Special-shaped flow channel efficient radiator

Abstract

The invention discloses a special-shaped flow channel efficient radiator which comprises a water cooling plate, a base plate and a cover plate, a first flow channel is arranged between the water cooling plate and the base plate, a flow dividing 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, and the other end of the flow dividing flow channel is communicated with a cooling liquid inlet formed in 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 invention, 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 invention relates to the technical field of liquid cooling radiators, and 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. The motor controller generates a lot of heat when working, which is often dissipated by a liquid cooling radiator.

[0003] The flow channel structure of the water-cooling plate of a liquid-cooled radiator is the key to the heat dissipation effect of the liquid-cooled 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 perform 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 that the above-mentioned existing radiators cannot dissipate the heat of electrical components at different positions inside the motor controller. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable 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 flow diversion.

[0005] The present invention provides a special-shaped 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 arranged between the water-cooled plate and the heat dissipation substrate, and a shunt flow channel, a second flow channel and a converging flow channel which are connected in sequence are arranged between the water-cooled plate and the cover plate, the other end of the shunt flow channel is connected to the coolant inlet provided on the water-cooled plate, and the other end of the converging flow channel is connected to the coolant outlet provided on the water-cooled plate, a shunt opening connected to the shunt flow channel and a converging opening connected to the converging flow channel are provided on the first flow channel, a shunt block is fixedly arranged on the shunt flow channel, the shunt block enables the shunt flow channel to form a first shunt inlet and a second shunt inlet, the first shunt inlet is connected to the shunt opening, and the second shunt inlet is connected to the second flow channel, so as to divert 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 by 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-like structure, and a first groove is opened along the circumference of a side surface of the heat dissipation substrate close to the water-cooling plate. A second groove is arranged 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 groups 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 branch inlet.

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

[0014] The water-cooled plate of the present invention is provided with a first flow channel, a branch flow channel, a second flow channel and a converging flow channel, the second flow channel is communicated with the branch flow channel and the converging flow channel, 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 to cool the electric device installed above the first flow channel. The cooling liquid flows through 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 the heat of the electrical components installed above the second flow channel. The cooling liquid flows through the second flow channel and then flows into the merging flow channel. The two flows of cooling liquid merge in the merging flow channel and then flow out from the cooling liquid outlet. The heat of the electrical components at different positions can be dissipated in a targeted manner through the flow diversion, thereby improving the heat dissipation. The problem that the existing liquid-cooled radiator cannot dissipate the heat of the electrical components at different positions inside the motor controller is solved.

[0015] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood 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 non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the heat sink and electrical components of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the radiator of the present invention;

[0019] Figure 3 It is a schematic diagram of the front structure of the water cooling plate of the present invention;

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

[0021] Figure 5 It is a result schematic diagram of the substrate of the present invention;

[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. A first branch inlet; 122. A second branch inlet. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments 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 Figure 1 to Figure 5 The embodiment of the present invention provides a special-shaped flow channel high-efficiency radiator 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 disposed on one side of the water-cooling plate 1, and a cover plate 3 disposed 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 arranged between the water-cooled 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 which are connected in sequence are arranged between the water-cooled plate 1 and the cover plate 3. Specifically, the second flow channel 13 is "U"-shaped, 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-cooled plate 1, and the other end of the converging flow channel 14 is connected to the water The cooling liquid outlet 16 opened on the cold plate 1 is connected, the first flow channel 11 is provided with a diverter opening 111 connected with the diverter flow channel 12 and a confluence opening 112 connected with the confluence flow channel 14, and a diverter block 17 is fixedly arranged on the diverter flow channel 12. The diverter block 17 enables the diverter flow channel 12 to form a first diverter inlet 121 and a second diverter inlet 122. The first diverter inlet 121 is connected with the diverter opening 111, and the second diverter inlet 122 is connected with the second flow channel 13, so as to divert the cooling liquid flowing in from the cooling liquid inlet 15 into two parallel paths.

[0031] In this embodiment, the outer edge of the side of the water-cooled plate 1 is rectangular, the coolant inlet 15 and the coolant outlet 16 are both arranged on the same side of the water-cooled plate 1, and 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 the side of one side of the water-cooled plate 1, and a diverter opening 111 and a converging opening 112 are opened on the rectangular groove, the diverter opening 111 connects the first flow channel 11 with the diverter flow channel 12, and the converging opening 112 connects the first flow channel 11 with the converging flow channel 14;

[0032] When the radiator is working, the coolant flows into the shunt channel 12 from the coolant inlet 15 and is divided into two paths, one of which flows into the first channel 11 from the shunt opening 111, and the substrate 2 is facing the first channel 11, so that the coolant in the first channel 11 dissipates heat for the power unit 7 installed above the substrate 2, and the coolant flows in the first channel 11 and flows out from the confluence opening 112 to the confluence channel 14, and the other coolant flows into the second channel 13 from the second channel inlet 121, and the capacitor on the controller is facing the position of the second channel 13, so the coolant in the second channel 13 dissipates heat for the capacitor electrical component installed above the second channel 13, and the coolant flows into the confluence channel 14 after passing through the second channel 13, and the two coolants merge in the confluence channel 14 and then flow out from the coolant outlet 16, so that the heat of the electrical components at different positions can be dissipated in a targeted manner through the shunt, thereby improving the heat dissipation, thereby solving the problem that the existing liquid-cooled radiator cannot dissipate heat for 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. The opening of the first shunt inlet 121 is set larger than the opening of the second shunt inlet 122 by the shunt block 17, so that 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, so that the heat generated at different positions can be dissipated, thereby improving the heat dissipation effect;

[0035] Specifically, the position of the shunt block 17 can be optimized by using simulation software according to the heating power of each electrical component in the motor controller, and the flow rate of the coolant flowing into the first flow channel 11 and the second flow channel 13 can be changed by changing the position of the shunt block 17 in the shunt flow channel 12, so as to produce different types of radiators and realize heat dissipation of motor controllers of different types; the simulation optimization of the position of the shunt block 17 is realized by using the existing technology, and the position of the shunt block 17 does not belong to the invention point of the present 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 is facing the first flow channel 11 and is fixedly connected to the water cooling plate 1 by bolts. Preferably, a plurality of 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.

[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, and a first groove 21 is opened along its circumference on the side surface of the substrate 2 close to the water-cooling plate 1. A second groove 18 is arranged on the water-cooling plate 1 corresponding to the first groove 21, and 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 welded into an integrated structure by friction welding, so that a sealed space is formed between the cover plate 3 and the water cooling plate 1. Friction welding makes the welding quality stable, avoids coolant leakage, and improves the quality of the radiator device.

[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 the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope 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 flow-dividing flow channel (12), a second flow channel (13) and a converging flow channel (14) which are connected in sequence are provided between the water-cooling plate (1) and the cover plate (3); the other end of the flow-dividing 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); and the first flow channel (11) is provided with a cooling liquid outlet (16) which is connected to the flow-dividing flow channel (12). A diversion opening (111) and a confluence opening (112) connected to the confluence channel (14); a diversion block (17) is fixedly arranged 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 channel 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 channel 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 channel 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 channel according to claim 3, characterized in that: The base plate (2) is in the form of a rectangular plate. A first groove (21) is provided on a side surface of the base plate (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: A plurality of groups of heat dissipation columns (5) are arranged in an alternating manner 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 flow diversion inlet (121).

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