CN215566605U

CN215566605U - Pump body assembly, compressor and air conditioner with same

Info

Publication number: CN215566605U
Application number: CN202121207111.1U
Authority: CN
Inventors: 焦卫国
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2022-01-18
Anticipated expiration: 2031-06-01

Abstract

The application provides a pump body subassembly, compressor and have its air conditioner includes: the movable scroll disk is provided with a limiting piece; the mounting part is provided with a first limiting surface and a second limiting surface; in the axial direction of the movable scroll disk, a first limiting surface and a second limiting surface are oppositely arranged; the limiting piece is limited between the first limiting surface and the second limiting surface; the limiting piece can move in the radial direction of the movable scroll disk. According to the pump body assembly, the compressor and the air conditioner with the compressor, the stop scroll can be prevented from overturning.

Description

Pump body assembly, compressor and air conditioner with same

Technical Field

The application belongs to the technical field of air conditioners, and particularly relates to a pump body assembly, a compressor and an air conditioner with the pump body assembly and the compressor.

Background

At present, the scroll compressor is acted by gas force of the compressor during operation to move a scroll, so that the phenomenon of overturning is generated. The overturn of the movable scroll can cause the leakage of gas in a compression cavity, and if the gas is serious, the abrasion of the fixed scroll can be caused.

Therefore, how to provide a pump body assembly capable of preventing the stop scroll from overturning, a compressor and an air conditioner with the same become problems to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of the present invention is to provide a pump body assembly, a compressor and an air conditioner having the same, which can prevent a scroll from overturning.

In order to solve the above problem, the present application provides a pump body assembly including:

the movable scroll disk is provided with a limiting piece;

the mounting piece is provided with a first limiting surface and a second limiting surface; in the axial direction of the movable scroll disk, a first limiting surface and a second limiting surface are oppositely arranged; the limiting piece is limited between the first limiting surface and the second limiting surface; the limiting piece can move in the radial direction of the movable scroll disk.

Preferably, the mounting member comprises a bracket and a connector; a limiting groove is formed between the bracket and the connecting piece, and the limiting groove is provided with a first inner wall to form a first limiting surface; the limiting groove is provided with a second inner wall to form a second limiting surface.

Preferably, the pump body assembly further comprises a fixed scroll, and the fixed scroll, the connecting piece and the bracket are sequentially connected in the axial direction of the fixed scroll.

Preferably, the holder has an annular end face, and the connector comprises a connecting ring; the first end surface of the connecting ring is connected with the static vortex disc; the second end surface of the connecting ring is connected with the annular end surface.

Preferably, the mounting member is provided with a mounting cavity, the first limiting surface and the second limiting surface are both arranged on the inner peripheral side of the mounting cavity, and the movable scroll disk is mounted in the mounting cavity.

Preferably, the inner circumference side of the connecting ring is provided with a first cavity, and the bracket is provided with a second cavity; the first cavity and the second cavity correspond to each other in the axial direction of the movable scroll disk, and the first cavity is communicated with the second cavity to form an installation cavity.

Preferably, the inner circumferential side of the connection ring is provided with a groove; the notch of the groove comprises a first part and a second part, the first part is positioned on the second end face, the second part is positioned on the inner peripheral wall of the connecting ring, and the annular end face is attached to the second end face so as to form a limiting groove with an opening facing the inner peripheral side of the connecting ring in a matching mode with the groove.

Preferably, the groove has a first side wall facing the annular end surface, and the first side wall forms a first inner wall of the limit groove; the part of the annular end surface, which is positioned in the groove, forms a second inner wall of the limiting groove.

Preferably, in the axial direction of the movable scroll, the distance h between the first limit surface and the second limit surface is longer than the distance h between the first limit surface and the second limit surface; the height of the limiting part is h; wherein h is h.

Preferably, the fixed scroll is provided with a first fixing hole, the connecting ring is provided with a second fixing hole, and the annular end surface is provided with a third fixing hole; in the axial direction of the fixed scroll disk, the positions of the first fixing hole, the second fixing hole and the third fixing hole correspond to each other; the fastener penetrates through the first fixing hole, the second fixing hole and the third fixing hole in sequence to connect the fixed scroll, the connecting piece and the support in sequence.

According to still another aspect of the present application, there is provided a compressor, including a pump body assembly, the pump body assembly being the above pump body assembly.

According to still another aspect of the present application, there is provided an air conditioner including a compressor, the compressor being the above-mentioned compressor.

The application provides a pump body subassembly, compressor and have its air conditioner, the distance between first spacing face and the spacing face of second equals with the height of locating part, can effectually carry out the axial spacing to the locating part, can prevent that the locking vortex dish from toppling.

Drawings

FIG. 1 is a cross-sectional view of a pump body assembly according to an embodiment of the present application;

FIG. 2 is a schematic view of an installation structure of a pump body assembly according to an embodiment of the present application;

fig. 3 is a schematic structural view of a fixed scroll according to an embodiment of the present application;

FIG. 4 is a schematic structural view of an orbiting scroll according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a connector according to an embodiment of the present application;

FIG. 6 is a schematic structural view of a stent according to an embodiment of the present application;

FIG. 7 is a schematic structural view of a pump body assembly according to an embodiment of the present application;

FIG. 8 is a cross-sectional view of a pump body assembly according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a Oldham ring according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a Oldham ring according to an embodiment of the present disclosure;

fig. 11 is a schematic structural view of an orbiting scroll according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a stent according to an embodiment of the present application.

The reference numerals are represented as:

1. a static scroll pan; 2. a connecting member; 3. a support; 4. a movable scroll pan; 5. a cross slip ring; 51. a limiting groove; 52. a limiting member; 61. a first fixing hole; 62. a second fixing hole; 63. a third fixing hole; 64. a fastener; 7. and (4) a groove.

Detailed Description

Referring collectively to fig. 1-2, a pump body assembly comprising: the movable scroll disk 4 and the mounting piece, wherein a limiting piece 52 is arranged on the movable scroll disk 4; the mounting part is provided with a first limiting surface and a second limiting surface; in the axial direction of the movable scroll disk 4, a first limit surface and a second limit surface are oppositely arranged; the limiting member 52 is limited between the first limiting surface and the second limiting surface; the limiting member 52 is movable in the radial direction of the movable scroll 4, the limiting member 52 is limited between a first limiting surface and a second limiting surface, the distance between the first limiting surface and the second limiting surface is equal to the height of the limiting member 52, the first limiting member 52 and the second limiting member 52 limit the displacement of the limiting member 52 in the axial direction of the movable scroll 4, and further limit the displacement of the movable scroll 4 in the axial direction, so that the movable scroll 4 can be effectively prevented from overturning, and the limiting member 52 can translate between the first limiting surface and the second limiting surface, without affecting the normal operation of the movable scroll 4.

In the prior art, some overturn-preventing devices of scroll compressors are designed based on the principle that unequal-width surfaces are arranged at the edge positions of tooth tops of static scrolls, namely the positions where the tooth tops of the static scrolls are matched with the edges of tooth root surfaces of movable scrolls, and the distances from inside to outside are different by utilizing the matching end surfaces, so that the pressure distribution action area is increased, and the overturn-preventing force and moment are increased. The method adopted by the patent has poor anti-overturning capability, the size of the vortex disk is limited, and the vortex disk cannot be provided with too large unequal-width surfaces, so that the actual application effect is not ideal.

Compared with the prior art, the structure of the scroll disk 4 is changed, so that the overturning of the scroll compressor can be prevented, and the operation of the scroll compressor is more stable. Meanwhile, the overturning of the scrolls is prevented, so that the mutual stress of the moving and static scrolls 1 in the process of operation is reduced, and the abrasion between the moving and static scrolls 1 is further reduced. And the friction between the movable and static disks is reduced, so that the friction power consumption of the scroll compressor is reduced. In addition, the problem that the axial clearance of the movable scroll disk 1 is increased due to the overturning of the movable scroll disk 4 is solved, and the leakage of the scroll compressor is reduced.

4-5, the present application further discloses embodiments in which the mount comprises a bracket 3 and a connector 2; a limiting groove 51 is formed between the bracket 3 and the connecting piece 2, and the limiting groove 51 is provided with a first inner wall to form a first limiting surface; the limiting groove 51 is provided with a second inner wall to form a second limiting surface; the limiting member 52 is disposed in the limiting groove 51, and the limiting member 52 is axially limited by a first limiting surface formed by the first inner wall and a second limiting surface formed by the second inner wall, so as to prevent the stop scroll 4 from overturning. This application pump body subassembly makes scroll compressor's operation more steady, has reduced the wearing and tearing between the sound whirlpool dish 1, has reduced scroll compressor's friction consumption, has reduced scroll compressor's the revealing. The overall performance of the scroll compressor is improved.

In the present application, embodiments are further disclosed, in which the limiting member 52 includes a protrusion disposed on the outer circumferential wall of the orbiting scroll 4, that is, three protrusions for preventing overturning are uniformly disposed on the orbiting scroll 4, and a connecting member 2 for connecting the bracket 3 and the fixed scroll 1 is disposed between the bracket 3 and the orbiting scroll 4. Three evenly distributed grooves 7 for preventing overturning are arranged on the connecting piece 2, and the bulges and the grooves 7 are mutually matched to realize the overturning prevention function of the vortex disc. The protrusions can be arranged in different shapes, such as rectangle, semicircle, diamond and the like. The protrusion and the limiting groove 51 form a concave-convex matching structure, and the movable scroll disk 4 is axially limited through the concave-convex matching structure, so that the movable scroll disk 4 is prevented from overturning.

The present application also discloses embodiments in which the size of the limiting groove 51 is larger than the size of the limiting member 52 in the circumferential direction of the orbiting scroll 4.

The application also discloses some embodiments, in the radial direction of the movable scroll disk 4, the size of the limiting groove 51 is larger than that of the limiting piece 52, so that the limiting piece 52 can move in a translation manner in the limiting groove 51 in the working process of the movable scroll disk 4, and further the normal work of the movable scroll disk 4 is not influenced. The projection is freely movable in the stopper groove 51 without interference. The height of the protrusion is equal to that of the limiting groove 51, the remaining size of the limiting groove 51 and the protrusion except the height is far larger than that of the anti-protrusion, and when the movable scroll plate revolves in a translation manner, the anti-overturning protrusion freely moves in the anti-overturning groove 7 without interference.

The application also discloses some embodiments, the number of the limiting grooves 51 is set to be at least two, and the limiting grooves 51 and the limiting pieces 52 are arranged in a one-to-one correspondence manner. The number of the limiting grooves 51 is three, the number of the limiting pieces 52 is three, and the limiting grooves 51 correspond to the limiting pieces 52 one by one. The number of the limiting grooves 51 and the limiting pieces 52 can be 2, 4 or 5.

The application also discloses some embodiments, and pump body subassembly still includes fixed scroll 1, and fixed scroll 1 and installed part fixed connection.

The application also discloses some embodiments, the pump body assembly further comprises a fixed scroll 1, and the fixed scroll 1, the connecting piece 2 and the bracket 3 are sequentially connected in the axial direction of the fixed scroll 1.

The application also discloses embodiments, wherein the bracket 3 has an annular end surface, and the connecting piece 2 comprises a connecting ring; the first end surface of the connecting ring is connected with the static scroll 1; the second end surface of the connecting ring is connected with the annular end surface.

The application also discloses some embodiments, be provided with the installation cavity on the installed part, first spacing face and the spacing face of second all set up in the week side of installation cavity, move whirlpool dish 4 and install in the installation cavity. The mounting cavity is located on the inner peripheral side of the fixed scroll 1. The diameter of the end surface of the movable scroll disk 4 is smaller than the inner diameter of the mounting cavity.

The application also discloses embodiments, the fixed scroll 1, the connecting piece 2 and the bracket 3 are sequentially connected in the axial direction of the fixed scroll 1.

The application also discloses some embodiments, the inner periphery side of the connecting ring is provided with a first cavity, and the bracket 3 is provided with a second cavity; the first chamber and the second chamber correspond to each other in position in the axial direction of the orbiting scroll 4, and the first chamber and the second chamber are communicated to form a mounting cavity.

The core of the application is the mutual matching of the movable scroll disk, the bracket 3 and the connecting piece 2. Wherein, the periphery wall of the movable scroll disk is provided with three protrusions which are uniformly arranged around the periphery of the movable scroll disk 4 and are used for preventing overturning, the inner periphery wall of the connecting ring is provided with three grooves 7 which are uniformly arranged around the periphery of the movable scroll disk 4 and are used for preventing overturning, and the grooves 7 are matched with the annular end surface of the bracket 3 to form a limiting groove 51. Wherein the assembled protrusions and recesses 7 are arranged in a one-to-one correspondence.

The application also discloses some embodiments, the inner circumference of the connecting ring is provided with a groove 7; the notches of the grooves 7 comprise a first portion located on the second end surface and a second portion located on the inner circumferential wall of the connecting ring, the annular end surface being fitted with the second end surface to form, in cooperation with the grooves 7, a stopper groove 51 opening toward the inner circumferential side of the connecting ring. The bracket 3 has two functions, on one hand, the bracket 3 and the connecting piece 2 are mutually matched to form three limiting grooves 51 areas, and the overturn-preventing projection of the movable scroll disk 4 is inserted into the groove 7. On the other hand, the bracket 3 is used as a support of the whole pump body, and the position of the pump body is ensured by welding with the shell in the whole compressor. The function of the connecting member 2 is to cooperate with the orbiting scroll 4 to prevent it from overturning.

3-7, the present application also discloses embodiments in which the groove 7 has a first sidewall facing the annular end surface, the first sidewall forming a first inner wall forming a retaining groove; the part of the annular end surface, which is positioned in the groove, forms a second inner wall of the limiting groove.

The plane (the second end surface) with the notch (the first part of the notch of the groove 7) of the connecting ring is contacted and attached with the plane (the annular end surface) of the bracket 3, and the first end surface of the connecting ring is contacted and attached with the fixed scroll. The upper plane of the boss of the movable scroll disk is contacted with the upper plane of the groove 7, namely the first side wall, and the lower plane of the boss is contacted and attached with the part of the annular end surface, which is positioned in the groove 7. Therefore, the connecting piece 2 and the movable scroll disk can be restrained, and the revolution translation of the movable scroll disk is ensured. Because the upper plane of the groove 7 and the part of the annular end surface, which is positioned in the groove 7, are matched to form the limiting groove 51, the axial displacement of the protrusion is limited, and when the movable scroll has the tendency of overturning, the protrusion is matched with the limiting prevention groove 51 to prevent the movable scroll from overturning. Thereby reducing leakage and wear of the scroll compressor.

The application also discloses embodiments, in the axial direction of the movable scroll disk 4, the distance h1 between the first limit surface and the second limit surface; the height of the stop 52 is h 2; wherein, h1 is h2+0.02mm-h2+0.07mm, and in this range, the first spacing face and the second spacing face can effectively limit the limiting member 52, and do not influence the movement of the limiting member 52.

The application also discloses some embodiments, a first fixing hole 61 is arranged on the fixed scroll 1, a second fixing hole 62 is arranged on the connecting ring, and a third fixing hole 63 is arranged on the annular end surface; the positions of the first fixing hole 61, the second fixing hole 62 and the third fixing hole 63 correspond in the axial direction of the fixed scroll 1; the fastening member 64 penetrates the first fixing hole 61, the second fixing hole 62 and the third fixing hole 63 in sequence to connect the fixed scroll 1, the connecting member 2 and the bracket 3 in sequence. The end surface of the orbiting scroll 4 has a diameter smaller than the inner diameter of the mounting cavity, so that none of the fixing holes interferes with the orbiting scroll 4. The first fixing hole 61, the second fixing hole 62, and the third fixing hole 63 are offset from the recess 7 in the circumferential direction of the fixed scroll 1. The fastener 64 comprises a pin.

The device can also mainly comprise four main parts, namely a fixed scroll 1, a movable scroll 4, a connecting piece 2 and a bracket 3, three cylindrical pins and six screws. The fixed scroll 1 is provided with three first fixing holes 61, namely pin holes, which are sequentially and uniformly arranged on the circumferential direction of the fixed scroll 1, the connecting piece 2 is provided with second fixing holes 62, namely pin holes, which are sequentially and uniformly arranged on the circumferential direction of the connecting ring, and the bracket 3 is provided with third fixing holes 63, namely pin holes, which are sequentially and uniformly arranged on the circumferential direction of the annular end surface. The first fixing hole 61 and the second fixing hole 62 penetrate in the axial direction of the compressor; the third fixing hole 63 may not penetrate the bracket 3, and a pin may penetrate the first fixing hole 61, the second fixing hole 62 and the third fixing hole 63 in sequence to connect the fixed scroll 1, the connecting member 2 and the bracket 3; the third fixing hole 63 can also penetrate through the bracket 3, and the fixed scroll 1, the connecting piece 2 and the bracket 3 are fastened by screws; x, G, J corresponds to each other during assembly, Y, H, K corresponds to each other during assembly, Z, I, L corresponds to each other during assembly, three pins are used for assembling the fixed scroll and the support 3 together during assembly, and then six uniformly distributed screws are used for locking the fixed scroll, the support 3 connecting piece 2 and the support 3 together.

The pump body assembly further comprises a cross slip ring, the support 3 is fixed, and the connecting piece 2, the fixed scroll 1 and the support 3 are connected together and are not changed in position; therefore, the bracket 3, the connecting piece 2 and the fixed scroll 1 are static parts. Wherein, two bulges F at the lower end of the cross slip ring 5 are matched with a groove H on the bracket 3, and two bulges E at the upper end of the cross slip ring 5 are matched with a groove G on the movable scroll disk 4. The cross slip ring 5 is matched with the bracket 3, and the cross slip ring 5 reciprocates relative to the bracket 3. The movable scroll disk 4 is matched with the cross slip ring 5 to prevent autorotation, and the movable scroll disk 4 performs revolution translation around the circle center of the base circle of the fixed scroll disk 1. In the application, three limiting members 52 are arranged around the orbiting scroll 4, the three limiting members 52 are placed in a limiting groove 51 formed by matching the connecting member 2 and the bracket 3, and the radial spatial position of the limiting groove 51 is far greater than that of the limiting members 52, so that the limiting members 52 can freely translate in the radial direction in the corresponding limiting grooves 51 when the orbiting scroll 4 revolves in a translational motion. The height h2 of the limiting piece 52 is slightly smaller than the distance h1 between the first limiting surface and the second limiting surface, and h1 is h2+0.02mm-h2+0.07mm, so that when the movable scroll disk 4 translates, the limiting groove 51 limits the axial movement of the limiting piece 52, and further limits the overturning of the movable disk.

According to the embodiment of the application, a compressor is provided, and the compressor comprises a pump body assembly which is the pump body assembly. The compressor is a scroll compressor, a scroll compressor pump body is a core component of the compressor, and in the prior art, the pump body is acted by a pressure field in the process of high-speed operation, so that the movable scroll disk 4 of the scroll compressor can overturn. The overturning of the scroll compressor can change the distance between the tooth root and the tooth top of the corresponding tooth root of the dynamic and static scroll 1 of the scroll compressor, cause the leakage of the compressor and seriously cause the abrasion of the scroll compressor. The pump body assembly can effectively prevent the overturning of the stop scroll 4, and further prevent the overturning of the scroll compressor, so that the operation of the scroll compressor is more stable. Because the application prevents the overturn of the scroll disk, the mutual stress of the movable scroll disk 1 and the fixed scroll disk 1 in the process of operation is reduced, and the abrasion between the movable scroll disk 1 and the fixed scroll disk 1 is further reduced. And this application is through reducing the friction between the quiet dish and then reduce scroll compressor's friction consumption. And the overturning of the movable scroll disk 4 can cause the axial clearance of the movable scroll disk 1 and the fixed scroll disk to be enlarged, so that the overturning of the scroll compressor can be prevented, and the leakage of the scroll compressor is reduced.

According to an embodiment of the application, an air conditioner is provided, which comprises a compressor, wherein the compressor is the compressor.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. A pump body assembly, comprising:

the movable scroll (4), wherein a limit piece (52) is arranged on the movable scroll (4);

the mounting piece is provided with a first limiting surface and a second limiting surface; the first limiting surface and the second limiting surface are oppositely arranged in the axial direction of the movable scroll disk (4); the limiting piece (52) is limited between the first limiting surface and the second limiting surface; the limiting piece (52) can move in the radial direction of the movable scroll disk (4).

2. The pump body assembly according to claim 1, characterized in that said mounting comprises a bracket (3) and a connector (2); a limiting groove (51) is formed between the bracket (3) and the connecting piece (2), the limiting groove (51) is provided with a first inner wall to form a first limiting surface; the limiting groove (51) is provided with a second inner wall to form the second limiting surface.

3. The pump body assembly according to claim 2, further comprising a fixed scroll (1), wherein the fixed scroll (1), the connector (2) and the bracket (3) are connected in order in an axial direction of the fixed scroll (1).

4. The pump body assembly according to claim 3, characterized in that said bracket (3) has an annular end face, said connection member (2) comprising a connection ring; the first end surface of the connecting ring is connected with the fixed scroll (1); the second end surface of the connecting ring is connected with the annular end surface.

5. The pump body assembly according to claim 4, wherein a mounting cavity is provided on the mounting member, the first stopper surface and the second stopper surface are both provided on an inner peripheral side of the mounting cavity, and the orbiting scroll (4) is mounted in the mounting cavity.

6. The pump body assembly according to claim 5, characterized in that the inner peripheral side of the connecting ring is provided with a first chamber and the bracket (3) is provided with a second chamber; the first cavity and the second cavity correspond to each other in position in the axial direction of the movable scroll (4), and the first cavity and the second cavity are communicated to form the mounting cavity.

7. The pump body assembly according to claim 4, characterized in that the inner peripheral side of the connection ring is provided with a groove (7); the notch of recess (7) includes first portion and second part, the first portion is located on the second terminal surface, the second part is located on the internal perisporium of connecting ring, annular end face with the second terminal surface is laminated mutually, in order with recess (7) cooperation forms the opening orientation the connecting ring internal periphery side spacing groove (51).

8. The pump body assembly according to claim 7, characterized in that said recess (7) has a first side wall facing said annular end surface, a first inner wall of said limit groove (51); the part of the annular end surface, which is positioned in the groove (7), forms the limiting groove (51) and is provided with a second inner wall.

9. The pump body assembly according to claim 1, wherein a distance h1 between the first stopper surface and the second stopper surface in an axial direction of the orbiting scroll (4); the height of the limiting piece (52) is h 2; wherein h1 is h2+0.02mm-h2+0.07 mm.

10. The pump body assembly according to claim 1, wherein the fixed scroll (1) is provided with a first fixing hole (61), the connecting ring is provided with a second fixing hole (62), and the annular end surface is provided with a third fixing hole (63); the first fixing hole (61), the second fixing hole (62) and the third fixing hole (63) correspond in position in the axial direction of the fixed scroll (1); a fastening member (64) sequentially penetrates through the first fixing hole (61), the second fixing hole (62) and the third fixing hole (63) to sequentially connect the fixed scroll (1), the connecting member (2) and the bracket (3).

11. A compressor comprising a pump body assembly, characterized in that it is a pump body assembly according to any one of claims 1 to 10.

12. An air conditioner comprising a compressor, wherein said compressor is the compressor of claim 11.