CN217062415U - Storage battery and automobile - Google Patents

Abstract

The utility model belongs to the technical field of the battery, especially, relate to a battery and car for the mode operation of connecting electric core through the busbar is numerous and diverse among the battery in the solution correlation technique, the lower problem of reliability. The battery includes battery module and circuit board, is provided with a plurality of electricity connection pieces on the circuit board, and the battery module includes a plurality of electric cores of arranging in proper order, and the utmost point ear of electric core is connected with the electricity connection piece electricity that corresponds. Compared with the prior art in which a bus bar is used for connection, the circuit board provided with the electric connection sheet is used for connecting the electric core, the use of parts is reduced, and the improvement of the connection reliability is facilitated.

Description

Storage battery and automobile

Technical Field

The embodiment of the utility model provides a relate to battery technical field, especially relate to a battery and car.

Background

With the wide development of new energy automobiles, the application of the power battery module is more and more extensive. The power battery module is a combination body which is used for providing electric energy for the new energy automobile after the electric core is combined with the reinforcing device.

In the related art, after a plurality of battery cells are stacked in order, a bus bar is usually arranged at one end of each battery cell, so that a tab of each battery cell is welded with the bus bar, and the bus bar is also welded with collection wire harnesses of voltage, current and the like, so that the collection of the voltage and the current of each battery cell is realized. However, the bus connection method is complicated and has low reliability.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a battery and car for the mode operation of connecting electric core through the busbar is numerous and diverse among the battery among the solution correlation technique, the lower problem of reliability.

In a first aspect, an embodiment of the utility model provides a storage battery, including shell, battery module and circuit board, the battery module with the circuit board is located in the shell, be provided with a plurality of electricity connection pieces on the circuit board, the battery module includes a plurality of electric cores of arranging in proper order, the utmost point ear of electric core with correspond the electricity connection piece electricity is connected.

In a possible implementation manner, in the adjacent battery cells, the adjacent and opposite-electrical-property tabs are connected together to form a connecting portion, and the connecting portion is electrically connected with the corresponding electrical connection sheet.

In one possible implementation, the electrical connection pad is a nickel pad.

In a possible implementation manner, the connector further comprises a connector, the connector is electrically connected with the circuit board, a sealing ring is arranged between the connector and the shell, and the connector is in threaded connection with the shell.

In a possible implementation manner, the battery module further comprises a heating sheet and a heat conducting sheet, the heating sheet and the heat conducting sheet are arranged on one side of the circuit board, which is far away from the battery module, and the heat conducting sheet is clamped between the heating sheet and the circuit board.

In a possible implementation manner, the battery module further comprises an assembly frame, the battery module is fixed in the assembly frame, and the circuit board is connected with the assembly frame.

In a possible implementation manner, the assembly frame includes a first support, a second support and a third support, the first support includes a bottom plate and a first side plate and a second side plate which are arranged oppositely, the bottom plate is arranged between the first side plate and the second side plate, two ends of the second support are respectively connected with the first side plate and the second side plate, two ends of the third support are respectively connected with the first side plate and the second side plate, and the first side plate and the second side plate are arranged oppositely.

In a possible implementation manner, the circuit board is provided with a positioning hole, the first side plate and/or the second side plate is/are provided with a positioning column which is over against the positioning hole, the positioning column is inserted into the positioning hole, and one end of the positioning column, which faces the circuit board, is provided with a spherical surface.

In a possible implementation manner, the battery module further includes a buffer layer, and the buffer layer is sandwiched between the housing and the heating sheet, and/or the buffer layer is sandwiched between the first side plate and the battery module, and/or the buffer layer is sandwiched between the second side plate and the battery module.

In a second aspect, the embodiment of the present invention further provides an automobile, including the above-mentioned battery.

The embodiment of the utility model provides a battery and car, shell, battery module and circuit board are located the shell, are provided with a plurality of electricity connection pieces on the circuit board, and the battery module includes a plurality of electric cores of arranging in proper order, and the utmost point ear of electric core is connected with the electricity connection piece electricity that corresponds. Compared with the prior art in which a bus bar is used for connection, the circuit board provided with the electric connection sheet is used for connecting the electric core, the use of parts is reduced, and the improvement of the connection reliability is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a battery module, a circuit board and an assembly frame according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a series connection of battery cells in a battery module provided in an embodiment of the present invention;

fig. 3 is a schematic diagram of an explosion structure of a storage battery according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a housing according to an embodiment of the present invention.

Description of reference numerals:

10. a battery module;

101. a front side;

102. a left side surface;

11. an electric core;

12. a tab;

13. a connecting portion;

20. a circuit board;

201. positioning holes;

21. an electrically connecting sheet;

22. a connector;

221. a seal ring;

30. a heating plate;

40. a heat conductive sheet;

50. an assembly frame;

51. a first bracket;

511. a base plate;

512. a first side plate;

513. a second side plate;

514. a positioning column;

515. a convex column;

52. a second bracket;

521. a clamping hole;

522. mounting grooves;

53. a third support;

60. a buffer layer;

70. a housing;

71. a cover body;

711. connecting holes;

72. a housing.

Detailed Description

The storage battery in the prior art comprises a plurality of stacked battery cores, a bus bar is arranged at one end of each battery core, the bus bar is welded with the lug of each battery core and the bus bar, and the bus bar is further welded with collection wire harnesses of voltage, current and the like, so that the collection of the voltage and the current of each battery core is realized. However, the bus connection method is complicated in operation, prone to connection errors, and low in reliability.

In view of this, the embodiment of the utility model provides a storage battery, including battery module and circuit board, be provided with a plurality of electric connection pieces on the circuit board, the battery module includes a plurality of electric cores of arranging in proper order, and the utmost point ear of electric core is connected with the electric connection piece electricity that corresponds. Compared with the prior art in which a bus bar is used for connection, the circuit board provided with the electric connection sheet is used for connecting the electric core, the use of parts is reduced, and the improvement of the connection reliability is facilitated.

While various alternative implementations of the present invention will be described with reference to the drawings, it should be understood by those skilled in the art that the following implementations are illustrative only and not exhaustive, and that certain features or certain examples may be substituted, spliced or combined by those skilled in the art based on these implementations, and still be considered as disclosed in the present invention.

Referring to fig. 1 to 4, an embodiment of the present invention provides a battery, which includes a housing 70, a battery module 10, and a circuit board 20. As shown in fig. 4, the housing 70 includes a cover 71 and a case 72, the battery module 10 and the circuit board 20 are located in the case 72 of the housing 70, the cover 71 is used for sealing the case 72, and the cover 71 and the case 72 are hermetically connected so as to prevent the battery module 10 and the circuit board 20 from being contaminated or knocked by the outside.

The circuit board 20 is used for being connected with the battery module 10, is provided with a plurality of electric connection pieces 21 on the circuit board 20, and the battery module 10 includes a plurality of electric cores 11 of arranging in proper order, and the utmost point ear 12 of electric core 11 is connected with the electric connection piece 21 electricity that corresponds to make the external line pass through the circuit board 20 and be connected with the battery module 10, and then gather the voltage and the electric current information of battery module 10. Compared with the related art in which bus bar connection is used, the battery cell 11 is connected using the circuit board 20 provided with the electrical connection sheet 21, which is advantageous for improving reliability.

It should be noted that the circuit board 20 and the electrical connection sheet 21 can be integrally formed, so that the steps of welding the circuit board 20 and the electrical connection sheet 21 in the assembling process are reduced, the assembling difficulty is further reduced, and the reliability is improved. Meanwhile, the circuit board 20 and the electric connection sheet 21 are integrally fed, so that the integration of the circuit board 20 is improved, and the management difficulty of materials is effectively reduced.

Alternatively, referring to fig. 2, in adjacent battery cells 11 of the battery module 10, adjacent and opposite-electric-property tabs 12 are connected together to form a connection portion 13. For example, in the adjacent battery cells 11, the positive electrode tab 12 of the previous battery cell 11 and the negative electrode tab 12 of the next battery cell 11 may form the connection portion 13, specifically, the positive electrode tab 12 of the previous battery cell 11 may be bent toward the next battery cell 11, and meanwhile, the negative electrode tab 12 of the next battery cell 11 is bent toward the previous battery cell 11, and the bent portions of the two electrode tabs 12 are overlapped together to form the connection portion 13. The connection portion 13 may be electrically connected to a corresponding electrical connection sheet 21, that is, the positive electrode tab 12 of the previous battery cell 11 and the negative electrode tab 12 of the next battery cell 11 are electrically connected to the electrical connection sheet 21, so that the adjacent battery cells 11 are connected together in series. It can be seen that, in the present embodiment, the number of the electrical connection sheets 21 should be set correspondingly according to the number of the battery cells 11.

In some other embodiments, in adjacent battery cells 11, the adjacent and same-electrical-property tabs 12 may also be connected together, and then electrically connected with their corresponding electrical connection sheets 21, so as to connect the adjacent battery cells 11 together in parallel.

In a concrete implementation mode, the electric connection sheet 21 can be a nickel sheet, the nickel sheet can be combined with the circuit board 20 through assembly modes such as spot welding and surface mounting, and the assembled electric connection sheet 21 and the tab 12 are made of an integrated material by a supplier, so that the connection strength of the electric connection sheet 21 and the tab 12 is ensured, and the connection reliability of the electric connection sheet 21 and the circuit board 20 can be improved. Of course, the electrical connection sheet 21 may also be a copper sheet, a silver sheet, or other structures, and is not further limited herein.

The embodiment of the utility model provides a storage battery, including shell 70, battery module 10 and circuit board 20, battery module 10 is located shell 70 with circuit board 20, is provided with a plurality of electric connection pieces 21 on the circuit board 20, and battery module 10 includes a plurality of electric core 11 of arranging in proper order, and utmost point ear 12 of electric core 11 is connected with the electric connection piece 21 electricity that corresponds. Compared with the prior art in which bus bar connection is used, the circuit board 20 provided with the electrical connection sheet 21 is used to connect the battery cell 11, which is beneficial to reducing the use of parts and improving the connection reliability.

Further, compared with the bus bar connection in the related art, the tab 12 of the electric core 11 is electrically connected with the corresponding electrical connection sheet 21, which is beneficial to reducing the operation steps of production, improving the production efficiency and reducing the production working cost.

In this embodiment, referring to fig. 3, the storage battery further includes a connector 22, for example, the connector 22 may be electrically connected to the circuit board 20, the connector 22 is configured to be connected to an external circuit, and the external circuit may be connected to the battery cell 11 through the connector 22 and the circuit board 20, so as to acquire voltage and current information of the battery cell 11, or the connector 22 is further configured to be connected to an external controller, and the external controller may be connected to the connector 22 through the connector 22 and the circuit board 20, so as to control an operating state of the battery cell 11.

It should be noted that the connector 22 and the circuit board 20 may be assembled by spot welding, die bonding, etc. and then integrally supplied by a supplier after assembly, which can also improve the connection reliability between the connector 22 and the circuit board 20. Compared with the related art, the connector is used for switching the connector 22 and the circuit board 20, and the connector 22 and the circuit board 20 are integrally supplied, so that the use of parts is reduced, the operation steps of production are reduced, the production efficiency is improved, and the production and working cost is reduced.

In a specific implementation, the connector 22 is disposed on a side of the circuit board 20 facing away from the battery module 10, and the connector 22 is hermetically connected with the cover 71 of the housing 70. For example, a through hole may be provided on the cover 71 for passing a portion of the connector 22 therethrough, and a sealing ring 221 may be provided between the connector 22 and the housing 70, where the sealing ring 221 is disposed around the through hole of the cover 71 to seal the connector 22 and the housing 70, so as to prevent moisture and dust in the external environment from entering into the connector 22, which is beneficial to prolonging the service life of the connector 22. Specifically, the seal ring 221 may be, for example, a rubber seal ring 221. Referring to fig. 4, a plurality of connection holes 711 are formed around the through hole of the cover 71, and a plurality of threaded holes facing the connection holes 711 are formed in the connector 22 and are used for being matched with threaded fasteners such as bolts to detachably connect the connector 22 and the housing 70, so that the housing 70 can be detached from the connector 22, and the connector 22 can be maintained.

In this embodiment, the battery further includes a heating sheet 30 and a heat conduction sheet 40, the heating sheet 30 and the heat conduction sheet 40 are disposed on a side of the circuit board 20 away from the battery module 10, and the heat conduction sheet 40 is sandwiched between the heating sheet 30 and the circuit board 20. In one specific implementation, the heater chip 30 may be a PI heater film, i.e., a polyimide heater chip, which is a heating material composed of a high temperature flame retardant material and a resistive alloy capable of forming a conductive path that generates heat when a current passes through a high resistance conductor. The heat conducting sheet 40 can be a heat conducting silica gel sheet, the heat conducting silica gel sheet is a gap between the heating sheet 30 and the circuit board 20 through filling, heat transfer from the heating sheet 30 to the circuit board 20 is completed, and meanwhile, the silica gel radiating fin can also play the roles of insulation and shock absorption. Of course, the heating sheet 30 and the heat conducting sheet 40 may both use other common structures in the related art, for example, the heating sheet 30 may also be a silica gel heating sheet, an epoxy resin heating sheet, and the like, and the heat conducting sheet 40 may also be a heat conducting graphite sheet, a heat conducting phase change material, and the principle thereof is not described herein again.

When external environment temperature is lower, use heating plate 30 and conducting strip 40 can be to circuit board 20 transmission heat, because circuit board 20 is connected with battery module 10, the heat can transmit to electric core 11 department to the realization is to electric core 11's heating, improves electric core 11's work efficiency.

In this embodiment, a mounting bracket 50 may be further included, the mounting bracket 50 being located in the housing 70, and the battery module 10 being fixed in the mounting bracket 50 so as to mount the fixed battery module 10 into the housing 70. By fixing the battery module 10 in the mounting bracket 50, the smooth installation of the battery module 10 into the housing 70 is facilitated; further, the battery module 10 can be prevented from shaking in the case 70, and the battery module 10 is prevented from being damaged by collision. It should be noted that the battery module 10 includes a plurality of cells 11 arranged in sequence, and the cells 11 in this embodiment may include, for example, a flexible package cell 11 or a square cell 11.

Referring to fig. 1 and 2, the battery module 10 may have a substantially hexahedral structure, the top end of the battery module 10 may be provided with a tab 12, the battery module 10 further includes a bottom surface disposed in the jig 50 and four side surfaces between the bottom surface and the top end, wherein the four side surfaces include a left side surface 102 and a right side surface (not shown) parallel to a width direction of the battery cell 11 (e.g., a first direction in fig. 1), and a front side surface 101 and a rear side surface (not shown) parallel to a length direction of the battery cell 11 (e.g., a second direction in fig. 1); the mounting bracket 50 of the battery module 10 should be disposed accordingly according to the shape of the battery module 10.

In the present embodiment, the jig 50 includes a first bracket 51, a second bracket 52, and a third bracket 53. The first bracket 51 includes a bottom plate 511 and a first side plate 512 and a second side plate 513 which are oppositely disposed, the bottom plate 511 is disposed between the first side plate 512 and the second side plate 513, as shown in fig. 3, the first side plate 512, the bottom plate 511, and the second side plate 513 substantially form a "U" shape structure, wherein the bottom plate 511 abuts against the bottom surface of the battery module 10, the first side plate 512 abuts against the left side surface 102 of the battery module 10, and the second side plate 513 abuts against the right side surface of the battery module 10.

The second bracket 52 is connected to the first side plate 512 and the second side plate 513 at two ends thereof. With reference to fig. 3, the second bracket 52 is a substantially rectangular flat plate, two ends of the second bracket 52 are provided with a plurality of fastening holes 521, and accordingly, one ends of the first side plate 512 and the second side plate 513, which are away from the bottom plate 511, are respectively provided with a plurality of protruding columns 515, the protruding columns 515 are located on the sides of the first side plate 512 and the second side plate 513, and the extending direction of the protruding columns 515 is parallel to the first side plate 512 and the second side plate 513. The protruding column 515 is disposed in the fastening hole 521, so that two ends of the second bracket 52 are respectively fastened to the first side plate 512 and the second side plate 513.

Both ends of the third bracket 53 are connected to the first side plate 512 and the second side plate 513, respectively, and the second bracket 52 and the third bracket 53 are disposed opposite to each other. Similarly, the third bracket 53 is a substantially rectangular flat plate, two ends of the third bracket 53 are provided with a plurality of fastening holes 521, correspondingly, one ends of the first side plate 512 and the second side plate 513, which are away from the bottom plate 511, are respectively provided with a plurality of protruding columns 515, the protruding columns 515 are located on the other side edges of the first side plate 512 and the second side plate 513, and the extending direction of the protruding columns 515 is parallel to the first side plate 512 and the second side plate 513. The protruding column 515 is disposed in the fastening hole 521 in a penetrating manner, so that two ends of the third bracket 53 are respectively connected to the first side plate 512 and the second side plate 513 in a fastening manner.

In some other embodiments, two ends of the second bracket 52 may be further screwed with the first side plate 512 and the second side plate 513 respectively, and/or two ends of the third bracket 53 are screwed with the first side plate 512 and the second side plate 513 respectively.

Of course, in some other embodiments, the mounting bracket 50 may have other configurations. For example, the jig 50 can also be of a box-shaped structure, and the jig 50 and the housing 70 can be connected by using threads, so that the battery module 10 in the jig 50 is prevented from shaking, and further the battery module 10 is prevented from being damaged by collision.

Optionally, the second bracket 52 and/or the third bracket 53 may have a mounting groove 522 on a surface facing away from the battery module 10, and an adhesive layer may be disposed in the mounting groove 522 to adhere the second bracket 52 and/or the third bracket 53 to the housing 72. For example, the mounting groove 522 may be multiple, the extending direction of the mounting groove 522 is the same as the extending direction of the second bracket 52 and/or the third bracket 53, and the mounting groove 522 may be a barb groove, so that when the second bracket 52 and/or the third bracket 53 enters the housing 72, the adhesive layer in the mounting groove 522 is prevented from being squeezed out, and thus, insufficient adhesive strength between the second bracket 52 and/or the third bracket 53 and the housing 72 is prevented.

Optionally, the battery module 10 is further configured to be electrically connected to a circuit board 20, for example, the circuit board 20 is disposed at a top end of the battery module 10, and the circuit board 20 may be electrically connected to the tab 12 of the cell 11 in the battery module 10, so as to collect voltage and current information of the cell 11 in the battery module 10 through the circuit board 20. In this embodiment, the circuit board 20 may be provided with the positioning hole 201, the first side plate 512 and/or the second side plate 513 may be provided with a positioning column 514 directly facing the positioning hole 201, and the positioning column 514 is inserted into the positioning hole 201, so that the circuit board 20 is fixed on the mounting bracket. As shown in fig. 3, one end of the positioning column 514 facing the circuit board 20 has a spherical surface, so that the positioning column 514 is inserted into the positioning hole 201, which is beneficial to improving the positioning accuracy between the circuit board 20 and the mounting frame.

Optionally, the housing 72 may also be provided with positioning pillars 514 that are matched with the positioning holes 201 of the circuit board 20, and the positioning pillars 514 are inserted into the positioning holes 201, so that the circuit board 20 is fixed on the housing 72. Similarly, one end of the positioning column 514 on the housing 72, which faces the circuit board 20, also has a spherical surface, so that the positioning column 514 is inserted into the positioning hole 201, which is beneficial to improving the positioning accuracy between the circuit board 20 and the housing 72.

In this embodiment, the storage battery further includes a buffer layer 60, and the buffer layer 60 may be sandwiched between the housing 70 and the heating sheet 30 to prevent the heating sheet 30 from being damaged by collision; and/or the buffer layer 60 is further sandwiched between the first side plate 512 and the battery module 10, and/or the buffer layer 60 is further sandwiched between the second side plate 513 and the battery module 10, so as to prevent the left side surface 102 and the right side surface of the battery module 10 from being damaged by collision.

In a specific implementation, the buffer layer 60 can be made of buffer foam, i.e., polyethylene foam, which has the advantages of waterproof, moisture-proof, and strong impact resistance, and the use of the buffer foam is also beneficial to further sealing the battery module 10 in the assembly frame 50, thereby prolonging the service life of the battery module 10. Of course, in some other embodiments, cushioning layer 60 may also be a rubber cushion or other structure that can be used to prevent impact.

The embodiment of the utility model provides a still provide an automobile, including foretell battery. The battery includes shell 70, battery module 10 and circuit board 20, and battery module 10 is located shell 70 with circuit board 20, is provided with a plurality of electric connection pieces 21 on the circuit board 20, and battery module 10 includes a plurality of electric cores of arranging in proper order, and the utmost point ear of electric core is connected with the electric connection piece 21 electricity that corresponds. Compared with the bus bar connection in the related art, the battery cell is connected by using the circuit board 20 provided with the electric connection sheet 21, so that the use of parts is reduced, and the connection reliability is improved.

In the description of the embodiments of the present invention, 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", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the embodiments of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrated; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like 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 present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Finally, it should be noted that: the above embodiments and the experimental examples are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (10)

1. The utility model provides a storage battery, its characterized in that, includes shell, battery module and circuit board, the battery module with the circuit board is located in the shell, be provided with a plurality of electricity connection pieces on the circuit board, the battery module includes a plurality of electric cores of arranging in proper order, the utmost point ear of electric core with correspond electricity connection piece electricity is connected.

2. The storage battery of claim 1, wherein adjacent and oppositely-charged tabs in adjacent cells are connected together to form a connecting portion, and the connecting portion is electrically connected to the corresponding electrical connection sheet.

3. The battery of claim 2, wherein said electrical connection tabs are nickel tabs.

4. The battery according to any one of claims 1-3, further comprising a connector, wherein the connector is electrically connected to the circuit board, a seal ring is disposed between the connector and the housing, and the connector is threadedly connected to the housing.

5. The battery according to claim 4, further comprising a heating sheet and a heat-conducting sheet, the heating sheet and the heat-conducting sheet being provided on a side of the circuit board facing away from the battery module, the heat-conducting sheet being sandwiched between the heating sheet and the circuit board.

6. The battery of claim 5, further comprising a mounting bracket, wherein the battery module is fixed in the mounting bracket, and wherein the circuit board is connected to the mounting bracket.

7. The battery of claim 6, wherein the mounting bracket comprises a first bracket, a second bracket and a third bracket, the first bracket comprises a bottom plate and a first side plate and a second side plate which are oppositely arranged, the bottom plate is arranged between the first side plate and the second side plate, two ends of the second bracket are respectively connected with the first side plate and the second side plate, two ends of the third bracket are respectively connected with the first side plate and the second side plate, and the first side plate and the second side plate are oppositely arranged.

8. The storage battery of claim 7, wherein the circuit board is provided with a positioning hole, the first side plate and/or the second side plate is provided with a positioning column facing the positioning hole, the positioning column is inserted into the positioning hole, and one end of the positioning column facing the circuit board is provided with a spherical surface.

9. The storage battery of claim 7, further comprising a buffer layer interposed between the outer case and the heating sheet, and/or the buffer layer is further interposed between the first side plate and the battery module, and/or the buffer layer is further interposed between the second side plate and the battery module.

10. An automobile, characterized in that it comprises a battery as claimed in any one of claims 1 to 9.

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