Refrigerating and freezing device and control method thereof

Abstract

The invention relates to the technical field of refrigeration and storage, in particular to a refrigerating and freezing device and a control method thereof. The refrigerating and freezing device comprises a compressor bin, a silencing device is installed on the bin wall of the compressor bin, and heat dissipation through holes communicating the interior and the exterior of the compressor bin are formed in the silencing device. The aperture size of the heat dissipation through holes is adjustable; the control method comprises the steps that the temperature in the compressor bin is obtained; and / or obtaining user information within a preset range of the refrigerating and freezing device; and adjusting the aperture size of the heat dissipation through hole according to the temperature and / or user information. The aperture size of the heat dissipation through holes is automatically adjusted according to the temperature and / or user information in the compressor bin, automatic adjustment of the heat dissipation effect and the sound absorption effect is achieved, and heat dissipation of the compressor bin and noise reduction of the sound absorption device are fully considered. Therefore, the load of the compressor bin can be reduced, the service life of the frequency conversion box of the compressor can be prolonged, and meanwhile the A-level mute effect of the freezing and refrigerating device can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration storage, and in particular to a refrigeration and freezing device and a control method thereof. Background Art

[0002] At present, in order to solve the heat dissipation and noise reduction problems of refrigerators, a heat dissipation window is provided on the compressor compartment of the refrigerator, and a muffler is provided on the heat dissipation window. A heat dissipation through hole is provided on the side wall of the muffler, a muffler cavity is provided inside the muffler, and a sound absorption hole connected to the muffler cavity is provided on the peripheral wall of the heat dissipation through hole. The heat dissipation airflow in the compressor compartment flows through the heat dissipation through hole, and the muffler cavity resonates and reduces the noise mixed in the heat dissipation airflow.

[0003] However, the aperture of the through hole of the existing silencer is a fixed value. If the aperture of the heat dissipation through hole is too large, the noise reduction is small, and if the aperture is too small, the heat dissipation is small. This results in the silencer being unable to take into account both heat dissipation and noise reduction at the same time.

[0004] Noise mainly affects people's comfort, while heat dissipation has an adverse effect on the life of the compressor. How to make the silencer take into account both heat dissipation and noise reduction has become a key bottleneck issue restricting the development of the refrigerator field. Summary of the invention

[0005] In view of the above problems, the present invention is proposed to provide a refrigeration and freezing device and a control method thereof that overcome the above problems or at least partially solve the above problems, which can solve the problem that the silencer cannot take into account both heat dissipation and noise reduction at the same time, and achieve the purpose of automatically adjusting the heat dissipation effect and sound absorption effect of the silencer.

[0006] In one aspect, the present invention provides a control method for a refrigeration and freezing device, wherein the refrigeration and freezing device comprises a compressor compartment, a silencer is installed on the compartment wall of the compressor compartment, and a heat dissipation through hole is opened on the silencer to connect the inside and outside of the compressor compartment; the aperture size of the heat dissipation through hole is adjustable;

[0007] The control method comprises:

[0008] Obtaining the temperature in the compressor compartment; and / or

[0009] Acquiring user information within a preset range of the refrigeration and freezing device;

[0010] The aperture size of the heat dissipation through hole is adjusted according to the temperature and / or the user information.

[0011] Optionally, adjusting the aperture size of the heat dissipation through hole according to the temperature and / or the user information includes:

[0012] In response to the temperature being greater than the first temperature and the heat dissipation through hole not having a maximum aperture, the aperture of the heat dissipation through hole is enlarged.

[0013] Optionally, adjusting the aperture size of the heat dissipation through hole according to the temperature and / or the user information includes:

[0014] In response to the user information indicating that there is no one present and the heat dissipation through hole does not have a maximum aperture, the aperture of the heat dissipation through hole is enlarged.

[0015] Optionally, adjusting the aperture size of the heat dissipation through hole according to the temperature and / or the user information includes:

[0016] In response to the temperature being greater than the first temperature, the user information being that no one is present, and the heat dissipation through hole not having a maximum aperture, the aperture of the heat dissipation through hole is enlarged.

[0017] Optionally, the step of enlarging the diameter of the heat dissipation through hole further includes:

[0018] In response to the user information changing from "no one" to "someone", the aperture of the heat dissipation through hole is reduced.

[0019] Optionally, the step of enlarging the diameter of the heat dissipation through hole further includes:

[0020] In response to the temperature being less than or equal to a second temperature, the diameter of the heat dissipation through hole is reduced, and the second temperature is less than the first temperature.

[0021] Optionally, adjusting the aperture size of the heat dissipation through hole according to the temperature and / or the user information includes:

[0022] In response to the temperature being less than or equal to the first temperature and the heat dissipation via not having a maximum aperture, the current aperture of the heat dissipation via is not enlarged.

[0023] Optionally, adjusting the aperture size of the heat dissipation through hole according to the temperature and / or the user information includes:

[0024] In response to the temperature being greater than the first temperature, the user information is that there is a person, and the heat dissipation through hole is not of the maximum aperture, the current aperture of the heat dissipation through hole is not enlarged.

[0025] Optionally, at least one silencer cavity is provided inside the silencer device, at least one sound absorption hole is provided on the peripheral wall of the heat dissipation through hole, and each of the sound absorption holes is connected to at least one silencer cavity.

[0026] The present invention also provides a refrigeration and freezing device, comprising a controller, the controller comprising a memory and a processor, the memory storing a control program, the control program being used to implement any of the control methods described above when executed by the processor

[0027] In the control method of the refrigeration device of the present invention, the refrigeration device automatically adjusts the aperture size of the heat dissipation through hole according to the temperature in the compressor compartment and / or the user information within the preset range of the refrigeration device, thereby realizing the automatic adjustment of the heat dissipation effect and the sound absorption effect, and fully taking into account the heat dissipation of the compressor compartment and the noise reduction of the sound absorption device. Therefore, the present invention can not only reduce the load of the compressor compartment and extend the life of the compressor inverter box, but also ensure the A-level mute effect of the refrigeration device.

[0028] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0030] Figure 1 is a schematic flow chart of a control method for a refrigeration and freezing device according to one embodiment of the present invention;

[0031] Figure 2 is a schematic flow chart of a control method for a refrigeration and freezing device according to one embodiment of the present invention;

[0032] Figure 3 is a schematic flow chart of a control method for a refrigeration and freezing device according to one embodiment of the present invention;

[0033] Figure 4 is a schematic flow chart of a control method for a refrigeration and freezing device according to one embodiment of the present invention;

[0034] Figure 5 is a schematic flow chart of a control method for a refrigeration and freezing device according to one embodiment of the present invention;

[0035] Figure 6 is a schematic flow chart of a control method for a refrigeration and freezing device according to one embodiment of the present invention;

[0036] Figure 7 is a schematic structural diagram of a refrigeration and freezing device according to one embodiment of the present invention;

[0037] Figure 8 is a schematic structural diagram of a silencing device according to an embodiment of the present invention (the shielding device is not shown in the figure);

[0038] Fig. 9 1 is a schematic structural diagram of a noise reduction device according to an embodiment of the present invention (the shielding device is not shown in the figure). DETAILED DESCRIPTION

[0039] Refer to the following Figures 1 to 9 To describe the control method of the refrigeration and freezing device of the embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0040] Unless otherwise clearly defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0041] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the 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. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0043] In the prior art, after the compressor compartment of a refrigerator (especially a silent refrigerator) is equipped with a silencer for noise reduction, the compressor compartment is basically in a closed state. Therefore, when the compressor compartment is basically closed and there is no heat dissipation fan in the compressor compartment, the heat is mainly dissipated through the heat dissipation holes of the silencer. However, the size of the heat dissipation holes plays a decisive role not only in heat dissipation, but also in noise, but the two restrain each other. To this end, the present invention proposes a refrigeration and freezing device and a control method that can automatically adjust the aperture of the heat dissipation holes according to the temperature in the compressor compartment and / or user information around the refrigeration and freezing device, so that the silencer can fully take into account both heat dissipation and noise reduction.

[0044] Figure 1 is a schematic flow chart of a control method for a refrigeration and freezing device, such as Figure 2 As shown, and refer to Figures 2 to 9 , an embodiment of the present invention provides a control method for a refrigeration and freezing device.

[0045] The refrigeration and freezing device comprises a compressor compartment 300, on the compartment wall of which a silencer 100 is installed, and on the silencer 100 a heat dissipation through hole 101 connecting the inside and outside of the compressor compartment 300 is opened; the aperture size of the heat dissipation through hole 101 is adjustable.

[0046] like Figure 1 As shown, the control method of the refrigeration and freezing device includes the following steps:

[0047] Step S11, obtaining the temperature in the compressor compartment 300; and / or obtaining user information within a preset range of the refrigeration and freezing device.

[0048] Step S12, adjusting the aperture size of the heat dissipation through hole 101 according to the temperature and / or user information.

[0049] Specifically, the silencer device 100 includes a silencer body, a heat dissipation through hole 101 penetrating the silencer body is opened on the side wall of the silencer body, at least one silencer cavity 103 is arranged inside the silencer body, and at least one sound absorption hole 102 is opened on the surrounding wall of the heat dissipation through hole 101, and each sound absorption hole 102 is connected to at least one silencer cavity 103.

[0050] During the operation of the refrigeration and freezing device, when the noise in the compressor compartment 300 propagates from the inside to the outside, the noise enters the silencing cavity 103 through the heat dissipation holes 101 and the sound absorption holes 102 of the silencing device 100, and the noise is significantly reduced under the silencing effect of the silencing cavity 103. At the same time, the heat dissipation holes 101 of the silencing body transfer the heat in the compressor compartment 300 to the outside of the compressor.

[0051] If the temperature in the compressor compartment 300 is too high, the load on the compressor will be too large and the life of the compressor inverter box will be affected. The temperature in the compressor compartment 300 is an important indicator of the heat level in the compressor compartment 300. By using the temperature in the compressor compartment 300 as a reference factor, the heat dissipation effect can be improved by enlarging the aperture of the heat dissipation through hole 101 only when the heat in the compressor compartment 300 is too high, thereby minimizing the noise reduction effect.

[0052] The user information within the preset range of the refrigeration and freezing device refers to whether there are users around the refrigeration and freezing device. The preset range can be set as needed. The purpose of noise reduction is to improve the user experience. When there are no users around the refrigeration and freezing device, the size of the noise will not have a direct impact on the user; therefore, the aperture size of the heat dissipation through hole 101 can be enlarged at this time to improve the heat dissipation effect.

[0053] The present invention automatically adjusts the aperture size of the heat dissipation through hole 101 according to the temperature in the compressor compartment 300 and / or the user information within the preset range of the refrigeration and freezing device, realizes the automatic adjustment of the heat dissipation effect and the sound absorption effect, and fully takes into account the heat dissipation of the compressor compartment 300 and the noise reduction of the sound absorption device. Therefore, the present invention can not only reduce the load of the compressor compartment 300 and extend the life of the compressor inverter box, but also ensure the A-level mute effect of the refrigeration and freezing device.

[0054] In some embodiments of the present invention, the user information includes whether there is someone or not.

[0055] In some embodiments of the present invention, the preset range is 0-5m.

[0056] Preferably, the preset range is 0 to 3 m. For example, the preset range is 0 m, 0.1 m, 0.2 m, 0.5 m, 1 m, 2 m or 3 m.

[0057] In some embodiments of the present invention, the aperture size of the heat dissipation via 101 can be adjusted to any value between the first aperture value and the second aperture value, and the first aperture value is smaller than the second aperture value. In some alternative embodiments, the aperture size of the heat dissipation via 101 can only be adjusted to a number of single-point values, for example, the aperture size of the heat dissipation via 101 can only be adjusted to the first aperture value or the second aperture value.

[0058] In some embodiments of the present invention, adjusting the aperture size of the heat dissipation via 101 according to temperature and / or user information includes: in response to the temperature being greater than the first temperature and the heat dissipation via 101 not having the maximum aperture, expanding the aperture of the heat dissipation via 101.

[0059] Specifically, Figure 2 As shown, the control method includes the following steps:

[0060] Step S21, obtaining the temperature inside the compressor compartment 300.

[0061] Step S22 , in response to the temperature being greater than the first temperature and the heat dissipation through hole 101 not having the maximum aperture, enlarging the aperture of the heat dissipation through hole 101 .

[0062] In this embodiment, only the "temperature in the compressor compartment 300" is used as a reference factor for adjusting the heat dissipation through hole 101, and the control method is simple and easy to implement. During the operation of the compressor, the aperture of the heat dissipation through hole 101 is enlarged only when the temperature in the compressor compartment 300 is greater than the first temperature and the current aperture of the heat dissipation through hole 101 is not the maximum aperture. Therefore, the present invention can improve the heat dissipation effect of the heat dissipation through hole 101 without reducing the user's noise reduction experience as much as possible, thereby achieving a good balance between heat dissipation and noise reduction.

[0063] Furthermore, after step S21, the method further includes: step S23, in response to the temperature being less than or equal to the first temperature, and the current aperture of the heat dissipation via 101 being not the maximum aperture, not expanding the current aperture of the heat dissipation via 101. Specifically, step S23 includes the following situations: when the temperature is less than or equal to the first temperature, and the current aperture of the heat dissipation via 101 is less than the maximum aperture and greater than the minimum aperture, maintaining the current aperture of the heat dissipation via 101, or reducing the aperture of the heat dissipation via 101; when the temperature is less than or equal to the first temperature, and the current aperture of the heat dissipation via 101 is equal to the minimum aperture, maintaining the current aperture of the heat dissipation via 101.

[0064] Further, after step S21, the method further includes: step S24, in response to the temperature being less than or equal to the first temperature and the current aperture of the heat dissipation through hole 101 being the maximum aperture, reducing the current aperture of the heat dissipation through hole 101.

[0065] In some embodiments of the present invention, adjusting the aperture size of the heat dissipation via 101 according to temperature and / or user information includes: in response to the user information being no one and the heat dissipation via 101 not having the maximum aperture, enlarging the aperture of the heat dissipation via 101.

[0066] Specifically, Figure 3 As shown, the control method includes the following steps:

[0067] Step S31, obtaining user information within a preset range of the refrigeration and freezing device.

[0068] Step S32 , in response to the user information indicating that there is no one present and the heat dissipation through hole 101 does not have the maximum aperture, enlarging the aperture of the heat dissipation through hole 101 .

[0069] In this embodiment, only "user information" is used as a reference factor for adjusting the aperture size of the heat dissipation through hole 101, and the control method is simple and easy to implement. During the operation of the compressor, the aperture of the heat dissipation through hole 101 is enlarged only when the user information is no one and the current aperture of the heat dissipation through hole 101 is not the maximum aperture. Therefore, the present invention can make the refrigerator have as good a heat dissipation effect as possible under the premise that the user is not affected by noise, so that the freezing and refrigeration device can well take into account the heat dissipation of the compressor compartment 300 and the sound absorption of the sound absorption device.

[0070] Furthermore, in some embodiments of the present invention, after step S31, the method further includes: step S32, in response to the user information indicating that there is a person, and the current aperture of the heat dissipation through hole 101 is not the maximum aperture, not expanding the current aperture of the heat dissipation through hole 101. Specifically, step S32 includes the following situations: when the user information indicates that there is a person, and the current aperture of the heat dissipation through hole 101 is less than the maximum aperture and greater than the minimum aperture, maintaining the current aperture of the heat dissipation through hole 101, or reducing the aperture of the heat dissipation through hole 101; when the user information indicates that there is a person, and the current aperture of the heat dissipation through hole 101 is equal to the minimum aperture, maintaining the current aperture of the heat dissipation through hole 101.

[0071] Furthermore, after step S31 , the method further includes: step S33 , in response to the user information indicating that there is a person, and the current aperture of the heat dissipation through hole 101 is the maximum aperture, reducing the current aperture of the heat dissipation through hole 101 .

[0072] In some embodiments of the present invention, the aperture size of the heat dissipation through hole 101 is adjusted according to temperature and / or user information, including: in response to the temperature being greater than the first temperature, the user information being no one, and the heat dissipation through hole 101 not having the maximum aperture, the aperture size of the heat dissipation through hole 101 is enlarged.

[0073] Specifically, Figure 4 As shown, the control method includes the following steps:

[0074] Step S41, obtaining the temperature in the compressor compartment 300, and obtaining user information within a preset range of the refrigeration and freezing device.

[0075] Step S42: in response to the temperature being greater than the first temperature, the user information being that no one is present, and the heat dissipation through hole 101 not having the maximum aperture, the aperture of the heat dissipation through hole 101 is enlarged.

[0076] In this embodiment, "user information" and "temperature in the compressor compartment 300" are used as reference factors for adjusting the aperture size of the heat dissipation through hole 101. Only when the temperature is greater than the first temperature, the user information is no one, and the heat dissipation through hole 101 is not the maximum aperture, the aperture of the heat dissipation through hole 101 is enlarged. Therefore, this embodiment can make the refrigerator have as good a heat dissipation effect as possible under the premise that the user is not affected by noise, so that the freezing and refrigeration device can well take into account the heat dissipation of the compressor compartment 300 and the noise reduction of the sound absorbing device.

[0077] In some embodiments of the present invention, adjusting the aperture size of the heat dissipation via 101 according to temperature and user information includes: the priority of adjusting the aperture size of the heat dissipation via 101 according to user information is higher than the priority of adjusting the aperture size of the heat dissipation via 101 according to temperature.

[0078] In this embodiment, compared with the method of using only "user information" or "temperature in the compressor compartment 300" as a reference factor for adjusting the aperture size of the heat dissipation through hole 101, this embodiment uses two reference factors, "user information" and "temperature in the compressor compartment 300". This embodiment preferentially uses whether there are people around the refrigeration device as a reference factor, and then uses temperature as a reference factor to control the size of the heat dissipation aperture, so that when there are people around the refrigeration device, the aperture can be kept relatively small, which can reduce the adverse effects of noise on people; and when there is no one near the refrigeration device, the aperture of the heat dissipation hole is controlled according to the temperature control, which can improve the heat dissipation effect of the compressor compartment 300. Therefore, the present invention can make the refrigerator have as good a heat dissipation effect as possible under the premise that the user is not affected by noise, that is to say, the present proposal takes into account both heat dissipation and noise reduction.

[0079] like Figure 4 As shown, further, in some optional embodiments of the present invention, after the aperture of the heat dissipation through hole 101 is enlarged, the control method further includes: step S43, in response to the user information changing from no one to someone, reducing the aperture of the heat dissipation through hole 101.

[0080] Specifically, after step S42, when the user information changes from no one to someone, the aperture of the heat dissipation through hole 101 is reduced to reduce the adverse effect of noise on people.

[0081] like Figure 4 As shown, further, in some optional embodiments of the present invention, after expanding the aperture of the heat dissipation through hole 101, the control method also includes: step S44, in response to the temperature being less than or equal to the second temperature, reducing the aperture of the heat dissipation through hole 101, and the second temperature is less than the first temperature.

[0082] Specifically, after step S42, if the user information is still no one, when the temperature is less than or equal to the second temperature, the aperture of the heat dissipation through hole 101 is reduced. When the temperature is less than or equal to the second temperature, it means that the temperature in the compressor compartment 300 is relatively low. At this time, the aperture of the heat dissipation through hole 101 is reduced to improve the silencing effect of the silencing device 100, which can prevent users from suddenly entering the vicinity of the freezing and refrigerating device and affecting the user experience, and will not affect the heat dissipation of the compressor.

[0083] Further, the first temperature is a preset temperature upper limit value, and the second temperature is a preset temperature lower limit value. In response to the temperature being less than or equal to the second temperature, the aperture size of the heat dissipation through hole 101 is controlled to be adjusted to a minimum aperture size.

[0084] Furthermore, after the aperture of the heat dissipation through hole 101 is enlarged, the control method further includes: in response to the temperature being greater than the second temperature, maintaining the current aperture of the heat dissipation through hole 101 .

[0085] like Figure 5 As shown, adjusting the aperture size of the heat dissipation through hole 101 according to the temperature and / or user information includes: step S45, in response to the temperature being greater than the first temperature, the user information being that there is someone, and the heat dissipation through hole 101 is not the maximum aperture, the current aperture of the heat dissipation through hole 101 is not enlarged.

[0086] Specifically, when the user information indicates that there is someone, the temperature is greater than the first temperature, and the heat dissipation through hole 101 does not have the maximum aperture, the current aperture of the heat dissipation through hole 101 is reduced or maintained.

[0087] In the above embodiments, when controlling the size of the heat dissipation aperture, user information is used as a reference factor first, and then temperature is used as a reference factor. This allows the refrigeration and freezing device to have as good a heat dissipation effect as possible without affecting the user by noise, thereby achieving a good balance between heat dissipation and noise reduction.

[0088] like Figure 6 As shown, in some optional embodiments of the present invention, the aperture size of the heat dissipation through hole 101 is adjusted according to the temperature and / or user information, including: step S121, in response to the temperature being less than or equal to the first temperature and the heat dissipation through hole 101 not being the maximum aperture, the current aperture of the heat dissipation through hole 101 is not expanded.

[0089] Specifically, when the temperature is less than or equal to the first temperature, and the current aperture of the heat dissipation via 101 is less than the maximum aperture and greater than the minimum aperture, the current aperture of the heat dissipation via 101 is maintained, or the aperture of the heat dissipation via 101 is reduced; when the temperature is less than or equal to the first temperature, and the current aperture of the heat dissipation via 101 is equal to the minimum aperture, the current aperture of the heat dissipation via 101 is maintained.

[0090] In some embodiments of the present invention, the control method further comprises: in response to starting the compressor, controlling the heat dissipation channel to execute a minimum aperture.

[0091] In some preferred embodiments of the present invention, a control method for a refrigeration and freezing device comprises the following steps:

[0092] Step S51, obtaining user information within a preset range of the refrigeration and freezing device.

[0093] In step S52 , in response to the user information indicating that there is a person, and the current aperture of the heat dissipation through hole 101 is not the maximum aperture, the current aperture of the heat dissipation through hole 101 is maintained.

[0094] Step S53, in response to the user information indicating that there is no one, the temperature inside the compressor compartment 300 is obtained.

[0095] Step S54 : if the temperature is lower than the first temperature and the current aperture of the heat dissipation through hole 101 is not the maximum aperture, the current aperture of the heat dissipation through hole 101 is maintained.

[0096] Step S55 , if the temperature is greater than the first temperature and the current aperture of the heat dissipation through hole 101 is not the maximum aperture, enlarging the aperture of the heat dissipation through hole 101 .

[0097] Step S56, after step S55, obtaining user information within a preset range of the refrigeration and freezing device.

[0098] Step S57, after step S56, in response to the user information being that there is no one, it is determined whether the temperature in the compressor compartment 300 is greater than the second temperature.

[0099] Step S581, if the temperature in the compressor compartment 300 is not greater than the second temperature, the aperture of the heat dissipation through hole 101 is reduced.

[0100] Step S582: if the temperature in the compressor compartment 300 is greater than the second temperature, the aperture of the heat dissipation through hole 101 is maintained.

[0101] Step S59, after step S56, in response to the user information indicating that there is someone, the aperture of the heat dissipation through hole 101 is reduced, and step S51 is executed.

[0102] In some embodiments of the present invention, at least one muffler cavity 103 is disposed inside the muffler device 100 , at least one sound absorption hole 102 is opened on the peripheral wall of the heat dissipation through hole 101 , and each sound absorption hole 102 is connected to at least one muffler cavity 103 .

[0103] In some embodiments of the present invention, a shielding device is provided on the muffler device 100 for controlling the opening of the heat dissipation through hole 101 to achieve adjustable aperture size of the heat dissipation through hole 101 .

[0104] In some embodiments of the present invention, the first shielding device includes a shielding piece, which is located on the side of the muffler body, and the shielding piece shields the heat dissipation through hole 101 by rotating, flipping or translating. In other optional embodiments, the shielding device can also be a block.

[0105] In some optional embodiments of the present invention, the blocking piece is circular and has a blocking position. When the blocking piece is in the blocking position, the blocking piece is coaxial with the heat dissipation through hole 101 .

[0106] In some optional embodiments of the present invention, a rotating shaft is provided on the muffler, the rotating shaft is parallel to the axis of the heat dissipation through hole 101, and the baffle is connected to the rotating shaft so that the baffle rotates with the rotating shaft.

[0107] Preferably, the driving device is a first rotating motor to drive the rotating shaft to rotate.

[0108] In some optional embodiments of the present invention, a hinge shaft is provided on the side of the muffler body, and the baffle is connected to the hinge shaft so that the baffle can flip along with the hinge shaft.

[0109] Preferably, the driving device is a second rotary motor to drive the hinge shaft to rotate.

[0110] In some optional embodiments of the present invention, a guide rail is provided on the side of the silencer, the guide rail passes through the opening of the heat dissipation through hole 101 or is provided on one side of the opening of the heat dissipation through hole 101, and a slider adapted to the guide rail is provided on the baffle to enable the baffle to move along the guide rail.

[0111] Preferably, the driving device is a linear drive mechanism, and the output end of the linear drive mechanism is fixedly connected to the baffle or the slider to drive the baffle to move linearly, thereby changing the aperture size of the heat dissipation channel. Specifically, the linear drive mechanism is an electric push rod, a linear motor or a ball screw.

[0112] In some embodiments of the present invention, obtaining the temperature in the compressor compartment 300 includes: obtaining the temperature in the compressor compartment 300 via a temperature sensor in the compressor compartment 300 .

[0113] Specifically, a temperature sensor is disposed in the compressor compartment 300 .

[0114] In some embodiments of the present invention, obtaining user information within a preset range of the refrigeration and freezing device includes: obtaining the user information through a human sensing sensor on the refrigeration and freezing device.

[0115] Specifically, a human sensing sensor is provided on the refrigerating and freezing device.

[0116] In some embodiments of the present invention, obtaining user information within a preset range of the refrigeration and freezing device includes: obtaining the user information through a smart wearable device worn by the user.

[0117] In some embodiments of the present invention, the refrigerator-freezer is a refrigerator.

[0118] Preferably, the refrigerating and freezing device is a silent refrigerator.

[0119] In some embodiments of the present invention, the refrigerator-freezer is a freezer.

[0120] In some embodiments of the present invention, the refrigerator-freezer comprises a cabinet 200 , and the compressor compartment 300 may be located at any position of the cabinet 200 , such as at the bottom, middle or top of the cabinet 200 .

[0121] Preferably, the compressor compartment 300 is located at the bottom of the casing 200 .

[0122] In some embodiments of the present invention, the compressor compartment 300 includes a compartment wall, which includes a left wall, a right wall, an upper wall, a bottom wall, a front wall and a rear wall, and a silencer 100 is installed on at least one of the left wall, the right wall, the upper wall, the bottom wall, the front wall and the rear wall.

[0123] In some embodiments of the present invention, silencers 100 are installed on both the left and right walls of the warehouse wall.

[0124] In some embodiments of the present invention, a silencer 100 is installed on both the left and right walls of the warehouse wall, and the through holes of the two silencers 100 are at different heights. The heat dissipation through holes 101 of the two silencers 100 are one high and one low, and the heat dissipation through holes 101 of the two silencers 100 are respectively a first through hole and a second through hole, and the first through hole is higher than the second through hole.

[0125] In the scenario where there is no heat dissipation fan in the compressor compartment 300 and natural convection occurs, when the compressor is working, based on the principle that the density of hot air is small and the density of cold air is large, and hot air will automatically rise, the high-temperature airflow in the compressor compartment 300 automatically flows upward and is discharged from the compressor compartment 300 through the first through hole, and at the same time, a negative pressure is generated at the bottom of the compressor compartment 300. Under the action of the atmospheric pressure outside the compressor compartment 300, the outside air enters the compressor compartment 300 through the through hole at the lower position. In other words, the first through hole at the upper position is the airflow outlet, and the second through hole at the lower position is the airflow inlet, thereby forming an airflow that runs through the compressor compartment 300, so that the airflow can quickly flow through the compressor compartment 300, take away the heat in the compressor compartment 300, and have a good heat dissipation effect. In summary, the heat dissipation through holes 101 of the two silencers 100 are one high and one low, and when there is no fan in the compressor compartment 300, the heat flow line in the compressor compartment 300 can form a smooth air path, thereby improving the heat dissipation efficiency of the compressor compartment 300, and further improving the service life of the compressor.

[0126] In some embodiments of the present invention, the diameters of the heat dissipation holes 101 of the two silencers 100 are different.

[0127] The heat dissipation holes 101 on the left and right sides of the compressor compartment 300 are one large and one small, one heat dissipation hole 101 is an airflow inlet, and the other heat dissipation hole 101 is an airflow outlet, which can make the heat flow line in the compressor compartment 300 form a smooth air path, and the gas flow speed in the compressor compartment 300 is faster, thereby improving the heat dissipation efficiency and heat dissipation effect. Therefore, the present invention can not only be used in the scene where there is no heat dissipation fan in the compressor compartment 300; it can also be used in the scene where there is a heat dissipation fan in the compressor compartment 300.

[0128] In this embodiment, since the aperture sizes of the heat dissipation holes 101 of the two silencers 100 are different, one is used for air intake and the other is used for air discharge, so that the heat flow lines in the compressor compartment 300 form a smooth air path, thereby improving the flow rate of the air in the compressor compartment 300. Therefore, compared with the case where the aperture sizes of the heat dissipation holes 101 of the two silencers 100 are equal, the present invention has a better heat dissipation effect, thereby improving the service life of the compressor.

[0129] In some embodiments of the present invention, the heat dissipation holes 101 of the two silencers 100 have different heights, and the heat dissipation holes 101 of the two silencers 100 have different aperture sizes.

[0130] Specifically, the heat dissipation through holes 101 of the two silencers 100 are respectively a first through hole and a second through hole. The second through hole is lower than the first through hole, and the inner diameter of the second through hole is greater than the inner diameter of the first through hole.

[0131] In this embodiment, on the one hand, the heat dissipation through holes 101 of the two silencers 100 can form a smooth air path for the heat flow lines in the compressor compartment 300 when there is no fan in the compressor compartment 300, thereby improving the heat dissipation efficiency of the compressor compartment 300 and further improving the service life of the compressor. In addition, since the inner diameter of the second through hole is larger than the inner diameter of the first through hole, that is, the airflow inlet is larger than the airflow outlet, the air intake of the compressor compartment 300 can be increased, and the flow speed of the airflow in the compressor compartment 300 can be further improved, so that the compressor compartment 300 has a better heat dissipation effect.

[0132] The present invention also provides a refrigeration and freezing device, which includes a controller, the controller includes a memory and a processor, the memory stores a control program, and when the control program is executed by the processor, it is used to implement the control method described in any one of the above embodiments.

[0133] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A control method for a refrigeration and freezing device, the refrigeration and freezing device comprising a compressor compartment, a silencer is installed on the compartment wall of the compressor compartment, and a heat dissipation through hole connecting the inside and outside of the compressor compartment is opened on the silencer; characterized in that: The diameter of the heat dissipation through hole is adjustable; The control method comprises: Obtaining the temperature in the compressor compartment; and / or Acquiring user information within a preset range of the refrigeration and freezing device; The aperture size of the heat dissipation through hole is adjusted according to the temperature and / or the user information.

2. The control method according to claim 1, characterized in that: The adjusting the aperture size of the heat dissipation through hole according to the temperature and / or the user information includes: In response to the temperature being greater than the first temperature and the heat dissipation through hole not having a maximum aperture, the aperture of the heat dissipation through hole is enlarged.

3. The control method according to claim 1, characterized in that: The adjusting the aperture size of the heat dissipation through hole according to the temperature and / or the user information includes: In response to the user information indicating that there is no one present and the heat dissipation through hole does not have a maximum aperture, the aperture of the heat dissipation through hole is enlarged.

4. The control method according to claim 1, characterized in that: The adjusting the aperture size of the heat dissipation through hole according to the temperature and / or the user information includes: In response to the temperature being greater than the first temperature, the user information being that no one is present, and the heat dissipation through hole not having a maximum aperture, the aperture of the heat dissipation through hole is enlarged.

5. The control method according to claim 4, characterized in that: After the enlarging the diameter of the heat dissipation through hole, the method further includes: In response to the user information changing from "no one" to "someone", the aperture of the heat dissipation through hole is reduced.

6. The control method according to claim 4, characterized in that: After the enlarging the diameter of the heat dissipation through hole, the method further includes: In response to the temperature being less than or equal to a second temperature, the diameter of the heat dissipation through hole is reduced, and the second temperature is less than the first temperature.

7. The control method according to claim 1, characterized in that: The adjusting the aperture size of the heat dissipation through hole according to the temperature and / or the user information includes: In response to the temperature being less than or equal to the first temperature and the heat dissipation via not having a maximum aperture, the current aperture of the heat dissipation via is not enlarged.

8. The control method according to claim 1, characterized in that: The adjusting the aperture size of the heat dissipation through hole according to the temperature and / or the user information includes: In response to the temperature being greater than the first temperature, the user information is that there is a person, and the heat dissipation through hole is not of the maximum aperture, the current aperture of the heat dissipation through hole is not enlarged.

9. The control method according to claim 1, characterized in that: At least one muffler cavity is arranged inside the muffler device, and at least one sound absorption hole is opened on the peripheral wall of the heat dissipation through hole, and each of the sound absorption holes is communicated with at least one muffler cavity.

10. A refrigeration and freezing device, characterized in that: The invention comprises a controller, wherein the controller comprises a memory and a processor, wherein a control program is stored in the memory, and when the control program is executed by the processor, it is used to implement the control method according to any one of claims 1 to 9.

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