CN205860531U - Refrigerating plant - Google Patents

Abstract

The utility model discloses a refrigeration device, comprising: a device shell, a sound-proof cover, a compressor and a first shock-absorbing foot pad, the sound-proof cover is arranged in the device shell, a placement cavity is defined in the sound-proof cover, and a tube is arranged on the sound-proof cover. mouth. The compressor is arranged in the placement cavity, and the refrigerant pipeline of the compressor passes through the soundproof cover through the nozzle. The first shock-absorbing foot pad is connected between the soundproof cover and the device shell. According to the refrigeration device of the utility model, the noise and vibration emitted by the compressor are significantly reduced, so that the operation noise of the refrigeration device is low, the vibration is small, and the use is comfortable. The effect is remarkable when the scheme is applied to air-conditioning systems, especially household air-conditioning systems with strict requirements on noise.

Description

refrigeration unit

technical field

The utility model relates to the field of refrigeration equipment, in particular to a refrigeration device.

Background technique

In a common air-conditioning system, during refrigeration operation, the compressor first pressurizes the refrigerant, and then drives the high-pressure refrigerant through the compressor pipeline into the condenser. After the refrigerant releases heat and liquefies in the condenser, it flows into the evaporator Evaporation absorbs heat, thereby exerting the cooling effect. Then the refrigerant returns to the compressor through the compressor pipeline to complete a refrigeration cycle.

In the air conditioning system, the compressor is the main source of noise and vibration, especially for integral air conditioners, such as window air conditioners, mobile air conditioners and dehumidifiers.

In this type of integrated air conditioner, the noise of the compressor during operation can often be emitted through the support structure. Obviously, the existing support structure of the air conditioner cannot exert an obvious noise reduction effect, and sometimes even amplifies the noise of the compressor due to resonance . In order to achieve the purpose of vibration reduction, the compressor is often connected to the support structure through the compressor foot pad to form a single-stage vibration isolation system.

However, due to the large vibration of the compressor during operation, even if the single-stage vibration isolation system is generally used in the existing air conditioning system, the vibration of the compressor will still be transmitted, causing abnormal vibration of the support structure, and even abnormal noise of the support structure. All in all, the control of compressor noise and vibration in existing air-conditioning systems has been difficult to meet the market demand for low-noise air conditioners.

Utility model content

This application aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model aims to provide a refrigeration device, which can effectively reduce vibration and noise.

According to the refrigeration device of the present utility model, it comprises: a device casing; a sound insulation cover, the sound insulation cover is arranged in the device casing, a placement cavity is defined in the sound insulation cover, and a nozzle is provided on the sound insulation cover; a compressor , the compressor is arranged in the placement cavity, and the refrigerant pipeline of the compressor passes through the sound insulation cover through the nozzle; the first shock-absorbing foot pad, the first shock-absorbing foot pad is connected to the Between the soundproof cover and the device shell.

According to the refrigeration device of the embodiment of the utility model, the compressor is covered by the sound insulation cover, and the sound insulation cover is connected to the device shell through the first shock absorbing foot pad, so as to realize sound insulation and vibration isolation for the compressor, thereby significantly reducing the noise emitted by the compressor And vibration, so that the refrigeration device operates with low noise, small vibration and comfortable use. The effect is remarkable when the scheme is applied to air-conditioning systems, especially household air-conditioning systems with strict requirements on noise.

In some embodiments, the refrigeration device further includes a second shock-absorbing foot pad, and the second shock-absorbing foot pad is connected between the sound insulation enclosure and the compressor. Therefore, the setting of the two-stage shock-absorbing foot pad can exert a good vibration isolation effect, reduce the vibration transmission rate from the compressor to the sound insulation cover and then to the device shell, and suppress the vibration and noise radiation of the device shell.

Specifically, the sound insulation cover is a piece of rigid material. So as to achieve a good sound insulation effect.

Further, at least part of the inner wall surface of the placement cavity is provided with a sound-absorbing material layer. Thereby, the sound wave energy can be absorbed, the sound wave is gradually weakened, and the noise is reduced.

Optionally, the sound-absorbing material layer is a porous fiber layer.

Optionally, a seal is provided between the refrigerant pipeline and the inner peripheral wall of the nozzle. Therefore, it is possible to prevent sound waves from leaking from the nozzle into the external environment, thereby further improving the noise reduction effect.

Optionally, a sealing layer is provided on the inner peripheral wall of the nozzle and/or the outer surface of the refrigerant pipeline. Therefore, it is possible to prevent sound waves from leaking from the nozzle into the external environment, thereby further improving the noise reduction effect.

In some embodiments, the refrigerating device further includes a partition, the partition is arranged in the placement chamber to divide the placement chamber into a plurality of sub-chambers, and the compressor is arranged in one of the sub-chambers . In this way, the acoustic wave energy can be further consumed by utilizing the extra sub-cavities.

In some embodiments, the sound insulation enclosure is provided with a heat exhaust fan for preventing the compressor from overheating. In this way, the compressor can be guaranteed to work at a suitable ambient temperature, and the working reliability of the compressor can be improved.

In some embodiments, the sound insulation enclosure is provided with a radiator for preventing the compressor from overheating. In this way, the compressor can be guaranteed to work at a suitable ambient temperature, and the working reliability of the compressor can be improved.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic diagram of a refrigeration device according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of a refrigeration device according to another embodiment of the present invention;

Fig. 3 is a schematic diagram of a partial structure of a refrigeration device according to an embodiment of the present invention.

Reference signs:

refrigeration unit 100,

Device shell 1,

Soundproof cover 2, placement cavity 21, sub-cavity 211, nozzle 22, sound-absorbing material layer 23,

Compressor 3, refrigerant pipeline 31,

The first shock-absorbing foot pad 4, the second shock-absorbing foot pad 5,

Partition plate 6 , through hole 61 , sealing member 7 .

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

The following describes a refrigeration device 100 according to an embodiment of the present invention with reference to FIGS. 1-3 . The refrigeration device 100 can be an air conditioner, a refrigerator, or an ice maker, and is not specifically limited here.

According to the refrigerating device 100 of the embodiment of the utility model, as shown in Figure 1, comprising: a device shell 1, a soundproof cover 2, a compressor 3 and a first shock-absorbing pad 4, the soundproof cover 2 is located in the device shell 1, and the sound insulation A placement cavity 21 is defined inside the cover 2 , and a nozzle 22 is provided on the soundproof cover 2 . The compressor 3 is arranged in the placement cavity 21 , the refrigerant pipeline 31 of the compressor 3 passes through the soundproof cover 2 through the nozzle 22 , and the first shock-absorbing pad 4 is connected between the soundproof cover 2 and the device shell 1 .

Here, the soundproof cover 2 can be connected to the bottom plate of the device housing 1 through the first shock-absorbing foot pad 4 , and the sound-proof cover 2 can also be connected to the supporting structure on the bottom plate of the device shell 1 through the first shock-absorbing foot pad 4 .

That is to say, in the refrigeration device 100 , the compressor 3 is covered with a sound insulation cover 2 , and the compressor 3 is isolated from other structures of the device through the sound insulation cover 2 . At the same time, the sound-proof cover 2 is connected to the device shell 1 through the first shock-absorbing foot pad 4 , which means that the sound-proof cover 2 is separated from other structures of the device through the first shock-absorbing foot pad 4 . Such arrangement can isolate the noise and vibration of the compressor 3 from other structures of the device.

In terms of noise control, the compressor 3 is the main noise source in the refrigeration device 100, and the compressor 3 will emit significant sound wave excitation to the surrounding air. After the sound wave is transmitted to the soundproof enclosure 2, it usually excites the vibration of the soundproof enclosure 2 itself, and transmits this vibration to the air environment outside the soundproof enclosure 2. It should be noted that the noise generated by the sound wave excitation vibration of the sound insulation cover 2 is connected to the noise directly transmitted to the outside by the compressor 3, and the sound wave excitation vibration of the sound insulation cover 2 is much smaller than that of ordinary materials, so the sound insulation cover 2 is covered on the compressor 3, which can greatly reduce the sound waves transmitted from the compressor 3 to the external environment.

In terms of vibration control, the compressor 3 is also the main vibration source of the refrigeration device 100 . When the compressor 3 is arranged in the sound-proof cover 2, the compressor 3 will transmit vibration outward through the sound-proof cover 2. It can be understood that a part of the first shock-absorbing foot pad 4 is equivalent to a spring, and the first shock-absorbing foot pad 4 is arranged between the soundproof cover 2 and the device shell 1. The first shock-absorbing foot pad 4 has certain elasticity and can The soundproof enclosure 2 is allowed to vibrate within a small range to consume the vibration energy generated during the operation of the compressor 3 .

In a specific example, as shown in FIG. 3 , the refrigerating device 100 is an air conditioner. Inside the air conditioner, the air conditioner compressor is covered with a soundproof cover 2, and the bottom of the soundproof cover 2 is provided with a first shock-absorbing pad 4. This example is an example of an effective application of the noise and vibration isolation method for the compressor 3 .

According to the refrigeration device 100 of the embodiment of the utility model, the compressor 3 is covered by the sound insulation cover 2, and the sound insulation cover 2 is connected to the device shell 1 through the first shock absorbing foot pad 4, so as to realize sound insulation and vibration isolation for the compressor 3, Therefore, the noise and vibration emitted by the compressor 3 are significantly reduced, so that the refrigeration device 100 operates with low noise and vibration, and is comfortable to use. When the scheme is applied to air-conditioning systems, especially in household air-conditioning systems that have strict requirements on noise, the effect is remarkable.

In some embodiments, as shown in FIG. 1 , the refrigeration device 100 further includes a second shock-absorbing foot pad 5 , and the second shock-absorbing foot pad 5 is connected between the soundproof enclosure 2 and the compressor 3 .

That is to say, in the soundproof enclosure 2 , the soundproof enclosure 2 is isolated from the compressor 3 by the second shock-absorbing pad 5 . In this way, because outside the soundproof cover 2, the soundproof cover 2 is also isolated from the device shell 1 by the first damping pad 4, therefore, this embodiment is equivalent to performing two-stage composite vibration isolation on the compressor 3.

It can be understood that, by rationally configuring the geometric shape and Shore hardness of the two-stage shock-absorbing foot pad, the vibration isolation effect of the two-stage shock-absorbing foot pad is much higher than that of the single-stage vibration isolation of the compressor foot pad in the prior art scheme. Therefore, the setting of the two-stage shock-absorbing foot pad can exert a good vibration isolation effect, reduce the vibration transmission rate from the compressor 3 to the soundproof cover 2 and then to the device shell 1, and suppress the vibration and noise radiation of the device shell 1.

In some embodiments, in order to prevent the noise of the compressor 3 from being emitted from the gap of the nozzle 22 , a seal 6 may be provided between the refrigerant pipeline 31 and the inner peripheral wall of the nozzle 22 . The nozzles 22 of the refrigerant pipes 31 entering and exiting the soundproof enclosure 2 are treated with the sealing member 6, which can prevent sound waves from leaking from these nozzles 22 into the external environment, thereby further improving the noise reduction effect.

Certainly, the solution of the embodiment of the present invention is not limited thereto. For example, a sealing layer may be provided on the inner peripheral wall of the nozzle 22 , and the sealing layer is wrapped on the refrigerant pipeline 31 . For another example, a sealing layer may be provided on the outer surface of the refrigerant pipeline 31 , and the sealing layer may be sealed in the nozzle 22 .

Since the refrigerant pipeline 31 vibrates violently when the compressor 3 is running, causing many potential safety hazards, the setting of the seal or sealing layer can not only prevent the sound wave from propagating outward along the nozzle 22, but also consume the vibration of the refrigerant pipeline 31 Energy, thereby suppressing the resonance amplitude, reducing the stress level in the refrigerant pipeline 31 during vibration, and avoiding pipeline rupture and refrigerant leakage.

In some embodiments, the sound insulation cover 2 is made of rigid material, so as to achieve good sound insulation effect.

It should be noted that if the soundproof cover 2 is made of rigid material, obviously, the higher the rigidity of the soundproof cover 2, the smaller the vibration excited by the sound wave, and the less sound wave will be transmitted to the external environment. Therefore, the soundproof cover 2 can be made of a material with high surface density and high rigidity.

In some specific embodiments, at least part of the inner wall surface of the placement cavity 21 is provided with a sound-absorbing material layer 23, thereby preventing the compressor 3 from having a "reverberation" effect in the closed cavity. Here, the "reverberation" effect refers to the effect that the sound wave is strengthened after the sound wave is repeatedly reflected and amplified in the soundproof enclosure. Therefore, the use of the sound-absorbing material layer 23 can absorb sound wave energy, gradually weaken the sound wave, and reduce noise.

Advantageously, as shown in FIG. 1 , sound-absorbing material layers 23 are provided on all inner walls of the cavity 21 , so as to absorb sound waves in all directions and reduce the noise propagating outward.

Optionally, the sound-absorbing material layer 23 is a porous fiber layer. Certainly, the sound-absorbing material layer 23 can also be made of other materials, for example, the sound-absorbing material layer 23 can be sound-absorbing cotton or the like.

The soundproof cover 2 can also adopt other structures. For example, in a specific example, the soundproof cover 2 can include a three-layer structure. The shell layer is a metal layer or an aluminum-plastic layer.

For another example, in another specific example, the sound insulation cover 2 includes a rubber layer and a sponge layer, and a double-layer sound insulation layer is used to achieve multi-band vibration and noise reduction effects.

In some embodiments, as shown in FIG. 2 , the refrigerating device 100 further includes a partition 6, and the partition 6 is arranged in the placement chamber 21 to divide the placement chamber 21 into a plurality of sub-chambers 211, and the compressor 3 is arranged in one of them. Inside the sub-chamber 211. In this way, the acoustic wave energy can be further consumed by utilizing the extra sub-cavities 211 .

For example, the partition 6 can form a ring shape, and the partition 6 is arranged around the compressor 3 in the circumferential direction, and the partition 6 is spaced apart from the compressor 3 . In this way, the compressor 3 is equivalent to a double-layer isolation provided in the peripheral direction.

Optionally, the partition 6 is provided with through holes 61 for communicating with the plurality of sub-cavities 211 .

It can be understood that, according to the principle that when the pipeline suddenly expands, shrinks or bypasses the resonant cavity, part of the sound waves propagating along the pipeline reflect and interfere at the sudden change in the section of the pipeline, so that the energy of the sound wave decreases, so that the communication through the through hole 61 The sub-cavity 211 can be regarded as an expansion cavity, and the noise is reduced when the sound wave is transmitted from the sub-cavity 211 where the compressor 3 is located to the adjacent sub-cavity 211 .

Optionally, sound-absorbing material (not shown) may be filled in the sub-cavity 211 where the compressor 3 is not installed, so as to further absorb sound waves and reduce noise.

In some embodiments, the soundproof cover 2 may be provided with a heat exhaust fan (not shown) or a radiator (not shown) for preventing the compressor 3 from overheating, so as to ensure that the compressor 3 is at a suitable ambient temperature. Work, improve the reliability of the compressor.

For example, a cover opening (not shown) can be set on the soundproof cover 2, and a heat exhaust fan is installed on the opening. For another example, the pipeline through which the low-temperature refrigerant flows through the refrigeration device 100 can be connected to the sound insulation cover 2 , and the pipeline can form a radiator. Of course, the radiator can also adopt other structures, which are not specifically limited here.

For ease of understanding, the internal structure of a refrigeration device 100 in a specific example is described below with the structure shown in FIG. 1 .

In this example, the refrigerating device 100 is an air conditioner, and the compressor 3 of the air conditioner is installed in the soundproof cover 2 through the second shock-absorbing pad 5 (equivalent to a first-level vibration isolation), and the two refrigerant pipes attached to the compressor 3 31 protrudes through the nozzle 22 on the soundproof cover 2, the nozzle 22 is covered with a sealing member 7, and the inner wall of the soundproof cover 2 is provided with a sound-absorbing material layer 23. In addition, the soundproof cover 2 passes through the first shock-absorbing foot pad 5 (equivalent to In the secondary vibration isolation) connected with the external structure of the air conditioner.

The main principle of this example is to use the rigid wall to attenuate the sound wave to achieve noise reduction, and to use the two-stage composite vibration isolation system to achieve vibration isolation. The advantages of this example solution are described below in terms of noise control and vibration control.

In this example, in terms of noise control, the sound insulation cover 2 is made of materials with high surface density and rigidity, which can reduce the vibration of the sound insulation cover 2 excited by sound waves, so that less sound waves are transmitted to the external environment. The sealing member 7 at the mouth 22 handles the pipe mouth 22 where the refrigerant pipeline 31 enters and exits the sound insulation cover 2, so as to prevent sound waves from leaking from these pipe mouths 22 into the external environment. In addition, the sound-absorbing material layer 23 is covered inside the sound-proof cover 2, which can prevent the compressor 3 from "reverberation" in the closed cavity.

In terms of vibration control, since the compressor 3 is connected to the soundproof cover 2 through the first-stage shock-absorbing pad, and the sound-proof cover 2 is connected to the external structure of the air conditioner through the second-stage Composite vibration isolation, by rationally configuring the geometry and Shore hardness of the shock-absorbing pad, its vibration isolation effect will be greatly improved.

All in all, the air conditioner compressor noise and vibration isolation scheme given in this example can greatly attenuate the noise emitted by compressor 3 on the one hand, and can also significantly isolate the vibration generated by compressor 3 on the other hand, thereby significantly improving the noise of the air conditioner and vibration performance, especially in packaged air conditioners.

It should be noted that the structure and working principle of the compressor 3 and the structure of the shock-absorbing foot pad are well known to those skilled in the art. In addition, the refrigerating device 100 also includes components such as an evaporator and a condenser. The structures of these components , working principle and the connection mode with the compressor 3 are also well known in the prior art, and will not be repeated here.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, unless otherwise clearly stipulated and limited, the terms "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, descriptions with reference to the terms "embodiment", "example" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention middle. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A refrigeration device, characterized in that, comprising: device housing; A sound-proof cover, the sound-proof cover is arranged in the housing of the device, a placement cavity is defined in the sound-proof cover, and a nozzle is provided on the sound-proof cover; A compressor, the compressor is arranged in the placement cavity, and the refrigerant pipeline of the compressor passes through the sound insulation cover through the nozzle; A first shock-absorbing foot pad, the first shock-absorbing foot pad is connected between the sound insulation cover and the device shell. 2 . The refrigerating device according to claim 1 , further comprising a second shock-absorbing foot pad connected between the sound insulation cover and the compressor. 3 . 3. The refrigeration device according to claim 1, wherein the sound insulation cover is a rigid material. 4. The refrigerating device according to claim 1, wherein at least a part of the inner wall surface of the placement cavity is provided with a sound-absorbing material layer. 5. The refrigeration device according to claim 4, wherein the sound-absorbing material layer is a porous fiber layer. 6 . The refrigeration device according to claim 1 , wherein a seal is provided between the refrigerant pipeline and the inner peripheral wall of the nozzle. 7 . 7. The refrigeration device according to claim 1, characterized in that a sealing layer is provided on the inner peripheral wall of the nozzle and/or the outer surface of the refrigerant pipeline. 8. The refrigerating device according to any one of claims 1-7, further comprising a partition, the partition is arranged in the placement chamber to divide the placement chamber into a plurality of sub-chambers , the compressor is arranged in one of the sub-chambers. 9. The refrigerating device according to any one of claims 1-7, wherein a heat exhaust fan for preventing the compressor from overheating is provided on the sound insulation cover. 10. The refrigerating device according to any one of claims 1-7, wherein a radiator for preventing the compressor from overheating is provided on the sound insulation cover.