CN208690338U - A kind of lithium battery overcharges protective device - Google Patents
A kind of lithium battery overcharges protective device Download PDFInfo
- Publication number
- CN208690338U CN208690338U CN201821324580.XU CN201821324580U CN208690338U CN 208690338 U CN208690338 U CN 208690338U CN 201821324580 U CN201821324580 U CN 201821324580U CN 208690338 U CN208690338 U CN 208690338U
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- Prior art keywords
- battery
- copper sheet
- lithium battery
- lithium
- protective device
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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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- Secondary Cells (AREA)
Abstract
The utility model relates to technical field of lithium batteries; in particular a kind of lithium battery overcharges protective device; including battery; the first binding post and the second binding post are equipped on the leading flank of battery side by side; it is opposed on the front and back sides of battery to be equipped with the first copper sheet and the second copper sheet; temperature relay is additionally provided on the front of battery, battery is externally provided with battery case.The utility model structure is simple; low production cost; it is not required to complicated circuit structure; only need to from outside by lithium battery volume expansion and temperature change carry out automatic shutter charging circuit; solving the problems, such as existing Overcharging protector of battery, structure is complicated, need to use a large amount of electronic components; save the cost; pass through the double control of lithium battery volume and temperature; it can also play a protective role the case where lithium battery not up to overcharges but battery appearance is swollen; the safety of lithium battery charging process is improved, and extends the service life of lithium battery.
Description
Technical field
The utility model relates to technical field of lithium batteries, specially a kind of lithium battery overcharges protective device.
Background technique
Lithium battery refers to the electricity for containing lithium (including lithium metal, lithium alloy and lithium ion, lighium polymer) in electrochemical system
Pond.Lithium battery is broadly divided into two class of lithium metal battery and lithium ion battery.Lithium metal battery is usually non-rechargeabel, and interior
Lithium containing metallic state.Lithium ion battery does not contain the lithium of metallic state, and can charge, and rechargeable lithium battary is currently
It is widely used in every field.But lithium battery is easy to appear the problem of overcharging during the charging process, i.e., anode is sent out with electrolyte
Raw reaction, the reaction heat of accumulation makes battery core be in thermal runaway state, so that cell heat sharply increases, so that battery is sent out
It perms swollen or even bursts, it is abnormally dangerous.
General major part lithium battery, which does not have, overcharges protective device, and only small part lithium battery, which has, overcharges protection dress
It sets, but structure is complicated for existing Overcharging protector of battery, multiple electronic components need to be used to pass through monitoring battery charging process
Middle voltage changes to judge whether battery overcharges and timely disconnecting circuit is to have the function that protection, but in hot weather
Charge to battery, it is possible that battery-heating swell and the case where voltage change and not up to overcharged voltage, it is general at this time
Overcharge protective device can not disconnecting circuit, battery last is swollen, and there are still biggish dangerous hidden danger, in consideration of it, we
It is proposed that a kind of lithium battery overcharges protective device.
Utility model content
The purpose of this utility model is to provide a kind of lithium batteries to overcharge protective device, to solve to mention in above-mentioned background technique
Structure is complicated for existing Overcharging protector of battery out, a variety of electronic components need to be used and can not it is normal to voltage but from
The problem of battery that body is swollen is protected.
To achieve the above object, the utility model provides the following technical solutions:
A kind of lithium battery overcharges protective device, including battery, is equipped with first side by side on the leading flank of the battery and connects
Terminal and the second binding post, it is opposed on the front and back sides of the battery to be equipped with the first copper sheet and the second copper sheet, first bronze medal
Piece extends to one end downside outside the battery equipped with the first contact block, and the other end upper side of first copper sheet is equipped with the
One wiring point, second copper sheet extend to one end upper side outside the battery equipped with the second contact block, second copper sheet
Other end downside be equipped with the second wiring point, second wiring point is electrically connected to first binding post by conducting wire
On；
Temperature relay is additionally provided on the front of the battery, the rear end of the temperature relay is equipped with sheet metal, institute
State temperature relay front end it is opposed be equipped with two wire columns, wherein a wire column is electrically connected to institute by conducting wire
It states on the second binding post；
The battery is externally provided with battery case, is set side by side on the leading flank of the battery case there are two the terminal that charges,
The charging terminal is equipped with wiring hole, and two charging terminals pass through conducting wire respectively and are electrically connected to first wiring point
On another wire column.
Preferably, first copper sheet, first contact block and first wiring point are an integral molding structure.
Preferably, shape, the size of first copper sheet and second copper sheet are all the same, first copper sheet and described
Adhesion is fixed on the front and back sides of the battery second copper sheet respectively.
Preferably, the height of first contact block be equal to the battery thickness half, first contact block with it is described
Second contact block is in electrical contact.
Preferably, the sheet metal adhesion is fixed on the front of the battery, the battery and the sheet metal
Heat-conducting silicone grease is coated on the front being in contact.
Preferably, the battery case inner hollow, after the rear end adhesion of the battery is fixed on the battery case
On the inside of wall.
Preferably, the battery it is positive between the roof of the battery case, the reverse side of the battery and institute
It states between the bottom wall of battery case and there are gaps before the battery between the antetheca of the battery case.
Compared with prior art, the utility model has the beneficial effects that
1. the utility model contacts with each other the contact block of copper sheet by the way that opposed copper sheet is arranged on battery front and back sides
To realize that circuit circulates, occurs overcharging or adstante febre, battery expanded by heating in lithium battery, expand two copper sheet spacing, touching
Block separates disconnecting circuit, avoids lithium battery from continuing to swell so that may there is a situation where burst；
2. the utility model occurs in lithium battery charging process by the way that temperature relay is arranged on the lateral surface of battery
It generates heat hot situation, when temperature reaches the operating temperature of temperature relay, temperature relay disconnects automatically, avoids lithium battery
Overheat causes to burn out；
3. battery case is arranged in the utility model outside battery, the hollow portion space of battery case is greater than the body of battery
Product makes battery case for battery and overcharges protective device and be all wrapped in it to play the role of protection.In conclusion this reality
Simple with new structure, low production cost is not required to complicated circuit structure, only need to be swollen from outside by the volume to lithium battery
Swollen and temperature change carrys out automatic shutter charging circuit, and solving existing Overcharging protector of battery, structure is complicated, it is big to use
The problem of measuring electronic component, save the cost are not up to overcharged by the double control of lithium battery volume and temperature in lithium battery
But the case where battery appearance is swollen can also play a protective role, and improve the safety of lithium battery charging process, and prolong
The service life of lithium battery is grown.
Detailed description of the invention
Fig. 1 is the positive structure schematic that the utility model lithium battery overcharges protective device；
Fig. 2 is the reverse structure schematic of the utility model；
Fig. 3 is the structural schematic diagram of the temperature relay of the utility model；
Fig. 4 is the schematic diagram of the section structure of the battery case of the utility model.
In figure: 1, battery；11, the first binding post；12, the second binding post；21, the first copper sheet；211, the first contact block；
212, the first wiring point；22, the second copper sheet；221, the second contact block；222, the second wiring point；3, temperature relay；31, metal
Piece；32, wire column；4, battery case；41, charge terminal；411, wiring hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " front ", " reverse side ", " width ", " height ",
The orientation or positional relationship of the instructions such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the utility model.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution:
A kind of lithium battery overcharges protective device, as shown in Figs. 1-2, including battery 1, on the leading flank of battery 1 side by side
It is opposed on the front and back sides of battery 1 to be equipped with the first copper sheet 21 and the second bronze medal equipped with the first binding post 11 and the second binding post 12
Piece 22, the first copper sheet 21 extend to one end downside outside battery 1 equipped with the first contact block 211, the other end of the first copper sheet 21
Upper side is equipped with the first wiring point 212, and the second copper sheet 22 extends to one end upper side outside battery 1 and is equipped with the second contact block 221,
The other end downside of second copper sheet 22 is equipped with the second wiring point 222, and the second wiring point 222 is electrically connected to first by conducting wire
On binding post 11.
In the present embodiment, the first copper sheet 21, the first contact block 211 and the first wiring point 212 are an integral molding structure, into one
Shape, the size of step ground, the first copper sheet 21 and the second copper sheet 22 are all the same, and the first copper sheet 21 and the difference adhesion of the second copper sheet 22 are solid
It is scheduled on the front and back sides of battery 1, deviates two copper sheet position fixations not.
In the present embodiment, the height of the first contact block 211 is equal to the half of 1 thickness of battery, the first contact block 211 and the second touching
Block 221 is in electrical contact, touches two copper sheets just entirely, can directly transmit electric current between two copper sheets when being powered,
To guarantee that circuit forms closed circuit.
Further, in this embodiment the outside of the first copper sheet 21 and the second copper sheet 22 should also be equipped with insulating layer, electricity is avoided
The case where pond is leaked electricity.
As shown in figure 3, being additionally provided with temperature relay 3 on the front of battery 1, the rear end of temperature relay 3 is equipped with metal
Piece 31, the front end of temperature relay 3 is opposed to be equipped with two wire columns 32, wherein a wire column 32 is electrically connected by conducting wire
Onto the second binding post 12.
In the present embodiment, 31 adhesion of sheet metal is fixed on the front of battery 1, and battery 1 is in contact with sheet metal 31
Front on be coated with heat-conducting silicone grease, convenient for improve sheet metal 31 heat-conducting effect, and then improve temperature relay 3 sensitivity.
It is worth noting that the temperature relay 3 being related in the present embodiment wins the limited public affairs of name electronics using Changzhou
Take charge of the temperature detect switch (TDS) thermal protector of the model KSD-01FD050 of (Sheng Weier electronics) production, matched conducting wire and accessory
It is provided by the manufacturer, the operating temperature of the temperature relay 3 is 50+5 degrees Celsius.In addition, the temperature being related in the present embodiment
Relay 3 is the prior art, and those skilled in the art may be implemented completely, is not necessarily to superfluous words, the content of the utility model protection
It is not related to the improvement to the structure and working principle of temperature relay 3 yet.
In addition, temperature relay 3 has normally opened or normally closed two kinds of working conditions, the temperature relay 3 of two kinds of working conditions is all
It is applicable to the utility model, preferred normally closed temperature relay 3 in the present embodiment, furthermore it is possible to according to the performance of lithium battery
Choose the temperature relay 3 of different operating temperatures.
As shown in figure 4, battery 1 is externally provided with battery case 4, set that there are two chargings on the leading flank of battery case 4 side by side
Terminal 41, charging terminal 41 are equipped with wiring hole 411, and two charging terminals 41 are electrically connected to the first wiring by conducting wire respectively
On point 212 and another wire column 32.
In the present embodiment, 4 inner hollow of battery case, the rear end adhesion of battery 1 is fixed on the interior of 4 rear wall of battery case
On side, keep battery 1 fixed, avoiding it from shaking in battery case 4 may cause conducting wire and loosen fracture or copper sheet, sheet metal change
The problem of shape.
In the present embodiment, between the front of battery 1 and the roof of battery case 4, the reverse side and battery case of battery 1
There are gaps between 4 bottom wall and before battery 1 between the antetheca of battery case 4, to the wiring in battery 1
Column, copper sheet and temperature relay 3 avoid influencing its working effect because squeezing there are enough spaces.
In the present embodiment, battery case 4 is made of polypropylene plastics, and material has good insulating properties, wear-resisting resistance to
With cheap.
The lithium battery of the utility model overcharges protective device at work, first will charging terminal 41 by charging power cord
It is connected on power supply, at this time in power supply-charging terminal 41- the first copper sheet 21- the second copper sheet 22- the first binding post 11- battery
Closed circuit is formed between the second binding post of 1- 12- temperature relay 3- charging terminal 41- power supply, battery 1 charges, to
1 electricity of battery is full of and power supply does not disconnect, then forms and overcharge long in battery 1, at this time anode and electrolyte in battery 1
React, accumulate a large amount of heat, can make battery 1 generate heat, and the outside of battery 1 occur because expanding with heat and contract with cold it is swollen
It is swollen, when the shell of battery 1 expands, so that the temperature of the first contact block 211 and the separation of the second contact block 212 or battery 1 reaches
The operating temperature of temperature relay 3 (50 degrees Celsius in such as the present embodiment), then closed circuit disconnects, and the stopping of battery 1 is filled
Electricity, to the no longer fever of battery 1, i.e., battery 1 restore original-pack and temperature drop to temperature relay 3 operating temperature hereinafter,
Then circuit restores closed state, and battery 1 continues to start to charge；Furthermore lithium battery is carried out under sizzler gas or hot environment
Charging, in fact it could happen that lithium battery also underfill is electric and lithium battery itself starts the case where generating heat, only to need the volume change of battery 1
Or temperature change either condition reaches protective condition, this, which overcharges protective device and will repeat the above process, charges to lithium battery
Protection avoids lithium battery from causing to burn out or occur other dangerous situations because of excessive heating.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit and scope of the utility model
Under the premise of, the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical
In novel range.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (7)
1. a kind of lithium battery overcharges protective device, including battery (1), it is characterised in that: on the leading flank of the battery (1)
It is equipped with the first binding post (11) and the second binding post (12) side by side, it is opposed on the front and back sides of the battery (1) to be equipped with first
Copper sheet (21) and the second copper sheet (22), first copper sheet (21) extend to one end downside of the battery (1) outside and are equipped with
The other end upper side of first contact block (211), first copper sheet (21) is equipped with the first wiring point (212), second copper sheet
(22) extend to one end upper side of the battery (1) outside equipped with the second contact block (221), second copper sheet (22) it is another
Downside is held to be equipped with the second wiring point (222), second wiring point (222) is electrically connected to first wiring by conducting wire
On column (11)；
It is additionally provided with temperature relay (3) on the front of the battery (1), the rear end of the temperature relay (3) is equipped with metal
Piece (31), the front end of the temperature relay (3) is opposed to be equipped with two wire columns (32), wherein a wire column (32)
It is electrically connected on second binding post (12) by conducting wire；
The battery (1) is externally provided with battery case (4), set side by side on the leading flank of the battery case (4) there are two charging
Terminal (41), the charging terminal (41) are equipped with wiring hole (411), and two charging terminals (41) pass through conducting wire electricity respectively
Property is connected on first wiring point (212) and another wire column (32).
2. lithium battery according to claim 1 overcharges protective device, it is characterised in that: first copper sheet (21), described
First contact block (211) and first wiring point (212) are an integral molding structure.
3. lithium battery according to claim 2 overcharges protective device, it is characterised in that: first copper sheet (21) and described
Shape, the size of second copper sheet (22) are all the same, and adhesion is fixed respectively for first copper sheet (21) and second copper sheet (22)
On the front and back sides of the battery (1).
4. lithium battery according to claim 3 overcharges protective device, it is characterised in that: the height of first contact block (211)
Degree is equal to the half of the battery (1) thickness, and first contact block (211) and second contact block (221) are in electrical contact.
5. lithium battery according to claim 1 overcharges protective device, it is characterised in that: sheet metal (31) adhesion is fixed
On the front of the battery (1), thermal conductive silicon is coated on the front that the battery (1) is in contact with the sheet metal (31)
Rouge.
6. lithium battery according to claim 1 overcharges protective device, it is characterised in that: in battery case (4) inside
The rear end adhesion of sky, the battery (1) is fixed on the inside of the battery case (4) rear wall.
7. lithium battery according to claim 6 overcharges protective device, it is characterised in that: the battery (1) front with
Between the roof of the battery case (4), between the reverse side of the battery (1) and the bottom wall of the battery case (4) and
There are gaps between the antetheca of the battery case (4) before the battery (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821324580.XU CN208690338U (en) | 2018-08-17 | 2018-08-17 | A kind of lithium battery overcharges protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821324580.XU CN208690338U (en) | 2018-08-17 | 2018-08-17 | A kind of lithium battery overcharges protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208690338U true CN208690338U (en) | 2019-04-02 |
Family
ID=65885825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821324580.XU Expired - Fee Related CN208690338U (en) | 2018-08-17 | 2018-08-17 | A kind of lithium battery overcharges protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208690338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084713A (en) * | 2022-07-22 | 2022-09-20 | 成都伍零三科技集团有限公司 | Battery packaging part, sodium ion battery and production method |
-
2018
- 2018-08-17 CN CN201821324580.XU patent/CN208690338U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084713A (en) * | 2022-07-22 | 2022-09-20 | 成都伍零三科技集团有限公司 | Battery packaging part, sodium ion battery and production method |
| CN115084713B (en) * | 2022-07-22 | 2022-11-25 | 成都伍零三科技集团有限公司 | Battery packaging part and sodium ion battery |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190402 |