Insulation detection device and battery module detection production line

Abstract

The utility model belongs to battery module detection technical field discloses an insulation detection device and battery module detection production line. The insulation detection device includes first detection board, second detection board, insulation detection appearance and mobile drive mechanism. The module shell board of waiting for measuring is pinched between first detection board and second detection board, and first detection board and second detection board all have conductivity and are connected in insulation detection appearance respectively, and mobile drive mechanism is used for driving second detection board to move to the direction of approaching or moving away from first detection board. The insulation detection device can improve the precision and reliability of the insulation detection of battery module shell, and improve the efficiency of detection.

Description

Technical Field

[0001] This utility model relates to the field of battery module testing technology, and in particular to an insulation testing device and a battery module testing production line. Background Technology

[0002] Soft-pack battery modules typically have a metal casing surrounding the stacked battery cells to protect them from impacts. Usually, a heat-pressed insulating film is placed inside the metal casing to prevent direct contact between the casing and the cells, which could damage the cells or cause poor insulation withstand voltage in the module. If the insulating film has adhesion problems or is damaged, it will lead to poor insulation withstand voltage in the soft-pack battery module, rendering the module unusable. Therefore, insulation testing of the metal casing is crucial.

[0003] Currently, the integrity of the heat-pressed insulating film on each plate of the metal casing is generally inspected manually or by CCD vision. However, these methods cannot detect minute damage to the insulating film, resulting in low reliability and efficiency.

[0004] Therefore, there is an urgent need for an insulation testing device and a battery module testing production line to solve the above problems. Utility Model Content

[0005] According to one aspect of the present invention, the object is to provide an insulation testing device that can improve the accuracy and reliability of insulation testing of battery module casings and improve testing efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An insulation testing device includes a first testing plate, a second testing plate, an insulation tester, and a moving drive mechanism;

[0008] The module shell to be tested is sandwiched between the first detection plate and the second detection plate. Both the first detection plate and the second detection plate are conductive and are respectively connected to the insulation tester.

[0009] The moving drive mechanism is used to drive the second detection plate to move closer to or further away from the first detection plate.

[0010] As a preferred embodiment of the insulation testing device provided by this utility model, the insulation testing device further includes a connecting mechanism, which is connected to the output end of the moving drive mechanism and detachably connected to the second testing plate.

[0011] As a preferred embodiment of the insulation detection device provided by this utility model, the connection mechanism includes a connector body and a magnetic structure. The connector body is connected to the output end of the moving drive mechanism, and the magnetic structure is disposed on the connector body and can be magnetically connected to the second detection plate.

[0012] As a preferred embodiment of the insulation testing device provided by this utility model, the magnetic structure has a mounting groove on the side facing the second testing plate, and the insulation tester includes a first testing end, which is disposed in the mounting groove and can contact the first testing plate.

[0013] As a preferred embodiment of the insulation testing device provided by this utility model, the projection of the second testing plate in the direction pointing to the first testing plate falls within the range of the shell plate of the module to be tested.

[0014] As a preferred embodiment of the insulation testing device provided by this utility model, the first testing plate is provided with a first limiting structure and a second limiting structure. The first limiting structure and the second limiting structure are set at an angle to each other, and the first limiting structure and the second limiting structure form a positioning space. The shell plate of the module to be tested is positioned in the positioning space, and the size of the positioning space is adjustable.

[0015] As a preferred embodiment of the insulation testing device provided by this utility model, the end of the second limiting structure is provided with a guide portion, and the shell plate of the module to be tested can enter the positioning space along the guide portion.

[0016] As a preferred embodiment of the insulation detection device provided by this utility model, the first detection plate is provided with a third limiting structure, the third limiting structure including a transverse positioning part and a longitudinal positioning part connected together, the transverse positioning part and the longitudinal positioning part being arranged at an angle.

[0017] As a preferred embodiment of the insulation testing device provided by this utility model, the insulation testing device further includes a workbench, on which the first testing plate, the insulation tester and the moving drive mechanism are all disposed.

[0018] According to another aspect of the present invention, the objective is to provide a battery module testing production line, the battery module testing production line including an insulation testing device as described in any of the above embodiments.

[0019] The beneficial effects of this utility model are:

[0020] The insulation testing device provided by this utility model includes a first testing plate, a second testing plate, an insulation tester, and a moving drive mechanism. The module shell to be tested is clamped between the first and second testing plates, both of which are conductive and connected to the insulation tester. The first and second testing plates clamp the module shell to be tested, ensuring its stability and allowing complete contact with both sides of the shell, avoiding blind spots. The insulation tester can then be used to test the insulation of the module shell, improving the accuracy and reliability of insulation testing of the battery module shell. This eliminates the need for visual inspection by operators, increasing testing efficiency. The moving drive mechanism drives the second testing plate to move closer to or further away from the first testing plate. This mechanism automates the clamping and assembly process of the second and first testing plates on the module shell to be tested, improving the assembly efficiency of the first and second testing plates and the module shell to be tested, thereby further improving testing efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the insulation detection device provided in this embodiment of the utility model;

[0023] Figure 2 yes Figure 1 A magnified view of a section marked A in the middle;

[0024] Figure 3 This is a partial structural schematic diagram of the insulation detection device provided in this embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram showing the connection between the magnetic attraction structure and the first detection end provided in this embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the first and second limiting structures provided in this embodiment of the present invention limiting the shell plate of the module under test;

[0027] Figure 6 This is a schematic diagram of the third limiting structure provided in this embodiment of the utility model limiting the shell plate of the module under test.

[0028] In the picture:

[0029] 10. Module shell to be tested; 11. Side plate; 12. Connecting plate;

[0030] 100. First detection plate; 110. First limiting structure; 120. Second limiting structure; 121. Guide part; 130. Third limiting structure; 131. Lateral positioning part; 132. Longitudinal positioning part; 140. Connector;

[0031] 200. Second detection plate;

[0032] 300. Insulation tester; 310. First test terminal; 320. Second test terminal;

[0033] 400. Moving drive mechanism; 410. Moving guide structure; 420. Lifting slider;

[0034] 500. Connecting mechanism; 510. Connector body; 520. Magnetic suction structure; 521. Mounting slot;

[0035] 600. Workbench. Detailed Implementation

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] In the description of this utility model, it should be noted that the terms "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, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model 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 this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0044] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0045] Figure 1This diagram shows the structure of the insulation detection device provided in an embodiment of the present invention. Figure 2 Show Figure 1 A magnified view of the structure marked A in the middle. (Refer to...) Figure 1 and Figure 2 This embodiment provides an insulation testing device and a battery module testing production line. The battery module testing production line includes the insulation testing device provided in this embodiment, which can test the insulation performance of the casing 10 of the module under test.

[0046] Specifically, the insulation testing device includes a first testing plate 100, a second testing plate 200, an insulation tester 300, and a moving drive mechanism 400. The module shell 10 to be tested is sandwiched between the first testing plate 100 and the second testing plate 200, both of which are conductive. The first testing plate 100 and the second testing plate 200 are respectively connected to the insulation tester 300.

[0047] The insulation tester 300 applies a certain voltage to the surface of the module shell 10 under test through the first detection plate 100 and the second detection plate 200. By comparing the measured resistance value with a standard value, it can be determined whether the coating of the module shell 10 under test is damaged. It should be noted that the insulation tester 300 is a conventional insulation resistance tester in the prior art.

[0048] The first detection plate 100 and the second detection plate 200 clamp the shell plate 10 of the module under test, ensuring its stability and enabling complete contact with the opposite two side surfaces of the entire shell plate 10, avoiding any blind spots in the detection. Using the aforementioned insulation tester 300, the insulation of the shell plate 10 can be tested, improving the accuracy and reliability of the insulation test. This eliminates the need for operators to perform visual inspections, thus increasing testing efficiency.

[0049] Specifically, the second detection plate 200 is driveably connected to the moving drive mechanism 400. The moving drive mechanism 400 drives the second detection plate 200 to move closer to or further away from the first detection plate 100, thereby adjusting the distance between the second detection plate 200 and the first detection plate 100. Through the moving drive mechanism 400, the clamping and assembly process of the second detection plate 200 and the first detection plate 10 on the module shell 10 under test can be automated, thereby improving the assembly efficiency of the first detection plate 100, the second detection plate 200, and the module shell 10 under test, and further improving the testing efficiency.

[0050] In this embodiment, the moving drive mechanism 400 specifically includes a moving guide structure 410 and a lifting slider 420, the lifting slider 420 being able to move along the moving guide structure 410. The second detection plate 200 is tractively connected to the lifting slider 420, and can adjust the distance between itself and the first detection plate 100 under the movement of the lifting slider 420 along the moving guide structure 410.

[0051] More specifically, the insulation testing device also includes a connecting mechanism 500, which is connected between the lifting slider 420 and the second testing plate 200, and is detachably connected to the second testing plate 200. This arrangement facilitates the disassembly of the second testing plate 200 from the connecting mechanism 500, thereby enabling the replacement of the second testing plate 200.

[0052] Figure 3 This diagram shows a partial structural schematic of the insulation detection device provided in an embodiment of the present invention. Figure 4 This diagram illustrates the connection between the magnetic attraction structure and the first detection end provided in an embodiment of the present invention. (Refer to...) Figure 3 and Figure 4 The connecting mechanism 500 includes a connecting body 510 and a magnetic attraction structure 520. The connecting body 510 has a rectangular plate-like structure and is connected to the lifting slider 420. The magnetic attraction structure 520 is disposed on the side of the connecting body 510 facing the second detection plate 200 and can be magnetically connected to the second detection plate 200. Through the magnetic connection between the magnetic attraction structure 520 and the second detection plate 200, quick connection and disassembly of the two can be achieved while ensuring the integrity of the second detection plate 200, avoiding any impact on the structure of the second detection plate 200.

[0053] Specifically, the magnetic attraction structure 520 has a mounting groove 521 on the side facing the second detection plate 200. The insulation tester 300 includes a first detection end 310, which is disposed in the mounting groove 521. The lower surface of the first detection end 310 is flush with the opening of the mounting groove 521 and can contact the housing plate 10 of the module under test. Through the above arrangement, not only can the electrical connection between the first detection end 310 and the second detection plate 200 be achieved, but the problem of insufficient magnetic connection strength between the magnetic attraction structure 520 and the second detection plate 200 caused by the first detection end 310 protruding from the opening of the mounting groove 521 can also be avoided.

[0054] More specifically, the insulation tester 300 also includes a second detection end 320, which is connected to the first detection plate 100. The side of the first detection plate 100 is detachably connected to a connector 140 by bolts, and the second detection end 320 is connected to the connector 140, thereby realizing the connection between the second detection end 320 and the first detection plate 100.

[0055] It should be noted that the module shell 10 under test includes a side plate 11 and two connecting plates 12, which are perpendicularly disposed at both ends of the side plate 11 along its length. When the module shell 10 under test is placed on the first detection plate 100, the side plate 11 is parallel to and abuts against the first detection plate 100, and the connecting plates 12 are perpendicular to the first detection plate 100. The length and width dimensions of the second detection plate 200 are not greater than the length and width dimensions of the side plate 11, and the projection of the second detection plate 200 in the direction pointing towards the first detection plate 100 falls within the range of the side plate 11. Through the above arrangement, it is possible to avoid the second detection plate 200 being too large and exceeding the range of the module shell 10 under test, thereby forming a gap with the first detection plate 100, resulting in arc discharge and affecting the test results. At the same time, it is possible to avoid the problem of the second detection plate 200 being obstructed by the connecting plates 12 on both sides when it is pressed against the side plate 11.

[0056] Continue to refer to Figure 1 The insulation testing device also includes a workbench 600, on which the first testing plate 100, the insulation tester 300, and the moving drive mechanism 400 are all mounted. By using the workbench 600, the integration of the above-mentioned components can be improved.

[0057] Figure 5 This diagram illustrates how the first and second limiting structures provided in this embodiment of the present invention limit the housing plate of the module under test. (Refer to...) Figure 5 In one embodiment, the first detection plate 100 is provided with a first limiting structure 110 and a second limiting structure 120. The first limiting structure 110 and the second limiting structure 120 are arranged at an angle to each other, forming a positioning space. The module shell 10 to be tested is positioned in the positioning space, and the size of the positioning space is adjustable. With the above configuration, it can be adapted to the installation of module shells 10 with different length and width dimensions.

[0058] Specifically, both the first limiting structure 110 and the second limiting structure 120 can be detachably installed on the first detection plate 100 by means of bolts or the like.

[0059] More specifically, the first limiting structure 110 is a long rod-shaped structure that can abut against one side of the side plate 11 in the width direction. The second limiting structure 120 is also a long rod-shaped structure, and there are two of them. The two second limiting structures 120 are both perpendicular to the first limiting structure 110. The two second limiting structures 120 can abut against both sides of the side plate 11 in the length direction, and the two connecting plates 12 abut against and are limited to the sides of the corresponding second limiting structure 120.

[0060] More specifically, the end of the second limiting structure 120 is provided with a guide portion 121, which allows the test module shell 10 to enter the positioning space. In this embodiment, the guide portions 121 at the ends of the two second limiting structures 120 extend away from each other, forming a gradually expanding structure in the direction away from the positioning space, so as to guide the movement of the test module shell 10 into the positioning space.

[0061] Figure 6 This diagram illustrates the third limiting structure provided in an embodiment of the present invention, which limits the position of the shell plate of the module under test. (Refer to...) Figure 6 In another embodiment, the first detection plate 100 is provided with a third limiting structure 130, which can position the test module shell 10 in at least two directions that are at an angle to each other.

[0062] Specifically, the third limiting structure 130 includes a lateral positioning part 131 and a longitudinal positioning part 132 connected together. The lateral positioning part 131 and the longitudinal positioning part 132 are arranged perpendicularly to each other. At least two third limiting structures 130 are arranged opposite each other on a first detection plate 100. The lateral positioning parts 131 of the two third limiting structures 130 can simultaneously abut against one side of the side plate 11 in the width direction, and the longitudinal positioning parts 132 of the two third limiting structures 130 are arranged at intervals in the length direction of the side plate 11, and can be used for abutment and limiting of the two connecting plates 12 respectively.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An insulation detection device, characterized by include: The system comprises a first detection board (100), a second detection board (200), an insulation tester (300), and a moving drive mechanism (400). The module shell (10) to be tested is sandwiched between the first detection plate (100) and the second detection plate (200). Both the first detection plate (100) and the second detection plate (200) are conductive and are respectively connected to the insulation tester (300). The moving drive mechanism (400) is used to drive the second detection plate (200) to move closer to or further away from the first detection plate (100).

2. The insulation detection device according to claim 1, characterized by The insulation detection device further includes a connecting mechanism (500), which is connected to the output end of the moving drive mechanism (400) and is detachably connected to the second detection plate (200).

3. The insulation detection device according to claim 2, characterized in that, The connecting mechanism (500) includes a connector body (510) and a magnetic structure (520). The connector body (510) is connected to the output end of the moving drive mechanism (400), and the magnetic structure (520) is disposed on the connector body (510) and can be magnetically connected to the second detection plate (200).

4. The insulation detection device according to claim 3, characterized in that The magnetic structure (520) has an installation groove (521) on the side facing the second detection plate (200). The insulation tester (300) includes a first detection end (310), which is disposed in the installation groove (521) and can contact the first detection plate (100).

5. The insulation testing device according to claim 1, characterized in that, The projection of the second detection plate (200) in the direction pointing to the first detection plate (100) falls within the range of the shell plate (10) of the module under test.

6. The insulation detection device of claim 1, wherein The first detection plate (100) is provided with a first limiting structure (110) and a second limiting structure (120). The first limiting structure (110) and the second limiting structure (120) are set at an angle to each other. The first limiting structure (110) and the second limiting structure (120) form a positioning space. The shell plate (10) of the module to be tested is positioned in the positioning space. The size of the positioning space is adjustable.

7. The insulation detection device of claim 6, wherein The end of the second limiting structure (120) is provided with a guide portion (121), and the shell plate (10) of the module to be tested can enter the positioning space along the guide portion (121).

8. The insulation detection device of claim 1, wherein The first detection plate (100) is provided with a third limiting structure (130), which includes a lateral positioning part (131) and a longitudinal positioning part (132) connected together, and the lateral positioning part (131) and the longitudinal positioning part (132) are arranged at an angle.

9. The insulation detection device according to any one of claims 1 to 8, characterized in that, The insulation testing device also includes a workbench (600), on which the first testing plate (100), the insulation tester (300) and the moving drive mechanism (400) are all disposed.

10. A battery module detection line, characterized by, Including the insulation testing device as described in any one of claims 1-9.

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