CN215644773U - Low-temperature-resistant sealed lithium ion battery pack - Google Patents
Low-temperature-resistant sealed lithium ion battery pack Download PDFInfo
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- CN215644773U CN215644773U CN202121325744.2U CN202121325744U CN215644773U CN 215644773 U CN215644773 U CN 215644773U CN 202121325744 U CN202121325744 U CN 202121325744U CN 215644773 U CN215644773 U CN 215644773U
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- inner shell
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- lithium ion
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- 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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Abstract
The utility model relates to a low-temperature-resistant sealed lithium ion battery pack, which comprises an inner shell and an outer shell, wherein the upper part of the inner side of the inner shell is fixedly provided with a thread, the thread is connected with a top cover, the top of the inner shell is positioned at the lower side of the thread and is fixedly provided with a rubber ring, the front side, the rear side, the left side and the right side of the inner shell are respectively fixedly provided with a battery bin, the bottom of the battery bin is fixedly provided with a metal electrode, the front side, the rear side, the left side and the right side of the outer part of the inner shell are respectively fixedly provided with an electric heating sheet, the other side of the electric heating sheet relative to the inner shell is fixedly provided with a semiconductor refrigerating sheet, the middle part of the inner shell is fixedly provided with a control chamber, the inner part of the control chamber is fixedly provided with a temperature sensing sheet, the other side of the semiconductor refrigerating sheet relative to the electric heating sheet is fixedly provided with the outer shell, the bottom of the outer shell is fixedly provided with a one-way vent valve, and the edge of the bottom of the outer shell is fixedly provided with a supporting bulge; the utility model has the advantages of reasonable structure, convenient use and high working efficiency.
Description
Technical Field
The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a low-temperature-resistant sealed lithium ion battery pack.
Background
The lithium ion battery is a secondary battery, it mainly depends on the movement of the lithium ion between positive pole and negative pole to work, in the course of charging and discharging, the lithium ion comes and goes and disengages between two electrodes, during charging, the lithium ion is disengaged from the positive pole, pass the electrolyte and imbed the negative pole, the negative pole is in the state of rich lithium, while discharging, it is opposite, in the real use course, the battery capacity and the working efficiency of the lithium ion battery are greatly influenced by the temperature, the working temperature of the lithium ion battery is generally minus 20 ℃ to minus 60 ℃, at lower temperature, such as minus 40 ℃, the charging and discharging performance of the battery is poorer, the battery is difficult to charge, and the discharge capacity is only 12% of the room temperature, the energy density is lower, it is easy to precipitate lithium on the surface of the negative pole, there is higher potential safety hazard, the low temperature resistant lithium ion battery using special electrolyte has higher cost, and the application range is small, so that the low-temperature-resistant sealed lithium ion battery pack is very necessary to be provided.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a low-temperature-resistant sealed lithium ion battery pack which is reasonable in structure, convenient to use, high in working efficiency and wide in application range.
The purpose of the utility model is realized as follows: a low-temperature resistant sealed lithium ion battery pack comprises an inner shell and an outer shell, wherein the upper part of the inner side of the inner shell is fixed with threads, the top cover is connected with the screw thread, a rubber ring is fixed at the top of the inner shell and positioned at the lower side of the screw thread, the front side, the rear side, the left side and the right side of the inner part of the inner shell are respectively fixed with a battery compartment, the bottom of the battery compartment is fixed with a metal electrode, the front side, the rear side, the left side and the right side of the outer part of the inner shell are respectively fixed with an electric heating sheet, the other side of the electric heating sheet relative to the inner shell is fixed with a semiconductor refrigerating sheet, a control chamber is fixed in the middle of the inner shell, a temperature sensing sheet is fixed in the control chamber, an outer shell is fixed on the other side of the semiconductor refrigeration sheet relative to the electric heating sheet, the bottom of the shell is fixed with a one-way vent valve, and the edge of the bottom of the shell is fixed with a supporting bulge.
Specifically, the number of the battery bins is 4, the number of the electric heating sheets is 4, and the number of the semiconductor refrigerating sheets is 4
Specifically, the inner shell is in the shape of a hollow cylinder, and the outer shell is in the shape of a hollow cylinder.
Specifically, the electric heating plate is a constant temperature heating plate.
Specifically, the one-way vent valves are uniformly distributed in a scattered manner at the bottom of the shell.
Specifically, the number of the support protrusions is 4.
The utility model has the beneficial effects that: the top cover is rotationally fixed on the top of the inner shell through threads, the bottom of the top cover is in contact with the rubber ring to play a role in sealing, the outer shell and the inner shell are combined in a nesting mode, the front side, the rear side, the left side and the right side of the interior of the inner shell are respectively fixed with a battery compartment, and the bottom of the battery compartment is fixed with a metal electrode to enable a single lithium ion battery to be connected into a lithium ion battery pack; a control chamber is fixed in the middle of the inner shell, a temperature sensing sheet is fixed in the control chamber, the temperature of the low-temperature-resistant sealed lithium ion battery pack is monitored in real time, a temperature signal is transmitted to the control chamber, the control chamber receives the temperature signal and then recognizes and judges, when the temperature is lower than 0 ℃, an electric heating sheet works to raise the temperature, when the temperature is higher than 10 ℃, the electric heating sheet stops working, when the temperature is higher than 30 ℃, a semiconductor refrigerating sheet works, and when the temperature is lower than 20 ℃, the semiconductor refrigerating sheet stops working, so that the temperature of the lithium ion battery is controlled in a reasonable range; the bottom of the shell is provided with the one-way vent valve, so that the shell has a good heat dissipation function and has waterproof and dustproof effects, and the bottom of the shell is fixedly provided with the supporting bulge which plays a role in supporting the shell, so that the shell is more stable; the utility model has the advantages of reasonable structure, convenient use and high working efficiency.
Drawings
Fig. 1 is a cross-sectional front view of a low temperature resistant sealed lithium ion battery pack of the present invention.
Fig. 2 is a cross-sectional top view of a low temperature resistant sealed lithium ion battery pack of the present invention.
Fig. 3 is a top view of a low temperature resistant sealed lithium ion battery pack of the present invention.
In the figure: 1. the device comprises an outer shell 2, a semiconductor refrigerating sheet 3, a temperature sensing sheet 4, an electric heating sheet 5, an inner shell 6, a metal electrode 7, a supporting bulge 8, a thread 9, a rubber ring 10, a battery bin 11, a control room 12, a top cover 13 and a one-way vent valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention, and are specifically described below with reference to the embodiments.
As shown in fig. 1-3, a low temperature resistant sealed lithium ion battery pack comprises an inner casing 5 and an outer casing 1, and is characterized in that: the upper part of the inner side of the inner shell 5 is fixed with a thread 8, the thread 8 is connected with a top cover 12, the top of the inner shell 5 is positioned at the lower side of the thread 8 and is fixed with a rubber ring 9, the front side, the rear side, the left side and the right side of the inner shell 5 are respectively fixed with a battery bin 10, the bottom of the battery compartment 10 is fixed with a metal electrode 6, the front side, the rear side, the left side and the right side of the outer part of the inner shell 5 are respectively fixed with an electric heating sheet 4, the other side of the electric heating plate 4 relative to the inner shell 5 is fixed with a semiconductor refrigerating plate 2, the middle part of the inner shell 5 is fixed with a control chamber 11, a temperature sensing sheet 3 is fixed in the control room 11, a shell 1 is fixed on the other side of the semiconductor refrigerating sheet 2 relative to the electric heating sheet 4, the bottom of the shell 1 is fixed with a one-way vent valve 13, and the edge of the bottom of the shell 1 is fixed with a supporting bulge 7.
For better effect, the quantity of electric heating plate 4 is 4, the quantity of semiconductor refrigeration piece 2 is 4, and evenly distributed is around inner shell 5, ensures the efficiency and the effect of rising temperature and cooling, and the stability of temperature in the assurance battery compartment 10 ensures the work efficiency of battery.
For better effect, the bottom of the shell 1 is fixed with a one-way ventilation valve 13, which ensures ventilation and plays a role in dust prevention and water prevention.
The working process of the utility model is as follows: rotating the top cover 12, removing the top cover 12 to expose the battery compartment 10, installing the battery into the battery compartment 10 to be assembled into a battery pack, providing current and voltage required by an electric appliance, aligning the top cover 12 with the threads 8 and then rotating, and sealing the rubber ring 9 under the top cover 12. when the electric heating device works, the electric heating sheets 4 are fixed on the front side, the rear side, the left side and the right side outside the inner shell 5, the temperature sensing sheet 3 inside the control chamber 11 monitors the temperature and transmits the temperature signal to the control chamber 11, the control chamber 11 converts the temperature signal into an electric signal, when the temperature is lower than 0 ℃, the control chamber 11 controls the electric heating sheet 4 to start working, the temperature in the battery compartment 10 is increased, when the temperature in the battery compartment 10 is increased, the control chamber 11 controls the electric heating sheet 4 to stop heating, the electric quantity required by the electric heating sheet 4 to work is provided by the lithium ion battery pack, when the temperature signal received by the control chamber 11 is higher than 30 ℃, the control room 11 controls the semiconductor refrigeration piece 2 to start working, the temperature in the battery compartment 10 is reduced, when the temperature is lower than 20 ℃, the control room 11 controls the semiconductor refrigeration piece 2 to stop working, and the electric quantity required by the work of the semiconductor refrigeration piece 2 is provided by the lithium ion battery pack, so that the temperature in the battery compartment 10 is controlled in a temperature interval with the highest working efficiency of the lithium ion battery pack, and the optimal working efficiency of the lithium ion battery pack is ensured.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and thus, the embodiments are to be considered in all respects as illustrative and not restrictive, and any reference signs in the claims are not intended to be construed as limiting the claims so far concerned.
Claims (5)
1. The utility model provides a low temperature resistant sealed lithium ion battery group, it includes inner shell, its characterized in that: the upper portion of the inner side of the inner shell is fixed with threads, the threads are connected with a top cover, the top of the inner shell is located on the lower side of the threads, rubber rings are fixed on the front side, the rear side, the left side and the right side of the inner shell, battery bins are fixed on the front side, the rear side, the left side and the right side of the inner shell respectively, metal electrodes are fixed on the bottom of the battery bins, electric heating sheets are fixed on the front side, the rear side, the left side and the right side of the outer portion of the inner shell respectively, semiconductor refrigerating sheets are fixed on the electric heating sheets opposite sides of the inner shell, a control chamber is fixed in the middle of the inner shell, temperature sensing sheets are fixed inside the control chamber, an outer shell is fixed on the semiconductor refrigerating sheets opposite sides of the electric heating sheets, a one-way ventilation valve is fixed on the bottom of the outer shell, and supporting protrusions are fixed on the edge of the bottom of the outer shell.
2. The low temperature resistant sealed lithium ion battery pack of claim 1, wherein: the number of the electric heating pieces is 4, and the number of the semiconductor refrigerating pieces is 4.
3. The low temperature resistant sealed lithium ion battery pack of claim 1, wherein: the shape of the inner shell is a hollow cylinder, and the shape of the outer shell is a hollow cylinder.
4. The low temperature resistant sealed lithium ion battery pack of claim 1, wherein: the one-way vent valves are uniformly distributed in a scattered manner at the bottom of the shell.
5. The low temperature resistant sealed lithium ion battery pack of claim 1, wherein: the number of the supporting protrusions is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121325744.2U CN215644773U (en) | 2021-06-15 | 2021-06-15 | Low-temperature-resistant sealed lithium ion battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121325744.2U CN215644773U (en) | 2021-06-15 | 2021-06-15 | Low-temperature-resistant sealed lithium ion battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215644773U true CN215644773U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121325744.2U Active CN215644773U (en) | 2021-06-15 | 2021-06-15 | Low-temperature-resistant sealed lithium ion battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215644773U (en) |
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2021
- 2021-06-15 CN CN202121325744.2U patent/CN215644773U/en active Active
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