CN211178083U

CN211178083U - Novel inflation formula aluminium temperature-uniforming plate

Info

Publication number: CN211178083U
Application number: CN201922146122.2U
Authority: CN
Inventors: 张明; 石俊; 江菊生; 胡明敏
Original assignee: Dongguan Wanwei Heat Transfer Technology Co ltd
Current assignee: Dongguan Wanwei Heat Transfer Technology Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-08-04
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a novel inflation type aluminum temperature-equalizing plate, which comprises a shell, wherein one side of the shell is a heat source end; the shell is negative pressure and is filled with working media, and a plurality of drainage channels are arranged in the shell; the drainage channel is obliquely arranged, and the oblique direction is from high to low to the heat source end; the condensed working medium flows to the heat source end along the drainage channel; the evaporated working medium is far away from the heat source end along the drainage channel. In the utility model, by arranging the drainage channel which inclines from high to low to the heat source end, the condensed working medium is guided to the heat source end, the evaporated working medium is guided away from the heat source end, the temperature difference between the left side and the right side of the shell is reduced, and the heat dispersion performance is improved; meanwhile, the condensed working medium is well supplemented to the upper part of one side, close to the heat source end, in the shell, so that the heat of an upper heat source is taken away, the temperature of the upper heat source is effectively reduced, the vertical temperature difference of the shell is further reduced, and the heat dissipation performance is improved.

Description

Novel inflation formula aluminium temperature-uniforming plate

Technical Field

The utility model relates to an electron radiator field technical field especially indicates a novel roll-bond aluminum temperature-uniforming plate.

Background

Along with the improvement of the performance of various communication and electronic products, the power of a chip is increased, the heat flux density is increased, the required heat dissipation area is larger, the heat dissipation area is limited by space and weight, the heat dissipation area of a heat radiator is limited within a specified range, and the heat conduction capability of the heat radiator can be only improved in order to solve the problem of heat dissipation.

In the prior art, as shown in fig. 1, the roll-bond type temperature-uniforming plate includes a housing 10, a negative pressure is formed in the housing and a working medium 12 is injected into the housing, a channel 13 obtained by roll-bonding is further provided in the housing, and the working medium 12 is evaporated and condensed in the channel 13. The channels 13 in the inflatable vapor chamber are generally criss-cross, through-going up, down, left, and right. After being evaporated, the working medium 12 is diffused to the top of the shell 10 along the channel 13 (in the direction of the dotted arrow in the figure), after being condensed, the working medium 12 flows back to the bottom of the shell 10 along the channel 13 (in the direction of the solid arrow in the figure) under the action of gravity, and is heated and recycled by the lower heat source 22, and the upper heat source 21 cannot be cooled, so that the heat dissipation performance and the temperature difference between the upper part and the lower part of the shell are large.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is according to above-mentioned prior art not enough, provide a novel inflation formula aluminium temperature-uniforming plate, solved current inflation formula temperature-uniforming plate heat dispersion poor and the casing about the big problem of difference in temperature.

The technical scheme of the utility model is realized like this:

a novel roll-bond aluminum temperature-uniforming plate comprises a shell, wherein a heat source end is arranged on one side of the shell; the shell is negative pressure and filled with working media, and a plurality of drainage channels are arranged in the shell; the drainage channel is obliquely arranged, and the oblique direction is from high to low to the heat source end; the condensed working medium flows to the heat source end along the drainage channel; the evaporated working medium is far away from the heat source end along the drainage channel.

In a further technical scheme, a backflow channel is further arranged in the shell, the backflow channel is arranged on one side, close to the heat source end, in the shell, and the backflow channel is communicated with lower ports of the drainage channels; and the condensed working medium flows out from the lower ports of the plurality of drainage channels and enters the backflow channel to be collected and refluxed.

In a further technical scheme, a diffusion channel is further arranged in the shell, the diffusion channel is arranged on one side, far away from the heat source end, in the shell, and the diffusion channel is communicated with upper ports of the drainage channels; and the evaporated working medium is diffused from the upper ports of the plurality of drainage channels and enters the diffusion channels to be collected and diffused.

In a further technical scheme, the drainage channel is at least communicated with a diversion channel, and the upper drainage channel is communicated with the lower drainage channel through the diversion channel; the condensed working medium flows into a drainage channel below along the diversion channel; and the evaporated working medium is diffused into the upper drainage channel along the flow distribution channel.

In a further technical scheme, the upper and lower adjacent shunting channels are distributed in a staggered manner.

In a further technical scheme, a plurality of drainage channels are distributed in parallel.

In a further technical scheme, the drainage channels are distributed in a non-parallel mode but do not intersect.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model reside in that:

by arranging the drainage channel which inclines from high to low to the heat source end, the condensed working medium is guided to the heat source end, and the evaporated working medium is guided away from the heat source end, so that the left-right temperature difference of the shell is reduced, and the heat dissipation performance is improved; meanwhile, the condensed working medium is well supplemented to the upper part of one side, close to the heat source end, in the shell, so that the heat of an upper heat source is taken away, the temperature of the upper heat source is effectively reduced, the vertical temperature difference of the shell is further reduced, and the heat dissipation performance is improved.

The backflow channel can concentrate working media after cold flow, and the diffusion channel can concentrate evaporated working media, so that vapor and liquid are effectively separated, the working media are quickly condensed and evaporated, and the heat dissipation performance is improved.

The flow distribution channel can provide sufficient space, so that the evaporated working medium is uniformly diffused upwards, the temperature difference in the shell is reduced, and the heat dissipation performance is improved.

The upper and lower adjacent shunting channels are distributed in a staggered manner, so that cold-flowing working media can flow in one or more drainage channels all the time and finally lead to the heat source end, and the cold-flowing working media are prevented from directly flowing back to the bottom of the shell along the channels under the action of gravity.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a roll-bond type vapor chamber in the prior art.

Fig. 2 is a schematic structural diagram of the first embodiment.

Fig. 3 is a schematic structural diagram of the second embodiment.

In fig. 1-3, the direction of the solid line arrow is the movement direction of the condensed working medium, and the direction of the dotted line arrow is the movement direction of the evaporated working medium.

In the figure, 10-shell, 11-heat source end, 12-working medium, 13-channel, 21-upper heat source, 22-lower heat source, 31-drainage channel, 32-reflux channel, 33-diffusion channel and 34-shunt channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 2, the first embodiment of the present invention provides a novel roll-bond aluminum vapor chamber, which comprises a housing 10, wherein a heat source end 11 is arranged on one side of the housing 10. An upper heat source 21 and a lower heat source 22 are externally attached to the heat source end 11. The shell 10 is internally provided with negative pressure and working media 12, and a plurality of drainage channels 31 are arranged in the shell 10.

The drainage channel 31 is obliquely arranged, and the oblique direction is from high to low to incline towards the heat source end 11; the condensed working medium 12 flows to the heat source end 11 along the drainage channel 31 under the action of gravity; the evaporated working medium 12 is far away from the heat source end 11 along the flow guide channel 31 through gas diffusion movement. Further, the temperature difference between the left and right sides of the case 10 is reduced, and the heat dissipation performance is improved. Meanwhile, the condensed working medium 12 is well supplemented to the upper part of the side, close to the heat source end 11, in the shell 10, so that the heat of the upper heat source 21 is taken away, the temperature of the upper heat source 21 is effectively reduced, the temperature difference between the upper part and the lower part of the shell 10 is further reduced, and the heat radiation performance is improved.

A backflow channel 32 is further arranged in the shell 10, the backflow channel 32 is arranged on one side, close to the heat source end 11, in the shell 10, and the backflow channel 32 is communicated with lower ports of the drainage channels 31; the condensed working medium 12 flows out from the lower ports of the plurality of drainage channels 31 and enters the return channel 32 to be collected and returned. In the first embodiment, return channel 32 is arranged perpendicular to the horizontal plane of working medium 12. It should be noted that the partially evaporated working medium 12 may also diffuse in the return channel 32.

The casing 10 is also internally provided with a diffusion channel 33, the diffusion channel 33 is arranged on one side, far away from the heat source end 11, of the casing 10, and the diffusion channel 33 is communicated with the upper ports of the plurality of drainage channels 31; the evaporated working medium 12 diffuses out from the upper ports of the plurality of drainage channels 31 and enters the diffusion channel 33 to be collected and diffused. In the first embodiment, the diffusion channel 33 is arranged perpendicular to the horizontal plane of the working medium 12. It should be noted that the partially condensed working medium 12 may also flow downward in the diffusion channel 33.

The backflow channel 32 can concentrate the cold-flow working medium 12, and the diffusion channel 33 can concentrate the evaporated working medium 12, so that vapor and liquid are effectively separated, the working medium 12 is rapidly condensed and evaporated, and the heat dissipation performance is improved.

The drainage channel 31 is at least communicated with a diversion channel 34, and the upper drainage channel 31 is communicated with the lower drainage channel 31 through the diversion channel 34; the condensed working medium 12 flows into the lower drainage channel 31 along the diversion channel 34; the evaporated working medium 12 is diffused into the upper flow guide channel 31 along the flow distribution channel 34.

The flow dividing channel 34 can provide a sufficient space, so that the evaporated working medium 12 is uniformly diffused upwards, the temperature difference in the shell 10 is reduced, and the heat dissipation performance is improved.

The upper and lower adjacent flow dividing channels 34 are distributed in a staggered manner, so that the cold-flowing working medium 12 can always flow in one or more flow guiding channels 31 and finally be guided to the heat source end 11, and the cold-flowing working medium 12 is prevented from directly flowing back to the bottom of the shell 10 along the channels under the action of gravity.

The plurality of flow directing channels 31 may be arranged parallel to each other or the plurality of flow directing channels 31 may be arranged non-parallel to each other but not intersecting. The first embodiment preferably has a plurality of drainage channels 31 running parallel to each other.

As shown in fig. 3, in a second embodiment of the present invention, a novel roll-bond aluminum vapor chamber is provided. The second embodiment has the same main structure as the first embodiment, but is different in the widths and numbers of the flow guiding channel 31, the backflow channel 32, the diffusion channel 33, and the flow dividing channel 34, and thus different patterns are obtained.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel roll-bond aluminum temperature-uniforming plate comprises a shell, wherein a heat source end is arranged on one side of the shell; the shell is negative pressure and filled with working media, and a plurality of drainage channels are arranged in the shell; the method is characterized in that: the drainage channel is obliquely arranged, and the oblique direction is from high to low to the heat source end; the condensed working medium flows to the heat source end along the drainage channel; the evaporated working medium is far away from the heat source end along the drainage channel.

2. The new roll-bond aluminum vapor chamber as claimed in claim 1, wherein: a backflow channel is further arranged in the shell, the backflow channel is arranged on one side, close to the heat source end, in the shell, and the backflow channel is communicated with lower ports of the drainage channels; and the condensed working medium flows out from the lower ports of the plurality of drainage channels and enters the backflow channel to be collected and refluxed.

3. The new roll-bond aluminum vapor chamber as claimed in claim 1, wherein: the shell is internally provided with a diffusion channel, the diffusion channel is arranged on one side, far away from the heat source end, in the shell, and the diffusion channel is communicated with the upper ports of the drainage channels; and the evaporated working medium is diffused from the upper ports of the plurality of drainage channels and enters the diffusion channels to be collected and diffused.

4. The new roll-bond aluminum vapor chamber as claimed in claim 1, wherein: the drainage channel is at least communicated with a diversion channel, and the upper drainage channel is communicated with the lower drainage channel through the diversion channel; the condensed working medium flows into a drainage channel below along the diversion channel; and the evaporated working medium is diffused into the upper drainage channel along the flow distribution channel.

5. The new roll-bond aluminum vapor chamber as claimed in claim 4, wherein: the upper and lower adjacent shunting channels are distributed in a staggered way.

6. The new roll-bond aluminum vapor chamber as claimed in claim 1, wherein: the drainage channels are distributed in parallel.

7. The new roll-bond aluminum vapor chamber as claimed in claim 1, wherein: the drainage channels are distributed in a non-parallel way but do not intersect.