High-voltage lithium ion battery for mobile phone

Abstract

The high-voltage lithium ion battery for the mobile phone comprises a battery body, a fixing cover is installed at the upper end of the battery body, a plurality of heat exchange pipes are installed at the left end and the right end of the fixing cover, most of the heat exchange pipes are arranged in the battery body, and heat exchange work is conducted on the battery body through the heat exchange pipes, so that the battery body is cooled and dissipated. A limiting frame is installed in the fixing cover and located below the communicating position of the heat exchange pipe and the fixing cover, and movement of the piston plate is blocked through the limiting frame. Temperature rise of the battery body is transmitted to the air bag, so that air in the air bag is heated and expanded, the air bag is enlarged to push the piston plate to ascend, the piston plate ascends to push cooling liquid in the fixed cover to flow into the heat exchange pipes, and heat exchange is carried out on the battery body through the heat exchange pipes.

Description

Technical Field

[0001] The utility model relates to the field of lithium ion batteries, in particular to a high-voltage lithium ion battery for mobile phones. Background Art

[0002] Lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on the movement of lithium ions between the positive electrode and the negative electrode to work. During the charge and discharge process, Li+ is intercalated and deintercalated between the two electrodes: when charging, Li+ is deintercalated from the positive electrode and intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.

[0003] When playing games and charging and discharging, the lithium-ion battery will generate a lot of heat, causing the battery temperature to rise. If the temperature is too high, it will affect the performance of the battery, and the battery life will be significantly shortened, which will also affect the normal use of the mobile phone. Therefore, those skilled in the art provide a high-voltage lithium-ion battery for mobile phones to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a high-voltage lithium-ion battery for a mobile phone, comprising a battery body, a fixed cover is installed on the upper end of the battery body, a plurality of heat exchange tubes are installed on both the left and right ends of the fixed cover, most of the heat exchange tubes are placed inside the battery body, and the heat exchange work is performed on the battery body through the heat exchange tubes to cool down and dissipate heat of the battery body, and a limit frame is installed inside the fixed cover, the limit frame is located below the connection between the heat exchange tube and the fixed cover, and the movement of the piston plate is blocked by the limit frame;

[0005] A piston plate is arranged inside the fixed cover, and the piston plate is slidably connected to the inner wall of the fixed cover. The piston plate is located below the limit frame, and the cooling liquid is pushed into the heat exchange tube through the piston plate to perform heat exchange. An air bag is installed at the lower end of the piston plate, and the air bag is fixedly connected to the upper end of the battery body. There is air inside the air bag, and the piston plate is pushed to move due to the heat expansion of the air inside the air bag, thereby pushing the cooling liquid to flow into the heat exchange tube. A plurality of heat sinks are embedded in the upper end of the fixed cover, and the lower end surface of the heat sink and the lower end surface of the limit frame are in the same plane, and the cooling liquid is dissipated by the heat sink. Cooling liquid is arranged inside the fixed cover, and the cooling liquid is located between the top of the fixed cover and the upper end of the piston plate, and the cooling liquid is used to dissipate heat and cool down.

[0006] Preferably, the lower end of the battery body is symmetrically provided with matching grooves, and contact pieces are installed inside the matching grooves, so that the battery body and the mobile phone mainboard are connected via the contact pieces.

[0007] Preferably, a temperature insulating layer is arranged inside the fixed cover, and the temperature insulating layer prevents the external temperature from affecting the cooling liquid inside the fixed cover.

[0008] Preferably, the overall shape of the heat exchange tube is "J".

[0009] Preferably, the overall shape of the limit frame is "□" (a square with a hollow center).

[0010] The technical effects and advantages of the present utility model:

[0011] In the present utility model, the temperature rise of the battery body is transmitted to the airbag, causing the air inside the airbag to expand due to heat, making the airbag expand and push the piston plate upward. The upward movement of the piston plate pushes the cooling liquid inside the fixed cover into several heat exchange tubes, and heat exchange is carried out on the battery body through the heat exchange tubes, thereby dissipating heat and cooling down the battery body. Description of the Drawings

[0012] Figure 1 is a schematic structural view of the present application;

[0013] Figure 2 is a top view of the present application;

[0014] Figure 3 is a schematic structural view of the fixed cover of the present application;

[0015] In the figure: 1, battery body; 2, contact piece; 3, fixed cover; 4, heat exchange tube; 5, limit frame; 6, piston plate; 7, airbag; 8, heat sink. Detailed Embodiment

[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] Please refer to Figures 1 to 3A high-voltage lithium-ion battery for a mobile phone comprises a battery body 1, wherein a matching groove is symmetrically provided at the lower end of the battery body 1, a contact sheet 2 is installed inside the matching groove, and the battery body 1 is connected to a mobile phone motherboard through the contact sheet 2, a fixed cover 3 is installed at the upper end of the battery body 1, and a temperature insulation layer is arranged inside the fixed cover 3, and the temperature insulation layer prevents the external temperature from affecting the cooling liquid inside the fixed cover 3, and a plurality of heat exchange tubes 4 are installed at both ends of the fixed cover 3, and the heat exchange tubes 4 are in a "J" shape as a whole, and most of the heat exchange tubes 4 are placed inside the battery body 1, and the heat exchange tubes 4 are used to perform heat exchange work on the battery body 1, so that the battery body 1 is cooled and dissipated, and a limit frame 5 is installed inside the fixed cover 3, and the limit frame 5 is in a "U" shape as a whole, and the limit frame 5 is located below the connection between the heat exchange tube 4 and the fixed cover 3, and the limit frame 5 is in a "U" shape as a whole, and the limit frame 5 is located below the connection between the heat exchange tube 4 and the fixed cover 3, and the limit frame 5 blocks the movement of the piston plate 6, a piston plate 6 is arranged inside the fixed cover 3, the piston plate 6 and the inner wall of the fixed cover 3 are slidably connected, the piston plate 6 is located below the limit frame 5, the cooling liquid is pushed into the heat exchange tube 4 through the piston plate 6 to perform heat exchange work, an air bag 7 is installed at the lower end of the piston plate 6, and the air bag 7 is fixedly connected to the upper end of the battery body 1, there is air inside the air bag 7, the air inside the air bag 7 is heated and expanded to push the piston plate 6 to move, thereby pushing the cooling liquid into the heat exchange tube 4, a plurality of heat sinks 8 are inlaid on the upper end of the fixed cover 3, and the lower end surface of the heat sink 8 and the lower end surface of the limit frame 5 are in the same plane, the cooling liquid is dissipated by the heat sink 8, the cooling liquid is arranged inside the fixed cover 3, and the cooling liquid is located between the top of the fixed cover 3 and the upper end of the piston plate 6, and the cooling liquid is used to dissipate heat and cool down.

[0018] The working principle of the utility model is: the battery body 1 is installed in the mobile phone, so that the contact piece 2 contacts the installation connecting piece of the mobile phone. When the temperature of the battery body 1 rises, the temperature is transmitted to the airbag 7, so that the air inside the airbag 7 expands due to the heat, so that the airbag 7 becomes larger and pushes the piston plate 6 to rise. The rising piston plate 6 pushes the cooling liquid inside the fixed cover 3 to flow into the interior of a plurality of heat exchange tubes 4, and the heat exchange is performed on the battery body 1 through the heat exchange tubes 4, so that the heat dissipation and cooling of the battery body 1 are carried out.

[0019] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A high voltage lithium ion battery for a mobile phone, comprising a battery body (1), characterized in that: A fixing cover (3) is installed at the upper end of the battery body (1). A plurality of heat exchange tubes (4) are installed at both the left and right ends of the fixing cover (3). Most of the heat exchange tubes (4) are placed inside the battery body (1). A limiting frame (5) is installed inside the fixing cover (3), and the limiting frame (5) is located below the connection between the heat exchange tubes (4) and the fixing cover (3). A piston plate (6) is arranged inside the fixing cover (3). The piston plate (6) is slidably connected to the inner wall of the fixing cover (3). The piston plate (6) is located below the limiting frame (5). An airbag (7) is installed at the lower end of the piston plate (6), and the airbag (7) is fixedly connected to the upper end of the battery body (1). Air is stored inside the airbag (7). A plurality of heat dissipation fins (8) are inlaid at the upper end of the fixing cover (3), and the lower end surfaces of the heat dissipation fins (8) and the limiting frame (5) are on the same plane. Cooling liquid is provided inside the fixing cover (3), and the cooling liquid is located between the inner top of the fixing cover (3) and the upper end of the piston plate (6).

2. A high voltage lithium ion battery for mobile phones according to claim 1, characterized in that: Cooperating grooves are symmetrically formed at the lower end of the battery body (1), and contact pieces (2) are installed inside the cooperating grooves.

3. A high voltage lithium ion battery for mobile phones according to claim 1, characterized in that: A heat insulation layer is provided inside the fixing cover (3).

4. A high voltage lithium ion battery for mobile phones according to claim 1, characterized in that: The overall shape of the heat exchange tube (4) is "J”-shaped.

5. A high voltage lithium ion battery for mobile phones according to claim 1, characterized in that: The overall shape of the limiting frame (5) is "回”-shaped.

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