Collection terminal structure for lithium battery pack

Abstract

The utility model discloses an acquisition terminal structure for a lithium battery pack, and aims to provide an acquisition terminal structure for a lithium battery pack, which is favorable for improving the working efficiency during installation, and comprises an insulating sleeve shell, the outer side wall of which is of a polygonal structure; the electric conductor is fixed in the insulating sleeve shell; the plurality of positioning sheets are uniformly distributed along the circumferential direction of the insulating sleeve shell, each positioning sheet is outwards expanded from one end to the other end along the radial direction of the insulating sleeve shell to be inclined, one end of each positioning sheet is elastically connected with the outer side wall of the insulating sleeve shell to form a whole, and a movable gap is formed between the other end of each positioning sheet and the outer side wall of the insulating sleeve shell. The beneficial effects of the utility model are that the communication acquisition terminal is positioned after being clamped by the positioning sheet in the assembling hole, the operation is convenient and fast, and the purpose of improving the working efficiency during installation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery pack collection terminal related technical field, especially point to a kind of lithium battery pack collection terminal structure. BACKGROUND

[0002] Box type lithium battery pack is the battery system that multiple lithium battery monomer is combined in a box body. It has wide application in multiple fields: energy storage field, such as 1.5MWh container type large-scale energy storage system, can be used for water power, wind power, solar energy etc. Renewable energy conversion, storage and discharge, be compared to large-scale power bank by industry; Marine field, marine box type power lithium battery module is used as a kind of efficient, reliable and lightweight power supply solution, can improve the efficiency and stability of marine power system, applicable to various complex marine environment; New energy vehicle field: there is lithium battery PACK combined box structure for new energy vehicle, provides power for automobile.

[0003] In the prior art, signal collection terminals are usually arranged at the lithium battery pack shell, and the signal collection terminals are usually screwed with the shell, and then fixed by nuts, which is not conducive to improving the installation efficiency, and the nuts are prone to loosening, resulting in the falling of the collection terminals. UTILITY MODEL CONTENTS

[0004] The utility model is to overcome the low work efficiency of the collection terminal and the lithium battery pack shell assembly in the prior art, and provide a lithium battery pack collection terminal structure which is beneficial to improve the work efficiency during installation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A lithium battery pack collection terminal structure, comprising:

[0007] The outer side wall of the insulating sleeve is a polygonal structure.

[0008] The electric conductor is fixed in the insulating sleeve.

[0009] A plurality of positioning pieces are uniformly distributed along the circumference of the insulating sleeve shell, and the positioning pieces are inclined from one end to the other end along the radial direction of the insulating sleeve shell, and one end of the positioning pieces is elastically connected with the outer side wall of the insulating sleeve shell and forms an integral whole, and the other end of the positioning pieces forms a movable gap with the outer side wall of the insulating sleeve shell. The conductive body facilitates the electrical connection between the lithium battery pack and the external circuit; the communication collection terminal is connected with the battery shell through the insulating sleeve shell, which is beneficial to prevent the battery shell from being electrified and improve the safety in use; when the communication collection terminal is installed on the battery shell, the operator only needs to insert the insulating sleeve shell from the outside of the battery shell into the corresponding assembly hole, and after the plurality of positioning pieces are extruded by the side wall of the assembly hole and elastically shrink inward, the communication collection terminal is positioned after being clamped by the positioning pieces in the assembly hole, which is convenient and fast, and achieves the purpose of improving the work efficiency during installation; the outer side wall of the insulating sleeve shell is polygonal and matched with the corresponding assembly hole, which is beneficial to prevent the communication collection terminal from rotating when connected with the external circuit, and improves the stability of the connection structure.

[0010] As a preferred, the end of the insulating sleeve shell extends outward in the radial direction with an annular stopper, the stopper is fixedly connected with the insulating sleeve shell and forms an integral whole, the end of the positioning piece elastically connected with the outer side wall of the insulating sleeve shell is away from the stopper, the other end of the positioning piece is close to the stopper, and the positioning piece is inclined from the end away from the stopper to the end close to the stopper along the radial direction of the insulating sleeve shell. The stopper is fitted with the outer side wall of the battery shell, which is beneficial to block the assembly hole and improve the sealing performance of the assembly hole; meanwhile, the structural design of the positioning piece facilitates the insertion of the collection terminal into the corresponding assembly hole from the outside of the battery shell.

[0011] As a preferred, a plurality of grooves matched with the plurality of positioning pieces are formed on the outer side wall of the insulating sleeve shell, one end of the positioning piece is integrally formed with one end of the groove, and the movable gap is jointly formed by the other end of the groove and the bottom and the opening end of the groove. The grooves are arranged to improve the matching degree between the insulating sleeve shell and the corresponding assembly hole on the battery shell, reduce the assembly gap therebetween, and thus improve the sealing effect.

[0012] As a preferred, the end of the positioning piece integrally formed with the groove and the opening end of the groove are on the same plane. The assembly gap between the insulating sleeve shell and the corresponding assembly hole on the battery shell is further reduced, and thus the sealing effect is improved.

[0013] As a preferred, the shape of the insulating sleeve shell is a regular polygonal structure. The insulating sleeve shell can be inserted into the corresponding assembly hole on the battery shell from any angle, which is convenient to operate.

[0014] The utility model discloses a beneficial effect is: when communication collection terminal is installed to the battery shell, the operator only needs to insert the insulating cover shell from the outside of the battery shell to the corresponding assembly hole, and a plurality of positioning sheets are inwards elastically contracted after being extruded by the side wall of the assembly hole, thereby making the communication collection terminal get the positioning after being clamped by the positioning sheet in the assembly hole, and the operation is convenient and fast, and the purpose of improving the work efficiency during installation is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model.

[0016] In the drawing: 1. insulating cover shell, 2. conductor, 3. positioning sheet, 4. movable gap, 5. stop block, 6. recess. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0018] It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0019] The relative arrangement of parts, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application unless specifically stated otherwise. Spatially relative terms such as "upper", "lower", "left", "right", and the like, as used in the examples, are intended to describe a relative position of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is inverted, elements described as being on the "lower" side of other elements or features would then be oriented on "upper" sides thereof. Thus, the exemplary term "lower" can encompass both an orientation of inferior to and superior to other elements or features. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. It will also be understood that the terms "first", "second", "third", etc. are used herein, merely for purposes of description and are not intended to limit the scope of the application. All examples shown and discussed herein are intended to be examples only and are not intended to limit the scope of the application. Thus, other examples of the exemplary embodiments can have different values. It is noted that like references and letters indicate like parts throughout the several views of the drawings and, thus, a discussion of elements and features with respect to one drawing figure will be readily extended to other drawing figures and described elements. Thus, the exemplary embodiments can have other examples having different values.

[0020] In addition, it should be noted that the use of "first", "second", and the like, terminology to describe parts of the present application is merely used for convenience and does not limit the scope of the present application, unless otherwise specifically stated, nor is it used to limit the number of components to those that are described using this terminology.

[0021] As Figure 1 In the described embodiments, a terminal collecting structure for a lithium battery pack includes an insulating sleeve 1, the outer wall of which is polygonal in structure; an electrically conductive body 2 fixed in the insulating sleeve 1; and a plurality of positioning pieces 3, which are evenly distributed along the circumference of the insulating sleeve 1, and which are inclined outward along the radial direction of the insulating sleeve 1 from one end to the other end, with the one end being elastically connected to the outer wall of the insulating sleeve 1 and forming a unitary body, and the other end having a clearance 4 formed between it and the outer wall of the insulating sleeve 1.

[0022] The outer side of the end of the insulating sleeve 1 extends radially outward to have an annular stop 5 fixedly connected to the insulating sleeve 1 and forming a unitary body, the one end of the positioning piece 3 elastically connected to the outer wall of the insulating sleeve 1 being away from the stop 5, and the other end of the positioning piece 3 being close to the stop 5, the positioning piece 3 being inclined outward along the radial direction of the insulating sleeve 1 from the one end away from the stop 5 to the other end close to the stop 5.

[0023] The outer side wall of the insulating sleeve 1 is provided with a plurality of recesses 6 matched with the plurality of positioning pieces 3, one end of the positioning piece 3 is integrally formed with one end of the recess 6, and the movable gap 4 is formed by the end of the positioning piece 3 close to the stop block 5 and the bottom and the opening end of the other end of the recess 6. The end of the positioning piece 3 integrally formed with the recess 6 and the opening end of the recess 6 are on the same plane. The shape of the insulating sleeve 1 is a regular polygonal structure.

[0024] When the communication collection terminal is mounted on the battery shell, the operator only needs to insert the insulating sleeve 1 from the outside of the battery shell into the assembly hole, and the plurality of positioning pieces 3 are elastically contracted inwardly after being extruded by the side wall of the assembly hole, so that the communication collection terminal is positioned after being clamped by the positioning pieces 3 in the assembly hole, which is convenient and fast; the shape of the insulating sleeve 1 penetrating the assembly hole is a polygon and is the same as the shape of the assembly hole, which is beneficial to prevent the communication collection terminal from rotating when connected with the external line, and improves the stability of the connection structure. Finally, the lithium battery group in the battery shell 1 is fixed with the communication collection terminal through the corresponding signal line.

[0025] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A data acquisition terminal structure for a lithium battery pack, characterized in that, include: The insulating shell (1) has a polygonal outer wall structure; The conductor (2) is fixed inside the insulating sleeve (1); Several positioning pieces (3) are evenly distributed along the circumference of the insulating shell (1). The positioning pieces (3) are inclined outward from one end to the other along the radial direction of the insulating shell (1). One end of the positioning piece (3) is elastically connected to the outer wall of the insulating shell (1) and forms an integral part. The other end of the positioning piece (3) forms an movable gap (4) between itself and the outer wall of the insulating shell (1).

2. The acquisition terminal structure for a lithium battery pack according to claim 1, characterized in that, An annular stop (5) extends radially outward from the outer end of the insulating sleeve (1). The stop (5) is fixedly connected to the insulating sleeve (1) and forms an integral part. One end of the positioning piece (3) is elastically connected to the outer wall of the insulating sleeve (1) and is far away from the stop (5). The other end of the positioning piece (3) is close to the stop (5). The positioning piece (3) opens radially outward from the end far from the stop (5) to the end close to the stop (5) and is inclined.

3. The acquisition terminal structure for a lithium battery pack according to claim 2, characterized in that, The outer wall of the insulating sleeve (1) is provided with a number of grooves (6) that match a number of positioning pieces (3) one by one. One end of the positioning piece (3) is integrally formed with one end of the groove (6). The movable gap (4) is formed by the end of the positioning piece (3) near the stop (5) and the bottom and opening end of the other end of the groove (6).

4. The acquisition terminal structure for a lithium battery pack according to claim 3, characterized in that, The end of the positioning piece (3) integrally formed with the groove (6) and the end face of the opening of the groove (6) are on the same plane.

5. A data acquisition terminal structure for a lithium battery pack according to claim 1, 2, 3, or 4, characterized in that, The insulating shell (1) has a regular polygonal shape.

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