CN219759880U - Battery module - Google Patents

Abstract

The utility model discloses a battery module, which comprises a battery bracket, a plurality of electric cores and two integrated modules, wherein the electric cores are arranged on the battery bracket, the electric cores are distributed in a plurality of rows, two adjacent rows of electric cores are distributed in a staggered manner and have opposite polarities, the two integrated modules are respectively positioned at two ends of the electric cores and are connected with the battery bracket, each integrated module comprises an insulating sheet and an aluminum row, the aluminum row is connected with the insulating sheet and is connected with an electrode of the electric core, and one integrated module further comprises a detection unit, wherein the detection unit is used for detecting the temperature and the voltage of the electric core. The battery module is simple in structure, high in assembly efficiency, relatively small in size, high in energy density, high in aluminum row welding yield and beneficial to improving the reliability of the battery module.

Description

Battery module

Technical Field

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

Background

The conventional battery module process comprises the steps of firstly horizontally placing a lower cover of a battery support on a tabletop, placing a battery, covering an upper cover of the battery support, connecting the upper and lower parts of the battery support by a screw rod, then placing aluminum rows at corresponding positions one by one, welding the aluminum rows, respectively installing an upper circuit acquisition board and a lower circuit acquisition board after welding, locking, welding and acquiring nickel strips, welding a thermosensitive electric wire, and pasting an insulating sheet, so that the battery module is only installed. Such conventional battery modules have the following defects, defect one: the aluminum rows are placed at the corresponding positions of the battery support in a close manner and limited only by the positioning columns, and swing can occur due to current pressure in the welding process, so that welding deflection is caused. Defect two: the circuit acquisition board needs to be designed and processed by manpower and material resources, and the nickel strap is acquired and welded for the second time, so that the circuit acquisition board is complex in structure, low in assembly efficiency, relatively large in size and low in energy density.

Disclosure of Invention

The utility model aims to provide a battery module which is simple in structure, high in assembly efficiency, relatively small in size, high in energy density and high in aluminum row welding yield, and is beneficial to improving the reliability of the battery module.

In order to achieve the technical effects, the technical scheme of the utility model is as follows:

the utility model discloses a battery module, comprising: a battery holder; the battery cells are arranged on the battery bracket, are distributed in multiple rows, and are distributed in staggered manner and have opposite polarities; the battery pack comprises a battery cell, two integrated modules, a battery support, a battery cell and a detection unit, wherein the two integrated modules are respectively located at two ends of the battery cell and connected to the battery support, each integrated module comprises an insulating sheet and an aluminum row, the aluminum row is connected to the insulating sheet and connected with an electrode of the battery cell, one integrated module further comprises the detection unit, and the detection unit is used for detecting the temperature and the voltage of the battery cell.

In some embodiments, the number of the insulating sheets is two, the aluminum row is sandwiched between the two insulating sheets, and the insulating sheets are provided with avoidance notches so that the aluminum row can be in contact with the battery cells.

In some embodiments, one of the insulating sheet and the battery support is provided with a positioning hole, and the other of the insulating sheet and the battery support is provided with a positioning protrusion, and the positioning protrusion is matched in the positioning hole.

In some specific embodiments, the insulating sheet and the battery holder are connected by a connector inserted into the battery holder through the insulating sheet.

In some further embodiments, the connector comprises a screw or pin.

In some embodiments, the detection unit includes a voltage acquisition member and a temperature acquisition member, the voltage acquisition member and the temperature acquisition member are both bonded on the insulating sheet, and the voltage acquisition member is bonded on at least two aluminum rows.

In some embodiments, the battery holder includes a first holder and a second holder, the second holder being coupled to the first holder, the first holder and the second holder defining a mounting space for mounting the battery cell.

In some specific embodiments, a limiting plate is disposed in the second support, a plurality of limiting holes are disposed on the limiting plate, one of the battery cells is fitted in each of the limiting holes, and one of the integrated modules is connected to the limiting plate.

In some specific embodiments, the first bracket is provided with a mounting plate, one of the integrated modules is connected to the mounting plate, and the mounting plate is provided with an avoidance hole corresponding to the pole of the battery cell.

In some specific embodiments, the first bracket is provided with two matching grooves and external connection polar posts corresponding to the matching grooves, two of the aluminum rows are L-shaped aluminum rows, the horizontal parts of the two L-shaped aluminum rows are matched in the matching grooves, and the vertical parts are matched with the external connection polar posts.

The battery module has the beneficial effects that: because the aluminum row and the detection unit are integrated on the insulating sheet, in the actual assembly process, firstly, the battery cell is placed in the battery bracket, and then the integrated module is placed to fix the battery cell on the battery bracket; and finally, the aluminum row and the battery cell are welded and assembled, the assembly process is simpler, the assembly efficiency of the battery module is improved, and because the aluminum row is integrated on the insulating sheet, the aluminum row and the battery cell are welded after the insulating sheet is fixed on the battery support, the phenomenon that the aluminum row shakes in the welding process is avoided, the welding yield of the aluminum row and the battery cell is improved, and the reliability and the manufacturing yield of the battery module are improved. In addition, because a plurality of electric cores are the multirow and distribute, adjacent two rows of electric cores stagger and distribute and polarity is opposite, and aluminium row and detecting element all integrate at the insulating piece, compare among the prior art aluminium row and install alone, and set up circuit acquisition board, gather nickel strap, heat-sensitive group and insulating piece's technical scheme, the spare part of the battery module of this embodiment is few, is favorable to reducing battery module's size, promotes energy density.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

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

FIG. 2 is an enlarged schematic view of FIG. 1 at circle A;

FIG. 3 is an enlarged schematic view of FIG. 1 at circle B;

fig. 4 is an exploded view of one of the integrated modules of an embodiment of the present utility model.

Reference numerals:

100. a battery holder; 110. a first bracket; 111. a mounting plate; 1111. avoidance holes; 1112. positioning the bulge; 112. a mating groove; 113. externally connected polar posts;

120. a second bracket; 121. a limiting plate; 1211. a limiting hole;

200. a battery cell;

300. an integration module; 310. an insulating sheet; 311. positioning holes; 312. avoiding the notch; 320. an aluminum row; 330. a detection unit; 331. a temperature acquisition member; 332. a voltage acquisition member; 333. and detecting the chip.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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.

The specific structure of the battery module according to the embodiment of the present utility model is described below with reference to fig. 1 to 4.

The utility model discloses a battery module, as shown in fig. 1 and 4, the battery module of the embodiment comprises a battery bracket 100, a plurality of electric cores 200 and two integrated modules 300, wherein the electric cores 200 are arranged on the battery bracket 100, the electric cores 200 are distributed in a plurality of rows, two adjacent rows of electric cores 200 are distributed in a staggered way and have opposite polarities, the two integrated modules 300 are respectively positioned at two ends of the electric cores 200 and are connected with the battery bracket 100, each integrated module 300 comprises an insulating sheet 310 and an aluminum row 320, the aluminum row 320 is connected with the insulating sheet 310 and is connected with an electrode of the electric core 200, one integrated module 300 also comprises a detection unit 330, and the detection unit 330 is used for detecting the temperature and the voltage of the electric core 200.

It can be appreciated that, in the present embodiment, since the aluminum row 320 and the detecting unit 330 are integrated on the insulating sheet 310, during the actual assembly process, the battery cell 200 is first placed in the battery holder 100, and then the integrated module 300 is placed to fix the battery cell on the battery holder 100; finally, the aluminum row 320 and the battery cell 200 are welded to complete assembly, the assembly process is simple, the assembly efficiency of the battery module is improved, and because the aluminum row 320 is integrated on the insulating sheet 310, the insulating sheet 310 is fixed on the battery bracket 100, and then the aluminum row 320 and the battery cell 200 are welded, so that the shaking phenomenon of the aluminum row 320 in the welding process is avoided, the welding yield of the aluminum row 320 and the battery cell 200 is improved, and the reliability and the manufacturing yield of the battery module are improved. In addition, because a plurality of electric cores 200 are the multirow and distribute, adjacent two rows of electric cores 200 stagger and distribute and polarity is opposite, and aluminium row 320 and detecting element 330 are all integrated at insulating piece 310, compare the aluminium row in prior art and install alone, and set up circuit acquisition board, gather nickel strap, heat sensitive group and insulating piece's technical scheme, the spare part of the battery module of this embodiment is few, is favorable to reducing battery module's size, promotes energy density.

In some embodiments, as shown in fig. 4, two insulating sheets 310 are provided, and an aluminum row 320 is sandwiched between the two insulating sheets 310, where the insulating sheets 310 are provided with a relief notch 312 to enable the aluminum row 320 to contact with the battery cell 200. It can be appreciated that in the actual assembly process, the aluminum row 320 is placed on one insulating sheet 310, then the other insulating sheet 310 is placed on the aluminum row 320, and then the two insulating sheets 310 are fixed by hot pressing, so that on one hand, the installation stability of the aluminum row 320 can be ensured, and on the other hand, when the integrated module 300 is installed on the battery bracket 100 to weld the aluminum row 320, the aluminum row 320 cannot shake, so that the welding yield of the aluminum row 320 and the battery cell 200 is improved, and on the other hand, a plurality of aluminum rows 320 can be well isolated, and the phenomenon that the plurality of aluminum rows 320 are in contact to cause short circuit is avoided.

In some embodiments, as shown in fig. 2 to 3, a positioning hole 311 is provided on one of the insulating sheet 310 and the battery holder 100, and a positioning protrusion 1112 is provided on the other of the insulating sheet 310 and the battery holder 100, and the positioning protrusion 1112 is fitted into the positioning hole 311. It will be appreciated that in some embodiments, the insulating sheet 310 is provided with positioning holes 311, and the battery holder 100 is provided with positioning protrusions 1112; in some embodiments, the insulating sheet 310 is provided with positioning protrusions 1112; the position distribution of the positioning protrusions 1112 and the positioning holes 311 may be selected according to actual needs. The connection stability of the insulating sheet 310 and the battery holder 100 can be improved by the cooperation of the positioning holes 311 and the positioning protrusions 1112, so that the aluminum row 320 does not shake when the integrated module 300 is mounted on the battery holder 100 to weld the aluminum row 320, thereby improving the welding yield of the aluminum row 320 and the battery cell 200

In some specific embodiments, the insulating sheet 310 and the battery holder 100 are connected by a connector (not shown) inserted into the battery holder 100 through the insulating sheet 310. It will be appreciated that in the actual assembly process, the insulating sheet 310 is mounted on the battery holder 100, and the positioning protrusions 1112 and the positioning holes 311 cooperate to realize the pre-positioning of the insulating sheet 310, and then the connecting member is inserted into the battery holder 100 through the insulating sheet 310 to complete the connection between the insulating sheet 310 and the battery holder 100, so that the connection mode is simpler, and the connection stability between the battery holder 100 of the insulating sheet 310 and the insulating sheet 310 is higher.

In some more specific embodiments, the connector comprises a screw or pin. The screws or pins are used as the connecting pieces, so that the cost of the connecting pieces is reduced, the cost of the whole battery module is reduced, and the connection between the insulating sheet 310 and the battery bracket 100 is simplified, so that the battery module is convenient to install and detach.

Of course, in other embodiments of the present utility model, the insulating sheet 310 may be fixed to the battery holder 100 by bonding or other means such as snap connection, and is not limited to the connection means of the connector of the present embodiment.

In some embodiments, as shown in fig. 4, the detecting unit 330 includes a voltage collecting member 332 and a temperature collecting member 331, the voltage collecting member 332 and the temperature collecting member 331 are adhered to the insulating sheet 310, and the voltage collecting member 332 is adhered to at least two aluminum rows 320. It can be understood that the voltage collecting member 332 and the temperature collecting member 331 are electrically connected to the detecting chip 333, so as to monitor the working state of the battery module and ensure the working safety of the battery module.

It should be noted that, in the present embodiment, the specific types and control logic of the voltage collecting member 332, the temperature collecting member 331 and the detecting chip 333 may be selected according to actual needs, and specific limitations are not made on the voltage collecting member 332, the temperature collecting member 331 and the detecting chip 333.

In some embodiments, as shown in fig. 1, the battery holder 100 includes a first holder 110 and a second holder 120, the second holder 120 being coupled to the first holder 110, the first holder 110 and the second holder 120 defining a mounting space for mounting the battery cell 200. It can be appreciated that the battery holder 100 is split into the first holder 110 and the second holder 120, which facilitates the assembly of the battery holder 100, and better ensures the stability of the battery cell 200 inside the battery holder 100, thereby ensuring the operational reliability of the battery module.

In some specific embodiments, the second bracket 120 is provided with a limiting plate 121, the limiting plate 121 is provided with a plurality of limiting holes 1211, each limiting hole 1211 is internally matched with one battery cell 200, and the integrated module 300 is connected to the limiting plate 121. It can be appreciated that the battery cell 200 is installed in the limiting hole 1211, so that the stability of the battery cell 200 in the battery bracket 100 can be ensured, the shaking phenomenon of the battery cell 200 during the handling or transportation process is avoided, and the reliability of the battery module is improved. Installing integrated module 300 in limiting plate 121 can promote the connection stability of integrated module 300 and battery support 100 to when having guaranteed to install integrated module 300 and carrying out the welding of aluminium row 320 on the battery support 100, aluminium row 320 can not take place to rock, thereby has promoted the welding yield of aluminium row 320 and electric core 200.

In some specific embodiments, the first bracket 110 is provided with a mounting plate 111, the integrated module 300 is connected to the mounting plate 111, and the mounting plate 111 is provided with a through hole 1111 corresponding to a terminal of the battery cell 200. It can be appreciated that the mounting of the integrated module 300 to the mounting plate 111 can improve the connection stability of the integrated module 300 and the battery holder 100, thereby ensuring that the aluminum row 320 does not shake when the integrated module 300 is mounted to the battery holder 100 for welding the aluminum row 320, thereby improving the welding yield of the aluminum row 320 and the battery cell 200,

in some specific embodiments, the first bracket 110 is provided with two mating grooves 112 and external connection posts 113 corresponding to the mating grooves 112, two of the plurality of aluminum rows 320 are L-shaped aluminum rows 320, horizontal portions of the two L-shaped aluminum rows 320 are mated in the mating grooves 112, and vertical portions are mated with the external connection posts 113. It can be appreciated that the mating groove 112 can prevent the L-shaped aluminum row 320 from shaking, and the external pole 113 can facilitate connection of the battery with external wiring.

Examples:

as shown in fig. 1 to 4, the battery module of the present embodiment includes a battery holder 100, a plurality of battery cells 200, and two integrated modules 300, the battery holder 100 includes a first holder 110 and a second holder 120, the second holder 120 is coupled to the first holder 110, and the first holder 110 and the second holder 120 define an installation space for installing the battery cells 200. The second bracket 120 is provided with a limiting plate 121, the limiting plate 121 is provided with a plurality of limiting holes 1211, each limiting hole 1211 is internally matched with one battery cell 200, and one integrated module 300 is connected to the limiting plate 121. The first bracket 110 is provided with a mounting plate 111, the integrated module 300 is connected to the mounting plate 111, the mounting plate 111 is provided with an avoidance hole 1111 corresponding to the pole of the battery cell 200, and the limiting plate 121 and the mounting plate 111 are provided with positioning protrusions 1112. The plurality of battery cells 200 are distributed in multiple rows, two adjacent rows of battery cells 200 are distributed in a staggered mode and have opposite polarities, two integrated modules 300 are respectively located at two ends of the battery cells 200 and connected to the battery bracket 100, each integrated module 300 comprises two insulating sheets 310 and two aluminum rows 320, and the two insulating sheets 310 are arranged in a clamped mode, and the two aluminum rows 320 are arranged between the two insulating sheets 310. The insulating sheet 310 is provided with positioning holes 311 which are engaged with the positioning protrusions 1112. The aluminum row 320 is connected to the insulating sheet 310 and to the electrodes of the battery cell 200, wherein one integrated module 300 further includes a detecting unit 330, and the detecting unit 330 is used for detecting the temperature and the voltage of the battery cell 200. The detecting unit 330 includes a voltage collecting member 332 and a temperature collecting member 331, the voltage collecting member 332 and the temperature collecting member 331 are both adhered to the insulating sheet 310, and the voltage collecting member 332 is adhered to at least two aluminum rows 320. The first bracket 110 is provided with two matching grooves 112 and external connection poles 113 which are arranged corresponding to the matching grooves 112, two of the plurality of aluminum rows 320 are L-shaped aluminum rows 320, the horizontal parts of the two L-shaped aluminum rows 320 are matched in the matching grooves 112, and the vertical parts are matched with the external connection poles 113.

The battery module of this embodiment has the following advantages:

the first aluminum row 320 and the detection unit 330 are integrated on the insulating sheet 310, so that two parts of a circuit acquisition board and a nickel strap in the prior art are not needed, the structure of the whole battery module is simplified, the whole battery module and the whole size are saved, and the battery module is convenient to assemble;

second,: the multiple battery cells 200 are distributed in multiple rows, and two adjacent rows of battery cells 200 are distributed in a staggered manner, so that the whole battery module and the whole machine size are saved, and the energy density and the whole machine power are indirectly improved;

thirdly, the stability of the integrated aluminum row 320 and the battery cell 200 is better in the welding process, and the welding yield is improved;

fourthly, the whole battery module is installed only by three steps, namely, the battery cell 200 is placed in the battery bracket 100, and then the integrated module 300 is placed to fix the battery cell on the battery bracket 100; the aluminum row 320 and the battery cell 200 are welded to complete assembly, so that the operation time of workers is saved.

In the description of the present specification, reference to the term "some embodiments," "other embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.

Claims (10)

1. The battery module, its characterized in that includes:

a battery holder (100);

the battery support comprises a plurality of battery cells (200), wherein the battery cells (200) are arranged on the battery support (100), the battery cells (200) are distributed in a plurality of rows, and two adjacent rows of battery cells (200) are distributed in a staggered manner and have opposite polarities;

two integrated module (300), two integrated module (300) are located respectively the both ends of electric core (200) and connect in battery support (100), every integrated module (300) include insulating piece (310) and aluminium row (320), aluminium row (320) connect in insulating piece (310) and with the electrode of electric core (200) links to each other, one of them integrated module (300) still includes detecting element (330), detecting element (330) are used for detecting the temperature and the voltage of electric core (200).

2. The battery module according to claim 1, wherein the number of the insulating sheets (310) is two, the aluminum row (320) is sandwiched between the two insulating sheets (310), and the insulating sheets (310) are provided with avoiding notches (312) so that the aluminum row (320) can be in contact with the battery cells (200).

3. The battery module according to claim 1, wherein a positioning hole (311) is provided in one of the insulating sheet (310) and the battery holder (100), a positioning protrusion (1112) is provided in the other of the insulating sheet (310) and the battery holder (100), and the positioning protrusion (1112) is fitted in the positioning hole (311).

4. A battery module according to claim 3, wherein the insulating sheet (310) and the battery holder (100) are connected by a connector inserted into the battery holder (100) through the insulating sheet (310).

5. The battery module of claim 4, wherein the connection member comprises a screw or a pin.

6. The battery module according to any one of claims 1 to 5, wherein the detection unit (330) includes a voltage collecting member (332) and a temperature collecting member (331), the voltage collecting member (332) and the temperature collecting member (331) are both adhered to the insulating sheet (310), and the voltage collecting member (332) is adhered to at least two of the aluminum rows (320).

7. The battery module according to any one of claims 1 to 5, wherein the battery holder (100) includes a first holder (110) and a second holder (120), the second holder (120) being coupled to the first holder (110), the first holder (110) and the second holder (120) defining an installation space for installing the battery cell (200).

8. The battery module according to claim 7, wherein a limiting plate (121) is disposed in the second bracket (120), a plurality of limiting holes (1211) are disposed on the limiting plate (121), one of the battery cells (200) is fitted in each of the limiting holes (1211), and one of the integrated modules (300) is connected to the limiting plate (121).

9. The battery module according to claim 7, wherein the first bracket (110) is provided with a mounting plate (111), one of the integrated modules (300) is connected to the mounting plate (111), and the mounting plate (111) is provided with a through hole (1111) corresponding to a terminal of the battery cell (200).

10. The battery module according to claim 7, wherein the first bracket (110) is provided with two mating grooves (112) and external connection poles (113) corresponding to the mating grooves (112), two of the plurality of aluminum rows (320) are L-shaped aluminum rows (320), horizontal portions of the two L-shaped aluminum rows (320) are mated in the mating grooves (112), and vertical portions are mated with the external connection poles (113).