CN212257621U - External liquid cooling device for lithium ion power battery pack and battery pack applying external liquid cooling device - Google Patents
External liquid cooling device for lithium ion power battery pack and battery pack applying external liquid cooling device Download PDFInfo
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- CN212257621U CN212257621U CN202021032398.4U CN202021032398U CN212257621U CN 212257621 U CN212257621 U CN 212257621U CN 202021032398 U CN202021032398 U CN 202021032398U CN 212257621 U CN212257621 U CN 212257621U
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- water
- battery pack
- cooling plate
- support frame
- water cooling
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- 238000001816 cooling Methods 0.000 title claims abstract description 121
- 239000007788 liquid Substances 0.000 title claims abstract description 34
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 239000006260 foam Substances 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000000110 cooling liquid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000005219 brazing Methods 0.000 description 4
- 239000010960 cold rolled steel Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 210000003734 kidney Anatomy 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
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- 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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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses an external liquid cooling device of a lithium ion power battery pack, which comprises a water cooling plate (12); the water cooling plate (12) is in contact with the bottom surface of the battery pack (11) positioned outside; the water cooling plate (12) is embedded on the upper part of the water cooling plate support frame (13); the water cooling plate support frame (13) is of a hollow frame structure, and a plurality of elastic support foam (14) are filled in the water cooling plate support frame; the left end and the right end of the top of the water cooling plate support frame (13) are fixedly connected with the bottom of an external battery pack (11); the bottom of the water cooling plate support frame (13) is fixedly connected with a bottom guard plate (15). The utility model discloses can effectively improve the heat dissipation condition of battery package, in time give off the heat of battery package reliably, in addition, the utility model discloses an adopt external water-cooling board support frame, can support the water-cooling board, guarantee the radiating effect and the structural strength of water-cooling board, have advantages such as the design is simple and convenient, production and processing is simple, with low costs.
Description
Technical Field
The utility model relates to a new energy automobile trade battery system technical field especially relates to an external liquid cooling device of lithium ion power battery package and battery package of using thereof.
Background
Lithium ion batteries have the advantages of high specific energy, high cycle times, long storage time and the like, are widely applied to portable electronic equipment such as mobile phones, digital video cameras and portable computers, and are also widely applied to large and medium-sized electric equipment such as electric automobiles, electric bicycles, electric tools and the like, so that the performance requirements on the lithium ion batteries are higher and higher.
Along with the requirement of the national subsidy policy on the energy density of the battery system is higher and higher, the energy density of the single battery of the lithium iron phosphate battery mainly applied to the field of commercial vehicles is continuously improved, and the requirement on the grouping rate of the battery pack system is gradually improved.
At present, the dominant mode that monomer electric core improves energy density is for increasing the size of electric core to lead to the unit heat radiating area of battery to reduce, the heat that the battery produced in the course of the work, the transmission that can not be quick is gone out, not only causes the operating temperature of electric core to rise, makes the temperature distribution in the battery package uneven simultaneously moreover, aggravates the inconsistency of electric core, influences the life of battery.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an external liquid cooling device of lithium ion power battery package and battery package of using to the technical defect that prior art exists.
Therefore, the utility model provides a lithium ion power battery which comprises an external liquid cooling device, a water cooling plate;
the water cooling plate is in contact with the bottom surface of the battery pack positioned outside;
the water cooling plate is embedded on the upper part of the water cooling plate support frame;
the water cooling plate support frame is of a hollow frame structure, and a plurality of pieces of elastic support foam are filled in the water cooling plate support frame;
the left end and the right end of the top of the water cooling plate support frame are fixedly connected with the bottom of an external battery pack;
and the bottom of the water-cooling plate support frame is fixedly connected with a bottom guard plate.
The water cooling plate comprises hollow harmonica tubes which are longitudinally distributed;
the front end and the rear end of the harmonica tube are respectively communicated with the hollow water chamber;
both ends about the top of hydroecium that is located the place ahead are provided with inlet tube and outlet pipe respectively.
Wherein, the left and right ends of the hydroecium that is located the rear have a locating piece of welding respectively.
The water cooling plate support frame comprises middle beams which are longitudinally distributed;
the left side and the right side of the middle beam are respectively provided with a side longitudinal beam which is longitudinally distributed at equal intervals;
the middle beam and the side longitudinal beams are welded and fixed together through a plurality of cross beams distributed from front to back;
the water cooling plate support frame is internally provided with a plurality of foam accommodating openings;
each foam receiving opening is adapted to receive a piece of support foam.
Wherein, the harmonica pipe is arranged in a gap between the middle beam and the side longitudinal beam.
Wherein,
three fixing through holes are machined in each side longitudinal beam at equal intervals from front to back;
and the rear part of each side longitudinal beam is welded with a step-shaped positioning pin.
In addition, the utility model also provides a lithium ion power battery pack, which comprises the external liquid cooling device of the lithium ion power battery pack;
the external liquid cooling device of lithium ion power battery package, fixed mounting is in the bottom of battery package.
By the above the technical scheme the utility model provides a it is visible, compare with prior art, the utility model provides an external liquid cooling device of lithium ion power battery package and battery package of using thereof, its heat dissipation condition that can effectively improve the battery package gives off the heat of battery package timely reliably.
Furthermore, right the utility model discloses, through adopting external water-cooling board support frame, can support the water-cooling board, guarantee the radiating effect and the structural strength of water-cooling board, have the design advantage such as simple and convenient, the production and processing is simple, with low costs.
Drawings
Fig. 1 is an exploded view of the external liquid cooling device for a lithium ion power battery pack provided by the present invention and a battery pack;
fig. 2 is a schematic structural view of a water cooling plate in the external liquid cooling device for the lithium ion power battery pack provided by the present invention;
fig. 3 is a schematic structural view of a water-cooling plate support frame in an external liquid cooling device for a lithium ion power battery pack provided by the present invention;
fig. 4 is an overall assembly structure diagram of an external liquid cooling device for a lithium ion power battery pack provided by the present invention;
in the figure, 11 is a battery pack; 12 is a water cooling plate; 13 is a water cooling plate support frame; 14 is supporting foam; and 15 is a bottom guard plate.
Detailed Description
In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 4, the present invention provides an external liquid cooling device for a lithium ion power battery, which comprises a water cooling plate 12;
the water cooling plate 12 is in contact with the bottom surface of the battery pack 11 located outside;
the water cooling plate 12 is embedded on the upper part of the water cooling plate support frame 13 (specifically, a positioning pin can be used for positioning and fixing);
the water cooling plate support frame 13 is of a hollow frame structure, and a plurality of elastic support foam 14 are filled in the water cooling plate support frame;
the left end and the right end of the top of the water cooling plate support frame 13 are fixedly connected with the bottom of the external battery pack 11;
the bottom of the water cooling plate support frame 13 is fixedly connected with a bottom guard plate 15.
In the present invention, in a specific implementation, referring to fig. 2, the water-cooling plate 12 includes a hollow harmonica tube 23 distributed longitudinally;
the front end and the rear end of the harmonica tube 23 are respectively communicated with the hollow water chamber 22;
the water inlet pipe 21 and the water outlet pipe 25 are respectively arranged at the left end and the right end of the top of the front water chamber 22 (of course, the positions of the water inlet pipe and the water outlet pipe can be interchanged according to actual requirements).
It should be noted that, to the utility model discloses a water cooling system, inlet tube 21 and outlet pipe 25 correspond the liquid outlet and the inlet with an external cooling pump (like the water pump) and are linked together through hollow connecting tube respectively, it has the coolant liquid to pour into in advance in connecting tube and inlet tube 21 and the outlet pipe 25. The cooling liquid used in the water cooling system is a flame-retardant cooling liquid and can be a mixed solution of water and glycol. Wherein, the external cooling pump (such as a water pump) is used for providing circulating power for the cooling liquid in the water inlet pipe 21, the water outlet pipe 25, the connecting pipeline and the water cooling plate, thereby ensuring that the cooling liquid can flow in the circulating water channel consisting of the water inlet pipe 21 and the water outlet pipe 25, the hollow connecting pipeline and the water cooling plate and controlling the flow speed of the cooling liquid.
In concrete implementation, the left end and the right end of the rear water chamber 22 are respectively welded with a positioning block 24. The positioning block 24 may be, for example, an aluminum sheet with a thickness of 1mm, a circular hole is processed on the aluminum sheet at one end, and a waist hole is processed on the aluminum sheet at the other end for positioning with the water-cooling plate support frame 13.
The utility model discloses in, can adopt the pin location between water-cooling board 12 and the water-cooling board support frame 13, because of the too big external force can not be born to the harmonica tubular construction, and the moderate degree of harmonica pipe removes, does not influence the laminating area of water-cooling board and battery box bottom portion, does not have the influence to battery system's cooling effect, so the water-cooling board need extra fixed can.
It should be noted that the utility model discloses in, water-cooling plate 12 adopts the harmonica tubular construction, and inside increases the strengthening rib structure, can increase the structural strength of harmonica pipe, also can increase the flow resistance of system simultaneously, increases the heat transfer volume.
In the concrete implementation, the harmonica tubes are made of 3 series aluminum alloy, a four-inlet four-outlet pipeline arrangement mode is adopted, the specification of each harmonica tube is 48 x 5, the wall thickness is 0.5mm, rib structures are adopted in the harmonica tubes, and the strength and the pressure resistance of the harmonica tubes are improved. The front end and the rear end of the water cooling plate 12 are provided with water chambers 22 for cooling liquid shunting, the water chambers 22 are made of 3-series aluminum alloy, the side surfaces of the water chambers 22 are provided with flat holes and welded with harmonica tubes 23 through a brazing process, and the left end and the right end of each water chamber 22 are brazed through aluminum plates, so that the air tightness of the whole water channel is guaranteed.
It should be noted that, as shown in fig. 2, the liquid cooling plate is a harmonica tube structure, the harmonica tube 23 includes a plurality of co-directional runner tubes 230 (for example, eight), the runner tubes 230 are rectangular in cross section, and each runner tube is separated by a co-directional rib wall, so as to increase the pressure resistance of the water cooling plate. The side wall of the water chamber 22 shown in fig. 2 is formed with a kidney hole, and the runner pipe 230 and the water chamber 22 are fixedly inserted through a tool and are welded using a brazing process.
The utility model discloses in, the harmonica pipe includes eight runner pipes, wherein 4 branch roads of intaking and 4 play water branch roads, and the intraductal coolant liquid stream of runner is to being the U type, and the route complete symmetry of business turn over water, so the water-cooling board need not distinguish the inlet outlet in the in-service use yet, easy to assemble. In order to separate water inlet and water outlet, an aluminum sheet can be embedded and welded in the middle of the inside of the front water chamber.
The utility model discloses in, both ends trompil about the hydroecium 22 in the place ahead, inlet tube 21 and outlet pipe 25 adopt clearance fit to insert in trompil department, paint the scaling powder, adopt the welding of flame brazing technology together, and the orientation of hydroecium 22's delivery port is upwards in the picture, can also arrange the selection front and back and control the direction according to the water pipe of reality. The water inlet pipe 21 and the water outlet pipe 25 can adopt a quick-inserting type structure or a hoop type structure. The left end and the right end of the water chamber 22 are plugged by square stamping aluminum plates, and are brazed to ensure air tightness and prevent cooling liquid from flowing out.
It should be noted that, to the utility model discloses, the location structure at hydroecium 22 both ends adopts the aluminum sheet to braze, and the mode that round hole and waist hole combine compares with the locate mode of two round holes, can increase the convenience of installation when guaranteeing positioning accuracy.
It should be noted that, to the utility model discloses, the harmonica pipe and the hydroecium of water-cooling board use the brazed connection, can design according to the size customization of battery package.
In the concrete implementation, for the water-cooling plate, the water inlet pipe 21 and the water outlet pipe 25 are respectively connected with the water chamber by brazing, and the orientation of the water inlet pipe 21 and the orientation of the water outlet pipe 25 can be adjusted according to the environmental requirements.
In the present invention, in particular, referring to fig. 3, the water-cooled plate support frame 13 includes a middle beam 35 longitudinally distributed;
the left side and the right side of the middle beam 35 are respectively provided with a side longitudinal beam 33 which is distributed longitudinally at equal intervals;
the middle beam 35 and the side longitudinal beams 33 are welded and fixed together through a plurality of cross beams 34 distributed from front to back (not limited to the four cross beams shown in fig. 3);
a plurality of foam receiving openings 140 (not limited to the six shown in fig. 3) are formed in the water-cooling plate support frame 13;
each foam receiving opening 140 receives a piece of support foam 14.
In particular, the harmonica tubes 23 are located in the gaps between the center sill 35 and the side stringers 33.
In the concrete realization, on every side longeron 33, from the past back equidistant processing has three fixed through hole 32 for fix with the whole car of new energy automobile that is located the outside.
In the concrete implementation, a plurality of square notches are formed in the bottom of the side longitudinal beam 33, and a welding nut 31 is welded in each square notch and used for fixing the water cooling plate support frame and the battery pack (through a connecting bolt).
It should be noted that the utility model discloses in, water-cooling board support frame 13 adopts the panel beating to buckle the tailor-welding technology and processes, and average thickness is 2.5mm, and the major structure is the field font, specifically is three vertical four horizontal frame structures, can guarantee the supporting role to the battery package. Four elastic supporting foam 14 are filled in the middle of the square frame structure and used for providing continuous resilience for the water cooling plate, so that the contact between the water cooling plate and the battery pack is kept, and the heat dissipation effect of the liquid cooling device is ensured. In view of the adoption of the metal plate bending and tailor welding process, the processing mode has the advantages of lower cost and high processing speed, and is suitable for batch production and production.
The utility model discloses in, two side longerons 33 and centre sill 35 use the cold-rolled steel sheet of 2.5mm thickness to buckle, buckle and use argon arc welding to weld butt joint limit. The center beam 35 is provided with four slots, and the four middle beams 34 are welded to three longitudinal beams (i.e., two side longitudinal beams 33 and a longitudinally distributed center beam 35) through the bottom of the center beam by using a 2.0mm cold-rolled steel plate.
In concrete implementation, a stepped positioning pin 36 is welded to the rear portion of each side longitudinal beam 33 and used for installing and positioning a water cooling plate (corresponding to the round hole and the waist hole on the positioning block 24).
It should be noted that, for the water-cooling plate support frame 13, the three-vertical four-horizontal frame structure is formed by bending and welding cold-rolled steel plates, and the welding is performed by using gas shielded welding, so that the welding process is mature, and the strength of the support plate is high.
For the water-cooling plate support frame 13, a double-step positioning pin (namely a step-type positioning pin) for positioning with the water-cooling plate is arranged, the end with the small diameter is used for positioning with the water-cooling plate, and the end with the large diameter is welded on the side longitudinal beam 33 of the water-cooling plate support frame 13.
The utility model discloses in, on specifically realizing, support bubble cotton 14, after the water cooling system installation is accomplished, keep certain deflection, generally between 20% ~ 30% for the laminating degree of water-cooling board is guaranteed to the holding power that lasts for the water-cooling board provides.
In the concrete realization, the middle support bubble 14 of laying the CR material of water-cooling board support frame 13's frame construction, thickness 8 ~ 10mm can place six elasticity bubbles cotton for the water-cooling board provides the resilience force that lasts, keeps the contact of water-cooling board and battery package, guarantees the radiating effect of liquid cooling device. The CR foam is a general-purpose special rubber, and has excellent properties such as flame resistance, oil resistance, and chemical resistance, in addition to excellent physical properties of general rubbers.
The utility model discloses in, on specifically realizing, use the cold-rolled steel sheet guard plate (end backplate 15 promptly) outside at water-cooling board support frame 13, through four corners fix with screw on water-cooling board support frame 13, prevent that the battery package from installing the in-process of advancing the battery compartment, to supporting the scotch of bubble cotton and water-cooling board with collide with.
Based on the external liquid cooling device for the lithium ion power battery pack, which is shown in fig. 1 to 4, the utility model also provides a lithium ion power battery pack, which comprises the external liquid cooling device for the lithium ion power battery pack;
the lithium ion power battery pack is externally provided with a liquid cooling device and is fixedly arranged at the bottom of the battery pack 11.
To sum up, compare with prior art, the utility model provides a pair of external liquid cooling device of lithium ion power battery package and battery package of using thereof, its heat dissipation condition that can effectively improve the battery package distributes the heat of battery package timely reliably.
Furthermore, right the utility model discloses, through adopting external water-cooling board support frame, can support the water-cooling board, guarantee the radiating effect and the structural strength of water-cooling board, have the design advantage such as simple and convenient, the production and processing is simple, with low costs.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A lithium ion power battery comprises an external liquid cooling device, which is characterized by comprising a water cooling plate (12);
the water cooling plate (12) is in contact with the bottom surface of the battery pack (11) positioned outside;
the water cooling plate (12) is embedded on the upper part of the water cooling plate support frame (13);
the water cooling plate support frame (13) is of a hollow frame structure, and a plurality of elastic support foam (14) are filled in the water cooling plate support frame;
the left end and the right end of the top of the water cooling plate support frame (13) are fixedly connected with the bottom of an external battery pack (11);
the bottom of the water cooling plate support frame (13) is fixedly connected with a bottom guard plate (15).
2. The external liquid cooling device for the lithium ion power battery pack according to claim 1, wherein the water cooling plate (12) comprises longitudinally distributed, hollow harmonica tubes (23);
the front end and the rear end of the harmonica tube (23) are respectively communicated with the hollow water chamber (22);
the left end and the right end of the top of the water chamber (22) positioned in front are respectively provided with a water inlet pipe (21) and a water outlet pipe (25).
3. The external liquid cooling device for the lithium ion power battery pack according to claim 2, wherein a positioning block (24) is welded to each of the left and right ends of the rear water chamber (22).
4. The external liquid cooling device for the lithium ion power battery pack according to claim 1, wherein the water cooling plate support frame (13) comprises a middle beam (35) which is longitudinally distributed;
the left side and the right side of the middle beam (35) are respectively provided with a side longitudinal beam (33) which is distributed longitudinally at equal intervals;
the middle beam (35) and the side longitudinal beams (33) are welded and fixed together through a plurality of cross beams (34) distributed from front to back;
the water cooling plate support frame (13) is internally provided with a plurality of foam accommodating openings (140);
each foam receiving opening (140) for receiving a piece of support foam (14).
5. The external liquid cooling device for lithium ion power battery pack according to claim 4, wherein the harmonica tube (23) is located in a gap between the middle beam (35) and the side longitudinal beam (33).
6. The external liquid cooling device for lithium ion power battery pack according to claim 4,
three fixing through holes (32) are machined in each side longitudinal beam (33) at equal intervals from front to back;
and a stepped positioning pin (36) is welded at the rear part of each side longitudinal beam (33).
7. A lithium ion power battery pack, which is characterized by comprising the external liquid cooling device of the lithium ion power battery pack as claimed in any one of claims 1 to 6;
the external liquid cooling device of the lithium ion power battery pack is fixedly arranged at the bottom of the battery pack (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021032398.4U CN212257621U (en) | 2020-06-08 | 2020-06-08 | External liquid cooling device for lithium ion power battery pack and battery pack applying external liquid cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021032398.4U CN212257621U (en) | 2020-06-08 | 2020-06-08 | External liquid cooling device for lithium ion power battery pack and battery pack applying external liquid cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212257621U true CN212257621U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021032398.4U Active CN212257621U (en) | 2020-06-08 | 2020-06-08 | External liquid cooling device for lithium ion power battery pack and battery pack applying external liquid cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212257621U (en) |
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- 2020-06-08 CN CN202021032398.4U patent/CN212257621U/en active Active
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Effective date of registration: 20220216 Address after: 266500 Minshan Road, Huangdao District, Qingdao, Shandong Patentee after: LISHEN (QINGDAO) NEW ENERGY CO.,LTD. Address before: 300384 Tianjin Binhai New Area Binhai high tech Industrial Development Zone Huayuan science and Technology Park (outer ring) 38 Haitai South Road Patentee before: LISHEN POWER BATTERY SYSTEMS Co.,Ltd. |