Miniaturized compressor noise reduction housing and compressor
By creating a stepped structure with recessed parts on the compressor housing, the problem of reducing mid- and high-frequency noise in miniaturized compressor housings without increasing thickness is solved, achieving the effects of enhanced housing modes and reduced space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO WANBAO COMPRESSOR
- Filing Date
- 2025-08-19
- Publication Date
- 2026-08-04
AI Technical Summary
Existing miniaturized compressor housings cannot effectively reduce mid- and high-frequency noise without increasing thickness. At the same time, the tall housing structure results in the compressor occupying a large space, which affects the user experience.
Recesses are formed in designated areas of the upper and lower housings of the compressor to create a stepped structure that enhances the housing modality. Specifically, this includes a fan-shaped annular recess at the top of the upper housing and a groove structure along the edge of the lower housing, which enhances the housing modality and reduces noise.
Without increasing materials or thickness, the shell mode is enhanced, mid- and high-frequency noise is reduced, the compressor footprint is reduced, and the user experience is improved.
Smart Images
Figure CN224592308U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of refrigeration compressor technology, and relates to a miniaturized compressor noise reduction housing and compressor. Background Technology
[0002] During operation, the mechanical movement of the compressor's internal components generates vibrations. These vibrations are transmitted to the casing, causing it to vibrate and radiate noise. Therefore, reducing casing vibration reduces noise radiation. To reduce compressor noise radiation, one could adjust the compressor's casing structure to change its natural frequency, or change the compressor's operating frequency. However, the latter may be impractical, as the compressor's operating frequency is typically determined by application requirements.
[0003] Currently, miniaturized compressors face increasingly stringent requirements for cost and performance, as well as noise reduction. To control compressor costs and optimize performance, weight reduction designs are necessary for compressor components. However, while reducing component weight results in a thinner casing, a thinner casing can easily lead to increased compressor noise.
[0004] Existing miniaturized compressors have low housing modalities located at the top of the upper casing and the bottom of the lower casing, making them prone to generating mid- and high-frequency noise. The conventional way to reduce housing modalities is to increase the casing thickness, but this increases the amount of material used in the compressor, raising costs and reducing the product's market competitiveness. Furthermore, their relatively high casing height means the compressor occupies a large space in the refrigerator or freezer, resulting in smaller refrigerator and freezer compartment volumes and a reduced user experience.
[0005] Therefore, the structure of the miniaturized compressor housing in the existing technology needs further improvement. Utility Model Content
[0006] The purpose of this invention is to propose a miniaturized compressor noise reduction housing and compressor, which enhances the housing mode and reduces the medium and high frequency noise of the compressor without increasing the housing thickness.
[0007] To achieve the above objectives, this utility model adopts the following technical solution: A miniaturized compressor noise reduction housing includes an upper housing and a lower housing, which are assembled as one unit. The enclosed space enclosed by the upper and lower housings is used to house the compressor core. The top area of the upper housing is recessed from the outside to the inside to form at least one first recess, and the first recess has a stepped structure relative to other areas of the top of the upper housing. The bottom area of the lower housing is recessed from the outside to the inside to form at least one second recess, which has a stepped structure relative to other areas of the bottom of the lower housing.
[0008] Preferably, the designated area of the first recessed portion is recessed from the outside to the inside to form at least one third recessed portion, and the third recessed portion has a stepped structure relative to the first recessed portion.
[0009] Preferably, the third recess is located at the front end of the first recess, and the outline of the third recess has a groove structure.
[0010] Preferably, the third recess is provided as two.
[0011] Preferably, the first recess is located at the front end of the top of the upper housing, and the outline of the first recess is fan-shaped.
[0012] Preferably, the first recess is arranged at an angle relative to the horizontal plane.
[0013] Preferably, the angle of inclination of the first recessed portion relative to the horizontal plane is α, where 25°≤α≤35°.
[0014] Preferably, the second recess is located at the edge of the bottom of the lower housing, and the outline of the second recess has a groove structure.
[0015] Preferably, there are four second recesses.
[0016] A compressor having the aforementioned miniaturized compressor noise-reducing housing.
[0017] Compared with the prior art, this utility model has the following advantages: As described above, this utility model relates to a miniaturized compressor noise-reducing housing. When applied to a compressor, the upper and lower housings feature recessed areas that form a stepped structure relative to other areas. This enhances the housing's modality and reduces mid- and high-frequency noise without increasing housing thickness or material. Specifically, the first recessed area of the upper housing is located at the front end of the top of the upper housing and is arranged in a fan-shaped ring at an angle relative to the horizontal plane to enhance the top modality of the housing. A second recessed area with a groove structure is provided at the edge of the bottom of the lower housing to enhance the bottom modality of the housing. A third recessed area with a groove structure is provided at the front end of the first recessed area to further enhance the top modality of the housing, given the limited space available for the first recessed area. The first recessed area of the upper housing, located at the front end of the top of the upper housing and arranged in a fan-shaped ring at an angle relative to the horizontal plane, enhances the housing's modality while further reducing the housing's height, thus minimizing the space occupied by the compressor within the refrigerator or freezer. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0019] Figure 1 This is a perspective view of the upper housing of the miniaturized compressor noise reduction housing according to an embodiment of the present utility model; Figure 2 This is a bottom view of the upper housing of the miniaturized compressor noise reduction housing according to an embodiment of the present invention; Figure 3 This is a perspective view of the lower housing of the miniaturized compressor noise reduction housing according to an embodiment of the present utility model; Figure 4 This is a top view of the lower housing of the miniaturized compressor noise reduction housing according to an embodiment of the present invention. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0023] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model. Example
[0026] like Figures 1 to 4 As shown, the miniaturized compressor noise reduction housing in this embodiment includes an upper housing 1 and a lower housing 2. The lower opening edge of the upper housing 1 and the upper opening edge of the lower housing 2 are assembled as one piece. The enclosed space enclosed by the upper housing 1 and the lower housing 2 is used to place the internal mechanism.
[0027] A first recess 11 is formed by a recessed area at the top of the upper housing 1 from the outside in. The first recess 11 has a stepped structure relative to other areas at the top of the upper housing 1.
[0028] The first recess 11 is located at the front end of the top of the upper shell 1, and the outline of the first recess 11 is fan-shaped. The first recess 11 is arranged at an angle relative to the horizontal plane, which, relative to the horizontal arrangement of the first recess 11, enhances the modality of the top of the shell. The angle of inclination of the first recess 11 relative to the horizontal plane is α. When 25°≤α≤35°, the modality of the top of the shell is higher.
[0029] The designated area of the first recessed portion 11 is recessed from the outside in to form two third recessed portions 12, and the third recessed portions 12 have a stepped structure relative to the first recessed portion 11. The third recessed portion 12 is located at the front end of the first recessed portion 11, and the outline of the third recessed portion 12 has a groove structure.
[0030] The bottom of the lower housing 2 has a set area that is recessed from the outside in to form four second recesses 21. The second recesses 21 have a stepped structure relative to other areas of the bottom of the lower housing 2. The four second recesses 21 are located at the edge of the bottom of the lower housing 2, and the four second recesses 21 are arranged axially symmetrically with respect to the front-back direction of the housing. The outline of the second recesses 21 has a groove structure.
[0031] The compressor housing without a stepped structure has a housing mode of 3782.8; the miniaturized compressor noise reduction housing of this embodiment has a housing mode of 3991. A comparison shows that the miniaturized compressor noise reduction housing of this embodiment has an increased housing mode of 208.2, resulting in a measured noise reduction of 1.5 dB. Example
[0032] A compressor is provided with a miniaturized compressor noise reduction housing as described in Embodiment 1, wherein the compressor core is placed in a closed space enclosed by an upper housing 1 and a lower housing 2.
[0033] The present embodiment has now been described in detail with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the miniaturized compressor noise-reducing housing and the compressor of this utility model. The miniaturized compressor noise-reducing housing of this utility model, when applied to a compressor, has upper housing 1 and lower housing 2 with defined areas forming recessed portions (first recessed portion 11, second recessed portion 21, and third recessed portion 12) from the outside in, forming a stepped structure relative to other areas. This enhances the housing modality and reduces the medium and high frequency noise of the compressor without increasing the housing thickness or material. Specifically, the first recess 11 of the upper housing 1 is located at the front end of the top of the upper housing 1 and is configured as a fan-shaped ring inclined relative to the horizontal plane to enhance the shape of the top of the housing. A second recess 21 with a groove structure is provided at the edge of the bottom of the lower housing 2 to enhance the shape of the bottom of the housing. A third recess 12 with a groove structure is provided at the front end of the first recess 11 to further enhance the shape of the top of the housing based on the limited space of the first recess 11. The first recess 11 of the upper housing 1 is located at the front end of the top of the upper housing 1 and is configured as a fan-shaped ring inclined relative to the horizontal plane. This can enhance the shape of the housing and further reduce the height of the housing, thereby reducing the space occupied by the compressor in the refrigerator or freezer.
[0034] Of course, the above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model and should be protected by the present utility model.
Claims
1. A miniaturized compressor noise reduction housing, characterized in that, It includes an upper shell and a lower shell, which are assembled as one piece. The enclosed space enclosed by the upper and lower shells is used to house the movement. The top area of the upper housing is recessed from the outside to the inside to form at least one first recess, and the first recess has a stepped structure relative to other areas of the top of the upper housing. The bottom area of the lower housing is recessed from the outside to the inside to form at least one second recess, which has a stepped structure relative to other areas of the bottom of the lower housing.
2. The miniaturized compressor noise reduction housing according to claim 1, characterized in that, The designated area of the first recessed portion is recessed from the outside to the inside to form at least one third recessed portion, and the third recessed portion has a stepped structure relative to the first recessed portion.
3. The miniaturized compressor noise reduction housing according to claim 2, characterized in that, The third recess is located at the front end of the first recess, and the outline of the third recess is a groove structure.
4. The miniaturized compressor noise reduction housing according to claim 2 or 3, characterized in that, The third recess is provided in two parts.
5. The miniaturized compressor noise reduction housing according to claim 1, characterized in that, The first recess is located at the front end of the top of the upper housing, and the outline of the first recess is fan-shaped.
6. The miniaturized compressor noise reduction housing according to claim 5, characterized in that, The first recess is arranged at an angle relative to the horizontal plane.
7. The miniaturized compressor noise reduction housing according to claim 6, characterized in that, The first recessed portion has an inclination angle of α relative to the horizontal plane, where 25° ≤ α ≤ 35°.
8. The miniaturized compressor noise reduction housing according to claim 1, characterized in that, The second recess is located at the edge of the bottom of the lower housing, and the outline of the second recess is a groove structure.
9. The miniaturized compressor noise reduction housing according to claim 1 or 8, characterized in that, The second recess is provided in four parts.
10. A compressor, characterized in that, The compressor is provided with a miniaturized compressor noise reduction housing as described in any one of claims 1 to 9.