CN219419365U - Battery module - Google Patents

Abstract

The utility model provides a battery module, which relates to the technical field of batteries and comprises a battery core, an insulating bracket and an output electrode busbar, wherein a limiting groove is formed in one side surface of the insulating bracket, the battery core is contained in the limiting groove, and then the output electrode busbar is embedded and fixed on the insulating bracket and is electrically connected with the battery core through a total busbar and a connecting busbar. Compared with the prior art, the output electrode bus bar is embedded and fixed on the insulating support, so that the output electrode bus bar and the insulating support are fixed into a whole, the output electrode bus bar is fixed by utilizing the insulating support, the output electrode bus bar is prevented from being fixed by arranging an additional supporting seat, the fixing structure of the output electrode bus bar is simplified, and the structure cost is reduced.

Description

Battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery module.

Background

According to the research of the inventor, at present, the positive and negative output poles of the battery module in the prior art adopt independent bus bars, the bus bars of the positive and negative output poles are required to be welded with the connecting bus bars between the battery cells or the poles of the battery cells, and the bus bars of the output poles are independently arranged on the supporting seat, and the fixed installation of the supporting seat under the condition of meeting the use working condition is also required to be considered. The structure is mature in technology, but the supporting seat needs to be opened, and the fixing structure of the supporting seat needs to be designed, so that the structure is complex and the cost is high.

Disclosure of Invention

The utility model aims to provide a battery module which can simplify the fixing structure of an output electrode busbar, reduce the structural cost, and simultaneously has a simple structure without arranging a supporting seat.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the utility model provides a battery module, which includes a plurality of electric cores, an insulating support, an output electrode busbar, a total busbar and a connecting busbar, wherein a containing groove is arranged on the insulating support, a plurality of limiting grooves are formed in the bottom wall of the containing groove, the output electrode busbar is embedded and fixed on the insulating support, the electric cores are assembled in the limiting grooves in a one-to-one correspondence manner, and the connecting busbar and the total busbar are connected with at least part of the electric cores so that the electric cores are electrically connected into a whole, and the total busbar is connected with the output electrode busbar.

In an alternative embodiment, the positive electrode and the negative electrode of each cell are located at one end of the cell away from the bottom wall of the limit groove.

In an alternative embodiment, a plurality of the electric cells are distributed in a plurality of rows, and the connecting buses are used for connecting the positive poles of the electric cells in the same row and connecting the negative poles of the electric cells in adjacent rows.

In an alternative embodiment, the busbar is connected to the positive or negative electrode of the cell at the edge.

In an alternative embodiment, the output electrode busbar is embedded in the insulating bracket, and one end of the output electrode busbar is exposed out of one side surface of the insulating bracket and is connected with the total busbar.

In an alternative embodiment, one end of the output electrode busbar, which is close to the total busbar, is flush with the surface of the insulating support, the total busbar is partially attached to the surface of the insulating support, and the total busbar is attached to the end face of the output electrode busbar.

In an alternative embodiment, one end of the output electrode busbar, which is close to the total busbar, is convexly arranged on the surface of the insulating bracket.

In an alternative embodiment, the height of the protrusion of the end of the output electrode busbar, which is close to the total busbar, with respect to the surface of the insulating support is less than or equal to 5mm.

In an alternative embodiment, the insulating support is further provided with an output electrode protecting cover and a protecting upper cover which are mutually spliced, the protecting upper cover is arranged on the insulating support and covers the battery cell, and the output electrode protecting cover is attached to the output electrode bus.

In an alternative embodiment, the insulating support is rectangular block-shaped, and the output electrode buss bar includes a positive electrode output buss bar and a negative electrode output buss bar, the positive electrode output buss bar and the negative electrode output buss bar being disposed at opposite corners of the insulating support.

The beneficial effects of the embodiment of the utility model include:

the embodiment of the utility model provides a battery module, wherein a limiting groove is formed in one side surface of an insulating support, a battery core is accommodated in the limiting groove, and an output electrode busbar is embedded and fixed on the insulating support and is electrically connected with the battery core through a total busbar and a connecting busbar. Compared with the prior art, the output electrode bus bar is embedded and fixed on the insulating support, so that the output electrode bus bar and the insulating support are fixed into a whole, the output electrode bus bar is fixed by utilizing the insulating support, the output electrode bus bar is prevented from being fixed by arranging an additional supporting seat, the fixing structure of the output electrode bus bar is simplified, and the structure cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded view of a battery module according to an embodiment of the present utility model;

fig. 2 is an overall schematic diagram of a battery module according to an embodiment of the present utility model;

fig. 3 is a schematic view illustrating a partial structure of a battery module according to an embodiment of the present utility model.

Icon: 100-battery module; 110-cell; 130-insulating supports; 131-a limit groove; 133-a receiving groove; 150-total bus bar; 170-connecting buses; 180-protecting an upper cover; 190-output electrode busses; 191-an output electrode protection cover.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Referring to fig. 1 to 3, the present embodiment provides a battery module 100, which simplifies the structure, avoids providing an additional support seat to fix the output electrode bus 190, simplifies the fixing structure of the output electrode bus 190, has good fixing effect on the output electrode bus 190, and reduces the structural cost.

The battery module 100 provided in this embodiment includes a battery cell 110, an insulating bracket 130, a total bus bar 150, a connection bus bar 170 and an output electrode bus bar 190, wherein a limiting groove 131 is disposed on a side surface of the insulating bracket 130, the battery cell 110 is accommodated in the limiting groove 131, and the output electrode bus bar 190 is embedded and fixed on the insulating bracket 130 and electrically connected with the battery cell 110. The plurality of battery cells 110 and the plurality of limit slots 131 may be provided, the plurality of battery cells 110 are assembled in the plurality of limit slots 131 in a one-to-one correspondence, the connection busbar 170 and the total busbar 150 are connected with at least a portion of the battery cells 110, so that the plurality of battery cells 110 are electrically connected into a whole, and the total busbar 150 is connected with the output electrode busbar 190. And the battery cells 110 are cylindrical, and the plurality of battery cells 110 are stacked at the positions of the limiting grooves 131 at the bottom of the insulating bracket 130, wherein the number of the battery cells 110 and the limiting grooves 131 can be determined according to the serial-parallel design of the battery cells 110.

In the present embodiment, the insulating support 130 is provided with a receiving groove 133, the plurality of battery cells 110 are received in the receiving groove 133, the plurality of limiting grooves 131 are formed on the bottom wall of the receiving groove 133, and the output electrode bus 190 is spaced from the receiving groove 133. Specifically, the depth of the accommodating groove 133 is smaller than the height of the battery cell 110, and the battery cell 110 can be protruded from the accommodating groove 133, so that stacking is facilitated.

In this embodiment, the stacking structure of the battery cells 110 is consistent with that of a conventional battery, for example, the battery cells may be stacked in multiple rows in a staggered manner, so as to ensure that the space utilization is maximized. Meanwhile, the number of the connection buses 170 may be plural, each connection bus 170 connects the positive or negative poles of the plurality of cells 110 of the same row, thereby performing the connection, and simultaneously being capable of being connected to the corresponding polarity positions of the cells 110 of the lower group, the total bus 150 is disposed at the edge positions of the plurality of groups of cells 110, thereby enabling the bus to be implemented, and the total bus 150 is connected with the output electrode bus 190, thereby implementing the electrical output.

Further, the positive electrode and the negative electrode of each battery cell 110 are located at one end of the battery cell 110 far away from the bottom wall of the limit groove 131, that is, the positive electrode and the negative electrode of each battery cell 110 are located on the top cover of the battery cell 110, and the positive electrode and the negative electrode of the battery cell 110 are respectively distributed at 1/4 of the circular position of the top cover and are diagonally arranged, so that the connection of the bus bar 170 is facilitated.

In this embodiment, the multiple cells 110 are distributed in multiple rows, and the connection bus bars 170 connect the positive electrodes of the cells 110 in the same row and the negative electrodes of the cells 110 in adjacent rows at the same time. Specifically, each connection bus bar 170 connects the positive or negative poles of the plurality of cells 110 of the same row, thereby making and connecting, while being able to connect to the corresponding polarity positions of the cells 110 of the lower group.

In this embodiment, the bus bar 150 is connected to the positive or negative electrode of the cell 110 at the edge. Specifically, the total bus bar 150 includes a total positive bus bar connected with the positive poles of the cells 110 at the edges of the plurality of rows of cells 110 and a total negative bus bar connected with the negative poles of the cells 110 at the edges of the plurality of rows of cells 110, and is disposed at both side edge positions of the plurality of groups of cells 110, respectively, so as to enable bus bar, and the total bus bar 150 is connected with the output electrode bus bar 190, so as to enable electrical output.

In this embodiment, the insulating support 130 may be a plastic support, which is formed by injection molding, and the output electrode bus bar 190 is fixedly disposed on the insulating support 130, and may be integrally injection molded with the insulating support 130, so that the insulating support 130 and the output electrode bus bar 190 are injection molded together into a part, and this integral injection molding mode integrates the output electrode bus bar 190 and the insulating support 130, so that the control and the installation of the material of the part are simplified, and on the other hand, since the output electrode bus bar 190 is injection molded pre-buried in plastic, the shape and the thickness of the output electrode bus bar 190 can have greater flexibility, plastic particles have gap filling capability in the injection molding process, the output electrode bus bar 190 is tightly wrapped and limited by plastic, and the limiting and fixing effects are better. And the design of output electrode busbar 190 need not other complicated structures and installs fixedly, has simplified overall structure, reduces the structure welt. And the output electrode buss 190 and the plastic bracket are formed as one body so that the vibration and impact resistance of the output electrode buss 190 is improved.

Note that, in this embodiment, the bus bars, such as the output electrode bus bar 190, the total bus bar 150, and the connection bus bar 170, are metal bus bars, and the material thereof may be conductive metals such as copper, aluminum, and nickel.

In this embodiment, the output electrode bus 190 includes an anode output bus and a cathode output bus, while the total bus 150 also includes a total anode bus and a total cathode bus, which are respectively connected with the anode output bus and the cathode output bus, and are respectively disposed on the upper side and the lower side of the multiple groups of the battery cells 110, so that electrode output is achieved.

It is noted that, in the present embodiment, the insulating support 130 has a rectangular block shape, and the positive output bus bar and the negative output bus bar are disposed at opposite corners of the insulating support 130, so that the positive output bus bar and the negative output bus bar are respectively connected to the total positive bus bar and the total negative bus bar.

It should be noted that, in this embodiment, the output electrode bus 190 and the total bus 150 may be welded or may be connected by bolts, so as to achieve electrical connection therebetween.

In this embodiment, the output electrode bus 190 is partially embedded in the insulating bracket 130, and one end of the output electrode bus 190 is exposed on one side surface of the insulating bracket 130 and is connected to the bus 150. Specifically, the output electrode bus bar 190 is buried in the insulating holder 130 and is penetrated inside the insulating holder 130, thereby enabling an external electrode output.

The shape of the portion of the output electrode bus bar 190 embedded in the insulating holder 130 is not particularly limited, and may be a straight bar shape or a bent shape.

In this embodiment, one end of the output electrode busbar 190, which is close to the total busbar 150, is flush with the surface of the insulating bracket 130, the total busbar 150 is partially attached to the surface of the insulating bracket 130, and the total busbar 150 is attached to the end surface of the output electrode busbar 190. Specifically, the bus bar 150 is in a bent structure, and part of the bus bar is attached to the surface of the insulating support 130 and welded to the exposed end surface of the output electrode bus bar 190, so as to realize electrical connection.

In other preferred embodiments of the present utility model, the end of the output electrode buss 190 near the total buss 150 is protruded on the surface of the insulating support 130. Specifically, the protrusion height of the end of the output electrode buss 190 near the total buss 150 with respect to the surface of the insulating support 130 is less than or equal to 5mm. By adopting the output electrode bus bar 190 provided with the protrusions, the total bus bar 150 can be kept in a straight state, and bending of the total bus bar 150 is avoided.

In this embodiment, the insulating support 130 is further provided with an output electrode protecting cover 191, and the output electrode protecting cover 191 is attached to the output electrode bus 190. Specifically, the positive electrode symbol or the negative electrode symbol may be further identified on the output electrode protection cover 191, so as to facilitate discrimination.

Further, the battery module 100 further includes a protective upper cover 180, and the protective upper cover 180 is disposed on the insulating holder 130 and covers the battery cells 110. Specifically, the protective upper cover 180 is spliced with the output electrode protective cover 191, and the shape of the protective upper cover 180 is adapted to the shape of the insulating holder 130, so that the entire battery module 100 can take on a rectangular block shape.

In summary, the present embodiment provides a battery module 100, in which a limiting groove 131 is disposed on a side surface of an insulating bracket 130, a battery cell 110 is accommodated in the limiting groove 131, and then an output electrode bus bar 190 is embedded and fixed on the insulating bracket 130 and electrically connected to the battery cell 110. Compared with the prior art, the output electrode bus 190 is embedded and fixed on the insulating support 130, so that the output electrode bus 190 and the insulating support 130 are fixed into a whole, the insulating support 130 is utilized to fix the output electrode bus 190, the arrangement of an additional supporting seat for fixing the output electrode bus 190 is avoided, the fixing structure of the output electrode bus 190 is simplified, and the structural cost is reduced.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a battery module, its characterized in that includes a plurality of electric cores, insulating support, output utmost point busbar, total busbar and connection busbar, be provided with the storage tank on the insulating support, just a plurality of spacing grooves have been seted up on the diapire of storage tank, output utmost point busbar inlays to be established and fix on the insulating support, a plurality of electric cores one-to-one assemble in a plurality of in the spacing groove, connection busbar with total busbar all with at least part the electric core is connected, so that a plurality of electric core electricity is connected as an organic wholely, just total busbar with output utmost point busbar is connected.

2. The battery module of claim 1, wherein the positive and negative poles of each cell are located at an end of the cell remote from the bottom wall of the limiting slot.

3. The battery module of claim 2, wherein a plurality of the cells are distributed in a plurality of rows, and the connection bus bars simultaneously connect the positive poles of the cells of the same row and the negative poles of the cells of adjacent rows.

4. The battery module of claim 3, wherein the bus bar is connected to the positive or negative electrode of the cell at the edge.

5. The battery module according to claim 1, wherein the output electrode bus bar is partially embedded in the insulating holder, and one end of the output electrode bus bar is exposed to one side surface of the insulating holder and connected to the total bus bar.

6. The battery module according to claim 5, wherein one end of the output electrode busbar, which is close to the total busbar, is flush with the surface of the insulating support, the total busbar is partially attached to the surface of the insulating support, and the total busbar is attached to the end face of the output electrode busbar.

7. The battery module of claim 5, wherein an end of the output electrode buss adjacent to the bus bar is protruding from a surface of the insulating support.

8. The battery module of claim 7, wherein a protrusion height of an end of the output electrode buss adjacent to the total buss with respect to a surface of the insulating support is less than or equal to 5mm.

9. The battery module according to claim 5, wherein the insulating bracket is further provided with an output electrode protecting cover and a protecting upper cover which are mutually spliced, the protecting upper cover is arranged on the insulating bracket and covers the battery cell, and the output electrode protecting cover is attached to the output electrode bus bar.

10. The battery module of claim 9, wherein the insulating support is rectangular block-shaped and the output electrode busses include a positive output bus and a negative output bus disposed at opposite corners of the insulating support.