CN111755769A - Battery cooling system and car - Google Patents
Battery cooling system and car Download PDFInfo
- Publication number
- CN111755769A CN111755769A CN201910237967.4A CN201910237967A CN111755769A CN 111755769 A CN111755769 A CN 111755769A CN 201910237967 A CN201910237967 A CN 201910237967A CN 111755769 A CN111755769 A CN 111755769A
- Authority
- CN
- China
- Prior art keywords
- water tank
- auxiliary water
- cooling system
- battery
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/04—Partitions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a battery cooling system and an automobile, wherein the battery cooling system comprises: the system comprises a power battery, an auxiliary water tank, a pump and a battery cooler; the outlet of the power battery cooling water path is connected with the inlet of the auxiliary water tank; the outlet of the auxiliary water tank is connected with the pump; the pump is connected with an inlet of the battery cooler; and the outlet of the battery cooler is connected with the inlet of the power battery cooling water path. The embodiment of the invention solves the problems that the auxiliary water tank is connected in parallel in the battery cooling system at present, so that air turbidity is easily generated and the space is occupied.
Description
Technical Field
The invention relates to the technical field of battery cooling, in particular to a battery cooling system and an automobile.
Background
The automobile auxiliary water tank is a component of a motor and battery cooling system and mainly has the following functions: when the temperature of the motor and the battery is high, the liquid expands, a part of anti-freezing liquid flows into the auxiliary water tank through the cover of the water tank, and gas generated in the cooling system is exhausted through the auxiliary water tank; when the temperature is reduced and the pressure of the cooling system is negative, the system sucks the anti-freezing liquid of the auxiliary water tank into the cooling system through the water tank cover, so that the cooling liquid is supplemented, and the function of balancing the pressure of the water tank is achieved.
The auxiliary water tank structure used in the battery and motor cooling system of the conventional electric automobile is mostly connected in parallel in the cooling system, and the requirement of complete gas removal can be guaranteed only by setting the auxiliary water tank structure at the physical highest point of the cooling system, so that the cavitation phenomenon is avoided.
Disclosure of Invention
In order to solve the technical problems, the invention provides a battery cooling system and an automobile, and solves the problems that an auxiliary water tank is connected in parallel in a motor and the battery cooling system at present, air turbidity is easy to generate, and the space is occupied.
According to an aspect of the present invention, there is provided a battery cooling system including: the system comprises a power battery, an auxiliary water tank, a pump and a battery cooler;
the outlet of the power battery cooling water path is connected with the inlet of the auxiliary water tank;
the outlet of the auxiliary water tank is connected with the pump;
the pump is connected with an inlet of the battery cooler;
and the outlet of the battery cooler is connected with the inlet of the power battery cooling water path.
Optionally, a partition plate is arranged between the inlet of the auxiliary water tank and the outlet of the auxiliary water tank;
and the partition plate is provided with water through holes.
Optionally, the level of the inlet of the auxiliary water tank is higher than the level of the outlet of the auxiliary water tank;
the partition plate divides the auxiliary water tank into a first chamber, a second chamber and a third chamber which are communicated in sequence; the first chamber is positioned above the second chamber and the third chamber;
the first cavity comprises an arc-shaped inner wall corresponding to the inlet of the auxiliary water tank, the cooling liquid enters the first cavity from the inlet of the auxiliary water tank, flows through the arc-shaped ascending surface and the arc-shaped descending surface of the arc-shaped inner wall successively and then enters the second cavity, and then passes through the third cavity and flows out from the outlet of the auxiliary water tank.
Optionally, the auxiliary water tank is connected with the vehicle body through a mounting bracket.
Optionally, a clamping groove is formed in the outer wall of the auxiliary water tank;
the mounting bracket is provided with a clamping bulge;
the clamping groove is connected with the clamping protrusion in an interference mode.
Optionally, the clamping groove is shaped like a Chinese character 'ji'.
Optionally, the outer wall of the auxiliary water tank is further provided with at least one positioning groove.
Optionally, the positioning groove is a long circular groove.
Optionally, the pump is a water pump.
According to another aspect of the present invention, there is provided an automobile including the battery cooling system.
The embodiment of the invention has the beneficial effects that:
the invention provides a battery cooling system and an automobile, wherein the battery cooling system comprises a power battery, an auxiliary water tank, a pump and a battery cooler which are sequentially connected in series, a partition plate is arranged in the auxiliary water tank, gas in the battery cooling system can flow along with the flow of cooling liquid, liquid-gas separation is carried out after the gas reaches the auxiliary water tank, the gas is discharged, the gas turbidity phenomenon can be effectively prevented, and the problems that the auxiliary water tank is connected in parallel in a motor and a battery cooling system at present, the gas turbidity is easy to generate, and the space is occupied are solved. The partition plate provided in the sub-tank can prevent air from becoming turbid as described above, and can reduce noise caused by the flow of the coolant.
Drawings
Fig. 1 is a schematic structural view showing a battery cooling system according to an embodiment of the present invention;
FIG. 2 is a view illustrating one of the construction views of the auxiliary water tank according to the embodiment of the present invention;
FIG. 3 is a second schematic view of the auxiliary water tank according to the embodiment of the present invention;
FIG. 4 is a view showing one of the inner structures of the subtank according to the embodiment of the present invention;
FIG. 5 is a second schematic view showing the internal structure of the auxiliary water tank according to the embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a locking groove and a positioning groove according to an embodiment of the present invention;
fig. 7 is a second schematic structural view illustrating the engaging groove and the positioning groove according to the embodiment of the invention.
[ description of reference ]
1-a power battery; 2-auxiliary water tank; 3, a pump; 4-battery cooler; 21 — a first chamber; 22 — a second chamber; 23 — a third chamber; 211-an arc-shaped inner wall; 24-a clamping groove; 25-positioning groove.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a battery cooling system including: the system comprises a power battery 1, an auxiliary water tank 2, a pump 3 and a battery cooler 4;
the outlet of the cooling water channel of the power battery 1 is connected with the inlet of the auxiliary water tank 2;
the outlet of the auxiliary water tank 2 is connected with the pump 3;
the pump 3 is connected to an inlet of the battery cooler 4;
the outlet of the battery cooler 4 is connected with the inlet of the cooling water channel of the power battery 1.
Specifically, the pump 3 is a water pump.
In this embodiment, power battery 1, expansion tank 2, pump 3 and battery cooler 4 are series connection in proper order, and expansion tank 2 connects in series into cooling system, and the coolant liquid is pumped from expansion tank 2 by pump 3, and pump to battery cooler (giller) 4, and battery cooler 4 and external world carry out the heat transfer, and the coolant liquid after being cooled gets into power battery 1, and after the abundant heat transfer of inside water-cooling board of battery, the coolant liquid that becomes hot returns expansion tank 2, and is so repeated, with power battery 1's heat source constantly through battery cooler 4 effluvium.
In this embodiment, the auxiliary water tank 2 is connected in series to the cooling system, and provides an expansion space for the entire battery cooling system. Wherein, the bubble flows along with the flow of the cooling liquid, and after reaching the auxiliary water tank 2, the liquid-gas separation occurs, and the gas is brought out, thereby effectively preventing the formation of cavitation. In addition, air accumulated in the cooling liquid and water vapor generated at high temperature of the battery are removed in time, so that the heat dissipation function of the radiator can be more effectively utilized, and the cooling efficiency is improved.
In this embodiment, the structure of the auxiliary water tank 2 is as shown in fig. 2 and 3, and includes an inlet and an outlet, wherein the inlet is located above the outlet, so as to effectively ensure the timely discharge of the cooling liquid.
Further, as shown in fig. 4, a partition is provided between an inlet of the auxiliary water tank 2 and an outlet of the auxiliary water tank 2;
and the partition plate is provided with water through holes.
Specifically, the level of the inlet of the auxiliary water tank 2 is higher than that of the outlet of the auxiliary water tank 2;
the partition plate divides the auxiliary water tank 2 into a first chamber 21, a second chamber 22 and a third chamber 23 which are communicated in sequence; the first chamber 21 is located above the second chamber 22 and the third chamber 23;
the first chamber 21 comprises an arc-shaped inner wall 211 which corresponds to an inlet of the auxiliary water tank 2, the cooling liquid enters the first chamber 21 from the inlet of the auxiliary water tank 2, flows through an arc-shaped ascending surface and an arc-shaped descending surface of the arc-shaped inner wall 211 successively and then enters the second chamber 22, and then flows out from an outlet of the auxiliary water tank 2 through the third chamber 23.
In this embodiment, the flow direction of the cooling liquid is shown by the arrow in fig. 4, the cooling liquid flows into the first chamber 21 from the inlet, collides with the ascending surface of the arc-shaped inner wall 211, then flows down along the descending surface of the arc-shaped inner wall 211, enters the second chamber 22 through the water passing holes between the first chamber 21 and the second chamber 22, finally enters the third chamber 23 through the water passing holes between the second chamber 22 and the third chamber 23, and flows out from the outlet. As shown in fig. 5, the water passing holes between the first chamber 21 and the second chamber 22 and the water passing holes between the second chamber 22 and the third chamber 23 are all long round holes, each of the long round holes is a waist-shaped through hole, and both ends of each of the long round holes are semicircular.
In this embodiment, bubbles in the cooling liquid hit the arc-shaped inner wall 211 and are crushed, so that cavitation can be effectively prevented. Meanwhile, the water inlet and the water outlet are separated by the partition plate, so that the stability of the cooling liquid level can be guaranteed no matter what posture of the vehicle body is, and the phenomenon of surging is prevented. In addition, the partition plate can also prevent the cooling liquid from generating 'swooshing' when returning to the auxiliary water tank 2, the cooling liquid hits the arc-shaped inner wall 211 and then flows down along the arc-shaped plate 211, and does not directly hit the inner wall surface of the auxiliary water tank 2, the sound is small, and therefore a better experience of Noise, Vibration and Harshness (NVH) of the electric vehicle can be achieved.
Preferably, the auxiliary water tank 2 is connected with the vehicle body through a mounting bracket.
Specifically, as shown in fig. 6 and 7, a clamping groove 24 is formed in the outer wall of the auxiliary water tank 2;
the mounting bracket is provided with a clamping bulge;
the clamping groove 24 is in interference connection with the clamping protrusion.
Wherein, the clamping groove 24 is shaped like a Chinese character ji.
In addition, as shown in fig. 6 and 7, at least one positioning groove 25 is further provided on the outer wall of the sub-tank 2.
In this embodiment, the quantity of constant head tank 25 is at least one, can be two, and the setting of a plurality of constant head tanks 25 can be more accurate right the installing support is fixed a position to effectively guarantee expansion tank 2 with the relative position of installing support.
Wherein, the positioning groove 25 is a long circular groove.
In this embodiment, as shown in fig. 6, the long circular groove is a kidney-shaped blind hole, and both ends of the long circular groove are semicircular.
In this embodiment, expansion tank 2 passes through installing support and body connection, expansion tank 2 with the installing support adopts the connected mode of interference joint, the joint arch of installing support inserts in expansion tank 2's joint groove 24, joint groove 24 is "nearly" font. The installing support with the connection of expansion tank 2 is the interference connection, and boundary interference joint can guarantee that expansion tank installs and does not rock, simple to operate need not set up the mounting hole spiro union in addition, labour saving and time saving practices thrift the cost. The arrangement of the two positioning grooves 25 at the lower part is matched with the two positioning bulges of the bracket, so that relative position positioning is provided for the auxiliary water tank 2 and the mounting bracket.
The embodiment of the invention also provides an automobile comprising the battery cooling system.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
1. A battery cooling system, comprising: the system comprises a power battery (1), an auxiliary water tank (2), a pump (3) and a battery cooler (4);
the outlet of the cooling water channel of the power battery (1) is connected with the inlet of the auxiliary water tank (2);
the outlet of the auxiliary water tank (2) is connected with the pump (3);
the pump (3) is connected to the inlet of the battery cooler (4);
and the outlet of the battery cooler (4) is connected with the inlet of the cooling water channel of the power battery (1).
2. The battery cooling system according to claim 1,
a partition plate is arranged between the inlet of the auxiliary water tank (2) and the outlet of the auxiliary water tank (2);
and the partition plate is provided with water through holes.
3. The battery cooling system according to claim 2,
the level of the inlet of the auxiliary water tank (2) is higher than that of the outlet of the auxiliary water tank (2);
the partition plate divides the auxiliary water tank (2) into a first chamber (21), a second chamber (22) and a third chamber (23) which are communicated in sequence; the first chamber (21) is located above the second chamber (22) and the third chamber (23);
the first cavity (21) comprises an arc-shaped inner wall (211) corresponding to an inlet of the auxiliary water tank (2), the cooling liquid enters the first cavity (21) through the inlet of the auxiliary water tank (2), flows through the arc-shaped ascending surface and the arc-shaped descending surface of the arc-shaped inner wall (211) successively and then enters the second cavity (22), and further passes through the third cavity (23) to flow out from an outlet of the auxiliary water tank (2).
4. The battery cooling system according to claim 1, wherein the subtank (2) is connected to a vehicle body through a mounting bracket.
5. The battery cooling system according to claim 4,
the outer wall of the auxiliary water tank (2) is provided with a clamping groove (24);
the mounting bracket is provided with a clamping bulge;
the clamping groove (24) is in interference connection with the clamping protrusion.
6. The battery cooling system according to claim 5, wherein the catching groove (24) has a zigzag shape.
7. Battery cooling system according to claim 5, characterised in that the outer wall of the secondary water tank (2) is also provided with at least one positioning groove (25).
8. The battery cooling system according to claim 7, wherein the positioning groove (25) is an oblong groove.
9. The battery cooling system according to claim 1, wherein the pump (3) is a water pump.
10. An automobile characterized by comprising the battery cooling system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237967.4A CN111755769A (en) | 2019-03-27 | 2019-03-27 | Battery cooling system and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237967.4A CN111755769A (en) | 2019-03-27 | 2019-03-27 | Battery cooling system and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111755769A true CN111755769A (en) | 2020-10-09 |
Family
ID=72671475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910237967.4A Pending CN111755769A (en) | 2019-03-27 | 2019-03-27 | Battery cooling system and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111755769A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070051593A (en) * | 2005-11-15 | 2007-05-18 | 두산인프라코어 주식회사 | Coolant Auxiliary Tank |
| CN201092881Y (en) * | 2007-10-29 | 2008-07-30 | 上汽通用五菱汽车股份有限公司 | Expansion tank for cars |
| US20090159019A1 (en) * | 2007-12-20 | 2009-06-25 | Ford Global Technologies, Llc | Cooling system expansion tank |
| CN102743899A (en) * | 2012-07-13 | 2012-10-24 | 郑州宇通客车股份有限公司 | Bubble separating bowl and an expansion tank using same |
| CN202692803U (en) * | 2012-07-27 | 2013-01-23 | 南京依维柯汽车有限公司 | Auxiliary water tank assembly of automobile radiator |
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| CN205382980U (en) * | 2015-12-24 | 2016-07-13 | 上海联谊汽车拖拉机工贸有限公司 | Car retaining bottle |
| CN206530395U (en) * | 2016-12-22 | 2017-09-29 | 柯美汽车零部件（上海）有限公司 | A kind of expansion tank for power battery cooling system for electronic vehicle |
| CN206555009U (en) * | 2017-03-24 | 2017-10-13 | 江西凯马百路佳客车有限公司 | With the expansion tank for removing bubble function in cooling system |
| CN107505805A (en) * | 2017-09-19 | 2017-12-22 | 青岛海信电器股份有限公司 | A kind of water tank, water-cooling heat radiating system and projector |
| CN207093193U (en) * | 2017-07-31 | 2018-03-13 | 武汉比亚迪汽车有限公司 | A kind of deputy tank, tandem cooling system and vehicle |
| CN208330529U (en) * | 2018-06-26 | 2019-01-04 | 象山博宇汽车模塑制造有限公司 | A kind of layer-stepping deputy tank |
| CN109301386A (en) * | 2018-09-29 | 2019-02-01 | 安徽江淮汽车集团股份有限公司 | A kind of heating and cooling system of automobile power cell |
| CN109404297A (en) * | 2019-01-05 | 2019-03-01 | 陈晨 | One kind exempting from the low cavitation erosion centrifugal pump of liquid filling |
-
2019
- 2019-03-27 CN CN201910237967.4A patent/CN111755769A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070051593A (en) * | 2005-11-15 | 2007-05-18 | 두산인프라코어 주식회사 | Coolant Auxiliary Tank |
| CN201092881Y (en) * | 2007-10-29 | 2008-07-30 | 上汽通用五菱汽车股份有限公司 | Expansion tank for cars |
| US20090159019A1 (en) * | 2007-12-20 | 2009-06-25 | Ford Global Technologies, Llc | Cooling system expansion tank |
| CN102743899A (en) * | 2012-07-13 | 2012-10-24 | 郑州宇通客车股份有限公司 | Bubble separating bowl and an expansion tank using same |
| CN202692803U (en) * | 2012-07-27 | 2013-01-23 | 南京依维柯汽车有限公司 | Auxiliary water tank assembly of automobile radiator |
| CN104632351A (en) * | 2013-11-06 | 2015-05-20 | 北汽福田汽车股份有限公司 | Chamber structure for separating liquid and air, auxiliary water tank and engine cooling system |
| CN205382980U (en) * | 2015-12-24 | 2016-07-13 | 上海联谊汽车拖拉机工贸有限公司 | Car retaining bottle |
| CN206530395U (en) * | 2016-12-22 | 2017-09-29 | 柯美汽车零部件（上海）有限公司 | A kind of expansion tank for power battery cooling system for electronic vehicle |
| CN206555009U (en) * | 2017-03-24 | 2017-10-13 | 江西凯马百路佳客车有限公司 | With the expansion tank for removing bubble function in cooling system |
| CN207093193U (en) * | 2017-07-31 | 2018-03-13 | 武汉比亚迪汽车有限公司 | A kind of deputy tank, tandem cooling system and vehicle |
| CN107505805A (en) * | 2017-09-19 | 2017-12-22 | 青岛海信电器股份有限公司 | A kind of water tank, water-cooling heat radiating system and projector |
| CN208330529U (en) * | 2018-06-26 | 2019-01-04 | 象山博宇汽车模塑制造有限公司 | A kind of layer-stepping deputy tank |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201009 |
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| RJ01 | Rejection of invention patent application after publication |