Battery tray air tightness detection tool

Abstract

The utility model discloses a battery tray air tightness detection tool, which comprises a positioning jig, a plurality of sealing assemblies, a hanging bracket, a plurality of first pressing assemblies and a plurality of second pressing assemblies, wherein the plurality of sealing assemblies are respectively arranged on the positioning jig and are used for sealing the side surface of the battery tray; the hanging bracket is arranged above the positioning jig; the first pressing assembly is connected with the hanging bracket and used for pressing the positioning jig. The second pressing assembly is connected with the hanging bracket and used for pressing the positioning jig. Point-to-point sealing of air leakage holes in the periphery of the battery tray can be achieved, and the sealing effect is good; partition pressing of the battery tray can be achieved, and the pressing effect is good; and the accuracy of a detection result is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, and in particular to a tooling for testing the airtightness of a battery tray. Background Technology

[0002] During the production and processing of new energy vehicle battery trays (i.e. battery casings), testing instruments are needed to test the airtightness of the battery trays. Existing methods for testing the airtightness of new energy vehicle battery trays require complete sealing around the battery tray, which involves a large sealing strip area and poor sealing effect. In addition, the battery tray is directly pressed when it is pressed, and if the positioning fixture is not level enough, one side of the battery tray is prone to tilting up, resulting in inaccurate test results or even damage to the battery tray. Summary of the Invention

[0003] According to an embodiment of the present invention, a battery tray airtightness testing fixture is provided, comprising a positioning fixture for positioning the battery tray, and further comprising:

[0004] Several sealing components are respectively mounted on the positioning fixture for sealing the sides of the battery tray;

[0005] The hanger is positioned above the positioning fixture.

[0006] Several first pressing components, each connected to a hanger, are used to press the positioning fixture;

[0007] Several second pressing components, which are connected to the hanger, are used to press the positioning fixture.

[0008] Furthermore, the sealing assembly includes: a sealing head and a drive cylinder;

[0009] The drive cylinder is detachably connected to the positioning fixture;

[0010] The sealing head is connected to the drive cylinder, which can drive the sealing head to seal the air leakage hole on the battery tray.

[0011] Furthermore, the sealing head is made of rubber.

[0012] Furthermore, the first pressing assembly includes: a plurality of first pressing cylinders and a first pressing plate;

[0013] Several first pressing cylinders are installed below the hanger, and their output ends are connected to the first pressing plate, which can drive the first pressing plate to press the battery tray.

[0014] Furthermore, the second pressing assembly includes: a second pressing cylinder and a second pressing plate;

[0015] The second pressure cylinder is located around the hanger, and its output end is connected to the second pressure plate, which can drive the second pressure plate to press the battery tray.

[0016] Furthermore, several guide shafts are provided around the hanger, and guide sleeves coupled to the guide shafts are provided on the positioning fixture.

[0017] Furthermore, it also includes: a linear module, the output end of which is connected to the hanger and can drive the hanger to move up and down.

[0018] According to the embodiment of this utility model, the battery tray airtightness testing fixture can achieve point-to-point sealing of the leakage holes around the battery tray, with good sealing effect; it can also achieve zoned pressing of the battery tray, with good pressing effect; and it greatly improves the accuracy of the test results.

[0019] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a perspective view according to an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 Enlarged view of point A;

[0022] Figure 3 This is a right view according to an embodiment of the present utility model;

[0023] Figure 4 This is a front view according to an embodiment of the present utility model. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0025] First, combine Figures 1-4 The present invention describes a battery tray airtightness testing fixture according to an embodiment of the present invention, which is used in battery tray airtightness testing and has a wide range of applications.

[0026] like Figures 1-4 As shown, the battery tray airtightness testing fixture of this utility model embodiment includes a positioning fixture 1, which is used for positioning the battery tray 6, and also includes:

[0027] A plurality of sealing components 2 are respectively disposed on the positioning fixture 1 for sealing the side of the battery tray 6;

[0028] Hanger 3 is positioned above positioning fixture 1;

[0029] A plurality of first pressing components 4 are connected to the hanger 3 and are used to press the positioning fixture 1;

[0030] Several second pressing components 5 are connected to the hanger 3 and are used to press the positioning fixture 1.

[0031] Furthermore, such as Figures 1-2 As shown, in this embodiment, the sealing assembly 2 includes: a sealing head 21 and a driving cylinder 22;

[0032] The drive cylinder 22 is detachably connected to the positioning fixture 1;

[0033] The sealing head 21 is connected to the driving cylinder 22, which can drive the sealing head 21 to seal the air leakage hole on the battery tray 6. The shape of the sealing head 21 and the model of the driving cylinder 22 are selected according to the requirements.

[0034] Furthermore, such as Figures 1-2 As shown, in this embodiment, the sealing head 21 is made of rubber, which provides good sealing performance.

[0035] Furthermore, such as Figures 1-2 As shown, in this embodiment, the first pressing component 4 includes: a plurality of first pressing cylinders 41 and a first pressing plate 42;

[0036] Several first pressing cylinders 41 are arranged below the hanger 3, and their output ends are connected to the first pressing plate 42, which can drive the first pressing plate 42 to press the battery tray 6.

[0037] Furthermore, such as Figures 1-2 As shown, in this embodiment, the second pressing component 5 includes: a second pressing cylinder 51 and a second pressing plate 52;

[0038] The second pressing cylinder 52 is located around the hanger 3, and its output end is connected to the second pressing plate 52. It can drive the second pressing plate 52 to press the edge of the battery tray 6 to prevent air leakage during the testing process.

[0039] Furthermore, such as Figures 1-3 As shown, in this embodiment, the hanger 3 is provided with several guide shafts 31 around its perimeter, and the positioning fixture 1 is provided with a guide sleeve 11 coupled to the guide shafts 31 to prevent the hanger 3 from shaking when the first pressing cylinder 41 and the second pressing cylinder 52 move.

[0040] Furthermore, in this embodiment, it also includes: a linear module (not shown in the figure), the output end of which is connected to the hanger 3 and can drive the hanger 3 to move up and down, thereby driving the hanger 3 to perform large stroke movements.

[0041] Working principle: First, the battery tray 6 is placed on the positioning fixture 1 for positioning. The external drive mechanism drives the positioning fixture 1 to below the hanger 3. The linear module drives the hanger 3 to descend to the designated position. At the same time, the guide shaft 31 enters the corresponding guide sleeve 11. Then, the first pressing cylinder 41 drives the first pressing plate 42 to press the middle of the battery tray 6, and the second pressing cylinder 52 drives the second pressing plate 52 to press the battery tray 6 around its perimeter. Then, the drive cylinder 22 drives the sealing head 21 to seal the air leakage holes around the battery tray 6. Then the air tightness test can begin.

[0042] Above, refer to Figures 1-4 The present invention describes a battery tray airtightness testing fixture according to an embodiment of the present invention, which can achieve point-to-point sealing of the air leakage holes around the battery tray, with good sealing effect; it can achieve zoned pressing of the battery tray, with good pressing effect; and it greatly improves the accuracy of the test results.

[0043] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0044] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A battery tray airtightness detection tool, comprising a positioning jig for positioning of a battery tray, characterized in that, Also comprise: a plurality of sealing assemblies, each of the sealing assemblies is arranged on the positioning jig and used for sealing the side of the battery tray; a hanger arranged above the positioning jig; a plurality of first pressing assemblies connected with the hanger and used for pressing the positioning jig; a plurality of second pressing assemblies connected with the hanger and used for pressing the positioning jig.

2. The battery tray air tightness detection tool of claim 1, wherein, The sealing assembly comprises a sealing head and a driving cylinder; The driving cylinder is detachably connected with the positioning jig; The sealing head is connected with the driving cylinder, and the driving cylinder can drive the sealing head to seal the air leakage hole on the battery tray.

3. The battery tray air tightness detection tool of claim 2, wherein, The sealing head is made of rubber.

4. The battery tray air tightness detection tooling of claim 1, wherein, The first pressing assembly comprises a plurality of first pressing cylinders and a first pressing plate; The first pressing cylinders are arranged below the hanger, and the output ends of the first pressing cylinders are connected with the first pressing plate, so that the first pressing plate can be driven to press the battery tray.

5. The battery tray air tightness detection tool of claim 1, wherein, The second pressing assembly comprises a second pressing cylinder and a second pressing plate; The second pressing cylinder is arranged around the hanger, and the output end of the second pressing cylinder is connected with the second pressing plate, so that the second pressing plate can be driven to press the battery tray.

6. The battery tray air tightness detection tool of claim 1, wherein, A plurality of guide shafts are arranged around the hanger, and a guide sleeve is arranged on the positioning jig and coupled with the guide shafts.

7. The battery tray air tightness detection tooling of claim 1, wherein, Also comprise: a linear module, the output end of the linear module is connected with the hanger, and the hanger can be driven to move up and down.

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