CN217468530U - High-efficient heat dissipation lithium cell - Google Patents
High-efficient heat dissipation lithium cell Download PDFInfo
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- CN217468530U CN217468530U CN202123361726.2U CN202123361726U CN217468530U CN 217468530 U CN217468530 U CN 217468530U CN 202123361726 U CN202123361726 U CN 202123361726U CN 217468530 U CN217468530 U CN 217468530U
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Abstract
The utility model relates to a high-efficient heat dissipation lithium battery, including lithium cell body and establish the lithium cell shell outside the lithium cell body, the lithium cell body bottom is equipped with N type semiconductor, and N type semiconductor extends to the lithium cell body inside and forms a plurality of refrigeration ends, and each refrigeration end cladding has insulating heat conduction silica gel; the lithium battery is also provided with a P-type semiconductor; the N-type semiconductor and the P-type semiconductor are connected to form a semiconductor refrigerator; the lithium battery body is also provided with a Hall current sensor for detecting the electrifying current of the electrode end; a first temperature sensor is also arranged in the lithium battery shell; the controller comprises a processor and a DC-DC converter; the input end of the DC-DC converter is electrically connected with the electrode end of the lithium battery body, the output end of the DC-DC converter is electrically connected with the processor, and the first temperature sensor and the semiconductor refrigerator are respectively electrically connected with the processor. This high-efficient heat dissipation lithium cell can be quick cool down to the lithium cell inside.
Description
Technical Field
The utility model relates to a battery field especially relates to a high-efficient heat dissipation lithium cell.
Background
When the lithium battery discharges, chemical reaction can occur in the battery, a large amount of heat energy is generated, the temperature of the lithium battery rises, and people can feel the temperature when touching the lithium battery by hands, which is a common phenomenon in most lithium batteries. If the lithium battery generates heat seriously, the internal structure of the lithium battery can be damaged, and the explosion phenomenon can be caused seriously.
The existing lithium battery mainly adopts a structure that a heat radiation fan is arranged outside the lithium battery, such as a power lithium battery heat radiation structure disclosed in chinese patent application publication No. CN113594580A, which is applied in number 07/30/2021; further, as the lithium battery pack heat sink disclosed in chinese patent application publication No. CN105957986A, which is applied for example on 2016, 09, 21, year, etc. The heat radiation structure of the lithium battery is characterized in that the fan is arranged on the lithium battery, and the heat on the surface of the lithium battery is taken away by increasing the air flow on the surface of the lithium battery. In fact, heat dissipation to the interior of the lithium battery is slow; or the cooling effect inside the lithium battery is not ideal.
Therefore, to above-mentioned problem, this high-efficient heat dissipation lithium cell can be quick cools down to lithium cell inside.
SUMMERY OF THE UTILITY MODEL
Therefore, to foretell problem, the utility model provides a high-efficient heat dissipation lithium cell can be quick cools down to the lithium cell inside.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-efficiency heat-dissipation lithium battery comprises a lithium battery body and a lithium battery shell arranged outside the lithium battery body, wherein an electrode end is arranged on the lithium battery body;
the bottom of the lithium battery body is provided with an N-type semiconductor, and the N-type semiconductor extends towards the inside of the lithium battery body to form a plurality of refrigerating ends;
insulating heat-conducting silica gel is coated on each refrigerating end;
the outer surface of the lithium battery shell is provided with a P-type semiconductor;
the N-type semiconductor and the P-type semiconductor are connected to form a semiconductor refrigerator;
the lithium battery body is also provided with a Hall current sensor for detecting the electrifying current of the electrode end;
a first temperature sensor is also arranged in the lithium battery shell;
the lithium battery pack further comprises a controller, the controller comprises a processor and a DC-DC converter, the input end of the DC-DC converter is electrically connected with the electrode end of the lithium battery body, the output end of the DC-DC converter is electrically connected with the power supply end of the processor, and the first temperature sensor and the semiconductor refrigerator are respectively electrically connected with the processor.
Furthermore, a heat radiation fan is arranged at the position of the P-type semiconductor on the lithium battery shell; the heat dissipation fan is electrically connected with the processor.
Further, the P-type semiconductor extends outwards to form a heat dissipation fin.
Further, a second temperature sensor is arranged on the heat dissipation fin; the second temperature sensor is electrically connected with the processor.
Further, the controller further comprises a display screen; the display screen is electrically connected with the processor.
By adopting the technical scheme, the beneficial effects of the utility model are that: this high-efficient heat dissipation lithium cell is through being provided with N type semiconductor in lithium cell body bottom, and N type semiconductor forms a plurality of refrigeration ends to lithium cell body is inside to extend to surface at lithium cell casing is provided with P type semiconductor. The N-type semiconductor and the P-type semiconductor are connected to form a semiconductor refrigerator. When the Hall circuit sensor detects that the lithium battery body is electrified and the first temperature sensor detects that the temperature of the lithium battery body exceeds a set threshold value, the processor controls the semiconductor refrigerator to be electrified, and the refrigerating end starts refrigerating and quickly refrigerates from the inside of the lithium battery body.
Further, when the semiconductor refrigerator is powered on, the temperature of the heat dissipation fins of the P-type semiconductor is increased to dissipate heat, and the temperature of the P-type semiconductor is detected by the second temperature sensor. When the temperature of the P-type semiconductor is detected to exceed a set threshold value, the processor controls the cooling fan to start to rapidly cool.
Drawings
Fig. 1 is a cross-sectional view of a high-efficiency heat-dissipating lithium battery of the present invention;
fig. 2 is a circuit connection block diagram of the high-efficiency heat-dissipation lithium battery of the present invention.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 and 2, the present embodiment provides a high-efficiency heat-dissipation lithium battery, which includes a lithium battery body 1 and a lithium battery case 2 disposed outside the lithium battery body 1, wherein an electrode terminal 11 is disposed on the lithium battery body 1.
The bottom of lithium battery body 1 is provided with N type semiconductor 3, N type semiconductor 3 extends to lithium battery body 1 inside and forms a plurality of refrigerating end 3. Only four refrigerating terminals 3 are shown in fig. 1, and in the specific implementation process, the number of the refrigerating terminals 3 may be increased appropriately according to the size of the lithium battery body 1.
Insulating heat-conducting silica gel 32 is coated on each refrigerating end 3.
The outer surface of the lithium battery shell 2 is provided with a P-type semiconductor 4; the P-type semiconductor 4 extends outward to form a heat dissipation fin 41.
The N-type semiconductor 3 and the P-type semiconductor 4 are both made of conventional semiconductor materials, and are not described in detail herein.
The N-type semiconductor 3 and the P-type semiconductor 4 are connected to form a semiconductor refrigerator 100. When semiconductor cooler 100 is powered on, a temperature difference is formed between N-type semiconductor 3 and P-type semiconductor 4. The utility model discloses utilize this principle, control semiconductor cooler 100 circular telegram back, make N type semiconductor 3 refrigerates, and P type semiconductor 4 produces the heat. When the N-type semiconductor 3 is used for refrigerating, the cooling is rapidly carried out from the inside of the lithium battery body 1.
The lithium battery body 1 is also provided with a Hall current sensor 5 for detecting the electrifying current of the electrode terminal 11.
The lithium battery shell 2 is also internally provided with a first temperature sensor 7. The heat dissipation fin 41 is provided with a second temperature sensor 8.
A cooling fan 6 is arranged at the position of the P-type semiconductor 4 on the lithium battery shell 2, and the cooling fan 6 is used for rapidly cooling the P-type semiconductor 4.
A controller 9 is also included, the controller 9 including a processor 90, a DC-DC converter 91 and a display screen 92. In this embodiment, the processor 90 preferably employs an MT8980 processor.
All the electronic components are existing electronic equipment.
The input end of the DC-DC converter 91 is electrically connected to the electrode end of the lithium battery body 1, and the output end of the DC-DC converter 91 is electrically connected to the power supply end of the processor 90 to supply power to the processor 90. The hall current sensor 5, the cooling fan 6, the first temperature sensor 7, the second temperature sensor 8, the display screen 92, and the semiconductor refrigerator 100 are electrically connected to the processor 90, respectively.
The working principle is as follows:
when the hall circuit sensor 5 detects that the lithium battery body 1 is powered on and the first temperature sensor 7 detects that the temperature of the lithium battery body 1 exceeds a set threshold (such as 30 ℃), the processor 90 controls the semiconductor refrigerator 100 to be powered on, and the refrigerating end 31 starts refrigerating and quickly refrigerates from the inside of the lithium battery body 1.
When semiconductor cooler 100 is powered on, heat dissipation fins 41 of P-type semiconductor 4 increase in temperature to dissipate heat, and the temperature of P-type semiconductor 4 is detected by second temperature sensor 8. When the temperature of the P-type semiconductor 4 is detected to exceed a set threshold (e.g., 75 ℃), the processor 90 controls the heat dissipation fan 6 to start rapid heat dissipation.
The display screen 92 displays the temperature inside the lithium battery body 1 and the temperature of the heat dissipation fins 41.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A high-efficiency heat-dissipation lithium battery comprises a lithium battery body and a lithium battery shell arranged outside the lithium battery body, wherein an electrode end is arranged on the lithium battery body;
the method is characterized in that:
the bottom of the lithium battery body is provided with an N-type semiconductor, and the N-type semiconductor extends towards the inside of the lithium battery body to form a plurality of refrigerating ends;
insulating heat-conducting silica gel is coated on each refrigerating end;
the outer surface of the lithium battery shell is provided with a P-type semiconductor;
the N-type semiconductor and the P-type semiconductor are connected to form a semiconductor refrigerator;
the lithium battery body is also provided with a Hall current sensor for detecting the electrifying current of the electrode end;
a first temperature sensor is also arranged in the lithium battery shell;
the controller comprises a processor and a DC-DC converter; the input end of the DC-DC converter is electrically connected with the electrode end of the lithium battery body, the output end of the DC-DC converter is electrically connected with the power supply end of the processor, and the first temperature sensor and the semiconductor refrigerator are respectively and electrically connected with the processor.
2. A high efficiency heat dissipating lithium battery as claimed in claim 1, wherein: a heat radiation fan is arranged at the position of the P-type semiconductor on the lithium battery shell;
the heat dissipation fan is electrically connected with the processor.
3. A high efficiency heat dissipating lithium battery as claimed in claim 2, wherein: the P-type semiconductor extends outwards to form a radiating fin.
4. A high efficiency heat dissipating lithium battery as claimed in claim 3, wherein: a second temperature sensor is arranged on the heat dissipation fin;
the second temperature sensor is electrically connected with the processor.
5. A high efficiency heat dissipating lithium battery as claimed in claim 2, 3 or 4, wherein: the controller further comprises a display screen;
the display screen is electrically connected with the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123361726.2U CN217468530U (en) | 2021-12-29 | 2021-12-29 | High-efficient heat dissipation lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123361726.2U CN217468530U (en) | 2021-12-29 | 2021-12-29 | High-efficient heat dissipation lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217468530U true CN217468530U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123361726.2U Active CN217468530U (en) | 2021-12-29 | 2021-12-29 | High-efficient heat dissipation lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217468530U (en) |
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2021
- 2021-12-29 CN CN202123361726.2U patent/CN217468530U/en active Active
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