CN206832104U - A kind of tree-like fin - Google Patents

Abstract

The utility model provides a kind of tree-like fin, including substrate, the substrate lower surface contact with thermal source, and upper surface of substrate offers conduit, and the conduit is divided into some levels, and next stage conduit is formed by upper level conduit by bifurcated, filled with evaporation liquid in conduit.Evaporation liquid is shunted step by step in the conduit of bifurcated step by step, capillary drive evaporation liquid, and liquid is transported by evaporation and disperses heat, increases heat with extraneous contact area mode so as to reach more preferable radiating effect in tree-like conduit.

Description

A tree-shaped radiator

technical field

The utility model relates to the field of heat transfer devices, in particular to a tree-shaped cooling fin.

Background technique

In the field of heat and mass transfer engineering, there are various heat transfer devices (heat sinks), including heat sinks. Most cooling devices mainly take away heat through the phase change of the working fluid, thereby completing the heat dissipation process. The heat dissipation efficiency depends on how efficiently the phase change of the working fluid absorbed by the device releases heat.

Utility model content

In order to overcome at least one defect of the above-mentioned prior art, the utility model provides a tree-shaped heat sink, which can quickly and effectively realize the purpose of heat transfer.

For solving the problems of the technologies described above, the technical scheme of the utility model is as follows:

A tree-shaped heat sink, including a base, the lower surface of the base is in contact with a heat source, the upper surface of the base is provided with channels, the channels are divided into several stages, and the channels of the next stage are bifurcated from the channels of the previous stage. Formed, the channel is filled with evaporating liquid.

In a preferred solution, each channel in the upper stage is bifurcated into two channels in the lower stage. Adjust the number of forks according to the demand. The more the number of forks, the higher the heat dissipation efficiency.

In a preferred solution, the evaporating liquid is water.

In a preferred solution, the inner wall of the channel is made of hydrophilic material.

In a preferred solution, the bottom of the channel is made of hydrophobic material. Its purpose is to promote the flow and evaporation of evaporative liquid. The hydrophilic and hydrophobic properties can be obtained by certain surface treatment.

In a preferred solution, the substrate is a metal material.

In a preferred solution, the lower surface of the base is made of black light-absorbing material. Using the characteristics of black light absorption to absorb the thermal radiation of the heat source, strengthen the heat dissipation of the evaporative liquid phase change in the channel, and further improve the heat dissipation efficiency.

Compared with the prior art, the beneficial effect of the technical solution of the utility model is: the utility model provides a tree-shaped heat sink, including a base, the lower surface of the base is in contact with a heat source, and a channel is opened on the upper surface of the base, and the The channel is divided into several stages, and the channel of the lower stage is formed by bifurcation of the channel of the upper stage, and the channel is filled with evaporating liquid. The evaporating liquid is divided step by step in the step-by-step bifurcated channel, and the capillary force drives the evaporating liquid. In the tree-shaped channel, the liquid transports and disperses heat through evaporation, and increases the contact area between the heat and the outside world to achieve better heat dissipation. Effect.

Description of drawings

FIG. 1 is a schematic diagram of a tree-shaped heat sink of the present invention.

Among them: 1. base; 2. channel.

detailed description

The accompanying drawings are for illustrative purposes only and cannot be construed as limiting the patent;

In order to better illustrate this embodiment, some parts in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product;

For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings.

The technical scheme of the utility model is further described below in conjunction with the accompanying drawings and embodiments.

Example 1

A tree-shaped heat sink, including a base, the lower surface of the base is in contact with a heat source, and a channel 2 is opened on the upper surface of the base. 2 is formed by bifurcation, and the channel 2 is filled with evaporating liquid. FIG. 1 is a schematic diagram of a tree-shaped heat sink of the present invention, in which several intermediate channels 2 are omitted.

In the specific implementation process, each channel 2 of the upper stage is bifurcated into two channels 2 in the lower stage, which is in the shape of "Y". Adjust the number of forks according to the demand. The more the number of forks, the higher the heat dissipation efficiency.

In a specific implementation process, the evaporating liquid is water.

In a specific implementation process, the inner wall of the channel 2 is made of hydrophilic material.

In a specific implementation process, the bottom of the channel 2 is made of hydrophobic material. Its purpose is to promote the flow and evaporation of evaporative liquid. The hydrophilic and hydrophobic properties can be obtained by certain surface treatment.

In a specific implementation process, the substrate is a metal material.

In a specific implementation process, the lower surface of the base is made of a black light-absorbing material. Using the characteristics of black light absorption to absorb the thermal radiation of the heat source, strengthen the heat dissipation of the evaporative liquid phase change in the channel, and further improve the heat dissipation efficiency.

In the utility model, the evaporating liquid is divided step by step in the step-by-step bifurcated channel 2, and the capillary force drives the evaporating liquid. In the tree-shaped channel 2, the liquid is transported by evaporation and disperses heat, increasing the heat and the outside world. Contact area way to achieve better heat dissipation effect.

The same or similar reference numerals correspond to the same or similar components;

The terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be interpreted as limitations on this patent;

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (7)

1. a kind of tree-like fin, it is characterised in that including substrate, the substrate lower surface contacts with thermal source, upper surface of substrate Conduit is offered, the conduit is divided into some levels, and next stage conduit is formed by bifurcated by upper level conduit, is filled with conduit Evaporate liquid.

2. tree-like fin according to claim 1, it is characterised in that each conduit of upper level is in next stage bifurcated For two conduits.

3. tree-like fin according to claim 1, it is characterised in that the evaporation liquid is water.

4. tree-like fin according to claim 1, it is characterised in that the inwall of the conduit is made up of water wetted material.

5. tree-like fin according to claim 1, it is characterised in that the bottom of the conduit is made up of hydrophobic material.

6. tree-like fin according to claim 1, it is characterised in that the substrate is metal material.

7. tree-like fin according to claim 1, it is characterised in that the substrate lower surface is black light-absorbing material.