CN212848562U - Lithium battery energy release device - Google Patents
Lithium battery energy release device Download PDFInfo
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- CN212848562U CN212848562U CN202021950115.4U CN202021950115U CN212848562U CN 212848562 U CN212848562 U CN 212848562U CN 202021950115 U CN202021950115 U CN 202021950115U CN 212848562 U CN212848562 U CN 212848562U
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- energy release
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- lithium battery
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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 discloses an energy releasing device of a lithium battery, which comprises an energy releasing shell, two jacks arranged on the energy releasing shell, and an energy releasing resistor and a radiator which are arranged in the energy releasing shell; the energy release resistor is also electrically connected with the two jacks, and the two jacks are used for accessing the lithium battery to discharge the lithium battery through the energy release resistor; the radiator is also contacted with the energy release resistor, the energy release shell is also provided with a plurality of radiating holes, and the radiator is used for radiating heat generated by the energy release resistor to the outside through the plurality of radiating holes. The utility model relates to a rationally, small, and be equipped with the radiator, when energy release resistance discharges to the lithium cell, the radiator can give off the heat that energy release resistance produced to the external world through louvre high efficiency, can avoid energy release resistance to damage, and then reduce cost of maintenance, simultaneously, energy release casing is transparent housing, and inner structure surveyability can be convenient for staff's equipment maintenance, and the practicality is strong.
Description
Technical Field
The utility model relates to a lithium cell technical field that discharges especially relates to a lithium cell energy release device.
Background
The lithium ion battery needs to be charged and discharged (energy release) continuously during the process of capacity grading. In the discharging process, a discharger is generally used for discharging. The conventional discharger is generally a heating resistor, and when discharging, the heating resistor is connected with the positive electrode and the negative electrode of the lithium ion battery, so that electric energy stored in the lithium ion battery is converted into heat energy in the heating resistor and is emitted out. However, the heating resistor is easily burned out due to excessive heat accumulation in the long-time working process, which not only affects the service life of the battery discharger, but also has certain potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lithium cell energy release device, the device reasonable in design, small, and be equipped with the radiator, when energy release resistance discharges to the lithium cell, the radiator can give off the heat that energy release resistance produced to the external world through louvre high efficiency, can avoid energy release resistance to damage, and then reduce cost of maintenance, and simultaneously, energy release casing is transparent housing, inner structure surveyability, the staff's equipment maintenance of can being convenient for, furthermore, digital voltage current instruction table has still been integrated, can in time look over the discharge state of lithium cell, and is simple and convenient, therefore, the clothes hanger is strong in practicability.
In order to realize the purpose, the following technical scheme is adopted:
a lithium battery energy release device comprises an energy release shell, two jacks arranged on the energy release shell, and an energy release resistor and a radiator which are arranged in the energy release shell; the energy release resistor is also electrically connected with the two jacks, and the two jacks are used for accessing the lithium battery to discharge the lithium battery through the energy release resistor; the radiator is also contacted with the energy release resistor, the energy release shell is also provided with a plurality of radiating holes, and the radiator is used for radiating heat generated by the energy release resistor to the outside through the plurality of radiating holes.
Further, the radiator comprises a radiating seat and a plurality of radiating fins arranged on the radiating seat; the heat dissipation seat is installed in the energy release shell, and the energy release resistor is arranged on the heat dissipation seat.
Furthermore, the plurality of radiating fins are arranged on two sides of the radiating seat at intervals in parallel along the length direction of the radiating seat, and the energy release resistor is arranged on one side of the radiating seat.
Furthermore, the plurality of radiating fins are arranged at the bottom of the radiating seat at intervals in parallel along the length direction of the radiating seat, and the energy-releasing resistor is installed at the top of the radiating seat.
Furthermore, the energy release shell comprises a bottom shell and a top cover detachably connected with the bottom shell; the energy release resistor and the radiator are uniformly distributed in the bottom shell, and the two jacks are arranged on the top cover.
Further, the lithium battery energy release device also comprises a display device arranged on the top cover.
Furthermore, an installation groove is further formed in the top of the top cover, and the display device comprises a voltage and current indicator arranged in the installation groove.
Further, the energy release shell is a transparent shell.
Adopt above-mentioned scheme, the beneficial effects of the utility model are that:
the device reasonable in design, small, and be equipped with the radiator, when energy release resistance discharges to the lithium cell, the radiator can give off the heat that energy release resistance produced to the external world through louvre high efficiency, can avoid energy release resistance to damage because of the high temperature, and then reduce cost of maintenance, and simultaneously, the energy release casing is transparent housing, inner structure surveyability, the staff's equipment maintenance of can being convenient for, furthermore, digital voltage current instruction table has still been integrated, can in time look over the discharge state of lithium cell, and is simple and convenient, therefore, the clothes hanger is strong in practicability.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is an exploded view of FIG. 1;
fig. 3 is a perspective view of a heat sink in one embodiment of the present invention;
wherein the figures identify the description:
1-energy releasing shell; 2, inserting holes;
3, energy release resistance; 4/4' -a heat sink;
5, radiating holes; 6-a display device;
11-a bottom shell; 12-a top cover;
41/41' -a heat sink; 42/42' -a heat sink.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, the present invention provides an energy releasing device for a lithium battery, which includes an energy releasing casing 1, two insertion holes 2 installed on the energy releasing casing 1, and an energy releasing resistor 3 and a heat sink 4/4' disposed in the energy releasing casing 1; the energy release resistor 3 is also electrically connected with the two jacks 2, and the two jacks 2 are used for being connected into a lithium battery to discharge the lithium battery through the energy release resistor 3; the heat sink 4/4 'is further in contact with the energy release resistor 3, the energy release casing 1 is further provided with a plurality of heat dissipation holes 5, and the heat sink 4/4' is used for dissipating heat generated by the energy release resistor 3 to the outside through the plurality of heat dissipation holes 5.
Wherein the heat sink 4/4 'includes a heat sink 41/41', and a number of fins 42/42 'arranged on a heat sink 41/41'; the heat sink 41/41 'is mounted in the energy release housing 1, and the energy release resistor 3 is disposed on the heat sink 41/41'.
In one embodiment, the plurality of heat dissipation fins 42 are arranged on two sides of the heat dissipation base 41 at intervals in parallel along the length direction of the heat dissipation base 41, and the energy-releasing resistor 3 is installed on one side of the heat dissipation base 41.
In another embodiment, the plurality of heat dissipation fins 42 'are arranged at the bottom of the heat dissipation base 41' in parallel and at intervals along the length direction of the heat dissipation base 41 ', and the energy-releasing resistor 3 is installed at the top of the heat dissipation base 41'.
In summary of the above embodiments, the energy releasing casing 1 includes a bottom case 11, and a top cover 12 detachably connected to the bottom case 11; the energy release resistor 3 and the radiator 4/4' are uniformly distributed in the bottom shell 11, and the two jacks 2 are arranged on the top cover 12; the lithium battery energy release device also comprises a display device 6 arranged on the top cover 12; the top of the top cover 12 is also provided with an installation groove, and the display device 6 comprises a voltage and current indicator arranged in the installation groove; the energy release shell 1 is a transparent shell.
The utility model discloses the theory of operation:
as shown in fig. 1 to 3, the energy releasing casing 1 can be made of transparent acrylic material, so that the internal structure is clear at a glance, and the assembly and maintenance of workers can be facilitated; the bottom shell 11 of the energy releasing shell 1 is detachably connected with the top cover 12, a plurality of fixing holes can be formed in the top of the bottom shell 11, and then the fixing holes are locked and fixed through locking screws so as to enhance the stability of the energy releasing shell, and meanwhile, the jack 2 and the display device 6 are integrated on the top cover 12, so that the energy releasing shell is convenient to disassemble and assemble, and is simple and convenient; the two jacks 2 can adopt conjoined 4mm banana jacks 2, one is red and one is black, a lithium battery can be conveniently accessed (the lithium battery is connected with the jack 2 through a discharge cable of a banana plug-to-crocodile clip), one end of the discharge cable is the crocodile clip and is connected with the lithium battery to be discharged, the other end of the discharge cable is a plug, the red jack 2 and the black jack 2 respectively correspond to a positive pole and a negative pole, and when the insertion is wrong, a voltage and current indicator cannot be lightened; in one embodiment, the power of the energy release resistor 3 is 50W, and the resistance is 1 Ω, which can be freely replaced according to actual use requirements.
With continued reference to fig. 3, in a preferred embodiment, the heat sink fins 42 of the heat sink 4 are disposed on both sides of the heat sink 41, and the energy discharging resistor 3 is mounted on one side of the heat sink 41; the energy release device can only operate safely when the thermal resistance of the heat sink 42 is designed to satisfy the following equation:
Rz0(thermal resistance of radiator 4)<Rz1(Total thermal resistance of energy-releasing resistor 3), i.e.
Wherein, KSThe heat conductivity of the metal material used for the heat sink 4 (in this embodiment, the heat sink 4 is made of aluminum), and the K of pure aluminum at 20 ℃S175.6KW/(M × c), b is the tooth width of the fin 42, M is the tooth height of the fin 42, n is the number of teeth of the fin 42, L is the length of the fin 42, T isjFor maximum allowable temperature, T, of the energy-releasing resistor 3aThe temperature of the environment where the heat sink 42 is located (here, the temperature inside the energy releasing casing 1), δ is the heat conduction efficiency from the energy releasing resistor 3 to the heat sink 42, and is generally set to 60%.
The average power consumption of the energy release resistor 3 is generally 16W, and if the room temperature is 25 ℃ after the heat balance is achieved and the surface temperature of the energy release shell 1 is 55 ℃ (the temperature of the energy release shell 1 is 30 ℃), the temperature of the air in the energy release shell 1 reaches 85 ℃. The maximum allowable temperature of the energy release resistor 3 at this power (16W/50W: 32%) is about 200 ℃, and theoretically, the thermal resistance of the heat sink 42 is as follows under the condition that the heat conduction efficiency of the energy release resistor 3 and the heat sink 42 is set to 60%:
Rzo＝(200-85)℃÷16W/60％＝11.9℃/W
thus, in this embodiment, the radiator 4 is designed to have L of 12mm, b of 3mm, n of 20 and L of 100mm, without taking into account the wind speed:
Rzo＝0.012/(1.16*175.6*0.1*0.003*20)＝9.8℃/W<11.9 ℃/W, and meets the heat dissipation requirement.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The energy releasing device of the lithium battery is characterized by comprising an energy releasing shell, two jacks arranged on the energy releasing shell, an energy releasing resistor and a radiator, wherein the energy releasing resistor and the radiator are arranged in the energy releasing shell; the energy release resistor is also electrically connected with the two jacks, and the two jacks are used for accessing the lithium battery to discharge the lithium battery through the energy release resistor; the radiator is also contacted with the energy release resistor, the energy release shell is also provided with a plurality of radiating holes, and the radiator is used for radiating heat generated by the energy release resistor to the outside through the plurality of radiating holes.
2. The lithium battery energy release device of claim 1, wherein the heat sink comprises a heat sink base and a plurality of fins disposed on the heat sink base; the heat dissipation seat is installed in the energy release shell, and the energy release resistor is arranged on the heat dissipation seat.
3. The lithium battery energy release device as claimed in claim 2, wherein the plurality of heat dissipation fins are arranged on two sides of the heat dissipation base at intervals in parallel along the length direction of the heat dissipation base, and the energy release resistor is mounted on one side of the heat dissipation base.
4. The lithium battery energy release device as claimed in claim 2, wherein the plurality of heat dissipation fins are arranged at the bottom of the heat dissipation base in parallel at intervals along the length direction of the heat dissipation base, and the energy release resistor is mounted at the top of the heat dissipation base.
5. The lithium battery energy release device as claimed in claim 3 or 4, wherein the energy release casing comprises a bottom shell and a top cover detachably connected with the bottom shell; the energy release resistor and the radiator are uniformly distributed in the bottom shell, and the two jacks are arranged on the top cover.
6. The lithium battery energy release device of claim 5, further comprising a display device mounted on the top cover.
7. The lithium battery energy release device as claimed in claim 6, wherein the top cover further defines a mounting groove, and the display device includes a voltage/current indicator mounted in the mounting groove.
8. The lithium battery energy release device of claim 1, wherein the energy release housing is a transparent housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021950115.4U CN212848562U (en) | 2020-09-08 | 2020-09-08 | Lithium battery energy release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021950115.4U CN212848562U (en) | 2020-09-08 | 2020-09-08 | Lithium battery energy release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212848562U true CN212848562U (en) | 2021-03-30 |
Family
ID=75146657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021950115.4U Active CN212848562U (en) | 2020-09-08 | 2020-09-08 | Lithium battery energy release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212848562U (en) |
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2020
- 2020-09-08 CN CN202021950115.4U patent/CN212848562U/en active Active
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