Anti-loosening clamping structure of electric connecting sheet

Abstract

The utility model relates to the technical field of cylindrical batteries, in particular to an anti-loosening clamping structure for an electric connecting sheet, which comprises a battery shell, comprising a first shell, a second shell connected with the first shell, first positioning pins arranged on the end surfaces of the first shell and the second shell respectively, and battery cell holes formed in the first shell and the second shell; the connecting assembly comprises an electric connecting piece arranged on the end face of the first shell and a clamping piece matched with the positioning pin. The electric connector has the beneficial effects that the clamping piece is matched with the positioning pin on the shell, and when the electric connecting piece is pressed to be connected with the positive electrode and the negative electrode of the battery cell, the clamping piece is clamped with the positioning pin, so that the electric connecting piece is more stable in the subsequent welding or welding process.

Description

Technical Field

[0001] The utility model relates to the technical field of cylindrical batteries, in particular to an anti-loosening clamping structure for an electric connecting piece. Background Art

[0002] The cylindrical battery pack mainly includes a shell, battery cells, electrical connectors, a protection plate, an insulating sheet, etc. The positive and negative ears at both ends of the battery cells are assembled by welding the electrical connectors according to the series and parallel connection requirements of the battery pack. During automatic welding, all the electrical connectors need to be placed on one or both sides of all the battery cells at the same time, which can easily cause the electrical connectors to loosen, resulting in poor welding. Utility Model Content

[0003] In view of the above-mentioned technical problem that the existing electrical connecting piece is not firmly enough when installed, the present utility model is proposed.

[0004] The utility model aims to provide an anti-loosening clamping structure for an electric connecting piece, and aims to solve the problem that the electric connecting piece is not firmly enough during installation.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a battery housing, comprising a first housing and a second housing connected to the first housing, first positioning pins respectively arranged on the end surfaces of the first housing and the second housing, and battery core holes arranged in the first housing and the second housing; and,

[0006] The connecting assembly comprises an electrical connecting piece arranged on the end surface of the first shell and a clamping piece matched with the positioning pin.

[0007] As a preferred solution of the anti-loosening locking structure of the electrical connecting piece of the utility model, wherein: the positioning pin is fixedly connected to the first shell and the second shell respectively, and the positioning pin is cylindrical.

[0008] As a preferred solution of the anti-loosening locking structure of the electrical connecting piece of the utility model, the clamping member includes a plurality of clamping pieces arranged in an array, an arc-shaped section opened on the outer wall of the clamping piece, and a through groove opened between the clamping pieces.

[0009] As a preferred solution of the anti-loosening locking structure of the electrical connecting piece of the utility model, wherein: the arc section is arranged concentrically with the positioning pin, and the radius of the arc section is smaller than the radius of the positioning pin.

[0010] As a preferred solution of the anti-loosening locking structure of the electrical connecting piece of the utility model, wherein: a protrusion is provided on the electrical connecting piece, and the direction of the protrusion is toward the battery core hole.

[0011] As a preferred solution of the anti-loosening locking structure of the electrical connection piece of the utility model, wherein: a positioning hole is opened on the end surface of the electrical connection piece, and a positioning column cooperating with the positioning hole is fixedly provided on the end surface of the first shell.

[0012] As a preferred solution of the anti-loosening locking structure of the electrical connecting piece of the utility model, wherein: the electrical connecting piece is extended with a mounting piece, the outer wall of the mounting piece is protruded with a U-shaped mounting piece, and the end of the U-shaped mounting piece is fixedly provided with a limiting piece.

[0013] As a preferred solution of the anti-loosening clamping structure of the electrical connecting piece of the utility model, wherein: a clamping plate is fixedly provided on the outer wall of the first shell, and the clamping plate is located below the limiting piece.

[0014] The beneficial effect of the anti-loosening locking structure of the electrical connecting piece of the utility model is that through the cooperation between the clamping piece and the positioning pin on the shell, when the electrical connecting piece is pressed and connected to the positive and negative poles of the battery cell, the clamping piece and the positioning pin are also clamped with each other, making the electrical connecting piece more stable during the subsequent melting or welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0016] Figure 1 It is an overall schematic diagram of the anti-loosening locking structure of the electrical connecting piece in the utility model.

[0017] Figure 2 It is an enlarged view of the anti-loosening locking structure A of the electrical connecting piece in the utility model.

[0018] Figure 3 It is a top view of the anti-loosening locking structure of the electrical connecting piece in the utility model.

[0019] Figure 4 It is an enlarged view of the anti-loosening locking structure C of the electrical connecting piece in the utility model.

[0020] Figure 5 It is a cross-sectional view of the anti-loosening locking structure of the electrical connecting piece in the utility model.

[0021] Figure 6 It is an enlarged view of the D position of the anti-loosening locking structure of the electrical connecting piece in the present invention.

[0022] Figure 7 It is an enlarged view of the anti-loosening locking structure B of the electrical connecting piece in the utility model. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Example 1, reference Figure 1 to Figure 6 , is the first embodiment of the utility model, which provides an anti-loosening locking structure for an electrical connection piece, including a battery housing 100, including a first housing 101 and a second housing 102 connected to the first housing 101, first positioning pins 103 respectively arranged on the end surfaces of the first housing 101 and the second housing 102, and a battery core hole 104 arranged in the first housing 101 and the second housing 102; and,

[0027] The connection assembly 200 includes an electrical connection piece 201 disposed on the end surface of the first housing 101 and a clamping piece 202 matched with the positioning pin 103 .

[0028] The positioning pin 103 is fixedly connected to the first shell 101 and the second shell 102 respectively, and the positioning pin 103 is cylindrical.

[0029] The first housing 101 and the second housing 102 are provided with a first mounting hole 105 and a second mounting hole 106 on their outer walls, and the first mounting hole 105 and the second mounting hole 106 can be used in conjunction with other external parts to facilitate the installation of multiple battery packs;

[0030] Second positioning pins 107 are also fixedly disposed on the outer walls of the first shell 101 and the second shell 102 , and the second positioning pins 107 are disposed to facilitate connection and positioning between multiple battery packs.

[0031] A pin hole 108 is further provided above the first shell 101 and the second shell 102. A pin is installed in the pin hole 108 to facilitate the connection between multiple battery shells 100 in the vertical direction; a clamping strip 109 is provided on both sides of the first shell 101 and the second shell 102, and a sliding groove is provided in the clamping strip to facilitate the horizontal connection of multiple battery shells 100.

[0032] Preferably, the first shell 101 is connected to the second shell 102 by a snap-fit, there are 2 positioning pins 103, both of which are cylindrical, there are 4 electrical connecting sheets 201, and the 4 electrical connecting sheets are respectively arranged at the upper part of the first shell 101 and the lower part of the second shell 102, and multiple battery cells 104 are arranged inside the first shell 101 and the second shell 102, and the 4 electrical connecting sheets are 2 sheets in a group and are respectively arranged at both ends of the battery cell hole 104.

[0033] The clamping member 202 includes a plurality of clamping pieces 202a arranged in an array, arc-shaped cut surfaces 202c formed on the outer walls of the clamping pieces 202a, and through slots 202b formed between the clamping pieces 202a.

[0034] Preferably, the electrical connection sheet 201 and the clamping member 202 are integrally arranged and have a certain elastic deformation capability. A circular through hole 205 is also provided on the surface of the electrical connection sheet 201. The through hole 205 facilitates the connection, fixing and installation of a battery pack or other electrical equipment.

[0035] The arc section 202 c is concentrically disposed with the positioning pin 103 , and the radius of the arc section 202 c is smaller than the radius of the positioning pin 103 .

[0036] A protrusion 203 is formed on the electrical connection sheet 201 , and the protrusion 203 faces the battery core hole 104 .

[0037] Preferably, the protrusion 203 is arranged according to the number of the battery core holes 104, and the radius of the arc section 202c of the protrusion 203 facing the positive and negative poles of the battery core 104 is smaller than the radius of the positioning pin 103, that is, when the clamping piece 202a is not installed, the radius of the circular through hole surrounded by the arc sections 202c opened on the multiple clamping pieces 202a is smaller than the radius of the positioning pin 103, and when the electrical connection piece 201 is installed, the positioning pin 103 pushes up the multiple clamping pieces 202a outward at the same time. Until the positioning pin 103 passes through the electrical connecting piece 201, that is, the protrusion 203 on the electrical connecting piece 201 is completely fitted into the battery cell hole 104, the elastic deformation of multiple clamping pieces 202a simultaneously applies inward and downward pressure to the positioning pin 103, so that the electrical connecting piece 201 can be firmly fitted on the battery cell 104 hole. The battery cell hole 104 is used to store batteries. The protrusion 203 can make the electrical connecting piece 201 contact the battery cell in the battery cell hole 104 more closely.

[0038] In summary, when the cylindrical battery packs 100 are connected in series and parallel, it is necessary to install an electrical connecting piece 201 between the battery cells 104. The utility model adopts a clamping piece 202 to cooperate with the positioning pins 103 on the first shell 101 and the second shell 102, which can not only play a role in more precise installation of the electrical connecting piece 201, but also through the arrangement of multiple clamping pieces 202a and the arc-shaped slices 202c opened on the clamping pieces 202a, the electrical connecting piece 201 can be stably installed on the hole 104, preventing the electrical connecting piece 201 from loosening during dissolution or welding.

[0039] Example 2, reference Figure 1 to Figure 7 , which is the second embodiment of the utility model, further provides an anti-loosening locking structure of an electrical connection piece, including a positioning hole 205 formed on the end surface of the electrical connection piece 201 , and a positioning column 101 a matched with the positioning hole 205 fixedly disposed on the end surface of the first housing 101 .

[0040] The electrical connection piece 201 is extended to form a mounting piece 204 , and a U-shaped mounting piece 204 a is protruded from the outer wall of the mounting piece 204 . A limiting piece 204 b is fixedly provided at the end of the U-shaped mounting piece 204 a .

[0041] A clamping plate 105 is fixedly disposed on the outer wall of the first housing 101 , and the clamping plate 105 is located below the limiting piece 204 b .

[0042] Preferably, multiple electrical connecting pieces 201 are provided, the number of mounting pieces 204 matches the number of electrical connecting pieces 201, the U-shaped mounting piece 204a protrudes away from the battery housing 100 to facilitate installation with other battery housings 100 or other components, and the extending portion of the electrical connecting piece 201 is arranged parallel to the axis of the battery hole 104.

[0043] In summary, the electrical connecting piece 201 is installed on the first shell 101 or the second shell 102 through the limiting piece 204b. When the battery shell 100 needs to be connected with other battery shells 100 or other components, the battery shell 100 can be positioned and connected with other battery shells 100 or other components by opening a corresponding slot in the corresponding component or battery shell 100 through the U-shaped mounting piece 204a.

[0044] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0046] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An anti-loosening locking structure for an electrical connection piece, characterized in that: include, A battery housing (100) comprises a first housing (101) and a second housing (102) connected to the first housing (101), first positioning pins (103) respectively arranged on end surfaces of the first housing (101) and the second housing (102), and battery core holes (104) arranged in the first housing (101) and the second housing (102); and, The connection assembly (200) comprises an electrical connection sheet (201) provided on the end surface of the first housing (101) and a clamping piece (202) matched with the positioning pin (103).

2. The anti-loosening locking structure of the electrical connection piece according to claim 1, characterized in that: The positioning pin (103) is fixedly connected to the first shell (101) and the second shell (102) respectively, and the positioning pin (103) is cylindrical.

3. The anti-loosening locking structure of the electrical connection piece according to claim 2, characterized in that: The clamping member (202) comprises a plurality of clamping sheets (202a) arranged in an array, an arc-shaped section (202c) formed on the outer wall of the clamping sheets (202a), and a through slot (202b) formed between the clamping sheets (202a).

4. The anti-loosening locking structure of the electrical connection piece according to claim 3, characterized in that: The arc-shaped section (202c) is arranged concentrically with the positioning pin (103), and the radius of the arc-shaped section (202c) is smaller than the radius of the positioning pin (103).

5. The anti-loosening locking structure of the electrical connection piece according to claim 4, characterized in that: The electrical connection sheet (201) is provided with a protrusion (203), and the protrusion (203) is directed toward the battery core hole (104).

6. The anti-loosening locking structure of the electrical connection piece according to claim 5, characterized in that: The end surface of the electrical connection sheet (201) is provided with a positioning hole (205), and the end surface of the first housing (101) is fixedly provided with a positioning column (101a) that matches the positioning hole (205).

7. The anti-loosening locking structure of the electrical connection piece according to claim 6, characterized in that: The electrical connection piece (201) is extended with a mounting piece (204), the outer wall of the mounting piece (204) is protruded with a U-shaped mounting piece (204a), and a limiting piece (204b) is fixedly provided at the end of the U-shaped mounting piece (204a).

8. The anti-loosening locking structure of the electrical connection piece according to claim 7, characterized in that: A clamping plate (105) is fixedly provided on the outer wall of the first shell (101), and the clamping plate (105) is located below the limiting plate (204b).

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