Limiting clamping structure compatible with cylindrical batteries of multiple specifications

Abstract

The utility model discloses a spacing clamping structure compatible with multi-specification cylindrical batteries, which comprises one or more groups of clamping assemblies, each group of clamping assemblies comprises two clamping assemblies which are arranged oppositely and can move towards each other or away from each other, and the one or more groups of clamping assemblies can be arranged on a test device support; one or more pairs of battery supporting groove sets are formed in the two clamping assemblies, each pair of battery supporting groove sets comprises the battery supporting groove sets which are formed in the two clamping assemblies respectively and are arranged oppositely, and each battery supporting groove set comprises a plurality of battery supporting grooves which are different in size and are concentrically arranged in the direction perpendicular to the moving direction of the clamping assemblies. The length of the cylindrical battery is matched by adjusting the distance between the two clamping assemblies, and the cylindrical battery can be limited, supported and clamped by placing the cylindrical battery on the two opposite battery supporting grooves of the two clamping assemblies. And different battery supporting grooves are matched with cylindrical batteries with different sizes and different models, so that the compatibility is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing, and in particular to a position limiting clamping structure compatible with cylindrical batteries of multiple specifications. Background Art

[0002] Cylindrical batteries boast mature production processes, low pack costs, and high battery yield and pack consistency. Cylindrical batteries are easily adaptable to various configurations and are well-suited to the spatial design and layout of electric vehicles. With the continued expansion of the electric vehicle market and increasing demands for range, vehicle manufacturers are placing higher demands on power battery energy density, manufacturing costs, cycle life, and product attributes.

[0003] Taking cylindrical lithium batteries as an example, models include 32140 / 4680 / 4695 / 60200, etc. These cylindrical lithium batteries require charge and discharge testing during the R&D and production process. Currently, testing of cylindrical batteries on the market is achieved by fitting probes to the positive and negative poles of the cylindrical battery. One side of the positive and negative probes uses a spring-loaded structure. By pressing the probes against the poles, the springs contract to a certain stroke, thereby clamping the battery for testing. Existing technologies mostly use horizontal test fixtures to clamp cylindrical batteries of different diameters. This fixture requires replacing insulating limit blocks for batteries of different diameters. The replacement process is cumbersome, not only costly but also difficult to store.

[0004] Therefore, how to design a cylindrical battery limiting clamping structure with strong compatibility, simple structure and easy operation is an urgent problem to be solved. Utility Model Content

[0005] The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology and to provide a cylindrical battery limiting and clamping structure with strong compatibility, simple structure and convenient operation.

[0006] To achieve this purpose, the limiting clamping structure designed by the utility model for being compatible with cylindrical batteries of multiple specifications includes one or more groups of clamping components, each group of clamping components includes two clamping components that are arranged opposite each other and can move toward or away from each other, and one or more groups of clamping components can be arranged on a test device bracket; two of the clamping components are provided with one or more pairs of battery support slot groups, and each pair of battery support slot groups includes battery support slot groups that are respectively provided on the two clamping components and arranged opposite each other, and each of the battery support slot groups includes multiple battery support slots of different sizes that are arranged concentrically and perpendicular to the moving direction of the clamping component.

[0007] Furthermore, the clamping assembly includes a limiting frame with a limiting piece installation slot opened in the middle and one or more limiting pieces detachably fixed in the limiting piece installation slot, and the battery support slot includes a limiting piece battery support slot opened on the limiting piece.

[0008] Furthermore, the battery support groove also includes a limiting frame battery support groove opened on both axial side surfaces of the limiting frame.

[0009] Furthermore, the size of the battery support groove decreases from the inner side to the outer side of the clamping assembly.

[0010] Furthermore, the position limiting clamping structure compatible with cylindrical batteries of multiple specifications also includes a distance adjustment component that can guide the movement of the clamping component, adjust the relative position of two clamping components in the same group, and position them.

[0011] Furthermore, each group of the clamping assemblies includes a first clamping assembly and a second clamping assembly, and the distance adjustment assembly includes a distance adjustment rod arranged along the moving direction of the clamping assembly and passing through the first clamping assembly and the second clamping assembly, a first distance adjustment positioning structure is connected between the distance adjustment rod and the first clamping assembly, and a second distance adjustment positioning structure is connected between the distance adjustment rod and the second clamping assembly.

[0012] Furthermore, the distance-adjusting rod includes a threaded rod section and a polished rod section, the threaded rod section passes through the first clamping assembly, and the polished rod section passes through the second clamping assembly; a first distance-adjusting positioning structure is connected between the threaded rod section and the first clamping assembly, and a second distance-adjusting positioning structure is connected between the polished rod section and the second clamping assembly.

[0013] Furthermore, the first distance adjustment and positioning structure includes at least two locking nuts threadedly connected to the threaded rod segment and located on the axial front and rear sides of the first clamping assembly.

[0014] Furthermore, the second clamping assembly is detachably fixed to the end of the polished rod segment through the second distance adjustment positioning structure.

[0015] Furthermore, the second distance adjustment and positioning structure includes a second clamping assembly fixing plate that is detachably fixed to the end of the polished rod segment, and the second clamping assembly is detachably fixed to the second clamping assembly fixing plate.

[0016] The utility model discloses beneficial effect is: through the distance between two clamping components is adjusted to match the length of cylindrical battery, places cylindrical battery on the opposite two battery support grooves of two clamping components can complete the location support and clamping of cylindrical battery. Different battery support groove matches different size, different model cylindrical battery, and the compatibility is strong. Novel location clamping structure, simple operation, convenient adjustment, small space occupation, low production cost meet the location clamping test demand of multiple specifications size cylindrical battery, effectively improve the test efficiency of different size, different model cylindrical battery. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the perspective drawing of the location clamping structure in the utility model;

[0018] Figure 2 It is the relative arrangement structure perspective drawing of two clamping components of the location clamping structure in the utility model;

[0019] Figure 3 It is the relative arrangement structure perspective drawing of two limiting frames of the location clamping structure in the utility model;

[0020] Figure 4 It is the relative arrangement structure perspective drawing of two limiting sheets of the location clamping structure in the utility model;

[0021] Figure 5 It is the perspective drawing of the distance adjusting rod in the utility model;

[0022] Figure 6 It is the perspective drawing of the second clamping component fixed plate in the utility model;

[0023] Among them, 101 is the first clamping component, 102 is the second clamping component, 103 is the limiting sheet battery support groove, 104 is the limiting sheet installation groove, 105 is the limiting frame, 106 is the limiting sheet, 107 is the distance adjusting rod (107.1 is the threaded rod section, 107.2 is the light rod section), 108 is the locking nut, 109 is the second clamping component fixed plate, 110 is the distance adjusting rod threaded hole, 111 is the bolt positioning counterbore, 112 is the bolt through-hole, 113 is the distance adjusting rod installation hole, 114 is the fixed plate first sink hole, 115 is the fixed plate second sink hole, 116 is the frame threaded hole, 117 is the limiting frame battery support groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, rather than all the embodiments. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0025] like Figure 1 As shown in FIG6 , the position limiting and clamping structure designed by the present invention and compatible with cylindrical batteries of multiple specifications includes the following two embodiments:

[0026] Example 1:

[0027] like Figure 2 As shown in FIG. 4 , the position limiting clamping structure compatible with cylindrical batteries of various specifications includes two clamping assemblies arranged opposite each other and movable toward or away from each other; each of the two clamping assemblies is provided with a battery support slot group arranged opposite each other, and each battery support slot group includes a plurality of battery support slots of different sizes arranged concentrically and perpendicular to the moving direction of the clamping assembly. The clamping assembly includes a position limiting frame 105 with a position limiting plate mounting slot 104 in the middle and one or more position limiting plates 106 detachably fixed in the position limiting plate mounting slot 104. A position limiting frame battery support slot 117 is provided on each of the axial side surfaces of the position limiting frame 105, and a position limiting plate battery support slot 103 is provided on each position limiting plate 106.

[0028] Example 2:

[0029] like Figure 1 As shown, its overall structure is basically the same as that of the first embodiment, except that it also includes a distance adjustment component that can guide the movement of the clamping component, adjust the relative position of the two clamping components, and position them. The clamping component includes a first clamping component 101 and a second clamping component 102. The distance adjustment component includes a distance adjustment rod 107 arranged along the moving direction of the clamping component and passing through the first clamping component 101 and the second clamping component 102. A first distance adjustment positioning structure is connected between the distance adjustment rod 107 and the first clamping component 101, and a second distance adjustment positioning structure is connected between the distance adjustment rod 107 and the second clamping component 102. Figure 5As shown, the pitch-adjusting rod 107 includes a threaded rod section 107.1 and a polished rod section 107.2. The threaded rod section 107.1 passes through the first clamping assembly 101, and the polished rod section 107.2 passes through the second clamping assembly 102. A first pitch-adjusting positioning structure is connected between the threaded rod section 107.1 and the first clamping assembly 101, and a second pitch-adjusting positioning structure is connected between the polished rod section 107.2 and the second clamping assembly 102. Figure 1 As shown, the first distance adjustment positioning structure includes at least two locking nuts 108 that are threadedly connected to the threaded rod segment 107.1 and located on the axial front and rear sides of the first clamping assembly 101. The second clamping assembly 102 is detachably fixed to the end of the polished rod segment 107.2 through the second distance adjustment positioning structure. The second distance adjustment positioning structure includes a second clamping assembly fixing plate 109 that is detachably fixed to the end of the polished rod segment 107.2: Figure 5 As shown in FIG6 , the bolt passes through the first countersunk hole 114 of the fixing plate and is threadedly connected to the threaded hole 110 of the pitch adjusting rod. Figure 1 As shown, the second clamping assembly fixing plate 109 is detachably fixed to the back side of the second clamping assembly 102 by bolts.

[0030] The structure of the second embodiment is described below:

[0031] The limiting clamping structure compatible with multiple specifications of cylindrical batteries includes two clamping components arranged opposite each other, namely a first clamping component 101 and a second clamping component 102. The first clamping component 101 and the second clamping component 102 both include a limiting frame 105 with a limiting piece mounting groove 104 in the middle and one or more limiting pieces 106 detachably fixed in the limiting piece mounting groove 104 (bolts pass through the bolt positioning countersunk holes 111 and the bolt holes 112 of the limiting pieces 106 and are connected to the frame threaded holes 116). A limiting frame battery support groove 117 is respectively provided on the axial side surfaces of the limiting frame 105, and a limiting piece battery support groove 103 is provided on each limiting piece 106. The limiting plate battery support groove 103 and the limiting frame battery support groove 117 are both semicircular grooves, corresponding to the outer surface shape of the cylindrical battery. The battery support groove gradually decreases from the inside to the outside of the clamping assembly. The axial surface of the limiting plate 106 or the limiting frame 105 located on the outside becomes the limiting surface of the axial surface of the limiting plate 106 or 105 on the inside, which is used to clamp the two end faces of the cylindrical battery.

[0032] The threaded rod section 107.1 of the pitch-adjusting rod 107 passes through the first clamping assembly 101, and the polished rod section 107.2 passes through the second clamping assembly 102. The first clamping assembly 101 is movable on the pitch-adjusting rod 107, and the second clamping assembly 102 is fixed to the end of the pitch-adjusting rod 107. According to the diameter of the cylindrical battery to be tested, one end of the cylindrical battery to be tested is placed in a battery support groove of the second clamping assembly 102 to support one end of the cylindrical battery to be tested. The position of the first clamping assembly 101 on the pitch-adjusting rod 107 is then adjusted according to the height and length of the cylindrical battery to be tested. Two locking nuts 108 are located on the axial front and rear sides of the first clamping assembly 101. After the position of the first clamping assembly 101 is adjusted, the locking nuts 108 are used to lock the first clamping assembly 101, so that the first clamping assembly 101 is positioned on the pitch-adjusting rod 107. The first clamping assembly 101 and the second clamping assembly 102 form a storage compartment for the cylindrical battery to be tested. The limiting frame 105 and the limiting piece 106 are both made of black bakelite. The opening width of the limiting piece installation slot 104 can be increased to insert more limiting pieces 106. The limiting pieces 106 can be used in combination of two or three according to the battery diameter.

[0033] Based on the above-mentioned embodiment 2, in actual applications, in order to more efficiently adapt to the needs of cylindrical batteries of different specifications, one or more groups of clamping assemblies can be arranged on the same test device bracket. At the same time, one or more pairs of battery support slot groups arranged opposite to each other can be opened on the two clamping assemblies in the same group.

[0034] When clamping and limiting two or more cylindrical batteries of different lengths and diameters, the two or more cylindrical batteries can be placed in the battery support grooves of two or more groups of clamping assemblies respectively, and clamping and limiting can be performed at the same time.

[0035] When clamping and limiting two or more cylindrical batteries with the same length and different diameters, the two or more cylindrical batteries can be placed separately in the battery support grooves of two or more groups of clamping assemblies, and clamping and limiting can be performed at the same time; or two or more cylindrical batteries can be placed separately in different pairs of battery support groove groups of two clamping assemblies in the same group, and clamping and limiting can be performed at the same time.

[0036] When clamping and limiting two or more cylindrical batteries with different lengths and the same diameter, the two or more cylindrical batteries can be placed in the battery support grooves of two or more groups of clamping assemblies respectively, and clamping and limiting can be performed at the same time.

[0037] The clamping mechanism is designed with a mechanism for quickly replacing the limiting plates. Specifically, the limiting plate mounting slots 104 on each limiting frame 105 not only facilitate the installation and removal of the limiting plates 106, but also, through the adjustable opening width, allow the user to flexibly increase or decrease the number of limiting plates according to the battery diameter. This design significantly improves the versatility and adaptability of the device, allowing it to clamp batteries of various specifications without having to replace the entire clamping assembly.

[0038] Furthermore, to further enhance operational convenience, the distance adjustment rod 107 in the distance adjustment assembly can be equipped with a scale mark or pointer, allowing the user to intuitively understand and adjust the relative distance between the two clamping assemblies. This detailed design allows the user to quickly and accurately set the distance between the clamping assemblies based on the length of the cylindrical battery to be tested, thereby improving work efficiency and test accuracy.

[0039] In terms of safety, considering the potential risks during battery testing, the limiting clamping structure also uses non-conductive materials (such as black bakelite) as the main materials for the limiting frame 105 and the limiting plate 106. This choice not only ensures the equipment's electrical safety compliance, but also effectively avoids potential short circuit risks caused by the material's conductivity, providing additional safety during the testing process.

[0040] Finally, to enhance the stability and durability of the device, all key components, such as the pitch-adjusting rod 107, locking nut 108, and second clamping assembly fixing plate 109, are made of high-strength, corrosion-resistant materials and precision-machined to ensure close fit and smooth operation. These design measures work together to ensure that the multi-size cylindrical battery-compatible limited clamping structure designed in this utility model maintains stable performance under various complex operating conditions, meeting the needs of long-term, high-frequency use.

[0041] In summary, the present invention matches the length of the cylindrical battery by adjusting the distance between the two clamping assemblies, and places the cylindrical battery on the two opposite battery support grooves of the two clamping assemblies to complete the limited support and clamping of the cylindrical battery. Different battery support grooves are used to match cylindrical batteries of different sizes and models, and have strong compatibility. The limited clamping structure is novel, simple to operate, easy to adjust, takes up little space, and has low production costs. It meets the limited clamping test requirements of cylindrical batteries of multiple specifications and sizes, and effectively improves the testing efficiency of cylindrical batteries of different sizes and models.

[0042] It should be noted that the description of the above technical solutions is illustrative only. This specification may be embodied in various forms and should not be construed as limiting the technical solutions set forth herein. Rather, these descriptions are provided so that the disclosure of this utility model will be thorough and complete and will fully convey the scope of this disclosure to those skilled in the art. Furthermore, the technical solutions of the present utility model are limited only by the scope of the claims. Where the terms "including," "having," and "comprising" are used in this specification, further parts or other components may also be included. The terms used may generally be singular but may also represent the plural. It should be noted that although the terms "first," "second," "top," "bottom," "one side," "other side," "end," and "other end" may appear and be used in this specification to describe various components, these components and parts should not be limited by these terms. These terms are used solely to distinguish one component or part from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the scope of this specification. Top and bottom components may also be interchanged or switched under certain circumstances; components at one end and at the other end may have the same or different properties.

[0043] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and is susceptible to numerous variations. Any simple modifications, equivalent variations, and modifications to the above embodiments based on the technical essence of the present invention shall be deemed to fall within the scope of protection of the present invention.

Claims

1. A position limiting clamping structure compatible with cylindrical batteries of various specifications, characterized by: It includes one or more groups of clamping assemblies, each group of clamping assemblies includes two clamping assemblies arranged opposite each other and movable toward or away from each other, and one or more groups of clamping assemblies can be arranged on a test device bracket; two of the clamping assemblies are provided with one or more pairs of battery support slot groups, and each pair of battery support slot groups includes battery support slot groups respectively arranged on the two clamping assemblies and arranged opposite each other, and each of the battery support slot groups includes multiple battery support slots of different sizes arranged concentrically and perpendicular to the moving direction of the clamping assembly.

2. The position limiting and clamping structure compatible with multiple-specification cylindrical batteries according to claim 1, characterized in that: The clamping assembly comprises a limiting frame (105) with a limiting piece installation slot (104) provided in the middle thereof and one or more limiting pieces (106) detachably fixed in the limiting piece installation slot (104); the battery support slot comprises a limiting piece battery support slot (103) provided on the limiting piece (106).

3. The position limiting and clamping structure compatible with multiple-specification cylindrical batteries according to claim 2, characterized in that: The battery support groove further comprises a limiting frame battery support groove (117) opened on both axial side surfaces of the limiting frame (105).

4. The position limiting and clamping structure compatible with multiple-size cylindrical batteries according to claim 1, 2, or 3, characterized in that: The size of the battery supporting groove decreases from the inner side to the outer side of the clamping assembly.

5. The position limiting and clamping structure compatible with multiple-specification cylindrical batteries according to claim 1, characterized in that: It also includes a distance adjustment component which can guide the movement of the clamping component, adjust the relative positions of two clamping components in the same group, and position them.

6. The position limiting and clamping structure compatible with multiple-specification cylindrical batteries according to claim 5, characterized in that: Each group of the clamping assemblies comprises a first clamping assembly (101) and a second clamping assembly (102); the distance adjustment assembly comprises a distance adjustment rod (107) arranged along the moving direction of the clamping assembly and passing through the first clamping assembly (101) and the second clamping assembly (102); a first distance adjustment positioning structure is connected between the distance adjustment rod (107) and the first clamping assembly (101); and a second distance adjustment positioning structure is connected between the distance adjustment rod (107) and the second clamping assembly (102).

7. The position limiting and clamping structure compatible with multiple-size cylindrical batteries according to claim 6, characterized in that: The pitch-adjusting rod (107) comprises a threaded rod section (107.1) and a polished rod section (107.2); the threaded rod section (107.1) passes through the first clamping assembly (101), and the polished rod section (107.2) passes through the second clamping assembly (102); a first pitch-adjusting positioning structure is connected between the threaded rod section (107.1) and the first clamping assembly (101), and a second pitch-adjusting positioning structure is connected between the polished rod section (107.2) and the second clamping assembly (102).

8. The position limiting and clamping structure compatible with multiple-specification cylindrical batteries according to claim 7, characterized in that: The first distance adjustment and positioning structure comprises at least two locking nuts (108) threadedly connected to the threaded rod segment (107.1) and located on the axial front and rear sides of the first clamping assembly (101).

9. The position limiting and clamping structure compatible with multiple-specification cylindrical batteries according to claim 7, characterized in that: The second clamping assembly (102) is detachably fixed to the end of the polished rod segment (107.2) via the second distance adjustment positioning structure.

10. The position limiting and clamping structure compatible with multiple-specification cylindrical batteries according to claim 9, characterized in that: The second distance adjustment positioning structure comprises a second clamping assembly fixing plate (109) detachably fixed to the end of the polished rod section (107.2), and the second clamping assembly (102) is detachably fixed to the second clamping assembly fixing plate (109).

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