A battery charging clamp

Abstract

The utility model discloses a battery charging clamp, including two clamping jaw, first connecting piece and elastic element, wherein, first connecting piece has opposite first end and second end along the first direction, and two clamping jaw are connected respectively in first connecting piece's first end and second end, and with first connecting piece along first direction sliding connection, elastic element is set between first connecting piece's first end and second end, and along the first direction both ends are connected with two clamping jaw respectively, and is used for resetting two clamping jaw. Through adopting the structure that first connecting piece and clamping jaw are connected along the first direction sliding, make the mouth of the clamp always move along the radial of the terminal in the process of opening and closing, improve the motion trail of the mouth of the clamp, and then make the contact area of the clamping jaw and the terminal not change because of the size specification of the terminal, effectively reduce the contact resistance, and the charging effect is good.

Description

Technical Field

[0001] This utility model relates to the field of battery charging, and in particular to a battery charging clamp. Background Technology

[0002] With the widespread use of electronic devices, batteries, as a crucial energy supply device, have seen increasing attention paid to the development of charging equipment. Battery charging clamps, as essential tools for connecting batteries to chargers, directly impact charging efficiency and safety in their design.

[0003] Currently, the most common battery charging clamps on the market are of two types: clamping type and direct insertion type. Clamping type battery charging clamps typically include two gripper assemblies. A drive mechanism moves the grippers to expand the battery placement opening, and a reset mechanism moves the two gripper assemblies to close the opening, thus securing the battery. This structure is simple and allows for fast opening of the battery placement opening, but it may experience contact instability in certain applications. Another common type of battery clamp includes a base, a drive unit, and multiple grippers, at least one of which includes a connected gripping part and a base support. The base support is configured to support the battery to be clamped in the direction of gravity. While this design improves clamping stability, it is relatively complex and has a higher manufacturing cost. For round terminal batteries, there are also specialized charger designs on the market, such as a round terminal battery charger where the grippers open elastically in a "V" shape, with one gripper having a charging head connected to a wire.

[0004] However, existing battery charging clamps still have some technical problems. For plug-in battery charging clamps, there are two main types of issues: one is that while multi-functional battery clamps are suitable for both clamping and insertion connections, their effective contact area is small, making them unsuitable for large batteries; the other is that the plug-in battery clamps have a large opening angle at the front of the clamping jaws due to their arc-shaped movement, resulting in an even smaller effective contact area when inserting larger diameter terminals. These problems lead to poor contact during charging, affecting charging efficiency and safety.

[0005] Currently, there are two main types of direct-plug battery charging clips on the market, such as... Figure 1 and Figure 2 . Figure 1 The battery clip in this case is a multi-functional battery clip that can be used for both clamping and insertion connection methods. This type of battery clip can effectively contact the inner wall of the battery terminal when the battery is inserted. However, the effective contact area available for this clip is relatively small, making it unsuitable for use with large batteries. Figure 2The battery clip in this case is a direct-insertion type. Because the opening and closing of the clip is achieved by a fixed pivot, the movement of the clip is an arc. The opening angle of the front part of the clip is relatively large. Therefore, when inserting a terminal with a larger diameter, the effective contact area of ​​the clip is actually smaller. Utility Model Content

[0006] The technical problem to be solved by this utility model embodiment is to provide a battery charging clamp that can adapt to multiple terminal specifications and has good clamping stability.

[0007] To address the aforementioned technical problems, this utility model provides a battery charging clamp, which includes two grippers, a first connector, and an elastic element. The first connector has a first end and a second end opposite to each other along a first direction. The two grippers are respectively connected to the first end and the second end of the first connector and are slidably connected to the first connector along the first direction. The elastic element is disposed between the first end and the second end of the first connector, and its two ends along the first direction are respectively connected to the two grippers for resetting the two grippers.

[0008] In one feasible implementation, the first connector includes a first part and a second part. The first part is disposed along the first direction, and the second part is disposed along the second direction. The first direction is perpendicular to the second direction, and the end of the second part near the first part along the second direction is fixedly connected to the middle position of the first part. Along the second direction, the position where the gripper is connected to the first end or the second end of the first connector is divided into a clamping part and a holding part. The second part of the first connector is respectively connected to the holding parts of the two grippers.

[0009] In one feasible implementation, the battery charging clamp further includes two second connectors, one end of which is hinged to the gripping portion of one of the grippers, and the other end is slidably connected to the second portion of the first connector.

[0010] In one feasible implementation, the battery charging fixture further includes a bushing, which is sleeved on the second part of the first connector, and the two second connectors are hinged to the bushing.

[0011] In one feasible implementation, the gripper has a first through hole along the first direction, and the first end and the second end of the first connector respectively pass through the first through hole of the two grippers.

[0012] In one feasible implementation, the first end and the second end of the first connector are further provided with a limiting part, the cross-sectional area of ​​the limiting part is larger than the cross-sectional area of ​​the first through hole, and the limiting part is disposed on the side where the two grippers are far apart from each other.

[0013] In one feasible implementation, the elastic element includes two springs, which are respectively sleeved on the first part between the second part of the first connector and the gripper.

[0014] In one feasible implementation, the angle between the gripping portion and the holding portion of the gripper is 110° to 160°.

[0015] In one feasible implementation, the length of the second connector is greater than half the length of the first part of the first connector.

[0016] In one feasible implementation, the gripping portion of the gripper has an arc-shaped cross-section.

[0017] Implementing this utility model has the following beneficial effects:

[0018] The battery charging clamp provided in this application embodiment employs a structure in which the first connector and the gripper are slidably connected along a first direction. This ensures that the gripper jaws always move radially along the terminal during opening and closing, improving the movement trajectory of the gripper jaws. Consequently, the contact area between the gripper jaws and the terminal does not change due to the size and specifications of the terminal, effectively reducing contact resistance. Furthermore, the inclusion of an elastic element allows the inner wall of the gripper jaws to conform to the outer wall of the battery terminal under the spring force, forming a good clamping state, resulting in stable clamping and good charging performance.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application, and do not constitute an undue limitation of this application.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a battery charging clamp shown in some embodiments of this application;

[0022] Figure 2 yes Figure 1 The front view of the battery charging clamp shown;

[0023] Figure 3 yes Figure 1 Front view of the gripper in the battery charging fixture shown.

[0024] The reference numerals in the figure:

[0025] 100-Battery charging clamp,

[0026] 110-Gripper, 111-Gripping part, 112-Holding part, 113-First through hole, 114-Second through hole

[0027] 120 - First connecting part, 121 - First part, 1211 - Limiting part, 122 - Second part

[0028] 130 - Elastic element

[0029] 140 - Second connector,

[0030] 150-shaft sleeve,

[0031] X - First direction, Y - Second direction. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Please refer to Figures 1 to 3 This application provides a battery charging clamp 100 for clamping the terminals of a plug-in battery and charging the battery. The battery charging clamp 100 includes two grippers 110, a first connector 120, and an elastic element 130. The first connector 120 has a first end and a second end opposite to each other along a first direction X. The two grippers 110 are respectively connected to the first end and the second end of the first connector 120 and are slidably connected to the first connector 120 along the first direction X. The elastic element 130 is disposed between the first end and the second end of the first connector 120, and its two ends along the first direction X are respectively connected to the two grippers 110 for resetting the two grippers 110.

[0038] The battery charging clamp 100 provided in this application embodiment employs a structure in which the first connector 120 and the gripper 110 are slidably connected along the first direction X. This allows the gripper to always move radially along the terminal during opening and closing, improving the movement trajectory of the gripper. Consequently, the contact area between the gripper 110 and the terminal does not change due to the size and specifications of the terminal, effectively reducing the contact resistance. Furthermore, the elastic element 130 ensures that the inner wall of the gripper 110 can conform to the outer wall of the battery terminal under the spring force, forming a good clamping state, resulting in stable clamping and good charging performance.

[0039] In one feasible implementation, the first connector 120 includes a first portion 121 and a second portion 122. The first portion 121 is disposed along a first direction X. The second portion 122 is disposed along a second direction Y. Figure 2As shown, the first direction X can be horizontal, and the second direction Y can be vertical. The first direction X is perpendicular to the second direction Y, and the second part 122 is fixedly connected to the middle position of the first part 121 at one end along the second direction Y near the first part 121. Along the second direction Y, the position where the gripper 110 is connected to the first end or the second end of the first connector 120 is divided into a clamping part 111 and a holding part 112. The second part 122 of the first connector 120 is connected to the holding parts 112 of the two grippers 110 respectively. That is, the first connector 120 is T-shaped. This structural design ensures that the gripper 110 is connected through both the first part 121 and the second part 122 of the first connector 120, improving the stability of the connection and thus improving the stability of the gripper 110 during opening and clamping. Furthermore, the first part 121 of the first connector 120 of the battery charging clamp 100 is a straight rod, or a horizontal rod, which is arranged horizontally, and the two ends of the straight rod are the first end and the second end, respectively. The second part 122 of the first connector 120 is a vertical rod, and the lower end of the vertical rod is fixedly connected to the middle position of the straight rod.

[0040] In one feasible implementation, the gripper 110 has a first through hole 113 along the first direction X, and the first end and the second end of the first connector 120 respectively pass through the first through holes 113 of the two grippers 110. The first through holes 113 are formed along the first direction X. The two grippers 110 are a left gripper 110 and a right gripper 110, and the left gripper 110 and the right gripper 110 have the same structure, both including a clamping part 111 and a holding part 112. The left gripper 110 and the right gripper 110 each have a first through hole 113 in the horizontal direction at their central positions, and the first end and the second end of the first connector 120 respectively pass through the first through holes 113 of the left gripper 110 and the right gripper 110, so that the left gripper 110 and the right gripper 110 can slide along the first part 121 of the first connector 120. This structure is simple, stable, and easy to process.

[0041] In one feasible implementation, the first end and the second end of the first connector 120 are further provided with limiting portions 1211. The cross-sectional area of ​​the limiting portion 1211 is larger than the cross-sectional area of ​​the first through hole 113, and the limiting portion 1211 is located on the side where the two grippers 110 are far apart from each other. Further, the limiting portion 1211 is disc-shaped and larger than the diameter of the first through hole 113, thereby preventing the left gripper 110 and the right gripper 110 from falling off from both ends of the first connector 120.

[0042] In one feasible implementation, the battery charging clamp 100 further includes two second connecting members 140. One end of the second connecting member 140 is hinged to the gripping portion 112 of one of the jaws 110, and the other end is slidably connected to the second portion 122 of the first connecting member 120. One end of the left connecting member is hinged to the gripping portion 112 of the left jaw 110, and the other end is slidably connected to the second portion 122 of the first connecting member 120; one end of the right connecting member is hinged to the gripping portion 112 of the right jaw 110, and the other end is slidably connected to the second portion 122 of the first connecting member 120. Thus, when the two jaws 110 move away from or towards each other along the first direction X, the second connecting member 140 and the second portion 122 of the first connecting member 120 also slide together, resulting in greater stability of the movement of the two jaws 110. Simultaneously, the two jaws 110 can also be moved closer or further apart by controlling the sliding between the second connecting member 140 and the second portion 122 of the first connecting member 120. Specifically, the hinged end of the second connector 140 and the gripper 110 can be achieved through the following structure: a second through hole 114 is opened at the corresponding position of the second connector 140 and the gripper 110. The second through hole 114 is opened along a third direction, which is perpendicular to the first direction X and the second direction Y. The hinge shaft passes through the second through hole 114 to hinge the second connector 140 and the gripper 110. This hinge method is quite common and will not be described in detail here.

[0043] In one feasible implementation, the battery charging fixture 100 further includes a bushing 150. The bushing 150 is sleeved on the second part 122 of the first connecting member 120, and the two second connecting members 140 are hinged to the bushing 150. The outer wall of the bushing 150 has two hinge points, respectively hinged to one end of the left connecting member and one end of the right connecting member. This connection structure facilitates processing and assembly, and provides stable operation, making the battery charging fixture 100 easy for users to use.

[0044] In one feasible implementation, the two second connectors 140 can also be slidably connected to the second part 122 of the first connector 120 in another way. For example, the second part 122 has a groove along the second direction Y, and one end of the second connector 140 connected to the second part 122 is slidably connected to the groove.

[0045] In one feasible implementation, the elastic element 130 includes two springs, each spring being sleeved on the first part 121 between the second part 122 of the first connector 120 and the gripper 110. Specifically, one spring is distributed between the first end of the first connector 120 and the second part 122, and the other spring is distributed between the second end of the first connector 120 and the second part 122. The natural length of the springs is 4 cm, and the spring constant is 20 N / m. This design allows the springs to provide appropriate elasticity, ensuring that the gripper 110 can firmly hold the battery without causing operational difficulties due to excessive elasticity. In their natural state, the two springs bring the two grippers 110 closest to each other. Thus, when the two grippers 110 clamp the terminals, the springs are in a stretched state, maintaining a clamping state on the terminals.

[0046] In one feasible implementation, the angle between the clamping portion 111 and the holding portion 112 of the gripper 110 is 110° to 160°. The clamping portion 111 is arranged parallel to the second direction Y, and the holding portion 112 is arc-shaped. The obtuse angle between the tangent of the arc and the straight line containing the clamping portion 111 is the aforementioned angle α between the clamping portion 111 and the holding portion 112 of the gripper 110. α ranges from 110° to 160°. Optionally or preferably, the angle α between the clamping portion 111 and the holding portion 112 is 135°. This angle design makes it more comfortable for the operator to hold the battery charging clamp 100. It also ensures that the clamping portion 111 can effectively clamp the battery. The inner surface of the clamping portion 111 is provided with anti-slip texture to increase the friction when in contact with the battery and prevent the battery from slipping during charging.

[0047] In one feasible implementation, the clamping portion 111 of the gripper 110 has an arc-shaped cross-section. The holding portion 112 also has an arc-shaped cross-section, and the radius of curvature of the arc can be set according to the diameter of the terminal to be charged, so as to fit more terminals of various sizes, increase the contact area when the terminal is being charged, reduce internal resistance, and improve the charging effect.

[0048] In one feasible implementation, through slots are provided on the opposite sides of the two grippers 110. This can ensure the strength of the grippers 110, reduce costs, and facilitate processing.

[0049] In one feasible implementation, the length of the second connector 140 is greater than half the length of the first portion 121 of the first connector 120. In this way, by pushing and pulling the bushing 150, the second connector 140 can push and pull the two grippers 110, allowing the two grippers 110 to slide to both ends of the first portion 121 of the first connector 120, or to separate as far apart as possible, thereby accommodating battery charging with a wider range of terminal sizes.

[0050] When the battery needs to be clamped for charging, the operator pushes the bushing 150 by hand, causing the two second connecting members 140 to push the two grippers 110 away from each other. Then, the two grippers 110 slide relative to the first part 121 of the first connecting member 120 along the first direction X, stretching the spring. When the distance between the clamping parts 111 is greater than the diameter of the battery terminals, the two grippers 110 are placed on both sides of the battery terminals. Then, under the elastic force of the spring, the left and right grippers 110 are pulled closer together, thus clamping the battery. Alternatively, the operator can pull the bushing 150 by hand, causing the two second connecting members 140 to push the two grippers 110 closer together. Then, the two grippers 110 slide relative to the first part 121 of the first connecting member 120 along the first direction X, keeping the spring stretched and clamping the terminals.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A battery charging clamp, characterized by, The battery charging clamp includes two grippers, a first connector, and an elastic element; wherein... The first connector has a first end and a second end opposite to each other along a first direction, and the two grippers are respectively connected to the first end and the second end of the first connector and are slidably connected to the first connector along the first direction. The elastic element is disposed between the first end and the second end of the first connector, and its two ends along the first direction are respectively connected to the two grippers for resetting the two grippers.

2. The battery charging clamp according to claim 1, characterized in that, The first connector includes a first part and a second part. The first part is disposed along the first direction, and the second part is disposed along the second direction. The first direction is perpendicular to the second direction, and the end of the second part near the first part along the second direction is fixedly connected to the middle position of the first part. Along the second direction, the position where the gripper connects to the first end or the second end of the first connector is divided into a clamping part and a holding part, and the second part of the first connector is connected to the holding parts of the two grippers respectively.

3. The battery charging clamp of claim 2, wherein, The battery charging clamp also includes two second connectors, one end of which is hinged to the gripping part of one of the jaws, and the other end is slidably connected to the second part of the first connector.

4. The battery charging clamp according to claim 3, characterized in that, The battery charging fixture also includes a bushing, which is sleeved on the second part of the first connector, and the two second connectors are hinged to the bushing.

5. The battery charging clamp of claim 2, wherein, The gripper has a first through hole along the first direction, and the first end and the second end of the first connector pass through the first through hole of the two grippers respectively.

6. The battery charging clamp of claim 5, wherein, The first end and the second end of the first connector are also provided with limiting parts. The cross-sectional area of ​​the limiting parts is larger than the cross-sectional area of ​​the first through hole, and the limiting parts are located on the side where the two grippers are far apart from each other.

7. The battery charging clamp of claim 5, wherein, The elastic element includes two springs, which are respectively sleeved on the first part between the second part of the first connector and the gripper.

8. The battery charging clamp of claim 2, wherein, The angle between the gripping part and the holding part of the gripper is 110° to 160°.

9. The battery charging clamp of claim 3, wherein, The length of the second connector is greater than half the length of the first part of the first connector.

10. The battery charging clamp of claim 1, wherein, The gripping portion of the gripper has an arc-shaped cross-section.

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