KR102150522B1 - Air compressor - Google Patents

Abstract

An air compressor according to the present invention comprises: a housing; A pump that is accommodated in the housing and sucks air from outside through a suction port formed in the housing; And a cooling passage for guiding the air discharged from the pump toward the cooling region so that the air discharged from the pump is injected toward a cooling region that is part of an outer surface of the pump.

Description

Air compressor {AIR COMPRESSOR}

The present invention relates to an air compressor.

Vacuum packaging means wrapping an object in plastic, etc., degassing the inside with a vacuum, and welding and sealing the circumference of the plastic. The reason for such vacuum packaging is to prevent spoilage by microorganisms by removing air from the inside, as well as to reduce the volume of clothes and the like to facilitate storage.

Vacuum packaging, which has been limitedly used in some industries, has been widely used in daily life. For example, it is used to store food for a long time at home, or to efficiently use space by reducing the volume of blankets or clothes. Etc.

For such vacuum packaging, basically, a compression pack for vacuum packaging and a device for discharging the air inside the compression pack to the outside are required.In order to discharge the air to the outside, a vacuum cleaner or a vacuum cleaner capable of inhaling air by applying negative pressure A similar pump was used.

However, in the case of vacuum cleaners or pumps, it is difficult to carry them, and even if they are made portable, there is a problem that the motor for driving the built-in pump is overheated while not sufficiently inhaling the air in the compression pack, and thus the operation has to be stopped. There was a problem that it was not appropriate for the following.

The present invention has been devised to solve such problems, and provides an air compressor for vacuum packaging.

An air compressor according to an embodiment of the present invention includes a housing; A pump that is accommodated in the housing and sucks air from outside through a suction port formed in the housing; And a cooling passage for guiding the air discharged from the pump toward the cooling region so that the air discharged from the pump is injected toward a cooling region that is part of an outer surface of the pump.

Accordingly, it is possible to perform vacuum packaging by sucking the air inside the compression pack using an air compressor that can be conveniently portable.

Even if the air compressor is used continuously multiple times, the motor is not easily overheated, so it can be used relatively continuously for a long time.

1 is a perspective view of an air compressor and a valve according to an embodiment of the present invention.
2 is an exploded perspective view of an air compressor according to an embodiment of the present invention.
3 is an exploded perspective view of the air compressor according to an embodiment of the present invention from another angle.
4 is a longitudinal sectional view of an air compressor according to an embodiment of the present invention.
5 is a perspective view showing a side portion of a housing of an air compressor according to an embodiment of the present invention.
6 is a perspective view illustrating a side portion of a housing of an air compressor according to an embodiment of the present invention from a different angle.
7 is a perspective view showing a lower surface of a housing of an air compressor according to an embodiment of the present invention.
8 is a perspective view showing a cooling nozzle of an air compressor according to an embodiment of the present invention.
9 is a perspective view showing a cooling nozzle of an air compressor according to an embodiment of the present invention from a different angle.
10 is a diagram illustrating a state in which an air compressor according to an embodiment of the present invention is connected to a valve formed in a compression pack.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible even if they are indicated on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function obstructs an understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the constituent elements of the embodiment of the present invention, terms such as first, second, A, B, (a), (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected or connected to that other component, but another component between each component It should be understood that may be “connected”, “coupled” or “connected”.

1 is a perspective view of an air compressor 1 and a valve 2 according to an embodiment of the present invention. 2 is an exploded perspective view of the air compressor 1 according to an embodiment of the present invention. 3 is an exploded perspective view from another angle of the air compressor 1 according to an embodiment of the present invention. 4 is a longitudinal sectional view of an air compressor 1 according to an embodiment of the present invention.

Referring to the drawings, an air compressor 1 according to an embodiment of the present invention includes a housing 10, a pump 20, and a cooling passage 30. In addition, the air compressor 1 according to an embodiment of the present invention may further include an intermediate duct 41, a cooling nozzle 42, a button unit 50, a control unit 60, and an optical member 80. .

Housing(10)

The housing 10 serves as a frame to which other components of the air compressor 1 according to an embodiment of the present invention can be fixed, or is a component that surrounds and protects other components. Therefore, the housing 10 has an inner space 111 in which other components can be accommodated, and has an inner surface in which other components can be coupled and fixed. The housing 10 may be formed in a cylindrical shape extending along the reference direction D as shown, but the shape is not limited thereto. In one embodiment of the present invention, the reference direction D means a direction in which the air compressor 1 moves to be coupled with the valve 2.

The housing 10 according to an embodiment of the present invention may include a side portion 11, may include a lower surface portion 13, may include an upper surface portion 14, and may include a decorative portion 12 It may include. However, the housing 10 is not limited thereto and may be divided into different numbers and shapes of components.

5 is a perspective view showing the side portion 11 of the housing 10 of the air compressor 1 according to an embodiment of the present invention. 6 is a perspective view illustrating a side portion 11 of the housing 10 of the air compressor 1 according to an embodiment of the present invention from a different angle. The side part 11 will be described with reference to FIGS. 1 to 4 and FIGS. 5 and 6. The side portion 11 is a component of the housing 10 having a shape corresponding to the side surface of the cylinder and having both ends open along the reference direction D. Therefore, the inner space 111 is surrounded by the inner surface of the side portion 11 and is formed. The side portions 11 are coupled to the upper surface portion 14 and the lower surface portion 13, which will be described later, so that the upper surface portion 14 and the lower surface portion 13 can be connected to each other.

The side portion 11 is not configured in a shape that completely coincides with the side of the cylinder, and has a protrusion 117 protruding from a portion to the outside of the radius of the cylinder as shown, and extends in the reference direction (D) to the outside of the radius. A plate-shaped connection plate 113 connecting the protruding protrusions 117 to each other may be provided. The protrusion 117 is provided to provide a better grip when the user grips the air compressor 1. The connecting plate 113 may be formed by opening a decorative portion coupling groove 1131 to which a decorative portion 12 to be described later is coupled. The decorative portion coupling groove 1131 may be formed in a cross shape as shown, but the shape is not limited thereto.

A power opening 114 through which the power connector 63 passes may be formed in the side portion 11 so that the power connector 63, which will be described later, can be exposed from the inner space 111 to the outside.

The side portion 11 is formed in a tubular shape extending along the reference direction D and surrounds the straight portion 32 of the cooling passage 30 to be described later to define a tubular portion 112 that defines the straight portion 32. You can have it inside. One end 1121 on the reference direction side of the tube part located at the end along the reference direction D is connected to the intermediate duct 41 to be described later, and the other end 1122 on the opposite side of the reference direction of the tube body part located on the opposite side is a cooling nozzle 42 to be described later. ). In order to be smoothly connected to the cooling nozzle 42 and the intermediate duct 41, the outer diameters of the both ends 1121 and 1122 of the tubular portion may be formed smaller than the outer diameter of the intermediate region of the tubular portion 112. Therefore, the tubular part 112 may have a stepped outer surface. The tubular part 112 may be located adjacent to the connection plate 113.

The side portion 11 may further include a support 115 to which an upper surface portion 14 and a lower surface portion 13 to be described later are connected. The support 115 may be configured in plural, and may extend in a direction opposite to the reference direction D or the reference direction D from the intermediate support 116 formed in an annular shape at the center of the side portion 11. Therefore, the support 115 extending in the reference direction D is coupled to the lower surface 13, and the support 115 extending in the opposite direction to the reference direction D may be coupled to the upper surface 14. have. The plurality of supports 115 may be disposed along the cylindrical inner surface of the support 115 at a predetermined interval. At the end of each support 115, a screw hole may be formed so that the fastener 93 may be fastened.

The decorative part 12 may be connected to the connection plate 113 of the side part 11. The decorative part 12 is a component extending along the reference direction D. The decoration part 12 may be formed of a material including a material such as rubber or silicone, which provides frictional force so as not to slip when the user grips the air compressor 1 according to an embodiment of the present invention.

The decorative portion 12 may include a locking portion 121 inserted into the above-described decorative portion coupling groove 1131. The cross-section of the locking portion 121 cut in a plane perpendicular to the direction in which the locking portion 121 protrudes is formed in a cross shape, and when the locking portion 121 is inserted into the decorative portion coupling groove 1131, the decorative portion 12 ) May not deviate from the side portion 11 from the connection plate 113 in the reference direction D, in a direction opposite to the reference direction D, and in one direction perpendicular to the reference direction D. The outer surface of the engaging portion 121 having a cross-section formed in a cross-shape contacts the inner surface forming the decorative portion coupling groove 1131 in a cross-shaped shape, and the decorative portion 12 in these directions is the side portion 11 It can prevent deviation from

The locking portion 121 is in contact with the outer surface of the cooling nozzle 42 to prevent the cooling nozzle 42 to be described later from being separated from the cooling passage 30. Here, the outer surface of the cooling nozzle 42 in contact with the locking portion 121 may be a side surface positioned opposite the reference direction D of the cooling nozzle 42 along the reference direction D. As shown, the locking portion 121 may be formed to have a horizontal surface on the reference direction D side and an oblique inclined surface on the opposite side. Therefore, the horizontal surface is in contact with the outer surface of the cooling nozzle 42, it is possible to prevent the cooling nozzle 42 from being separated from the tube body 112.

The upper surface portion 14 is a component of the housing 10 that covers one end of the side portion 11 opposite to the opened reference direction D, and is coupled to some of the supports 115 included in the side portion 11 to be combined with the side portion 11 ) Can be fixed. The upper surface portion 14 may be formed in an annular shape as shown, so that the button 51 of the button portion 50 is exposed to the outside through the upper surface portion center hole 141 formed in the center. As the upper surface portion 14 is covered, the optical member 80, the fixing plate 70, the button portion 50, and the substrate 61 positioned on the reference direction (D) side of the upper surface portion 14 ) May be located in the inner space 111 and fixed to the housing 10.

7 is a perspective view showing the lower surface 13 of the housing 10 of the air compressor 1 according to an embodiment of the present invention. The lower surface part 13 will be described with reference to FIGS. 1 to 4 and 7 together. The lower surface 13 is a component of the housing 10 that covers one end of the side portion 11 in the reference direction D side, and is coupled to some of the supports 115 included in the side portion 11 to be combined with the side portion 11 ) Can be fixed. The lower surface 13 is disposed to be spaced apart from the upper surface 14 along the reference direction D to face the upper surface 14.

A suction port 131 is formed in the lower surface 13. The inlet 131 is an opening through which air flows from the outside of the housing 10 to the inside of the housing 10, and may be formed at a location distal from the center of the lower surface 13. In one embodiment of the present invention, the reference direction (D) side of the suction port 131 is disposed facing the valve 2, and the opposite side of the reference direction (D) is connected to the suction pipe 21 of the pump 20, and the valve It serves to guide the air delivered from (2) to the pump (20). The pump 20 sucks the guided air through the suction pipe 21.

A tubular suction duct 132 surrounding the suction port 131 and disposed in the inner space 111 of the side portion 11 may be formed on the lower surface 13. As the suction duct 132 communicates with the suction pipe 21 of the pump 20, air sucked from the outside through the suction port 131 is guided to the pump 20, not the inner space 111 of the housing 10 Can be. An annular inner O-ring 92 having elasticity is disposed at the boundary between the suction duct 132 and the suction pipe 21 so that external air does not leak into the inner space of the housing 10 and can be directed to the pump 20. Keep the boundaries confidential.

On the side of the lower surface 13 forming one of the outer surfaces of the housing 10 on the reference direction (D) side, the reference direction (D) surrounds the suction port 131 and is the direction that the side of the reference direction (D) is facing. An annular suction part 133 protruding toward) may be formed. The suction unit 133 may surround the suction space 1332 and may be formed in an annular shape, and the suction port 131 is disposed to be eccentric from the center of the suction unit 133 as illustrated in the suction space 1332 of the disk shape. Can be. The suction part 133 may also be disposed to be eccentric from the center of the lower surface part 13.

The size of the suction part 133 may correspond to the size of the valve inlet 201 of the valve 2. Since the suction part 133 has an outer diameter corresponding to the inner diameter of the valve inlet 201, the suction part 133 may be inserted into the valve inlet 201 and separated from each other.

A suction part groove 1331 is formed on the outer circumferential surface of the suction part 133, so that the external O-ring 91 may be coupled. The outer O-ring 91 may be formed of a material having elasticity and may be disposed to surround the suction part groove 1331. As the outer O-ring 91 is disposed, airtightness can be maintained between the inner circumferential surface of the valve inlet 201 and the outer circumferential surface of the suction unit 133 when the suction unit 133 is inserted into the valve inlet 201.

The lower surface 13 may further include a lower tail 135 extending in a curved shape toward the connection plate 113. As the lower tail 135 extends toward the connection plate 113 in a bent shape, the opening formed at one end of the side portion 11 on the reference direction D side may be covered so that there is no gap.

Pump(20)

The pump 20 is a component that sucks and discharges air from the outside. The pump 20 is accommodated in the housing 10 and may include an electric motor (not shown) that generates a driving force for inhaling and discharging air using electric power, and an operation unit (not shown) for inhaling and discharging air. . The operating part includes a crank connected to an electric motor and a piston compressed or pulled by the crank, and when the piston is pulled by the crank, air is sucked through the inlet 131 connected to the suction pipe 21, and the piston is compressed by the crank. When the air is discharged through the outlet 22, a piston pump 20 may be used. However, the type of the operation part of the pump 20 is not limited thereto, and other types of the structure of the pump 20 may be used as the operation part. The operation unit may be disposed on the side of the reference direction D, and the electric motor may be disposed on the side opposite to the reference direction D.

The pump 20 sucks air using a suction pipe 21 connected to the suction port 131, and discharges the compressed air to the cooling passage 30 through the pump nozzle 24 connected to the discharge port 22. A direction in which air is discharged from the pump 20 through the outlet 22 may be opposite to a direction in which the pump 20 sucks air through the inlet 131. In one embodiment of the present invention, the direction in which the pump 20 discharges air is the reference direction D, and the direction in which the air is sucked is opposite to the reference direction D and are opposite to each other. Since the pump 20 has such a suction and discharge direction, it is possible to prevent the size of the entire air compressor 1 from becoming enlarged.

The suction pipe 21 and the pump nozzle 24 of the pump 20 may be disposed on the side of the pump 20 in the reference direction D. The suction pipe 21 is disposed at an eccentric position from the center of the pump 20, and communicates with the suction duct 132 to receive air from the suction port 131, and the pump nozzle 24 is the pump 20 It is disposed in an area adjacent to the center of ), and air can be discharged to the connected cooling passage 30.

A cooling region, which is a partial region of the outer surface of the pump 20, may be located in a region corresponding to an electric motor, and air guided by the cooling passage 30 is injected into the cooling region. The cooling region may be opened to form pores 23. The pores 23 are holes formed by the electric motor, and are formed to prevent a pressure difference from occurring inside and outside the case of the electric motor. Air enters and exits the motor through the pores 23 and moves in a direction in which the pressure difference disappears.

Cooling flow path (30)

The cooling passage 30 is a component that guides the air discharged from the pump 20 to a cooling area that is a part of the outer surface of the pump 20. The cooling flow path 30 is a flow path formed so that the air discharged from the pump 20 is injected toward the cooling region, and the air discharged from the pump 20 moves to a location adjacent to the cooling region. Accordingly, one end of the cooling passage 30 is in communication with the outlet 22, and the other end may be disposed at a location adjacent to the cooling region.

The cooling flow path 30 may include a direction changing part 31 and a straight part 32. The direction changing part 31 and the straight part 32 are connected to each other to form a cooling passage 30. Including the direction changing portion 31 and the straight portion 32, the cooling passage 30 may be formed as a whole in a'J' shape, but the shape is not limited thereto.

The direction changing part 31 is a component of the cooling passage 30 communicated with the outlet 22 of the pump 20 and formed in a'U' shape. The direction change unit 31 may again include a first direction change unit 311, a second direction change unit 312, and a third direction change unit 313. The first direction change part 311 is in communication with the discharge port 22, and is formed to extend along a direction in which air is discharged from the discharge port 22, and the second direction change part 312 is a first direction change part 311 ) In communication with the first direction changing unit 311 extending in a direction perpendicular to the direction in which the first direction changing unit 311 is extended, and the third direction changing unit 313 being in communication with the second direction changing unit 312 311) may be formed to extend along a direction parallel to the extended direction. Therefore, the first direction change unit 311 and the third direction change unit 313 may extend in a direction opposite to the reference direction D and the reference direction D, respectively, and the second direction change unit 312 is a reference It may extend in one direction perpendicular to the direction D.

As illustrated, the first direction changing part 311 may include a part extending from the pump nozzle 24 in the reference direction D and a part bent toward the second direction changing part 312. The third direction changing part 313 may include a part extending from the tube body 112 in the reference direction D and a part bent toward the second direction changing part 312. The second direction changing part 312 is a part extending in a direction perpendicular to the reference direction D, and toward the first direction changing part 311 and the third direction changing part 313 at both ends of the part, respectively. It may include a bent part. In this way, the curved portion may be included in each direction changing unit 311, 312, and 313 to form a curved overall direction changing unit 31 as shown, but unlike the illustration, each direction changing unit 311, 312 and 313 may be connected to each other including only a straight portion.

Due to the shape of the direction changing part 31, the air may flow in a direction opposite to the direction discharged from the outlet 22 while passing through the direction changing part 31. The direction in which the air discharged from the pump 20 flows is reversed as it passes through the direction change unit 31.

The width of each direction change unit 311, 312, 313 is determined based on a direction perpendicular to the direction in which air flows in each direction change unit 311, 312, 313. Let's say the width of ). The width of the first direction change part 311 and the width of the third direction change part 313 may be formed to be smaller than the width of the second direction change part 312. As the width of the second direction change part 312 is formed larger than the width of the other direction change parts 311 and 313, the intermediate duct constituting the direction change part 31 by the air discharged from the discharge port 22 ( It is possible to reduce the shock received by 41), and to reduce the vibration generated by the air passing along the cooling passage (30).

As described above, the direction change part 31 may be formed surrounded by the intermediate duct 41. The intermediate duct 41 is formed in a'U' shape like the direction change part 31, but has one end coupled to the pump nozzle 24 surrounding the outlet 22, and a housing forming a straight portion 32 The other end is coupled to the tubular part 112 which is a part of (10). The area forming the first direction changing part 311 becomes the first intermediate duct 411, the area forming the second direction changing part 312 becomes the second intermediate duct 412, and the third direction changing The region forming the portion 313 may be the third intermediate duct 413. That is, the first intermediate duct 411 and the pump nozzle 24 are coupled, and the third intermediate duct 413 and the tubular part 112 are coupled. The pump nozzle 24 may be inserted into the first intermediate duct 411, and one end of the tube body 112 on the reference direction D side may be inserted into the third intermediate duct 413.

The intermediate duct 41 may be formed of a material containing silicon. As the intermediate duct 41 is formed of a material containing silicon, vibrations generated by air passing through the direction changing unit 31 may be reduced.

The straight portion 32 communicates with the direction change portion 31 and extends to a location adjacent to the cooling region. The straight portion 32 may extend along the reference direction D. The straight portion 32 may be formed by being surrounded by the tubular portion 112 of the housing 10. That is, the straight portion 32 is in a state in which its relative position with respect to the housing 10 is always fixed.

One end on the reference direction (D) side of the tubular portion 112 forming one end on the reference direction (D) side of the straight portion 32 is connected to the third direction changing portion 313, and the reference direction of the straight portion 32 One end on the reference direction (D) side of the tubular portion 112 forming the opposite end of (D) may be connected to a cooling nozzle 42 to be described later. Accordingly, the air discharged from the pump 20 is transmitted to the straight portion 32 through the direction changing portion 31, and the straight portion 32 can inject it into the cooling area of the pump 20.

8 is a perspective view showing the cooling nozzle 42 of the air compressor 1 according to an embodiment of the present invention. 9 is a perspective view showing the cooling nozzle 42 of the air compressor 1 according to an embodiment of the present invention from a different angle. The cooling nozzle 42 will be described with reference to FIGS. 1 to 4 and FIGS. 8 and 9.

The cooling nozzle 42 is a component for discharging air to the cooling area of the pump 20. Therefore, the cooling nozzle 42 is disposed at the other end of the cooling flow path 30 and is formed to be opened toward the outer surface of the pump 20 so that air can be discharged.

The cooling nozzle 42 may include a coupling hole 424 into which one end opposite to the reference direction D of the tube body 112 can be inserted, and a nozzle opening through which air delivered through the cooling passage 30 is discharged. (421) may be included.

As shown, the nozzle opening 421 may be formed in a shape corresponding to the shape of the pore 23 formed by opening the motor in the cooling region, and the number is also a number corresponding to the number of pores 23 It may be formed, and may be disposed opposite to the pores 23. The air discharged from the pump 20 is supplied to the motor to cool the motor. Accordingly, in an exemplary embodiment of the present invention, since there are two pores 23 of the electric motor, the nozzle openings 421 are also formed in two, but the number is not limited thereto.

The nozzle opening 421 is opened in a direction perpendicular to the reference direction D as shown, and can be sprayed into the cooling region. In addition, when two nozzle openings 421 are provided, each nozzle opening 421 may be opened toward a direction not parallel to each other.

The nozzle opening 421 may be opened in a form extending along the reference direction D from a region adjacent to one end of the cooling nozzle 42 opposite the reference direction D. Accordingly, the nozzle opening 421 may be formed in the shape of a long hole having an elongated shape along the reference direction D.

Since the cooling nozzle 42 receives the air compressed and discharged by the pump 20 and sprays it into the pump 20 in a state where the flow rate is increased through the nozzle opening 421 narrower than the cooling passage 30, the pump 20 Electric motor can be cooled effectively. In addition, since air is discharged into the wide inner space 111 after passing through the nozzle opening 421, the adiabatic expansion of air occurs, and the air delivered to the pump 20 is lower than when flowing through the cooling passage 30. By having a temperature, the electric motor of the pump 20 can be effectively cooled.

At one end of the cooling nozzle 42 on the reference direction D side, a flange 422 protruding in a direction perpendicular to the reference direction D may be formed. The flange 422 may contact the inner surface of the side portion 11 to prevent the cooling nozzle 42 from deviating in a direction perpendicular to the reference direction D.

An engaging portion 423 may be formed at one end of the cooling nozzle 42 opposite to the reference direction D. The engaging portion 121 is inserted into the engaging portion 423, and may contact the outer surface of the cooling nozzle 42 as described above. As shown, the engaging portion 423 is divided into two branches so that the locking portion 121 can be inserted, and thus, may have a locking groove in the center. The locking portion 121 is inserted into the locking groove formed by the locking engaging portion 423, so that the cooling nozzle 42 may be pressed by the locking portion 121 so that the cooling nozzle 42 does not deviate to another position.

A jam formed between the engaging portion 423 divided into two branches toward the direction in which the locking portion 121 is inserted so that the locking portion 121 can be easily inserted into the locking groove in a direction perpendicular to the reference direction D The width of the groove can be reduced.

A nozzle O-ring (not shown) having elasticity may be disposed at the boundary between the cooling nozzle 42 and the tube body 112 so as to maintain the airtightness of the boundary between the cooling nozzle 42 and the tube body 112. have. The nozzle O-ring may block the boundary between the cooling nozzle 42 and the tube body 112 while simultaneously contacting the cooling nozzle 42 and the tube body 112.

Control unit (60)

The controller 60 is a component that supplies electrical signals and power for controlling the components of the air compressor 1 according to an embodiment of the present invention to each component. Accordingly, the control unit 60 is electrically connected to each of the components requiring electrical control of the present invention.

The control unit 60 may include a substrate 61. The substrate 61 may be composed of a printed circuit board (PCB), etc., and a memory for storing a control command, a memory for storing a control command, and a logical operation are received in the board 61, and a control signal is transmitted to each component. A microprocessor or the like, which is a computing device to perform, may be mounted.

The operation device included in the control unit 60 may control the pump 20 to stop after the pump 20 operates for a predetermined time. In addition, when the air compressor 1 according to an embodiment of the present invention further has a pressure acquiring means capable of acquiring pressure in an area adjacent to the inlet 131, the pressure acquiring means and the control unit 60 are electrically connected. Based on the obtained pressure, the pump 20 may be controlled so that the pump 20 operates only below a predetermined pressure.

The control unit 60 may include a power connector 63. The power connector 63 is a connector connected to an external power source (not shown) in order to apply power to the control unit 60. The power connector 63 may be disposed through the power opening 114 formed in the side portion 11. One end of the power connector 63 disposed facing the outside is electrically connected to an external power source, and the other region of the power connector 63 is electrically connected to the substrate 61. The power connector 63 may be a USB (Universal Serial Bus) type connector, but other types of connection terminals capable of applying power may be used as the power connector 63.

The control unit 60 may include a light emitter. The luminous body is accommodated in the inner space 111 of the housing 10, receives power, and can be controlled to be turned on when the pump 20 is operated. The luminous body may be a Light Emitting Diode (LED), but the type is not limited thereto. A plurality of light emitters are disposed along a circumference centered on the center of the substrate 61 and may be electrically connected to the substrate 61.

The control unit 60 may include a switch 62. The switch 62 is a component that determines whether the pump 20 is operated as it is selected or deselected, and may be selected or deselected by being pressed by a button unit 50 to be described later. When the switch 62 is selected, power is applied to the pump 20 so that the pump 20 can be operated, and when the switch 62 is released, the power applied to the pump 20 is cut off and the pump 20 Stops working.

The switch 62 is mounted on the substrate 61, but may be mounted on a side opposite to the reference direction D of the substrate 61. Accordingly, when the button portion 50 exposed to the outside from the upper surface portion 14 of the housing 10 is pressed in the reference direction D, the switch 62 can be pressed.

Button part 50

The button unit 50 is a component that is pressed to select or release the switch 62 by pressing the switch 62. The button part 50 may include a button 51, a frame 52, and a connection part 53.

The button 51 is a component that is exposed to the outside of the housing 10 so that the switch 62 can be pressed by moving by being pressed by the user. The button 51 is formed in a disk shape to be suitable for the user to press, but the reference direction (D) side of the button 51 is in contact with the switch 62 to ensure that the switch 62 is pressed. It may be formed to correspond to the shape.

The user may press the button 51 exposed to the outside through the center hole 141 of the upper surface in the reference direction D. The button 51 moves in the reference direction D to press the switch 62, and the switch 62 is selected or deselected.

The frame 52 is an annular component connected to the housing 10 and surrounds the button 51 and is disposed spaced apart from the button 51. The connection part 53 connects the frame 52 and the button 51. When the external force for pressing the button 51 by the user disappears after the button 51 is pressed by the user, the connector 53 is separated from the switch 62 in the opposite direction of the reference direction (D). A restoring force is applied to the button 51. The connecting portions 53 provided in plurality may be arranged to be spaced apart from each other along the circumference of the button 51. The connection part 53 may have a shape bent in an'L' shape as shown, but the shape is not limited thereto.

Optical member (80)

The optical member 80 is a component that is disposed adjacent to the luminous body and exposed to the outside of the housing 10, and receives the light emitted by the luminous body, scatters and sends it to the outside. Among the side surfaces of the optical member 80, the side facing the reference direction D has an uneven optical pattern, and receives and scatters light emitted by the luminous body. The outer side of the side opposite to the reference direction D of the optical member 80 is covered by the upper surface 14 and the inner side is exposed to the outside of the housing 10. Therefore, light incident on the side of the reference direction (D) of the optical member 80 located in the inner space 111 of the housing 10 is scattered while passing through the optical member 80 in the direction opposite to the reference direction (D). Then, the optical member 80 spreads to the opposite side of the reference direction D.

Since the optical member 80 scatters the light emitted by the luminous body, even if a small number of luminous bodies are disposed, subtle light is emitted over the entire optical member 80 so that it can be observed from the outside.

The optical member 80 is formed in an annular shape surrounding the button 51 and has an optical member center hole 81 at the center, and the button 51 may pass through the optical member center hole 81.

The optical member 80 may be supported by the fixing plate 70. The fixing plate 70 is a component that allows the optical member 80 to be disposed adjacent to one end of the housing 10 opposite the reference direction D, without directly contacting the substrate 61. The fixing plate 70 is formed in an annular shape, and may have a fixing plate central hole 71 through which the button 51 passes. The optical member 80 may be seated on a side opposite to the reference direction D of the annular fixing plate 70.

The fixing plate 70 may further include a fixing plate tail 72 extending in a curved shape toward the connection plate 113. As the fixing plate tail 72 extends toward the connection plate 113 in a bent shape, the opening formed at one end of the side portion 11 opposite the reference direction D may be covered so that there is no gap.

The substrate 61, the fixing plate 70, and the button unit 50 may all be formed in an annular shape or include an annular member, and a fastener 93 such as a bolt or screw may be connected along the circumference of the annular portion. Each of the fastening portions may be formed. The substrate fastening part 611, the fixing plate fastening part 701, and the button fastening part 521 may be arranged in parallel with the support 115 of the housing 10 along the reference direction D, and the same fastener ( 93) can be fastened simultaneously. For example, when one substrate fastening part 611, one fixing plate fastening part 701, one button fastening part 521, and one support 115 are arranged side by side along the reference direction D , One bolt may simultaneously fasten and fix the above-described fastening parts and the support 115. The substrate fastening part 611, the fixing plate fastening part 701, and the button fastening part 521 may be configured in plural.

Valve(2)

The valve 2 is configured to allow or block the entry of air into or out of the compression pack 3. Therefore, the valve 2 is installed in the compression pack 3.

The valve 2 may include a valve inlet 201, a valve plate 202 and a valve body 204. The valve inlet 201 and the valve plate 202 may be exposed to the outside of the compression pack 3, and the valve body 204 may be disposed through the compression pack 3.

The valve inlet 201 is formed in an annular shape, and is formed so that the suction part 133 of the air compressor 1 is inserted into the inside. Air may be introduced or discharged into or out of the compression pack 3 through the valve inlet 201.

The valve plate 202 moves in a direction opposite to the reference direction D by the negative pressure when negative pressure is formed outside of the compression pack 3 by the action of the air compressor 1 coupled to the valve inlet 201 This is a component that opens the valve 2. As the valve plate 202 moves in a direction opposite to the reference direction D, the valve 2 opens, so that the air in the compression pack 3 can be sucked by the air compressor 1. When the negative pressure disappears, the valve plate 202 moves in the reference direction D and closes the valve 2 so that the air located inside the compression pack 3 does not escape to the outside.

The valve body 204 provides a space in which the valve plate 202 can move so that the valve plate 202 moves in a direction opposite to the reference direction D, but does not escape to the outside of the valve body 204, and , It is a component provided with a radial air guide portion 203 that can well suck in air from the inside of the compression pack (3).

Compression method

10 is a view showing a state in which the air compressor 1 according to an embodiment of the present invention is connected to the valve 2 formed in the compression pack 3.

The air compressor 1 according to an embodiment of the present invention is moved in the reference direction D in the state of FIG. 1 so that the suction part 133 is inserted into the valve inlet 201. An external O-ring 91 maintains airtightness between the suction part 133 and the valve inlet 201.

When an external power source is connected to the power connector 63 and the user presses the button 51 to select the switch 62, the control unit 60 applies power to the pump 20 so that the pump 20 operates. do. The air remaining inside the pump 20 is discharged by the operation of the pump 20, and a negative pressure is formed on the opposite side of the reference direction (D) of the valve plate 202, and the valve plate 202 is referenced by the pressure difference. It moves in the opposite direction of direction (D). The valve 2 is opened by the movement of the valve plate 202, and air in the compression pack 3 is discharged to the outside of the valve 2 due to a pressure difference. The air inside the compression pack 3 is discharged, and the compression pack 3 contracts. According to the contraction of the compression pack 3, an object located inside the compression pack 3 may be compressed.

The discharged air is sucked through the inlet 131 and directed to the pump 20. The pump 20 discharges the sucked air into the cooling flow path 30 through the discharge port 22. The air discharged from the pump 20 is directed to the cooling nozzle 42 through the direction changing part 31 and the straight part 32 of the cooling flow path 30, and the cooling nozzle 42 transfers the received air to the pump 20 ) To the cooling area located on the outer surface of

Air injected by the cooling nozzle 42 may be introduced into the pores 23 located in the cooling area, and the injected air may also pass through other cooling areas. The electric motor can be cooled by the injected air, and as the electric motor cools, the time that the electric motor can be used continuously increases.

When it is determined that the internal pressure of the compression pack 3 has reached a certain pressure, or when it is determined that a predetermined time has passed after the air compressor 1 has started to operate by selection of the switch 62, the pump Control to stop the operation of (20) can be performed. After the operation of the air compressor 1 is stopped, the user can disengage the air compressor 1 from the valve 2 in a direction opposite to the reference direction D. The valve 2 maintains a state in which the valve 2 is closed since there is no longer an air compressor 1 to provide negative pressure to the outside based on the valve plate 202. When the valve 2 is closed, the inside of the compression pack 3 can be maintained in a vacuum or low pressure packaged state.

In the above, even if all the constituent elements constituting the embodiments of the present invention are described as being combined into one or operating in combination, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all of the constituent elements may be selectively combined and operated in one or more. In addition, terms such as "include", "consist of" or "have" described above mean that the corresponding component may be present unless otherwise stated, excluding other components Rather, it should be interpreted as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art, unless otherwise defined. Terms generally used, such as terms defined in the dictionary, should be interpreted as being consistent with the meaning of the context of the related technology, and are not interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

1: air compressor 2: valve
3: compression pack 10: housing
11: side part 12: decorative part
13: lower 14: upper surface
20: pump 21: suction pipe
22: outlet 23: pore
24: pump nozzle 30: cooling flow path
31: direction switching part 32: straight part
41: intermediate duct 42: cooling nozzle
50: button part 51: button
52: frame 53: connection
60: control unit 61: substrate
62: switch 63: power connector
70: fixing plate 71: fixing plate center hole
72: fixed plate tail 80: optical member
81: optical member center hole 91: external O-ring
92: inner O-ring 93: fastener
111: inner space 112: tube body
113: connection plate 114: power supply opening
115: support 116: intermediate support
117: protrusion 121: locking portion
131: suction port 132: suction duct
133: suction part 135: lower side tail
141: upper surface central hole 201: valve inlet
202: valve plate 203: air guide
204: valve body 311: first direction switching unit
312: second direction change unit 313: third direction change unit
411: first intermediate duct 412: second intermediate duct
413: third intermediate duct 421: nozzle opening
422: flange 423: engaging portion
424: coupling hole 521: button fastening part
611: board fastening part 701: fixing plate fastening part
1121: One end of the tube body in the reference direction
1122: The other end on the opposite side in the reference direction of the pipe body
1131: decorative portion coupling groove 1331: suction portion groove
1332: suction space D: reference direction

Claims (17)

housing;
A pump that is accommodated in the housing and sucks air from outside through a suction port formed in the housing;
One end is formed in the pump and communicates with an outlet for discharging the air so that the air discharged from the pump is injected toward a cooling area that is a part of the outer surface of the pump, and the other end is disposed at a location adjacent to the cooling area. A cooling passage for guiding the air discharged from the pump toward the cooling region; And
A cooling nozzle disposed at the other end of the cooling passage and opened toward an outer surface of the pump so that the air is discharged,
The housing includes a locking portion contacting an outer surface of the cooling nozzle to prevent the cooling nozzle from being separated from the cooling passage. The method of claim 1,
A direction in which air is discharged from the pump is opposite to a direction in which the pump sucks air through the suction port. The method of claim 1,
The cooling passage is formed in the pump and communicates with an outlet for discharging air, and a direction changer formed in a'U'shape; And
Doedoe communicating with the direction change portion, and including a straight portion extending to a location adjacent to the cooling region,
A direction in which the air discharged from the pump flows is reversed as it passes through the direction changer. The method of claim 3,
The straight portion is formed by being surrounded by the housing, the air compressor. The method of claim 3,
The direction changing part is formed surrounded by an intermediate duct formed in a'U' shape. The method of claim 3,
An intermediate duct formed in a'U' shape, one end is coupled to a pump nozzle formed on the pump and formed by enclosing an outlet for discharging air, and the other end is coupled to a portion of the housing forming the straight portion. Including more,
The direction change unit is formed surrounded by the intermediate duct, the air compressor. The method of claim 5,
The intermediate duct is formed of silicon, an air compressor. The method of claim 3,
The direction change unit,
A first direction changer formed in the pump and communicated with an outlet for discharging air, and extending along a direction in which air is discharged from the outlet;
A second direction changing unit in communication with the first direction changing unit and extending in a direction perpendicular to a direction in which the first direction changing unit is extended; And
And a third direction changing part in communication with the second direction changing part, which extends in a direction opposite to the direction in which the first direction changing part was extended, so that the air flows in a direction opposite to a direction discharged from the outlet But,
When the width of each direction change part is the width of each direction change part based on a direction perpendicular to a direction in which air flows in each direction change part, the width of the first direction change part and the width of the third direction change part Is smaller than the width of the second direction changing part, the air compressor. delete The method of claim 1,
The pump includes an electric motor that generates a driving force for inhaling and discharging the air using electric power,
The cooling nozzle is formed in a shape corresponding to a shape of a pore formed by opening the motor in the cooling region, and is disposed to face the pore.
delete The method of claim 1,
The housing includes an upper surface portion, a lower surface portion disposed to be spaced apart from the upper surface portion to face the upper surface portion, and a side portion connecting the upper surface portion and the lower surface portion,
The air compressor, wherein the suction port is formed at a location distal from the center of the lower surface portion. The method of claim 1,
An air compressor having an annular suction part protruding toward a direction facing the one surface and surrounding the suction port on one surface of the housing on which the suction port is formed. The method of claim 13,
An air compressor formed of a material having elasticity and further comprising an outer O-ring surrounding an outer peripheral surface of the suction unit. The method of claim 1,
A switch controlling whether or not the pump is operated; And
A button exposed to the outside of the housing so as to move by being pressed to press the switch, a frame connected to the housing, and a connection part that acts on the button so that the button is spaced apart from the switch. Air compressor further comprising a button portion provided. The method of claim 15,
The frame is disposed surrounding the button and spaced apart from the button,
The connecting portions provided in plurality are arranged to be spaced apart from each other along the circumference of the button. The method of claim 1,
A light-emitting body accommodated in the housing and turned on when the pump is operated; And
The air compressor further comprises an optical member disposed adjacent to the luminous body and exposed to the outside of the housing, receiving light emitted from the luminous body, scattering it, and sending it to the outside.

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