CN205028977U - Heat pipe reason device of lithium cell - Google Patents
Heat pipe reason device of lithium cell Download PDFInfo
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- CN205028977U CN205028977U CN201520771468.0U CN201520771468U CN205028977U CN 205028977 U CN205028977 U CN 205028977U CN 201520771468 U CN201520771468 U CN 201520771468U CN 205028977 U CN205028977 U CN 205028977U
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- box body
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to a heat pipe reason device of lithium cell, including battery box, induced draught fan, fan and electric heating film blow, the battery box includes outer box and inlayer box, the cuboid of outer box for being equipped with the apron, the inlayer box is the open cuboid in upper end, and in outer box was arranged in to the inlayer box, the leading flank of inlayer box, trailing flank corresponded the setting with leading flank, the trailing flank of outer box respectively, inject air inlet space and air -out space, form the wind channel from last between the adjacent phase change material layer to the annular phase change material layer that has many parallel interval arrangements on the inner wall of inlayer box, all is equipped with the vent with the wind channel intercommunication on the leading flank of inlayer box and the trailing flank, the leading flank of outer box and trailing flank are equipped with air intake and air outlet respectively, and induced draught fan locates in the air inlet space relatively with the air intake, and the air -out fan is located in the air -out space relatively with the air outlet, electric heating film locates on the outer wall of left surface, right flank and the lower surface of inlayer box.
Description
Technical field
The utility model relates to lithium battery technical field of temperature control, particularly relates to a kind of heat management device of lithium battery.
Background technology
Along with the raising of people's energy-conserving and environment-protective consciousness, reduce air pollution and solve energy crisis being more and more subject to people's attention, utilize dynamic lithium battery to replace oil equal energy source can not only alleviating energy crisis, can also environmental pollution be reduced.Therefore, development electric motor car, adopts clean energy resource, has become the direction of future city transport development.Dynamic lithium battery is as the critical component of electric motor car, and the quality of its performance directly affects economy, the fail safe of electric motor car.In order to keep good operating state, lithium battery best effort ambient temperature range is 10 DEG C ~ 45 DEG C.When temperature is too high, the easy spontaneous combustion of lithium battery thus cause serious accident.When lithium battery operating ambient temperature is lower than 10 DEG C, the discharge capacity of lithium battery starts to decline, and affects the normal use of electric motor car.Therefore, must bring into schedule to the temperature treatment of lithium battery.
At present, the heat dissipation problem of domestic and international many scholars to lithium battery is studied, and heat dissipating method is mainly: air-cooling, liquid cools method, heat pipe cooling method, phase-change material cooling method etc., but less for Study on Problems such as heating in winter.Existing car lithium battery heat abstractor major part adopts single radiating mode, radiating efficiency is lower, when residing for lithium battery, temperature is higher, lithium battery cannot normally work, and most of product can not heat lithium battery, make when surrounding environment is lower, lithium battery cisco unity malfunction, affect life-span and the fail safe of lithium battery.
Utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model is that to solve the radiating mode of prior art to lithium battery single, when cannot realize high temperature at a high speed heat radiation and low temperature time the problem that heats.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of heat management device of lithium battery, comprises battery case, induced draught fan, fan blowing and electric heating film, described battery case comprises outer-layer box body and interior layer box body, described outer-layer box body is the cuboid being provided with cover plate, described internal layer case is the uncovered cuboid in upper end, and described interior layer box body is placed in described outer-layer box body, the leading flank of described interior layer box body, trailing flank respectively with the leading flank of described outer-layer box body, trailing flank correspondence is arranged, limit air intake space and air-out space, the inwall of described interior layer box body is provided with from top to bottom many parallel and phase-change material layers of spaced annular, air channel is formed between adjacent phase-change material layers, the leading flank of described interior layer box body with trailing flank is equipped with the ventilating opening be communicated with described air channel, the leading flank of described outer-layer box body and trailing flank are respectively equipped with air inlet and air outlet, and described induced draught fan is located in described air intake space relative with described air inlet, and described air-out fan is located in described air-out space relative with described air outlet, described electric heating film is located on the outer wall of the left surface of described interior layer box body, right flank and lower surface.
Wherein, also comprise temperature sensor and controller, described temperature sensor, electric heating film, air inlet fan and fan blowing are connected with described controller respectively.
Wherein, described temperature sensor and controller are all located on described cover plate.
Wherein, described temperature sensor is flexibly connected with described cover plate, for detecting the temperature of lithium battery.
Wherein, also comprise energy-storage battery, described energy-storage battery is connected with described electric heating film, air inlet fan and fan blowing.
Wherein, the side of described cover plate and described outer-layer box body is rotationally connected by hinge, and the outer surface of described cover plate is solar panels, and the inner side that described energy-storage battery is fixed on described cover plate is connected with described solar panels.
Wherein, described interior layer box body is made of copper.
(3) beneficial effect
Technique scheme tool of the present utility model has the following advantages: in the heat management device of this lithium battery layer box body inwall on be provided with many spaced phase-change material layers from top to bottom, air channel is formed between adjacent phase-change material layers, inwall in interior layer box body is provided with the ventilating opening be communicated with air channel, the temperature of the lithium battery in casing is changed by decalescence and heat radiation, outer-layer box body is provided with air inlet and air outlet, convection current can be carried out with outside air and realize natural heat dissipation, at air inlet, induced draught fan is set everywhere, air outlet place arranges fan blowing, when the temperature regulating range of temperature residing for lithium battery higher than phase-change material layers, phase-change material layers is difficult to regulate temperature, now by induced draught fan and fan blowing, lithium battery is dispelled the heat, in addition, at the left surface of interior layer box body, the outer wall of right flank and downside is equipped with electric heating film, when the temperature regulating range of ambient temperature residing for lithium battery lower than phase-change material layers, by electric heating film, lithium battery is heated, work is carried out in the temperature range of the best.Utilize Natural Heat Convection, forced convertion heat radiation, phase-change material accumulation of heat simultaneously and force the mode of heating to carry out temperature adjustment to battery case, achieving lithium battery and heat when low temperature, the function of quick heat radiating during high temperature, improve life-span and the fail safe of lithium battery.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment ectomesoderm casing;
Fig. 2 is the structural representation (except cover plate) of the heat management device of the lithium battery of the utility model embodiment;
Fig. 3 is A-A direction view in Fig. 2.
In figure: 1: outer-layer box body; 2: cover plate; 3: energy-storage battery; 4: fan; 5: interior layer box body; 6: lithium battery; 7: controller; 8: temperature sensor; 9: hinge; 10: electric heating film; 51: the left surface of interior layer box body; 52: the right flank of interior layer box body; 53: the leading flank of interior layer box body; 54: the trailing flank of interior layer box body; 101: the leading flank of outer-layer box body; 102: the trailing flank of outer-layer box body; 401: induced draught fan; 402: fan blowing; 501: ventilating opening; 502: copper coin; 503: phase-change material layers; 1001: air intake space; 1002: air-out space; 1011: air inlet; 1012: air outlet.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
As Figure 1-3, the heat management device of a kind of lithium battery that the utility model embodiment provides, comprises battery case, induced draught fan 401 and fan blowing 402, battery case comprises outer-layer box body 1 and interior layer box body 5, and outer-layer box body 1 is for being provided with the cuboid of cover plate 2, and cover plate 2 is rotationally connected by hinge 9 with the side of outer-layer box body 1, interior layer box body 5 is cuboid, and upper end has uncovered, interior layer box body 5 is placed in described outer-layer box body 1, and the leading flank 53 of interior layer box body, trailing flank 54 respectively with the leading flank 101 of described outer-layer box body, trailing flank 102 correspondence is arranged, limit air intake space 1001 and air-out space 1001, namely in, the leading flank 53 of layer box body and trailing flank 54 all stretch out to two ends, and be tightly connected with the left surface 103 of outer-layer box body and right flank 104, air intake space 1001 is partitioned into by between the leading flank 53 of interior layer box body and the leading flank 101 of outer-layer box body, air-out space 1002 is partitioned between the trailing flank 54 of interior layer box body and the trailing flank 102 of outer-layer box body, the inwall of interior layer box body 5 is provided with from top to bottom many parallel and phase-change material layers 503 of spaced annular, air channel is formed between adjacent phase-change material layers 503, the leading flank 53 of interior layer box body with trailing flank 54 is equipped with the ventilating opening 501 be communicated with air channel, the leading flank 101 of outer-layer box body and trailing flank 102 are respectively equipped with air inlet 1011 and air outlet 1012, induced draught fan 401 is located in air intake space 1001 relative with air inlet 1011, fan blowing 402 to be located in air-out space 1002 relative with air outlet 1012, tile in the bottom surface of interior layer box body 5 one deck phase-change material layers, do not need to arrange ventilation air duct, it should be noted that, lithium battery 6 does not belong to content of the present utility model, the beneficial effect of the present embodiment for convenience of description, lithium battery 6 is positioned in interior layer box body 5, when lithium battery 6 is placed in interior layer box body 5, the side of lithium battery 6 and bottom surface all contact with phase-change material layers 503.When the temperature of lithium battery 6 exceedes the phase transition temperature of phase-change material layers 503, phase-change material layers 503 melts and absorbs heat, when lithium battery 6 temperature is too high, when phase-change material layers 503 cannot be mediated, induced draught fan 401 and fan blowing 402 are started working, induced draught fan 401 is from air inlet 1011 air draught to air intake space 1001, because the two ends of air intake space 1001 and outer-layer box body 1 are closed, wind can only enter in interior layer box body 5 through ventilating opening 501, and the annular passage formed along phase-change material layers 503 moves, ventilating opening 501 again on the trailing flank 54 of interior layer box body enters into air-out space, then blow out from air outlet 1012, the heat exchange of the air of layer box body in realizing, quick heat radiating is carried out to lithium battery 6, when the temperature of lithium battery 6 is lower, electric heating film 10 works, battery and phase-change material layers 503 are heated, phase-change material layers 503 absorbs heat in the process of heating, when the temperature of phase-change material layers 503 is raised to phase transition temperature, phase-change material layers 503 starts release heat, to ensure that lithium battery 6 works in this rational temperature range.In addition, the heat management device of above-mentioned lithium battery also comprises electric heating film 10, heating space 1003 is partitioned between the left surface 51 and the left surface 103 of outer-layer box body of interior layer box body, the right flank 52 of interior layer box body and outer-layer box body right flank 52 between be partitioned into heating space 1004, electric heating film 10 is located at heating space 1003, between the bottom surface of heating space 1004 and interior layer box body and the bottom surface of outer-layer box body, further, electric heating film 10 is located at the left surface 51 of interior layer box body, on the outer wall of the right flank 52 of interior layer box body and the lower surface of interior layer box body, when the temperature of lithium battery 6 is lower, heated by electric heating film 10 pairs of lithium batteries 6, electric heating film 10 is arranged on the left surface 51 of interior layer box body and the right flank 52 of interior layer box body, air inlet 1011 and air outlet 1012 are separately positioned on the leading flank 101 of outer-layer box body and the trailing flank 102 of outer-layer box body, heating and heat radiation are not interfere with each other, quick heat radiating when realizing high temperature, the effect heated during low temperature, and ensure that wind moves along air channel after air intake space 1001 enters into interior layer box body, heating space 1003 and heating space 1004 can not be entered into from the left surface 51 of interior layer box body and right flank 52.
Further, also comprise temperature sensor 8 and controller 7, temperature sensor 8 and controller 7 are all arranged on cover plate 2, and temperature sensor 8, electric heating film 10 are connected with controller 7 respectively with fan 4, temperature sensor 8 detects the temperature of lithium battery 6, and by the signal transmission of detection to controller 7, controller 7 heats according to the signal controlling electric heating film 10 accepted, or control to control induced draught fan 402 air draught simultaneously, the heat exchange of the air inside and outside interior layer box body 5 is carried out in fan blowing 401 blowing, realizes the heat radiation to lithium battery 6.
Further, the heat management device of above-mentioned lithium battery 6 also comprises energy-storage battery 3, energy-storage battery 3 is connected with electric heating film 10, air inlet fan 402 and fan blowing 401, and energy-storage battery 3 can charge, and provides electric energy for electric heating film 10, air inlet fan 402 and fan blowing 401.
Further, the outer surface of cover plate 2 is solar panels, energy-storage battery 3 is fixed on the inner side on cover plate 2 and is connected with solar panels, solar panels absorb solar energy and charge to energy-storage battery 3, energy-storage battery 3, except charging with solar energy, can also be charged by external power source when lithium battery 6 charges.
Further, temperature sensor 8 is flexibly connected with cover plate 2, for detecting the temperature of car lithium battery 6, when lithium battery 6 takes out from battery case, temperature sensor 8 can be connected on the inner surface of cover plate 2, after lithium battery 6 is put into battery case, temperature sensor 8 can be taken off from cover plate 2 surface being put into lithium battery 6, detect the temperature of lithium battery 6.
Further, interior layer box body 5 is made up of the metal material of high heat conduction, interior layer box body 5 in the present embodiment is made up of copper coin 502, copper coin 502 is provided with many ventilating openings be communicated with air channel 501, the heat conductivity of copper is better, add the heat exchange area of phase-change material layers 503, and achieve the macroencapsulation to phase-change material layers 503.
Further, phase-change material layers 503 by mass fraction be 95% polyethylene glycol and mass fraction be 5% expanded graphite make, improve the conductive coefficient of phase-change material layers 503 by adding expanded graphite, thus improve heat-exchange capacity.
Further, the phase transition temperature of phase-change material layers 503 is 40 °, and the optimum working temperature scope of lithium battery 6 is at 10 °-45 °, and phase-change material layers 503 starts to undergo phase transition absorption heat 40 ° time, lithium battery 6 is dispelled the heat, ensures that lithium battery 6 carries out work in optimum working temperature scope.In addition, phase-change material layers 503 not only plays the effect reducing temperature fluctuation, can also play the effect of heat-insulation layer, carry out accumulation of heat to lithium battery 6 in winter.
When lithium battery 6 works or summer temperature is very high, in lithium battery 6, heat constantly increases, when temperature sensor 8 measure temperature be greater than 40 DEG C time, phase transition temperature is that the phase-change material layers of 40 DEG C can melt absorption heat, reduces the temperature fluctuation of lithium battery 6; When temperature is greater than 45 DEG C, the fan 4 that controller 7 controls the air outlet 1012 of air inlet 1011 works simultaneously, realize the lithium battery 6 in interior layer box body 5 and the direct thermal convection of air outside outer-layer box body 1 by ventilating opening 501, air inlet 1011 and air outlet 1012, carry out quick heat radiating; When temperature drops to 40 DEG C, fan 4 quits work.When winter, lithium battery 6 worked, the heat come that sheds is absorbed by phase-change material layers 503, when lithium battery 6 does not work, phase-change material layers 503 dispels the heat, lithium battery 6 is played to the function of accumulation of heat, when temperature sensor 8 measure lithium battery 6 temperature be less than 10 DEG C time, controller 7 controls electric heating film 10 pairs of phase-change material layers 503 and lithium battery 6 heats, and phase-change material layers 503 absorbs heat; When temperature is raised to 40 DEG C, electric heating film 10 stops heating, and phase-change material layers 503 starts release heat, to guarantee that lithium battery 6 works in high efficiency temperature range.
To sum up, the heat management device of the lithium battery that the utility model provides utilizes phase-change material, fan dispels the heat to lithium battery, electric heating film is utilized to heat lithium battery, quick heat radiating when simultaneously achieving high temperature, the object of low-temperature heat, make lithium battery be in optimum working temperature all the time, improve fail safe and the useful life of lithium battery.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (7)
1. a heat management device for lithium battery, is characterized in that: comprise battery case, induced draught fan, fan blowing and electric heating film; Described battery case comprises outer-layer box body and interior layer box body, and described outer-layer box body is the cuboid being provided with cover plate; Described interior layer box body is the uncovered cuboid in upper end, and described interior layer box body is placed in described outer-layer box body, the leading flank of described interior layer box body, trailing flank respectively with the leading flank of described outer-layer box body, trailing flank is corresponding arranges, limit air intake space and air-out space, the inwall of described interior layer box body is provided with from top to bottom many parallel and phase-change material layers of spaced annular, form air channel between adjacent phase-change material layers, the leading flank on described interior layer box body with trailing flank is equipped with the ventilating opening be communicated with described air channel; The leading flank of described outer-layer box body and trailing flank are respectively equipped with air inlet and air outlet, and described induced draught fan is located in described air intake space relative with described air inlet, and described air-out fan is located in described air-out space relative with described air outlet; Described electric heating film is located on the outer wall of the left surface of described interior layer box body, right flank and lower surface.
2. the heat management device of lithium battery according to claim 1, is characterized in that: also comprise temperature sensor and controller, and described temperature sensor, electric heating film, air inlet fan and fan blowing are connected with described controller respectively.
3. the heat management device of lithium battery according to claim 2, is characterized in that: described temperature sensor and controller are all located on described cover plate.
4. the heat management device of lithium battery according to claim 3, is characterized in that: described temperature sensor is flexibly connected with described cover plate, for detecting the temperature of lithium battery.
5. the heat management device of lithium battery according to claim 1, is characterized in that: also comprise energy-storage battery, described energy-storage battery is connected with described electric heating film, air inlet fan and fan blowing.
6. the heat management device of lithium battery according to claim 5, it is characterized in that: the side of described cover plate and described outer-layer box body is rotationally connected by hinge, and the outer surface of described cover plate is solar panels, the inner side that described energy-storage battery is fixed on described cover plate is connected with described solar panels.
7. the heat management device of the lithium battery according to any one of claim 1-6, is characterized in that: described interior layer box body is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520771468.0U CN205028977U (en) | 2015-09-30 | 2015-09-30 | Heat pipe reason device of lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520771468.0U CN205028977U (en) | 2015-09-30 | 2015-09-30 | Heat pipe reason device of lithium cell |
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| CN205028977U true CN205028977U (en) | 2016-02-10 |
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| CN201520771468.0U Expired - Fee Related CN205028977U (en) | 2015-09-30 | 2015-09-30 | Heat pipe reason device of lithium cell |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720322A (en) * | 2016-03-23 | 2016-06-29 | 广东工业大学 | Battery module heating apparatus and manufacturing method therefor |
| CN105742723A (en) * | 2016-05-17 | 2016-07-06 | 江苏理工学院 | Low-temperature self-heating and high-temperature heat-dissipation overcharge-overdischarge prevention winding-type lithium battery and control method |
| CN106785233A (en) * | 2016-12-27 | 2017-05-31 | 宁德时代新能源科技股份有限公司 | Heating control method and heating control device for battery structure and battery system |
| CN107611523A (en) * | 2016-07-12 | 2018-01-19 | 有量科技股份有限公司 | Cell apparatus and its temperature control method |
| CN108649152A (en) * | 2018-05-08 | 2018-10-12 | 安徽上造智能设备科技有限公司 | Based on packing forms cell package fixed structure and its control system |
| CN108767163A (en) * | 2018-07-09 | 2018-11-06 | 深圳市诚思品科技有限公司 | A kind of lithium battery box |
| CN110786267A (en) * | 2019-11-28 | 2020-02-14 | 云南本季生物技术有限公司 | Chinese bee beehive |
| CN110786268A (en) * | 2019-11-28 | 2020-02-14 | 云南本季生物技术有限公司 | Heat preservation beehive |
| CN114865196A (en) * | 2022-06-10 | 2022-08-05 | 贵州电网有限责任公司 | Cold region self-temperature-control photovoltaic system battery box and temperature control method |
| CN116632446A (en) * | 2023-04-25 | 2023-08-22 | 湖南和普新能源科技有限公司 | High-rate energy storage power supply with good heat dissipation |
-
2015
- 2015-09-30 CN CN201520771468.0U patent/CN205028977U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720322A (en) * | 2016-03-23 | 2016-06-29 | 广东工业大学 | Battery module heating apparatus and manufacturing method therefor |
| CN105720322B (en) * | 2016-03-23 | 2018-11-23 | 广东工业大学 | A kind of battery modules heating device and its manufacturing method |
| CN105742723A (en) * | 2016-05-17 | 2016-07-06 | 江苏理工学院 | Low-temperature self-heating and high-temperature heat-dissipation overcharge-overdischarge prevention winding-type lithium battery and control method |
| CN105742723B (en) * | 2016-05-17 | 2018-05-08 | 江苏理工学院 | The anti-overcharge mistake of low temperature self-heating high temperature heat dissipation puts coiling type lithium battery and control method |
| CN107611523B (en) * | 2016-07-12 | 2020-04-28 | 有量科技股份有限公司 | Battery device and temperature control method thereof |
| CN107611523A (en) * | 2016-07-12 | 2018-01-19 | 有量科技股份有限公司 | Cell apparatus and its temperature control method |
| CN106785233A (en) * | 2016-12-27 | 2017-05-31 | 宁德时代新能源科技股份有限公司 | Heating control method and heating control device for battery structure and battery system |
| CN106785233B (en) * | 2016-12-27 | 2019-04-02 | 宁德时代新能源科技股份有限公司 | Heating control method and heating control device for battery structure and battery system |
| CN108649152A (en) * | 2018-05-08 | 2018-10-12 | 安徽上造智能设备科技有限公司 | Based on packing forms cell package fixed structure and its control system |
| CN108767163A (en) * | 2018-07-09 | 2018-11-06 | 深圳市诚思品科技有限公司 | A kind of lithium battery box |
| CN110786268A (en) * | 2019-11-28 | 2020-02-14 | 云南本季生物技术有限公司 | Heat preservation beehive |
| CN110786267A (en) * | 2019-11-28 | 2020-02-14 | 云南本季生物技术有限公司 | Chinese bee beehive |
| CN110786267B (en) * | 2019-11-28 | 2023-03-03 | 云南本季生物技术有限公司 | Chinese bee beehive |
| CN114865196A (en) * | 2022-06-10 | 2022-08-05 | 贵州电网有限责任公司 | Cold region self-temperature-control photovoltaic system battery box and temperature control method |
| CN116632446A (en) * | 2023-04-25 | 2023-08-22 | 湖南和普新能源科技有限公司 | High-rate energy storage power supply with good heat dissipation |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20200930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |