CN210379230U

CN210379230U - Aluminum-shell battery screw connection equipment

Info

Publication number: CN210379230U
Application number: CN201921637930.2U
Authority: CN
Inventors: 李同春; 袁嫘; 袁家良; 崔园园
Original assignee: Anhui Weizhuo New Energy Technology Co ltd
Current assignee: Anhui Weizhuo New Energy Technology Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-04-21
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses an aluminum shell battery screw connection device, which comprises a shell, a binding post and a battery, wherein the binding post is arranged at both ends of the top of the shell, the battery is arranged in an inner cavity of the shell, the positive and negative poles of the battery are electrically connected through a bolt assembly, the bolt assembly comprises a bolt, a lower nut and an upper nut, the nut cap of the bolt is arranged at the top of a battery pole, the lowest end surface of the bolt and the top end plane of the battery are in the same plane, the lower nut is rotationally connected at the outer side of the screw rod of the bolt, the lower nut is attached to the top surface of the shell, the upper nut is rotationally connected at the upper end of the screw rod of the bolt, and the upper nut is arranged above the lower nut, the design structure is simple, the disassembly and the assembly are convenient, and the connection of the aluminum shell screw is more convenient.

Description

Aluminum-shell battery screw connection equipment

Technical Field

The utility model relates to an aluminum hull battery screwed connection equipment technical field specifically is an aluminum hull battery screwed connection equipment.

Background

The battery pack is formed by connecting a plurality of single battery cells in series and parallel through conductive connecting pieces to form a power supply, the existing aluminum shell battery fixes the battery cells and the conducting strips in a screw connection mode, and the prior art has the defect that once nuts or wires are loosened and fall off, the conductivity between the battery cells and the conducting strips is greatly reduced; the battery core is tightly connected with the conducting strip, the using amount of the bolt is large, and the battery core and the conducting strip are difficult to operate and consume time and labor when being installed and detached.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a screw connection device for an aluminum shell battery, which is used for solving the problem that once a nut or a lead is loosened and falls off, the conductivity between the battery core and the conducting strip is greatly reduced when the battery core and the conducting strip are fixed by the aluminum shell battery in a screw connection mode provided by the background technology; the battery core is tightly connected with the conducting strip, the using amount of the bolt is large, and the battery core and the conducting strip are difficult to operate and consume time and labor when being installed and detached.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides an aluminum hull battery screwed connection equipment, includes shell, terminal and battery, the terminal is located the top both ends of shell, the battery is located the inner chamber of shell, the positive negative pole of battery all carries out electric connection through bolt assembly, bolt assembly includes bolt, lower nut and upper nut, the nut of bolt is located the top of battery utmost point post, the minimum terminal surface of bolt is in the coplanar with the top plane of battery, the lower nut rotates the screw rod outside of connecting at the bolt, the lower nut laminating is at the top surface of shell, the upper nut rotates the screw rod upper end of connecting at the bolt, the upper nut is located the top of lower nut.

Preferably, the bolt assemblies of the two different electrodes of the battery are electrically connected together through a conducting strip, and the conducting strip is fixedly connected between a lower nut and an upper nut of the bolt screw.

Preferably, the outer end of the screw rod of the bolt is provided with symmetrically arranged openings, the outer end of the screw rod of the bolt is provided with a cavity, and the inner wall of the cavity is provided with threads A.

Preferably, the lower end of the upper nut is provided with an inner cavity for mounting a bolt, the inner cavity of the upper nut is integrally connected with a built-in screw, a thread B of the built-in screw is positioned on the outer wall of the built-in screw, and the thread B is matched with the thread A.

Preferably, the top of the upper nut is integrally connected with a rotating sheet.

Preferably, the lower nut and the upper nut are both hexagonal nuts.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses, through design opening and cavity on the bolt, at the built-in screw rod of nut internal design, make the top nut when carrying out fixed connection with the bolt, the screw rod outer end opening part pole of bolt can be because of expanding to two outsides, make the opening part body of rod to the extrusion of top nut inner wall, and play the effect of the further chucking of the inner wall of the body of rod and top nut, thereby further strengthened the connection of the body of rod of top nut and bolt, avoided because of the not hard up reduction of electric conductivity between electric core and the conducting strip that leads to of messenger's conducting strip of top nut.

2. The utility model discloses, through design rotor plate in last nut department for when carrying out the installation of last nut or dismantling, only need twist and move the rotor plate and just can accomplish the nut and fasten or dismantle the process, this design simple structure, convenient to detach, the installation of being convenient for makes the connection of aluminum hull screw more convenient.

Drawings

Fig. 1 is a schematic view of a battery pack mounting structure of the present invention;

fig. 2 is a schematic diagram of the cell structure of the present invention;

FIG. 3 is a schematic view of the outer end structure of the bolt and screw of the present invention;

FIG. 4 is a cross-sectional view of the upper nut of the present invention;

fig. 5 is a cross-sectional view of the upper nut of the present invention.

In the figure: 1. a housing; 2. a binding post; 3. a battery; 4. a bolt assembly; 5. a bolt; 51. an opening; 52. a cavity; 53. a thread A; 6. a lower nut; 7. screwing a nut; 71. a screw is arranged inside; 72. a thread B; 8. a conductive sheet; 9. and rotating the sheet.

Detailed Description

In order to fix the battery core and the conducting strip by the screw connection mode of the aluminum shell battery, once the nut or the lead is loosened and falls off, the conductivity between the battery core and the conducting strip is greatly reduced; electric core and conducting strip are connected closely, and the bolt quantity is big, when carrying out the installation of electric core and conducting strip and dismantling, the operation difficulty to problem consuming time and power, the embodiment of the utility model provides an aluminum hull battery screwed connection equipment. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, the present embodiment provides an aluminum-shell battery screw connection device, which includes a housing 1, terminals 2 and a battery 3, wherein the terminals 2 are located at two ends of a top of the housing 1, the battery 3 is located in an inner cavity of the housing 1, positive and negative electrodes of the battery 3 are electrically connected through a bolt assembly 4, the bolt assembly 4 includes a bolt 5, a lower nut 6 and an upper nut 7, a nut of the bolt 5 is located at a top of a pole of the battery 3, a lowest end surface of the bolt 5 and a top end surface of the battery 3 are located in a same plane, the lower nut 6 is rotatably connected to an outer side of a screw rod of the bolt 5, the lower nut 6 is attached to a top surface of the housing 1, the upper nut 7 is rotatably connected to an upper end of the screw rod of the bolt 5, the upper nut 7 is located above the lower nut 6, the bolt assemblies 4 of two different electrodes of the battery 3 are electrically connected together through a, the outer end of the screw rod of the bolt 5 is provided with symmetrically arranged openings 51, the outer end of the screw rod of the bolt 5 is provided with a cavity 52, the inner wall of the cavity 52 is provided with threads A53, the lower end of the upper nut 7 is provided with an inner cavity for installing the bolt 5, the top of the inner cavity of the upper nut 7 is integrally connected with a built-in screw rod 71, the threads B72 of the built-in screw rod 71 are located on the outer wall of the built-in screw rod 71, the threads B72 are matched with the threads A53, the top of the upper nut 7 is integrally connected with a rotating piece 9, and the lower nut.

In the embodiment, the device is mainly designed around the bolt assembly 4, the working principle of the device is that the nut of the bolt 5 is welded on the pole terminal interface of the battery 3, the lower nut 6 is rotatably connected on the screw rod of the bolt 5, the bottom surface of the lower nut 6 is tightly attached on the outer wall of the battery 3, the screw rod of the bolt 5 is fixed at the outer end of the battery as the pole terminal joint of the battery 3, the conducting strip 8 is placed at the upper end position of the lower nut 6, the upper nut 7 is used for fixing the position of the conducting strip 8 on the screw rod of the bolt 5, the built-in screw rod 71 is a symmetrical round platform structure with a lower bottom surface being slightly thinner than the upper bottom surface, preferably, the diameter of the lower bottom surface is one tenth of the diameter of the upper bottom surface, preferably, the height of the built-in screw rod 71 is one quarter of the height of the inner cavity of the upper nut 7, when the, and at this moment under the effect of built-in screw 71, the two lamella body of rod that lie in opening 51 department on bolt 5 can outwards slightly expand, make the outer end outer wall of bolt 5 extrude to the inner wall of upper nut 7, and play the effect that makes the two lamella body of rod and the inner wall of upper nut 7 further chucking, thereby further strengthened the connection of the body of rod of upper nut 7 and bolt 5, avoided making electric conduction 8 become flexible because of upper nut 7 and lead to electric core and electric conduction 8 between electric conductivity reduce, be equipped with rotor 9 in the device and be used for screwing up nut 7, be convenient for install the operation of dismantling of bolt assembly 4 department.

In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

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

Claims

1. The utility model provides an aluminum hull battery screwed connection equipment, includes shell (1), terminal (2) and battery (3), terminal (2) are located the top both ends of shell (1), battery (3) are located the inner chamber of shell (1), its characterized in that: the positive negative pole of battery (3) all carries out electric connection through bolt assembly (4), bolt assembly (4) are including bolt (5), lower nut (6) and last nut (7), the nut of bolt (5) is located the top of battery (3) utmost point post, the minimum terminal surface of bolt (5) is in the coplanar with the top plane of battery (3), lower nut (6) are rotated and are connected in the screw rod outside of bolt (5), lower nut (6) laminate the top surface at shell (1), last nut (7) are rotated and are connected the screw rod upper end at bolt (5), last nut (7) are located the top of lower nut (6).

2. The aluminum-can battery screw connection device of claim 1, wherein: the two bolt assemblies (4) with different electrodes of the battery (3) are electrically connected together through a conducting strip (8), and the conducting strip (8) is fixedly connected between a lower nut (6) and an upper nut (7) of a screw rod of the bolt (5).

3. The aluminum-can battery screw connection device of claim 2, wherein: the screw rod outer end of bolt (5) is equipped with symmetrical arrangement's opening (51), cavity (52) have been seted up to the screw rod outer end of bolt (5), be equipped with screw thread A (53) on the inner wall of cavity (52).

4. The aluminum-case battery screw connection device according to claim 3, characterized in that: the lower end of the upper nut (7) is provided with an inner cavity for mounting the bolt (5), the inner cavity of the upper nut (7) is integrally connected with a built-in screw rod (71), a thread B (72) of the built-in screw rod (71) is located on the outer wall of the built-in screw rod (71), and the thread B (72) is matched with the thread A (53).

5. The aluminum-can battery screw connection device of claim 1, wherein: the top of the upper nut (7) is integrally connected with a rotating sheet (9).

6. The aluminum-can battery screw connection device of claim 1, wherein: the lower nut (6) and the upper nut (7) are both hexagonal nuts.