CN217387463U

CN217387463U - Protection module, electric core subassembly and vehicle

Info

Publication number: CN217387463U
Application number: CN202221364118.9U
Authority: CN
Inventors: 钟文彬; 赵志峰; 任向飞; 张军辉; 唐辉
Original assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Automobile Research and Development Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Automobile Research and Development Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-06
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses a protection module, electric core subassembly and vehicle, this protection module includes insulating housing and partition part, one side of said insulating housing is equipped with the spread groove, said spread groove includes the bottom wall towards the notch, the end wall connected with the bottom wall, and both side walls; the one end of partition is located the end wall, the other end is along keeping away from the direction of end wall extends, partition separates out first spread groove between rather than one of them lateral wall, and separates out the second spread groove between another lateral wall, with separate out the third spread groove between the diapire, first spread groove the third spread groove with the second spread groove communicates in proper order, and first spread groove is used for supplying an electric core utmost point ear to stretch into, and the second spread groove is used for supplying another electric core utmost point ear to stretch into, and the third spread groove is used for supplying electrically conductive connecting piece to place, two electric core utmost point ear is connected through electrically conductive connecting piece looks electricity. The utility model discloses technical scheme can promote electric core compactness and arrange when the base, to the protection effect of electric core utmost point ear.

Description

Protection module, electric core subassembly and vehicle

Technical Field

The utility model relates to a battery technology field, in particular to protection module, electric core subassembly and vehicle.

Background

With the continuous improvement of the requirements of new energy vehicles on the endurance mileage and the safety, the requirements on the arrangement of the battery cells and the energy density are higher and higher. When compact electric core was arranged on the market at present, electric core and electric core were connected through utmost point ear or electrically conductive, and utmost point ear is softer and do not have fixedly arranging the position, needs extra protective structure to can't fix a position completely.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a protection module aims at promoting the insulation protection effect to electric core utmost point ear.

In order to achieve the above object, the utility model provides a protection module for the electric core utmost point ear that the protection is connected, include:

the connecting groove comprises a bottom wall facing the notch, an end wall connected with the bottom wall and two side walls; and

partition portion, the one end of partition portion is located the end wall, the other end is along keeping away from the direction of end wall extends, partition portion separates first spread groove from between rather than one of them lateral wall, and separates the second spread groove from between another lateral wall, with separate the third spread groove from between the diapire, first spread groove the third spread groove with the second spread groove communicates in proper order, and first spread groove is used for supplying an electric core utmost point ear to stretch into, and the second spread groove is used for supplying another electric core utmost point ear to stretch into, and the third spread groove is used for supplying electrically conductive connecting piece to place, two electric core utmost point ear is connected through electrically conductive connecting piece looks electricity.

Optionally, the bottom wall corresponds the first connecting groove still is equipped with the first groove of dodging, the bottom wall corresponds the second connecting groove still is equipped with the second and dodges the groove.

Optionally, the notches of the first connecting groove and the second connecting groove are arranged in a gradually expanding manner outwards along the notch direction; and/or the separating part is provided with a positioning hole which is arranged on the end surface of the free end of the separating part for a fastening piece to penetrate.

Optionally, a side of the connecting groove opposite to the end wall is open.

Optionally, a step is formed at an opening end of the connecting groove, and a pressure relief area is arranged on the step and is used for relieving pressure when the pressure reaches a preset threshold value.

Optionally, the pressure relief area is a pressure relief groove, and the pressure relief groove is recessed to a preset depth along the thickness direction of the insulating shell, so that when a preset pressure threshold is reached, the bottom wall of the pressure relief groove can be broken to perform pressure relief.

Optionally, the opposite sides of the insulating casing are provided with fixing portions, and the fixing portions are used for fixing the insulating casing and a partition plate of the battery cell module.

Optionally, the fixing portion is provided as a fixing groove extending in a length direction of the insulating case.

Optionally, the protection module is integrally formed by injection molding or machining.

The utility model also provides an electricity core subassembly, include a plurality of monomer electric cores, and as above protection module, a plurality of monomer electric cores are the series-parallel connection mutually, protection module is used for the protection the utmost point ear that a plurality of monomer electric cores are connected.

The utility model discloses still provide a vehicle, include as above the battery pack assembly.

According to the technical scheme of the utility model, the insulating shell and the separating part are adopted, one side of the insulating shell is provided with the connecting groove, and the connecting groove comprises a bottom wall facing the notch, an end wall connected with the bottom wall and two side walls; the one end of partition portion is located the end wall, the other end is along keeping away from the direction of end wall extends, partition portion separates first spread groove between rather than one of them lateral wall, and separates the second spread groove between another lateral wall, and separate the third spread groove between the diapire, first spread groove ear stretches into, and the second spread groove is used for supplying another electric core utmost point ear to stretch into, and the third spread groove is used for supplying electrically conductive connecting piece to place, two electric core utmost point ear is connected through electrically conductive connecting piece looks electricity. The utility model discloses the scheme can play the protection to the electric core utmost point ear that is connected, promotes utmost point ear safeguard function, installation and location convenience.

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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the protection module of the present invention;

FIG. 2 is a schematic view of the protection module of FIG. 1 from another perspective;

fig. 3 is a schematic back view of the protection module in fig. 1;

fig. 4 is the utility model discloses protection module installation electric core utmost point ear's structural schematic diagram.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Protection module	13	End wall
1	Insulating shell	14	Side wall
				11	Connecting groove	15	Pressure relief area
111	First connecting groove	16	Fixing groove
				112	Second connecting groove	2	Partition part
113	Third connecting groove	21	Locating hole
				114	First avoiding groove	20	Battery cell
115	Second avoiding groove	30	Battery core tab
				12	Bottom wall	40	Conductive connecting piece

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application related to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated are implicitly being indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Therefore, the utility model provides a protection module. The protection module is used for protecting the connected battery cell tabs.

Referring to fig. 1 to 4, in the embodiment of the present invention, the protection module 10 includes an insulating housing 1 and a partition 2, one side of the insulating housing 1 is provided with a connecting groove 11, and the connecting groove 11 includes a bottom wall 12 facing the notch, an end wall 13 connected to the bottom wall 12, and two side walls 14; one end of the partition part 2 is located the end wall 13, the other end is along keeping away from the direction of end wall 13 extends, partition part 2 and one of them lateral wall 14 between the interval go out first connecting groove 111, and another lateral wall 14 between the interval go out second connecting groove 112, with between diapire 12 between the interval go out third connecting groove 113, first connecting groove 111 third connecting groove 113 with second connecting groove 112 communicates in proper order, and first connecting groove 111 is used for supplying a battery core utmost point ear 30 to stretch into, and second connecting groove 112 is used for supplying another battery core utmost point ear 30 to stretch into, and third connecting groove 113 is used for supplying electrically conductive connecting piece 40 to put, two battery core utmost point ear 30 is connected through electrically conductive connecting piece 40 electricity mutually.

One battery cell tab 30 is connected with the other battery cell tab 30 through a conductive connecting piece 40, for example, through-connection copper bar connection, the connected battery cell tabs 30 are soft and not supported, and the product quality cannot be effectively ensured.

Referring to fig. 1 to 4, in an embodiment, the insulating housing 1 is square, and the insulating housing 1 may have other shapes to fit the accommodating base of the battery cell 20. One side of reason casing is equipped with connecting groove 11, and the intermediate position of insulating casing 1 is located to connecting groove 11, and connecting groove 11 extends along the length direction downwardly opening of insulating casing 1, and the shape of partition portion 2 does not do the injecion, can be square, bar, cylindricality etc. and the distribution portion separates the space formation of connecting groove 11 communicates in proper order first connecting groove 111 third connecting groove 113 with second connecting groove 112.

In other embodiments, the casing may have other shapes, the connecting groove 11 is not provided with an opening, and the partition portion 2 is spaced from the other end wall 13 of the connecting groove 11 to facilitate the insertion of the cell tab 30 and the conductive connecting member 40.

According to the technical scheme of the utility model, the insulating shell 1 and the separating part 2 are adopted, one side of the insulating shell 1 is provided with the connecting groove 11, and the connecting groove 11 comprises a bottom wall 12 facing the notch, an end wall 13 connected with the bottom wall 12 and two side walls 14; one end of the partition part 2 is arranged on the end wall 13, the other end extends along the direction far away from the end wall 13, a first connecting groove 111 is arranged between the partition part 2 and one of the side walls 14 at an interval, a second connecting groove 112 is arranged between the partition part 2 and the other side wall 14 at an interval, a third connecting groove 113 is arranged between the bottom wall 12 at an interval, the first connecting groove 111 is inserted, the second connecting groove 112 is used for inserting another cell tab 30, the third connecting groove 113 is used for placing a conductive connecting piece 40, and the cell tabs 30 are electrically connected with each other through the conductive connecting piece 40. The utility model discloses the scheme can play the protection to the electric core utmost point ear 30 that is connected, promotes utmost point ear safeguard function, installation and location convenience.

In one embodiment, the cell assembly is formed by connecting a plurality of single cells 20 in series and parallel, and is disposed in a receiving space of a base; the protection module 10 may be placed in a base, and the tabs of the adjacent battery cells 20 are respectively placed in the first connecting groove 111 and the second connecting groove 112, and are connected through the conductive connecting member 40, such as a switching copper bar, which is placed in the third connecting groove 113. Specifically, two adjacent tabs are connected through the connecting piece, the protection module 10 is integrally arranged in the protection module, the protection module 10 is fixedly connected with the base, the connected tabs are positioned and fixed, and the tabs are prevented from shaking and loosening easily to cause connection failure.

Referring to fig. 1 and 4, further, in order to avoid the connection between the battery cell tab 30 and the adapting copper bar, the connection structure of the battery cell tab 30 is prevented from being affected. The bottom wall 12 is further provided with a first avoiding groove 114 corresponding to the first connecting groove 111, and the bottom wall 12 is further provided with a second avoiding groove 115 corresponding to the second connecting groove 112.

The first groove 114 and the second groove 115 of dodging are the recessed formation in the same phase of diapire 12 of spread groove 11, and the first groove 114 and the second groove 115 of dodging extend along the length direction of spread groove 11, and the first groove 114 and the second groove 115 of dodging make things convenient for the tip of electric core utmost point ear 30 and switching copper bar junction to stretch into, avoid producing the influence to connection structure.

Referring to fig. 2 in combination, in order to facilitate the installation of the cell tab 30, the connecting groove 11 is open on the side opposite to the end wall 13. In this scheme, the battery core tab 30 connected through the switching copper bar can pass through the opening and be arranged in the connecting groove 11, and the installation is convenient and quick.

To facilitate the connection of the cell tabs 30. The notches of the first connecting groove 111 and the second connecting groove 112 are arranged to be gradually enlarged outward in the notch direction.

In this embodiment, both sides wall 14 of coupling groove 11 sets up along the direction of keeping away from diapire 12 gradually expanding, and partition 2 is close to the one end of notch, and both sides set up along the equidirectional convergent to make the notch of first coupling groove 111 and the notch of second coupling groove 112 be the flaring setting, make things convenient for going deep into in first coupling groove 111 and the second coupling groove 112 of electric core utmost point ear 30.

Referring to fig. 4, in order to facilitate the fixing of the protection module 10, the partition 2 is provided with a positioning hole 21, and the positioning hole 21 is provided at an end of a free end of the partition 2 for a fastening member to pass through. When the protection module 10 is placed on the base, the fastener can pass through the positioning hole 21 to fix the protection module 10 on the base, so as to prevent the protection module 10 from moving. In an embodiment, the positioning hole 21 is disposed in a gradually expanding manner in the extending direction of the partition portion 2, and penetrates through the partition portion 2, so as to ensure the stability of connection.

Referring to fig. 1, 2 and 4, in order to fix the protection module 10, fixing portions for fixing the insulation housing 1 and side plates of the base are disposed at opposite sides of the insulation housing 1. The fixing portion may be used to fix the protection module 10 to a side plate of the base, and the battery cell 20 is installed in the accommodating space formed by the two side plates. In this embodiment, the fixing portion is a fixing groove 16, the fixing groove 16 extends along the length direction of the insulating housing 1, and the fixing groove 16 is used for being clamped on a rib of a side plate of the base to fix the protection module 10. In other embodiments, the fixing portion may have other structures, such as a mounting hole, a positioning protrusion, and the like.

Referring to fig. 2 and 3, in order to reduce the pressure when the battery cell 20 leaks, a safety accident is avoided. A step is formed between the opening end of the connecting groove 11 and the outer surface of the insulating shell 1, a pressure relief area 15 is arranged on the step surface of the insulating shell 1, and the pressure relief area 15 is relieved when the pressure reaches a preset threshold value.

In the present embodiment, the pressure relief area 15 is a pressure relief groove recessed to a predetermined depth along the thickness direction of the insulating housing 1, so that when a predetermined pressure threshold is reached, the bottom wall 12 of the pressure relief groove can be broken for pressure relief. When the cell 20 disposed in the housing space of the base leaks, the bottom wall 12 of the pressure relief groove of the insulating housing 1 is weakened, and the gas pressure breaks the weakened pressure relief groove wall, so that the cell is discharged from the pressure relief area 15.

In another embodiment the pressure relief area 15 may be provided as a pressure relief opening and a cover film is provided at the pressure relief opening, which cover film is burst when the pressure reaches a certain threshold value, whereby the pressure will be reduced.

In a further embodiment, the pressure relief area 15 may also be provided with a pressure relief valve, by means of which the pressure is regulated.

The protection module 10 is manufactured in an integral manner, and the material includes, but is not limited to, an insulating material such as plastic.

In the present embodiment, the protection module 10 is formed by injection molding.

In other embodiments, the protection module 10 is manufactured by machining.

The utility model also provides an electric core subassembly, this electric core subassembly include a plurality of monomer electricity core 20, and protection module 10, and this protection module 10's concrete structure refers to above-mentioned embodiment, because the electric core subassembly has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, no longer gives unnecessary details one by one here. The plurality of battery cells 20 are connected in series and in parallel, and the protection module 10 is configured to protect tabs connected to the plurality of battery cells 20.

In an embodiment, the cell assembly is disposed in a base, the base includes a plurality of receiving spaces arranged at intervals, the cell assembly includes a plurality of cell 20 connected in series and parallel, if two cell 20 are connected in parallel to form a sub-cell group, the plurality of sub-cell groups are connected in series, the sub-cell groups and the sub-cell groups in adjacent receiving spaces are connected through a conducting bar, the protection module 10 serves as a baffle on the side of the base, and is sealed with the cover plate of the base in a matching manner, the pressure of one receiving space can be controlled by the pressure release region 15, if leakage occurs, the pressure of the receiving space flows out through the pressure release region 15 of the protection module 10, so as to avoid interference with the cell 20 of other receiving spaces.

And then the electric core assembly is arranged in a universal shell, and a battery management system and a thermal management system are arranged to form a power battery which is finally used as the energy source of the vehicle.

The utility model discloses still provide a vehicle, include as above the battery pack.

The electric core subassembly is installed after the power battery is constituteed to the protective housing, installs on the vehicle, as the energy of vehicle, and the structural design of electric core subassembly mainly considers vehicle battery's maintenance and maintenance, need not to form electric core module, promotes space utilization, and weight reduction promotes the energy density of battery totality. The safety and the stability of the vehicle are ensured.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A protection module for protecting a connected cell tab, comprising:

2. The protection module of claim 1, wherein the bottom wall is further provided with a first avoiding groove corresponding to the first connecting groove, and the bottom wall is further provided with a second avoiding groove corresponding to the second connecting groove.

3. The protection module of claim 1, wherein the notch of the first connection slot and the notch of the second connection slot are outwardly tapered in a direction of the notches; and/or the separating part is provided with a positioning hole which is arranged on the end surface of the free end of the separating part for a fastening piece to penetrate.

4. The protection module of claim 1, wherein the side of the connecting slot opposite the end wall is open.

5. The protection module of claim 4, wherein the open end of the connecting groove is formed with a step, and the step is provided with a pressure relief area which is relieved when the pressure reaches a preset threshold value.

6. The protection module according to claim 5, wherein the pressure relief area is provided as a pressure relief groove recessed to a predetermined depth in a thickness direction of the insulating case so that a bottom wall of the pressure relief groove is ruptured to perform pressure relief when a predetermined pressure threshold is reached.

7. The protection module of claim 1, wherein the insulating housing is provided with fixing portions at opposite sides thereof, and the fixing portions are used for fixing the insulating housing to the partition plate of the cell module.

8. The protection module of claim 7, wherein the fixing portion is provided as a fixing groove extending in a length direction of the insulating case.

9. The protection module according to any one of claims 1 to 8, wherein the protection module is injection-molded in one piece or machined in one piece.

10. An electric core assembly, characterized in that, comprises a plurality of single electric cores and the protection module of any one of claims 1 to 9, wherein the plurality of single electric cores are connected in series and parallel, and the protection module is used for protecting the ear tabs connected with the plurality of single electric cores.

11. A vehicle comprising an electrical core assembly as claimed in claim 10.