CN215578876U - Quick-change liquid-cooled battery box for commercial vehicle - Google Patents
Quick-change liquid-cooled battery box for commercial vehicle Download PDFInfo
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- CN215578876U CN215578876U CN202121534501.XU CN202121534501U CN215578876U CN 215578876 U CN215578876 U CN 215578876U CN 202121534501 U CN202121534501 U CN 202121534501U CN 215578876 U CN215578876 U CN 215578876U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a quick-change liquid-cooled battery box for a commercial vehicle, which comprises: a box body; the battery pack is arranged in the box body and is provided with a built-in cooling pipe; the liquid cooling assembly is fixedly connected with the box body, and is used for cooling liquid to be pumped out; the liquid inlet pipe is communicated with the liquid outlet of the liquid cooling assembly and the liquid inlet of the cooling pipe; the liquid return pipe is communicated with a liquid outlet of the cooling pipe and a liquid inlet of the liquid cooling assembly; the expansion water tank is fixedly connected with the tank body and is provided with a liquid feeding port and a liquid outlet pipe; the drain pipe is a gravity drain pipe, and the expansion tank is higher than the cooling pipe and the liquid cooling assembly. The quick-change liquid-cooled battery box of the commercial vehicle is reasonable in structure, and the liquid-cooled component and the expansion water tank are fixedly connected with the box body, so that the liquid-cooled component and the expansion water tank can be subjected to power change transfer along with the box body; the expansion tank contains the expansion amount caused by the temperature rise of the cooling liquid, and the cooling liquid in the expansion tank is fed into the liquid cooling circulation in real time through gravity flow.
Description
Technical Field
The utility model relates to the technical field of battery replacing boxes, in particular to a quick-change type liquid-cooled battery box for a commercial vehicle.
Background
The power battery can generate a large amount of heat during charging and discharging, and the heat is dissipated in time, so that the performance and safety of a battery system and the whole vehicle are improved. The cooling of the power battery generally includes two kinds of liquid cooling and air cooling, and the liquid cooling device of the power battery box generally includes two kinds: the other type is that the bottom of the power battery box bracket is provided with a liquid cooling plate, and the power battery in a storage state is placed on the liquid cooling plate. How to make the liquid cooling system satisfy commercial car quick change requirement is one of the technical problem that technical staff needs to solve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a quick-change liquid-cooled battery box for a commercial vehicle.
In order to achieve the technical effects, the technical scheme of the utility model is as follows: the utility model provides a commercial car quick change formula liquid cooling battery box, includes:
a box body;
the battery pack is arranged in the box body and is provided with a built-in cooling pipe;
the liquid cooling assembly is fixedly connected with the box body, and is used for cooling liquid to be pumped out;
the liquid inlet pipe is communicated with the liquid outlet of the liquid cooling assembly and the liquid inlet of the cooling pipe;
the liquid return pipe is communicated with a liquid outlet of the cooling pipe and a liquid inlet of the liquid cooling assembly;
the expansion water tank is fixedly connected with the tank body and is provided with a liquid feeding port and a liquid outlet pipe;
the drain pipe is a gravity drain pipe, and the expansion tank is higher than the cooling pipe and the liquid cooling assembly.
The preferable technical scheme is that the liquid cooling assembly is lower than the cooling pipe.
The preferable technical scheme is that the liquid inlet pipe comprises a liquid inlet main pipe and a liquid inlet branch pipe which are communicated, and the liquid return pipe comprises a liquid return main pipe and a liquid return branch pipe which are communicated; at least two parallel branches are communicated between the liquid inlet main pipe and the liquid return main pipe;
the parallel branch comprises a liquid inlet branch pipe, at least two built-in cooling pipes of the battery packs and a liquid return branch pipe which are sequentially communicated, and a series pipe is communicated between the built-in cooling pipes of the battery packs.
The preferable technical scheme is that 2-3 built-in cooling pipes of the battery packs are communicated and arranged in each parallel branch.
The preferable technical scheme is that the liquid cooling assembly is arranged in the box body.
The preferable technical scheme is that the expansion water tank is arranged outside the tank body.
The preferred technical scheme is that the expansion water tank is arranged in the tank body, and the liquid adding opening is arranged outside the tank body wall or the tank body in an extending mode.
The preferable technical scheme is that the battery packs are arranged layer by layer from top to bottom, and at least two battery packs in the parallel branch are arranged in adjacent layers and are arranged oppositely from top to bottom.
The preferable technical scheme is that the liquid cooling assembly comprises a heat exchange tube, a circulating pump connected with the heat exchange tube and a refrigerating element exchanging heat with the heat exchange tube; one end of the heat exchange tube is a liquid inlet of the liquid cooling assembly, and the other end of the heat exchange tube is a liquid outlet of the liquid cooling assembly.
The preferable technical scheme is that the refrigerating element comprises a condensing fan, and the box body is provided with an air inlet opposite to the condensing fan.
The utility model has the advantages and beneficial effects that:
the quick-change liquid-cooled battery box of the commercial vehicle is reasonable in structure, and the liquid-cooled component and the expansion water tank are fixedly connected with the box body, so that the liquid-cooled component and the expansion water tank can be subjected to power change transfer along with the box body;
the expansion tank contains the expansion amount caused by the temperature rise of the cooling liquid, and the cooling liquid in the expansion tank is fed into the liquid cooling circulation in real time through gravity flow.
Drawings
FIG. 1 is a schematic perspective view of a quick-change liquid-cooled battery box of a commercial vehicle;
FIG. 2 is a schematic diagram of the internal structure of a quick-change liquid-cooled battery box of a commercial vehicle;
FIG. 3 is a schematic view of a liquid cooling assembly, an expansion tank and a battery pack;
FIG. 4 is a schematic diagram of a liquid cooling assembly;
in the figure: 1. a box body; 2. a support; 3. a battery pack; 4. a liquid cooling assembly; 41. a heat exchange pipe; 42. a circulation pump; 43. a refrigeration element; 431. a condensing fan; 5. a liquid inlet pipe; 51. a liquid inlet header pipe; 52. a liquid inlet branch pipe; 6. a liquid return pipe; 61. a liquid return header pipe; 62. a liquid return branch pipe; 7. an expansion tank; 8. a liquid outlet pipe; 9. a pipe is connected in series; 10. and an air inlet.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The utility model will be further explained with reference to the following schematic examples, which are shown in the accompanying drawings. Various advantages of the present invention will become more apparent from the following description. The shapes and dimensions of the various elements in the schematic drawings are illustrative only and are not to be construed as embodying the actual shapes, dimensions and absolute positions.
Liquid cooling subassembly and expansion tank
The liquid cooling assembly is fixedly connected with the box body, can be arranged in the box body or outside the box body, and is particularly detachably and fixedly connected; preferably, the liquid cooling assembly is arranged in the box body, so that the liquid inlet pipe and the liquid return pipe can be prevented from penetrating through the wall of the box body, and meanwhile, the outline of the battery box is kept in a cubic shape, so that the structure of the battery box is more compact.
The expansion water tank is fixedly connected with the tank body, can be arranged in the tank body or outside the tank body, and is particularly detachably and fixedly connected; preferably, the expansion water tank is arranged outside the tank body, namely the liquid filling port is arranged outside the tank body, so that a maintainer can directly fill the expansion water tank with the cooling liquid, the battery box does not need to be opened in the operation of filling the cooling liquid, and the safety of the operation of filling the cooling liquid is improved.
Height relation between expansion water tank and cooling pipe and liquid cooling assembly
On the basis that the drain pipe is the gravity drain pipe, the cooling tube is less than expansion tank, avoids the coolant liquid among the cooling tube to flow back to expansion tank in, and the liquid cooling subassembly is less than expansion tank, ensures that the coolant liquid in the expansion tank flows out to the liquid cooling subassembly along the drain pipe in, realizes real-time fluid infusion.
The liquid cooling subassembly is less than the cooling tube, and the liquid cooling subassembly sets up the below with the battery package promptly, can avoid the liquid cooling subassembly to leak the problem that influences the battery package.
Series connection of battery pack cooling pipes
The series connection of battery package cooling tube can reach the basic effect that reduces the series connection battery package to simplify the connecting line of a plurality of battery packages in liquid cooling subassembly and the battery box. Further, the number of the battery packs connected in series in each parallel branch is specifically determined according to the heat productivity of the battery packs and the flow rate of the cooling liquid. Generally, 2-3 battery packs are arranged in each parallel branch in a serial connection and communication mode, heat accumulation in the parallel branches is reduced, cooling time and temperature of the battery packs are effectively reduced, and service life of batteries is prolonged.
The liquid cooling component comprises a heat exchange tube and a refrigeration element which exchanges heat with the heat exchange tube, the refrigeration element comprises but is not limited to a condenser, a compressor and a condensing fan, and the equipment for realizing heat exchange comprises but is not limited to a plate heat exchanger, and can also be any one of the known heat exchangers which can be used for liquid cooling, such as a shell-and-tube heat exchanger, a regenerative heat exchanger and the like.
Further, the liquid cooling subassembly is battery heat management unit, and is concrete including the casing, and the inlet and the liquid outlet of liquid cooling subassembly set up on the casing, and heat exchange tube, circulating pump and refrigeration component are all integrated to be set up in the casing, and the detachable fixed connection of casing is in the box, and the heat exchange tube is connected with inlet and liquid outlet.
Examples
As shown in fig. 1-2, the quick-change liquid-cooled battery box for commercial vehicles comprises a box body 1, a bracket 2 is arranged in the box body 1, a battery pack 3 and a liquid-cooled component 4 are detachably and fixedly connected to the bracket 2, and a built-in cooling pipe (not shown in the figure) is arranged in the battery pack 3; a liquid inlet pipe 5 and a liquid return pipe 6 are also arranged in the box body 1, and the liquid inlet pipe 5 is communicated with a liquid outlet of the liquid cooling assembly 4 and a liquid inlet of the cooling pipe; the liquid return pipe 6 is communicated with a liquid outlet of the cooling pipe and a liquid inlet of the liquid cooling assembly 4; the expansion water tank 7 is fixedly connected with the tank body 1, and a liquid feeding port and a bottom liquid outlet pipe are arranged on the expansion water tank 7; the liquid outlet pipe 8 is a gravity liquid outlet pipe 8, and the expansion water tank 7 is arranged higher than the cooling pipe and the liquid cooling assembly 4; the liquid cooling assembly 4 cools the heated cooling liquid in the liquid return pipe 6 and the liquid supplement in the liquid outlet pipe 8, and pumps the cooled cooling liquid into the liquid inlet pipe 5.
As shown in fig. 2, in another embodiment, the liquid cooling module 4 is arranged below the cooling pipe, the support 2 has five layers, the liquid cooling module 4 is arranged on the support 2 at the bottom layer, and the battery packs 3 are 2 × 4 arranged on the support 2 at the upper four layers (two battery packs 3 are arranged on each support 2).
In another embodiment, as shown in fig. 3, the liquid inlet pipe 5 comprises a liquid inlet header pipe 51 and a liquid inlet branch pipe 52 which are communicated, and the liquid return pipe 6 comprises a liquid return header pipe 61 and a liquid return branch pipe 62 which are communicated; four parallel branches are communicated between the liquid inlet header pipe 51 and the liquid return header pipe 61; the parallel branch comprises a liquid inlet branch pipe 52, built-in cooling pipes of the two battery packs 3 and a liquid return branch pipe 62 which are sequentially communicated, and a series pipe 9 is communicated between the built-in cooling pipes of the two battery packs 3; battery package 3 is arranged from top to bottom layer by layer, and the series battery package 3 in the branch road that singly connects in parallel can set up in the same layer of support 2, perhaps is arranged in the different layers of support 2, and in the figure, two battery packages 3 in the branch road that connects in parallel set up in the adjacent layer and just to arranging from top to bottom, and four branch roads that connect in parallel are respectively: a1 and B1 are connected in series, C1 and D1 are connected in series, A2 and B2 are connected in series, and C2 and D2 are connected in series; each parallel branch is internally communicated with a built-in cooling pipe provided with two battery packs 3.
In another embodiment, as shown in fig. 2, the liquid cooling module 4 is disposed within the housing 1.
In another embodiment, as shown in fig. 1, the expansion tank 7 is arranged outside the tank 1, alternatively, the expansion tank 7 is arranged inside the tank 1, and the filling opening is arranged to extend from the wall of the tank 1 or outside the tank 1.
As shown in fig. 4, in another embodiment, the liquid cooling module 4 includes a heat exchange pipe 41 (provided with a plate heat exchanger), a circulation pump 42 connected to the heat exchange pipe 41, and a refrigeration component condenser and a compressor which exchange heat with the heat exchange pipe 41; one end of the heat exchange tube 41 is a liquid inlet of the liquid cooling module 4, and the other end is a liquid outlet of the liquid cooling module 4.
As shown in fig. 1 and 4, in another embodiment, the cooling member 43 includes a condensing fan 431, and the cabinet 1 is provided with an intake vent opposite to the condensing fan 431. In the figure, the air inlet 10 is arranged on the side wall of the box body 1, the air inlet 10 of the condensing fan 431 is horizontally opposite to the air inlet 10 of the box body 1, the structure can reduce the circulation path of inlet air, and the condensing fan 431 can smoothly absorb air, has small wind resistance and low noise.
Commercial car quick change formula liquid cooling battery box during operation:
s1, firstly, adding cooling liquid into the expansion water tank 7, emptying air in the liquid outlet pipe 8, the liquid cooling assembly 4, the liquid inlet pipe 5, the cooling pipe in the battery pack 3 and the liquid outlet pipe 8 to enable the communication pipeline to be filled with the cooling liquid, starting the liquid cooling assembly 4, and continuously operating the circulating pump 42 in the liquid cooling assembly 4;
s2: the cooling liquid circulates along the communication pipeline as follows: in the charging and discharging process, the battery pack 3 releases heat, the cooling liquid in the battery pack 3A1 exchanges heat with the battery modules, the temperature of the cooling liquid is increased, the temperature of the battery modules is reduced, the cooling liquid discharged from the battery pack 3A1 enters the series-connected B1, the temperature of the cooling liquid is further increased, and the temperature of the battery modules is reduced (the same as C1 and D1, A2 and B2, C2 and D2);
s3: the cooling liquid discharged from the B1 enters the liquid cooling assembly 4 through the liquid return pipe 6, is subjected to heat exchange treatment, is cooled, enters the battery pack 3 again through the liquid inlet pipe 5, and the step S2 is repeated;
in the above cycles S2 and S3, the expansion tank 7 accommodates the amount of expansion caused by the temperature rise of the coolant, and replenishes the coolant in the cooling cycle in real time.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a commercial car quick change formula liquid cooling battery box, includes:
a box body;
the battery pack is arranged in the box body and is provided with a built-in cooling pipe;
the liquid cooling assembly is fixedly connected with the box body, and is used for cooling liquid to be pumped out;
the liquid inlet pipe is communicated with the liquid outlet of the liquid cooling assembly and the liquid inlet of the cooling pipe;
the liquid return pipe is communicated with a liquid outlet of the cooling pipe and a liquid inlet of the liquid cooling assembly;
the expansion water tank is fixedly connected with the tank body and is provided with a liquid feeding port and a liquid outlet pipe;
the expansion tank is characterized in that the liquid outlet pipe is a gravity liquid outlet pipe, and the expansion tank is higher than the cooling pipe and the liquid cooling assembly.
2. The quick-change liquid-cooled battery box for commercial vehicles according to claim 1, wherein the liquid-cooled assembly is disposed below the cooling tube.
3. The quick-change liquid-cooled battery box for commercial vehicles according to claim 1, wherein the liquid inlet pipe comprises a liquid inlet main pipe and a liquid inlet branch pipe which are communicated, and the liquid return pipe comprises a liquid return main pipe and a liquid return branch pipe which are communicated; at least two parallel branches are communicated between the liquid inlet main pipe and the liquid return main pipe;
the parallel branch comprises a liquid inlet branch pipe, at least two built-in cooling pipes of the battery packs and a liquid return branch pipe which are sequentially communicated, and a series pipe is communicated between the built-in cooling pipes of the battery packs.
4. The quick-change liquid-cooled battery box for commercial vehicles according to claim 3, wherein 2-3 built-in cooling pipes of the battery pack are communicated with each parallel branch.
5. The quick-change liquid-cooled battery box for a commercial vehicle of claim 3, wherein the liquid-cooled component is disposed in the box body.
6. The quick-change liquid-cooled battery box for commercial vehicles according to claim 1, wherein the expansion tank is disposed outside the box body.
7. The quick-change liquid-cooled battery box for commercial vehicles according to claim 1, wherein the expansion tank is disposed in the box body, and the filling opening is extended and disposed outside the box body wall or the box body.
8. The quick-change liquid-cooled battery box for commercial vehicles according to claim 4, wherein the battery packs are arranged layer by layer, and at least two battery packs in the parallel branches are arranged in adjacent layers and are arranged opposite to each other.
9. The quick-change liquid-cooled battery box for commercial vehicles according to claim 1, wherein the liquid-cooled assembly comprises a heat exchange tube, a circulation pump connected to the heat exchange tube, and a refrigeration element in heat exchange with the heat exchange tube; one end of the heat exchange tube is a liquid inlet of the liquid cooling assembly, and the other end of the heat exchange tube is a liquid outlet of the liquid cooling assembly.
10. The quick-change liquid-cooled battery box for commercial vehicles according to claim 9, wherein the cooling element comprises a condensing fan, and the box body is provided with an air inlet opposite to the condensing fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121534501.XU CN215578876U (en) | 2021-07-07 | 2021-07-07 | Quick-change liquid-cooled battery box for commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121534501.XU CN215578876U (en) | 2021-07-07 | 2021-07-07 | Quick-change liquid-cooled battery box for commercial vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN215578876U true CN215578876U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121534501.XU Active CN215578876U (en) | 2021-07-07 | 2021-07-07 | Quick-change liquid-cooled battery box for commercial vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024007508A1 (en) * | 2022-07-06 | 2024-01-11 | 上海西井科技股份有限公司 | Battery pack for container truck battery swapping and battery swapping method therefor |
-
2021
- 2021-07-07 CN CN202121534501.XU patent/CN215578876U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024007508A1 (en) * | 2022-07-06 | 2024-01-11 | 上海西井科技股份有限公司 | Battery pack for container truck battery swapping and battery swapping method therefor |
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