CN220106814U

CN220106814U - Aluminum row insulating support and battery module

Info

Publication number: CN220106814U
Application number: CN202320680619.6U
Authority: CN
Inventors: 张福增; 白帅; 陈保国; 程岩
Original assignee: Tianjin EV Energies Co Ltd
Current assignee: Tianjin EV Energies Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-11-28
Anticipated expiration: 2033-03-31

Abstract

The utility model belongs to the technical field of batteries, and particularly discloses an aluminum row insulating support, wherein at least two buckling convex parts are arranged on a support body of the support, the at least two buckling convex parts are arranged on the circumference of a connecting aluminum row, the buckling convex parts can be clamped with the edges of the connecting aluminum row, so that a good positioning and fixing effect on the connecting aluminum row is achieved, an avoidance hole is formed in the bottom wall of a mounting groove, the avoidance hole can expose the connecting aluminum row, so that a pole column of the connecting aluminum row and a battery core can be welded conveniently, the connection reliability between the connecting aluminum row and the battery core is guaranteed through the arrangement of the buckling convex parts, the situation of fracture and virtual connection of the connecting aluminum row is avoided, and the service life is long. The utility model also provides a battery module, which comprises the aluminum row insulating bracket, wherein the aluminum row insulating bracket has good compatibility and expansibility and can be suitable for batteries with different sizes.

Description

Aluminum row insulating support and battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to an aluminum row insulating bracket and a battery module.

Background

The battery module generally comprises a plurality of battery cells and a plurality of aluminum rows, wherein the plurality of aluminum rows are respectively connected with the poles of the battery cells, so that the battery cells are connected in series or in parallel to form the module. The aluminum row is usually arranged in the mounting bracket, a plurality of grooves are formed in the mounting bracket, the grooves are formed in one side, deviating from the battery cell, of the aluminum row and used for accommodating the aluminum row, and the aluminum row and the pole of the battery cell are welded, so that the battery module is assembled. The recess that sets up on its installing support only can be used for fixing a position the mounted position of aluminium row, can't fix the aluminium row, after long-time use, the circumstances that the fracture separation appears in the welding point that can appear aluminium row and utmost point post, leads to taking place to virtually even between the electric core, and the reliability of battery module reduces, and life-span shortens.

Therefore, there is a need for an aluminum-exhaust insulating bracket and a battery module to solve the above problems.

Disclosure of Invention

The utility model aims to provide an aluminum row insulating support and a battery module, which can well fix a connecting aluminum row, ensure the connection reliability between the connecting aluminum row and a battery cell, avoid the conditions of fracture and virtual connection and have longer service life.

To achieve the purpose, the utility model adopts the following technical scheme:

in one aspect, the present utility model provides an aluminum row insulating support, comprising:

the support body, the circumference of support body is equipped with the framework, the support body with the framework encloses to establish and forms the accommodation cavity, be equipped with a plurality of baffles on the terminal surface of support body, the both ends of baffle with the framework is connected, the baffle will the accommodation cavity separates and forms a plurality of mounting grooves, every install one in the mounting groove and connect the aluminium row, be equipped with two at least buckle convex parts on the diapire of mounting groove, two at least buckle convex parts set up connect the circumference of aluminium row, buckle convex parts will connect the aluminium row fixedly, the buckle convex part terminal with connect and have clearance a between the aluminium row, the diapire of mounting groove is equipped with dodges the hole, dodge the hole and be used for making connect the aluminium row naked, in order will connect the aluminium row to connect the post of electric core to connect.

Optionally, an exhaust hole is formed in the support body, the exhaust hole corresponds to the position of the explosion-proof valve on the battery cell, and the size of an opening of the exhaust hole is larger than that of the explosion-proof valve.

Optionally, the baffle is last to be equipped with protruding muscle, protruding muscle is followed the length direction of support body extends, one side of protruding muscle with the baffle is connected, the opposite side of protruding muscle is equipped with the direction inclined plane.

Optionally, the baffle is connected with the limiting plate, the limiting plate to the length direction of support body extends, the limiting plate with the buckle convex part can be limited connect the aluminium row along the displacement of the width direction of support body.

Optionally, a positioning hot-melt column is arranged on the partition board, the positioning hot-melt column extends along the thickness direction of the bracket body, and the positioning hot-melt column is used for fixing the flexible circuit board.

Optionally, the support body is last to be equipped with the supporting rib, the supporting rib is followed the thickness direction of support body extends, the terminal of supporting rib with the terminal surface butt of aluminium row.

Optionally, the connection aluminum row includes interconnect's first branch and second branch, the length of first branch is less than the length of second branch, the circumference of mounting groove is equipped with three buckle convex part, wherein two the buckle convex part with first branch joint, another the buckle convex part with second branch joint.

Optionally, a back adhesive is arranged on one side of the support body, which is close to the battery cell, and the back adhesive is adhered to the battery cell.

On the other hand, the utility model provides a battery module, which comprises a plurality of battery cells, a plurality of connecting aluminum rows and an aluminum row insulating support in any scheme, wherein the aluminum row insulating support is connected with the side surface of the battery cells, the connecting aluminum rows are arranged on one side, far away from the battery cells, of the aluminum row insulating support, and the connecting aluminum rows are connected with the poles of the battery cells so as to connect the battery cells in series or in parallel.

Optionally, the battery module comprises a flexible circuit board, and the positioning hot-melt column on the aluminum row insulation support penetrates through the flexible circuit board to fix the flexible circuit board, and the flexible circuit board is welded with the connecting aluminum row.

The beneficial effects of the utility model are as follows:

the utility model provides an aluminum row insulating support, wherein a plurality of partition plates are arranged on the end face of a support body, which is far away from one side of a battery cell, both ends of each partition plate are connected with a frame body, each partition plate separates a containing cavity to form a plurality of mounting grooves, a connecting aluminum row is arranged in each mounting groove, at least two buckling convex parts are arranged on the bottom wall of each mounting groove and are arranged in the circumferential direction of the connecting aluminum row, the buckling convex parts can be clamped with the edges of the connecting aluminum row, so that good positioning and fixing effects on the connecting aluminum row are achieved, and avoidance holes are formed in the bottom wall of each mounting groove, and the connection aluminum row can be exposed by the avoidance holes so as to facilitate welding of the connecting aluminum row and a pole of the battery cell. The connection reliability between the connection aluminum row and the battery cell is guaranteed through the arrangement of the buckle convex parts, the situation that the connection aluminum row is broken and virtually connected is avoided, and the service life is long.

The utility model also provides a battery module, which comprises a plurality of battery cells, a plurality of connection aluminum rows and the aluminum row insulating support, wherein one side of the aluminum row insulating support is connected with the side face of the battery cells, the other side of the aluminum row insulating support is provided with the connection aluminum rows, the connection aluminum rows can be well fixed through the aluminum row insulating support, the connection reliability between the connection aluminum rows and the battery cells is ensured, the situation of fracture and virtual connection is avoided, the service life is long, the side faces of the aluminum row insulating support and the battery cells can be connected through back glue, and the connection aluminum rows and the polar columns of the battery cells are welded and connected, so that the battery cells are connected in series or in parallel, and the aluminum row insulating support has good compatibility and expansibility and can be suitable for batteries with different sizes.

Drawings

Fig. 1 is a schematic structural view of an aluminum busbar insulation support and a connecting aluminum busbar provided in an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a side view of an aluminum row insulating support and a connecting aluminum row provided in an embodiment of the utility model;

FIG. 4 is a cross-sectional view of section B-B of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

fig. 6 is a schematic view of a structure of a battery module provided in an embodiment of the present utility model;

fig. 7 is a side view of a battery module provided in an embodiment of the present utility model;

FIG. 8 is a cross-sectional view of section D-D of FIG. 7;

fig. 9 is a partial enlarged view at E in fig. 8.

In the figure:

100. an aluminum row insulating bracket; 110. a bracket body; 120. a frame; 130. a partition plate; 131. convex ribs; 1311. a guide slope; 132. a limiting plate; 133. positioning a hot melting column; 140. a buckle convex part; 150. avoidance holes; 160. an exhaust hole;

200. connecting an aluminum row; 210. a first subsection; 220. a second subsection;

300. a battery cell; 310. a pole.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the 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.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1-3, the present embodiment provides an aluminum row insulating support 100, where the aluminum row insulating support 100 includes a support body 110 and a frame 120, the frame 120 is disposed in a circumferential direction of the support body 110, and the frame 120 extends to one side of the support body 110, so that a housing chamber for mounting and connecting the aluminum row 200 is enclosed by the support body 110 and the frame 120, and it should be noted that one side of the support body 110 facing away from the housing chamber is used for being connected with a side of the battery 300.

Further, a plurality of baffles 130 are arranged on the end face of one side, far away from the battery cell 300, of the support body 110, two ends of each baffle 130 are connected with the frame 120, the baffles 130 can increase the strength of insulating pieces and reduce the weight of the insulating pieces, the accommodating chambers are separated by the baffles 130 to form a plurality of installation grooves, a connecting aluminum row 200 is arranged in each installation groove, at least two buckling convex parts 140 are arranged on the bottom wall of each installation groove, at least two buckling convex parts 140 are arranged on the circumference of the connecting aluminum row 200, the buckling convex parts 140 can be clamped with the edges of the connecting aluminum row 200, so that good positioning and fixing effects are achieved on the connecting aluminum row 200, the bottom wall of each installation groove is provided with an avoidance hole 150, and the avoidance hole 150 can expose the connecting aluminum row 200 so as to facilitate welding the connecting aluminum row 200 with the pole column 310 of the battery cell 300. The connection reliability between the connection aluminum row 200 and the battery cell 300 is ensured through the arrangement of the buckle convex parts 140, the situation of fracture and virtual connection is avoided, and the service life is long.

More preferably, referring to fig. 4 and 5, a gap a is formed between the end of the fastening protrusion 140 and the end surface of the connection aluminum row 200, and by the arrangement of the gap a, the tolerance of the battery cell 300 along the length direction thereof, or the tiny deformation of the battery cell 300 along the length direction thereof in the use process, namely the length direction of the battery cell 300, namely the X-axis direction shown in fig. 4 and 5, can be absorbed, so that the connection reliability between the connection aluminum row 200 and the battery cell 300 is further ensured, and the situation that the connection aluminum row 200 and the battery cell 300 are broken and virtually connected is avoided.

Optionally, a back adhesive is disposed on a side of the support body 110 near the battery cell 300, and the back adhesive is adhered to a side surface of the battery cell 300 in the length direction. The bracket body 110 and the battery cell 300 can be pre-fixed through the back adhesive, so that the terminal post 310 for connecting the aluminum row 200 and the battery cell 300 is convenient to weld.

Further, with continued reference to fig. 1-3, the support body 110 in this embodiment is provided with the vent hole 160, the position of the vent hole 160 is located at one side of the connection aluminum row 200, and the vent hole 160 corresponds to the position of the explosion-proof valve on the battery cell 300, and the size of the opening of the vent hole 160 is larger than that of the explosion-proof valve, so that the explosion-proof valve of the battery cell 300 can be smoothly opened when thermal runaway occurs, thereby facilitating gas discharge and being beneficial to ensuring the safety of the battery module.

As an alternative, the aluminum connecting bar 200 in this embodiment includes a first section 210 and a second section 220 that are connected to each other, the length of the first section 210 is smaller than that of the second section 220, three fastening protrusions 140 are provided in the circumferential direction of the mounting groove, where two fastening protrusions 140 are respectively fastened to the top and bottom ends of the first section 210, and another fastening protrusion 140 is fastened to the top end of the second section 220.

Wherein, the two sides of the partition 130 in the middle are provided with ribs 131, one side of the frame 120 at the edge is provided with ribs 131, the ribs 131 extend along the length direction of the bracket body 110, one side of each rib 131 is connected with the partition 130 or the frame, the other side of each rib 131 is abutted against the first part 210 or the second part 220 connected with the aluminum row 200, and the ribs 131 can limit the displacement of the aluminum row 200 along the length direction of the bracket body 110, namely the Y-axis direction shown in fig. 1. More preferably, a guiding inclined plane 1311 is further disposed on a side of the protruding rib 131, which is close to the connecting aluminum row 200, and the guiding inclined plane 1311 can play a certain guiding role, so that the connecting aluminum row 200 can be conveniently clamped in smoothly, and further the installation work is completed.

Further, a limiting plate 132 is connected to the partition 130 near the bottom, the limiting plate 132 extends toward the length direction of the bracket body 110, and the end surface of the limiting plate 132 can abut against the edge of the connection aluminum row 200, so that the limiting plate 132 and the two fastening protrusions 140 located at the top of the connection aluminum row 200 can limit the displacement of the limiting plate along the width direction of the bracket body 110, i.e. the Z-axis direction shown in fig. 1.

Optionally, the spacer 130 is further provided with a positioning heat stake 133, and the positioning heat stake 133 extends in the thickness direction of the bracket body 110, that is, in the X-axis direction shown in fig. 1, and a flexible circuit board (not shown) can be fixed by the positioning heat stake 133. Illustratively, the positioning hot-melt column 133 may be threaded on the flexible circuit board, and then the end of the positioning hot-melt column 133 is heated by the hot-melt gun to melt and deform, so that the end of the positioning hot-melt column 133 is cooled to form a button-shaped protrusion, and the protrusion can fix the flexible circuit board in a clamping manner, thereby facilitating welding the connecting aluminum row 200 with the flexible circuit board.

More preferably, the support body 110 is further provided with a supporting rib, the supporting rib extends along the thickness direction of the support body 110, that is, the direction of the X axis shown in fig. 1, and the tail end of the supporting rib is abutted against the end face of the aluminum row, so that the supporting rib can support the bottom end of the second subsection 220 connected with the aluminum row 200, and the flexible circuit board is prevented from being subjected to cold joint when being welded with the connected aluminum row 200, and the connection reliability between the connected aluminum row 200 and the flexible circuit board is ensured.

Further, in this embodiment, the aluminum row insulating bracket 100 is made of an insulating material, and the fastening convex portion 140, the convex rib 131, the limiting plate 132, the positioning hot-melt column 133, the supporting rib, the partition 130, the frame 120, the bracket body 110, and the like are integrally formed. For example, in some embodiments, the aluminum row insulating bracket 100 may be formed by injection molding using plastic, and this processing method is simple, and the formed aluminum row insulating bracket 100 has a high structural strength and is not easy to break.

The present embodiment further provides a battery module, referring to fig. 6-9, which includes a plurality of battery cells 300, a plurality of connection aluminum rows 200, and the aluminum row insulation support 100 in the above-mentioned scheme, wherein the aluminum row insulation support 100 is provided with at least two aluminum row insulation supports, and is respectively provided at two sides of the length direction of the battery cells 300. The aluminum row insulating support 100 is connected with the side of the battery cell 300 on one side, the connecting aluminum row 200 is arranged on the other side, the connecting aluminum row 200 is arranged on one side, far away from the battery cell 300, of the aluminum row insulating support 100, the connecting aluminum row 200 can be well fixed through the aluminum row insulating support 100, the connection reliability between the connecting aluminum row 200 and the battery cell 300 is guaranteed, the situation of fracture and virtual connection is avoided, the service life is long, the side of the aluminum row insulating support 100 and the side of the battery cell 300 can be connected through back glue, the connecting aluminum row 200 and the pole column 310 of the battery cell 300 are connected in a welded mode, and therefore a plurality of battery cells 300 are connected in series or in parallel. In this embodiment, the connection aluminum rows 200 are used to connect the plurality of cells 300 in series, and the plurality of connection aluminum rows 200 sequentially connect the positive electrodes and the negative electrodes of the adjacent cells 300, so that the adjacent cells are connected in series to form a group.

The aluminum row insulating holders 100 of the present embodiment are set to four, and each two aluminum row insulating holders 100 are set on one side of the battery cell 300 after being spliced, so that the aluminum row insulating holders 100 have good compatibility and expansibility, can be suitable for battery modules with different sizes, and have the same setting size, easy processing and manufacturing, and obvious cost advantage.

Of course, in other embodiments, the plurality of cells 300 may be connected in parallel to form a group by the aluminum row 200, and the configuration may be set according to the need, which is not limited in this embodiment.

Further, the battery module further comprises a flexible circuit board, and the positioning hot-melt column 133 on the aluminum row insulation support 100 is arranged on the flexible circuit board in a penetrating mode, so that the flexible circuit board is fixed, the subsequent welding of the flexible circuit board and the connecting aluminum row 200 is facilitated, the assembly process is facilitated, and the operation is convenient.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. An aluminum row insulating bracket, characterized in that the aluminum row insulating bracket (100) comprises:

support body (110), the circumference of support body (110) is equipped with framework (120), support body (110) with framework (120) enclose to establish and form the holding cavity, be equipped with a plurality of baffles (130) on the terminal surface of support body (110), the both ends of baffle (130) with framework (120) are connected, baffle (130) will the holding cavity separates and forms a plurality of mounting grooves, every install one in the mounting groove and connect aluminium row (200), be equipped with two at least buckle protruding portions (140) on the diapire of mounting groove, two at least buckle protruding portions (140) set up the circumference of connecting aluminium row (200), buckle protruding portions (140) will connect aluminium row (200) are fixed, the end of buckle protruding portion (140) with connect and have clearance a between aluminium row (200), the diapire of mounting groove is equipped with dodges hole (150), dodges hole (150) are used for making connect aluminium row (200) are bare in order to connect aluminium row (200) and electric post (310) of electric pole (300).

2. The aluminum busbar insulation support according to claim 1, wherein the support body (110) is provided with an exhaust hole (160), the exhaust hole (160) corresponds to the position of the explosion-proof valve on the battery cell (300), and the size of an opening of the exhaust hole (160) is larger than that of the explosion-proof valve.

3. The aluminum busbar insulation bracket as claimed in claim 1, wherein the partition plate (130) is provided with a protruding rib (131), the protruding rib (131) extends along the length direction of the bracket body (110), one side of the protruding rib (131) is connected with the partition plate (130), and the other side of the protruding rib (131) is provided with a guiding inclined plane (1311).

4. The aluminum busbar insulation bracket according to claim 1, wherein a limiting plate (132) is connected to the separator (130), the limiting plate (132) extends in a length direction of the bracket body (110), and the limiting plate (132) and the fastening protrusion (140) are capable of limiting displacement of the connecting aluminum busbar (200) in a width direction of the bracket body (110).

5. The aluminum busbar insulation bracket according to claim 1, wherein a positioning hot-melt column (133) is provided on the separator (130), the positioning hot-melt column (133) extends along the thickness direction of the bracket body (110), and the positioning hot-melt column (133) is used for fixing a flexible circuit board.

6. The aluminum row insulation support according to claim 1, wherein support ribs are arranged on the support body (110), the support ribs extend in the thickness direction of the support body (110), and the tail ends of the support ribs are abutted with the end face of the aluminum row.

7. The aluminum row insulation bracket according to any of claims 1-6, wherein the connecting aluminum row (200) comprises a first subsection (210) and a second subsection (220) which are connected with each other, the length of the first subsection (210) is smaller than that of the second subsection (220), three buckling protrusions (140) are arranged in the circumference of the mounting groove, wherein two buckling protrusions (140) are clamped with the first subsection (210), and the other buckling protrusion (140) is clamped with the second subsection (220).

8. The aluminum busbar insulation bracket according to any of claims 1-6, wherein a back glue is arranged on one side of the bracket body (110) close to the battery cell (300), and the back glue is bonded with the battery cell (300).

9. A battery module, characterized in that the battery module comprises a plurality of battery cells (300), a plurality of connection aluminum rows (200), and the aluminum row insulation support (100) of any one of claims 1-8, wherein the aluminum row insulation support (100) is connected with the side surface of the battery cells (300), the connection aluminum rows (200) are installed on one side, far away from the battery cells (300), of the aluminum row insulation support (100), and the connection aluminum rows (200) are connected with the poles (310) of the battery cells (300) so as to connect a plurality of battery cells (300) in series or in parallel.

10. The battery module according to claim 9, wherein the battery module comprises a flexible circuit board, and positioning hot-melt posts (133) on the aluminum bar insulating bracket (100) are penetrated on the flexible circuit board to fix the flexible circuit board, and the flexible circuit board is welded with the connecting aluminum bar (200).