Compressor and household appliance having the same

Abstract

The present invention provides a compressor and a household appliance having the same, wherein the compressor comprises: a housing, a pump assembly and a motor assembly, the pump assembly and the motor assembly are both installed in the housing, and the housing is provided with an air inlet and an air outlet; the suction port of the pump assembly is connected to the air inlet of the housing, and the compressed gas of the pump assembly passes through the motor assembly for multiple times and is discharged from the air outlet. The technical solution of the present invention effectively solves the problem of high noise in the compressor of the prior art when in use.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a compressor and a household appliance having the same. Background Art

[0002] like Figure 1 As shown, when the high-pressure gas refrigerant in the compressor 1 is discharged, it passes through the motor and then is discharged from the compressor 1. The high-pressure gas refrigerant in the compressor 1 will produce strong pressure pulsation, which will cause the compressor 1 to vibrate, resulting in a loud noise in the compressor 1, affecting the user experience. Summary of the invention

[0003] The main purpose of the present invention is to provide a compressor and a household appliance having the same, so as to solve the problem that the compressor in the prior art makes a lot of noise when in use.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a compressor is provided, comprising: a casing, a pump body assembly and a motor assembly, wherein the pump body assembly and the motor assembly are both installed in the casing, and an air inlet and an air outlet are provided on the casing; the suction port of the pump body assembly is connected to the air inlet of the casing, and the compressed gas of the pump body assembly passes through the motor assembly for multiple times and is discharged from the air outlet.

[0005] Furthermore, the pump body assembly and the motor assembly separate the shell into a first silencer cavity and a second silencer cavity, the end wall of the motor assembly and the shell is the first silencer cavity, the second silencer cavity is between the motor assembly and the pump body assembly, and the air outlet is arranged on the side wall of the second silencer cavity.

[0006] Furthermore, the compressor also includes a connecting pipe, a first end of the connecting pipe is seal-connected to the outlet of the pump body assembly, and a second end of the connecting pipe is connected to the first muffler cavity.

[0007] Furthermore, the motor assembly includes a stator and a rotor, a gap is provided between the stator and the housing, and the connecting pipe is arranged in the gap.

[0008] Furthermore, a flow hole penetrating the first silencer cavity and the second silencer cavity is provided on the rotor.

[0009] Furthermore, the compressor also includes a silencer structure, which is arranged in the first silencer cavity.

[0010] Furthermore, the silencer structure includes a silencer plate, which is arranged in the first silencer cavity. The silencer plate divides the first silencer cavity into a first sub-silencer cavity and a second sub-silencer cavity. The first sub-silencer cavity is formed between the silencer plate and the end plate of the shell, and the second sub-silencer cavity is formed between the silencer plate and the motor assembly. The second end of the connecting pipe is located in the first sub-silencer cavity.

[0011] Furthermore, one or more through holes are arranged on the sound-absorbing plate.

[0012] Furthermore, the sound-absorbing plate is a flat plate or a curved plate.

[0013] Furthermore, the volume of the first silencing cavity is V1, the volume of the second silencing cavity is V2, and V1 / V2 is greater than 1.5.

[0014] Furthermore, the volume of the first silencer cavity is V1, the compressor displacement volume is V, and V1 / V is greater than 8.

[0015] According to another aspect of the present invention, a household appliance is provided, comprising a compressor, wherein the compressor is the above-mentioned compressor.

[0016] By applying the technical solution of the present invention, the gas compressed by the pump assembly passes through the motor assembly multiple times. Due to the increase in the path, the energy of the high-pressure gas refrigerant inside the compressor is reduced, the vibration is reduced, and the noise is reduced. The technical solution of the present invention effectively solves the problem of high noise when the compressor in the prior art is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of a compressor in the prior art is shown;

[0019] Figure 2 A schematic structural diagram of a compressor according to a first embodiment of the present invention is shown;

[0020] Figure 3 A schematic structural diagram of a compressor according to a second embodiment of the present invention is shown;

[0021] Figure 4 A schematic structural diagram of a compressor according to a third embodiment of the present invention is shown;

[0022] Figure 5 A schematic structural diagram of a compressor according to a fourth embodiment of the present invention is shown;

[0023] Figure 6 A schematic diagram showing the change of noise due to the change of the volume ratio of the first muffler cavity and the second muffler cavity of the compressor according to the present invention;

[0024] Figure 7 A schematic diagram showing the change in noise due to the change in the ratio of the volume of the first silencer cavity of the compressor to the compressor displacement volume according to the present invention is shown.

[0025] The above drawings include the following reference numerals:

[0026] 10. Shell; 20. Pump body assembly; 30. Motor assembly; 31. Stator; 32. Rotor; 40. Connecting pipe; 50. Silencer plate; 100. First silencing cavity; 101. First sub-silencing cavity; 102. Second sub-silencing cavity; 200. Second silencing cavity. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0029] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0030] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for clarity, the thickness of the layers and regions is enlarged, and the same reference numerals are used to represent the same devices, so their description will be omitted.

[0031] like Figure 2As shown, the compressor of the first embodiment includes: a housing 10, a pump assembly 20 and a motor assembly 30. The pump assembly 20 and the motor assembly 30 are both installed in the housing 10, and the housing 10 is provided with an air inlet and an air outlet. The suction port of the pump assembly 20 is connected to the air inlet of the housing 10, and the compressed gas of the pump assembly 20 passes through the motor assembly 30 for multiple times and is discharged from the air outlet.

[0032] By applying the technical solution of this embodiment, the gas compressed by the pump assembly 20 passes through the motor assembly 30 multiple times. Due to the increase in the path, the energy of the high-pressure gas refrigerant inside the compressor is reduced, the vibration is reduced, and the noise is reduced. The technical solution of this embodiment effectively solves the problem of high noise in the compressor of the prior art when in use.

[0033] It should be noted that the passage from the side of the motor assembly 30 close to the pump assembly 20 to the side of the motor assembly 30 far from the pump assembly 20 is considered as one passage through the motor assembly 30, including the use of a pipeline or the internal gap of the motor assembly 30.

[0034] like Figure 2 As shown, in the technical solution of the first embodiment, the pump assembly 20 and the motor assembly 30 separate the housing 10 into a first silencing cavity 100 and a second silencing cavity 200, the end wall of the motor assembly 30 and the housing 10 is the first silencing cavity 100, the second silencing cavity 200 is between the motor assembly 30 and the pump assembly 20, and the air outlet is arranged on the side wall of the second silencing cavity 200. The arrangement of the first silencing cavity 100 and the second silencing cavity 200 further eliminates the noise generated by the compressor. Specifically, the space in the first silencing cavity 100 is relatively large, and the compressed gas expands in the first silencing cavity 100 to effectively eliminate the noise.

[0035] like Figure 2 As shown, in the technical solution of the first embodiment, the compressor further includes a connecting pipe 40, a first end of the connecting pipe 40 is sealed and connected to the outlet of the pump body assembly 20, and a second end of the connecting pipe 40 is connected to the first silencing cavity 100. The arrangement of the connecting pipe 40 effectively eliminates the noise generated by the compressed gas coming out of the pump body assembly 20 in the second silencing cavity 200. Specifically, since the space of the first silencing cavity 100 is relatively large, the noise generated by the gas compressed by the pump body assembly 20 after entering the first silencing cavity 100 through the connecting pipe 40 is relatively small.

[0036] like Figure 2 As shown, in the technical solution of the first embodiment, the motor assembly 30 includes a stator 31 and a rotor 32, and there is a gap between the stator 31 and the housing 10, and the connecting pipe 40 is arranged in the gap. The above structure is relatively compact, and there is no need to set an additional space for the connecting pipe 40 or connect the connecting pipe 40 to the outside of the housing 10.

[0037] like Figure 2 As shown, in the technical solution of the first embodiment, a flow hole is provided on the rotor 32, which passes through the first muffler cavity 100 and the second muffler cavity 200. The provision of the flow hole facilitates the compressed gas in the first muffler cavity 100 to enter the second muffler cavity 200. The provision of the flow hole on the rotor 32 allows the compressed gas to exchange heat with the motor assembly 30 on the one hand, and on the other hand, makes the structure of the compressor more compact.

[0038] like Figure 2 As shown, in the technical solution of this embodiment, the ratio of the volume of the first silencing cavity 100 to the volume of the second silencing cavity 200 is greater than 1.5. The above structure ensures that the volume of the first silencing cavity 100 is greater than the volume of the second silencing cavity 200, so that when the compressed gas enters the first silencing cavity 100, the volume of the compressed gas suddenly expands, which can greatly reduce the noise generated by the compressed gas under higher pressure. Figure 6 and Figure 7 As shown, practice has proved that, under the condition of ensuring a certain volume of the compressor, the volume of the first silencer cavity 100 is V1, the volume of the second silencer cavity 200 is V2, and the silencer effect is more obvious when V1 / V2 is greater than 1.5. This embodiment expands the volume of the first silencer cavity 100, and the silencer effect is better.

[0039] It should be noted that the motor of the compressor of the present application is moved toward the pump assembly, which can reduce the height of the motor, reduce the height of the compressor or the rotating parts, reduce the vibration of the compressor, and reduce the noise. In addition, the height of the motor shaft is reduced, the arm length of the cantilever beam is shortened, and the shaft system deflection is reduced, which can also play a role in reducing the noise of the compressor.

[0040] like Figure 2 , Figure 6 and Figure 7 As shown, in the technical solution of the first embodiment, the volume of the first muffler cavity 100 is V1, the displacement volume of the compressor is V, and V1 / V is greater than 8. The above structure makes the volume of the first muffler cavity 100 larger, which can reduce the noise of the compressor.

[0041] like Figure 3As shown, the difference between the second embodiment and the first embodiment is that the compressor further includes a silencer structure, which is arranged in the first silencer cavity 100. The arrangement of the silencer structure further reduces the noise generated by the compressor. Specifically, the silencer structure includes a silencer plate 50, which is arranged in the first silencer cavity 100. The silencer plate 50 divides the first silencer cavity 100 into a first sub-silencer cavity 101 and a second sub-silencer cavity 102. The first sub-silencer cavity 101 is formed between the silencer plate 50 and the end plate of the housing 10, and the second sub-silencer cavity 102 is formed between the silencer plate 50 and the motor assembly 30. The second end of the connecting pipe 40 is located in the first sub-silencer cavity 101. The above structure has a low processing cost and is easy to arrange. The silencer plate 50 can be welded to the inner wall of the housing 10. In the technical solution of this embodiment, the silencer plate 50 is a curved plate, and the arrangement of the curved plate makes the time when the compressed gas reaches the silencer plate 50 different, which is more conducive to eliminating noise. A relatively large through hole is provided on the muffler plate 50. The end plate of the housing 10 refers to Figure 3 The upper plate in the middle.

[0042] like Figure 4 As shown, the difference between the third embodiment and the second embodiment is that a plurality of through holes are provided on the muffler plate 50. The provision of a plurality of through holes is conducive to the compressed gas, so that the compressed gas passes through the muffler plate 50 more evenly. It should be noted that the plurality of through holes do not need to be evenly provided, and the compressed gas can pass through the muffler plate 50 more evenly according to the passing condition of the compressed gas. In this way, the effect of reducing noise is more obvious.

[0043] like Figure 5 As shown, the difference between the fourth embodiment and the third embodiment is that the muffler plate 50 is a flat plate. The through hole on the flat plate can be one or more. When there are multiple through holes, the sizes of the through holes can be the same or different, and the through holes can be evenly arranged on the flat plate or unevenly arranged on the flat plate.

[0044] The present application also provides a household appliance, which includes a compressor. The compressor is the above-mentioned compressor. It should be noted that the household appliance can be an air conditioner, a refrigerator, etc.

[0045] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compressor, characterized in that: include: A housing (10), a pump assembly (20) and a motor assembly (30), wherein the pump assembly (20) and the motor assembly (30) are both installed in the housing (10), and an air inlet and an air outlet are provided on the housing (10); The suction port of the pump assembly (20) is connected to the air inlet of the housing (10), and the compressed gas of the pump assembly (20) passes through the motor assembly (30) multiple times and is discharged from the air outlet; The pump body assembly (20) and the motor assembly (30) separate the housing (10) into a first silencing cavity (100) and a second silencing cavity (200); the motor assembly (30) and the end wall of the housing (10) form the first silencing cavity (100); the second silencing cavity (200) is between the motor assembly (30) and the pump body assembly (20); and the air outlet is arranged on a side wall of the second silencing cavity (200); The volume of the first silencing cavity (100) is V1, the volume of the second silencing cavity (200) is V2, V1 / V2 is greater than 1.

5.

2. The compressor according to claim 1, characterized in that The compressor further comprises a connecting pipe (40), a first end of the connecting pipe (40) being sealingly connected to the outlet of the pump body assembly (20), and a second end of the connecting pipe (40) being connected to the first muffler cavity (100).

3. The compressor according to claim 2, characterized in that The motor assembly (30) comprises a stator (31) and a rotor (32); a gap is provided between the stator (31) and the housing (10); and the connecting pipe (40) is arranged in the gap.

4. The compressor according to claim 3, characterized in that The rotor (32) is provided with a flow hole penetrating the first silencing cavity (100) and the second silencing cavity (200).

5. The compressor according to any one of claims 2 to 4, characterized in that The compressor further comprises a silencer structure, wherein the silencer structure is arranged in the first silencer cavity (100).

6. The compressor according to claim 5, characterized in that The silencer structure comprises a silencer plate (50), wherein the silencer plate (50) is arranged in the first silencer cavity (100), and the silencer plate (50) divides the first silencer cavity (100) into a first sub-silencer cavity (101) and a second sub-silencer cavity (102); the first sub-silencer cavity (101) is formed between the silencer plate (50) and an end plate of the housing (10); the second sub-silencer cavity (102) is formed between the silencer plate (50) and the motor assembly (30); and the second end of the connecting pipe (40) is located in the first sub-silencer cavity (101).

7. The compressor according to claim 6, characterized in that The muffler plate (50) is provided with one or more through holes.

8. The compressor according to claim 6, characterized in that The sound-absorbing plate (50) is a flat plate or a curved plate.

9. The compressor according to claim 1, characterized in that The volume of the first muffler cavity (100) is V1, the displacement volume of the compressor is V, and V1 / V is greater than 8.

10. A household appliance, comprising a compressor, characterized in that: The compressor is the compressor according to any one of claims 1 to 9.

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