Airtight test tool

Abstract

The utility model relates to the technical field of air tightness testing, in particular to an air tightness testing tool which comprises a supporting frame, a sealing piece and an abutting mechanism. Wherein the support frame is provided with a positioning hole, and the positioning hole is used for fixing a to-be-tested battery module. The sealing element can cover an end plate of a to-be-tested battery module so as to form a measuring cavity in a surrounding manner, the measuring cavity can be communicated with a measuring end of airtight testing equipment, and a to-be-tested position of the end plate is located in a covering range of the sealing element. The abutting mechanism is connected to the supporting frame and comprises an abutting piece, and the abutting piece can abut against the sealing piece so that the sealing performance between the sealing piece and the end plate can be guaranteed. The air tightness test tool can be applied to an actual battery module, can perform air tightness test on the end plate, and can conveniently detect the air tightness between the electrical part on the end plate of the battery module and the end plate when the to-be-tested position contains the electrical part.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness testing, in particular to an air tightness testing tool. Background Art

[0002] With the trend of lightweight battery packs, in order to further reduce the installation space of batteries, some industries will choose to cancel the battery PACK and directly use the battery module. Taking soft-pack batteries as an example, the battery module is the direct carrier of the battery cell. After canceling the PACK, it may be necessary to add external structural parts to cooperate with the module carrier to ensure dust and water resistance. Some electrical parts themselves can meet the airtightness requirements, so it is necessary to test whether a surface seal is formed between the electrical parts of the battery module and the end plate, and whether the airtightness here meets the airtightness requirements. The existing test tooling can only perform formal tests to simulate the assembly state, and it is impossible to perform airtightness tests on the actual module, and it is difficult to perform airtightness tests between electrical parts and end plates.

[0003] Therefore, an airtight testing tool is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an airtight testing tool, which can be applicable to an actual battery module and can conveniently detect the airtightness between the electrical components on the end plate of the battery module and the end plate.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Provided is an airtight test fixture, comprising:

[0007] A support frame, wherein a positioning hole is formed on the support frame, and the positioning hole is used to fix the battery module to be tested;

[0008] A sealing member can be covered on the end plate of the battery module to be tested to enclose and form a measuring cavity, the measuring cavity can be connected to the measuring end of the airtight testing equipment, and the position to be tested of the end plate is located within the covering range of the sealing member;

[0009] The tightening mechanism is connected to the support frame, and the tightening mechanism includes a tightening member, and the tightening member can abut against the sealing member to ensure the sealing between the sealing member and the end plate.

[0010] As a preferred solution of the airtight test fixture, it includes a sealing ring, which is arranged on the sealing member and clamped between the sealing member and the end plate.

[0011] As a preferred solution of the airtight test fixture, the abutting member is a toggle clamp, and the abutting end of the toggle clamp can abut against the surface of the sealing member facing away from the battery module to be tested.

[0012] As a preferred solution for the airtight test fixture, two toggle clamps are provided, and the abutting ends of the two toggle clamps are spaced apart.

[0013] As a preferred solution of the airtight test fixture, the abutting mechanism includes a driving member, and the abutting member is connected to an output end of the driving member so that the driving member drives the abutting member to abut against the sealing member.

[0014] As a preferred solution of the airtight test fixture, the clamping mechanism further includes a base, the base is connected to the support frame, and the clamping member is connected to the base.

[0015] As a preferred solution of the airtight test fixture, a connecting port is provided on the sealing component, and the connecting port is connected to the measuring end of the airtight test equipment through a pipeline.

[0016] As a preferred solution of the airtight test fixture, the support frame is provided with a fixing ear, and the positioning hole is opened on the fixing ear.

[0017] As a preferred solution of the airtight test fixture, a plurality of fixing ears are provided so that the plurality of positioning holes correspond one-to-one to the fixing holes on the battery module to be tested.

[0018] As a preferred solution of the airtight test tool, a handle is provided on the support frame to facilitate carrying the support frame.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides an airtight test fixture, including a support frame, a sealing member and a tightening mechanism. Among them, a positioning hole is opened on the support frame, and the positioning hole is used to fix the battery module to be tested. The sealing member can be covered on the end plate of the battery module to be tested to enclose and form a measuring cavity, and the measuring cavity can be connected to the measuring end of the airtight test equipment, and the position to be tested of the end plate is located within the covering range of the sealing member. The tightening mechanism is connected to the support frame, and the tightening mechanism includes a tightening member, and the tightening member can abut the sealing member to ensure the sealing between the sealing member and the end plate. The airtight test fixture can be applied to the actual battery module, and can perform airtightness test on the end plate. When the position to be tested includes electrical components, the airtight test fixture can conveniently detect the airtightness between the electrical components on the end plate of the battery module and the end plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the airtight testing tool provided in the embodiment of the utility model.

[0022] In the figure:

[0023] 1. Support frame; 11. Fixing ears; 12. Assembly holes;

[0024] 2. Sealing element; 21. Connecting port;

[0025] 3. Fastening piece; 4. Base. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and implementation methods. It is understood that the specific embodiments described herein are only used to explain the utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings, rather than all.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] like Figure 1 As shown, the airtight test fixture of this embodiment includes a support frame 1, a sealing member 2 and a tightening mechanism.

[0030] Among them, a positioning hole is provided on the support frame 1, and the positioning hole is used to fix the battery module to be tested. The seal 2 can be covered on the end plate of the battery module to be tested to enclose and form a measuring cavity, and the measuring cavity can be connected to the measuring end of the airtight testing equipment, and the position to be tested of the end plate is located within the covering range of the seal 2. Optionally, a sealing groove is provided on the side of the seal 2 facing the battery module, and when the seal 2 abuts the end plate of the battery module, a cavity, i.e., a measuring cavity, can be formed. The tightening mechanism is connected to the support frame 1, and the tightening mechanism includes a tightening member 3, and the tightening member 3 can abut the seal 2 to ensure the sealing between the seal 2 and the end plate.

[0031] The airtightness test tool can be applied to actual battery modules and can perform airtightness tests on end plates. When the position to be tested includes electrical components, the airtightness test tool can conveniently detect the airtightness between the electrical components on the end plate of the battery module and the end plate.

[0032] In order to ensure the sealing of the measuring chamber and the accuracy of the airtightness test, preferably, the airtightness test fixture further includes a sealing ring, which is arranged on the sealing member 2 and is sandwiched between the sealing member 2 and the end plate. Optionally, an annular groove may be provided on the sealing surface of the sealing member 2 so that the sealing ring is partially embedded in the groove.

[0033] Optionally, in this embodiment, the abutting member 3 is a toggle clamp, the abutting end of which can abut against the surface of the sealing member 2 facing away from the battery module to be tested, to ensure the abutting force of the abutting member 3 against the sealing member 2, thereby ensuring the sealing of the measuring cavity.

[0034] Preferably, two toggle clamps are provided, and the abutting ends of the two toggle clamps are spaced apart. Optionally, the two toggle clamps are spaced apart in the horizontal direction, and the positions abutting the seal 2 are evenly distributed on the seal 2 to ensure the balance of the abutting force on the seal 2.

[0035] Optionally, in other embodiments, the abutting member 3 may also be a rod. Preferably, the abutting mechanism further includes a driving member, and the abutting member 3 is connected to the output end of the driving member, so that the driving member drives the abutting member 3 to abut the sealing member 2. This arrangement facilitates the adjustment of the positions of the abutting member 3 and the sealing member 2 to adapt to battery modules of different models and specifications. Optionally, the driving member is a small cylinder.

[0036] Preferably, the abutting mechanism further comprises a base 4, the base 4 is connected to the support frame 1, and the abutting member 3 is connected to the base 4. In this embodiment, the two toggle clamps are both arranged on the base 4, and the bottom surface of the base 4 is connected to a part of the rod of the support frame 1.

[0037] Preferably, a communication port 21 is provided on the sealing member 2, and the communication port 21 is connected to the measuring end of the airtight test equipment through a pipeline. Preferably, a detachable interface member is provided at the communication port 21, and different interface members can match pipes of different diameters. The interface member is screwed to the communication port 21, that is, an external thread is provided on the outer wall of the interface member, and an internal thread is provided on the side wall of the communication port 21, and the two are screwed together.

[0038] Preferably, the support frame 1 is provided with a fixing ear 11, and a positioning hole is opened on the fixing ear 11. Preferably, a plurality of fixing ears 11 are provided so that the plurality of positioning holes correspond one by one to the fixing holes on the battery module to be tested. During the test, the support frame 1 of the tooling can be covered on the battery module, and then a pin is inserted into the fixing hole to achieve the limit of the tooling and the battery module. The pin can be a conventional threaded pin on the market or a machined column pin.

[0039] Preferably, a handle is provided on the support frame 1 to facilitate carrying the support frame 1. Optionally, a handle fixing hole is provided on the support frame 1 to install the handle.

[0040] Preferably, a large space is reserved between the measuring cavity formed by the seal 2 of the airtight test fixture and the battery module end plate and the electrical components on the battery module end plate. When the model of the electrical components of the battery module is changed, the airtight test fixture can also be used for testing.

[0041] The airtight test tooling has improved compatibility, with an overall weight of only about 6kg. There is no need to carry heavy battery modules to test the tooling, and the tooling can be installed on the battery module for easy operation.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Airtight test tool, characterized in that: include: A support frame (1), wherein the support frame (1) is provided with a positioning hole, and the positioning hole is used to fix the battery module to be tested; A sealing member (2) can be covered on the end plate of the battery module to be tested to enclose and form a measuring cavity, the measuring cavity can be connected to the measuring end of the airtight testing equipment, and the position to be tested of the end plate is located within the covering range of the sealing member (2); A tightening mechanism is connected to the support frame (1), and the tightening mechanism comprises a tightening member (3). The tightening member (3) can abut against the sealing member (2) to ensure the sealing between the sealing member (2) and the end plate.

2. The airtight test tool according to claim 1, characterized in that: It comprises a sealing ring, which is arranged on the sealing member (2) and is sandwiched between the sealing member (2) and the end plate.

3. The airtight test tool according to claim 1, characterized in that: The abutting member (3) is a toggle clamp, and the abutting end of the toggle clamp can abut against the surface of the sealing member (2) facing away from the battery module to be tested.

4. The airtight test tool according to claim 3, characterized in that: Two toggle clamps are provided, and the abutting ends of the two toggle clamps are spaced apart.

5. The airtight test tool according to claim 1, characterized in that: The abutting mechanism comprises a driving member, and the abutting member (3) is connected to an output end of the driving member so that the driving member drives the abutting member (3) to abut against the sealing member (2).

6. The airtight test tool according to any one of claims 1 to 5, characterized in that: The clamping mechanism further comprises a base (4), the base (4) being connected to the support frame (1), and the clamping member (3) being connected to the base (4).

7. The airtight test tool according to any one of claims 1 to 5, characterized in that: The sealing member (2) is provided with a communication port (21), and the communication port (21) is connected to a measuring end of the airtight testing device through a pipeline.

8. The airtight test tool according to any one of claims 1 to 5, characterized in that: The support frame (1) is provided with a fixing ear (11), and the fixing ear (11) is provided with the positioning hole.

9. The airtight test tool according to claim 8, characterized in that: A plurality of fixing ears (11) are provided so that the plurality of positioning holes correspond one-to-one to the fixing holes on the battery module to be tested.

10. The airtight test tool according to any one of claims 1 to 5, characterized in that: The support frame (1) is provided with a handle to facilitate carrying the support frame (1).

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