CN212542624U - Battery module, battery package and vehicle - Google Patents

Abstract

The present disclosure relates to a battery module, battery package and vehicle, the battery module includes: the battery module comprises a battery cell shell, a module support, a circuit board and busbars, wherein the battery cell shell is arranged above the battery cell shell; the module support is provided with a bonding part, the module support is bonded with the circuit board and the battery cell shell through the bonding part, and the bonding part is at least formed at a position on the module support corresponding to the connection position of the circuit board and the sampling line. Through above-mentioned technical scheme, this battery module, battery and vehicle that disclose can solve the easy fatigue fracture's of aluminium silk bonding wire that leads to with the structural rigidity that aluminium silk bonding wire is connected technical problem.

Description

Battery module, battery package and vehicle

Technical Field

The disclosure relates to the field of power batteries, in particular to a battery module, a battery pack and a vehicle.

Background

For electric vehicles, the safety of the power battery pack is important. The battery module is one of the important component parts of the power battery, and the whole vehicle collects the voltage of each electric core and the total voltage of the battery module through an aluminum wire bonding wire of the battery module by a Battery Management System (BMS), monitors the real-time data of the battery module and all the electric cores, and ensures that each electric core is in a healthy and stable state.

Among the current battery module, the structural rigidity who is used for being connected with the aluminium silk bonding wire is not enough, and first-order modal frequency is lower, easily takes place resonance, leads to the aluminium silk bonding wire fatigue fracture to appear easily. If the aluminum wire bonding wire of the battery module is broken in the service life of the power battery pack, the whole vehicle cannot monitor the health information of the battery core, and therefore whether the working state of the battery core is stable and safe cannot be judged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a battery module, battery and vehicle to solve the easy fatigue fracture's of aluminium silk bonding wire that the structural rigidity who is connected with aluminium silk bonding wire leads to technical problem.

In order to achieve the above object, the present disclosure provides a battery module including: the battery module comprises a battery cell shell, a module support, a circuit board and busbars, wherein the battery cell shell is arranged above the battery cell shell; the module support is provided with a bonding part, the module support is bonded with the circuit board and the battery cell shell through the bonding part, and the bonding part is at least formed at a position on the module support corresponding to the connection position of the circuit board and the sampling line.

Optionally, still including setting up the output utmost point copper bar at module support both ends, the output utmost point copper bar with the circuit board passes through the sampling line electricity is connected, the output utmost point copper bar with the module support passes through joint structure reciprocal anchorage.

Optionally, the clamping structure includes a claw extending upward from the upper surface of the module support, and the claw is clamped with one side edge of the output pole copper bar, so that the output pole copper bar is pressed on the module support.

Optionally, the bonding portion includes a through glue injection hole formed in the module support, and structural glue is injected into the glue injection hole to bond the circuit board, the module support, and the cell shell together.

Optionally, the structural adhesive has an elastic modulus of 1800MPa to 1900 MPa.

Optionally, the sampling line is an aluminum wire bonding line.

On the basis of the technical scheme, the disclosure further provides a battery pack which comprises the battery module in the technical scheme.

On the basis of the technical scheme, the disclosure also provides a vehicle which comprises the battery pack in the technical scheme.

Through above-mentioned technical scheme, be provided with bonding portion on the module support of the battery module that this disclosure provided, bonding portion sets up the position that is corresponding to the junction of sampling line and circuit board on the module support at least, in order to bond near circuit board and the module support of sampling line and the great electric core casing of rigidity each other, make near rigidity of structure of sampling line increase, thereby promote the first order frequency of near structure of sampling line, near structure of sampling line produces resonance with ground excitation when avoiding the vehicle to travel, reduce the fatigue load that the sampling line bore, and then avoid the fracture of sampling line. The battery pack provided by the present disclosure has the same technical effects as the battery module in the above technical solutions, and is not described herein in detail to avoid unnecessary repetition. The vehicle provided by the present disclosure has the same technical effect as the battery pack in the above technical solution, and is not described herein in detail in order to avoid unnecessary repetition.

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 assembly schematic view of a module holder, a circuit board, and a bus bar of a battery module according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural view of a module holder of a battery module according to an embodiment of the present disclosure.

Description of the reference numerals

1-module support, 2-circuit board, 3-bus bar, 4-sampling line, 5-output electrode copper bar, 61-claw and 71-glue injection hole.

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, unless otherwise stated, the use of the directional words such as "upper and lower" generally means that the battery module is mounted on the vehicle and is in the upper and lower states in the normal use state, and "inner and outer" generally means inner and outer with respect to the profile of the corresponding component itself. Furthermore, in the following description, when referring to the drawings, like reference numbers in different drawings denote like elements.

In the embodiment of the present disclosure, a battery module is provided, and referring to fig. 1 to 3, the battery module may include a module support 1, a circuit board 2, and a plurality of busbars 3, the module support 1 is disposed above the cell casing, the circuit board 2 is disposed above the module support 1, the plurality of busbars 3 are disposed above the module support 1 and arranged along two sides of the circuit board 2, and each busbar 3 is electrically connected to the circuit board 2 through a sampling line 4. Wherein, can be formed with bonding portion on the module support 1, module support 1 bonds each other through bonding portion and circuit board 2 and electric core shell, and bonding portion forms the position corresponding to the junction of circuit board 2 and sampling line 4 on module support 1 at least.

Through the technical scheme, be provided with the portion of bonding on the module support 1 of the battery module that this disclosure provided, the portion of bonding sets up the position that is corresponding to the junction of sampling line 4 and circuit board 2 on module support 1 at least, in order to bond circuit board 2 and module support 1 near sampling line 4 and the great electric core casing of rigidity each other, make the rigidity of near structure of sampling line 4 increase, thereby promote the first order frequency of near structure of sampling line 4, near structure and the ground excitation of sampling line 4 produce resonance when avoiding the vehicle to travel, reduce the fatigue load that sampling line 4 bore, and then avoid the fracture of sampling line 4.

In addition, the battery module further comprises output electrode copper bars 5 arranged at two ends of the module support 1, as shown in fig. 1 to 3, the output electrode copper bars 5 are electrically connected with the circuit board 2 through sampling lines 4, and the output electrode copper bars 5 are mutually fixed with the module support 1 through clamping structures. Because the copper bar pencil of output utmost point copper bar 5 and whole battery package is connected, and the copper bar pencil is great in the vibration operating mode, passes through joint structure relatively fixed with output utmost point copper bar 5 and module support 1, can avoid the copper bar pencil to drive output utmost point copper bar 5 and produce and vibrate by a wide margin to avoid output utmost point copper bar 5 to be connected sampling line 4 to bear the fatigue load that drags repeatedly.

In the embodiments of the present disclosure, the snap structure may be configured in any suitable manner. Alternatively, referring to fig. 1 and 3, the clamping structure may include a clamping jaw 61 extending upward from the upper surface of the module support 1, the clamping jaw 61 has a clamping head configured as a right triangle at its upper end, the hypotenuse of the right triangle is configured as a guiding inclined plane, and the bottom side is configured as a clamping surface, when one side edge of the output electrode copper bar 5 slides on the guiding inclined plane from top to bottom, the guiding inclined plane can guide the clamping jaw 61 to deform slightly toward a direction away from the output electrode copper bar 5, and when the output electrode copper bar 5 moves downward along the guiding inclined plane to the clamping surface, the clamping surface abuts against and presses against the upper surface of the output electrode copper bar 5, so that the output electrode copper bar 5 is firmly pressed on the module support 1.

In particular embodiments of the present disclosure, the bonding portion may be configured in any suitable manner. Optionally, the bonding portion may include a through glue injection hole 71 formed in the module holder 1, and a structural glue may be injected into the glue injection hole 71 to bond the circuit board 2, the module holder 1, and the cell casing to each other.

In a specific embodiment of the present disclosure, the elastic modulus of the structural adhesive may be 1800MPa to 1900MPa, and preferably, the elastic modulus of the structural adhesive may be 1850 MPa.

In the embodiment of the present disclosure, the sampling line 4 may be an aluminum wire bonding line.

On the basis of the technical scheme, the disclosure further provides a battery pack which comprises the battery module in the technical scheme.

Through the above technical scheme, the battery pack provided by the present disclosure has the same technical effects as the battery module in the above technical scheme, and is not repeated herein in order to avoid unnecessary repetition. Through the above technical scheme, the vehicle provided by the present disclosure has the same technical effect as the battery pack in the above technical scheme, and is not described herein in detail in order to avoid unnecessary repetition.

On the basis of the technical scheme, the disclosure also provides a vehicle which comprises the battery pack in the technical scheme.

Through the above technical scheme, the vehicle provided by the present disclosure has the same technical effect as the battery pack in the above technical scheme, and is not described herein in detail in order to avoid unnecessary repetition.

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 (8)

1. A battery module, comprising:

a module bracket (1) arranged above the battery cell shell,

a circuit board (2) disposed above the module holder (1), and

the bus bars (3) are arranged above the module bracket (1) and are arranged along two sides of the circuit board (2), and the circuit board (2) is electrically connected with the bus bars (3) through sampling lines (4);

wherein, be formed with bonding portion on module support (1), module support (1) passes through bonding portion with circuit board (2) with the electric core casing bonds each other, bonding portion forms at least on module support (1) corresponding to circuit board (2) with the position of the junction of sampling line (4).

2. The battery module according to claim 1, further comprising output electrode copper bars (5) disposed at two ends of the module support (1), wherein the output electrode copper bars (5) are electrically connected to the circuit board (2) through the sampling lines (4), and the output electrode copper bars (5) are fixed to the module support (1) through a clamping structure.

3. The battery module according to claim 2, wherein the clamping structure comprises a claw (61) extending upwards from the upper surface of the module bracket (1), and the claw (61) is clamped with one side edge of the output pole copper bar (5) so that the output pole copper bar (5) is pressed on the module bracket (1).

4. The battery module according to claim 1 or 2, characterized in that the bonding part comprises a through glue injection hole (71) formed in the module holder (1), and structural glue is injected into the glue injection hole (71) to bond the circuit board (2), the module holder (1) and the cell casing to each other.

5. The battery module according to claim 4, wherein the structural adhesive has an elastic modulus of 1800MPa to 1900 MPa.

6. The battery module according to claim 1 or 2, wherein the sampling line (4) is an aluminum wire bonding line.

7. A battery pack comprising the battery module according to any one of claims 1 to 6.

8. A vehicle characterized by comprising the battery pack according to claim 7.

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