CN206931624U - The battery cover plate structure and battery of defective valve are overturn under a kind of high temperature - Google Patents
The battery cover plate structure and battery of defective valve are overturn under a kind of high temperature Download PDFInfo
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- CN206931624U CN206931624U CN201720847756.9U CN201720847756U CN206931624U CN 206931624 U CN206931624 U CN 206931624U CN 201720847756 U CN201720847756 U CN 201720847756U CN 206931624 U CN206931624 U CN 206931624U
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- cover plate
- battery
- hot melt
- covering part
- insulating materials
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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
Abstract
The utility model discloses the battery cover plate structure and battery that defective valve is overturn under a kind of high temperature.Battery cover plate structure includes cover plate and negative pole rod structure.Roll-over valve is provided with cover plate, the rotating sheet of the roll-over valve can flip over ejection when outer draught head exceedes threshold value inside.Negative pole rod structure is fixed and insulated with the cover plate, the negative pole rod structure includes being arranged at intervals at the pole covering part on the outside of the cover plate, accommodating area is provided with the inside of the pole covering part, hot melt insulating materials, the accommodating area and the position correspondence of the rotating sheet are provided with the accommodating area.After outside batteries temperature exceedes threshold value, cover plate, which is heated to temperature, exceedes the fusing point of the hot melt insulating materials, it is described to heat insulating material melts and between the rotating sheet and the pole covering part, the rotating sheet is avoided to be contacted with the pole covering part, so that upset defective valve, actively short circuit will not be produced, secondary heating caused by short circuit is prevented, lifts the security performance of battery.
Description
Technical field
The battery cover that the utility model is related to upset defective valve under the technical field of battery, more particularly to a kind of high temperature is hardened
Structure and battery.
Background technology
Battery generally comprises battery cover plate structure, box body and battery core, and battery cover plate structure forms with box body and accommodates battery core
Accommodation space.As depicted in figs. 1 and 2, battery cover plate structure includes cover plate 1 ', and the both ends of cover plate 1 ' are respectively arranged with positive terminal knot
Structure 4 ' and negative pole rod structure 3 ', positive pole rod structure 4 ' electrically connect with cover plate 1 ', and negative pole rod structure 3 ' insulate with cover plate 1 '.Positive terminal
Structure 4 ' and negative pole rod structure 3 ' form both positive and negative polarity respectively with being drawn in the positive and negative pole material in battery core on cover plate 1 '.Cover plate
1 ' is above provided with roll-over valve 2 ', and negative pole rod structure 3 ' is provided with pole covering part 31 ', the position of roll-over valve 2 ' in the outside spacers of cover plate 2 '
In the inner side of pole covering part 31 '.When the inside and outside differential pressure of roll-over valve 2 ' reaches threshold value, the rotating sheet 21 ' in roll-over valve 2 ' is pushed up
Go out, the inner side of pole covering part 31 ' is connected to after flipping over, by cover plate 1 ' and the short circuit of negative pole rod structure 3 '.The positive pole of battery
Rod structure 4 ' on the connecting line of battery core with that can set fuse area 41 ', and when the both positive and negative polarity connection of battery is short-circuit, high current passes through molten
Disconnected area 41 ' can fuse fuse area 41 ' so that battery is de-energized protection.Battery at work, may for some reason, than
Such as hit, accidental short circuit, inside battery can be caused to break down, internal-response is violent, temperature rise, it is quick-fried to even result in battery
It is fried.Therefore, battery of the prior art is broken down, after air pressure inside rise by setting roll-over valve 2 ' in inside battery, can
To overturn actively short circuit by roll-over valve 2 ', fuse area 41 ' is fused, avoids inside battery failure from aggravating.
But roll-over valve 2 ' is applied in general to by the situation of inside battery failure.And some situations are the rings of outside batteries
Border changes, such as the temperature rise of outside batteries, causes inside battery to be heated too high, air pressure increases rapidly.Now if
The upset of roll-over valve 2 ' actively short circuit, it is easy to cause secondary heating, surrounding enviroment are caused with more serious potential safety hazard.
Utility model content
First purpose of the present utility model is to propose the battery cover plate structure that defective valve is overturn under a kind of high temperature, can be in electricity
Pond external temperature avoids roll-over valve from coming into force when very high, prevents secondary heating caused by short circuit.
To use following technical scheme up to this purpose, the utility model：
The battery cover plate structure of defective valve is overturn under a kind of high temperature, including：
Cover plate, is provided with roll-over valve, and the rotating sheet of the roll-over valve can flip over when outer draught head exceedes threshold value inside
Ejection；
Negative pole rod structure, fix and insulate with the cover plate, the negative pole rod structure includes being arranged at intervals at the cover plate
The pole covering part in outside, accommodating area is provided with the inside of the pole covering part, hot melt insulation is provided with the accommodating area
Material, the accommodating area and the position correspondence of the rotating sheet；
When the cover plate, which is heated, exceedes the fusing point of the hot melt insulating materials to temperature, the hot melt insulating material melts
And between the rotating sheet and the pole covering part, the rotating sheet is avoided to be contacted with the pole covering part.
Wherein, the accommodating area is the accommodating hole for penetrating the cover plate.
Wherein, the accommodating hole is stepped hole, and the large aperture end of the stepped hole is located at the outside of the pole covering part.
Wherein, the hot melt insulating materials is fixed in the accommodating area by injection or die casting.
Wherein, the fusing point of the hot melt insulating materials is 100 degrees Celsius~150 degrees Celsius.
Wherein, the hot melt insulating materials is plastic cement.
Wherein, battery cover plate structure also includes：
Positive pole rod structure, the cover plate is fixed on, and is turned on the cover plate；
Fuse area, time of the fuse area through super-high-current are provided with the positive pole rod structure and the connecting line of battery core
More than being blown after threshold value.
Wherein, the cover plate is provided with steam vent, hot melt material is filled with the steam vent, to cause the steam vent
Sealing；
When the cover plate, which is heated, exceedes the fusing point of the hot melt material to temperature, the hot melt material fusing, so that institute
State steam vent conducting.
Second purpose of the present utility model is to propose a kind of battery, and its battery cover plate structure can be in outside batteries temperature very
Avoid roll-over valve from coming into force when high, prevent secondary heating caused by short circuit.
To use following technical scheme up to this purpose, the utility model：
A kind of battery, including box body and it is above-mentioned at a high temperature of overturn the battery cover plate structure of defective valve, the box body and institute
State battery cover plate structure to fasten to form battery core receiving portion, battery core, the positive pole material of the battery core are accommodated in the battery core receiving portion
Material is connected by connecting line with the positive pole rod structure, and negative material is connected by connecting line with the negative pole rod structure.
Beneficial effect：The utility model provides the battery cover plate structure that defective valve is overturn under a kind of high temperature, including cover plate
With negative pole rod structure.It is provided with roll-over valve on cover plate, the rotating sheet of the roll-over valve can be to when outer draught head exceedes threshold value inside
Outer upset ejection.Negative pole rod structure is fixed and insulated with the cover plate, and the negative pole rod structure includes being arranged at intervals at the lid
Pole covering part on the outside of plate, accommodating area is provided with the inside of the pole covering part, it is exhausted that hot melt is provided with the accommodating area
Edge material, the accommodating area and the position correspondence of the rotating sheet.After outside batteries temperature exceedes threshold value, cover plate is heated to temperature
More than the fusing point of the hot melt insulating materials, the hot melt insulating material melts simultaneously cover positioned at the rotating sheet and the pole
Between portion, the rotating sheet is avoided to be contacted with the pole covering part so that upset defective valve, actively short circuit will not be produced, prevented
Only secondary heating caused by short circuit, lift the security performance of battery.
Brief description of the drawings
Fig. 1 is the structural representation of the battery cover plate structure of prior art.
Fig. 2 is partial enlarged drawing of the battery cover plate structure of prior art at roll-over valve.
Fig. 3 is the structural representation of battery cover plate structure of the present utility model.
Fig. 4 is the part at hot melt material and hot melt insulating materials when battery cover plate structure of the present utility model is not heated
Enlarged drawing.
Fig. 5 is that the part after battery cover plate structure of the present utility model is heated at hot melt material and hot melt insulating materials is put
Big figure.
Wherein：
1- cover plates, 11- steam vents, 12- hot melt materials, 13- explosion-proof valves, 2- roll-over valves, 21- rotating sheets, 3- negative terminal knots
Structure, 31- pole covering parts, 32- accommodating areas, 33- hot melt insulating materials, 4- positive pole rod structures, 41- fuse areas；
1 ＇-cover plate, 13 ＇-explosion-proof valve, 2 ＇-roll-over valve, 21 ＇-rotating sheet, 3 ＇-negative pole rod structure, 31 ＇-pole covering part,
4 ＇-positive pole rod structure, 41 ＇-fuse area.
Embodiment
It is clearer for the technical scheme and the technique effect that reaches that make technical problem that the utility model solves, use,
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
Embodiment 1
As shown in Figure 3-Figure 5, the battery cover plate structure that defective valve is overturn under a kind of high temperature, including lid are present embodiments provided
Plate 1 and negative pole rod structure 3 and positive pole rod structure 4.In the present embodiment, inner side refers to that outside is close to the side of inside battery
Refer to close to the side of external environment condition, inner side refers to that, close to one end of inside battery, outside refers to close to one end of external environment condition.With
Exemplified by Fig. 3, inner side refers to the lower surface of corresponding component, and outside refers to the upper surface of corresponding component.Positive pole rod structure 4 and cover plate 1
Fixed and electrical connection (i.e. in the conduction state), positive pole rod structure 4 on the connecting line of battery core with being provided with fuse area 41, fuse area
41 are blown after the time of super-high-current exceedes threshold value.Cover plate 1 is provided with roll-over valve 2, and the main body and cover plate 1 of roll-over valve 2 are solid
Fixed, the central area of roll-over valve 2 is provided with rotating sheet 21, abutting part of the middle part of rotating sheet 21 formed with cylinder.Roll-over valve 2
Rotating sheet 21 outer draught head can flip over ejection when exceeding threshold value inside so that abutting part abuts with the part in outside.
Negative pole rod structure 3 is fixed and insulated with cover plate 1, and negative pole rod structure 3 is included through the negative terminal of cover plate 1 and positioned at negative
The fixed part at pole both ends, negative terminal and fixed part, which coordinate, fixes negative pole rod structure 3 and cover plate 1, negative terminal 3 and cover plate 1 it
Between be additionally provided with insulation board etc. be used for insulate.Fixed part in negative pole rod structure 3 positioned at the outside of cover plate 1 is to be arranged at intervals at cover plate
The pole covering part 31 in 1 outside, the inner side of pole covering part 31 are provided with accommodating area 32, and hot melt insulation is provided with accommodating area 32
Material 33, accommodating area 32 and the position correspondence of rotating sheet 21.If inside battery breaks down, inside battery air pressure is caused to increase
It is big to flip over ejection to the preset value for exceeding roll-over valve 2, rotating sheet 21, be abutted with the pole covering part 31 of negative terminal 3, touch
Active short-circuit protection mechanism is sent out, the fuse area 41 on the connecting line of positive pole rod structure 4 is fused.
And when exceeding safe temperature for external environment condition heating, cover plate 1 is heated exceedes hot melt insulating materials 33 to temperature
Fusing point, hot melt insulating materials 33 melt and between rotating sheet 21 and pole covering part 31, avoid rotating sheet 21 from being covered with pole
Cap 31 contacts.Therefore, for the situation of external environment condition heating, the battery cover plate structure of the present embodiment on cover plate 1 by setting
Hot melt insulating materials 33 is put, insulating barrier can be formed between rotating sheet 21 and pole covering part 31, avoid rotating sheet 21 and pole
Post covering part 31 turns on, and can not trigger active short-circuit protection mechanism again, prevents secondary heating caused by short circuit, lifts the peace of battery
Full performance.
If the fusing point for heating insulating materials 33 is too low, it can cause this mechanism easily by false triggering, temperature is slightly higher to be begun to
Come into force, deleterious effect is caused to battery.The fusing point for heating insulating materials 33 can not be too high, and otherwise ambient temperature has been
The air pressure of inside battery is caused to increase, when active short-circuit protection mechanism enters into force, hot melt insulating materials 33 not yet melts, then
Through ineffective.In general, the fusing point of hot melt insulating materials 33 is proper at 100 degrees Celsius~150 degrees Celsius, for example set
Put at 120 degrees Celsius, 130 degrees Celsius etc..In the present embodiment, hot melt insulating materials 33 can select modeling of the fusing point in above range
Glue makes, for example fusing point is in the polyethylene of 120 degrees centigrades and polystyrene etc..
In this application, overturn under high temperature in the battery cover plate structure of defective valve, high temperature refers to not less than hot melt insulation material
The temperature of the fusing point of material 33.For example if the fusing point of hot melt insulating materials 33 is 120 degrees Celsius, high temperature then refers to be taken the photograph not less than 120
The temperature of family name's degree.
Hot melt insulating materials 33 can be fixed in accommodating area 32 by way of injection or die casting, and manufacture is efficient and convenient.
For plastic material, it can also be fixed by dripping the modes such as glue.
In the present embodiment, accommodating area 32 is the accommodating hole of insertion cover plate 1, in fusing, is easy to heat insulating materials 33
Flowed out in from accommodating area 32.Accommodating hole could be arranged to the form of stepped hole, and the large aperture end of stepped hole is located at pole covering part
31 outside.The ledge structure of stepped hole is easy to hot melt insulating materials 33 to seal up for safekeeping in stepped hole, avoids dropping.Stepped hole it is big
Aperture end can also store more hot melt insulating materials 33, it is ensured that prevent rotating sheet 21 from being contacted with pole covering part 31.
In the present embodiment, cover plate 1 can also set steam vent 11, and hot melt material 12 is filled with steam vent 11, so that
Steam vent 11 is obtained to seal.When cover plate 1, which is heated, exceedes the fusing point of hot melt material 12 to temperature, hot melt material 12 melts, so that row
Stomata 11 turns on.Hot melt material 12 can be insulating materials, or non-insulating material.Hot melt material 12 can be with heating absolutely
Edge material 33 is same material, for example is plastics material etc..By setting hot melt material 12, when ambient temperature too
Gao Shi, hot melt material 12 can be melted so that steam vent 11 turns on, and avoids inside battery air pressure too high and explodes.And
And by setting hot melt insulating materials 33 and hot melt material 12 simultaneously, it can both avoid battery when ambient temperature is too high
The short-circuit mechanism of generation active, avoids overheat short circuit from aggravating degree of danger.Steam vent 11 can also be actively opened, pressure is discharged, keeps away
Exempt to explode.
Explosion-proof valve 13 is additionally provided with cover plate 1, explosion-proof valve 13 surpasses generally than relatively thin thin slice in the air pressure inside of battery
After crossing threshold value, explosion-proof valve 13 can be broken through, and discharge the pressure of inside battery.Unlike explosion-proof valve 13, hot melt material 12 exists
Directly melted at a temperature of more than threshold value, it is not necessary to when air pressure inside accumulates to the i.e. releasable pressure of threshold value.Hot melt material 12
Situation about being overheated with steam vent 11 mainly for external environment condition is set, and explosion-proof valve 13 increases mainly for internal environment air pressure and
Set.Both protect from the external environment condition and internal environment of battery to battery respectively, improve the security performance of battery.
The present embodiment additionally provides a kind of battery, including box body and above-mentioned battery cover plate structure, box body and battery cover board
Structure is fastened to form battery core receiving portion, and battery core is accommodated in battery core receiving portion, and the positive electrode of battery core passes through connecting line and positive pole
Rod structure 4 is connected, and negative material is connected by connecting line with negative pole rod structure 3.The battery cover plate structure of such a battery is in outside
When environment heating exceedes safe temperature, cover plate 1, which is heated to temperature, exceedes the fusing point of hot melt insulating materials 33, heats insulating materials 33
Melt and be located between rotating sheet 21 and pole covering part 31, avoid rotating sheet 21 from contacting conducting with pole covering part 31, can not
Active short-circuit protection mechanism is triggered again, prevents secondary heating caused by short circuit, lifts the security performance of battery.
Above content is only preferred embodiment of the present utility model, for one of ordinary skill in the art, according to this reality
With new thought, there will be changes, this specification content should not be construed as in specific embodiments and applications
To limitation of the present utility model.
Claims (9)
1. the battery cover plate structure of defective valve is overturn under a kind of high temperature, it is characterised in that including：
Cover plate (1), is provided with roll-over valve (2), meeting when outer draught head exceedes threshold value inside of the rotating sheet (21) of the roll-over valve (2)
Flip over ejection；
Negative pole rod structure (3), and insulation fixed with the cover plate (1), the negative pole rod structure (3) are described including being arranged at intervals at
Pole covering part (31) on the outside of cover plate (1), accommodating area (32) is provided with the inside of the pole covering part (31), it is described accommodating
Hot melt insulating materials (33), the accommodating area (32) and the position correspondence of the rotating sheet (21) are provided with area (32)；
When the cover plate (1), which is heated, exceedes the fusing point of the hot melt insulating materials (33) to temperature, the hot melt insulating materials
(33) fusing and between the rotating sheet (21) and the pole covering part (31), avoid the rotating sheet (21) with it is described
Pole covering part (31) contacts.
2. battery cover plate structure as claimed in claim 1, it is characterised in that the accommodating area (32) is the insertion cover plate
(1) accommodating hole.
3. battery cover plate structure as claimed in claim 2, it is characterised in that the accommodating hole is stepped hole, the stepped hole
Large aperture end be located at the outside of pole covering part (31).
4. the battery cover plate structure as described in any one of claims 1 to 3, it is characterised in that the hot melt insulating materials (33)
It is fixed on by injection or die casting in the accommodating area (32).
5. battery cover plate structure as claimed in claim 4, it is characterised in that it is described hot melt insulating materials (33) fusing point be
100 degrees Celsius~150 degrees Celsius.
6. battery cover plate structure as claimed in claim 5, it is characterised in that the hot melt insulating materials (33) is plastic cement.
7. the battery cover plate structure as described in any one of claims 1 to 3, it is characterised in that also include：
Positive pole rod structure (4), the cover plate (1) is fixed on, and is turned on the cover plate (1)；
The positive pole rod structure (4) on the connecting line of battery core with being provided with fuse area (41), and the fuse area (41) is through excessive electricity
The time of stream is blown after exceeding threshold value.
8. battery cover plate structure as claimed in claim 7, it is characterised in that the cover plate (1) is provided with steam vent (11), institute
State in steam vent (11) and be filled with hot melt material (12), to cause the steam vent (11) to seal；
When the cover plate (1), which is heated, exceedes the fusing point of the hot melt material (12) to temperature, hot melt material (12) fusing,
So that steam vent (11) conducting.
9. a kind of battery, it is characterised in that the battery cover plate structure including box body and any one of claim 1~8, box body and electricity
Pond covering plate structure is fastened to form battery core receiving portion, and battery core is accommodated in battery core receiving portion, and the positive electrode of battery core passes through connecting line
It is connected with positive pole rod structure, negative material is connected by connecting line with negative pole rod structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847756.9U CN206931624U (en) | 2017-07-13 | 2017-07-13 | The battery cover plate structure and battery of defective valve are overturn under a kind of high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847756.9U CN206931624U (en) | 2017-07-13 | 2017-07-13 | The battery cover plate structure and battery of defective valve are overturn under a kind of high temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206931624U true CN206931624U (en) | 2018-01-26 |
Family
ID=61352889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720847756.9U Active CN206931624U (en) | 2017-07-13 | 2017-07-13 | The battery cover plate structure and battery of defective valve are overturn under a kind of high temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206931624U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293655A (en) * | 2017-07-13 | 2017-10-24 | 深圳市科达利实业股份有限公司 | The battery cover plate structure and battery of defective valve are overturn under a kind of high temperature |
-
2017
- 2017-07-13 CN CN201720847756.9U patent/CN206931624U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293655A (en) * | 2017-07-13 | 2017-10-24 | 深圳市科达利实业股份有限公司 | The battery cover plate structure and battery of defective valve are overturn under a kind of high temperature |
| CN107293655B (en) * | 2017-07-13 | 2023-05-23 | 深圳市科达利实业股份有限公司 | Battery cover plate structure and battery with failure of turnover valve at high temperature |
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| GR01 | Patent grant |