KR20200034454A - A compressor and electronic device using the same - Google Patents

Abstract

Disclosed is a compressor having a plurality of discharge ports and discharge valves arranged at each discharge port. The compressor comprises: a compression cylinder having the plurality of discharge ports for discharging compressed gas formed in a predetermined direction; and the plurality of discharge valves provided at the plurality of discharge ports to adjust the amount of discharged gas. Each discharge valve comprises: a valve neck formed in a plate shape having elasticity, having one fixed end, and extending in the arrangement direction of the plurality of discharge ports from the one end; and a valve head provided at the other end of the valve neck to cover each discharge port. According to the present invention, the compressor is configured to reduce an occupation area occupied by the plurality of discharge valves to enable the compressor to be compact, and to reduce manufacturing costs and maintenance costs.

Description

Compressor and electronic device using the same {A COMPRESSOR AND ELECTRONIC DEVICE USING THE SAME}

The present invention relates to an electronic device using a compressor such as an air conditioner, a refrigerator, and a freezer, and more particularly, a compressor having a plurality of discharge valves applied to multiple discharge ports.

A compressor is a mechanical device that increases pressure by compressing a gas, and is divided into a reciprocating compressor and a rotating compressor according to the operating principle. The reciprocating compressor is a method of converting the rotational motion of a motor into a linear reciprocating motion of a piston in a cylinder through a crankshaft and a connecting rod to suck and compress gas. The rotary compressor is a rotary compressor that inhales and compresses gas while the roller rotates in the cylinder by the rotational motion of the motor and the rotating scroll orbiting in a certain direction from the center of the fixed scroll (Scroll) by the rotational motion of the motor. There is a scroll compressor that continuously sucks and compresses gas. Conventional compressors have one discharge hole and a discharge valve optimized for the operating speed (rpm) of the displacement in the cylinder.

The constant speed compressor needs to enlarge the size of the discharge hole in order to secure the flow rate of the discharge refrigerant and reduce the flow resistance. The enlargement of the size of the discharge hole increases the dead volume and the size of the discharge valve. An increase in the insoluble volume causes a decrease in cooling power, and an increase in the size of the discharge valve increases the noise due to an increase in the amount of impact and impairs reliability.

Variable compressors degrade compression efficiency when they fall outside a specific area where peak efficiency occurs at a wide operating speed. When considering the compression efficiency aspect, the variable compressor is advantageous in low speed operation, but in high speed operation, it is advantageous to enlarge the discharge hole. As a result, the width of overcompression is increased according to the behavior of the discharge valve, thereby reducing the compression efficiency.

In order to solve the problems of the single discharge port and the discharge valve, a compressor employing a plurality of discharge holes and a discharge valve has been disclosed. However, such a plurality of discharge holes and discharge valves are an obstacle to the compactness of the compressor due to the increase in the occupied area. In addition, individually installing a plurality of discharge valves corresponding to a plurality of discharge holes causes an increase in manufacturing cost and inconvenience of maintenance.

Accordingly, an object of the present invention is to provide a compact compressor and electronic equipment using the same.

Accordingly, an object of the present invention is to provide a compressor and an electronic device using the same, which can improve production cost, parts management, and assembly.

A compressor for achieving the above object is provided. The compressor includes a compression cylinder in which a plurality of discharge ports for discharging compressed gas are provided in a predetermined direction, and a plurality of discharge valves provided in the plurality of discharge ports to control the amount of gas discharged, and each discharge valve has elasticity. It includes a valve head fixed at one end in a plate shape and extending from the one end along the arrangement direction of the plurality of discharge ports, and a valve head provided to cover each discharge port at the other end of the valve neck. The compressor of the present invention can reduce the occupied area occupied by the plurality of discharge valves, thereby enabling compaction of the compressor and reducing manufacturing and maintenance costs.

At least one valve neck of the plurality of discharge valves may extend and surround at least a portion of the other discharge valves, thereby reducing the area occupied by the plurality of discharge valves.

The plurality of discharge valves can be sequentially opened to prevent overcompression of the gas.

The plurality of valve necks may be integrally configured to integrally support the plurality of discharge valves.

The valve stopper of the compressor that limits the deformation of the plurality of discharge valves extends along the arrangement direction of the plurality of discharge ports to cover the plurality of discharge valves, thereby reducing manufacturing and maintenance costs.

The valve keeper of the compressor that limits the maximum deformation of the plurality of discharge valves can reduce manufacturing and maintenance costs by extending along the arrangement direction of the plurality of discharge ports to cover all of the plurality of discharge valves.

At least one of the plurality of discharge valves is provided in another discharge valve to reduce the area occupied by the plurality of discharge valves.

The plurality of discharge ports are arranged in the linear direction, and the plurality of discharge valves extend in a straight line along the linear direction, thereby reducing the area occupied by the plurality of discharge valves.

The plurality of discharge ports are arranged in a circumferential direction of a predetermined curvature, and the plurality of discharge valves may extend along the circumferential direction to reduce the area occupied by the plurality of discharge valves.

The plurality of discharge ports can be easily adjusted by discharging the gas by different diameters.

In another embodiment of the present invention, the compressor includes a plurality of discharge cylinders provided in a predetermined direction, and a plurality of discharge valves provided in the plurality of discharge ports and the plurality of discharge valves to discharge the compressed gas. It includes a valve keeper extending along the arrangement direction of the discharge port and preventing deformation of the plurality of discharge valves.

Compressor according to another embodiment of the present invention, a cylinder forming a compression space for compressing a gas and a compression cylinder having a valve plate provided with a plurality of discharge ports for discharging the compressed gas in a predetermined direction, and the plurality of discharge ports And a plurality of discharge valves having a plurality of valve heads provided in the plurality of valve heads and a plurality of valve necks perpendicular to the arrangement direction of the plurality of discharge ports and extending toward a point on a line passing through the centers of the outermost both discharge ports. At least one of the plurality of valve necks extends to gradually narrow toward the one point.

The angle between the two adjacent valve necks can be set to 15 degrees or less.

The plurality of discharge ports may have a sum of inner diameters of 39% or less of the inner diameters of the cylinders.

In an electronic device having a compressor in an embodiment of the present invention, the compressor is provided with a plurality of discharge ports for discharging compressed gas in a predetermined direction and a plurality of discharge ports for controlling the amount of gas discharged. The discharge valve includes a plurality of discharge valves, one end of which is fixed to a plate having elasticity, and the valve neck extending from the one end along the arrangement direction of the plurality of discharge ports and the other end of each of the valve necks. It includes a valve head provided to cover the.

According to the present invention, a compact compressor can be provided by reducing the area occupied by the plurality of discharge valves while effectively controlling the discharge amount of the compressor body through the plurality of discharge ports and the discharge valves.

In addition, in the compressor of the present invention, since a plurality of discharge valves can be manufactured in a small size and a single type, it is possible to reduce production cost and improve parts management and assembly.

1 is a perspective view showing a compressor according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the compressor with the container removed in FIG. 1.
3 is a cross-sectional view taken along line AA of FIG. 2.
4 and 5 are schematic diagrams for explaining the gas compression process in the cylinder block of the reciprocating compressor.
6 is an exploded perspective view of the cylinder block in FIG. 2.
7 is a plan view showing a discharge valve unit according to a first embodiment of the present invention.
8 is a view showing an operation state of the discharge valve unit according to the first embodiment of the present invention.
9 is a plan view showing a state in which the discharge valve unit of 7 is applied to a cylinder.
10 to 12 are graphs showing peak discharge pressure for each operation area.
13 is a plan view showing a discharge valve unit of a compressor according to a second embodiment of the present invention.
14 is a plan view showing a discharge valve unit of a compressor according to a third embodiment of the present invention.
15 is a plan view showing a discharge valve unit of a compressor according to a fourth embodiment of the present invention.
Fig. 16 is a plan view showing the inner diameter of the compressed space of the cylinder of the present invention and the plurality of discharge ports.

Hereinafter, with reference to the accompanying drawings, this document will be described in detail with respect to the compressor (1) used in electronic devices such as air conditioners, refrigerators, freezers. The embodiments described below describe the hermetic reciprocating compressor 1 to help understanding of the disclosure, but this is exemplary, and may be implemented in various modifications, such as a rotary compressor or a scroll compressor, unlike the embodiments described herein. This should be understood. However, in the following description of the present invention, when it is determined that a detailed description of related known functions or components may unnecessarily obscure the subject matter of the present invention, the detailed description and specific illustration will be omitted.

1 is a perspective view showing a hermetic reciprocating compressor 1 according to a first embodiment of the present invention. The hermetic reciprocating compressor 1 according to the first embodiment of the present invention is accommodated in a sealed state in the inner space of the container 2. The container 2 is configured by combining the upper container 2-1 and the lower container 2-2 in a state in which the compressor 1 is accommodated.

FIG. 2 is a perspective view showing the compressor 1 in FIG. 1, and FIG. 3 is a cross-sectional view taken along line A-A in FIG. 2.

2 and 3, the compressor 1 includes a motor 10 and a cylinder block 20.

The motor 10 includes a rotor 12, a stator 14 and a rotating shaft 16 coupled to the rotor 12. The rotating shaft 16 includes a motor central shaft portion 16-1 and an eccentric shaft portion 16-2. One end of the connecting rod 18 is coupled to the eccentric shaft portion 16-2. The other end of the connecting rod 18 is coupled to the piston 22 inserted into the compression space PS of the cylinder 21. The connecting rod 18 converts the rotational motion of the rotor 12 into a linear reciprocating motion of the piston 22 disposed in the compression space PS.

The cylinder block 10 includes a cylinder 21 provided with a cylindrical compression space PS therein, a piston 22 inserted in the compression space PS, a valve plate 23 provided on one side of the cylinder 21, and the outside From the gas, for example, includes a gas suction unit (24) for sucking the refrigerant and a gas discharge unit (25) for discharging the compressed body compressed in the cylinder (21).

4 and 5 are schematic diagrams for explaining the gas compression process in the cylinder block 20 of the reciprocating compressor 1. The cylinder block 20 is inserted into the cylindrical compression space PS so that the piston 22 can reciprocate. The valve plate 23 is coupled to one side of the cylinder 21. The valve plate 23 includes a suction port 232 for sucking gas and a discharge port 233 for discharging gas. The valve plate 23 includes a suction valve 32 that blocks the suction port 232 on the inner surface of the compressed space PS and a discharge valve 44 that blocks the discharge port 233 on the outer surface of the compressed space PS. The suction valve 32 and the discharge valve 44 are made of a plate material having elasticity. The suction valve 32 and the discharge valve 44 have one side fixed and the other side free end.

In FIG. 4, when the piston 22 is retracted in the cylinder 21, the suction valve 32 that is blocking the suction port 232 located on the inner surface of the valve plate 23 by the suction force is elastically deformed and opened. As a result, the gas is sucked through the intake port 232 to fill the compressed space PS. At this time, the discharge valve 44 blocking the discharge port 233 located on the outer surface of the valve plate 23 closes the discharge port 233 by suction force.

In FIG. 5, when the piston 22 is advanced in the cylinder 21, the gas in the compression space PS is compressed. By this compression force, the discharge valve 44 that is blocking the discharge port 233 located on the outer surface of the valve plate 23 is deformed and opened. As a result, the gas is discharged to the gas discharge unit 25 through the discharge port 233. At this time, the suction valve 32 that is blocking the suction port 232 closes the suction port 232 by compression force.

6 is an exploded perspective view showing the cylinder block 20 of the compressor 1 according to the embodiment of the present invention.

As shown in FIG. 6, the cylinder block 20 is a cylinder 21 having a cylindrical compression space PS in the center, a piston 22 inserted into the compression space PS of the cylinder 21, and a cylinder 21 It includes a valve plate 23 coupled to one surface of the, the gas suction unit 24 for sucking the gas, the gas discharge unit 25 for discharging the gas. In addition, the cylinder block 20 corresponds to three discharge ports 233, 234, and 235 on the outer surface of the intake valve unit 30 and the valve plate 23 disposed on the inner surface of the valve plate 23 on the cylinder 21 side. The discharge valve unit 40 includes a valve stopper 50 covering the discharge valve unit 40 and a valve keeper 60 covering the valve stopper 50.

The cylinder 21 is formed in a substantially hexahedral shape with a cylindrical compressed space PS penetrating through the center.

The piston 22 is inserted in the cylindrical compression space PS of the cylinder 21 so as to be able to move back and forth. The piston 22 has a connecting rod (18 in FIG. 3) coupled to the rear of the cylinder 21.

The valve plate 23 is coupled to the front of the cylinder 21. The valve plate 23 is provided with one suction port 232 and first to third discharge ports 233, 234 and 235 communicating with the compression space PS. The valve plate 23 includes a first bolt hole 236 for fastening the first bolt 66 and a second bolt hole 237 for fastening the second bolt 67. The first bolt 66 engages one end of the discharge valve unit 40, the valve stopper 50, and the valve keeper 60. The second bolt 67 is fastened to the second bolt hole 237 to fix the other end of the valve keeper 60.

The gas suction unit 24 is a gas suction pipe 244 for transferring the gas that has passed through the suction muffler 242 and the suction muffler 242 to the suction port 232 of the valve plate 23 to reduce noise caused by the suction of the gas It includes. The suction muffler 24 includes a connection passage (not shown) connecting a plurality of extensions (not shown) and a plurality of extensions in a narrow width therein.

The gas discharge unit 25 has a predetermined space therein and is coupled to the valve plate 23. The gas discharge unit 25 includes a discharge muffler (not shown) having a structure similar to the suction muffler 24 described above in a predetermined space.

The suction valve unit 30 is a plate material having a size of elasticity corresponding to one surface of the cylinder 21, and is provided with a suction valve 32 and three discharge gas passage holes 33, 34 and 35. It has a valve head 322 which blocks the inlet 232 of the valve plate 23 to be described later and a valve neck 324 extending integrally from the valve head 322. The valve neck 324 has an opposite end of the valve head 322 integrally connected to a plate-shaped suction valve unit 30. That is, the suction valve 32 may be formed by punching or shearing in the shape of a suction valve in the plate-shaped suction valve unit 30. Of course, the suction valve 32 may be separately manufactured instead of punching or shearing, and fixed to the valve plate 23.

The discharge valve unit 40 includes first to third discharge valves 42, 43 and 44 integrally extending from the fixed end 41 and the fixed end 41 on one side. The first to third discharge valves 42, 43 and 44 open and close the first to third discharge ports 233, 234 and 235 of the valve plate 23, respectively. Each of the first to third discharge valves 42, 43, and 44 is fixed at one side and free at the other. Accordingly, the first to third discharge valves 42, 43, and 44 respectively block the first to third discharge ports 233, 234, 235, and then, when the gas compression force of the compression space PS reaches a predetermined range, each free end It is elastically deformed and opened sequentially. The discharge valve unit 40 is provided with a pair of first bolt passing holes 46 through which a pair of first bolts 66 pass at a fixed end. The first bolt passing hole 46 corresponds to the first bolt hole 236 of the valve plate 23.

The valve stopper 50 is disposed to cover the first to third discharge ports 233, 234 and 235. The valve stopper 50 includes a stopper body 52, a fixed end 53 located at one end of the stopper body 52, and a free end 54 located at the other end. The stopper body 52 is bent upward at a predetermined angle from the fixed end 53 to the free end 54. As a result, even if the first to third discharge valves 42, 43, 44 are deformed, deformation is limited by the stopper body 52 of the valve stopper 50. The valve stopper 50 is provided with a pair of second bolt holes 56 through which a pair of first bolts 66 pass to the fixed end 53. The second bolt passing hole 56 corresponds to the first bolt passing hole 46 of the discharge valve unit 40 and the first bolt hole 236 of the valve plate 23.

The valve keeper 60 is arranged to cover the valve stopper 50. The valve keeper 60 includes a keeper body 62, a first fixed end portion 63 located at one end of the keeper body 62, and a second fixed end portion 64 located at the other end. The keeper body 62 is bent to be inclined upward from the first fixed end portion 83 and then bent downward at the end. The valve keeper 60 restricts the valve stopper 50 from being deformed more than a predetermined angle, and prevents excessive deformation of the first to third discharge valves 42, 43, 44 and the valve stopper 50. A pair of first bolts 66 are fastened to the first fixed end portion 63. A second fixing bolt is fixed to the second fixing end portion 64. The first fixing bolt 66 sequentially passes through the second bolt passing hole 56 of the valve stopper 50 and the first bolt passing hole 46 of the discharge valve unit 40, and then the valve plate 23 of the valve plate 23 is passed. It is fastened to the first bolt hole (237). The second fixing bolt 67 is fastened to the second bolt hole 237 of the valve plate 23.

7 is a plan view showing the discharge valve unit 40 according to the first embodiment of the present invention. As shown, the discharge valve unit 40 includes first to third discharge valves 42, 43 and 44 disposed on the same plane. The first to third discharge valves 42, 43, and 44 are integrally connected to a fixed end 41 of a single body. As a modified embodiment, the first to third discharge valves 42, 43 and 44 may be provided with separate fixed ends. The discharge valve unit 40 is not limited to three discharge valves, and may include two or more than four discharge valves.

The first discharge valve 42 covers the first space 45 between the circular first valve head 422 and the first valve head 422 that cover the first discharge port 233 of the valve plate 23. And a first valve neck 423 branched in two and extended to the fixed end 41.

The second discharge valve 43 is accommodated in the first space portion 45. The second discharge valve 43 covers the second space 48 between the circular second valve head 432 and the second valve head 432 that cover the second discharge port 234 of the valve plate 23. And a second valve neck 433 branched in two and extended to the fixed end 41.

The third discharge valve 44 is accommodated in the second space portion 48. The third discharge valve 44 extends straight from the circular third valve head 442 and the third valve head 442 covering the third discharge port 235 of the valve plate 23 to the fixed end 41. It includes a third valve neck (443).

As described above, the first valve neck 423 of the first discharge valve 42 extends around the second discharge valve 43, and the second valve neck 433 of the second discharge valve 43 is first 3 extends around the discharge valve (44).

The first to third discharge valves 42, 43 and 44 are not limited to the form shown in FIG. 7 and various modifications can be made within the scope of the present invention. For example, the first discharge valve 42 accommodates the second discharge valve 43 within the same plane, and the third discharge valve 44 is separated from the first and second discharge valves 42 and 43. Can be designed.

8 is a view showing the open state of the first to third discharge valves (42,43,44). As illustrated, the first discharge valve 42 is opened to a height of about 2.7 mm, the second discharge valve 43 is opened to a height of about 1.6 mm, and the third discharge valve 44 is about 0.7 mm. It is opened sequentially to the height of. As such, the first to third discharge valves 42, 43 and 44 may be sequentially opened due to differences in stiffness due to different lengths of the first to third valve necks 423, 433, and 443. That is, the first valve neck 423 having the longest length, the second valve neck 433 having the middle length, and the shortest third valve neck 443 may be sequentially opened. Of course, each of the discharge valves 42, 43 and 44 described above is an example, and the opening height can be adjusted by adjusting the stiffness by designing the length or width differently.

Hereinafter, the operation of the discharge valve unit 40 according to the first embodiment of the present invention will be described with reference to FIG. 9. As illustrated, the first to third discharge ports 233, 234, and 235 are arranged in the vertical direction in the compression space PS of the cylinder 21. In the discharge valve unit 40, the first to third valve heads 422, 432, and 442 cover the first to third discharge ports 233, 234, and 235, respectively. Further, the first to third valve necks 423, 433, and 443 extend along the arrangement direction of the first to third discharge ports 233, 234, and 235, that is, the vertical direction. At this time, the first to third valve necks (423, 433, 443) has a shape surrounding the circular valve head (422,432,442) in a circular curve.

The first to third discharge valves 42, 43 and 44 are sequentially opened in order of small rigidity when the pressure inside the cylinder rises above a certain level. When the motor is operated at a low speed, for example, 1,450 rpm, the first discharge valve 42 having low rigidity is opened first and largely due to the relatively low cylinder internal pressure, and the middle second discharge valve 43 is first Opening is limited to the third discharge valve 44 that is opened later and smaller than the discharge valve 42 and has the highest stiffness. On the other hand, when the motor is operated at a high speed, for example, 3,700 rpm, the opening amount of the third discharge valve 44 having high rigidity with a relatively high cylinder internal pressure may also be enlarged.

According to the features of the present invention, the first to third discharge valves 42, 43, and 44 may perform the following roles.

The first discharge valve 42 serves to reduce the peak pressure and improve the low rpm input together with the second discharge valve 43.

The second discharge valve 43 serves to naturally connect the valve opening and closing delays of the first and third discharge valves 42 and 44. In addition, the second discharge valve 43 reduces the peak pressure together with the first discharge valve 42, and opening is limited at a relatively low pressure at a low speed rpm to optimize the efficiency of the first discharge valve.

The third discharge valve 44 affects the pressure peak generation and cycle, can prevent a drop in cooling power due to low valve stiffness at high rpm, and the opening is limited for relatively low pressure at low rpm. Compression efficiency can be optimized with the second discharge valves (42,43).

Table 1 below shows the peak discharge pressure generated for each operation area of the compressor, and FIGS. 10 to 12 are peaks according to the change in the volume (cm ³ ) of the compression space (PS) of the cylinder 21 during low, medium, and high speed operation, respectively. It is a graph showing the discharge pressure.

rpm 1,450 1,850 3,700 Conventional technology (kgf / cm²) 6.8 7.0 8.4 The present invention (kgf / cm²) 6.3 6.4 7.6 Improvement rate (%) 7.0 ↓ 8.6 ↓ 9.5 ↓

In FIG. 10, when the cylinder 21 compression space PS is compressed to 1,450 rpm, the first discharge valve 42 of the present invention starts to open, and the second discharge valve 43 is sequentially opened and the third discharge The valve 44 is restricted from opening. The maximum peak discharge pressure is improved by about 7.0% compared to the prior art. In FIG. 11, when the cylinder 21 compression space PS is compressed to 1,850 rpm, the first discharge valve 42 of the present invention starts to open. The second discharge valve 43 and the third discharge valve 44 are sequentially opened. At this time, the maximum peak discharge pressure was improved by about 8.6% compared to the prior art.

In FIG. 12, when the cylinder 21 compression space PS is compressed to 3,700 rpm, the first discharge valve 42 of the present invention starts to open and sequentially the second discharge valve 43 and the third discharge valve ( 44) opens. At this time, the maximum peak discharge pressure was improved by about 9.5% compared to the prior art.

As described above, the compressor 1 to which the plurality of discharge ports 233, 234, 235 is applied is able to design the inner diameter of each discharge port 233, 234, 235 relatively smaller than the compressor of the prior art using one discharge port, so that the compressed discharge gas is compressed. It is possible to secure the flow rate of the same or additional and minimize the flow resistance.

In addition, if the size of the plurality of discharge ports (233,234,235) is reduced, the size of the corresponding plurality of discharge valves (42,43,44) can also be reduced, thereby reducing the impact when the discharge valves (42,43,44) are opened or closed. It can improve reliability and improve noise.

In addition, the plurality of discharge valves 42, 43, and 44 are opened and closed sequentially due to different stiffness, and as a result, it is possible to improve compression efficiency by improving overcompression of the gas. Such sequential opening and closing can be adjusted by designing different sizes of the inner diameter of each of the plurality of discharge ports 233, 234 and 235, the width of each valve neck, and the length of the valve neck.

Further, the first to third valve necks 423, 433, and 443 extend along the arrangement direction of the plurality of discharge ports 233, 234, and 235, thereby narrowly disposing the plurality of discharge ports 233, 234, and 235 It is possible to do.

The plurality of discharge valves 42, 43, and 44 have the same number of valves as the plurality of discharge ports 233, 234, and 235, but their shapes may be integrally formed. As described above, when the plurality of discharge valves 42, 43, and 44 are integrally manufactured, it is possible to obtain an effect of improving production cost, improving parts management, and assembling.

In addition, the plurality of discharge valves (42,43,44) are operated in the same direction as the straight line connecting the center line of the plurality of discharge valves, the plurality of discharge valves (42,43,44). Compact design is possible by taking up space, and the difference in stiffness between discharge valves can be further expanded within a limited space.

13 is a plan view showing a discharge valve unit 40 according to a second embodiment of the present invention. As illustrated, the discharge valve unit 40 includes first to third discharge valves 42, 43, and 44 disposed on the same plane. The first to third discharge valves 42, 43, and 44 are integrally connected to a fixed end 41 of a single body.

The first to third discharge ports 233, 234, and 235 are arranged in the vertical direction in the compression space PS of the cylinder 21. In the discharge valve unit 40, the first to third valve heads 422, 432, and 442 cover the first to third discharge ports 233, 234, and 235, respectively. Further, the first to third valve necks 423, 433, and 443 extend along the arrangement direction of the first to third discharge ports 233, 234, and 235, that is, the vertical direction.

The first discharge valve 42 is divided into two with a first space between the first valve head 422 and the first valve head 422 of the rectangle covering the first discharge port 233 of the valve plate 23 And a linear first valve neck 423 extending to the fixed end 41. The first discharge valve 42 accommodates the second discharge valve 43 and the third discharge valve 44 in a predetermined first space on the same plane.

The second discharge valve 43 is accommodated in the first space of the first discharge valve 42. The second discharge valve 43 is divided into two with a second space therebetween from the square second valve head 432 and the second valve head 432 that cover the second discharge port 234 of the valve plate 23. And a second valve neck 433 extending to the fixed end 41. The second discharge valve 43 accommodates the third discharge valve 44 on the same plane.

The third discharge valve 44 is accommodated in the second space. The third discharge valve 44 extends straight from the square third valve head 442 and the third valve head 442 covering the third discharge port 235 of the valve plate 23 to the fixed end 41 It includes a third valve neck (443).

As described above, in the discharge valve unit 40 according to the second embodiment of the present invention, the first to third valve necks 423, 433, 443 are arranged in the arrangement direction of the plurality of discharge ports 233, 234, 235. By extending along, it is possible to arrange the intervals of the plurality of discharge ports 233, 234, and 235 narrowly.

14 is a plan view showing a discharge valve unit 40 according to a third embodiment of the present invention. As illustrated, the discharge valve unit 40 includes first to third discharge valves 42, 43, and 44 disposed on the same plane. The first to third discharge valves 42, 43, and 44 are integrally connected to a fixed end 41 of a single body.

The first to third discharge ports 233, 234, and 235 are arranged in the circumferential direction in the compression space PS of the cylinder 21. In the discharge valve unit 40, the first to third valve heads 422, 432, and 442 cover the first to third discharge ports 233, 234, and 235, respectively. Also, the first to third valve necks 423, 433, and 443 extend along the arrangement direction of the first to third discharge ports 233, 234, and 235, that is, the circumferential direction.

The first discharge valve 42 is branched and fixed in two with a first space therebetween from the first valve head 422 and the first valve head 422 covering the first discharge port 233 of the valve plate 23. It includes a curved first valve neck 423 extending to the end (41). The first discharge valve 42 accommodates the second discharge valve 43 and the third discharge valve 44 in a predetermined first space on the same plane.

The second discharge valve 43 is accommodated in the first space of the first discharge valve 42. The second discharge valve 43 is branched and fixed in two with a second space therebetween from the second valve head 432 and the second valve head 432 that cover the second discharge port 234 of the valve plate 23. And a curved second valve neck 433 extending to the end 41. The second discharge valve 43 accommodates the third discharge valve 44 on the same plane.

The third discharge valve 44 is accommodated in the second space. The third discharge valve 44 is curved to extend toward the fixed end 41 from the third valve head 442 and the third valve head 442 covering the third discharge port 235 of the valve plate 23. It includes a third valve neck (443).

As described above, in the discharge valve unit 40 according to the third embodiment of the present invention, the first to third valve necks 423, 433, and 443 are arranged in the arrangement direction of the plurality of discharge ports 233, 234, and 235. By extending along, it is possible to arrange the intervals of the plurality of discharge ports 233, 234, and 235 narrowly.

15 is a plan view showing a discharge valve unit 40 according to a fourth embodiment of the present invention. As illustrated, the discharge valve unit 40 includes first to third discharge valves 42, 43, and 44 disposed on the same plane. The first to third discharge valves 42, 43, and 44 are integrally connected to a fixed end 41 of a single body.

The first to third discharge ports 233, 234, and 235 are arranged in the vertical direction in the compression space PS of the cylinder 21. In the discharge valve unit 40, the first to third valve heads 422, 432, and 442 cover the first to third discharge ports 233, 234, and 235, respectively. In addition, the first to third valve necks (423, 433, 443) is perpendicular to the straight line (A) passing through the center of the first to third discharge ports (233, 234, 235) and the center of the second discharge port (234) It extends toward a point P on a straight line B.

The first discharge valve 42 gradually widens toward the point P from the rectangular first valve head 422 and the first valve head 422 that cover the first discharge port 233 of the valve plate 23. And a first valve neck 423 extending to decrease.

The second discharge valve 43 gradually widens toward the point P from the rectangular second valve head 432 and the second valve head 432 that cover the second discharge port 234 of the valve plate 23. And a second valve neck 433 extending to decrease.

The third discharge valve 44 gradually widens toward the point P from the square third valve head 442 and the third valve head 442 covering the third discharge port 235 of the valve plate 23. And a third valve neck 443 extending to be narrowed.

As described above, the discharge valve unit 40 according to the fourth embodiment of the present invention extends the first to third valve necks 423, 433, 443 so that the width decreases toward one point P, It is possible to arrange the angle α between the plurality of discharge ports 233, 234, 235 very close to 15 degrees or less.

16 is a plan view showing the inner diameter (Sr) of the cylinder of the present invention and the respective inner diameters (V1r, V2r, V3r) of the first to third discharge ports (233,234,235). It is preferable that the sum of the inner diameters V1r, V2r, and V3r of the first to third discharge ports 233,234,235 is 39% or less of the inner diameter Sr of the cylinder. If the sum of each inner diameter exceeds 39%, interference with adjacent discharge ports occurs, and compression efficiency decreases.

Each inner diameter (V1r, V2r, V3r) of the first to third discharge ports (233,234,235) can be variously set within a range of 39% or less of the inner diameter (Sr) of the cylinder, for example, all the same 13%, all different .

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is usually in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. It is of course possible to perform various modifications by a person having knowledge of, and these modification embodiments should not be individually understood from the technical idea or prospect of the present invention.

1: Compressor
2: Courage
10: motor
16: rotating shaft
18: connecting rod
20: cylinder block
21: cylinder
22: piston
23: valve plate
232: inlet
233: first discharge exit
234: second discharge exit
235: 3rd outlet
24: gas intake
25: gas discharge unit
30: suction valve unit
32: suction valve
40: discharge valve unit
42,43,44: 1st to 3rd discharge valves
422, 432,442: first to third valve heads
423,433,443: First to third valve necks
50: valve stopper
60: valve stopper
PS: compressed space

Claims (15)

In the compressor,
A compression cylinder having a plurality of discharge ports for discharging compressed gas in a predetermined direction;
It includes a plurality of discharge valves provided in the plurality of discharge ports to adjust the amount of gas discharged,
Each discharge valve,
A valve neck having one end fixed in an elastic plate shape and extending along the arrangement direction of the plurality of discharge ports from the one end;
And a valve head provided to cover each discharge port at the other end of the valve neck. According to claim 1,
At least one valve neck of the plurality of discharge valves, characterized in that the compressor extends around at least a portion of the other discharge valve. According to claim 1,
Compressor characterized in that the plurality of discharge valves are opened sequentially. According to claim 1,
Compressor characterized in that the plurality of valve necks are fixedly supported integrally. According to claim 1,
The compressor further comprising a valve stopper extending along an arrangement direction of the plurality of discharge ports so as to cover all of the plurality of discharge valves and limiting opening and closing of the plurality of discharge valves. According to claim 1,
The compressor further comprising a valve keeper extending along an arrangement direction of the plurality of discharge ports to prevent the deformation of the plurality of discharge valves so as to cover the plurality of discharge valves. According to claim 1,
Compressor comprising at least one of the plurality of discharge valves, characterized in that provided in the other discharge valve. According to claim 1,
The plurality of discharge ports are arranged in a linear direction,
The plurality of discharge valves, characterized in that the compressor extending in a straight line along the linear direction. According to claim 1,
The plurality of discharge ports are arranged in a circumferential direction of a predetermined curvature,
The plurality of discharge valves, characterized in that the compressor extending along the circumferential direction. According to claim 1,
Compressor characterized in that the plurality of discharge ports have different diameters. In the compressor,
A compression cylinder having a plurality of discharge ports for discharging compressed gas in a predetermined direction;
A plurality of discharge valves provided at the plurality of discharge ports; And
A compressor including a valve keeper extending along an arrangement direction of the plurality of discharge ports so as to cover all the plurality of discharge valves and preventing deformation of the plurality of discharge valves. In the compressor,
A compression cylinder having a cylinder forming a compression space for compressing the gas and a valve plate provided with a plurality of discharge ports for discharging the compressed gas in a predetermined direction;
A plurality of valve heads provided in the plurality of discharge ports and a plurality of discharges having a plurality of valve necks extending from a plurality of valve heads toward a point on a line perpendicular to the arrangement direction of the plurality of discharge ports and passing through the center of both outermost discharge ports Includes a valve,
Compressor, characterized in that at least one of the plurality of valve necks are extended to gradually narrow toward the point. The method of claim 12,
Compressor characterized in that the angle between the two adjacent valve neck is 15 degrees or less. The method of claim 12,
The plurality of discharge ports is a compressor, characterized in that the sum of each inner diameter is 39% or less of the inner diameter of the cylinder. In the electronic device having a compressor,
The compressor,
It includes a compression cylinder having a plurality of discharge ports for discharging compressed gas in a predetermined direction and a plurality of discharge valves provided at the plurality of discharge ports to control the amount of gas discharged,
Each discharge valve,
It characterized in that it comprises a valve head provided to cover the respective discharge ports on the other end of the valve neck and the other end of the valve neck is fixed to one end fixed in the plate shape with elasticity, extending along the arrangement direction of the plurality of discharge ports from the one end Electronics.

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