CN218495466U - Refrigeration device - Google Patents

Abstract

The application relates to the technical field of household equipment, discloses a refrigeration plant, including the storing room with set up in the compression cabin of storing room lower part, be provided with the compressor in the compressor cabin, still include: the liquid collector is arranged at the lower part of the storage chamber and used for collecting the defrosting water of the storage chamber, a liquid outlet is formed in the lower end of the liquid collector, a liquid outlet valve is connected to one side of the liquid outlet, and the control part is configured to control the opening degree of the liquid outlet valve according to the noise value of the compressor so that the defrosting water can cool the compressor. Therefore, the refrigeration equipment provided by the embodiment of the disclosure obtains the noise value of the compressor through the control part, and then controls the opening of the liquid outlet valve according to different noise values, so that the low-temperature defrosting water flows out of the liquid outlet valve to the compression cabin, the low-temperature defrosting water is immediately gasified after entering the high-temperature compression cabin, and the compressor can be cooled by the heat absorption of the gasification of the defrosting water.

Description

Refrigeration device

Technical Field

The present application relates to the field of household appliance technology, for example to a refrigeration device.

Background

The refrigeration equipment is a household storage device, has a large storage space, and can be used for placing food, drinks and other articles to achieve the effect of freshness preservation. The compressor, which is a machine that can raise low-pressure gas to high-pressure gas, is the heart of a refrigeration system. The compressor generally needs to be continuously operated to maintain the refrigeration effect of the refrigeration equipment, however, the continuous operation of the compressor causes the compressor to generate heat, so that the temperature of the compressor needs to be reduced.

In the related art, low-temperature defrosting water is collected inside a refrigeration device, and a plurality of pipelines are arranged around a compressor, so that the low-temperature defrosting water flows in the pipelines to take away heat near the pipelines, and further, the temperature of the compressor is reduced.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

in the correlation technique, the arrangement of a plurality of pipelines has higher cost, and the pipelines are easy to leak the inside defrosting water, so that the defrosting water enters the compressor, the compressor is damaged, and the service life of the refrigeration equipment is influenced.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended to be a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a refrigeration plant, sets up the liquid trap through the lower part at the storing room, can collect indoor defrosting water between the storing, and the noise value of compressor is acquireed to the rethread control part, and then goes out the aperture of liquid valve according to the noise value control of difference for low temperature defrosting water flows to the compression cabin by going out the liquid valve, for the compressor cooling.

In some embodiments, the refrigeration equipment comprises a storage compartment and a compressor compartment arranged at the lower part of the storage compartment, wherein a compressor is arranged in the compressor compartment, and the refrigeration equipment further comprises: the liquid collector, set up in the lower part of room between the storing is used for collecting the defrosting water of room between the storing, wherein, the lower extreme of liquid collector is provided with the liquid outlet, goes out the liquid valve, connect in one side of liquid outlet, the control division is configured as the basis the noise value control of compressor goes out the aperture of liquid valve to make defrosting water do the compressor cooling.

Optionally, the refrigeration plant further comprises a spray head connected to the liquid outlet.

Optionally, the spray head is an atomizer.

Optionally, the refrigeration equipment further includes an evaporation pan disposed at a lower portion of the spray head, wherein the evaporation pan is provided with a top opening, and an opening area is larger than a spray area of the spray head.

Optionally, the liquid trap comprises: the liquid collecting pipe is arranged at the lower part of the storage chamber; and the combination of (a) and (b),

and the liquid collecting cavity is arranged at the lower part of the liquid collecting pipe and is arranged in the compression cabin, wherein the spray head is arranged at the bottom of the liquid collecting cavity.

Optionally, the compressor compartment is provided with an air inlet and an air outlet, wherein the air inlet side is provided with a fan, the compressor is arranged on the air outlet side, and the liquid collecting cavity is arranged between the fan and the compressor.

Optionally, the refrigeration equipment further comprises a sound sensor disposed in the compressor compartment for acquiring a noise value of the compressor.

Optionally, the sound sensor is disposed at a lower portion of the liquid collecting chamber and near a side of the compressor.

Optionally, the control part is configured to control the liquid outlet valve to open in response to the noise value being greater than or equal to a first noise threshold; and controlling the liquid outlet valve to be closed in response to the noise value being smaller than a first noise threshold value.

Optionally, the control part is configured to control the liquid outlet flow rate of the liquid outlet valve to be a first preset value in response to the noise value being greater than or equal to a first noise threshold value and smaller than a second noise threshold value; controlling the liquid outlet flow rate of the liquid outlet valve to be a second preset value when the noise value is larger than or equal to a second noise threshold value; and the second noise threshold is greater than the first noise threshold, and the second preset value is greater than the first preset value.

The refrigeration equipment provided by the embodiment of the disclosure can realize the following technical effects:

the embodiment of the disclosure provides a refrigeration plant, lower part through at the storing room sets up the liquid trap, can collect the indoor defrosting water of storing room, and the noise value of compressor is acquireed to the rethread control part, and then goes out the aperture of liquid valve according to the noise value control of difference for low temperature defrosting water is by going out the liquid valve outflow to the compression cabin, and low temperature defrosting water can gasify immediately after getting into the compression cabin of high temperature, and the gasification heat absorption of defrosting water can be for the compressor cooling.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a refrigeration apparatus provided in an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of another refrigeration device provided by the embodiment of the present disclosure;

FIG. 3 is a schematic view of a liquid trap in a refrigeration unit according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of an acoustic sensor in a refrigeration apparatus according to an embodiment of the present disclosure.

Reference numerals:

1-a storage compartment; 11-a guide ramp;

2-a compressor cabin; 21-a compressor; 22-air inlet; 23-air outlet; 24-a fan;

3-a liquid collector; 31-a liquid outlet; 32-a liquid collecting pipe; 33-a liquid collection cavity;

4-a liquid outlet valve;

5-a control section;

6-a spray head;

7-evaporating dish;

8-sound sensor.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meanings of these terms in the embodiments of the present disclosure may be understood as specific cases by those of ordinary skill in the art.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more, unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

The refrigerating equipment is mainly used for refrigerating food, various goods and air in cabins in summer. It is mainly composed of compressor, expansion valve, evaporator, condenser and accessories, and pipeline. According to the working principle, the refrigeration device can be divided into a compression refrigeration device, an absorption refrigeration device, a steam jet refrigeration device, a heat pump refrigeration device, an electric heating refrigeration device and the like. The most common application for domestic refrigeration appliances is compression refrigeration appliances. The heat of the object and its surroundings is removed by the working cycle of the device, causing and maintaining a certain low temperature state. The storage space is large, and the food, the beverage and other articles can be placed, so that the effect of freshness preservation can be achieved. Meanwhile, the refrigeration equipment is usually provided with a plurality of storage drawers to realize the classified placement of the internal articles, and a partition plate is usually required to be arranged between the storage drawers to separate the space and prevent the odor from mixing with the food inside the storage drawers.

The compressor is a driven fluid machine for lifting low-pressure gas into high-pressure gas, and is a heart of a refrigeration apparatus. The refrigerating cycle is powered by sucking low-temperature and low-pressure refrigerant gas from the air suction pipe, driving the piston to compress the refrigerant gas through the operation of the motor, and discharging high-temperature and high-pressure refrigerant gas to the exhaust pipe. Thus realizing the refrigeration cycle of compression, condensation (heat release), expansion and evaporation (heat absorption). The compressors are classified into piston compressors, screw compressors, centrifugal compressors, linear compressors, and the like. The compressor generally needs to be continuously operated to maintain the refrigeration effect of the refrigeration equipment, however, the continuous operation of the compressor causes the compressor to generate heat, so that the temperature of the compressor needs to be reduced.

In the related art, the low-temperature defrost water is collected inside the refrigeration apparatus, and a plurality of pipelines are disposed around the compressor, so that the low-temperature defrost water flows in the pipelines to take away heat near the pipelines, thereby cooling the compressor.

The embodiment of the present disclosure provides a refrigeration equipment, lower part through at storing room 1 sets up liquid trap 3, can collect the defrosting water in storing room 1, rethread control part 5 acquires the noise value of compressor 21, and then control the aperture of liquid valve 4 according to the noise value of difference, make low temperature defrosting water flow to compression cabin 2 by liquid valve 4, low temperature defrosting water can gasify immediately after getting into high temperature compression cabin 2, the gasification heat absorption of defrosting water can be for the compressor 21 cooling.

Referring to fig. 1, the embodiment of the present disclosure provides a refrigeration apparatus, which includes a storage compartment 1 and a compressor compartment 2 disposed at a lower portion of the storage compartment, and a compressor 21 is disposed in the compressor compartment 2.

Wherein, the storage compartment 1 is used for placing articles.

Optionally, the storage compartment 1 is provided with a plurality of storage drawers to realize classified arrangement of the articles inside, and a partition plate is usually required to be arranged between the storage drawers to divide the space and prevent the taint of the food inside the storage drawers.

In some embodiments, the disclosed embodiments provide that the refrigeration device further comprises an accumulator 3.

Optionally, a liquid trap 3 is disposed at a lower portion of the storage compartment 1 for collecting the defrosting water of the storage compartment 1, wherein a liquid outlet 31 is disposed at a lower end of the liquid trap 3.

Because the internal temperature of the storage chamber 1 of the refrigeration equipment is lower, when the refrigeration equipment is opened for a long time, high-temperature gas outside the refrigeration equipment enters the storage chamber 1, so that low-temperature gas inside the storage chamber 1 is melted under a high-temperature environment, and defrosting water is formed.

It can be understood that the liquid trap 3 is used to collect the defrost water, preventing the defrost water from flowing at the bottom of the storage compartment 1 to form ice, which affects the use experience of the refrigeration device.

Alternatively, referring to fig. 3, the drip catcher 3 comprises a drip tube 32 and a drip chamber 33.

The liquid collecting pipe 32 is disposed at the lower portion of the storage chamber 1, and is used for transferring the defrosting water in the storage chamber 1 to the liquid collecting cavity 33.

And a liquid collecting chamber 33 provided below the liquid collecting pipe 32 and in the compressor compartment 2, for collecting the low-temperature defrosted water to cool the compressor compartment 2.

Optionally, referring to fig. 2, the storage compartment 1 further comprises a guide ramp 11.

The guide slope 11 is located at the junction of the storage compartment 1 and the liquid collecting tube 32.

It can be understood that the defrosting water at the bottom of the storage chamber 1 can flow into the liquid collecting pipe through the guide inclined plane 11, and water accumulation at the bottom of the storage chamber is avoided.

Referring to fig. 1, the embodiment of the present disclosure provides that the refrigeration apparatus further includes a liquid outlet valve 4.

Optionally, a liquid outlet valve 4 is connected to one side of the liquid outlet 31 for controlling the opening degree of the liquid trap 3.

It can be understood that, when the compressor 21 does not need to be cooled, the opening degree of the liquid outlet valve 4 is zero; when the temperature of the compressor 21 is lower, the opening degree of the liquid outlet valve 4 is smaller; when the temperature of the compressor 21 is higher, the opening degree of the liquid outlet valve 4 is larger.

So set up, go out liquid valve 4 through the adjustment and can realize the processing of cooling down to the compressor of different temperatures.

Referring to fig. 1, the embodiment of the present disclosure provides that the refrigeration apparatus further includes a control portion 5.

Optionally, the control part 5 is configured to control the opening degree of the liquid outlet valve 4 according to the noise value of the compressor 21, so that the defrosting water cools the compressor 21.

It can be understood that, the larger the noise value of the compressor 21 is, the higher the refrigeration frequency of the compressor 21 is, and the higher the temperature of the machine body is, so that the liquid outlet valve 4 needs to be opened by a larger opening degree, so that more defrosting water flows into the compressor compartment 2 to cool the compressor 21.

On the contrary, the smaller the noise value of the compressor 21 is, the lower the refrigeration frequency of the compressor 21 is, and the lower the temperature of the machine body is, so that the opening degree of the liquid outlet valve 4 needs to be smaller, and less defrosting water needs to flow into the compressor cabin 2 to cool the compressor 21.

Alternatively, referring to fig. 4, the control portion 5 may include a sound sensor 8, and acquire the noise value of the compressor 21 through the sound sensor 8.

Optionally, a sound sensor 8 is disposed in the compressor compartment 2 for acquiring a noise value of the compressor 21.

Alternatively, the sound sensor 8 is disposed at a lower portion of the liquid collecting chamber 33 on a side close to the compressor 21.

The arrangement is such that the sound sensor 8 is located closer to the compressor 21, so that the sound sensor 8 can receive the audio signal.

Optionally, the sound sensor 8 and the liquid outlet valve 4 are in signal connection with the control part 5.

Optionally, the sound sensor 8 obtains a noise value of the compressor 21, converts the noise value into a digital signal, and transmits the digital signal to the control unit 5, the control unit 5 analyzes the digital signal and calculates a corresponding opening value of the liquid outlet valve 4, and transmits the digital signal to the liquid outlet valve 4, and the liquid outlet valve 4 controls the flow rate of the defrosting water according to the received opening value.

In some embodiments, the control section 5 is configured to control the effluent valve 4 to open in response to the noise value being greater than or equal to the first noise threshold.

It can be understood that when the noise value is greater than or equal to the first noise threshold value, the compressor 21 operates at a high frequency, and the temperature of the compressor 21 is relatively high, so that the liquid outlet valve 4 needs to be controlled to be opened, and the defrosting water flows out to cool the compressor 21.

In some embodiments, the control section 5 is configured to control the effluent valve 4 to close in response to the noise value being less than the first noise threshold.

It will be appreciated that when the noise level is less than the first noise threshold, the compressor 21 operates at a low frequency and the temperature of the compressor 21 is low, so that the compressor 21 does not need to be cooled, i.e. the tapping valve 4 does not need to be opened.

Optionally, in response to the noise value being greater than or equal to the first noise threshold and smaller than the second noise threshold, controlling the liquid outlet flow rate of the liquid outlet valve 4 to be a first preset value; and controlling the liquid outlet flow rate of the liquid outlet valve 4 to be a second preset value in response to the noise value being greater than or equal to a second noise threshold value.

Optionally, the second noise threshold is greater than the first noise threshold, and the second preset value is greater than the first preset value.

It can be understood that, when the noise value received by the sound sensor 8 is greater than or equal to the first noise threshold and smaller than the second noise threshold, it indicates that the temperature of the compressor 21 is lower at this time, and at this time, the temperature of the compressor 21 can be reduced only by controlling the liquid outlet flow rate of the liquid outlet valve 4 to be the first preset value.

Similarly, when the noise value received by the sound sensor 8 is greater than or equal to the second noise threshold, it indicates that the temperature of the compressor 21 is higher, and at this time, the liquid outlet flow rate of the liquid outlet valve 4 needs to be controlled to be the second preset value, so as to reduce the temperature of the compressor 21.

Optionally, in response to the noise value being greater than or equal to the first noise threshold and smaller than the second noise threshold, controlling the liquid outlet flow rate of the liquid outlet valve 4 to be a first preset value; in response to the noise value being greater than or equal to the second noise threshold and less than the third noise threshold, controlling the liquid outlet flow rate of the liquid outlet valve 4 to be a second preset value; and controlling the liquid outlet flow rate of the liquid outlet valve 4 to be a third preset value in response to the noise value being greater than or equal to a third noise threshold value and smaller than a fourth noise threshold value.

Optionally, a plurality of noise thresholds may be set to control different opening degrees of the liquid outlet valve 4, which is not described herein again.

It can be understood that the more the number of the noise threshold values is set, the more the preset value of the outlet flow rate for controlling the outlet valve 4 is, the more accurate the temperature reduction of the compressor 21 is.

Alternatively, the signal connection between the sound sensor 8 and the liquid outlet valve 4 and the control part 5 may be a bluetooth signal connection or a wireless signal connection.

Alternatively, the sound sensor 8 incorporates a sound-sensitive electret condenser microphone, and sound waves vibrate an electret film in the microphone to cause a change in capacitance, thereby generating a minute voltage corresponding to the change, which is then converted into a digital signal to be received by the control section 5.

Referring to fig. 1, the refrigeration apparatus provided by the embodiment of the present disclosure further includes a spray head 6.

Optionally, the spray head 6 is disposed at the bottom of the liquid collection chamber 33.

By the arrangement, the defrosting water flowing out of the liquid collecting cavity 33 can be sprayed, the contact area between the defrosting water and high-temperature gas in the compression cabin 2 is increased, the defrosting water is convenient to gasify and absorb heat, and the gasifying efficiency of the defrosting water is improved.

Optionally, the spray head 6 is an atomizer.

The atomizer forms high-speed airflow through a fine nozzle, and the generated negative pressure drives the defrosting water to splash around under high-speed impact, so that liquid drops are changed into mist-shaped particles and are sprayed out of the liquid outlet and collection cavity 33.

Referring to fig. 2, the embodiment of the present disclosure provides that the refrigeration apparatus further includes an evaporation pan 7.

And the evaporating dish 7 is arranged at the lower part of the spray head.

The evaporating dish 7 is used for evaporating and concentrating solution or burning solid, and has a big mouth and a shallow bottom, and a round bottom and a flat bottom with handles. The most common is a porcelain evaporation dish, also made of glass, quartz, platinum, etc. The corrosion resistance is different according to different materials, and the materials are properly selected according to the properties of the solution and the solid. The specification is various, such as 60mm to 150mm in diameter. The main use is to evaporate a liquid, concentrate a solution or dry a solid substance.

Optionally, the evaporation dish 7 is provided with a top opening.

Optionally, the top opening of the evaporating dish 7 is arranged opposite to the spray head 6 for receiving the incompletely gasified defrosting water, and the incompletely gasified defrosting water is prevented from falling into the bottom of the compressor cabin 2, so as to keep the bottom of the compressor cabin dry.

Alternatively, the opening area is larger than the ejection area of the ejection head 6.

So set up, can guarantee that the defrosting water that does not totally gasify falls into in evaporating dish 7 to keep compressor cabin bottom dry.

In some embodiments, referring to fig. 2, embodiments of the present disclosure provide that the compressor compartment 2 of the refrigeration equipment is provided with an intake opening 22 and an outlet opening 23.

Optionally, both the intake vent 22 and the exhaust vent 23 are in communication with the external environment.

Optionally, the air inlet 22 side is provided with a fan 24, the compressor 21 is provided at the air outlet 23 side, and the liquid collecting chamber 33 is provided between the fan 24 and the compressor 21.

So set up, when compressor 21 temperature is higher, go out liquid valve 4 and open for the atomizing blowout of defrosting water, simultaneously, fan 24 opens, and wind flows into air outlet 23 by air intake 22, makes wind flow by collection liquid chamber 33 side direction compression cabin 2 side, can blow the air in the compression cabin 2 with the help of wind-force, further for the compressor 21 cooling.

The embodiment of the disclosure provides a cooling method of a refrigeration device, based on the refrigeration device of the above embodiment, by arranging the liquid collector 3 at the lower part of the storage chamber 1, defrosting water in the storage chamber 1 can be collected, then the noise value of the compressor 21 is obtained through the control part 5, and then the opening degree of the liquid outlet valve 4 is controlled according to different noise values, so that low-temperature defrosting water flows out of the liquid outlet valve 4 to the compression cabin 2, the low-temperature defrosting water immediately gasifies after entering the high-temperature compression cabin 2, and the gasification heat absorption of the defrosting water can cool the compressor 21.

The above description and the drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. Refrigeration equipment, characterized by, include storing compartment (1) and set up in the compressor compartment (2) of storing compartment lower part, be provided with compressor (21) in the compressor compartment (2), still include:

a liquid collector (3) which is arranged at the lower part of the storage chamber (1) and is used for collecting the defrosting water of the storage chamber (1), wherein the lower end of the liquid collector (3) is provided with a liquid outlet (31),

a liquid outlet valve (4) connected to one side of the liquid outlet (31),

a control part (5) configured to control the opening degree of the liquid outlet valve (4) according to the noise value of the compressor (21) so as to reduce the temperature of the compressor (21) by the defrosting water.

2. The refrigeration appliance according to claim 1, further comprising:

and the spray head (6) is connected to the liquid outlet (31).

3. The refrigeration appliance of claim 2,

the spray head (6) is an atomizer.

4. The refrigeration appliance of claim 2, further comprising:

an evaporation pan (7) arranged at the lower part of the spray head (6),

the evaporation dish (7) is provided with a top opening, and the opening area is larger than the spraying area of the spray head (6).

5. A cold appliance according to claim 2, wherein the accumulator (3) comprises:

a liquid collecting pipe (32) arranged at the lower part of the storage chamber (1); and (c) and (d),

a liquid collection chamber (33) provided at the lower part of the liquid collection pipe (32) and provided in the compressor compartment (2),

wherein the spray head (6) is arranged at the bottom of the liquid collection cavity (33).

6. The refrigeration appliance according to claim 5,

the compressor cabin (2) is provided with an air inlet (22) and an air outlet (23),

the air conditioner comprises an air inlet (22), a fan (24), a compressor (21), a liquid collecting cavity (33) and a liquid collecting cavity (23), wherein the fan (24) is arranged on the side of the air inlet (22), the compressor (21) is arranged on the side of the air outlet (23), and the liquid collecting cavity (33) is arranged between the fan (24) and the compressor (21).

7. The refrigeration appliance of claim 5 further comprising:

and the sound sensor (8) is arranged in the compressor cabin (2) and is used for acquiring the noise value of the compressor (21).

8. The refrigeration appliance of claim 7,

the sound sensor (8) is arranged at the lower part of the liquid collection cavity (33) and close to one side of the compressor (21).

9. A cold appliance according to claim 1, wherein the control (5) is configured to,

in response to the noise value being greater than or equal to a first noise threshold value, controlling the liquid outlet valve (4) to open;

and controlling the liquid outlet valve (4) to be closed in response to the noise value being smaller than a first noise threshold value.

10. A cold appliance according to claim 9, wherein the control (5) is configured to,

in response to the fact that the noise value is larger than or equal to a first noise threshold value and smaller than a second noise threshold value, controlling the liquid outlet flow rate of the liquid outlet valve (4) to be a first preset value;

in response to the noise value is larger than or equal to a second noise threshold value, the liquid outlet flow rate of the liquid outlet valve (4) is controlled to be a second preset value;

and the second noise threshold value is greater than the first noise threshold value, and the second preset value is greater than the first preset value.

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