CN210274954U

CN210274954U - Phase change radiator

Info

Publication number: CN210274954U
Application number: CN201920803523.8U
Authority: CN
Inventors: 吕刚
Original assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Current assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-04-07
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a phase change radiator, include: the plate structure is internally provided with a through pipeline, and a refrigerant medium filled in the through pipeline; the plate structure is arranged on a plate body; the through pipe is provided with at least one arc-shaped section, the plate structure is provided with a bending edge, the bending edge is provided with a heating element, and the through pipe extends to the bending edge. The utility model discloses a to link up the pipeline and extend to the limit of buckling, owing to buckle the edge and be provided with heating element, consequently reduced the distance between cold medium matter and the heat source, improve the radiating efficiency.

Description

Phase change radiator

Technical Field

The utility model relates to a heat dissipation technical field especially relates to a phase change radiator.

Background

At present, the brightness requirement of consumers on the television is gradually improved, a high-power LED is required to be adopted, and meanwhile, the good heat dissipation system can improve the luminous efficiency of the LED and improve the reliability of products. However, consumers pursue lightness, thinness and simplification in appearance, the thinner the television is, the smaller the rear shell of the whole television becomes, and the space of a heat dissipation structure of the television is compressed. In recent years, a phase-change radiator appears on the market, a refrigerant medium with a higher thermal conductivity than a metal plate is filled in a plate of the radiator, and the heat of an LED lamp (namely a heat source) is transferred to the external environment through vaporization-liquefaction circulation of the refrigerant medium in the plate.

However, in the existing phase-change radiator, the distance between the heat source and the cold medium in the filling channel is far, the heat cannot be conducted to the cold medium more quickly, and the radiating effect is poor.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, provide a phase change radiator, aim at solving the problem that fills the refrigerant medium in the passageway far away from the heat source in the phase change radiator of prior art, the radiating effect is not good.

The utility model provides a technical scheme that technical problem adopted as follows:

a phase change heat sink, wherein the phase change heat sink comprises: the plate structure is internally provided with a through pipeline, and a refrigerant medium filled in the through pipeline; the plate structure is arranged on a plate body; the through pipe is provided with at least one arc-shaped section, the plate structure is provided with a bending edge, the bending edge is provided with a heating element, and the through pipe extends to the bending edge.

Preferably, a bending region is arranged at the joint of the bending edge and the plate structure, and the arc-shaped section is arranged on the through pipe at the bending region.

Preferably, the bending angle of the bending region is 90 °.

Preferably, the through pipe is a blow-up molding structure, and the arc-shaped section is a blow-up arc-shaped structure on the through pipe.

Preferably, the plate body is provided with a heat dissipation structure for radiating or conducting heat outwards.

Preferably, the heat dissipation structure includes a nano heat dissipation coating coated on the board body, or a heat dissipation member disposed on the board body.

Preferably, the inflation arc structure is arranged on one side of the plate structure, and the inflation arc structure faces the LED light bar.

Preferably, the inflation arc structure is arranged on one side face of the plate structure, and the inflation arc structure faces away from the LED light bar.

Preferably, the plate structures are arranged in two and are arranged side by side, the inflation arc-shaped structure on one plate structure faces towards the LED light bars, and the inflation arc-shaped structure on the other plate structure faces away from the LED light bars.

Preferably, the inflation arc-shaped structure faces towards the joint of the plate structure and the bent edge of the LED light bar, and the joint is not provided with the inflation arc-shaped structure.

The utility model has the advantages that: the utility model discloses a to link up the pipeline and extend to the limit of buckling, owing to buckle the edge and be provided with heating element, consequently reduced the distance between cold medium matter and the heat source to make the produced heat of heat source conduct to cold medium matter fast, improve the radiating efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a phase change heat sink according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a phase change heat sink according to a second embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a phase change heat sink according to a third embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a phase change heat sink according to a fourth embodiment of the present invention.

Fig. 5 is a heat dissipation schematic diagram of the phase change heat sink provided by the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Because the refrigerant medium in the perfusion channel in the existing phase-change radiator is far away from the heat source, the heat cannot be more quickly conducted to the refrigerant medium, and the radiating effect is poor. To solve this problem, the present embodiment provides a phase change heat sink, as shown in fig. 1 in particular, including: a plate structure 10 with a through duct arranged inside, a cooling medium (not shown) filled in the through duct; the plate structure 10 is disposed on a plate body 40. At least one arc-shaped section 20 is arranged on the through pipe, a bending edge 30 is arranged on the plate structure 10, the bending edge 30 is arranged on a plate body 40 for placing a heating element 50, and the through pipe extends to the bending edge 30. As can be seen from fig. 1, the bending edge 30 of the plate structure 10 is disposed on the plate body 40, and the heating element 50 (such as an LED light bar) is disposed on the bending edge 30, a through-channel of the plate structure 10 is filled with a refrigerant medium, and the through-channel extends to the bending edge 30, so that a distance between the refrigerant medium in the through-channel and the heating element 50 is very close, that is, only the plate thickness of the plate structure 10 is spaced, so that heat generated by the heating element 50 is rapidly conducted to the refrigerant medium, and the heat dissipation efficiency is improved.

Further, the plate structure 10 in this embodiment is formed by rolling two or more layers of thin plates, and since the plate structure 10 has the bending edge 30, the plate structure 10 is bent after rolling to form the bending edge 30, and then the through-channels are formed by blowing, and the through-channels are printed with graphite material in the blowing surface. In order to further improve the heat dissipation efficiency of the phase change heat sink, the present embodiment provides a plurality of arc segments 20 on the through-pipe, and the arc segments 20 are arc-shaped (i.e. the place on the through-pipe having the arc segments 20 is an arc-shaped pipe). Through setting up this segmental arc 20 for the refrigerant medium matter in the whole pipeline that link up can be fully moved in through-flow pipeline, and then can carry out vapour-liquid circulation more fully, thereby improves heat exchange efficiency. Preferably, since the through pipe is blow molded in this embodiment, the arc segment 20 is also a blow arc structure.

Preferably, the connection between the plate structure 10 and the bending edge 30 in the present embodiment is provided with a bending region a, and the through-pipe at the bending region a is provided with the arc-shaped segment 20, so that the cooling medium at the bending region a can better flow into the bending edge 30 from the plate structure 10 or flow into the plate structure 10 from the bending edge 30, thereby better exchanging heat. Preferably, the bending angle of the bending region a is 90 °.

Further, the plate body 40 of the present embodiment is provided with a heat dissipation structure 60 for radiating or conducting heat outwards, the heat dissipation structure may be a nano heat dissipation coating coated on the plate body 40, or may be a heat dissipation member disposed on the plate body 40, as shown in fig. 1, the heat dissipation structure 60 in fig. 1 is a heat dissipation member disposed on the plate body 40, the plate body 40 is in contact with the plate structure 10, and when the cooling medium in the plate structure 10 transfers the heat of the heating element 50 to the plate body 40, the heat is conducted outwards through the heat dissipation member.

The refrigerant in the present embodiment includes a refrigerant of chlorotrifluoropropene, water, antifreeze, ethylene glycol, and the like, and flows through the through pipe. The specific principle is as shown in fig. 5, when the temperature rises, the refrigerant medium at the bottom in the through pipe absorbs heat (i.e. the heat is transferred in), the liquid is evaporated to become the gaseous state and rises from bottom to top, when reaching the upper part of the through pipe, the gaseous refrigerant medium releases heat and condenses to become the liquid state and falls back to the bottom, and the heat is transferred to the plate body 40 (i.e. the heat is transferred out) through vaporization-liquefaction phase change circulation, so that the heat dissipation is realized.

Further, the arrangement of the arc segments 20 may be different, except that as shown in fig. 1, the arc segments 20 (i.e., the inflation arc structure) are arranged on one side of the sheet structure 10 and face the heat generating element 50, and preferably, the flatness of the arc segments 20 is required to avoid abutting against the heat generating element 50. The heat generated by the heating element 50 is conducted to the refrigerant medium in the through-duct, which transfers the heat to the plate body 40 through phase change circulation, and then is diffused out by the plate body 40 through radiation (coated with nano heat-dissipating material) or conduction form (heat-dissipating member).

Other embodiments have other arrangements of arcuate segments 20. As shown in fig. 2, in the embodiment of fig. 2, the arc segment 20 (i.e. the blowing arc structure) is arranged on the other side of the plate structure 10, and the arc segment 20 faces away from the heating element 50, as can be seen from fig. 2, the plate structure 10 also has a bending edge 30, and the arc segment 20 is also arranged in the through-channel at the connection of the plate structure 10 and the bending edge 30, and likewise, the heat generated by the heating element 50 is conducted to the refrigerant medium in the through-channel, which transmits the heat to the plate body 40 through the phase change cycle, and then the heat is diffused out from the plate body 40 through radiation (coated with nano heat-dissipating material) or conduction (heat-dissipating member).

Further, as shown in fig. 3, in the embodiment of fig. 3, the phase change heat sink includes two plate structures 10, and the two plate structures 10 are arranged side by side, wherein the arc-shaped section 20 (i.e., the blown arc-shaped structure) on one plate structure 10 is arranged toward the heat generating element 50, and the arc-shaped section 20 (i.e., the blown arc-shaped structure) on the other plate structure 10 is arranged away from the heat generating element 50. As can be seen from fig. 3, the two sheet structures 10 likewise have a bending edge 30, and the through-channels at the connection of the two sheet structures 10 to the bending edge 30 are likewise provided with a curved section 20, the flatness of which curved section 20 has a certain requirement, so as to avoid contact with the heating element 50. In the embodiment of fig. 3, the plate 40 is omitted and the heat generated by the heating element 50 is conducted to the cold medium in the through-duct, which conducts the heat directly out through the phase change cycle.

Further, as shown in fig. 4, there are also two sheet structures 10 in the embodiment of fig. 4, and the two sheet structures 10 are arranged side by side, wherein the arc segment 20 (i.e., the blown arc structure) on one sheet structure 10 is arranged toward the heat generating element 50, and the arc segment 20 (i.e., the blown arc structure) on the other sheet structure 10 is arranged away from the heat generating element 50. However, in the embodiment of fig. 4, the connection between the plate structure 10 and the bending edge 30, where the arc segments 20 are arranged toward the heating element 50, is a right-angle transition (as shown by B in fig. 4), and the connection is not provided with the arc segments 20, that is, in the embodiment, the connection between one plate structure 10 and the bending edge 30 is not provided with the arc segments 20, but the connection between the other plate structure 10 and the bending edge 30 is provided with the arc segments 20, so that a good heat dissipation effect can be achieved.

The phase change radiator in the embodiment can be used for radiating on a television light source, and can also be applied to electronic products such as a 5G communication base station, a lamp box, a display, a computer host and the like and other products with radiating requirements.

To sum up, the utility model discloses a phase change radiator, include: the plate structure is internally provided with a through pipeline, and a refrigerant medium filled in the through pipeline; the plate structure is arranged on a plate body; the through pipe is provided with at least one arc-shaped section, the plate structure is provided with a bending edge, the bending edge is provided with a heating element, and the through pipe extends to the bending edge. The utility model discloses a to link up the pipeline and extend to the limit of buckling, owing to buckle the edge and be provided with heating element, consequently reduced the distance between cold medium matter and the heat source, improve the radiating efficiency.

It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. A phase change heat sink, comprising: the plate structure is internally provided with a through pipeline, and a refrigerant medium filled in the through pipeline; the plate structure is arranged on a plate body; the through pipe is provided with at least one arc-shaped section, the plate structure is provided with a bending edge, the bending edge is provided with a heating element, and the through pipe extends to the bending edge.

2. The phase change heat sink as claimed in claim 1, wherein a bent region is provided at a connection of the bent edge and the plate structure, and the arc-shaped segment is provided on the through pipe at the bent region.

3. The phase change heat sink of claim 2, wherein the bend region has a bend angle of 90 °.

4. The phase change heat sink as claimed in claim 1, wherein the through-channel is an inflation molded structure and the arc segment is an inflation arc structure on the through-channel.

5. The phase-change heat sink as claimed in claim 1, wherein the plate body is provided with a heat dissipating structure for radiating or conducting heat to the outside.

6. The phase-change heat sink as claimed in claim 5, wherein the heat dissipation structure comprises a nano heat dissipation coating coated on the board body, or a heat dissipation member disposed on the board body.

7. The phase change heat sink as claimed in claim 4, wherein the inflation arc structure is provided on one side of the plate structure, the inflation arc structure facing the heat generating element.

8. The phase change heat sink as claimed in claim 4, wherein the inflation arc structure is disposed on one side of the plate structure, the inflation arc structure facing away from the heat generating element.

9. The phase change heat sink as claimed in claim 4, wherein the plate structures are arranged in two and side-by-side arrangement, wherein the inflation arc structure on one plate structure is arranged towards the heat generating element and the inflation arc structure on the other plate structure is arranged away from the heat generating element.

10. The phase change heat sink as claimed in claim 9, wherein the connection between the plate structure and the bent edge of the heat generating element is a right angle transition, and the connection is not provided with the inflation arc structure.