CN114483539A

CN114483539A - Heat dissipation assembly and compressor comprising same

Info

Publication number: CN114483539A
Application number: CN202011161976.9A
Authority: CN
Inventors: 刘小强; 邹小刚
Original assignee: Shanghai Highly Electrical Appliances Co Ltd
Current assignee: Shanghai Highly Electrical Appliances Co Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2022-05-13

Abstract

The invention provides a heat dissipation assembly and a compressor comprising the same. The invention is suitable for various compressors using the heat dissipation assembly, and has more targeted and superior heat dissipation effect in wider frequency domain than the prior art.

Description

Heat dissipation assembly and compressor comprising same

Technical Field

The invention relates to the technical field of compressors, in particular to a heat dissipation assembly of a compressor.

Background

The compressor heat dissipation assembly has very important influence on the energy efficiency and the noise level of the compressor and is one of the main links of the optimization of the compressor structure. Compressors are used in air conditioners, heat pumps, clothes dryers and other devices. During the circular telegram operation, because of the existence of copper loss and iron loss of motor itself, the production heat leads to the motor temperature to rise, and the operation in-process simultaneously, the motor is in high temperature high pressure gaseous state refrigerant environment for a long time, and the motor can't in time dispel the heat and cool down, is in the high temperature state always. When the current is the same, the higher the temperature is, the larger the coil winding is, the larger the loss is, the lower the motor efficiency is, and the lower the overall efficiency of the corresponding compressor is. Through the heat dissipation to the compressor housing, reduce the temperature of compressor during operation, can improve the compressor efficiency to a certain extent.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a heat dissipation assembly and a compressor comprising the same, and aims to improve the heat dissipation effect and the working energy efficiency of the existing compressor through the design improvement of the heat dissipation assembly.

The invention provides a heat dissipation assembly for a compressor shell, which comprises a base and fins, wherein the back surface of the base is arc-shaped and is attached to the outer surface of the compressor shell, the outer diameter of the compressor shell is D, and the length L of an arc section of the base meets the following requirements: l is more than or equal to pi D/50 and less than or equal to pi D/5, and the unit is mm.

Optionally, the height of the compressor housing is H, and the height H of the base satisfies H ≤ H, and the unit is mm.

Optionally, the width t of the fin satisfies t being more than or equal to 1 and less than or equal to 5, and the unit is mm.

Optionally, the number n of the fins is more than or equal to 1 and less than or equal to 20.

Optionally, the minimum distance x between each fin and the adjacent fin satisfies 1 ≤ x ≤ 10, and the unit is mm.

Optionally, each of the fins has a first surface and a second surface, the second surface of the fin and the first surface of the fin have a wavy shape, a plurality of wave crests and a plurality of wave troughs are alternately arranged along the length or width direction, the width of the widest part of the fin is t, and an included angle α between the wave crest and a connecting line between two adjacent wave troughs is 65 ° to 110 °.

Optionally, the peak of each fin is opposite to the valley of the adjacent fin, and the valley of each fin is opposite to the peak of the adjacent fin.

Optionally, the width t of the fin is linearly decreased in a direction away from the compressor housing, the length of the fin is R, and the ratio of the width t1 at the narrowest part of the fin to the width t2 at the widest part of the fin satisfies (t2-t1)/R < 0.1.

Optionally, an angle Q between the fin and the base is 75-90, and the unit is degree.

Optionally, the heat dissipation assembly is made of copper, aluminum or copper-aluminum alloy.

The invention provides a compressor, which comprises the heat dissipation assembly.

Compared with the prior art, the invention has the beneficial effects that:

the heat dissipation assembly is more beneficial to the heat dissipation of the shell of the compressor after the structural sizes of the base and the fins are adjusted. The invention is suitable for various compressors using the heat dissipation assembly, and has more targeted and superior heat dissipation effect in wider frequency domain than the prior art.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is an assembled view of the heat dissipation assembly of the present invention;

FIG. 2 is a schematic structural diagram of a heat dissipation assembly of the present invention;

FIG. 3 is a top view of a fin in the heat dissipation assembly of the present invention;

FIG. 4 is a top view of one embodiment of a fin in the heat dissipation assembly of the present invention;

fig. 5 is a top view of an embodiment of a fin in a heat dissipation assembly of the present invention.

Reference numerals

1 outer surface of compressor housing

2 Heat dissipation assembly

11 base

12 fin

13 first surface of fin

Second surface of 14 fins

15 wave crest

16 wave trough

Detailed Description

Hereinafter, a detailed description will be given of embodiments of the present invention. While the invention will be described and illustrated in connection with certain specific embodiments thereof, it should be understood that the invention is not limited to those embodiments. Rather, modifications and equivalents of the invention are intended to be included within the scope of the claims.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and components are not shown in detail in order not to obscure the subject matter of the invention.

As used herein, "vertical" refers to the axial direction of the compressor, "horizontal" refers to a plane parallel to the cross-section of the compressor, and "outward" refers to a direction axially away from the compressor.

In order to solve the above technical problems, the present invention provides a heat dissipation assembly and a compressor. The heat dissipation assembly comprises a base and fins, wherein the back surface of the base is arc-shaped and attached to the outer surface of the shell of the compressor without gaps. The base has a fin projecting radially outward. The inner diameter of the compressor shell is D, and the width L of the heat dissipation assembly satisfies the following conditions: l is more than or equal to pi D/50 and less than or equal to pi D/5, and the unit is mm.

In one embodiment, the height of the compressor shell is H, the height of the base is H, the unit is mm, and H satisfies H ≦ H. In another embodiment, the width of the fin is t, which is expressed in mm, and t is equal to or greater than 1 and equal to or less than 5.

Furthermore, the number n of the fins is more than or equal to 1 and less than or equal to 20. The number of fins is limited by the orientation of the base and the size of the base. When the height of the base is larger than the width of the base, the fins are horizontally arranged, and the effect is better than that of vertically arranging the fins. At this time, the fins have more opportunities to exchange with external air on the whole, the heat exchange is faster, and the heat dissipation effect is better. Conversely, if the height of the base is smaller than the width of the base, the fins are placed vertically, which is superior to the fins placed horizontally.

Optionally, the minimum distance x between each fin and the adjacent fin satisfies 1 ≤ x ≤ 10, and the unit is mm. The density of the fins directly affects the heat dissipation efficiency of the heat dissipation structure. The fins are too sparse, and the surface area of the fins is insufficient; the fin is too inseparable, and the gas that is heated of fin surface is enclosed by the fin structure and closes, is unfavorable for fast circulation, can't accomplish fast and outside air's heat exchange. Both are not good for heat dissipation efficiency. When the minimum spacing x is set between 1mm and 10mm, both the external surface area of the fins and the gas flow through are optimized.

Optionally, as shown in fig. 4, each of the fins has a first surface and a second surface, the second surface of the fin and the first surface of the fin have a wavy shape, and a plurality of alternating peaks and valleys are provided along the length or width direction, and the width of the widest part of the fin is t. The width of the wave crest and the wave trough can be the same or different. But the width of all peaks is uniform. All the wave troughs are uniform in width. The included angle alpha of a connecting line between the wave crest and the two adjacent wave troughs is 65-110 degrees. The amplitude of the wave crest and the wave trough is limited by the connecting line included angle between the wave crest and the two adjacent wave troughs.

In a further embodiment, the peaks of each fin are opposite the valleys of an adjacent fin, and the valleys of each fin are opposite the peaks of an adjacent fin. Therefore, the corresponding distances of all points on the outer surface between each fin and the adjacent fin are consistent, and the smooth heat convection of air is ensured.

Alternatively, as shown in fig. 5, the width t of the fin decreases linearly in the outward direction, the length of the fin in the direction is R, and the ratio of the width t1 at the narrowest part of the fin to the width t2 at the widest part of the fin satisfies (t2-t1)/R < 0.1.

Optionally, as shown in fig. 3, the fins are obliquely arranged on the base, and form an angle Q with the base, wherein Q is greater than or equal to 75 and less than or equal to 90, and the unit is degree. The inclined fins have an advantage in the outer surface area with a constant height R.

The embodiment of the invention also provides a compressor, and the outer surface of the shell of the compressor is provided with any one of the heat dissipation assemblies. The compressor is more efficient in heat dissipation and higher in energy efficiency.

In summary, compared with the prior art, the heat dissipation assembly of the present invention has the following advantages:

firstly, the heat dissipation efficiency of the compressor shell is improved;

and secondly, the temperature of the compressor during working is reduced, and the energy efficiency of the compressor can be improved to a certain extent.

The foregoing is a more detailed description of the invention in connection with specific alternative embodiments, and the practice of the invention should not be construed as limited to those descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. The utility model provides a compressor housing's radiator unit, includes base and fin, the back of base becomes the arc, the back of base is attached in compressor housing's surface, compressor housing's external diameter is D, the circular arc section length L of base satisfies: l is more than or equal to pi D/50 and less than or equal to pi D/5, and the unit is mm.

2. The heat dissipating assembly of claim 1, wherein the compressor housing has a height H and the base has a height H such that H ≦ H in mm.

3. The heat dissipation assembly of claim 1, wherein the width t of the fins satisfies 1. ltoreq. t.ltoreq.5 in mm.

4. The heat dissipation assembly of claim 1, wherein the number n of fins satisfies 1 ≦ n ≦ 20.

5. The heat dissipation assembly of claim 1, wherein the minimum spacing x between each fin and the adjacent fin satisfies 1 ≦ x ≦ 10 in mm.

6. The heat dissipating assembly of claim 1, wherein each of the fins has a first surface and a second surface, the second surface of the fin and the first surface of the fin have a wavy shape, and a plurality of peaks and a plurality of valleys alternate in a length direction or a width direction, a width of a widest portion of the fin is t, and an included angle α between a peak and a connecting line between two adjacent valleys is 65 ° to 110 °.

7. The heat sink assembly of claim 6, wherein said peak of each of said fins is opposite said valley of an adjacent of said fins, and said valley of each of said fins is opposite said peak of an adjacent of said fins.

8. The heat dissipation assembly of claim 1, wherein the width t of the fins decreases linearly in a direction away from the compressor housing, the length of the fins is R, and the ratio of the width t1 at the narrowest point to the width t2 at the widest point of the fins satisfies (t2-t1)/R < 0.1.

9. The heat dissipation assembly of claim 1, wherein the fins are angled from the base by an angle Q of 75 ° Q90 in degrees.

10. The heat dissipating assembly of claim 1, wherein the heat dissipating assembly is made of copper, aluminum, or copper aluminum alloy.

11. A compressor, characterized by comprising a heat dissipating assembly according to any one of claims 1 to 10.