A pressure regulating component and a refrigerator

Abstract

The present invention discloses a pressure regulating assembly and a refrigerator, relating to the technical field of refrigerators, and solving the problems of cold air leakage and condensation in the prior art where the pressure inside the inner container tends to be consistent with the external atmospheric pressure through an open channel. The pressure regulating assembly of the present invention includes a pipeline, a coil, and a magnetic member. Among them, the pipeline has a hollow internal structure, the coil is wound around the pipeline, the magnetic member is slidably arranged inside the pipeline and divides the pipeline into a first gas storage part and a second gas storage part. The first gas storage part is communicated with the chamber to be regulated, the second gas storage part is communicated with the outside, and the coil is also connected to a power supply device. The magnetic member moves inside the pipeline based on the magnitude and / or direction of the coil's energization and adjusts the volumes of the first gas storage part and the second gas storage part. The pressure regulating assembly of the present invention enables the user to easily open the door of the refrigerator, can also improve the refrigeration effect of the refrigerator, reduce the energy consumption of the refrigerator, and improve the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a pressure regulating assembly and a refrigerator. Background Art

[0002] Currently, due to the improvement of people's living standards, the demand for refrigerators is increasing day by day, and the capacity of refrigerators is also gradually increasing. The volume of refrigerators has increased from dozens of liters in the past to hundreds of liters today. The capacity has become larger, the types of food stored in the refrigerator have increased, and the frequency of use by users has also increased.

[0003] Traditional refrigerators are provided with door seals at the door body to ensure the tightness of the refrigerator inner liner. However, during the use by users, it is found that if the refrigerator door is frequently opened, there is a problem of difficult door opening. The specific reason is as follows: The door seal has a certain deformation ability. At the moment of closing the refrigerator door, the door squeezes the seal, and at the same time, part of the air in the inner liner is squeezed out, resulting in a decrease in the pressure in the inner liner. Since the pressure in the inner liner is less than the external atmospheric pressure, it causes difficult door opening; if the refrigerator door is frequently opened, the degree of negative pressure in the inner liner is aggravated, resulting in difficult door opening.

[0004] Therefore, the solution proposed in the prior art is: an open channel is provided in the inner liner foam. One end of the channel is communicated with the inner liner, and the other end of the channel is communicated with the compressor chamber. After the refrigerator door is closed, the pressure in the inner liner can be made to tend to be consistent with the external atmospheric pressure through the open channel, thereby reducing the difficulty of opening the door. However, the applicant has found that by setting the open channel, the inner liner can be communicated with the outside through the open channel, and there are at least the following problems: (1) The cold air in the refrigerator leaks through the open channel, resulting in a reduction in the refrigeration effect of the refrigerator and an increase in energy consumption; (2) There is a large temperature difference at the connection between the open channel and the inner liner, which is likely to cause a condensation problem and affect the user experience. Therefore, it is urgent to improve the existing refrigerators. Summary of the Invention

[0005] One of the purposes of the present invention is to propose a pressure regulating assembly, which solves the technical problems of cold air leakage and condensation existing in the prior art that the pressure in the inner liner tends to be consistent with the external atmospheric pressure through an open channel. The numerous technical effects that can be produced by the preferred technical solution of the present invention will be elaborated in detail below.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The pressure regulating assembly of the present invention includes a pipeline, a coil and a magnetic member. Among them, the pipeline has a hollow internal structure, the coil is wound around the pipeline, the magnetic member is slidably arranged in the pipeline and divides the pipeline into a first gas storage part and a second gas storage part. The first gas storage part is communicated with the chamber to be regulated, the second gas storage part is communicated with the outside, and the coil is also connected to a power supply device. The magnetic member moves in the pipeline based on the magnitude and / or direction of the current passing through the coil and adjusts the volumes of the first gas storage part and the second gas storage part.

[0008] According to a preferred embodiment, the shape of the magnetic member matches the shape of the pipeline, and the cross-sectional area of the magnetic member is the same as the cross-sectional area of the pipeline.

[0009] According to a preferred embodiment, when the magnetic member moves towards the direction close to the chamber to be regulated, the volume of the first gas storage part decreases, and the pressure in the chamber to be regulated increases; when the magnetic member moves towards the direction away from the chamber to be regulated, the volume of the first gas storage part increases, and the pressure in the chamber to be regulated decreases.

[0010] According to a preferred embodiment, when the coil is energized to generate a magnetic field, the magnetic induction intensity B = uNI / L. By controlling the direction of the current in the coil to change the direction of the magnetic field, the magnetic member moves in the pipeline, where N is the total number of turns of the coil, L is the length of the coil, u is a constant, and I is the magnitude of the current in the coil.

[0011] According to a preferred embodiment, when the direction of the current in the coil makes the direction of the magnetic force received by the magnetic member the same as the direction of gravity, the magnetic member moves towards the direction away from the chamber to be regulated.

[0012] According to a preferred embodiment, when the current flowing through the coil is 0, the magnetic member moves towards the direction away from the chamber to be regulated.

[0013] According to a preferred embodiment, the pressure regulating assembly further includes a first fixing member. The first fixing member is arranged below the magnetic member and is also located at the corner of the pipeline, and the cross-sectional area of the corner of the pipeline is smaller than the cross-sectional area of the magnetic member.

[0014] According to a preferred embodiment, the pressure regulating assembly further includes a second fixing member. The second fixing member is fixedly connected to the part to be installed, and the pipeline is fixedly connected to the second fixing member.

[0015] According to a preferred embodiment, the second fixing member has a through hole, the pipeline is installed in the through hole, and the through hole is in interference fit with the pipeline.

[0016] The pressure regulating assembly provided by the present invention has at least the following beneficial technical effects:

[0017] The pressure regulating assembly of the present invention includes a pipeline, a coil and a magnetic member. Among them, the pipeline has a hollow internal structure, the coil is wound around the pipeline, and the magnetic member is slidably arranged in the pipeline and divides the pipeline into a first gas storage part and a second gas storage part. The first gas storage part is communicated with the chamber to be regulated, and the second gas storage part is communicated with the outside. In addition, the coil is also connected to a power supply device. The magnetic member moves in the pipeline based on the magnitude and / or direction of the current passing through the coil and adjusts the volumes of the first gas storage part and the second gas storage part. It can be seen that for the pressure regulating assembly of the present invention, the energization of the coil can provide power for the magnetic member, causing the magnetic member to move up and down in the pipeline, thereby adjusting the volumes of the first gas storage part and the second gas storage part, and further increasing or decreasing the pressure in the chamber to be regulated.

[0018] When the pressure regulating assembly of the present invention is used in a refrigerator, before the user opens the door, the magnetic member is moved upward, so that the volume of the first gas storage part can be reduced, and part of the gas in the first gas storage part is squeezed into the refrigerator inner liner, thereby increasing the pressure in the inner liner, making the pressure in the inner liner tend to be consistent with the external atmospheric pressure, and further enabling the user to easily open the door. On the other hand, compared with the structure of arranging an open channel in the inner liner foam in the prior art, the pressure regulating assembly of the present invention can separate the inner liner from the outside through the partitioning action of the magnetic member, avoiding the problems of cold air leakage and condensation, thereby improving the refrigeration effect of the refrigerator, reducing the energy consumption of the refrigerator, and improving the user experience. That is, the pressure regulating assembly of the present invention solves the technical problems of cold air leakage and condensation existing in the prior art when the pressure in the inner liner is made to tend to be consistent with the external atmospheric pressure through an open channel.

[0019] The second object of the present invention is to propose a refrigerator.

[0020] The refrigerator of the present invention includes a refrigerator body and a pressure regulating assembly. The pressure regulating assembly is the pressure regulating assembly described in any one of the technical solutions of the present invention. The first gas storage part in the pressure regulating assembly is communicated with the inner liner, and the second gas storage part is communicated with the compressor chamber.

[0021] The refrigerator provided by the present invention has at least the following beneficial technical effects:

[0022] The refrigerator of the present invention has the pressure regulating assembly of any one of the technical solutions of the present invention. Through the action of the pressure regulating assembly, the user can easily open the door. On the other hand, the refrigerator of the present invention can also avoid the problems of cold air leakage and condensation, thereby improving the refrigeration effect of the refrigerator, reducing the energy consumption of the refrigerator, and improving the user experience. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 is a schematic diagram of a preferred embodiment of the refrigerator of the present invention;

[0025] Figure 2 is Figure 1 an enlarged view of part A in

[0026] Figure 3 is Figure 1 an enlarged view of part B in

[0027] Figure 4 is a schematic diagram of a preferred embodiment of the pressure regulating component of the present invention;

[0028] Figure 5 is Figure 4 a C-C cross-sectional view of

[0029] Figure 6 is Figure 5 an enlarged view of part D in

[0030] Figure 7 is a schematic diagram of a preferred embodiment of the second fixing member of the present invention;

[0031] Figure 8 is a schematic diagram of the coil current direction of the present invention.

[0032] In the figure: 101, pipeline; 1011, first gas storage part; 1012, second gas storage part; 102, coil; 103, magnetic member; 104, first fixing member; 105, second fixing member; 1051, through hole; 201, lower bottom plate. Specific Embodiments

[0033] To make the objectives, technical solutions and advantages of the present invention clearer, the following will describe the technical solutions of the present invention in detail. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0034] The following will combine the description of the specification Figures 1 to 8 and Embodiments 1 and 2 to describe the pressure regulating component and the refrigerator of the present invention in detail.

[0035] Embodiment 1

[0036] This embodiment will elaborate on the pressure regulating component of the present invention in detail.

[0037] The pressure regulating component of this embodiment can not only be used to regulate the pressure of the refrigerator inner container, but also be used in other devices that require pressure regulation. Taking the application of the pressure regulating component to regulate the pressure of the refrigerator inner container as an example, this embodiment will elaborate on the pressure regulating component of this embodiment in detail.

[0038] The pressure regulating component of this embodiment includes a pipeline 101, a coil 102, and a magnetic member 103, as Figure 4 and Figure 5 shown. Preferably, the pipeline 101 has a hollow internal structure, the coil 102 is wound around the pipeline 101, the magnetic member 103 is slidably disposed within the pipeline 101 and divides the pipeline 101 into a first gas storage portion 1011 and a second gas storage portion 1012. The first gas storage portion 1011 communicates with the chamber to be regulated, and the second gas storage portion 1012 communicates with the outside. Moreover, the coil 102 is also connected to a power supply device, and the magnetic member 103 moves within the pipeline 101 based on the magnitude and / or direction of the current passing through the coil 102 to adjust the volumes of the first gas storage portion 1011 and the second gas storage portion 1012, as Figure 1 , Figure 2 , Figure 4 and Figure 5 shown. More preferably, the magnetic member 103 is a rubidium magnet. Without limitation, the magnetic member 103 can also be made of other magnetic materials. More preferably, the coil 102 is connected to the main control board of the refrigerator, and the main control board of the refrigerator provides current for the coil 102. At the same time, the magnitude and direction of the current flowing through the coil 102 can also be controlled through the main control board.

[0039] The pressure regulating component of this embodiment includes a pipeline 101, a coil 102, and a magnetic member 103. Among them, the pipeline 101 has a hollow internal structure, the coil 102 is wound around the pipeline 101, the magnetic member 103 is slidably disposed within the pipeline 101 and divides the pipeline 101 into a first gas storage portion 1011 and a second gas storage portion 1012. The first gas storage portion 1011 communicates with the chamber to be regulated, and the second gas storage portion 1012 communicates with the outside. Moreover, the coil 102 is also connected to a power supply device, and the magnetic member 103 moves within the pipeline 101 based on the magnitude and / or direction of the current passing through the coil 102 to adjust the volumes of the first gas storage portion 1011 and the second gas storage portion 1012. It can be seen that the pressure regulating component of this embodiment can provide power for the magnetic member 103 by energizing the coil 102, causing the magnetic member 103 to move up and down within the pipeline 101, thereby adjusting the volumes of the first gas storage portion 1011 and the second gas storage portion 1012, and further increasing or decreasing the pressure within the chamber to be regulated.

[0040] When the pressure regulating component of this embodiment is used in a refrigerator, before the user opens the door, the magnetic member 103 moves upward, so that the volume of the first gas storage part 1011 can be reduced, and part of the gas in the first gas storage part 1011 is squeezed into the refrigerator inner liner, so that the pressure in the inner liner can be increased, and the pressure in the inner liner can tend to be consistent with the external atmospheric pressure, and then the user can easily open the door. On the other hand, compared with the structure of setting an open channel in the inner liner foam in the prior art, the pressure regulating component of this embodiment can separate the inner liner from the outside through the separating effect of the magnetic member 103, and can avoid the problems of cold air leakage and condensation, so that the refrigeration effect of the refrigerator can be improved, the energy consumption of the refrigerator can be reduced, and the user experience can also be improved. That is, the pressure regulating component of this embodiment solves the technical problems of cold air leakage and condensation existing in the prior art when the pressure in the inner liner is made to tend to be consistent with the external atmospheric pressure through an open channel.

[0041] According to a preferred embodiment, the shape of the magnetic member 103 matches the shape of the pipe 101, and the cross-sectional area of the magnetic member 103 is the same as the cross-sectional area of the pipe 101, as Figure 5 and Figure 6 shown. Preferably, the magnetic member 103 is cylindrical. The height of the magnetic member 103 is not limited. In the pressure regulating component of the preferred technical solution of this embodiment, the cross-sectional area of the magnetic member 103 is the same as the cross-sectional area of the pipe 101, so that the first gas storage part 1011 and the second gas storage part 1012 can be completely separated by the magnetic member 103, avoiding the problem that the first gas storage part 1011 and the second gas storage part 1012 at the upper and lower ends of the magnetic member 103 communicate with each other, resulting in cold air leakage affecting the refrigeration effect and energy consumption of the refrigerator and condensation affecting the user experience.

[0042] According to a preferred embodiment, when the magnetic member 103 moves towards the direction close to the chamber to be adjusted, the volume of the first gas storage portion 1011 decreases, and the pressure in the chamber to be adjusted increases; when the magnetic member 103 moves towards the direction away from the chamber to be adjusted, the volume of the first gas storage portion 1011 increases, and the pressure in the chamber to be adjusted decreases. In the pressure regulating assembly of the preferred technical solution of this embodiment, when the volume of the pipeline 101 is fixed, when the magnetic member 103 moves towards the direction close to the chamber to be adjusted, the volume of the first gas storage portion 1011 decreases, so that part of the gas in the first gas storage portion 1011 can be squeezed into the refrigerator inner liner, thereby increasing the pressure in the inner liner, making the pressure in the inner liner tend to be consistent with the external atmospheric pressure, and further enabling the user to easily open the box door; at the same time, the volume of the second gas storage portion 1012 increases. Since the second gas storage portion 1012 is communicated with the outside, the outside gas can enter the second gas storage portion 1012, so that the pressure in the second gas storage portion 1012 tends to be consistent with the external atmospheric pressure. Similarly, when the magnetic member 103 moves towards the direction away from the chamber to be adjusted, the volume of the first gas storage portion 1011 increases, so that part of the gas in the refrigerator inner liner can enter the first gas storage portion 1011, thereby reducing the pressure in the inner liner and keeping the inner liner in a low-pressure state (specifically, lower than the atmospheric pressure), which can improve the fresh-keeping effect of the refrigerator.

[0043] According to a preferred embodiment, when the coil 102 is energized to generate a magnetic field, the magnetic induction intensity B = uNI / L. By controlling the direction of the current in the coil 102, the direction of the magnetic field is changed to move the magnetic member 103 in the pipeline 101, where N is the total number of turns of the coil 102, L is the length of the coil 102, u is a constant, and I is the magnitude of the current in the coil 102. From Figure 1 it can be seen that the pressure regulating assembly is vertically installed on the rear panel of the refrigerator. According to the right-hand screw rule (i.e., Ampere's rule), when the coil 102 is energized, the N pole of the magnetic field generated by the coil 102 either points upward or downward. Therefore, the magnetic member 103 needs to be vertically placed in the energized coil so that the N pole of the magnetic member 103 is also upward or downward. Refer to Figure 8 . Hold the coil with the right hand so that the four fingers point to the current direction, and the direction pointed by the thumb is the direction of the magnetic field (N pole). It can be seen that the energized coil 102 can generate a magnetic field (electromagnetic induction), where the magnetic induction intensity B = uNI / L, N is the total number of turns of the coil 102, L is the length of the coil 102, u is a constant, and I is the magnitude of the current in the coil 102. It can be seen that the direction of the magnetic field is related to the direction of the current. Changing the direction of the current changes the magnetic field accordingly.

[0044] Exemplary: Assume that the winding method of the coil 102 is as Figure 8 shown, and the current direction is as Figure 8If the four fingers are curled in the middle, then the N pole of the magnetic field generated by the energized coil 102 points upward. Assuming that the magnetic pole direction of the magnetic member 103 is as shown in Figure 8 wherein the upper part is the S pole and the lower part is the N pole. According to "opposite poles attract and like poles repel", the magnetic member 103 will move upward. On the contrary, by controlling the current direction to be opposite to the Figure 8 shown manner, then the S pole of the magnetic field generated by the energized coil 102 points upward. Assuming that the magnetic pole direction of the magnetic member 103 is as shown in Figure 8 wherein the upper part is the S pole and the lower part is the N pole. According to "opposite poles attract and like poles repel", the magnetic member 103 will move downward.

[0045] Of course, the winding manner of the coil 102 can be opposite to the Figure 8 shown manner, and the current direction can also be opposite to the Figure 8 shown manner. However, the analysis process is the same as above and will not be elaborated here.

[0046] It can be understood that after the coil 102 is energized, a magnetic field is generated in the coil. By controlling the current direction, the direction of the magnetic field can be changed. The generated magnetic field can generate a thrust or an attractive force on the magnetic member 103 according to "opposite poles attract and like poles repel", thereby changing the movement trajectory of the magnetic member 103.

[0047] Assume that the refrigeration device is a refrigerator. In specific practice, the above power supply device can be the main control board of the refrigerator. The coil 102 is connected to the main control board of the refrigerator. The main control board of the refrigerator supplies current to the coil 102, and at the same time, the main control board can also control the magnitude and direction of the current flowing through the coil 102. Before the user opens the door, the main control board energizes the coil 102 to make the magnetic member 103 move upward, so that the volume of the first gas storage part 1011 can be reduced, and part of the gas in the first gas storage part 1011 is squeezed into the refrigerator chamber, thereby increasing the pressure in the chamber, making the pressure in the chamber tend to be consistent with the external atmospheric pressure, and further enabling the user to easily open the door of the refrigerator.

[0048] According to a preferred embodiment, when the direction of the current in the coil 102 makes the direction of the magnetic force received by the magnetic member 103 the same as the direction of gravity, the magnetic member 103 moves in a direction away from the chamber to be adjusted. When the direction of the current in the coil 102 makes the direction of the magnetic force received by the magnetic member 103 the same as the direction of gravity, regardless of the magnitude of the current, the overall force (the sum of the magnetic force and gravity) received by the magnetic member 103 is downward, thereby driving the magnetic member 103 to move downward, that is, the magnetic member 103 moves in a direction away from the chamber to be adjusted, and further reducing the pressure in the inner liner, and improving the fresh-keeping effect of the refrigerator.

[0049] According to a preferred embodiment, when the current flowing through the coil 102 is 0, the magnetic member 103 moves in a direction away from the chamber to be adjusted. In the pressure regulating assembly of the preferred technical solution of this embodiment, when the current flowing through the coil 102 is 0, the magnetic member 103 is only affected by gravity. Under the action of gravity, the magnetic member 103 moves downward, that is, the magnetic member 103 moves in a direction away from the chamber to be adjusted, thereby reducing the pressure in the inner container and improving the fresh-keeping effect of the refrigerator.

[0050] According to a preferred embodiment, the pressure regulating assembly further includes a first fixing member 104. The first fixing member 104 is disposed below the magnetic member 103 and is also located at the corner of the pipeline 101, and the cross-sectional area at the corner of the pipeline 101 is smaller than the cross-sectional area of the magnetic member 103, as Figure 6 shown. Preferably, the first fixing member 104 is a fixing pin, and the fixing pin is horizontally disposed at the corner of the pipeline 101. In the pressure regulating assembly of the preferred technical solution of this embodiment, due to the blocking action of the first fixing member 104, the magnetic member 103 can be prevented from falling to the corner of the pipeline 101, resulting in the problem that the magnetic member 103 is stuck and cannot move upward, thereby ensuring the reliability of the up-and-down movement of the magnetic member 103 in the pipeline 101.

[0051] According to a preferred embodiment, the pressure regulating assembly further includes a second fixing member 105. The second fixing member 105 is fixedly connected to the part to be installed, and the pipeline 101 is fixedly connected to the second fixing member 105, as Figure 1 and Figure 3 shown. Preferably, the second fixing member 105 has a through hole 1051, and the pipeline 101 is installed in the through hole 1051, and the through hole 1051 and the pipeline 101 are in interference fit, as Figure 7 shown. Preferably, the part to be installed is, for example, the lower bottom plate 201 of the refrigerator. More preferably, the second fixing member 105 is disposed below the lower bottom plate 201, and the lower bottom plate 201 is also provided with a through hole for installing the pipeline 101. In the pressure regulating assembly of the preferred technical solution of this embodiment, the pipeline 101 is fixed to the part to be installed through the second fixing member 105, which can not only fix the pipeline 101, but also avoid affecting the strength of the part to be installed, thereby ensuring the reliability of the refrigerator.

[0052] Embodiment 2

[0053] This embodiment describes the refrigerator of the present invention in detail.

[0054] The refrigerator of this embodiment includes a refrigerator body and a pressure regulating assembly, as Figure 1 shown. Preferably, the pressure regulating assembly is the pressure regulating assembly of any one of the technical solutions in Embodiment 1. The first gas storage part 1011 in the pressure regulating assembly is communicated with the inner container, and the second gas storage part 1012 is communicated with the compressor chamber, asFigures 1 to 3 As shown. The structure of the refrigerator body can be the same as that of the prior art and will not be elaborated here.

[0055] The refrigerator of this embodiment has the pressure regulating component of any one of the technical solutions in this embodiment. Through the action of the pressure regulating component, the user can easily open the door of the refrigerator. On the other hand, the refrigerator of this embodiment can also avoid the problems of cold air leakage and condensation, thereby improving the refrigeration effect of the refrigerator and reducing the energy consumption of the refrigerator, and also improving the user experience.

[0056] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A pressure regulating assembly, characterized in that, It includes a pipeline (101), a coil (102) and a magnetic part (103). Among them, the pipeline (101) has a hollow internal structure, the coil (102) is wound around the pipeline (101), and the magnetic part (103) is slidably arranged in the pipeline (101) and divides the pipeline (101) into a first gas storage part (1011) and a second gas storage part (1012). The first gas storage part (1011) is communicated with the chamber to be adjusted, the second gas storage part (1012) is communicated with the outside, and the coil (102) is also connected to a power supply device. The magnetic part (103) moves in the pipeline (101) based on the magnitude and / or direction of the current passing through the coil (102) and adjusts the volumes of the first gas storage part (1011) and the second gas storage part (1012). Before the user opens the door, when the magnetic part (103) moves towards the direction close to the chamber to be adjusted, the volume of the first gas storage part (1011) decreases, and the pressure in the chamber to be adjusted increases, making the pressure in the chamber tend to be consistent with the outside atmospheric pressure; when the magnetic part (103) moves towards the direction away from the chamber to be adjusted, the volume of the first gas storage part (1011) increases, and the pressure in the chamber to be adjusted decreases.

2. The pressure regulating assembly according to claim 1, wherein, The shape of the magnetic part (103) matches the shape of the pipeline (101), and the cross-sectional area of the magnetic part (103) is the same as the cross-sectional area of the pipeline (101).

3. The pressure regulating assembly according to claim 1, wherein, When the coil (102) is energized to generate a magnetic field, the magnetic induction intensity B = uNI / L. By controlling the direction of the current in the coil (102), the direction of the magnetic field is changed to make the magnetic part (103) move in the pipeline (101). Among them, N is the total number of turns of the coil (102), L is the length of the coil (102), u is a constant, and I is the magnitude of the current in the coil (102).

4. The pressure regulating assembly according to claim 1, characterized in that When the direction of the current in the coil (102) makes the direction of the magnetic force received by the magnetic part (103) the same as the direction of gravity, the magnetic part (103) moves towards the direction away from the chamber to be adjusted.

5. The pressure regulating assembly according to claim 1, characterized in that, When the current flowing through the coil (102) is 0, the magnetic part (103) moves towards the direction away from the chamber to be adjusted.

6. The pressure regulating assembly according to any one of claims 1 to 5, characterized in that It further includes a first fixing part (104). The first fixing part (104) is arranged below the magnetic part (103), and the first fixing part (104) is also located at the corner of the pipeline (101), and makes the cross-sectional area at the corner of the pipeline (101) smaller than the cross-sectional area of the magnetic part (103).

7. The pressure regulating assembly according to claim 6, characterized in that, It further includes a second fixing part (105). The second fixing part (105) is fixedly connected to the part to be installed, and the pipeline (101) is fixedly connected to the second fixing part (105).

8. The pressure regulating assembly according to claim 7, wherein, The second fixing part (105) has a through hole (1051). The pipeline (101) is installed in the through hole (1051), and the through hole (1051) is in interference fit with the pipeline (101).

9. A refrigerator, characterized in that, It includes a refrigerator body and a pressure regulating component. The pressure regulating component is the pressure regulating component described in any one of claims 1 to 8. The first air storage part (1011) in the pressure regulating component is communicated with the inner liner, and the second air storage part (1012) is communicated with the compressor chamber.

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