CN212566170U

CN212566170U - Air purifier

Info

Publication number: CN212566170U
Application number: CN202021231597.8U
Authority: CN
Inventors: 高砚庄; 林钦; 刘小平; 何雨涛; 林玉绵
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-02-19
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses an air purifier, including the device that generates heat and a plurality of fin that are connected with the device that generates heat, at least one fin is equipped with the protruding structure that is used for prolonging air current flow path. So set up, when the air current is through the protruding structure on the fin, make the distance that the air current flows increase, and make the air of flowing through become disorderly, promoted the heat transfer area of air on the fin, reduce the air thermal resistance effect, the heat exchange efficiency has been strengthened, reduce the consumption of the energy, it is dull and stereotyped structure to have solved among the prior art radiating fin, the air forms steady flow between radiating fin among the heat transfer process, this kind of flow slows down gradually along with the reduction of the difference in temperature, the problem that the heat exchange efficiency of messenger's air and radiating fin reduces.

Description

Air purifier

Technical Field

The utility model relates to an air purification technical field, more specifically say, relate to an air purifier.

Background

At present, the living quality of people is increasingly improved, the requirement on the air quality is also improved, and the air purifier is suitable for operation. The air purifier has a high-temperature sterilization function, namely, passing air is heated by using high temperature in the air purifier to achieve the sterilization function. The heat that current air purifier will generate heat the device and produce through radiating fin transmits to the air in, but as shown in fig. 1, the radiating fin who uses is the flat structure, and the arrow indicates for the air flow direction in the figure, and the air forms steady flow because of the difference in temperature between fin and the air among the heat transfer process, and this kind of flow gradually slows down along with the reduction of difference in temperature, makes the air thicken gradually, the thermal resistance increases at the boundary that radiating fin surface formed, has influenced heat exchange efficiency. Therefore, how to solve the problem that the heat dissipation fins in the prior art are flat plate structures, and the air forms stable flow between the heat dissipation fins in the heat exchange process, and the flow gradually slows down along with the reduction of the temperature difference, so that the heat exchange efficiency of the air and the heat dissipation fins is reduced, which becomes an important technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air purifier to solve among the prior art radiating fin and be dull and stereotyped structure, the heat transfer in-process air forms steady flow between radiating fin, and this kind of flow slows down along with reducing of the difference in temperature gradually, makes the problem that air and radiating fin's heat exchange efficiency reduced.

The utility model aims at realizing through the following technical scheme:

the utility model provides a pair of air purifier, including generate heat the device and with a plurality of fin that the device that generates heat is connected, at least one the fin is equipped with the protruding structure that is used for prolonging air current flow path.

Preferably, the convex structure is a convex hull convexly arranged on the plane of the heat sink.

Preferably, the longitudinal section of the convex hull is "C" shaped.

Preferably, the convex hull is circular or square in cross-section.

Preferably, the convex hull is a solid convex point.

Preferably, the radiating fin is provided with a through hole, and the protruding structure is a flange which is arranged around the circumference of the through hole and protrudes out of the plane of the radiating fin.

Preferably, the raised structure is a cut tongue protruding out of the plane of the heat sink, and a channel for air flow to pass through is formed between the cut tongue and the heat sink.

Preferably, the heat sink is provided with a plurality of columns of the convex structures.

Preferably, the protruding structures are arranged on both sides of the heat sink.

Preferably, each of the raised structures projects to the same side of the heat sink.

Preferably, the heat sink is formed by a press working.

Preferably, the heating device comprises a heating rod and a heating tube connected with the heating rod, and each cooling fin is provided with an assembly hole for connecting the heating tube and allowing the heating tube to pass through.

The utility model provides an among the technical scheme, an air purifier is including the device that generates heat and a plurality of fin that are connected with the device that generates heat, and at least one fin is equipped with the protruding structure that is used for prolonging air current flow path. So set up, when the air current is through the protruding structure on the fin, make the distance that the air current flows increase, and make the air of flowing through become disorderly, promoted the heat transfer area of air on the fin, reduce the air thermal resistance effect, the heat exchange efficiency has been strengthened, reduce the consumption of the energy, it is dull and stereotyped structure to have solved among the prior art radiating fin, the air forms steady flow between radiating fin among the heat transfer process, this kind of flow slows down gradually along with the reduction of the difference in temperature, the problem that the heat exchange efficiency of messenger's air and radiating fin reduces.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 creative efforts.

FIG. 1 is a cross-sectional view of a prior art heat sink;

fig. 2 is a first perspective view of a heat generating device and a heat sink in an embodiment of the present invention;

fig. 3 is a second perspective view of the heat generating device and the heat sink in the embodiment of the present invention;

FIG. 4 is a front view of the heat generating device and the heat sink in the embodiment of the present invention;

FIG. 5 is a view taken along line A of FIG. 4;

FIG. 6 is a view taken along line B of FIG. 4;

fig. 7 is a perspective view of a heat sink in accordance with a first embodiment of the present invention;

fig. 8 is a front view of a heat sink in accordance with an embodiment of the present invention;

fig. 9 is a top view of a heat sink in accordance with an embodiment of the present invention;

fig. 10 is a left side view of a heat sink according to an embodiment of the present invention;

fig. 11 is a cross-sectional view of a heat sink in accordance with an embodiment of the present invention;

fig. 12 is a perspective view of a heat sink in a second embodiment of the present invention;

fig. 13 is a front view of a heat sink in a second embodiment of the present invention;

fig. 14 is a left side view of a heat sink according to a second embodiment of the present invention;

fig. 15 is a perspective view of a heat sink in a third embodiment of the present invention;

fig. 16 is a front view of a heat sink in a third embodiment of the present invention;

fig. 17 is a left side view of a heat sink in a third embodiment of the present invention;

fig. 18 is a perspective view of a heat sink in the fourth embodiment of the present invention;

fig. 19 is a front view of a heat sink in accordance with a fourth embodiment of the present invention;

fig. 20 is a cross-sectional view of a heat sink according to a fourth embodiment of the present invention.

In fig. 1-20:

1-a heat sink; 2-a raised structure; 3-convex hull; 4-flanging; 5-cutting the tongue; 6-channel; 7-a heating rod; 8-a heating tube; 9-assembly holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of 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.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 2 to 20, the air purifier provided in this embodiment includes a heat generating device and a plurality of heat sinks 1 connected to the heat generating device, and at least one of the heat sinks 1 is provided with a protrusion structure 2 for extending a flow path of an air flow. In a preferred version of the present embodiment, as shown in fig. 2, each fin 1 is provided with a projection structure 2. And fig. 1 is a schematic structural diagram of a heat sink in the prior art, the heat sink is a straight structure, the arrow on the right side in the figure indicates the wind direction, the wind direction is from bottom to top, the wind speed is determined by a control part of the air purifier, the air flowing through the heat sink smoothly flows on the plane of the heat sink, and the passing path is indicated by S. Along with the temperature difference between the radiating fins and the air is gradually reduced, the flow gradually becomes slow, the boundary formed by the air on the surfaces of the radiating fins is gradually thickened, the thermal resistance is increased, the radiating efficiency of the radiating fins is not high, the energy consumption is wasted, and the heat exchange efficiency is influenced. And in this application, when the air current is through the protruding structure on the fin, the area of contact of air and fin on the one hand, heat transfer area increases, make the route that the air current flows through become the curve by the straight line, distance S grow, the extension heat transfer time, the protruding structure of on the other hand makes the air that flows through become disorderly, destroy the flow layer, the contact of reinforcing air and fin, thereby the heat transfer area of air on the fin has been promoted, reduce the air thermal resistance effect, heat exchange efficiency has been improved, the consumption of the energy reduces, it is flat plate structure to have solved among the prior art radiating fin, the air forms steady flow between radiating fin among the heat transfer process, this kind of flow slows down gradually along with the reduction of the difference in temperature, the problem of the heat transfer efficiency reduction of messenger' S air and radiating.

As shown in fig. 7, the convex structure 2 is a convex hull 3 convexly disposed on the plane of the heat sink 1. In the first embodiment, as shown in fig. 11, the longitudinal section of the convex hull 3 is "C" shaped. As shown in fig. 8, the convex hull 3 may have a circular cross-section or may be designed to have a square cross-section for easy manufacturing, although the shape is not limited thereto. Therefore, one side of the convex hull 3 protrudes out of the plane of the radiating fin 1, and the other side of the convex hull forms a groove structure on the plane of the radiating fin 1, when air passes through, as shown in fig. 11, the air on two sides flows along a curved path formed by the convex hull 3, an original stable flow layer is broken, the heat exchange area of the air and the radiating fin is increased, cold air and hot air are mixed, and the heat exchange efficiency is improved. In the arrangement state of the heat dissipation fins as shown in fig. 8, the cross section of the plane parallel to the paper plane and the convex hull is the cross section of the convex hull, and the cross section of the plane perpendicular to the paper plane and the convex hull is the longitudinal section of the convex hull, where fig. 11 is the longitudinal section of the convex hull structure.

In the second embodiment, as shown in fig. 12, the convex hull 3 is a solid convex point, that is, the convex point is pressed out on the plane of the heat sink 1, so that the surface thereof is concave and convex, as shown in fig. 14, when air flows from bottom to top along the direction shown by the arrow, the air advances due to the convex point arrangement, the heat exchange area is increased, and the flowing air becomes turbulent.

In the third embodiment, as shown in fig. 15, the heat sink 1 is provided with a through hole, and the protruding structure 2 is a flange 4 which is circumferentially arranged around the through hole and protrudes out of the plane of the heat sink 1. As shown in fig. 16, air can bypass when encountering the turned-over edge 4, the heat exchange time is prolonged, and due to the existence of the through holes, the flowing air becomes turbulent, the stable flow is broken, other air which is not contacted with the radiating fins 1 is contacted with the radiating fins 1, heat transfer is formed, and the heat exchange efficiency is improved.

In the fourth embodiment, as shown in fig. 18, the protruding structure 2 is a cut tongue 5 protruding out of the plane of the heat sink 1, a channel 6 for air to pass through is formed between the cut tongue 5 and the heat sink 1, which is equivalent to a tear formed on the surface of the heat sink 1, as shown in fig. 20, when air flows from bottom to top, the air is divided and flows through the channel 6 and along the upper surface of the cut tongue, the predetermined flow direction is changed, and cold and hot air can be sufficiently mixed, thereby achieving the purpose of improving the heat dissipation efficiency. Of course, the projection 2 is not limited to the shape of the embodiment, but may be in other forms in order to increase the heat exchange area and to disturb the air flowing through. However, the shape of the protruding structure 2 is not too exaggerated, otherwise noise may be generated, and the user experience may be affected.

In this embodiment, the heat sink 1 is provided with a plurality of rows of protruding structures 2, which can be uniformly arranged on the plane of the heat sink 1, so that the flow path of the air on the surface of the whole heat sink 1 is fully changed, and the heat exchange efficiency is greatly improved. As an alternative embodiment, both sides of the heat sink 1 are provided with raised structures 2. As shown in fig. 3, the convex hulls 3 are uniformly distributed on two sides of the heat sink 1, so that the two sides of the heat sink 1 form a wave-shaped fluctuation structure, the original stable flow is fully broken, and the heat exchange area is increased. In other embodiments, each protruding structure 2 may protrude toward the same side of the heat sink 1, such as a protruding point, a flange 4, a tongue 5, and the like protruding toward the same side of the heat sink 1. The number of the convex structures 2 arranged on the heat sink 1 can be determined according to the actual heat dissipation requirement, and the shapes of the convex structures can be different and can be determined according to the processing technology.

In actual processing, the radiating fin 1 is formed by compression processing, the manufacturing process is relatively simple, only one compression process needs to be added on the basis of the existing flat radiating fin, the protruding structure can be processed, the manufacturing die process can be realized by compression and then trimming, the deformation of the whole radiating fin can be ensured, or the compression and trimming can be carried out simultaneously.

In this embodiment, the heating device includes a heating rod 7 and a heating tube 8 connected to the heating rod 7, and the two heating tubes 8 are symmetrically and parallel arranged and are connected to the heating rod 7. The heating rod 7 is electrified and heated to enable the heating tube 8 to generate high temperature, and the heating tube exchanges heat with the surrounding air through the cooling fins 1 connected with the heating tube, so that the air is heated, and the effect of high-temperature sterilization is achieved. Each of the heat radiating fins 1 is provided with a fitting hole 9 for connecting the heating tube 8 and for passing the heating tube 8. During installation, the assembling hole 9 is aligned with the heating tube 8 and then penetrates to a required position, as shown in fig. 4, good contact is guaranteed, heat of the heating device is well transferred to the radiating fin, and then the radiating fin can be fixed through spot welding, so that connection firmness is guaranteed. The number of the radiating fins and the distance between the radiating fins are determined according to the power of the air purifier, and theoretically, the larger the number of the radiating fins is, the better the radiating fins are, but the radiating efficiency does not need to be pursued according to the actual conditions of equipment, such as cost and size of a machine body.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air purifier is characterized by comprising a heating device and a plurality of radiating fins (1) connected with the heating device, wherein at least one radiating fin (1) is provided with a convex structure (2) for prolonging the flow path of air flow.

2. The air cleaner according to claim 1, wherein the convex structure (2) is a convex hull (3) convexly disposed in a plane of the heat sink (1).

3. An air cleaner according to claim 2, characterized in that the longitudinal section of the convex hull (3) is "C" -shaped.

4. An air cleaner according to claim 3, characterized in that the cross-section of the convex hull (3) is circular or square.

5. An air cleaner according to claim 2, characterized in that the convex hull (3) is a solid convex point.

6. The air cleaner of claim 1, wherein the heat sink (1) is provided with a through hole, and the protrusion (2) is a flange (4) circumferentially arranged around the through hole and protruding out of the plane of the heat sink (1).

7. The air cleaner of claim 1, wherein the raised structure (2) is a cut-out (5) protruding out of the plane of the heat sink (1), the cut-out (5) and the heat sink (1) forming a channel (6) therebetween through which the air flow passes.

8. The air cleaner according to claim 1, wherein the heat sink (1) is provided with a plurality of columns of the projection structures (2).

9. The air cleaner according to claim 8, wherein the protrusion structures (2) are provided on both sides of the heat sink (1).

10. The air cleaner of claim 8, wherein each of the raised structures (2) projects toward the same side of the heat sink (1).

11. The air cleaner of claim 1, wherein the heat sink (1) is formed by a press working.

12. The air purifier as claimed in claim 1, wherein the heat generating means comprises a heat generating rod (7) and a heat generating tube (8) connected to the heat generating rod (7), and each of the heat radiating fins (1) is provided with a fitting hole (9) for connecting the heat generating tube (8) and for passing the heat generating tube (8).