CN115882104A - Battery management system of new energy automobile - Google Patents
Battery management system of new energy automobile Download PDFInfo
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- CN115882104A CN115882104A CN202211313764.7A CN202211313764A CN115882104A CN 115882104 A CN115882104 A CN 115882104A CN 202211313764 A CN202211313764 A CN 202211313764A CN 115882104 A CN115882104 A CN 115882104A
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- new energy
- energy automobile
- battery
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- 229910052751 metal Inorganic materials 0.000 claims description 237
- 239000002184 metal Substances 0.000 claims description 237
- 239000007788 liquid Substances 0.000 claims description 68
- 238000001816 cooling Methods 0.000 claims description 42
- 238000012546 transfer Methods 0.000 claims description 32
- 239000004065 semiconductor Substances 0.000 claims description 22
- 239000007789 gas Substances 0.000 claims description 21
- 230000017525 heat dissipation Effects 0.000 claims description 21
- 238000010521 absorption reaction Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000002918 waste heat Substances 0.000 claims description 15
- 230000009467 reduction Effects 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 238000005338 heat storage Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000007774 positive electrode material Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000011206 ternary composite Substances 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 description 1
- HFCVPDYCRZVZDF-UHFFFAOYSA-N [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O Chemical compound [Li+].[Co+2].[Ni+2].[O-][Mn]([O-])(=O)=O HFCVPDYCRZVZDF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007894 caplet Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001868 cobalt Chemical class 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- CKFRRHLHAJZIIN-UHFFFAOYSA-N cobalt lithium Chemical compound [Li].[Co] CKFRRHLHAJZIIN-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
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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
Abstract
The invention discloses a battery management system of a new energy automobile, which belongs to the field of new energy automobile batteries and comprises a Vehicle Control Unit (VCU), a new energy automobile battery and a temperature sensor which is arranged on the surface of the new energy automobile battery and is used for detecting the body surface temperature of the new energy automobile battery when the new energy automobile battery works.
Description
Technical Field
The invention relates to the field of new energy automobile batteries, in particular to a battery management system of a new energy automobile.
Background
The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and is advanced in technical principle, novel in technology and novel in structure.
As is well known, three common batteries of a new energy automobile are: ternary lithium batteries, lithium iron phosphate batteries and nickel-metal hydride batteries. Wherein, the ternary lithium battery is selected for most high-end new energy automobile on the market, and the ternary lithium battery is named as follows: the ternary polymer lithium battery is a lithium battery of a ternary positive electrode material using nickel cobalt lithium manganate or nickel cobalt lithium aluminate as a positive electrode material, the ternary composite positive electrode material takes nickel salt, cobalt salt and manganese salt as raw materials, the proportion of nickel, cobalt and manganese in the ternary composite positive electrode material can be adjusted according to actual needs, and the battery using the ternary material as the positive electrode has high safety compared with a lithium cobalt acid battery.
Compared with other two batteries, the ternary lithium battery used by the new energy automobile has higher energy density and can provide more endurance mileage for the automobile, and the ternary lithium battery has stronger cold resistance, but has poorer stability in a high-temperature environment, is easy to decompose at about 200 ℃, and is easy to generate a spontaneous combustion phenomenon under the action of high temperature, so that the service life of the new energy automobile battery is greatly reduced, and the life safety of a driver can be seriously threatened.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide a battery management system of a new energy automobile, and provides a battery system of the new energy automobile, which can timely perform cooling treatment on the surface of a battery when the battery is in a working state and has a high temperature, and can store waste heat energy generated during the working of the battery, recycle the heat energy generated during the working process of the battery, save energy, and perform preheating treatment on the battery before charging after the battery is closed in a low-temperature environment at night, so that the problem that the normal charging of the battery is influenced due to the rapid temperature reduction after the battery is closed is avoided.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a new energy automobile's battery management system, including Vehicle Control Unit (VCU) and new energy automobile battery and set up in new energy automobile battery surface and be used for detecting the temperature sensor of its during operation body surface temperature when new energy automobile battery is in operating condition, the periphery cover of new energy automobile battery is equipped with metal heat conduction cover, all sealed fixedly connected with dustcoat on metal heat conduction cover's top surface and the bottom surface, the equal fixedly connected with heat transfer box in inside of every dustcoat, be connected with finned radiator on the diapire of heat transfer box inner chamber, finned radiator is connected with radiator fan on the one side of keeping away from heat transfer box inner chamber diapire, all evenly be connected with a plurality of semiconductor refrigeration pieces on the opposite face of two heat transfer boxes, and the heat absorption end of semiconductor refrigeration piece all closely laminates with the surface of metal heat conduction cover, the heat release end of semiconductor refrigeration piece is towards the heat transfer box that corresponds, all communicate on the opposite face of two dustcoats has the blast pipe, be equipped with on the blast pipe and be used for collecting the waste heat that the new energy automobile battery during operation produced and provide heat energy automobile storage unit to new energy automobile battery reverse energy automobile battery when the temperature is lower.
The waste heat storage unit comprises a hollow metal box fixedly connected inside an exhaust port of the exhaust pipe, liquid heat-conducting media are filled inside the hollow metal box, a heat-conducting rod is fixedly connected inside the hollow metal box, one end of the heat-conducting rod penetrates out of the hollow metal box, a plurality of temperature reduction parts are uniformly arranged on the side wall of the part, located inside the hollow metal box, of the heat-conducting rod, a metal piston cylinder is arranged at the end, extending out of the hollow metal box, of the heat-conducting rod, a gas medium is filled inside the metal piston cylinder, a piston body is further connected inside the metal piston cylinder in a sliding and sealing mode, one end, extending out of the hollow metal box, of the heat-conducting rod extends into the gas medium inside the metal piston cylinder, a follow-up metal block is connected to one side, close to the gas medium, of the piston body is tightly attached to the inner wall of the corresponding metal piston cylinder, two straight grooves are symmetrically formed in the end, far away from the piston body, of the follow-up metal block, guide thin rods matched with the piston body are movably inserted into each straight groove, the guide thin rod is made of the non-heat-conducting rod, a reset spring is sleeved on the periphery of each guide thin rod, and the position, where the follow-up metal block is far away from the corresponding piston body;
one end of the guide thin rod extends into the straight groove, the other end of the guide thin rod is connected with the inner wall of the metal piston cylinder barrel, one end of the reset spring is connected with one end, away from the piston body, of the follow-up metal block, and the other end of the reset spring is connected with the inner wall of the metal piston cylinder barrel;
the front side and the rear side of the metal piston cylinder barrel are provided with heat conducting arm components.
Further, the heat conduction arm component includes the metal linking arm, the one end of metal linking arm passes blast pipe and metal piston cylinder respectively and extends to the inside of metal piston cylinder, and the metal linking arm extends to one of metal piston cylinder inside and serves and be connected with heat transfer spring, the one end that heat transfer spring kept away from the metal linking arm is connected with metal circular arc top, and the outer wall of heat transfer spring's one end and follow-up metal block is closely laminated to metal circular arc top, be connected with on the other end of metal linking arm with metal heat conduction cover outer wall fixed connection's heat conduction paster, the surface cladding of heat conduction paster has the outer heat preservation of one deck.
Further, the temperature reduction part includes the hollow metal cylinder that is connected with the heat conduction stick lateral wall, the inside of hollow metal cylinder is connected with middle part cavity cylinder through a non-heat-conducting mount, a breach has been seted up on the lateral wall of middle part cavity cylinder, the inside of middle part cavity cylinder is connected with fixed stop with this breach position department of correspondence, be connected with the elasticity bag piece on the fixed stop, and the space intussuseption that encloses by fixed stop and elasticity bag piece is filled with gaseous medium, evenly be equipped with a plurality of energy exchangers on the middle part cavity cylinder, the periphery cover of middle part cavity cylinder is equipped with the insulating layer, the inside packing of hollow metal cylinder has liquid heat-conducting medium, and this liquid heat-conducting medium is in between hollow metal cylinder to the insulating layer, the inside of middle part cavity cylinder also is filled with liquid heat-conducting medium.
Further, the energy exchanger includes the heat conduction cover body of fixed connection in middle part cavity cylinder inside, be equipped with an annular circulation chamber on the heat conduction cover body casing, the internal connection in this annular circulation chamber has the layer that absorbs water, the inside on the layer that absorbs water adsorbs there is liquid medium, the internal connection of the heat conduction cover body has the water conservancy diversion tubular metal resonator, the both ends of water conservancy diversion tubular metal resonator all communicate there is check valve, the inside of the heat conduction cover body also is filled with liquid heat-conducting medium, and this liquid heat-conducting medium is in between the heat conduction cover body and the water conservancy diversion tubular metal resonator, the equal sealing connection in both ends of water conservancy diversion tubular metal resonator has check valve, and the orientation of two check valve exit ends is the same.
Furthermore, the check valves connected with the two ends of the flow guide metal pipe are connected with the outer wall of the middle hollow cylinder, one end of the flow guide metal pipe penetrates through the middle hollow cylinder to be fixedly connected with the outlet end of one check valve in a sealing mode, and the other end of the flow guide metal pipe is fixedly connected with the inlet end of the other check valve in a sealing mode.
Furthermore, the temperature sensor, the semiconductor refrigeration piece and the cooling fan are electrically connected with a Vehicle Control Unit (VCU).
Further, the metal piston cylinder is located inside the exhaust port of the exhaust pipe.
Furthermore, the inlet of the exhaust pipe is located above the corresponding heat dissipation fan.
Further, the gas medium is nitrogen gas.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) The invention provides a new energy automobile battery system, which can timely cool the surface of a battery when the battery is in a working state and has higher temperature, and can also store the waste heat energy generated when the battery works, so that the heat energy generated in the working process of the battery can be recycled, and the energy is saved.
(2) When the new energy automobile battery is in a working state, heat energy on the surface of the new energy automobile battery is transferred to a heat transfer box through a metal heat conduction sleeve, primary heat dissipation is achieved through a finned radiator, the temperature on the surface of the new energy automobile battery is detected through a temperature sensor arranged on the surface of the new energy automobile battery, a detection signal is transmitted to a Vehicle Control Unit (VCU) in real time, when the value of the detection signal of the temperature sensor is larger than a first preset value of the Vehicle Control Unit (VCU), the Vehicle Control Unit (VCU) controls a heat dissipation fan to be started, hot air in an outer cover body is pumped out through the heat dissipation fan, the hot air is exhausted through an exhaust port of an exhaust pipe, when the surface temperature of the new energy automobile battery continuously rises and the value of the detection signal transmitted by the temperature sensor is higher than the upper limit of the preset value of the Vehicle Control Unit (VCU), the Vehicle Control Unit (VCU) controls a semiconductor refrigeration sheet to be started, heat energy at a heat conduction sleeve is absorbed by a heat absorption end of the semiconductor sheet, and secondary quick heat dissipation processing of the new energy automobile battery is indirectly achieved, the cooling effect of the new energy automobile battery is improved, the cooling effect is achieved, and the safety of spontaneous combustion caused by the high temperature of the new energy automobile battery in the new energy automobile battery during the working process is avoided.
(3) When the semiconductor refrigerating sheet and the cooling fan are used for carrying out double cooling and cooling treatment on the new energy automobile battery in a working state, and when the surface temperature of the new energy automobile battery is reduced to the lower limit of a preset value of a Vehicle Control Unit (VCU), the Vehicle Control Unit (VCU) controls the semiconductor refrigerating sheet to be closed, so that the influence on normal discharge of the new energy automobile battery due to excessive temperature reduction can be avoided.
(4) When the heat energy in the outer cover body is extracted by the heat radiation fan and then is exhausted from the exhaust port of the exhaust pipe, when hot air in the exhaust pipe contacts the heat conduction rod and the surface of the hollow metal box, the heat is respectively transferred to the liquid heat conduction medium in the hollow metal box by the heat conduction rod and the hollow metal box, and then the heat absorption treatment is carried out on the heat energy in the heat radiation air flow exhausted by the exhaust pipe by the liquid heat conduction medium, so that on one hand, the temperature of the air circulating in the exhaust pipe can be reduced, the cooling and heat radiation treatment on the air is realized, the cooling and heat radiation effects on the new energy automobile battery are further improved, on the other hand, after the liquid heat conduction medium in the hollow metal box absorbs the heat energy in the circulating hot air in the exhaust pipe, after the new energy automobile battery is in a closed state, the surface temperature of the metal piston is reduced, the volume of the gas medium in the metal piston is gradually contracted, under the elastic force of the reset spring, the follow-up metal block moves towards the direction of the heat conduction rod, the end part of the heat conduction rod is inserted into the clamping groove on the follow-up metal block, so that the heat conduction rod is quickly transferred to the metal cylinder, the heat energy battery can be transferred to the metal cylinder, and the connection arm of the new energy battery can be prevented from being transferred to the metal cylinder to be normally closed after the new energy automobile battery is preheated metal cylinder, and the new energy battery is transferred to be normally closed.
(5) When the heat energy on the surface of the hollow metal box is gradually transferred to the liquid heat-conducting medium inside the hollow metal box and the temperature inside the liquid heat-conducting medium is raised, the heat is transferred to the liquid heat-conducting medium contained inside the hollow metal box by the hollow metal cylinder, so that the temperature of the liquid heat-conducting medium contained inside the hollow metal cylinder is gradually raised, when the heat is transferred to the gas medium inside the hollow metal cylinder by the elastic bag piece, the gas medium is heated and expands by volume to drive the elastic bag piece to expand outwards and continuously extrude the liquid heat-conducting medium between the hollow metal cylinder and the heat-insulating layer to the inside of the diversion metal pipe through the one-way valve, and the heat energy in the liquid heat-conducting medium extruded to the inside of the diversion metal pipe is transferred to the water absorbing layer and the liquid heat-conducting medium between the heat-conducting cover body and the diversion metal pipe through the diversion metal pipe, after the liquid medium adsorbed in the water absorption layer and the liquid heat-conducting medium between the heat-conducting cover body and the flow-guiding metal pipe are used for carrying out double heat absorption treatment on the heat energy, the liquid heat-conducting medium with the reduced temperature is discharged by the one-way valve connected with the other end of the flow-guiding metal pipe, and the circulating cooling treatment on the liquid heat-conducting medium between the hollow metal cylinder and the heat-insulating layer is realized, so that the timely cooling treatment on the liquid heat-conducting medium contained in the hollow metal box is facilitated, the heat dissipation performance of the novel energy automobile battery in a working state is further improved, and the cooling and heat dissipation effect of a waste heat storage unit arranged in the exhaust pipe on the air flow with the heat energy discharged by the exhaust pipe is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 3 is an enlarged view of a portion of the present invention at B of FIG. 1;
FIG. 4 is a cross-sectional view of the waste heat storage unit of the present invention;
FIG. 5 is an enlarged view of a portion of the invention at C of FIG. 4;
FIG. 6 is a cross-sectional view of a temperature reducing member of the present invention;
FIG. 7 is a side cross-sectional view of a hollow metal cylinder in the temperature reduction member of the present invention;
FIG. 8 is an enlarged view of a portion of the invention at D in FIG. 7;
FIG. 9 is a schematic diagram showing the change of the shape of the elastic bladder that expands when the liquid heat-conducting medium in the hollow metal cylinder is heated and the volume of the gas medium is heated to drive the elastic bladder to expand;
FIG. 10 is a block diagram of the system of the present invention.
The numbering in the figures illustrates:
1. a new energy automobile battery; 200. a hollow metal cylinder; 201. a middle hollow cylinder; 202. a thermal insulation layer; 203. a one-way valve; 204. fixing the partition board; 205. an elastic caplet; 206. a heat conducting shield body; 207. a flow guiding metal pipe; 208. a water-absorbing layer; 3. a semiconductor refrigeration sheet; 4. an outer cover body; 6. a heat transfer box; 7. an exhaust pipe; 800. a hollow metal box; 801. a heat conducting rod; 803. a metal piston cylinder; 804. a metal connecting arm; 805. a piston body; 806. a follower metal block; 807. guiding the thin rod; 808. a return spring; 809. a metal arc plug; 810. a heat transfer spring; 812. an outer insulating layer; 813. a heat conducting patch; 10. a heat radiation fan; 11. a finned heat sink; 14. a liquid heat transfer medium; 15. a metal heat conductive sleeve; 16. a gaseous medium.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The embodiment is as follows:
referring to fig. 1 and 2, a battery management system of a new energy vehicle includes a vehicle control unit VCU, a new energy vehicle battery 1, and a temperature sensor disposed on a surface of the new energy vehicle battery 1 and used for detecting a body surface temperature of the new energy vehicle battery 1 when the new energy vehicle battery 1 is in a working state, a metal heat conduction sleeve 15 is sleeved on an outer periphery of the new energy vehicle battery 1, outer covers 4 are fixedly connected to top and bottom surfaces of the metal heat conduction sleeve 15 in a sealing manner, a heat transfer box 6 is fixedly connected to an inside of each outer cover 4, a fin-type heat sink 11 is connected to a bottom wall of an inner cavity of the heat transfer box 6, a heat dissipation fan 10 is connected to a side of the fin-type heat sink 11 away from the bottom wall of the inner cavity of the heat transfer box 6, a plurality of semiconductor cooling fins 3 are uniformly connected to opposite surfaces of the two heat transfer boxes 6, heat release ends of the semiconductor cooling fins 3 are closely attached to the surface of the metal heat conduction sleeve 15, heat release ends of the semiconductor cooling fins 3 face the corresponding heat transfer boxes 6, exhaust pipes 7 are respectively connected to the opposite surfaces of the two outer covers 4, and the exhaust pipes 7 are provided with units for collecting waste heat generated when the new energy vehicle battery 1 is working at a low temperature and the new energy vehicle battery 1 is used for providing heat for storing. The inlet of the exhaust pipe 7 is located above the corresponding radiator fan 10. The temperature sensor, the semiconductor refrigerating sheet 3 and the cooling fan 10 are electrically connected with the VCU of the vehicle control unit. The invention provides a new energy automobile battery system, which can timely cool the surface of a battery when the battery is in a working state and has higher temperature, and can store the waste heat generated during the working of the battery, and can recycle the heat generated during the working process of the battery, thereby saving energy. When the new energy automobile battery 1 is in a working state, heat energy on the surface of the new energy automobile battery 1 is transferred to the heat transfer box 6 through the metal heat conduction sleeve 15, primary heat dissipation is realized through the finned radiator 11 by heat on the surface of the heat transfer box 6, the temperature on the surface of the new energy automobile battery 1 is detected through the temperature sensor arranged on the surface of the new energy automobile battery 1, and a detection signal is transferred to the VCU of the whole automobile controller in real time, when the value of the detection signal of the temperature sensor is greater than a first preset value of the VCU of the whole automobile controller, the VCU of the whole automobile controller controls the cooling fan 10 to be started, the cooling fan 10 pumps hot air in the outer cover body 4 out, the hot air is exhausted through the exhaust port of the exhaust pipe 7, when the surface temperature of the new energy automobile battery 1 is continuously increased, and the value of the detection signal transmitted by the temperature sensor is higher than the upper limit of the preset value of the VCU of the whole automobile controller, the VCU of the whole automobile controller controls the semiconductor refrigerating sheet 3 to be started, and the heat energy automobile battery 3 absorbs heat energy at the heat conduction sleeve 15 by the heat absorption end of the new energy automobile battery 1, thereby realizing rapid cooling processing of the new energy automobile battery 1, and avoiding the rapid cooling of the new energy automobile battery 1 caused by indirect cooling accident in the cooling process. When the semiconductor refrigeration piece 3 and the cooling fan 10 perform double cooling and cooling treatment on the new energy automobile battery 1 in a working state, when the surface temperature of the new energy automobile battery 1 is reduced to the lower limit of the preset value of the vehicle control unit VCU, the vehicle control unit VCU controls the semiconductor refrigeration piece 3 to be closed, so that the influence on normal discharge of the new energy automobile battery 1 due to excessive temperature reduction can be avoided.
Referring to fig. 4, the waste heat storage unit includes a hollow metal box 800 fixedly connected to the inside of the exhaust port of the exhaust pipe 7, the inside of the hollow metal box 800 is filled with a liquid heat-conducting medium 14, the liquid heat-conducting medium 14 is preferably heat-conducting oil, the inside of the hollow metal box 800 is fixedly connected with a heat-conducting rod 801, one end of the heat conducting rod 801 penetrates out of the hollow metal box 800, a plurality of temperature reduction components are uniformly arranged on the side wall of the heat conducting rod 801 positioned in the hollow metal box 800, a metal piston cylinder 803 is arranged at the end part of the heat conducting rod 801 extending out of the hollow metal box 800, a gas medium 16 is filled in the metal piston cylinder 803, a piston body 805 is further connected in a sliding and sealing manner in the metal piston cylinder 803, one end of the heat conducting rod 801 extending out of the hollow metal box 800 extends into the gas medium 16 in the metal piston cylinder 803, a follower metal block 806 is attached to the side of the piston body 805 adjacent to the gaseous medium 16, the outer wall of the following metal block 806 is tightly attached to the inner wall of the corresponding metal piston cylinder 803, two straight grooves are symmetrically formed in one end, away from the piston body 805, of the following metal block 806, a guiding pin 807 matched with the straight grooves is movably inserted into each straight groove, the guiding thin rods 807 are made of a non-heat-conducting material, a return spring 808 is sleeved on the periphery of each guiding thin rod 807, a clamping groove matched with the following metal block 806 is formed in the position corresponding to the position of the heat conducting rod 801, one end of each guiding thin rod 807 extends into the straight groove, the other end of each following metal block 806 is connected with the inner wall of the metal piston cylinder 803, one end of each return spring 808 is connected with one end, away from the piston body 805, of each following metal block 806, the other end of each return spring is connected with the inner wall of the metal piston cylinder 803, and heat conducting arm components are arranged on the front side and the rear side of the metal piston cylinder 803. The metal piston bore 803 is inside the exhaust port of the exhaust pipe 7. The gaseous medium 16 is nitrogen gas. The heat conduction arm component includes metal linking arm 804, the one end of metal linking arm 804 passes blast pipe 7 and metal piston cylinder 803 respectively and extends to the inside of metal piston cylinder 803, and metal linking arm 804 extends to the inside one of metal piston cylinder 803 and serves and be connected with heat transfer spring 810, the one end that metal linking arm 804 was kept away from to heat transfer spring 810 is connected with metal circular arc top 809, and the one end that heat transfer spring 810 was kept away from to metal circular arc top 809 closely laminates with the outer wall of follow-up metal block 806, be connected with on the other end of metal linking arm 804 with metal heat conduction cover 15 outer wall fixed connection's heat conduction paster 813, the surface cladding of heat conduction paster 813 has one deck outer heat preservation 812. When the heat dissipation fan 10 extracts the heat energy inside the external housing 4 and discharges the heat energy through the discharge port of the exhaust pipe 7, and when the hot air inside the exhaust pipe 7 contacts the heat conduction rod 801 and the surface of the hollow metal case 800, the heat energy is transferred to the liquid heat conduction medium 14 inside the hollow metal case 800 by the heat conduction rod 801 and the hollow metal case 800 respectively, and then the heat energy in the heat dissipation airflow discharged by the exhaust pipe 7 is subjected to heat absorption by the liquid heat conduction medium 14, so that on one hand, the temperature of the air circulating inside the exhaust pipe 7 can be reduced, the cooling and heat dissipation treatment of the air can be realized, the cooling and heat dissipation effect on the new energy automobile battery 1 can be further improved, on the other hand, after the liquid heat conduction medium 14 inside the hollow metal case 800 absorbs the heat energy in the hot air circulating inside the exhaust pipe 7, and when the new energy automobile battery 1 is in a closed state, the surface temperature of the metal piston cylinder 803 is reduced, the volume of the gas medium 16 in the metal piston cylinder 803 is gradually contracted, under the action of the elastic force of the return spring 808, the follow-up metal block 806 moves towards the heat conducting rod 801 and the end part of the heat conducting rod 801 is inserted into the clamping groove on the follow-up metal block 806, so that the heat energy stored in the liquid heat conducting medium 14 is transferred to the follow-up metal block 806 through the heat conducting rod 801, then the heat energy is transferred to the metal arc top 809 through the metal piston cylinder 803, and finally the heat energy is transferred to the heat conducting patch 813 connected with the surface of the metal heat conducting sleeve 15 through the metal connecting arm 804, so that the invention can preheat the new energy automobile battery 1 before charging after being closed, and avoids the problem that the normal charging of the battery is influenced due to the too fast temperature reduction after the battery is closed.
Referring to fig. 6, the temperature reduction component includes a hollow metal cylinder 200 connected to a side wall of a heat conduction rod 801, the hollow metal cylinder 200 is connected to a middle hollow cylinder 201 through a non-heat-conducting fixing frame, a gap is formed in the side wall of the middle hollow cylinder 201, a fixing partition 204 is connected to a position corresponding to the gap inside the middle hollow cylinder 201, an elastic bladder 205 is connected to the fixing partition 204, a space surrounded by the fixing partition 204 and the elastic bladder 205 is filled with a gas medium 16, a plurality of energy exchangers are uniformly arranged on the middle hollow cylinder 201, a heat insulation layer 202 is sleeved on the periphery of the middle hollow cylinder 201, a liquid heat conduction medium 14 is filled inside the hollow metal cylinder 200, the liquid heat conduction medium 14 is located between the hollow metal cylinder 200 and the heat insulation layer 202, and the liquid heat conduction medium 14 is filled inside the middle hollow cylinder 201. Referring to fig. 7 to 9, the energy exchanger includes a heat conduction cover 206 fixedly connected to the inside of the middle hollow cylinder 201, an annular circulation cavity is disposed on a housing of the heat conduction cover 206, a water absorption layer 208 is connected to the inside of the annular circulation cavity, the water absorption layer 208 is made of water absorption fibers, a liquid medium is absorbed in the water absorption layer 208, a flow guiding metal pipe 207 is connected to the inside of the heat conduction cover 206, two ends of the flow guiding metal pipe 207 are both communicated with one-way valves 203, the inside of the heat conduction cover 206 is also filled with a liquid heat conducting medium 14, the liquid heat conducting medium 14 is located between the heat conduction cover 206 and the flow guiding metal pipe 207, two ends of the flow guiding metal pipe 207 are both hermetically connected with one-way valves 203, and outlet ends of the two one-way valves 203 are oriented in the same direction. The check valves 203 connected to the two ends of the flow guiding metal pipe 207 are connected to the outer wall of the middle hollow cylinder 201, and one end of the flow guiding metal pipe 207 penetrates through the middle hollow cylinder 201 to be fixedly connected with the outlet end of one check valve 203 in a sealing manner, and the other end of the flow guiding metal pipe is fixedly connected with the inlet end of the other check valve 203 in a sealing manner. When the heat energy on the surface of the hollow metal tank 800 is gradually transferred to the liquid heat-conducting medium 14 inside the hollow metal tank and the temperature inside the liquid heat-conducting medium 14 is raised, the heat is transferred to the liquid heat-conducting medium 14 contained inside the hollow metal tank 200 by the hollow metal cylinder 200, so that the temperature of the liquid heat-conducting medium 14 contained inside the hollow metal cylinder 200 is gradually raised, when the heat is transferred to the gas medium 16 inside the hollow metal cylinder by the elastic bladder sheet 205, the gas medium 16 is heated to expand and drive the elastic bladder sheet 205 to expand outwards and continuously extrude the liquid heat-conducting medium 14 between the hollow metal cylinder 200 and the heat-insulating layer 202 to the inside of the flow-guiding metal pipe 207 through the one-way valve 203, the heat energy in the liquid heat-conducting medium 14 extruded to the inside of the flow-guiding metal pipe 207 is transferred to the water absorbing layer 208 and the liquid heat-conducting medium 14 between the heat-conducting cover 206 and the flow-guiding metal pipe 207 through the liquid medium absorbed inside the water-absorbing layer 208 and the liquid heat-conducting medium 14 between the heat-conducting cover 206 and the flow-guiding metal pipe 207 after the double heat-absorbing heat-conducting medium 14 is subjected to the heat-absorbing heat-treating, so that the heat-conducting medium 14 and the heat-dissipating exhaust pipe 7 connected by the flow-guiding metal pipe 203 of the flow-conducting medium is connected to the heat-conducting medium.
Referring to fig. 1 to 10, the present invention provides a new energy vehicle battery system, which can cool the surface of a battery in time when the battery is in a working state and at a high temperature, and can store the waste heat generated during the operation of the battery, and can recycle the heat generated during the operation of the battery, so as to save energy.
When the new energy automobile battery 1 is in a working state, heat energy on the surface of the new energy automobile battery 1 is transferred to the heat transfer box 6 through the metal heat conduction sleeve 15, primary heat dissipation is realized through the finned radiator 11 by heat on the surface of the heat transfer box 6, the temperature on the surface of the new energy automobile battery 1 is detected through the temperature sensor arranged on the surface of the new energy automobile battery 1, and a detection signal is transferred to the VCU of the whole automobile controller in real time, when the value of the detection signal of the temperature sensor is greater than a first preset value of the VCU of the whole automobile controller, the VCU of the whole automobile controller controls the cooling fan 10 to be started, the cooling fan 10 pumps hot air in the outer cover body 4 out, the hot air is exhausted through the exhaust port of the exhaust pipe 7, when the surface temperature of the new energy automobile battery 1 is continuously increased, and the value of the detection signal transmitted by the temperature sensor is higher than the upper limit of the preset value of the VCU of the whole automobile controller, the VCU of the whole automobile controller controls the semiconductor refrigerating sheet 3 to be started, and the heat energy automobile battery 3 absorbs heat energy at the heat conduction sleeve 15 by the heat absorption end of the new energy automobile battery 1, thereby realizing rapid cooling processing of the new energy automobile battery 1, and avoiding the rapid cooling of the new energy automobile battery 1 caused by indirect cooling accident in the cooling process. When the semiconductor refrigerating sheet 3 and the cooling fan 10 perform double cooling and cooling treatment on the new energy automobile battery 1 in a working state, when the surface temperature of the new energy automobile battery 1 is reduced to the lower limit of the preset value of the vehicle control unit VCU, the vehicle control unit VCU controls the semiconductor refrigerating sheet 3 to be closed, so that the influence on normal discharge of the new energy automobile battery 1 due to excessive temperature reduction can be avoided.
When the heat dissipation fan 10 extracts the heat energy inside the external housing 4 and discharges the heat energy through the discharge port of the exhaust pipe 7, and when the hot air inside the exhaust pipe 7 contacts the heat conduction rod 801 and the surface of the hollow metal case 800, the heat energy is transferred to the liquid heat conduction medium 14 inside the hollow metal case 800 by the heat conduction rod 801 and the hollow metal case 800 respectively, and then the heat energy in the heat dissipation airflow discharged by the exhaust pipe 7 is subjected to heat absorption by the liquid heat conduction medium 14, so that on one hand, the temperature of the air circulating inside the exhaust pipe 7 can be reduced, the cooling and heat dissipation treatment of the air can be realized, the cooling and heat dissipation effect on the new energy automobile battery 1 can be further improved, on the other hand, after the liquid heat conduction medium 14 inside the hollow metal case 800 absorbs the heat energy in the hot air circulating inside the exhaust pipe 7, and when the new energy automobile battery 1 is in a closed state, the surface temperature of the metal piston cylinder 803 is reduced, the volume of the gas medium 16 in the metal piston cylinder 803 is gradually contracted, under the action of the elastic force of the return spring 808, the follow-up metal block 806 moves towards the heat conducting rod 801 and the end part of the heat conducting rod 801 is inserted into the clamping groove on the follow-up metal block 806, so that the heat energy stored in the liquid heat conducting medium 14 is transferred to the follow-up metal block 806 through the heat conducting rod 801, then the heat energy is transferred to the metal arc top 809 through the metal piston cylinder 803, and finally the heat energy is transferred to the heat conducting patch 813 connected with the surface of the metal heat conducting sleeve 15 through the metal connecting arm 804, so that the invention can preheat the new energy automobile battery 1 before charging after being closed, and avoids the problem that the normal charging of the battery is influenced due to the too fast temperature reduction after the battery is closed.
When the heat energy on the surface of the hollow metal box 800 is gradually transferred to the liquid heat-conducting medium 14 inside the hollow metal box and the temperature inside the liquid heat-conducting medium 14 is raised, the heat energy is transferred from the hollow metal cylinder 200 to the liquid heat-conducting medium 14 contained inside the hollow metal cylinder 200, so that the temperature of the liquid heat-conducting medium 14 contained inside the hollow metal cylinder 200 is gradually raised, when the heat energy is transferred from the elastic bladder piece 205 to the gas medium 16 inside the hollow metal cylinder, the gas medium 16 is heated to expand in volume to drive the elastic bladder piece 205 to expand outwards and continuously extrude the liquid heat-conducting medium 14 between the hollow metal cylinder 200 and the heat-insulating layer 202 to the inside of the diversion metal tube 207 through the one-way valve 203, and the heat energy in the liquid heat-conducting medium 14 extruded to the inside the diversion metal tube 207 is further transferred to the water absorption layer 208 and the liquid heat-conducting medium 14 between the heat-conducting cover 206 and the diversion metal tube 207 through the diversion metal tube 207, after the liquid medium adsorbed in the water absorbing layer 208 and the liquid heat-conducting medium 14 between the heat-conducting cover body 206 and the flow-guiding metal tube 207 perform double heat absorption treatment on the heat energy, the liquid heat-conducting medium 14 with the reduced temperature is discharged through the one-way valve 203 connected to the other end of the flow-guiding metal tube 207, so that the circulating cooling treatment on the liquid heat-conducting medium 14 between the hollow metal cylinder 200 and the heat-insulating layer 202 is realized, the timely cooling treatment on the liquid heat-conducting medium 14 contained in the hollow metal box 800 is facilitated, the heat dissipation performance of the new energy vehicle battery 1 in a working state is further improved, and the cooling and heat dissipation effects of a waste heat storage unit installed in the exhaust pipe 7 on the air flow with the heat energy discharged by the exhaust pipe 7 are ensured.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a new energy automobile's battery management system, includes Vehicle Control Unit (VCU) and new energy automobile battery (1) and sets up in new energy automobile battery (1) surface and be used for detecting its during operation body surface temperature's temperature sensor when new energy automobile battery (1) is in operating condition, its characterized in that: the periphery cover of new energy automobile battery (1) is equipped with metal heat conduction cover (15), equal sealed fixedly connected with cover (4) on the top surface and the bottom surface of metal heat conduction cover (15), the equal fixedly connected with heat transfer box (6) in inside of every cover (4), be connected with finned radiator (11) on the diapire of heat transfer box (6) inner chamber, be connected with radiator fan (10) on one side of heat transfer box (6) inner chamber diapire is kept away from to finned radiator (11), two all evenly be connected with a plurality of semiconductor refrigeration pieces (3) on the opposite face of heat transfer box (6), and the heat absorption end of refrigeration piece (3) all closely laminates with the surface of metal heat conduction cover (15), and the end of giving out heat of semiconductor refrigeration piece (3) is towards heat transfer box (6) that correspond, all communicates blast pipe (7) on the opposite face of two cover (4), be equipped with on blast pipe (7) and be used for collecting the waste heat that produces when new energy automobile battery (1) during operation and provide the reverse waste heat energy automobile battery waste heat storage unit round the day and night when the low temperature.
2. The battery management system of the new energy automobile according to claim 1, characterized in that: the waste heat storage unit comprises a hollow metal box (800) fixedly connected to the inside of an exhaust port of an exhaust pipe (7), a liquid heat-conducting medium (14) is filled in the hollow metal box (800), a heat-conducting rod (801) is fixedly connected to the inside of the hollow metal box (800), one end of the heat-conducting rod (801) penetrates out of the inside of the hollow metal box (800), the side wall of the heat-conducting rod (801) in the inner part of the hollow metal box (800) is uniformly provided with a plurality of temperature drop components, the end part of the heat-conducting rod (801) extending out of the inside of the hollow metal box (800) is provided with a metal piston cylinder barrel (803), the inside of the metal piston cylinder barrel (803) is filled with a gas medium (16), the inside of the metal piston cylinder barrel (803) is also connected with a piston body (805) in a sliding and sealing manner, one end of the heat-conducting rod (801) extending out of the inside of the hollow metal box (800) extends into the gas medium (16) in the metal piston cylinder barrel (803), one side of the piston cylinder barrel (805) close to the gas medium (16) is connected with a follow-up metal block (806), the outer wall of the follow-up metal block (806) is tightly attached to the corresponding to the inner wall of the metal cylinder barrel (803), and two metal rod (805), and a guide groove (805) is symmetrically arranged on the inner wall of the metal rod (806), and two metal rod (805) are symmetrically arranged on the metal rod (805), and a guide groove (806), the thin guide rods (807) are made of non-heat-conducting materials, a return spring (808) is sleeved on the periphery of each thin guide rod (807), and a clamping groove matched with one end of the follow-up metal block (806), which is far away from the piston body (805), is formed in the position corresponding to the position of the heat-conducting rod (801);
one end of the thin guide rod (807) extends into the straight groove, the other end of the thin guide rod is connected with the inner wall of the metal piston cylinder (803), one end of the return spring (808) is connected with one end, away from the piston body (805), of the follow-up metal block (806), and the other end of the return spring is connected with the inner wall of the metal piston cylinder (803);
and heat conducting arm components are arranged on the front side and the rear side of the metal piston cylinder barrel (803).
3. The battery management system of the new energy automobile according to claim 2, characterized in that: the heat conducting arm component comprises a metal connecting arm (804), one end of the metal connecting arm (804) penetrates through an exhaust pipe (7) and a metal piston cylinder barrel (803) respectively and extends to the inside of the metal piston cylinder barrel (803), one end of the metal connecting arm (804) extending to the inside of the metal piston cylinder barrel (803) is connected with a heat transfer spring (810), one end, away from the metal connecting arm (804), of the heat transfer spring (810) is connected with a metal arc ejecting head (809), one end, away from the heat transfer spring (810), of the metal arc ejecting head (809) is tightly attached to the outer wall of a follow-up metal block (806), the other end of the metal connecting arm (804) is connected with a heat conducting patch (813) fixedly connected with the outer wall of a metal heat conducting sleeve (15), and the outer surface of the heat conducting patch (813) is coated with an outer heat insulating layer (812).
4. The battery management system of the new energy automobile according to claim 2, characterized in that: the temperature reduction component comprises a hollow metal cylinder (200) connected with the side wall of a heat conduction rod (801), the interior of the hollow metal cylinder (200) is connected with a middle hollow cylinder (201) through a non-heat-conduction fixing frame, a notch is formed in the side wall of the middle hollow cylinder (201), a fixed partition plate (204) is connected to the position, corresponding to the notch, of the interior of the middle hollow cylinder (201), an elastic sac sheet (205) is connected to the fixed partition plate (204), a space defined by the fixed partition plate (204) and the elastic sac sheet (205) is filled with a gas medium (16), a plurality of energy exchangers are uniformly arranged on the middle hollow cylinder (201), a heat insulation layer (202) is sleeved on the periphery of the middle hollow cylinder (201), a liquid heat conduction medium (14) is filled in the hollow metal cylinder (200), the liquid heat conduction medium (14) is located between the hollow metal cylinder (200) and the heat insulation layer (202), and the liquid heat conduction medium (14) is also filled in the middle hollow cylinder (201).
5. The battery management system of the new energy automobile according to claim 4, characterized in that: the energy exchanger comprises a heat conduction cover body (206) fixedly connected to the inside of a middle hollow cylinder (201), an annular circulation cavity is formed in a shell of the heat conduction cover body (206), a water absorption layer (208) is connected to the inside of the annular circulation cavity, liquid media are absorbed in the water absorption layer (208), a flow guide metal pipe (207) is connected to the inside of the heat conduction cover body (206), one-way valves (203) are communicated with two ends of the flow guide metal pipe (207), liquid heat conduction media (14) are filled in the heat conduction cover body (206), the liquid heat conduction media (14) are located between the heat conduction cover body (206) and the flow guide metal pipe (207), the one-way valves (203) are hermetically connected to two ends of the flow guide metal pipe (207), and outlet ends of the two one-way valves (203) face towards the same direction.
6. The battery management system of the new energy automobile according to claim 5, characterized in that: the check valves (203) connected with the two ends of the flow guide metal pipe (207) are connected with the outer wall of the middle hollow cylinder (201), one end of the flow guide metal pipe (207) penetrates through the middle hollow cylinder (201) to be fixedly connected with the outlet end of one check valve (203) in a sealing mode, and the other end of the flow guide metal pipe is fixedly connected with the inlet end of the other check valve (203) in a sealing mode.
7. The battery management system of the new energy automobile according to claim 1, characterized in that: the temperature sensor, the semiconductor refrigerating sheet (3) and the cooling fan (10) are electrically connected with a Vehicle Control Unit (VCU).
8. The battery management system of the new energy automobile according to claim 2, characterized in that: the metal piston cylinder barrel (803) is positioned inside the exhaust port of the exhaust pipe (7).
9. The battery management system of the new energy automobile according to claim 1, characterized in that: and the inlet of the exhaust pipe (7) is positioned above the corresponding heat dissipation fan (10).
10. The battery management system of the new energy automobile according to claim 2, characterized in that: the gaseous medium (16) is nitrogen gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211313764.7A CN115882104A (en) | 2022-10-25 | 2022-10-25 | Battery management system of new energy automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211313764.7A CN115882104A (en) | 2022-10-25 | 2022-10-25 | Battery management system of new energy automobile |
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| Publication Number | Publication Date |
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| CN115882104A true CN115882104A (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211313764.7A Pending CN115882104A (en) | 2022-10-25 | 2022-10-25 | Battery management system of new energy automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117134035A (en) * | 2023-10-27 | 2023-11-28 | 北京维通利电气有限公司 | Radiator for energy storage battery pack |
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2022
- 2022-10-25 CN CN202211313764.7A patent/CN115882104A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117134035A (en) * | 2023-10-27 | 2023-11-28 | 北京维通利电气有限公司 | Radiator for energy storage battery pack |
| CN117134035B (en) * | 2023-10-27 | 2024-01-23 | 北京维通利电气有限公司 | Radiator for energy storage battery pack |
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Application publication date: 20230331 |