CN212508842U

CN212508842U - Amortization structure and integrated frame and compressor

Info

Publication number: CN212508842U
Application number: CN202021152186.XU
Authority: CN
Inventors: 王汉林; 操冲; 黄之敏
Original assignee: Shanghai Highly Electrical Appliances Co Ltd
Current assignee: Shanghai Highly Electrical Appliances Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-02-09
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses an amortization structure and integration frame and compressor, including an exhaust baffle who has the exhaust hole, exhaust baffle centers on the last bearing of compressor and/or the journal setting of lower bearing, just exhaust hole on the exhaust baffle and the pump body exhaust hole dislocation set of compressor. When gas in the compressor pump body enters the shell from the pump body vent hole, the vent hole in the exhaust baffle plate and the pump body vent hole of the compressor are arranged in a staggered mode, so that the gas cannot directly enter the vent hole of the exhaust baffle plate from the pump body vent hole to be discharged, but is firstly conveyed to a certain distance and then discharged from the vent hole of the exhaust baffle plate. The medium frequency noise of the compressor in the diameter dimension cavity can be effectively reduced by equivalently buffering exhausted gas. In addition, compare with prior art's structure, only increased an exhaust baffle in the compressor among the technical scheme of this application, simple structure, it is with low costs, very little to the original structure influence of compressor.

Description

Amortization structure and integrated frame and compressor

Technical Field

The utility model belongs to the technical field of the compressor and specifically relates to a amortization structure and integration frame and compressor are related to.

Background

The existing rotor compressor generally adopts a mode of exhausting air from a shell cover. The refrigerant is compressed in the cylinder, discharged through the exhaust hole, then passes through the motor, and then is discharged from the exhaust pipe of the frame.

With the increasing concern of customers about the vibration noise of the compressor and the research on the noise vibration of the micro-rotor compressor, the inventor finds that the resonant frequency of the cavity in the diameter dimension of the compressor is the main factor causing the intermediate frequency noise, and no technical scheme in the prior art discloses how to reduce the intermediate frequency noise of the compressor.

Therefore, it is necessary to provide a technical solution for reducing the frequency noise in the compressor.

It is noted that the information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an amortization structure and integration frame and compressor for there is the problem of intermediate frequency noise in the compressor among the solution prior art.

In order to solve the technical problem, the utility model provides an amortization structure sets up in the casing of compressor, amortization structure includes exhaust baffle, exhaust baffle centers on the last bearing of compressor and/or the axle journal setting of lower bearing, and fix on the shells inner wall of compressor exhaust baffle is last to have seted up the exhaust hole, the exhaust hole with the pump body exhaust hole dislocation set of compressor.

Optionally, the outer shape of the exhaust baffle matches with the inner wall of the shell of the compressor, and a through hole is formed in the center of the exhaust baffle and used for penetrating through a journal of an upper bearing or a lower bearing of the compressor.

Optionally, a groove is formed in the inner wall of the shell of the compressor, and the exhaust baffle is fixed to the shell through the groove.

Optionally, a bent portion is disposed at an outer edge of the exhaust baffle, and the bent portion is connected to an inner wall of the compressor casing.

Optionally, the bent portion includes a continuous bent structure formed by bending along all outer edges of the exhaust baffle.

Optionally, the bent portion includes a discrete bent structure bent along a part of an outer edge of the exhaust baffle.

Optionally, the bent portion is connected to an inner wall of a shell of the compressor in an interference fit manner.

Optionally, the number of the exhaust holes is plural.

Optionally, a plurality of said exhaust holes are symmetrically distributed.

Based on the same invention concept, the utility model also provides an integrated rack, including the casing and the upper bearing that form integratedly to and in the above-mentioned feature description arbitrary the amortization structure, the casing encloses into an accommodation region that is used for holding the motor with the upper bearing, seted up on the upper bearing the pump body exhaust hole, the motor constitutes an exhaust cavity with the upper bearing in the accommodation region;

the exhaust baffle of the silencing structure is arranged in the exhaust cavity and divides the exhaust cavity into a first exhaust cavity close to the pump body exhaust hole and a second exhaust cavity far away from the pump body exhaust hole, and the first exhaust cavity is communicated with the second exhaust cavity through the exhaust hole in the exhaust baffle.

Based on the same inventive concept, the utility model also provides a compressor, its characterized in that, including in the above-mentioned feature description arbitrary the amortization structure, or integrated frame.

Optionally, the exhaust vent of the sound attenuating structure opens into a modal low response region of the exhaust baffle.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model provides an amortization structure, including an exhaust baffle who has the exhaust hole, exhaust baffle centers on the last bearing of compressor and/or the journal setting of lower bearing, just exhaust hole on the exhaust baffle and the pump body exhaust hole dislocation set of compressor. When gas in the compressor pump body enters the shell from the pump body vent hole, the vent hole in the exhaust baffle plate and the pump body vent hole of the compressor are arranged in a staggered mode, so that the gas cannot directly enter the vent hole of the exhaust baffle plate from the pump body vent hole to be discharged, but is firstly conveyed to a certain distance and then discharged from the vent hole of the exhaust baffle plate. The medium frequency noise of the compressor in the diameter dimension cavity can be effectively reduced by equivalently buffering exhausted gas. In addition, compare with prior art's structure, only increased an exhaust baffle in the compressor among the technical scheme of this application, simple structure, it is with low costs, very little to the original structure influence of compressor.

2. The utility model provides an integration frame, with the amortization structure belongs to same invention concept, consequently the integration frame has all beneficial effects of amortization structure. And the exhaust baffle divides the exhaust cavity into a first exhaust cavity and a second exhaust cavity. Utilize an integration frame that this application provided, the gaseous entering in the compressor pump body can directly follow in the first exhaust cavity back exhaust baffle is last exhaust hole discharges to in the second exhaust cavity, can follow again after conducting a section distance in the first exhaust cavity exhaust baffle is last exhaust hole discharges, first exhaust cavity is equivalent to a buffer space, can further reduce the compressor at the intermediate frequency noise of diameter dimension cavity.

3. The exhaust hole is arranged in a modal low-response area on the exhaust baffle, and the modal low-response area is obtained through a modal test of the compressor, so that 600-1250Hz frequency spectrum noise of the compressor in a diameter dimension cavity can be effectively reduced.

The utility model discloses the compressor that still provides belongs to same inventive concept with the amortization structure, consequently the compressor has all beneficial effects of amortization structure.

Drawings

Fig. 1 is a schematic structural diagram of an integrated rack according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a noise reduction structure according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of FIG. 2;

10-shell, 100-pump body exhaust hole, 101-journal, 102-tool withdrawal groove, 20-motor, 201-rotor component, 30-exhaust cavity, 301-first exhaust cavity, 302-second exhaust cavity, 40-exhaust baffle, 400-exhaust hole, 401-through hole, 402-bending part, 50-crankshaft and 60-upper bearing.

Detailed Description

The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. Advantages and features of the present invention will become apparent from the following description and claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1 to 3, an embodiment of the present invention provides a noise reduction structure disposed in a casing 10 of a compressor, where the noise reduction structure includes an exhaust baffle 40, the exhaust baffle 40 is disposed around a journal 101 of an upper bearing 60 and/or a lower bearing of the compressor and fixed on an inner wall of the casing 10 of the compressor, an exhaust hole 400 is disposed on the exhaust baffle 40, and the exhaust hole 400 and a pump body exhaust hole 100 of the compressor are disposed in a staggered manner.

The difference lies in with prior art, the utility model provides a noise reduction structure, including an exhaust baffle 40 that has exhaust hole 400, exhaust baffle 40 sets up around the axle journal 101 of the upper bearing 60 and/or the lower bearing of compressor, just exhaust hole 400 on the exhaust baffle 40 sets up with the pump body exhaust hole 100 dislocation of compressor. When gas in the compressor pump body enters the shell 10 from the pump body exhaust hole 100, because the exhaust hole 400 on the exhaust baffle 40 and the pump body exhaust hole 100 of the compressor are arranged in a staggered manner, the gas cannot directly enter the exhaust hole 400 of the exhaust baffle 40 from the pump body exhaust hole 100 to be exhausted, but is firstly transmitted to a certain distance and then exhausted from the exhaust hole 400 of the exhaust baffle 40. The medium frequency noise of the compressor in the diameter dimension cavity can be effectively reduced by equivalently buffering exhausted gas. In addition, compare with prior art's structure, only increased a discharge baffle 40 in the compressor among the technical scheme of this application, simple structure, it is with low costs, very little to the original structure influence of compressor.

Further, the outer shape of the exhaust baffle 40 matches with the inner wall of the shell 10 of the compressor, and the center of the exhaust baffle 40 is provided with a through hole 401 for passing through the journal 101 of the upper bearing 60 or the lower bearing of the compressor. Referring to fig. 2, in the embodiment of the present invention, the shape of the exhaust baffle 40 is circular, it is understood that, in other embodiments of the present invention, the exhaust baffle 40 may have other shapes, and the shape of the exhaust baffle 40 may be adjusted according to the structure of the compressor housing 10 at present and the structure of the compressor housing 10 expected in the future. For example, if there is no central through hole 401, or the exhaust baffle 40 is square, there are many other cases, which are not described herein, and they can be selected according to actual needs.

Optionally, a groove is formed in an inner wall of the casing 10 of the compressor, and the exhaust baffle 40 is fixed to the casing 10 through the groove.

Referring to fig. 1, the exhaust baffle 40 is disposed on and connected to an inner wall of the shell 10 of the compressor, and the exhaust baffle 40 may be connected to the inner wall of the shell 10 in various ways, and may be directly connected to the inner wall of the shell 10 in an interference manner, or may be disposed in a groove formed in the inner wall to be fixed to the shell 10, or may be connected in other ways, which is not limited herein. The inventor finds that, in the specific implementation, the inner wall of the casing 10 has a relief groove 102, the exhaust baffle 40 can be connected with the relief groove 102 in an interference fit manner, and the structure of the relief groove 102 has minimal influence on the original structure of the compressor, and is more convenient to implement, so that the invention can be implemented as a preferred embodiment.

Further, referring to fig. 2 and fig. 3, a bent portion 402 is disposed at an outer edge of the exhaust baffle 40, and the bent portion 402 is connected to an inner wall of the shell 10 of the compressor. In the embodiment of the present invention, the number of the bending portions 402 is 8, and it can be understood that, in other embodiments of the present invention, the number of the bending portions 402 can also be other numbers, and is not limited herein, and can be specifically selected according to actual needs.

It should be noted that, in the embodiment of the present invention, the bending portion 402 includes a discrete bending structure formed by bending along a part of the outer edge of the exhaust baffle 40, please refer to fig. 2. In other embodiments of the present invention, the bending portion 402 may be other types of structures, for example, the bending portion 402 may further include a continuous bending structure formed by bending along all outer edges of the exhaust baffle 40. The method is not limited herein, and may be specifically selected according to actual needs.

The bent portion 402 is preferably connected to the inner wall of the compressor housing 10 by interference fit.

In one embodiment, the plurality of exhaust holes 400 of the exhaust baffle 40 may or may not have the same shape as each other. For example, the shape of the plurality of exhaust holes 400 of the exhaust baffle 40 may be any suitable form such as a circular hole, an elliptical hole, a polygonal hole, or a combination thereof. In a specific embodiment, the plurality of exhaust holes 400 of the exhaust baffle 40 are arranged at equal intervals. In another embodiment, the exhaust holes 400 of the exhaust baffle 40 may be arranged at unequal intervals. Further, in one embodiment, the plurality of exhaust holes 400 in the exhaust baffle 40 are the same size. In another embodiment, the plurality of exhaust holes 400 of the exhaust baffle 40 are different in size. For example, in one embodiment, the sizes of the plurality of exhaust holes 400 of the exhaust baffle 40 are sequentially increased or sequentially decreased in the circumferential direction of the exhaust baffle 40. Thus, by controlling the size and/or position of the exhaust holes 400 on the exhaust baffle 40, noise at the corresponding frequency can be more flexibly removed.

Referring to fig. 2 and 3, the plurality of exhaust holes 400 are preferably distributed symmetrically on the exhaust baffle 40.

Based on the same inventive concept, another embodiment of the present invention further provides an integrated rack, which includes an integrally formed housing 10 and an upper bearing 60, and the silencing structure described in any of the above feature descriptions, wherein the housing 10 and the upper bearing 60 enclose a receiving area for receiving the motor 20, the upper bearing 60 is provided with the pump body exhaust hole 100, and the motor 20 and the upper bearing 60 form an exhaust cavity 30 in the receiving area. The exhaust baffle 40 of the silencing structure is arranged in the exhaust cavity 30 and divides the exhaust cavity 30 into a first exhaust cavity 301 close to the pump body exhaust hole 100 and a second exhaust cavity 302 far away from the pump body exhaust hole 100, and the first exhaust cavity 301 and the second exhaust cavity 302 are communicated through the exhaust hole 400 on the exhaust baffle 40. The motor 20 is connected to the crankshaft 50 of the compressor by a rotor assembly 201.

The integrated machine frame and the silencing structure belong to the same invention concept, so the integrated machine frame has all the beneficial effects of the silencing structure. The exhaust baffle 40 divides the exhaust cavity 30 into a first exhaust cavity 301 and a second exhaust cavity 302. Utilize an integration frame that this application provided, the gaseous entering in the compressor pump body can directly follow after in the first exhaust cavity 301 exhaust baffle 40 on exhaust hole 400 discharges to in the second exhaust cavity 302, can conduct in the first exhaust cavity 301 and follow after a certain distance exhaust baffle 40 on exhaust hole 400 discharges, first exhaust cavity 301 is equivalent to a buffer space, can further reduce the compressor at the intermediate frequency noise of diameter dimension cavity.

Based on the same inventive concept, another embodiment of the present invention further provides a compressor, which is characterized by comprising any one of the above-mentioned silencing structures or the above-mentioned integrated frame.

Preferably, the exhaust vent 400 of the sound attenuating structure opens in a modal low response region of the exhaust baffle 40. The modal low response region is obtained by a modal test of the compressor. The frequency spectrum noise of the compressor in the diameter dimension cavity of 600-1250Hz can be effectively reduced.

To sum up, the utility model discloses following beneficial effect has:

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example" or "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. The utility model provides a silencing structure, sets up in the casing of compressor, its characterized in that, silencing structure includes exhaust baffle, exhaust baffle centers on the axle journal setting of the upper bearing of compressor and/or lower bearing, and fix on the shells inner wall of compressor exhaust baffle is last to have seted up the exhaust hole, the exhaust hole with the pump body exhaust hole dislocation set of compressor.

2. The sound-deadening structure according to claim 1, wherein the exhaust baffle has a shape matching an inner wall of a shell of the compressor, and a through hole is formed at a center of the exhaust baffle for passing through a journal of an upper bearing or a lower bearing of the compressor.

3. The sound attenuating structure as claimed in claim 2, wherein the compressor has a groove formed in an inner wall of a shell, and the discharge baffle is fixed to the shell through the groove.

4. The sound-deadening structure according to claim 2 or 3, wherein a bent portion is provided at an outer edge of the exhaust baffle, and the bent portion is connected to an inner wall of a shell of the compressor.

5. The sound-deadening structure according to claim 4, wherein the bent portion comprises a continuous bent structure formed by bending along all of the outer edges of the exhaust baffle.

6. The sound attenuating structure as claimed in claim 4, wherein the bent portion includes a discrete bent structure formed by bending along a part of the outer edge of the exhaust baffle.

7. The sound attenuating structure as claimed in claim 4, wherein the bent portion is attached to an inner wall of a shell of the compressor in an interference fit.

8. The sound-deadening structure according to claim 1, wherein the number of the gas discharge holes is plural.

9. The sound attenuating structure of claim 8, wherein a plurality of said vent holes are symmetrically distributed.

10. An integrated rack, which is characterized by comprising a shell and an upper bearing which are integrally formed, and a silencing structure as claimed in any one of claims 1 to 3 and 5 to 9, wherein the shell and the upper bearing define a containing area for containing a motor, the upper bearing is provided with a pump body exhaust hole, and the motor and the upper bearing form an exhaust cavity in the containing area;

11. A compressor, comprising a sound-deadening structure according to any one of claims 1 to 3 and 5 to 9, or an integrated frame according to claim 10.

12. The compressor of claim 11, wherein the discharge orifice of the sound attenuating structure opens into a modal low response region of the discharge baffle.