CN220726582U - Impurity-resistant vortex plate - Google Patents

Abstract

The utility model provides an impurity-resistant vortex disc, which comprises a static vortex disc, wherein the static vortex disc comprises a wall-shaped static vortex disc vortex molded line and an exhaust hole positioned at the center of the static vortex disc, the static vortex disc vortex molded line spirally extends outwards from the exhaust hole, the dynamic vortex disc comprises a step surface and a dynamic vortex disc vortex molded line spirally extending outwards along the center of the step surface, the dynamic vortex disc vortex molded line is nested to the static vortex disc vortex molded line, the static vortex disc vortex molded line is contacted with the step surface, and a notch is formed on the upper end face of the static vortex disc vortex molded line, which is close to one end of the exhaust hole. When impurities in the system are sucked into the vortex plate, the impurities move to the exhaust hole due to the movement of the vortex plate, are temporarily stored at the notch, cannot be clamped at the notch to cause abrasion and damage of the tooth-shaped part of the vortex molded line of the static vortex plate, and can improve the durability of the vortex plate.

Description

Impurity-resistant vortex plate

Technical Field

The utility model relates to an impurity-resistant vortex plate.

Background

An air conditioning compressor is a core component of an air conditioning system, and an internal scroll thereof is an important component thereof. A scroll (or screw compressor) is a device for compressing gas and is widely used in large commercial and industrial air conditioning systems. The compressor in an air conditioning system is responsible for drawing in and compressing low pressure, low temperature gas (typically refrigerant) into a high temperature, high pressure gas, which is then cooled and condensed into a liquid by releasing heat through a condenser. The high-pressure and high-temperature liquid refrigerant evaporates in the evaporator and absorbs heat, thereby realizing the refrigeration effect. The scroll compressor employs a pair of spiral orbiting scrolls, one of which is a movable spiral plate and the other of which is a fixed spiral plate. The refrigerant passes through the gap between the two spiral disks and the gas is gradually compressed as the spiral disks rotate. This design achieves a smoother, more efficient compression process and a scroll compressor that is capable of providing refrigerant more continuously than conventional reciprocating compressors. Scroll compressors have several advantages over conventional reciprocating compressors, including lower vibration and noise levels, higher efficiency, fewer wearing parts, and the like. Because of its relatively smooth operating characteristics, it is commonly used in large commercial buildings, industrial facilities, and refrigeration cold chains, etc. where efficient and stable refrigeration is required.

In view of this, chinese patent publication (publication No. CN215256780U, hereinafter, referred to as document 1) discloses a combined structure of a main body for a scroll compressor, which is composed of a sealing cover and a main body of the main body; the main shaft of the vortex compressor passes through the through holes on the middle machine body and the sealing cover; one side of the middle machine body is connected with the movable disc, and the other side is fixedly connected with the sealing cover; the middle machine body, the movable disc, the sealing cover and the main shaft form a closed inner cavity together; the main shaft balance block and the main bearing are positioned in the closed inner cavity; the main shaft is limited by the main bearing to move radially and drives the main shaft balance block and the movable disc to rotate. The present utility model also includes a scroll compressor. The utility model utilizes the closed cavity to form the back pressure of the movable disc, ensures the sealing and abrasion compensation of the movable vortex, reduces leakage and improves the performance of the compressor. Meanwhile, an oil pool is formed in the closed cavity, and the main shaft balance block is utilized to disturb liquid lubricating oil to forcedly lubricate the moving parts.

The disadvantage of document 1 is that the end surfaces of the teeth of the scroll (i.e., the end surfaces of the scroll lines of the movable scroll and the fixed scroll) are generally planar, and if the cleanliness in an air conditioning system is poor and the impurities are large, abrasion of the end surfaces of the teeth of the scroll occurs, and long-term operation can affect the service life of the scroll.

Disclosure of Invention

The utility model aims to overcome the defects that a vortex molded line is easily worn and the durability is low due to environmental reasons in the vortex plate in the prior art, and provides an impurity-resistant vortex plate with better durability.

The utility model solves the technical problems by the following technical scheme:

the utility model provides an anti impurity's vortex dish, its characterized in that includes, quiet vortex dish is including wall form quiet vortex dish vortex molded line, and be located the exhaust hole in quiet vortex dish's center, quiet vortex dish vortex molded line by exhaust hole department outwards spiral extends, moves the vortex dish, move the vortex dish including the step face, and follow the outside spiral extension's of center department of step face moves vortex dish vortex molded line, move vortex dish vortex molded line nestification extremely quiet vortex dish vortex molded line, quiet vortex dish vortex molded line with step face contact, quiet vortex dish vortex molded line is close to be formed with the breach on the up end of the one end of exhaust hole. When impurities in the system are sucked into the vortex plate, the impurities move to the exhaust hole due to the movement of the vortex plate, are temporarily stored at the notch, cannot be clamped at the notch to cause abrasion and damage of the tooth-shaped part of the vortex molded line of the static vortex plate, and can improve the durability of the vortex plate.

Preferably, the outer side of the vortex line of the fixed vortex disc is surrounded by a side wall, and a plurality of openings for air intake are formed in the side wall. Providing multiple inlets from the side wall may facilitate the removal of impurities along the opening or into the vent holes quickly.

Because the one end that moves vortex dish vortex molded lines and is close to the exhaust hole can the repetitive motion be close to the one end that still vortex dish vortex molded lines are close to the exhaust hole, preferably, move also be formed with the breach on the up end that vortex dish vortex molded lines are close to the one end of exhaust hole, can further prevent wearing and tearing.

In order to keep better air tightness, so that impurities cannot be clamped in a gap between the movable vortex disc and the fixed vortex disc in advance, preferably, the fixed vortex disc vortex molded line and the upper end face of the movable vortex disc vortex molded line are both formed with sealing grooves, and sealing strips are arranged in the sealing grooves.

Preferably, the notch formed on the upper end surface of the vortex line of the fixed vortex disc is formed on one side of the vortex line of the fixed vortex disc, which is inward. So that impurities can be driven to the inner exhaust hole.

In summary, the impurities move to the exhaust hole due to the movement of the scroll, are temporarily stored in the notch, and cannot be blocked at the notch to cause abrasion damage to the tooth-shaped part of the scroll molded line of the fixed scroll, so that the durability of the scroll can be improved.

Drawings

Fig. 1 is a schematic structural view of a fixed scroll according to an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a fixed scroll according to an embodiment of the present utility model in a plan view.

Fig. 3 is a schematic structural view of an orbiting scroll according to an embodiment of the present utility model.

Detailed Description

The utility model will now be more fully described by way of example only, with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a fixed scroll 10 according to an embodiment of the present utility model, fig. 2 is a schematic structural view of the fixed scroll 10 according to an embodiment of the present utility model in a plan view, and fig. 3 is a schematic structural view of an orbiting scroll according to an embodiment of the present utility model. As shown in fig. 1 to 3, the anti-impurity scroll according to the present utility model includes a fixed scroll 10, the fixed scroll 10 includes a fixed scroll line 11 having a wall shape, and an exhaust hole 16 at the center of the fixed scroll 10, the fixed scroll line 11 spirally extends outward from the exhaust hole, a movable scroll 20, the movable scroll 20 includes a stepped surface 23, and a movable scroll line 21 spirally extending outward along the center of the step surface 23, the movable scroll line 21 being nested to the fixed scroll line 11, the fixed scroll line 11 being in contact with the step surface 23, a notch 12 being formed on an upper end surface of the fixed scroll line 11 near one end of the exhaust hole 16. When impurities in the system are sucked into the vortex plate, the impurities move to the exhaust hole 16 due to the movement of the vortex plate, are temporarily stored at the notch 12, cannot be blocked at the position to cause abrasion and damage of the tooth-shaped part of the vortex line 11 of the static vortex plate, and can improve the durability of the vortex plate.

The exhaust hole 16 is connected to a downstream component of the air compressor, air enters the scroll through an air inlet opening, the movable scroll 20 rotates around the exhaust hole, each position of the movable scroll profile 21 sequentially engages with the fixed scroll profile 11 to rotate like a hula hoop, and compressed air is exhausted from the exhaust hole 16.

Preferably, the outer side of the vortex line 11 of the fixed vortex disk is surrounded by a side wall 13, and a plurality of openings 15 for air intake are arranged on the side wall 13. Providing multiple inlet air from the side wall 13 may facilitate the removal of impurities along the opening 15 or into the vent hole 16 quickly.

Because the end of the movable scroll line 21 near the exhaust hole 16 will repeatedly move to approach the end of the fixed scroll line 11 near the exhaust hole 16, the upper end surface of the movable scroll line 21 near the exhaust hole 16 is preferably also formed with a notch 22, which can further prevent abrasion.

Specifically, in the present utility model, the notch may be formed in a stepped or stepped shape or may be partially missing.

In order to maintain better air tightness so that impurities are not caught in the gap between the movable scroll 20 and the fixed scroll 10 in advance, it is preferable that seal grooves 14 and 24 are formed in upper end surfaces of the fixed scroll line 11 and the movable scroll line 21, respectively, and seal strips are provided in the seal grooves 14 and 24.

Preferably, a notch formed on the upper end surface of the fixed scroll line 11 is formed on one side of the fixed scroll line 11 inward. This can drive the impurities toward the inner exhaust hole 16. The inner side here means the side close to the exhaust hole, i.e. the inner side close to the center.

The foregoing is merely illustrative of the present utility model and is not intended to limit the scope of the utility model, i.e. all equivalent changes and modifications that may be made in accordance with the scope of the utility model as defined in the appended claims should fall within the scope of the utility model.

Claims (5)

1. An impurity resistant scroll, characterized in that it comprises,

the fixed vortex disk comprises a wall-shaped fixed vortex disk vortex molded line and

the exhaust hole is positioned at the center of the fixed vortex disc, the vortex line of the fixed vortex disc spirally extends outwards from the exhaust hole,

the movable vortex disk comprises a step surface and a movable vortex disk vortex molded line which spirally extends outwards along the center of the step surface,

the movable vortex plate vortex molded line is nested to the fixed vortex plate vortex molded line, the fixed vortex plate vortex molded line is contacted with the step surface,

and a notch is formed on the upper end face of the vortex molded line of the fixed vortex disc, which is close to one end of the exhaust hole.

2. The anti-impurity scroll according to claim 1, wherein,

the outside of quiet vortex dish vortex molded lines is surrounded by a lateral wall, be provided with a plurality of opening that are used for admitting air on the lateral wall.

3. An impurity resistant scroll as recited in claim 2, wherein,

and a notch is formed on the upper end surface of the vortex line of the movable vortex disc, which is close to one end of the exhaust hole.

4. The anti-impurity scroll according to claim 3, wherein,

and sealing grooves are formed in the upper end faces of the fixed vortex plate vortex molded line and the movable vortex plate vortex molded line, and sealing strips are arranged in the sealing grooves.

5. The anti-impurity scroll according to claim 4, wherein,

and a notch formed on the upper end surface of the vortex molded line of the fixed vortex disk is formed on one side of the vortex molded line of the fixed vortex disk, which is inwards.