Clamp device suitable for cylindrical battery

Abstract

The utility model discloses a clamp device suitable for a cylindrical battery. The clamp device comprises a shell and an inner clamp, the outer shell is provided with a hollow inner cavity, and the inner clamp is arranged in the inner cavity of the outer shell and fixedly connected with the outer shell. The inner clamp comprises a plurality of clamping pieces, the inner wall of each clamping piece is in an arc shape matched with the appearance of a cylindrical battery, and a buffer layer is arranged on the inner wall of each clamping piece; and the plurality of clamping pieces are connected with one another through the hinges and can surround the cylindrical battery in the middle. According to the utility model, not only are the adaptability and reliability of the clamp enhanced, but also the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing and assembly equipment, in particular to a clamp device suitable for cylindrical batteries, which can safely clamp cylindrical batteries of various sizes during testing, charging or assembly operations. Background Art

[0002] Existing devices for fixing cylindrical batteries often face limited adaptability. These existing devices are usually unable to effectively adapt to various sizes and models of batteries, which may result in uneven pressure distribution during battery testing, charging or assembly, or fail to provide a secure clamp, thereby increasing the risk of battery displacement or damage during operation. In addition, these devices often lack sufficient flexibility to meet changing testing needs, especially when different types of batteries need to be handled. Therefore, there is an urgent need for a new battery clamp design that can not only adapt to batteries of different sizes, but also evenly apply appropriate pressure to ensure that the battery is stable and safe throughout the operation, and will not be damaged by excessive clamping. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a clamp device suitable for cylindrical batteries.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is a clamp device suitable for cylindrical batteries, comprising an outer shell and an inner clamp;

[0005] The shell has a hollow inner cavity, and the inner clip is placed in the inner cavity of the shell and fixedly connected to the shell;

[0006] The inner clip includes a plurality of clips, the inner wall of the clip is an arc shape adapted to the shape of the cylindrical battery, and a buffer layer is arranged on the inner wall of the clip; the plurality of clips are connected to each other by hinges to surround the cylindrical battery in the middle.

[0007] Preferably, the outer shell is a frame-shaped structure with a square cross-section and the hollow inner cavity is connected vertically;

[0008] The two outer shells are connected to each other through screws arranged on the side walls, and the inner clamp is placed in the inner cavities of the two outer shells;

[0009] The outer shell is provided with positioning screw holes along the side wall, and the screw ends of the screwed positioning bolts are pressed against the countersunk holes arranged on the back side of the inner clamping piece.

[0010] Preferably, the outer shell is a frame-shaped structure with a circular cross-section and the hollow inner cavity is connected vertically;

[0011] The two outer shells are connected to each other through screws arranged on the side walls, and the inner clamp is placed in the inner cavities of the two outer shells;

[0012] The outer shell is provided with positioning screw holes along the side wall, and the screw ends of the screwed positioning bolts are pressed against the countersunk holes arranged on the back side of the inner clamping piece.

[0013] Preferably, the buffer layer is a soft silicone sleeve with certain stretchability, and the soft silicone sleeve is adapted to the outer side of the cylindrical battery and can wrap the cylindrical battery therein.

[0014] Preferably, the buffer layer is made of a soft and elastic material.

[0015] Preferably, the outer shell is made of metal, and the inner clip is also made of metal.

[0016] Preferably, the outer shell is made of plastic, and the inner clip is also made of plastic.

[0017] Preferably, the outer shell is made of metal, and the inner clip is made of plastic.

[0018] Preferably, the outer shell is made of plastic, and the inner clip is made of metal.

[0019] Preferably, the outer shell is made of carbon fiber, and the inner clip is made of metal or plastic or carbon fiber.

[0020] The beneficial effects of the utility model are:

[0021] It not only enhances the adaptability and reliability of the fixture, but also improves its ease of use, thereby optimizing operational efficiency during battery testing, charging and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 It is a three-dimensional structural diagram of Example 1 of the clamp device suitable for cylindrical batteries of the utility model.

[0024] Figure 2 It is a front view of Example 1 of the clamp device suitable for cylindrical batteries of the utility model.

[0025] Figure 3 yes Figure 2 AA section view.

[0026] Figure 4 yes Figure 3 Partial view of location B.

[0027] Figure 5 It is a top view of Example 1 of the clamp device suitable for cylindrical batteries of the utility model.

[0028] Reference numerals:

[0029] 1-upper shell, 2-inner clip, 3-positioning bolt, 4-lower shell, 5-nut, 6-screw, 7-cylindrical battery, 8-soft silicone sleeve, 9-hinge. DETAILED DESCRIPTION

[0030] Example 1

[0031] This embodiment is a clamp device with a quadrangular prism shape suitable for cylindrical batteries.

[0032] Figure 1 The clamp device is suitable for cylindrical batteries and consists of an upper shell 1, an inner clamp 2, a positioning bolt 3, a lower shell 4, a nut 5, a screw 6 and a soft silicone sleeve 8.

[0033] The upper shell and the lower shell in this embodiment have the same structure. For the convenience of description, they are respectively referred to as the upper shell and the lower shell according to their positions after installation.

[0034] exist Figure 2 In the invention, both the upper shell and the lower shell are quadrangular prisms with square cross-sections of the same size, and the inner cavities of the upper shell and the lower shell are square cavities that penetrate from top to bottom.

[0035] There are four screw holes at the four corners of the side walls of the upper and lower shells, and each screw hole penetrates the side walls of the upper and lower shells from top to bottom. During installation, one end of the four screws is inserted from the screw hole of the lower shell to the screw hole of the upper shell, and the screws are screwed into the screw holes. A nut 4 is provided on each screw to adjust and lock the distance between the upper and lower shells.

[0036] The distance between the upper and lower outer shells should be adjusted according to the height of the cylindrical battery 7 to ensure that the head and tail of the cylindrical battery are effectively covered and protected.

[0037] In this embodiment, the upper shell and the lower shell adopt the same structure and are connected by screws, which has the advantages of being easy to manufacture and saving materials.

[0038] During installation, the other ends of the four screw rods can be left with a longer section and extended downward from the bottom surface of the lower housing to serve as the installation base of the entire device. In this way, the entire device can be stably installed on a workbench or other flat surface, thereby correspondingly expanding the purpose and use occasions of the device.

[0039] The inner clip in this embodiment is composed of 4 clips. Each clip is a tile-shaped block, wherein the inner wall of each clip is set to be an arc shape that matches the outer shape of the cylindrical battery, and the size of the arc shape is different to adapt to cylindrical batteries of different diameters, and the back of each clip is set to be a plane that matches the inner cavity of the shell.

[0040] All the clips are connected to each other in pairs through hinges 9, and the sides of the two clips at the opening are connected by latches or bayonet joints to form an integrated inner clip. The entire inner clip can stably surround and clamp a cylindrical battery in the middle of all the clips.

[0041] In addition, a soft silicone sleeve is wrapped around the outside of the cylindrical battery as a buffer layer between the inner clamp and the outer periphery of the cylindrical battery. The soft silicone sleeve has a certain elasticity and its size is just right to tightly wrap the cylindrical battery. The soft silicone sleeve can provide additional protection for the cylindrical battery and prevent the cylindrical battery from being directly damaged by mechanical pressure during the clamping process.

[0042] Alternatively, a soft and elastic material may be attached to the inner wall of each clip of the inner clip to serve as a buffer layer, such as felt or silicone sheet, which is more convenient during operation.

[0043] In terms of design, the circumferential length of the clamping effect after all the clips are enclosed can be slightly larger than the circumferential length corresponding to the diameter of the cylindrical battery and slightly smaller than the circumferential length corresponding to the diameter of the soft silicone sleeve wrapped therein, so that after all the clips are enclosed, the force generated will only act on the soft silicone sleeve, and then act on the outside of the cylindrical battery through the rubber sleeve, but will not directly act on the cylindrical battery. Therefore, this embodiment adopts a structure in which four clips are connected as one by hinges, so that the inner clip can clamp the cylindrical battery moderately, firmly and stably, and the entire inner clip is not easy to deform.

[0044] Undoubtedly, the overall size of the enclosed shape of the inner clip should be smaller than the inner cavity size of the upper outer shell and the lower outer shell, so that the inner clip can be easily placed in the inner cavity of the upper outer shell and the lower outer shell.

[0045] exist Figure 3 In the embodiment, the four side walls of the upper and lower shells are provided with positioning screw holes that pass through from the outside to the inside, and a countersunk hole for positioning is provided on the back of each clip of the inner clip at a position corresponding to the positioning screw hole on the shell. During installation, the positioning bolts are screwed into the positioning screw holes from the outside of the upper and lower shells, so that the threaded end of the positioning bolts extends into the inner cavity of the shell, and the threaded end face of the positioning bolts extends into the countersunk hole on the back of the clip and supports the clip ( Figure 4 ).

[0046] exist Figure 5 It can be seen that the four positioning bolts are screwed into the positioning screw holes on the four side walls of the outer shell respectively, and the threaded ends of the four positioning bolts extend into the inner cavities of the upper outer shell and the lower outer shell to support the inner clamp from the four directions of front, back, left and right respectively, so that the inner clamp maintains a certain distance from the inner walls of the upper outer shell and the lower outer shell. By adjusting the positioning bolts, the entire inner clamp is in a centered position in the inner cavity of the upper outer shell and the lower outer shell.

[0047] At least one positioning screw hole shall be set on each side of the upper shell and the lower shell. Of course, more than one positioning screw hole can be set on each surface, such as left and right or up and down. However, multiple positioning screw holes should be symmetrical left and right or up and down to ensure uniform force on the inner clamp.

[0048] If the inner clip is composed of more than 4 clips, such as the upper shell and the lower shell are both in the shape of a quadrangular prism, but the inner clip is composed of 8 clips, positioning countersunk holes can be set on the back of the clips that are separated by one, so that only 4 countersunk holes are needed to correspond to the positioning screw holes on the side walls of the upper shell and the lower shell in 4 directions. For cylindrical batteries with larger diameters, if more clips (such as 8 pieces) are used to form the inner clip, the volume of the entire inner clip can be smaller and the weight can be lighter. The principle of setting the positioning screw holes should comply with the principle of central symmetry, so that the screwed-in positioning bolts can support the inner clip from opposite directions.

[0049] The outer shell and the inner clip are generally made of the same material, mostly made of metal materials, generally iron, aluminum or copper, and some are made of plastic, such as engineering plastics. Considering different uses or occasions, the outer shell and the inner clip can also be made of different materials, such as aluminum for the outer shell and engineering plastic for the inner clip. For special requirements, the outer shell can also be made of carbon fiber, while the inner clip is made of metal or plastic.

[0050] Installation and usage:

[0051] (1) Select a suitable soft silicone sleeve according to the diameter and height of the cylindrical battery, and put the soft silicone sleeve on the outside of the cylindrical battery.

[0052] (2) Insert four screws through the screw holes on the side wall of the lower shell to the screw holes on the side wall of the upper shell respectively, and rotate the locking nuts to adjust and lock the distance between the upper shell and the lower shell according to the height of the entire cylindrical battery.

[0053] (3) Open the clips on both sides of the opening of the inner clip, use the inner clip to enclose the cylindrical battery wrapped in the soft silicone sleeve, and then connect the clips on both sides of the opening with a latch or a bayonet, thereby clamping the cylindrical battery.

[0054] (4) Place the inner clamp into the inner cavity of the upper and lower outer shells, screw the positioning bolts into the positioning screw holes on the side walls of the upper and lower outer shells, and make the threaded ends of the positioning bolts press against the countersunk holes on the back of the inner clamp.

[0055] (5) Adjust the positioning bolts to support the inner clamp from the four sides of the upper shell and the lower shell respectively, so that the inner clamp maintains a basically consistent spacing with the side walls of the inner cavity of the upper shell and the lower shell, and the four positioning bolts around the upper shell and the four positioning bolts around the lower shell together firmly support the inner clamp in the middle of the upper shell and the lower shell.

[0056] (6) After the battery test, charging or assembly process is completed, loosen the positioning bolts and remove the inner clamp.

[0057] (7) Finally, open the inner clip and take out the cylindrical battery.

[0058] Example 2

[0059] This embodiment is a clamp device that is cylindrical in shape and is also suitable for cylindrical batteries.

[0060] In this embodiment, two housings with the same structure are also used as the upper housing and the lower housing respectively.

[0061] The cross sections of the upper shell and the lower shell are circular cross sections with the same diameter, and the shape of the entire shell is a cylinder.

[0062] At least two screw holes are evenly distributed on the side walls of the upper shell and the lower shell. A long screw rod passes through each screw hole to connect the upper shell and the lower shell. Finally, the upper shell and the lower shell are connected as a whole by the screw rod.

[0063] The inner cavities of the upper and lower outer shells are set as circular cavities that pass through from top to bottom. At the same time, the back side of each clip of the inner clip is also set as an arc shape. After all the clips are connected by hinges, the entire inner clip is in a cylindrical shape to match the circular cavities of the upper and lower outer shells.

[0064] The inner clip is composed of at least two semicircular clips, which are linked to each other to form a circular openable structure, just enclosing a cylindrical battery in the middle.

[0065] For the upper and lower shells of cylindrical shape, in principle, positioning screw holes are symmetrically arranged on the circumference of the upper and lower shells so that the inner clamp is evenly stressed. Generally speaking, the position and number of the positioning screw holes are preferably the same as the number of the inner clamp clips. For example, the inner clamp with two clips can have two positioning screw holes symmetrically arranged on the upper and lower shells, and the inner clamp with three clips can have three positioning screw holes symmetrically arranged on the upper and lower shells. At the same time, a countersunk hole corresponding to the positioning screw hole is arranged on the back of each clip, and the upper and lower shells are connected to the inner clamp by positioning bolts.

[0066] The other structures in this embodiment are the same as those in Embodiment 1.

[0067] The above-described implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. A clamping device suitable for cylindrical batteries, characterized in that: Including outer shell and inner clip; The shell has a hollow inner cavity, and the inner clip is placed in the inner cavity of the shell and fixedly connected to the shell; The inner clip comprises a plurality of clips, the inner wall of the clip is an arc shape adapted to the shape of the cylindrical battery, and a buffer layer is arranged on the inner wall of the clip; the plurality of clips are connected to each other by hinges to surround the cylindrical battery in the middle.

2. The clamp device for cylindrical batteries according to claim 1, characterized in that , the shell is a frame-shaped structure with a square cross-section and the hollow inner cavity is connected from top to bottom; The two outer shells are connected to each other via screws arranged on the side walls, and the inner clamp is placed in the inner cavities of the two outer shells; The shell is provided with positioning screw holes along the side wall, and the screw ends of the screwed positioning bolts are pressed against the countersunk holes arranged on the back side of the inner clamping piece.

3. The clamp device for cylindrical batteries according to claim 1, characterized in that , the shell is a frame-shaped structure with a circular cross-section and the hollow inner cavity is connected vertically; The two outer shells are connected to each other via screws arranged on the side walls, and the inner clamp is placed in the inner cavities of the two outer shells; The shell is provided with positioning screw holes along the side wall, and the screw ends of the screwed positioning bolts are pressed against the countersunk holes arranged on the back side of the inner clamping piece.

4. The clamping device for cylindrical batteries according to claim 1, characterized in that The buffer layer is a soft silicone sleeve with certain stretchability, and the soft silicone sleeve is adapted to the outer side of the cylindrical battery and can wrap the cylindrical battery therein.

5. The clamping device for cylindrical batteries according to claim 1, characterized in that ,The buffer layer is made of soft and elastic material.

6. The clamping device for cylindrical batteries according to claim 1, characterized in that The outer shell is made of metal, and the inner clip is also made of metal.

7. The clamping device for cylindrical batteries according to claim 1, characterized in that The outer shell is made of plastic, and the inner clip is also made of plastic.

8. The clamping device for cylindrical batteries according to claim 1, characterized in that ,The outer shell is made of metal, and the inner clip is made of plastic.

9. The clamp device for cylindrical batteries according to claim 1, characterized in that ,The outer shell is made of plastic, and the inner clip is made of metal.

10. The clamping device for cylindrical batteries according to claim 1, characterized in that ,The shell is made of carbon fiber, and the inner clip is made of metal or plastic or carbon fiber.

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