CN115060023B

CN115060023B - Knockout supporting structure and compressor

Info

Publication number: CN115060023B
Application number: CN202210820984.2A
Authority: CN
Inventors: 刘宇琪; 吴健; 陈严兵
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2024-07-02
Anticipated expiration: 2042-07-13
Also published as: CN115060023A

Abstract

The invention provides a knockout support and a compressor, and belongs to the technical field of compressors; the wedge-shaped part adopting the acoustic black hole structure is arranged on the knockout support, and the supersonic wave is converted into subsonic wave, so that broadband waves are gathered in a region with a thinned structure on a certain spatial scale, the effect of inhibiting sound radiation in the structure is achieved, the vibration response of the knockout to the shell can be remarkably reduced, and a good noise reduction effect is obtained.

Description

Knockout supporting structure and compressor

Technical Field

The invention belongs to the technical field of compressors, and particularly relates to a knockout bracket and a compressor.

Background

The knockout is an indispensable component of the rotor compressor, and the knockout mainly has the function of separating gas from liquid and filtering impurities from refrigerant. The liquid separator is connected with the shell of the compressor through the bracket, so that the operation of the compressor can drive the liquid separator to vibrate. In general, the compressor adopts a door-shaped bracket, and straight arm structures extending out of two sides of the bracket are used for restraining and supporting the liquid separator, but the structure has weak rigidity, limited restraining strength for the liquid separator, and easy excitation of medium and low frequency excitation modes of the compressor in medium and low frequency of the compressor, so that resonance radiation is generated to be more noisy. In the prior art, the rigidity of the bracket is enhanced by adopting means such as reinforcing ribs or thickening the bracket on the bracket, or an additional device is designed to enhance the restraint on the liquid dispenser, so that the mode of the liquid dispenser is not easy to excite, and the purposes of vibration reduction and noise reduction are achieved. However, the improvement of the transformation mode is limited, the vibration reduction and noise reduction effects are not obvious in practical application, and on the other hand, the complicated surface is easy to radiate noise, so that new noise is caused.

Disclosure of Invention

Therefore, the invention provides the knockout support and the compressor, and the wedge-shaped part meeting the black hole acoustic structure is arranged on the inner side of the bottom of the support main body of the knockout support, so that the vibration response of the knockout to the shell can be remarkably reduced, and a good noise reduction effect is obtained.

In order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a dispenser stand for connecting a dispenser and a compressor, the dispenser stand including a stand body, a bottom outer side of which is connected to a housing of the compressor, and a vibration reduction unit disposed inside the bottom of the stand body; the vibration reduction unit comprises at least one vibration reduction module, the vibration reduction module comprises a wedge-shaped part, and the wedge-shaped part adopts an acoustic black hole structure.

In some embodiments, the vibration reduction module includes a wedge.

In some embodiments, the vibration reduction module includes two wedge-shaped portions that mate with one another.

In some embodiments, the wedge portion has a length L1 protruding toward the dispenser in the X-axis direction and a width L2 disposed in the Y-axis direction, wherein a ratio of L1 to L2 is 0.6 or more and 1.8 or less.

In some embodiments, taking any point where the height of the wedge portion along the Z-axis direction is 0 as an origin, the height h of the wedge edge of the wedge portion along the Z-axis direction satisfies h (x) =a×x ^m, where h (x) is the height of the wedge edge of the wedge portion at the x point, a is a constant, and a is greater than 0, and m is greater than or equal to 2.

In some embodiments, the length L1 of the wedge protruding toward the dispenser in the X-axis direction is less than the shortest distance of the dispenser to the bottom inside of the holder body.

In some embodiments, the end of the wedge on the side remote from the bottom of the bracket body is provided with a damping coating that dampens vibrations.

In some embodiments, the dispenser support further comprises a clip disposed on an outer periphery of the dispenser, the clip being coupled to the support body to retain the dispenser within a space defined by the clip and the support body.

In some embodiments, the bracket body is provided with a first mating portion and a second mating portion at the open ends thereof, respectively, and the bracket body is connected to the clip through the first mating portion and the second mating portion.

According to another aspect of the present application, an embodiment of the present application also provides a compressor including the above-described knockout support.

Compared with the prior art, the dispenser support structure provided by the invention has at least the following beneficial effects:

According to the invention, the plurality of vibration reduction modules are arranged on the inner side of the bottom of the bracket main body of the liquid dispenser bracket, the vibration reduction modules are formed by matching two wedge-shaped parts, the wedge-shaped parts adopt an acoustic black hole structure, and the heights of the wedge-shaped parts are distributed according to the law of gradually decreasing power indexes, so that the wedge-shaped parts can reduce the propagation speed of waves in the structure and convert supersonic waves into subsonic waves, thereby gathering broadband waves in a region with lower structure height on a certain spatial scale, playing a role in inhibiting sound radiation in the structure, remarkably reducing the vibration response of the liquid dispenser to the shell, and obtaining good noise reduction effect.

On the other hand, the compressor provided by the invention is designed based on the dispenser support, and the beneficial effects of the dispenser support are referred to as beneficial effects of the dispenser support, and are not described in detail herein.

The foregoing description is only an overview of the present invention, and it is to be understood that the following detailed description of the preferred embodiments of the invention is provided in connection with the accompanying drawings, in order to provide a more clear understanding of the technical means of the present invention and to be able to be practiced in accordance with the present invention.

Drawings

Fig. 1 is a schematic structural diagram of a connection mode in a dispenser support according to an embodiment of the present invention;

FIG. 2 is a side view of a vibration damping unit in a dispenser stand provided in an embodiment of the present invention;

FIG. 3 is an enlarged view of a shock module in a dispenser stand provided in an embodiment of the present invention;

Fig. 4 is a graph of a function of a wedge curve in a dispenser support according to an embodiment of the invention.

FIG. 5 is a cross-sectional view of a dispenser support provided in an embodiment of the invention;

FIG. 6 is a top view of a dispenser support according to an embodiment of the invention;

Fig. 7 is a side view of a dispenser support according to an embodiment of the invention.

The reference numerals are expressed as:

1. A knockout; 2. a compressor; 3. a holder main body; 4. a vibration damping unit; 5. a clamp; 11. a first mating portion; 12. a second mating portion; 41. a vibration damping module; 411. a wedge-shaped portion.

Detailed Description

In order to further describe the technical means and effects adopted for achieving the preset aim of the invention, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the application of the invention with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

In the description of the present invention, it should be clearly understood that terms such as "vertical", "horizontal", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "horizontal", and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of describing the present invention, and do not mean that the apparatus or element referred to must have a specific orientation or position, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the invention will be understood by those of ordinary skill in the art in a specific context.

The compressor includes pump body subassembly and motor assembly, and pump body subassembly and motor assembly install in the inner chamber of casing, and the compressor still is equipped with the knockout usually, and the knockout is connected with pump body subassembly, provides the refrigerant for pump body subassembly, and pump body subassembly's bent axle is rotatory under motor assembly's rotor drive for pump body subassembly can accomplish the process of breathing in, compression, exhaust, and the refrigerant is discharged through the blast pipe of casing after the compression of pump body subassembly, then gets into refrigerating plant circulation. When the compressor works, the rotor pump body component can generate vibration, and the vibration can be transmitted to the liquid dispenser through the shell, which is an important reason for causing the large noise of the compressor.

Example 1

Referring to fig. 1 to 7, the present embodiment provides a dispenser stand for connecting a dispenser 1 and a compressor 2, the dispenser stand including a stand body 3 and a vibration damping unit 4, the bottom outer side of the stand body 3 being connected to a housing of the compressor 2, the vibration damping unit 4 being disposed inside the bottom of the stand body 3; the vibration damping unit 4 comprises at least one vibration damping module 41, the vibration damping module 41 comprises a wedge-shaped part 411, and the wedge-shaped part 411 adopts an acoustic black hole structure.

Specifically, the dispenser stand according to the embodiment of the invention includes a stand main body 3 and a vibration reduction unit 4, the vibration reduction unit 4 includes a vibration reduction module 41, a wedge 411 forming the vibration reduction module 41 adopts an acoustic black hole structure, when the vibration of the shell is transferred to the stand main body 3, the wedge 411 is close to one end of the dispenser 1, that is, the tail section of the wedge 411, so that the energy of the vibration can be absorbed, and the vibration response of the stand is inhibited, thereby achieving the effect of vibration reduction and noise reduction, and preferably, the vibration reduction module 41 of the vibration reduction unit 4 is uniformly distributed on the inner side of the bottom of the stand main body 3.

Further, when the dispenser support is manufactured, the support body 3 and the vibration reduction unit 4 can be integrally formed, the support body 3 and the vibration reduction unit 4 can also be manufactured separately, then the support body 3 and the vibration reduction unit 4 are connected through welding or other modes to form the dispenser support, the dispenser support is used for fixing the dispenser 1 and the compressor 2, as shown in fig. 1 and 7, the dispenser support is located in the middle of the shell and the dispenser, the support body 3 is in a U-shaped shape with two ends bent outwards, the outer side of the bottom of the U-shaped section is fixed on the shell of the compressor 2, the vibration reduction module 41 extends along the inner peripheral wall of the support body 3 facing the dispenser 1 to form a plurality of cantilever structures facing the dispenser 1, and the vibration reduction module 41 is arranged in a plurality of directions, so that the vibration reduction effect is improved.

In a particular embodiment, the damping module 41 includes a wedge 411; in particular, the damping module 41 may be just one independent wedge 411, i.e. the damping unit 4 corresponds to comprising at least one wedge 411.

In a particular embodiment, the damping module 41 comprises two mutually cooperating wedges 411; specifically, compared with the independent wedge-shaped parts 411, when the planes of the two wedge-shaped parts 411 opposite to the curved surfaces are mutually attached, and the two wedge-shaped parts 411 are symmetrically matched up and down in the curved surfaces, the vibration damping effect of the vibration damping module 41 is better, and more specifically, the vibration damping module 41 is integrally formed.

In a specific embodiment, the length of the wedge 411 protruding toward the dispenser 1 along the X-axis direction is L1, and the width of the wedge 411 along the Y-axis direction is L2, wherein the ratio of L1 to L2 is 0.6 or more and 1.8 or less; specifically, as shown in fig. 2 to 6, the vibration damping module 41 is divided into two wedge portions 411 along the X axis, the wedge portions 411 included in the vibration damping unit 4 are identical, the length of any one wedge portion 411 protruding toward the dispenser 1 along the X axis direction is L1, the width set along the Y axis direction is L2, and 0.6+.l1/l2+.0.8 is satisfied, of course, the sizes of LI and L2 are not limited, but when the ratio of LI to L2 is within this range, the vibration damping and noise reduction effects are better.

In a specific embodiment, taking an arbitrary point on the wedge edge of the wedge 411, where the height in the Z-axis direction is 0, the height h of the wedge edge of the wedge 411 in the Z-axis direction satisfies h (x) =a× ^m, where h (x) is the height of the wedge edge of the wedge 411 at the x point, a is a constant, a is greater than 0, and m is greater than or equal to 2; specifically, as shown in fig. 2 to 6, the wedge edge of the wedge portion 411 refers to the only curved surface edge of the wedge portion 411, the curved surface height gradually decreases along the direction protruding toward the dispenser 1, when the vibration damping module 41 includes two mutually matched wedge portions 411, in the vibration damping module 41, the two wedge portions 411 gradually converge along the tail section protruding toward the dispenser 1, and the height of the vibration damping module 41 gradually decreases to 0 along the X axis direction, wherein the height of the vibration damping module 41 is the sum of the heights of the two mutually matched wedge portions 411, when vibration generated by the rotor pump body assembly is transmitted to the dispenser support through the housing, vibration of the support body 3 can be transmitted to the vibration damping module 41, and vibration can be generated at one end of the vibration damping module 41 close to the dispenser 1, namely, the tail section of the vibration damping module 41, so that the vibration energy of the housing of the compressor 2 is consumed, thereby suppressing the vibration response of the dispenser 1, reducing noise generated by the housing vibration of the dispenser 1, and achieving the purpose of vibration damping of the compressor.

More specifically, when the height of the wedge 411 is gradually reduced to 0 along the direction protruding toward the dispenser 1, a broadband vibration damping effect can be achieved at this time, which is advantageous for damping the middle-high frequency vibration, thereby reducing the middle-high frequency noise generated by the dispenser 1 due to the housing vibration, that is, when the vibration is transmitted from the holder body 3 to the tail section of the wedge 411, since the height of the tail section of the wedge 411 is gradually reduced, the wave velocity of the vibration is reduced at this time, the wave aggregation is achieved, and at the same time, according to the energy conservation theorem, the amplitude value of the vibration is increased at this time, thereby enabling the rapid consumption of the energy of the vibration, especially for the middle-high frequency vibration, the vibration absorbing effect of the tail section of the wedge 411 with a gradually reduced height is better, so that it can effectively suppress the middle-high frequency vibration of the dispenser 1 due to the housing vibration, thereby reducing the middle-high frequency noise generated by the dispenser 1 due to the housing vibration.

Further, as shown in fig. 4, according to the acoustic black hole effect, with the thickness of the wedge 411 in the Z-axis direction being 0 as an origin, the height of the wedge 411 increases exponentially in the X-axis direction by a power exponent, and satisfies a power exponent curve h (X) =a× ^m, where a is a constant, a > 0, m is a power exponent and m is equal to or greater than 2, preferably, the value of a may be 2, it is understood that with any point on the wedge edge of the wedge 411 in the Z-axis direction where the thickness is 0 as an origin, X is the shortest distance between any point on the wedge edge of the wedge 411 to the Z-axis. That is, from the holder body 3 toward the dispenser 1, the height of the wedge 411 gradually decreases in power, and the closer to the position of the dispenser 1, the smaller the height is, and the power decreases. Since the height of the wedge 411 varies exponentially, the region of the wedge 411 that varies exponentially may be understood as an acoustic black hole region, and the acoustic black hole effect is to gradually reduce the propagation velocity of a wave in the acoustic black hole region by using the power variation of the geometric parameter or the material characteristic parameter of the thin wall structure, and the wave velocity may be reduced to zero under ideal conditions, so that no reflection phenomenon occurs. The acoustic black hole can be used for gathering the wave energy propagated in the structure at a specific position, so that the acoustic black hole has obvious advantages in the application of vibration reduction and noise reduction of the thin-wall structure, and the acoustic black hole has the characteristics of high efficiency in broadband wave gathering, simplicity and flexibility in implementation method and the like.

According to the acoustic black hole effect, it can be understood that the wedge 411 of the knockout support adopts an acoustic black hole structure, and the heights of the wedge 411 are distributed according to the law of gradually decreasing power exponent, so that the wedge 411 can reduce the propagation speed of waves in the structure, convert supersonic waves into subsonic waves, collect broadband waves in a region with thinned structure thickness on a certain spatial scale, play a role in inhibiting acoustic radiation in the structure, remarkably reduce the vibration response of the knockout to the shell, and obtain a good noise reduction effect.

In a specific embodiment, the length L1 of the wedge 411 protruding toward the dispenser 1 in the X-axis direction is smaller than the shortest distance of the dispenser 1 to the bottom inside of the holder main body 3; specifically, the end of the wedge 411 that is close to the dispenser 1 cannot directly contact the dispenser 1.

In a specific embodiment, the end of the wedge 411 on the side away from the bottom of the bracket body 3 is provided with a damping coating for vibration reduction; specifically, the smaller the height h of the tail section of the wedge 411 of the dispenser support, the better the acoustic black hole effect the wedge 411 can play, however, considering the restrictions of the process and the processing, the tail section of the wedge 411 will be cut off when the height is greater than 0 in actual manufacture, even if the cut thickness is small, a large reflection coefficient will be caused, the acoustic black hole effect will be seriously affected, a small amount of damping material will be adhered to the end of the side of the wedge 411 away from the bottom of the support body 3, the acoustic black hole effect will be effectively compensated, vibration in the structure will be effectively inhibited, the vibration reduction noise reduction effect will be enhanced, the adhering position of the damping material will be determined according to the structural size and the specific situation of the wedge 411, preferably, when the vibration reduction module 41 includes one wedge 411, the damping material will be disposed on the plane opposite to the curved surface on the tail section, and when the vibration reduction module 41 includes two mutually matched wedges 411, the damping material will be disposed on the two opposite curved surfaces on the tail section of the vibration reduction module 41.

In a specific embodiment, the dispenser support further comprises a clamp 5, the clamp 5 is arranged on the periphery of the dispenser 1, and the clamp 5 is connected with the support main body 3 so as to clamp the dispenser 1 in a space surrounded by the clamp 5 and the support main body 3; specifically, as shown in fig. 1, the dispenser support in this embodiment further includes a clip 5, where the clip 5 is embraced on the dispenser 1, and the dispenser is clamped at the opening of the U-shaped section of the support body 3, and the clip 5 is fixedly connected with the support body 3, so as to implement constraint and support on the dispenser 1.

In a specific embodiment, a first matching part 11 and a second matching part 12 are respectively arranged at two ends of the opening of the bracket main body 3, and the bracket main body 3 is connected with the clamp 5 through the first matching part 11 and the second matching part 12; specifically, the outward bending portion in the support main body 3 of U type both ends are provided with first cooperation portion 11 and the second cooperation portion 12 with clamp complex respectively, and wherein first cooperation portion 11 is connected with the one end block of clamp 5, and the second cooperation portion 12 passes through the fastener with the other end of clamp 5 to be fixed, preferably, in this embodiment, first cooperation portion 11 is square hole and the spacing joint of one end of clamp 5, and second cooperation portion 12 is circular hole, passes through mounting screw with the one end of clamp 5 to be fixed, further reduces the loose hidden danger of knockout support.

The knockout support that this embodiment provided, the bottom outside of support main part 3 is fixed on the casing of compressor 2, through clamp 5 and support main part 3 fixed connection, with knockout 1 fixed connection on the casing of compressor 2, reduce the not hard up hidden danger of knockout support, in the bottom inboard of support main part 3, set up the wedge 411 that has black hole acoustic structure, in order to realize better damping noise reduction effect, every two wedge 411 cooperation are constituteed damping module 41, damping module 41 is in the region of the high attenuation of structure with the wave gathering of broadband on certain spatial scale, play the effect of restraining the sound radiation in the structure, can show the vibrational response of reduction knockout to the casing, obtain good noise reduction effect.

Example 2

This embodiment provides a compressor, and the compressor includes the knockout support of embodiment 1, uses the knockout support in embodiment 1 on the compressor, can weaken the vibration and the noise of knockout body that cause because of the vibration of compressor when the compressor operates, and then reduces the operational noise of compressor, improves the travelling comfort of using.

In summary, it is easily understood by those skilled in the art that the above-mentioned advantageous features can be freely combined and overlapped without conflict.

The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way, but any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. The liquid dispenser support is characterized by being used for connecting a liquid dispenser (1) and a compressor (2), and comprises a support main body (3) and a vibration reduction unit (4), wherein the outer side of the bottom of the support main body (3) is connected to a shell of the compressor (2), the vibration reduction unit (4) is arranged on the inner side of the bottom of the support main body (3), and the vibration reduction unit (4) and the support main body (3) are integrally formed;

the vibration reduction unit (4) comprises at least one vibration reduction module (41), the vibration reduction module (41) comprises two mutually matched wedge-shaped parts (411), the wedge-shaped parts (411) adopt an acoustic black hole structure, the protruding length of the wedge-shaped parts (411) towards the liquid separator (1) along the X-axis direction is smaller than the shortest distance from the liquid separator (1) to the inner side of the bottom of the support main body (3), the two wedge-shaped parts (411) gradually converge along the tail section of the protruding direction towards the liquid separator (1), the tail section of the wedge-shaped parts (411) faces the liquid separator (1), the wedge-shaped parts (411) are provided with curved surfaces, the two curved surfaces are symmetrical up and down, and the height of the curved surfaces gradually decreases along the protruding direction towards the liquid separator (1).

2. The dispenser stand according to any one of claim 1, wherein the wedge part (411) protrudes in the X-axis direction toward the dispenser (1) by a length L1, and the wedge part (411) is provided in the Y-axis direction by a width L2, wherein a ratio of L1 to L2 is 0.6 or more and 1.8 or less.

3. The dispenser stand according to claim 2, characterized in that an arbitrary point on the wedge edge of the wedge part (411) having a height of 0 in the Z-axis direction is taken as an origin, the height h of the wedge edge of the wedge part (411) in the Z-axis direction satisfies h (x) =a×x ^m, where h (x) is the height of the wedge edge of the wedge part (411) at the x point, a is a constant, and a is greater than 0, m is greater than or equal to 2.

4. The dispenser stand according to claim 1, characterized in that the end of the wedge (411) on the side remote from the bottom of the stand body (3) is provided with a damping coating for vibration reduction.

5. The dispenser holder according to claim 1, further comprising a clip (5), the clip (5) being disposed on the outer periphery of the dispenser (1), the clip (5) being connected to the holder body (3) so as to clamp the dispenser (1) in a space defined by the clip (5) and the holder body (3).

6. The dispenser stand according to claim 5, characterized in that the open ends of the stand body (3) are provided with a first mating portion (11) and a second mating portion (12), respectively, and the stand body (3) is connected with the clamp (5) through the first mating portion (11) and the second mating portion (12).

7. A compressor comprising the dispenser support of any one of claims 1-6.