WO2012091508A2

WO2012091508A2 - Compressor

Info

Publication number: WO2012091508A2
Application number: PCT/KR2011/010355
Authority: WO
Inventors: 신재희
Original assignee: Shin Jae Hee
Priority date: 2010-12-31
Filing date: 2011-12-30
Publication date: 2012-07-05
Also published as: KR20120077937A; KR101335345B1; WO2012091508A3

Abstract

The present invention relates to a compressor, and the invention provides a compressor which comprises: an electrically-powered unit that generates electric power; and a compression mechanism unit that has a cylinder, a piston, and a piston rod in order to inhale, compress, and discharge air or refrigerant gas by receiving the electric power of said electrically-powered unit, wherein an equal pressure maintenance unit is further comprised between said electrically-powered unit and said compression mechanism unit, and the equal pressure maintenance unit performs a see-saw movement in an engaged state by gears whereby a central shaft of a link is moved, thereby guiding the piston of said compression mechanism unit such that the piston always generates a regular virtual pressure regardless of load changes. According to the present invention, since the piston is pressed with uniform pressure all the time, no pulsation occurs, the duration of links for driving the piston is extended due to small load changes, and compression efficiency is improved.

Description

compressor

The present invention relates to a compressor, and more particularly, to an improved compressor to reduce the load by improving the pressure according to the position of the piston, to improve the compression efficiency and to achieve a long service life.

Generally, a compressor is a device that compresses a fluid such as air or refrigerant gas. Most of these compressors are reciprocating compressors, and generally include an electric mechanism unit provided inside the casing to generate a driving force, and a compressor mechanism for sucking and compressing air or refrigerant gas by receiving the driving force of the electric mechanism unit.

Thus, when a driving force is generated in the power mechanism by the applied power, the driving force is transmitted to the compressor mechanism, whereby the compressor mechanism sucks, compresses, and discharges air or refrigerant gas.

At this time, the compression mechanism is usually composed of a cylinder and a piston, the piston receives the air or the air inside the cylinder while reciprocating between the top dead center and the bottom dead center by receiving the power of the electric mechanism portion is discharged after compression.

As such, in the conventional reciprocating compressor, most of the pistons perform a compression action by raising and lowering the piston within a certain amplitude.

However, the pressure difference occurs inside the cylinder during the reciprocating motion within the constant amplitude of the piston, that is, repeatedly reciprocating between the top dead center and the bottom dead center. That is it.

However, the piston installed in the conventional reciprocating compressor is designed to reciprocate to pressurize the cylinder at the same force and speed at all times, so that it is always pressurized constantly regardless of the initial or final stage, so that pulsation is likely to occur, and the load fluctuates severely. The lifetime of the connected links is shortened, and the compression efficiency is inferior.

The present invention has been made to solve the conventional problems as described above, by modifying the structure of the link connected to the piston in the compressor to always generate a uniform and constant pressing force irrespective of the pressure applied to the piston to cause the pulsation source Its main purpose is to provide a compressor that can cut off, reduce load fluctuations, and improve compression efficiency.

In order to achieve the object of the present invention as described above, and to perform the characteristic functions of the present invention described below, features of the present invention are as follows.

According to one embodiment of the present invention, there is provided an electric power unit that generates power; A compressor comprising a compressor mechanism consisting of a cylinder, a piston and a piston rod to receive, compress, and discharge air or refrigerant gas by receiving power of the electric mechanism unit; The central axis of the link is moved between the electric mechanism part and the compressor mechanism in the state of being engaged with the gear in the state of being engaged with the gear, thereby providing a pressure equalizing portion for guiding the piston of the compressor mechanism to generate a constant pressing force regardless of the load fluctuation. One compressor is provided.

Here, the equalization holding part is a crank shaft connected to the electric mechanism part, a first link of which one end is a rotary joint and vertically extended to the eccentric portion of the cam, one end is a rotary joint to the other end of the first link and the other end is the piston An arc-shaped equalization distribution guide having a second link horizontally extended to the rod and a rotary link, a link gear formed on a lower surface of the second link, a guide gear engaged with the link gear, and installed below the second link; A pressure roller rotatably fixed to the equalization distribution guide and protruding upwardly without interfering with the second link, and a pressure roller rotatably fixed to the flow shaft and disposed in cloud contact with the upper surface of the second link. It may include.

In addition, when the eccentric portion connecting end of the first link is further extended to include a link extension portion, the link extension portion may further include the equalization holding portion, and one compression mechanism may be further provided through the equalization holding portion. .

According to the present invention, it is possible to pressurize the piston at a uniform pressure at all times, so that pulsation does not occur, the load fluctuation is small, so that the life of the links for driving the piston can be extended, and the compression efficiency can be improved. .

1 is a schematic diagram schematically showing the main parts to explain the operation relationship of the compressor according to the first embodiment of the present invention.

2 is a schematic diagram showing another type of compressor according to the second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

As shown in FIG. 1, the compressor according to the first embodiment of the present invention corresponds to a reciprocating compressor that is commonly used. Accordingly, the compressor according to the present invention, as described above in the prior art, basically a power mechanism unit 100 for generating a driving force, and a compressor mechanism for sucking and compressing air or refrigerant gas by receiving the driving force of the power mechanism 100. And 200.

In this case, the power mechanism 100 may exemplify a driving motor (M) as a power source, the compressor mechanism is a cylinder 200, the piston 210 reciprocating while being built in the cylinder 200 and The piston rod 230 is connected to the piston 210 and receives power, and the power is transmitted by the first and second links L1 and L2.

In addition, in the present invention, the equalization maintenance unit 300 is further included, and the equalization maintenance unit 300 has an inseparable connection relationship with the first and second links L1 and L2 as described below.

The pressure maintaining unit 300 includes a crank shaft 310. The crankshaft 310 is approximately '

'Is formed into a shape.

In other words, the crankshaft 310 is formed in a shape forming a horizontal portion 312 so that both ends are located on the same straight line, and protrudes vertically from the horizontal portion 312 to form an eccentric portion 314.

One end of the crank shaft 310, that is, one of the horizontal parts 312, may be connected to a rotation shaft of the driving motor M constituting the electric mechanism part 100, and the other horizontal part, which is the other end, may be rotated idlely. So that the bearing is fixed.

In addition, one end of the first link (L1) is rotatably connected in a rotary joint manner in the center of the length of the eccentric portion 314, the other end is vertically extended and then one end and the rotary joint of the second link (L2) Connected in a way.

On the other hand, the other end of the second link (L2) is connected to the rotary joint method on the upper end of the piston rod 230, in particular, a predetermined length link gear 320 is formed on the lower surface of the second link (L2).

Therefore, when the crank shaft 310 is rotated through the structure, the first link L1 connected to the eccentric portion 314 has the amplitude as much as the rotation radius of the eccentric portion 314 to repeatedly move up and down. Thus, one end of the second link (L2) connected to the other end of the first link (L1) is also raised and lowered together.

However, in this structure, the second link L2 may be configured to be seesaw-movable by providing a member that serves as a center point for pressing a portion of the length of the second link L2, and in this case, the second link L2 Piston 230 connected to the other end of the) can be implemented to enable the up and down reciprocating movement in accordance with the seesaw movement of the second link (L2).

In this case, the equalization distribution guide 330 for distributing a uniform force while smoothing and smoothing the seesaw movement of the second link (L2), a flow shaft rotatably fixed to the equalization distribution guide 330 ( 340, the pressure roller 360 fixed to the end of the flow shaft 340 and rolling contact to roll along the upper surface of the second link L2 may serve as the center point.

At this time, the equalization distribution guide 330 is preferably fixed firmly in the case (not shown) constituting the compressor, and is formed in a substantially 1/4 disk shape, the circumference, that is, the link gear 320 and the arc The engaging guide gear 340 has a structure formed.

In addition, one end of the flow shaft 340 is rotatably fixed to one side of the equalization distribution guide 330, and the other end thereof is extended upward so as not to interfere with the second link (L2). The pressure roller 360 is rotatably fixed.

In addition, the pressure roller 360 performs a kind of bearing function, and is installed in contact with the upper surface of the second link (L2).

Accordingly, when one end of the second link L2 is inclined, the flow shaft 360 is also inclined in the inclined direction while the link gear 320 and the guide gear 340 are engaged with each other, and the pressure roller 360 is tilted at the same time. Direction, the piston rod 230 is raised in the process, the piston rod 230 is lowered when moving in the opposite direction.

As such, the piston rod 230 may always flow the piston 220 at a constant pressure regardless of the presence or absence of a load. Therefore, in the first embodiment of the present invention, the pulsation of the piston 220 according to the load fluctuation is eliminated, the uniform and uniform pressure movement is possible, and the compression efficiency is improved, and the life of the links, which are power transmission systems, is also extended. Has

Hereinafter, a modified embodiment of the compressor will be described. 2 is a schematic diagram showing another type of compressor according to the second embodiment of the present invention.

As shown in FIG. 2, the compressor according to the second embodiment of the present invention is slightly different from the compression of FIG. 1, and further vertically extends an end connected to the eccentric portion 314 of the first link L1. An extension portion L1 'is made and a third link L3 having the same structure as the second link L2 is connected to an end of the link extension portion L1', but the equalization distribution guide 330 described above. In addition, the flow shaft 350 and the pressure roller 360 may be configured to be implemented in a double manner so as to interact with each other.

That is, the driving motor (M) as a power source can implement two compression mechanism parts 200 while using one. The present invention made up of such a configuration has the following operational relationship.

When the driving motor M constituting the electric mechanism unit 100 is driven, the crank shaft 310 connected to the rotating shaft (not shown) is rotated. Accordingly, while the eccentric portion 314 constituting the cam 310 rotates, the first link L1 rotates while moving up and down the top dead center and the bottom dead center.

Then, one end of the second link (L2) connected to the first link (L1) has a state as shown in FIG. 1 as the top dead center, and descends therefrom when the eccentric portion (314) falls to the lowest point. The seesaw movement is performed with the center point as the center point supported by the pressure roller 360.

Here, the center point is gradually changed as the pressure roller 360 flows, and the center point is also changed while reciprocating from side to side.

At this time, since the link gear 320 formed on the lower surface of the second link L2 and the guide gear 340 formed on the arc of the equalization distribution guide 330 are engaged with each other, the second link L2 is seesawed. The piston rod 230 connected to the other end of the second link L2 always has a constant and uniform behavior regardless of the load variation applied to the piston 220 in the cylinder 210.

As such, the compressor according to the second embodiment of the present invention also eliminates the pulsation of the piston 220 due to the load fluctuation, and enables uniform and even pressurization movement to improve the compression efficiency and to link the power transmission system. Their life is also extended.

As described above, although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains without changing the technical spirit or essential features of the present invention in other specific forms You can understand that you can. Accordingly, the embodiments described above are exemplary in all respects and not restrictive.

Claims

An electric mechanism part 100 generating power; In the compressor including a compression mechanism 200 consisting of a cylinder 210, a piston 220 and a piston rod 230 to receive, compress, and discharge air or refrigerant gas by receiving power from the electric mechanism unit 100. In

The central axis of the link is moved while the seesaw movement is engaged between the transmission mechanism part 100 and the compression mechanism unit 200 by the gear, thereby causing the piston 220 of the compression mechanism unit 200 to be independent of the load variation. Compressor, characterized in that it is further provided with a uniform pressure maintaining portion 300 to guide to generate a constant pressing force at all times.
According to claim 1,

The pressure maintaining unit 300,

A crank shaft 310 connected to the power mechanism unit 100, a first link L1 of which one end is rotary joined to the eccentric portion 314 of the crank shaft 310, and is vertically extended;

One end of the rotary link is coupled to the other end of the first link (L1) and the other end is horizontally extended to the second link (L2) and the link formed on the lower surface of the second link (L2) Gear 320,

A shaft-shaped equalization distribution guide 330 having a guide gear 340 meshing with the link gear 320 and a lower portion of the second link L2 and rotatably fixed to the equalization distribution guide 330. A flow shaft 350 protruding upward without interference with the second link L2, and

The pressure roller 360 is rotatably fixed to the flow shaft 350 and disposed in contact with the upper surface of the second link (L2) in a rolling contact.

Compressor comprising a
The method of claim 2,

The eccentric portion 314 of the first link (L1) is further extended to form a link extension (L1 '), the link extension portion (L1') in the equal pressure holding portion made of the same configuration as described in claim 2 (300) is further provided, the compressor characterized in that the compression mechanism (200) is provided with one more to enable the compression mechanism 200 to interact with each other.