CN210769315U

CN210769315U - Rolling rotor type compressor and heat exchange working equipment

Info

Publication number: CN210769315U
Application number: CN201921842211.4U
Authority: CN
Inventors: 周韬
Original assignee: Guangdong Meizhi Precision Manufacturing Co Ltd
Current assignee: Guangdong Meizhi Precision Manufacturing Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-16
Anticipated expiration: 2029-10-29

Abstract

The application belongs to the technical field of compressors, and particularly relates to a rolling rotor type compressor and heat exchange working equipment. In the rolling rotor type compressor, at least two cylinders are close to the partition plate and are provided with first through holes communicated with the air suction channel, and the first through holes of the two cylinders are communicated with the second through holes of the partition plate, so that the air suction channels of the two adjacent cylinders are communicated. When the air conditioner works, the motor drives the crankshaft to rotate, and the crankshaft drives the rotary piston to move in the air cylinder. The refrigerant in the reservoir is inhaled respectively by the suction hole of each cylinder, and the refrigerant gets into in the cylinder through the suction channel, and the refrigerant that comes from a cylinder suction hole simultaneously can pass through first through-hole and second through-hole and get into in the suction channel of another cylinder, just can promote the inspiratory capacity under the unchangeable condition of the cylinder height of compressor, promotes refrigeration volume or heating capacity to improve the efficiency ratio of compressor, ensure that the cylinder adopts the design of flattening to promote pump body efficiency. The compressor can improve the insufficient air suction amount after the cylinder is flattened.

Description

Rolling rotor type compressor and heat exchange working equipment

Technical Field

The application belongs to the technical field of compressors, and particularly relates to a rolling rotor type compressor and heat exchange working equipment.

Background

Traditional rolling rotor formula multi-cylinder compressor, in order to promote pump body efficiency, the cylinder adopts the flattening design, and because of the restriction of cylinder height, the cylinder aperture of breathing in and reservoir lower part return bend pipe diameter are less. Compared with a compressor with a non-flat cylinder design and the same discharge capacity, the compressor with the flat cylinder design has the advantages that the refrigerating capacity under the same working condition is attenuated, and particularly the high-frequency operation frequency is obvious.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a rolling rotor type compressor, so as to solve the technical problem that the refrigerating capacity is low when the cylinder of the existing rolling rotor type multi-cylinder compressor adopts a flat design.

The embodiment of the application provides a rolling rotor type compressor, which comprises a liquid storage device and a compressor main body, wherein the compressor main body comprises a shell, a motor arranged in the shell, a crankshaft driven by the motor to rotate, a bearing for supporting the crankshaft, a plurality of cylinders distributed along the axial direction of the crankshaft, a rotary piston driven by the crankshaft and positioned in the cylinder, and a partition plate clamped between two adjacent cylinders; the cylinder have the suction channel and with the suction hole of suction channel intercommunication, at least two are adjacent the cylinder be close to in set up on the axial terminal surface of baffle with the first through-hole of suction channel intercommunication, the baffle corresponding to second through-hole has been seted up to first through-hole department, adjacent two the suction hole of cylinder respectively with the reservoir intercommunication, and adjacent two the first through-hole of cylinder and adjacent two between the cylinder the second through-hole intercommunication of baffle makes adjacent two the suction channel intercommunication of cylinder.

Optionally, a ratio of a cylinder diameter to a cylinder height of the cylinder is greater than or equal to 2.5.

Optionally, the hydraulic diameter of the first through hole is adapted to the hydraulic diameter of the second through hole.

Optionally, the first through hole and the second through hole are the same in shape.

Optionally, the first through hole is circular, elliptical or polygonal, and the second through hole is circular, elliptical or polygonal.

Optionally, an angle between a center line of the first through hole and a center line of the second through hole ranges from 0 to 60 °.

Optionally, a centerline of the first through hole coincides with a centerline of the second through hole.

Optionally, the number of cylinders is two.

Optionally, the number of the cylinders is more than three, each cylinder is provided with the air suction channel, an air suction hole communicated with the air suction channel, and the first through hole, the partition plate is arranged between every two adjacent cylinders, each partition plate is provided with the second through hole, and the second through hole is communicated between every two adjacent first through holes.

The embodiment of the application provides heat exchange working equipment which comprises the rolling rotor type compressor.

One or more technical solutions in the rolling rotor compressor and the heat exchange working apparatus provided in the embodiment of the present application have at least one of the following technical effects: in the rolling rotor compressor, at least two cylinders are close to the partition plate and are provided with first through holes communicated with the air suction channel, and the first through holes of the two cylinders are communicated with the second through holes of the partition plate, so that the air suction channels of the two adjacent cylinders are communicated. When the air conditioner works, the motor drives the crankshaft to rotate, and the crankshaft drives the rotary piston to move in the air cylinder. The refrigerant in the reservoir is inhaled respectively by the suction hole of each cylinder, and the refrigerant gets into in the cylinder through the suction channel, and the refrigerant that comes from a cylinder suction hole simultaneously can pass through first through-hole and second through-hole and get into the suction channel of another cylinder in, just so can promote the inspiratory capacity under the unchangeable condition of the cylinder height of compressor, promote refrigeration capacity or heating capacity to improve the efficiency ratio of compressor, ensure that the cylinder adopts the design of flattening in order to promote pump body efficiency. The compressor can improve the shortage of the air suction amount after flattening the cylinder, especially in high-frequency operation. The compressor and the heat exchange working equipment have the advantages of simple structure, easy processing and low cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a sectional view of a rolling rotor type compressor according to an embodiment of the present application.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the embodiments of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations and positional relationships illustrated in the drawings, which are used for convenience in describing the embodiments of the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the embodiments of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present application, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1, an embodiment of the present invention provides a rolling rotor compressor, which includes a liquid reservoir 80 and a compressor main body, wherein the compressor main body includes a housing 10, a motor 20 installed in the housing 10, a crankshaft 30 driven by the motor 20 to rotate, a bearing 40 supporting the crankshaft 30, a plurality of cylinders 50 distributed along an axial direction of the crankshaft 30, a rotary piston 60 driven by the crankshaft 30 and located in each cylinder 50, and a partition plate 70 interposed between two adjacent cylinders 50; the air cylinders 50 are provided with air suction channels 51 and air suction holes 52 communicated with the air suction channels 51, the axial end faces, close to the partition plate 70, of at least two adjacent air cylinders 50 are provided with first through holes 53 communicated with the air suction channels 51, the partition plate 70 is provided with second through holes 71 corresponding to the first through holes 53, the air suction holes 52 of the two adjacent air cylinders 50 are respectively communicated with the liquid storage device 80, and the first through holes 53 of the two adjacent air cylinders 50 are communicated with the second through holes 71 of the partition plate 70 between the two adjacent air cylinders 50, so that the air suction channels 51 of the two adjacent air cylinders 50 are communicated.

Compared with the prior art, in the rolling rotor compressor, the first through hole 53 communicated with the air suction channel 51 is formed in the position, close to the partition plate 70, of at least two air cylinders 50, and the first through holes 53 of the two air cylinders 50 are communicated with the second through hole 71 of the partition plate 70, so that the air suction channels 51 of the two adjacent air cylinders 50 are communicated. In operation, the motor 20 drives the crankshaft 30 to rotate, and the crankshaft 30 drives the rotary piston 60 to move in the cylinder 50. The refrigerant in the liquid reservoir 80 is sucked into the suction holes 52 of each cylinder 50 respectively, the refrigerant enters the cylinders 50 through the suction channels 51, and meanwhile, the refrigerant from the suction hole 52 of one cylinder 50 enters the suction channel 51 of the other cylinder 50 through the first through hole 53 and the second through hole 71, so that the suction volume is increased and the cooling volume or the heating volume is increased under the condition that the height of the cylinder 50 of the compressor is not changed, the energy efficiency ratio of the compressor is improved, and the cylinder 50 is ensured to adopt a flat design to improve the pump efficiency. The compressor can improve the insufficient air suction amount after flattening the cylinder 50, especially in high-frequency operation. The compressor has the advantages of simple structure, easy processing and low cost.

In another embodiment of the present application, the bearing 40 includes a main bearing 41 and a secondary bearing 42, the main bearing 41 and the secondary bearing 42 are arranged at a distance, in the axial direction of the crankshaft, all the cylinders 50 are located between the main bearing 41 and the secondary bearing 42, the main bearing 41 is mounted on the inner wall of the shell 10, and the secondary bearing 42 is arranged on the lower end surface of the lowermost cylinder 50. This can reliably support the crankshaft 30 in the housing 10.

In another embodiment of the present application, the ratio of the cylinder diameter D of the cylinder 50 to the cylinder height H is greater than or equal to 2.5. The cylinder diameter D of the cylinder 50 refers to the inner diameter of the cylinder 50. The cylinder height H of the cylinder 50 refers to a distance of an inner cavity of the cylinder 50 in an axial direction of the cylinder 50. The ratio of the cylinder diameter D of the air cylinder 50 to the cylinder height H is larger than or equal to 2.5, so that the cold energy is improved, the structure is easy to process, and the structure is compact.

In another embodiment of the present application, the hydraulic diameter of the first through hole 53 is adapted to the hydraulic diameter of the second through hole 71, that is, the hydraulic diameter of the first through hole 53 is equal to or close to the hydraulic diameter of the second through hole 71, for example, the ratio of the hydraulic diameter of the first through hole 53 to the hydraulic diameter of the second through hole 71 is in the range of 0.8 to 1.2. The arrangement can reduce resistance loss, and the refrigerant can more quickly enter the air suction channel 51 of the second cylinder 50 from the air suction channel 51 of the first cylinder 50 through the first through hole 53 of the cylinder 50, the second through hole 71 of the partition plate 70 and the first through hole 53 of the second cylinder 50, so that the air suction quantity is improved, the refrigerating capacity or the heating capacity is improved, and the energy efficiency ratio of the compressor is improved.

In another embodiment of the present application, the first through-hole 53 and the second through-hole 71 have the same shape. The first through hole 53 and the second through hole 71 which are identical in shape are adopted, so that the processing is easy, when the first through hole 53 and the second through hole 71 which are identical in shape are aligned, the resistance loss of the refrigerant passing through the first through hole 53 and the second through hole 71 is reduced, and the air suction amount is improved.

In another embodiment of the present application, the first through hole 53 has a circular or elliptical or polygonal shape, and the second through hole 71 has a circular or elliptical or polygonal shape. The first through holes 53 and the second through holes 71 in different shapes can realize the communication of the air suction channels 51 of two adjacent air cylinders 50, and the specific shapes are set as required.

In another embodiment of the present application, the angle between the center line of the first through hole 53 and the center line of the second through hole 71 is in the range of 0 to 60 °. By adopting the scheme, the first through hole 53 and the second through hole 71 are easy to process, and after the cylinder 50 and the partition plate 70 are assembled, the corner of the joint of the first through hole 53 and the second through hole 71 is smaller, so that the pressure loss of the refrigerant passing through the joint can be reduced, and the air suction quantity is improved.

In another embodiment of the present application, the center line of the first through hole 53 coincides with the center line of the second through hole 71. This solution facilitates the processing of the first and second through

holes

53 and 71, and also facilitates the alignment of the first and second through

holes

53 and 71 to communicate the two first through

holes

53 and 71 when assembling the cylinder 50 and the partition plate 70.

In another embodiment of the present application, the number of the cylinders 50 is two. This solution allows the compressor to have a small height dimension and to obtain a sufficiently large displacement, and the two cylinders 50 operate simultaneously with less vibration and more reliable operation. Meanwhile, the air suction channels 51 of the two adjacent air cylinders 50 are communicated, so that the air suction quantity and the refrigerating quantity or the heating quantity can be increased under the condition that the height of the air cylinder 50 of the compressor is not changed, and the energy efficiency ratio of the compressor is improved.

In another embodiment of the present application, the number of the cylinders 50 is three or more, each cylinder 50 has an air suction passage 51, an air suction hole communicating with the air suction passage 51, and a first through hole 53, a partition plate 70 is disposed between every two adjacent cylinders 50, each partition plate 70 is provided with a second through hole 71, and a second through hole 71 is communicated between every two adjacent first through holes 53. More than three cylinders 50 are arranged, so that larger displacement can be obtained, vibration caused by simultaneous work of the cylinders 50 is smaller, and work is more reliable. Meanwhile, the air suction channels 51 of the two adjacent air cylinders 50 are communicated, so that the air suction quantity and the refrigerating quantity or the heating quantity can be increased under the condition that the height of the air cylinder 50 of the compressor is not changed, and the energy efficiency ratio of the compressor is improved.

In another embodiment of the present invention, the accumulator 80 is used for collecting the refrigerant of the system and preventing a large amount of liquid refrigerant from entering the cylinder 50. The suction holes 52 of the respective cylinders 50 communicate with the accumulator 80 through different pipes 81, so that the refrigerant in the accumulator 80 enters the cylinders 50 through the pipes 81. One end of the pipe 81 is inserted into the suction hole 52, and the pipe 81 is fixed to the housing 10. This assembly is easy to implement and the duct 81 is reliably connected to the suction hole 52 of the cylinder 50, ensuring the reliability of the connection between the duct 81 and the casing 10 even during the operation of the compressor.

In another embodiment of the present application, a sliding vane groove (not shown) is formed in the cylinder 50, a sliding vane (not shown) is slidably installed in the sliding vane groove, an elastic member (not shown) is disposed between an inner end of the sliding vane and a bottom surface of the sliding vane groove, an outer end of the sliding vane abuts against an outer surface of the rotary piston 60, when the crankshaft 30 drives the rotary piston 60 to rotate, and under the action of the elastic member, the sliding vane makes a reciprocating linear movement, and the sliding vane divides an inner cavity of the cylinder 50 into a high-pressure cavity and a low-pressure cavity with constantly changing volumes, so as to pressurize a refrigerant.

In another embodiment of the present application, there is provided a heat exchange working apparatus including the rolling rotor type compressor described above. The heat exchange working equipment can be an air conditioner, a refrigerator or other cooling and heating equipment.

In the rolling rotor type compressor, at least two cylinders 50 are opened with first through holes 53 communicating with the suction passage 51 near the partition plate 70, and the first through holes 53 of the two cylinders 50 communicate with the second through holes 71 of the partition plate 70, so that the suction passages 51 of the adjacent two cylinders 50 communicate. In operation, the motor 20 drives the crankshaft 30 to rotate, and the crankshaft 30 drives the rotary piston 60 to move in the cylinder 50. The refrigerant in the liquid reservoir 80 is sucked into the suction holes 52 of each cylinder 50 respectively, the refrigerant enters the cylinders 50 through the suction channels 51, and meanwhile, the refrigerant from the suction hole 52 of one cylinder 50 enters the suction channel 51 of the other cylinder 50 through the first through hole 53 and the second through hole 71, so that the suction volume is increased and the cooling volume or the heating volume is increased under the condition that the height of the cylinder 50 of the compressor is not changed, the energy efficiency ratio of the compressor is improved, and the cylinder 50 is ensured to adopt a flat design to improve the pump efficiency. The compressor can improve the insufficient air suction amount after flattening the cylinder 50, especially in high-frequency operation. The compressor and the heat exchange working equipment have the advantages of simple structure, easy processing and low cost.

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.

Claims

1. A rolling rotor type compressor is characterized by comprising a liquid storage device and a compressor main body, wherein the compressor main body comprises a shell, a motor arranged in the shell, a crankshaft driven by the motor to rotate, a bearing for supporting the crankshaft, a plurality of cylinders distributed along the axial direction of the crankshaft, a rotary piston driven by the crankshaft and positioned in the cylinder, and a partition plate clamped between every two adjacent cylinders; the cylinder have the suction channel and with the suction hole of suction channel intercommunication, at least two are adjacent the cylinder be close to in set up on the axial terminal surface of baffle with the first through-hole of suction channel intercommunication, the baffle corresponding to second through-hole has been seted up to first through-hole department, adjacent two the suction hole of cylinder respectively with the reservoir intercommunication, and adjacent two the first through-hole of cylinder and adjacent two between the cylinder the second through-hole intercommunication of baffle makes adjacent two the suction channel intercommunication of cylinder.

2. A rolling rotor compressor according to claim 1, wherein the ratio of the cylinder diameter to the cylinder height of the cylinder is greater than or equal to 2.5.

3. A rolling rotor compressor according to claim 1, characterized in that the hydraulic diameter of the first through hole is adapted to the hydraulic diameter of the second through hole.

4. A rolling rotor compressor according to claim 1, wherein the first through hole and the second through hole have the same shape.

5. A rolling rotor compressor according to claim 1, wherein the first through-hole is circular or elliptical or polygonal, and the second through-hole is circular or elliptical or polygonal.

6. A rolling rotor compressor according to any one of claims 1 to 5, wherein an angle between a center line of the first through hole and a center line of the second through hole ranges from 0 to 60 °.

7. A rolling rotor compressor according to any one of claims 1 to 5, wherein a center line of the first through hole coincides with a center line of the second through hole.

8. A rolling rotor compressor according to any one of claims 1 to 5, wherein the number of cylinders is two.

9. A rolling rotor compressor according to any one of claims 1 to 5, wherein the number of the cylinders is three or more, each of the cylinders has the suction passage, a suction hole communicating with the suction passage, and the first through hole, the partition plate is provided between every two adjacent cylinders, the second through hole is provided in each partition plate, and the second through hole communicates between every two adjacent first through holes.

10. A heat exchange working apparatus comprising a rolling rotor compressor according to any one of claims 1 to 9.