KR102210493B1 - Refrigeration system - Google Patents

Abstract

According to one aspect of the present invention, provided is a refrigeration apparatus capable of evaporating and discharging refrigerant to a refrigeration space to store loads loaded in the refrigeration space at an optimal temperature and an optimal environment. According to the present invention, the refrigeration apparatus comprises: a cooling unit provided on one side of the upper end of the refrigeration space to provide cool air; and a loading unit formed to be provided with a large amount of loading.

Description

Refrigeration system {REFRIGERATION SYSTEM}

The present invention relates to a refrigerating apparatus, and more particularly, to a refrigerating apparatus capable of evaporating and releasing a refrigerant into a refrigerating space to store loads loaded in the refrigerating space at an optimum temperature and an optimum environment.

The cooling device is for maintaining the temperature of a refrigerated warehouse that stores various frozen foods or low-temperature foods, and a cooling device is installed on one side of the upper part of the refrigerated warehouse to ensure that the internal temperature of the refrigerated warehouse is low through the evaporator of the cooling device. It is to be.

In addition, the cooling cycle of the above-described cooling system is that the refrigerant is circulated along the circulation pipe in the order of compressor -> condenser -> expansion valve -> evaporator, and briefly describing the operation relationship, the compressor is operated by the power of the engine. It is driven.

As the compressor is driven, the refrigerant in a high temperature and low pressure state reaches the condenser and enters a medium temperature and high pressure state, and the refrigerant provided from the condenser passes through an expansion valve and flows into the evaporator. Therefore, since the liquid refrigerant is vaporized instantaneously and absorbs surrounding heat, cold air is formed around the evaporator, so that the cold air is discharged into the inside of the refrigerator by a separate exhaust fan.

However, in the case of the system as described above, since the refrigerant provided from the compressor with a limited capacity is transferred to the evaporator through the expansion valve and used, there is an inconvenience in managing the expansion valve, and a problem occurs in the expansion valve. In this case, there is a problem that the cooling effect is also lowered.

Korean Patent Registration No. 10-0981447

An aspect of the present invention provides a refrigeration device capable of storing the loads loaded in the refrigerating space at an optimum temperature and an optimum environment by evaporating and releasing a refrigerant into a refrigerating space.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

A refrigerating device according to an embodiment of the present invention may include a cooling unit provided on one side of an upper end of the refrigerating space to provide cool air.

A refrigerating device according to an embodiment of the present invention includes a loading part formed to be provided with a large amount of loading; And a temperature control unit positioned inside or outside the refrigerating space, generating a temperature signal to enable the internal temperature control of the refrigerating space according to a desired temperature input, and transmitting the generated temperature signal to the cooling unit. It may contain more.

The cooling unit according to an embodiment includes a device for generating a refrigerant such as a compressor and a condenser to receive the temperature signal from the temperature control unit and match the temperature of the refrigerating space to the temperature signal received from the temperature control unit. A refrigerant generating unit provided to generate a refrigerant; A delivery valve formed in the shape of a circular column, formed in an empty shape, and connected to the cold air generation unit at the other end to receive and deliver the refrigerant generated by the cold air generation unit; And a refrigerant evaporator for evaporating and discharging the refrigerant delivered from the delivery valve to the refrigerating space.

The cooling unit may include a power supply unit supplying power to the cold air generating unit and the refrigerant evaporation unit and opening a passage of the delivery valve; And a valve fixing part for fixing the delivery valve.

The refrigerant evaporation unit according to an embodiment may include a fan provided therein and rotating to promote vaporization of the refrigerant delivered through the delivery valve.

The delivery valve according to an embodiment may include an external holding unit provided in a shape surrounding an outer surface along a longitudinal direction, and configured to maintain an internal temperature so that the delivered refrigerant can be delivered regardless of the external temperature; An internal holding unit provided in a shape surrounding the inner surface along the longitudinal direction to maintain the temperature of the refrigerant transmitted through the interior; A cylinder positioned to penetrate the interior; It is provided at the lower end of the cylinder to open when the cylinder is contracted to allow the refrigerant to move inside and transfer to the refrigerant evaporation unit, and to close when the cylinder is relaxed to prevent movement of the refrigerant. A first passage; It is provided at the top of the cylinder to open when the cylinder is contracted to allow the refrigerant to move inside and transfer to the refrigerant evaporation unit, and to close when the cylinder is relaxed to prevent movement of the refrigerant. A second passage; A first connection part that opens one end of the cylinder to allow contraction when power is input from the power supply; And positioned to be fixed to one end of the cylinder to penetrate the inside of the first connection part, and when power is input from the power supply and one end of the first connection part is opened, it is rebound due to contraction of the cylinder. And the second connection part moving in a direction opposite to the first connection part.

The valve fixing part according to an embodiment includes a groove fixed to a wall at each corner and formed to be installed; A body formed in a rectangular shape and provided with a space for accommodating the delivery valve therein, but having a width wider than the external width of the delivery valve, and formed of a hard material; A first rotating part located at the lower left of the lower end of the main body; A second rotating part located at a lower right of the lower end of the main body and located at a right of the first rotating part; A first central part located inside the first rotating part and formed to connect the main body and the first rotating part; And a second central portion positioned inside the second rotating part and formed to connect the main body and the second rotating part.

The first rotation unit and the second rotation unit according to an embodiment are in contact with the delivery valve accommodated therein, rotate together as the delivery valve rotates, and the delivery valve is accommodated to widen or narrow the interior. have.

According to one aspect of the present invention described above, the refrigerant is evaporated and released into the refrigerating space, so that the loads loaded in the refrigerating space can be stored at an optimum temperature and an optimum environment.

In addition, by adding a configuration to allow the refrigerant to be delivered without being affected by the internal temperature to the valve for transmitting the refrigerant, the refrigerant can be delivered more efficiently by utilizing the refrigerating device proposed by the present invention.

In addition, by providing a device that can fix the valve in each section of the valve that delivers the refrigerant, it is possible to protect the externally managed valve from being deformed by external pressure, and the rotation provided in the fixing device Separation of the valve by section can also be facilitated by using a module.

The effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within a range apparent to those of ordinary skill in the art from the contents to be described below.

1 is a diagram schematically illustrating a refrigerating device according to an embodiment of the present invention.
2 is a diagram specifically showing a refrigerating device according to an embodiment of the present invention.
3 is a diagram showing in detail a partial configuration of a cooling unit, which is one of the configurations of a refrigerating device according to an embodiment of the present invention.
4 is a diagram illustrating a configuration of a delivery valve that is one of the configurations of a refrigerating device according to an embodiment of the present invention.
FIG. 5 is a diagram illustrating a configuration of a valve fixing part for fixing a delivery valve, which is one of the configurations of a refrigerating device according to another embodiment of the present invention.
6 is a view showing a configuration of a loading unit, which is one of the configurations of a refrigerating device according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION The detailed description of the present invention to be described later refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It is to be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment.

When a component is referred to as being "connected" or "fastened" to another component, it is understood that it may be directly connected or fastened to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly fastened" to another component, it should be understood that there is no other component in the middle.

In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. In the drawings, like reference numerals refer to the same or similar functions over several aspects.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a diagram schematically illustrating a refrigerating device according to an embodiment of the present invention.

2 is a diagram specifically showing a refrigerating device according to an embodiment of the present invention.

Referring to FIG. 1, a refrigerating device 10 according to an embodiment of the present invention may include a cooling unit 300 and a loading unit 500, and may further include a temperature control unit 400.

The cooling unit 300 may be provided on one side of the upper end of the refrigerating space 100 to provide cool air to the refrigerating space 100, and through this, the refrigerating space 100 may be maintained at a constant temperature.

The loading part 500 may be formed so that a load such as meat to be stored at a constant temperature may be seated, and may be formed to provide a large amount of load such as a load that weighs not only a small amount, but also a weight.

The temperature control unit 400 may be located inside or outside the refrigerating space 100, and may generate a temperature signal so that the internal temperature of the refrigerating space 100 can be adjusted according to the desired temperature input by the user. , The generated temperature signal may be transmitted to the cooling unit 300.

Referring to FIG. 2, the cooling unit 300 may further include a refrigerant generation unit 330, a delivery valve 350, and a refrigerant evaporation unit 370, and may further include a power supply unit 310.

The refrigerant generating unit 330 may be located outside the refrigerating space 100 and may include a device such as a compressor and a condenser to generate a refrigerant for providing to the refrigerant evaporating unit 370.

Here, the refrigerant generation unit 330 may receive a temperature signal from the temperature control unit 400, and may generate the temperature of the refrigerating space 100 to match the temperature signal received from the temperature control unit 400. .

The delivery valve 350 may be formed in the form of a circular column and may be formed in a form in which the inside is empty.

The other end of the delivery valve 350 may be connected to the refrigerant generation unit 330 to receive the refrigerant generated by the refrigerant generation unit 330, and one end may be connected to the refrigerant evaporation unit 370. The provided refrigerant may be delivered to the refrigerant evaporation unit 370.

The refrigerant evaporation unit 370 may be provided with a device such as a rotatable fan therein, so that the refrigerant delivered from the delivery valve 350 may be evaporated into the refrigerating space 100 and discharged.

Referring to FIG. 3, an example in which a device such as a rotatable fan 375 is provided inside the refrigerant evaporation unit 370 can be seen.

According to the above, it has been described that the fan 375 may be included as a rotatable device to evaporate the refrigerant inside the refrigerant evaporator 370, but the device is not limited to the fan, and the device is not limited to the fan, and the air is discharged while rotating. If it is a means to make or heat it, it will be applicable to all without being bound by the name.

Here, the refrigerant evaporation unit 370 can accelerate the evaporation rate of the refrigerant due to the rotation of a rotatable fan provided therein, and accordingly, the refrigerating space 100 is adjusted to the optimum temperature in a shorter time. I can.

The power supply unit 310 may supply power so that the refrigerant generation unit 330 and the refrigerant evaporation unit 370 can be driven, and simultaneously open the passage of the delivery valve 350 while supplying power.

4 is a diagram illustrating a configuration of a delivery valve that is one of the configurations of a refrigerating device according to an embodiment of the present invention.

Referring to Figure 4, one of the configuration of the refrigeration device according to an embodiment of the present invention, the delivery valve 350 includes an external holding unit 351, an internal holding unit 353, a cylinder 358, and a first passing unit. (357-1), a second passage portion (357-2), a first connection portion (359-2), and a second connection portion (359-1) may be included.

The external holding unit 351 may be formed and provided in a shape surrounding the outer surface along the length direction of the delivery valve 350, and the refrigerant delivered to the inside of the delivery valve 350 is It may be formed of a material capable of maintaining the internal temperature of the delivery valve 350 so as to move while maintaining the temperature.

The inner holding part 353 may be formed and provided in a shape surrounding the inner surface along the length direction of the delivery valve 350, and may be formed of a material capable of maintaining the temperature of the refrigerant transmitted through the interior. .

The cylinder 358 may be positioned in a horizontal direction penetrating the inside of the delivery valve 350, and contracts or relaxes by an input signal input to the power supply unit 310 to open the passage of the delivery valve 350. ) Or can be closed.

The first passage part (357-1) may be provided at the lower end of the cylinder (358).

The first passage part (357-1) is opened so that the refrigerant can move to the inner passage of the delivery valve 350 when the cylinder 358 contracts and the passage of the delivery valve 350 is opened. can do.

On the other hand, the first passage part (357-1) is when the cylinder 358 is relaxed and the passage of the delivery valve 350 is closed, and when the cylinder 358 is relaxed, it is closed and refrigerant Can prevent movement.

The second passage part (357-2) is opened so that the refrigerant can move to the inner passage of the delivery valve 350 when the cylinder 358 contracts and the passage of the delivery valve 350 is opened. can do.

On the other hand, the second passage part (357-2) is when the cylinder 358 is relaxed and the passage of the delivery valve 350 is closed, and when the cylinder 358 is relaxed, it is closed and refrigerant Can prevent movement.

In other words, the first passage portion (357-1) and the second passage portion (357-2) are located at the upper and lower ends of the cylinder 358 and open or closed according to the contraction or relaxation of the cylinder 358. It may be closed, and the refrigerant may or may not move as the first passage portion 357-1 and the second passage portion 357-2 are open or closed.

On the other hand, the first passage portion (357-1) and the second passage portion (357-2) can be opened or closed by sensing the contraction or relaxation of the cylinder 358, but the power supply unit 310 It can be opened or closed as power is supplied from.

The configuration for controlling the driving of the first passage part 357-1 and the second passage part by sensing the movement of the cylinder 358 or sensing power input from the power supply unit 310 is selected or modified according to the intention of the user or technician Can be.

The first connection part 359-2 is positioned so as to be connected to one end of the cylinder 358, is formed in a circular shape with an empty center, but can be formed so that one end can be opened, and the cylinder 358 ) Can contract.

The second connection part 359-1 may be positioned to be fixed to one end of the cylinder 358, and is formed in a long cylindrical shape such as screws or nails, but has one end penetrating the inside of the first connection part 359-2. It may be formed in a shape.

When power is input from the power supply unit 310 to the second connection part 359-1 and one end of the first connection part 359-2 is opened, the second connection part 359-1 is rebound due to contraction of the cylinder 358. ) Can pass through the open first connection part 359-2 and exit, and move in the opposite direction of the first connection part 359-2.

Here, the first connection part 359-2 and the second connection part 359-1 may be detachable from each other by magnetism, but are not limited to being detachable by magnetism, and a device capable of implementing detachment as power is input All can be included without regard to the name.

For example, when power is input from the power supply 310, the first connection 359-2 and the second connection 359-1 lose magnetism, and one end of the first connection 359-2 that loses magnetism is opened. As a result, the second connection part 359-1, which has lost its magnetism, may move together in the contracted direction of the cylinder 358 by the cylinder 358.

If power is not input from the power supply 310, the first connection 359-2 and the second connection 359-1 may be magnetic again, and the second connection 359-1 may be the first connection 359-2. ) Can be moved to the empty center, and the first connection part 359-2 is also magnetic, and one end can be closed.

FIG. 5 is a diagram illustrating a configuration of a valve fixing part for fixing a delivery valve, which is one of the configurations of a refrigerating device according to another embodiment of the present invention.

5, a valve fixing part 700 for fixing a delivery valve, which is one of the configurations of a refrigerating device according to another embodiment of the present invention, includes grooves 711, 713, 715, 717, a main body 710, A first rotating part 730, a second rotating part 750, a first central part 731, and a second central part 751 may be included.

The grooves 711, 713, 715, 717 may be formed at each corner of the main body 710, and are formed in a shape that can be inserted into a fixing device such as screws or nails to enable fixed installation on the outside of a wall, etc. Can be.

The main body 710 may be formed in a rectangular shape, may have a space for accommodating the delivery valve 350 therein, and has a width wider than the external width of the delivery valve 350, It can be formed of a hard material.

That is, the body 710 may be formed to be fixed to the outside of the wall, etc. to surround the delivery valve 350, and formed to have a width wider than the external width of the delivery valve 350 to surround the delivery valve 350 Can be.

The first rotation unit 730 and the second rotation unit 750 may be continuously disposed at the lower end of the body 710 provided as an empty space.

A first central portion 731 and a second central portion 751 are provided inside the first rotating part 730 and the second rotating part 750, respectively, and the first central part 731 and the second central part 751 are main bodies. And the first rotating part 730 and the second rotating part 750 may be formed to be connected to each other.

Here, the first rotation unit 730 and the second rotation unit 750 may be formed with a diameter capable of contacting the delivery valve 350 located inside the main body 710, and the delivery valve 350 As it rotates, the first and second rotation units 730 and 750 may also rotate.

As the first and second rotation units 730 and 750 rotate in a clockwise direction, the first central portion 731 and the second central portion may widen the inside of the body 710 in which the delivery valve 350 is accommodated. 751 may be formed in an elliptical shape.

That is, as the delivery valve 350 rotates in a clockwise direction, the first rotation part 730 and the second rotation part 750 in contact with the delivery valve 350 may rotate in a clockwise direction, and are formed in an elliptical shape. The first rotation unit 730 and the second rotation unit 750 may be separated from the transmission valve 350 by the first central portion 731 and the second central portion 751.

Conversely, as the delivery valve 350 rotates in a counterclockwise direction, the first rotation part 730 and the second rotation part 750 in contact with the delivery valve 350 may also rotate counterclockwise, and formed in an elliptical shape. The first rotation unit 730 and the second rotation unit 750 may be closer to the transmission valve 350 by the first central portion 731 and the second central portion 751.

Accordingly, by rotating the delivery valve 350, the first and second rotation parts 730 and 750 may be rotated, and the delivery valve 350 accommodated in the body 710 may be more firmly fixed.

On the other hand, according to this, it is possible to facilitate the separation of the transmission valve 350 separated by section. For example, if the delivery valve 350 is separated by 3 sections and you want to separate the second section, As the passage is rotated in a clockwise direction, the inner space can be expanded as the first and second rotation units 730 and 750 rotate, and the delivery valve 350 located in the second section from the expanded internal space is more easily separated. Can be removed.

6 is a view showing a configuration of a loading unit, which is one of the configurations of a refrigerating device according to another embodiment of the present invention.

Referring to FIG. 6, one of the configurations of the refrigerating device 10 according to another embodiment of the present invention, the loading part 500 may include a fixed rail 590 and a moving ring 550.

The fixed rail 590 may be positioned while being fixed to the upper end of the refrigerating space 100, and the lower end is a rail, etc. so that the moving ring 550 provided at the lower part can move along the length direction of the fixed rail 590. It may be formed in the form of.

The moving ring 550 may be provided at the lower end of the fixed rail 590, and may be formed in a circular ring shape, so that it moves along the length direction of the fixed rail 590 and Can be moved according to size.

Based on the assumption that the three moving rings 550 are necessary to fix the loading section 500 when the average amount of loading is stored in the size of the loading section 500 through the following description Let me explain with an example.

When the width of the loading part 500 is wide, a plurality of moving rings 550 may be moved to fix the loading part 500 with a wider distance according to the length direction of the width.

Although the width of the loading portion 500 is narrow, when a large amount of loading is stored, a plurality of moving rings 550 may move to securely fix the loading portion 500 with a narrower distance.

The moving ring 550 is an inner fixed body 551, a first moving body 552, an insertion groove 553, a second moving body 554, a moving body 555, an external support 556, and a moving support 557. , May include a spring 558 and an external fixture 559.

The inner fixing body 551 may be positioned to be fixed on the left side of the moving ring 550, and the lower side may support the movement of the second moving body 554 at the lower end of the moving ring 550. It may be provided in the form of a support stand.

In addition, an insertion groove 553 may be formed at one end of the inner fixture 551, and a space in which the first moving body 552 passing through the insertion groove 553 can be seated may be provided.

The first moving body 552 can be inserted into the insertion groove 553, can be seated and fixed in a space provided inside the internal fixture 551, and at one end of the first moving body 552, a moving body ( 555) may be connected.

The moving body 555 may be formed long in the shape of a cylinder or the like inside the moving ring 550, and one end may be connected to the moving support 557, and the other end is greater than the width of the moving support 557. It can be formed in the shape of a cylinder having a narrow width.

The moving support 557 may be formed in the shape of a cylinder having a width enough to contact the inside of the moving ring 550, and one end may be in contact with the spring 558.

The moving body 555 and the moving support 557 may move left and right according to the movement of the second moving body 554, and the spring 558 may contract or relax as the moving body 555 moves.

The second moving body 554 may be roundly formed in a form in which a circular hole in the center at the lower end of the moving ring 550 is empty, and the other end is in the form of a support formed on one lower side of the inner fixture 551 It may be formed in a shape that contacts with.

The second moving body 554 may move in a direction opposite to the inner fixed body 551 in contact with the user's intention, and as the second moving body 554 moves, it is inserted into the insertion groove 553 and The first moving body 552 seated in the inside of the 551 can escape from the inner fixed body 551, and as the first moving body 552 comes out of the inner fixed body 551, the spring 558 Can shrink.

The external support 556 can move left and right as the second moving body 554 moves, and can be moved while being inserted into the empty interior of the external fixing body 559.

The external fixture 559 may be formed at one end of the moving ring 550, and the second moving body 554, the moving body 555, the external support 556, the moving support 557, and the spring 558 It may be formed in a form surrounding the

The above-described embodiments are for illustrative purposes only, and those of ordinary skill in the art to which the above-described embodiments belong can easily transform into other specific forms without changing the technical idea or essential features of the above-described embodiments. You can understand. Therefore, it should be understood that the above-described embodiments are illustrative and non-limiting in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope to be protected through the present specification is indicated by the claims to be described later rather than the detailed description, and should be interpreted as including all changes or modified forms derived from the meaning and scope of the claims and the concept of equivalents thereof. .

10: refrigerator
100: refrigeration space
300: cooling unit
500: loading part

Claims (2)

Includes; a cooling unit provided on one side of the upper end of the refrigerating space to provide cold air,
A loading portion formed to be provided with a large amount of loading; And
A temperature control unit positioned inside or outside the refrigerating space, generating a temperature signal to enable the internal temperature control of the refrigerating space according to a desired temperature input, and transmitting the generated temperature signal to the cooling unit; Including,
The cooling unit,
A refrigerant generation unit for generating a refrigerant by having a device for generating a refrigerant such as a compressor and a condenser to receive the temperature signal from the temperature control unit and match the temperature of the refrigerating space to the temperature signal received from the temperature control unit ;
A delivery valve formed in the shape of a circular column, formed in an empty shape, and connected to the refrigerant generator at the other end to receive and deliver the refrigerant generated by the refrigerant generator; And
Including; a refrigerant evaporation unit for evaporating and discharging the refrigerant delivered from the transfer valve to the refrigerating space,
The cooling unit,
A power supply unit supplying power to the refrigerant generating unit and the refrigerant evaporating unit and opening a passage of the transfer valve; And
Further comprising; a valve fixing portion for fixing the delivery valve,
The refrigerant evaporation unit,
Includes; a fan provided inside and rotating to promote vaporization of the refrigerant delivered through the delivery valve,
The delivery valve,
An external holding unit provided in a shape surrounding an outer surface along the longitudinal direction and configured to maintain an internal temperature so that the transmitted refrigerant can be transmitted regardless of the external temperature;
An internal holding unit provided in a shape surrounding the inner surface along the longitudinal direction to maintain the temperature of the refrigerant transmitted through the interior;
A cylinder positioned to penetrate the interior;
It is provided at the lower end of the cylinder to open when the cylinder is contracted to allow the refrigerant to move inside and transfer to the refrigerant evaporation unit, and to close when the cylinder is relaxed to prevent movement of the refrigerant. A first passage;
It is provided at the top of the cylinder to open when the cylinder is contracted to allow the refrigerant to move inside and transfer to the refrigerant evaporation unit, and to close when the cylinder is relaxed to prevent movement of the refrigerant. A second passage;
A first connection part that opens one end of the cylinder to allow contraction when power is input from the power supply; And
It is positioned to be fixed to one end of the cylinder and is formed in a shape that penetrates the inside of the first connection part, and when power is input from the power supply and one end of the first connection part is opened, the cylinder is rebound due to contraction of the cylinder. Includes; a second connection portion moving in the opposite direction of the first connection portion,
The valve fixing part,
Grooves formed to be installed by being fixed to the wall at each corner;
A body formed in a rectangular shape and provided with a space for accommodating the delivery valve therein, but having a width wider than the external width of the delivery valve, and formed of a hard material;
A first rotating part located at the lower left of the lower end of the main body;
A second rotating unit located at a lower right of the lower end of the body and located at a right of the first rotating unit;
A first central part located inside the first rotating part and formed to connect the main body and the first rotating part; And
Includes; a second central portion located inside the second rotating part and formed to connect the main body and the second rotating part,
The first rotating part and the second rotating part,
A refrigeration device that abuts the delivery valve accommodated therein, rotates together as the delivery valve rotates, and expands or narrows the interior by receiving the delivery valve.
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