CN209747654U

CN209747654U - Battery module and vehicle

Info

Publication number: CN209747654U
Application number: CN201920682613.6U
Authority: CN
Inventors: 周昊; 李雷
Original assignee: Kunshan Bao Innovative Energy Technology Co Ltd
Current assignee: Kunshan Bao Innovative Energy Technology Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2019-12-06
Anticipated expiration: 2029-05-13

Abstract

The utility model discloses a battery module and vehicle, battery module includes: the battery pack comprises a shell, wherein a containing space for containing a battery core is arranged in the shell, and an open end connected with the containing space is arranged on the shell; and the end cover is arranged at the open end to seal the accommodating space, and a heat conducting medium for conducting heat in the shell out is arranged on the end cover. According to the utility model discloses a be provided with the heat-conducting medium who is suitable for to improve heat conduction efficiency in battery module's the end cover, make battery module have good heat conduction effect, improved battery module's performance and security.

Description

Battery module and vehicle

Technical Field

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

Background

In the related art, the heat dissipation effect of the battery module is poor, and the temperature has a great influence on various aspects of the performance of the battery module.

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, an object of the utility model is to provide a battery module, be provided with the heat-conducting medium who is suitable for improving heat conduction efficiency in this battery module's the end cover, make battery module have good heat conduction effect, improved battery module's performance and security.

The utility model discloses still provide a vehicle that has above-mentioned battery module.

According to the utility model discloses a battery module includes: the battery pack comprises a shell, wherein a containing space for containing a battery core is arranged in the shell, and an open end connected with the containing space is arranged on the shell; and the end cover is arranged at the open end to seal the accommodating space, and a heat conducting medium for conducting heat in the shell out is arranged on the end cover.

According to the utility model discloses a battery module, battery module are provided with casing and end cover to be used for protecting the electric core in the battery module, be provided with the heat-conducting medium on the end cover, the heat-conducting medium can improve the heat exchange efficiency between electric core and the end cover, makes the heat in the battery module derive rapidly through the end cover, helps reducing the inside temperature of battery module, and the reliability of battery module is high, and the radiating effect is good.

According to the utility model discloses an embodiment, be formed with the heat transfer cavity in the end cover, be provided with on at least part wall of heat transfer cavity heat-conducting medium.

According to an embodiment of the present invention, the heat exchange chamber comprises: the first heat exchange chamber is close to the accommodating space, and the heat-conducting medium is arranged in the first heat exchange chamber; a second heat exchange chamber disposed outside the first heat exchange chamber.

according to the utility model discloses an embodiment, first heat transfer cavity with have the heat transfer surface between the second heat transfer cavity, the heat transfer surface configuration is zigzag or wave.

According to one embodiment of the utility model, a plurality of baffles which are connected in sequence and inclined are arranged in the heat exchange chamber, and the inclination directions of two adjacent baffles are opposite; the end cap includes: spaced apart inner and outer plates defining the heat exchange chamber, the inner plate and the plurality of baffles defining the first heat exchange chamber, the outer plate and the plurality of baffles defining the second heat exchange chamber.

according to the utility model discloses an embodiment, the inclination of two adjacent baffles is the same.

According to the utility model discloses an embodiment, still be provided with on the planking with the air vent of second heat transfer cavity intercommunication.

according to the utility model discloses an embodiment, be provided with on the border of inner panel and dodge the groove, dodge the groove orientation the planking extends.

According to an embodiment of the present invention, the heat transfer medium is a refrigerant.

The vehicle according to the present invention is briefly described below.

According to the utility model discloses a be provided with the battery module of above-mentioned embodiment on the vehicle, because according to the utility model discloses a be provided with the battery module of above-mentioned embodiment on the vehicle, consequently the battery module heat exchange efficiency of this vehicle is high, and the temperature of electricity core can discharge fast, has improved the security performance of this vehicle.

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 structural view of a battery module according to an embodiment of the present invention;

Fig. 2 is a schematic view of the fit between the end cap and the housing of the battery module according to the embodiment of the present invention;

Fig. 3 is a top view of an end cap according to an embodiment of the present invention;

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

Fig. 5 is a schematic structural diagram according to another embodiment of the present invention.

Reference numerals:

the battery module 100 is provided with a battery case,

The housing 110 is provided with a plurality of openings,

End cap 120, inner plate 121, outer plate 122, spacer 123,

A first heat exchange chamber 101, a second heat exchange chamber 102, a vent 103, and a bypass groove 104.

Detailed Description

reference will now be made in detail to 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 function 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 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

according to the utility model discloses a battery module 100 includes casing 110 and end cover 120, wherein is provided with the accommodation space who holds electric core in the casing 110, has the end of opening that links to each other with accommodation space on the casing 110, and end cover 120 sets up and opens the end in order to seal accommodation space, is provided with the heat-conducting medium who derives the heat in the casing 110 on the end cover 120.

Electric core sets up in casing 110, casing 110 can construct for the tubular structure, be formed with the accommodation space that is used for holding electric core in the casing 110, casing 110 can protect electric core, convenient in the production and the change of battery module 100, ensure battery module 100's reliability, can produce a large amount of heats in battery module 100's course of work, and casing 110 is for the reliability of guaranteeing electric core in battery module 100, generally adopt closed structure, the difficult discharge of heat in having led to battery module 100.

According to the battery module 100 of the application, be provided with end cover 120 at the open end of casing 110, end cover 120 can be with the end shutoff that opens of casing 110, so that battery module 100 forms inclosed space, can protect electric core effectively, battery module 100's reliability has been improved, end cover 120's inner wall and accommodation space contact, at the in-process of battery module 100 work, the heat of electric core risees in the battery module 100, end cover 120 is suitable for the heat derivation in the accommodation space, in order to prevent battery module 100 high temperature.

In the embodiment of this application, be provided with heat-conducting medium on end cover 120, heat-conducting medium can be better with the heat discharge in the battery module 100, heat-conducting medium can set up the inside at end cover 120, heat-conducting medium can reduce the inside temperature of battery module 100 through the state transition of self, end cover 120 utilizes heat-conducting medium to absorb the back with the inside heat of battery module 100, air or the heat transfer system on the vehicle that can circulate through the outside further discharges the heat, make the heat in the battery module 100 keep in a stable state.

According to the utility model discloses a battery module 100, battery module 100 are provided with casing 110 and end cover 120 to be used for protecting the electric core in battery module 100, be provided with heat-conducting medium on end cover 120, heat-conducting medium can improve the heat exchange efficiency between electric core and the end cover 120, makes the heat in battery module 100 derive rapidly through end cover 120, helps reducing the inside temperature of battery module 100, and battery module 100's reliability is high, and the radiating effect is good.

According to the utility model discloses an embodiment, be formed with the heat transfer cavity in the end cover 120, be provided with heat-conducting medium on at least partial wall of heat transfer cavity. The end cover 120 may be constructed in a plate-shaped structure, and the heat exchange chamber may be formed inside the end cover 120, for example, a through hole is provided in a length and/or width direction of the end cover 120 to partition an inner plate 121 contacting the receiving space and an outer plate 122 contacting the external space of the end cover 120; in the working process of the battery module 100, the inner plate 121 of the end cover 120 is in direct contact with the accommodating space, the temperature is highest, when the temperature of the battery module 100 changes unevenly, the temperature of the inner plate 121 also changes accordingly, a heat exchange chamber is arranged between the inner plate 121 and the outer plate 122, the heat exchange chamber can exchange heat again for the unevenly changed part of the battery module 100, the uniformity of heat exchange is ensured, the local temperature on the end cover 120 is prevented from being too high, and the end cover 120 can effectively conduct heat.

Set up heat-conducting medium on heat transfer chamber's at least partial wall, can accelerate thermal conduction speed, the inside of battery module 100 is outwards discharged can be followed fast to the heat of electricity core, has improved the heat exchange efficiency of battery module.

According to an embodiment of the utility model, the heat transfer cavity includes first heat transfer cavity 101 and second heat transfer cavity 102, and wherein first heat transfer cavity 101 is close to accommodation space, is provided with heat-conducting medium in the first heat transfer cavity 101, and second heat transfer cavity 102 sets up the outside at first heat transfer cavity 101.

The first heat exchange chamber 101 is in direct contact with the accommodating space, and a heat conducting medium is arranged in the first heat exchange chamber 101, so that the heat of the battery core can be quickly absorbed by the heat conducting medium, and the stability of the heat in the battery module 100 is ensured; the second heat exchange chamber 102 is disposed outside the first heat exchange chamber 101, the inside of the second heat exchange chamber 102 is connected to the first heat exchange chamber 101, and the outside of the second heat exchange chamber exchanges heat with the outside air to guide out the heat inside the battery module 100.

When the interior of the battery module 100 generates heat unevenly, the first heat exchange chamber 101 guides out the heat inside the battery module 100, and the heat is redistributed between the first heat exchange chamber 101 and the second heat exchange chamber 102, so that the temperature of the outer side wall of the end cover 120 is equalized, and the heat exchange efficiency between the end cover 120 and the external space is improved.

further, a heat exchange surface is arranged between the first heat exchange chamber 101 and the second heat exchange chamber 102, the heat exchange surface is in a zigzag shape or a wave shape, the heat exchange surface arranged between the first heat exchange chamber 101 and the second heat exchange chamber 102 can separate the first heat exchange chamber 101 from the second heat exchange chamber 102, the heat exchange area between the first heat exchange chamber 101 and the second heat exchange chamber 102 is increased, the heat exchange efficiency between the first heat exchange chamber 101 and the second heat exchange chamber 102 is higher, meanwhile, the heat transfer can be buffered, and the heat transfer of the end cover 120 is more uniform.

As shown in fig. 4, according to an embodiment of the present invention, a plurality of baffles 123 are disposed in the heat exchange chamber, the baffles 123 are sequentially connected and inclined, the inclination directions of two adjacent baffles 123 are opposite, the end cover 120 includes an inner plate 121 and an outer plate 122, the inner plate 121 and the outer plate 122 define the heat exchange chamber, the inner plate 121 and the plurality of baffles 123 define the first heat exchange chamber 101, and the outer plate 122 and the plurality of baffles 123 define the second heat exchange chamber 102.

The partition plates 123 may be configured as rectangular plates, an extending direction of the partition plates 123 is the same as a length or width direction of the end cover 120, in a cross section of the end cover 120, the partition plates 123 are sequentially connected and obliquely arranged, and an oblique direction between two adjacent partition plates 123 is opposite, so that the plurality of partition plates 123 are configured as a zigzag shape arranged between the inner plate 121 and the outer plate 122, heat exchange is performed between the first heat exchange chamber 101 and the second heat exchange chamber 102 through the plurality of partition plates 123, a surface of the partition plates 123 is configured as the heat exchange surface, the partition plates 123 are so arranged, a heat exchange area between the first heat exchange chamber 101 and the second heat exchange chamber 102 can be increased, heat exchange efficiency of the partition plates 123 is increased, and heat dissipation of the end cover 120 is more balanced.

According to the utility model discloses an embodiment, two adjacent baffles 123's inclination is the same, as shown in FIG. 3, in the A-A cross-section of end cover 120, first heat transfer chamber 101 and second heat transfer chamber 102 all construct for a plurality of cross-sections are isosceles triangle's cavity, and two adjacent baffles 123's angle can be 45 for the slope to further improve baffle 123's heat transfer area, improve heat transfer speed.

The outer plate 122 of the end cover 120 is further provided with vent holes 103 communicated with the second heat exchange chamber 102, the second heat exchange chamber 102 is air-cooled, and hot air in the second heat exchange chamber 102 can be discharged through the vent holes 103, so that the second heat exchange chamber 102 is connected with the outside, and the heat exchange efficiency of the battery module 100 is further improved.

According to an embodiment of the present invention, the edge of the inner plate 121 is provided with the avoiding groove 104, the avoiding groove 104 extends toward the outer plate 122, and the avoiding groove 104 may be disposed on four edges of the rectangular inner plate 121; when the battery package inside battery module 100 takes place the inflation, the easy at first inflation of battery package's edge, consequently set up on the edge of inner panel 121 and dodge groove 104 and can reserve out the space of dodging, avoid the transitional extrusion between end cover 120 and the battery package, improved battery module 100's security.

According to the utility model discloses an embodiment, heat-conducting medium can be freezing medium, according to the utility model discloses a battery module 100 can be in the new forms of energy vehicle, and the vehicle can be unified to charge in order to improve the continuation of the journey mileage through changing battery module 100, freezing medium in battery module 100 can used repeatedly, changes the back at battery module 100, changes the freezing medium in the end cover 120 simultaneously, makes every battery module 100 can used repeatedly, environmental protection more.

And the refrigerant may be disposed on at least a portion of the wall surfaces of the first heat exchange chamber 101 and the second heat exchange chamber 102, so as to ensure the heat exchange efficiency of the end cap 120 by replacing the refrigerant.

According to the utility model discloses an embodiment is provided with a plurality of first heat transfer chambers 101 and a plurality of second heat transfer chambers 102 that link up in the width direction on the end cover 120, and wherein first heat transfer chamber 101 and second heat transfer chamber 102 interval arrangement are provided with above-mentioned refrigerant on the outer wall of the inner panel 121 of first heat transfer chamber 101 to guarantee the heat exchange efficiency between first heat transfer chamber 101 and the accommodation space. Wherein, the freezing medium can be dry ice or CMC ice bag.

The vehicle according to the present invention is briefly described below.

According to the utility model discloses a be provided with the battery module 100 of above-mentioned embodiment on the vehicle, because according to the utility model discloses a be provided with the battery module 100 of above-mentioned embodiment on the vehicle, consequently the battery module 100 heat exchange efficiency of this vehicle is high, and the temperature of electricity core can be discharged fast, has improved the security performance of this vehicle.

in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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 battery pack comprises a shell, wherein a containing space for containing a battery core is arranged in the shell, and an open end connected with the containing space is arranged on the shell;

And the end cover is arranged at the open end to seal the accommodating space, and a heat conducting medium for conducting heat in the shell out is arranged on the end cover.

2. The battery module according to claim 1, wherein a heat exchange chamber is formed in the end cover, and at least part of the wall surface of the heat exchange chamber is provided with the heat-conducting medium.

3. The battery module according to claim 2, wherein the heat exchange chamber comprises:

The first heat exchange chamber is close to the accommodating space, and the heat-conducting medium is arranged in the first heat exchange chamber;

A second heat exchange chamber disposed outside the first heat exchange chamber.

4. The battery module according to claim 3, wherein the first heat exchange chamber and the second heat exchange chamber have a heat exchange surface therebetween, and the heat exchange surface is configured in a zigzag shape or a wave shape.

5. the battery module according to claim 3, wherein a plurality of sequentially connected and inclined partition plates are arranged in the heat exchange chamber, and the inclination directions of two adjacent partition plates are opposite;

The end cap includes: spaced apart inner and outer plates defining the heat exchange chamber, the inner plate and the plurality of baffles defining the first heat exchange chamber, the outer plate and the plurality of baffles defining the second heat exchange chamber.

6. The battery module according to claim 5, wherein the inclination angles of adjacent two separators are the same.

7. The battery module according to claim 5, wherein the outer plate is further provided with a vent hole communicated with the second heat exchange chamber.

8. The battery module according to claim 5, wherein an avoidance groove is provided on an edge of the inner plate, the avoidance groove extending toward the outer plate.

9. the battery module according to any one of claims 1 to 8, wherein the heat transfer medium is a freezing medium.

10. A vehicle characterized by comprising the battery module according to any one of claims 1 to 9.