Expansion force battery clamp capable of simultaneously adjusting pressure at multiple points

Abstract

The utility model relates to the technical field of battery expansive force testing, and provides an expansive force battery clamp capable of simultaneously adjusting pressure at multiple points, which comprises a first clamping piece, a second clamping piece, a pressure adjusting device, a plurality of clamping bolts and a plurality of clamping nuts, the first clamping piece and the second clamping piece are arranged at an interval, and a clamping space for clamping a battery is formed between the first clamping piece and the second clamping piece; the multiple clamping bolts are arranged at the set positions of the first clamping piece and the second clamping piece in a penetrating mode correspondingly, and the clamping bolts are in threaded connection with the clamping nuts. The pressure adjusting device comprises a plurality of adjusting arms, torsion adjusting assemblies are arranged at the ends of the adjusting arms, the torsion adjusting assemblies are connected with the clamping nuts in a one-to-one correspondence mode, and the torsion of the clamping nuts is adjusted through the torsion adjusting assemblies. According to the utility model, the defect that the accuracy of test data is influenced by non-uniform stress on the surface of the battery because the conventional battery expansive force clamp is difficult to keep the battery and the clamp in a horizontal state is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of battery expansion force testing, in particular to an expansion force battery clamp capable of adjusting pressure at multiple points simultaneously. Background Art

[0002] Batteries experience periodic expansion during charge and discharge cycles. Applying reasonable and uniform pressure to the battery casing ensures more accurate expansion force data. Existing battery expansion force fixtures struggle to maintain a level position between the battery and the fixture, resulting in uneven force applied to the battery surface, affecting the accuracy of test data. Furthermore, the installation process is cumbersome, labor-intensive, and time-consuming. Utility Model Content

[0003] The utility model provides an expansion force battery clamp capable of adjusting pressure at multiple points simultaneously, so as to solve the defect that the existing battery expansion force clamp is difficult to keep the battery and the clamp in a horizontal state, thereby causing uneven force on the battery surface and affecting the accuracy of test data.

[0004] The utility model provides an expansion force battery clamp capable of adjusting pressure at multiple points simultaneously, comprising: a first clamping member, a second clamping member, a pressure regulating device, a plurality of clamping bolts and a plurality of clamping nuts; the first clamping member and the second clamping member are arranged at intervals, and a clamping space for clamping the battery is formed between the first clamping member and the second clamping member; the plurality of clamping bolts are respectively passed through the set positions of the first clamping member and the second clamping member, and the clamping bolts and the clamping nuts are threadedly connected; the pressure regulating device comprises a plurality of regulating arms, and the ends of the regulating arms are provided with torque regulating assemblies, and the torque regulating assemblies are connected to the clamping nuts in a one-to-one correspondence so as to adjust the torque of the clamping nuts through the torque regulating assemblies.

[0005] According to the expansion force battery clamp provided by the utility model, which can adjust the pressure at multiple points simultaneously, it also includes a third clamping member, which is spaced apart from the second clamping member, and a pressure sensor is provided between the second clamping member and the third clamping member; multiple clamping bolts are respectively inserted into the set positions of the first clamping member, the second clamping member and the third clamping member, and the clamping bolts are threadedly connected to the clamping nuts.

[0006] The expansion force battery clamp capable of adjusting pressure at multiple points simultaneously provided by the utility model further includes a controller and a host computer. The pressure regulating device and the pressure sensor are both communicatively connected to the controller, and the controller is communicatively connected to the host computer.

[0007] According to the expansion force battery clamp capable of adjusting pressure at multiple points simultaneously provided by the utility model, the controller is a PLC.

[0008] According to the expansion force battery clamp capable of adjusting pressure at multiple points simultaneously provided by the present invention, a plurality of pressure sensors are provided between the second clamping member and the third clamping member, and the plurality of pressure sensors are evenly distributed between the second clamping member and the third clamping member.

[0009] According to the expansion force battery clamp with multi-point pressure adjustment provided by the utility model, the first clamping member, the second clamping member and the third clamping member are all rectangular clamping plates, and the plurality of clamping bolts are respectively passed through the four corners of the first clamping member, the second clamping member and the third clamping member.

[0010] According to the expansion force battery clamp capable of adjusting pressure at multiple points simultaneously provided by the utility model, the torque adjustment assembly includes a torque adjustment sleeve and a rotary drive member, the rotary drive member is connected to the adjustment arm, and the torque adjustment sleeve is connected to the output end of the rotary drive member.

[0011] According to the expansion force battery clamp capable of adjusting pressure at multiple points simultaneously provided by the utility model, the pressure adjustment device further includes a connecting seat, and the plurality of adjustment arms are hinged to the connecting seat.

[0012] According to the expansion force battery clamp capable of adjusting pressure at multiple points simultaneously provided by the utility model, the plurality of adjustment arms are universally connected to the connecting seat.

[0013] According to the expansion force battery clamp capable of adjusting pressure at multiple points simultaneously provided by the utility model, the connecting seat is provided with a plurality of universal joints corresponding one-to-one to the adjusting arms, and one end of the adjusting arm is connected to the connecting seat through the universal joint.

[0014] This utility model provides an expansion force battery clamp with multi-point simultaneous pressure adjustment. By providing a pressure adjustment device, when clamping a battery between a first clamping member and a second clamping member, the torque of each clamping nut can be independently adjusted using torque adjustment assemblies located at the ends of each adjustment arm of the pressure adjustment device. This ensures a uniform torque applied to the set positions of the first and second clamping members, ensuring uniform force on the battery surface and improving the accuracy of test data. This multi-point simultaneous pressure adjustment battery clamp solves the problem of existing battery expansion force clamps that have difficulty maintaining a level position between the battery and the clamp, resulting in uneven force on the battery surface and affecting the accuracy of test data.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of an expansion force battery clamp capable of adjusting pressure at multiple points simultaneously provided by an embodiment of the utility model.

[0018] Figure 2 It is a structural schematic diagram of a pressure regulating device in an expansion force battery clamp capable of regulating pressure at multiple points simultaneously provided by an embodiment of the present utility model.

[0019] Figure 3 This is a screen display diagram of a host computer in an expansion force battery clamp capable of adjusting pressure at multiple points simultaneously provided by an embodiment of the utility model.

[0020] Reference numerals:

[0021] 1. First clamping member; 2. Second clamping member; 3. Pressure regulating device; 310. Adjusting arm; 320. Torque regulating assembly; 321. Torque regulating sleeve; 322. Rotating driving member; 330. Connecting seat; 4. Clamping bolt; 5. Clamping nut; 6. Third clamping member; 7. Pressure sensor; 8. Controller; 9. Host computer. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0025] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0027] See also Figure 1 and Figure 2 As shown, the expansion force battery clamp with multi-point pressure adjustment provided by the embodiment of the present invention includes: a first clamping member 1, a second clamping member 2, a pressure adjustment device 3, a plurality of clamping bolts 4 and a plurality of clamping nuts 5.

[0028] Among them, the first clamping member 1 and the second clamping member 2 are arranged at intervals, and a clamping space for clamping the battery is formed between the first clamping member 1 and the second clamping member 2; a plurality of clamping bolts 4 are respectively passed through the set positions of the first clamping member 1 and the second clamping member 2, and the clamping bolts 4 are threadedly connected to the clamping nuts 5; the pressure regulating device 3 includes a plurality of regulating arms 310, and the ends of the regulating arms 310 are provided with torque regulating assemblies 320, and the torque regulating assemblies 320 are connected one-to-one with the clamping nuts 5 to adjust the torque of the clamping nuts 5 through the torque regulating assemblies 320.

[0029] The present invention provides an expansion force battery clamp with multi-point simultaneous pressure adjustment. By providing a pressure adjustment device 3, when clamping a battery between a first clamping member 1 and a second clamping member 2, the torque of each clamping nut 5 can be independently adjusted using torque adjustment assemblies 320 disposed at the ends of each adjustment arm 310 in the pressure adjustment device 3. This ensures a uniform torque applied to the set positions of the first clamping member 1 and the second clamping member 2, ensuring uniform force on the battery surface and improving the accuracy of test data. The present invention provides an expansion force battery clamp with multi-point simultaneous pressure adjustment, resolving the issue of existing battery expansion force clamps that struggle to maintain a level position between the battery and the clamp, resulting in uneven force on the battery surface and impacting the accuracy of test data.

[0030] It should be noted that the phrase "plural clamping bolts 4 are respectively disposed at designated positions on the first clamping member 1 and the second clamping member 2" can be understood to mean that the clamping bolts 4 are disposed at corresponding positions on the first clamping member 1 and the second clamping member 2. For example, when the first clamping member 1 and the second clamping member 2 are both rectangular clamping plates, the designated positions are the four corners of the rectangular clamping plates, thereby applying a uniform clamping force to different portions of the rectangular clamping plates.

[0031] See also Figure 1 As shown, according to some embodiments of the present invention, the expansion force battery clamp capable of simultaneously adjusting pressure at multiple points further includes a third clamping member 6, spaced apart from the second clamping member 2, with a pressure sensor 7 disposed between the second and third clamping members 2 and 6. Multiple clamping bolts 4 are respectively disposed at designated positions within the first, second, and third clamping members 6, with the clamping bolts 4 being threadedly connected to the clamping nuts 5. By adding the third clamping member 6 and disposing the pressure sensor 7 between the second and third clamping members 2 and 6, the pressure sensor 7 can detect the pressure applied by the clamping bolts 4 and the clamping nuts 5 to the first, second, and third clamping members 2, 6, thereby determining whether the battery is evenly compressed.

[0032] See also Figure 1As shown, according to some embodiments of the present invention, the expansion force battery clamp capable of simultaneously adjusting pressure at multiple points further includes a controller 8 and a host computer 9. The pressure regulating device 3 and the pressure sensor 7 are both in communication with the controller 8, which is in communication with the host computer 9. By providing the controller 8 and the host computer 9, it is possible to obtain pressure information from the pressure sensor 7, and thus obtain the clamping force applied by the corresponding clamping bolt 4 and clamping nut 5 to different positions of the battery. The torque applied by the torque adjustment assembly 320 to the clamping nut 5 is adjusted based on the clamping force applied by the corresponding clamping bolt 4 and clamping nut 5 to different positions of the battery, so that different positions of the battery are evenly compressed.

[0033] See also Figure 3 As shown, specifically, the host computer 9 is provided with a display panel, which can display the pressure borne by different points of the battery (corresponding to the setting positions of each clamping bolt 4 and the clamping nut 5). The user can clearly obtain the pressure information of each part of the battery, and output control instructions through the host computer 9 accordingly to control the torque applied by the corresponding torque adjustment component 320 to the clamping nut 5.

[0034] According to some embodiments of the present invention, the controller 8 is a PLC (Programmable Logic Controller). The PLC can quickly respond to changes in input signals and perform precise control actions, and is suitable for applications requiring high-precision and high-speed operations.

[0035] According to some embodiments of the present invention, multiple pressure sensors 7 are provided between the second clamping member 2 and the third clamping member 6. The multiple pressure sensors 7 are evenly distributed between the second clamping member 2 and the third clamping member 6. By evenly distributing the multiple pressure sensors 7 between the second clamping member 2 and the third clamping member 6, more comprehensive and accurate pressure data can be provided to monitor the pressure distribution between the second clamping member 2 and the third clamping member 6 in real time, thereby reflecting the pressure conditions of different parts of the battery.

[0036] According to some embodiments of the present invention, the first clamping member 1, the second clamping member 2, and the third clamping member 6 are all rectangular clamping plates, and a plurality of clamping bolts 4 are respectively disposed through the four corners of the first clamping member 1, the second clamping member 2, and the third clamping member 6. By configuring the first clamping member 1, the second clamping member 2, and the third clamping member 6 as rectangular clamping plates and respectively disposing the plurality of clamping bolts 4 through the four corners of the first clamping member 1, the second clamping member 2, and the third clamping member 6, the structure is simplified, and a relatively uniform clamping force can be applied to the battery through the clamping bolts 4 and clamping nuts 5 at the four corners.

[0037] See also Figure 2As shown, according to some embodiments of the present invention, the torque adjustment assembly 320 includes a torque adjustment sleeve 321 (having a slot formed therein that matches the clamping nut 5) and a rotary drive member 322 (such as a torque motor). The rotary drive member 322 is connected to the adjustment arm 310, and the torque adjustment sleeve 321 is connected to the output end of the rotary drive member 322. The torque adjustment sleeve 321 is sleeved onto the corresponding clamping nut 5. The output end of the rotary drive member 322 can drive the torque adjustment sleeve 321 to rotate. By controlling the rotation direction and rotation angle of the output end of the rotary drive member 322, the torque applied by the clamping nut 5 can be controlled, thereby adjusting the clamping force applied to the corresponding position of the battery. The structure is simple and the control accuracy is high.

[0038] See also Figure 2 As shown, according to some embodiments of the present invention, the pressure regulating device 3 further includes a connecting base 330, to which multiple regulating arms 310 are hingedly connected. By providing the connecting base 330 and hingedly connecting the multiple regulating arms 310 to the connecting base 330, each regulating arm 310 can be adjusted according to the arrangement of the clamping nut 5 at different points, allowing the pressure regulating device 3 to adapt to the torque adjustment of the clamping nut 5 at different points. For example, each regulating arm 310 can rotate in a plane parallel to the connecting base 330 to adjust the position of the torque adjustment assembly 320.

[0039] According to some embodiments of the present invention, the plurality of adjustment arms 310 are universally connected to the connection base 330. By configuring the plurality of adjustment arms 310 and the connection base 330 as universal connections, the position of the torque adjustment assembly 320 can be adjusted in three degrees of freedom (X, Y, and Z) (in a spatial rectangular coordinate system), further expanding the applicability of the device.

[0040] Specifically, the connection base 330 is provided with a plurality of universal joints (not shown in the figure) corresponding one to one with the adjustment arms 310 , and one end of the adjustment arm 310 is connected to the connection base 330 via the universal joint.

[0041] From the description of the above embodiments, it can be seen that the expansion force battery clamp with multi-point pressure adjustment provided by the present invention has at least the following advantages.

[0042] (1) The expansion force battery clamp with pressure adjustment at multiple points provided by the present invention solves the problem that the existing battery expansion force clamp has difficulty in keeping the battery and the clamp in a horizontal state, thereby causing uneven force on the battery surface and affecting the accuracy of the test data.

[0043] (2) The expansion force battery clamp provided by the present invention, which can adjust the pressure at multiple points simultaneously, can obtain the pressure information of the pressure sensor 7 by setting the third clamping member 6, the controller 8 and the host computer 9, and then obtain the clamping force applied by the corresponding clamping bolt 4 and the clamping nut 5 to different positions of the battery. The torque applied by the torque adjustment component 320 to the clamping nut 5 is adjusted according to the clamping force applied by the corresponding clamping bolt 4 and the clamping nut 5 to different positions of the battery, so that the pressure at different positions of the battery is uniform, thereby realizing feedback adjustment. The display panel of the host computer 9 can display the pressure at different points of the battery (corresponding to the setting positions of each clamping bolt 4 and the clamping nut 5). The user can clearly obtain the pressure information of each part of the battery, and output control instructions through the host computer 9 accordingly to control the torque applied by the corresponding torque adjustment component 320 to the clamping nut 5.

[0044] (3) The expansion force battery clamp provided by the present invention can adjust the pressure at multiple points simultaneously. The pressure regulating device 3 is provided with a rotary drive device and a torque regulating sleeve 321 to form an adjusting arm 310. The structure is simple and the cost is low.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An expansion force battery clamp capable of adjusting pressure at multiple points simultaneously, characterized in that: include: a first clamping member, a second clamping member, a pressure regulating device, a plurality of clamping bolts, and a plurality of clamping nuts; The first clamping member and the second clamping member are spaced apart from each other, and a clamping space for clamping the battery is formed between the first clamping member and the second clamping member; The plurality of clamping bolts are respectively provided at set positions of the first clamping member and the second clamping member, and the clamping bolts are threadedly connected to the clamping nuts; The pressure regulating device includes a plurality of regulating arms, and the ends of the regulating arms are provided with torque regulating assemblies, and the torque regulating assemblies are connected to the clamping nuts in a one-to-one correspondence so as to adjust the torque of the clamping nuts through the torque regulating assemblies.

2. The expansion force battery clamp capable of adjusting pressure at multiple points simultaneously according to claim 1, characterized in that: The apparatus further comprises a third clamping member, wherein the third clamping member is spaced apart from the second clamping member, and a pressure sensor is provided between the second clamping member and the third clamping member; The plurality of clamping bolts are respectively passed through the set positions of the first clamping member, the second clamping member and the third clamping member, and the clamping bolts are threadedly connected to the clamping nuts.

3. The expansion force battery clamp capable of adjusting pressure at multiple points simultaneously according to claim 2, characterized in that: It also includes a controller and a host computer. The pressure regulating device and the pressure sensor are both connected to the controller for communication, and the controller is connected to the host computer for communication.

4. The expansion force battery clamp capable of adjusting pressure at multiple points simultaneously according to claim 3, characterized in that: The controller is a PLC.

5. The expansion force battery clamp capable of adjusting pressure at multiple points simultaneously according to claim 2, characterized in that: A plurality of pressure sensors are provided between the second clamping member and the third clamping member, and the plurality of pressure sensors are evenly distributed between the second clamping member and the third clamping member.

6. The expansion force battery clamp capable of adjusting pressure at multiple points simultaneously according to claim 2, characterized in that: The first clamping member, the second clamping member and the third clamping member are all rectangular clamping plates, and the plurality of clamping bolts are respectively passed through the four corners of the first clamping member, the second clamping member and the third clamping member.

7. The expansion force battery clamp capable of adjusting pressure at multiple points simultaneously according to any one of claims 1 to 6, characterized in that: The torque adjustment assembly includes a torque adjustment sleeve and a rotary drive member, the rotary drive member is connected to the adjustment arm, and the torque adjustment sleeve is connected to the output end of the rotary drive member.

8. The expansion force battery clamp capable of adjusting pressure at multiple points simultaneously according to any one of claims 1 to 6, characterized in that: The pressure regulating device further comprises a connecting seat, and the plurality of regulating arms are hinged to the connecting seat.

9. The expansion force battery clamp capable of adjusting pressure at multiple points simultaneously according to claim 8, characterized in that: The plurality of adjusting arms are all universally connected to the connecting seat.

10. The expansion force battery clamp capable of adjusting pressure at multiple points simultaneously according to claim 9, characterized in that: The connecting seat is provided with a plurality of universal joints corresponding to the adjusting arms one by one, and one end of the adjusting arm is connected to the connecting seat through the universal joint.

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