CN218731270U - Liquid cooling board and battery package tray - Google Patents

Abstract

A liquid cooling plate and a battery pack tray are provided, wherein the liquid cooling plate comprises a spoiler and a temperature equalizing plate, a flow channel is formed on the flow channel plate, the flow channel is provided with a flow dividing area, a main flow area and a converging area, the flow channel is provided with a liquid inlet and a liquid outlet, the flow dividing area is communicated with the liquid inlet and the main flow area, the converging area is communicated with the main flow area and the liquid outlet, a cooling medium enters the flow channel from the liquid inlet, one path of the cooling medium is divided into multiple paths in the flow dividing area, and the multiple paths of the cooling medium are converged into one path in the converging area; a flow disturbing structure is arranged in the flow dividing area and/or the converging area; the temperature equalizing plate is covered on the flow passage plate to seal the flow passage, the cooling medium meets the turbulent flow structure when flowing in the flow passage to generate turbulent flow, on one hand, the heat transferred to the temperature equalizing plate and the flow passage plate is transferred to the cooling medium, on the other hand, the heat exchange inside the cooling medium is strengthened, so that the heat can be more quickly and sufficiently transferred to the cooling medium, the heat is taken away through the flowing of the cooling medium, the heat dissipation effect is improved, and the problem of unsatisfactory heat dissipation effect is solved.

Description

Liquid cooling board and battery package tray

Technical Field

The utility model relates to a battery package heat dissipation technical field, concretely relates to liquid cooling board and battery package tray.

Background

The battery pack heat dissipation is an important problem influencing the development of the electric automobile, and the liquid cooling plate is mainly adopted for heat dissipation at present. However, the current liquid cooling plate has the defect that the heat dissipation effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a liquid cooling board and battery package tray can promote the radiating effect, solves the unsatisfactory problem of radiating effect.

For realizing the purpose of the utility model, the utility model provides a following technical scheme:

in a first aspect, the present invention provides a liquid cooling plate, including: the cooling medium enters the flow channel from the liquid inlet, is divided into a plurality of paths in the dividing area, and is converged into one path in the converging area; a turbulent flow structure is arranged in the flow splitting area and/or the converging area; and the temperature equalizing plate is covered on the runner plate to seal the runner.

In one embodiment, the runner plate includes the heating panel and connects the end plate of heating panel one side, the subregion with the district that assembles all is located simultaneously the heating panel with the end plate, the mainstream district is located the heating panel, the inlet with the liquid outlet all is located the end plate.

In one embodiment, the end plate and the heat dissipation plate are disposed in a non-coplanar manner, the runner plate further includes a connection plate, two ends of the connection plate are smoothly connected to the heat dissipation plate and the end plate, and the connection plate and the heat dissipation plate form an included angle.

In one embodiment, a plurality of the flow disturbing structures are arranged at intervals along the extension direction of the flow dividing region and/or the converging region.

In one embodiment, the flow perturbation structure comprises at least one of the following structures: cylinder, straight-sided elliptic cylinder, arc cylinder.

In one embodiment, the flow dividing region is provided with the circular columns and the straight-edge elliptic columns at intervals in sequence from the liquid inlet to the main flow region.

In one embodiment, the flow-dividing region is arranged from the liquid inlet to the main flow region, and the flow-disturbing structures are at least partially spaced in the following manner: the cylinder, the straight-sided elliptic cylinder.

In one embodiment, the runner plate is provided with a plurality of strip-shaped columnar structures in the main flow area, so that the runner forms a plurality of sub-runners, and the flow disturbing structures are arranged in front of and/or behind the sub-runners.

In one embodiment, a plurality of the sub-channels are in a serial and/or parallel configuration.

In a second aspect, the present invention provides a battery pack tray, comprising a tray body and a liquid cooling plate according to any one of the various embodiments of the first aspect, wherein the liquid cooling plate is fixed to the tray body.

Including runner plate and samming board through setting up the liquid cooling plate, the runner plate is formed with the runner, the samming board lid is established and is sealed the runner on the runner plate, the subregion and/or the district that assembles are provided with the vortex structure in the runner, cooling medium meets and produces the torrent with the vortex structure when flowing in the runner, the heat conduction to samming board and runner plate on the one hand conducts cooling medium, the heat transfer of cooling medium inside on the other hand is strengthened, make the heat can be faster and abundant conduction cooling medium, flow through cooling medium and take away the heat, the radiating effect has been promoted, the unsatisfactory problem of radiating effect has been solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a perspective view of a battery pack tray of an embodiment;

FIG. 2 is a top view of an embodiment of a liquid cooled panel;

FIG. 3 is an enlarged cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a side view of a liquid cooled panel of an embodiment;

FIG. 5 is a partial enlarged view at B in FIG. 4;

FIG. 6 is a bottom perspective view of a battery pack tray of an embodiment;

fig. 7 is an enlarged sectional view taken along the direction C-C in fig. 6.

Description of reference numerals:

10-a tray body, 11-a frame, 111-a first longitudinal plate, 112-a first transverse plate, 113-a second longitudinal plate, 114-a second transverse plate, 115-a circumscribed structure, 12-a middle plate, 13-an accommodating space, 131-an electric core cavity, 132-an accessory cavity and 14-a lifting lug;

20-liquid cooling plate, 21-flow passage plate, 211-heat dissipation plate, 212-end plate, 213-connecting plate, 22-temperature equalizing plate, 23-liquid inlet pipe joint, 24-liquid outlet pipe joint, 251-flow passage, 252-liquid inlet, 253-liquid outlet, 254-turbulence structure, 255-strip-shaped columnar structure, 256-sub-flow passage, 541-cylinder, 542-straight-edge elliptic column, 543-arc column, 257-shunt area, 258-main flow area and 259-convergence area.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1, an embodiment of the present invention provides a battery pack tray, which includes a tray body 10 and a liquid cooling plate 20 provided in an embodiment of the present invention, wherein the liquid cooling plate 20 is fixed to the tray body 10.

The tray body 10 encloses an accommodating space 13, and the accommodating space 13 accommodates a battery (not shown).

Optionally, the tray body 10 includes a frame 11, the frame 11 is in an annular shape connected end to end, and encloses to form the accommodating space 13, and the upper and lower openings of the accommodating space 13, and the liquid cooling plate 20 is connected to the frame 11 and seals the opening above or the opening below the liquid cooling plate. Alternatively, a liquid cooling plate 20 may be provided on each of the upper and lower sides of the frame 11 to close both the upper and lower openings of the accommodating space 13.

Optionally, the bezel 11 includes a main frame and an auxiliary frame, the main frame includes two opposite first longitudinal plates 111 and a first transverse plate 112 connected to one end of the two first longitudinal plates 111, and the three surround to form a square cavity with an opening at the opposite side of the first transverse plate 112, for example, the three form a shape of "21274", and one end of the two first longitudinal plates 111 away from the first transverse plate 112 is open. The auxiliary frame comprises two opposite second longitudinal plates 113 and a second transverse plate 114 connected to one end of the two second longitudinal plates 113, the two second longitudinal plates 113 and the second transverse plate 114 are surrounded to form a square cavity with an opening at the opposite side of the second transverse plate 114, for example, the three form a shape of '21274', and one end of the two second longitudinal plates 113, which is far away from the second transverse plate 114, is opened. The main frame and the sub frame are butted at one ends of the openings, namely, the two first longitudinal plates 111 and the two second longitudinal plates 113 are butted, so that the accommodating space 13 is formed by enclosing. The first longitudinal plate 111 and the second longitudinal plate 113 can be connected by any feasible means such as screwing, welding, riveting, gluing, etc.

Optionally, the tray body 10 further includes a middle plate 12, two ends of the middle plate 12 are respectively connected to the two second longitudinal plates 113, and the middle plate 12 is located between the first horizontal plate 112 and the second horizontal plate 114 to divide the accommodating space 13 into the core cavity 131 and the accessory cavity 132. The main frame encloses the core cavity 131 and the sub-frame portion may also enclose a portion of the core cavity 131 and the sub-frame encloses the accessory cavity 132. The battery includes a cell (not shown) received in the cell cavity 131 and associated accessories (not shown) received in the accessory cavity 132.

Optionally, when the battery cell is accommodated in the battery cell cavity 131, a terminal post (not shown) of the battery cell faces one side of the sub-frame, so as to be connected to accessories such as a copper bar in the accessory cavity 132.

Optionally, external structures 115 such as holes, ports, etc. may be provided on the second cross plate 114 to facilitate passage of components such as wiring harnesses therethrough and into the accessory cavity 132.

Optionally, the outer side of the frame 11 may be further provided with lifting lugs 14, and the lifting lugs 14 may be substantially uniformly arranged around the frame 11. The lifting lugs 14 arranged on the two first longitudinal beams can be the same in number, and can be symmetrically arranged or staggered.

Optionally, the number of the lifting lugs 14 arranged on the two first longitudinal beams is different, and the lifting lugs are asymmetrically arranged. For example, fig. 1 shows that one of the first longitudinal plates 111 is provided with 2 lifting lugs 14, the other first longitudinal plate 111 is provided with 3 lifting lugs 14, the first transverse plate 112 is provided with 2 lifting lugs 14, and the two second longitudinal plates 113 are each provided with 1 lifting lug 14.

When the pallet is mounted on the vehicle, the shackle 14 is fixedly coupled to a vehicle body (not shown) of the vehicle, for example, the shackle 14 coupled to the first vertical plate 111 and the second vertical plate 113 is fixedly coupled to a side member (not shown) of the vehicle body, and the shackle 14 coupled to the first horizontal plate 112 is fixedly coupled to a cross member (not shown) of the vehicle body.

The tray body 10 may be made of aluminum or steel, without limitation.

The connection between the liquid cooling plate 20 and the tray body 10 may be any feasible manner, such as screwing, welding, riveting, or gluing, without limitation.

The utility model discloses battery package tray is through having adopted the embodiment of the utility model provides a liquid cooling plate 20 can promote the radiating effect, solves the unsatisfactory problem of radiating effect of conventional liquid cooling plate 20, introduces in detail below.

Referring to fig. 2 and 3, an embodiment of the present invention provides a liquid cooling plate 20, which includes a flow channel plate 21 and a temperature-uniforming plate 22, wherein the flow channel plate 21 is formed with a flow channel 251, and the temperature-uniforming plate 22 is covered on the flow channel plate 21 to close the flow channel 251, so that a cooling medium can flow in the flow channel 251.

The flow channel 251 may be formed by grooving the surface of the flow channel plate 21, integrally stamping, or the like, the flow channel 251 may be recessed with respect to the surface of the flow channel plate 21, the temperature equalization plate 22 may be disposed on the surface of the flow channel plate 21, and the flow channel 251 may be closed on one side of the surface of the flow channel plate 21. The cooling medium may be water, cooling liquid, etc., without limitation.

The temperature equalization plate 22 is used to contact the battery, that is, the temperature equalization plate 22 is located on the side of the flow channel plate 21 facing the accommodating space 13 of the tray body 10. The vapor chamber 22 serves to uniformly disperse heat and prevent local high temperature. The material of the vapor chamber 22 can be a material with high thermal conductivity, such as aluminum, copper, etc.

As shown in fig. 2, the area of the flow channel plate 21 is larger than that of the temperature-uniforming plate 22, the temperature-uniforming plate 22 is covered on the flow channel plate 21, the orthographic projection of the temperature-uniforming plate 22 on the flow channel plate 21 is entirely positioned inside the flow channel plate 21, and the peripheral edges of the flow channel plate 21 and the peripheral edges of the temperature-uniforming plate 22 have a certain distance. As shown in fig. 6, the peripheral edge of the flow channel plate 21 may be connected to the tray body 10 by forming a notch or the like.

Referring to fig. 6, the flow passage 251 has a diverging region 257, a main flow region 258, and a converging region 259, the flow passage having an inlet 252 and an outlet 253. The diversion area 257 communicates with the inlet and the main flow area 258, the convergence area 259 communicates with the main flow area 258 and the outlet, the cooling medium enters the flow channel from the inlet, and is divided into multiple paths in the diversion area 257, and the multiple paths are converged into one path in the convergence area 259.

The liquid inlet 252 and the liquid outlet 253 may be formed by opening holes in the flow channel plate 21 or the temperature-equalizing plate 22. A liquid inlet pipe joint 23 can be arranged at the liquid inlet 252, a liquid outlet pipe joint 24 can be arranged at the liquid outlet 253, and the liquid inlet pipe joint 23 and the liquid outlet pipe joint 24 are respectively used for being connected with a pipeline which can be communicated to the pump. The pump drives the cooling medium to flow in the pipeline, and the cooling medium is conveyed through the pipeline, enters the flow channel 251 through the liquid inlet 252, flows in the flow channel 251 and flows out of the liquid outlet 253. Optionally, inlet port 252 and outlet port 253 are interchangeable.

When the battery pack generates heat due to charging or discharging, the heat is conducted to the temperature equalizing plate 22 and the flow channel plate 21, when the cooling medium flows in the flow channel 251, the cooling medium is in contact with the temperature equalizing plate 22 and the flow channel plate 21, the heat is transferred to the cooling medium in a conduction mode, and the cooling medium guides out the heat to realize heat dissipation.

In the embodiment of the present invention, the turbulent flow structure 254 is disposed in the diversion area 257 and/or the convergence area 259. The concrete structure of vortex structure 254 does not do the restriction, and cooling medium gets into through inlet 252, meets vortex structure 254 at flow splitting area 257, and perhaps, cooling medium flows out and meets vortex structure 254 at convergence region 259 from mainstream district 258 for each position intensive mixing about cooling medium about, makes the heat can be faster conduct in cooling medium, can improve heat transfer intensity.

Optionally, the flow dividing region 257 is provided with a flow disturbing structure 254, and after entering the flow dividing region 257 through the liquid inlet 252, the cooling medium meets the flow disturbing structure 254 to generate a turbulent flow, and then flows through the main flow region 258 and the converging region 259 sequentially and flows out from the liquid outlet 253. Alternatively, the flow disturbing structure 254 may be disposed only in the converging region 259, and the cooling medium entering the flow channel 251 through the liquid inlet 252 sequentially flows through the flow dividing region 257 and the main flow region 258, meets the flow disturbing structure 254 in the converging region 259 to generate a turbulent flow, and then flows out from the liquid outlet 253. Alternatively, flow disrupting structures 254 may be provided at both the diverging region 257 and the converging region 259, with the cooling medium creating turbulence at both the diverging region 257 and the converging region 259.

Turbulence is also generated when flow directing region 257 and converging region 259 have turbulating structures 254 within channel 251 when inlet 252 and outlet 253 are interchanged, except where turbulence is generated.

The turbulent flow structure 254 is arranged in the flow splitting region 257 and/or the converging region 259 in the flow channel 251 to generate turbulent flow, and the turbulent flow structure 254 is arranged in the flow splitting region 257 and/or the converging region 259 to facilitate the arrangement of the flow channel 251, so that the structure is simple and easy to manufacture.

Alternatively, the turbulent structure 254 may be disposed at other positions of the non-flow region 257 and/or the convergence region 259 of the flow channel 251, so long as the cooling medium meets the turbulent structure 254 to generate turbulent flow, which can improve the heat dissipation effect.

The heat transfer has a plurality of modes such as convection, conduction, radiation and the like, the fluid flow can be divided into laminar flow and turbulent flow, the laminar flow is that the fluid flows along mutually parallel streamlines in a layered mode, fluids in all layers are complementarily mixed, and the heat transfer perpendicular to the flow direction is mainly carried out by means of heat conduction in the fluid, so that the heat exchange strength is low. Therefore, to enhance laminar heat exchange, it is necessary to change the flow state of the fluid, such as turbulent flow. The fluid presents turbulent flow, and the inlet speed can be increased according to the Reynolds number Re calculation formula, but the strength of a liquid cooling system or the power of a pump needs to be increased, so that the cost is higher. The embodiment of the utility model provides a through setting up vortex structure 254 can produce the torrent, the cost is lower relatively.

The embodiment of the utility model provides an in, include runner plate 21 and temperature-uniforming plate 22 through setting up liquid cold plate 20, runner plate 21 is formed with runner 251, temperature-uniforming plate 22 lid is established and is sealed runner 251 on runner plate 21, flow district 257 and/or assemble district 259 and be provided with vortex structure 254 in runner 251, cooling medium meets and produces the torrent with vortex structure 254 when flowing in runner 251, the heat that transmits temperature-uniforming plate 22 and runner plate 21 on the one hand conducts cooling medium, the inside heat transfer of cooling medium on the other hand is strengthened, make the heat can be faster and abundant conduct cooling medium, flow through cooling medium and take away the heat, the radiating effect has been promoted, the unsatisfactory problem of radiating effect has been solved.

Alternatively, as shown in fig. 2 and 5, the flow path plate 21 includes a heat dissipation plate 211 and an end plate 212 connected to one side of the heat dissipation plate 211. As shown in fig. 5 and 6, the flow channel 251 extends to the heat dissipation plate 211 through the end plate 212, the flow dividing region 257 and the converging region 259 are both located on the heat dissipation plate 211 and the end plate 212, the main flow region 258 is located on the heat dissipation plate 211, and the liquid inlet 252 and the liquid outlet 253 are both located on the end plate 212.

Referring to fig. 2 and 5, the end plate 212 and the heat dissipation plate 211 may be formed as a single body or as separate bodies and may be fixed by welding, bonding, or the like. Referring to fig. 5 and 7, the end plate 212 is at least partially located in the accessory cavity 132 and the heat dissipation plate 211 is at least partially located in the core cavity 131, for example, the end plate 212 is entirely located in the accessory cavity 132, or is partially located in the accessory cavity 132 and is partially located in the core cavity 131; the heat sink plate 211 is located entirely within the core cavity 131, or partially within the core cavity 131 and partially within the accessory cavity 132.

Referring to fig. 5 to 7, the liquid inlet 252 and the liquid outlet 253 are both located at the end plate 212, specifically, the liquid inlet 252 and the liquid outlet 253 are disposed on the temperature equalizing plate 22 corresponding to the end plate 212, so that the liquid inlet pipe joints 23 and the liquid outlet pipe joints 24 are intensively disposed at the end plate 212 and are accommodated in the accessory cavity 132, and no additional other structure is disposed at the heat dissipation plate 211, thereby forming a smooth and complete contact surface and avoiding structural interference on the battery cell in the battery cell cavity 131.

Alternatively, referring to fig. 2 to 5, the end plate 212 and the heat dissipation plate 211 are disposed non-coplanar, the flow channel plate 21 further includes connection plates 213, both ends of which are smoothly connected to the heat dissipation plate 211 and the end plate 212, and the connection plates 213 and the heat dissipation plate 211 form an included angle α.

At least one of the connection plate 213 and the end plate 212 and the heat dissipation plate 211 may be a single-body structure, or may be a separate structure and may be connected and fixed by a process such as welding, gluing, or the like. In one embodiment, the flow channel plate 21 is formed by stamping a single plate, and forms a three-stage structure of the heat dissipation plate 211, the end plate 212 and the connection plate 213.

Similar to the structure of the runner plate 21, the temperature-equalizing plate 22 may also be divided into three-segment structures, so that the temperature-equalizing plate 22 can be tightly attached to the runner plate 21 to always close the runner 251.

The end plate 212 and the heat dissipation plate 211 are arranged in a non-coplanar manner, so that a staggered structure is formed in space between the end plate 212 and the heat dissipation plate 211, and when the liquid cooling plate 20 is installed on the tray body 10, the liquid cooling plate can be installed more conveniently and more flexibly.

Optionally, referring to fig. 5, the angle α between the connection plate 213 and the heat dissipation plate 211 is 5 ° to 30 °. Optionally, the included angle may be 5 °, 10 °,14 °, 20 °,25 °, 30 °, and the like, without limitation. When designing the specific value of the included angle α, the design can be performed according to the structure of the tray body 10, so that the heat dissipation plate 211 and the end plate 212 can be stably installed and fixed on the tray body 10.

Alternatively, referring to fig. 5, the end plate 212 and the heat dissipation plate 211 are parallel, so that the structure is simple.

Alternatively, the end plate 212 and the heat dissipation plate 211 may be non-parallel, and may be arranged to intersect in the extending direction.

Referring to fig. 1, 5 to 7, when the liquid-cooled plate 20 is mounted to the tray body 10, the temperature-equalizing plate 22 at the corresponding position of the end plate 212 is fixedly connected to the middle plate 12. The connection and fixation method can be bonding, so as to avoid structural damage to the holes, the grooves and the like of the liquid cooling plate 20 and avoid the structures of the holes, the grooves and the like from influencing the sealing property of the flow channel 251.

Optionally, referring to fig. 6, a plurality of spaced turbulence structures 254 are disposed along the extension direction of the diversion area 257 and/or the convergence area 259, so that turbulence can be generated at a plurality of spaced positions, the interlayer heat exchange strength of the cooling medium is enhanced, and the heat dissipation effect is improved.

Optionally, referring to fig. 5, the turbulent flow structure 254 includes at least one of the following structures: cylinder 541, straight-side elliptic cylinder 542 and arc cylinder 543. It should be understood that the circular shape of the cylinder 541, the elliptical shape of the straight-sided elliptical cylinder 542, and the arc shape of the arc-shaped cylinder 543 herein are the shapes of the turbulence structures 254 in the top view of the flow field plate 21.

The flow channel 251 may be formed by punching a groove in the flow channel plate 21, and the spoiler 254 may be simultaneously punched during the punching, wherein the spoiler 254 is a structure protruding from a bottom wall of the groove of the flow channel 251, and a top end of the spoiler 254 (i.e., an end portion away from the bottom wall of the flow channel 251) may be formed in a smooth arc shape.

Different turbulating structures 254 may be provided depending on the desired turbulent effect. Flow-disrupting structures 254 include, but are not limited to: 1. the fluid can form a turbulent vortex wake flow area after passing through the cylindrical turbulent flow structure, the fluid mixing uniformity is improved by distributing and mixing the fluid for multiple times, meanwhile, the vortexes continuously collide with each other, the passivation in the fluid is increased, and a curing boundary layer is thinned; 2. the arc-shaped column (tadpole-shaped column) turbulence structure mainly refers to a main road and a branch road of a road, and simultaneously utilizes the mass conservation principle of a unit cross section of hydrodynamics, the turbulence structure can reduce the speed of an entering fluid from large to small according to the tadpole-shaped (front large and back small design) cavity, on one hand, the fluid can be divided, the inlet speed is equally divided, on the other hand, the fluid can enter a boundary region needing cooling according to an arc-shaped path, and the effects of rapid conveying and cooling are achieved; 3. the straight-edge elliptic cylinder turbulence structure is in a straight-edge elliptic shape in a plan view, and is a closed figure formed by connecting the end points of two elliptic arcs by two parallel lines with equal length, namely, one pair of opposite straight edges of a rectangle is changed into an elliptic arc shape, the lengths of the two parallel straight lines and the distance between the two parallel straight lines can be adjusted according to the required cooling effect, and the straight-edge elliptic cylinder turbulence structure can shunt fluid, so that a flow channel is in a parallel mode, and the temperature of the fluid on the liquid cooling plate is more uniform.

According to the above-mentioned functions of the different turbulent structures 254, as shown in fig. 6, when the turbulent structure 254 is the cylinder 541, the cooling medium flows through the cylinder 541, and blocks the cooling structure, so that turbulent flow can be generated. When vortex structure 254 is straight flange elliptic cylinder 542 and arc post 543, on the one hand can produce the cooling structure and block, can produce the torrent, on the other hand still can play the water conservancy diversion effect.

In a specific arrangement, for example, the diversion region 257 is provided with the spoiler structure 254, and the converging region 259 can be referred to. The diversion region 257 is sequentially provided with a cylinder 541 and a straight-edge elliptic cylinder 542 at intervals in the direction from the liquid inlet 252 to the main flow region 258. Alternatively, the turbulence structures 254 may be arranged in a manner of a cylinder 541, a 8230, a cylinder 541, a straight-edge elliptical column 542, a 8230, a straight-edge elliptical column 542, a cylinder 8230, and a straight-edge elliptical column 542, wherein a plurality of cylinders 541 are arranged first, and then a plurality of straight-edge elliptical columns 542 are arranged. Alternatively, the turbulence structures 254 may be arranged in a manner of a cylinder 541, an 8230, a cylinder 541, and a straight-sided elliptical cylinder 542, that is, a number of cylinders 541 are arranged first, and then a straight-sided elliptical cylinder 542 is arranged. Alternatively, the turbulence structures 254 may be arranged in a manner of circular cylinders 541, straight-sided elliptical cylinders 542, circular cylinders 541, straight-sided elliptical cylinders 542 \8230, or \8230, that is, one circular cylinder 541 and one straight-sided elliptical cylinder 542 are alternately arranged in sequence. It is understood that the arrangement of the flow disturbing structure 254 may be other, and is not limited.

Specifically, the corners of the diverting area 257 and/or the converging area 259 may be smoothly connected, and the arc-shaped posts 543 are disposed near the corners.

As shown in fig. 6, a plurality of turbulence structures 254 are provided, and the turbulence structures are of various types, so that when a cooling medium flows through the flow channel 251, different turbulence flows are generated at a plurality of positions, the interlayer heat exchange strength of the cooling medium at each position can be enhanced, and the heat dissipation effect can be improved.

Optionally, referring to fig. 6, the flow channel plate 21 is provided with a plurality of strip-shaped columnar structures 255 in the main flow region 258, so that the flow channel 251 forms a plurality of sub-flow channels 256, and a flow disturbing structure 254 is provided in the flow channel 251 in front of and/or behind the sub-flow channels 256.

The bar-shaped columnar structure 255 can be in any feasible shape such as a shape of "one", "U", "21274". As shown in fig. 6, the plurality of bar-shaped columnar structures 255 are shaped like a' v 21274. By the arrangement, the flow channel 251 is divided into the plurality of sub-flow channels 256, the cooling medium entering from the liquid inlet 252 can be divided into the sub-flow channels 256, so that the uniform distribution of the cooling medium is realized, the cooling medium is prevented from being concentrated at local parts and not reaching all positions of the flow channel 251, and the uniformity of heat dissipation can be improved.

Taking the embodiment shown in fig. 6 as an example, the turbulent flow structures 254 are disposed in front of and/or behind the sub-flow channels 256, so that the cooling medium is divided into streams before entering the sub-flow channels 256, and/or flows out of the sub-flow channels 256 and converges before meeting the turbulent flow structures 254, thereby generating turbulent flow, enhancing interlayer heat exchange of the cooling medium, and improving heat dissipation effect.

Alternatively, referring to fig. 6, the plurality of sub-channels 256 are in a series and/or parallel configuration. The plurality of sub-flow passages 256 are selected to have a serial and/or parallel structure according to actual conditions, and a plurality of sub-flow passages 256 uniformly distributed on the flow passage plate 21 can be formed, so that the cooling medium can reach each position, and comprehensive and uniform heat dissipation can be realized. The embodiment of the present invention is not limited specifically to the serial connection and the parallel connection.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other indexes have orientations or positional relationships based on the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention.

Claims (10)

1. A liquid cold plate, comprising:

the cooling medium enters the flow channel from the liquid inlet, the cooling medium is divided into a plurality of paths in the dividing region, and the cooling medium is converged into one path in the converging region; a turbulent flow structure is arranged in the flow dividing area and/or the converging area;

and the temperature equalizing plate is covered on the runner plate to seal the runner.

2. The liquid cooled plate of claim 1, wherein the flow field plate comprises a heat sink and an end plate attached to one side of the heat sink, wherein the divergent region and the convergent region are both located on the heat sink and the end plate, the main flow region is located on the heat sink, and the liquid inlet and the liquid outlet are both located on the end plate.

3. The liquid cooled plate of claim 2, wherein the end plate and the heat sink plate are disposed non-coplanar, and the flow channel plate further comprises a connecting plate, wherein two ends of the connecting plate are smoothly connected to the heat sink plate and the end plate, and the connecting plate forms an included angle with the heat sink plate.

4. The liquid cold plate of claim 1, wherein a plurality of said flow perturbation structures are provided at intervals along the extension of said diverging region and/or said converging region.

5. The liquid cooled panel of claim 4, wherein the flow perturbation structure comprises at least one of: cylinder, straight-sided elliptic cylinder, arc cylinder.

6. The liquid cooling plate of claim 5, wherein the flow dividing region is provided with the cylindrical columns and the straight-edge elliptic columns at intervals in sequence from the liquid inlet to the main flow region.

7. The liquid-cooled panel of claim 5, wherein the flow-splitting regions are spaced apart from the liquid inlet toward the main flow region at least in part by: the cylinder, the straight-sided elliptic cylinder.

8. The liquid cooling plate of claim 1, wherein the flow channel plate is provided with a plurality of strip-shaped columnar structures in the main flow region, so that the flow channel forms a plurality of sub-flow channels, and the flow disturbing structures are provided in front of and/or behind the sub-flow channels.

9. The liquid cooled panel of claim 8, wherein a plurality of said sub-flow channels are in a series and/or parallel configuration.

10. A battery pack tray comprising a tray body and a liquid-cooled plate as claimed in any one of claims 1 to 9, the liquid-cooled plate being secured to the tray body.

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