CN218274796U - Liquid cooling plate, cooling system and battery - Google Patents
Liquid cooling plate, cooling system and battery Download PDFInfo
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- CN218274796U CN218274796U CN202221345912.9U CN202221345912U CN218274796U CN 218274796 U CN218274796 U CN 218274796U CN 202221345912 U CN202221345912 U CN 202221345912U CN 218274796 U CN218274796 U CN 218274796U
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Abstract
The application discloses a liquid cooling plate, which comprises a cooling flow passage, wherein the cooling flow passage comprises a liquid inlet flow passage, a liquid outlet flow passage and a heat exchange area; the heat exchange area comprises a first heat exchange area and a second heat exchange area, the first heat exchange area comprises a first heat exchange runner group, the first heat exchange runner group comprises a plurality of groups of first heat exchange runners which are arranged side by side, and the plurality of groups of first heat exchange runners are connected in series; the second heat exchange area comprises a second heat exchange flow channel group, the second heat exchange flow channel group comprises a plurality of groups of second heat exchange flow channels which are arranged side by side, and the plurality of groups of second heat exchange flow channels are connected in parallel; the liquid inlet flow channel is respectively connected with the first heat exchange flow channel group and the second heat exchange flow channel group in parallel, and the liquid outlet flow channel is respectively connected with the first heat exchange flow channel group and the second heat exchange flow channel group in parallel. The application also discloses a cooling system and a battery. The method and the device can achieve the balance of the flow of the cooling liquid in each area.
Description
Technical Field
The application relates to the technical field of battery cooling, in particular to a liquid cooling plate, a cooling system and a battery.
Background
In the development of electric vehicles, the breakthrough of battery technology has become one of the important reasons for limiting the large-scale marketing of electric vehicles, and the capacity and safety of batteries are still to be breakthrough. The higher the endurance mileage is, the higher the required battery capacity is, and the higher the heating power is during operation, which brings hidden troubles to the safe use of the battery. Therefore, how to timely take away the heat generated by the battery in the working process of the battery is a necessary prerequisite for the normal work of the battery.
At present, the cooling scheme of current battery is for setting up the liquid cooling board, and in prior art, in order to increase the stroke of coolant liquid, consequently the cooling runner in the liquid cooling board adopts the mode of detouring to arrange, nevertheless can lead to setting up the flow resistance difference between the cooling runner of keeping away from total access & exit and the cooling runner that is close to total access & exit like this to the flow difference that has led to the cooling runner of different positions is great, influences cooling effect.
Therefore, a liquid cooling plate, a cooling system and a battery with balanced flow of cooling liquid are needed to be designed.
Disclosure of Invention
The utility model provides a purpose is to overcome prior art's not enough, provides a liquid cooling board, cooling system and battery, and the coolant liquid flow in its each region is balanced, has better cooling effect.
The technical scheme of the application provides a liquid cooling plate, which comprises a cooling flow channel, wherein the cooling flow channel comprises a liquid inlet flow channel, a liquid outlet flow channel and a heat exchange area, the liquid inlet flow channel comprises a liquid inlet, the liquid outlet flow channel comprises a liquid outlet, the liquid cooling plate is provided with an inlet end and an outlet end, and the liquid inlet and the liquid outlet are arranged at the inlet end and the outlet end;
the heat exchange area comprises a first heat exchange area and a second heat exchange area, and the first heat exchange area is positioned between the inlet and outlet end and the second heat exchange area;
the first heat exchange area comprises a first heat exchange runner group, the first heat exchange runner group comprises a plurality of groups of first heat exchange runners which are arranged side by side, and the plurality of groups of first heat exchange runners are connected in series;
the second heat exchange area comprises a second heat exchange runner group, the second heat exchange runner group comprises a plurality of groups of second heat exchange runners which are arranged side by side, and the plurality of groups of second heat exchange runners are connected in parallel;
the liquid inlet flow channel is respectively connected with the first heat exchange flow channel group and the second heat exchange flow channel group in parallel, and the liquid outlet flow channel is respectively connected with the first heat exchange flow channel group and the second heat exchange flow channel group in parallel.
Preferably, the first heat exchange flow channel includes a first inlet and a first outlet, the first inlet of the first heat exchange flow channel is communicated with the liquid inlet flow channel, the first outlet of the last first heat exchange flow channel is communicated with the liquid outlet flow channel, and the first outlet of the adjacent first heat exchange flow channel is communicated with the first inlet.
Preferably, the first inlet of the first heat exchange flow channel is arranged at one end of the first heat exchange flow channel far away from the inlet and outlet end, and the first outlet of the last first heat exchange flow channel is arranged at one end of the first heat exchange flow channel near the inlet and outlet end.
Preferably, the second heat exchange flow channel comprises a second inlet and a second outlet, the second inlets of the second heat exchange flow channels are connected in parallel and then communicated with the liquid inlet flow channel, and the second outlets of the second heat exchange flow channels are connected in parallel and then communicated with the liquid outlet flow channel.
Preferably, the second inlet is arranged at one end of the second heat exchange flow channel far away from the inlet and outlet end, and the second outlet is arranged at one end of the second heat exchange flow channel close to the inlet and outlet end.
Preferably, the liquid cooling plate is further provided with an empty flow channel, and the empty flow channel is not communicated with the cooling flow channel.
Preferably, the depth of the cooling flow channel is 4 times of the thickness of the liquid cooling plate.
Preferably, the maximum width value of the cooling flow channel is less than 25mm.
The utility model also discloses a cooling system, including foretell liquid cooling board.
The utility model also discloses a battery, including foretell cooling system.
After adopting above-mentioned technical scheme, have following beneficial effect:
in the application, the first heat exchange flow channel group and the second heat exchange flow channel group are connected in parallel, cooling liquid can be respectively and independently input/output into/from the first heat exchange flow channel group and the second heat exchange flow channel group, so that the cooling effect of the first heat exchange area and the second heat exchange area is better, meanwhile, as the multiple groups of first heat exchange flow channels in the first heat exchange area close to the inlet and the outlet are connected in series, the flow resistance of the cooling liquid in the second heat exchange area is reduced, so that the flow resistance of the first heat exchange area and the flow resistance of the second heat exchange area are balanced, further, the flow of the first heat exchange area and the flow of the second heat exchange area are balanced, so that the first heat exchange area and the second heat exchange area can have approximate cooling effect, further, the cooling of the liquid cooling plate is more balanced, and the cooling effect is better.
Drawings
The disclosure of the present application will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
fig. 1 is a schematic view of the overall structure of a liquid cooling plate according to one embodiment of the present invention;
fig. 2 is a schematic view illustrating the flow direction of the cooling liquid in the liquid cooling plate according to one embodiment of the present invention.
Reference numerals comparison table:
an inlet and outlet end 1;
liquid inlet flow channel 2: a liquid inlet 21;
a liquid outlet flow passage 3: a liquid outlet 31, a third heat exchange area 32 and a T-shaped flow passage 321;
first heat exchange flow channel group 4: a first heat exchange flow channel 41, a first branch flow channel 410, a first inlet 411, a first outlet 412, a first inlet confluence flow channel 413 and a first outlet confluence flow channel 414;
the second heat exchange flow channel group 5: a second heat exchange flow channel 51, a second branch flow channel 510, a second inlet 511, a second outlet 512, a second inlet confluence flow channel 513 and a second outlet confluence flow channel 514;
an empty flow channel 6.
Detailed Description
Embodiments of the present application are further described below with reference to the accompanying drawings.
It is easily understood that according to the technical solutions of the present application, those skilled in the art can substitute various structures and implementations without changing the spirit of the present application. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present application, and should not be construed as limiting or restricting the technical solutions of the present application in their entirety.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The foregoing is to be understood as belonging to the specific meanings in the present application as appropriate to the person of ordinary skill in the art.
The utility model discloses a liquid cooling plate in one of the embodiments, as shown in fig. 1, including the cooling flow passage, the cooling flow passage includes the feed liquor flow passage 2, goes out liquid flow passage 3 and heat transfer area, the feed liquor flow passage 2 includes inlet 21, goes out liquid flow passage 3 includes liquid outlet 31, the liquid cooling plate is equipped with business turn over end 1, inlet 21 and liquid outlet 31 set up in business turn over end 1;
the heat exchange area comprises a first heat exchange area and a second heat exchange area, and the first heat exchange area is positioned between the inlet and outlet end 1 and the second heat exchange area;
the first heat exchange area comprises a first heat exchange runner group 4, the first heat exchange runner group 4 comprises a plurality of groups of first heat exchange runners 41 arranged side by side, and the plurality of groups of first heat exchange runners 41 are connected in series;
the second heat exchange area comprises a second heat exchange runner set 5, the second heat exchange runner set 5 comprises a plurality of groups of second heat exchange runners 51 arranged in parallel, and the plurality of groups of second heat exchange runners 51 are connected in parallel;
the liquid inlet flow channel 2 is respectively connected with the first heat exchange flow channel group 4 and the second heat exchange flow channel group 5 in parallel, and the liquid outlet flow channel 3 is respectively connected with the first heat exchange flow channel group 4 and the second heat exchange flow channel group 5 in parallel.
In the prior art, the first heat exchange region is close to the inlet and outlet end 1, and the second heat exchange region is far away from the inlet and outlet end 1, so that the flow resistance of the first heat exchange region is smaller than that of the second heat exchange region, and the flow uniformity of the first heat exchange region and the flow uniformity of the second heat exchange region are poor, so that the cooling effect difference of the first heat exchange region and the second heat exchange region is large, and the integral cooling uniformity of the liquid cooling plate is influenced.
In this application, as shown in fig. 1 and fig. 2, the first heat exchange flow channel group 4 includes a plurality of first heat exchange flow channels 41, the plurality of first heat exchange flow channels 41 are arranged at intervals in the width direction of the liquid-cooled plate, the second heat exchange flow channel group 5 includes a plurality of second heat exchange flow channels 51, and the plurality of second heat exchange flow channels 51 are arranged at intervals in the width direction of the liquid-cooled plate. The first heat exchange flow channel group 4 and the second heat exchange flow channel group 5 are respectively arranged in the length direction of the liquid cooling plate, and the distance between the first heat exchange flow channel group and the inlet and outlet end 1 is smaller than the distance between the second heat exchange flow channel group 5 and the inlet and outlet end 1.
As shown in fig. 1 and fig. 2, the liquid outlet channel 3 is disposed in the middle of the liquid cooling plate, the plurality of first heat exchange channels 41 are respectively disposed on two sides of the liquid outlet channel 3, and the number of the first heat exchange channels 41 on the two sides is equal, so that the cooling effects on two sides of the first heat exchange area are the same. The plurality of second heat exchange flow channels 51 are respectively arranged at two sides of the liquid outlet flow channel 3, and the number of the second heat exchange flow channels 51 at two sides is equal, so that the cooling effect at two sides of the second heat exchange area is consistent. The liquid inlet flow channel 2 is respectively arranged at the left side and the right side of the liquid cooling plate and is respectively connected with the first heat exchange flow channel 41 and the second heat exchange flow channel 51 at the left side and the right side in parallel, and the liquid inlet flow channel 2, the liquid outlet flow channel 3, the first heat exchange flow channel 41 and the second heat exchange flow channel 51 are respectively arranged in parallel.
Still further, as shown in fig. 1, each first heat exchanging flow channel 41 includes a plurality of first branch flow channels 410 arranged in parallel and at intervals, wherein the plurality of first branch flow channels 410 are connected in parallel at the inlet and the outlet, that is, the inlets of the plurality of first branch flow channels 410 are integrally arranged together, the outlets of the plurality of first branch flow channels 410 are integrally arranged together, the cooling liquid is input into the plurality of first branch flow channels 410 through the liquid inlet flow channel 2, and flows from the inlets to the outlets of the first branch flow channels 410 and flows out from the liquid outlet flow channel 3, so as to achieve cooling.
As shown in fig. 1, each of the second heat exchanging channels 51 includes a plurality of second branch channels 510 arranged in parallel and at intervals, wherein the plurality of second branch channels 510 are connected in parallel at the inlet and the outlet, that is, the plurality of second branch channels 510 are integrally arranged with the inlet, the outlets of the plurality of second branch channels 510 are integrally arranged, the cooling liquid is input into the plurality of second branch channels 510 through the liquid inlet channel 2, and flows from the inlet to the outlet of the second branch channels 510 and flows out from the liquid outlet channel 3, so as to achieve cooling.
In the present application, as shown in fig. 2, the liquid inlet 21 and the liquid outlet 31 are integrally disposed at the inlet and outlet 1, wherein the inlet and outlet 1 is disposed at an end of the liquid cooling plate, the liquid inlet 21 is used for inputting the cooling liquid into the cooling flow channel, and the liquid outlet 31 is used for flowing the cooling liquid out of the cooling flow channel. The cooling liquid is input from the liquid inlet 21 and respectively enters the first heat exchange flow channel group 4 in the first heat exchange area and the second heat exchange flow channel group 5 in the second heat exchange area, and flows out from the liquid outlet 31 through the liquid outlet flow channel 3. The first heat exchange flow channel 41 and the second heat exchange flow channel 51 are respectively connected in parallel with the liquid inlet flow channel 2, so that the cooling liquid can respectively enter the first heat exchange flow channel 41 and the second heat exchange flow channel 51 and flow through the first heat exchange flow channel 41 and the second heat exchange flow channel 51 to realize cooling. The first heat exchange runner group and the second heat exchange runner group are connected in parallel, and cooling liquid can be respectively and independently input/output into/from the first heat exchange runner group and the second heat exchange runner group, so that the cooling effect of the first heat exchange area and the second heat exchange area is better. The plurality of first heat exchange flow channels 41 in the first heat exchange area close to the inlet and outlet end 1 are connected in series, so that the flow resistance of the cooling liquid in the first heat exchange area is increased, the flow rate is reduced, the plurality of second heat exchange flow channels 51 in the second heat exchange area far away from the inlet and outlet end 1 are connected in parallel, so that the flow resistance of the cooling liquid in the second heat exchange area is reduced, the flow rate is increased, the flow rates in the first heat exchange area and the second heat exchange area can be balanced, namely the first heat exchange area and the second heat exchange area can have similar cooling effects, so that the cooling of the liquid cooling plate is more balanced, and the cooling effect is better.
In addition, as the utility model discloses a preferred embodiment, as shown in fig. 1, first heat transfer is regional including a first heat transfer runner group 4, and the second heat transfer is regional including a second heat transfer runner group 5, and a plurality of first heat transfer runners 41 in first heat transfer runner group 4 establish ties promptly, and second heat transfer runner group 5 in the second heat transfer runner group 5 is parallelly connected to make the regional flow balance of first heat transfer and second heat transfer.
Optionally, the first heat exchange region includes one first heat exchange flow channel group 4, the second heat exchange region includes 2 or more than 2 second heat exchange flow channel groups 5, and the second heat exchange flow channels 51 in each second heat exchange flow channel group 5 in the second heat exchange region are connected in parallel.
Optionally, the first heat exchange area includes 2 or more than 2 first heat exchange flow channel groups 4, the first heat exchange flow channels 41 in each first heat exchange flow channel group 4 are connected in series, and the second heat exchange area includes 1 second heat exchange flow channel group 5.
Optionally, the first heat exchange region includes 2 or more than 2 first heat exchange flow channel groups 4, the first heat exchange flow channels 41 in each first heat exchange flow channel group 4 are connected in series, the second heat exchange region includes 2 or more than 2 second heat exchange flow channel groups 5, and the second heat exchange flow channels 51 in each second heat exchange flow channel group 5 in the second heat exchange region are connected in parallel.
Further, the liquid inlet flow channel 2 and the liquid outlet flow channel 3 can both play a role in heat exchange and temperature reduction, wherein when cooling liquid flows through the liquid inlet flow channel 2, the area covered by the liquid inlet flow channel 2 can be cooled, and when the cooling liquid flows through the liquid outlet flow channel 3, the area covered by the liquid outlet flow channel 3 can be cooled.
Still further, as shown in fig. 1, the heat exchanger further includes a third heat exchange area 32, the third heat exchange area 32 is communicated with the liquid outlet channel 3, the cooling liquid in the liquid outlet channel 3 can flow to the third heat exchange area 32, and the third heat exchange area 32 can be cooled.
Specifically, the third heat exchange area 32 includes a T-shaped flow passage 321 disposed at the other end of the liquid cooling plate away from the inlet/outlet end 1, the T-shaped flow passage 321 is communicated with the liquid outlet flow passage 3, and the T-shaped flow passage 321 is used for dissipating heat from the electric devices in the battery.
In some embodiments of the present invention, as shown in fig. 1, the first heat exchanging channel 41 includes a first inlet 411 and a first outlet 412, the first inlet 411 of the first heat exchanging channel 41 is communicated with the liquid inlet channel 2, the first outlet 412 of the last first heat exchanging channel 41 is communicated with the liquid outlet channel 3, and the first outlet 412 of the adjacent first heat exchanging channel 41 is communicated with the first inlet 411.
Further, as shown in fig. 1, a first inlet converging flow passage 413 is disposed at one side of an inlet in each first heat exchange flow passage 41, inlets of a plurality of first branch flow passages 410 in each first heat exchange flow passage 41 are connected in parallel through the first inlet converging flow passage 413, a first outlet converging flow passage 414 is disposed at one side of an outlet in each first heat exchange flow passage 41, and outlets of the plurality of first branch flow passages 410 are connected in parallel through the first outlet converging flow passage 414, wherein a first inlet 411 is disposed in the first inlet converging flow passage 413, and a first outlet 412 is disposed in the first outlet converging flow passage 414. The first inlet 411 and the first outlet 412 between the adjacent first heat exchange flow channels 41 are communicated with each other, so that the plurality of first heat exchange flow channels 41 are connected in series. The cooling liquid is input into the first heat exchange flow channel 41 through the liquid inlet flow channel 2, and is respectively input into the first branch flow channels 410 through the first inlet converging flow channel 413 in the first liquid inlet flow channel 2, the cooling liquid is converged from the first outlet converging flow channel 414 and then output to the next first heat exchange flow channel 41, and so on until the cooling liquid is output to the liquid outlet flow channel 3 from the last first heat exchange flow channel 41, through the arrangement, the first heat exchange flow channels 41 can be connected in series, the flow resistance in the first heat exchange area is increased, and the flow rate is reduced.
In some embodiments of the present invention, as shown in fig. 1, the first inlet 411 of the first heat exchanging flow channel 41 is disposed at one end of the first heat exchanging flow channel 41 far away from the inlet/outlet end 1, and the first outlet 412 of the last first heat exchanging flow channel 41 is disposed at one end of the first heat exchanging flow channel 41 near the inlet/outlet end 1. The arrangement can prolong the flowing distance of the cooling liquid in the liquid inlet flow channel 2 and the liquid outlet flow channel 3, so that the cooling liquid can play a better cooling effect in the liquid inlet flow channel 2 and the liquid outlet flow channel 3.
In some embodiments of the present invention, as shown in fig. 1, the second heat exchanging channel 51 includes a second inlet 511 and a second outlet 512, the second inlets 511 of the second heat exchanging channels 51 are connected in parallel and communicated with the liquid inlet channel 2, and the second outlets 512 of the second heat exchanging channels 51 are connected in parallel and communicated with the liquid outlet channel 3.
Further, as shown in fig. 1, a second inlet converging flow passage 513 is provided at an inlet side of the second branch flow passage 510, inlets of the plurality of second branch flow passages 510 in the plurality of second heat exchange flow passages 51 are connected in parallel and integrated through the second inlet converging flow passage 513, and a second inlet 511 is provided in the second inlet converging flow passage 513 and communicates with the inlet flow passage 2. A second outlet confluence flow channel 514 is arranged at one side of the outlet of the second branch flow channel 510, the outlets of the second branch flow channels 510 in the second heat exchange flow channels 51 are connected in parallel and integrated together through the second outlet confluence flow channel 514, and the second outlet 512 is arranged in the second outlet confluence flow channel 514 and is communicated with the liquid outlet flow channel 3. The cooling liquid is input into the second inlet converging flow channel 513 through the liquid inlet flow channel 2, and is respectively conveyed into each second heat exchange flow channel 51 through the second inlet converging flow channel 513, and the cooling liquid is converged through the second outlet converging flow channel 514 and then is output into the liquid outlet flow channel 3, so that the plurality of second heat exchange flow channels 51 are connected in parallel, and the flow resistance of the cooling liquid in the second heat exchange area can be reduced and the flow rate can be increased through the arrangement.
This application is close to the regional flow resistance of the first heat transfer of business turn over end 1 through the mode increase of establishing ties for the regional flow of first heat transfer reduces, reduces the regional flow resistance of the second heat transfer of keeping away from business turn over end 1 through parallelly connected mode, makes the regional flow increase of second heat transfer, and then realizes the regional flow balance of first heat transfer and second heat transfer, makes the regional flow balance of first heat transfer and second heat transfer, thereby the cooling effect in two regions is approximate balanced.
In some embodiments of the present invention, as shown in fig. 1, the second inlet 511 is disposed at one end of the second heat exchanging channel 51 far away from the inlet/outlet end 1, and the second outlet 512 is disposed at one end of the second heat exchanging channel 51 near the inlet/outlet end 1. The flow distance of the cooling liquid in the liquid inlet flow channel 2 and the liquid outlet flow channel 3 can be prolonged through the arrangement, so that the cooling liquid can play a better cooling effect in the liquid inlet flow channel 2 and the liquid outlet flow channel 3.
In some embodiments of the present invention, as shown in fig. 1, an empty flow channel 6 is further disposed on the liquid cooling plate, and the empty flow channel 6 is not communicated with the cooling flow channel. The empty flow passages 6 are arranged in a plurality of modes, and the liquid cooling plate can be prevented from deforming during brazing and laser welding in the machining process of the liquid cooling plate through the empty flow passages 6.
In some embodiments of the present invention, the depth of the cooling channel is 4 times the thickness of the liquid cooling plate.
Preferably, the thickness of the liquid cooling plate is 1mm, the depth of the cooling flow channel is set to be 4mm, the flow resistance of the cooling flow channel can be reduced by increasing the depth of the cooling flow channel, and the flow resistance and the flow uniformity in the cooling flow channel are guaranteed to be in the optimal range.
In some embodiments of the present invention, the maximum width of the cooling flow channel is less than 25mm.
Preferably, the maximum width of the cooling flow channel is set to be 25mm, and the width of the cooling flow channel is optimized, so that the processing of the liquid cooling plate can consider both a 3-series aluminum profile + brazing welding process and a high-strength aluminum profile and laser welding process.
As an embodiment of the present invention, as shown in fig. 1 and fig. 2, the liquid cooling plate includes a liquid cooling plate, and a cooling channel is disposed on the liquid cooling plate, wherein the cooling channel includes a liquid inlet channel 2, a liquid outlet channel 3 and a heat exchange area, wherein the liquid inlet 21 of the liquid inlet channel 2 and the liquid outlet 31 of the liquid outlet channel 3 are integrally disposed at the inlet and outlet end 1, and the inlet and outlet end 1 is disposed at the end of the liquid cooling plate.
The liquid inlet flow channel 2 is arranged on the left side and the right side of the liquid cooling plate along the length direction of the liquid cooling plate, and the liquid outlet flow channel 3 is arranged in the middle of the liquid cooling plate along the length direction of the liquid cooling plate. The heat exchange area comprises a first heat exchange area and a second heat exchange area, wherein the first heat exchange area is arranged close to the inlet and outlet end 1, the second heat exchange area is arranged far away from the inlet and outlet end 1, and namely the distance between the first heat exchange area and the inlet and outlet end 1 is smaller than that between the second heat exchange area and the inlet and outlet end 1.
Further, the first heat exchange area comprises a first heat exchange flow channel group 4, and the second heat exchange area comprises a second heat exchange flow channel group 5. The first heat exchange flow channel group 4 comprises a plurality of groups of first heat exchange flow channels 41 arranged side by side, the plurality of groups of first heat exchange flow channels 41 are respectively arranged at two sides of the liquid outlet flow channel 3, and the number of the first heat exchange flow channels 41 at two sides of the liquid outlet flow channel 3 is equal. The sets of first heat exchange flow channels 41 on each side are connected in series. The second hot runner group comprises a plurality of groups of second heat exchange flow channels 51 arranged side by side, the plurality of groups of second heat exchange flow channels 51 are respectively arranged at two sides of the liquid outlet flow channel 3, and the number of the second heat exchange flow channels 51 at two sides of the liquid outlet flow channel 3 is equal. The sets of second heat exchange flow channels 51 on each side are connected in parallel. The first heat exchange flow passage 41, the second heat exchange flow passage 51, the liquid inlet flow passage 2 and the liquid outlet flow passage 3 are parallel to each other.
Each group of first heat exchange flow channels 41 is composed of a plurality of first branch flow channels 410, inlets of the plurality of first branch flow channels 410 are connected in parallel through a first inlet converging flow channel 413 to form a first inlet 411, outlets of the plurality of first branch flow channels 410 are connected in parallel through a first outlet converging flow channel 414 to form a first outlet 412, wherein the first inlet 411 of the first heat exchange flow channel 41 is communicated with the liquid inlet flow channel 2, the first outlet 412 of the last first heat exchange flow channel 41 is communicated with the liquid outlet flow channel 3, and the first inlet 411 and the first outlet 412 of the adjacent first heat exchange flow channel 41 are sequentially connected, so that the plurality of first heat exchange flow channels 41 are connected in series.
Each group of the second heat exchange flow channels 51 is composed of a plurality of second branch flow channels 510, inlets of the plurality of second branch flow channels 510 in the plurality of groups of the second heat exchange flow channels 51 are connected in parallel through a second inlet converging flow channel 513 to form a second inlet 511, the second inlet 511 is communicated with the liquid inlet flow channel 2, outlets of the plurality of second branch flow channels 510 in the plurality of groups of the second heat exchange flow channels 51 are connected in parallel through a second outlet converging flow channel 514 to form a second outlet 512, and the second outlet 512 is communicated with the liquid outlet flow channel 3, so that the plurality of groups of the second heat exchange flow channels 51 are connected in parallel.
In addition, the liquid cooling plate is also provided with an empty runner 6, the empty runner 6 is not communicated with the cooling runner, and the liquid cooling plate can be prevented from deforming during brazing and laser welding in the machining process of the liquid cooling plate by arranging the empty runner 6. The depth of the cooling flow channel is 4 times of the thickness of the liquid cooling plate, the flow resistance of the cooling flow channel can be reduced, the flow resistance and the flow uniformity in the cooling flow channel are guaranteed to be in the optimal range, the maximum width of the cooling flow channel is set to be 25mm, and the width of the cooling flow channel is optimized, so that the liquid cooling plate can be processed by taking 3 series aluminum profiles and a brazing welding process and a high-strength aluminum profile and laser welding process into consideration.
In the application, the multiple groups of first heat exchange flow channels 41 in the first heat exchange region are connected in series, so that the flow resistance of the cooling liquid in the first heat exchange region is increased, the flow rate is reduced, the multiple groups of second heat exchange flow channels 51 in the second heat exchange region are connected in parallel, the flow resistance of the cooling liquid in the second heat exchange region is reduced, the flow rate is increased, further, the flow rates in the first heat exchange region and the second heat exchange region can be balanced, namely, the first heat exchange region and the second heat exchange region can have similar cooling effects, further, the flow rates of the cooling liquid in the liquid cooling plate are more balanced, and the cooling effect is better.
The utility model also discloses a cooling system, including foretell liquid cooling board.
The utility model also discloses a battery, including foretell cooling system.
What has been described above is merely the principles and preferred embodiments of the present application. It should be noted that, for a person skilled in the art, several other modifications can be made on the basis of the principle of the present application, and these should also be considered as the scope of protection of the present application.
Claims (10)
1. The utility model provides a liquid cooling board, includes cooling flow channel, cooling flow channel includes feed liquor runner (2), goes out liquid runner (3) and heat transfer region, feed liquor runner (2) include inlet (21), it includes liquid outlet (31) to go out liquid runner (3), liquid cooling board is equipped with business turn over end (1), inlet (21) with liquid outlet (31) set up business turn over end (1), its characterized in that:
the heat exchange area comprises a first heat exchange area and a second heat exchange area, and the first heat exchange area is positioned between the inlet and outlet end (1) and the second heat exchange area;
the first heat exchange area comprises a first heat exchange flow channel group (4), the first heat exchange flow channel group (4) comprises a plurality of groups of first heat exchange flow channels (41) which are arranged side by side, and the plurality of groups of first heat exchange flow channels (41) are connected in series;
the second heat exchange area comprises a second heat exchange flow channel group (5), the second heat exchange flow channel group (5) comprises a plurality of groups of second heat exchange flow channels (51) which are arranged in parallel, and the plurality of groups of second heat exchange flow channels (51) are connected in parallel;
the liquid inlet flow channel (2) is connected with the first heat exchange flow channel group (4) and the second heat exchange flow channel group (5) in parallel respectively, and the liquid outlet flow channel (3) is connected with the first heat exchange flow channel group (4) and the second heat exchange flow channel group (5) in parallel respectively.
2. A liquid cooled plate according to claim 1, wherein said first heat exchanging flow channels (41) comprise a first inlet (411) and a first outlet (412), said first inlet (411) of a first one of said first heat exchanging flow channels (41) being in communication with said inlet flow channel (2), said first outlet (412) of a last one of said first heat exchanging flow channels (41) being in communication with said outlet flow channel (3), said first outlet (412) of an adjacent one of said first heat exchanging flow channels (41) being in communication with said first inlet (411).
3. A liquid cooled plate according to claim 2, wherein said first inlet (411) of a first one of said first heat exchanging flow channels (41) is arranged at an end of said first heat exchanging flow channel (41) remote from said inlet/outlet end (1), and said first outlet (412) of a last one of said first heat exchanging flow channels (41) is arranged at an end of said first heat exchanging flow channel (41) close to said inlet/outlet end (1).
4. A liquid cooled plate according to claim 1, wherein said second heat exchanging flow path (51) comprises a second inlet (511) and a second outlet (512), said second inlets (511) of said second heat exchanging flow paths (51) being connected in parallel and communicating with said inlet flow path (2), and said second outlets (512) of said second heat exchanging flow paths (51) being connected in parallel and communicating with said outlet flow path (3).
5. A liquid-cooled plate according to claim 4, wherein the second inlet (511) is arranged at an end of the second heat exchanging flow channel (51) remote from the access end (1), and the second outlet (512) is arranged at an end of the second heat exchanging flow channel (51) close to the access end (1).
6. The liquid cooling plate of claim 1, further comprising an empty channel (6), wherein the empty channel (6) is not in communication with the cooling channel.
7. The liquid cooling plate of claim 1, wherein the depth of the cooling flow channel is 4 times the thickness of the liquid cooling plate.
8. The liquid cold plate of claim 1, wherein said cooling flow channels have a maximum width dimension of less than 25mm.
9. A cooling system comprising a liquid-cooled plate according to any of claims 1 to 8.
10. A battery comprising the cooling system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221345912.9U CN218274796U (en) | 2022-05-31 | 2022-05-31 | Liquid cooling plate, cooling system and battery |
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| CN202221345912.9U CN218274796U (en) | 2022-05-31 | 2022-05-31 | Liquid cooling plate, cooling system and battery |
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