Novel heat pipe radiator

Abstract

The utility model discloses a novel heat pipe radiator. The radiator comprises at least two micro-channel parallel pipes, a plurality of fins, a metal pipe, an air duct, an aluminum block, a fan and a heat source, all the micro-channel parallel pipes are connected end to end and are bent for multiple times to form a pulsating heat pipe in a single circulation loop, and the bottom faces of the multiple pulsating heat pipes are overlapped and installed in the air duct. An air circulation channel is formed between the air duct and each micro-channel parallel pipe; wherein the fins are distributed and installed between loops of the micro-channel parallel pipes, the outer side edge planes of the micro-channel parallel pipes are attached to the surface of the aluminum block, and the communicating connecting pipe of the pulsating heat pipe of the single circulation loop is connected with the metal pipe and sealed through the metal pipe. The novel heat pipe radiator is composed of the pulsating heat pipes formed by bending the micro-channel parallel pipes, the bottom faces of the pulsating heat pipes are overlapped, and the heat dissipation capacity is improved.

Description

Technical Field

[0001] The utility model relates to the field of radiators, and particularly to a novel heat pipe radiator. Background Art

[0002] With the rapid development of technology, pulsating heat pipes have appeared more and more frequently in people's eyes. With experimental research, pulsating heat pipes have the advantages of simple structure, large equivalent heat transfer coefficient, small volume, low cost and excellent performance. However, they also have disadvantages such as unstable heat dissipation, slow startup speed, and difficulty in forming a large cycle. Summary of the Utility Model

[0003] To solve the above problems, the utility model provides a novel heat pipe radiator

[0004] According to one aspect of the utility model, a novel heat pipe radiator is provided, which includes at least two microchannel parallel tubes, a plurality of fins, a metal tube, a duct, an aluminum block, a fan, and a heat source. Each of the microchannel parallel tubes is connected end to end and forms a single circulation loop after multiple bends. A working medium is filled inside the loop to form a pulsating heat pipe. The bottoms of a plurality of pulsating heat pipes are superposed with each other and installed inside the duct, and an air circulation channel is formed between the duct and each of the microchannel parallel tubes; wherein, each of the fins is distributed and installed between the loops of each microchannel parallel tube, the outer edge plane of each of the microchannel parallel tubes is attached to the surface of the aluminum block, and the connecting pipe of the pulsating heat pipe of the single circulation loop is connected to the metal tube and sealed through the metal tube.

[0005] In some embodiments, the working medium filled inside the pulsating heat pipe formed by each of the microchannel parallel tubes is one of alcohols, ethers, ketones, and freons or a mixture of two of them. The beneficial effect is that the optional types of the working medium filled in the pulsating heat pipe are described.

[0006] In some embodiments, the microchannel parallel tubes are connected to the aluminum block by brazing or casting. The beneficial effect is that the installation method is further described.

[0007] In some embodiments, the microchannel parallel tubes are connected end to end by using multiple capillary stainless steel tubes to connect the pipelines of each of the microchannel parallel tubes in sequence with dislocation and sealed by welding, and the first and last capillary stainless steel tubes are connected to the metal tube by brazing. After the metal tube is sealed, a single root circulation path is formed. The beneficial effect is that the way of connecting the microchannel parallel tubes end to end is described.

[0008] In some embodiments, the metal tube is an aluminum tube. The beneficial effect is that the material of the metal tube is described.

[0009] In some embodiments, a fan is further included, and the fan is fixedly connected to the air duct. The advantage is that the fan can be used to assist in heat dissipation.

[0010] In some embodiments, the bottom planes of the microchannel parallel tubes are combined into a whole. The advantage is that when the bottoms of multiple microchannel parallel tubes are combined together, the heat source temperature can be simultaneously transmitted to multiple microchannel parallel tubes.

[0011] In some embodiments, the bottom planes of the microchannel parallel tubes are combined by cementing or brazing. The advantage is that the specific way of combining the bottoms of multiple microchannel parallel tubes is described. Description of the Drawings

[0012] Figure 1 Structural schematic of a novel heat pipe radiator according to an embodiment of the present invention Figure 1 ;

[0013] Figure 2 is Figure 1 the structural schematic of a novel heat pipe radiator shown Figure 2 ;

[0014] Figure 3 is Figure 1 the front processing schematic related to the microchannel parallel tube shown;

[0015] In the figure: microchannel parallel tube 1, fin 2, aluminum tube 3, air duct 4, aluminum block 5, fan 6, heat source 7, capillary stainless steel tube 8. Detailed Embodiments

[0016] The present invention will be further described in detail below with reference to the drawings.

[0017] As Figures 1-3 shown, the device mainly includes at least two microchannel parallel tubes 1, multiple fins 2, an aluminum tube 3, an air duct 4, an aluminum block 5, a fan 6, a heat source 7, and multiple capillary stainless steel tubes 8. Each microchannel parallel tube 1 is connected end to end and forms a pulsating heat pipe with a single flow loop after multiple bends. The bottoms of the pulsating heat pipes are superposed and installed inside the air duct 4. The inside of the pulsating heat pipe with a single flow loop is filled with a working medium, and its connecting pipe is connected to the metal tube 3 and sealed through the metal tube 3. In addition, multiple fins 2 are distributed and installed between the loops of each microchannel parallel tube 1 and together form at least one radiator.

[0018] Among them, the way that the microchannel parallel tubes 1 are connected end to end is to use multiple capillary stainless steel tubes 8 to connect the pipelines of each microchannel parallel tube 1 in a staggered manner in sequence, and seal them by welding. Moreover, the first and the last capillary stainless steel tubes 8 are connected to the metal tube 3 by brazing. After the metal tube 3 is sealed, a single-loop circulation path is formed.

[0019] The working medium filled inside the pulsating heat pipe formed by the microchannel parallel tubes 1 can be one of alcohols, ethers, ketones, Freons, etc., or a mixture of two of them. For example, the working medium can be R134A.

[0020] The fan 6 is fixedly connected to the air duct 4. Among them, the outer edge plane of each microchannel parallel tube 1 is in contact with the surface of the aluminum block 5, and the aluminum block 5 is fixed to the heat source 7 by a fixing clamp or screws. The fan 6 is fixedly connected to the air duct 4. Among them, an air circulation channel is formed between the air duct 4 and each microchannel parallel tube 1, so as to ensure that the airflow generated by the fan 6 can flow to each pulsating heat pipe.

[0021] In addition, each of the above-mentioned microchannel parallel tubes is connected to the aluminum block by brazing, pouring and other methods. The fixing method is not unique, and screws and other methods can also be used. Compared with screw fixing, the brazing method can make heat transfer more uniform and faster.

[0022] Among them, the edge plane of the aluminum block 5 is in contact with the surface of the heat source 7, and a thermal interface material is applied on the contacting surface to ensure thermal conductivity.

[0023] The pulsating heat pipe of a single loop is sealed by the metal tube 3. Among them, the metal tube 3 is an aluminum tube, which is connected to the radiator by brazing, cementing and other methods. After the working medium is filled, it is sealed by extrusion.

[0024] In addition, the bottom planes of each microchannel parallel tube 1 are connected by cementing or brazing, and the bottoms of multiple microchannel parallel tubes 1 are combined into a whole, so that the heat source temperature can be transmitted to multiple microchannel parallel tubes at the same time.

[0025] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A new type of heat pipe radiator, characterized in that: The invention comprises at least two microchannel parallel tubes (1), a plurality of fins (2), a metal tube (3), an air duct (4), and an aluminum block (5); each of the microchannel parallel tubes (1) is connected end to end and is bent multiple times to form a single circulation loop; the loop is filled with a working medium to form a pulsating heat pipe; the bottom surfaces of the plurality of pulsating heat pipes are superimposed on each other and are installed inside the air duct (4); wherein the fins (2) are distributed and installed between the loops of the microchannel parallel tubes (1); the outer edge plane of each microchannel parallel tube (1) is in contact with the surface of the aluminum block (5); and the connecting pipe of the pulsating heat pipe of the single circulation loop is connected to the metal tube (3) and is sealed by the metal tube (3).

2. A novel heat pipe radiator according to claim 1, characterized in that: The microchannel parallel tubes (1) are connected to the aluminum block (5) by brazing or casting.

3. A novel heat pipe radiator according to claim 1, characterized in that: The microchannel parallel tubes (1) are connected end to end by using a plurality of capillary stainless steel tubes (8) to sequentially stagger the pipelines of the microchannel parallel tubes (1), and sealing them by welding, and the head and tail capillary stainless steel tubes (8) are connected to the metal tube (3) by brazing, and the metal tube (3) is sealed to form a single circulation path.

4. A novel heat pipe radiator according to claim 1, characterized in that: The metal tube (3) is an aluminum tube.

5. A novel heat pipe radiator according to claim 1, characterized in that: It also comprises a fan (6), wherein the fan (6) is fixedly connected to the air duct (4).

6. A novel heat pipe radiator according to any one of claims 1 to 5, characterized in that: The bottom end planes of the microchannel parallel tubes (1) are combined into a whole.

7. A novel heat pipe radiator according to claim 6, characterized in that: The bottom end planes of the microchannel parallel tubes (1) are assembled by gluing or brazing.

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