Brazing energy storage cold plate

Abstract

The utility model discloses a brazing energy storage cold plate, which relates to the technical field of water cooling plates, and comprises a water cooling plate, two sides of the water cooling plate are respectively connected with a support beam profile, the bottom surface of the water cooling plate is connected with a bottom support, and the bottom support comprises a plurality of bottom support plates formed by punching; the cork base is formed by the punch-formed cork base plate, so that the production efficiency is high, the strength is high, and meanwhile, the material consumption of the cork base is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water cooling plates, in particular to a brazing energy storage cooling plate. Background Art

[0002] Since power batteries generate heat during the charging and discharging process, in order to keep the batteries working at a suitable temperature, the power battery tray needs to use a cooling system to cool the batteries. The existing cooling system tray is composed of a brazed cold plate and a sheet metal base. The sheet metal base uses a lot of materials, is difficult to process, has a large overall weight, and is costly.

[0003] For example, Chinese patent CN116666809A, published on August 29, 2023, discloses a water-cooled plate tray combination structure with high stability and heat dissipation and a manufacturing method thereof, including a water-cooled plate and a bottom tray fixed to the water-cooled plate, the water-cooled plate including an upper flat plate and a lower groove plate, the lower groove plate is provided with a cooling groove, and the upper flat plate and the lower flat plate are sealed and connected to form a water-cooling flow channel at the cooling groove position; the water-cooling flow channel includes an inlet ring pipe and an outlet ring pipe, a water distribution pipe and several groups of water pipe groups are arranged in parallel between the inlet ring pipe and the outlet ring pipe, the water distribution pipe group is connected to the water distribution pipe, the water distribution pipe groups are arranged in parallel, and a return pipe parallel to the water distribution pipe group is provided at the tail end of the water distribution pipe, a water outlet branch pipe is connected to the outlet ring pipe, the water distribution pipe group and the water outlet branch pipe are parallel to the return pipe, and a plurality of support ribs are provided on the bottom tray, the support ribs include a first support rib corresponding to the return pipe and the outlet branch pipe, and the support ribs also include a plurality of second support ribs corresponding to the adjacent water distribution pipe groups. The bottom tray uses too much material and is costly Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing brazed cold plate base uses a lot of materials and has a high cost. A brazed energy storage cold plate is proposed, which is composed of a stamping plate and a profile to form a base, thereby reducing materials and reducing costs while ensuring strength.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a brazed energy storage cold plate, including a water-cooled plate, both sides of the water-cooled plate are respectively connected to the support beam profile, the bottom surface of the water-cooled plate is connected to the bottom support, and the bottom support includes a plurality of stamped bottom support plates.

[0006] A brazed energy storage cold plate, wherein a bottom support is formed by a stamped bottom support plate, thereby reducing material consumption, and is supported by support beam profiles on both sides, thereby further reducing material usage.

[0007] Preferably, both ends of the bottom support plate are connected to the support beam profile by a plurality of bolts, and the bottom support plate is fixed to the bottom surface of the water-cooling plate by resistance welding.

[0008] Preferably, transverse battery beams are fixed to both ends of the water cooling plate via rivet nuts, and the rivet nuts are installed from the bottom of the water cooling plate.

[0009] Preferably, the battery beam is hollow.

[0010] Preferably, a cooling groove is provided in the water cooling plate, and a water inlet ring pipe and a water outlet ring pipe are provided in the cooling groove.

[0011] Preferably, the water inlet ring pipe is connected to the water inlet, and the water outlet ring pipe is connected to the water outlet.

[0012] Preferably, the bottom support plate comprises a first bottom support plate and a second bottom support plate, and the first bottom support plate and the second bottom support plate are fixed by the rivet nuts and a plurality of bolts.

[0013] Preferably, two evenly distributed third bottom supporting plates are provided in the middle of the bottom surface of the water cooling plate.

[0014] The substantial effects of the utility model are as follows: the utility model forms a bottom support by a stamped bottom support plate, thereby reducing the amount of material used in the bottom support; the use of the stamped bottom support plate has high production efficiency and high strength; the use of support beam profiles as support reduces the amount of material used while meeting the structural strength; the battery cross beam is hollowed out to further reduce the amount of material used. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of embodiment 1.

[0016] Figure 2 It is a bottom view of the first embodiment.

[0017] Figure 3 This is a partial enlarged view of the connection between the support beam profile and the bottom bracket of Example 1.

[0018] Figure 4 This is a bottom view of the water cooling plate of Example 1.

[0019] Among them: 1. water cooling plate, 2. support beam profile, 3. bottom support, 301. first bottom support plate, 302. second bottom support plate, 303. third bottom support plate, 4. battery cross beam, 5. rivet nut, 6. water outlet ring pipe, 7. water inlet ring pipe, 8. water outlet, 9. water inlet. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described below through specific embodiments and in conjunction with the accompanying drawings.

[0021] Embodiment one:

[0022] A brazed energy storage cold plate, such as Figure 1As shown, the brazed energy storage cold plate as a whole is composed of a water-cooled plate 1 and a base 3. The base 3 is connected and fixed to the bottom surface of the water-cooled plate 1. The water-cooled plate 1 is rectangular as a whole. The upper side of the water-cooled plate 1 is flat, and the bottom surface has several raised water channels. Two battery beams 4 are fixed to the upper surface of the water-cooled plate 1 by rivet nuts 5. The battery beams 4 are distributed laterally and are located on the inside of the shorter side. A water inlet 9 and a water outlet 8 are also provided on the upper edge of the water-cooled plate 1, and the water inlet 9 is away from the water outlet 8. When in use, one side of the upper surface of the water-cooled plate 1 contacts the battery, and the battery beam 4 is isolated to prevent direct contact. The water inlet 9 and the water outlet 8 are used for the entry and exit of the coolant, thereby maximizing the cooling effect.

[0023] like Figure 2 As shown, a bottom support 3 is fixed to the bottom surface of the water-cooled plate 1 to protect the water-cooled plate 1. Two support beam profiles 2 are longitudinally fixed along the edges of the two long sides of the water-cooled plate 1, and the support beam profiles 2 are fixed by bolts. The support beam profile 2 is in a stepped shape, with two steps. The bottom support 3 is composed of three bottom support plates with different shapes, all of which are integrally stamped, and the two sections of these bottom support plates are fixed to the lower step of the support beam profile 2 at both ends by bolts.

[0024] The bottom support plates forming the bottom support 3 are divided into three types with different shapes, namely the first bottom support plate 301, the second bottom support plate 302 and the third bottom support plate 303. The first bottom support plate 301 and the second bottom support plate 302 are located at both ends respectively, and there are two third bottom support plates 303 in the middle, and the intervals between each bottom support plate are the same. After the first bottom support plate 301, the second bottom support plate 302 and the third bottom support plate 303 are fixed, the highest point of the support beam profiles 2 on both sides is equal. Among them, the edge shape of the first bottom support plate 301 fits the shape of the edge of the water-cooled plate 1, and the middle and the other side are arched, thereby forming two transversely distributed grooves on the side of the first bottom support 3. Some raised parts are arranged in the groove, and these raised parts are the locations where the water channels on the brazed water-cooled plate are distributed. A number of bolts are arranged in the groove close to the side of the water-cooled plate 1 to fix the first bottom support plate 301 to the water-cooled plate 1. Three waist-shaped welding points are also provided on the groove of the first bottom support plate 301. The welding points are concave inward so that the surface of the first bottom support plate 301 at this point fits the bottom surface of the water-cooling plate 1. Resistance welding is performed to further strengthen the fixation between the first bottom support plate 301 and the water-cooling plate 1.

[0025] The two third bottom support plates 303 in the middle are exactly the same in shape and size. The third bottom support plate 303 is arched on both sides and in the middle, thereby forming two parallel and identical grooves. Three inwardly recessed welding points are provided in each groove. The third bottom support plate 303 at the welding point position fits the bottom surface of the water-cooling plate 1, and there is a certain gap between the grooves at the other positions and the water-cooling plate 1 to accommodate the water channel protruding from the bottom surface of the water-cooling plate 1. The welding point position is welded by resistance welding.

[0026] The second bottom support plate 302 is aligned with the edge of the water-cooled plate 1 on the other side. The two sides and the middle position of the second bottom support plate 302 are also arched to form two grooves, and the layout of the two grooves is different. Five waist-shaped welding points of unequal lengths are arranged in the groove close to the edge of the water-cooled plate 1. The welding points are welded by resistance welding. Finally, the bottom support 3 formed by the first bottom support plate 301, the second bottom support plate 302 and the third bottom support plate 303 has a certain gap, and because it is an integrated stamping molding, while ensuring the strength, the amount of material used is greatly reduced.

[0027] like Figure 3 As shown, the support beam profile 2 is divided into a first step and a second step of different heights. The support beam profile 2 as a whole can be regarded as consisting of two hollow square profiles of different heights, wherein the second step of the bottom is composed of two hollow square profiles of equal height, thereby improving the overall support strength of the support beam profile 2. The support beam profile 2 is fixed by bolts passing through the upper surface of the water-cooled plate 1.

[0028] like Figure 4 As shown, a raised water channel is provided on the bottom surface of the water-cooled plate 1, and the water channel is divided into a water inlet ring pipe 7 and a water outlet ring pipe 6. The water inlet ring pipe 7 is connected to the water inlet 9, and the water outlet ring pipe 6 is connected to the water outlet 8. The water inlet ring pipe 7 transports the coolant poured into the water inlet 9 to the water distribution pipe through the water inlet branch pipe. The water distribution pipe is distributed horizontally, and six water inlet branches arranged in pairs and a return pipe are connected to it. A number of water distribution rings are provided on the water distribution pipe, and the coolant is transported to the branches connected thereto through the water distribution rings. The water inlet branch pipe connected to the water distribution pipe is perpendicular to the return pipe and the water distribution pipe. When the water inlet branch pipe and the return pipe reach the other end of the water-cooled plate 1, they are bent to form another branch pipe perpendicular to it, and all the branches form a heat dissipation fin ring. The end points of the water inlet branch pipe and the water return pipe are connected to the water distribution pipe at the other end of the water cooling plate 1, and the water distribution pipe is also connected to three water outlet branch pipes, and the water distribution pipe also has a plurality of water distribution rings. The water outlet branch is connected to the water outlet ring pipe 6, and the coolant flows out from the water outlet 8 through the water outlet ring pipe 6. The heat dissipation fin ring and the water outlet branch pipe are distributed over most of the area of ​​the water cooling plate 1, and the heat dissipation area is large, which has excellent heat dissipation capacity.

[0029] Embodiment 2:

[0030] like Figure 1As shown, the brazed energy storage cold plate as a whole is composed of a water-cooled plate 1 and a base 3. The base 3 is connected and fixed to the bottom surface of the water-cooled plate 1. The water-cooled plate 1 is rectangular as a whole. The upper side of the water-cooled plate 1 is flat, and the bottom surface has several raised water channels. Two battery beams 4 are fixed to the upper surface of the water-cooled plate 1 by rivet nuts 5. The battery beams 4 are distributed laterally and are located on the inside of the shorter side. A water inlet 9 and a water outlet 8 are also provided on the upper edge of the water-cooled plate 1, and the water inlet 9 is away from the water outlet 8. When in use, one side of the upper surface of the water-cooled plate 1 contacts the battery, and the battery beam 4 is isolated to prevent direct contact. The water inlet 9 and the water outlet 8 are used for the entry and exit of the coolant, thereby maximizing the cooling effect.

[0031] like Figure 2 As shown, a bottom support 3 is fixed to the bottom surface of the water-cooled plate 1 to protect the water-cooled plate 1. Two support beam profiles 2 are longitudinally fixed along the edges of the two long sides of the water-cooled plate 1, and the support beam profiles 2 are fixed by bolts. The support beam profile 2 is in a stepped shape, with two steps. The bottom support 3 is composed of three bottom support plates with different shapes, all of which are integrally stamped, and the two sections of these bottom support plates are fixed to the lower step of the support beam profile 2 at both ends by bolts.

[0032] The bottom support plates forming the bottom support 3 are divided into three types with different shapes, namely the first bottom support plate 301, the second bottom support plate 302 and the third bottom support plate 303. The first bottom support plate 301 and the second bottom support plate 302 are located at both ends respectively, and there are two third bottom support plates 303 in the middle, and the intervals between each bottom support plate are the same. After the first bottom support plate 301, the second bottom support plate 302 and the third bottom support plate 303 are fixed, the highest point of the support beam profiles 2 on both sides is equal. Among them, the edge shape of the first bottom support plate 301 fits the shape of the edge of the water-cooled plate 1, and the middle and the other side are arched, thereby forming two transversely distributed grooves on the side of the first bottom support 3. Some raised parts are arranged in the groove, and these raised parts are the locations where the water channels on the brazed water-cooled plate are distributed. A number of bolts are arranged in the groove close to the side of the water-cooled plate 1 to fix the first bottom support plate 301 to the water-cooled plate 1. Six rivet nuts 5 are arranged in another groove, and the rivet nuts 5 extend from the surface of the first bottom support plate 301 to fix one of the battery beams 4 on the upper surface of the water-cooled plate 1. The rivet nuts 5 fix the battery beams 4 through the bottom surface to ensure the airtightness inside the cold plate and ensure that the rivet nuts 5 do not pass through the waterway. At the same time, fixing the battery beams 4 by the rivet nuts 5 can replace the welding process and improve production efficiency. Three waist-shaped welding points are also arranged on this groove of the first bottom support plate 301. The welding points are concave inward, so that the surface of the first bottom support plate 301 at this point fits the bottom surface of the water-cooled plate 1, and welding is performed by resistance welding to further strengthen the fixation between the first bottom support plate 301 and the water-cooled plate 1.

[0033] The two third bottom support plates 303 in the middle are exactly the same in shape and size. The third bottom support plate 303 is arched on both sides and in the middle, thereby forming two parallel and identical grooves. Three inwardly recessed welding points are provided in each groove. The third bottom support plate 303 at the welding point position fits the bottom surface of the water-cooling plate 1, and there is a certain gap between the grooves at the other positions and the water-cooling plate 1 to accommodate the water channel protruding from the bottom surface of the water-cooling plate 1. The welding point position is welded by resistance welding.

[0034] The second bottom support plate 302 is aligned with the edge of the water-cooled plate 1 on the other side. The two sides and the middle position of the second bottom support plate 302 are also arched to form two grooves, and the layout of the two grooves is different. Five waist-shaped welding points of unequal lengths are arranged in the groove on the side close to the edge of the water-cooled plate 1, and a rivet nut 5 is arranged at the intervals between the welding points, for a total of six rivet nuts 5. The rivet nut 5 passes through the second bottom support plate 302 and is fixed to one of the battery beams 4 on the upper surface of the water-cooled plate 1. The welding points are welded by resistance welding. Finally, the bottom support 3 formed by the first bottom support plate 301, the second bottom support plate 302 and the third bottom support plate 303 has a certain gap, and because it is an integrated stamping molding, while ensuring the strength, the amount of material used is greatly reduced.

[0035] like Figure 3 As shown, the support beam profile 2 is divided into a first step and a second step of different heights. The support beam profile 2 as a whole can be regarded as consisting of two hollow square profiles of different heights, wherein the second step of the bottom is composed of two hollow square profiles of equal height, thereby improving the overall support strength of the support beam profile 2. The support beam profile 2 is fixed by bolts passing through the upper surface of the water-cooled plate 1.

[0036] like Figure 4 As shown, a raised water channel is provided on the bottom surface of the water-cooled plate 1, and the water channel is divided into a water inlet ring pipe 7 and a water outlet ring pipe 6. The water inlet ring pipe 7 is connected to the water inlet 9, and the water outlet ring pipe 6 is connected to the water outlet 8. The water inlet ring pipe 7 transports the coolant poured into the water inlet 9 to the water distribution pipe through the water inlet branch pipe. The water distribution pipe is distributed horizontally, and six water inlet branches arranged in pairs and a return pipe are connected to it. A number of water distribution rings are provided on the water distribution pipe, and the coolant is transported to the branches connected thereto through the water distribution rings. The water inlet branch pipe connected to the water distribution pipe is perpendicular to the return pipe and the water distribution pipe. When the water inlet branch pipe and the return pipe reach the other end of the water-cooled plate 1, they are bent to form another branch pipe perpendicular to it, and all the branches form a heat dissipation fin ring. The end points of the water inlet branch pipe and the water return pipe are connected to the water distribution pipe at the other end of the water cooling plate 1, and the water distribution pipe is also connected to three water outlet branch pipes, and the water distribution pipe also has a plurality of water distribution rings. The water outlet branch is connected to the water outlet ring pipe 6, and the coolant flows out from the water outlet 8 through the water outlet ring pipe 6. The heat dissipation fin ring and the water outlet branch pipe are distributed over most of the area of ​​the water cooling plate 1, and the heat dissipation area is large, which has excellent heat dissipation capacity.

[0037] The battery beam 4 fixed on the upper surface of the brazed water-cooling plate is hollow inside and is a hollow rectangular profile. When fixed by the rivet nut 5, the rivet nut 5 passes through the side where the battery beam 4 and the water-cooling plate 1 are attached, and stops inside the battery beam 4. No rivet nut 5 is exposed on the surface of the battery beam 4. The hollow battery beam 4 can further save materials and reduce the overall weight.

[0038] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A brazed energy storage cold plate, characterized in that: It includes a water-cooling plate, both sides of which are connected to the supporting beam profiles respectively, and the bottom surface of the water-cooling plate is connected to the bottom support, and the bottom support includes a plurality of stamped bottom support plates; The two ends of the bottom support plate are connected to the support beam profile by a plurality of bolts, and the bottom support plate is fixed to the bottom surface of the water cooling plate by resistance welding.

2. A brazed energy storage cold plate according to claim 1, characterized in that: The two ends of the water cooling plate are respectively fixed with transverse battery beams through rivet nuts, and the rivet nuts are installed from the bottom of the water cooling plate.

3. A brazed energy storage cold plate according to claim 2, characterized in that: The battery cross beam is hollow.

4. A brazed energy storage cold plate according to claim 1, characterized in that: A cooling groove is arranged in the water cooling plate, and a water inlet ring pipe and a water outlet ring pipe are arranged in the cooling groove.

5. A brazed energy storage cold plate according to claim 4, characterized in that: The water inlet ring pipe is connected to the water inlet, and the water outlet ring pipe is connected to the water outlet.

6. A brazed energy storage cold plate according to claim 2 or 3, characterized in that: The bottom support plate includes a first bottom support plate and a second bottom support plate, and the first bottom support plate and the second bottom support plate are fixed by the rivet nuts and a plurality of bolts.

7. A brazed energy storage cold plate according to claim 1 or 2, characterized in that: Two evenly distributed third bottom supporting plates are arranged in the middle of the bottom surface of the water cooling plate.

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