CN210723152U

CN210723152U - Battery module, battery package and vehicle

Info

Publication number: CN210723152U
Application number: CN201921897776.2U
Authority: CN
Inventors: 亢策策; 张佳佳; 马卫召; 薛晨
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-06-09
Anticipated expiration: 2029-11-05

Abstract

The utility model discloses a battery module, battery package and vehicle, the battery module includes: the shell is internally provided with an accommodating space; the battery cell is constructed into a plurality of battery cells and arranged in the accommodating space, and the busbar is connected with at least part of the pole columns of the battery cells; the flexible circuit board is arranged above the plurality of battery cells and is suitable for collecting heat of the busbar; a temperature sensor provided at a lower side surface of the flexible circuit board to detect a temperature of the bus bar. The utility model discloses battery module can effectually embody the heat temperature that busbar temperature and electric core upper surface distribute, even receive the extrusion battery module top, temperature sensor also can not be impaired, has solved temperature sensor's service problem effectively, has guaranteed battery module's security.

Description

Battery module, battery package and vehicle

Technical Field

The utility model belongs to the technical field of the battery technique and specifically relates to a battery module, battery package and vehicle are related to.

Background

The temperature sensor (NTC) is a sensitive electrical component, and is generally located at the top of the cell connection system. In battery module transportation installation, temperature sensor receives extrusion or other stress effect very easily, leads to temperature sensor impaired, causes temperature sensor's resistance value to change. Wherein, because the resistance value that Battery Management System (BMS) gathered corresponds the inside temperature of battery module, temperature sensor resistance deviation can lead to the inside temperature inaccuracy of battery module of gathering, can take place the too high phenomenon of catching fire of electric core temperature.

In the prior art, the temperature sensor is protected by dispensing above the temperature sensor, but the damage to the temperature sensor cannot be avoided due to the limited strength of the glue.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

Therefore, a first object of the present invention is to provide a battery module, which can effectively reflect the temperature of heat dissipated from the upper surface of the battery cell, and the temperature sensor will not be damaged even if the upper side of the battery module is squeezed;

a second object of the present invention is to provide a battery pack, wherein the battery pack includes the above battery module;

a third object of the present invention is to provide a vehicle, which includes the above battery pack.

In order to achieve the above object, the present invention provides, in a first aspect, a battery module, including: the shell is internally provided with an accommodating space; the battery cell is constructed into a plurality of battery cells and arranged in the accommodating space, and the busbar is connected with at least part of the pole columns of the battery cells; the flexible circuit board is arranged above the plurality of battery cells and is suitable for collecting heat of the busbar; a temperature sensor provided at a lower side surface of the flexible circuit board to detect a temperature of the bus bar.

The utility model discloses battery module can effectually embody the heat temperature that busbar temperature and electric core upper surface distribute, even receive the extrusion battery module top, temperature sensor also can not be impaired, has solved temperature sensor's service problem effectively, has guaranteed battery module's security.

Further, the battery module still includes: the bus bar support is provided with the bus bar, the flexible circuit board is arranged above the bus bar support, and the bus bar support is provided with an avoiding structure for avoiding the temperature sensor.

Further, the avoiding structure is an avoiding hole penetrating through the bus bar support.

Further, the depth of the avoidance hole is larger than the height of the temperature sensor.

Further, be provided with a plurality ofly on flexible circuit board's the downside temperature sensor, be provided with on the busbar support with a plurality of temperature sensor complex a plurality of holes of dodging.

Furthermore, a collection nickel sheet is arranged between the temperature sensor and the flexible circuit board.

Further, at least a portion of the collecting nickel sheet is compressed between the busbar holder and the flexible circuit board.

Further, the battery module still includes: a battery management system electrically connected with the flexible circuit board.

The utility model discloses the second aspect provides a battery package, include the battery module.

The utility model discloses the third aspect provides a vehicle, include the battery package.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of a battery module according to an embodiment of the present invention;

fig. 2 is a bottom view of a cell connection system;

fig. 3 is a top view of a battery module according to an embodiment of the present invention.

Reference numerals:

a shell 1, a battery core 2, a bus bar 3, a flexible circuit board 4, a temperature sensor 5,

the bus bar support 6, the avoidance hole 601,

and collecting the nickel sheet 7.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A battery module according to an embodiment of the present invention is described below with reference to fig. 1 to 3, and includes a housing 1, a cell 2, a bus bar 3, a flexible circuit board 4, and a temperature sensor 5.

Specifically, a containing space is arranged in the shell 1; the battery cells 2 are constructed into a plurality of battery cells and arranged in the accommodating space, and the bus bar 3 is connected with at least part of the pole columns of the battery cells 2; the flexible circuit board 4 is arranged above the plurality of electric cores 2 and is suitable for collecting heat of the busbar 3; a temperature sensor 5 is provided on the lower side of the flexible circuit board 4 to detect the temperature of the bus bar 3.

According to the battery module of the utility model, the temperature sensor 5 arranged at the top of the connection system of the electric core 2 in the prior art is arranged at the lower side surface of the flexible circuit board 4, which not only can effectively reflect the temperature of the busbar 3 and the heat temperature emitted from the upper surface of the electric core 2, but also can prevent the temperature sensor 5 from being damaged due to extrusion, effectively solves the use problem of the temperature sensor 5 and ensures the safety of the battery module; meanwhile, the temperature sensor 5 arranged above the battery pack in the prior art is arranged on the lower side face of the flexible circuit board 4, so that the height of the battery module is reduced, the internal space of the battery module is saved, and the energy density is improved.

According to the utility model discloses an in the embodiment, the battery module still includes: the bus bar support 6 is provided with the bus bar 3 on the bus bar support 6, and the flexible circuit board 4 sets up in the top of bus bar support 6, and is provided with the structure of dodging temperature sensor 5 on the bus bar support 6. The bus bar bracket 6 plays a role in supporting the flexible circuit board 4, the bus bar 3 and the like after installation and installation are finished; the busbar 3 is connected with the poles of the two electric cores 2 to realize the electric connection between the electric cores 2; after the bus bar 3 is welded, the flexible circuit board 4 collects the temperature of the electric core 2 in the battery module and transmits the temperature to a battery management system; the temperature sensor 5 is arranged in the avoiding structure, so that the temperature sensor can be protected from being extruded, and the measuring accuracy of the temperature sensor 5 is ensured.

Specifically, the avoiding structure is an avoiding hole 601 penetrating through the bus bar support 6, and the depth of the avoiding hole 601 is larger than the height of the temperature sensor 5. The through structure can accurately measure the temperature of the heat emitted by the upper surface of the battery core 2; temperature sensor 5 sets up in dodging hole 601, and dodges the degree of depth of hole 601 and be greater than temperature sensor 5's height, can effectively avoid battery module temperature sensor 5 not receive the extrusion in transportation, assembly, use, guarantees temperature sensor 5 measuring accuracy, improves battery module's reliability.

According to the utility model discloses an in the embodiment, be provided with a plurality of temperature sensor 5 on the downside of flexible circuit board 4, be provided with on busbar support 6 with a plurality of dodging hole 601 of a plurality of temperature sensor 5 complex. Can carry out temperature measurement by 2 points of a plurality of electric cores like this, prevent that electric core 2 from rising the temperature too high phenomenon of catching a fire, guarantee the security of battery module.

According to the utility model discloses an in the embodiment, be provided with between temperature sensor 5 and the flexible circuit board 4 and gather nickel piece 7. The metal nickel has good corrosion resistance and is not easy to oxidize; gather the temperature that busbar 3's temperature and electric core 2 upper surface gived off can be gathered to nickel piece 7, and temperature sensor 5 laminates and carries out temperature acquisition on gathering nickel piece 7.

According to an embodiment of the present invention, at least part of the collecting nickel plate 7 is compressed between the busbar holder 6 and the flexible circuit board 4. Therefore, the collecting nickel sheet 7 can be fixed in the avoiding hole 601 of the bus bar bracket 6, and the situation of moving or falling cannot occur.

According to the utility model discloses an in the embodiment, the battery module still includes: and the battery management system is electrically connected with the flexible circuit board 4. The temperature of collecting busbar 3 and the heat temperature that electric core 2 upper surface gived off are gathered through dodging hole 601 to collection nickel piece 7 on the flexible circuit board 4, and other signal transmission are turned into with temperature signal to battery management system to rethread temperature sensor 5, to the inside temperature-detecting that realizes of battery module.

According to the utility model provides an in the embodiment of the battery package, including foretell battery module. Including the utility model discloses the battery package of battery module can effectual protection vulnerable component receive destruction in transportation, assembly process, influences the security of battery package.

According to the utility model provides an in the embodiment of the utility model provides a vehicle, including foretell battery package. Contain the utility model discloses the vehicle battery performance of battery package is good, can accurately predict out 2 inside temperatures of electric core, prevents that 2 high-temperature of electric core from causing the condition of explosion on fire, influences consumer property and life safety.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module, comprising:

the device comprises a shell (1), wherein an accommodating space is arranged in the shell (1);

the battery comprises battery cores (2) and a bus bar (3), wherein the battery cores (2) are constructed in a plurality and are arranged in the accommodating space, and the bus bar (3) is connected with at least part of poles of the battery cores (2);

the flexible circuit board (4) is arranged above the plurality of battery cells (2) and is suitable for collecting heat of the busbar (3);

a temperature sensor (5), the temperature sensor (5) being disposed on a lower side surface of the flexible circuit board (4) to detect a temperature of the bus bar (3).

2. The battery module according to claim 1, further comprising: the bus bar support (6), be provided with on the bus bar support (6) bus bar (3), flexible circuit board (4) set up the top of bus bar support (6), just be provided with on the bus bar support (6) and dodge temperature sensor (5) dodge the structure.

3. The battery module according to claim 2, wherein the relief structure is a relief hole (601) penetrating the bus bar support (6).

4. The battery module according to claim 3, wherein the depth of the relief hole (601) is greater than the height of the temperature sensor (5).

5. The battery module according to claim 3, wherein a plurality of temperature sensors (5) are provided on the lower side surface of the flexible circuit board (4), and a plurality of relief holes (601) are provided on the bus bar holder (6) to be fitted with the plurality of temperature sensors (5).

6. The battery module according to claim 2, characterized in that a collecting nickel sheet (7) is arranged between the temperature sensor (5) and the flexible circuit board (4).

7. The battery module according to claim 6, wherein at least part of the collecting nickel sheet (7) is compressed between the busbar holder (6) and the flexible circuit board (4).

8. The battery module according to claim 1, further comprising: a battery management system electrically connected with the flexible circuit board (4).

9. A battery pack comprising the battery module according to any one of claims 1 to 8.

10. A vehicle characterized by comprising the battery pack according to claim 9.