ES2307814T3 - COMPRESSOR FIN. - Google Patents

Abstract

Compressor flap comprising: a fin preform (121) that is inserted into a groove (41) of a cylinder (40) having a compression space (P), has a predetermined thickness and area to divide the space of Compression of the cylinder in a suction zone (a) and a compression zone (b), and has a linear contact side in a rotating piston (50), performing a linear reciprocating motion according to the rotation of the rotating piston (50). ), making linear contact on the rotating piston (50) which is located in the compression space of the cylinder (40); characterized in that it further comprises fiber (122) which is inserted inside the fin preform (121) and formed in the same direction as the direction of movement of the fin (121).

Description

Compressor fin

Technical field

The present invention relates to a fin of a compressor and, in particular, a fin of a compressor capable of improve vibration absorption and protection against abrasion and reduce weight.

Prior art

In general, the compressor is an instrument for compress gas such as refrigerant and the like. The compressor is generally classified in rotary compressor, alternative compressor and spiral compressor according to the gas compression procedure.

Said compressor comprises a device of refrigeration cycle that is mounted on a refrigerator or a air conditioner and forms an airtight system.

Figures 1 and 2 show an embodiment of the compressor. As shown in the drawing, in the hermetic compressor,  a rotation shaft 30 coupled to a rotor 21 of a motor of drive 20 rotates when drive unit 20 is operated mounted on airtight housing 10.

As rotation axis 30 rotates, the eccentric part 31 of the rotation axis 30 rotates eccentrically  in the compression space P of a cylinder 40, which is located located on the lower side of the drive motor 20.

As the eccentric part 31 of the axis of rotation 30 rotates in the compression space P of the cylinder 40, a side of a rotating piston 50 coupled to the eccentric part 31 makes linear contact on the inner wall of the compression space P of cylinder 40.

The other side of the rotating piston 50 performs a circular movement in compression space P of cylinder 40 also making linear contact with a fin 60 that is coupled slidably to a groove 41 formed on one side of the cylinder 40

As the rotating piston 50 performs a circular movement in the compression space P of the cylinder 40, the compression space P of the cylinder 40 divided by the fin 60 it becomes a suction zone (a) and a compression zone (b), and the refrigerant gas is aspirated through an opening of suction 42 arranged in cylinder 40, and then compressed and discharged through a discharge opening 43 located in the cylinder 40.

The refrigerant compression gas that passes to through the discharge opening 43 passes inside the housing airtight 10 through a discharge through hole 71 formed on an upper support plate 70 between the upper support plate 70 and a lower support plate 80, which are covered and respectively coupled to both sides of cylinder 40.

The high temperature and high refrigerant gas pressure that is discharged into the airtight housing 10 passes through a discharge tube 11 coupled to the upper part of the housing airtight 10.

At this time, as the space of P compression of cylinder 40 becomes the suction zone (a) and the compression zone (b), the discharge through the hole 71 is opens and closes by operating opening / closing means 90 coupled to the upper part of the upper support plate 70 between yes.

Reference number 12 designates a tube of suction, 13 designates a coupling screw, 22 designates a Stator and 100 designates a silencer.

On the other hand, as shown in Figure 3, the fin 60 which is inserted into the groove 41 of the cylinder 40 and performs a linear alternative movement that remains in contact linearly in the rotating piston 50 has a square shape, and a side of fin 60 is composed of a curved surface 61 that It has a predetermined curvature.

Flap 60 has a curved surface 61 that is inserted into the groove 41 of the cylinder 40 to be left in contact in the rotating piston 50, and the opposite curved surface of fin 60 is held elastically by a spring S. curved surface is in contact with the rotating piston 50, and at as the axis of rotation 30 rotates, the compression space P of cylinder 40 is divided into the suction zone (a) and the zone of compression (b).

In addition, fin 60 is manufactured by turning High speed steel in a predetermined way.

Also, fin 60 performs a movement linear alternative in slot 41 of cylinder 40 receiving pressure in the lateral direction due to the pressure difference of the suction zone (a) and compression zone (b) of cylinder 40 and a specific force is applied to the curved surface 61 as that elastic contact is made with the surface on the piston swivel 50.

However, in the structure and form of the fin 60, as the material is made of fast steel, the curved surface 61 of fin 60 made linear contact in the 50 rotating piston, a lot of abrasion was generated between the cylinder 40 and the rotating piston 50 in the course of the movement linear alternative in the groove 41 of the cylinder 40, and was produced A lot of noise from friction. The movement was also mitigated since the fins 60 were heavy, and the consumption of Energy.

It is also known from EP715079 a refrigerant that uses an oil composition lubricant as a refrigerant oil and comprises a compressor of hermetic electric drive whose sliding elements are made of a material selected from iron type materials, aluminum and carbon composite materials, type materials iron with surface treatment with chromium nitride and materials ceramic

US4669963 describes a pump of rotary piston vacuum having a rotor arranged eccentrically in a cylinder and mounted on it for rotation in rolling contact with the inner peripheral surface cylindrical cylinder so that a shape space is defined increasing between the rotor and the cylinder and moves around the shaft of the cylinder. A fin mounts each other radially in a fin chamber that has an inner end open to the cylindrical inner peripheral surface of the cylinder. The fin it has an inner end in contact with sliding with the outer peripheral surface of the rotor to divide the space of growing form in a suction chamber in communication with a suction opening and a discharge opening to be communicated with a discharge opening that has an open inner end on a wall of an outer part of the fin chamber.

Description of the invention

Therefore, an objective of the present invention is to provide a fin of a compressor capable of improving the vibration absorption and abrasion protection and reduce weight

To achieve these objectives, a fin of a compressor as described in the claim one.

Brief description of the drawings

Figure 1 is a longitudinal sectional view. showing an embodiment of a conventional compressor;

Figure 2 is a flat sectional view that shows an embodiment of the conventional compressor;

Figure 3 is a perspective view that shows a fin of a conventional compressor;

Figure 4 is a longitudinal sectional view. which shows a compressor that includes a fin for compressor according to the present invention;

Figure 5 is a flat sectional view that shows the compressor that includes a fin for compressor according to the present invention;

Figure 6 is a perspective view that shows another embodiment of the fin for compressor according to the present invention;

Figure 7 is a perspective view that shows another embodiment of another embodiment of the fin for compressor according to the present invention;

Figure 8 is a perspective view that shows another embodiment of another embodiment of the fin for compressor according to the present invention;

Figure 9 is a perspective view that shows another embodiment of another embodiment of the fin for compressor according to the present invention;

Figure 10 is a perspective view that shows another embodiment of another embodiment of the fin for compressor according to the present invention; Y

Figure 11 is a perspective view that shows another embodiment of another embodiment of the fin for compressor according to the present invention.

Ways to carry out preferred embodiments

Hereinafter, the fin of the compressor of according to the present invention will be described with reference to the accompanying drawings

Figures 4 and 5 show a compressor with the realization of the compressor fin according to the present invention. As shown in the drawings, the compressor includes an airtight housing 10, a drive motor that is composed of a stator 22 mounted on the airtight housing 10 and a rotor 21 which is inserted in the stator 22, a rotation axis 30 which has an eccentric part 31 therein and is compressed and inserted into the inner diameter of the rotor 3, a cylinder 40 in that a hole is formed, which is fixed and coupled to the hermetic housing 10 when presenting a compression space P in the which gas is aspirated and compressed and an eccentric part is inserted 31 of the rotation axis 30, a top support plate 70 and a bottom support plate 80 that are located respectively at the top and bottom of the cylinder 40 to tightly close the compression space P of the cylinder 40 to hold the rotation axis 30, a plurality of screws 13 to join the upper support plate 70 and the support plate bottom 80 together with cylinder 40, a rotating piston that is inserted in the eccentric zone 31 of the rotation axis 30 and rotates in the compression space P of the cylinder 40 according to the rotation of the rotation axis 30, a fin 120 which is inserted in the slot 41 formed in cylinder 40 to be able to make a linear alternative movement and has a terminal part that makes linear contact on the circumferential surface of the piston swivel 50 to convert the compression space P of the cylinder 40 in a suction zone (a) and a compression space (b) of according to the rotation of the rotation axis 30.

Reference number 11 of the drawings designates a discharge tube, 12 designates a suction tube, 42 designates a suction opening, 71 designates an opening of discharge, 90 designates a discharge orifice, 100 designates means of opening / closing, and S designates a spring.

As shown in Figure 5, fin 120 is formed to have a thickness that corresponds to the groove width 41 and a square shape, and fin 120 includes a fin preform 121 in which a curved surface is placed C formed to present a curvature so that one side makes linear contact on the outer surface of the rotating piston 50, and fiber 122 that is inserted inside the fin preform 121, to reinforce preform performance fin 121.

Fin preform 121 is made of carbon materials and fiber 121 is formed by arranging a plurality of wire-shaped fiber threads presenting a default length in the same direction as the address of Fin preform 121 movement in a row.

That is, fin preform 121 is formed inserting a plurality of fiber threads in the direction of linear movement of fin preform 121 or arranging the plurality of fiber threads.

As another embodiment of fiber 122, such as shown in figure 6, fiber 122 is formed as a network of finished fibers and the fiber network is inserted to fit arranged on a curved surface the same as the curved surface of fin preform 121.

That is, the fiber network that has an area corresponding to the area of the fin preform 121 is inserted into the fin preform 121.

As another embodiment of fiber 122, such as shown in figure 7, a plurality of first f1 fiber wires in the form of wire of a predetermined length in the direction of movement of the fin preform 121 in a row, and second fiber threads having a length are arranged predetermined radially along one direction circumferential in the area of the curved surface of the part inside the curved surface C of the fin preform 121.

As another embodiment of the present invention, as shown in figure 8, fin preform 221 is made of graphite materials, and fiber 122 is formed arranging a plurality of fiber threads in the form of wire which have a predetermined length in the direction of movement of the preform of fin 121 in a row.

That is, fin preform 221 is formed inserting a plurality of fiber threads in the linear direction of the movement of the fin preform 221 or arranging the plurality of fiber threads.

Still as another embodiment of the present invention, as shown in figure 9, the fiber is formed as a network of fibers of finished form and the plurality of fiber networks are inserted on the same surface as that of the fin preform 221.

That is, the fiber network that has an area corresponding to the area of the fin preform 221 is inserted into the fin preform 221.

As another embodiment of fiber 122, such as shown in figure 10, a plurality of first f1 fiber wires in the form of wire having a length predetermined in the direction of movement of the preform of fin 221 in a row, and second fiber threads are arranged that have a predetermined length radially along a circumferential direction in the area of the curved surface of the inner part of the curved surface C of the fin preform 221

Still as another embodiment of the present invention, as shown in figure 11, the preform of Fin 321 is made of an aluminum alloy.

Still as another embodiment of the present invention, fin preforms 121, 221 and 321 may be made of resin materials, such as PEEK, polyamide, carbon, epoxy and the like.

As a procedure for manufacturing fin 120 which is composed of fin preform 121 and fiber 122, there is a process for manufacturing the fin 120 forming a mold of fiber with fiber thread or a network of fibers that form a fiber 122 inside a mold that can take the form of the fin preform 121, and then solidifying by pouring the fin preform 121 cast in the mold.

Flap 120 composed of the fin preform 121 and fiber 122 is inserted into groove 41 of cylinder 40 to that the curved surface C make contact on the surface circumferential of the rotating piston 50, and the fin 120 inserted in the groove 41 of the cylinder 40 it is held elastically by the spring S.

The operational effect is described below. of the fin for the compressor according to the present invention.

First, in the operation of the compressor, when the rotation axis 30 rotates as the force motor drive is transmitted to the axis of rotation 30, the rotating piston 50 which is coupled to the eccentric zone 31 of the axis of rotation rotates at the base of the center of the axis in the space of P compression of the cylinder under the condition that it contacts fin 120.

As the rotating piston 50 rotates, the volume of the compression space P of the cylinder 40 is modified by a linear reciprocating movement of the fin 120. That is, as the compression space P becomes a suction zone ( a) and a compression zone (b), low temperature and pressure refrigerant gas is sucked into the compression space P of the cylinder 40 through the suction tube 12 and the discharge opening 42, is compressed, discharged through the discharge opening 43 and the discharge hole 71, and then discharged to the outside of the airtight housing 10 through the
download 11.

In the process mentioned above, fin 120 performs a linear alternative movement that receives pressure in the lateral direction due to pressure difference between the suction zone (a) and the compression zone (b) of the compression space P, and the curved surface C of fins 120 makes contact on the surface circumferential of the rotating piston 50 which is held elastically by the spring S.

Under the condition cited above, the fin 120 is composed of fin preforms 121, 221 and 321 and fiber 122, reduces the amount of abrasion between the fin and the parts that perform relative motion with fin 120, and minimize vibration generation by friction contact.

That is, in case the fin preform 121, 221 and 321 of fin 120 are made of carbon or graphite, carbon and graphite gain self-lubrication, and the vibration generated when fin 120 and the pieces that perform the relative movement perform the sliding movement by the fiber 122 inserted in fin preforms 121, 221 and 321 Made of carbon or graphite.

When fiber 122 is arranged in the preforms of fin 121, 221 and 321 in the same direction as the address of movement of fins 120 and inserted, or can be inserted, into finished form, thus effectively supports the force generated by the difference in compression between the suction zone (a) and the compression zone (b) of the compression space P of the cylinder 40

Also, in case the fin preforms 121, 221 and 321 of fin 120 are made of resin or a aluminum alloy, plasticity is improved and the fin molding 120. In addition, weight and movement are reduced It can be done smoothly.

Also, the vibration that is generated according with the movement of the fin 120 by the fiber 122 inserted in the fin preforms 121, 221 and 321 made of resin or alloy aluminum can be absorbed effectively and the structural strength

In the present invention, the fin of the compression is inserted into the groove of the cylinder and performs a linear reciprocating movement as the piston rotates rotary. Therefore, abrasion resistance and fin absorbency to displace the compression space of the cylinder towards the suction zone and the compression zone can to get well. Therefore, the damage of the fin and the pieces that perform relative movement with the fin can be avoided and can Increase reliability by reducing vibration noise. Also, as the weight can be lightened, the linear movement it can be done smoothly and the energy source can be reduced input

Claims (2)

1. Compressor flap comprising: a fin preform (121) that is inserted in a groove (41) of a cylinder (40) having a space of compression (P), has a predetermined thickness and area for split the compression space of the cylinder into an area of suction (a) and a compression zone (b), and has a side of linear contact in a rotating piston (50), making a linear reciprocating movement according to the piston rotation rotating (50), making linear contact on the rotating piston (50) which is located in the compression space of the cylinder (40); characterized in that it further comprises fiber (122) that is inserted inside the fin preform (121) and formed in the same direction as the direction of movement of the fin (121). 2. Fin according to claim 1, characterized in that the fiber (122) is formed by arranging a plurality of fiber threads in a row in the same direction as that of the fin preform (121).