CN213459996U

CN213459996U - Connection structure between module, battery module and power battery

Info

Publication number: CN213459996U
Application number: CN202021558999.9U
Authority: CN
Inventors: 刘广强; 程志刚; 王明旺; 王华文
Original assignee: Sunwoda Huizhou Power New Energy Co Ltd
Current assignee: Sunwoda Huizhou Power New Energy Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-06-15
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses an inter-module connecting structure, a battery module and a power battery; the inter-module connecting structure comprises a connecting component and a shock-proof shell; the connecting component is provided with two plugging positions, each plugging position is used for being plugged with one terminal of one battery module, and the connecting component is electrically connected with the terminal; the anti-touch shell is provided with a limiting groove, the connecting assembly is arranged in the limiting groove, the inserting position is arranged at the notch of the limiting groove, and the anti-touch shell is insulated. The utility model discloses connection structure, battery module and power battery between the module, connection structure is in the same place two battery module electricity links together through the grafting mode between the module, and connection structure simple structure between the module, it is with low costs, and in the battery pack production line when the lock joint battery module with battery module terminal be connected fast, can improve the packaging efficiency.

Description

Connection structure between module, battery module and power battery

Technical Field

The utility model relates to battery module field especially involves a connection structure, battery module and power battery between module.

Background

Among the present electric automobile battery module, the main mounting means between the battery module is the mode that stretches out terminal lock copper bar, but under the connection design like this, the terminal design of module is complicated, the lock position that needs to consider, overflow, creepage and electric clearance scheduling problem are more, lead to the design complicated, the cost is on the high side, indicate to touch protection design also need independent design about IPXXB, and the man-hour of operation when lock connects the battery module in the battery equipment production line is longer moreover, and packaging efficiency is lower.

Disclosure of Invention

The utility model aims at providing a connection structure, battery module and power battery between module for solve that connection structure is complicated and the man-hour of operation when the locking connects the battery module in the battery equipment is produced to current battery module is longer, the lower problem of packaging efficiency.

The utility model provides a connection structure between module, include:

the connecting component is provided with two plugging positions, each plugging position is used for being plugged with one terminal of one battery module, and the connecting component is electrically connected with the terminal;

the anti-touch shell is provided with a limiting groove, the connecting assembly is arranged in the limiting groove, the inserting position is arranged at the notch of the limiting groove, and the anti-touch shell is insulated.

Further, the connection assembly includes:

the external contact piece is of an arch structure and comprises a first middle plate and first antennae arranged at two ends of the first middle plate;

the inner contact piece is arranged between the two first antennae of the outer contact piece, and the middle part of the inner contact piece is connected with the first middle plate;

the two ends of the inner contact sheet and the adjacent first antenna form a plug-in position respectively, and the outer contact sheet is conductive and/or the inner contact sheet is conductive.

Furthermore, the inner contact piece is of an arch structure and comprises a second middle plate and second antennae arranged at two ends of the second middle plate;

one first antenna and an adjacent second antenna form a plug position, and the second middle plate is connected with the first middle plate.

Furthermore, the first antenna and the second antenna which form the plugging position are bent towards the directions away from each other.

Further, the second middle plate is connected with the first middle plate through a connection point.

Furthermore, one side of the plugging position facing the terminal is provided with a positioning bulge.

Further, the lateral wall of spacing groove is equipped with spacing arch, and spacing arch is used for with coupling assembling joint.

Furthermore, the inserting position is arranged in the notch of the limiting groove.

The utility model also provides a battery module, including casing, electric core and terminal, in electric core located the casing, and be connected with the terminal electricity, the terminal includes inside terminal, bulge and grafting portion, and inside terminal is located in the casing and is connected with electric core electricity, and the casing is outside to bulge and grafting portion located, and inside terminal and grafting portion are connected to the bulge, and the vertical setting of grafting portion, and set up with the casing interval, and grafting portion pegs graft with foretell grafting position.

The utility model also provides a power battery, including foretell module connection structure and a plurality of foretell battery module, connect through module connection structure between the battery module.

The utility model discloses connection structure, battery module and power battery between the module, connection structure is in the same place two battery module electricity links together through the grafting mode between the module, and connection structure simple structure between the module, it is with low costs, and in the battery pack production line when the lock joint battery module with battery module terminal be connected fast, can improve the packaging efficiency.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a connection structure between modules of the present invention;

fig. 2 is a schematic structural view of an embodiment of a connecting member in the inter-module connecting structure of the present invention;

FIG. 3 is a schematic structural view of an embodiment of a shock-proof housing in the inter-module connection structure of the present invention;

fig. 4 is a schematic structural view of an embodiment of the power battery of the present invention, in which a circle a is a schematic structural view of a plug-in connection structure between a terminal and a module;

fig. 5 is an enlarged schematic view of a portion of circle a in fig. 4.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The technical solutions in the embodiments of the present invention will be described in a clear and healthy way in conjunction with the 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 efforts belong to the protection scope of the present invention.

It will be understood by those skilled in the art that, as used herein, the singular forms "a", "an", "the" and "the" may include the plural forms as well, unless expressly stated otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Referring to fig. 1-5, an embodiment of the connection structure between modules of the present invention includes a connection assembly 2 and a shock-proof housing 1; the connecting component 2 is provided with two plugging positions 24, each plugging position 24 is used for being plugged with one terminal of one battery module 3, and the connecting component 2 is electrically connected with the terminal; prevent touching shell 1 and be equipped with spacing groove 11, coupling assembling 2 locates the spacing inslot 11, and grafting position 24 sets up in the notch 12 department of spacing groove 11, and prevent touching shell 1 for insulating.

Specifically, coupling assembling 2 plays and connects two battery module 3 and electrically conductive effect, grafting position 24 plays the effect of the terminal of contact battery module 3, the effect that the protection against electric shock shell 1 played insulation protection, connection structure is connected two battery module 3 electricity through the grafting mode between the module and is in the same place, connection structure simple structure between the module, it is with low costs, and in the battery equipment production line when the lock connects battery module 3 with battery module 3 terminal connection fast, can improve the packaging efficiency. In some embodiments, the touch proof housing 1 is made of an insulating material.

Further, in some embodiments, the connecting assembly 2 comprises an outer contact piece 21 and an inner contact piece 22; the external contact piece 21 is of an arch structure and comprises a first middle plate 211 and first antennae 212 arranged at two ends of the first middle plate 211; the inner contact piece 22 is arranged between the two first antennae 212 of the outer contact piece 21, and the middle part of the inner contact piece is connected with the first middle plate 211; the two ends of the inner contact strip 22 form plug-in sites 24 with adjacent first contacts 212, the outer contact strip 21 being electrically conductive and/or the inner contact strip 22 being electrically conductive.

It should be noted that the external contact piece 21 and the internal contact piece 22 are both connected to the terminals of the battery module 3, and the external contact piece 21 and the internal contact piece 22 may both function as a conductive function, or one of them may function as a conductive function, preferably both function as a conductive function, and the conductive effect is more stable.

In some embodiments, the inner contact 22 may be a strip shape, and both ends of the strip shape and the first antenna 212 form the docking station 24.

Further, in the present embodiment, the inner contact piece 22 has an arch structure, and includes a second middle plate 221 and second antennas 222 disposed at two ends of the second middle plate 221; one first antenna 212 and an adjacent second antenna 222 form a plug socket 24, and the second midplane 221 is connected to the first midplane 211. The arched structure is resilient and can be easily inserted when the terminal is inserted into the mating site 24, and can provide a pressing force after insertion, making the connection more stable, and reducing the size and cost of the inner contact piece 22.

It should be noted that, the materials of the external contact piece 21 and the internal contact piece 22 are preferably, but not limited to, phosphor bronze, as long as the conductivity is high and a certain amount of elasticity satisfies the overcurrent temperature rise requirement and the elastic mounting requirement, and the surface plating layer is preferably, but not limited to, silver plating.

It should be noted that in some embodiments, the external contact piece 21 and the internal contact piece 22 are preferably bent, and may be formed by other methods such as lathe milling.

Further, in the present embodiment, the first antenna 212 and the second antenna 222 constituting the docking station 24 are bent in directions away from each other. Can make things convenient for the terminal to insert grafting position 24 more, and elastic deformation ability is better, conveniently provides the power of tightening to the terminal, makes the terminal and the grafting position 24 connection firm.

Further, in some embodiments, the second midplane 221 is connected to the first midplane 211 by a connection point 23. The connection point 23 may be a position or a structure for connecting the second middle plate 221 and the first middle plate 211, and the second middle plate 221 and the first middle plate 211 are connected by welding or adhering through the connection point 23. The second intermediate plate 221 is coupled to the first intermediate plate 211, so that the coupling unit 2 can be moved together to prevent the inner contact piece 22 from falling.

It should be noted that the connection of the external contact piece 21 and the internal contact piece 22 is preferably, but not limited to, welding, and may be directly injection molded in plastic, depending on the stability of the plastic.

Further, in some embodiments, the connection point 23 is electrically conductive. The connecting assembly 2 has a better conductive effect.

Further, in some embodiments, the side of the plug site 24 facing the terminal is provided with a positioning projection. Correspondingly, be equipped with the joint groove on the terminal, when the terminal inserted grafting position 24, the joint groove was inserted to the location arch, can play the effect that improves the grafting compactness, improves the area of contact of coupling assembling 2 and terminal moreover, improves coupling assembling 2's electrically conductive effect.

It should be noted that the positioning projection is preferably, but not limited to, a hemispherical shape.

Further, in this embodiment, the lateral wall of the limiting groove 11 is provided with a limiting protrusion 13, and the limiting protrusion 13 is used for being clamped with the connecting assembly 2. When coupling assembling 2 inserted spacing inslot 11, spacing arch 13 played fixed connection assembly 2 effect, made things convenient for coupling assembling 2 to assemble with preventing touching shell 1.

Referring to fig. 1 and 3, further, in the present embodiment, the insertion site 24 is disposed in the notch 12 of the limiting groove 11. The touch-proof housing 1 also serves to restrain the terminal when it is inserted into the plug-in position 24.

In some embodiments, the touch-proof housing 1 is provided with a blocking plate 14 at the notch 12, and the blocking plate 14 acts to restrain the terminal when the terminal is inserted into the insertion site 24.

The utility model also provides a battery module 3, including casing, electric core and terminal, in the casing was located to the electric core, and was connected with the terminal electricity, the terminal included inside terminal, bulge 31 and grafting portion 32, and inside terminal is located in the casing and is connected with electric core electricity, and the casing is outside to bulge 31 and grafting portion 32, and bulge 31 connection inside terminal and grafting portion 32, the vertical setting of grafting portion 32, and set up with the casing interval, and grafting portion 32 pegs graft with foretell grafting position 24.

The utility model also provides a power battery, including foretell module connection structure and a plurality of foretell battery module 3, connect through module connection structure between the battery module 3.

The utility model discloses connection structure, battery module 3 and power battery between the module, connection structure is connected two 3 electricity of battery module through the grafting mode between the module and is in the same place, and connection structure simple structure between the module is with low costs, and in the battery pack production line when the lock connect battery module 3 with the 3 terminals of battery module be connected fast, can improve the packaging efficiency.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. The utility model provides a connection structure between module which characterized in that includes:

the connecting assembly is provided with two plugging positions, each plugging position is used for being plugged with one terminal of one battery module, and the connecting assembly is electrically connected with the terminal;

prevent touching the shell, be equipped with the spacing groove, coupling assembling locates the spacing inslot, the grafting position sets up the notch department in spacing groove, prevent touching the shell and be insulating.

2. The inter-module connection structure according to claim 1, wherein the connection member comprises:

two ends of the inner contact sheet and the adjacent first antenna form a plug-in position respectively, and the outer contact sheet is conductive and/or the inner contact sheet is conductive.

3. The inter-module connection structure according to claim 2, wherein the inner contact piece is an arch structure and includes a second middle plate and second antennas provided at both ends of the second middle plate;

one first antenna and one adjacent second antenna form the inserting position, and the second middle plate is connected with the first middle plate.

4. The inter-module connection structure according to claim 3, wherein the first antenna and the second antenna constituting the socket are bent in directions away from each other.

5. The inter-module connection structure according to claim 3, wherein the second midplane is connected to the first midplane by a connection point.

6. The inter-module connection structure according to claim 1, wherein a positioning protrusion is provided on a side of the insertion site facing the terminal.

7. The connection structure between modules as claimed in claim 1, wherein the side wall of the spacing groove is provided with a spacing protrusion, and the spacing protrusion is used for clamping with the connection assembly.

8. The inter-module connection structure according to claim 1, wherein the insertion site is disposed in a notch of the limiting groove.

9. A battery module is characterized by comprising a shell, a battery cell and a terminal, wherein the battery cell is arranged in the shell and electrically connected with the terminal, the terminal comprises an internal terminal, a protruding part and a plugging part, the internal terminal is arranged in the shell and electrically connected with the battery cell, the protruding part and the plugging part are arranged outside the shell, the protruding part is connected with the internal terminal and the plugging part, the plugging part is vertically arranged and is spaced from the shell, and the plugging part is plugged with the plugging position according to any one of claims 1 to 8.

10. A power battery comprising the inter-module connection structure according to claims 1 to 8 and a plurality of battery modules according to claim 9, wherein the battery modules are connected to each other by the inter-module connection structure.