CN217035781U - Small lithium battery with overheat protection function - Google Patents
Small lithium battery with overheat protection function Download PDFInfo
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- CN217035781U CN217035781U CN202220683759.4U CN202220683759U CN217035781U CN 217035781 U CN217035781 U CN 217035781U CN 202220683759 U CN202220683759 U CN 202220683759U CN 217035781 U CN217035781 U CN 217035781U
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Abstract
The utility model discloses a small lithium battery with an overheat protection function, which comprises a shell, wherein a top cover is fixed on the outer wall of the top of the shell through bolts, a lithium battery body is placed in the shell, a heat conducting plate is arranged at the top of the lithium battery body, a fixing plate is fixed on the inner wall of the top cover through bolts, an expansion airbag is arranged on the inner wall of the fixing plate, the outer wall of the bottom of the expansion airbag is attached to the outer wall of the top of the heat conducting plate, and a contact piece is arranged on the outer wall of the top of the expansion airbag. According to the utility model, the heat of the lithium battery body is transferred to the expansion air bag through the heat conducting plate, the expansion air bag expands when the temperature is overheated, the contact piece is driven to move upwards to be contacted with the sensing piece, the sensing piece generates a signal for the miniature storage battery, and the miniature storage battery supplies power for the heat dissipation fan to enable the heat dissipation fan to rotate to dissipate heat for the lithium battery body, so that the function of overheating protection for the lithium battery body is achieved, the lithium battery body can be prevented from being burnt out, and the service life of the lithium battery body is prolonged.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a small lithium battery with an overheat protection function.
Background
A lithium battery is a battery using a nonaqueous electrolyte solution and lithium metal or a lithium alloy as a negative electrode material, and therefore such a battery is also called a lithium metal battery. Unlike other batteries, lithium batteries have the characteristics of high charge density, long life, high unit cost, and the like.
The small lithium battery does not have the function of overheat protection, the lithium battery body is burnt due to overhigh heat, and the lithium battery body is fixed by bolts, so that the lithium battery is very troublesome to mount and dismount.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a small lithium battery with an overheating protection function, and the small lithium battery with the overheating protection function is used for overcoming the defects that the function of overheating protection is not realized and the mounting and the dismounting are very troublesome in the prior art.
In order to achieve the above purpose, the utility model provides the following technical scheme:
the utility model provides a small-size lithium cell with overheat protection function, includes the shell, there is the top cap through the bolt fastening on the outer wall at shell top, lithium cell has been placed to the inside of shell, and lithium cell's top is provided with the heat-conducting plate, there is the fixed plate through the bolt fastening on the inner wall of top cap, and be provided with the inflation gasbag on the inner wall of fixed plate, the bottom outer wall of inflation gasbag is laminated mutually with the top outer wall of heat-conducting plate, and is provided with the contact on the outer wall at inflation gasbag top, be provided with response piece and miniature battery on the inner wall at top cap top respectively, all there is the heat dissipation fan through the bolt fastening on the outer wall of shell both sides, and the heat dissipation fan all is electric connection with miniature battery through the wire with the response piece.
Further, all install the fixing base through the bolt on the inner wall of shell both sides, and the inside of shell is provided with splint, the lithium cell body centre gripping is between splint, and is provided with the plug on the outer wall of lithium cell body one side.
Furthermore, a pushing block is fixed on the outer wall of one side of the clamping plate through a bolt and is connected inside the fixed seat in a sliding mode.
Furthermore, threaded connection has the long-neck bolt on the outer wall at fixing base top, and the bottom of long-neck bolt is fixed with the extrusion piece through the bolt, the extrusion piece is laminated with the ejector pad mutually, be provided with the pullback spring that is connected with the ejector pad on the inner wall of fixing base.
Furthermore, there is a guide rod fixed on the inner wall of the housing through a bolt, and a guide sleeve fixed on the outer wall of one side of the clamping plate through a bolt, wherein the guide sleeve is slidably connected to the outside of the guide rod.
Furthermore, a sliding seat is fixed on the outer wall of one side of the shell through a bolt, a blocking cover is connected to the inner portion of the sliding seat in a sliding mode, and movable grooves are formed in the top portion of the blocking cover and the outer wall of the bottom portion of the blocking cover.
Furthermore, the inside sliding connection of activity groove has the fixture block, and has seted up the draw-in groove on the inner wall of slide, fixture block sliding connection is in the inside of draw-in groove, be provided with the joint spring that is connected with the fixture block on the inner wall of activity groove.
In the technical scheme, the utility model provides a small lithium battery with an overheat protection function, which comprises (1) a lithium battery body, an expansion airbag, a contact piece, a sensing piece, a micro storage battery, a heat dissipation fan and a heat conduction plate, wherein the heat of the lithium battery body is conducted to the expansion airbag through the heat conduction plate, the expansion airbag expands when the temperature is overheated, the contact piece is driven to move upwards to be contacted with the sensing piece, the sensing piece generates a signal for the micro storage battery, and the micro storage battery supplies power for the heat dissipation fan to enable the heat dissipation fan to rotate to dissipate heat for the lithium battery body, so that the overheat protection function for the lithium battery body is realized, the lithium battery body can be prevented from being burnt out, and the service life of the lithium battery body is prolonged; (2) through the arrangement of the fixing seat, the clamping plate, the push block, the pull-back spring, the long-neck bolt and the extrusion block, the long-neck bolt is rotated to drive the extrusion block to extrude the push block, so that the push block can drive the clamping plate to move to clamp and fix the lithium battery body, and the lithium battery body is not fixed by a plurality of bolts, so that the lithium battery body is very convenient to mount and dismount; (3) through the arranged guide rod and the guide sleeve, in the moving process of the clamping plate, the guide sleeve moves outside the guide rod and can guide the clamping plate, so that the clamping plate can move in parallel; (4) through the slide, keep off lid, plug, activity groove, fixture block, draw-in groove and the joint spring that set up, keep off the lid and keep off in the outside of plug, can prevent that water or dust from entering into the inside of plug, can prevent that the plug from damaging to the elasticity of joint spring can make the fixture block joint in the inside of draw-in groove, can fix the fender lid, can prevent to keep off the phenomenon that the lid takes place from skidding.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic perspective view of a small lithium battery with an overheat protection function according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an internal structure of a small lithium battery with an overheat protection function according to an embodiment of the present invention.
Fig. 3 is a schematic view of an internal structure of a fixing base provided in an embodiment of a small lithium battery with an overheat protection function according to the present invention.
Fig. 4 is a schematic view of a shield cover according to an embodiment of the present invention.
Description of the reference numerals:
the heat-dissipation device comprises a shell 1, a top cover 2, a lithium battery body 3, a fixing plate 4, an expansion air bag 5, a contact piece 6, a sensing piece 7, a miniature storage battery 8, a heat-dissipation fan 9, a fixing seat 10, a clamping plate 11, a pushing block 12, a pullback spring 13, a long-neck bolt 14, an extrusion block 15, a guide rod 16, a guide sleeve 17, a sliding seat 18, a blocking cover 19, a plug 20, a movable groove 21, a clamping block 22, a clamping groove 23, a clamping spring 24 and a heat-conduction plate 25.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a small lithium battery with an overheat protection function according to an embodiment of the present invention includes a housing 1, a top cover 2 is fixed to an outer wall of a top of the housing 1 by bolts, a lithium battery body 3 is placed inside the housing 1, a heat conducting plate 25 is disposed on the top of the lithium battery body 3, a fixing plate 4 is fixed to an inner wall of the top cover 2 by bolts, an inflatable air bag 5 is disposed on the inner wall of the fixing plate 4, a bottom outer wall of the inflatable air bag 5 is attached to an outer wall of a top of the heat conducting plate 25, a contact piece 6 is disposed on an outer wall of the top of the inflatable air bag 5, a sensing piece 7 and a micro storage battery 8 are respectively disposed on the inner wall of the top cover 2, heat dissipation fans 9 are fixed to outer walls of two sides of the housing 1 by bolts, and the heat dissipation fans 9 and the sensing piece 7 are electrically connected to the micro storage battery 8 by wires.
The utility model provides a small lithium battery with an overheat protection function, which comprises a shell 1, wherein a top cover 2 is fixed on the outer wall of the top of the shell 1 through bolts, a lithium battery body 3 is placed in the shell 1, a heat conducting plate 25 is arranged at the top of the lithium battery body 3, a fixing plate 4 is fixed on the inner wall of the top cover 2 through bolts, an expansion air bag 5 is arranged on the inner wall of the fixing plate 4, the outer wall of the bottom of the expansion air bag 5 is attached to the outer wall of the top of the heat conducting plate 25, a contact piece 6 is arranged on the outer wall of the top of the expansion air bag 5, a sensing piece 7 and a micro storage battery 8 are respectively arranged on the inner wall of the top cover 2, heat dissipation fans 9 are fixed on the outer walls of two sides of the shell 1 through bolts, the heat dissipation fans 9 and the sensing piece 7 are electrically connected with the micro storage battery 8 through leads, when the temperature of the lithium battery body 3 is too high, the expansion air bag 5 expands to drive the movable contact piece 6 to move upwards and contact with the sensing piece 7, the induction sheet 7 generates a signal for the micro storage battery 8, and the micro storage battery 8 supplies power for the heat dissipation fan 9 to enable the heat dissipation fan 9 to rotate to dissipate heat of the lithium battery body 3.
Has the advantages that: lithium cell 3's heat passes through heat-conducting plate 25 and conducts the heat to inflation gasbag 5, the inflation can take place for inflation gasbag 5 when the temperature is overheated, can drive contact 6 and shift up and the contact of response piece 7, response piece 7 is to the 8 signals of miniature battery, miniature battery 8 makes heat dissipation fan 9 rotate to lithium cell 3 heat dissipation for heat dissipation fan 9 power supplies, the function to 3 overheat protection of lithium cell has been played, can prevent that lithium cell 3 from burning out, lithium cell 3's life has been prolonged.
In another embodiment of the present invention, as shown in fig. 2 and 3, fixing seats 10 are installed on the inner walls of both sides of the housing 1 through bolts, clamping plates 11 are disposed inside the housing 1, the lithium battery body 3 is clamped between the clamping plates 11, and a plug 20 is disposed on the outer wall of one side of the lithium battery body 3, so as to clamp and fix the clamping plates 11.
In another embodiment of the present invention, as shown in fig. 2 and 3, a pushing block 12 is fixed on an outer wall of one side of the clamping plate 11 through a bolt, and the pushing block 12 is slidably connected inside the fixing seat 10, so that the fixing seat 10 can guide the pushing block 12.
In another embodiment of the present invention, as shown in fig. 2 and 3, a long-neck bolt 14 is threadedly connected to an outer wall of the top of the fixing base 10, a pressing block 15 is fixed to a bottom end of the long-neck bolt 14 through a bolt, the pressing block 15 is attached to the pushing block 12, a pull-back spring 13 connected to the pushing block 12 is disposed on an inner wall of the fixing base 10, and when the pushing block 12 is not pressed by the pressing block 15, the pull-back spring 13 can pull the pushing block 12 and the clamping plate 11 to move.
In another embodiment provided by the present invention, as shown in fig. 2, a guide rod 16 is fixed on the inner wall of the housing 1 through a bolt, a guide sleeve 17 is fixed on the outer wall of one side of the clamping plate 11 through a bolt, the guide sleeve 17 is slidably connected to the outside of the guide rod 16, and the guide rod 16 can guide the guide sleeve 17 and the clamping plate 1, so as to enable the clamping plate 11 to move in parallel.
In another embodiment provided by the present invention, as shown in fig. 1 and 4, a sliding base 18 is fixed on an outer wall of one side of the housing 1 through a bolt, a blocking cover 19 is slidably connected inside the sliding base 18, movable grooves 21 are respectively formed on outer walls of the top and the bottom of the blocking cover 19, and the blocking cover 19 can prevent dust and water from entering the plug 20.
In another embodiment provided by the present invention, as shown in fig. 1 and fig. 4, a clamping block 22 is slidably connected inside the movable groove 21, a clamping groove 23 is formed on an inner wall of the sliding seat 18, the clamping block 22 is slidably connected inside the clamping groove 23, a clamping spring 24 connected with the clamping block 22 is arranged on the inner wall of the movable groove 21, and an elastic force of the clamping spring 22 can clamp the clamping block 22 inside the clamping groove 23, so as to fix the blocking cover 19.
The working principle is as follows: when the small lithium battery with the overheat protection function is used, the lithium battery body 3 is placed in the shell 1 and positioned between the two clamping plates 11, the long-neck bolt 14 is rotated to drive the extrusion block 15 to move downwards to extrude the push block 12, the push block 12 can drive the clamping plates 11 to move to clamp and fix the lithium battery body 3, then the top cover 2 is fixed at the top of the shell 1 through the bolt, heat generated when the lithium battery body 3 works is conducted to the expansion air bag 5 through the heat conducting plate 25, when the temperature is too high, the expansion air bag 5 can expand to drive the movable contact 6 to move upwards to be contacted with the induction sheet 7, the induction sheet 7 generates a signal for the micro storage battery 8, the micro storage battery 8 can supply power for the heat dissipation fan 9, the heat dissipation fan 9 can be rotated to dissipate heat for the lithium battery body 3, the overheat protection function for the lithium battery body 3 is realized, and the burning out of the lithium battery body 3 can be prevented, when plug 20 does not use, pulling keeps off lid 19 and shelters from plug 20, can prevent that water and dust from entering into plug 20's inside and causing the damage, and the elasticity of joint spring 24 can make fixture block 22 joint in the inside of draw-in groove 23, can fix keeping off lid 19, can prevent to keep off lid 19 and take place to slide unusual practicality.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.
Claims (7)
1. A small lithium battery with an overheat protection function comprises a shell (1) and is characterized in that a top cover (2) is fixed on the outer wall of the top of the shell (1) through bolts, a lithium battery body (3) is placed inside the shell (1), a heat conducting plate (25) is arranged at the top of the lithium battery body (3), a fixing plate (4) is fixed on the inner wall of the top cover (2) through bolts, an expansion airbag (5) is arranged on the inner wall of the fixing plate (4), the bottom outer wall of the expansion airbag (5) is attached to the top outer wall of the heat conducting plate (25), a contact piece (6) is arranged on the outer wall of the top of the expansion airbag (5), an induction piece (7) and a micro storage battery (8) are respectively arranged on the inner wall of the top cover (2), and heat dissipation fans (9) are fixed on the outer walls of two sides of the shell (1) through bolts, and the heat dissipation fan (9) and the induction sheet (7) are electrically connected with the micro storage battery (8) through leads.
2. The lithium battery with the overheat protection function according to claim 1, wherein the fixing seats (10) are installed on the inner walls of both sides of the housing (1) through bolts, the clamping plates (11) are arranged inside the housing (1), the lithium battery body (3) is clamped between the clamping plates (11), and the plug (20) is arranged on the outer wall of one side of the lithium battery body (3).
3. The lithium battery with overheat protection function according to claim 2, wherein the outer wall of the clamping plate (11) is fixed with a push block (12) by a bolt, and the push block (12) is slidably connected inside the fixing seat (10).
4. The lithium battery with the overheat protection function according to claim 3, wherein the outer wall of the top of the fixing seat (10) is in threaded connection with a long-neck bolt (14), the bottom end of the long-neck bolt (14) is fixed with a pressing block (15) through a bolt, the pressing block (15) is attached to the pushing block (12), and the inner wall of the fixing seat (10) is provided with a pull-back spring (13) connected with the pushing block (12).
5. A small lithium battery with overheat protection function according to claim 1 wherein the inner wall of the case (1) is fixed with a guide bar (16) by a bolt, and the outer wall of the side of the clamping plate (11) is fixed with a guide sleeve (17) by a bolt, the guide sleeve (17) being slidably connected to the outside of the guide bar (16).
6. The lithium battery with overheat protection function according to claim 1, wherein the sliding base (18) is fixed on the outer wall of one side of the housing (1) through bolts, the sliding base (18) is connected with a blocking cover (19) in a sliding manner, and the outer walls of the top and the bottom of the blocking cover (19) are provided with movable grooves (21).
7. The lithium battery as claimed in claim 6, wherein a latch (22) is slidably connected to the inside of the movable groove (21), a slot (23) is formed in the inner wall of the sliding seat (18), the latch (22) is slidably connected to the inside of the slot (23), and a latch spring (24) connected to the latch (22) is disposed on the inner wall of the movable groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220683759.4U CN217035781U (en) | 2022-03-25 | 2022-03-25 | Small lithium battery with overheat protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220683759.4U CN217035781U (en) | 2022-03-25 | 2022-03-25 | Small lithium battery with overheat protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035781U true CN217035781U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220683759.4U Active CN217035781U (en) | 2022-03-25 | 2022-03-25 | Small lithium battery with overheat protection function |
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| Country | Link |
|---|---|
| CN (1) | CN217035781U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116505174A (en) * | 2023-06-25 | 2023-07-28 | 深圳市沃品科技有限公司 | Lithium battery pack capable of being monitored on line |
| CN116666831A (en) * | 2023-07-31 | 2023-08-29 | 沧州师范学院 | Safety protection equipment of high-capacity battery pack |
-
2022
- 2022-03-25 CN CN202220683759.4U patent/CN217035781U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116505174A (en) * | 2023-06-25 | 2023-07-28 | 深圳市沃品科技有限公司 | Lithium battery pack capable of being monitored on line |
| CN116505174B (en) * | 2023-06-25 | 2023-11-14 | 深圳市沃品科技有限公司 | Lithium battery pack capable of being monitored on line |
| CN116666831A (en) * | 2023-07-31 | 2023-08-29 | 沧州师范学院 | Safety protection equipment of high-capacity battery pack |
| CN116666831B (en) * | 2023-07-31 | 2024-02-23 | 沧州师范学院 | Safety protection equipment of high-capacity battery pack |
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