CN209401672U - A kind of battery case - Google Patents
A kind of battery case Download PDFInfo
- Publication number
- CN209401672U CN209401672U CN201821859296.2U CN201821859296U CN209401672U CN 209401672 U CN209401672 U CN 209401672U CN 201821859296 U CN201821859296 U CN 201821859296U CN 209401672 U CN209401672 U CN 209401672U
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- CN
- China
- Prior art keywords
- elastic cushion
- outer rim
- cabinet
- battery case
- interior frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a kind of battery cases, are used for power battery field, including cabinet, have closed inner cavity, and cabinet is equipped with the valve opening for communicating with the outside world inner cavity；Equilibrated valve, including interior frame, elastic cushion and outer rim, elastic cushion waterproof is airtight, and interior frame and outer rim annularly and respectively clamp elastic cushion inside and outside；Equilibrated valve is located on cabinet, and closes valve opening by elastic cushion.Equilibrated valve is set on battery case, and cabinets cavity and extraneous separation are played waterproof action by the elastic cushion of equilibrated valve；The stroke of the elastic cushion of equilibrated valve can change automatically according to temperature with air pressure, using the balance of properties external and internal pressure of its telescopic variation, keep the normal work of electrokinetic cell system；Meanwhile when encountering sharply internal pressure impact, it can rupture in time, prevent from exploding.
Description
Technical field
The utility model is used for power battery field, more particularly to a kind of battery case.
Background technique
New energy car battery case field mainly uses various waterproof vent valves in cabinet at present, to ensure inside and outside battery
The pressure balance in portion, while water being avoided to enter inside Battery case, endanger the safety and durability of battery system.Existing scheme packet
Valve body, film briquetting and breathable films are included, core component is the film of waterproof and breathable, reaches waterproof using the characteristic of film, is put down
Weigh cabinet external and internal pressure and explosion-proof purpose；Since waterproof vent valve waterproofness is effective in certain humidity range, and with anti-
The aging of water breathable films, water-proof breathable properties also gradually decline, and are unfavorable for the reliability of power battery assembly cabinet；Simultaneously because
The waterproof vent valve of profession is substantially that structure is complicated, is equipped with 1~3 layer of waterproof breathable membrane, higher cost.
Utility model content
The purpose of this utility model is to provide a kind of battery cases, can achieve the effect of waterproof vent valve, tie simultaneously
Structure is simple, and durability is good.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of battery case, including
Cabinet, has closed inner cavity, and cabinet is equipped with the valve opening for communicating with the outside world inner cavity；
Equilibrated valve, including interior frame, elastic cushion and outer rim, elastic cushion waterproof is airtight, interior frame and outer rim
It is annular in shape and respectively clamp elastic cushion inside and outside；
Equilibrated valve is located on cabinet, and closes valve opening by elastic cushion.
It is further used as the improvement of technical solutions of the utility model, equilibrated valve further includes the bullet being located on the outside of outer rim
Property pad position limiting structure, elastic cushion position limiting structure be equipped with airflow channel.
It is further used as the improvement of technical solutions of the utility model, elastic cushion position limiting structure includes limited cover, limited cover
Edge and outer rim are cooperatively connected, and heave outward in the middle part of limited cover, and the middle part of limited cover is equipped with hole.
It is further used as the improvement of technical solutions of the utility model, interior frame, elastic cushion, outer rim and limited cover are equipped with
Fastener connecting hole, equilibrated valve are mounted on the outside of cabinet by passing through the fastener of fastener connecting hole.
It is further used as the improvement of technical solutions of the utility model, elastic cushion includes flexible silicon rubber mat.
It is further used as the improvement of technical solutions of the utility model, interior frame has smooth outer end face, and outer rim has
Smooth inner face, elastic cushion is smooth to be assemblied between interior frame and outer rim.
The improvement of technical solutions of the utility model is further used as, filled with nitrogen and/or rare gas in the inner cavity of cabinet.
The utility model has the beneficial effects that equilibrated valve is arranged on battery case, the elastic cushion of equilibrated valve is on the one hand
By cabinets cavity and extraneous separation, waterproof action is played；On the other hand, the stroke of the elastic cushion of equilibrated valve can be according to temperature
Degree changes automatically with air pressure, using the balance of properties external and internal pressure of its telescopic variation, such as can be on low pressure area and cold ground
Area is recessed inwardly by negative pressure；In hyperbar or torrid areas, by positive pressure outwardly convex；To reach balance external and internal pressure
Purpose, keep the normal work of electrokinetic cell system；Meanwhile when encountering sharply internal pressure impact, it can rupture, prevent in time
Explosion.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is the utility model embodiment structural schematic diagram；
Fig. 2 is the utility model equilibrated valve embodiment perspective view；
Fig. 3 is the utility model equilibrated valve embodiment side view；
Fig. 4 is the utility model equilibrated valve embodiment barotropic state schematic diagram；
Fig. 5 is the utility model equilibrated valve embodiment negative pressure state schematic diagram.
Specific embodiment
This part will be described in specific embodiment of the utility model, and the preferred embodiment of the utility model is in the accompanying drawings
It shows, the effect of attached drawing is the description with figure supplementary explanation book word segment, enables a person to intuitively, visually understand originally
The each technical characteristic and overall technical architecture of utility model, but it should not be understood as the limit to scope of protection of the utility model
System.
It is shown in Fig. 1 when if there is being described to direction (inside and outside, upper and lower, left and right, before and after) in the utility model
Structure be with reference to description, but it is merely for convenience of description the technical solution of the utility model, rather than indication or suggestion institute
The technical characteristic of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as practical to this
Novel limitation.
In the utility model, " several " are meant that one or more, and the meaning of " plurality " is two or more, " big
In ", " being less than ", " being more than " etc. be interpreted as not including this number；" more than ", " following ", " within " etc. be interpreted as including this number.At this
In the description of utility model, if there is being described to " first ", " second " be only used for for the purpose of distinguishing technical characteristic, and cannot understand
For indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic or implicitly indicate indicated
The precedence relationship of technical characteristic.
In the utility model, unless otherwise restricted clearly, the words such as " setting ", " installation ", " connection " should do broad sense reason
Solution, for example, it may be connected directly, it can also be indirectly connected through an intermediary；It may be a fixed connection, be also possible to removable
Connection is unloaded, can also be integrated molding；It can be mechanical connection, be also possible to be electrically connected or can communicate with each other；It can be two
The interaction relationship of connection or two elements inside a element.Skilled artisan can be with combination technology scheme
Particular content rationally determine the concrete meaning of above-mentioned word in the present invention.
Referring to Fig. 1-Fig. 5, the utility model provides a kind of battery case, including
Cabinet 1, has closed inner cavity, and cabinet 1 is equipped with the valve opening for communicating with the outside world inner cavity；
Equilibrated valve 2, including interior frame 21, elastic cushion 22 and outer rim 23,22 waterproof of elastic cushion is airtight, interior frame
21 and outer rim 23 it is annular in shape and respectively clamp elastic cushion 22 inside and outside；
Equilibrated valve 2 is located on cabinet 1, and closes valve opening by elastic cushion 22.
Equilibrated valve 2, the elastic cushion 22 of equilibrated valve 2 is arranged on battery case for holding battery in the inner cavity of cabinet 1
On the one hand by 1 inner cavity of cabinet and extraneous separation, waterproof action is played；On the other hand, the elastic cushion 22 of equilibrated valve 2 is flexible
Amount can change automatically according to temperature with air pressure, using the balance of properties external and internal pressure of its telescopic variation, such as can in low pressure
Area and cold district, are recessed inwardly by negative pressure；In hyperbar or torrid areas, by positive pressure outwardly convex；To reach flat
The purpose of weighing apparatus external and internal pressure, keeps the normal work of electrokinetic cell system；Meanwhile when encountering sharply internal pressure impact, Neng Gouji
When rupture, prevent from exploding.
In certain embodiments, equilibrated valve 2 further includes the elastic cushion position limiting structure for being located at 23 outside of outer rim, elasticity
It padding position limiting structure and is used for restrained deformation amount, avoid mutation damage elastic cushion 22, elastic cushion position limiting structure is equipped with airflow channel, with
Guarantee that elastic cushion 22 smooth can deform in reasonable deformation range.
Elastic cushion position limiting structure is using grid, filter, baffle etc., and in certain embodiments, elastic cushion position limiting structure includes
Limited cover 24, the edge and outer rim 23 of limited cover 24 are cooperatively connected, and 24 middle part of limited cover is heaved outward, the middle part of limited cover 24
Equipped with hole, to guarantee that elastic cushion 22 smooth can deform in reasonable deformation range.
Interior frame 21 and outer rim 23 can be, but not limited in polygonal ring shape or circular annular form, and equilibrated valve 2 passes through
The modes such as glue, fastener, buckle are connect with cabinet 1, in certain embodiments, interior frame 21, elastic cushion 22, outer rim 23 and limit
Position lid 24 is equipped with fastener connecting hole, and equilibrated valve 2 is mounted on outside cabinet 1 by passing through the fastener of fastener connecting hole
Side.For example, interior frame 21, elastic cushion 22, outer rim 23 and limited cover 24 are in rectangle, screw hole 25 is arranged in the quadrangle of rectangle,
Equilibrated valve 2 is mounted on 1 inner or outer side of cabinet by passing through four screws of screw hole 25.
Elastic cushion 22 can be, but not limited to flexible silicon rubber mat using the air-locked material molding of waterproof, elastic cushion 22.Its is right
Battery occurs to melt automatically when thermal runaway, has the function that release stress explosion-proof.
Interior frame 21, outer rim 23 are bonded with elastic cushion 22 by plane, corrugated surface, serrated face, in certain embodiments,
Interior frame 21 have smooth outer end face, outer rim 23 have smooth inner face, elastic cushion 22 it is smooth be assemblied in interior frame
Between 21 and outer rim 23, stress is avoided to concentrate and elastic cushion 22 is caused to be damaged in deformation.
In certain embodiments, filled with nitrogen and/or rare gas in the inner cavity of cabinet 1.It prevents battery from getting rusty, shortens dynamic
The creepage distance of the component of the high-voltage electrical apparatus of power battery assembly；The final reliability for promoting battery pack.
Certainly, the invention is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent deformation or replacement can be also made under the premise of utility model spirit, these equivalent variation or replacement are all contained in the application
In claim limited range.
Claims (7)
1. a kind of battery case, it is characterised in that: including
Cabinet, has closed inner cavity, and cabinet is equipped with the valve opening for communicating with the outside world inner cavity；
Equilibrated valve, including interior frame, elastic cushion and outer rim, elastic cushion waterproof is airtight, and interior frame and outer rim are in
Ring-type simultaneously respectively clamps elastic cushion inside and outside；
Equilibrated valve is located on cabinet, and closes valve opening by elastic cushion.
2. battery case according to claim 1, it is characterised in that: equilibrated valve further includes the bullet being located on the outside of outer rim
Property pad position limiting structure, elastic cushion position limiting structure be equipped with airflow channel.
3. battery case according to claim 2, it is characterised in that: elastic cushion position limiting structure includes limited cover, limited cover
Edge and outer rim are cooperatively connected, and heave outward in the middle part of limited cover, and the middle part of limited cover is equipped with hole.
4. battery case according to claim 3, it is characterised in that: interior frame, elastic cushion, outer rim and limited cover are equipped with
Fastener connecting hole, equilibrated valve are mounted on the outside of cabinet by passing through the fastener of fastener connecting hole.
5. battery case according to claim 1, it is characterised in that: elastic cushion includes flexible silicon rubber mat.
6. battery case according to claim 1, it is characterised in that: interior frame has smooth outer end face, and outer rim has
Smooth inner face, elastic cushion is smooth to be assemblied between interior frame and outer rim.
7. battery case according to claim 1, it is characterised in that: filled with nitrogen or rare gas in the inner cavity of cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859296.2U CN209401672U (en) | 2018-11-12 | 2018-11-12 | A kind of battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859296.2U CN209401672U (en) | 2018-11-12 | 2018-11-12 | A kind of battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209401672U true CN209401672U (en) | 2019-09-17 |
Family
ID=67879693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821859296.2U Active CN209401672U (en) | 2018-11-12 | 2018-11-12 | A kind of battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209401672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072033A (en) * | 2020-09-16 | 2020-12-11 | 广东博力威科技股份有限公司 | Battery structure and manufacturing method thereof |
-
2018
- 2018-11-12 CN CN201821859296.2U patent/CN209401672U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072033A (en) * | 2020-09-16 | 2020-12-11 | 广东博力威科技股份有限公司 | Battery structure and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHAOQING XIAOPENG AUTOMOBILE Co.,Ltd. Assignor: GUANGZHOU XPENG AUTOMOBILE TECHNOLOGY Co.,Ltd. Contract record no.: X2020440000168 Denomination of utility model: A battery box Granted publication date: 20190917 License type: Common License Record date: 20210104 |
|
| EE01 | Entry into force of recordation of patent licensing contract |