Battery test fixture

Abstract

The utility model provides a battery test fixture, battery test fixture includes base, locating subassembly and adjusting subassembly, locating subassembly is provided on the base, locating subassembly includes locating shell and locating top plate, locating shell is provided with the holding cavity that is used for holding battery, the pole of battery exposes the outside of holding cavity, and the locating top plate is located in the holding cavity. The positioning top plate is connected with the positioning shell and abuts against the top of the battery, the adjusting assembly is movably arranged on the positioning shell, and the adjusting assembly is used for limiting the battery in the length direction and the width direction of the positioning shell. According to the battery test fixture, the positioning shell is used for accommodating the battery, the positioning top plate abuts against the top of the battery to limit the battery in the height direction, the battery is limited in the length direction and the width direction of the positioning shell through the adjusting assembly, and then the battery is positioned in multiple directions; therefore, the problem of poor compatibility of the battery test fixture in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of battery-related technology, and more specifically, to a battery testing fixture. Background Technology

[0002] Square aluminum-cased batteries are one of the main development directions in the new energy industry. They are widely used in various types of vehicles, transportation vehicles, construction machinery, ships and aircraft, and have a very broad development prospect.

[0003] Currently, square aluminum-cased batteries have positive and negative terminals extended from the cover plate for subsequent welding of CCS modules or other electrical connectors. To ensure that the terminals do not crack or leak under various operating conditions, it is necessary to conduct preliminary tests on the shear strength of the terminals to clarify their service limits under shear force. However, existing test fixtures offer limited adjustability and require the ability to accommodate square aluminum battery casings of corresponding sizes to perform shear strength tests. This makes it impossible to test the terminals for different sized square aluminum-cased batteries due to incompatibility between the casing and terminal positions. Different sized square aluminum battery casings require the design of corresponding test fixtures, but existing test fixtures are limited in their application and cannot accommodate aluminum casings of varying sizes.

[0004] As can be seen from the above, the current battery testing fixtures have poor adjustability and cannot be matched with batteries of various sizes, resulting in poor compatibility. Utility Model Content

[0005] The main objective of this invention is to provide a battery testing fixture to solve the problem of poor compatibility in existing battery testing fixtures.

[0006] To achieve the above objectives, according to one aspect of the present invention, a battery testing fixture is provided. The battery testing fixture includes a base, a positioning component, and an adjustment component. The positioning component is disposed on the base and includes a positioning housing and a positioning top plate. The positioning housing has a receiving cavity for accommodating a battery, with the battery terminals exposed outside the receiving cavity. The positioning top plate is connected to the positioning housing and abuts against the top of the battery. The adjustment component is movably disposed on the positioning housing and is used to limit the battery along the length and width directions of the positioning housing.

[0007] Furthermore, the positioning housing has a top opening, and a positioning top plate is disposed on one side of the top of the positioning housing along the height direction of the positioning housing. The portion of the battery exposed outside the accommodating cavity has a terminal post, and the positioning top plate abuts against the top surface of the portion of the battery exposed outside the accommodating cavity.

[0008] Furthermore, the positioning housing includes a base plate and multiple side plates. The base plate is mounted on the base and is used to support the battery. The multiple side plates are mounted on the base plate and are connected sequentially from end to end along the circumference of the base plate. The base plate and the multiple side plates form an accommodating cavity. The positioning top plate is detachably connected to the side plates, and the adjustment assembly is movably mounted on the side plates.

[0009] Furthermore, the multiple side plates include two sets of side plates, one set of side plates being arranged opposite each other along the length direction of the positioning housing, and the other set of side plates being arranged opposite each other along the width direction of the positioning housing, and at least one of the side plates in each set of side plates is provided with an adjustment component.

[0010] Furthermore, the base plate and the side plate are detachably connected by fasteners; and / or the side plates are detachably connected by fasteners; and / or the positioning top plate and the side plate are detachably connected by fasteners.

[0011] Furthermore, the adjustment assembly includes an adjustment rod and an abutment. The adjustment rod is rotatably mounted on the positioning housing, and the abutment is located inside the receiving cavity. The abutment is located at the end of the adjustment rod for contacting the battery. The adjustment rod drives the abutment to move toward or away from the battery by rotation.

[0012] Furthermore, the adjustment assembly also includes a slider and a positioning element. The slider is disposed on the top surface of the positioning housing for contacting the battery. The slider has a positioning hole, and at least a portion of the positioning element passes through the positioning hole and is connected to the positioning housing. The positioning element is used to lock the slider.

[0013] Furthermore, the slider is disposed on one of the two side plates of the positioning housing that are arranged opposite each other along the length direction, and the adjusting rod is disposed on the other side plate. The slider has an elongated positioning hole extending along the length direction of the positioning housing; or the slider is disposed on one of the two side plates of the positioning housing that are arranged opposite each other along the width direction, and the adjusting rod is disposed on the other side plate. The slider has an elongated positioning hole extending along the width direction of the positioning housing.

[0014] Furthermore, the battery test fixture also includes an inner pad, which is disposed inside the positioning housing and between the bottom plate of the positioning housing and the battery.

[0015] Furthermore, the inner pad block is fixedly connected to the base plate by fasteners.

[0016] Furthermore, a clearance space is formed between the outer periphery of the inner pad and the inner wall of the positioning housing to avoid the battery tab.

[0017] Furthermore, the base includes a connecting rod, a mounting cylinder, and a positioning pin. The first end of the connecting rod is connected to the positioning housing, and the second end of the connecting rod extends into the interior of the mounting cylinder. The positioning pin passes through the mounting cylinder and the connecting rod to position the mounting cylinder and the connecting rod.

[0018] By applying the technical solution of this utility model, the battery test fixture of this application uses a positioning shell to accommodate the battery, and a positioning top plate abuts against the top of the battery to limit the battery in the height direction. The adjustment component can limit the battery in the length and width directions of the positioning shell, thereby realizing the multi-directional positioning of the battery, which is beneficial to improving the stability of the battery and avoiding the phenomenon of battery displacement.

[0019] This application uses a positioning top plate that abuts against the top surface of the battery. By adjusting the height of the positioning top plate, it can be adapted to position batteries of different heights. An adjustment component is used to limit the battery in the length and width directions. Furthermore, by controlling the position of the adjustment component, it can be adapted to batteries of different sizes. The battery testing fixture of this application has the feature of being able to clamp batteries of different sizes, thus improving its applicability.

[0020] This application uses two independently set components, the positioning shell and the positioning top plate, so that the bar plate fixed at the pole can be exposed, which facilitates the subsequent shear force test of the pole. The overall structure is simple and easy to operate. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0022] Figure 1 A three-dimensional structural schematic diagram of the battery testing fixture of this utility model is shown;

[0023] Figure 2 An exploded view of the battery testing fixture of this utility model is shown;

[0024] Figure 3 A schematic diagram of the slider and positioning element of this utility model is shown;

[0025] Figure 4 A schematic diagram of the adjusting rod and the abutment of this utility model is shown;

[0026] Figure 5 A schematic diagram of the installation structure of the inner pad block of this utility model is shown.

[0027] The above figures include the following reference numerals:

[0028] 10. Positioning assembly; 110. Positioning housing; 111. Base plate; 112. Side plate; 120. Positioning top plate; 20. Adjustment assembly; 210. Adjustment rod; 220. Abutment joint; 230. Slider; 231. Positioning hole; 240. Positioning component; 30. Base; 310. Connecting rod; 320. Mounting cylinder; 330. Positioning pin; 40. Inner pad block. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0032] To address the poor compatibility issue of existing battery testing fixtures, this application provides a battery testing fixture for fixing a battery with a square casing. This facilitates shear strength testing of the battery terminals, ensuring that the terminals of the square battery do not crack or leak under various operating conditions.

[0033] The battery terminals and the contact plate are welded and fixed. The test fixture holds the contact plate and pulls it to complete the preliminary shear strength test of the terminal. It should be noted that the test fixture is an existing shear force test fixture.

[0034] The battery in this embodiment is a square battery, specifically a square aluminum-cased battery, meaning the battery casing is a cubic structure.

[0035] like Figures 1 to 5As shown, the battery test fixture includes a base 30, a positioning component 10, and an adjustment component 20. The positioning component 10 is disposed on the base 30 and includes a positioning housing 110 and a positioning top plate 120. The positioning housing 110 has a receiving cavity for accommodating the battery. One of the battery's terminals and the electrode are exposed outside the receiving cavity, while the other terminal and the electrode are disposed inside the receiving cavity. The electrode and the terminal are welded and fixed. The positioning top plate 120 is connected to the positioning housing 110 and abuts against the top of the battery. The adjustment component 20 is movably disposed on the positioning housing 110 and is used to limit the battery along the length and width directions of the positioning housing 110.

[0036] Specifically, the battery testing fixture of this application uses a positioning housing 110 to house the battery, providing installation for battery placement. A positioning top plate 120 abuts against the top of the battery, and the positioning top plate 120 and the positioning housing 110 cooperate to limit the battery in the height direction. By adjusting the position of the adjusting component 20, the battery is limited along the length and width directions of the positioning housing 110, thereby achieving multi-directional battery positioning, which helps to improve the stability of the limited battery and prevent the battery from shifting.

[0037] The length direction of base 30 is Figure 1 As shown in the X direction, the width direction of the base 30 is... Figure 1 As shown in the Y direction, the height direction of the base 30 is... Figure 1 The Z direction is shown.

[0038] In this embodiment, the positioning top plate 120 is fixedly connected to the positioning housing 110 by bolts. Specifically, the positioning housing 110 has threaded holes that mate with the bolts. The distance between the positioning top plate 120 and the positioning housing 110 is controlled by controlling the depth to which the bolts are screwed into the threaded holes. This application allows the positioning top plate 120 to abut against the top surface of the battery, and its height can be adjusted to accommodate batteries of different heights. The adjusting component 20 is used to limit the battery's length and width, and the position of the adjusting component 20 can be controlled to accommodate batteries of different sizes. Therefore, this battery testing fixture is suitable for clamping batteries of different sizes, thus improving its applicability.

[0039] like Figure 1 As shown, the positioning housing 110 has a top opening, and a positioning top plate 120 is disposed on one side of the top of the positioning housing 110 along the height direction of the positioning housing 110. The portion of the battery exposed outside the accommodating cavity has a tab, and the positioning top plate 120 abuts against the top surface of the portion of the battery exposed outside the accommodating cavity.

[0040] The plasmid is exposed inside the cavity to facilitate shear strength testing of the plasmid.

[0041] This application uses two independently set components, the positioning housing 110 and the positioning top plate 120, so that the plate fixed at the pole can be exposed, which facilitates the subsequent shear force test of the pole. The overall structure is simple and easy to operate.

[0042] In this embodiment, one tab on the battery protrudes outside the accommodating cavity for use with an external test fixture to perform shear strength testing, while the other tab is disposed inside the positioning housing 110.

[0043] like Figure 2 As shown, the positioning housing 110 includes a base plate 111 and multiple side plates 112. The base plate 111 is mounted on the base 30 and is used to support the battery. The multiple side plates 112 are mounted on the base plate 111 and are connected sequentially from end to end along the circumference of the base plate 111. The base plate 111 and the multiple side plates 112 form an accommodating cavity. The positioning top plate 120 is detachably connected to the side plates 112. The adjustment assembly 20 is movably mounted on the side plates 112.

[0044] The base plate 111 supports the battery located inside the accommodating cavity. Multiple side plates 112 are sequentially connected, and the base plate 111 and side plates 112 cooperate to form a positioning housing 110 with a top opening. The top plate is detachably connected to the top surface of the side plates 112 by bolts. The top surface of the side plates 112 has threaded holes, and the bolts are rotatably connected through the threaded holes to adjust the distance between the positioning top plate 120 and the positioning housing 110 along the height direction by rotating the bolts.

[0045] In this embodiment, the adjustment component 20 is disposed on the side plate 112 to facilitate operation of the adjustment component 20, and the structure of the multiple side plates 112 is configured to provide multiple installation positions for the adjustment component 20, so as to facilitate the limiting of the battery along the length and width directions of the positioning housing 110.

[0046] The side plates 112 are detachably connected to each other and to the bottom plate 111 using fasteners to facilitate assembly and disassembly. The fasteners are structural components such as bolts.

[0047] In this embodiment, four side plates 112 are provided. The bottom plate 111 and the side plates 112 cooperate to form a cubic accommodating cavity. The four side plates 112 include two sets of side plates 112. One set of side plates 112 is arranged opposite to each other along the length direction of the positioning housing 110, and the other set of side plates 112 is arranged opposite to each other along the width direction of the positioning housing 110. At least one of the side plates 112 in each set of side plates 112 is provided with an adjustment component 20.

[0048] Two side plates 112 are arranged opposite each other along the length direction, and the other two side plates 112 are arranged opposite each other along the width direction, forming a cubic space with the four side plates 112.

[0049] It is understandable that both sets of side plates 112 are equipped with adjustment components 20, which fix the battery along the length and width directions of the positioning housing 110 by pushing the battery.

[0050] In one specific embodiment of this example, an adjustment component 20 is provided on one of the two side plates 112 of each group. The battery is pushed by the adjustment component 20, one side of the battery abuts against the adjustment component 20, and the other side of the battery abuts against the side wall of the positioning housing 110, thereby fixing the battery.

[0051] In another specific embodiment of this example, adjustment components 20 are provided on both side plates 112. The two adjustment components 20 abut against both sides of the battery to fix the battery. At this time, the battery can be spaced apart from the side wall of the positioning housing 110.

[0052] like Figure 4 As shown, the adjustment assembly 20 includes a detachable adjustment rod 210 and an abutment 220. The adjustment rod 210 is rotatably mounted on the positioning housing 110, and the abutment 220 is located inside the accommodating cavity. The abutment 220 is located at the end of the adjustment rod 210 for contacting the battery. The adjustment rod 210 drives the abutment 220 to move toward or away from the battery by rotation.

[0053] The moving of the drive joint 220 is achieved by adjusting the adjusting rod 210. The drive joint 220 has an abutting surface, which abuts against the battery surface. The area of ​​the abutting surface is larger than the cross-sectional area of ​​the adjusting rod 210. The abutting surface provides a larger contact area, which helps to avoid...

[0054] This application uses two components, an adjusting rod 210 and an abutment 220, to facilitate the removal of the adjusting rod 210 and the abutment 220 after disassembly.

[0055] In this embodiment, the side plate 112 of the positioning housing 110 has a threaded hole, and the adjusting rod 210 has an external thread. The adjusting rod 210 adjusts its extension length by rotating with the threaded hole.

[0056] like Figure 2 and Figure 3 As shown, the adjustment assembly 20 also includes a slider 230 and a positioning member 240. The slider 230 is disposed on the top surface of the positioning housing 110 for contacting the battery. The slider 230 has a positioning hole 231. At least a portion of the positioning member 240 passes through the positioning hole 231 and is connected to the positioning housing 110. The positioning member 240 is used to lock the slider 230.

[0057] The slider 230 is fixed on the positioning housing 110 and is used to contact the battery to limit its position.

[0058] Specifically, the positioning housing 110 has a mounting hole, and the positioning member 240 extends into the interior of the mounting hole after passing through the positioning hole 231. The interior of the mounting hole has an internal thread, and the positioning member 240 has an external thread. The positioning member 240 and the mounting hole are locked together by the thread, thereby fixing the slider 230.

[0059] In this embodiment, multiple sliders 230 can be provided on one side plate 112, and all sliders 230 abut against the battery, which helps to improve the stability of the abutment. The sliders 230 are adjustablely positioned on the positioning housing 110, and the positioning hole 231 is an elongated hole, which is used to provide the adjustment amount of the sliders 230.

[0060] In one specific embodiment of this example, the slider 230 is disposed on one of the two side plates 112 of the positioning housing 110 that are disposed opposite each other along the length direction, and the adjusting rod 210 is disposed on the other side plate 112. The slider 230 has an elongated positioning hole 231 extending along the length direction of the positioning housing 110.

[0061] In another specific embodiment of this example, the slider 230 is disposed on one of the two side plates 112 of the positioning housing 110 that are disposed opposite each other in the width direction, and the adjusting rod 210 is disposed on the other side plate 112. The slider 230 has an elongated positioning hole 231 extending in the width direction of the positioning housing 110.

[0062] like Figure 2 and Figure 5 As shown, the battery test fixture also includes an inner pad 40, which is disposed inside the positioning housing 110 and between the base plate 111 of the positioning housing 110 and the battery.

[0063] The inner pad 40 is detachably disposed inside the positioning housing 110. By setting the inner pad 40, the battery can be raised, thereby achieving a gap between the battery and the bottom surface of the positioning housing 110. By setting the inner pad 40, a clearance space is formed between the outer periphery of the inner pad 40 and the inner wall surface of the positioning housing 110, which avoids the battery tabs. One battery tab is exposed outside the receiving cavity, and the other tab is received inside the clearance space.

[0064] The positioning housing 110 of the battery testing fixture of this application has an internal clearance space for accommodating the battery contacts, thereby allowing the battery to be fixed after the contacts have been welded. Compared to the prior art, where the battery portion inside the fixture cannot accommodate the contacts due to interference, the internal pad 40 of the battery testing fixture of this application avoids interference between the contacts and the positioning housing 110. Before positioning the battery, the testing fixture of this application can first weld and fix the two contacts to the terminals, and then place the battery into the interior of the positioning housing 110, ensuring the integrity of the test.

[0065] Specifically, the inner pad 40 is fixedly connected to the base plate 111 by fasteners, such as bolts.

[0066] In this embodiment, the thickness of the inner pad 40 is set according to the adaptability of the battery placed inside the casing. The structure of this application has better adaptability and is conducive to improving the scope of use.

[0067] like Figure 1 and Figure 2 As shown, the base 30 includes a connecting rod 310, a mounting cylinder 320, and a positioning pin 330. The first end of the connecting rod 310 is connected to the positioning housing 110, and the second end of the connecting rod 310 extends into the interior of the mounting cylinder 320. The positioning pin 330 passes through the mounting cylinder 320 and the connecting rod 310 and is used to position the mounting cylinder 320 and the connecting rod 310.

[0068] The connecting rod 310 is fixedly connected to the base plate 111 of the positioning housing 110, which can be achieved by means of structural components such as bolts.

[0069] Specifically, the structure of the base 30 in this application can be adapted to be connected to positioning housings 110 of different sizes, which helps to improve the scope of application and thus improve the user experience.

[0070] In this embodiment, the second end of the connecting rod 310 has a first hole structure, and the mounting cylinder 320 has a second hole structure. When the second end of the connecting rod 310 extends into the interior of the mounting cylinder 320, the first hole structure and the second hole structure are connected to form a channel. The positioning pin 330 is inserted into the interior of the channel to achieve axial and circumferential positioning of the connecting rod 310 and the mounting cylinder 320, thereby achieving the stability of the overall connection and avoiding misalignment and shaking.

[0071] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0072] The battery test fixture of this application uses a positioning housing 110 to house the battery, and a positioning top plate 120 abuts against the top of the battery to limit the battery in the height direction. The adjustment component 20 limits the battery in the length and width directions of the positioning housing 110, thereby achieving multi-directional positioning of the battery, which helps to improve the stability of the battery and avoid the phenomenon of battery displacement.

[0073] This application uses a positioning top plate 120 that abuts against the top surface of the battery. The height of the positioning top plate 120 can be adjusted to accommodate batteries of different heights. An adjustment component 20 is used to limit the battery in the length and width directions. Furthermore, the position of the adjustment component 20 can be controlled to accommodate batteries of different sizes. The battery testing fixture of this application has the feature of being able to clamp batteries of different sizes, thus improving its applicability.

[0074] This application uses two independently set components, the positioning housing 110 and the positioning top plate 120, so that the plate fixed at the pole can be exposed, which facilitates the subsequent shear force test of the pole. The overall structure is simple and easy to operate.

[0075] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0076] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0077] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0078] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery testing fixture, characterized in that, include: Base (30); A positioning assembly (10) is disposed on the base (30). The positioning assembly (10) includes a positioning housing (110) and a positioning top plate (120). The positioning housing (110) has a receiving cavity for accommodating a battery. One of the battery tabs is exposed outside the receiving cavity, and the other tab is disposed inside the receiving cavity. The positioning top plate (120) is connected to the positioning housing (110) and abuts against the top of the battery. An adjustment component (20) is movably disposed on the positioning housing (110), the adjustment component (20) being used to limit the battery along the length and width directions of the positioning housing (110).

2. The battery testing fixture according to claim 1, characterized in that, The positioning housing (110) has a top opening, and the positioning top plate (120) is disposed on one side of the top of the positioning housing (110) along the height direction of the positioning housing (110). The battery has the tab on the part exposed outside the accommodating cavity, and the positioning top plate (120) abuts against the top surface of the part of the battery exposed outside the accommodating cavity.

3. The battery testing fixture according to claim 1, characterized in that, The positioning housing (110) includes: A base plate (111) is disposed on the base (30), and the base plate (111) is used to support the battery; Multiple side plates (112) are disposed on the base plate (111) and are connected sequentially from end to end along the circumference of the base plate (111). The base plate (111) and the multiple side plates (112) surround the accommodating cavity. The positioning top plate (120) is detachably connected to the side plates (112). The adjustment assembly (20) is movably disposed on the side plates (112).

4. The battery testing fixture according to claim 3, characterized in that, The plurality of side plates (112) include two sets of side plates (112), one set of side plates (112) being arranged opposite each other along the length direction of the positioning housing (110), and the other set of side plates (112) being arranged opposite each other along the width direction of the positioning housing (110), and the adjustment component (20) is provided on at least one of the side plates (112) in each set of side plates (112).

5. The battery testing fixture according to claim 4, characterized in that, The base plate (111) and the side plate (112) are detachably connected by fasteners; and / or The side plates (112) are detachably connected to each other by fasteners; and / or The positioning top plate (120) and the side plate (112) are detachably connected by fasteners.

6. The battery testing fixture according to claim 1, characterized in that, The adjustment component (20) includes: An adjusting rod (210) is rotatably mounted on the positioning housing (110); An abutment (220) is disposed inside the accommodating cavity. The abutment (220) is disposed at the end of the adjusting rod (210) for abutting against the battery. The adjusting rod (210) drives the abutment (220) to move toward or away from the battery by rotation.

7. The battery testing fixture according to claim 6, characterized in that, The adjustment component (20) further includes: A slider (230) is disposed on the top surface of the positioning housing (110) for abutting against the battery, and the slider (230) has a positioning hole (231); A positioning element (240) is provided, at least a portion of which passes through the positioning hole (231) and is connected to the positioning housing (110). The positioning element (240) is used to lock the slider (230).

8. The battery testing fixture according to claim 7, characterized in that, The slider (230) is disposed on one of the two side plates (112) of the positioning housing (110) arranged opposite each other along the length direction, and the adjusting rod (210) is disposed on the other side plate (112). The slider (230) has an elongated positioning hole (231) extending along the length direction of the positioning housing (110); or The slider (230) is disposed on one of the two side plates (112) of the positioning housing (110) that are disposed opposite each other in the width direction, and the adjusting rod (210) is disposed on the other side plate (112). The slider (230) has an elongated positioning hole (231) extending in the width direction of the positioning housing (110).

9. The battery testing fixture according to any one of claims 1 to 8, characterized in that, The battery test fixture also includes an inner pad (40), which is disposed inside the positioning housing (110) and between the bottom plate (111) of the positioning housing (110) and the battery.

10. The battery testing fixture according to claim 9, characterized in that, The inner pad (40) is fixedly connected to the base plate (111) by fasteners.

11. The battery testing fixture according to claim 9, characterized in that, An avoidance space is formed between the outer periphery of the inner pad (40) and the inner wall of the positioning housing (110) to avoid the battery tab.

12. The battery testing fixture according to any one of claims 1 to 8, characterized in that, The base (30) includes: A connecting rod (310), the first end of which is connected to the positioning housing (110); Mounting cylinder (320), the second end of the connecting rod (310) extends into the interior of the mounting cylinder (320); A positioning pin (330) passes through the mounting cylinder (320) and the connecting rod (310) to position the mounting cylinder (320) and the connecting rod (310).

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