CN213459966U

CN213459966U - Battery box, battery module and consumer

Info

Publication number: CN213459966U
Application number: CN202022395763.4U
Authority: CN
Inventors: 王天付; 程志刚; 李阳
Original assignee: Sunwoda Electric Vehicle Battery Co Ltd
Current assignee: Xinwangda Power Technology Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-06-15
Anticipated expiration: 2030-10-23

Abstract

The utility model relates to the technical field of batteries, a battery box, battery module and consumer, the battery box includes the support, exhaust hood and sealing member, the support corresponds each electric core and is provided with the exhaust entry, the exhaust hood is provided with the exhaust chamber and feeds through in each exhaust entry, still be provided with the exhaust outlet in intercommunication exhaust chamber on the exhaust hood, from this, only connect in the support and form exhaust passage through exhaust hood and sealing member, the overall structure has been simplified, thereby thickness reduces, the materials used reduce, be favorable to the lightweight of battery box, and the assembly process has been simplified, can effective reduce cost. The battery module comprises the battery core and the battery box, so that the overall structure of the battery module is simplified, the lightweight design of the battery module is facilitated, the assembly process of the battery module can be simplified, and the cost is saved. The electric equipment adopting the battery module also has the advantages.

Description

Battery box, battery module and consumer

Technical Field

The utility model relates to a battery technology field especially relates to a battery box, battery module and consumer.

Background

At present, the battery module is provided with an exhaust passage, so that high-temperature gas generated by the battery can be effectively released, and safety problems caused by temperature accumulation, such as fire, explosion and the like, are avoided. In the related art, the structure of forming the exhaust passage in the battery module is complicated, and the assembly is also cumbersome.

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, the utility model provides a can have exhaust passage's battery box to can simplify mechanical structure and assembly process. And provides a battery module with the battery box and electric equipment with the battery module.

According to the utility model discloses a battery box of first aspect embodiment for assemble electric core, include:

the bracket is used for fixing the electric cores and is provided with an exhaust inlet corresponding to each electric core;

the exhaust hood is detachably connected to the support and provided with exhaust cavities, the exhaust cavities are communicated with the exhaust inlets, the exhaust hood is also provided with exhaust outlets communicated with the exhaust cavities, and the exhaust inlets, the exhaust cavities and the exhaust outlets jointly form exhaust channels for the power supply cores to exhaust outwards;

a seal between the bracket and the exhaust hood.

According to the utility model discloses battery box has following beneficial effect at least: the battery box comprises a support, an exhaust inlet is formed in the support and used for abutting against an exhaust position of the battery core, and an exhaust hood is provided with an exhaust cavity and an exhaust outlet.

According to some embodiments of the invention, the exhaust hood orientation one side of support is provided with the sunk structure, the inner wall of sunk structure encloses into the exhaust chamber, the sunk structure can with the exhaust entry all covers wherein, the sealing member surround in the outer periphery of sunk structure.

According to some embodiments of the invention, the exhaust outlet communicates with the middle part of the exhaust chamber.

According to some embodiments of the utility model, be provided with on the support and be used for connecting the first connecting portion of exhaust hood, correspond on the exhaust hood first connecting portion are provided with the second connecting portion, first connecting portion with the connection can be dismantled to the second connecting portion.

According to some embodiments of the invention, the first connection portion comprises a plurality of threaded holes, and the second connection comprises a plurality of through holes corresponding to the threaded holes.

According to some embodiments of the utility model, the exhaust hood for the opposite side of support corresponds each through-hole department is provided with recessed platform, the through-hole is seted up in platform department.

According to some embodiments of the utility model, be provided with on the sealing member and let the position portion for avoid the support with the junction of exhaust hood.

According to some embodiments of the utility model, the sealing member adopts and is annular sealing washer, let the position including the shaping in curved arc portion on the sealing washer, curved arc portion is used for bypassing the support with the junction of exhaust hood.

According to the utility model discloses a battery module of second aspect embodiment, a serial communication port, include:

the battery cell is provided with an exhaust port;

in the battery box of any embodiment, the battery cell is accommodated in the battery box, and the exhaust inlet of the bracket is correspondingly communicated with the exhaust port.

According to the utility model discloses battery module has following beneficial effect at least:

the battery box of battery module compares in traditional battery box, has reduced the structural component to simplify the overall structure of battery box, be favorable to the lightweight design of battery module, can simplify the assembly process of battery module simultaneously, practice thrift the cost.

According to the utility model discloses a consumer, its characterized in that, including the battery module of any one of above-mentioned embodiment, the battery module is used for as the power supply of consumer.

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 invention will be further described with reference to the following drawings and examples, in which:

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

FIG. 2 is an exploded view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic perspective view of an exhaust hood according to one embodiment;

FIG. 4 is a top view of FIG. 1;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 5 at I;

fig. 7 is a sectional view taken along line B-B in fig. 4.

Reference numerals:

a battery cell 100, an exhaust port 110;

the battery box comprises a battery box 200, a bracket 210, an exhaust inlet 211, a first connecting part 212, a threaded hole 213, an exhaust cover 220, an exhaust outlet 221, an exhaust cavity 222, an exhaust joint 223, a barb 224, a second connecting part 225, a through hole 226, a platform 227, a connecting surface 228, a limiting edge 229, a sealing element 230, a yielding part 231 and a fastener 240.

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.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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, a plurality of meanings are more than one, and the terms above, below, within and the like are understood to include the number. The description to first, second, etc. is only for the purpose of distinguishing technical features, and should not be interpreted as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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.

Exhaust passage among traditional battery module comprises last casing, lower casing and sealing member totally three layer construction, encloses synthetic exhaust passage through last casing, lower casing and sealing member, through the support of last casing or lower casing connection battery box, through setting up the discharge valve that communicates electric core in the through-hole butt joint of casing down, realizes exhausting, goes up the casing, adopts high temperature sticky tape to bond down between casing and the sealing member. This structure is too complicated, and thickness is great, and the material is more, is unfavorable for the lightweight of structure, and needs high temperature sticky tape to bond, and the technology is complicated, leads to the cost on the high side.

Compared with the prior art, the embodiment of the utility model provides a battery box has saved casing down, through setting up the gas vent of exhaust entry intercommunication electric core on the support to the setting has the exhaust hood of exhaust chamber and exhaust outlet, and through exhaust chamber intercommunication exhaust entry, exhaust outlet intercommunication exhaust chamber realizes the exhaust of electric core. The sealing element is arranged between the bracket and the exhaust hood to ensure air tightness. The utility model discloses when the battery box can ensure to discharge high-temperature gas, possess the structure of simplifying more to can save materials, simplify technology, effective reduce cost.

Fig. 1 is a schematic perspective view of a battery box 200 according to an embodiment of the present invention, and fig. 2 is a partial structure exploded view of fig. 1, referring to fig. 1 and fig. 2, the battery box 200 includes a support 210, an exhaust hood 220 and a sealing member 230, wherein the support 210 is used for fixing an electric core, and an exhaust inlet 211 is provided corresponding to each electric core, and the exhaust inlet 211 can be butted to an exhaust port of the electric core so as to exhaust gas released by the electric core.

The exhaust hood 220 is detachably connected to the support 210, the exhaust hood 220 is provided with an exhaust cavity 222, the exhaust cavity 222 is communicated with the exhaust inlets 211, the exhaust hood 220 is further provided with an exhaust outlet 221 communicated with the exhaust cavity 222, and the exhaust inlets 211, the exhaust cavities 222 and the exhaust outlet 221 together form an exhaust channel for the power supply core to exhaust outwards. Therefore, the gas released from the battery cell can enter the exhaust cavity 222 through the exhaust inlet 211 and then be exhausted through the exhaust outlet 221.

And the sealing member 230 is positioned between the bracket 210 and the exhaust hood 220 and surrounds the periphery of the exhaust cavity 222, so that the air tightness between the bracket 210 and the exhaust hood 220 is ensured, the air leakage of the exhaust cavity 222 is avoided, and the exhaust performance of an exhaust channel is ensured.

Compared with the scheme conventionally adopted in the field, the embodiment has the advantages that the exhaust inlet 211 is arranged on the bracket 210 and is used for butting the exhaust part (such as an exhaust valve) of the battery cell, so that the exhaust channel is formed only by connecting the exhaust cover 220 and the sealing member 230 to the bracket 210, the integral structure is simplified, for example, a lower shell used for forming the exhaust channel in the conventional scheme is omitted, the thickness is reduced, the material consumption is reduced, the light weight of the battery box 200 is facilitated, the assembly process is simplified, and the cost can be effectively reduced. In addition, the number of structural parts is reduced, the number of required sealing positions can be reduced, and the sealing structure is simplified, so that the air leakage risk is effectively reduced.

Based on the above embodiments, referring to fig. 3, in some embodiments, a concave structure is disposed on a side of the exhaust hood 220 facing the support 210, an exhaust cavity 222 is defined by an inner wall of the concave structure, and after the exhaust hood 220 is connected to the support 210, the concave structure can cover the exhaust inlets 211 therein, so that each exhaust inlet 211 on the support 210 is directly communicated with the exhaust cavity 222, that is, all the exhaust inlets 211 are combined together into the unified exhaust cavity 222 to form a unified air inlet.

A seal 230 surrounds the outer perimeter of the recessed structure to ensure the air tightness of the exhaust cavity 222. The sealing member 230 may be a sealing ring made of a temperature-resistant silica gel material, such as HT800, which has a temperature-resistant range of-60 ℃ to 380 ℃ and a good temperature-resistant characteristic, so as to ensure the connection effectiveness of the sealing member 230.

In some embodiments, the exhaust hood 220 may also be provided with an exhaust cavity 222 inside, in which case, a connection port is provided on the exhaust hood 220 corresponding to each exhaust inlet 211 on the bracket 210, and the exhaust cavity 222 is communicated with the exhaust inlet 211 through the connection port so as to exhaust the gas released inside the battery cell. The sealing member 230 surrounds the connection portion between the exhaust chamber 222 and the exhaust inlet 211, and when the exhaust cover 220 and the bracket 210 are assembled, the exhaust cover 220 and the bracket 210 can be connected through high-temperature adhesive to ensure the air tightness of the exhaust chamber 222.

In some embodiments, the exhaust outlet 221 is correspondingly communicated with the middle of the exhaust cavity 222, so that the high-temperature gas released by each cell can be made to have the shortest distance when flowing out of the module, and the module can be cooled at the fastest speed. The middle of the exhaust chamber 222 is not limited to the position of the geometric center thereof, and may be a position closer to the geometric center thereof with respect to the rim. In specific implementation, the position of the exhaust outlet 221 may be set according to the specific structure of the battery box 200. The exhaust cover 220 is provided with an exhaust joint 223 corresponding to the exhaust outlet 221, and the exhaust joint 223 is provided with a barb 224, so that the stability of pipeline connection can be improved.

Referring to fig. 1, 2 and 4, the dotted line in fig. 4 is used to express the position of the cross section, and in some embodiments, a first connection portion 212 for connecting an exhaust hood 220 is provided on the bracket 210, a second connection portion 225 is provided on the exhaust hood 220 corresponding to the first connection portion 212, and the first connection portion 212 and the second connection portion 225 can be detachably connected to realize the assembly of the exhaust hood 220, thereby forming the exhaust passage. The detachable connection mode can be threaded connection or snap connection. For example, the first connection portion 212 includes a plurality of screw holes 213, the second connection portion 225 includes a plurality of through holes 226 corresponding to the screw holes 213, and the detachable connection of the exhaust hood 220 and the support 210 is achieved by the threaded fasteners 240 passing through the through holes 226 and being screwed into the screw holes 213. The exhaust hood 220 may be provided with a recessed platform 227 corresponding to each through hole 226 at the other side of the support 210, and the through holes 226 are opened at the platform 227, so that the depth of the through holes 226 can be reduced, the overall length of the required fasteners 240 (e.g., screws and bolts) can be reduced, the connection strength can be increased to a certain extent, and the risk of damage to the fasteners 240 can be reduced. In addition, the concave platform 227 can compensate the thickness of the exhaust hood 220, so that the volume of the exhaust cavity 222 can be properly increased, and the gas released by the battery cell can be rapidly exhausted into the exhaust cavity 222.

Referring to fig. 2, in some embodiments, the sealing member 230 is provided with a relief portion 231 for avoiding a connection between the support 210 and the exhaust hood 220, so as to ensure airtightness between the support 210 and the exhaust hood 220. In specific implementation, the sealing member 230 may be an annular sealing ring, and the sealing ring is provided with a yielding portion 231, where the yielding portion 231 includes a curved portion formed on the sealing ring, and the curved portion is used for bypassing a connection portion of the support 210 and the exhaust hood 220. The curved portion protrudes toward the inner side of the sealing ring, so that the installation space can be saved.

Referring to fig. 2, 3 and 6, in some embodiments, a connection surface 228 is disposed on the exhaust hood 220 on a side thereof corresponding to the side to which the seal 230 is connected, and the connection surface 228 is bonded to the seal 230 when assembled. Further, the connecting surface 228 is configured to conform to the surface of the sealing member 230, so that the thickness of the casing of the exhaust hood 220 can be reduced while ensuring effective adhesion of the sealing member 230. The outer periphery of the connection surface 228 is further provided with a raised stopping edge 229, and the stopping edge 229 can enclose the sealing element 230 inside, so that the sealing element 230 is prevented from being displaced during assembly, and the sealing performance of the assembled sealing element 230 is ensured.

Referring to fig. 5, fig. 6, and fig. 7, the embodiment of the present invention further provides a battery module, which includes a battery cell 100 and a battery box 200, where the battery cell 100 has an exhaust port 110, and the battery box 200 accommodates the battery cell 100 inside the battery box 200. The battery box 200 of the present embodiment adopts the battery box 200 of any one of the above embodiments, and therefore, the exhaust inlet 211 on the bracket 210 of the battery box 200 can be correspondingly communicated with the exhaust ports 110 of the battery cells 100, so that the exhaust ports 110 of the battery cells 100 uniformly intake air to the exhaust channel through the exhaust inlet 211 and the exhaust cavity 222, and compared with the conventional scheme in which each battery cell separately intakes air, the flow of air in the exhaust channel is more facilitated, and the exhaust efficiency is improved. Simultaneously, this embodiment battery module's battery box 200 compares in traditional battery box, has reduced the structural component, has simplified the overall structure of battery box, is favorable to the lightweight design of battery module, can simplify the assembly process of battery module simultaneously, practices thrift the cost. In addition, the simplification of the structural part can reduce the positions required to be sealed, simplify the sealing structure and further effectively reduce the risk of air leakage. The utility model discloses a battery module can be applied to among the consumer in a plurality of fields such as car, aircraft, mechanical production equipment for the consumer provides the electric energy, have stronger practicality.

The embodiment of the utility model provides a still provide a consumer (not shown), including the battery module of any above-mentioned embodiment, the battery module is used for the power supply as consumer, consequently, and the consumer also possesses each item advantage of above-mentioned battery module to help simplifying the overall structure and the assembly process of consumer, reduce cost. The electric equipment of the embodiment can be automobiles, aircrafts, mechanical production equipment and the like.

In one embodiment, the electric device is an automobile (not shown), and the battery module is mounted on the automobile as a power battery of the automobile. At present, the safety performance is one of the most important performance indexes of an electric automobile, wherein the stability of a battery module is one of important factors influencing the safety performance of the automobile, and in order to continuously improve the safety performance of the automobile, an exhaust channel is arranged on the battery module, so that the effective safety design is realized, the high-temperature gas generated by the battery can be effectively released, and the fire and explosion caused by the accumulation of temperature can be avoided. Known from the foregoing, exhaust passage among the traditional battery module comprises last casing, lower casing and sealed bubble cotton, and the structure is more complicated, and thickness is great, and the materials are more, and each structure needs high temperature sticky tape to bond, and the technology is complicated, leads to the cost to be on the high side, and is unfavorable for the lightweight of car. The automobile of this embodiment adopts foretell battery module, based on the advantage of above-mentioned battery module, can possess the structure of simplifying more when ensureing the high-temperature gas exhaust automobile body with electric core release, guarantee car security performance, is favorable to the lightweight of automobile to can save materials, simplify technology, effective reduce cost.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims

1. Battery box, its characterized in that for the equipment electricity core includes:

a seal between the bracket and the exhaust hood.

2. The battery box according to claim 1, wherein a side of the exhaust hood facing the holder is provided with a recessed structure, an inner wall of the recessed structure enclosing the exhaust chamber, the recessed structure being capable of housing the exhaust inlets therein, and the sealing member surrounding an outer periphery of the recessed structure.

3. The battery box according to claim 1, wherein the exhaust outlet communicates with a middle portion of the exhaust chamber.

4. The battery box according to claim 1, wherein the bracket is provided with a first connecting portion for connecting the exhaust hood, the exhaust hood is provided with a second connecting portion corresponding to the first connecting portion, and the first connecting portion and the second connecting portion are detachably connected.

5. The battery box according to claim 4, wherein the first connection portion includes a plurality of screw holes, and the second connection portion includes a plurality of through holes corresponding to the screw holes.

6. The battery box according to claim 5, wherein a concave platform is disposed at the other side of the exhaust hood opposite to the support corresponding to each through hole, and the through holes are disposed at the platform.

7. The battery box according to any one of claims 1 to 6, wherein a relief portion is provided on the seal member for avoiding a connection of the holder and the exhaust hood.

8. The battery box of claim 7, wherein the sealing element is an annular sealing ring, the receding portion includes an arc-shaped portion formed on the sealing ring, and the arc-shaped portion is configured to bypass a joint between the support and the exhaust hood.

9. Battery module, its characterized in that includes:

the battery cell is provided with an exhaust port;

the battery box of any one of claims 1 to 8, the cells being housed inside the battery box, the exhaust inlet of the bracket being in communication with the exhaust vent.

10. The electric equipment is characterized by comprising the battery module of claim 9, wherein the battery module is used as a power supply of the electric equipment.