CN203110946U - Battery pack combustion-proof device - Google Patents
Battery pack combustion-proof device Download PDFInfo
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- CN203110946U CN203110946U CN2013200633984U CN201320063398U CN203110946U CN 203110946 U CN203110946 U CN 203110946U CN 2013200633984 U CN2013200633984 U CN 2013200633984U CN 201320063398 U CN201320063398 U CN 201320063398U CN 203110946 U CN203110946 U CN 203110946U
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- power brick
- valve
- shell
- inertia
- admission port
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a battery pack combustion-proof device. A carbon dioxide bottle (2) and an inertia valve (3) are mounted on the top of a battery pack body (1), a gas outlet of the carbon dioxide bottle (2) is connected with a gas inlet of the inertia valve (3) through a first high-pressure tube (4), a gas outlet of the inertia valve (3) is connected with one end of a second high-pressure tube (5), the other end of the second high-pressure tube (5) is communicated with the inside of a shunt tube (6), the shunt tube (6) is arranged inside the battery pack body (1), and a plurality of spraying holes (6a) are formed in the tube wall of the shunt tube (6) in the length direction of the shunt tube (6). According to the battery pack combustion-proof device, when extreme cases such as electric vehicle crashes happen, the battery pack is inflated with carbon dioxide within seconds after the crash, therefore, the combustion of the battery pack caused by collision of vehicles is prevented effectively, the safety of the battery pack, the electric vehicle and people are guaranteed, and the popularization and application of the electric vehicles are benefited.
Description
Technical field
The utility model belongs to the electric vehicle engineering field, specifically, and the particularly power brick on the electronlmobil.
Background technology
At present, new-energy automobile is becoming the exploitation of exploitation focus, particularly pure electric automobile, has become the emphasis of new-energy automobile exploitation, and each big automobile enterprise all researches and develops dropping into huge fund.Electronlmobil is a kind of new vehicle, and its safety problem is noticeable especially.Because technology still in period of expansion, the situation that electronlmobil burns because of collision also occurred.Therefore, how realizing power brick safety, fire prevention, anticreep, is just to make great efforts the technical matters that solves in the industry.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of anti-burning device of power brick that can prevent burning.
The technical solution of the utility model is as follows: the anti-burning device of a kind of power brick, comprise power brick body (1), dioxide bottle (2) and inertia valve (3) are installed in top at described power brick body (1), the air extractor duct of described dioxide bottle (2) is connected with the admission port of inertia valve (3) by first high-pressure pipe (4), the air extractor duct of inertia valve (3) is connected with an end of second high-pressure pipe (5), the internal communication of the other end of described second high-pressure pipe (5) and isocon (6), this isocon (6) is arranged in the power brick body (1), and its length direction has a plurality of injection holes (6a) in the tube wall upper edge of isocon (6).
Adopt above technical scheme, inertia valve is normally off, before electronlmobil takes place, bump or after when bumping, the acceleration/accel that collision produces surpasses setting value, inertia valve is opened automatically, carbon dioxide in the dioxide bottle is entered in the inertia valve by first high-pressure pipe, air extractor duct from inertia valve flows to isocon by second high-pressure pipe then, spray into intrinsic each space of power brick by the injection hole on the isocon at last, got rid of the intrinsic oxygen of power brick like this, reached fire extinguishing, prevent the purpose that power brick is burnt.Because what spray into is carbon dioxide, can not cause electronic unit and electrokinetic cell damage in the power brick, can not produce electric leakage yet, safety is secure.
Described inertia valve (3) has shell (3a), set out gas port (3c) in the rear end of shell (3a), one end of shell (3a) left and right directions is offered admission port, this admission port is communicated with the inner chamber of shell (3a), and spool (12) is housed in the admission port, and described spool (12) is by cam (7) control, and this cam (7) kink is on mandrel (8), and cam (7) is connected with inertia hammer (10) by connecting rod (9), and described inertia hammer (10) is by permanent magnets (11) the absorption location of the interior setting-in of shell (3a).
When above structure was normally travelled at electronlmobil, inertia hammer mediated, and relied on the magnetic force location by permanent magnet.The normal acceleration and deceleration inertia hammer of vehicle can not produce motion, when having only acceleration/accel to surpass restriction, be that electronlmobil is when fierce collision takes place, no matter before bump or after bump, inertia hammer rotates forward or backward around mandrel under the effect of force of inertia, and the drive cam rotates together, when cam rotated, the compressing mandrel was the air inlet open of valve, made high pressure gas enter inertia valve rapidly and flowed to power brick.This shows that inertia valve is not only simple in structure, assembling is easy, and just can open ventilation in needs, and performance is very reliable.
The inner of described spool (12) is stretched in the inner chamber of shell (3a), and connect with cam (7), the outer end of spool (12) is stretched in the joint (13), and with an end butt of cone-shaped spring (14), annular boss on the other end of described cone-shaped spring (14) and joint (13) inwall connects, joint (13) and shell (3a) screw thread fit.Above structure is being active in one's movements of spool response cam on the one hand, and on the other hand, spool leans the end at cam under the effect of cone-shaped spring, and the inertia hammer of the cam other end is adsorbed by permanent magnet, can further improve the reliability of inertia hammer and cam orientation.
Described permanent magnets (11) is column structure, and be positioned at the top of inertia hammer (10), permanent magnets (11) is flush-mounted in the circular chamber that arranges in the shell (3a), the end face of described permanent magnets (11) and cushion (14) are fitted, the bottom surface of permanent magnets (11) is the up big and down small conical surface, and this conical surface embeds in the corresponding awl groove that arranges of inertia hammer (10) end face.Above structure inertia hammer is when being subjected to permanent magnets magnetic force location, also be subjected to the gravity of permanent magnets and the elastic force that cushion provides, and pass through cone match between permanent magnets and the inertia hammer, guaranteed that like this inertia hammer location is reliable, inertia valve remains normally closed when making normal vehicle operation or slight impact.
Be formed with positioning table (3b) in the inside of described shell (3a), described spool (12) passes from this positioning table (3b), and towards the end face of cam (7) former and later two cushion blockings (15) is housed at positioning table (3b).Cushion blocking plays bumper and absorbing shock, and inertia hammer directly clashes into shell and causes inertia valve to damage when colliding to avoid being subjected to fierceness.
After high-pressure carbon dioxide gas enters the power brick body, can make power brick body internal pressure increase and damage power brick.Not too high for guaranteeing the pressure in the power brick, at the place, four angles at described power brick body (1) top safety valve (16) is housed, surpass specified value when wrapping internal gas pressure, safety valve is opened, and drains oxygen in the bag, and in can keeping wrapping enough carbon dioxides is arranged.
Described safety valve (16) is by valve body (17), valve rod (18), seal ring (19), spring (20) and block (21) constitute, described valve body (17) is the hollow sleeve structure, the opposite side at this valve body (17) middle part has leakage port (22), the bottom of described valve body (17) embeds and is fixed in the top of power brick body (1), the top of valve body (17) is sealed by block (21), valve rod (18) is set in described valve body (17), the upper end of this valve rod (18) is stretched in the central through hole of block (21), valve rod (18) and block (21) bearing fit, at the bottom of valve rod (18) suit seal ring (19), sealing circle (19) is spacing by the annular table terrace in the valve body (17) downwards, go up pocketed springs (20) at described valve rod (18), the upper end of this spring (20) and block (21) butt, the step butt on the lower end of spring (20) and the valve rod (18).
When above structure surpassed specified value when the power brick internal pressure, the gas in the power brick upwards promoted seal ring, makes seal ring and valve rod overcome the elastic force upward movement of spring, and gas can enter in the valve body like this, and discharged outside the power brick by leakage port.Under the effect of recoil of spring power, seal ring resets downwards after the pressure release, again safety valve is closed.This shows that safety valve is not only simple in structure, response is sensitive, reliable, and can guarantee that the power brick internal pressure is controlled, is damaged to avoid power brick.Valve rod and block bearing fit play guiding, make seal ring only in the above-below direction motion, thereby have further improved the reliability that safety valve opens and closes.
Install for the ease of block, and it is firm that block is connected, the lower end of described block (21) embeds in the valve body (17), both screws thread fit.
As preferably, described spring (20) is cone-shaped spring, and good stability unstable phenomenon can not take place like this.
The rear portion of described isocon (6) arranges admission port, and this admission port is connected with second high-pressure pipe (5) by adaptor union, the direction from this admission port toward isocon (6) end, and the diameter of injection hole (6a) increases gradually.It is more even in the power brick, smooth that above structure makes that gas sprays into by injection hole, improved the speed of self-extinguishing like this, safer, reliable.
Beneficial effect: the utility model is under electronlmobil such as bumps at extreme case, can in the back several seconds takes place in collision, carbon dioxide be full of power brick, thereby the power brick that has effectively prevented from causing because of vehicle collision burning, ensured power brick, electronlmobil and safety of persons, had simple in structure, with low cost, response fast, good reliability, characteristics such as self-extinguishing are conducive to applying of electronlmobil.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the structural representation of inertia valve.
Fig. 4 is the lateral plan of Fig. 3.
Fig. 5 is the structural representation of safety valve.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1 and Figure 2, power brick body 1 is made up of clad and inclusion, and clad and inclusion are rectangle, and clad is positioned at the top of inclusion, and both are interlocked fixing, the confined space that composition can ccontaining electrokinetic cell.The end face of described clad is low early and high after step surface, at the low terrace at clad top dioxide bottle 2 and inertia valve 3 is installed, and dioxide bottle 2 is positioned at the place ahead of inertia valve 3.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, inertia valve 3 is made of shell 3a, cam 7, mandrel 8, connecting rod 9, inertia hammer 10, permanent magnets 11, spool 12, joint 13, cushion 14 and cushion blocking 15 etc.Set out gas port 3c in the rear end of shell 3a, this air extractor duct 3c is communicated with the inner chamber of shell 3a.One end of shell 3a left and right directions is offered admission port, and this admission port is communicated with the inner chamber of shell 3a, and is fitted with joint 13 in the admission port, described joint 13 and shell 3a screw thread fit, and joint 13 is connected with the air extractor duct of dioxide bottle 2 by first high-pressure pipe 4.The inside one of the inwall at described shell 3a admission port place is extended, and forms positioning table 3b in shell 3a.The spool 12 that control shell 3a admission port opens and closes is installed in the admission port, and the outer end of spool 12 is stretched in the joint 13, and with an end butt of cone-shaped spring 14, the annular boss on the other end of cone-shaped spring 14 and joint 13 inwalls connects.The inner of spool 12 is passed from positioning table 3b, and connects with the side face of cam 7.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, cam 7 kinks are on mandrel 8, and cam 7 can rotate around mandrel 8, and the two ends of mandrel 8 are fixed on the shell 3a.The side face of described cam 7 is connected with the periphery of cylindrical inertia hammer 10 by connecting rod 9, and under the drive of cam 7, inertia hammer 10 can rotate forward or backward.Respectively have two cushion blockings 15 altogether at described positioning table 3b before and after the end face of cam 7 is equipped with, this cushion blocking 15 is positioned at the position that inertia hammer 10 rotates back bump positioning table 3b, plays bumper and absorbing shock.By permanent magnets 11 absorption location, live apart in the both sides of cam 7 with spool 12 when inertia hammer 10 is initial when described inertia hammer 10 is initial.Described permanent magnets 11 is column structure, and is positioned at the top of inertia hammer 10.Permanent magnets 11 is flush-mounted in the circular chamber that arranges in the shell 3a, and can freely rotate.The end face of permanent magnets 11 and cushion 14 are fitted, and the bottom surface of permanent magnets 11 is the up big and down small conical surface, and this conical surface embeds in the corresponding awl groove that arranges of inertia hammer 10 end faces.
As Fig. 1, Fig. 2, shown in Figure 3, in power brick body 1, be installed with isocon 6, the fore-and-aft direction of the length direction of this isocon 6 and power brick body 1 in the same way, and upwards 90 ° of bendings of the rear end of isocon 6, the bending segment of isocon 6 rear ends is positioned at the back space of clad.Rear portion at isocon 6 arranges admission port, and this admission port is connected by the end of adaptor union with second high-pressure pipe 5, and the other end of second high-pressure pipe 5 is connected with the air extractor duct 3c of inertia valve 3.Its length direction has a plurality of injection hole 6a in the tube wall upper edge of described isocon 6, and the spacing of the number of injection hole 6a and adjacent injection hole 6a is determined according to actual needs.Be the boundary with the admission port on the isocon 6, the direction from this admission port toward end, isocon 6 two ends, the diameter of injection hole 6a increases gradually.
As Fig. 2, shown in Figure 5, at the place, four angles at power brick body 1 top safety valve 16 is housed all.Described safety valve 16 is made of valve body 17, valve rod 18, seal ring 19, spring 20 and the parts such as 21 of blocking a shot, and wherein, valve body 17 is the hollow sleeve structure, and the opposite side at these valve body 17 middle parts has leakage port 22.Be processed with outside thread on the outer wall of described valve body 17 lower ends, the bottom of valve body 17 embeds the top of power brick body 1, both screws thread fit.The top of valve body 17 is sealed by block 21, and the lower end of block 21 embeds in the valve body 17, both screws thread fit.In described valve body 17 valve rod 18 is set, the upper end of this valve rod 18 is stretched in the central through hole of block 21, valve rod 18 and block 21 bearing fits.At the bottom of valve rod 18 suit seal ring 19, sealing circle 19 is spacing by the annular table terrace in the valve body 17 downwards, pocketed springs 20 on described valve rod 18, and this spring 20 is preferably cone-shaped spring, the upper end of spring 20 and block 21 butts, the step butt on the lower end of spring 20 and the valve rod 18.
Principle of work of the present utility model is as follows:
Store high-pressure carbon dioxide gas in the dioxide bottle 2, inertia valve 3 is in normally off.Inertia hammer 10 mediates, and by permanent magnet 11 location.The normal acceleration and deceleration inertia hammer 10 of vehicle can not produce motion, when having only acceleration/accel to surpass restriction (value of setting), be that electronlmobil is when fierce collision takes place, no matter before bump or after bump, inertia hammer 10 is under the effect of force of inertia, inertia hammer 10 conical surfaces promote the elastic force that permanent magnets 11 overcomes magnetic force and cushion 14, inertia hammer 10 rotates forward or backward around mandrel 8 like this, and pass through connecting rod 9 drive cams 7 and rotate together, when cam 7 rotates, compressing mandrel 12 is with the air inlet open of valve, carbon dioxide in the dioxide bottle 2 is entered in the inertia valve 3 by first high-pressure pipe 4, air extractor duct 3c from inertia valve 3 flows to isocon 6 by second high-pressure pipe 5 then, spray into each space in the power brick body 1 by the injection hole 6a on the isocon 6 at last, get rid of the oxygen in the power brick body 1 like this, reached fire extinguishing, prevent the purpose of power brick burning.
After high-pressure carbon dioxide gas enters power brick body 1, can make power brick body 1 internal pressure increase, when the power brick internal pressure surpasses specified value, gas in the power brick upwards promotes the seal ring 19 of safety valve 16, make seal ring 19 and valve rod 18 overcome the elastic force upward movement of spring 20, gas can enter in the valve body 17 like this, and discharges outside the power brick by leakage port 22.Under the effect of spring 20 screen resiliences, seal ring 19 resets downwards after the pressure release, again safety valve 16 is closed, and makes and maintains enough carbon dioxides in the power brick.
Although below by reference to the accompanying drawings preferred embodiment of the present utility model is described; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic rather than determinate; those of ordinary skill in the art is under enlightenment of the present utility model; under the prerequisite of the utility model aim and claim; can make multiple similar expression; as change inertia valve or/and the structure of safety valve; perhaps change the number of injection hole and size etc., such conversion all falls within the protection domain of the present utility model.
Claims (10)
1. anti-burning device of power brick, comprise power brick body (1), it is characterized in that: dioxide bottle (2) and inertia valve (3) are installed in the top at described power brick body (1), the air extractor duct of described dioxide bottle (2) is connected with the admission port of inertia valve (3) by first high-pressure pipe (4), the air extractor duct of inertia valve (3) is connected with an end of second high-pressure pipe (5), the internal communication of the other end of described second high-pressure pipe (5) and isocon (6), this isocon (6) is arranged in the power brick body (1), and its length direction has a plurality of injection holes (6a) in the tube wall upper edge of isocon (6).
2. the anti-burning device of power brick according to claim 1, it is characterized in that: described inertia valve (3) has shell (3a), set out gas port (3c) in the rear end of shell (3a), one end of shell (3a) left and right directions is offered admission port, this admission port is communicated with the inner chamber of shell (3a), and spool (12) is housed in the admission port, described spool (12) is controlled by cam (7), this cam (7) kink is on mandrel (8), and cam (7) is connected with inertia hammer (10) by connecting rod (9), and described inertia hammer (10) is by permanent magnets (11) the absorption location of the interior setting-in of shell (3a).
3. the anti-burning device of power brick according to claim 2, it is characterized in that: the inner of described spool (12) is stretched in the inner chamber of shell (3a), and connect with cam (7), the outer end of spool (12) is stretched in the joint (13), and with an end butt of cone-shaped spring (14), annular boss on the other end of described cone-shaped spring (14) and joint (13) inwall connects, joint (13) and shell (3a) screw thread fit.
4. according to claim 2 or the anti-burning device of 3 described power brick, it is characterized in that: described permanent magnets (11) is column structure, and be positioned at the top of inertia hammer (10), permanent magnets (11) is flush-mounted in the circular chamber that arranges in the shell (3a), the end face of described permanent magnets (11) and cushion (14) are fitted, the bottom surface of permanent magnets (11) is the up big and down small conical surface, and this conical surface embeds in the corresponding awl groove that arranges of inertia hammer (10) end face.
5. the anti-burning device of power brick according to claim 3, it is characterized in that: be formed with positioning table (3b) in the inside of described shell (3a), described spool (12) passes from this positioning table (3b), and towards the end face of cam (7) former and later two cushion blockings (15) is housed at positioning table (3b).
6. according to claim 1 or 2 or the 3 or 5 anti-burning devices of described power brick, it is characterized in that: safety valve (16) is equipped with at the place, four angles at described power brick body (1) top.
7. the anti-burning device of power brick according to claim 6, it is characterized in that: described safety valve (16) is by valve body (17), valve rod (18), seal ring (19), spring (20) and block (21) constitute, described valve body (17) is the hollow sleeve structure, the opposite side at this valve body (17) middle part has leakage port (22), the bottom of described valve body (17) embeds and is fixed in the top of power brick body (1), the top of valve body (17) is sealed by block (21), valve rod (18) is set in described valve body (17), the upper end of this valve rod (18) is stretched in the central through hole of block (21), valve rod (18) and block (21) bearing fit, at the bottom of valve rod (18) suit seal ring (19), sealing circle (19) is spacing by the annular table terrace in the valve body (17) downwards, go up pocketed springs (20) at described valve rod (18), the upper end of this spring (20) and block (21) butt, the step butt on the lower end of spring (20) and the valve rod (18).
8. the anti-burning device of power brick according to claim 7 is characterized in that: the lower end of described block (21) embeds in the valve body (17), both screws thread fit.
9. according to claim 7 or the anti-burning device of 8 described power brick, it is characterized in that: described spring (20) is cone-shaped spring.
10. according to claim 1 or 2 or 3 or 5 or the 7 or 8 anti-burning devices of described power brick, it is characterized in that: the rear portion of described isocon (6) arranges admission port, this admission port is connected with second high-pressure pipe (5) by adaptor union, direction from this admission port toward isocon (6) end, the diameter of injection hole (6a) increases gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200633984U CN203110946U (en) | 2013-02-04 | 2013-02-04 | Battery pack combustion-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200633984U CN203110946U (en) | 2013-02-04 | 2013-02-04 | Battery pack combustion-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203110946U true CN203110946U (en) | 2013-08-07 |
Family
ID=48891321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200633984U Expired - Fee Related CN203110946U (en) | 2013-02-04 | 2013-02-04 | Battery pack combustion-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203110946U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208602A (en) * | 2013-02-04 | 2013-07-17 | 力帆实业(集团)股份有限公司 | Self-extinguishing battery pack for electric automobile |
| CN112208332A (en) * | 2020-10-13 | 2021-01-12 | 赵平平 | Battery compartment throwing-off structure of battery-replacing type electric automobile |
-
2013
- 2013-02-04 CN CN2013200633984U patent/CN203110946U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208602A (en) * | 2013-02-04 | 2013-07-17 | 力帆实业(集团)股份有限公司 | Self-extinguishing battery pack for electric automobile |
| CN103208602B (en) * | 2013-02-04 | 2015-04-08 | 力帆实业(集团)股份有限公司 | Self-extinguishing battery pack for electric automobile |
| CN112208332A (en) * | 2020-10-13 | 2021-01-12 | 赵平平 | Battery compartment throwing-off structure of battery-replacing type electric automobile |
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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: 20130807 Termination date: 20200204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |