CN202905819U - Waterproof device for power battery packs - Google Patents
Waterproof device for power battery packs Download PDFInfo
- Publication number
- CN202905819U CN202905819U CN2012205313206U CN201220531320U CN202905819U CN 202905819 U CN202905819 U CN 202905819U CN 2012205313206 U CN2012205313206 U CN 2012205313206U CN 201220531320 U CN201220531320 U CN 201220531320U CN 202905819 U CN202905819 U CN 202905819U
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- CN
- China
- Prior art keywords
- power battery
- vent hose
- box body
- casing
- battery pack
- 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.)
- Expired - Fee Related
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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 waterproof device for power battery packs, which comprises a box body for installing batteries, and the edge of the box body is provided with a metal ventilating hose communicated with the inner cavity of the box body. According to the device, through a reasonable structure improvement, especially through the cooperation of the box body and the metal ventilating hose, compared with the previous design of directly using an exhaust fan, water is difficult to enter the waterproof device from the box body, so that effects of waterproof short-circuiting and short-circuited fire prevention can be achieved, and good heat dissipation, pressure relief and explosion prevention effects also can be achieved; and the waterproof device is simple in structure, simple in process, easy to implement mass production, wide in application range, and long in service life.
Description
Technical field
The utility model relates to field of batteries, particularly a kind of water-tight device for power battery pack.
Background technology
Along with becoming increasingly conspicuous of environmental problem, low-carbon economy has become the main flow of economic development, and hybrid vehicle and electric automobile have also obtained vast production firm and consumer's approval gradually as the representative of new-energy automobile.Power battery pack is widely used at present as the main power source of new-energy automobile, and also is the emphasis of electric automobile research as the power battery pack of electric motor car heart.
Power battery pack is by some cells serial or parallel connection in a different manner, then through clamping, fixedly forming.Because himself characteristics and application scenario are more special, the user is very strict to the requirement of the aspects such as its capacity, multiplying power, reliability and fail safe.At present, electrokinetic cell or the lithium ion series battery of volume production can be accepted, be fit to high power capacity and good rate capability, cost, such as LiFePO4, lithium titanate, nickle cobalt lithium manganate etc.But lithium ion battery is all water funk, and battery core inside can not intake; The battery module unit can not intake equally, otherwise just has short circuit and then danger on fire from explosion.Therefore, waterproof is the basic demand to the fail safe of power battery pack.In addition, battery can produce heat when discharging and recharging work; If untimely heat radiation, power battery pack can't work.More air-cooled in the industry at present, provided with fan on outer container so just is difficult to accomplish water-tight; And fan is installed in the bottom of outer container, and the ponding in the compartment is easy to flow into from the fan mouth.Like this, just unavoidable the appearance conflicts for heat radiation and two requirements of waterproof.
General VOLT event on fire and BYD 5.26 electric motor cars event on fire are told us: the on fire and dangerous of electric motor car is the bottleneck of electric motor car development.Prior art is mostly for the waterproof sealing of power cell, for the technology such as waterproof anti-explosion of power battery pack seldom.As novel power battery pack, be necessary to eliminate these potential safety hazards, but also will guarantee that operation is enough simple, technique is uncomplicated, can realize low-cost volume production.In view of this, necessaryly provide a kind of power battery pack waterproof scheme and heat abstractor with Good Security.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of power battery pack group water-tight device with Good Security.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of power battery pack water-tight device comprises that described casing edge is provided with the metal vent hose that is communicated with cabinets cavity for the casing that battery is installed.
In order to make things convenient for operation and maintenance, be provided with active joint between described metal vent hose and the casing, the metal vent hose of conveniently choosing.
In order to prevent that further extraneous water and steam from entering inside, described metal vent hose is built-in with waterproof ventilated membrane.
In order to make things convenient for the metal vent hose flexible, the shape of described metal vent hose is designed to the expansion corrugated pipe shape.
As a preference, the thickness of described metal vent hose is 0.02～2mm.
As a preference, described casing edge is provided with projection, and described metal vent hose is positioned at the upper end of projection.
The beneficial effects of the utility model are: this device is by rational architecture advances, particularly match by casing and metal vent hose, compare over directly design with ventilating fan, shipwreck can play waterproof short circuit, short circuit fire prevention to enter from casing, also play simultaneously the effect of fine heat radiation and pressure-relief explosion-proof, and simple in structure, technique is simple, is easy to realize volume production, the scope of application is wide, long service life.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the stereogram of the utility model metal vent hose.
Embodiment
With reference to Fig. 1, Fig. 2.A kind of power battery pack water-tight device comprises that described casing 1 edge is provided with the metal vent hose 2 that is communicated with casing 1 inner chamber for the casing 1 that battery is installed, and metal vent hose 2 can play the effect of ventilation in fluid-tight situation.As one of them embodiment, described casing 1 edge is provided with projection 2, described metal vent hose 2 is positioned at the upper end of projection 2, the waterproof effect of this design is relatively more superior, but in fact local the adjustment can be done according to actual conditions in the concrete installation site of metal vent hose 2, do not affect its waterproof effect.
Wherein metal vent hose 2 comprises head 21, main body 22 and afterbody 23.The main body 22 of metal vent hose 2 is built-in with waterproof ventilated membrane, allows cold and hot air free to see through and can stop vapor transmission simultaneously.The cold air of casing 1 outside can exchange with the hot-air convection of casing 1 inside simultaneously, plays the effect of casing 1 cooling.Under the operating mode extreme case, to cross such as over-charging of battery and to put short circuit etc., casing 1 inside produces thick smoke, high-temperature gas etc., can get rid of from metal vent hose 2, can play the fire-proof and explosion-proof passage of casing 1.
The head 21 of metal vent hose 2 is provided with screwed hole 24, is used for being connected with body part 5.The shape that the main body 22 of metal vent hose 2 is is designed to the expansion corrugated pipe shape, can be the raw material such as fine copper, fine aluminium, and its surfaces externally and internally is equipped with anticorrosive coat, such as anticorrosion enamelled coating, nickel plating etc.In case of necessity, can according to the intensity of the preserving timber bed of material that coats, suitably adjust the thickness of material of main part metal level, to reach the mechanical strength of expectation, wherein the Thickness Design of metal vent hose 2 is 0.02～2mm, crosses thin meeting and makes undercapacity, blocked uply can affect radiating effect again.In addition, flexible pipe can be used silicon rubber, and the materials such as Teflon replace.Afterbody 23 is provided with screw thread or buckle, can freely be connected with the steam vent of projection 4 upper ends at casing 1 edge by active joint 3; The middle part is provided with pellicle, allows cold and hot air free to see through, and can stop vapor transmission, plays the effect of duplicate protection.
When actual installation, the head 21 of metal vent hose 2 can adopt the mode of nut+screw rod+sealing gasket to lock with the installing hole of body part 5; The afterbody 22 of metal vent hose 2 and the air inlet of casing 1, the mode of employing active joint 3 guarantees water-tight the getting final product of sealing.The head 21 of metal vent hose 2 is provided with the installing hole 24 that is connected with body part 5, and the metal vent hose 2 that centers on installing hole 24 is provided with flange face.Be equiped with several installing holes on the flange face, size is corresponding with the size of the installing hole of body part 5, and madial wall is provided with internal thread.During installation, at first, metal vent hose 2 is placed on the body part 5, the installing hole on the flange face aligns with the installing hole of body part 5; Secondly, screw rod is placed in the middle of two holes, then, adopt nut, plain cushion, sealing gasket also to tighten.
In addition, the mode that metal vent hose 2 also can directly stick with glue or weld is installed with casing 1 and body part 5 sealings.
Through experiment and actual use checking, with respect to prior art, water-tight device of the present utility model has the following advantages: structure and technique are simple, are easy to realize volume production; Waterproof and radiating effect are desirable, and cost is low, and the life-span is long, and maintenance is convenient, and the scope of application is wide, is suitable in various power battery pack and technical large-scale popularization.
Claims (6)
1. a power battery pack water-tight device comprises that it is characterized in that: described casing (1) edge is provided with the metal vent hose (2) that is communicated with casing (1) inner chamber for the casing (1) that battery is installed.
2. a kind of power battery pack water-tight device according to claim 1 is characterized in that: be provided with active joint (3) between described metal vent hose (2) and the casing (1).
3. a kind of power battery pack water-tight device according to claim 1, it is characterized in that: described metal vent hose (2) is built-in with waterproof ventilated membrane.
4. a kind of power battery pack water-tight device according to claim 1, it is characterized in that: the shape of described metal vent hose (2) is designed to the expansion corrugated pipe shape.
5. a kind of power battery pack water-tight device according to claim 1, it is characterized in that: the thickness of described metal vent hose (2) is 0.02～2mm.
6. a kind of power battery pack water-tight device according to claim 1, it is characterized in that: described casing (1) edge is provided with projection (4), and described metal vent hose (2) is positioned at the upper end of projection (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205313206U CN202905819U (en) | 2012-10-17 | 2012-10-17 | Waterproof device for power battery packs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205313206U CN202905819U (en) | 2012-10-17 | 2012-10-17 | Waterproof device for power battery packs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905819U true CN202905819U (en) | 2013-04-24 |
Family
ID=48126448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205313206U Expired - Fee Related CN202905819U (en) | 2012-10-17 | 2012-10-17 | Waterproof device for power battery packs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329018A (en) * | 2016-11-23 | 2017-01-11 | 北京新能源汽车股份有限公司 | Power battery sealing management device and car |
-
2012
- 2012-10-17 CN CN2012205313206U patent/CN202905819U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329018A (en) * | 2016-11-23 | 2017-01-11 | 北京新能源汽车股份有限公司 | Power battery sealing management device and car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20181017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |