Constant-voltage lithium battery with charging port

Abstract

The utility model relates to a constant voltage lithium battery with a charging port, which comprises a heat dissipation shell and an elastic heat conduction block, the heat dissipation shell is positioned below the shoulder height of a battery cell component, the periphery of the battery cell component is connected with the heat dissipation shell through the elastic heat conduction block, and the heat dissipation shell is coated on the periphery of the battery cell component. The elastic heat conduction block is clamped between the battery cell assembly and the heat dissipation shell, and a heat insulation handle is arranged on the heat dissipation shell; the battery cell assembly is protected, on one hand, heat dissipation of the battery cell assembly is facilitated, the heat dissipation effect of the battery cell assembly is improved, the service life of the battery cell assembly is prolonged, on the other hand, anti-collision protection is achieved on the battery cell assembly, the buffering effect can be achieved even if the side face is collided in the using process, and the service life of the battery cell assembly is further prolonged; and the product is convenient to carry and cannot be influenced by heat.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of constant voltage lithium battery with charging port, especially to a constant voltage lithium battery with charging port. BACKGROUND

[0002] "Lithium battery", a kind of lithium metal or lithium alloy as positive / negative electrode material, using non-aqueous electrolyte solution battery. In 1912, lithium metal battery was first proposed and studied by Gilbert N. Lewis. In the 1970s, M. S. Whittingham proposed and began to study lithium ion battery.

[0003] Due to the chemical properties of lithium metal is very active, the processing, preservation, use of lithium metal, the environment requires very high. With the development of science and technology, lithium battery has become mainstream.

[0004] The existing lithium battery, such as the constant voltage lithium battery with charging port disclosed on July 14, 2023, although it has charging function, but the cell assembly is exposed outside, without any protection structure, which cannot effectively prevent collision, and in the charging process, the cell assembly will generate heat, lack of heat dissipation structure to quickly export its heat, greatly affecting its service life.

[0005] Therefore, in the utility model patent application, the applicant carefully studies a constant voltage lithium battery with charging port to solve the above problems. CONTENT OF THE UTILITY MODEL

[0006] The utility model mainly aims at providing a constant voltage lithium battery with charging port, which realizes the protection of the cell assembly. On the one hand, it is convenient for the heat dissipation of the cell assembly, improves the heat dissipation effect, prolongs the service life, on the other hand, it protects the cell assembly from collision. Even if the side is collided during use, it will also play a buffering role, further prolonging the service life, and it is beneficial to carry the product and will not be affected by heat.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A constant voltage lithium battery with charging port, comprising cell assembly, voltage reduction circuit board, charging interface, elastic connecting piece, insulating support and metal sleeve, the charging interface is installed at the bottom of the voltage reduction circuit board, and the opening of the charging interface is arranged outward, the voltage reduction circuit board is installed at the top of the insulating support to form an assembly, the assembly is embedded in the upper part of the metal sleeve, the lower part of the metal sleeve is installed at the shoulder height of the cell assembly, one end of the elastic connecting piece is connected with the voltage reduction circuit board, and the other end is connected with the positive electrode of the cell assembly;

[0009] The heat dissipation shell and the elastic heat conduction block are arranged below the shoulder height of the battery cell assembly, the periphery of the battery cell assembly is connected with the heat dissipation shell through the elastic heat conduction block, the heat dissipation shell is wrapped on the periphery of the battery cell assembly, the elastic heat conduction block is arranged between the battery cell assembly and the heat dissipation shell, and the heat insulation handle is arranged on the heat dissipation shell.

[0010] As a preferred solution, the elastic heat conduction block is a sandwich structure, and the sandwich structure comprises an inner heat conduction plate, an elastic porous material layer and an outer heat conduction plate arranged in sequence from inside to outside.

[0011] The inner heat conduction plate is connected with the battery cell assembly, and the outer heat conduction plate is connected with the heat dissipation shell.

[0012] As a preferred solution, the inner heat conduction plate is connected with the battery cell assembly through a first heat conduction interface material layer.

[0013] As a preferred solution, the heat conduction interface material in the first heat conduction interface material layer is a heat conduction interface material with adhesion.

[0014] As a preferred solution, the elastic porous material in the elastic porous material layer is metal rubber.

[0015] As a preferred solution, the outer heat conduction plate is connected with the heat dissipation shell through a second heat conduction interface material layer.

[0016] As a preferred solution, a groove is concavely arranged on the outer side of the heat dissipation shell, and the heat insulation handle is arranged in the groove and accommodated in the groove.

[0017] The utility model discloses a battery cell assembly protection device, which comprises a heat dissipation shell and an elastic heat conduction block.

[0018] The utility model discloses a battery cell assembly protection device, which comprises a heat dissipation shell and an elastic heat conduction block.

[0019] Secondly, through the design of the groove, the heat insulation handle can be hidden in the groove when not in use, which protects the heat insulation handle and avoids collision.

[0020] To make the disclosure more clear, the structure characteristics and effects of the utility model will be described in detail below with reference to the drawings and specific embodiments. DRAWINGS

[0021] Figure 1 is the sectional view of the embodiment of the utility model.

[0022] Figure 2 is Figure 1 Enlarged structure schematic view of A in the figure.

[0023] Figure 3 Enlarged structure schematic view of A in the figure.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 11, cell assembly 111, shoulder height

[0026] 12, voltage reduction circuit board 13, charging interface

[0027] 14, elastic connecting piece 15, insulating support

[0028] 16, metal sleeve

[0029] 20, heat dissipation shell

[0030] 21, groove 22, heat insulation handle

[0031] 30, elastic heat conducting block

[0032] 31, inner heat conducting plate

[0033] 32, elastic porous material layer 33, outer heat conducting plate

[0034] 41, first heat conducting interface material layer 42, second heat conducting interface material layer. DETAILED DESCRIPTION

[0035] The utility model will be further described below in combination with the drawings and specific embodiments.

[0036] As Figures 1 to 3 shown, a constant voltage lithium battery with a charging port, comprising cell assembly 11, voltage reduction circuit board 12, charging interface 13, elastic connecting piece 14, insulating support 15, metal sleeve 16, heat dissipation shell 20 and elastic heat conducting block 30.

[0037] Charging interface 13 is installed at the bottom of voltage reduction circuit board 12, and the opening of charging interface 13 is arranged outward, voltage reduction circuit board 12 is installed at the top of insulating support 15 to form an assembly, the assembly is embedded in the upper portion of metal sleeve 16, the lower portion of metal sleeve 16 is installed at the shoulder height 111 of cell assembly 11, one end of elastic connecting piece 14 is connected with voltage reduction circuit board 12, and the other end is connected with the positive electrode of cell assembly 11.In this embodiment, voltage reduction circuit board 12 is the existing voltage reduction circuit board 12, which will not be described in detail, and can refer to the voltage reduction circuit board 12 described in the background art.

[0038] The heat dissipation shell 20 and the elastic heat conduction block 30 are both located below the shoulder height 111 of the battery cell assembly 11.

[0039] The periphery of the battery cell assembly 11 is connected with the heat dissipation shell 20 through the elastic heat conduction block 30, the heat dissipation shell 20 is wrapped on the periphery of the battery cell assembly 11, and the elastic heat conduction block 30 is clamped between the battery cell assembly 11 and the heat dissipation shell 20.

[0040] In the embodiment, the elastic heat conduction block 30 is a sandwich structure, and the sandwich structure comprises an inner heat conduction plate 31, an elastic porous material layer 32 and an outer heat conduction plate 33 arranged in sequence from inside to outside.

[0041] The inner heat conduction plate 31 is connected with the battery cell assembly 11.

[0042] The outer heat conduction plate 33 is connected with the heat dissipation shell 20.

[0043] In the embodiment, the heat conduction interface material in the first heat conduction interface material layer 41 and the second heat conduction interface material layer 42 is all adhesive heat conduction interface material.

[0044] The heat dissipation shell 20 is provided with a heat insulation handle 22.

[0045] The utility model discloses the design main points lie in, it mainly is through the cooperation of heat dissipation shell and elastic heat conduction block, realizes the protection of battery cell assembly, on one hand, the heat dissipation of battery cell assembly is convenient, improves its heat dissipation effect, prolongs its service life, on the other hand, the protection of battery cell assembly is prevented from colliding, even if the side is collided in the use process, will play the buffering effect, further prolongs its service life, and, through the design of heat insulation handle, is favorable to carrying this product and will not be affected by heat ;

[0046] Secondly, through the design of the recess, the heat insulation handle can be hidden in the recess when not in use, which protects the handle and avoids collision.

[0047] The above is only the preferred embodiment of the present application, and does not limit the technical scope of the present application in any way. Therefore, any minor modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still falls within the scope of the technical solution of the present application.

Claims

1. A constant voltage lithium battery with a charging port, comprising a cell assembly, a voltage reduction circuit board, a charging interface, an elastic connecting member, an insulating support and a metal sleeve, the charging interface is installed at the bottom of the voltage reduction circuit board, and the opening of the charging interface is arranged outward, the voltage reduction circuit board is installed at the top of the insulating support to form an assembly, the assembly is embedded in the upper part of the metal sleeve, the lower part of the metal sleeve is installed at the shoulder height of the cell assembly, one end of the elastic connecting member is connected with the voltage reduction circuit board, and the other end is connected with the positive electrode of the cell assembly, characterized in that: a heat dissipation shell and an elastic heat conducting block are further arranged below the shoulder height of the cell assembly, the periphery of the cell assembly is connected with the heat dissipation shell through the elastic heat conducting block, the heat dissipation shell covers the periphery of the cell assembly, the elastic heat conducting block is clamped between the cell assembly and the heat dissipation shell, and a heat insulation handle is arranged on the heat dissipation shell. The elastic heat conducting block is a sandwich structure, and the sandwich structure comprises an inner heat conducting plate, an elastic porous material layer and an outer heat conducting plate arranged in sequence from inside to outside.

2. The constant voltage lithium battery with a charging port of claim 1, wherein: The inner heat conducting plate is connected with the cell assembly, and the outer heat conducting plate is connected with the heat dissipation shell. The inner heat conducting plate is connected with the cell assembly through a first heat conducting interface material layer.

3. The constant voltage lithium battery with a charging port of claim 2, wherein: The heat conducting interface material in the first heat conducting interface material layer is a heat conducting interface material with adhesion.

4. The constant-voltage lithium battery with a charging port according to claim 3, characterized in that: The elastic porous material in the elastic porous material layer is metal rubber.

5. The constant voltage lithium battery with a charging port of claim 2, wherein: The outer heat conducting plate is connected with the heat dissipation shell through a second heat conducting interface material layer.

6. The constant-voltage lithium battery with a charging port according to claim 2, characterized in that: The outer side of the heat dissipation shell is concave inwardly and provided with a groove, and the heat insulation handle is located in the groove and accommodated in the groove.

7. The constant-voltage lithium battery with a charging port of claim 1, wherein: ​

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