CN213601978U

CN213601978U - Fixing unit of battery pack copper bar and battery module

Info

Publication number: CN213601978U
Application number: CN202023161546.5U
Authority: CN
Inventors: 亢策策
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-07-02
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to a fixed unit and battery module of battery package copper bar, fixed unit (1) be used for with battery module's electric core unit (2) range upon range of setting, the top of fixed unit (1) has opening (11) and forms and is used for accomodating through groove (111) of copper bar (3), wherein, the extending direction perpendicular to of through groove (111) electric core unit (2) with the direction of arranging of fixed unit (1). The fixed unit and the battery module of battery package copper bar that this disclosure provided can solve the technical problem that battery package copper bar and battery module are not convenient for assemble.

Description

Fixing unit of battery pack copper bar and battery module

Technical Field

The utility model relates to a power battery wraps the field, specifically relates to a fixed unit and battery module of battery package copper bar.

Background

The battery module is the energy storage unit of power battery package, and the battery package passes through battery module storage electric energy to go out through battery module with electric energy transmission when whole car needs. The battery module comprises a plurality of battery cores, and the battery cores are fixedly packaged together through the same shell frame or a binding belt and are contacted with the outside through a unified boundary.

When a plurality of copper bars need to be arranged at the battery package, because the unable direct mount of copper bar is on battery module, consequently, can only fix the copper bar through arranging a plurality of copper bar fixed bolsters in the battery module outside, cause cost and space extravagant for battery module's volume is great and can't reduce.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fixed unit and battery module of battery package copper bar to solve the technical problem that battery package copper bar and battery module are not convenient for assemble.

In order to achieve the above object, the present disclosure provides a fixing unit of a copper bar for a battery pack, which is stacked with a battery cell unit of a battery module, wherein an opening is formed at the top of the fixing unit, a through groove for accommodating the copper bar is formed in the top of the fixing unit, and an extending direction of the through groove is perpendicular to an arrangement direction of the battery cell unit and the fixing unit.

Optionally, the number of the through grooves is multiple, and the through grooves are arranged at intervals along the arrangement direction of the battery cell unit and the fixing unit, wherein projections of at least two of the through grooves in the horizontal direction are at least partially overlapped.

Optionally, the through slot is configured as a longitudinal slot enabling the copper bar to be vertically placed.

Optionally, at least one through groove is configured to be capable of completely receiving the copper bar and has a clamping structure for limiting the copper bar, and the clamping structure includes a protrusion protruding inwards from a side wall of the through groove, so that the copper bar can be limited between the protrusion and a groove bottom of the through groove.

Optionally, a surface of the protrusion facing the opening of the through slot is formed with a guide slope for the copper bar to slide in.

Optionally, the protrusion is configured as a resilient arm of plastic material.

Optionally, the protrusions are formed on both side walls of the through groove, and the distance between the protrusions on both sides and the groove bottom of the through groove is the same.

On the basis of the above technical scheme, this disclosure still provides a battery module, includes: at least two cell units; in the fixing unit in the above technical solution, the fixing unit is stacked between two adjacent battery cell units; and the CCS assembly is used for bridging the tops of two adjacent battery cell units.

Optionally, the method further comprises: the upper cover is covered and arranged above the battery cell unit, the fixing unit and the copper bar; the binding belt is circumferentially wrapped on the outer side of an integrated structure formed by the battery cell unit and the fixing unit; and the end plate is fixed on the outer end face of the battery cell unit in the arrangement direction of the battery cell unit and the fixing unit.

Optionally, the CCS subassembly is corresponding the position of fixed unit is formed with concave part, the top of fixed unit is formed with and is used for accomodating concave part dodge the groove, dodge the groove with the extending direction mutually perpendicular who link up the groove, just the tank bottom of dodging the groove is less than link up the tank bottom of groove, so that the copper bar interval sets up the top of CCS subassembly.

Through above-mentioned technical scheme, the fixed unit of battery package copper bar that this disclosure provided stacks up the setting with electric core unit in the battery module, and can not occupy the space in the battery module outside to can make the space in the battery package by rational utilization, reduce the space extravagant. And because the top of the fixing unit is provided with the through groove, and the extending direction of the through groove is vertical to the stacking direction, the copper bar can enter the through groove from the notch of the through groove and pass through the battery module, so that the copper bar is quickly and reliably mounted, and the arrangement of the copper bar in the battery pack is facilitated. The battery module that this disclosure provided has the same technological effect with the fixed unit of battery package copper bar among the above-mentioned technical scheme, avoids unnecessary repetition, does not describe here any longer.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is an isometric view of a battery module with a securing unit fitted with a battery pack copper bar in an embodiment of the present disclosure;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural diagram of a CCS assembly of a battery module according to an embodiment of the present disclosure.

Description of the reference numerals

1-fixing unit, 11-opening, 111-through groove, 112-protrusion, 1121-guide inclined surface, 12-avoidance groove, 2-cell unit, 21-cell, 3-copper bar, 4-CCS component, 41-bus bar, 42-FPC, 43-concave part, 5-upper cover, 6-ribbon and 7-end plate.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, when the terms of orientation such as "upper and lower" are used without being contrary to the description, the terms of orientation such as "upper and lower" generally refer to the upper and lower directions of the fixing unit of the copper bar of the battery pack when the fixing unit is assembled to the battery pack and in a normal use state, and "inner and outer" refer to the inner and outer directions relative to the profile of the corresponding component.

According to a specific embodiment of the present disclosure, a fixing unit of a copper bar for a battery pack is provided, and referring to fig. 1 to 3, the fixing unit 1 may be configured to be stacked with a cell unit 2 of a battery module, a top of the fixing unit 1 may have an opening 11 and form a through slot 111 for receiving the copper bar 3, wherein an extending direction of the through slot 111 is perpendicular to an arrangement direction of the cell unit 2 and the fixing unit 1. That is to say, the length direction of battery module can be followed to the direction of arranging of fixed unit 1 and electric core unit 2, the extending direction who link up groove 111 can follow the width direction of battery module, the copper bar 3 of placing in link up groove 111 can pass the battery module along the width direction of battery module, under the certain prerequisite of length of copper bar 3, can make the length that the copper bar 3 passed the part of battery module minimum, be favorable to bending of copper bar 3 along the battery module direction of height in the part in the battery module outside.

Through above-mentioned technical scheme, the fixed unit 1 of the battery package copper bar that this disclosure provided stacks up the setting with electric core unit 2 in the battery module, and can not occupy the space in the battery module outside to can make the space in the battery package by rational utilization, reduce the space extravagant. And because the top of the fixing unit 1 is provided with the through groove 111, and the extending direction of the through groove 111 is perpendicular to the stacking direction, the copper bar 3 can enter the through groove 111 from the notch of the through groove 111 and pass through the battery module, so that the copper bar 3 can be quickly and reliably mounted, and the arrangement of the copper bar 3 in the battery pack is facilitated.

In order to assemble a plurality of copper bars 3 on battery module, refer to fig. 1 to 3 and show, the quantity of through groove 111 can be a plurality ofly, and set up along electric core unit 2 and fixed unit 1's the direction interval of arranging, make a plurality of copper bars 3 all can pass battery module along battery module's width direction, wherein, at least two through groove 111 partially coincide at the projection of horizontal direction at least, with the shared space of the direction of height of reducing a plurality of copper bars 3 along battery module, thereby it is nimble to make copper bar 3 move towards behind the battery module, be convenient for copper bar 3 follow direction of height's bending.

Further, as shown with reference to fig. 1 to 3, the through-slot 111 may be configured as a longitudinal slot enabling the copper bar 3 to be placed vertically. Because the through groove 111 can make the copper bar 3 vertically place, namely, when the copper bar 3 was placed in the through groove 111, the width direction of the copper bar 3 was parallel with the vertical direction, consequently, the through groove 111 that is constructed as a vertical groove can reduce the occupied space of the copper bar 3 along the battery module length direction. That is to say, under the fixed condition of the thickness of fixed unit 1 (the size of fixed unit 1 along battery module length direction), a plurality of copper bars 3 can be placed perpendicularly and arrange along the length direction interval of battery module when passing the battery module, and this kind of arrangement can make more copper bars 3 pass the battery module.

Furthermore, referring to fig. 3, the at least one through groove 111 may be configured to be able to completely receive the copper bar 3, and have a clamping structure for limiting the copper bar 3, the clamping structure including a protrusion 112 protruding inward from a sidewall of the through groove 111, so that the copper bar 3 can be confined between the protrusion 112 and a bottom of the through groove 111, thereby preventing the copper bar 3 from coming out of a notch of the through groove 111 in a height direction of the battery module.

In order to facilitate the copper bar 3 to enter the through slot 111 from the notch of the through slot 111, referring to fig. 3, a guide inclined plane 1121 for sliding the copper bar 3 in may be formed on a surface of the protrusion 112 facing the opening of the through slot 111, and the copper bar 3 may slide into the through slot 111 under the guiding action of the guide inclined plane 1121 and is stopped in the through slot 111 to be difficult to slide out.

In addition, the protrusion 112 may be configured as an elastic arm made of plastic, and when the copper bar 3 slides on the guiding inclined surface 1121, the copper bar 3 can abut against the elastic arm to make it elastically deform downwards and outwards, so that the process of placing the copper bar 3 into the through groove 111 is labor-saving and fast. After the copper bar 3 enters the through groove 111, the elastic arm resets, can stop above the copper bar 3, and limit the copper bar 3 in the through groove 111 along the height direction of the battery module.

In order to ensure the operational reliability of the protrusion 112, as shown in fig. 2 and 3, the protrusion 112 may be formed on both side walls of the through-groove 111, and the distance between the protrusion 112 on both sides and the bottom of the through-groove 111 is the same, so that the surface copper bar 3 is skewed in the through-groove 111.

On the basis of the above technical solution, the present disclosure further provides a battery module, as shown in fig. 1 to fig. 3, the battery module may include at least two battery cell units 2, a fixing unit 1 in the above technical solution, and a CCS assembly 4. The fixing units 1 may be stacked between adjacent cell units 2, and the CCS assembly 4 bridges the tops of two adjacent cell units 2.

Through above-mentioned technical scheme, the battery module that this disclosure provided has the same technological effect with the fixed unit of battery package copper bar among the above-mentioned technical scheme, avoids unnecessary repetition, does not describe here any more.

In addition, as shown in fig. 1 to 3, the battery module may further include an upper cover 5, a band 6 and an end plate 7, wherein the upper cover 5 is installed on the battery cell unit 2 in a covering manner, the fixing unit 1 and the copper bar 3 are arranged above the copper bar 3, the band 6 is circumferentially wrapped on the outer side of the integrated structure formed by the battery cell unit 2 and the fixing unit 1, so that the battery cell unit 2 and the fixing unit 1 are kept stacked on each other and cannot be scattered, and in the arrangement direction of the battery cell unit 2 and the fixing unit 1, the end plate 7 is fixed on the outer end surface of the battery cell unit 2, so as to be used for inserting a high-.

Each of the battery cells 2 may include one or more battery cells 21, a stacking direction of the battery cells 21 may be the same as a stacking direction of the battery cells 2 and the fixing unit 1, and the poles of the battery cells 21 are located on the same side of the battery cells 2.

As shown in fig. 4, the CCS assembly 4 may include a bus bar 41 connected to the cell unit 2, and an FPC42 connected to the bus bar 41, wherein the bus bar 41 is electrically connected to a pole of each cell 21, the FPC42 is adhered to the fixing unit 1, and the bus bar 41 is adhered to the fixing unit 1. In order to avoid the copper bars 3 passing through the through grooves 111, the CCS assembly 4 may further have a concave portion 43 formed at a position corresponding to the fixing unit 1, an avoiding groove 12 for receiving the concave portion 43 may be formed at a top of the fixing unit 1, the avoiding groove 12 is perpendicular to an extending direction of the through groove 111 to conform to the extending direction of the CCS assembly 4 bridging the adjacent cell units 2, and a groove bottom of the avoiding groove 12 is lower than a groove bottom of the through groove 111 to allow the copper bars 3 to be spaced above the CCS assembly 4, so that the copper bars 3 are conveniently placed into the through groove 111 from a notch of the through groove 111.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The utility model provides a fixed unit of battery package copper bar for with the range upon range of setting of electric core unit (2) of battery module, its characterized in that, the top of fixed unit (1) has opening (11) and forms and is used for accomodating through groove (111) of copper bar (3), wherein, the extending direction perpendicular to of through groove (111) electric core unit (2) with the direction of arranging of fixed unit (1).

2. The fixing unit according to claim 1, wherein the number of the through slots (111) is multiple and the through slots are arranged at intervals along the arrangement direction of the cell units (2) and the fixing unit (1), and projections of at least two through slots (111) in the horizontal direction at least partially overlap.

3. Fixing unit according to claim 2, characterized in that the through slot (111) is configured as a longitudinal slot enabling the copper bar (3) to be placed vertically.

4. Fixing unit according to claim 3, characterized in that at least one of said through slots (111) is configured to be able to receive the copper bar (3) completely and has a snap-in structure for retaining the copper bar (3), said snap-in structure comprising a projection (112) projecting inwards from a lateral wall of said through slot (111) so that the copper bar (3) can be trapped between said projection (112) and a bottom of the through slot (111).

5. Fixing unit according to claim 4, characterized in that the surface of the projection (112) facing the opening of the through slot (111) is formed with a guide ramp (1121) for the sliding in of the copper bar (3).

6. A fixation unit as claimed in claim 4 or 5, characterized in that the protrusion (112) is configured as a resilient arm of plastic material.

7. A fixation unit according to claim 4, characterised in that the protrusions (112) are formed on both side walls of the through slot (111) and the distance between the protrusions (112) on both sides and the bottom of the through slot (111) is the same.

8. A battery module, comprising:

at least two cell units (2);

the fixing unit (1) of any one of claims 1 to 7, the fixing unit (1) being laminated between two adjacent cell units (2); and

and the CCS assembly (4) is used for bridging the tops of two adjacent battery cell units (2).

9. The battery module according to claim 8, further comprising:

the upper cover (5) is covered and installed above the battery cell unit (2), the fixing unit (1) and the copper bar (3);

the binding belt (6) is circumferentially wrapped on the outer side of an integrated structure formed by the battery cell unit (2) and the fixing unit (1); and

an end plate (7), wherein the end plate (7) is fixed to an outer end surface of the cell unit (2) in an arrangement direction of the cell unit (2) and the fixing unit (1).

10. The battery module according to claim 8, wherein the CCS module (4) is formed with a concave portion (43) at a position corresponding to the fixed unit (1), the top of the fixed unit (1) is formed with an avoidance groove (12) for accommodating the concave portion (43), the avoidance groove (12) is perpendicular to the extending direction of the through groove (111), and the groove bottom of the avoidance groove (12) is lower than the groove bottom of the through groove (111), so that the copper bar (3) is arranged above the CCS module (4) at intervals.