CN216250877U - Battery module liquid cooling board and mounting structure thereof - Google Patents
Battery module liquid cooling board and mounting structure thereof Download PDFInfo
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- CN216250877U CN216250877U CN202122297587.5U CN202122297587U CN216250877U CN 216250877 U CN216250877 U CN 216250877U CN 202122297587 U CN202122297587 U CN 202122297587U CN 216250877 U CN216250877 U CN 216250877U
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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 invention discloses a battery module liquid cooling plate which comprises a water inlet and a water outlet and is characterized by further comprising an even number of groups of liquid cooling plates, wherein each group of liquid cooling plates comprises an upper liquid cooling plate and a lower liquid cooling plate. In the technical scheme, all the liquid cooling plates do not need to be connected in parallel for a plurality of liquid cooling plates of an upper layer and a lower layer of structure, only one upper liquid cooling plate and one lower liquid cooling plate need to be connected in parallel, then the remaining upper liquid cooling plate and the lower liquid cooling plate are connected in series in a crossed manner, so that the number of the upper liquid cooling plate and the lower liquid cooling plate in two parallel circuits is the same, the flow channels and the pressure drop of the two parallel circuits are ensured to be the same, the flow of the whole structure is uniform, and the purpose of uniform heat dissipation is achieved.
Description
Technical Field
The invention relates to the field of liquid cooling plates, in particular to a battery module liquid cooling plate and an installation structure thereof.
Background
Compared with the traditional fuel vehicle, a hybrid electric vehicle (PHEV) has the advantages of long driving range, low fuel consumption and the like, and is more and more favored by consumers. The power supply system as a key component is mainly placed on a spare wheel basin or a back of a rear seat of a vehicle body. For example, a liquid-cooled battery pack disclosed in chinese patent document, which is published under the publication number CN208753472U, includes a battery case, heat insulation cotton, a battery module assembly, a heat conductive silicone pad, and a liquid-cooled component, wherein the liquid-cooled component is composed of a liquid-cooled plate, a water pipe, and a quick plug-in unit.
At present, along with the promotion of battery specific energy, the spare tyre is important part again, this region of back seat back can be used to most whole car factories and places electrical power generating system, just form a high thin box, need the battery module two-layer to arrange, because the restriction of automobile body space, it is narrow above leading to battery box below wide, it places more modules than above to lead to following needs, so the liquid cooling board that leads to the battery package the inside upper and lower floor is different, arrange to this kind of liquid cooling board, what adopt now mostly is the liquid cooling system with each liquid cooling board parallelly connected, this kind of liquid cooling system has the following problem:
1. the upper layer and the lower layer of the liquid cooling plate asymmetric structure adopt a liquid cooling system which connects all the liquid cooling plates in parallel, and the flow distribution is uneven
To this kind of asymmetric structure of upper and lower liquid cooling plate, adopt the parallelly connected liquid cooling system of each liquid cooling plate, because upper and lower layer liquid cooling plate asymmetric structure, the pressure drop of upper and lower layer liquid cooling plate is different, leads to the flow distribution of upper and lower layer liquid cooling plate inhomogeneous to the radiating effect of liquid cooling plate to the module is inconsistent, leads to the difference in temperature between the module great, and the difference in temperature between the mould great can cause the life-span of battery package to shorten.
2. The liquid cooling system with the liquid cooling plates connected in parallel has the advantages of complex pipeline structure, high cost and high space occupation rate
The liquid cooling system with the liquid cooling plates connected in parallel needs a plurality of pipelines, and if the pipelines form blocking, a bypass pipeline needs to be designed, so that the pipeline is complex, the manufacturing cost is high, the space occupancy is high, the available space of other parts in the battery pack can be influenced, the internal structure of the battery pack is compact, the clearance between the parts is too small, and the battery pack is difficult to install.
3. The liquid cooling plate for friction stir welding has complex manufacturing process, high cost, heavy weight and large flow resistance
The liquid cooling plate of friction stir welding is that the runner is processed out through machining after aluminium extrusion moulding, then become the liquid cooling plate through friction stir welding, this kind of manufacturing process is comparatively complicated, the cost of the liquid cooling plate of producing is higher, the weight of liquid cooling plate is heavier, and friction stir welding's liquid cooling plate is because the technology restriction, the runner of liquid cooling plate must be the formal runner in side, the liquid cooling plate runner flow resistance that causes friction stir welding like this is great, thereby lead to the increase of system flow resistance, the heat transfer effect variation.
Disclosure of Invention
The invention provides a liquid cooling plate of a battery module and an installation structure thereof, aiming at overcoming the problems in the prior art. The cooling and temperature equalizing effect is better, the cost is lower, and the weight is lighter.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a battery module liquid cooling board, includes water inlet and delivery port, characterized by still includes: liquid cold drawing is organized to the even number, liquid cold drawing is organized respectively for the 1 st group liquid cold drawing, the 2 nd group liquid cold drawing … … kth group liquid cold drawing, the kth +1 group liquid cold drawing … … 2n-1 group liquid cold drawing and the 2n group liquid cold drawing in every group liquid cold drawing, including liquid cold drawing and lower liquid cold drawing in every group liquid cold drawing, be provided with liquid cold drawing water inlet and liquid cold drawing delivery port on every liquid cold drawing, the liquid cold drawing water inlet of last liquid cold drawing in the first group liquid cold drawing of water inlet intercommunication respectively and the liquid cold drawing water inlet of lower liquid cold drawing, the connected mode between every group liquid cold drawing is: a liquid cooling plate water outlet of an upper liquid cooling plate of the kth group of liquid cooling plates is connected with a liquid cooling plate water inlet of a lower liquid cooling plate of the kth +1 group of liquid cooling plates; a liquid cooling plate water outlet of a lower liquid cooling plate of the kth group of liquid cooling plates is connected with a liquid cooling plate water inlet of an upper liquid cooling plate of the kth +1 group of liquid cooling plates, and the water outlet is connected with a liquid cooling plate water outlet of an upper liquid cooling plate in the 2n group of liquid cooling plates and a liquid cooling plate water outlet of the lower liquid cooling plate; the water pipe joint comprises a liquid cooling plate interface and a water outlet pipeline perpendicular to the liquid cooling plate interface, and the liquid cooling plate interface is connected with a water inlet or a water outlet.
In the technical scheme, all the liquid cooling plates do not need to be connected in parallel for a plurality of liquid cooling plates of an upper layer and a lower layer of structure, only one upper liquid cooling plate and one lower liquid cooling plate need to be connected in parallel, then the remaining upper liquid cooling plate and the lower liquid cooling plate are connected in series in a crossed manner, so that the number of the upper liquid cooling plate and the lower liquid cooling plate in two parallel circuits is the same, the flow channels and the pressure drop of the two parallel circuits are ensured to be the same, the flow of the whole structure is uniform, and the purpose of uniform heat dissipation is achieved.
Preferably, the even number of the liquid cooling plates is two, and the lower liquid cooling plate is wider than the upper liquid cooling plate.
At present, along with the promotion of battery specific energy, the spare tyre is important part again, this region of back seat back can be used to most whole car factories and places electrical power generating system, just form a high thin box promptly, need battery module two-layer to arrange, because the restriction of automobile body space, it is narrow above leading to battery box lower face width, it places more modules than above to lead to following needs, so the liquid cooling plate that leads to the battery package inside upper and lower floor is different, this structure is according to the regional size adjustment's of back seat back upper and lower liquid cold drawing's of vehicle number and shape.
As preferred, water pipe joint quantity is two, is first water pipe joint and second water pipe joint respectively, first water pipe joint connects the water inlet, and second water pipe joint connects the delivery port every year.
The application still provides a mounting structure of battery module liquid cooling board, including any battery module liquid cooling board of the aforesaid, still include the battery module, the liquid cooling board includes flat panel spare and runner plate, flat panel spare outline is bigger than runner plate outline, be provided with the runner on the runner plate, the runner is that the runner plate obtains through the punching press, the runner plate with flat panel spare welded fastening, flat panel spare is provided with the mounting hole in the non-runner part that surpasss the runner plate, the battery module is provided with the mounting hole on corresponding the position, and the screw passes the mounting hole of battery module with the mounting hole of liquid cooling board passes through the nut and makes battery module and liquid cooling board fixed.
The runner is punched, the runner is designed more freely, the designed runner pressure is reduced, and the heat exchange effect is better. When the liquid cooling plate is installed, the flow channel is exposed downwards, and in order to prevent the flow channel from being deformed due to extrusion of hard objects, foam and the like can be placed at the bottom of the liquid cooling plate.
Preferably, the mounting bracket is mounted below the liquid cooling plate, a boss is arranged on the mounting bracket, the height of the boss is larger than the thickness of the flow channel plate, the position of the boss corresponds to the position of the mounting hole in the liquid cooling plate, the mounting hole is formed in the boss, and a screw penetrates through the mounting hole of the battery module, the mounting hole of the liquid cooling plate and the mounting hole of the boss to enable the battery module, the liquid cooling plate and the mounting bracket to be fixed through nuts.
The boss is used for suspending the punched runner plate, so that the runner plate is protected from being extruded and collided, and the deformation of the runner plate is prevented.
Preferably, a hollow area is arranged on the mounting bracket.
The hollow area on the mounting bracket can increase the heat dissipation effect.
Preferably, the edge of the mounting bracket is provided with a flanging structure.
The flanging structure of the mounting bracket can increase the strength of the mounting bracket.
Therefore, the invention has the following beneficial effects: (1) the invention adopts a liquid cooling system structure with two branches connected in parallel, so that the flow distribution of the large and small liquid cooling plates is more uniform, and the temperature difference between the modules is reduced; (2) the liquid cooling system has the advantages that the number of pipelines of the liquid cooling pipe of the liquid cooling system with two parallel branches is less, the space occupancy rate in the battery pack is lower, and the cost of the liquid cooling pipeline is lower; (3) the structure of the mounting bracket can effectively protect the flow channel from being extruded and collided, and simultaneously, the strength of the mounting structure is enhanced.
Drawings
Fig. 1 is a schematic structural view of a liquid-cooled plate of a battery module according to the present invention.
FIG. 2 is a schematic view of a liquid cold plate according to the present invention.
FIG. 3 is a schematic diagram of an upper liquid cold plate according to the present invention.
Fig. 4 is a schematic structural view of a mounting structure of a liquid cooling plate of a battery module according to the present invention.
Fig. 5 is an enlarged detail view at a in fig. 4.
In the figure, an upper liquid cooling plate 1, a lower liquid cooling plate 2, a water inlet 3, a water outlet 4, a mounting bracket 5, a battery module 6, a screw 7 and a boss 51.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
The first embodiment is as follows:
in the embodiment shown in fig. 1-5, a battery module liquid cooling plate includes a water inlet 3 and a water outlet 4, and is characterized by further including an even group of liquid cooling plates, where the even group of liquid cooling plates are respectively a 1 st group of liquid cooling plates, a 2 nd group of liquid cooling plates … … kth group of liquid cooling plates, a k +1 st group of liquid cooling plates … … n-1 th group of liquid cooling plates and a 2 nth group of liquid cooling plates, each group of liquid cooling plates includes an upper liquid cooling plate 1 and a lower liquid cooling plate 2, each liquid cooling plate is provided with a liquid cooling plate water inlet and a liquid cooling plate water outlet, the water inlet is respectively communicated with the liquid cooling plate water inlet of the upper liquid cooling plate in the first group of liquid cooling plates and the liquid cooling plate water inlet of the lower liquid cooling plate, and the connection mode between each group of liquid cooling plates is as follows: a liquid cooling plate water outlet of an upper liquid cooling plate of the kth group of liquid cooling plates is connected with a liquid cooling plate water inlet of a lower liquid cooling plate of the kth +1 group of liquid cooling plates; a liquid cooling plate water outlet of a lower liquid cooling plate of the kth group of liquid cooling plates is connected with a liquid cooling plate water inlet of an upper liquid cooling plate of the kth +1 group of liquid cooling plates, and the water outlet is connected with a liquid cooling plate water outlet of an upper liquid cooling plate in the 2n group of liquid cooling plates and a liquid cooling plate water outlet of the lower liquid cooling plate; the water pipe joint comprises a liquid cooling plate interface and a water outlet pipeline perpendicular to the liquid cooling plate interface, and the liquid cooling plate interface is connected with a water inlet or a water outlet. The number of the even number of the liquid cooling plates is two, and the lower liquid cooling plate is wider than the upper liquid cooling plate. The water pipe joints quantity is two, is first water pipe joint and second water pipe joint respectively, first water pipe joint connects the water inlet, and second water pipe joint connects the delivery port all the time.
The application still provides a mounting structure of battery module liquid cooling board, including any battery module liquid cooling board of the aforesaid, still include battery module 6, the liquid cooling board includes flat panel spare and runner plate, flat panel spare outline is bigger than runner plate outline, be provided with the runner on the runner plate, the runner is that the runner plate obtains through the punching press, the runner plate with flat panel spare welded fastening, flat panel spare is provided with the mounting hole in the non-runner part that surpasss the runner plate, the battery module is provided with the mounting hole on corresponding the position, and the screw passes the mounting hole of battery module with the mounting hole of liquid cooling board passes through the nut and makes battery module and liquid cooling board fixed. The runner is punched, the runner is designed more freely, the designed runner pressure is reduced, and the heat exchange effect is better. When the liquid cooling plate is installed, the flow channel is exposed downwards, and in order to prevent the flow channel from being deformed due to extrusion of hard objects, foam and the like can be placed at the bottom of the liquid cooling plate. Still include installing support 5, the installing support mounting is in below the liquid cooling board, be provided with boss 51 on the installing support, the height of boss is greater than the thickness of runner plate, the position of boss is corresponding with the position of the mounting hole on the liquid cooling board, be provided with the mounting hole on the boss, the screw passes the mounting hole of battery module the mounting hole of liquid cooling board with the mounting hole of boss makes through the nut the battery module the liquid cooling board with the installing support is fixed. The boss is used for suspending the punched runner plate, so that the runner plate is protected from being extruded and collided, and the deformation of the runner plate is prevented. And a hollow-out area is arranged on the mounting bracket. The hollow area on the mounting bracket can increase the heat dissipation effect. And the edge of the mounting bracket is provided with a flanging structure. The flanging structure of the mounting bracket can increase the strength of the mounting bracket.
In the technical scheme, all the liquid cooling plates do not need to be connected in parallel for a plurality of liquid cooling plates of an upper layer and a lower layer of structure, only one upper liquid cooling plate and one lower liquid cooling plate need to be connected in parallel, then the remaining upper liquid cooling plate and the lower liquid cooling plate are connected in series in a crossed manner, so that the number of the upper liquid cooling plate and the lower liquid cooling plate in two parallel circuits is the same, the flow channels and the pressure drop of the two parallel circuits are ensured to be the same, the flow of the whole structure is uniform, and the purpose of uniform heat dissipation is achieved.
At present, along with the promotion of battery specific energy, the spare tyre is important part again, this region of back seat back can be used to most whole car factories and places electrical power generating system, just form a high thin box promptly, need battery module two-layer to arrange, because the restriction of automobile body space, it is narrow above leading to battery box lower face width, it places more modules than above to lead to following needs, so the liquid cooling plate that leads to the battery package inside upper and lower floor is different, this structure is according to the regional size adjustment's of back seat back upper and lower liquid cold drawing's of vehicle number and shape.
Claims (7)
1. The utility model provides a battery module liquid cooling board, includes water inlet and delivery port, characterized by still includes: liquid cold drawing is organized to the even number, liquid cold drawing is organized respectively for the 1 st group liquid cold drawing, the 2 nd group liquid cold drawing … … kth group liquid cold drawing, the kth +1 group liquid cold drawing … … 2n-1 group liquid cold drawing and the 2n group liquid cold drawing in every group liquid cold drawing, including liquid cold drawing and lower liquid cold drawing in every group liquid cold drawing, be provided with liquid cold drawing water inlet and liquid cold drawing delivery port on every liquid cold drawing, the liquid cold drawing water inlet of last liquid cold drawing in the first group liquid cold drawing of water inlet intercommunication respectively and the liquid cold drawing water inlet of lower liquid cold drawing, the connected mode between every group liquid cold drawing is: a liquid cooling plate water outlet of an upper liquid cooling plate of the kth group of liquid cooling plates is connected with a liquid cooling plate water inlet of a lower liquid cooling plate of the kth +1 group of liquid cooling plates; a liquid cooling plate water outlet of a lower liquid cooling plate of the kth group of liquid cooling plates is connected with a liquid cooling plate water inlet of an upper liquid cooling plate of the kth +1 group of liquid cooling plates, and the water outlet is connected with a liquid cooling plate water outlet of an upper liquid cooling plate in the 2n group of liquid cooling plates and a liquid cooling plate water outlet of the lower liquid cooling plate; the water pipe joint comprises a liquid cooling plate interface and a water outlet pipeline perpendicular to the liquid cooling plate interface, and the liquid cooling plate interface is connected with a water inlet or a water outlet.
2. The battery module liquid cooling plate of claim 1, wherein the even number of liquid cooling plates is two, and the lower liquid cooling plate is wider than the upper liquid cooling plate.
3. The battery module liquid cooling plate of claim 1, wherein the number of the water pipe connectors is two, and the two water pipe connectors are respectively a first water pipe connector and a second water pipe connector, the first water pipe connector is connected with a water inlet, and the second water pipe connector is connected with a water outlet.
4. A mounting structure of battery module liquid cooling board, characterized by, include battery module liquid cooling board and battery module of any one of above claims 1-3, the liquid cooling board includes flat panel spare and runner plate, flat panel spare outline is bigger than runner plate outline, be provided with the runner on the runner plate, the runner is that the runner plate obtains through the punching press, runner plate with flat panel spare welded fastening, flat panel spare is provided with the mounting hole in the non-runner part that surpasss runner plate, the battery module is provided with the mounting hole on corresponding the position, the screw pass the mounting hole of battery module with the mounting hole of liquid cooling board makes battery module and liquid cooling board fixed through the nut.
5. The mounting structure of a battery module liquid cooling plate as claimed in claim 4, further comprising a mounting bracket, wherein the mounting bracket is mounted under the liquid cooling plate, a boss is disposed on the mounting bracket, the height of the boss is greater than the thickness of the flow channel plate, the position of the boss corresponds to the position of the mounting hole on the liquid cooling plate, a mounting hole is disposed on the boss, and a screw passes through the mounting hole of the battery module, the mounting hole of the liquid cooling plate and the mounting hole of the boss to fix the battery module, the liquid cooling plate and the mounting bracket through a nut.
6. The mounting structure of the liquid cooling plate of the battery module as set forth in claim 5, wherein a hollowed-out region is provided on the mounting bracket.
7. The mounting structure of the battery module liquid cooling plate as claimed in claim 6, wherein the edge of the mounting bracket is provided with a flanging structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122297587.5U CN216250877U (en) | 2021-09-18 | 2021-09-18 | Battery module liquid cooling board and mounting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122297587.5U CN216250877U (en) | 2021-09-18 | 2021-09-18 | Battery module liquid cooling board and mounting structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216250877U true CN216250877U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122297587.5U Active CN216250877U (en) | 2021-09-18 | 2021-09-18 | Battery module liquid cooling board and mounting structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216250877U (en) |
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2021
- 2021-09-18 CN CN202122297587.5U patent/CN216250877U/en active Active
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