Compressor noise reduction structure and heat pump system

Abstract

The utility model provides a compressor noise reduction structure and a heat pump system, and relates to the technical field of electrical equipment, the compressor noise reduction structure comprises a shell, a plurality of first sound insulation plates and a plurality of second sound insulation plates, and a mounting cavity used for mounting a compressor is formed in the shell; the first sound insulation plates are correspondingly attached to the cavity wall of the mounting cavity so that a sound insulation bin can be formed in the mounting cavity, the second sound insulation plates are located in the sound insulation bin, the multiple second sound insulation plates are detachably connected to form a sound absorption bin, the compressor is located in the sound absorption bin, and a pipeline connected with the compressor penetrates through the second sound insulation plates to extend into the sound insulation bin. Therefore, the maintenance difficulty of the compressor and the pipeline is not increased while the operation noise of the compressor is effectively reduced.

Description

Technical Field

[0001] This application belongs to the technical field of electrical appliances, and particularly relates to a compressor noise reduction structure and a heat pump system. Background Art

[0002] The noise generated during the operation of the compressor is a major source of noise in the heat pump system, and the noise during the operation of the compressor mainly comes from vibration noise and airflow noise. During the operation of the compressor, its internal components will vibrate, not only generating relatively large noise by themselves, but also driving the rigid pipelines connected to it to vibrate synchronously, further increasing the noise. When the compressor compresses the refrigerant, certain noise will also be generated due to the impact and compression of the airflow. The superposition of various factors results in generally large noise during the operation of the compressor.

[0003] Currently, generally, the method of wrapping sound insulation materials outside the compressor is adopted to reduce the noise of the compressor. The sound insulation materials are generally wrapped outside the compressor and on the rigid pipelines connected to the compressor after the heat pump system is assembled. This method not only takes time and effort, but also is rather troublesome to disassemble when it is necessary to repair the compressor and its connected pipelines. Utility Model Content

[0004] This application provides a compressor noise reduction structure and a heat pump system to improve the convenience of disassembly and installation of the noise reduction structure while reducing the operating noise of the compressor.

[0005] In a first aspect, an embodiment of this application provides a compressor noise reduction structure, including a housing, a plurality of first sound insulation boards and a plurality of second sound insulation boards. An installation cavity is provided inside the housing;

[0006] The first sound insulation boards are correspondingly attached to the inner wall of the installation cavity to form a sound insulation chamber inside the installation cavity. The second sound insulation boards are located inside the sound insulation chamber, and a plurality of the second sound insulation boards are detachably connected to form a sound absorption chamber. The sound absorption chamber is used to install the compressor, and the pipeline connected to the compressor passes through the second sound insulation board and extends into the sound insulation chamber.

[0007] In some possible designs, the plurality of second sound insulation boards include a base, side plates and a top plate, and the two ends of the side plates are respectively detachably connected to the base and the top plate.

[0008] In some possible designs, the side plates are respectively connected to the base and the top plate by magic tapes.

[0009] In some possible designs, a first avoidance groove is provided at one end where the side plate is connected to the top plate, and the depth of the first avoidance groove is greater than the thickness of the top plate, so that there is a gap between the side of the top plate facing the base and the bottom of the first avoidance groove.

[0010] In some possible designs, the first sound insulation board is pasted on the inner wall of the installation cavity.

[0011] In some possible designs, the first sound insulation board and the second sound insulation board include at least one sound absorption layer.

[0012] In some possible designs, the sound absorption layer includes at least one of an elastic rubber layer and a felt layer.

[0013] In some possible designs, the sound absorption layer of the first sound insulation board includes two layers of elastic rubber layers and one layer of felt layer, and the felt layer is located between the two layers of elastic rubber layers.

[0014] In some possible designs, the sound absorption layer of the second sound insulation board includes two layers of felt layers and one layer of elastic rubber layer, and the elastic rubber layer is located between the two layers of felt layers.

[0015] In a second aspect, an embodiment of the present application provides a heat pump system, including a compressor, and further including the compressor noise reduction structure as described in the first aspect.

[0016] Advantages of the present application:

[0017] In the compressor noise reduction structure and the heat pump system provided by the embodiments of the present application, the compressor noise reduction structure forms a sound insulation chamber in the installation cavity by arranging the first sound insulation board and the second sound insulation board, so that the first sound insulation board fits with the inner wall of the installation cavity for placing the compressor. The second sound insulation board is detachably connected in the sound insulation chamber to form a sound absorption chamber. The compressor is installed in the sound absorption chamber, and pipelines connected to the compressor, such as a four-way valve, extend through the second sound insulation board into the sound insulation chamber. The sound absorption chamber absorbs the noise generated by the operation of the compressor once. After the sound wave passes through the second sound insulation board and enters the sound insulation chamber, it is absorbed twice by the first sound insulation board. At the same time, the first sound insulation board can also insulate the pipelines inside the sound insulation chamber, thereby effectively preventing the noise from radiating outwards and reducing the operation noise of the compressor. In addition, the first sound insulation board is directly fixed on the inner wall of the installation cavity. When overhauling the pipelines or the compressor, it is not necessary to disassemble them separately. The second sound insulation boards are detachably connected. By directly separating the corresponding second sound insulation boards, the compressor can be overhauled. After the overhaul is completed, the second sound insulation boards can be assembled again. This not only does not increase the overhaul difficulty of the compressor and the pipelines connected to the compressor, but also can quickly return to the original state for noise reduction after the compressor and the pipelines are overhauled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present application and used together with the description to explain the principles of the present application.

[0019] Figure 1Internal structure schematic diagram of the compressor noise reduction structure provided by the embodiment of the present application;

[0020] Figure 2 Structure schematic diagram of the top plate in the compressor noise reduction structure provided by the embodiment of the present application;

[0021] Figure 3 Structure schematic diagram of the side plate in the compressor noise reduction structure provided by the embodiment of the present application;

[0022] Figure 4 Structure schematic diagram of the heat pump system provided by the embodiment of the present application;

[0023] Figure 5 Explosion diagram of the heat pump system provided by the embodiment of the present application.

[0024] Reference numerals:

[0025] 10 - Compressor, 100 - Housing, 110 - Top cover, 120 - Front panel, 130 - Rear panel, 140 - Bottom plate, 200 - First sound insulation board, 310 - Top plate, 320 - Side plate, 330 - Base.

[0026] Through the above-mentioned drawings, the clear embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0028] The terms "first", "second", "third", "fourth", etc. (if any) in the specification, claims and above-mentioned drawings of the present invention are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein, for example, can be implemented in an order other than those illustrated or described herein.

[0029] In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0030] The noise generated during the operation of the compressor is a major source of the noise of heat pump systems, air conditioning equipment, etc. The noise generated during the operation of the compressor mainly comes from vibration noise and air flow noise. During the operation of the compressor, its internal components will vibrate, not only generating relatively large noise itself, but also driving the rigid pipelines connected to it to vibrate synchronously, further increasing the noise. The noise generated by this vibration is generally a low-frequency vibration sound or a humming sound, which can usually be heard at a relatively long distance. At the same time, when the compressor compresses the refrigerant, certain noise will also be generated due to the impact and compression of the air flow. This noise usually appears as a sharp high-frequency sound or a cracking sound, which is usually heard when approaching the compressor. Of course, there is also noise caused by other factors such as friction. The superposition of these noises makes the operation of the compressor generally have relatively large noise.

[0031] Currently, generally, the method of wrapping sound insulation materials outside the compressor is adopted to reduce the noise of the compressor. The sound insulation materials are generally wrapped outside the compressor and on the rigid pipelines connected to the compressor after the heat pump system is assembled. Such a method not only takes time and effort, but also is relatively troublesome to disassemble when it is necessary to repair the compressor and the pipelines connected to it.

[0032] In order to avoid the above problems, the embodiments of the present application provide a compressor noise reduction structure and a heat pump system. On the one hand, the compressor noise reduction structure can effectively reduce the noise generated during the operation of the compressor. On the other hand, it can achieve rapid disassembly and assembly, facilitate the later repair of the compressor and the pipelines, and can also be reused for noise reduction after the repair.

[0033] It can be understood that the compressor noise reduction structure provided by the embodiments of the present application can be applied to various devices that need to use a compressor, such as heat pump systems, air conditioning equipment, etc., as long as there is a noise reduction requirement. This embodiment does not limit it here. For the convenience of description, the following embodiments mainly take the heat pump system as an example for illustration.

[0034] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. These specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0035] Please refer toFigure 1 and Figure 5 As shown in Figure 5 , this embodiment provides a noise reduction structure for a compressor 10, which includes a housing 100, a plurality of first sound insulation plates 200, and a plurality of second sound insulation plates.

[0036] An installation cavity for installing the compressor 10 is provided inside the housing 100. Taking a heat pump system as an example, components such as an evaporator and a radiator fan can be arranged inside the housing. At this time, only a middle partition plate needs to be added inside the housing, and the middle partition plate is sequentially connected to the top cover 110, rear plate 130, front panel 120, and bottom plate 140 of the housing 100 to form the installation cavity.

[0037] The plurality of first sound insulation plates 200 are respectively connected to the inner wall of the installation cavity to form a sound insulation chamber inside the installation cavity. The first sound insulation plates 200 can be arranged on each inner wall of the installation cavity. In some cases, the first sound insulation plates 200 may not be arranged at the bottom, and only the first sound insulation plates 200 are arranged on the top cover 110, middle partition plate, rear plate 130, and front panel 120. Specifically, it can be selected according to the actual situation, and this embodiment does not limit it here.

[0038] The second sound insulation plates are located inside the sound insulation chamber, and the plurality of second sound insulation plates are correspondingly connected to form a sound absorption chamber. The second sound insulation plates are detachably connected to each other, and the compressor 10 is located inside the sound absorption chamber.

[0039] It can be understood that the second sound insulation plates are provided with holes at corresponding positions for the pipelines connected to the compressor 10 to pass through, so that the pipelines connected to the compressor 10 can pass through the second sound insulation plates and extend into the sound insulation chamber. Of course, the first sound insulation plates 200 are provided with holes corresponding to the installation cavity walls, so that the pipelines can extend outside the installation cavity to be connected to other components.

[0040] During use, the second sound insulation plates are correspondingly connected to wrap the outside of the compressor 10, and the first sound insulation plates 200 are fixed on the inner wall of the installation cavity, which can effectively reduce the noise of the compressor 10. Specifically, the noise generated by the operation of the compressor 10 is absorbed once by the sound absorption chamber to achieve primary noise reduction. After the sound waves pass through the second sound insulation plates and enter the sound insulation chamber, the first sound insulation plates 200 perform secondary noise reduction. At the same time, the first sound insulation plates 200 can also insulate the pipelines inside the sound insulation chamber, thereby effectively preventing the noise from radiating outward and reducing the operating noise of the compressor 10.

[0041] When maintenance of the pipeline is required, the detachable or openable plate corresponding to the installation cavity can be directly opened according to the conventional operation, without the need to additionally process the first sound insulation plate 200, and the maintenance difficulty will not be increased. If the compressor 10 also needs to be maintained, the corresponding second sound insulation plate can be directly disassembled, and the operation is also relatively simple. After the maintenance is completed, the second sound insulation plate can be directly assembled and reused, which not only does not increase the additional cost, but also helps to quickly restore the original state for noise reduction.

[0042] In some possible embodiments, the multiple second sound insulation plates include a base 330, side plates 320 and a top plate 310. The two ends of the side plates 320 are detachably connected to the base 330 and the top plate 310 respectively. After the compressor 10 is installed, the feet of the compressor 10 will lift the compressor 10, so that there is a gap between the bottom of the compressor 10 and the bottom plate 140 of the installation cavity. When assembling the sound absorption chamber, the base 330 is snapped under the compressor 10, the side plates 320 are wrapped around the outside of the compressor 10, the top plate 310 is covered on the top of the side plates 320, and at the same time, the side plates 320 are connected to the base 330 and the top plate 310, so that the assembly of the sound absorption chamber is relatively simple. When the compressor 10 needs to be maintained, the top plate 310 is directly removed from the side plates 320, and the connection points between the top of the compressor 10 and each pipeline can be maintained, or the side plates 320 are separated from the base 330 to maintain the entire compressor 10, which is extremely convenient to use.

[0043] Of course, please refer to Figure 2 As shown, a plurality of holes for pipelines connected to the compressor 10 to pass through are correspondingly provided on the top plate 310, so as to facilitate the connection of other components to the compressor 10.

[0044] Furthermore, the side plates 320 are respectively connected to the base 330 and the top plate 310 by magic tapes. The magic tapes include a hook surface and a loop surface. One of the hook surface or the loop surface of the magic tape can be provided on the side plates 320, and the other is provided on the base 330 and the top plate 310. During assembly, the corresponding hook surface and loop surface are made to fit together.

[0045] This can not only stably connect the side plates 320 to the base 330 and the top plate 310, but also facilitate the separation of the side plates, the base 330 and the top plate 310, improving the convenience of maintenance.

[0046] It can be understood that the side plates 320 can also be connected to the base 330 and the top plate 310 by other means, such as snap connection, bolt connection, etc., as long as the side plates 320 can be separated from the base 330 and the top plate 310 during maintenance. This embodiment does not limit it here.

[0047] In addition, the side plates 320 enclose a cylindrical structure that matches the shape of the compressor 10. To improve the sealing effect, the top plate 310 can be directly inserted into the cylindrical structure. After the top plate 310 is inserted into the cylindrical structure, there is no fulcrum, and it is inconvenient to separate the top plate 310 from the side plates 320.

[0048] For this, see Figure 3 As shown, in this embodiment, a first avoidance groove is provided at one end where the side panel 320 and the top panel 310 are connected, and the depth of the first avoidance groove is greater than the thickness of the top panel 310, so that a gap exists between the side of the top panel 310 facing the base 330 and the bottom of the first avoidance groove, so that a hand can be extended through the gap to pull the top panel 310, and the top panel 310 can be pulled out of the cylindrical structure formed by the side panel 320, thereby improving the convenience of separating the top panel 310 from the side panel 320.

[0049] Furthermore, in order to reduce the volume of the sound absorbing chamber, a second avoidance groove may be provided at one end of the side plate 320 close to the base 330 , and the second avoidance groove is used for the foot of the compressor 10 to extend out.

[0050] Generally speaking, the second avoidance groove can be set as a T-shaped groove, which can adapt to the structure of the base of most compressors 10 currently.

[0051] In some possible implementations, the first sound insulation board 200 is fixed to the inner wall of the installation cavity by gluing, so that the first sound insulation board 200 can fit tightly to the inner wall of the installation cavity.

[0052] Of course, the first sound insulation board 200 can also be fixed to the inner wall of the installation cavity by means of bolts, clamping, etc., as long as the first sound insulation board 200 will not be separated from the inner wall of the installation cavity during use, and this embodiment does not limit it here.

[0053] In some possible implementations, the first sound insulation board 200 and the second sound insulation board each include at least one sound absorbing layer, so as to absorb noise through the sound absorbing layer, reduce noise radiation, and improve noise reduction effect.

[0054] The first sound insulation board 200 and the second sound insulation board may both consist of only a sound absorbing layer. In this case, Velcro may be provided on both sides of the side board 320 in the second sound insulation board so that the two sides are overlapped to form a cylindrical structure.

[0055] Of course, the first sound insulation board 200 and the second sound insulation board may also be supported by additional plates with a certain rigidity. In this case, it is sufficient as long as the sound absorbing layer is correspondingly disposed on the plates. This embodiment does not limit this.

[0056] Specifically, the sound absorption layer can be made of common sound absorption materials, such as porous materials that attenuate sound waves, flexible materials that absorb sound by resonance, film materials, etc., as long as they can correspond to the noise frequency of the compressor 10 and effectively reduce the operating noise of the compressor 10.

[0057] Furthermore, the sound absorption layer includes at least one of an elastic rubber skin layer and a felt layer.

[0058] Among them, the elastic rubber skin has good elasticity and flexibility and can absorb noise by resonance. It can be made of polyvinyl chloride, polyurethane acrylate composite, or other rubber materials. This embodiment does not limit it here.

[0059] The felt layer is made of a mixture of polymer materials and various inorganic fiber materials. The felt is a porous material with a large number of micropores and gaps inside, which can gradually attenuate the sound waves passing through the felt.

[0060] Using the felt layer and the elastic rubber skin layer in combination can increase the covered sound wave frequencies, thereby improving the noise reduction effect.

[0061] Exemplarily, the first sound insulation board 200 is a sound absorption layer, which includes two layers of elastic rubber skin layers and one layer of felt layer, and the felt layer is located between the two layers of elastic rubber skin layers. The thickness of the elastic rubber skin layer is thinner and harder relative to the felt layer. Setting the elastic rubber skin layer on both sides of the felt layer can facilitate gluing to fix the first sound insulation board 200 on the inner wall of the installation cavity.

[0062] The second sound insulation board is also a sound absorption layer, which includes two layers of felt layers and one layer of elastic rubber skin layer, and the elastic rubber skin layer is located between the two layers of felt layers.

[0063] The first sound insulation board 200 and the second sound insulation board are arranged in this way, which can better cover sound waves of different frequencies, improve the noise reduction effect, and at the same time facilitate the installation of the first sound insulation board 200 and the second sound insulation board.

[0064] It can be understood that the sound absorption layer can also be other structures. For example, only one layer of felt layer and one layer of elastic rubber skin layer are set, or only the elastic rubber skin layer is used, or only the felt layer is used, as long as effective noise reduction can be achieved. This embodiment does not limit it here.

[0065] In addition, between adjacent sound absorption layers, between the elastic rubber skin layer and the felt layer, they can be directly connected by gluing, or can be connected by buckle parts or other means, as long as they do not separate during use. This embodiment does not limit it here.

[0066] Please refer to Figure 4 and Figure 5As shown, an embodiment of the present application further provides a heat pump system, which includes a compressor 10 and also includes the compressor 10 noise reduction structure in the above embodiment.

[0067] It can be understood that the heat pump system further includes structures such as an evaporator, a cooling fan, a condenser, etc. The setting methods and working principles of each component are well known to those skilled in the art, and will not be elaborated herein in this embodiment.

[0068] After the compressor 10 is installed in the sound absorption chamber, the sound absorption chamber and the sound insulation chamber can cooperate to double-process the noise generated by the vibration of the compressor 10 and the pipeline connected thereto during the operation of the compressor 10, effectively reducing the operation noise of the heat pump system, and at the same time, it will not block the maintenance of the compressor 10 and the pipeline.

[0069] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A noise reduction structure for a compressor, characterized in that, It includes a housing, a plurality of first sound insulation boards and a plurality of second sound insulation boards, and an installation cavity is arranged inside the housing; The first sound insulation boards are correspondingly attached to the cavity wall of the installation cavity to form a sound insulation chamber inside the installation cavity. The second sound insulation boards are located in the sound insulation chamber, and a plurality of the second sound insulation boards are detachably connected to form a sound absorption chamber. The sound absorption chamber is used for installing a compressor, and a pipeline connected to the compressor extends through the second sound insulation boards into the sound insulation chamber.

2. The compressor noise reduction structure according to claim 1, wherein, The plurality of second sound insulation boards include a base, side plates and a top plate, and two ends of the side plates are respectively detachably connected to the base and the top plate.

3. The compressor noise reduction structure according to claim 2, characterized in that, The side plates are respectively connected to the base and the top plate by magic tapes.

4. The compressor noise reduction structure according to claim 3, characterized in that, A first avoidance groove is arranged at one end of the side plate connected to the top plate, and the depth of the first avoidance groove is greater than the thickness of the top plate, so that there is a gap between the side of the top plate facing the base and the bottom of the first avoidance groove.

5. The compressor noise reduction structure according to claim 1, characterized in that, The first sound insulation boards are pasted on the inner wall of the installation cavity.

6. The compressor noise reduction structure according to any one of claims 1-5, characterized in that, The first sound insulation boards and the second sound insulation boards include at least one sound absorption layer.

7. The compressor noise reduction structure according to claim 6, characterized in that, The sound absorption layer includes at least one of an elastic rubber skin layer and a felt layer.

8. The compressor noise reduction structure according to claim 7, characterized in that, The sound absorption layer of the first sound insulation board includes two elastic rubber skin layers and one felt layer, and the felt layer is located between the two elastic rubber skin layers.

9. The compressor noise reduction structure according to claim 7, characterized in that The sound absorption layer of the second sound insulation board includes two felt layers and one elastic rubber skin layer, and the elastic rubber skin layer is located between the two felt layers.

10. A heat pump system, comprising a compressor, characterized in that, It further includes a compressor noise reduction structure according to any one of claims 1-9.

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