KR20060097208A - The capacity variable device of orbiter compressor - Google Patents

Abstract

The present invention relates to a swing vane compressor, and more particularly, to change the capacity of the swing vane compressor so that the compression occurs only in the inner compression chamber or the outer compression chamber by a simple valve operation. Apparatus, the circular smart valve for forming or blocking the communication flow path between the cylinder inlet and the outer frame of the swing vane compressor between the inlet of the cylinder and the outlet of the inner and outer cylinder by the forward and reverse rotation by the drive means In addition to securing the economics of using the compressor, it is possible to prevent power waste and shorten the lifespan of the related devices and parts by operating the compressor on / off, thereby improving the quality and reliability of the equipment. Will have

Round smart valve, valve operating groove, valve turntable, cylinder, inlet

Description

Capacity variable device of orbiter compressor

1 is a longitudinal sectional view showing a configuration of a general swing vane compressor.

Figure 2 is an operating state diagram showing the compression process of FIG.

Figure 3 is an exploded perspective view showing the configuration of the present invention.

Figure 4a, 4b shows the operating state of the present invention,

Figure 4a is a plan view showing a normal operating state.

4B is a plan view showing an idle state.

* Explanation of symbols for main parts of the drawings

110: Valve operating groove 110a, 110b: Inside and outside suction hole of cylinder

120: valve rotating plate 121: inner valve suction port

122: inner valve outlet 123: outer communication inlet

124: outward communication outlet 125: outward communication path

126: inner communication inlet 127: inner communication outlet

128: Inner communication passage 129: Outer valve inlet

130: Outlet valve outlet

The present invention relates to a swing vane compressor, and more particularly, to change the capacity of the swing vane compressor so that the compression occurs only in the inner compression chamber or the outer compression chamber by a simple valve operation. Relates to a device.

Generally, the swing vane compressor is configured to compress the refrigerant gas sucked into the cylinder by the swing vane swinging motion inside the cylinder having the inlet, and various types of swing vane compressors are proposed according to the shape. It has been.

1 is a longitudinal cross-sectional view showing a typical rotary type swing vane compressor, which is an upper motor part (D) and a lower compression part (P) is sealed in one shell (1), the motor part (D) and the compression section (P) are interconnected by a vertical crankshaft (6), the crankshaft (6) comprises an eccentric (6a).

The motor unit D includes a stator 2 fixed to the inside of the shell 1 and a rotor for rotating the crankshaft 6 vertically penetrated by the applied power provided in the stator 2. It consists of (3).

The compression unit P is a cylinder 5 through the inlet 51 by the orbiter 4 is pivoting in the cylinder 5 by the eccentric portion 6a of the crankshaft 6. It is configured to compress the refrigerant gas sucked into the interior of the cylinder 5 has an inner ring 52, the annular operating space 53 between the inner ring 52 and the inner wall of the cylinder (5) ) Is formed so that the wrap (40) of the swing vane (4) is a pivoting motion inside and outside the wrap (40) by the pivoting movement in the operating space (53).

In addition, the upper and lower portions of the compression unit P are provided with a main frame 7 and a subframe 7a so that both ends of the crankshaft 6 can be supported, and the subframe 7a is provided. The discharge chamber 8a is formed by the muffler 8, and the discharge chamber 8a is connected to the discharge passage 9 in the form of a pipe vertically penetrating the compression unit P and the main frame 7. The refrigerant gas compressed through the discharge passage 9 may be discharged into the shell 1.

Here, reference numeral 11 denotes a suction tube, 12 denotes a discharge tube, and 10a denotes an old dam ring, which is a rotating prevention mechanism.

The rotary type swing vane compressor configured as described above rotates the crank shaft 6 vertically coupled to the rotor 3 by driving the rotor 3 of the motor unit D by an applied power source. By the rotation of (6), the turning vane 4 coupled to the eccentric portion 6a of the crankshaft 6 makes a turning movement.

Accordingly, the refrigerant gas sucked into the cylinder 5 through the suction port 51 while the wrap 40 of the swing vane 4 swings inside the operating space 53 of the cylinder 5. Compressed in both compression chambers of the lap 40, the compressed refrigerant gas is discharged to the discharge chamber (8a) through the inner and outer discharge ports (not shown) of the cylinder (5) and the sub-frame (7a) The discharged high pressure refrigerant gas is discharged to the inside of the shell 1 through the discharge passage 9 so that the compressed refrigerant gas is discharged through the discharge tube 11.

2 is an operating state diagram showing the compression process of FIG.

As shown in the compression unit (P) is the lap 40 of the turning vane (4) is rotated as shown by the arrow in the interior of the working space 53, the working space 53 through the suction port 51 It is intended to compress the refrigerant gas sucked into the interior, which will be described in more detail as follows.

That is, in the initial operating state (0 °), the suction of the refrigerant gas through the suction port 51 and the inner suction chamber A1 of the wrap 40 proceeds, and the outer compression chamber B2 of the wrap 40 is Compression starts with the suction port 51 and the outer discharge port 53b blocked, and the inner compression chamber A2 simultaneously compresses and discharges the refrigerant gas.

In the state rotated by 90 °, the compression of the outer compression chamber B2 of the wrap 40 is still in progress, and the compression chamber of the inner compression chamber A2 of the wrap 40 discharges the compressed refrigerant gas through the inner discharge port 53a. It is almost completed, and the outer suction chamber B1 which did not exist in the previous stage is created, and suction of the refrigerant gas is made through the suction port 51.

In the rotated state by 180 °, the inner suction chamber A1 existing in the previous step disappears, and instead, the inner suction chamber A1 becomes the inner compression chamber A2 to start compression, and the outer suction chamber B1 ) Is communicated with the outer discharge port 53b to proceed with the discharge of the compressed refrigerant gas.

The outer compression chamber B2 of the lab proceeds to discharge the compressed refrigerant gas through the outer discharge port 53b in the state of rotating 270 °, and the inner compression chamber A2 also continues to compress and the outer suction chamber Compression of (B1) is started, and when rotated further by 90 ° in this state, the outer suction chamber B1 that existed in the previous step becomes the outer compression chamber B2, thereby compressing the compression on the outer compression chamber B2. By returning to the original state as it progresses, the cycle based on one rotation of the crankshaft is continuously repeated.

Here, reference numeral 55 denotes a slider for sealing between the high pressure portion and the low pressure portion.

On the other hand, in a refrigeration or air conditioner such as a refrigerator or an air conditioner, the saving operation stops the operation of the compressor when the temperature inside or inside the room reaches the set temperature, and starts the compressor again when the temperature inside the room or the room rises above the set temperature. It is made by repetitive on / off operation of the compressor.In general, the compressor consumes more power at start-up than normal operation, and the load of internal compressed gas and interference between components due to sudden stop of operation and initial start-up Due to the premature wear of the parts there is a problem that shortens the life of the compressor.

Therefore, as described above, it is required to be able to change the capacity of the compressor without repeated on / off operation of the compressor. As such a method of varying the capacity of the compressor is controlled by controlling the rotational speed of the driving unit, that is, the motor. There is an inverter method capable of varying the capacity, but there is a problem in that the production cost is increased due to expensive related electric circuit control devices and components, resulting in a lower price competitiveness of the product.

Accordingly, the present invention has been made to solve the conventional problems as described above, the object of the swing vane compressor is to form a compression chamber on the inside and outside of the swing vane by turning the swing vane inside the cylinder In the above, the compression occurs only in the inner compression chamber or the outer compression chamber with a simple valve operation so that the capacity of the compressor according to the mode change can be varied.

In order to achieve the object of the present invention, the compression chamber is formed inside and outside the wrap by rotating the orbiter by the crank shaft in the working space inside the cylinder having the inlet and the inner and outer discharge port of the cylinder, A crankshaft is a swing vane compressor supported by a subframe having inner and outer ejection openings of a sub bearing, wherein a cylinder inlet and an inner and outer ejection opening of a cylinder are formed between the cylinder and the subframe by forward and reverse rotation by a driving means. There is provided a capacity variable device of the swing vane compressor, characterized in that it is provided with a circular smart valve to form or block the communication flow path therebetween.

In addition, the circular smart valve is formed on the upper and lower sides of the cylinder, the valve operating groove including the cylinder inlet / outer suction hole and the cylinder inner / outer discharge port communicating with the inlet of the cylinder; An inner valve suction port and an outer communication suction port and an inner communication suction hole and an outer valve suction hole which are formed in the same shape as the valve operation groove and match the inner and outer suction holes of the cylinder are formed, and the inner valve discharge port and the outer discharge hole which correspond to the inner and outer discharge ports of the cylinder. The communication discharge port and the inner communication discharge port and the outer valve suction port is formed, the outer communication suction port and the outer communication discharge port and the inner communication suction port and the inner communication discharge port, respectively, the valve rotating plate to form an outer communication passage and the inner communication passage; It is done.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the present invention according to the embodiment.

Figure 3 is an exploded perspective view showing the configuration of an embodiment of the present invention.

As shown in the present invention, the valve actuating groove 110 is formed on the lower surface of the cylinder 5 (upper surface in the drawing), and the valve actuating groove 110 is a lateral suction port 51 of the cylinder 5. Inner and outer inlet hole (110a) (110b) communicating with the cylinder and the inner and outer discharge port (53a) (53b) communicating with the inner and outer compression chamber inside the cylinder (5), the valve operation groove ( The valve rotary plate 120 having the same shape as 110 is rotatably seated.

In addition, the valve rotating plate 120 has an inner valve suction port 121 and an outer communication suction hole 123 corresponding to the inner and outer suction holes 110a and 110b of the cylinder of the valve operation groove 110, and an inner communication suction hole ( 126 and an outer valve suction port 129, and an inner valve discharge port 122 and an outer communication discharge port 124 corresponding to the inner and outer discharge ports 53a and 53b of the cylinder, and an inner communication discharge port 127 and An outer valve discharge port 130 is included.

The outer communication suction opening 123 and the outer communication discharge opening 124 are configured to communicate with each other by the outer communication passage 125 forming the upper open groove shape, the inner communication suction opening 126 and the inner communication discharge opening ( 127 is also configured to communicate with each other by the inner communication passage 128, the inner valve suction port 121 and the inner valve discharge port 122, the outer valve suction port 129 and the outer valve discharge port 130 is The outer communication passage 125 and the inner communication passage 128 are respectively configured to be blocked.

The valve rotating plate 120 is rotated by using a common driving means such as a step motor or an actuator, and can be applied to both the crank shaft rotating in one direction or the forward and reverse rotation, and the forward and reverse rotation. There is an advantage in that the design of the motor can be designed according to each load in both directions to optimize the motor.

4A and 4B illustrate an operating state of an embodiment of the present invention, and FIG. 4A is a plan view illustrating a state in which only the inner compression chamber is compressed.

When the rotational direction of the crankshaft is forward rotation in one direction or in both directions, the inner and outer suction holes 110a and 110b of the cylinder and the inner valve suction port 121 and the outer communication suction hole 123 of the valve rotating plate 120 coincide with each other. Outer outlet (53a) (53b) and the inner valve discharge port 122 and the outer communication discharge port 124 of the valve rotating plate 120 coincide, but the inner communication suction port 126 and the inner communication discharge port 127 and the outer valve suction port 129 and the outer valve discharge port 130 is inconsistent.

The outer communication suction opening 123 and the outer communication discharge opening 124 communicate with each other by the outer communication passage 125, and the inner valve suction opening 121 and the inner valve discharge opening 122 are the outer communication passage 125. It is closed by the outer communication suction inlet 123 and the outer communication discharge port 124 communicated with each other by.

Accordingly, the refrigerant gas compressed in the inner compression chamber of the cylinder 5 is discharged from the cylinder 5 through the inner cylinder outlet 53a, the inner valve outlet 122 of the valve rotating plate 120, and the sub bearing inner outlet 7b. While the compression is performed by discharged to the outside, the refrigerant gas compressed in the outer compression chamber of the cylinder 5 is discharged to the outer cylinder outlet 53b and the outer communication outlet 124 and the outer communication passage 125 of the valve rotating plate 120 Through the suction is communicated to the outer side through the communication inlet 123 side is to be made idle.

However, as shown in FIG. 4B, when the rotational direction of the crankshaft is rotated in the direction of the arrow by the reverse rotation of one or both directions, the cylinder inner and outer suction holes 110a and 110b and the valve rotating plate are rotated. The inner communication inlet 126 and the outer valve inlet 129 of the 120 coincide with each other, and the inner and outer discharge ports 53a and 53b of the cylinder and the inner communication discharge port 127 and the outer valve discharge port of the valve rotating plate 120 ( 130 coincides with each other, but the inner valve suction port 121, the inner valve discharge port 122, the outer communication suction port 123, and the outer communication discharge port 124 are inconsistent.

In addition, the inner communication suction opening 126 and the inner communication discharge opening 127 communicate with each other by the inner communication passage 128, and the outer valve suction opening 129 and the outer valve discharge opening 130 are the inner communication passage 128. It is closed by the inner communication suction inlet 126 and the inner communication discharge port 127 communicated with each other by.

Accordingly, the refrigerant gas compressed in the outer compression chamber of the cylinder 5 is transferred to the outside of the cylinder 5 through the outer cylinder outlet port 130, the outer valve outlet 130 of the valve rotating plate 120, and the sub bearing outer outlet port 7c. While the compression is performed by discharging to the inside of the cylinder 5, the refrigerant gas compressed in the inner compression chamber of the cylinder 5 passes through the inner communication outlet 127 and the inner communication passage 128 of the cylinder inner discharge port 53a and the valve rotating plate 120. Through the suction through the inner communication suction inlet 126 through the communication is to be made idle.

As described above, according to the present invention, in a swing vane compressor in which a swing vane is pivoted inside a cylinder to form a compression chamber inside and outside the swing vane, the vane compressor is compressed only in the inner compression chamber or the outer compression chamber by a simple valve operation. This makes it possible to change the capacity of the compressor according to the mode change, thereby securing economical use of the compressor, and also preventing power waste and shortening the lifespan of the related devices and components. It can have the effect of improving the quality and reliability of the device.

Claims (2)

In the working space inside the cylinder having the inlet and the inner and outer discharge ports, the orbiter's wrap is pivoted by the crankshaft to form a compression chamber inside and outside the wrap, and the crankshaft is provided with the inner and outer discharge ports of the sub bearing. In a swing vane compressor supported by a subframe having: Swivel vane compressor, characterized in that between the cylinder and the sub-frame is provided with a circular smart valve to form or block the communication flow path between the inlet and the inner and outer discharge port of the cylinder by the forward and reverse rotation by the drive means Capacity variable device. The method of claim 1, The round smart valve is formed on the upper and lower sides of the cylinder, the valve operating groove including an inner and outer suction hole and the inner and outer discharge port of the cylinder communicating with the inlet of the cylinder; An inner valve suction port and an outer communication suction port and an inner communication suction hole and an outer valve suction hole which are formed in the same shape as the valve operation groove and match the inner and outer suction holes of the cylinder are formed, and the inner valve discharge port and the outer discharge hole which correspond to the inner and outer discharge ports of the cylinder. The communication discharge port and the inner communication discharge port and the outer valve suction port is formed, the outer communication suction port and the outer communication discharge port and the inner communication suction port and the inner communication discharge port, respectively, the valve rotating plate to form an outer communication passage and the inner communication passage; Capacity changer of rotary vane compressor.

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