CN112324663A

CN112324663A - Pump body assembly, rolling rotor type compressor and air conditioner

Info

Publication number: CN112324663A
Application number: CN202011407499.XA
Authority: CN
Inventors: 范晓晨; 邓罡; 廖李平; 张旺; 詹丽强
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-02-05
Anticipated expiration: 2040-12-03
Also published as: CN112324663B

Abstract

The invention relates to the technical field of rolling rotor compressors, in particular to a pump body assembly, a rolling rotor compressor and an air conditioner. When the roller eccentrically rolls in the hollow cavity, a part of refrigerant is compressed in the suction cavity until the compressed refrigerant enters the compression cavity, and finally returns to the shell through an exhaust oblique notch of the compression cavity, and the two compression structures synchronously reciprocate in the moving cavity under the action of the connecting structure, so that part of refrigerant is sucked in one piston cavity, meanwhile, the refrigerant is compressed in the other piston cavity through the compression structure and finally discharged into the shell through the control structure, and the whole compression process of the refrigerant is finished; the displacement of the pump body assembly in the present embodiment can be effectively increased by the above two refrigerant compression processes.

Description

Pump body assembly, rolling rotor type compressor and air conditioner

Technical Field

The invention relates to the technical field of rolling rotor compressors, in particular to a pump body assembly, a rolling rotor compressor and an air conditioner.

Background

The rolling rotor type compressor is popularized in the refrigeration and heating industry due to the characteristics of simple structure, low cost, high reliability and the like, and is particularly widely applied to the fields of air conditioners, water heaters, refrigeration equipment and the like.

Because rolling rotor compressor application occasions are more and more, many application occasions require that its outward appearance is little, the discharge capacity is big at present, and rotor compressor receives self pump body structure volume restriction, and the discharge capacity is always directly proportional with the complete machine size, and this just leads to the compressor outward appearance that the discharge capacity is big, can't use more occasions, to this, how to design the compressor of bigger discharge capacity under limited compressor outward appearance becomes one of the problem that needs to solve in the trade at present urgently.

Disclosure of Invention

An object of the application is to provide a pump body subassembly, rolling rotor formula compressor and air conditioner to solve the problem that pump body subassembly discharge capacity is little among the prior art.

Technical scheme (I)

To achieve the above object, a first aspect of the present invention provides a pump body assembly including:

a cylinder having a hollow cavity;

the roller is sleeved on the eccentric part of the crankshaft and is eccentrically and rotatably arranged in the hollow cavity;

a mobile cavity comprising: the piston comprises two sliding sheet grooves oppositely formed in the cylinder and piston cavities respectively communicated with the tail ends of the two sliding sheet grooves;

the two compression structures are movably mounted in the corresponding moving cavities respectively, and the two compression structures are connected with the outer wall surface of the roller through connecting structures.

Optionally, a control structure for controlling the refrigerant to enter and exit is installed on the side wall surface of the piston cavity.

Optionally, the compression structure includes: the sliding piece is movably arranged in the sliding piece groove, and the piston is movably arranged in the piston cavity.

Optionally, the two sliding sheet grooves are arranged between the air suction port and the exhaust oblique notch of the air cylinder, a through groove is formed in one of the sliding sheets in the two sliding sheet grooves, and the hollow cavity is divided into an air suction cavity and a compression cavity.

Optionally, the suction port and the exhaust inclined cut of the cylinder are both set to be two, and the sliding sheets arranged in the sliding sheet grooves divide the hollow cavity into two suction cavities and two compression cavities.

Optionally, the connection structure includes: the first connecting ring and the second connecting ring are oppositely sleeved on the step surface of the air cylinder and are connected with the two compression structures.

Optionally, the control structure includes: the valve plates are oppositely arranged on the two wall surfaces of the baffle.

Optionally, the piston is connected to the connecting structure by a fixing member.

Optionally, the sliding piece is fixedly connected with the piston.

To achieve the above object, a second aspect of the present invention provides a rolling rotor type compressor comprising: a pump body assembly according to any preceding claim.

To achieve the above object, a third aspect of the present invention provides an air conditioner comprising: a rolling rotor compressor as hereinbefore described.

(II) advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

the invention provides a pump body assembly, a rolling rotor type compressor and an air conditioner, comprising: a cylinder having a hollow cavity; the roller is sleeved on the eccentric part of the crankshaft and is eccentrically and rotatably arranged in the hollow cavity; a mobile cavity comprising: the air cylinder comprises two sliding sheet grooves oppositely formed in the air cylinder and piston cavities respectively communicated with the tail ends of the two sliding sheet grooves, wherein a control structure for controlling the inlet and the outlet of a refrigerant is arranged on the side wall surface of each piston cavity; the two compression structures are respectively and movably arranged in the corresponding moving cavities, and the two compression structures are connected with the outer wall surface of the roller through connecting structures;

at the moment, the hollow cavity is divided into at least one suction cavity and one compression cavity by the two compression structures and the roller, when the roller eccentrically rolls in the hollow cavity, a part of refrigerant is compressed in the suction cavity until the compressed refrigerant enters the compression cavity, and finally returns to the shell through an inclined exhaust notch of the compression cavity, and the two compression structures synchronously reciprocate in the moving cavity under the action of the connecting structure, so that part of refrigerant is sucked in one piston cavity in one reciprocating motion, meanwhile, the refrigerant is compressed in the other piston cavity through the compression structure and finally discharged into the shell through the control structure, and the whole compression process of the refrigerant is completed; the displacement of the pump body assembly in the present embodiment can be effectively increased by the above two refrigerant compression processes.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for a person skilled in the art that other drawings can be obtained according to the drawings without inventive exercise, wherein:

FIG. 1 is a schematic view of a pump block assembly according to one embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at position A;

FIG. 3 is a schematic view of two compression structures in cooperation with a cylinder according to the present invention;

FIG. 4 is a schematic view of the construction of the cylinder of the present invention;

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a schematic view of a slider structure with through slots in the present invention;

FIG. 7 is a schematic view of the piston of the present invention;

FIG. 8 is a schematic structural view of a control structure in the present invention;

FIG. 9 is a schematic diagram of a slide and piston combination according to one embodiment of the present invention;

FIG. 10 is a schematic structural view of a pump body assembly according to another embodiment of the present invention;

FIG. 11 is a schematic view of the cylinder of FIG. 10;

fig. 12 is a schematic view of the structure of the rolling rotor type compressor of the present invention.

In the figure: 1. a cylinder; 2. a roller; 3. a crankshaft; 4. an eccentric portion; 5. a moving chamber; 6. a slide groove; 7. a piston cavity; 8. a compression structure; 9. a connecting structure; 10. a control structure; 11. sliding blades; 12. a piston; 13. an air suction port; 14. an exhaust oblique notch; 15. a through groove; 16. an air suction cavity; 17. a compression chamber; 18. a first connecting ring; 19. a second connection ring; 20. a step surface; 21. a baffle plate; 22. a valve plate; 23. a fixing member; 24. an air intake duct; 25. and (4) exhausting the gas.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The invention is described in further detail below with reference to the following figures and detailed description:

as shown in fig. 1 to 11, a first aspect of the present application discloses a pump body assembly including:

a cylinder 1 having a hollow cavity;

the roller 2 is sleeved on the eccentric part 4 of the crankshaft 3 and is eccentrically and rotatably arranged in the hollow cavity;

a mobile cavity 5 comprising: the piston comprises sliding sheet grooves 6 oppositely arranged on the cylinder 1 and piston cavities 7 communicated with the tail ends of the two sliding sheet grooves 6;

the number of the compression structures 8 is two, the two compression structures 8 are respectively and movably mounted in the corresponding moving cavities 5, and the two compression structures 8 are connected with the outer wall surface of the roller 2 through the connecting structures 9.

When the compressor works, the hollow cavity is divided into at least one suction cavity and one compression cavity by the two compression structures and the roller, when the roller eccentrically rolls in the hollow cavity, a part of refrigerant is compressed in the suction cavity until the compressed refrigerant enters the compression cavity, and finally returns into the shell through an inclined exhaust notch of the compression cavity, and the two compression structures synchronously reciprocate in the moving cavity under the action of the connecting structure, so that part of refrigerant is sucked in one piston cavity in one reciprocating motion, meanwhile, the refrigerant is compressed in the other piston cavity through the compression structure and finally discharged into the shell through the control structure, and the whole compression process of the refrigerant is finished; the displacement of the pump body assembly in the present embodiment can be effectively increased by the above two refrigerant compression processes.

According to an embodiment of the present invention, as shown in fig. 3 and 4, the compression structure 8 includes: the sliding vane 11 is movably arranged in the sliding vane groove 6, and the piston 12 is movably arranged in the piston cavity 7;

when the compressor works, under the action of the connecting structure 9, synchronous control over the two sliding sheets 11 and the piston 12 is realized, when the roller eccentrically rolls in the hollow cavity, the cylinder drives the connecting structure 9 to synchronously eccentrically rotate, so that two pistons are driven to reciprocate in the piston cavity, as shown in fig. 3, the piston arranged at the lower part is set as a first piston, the corresponding piston cavity is a first piston cavity, the piston arranged at the upper part is set as a second piston, and the corresponding piston cavity is a second piston cavity, as shown in the figure, when the roller clockwise rotates in the hollow cavity, the connecting structure 9 drives the first piston to perform refrigerant compression operation in the first piston cavity, and on the other side, the second piston pulls the second piston to perform refrigerant suction operation in the second piston cavity under the action of the connecting structure 9, so that no matter how the roller rotates can be ensured through the design, the displacement of the pump body assembly in the embodiment can be effectively increased.

According to an embodiment of the present invention, as shown in fig. 1, two sliding vane grooves 6 are both disposed between an air suction port 13 and an exhaust oblique notch 14 of an air cylinder 1, one of the sliding vanes 11 installed in the two sliding vane grooves 6 is provided with a through slot 15, i.e. one of them is set as a communicating sliding vane, the other is set as a sealing sliding vane, and a hollow cavity is divided into an air suction cavity 16 and a compression cavity 17; when the roller eccentrically rolls in the hollow cavity, a part of refrigerant enters the suction cavity through the suction port 13 to be compressed, then the compressed refrigerant enters the compression cavity through the through groove 15, and finally returns to the shell through the exhaust inclined notch of the compression cavity.

According to another embodiment of the present invention, as shown in fig. 10, the suction port 13 and the exhaust diagonal port 14 of the cylinder 1 are both provided as two, and the sliding vane 11 installed in the two sliding vane grooves 6 divides the hollow cavity into two suction chambers 16 and two compression chambers 17, wherein both sliding vanes are provided as sealing sliding vanes, as shown in fig. 11, the hollow cavity is divided into two chambers by two sealing sliding vanes, and since one suction port 13 and one exhaust diagonal port are provided in each chamber, that is, the chamber can be used as a suction chamber and a compression chamber, and thus, the chamber is divided into two suction chambers 16 and two compression chambers 17, thereby reducing the stroke of the cylinder for compressing the gas and improving the working efficiency of the cylinder.

In one embodiment, as shown in fig. 2, the sliding piece 11 and the piston 12 are connected with the connecting structure 9 through a fixing piece 23; of course, in order to reduce the number of assembly steps, another embodiment, as shown in fig. 9, is provided in which the sliding piece 11 is fixedly connected to the piston 12.

According to one embodiment of the invention, the connection structure 9 comprises: the first connecting ring 18 and the second connecting ring 19 are oppositely sleeved on a step surface 20 of the cylinder 1 and connected with the two compression structures 8; specifically, be connected with two gleitbretters, it is preferred, the structure of first go-between and second go-between is the same, and all be interference fit with two gleitbretters, in this embodiment, connection structure 9's design can guarantee on the one hand that two gleitbretters all can closely laminate with the outer wall of roller to avoid complicated designs such as spring among the prior art, reduction in production cost, on the other hand can realize the synchro control to two gleitbretters.

According to an embodiment of the present invention, in order to facilitate the suction or discharge of the refrigerant into or from the piston chamber, a control structure 10 for controlling the entrance and exit of the refrigerant is installed on a sidewall surface of the piston chamber 7, and preferably, the control structure 10 includes: the baffle 21 and the two valve plates 22, the two valve plates 22 are oppositely arranged on two wall surfaces of the baffle 21, for convenience of understanding, the baffle arranged on the inner wall surface of the cylinder is called a first baffle, and the baffle arranged on the outer wall surface of the cylinder is called a second baffle; as shown in fig. 3, when the roller rotates clockwise in the hollow cavity, the first connection ring and the second connection ring drive the first piston to perform the operation of compressing the refrigerant in the first piston cavity, at this time, the second baffle is pushed open under the action of pressure, so as to discharge the compressed gas into the shell, on the other hand, the second piston pulls the second piston to move in the second piston cavity under the action of the connection structure 9, at this time, the first baffle is pulled open under the action of pulling force, so as to suck the refrigerant into the second piston cavity, and wait for driving the second piston to perform the compression movement under the action of the first connection ring and the second connection ring.

As shown in fig. 12, a second aspect of the present application discloses a rolling rotor type compressor comprising: a pump body assembly according to any preceding claim.

When the compressor works, low-temperature and low-pressure refrigerant can be sucked through the air suction pipe arranged at the bottom, then enters each compression cavity to be compressed into high-temperature and high-pressure refrigerant, and finally is discharged into a refrigeration system for cyclic utilization through the exhaust pipe arranged at the top of the compressor; the refrigerant can also firstly enter the shell of the compressor through an exhaust pipe arranged at the top of the compressor, then enter each compression cavity for compression, and finally the compressed high-temperature and high-pressure refrigerant is discharged into a refrigeration system through an air suction pipe arranged at the bottom of the shell for cyclic utilization.

A third aspect of the present application discloses an air conditioner comprising: such as the aforementioned rolling rotor type compressor.

The scheme of the invention is not only suitable for the embodiment, but also suitable for the rotor type compressors with low (or high) back pressure and double cylinders, three cylinders and more in different application occasions.

The embodiments in the present description are all described in a progressive manner, and some of the embodiments are mainly described as different from other embodiments, and the same and similar parts among the embodiments can be referred to each other.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying importance; the words "bottom" and "top", "inner" and "outer" refer to directions toward and away from, respectively, a particular component geometry.

In the description of the present invention, it should 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; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pump body assembly, comprising:

a cylinder (1) having a hollow cavity;

the roller (2) is sleeved on the eccentric part (4) of the crankshaft (3) and is eccentrically and rotatably arranged in the hollow cavity;

a mobile cavity (5) comprising: the piston comprises two sliding sheet grooves (6) oppositely arranged on the cylinder (1) and piston cavities (7) respectively communicated with the tail ends of the two sliding sheet grooves (6);

the two compression structures (8) are respectively and movably mounted in the corresponding moving cavity (5), and the two compression structures (8) are connected with the outer wall surface of the roller (2) through a connecting structure (9).

2. The pump block assembly according to claim 1, wherein the side wall surface of the piston chamber (7) is provided with a control structure (10) for controlling the inlet and outlet of the coolant.

3. The pump body assembly according to claim 1, characterized in that said compression structure (8) comprises: gleitbretter (11) and with piston (12) that gleitbretter (11) tail end is connected, gleitbretter (11) movable mounting in gleitbretter groove (6), piston (12) movable mounting in piston chamber (7).

4. The pump body assembly according to claim 3, characterized in that both said vane grooves (6) are arranged between the suction port (13) and the oblique exhaust port (14) of the cylinder (1), a through slot (15) is opened on one of the vanes (11) installed in both said vane grooves (6), and said hollow cavity is divided into a suction chamber (16) and a compression chamber (17).

5. The pump body assembly according to claim 1, characterized in that the suction port (13) and the exhaust chamfer (14) of the cylinder (1) are provided in two, and the hollow cavity is divided into two suction chambers (16) and two compression chambers (17) by the sliding vanes (11) installed in the two sliding vane grooves (6).

6. The pump body assembly according to claim 1, characterized in that said connection structure (9) comprises: the compression mechanism comprises a first connecting ring (18) and a second connecting ring (19), wherein the first connecting ring (18) and the second connecting ring (19) are oppositely sleeved on a step surface (20) of the cylinder (1) and are connected with the two compression structures (8).

7. The pump body assembly according to claim 2, characterized in that said control structure (10) comprises: the valve plate comprises a baffle (21) and two valve plates (22), wherein the two valve plates (22) are oppositely arranged on two wall surfaces of the baffle (21).

8. Pump body assembly according to claim 3, characterized in that the piston (12) is connected to the connecting structure (9) by means of a fixing element (23).

9. A rolling rotor compressor, comprising: the pump body assembly of any one of claims 1-8.

10. An air conditioner, comprising: a rolling rotor compressor as claimed in claim 9.