CN213752946U

CN213752946U - Quick radiating large capacity coiling formula lithium cell

Info

Publication number: CN213752946U
Application number: CN202023032073.9U
Authority: CN
Inventors: 朱青松; 杨金龙; 王常军
Original assignee: Huizhou Wotaili Technology Co ltd
Current assignee: Huizhou Wotaili Technology Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-07-20
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a quick radiating large capacity coiling formula lithium cell, which comprises a housin, the last fixed surface of casing is connected with the top pad, the top outside surface of casing and the top that is located the top pad are equipped with the protective sheath, the inside fixedly connected with anodal ear of roof of casing, the inside below that just is located anodal ear in top of casing is equipped with the rubber bulb, the inside fixedly connected with negative pole ear of diapire of casing, the bottom inner wall fixedly connected with gasket of casing, the inside wall fixedly connected with heating panel of casing, the inner wall fixedly connected with insulating ring of heating panel. The utility model discloses, be equipped with heat dissipation ring and heat dissipation chamber, be favorable to thermal scattering and disappearing, and heat radiating area is great, is favorable to quick heat dissipation, utilizes out the gas net and ventilative net, is favorable to the inside impurity such as difficult entering dust of lithium cell, is favorable to the long-time use of lithium cell.

Description

Quick radiating large capacity coiling formula lithium cell

Technical Field

The utility model relates to a lithium cell technical field especially relates to a quick radiating large capacity coiling formula lithium cell.

Background

At present, the most used batteries are wound batteries and lithium batteries, which are a type of batteries using a lithium alloy metal oxide as a positive electrode material, graphite as a negative electrode material, and a nonaqueous electrolyte solution. The winding battery is a battery formed by assembling and forming battery cores in a winding mode. Compared with a lithium battery, the wound battery has ultra-strong high-rate discharge capacity, the lithium battery is wound according to the principle of positive-level constant volume and excessive negative electrode, the electrical property of a positive electrode material can be fully exerted by wrapping the positive electrode with the negative electrode, and the currently used wound lithium battery usually adopts a single-side lithium mode, namely a layer of lithium and nickel net is adopted as an anode, carbon is adopted as a cathode, and a diaphragm is adopted between the anode and the cathode for isolation.

The existing large-capacity winding type lithium battery has poor heat dissipation effect, low heat dissipation speed and complex structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a large-capacity winding type lithium battery capable of quickly dissipating heat.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-capacity winding type lithium battery capable of dissipating heat quickly comprises a shell, wherein a top pad is fixedly connected to the upper surface of the shell, a protective sleeve is arranged on the surface of the outer side of the top end of the shell and above the top pad, a positive lug is fixedly connected to the inside of the top wall of the shell, a rubber ball is arranged inside the top end of the shell and below the positive lug, and a negative lug is fixedly connected to the inside of the bottom wall of the shell;

the bottom inner wall fixedly connected with gasket of casing, the inside wall fixedly connected with heating panel of casing, the inner wall fixedly connected with insulator ring of heating panel, the inner wall fixedly connected with heat absorption ring of insulator ring, the first separation piece of inner wall fixedly connected with of heat absorption ring, the inner wall fixedly connected with negative pole piece of first separation piece, the inner wall fixedly connected with second separation piece of negative pole piece, the inner wall of second separation piece is equipped with the electrolyte ring, the inner wall fixedly connected with third separation piece of electrolyte ring, the positive plate of inner wall fixedly connected with of third separation piece, the inner wall of positive plate is equipped with the graphite ring, the inside of graphite ring is equipped with the heat dissipation chamber.

As a further description of the above technical solution:

and a sealing ring is arranged on the inner wall of the shell and above the graphite ring, and the sealing ring is made of shockproof sponge rubber.

As a further description of the above technical solution:

the inner wall of the shell is provided with a heat dissipation ring above the sealing ring, and a through hole is formed in the heat dissipation ring.

As a further description of the above technical solution:

the inside of through-hole is equipped with out the gas net, the heat dissipation chamber runs through the sealing washer and extends to the inside of heat dissipation ring.

As a further description of the above technical solution:

the lateral wall of casing is equipped with the round hole, the inside of round hole and with heating panel swing joint be equipped with the heat-conducting plate.

As a further description of the above technical solution:

the inside of round hole just is located the outside of heat-conducting plate and is equipped with ventilative net, ventilative net is equipped with the multiunit.

As a further description of the above technical solution:

the number of the air outlet nets is four, and the four air outlet nets are evenly distributed on the side wall of the shell.

As a further description of the above technical solution:

the bottom outer side surface of the shell is provided with a bottom sleeve, and the upper end of the shell is provided with a cylindrical bump.

The utility model discloses following beneficial effect has:

1. compared with the prior art, this quick radiating large capacity coiling formula lithium cell is equipped with radiating ring and heat dissipation chamber, is favorable to thermal scattering and disappearing, and heat radiating area is great, is favorable to dispelling the heat fast, utilizes air outlet net and ventilative net, is favorable to the inside impurity such as difficult entering dust of lithium cell, is favorable to long-time the using of lithium cell.

2. Compared with the prior art, this quick radiating large capacity coiling type lithium cell is equipped with the separation piece, is difficult for making the inside short circuit of lithium cell, is favorable to the long-time use of lithium cell, is equipped with the gasket, is favorable to preventing vibrations to the inside production influence of lithium cell, is difficult for making the inside not hard up of lithium cell, is equipped with the protective sheath, is favorable to protecting the outside non-deformable of lithium cell.

3. Compared with the prior art, this quick radiating large capacity coiling formula lithium cell is equipped with the heat-conducting plate and absorbs heat the ring, is favorable to the heat to shift from inside fast, is favorable to thermal concentrated heat dissipation, makes the radiating effect higher, is convenient for dispel the heat fast.

Drawings

Fig. 1 is a cross-sectional view of a large-capacity coiled lithium battery with rapid heat dissipation according to the present invention;

fig. 2 is a front view of a large-capacity winding lithium battery with rapid heat dissipation according to the present invention;

fig. 3 is a top view of a large-capacity wound lithium battery with rapid heat dissipation according to the present invention;

fig. 4 is a perspective view of the utility model provides a quick radiating large capacity winding type lithium battery.

Illustration of the drawings:

1. a housing; 2. a protective sleeve; 3. a first barrier sheet; 4. a rubber ball; 5. a positive tab; 6. a positive plate; 7. a third barrier sheet; 8. a top pad; 9. an air outlet net; 10. a heat dissipation plate; 11. a heat conducting plate; 12. a bottom cover; 13. a heat absorption ring; 14. a second barrier sheet; 15. an electrolyte ring; 16. a gasket; 17. a graphite ring; 18. a heat dissipation cavity; 19. a negative tab; 20. a breathable net; 21. an insulating ring; 22. a seal ring; 23. a heat dissipation ring; 24. and a negative plate.

Detailed Description

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the utility model provides a pair of quick radiating large capacity coiling formula lithium cell: the battery protection device comprises a shell 1, wherein a top pad 8 is fixedly connected to the upper surface of the shell 1, a protective sleeve 2 is arranged on the outer surface of the top end of the shell 1 and above the top pad 8, a positive lug 5 is fixedly connected to the inner portion of the top wall of the shell 1, a rubber ball 4 is arranged on the inner portion of the top end of the shell 1 and below the positive lug 5, and a negative lug 19 is fixedly connected to the inner portion of the bottom wall of the shell 1;

bottom inner wall fixedly connected with gasket 16 of casing 1, casing 1's inside wall fixedly connected with heating panel 10, the inner wall fixedly connected with insulator ring 21 of heating panel 10, the inner wall fixedly connected with heat absorption ring 13 of insulator ring 21, the first separation piece 3 of the inner wall fixedly connected with of heat absorption ring 13, the inner wall fixedly connected with negative pole piece 24 of first separation piece 3, the inner wall fixedly connected with second separation piece 14 of negative pole piece 24, the inner wall of second separation piece 14 is equipped with electrolyte ring 15, the inner wall fixedly connected with third separation piece 7 of electrolyte ring 15, the inner wall fixedly connected with positive plate 6 of third separation piece 7, the inner wall of positive plate 6 is equipped with graphite ring 17, graphite ring 17's inside is equipped with heat dissipation chamber 18, heat dissipation chamber 18 runs through sealing washer 22 and extends to heat dissipation ring 23's inside.

The inner wall of casing 1 and the top that is located graphite ring 17 are equipped with sealing washer 22, sealing washer 22's material is shockproof sponge rubber, the inner wall of casing 1 and the top that is located sealing washer 22 are equipped with cooling ring 23, the inside of cooling ring 23 is equipped with the through-hole, the inside of through-hole is equipped with air outlet net 9, the lateral wall of casing 1 is equipped with the round hole, the inside of round hole and be equipped with heat-conducting plate 11 with heating panel 10 swing joint, the inside of round hole and the outside that is located heat-conducting plate 11 are equipped with ventilative net 20, ventilative net 20 is equipped with the multiunit, air outlet net 9's quantity is four, four air outlet net 9 are located casing 1's lateral wall evenly distributed, casing 1's bottom outside surface is equipped with end cover 12, casing 1's upper end is cylindrical lug.

The working principle is as follows: the lithium battery can generate heat when in use, is not beneficial to reaction, is not beneficial to the use of the lithium battery, is easy to generate short circuit, is beneficial to the dissipation of heat by utilizing the heat dissipation ring 23 and the heat dissipation cavity 18, has larger heat dissipation area, is beneficial to quick heat dissipation, is beneficial to the difficult entry of impurities such as dust and the like in the lithium battery by utilizing the air outlet net 9 and the breathable net 20, is beneficial to the long-time use of the lithium battery, is beneficial to the separation of the positive plate 6, the negative plate 24 and the electrolyte ring 15 by utilizing the separation sheet, is not easy to cause the internal short circuit of the lithium battery, is beneficial to the long-time use of the lithium battery, is provided with the gasket 16, is beneficial to preventing the vibration from influencing the internal part of the lithium battery, is not easy to cause the internal loosening of the lithium battery, is beneficial to the protection of the external part of the lithium battery from being difficult to deform, is beneficial to the quick transfer of the heat from the internal part by the heat conduction plate 11 and the heat absorption ring 13, is beneficial to the concentrated heat dissipation, and leads the heat dissipation effect to be higher, is convenient for fast heat dissipation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a quick radiating large capacity coiling formula lithium cell, includes casing (1), its characterized in that: the upper surface of the shell (1) is fixedly connected with a top pad (8), the outer side surface of the top end of the shell (1) and positioned above the top pad (8) are provided with a protective sleeve (2), the top wall of the shell (1) is fixedly connected with a positive lug (5), the top end of the shell (1) is internally provided with a rubber ball (4) and positioned below the positive lug (5), and the bottom wall of the shell (1) is fixedly connected with a negative lug (19);

the bottom inner wall of the shell (1) is fixedly connected with a gasket (16), the inner side wall of the shell (1) is fixedly connected with a heat dissipation plate (10), the inner wall of the heat dissipation plate (10) is fixedly connected with an insulating ring (21), the inner wall of the insulating ring (21) is fixedly connected with a heat absorption ring (13), the inner wall of the heat absorption ring (13) is fixedly connected with a first barrier sheet (3), the inner wall of the first barrier sheet (3) is fixedly connected with a negative plate (24), the inner wall of the negative plate (24) is fixedly connected with a second barrier sheet (14), the inner wall of the second barrier sheet (14) is provided with an electrolyte ring (15), the inner wall of the electrolyte ring (15) is fixedly connected with a third barrier sheet (7), the inner wall of the third barrier sheet (7) is fixedly connected with a positive plate (6), the inner wall of the positive plate (6) is provided with a graphite ring (17), and a heat dissipation cavity (18) is arranged in the graphite ring (17).

2. A rapidly heat dissipating large capacity rolled lithium battery as claimed in claim 1, wherein: and a sealing ring (22) is arranged on the inner wall of the shell (1) and above the graphite ring (17), and the sealing ring (22) is made of shockproof sponge rubber.

3. A rapidly heat dissipating large capacity rolled lithium battery as claimed in claim 2, wherein: the inner wall of the shell (1) is provided with a heat dissipation ring (23) above the sealing ring (22), and a through hole is formed in the heat dissipation ring (23).

4. A rapidly heat dissipating large capacity rolled lithium battery as claimed in claim 3, wherein: an air outlet net (9) is arranged inside the through hole, and the heat dissipation cavity (18) penetrates through the sealing ring (22) and extends to the inside of the heat dissipation ring (23).

5. A rapidly heat dissipating large capacity rolled lithium battery as claimed in claim 1, wherein: the side wall of the shell (1) is provided with a round hole, and a heat conducting plate (11) is arranged inside the round hole and movably connected with the heat radiating plate (10).

6. A rapidly dissipating high capacity coiled lithium battery as claimed in claim 5, wherein: the inside of the round hole and the outer side of the heat conducting plate (11) are provided with a plurality of groups of breathable nets (20).

7. A fast heat dissipating high capacity rolled lithium battery as claimed in claim 4, wherein: the number of the air outlet nets (9) is four, and the four air outlet nets (9) are uniformly distributed on the side wall of the shell (1).

8. A rapidly heat dissipating large capacity rolled lithium battery as claimed in claim 1, wherein: the bottom end outer side surface of the shell (1) is provided with a bottom sleeve (12), and the upper end of the shell (1) is provided with a cylindrical bump.