CN210428337U

CN210428337U - Heat dissipation device capable of improving air outlet

Info

Publication number: CN210428337U
Application number: CN201921011818.8U
Authority: CN
Inventors: 何克锋; 徐海
Original assignee: Kunshan Ping Tai Electronic Co ltd
Current assignee: Kunshan Ping Tai Electronic Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-04-28
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses an improve heat abstractor of air-out, include: the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with an upper air inlet, a lower air inlet, an air outlet channel and a plurality of air outlets distributed along the circumferential direction, which are communicated with the interior of the shell, and the air outlets are arranged on the other side opposite to the air outlet channel; the fan is coaxially arranged in the shell between the upper air inlet and the lower air inlet; the heat dissipation assembly is arranged at the air outlet channel; the heat conducting pipe is provided with a heat dissipation part and a heat absorption part which are integrally connected, and the heat dissipation part is closely attached to the heat dissipation component; and the heat conducting sheet is closely attached to the heat absorbing part. The utility model discloses beneficial effect who has: the mode of setting up the air outlet through circumference one side at the casing has improved the fan air-out for the cooling air not only can dispel the heat to the fin, but also can dispel the heat to the heat pipe that is close to the air outlet, has improved the radiating efficiency, has promoted heat dispersion.

Description

Heat dissipation device capable of improving air outlet

Technical Field

The invention belongs to the technical field of computer parts, and particularly relates to a heat dissipation device for improving air outlet.

Background

The heat dissipation device of a notebook computer is used for dissipating heat and cooling heat generated by a heat generating component on a motherboard, and generally, the power of a CPU and a graphics card on the motherboard of the computer is increased along with the performance improvement, so for some notebook computers with high configuration and high performance, the heat dissipation problem of the motherboard becomes one of the major research directions of many manufacturers at present.

Because the notebook computer and the desktop computer have different sizes, in order to highlight the portability of the notebook computer, the heat dissipation device usually adopts a structure completely different from that of the desktop computer to dissipate heat of the notebook computer.

In the prior art, a heat dissipation device of a notebook computer comprises a shell, a copper pipe, a heat conducting fin and a heat dissipation fin; the shell is internally provided with a fan, the shell is provided with a unilateral air outlet, the radiating fins are arranged at the air outlet, the copper pipe is connected with the heating component through the heat conducting fins to form a heat conducting path, and the end part of the copper pipe is connected with the radiating fins to form the heat conducting path. When the notebook computer works, the CPU and the display card are heated to generate a large amount of heat at the same time, the copper pipe conducts the heat of the two parts to the radiating fins, and then the fan starts to operate. The air is stirred by the blades of the fan and is discharged from the air outlet, and then the air is discharged to the external environment together with the heat emitted from the radiating fins, so that the temperature of the CPU and the display card is reduced. Therefore, although the heat dissipation device can reduce the operating temperature of the CPU and the display card, the structure of the heat dissipation device still has unreasonable places, for example, the heat on the copper pipe is almost completely dissipated through the heat dissipation fins, so that the heat dissipation efficiency is slow, and when the length of the copper pipe is increased, the heat dissipation capacity is obviously reduced. Besides, the casing of the heat dissipation device comprises a metal base and a plastic casing, the two parts are formed by riveting and are connected in a non-detachable mode, and therefore when the fan fails, the fan cannot be maintained independently, the whole heat dissipation device has to be replaced, and therefore maintenance difficulty and cost are high.

To sum up, in order to meet the performance improvement requirement of the notebook computer, the existing heat dissipation device needs to be further optimized and improved.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a heat dissipation device for improving air outlet.

In order to solve the prior art problem, the invention discloses a heat dissipation device for improving air outlet, which comprises:

the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with an upper air inlet, a lower air inlet, an air outlet channel and a plurality of air outlets distributed along the circumferential direction, which are communicated with the interior of the shell, and the air outlets are arranged on the other side opposite to the air outlet channel;

the fan is coaxially arranged in the shell between the upper air inlet and the lower air inlet;

the heat dissipation assembly is arranged at the air outlet channel;

the heat conducting pipe is provided with a heat dissipation part and a heat absorption part which are integrally connected, and the heat dissipation part is closely attached to the heat dissipation component; and

and the heat conducting sheet is closely attached to the heat absorbing part.

Further, the air conditioner is provided with a fan,

the housing includes:

the upper shell is provided with an arc plate body I and a rectangular plate body I which are integrally connected, the edge of the arc plate body I is provided with a plurality of bending parts I which are vertically bent downwards, at least two bending parts I are provided with clamping parts I, the rectangular plate body is tightly attached to the heat dissipation part, and the upper air inlet is formed in the arc plate body I; and

the lower shell is provided with an arc plate body II and a rectangular plate body II which are integrally connected, the arc plate body II is provided with a bending part II which is vertically bent upwards to match with the bending part I provided with the clamping part I, the bending part II is provided with a clamping part II which can be clamped with the clamping part I, and the lower air inlet is formed in the arc plate body II;

the epitheca with the inferior valve passes through joint portion I with joint portion II joint links to each other, the space between the II of bending forms the air outlet, rectangular plate body I with space between the rectangular plate body II forms the exhaust passage.

Further, the air conditioner is provided with a fan,

the shape of the arc plate body II is similar to that of the arc plate body I, and the length of the rectangular plate body II is smaller than that of the rectangular plate body I.

Further, the air conditioner is provided with a fan,

and two sides of the rectangular plate body I are also provided with baffle plates which are vertically bent downwards, and the inner ends of the baffle plates are adjacent to the bent parts I.

Further, the air conditioner is provided with a fan,

the joint portion I is a clamping protrusion arranged on the outer wall of the bending portion I, and the joint portion II is a clamping groove arranged on the inner wall of the bending portion II or a clamping hole communicated with the bending portion II.

Further, the air conditioner is provided with a fan,

the upper shell and the lower shell are both metal plate pieces.

Further, the air conditioner is provided with a fan,

the upper air inlet is a circular hole, the number of the upper air inlets is one, and the upper air inlets are eccentrically arranged on the arc plate body I; the lower air inlets are arc-shaped holes, the number of the lower air inlets is three, the lower air inlets are circumferentially and uniformly distributed on the arc-shaped plate body II by taking an eccentric shaft as an axis, and the eccentric shaft is coaxial with the circle center of the upper air inlet.

Further, the air conditioner is provided with a fan,

the heat dissipation assembly comprises a plurality of heat dissipation fins arranged in parallel, the upper edges of the heat dissipation fins are vertically bent towards one side to form a stepped top wall I and a stepped top wall II, and the top wall I is lower than the top wall II and is tightly attached to the bottom surface of the heat dissipation part of the heat conduction pipe; the lower edge of the radiating fin is vertically bent towards one side to form a bottom wall; the radiating fins are sequentially attached to the top wall I, the top wall II and the bottom wall.

Further, the air conditioner is provided with a fan,

the heat conduction pipe and the heat conduction sheet are both copper parts.

Further, the air conditioner is provided with a fan,

the fan is a centrifugal fan.

The invention has the following beneficial effects:

1. in the invention, the air outlet of the fan is improved by arranging the air outlet at one side of the circumference of the shell, so that cooling air can not only dissipate heat of the radiating fins, but also dissipate heat of the heat conducting pipe close to the air outlet, thereby improving the heat dissipation efficiency and the heat dissipation performance; in addition, because the air outlet at the side of the shell can also radiate other components, the internal temperature of the notebook computer is more balanced, and the area of a high-temperature area is further reduced.

2. According to the invention, the shell is divided into two detachably connected parts, so that the shell can be quickly detached, convenience is provided for internal repair and maintenance, and the detachment cost is reduced.

3. In the invention, the shell is made of metal parts, so that the strength of the shell can be improved, the shell is easy to machine and form, and convenience is provided for detachable connection.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the embodiment of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

FIG. 6 is a top view of the structure of the embodiment shown in FIG. 1;

FIG. 7 is a bottom view of the structure of the embodiment of FIG. 1;

FIG. 8 is a perspective view of the housing of the embodiment of FIG. 1;

FIG. 9 is a schematic diagram of the operation of the embodiment of FIG. 1;

FIG. 10 is a heat distribution simulation diagram of a heat dissipation device in the prior art under operation;

fig. 11 is a heat distribution simulation diagram in an operating state of the present invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 9, a heat dissipation device for improving air output includes: the fan comprises a shell 1, a fan 5, a heat dissipation assembly 6, a heat conduction pipe 4 and a heat conduction sheet 7.

The casing 1 has an upper air inlet 201 and a lower air inlet 302 communicated with the inside thereof, an air outlet channel 101 and a plurality of air outlets 102 distributed along the circumferential direction, and the air outlets 102 are arranged at the other side opposite to the air outlet channel 101. The fan 5 is coaxially arranged inside the housing 1 between the upper air inlet 201 and the lower air inlet 302. The heat dissipation assembly 6 is disposed at the air outlet 101. The heat pipe 4 has a heat dissipating portion 401 and a heat absorbing portion 402 integrally connected to each other, and the heat dissipating portion 401 is in close contact with the heat dissipating unit 6. The heat conductive sheet 7 is in close contact with the heat absorbing portion 402.

In order to facilitate the mounting and dismounting of the housing 1, and to reduce maintenance costs, the housing 1 is divided into two parts which are detachably connected. The housing 1 includes an upper case 2 and a lower case 3. Specifically, the upper case 2 has an arc plate body I206 and a rectangular plate body I205 that are connected integrally, the edge of the arc plate body I206 is provided with a plurality of bending portions I202 that are bent vertically downward, at least two of the bending portions I202 are provided with clamping portions I203, the rectangular plate body I205 is attached to the heat dissipation portion 401, and the upper air inlet 201 is arranged on the arc plate body I206. Inferior valve 3 has integrative circular arc plate body II306 and rectangular plate body II305 that links to each other, and circular arc plate body II306 is equipped with the perpendicular portion II301 of bending that upwards bends in order to match the portion I202 of bending that is equipped with joint portion I203, and portion II301 of bending is equipped with the joint portion II304 that can with joint portion I203 joint, and air intake 302 is located on circular arc plate body II306 down.

The upper shell 2 and the lower shell 3 are connected through a clamping portion I203 and a clamping portion II304 in a clamping mode, an air outlet 102 is formed in a gap between the bending portion I202, and an air outlet channel 101 is formed in a gap between the rectangular plate body I205 and the rectangular plate body II 305.

Further, the arc plate body II306 is similar to the arc plate body I206, and the length of the rectangular plate body II305 is smaller than that of the rectangular plate body I205. The portion of rectangular plate I205 that is extended from rectangular plate II305 is used to connect heat sink 402 of heat pipe 4, and heat sink 402 is fixed between this portion and heat sink unit 6.

Furthermore, two sides of the rectangular plate body I205 are also provided with baffle plates 204 bent vertically downward, and the inner ends of the baffle plates 204 are adjacent to the bent portions I202. The baffle 204 may enable a portion of the cooling wind to be rapidly discharged under the guidance of the air outlet duct 101.

Further, the clamping portion I203 is a clamping protrusion disposed on the outer wall of the bending portion I202, and the clamping portion II304 is a clamping groove disposed on the inner wall of the bending portion II301 or a clamping hole penetrating through the bending portion II 301. Bending portion I202 and bending portion II301 are thinner structural bodies, consequently have certain elastic deformation ability, and when last casing 2 and inferior valve 3 were connected, the protruding card of bending portion I202 goes into the draw-in groove or the downthehole restraint that forms axial and circumference on the bending portion II301 to form firm joint relatively. When the device is disassembled, the clamping bulges are separated from the clamping grooves or the clamping holes through slight deformation of the bending parts I202 and II301, so that the upper shell 2 and the lower shell 3 can be separated. As the same structure, the positions of the clamping protrusion, the clamping groove and the clamping hole can be interchanged to realize clamping, so that the details are not repeated.

Further, the upper case 2 and the lower case 3 are both metal plate members. On the one hand, the overall strength of the shell is improved, on the other hand, the processing and forming of the bending part are facilitated, the heat conduction pipe has the conduction capability, and the heat on the heat conduction pipe 4 can be dispersed to further improve the heat dissipation capability.

Further, the upper air inlets 201 are round holes, the number of the upper air inlets is one, and the upper air inlets 201 are eccentrically arranged on the arc plate body I206; the lower air inlets 302 are arc-shaped holes, the number of the lower air inlets is three, the lower air inlets 302 are circumferentially and uniformly distributed on the arc plate body II306 by taking an eccentric shaft as an axis, and the eccentric shaft is coaxial with the circle center of the upper air inlet 201.

Further, the heat dissipation assembly 6 includes a plurality of heat dissipation fins 602 arranged in parallel, the upper edges of the heat dissipation fins 602 are perpendicularly bent to one side to form a stepped top wall I603 and a stepped top wall II604, and the top wall I603 is lower than the top wall II604 and is tightly attached to the bottom surface of the heat dissipation portion 401 of the heat conduction pipe 4; the lower edge of the heat sink 602 is vertically bent to one side to form a bottom wall 601; the heat sink fins 602 are closely attached to each other in sequence through a top wall I603, a top wall II604, and a bottom wall 601.

Further, the heat conduction pipes 4 and the heat conduction fins 7 are both copper members, and have good heat conduction performance and processability.

Further, the fan 5 is a centrifugal fan.

As shown in fig. 9, the heat-conducting sheet 7 is in close contact with a heat-generating component to establish a heat conduction path, such as a CPU, a graphics card chip, or the like. These heat generating components generate a large amount of heat during operation, so that the heat conducting sheet 7 is heated, and the heat conducting sheet 7 conducts the heat to the heat absorbing portion 402 of the heat conducting pipe 4, and at this time, the heat is conducted to the heat dissipating portion 401 along the extending direction of the heat conducting pipe 4, and finally conducted to the heat dissipating assembly 6. In this process, the fan 5 is always in an operating state, and the blades thereof discharge the air entering the housing 1 from the upper inlet 201 and the lower inlet 302 through the air outlet duct 101 and the air outlet 102.

The temperature of the cooling air discharged from the air outlet duct 101 is low, and a large amount of heat emitted from the heat dissipation assembly 6 is wrapped and discharged to the external environment, so that the heat dissipation portion 401 of the heat pipe 4 is at a low temperature. In this way, the temperature generated by the heat generating component is effectively reduced. On the other hand, the cooling air discharged from outlet 102 is blown to the peripheral side of case 1, and a part of the cooling air dissipates heat from other components in the region through which the cooling air flows and lowers the temperature, and another part of the cooling air passes through the intermediate portion of heat transfer pipe 4 and carries away heat from a part of heat transfer pipe 4, thereby further lowering the temperature of heat transfer pipe 4 from the part to heat dissipation portion 401. Thus, the heat dissipation efficiency of the heat pipe 4 is improved, and the heat dissipation effect is improved.

As shown in fig. 10, in the heat dissipation device of the prior art, the heat of the heat generating component is totally dissipated by the heat dissipation fins at the ends of the heat conduction pipes, so that the whole heat conduction pipes are in a relatively high state, and particularly, the temperature of the portions connected with the heat conduction fins reaches 67 ℃, which is poor in heat dissipation efficiency and poor in heat dissipation effect. As shown in fig. 11, in the heat dissipation device of the present invention, the heat of the heat generating component is conducted through the heat pipe, a part of the heat in the middle of the heat pipe is effectively dissipated by the cooling air exhausted from the air outlet, and the rest of the heat is exhausted to the external environment through the dissipation of the heat dissipation assembly 6. Therefore, the overall temperature of the heat conducting pipe 4 is relatively low, especially the temperature of the heat absorbing part 401 is reduced to 54 ℃, the heat dissipation efficiency and the heat dissipation capability are greatly improved, a good low-temperature environment is provided for the heat generating components, and the service life of important components is prolonged.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a heat abstractor of air-out which characterized in that: the method comprises the following steps:

the air conditioner comprises a shell (1), wherein the shell (1) is provided with an upper air inlet (201) and a lower air inlet (302) which are communicated with the interior of the shell, an air outlet channel (101) and a plurality of air outlets (102) which are distributed along the circumferential direction, and the air outlets (102) are arranged on the other side opposite to the air outlet channel (101);

the fan (5), the fan (5) is coaxially arranged in the shell (1) between the upper air inlet (201) and the lower air inlet (302);

the heat dissipation assembly (6), the heat dissipation assembly (6) is arranged at the air outlet channel (101);

the heat conduction pipe (4), the said heat conduction pipe (4) has heat-dissipating part (401) and heat-absorbing part (402) that link integrally, the said heat-dissipating part (401) is closely attached to said heat-dissipating assembly (6); and

and a heat-conducting sheet (7), wherein the heat-conducting sheet (7) is tightly attached to the heat absorbing part (402).

2. The heat sink device for improving wind output according to claim 1, wherein:

the housing (1) comprises:

the heat dissipation device comprises an upper shell (2), wherein the upper shell (2) is provided with an arc plate body I (206) and a rectangular plate body I (205) which are integrally connected, the edge of the arc plate body I (206) is provided with a plurality of bending parts I (202) which are vertically bent downwards, at least two bending parts I (202) are provided with clamping parts I (203), the rectangular plate body I (205) is tightly attached to the heat dissipation part (401), and the upper air inlet (201) is arranged on the arc plate body I (206); and

the lower shell (3) is provided with an arc plate body II (306) and a rectangular plate body II (305) which are integrally connected, the arc plate body II (306) is provided with a bending part II (301) which is vertically bent upwards to match with the bending part I (202) of the clamping part I (203), the bending part II (301) is provided with a clamping part II (304) which can be clamped with the clamping part I (203), and the lower air inlet (302) is arranged on the arc plate body II (306);

go up shell (2) with inferior valve (3) pass through joint portion I (203) with joint portion II (304) joint links to each other, the space between the portion I (202) of bending forms air outlet (102), rectangular plate body I (205) with space between rectangular plate body II (305) forms air-out duct (101).

3. The heat sink device for improving wind output according to claim 2, wherein:

the shape of the arc plate body II (306) is similar to that of the arc plate body I (206), and the length of the rectangular plate body II (305) is smaller than that of the rectangular plate body I (205).

4. The heat sink device for improving wind output according to claim 2, wherein:

two sides of the rectangular plate body I (205) are also provided with baffle plates (204) which are bent downwards vertically, and the inner ends of the baffle plates (204) are adjacent to the bent parts I (202).

5. The heat sink device for improving wind output according to claim 2, wherein:

the clamping portion I (203) is a clamping protrusion arranged on the outer wall of the bending portion I (202), and the clamping portion II (304) is a clamping groove arranged on the inner wall of the bending portion II (301) or a clamping hole penetrating through the bending portion II (301).

6. The heat sink device for improving wind output according to claim 2, wherein:

the upper shell (2) and the lower shell (3) are both metal plate parts.

7. The heat sink device for improving wind output according to claim 2, wherein:

the upper air inlet (201) is a circular hole, the number of the upper air inlets is one, and the upper air inlet (201) is eccentrically arranged on the arc plate body I (206); the lower air inlets (302) are arc-shaped holes, the number of the lower air inlets is three, the lower air inlets (302) are circumferentially and uniformly distributed on the arc-shaped plate body II (306) by taking an eccentric shaft as an axis, and the eccentric shaft is coaxial with the circle center of the upper air inlet (201).

8. The heat sink device for improving wind output according to claim 2, wherein:

the heat dissipation assembly (6) comprises a plurality of heat dissipation fins (602) which are arranged in parallel, the upper edges of the heat dissipation fins (602) are vertically bent towards one side to form a stepped top wall I (603) and a stepped top wall II (604), and the top wall I (603) is lower than the top wall II (604) and is tightly attached to the bottom surface of the heat dissipation part (401) of the heat conduction pipe (4); the lower edge of the radiating fin (602) is vertically bent towards one side to form a bottom wall (601); the radiating fins (602) are sequentially attached to each other through the top wall I (603), the top wall II (604) and the bottom wall (601).

9. The heat sink for improving wind output according to any one of claims 1 to 8, wherein:

the heat conduction pipes (4) and the heat conduction fins (7) are both copper pieces.

10. The heat sink for improving wind output according to any one of claims 1 to 8, wherein:

the fan (5) is a centrifugal fan.