CN217300906U - Front cover structure and scroll compressor - Google Patents

Abstract

The utility model provides a protecgulum structure and scroll compressor relates to compressor technical field. The utility model provides a front cover structure, which comprises a front cover and a back cover; a scroll front cover and a housing; one end of the shell is provided with an opening, and the vortex disc front cover is arranged in the shell and fixedly connected with the shell. The utility model provides a protecgulum structure and scroll compressor have solved the whirlpool dish protecgulum and have rocked in the casing, lead to the problem that whole irregular motion appears in the inside motion of compressor mechanism.

Description

Front cover structure and scroll compressor

Technical Field

The utility model belongs to the technical field of the compressor technique and specifically relates to a protecgulum structure and scroll compressor are related to.

Background

The scroll compressor is composed of movable scroll and static scroll, and features simple structure, small size, simple operation, easy automation and low noise.

The position of the scroll disk front cover is positioned between the shell and the scroll disk front cover of the existing scroll compressor through clearance fit, but because a clearance is formed between the shell and the scroll disk front cover, the condition that the scroll disk front cover shakes in the shell exists, and along with the operation of the scroll compressor, the irregular motion of the whole motion part of the compressor is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protecgulum structure and scroll compressor to alleviate the whirlpool dish protecgulum that exists among the prior art and rock in the casing, lead to the problem of whole irregular motion to appear in the inside motion of compressor mechanism.

In order to solve the technical problem, the utility model provides a technical scheme lies in:

the embodiment of the utility model provides a front cover structure, which comprises a front cover and a rear cover; a scroll front cover and a housing;

one end of the shell is provided with an opening, and the vortex disc front cover is arranged in the shell and fixedly connected with the shell.

As a further technical scheme, the outer wall of the scroll front cover is abutted against the inner wall of the shell.

As a further technical scheme, the scroll disk front cover is an open shell, and the open end of the scroll disk front cover is arranged close to one end of the shell with an opening.

As a further technical scheme, the end face of the opening end of the scroll front cover is flush with the end face of the opening arranged on the shell.

As a further technical scheme, the scroll front cover comprises a front cover bearing cavity and a movable scroll bearing cavity;

the movable vortex disc bearing cavity is arranged at the opening end of the vortex disc front cover, and the front cover bearing cavity is arranged between the bottom wall of the vortex disc front cover and the movable vortex disc bearing cavity.

As a further technical scheme, a front cover bearing cavity is communicated with the movable scroll disk bearing cavity, and the diameter of the front cover bearing cavity is smaller than that of the movable scroll disk bearing cavity.

As a further technical scheme, the bottom wall of the vortex disc front cover is provided with a through hole, and the through hole is communicated with a front cover bearing cavity.

The scroll compressor provided by the embodiment of the utility model comprises a shell; a rotating shaft, a movable vortex disk, a static vortex disk and a front cover structure; the movable scroll disk and the static scroll disk are in relative sealing connection, and one end of the movable scroll disk is arranged at the opening end of the scroll disk front cover in the front cover structure and is connected with the rotating shaft.

As a further technical scheme, the orbiting scroll is provided with an orbiting shaft connecting cavity:

the rotating shaft connecting cavity is arranged at one end of the movable vortex disc, which is far away from the static vortex disc, and the rotating shaft is arranged in the rotating shaft connecting cavity.

As a further technical scheme, the scroll compressor also comprises a connecting assembly, wherein the connecting assembly comprises a front cover bearing and a movable scroll bearing;

the front cover bearing and the movable scroll disc bearing are fixedly sleeved at one end of the rotating shaft and are both arranged on the scroll disc front cover.

Compared with the prior art, the utility model provides a protecgulum structure and vortex compressor have the technical advantage to be:

the utility model provides a front cover structure which comprises a vortex disc front cover and a shell; one end of the shell is provided with an opening, and the vortex disc front cover is arranged in the shell and fixedly connected with the shell. Vortex disk protecgulum and casing fixed connection avoid clearance fit between the two, at scroll compressor during operation, can avoid vortex disk protecgulum to rock in the casing, cause the inside motion mechanism of compressor to take place irregular motion, promote the stability and the reliability of scroll compressor during operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the embodiments or related technologies will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a cross-sectional view of a front cover structure provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of (part of) a scroll compressor provided by an embodiment of the present invention;

fig. 3 is a cross-sectional view illustrating a connection between a rotating shaft and a movable scroll in a scroll compressor according to an embodiment of the present invention.

Icon: 100-scroll front cover; 110-front cover bearing cavity; 120-orbiting scroll bearing cavity; 130-a through hole;

200-a housing;

300-a connection assembly; 320-front cover bearing; 330-orbiting scroll bearing;

400-orbiting scroll; 410-rotating shaft connection cavity;

500-rotation axis.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.

Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The embodiment of the utility model provides a front cover structure, which comprises a scroll front cover 100 and a shell 200;

an opening is formed at one end of the housing 200, and the scroll front cover 100 is installed in the housing 200 and fixedly connected to the housing 200.

Specifically, as shown in fig. 1, the scroll front cover 100 is fixedly connected in the housing 200, the fixed connection mode may be welding, connection with a threaded connector, or key connection, or the scroll front cover 100 and the housing 200 may be directly integrally formed, and the fixed connection mode may be selected according to a specific structure. Because whirlpool dish protecgulum 100 fixed connection can avoid clearance fit between whirlpool dish protecgulum 100 and the casing 200 in the casing 200, when scroll compressor during operation, can avoid whirlpool dish protecgulum 100 to rock in casing 200, cause the interior motion of compressor to take place random motion, promote the stability and the reliability of scroll compressor during operation.

The embodiment of the utility model provides a scroll compressor includes: a rotation shaft 500, an orbiting scroll 400, a fixed scroll, and a front cover structure; the orbiting scroll 400 is relatively hermetically connected with the fixed scroll, and the orbiting scroll 400 is disposed at an opening end of the scroll front cover 100 in the front cover structure and is drivingly connected with the rotation shaft 500.

Specifically, as shown in fig. 2 and 3, the orbiting scroll 400 and the fixed scroll are arranged in a sealing manner, the fixed scroll is fixed in a position opposite to an opening end of the scroll front cover 100, and the rotating shaft 500 is fixedly connected to an end of the orbiting scroll 400 away from the fixed scroll. When the scroll compressor works, the rotating shaft 500 drives the movable scroll 400 to move around the axis of the rotating shaft 500, a compression cavity is formed between the movable scroll 400 and the fixed scroll due to the relative position of the open end of the fixed scroll and the scroll front cover 100, fluid between the movable scroll 400 and the fixed scroll is compressed as the volume of the compression cavity is reduced, the movable scroll 400 and the fixed scroll are arranged in a relatively sealed manner, and the sealing property of the compression cavity and the working efficiency of the scroll compressor are ensured; the movable scroll 400 is arranged at the opening end of the scroll front cover 100, and because the scroll front cover 100 in the front cover structure is fixedly connected with the shell 200, when the rotation shaft 500 drives the movable scroll 400 to move along the axis of the rotation shaft 500, the scroll front cover 100 can be prevented from shaking in the shell 200, so that the inner movement mechanism of the compressor generates irregular movement, and the stability and reliability of the scroll compressor during working are improved.

In an optional technical solution of this embodiment, an outer wall of the scroll front cover 100 abuts against an inner wall of the casing 200.

Specifically, as shown in fig. 1, the scroll front cover 100 and the housing 200 are fixedly connected in an interference fit manner, and the inner wall of the housing 200 is in interference fit with the outer wall of the scroll front cover 100 without using other connecting members, so that the processing difficulty of the scroll front cover 100 and the housing 200 is reduced. When the scroll compressor works, the rotation shaft 500 drives the movable scroll 400 to move along the axis of the rotation shaft 500, and due to the interference fit between the scroll front cover 100 and the shell 200, the scroll front cover 100 can be prevented from shaking in the shell 200, so that the internal movement mechanism of the compressor can move irregularly, and the stability and the reliability of the scroll compressor during working can be improved.

In an optional technical solution of this embodiment, the scroll front cover 100 is an open-ended housing, and the open end of the scroll front cover 100 is disposed near one end of the housing 200 where the opening is disposed.

Specifically, as shown in fig. 1 and fig. 2, a rotation shaft 500 is fixedly connected to an end of the movable scroll 400 away from the fixed scroll, a scroll front cover 100 is installed toward an end of the housing 200 where an opening is formed, the scroll front cover 100 is provided with a connection hole, one end of the rotation shaft 500 passes through the connection hole on the scroll front cover 100 and is fixedly connected to the movable scroll 400 arranged at the opening end of the scroll front cover 100, and one end of the rotation shaft 500 is located at an end of the housing 200 away from the scroll front cover 100; the rotating shaft 500 is integrated in the housing 200, and when the rotating shaft 500 drives the movable scroll 400 to move, the sealing performance between the movable scroll 400, the scroll front cover 100 and the housing 200 is ensured, and the working efficiency of the scroll compressor is improved.

In an alternative solution of this embodiment, an end surface of the open end of scroll front cover 100 is flush with an end surface of casing 200 provided with an opening.

Specifically, as shown in fig. 1 and fig. 2, an opening end of the scroll front cover 100 is in interference fit with an opening end of the casing 200, and two end faces are flush, so that the processing difficulty and the installation difficulty of the scroll front cover 100 and the casing 200 are reduced; and the scroll compressor also comprises other shells, the open ends of the other shells and the end face of the shell 200 with the opening are fixedly and hermetically connected to form a sealed cavity, the sealed cavity ensures the sealing performance of the scroll compressor during working, prevents fluid in the compression cavity from leaking, and ensures the working efficiency and the volume efficiency of the compressor, the scroll front cover 100 is in interference fit with the shell 200, so that the situation that the rotating shaft 500 drives the movable scroll 400 to move to cause shaking among all parts during working of the scroll compressor is avoided, and the stability and the reliability of the scroll compressor during working are improved.

In an optional technical scheme of the embodiment, the scroll front cover 100 comprises a front cover bearing cavity 110 and an orbiting scroll bearing cavity 120;

an orbiting scroll bearing chamber 120 is provided at an opening end of the scroll front cover 100, and a front cover bearing chamber 110 is provided between a bottom wall of the scroll front cover 100 and the orbiting scroll bearing chamber 120.

The front cover bearing cavity 110 communicates with the orbiting scroll bearing cavity 120, and the diameter of the front cover bearing cavity 110 is smaller than that of the orbiting scroll bearing cavity 120.

The bottom wall of the scroll front cover 100 is provided with a through hole 130, and the through hole 130 communicates with the front cover bearing chamber 110.

Specifically, as shown in fig. 1 to 3, an open end of the scroll front cover 100 is provided with a movable scroll bearing cavity 120, a through hole 130 is formed in a bottom wall of the scroll front cover 100, a front cover bearing cavity 110 is formed between the through hole 130 and the movable scroll bearing cavity 120, the front cover bearing cavity 110 and the movable scroll bearing cavity 120 are both communicated with the through hole 130, the diameter of the through hole 130 is adapted to the diameter of the rotating shaft 500, the diameters of the front cover bearing cavity 110 and the movable scroll bearing cavity 120 are larger than the diameter of the through hole 130, and the diameter of the front movable scroll bearing cavity 120 is larger than the diameter of the front cover bearing cavity 110; the rotating shaft 500 passes through the through hole 130 to be fixedly connected with the movable scroll 400 and drives the movable scroll 400 to move, thereby completing the compression of fluid by the scroll compressor; bearings matched with the front cover bearing cavity 110 and the movable scroll disk bearing cavity 120 are arranged in the front cover bearing cavity 110 and the movable scroll disk bearing cavity 120 respectively, the bearings in the front cover bearing cavity 110 are used for supporting the rotation of the rotating shaft 500, and the bearings in the movable scroll disk bearing cavity 120 are used for supporting the rotation of the movable scroll disk 400 when the rotating shaft 500 drives the movable scroll disk 400 to move; because the diameter of the front cover bearing cavity 110 is smaller than that of the movable scroll bearing cavity 120, the diameter of the bearing in the front cover bearing cavity 110 is also smaller than that of the bearing in the movable scroll bearing cavity 120, the movable scroll 400, the bearing in the front cover bearing cavity 110, the bearing in the movable scroll bearing cavity 120 and the bottom wall of the scroll front cover 100 are limited mutually, the mutual separation of the components is avoided, the working stability of the scroll compressor is ensured, and the working efficiency of the scroll compressor is improved.

In an optional technical solution of this embodiment, the orbiting scroll 400 is provided with an orbiting shaft connecting cavity 410;

the rotation shaft connection chamber 410 is provided at an end of the orbiting scroll 400 facing away from the fixed scroll, and the rotation shaft 500 is rotatably connected to the rotation shaft connection chamber 410.

Specifically, as shown in fig. 3, the rotation shaft 500 passes through the through hole 130 and is connected to the rotation shaft connection cavity 410 to be fixedly connected to the orbiting scroll 400, and the rotation shaft 500 is connected to the rotation shaft connection cavity 410 to be prevented from being directly fixedly connected to the orbiting scroll 400, thereby ensuring the performance of the orbiting scroll 400 itself.

In an optional technical solution of this embodiment, the scroll compressor further includes a connecting assembly 300, where the connecting assembly 300 includes a front cover bearing 320 and an orbiting scroll bearing 330;

the front cover bearing 320 and the orbiting scroll bearing 330 are both fixedly sleeved at one end of the rotating shaft 500 and are both mounted on the scroll front cover 100.

Specifically, as shown in fig. 2 and fig. 3, the front cover bearing 320 is disposed in the front cover bearing cavity 110, the orbiting scroll bearing 330 is disposed in the orbiting scroll bearing cavity 120, and both the front cover bearing 320 and the orbiting scroll bearing 330 are fixedly sleeved at one end of the rotating shaft 500 close to the rotating shaft connection cavity 410; the outer diameter of the front cover bearing 320 is matched with the inner diameter of the front cover bearing cavity 110, and the outer diameter of the orbiting scroll bearing 330 is matched with the inner diameter of the orbiting scroll bearing cavity 120; the front cover bearing 320 is used for supporting the rotation of the rotation shaft 500, reducing the friction coefficient of the rotation shaft 500 during rotation and ensuring the rotation precision of the rotation shaft 500 during rotation; the orbiting scroll bearing 330 is used to support the orbiting scroll 400 to rotate when the orbiting scroll 400 is driven by the rotating shaft 500 to move, to reduce the friction coefficient of the orbiting scroll 400 when rotating, to ensure the rotation precision of the orbiting scroll 400 when rotating, to ensure the sealing effect between the orbiting scroll 400 and the fixed scroll, and to improve the stability and reliability of the orbiting scroll 400 when rotating.

The fixed connection of the scroll front cover 100 and the housing 200 is not only applicable to a scroll compressor, but also applicable to other compressors in which a motion mechanism is provided in a housing, such as a reciprocating compressor, a rotary compressor, a centrifugal compressor, and a mixed-flow compressor.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (7)

1. A front cover structure applied to a scroll compressor is characterized by comprising: a scroll front cover (100) and a housing (200);

an opening is formed in one end of the shell (200), and the scroll front cover (100) is installed in the shell (200) and fixedly connected with the shell (200);

the outer wall of the scroll front cover (100) is abutted against the inner wall of the shell (200);

the scroll front cover (100) is an open shell, and the open end of the scroll front cover (100) is arranged close to one end, provided with the opening, of the shell (200);

the end surface of the opening end of the scroll front cover (100) is flush with the end surface of the shell (200) provided with the opening.

2. The front cover structure according to claim 1, wherein said scroll front cover (100) includes a front cover bearing cavity (110) and an orbiting scroll bearing cavity (120);

the movable scroll bearing cavity (120) is arranged at the opening end of the scroll front cover (100), and the front cover bearing cavity (110) is arranged between the bottom wall of the scroll front cover (100) and the movable scroll bearing cavity (120).

3. The front cover structure as claimed in claim 2, wherein the front cover bearing cavity (110) communicates with the orbiting scroll bearing cavity (120), and a diameter of the front cover bearing cavity (110) is smaller than a diameter of the orbiting scroll bearing cavity (120).

4. The front cover structure according to claim 2, wherein a bottom wall of the scroll front cover (100) is provided with a through hole (130), the through hole (130) communicating with the front cover bearing chamber (110).

5. A scroll compressor comprising a rotation shaft (500), an orbiting scroll (400), a fixed scroll and a front cover structure according to any one of claims 1 to 4; the movable scroll (400) and the fixed scroll are in relative sealing connection, one end of the movable scroll (400) is arranged at the opening end of a scroll front cover (100) in the front cover structure and is connected with the rotating shaft (500).

6. The scroll compressor of claim 5, wherein the orbiting scroll (400) is provided with a rotating shaft connection chamber (410):

the rotating shaft connecting cavity (410) is arranged at one end, deviating from the fixed scroll, of the movable scroll (400), and the rotating shaft (500) is arranged in the rotating shaft connecting cavity (410).

7. The scroll compressor of claim 6, further comprising a connection assembly (300), the connection assembly (300) including a front cover bearing (320) and an orbiting scroll bearing (330);

the front cover bearing (320) and the orbiting scroll bearing (330) are both fixedly sleeved at one end of the rotating shaft (500) and are both mounted on the scroll front cover (100).

Images