CN210317754U

CN210317754U - Compressor variable volume structure, compressor and refrigeration cycle device

Info

Publication number: CN210317754U
Application number: CN201920941405.3U
Authority: CN
Inventors: 樊峰刚; 赵旭敏; 彭慧明; 张洪玮; 李自好
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-04-14
Anticipated expiration: 2029-06-20

Abstract

The utility model provides a compressor varactor structure, compressor and refrigeration cycle device. The compressor variable volume structure includes: the air cylinder is provided with a compression cavity and a sliding sheet groove positioned on the side wall of the compression cavity, a sliding sheet is arranged in the sliding sheet groove, and the sliding sheet slides in the sliding sheet groove to divide the compression cavity into two chambers; the positioning plate is arranged close to the compression cavity, a concave cavity is formed in the positioning plate, and the concave cavity is located above the sliding sheet groove or below the sliding sheet groove; and the control valve assembly is arranged in the concave cavity so as to enable the cavities on two sides of the sliding sheet to be communicated or separated. The utility model discloses a whether the work of control valve subassembly control cylinder makes the compressor reach the purpose of varactor volume to the cold volume demand of adaptation air conditioner under different environment. The variable volume structure is simple and easy to control, the change of control logic on the refrigeration cycle device can be reduced, and the pipeline of the refrigeration cycle device does not need to be matched and changed.

Description

Compressor variable volume structure, compressor and refrigeration cycle device

Technical Field

The utility model relates to an air conditioning technology field particularly, relates to a compressor varactor structure, compressor and refrigeration cycle device.

Background

The compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas, and is the heart of a refrigeration system. The high-pressure low-temperature refrigerant gas is sucked from the air suction pipe, the crankshaft is driven by the operation of the motor to compress a refrigerant in the air cylinder, and the high-temperature high-pressure refrigerant gas is discharged to the exhaust pipe to provide power for the refrigeration cycle.

With the improvement of national standards of air conditioner energy efficiency, the requirement on the energy efficiency of the compressor is higher and higher. In order to adapt to the change of refrigeration and heating under different climatic conditions, the air conditioner has to have lower refrigerating capacity under a light working condition and larger refrigerating capacity under a heavy working condition.

In order to solve the problem, variable-capacity compressors have been developed, namely the compressor operates in double cylinders when large cooling capacity is needed and operates in single cylinder when small cooling capacity is needed, and the process is called as the variable capacity of the compressor. However, the control modes of the variable capacity are different, some adopt a one-way valve to control whether the air suction of one air cylinder is used for controlling whether the air cylinder works, and some adopt a mode of a pin clamping a sliding sheet to control the following performance of the sliding sheet so as to achieve the purpose of variable capacity. However, both of these approaches require significant changes from the system piping and control logic, resulting in increased overall costs.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a compressor variable volume structure, a compressor and a refrigeration cycle apparatus, which solve the problem of high cost of the compressor in the prior art to realize the variable volume structure.

In order to achieve the above object, according to an aspect of the present invention, there is provided a compressor capacity varying structure, including: the air cylinder is provided with a compression cavity and a sliding sheet groove positioned on the side wall of the compression cavity, a sliding sheet is arranged in the sliding sheet groove, and the sliding sheet slides in the sliding sheet groove to divide the compression cavity into two chambers; the positioning plate is arranged close to the compression cavity, a concave cavity is formed in the positioning plate, and the concave cavity is located above the sliding sheet groove or below the sliding sheet groove; and the control valve assembly is arranged in the concave cavity so as to enable the cavities on two sides of the sliding sheet to be communicated or separated.

Further, the control valve assembly includes a butterfly valve having a width greater than a width of the slide slot.

Further, the butterfly valve comprises a valve plate and a valve body, a channel perpendicular to the sliding sheet is arranged on the valve body, and the valve plate is rotatably installed in the channel.

Furthermore, be provided with on the locating plate with the mounting groove of cavity intercommunication, control valve subassembly still includes drive structure, drive structure install in the mounting groove and with the butterfly valve drive is connected.

Further, the driving structure is an electric coil, the butterfly valve further comprises a rotating shaft perpendicular to the channel, the rotating shaft is fixedly connected with the valve plate, and the electric coil is in driving connection with the rotating shaft.

Further, the cross section of the cavity is circular or square.

Further, the positioning plate is a flange or a partition plate.

Further, the butterfly valve is mounted in the cavity through a sealing structure.

According to another aspect of the present invention, there is provided a compressor, comprising a variable volume structure, wherein the variable volume structure is the above-mentioned variable volume structure of the compressor.

Further, the compressor includes one or two or more cylinders.

According to another aspect of the present invention, there is provided a refrigeration cycle apparatus, including a compressor, the compressor being the above-mentioned compressor.

Use the technical scheme of the utility model, the during operation, the refrigerant gets into the compression intracavity from the air inlet of cylinder, and at this moment, the motor rotates and drives the bent axle and rotate, and then drives the roller and rotate, drives the gleitbretter reciprocating motion of the gleitbretter groove department in the cylinder when roller rotates. In the process, the compression cavity of the cylinder is divided into two cavities by the roller and the sliding sheet, the roller is driven by the crankshaft to rotate, the sliding sheet reciprocates in the sliding sheet groove of the cylinder, the crankshaft rotates for a circle to complete air suction from the air suction port, and then the air is exhausted from the air exhaust port for one cycle.

Because the utility model provides a compressor variable volume structure is provided with control valve subassembly, at the in-process of compressor work, through control valve subassembly's effect, can make the cavity intercommunication of gleitbretter both sides or cut off, when the cavity intercommunication of gleitbretter both sides, the cylinder stop work is convenient for realize the variable volume of compressor and is adjusted, for the structure that adopts pin or check valve to adjust the variable volume operation of compressor in the past, the utility model provides a compressor variable volume simple structure easily controls, can reduce control logic and manufacturing cost on the air conditioning system, not only can adapt to single cylinder compressor, can also adapt to multi-cylinder compressor.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

figure 1 schematically illustrates a cross-sectional view of a compressor displacement varying structure of the present invention as mounted on a crankshaft;

figure 2 schematically shows a front view of a flange of the present invention;

FIG. 3 schematically shows a cross-sectional view A-A in FIG. 2;

FIG. 4 schematically illustrates a cross-sectional view of the control valve assembly of the present invention as mounted on a flange;

figure 5 schematically illustrates a cross-sectional view of the control valve assembly of the present invention closed;

figure 6 schematically illustrates a cross-sectional view of the control valve assembly of the present invention when open.

Wherein the figures include the following reference numerals:

10. a cylinder; 11. a compression chamber; 12. a slide groove; 13. sliding blades; 20. positioning a plate; 21. a concave cavity; 22. installing a groove; 30. a control valve assembly; 31. a butterfly valve; 311. a valve plate; 312. a rotating shaft; 313. a valve body; 314. a channel; 32. an electric coil; 40. A roller; 50. a crankshaft.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1 to 6, according to an embodiment of the present invention, there is provided a compressor, which includes a housing assembly (not shown) and a pump body assembly disposed in the housing assembly.

The shell subassembly encloses and establishes and forms the installation cavity, and pump body subassembly is installed in the installation cavity. The pump block assembly includes a motor (not shown), a crankshaft 50, rollers 40, and a positive displacement structure.

Wherein, the varactor structure includes cylinder 10, locating plate 20, and control valve subassembly 30, during the installation, roller 40 cover is established on the eccentric block of bent axle 50, the motor is connected with bent axle 50 drive, cylinder 10 installs on bent axle 50, be provided with compression chamber 11 on the cylinder 10 and be located the slide groove 12 of compression chamber 11 lateral wall, be provided with gleitbretter 13 in the slide groove 12, gleitbretter 13 slides in slide groove 12 and separates compression chamber 11 into two cavities with roller 40 together, locating plate 20 pastes the compression chamber 11 that leans on cylinder 10 and sets up, set up cavity 21 on locating plate 20, this cavity 21 is located the top or the below of slide groove 12, control valve subassembly 30 installs in cavity 21 so that the cavity intercommunication or the wall of gleitbretter 13 both sides.

During actual operation, a refrigerant enters the compression cavity 11 from an air inlet of the cylinder 10, at this time, the motor rotates to drive the crankshaft 50 to rotate, and further drive the roller 40 to rotate, and the roller 40 drives the sliding sheet 13 at the sliding sheet groove 12 in the cylinder 10 to reciprocate when rotating. In the process, the compression cavity 11 of the cylinder 10 is divided into two chambers by the roller 40 and the slide sheet 13, the roller 40 is driven by the crankshaft 50 to rotate, the slide sheet 13 reciprocates in the slide sheet groove 12 of the cylinder 10, and the crankshaft 50 rotates for one circle to complete one cycle of air suction from the air suction port and exhaust from the air exhaust port.

Because the compressor variable volume structure in this embodiment is provided with the control valve assembly 30, in the working process of the compressor, the chambers on the two sides of the sliding sheet 13 can be communicated or separated through the action of the control valve assembly 30, when the chambers on the two sides of the sliding sheet 13 are communicated, the cylinder 10 stops working, the variable volume adjustment of the compressor is convenient to realize, compared with the structure that the variable volume operation of the compressor is adjusted by pins or one-way valves in the past, the compressor variable volume structure in this embodiment is simple and easy to control, the control logic and the production cost on an air conditioning system can be reduced, and the compressor variable volume structure not only can adapt to a single-cylinder compressor, but.

The utility model discloses a variable capacity is adjusted to the compressor can be realized, the variable capacity can change the discharge capacity of compressor, the discharge capacity change of compressor can make compressor control and change, the different discharge capacities of compressor mean the different refrigerating output of air conditioner promptly, when the air conditioner needs different refrigerating output according to the indoor outer temperature condition in the use, then the variable capacity compressor can provide the refrigerating output of several different discharge capacities as corresponding, and can be to the optimal energy efficiency ratio of demand design of different refrigerating output sections, the energy efficiency ratio is higher means more energy-conserving, more power saving. Therefore, compared with the conventional compressor, the variable-capacity compressor structure can be more efficient, more energy-saving and more power-saving.

Preferably, the positioning plate in this embodiment may be a flange, or may be a partition plate. When the compressor in this embodiment is a single-cylinder compressor, the cavity 21 may be disposed on the upper flange or the lower flange of the compressor during actual processing, and in this embodiment, the cavity 21 is preferably disposed on the lower flange.

When the compressor in this embodiment is configured as a multi-cylinder compressor, a partition plate is disposed between two adjacent cylinders, and during actual processing, the cavity 21 may be disposed on the flange, or the cylinders may be disposed on the partition plate, specifically, determined according to the position of the compression cavity 11 of the cylinder 10.

Specifically, the control valve assembly 30 in this embodiment includes a butterfly valve 31, which butterfly valve 31 is mounted in the cavity 21 to facilitate communication and isolation of the chambers on both sides of the sliding vane 13 for variable capacity operation of the compressor.

In order to prevent leakage, the butterfly valve 31 in this embodiment is installed in the cavity 21 through a sealing structure, where the sealing structure may be a sealing filler or a sealing glue, and any other deformation mode under the concept of the present invention is within the protection scope of the present invention.

The butterfly valve 31 in this embodiment includes a valve plate 311 and a valve body 313, a channel 314 perpendicular to the sliding plate 13 is disposed on the valve body 313, the valve plate 311 is rotatably mounted in the channel 314 to separate or communicate the channel 314, and further communicate or separate chambers on two sides of the sliding plate 13, and the butterfly valve is simple in structure and convenient to implement. The cross section of the cavity 21 is circular or square, and is selected according to the actual structural space, and the valve body 313 in this embodiment is a cube, a cuboid or a cylinder.

The flange and/or the partition plate are provided with mounting grooves 22 communicated with the cavity 21, and the control valve assembly 30 further comprises a driving structure which is mounted in the mounting grooves 22 and is in driving connection with the butterfly valve 31 so as to enable the butterfly valve 31 to rotate in the channel 314. Preferably, the driving structure in this embodiment is an electric coil 32, the butterfly valve 31 further includes a rotating shaft 312 perpendicular to the channel 314, the rotating shaft 312 is fixedly connected with the valve plate 311, and the electric coil 32 is in driving connection with the rotating shaft 312.

It can be seen that, the utility model discloses a butterfly valve 31 adopts the electric mode drive, and opening and closing of butterfly valve 31 is controlled by electric coil 32, and butterfly valve 31 opens when electric coil 32 circular telegram, and butterfly valve 31 closes when electric coil 32 cuts off the power supply. When the butterfly valve 31 is opened, the passage below the sliding sheet 13 is communicated, the cylinder 10 does not work after the high-low pressure chambers on the two sides of the sliding sheet 13 are communicated, when the butterfly valve 31 is closed, the passage 314 below the sliding sheet 13 is closed, and the cylinder 10 enters a working mode.

Preferably, the width of the butterfly valve 31 in this embodiment is larger than the width of the sliding vane slot 12, so as to connect or separate the chambers on both sides of the sliding vane 13.

According to the above embodiment, the control valve assembly 30 of the present invention comprises the electric coil 32 and the butterfly valve 31, the valve body 313 of the butterfly valve 31 comprises the circular channel 314 and the valve sheet 311 disposed in the channel 314, and the valve sheet 311 is connected to the rotating shaft 312 and driven by the rotating shaft 312 to rotate. The diameter of the valve plate 311 is slightly smaller than the inner circle diameter of the channel 314 on the valve body 313, and the valve plate and the valve body can play a role in sealing by matching, so that high-pressure and low-pressure gas can be separated. The channel 314 on the valve body 313 is in a through structure in the horizontal direction perpendicular to the rotating shaft 312, and is closed in the vertical direction perpendicular to the rotating shaft 312, and when the valve sheet 311 is driven by the rotating shaft 312 to be in the vertical direction, the inner circle of the valve sheet 311 and the channel 314 of the valve body 313 is closed, and the channel 314 in the horizontal direction can be blocked. When the valve sheet 311 is driven by the rotating shaft 312 to be in the horizontal direction, the valve sheet 311 is located in the middle of the horizontal channel 314, and the thickness of the valve sheet 311 is smaller than the diameter of the channel 314, so that flow guide channels are formed at the upper side and the lower side of the valve sheet 311, and high-pressure gas and low-pressure gas at the two sides of the sliding sheet 13 are communicated. One end of a valve rotating shaft 312 of the butterfly valve 31 is fixed with the valve plate 311, and the other end is disposed in the electric coil 32, and rotates under the electromagnetic action of the electric coil 32, and can control the rotating angle, and then drive the valve plate 311 to rotate by a fixed angle. The electric coil 32 mainly generates an electromagnetic field through the change of current, and provides the electromagnetic force for the valve rotating shaft 312 to perform rotary motion, the electric coil 32 is controlled by a controller of an air conditioning system or a heat pump assembly, when the cylinder does not need to work, the system controller supplies power for the electric coil 32, the electric coil 32 provides the required electromagnetic force for the valve rotating shaft 312, so that the valve rotating shaft 312 rotates to drive the valve plate 311 to be in the horizontal direction, at the moment, the channel 314 on the valve body 313 is opened, the high-low pressure chamber is communicated, and the cylinder 10 does not work. When the system needs the work of this cylinder 10, the controller gives electric coil 32 outage, makes valve block 311 resume vertical direction, and butterfly valve 31 closes this moment, and the high low pressure cavity separates, and cylinder 10 is in normal operating condition.

The utility model discloses a compressor varactor structure increases spare part few, simple structure, and control logic is simple, can effectively reduce product cost.

According to the utility model discloses an on the other hand provides a refrigeration cycle device, and this refrigeration cycle device includes the compressor in the above-mentioned embodiment, and this refrigeration cycle device especially indicates cold warm air conditioner and heat pump assembly, is fit for using in the great or some environment abominable regions of different season environmental changes to can have outstanding energy efficiency ratio when satisfying the demand of different seasons refrigerating output, in order to reach the target of energy-conserving power saving.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: a butterfly valve with the width larger than the thickness of the sliding piece is arranged below the sliding piece, the butterfly valve is provided with an electric coil, the opening and the closing of the butterfly valve are controlled by the electric coil, and high-low pressure chambers at two sides of the sliding piece are communicated when the butterfly valve is opened, so that the unloading of the compression chamber is realized; when the butterfly valve is closed, high pressure and low pressure are formed on two sides of the sliding sheet, and the air cylinder works normally. It is thus clear that the utility model discloses a work of butterfly valve structure control cylinder is whether, makes the compressor reach the purpose of varactor volume to the cold volume demand of adaptation air conditioner under different environment. The variable volume structure is simple and easy to control, the change of control logic on the refrigeration cycle device can be reduced, and the pipeline of the refrigeration cycle device does not need to be matched and changed.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compressor displacement structure, comprising:

the air cylinder (10) is provided with a compression cavity (11) and a sliding sheet groove (12) located on the side wall of the compression cavity (11), a sliding sheet (13) is arranged in the sliding sheet groove (12), and the sliding sheet (13) slides in the sliding sheet groove (12) to divide the compression cavity (11) into two chambers;

the positioning plate (20) is arranged to be attached to the compression cavity (11), a concave cavity (21) is formed in the positioning plate (20), and the concave cavity (21) is located above the sliding sheet groove (12) or below the sliding sheet groove (12);

and the control valve assembly (30) is installed in the concave cavity (21) to enable the chambers on two sides of the sliding sheet (13) to be communicated or separated.

2. Compressor displacement volume according to claim 1, wherein the control valve assembly (30) comprises a butterfly valve (31), the butterfly valve (31) having a width greater than the width of the vane slot (12).

3. Compressor variable volume structure according to claim 2, characterized in that the butterfly valve (31) comprises a valve plate (311) and a valve body (313), the valve body (313) is provided with a channel (314) perpendicular to the sliding vane (13), and the valve plate (311) is rotatably mounted in the channel (314).

4. The compressor displacement volume changing structure according to claim 3, wherein the positioning plate (20) is provided with a mounting recess (22) communicating with the cavity (21), and the control valve assembly (30) further comprises a driving structure mounted in the mounting recess (22) and in driving connection with the butterfly valve (31).

5. The compressor variable volume structure according to claim 4, wherein the driving structure is an electric coil (32), the butterfly valve (31) further comprises a rotating shaft (312) perpendicular to the channel (314), the rotating shaft (312) is fixedly connected with the valve plate (311), and the electric coil (32) is in driving connection with the rotating shaft (312).

6. Compressor displacement-changing structure according to claim 1, characterised in that the cavity (21) is circular or square in cross-section.

7. Compressor varactor structure according to one of claims 1 through 6, characterized in that the positioning plate (20) is a flange or a partition plate.

8. Compressor displacement-changing structure according to claim 2, characterized in that the butterfly valve (31) is mounted in the cavity (21) by means of a sealing structure.

9. A compressor comprising a variable capacity structure, wherein the variable capacity structure is a compressor variable capacity structure as claimed in any one of claims 1 to 8.

10. Compressor according to claim 9, characterized in that it comprises one or two or more cylinders (10).

11. A refrigeration cycle apparatus comprising a compressor, characterized in that the compressor is the compressor of claim 9 or 10.