CN113437450A - Multicore cell-phone lithium cell - Google Patents
Multicore cell-phone lithium cell Download PDFInfo
- Publication number
- CN113437450A CN113437450A CN202110789817.1A CN202110789817A CN113437450A CN 113437450 A CN113437450 A CN 113437450A CN 202110789817 A CN202110789817 A CN 202110789817A CN 113437450 A CN113437450 A CN 113437450A
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- lithium battery
- thermal expansion
- heat
- core
- heat dissipation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The utility model belongs to the technical field of the lithium cell technique of the cell-phone and specifically relates to a multicore cell-phone lithium cell is related to, and it includes lithium cell shell, lithium cell shell internally mounted has lithium cell inner core, lithium cell shell is provided with the power-off protection subassembly, the power-off protection subassembly with lithium cell inner core electric connection, the power-off protection subassembly is used for right when the high temperature lithium cell inner core cuts off the power supply, lithium cell shell installs heat abstractor, heat abstractor controls through a control assembly, control assembly can control when the temperature risees heat abstractor opens. This application has the effect that improves the radiating efficiency of cell-phone lithium cell.
Description
Technical Field
The application relates to the technical field of lithium batteries of mobile phones, in particular to a multi-core lithium battery of a mobile phone.
Background
The mobile phone battery is an energy storage tool for providing power for the mobile phone, and consists of three parts: the battery comprises a battery cell, a protection circuit and a shell.
In the related art, the battery of the mobile phone is a lithium battery, and the lithium battery is a rechargeable battery, and is installed inside the mobile phone to provide electric energy for the mobile phone.
In view of the above-mentioned related technologies, the inventor believes that when a mobile phone is used in the last time, the lithium battery of the mobile phone is overheated due to poor heat dissipation performance inside the mobile phone, and if the temperature is high for a long time, the battery is easily aged, and the battery is seriously exploded.
Disclosure of Invention
In order to improve the heat dissipation efficiency of the lithium battery of the mobile phone, the application provides a multi-core lithium battery of the mobile phone.
The application provides a multicore cell-phone lithium cell adopts following technical scheme:
the utility model provides a multicore cell-phone lithium cell, includes lithium cell casing, lithium cell casing internally mounted has lithium cell inner core, lithium cell casing is provided with the power-off protection subassembly, the power-off protection subassembly with lithium cell inner core electric connection, the power-off protection subassembly is used for when the high temperature right lithium cell inner core cuts off the power supply.
Through adopting above-mentioned technical scheme, when the lithium cell generates heat too high, the power protection subassembly can cut off the electric connection of lithium cell inner core with it to the outage of accomplishing, and then make the lithium cell stop generating heat, be favorable to the cooling of lithium cell, improved the radiating efficiency of lithium cell.
Optionally, the power-off protection assembly comprises a metal seat, a conductive connecting piece and a thermal expansion block, the metal seat is installed on the lithium battery shell, the metal seat is electrically connected with the inner core of the lithium battery, one side, far away from the lithium battery shell, of the metal seat is provided with a slot, one end of the conductive connecting piece is connected with the slot in an inserting mode and matched with the slot in a sliding mode, the thermal expansion block is arranged outside one side of the slot, the thermal expansion block is driven to be separated from the slot by the conductive connecting piece due to thermal expansion.
Through adopting above-mentioned technical scheme, when the lithium cell generates heat too high, thereby the thermal energy piece can receive the thermal energy to drive electrically conductive connection piece and break away from the slot for electrically connected disconnection of electrically conductive connection piece and metal base, and then realized that the outage protection subassembly carries out the effect of outage to lithium cell inner core when the temperature is too high.
Optionally, one end of the thermal expansion block is fixedly connected with one side of the metal base, where the slot is formed, and the other end of the thermal expansion block is fixedly connected with one end of the conductive connecting sheet, which is far away from the metal base, through a connecting rod.
Through adopting above-mentioned technical scheme, when being heated, the thermal energy piece expands to drive the electrically conductive connection piece through the connecting rod and move towards the one side of keeping away from the metal base, finally make the electrically conductive connection piece break away from the slot, and then realized that the thermal energy piece receives the thermal energy and is used for driving the effect that the electrically conductive connection piece breaks away from the slot.
Optionally, the lithium battery shell is provided with a heat dissipation device, the heat dissipation device is controlled through a control assembly, and the control assembly can control the heat dissipation device to be opened when the temperature rises.
Through adopting above-mentioned technical scheme, heat abstractor and controlling means's cooperation sets up, and when the temperature rose, controlling means can control heat abstractor and start to dispel the heat to the lithium cell, be favorable to further improving the radiating efficiency of lithium cell.
Optionally, lithium battery shell installs one side of metal seat is fixed and is provided with the mounting bracket, control assembly installs mounting bracket department, control assembly is micro-gap switch, micro-gap switch installs the mounting bracket orientation one side of thermal expansion piece, just micro-gap switch with connecting rod looks butt.
Through adopting above-mentioned technical scheme, when the lithium cell generates heat, the thermal energy piece receives the thermal energy to drive the connecting rod and remove towards one side of mounting bracket to make connecting rod extrusion micro-gap switch, make for the air switch-on, thereby control heat abstractor opens and dispel the heat, realized the effect that control assembly controlled heat abstractor opened when the temperature risees.
Optionally, the heat dissipation device includes a heat dissipation fan and a heat dissipation fin, the heat dissipation fin is disposed at one end of the lithium battery casing, the heat dissipation fan is disposed at one end of the lithium battery casing and located outside one side of the heat dissipation fin, and the control component is used for controlling the opening and closing of the heat dissipation fan.
Through adopting above-mentioned technical scheme, the fin can play the radiating effect to lithium battery case's heat, and radiator fan's setting can improve the radiating effect of fin.
Optionally, the surface of the lithium battery shell is pasted with a heat conducting fin, and the heat conducting fin is abutted to the radiating fin.
Through adopting above-mentioned technical scheme, the heat that can will produce lithium cell surface is absorbed in the setting of conducting strip, then reaches to the fin, is favorable to improving the fin to thermal collection and giving off.
Optionally, a gap between the heat conducting fin and the heat radiating fin is filled with heat conducting silicone grease.
Through adopting above-mentioned technical scheme, the efficiency of heat transmission between conducting strip and fin can be improved to the setting of heat conduction silicone grease to be favorable to improving the radiating efficiency.
Optionally, the thermal expansion block is made of a nylon material.
Through adopting above-mentioned technical scheme, the thermal expansion piece that the nylon material was made can take place the inflation when the temperature risees to make self volume grow, realize that the thermal expansion piece receives the effect of thermal expansion.
Optionally, the heat conducting sheet is made of a graphene material.
By adopting the technical scheme, the heat conducting fin made of the graphite tin material has good heat conducting performance and is beneficial to transferring heat energy.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the lithium battery generates too high heat, the power-off protection component can cut off the electrical connection between the inner core of the lithium battery and the inner core of the lithium battery, so that the power-off is completed, the lithium battery stops generating heat, the cooling of the lithium battery is facilitated, and the heat dissipation efficiency of the lithium battery is improved;
2. the control device can control the heat dissipation device to start when the temperature rises, so that the lithium battery is dissipated, and the heat dissipation efficiency of the lithium battery is further improved;
3. the thermal expansion block made of nylon material can expand when the temperature rises, so that the volume of the thermal expansion block is increased, and the thermal expansion block is subjected to thermal expansion.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a multi-core lithium battery for a mobile phone in this embodiment.
Fig. 2 is a schematic view of another view angle of the multi-core lithium battery for mobile phone in this embodiment.
Description of reference numerals: 1. a lithium battery case; 2. a metal base; 3. a conductive connecting sheet; 4. a thermal expansion block; 5. a slot; 6. a connecting rod; 7. a heat radiation fan; 8. a heat sink; 81. a heat dissipating section; 9. a fixed mount; 10. a heat conductive sheet; 11. a mounting frame; 12. a micro switch.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a multi-core lithium battery for a mobile phone. Referring to fig. 1, a multi-core lithium battery for a mobile phone includes a lithium battery case 1, and a lithium battery core (not shown) is installed inside the lithium battery case 1. Lithium battery shell 1 is provided with the power-off protection subassembly, power-off protection subassembly and lithium battery inner core electric connection, and the power-off protection subassembly is used for cutting off the power supply to lithium battery inner core when the high temperature. The lithium battery shell 1 is provided with the heat dissipation device, the heat dissipation device is controlled through the control assembly, and when the temperature rises, the control assembly can control the heat dissipation device to be started to dissipate heat of the lithium battery.
When the temperature rose, the power-off protection subassembly can break off the electric connection with lithium cell inner core to make the reduction to the use of lithium cell, and then can reduce thermal production, the control assembly can control heat abstractor and open and dispel the heat to the lithium cell simultaneously, thereby is favorable to improving the radiating efficiency of lithium cell.
Referring to fig. 1, the power-off protection assembly includes a metal base 2, a conductive connecting sheet 3 and a thermal expansion block 4, wherein the metal base 2 is installed at one end of a lithium battery case 1, and the metal base 2 is electrically connected with an inner core (not shown) of a lithium battery. In the present embodiment, the metal holder 2 is made of a copper alloy material. One end of the thermal expansion block 4 is fixedly connected with one side of the metal seat 2 far away from the lithium battery shell 1. The thermal expansion block 4 is made of nylon materials, and the thermal expansion block 4 made of nylon materials can expand when the temperature rises, so that the volume of the thermal expansion block 4 is increased, and the thermal expansion effect of the thermal expansion block 4 is realized. And one side of the metal seat 2, which is far away from the lithium battery shell 1, is provided with a slot 5, and the slot 5 is positioned outside one side of the thermal expansion block 4. The part of the conductive connecting sheet 3 is inserted into the slot 5 and matched with the slot 5 in a sliding way, and the other part of the conductive connecting sheet 3 is fixedly connected with one end of the thermal expansion block 4 far away from the metal seat 2 through a connecting rod 6. And the conductive connecting sheet 3 is used for electrically connecting with the mobile phone to form the mobile phone. The conductive connection piece 3 is made of a copper alloy material.
Specifically, the side wall of one end of the connecting rod 6 is fixedly connected with the end face of one end, away from the lithium battery shell 1, of the thermal expansion block 4, and the other end of the connecting rod 6 extends out of one side of the thermal expansion block 4 and is fixedly connected with the side wall of the conductive connecting sheet 3.
When thermal expansion block 4 is heated the inflation, can drive electrically conductive connection piece 3 through connecting rod 6 and slide towards the one end of keeping away from slot 5 to make electrically conductive connection piece 3 break away from slot 5 and break off with the contact of metal base 2, and then realized that the outage protection subassembly carries out the effect of outage to lithium cell inner core.
Referring to fig. 1 and 2, the heat dissipating device includes a heat dissipating fan 7 and a heat sink 8, the heat sink 8 being made of an aluminum alloy material. The heat sink 8 is mounted at one end of the lithium battery case 1 through a fixing frame 9, and the heat sink fan 7 is mounted at one side of the heat sink 8 far away from the lithium battery case 1. In this embodiment, the number of the heat dissipation fans 7 is two, and the two heat dissipation fans 7 are symmetrically installed on the side wall of the heat dissipation fan 7, and the control assembly is electrically connected with the heat dissipation fan 7 and the lithium battery inner core for controlling the on/off of the heat dissipation fan 7.
Specifically, the side surface of the heat sink 8 away from the lithium battery case 1 is fin-shaped, and the heat sink 81 is arranged, so that the contact area between the heat sink 8 and air is increased, and the heat dissipation efficiency is increased.
Further, a heat conducting sheet 10 is arranged between the heat radiating sheet 8 and the lithium battery shell 1, and the heat conducting sheet 10 is made of graphene materials. The graphite tin material has good heat-conducting property and is beneficial to transferring heat energy. And the gap between the heat conducting fin 10 and the radiating fin 8 is filled with heat conducting silicone grease, so that the heat transfer efficiency between the heat conducting fin 10 and the radiating fin 8 can be effectively improved, and the improvement of the radiating efficiency is facilitated.
Referring to fig. 1, a mounting frame 11 is fixedly arranged on one side of the lithium battery shell 1 where the metal seat 2 is installed, and the mounting frame 11 is erected on one side of the thermal expansion block 4 away from the lithium battery shell 1. The control component is arranged at the mounting frame 11 and used for controlling the opening and closing of the cooling fan 7. Specifically, the control assembly is micro-gap switch 12, and micro-gap switch 12 installs in the one side of mounting bracket 11 towards thermal expansion piece 4, and micro-gap switch 12 and connecting rod 6 keep away from one side looks butt of thermal expansion piece 4. And one side of the microswitch 12 is electrically connected with the lithium battery inner core, and the other side of the microswitch 12 is electrically connected with the cooling fan 7. When the microswitch 12 is closed, the lithium battery core is connected with the heat radiation fan 7, so that the heat radiation fan 7 works.
When the thermal expansion block 4 is heated and expanded, the microswitch 12 can be pushed to be closed, so that the inner core of the lithium battery is communicated with the cooling fan 7, and then the cooling fan 7 cools the cooling fins 8, thereby being beneficial to further improving the cooling efficiency of the lithium battery.
The implementation principle of the multi-core lithium battery of the mobile phone in the embodiment of the application is as follows:
when the temperature of the lithium battery rises, the thermal expansion block 4 can expand by heating so as to drive the inserting conductive connecting sheet 3 to slide towards one end far away from the slot 5 through the connecting rod 6, so that the conductive connecting sheet 3 is separated from the slot 5 and is disconnected from the metal seat 2; meanwhile, the thermal expansion block 4 pushes the microswitch 12 to be closed, so that the lithium battery inner core is communicated with the cooling fan 7, and the cooling fan 7 is used for cooling the cooling fins 8, so that the cooling efficiency of the lithium battery is further improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A multi-core mobile phone lithium battery is characterized in that: including lithium battery case (1), lithium battery case (1) internally mounted has lithium battery inner core, lithium battery case (1) is provided with the power-off protection subassembly, the power-off protection subassembly with lithium battery inner core electric connection, the power-off protection subassembly is used for when the high temperature is right lithium battery inner core carries out the outage.
2. The multi-core lithium battery for mobile phones of claim 1, wherein: the power-off protection assembly comprises a metal seat (2), a conductive connecting piece (3) and a thermal expansion block (4), wherein the metal seat (2) is installed on the lithium battery shell (1), the metal seat (2) is electrically connected with the lithium battery inner core, the metal seat (2) is far away from one side of the lithium battery shell (1) and is provided with a slot (5), one end of the conductive connecting piece (3) is connected with the slot (5) in an inserting mode and matched with the slot in a sliding mode, the thermal expansion block (4) is arranged on the metal seat (2) and is arranged outside one side of the slot (5), and the thermal expansion block (4) is subjected to thermal expansion and is used for driving the conductive connecting piece (3) to be separated from the slot (5).
3. The multi-core lithium battery for mobile phones of claim 2, wherein: one end of the thermal expansion block (4) is fixedly connected with one side of the metal base (2) provided with the slot (5), and the other end of the thermal expansion block (4) is fixedly connected with one end of the conductive connecting sheet (3) far away from the metal base (2) through a connecting rod (6).
4. The multi-core lithium battery for mobile phones of claim 3, wherein: the lithium battery shell (1) is provided with a heat dissipation device, the heat dissipation device is controlled through a control assembly, and the control assembly can control the heat dissipation device to be opened when the temperature rises.
5. The multi-core lithium battery for mobile phones of claim 4, wherein: install lithium battery case (1) one side of metal seat (2) is fixed and is provided with mounting bracket (11), control assembly installs mounting bracket (11) department, control assembly is micro-gap switch (12), micro-gap switch (12) are installed mounting bracket (11) orientation one side of thermal expansion piece (4), just micro-gap switch (12) with thermal expansion piece (4) looks butt.
6. The multi-core lithium battery for mobile phones of claim 4, wherein: the heat dissipation device comprises a heat dissipation fan (7) and a heat dissipation sheet (8), the heat conduction sheet (10) is attached to the surface of the lithium battery shell (1), and the heat dissipation sheet (8) is arranged at one end of the lithium battery shell (1) and fixedly connected with the heat conduction sheet (10).
7. The multi-core lithium battery for mobile phones of claim 1, wherein: the surface of the lithium battery shell (1) is pasted with a heat conducting fin (10), and the heat conducting fin (10) is abutted to the radiating fin (8).
8. The multi-core lithium battery for mobile phones of claim 1, wherein: and heat-conducting silicone grease is filled in a gap between the heat-conducting fin (10) and the radiating fin (8).
9. The multi-core lithium battery for mobile phones of claim 1, wherein: the thermal expansion block (4) is made of nylon.
10. The multi-core lithium battery for mobile phones of claim 1, wherein: the heat conducting sheet (10) is made of graphene materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110789817.1A CN113437450B (en) | 2021-07-13 | 2021-07-13 | Multicore cell-phone lithium cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110789817.1A CN113437450B (en) | 2021-07-13 | 2021-07-13 | Multicore cell-phone lithium cell |
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| CN113437450A true CN113437450A (en) | 2021-09-24 |
| CN113437450B CN113437450B (en) | 2022-06-10 |
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| Publication number | Publication date |
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| CN113437450B (en) | 2022-06-10 |
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