CN217129788U

CN217129788U - Heat pump compressor structure for vehicle

Info

Publication number: CN217129788U
Application number: CN202220649844.9U
Authority: CN
Inventors: 王蒙; 李庆才; 刘亚南
Original assignee: Zhejiang Lingsheng Power Technology Co Ltd
Current assignee: Zhejiang Lingsheng Power Technology Co Ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-08-05
Anticipated expiration: 2032-03-23

Abstract

The utility model discloses an automobile-used heat pump compressor structure, install in the vortex dish of the main casing body including the main casing body and butt, the vortex dish forms the cavity that is used for the installation to move the vortex dish including the vortex dish and the static vortex dish that move of mutually supporting, static vortex dish and main casing body butt joint back, it includes quotation and sets up the vortex tooth in the quotation to move the vortex dish, be provided with round platform class on the wall all around of static vortex dish, the axis of the static vortex dish of step face perpendicular to of platform class, the step face is parallel and level with the one side parallel and level of the vortex tooth that faces away from of quotation. The fixed scroll is additionally provided with a step layer, and the step surface of the step layer is flush with the surface of the plate surface, which is back to the scroll teeth, so that the step surface and the plate surface of the movable scroll are simultaneously abutted against the main shell, a size reference is formed in a matching way, a shorter size chain is formed, and the tolerance accumulation is reduced.

Description

Heat pump compressor structure for vehicle

Technical Field

The utility model relates to a compressor technical field is an automobile-used heat pump scroll compressor structure particularly.

Background

The assembly dimension chain is a dimension chain which is formed by relevant dimensions (surface or axial distance) or mutual position relations (parallelism, perpendicularity or coaxiality) of relevant parts in the assembly process of products or components. It is basically characterized by having the sealing property, namely a closed ring and a size chain formed by a plurality of combined rings, which are in a closed figure. The closed ring is not the size of parts or components, but the relative position size of different parts or components, and the closed ring cannot be independently changed, but is formed finally in the assembling process, namely the assembling precision.

In the assembly process of the compressor, when the size chain is long, the tolerance accumulation is large, the control of the assembly precision is not facilitated, and the difficulty of tolerance distribution is increased, for example, in the existing assembly scheme, as shown in fig. 1, a0 is the fit clearance between the tooth top of the fixed scroll and the tooth bottom of the movable scroll of the compressor. The fit clearance is high in requirement, the fit clearance cannot be too large, the refrigerant oil can be fully filled in the interval in the running process of the compressor, leakage of refrigerant gas is prevented from being formed under the action of pressure difference, axial sealing is achieved, meanwhile, the fit clearance cannot be too small, contact between the tooth top of the fixed scroll and the tooth bottom of the movable scroll is prevented, a large friction pair is formed, and the performance and the service life of the compressor are affected. The fit clearance A0= A1-A2-A3-A4, and the formed size chain is longer than the assembled size chain, and the tolerance accumulation is larger.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem that automobile-used heat pump scroll compressor size chain length assembly precision is not enough among the prior art, the utility model provides an automobile-used heat pump compressor structure of assembly size chain length has been reduced.

The utility model discloses a realize through following technical scheme:

the utility model provides a heat pump compressor structure for vehicle, includes the main casing body and the vortex dish of butt installation in the main casing body, and the vortex dish is including the vortex dish and the static vortex dish of moving that mutually support, forms the cavity that is used for installing the vortex dish after static vortex dish and the main casing body butt joint, move the vortex dish and include quotation and the vortex tooth of setting on the quotation, be provided with round step level on the wall all around of static vortex dish, the step face of step level perpendicular to static vortex dish's axis, the step face is parallel and level with the one side of the back of quotation vortex tooth.

The fixed scroll is additionally provided with a step layer, and the step surface of the step layer is flush with the surface of the plate surface, which is back to the scroll teeth, so that the step surface and the plate surface of the movable scroll are simultaneously abutted against the main shell, a size reference is formed in a matching way, a shorter size chain is formed, and the tolerance accumulation is reduced.

Preferably, the movable scroll is in contact with the main casing, and a wear-resistant piece is arranged at the contact position to prevent excessive wear between the movable scroll and the main casing.

Preferably, the wear-resistant sheet covers the step surface, and the step surface is directly matched with the wear-resistant sheet to form a dimensional standard.

Preferably, the one side that the main casing body is used for the butt vortex dish is provided with the butt platform, and the side that the protruding main casing body of butt platform and butt platform is higher than the wall phase-match of step face with the static vortex dish for main casing body one end only need set up the butt platform, need not more steps that are used for the installation, reduces the processing degree of difficulty.

Preferably, the abutting table is provided with a plurality of anti-rotation columns on one side facing the vortex disc, the wear-resistant plate and the movable vortex disc are provided with corresponding positioning holes, and the anti-rotation columns limit the rotation of the movable vortex disc and facilitate the installation of the wear-resistant plate and the movable vortex disc.

Preferably, the movable scroll is provided with a cylindrical groove surrounding the anti-rotation column at the positioning hole, and the anti-rotation column abuts against the side wall of the groove to limit the movement of the movable scroll.

Preferably, the left circle of groove and the right circle of groove are formed in the side face of the abutting table and used for installing a sealing ring and improving sealing performance.

Compared with the prior art, the utility model has the advantages that:

the static scroll plate is additionally provided with a step layer, the step surface of the step layer is flush with the surface of the plate surface, facing away from the scroll teeth, and the step surface and the plate surface of the movable scroll plate are simultaneously abutted against the main shell body to form a size reference in a matching manner, so that a shorter size chain is formed, and the accumulation of tolerance is reduced.

Drawings

FIG. 1 is a schematic side cross-sectional view of a prior art product;

FIG. 2 is an exploded perspective view of a prior art product;

fig. 3 is a schematic side sectional view of a first embodiment of the present invention;

fig. 4 is an exploded perspective view of a first embodiment of the present invention;

fig. 5 is a schematic perspective view of the first embodiment of the present invention after removing the main housing.

In the figure: the main casing 1, the abutting table 11, the groove 111, the anti-rotation column 112, the movable scroll 2, the disc surface 21, the positioning hole 22, the cylindrical groove 23, the fixed scroll 3, the step layer 31, the step surface 311 and the wear-resistant sheet 4.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, how to implement the present invention is further explained below with reference to the accompanying drawings and the detailed description.

In a first embodiment, as shown in fig. 1 to 5, a heat pump compressor structure for a vehicle includes a main housing 1 and a scroll plate mounted in the main housing in an abutting manner, the scroll plate includes a movable scroll plate 2 and a fixed scroll plate 3 that are matched with each other, the fixed scroll plate 3 and the main housing 1 are abutted to form a cavity for mounting the movable scroll plate 2, the movable scroll plate 2 includes a plate surface 21 and scroll teeth disposed on the plate surface 21, a ring of step layers 31 are disposed on peripheral wall surfaces of the fixed scroll plate 3, step surfaces 311 of the step layers 31 are perpendicular to an axis of the fixed scroll plate 3, the step surfaces 311 are flush with a surface of the plate surface 21 facing away from the scroll teeth, the movable scroll plate 2 abuts against the main housing 1, wear-resistant pieces 4 are disposed at abutting positions, and the step surfaces 311 are covered by the wear-resistant pieces 4.

Compared with the original structure in fig. 1 and 2, the fixed scroll 3 is added with a step 31, the step surface 311 of the step 31 is flush with the surface of the plate surface facing away from the scroll wrap, therefore, the step surface 311 and the plate surface of the movable scroll 2 are simultaneously abutted against the main casing 1 through the wear-resistant sheet 4, the step surface 311 of the fixed scroll 3 is matched with the wear-resistant sheet 4 to form a size reference, and a shorter size chain is formed, namely, the matching gap a0= a1-a2, therefore, the influence factor of the size is a1 and a2, the same closed loop is formed, and the formed size chain is shorter according to the shortest principle of the size chain, so that the tolerance distribution is facilitated. And the shell structure is simpler and easy to process.

One surface of the main shell 1, which is used for abutting against the scroll, is provided with an abutting table 11, the abutting table 11 protrudes out of the main shell 1, and the side surface of the abutting table 11 is matched with the wall surface of the fixed scroll 3, which is higher than the step surface 311, so that one end of the main shell 1 only needs to be provided with the abutting table 11, more steps for installation are not needed, and the processing difficulty is reduced; and a circle of grooves 111 are formed in the left and right sides of the side surface of the abutting table 11 and used for installing sealing rings and increasing the sealing performance.

The abutting table 11 is provided with a plurality of anti-rotation columns 112 on one side facing the scroll, as shown in fig. 5, the wear-resistant plate 4 and the movable scroll 2 are provided with corresponding positioning holes 22, and the anti-rotation columns limit the rotation of the movable scroll and facilitate the installation of the wear-resistant plate 4 and the scroll. The movable scroll 2 is provided with a cylindrical groove 23 surrounding the anti-rotation column at the positioning hole, and the anti-rotation column abuts against the side wall of the cylindrical groove 23 to limit the movement of the movable scroll 2.

Claims

1. The utility model provides a heat pump compressor structure for vehicle, includes the main casing body and the vortex dish of butt installation in the main casing body, and the vortex dish is including the vortex dish and the static vortex dish that move that mutually support, forms the cavity that is used for installing to move the vortex dish after static vortex dish and the main casing body butt joint, its characterized in that, it includes quotation and the vortex tooth of setting on the quotation to move the vortex dish, be provided with round step on the wall all around of static vortex dish, the step surface of step perpendicular to static vortex dish's axis, the step surface is parallel and level with the one side parallel and level of the vortex tooth that dorsad of quotation.

2. The vehicular heat pump compressor structure according to claim 1, characterized in that: the movable scroll is abutted against the main shell, and the abutting part is provided with a wear-resistant sheet.

3. The heat pump compressor structure for a vehicle according to claim 2, characterized in that: the wear-resistant sheet covers the step surface.

4. The heat pump compressor structure for vehicles according to claim 2 or 3, characterized in that: the main casing body is used for the one side of butt vortex dish to be provided with the butt platform, and the side of the protruding main casing body of butt platform and butt platform is higher than the wall phase-match of step face with static vortex dish.

5. The vehicular heat pump compressor structure according to claim 4, characterized in that: the butt joint platform is provided with a plurality of anti-rotation columns on one side facing the vortex plate, and the wear-resisting plate and the movable vortex plate are provided with corresponding positioning holes.

6. The vehicular heat pump compressor structure according to claim 5, characterized in that: the movable scroll is provided with a cylindrical groove surrounding the anti-rotation column at the positioning hole, and the anti-rotation column abuts against the side wall of the groove.

7. The vehicular heat pump compressor structure according to claim 6, wherein: and a circle of groove is formed on the left side and the right side of the side surface of the abutting table.