Compressor and air conditioner

Abstract

This utility model discloses a compressor and an air conditioner, relating to the field of air conditioning technology. The compressor includes a compressor body and a noise-reducing layer. The noise-reducing layer covers the compressor body and includes a sound-insulating composite layer and a sound-absorbing composite layer stacked together. The sound-absorbing composite layer is disposed on the side of the sound-insulating composite layer closest to the compressor body. The sound-insulating composite layer includes a first protective layer, a filling sound-insulating layer, and a second protective layer stacked sequentially. The filling sound-insulating layer is used to isolate noise generated by the compressor body. The sound-absorbing composite layer includes a first reinforcing layer, a fiber sound-absorbing layer, and a second reinforcing layer stacked sequentially. The fiber sound-absorbing layer is made of at least two components of sound-absorbing cotton material and is used to absorb noise generated by the compressor body. The compressor provided by this utility model can effectively reduce or even eliminate the noise emitted by the compressor body, providing good noise reduction and improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a compressor and an air conditioner. Background Technology

[0002] Currently, with the continuous improvement of living standards, people's requirements for air conditioners are also increasing. During the operation of air conditioners, the compressor in the outdoor unit will emit a lot of noise. In order to eliminate the noise, a layer of sound-absorbing cotton is usually wrapped around the compressor. However, the sound absorption and noise reduction effect of a single layer of sound-absorbing cotton is poor, resulting in the compressor still emitting a lot of noise, which affects the user experience. Utility Model Content

[0003] The problem solved by this invention is how to effectively reduce or even eliminate the noise emitted by the compressor body, with good noise reduction effect and improved user experience.

[0004] To solve the above problems, the technical solution of this utility model is implemented as follows: Firstly, this utility model provides a compressor, including a compressor body and a noise reduction layer. The noise reduction layer covers the compressor body and includes a sound insulation composite layer and a sound absorption composite layer stacked together. The sound absorption composite layer is disposed on the side of the sound insulation composite layer close to the compressor body. The sound insulation composite layer includes a first protective layer, a filling sound insulation layer, and a second protective layer stacked sequentially. The filling sound insulation layer is used to isolate noise generated by the compressor body. The sound absorption composite layer includes a first reinforcing layer, a fiber sound-absorbing layer, and a second reinforcing layer stacked sequentially. The fiber sound-absorbing layer is made of sound-absorbing cotton material of at least two components and is used to absorb noise generated by the compressor body. Compared with the prior art, the compressor provided by this utility model, due to the use of a first protective layer, a filling sound insulation layer, and a second protective layer stacked together, as well as a first reinforcing layer, a fiber sound-absorbing layer, and a second reinforcing layer stacked together, can effectively reduce or even eliminate the noise emitted by the compressor body, resulting in good noise reduction and improved user experience.

[0005] Furthermore, both the first and second protective layers are made of polyvinyl chloride (PVC); and / or, the filling sound insulation layer is made of felt. The filling sound insulation layer effectively improves the sound insulation performance of the sound insulation composite layer, improves poor sound insulation at resonance points, and provides good noise reduction.

[0006] Furthermore, the thickness of both the first and second protective layers is 0.5mm-2mm; and / or, the thickness of the sound-insulating filling layer is 4mm-6mm. Appropriate thicknesses of the first, second, and sound-insulating layers can minimize material costs and improve economic efficiency while ensuring sound insulation performance.

[0007] Furthermore, both the first and second reinforcing layers are made of non-woven fabric; and / or, the fiber sound-absorbing layer is made of a two-component sound-absorbing cotton material, which includes interlaced polypropylene microfibers and polyester monofibers. The fiber sound-absorbing layer can generate friction through its internal pore structure, converting sound energy into heat energy for absorption and dissipation, resulting in excellent sound absorption.

[0008] Furthermore, the thickness of both the first and second reinforcing layers is 0.1mm-1mm; and / or, the thickness of the fiber sound-absorbing layer is 4mm-6mm. Appropriate thicknesses of the first and second reinforcing layers and the fiber sound-absorbing layer can minimize material costs and improve economic efficiency while ensuring sound insulation performance.

[0009] Furthermore, the first protective layer, the filling sound insulation layer, and the second protective layer are bonded together with a water-based adhesive; and / or, the first reinforcing layer, the fiber sound-absorbing layer, and the second reinforcing layer are bonded together with a hot melt adhesive. This improves the stability of the connection.

[0010] Furthermore, the noise reduction layer also includes a soft padding layer, which is stacked on the side of the sound insulation composite layer away from the sound absorption composite layer. The soft padding layer is used to contact the casing of the outdoor unit of the air conditioner to achieve the soft padding function and avoid abnormal noise.

[0011] Furthermore, the soft covering layer is made of felt and has a thickness of 4mm-6mm. The soft covering layer and the first protective layer are bonded together with water-based adhesive to improve the stability of the connection.

[0012] Furthermore, one end of the soft-pack layer is provided with a male Velcro strap, and the other end with a female Velcro strap, which are then bonded together. This allows the noise-reducing layer to be tightly wrapped around the compressor body, facilitating assembly and disassembly and improving the noise reduction effect.

[0013] Secondly, this utility model provides an air conditioner including the aforementioned compressor. The compressor includes a compressor body and a noise-reducing layer. The noise-reducing layer covers the compressor body and includes a sound-insulating composite layer and a sound-absorbing composite layer stacked together. The sound-absorbing composite layer is disposed on the side of the sound-insulating composite layer closest to the compressor body. The sound-insulating composite layer includes a first protective layer, a filling sound-insulating layer, and a second protective layer stacked sequentially. The filling sound-insulating layer is used to isolate noise generated by the compressor body. The sound-absorbing composite layer includes a first reinforcing layer, a fiber sound-absorbing layer, and a second reinforcing layer stacked sequentially. The fiber sound-absorbing layer is made of at least two components of sound-absorbing cotton material and is used to absorb noise generated by the compressor body. The air conditioner can effectively reduce or even eliminate the noise emitted by the compressor body, providing good noise reduction and improving the user experience. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the compressor described in the first embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the noise reduction layer in the compressor described in the first embodiment of this utility model; Figure 3 These are sound insulation performance curves for two different protective layers; Figure 4 These are bar charts showing the sound insulation performance of two different noise reduction structures; Figure 5 This is a schematic diagram of the structure of the noise reduction layer in the compressor described in the second embodiment of this utility model.

[0015] Explanation of reference numerals in the attached figures: 100 - Compressor; 110 - Compressor body; 120 - Noise reduction layer; 121 - Sound insulation composite layer; 1211 - First protective layer; 1212 - Filled sound insulation layer; 1213 - Second protective layer; 122 - Sound absorption composite layer; 1221 - First reinforcing layer; 1222 - Fiber sound absorption layer; 1223 - Second reinforcing layer; 123 - Soft covering layer. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] First Embodiment Please refer to the reference. Figure 1 and Figure 2 This utility model embodiment provides a compressor 100 for compressing refrigerant. It can effectively reduce or even eliminate the noise emitted by the compressor body 110, with good noise reduction effect and improved user experience.

[0018] It should be noted that the compressor 100 is used in the outdoor unit of the air conditioner (not shown in the figure). The outdoor unit is installed outdoors and connected to the indoor unit of the air conditioner (not shown in the figure). The outdoor unit and the indoor unit work together to achieve the indirect circulation of refrigerant, so that the indoor unit can blow hot or cold air into the room to achieve the heating or cooling function.

[0019] The compressor 100 includes a compressor body 110 and a noise reduction layer 120. The noise reduction layer 120 covers the compressor body 110, which is used to compress refrigerant. The noise reduction layer 120 is used to reduce the noise generated by the operation of the compressor body 110 to improve the user experience. Specifically, the noise reduction layer 120 includes a sound insulation composite layer 121 and a sound absorption composite layer 122 stacked together. The sound absorption composite layer 122 is disposed on the side of the sound insulation composite layer 121 closest to the compressor body 110, that is, the sound absorption composite layer 122 is disposed on the inner side of the sound insulation composite layer 121. The sound insulation composite layer 121 and the sound absorption composite layer 122 work together to reduce the noise generated by the operation of the compressor body 110.

[0020] It is worth noting that the noise emitted by the compressor body 110 includes both mid-to-high frequency noise and low-frequency noise. Mid-to-high frequency noise has a shorter wavelength and lower energy, while low-frequency noise has a longer wavelength and higher energy. To address this, the noise reduction layer 120 in this invention employs a layered structure of a sound-insulating composite layer 121 and a sound-absorbing composite layer 122. On one hand, the sound-absorbing composite layer 122 converts mid-to-high frequency noise into heat energy, which is then absorbed and dissipated. On the other hand, the sound-insulating composite layer 121 isolates low-frequency noise, effectively reducing or even eliminating the noise emitted by the compressor body 110, resulting in excellent noise reduction.

[0021] The sound insulation composite layer 121 includes a first protective layer 1211, a filling sound insulation layer 1212, and a second protective layer 1213 stacked sequentially. The first protective layer 1211 and the second protective layer 1213 are used to shield and protect the filling sound insulation layer 1212. The first protective layer 1211 and the second protective layer 1213 also serve to provide sound insulation. The filling sound insulation layer 1212 is used to isolate the noise (mainly low-frequency noise) generated by the compressor body 110.

[0022] Optionally, both the first protective layer 1211 and the second protective layer 1213 are made of polyvinyl chloride material. The first protective layer 1211 and the second protective layer 1213 are formed by polyvinyl chloride calendering. By combining the first protective layer 1211 and the second protective layer 1213, the sound insulation performance can be further improved.

[0023] Optionally, the sound insulation layer 1212 is made of felt, the main component of which is recycled polyester fiber material. It is formed by continuous needle punching from top to bottom and serves as the filling material between the first protective layer 1211 and the second protective layer 1213. The sound insulation layer 1212 can effectively improve the sound insulation performance of the sound insulation composite layer 121, improve the poor sound insulation at the resonance point, and have a good noise reduction effect.

[0024] Optionally, the thickness of both the first protective layer 1211 and the second protective layer 1213 is 0.5mm-2mm. A reasonable thickness of the first protective layer 1211 and the second protective layer 1213 can minimize material costs and improve economic efficiency while ensuring sound insulation performance. In this embodiment, the thickness of both the first protective layer 1211 and the second protective layer 1213 is 1mm, but it is not limited to this. In other embodiments, the thickness of both the first protective layer 1211 and the second protective layer 1213 can be 0.5mm or 2mm; the thickness of the first protective layer 1211 and the second protective layer 1213 is not specifically limited.

[0025] Optionally, the thickness of the sound insulation layer 1212 is 4mm-6mm. A reasonable thickness of the sound insulation layer 1212 can save material costs and improve economic efficiency while ensuring sound insulation effect. In this embodiment, the thickness of the sound insulation layer 1212 is 5mm, but it is not limited to this. In other embodiments, the thickness of the sound insulation layer 1212 can be 4mm or 6mm, and the thickness of the sound insulation layer 1212 is not specifically limited.

[0026] The sound-absorbing composite layer 122 includes a first reinforcing layer 1221, a fiber sound-absorbing layer 1222, and a second reinforcing layer 1223 stacked sequentially. The second reinforcing layer 1223 is attached to the outside of the compressor body 110. The first reinforcing layer 1221 and the second reinforcing layer 1223 are used to shield and protect the fiber sound-absorbing layer 1222. The first protective layer 1211 and the second protective layer 1213 are also used to improve the strength of the entire noise reduction layer 120. The fiber sound-absorbing layer 1222 is made of at least two components of sound-absorbing cotton material and is used to absorb the noise (mainly mid-to-high frequency noise) generated by the compressor body 110.

[0027] Optionally, both the first reinforcing layer 1221 and the second reinforcing layer 1223 are made of non-woven fabric, and the combination of the first reinforcing layer 1221 and the second reinforcing layer 1223 further improves the overall structural strength.

[0028] Optionally, the fiber sound-absorbing layer 1222 is made of a two-component sound-absorbing cotton material, which includes interlaced polypropylene microfibers and polyester monofibers. The interlaced polypropylene microfibers and polyester monofibers in the fiber sound-absorbing layer 1222 have the characteristics of uniform fiber distribution, complex interlacing, and loose and porous structure. The fiber sound-absorbing layer 1222 can generate friction through its internal pore structure, converting sound energy into heat energy for absorption and dissipation (mainly targeting mid-to-high frequency noise), resulting in good sound absorption effect.

[0029] Optionally, the thickness of both the first reinforcing layer 1221 and the second reinforcing layer 1223 is 0.1mm-1mm. A reasonable thickness of the first reinforcing layer 1221 and the second reinforcing layer 1223 can minimize material costs and improve economic efficiency while ensuring the reinforcing effect. In this embodiment, the thickness of both the first reinforcing layer 1221 and the second reinforcing layer 1223 is 0.5mm, but it is not limited to this. In other embodiments, the thickness of both the first reinforcing layer 1221 and the second reinforcing layer 1223 can be 0.1mm or 1mm; the thickness of the first reinforcing layer 1221 and the second reinforcing layer 1223 is not specifically limited.

[0030] Optionally, the thickness of the fiber sound-absorbing layer 1222 is 4mm-6mm. A reasonable thickness of the fiber sound-absorbing layer 1222 can save material costs and improve economic efficiency while ensuring sound absorption effect. In this embodiment, the thickness of the fiber sound-absorbing layer 1222 is 5mm, but it is not limited to this. In other embodiments, the thickness of the fiber sound-absorbing layer 1222 can be 4mm or 6mm, and the thickness of the fiber sound-absorbing layer 1222 is not specifically limited.

[0031] Furthermore, the first protective layer 1211, the filling sound insulation layer 1212, and the second protective layer 1213 are bonded together with a water-based adhesive to achieve bonding and fixation, thereby improving connection stability. The first reinforcing layer 1221, the fiber sound-absorbing layer 1222, and the second reinforcing layer 1223 are bonded together with a hot melt adhesive. That is, the polypropylene microfibers and polyester monofibers in the fiber sound-absorbing layer 1222 are bonded to the non-woven fabric with hot melt adhesive after being melt-blown at high temperature, thereby achieving bonding and fixation, and improving connection stability. The second protective layer 1213 and the first reinforcing layer 1221 are bonded together with a water-based adhesive to achieve bonding and fixation, and improve connection stability, for the sound insulation composite layer 121 and the sound absorption composite layer 122.

[0032] Optionally, the noise reduction layer 120 also includes a soft padding layer 123. The soft padding layer 123 is stacked on the side of the sound insulation composite layer 121 away from the sound absorption composite layer 122. The soft padding layer 123 is used to directly contact the casing of the outdoor unit of the air conditioner (not shown) to achieve the soft padding function and avoid abnormal noise. Specifically, the soft padding layer 123 is made of felt, the main component of which is recycled polyester fiber. The thickness of the soft padding layer 123 is 4mm-6mm. The soft padding layer 123 and the first protective layer 1211 are bonded together with water-based adhesive to improve connection stability.

[0033] Furthermore, one end of the soft-pack layer 123 is provided with a sub-hook and loop fastener (not shown) and the other end is provided with a female hook and loop fastener (not shown). The sub-hook and loop fastener are bonded together so as to tightly wrap the noise reduction layer 120 around the compressor body 110, making it easy to disassemble and install and improve the noise reduction effect.

[0034] It should be noted that in the sound insulation composite layer 121, the sound insulation effects of a single-layer protective layer and a double-layer protective layer (including a first protective layer 1211 and a second protective layer 1213 spaced apart) are compared. The comparison method is based on the sound insulation calculation of the transfer matrix method. The greater the sound insulation, the better the sound insulation effect. The thickness of the single-layer protective layer is 2mm, and the thickness of the first protective layer 1211 and the second protective layer 1213 in the double-layer protective layer is 1mm. There is a gap between the first protective layer 1211 and the second protective layer 1213. The materials of the single-layer and double-layer protective layers are the same. The sound insulation performance curves of the two different protective layers are obtained (see [link]). Figure 3 ).from Figure 3 It can be seen that in the low-frequency noise stage, the sound insulation effect of the double-layer protective layer and the single-layer protective layer is basically the same; in the mid-frequency noise stage, the sound insulation effect of the double-layer protective layer is poor due to resonance, but in this utility model, a filling sound insulation layer 1212 is provided between the first protective layer 1211 and the second protective layer 1213, which can improve the sound insulation effect and improve the poor sound insulation at the resonance point; in the high-frequency noise stage, the sound insulation effect of the double-layer protective layer is far superior to that of the single-layer protective layer.

[0035] Furthermore, the sound insulation effect of the single-layer sound-absorbing cotton before optimization in the prior art is compared with the sound insulation effect of the optimized sound-absorbing and noise-reducing layer 120 of this utility model. The comparison method is to obtain the sound pressure level of the noise after passing through the two different noise reduction structures. The lower the sound pressure level, the better the sound insulation effect. A bar chart of the sound insulation performance of the two noise reduction structures is obtained (see [link]). Figure 4 ).from Figure 4 It can be seen that, regardless of whether it is low-frequency noise, mid-frequency noise, or high-frequency noise, the sound insulation effect of the 120 noise reduction layer is better than that of a single layer of sound-absorbing cotton.

[0036] The compressor 100 of this utility model embodiment has a noise reduction layer 120 covering the compressor body 110. The noise reduction layer 120 includes a sound insulation composite layer 121 and a sound absorption composite layer 122 stacked together. The sound absorption composite layer 122 is disposed on the side of the sound insulation composite layer 121 close to the compressor body 110. The sound insulation composite layer 121 includes a first protective layer 1211, a filling sound insulation layer 1212 and a second protective layer 1213 stacked together in sequence. The filling sound insulation layer 1212 is used to isolate the noise generated by the compressor body 110. The sound absorption composite layer 122 includes a first reinforcing layer 1221, a fiber sound absorption layer 1222 and a second reinforcing layer 1223 stacked together in sequence. The fiber sound absorption layer 1222 is made of sound-absorbing cotton material with at least two components and is used to absorb the noise generated by the compressor body 110. Compared with the prior art, the compressor 100 provided by this utility model adopts a first protective layer 1211, a sound insulation layer 1212 and a second protective layer 1213 stacked together, as well as a first reinforcing layer 1221, a fiber sound-absorbing layer 1222 and a second reinforcing layer 1223 stacked together. Therefore, it can effectively reduce or even eliminate the noise emitted by the compressor body 110, with good noise reduction effect and improved user experience.

[0037] Second Embodiment Please refer to Figure 5 This utility model embodiment provides a compressor 100. Compared with the first embodiment, the difference in this embodiment lies in the different stacking methods of the sound insulation composite layer 121 and the sound absorption composite layer 122.

[0038] In this embodiment, the three-layer structure of the sound insulation composite layer 121 is separated. The first protective layer 1211 is disposed on one side of the sound absorption composite layer 122, and the filling sound insulation layer 1212 and the second protective layer 1213 are disposed on the other side of the sound absorption composite layer 122. Specifically, the soft covering layer 123, the first protective layer 1211, the first reinforcing layer 1221, the fiber sound absorption layer 1222, the second reinforcing layer 1223, the second protective layer 1213, and the filling sound insulation layer 1212 are arranged sequentially so that the entire noise reduction layer 120 forms a symmetrical structure with the fiber sound absorption layer 1222 as the middle layer. The soft covering layer 123 and the filling sound insulation layer 1212 can be directly attached to the outside of the compressor body 110, which is convenient for production and installation, has a good error prevention effect, and can effectively reduce or even eliminate the noise emitted by the compressor body 110, resulting in a good noise reduction effect.

[0039] The beneficial effects of the compressor 100 described in this embodiment are the same as those in the first embodiment, and will not be repeated here.

[0040] Third Embodiment This utility model provides an air conditioner (not shown) for regulating indoor temperature. The air conditioner includes an indoor unit and an outdoor unit. The basic structure, principle, and technical effects of the compressor 100 are the same as in the first embodiment. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in the first embodiment.

[0041] In this embodiment, the outdoor unit of the air conditioner includes a housing and a compressor 100, with the compressor 100 installed inside the housing. The compressor 100 includes a noise reduction layer 120 and a compressor body 110. The noise reduction layer 120 covers the compressor body 110 and is in direct contact with the housing. The noise reduction layer 120 is used to effectively reduce or even eliminate the noise emitted by the compressor body 110. The noise reduction layer 120 is also used to prevent the compressor body 110 from making abnormal noises due to its own vibration colliding with the housing during operation.

[0042] The beneficial effects of the air conditioner described in this embodiment are the same as those in the first embodiment, and will not be repeated here.

[0043] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A compressor characterized by, The system includes a compressor body (110) and a noise reduction layer (120). The noise reduction layer (120) covers the compressor body (110). The noise reduction layer (120) includes a sound insulation composite layer (121) and a sound absorption composite layer (122) stacked together. The sound absorption composite layer (122) is disposed on the side of the sound insulation composite layer (121) close to the compressor body (110). The sound insulation composite layer (121) includes a first protective layer (1211) and a filler layer stacked together in sequence. The sound insulation layer (1212) and the second protective layer (1213) are provided. The sound insulation layer (1212) is used to isolate the noise generated by the compressor body (110). The sound-absorbing composite layer (122) includes a first reinforcing layer (1221), a fiber sound-absorbing layer (1222), and a second reinforcing layer (1223) stacked in sequence. The fiber sound-absorbing layer (1222) is made of sound-absorbing cotton material with at least two components. The fiber sound-absorbing layer (1222) is used to absorb the noise generated by the compressor body (110).

2. The compressor of claim 1, wherein, Both the first protective layer (1211) and the second protective layer (1213) are made of polyvinyl chloride. And / or, the filling sound insulation layer (1212) is made of felt.

3. The compressor of claim 1, wherein, The thickness of both the first protective layer (1211) and the second protective layer (1213) is 0.5mm-2mm; And / or, the thickness of the filling sound insulation layer (1212) is 4mm-6mm.

4. The compressor of claim 1, wherein, Both the first reinforcing layer (1221) and the second reinforcing layer (1223) are made of non-woven fabric. And / or, the fiber sound-absorbing layer (1222) is made of a two-component sound-absorbing cotton material, which includes interleaved polypropylene microfibers and polyester monofibers.

5. The compressor of claim 1, wherein, The thickness of both the first reinforcing layer (1221) and the second reinforcing layer (1223) is 0.1mm-1mm; And / or, the thickness of the fiber sound-absorbing layer (1222) is 4mm-6mm.

6. The compressor of claim 1, wherein, The first protective layer (1211), the sound insulation filling layer (1212), and the second protective layer (1213) are bonded together with water-based adhesive; And / or, the first reinforcing layer (1221), the fiber sound-absorbing layer (1222) and the second reinforcing layer (1223) are bonded together by hot melt adhesive.

7. The compressor of claim 1, wherein The noise reduction layer (120) further includes a soft covering layer (123), which is stacked on the side of the sound insulation composite layer (121) away from the sound absorption composite layer (122). The soft covering layer (123) is used to contact the housing of the outdoor unit of the air conditioner.

8. The compressor of claim 7, wherein, The soft covering layer (123) is made of felt and the thickness of the soft covering layer (123) is 4mm-6mm.

9. The compressor according to claim 7, characterized in that, One end of the soft covering layer (123) is provided with a sub-hook and hook, and the other end is provided with a female hook and hook, and the sub-hook and hook are bonded together.

10. An air conditioner characterized by comprising: Includes the compressor as described in any one of claims 1 to 9.

Images