CN213278188U - Battery temperature adjusting plate and battery pack - Google Patents

Battery temperature adjusting plate and battery pack Download PDF

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Publication number
CN213278188U
CN213278188U CN202022351384.5U CN202022351384U CN213278188U CN 213278188 U CN213278188 U CN 213278188U CN 202022351384 U CN202022351384 U CN 202022351384U CN 213278188 U CN213278188 U CN 213278188U
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plate
liquid
side plate
liquid outlet
battery temperature
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CN202022351384.5U
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唐城琨
田瑞生
许淘淘
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Avic Innovation Technology Research Institute Jiangsu Co ltd
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CALB Technology Co Ltd
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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 application relates to the field of batteries and discloses a battery temperature adjusting plate and a battery pack. The battery temperature adjusting plate comprises a liquid inlet sub-plate and a liquid outlet sub-plate, wherein a liquid inlet cavity is formed in the liquid inlet sub-plate, and a liquid outlet cavity is formed in the liquid outlet sub-plate; the liquid inlet cavity is communicated with the liquid outlet cavity through a liquid return port; the liquid inlet daughter board is provided with a liquid inlet, the liquid outlet daughter board is provided with a liquid outlet, the liquid inlet and the liquid outlet are close to a first side plate of the battery temperature adjusting plate, along the extending direction of the first side plate, the liquid inlet and the liquid return port are located on two sides of the central line of the liquid inlet cavity, and/or the liquid outlet and the liquid return port are located on two sides of the central line of the liquid outlet cavity. The battery temperature adjusting plate is utilized to solve the problem that the flow distribution of the heat transfer medium of the existing battery temperature adjusting plate is uniform.

Description

Battery temperature adjusting plate and battery pack
Technical Field
The application relates to the technical field of batteries, in particular to a battery temperature adjusting plate and a battery pack.
Background
At present, rechargeable batteries are widely used in various industries, and for example, new energy vehicles are taken as examples, and a battery pack formed by the rechargeable batteries becomes a power source of the new energy vehicles to provide power supply for the new energy vehicles. When the battery pack is in a working state, a large amount of heat can be released, if the heat is not discharged in time, the temperature of the battery pack can be increased, and even the normal operation of corresponding equipment can be influenced. In the conventional battery pack, a cooling plate is generally disposed at the bottom of a battery pack composed of battery cells, and a heat transfer medium is introduced into the cooling plate to adjust the temperature of the battery pack. Although the existing cooling plate can achieve a certain cooling effect, the existing cooling plate has the problem of uneven cooling effect.
SUMMERY OF THE UTILITY MODEL
The application discloses battery temperature regulating plate and battery package to solve present battery temperature regulating plate temperature regulation inhomogeneous problem.
In order to achieve the purpose, the application provides the following technical scheme:
a battery temperature adjusting plate comprises a liquid inlet sub-plate and a liquid outlet sub-plate, wherein a liquid inlet cavity is formed in the liquid inlet sub-plate, and a liquid outlet cavity is formed in the liquid outlet sub-plate; the liquid inlet cavity is communicated with the liquid outlet cavity through a liquid return port; the inlet with the liquid outlet closes on battery temperature regulation plate's first curb plate follows first curb plate extending direction, the inlet with return the liquid mouth and be located the both sides of the central line in feed liquor chamber, and/or, the liquid outlet with return the liquid mouth and be located the both sides of the central line in play liquid chamber.
The beneficial effect that this application adopted above-mentioned technical scheme to produce is as follows:
the application provides a battery temperature regulating plate, including the feed liquor daughter board with go out the liquid daughter board. The liquid inlet daughter board is internally provided with a liquid inlet cavity, the liquid outlet daughter board is internally provided with a liquid outlet cavity, the liquid inlet cavity is communicated with the liquid outlet cavity through a liquid return port, meanwhile, the end part of the liquid inlet daughter board is provided with a liquid inlet, and the end part of the liquid outlet daughter board is provided with a liquid outlet. When the temperature is adjusted, the heat transfer medium is introduced from the liquid inlet, flows through the liquid inlet cavity, enters the liquid outlet cavity from the liquid return port, and then flows out from the liquid outlet, so that the temperature adjusting effect is realized. The liquid inlet and the liquid outlet are arranged close to the first side plate of the battery temperature adjusting plate, the liquid inlet and the liquid outlet are arranged close to the same side plate of the battery temperature adjusting plate, and meanwhile, the liquid inlet and the liquid return port are located on two sides of the central line of the liquid inlet cavity, and/or the liquid outlet and the liquid return port are located on two sides of the central line of the liquid outlet cavity. Under this structure, take the feed liquor daughter board as an example, heat-transfer medium gets into the feed liquor intracavity from the inlet, because inlet and liquid return mouth are located the both sides of this feed liquor chamber central line, reduced the distance difference that the heat-transfer medium that flows along different routes in the feed liquor intracavity reaches the liquid return mouth, consequently, the resistance that liquid that gets into from the inlet met in the feed liquor intracavity is more unanimous. Similarly, the liquid outlet and the liquid return port are arranged on two sides of the central line of the liquid outlet cavity, so that the distance difference of heat transfer media flowing along different paths between the liquid return port and the liquid outlet can be reduced, the resistance in the liquid outlet cavity, the flowing distance from liquid inlet to liquid outlet and the like are more consistent, and the temperature of the battery temperature adjusting plate is adjusted uniformly.
Drawings
Fig. 1 is a schematic structural diagram of a battery pack case provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a temperature adjustment system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural view of a battery temperature regulation plate according to an embodiment of the present disclosure;
fig. 4 is a schematic structural view of a battery temperature regulation plate according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another battery temperature regulation plate according to an embodiment of the present application.
Reference numerals: 10-a box body bottom plate; 101-mounting a beam; 11-a liquid inlet pipeline; 12-a liquid outlet pipeline; 20-battery temperature adjusting plate; 201-a first side panel; 202-a second side panel; 203-a third side plate; 204-a fourth side panel; 21-a liquid inlet plate; 21 a-a liquid inlet chamber; 211-a liquid inlet; 212-a liquid inlet flow channel; 22-liquid outlet daughter board; 22 a-a liquid outlet chamber; 221-a liquid outlet; 222-liquid outlet flow channel; 23-a divider plate; 24-a liquid return port; 251-a first support rib; 252-second support ribs.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to facilitate understanding of the battery temperature adjusting plate according to the embodiment of the present application, a brief description is first made below of an application scenario thereof. The battery pack generally includes a case and a battery pack disposed in the case, wherein the battery pack is composed of a plurality of sequentially arranged battery cells, the case includes a case bottom plate and a case side plate, and the case bottom plate and the case side plate constitute a receiving space for receiving the battery pack. In order to regulate the temperature of the battery pack, for example, cooling, heating, etc., a cooling and/or heating system is generally provided at the bottom of the battery pack, and the battery pack may be cooled using a bottom plate of the case, taking the case as an example where the cooling system is provided at the bottom of the battery pack. The structure of the box of an embodiment of the present application is shown in fig. 1, and the bottom plate 10 of the box includes at least one set of battery temperature adjusting plates 20, and a mounting beam 101 is disposed between each set of battery temperature adjusting plates 20 to fix the battery pack. Any one group of battery temperature adjusting plates 20 comprises an inlet liquid plate 21 and an outlet liquid plate 22 to form a temperature adjusting branch. Fig. 2 is a schematic structural view of a temperature adjusting system including a battery temperature adjusting plate 20 and a heat transfer medium pipe, as shown in fig. 2. The heat transfer medium pipeline comprises a liquid inlet pipeline 11 and a liquid outlet pipeline 12, the liquid inlet pipeline 11 is communicated with a liquid inlet sub-plate 21, and the liquid outlet pipeline 12 is communicated with a liquid outlet sub-plate 22.
Fig. 3 is a schematic structural diagram of a battery temperature regulation plate 20 according to an embodiment of the present application, and referring to fig. 2 and 3 together, the battery temperature regulation plate 20 includes a liquid inlet sub-plate 21 and a liquid outlet sub-plate 22 which are arranged side by side. The liquid inlet plate 21 has a liquid inlet 211, a liquid inlet cavity 21a is formed therein, the liquid inlet 211 is communicated with the liquid inlet cavity 21a, and the liquid inlet cavity may include at least two liquid inlet flow channels 212. The liquid outlet plate 22 has a liquid outlet 221, and a liquid outlet cavity 22a is formed in the liquid outlet plate, and the liquid outlet 221 is communicated with the liquid outlet cavity 22a, and the liquid outlet cavity may include at least two liquid outlet channels 222, for example. The liquid inlet channel 212 is communicated with the liquid outlet channel 222 through the liquid return port 24. Referring to fig. 2, the liquid inlet 211 is connected to the liquid inlet pipe 11, and the liquid outlet 221 is connected to the liquid outlet pipe 12.
It can be understood that, in the embodiment of the present application, the liquid inlet sub-plate 21 and the liquid outlet sub-plate 22 are isolated from each other and not communicated with each other except the liquid return port 24. Thus, when a heat transfer medium, such as a cooling liquid, is introduced into the liquid inlet 211, the heat transfer medium flows through the liquid inlet flow channel 212 in the liquid inlet sub-plate 21, then flows from the liquid return port 24 to the liquid outlet flow channel 222, and then flows out from the liquid outlet 221, so as to adjust the temperature of the battery pack disposed on the surface thereof, such as cooling. Wherein the heat transfer medium is a liquid, such as water, that transfers heat.
With continued reference to fig. 3, the battery temperature regulation plate 20 of an embodiment of the present application includes a first side plate 201, a second side plate 202, a third side plate 203, and a fourth side plate 204. In an embodiment of the present application, the first side plate 201 may be disposed parallel to the second side plate 202, and the third side plate 203 may be disposed parallel to the fourth side plate 204. In an alternative embodiment of the present application, the battery temperature adjustment plate 20 is rectangular, and the third side plate 203 and the fourth side plate 204 are perpendicular to the first side plate 201 and the second side plate 202.
With continued reference to fig. 3, in one embodiment of the present application, the liquid inlet 211 and the liquid outlet 221 are adjacent to the first side plate 201 of the battery temperature adjustment plate 20. In the extending direction of the first side plate 201, the liquid inlet 211 and the liquid return 24 are located on two sides of the central line L1 of the liquid inlet cavity 21a, and/or the liquid outlet 221 and the liquid return 24 are located on two sides of the central line L2 of the liquid outlet cavity 22 a.
It can be understood that the liquid inlet 211 in the embodiment of the present application is disposed adjacent to the first side plate 201, and refers to the arrangement direction of the first side plate 201 and the second side plate 202The liquid port 211 is disposed closer to the first side plate 201, for example, by a distance h between the first side plate 201 and the second side plate 2010The distance h between the liquid inlet 211 and the first side plate 201 is used as a reference1Can be less than 0.1h0. Similarly, the liquid outlet 221 is disposed adjacent to the first side plate 201, and refers to the arrangement direction of the first side plate 201 and the second side plate 202, and the liquid outlet 221 is disposed closer to the first side plate 201, for example, by the distance h between the first side plate 201 and the second side plate 2010The distance h between the liquid inlet 211 and the first side plate 201 is used as a reference2Can be less than 0.1h0。
In this structure, taking the liquid inlet sub-plate 21 as an example, the heat transfer medium enters the liquid inlet flow channel 212 from the liquid inlet 211, because the heat transfer medium is constrained by the liquid inlet flow channel 212 in the flowing process, and is simultaneously subjected to the friction resistance of the liquid inlet flow channel 212 and the internal shearing resistance of the heat transfer medium in the flowing process, and the liquid inlet 211 and the liquid return port 24 are located at two sides of the center line L1 of the liquid inlet cavity 21a, the resistance of the heat transfer medium in different liquid inlet flow channels 212 of the liquid inlet cavity 21a can be reduced, the resistance encountered by the heat transfer medium entering from the liquid inlet 211 in the liquid inlet flow channel 212 can be more consistent, and meanwhile, the pressure difference of the heat transfer medium in different liquid inlet flow channels 212 can be made to be consistent, so that the distribution of the heat transfer medium in different liquid. Similarly, by arranging the liquid outlet 221 and the liquid return port 24 on two sides of the center line of the liquid outlet sub-plate 22, the resistances of the heat transfer medium in different liquid outlet flow channels 222 can be more consistent, and the heat transfer medium can be more uniformly distributed in different liquid outlet flow channels 222. As shown in fig. 3, in a preferred embodiment of the present application, the partition plate 23 disposed between the liquid inlet plate 21 and the liquid outlet plate 22 has one end fixedly connected to the first side plate 201, and the other end having a gap with the second side plate 202 of the battery temperature adjusting plate 20, the gap forming the liquid return port 24, wherein the second side plate 202 is disposed opposite to the first side plate 201. In this embodiment, the partition plate 23 is disposed to extend from the first side plate 201 to the second side plate 202, and a gap is reserved between the end of the partition plate and the second side plate 202 to form the liquid return port 24. In this structure, the liquid return port 24 may be disposed adjacent to the second side plate 202 to further increase the uniformity of the heat transfer medium in each of the liquid inlet flow passage 212 and the liquid outlet flow passage 222.
The battery temperature adjusting plate according to another embodiment of the present application, as shown in fig. 4, includes a partition plate 23 disposed between the liquid inlet plate 21 and the liquid outlet plate 22. The partition plate 23 is used for separating the liquid inlet sub-plate 21 and the liquid outlet sub-plate 22 by displacing the middle part of the battery temperature adjusting plate 20, so that a liquid inlet cavity 21a in the liquid inlet sub-plate 21 and a liquid outlet cavity 22a in the liquid outlet sub-plate 22 are not communicated with each other. One end of the partition plate 23 is fixedly connected to the first side plate 201 of the battery temperature adjustment plate 20, and the other end of the partition plate 23 is fixedly connected to the second side plate 202 of the battery temperature adjustment plate 20, wherein the second side plate 202 is opposite to the first side plate 201. In this embodiment, the partition plate 23 is provided with a liquid return port 24.
In one embodiment of the present application, the liquid return port 24 is located on the partition plate 23 near the second side plate 202. Thus, the distance difference and resistance difference between the liquid inlet channels 212 between the liquid inlet 211 and the liquid return port 24 and the distance difference and resistance difference between the liquid outlet channels 222 between the liquid return port 24 and the liquid outlet 221 of the heat transfer medium flowing from the liquid inlet 211 can be further reduced, so that the flow rates of the heat transfer medium in the liquid inlet channels 212 and the heat transfer medium in the liquid outlet channels 222 are more uniform.
With continued reference to fig. 3, in an embodiment of the present application, the first side plate 201 and the second side plate 202 are both straight plates, the first side plate 201 is parallel to the second side plate 202, and the partition plate 23 is a straight plate and is located at a perpendicular bisector of the first side plate 201 and the second side plate 202. The partition plate 23 is in a straight plate shape, so that the resistance of the heat transfer medium in the liquid inlet channel 212 and the liquid outlet channel 222 near the partition plate 23 can be reduced, and the positions of the liquid inlet 211 and the liquid outlet 221 can be conveniently arranged. Optionally, the third side plate 203 is parallel to the partition plate 23, so that the resistance of the heat transfer medium in the inlet channel 212 close to the third side plate 203 can be reduced.
In an embodiment of the present application, in the liquid inlet cavity 21a, a distance between the liquid inlet 211 and the third side plate 203 of the battery temperature adjustment plate 20 is smaller than a distance between the liquid inlet 211 and the partition plate 23 along the extending direction of the first side plate 201, wherein two ends of the third side plate 203 are respectively connected to the first side plate 201 and the second side plate 202. The liquid inlet 211 is disposed close to the third side plate 203, so that the distance difference and the resistance difference between the liquid inlet channels 212 can be further reduced, and the flow rate of the heat transfer medium in each liquid inlet channel 212 can be more uniform.
In another embodiment of the present application, in the liquid outlet cavity 22a along the extending direction of the first side plate 201, the distance between the liquid outlet 221 and the fourth side plate 204 of the battery temperature adjusting plate 20 is smaller than the distance between the liquid outlet 221 and the partition plate 23, wherein two ends of the fourth side plate 204 are respectively connected to the first side plate 201 and the second side plate 202, and the fourth side plate 204 is disposed opposite to the third side plate 203. The liquid outlet 221 is disposed close to the fourth side plate 204, so that the distance difference and the resistance difference between the liquid inlet and outlet channels 222 can be further reduced, and the flow rate of the heat transfer medium in each liquid outlet channel 222 can be more uniform. Optionally, the fourth side plate 204 is parallel to the partition plate 23, so as to reduce the resistance of the heat transfer medium in the liquid outlet channel 222 close to the fourth side plate 204.
With continued reference to fig. 3, in an embodiment of the present application, a first support rib 251 is disposed in the liquid inlet chamber 21a of the liquid inlet sub-plate 21, and a second support rib 252 is disposed in the liquid outlet chamber 22a of the liquid outlet sub-plate 22. In the liquid inlet cavity 21a, the first support rib 251 divides the liquid inlet cavity 21a into a plurality of liquid inlet flow channels 212, and the number of the liquid inlet flow channels 212 is, for example, two, three, four, five or more than five; in the liquid outlet cavity 22a, the second support rib 252 divides the liquid outlet cavity 22a into a plurality of liquid outlet channels 222, and the number of the liquid outlet channels 222 is, for example, two, three, four, five or more than five. Optionally, at least two first support ribs 251 are disposed in the liquid inlet cavity 21a of the liquid inlet plate 21, and at least two second support ribs 252 are disposed in the liquid outlet cavity 22a of the liquid outlet plate 22, so that the number of the liquid inlet flow channels 212 is greater than or equal to 3, and the number of the liquid outlet flow channels 222 is greater than or equal to 3. The first support ribs 251 and the second support ribs 252 can increase the structural strength of the liquid inlet plate 21 and the liquid outlet plate 22, in addition to forming the liquid inlet flow passage 212 and the liquid outlet flow passage 222 respectively.
In one embodiment of the present application, the first support rib 251 and the second support rib 252 are parallel to the partition plate 23. This reduces resistance of the heat transfer medium to the liquid inlet flow path 212 and the liquid outlet flow path 222.
In an embodiment of the present application, the length of the first supporting rib 251 between the third side plate 203 and the liquid inlet 211 and near the liquid inlet 211 along the extending direction of the first side plate 201 is longer than the length of the first supporting rib 251 far from the liquid inlet 211; between the fourth side plate and the liquid outlet 221, the length of the second support rib 252 near the liquid outlet 221 is longer than the length of the second support rib 252 far from the liquid outlet 221.
At the liquid inlet 21 and the liquid outlet 221, the driving force generated by the heat transfer medium is large, the flow rate and the flow rate of the heat transfer medium are relatively high, if the lengths of the first support rib 251 or the second support rib 252 are the same, the heat transfer medium is easier to flow to the liquid inlet channel 212 close to the liquid inlet 211, and the resistance of the heat transfer medium in the liquid inlet channel 212 can be relatively improved by increasing the length of the first support rib 251 close to the liquid inlet 211. Therefore, the lengths of the first support rib 251 and the second support rib 252 at the liquid outlet 221 close to the liquid inlet 211 are set to be relatively longer, and the lengths of the first support rib 251 and the second support rib 252 at the liquid outlet 221 far from the liquid inlet 211 are set to be relatively shorter, so that the flow rates of the heat transfer medium in each liquid inlet flow channel 212 and each liquid outlet flow channel 222 can be adjusted, and the flow rates of the heat transfer medium in each liquid inlet flow channel 212 and each liquid outlet flow channel 222 are ensured to be the same.
In one embodiment of the present application, the length of the first supporting rib 251 between the liquid inlet 211 and the liquid return port 24 and near the liquid return port 24 is longer than the length of the first supporting rib 251 far from the liquid return port 24 along the extending direction of the first side plate 201; between the liquid outlet 221 and the liquid return port 24, the length of the second support rib 252 near the liquid return port 24 is longer than the length of the second support rib 252 far from the liquid return port 24. The resistance of the heat transfer medium in the liquid inlet channel 212 and the liquid outlet channel 222 close to the liquid return port 24 is smaller, so that the lengths of the first support rib 251 and the second support rib 252 close to the liquid return port 24 are set to be relatively longer, the flow rate of the heat transfer medium in each liquid inlet channel 212 and each liquid outlet channel 222 can be adjusted, and the flow rate of the heat transfer medium in each liquid inlet channel 212 and each liquid outlet channel 222 is ensured to be the same.
Here, it is understood that the approaching or separating in the embodiment of the present application refers to a relative positional relationship obtained by comparing two first support ribs 251 or two second support ribs 252.
In one embodiment of the present application, the length of the first support rib 251 is gradually decreased from the partition plate 23 to the third side plate 203. The length of the second support rib 252 gradually decreases from the partition plate 23 to the fourth side plate 204.
When the lengths of the first support ribs 251 or the second support ribs 252 are set, the distances between one ends of the different first support ribs 251 or second support ribs 252 and the first side plate of the battery temperature adjustment plate are the same, or the distances between the one ends of the different first support ribs 251 or second support ribs 252 and the second side plate of the battery temperature adjustment plate are the same, and the other ends of the different first support ribs 251 or second support ribs 252 and the first side plate of the battery temperature adjustment plate are different, so. In addition, the lengths of the two ends of the different first supporting ribs 251 or the second supporting ribs 252 from the first side plate and the second side plate are different, so that the double-side adjustment is realized.
In an embodiment of the present application, in the liquid inlet chamber 21a, two ends of the first supporting rib 251 respectively point to the first side plate 201 and the second side plate 202, distances from one end of the first supporting rib 251 to the first side plate 201 are different, and distances from the other end of the first supporting rib 251 to the second side plate 202 are the same; in the liquid outlet cavity 22a, two ends of a second support rib 252 respectively point to the first side plate 201 and the second side plate 202, distances from one end of the second support rib 252 to the first side plate 201 are different, and distances from the other end of the support rib 25 to the second side plate 202 are the same. The adjustment mode belongs to the one-way adjustment of the length of the support rib 25, that is, the end of the first support rib 251 or the second support rib 252 at one of the side plates is in a flush state, and the end of the other side plate is in a non-flush state, wherein the end of the first support rib 251 close to the liquid inlet 211 and the end of the second support rib 252 close to one side of the liquid outlet 221 are in a non-flush state. By the structure, when the liquid inlet sub-plate 21 and the liquid outlet sub-plate 22 are assembled, errors can be effectively prevented.
In the liquid inlet cavity 21a, two ends of a first support rib 251 respectively point to a first side plate 201 and a second side plate 202, the distances from one end of the first support rib 251 to the first side plate 201 are the same, and the distances from the other end of the first support rib 251 to the second side plate 202 are different; in the liquid outlet cavity 22a, two ends of a second support rib 252 respectively point to the first side plate 201 and the second side plate 202, distances from one end of the second support rib 252 to the first side plate 201 are the same, and distances from the other end of the second support rib 252 to the second side plate 202 are different. The adjustment mode is to adjust the lengths of the first support rib 251 and the second support rib 252 in a single direction, that is, the end of the first support rib 251 or the second support rib 252 at one of the side plates is in a flush state, and the end of the other side plate is in a non-flush state, wherein the end of the first support rib 251 close to the liquid inlet 211 and the end of the second support rib 252 close to one side of the liquid outlet 221 are in a non-flush state. By the structure, when the liquid inlet sub-plate 21 and the liquid outlet sub-plate 22 are assembled, errors can be effectively prevented.
In an embodiment of the present application, the distance between the first supporting rib 251 and the first side plate 201 may be proportional to the distance between the first supporting rib 251 and the partition plate 23. The distance between the second support rib 252 and the first side plate 201 may be proportional to the distance between the second support rib 252 and the partition plate 23.
As shown in fig. 5, in an embodiment of the present application, in the extending direction of the first side plate 201, between the third side plate and the liquid inlet 211, the width of the liquid inlet channel 212 close to the liquid inlet 211 is smaller than the width of the liquid inlet channel 212 far from the liquid inlet 211; between the fourth side plate and the liquid outlet 221, the width of the liquid outlet channel 222 near the liquid outlet 221 is smaller than the width of the liquid outlet channel 222 far from the liquid outlet 221. Because the flow velocity of the heat transfer medium near the liquid inlet 211 and the liquid outlet 221 is fast, the driving force is large, and the width of the liquid inlet flow channel 212 or the liquid outlet flow channel 222 near the liquid inlet 211 or the liquid outlet 221 is smaller than the width of the liquid inlet flow channel 212 or the liquid outlet flow channel 222 far from the liquid inlet 211 or the liquid outlet 221, so that the flow in each liquid inlet flow channel 212 and each liquid outlet flow channel 222 is more uniform.
With continued reference to fig. 5, in an embodiment of the present application, between the liquid return port 24 and the liquid inlet 211, the width of the liquid inlet channel 212 near the liquid return port 24 is smaller than the width of the liquid inlet channel 212 far from the liquid return port 24 in the extending direction of the first side plate 201; between the liquid return port 24 and the liquid outlet 221, the width of the liquid outlet channel 222 near the liquid return port 24 is smaller than the width of the liquid outlet channel 222 far from the liquid return port 24. The resistance of the heat transfer medium in the liquid inlet channel 212 and the liquid outlet channel 222 close to the liquid return port 24 is smaller, so that the widths of the liquid inlet channel 212 and the liquid outlet channel 222 close to the liquid return port 24 are set to be relatively narrow, the flow rates of the heat transfer medium in each liquid inlet channel 212 and each liquid outlet channel 222 can be adjusted, and the flow rates of the heat transfer medium in each liquid inlet channel 212 and each liquid outlet channel 222 are ensured to be the same.
As shown in fig. 5, the width of the liquid inlet flow path 212 gradually increases from the partition plate 23 to the third side plate; the width of the liquid outlet channel 222 gradually increases from the partition plate 23 to the fourth side plate.
In one embodiment of the present application, the widths of the inlet flow channel 212 and the outlet flow channel 222 are less than or equal to 60mm to ensure the flatness of the battery temperature adjusting plate 20.
In an embodiment of the present application, the liquid inlet sub-plate 21 and the liquid outlet sub-plate 22 constituting the battery temperature adjusting plate 20 may be respectively prepared by an extrusion molding process, and the liquid inlet sub-plate 21 and the liquid outlet sub-plate 22 prepared by the extrusion molding process have high strength and can bear a certain pressure. In addition, the liquid inlet sub-plate 21 and the liquid outlet sub-plate 22 may be connected by friction stir welding. The sealing performance of the friction stir welding is good, the sealing performance of the battery temperature adjusting plate 20 can be guaranteed, and meanwhile, the bearing capacity of the liquid inlet sub-plate 21 and the liquid outlet sub-plate 22 can be improved.
In another embodiment of this application, liquid inlet daughter board and play liquid daughter board can be integral type structure, and the division board can set up with liquid inlet daughter board and play liquid daughter board integrated into one piece, for example extrusion to improve the pressure-bearing capacity of liquid inlet daughter board and play liquid daughter board, and make liquid inlet daughter board and play liquid daughter board have better leakproofness.
In one embodiment of the present application, a surface of one side of the battery temperature adjustment plate is provided with a thermal insulation coating. When the battery module is assembled by using the battery temperature adjusting plate and the battery pack together, the surface of one side of the battery temperature adjusting plate, which is covered with the heat-insulating coating, is back to the battery pack.
In the bottom of battery temperature regulating plate, one side that also deviates from the group battery sets up the heat preservation coating, can keep warm the regulating plate that keeps warm under the high temperature refrigeration operating mode, effectively prevents heat preservation regulating plate and environment heat transfer, simultaneously, keeps warm to the battery package under the operating mode of low temperature severe cold, reduces the heat dissipation, avoids the energy of battery consumption, improves the continuation of the journey mileage of battery package.
In the embodiment of the application, utilize the heat preservation coating to replace the cotton design of traditional heat preservation, can heat preservation coating and battery temperature regulation board's surface closely laminate, long-term the use can not take place fracture scheduling problem. Meanwhile, the arrangement of the heat preservation coating has strong shape adaptability, and the special-shaped parts on the surface of the battery temperature regulation plate, such as the raised installation parts and the installation holes on the outer surfaces of the first side plate, the second side plate, the third side plate and the fourth side plate, can be tightly attached.
In a second aspect, the present application provides a battery pack including the battery temperature regulation plate of the first aspect of the present application.
Because this battery package includes the battery temperature regulation board of this application embodiment, from this application battery temperature regulation board has under the condition of better temperature regulation uniformity, the temperature at each position of this application embodiment package during operation is more unanimous.
In one embodiment of the application, the battery pack comprises a box body and a battery pack arranged in the box body, wherein the battery temperature adjusting plate of the embodiment of the first aspect of the application is arranged at the bottom of the box body.
In this application embodiment, when installation battery temperature regulation board, battery temperature regulation board's the direction of liquid inlet runner and play liquid runner is perpendicular with the length direction of group battery, and wherein, the length direction of group battery is the array orientation between a plurality of battery monomer in the group battery. Compared with the structure that the liquid inlet flow channel is parallel to the length direction of the battery pack, the structure has the advantages that the backflow flow of the heat transfer medium is short, the temperature difference is small, and the cooling effect can be more balanced.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. A battery temperature adjusting plate is characterized by comprising a liquid inlet sub-plate and a liquid outlet sub-plate;
a liquid inlet cavity is formed in the liquid inlet sub-plate, and a liquid outlet cavity is formed in the liquid outlet sub-plate; the liquid inlet cavity is communicated with the liquid outlet cavity through a liquid return port;
the feed liquor daughter board be equipped with the inlet of feed liquor chamber intercommunication, go out the liquid daughter board be equipped with go out the liquid outlet of liquid chamber intercommunication, the inlet with the liquid outlet closes on battery temperature regulation board's first curb plate follows first curb plate extending direction, the inlet with it is located to return the liquid mouth the both sides of the central line in feed liquor chamber, and/or, the liquid outlet with it is located to return the liquid mouth the both sides of the central line in liquid chamber.
2. The battery temperature regulating plate according to claim 1, wherein the battery temperature regulating plate comprises a partition plate disposed between the liquid inlet sub-plate and the liquid outlet sub-plate, one end of the partition plate is fixedly connected with the first side plate, a gap is formed between the other end of the partition plate and a second side plate of the battery temperature regulating plate, the gap forms the liquid return port, and the second side plate is disposed opposite to the first side plate.
3. The battery temperature regulating plate according to claim 2, wherein the separator is a straight plate.
4. The battery temperature regulating plate according to claim 3, wherein a third side plate of the battery temperature regulating plate is disposed opposite to the partition plate along an extending direction of the first side plate, and a distance between the liquid inlet and the third side plate is smaller than a distance between the liquid inlet and the partition plate in the liquid inlet cavity; and two ends of the third side plate are respectively connected with the first side plate and the second side plate.
5. The battery temperature regulating plate according to claim 4, wherein the third side plate is parallel to the partition plate, and the first side plate is parallel to the second side plate.
6. The battery temperature regulating plate according to claim 3, wherein a fourth side plate of the battery temperature regulating plate is disposed opposite to the partition plate along an extending direction of the first side plate, and a distance between the liquid outlet and the fourth side plate of the battery temperature regulating plate is smaller than a distance between the liquid outlet and the partition plate in the liquid outlet chamber; and two ends of the fourth side plate are respectively connected with the first side plate and the second side plate.
7. The battery temperature regulating plate according to claim 6, wherein the fourth side plate is parallel to the partition plate, and the first side plate is parallel to the second side plate.
8. The battery temperature regulating plate according to any one of claims 2 to 7, wherein at least two first support ribs are provided in the liquid inlet chamber, and the first support ribs divide the liquid inlet chamber into a plurality of liquid inlet flow passages; at least two second support ribs are arranged in the liquid outlet cavity, and the liquid outlet cavity is divided into a plurality of liquid outlet flow channels by the second support ribs; wherein the first support rib and the second support rib are parallel to the partition plate.
9. The battery temperature adjustment plate according to any one of claims 1 to 4, wherein a surface of one side of the battery temperature adjustment plate is provided with a thermal insulation coating.
10. A battery pack comprising the battery temperature adjustment plate according to any one of claims 1 to 9.
CN202022351384.5U 2020-10-20 2020-10-20 Battery temperature adjusting plate and battery pack Active CN213278188U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022351384.5U CN213278188U (en) 2020-10-20 2020-10-20 Battery temperature adjusting plate and battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022351384.5U CN213278188U (en) 2020-10-20 2020-10-20 Battery temperature adjusting plate and battery pack

Publications (1)

Publication Number Publication Date
CN213278188U true CN213278188U (en) 2021-05-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022351384.5U Active CN213278188U (en) 2020-10-20 2020-10-20 Battery temperature adjusting plate and battery pack

Country Status (1)

Country Link
CN (1) CN213278188U (en)

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Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province

Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd.

Address before: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province

Patentee before: Kaibo Energy Technology Co.,Ltd.