CN210805959U

CN210805959U - Lithium battery with overheat protection

Info

Publication number: CN210805959U
Application number: CN201921988093.8U
Authority: CN
Inventors: 刘来兵; 李雄鹏; 邬小刚
Original assignee: Shenzhen Yingtelai Industrial Co ltd
Current assignee: Shenzhen Yingtelai Industrial Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-06-19
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a take overheat protection's lithium cell, including the protecting crust, the inside of protecting crust is provided with the lithium cell, the electrode that the top fixedly connected with symmetry of lithium cell set up, surface middle part fixedly connected with U type cassette on the inside of protecting crust, lithium cell fixed connection is in the inside of U type cassette, the top cap is installed on the top of protecting crust, and the electrode vertically runs through in the top cap, first mounting groove has been seted up to one side lower extreme of protecting crust, the second mounting groove has been seted up to the opposite side upper end of protecting crust, the inside fixedly connected with axial fan of first mounting groove, the inside fixedly connected with radiator fan of second mounting groove. The utility model provides a battery generate heat and make battery temperature rise in power supply or charging process, can burn out the battery when the battery temperature that does not have overheat protection device is too high, arouses the battery explosion even, causes the problem of casualties, and the radiating effect is good, and is efficient, simple structure, convenient to use.

Description

Lithium battery with overheat protection

Technical Field

The utility model relates to a relevant technical field of lithium cell specifically is a take overheat protection's lithium cell.

Background

With the development of science and technology, the battery application field is more and more, most electronic products can not be powered by the battery, for example, the electronic watch, the mobile phone, the notebook computer and the electric vehicle which are commonly used can not be powered by the battery, the communication equipment can not be powered by the power supply facility, the power supply facility is a movable storage battery generally, the storage battery of the existing mobile communication equipment is a lithium battery generally, and the lithium battery has some defects that the battery can generate heat after being powered or charged for a period of time to cause the temperature of the battery to rise, and the battery can be burnt out even to cause the explosion of the battery when the temperature of the battery without an overheat protection device is too high, so that casualties are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take overheat protection's lithium cell to current battery that proposes in solving above-mentioned background art can generate heat and make battery temperature rise in power supply or charging process, burns out the battery easily, arouses the battery explosion even, causes the problem of casualties.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take overheat protection's lithium cell, includes the protecting crust, the inside of protecting crust is provided with the lithium cell, the electrode that the top fixedly connected with symmetry of lithium cell set up, state the inside upper surface middle part fixedly connected with U type cassette of protecting crust, lithium cell fixed connection be in the inside of U type cassette, the top cap is installed on the top of protecting crust, just the electrode vertically run through in the top cap, first mounting groove has been seted up to one side lower extreme of protecting crust, the second mounting groove has been seted up to the opposite side upper end of protecting crust, the inside fixedly connected with axial fan of first mounting groove, the inside fixedly connected with radiator fan of second mounting groove, the inside of first mounting groove correspond one side of axial fan with one side that the inside of second mounting groove corresponds radiator fan all sets up and is connected with the filter screen, the inside of first mounting groove with the apron is all installed to one side that the filter screen to the inside of second mounting groove.

Preferably, the top middle part of two apron has all seted up the draw-in groove, two the equal fixedly connected with locating piece in bottom lower surface middle part of apron, first mounting groove with the constant head tank that matches with the locating piece is seted up to the position that corresponds the locating piece on the second mounting groove.

Preferably, the two sides of the protective shell are provided with grooves corresponding to the upper parts of the first mounting groove and the second mounting groove, the inner parts of the grooves are spliced with fixing rods, the fixing rods longitudinally penetrate through the protective shell and extend to the inner parts of the first mounting groove and the second mounting groove, and the fixing rods are clamped with the clamping grooves.

Preferably, sliding grooves are formed in the two sides of the protective shell and correspond to the upper portions of the fixing rods, sliding rods are inserted into the sliding grooves and longitudinally penetrate through the sliding grooves and are fixedly connected with the bottom ends of the fixing rods, and springs are arranged on the top ends of the sliding rods and correspond to the sliding grooves.

Preferably, a plurality of through holes are formed in the cover plates, and concave hole handles are formed in the cover plates above the corresponding through holes.

Preferably, the side walls of the inner part of the protective shell are fixedly connected with radiating fins.

Preferably, the protective shell and the top cover are detachably connected through screws.

Preferably, the protective shell and the cover plate are clamped through a fixing rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model can effectively increase the heat dissipation efficiency in the protective shell by forming air convection through the cooling fan and the axial fan according to the principle that hot air rises and cold air falls according to the principle that hot air is discharged by the cooling fan and the axial fan, thereby effectively improving the service life of the lithium battery, simultaneously, the arrangement of the cooling fins can effectively increase the heat dissipation area, enhance the heat dissipation effect during air convection, accelerate the heat dissipation efficiency, solve the problem that the temperature of the battery rises due to the heating of the lithium battery, burn out the battery when the temperature of the battery without an overheat protection device is too high, and even cause the explosion of the battery, causing the problem of casualty.

2. The utility model discloses, through upwards promoting the dead lever, drive the slide bar and remove, make the spring compress, and then make dead lever and draw-in groove separate, then utilize the shrinkage pool handle to take out the apron from first mounting groove or second mounting groove, take out the inside filter screen of first mounting groove or second mounting groove again and clear up or change, treat to clear up or change the back, put into the inside of first mounting groove and second mounting groove with the filter screen, insert the constant head tank with the locating piece again, loosen the dead lever, under the elastic action of spring, make the slide bar remove downwards, drive the inside that the dead lever got into the draw-in groove, realize the joint, the installation is convenient with the dismantlement, moreover, the steam generator is simple in structure, and convenient for operation, and convenient for use, and the practicability is improved.

Drawings

FIG. 1 is a sectional view of the front view structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the connection structure of the mounting groove and the cover plate of the present invention;

fig. 4 is a schematic view of the cover plate structure of the present invention.

In the figure: 1. a protective shell; 2. a U-shaped card seat; 3. a lithium battery; 4. an electrode; 5. a top cover; 6. a heat sink; 7. a first mounting groove; 8. a heat radiation fan; 9. a filter screen; 10. a cover plate; 11. a card slot; 12. positioning blocks; 13. a handle with concave holes; 14. a through hole; 15. positioning a groove; 16. a groove; 17. fixing the rod; 18. a sliding groove; 19. a slide bar; 20. a spring; 21. an axial flow fan; 22. and a second mounting groove.

Detailed Description

In order to avoid current battery to generate heat and make battery temperature rise in power supply or charging process, can burn out the battery when the temperature is too high, arouse the battery explosion even, cause the problem of casualties, the embodiment of the utility model provides a take overheat protection's lithium cell. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present embodiment provides a lithium battery with overheat protection, which includes a protective casing 1, a lithium battery 3 is disposed inside the protective casing 1, electrodes 4 symmetrically disposed are fixedly connected to the top end of the lithium battery 3, a U-shaped socket 2 is fixedly connected to the middle portion of the inner upper surface of the protective casing 1, the lithium battery 3 is fixedly connected inside the U-shaped socket 2, a top cover 5 is installed at the top end of the protective casing 1, the electrodes 4 longitudinally penetrate through the top cover 5, a first mounting groove 7 is formed at the lower end of one side of the protective casing 1, a second mounting groove 22 is formed at the upper end of the other side of the protective casing 1, an axial flow fan 21 is fixedly connected inside the first mounting groove 7, a cooling fan 8 is fixedly connected inside the second mounting groove 22, a filter screen 9 is disposed inside the first mounting groove 7 corresponding to one side of the axial flow fan 21 and one side of the, cover plates 10 are respectively arranged in the first mounting groove 7 and the second mounting groove 22 corresponding to one side of the filter screen 9, clamping grooves 11 are respectively arranged in the middle of the top ends of the two cover plates 10, positioning blocks 12 are respectively fixedly connected to the middle of the lower surfaces of the bottom ends of the two cover plates 10, positioning grooves 15 matched with the positioning blocks 12 are respectively arranged on the first mounting groove 7 and the second mounting groove 22 corresponding to the positions of the positioning blocks 12, grooves 16 are respectively arranged on the two sides of the protective shell 1 corresponding to the upper parts of the first mounting groove 7 and the second mounting groove 22, fixing rods 17 are respectively inserted into the two grooves 16, the fixing rods 17 longitudinally penetrate through the protective shell 1 and extend into the first mounting groove 7 and the second mounting groove 22, the fixing rods 17 are clamped with the clamping grooves 11, sliding grooves 18 are respectively arranged on the two sides of the protective shell 1 corresponding to the upper parts of the fixing rods 17, sliding rods 19 are respectively inserted into the two sliding grooves 18, and the sliding rods 19 longitudinally penetrate, the top of two slide bars 19 is provided with spring 20 corresponding to the inside of sliding tray 18, has all seted up a plurality of through-hole 14 on two apron 10, and shrinkage pool handle 13 has all been seted up to the top that corresponds through-hole 14 on two apron 10.

In the embodiment, when the lithium battery protection device is used, firstly, the heat dissipation fan 8 is connected with the lithium battery 3 and an external power supply through a lead, when the lithium battery 3 is overheated in the charging and discharging processes of the lithium battery 3, the heat dissipation fan 8 and the axial flow fan 21 are controlled to rotate, according to the principle that hot air rises and cold air descends, the axial flow fan 21 is used for sucking external cold air through the through hole 14 in the cover plate 10, the external cold air is filtered through the filter screen 9 and finally enters the protection shell 1, then the heat generated by the lithium battery 3 in the protection shell 1 is discharged through the through hole 14 and filtered through the filter screen 9, dust in the air is effectively prevented from entering the protection shell 1 to cause accumulation and influence the heat dissipation effect, air convection is formed through the heat dissipation fan 8 and the axial flow fan 21, and the heat dissipation efficiency in the protection shell 1 is effectively accelerated, the service life of the lithium battery 3 is prolonged, after long-time use, when the filter screen 9 needs to be replaced, the fixing rod 17 is pushed upwards manually to drive the sliding rod 19 to move, the spring 20 is compressed, and then the fixing rod 17 is separated from the clamping groove 11, then the cover plate 10 is taken out from the inside of the first mounting groove 7 or the second mounting groove 22 by using the concave hole handle 13, then the filter screen 9 in the inside of the first mounting groove 7 or the second mounting groove 22 is taken out for cleaning or replacement, after cleaning or replacement, the filter screen 9 is placed in the inside of the first mounting groove 7 and the second mounting groove 22, then the positioning block 12 on the cover plate 10 is inserted into the positioning groove 15, the fixing rod 17 is loosened manually, the sliding rod 19 moves downwards under the elastic action of the spring 20, the fixing rod 17 is driven to enter the inside of the clamping groove 11, the clamping is realized, the structure is simple, and the operation is convenient, convenient to use, improved the practicality.

Example 2

Referring to fig. 1, a further improvement is made on the basis of embodiment 1: equal fixedly connected with fin 6 on the inside lateral wall of protecting crust 1, through the setting of fin 6, can effectual increase inside heat radiating area, accelerate inside heat dissipation, improve the radiating effect, protecting crust 1 can be dismantled through the screw with top cap 5 and be connected, through detachable top cap 5, be convenient for maintain inside, protecting crust 1 passes through dead lever 17 joint with apron 10, protecting crust 1 and apron 10 through the joint, be convenient for apron 10's installation and dismantlement, convenient to use.

The model of the heat dissipation fan 8 is FH5020, and the model of the axial flow fan 21 is FS 12038.

In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take overheat protection's lithium cell, includes protecting crust (1), the inside of protecting crust (1) is provided with lithium cell (3), electrode (4) that the top fixedly connected with symmetry of lithium cell (3) set up, its characterized in that: the middle part of the inner upper surface of the protective shell (1) is fixedly connected with a U-shaped clamping seat (2), the lithium battery (3) is fixedly connected inside the U-shaped clamping seat (2), the top end of the protective shell (1) is provided with a top cover (5), the electrode (4) vertically penetrates through the top cover (5), the lower end of one side of the protective shell (1) is provided with a first mounting groove (7), the upper end of the other side of the protective shell (1) is provided with a second mounting groove (22), the inner part of the first mounting groove (7) is fixedly connected with an axial fan (21), the inner part of the second mounting groove (22) is fixedly connected with a cooling fan (8), one side of the inner part of the first mounting groove (7), which corresponds to the axial fan (21), and one side of the inner part of the second mounting groove (22), which corresponds to the cooling fan (8), are both provided with a filter, the cover plate (10) is arranged inside the first mounting groove (7) and on one side, corresponding to the filter screen (9), of the inside of the second mounting groove (22).

2. A lithium battery with overheat protection as claimed in claim 1, wherein: two draw-in groove (11), two have all been seted up at the top middle part of apron (10) the equal fixedly connected with locating piece (12) in bottom lower surface middle part of apron (10), first mounting groove (7) with locating piece (12) are seted up in the position that corresponds on second mounting groove (22) and locating slot (15) that match with locating piece (12).

3. A lithium battery with overheat protection as claimed in claim 2, wherein: the two sides of the protective shell (1) are provided with grooves (16) above the first mounting groove (7) and the second mounting groove (22), fixing rods (17) are inserted into the grooves (16), the fixing rods (17) longitudinally penetrate through the protective shell (1) and extend into the first mounting groove (7) and the second mounting groove (22), and the fixing rods (17) are connected with the clamping grooves (11) in a clamped mode.

4. A lithium battery with overheat protection as claimed in claim 1, wherein: sliding grooves (18) are formed in the two sides of the protective shell (1) and correspond to the upper portion of the fixing rod (17), sliding rods (19) are inserted into the sliding grooves (18), the sliding rods (19) longitudinally penetrate through the sliding grooves (18) and are fixedly connected with the bottom ends of the fixing rods (17), and springs (20) are arranged in the top ends of the sliding rods (19) and correspond to the sliding grooves (18).

5. A lithium battery with overheat protection as claimed in claim 1, wherein: two all seted up a plurality of through-hole (14) on apron (10), two shrinkage pool handle (13) have all been seted up to the top that corresponds through-hole (14) on apron (10).

6. A lithium battery with overheat protection as claimed in claim 1, wherein: all fixedly connected with fin (6) on the inside lateral wall of protecting crust (1).

7. A lithium battery with overheat protection as claimed in claim 1, wherein: the protective shell (1) is detachably connected with the top cover (5) through screws.

8. A lithium battery with overheat protection as claimed in claim 1, wherein: the protective shell (1) is clamped with the cover plate (10) through a fixing rod (17).