CN112393484A

CN112393484A - Airflow hood

Info

Publication number: CN112393484A
Application number: CN201910758090.3A
Authority: CN
Inventors: 洪文祥; 杨俊波
Original assignee: Hongfujin Precision Industry Wuhan Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Wuhan Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2021-02-23

Abstract

The utility model provides an airflow cover for locate on the support plate and dispel the heat to a plurality of heating element on the support plate, airflow cover is including locating the dustcoat on the support plate, dustcoat and support plate enclose jointly and establish and form hollow heat dissipation channel, airflow cover's both ends opening is as heat dissipation channel's air intake and air outlet, airflow cover still includes the space bar, the space bar is located on the inner wall of dustcoat, be used for separating heat dissipation channel for a plurality of mutually independent airflow channel, each heating element is located a corresponding airflow channel, each airflow channel's both ends communicate with air intake and air outlet respectively. The air flow cover separates traditional single heat dissipation channel into a plurality of air flow channels through the partition plate, so that only one heating element is arranged in each air flow channel, when cold air is poured into the air flow channel for heat dissipation, the heat dissipation among the heating elements is not affected, and the heat dissipation effect is effectively enhanced.

Description

Airflow hood

Technical Field

The invention relates to the field of electronics, in particular to an airflow cover for heat dissipation.

Background

The traditional airflow cover is generally designed in a straight-through manner, and cold air enters the airflow cover from an air inlet and sequentially flows through heating elements in the airflow cover, so that hot air generated by the heat dissipation of the heating elements is taken out from the air outlet. However, when there are a plurality of heating elements in the airflow cover, the heating element near the air inlet contacts the cold airflow first, so the heat dissipation effect is better, and the heating element near the air outlet contacts the hot air coming out from the front heating element, so the heat dissipation effect of the rear heating element is poor. Meanwhile, because the rear heating element has poor heat dissipation, the temperature in the airflow hood can rise, and the heat dissipation effect of the front heating element can be influenced.

Disclosure of Invention

In view of the above, it is desirable to provide a new airflow hood, which can effectively dissipate heat generated by the heat generating elements.

The utility model provides an airflow cover, it is right to be used for locating on the support plate a plurality of heating element on the support plate dispel the heat, airflow cover is including locating outer housing on the support plate, outer housing with the support plate encloses jointly and establishes and form hollow heat dissipation channel, airflow cover's both ends opening conduct heat dissipation channel's air intake and air outlet, airflow cover still includes the space bar, the space bar is located on outer housing's the inner wall, be used for with heat dissipation channel separates for a plurality of mutually independent airflow channel, each heating element is located a correspondence in the airflow channel, each airflow channel's both ends respectively with the air intake with the air outlet intercommunication.

Further, the heating element comprises a first heating element and a second heating element, the first heating element is close to the air inlet, and the second heating element is close to the air outlet; the airflow channel comprises a first airflow channel and a second airflow channel, the first heat generating element is positioned in the first airflow channel, and the second heat generating element is positioned in the second airflow channel; the first air flow channel and the second air flow channel are arranged in a mutually spaced and crossed mode.

Further, the first air flow channel includes a first front channel, a first rear channel, and a first connecting channel; the first front channel is communicated with the air inlet, the first rear channel is communicated with the air outlet, the first connecting channel is communicated with the first front channel and the first rear channel, and the first heating element is positioned in the first front channel.

Further, the second airflow passage includes a second front passage, a second rear passage, and a second connecting passage; the second front channel is communicated with the air inlet, the second rear channel is communicated with the air outlet, the second connecting channel is communicated with the second front channel and the second rear channel, and the second heating element is located in the second rear channel.

Further, the first front channel is located right below the second front channel, the first rear channel is located right above the second rear channel, and the first connecting channel and the second connecting channel are arranged in a crossed manner.

Furthermore, the first connecting channel comprises two branch channels arranged at intervals, and two ends of each branch channel are respectively connected with and conduct the first front channel and the first rear channel; the second connecting channel is positioned between two branch channels, and the second connecting channel and each branch channel are crossed and inclined into an X shape.

Compared with the prior art, the airflow cover divides the traditional single heat dissipation channel into the plurality of airflow channels through the partition plates, so that only one heating element is arranged in each airflow channel, when cold air is filled for heat dissipation, heat dissipation among the heating elements is not affected, and the heat dissipation effect is effectively enhanced.

Drawings

Fig. 1 is a perspective view of an airflow hood according to an embodiment of the present invention.

FIG. 2 is a schematic view of a first airflow channel of the airflow hood shown in FIG. 1.

FIG. 3 is a schematic view of a second airflow passage of the airflow hood shown in FIG. 1.

Description of the main elements

Airflow hood	100
		Outer cover shell	10
Air inlet	11
		Air outlet	12
Top board	13
		Side plate	14
Partition board	20
		Heat dissipation channel	30
Air flow channel	40
		A first air flow passage	41
First front passage	411
		First rear channel	412
First connecting channel	413
		Branch channel	4131
Second air flow channel	42
		Second front channel	421
Second rear channel	422
		Second connecting channel	423
Support plate	200
		Heating element	300
First heat generating element	310
		Second heating element	320
Fan with cooling device	400

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The invention provides an airflow cover which is used for being arranged on a carrier plate to dissipate heat of a plurality of heating elements on the carrier plate, the airflow cover comprises an outer cover shell arranged on the carrier plate, the outer cover shell and the carrier plate jointly enclose a hollow heat dissipation channel, openings at two ends of the airflow cover are used as an air inlet and an air outlet of the heat dissipation channel, the airflow cover also comprises a partition plate, the partition plate is arranged on the inner wall of the outer cover shell and used for dividing the heat dissipation channel into a plurality of mutually independent airflow channels, each heating element is positioned in one corresponding airflow channel, and two ends of each airflow channel are respectively communicated with the air inlet and the air outlet.

Some embodiments of the invention are described in detail. In the following embodiments, features of the embodiments may be combined with each other without conflict.

Referring to fig. 1 to 3, an embodiment of the invention provides an airflow hood 100 configured on a carrier 200 to dissipate heat of a plurality of heat generating elements 300 disposed on the carrier 200. In this embodiment, the carrier board 200 is a circuit board, and the heat generating component 300 is a functional component electrically connected to the circuit board.

The airflow hood 100 includes an outer casing 10 and a plurality of partition plates 20. The outer casing 10 is disposed on the carrier 200 to house the heat generating element 300 therein. Two ends of the outer housing 10 are provided with an air inlet 11 and an air outlet 12 which are opposite. The outer casing 10 and the carrier 200 together enclose a hollow heat dissipation channel 30. The two ends of the heat dissipation channel 30 are the air inlet 11 and the air outlet 12, respectively. The partition plate 20 is disposed on the inner wall of the outer casing 10 to divide the heat dissipation channel 30 into a plurality of independent airflow channels 40. Each of the heat generating elements 300 is located in one of the corresponding airflow channels 40, and two ends of each of the airflow channels 40 are respectively communicated with the air inlet 11 and the air outlet 12.

In the present embodiment, the airflow hood 100 is used to simultaneously dissipate heat generated by two parallel heating elements 300. Two of the heat generating elements 300 are arranged along the air flow direction of the heat dissipation channel 30.

Specifically, the two heat generating elements 300 include a first heat generating element 310 and a second heat generating element 320. The first heat generating element 310 is close to the air inlet 11, and the second heat generating element 320 is close to the air outlet 12. The air flow passage 40 includes a first air flow passage 41 and a second air flow passage 42. The first heat generating element 310 is located in the first air flow path 41, and the second heat generating element 320 is located in the second air flow path 42. The first air flow channel 41 and the second air flow channel 42 are spaced apart from each other and arranged to intersect.

The first air flow path 41 includes a first front path 411, a first rear path 412, and a first connection path 413. The first front passage 411 is communicated with the intake vent 11, the first rear passage 412 is communicated with the exhaust vent 12, the first connection passage 413 is communicated with the first front passage 411 and the first rear passage 412, and the first heat generating element 310 is located in the first front passage 411.

In particular, the outer casing 10 is U-shaped, comprising a top plate 13 and two side plates 14. The first front channel 411 is close to the air inlet 11 and is formed by the partition 20, a portion of the two side plates 14 and a portion of the carrier plate 200. The first rear channel 412 is close to the air outlet 12 and is formed by the partition 20, a part of the two side plates 14 and a part of the top plate 13. The first connecting channel 413 is located in the middle of the heat dissipating channel 30, and is formed by the partition 20 and a portion of the two side plates 14.

In the present embodiment, the first connecting channel 413 includes two branch channels 4131 arranged at intervals. Each of the branch passages 4131 is defined by the partition plate 20 and a portion of one of the side plates 14. Both ends of each of the branch channels 4131 are respectively connected to and communicate with the first front channel 411 and the first rear channel 412.

The second air flow path 42 includes a second front path 421, a second rear path 422, and a second connection path 423. The second front passage 421 is communicated with the air inlet 11, the second rear passage 422 is communicated with the air outlet 12, the second connecting passage 423 is communicated with the second front passage 421 and the second rear passage 422, and the second heating element 320 is located in the second rear passage 422.

The second front passage 421 is close to the air inlet 11 and is formed by the partition 20, a portion of the two side plates 14 and a portion of the top plate 13. The second rear channel 422 is close to the air outlet 12, and is formed by enclosing the partition 20, a part of the two side plates 14 and a part of the carrier plate 200. The second connecting channel 423 is located in the middle of the heat dissipating channel 30, and is surrounded by the partition plate 20.

In the present embodiment, the first front duct 411 is located directly below the second front duct 421, the first rear duct 412 is located directly above the second rear duct 422, and the first connection duct 413 and the second connection duct 423 intersect with each other. Specifically, the second connection channel 423 is located between the two branch channels 4131 of the first connection channel 413. The second connection channel 423 is cross-inclined with each of the branch channels 4131 in an "X" shape.

When heat dissipation operation needs to be carried out: the fan 400 or other devices fill cold air into the airflow hood 100 from the air inlet 11, and the cold air enters each airflow channel 40 from the air inlet 11 to take heat generated by the heating element 300 in the airflow channel 40 out of the air outlet 12.

Compared with the prior art, the airflow cover 100 of the present invention divides the conventional single heat dissipation channel 30 into the plurality of airflow channels 40 through the partition plate 20, so that only one heating element 300 is disposed in each airflow channel 40, and when cold air is poured to dissipate heat, heat dissipation between the heating elements 300 is not affected, thereby effectively enhancing heat dissipation effect.

It is understood that various other changes and modifications may be made by those skilled in the art based on the technical idea of the present invention, and all such changes and modifications should fall within the protective scope of the claims of the present invention.

Claims

1. The utility model provides an airflow cover for locate on the support plate right a plurality of heating element on the support plate dispel the heat, airflow cover is including locating outer housing on the support plate, outer housing with the support plate encloses jointly and establishes and form hollow heat dissipation channel, airflow cover's both ends opening does heat dissipation channel's air intake and air outlet, its characterized in that: the airflow cover further comprises a partition plate, the partition plate is arranged on the inner wall of the outer cover shell and used for dividing the heat dissipation channel into a plurality of mutually independent airflow channels, each heating element is located in one corresponding airflow channel, and two ends of each airflow channel are respectively communicated with the air inlet and the air outlet.

2. The airflow hood of claim 1 wherein said heat generating components include a first heat generating component and a second heat generating component, said first heat generating component being proximate said intake opening and said second heat generating component being proximate said outlet opening; the airflow channel comprises a first airflow channel and a second airflow channel, the first heat generating element is positioned in the first airflow channel, and the second heat generating element is positioned in the second airflow channel; the first air flow channel and the second air flow channel are arranged in a mutually spaced and crossed mode.

3. The airflow hood of claim 2 wherein said first airflow channel comprises a first front channel, a first rear channel, and a first connecting channel; the first front channel is communicated with the air inlet, the first rear channel is communicated with the air outlet, the first connecting channel is communicated with the first front channel and the first rear channel, and the first heating element is positioned in the first front channel.

4. The airflow hood of claim 3 wherein said second airflow passage includes a second front passage, a second rear passage, and a second connecting passage; the second front channel is communicated with the air inlet, the second rear channel is communicated with the air outlet, the second connecting channel is communicated with the second front channel and the second rear channel, and the second heating element is located in the second rear channel.

5. The airflow hood of claim 4 wherein said first front duct is directly below said second front duct and said first rear duct is directly above said second rear duct, said first connecting duct being disposed across said second connecting duct.

6. The airflow hood as claimed in claim 5, wherein said first connecting channel comprises two spaced branch channels, each of which has two ends connected to and communicating with said first front channel and said first rear channel, respectively; the second connecting channel is positioned between two branch channels, and the second connecting channel and each branch channel are crossed and inclined into an X shape.