Battery cell pin double-bending structure and battery cell assembly

Abstract

The utility model discloses a double-bending structure of a battery cell pin. The double-bending structure comprises a pin main body, wherein the pin main body is provided with a first end part and a second end part; the first bending part is arranged between the first end part and the pin main body, the first bending part is provided with a first guide groove, a first limiting bulge and a first bending groove, and the first limiting bulge is respectively connected with the first guide groove and the first bending groove; and the second bending part is arranged between the second end part and the pin main body, the second bending part is provided with a second guide groove, a second limiting bulge and a second bending groove, and the second limiting bulge is respectively connected with the second guide groove and the second bending groove. According to the technical scheme of the embodiment, by arranging the first bending part and the second bending part, the battery cell pin double-bending structure can be bent more easily and flatly, the operation is simple, and the first bending part and the second bending part can be accurately in place after being bent.

Description

Technical Field

[0001] This utility model relates to the field of battery cell top cover technology, and in particular to a battery cell pin double bending structure and battery cell assembly. Background Technology

[0002] Currently, the battery cell leads on the top cover are mostly single-slot bent structures. During the single-slot bending process, if the bending force, speed, or angle is not properly controlled, the leads may be bent or skewed, resulting in poor contact quality between the battery cell and the circuit board or other connecting components, thus affecting the normal operation of the circuit. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a double-bending structure for battery cell leads and a battery cell assembly, which can be bent and flattened more easily.

[0004] On one hand, the double-bent structure of the battery cell leads according to an embodiment of the present invention includes:

[0005] A pin body, wherein the pin body is provided with a first end and a second end;

[0006] The first bending portion is disposed between the first end and the pin body. The first bending portion is provided with a first guide groove, a first limiting protrusion and a first bending groove. The first limiting protrusion is connected to the first guide groove and the first bending groove respectively.

[0007] The second bending portion is disposed between the second end and the pin body. The second bending portion is provided with a second guide groove, a second limiting protrusion and a second bending groove. The second limiting protrusion is connected to the second guide groove and the second bending groove respectively.

[0008] According to some embodiments of the present invention, the pin body is provided with a first curved portion and a second curved portion. The first curved portion is located on the opposite side of the first guide groove, and the second curved portion is located on the opposite side of the second guide groove. The first curved portion and the second curved portion are located on one side of the pin body, and the first bent portion and the second bent portion are both located on the other side of the pin body. In this case, one side of the pin body is the opposite side of the other side of the pin body.

[0009] According to some embodiments of the present invention, the pin body is provided with a first inner edge, the first curved portion is provided with a second inner edge, the second curved portion is provided with a third inner edge, the first guide groove is provided with a first inclined edge and a second inclined edge, when the first inclined edge and the second inclined edge are in contact, the second inner edge and the first inner edge form a first gap, and the third inner edge and the first inner edge form a second gap.

[0010] According to some embodiments of the present invention, the first bending groove is provided with a third inclined side, a fourth inclined side and a fourth inner side, and the second bending groove is provided with a fifth inclined side, a sixth inclined side and a fifth inner side. When the bending angle of the first bending portion and the second bending portion is 180 degrees, the third inclined side, the fourth inclined side and the fourth inner side form a third bending portion, and the fifth inclined side, the sixth inclined side and the fifth inner side form a fourth bending portion.

[0011] According to some embodiments of the present invention, the first bending groove and the second bending groove are symmetrically designed.

[0012] According to some embodiments of the present invention, the angle range of the first bending groove and the second bending groove is 0 degrees to 180 degrees.

[0013] According to some embodiments of the present invention, the thickness of the pin body ranges from 1.2 mm to 3.0 mm.

[0014] On the other hand, this utility model embodiment also proposes a battery cell assembly, including the battery cell pin double-bent structure as described in the first aspect above.

[0015] The double-bent battery cell lead structure according to this utility model embodiment has at least the following beneficial effects:

[0016] The device comprises a lead body having a first end and a second end; a first bending portion disposed between the first end and the lead body, the first bending portion having a first guide groove, a first limiting protrusion, and a first bending groove, the first limiting protrusion being connected to the first guide groove and the first bending groove respectively; and a second bending portion disposed between the second end and the lead body, the second bending portion having a second guide groove, a second limiting protrusion, and a second bending groove, the second limiting protrusion being connected to the second guide groove and the second bending groove respectively. According to the technical solution of this embodiment, by providing the first bending portion and the second bending portion, the double-bending structure of the battery cell lead can be bent and flattened more easily, and the operation is simple; the first bending portion and the second bending portion can be accurately positioned after bending.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is an overall structural diagram of the double-bent battery cell pin structure according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the battery cell pin double-bending structure of this utility model when it is bent at 90°;

[0021] Figure 3 This is a schematic diagram of the structure of the battery cell pin double-bending structure of this utility model when bent 180°.

[0022] Figure label:

[0023] Pin body 100, first end 110, second end 120, first bent portion 130, second inner edge 131, second bent portion 140, third inner edge 141, first inner edge 150, third bent portion 160, fourth bent portion 170, first bend portion 200, first guide groove 210, first inclined edge 211, second inclined edge 212, first limiting protrusion 220, first bending groove 230, third inclined edge 231, fourth inclined edge 232, fourth inner edge 233, second bend portion 300, second guide groove 310, second limiting protrusion 320, second bending groove 330, fifth inclined edge 331, sixth inclined edge 332, fifth inner edge 333. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] 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. If "first" or "second" is used in the description, it is only for the purpose of 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.

[0026] 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.

[0027] On the one hand, refer to Figures 1 to 3 This utility model embodiment proposes a double-bent structure for battery cell leads, including a lead body 100, which has a first end 110 and a second end 120; a first bending portion 200, which is disposed between the first end 110 and the lead body 100, and has a first guide groove 210, a first limiting protrusion 220 and a first bending groove 230, with the first limiting protrusion 220 connected to the first guide groove 210 and the first bending groove 230 respectively; and a second bending portion 300, which is disposed between the second end 120 and the lead body 100, and has a second guide groove 310, a second limiting protrusion 320 and a second bending groove 330, with the second limiting protrusion 320 connected to the second guide groove 310 and the second bending groove 330 respectively. According to the technical solution of this embodiment, by setting the first bending part 200 and the second bending part 300, the double bending structure of the battery cell pin can be bent and flattened more easily, and the operation is simple. The first bending part 130 and the second bending part 140 can be accurately positioned after bending.

[0028] It should be noted that the lead body 100 is the main part connecting the battery cell to the external circuit, and it carries the function of current transmission. It is typically made of a metal material with good conductivity, such as copper or a copper alloy. The first guide groove 210 guides the lead body 100's path during the first bending process, ensuring accuracy and consistency. The first limiting protrusion 220 acts as a limit before the lead body 100 enters the first bending groove 230, preventing displacement or deformation during bending. The first bending groove 230 is the position where the lead body 100 undergoes its first bend. Precise bending of the lead body 100 at this location can be achieved through specific mold design. The second guide groove 310, similar to the first guide groove 210, guides the lead body 100's path during the second bending process. The second limiting protrusion 320 serves to limit the pin body 100 before it enters the second bending groove 330, further ensuring the stability and accuracy of the pin body 100 during the bending process; the second bending groove 330 is the position where the pin body 100 undergoes a second bend. The second bend further enhances the structural stability and electrical connection reliability of the pin body 100.

[0029] The double-bending structure increases the connection strength between the lead body 100 and the battery cell through two bends, thereby improving the overall structural stability of the battery cell. The double-bending structure also allows for a tighter and more robust electrical connection at the bends, reducing the risk of electrical connection failure due to vibration or impact. Furthermore, the inclusion of both the first and second bends makes the overall structure of the lead body 100 more compact and efficient. In addition, the double-bending structure can be processed using automated production equipment, thereby improving production and assembly efficiency and effectively reducing the production cost of the battery cell leads.

[0030] The pin body 100 is provided with a first bent portion 130 and a second bent portion 140. The first bent portion 130 is located on the opposite side of the first guide groove 210, and the second bent portion 140 is located on the opposite side of the second guide groove 310. The first bent portion 130 and the second bent portion 140 are located on one side of the pin body 100, and the first bent portion 200 and the second bent portion 300 are both located on the other side of the pin body 100. The side of the pin body 100 is the opposite side of the other side of the pin body 100.

[0031] It should be noted that by placing the bending portion and the folding portion on both sides of the pin body 100, the stress on the pin under force can be more effectively distributed, improving the structural stability of the pin. The folding portion design allows the pin to make closer contact with other connecting components, thereby reducing the resistance and heat loss at the electrical connection. At the same time, it can also improve the reliability and stability of the electrical connection of the pin body 100, ensuring the normal operation of the battery cell.

[0032] The pin body 100 has a first inner edge 150 inside, a second inner edge 131 in the first bent portion 130, a third inner edge 141 in the second bent portion 140, and a first guide groove 210 with a first inclined edge 211 and a second inclined edge 212. When the first inclined edge 211 and the second inclined edge 212 are in contact, the second inner edge 131 and the first inner edge 150 form a first gap, and the third inner edge 141 and the first inner edge 150 form a second gap.

[0033] It should be noted that by precisely designing the dimensions of the first inner edge 150, the second inner edge 131, and the third inner edge 141, as well as the tilt angles of the first inclined edge 211 and the second inclined edge 212, a precise fit between the pin body 100 and the connecting component (such as a battery cell or other electronic components) can be ensured. This reduces misalignment or loosening during the connection process and improves connection stability. When the pin body 100 is tightly fitted with the connecting component, the contact resistance decreases accordingly, reducing current loss during transmission and improving the efficiency of the electrical connection. By adjusting the dimensions of the first inner edge 150, the second inner edge 131, and the third inner edge 141, as well as the tilt angles of the first inclined edge 211 and the second inclined edge 212, the pin body 100 can be adapted to connecting components of different sizes and shapes. This allows the pin body 100 to be more widely used in different electronic devices and systems.

[0034] The first bending groove 230 is provided with a third inclined side 231, a fourth inclined side 232 and a fourth inner side 233, and the second bending groove 330 is provided with a fifth inclined side 331, a sixth inclined side 332 and a fifth inner side 333. When the bending angle of the first bending portion 130 and the second bending portion 140 is 180 degrees, the third inclined side 231, the fourth inclined side 232 and the fourth inner side 233 form a third bending portion 160, and the fifth inclined side 331, the sixth inclined side 332 and the fifth inner side 333 form a fourth bending portion 170.

[0035] It should be noted that by designing the third bend 160 formed by the third bevel 231, the fourth bevel 232, and the fourth inner edge 233, and the fourth bend 170 formed by the fifth bevel 331, the sixth bevel 332, and the fifth inner edge 333, additional support can be provided for the pin and stress can be distributed, reducing deformation caused by bending, thereby improving the overall stability and strength of the pin body 100. When the bending angle is 180 degrees, the third bend 160 and the fourth bend 170 can make closer contact with the connecting parts, thereby reducing contact resistance, further reducing current loss during transmission, and improving the efficiency of electrical connection. In addition, the installation and adjustment process of the pin or similar structure can be optimized by adjusting the size and shape of the bevels and inner edges. For example, a structure that is easy to insert and remove can be designed to improve the convenience and efficiency of installation.

[0036] The first bending groove 230 and the second bending groove 330 are symmetrically designed. It should be noted that this symmetrical design allows for a more even distribution of stress on the first bending groove 230 and the second bending groove 330 under load, avoiding structural damage caused by stress concentration. The symmetrical design also allows the first bending groove 230 and the second bending groove 330 to make closer contact with the connecting components after bending, thereby improving the reliability and stability of the contact. This helps reduce contact resistance and improve the efficiency and quality of the electrical connection.

[0037] The angle range of the first bending groove 230 and the second bending groove 330 is from 0 degrees to 180 degrees. It should be noted that this 0-180 degree angle range allows the bending grooves to flexibly adapt to various application scenarios and installation requirements; whether it's a straight connection, a curved connection, or a connection at a specific angle, a suitable bending angle can be found within this range. Furthermore, this 0-180 degree angle range makes the design of the bending grooves more standardized and uniform.

[0038] The thickness of the lead body 100 ranges from 1.2 mm to 3.0 mm. It should be noted that within this thickness range, the lead body 100 can withstand greater mechanical stress and load, thus improving its durability. This makes the lead less prone to damage during long-term use, further extending the lifespan of the battery cell lead. Furthermore, the battery cell lead is compatible with various types of connection components and electronic devices, thereby improving its versatility and compatibility, enabling it to meet the needs of different application scenarios.

[0039] On the other hand, this utility model embodiment also provides a battery cell assembly, including the battery cell pin double-bent structure as described in the first aspect embodiment above.

[0040] In the description of this specification, references to terms such as "one embodiment," "further embodiment," "some specific embodiments," or "some examples," etc., indicate that a specific feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A double-bent structure for battery cell leads, characterized in that, include: A pin body, wherein the pin body is provided with a first end and a second end; The first bending portion is disposed between the first end and the pin body. The first bending portion is provided with a first guide groove, a first limiting protrusion and a first bending groove. The first limiting protrusion is connected to the first guide groove and the first bending groove respectively. The second bending portion is disposed between the second end and the pin body. The second bending portion is provided with a second guide groove, a second limiting protrusion and a second bending groove. The second limiting protrusion is connected to the second guide groove and the second bending groove respectively.

2. The double-bent structure of the battery cell leads according to claim 1, characterized in that, The pin body is provided with a first curved portion and a second curved portion. The first curved portion is located on the opposite side of the first guide groove, and the second curved portion is located on the opposite side of the second guide groove. The first curved portion and the second curved portion are located on one side of the pin body, and the first bent portion and the second bent portion are both located on the other side of the pin body. The one side of the pin body is the opposite side of the other side of the pin body.

3. The double-bent structure of the battery cell leads according to claim 2, characterized in that, The pin body has a first inner edge, the first curved portion has a second inner edge, the second curved portion has a third inner edge, and the first guide groove has a first inclined edge and a second inclined edge. When the first inclined edge and the second inclined edge are in contact, the second inner edge and the first inner edge form a first gap, and the third inner edge and the first inner edge form a second gap.

4. The double-bent structure of the battery cell leads according to claim 2, characterized in that, The first bending groove is provided with a third inclined side, a fourth inclined side and a fourth inner side, and the second bending groove is provided with a fifth inclined side, a sixth inclined side and a fifth inner side. When the bending angle of the first bending portion and the second bending portion is 180 degrees, the third inclined side, the fourth inclined side and the fourth inner side form a third bending portion, and the fifth inclined side, the sixth inclined side and the fifth inner side form a fourth bending portion.

5. The double-bent structure of the battery cell leads according to claim 4, characterized in that, The first bending groove and the second bending groove are designed symmetrically.

6. The double-bent structure of the battery cell leads according to claim 1, characterized in that, The angle range of the first bending groove and the second bending groove is from 0 degrees to 180 degrees.

7. The double-bent structure of the battery cell leads according to claim 1, characterized in that, The thickness of the pin body ranges from 1.2 mm to 3.0 mm.

8. A battery cell assembly, characterized in that, include: The cell lead double-bend structure as described in any one of claims 1 to 7.

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