CN217280902U - Lithium cell of convenient equipment - Google Patents

Abstract

The utility model discloses a lithium cell of convenient equipment, including the cylinder casing, be located the lithium cell body in the cylinder casing, be located the insulating layer between cylinder casing and the lithium cell body and be located the heat-conducting layer between insulating layer and the lithium cell body, the cylinder casing is including being located the heating panel in the cylinder casing, and the heat-conducting layer has heat conduction portion, and heat conduction portion passes insulating layer and heating panel surface contact. The utility model discloses an in the spread groove on the cylinder casing that moves out another lithium cell from bottom to top with the extension connecting portion on the cylinder casing of a lithium cell, in order to realize two liang or dismantlement, carry out the equipment or the dismantlement of a plurality of lithium cells according to actual need, convenient and fast, and conduct the inside heat energy of lithium cell to heat conduction portion through the heat-conducting layer, heat conduction portion will conduct the heat energy of coming again and give the heating panel, the heating panel is in order to dispel the heat to heat energy, in order to reduce the inside temperature of lithium cell, and then reduce the possibility of lithium cell explosion, increase the security of using this lithium cell.

Description

Lithium cell of convenient equipment

Technical Field

The utility model belongs to the technical field of the lithium cell, in particular to lithium cell of convenient equipment.

Background

Among all forms of energy, electric energy is the easiest, cleanest, environmentally friendly, and most efficient energy source. Batteries are the best means of storing electrical energy. Among all battery products, lithium batteries are the youngest (only 21 years of history) and most advanced energy products in the world, with the highest technical gold content and the highest energy density, and are widely used in electric vehicles.

The existing lithium battery has some problems:

the existing cylindrical lithium battery is assembled into a lithium battery pack, and the lithium battery pack cannot be reassembled after being disassembled and assembled, so that the lithium battery pack is inconvenient to assemble and disassemble and cannot meet the actual use requirements of people;

and do not possess thermal-insulated and heat dissipation function, when the lithium cell was in overdischarge, overcharge and short circuit, the inside temperature of lithium cell can rise fast, caused the thermal runaway very easily, and lead to the lithium cell to explode, very easily take place danger.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a lithium cell of convenient equipment that can solve above-mentioned problem.

The utility model provides a lithium cell of convenient equipment, includes the cylinder casing, is located lithium cell in the cylinder casing, is located the cylinder casing with insulating layer between the lithium cell and being located the insulating layer with heat-conducting layer between the lithium cell, the cylinder casing is including being located heating panel in the cylinder casing, the heat-conducting layer has the heat-conducting part, the heat-conducting part passes the insulating layer with heating panel surface contact, the heating panel prolongs the length that cylinder casing circumferencial direction set up and set up does the fourth of cylinder casing circumference size, be equipped with two extension connecting portion and two spread grooves of even setting on the cylinder casing lateral wall, every extend connecting portion and every the spread groove cooperatees, two extend connecting portion and be located the both ends of heating panel.

Further, the heat insulation layer is made of aerogel.

Further, lithium cell body has anodal and negative pole, anodal wearing out cylinder casing one end in outside the cylinder casing, the negative pole in the cylinder casing other end just the negative pole surface with cylinder casing other end surface parallel and level, the cylinder casing still include integrated into one piece in the inboard pressure release ring of cylinder casing, pressure release ring with lithium cell body the negative pole is sealed to be set up.

Compared with the prior art, the utility model provides a lithium cell of convenient equipment from top to bottom corresponds the spread groove on the cylinder casing that inserts spread groove on the cylinder casing of another lithium cell or the spread groove on the cylinder casing of another lithium cell of extension connecting portion from bottom to top on the cylinder casing of a lithium cell through the cylinder casing with a lithium cell, in order to realize two liang of equipment or dismantlements, carry out the equipment or the dismantlement of a plurality of lithium cells according to actual need, convenient and fast, and conduct the inside heat energy of lithium cell to heat conduction portion through the heat-conducting layer, the heat conduction portion will conduct the heat energy of coming again and give the heating panel, the heating panel dispels the heat with heat energy, with the inside temperature of reduction lithium cell, and then reduce the possibility of lithium cell explosion, increase the security of using this lithium cell.

Drawings

Fig. 1 is a schematic structural diagram of a lithium battery convenient to assemble according to the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is a top view of a lithium battery that is easy to assemble.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to fig. 3, it is a schematic structural diagram of a lithium battery convenient for assembly according to the present invention. A lithium battery convenient to assemble comprises a cylindrical shell 10, a lithium battery body 20 positioned in the cylindrical shell 10, a heat insulation layer 30 positioned between the cylindrical shell 10 and the lithium battery body 20, and a heat conduction layer 40 positioned between the heat insulation layer 30 and the lithium battery body 20, the cylindrical housing 10 comprises a heat sink 11 inside the cylindrical housing 10, the heat conductive layer 40 has a heat conductive portion 41, the heat conducting part 41 penetrates through the heat insulating layer 30 to contact with the surface of the heat dissipation plate 11, the heat dissipation plate 11 is arranged along the circumferential direction of the cylindrical shell 10, the length of the heat dissipation plate 11 is one fourth of the circumferential size of the cylindrical shell 10, be equipped with two extension connecting portion 13 and two spread groove 14 that evenly set up on the cylinder casing 10 lateral wall, every extension connecting portion 13 with every spread groove 14 cooperatees, two extension connecting portion 13 is located the both ends of heating panel 11.

The lithium battery pack can be formed by matching a plurality of lithium batteries; wherein, extension connecting portion 13 on the cylindrical shell 10 of a lithium cell from top to bottom corresponds and inserts the spread groove 14 on the cylindrical shell 10 of another lithium cell or the extension connecting portion 13 on the cylindrical shell 10 of a lithium cell from bottom to top moves out the spread groove 14 on the cylindrical shell 10 of another lithium cell to realize two liang of equipment or dismantlements, carry out the equipment or the dismantlement of a plurality of lithium cells according to actual need, convenient and fast.

When the lithium battery body 20 is over-discharged, over-charged and short-circuited, a large amount of heat energy is generated by the lithium battery body 20, so that the temperature of the lithium battery body 20 rises, the heat energy is conducted to the heat conducting part 41 through the heat conducting layer 40, the heat conducting part 41 conducts the conducted heat energy to the heat dissipation plate 11, and the heat dissipation plate 11 dissipates the heat energy to reduce the temperature inside the lithium battery, so that the possibility of explosion of the lithium battery is reduced, and the safety of using the lithium battery is improved.

Simultaneously, the in-process of normal use, the normal heat energy that produces of lithium cell is isolated in cylinder casing 10 by insulating layer 30 for the casing can not be too overheated, and the user can normally take this lithium cell, improves the practicality, and heating panel 11 also dispels the heat to the heat energy that heat-conducting layer 40 conduction was come, further makes the casing can not too overheated.

The heat dissipation plate 11 is disposed around a quarter of the circumference of the cylindrical case 10, which relatively increases the heat dissipation area of the heat dissipation plate 11 and improves the heat dissipation efficiency.

The thermal insulation layer 30 is made of aerogel. The aerogel has a remarkable heat insulation effect, so that the aerogel is used as the heat insulation material of the heat insulation layer 30.

Lithium cell 20 has anodal 21 and negative pole 22, anodal 21 wears out cylinder casing 10 one end in outside cylinder casing 10, negative pole 22 in the cylinder casing 10 other end just negative pole 22 surface with cylinder casing 10 other end surface parallel and level, cylinder casing 10 still include integrated into one piece in the inboard pressure release ring 12 of cylinder casing 10, pressure release ring 12 with lithium cell 20 negative pole 22 sets up sealedly. When lithium cell 20 overdischarge, overcharge and short circuit, its self produces a large amount of heat energy to make lithium cell 20 internal pressure rise fast, the gas of its internal pressure can break through and leak clamping ring 12, outside the gaseous discharge lithium cell of pressure, with the inside pressure of reduction lithium cell, and then reduce the possibility of lithium cell explosion, further increase the security of using this lithium cell.

Compared with the prior art, the utility model provides a lithium cell of convenient equipment from top to bottom corresponds extension connecting portion 13 on the cylindrical shell 10 with a lithium cell and inserts spread groove 14 on the cylindrical shell 10 of another lithium cell or the extension connecting portion 13 on the cylindrical shell 10 of a lithium cell from bottom to top moves out spread groove 14 on the cylindrical shell 10 of another lithium cell, in order to realize two liang of equipment or dismantlements, carry out the equipment or the dismantlement of a plurality of lithium cells as required, convenient and fast, and conduct the inside heat energy of lithium cell to heat conduction portion 41 through heat-conducting layer 40, heat conduction portion 41 is the heat energy conduction of conducting coming again for heating panel 11, heating panel 11 dispels the heat with heat energy, in order to reduce the inside temperature of lithium cell, and then reduce the possibility of lithium cell explosion, increase the security of using this lithium cell.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims (3)

1. A lithium battery convenient to assemble is characterized by comprising a cylindrical shell, a lithium battery body positioned in the cylindrical shell, a heat insulation layer positioned between the cylindrical shell and the lithium battery body and a heat conduction layer positioned between the heat insulation layer and the lithium battery body, the cylindrical shell comprises a heat dissipation plate positioned in the cylindrical shell, the heat conduction layer is provided with a heat conduction part, the heat conducting part penetrates through the heat insulating layer to be in contact with the surface of the heat radiating plate, the heat radiating plate is arranged along the circumferential direction of the cylindrical shell, the length of the heat radiating plate is one fourth of the circumferential size of the cylindrical shell, the cylindrical shell is characterized in that two extending connecting parts and two connecting grooves are uniformly arranged on the outer side wall of the cylindrical shell, each extending connecting part is matched with each connecting groove, and the two extending connecting parts are located at two ends of the heating panel.

2. The lithium battery of claim 1, wherein the thermal insulation layer is made of aerogel.

3. The lithium battery convenient to assemble as claimed in claim 1, wherein the lithium battery body has a positive electrode and a negative electrode, the positive electrode penetrates out of one end of the cylindrical shell and is located outside the cylindrical shell, the negative electrode is located at the other end of the cylindrical shell, and the surface of the negative electrode is flush with the surface of the other end of the cylindrical shell, the cylindrical shell further comprises a pressure relief ring integrally formed inside the cylindrical shell, and the pressure relief ring is hermetically arranged with the negative electrode of the lithium battery body.

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