Radiator

Abstract

The utility model discloses a radiator which comprises a base assembly, a fin set and a water pump, the fin set is arranged on the base assembly, and the water pump is connected with the base assembly. The base assembly comprises a base body and a cover plate, a liquid inlet cavity and a liquid outlet cavity are formed in the base body, the cover plate covers openings of the liquid inlet cavity and the liquid outlet cavity, and the liquid inlet cavity and the liquid outlet cavity are mutually independent and communicated through a water pump. The fin set comprises a plurality of heat dissipation fins arranged side by side, the heat dissipation fins are installed on the cover plate, each heat dissipation fin is provided with a hollow Tesla valve type pipe network, the Tesla valve type pipe network is communicated with the liquid inlet cavity and the liquid outlet cavity, the liquid inlet cavity, the liquid outlet cavity and the liquid inlet cavity are filled with working liquid, and the working liquid circularly flows in the three cavities in a one-way mode to achieve heat transfer. The radiator can overcome the influence of gravity on liquid flowing resistance and reduce backflow resistance of liquid under low flow, so that the heat conversion efficiency is enhanced, and the heat dissipation performance of the radiator is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to radiator technical field, in particular to a radiator. BACKGROUND

[0002] In the 5G communication industry, it is usually necessary to use a radiator to dissipate heat from a heat source of a wireless communication device to ensure that the wireless communication device can be kept in a suitable working temperature range. The heat dissipation bottleneck of the radiator has been on the heat transfer efficiency, especially for the water-cooled radiator, how to reduce the flow resistance of the fluid, improve the flow speed of the fluid, and enhance the heat transfer efficiency is the key factor to improve the performance.

[0003] The water-cooled radiator includes an evaporation area and a condensation area, and the working liquid circulates and flows in the two areas to achieve heat transfer. During the circulation and flow process, the working liquid in the condensation area is easily affected by gravity when flowing, thereby increasing the flow resistance of the working liquid, causing the flow rate to slow down, and affecting the heat transfer efficiency of the radiator.

[0004] Therefore, how to design a radiator to overcome the above technical problems. SUMMARY

[0005] In view of the deficiencies of the prior art, the utility model provides a radiator, which can overcome the influence of gravity on the flow resistance of the liquid, reduce the backflow resistance of the liquid at low flow rate, thereby enhancing the heat transfer efficiency and improving the heat dissipation performance of the radiator.

[0006] The utility model aims to realize the following technical schemes:

[0007] A radiator comprises a base assembly, a fin group and a water pump, the fin group is arranged on the base assembly, and the water pump is connected with the base assembly.

[0008] The base assembly comprises a base body and a cover plate, the base body is provided with a liquid inlet cavity and a liquid outlet cavity, the cover plate covers the openings of the liquid inlet cavity and the liquid outlet cavity, the liquid inlet cavity and the liquid outlet cavity are independent of each other and are communicated by the water pump;

[0009] The fin group comprises a plurality of heat dissipation fins arranged side by side, the heat dissipation fins are mounted on the cover plate, and each heat dissipation fin is provided with a hollow Tesla valve type pipe network, the Tesla valve type pipe network communicates the liquid inlet cavity and the liquid outlet cavity, the interiors of the three are filled with working liquid, and the working liquid unidirectionally circulates and flows in the interiors of the three to achieve heat transfer.

[0010] In another embodiment, the Tesla valve pipe network is provided with a front-end pipe, a rear-end pipe and a middle pipe, and the working liquid in the Tesla valve pipe network flows through the rear-end pipe, the middle pipe and the front-end pipe in sequence during operation.

[0011] In another embodiment, the end of the front-end pipe forms an outlet end, which is in communication with the liquid outlet cavity, and the end of the rear-end pipe forms an inlet end, which is in communication with the liquid inlet cavity.

[0012] In another embodiment, the cover plate is provided with positioning through holes which are adapted to the outlet end and the inlet end, and the positioning through holes are in communication with the liquid inlet cavity and the liquid outlet cavity, and the heat dissipation fins are welded to the cover plate, and the positioning through holes are sealingly welded to the outlet end and the inlet end during assembly.

[0013] In another embodiment, the liquid inlet cavity comprises a main chamber and a plurality of sub-chambers, one end of the water pump is in communication with the main chamber, and the plurality of sub-chambers are independent of each other and in communication with the main chamber.

[0014] Each of the sub-chambers is provided with a plurality of protruding columns, and the protruding columns are in abutment with the cover plate when the cover plate is closed.

[0015] In another embodiment, the base body is provided with a plurality of heat-conducting plates arranged side by side, the number of the heat-conducting plates is the same as the number of the sub-chambers, and the distribution positions of the plurality of heat-conducting plates correspond to the sub-chambers one by one.

[0016] In another embodiment, heat-conducting silicone grease is arranged between the heat-conducting plates and the base body.

[0017] In another embodiment, a waterproof sealing ring is arranged between the cover plate and the base body.

[0018] In another embodiment, the edge of the heat dissipation fin is provided with a notch, the fin group comprises a shaped strip, the shaped strip is provided with clamping teeth which are adapted to the notch, the number of the clamping teeth corresponds to the number of the heat dissipation fins, and the shaped strip is used for clamping the edge of the heat dissipation fin, so as to prevent the heat dissipation fin from being deformed.

[0019] In summary, the heat radiator of the present application can overcome the influence of gravity on the flow resistance of liquid, reduce the backflow resistance of liquid under low flow, thereby enhancing the heat conversion efficiency and improving the heat dissipation performance of the heat radiator. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows.

[0021] Figure 1 Fig. 1 is a structural schematic view of a radiator according to the present application;

[0022] Figure 2 Fig. 2 is a structural schematic view of a base assembly according to the present application; Figure 1 Fig. 3 is a structural schematic view of a base body according to the present application;

[0023] Figure 3 Fig. 4 is a plan schematic view of a radiator according to the present application (I); Figure 1 Fig. 5 is a plan schematic view of a radiator according to the present application (II);

[0024] Figure 4 Fig. 6 is a structural schematic view of a base body and a water pump according to the present application; Figure 1 Fig. 7 is a structural schematic view of a back surface of a base body according to the present application;

[0025] Figure 5 Fig. 8 is a structural schematic view of a radiator according to another embodiment of the present application. Figure 2 DETAILED DESCRIPTION

[0026] Figure 6 Figure 2

[0027] Figure 7 For the purpose of promoting the understanding of the present application, the present application will be more fully described by reference to the following drawings. Those skilled in the art will readily appreciate that the specific application is only illustrative of the application and is not intended to limit the scope of the application, as defined by the appended claims. Therefore, the application as claimed should not be limited to the contents disclosed in the description and / or accompanying drawings. Moreover, well-known structures, materials or acts are not necessarily described in detail in order to avoid obscuring the application. In the drawings, like reference numerals refer to same or similar functionalities throughout the several views.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety for the purpose of describing and disclosing the chemicals, pharmaceutical compositions, formulations, pharmacophors, intermediates, synthetic methods and pathways, and reagents used in connection with the application. The

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety for the purpose of describing and disclosing the chemicals, pharmaceutical compositions, formulations, pharmacophors, intermediates, synthetic methods and pathways, and reagents used in connection with the application. The ​​​

[0030] The utility model provides a radiator 10, such as Figure 1 And Figure 2 As shown, it includes: base assembly 100, fin group 200 and water pump 300, fin group 200 is located on base assembly 100, water pump 300 is connected with base assembly 100.Base assembly 100 includes base body 110 and cover plate 120, and the liquid inlet cavity 130 and the liquid outlet cavity 140 are set up in base body 110, and the cover plate 120 is covered in the opening of liquid inlet cavity 130 and liquid outlet cavity 140.Liquid inlet cavity 130 and liquid outlet cavity 140 are independent of each other, and both are communicated by water pump 300.

[0031] As shown, Figure 1 Fin group 200 includes a plurality of side-by-side heat dissipation fins 210, heat dissipation fins 210 are installed on cover plate 120, and each heat dissipation fin 210 is provided with a hollow Tesla valve type pipe network 220, and the Tesla valve type pipe network 220 is communicated with liquid inlet cavity 130 and liquid outlet cavity 140, the interiors of the three are filled with working liquid, and the working liquid unidirectionally circulates in the interiors of the three to realize heat transfer.

[0032] In the utility model, the radiator 10 can be divided into heat absorption area and condensation area, the heat absorption area includes the liquid inlet cavity 130 of base body 110, and the condensation area includes heat dissipation fin 210 and the Tesla valve type pipe network 220 thereon.In operation, the working liquid unidirectionally circulates, and after being heated in the heat absorption area, it flows to the condensation area to dissipate heat, and then flows to the liquid outlet cavity 140, and finally returns to the liquid inlet cavity 130 (heat absorption area) under the action of water pump 300 and starts the next cycle.That is, in the process of circulation, the working liquid transfers heat from the heat absorption area to the condensation area, thereby realizing heat dissipation of the heat absorption area.

[0033] It should be particularly pointed out that in the process of circulation, the working liquid in the condensation area is affected by gravity in addition to the pressure provided by water pump 300.Especially when the flow direction of the working liquid is opposite to the direction of gravity, such as the working liquid in the condensation area flows against gravity from bottom to top, the gravity of the working liquid itself will resist its flow (i.e. form resistance), thereby increasing the working pressure of water pump 300 and reducing the circulation rate of the working liquid.This is the technical problem existing in the prior art radiator.To overcome the influence of gravity, the radiator 10 of the utility model mainly relies on the Tesla valve type pipe network 220 to realize.

[0034] In this embodiment, as Figure 3As shown, the Tesla valve-type piping network 220 includes a front end pipe 221, a rear end pipe 222, and a middle pipe 223. During operation, the working fluid in the Tesla valve-type piping network 220 flows sequentially through the rear end pipe 222, the middle pipe 223, and the front end pipe 221. Preferably, the end of the front end pipe 221 forms an outlet end 224, which is connected to the liquid outlet chamber 140; the end of the rear end pipe 222 forms an inlet end 225, which is connected to the liquid inlet chamber 130.

[0035] The structure of the middle pipe 223 is a Tesla valve structure. As is known from existing technology, the Tesla valve structure has the characteristic of unidirectional flow. Thus, the working fluid in the Tesla valve type pipe network 220 can only flow from the rear pipe 222 to the front pipe 221. When the working fluid tries to flow in the opposite direction, it will encounter great flow resistance.

[0036] Based on the aforementioned unidirectional flow characteristic, the radiator 10 of this invention can overcome the influence of gravity on the flow of the working fluid. Specifically, assuming that during operation, the front end pipe 221 is above the rear end pipe 222 (e.g., Figure 3 As shown in the diagram, the flow direction of the working fluid in the middle pipe 223 is opposite to the direction of gravity. Under the action of the water pump 300, the working fluid enters the rear pipe 222 from the inlet chamber 130, and then enters the front pipe 221 through the middle pipe 223. During this process, the working fluid tends to flow in the opposite direction under the action of gravity. The flow resistance generated by the Tesla valve structure of the middle pipe 223 can effectively reduce or even counteract this tendency, that is, overcome the influence of gravity on the working fluid, thereby reducing the pressure difference between the rear pipe 222 and the front pipe 221, making it easier for the working fluid to flow in the specified direction, and reducing the workload of the water pump 300. Finally, the working fluid flows from the front pipe 221 into the outlet chamber 140, and then re-enters the inlet chamber 130 through the water pump 300, realizing a circulating flow.

[0037] Assuming that during operation, the rear pipe 222 is positioned above the front pipe 221 (e.g., Figure 4 As shown in the diagram, the flow direction of the working fluid in the middle pipe 223 is the same as the direction of gravity. Under the action of the water pump 300, the working fluid enters the rear pipe 222 from the inlet chamber 130, and then enters the front pipe 221 through the middle pipe 223. During this period, the working fluid in the middle pipe 223 can flow smoothly in the specified direction under the combined action of hydraulic pressure and gravity. In this case, gravity becomes an aid to the flow of the working fluid, which also reduces the workload of the water pump 300.

[0038] That is to say, in the utility model, no matter how the installation direction of the radiator 10 is, whether the working liquid flow direction in the middle pipe 223 is consistent with the gravity direction, the pressure difference in the Tesla valve type pipe network 220 can be kept within a reasonable range, thereby overcoming the influence of gravity on flow resistance, especially reducing the liquid backflow resistance under low flow conditions, ensuring smooth flow of the working liquid in the designated direction, and further enhancing the heat conversion efficiency and improving the heat dissipation performance.

[0039] In the embodiment, the cover plate 120 is provided with positioning through holes 121 (as shown in Figure 2 ) matched with the outlet end 224 and the inlet end 225, and the positioning through holes are in communication with the liquid inlet cavity 130 and the liquid outlet cavity 140. During assembly, the radiator fins 210 are welded with the cover plate 120, and the positioning through holes 121 are sealingly welded with the outlet end 224 and the inlet end 225, so as to avoid leakage of the working liquid.

[0040] In the embodiment, as shown in Figure 5 , the liquid inlet cavity 130 comprises a main cavity 131 and a plurality of sub-cavities 132, one end of the water pump 300 is in communication with the main cavity 131, and the plurality of sub-cavities 132 are independent of each other and are in communication with the main cavity 131. Furthermore, a plurality of protruding columns 133 are arranged in each sub-cavity 132, the protruding columns 133 abut against the cover plate 120 when the cover plate 120 is closed, that is, the protruding columns 133 provide multi-point support for the cover plate 120, thereby preventing the cover plate 120 from collapsing and deforming. Moreover, the protruding columns 133 are integrally formed with the base body 110, and the protruding columns 133 increase the surface area in contact with the working liquid, so that the base body 110 can more efficiently transfer heat to the working liquid, that is, the heat transfer efficiency is improved.

[0041] Preferably, as shown in Figure 6 , a plurality of heat-conducting plates 150 are arranged side by side on the base body 110, the number of the heat-conducting plates 150 is the same as that of the sub-cavities 132, and the distribution positions of the plurality of heat-conducting plates 150 correspond to the sub-cavities 132 one by one. The heat-conducting plates 150 are directly in contact with the heat source, and can be made of copper alloy material with better heat-conducting performance. Preferably, heat-conducting silicone grease (not shown in the figure) is arranged between the heat-conducting plates 150 and the base body 110. The heat-conducting silicone grease is a kind of high-heat-conducting insulating organic silicon material. In heat dissipation and heat conduction applications, even if two planes with very smooth surfaces are in contact, there will be gaps. The air in these gaps is a poor conductor of heat, which will hinder the conduction of heat to the heat sink. The heat-conducting silicone grease can fill these gaps, thereby improving the heat conduction efficiency between the heat-conducting plates 150 and the base body 110.

[0042] In another embodiment, a waterproof sealing ring (not shown) is arranged between the cover plate 120 and the base body 110, which is beneficial to improve the sealing performance of the gap between the cover plate 120 and the base body 110, thereby preventing the working liquid from leaking from the gap.

[0043] In another embodiment, the edges of the heat dissipation fins are provided with notches, and the fin group comprises a shaping strip 230 provided with clamping teeth matched with the notches, the number of the clamping teeth corresponding to the number of the heat dissipation fins 210, and the shaping strip 230 is used for clamping the edges of the heat dissipation fins 210, thereby preventing the heat dissipation fins 210 from being deformed.

[0044] In summary, the radiator 10 of the present application can overcome the influence of gravity on the flow resistance of the liquid, reduce the backflow resistance of the liquid at low flow rate, thereby enhancing the heat conversion efficiency and improving the heat dissipation performance of the radiator.

[0045] The above-mentioned embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that, for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A heat sink, characterized by, The application relates to a base assembly, a fin group and a water pump, wherein the fin group is arranged on the base assembly, and the water pump is connected with the base assembly. The base assembly comprises a base body and a cover plate, the base body is internally provided with an inlet cavity and an outlet cavity, the cover plate is arranged on the opening of the inlet cavity and the outlet cavity, the inlet cavity and the outlet cavity are independent of each other and are communicated through the water pump. The fin group comprises a plurality of heat dissipation fins arranged side by side, the heat dissipation fins are arranged on the cover plate, and each heat dissipation fin is provided with a hollow Tesla valve type pipe network, the Tesla valve type pipe network is communicated with the inlet cavity and the outlet cavity, the interiors of the three are filled with working liquid, and the working liquid flows in one direction in the interiors of the three to realize heat transfer. The Tesla valve type pipe network is provided with a front end pipe, a rear end pipe and a middle pipe, and the working liquid in the Tesla valve type pipe network flows through the rear end pipe, the middle pipe and the front end pipe in sequence during working.

2. The heat spreader of claim 1, wherein, The end of the front end pipe forms an outlet end, and the outlet end is communicated with the outlet cavity; the end of the rear end pipe forms an inlet end, and the inlet end is communicated with the inlet cavity.

3. The heat sink of claim 2, wherein, The cover plate is provided with positioning through holes matched with the outlet end and the inlet end, and the positioning through holes are communicated with the inlet cavity and the outlet cavity, the heat dissipation fins are welded with the cover plate during assembly, and the positioning through holes are sealedly welded with the outlet end and the inlet end.

4. The heat sink of claim 3, wherein, The inlet cavity comprises a main chamber and a plurality of sub-chambers, one end of the water pump is communicated with the main chamber, and the plurality of sub-chambers are independent of each other and are communicated with the main chamber.

5. The heat spreader of claim 1, wherein, Each sub-chamber is provided with a plurality of convex columns, and the convex columns are abutted with the cover plate when the cover plate is closed. The base body is provided with a plurality of heat conduction plates arranged side by side, the number of the heat conduction plates is the same as that of the sub-chambers, and the distribution positions of the plurality of heat conduction plates correspond to the sub-chambers one by one.

6. The heat sink of claim 5, wherein, Heat conduction silicon grease is arranged between the heat conduction plates and the base body.

7. The heat sink of claim 6, wherein, A waterproof sealing ring is arranged between the cover plate and the base body.

8. The heat spreader of claim 1, wherein, The edge of the heat dissipation fin is provided with a notch, the fin group comprises a shaping strip, the shaping strip is provided with clamping teeth matched with the notch, the number of the clamping teeth corresponds to that of the heat dissipation fins, and the shaping strip is used for clamping the edge of the heat dissipation fin to prevent the heat dissipation fin from being deformed.

9. The heat spreader of claim 1, wherein, ​

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