CN206304248U - A kind of lithium battery pack and its automatic dry chemical extinguishing device - Google Patents
A kind of lithium battery pack and its automatic dry chemical extinguishing device Download PDFInfo
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- CN206304248U CN206304248U CN201621004774.2U CN201621004774U CN206304248U CN 206304248 U CN206304248 U CN 206304248U CN 201621004774 U CN201621004774 U CN 201621004774U CN 206304248 U CN206304248 U CN 206304248U
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- dry powder
- cylinder
- piston
- extinguishing device
- powder cylinder
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Abstract
The utility model discloses a kind of lithium battery pack and its automatic dry chemical extinguishing device, automatic dry chemical extinguishing device, including the dry powder cylinder for powder extinguishing agent, dry powder cylinder is provided with the piston cylinder of plunger shaft and dry powder cylinder inner space, pilot seal is equipped with piston in piston cylinder, for driving piston to be moved to the direction of dry powder cylinder so as to produce the drive mechanism of compressed gas in piston cylinder when the temperature that automatic dry chemical extinguishing device is additionally included in battery bag exceeds critical value, dry powder cylinder is provided with spout and closes the spout and the magnetic valve that can be automatically opened up when needed in normal state.The utility model extinguishing device has non-pressure storage type and pressure storage type dry powder extinguisher advantage concurrently, uses reliability, low cost.
Description
Technical field
The utility model is related to technical field of lithium batteries, and in particular to a kind of automatic dry chemical fire extinguishing dress of lithium battery pack
Put, further relate to a kind of lithium battery pack using the automatic dry chemical extinguishing device.
Background technology
With the exploitation and the popularization of electric automobile of new energy, the use of battery is more and more extensive.And tradition electricity
Pond tool has disadvantages that, is mainly shown as：Service life is short, carrying can low, reliability be low, performance difference etc. in groups.At present, pass
The motive-power battery of system such as lead-acid battery, nickel-cadmium cell, fuel cell etc. are gradually eliminated, and the lithium that latest developments are got up is dynamic
, with its remarkable performance gradually entering into the market and commercialized stage, compared to conventional batteries, its special performance is main for power battery
Show as：Than can high, monomer voltage be high, self-discharge rate is low, long service life, memory-less effect, cleanliness without any pollution etc..With lithium
The continuous expansion in battery applications market, the safety problem of lithium battery gradually causes the concern of people.Although dynamic lithium battery has
Plurality of advantages, but the accident that fire occurs because of electrokinetic cell constantly occurs, thus how to prevent battery fire generation and
How fire more timely and effectively carries out research emphasis of the fire extinguishing as battery system after occurring.
On the problem put out a fire, Chinese patent（Application publication number is CN102512775A）Disclose a kind of automobile power electricity
Pond cabin fire extinguishing system, including extinguishing device, extinguishing chemical delivery pipe, temperature-sensitive element etc..Extinguishing device can be ultra-fine using pressure storage type
Dry powder extinguisher, can also use impulse fine dry powder fire extinguisher.Gas is filled in pressure-storage fire extinguisher, can there is gas leakage
Problem.But pressure storage type superfine powder fire extinguisher can filling ultra-fine dry powder extinguishing agent repeatedly.Impulse fine dry powder fire extinguisher does not have
Fill gas, normal pressure storage, in the absence of leakage problem.But impulse fine dry powder fire extinguisher drives for gas type, not reproducible
Ultra-fine dry powder extinguishing agent is filled, is disposable fire-extinguishing apparatus.One end of extinguishing chemical delivery pipe is connected with the spout of extinguishing device.Heat
Temperature value in battery bag is passed to signal adapter by quick element, and signal adapter is judged temperature value.Work as temperature value
Higher than the threshold value of setting, temperature value is converted into extinguishing device open signal by signal adapter, and passes to extinguishing device.
The content of the invention
The purpose of this utility model be to provide it is a kind of can have concurrently non-pressure storage type and pressure storage type dry powder extinguisher advantage from
Dynamic dry powder extinguishing installation.The utility model also provides a kind of lithium battery pack using the extinguishing device simultaneously.
In order to realize the above object the technical scheme of automatic dry chemical extinguishing device is as follows in the utility model：Automatic dry chemical
Extinguishing device, including for the dry powder cylinder of powder extinguishing agent, dry powder cylinder is provided with the piston of plunger shaft and dry powder cylinder inner space
Cylinder, pilot seal is equipped with piston in piston cylinder, and the temperature that automatic dry chemical extinguishing device is additionally included in battery bag exceeds critical
During value for drive direction from piston to dry powder cylinder move so that in piston cylinder produce compressed gas drive mechanism, on dry powder cylinder
It is provided with spout and closes the spout and the magnetic valve that can be automatically opened up when needed in normal state.
The piston cylinder is located at the top of dry powder cylinder, and the spout is located at the bottom of dry powder cylinder.
The drive mechanism includes the electric pushrod being connected with piston drive.
The magnetic valve includes plug cone and the electromagnet being connected with plug cone, and plug cone has with the spout in normal state
Seal the sealing surface for coordinating.
The plug bores the sealing surface for being in prism-shaped and being sequentially connected with four head and the tail, the relative sealing surface of two of which
Angle of inclination is identical, and the angle of inclination of two other relative sealing surface differs.
The technical scheme of lithium battery pack is as follows in the utility model：
Lithium battery pack, including automatic dry chemical extinguishing device, automatic dry chemical extinguishing device are included for the dry of powder extinguishing agent
Powder cylinder, dry powder cylinder is provided with the piston cylinder of plunger shaft and dry powder cylinder inner space, and pilot seal is equipped with piston in piston cylinder, from
For driving piston to be moved to the direction of dry powder cylinder when the temperature that dynamic dry powder extinguishing installation is additionally included in battery bag exceeds critical value
Move so as to produce the drive mechanism of compressed gas in piston cylinder, dry powder cylinder is provided with spout and closes the spray in normal state
Mouth and the magnetic valve that can be automatically opened up when needed.
The piston cylinder is located at the top of dry powder cylinder, and the spout is located at the bottom of dry powder cylinder.
The drive mechanism includes the electric pushrod being connected with piston drive.
The magnetic valve includes plug cone and the electromagnet being connected with plug cone, and plug cone has with the spout in normal state
Seal the sealing surface for coordinating.
The plug bores the sealing surface for being in prism-shaped and being sequentially connected with four head and the tail, the relative sealing surface of two of which
Angle of inclination is identical, and the angle of inclination of two other relative sealing surface differs.
The beneficial effects of the utility model：Extinguishing device of the present utility model when being applied in lithium battery pack, when initial,
Namely under normal condition, piston is in the position in the outer part of piston cylinder, the air in piston cylinder is in uncompressed state.Dry powder
Dry powder is filled with cylinder, plug cone is brought into close contact in the presence of magnetic valve with dry powder cylinder, prevents dry powder from leaking.Work as temperature sensor
When detecting the temperature in battery bag beyond critical value, control system control piston operation, piston compresses air, in piston cylinder
Air is in compressive state.When there is flame, electromagnetism valve events open spout, and dry powder sprays from dry powder cylinder and gone out
Fire.Extinguishing device of the present utility model, using the structure of non-pressure storage type, when fire extinguishing is needed, ability compressed air storage pressure does not exist
Leakage problem；Meanwhile, dry powder cylinder is used, after having used, can repeat profit again to dry powder is filled in dry powder cylinder
With the cost that reduction is used.Extinguishing device has non-pressure storage type and pressure storage type dry powder extinguisher advantage concurrently, uses reliability, low cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model automatic dry chemical extinguishing device（Piston cylinder is in uncompressed state）；
Fig. 2 is the structural representation of the utility model automatic dry chemical extinguishing device（Piston cylinder is in compressed air state）；
Fig. 3 is the structural representation of the plug cone in Fig. 1；
Fig. 4 is the side view of Fig. 3.
Specific embodiment
The embodiment of the utility model automatic dry chemical extinguishing device：As Figure 1-4, automatic dry chemical extinguishing device, including
For the dry powder cylinder 5 of powder extinguishing agent, dry powder cylinder 5 is provided with the piston cylinder 4 of plunger shaft and dry powder cylinder inner space.Dry powder cylinder 5
Axis along reach the standard grade direction extension, it has the cavity for holding powder extinguishing agent.The axis of piston cylinder 4 prolongs in left-right direction
Stretch, the axis with dry powder cylinder 5 is vertical.The left end of piston cylinder 4 is connected with the top of dry powder cylinder 5.Pilot seal assembling in piston cylinder 4
There is piston 2, piston 2 is provided with O-ring seal 3, and the right-hand member of piston is connected with electric pushrod 1, with band piston in piston
The interior guiding movement in left-right direction of cylinder.For driving piston when electric pushrod 1 exceeds critical value as the temperature in battery bag
Moved to the direction of dry powder cylinder so as to produce the drive mechanism of compressed gas in piston cylinder.
Dry powder cylinder 5 is provided with spout, and spout is located at the lower right side of dry powder cylinder.Magnetic valve 7 is additionally provided with dry powder cylinder 5.Just
Magnetic valve close jet under normal state, prevents powder extinguishing agent from spilling, and can automatically open up when needed, so that dry-chemical fire extinguishing
Agent can spray from nozzle.Magnetic valve is provided with upper and lower two.Magnetic valve 7 includes plug cone 9 and the electromagnetism being connected with plug cone 9
Iron, plug cone 9 has the sealing surface for sealing cooperation in normal state with spout.Electromagnet is fixed on by electromagnet fixed mount 6
On dry powder cylinder, electromagnet is frame-type DC electromagnet.Plug cone be made up of sealing 92 and the two parts of connecting portion 91, connecting portion with
Electromagnet is connected, and plug cone 9 is held out against in nozzle in the presence of the spring 8 of electromagnet, seals the spout.The company of being provided with of connecting portion 91
Connect hole 911.Plug cone 9 is the encapsulated part of aluminium alloy, and with certain elasticity and sealing, being in close contact with dry powder cylinder can improve dry powder
The sealing property of cylinder.The sealing 92 of plug cone 9 is in prism-shaped and the sealing surface being sequentially connected with four head and the tail and a connection
Face, the angle of inclination of the relative sealing surface of two of which is identical, and the angle of inclination of two other relative sealing surface differs.Tool
Body ground, according to plug cone position in a state of use, define four sealing surfaces be respectively sealing surface 922, lower sealing surface 923,
Preceding sealing surface 925, rear sealing surface 924.Joint face 921 is vertical plane, and the angle of the opposing connecting surface 921 of upper sealing surface 922 is
30 degree, lower sealing surface 923 is 60 degree relative to the angle of joint face 921.Left and right sealing surface is symmetrical arranged, between the two in 60
Degree angle.
The operation principle of the utility model automatic dry chemical extinguishing device is as follows：
When initial, electric pushrod is in contraction state, destroked, and ABC class ultra-fine dry powders are filled in dry powder cylinder, and plug cone exists
It is brought into close contact with dry powder cylinder in the presence of the spring of DC electromagnet, prevents dry powder from leaking.When temperature sensor detects battery
When temperature in bag exceeds critical value, the control system control linear running of electric pushrod 1 promotes piston compresses air, stops after 10s
Only move.When there is flame, electromagnet is powered and pulls plug cone to open valve, and dry powder sprays from dry powder cylinder is put out a fire.Plug
Make the inclined-plane of 30 degree and 60 degree in cone section, in order to change the direction of dry powder injection, most dry powder will pass through
30 degree of inclined-planes are ejected.
The utility model is used in combination using direct current drive push rod and DC electromagnet, improves the automatic of whole device
Change degree, DC electromagnet and direct current drive push rod are individually controlled, in the presence of the time difference be capable of achieving air compression and
Dry powder sprays.Overall structure is simply compact, is applied to simple and practical in battery module, and can improve fire-fighting efficiency.
The embodiment of the utility model lithium battery pack, lithium battery pack includes battery module and automatic dry chemical extinguishing device, from
Dynamic dry powder extinguishing installation is identical with the structure of above-mentioned automatic dry chemical extinguishing device, and specific embodiment is no longer described in detail, is referred to
The content stated.
In other embodiments, also the certain angle of tiltable is set the axis of the axis of piston cylinder and dry powder cylinder, without
Using being vertically arranged, or piston cylinder also can be vertically arranged, or piston cylinder may be alternatively located at the bottom side of dry powder cylinder.In other implementations
In example, electric pushrod can also be replaced by cylinder, and the piston rod of cylinder is extend into piston cylinder.
The sealing of the plug cone in the present embodiment is irregular obform body, in other embodiments, fills in the sealing of cone
May be alternatively configured circular cone shape, or tetrapyamid shape.
Claims (10)
1. automatic dry chemical extinguishing device, it is characterised in that：Including the dry powder cylinder for powder extinguishing agent, dry powder cylinder is provided with piston
Chamber and the piston cylinder of dry powder cylinder inner space, pilot seal is equipped with piston in piston cylinder, and automatic dry chemical extinguishing device also includes
For driving piston to be moved to the direction of dry powder cylinder so as to produce pressure in piston cylinder when temperature in battery bag exceeds critical value
The drive mechanism of contracting gas, dry powder cylinder is provided with spout and closes the spout and when needed can be automatic in normal state
The magnetic valve of opening.
2. automatic dry chemical extinguishing device according to claim 1, it is characterised in that：The piston cylinder is located at the upper of dry powder cylinder
Portion, the spout is located at the bottom of dry powder cylinder.
3. automatic dry chemical extinguishing device according to claim 1, it is characterised in that：The drive mechanism includes being passed with piston
The electric pushrod of dynamic connection.
4. the automatic dry chemical extinguishing device according to any one of claims 1 to 3, it is characterised in that：The magnetic valve includes
Plug cone and the electromagnet being connected with plug cone, plug cone have the sealing surface for sealing cooperation in normal state with the spout.
5. automatic dry chemical extinguishing device according to claim 4, it is characterised in that：The plug cone is in prism-shaped and with four
The sealing surface that individual head and the tail are sequentially connected, the angle of inclination of the relative sealing surface of two of which is identical, two other relative sealing
The angle of inclination in face differs.
6. lithium battery pack, it is characterised in that：Including automatic dry chemical extinguishing device, automatic dry chemical extinguishing device includes being gone out for dry powder
The dry powder cylinder of fiery agent, dry powder cylinder is provided with the piston cylinder of plunger shaft and dry powder cylinder inner space, pilot seal assembling in piston cylinder
There is piston, for driving piston to dry powder cylinder when the temperature that automatic dry chemical extinguishing device is additionally included in battery bag exceeds critical value
Direction move so as to produce the drive mechanism of compressed gas in piston cylinder, dry powder cylinder is provided with spout and seals in normal state
Close the spout and the magnetic valve that can be automatically opened up when needed.
7. lithium battery pack according to claim 6, it is characterised in that：The piston cylinder is located at the top of dry powder cylinder, described
Spout is located at the bottom of dry powder cylinder.
8. lithium battery pack according to claim 6, it is characterised in that：The drive mechanism includes what is be connected with piston drive
Electric pushrod.
9. the lithium battery pack according to any one of claim 6 to 8, it is characterised in that：The magnetic valve include plug cone and with
The electromagnet of plug cone connection, plug cone has the sealing surface for sealing cooperation in normal state with the spout.
10. lithium battery pack according to claim 9, it is characterised in that：The plug cone is in prism-shaped and with four head and the tail
The sealing surface being sequentially connected, the angle of inclination of the relative sealing surface of two of which is identical, and two other relative sealing surface inclines
Rake angle is differed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621004774.2U CN206304248U (en) | 2016-08-31 | 2016-08-31 | A kind of lithium battery pack and its automatic dry chemical extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621004774.2U CN206304248U (en) | 2016-08-31 | 2016-08-31 | A kind of lithium battery pack and its automatic dry chemical extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206304248U true CN206304248U (en) | 2017-07-07 |
Family
ID=59242360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621004774.2U Expired - Fee Related CN206304248U (en) | 2016-08-31 | 2016-08-31 | A kind of lithium battery pack and its automatic dry chemical extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206304248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110507929A (en) * | 2019-08-30 | 2019-11-29 | 北京吉时开启智能科技有限公司 | The double startup spraying fire extinguisher of electric automobile battery box |
-
2016
- 2016-08-31 CN CN201621004774.2U patent/CN206304248U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110507929A (en) * | 2019-08-30 | 2019-11-29 | 北京吉时开启智能科技有限公司 | The double startup spraying fire extinguisher of electric automobile battery box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20200831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |