CN218731640U - Partition plate assembly and battery module - Google Patents

Abstract

The embodiment of the application discloses division board subassembly and battery module, include: the electric isolation plate comprises a plate body, wherein a limiting part, an installation opening and an installation part are arranged on the plate body, the installation part is positioned in the installation opening, one end of the installation part is connected to the plate body, and the other end of the installation part is connected to the limiting part; the connecting piece is arranged in the mounting opening, connected to the limiting piece and abutted to or arranged at intervals with the mounting part; the limiting piece is matched with the mounting portion and can limit the connecting piece in the mounting opening, so that the connecting piece is fixed on the electric isolation plate. Through seting up installing port and installation department on the plate body at electric spacer plate to set up the locating part on the installation department, locating part cooperation installation department restricts the connection piece in the installing port, makes electric spacer plate just fixed with the connection piece when the shaping, has removed the on-the-spot interim equipment process of electric spacer plate with the connection piece from, has improved production efficiency, reduces the cost of labor.

Description

Partition plate assembly and battery module

Technical Field

The application relates to the technical field of batteries, in particular to an isolation plate assembly and a battery module.

Background

The battery grouping refers to that a plurality of battery monomers or a plurality of battery cells are connected in series and/or in parallel through connecting elements to form a battery pack with larger capacity, the battery pack is placed in a battery box with corresponding size, and an electric isolation plate is added on the battery box to form a battery module in a combined mode. The purpose of adding the electric isolation plate is to facilitate the connection and fixation of a plurality of battery cores into a whole and also facilitate the management of the battery cores.

The electrical isolation board occupies an important position in the battery pack, and provides attachment for FPC (flexible circuit board) and aluminum bar, when the equipment, need fix the aluminum bar to the electrical isolation board earlier, with aluminum bar and electric core utmost point ear welding position again, the process is numerous and diverse, influences production efficiency.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an division board subassembly and battery module, can solve current electric division board and aluminium bar and need assemble the problem that influences production efficiency temporarily at the production site.

The embodiment of the application provides a division board subassembly, includes: the electric isolation plate comprises a plate body, wherein the plate body is provided with a limiting part, an installation opening and an installation part, the installation part is positioned in the installation opening, one end of the installation part is connected to the plate body, and the other end of the installation part is connected to the limiting part; the connecting piece is arranged in the mounting opening, connected to the limiting piece and abutted to or arranged at intervals with the mounting part; the limiting piece is matched with the mounting portion and can limit the connecting piece in the mounting opening, so that the connecting piece is fixed on the electric isolation plate.

Optionally, the plate body has a first surface and a second surface that are arranged oppositely, the mounting opening penetrates through the first surface and the second surface, and the limiting part is convexly arranged on one surface of the mounting part on the same side as the first surface.

Optionally, the electrical isolation plate further includes a frame body, and the frame body is convexly disposed on the second surface; the frame body is followed the periphery of installing port is to the periphery around the installing port to the frame body with inject between the installing port and hold the chamber, the connection piece is located hold in the chamber, the installation department protrusion set up in the inside wall of frame body.

Optionally, the plate body, the limiting part, the mounting part and the frame body are integrally formed through plastic suction.

Optionally, the limiting element includes an inserting portion and a limiting portion, the inserting portion is convexly disposed on a surface of the mounting portion facing the first surface, and the limiting portion is connected to an end of the inserting portion away from the mounting portion; the connecting piece is provided with a through hole, and the connecting piece is sleeved on the insertion part through the through hole and is positioned between the limiting part and the mounting part.

Optionally, the limiting part abuts against one surface of the connecting sheet, which is away from the mounting part; or the spacing part and one surface of the connecting sheet departing from the mounting part are spaced.

Optionally, the number of the installation parts is two, and the installation parts are respectively arranged at two opposite corners of the frame body.

Optionally, a gap is left between the connecting piece and the frame body.

Optionally, the connecting piece is provided with a concave part which is concave towards the direction away from the first surface.

Optionally, a gap is left between the connecting piece and the frame body.

Optionally, the connecting piece is provided with a concave part which is concave towards the direction away from the second surface.

Meanwhile, the embodiment of the application also provides a battery module, which comprises the isolating plate component.

The beneficial effects of this application lie in, provide an isolation board subassembly and have this isolation board subassembly's battery module, electric isolation board in the isolation board subassembly passes through the plastic uptake shaping to through seting up installing port and installation department on electric isolation board's plate body, set up the locating part on the installation department, locating part cooperation installation department limits the connection piece in the installing port, make the connection piece just fixed with electric isolation board when electric isolation board plastic uptake shaping, the on-the-spot interim equipment process of electric isolation board with the connection piece has been removed from, improve on-the-spot production efficiency, reduce the cost of labor, and electric isolation board passes through the plastic uptake shaping, and be integrated as an organic whole with the connection piece in the fashioned, can effectively reduce manufacturing cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a first angle configuration of a separator plate assembly according to an embodiment of the present application;

FIG. 2 is a second angled schematic view of a spacer plate assembly according to an embodiment of the present application;

FIG. 3 is a schematic exploded view of FIG. 1;

FIG. 4 is a schematic structural diagram of an electrical isolation plate and a position limiting member in an isolation plate assembly according to an embodiment of the present disclosure;

FIG. 5 is a bottom view of FIG. 4;

fig. 6 is a schematic structural diagram of a connecting sheet in a separator plate assembly according to an embodiment of the present application.

Description of reference numerals:

100. the insulation board assembly comprises an insulation board assembly 110, an electrical insulation board 111, a board body 111a, a first surface 111b, a second surface 112, a limiting member 1121, an insertion part 1122, a limiting part 113, a mounting opening 114, a mounting part 115, a frame body 116, a containing cavity 120, a connecting piece 121, a through hole 122 and a recessed part.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

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 present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; 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 application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

In the embodiments, the term "parallel" means that the angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is in a range of-10 ° to 10 °. The term "perpendicular" means a state in which an angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is 80 ° to 100 °. The equal distance refers to the state that the tolerance range is-10%.

The embodiment of the application provides an isolation board assembly and have battery module of this isolation board assembly, electrical isolation board in the isolation board assembly passes through the plastic uptake shaping to through seting up installing port and installation department on electrical isolation board's plate body, set up the locating part on the installation department, locating part cooperation installation department limits the connection piece in the installing port, make electrical isolation board just fixed with the connection piece when the shaping, the on-the-spot interim equipment process of electrical isolation board and connection piece has been removed from, improve on-the-spot production efficiency, reduce the cost of labor, and electrical isolation board passes through the plastic uptake shaping, can effectively reduce manufacturing cost. As a typical application, a battery module including the separator assembly may be used to supply power to electric devices such as electric vehicles.

In an embodiment of the present application, referring to fig. 1 to 6, there is provided a separator assembly 100, where the separator assembly 100 includes: an electrical isolation plate 110 and a connecting tab 120. The electrical isolation board 110 includes a board body 111, the board body 111 has a first surface 111a and a second surface 111b that are disposed opposite to each other along a thickness direction of the board body 111, the board body 111 is provided with a limiting member 112, an installation opening 113 and an installation portion 114, the installation portion 114 is located in the installation opening 113, one end of the installation portion is connected to the board body 111, the other end of the installation portion is connected to the limiting member 112, and the installation opening 113 penetrates through the first surface 111a and the second surface 111b along the thickness direction of the board body 111. The connecting sheet 120 is mounted in the mounting opening 113, and the limiting member 112 is matched with the mounting portion 114 to limit the connecting sheet 120 in the mounting opening 113, so that the connecting sheet 120 is fixed with the electrical isolation plate 110 when the electrical isolation plate 110 is molded, the assembling process of the electrical isolation plate 110 and the connecting sheet 120 is omitted, and the production efficiency of the battery module is improved.

In addition, referring to fig. 2 to 5, in one implementation, a part of the mounting portion 114 is disposed on the plate body 111 located outside the mounting opening 113, and a part of the mounting portion 114 extends into the mounting opening 113, in another implementation, the mounting portion 114 may be entirely located in the mounting opening 113, that is, an orthogonal projection of the mounting portion 114 on the first surface 111a falls within the mounting opening 113, one end of the mounting portion 114 is connected to an inner wall of the mounting opening 113, the mounting portion 114 is shaped as a plate body, the mounting portion 114 is parallel to the first surface 111a, and the limiting member 112 is disposed in a protruding manner on a same side of the mounting portion 114 as the first surface 111 a.

In addition, referring to fig. 3 to 5, the electrical isolation board 110 further includes a frame 115, the frame 115 is convexly disposed on the second surface 111b of the board body 111, the frame 115 surrounds the mounting opening 113 along an outer circumferential direction of the mounting opening 113, a receiving cavity 116 for receiving the connecting sheet 120 is defined between the frame 115 and the mounting opening 113, the limiting member 112 is convexly disposed on a surface of the mounting portion 114 facing the first surface 111a, the connecting sheet 120 is disposed in the receiving cavity 116, the mounting portion 114 is convexly disposed on an inner sidewall of the frame 115, the mounting portion 114 forms a support for the connecting sheet 120, the limiting member 112 limits the connecting sheet 120 in the receiving cavity 116, and the connecting sheet 120 is prevented from being separated from the electrical isolation board 110, so that the connecting sheet 120 is fixed to the electrical isolation board 110 when the electrical isolation board 110 is molded.

The frame body 115 has a first end and a second end which are oppositely arranged along the thickness direction of the plate body 111, the first end is on the same side as the second surface 111b of the plate body 111, the mounting portion 114 is convexly arranged at the second end of the frame body 115, and the connecting sheet 120 deviates from the mounting portion 114 in the thickness direction of the plate body 111 and is not higher than the first surface 111a of the plate body 111, so that the connecting sheet 120 is prevented from exceeding the first surface 111a to influence the installation of the electrical isolation board 110.

The electrical isolation board 110 is integrally formed by plastic suction, that is, the board body 111, the limiting member 112, the mounting portion 114 and the frame body 115 are integrally formed by plastic suction, and in the plastic suction forming process, the connecting piece 120 is fixed to the electrical isolation board 110 by the action of the limiting member 112. The plastic suction is to heat and soften a flat plastic hard sheet, to be adsorbed on the surface of a mold by vacuum, to be formed after cooling, specifically, when the electrical isolation plate 110 is manufactured, the flat plastic hard sheet is placed in a plastic suction mold cavity of the plastic suction mold, after the plastic hard sheet is heated and softened, the vacuum adsorption is adopted, to vacuum adsorb the softened plastic hard sheet on the inner side wall of the plastic suction mold cavity, to be formed after cooling, to obtain the electrical isolation plate 110 comprising a plate body 111, a limiting part 112, a mounting part 114 and a frame body 115, and to place the connecting sheet 120 and the plastic hard sheet into the mold cavity of the mold together, as the plastic hard sheet forms the formed electrical isolation plate 110 through plastic suction, the connecting sheet 120 can be assembled with the limiting part 112 in the plastic suction mold cavity under the action of vacuum adsorption, so as to be fixed with the electrical isolation plate 110 when the electrical isolation plate 110 is formed. The thickness of the board body 111 in the electrical isolation board 110 is preferably 0.3-1 mm, the whole thickness of the board body 111 is small, and the production cost can be effectively reduced without using too much production materials. The thickness of the plate body 111 in this embodiment is 0.5mm.

The traditional electric isolation plate is manufactured by injection molding, the electric isolation plate is obtained by injection molding in an injection mold cavity after an upper mold and a lower mold are assembled in the injection molding process, a connecting sheet cannot be placed in the injection mold cavity of the injection mold in the injection molding process, and the electric isolation plate and the connecting sheet need to be assembled after the electric isolation plate is molded.

When the connecting sheet 120 is placed in the suction cavity of the suction mold, the portion of the suction cavity of the suction mold corresponding to the mounting portion 114 supports the connecting sheet 120 in the suction cavity, and a gap is left between the connecting sheet 120 and the inner side wall of the frame body 115. In this embodiment, the number of the mounting portions 114 is two, and the mounting portions are respectively protruded from a pair of opposite corners of the frame body 115 and arranged at the opposite corners of the frame body 115, so that the stable support of the connecting sheet 120 can be ensured, the space of the accommodating cavity 116 is occupied as little as possible, and the space utilization rate is improved. In other embodiments, the number of the mounting portions 114 may be three or four, and the mounting portions are respectively provided at different corners of the frame 115. In addition, the mounting portion 114 may be protruded from two inner sidewalls of the frame 115 opposite to each other in the width direction, or the mounting portion 114 may be protruded from two opposite inner sidewalls of the frame 115 opposite to each other in the length direction, or the mounting portion 114 may be protruded from the inner sidewalls of the frame 115 in the inner circumferential direction of the frame 115, and may be selected according to actual use conditions.

In addition, referring to fig. 1 and fig. 3 to fig. 5, in an implementation manner of the present embodiment, the limiting member 112 includes an insertion part 1121 and a limiting part 1122, the insertion part 1121 is disposed in a protruding manner on a surface of the mounting portion 114 on the same side as the first surface 111a, and the limiting part 1122 is connected to one end of the insertion part 1121 away from the mounting portion 114. Correspondingly, a through hole 121 matched with the insertion part 1121 is formed in the connecting piece 120, the connecting piece 120 is sleeved on the insertion part 1121 through the through hole 121, and the connecting piece 120 is located between the limiting part 1122 and the mounting part 114. Moreover, the area of the orthographic projection of the through hole 121 on the first surface 111a is smaller than the area of the orthographic projection of the limiting portion 1122 on the first surface 111a, so that the limiting portion 1122 limits the connecting piece 120 sleeved on the inserting portion 1121, and the connecting piece 120 is prevented from separating from the inserting portion 1121. The connecting piece 120 is positioned in the accommodating cavity 116 through the insertion part 1121, the insertion part 1121 is matched with the limiting part 1122 to fix the connecting piece 120 on the mounting part 114, and a structure for forming the limiting part 112 is arranged in a mold cavity of the plastic suction mold.

Specifically, the connecting sheet 120 and the hard plastic sheet forming the electrical isolation plate 110 are stacked and disposed in a plastic suction mold cavity, during plastic suction, the hard plastic sheet gradually forms the structure of the electrical isolation plate 110 as described above, the connecting sheet 120 is sleeved on the limiting member 112 formed by plastic suction through the through hole 121 due to vacuum adsorption, the limiting member 112 limits the connecting sheet 120 in the plastic suction mold cavity to form the positioning of the connecting sheet 120 in the plastic suction mold cavity, so that when the electrical isolation plate 110 is formed by plastic suction, the connecting sheet 120 is positioned and mounted in the accommodating cavity 116 through the insertion portion 1121 to ensure the stability of integration of the connecting sheet 120 and the electrical isolation plate 110, the limiting portion 1122 forms the limiting of the connecting sheet 120 to prevent the connecting sheet 120 from separating from the electrical isolation plate 110 due to shaking, the insertion portion 1121 is matched with the limiting portion 1122 to limit the connecting sheet 120 in the plastic suction mold cavity, so that the electrical isolation plate 110 is limited in the accommodating cavity 116 during molding.

The inserting portion 1121 and the limiting portion 1122 are integrally formed, and the limiting portion 1122 abuts against a surface of the connecting piece 120 away from the mounting portion 114 through plastic suction, so that the connecting piece 120 and the mounting portion 114 are tightly attached to each other. In other implementations, the spacing portion 1122 is spaced apart from a surface of the connecting piece 120 away from the mounting portion 114, so as to reserve a moving space for the connecting piece 120, thereby facilitating subsequent disassembly and maintenance of the connecting piece 120.

In addition, referring to fig. 1, 3 and 6, the connecting piece 120 is provided with a recessed portion 122, the recessed portion 122 is recessed in a direction away from the first surface 111a, and the two through holes 121 are respectively located at two ends of the recessed portion 122, which are opposite to each other along the length direction of the connecting piece 120, and are provided corresponding to the limiting member 112. Depressed part 122's effect is the buffering, division board subassembly 100 when arranging in the battery module, electric core in the electric core group takes place chemical reaction and produces great heat at the circulation in-process, lead to electric core inflation, the distance between electric core and the electric core can increase, if connection piece 120 is straight, because connection piece 120 is connected with the utmost point ear of electric core, the bulging force of electric core can drag connection piece 120 body and lead to connection piece 120 crackle or even fracture to appear, and the setting of depressed part 122, make connection piece 120 have the extension surplus, avoid leading to connection piece 120 impaired because of electric core inflation.

In practical applications, the number of the mounting holes 113 on the electrical isolation plate 110 is plural, one connecting sheet 120 is mounted in each mounting hole 113, the connecting sheet 120 may be a copper connecting sheet (i.e., a copper bar) or an aluminum connecting sheet (i.e., an aluminum bar), and the connecting sheet 120 is used to be electrically connected to a tab of an electric core in the battery module, or the connecting sheet 120 is used to be electrically connected to an electric pole of a single battery, so as to implement series connection and/or parallel connection between a plurality of single electric cores in the electric core set.

In addition, a flexible circuit board (not shown) is disposed on the second surface 111b of the board body 111 of the electrical isolation board 110, and the flexible circuit board is electrically connected to the connection pad 120.

Simultaneously, this embodiment still provides a battery module, battery module includes the box, and the box is equipped with the opening, is equipped with electric core group in the box, and electric core group arranges in proper order by a plurality of electric cores and forms, and electrical isolation board 110 sets up in electric core group's top, and connection piece 120 is connected with the utmost point post electricity on the electric core in the electric core group to realize establishing ties and/or parallelly connected between a plurality of electric cores.

When the battery module is assembled, as described above, the number of the connecting tabs 120 on the electrical isolation plate 110 is large, and if the electrical isolation plate 110 is formed by injection molding, the electrical isolation plate 110 and the connecting tabs 120 need to be temporarily assembled on site, that is, each connecting tab 120 is installed in the installation opening 113 of the electrical isolation plate 110, and a large amount of time and labor costs are required to be consumed for the assembly process of the electrical isolation plate 110 and the connecting tabs 120. By using the isolation board assembly 100 provided by the embodiment, the electrical isolation board 110 and the connecting sheet 120 which are fixed together can be directly installed at the top of the electric core assembly, and then the flexible circuit board is electrically connected with the connecting sheet 120, so that the electrical isolation board 110 and the connecting sheet 120 do not need to be temporarily assembled on site, the assembly efficiency of the battery module is obviously improved, and the time cost and the labor cost are saved.

The above detailed description is made on the separator assembly and the battery module provided in the embodiments of the present application, and specific examples are applied herein to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A separator plate assembly, comprising:

the electric isolation plate (110), the electric isolation plate (110) comprises a plate body (111), the plate body (111) is provided with a limiting part (112), an installation opening (113) and an installation part (114), the installation part (114) is located in the installation opening (113), one end of the installation part is connected to the plate body (111), and the other end of the installation part is connected to the limiting part (112); and

a connecting piece (120) which is arranged in the mounting opening (113), is connected to the limiting piece (112), and is abutted against or arranged at an interval with the mounting part (114);

the limiting piece (112) is matched with the mounting portion (114) to limit the connecting piece (120) in the mounting opening (113) so as to fix the connecting piece (120) to the electric isolation plate (110).

2. The separator plate assembly according to claim 1, wherein the plate body (111) has a first surface (111 a) and a second surface (111 b) opposite to each other, the mounting opening (113) extends through the first surface (111 a) and the second surface (111 b), and the stopper (112) is protruded from a surface of the mounting portion (114) on the same side as the first surface (111 a).

3. The insulation board assembly according to claim 2, wherein the electrical insulation board (110) further comprises a frame body (115), wherein the frame body (115) is convexly disposed on the second surface (111 b); the frame body (115) surrounds the installation opening (113) along the periphery of the installation opening (113) so as to define an accommodating cavity (116) between the frame body (115) and the installation opening (113), the connecting sheet (120) is arranged in the accommodating cavity (116), and the installation part (114) is arranged on the inner side wall of the frame body (115) in a protruding mode.

4. The bulkhead assembly of claim 3, wherein the plate body (111), the retainer (112), the mounting portion (114), and the frame body (115) are integrally formed by plastic suction.

5. The partition board assembly according to claim 2, wherein the limiting member (112) includes a plug portion (1121) and a limiting portion (1122), the plug portion (1121) is disposed in a protruding manner on a side of the mounting portion (114) opposite to the first surface (111 a), and the limiting portion (1122) is connected to an end of the plug portion (1121) away from the mounting portion (114);

the connecting piece (120) is provided with a through hole (121), and the connecting piece (120) is sleeved on the inserting part (1121) through the through hole (121) and is positioned between the limiting part (1122) and the mounting part (114).

6. The separator plate assembly according to claim 5, wherein the retainer (1122) abuts a face of the connecting tab (120) facing away from the mounting portion (114);

or the limiting part (1122) and one surface of the connecting sheet (120) departing from the mounting part (114) are separated by a distance.

7. The separator plate assembly according to claim 4, wherein the number of the mounting portions (114) is two, respectively arranged at two opposite corners of the frame body (115).

8. The separator plate assembly of claim 3, wherein a gap is provided between said connecting tab (120) and said frame (115).

9. Separator plate assembly according to claim 8, characterized in that the connecting piece (120) is provided with a recess (122) which is concave in a direction away from the first surface (111 a).

10. A battery module comprising the separator assembly according to any one of claims 1 to 9.

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