling plate 4 is supported on the test tool plate 1, it is not easy to interfere with the column 22.

[0047] The test tool plate 1 is rectangular. The insulation support 2 comprises four columns 22, and each column 22 is supported or connected to the four corners of the test tool plate 1. The four corners of the test tool plate 1 have a small occupied space, and are not easy to interfere with the placement position of the cooling plate 4.

[0048] In one possible embodiment, each of the columns 22 is telescopic, and the length of the column 22 can be adjusted to change the distance between the test fixture plate 1 and the top plate 21. The telescopic column 22 can adjust the distance between the test fixture plate 1 and the top plate 21 to adjust the detection range of the thermal imager 3. When the size of the cooling plate 4 to be detected is small, the length of the column 22 can be adjusted to be shortened to reduce the distance between the test fixture plate 1 and the top plate 21, so as to reduce the detection range of the thermal imager 3; when the size of the cooling plate 4 to be detected is large, the length of the column 22 can be adjusted to be lengthened to increase the distance between the test fixture plate 1 and the top plate 21, so as to increase the detection range of the thermal imager 3, and ensure that the positions on the entire cooling plate 4 can be detected.

[0049] The column 22 comprises a first pipe (not shown) and a second pipe (not shown). One of the first pipe and the second pipe is supported on or connected to the test fixture plate 1, and the other is supported on or connected to the top plate 21. The first pipe is sleeved outside the second pipe, the first pipe is provided with a first limiting hole, and the second pipe is provided with a plurality of second limiting holes in the length direction. A limiting piece can be inserted into the first limiting hole and any of the second limiting holes to fix the first pipe and the second pipe. The limiting piece can be a bolt and a nut, the shank of the bolt is threadedly connected to the nut by penetrating the first limiting hole and any of the second limiting holes, and the nut and the bolt head are limited on both sides of the first pipe.

[0050] In one possible embodiment, the column 22 can be hot melt connected to the test fixture plate 1, the column 22 can be adhesively fixed to the test fixture plate 1, the test fixture plate 1 is provided with a groove, and the column 22 can be limited at one end in the groove. The column 22 can be connected to the test fixture plate 1 by hot melt connection, adhesive fixation and one-end limiting at the same time, or the column 22 can be connected to the test fixture plate 1 by one of the three ways.

[0051] The column 22 can be hot melt connected to the top plate 21, the column 22 can be adhesively fixed to the test fixture plate 1, the top plate 21 is provided with a recess, and the column 22 can be limited at one end in the recess. The column 22 can be connected and fixed only to the top plate 21, or the column 22 can be connected and fixed only to the test fixture plate 1, or the column 22 can be connected and fixed at one end to the top plate 21 and at the other end to the test fixture plate 1.

[0052] In one possible embodiment, the top plate 21 has an opening 211 communicating with the cavity. The thermal imager 3 is connected to the top plate 21 and covers at least a portion of the opening 211. The size of the thermal imager 3 can be larger than the size of the opening 211, so that the thermal imager 3 can be directly placed and supported on the top plate 21 without being connected to the top plate 21. The thermal imager 3 can also be connected to the top plate 21 via fasteners.

[0053] The opening 211 is a long strip (not shown). The thermal imager 3 can slide along the extending direction of the long strip, which is beneficial for the thermal imager 3 to collect and detect different positions.

[0054] An outwardly extending stepped groove 212 is provided on the side of the opening 211 facing away from the test fixture plate 1. The thermal imager 3 is slidably supported in the stepped groove 212. The edge of the thermal imager 3 is slidably supported in the stepped groove 212. By pushing the thermal imager 3 to slide within the stepped groove 212, the thermal imager 3 can capture and detect different positions.

[0055] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. An insulation test tool with leakage detection, characterized in that: include: A test fixture board, wherein the test fixture board is a conductor and has a flat support surface for supporting the cooling plate; an insulating bracket connected to or supported by the test fixture plate, the insulating bracket having a top plate, the top plate and the test fixture plate being spaced apart, and a cavity being formed between the top plate and the test fixture plate; A thermal imager is provided on the top plate, and the test fixture plate is at least partially located within the detection range of the thermal imager.

2. The insulation test tool with leakage detection according to claim 1, characterized in that: The insulating bracket includes a plurality of columns, each of which is vertically supported or connected to the test fixture plate; The top plate is connected to the top of each of the columns.

3. The insulation test tool with leakage detection function according to claim 2, characterized in that: The test fixture plate is rectangular; The insulating bracket includes four columns, and each column is respectively supported or connected to the four corners of the test fixture plate.

4. The insulation test tool with leakage detection function according to claim 3, characterized in that: Each of the columns is a telescopic structure, and the length of the column can be adjusted to change the distance between the test tooling plate and the top plate.

5. The insulation test tool with leakage detection function according to claim 4, characterized in that: The upright column includes a first tube body and a second tube body; One of the first tube body and the second tube body is supported or connected to the test fixture plate, and the other is supported or connected to the top plate; The first tube body is sleeved on the outside of the second tube body, the first tube body is provided with a first limiting hole, and the second tube body is provided with a plurality of second limiting holes along the length direction; The limiting member can be inserted into the first limiting hole and any one of the second limiting holes.

6. The insulation test tool with leakage detection function according to claim 2, characterized in that: The column cooperates with the test fixture plate in any one or more of the following ways: The column is connected to the test fixture plate by hot melting; The column is bonded and fixed to the test fixture plate; A groove is provided on the test fixture plate, and one end of the column is limitedly located in the groove.

7. The insulation test tool with leakage detection function according to claim 2, characterized in that: The columns and the top plate are matched with the top plate in any one or more of the following ways: The columns are connected to the top plate by heat melting; The column is bonded and fixed to the test fixture plate; A recessed groove is provided on the top plate, and one end of the column is limitedly located in the recessed groove.

8. The insulation test tool with leakage detection function according to claim 1, characterized in that: The top plate has an opening communicating with the cavity; The thermal imager is connected to the top plate and covers at least a portion of the opening.

9. The insulation test tool with leakage detection function according to claim 8, characterized in that: The opening is a long strip; The thermal imager can slide along the extending direction of the long strip opening.

10. The insulation test tool with leakage detection function according to claim 9, characterized in that: An outward-expanding step groove is provided on a side of the opening facing away from the test fixture plate; The thermal imager is slidably supported in the step groove.

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