Special-shaped flow channel efficient radiator

Abstract

The utility model discloses a special-shaped flow channel high-efficiency radiator, which comprises a water-cooling plate, a substrate and a cover plate, a first flow channel is arranged between the water-cooling plate and the substrate, a shunting flow channel, a second flow channel and a converging flow channel which are communicated in sequence are arranged between the water-cooling plate and the cover plate, the other end of the shunting flow channel is communicated with a cooling liquid inlet arranged on the water-cooling plate, and the other end of the converging flow channel is communicated with a cooling liquid outlet arranged on the water-cooling plate. The other end of the converging flow channel communicates with a cooling liquid outlet formed in the water cooling plate, a flow dividing block is fixedly arranged on the flow dividing flow channel, the flow dividing block enables the flow dividing flow channel to form a first flow dividing inlet and a second flow dividing inlet, the first flow dividing inlet communicates with the flow dividing opening, and the second flow dividing inlet communicates with the second flow channel. Cooling liquid flowing in from the cooling liquid inlet is divided into two paths connected in parallel. According to the utility model, heat dissipation of electrical elements at different positions in the motor controller is realized through shunting of the special-shaped flow channel.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling radiators, in particular to a high-efficiency radiator with a special-shaped flow channel. Background Art

[0002] The motor controller is the core technical component of the control system of new energy vehicles. When the motor controller is working, it generates a lot of heat, which is usually dissipated by a liquid cooling radiator.

[0003] The flow channel structure of the water-cooling plate of the liquid-cooling radiator is the key to affecting the heat dissipation effect of the liquid-cooling radiator. However, the flow channel structure of the water-cooling plate currently on the market makes the heat dissipation effect single and uniform, and it is difficult to carry out targeted heat dissipation according to the heat generation of components at different positions inside the motor controller. Therefore, the present application proposes a special-shaped flow channel high-efficiency radiator to solve the problem mentioned above that the existing radiator cannot dissipate heat from electrical components at different positions inside the motor controller. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a high-efficiency heat sink with a special-shaped flow channel, which can dissipate heat from electrical components at different positions inside a motor controller by diverting flow.

[0005] The utility model provides a special-shaped flow channel high-efficiency radiator, comprising a water-cooling plate, a heat dissipation substrate arranged on one side of the water-cooling plate, and a cover plate arranged on the other side of the water-cooling plate, wherein:

[0006] A first flow channel is provided between the water-cooling plate and the heat dissipation substrate, and a diverter flow channel, a second flow channel and a converging flow channel that are connected in sequence are provided between the water-cooling plate and the cover plate, the other end of the diverter flow channel is connected to the coolant inlet provided on the water-cooling plate, and the other end of the converging flow channel is connected to the coolant outlet provided on the water-cooling plate, a diverter opening connected to the diverter flow channel and a converging opening connected to the converging flow channel are provided on the first flow channel, a diverter block is fixedly provided on the diverter flow channel, the diverter block forms a first diverter inlet and a second diverter inlet in the diverter flow channel, the first diverter inlet is connected to the diverter opening, and the second diverter inlet is connected to the second flow channel, for diverting the coolant flowing in from the coolant inlet into two parallel paths.

[0007] Furthermore, the opening of the first branch inlet is larger than the opening of the second branch inlet.

[0008] Furthermore, the heat dissipation substrate faces the first flow channel and is fixedly connected to the water cooling plate via bolts.

[0009] Furthermore, the cover plate and the water-cooling plate are fixedly connected by welding.

[0010] Furthermore, the heat dissipation substrate has a rectangular plate structure, and a first groove is provided along the circumference of the side surface of the heat dissipation substrate close to the water-cooling plate. A second groove is provided on the water-cooling plate corresponding to the first groove, and a sealing ring is embedded between the first groove and the second groove.

[0011] Furthermore, a plurality of heat dissipation columns are staggeredly arranged on a side surface of the heat dissipation substrate close to the water-cooling plate.

[0012] Furthermore, the water cooling plate is provided with a chamfer or rounded corner at the first diversion inlet.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The water-cooling plate of the utility model is provided with a first flow channel, a branch flow channel, a second flow channel and a confluent flow channel. The second flow channel is communicated with the branch flow channel and the confluent flow channel, and the first flow channel is also communicated with the branch flow channel and the second flow channel. The branch flow channel is separated by a branch block to form a first branch inlet and a second branch inlet. The first branch inlet is communicated with the first flow channel through the branch opening, and the second branch inlet is communicated with the second flow channel. When working, the coolant flows into the branch flow channel from the coolant inlet and is divided into two paths, one of which flows into the first flow channel from the branch opening, and the coolant is installed above the first flow channel. The electrical components dissipate heat. The coolant flows in the first flow channel and then flows out from the confluence opening into the merging flow channel. The other flow flows into the second flow channel from the second flow channel inlet to dissipate heat for the electrical components installed above the second flow channel. The coolant passes through the second flow channel and flows into the merging flow channel. The two flows of coolant merge in the merging flow channel and then flow out from the coolant outlet. Through the diversion, the heat of the electrical components at different positions can be dissipated in a targeted manner, thereby improving the heat dissipation. This solves the problem that the existing liquid-cooled radiator cannot dissipate heat for the electrical components at different positions inside the motor controller.

[0015] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easier to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 This is a schematic structural diagram of the radiator and electrical components of the present invention;

[0018] Figure 2 This is a schematic structural diagram of the radiator of the utility model;

[0019] Figure 3 This is a schematic diagram of the front structure of the water-cooling plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the back structure of the water-cooling plate of the utility model;

[0021] Figure 5 This is a schematic diagram of the result of the substrate of the utility model;

[0022] Numbers in the figure: 1, water cooling plate; 2, base plate; 3, cover plate; 4, sealing ring; 5, heat dissipation column; 6, capacitor; 7, power unit;

[0023] 11. First flow channel; 12. Diverter flow channel; 13. Second flow channel; 14. Converging flow channel; 15. Coolant inlet; 16. Coolant outlet; 17. Diverter block; 18. Second groove;

[0024] 21. First groove;

[0025] 111, diversion opening; 112, confluence opening;

[0026] 121. First branch inlet; 122. Second branch inlet. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant utility model and are not intended to limit the scope of the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Please refer to Figures 1 to 5 The embodiment of the utility model provides a high-efficiency radiator with a special-shaped flow channel for dissipating heat from a motor controller on a new energy vehicle. The electrical components on the controller mainly include a capacitor 6 and a power unit 7. The radiator of the present application includes a water-cooling plate 1, a substrate 2 arranged on one side of the water-cooling plate 1, and a cover plate 3 arranged on the other side of the water-cooling plate 1. Figure 1 As shown, the capacitor 6 is installed on one side of the top of the water-cooling plate 1, and the power unit 7 is installed on the top of the base plate 2;

[0030] Among them, a first flow channel 11 is provided between the water-cooling plate 1 and the base plate 2. Specifically, the first flow channel 11 is rectangular. Preferably, a branch flow channel 12, a second flow channel 13 and a converging flow channel 14 are provided between the water-cooling plate 1 and the cover plate 3. Specifically, the second flow channel 13 is "U"-shaped, and one end of the second flow channel 13 is connected to one end of the branch flow channel 12, and the other end is connected to one end of the converging flow channel 14; preferably, the other end of the branch flow channel 12 is connected to the coolant inlet 15 opened on the water-cooling plate 1, and the other end of the converging flow channel 14 is connected to the water. The coolant outlet 16 opened on the cold plate 1 is connected, and the first flow channel 11 is provided with a diversion opening 111 connected to the diversion flow channel 12 and a confluence opening 112 connected to the confluence flow channel 14. A diversion block 17 is fixedly provided on the diversion flow channel 12. The diversion block 17 forms a first diversion inlet 121 and a second diversion inlet 122 in the diversion flow channel 12. The first diversion inlet 121 is connected to the diversion opening 111, and the second diversion inlet 122 is connected to the second flow channel 13, so as to divert the coolant flowing in from the coolant inlet 15 into two parallel paths.

[0031] In this embodiment, the outer edge of the side of the water-cooling plate 1 is rectangular, and the coolant inlet 15 and the coolant outlet 16 are both provided on the same side of the water-cooling plate 1. The coolant inlet 15 is connected to an external device containing coolant to provide coolant to the radiator of the present application; and the first flow channel 11 is a rectangular groove opened on one side of the water-cooling plate 1, and a diversion opening 111 and a confluence opening 112 are opened on the rectangular groove. The diversion opening 111 connects the first flow channel 11 with the diversion flow channel 12, and the confluence opening 112 connects the first flow channel 11 with the confluence flow channel 14;

[0032] When the radiator is working, the coolant flows into the diversion channel 12 from the coolant inlet 15 and is divided into two paths. One path of the coolant flows into the first channel 11 from the diversion opening 111. The substrate 2 is facing the first channel 11, so that the coolant in the first channel 11 dissipates heat to the power unit 7 installed above the substrate 2. After the coolant flows in the first channel 11, it flows out from the confluence opening 112 to the confluence channel 14. The other path of the coolant flows into the second channel 13 from the second channel inlet 121. The capacitor on the controller is facing the position of the second channel 13. Therefore, the coolant in the second channel 13 dissipates heat to the capacitor electrical component installed above the second channel 13. After passing through the second channel 13, the coolant flows into the confluence channel 14. The two paths of coolant merge in the confluence channel 14 and then flow out from the coolant outlet 16. Through diversion, the heat of the electrical components at different positions can be dissipated in a targeted manner, thereby improving heat dissipation. This solves the problem that the existing liquid-cooled radiator cannot dissipate heat from the electrical components at different positions inside the motor controller.

[0033] In a preferred embodiment, if Figure 4As shown, the opening of the first branch inlet 121 is larger than the opening of the second branch inlet 122 .

[0034] In this embodiment, the power unit 7 generates more heat than the capacitor. By using the diverter block 17 to set the opening of the first diverter inlet 121 to be larger than the opening of the second diverter inlet 122, the flow rate of the coolant flowing into the first flow channel 11 can be greater than the flow rate flowing into the second flow channel 13. This can dissipate heat at different locations, thereby improving the heat dissipation effect.

[0035] Specifically, the position of the shunt block 17 can be optimized using simulation software based on the heating power of each electrical component in the motor controller. By changing the position of the shunt block 17 in the shunt channel 12, the flow rate of the coolant flowing into the first channel 11 and the second channel 13 can be changed, thereby producing different types of radiators to achieve heat dissipation for motor controllers of different models. The simulation optimization of the position of the shunt block 17 is achieved using existing technology, and the position of the shunt block 17 does not belong to the inventive point of this application and will not be described in detail here.

[0036] In a preferred embodiment, if Figure 1 and Figure 2 As shown, the base plate 2 faces the first flow channel 11 and is fixedly connected to the water-cooling plate 1 by bolts. Preferably, a plurality of heat dissipation columns 5 are staggeredly arranged on a side surface of the base plate 2 close to the water-cooling plate 1.

[0037] In this embodiment, the heat dissipation column 5 is made of copper, which has good thermal conductivity. The heat generated by the electrical components on the top of the substrate 2 is conducted to the substrate 2, and the substrate 2 conducts the heat to multiple heat dissipation columns 5. The arrangement of multiple heat dissipation columns 5 can increase the contact area between the coolant and the substrate 2, thereby improving the heat dissipation efficiency.

[0038] In a preferred embodiment, if Figure 1 、 Figure 3 and Figure 5 As shown, the substrate 2 is a rectangular plate structure. A first groove 21 is provided along the circumference of the side surface of the substrate 2 close to the water-cooling plate 1. A second groove 18 is provided on the water-cooling plate 1 corresponding to the first groove 21. A sealing ring 4 is embedded between the first groove 21 and the second groove 18.

[0039] In this embodiment, the sealing ring 4 is embedded in the first groove 21, and then the base plate 2 is fixedly connected to the water-cooled plate 1, so that the first groove 21 is buckled with the sealing ring 4 and the second groove 18, and sealant is evenly applied in the first groove 21 and the second groove 18 to prevent leakage of the coolant.

[0040] In a preferred embodiment, if Figure 1As shown, the cover plate 3 is fixedly connected to the water-cooling plate 1 by welding. Specifically, the cover plate 3 and the water-cooling plate 1 are friction-welded to form an integrated structure, creating a sealed space between the cover plate 3 and the water-cooling plate 1. Friction welding ensures stable welding quality, prevents coolant leakage, and improves the quality of the radiator assembly.

[0041] In a preferred embodiment, if Figure 4 As shown, the water-cooling plate 1 is provided with a chamfer or rounded corner at the first branch inlet 121 .

[0042] In this embodiment, the cover plate 3 is located at the bottom when the radiator of the present application is installed, so that there is a height difference between the first flow channel 11 and the second flow channel 13, the branch flow channel 12 and the converging flow channel 14. The first flow channel 11 is higher than the branch flow channel 12, and the coolant in the branch flow channel 12 flows from bottom to top into the first flow channel 11. Chamfers or rounded corners are provided at the first branch inlet 121 of the water-cooled plate 1 to reduce energy loss during the flow of the coolant, so that the coolant can smoothly transition into the first flow channel 11.

[0043] In this specification, the terms "connect," "install," and "fix" should be understood broadly. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0044] Throughout this specification, terms such as "one embodiment" or "some embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A high-efficiency radiator with a special-shaped flow channel, characterized in that: It comprises a water-cooling plate (1), a base plate (2) arranged on one side of the water-cooling plate (1), and a cover plate (3) arranged on the other side of the water-cooling plate (1), wherein: A first flow channel (11) is provided between the water-cooling plate (1) and the base plate (2); a branch flow channel (12), a second flow channel (13) and a converging flow channel (14) are provided between the water-cooling plate (1) and the cover plate (3), the other end of the branch flow channel (12) is connected to a cooling liquid inlet (15) provided on the water-cooling plate (1); the other end of the converging flow channel (14) is connected to a cooling liquid outlet (16) provided on the water-cooling plate (1); the first flow channel (11) is provided with a second flow channel (13) connected to the branch flow channel (12); A diversion opening (111) and a confluence opening (112) connected to the confluence channel (14); a diversion block (17) is fixedly provided on the diversion channel (12); the diversion block (17) enables the diversion channel (12) to form a first diversion inlet (121) and a second diversion inlet (122); the first diversion inlet (121) is connected to the diversion opening (111), and the second diversion inlet (122) is connected to the second channel (13), so as to divert the coolant flowing in from the coolant inlet (15) into two parallel paths.

2. The high-efficiency radiator with special-shaped flow channels according to claim 1, characterized in that: The opening of the first branch inlet (121) is larger than the opening of the second branch inlet (122).

3. The high-efficiency radiator with special-shaped flow channels according to claim 1, characterized in that: The base plate (2) faces the first flow channel (11) and is fixedly connected to the water-cooling plate (1) via bolts.

4. The high-efficiency radiator with special-shaped flow channels according to claim 1, characterized in that: The cover plate (3) and the water-cooling plate (1) are fixedly connected by welding.

5. The high-efficiency radiator with special-shaped flow channels according to claim 3, characterized in that: The substrate (2) is a rectangular plate-shaped structure. A first groove (21) is provided on a side surface of the substrate (2) close to the water-cooling plate (1) along its circumference. A second groove (18) is provided on the water-cooling plate (1) corresponding to the first groove (21). A sealing ring (4) is embedded between the first groove (21) and the second groove (18).

6. The high-efficiency radiator with special-shaped flow channels according to claim 5, characterized in that: Multiple groups of heat dissipation columns (5) are staggeredly arranged on a side surface of the base plate (2) close to the water-cooling plate (1).

7. The high-efficiency radiator with special-shaped flow channels according to claim 1, characterized in that: The water-cooling plate (1) is provided with a chamfer or rounded corner at the first diversion inlet (121).

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