Liquid cooling structure with multiple layers of runners

Abstract

The liquid cooling structure comprises a water channel body, partition plates and a cover plate, a water inlet and a water outlet are arranged on the water channel body, a flow channel groove is arranged in the water channel body, the water inlet is communicated with an inlet of the flow channel groove, the water outlet is communicated with an outlet of the flow channel groove, and the partition plates are arranged in the flow channel groove. The multiple layers of partition plates are in close contact, the multiple layers of partition plates are in close contact with the side wall of the runner groove, the multiple layers of partition plates divide the runner groove into multiple layers of runners, the multiple layers of runners communicate with one another, and the cover plate is fixed to the top of the water channel body and seals the runner groove. The flow channel groove is divided into the multiple layers of flow channels through the partition plates, so that after pressure water flow flows out of the water outlet through the multiple layers of flow channels from the water inlet, the heat dissipation area and the utilization rate of the water channel structure can be improved, more heating elements can be attached to the heat dissipation face of the water channel, the structure is simple and compact, the power density is large, and the flow channels are evenly heated; the cooling effect and performance are effectively improved, and the stability of the heating element is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy electric automobile liquid cooling technical field, concretely relates to a liquid cooling structure of multilayer flow channel. BACKGROUND

[0002] New energy automobile refers to the unconventional vehicle fuel as power source (or using conventional vehicle fuel, adopting new type vehicle power device), the advanced technology of comprehensive vehicle power control and driving, the automobile of advanced technology principle, with new technology, new structure. New energy automobile includes pure electric vehicle, range extender electric vehicle, hybrid electric vehicle, fuel cell electric vehicle, hydrogen engine automobile etc.

[0003] Liquid cooling technology, as the name implies, is a technology that achieves heat dissipation through the flow of liquid. In electric vehicles, liquid cooling technology is mainly used in the thermal management of core components such as power batteries, motor controllers, DCDC chargers, and motors. The basic principle is to introduce circulating coolant into the core components, and use the flow of coolant to efficiently remove the heat generated by the components, thereby maintaining the temperature of the components within a suitable range, and thus improving the performance and efficiency of the vehicle.

[0004] The present inventor has found that the current liquid cooling method for core components in electric vehicles is mainly single-layer flow channel cooling, the water channel heat dissipation surface utilization rate is not high, the number of water channel heat dissipation surface that can be attached to the heating element is limited, the flow channel is not uniformly heated, the cooling effect is general, and the power density is small. UTILITY MODEL CONTENTS

[0005] In view of the technical problems of the current liquid cooling method for core components in electric vehicles, which is mainly single-layer flow channel cooling, the water channel heat dissipation surface utilization rate is not high, the number of water channel heat dissipation surface that can be attached to the heating element is limited, the flow channel is not uniformly heated, the cooling effect is general, and the power density is small, the utility model provides a liquid cooling structure with multilayer flow channel.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A liquid cooling structure with multilayer flow channel, comprising a water channel body, a partition plate and a cover plate, the water channel body is provided with a water inlet and a water outlet, the water channel body is provided with a flow channel groove inside, the water inlet is communicated with the inlet of the flow channel groove, the water outlet is communicated with the outlet of the flow channel groove, a plurality of partition plates are arranged in the flow channel groove, the plurality of partition plates are in close contact with each other and with the side wall of the flow channel groove, the plurality of partition plates divide the flow channel groove into a plurality of flow channels, the plurality of flow channels are communicated with each other, and the cover plate is fixed on the top of the water channel body and seals the flow channel groove.

[0008] Compared with the prior art, the liquid cooling structure with multiple layers of flow channels has the following advantages: the flow channel groove is divided into multiple layers of flow channels by the plurality of partitions, the multiple layers of flow channels are in communication with each other, and thus when the pressurized water flows into the lowermost layer of flow channels from the water inlet, the water flows in the multiple layers of flow channels in sequence and finally flows out from the uppermost layer of flow channels through the water outlet, thereby improving the heat dissipation area and utilization rate of the water channel structure, and more heat generating elements can be attached to the water channel heat dissipation surface, the structure is simple and compact, the power density is large, the flow channels are uniformly heated, the cooling effect and performance are effectively improved, and the stability of the heat generating elements is improved.

[0009] Further, the water channel body is in the shape of a ring-shaped cylinder, the water inlet is arranged at the upper portion of the ring-shaped cylinder, the water outlet is arranged at the lower portion of the ring-shaped cylinder, the inside of the ring-shaped cylinder is in a hollow structure to form a flow channel groove, and the plurality of layers of partitions are in close contact and stacked in the flow channel groove to divide the flow channel groove into multiple layers of flow channels.

[0010] Further, the water channel body is in the shape of a rectangular body, the front end of the rectangular body is provided with a water inlet and a water outlet, the bottom of the rectangular body is provided with a recess extending to the inside, the recess and the side wall of the water channel body form a flow channel groove, a plurality of layer of partition support ribs are arranged on the groove wall of the flow channel groove, each layer of partition support rib includes a plurality of partition support ribs arranged at intervals, the plurality of layers of partitions are placed on the plurality of layers of partition support ribs in one-to-one correspondence and divide the flow channel groove into multiple layers of flow channels, and the bottom of the cover plate is provided with a water channel flow guide barrier plate for pressing the surface of the uppermost layer of partitions to limit the movement of the partitions.

[0011] Further, the groove wall of the flow channel groove is provided with a layer of partition support rib, and a layer of partition is arranged in the flow channel groove in correspondence with the layer of partition support rib, the layer of partition divides the flow channel groove into an upper layer of flow channels and a lower layer of flow channels, the water inlet is in communication with the lower layer of flow channels, the water outlet is in communication with the upper layer of flow channels, and the bottom of the cover plate is provided with a water channel flow guide barrier plate for pressing the surface of the partition.

[0012] Further, the top of the recess is provided with spaced left and right water channels, the left and right water channels are in communication with the upper layer of flow channels, and the water channel flow guide barrier plate is adapted to guide the water flow from the lower layer of flow channels to the left water channel inlet and block the water flow to the right water channel inlet.

[0013] Further, the top of the recess is provided with a flow channel separation fin for spacing the left and right water channels.

[0014] Further, the surfaces of the left and right water channels are provided with a plurality of flow channel turbulence protrusions. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of a first liquid cooling structure with multiple layers of flow channels provided by the utility model.

[0016] Figure 2 yes Figure 1 A cross-sectional structural diagram.

[0017] Figure 3 yes Figure 1 A schematic diagram of a single partition structure.

[0018] Figure 4 yes Figure 1 A schematic diagram of the multi-layered partition structure.

[0019] Figure 5 This is a schematic diagram of another multi-layered flow channel liquid cooling structure provided by this utility model.

[0020] Figure 6 yes Figure 5 A cross-sectional structural diagram.

[0021] Figure 7 yes Figure 5 A schematic diagram of the separation structure of the waterway body and the cover plate.

[0022] Figure 8 yes Figure 5 A schematic diagram of the internal structure of the main waterway.

[0023] Figure 9 yes Figure 5 A schematic diagram of the bottom structure of the main body of the waterway.

[0024] Figure 10 yes Figure 5 A schematic diagram of a single partition structure.

[0025] Figure 11 yes Figure 5 A schematic diagram of the structure of the middle cover plate.

[0026] Figure 12 yes Figure 5 Schematic diagram of water flow direction in the upper and lower layers of the flow channel.

[0027] In the diagram, 1. Body; 101 Inlet; 102 Outlet; 103 Flow channel groove; 104 Flow channel; 1041 Upper flow channel; 1042 Lower flow channel; 105 Groove; 106 Baffle support rib; 107 Left water channel; 108 Right water channel; 109 Flow channel partition fins; 110 Flow channel turbulence protrusions; 2. Baffle; 3. Cover plate; 301 Water channel guide baffle plate. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0029] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0030] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Please refer to Figures 1 to 12 The utility model provides a kind of liquid cooling structure of multilayer flow channel, including water channel body 1, baffle 2 and cover plate 3, the water channel body 1 is equipped with water inlet 101 and water outlet 102, the water channel body 1 is equipped with flow channel groove 103 inside, the water inlet 101 is communicated with the inlet of flow channel groove 103, the water outlet 102 is communicated with the outlet of flow channel groove 103, the flow channel groove 103 is equipped with several layers of baffle 2, the several layers of baffle 2 are all in close contact between several layers of baffle 2 and between several layers of baffle 2 and flow channel groove 103 side wall, the several layers of baffle 2 divide flow channel groove 103 into multilayer flow channel 104, the multilayer flow channel 104 are interconnected to facilitate the flow of liquid between multilayer flow channel 104, the cover plate 3 is fixed on water channel body 1 top and seals flow channel groove 103.

[0032] Compared with prior art, the liquid cooling structure of multilayer flow channel provided by the utility model divides flow channel groove into multilayer flow channel by several baffles, the multilayer flow channel are interconnected, so when the water flow from water inlet flows into the lowermost flow channel, it will flow in multilayer flow channel in turn, and finally flows out from the uppermost flow channel through water outlet, thereby improving the heat dissipation area and utilization rate of water channel structure, so that more heating elements can be attached on the water channel heat dissipation surface, the structure is simple and compact, the power density is large, the flow channel is heated uniformly, the cooling effect and performance are effectively improved, and the stability of heating element is improved.

[0033] As a specific embodiment, please refer to Figures 1 to 4As shown, the water channel body 1 is in the shape of a ring-shaped cylinder (hollow cylinder), the water inlet 101 is arranged at the upper part of the ring-shaped cylinder, the water outlet 102 is arranged at the lower part of the ring-shaped cylinder, the inside of the ring-shaped cylinder is a hollow structure forming a flow channel groove 103, and the plurality of layers of the partition plates 2 are closely contacted and stacked in the flow channel groove 103 to divide the flow channel groove 103 into a plurality of layers of flow channels 104. The liquid cooling structure provided in the embodiment is suitable for components such as motors, and the heating element is a motor stator coil, at which time the heating element can be placed on the inner wall of the ring-shaped cylinder for heat dissipation; and the partition plate 2 shown in the embodiment is three layers, and each layer of the partition plate 2 is closely contacted and stacked with each other. Based on this, the person skilled in the art can also increase or decrease the number of partition plates according to the needs, so as to divide the flow channel groove 103 into a plurality of layers of flow channels 104; at the same time, the partition plate 2 can also be designed into a spiral partition plate to divide the flow channel groove 103 into a plurality of layers of flow channels 104, which not only can reduce the flow resistance, but also has the advantages of simple processing technology.

[0034] As a specific embodiment, please refer to Figures 5 to 12 As shown, the water channel body 1 is in the shape of a rectangular body, the front end of the rectangular body is provided with a water inlet 101 and a water outlet 102, the bottom of the rectangular body is provided with a recess 105 extending to the inside, the recess 105 and the side wall of the water channel body 1 form a flow channel groove 103, the groove wall of the flow channel groove 103 is provided with a plurality of layers of partition plate support ribs, each layer of the partition plate support rib includes a plurality of partition plate support ribs 106 arranged at intervals, the plurality of layers of the partition plates 2 are placed one by one on the plurality of layers of the partition plate support ribs and divide the flow channel groove 103 into a plurality of layers of flow channels 104, the bottom of the cover plate 3 is provided with a water channel flow resistance plate 301 for pressing the surface of the uppermost layer of the partition plate 2, and the water channel flow resistance plate 301 and the partition plate support rib 106 together limit the movement of the partition plate 2. The liquid cooling structure provided in the embodiment is suitable for components such as motor controllers, and the heating element is an inductor, a transformer, a capacitor, a power device, etc., at which time the heating element can be placed on the front, rear, left and right four side walls, the bottom and the recess wall of the rectangular body for heat dissipation.

[0035] As a specific embodiment, please refer to Figures 5 to 12As shown, the groove wall of the flow channel groove 103 is provided with a layer of partition support ribs, and a layer of partitions 2 is arranged in the flow channel groove 103. The layer of partitions 2 divides the flow channel groove 103 into an upper layer flow channel 1041 and a lower layer flow channel 1042. The water inlet 101 is in communication with the lower layer flow channel 1041, and the water outlet 102 is in communication with the upper layer flow channel 1042. The bottom of the cover plate 3 is provided with a water channel flow blocking plate 301 for pressing the surface of the partition 2 to limit the movement of the partition. Of course, those skilled in the art can also increase or decrease the number of partitions according to the needs on this basis, so as to divide the flow channel groove 103 into multiple layers of flow channels 104. The specific design of the multiple layers of partitions can refer to the partition design in the aforementioned annular cylindrical water channel body 1.

[0036] As a specific embodiment, please refer to Figure 6 and Figure 8 As shown, the top of the groove 105 is provided with spaced left water channel 107 and right water channel 108 in parallel. The left water channel 107 and the right water channel 108 are in communication with the upper layer flow channel 1041. The water channel flow blocking plate 301 is adapted to guide the water flow from the lower layer flow channel 1042 outlet to the left water channel 107 inlet and block the water flow to the right water channel 108 inlet. That is, the water channel flow blocking plate 301 not only presses the partition to limit its movement in this embodiment, but also guides the water flow from the lower layer flow channel 1042 outlet to the left water channel 107 inlet and blocks the water flow to the right water channel 108 inlet. Thus, when the pressurized water flow flows from the water inlet 101 to the lower layer flow channel 1042, flows approximately one circle along the lower layer flow channel 1042, comes to the front end of the flow channel groove 103, and then the water flow of the lower layer flow channel 1042 is guided to the left water channel 107 and the left side of the upper layer flow channel 1041 under the guidance of the water channel flow blocking plate 301, and then flows to the right water channel 108 and the right side of the upper layer flow channel 1041 after converging at the rear end of the upper layer flow channel 1041, and finally flows out from the water outlet 102. Thus, the heat dissipation area and utilization rate of the water channel structure are improved. The specific flow direction is shown in Figure 12 As shown in Figure 12 , the direction represented by the dotted arrow represents the flow direction of the lower layer flow channel 1042, and the direction represented by the solid arrow represents the flow direction of the upper layer flow channel 1041.

[0037] As a specific embodiment, please refer to Figure 8 As shown, the top of the groove 105 is provided with flow channel separation fins 109 for spacing the left water channel 107 and the right water channel 108. That is, the top of the groove 105 is divided into left and right water channels by the flow channel separation fins 109. Thus, by flowing in the left and right water channels respectively, the cooling effect and performance can be effectively improved, thereby improving the stability of the heating element.

[0038] As a specific embodiment, please refer toFigure 8 As shown, the surfaces of the left water channel 107 and the right water channel 108 are provided with a plurality of flow channel turbulence bumps 110, so that the water flow in the left and right water channels can be turbulence divided, the water flow is more uniform, and the flow channel is heated more uniformly.

[0039] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A multi-layered liquid cooling structure, characterized in that, The system includes a waterway body (1), baffles (2), and a cover plate (3). The waterway body (1) is provided with an inlet (101) and an outlet (102). The waterway body (1) is provided with a flow channel (103). The inlet (101) is connected to the inlet of the flow channel (103), and the outlet (102) is connected to the outlet of the flow channel (103). The flow channel (103) is provided with several layers of baffles (2). The several layers of baffles (2) are in close contact with each other and with the side wall of the flow channel (103). The several layers of baffles (2) divide the flow channel (103) into multiple flow channels (104). The multiple flow channels (104) are interconnected. The cover plate (3) is fixed to the top of the waterway body (1) and seals the flow channel (103).

2. The liquid cooling structure with multi-layer flow channels according to claim 1, characterized in that, The waterway body (1) is shaped like an annular cylinder. The inlet (101) is located at the top of the annular cylinder, and the outlet (102) is located at the bottom of the annular cylinder. The interior of the annular cylinder is a hollow structure forming a flow channel (103). Several layers of baffles (2) are stacked in close contact at both ends in the flow channel (103) to divide the flow channel into multiple flow channels (104).

3. The liquid cooling structure with multi-layer flow channels according to claim 1, characterized in that, The waterway body (1) is rectangular in shape. The front end of the rectangular body is provided with an inlet (101) and an outlet (102). The bottom of the rectangular body is provided with an inwardly extending groove (105). The groove (105) and the side wall of the waterway body (1) form a flow channel (103). The wall of the flow channel (103) is provided with multiple layers of partition support ribs. Each layer of partition support ribs includes multiple spaced partition support ribs (106). The several layers of partitions (2) are placed one-to-one on the multiple layers of partition support ribs and divide the flow channel (103) into multiple layers of flow channels (104). The bottom of the cover plate (3) is provided with a waterway flow guide barrier plate (301) that presses the surface of the uppermost partition to restrict the movement of the partition.

4. The liquid cooling structure with multi-layer flow channels according to claim 3, characterized in that, The channel groove (103) has a layer of partition support ribs on its wall, and a partition (2) is provided inside the channel groove (103). The partition (2) divides the channel groove (103) into an upper channel (1041) and a lower channel (1042). The inlet (101) is connected to the lower channel (1042), and the outlet (102) is connected to the upper channel (1041). The bottom of the cover plate (3) is provided with a water channel guide barrier plate (301) that presses the surface of the partition (2).

5. The liquid cooling structure with multi-layer flow channels according to claim 4, characterized in that, The top of the groove (105) is provided with a spaced left water channel (107) and a right water channel (108), which are connected to the upper flow channel (1041). The water channel guide baffle plate (301) is adapted to guide the water flow from the outlet of the lower flow channel (1042) to the inlet of the left water channel (107) and block the flow to the inlet of the right water channel (108).

6. The liquid cooling structure with multi-layer flow channels according to claim 5, characterized in that, The top of the groove (105) is provided with flow channel separating fins (109) that separate the left water channel (107) and the right water channel (108).

7. The liquid cooling structure with multi-layer flow channels according to claim 5, characterized in that, The surfaces of the left waterway (107) and the right waterway (108) are provided with multiple flow channel disturbance protrusions (110).

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