KR20190008043A - Vacuum sealing case - Google Patents

Abstract

The present invention relates to a vacuum sealing case capable of electronically controlling evacuation. According to one embodiment of the present invention, the vacuum sealing case comprises: a case body having an opened upper surface and having a storage space formed therein; an upper cover detachably installed on the upper surface of the case body; and a component receiving part disposed between the upper cover and the case body, and including an air suction device evacuating the storage space and a power supply unit to supply voltage to the air suction device. The air suction device comprises: an electromagnet received in at least one space part disposed in the component reception part and installed on one wall of the space part; a moving wall part disposed perpendicular to the bottom surface of the space part, including a permanent magnet, and moved between a first position on an one wall side and a second position on the other wall side; and an elastic body coupling both ends to the one wall and the moving wall part to provide the moving wall part with a restoration force toward the first position, wherein a space between the moving wall part and the other wall is a sealed space. When voltage is applied to the electromagnet, the moving wall part approaches the electromagnet by magnetism to be moved to the first position, and the air of the reception space flows into the sealed space through a suction hole which is formed on the other wall to allow the sealed space to communicate with the reception space.

Description

VACUUM SEALING CASE

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum sealing case for discharging air in a receiving space inside a container body to the outside to form a vacuum in a receiving space or to release a vacuum state, As far as possible.

The vacuum sealed case is a product which encloses the inside of the container in a vacuum state to enclose the contents such as food and the like.

1A and 1B are cross-sectional views of a vacuum sealed case according to the prior art. In a conventional vacuum enclosure, the contents are stored in a container, then the lid 2 is closed, and the curved protrusion of the lid 2 is manually pressed by hand to maintain the inside of the container in a vacuum state. The air in the container is discharged to the through hole 6 and the through groove 12 so that the operating valve 7 is lifted upwards and the stopper of the pressing button 3 installed on the upper portion of the operating valve 7 14 are also guided so as to appropriately flow in the inner space of the insertion request 10 and are lifted up and down so that the air remaining inside the container is discharged to the outside through the through holes 6 and the through grooves 12, It is a principle to be transformed.

However, such a vacuum sealed case according to the related art is inconvenient to use because it is manually operated in order to realize vacuum, and when the strong pressing force is applied more than necessary, the container easily breaks down or breaks, Has been raised.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vacuum enclosure capable of electronically controlling vacuum formation by power application.

The objects of the present invention are not limited to those mentioned above, and other objects not mentioned may be clearly understood by those skilled in the art from the following description.

According to a first aspect of the present invention, there is provided a vacuum enclosure comprising: a container body having an upper surface opened and a receiving space formed inside; An upper cover detachably installed on an upper surface of the container body; And a component accommodating portion which is disposed between the upper cover and the container main body and accommodates an air suction device for forming a vacuum with respect to the accommodation space and a power supply portion for applying a voltage to the air suction device, Wherein the air suction device includes an electromagnet accommodated in at least one space portion provided in the component housing portion and provided on one side wall of the space portion, a permanent magnet disposed perpendicularly to a bottom surface of the space portion, And a second position on the other side wall side of the space portion, and a second wall portion that is coupled at one end to the one wall and the moving wall portion to provide a restoring force to the first position with respect to the moving wall portion Wherein the space between the moving wall portion and the other side wall is a sealed space, and when the voltage is applied to the electromagnet, And the air in the accommodation space flows into the closed space through the intake port formed in the other side wall and communicating with the closed space and the accommodation space. .

The movable wall portion is moved to the second position by the elastic force of the elastic body when the voltage is applied to the electromagnet, and when the voltage is applied to the electromagnet, And the air in the closed space can be discharged to the outside through the discharge port.

As the application and release of the voltage to the electromagnet are repeatedly performed, the movable wall portion repeatedly moves between the first position and the second position, and the movable wall portion is repeatedly moved to the closed space And air is discharged to the outside repeatedly, so that a vacuum can be formed in the receiving space.

According to a second aspect of the present invention, there is provided a vacuum enclosure comprising: a container body having an upper surface opened and a receiving space formed inside; An upper cover detachably installed on an upper surface of the container body; And a component accommodating portion which is disposed between the upper cover and the container main body and accommodates an air suction device for forming a vacuum with respect to the accommodation space and a power supply portion for applying a voltage to the air suction device, The air suction device includes a first electromagnet and a second electromagnet which are accommodated in at least one space portion provided in the component accommodating portion and fixedly installed on one side and the other side of the space portion, And a flexible air tube whose one side is coupled to the magnetic body and the other side is attached to the second electromagnet, wherein the inside of the air tube is a closed space, and the power supply part A voltage is selectively applied only to one of the first and second electromagnets, and when a voltage is applied to the first electromagnet, The magnetic body is magnetically moved to the first electromagnet to move to the first position and the air tube is elongated and the inner space of the air tube is elongated to be formed on the other side wall, And air in the accommodation space is introduced into the air tube through a communication inlet.

Further, on the other side wall, a discharge port communicating with the air tube and the outside is further formed. When a voltage is applied to the first electromagnet and a voltage is applied to the second electromagnet, The air tube is contracted while approaching the electromagnet to move to the second position, and the air inside the air tube can be discharged to the outside through the discharge port while the internal space of the air tube is reduced.

As the application of the voltage and the release of the voltage to the first electromagnet and the second electromagnet are repeatedly performed, the magnetic body repeatedly moves between the first position and the second position, Air suction into the inside of the air tube and air discharge to the outside are repeatedly performed, so that a vacuum can be formed in the receiving space.

According to a third aspect of the present invention, there is provided a vacuum enclosure comprising: a container body having an upper surface opened and a receiving space formed inside; An upper cover detachably installed on an upper surface of the container body; And a component accommodating portion which is disposed between the upper cover and the container main body and accommodates an air suction device for forming a vacuum with respect to the accommodation space and a power supply portion for applying a voltage to the air suction device, Wherein the air suction device includes an electromagnet accommodated in at least one space portion provided in the component housing portion and fixed between one side wall and another side wall of the space portion, A second movable wall portion disposed perpendicularly to a bottom surface of the space portion between the electromagnet and the other side wall, and a second movable wall portion disposed on the electromagnet and having one end fixed to the first movable wall portion, And a permanent magnet fixed to the second moving wall portion, wherein a first space between the first moving wall portion and the one side wall and a second space between the second moving wall portion Wherein when the pulse voltage is applied to the electromagnet, the permanent magnet is translationally moved in the electromagnet upper plane by the magnetism of the electromagnet, and the second moving wall portion and the second moving wall Wherein when the permanent magnet moves toward the one side wall, the air in the first space is discharged to the outside and the air in the accommodation space flows into the second space, and the permanent magnet The air in the second space is discharged to the outside and the air in the accommodation space flows into the first space when the air moves toward the other side wall.

The one side wall may have a discharge port communicating the first space with the outside and a suction port communicating the first space and the accommodation space, and the other side wall may have an outlet communicating with the second space and the outside, 2 may be formed with a suction port communicating with the accommodation space.

In addition, when the permanent magnet moves toward one side wall, air in the first space is discharged to the outside through the discharge port, and air in the accommodation space flows into the second space through the suction port, The air in the second space is discharged to the outside through the discharge port and the air in the receiving space flows into the first space through the suction port when the permanent magnet moves toward the other side wall, .

In addition, by repeatedly translating the first moving wall portion, the permanent magnet, and the second moving wall portion, air is sucked and discharged into the first and second spaces repeatedly, and a vacuum can be formed in the receiving space have.

According to a fourth aspect of the present invention, there is provided a vacuum enclosure comprising: a container body having an upper surface opened and a receiving space formed inside; An upper cover detachably installed on an upper surface of the container body; An air intake device disposed between the upper cover and the container main body to form a vacuum with respect to the accommodation space, and a component accommodating part in which a power supply part for applying a voltage to the air intake device is accommodated; Wherein the air suction device includes a push-pull solenoid accommodated in at least one space portion provided in the component accommodating portion and fixed between one side wall and the other side wall of the space portion, A first moving wall portion disposed perpendicularly to a bottom surface of the space portion between the push-pull solenoid and the other side wall and fixed to the shaft of the push-pull solenoid, and a second moving wall portion disposed perpendicularly to the bottom surface of the space portion between the push- And a second moving wall portion fixed to the plunger of the solenoid, wherein the first space between the first moving wall portion and the one side wall and the second space between the second moving wall portion and the other side wall are sealed spaces, The shaft moves transversely, and the first moving wall portion and the second moving wall portion are integrally formed with the shaft When the first moving wall moves toward the one side wall, the air in the first space is discharged to the outside, and the air in the receiving space flows into the second space, and the second moving wall part moves to the other side wall The air in the second space is discharged to the outside while the air in the accommodation space flows into the first space.

The one side wall may have a discharge port communicating the first space with the outside and a suction port communicating the first space and the accommodation space, and the other side wall may have an outlet communicating with the second space and the outside, 2 may be formed with a suction port communicating with the accommodation space.

In addition, when the shaft moves toward the one side wall, the air in the first space is discharged to the outside through the discharge port, and at the same time, the air in the accommodation space flows into the second space through the suction port The air in the second space is discharged to the outside when the shaft moves toward the other side wall and the air in the accommodation space flows into the first space through the suction port in the first space, have.

In addition, by repeatedly translating the first moving wall portion, the shaft, and the second moving wall portion, air is sucked into and discharged from the first and second spaces repeatedly, so that a vacuum can be formed in the receiving space .

The suction port may be provided with a one-way suction valve that opens the suction port when the air in the accommodation space is sucked into the closed space and closes the suction port when the air in the closed space is discharged to the outside.

In addition, the discharge port may communicate with the outside through an opening formed in the upper cover, and when the air in the closed space is discharged to the outside, the opening hole is opened in the opening hole, And a unidirectional discharge valve closing the opening hole may be provided when sucked into the space.

Further, the container body may be configured to be expanded and contracted in a corrugated shape so as to be adjustable in height.

Further, the component accommodating portion is further provided with a control portion for controlling the operation of the power supply portion, and the control portion is configured to control the power supply portion so as to repeatedly apply and release the voltage to the air suction device .

According to the vacuum hermetic case according to the embodiment of the present invention, when the contents are stored, the inside of the case is maintained in a vacuum state by using an air suction device. When the contents are to be accessed, It is advantageous in that the content can be stored and used hygienically by suppressing the propagation of germs inside the case.

In addition, since the air suction device is automatically driven by repeated application of voltage, it is easy to form a vacuum of the container main body, and has an advantage of convenience in use.

Further, since the air suction device operates to suck air at the same pressure each time, there is an advantage that the container is likely to be damaged and the service life is long.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1A and 1B are cross-sectional views of a vacuum sealed case according to the prior art.
2 is a perspective view of a vacuum enclosure according to a first embodiment of the present invention.
3 is a partially opened perspective view of the vacuum enclosure of FIG.
4 is a partial sectional view of the vacuum hermetic casing of Fig.
FIG. 5A is a conceptual view illustrating a state in which the moving wall portion is located at the first position in the air suction device of the vacuum hermetic case of FIG. 2A.
FIG. 5B is a conceptual view illustrating a state in which the movable wall portion is located at the second position in the air suction device of the vacuum enclosure of FIG. 2A.
Fig. 6 is a cross-sectional perspective view of the structure in which the component receiving portion and the upper cover of the vacuum hermetic case of Fig. 2 are combined.
7 is an exploded perspective view of a vacuum enclosure according to a first embodiment of the present invention.
8A to 8C are conceptual diagrams of a component accommodating portion constituting a vacuum enclosure according to a second embodiment of the present invention.
9A is a perspective view of a component accommodating portion constituting a vacuum enclosure according to a third embodiment of the present invention.
FIG. 9B is a conceptual view showing a component accommodating portion constituting a vacuum enclosure according to a third embodiment of the present invention. FIG.
10A and 10B are conceptual diagrams for explaining the operation principle of the air suction apparatus of the vacuum enclosure according to the third embodiment of the present invention.
11A is a conceptual view showing a component accommodating portion constituting a vacuum enclosure according to a fourth embodiment of the present invention.
11B is a cross-sectional perspective view of a component accommodating portion constituting a vacuum enclosure according to a fourth embodiment of the present invention.
12A and 12B are conceptual diagrams for explaining the operation principle of the air suction device of the vacuum enclosure according to the fourth embodiment of the present invention.
13A is a schematic exploded perspective view of a sealing cap of a vacuum enclosure according to the present invention.
Fig. 13B is a sectional view of the sealing cap of Fig. 13A. Fig.
14A is an exploded view for explaining an internal structure of a component accommodating portion according to an embodiment of the present invention.
Fig. 14B is a partial sectional view of Fig. 14A. Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unnecessary. The terms described below are defined in consideration of the structure, role and function of the present invention, and may be changed according to the intention of the user, the intention of the operator, or the custom.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art to which the present invention pertains, It is only defined by the scope of the claims. Therefore, the definition should be based on the contents throughout this specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

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

1st Example

FIG. 2 is a perspective view of a vacuum hermetic casing according to a first embodiment of the present invention, FIG. 3 is a partially opened perspective view of the vacuum hermetic casing of FIG. 2, FIG. 4 is a partial sectional view of the vacuum hermetic casing of FIG. FIG. 5B is a perspective view of the air suction device of the vacuum closing case of FIG. 2A, in which the moving wall is located at the second position; FIG. Fig. FIG. 6 is a cross-sectional perspective view illustrating a structure in which a component receiving portion and an upper cover of the vacuum enclosure of FIG. 2 are coupled to each other. FIG. 7 is an exploded perspective view of a vacuum enclosure according to the first embodiment of the present invention.

Referring to these figures, the vacuum enclosure 100 according to the first embodiment of the present invention includes a container body 110, a component receiving portion 130, and an upper cover 190.

The container body 110 is a member having an upper surface opened and an accommodation space S formed inside, and the upper cover 190 is detached to contain the contents in the accommodation space S. The shape of the container body 110 is not limited. However, the container body 110 can be configured to be stretched or contracted by an accordion type (crease-type or Java-style) folding means, and the height of the container body 110 can be adjusted.

The component accommodating portion 130 includes an air suction device 150 disposed between the container main body 110 and the upper cover 190 and forming a vacuum with respect to the accommodation space S of the container main body 110, A power supply unit 170 for applying a voltage to the air suction apparatus 150 is accommodated. The component receiving portion 130 may be coupled to the container body 110 or may be fixedly mounted on a lower side of a top cover 190 described later. The component accommodating portion 130 includes at least one space portion 131 and the air sucking device 150 is accommodated in the space portion 131. 7, the component accommodating part 130 includes a pair of space parts, one air space sucking device 150 is accommodated in one space part 131, and a power supply part 170 may be accommodated. The control unit 160 that controls the operation of the power supply unit 170 may be mounted in a space where the power supply unit 170 is housed, as shown in FIG. In addition, the component accommodating portion 130 may include another space portion to accommodate the controller 160. The component receiving portion 130 of the present invention can be installed on the upper side or the lower side of the container main body 110, and there is no particular limitation on the arrangement position thereof. However, as will be described later, it is preferable that the space 131 in which the air suction device 150 is accommodated is maintained in a closed state.

Next, the upper cover 190 is detachably mounted on the upper surface of the container body 110. The upper cover 190 may be provided with a packing member (not shown) at its rim so as to be sealed from the rim of the container body 110 at the time of engagement with the container body 110. The upper cover 190 is engaged with the container body 110 to seal the container space S in the container body 110 so that the container space 110 can be opened in the closed space 131 of the component container 130, It is possible to evacuate the accommodating space S through an operation of sucking in air of the sucker and discharging it to the outside. The shape of the upper cover 190 is not limited. For example, referring to FIG. 7, it is possible to adopt a structure in which the above-described component accommodating portion 130 is mounted in the lower side of the upper cover 190. The upper cover 190 may have a central space 192 at its center. A hermetic seal 191 is provided on the upper surface of the central space 192. The hermetic seal 191 is provided with a hinge means for rotating one side of the hermetic seal 191 in an elastically hinged manner, The central space 192 inside the upper cover 190 is opened. The bottom surface of the central space portion 192 is provided with a draw-out opening 193 communicating with the accommodation space S in the downward direction. The outlet 193 is used when the wet tissue case is stored in the container body 110, for example, when the wet tissue contained in the wet tissue case is drawn upward. When the contents are stored and stored in the accommodation space 110, the accommodation space S is kept in a vacuum state by operating the air suction device 150 described later. When the airtight seal 191 is opened to approach the contents, The vacuum in the accommodation space S can be released through the outlet 193. [

FIG. 13A is a schematic exploded perspective view of a sealing cap of a vacuum sealing case according to the present invention, and FIG. 13B is a sectional view of a sealing cap. The sealing cap 191 is provided with a vacuum release structure for supplying outside air to the inside of the central space portion 192 to release the vacuum. Specifically, a slot 191a is formed in the bottom surface of the sealing cap 191, a communication hole 191b through which the outside air can flow into the central space 192 is formed in the slot elongated groove 191a, The lower side of the slot groove 191a is provided with a plate for blocking the bottom surface thereof.

The vacuum release structure includes a button portion 194a having an operation protrusion d formed on the lower surface thereof so as to be slidably inserted into the slot slot 191a formed in the sealing plug 191, A rubber member 194b which is provided at an end of the elastic spring 194b and which is fitted and fixed by the operating projection d while closing or opening the communication hole 191b by the elastic force of the elastic spring 194b ).

According to the vacuum release structure constructed as described above, in order to open the sealing plug 191 in a vacuum state in which both the accommodation space S of the container main body and the air in the central space portion 192 escape to the outside by the air suction device So that external air can be injected into the central space 192. When the button portion 194a is pushed along the arrow, the resilient spring 194b provided in the slot groove 191a is elastically retracted so that the rubber member 194c opens the communication hole 191b so that external air flows through the slot 191a And the communication hole 191b to the central space 192 to release the vacuum state. In such a state, the closing plug 191 is opened and the contents can be easily accessed through the outlet 193.

One of the left and right sides of the sealing cap 191 of the central space 192 may be hinged to facilitate the replacement of the power supply unit 170 described above. A space portion for accommodating the power supply portion 170 of the component accommodating portion 130 is located below the opening portion 195 when the component accommodating portion 130 is accommodated in the lower side of the upper cover 190.

The component accommodating portion 130 accommodates the air suction device 150, the power supply portion 170, and the control portion 160, as described above. Hereinafter, the air suction device will be described in detail.

The air suction device 150 includes an electromagnet 151 housed in the space 131 and provided on one side wall of the space 131, a permanent magnet 153a disposed parallel to the one side wall, And a second position on the other side wall of the space 131. The movable wall 153 is coupled to one side wall and the moving wall 153 so that the moving wall 153 can be moved And an elastic body 155 for providing a restoring force to the first position.

5A is an opened perspective view showing a state where the moving wall 153 is located at the first position in the air suction device 150 of the vacuum closing case 100 of FIG. 2A, FIG. 5B is an open perspective view of the vacuum closing case 100 of FIG. In which the moving wall portion 153 is located at the second position in the air suction device 150 of FIG. The moving wall portion 153 is placed at the second position in the direction away from the electromagnet 151 by receiving the elastic force of the elastic body 155 in the normal state without the supply of the voltage. The electromagnet 151 is supplied with the voltage from the power supply unit 170, and the electromagnet 151 to which the voltage is supplied is temporarily magnetized. When a voltage is applied to the electromagnet 151, an attractive force is generated between the permanent magnet 153a of the moving wall 153 and the electromagnet 151, (153) approaches the electromagnet (151) by magnetism and moves to the first position. At this time, the moving wall portion 153 is located between the one side wall and the other side wall of the space portion 131, and a sealing member such as a rubber packing is formed on the rim of the moving wall portion 153. The space between the moving wall portion 153 and the other side wall The sealed space 131s). When the moving wall portion 153 moves back to the first position, the space occupied by the closed space 131s in the space portion 131 is relatively increased.

At this time, a suction port 161 and a discharge port 163 are formed in the other side wall of the space 131 in which the air suction device 150 is accommodated. The suction port 161 communicates with the above described enclosed space 131s and the accommodation space S and the discharge port 163 communicates with the above described enclosed space 131s with the outside. When the movable wall portion 153 moves to the first position and the occupied space of the closed space 131s is increased in the space portion 131, the air in the containing space S is separated from the closed space 131s, (See Fig. 5A). When the voltage is applied to the electromagnet 151, the moving wall 153 moved to the first position is driven to move away from the electromagnet 151 by the elastic force of the elastic body 155, and is moved to the second position 5b). The occupied space of the closed space 131s is reduced again in the space 131 when the moving wall 153 is moved to the second position and the air occupying the closed space 131s is discharged through the outlet 163 to the outside . With this function, the air suction device functions as a pumping device for expanding or compressing the inside of the accommodation space S.

The control unit 160 controls the power supply unit 170 to repeatedly apply and release the voltage to the air suction apparatus 150. [ As the above-described application and release of the voltage to the electromagnet 151 are repeatedly performed, the moving wall portion 153 repeatedly moves between the first position and the second position, and the moving wall portion 153 is repeatedly moved Air suction into the closed space 131s and air discharge to the outside are repeatedly performed. As the above operation is repeatedly performed, a vacuum is formed in the accommodation space S.

14A is an exploded view for explaining an internal structure of a component receiving part according to an embodiment of the present invention, and FIG. 14B is a partial sectional view of FIG. 14A. Referring to FIG. 14A, the component accommodating portion may further include a space portion (hereinafter referred to as an additional space portion) for accommodating the power supply portion 170. FIG. That is, a space 131 for accommodating the air suction device 150 is disposed on the left side of FIG. 14A, and an additional space for accommodating the power supply unit 170 is disposed on the right side. As shown in the figure, a pressure measuring sensor 197, a pressing member 198, and a power supply unit 170 are sequentially disposed in the additional space portion where the power supply unit is received from the bottom surface of the corresponding space portion.

A recess portion for seating the pressure measuring sensor 197 is formed on the bottom surface of the space portion, and the sensor 197 is mounted on the recess portion. At this time, a plurality of through holes (h) are formed in the periphery of the recess portion on the bottom surface to communicate the space portion and the accommodation space (S). The pressure measuring sensor 197 is a sensor for measuring the pressure in the accommodation space S, and it is preferable to employ a touch pressure sensor or a surface pressure sensor. Specifically, a pressing member 198 having elasticity such as rubber is disposed above the pressure measuring sensor 197. At this time, the pressing member 198 is formed so as to cover the entire upper portion of the pressure measuring sensor 197 and to cover the area where the through holes h around the recess portion are formed.

When the air in the accommodation space S of the container main body is sucked and discharged to the outside by the operation of the above-described air suction device 150, the inside of the accommodation space S gradually becomes a vacuum state. At this time, the additional space portion is also in communication with the accommodation space S through the through holes h, so that the air in the additional space portion can also be discharged to the outside in the process of the accommodation space S being in a vacuum state. In the process of the air in the additional space being discharged to the outside via the accommodation space S through the through holes, the pressing member 198 of the additional space portion gradually applies a downward pressure to the pressure measuring sensor 197, All the holes (h) are closed. The pressure measuring sensor 197 receives the downward pressing force from the pressing member 198, measures the value of the pressing force, and transmits the measured value to the control unit. The control unit stores a preset pressure value preset by the user and compares the delivered pressure value with the critical pressure value. If the pressure value exceeds the critical pressure value, it is determined that the inside of the accommodation space S is in a vacuum state, The power supply unit 170 is controlled to stop applying the voltage to the air suction apparatus 150. [ Accordingly, when the vacuum state is confirmed, the operation can be automatically stopped. On the other hand, when air enters into the accommodation space S due to an unwanted situation and the vacuum state is released, air flows into the interior of the additional space through the through holes h, and the downward pressing force of the pressing member 198 gradually decreases A through hole is opened. At this time, in the pressure measuring sensor, the downward pressing force is reduced from the pressing member. The pressure measuring sensor 197 transmits the measured pressure value to the control unit, and the control unit compares the preset pressure value preset by the user with the delivered pressure value. If the pressure value falls below the critical pressure value, it is determined that the vacuum state inside the accommodation space S is released, and control is performed to apply the voltage to the air suction device 150 to the power supply part 170 again. According to this control method, even if the accommodation space S is released due to an undesirable reason, it is possible to automatically restart the air suction device 150 to realize a vacuum in the accommodation space S.

6, the suction port 161 is provided with a one-way suction valve 165. The one-way suction valve 165 opens the suction port 161 when the air in the accommodation space S is sucked into the closed space 131s and the suction port 161 when the air in the closed space 131s is discharged to the outside Respectively. For example, the one-way suction valve 165 may be installed to be inserted into the suction port 161 from the inside of the other side wall. Thus, once the air is sucked into the closed space 131s, it is prevented from entering the accommodation space S again. 6, the discharge port 163 communicates with the outside through an opening hole 196 formed in the upper cover 190. An air flow path is formed between the opening hole 196 and the discharge port 163 . A one-way discharge valve 166 is provided in the opening hole 196. The one-way discharge valve 166 opens the opening hole 196 when the air in the closed space 131s is discharged to the outside, S is closed to the open hole 196 when the air in the open space 191 is sucked into the closed space 131s. For example, the one-way discharge valve 166 may be installed to be inserted into the opening hole 196 outside the opening hole 196. Thus, when the air is sucked into the closed space 131s, the air is prevented from leaking to the outside. 6 shows an embodiment in which the one-way discharge valve 166 is formed in the opening hole 196, however, the one-way discharge valve 166 may be formed in the discharge opening 163. FIG.

4 and 7, the component receiving portion 130 is configured such that an upper surface thereof is opened and a pair of space portions are formed on the inner side to receive the air suction device 150 and the power supply portion 170, respectively, A sealing sheet 180 for sealing the space 131 of the component receiving part 130 may be formed above the component receiving part 130. The space between the moving wall portion 153 and the other side wall of the space portion 131 is sealed by the moving wall portion 153 of the air suction device 150 and the sealing sheet 180. A middle cover 185 may be further disposed between the upper cover 190 and the sealing sheet to improve the sealing property between the upper cover 190 and the container body 110. [

According to the vacuum enclosure 100 according to the first embodiment of the present invention, the air suction device 150 is automatically driven by the application of a voltage to form a vacuum in the container body 110, There is an advantage that it is very convenient to use. Further, since the air suction device 150 is operated to suck air at the same pressure each time, there is an advantage that the container is likely to be damaged, and the service life is long.

Second Example

A vacuum enclosure (200) according to a second embodiment of the present invention comprises a container body, a component receiving portion, and an upper cover. Further, it may further include the above-described sealing sheet and the middle cover. Since this configuration is the same as that of the vacuum enclosure 100 according to the first embodiment of the present invention, the above description is omitted and repeated explanation is omitted.

Meanwhile, the vacuum enclosure 200 according to the second embodiment of the present invention is different from the first embodiment in the air intake device constituting the component accommodating portion 230. [

8A to 8C are perspective views of a component accommodating portion constituting a vacuum enclosure according to a second embodiment of the present invention. Referring to the drawings, the air suction device includes a first electromagnet 251 and a second electromagnet 252 fixedly installed on one side surface and the other side surface of a space portion 231 in which the air suction device is accommodated, And a second electromagnet 252 on the other side of which the other surface is attached to the magnetic body 253 and the other surface of which is attached to the second electromagnet 252 on the other side wall side, the magnetic body 253 moving between the first position and the second position on the other side wall, (255). The air tube 255 is a bellows-shaped bellows-like member that expands and contracts in the longitudinal direction. The air tube 255 is kept sealed by the magnetic substance 253 and the second electromagnet 252 on the other side wall. The inside of the air tube 255 is configured to communicate with the accommodating space S of the container main body through the suction port 261 formed on the other side wall side and communicate with the outside through the discharge port 263 as described later.

The pair of electromagnets may be in the form of a plate having a predetermined area and temporarily magnetized when a voltage is applied from the power supply unit 270. [ At this time, the power supply unit 270 selectively applies a voltage to only one of the electromagnets. When a voltage is applied to the second electromagnet 252 on the other wall side, the attraction force between the second electromagnet 252 and the magnetic body 253 is applied to the air tube 255, And the magnetic substance 253 approaches the second electromagnet 252 by magnetism and is disposed at the second position on the other side wall side. At this time, the air tube 255 contracts, and air in the air tube 255 is discharged to the outside through the discharge port 263. When a voltage is applied to the second electromagnet 252 and a voltage is applied to the first electromagnet 251 on one side wall side, a force is generated between the first electromagnet 251 and the magnetic body 253, Moves to the first position by approaching the first electromagnet 251 by magnetism. At this time, when the magnetic substance 253 moves to the first position, the inner space of the air tube 255 is relatively increased. When the magnetic substance 253 is moved to the first position and the air tube 255 is extended, the air in the accommodation space S flows into the air tube 255 through the suction hole 261. When the voltage is applied to the first electromagnet 251 and the voltage is applied to the second electromagnet 252, the magnetic substance 253 moves to the second position and the magnetic substance 253 moves to the second position The air tube 255 is contracted, and the air in the air space is discharged to the outside through the discharge port 163. With this function, the air suction device functions as a pumping device for expanding or compressing the inside of the accommodation space S.

The control unit controls the power supply unit 270 to selectively and repeatedly apply and release the voltage to the first electromagnet 251 and the second electromagnet 252 of the air suction apparatus. As the voltage is selectively applied to the first electromagnet 251 and the second electromagnet 252 under such a control environment, the magnetic body 253 repeatedly moves between the first position and the second position, The air tube 255 repeatedly elongates and contracts to repeatedly move the air into the air tube 255 and exhaust air to the outside. As the above operation is repeatedly performed, a vacuum is formed in the accommodation space S.

Meanwhile, since the unidirectional suction valve 265 is installed in the suction port 261 and the unidirectional discharge valve 266 is provided in the discharge port 263 in the opening hole 296, the repetitive description will be omitted .

Third Example

A vacuum enclosure (300) according to a third embodiment of the present invention comprises a container body, a component receiving portion, and an upper cover. Further, it may further include the above-described sealing sheet and the middle cover. Since this configuration is the same as that of the vacuum enclosure 100 according to the first embodiment of the present invention, the above description is omitted and repeated explanation is omitted.

Meanwhile, the vacuum enclosure 300 according to the third embodiment of the present invention differs from the first embodiment in the air suction device constituting the component housing part 330. [

FIG. 9A is a perspective view of a component accommodating portion constituting a vacuum enclosure according to a third embodiment of the present invention, and FIG. 9B is a conceptual diagram showing a component accommodating portion constituting a vacuum enclosure according to a third embodiment of the present invention. Referring to the drawings, the air suction device includes one electromagnet 351, a permanent magnet 352, and a pair of moving wall portions.

The electromagnet 351 is fixedly installed between one side wall and the other side wall of the space portion. The electromagnet 351 is electrically connected to the power supply unit, and the voltage is supplied from the power supply unit. The electromagnet 351 to which the voltage is supplied is temporarily magnetized. According to the third embodiment of the present invention, under the application of a voltage, the polarity of the electromagnet 351 is controlled to be converted into an N pole and an S pole. For example, in the power supply unit, the polarity of the electromagnet 351 can be switched by performing the setting control so that the flow direction of the current is periodically opposite.

The pair of moving wall portions are disposed between the electromagnet 351 and the one side wall in such a manner that the first moving wall portion 353 vertically disposed on the bottom surface of the space portion and the first moving wall portion 353 vertically disposed on the bottom surface of the space portion between the electromagnet 351 and the other side wall And a second movable wall portion 354 formed on the second movable wall portion 352. The inner space of the space portion is divided into two closed spaces by the pair of moving wall portions. The space between the first moving wall portion 353 and one side wall is referred to as a first space, and the second moving wall portion 354, Is referred to as a second space. A sealing member such as a rubber packing is formed on the edge of the space portion of the moving wall portion so that the space between the moving wall portion and the wall is sealed.

The first moving wall portion 353 and the second moving wall portion 354 are moved together by the permanent magnets 355. One end of the permanent magnet 355 has an N polarity and the other end has an S polarity. The permanent magnet 355 is disposed on an upper portion of the electromagnet 351. The permanent magnet 355 has one end fixed to the first moving wall 353, 354, respectively. One end may be fixed to the second moving wall portion 354 and the other end may be fixed to the first moving wall portion 353. As shown in Fig. 9B, the permanent magnet 355 is disposed in an upper right room of the electromagnet 351. Fig. When the pulse voltage is applied to the electromagnet 351, the permanent magnet 355 translates in the upper plane of the electromagnet 351 due to the magnetism of the electromagnet 351. At this time, the first moving wall portion 353 and the second moving wall portion 354 move together with the permanent magnet 355. The mechanism of translational motion of the permanent magnet 355 will be described in detail.

10A and 10B are conceptual diagrams for explaining the operation principle of the air suction apparatus of the vacuum enclosure according to the third embodiment of the present invention. When a voltage is applied to the electromagnet 351, the polarities of the electromagnet 351 are mutually converted at regular intervals as described above. When the electromagnet 351 is first switched to the S pole, as shown in FIG. 10A, The permanent magnet is moved so that the N pole is located in the upper right room of the electromagnet 351. At this time, the first and second moving wall portions 354 fixed to the permanent magnets 355 move together. As a result, the first and second moving wall portions 354 move toward one side wall, so that the occupation space of the first space (the space between the first moving wall portion 353 and one side wall) in the space portion is relatively reduced, The space occupied by the second space (the space between the second movable wall portion 354 and the other side wall) is relatively increased. At this time, a suction port communicating the first space and the accommodation space is formed on one side wall of the space portion, and a discharge port communicating the first space and the outside. The other side wall is formed with a discharge port communicating with the second space and the outside, and a suction port communicating with the second space and the receiving space. 10A, when the permanent magnet 355 moves toward one side wall, the air in the first space is discharged to the outside through the outlet of one side wall. In addition, air in the receiving space flows into the second space through the suction port of the other side wall in the second space where the volume increases relatively.

Then, when the electromagnet 351 has the N pole, the permanent magnet moves so that the S pole of the permanent magnet is located in the upper right room of the electromagnet 351, as shown in Fig. 10B. As a result, the first and second moving wall portions 354 move toward the other side wall, and the space occupied by the second space (the space between the second moving wall portion 354 and the other side wall) in the space portion is relatively reduced, The space occupied by the first (space between the first moving wall portion 353 and one side wall) is relatively increased. When the permanent magnet 355 moves toward the other side wall, the air in the second space is discharged to the outside while the air in the accommodation space flows into the first space. 10B, when the permanent magnet 355 moves toward the other side wall, the air in the second space is discharged to the outside through the outlet of the other side wall. The air in the receiving space flows into the first space through the inlet of the one side wall in the first space, which is relatively bulky. Again, when the electromagnet 351 has the N pole, the permanent magnet moves toward the other side so that the S pole of the permanent magnet is located in the upper right room of the electromagnet 351. Thus, the air in the second space is discharged to the outside, and the air in the receiving space flows into the first space. With this function, the air suction device functions as a pumping device for expanding or compressing the inside of the accommodation space S.

As the polarity of the electromagnet 351 is converted into the N pole and the S pole, the first moving wall portion 353, the permanent magnet 355, and the second moving wall portion 354 repeat the translational motion, The air is sucked into and discharged from the first and second spaces repeatedly to form a vacuum in the receiving space.

The control unit applies a pulse voltage to the electromagnet 351 of the air suction apparatus to control the power supply unit such that the electromagnet 351 changes its polarity at regular intervals.

On the other hand, since the unidirectional suction valve is provided in the suction port and the unidirectional discharge valve is provided in the discharge port, the repetitive description will be omitted.

Fourth Example

A vacuum enclosure case 400 according to a fourth embodiment of the present invention includes a container body 410, a component receiving portion 430, and an upper cover 490. [ Further, it may further include the above-described sealing sheet and the middle cover. Since this configuration is the same as that of the vacuum enclosure 100 according to the first embodiment of the present invention, the above description is omitted and repeated explanation is omitted.

Meanwhile, the vacuum enclosure 400 according to the fourth embodiment of the present invention is different from the first embodiment in the air intake apparatus that constitutes the component accommodating portion 430.

Fig. 11A is a conceptual view showing a component accommodating portion constituting a vacuum enclosure according to a fourth embodiment of the present invention, and Fig. 11B is a sectional perspective view of a component accommodating portion constituting a vacuum enclosure according to a fourth embodiment of the present invention. Referring to the drawings, the air suction apparatus includes a pair of movable wall portions and a push-pull solenoid 451.

The push-pull solenoid 451 is fixedly installed between one side wall and the other side wall of the space portion. The push-pull solenoid 451 is a known component and can act to push a shaft 451a (Shaft) connected to the plunger 451b through the opposite side of the solenoid, and the return of the plunger 451b And the force of the spring 451c.

The pair of movable wall portions includes a first movable wall portion 453 vertically disposed on the bottom surface of the space portion between the push-pull solenoid 451 and one side wall and fixed to the shaft 451a of the push-pull solenoid 451, And a second moving wall portion 454 vertically disposed on the bottom surface of the space between the push-pull solenoid 451 and the other side wall and fixed to the plunger 451b of the push-pull solenoid 451. The inner space of the space portion is divided into two closed spaces by the pair of moving wall portions. The space between the first moving wall portion 453 and one side wall is referred to as a first space, and the second moving wall portion 454, Is referred to as a second space. A sealing member such as a rubber packing is formed on the edge of the space portion of the moving wall portion so that the space between the moving wall portion and the wall is sealed. The first moving wall portion 453 and the second moving wall portion 454 are mutually connected and fixed to each other by a connecting rod so that the first moving wall portion 453 and the second moving wall portion 454 are fixed to the push- And moves integrally. The translational motion mechanism of the moving wall portion by the push-pull solenoid 451 will be described in detail.

12A and 12B are conceptual diagrams for explaining the operation principle of the air suction device of the vacuum enclosure according to the fourth embodiment of the present invention. When a voltage is applied to the push-pull solenoid 451, the shaft 451a and the plunger 451b integrally translationally move, and the first moving wall portion 453 and the second moving wall portion 454 move integrally. 12A, when the shaft 451a is moved toward the one side wall and the first moving wall portion 453 is pushed (stroked), the first moving wall portion 453 and the second wall portion are integrally formed The space occupied by the first space (space between the first moving wall portion 453 and one side wall) in the space portion is relatively reduced and the space occupied by the second space (the space between the second moving wall portion 454 and the other side wall) Space) occupies a relatively large space. At this time, on one side wall, a discharge port communicating the first space and the outside, and a suction port communicating the first space and the accommodation space are formed. On the other side wall, a discharge port communicating with the second space and the outside, And an air inlet communicating with the space is formed. As shown in FIG. 12A, when the first moving wall portion 453 moves toward one side wall, the air in the first space is discharged to the outside through the outlet of one side wall. The air in the accommodation space flows into the second space through the intake port of the other side wall.

When the voltage is released from the push-pull solenoid 451, when the plunger 451b is urged toward the other wall by the elasticity of the spring 451c and pushes the second moving wall portion 454, the second moving wall portion 454 Moves integrally with the first moving wall portion 453 toward the other side wall. The space occupied by the second space (the space between the second movable wall portion 454 and the other side wall) in the space portion is relatively reduced and the space occupied by the first space (the space between the first movable wall portion 453 and one side wall) Occupies a relatively large space. 12B, when the second moving wall portion 454 moves toward the other side wall, air in the second space is discharged to the outside through the outlet of the other side wall. In the first space, the air in the accommodation space flows into the first space through the intake port on one side wall. With this function, the air suction device functions as a pumping device for expanding or compressing the inside of the accommodation space S.

As a result of repeating the application and release of the voltage to the push-pull solenoid 451, the first moving wall portion 453, the shaft 451a, and the second moving wall portion 454 are repeatedly moved. The suction and discharge of the air into the first and second spaces are repeatedly performed by the translational motion, so that a vacuum is formed in the receiving space.

The control unit applies a voltage to the push-pull solenoid 451 of the air suction apparatus to control the power supply unit so that the shaft 451a of the push-pull solenoid 451 can push the movable wall unit at regular intervals.

On the other hand, since the unidirectional suction valve is provided in the suction port and the unidirectional discharge valve is provided in the discharge port, the repetitive description will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention is not limited thereto and that various changes and modifications may be made therein without departing from the scope of the invention.

100, 200, 300, 400: Vacuum enclosure case
110:
130:
150: Air suction device
151: electromagnet 153: moving wall portion
153a: permanent magnet 155: elastic body
170: power supply unit 190: upper cover
251: first electromagnet 252: second electromagnet
253: magnetic substance 255: air tube
351: electromagnet 353: first moving wall portion
354: second moving wall portion 355: permanent magnet
451: Push-pull solenoid 451a: shaft
451b: plunger 451c: spring
453: first moving wall portion 454: second moving wall portion

Claims (18)

A container body having an upper surface opened and a receiving space formed inside;
An upper cover detachably installed on an upper surface of the container body; And
An air suction device disposed between the upper cover and the container main body to form a vacuum with respect to the accommodation space, and a component accommodating part in which a power supply part for applying a voltage to the air suction device is accommodated;
Lt; / RTI >
Wherein the air suction device includes an electromagnet accommodated in at least one space portion provided in the component housing portion and provided on one side wall of the space portion, a permanent magnet disposed perpendicularly to a bottom surface of the space portion, And a second position on the other side wall side of the space portion, and a second wall portion that is coupled at one end to the one wall and the moving wall portion to provide a restoring force to the first position with respect to the moving wall portion Comprising an elastic body,
Wherein the space between the moving wall portion and the other side wall is a sealed space,
Wherein when the voltage is applied to the electromagnet, the moving wall portion is magnetically moved to the electromagnet to move to the first position, and is formed on the other wall to communicate with the accommodating space through the intake port, Wherein the air is introduced into the closed space. The method according to claim 1,
Wherein the other side wall is further provided with a discharge port communicating with the outside of the closed space,
Wherein when the voltage is applied to the electromagnet, the movable wall portion is moved to the second position by the elastic force of the elastic body, and the air in the closed space is discharged to the outside through the discharge port. 3. The method of claim 2,
As the voltage is applied and released repeatedly to the electromagnets, the moving wall portion repeatedly moves between the first position and the second position, and the moving wall portion repeatedly moves the air to the closed space Wherein the suction and the air discharge to the outside are repeated so that a vacuum is formed in the receiving space. A container body having an upper surface opened and a receiving space formed inside;
An upper cover detachably installed on an upper surface of the container body; And
An air suction device disposed between the upper cover and the container main body to form a vacuum with respect to the accommodation space, and a component accommodating part in which a power supply part for applying a voltage to the air suction device is accommodated;
Lt; / RTI >
The air suction device includes a first electromagnet and a second electromagnet which are accommodated in at least one space portion provided in the component accommodating portion and fixedly installed on one side and the other side of the space portion, And a stretchable air tube whose one surface is bonded to the magnetic body and the other surface is attached to the second electromagnet,
The inside of the air tube is a sealed space,
Wherein the power supply unit selectively applies a voltage only to one of the first and second electromagnets, and when a voltage is applied to the first electromagnet, the magnetic body approaches the first electromagnet by magnetism, The air tube is elongated while the inner space of the air tube is elongated so that the air in the accommodation space is formed in the other side wall through the air inlet communicating with the inside of the air tube and the accommodation space, Wherein the vacuum enclosure case is made of a metal. 5. The method of claim 4,
And an outlet port communicating with the outside of the air tube is formed on the other side wall,
When the voltage is applied to the first electromagnet and the voltage is applied to the first electromagnet, the magnetic body approaches the second electromagnet by magnetism and moves to the second position, The air inside the air tube is discharged to the outside through the discharge port while the internal space of the air tube is reduced. 6. The method of claim 5,
The magnetic body repeatedly moves between the first position and the second position as the application of the voltage and the release of the voltage to the first electromagnet and the second electromagnet are repetitively performed, The air suction into the inside of the air tube and the air discharge to the outside are repeatedly performed, so that a vacuum is formed in the receiving space. A container body having an upper surface opened and a receiving space formed inside;
An upper cover detachably installed on an upper surface of the container body; And
An air suction device disposed between the upper cover and the container main body to form a vacuum with respect to the accommodation space, and a component accommodating part in which a power supply part for applying a voltage to the air suction device is accommodated;
Lt; / RTI >
Wherein the air suction device includes an electromagnet accommodated in at least one space portion provided in the component housing portion and fixed between one side wall and another side wall of the space portion, A second movable wall portion disposed perpendicularly to a bottom surface of the space portion between the electromagnet and the other side wall, and a second movable wall portion disposed on the electromagnet and having one end fixed to the first movable wall portion, And a permanent magnet fixed to the second moving wall portion,
Wherein the first space between the first moving wall portion and the one side wall and the second space between the second moving wall portion and the other side wall are sealed spaces,
Wherein when the pulse voltage is applied to the electromagnet, the permanent magnet is translationally moved in the electromagnet upper plane by the magnetism of the electromagnet, and the first moving wall portion and the second moving wall portion move integrally with the permanent magnet,
Wherein when the permanent magnet moves toward the one side wall, air in the first space is discharged to the outside while air in the accommodation space flows into the second space, and when the permanent magnet moves toward the other side wall, Wherein the air in the accommodation space is introduced into the first space and the air in the accommodation space is introduced into the first space. 8. The method of claim 7,
Wherein the one side wall is formed with a discharge port communicating with the first space and the outside and a suction port communicating with the first space and the accommodation space,
And the other side wall is formed with a discharge port communicating with the second space and the outside, and a suction port communicating with the second space and the containing space. 9. The method of claim 8,
The air in the first space is discharged to the outside through the discharge port and the air in the receiving space flows into the second space through the suction port when the permanent magnet moves toward the one side wall,
When the permanent magnet moves toward the other side wall, air in the second space is discharged to the outside through the discharge port and air in the accommodation space flows into the first space through the suction port Features a vacuum sealed case. 8. The method of claim 7,
Wherein suction and discharge of air into the first and second spaces are repeatedly performed by repeatedly translating the first moving wall portion, the permanent magnet, and the second moving wall portion, whereby a vacuum is formed in the receiving space. Vacuum enclosure case. A container body having an upper surface opened and a receiving space formed inside;
An upper cover detachably installed on an upper surface of the container body; And
An air suction device disposed between the upper cover and the container main body to form a vacuum with respect to the accommodation space, and a component accommodating part in which a power supply part for applying a voltage to the air suction device is accommodated;
Lt; / RTI >
Wherein the air suction device includes a push-pull solenoid accommodated in at least one space portion provided in the component accommodating portion and fixed between one side wall and the other side wall of the space portion, A first movable wall portion disposed perpendicularly to the bottom surface of the push-pull solenoid and fixed to the shaft of the push-pull solenoid; and a second movable wall portion vertically disposed on the bottom surface of the space portion between the push- And a fixed second movable wall portion,
Wherein the first space between the first moving wall portion and the one side wall and the second space between the second moving wall portion and the other side wall are sealed spaces,
Wherein when the push-pull solenoid is energized, the shaft is translated, and the first moving wall portion and the second moving wall portion move in unison with the shaft,
When the first moving wall portion moves toward the one side wall, the air in the first space is discharged to the outside while the air in the receiving space flows into the second space, and when the second moving wall portion moves toward the other side wall Wherein the air in the second space is discharged to the outside and the air in the accommodation space flows into the first space. 12. The method of claim 11,
Wherein the one side wall is formed with a discharge port communicating with the first space and the outside and a suction port communicating with the first space and the accommodation space,
And the other side wall is formed with a discharge port communicating with the second space and the outside, and a suction port communicating with the second space and the containing space. 13. The method of claim 12,
The air in the first space is discharged to the outside through the discharge port and the air in the receiving space flows into the second space through the suction port when the shaft moves toward the one side wall,
When the shaft moves toward the other side wall, air in the second space is discharged to the outside through the discharge port, and at the same time, air in the accommodation space flows into the first space through the suction port The vacuum sealed case. 12. The method of claim 11,
Wherein suction and discharge of air into the first and second spaces are repeatedly performed by repeatedly translating the first moving wall portion, the shaft, and the second moving wall portion, whereby a vacuum is formed in the receiving space. Enclosed case. The method of claim 1, 4, 12, or 16,
Wherein the suction port is provided with a one-way suction valve for opening the suction port when the air in the accommodation space is sucked into the closed space and closing the suction port when the air in the closed space is discharged to the outside, case. The method of claim 1, 4, 12, or 16,
The discharge port communicates with the outside through an opening formed in the upper cover,
And a unidirectional discharge valve is provided in the opening hole to open the opening hole when the air in the closed space is discharged to the outside and to close the opening hole when the air in the accommodation space is sucked into the closed space. , Vacuum sealed case. 15. The method according to at least one of claims 1 to 14,
Wherein the container main body is configured to be stretched and contracted in a creasing manner to be adjustable in height. 17. The method according to any one of claims 1 to 16,
Wherein the component accommodating portion is further adapted to receive a control portion for controlling operation of the power supply portion and the control portion is configured to control the power supply portion so as to repeatedly apply and release the voltage to the air suction device , Vacuum sealed case.

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