WO2020062608A1

WO2020062608A1 - Variable capacity compressor, cylinder switching method and air conditioner

Info

Publication number: WO2020062608A1
Application number: PCT/CN2018/121189
Authority: WO
Inventors: 许克; 刘群波; 戎耀鹏
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-09-25
Filing date: 2018-12-14
Publication date: 2020-04-02
Also published as: CN109281834A

Abstract

A variable capacity compressor, a cylinder switching method and an air conditioner. The variable capacity compressor comprises: a cylinder (1); a rotor (2), provided in the cylinder (1), and forming an air chamber between the rotor and the inner wall of the cylinder (1), the rotor (2) being movable along the inner wall of the cylinder (1); and a sliding piece (3) having a first operating position and a second operating position. In the first operating position, the sliding piece (3) is not in contact with the rotor (2), and the cylinder (1) is in a non-operating state; and in the second operating position, the sliding piece (3) is in contact with the rotor (2), so as to divide the air chamber into a suction chamber and a discharge chamber, and the cylinder (1) is in an operating state. The sliding piece (3) is configured to shift from the first operating position to the second operating position when the positional relationship between the sliding piece (3) and the rotor (2) satisfies a preset condition. The variable capacity compressor can reduce the movement stroke of the sliding piece to the rotor (2) when the sliding piece (3) shifts from the first operating position to the second operating position, and reduce the impact force and noise generated by the collision between the two, facilitating full contact in one step, and reducing the impact deformation of the sliding piece (3) and the rotor (2).

Description

Variable capacity compressor, cylinder block switching method and air conditioner

This application is based on CN application number 201811119104.9, and the application date is September 25, 2018. Basis, and claims its priority, the disclosure of this CN application is incorporated herein as a whole.

Technical field

The present disclosure relates to the field of compressors, and in particular, to a variable capacity compressor, a cylinder block switching method, and an air conditioner.

Background technique

In order to solve the industry problem of low energy efficiency in multi-connection and low load, the multi-connection system uses compressors with switchable size and volume. The switch of the compressor cylinder is realized by the contact or separation of the sliding blade and the rotor. It can be seen that the core of the compressor cylinder switching technology is the control of the contact method of the sliding blade and the rotor.

In the related control technology, when the unit has a single-cylinder cutting double-cylinder demand, it immediately applies pressure to the sliding blade to push the sliding blade to contact the rotor. This process does not consider the relative position of the sliding blade and the rotor to blindly cut the cylinder. However, during the operation of the compressor, the rotor is rotating at a high speed. Such blind cutting of the cylinder will cause the vane to violently collide with the rotor, causing problems such as the vane and the rotor not being in contact or deformed at once, which will affect the use of the compressor. life.

Summary of the Invention

One of the objectives of the present disclosure is to propose a variable-capacity compressor, a cylinder switching method, and an air conditioner, which are used to alleviate the impact deformation problem of a sliding blade and a rotor.

According to an aspect of some embodiments of the present disclosure, a variable-capacity compressor includes: a cylinder body; a rotor provided in the cylinder body and forming an air cavity between an inner wall of the cylinder body, and the rotor may be along the The inner wall of the cylinder moves; and the sliding plate has a first station and a second station; the first station, the sliding plate is not in contact with the rotor, and the cylinder is in a non-working state; the second station The sliding plate is in contact with the rotor to divide the air cavity into an intake cavity and an exhaust cavity, and the cylinder is in a working state; the sliding plate is configured to be arranged between the sliding plate and the rotor When the positional relationship between the rotors satisfies a preset condition, the first station is switched to the second station.

In some embodiments, the variable-capacity compressor further includes a detection device for detecting a positional relationship between the rotor and the sliding blade.

In some embodiments, the variable-capacity compressor further includes a control unit electrically connected to the detection device, for receiving a signal sent by the detection device, and between the rotor and the sliding blade. When the positional relationship satisfies a preset condition, the rotor is controlled to switch from the first station to the second station.

In some embodiments, the sliding plate is configured to switch from the first station to the second station when an included angle between a central axis of the sliding plate and the connecting line OO1 is within a preset range; wherein, the The connection line OO1 refers to the connection line between the circle center O of the cylinder block and the circle center O1 of the rotor.

In some embodiments, the sliding plate is configured to switch from the first station to the second station when the angle between the central axis of the sliding plate and the connection line OO1 is zero; wherein the connection line OO1 refers to a line connecting the circle center O of the cylinder body and the circle center O1 of the rotor.

In some embodiments, the sliding plate is disposed in a chute on the cylinder body; at the first station, the sliding plate is relatively stationary with the chute; at the second station, the sliding plate The rotor moves along the inner wall of the cylinder, and the sliding plate reciprocates in the sliding groove.

In some embodiments, at a first station, an end portion of the sliding plate for contacting the rotor is located in the chute.

In some embodiments, the variable-capacity compressor includes a gas path for providing pressure to the sliding blade, so that the rotor moves along the inner wall of the cylinder at a second station, The sliding blade is always in contact with the rotor.

In some embodiments, the cylinder includes a first cylinder and a second cylinder; the rotor includes a first rotor and a second rotor; the sliding plate includes a first sliding plate and a second sliding plate; A first rotor is disposed in the first cylinder, and the first sliding plate is used to cooperate with the first rotor; the second rotor is disposed in the second cylinder, and the second sliding The sheet is used to cooperate with the second rotor.

In some embodiments, the volume of the first cylinder is the same as or different from the volume of the second cylinder.

In some embodiments, the detection device includes an encoder.

Some embodiments of the present disclosure provide a cylinder block switching method of the above-mentioned variable-capacity compressor, which detects the position of the rotor in the cylinder body when the cylinder body is switched from the non-operating state to the operating state. When the positional relationship of 满足 satisfies a preset condition, a force is applied to the sliding plate to make the sliding plate contact the rotor.

In some embodiments, the preset condition that the positional relationship between the rotor and the sliding plate satisfies is that the included angle between the central axis of the sliding plate and the connecting line OO1 is within a preset range, where the connecting line OO1 refers to the The line connecting the circle center O and the circle center O1 of the rotor.

In some embodiments, the preset condition that the positional relationship between the rotor and the sliding plate satisfies is that the angle between the central axis of the sliding plate and the connecting line OO1 is zero, where the connecting line OO1 refers to the circle center O and The line connecting the center O1 of the rotor.

Some embodiments of the present disclosure provide an air conditioner including the variable capacity compressor described above.

According to the variable capacity compressor of the embodiment of the present disclosure, the sliding vane is configured to switch from the first station to the second station when the positional relationship between the sliding vane and the rotor satisfies a preset condition. Aiming at the timing of the action of the sliding blade when the compressor cuts the cylinder, a technical solution to consider the rotor position when cutting the cylinder is provided to reduce the stroke of the sliding blade to the rotor when the sliding blade is switched from the first station to the second station. Reduce the impact force and noise generated by the collision between the two, which is conducive to a single contact, reducing the impact deformation of the sliding blade and the rotor.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram illustrating a variable capacity compressor according to some embodiments of the present disclosure;

2 is a schematic diagram illustrating a cylinder block according to some embodiments of the present disclosure;

FIG. 3 is a schematic diagram illustrating a movement track of a rotor in a cylinder according to some embodiments of the present disclosure; FIG.

4 is a schematic diagram showing a single-cylinder operation of a variable-capacity compressor according to some embodiments of the present disclosure;

FIG. 5 is a schematic diagram illustrating the dual-cylinder operation of a variable capacity compressor according to some embodiments of the present disclosure.

Description of the symbols in the drawings:

1-cylinder block; 11-first block; 12-second block;

2-rotor; 21-first rotor; 22-second rotor;

3-slider; 31-first slider; 32-second slider.

detailed description

The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, and not all the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

In the description of this disclosure, it should be understood that the terms "center", "portrait", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inside", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply The device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the scope of protection of the present disclosure.

As shown in FIG. 1, it is a schematic diagram of a variable capacity compressor provided by some embodiments of the present disclosure.

In some embodiments, the variable displacement compressor includes a cylinder block 1. The cylinders 1 may be provided with one, two or more. That is, the variable capacity compressor can be a single-cylinder compressor, a double-cylinder compressor, or a multi-cylinder compressor with more than two cylinders. The cylinder block 1 in the two-cylinder compressor and the multi-cylinder compressor may work simultaneously, or at least one of them may work. By controlling the number of the cylinders 1 in the working state, the volume of the variable displacement compressor is adjusted to realize variable displacement.

In some embodiments, the variable-capacity compressor includes a rotor 2 provided in the cylinder block 1, and an air cavity is formed between the rotor 2 and an inner wall of the cylinder block 1. The rotor 2 is movable along the inner wall of the cylinder block 1. In the case where the variable-capacity compressor includes two or more cylinder blocks 1, a rotor 2 is arranged in each cylinder block 1. Each cylinder block 1 is independent of each other.

In some embodiments, the variable capacity compressor includes a sliding vane 3 having a first station and a second station. At the first station, the sliding plate 3 is not in contact with the rotor 2. At this time, the cylinder block 1 is in a non-working state. At the second station, the sliding plate 3 is in contact with the rotor 2 to divide the air chamber into an air intake chamber and an exhaust chamber. At this time, the cylinder 1 is in a working state.

The sliding plate 3 is configured to switch from the first station to the second station when the positional relationship between the sliding plate 3 and the rotor 2 satisfies a preset condition.

In view of the timing of the action of the sliding blade when the compressor cuts the cylinder, the present disclosure provides a technical solution to consider the position of the rotor when cutting the cylinder, so as to reduce the direction of the sliding blade 3 when the sliding plate 3 is switched from the first station to the second station. The moving stroke of the rotor 2 reduces the impact force and noise generated by the collision between the two, which is beneficial for a single contact and reduces the impact deformation of the sliding blade 3 and the rotor 2.

As shown in FIG. 2, a cavity is formed between the rotor 2 and the inner wall of the cylinder block 1. When the cylinder block 1 works normally, the sliding plate 3 and the rotor 2 are always in close contact. The cavity formed between the inner wall of the cylinder block 1 and the rotor 2 is divided into a suction chamber and an exhaust chamber. The rotor 2 moves, and the cylinder block 1 is in a working state. , Normal inhalation and exhaust. When the sliding plate 3 and the rotor 2 are separated, there is only one cavity in the cylinder body 1, which cannot normally inhale and exhaust air, and the cylinder body 1 is in a non-working state.

The switching between the working state and the non-working state of the cylinder block 1 is achieved by controlling the contact and separation of the sliding plate 3 and the rotor 2 of the cylinder block 1.

In some embodiments, the variable-capacity compressor includes a detection device for detecting a position of the rotor 2 in the cylinder 1, that is, detecting a positional relationship between the rotor 2 and the sliding plate 3.

In some embodiments, when the cylinder 1 is switched from the non-working state to the working state, the position of the rotor 2 in the cylinder 1 is detected by a detection device, and when the positional relationship between the rotor 2 and the sliding plate 3 meets a preset condition For example, when the distance between the rotor 2 and the sliding plate 3 is within a preset range, force is applied to the sliding plate 3 to make the sliding plate 3 contact the rotor 2 to improve the contact efficiency between the sliding plate 3 and the rotor 2 and reduce the sliding The stroke of the blade 3 to the rotor 2 reduces the noise generated by the multiple impacts of the blade 3 and the rotor 2 during the cylinder cutting process, and reduces the impact force when the blade 3 contacts the rotor 2 to increase the service life of the internal components of the compressor. .

In some embodiments, the variable-capacity compressor includes a control unit, and the control unit is electrically connected to the detection device. The control unit is used for receiving the position signal of the rotor 2 sent by the detection device, and when the positional relationship between the rotor 2 and the sliding blade 3 satisfies a preset condition, the control unit 2 switches the rotor 2 from the first station to the second station.

The preset condition of the positional relationship between the rotor 2 and the sliding plate 3 in the present disclosure may be that the distance between the rotor 2 and the sliding plate 3 is less than or equal to a preset value. Preferably, the preset condition of the positional relationship between the rotor 2 and the sliding plate 3 may be that the distance between the end of the sliding plate 3 that is in contact with the rotor 2 and the outer edge of the rotor 2 is less than or equal to a preset value.

The preset condition of the positional relationship between the rotor 2 and the sliding plate 3 may be that the included angle between the central axis of the sliding plate 3 and the connecting line OO1 is within a preset range. The connection line OO1 refers to the connection line between the circle center O of the cylinder 1 and the circle center O1 of the rotor 2.

It should be noted that the connection line OO1 in the present disclosure has directivity, that is, the direction from the circle center O of the cylinder block 1 to the circle center O1 of the rotor 2.

In some embodiments, the sliding plate 3 is configured to switch from the first station to the second station when the included angle between the central axis of the sliding plate 3 and the connecting line OO1 is within a preset range, where the connecting line OO1 is Refers to the connection between the circle center O of the cylinder 1 and the circle center O1 of the rotor 2.

In some embodiments, the sliding plate 3 is configured to switch from the first station to the second station when the angle between the central axis of the sliding plate 3 and the connecting line OO1 is zero, where the connecting line OO1 refers to a cylinder The line O between the center O of the body 1 and the center O1 of the rotor 2.

As shown in Fig. 3, define: O is the center of the cylinder 1, O1 is the center of the rotor 2, and the rotor 2 moves around the center O of the cylinder 1 at an angular velocity ω. The central axis of the sliding plate 3 and the cylinder 1 are defined. The included angle between the center O of the circle O and the center O1 of the rotor 2 is θ.

During the cooperative work of the sliding plate 3 and the rotor 2, the included angle θ between the central axis of the sliding plate 3 and the connection line OO1 includes, but is not limited to, 0 °, 90 °, 180 °, and 270 °.

The included angle θ is the included angle between the moving axis of the rotor 3 in the direction of the rotor 2 and the connecting line OO1. θ = 0 °, the line OO1 points in the direction of the slider 3. θ = 180 °, the line OO1 points in the opposite direction of the slide 3.

Because the relevant cylinder cutting technology does not consider the position of the rotor, when there is a demand for cylinder cutting, it directly applies pressure to the sliding blade to push the sliding blade into contact with the rotor. For example, when θ = 90 °, θ = 180 °, or θ = 270 °, the distance between the tip of the sliding blade and the outer edge of the rotor is large, and the sliding stroke of the sliding blade is large, which causes the speed of the sliding blade to contact the rotor to increase, resulting in The sliding blade can hit the rotor violently.

In some embodiments of the present disclosure, when a cylinder cutting is required, a detection device is used to detect the position of the rotor 2 at all times. When θ = 0 ° is detected, the lock on the sliding plate 3 is released and pressure is applied to the sliding plate 3. One end of the sliding plate 3 is brought into contact with the outer edge of the rotor 2, and then the sliding plate 3 is kept close to the outer edge of the rotor 2 and reciprocates in the direction of the sliding groove.

It can be understood that when θ = 0 °, the gap between the outer edge of the sliding plate 3 and the rotor 2 is the smallest, that is, the collision degree between the sliding plate 3 and the rotor 2 is the weakest. However, it is not limited that the slider 3 can be released only when the angle θ is 0 °, and the slider 3 can also be released within a preset small angle range.

In some embodiments, the cylinder wall of the cylinder body 1 is provided with a sliding groove, and the sliding plate 3 is provided in the sliding groove. In the first station, the sliding plate 3 and the sliding groove are relatively stationary; in the second station, the rotor 2 moves along the inner wall of the cylinder body 1, and the sliding plate 3 reciprocates in the sliding groove.

In some embodiments, at the first station, the end of the sliding plate 3 that is in contact with the rotor 2 is located in the sliding groove to prevent the sliding plate 3 from affecting the movement of the rotor 2.

In some embodiments, at the first station, the sliding plate 3 is locked by the locking member such as a pin, and is stationary relative to the sliding slot. When the sliding plate 3 is switched from the first station to the second operation, the lock on the sliding plate 3 is released, and the sliding plate 3 moves to the rotor 2.

In some embodiments, the variable-capacity compressor includes a gas path, which is used to provide pressure to the sliding vane 3, so that the sliding vane 3 always communicates with the rotor 2 along the inner wall of the cylinder 1 at the second station. The rotor 2 is in contact.

In some embodiments, when the cylinder 1 is ready to start working and the detection device detects that the rotor 2 reaches the position of the sliding plate 3, the sliding plate 3 is switched from the first station to the second station.

In some embodiments, when the cylinder block 1 is in a non-operating state, the back of the sliding plate 3 of the cylinder block 1 is not stressed. In some embodiments, the slide 3 is stuck by a pin. The sliding blade 3 is completely separated from the rotor 1, that is, the cylinder 1 cannot normally suck and exhaust, and is in a non-working state.

When the cylinder body 1 is switched from the non-working state to the working state, pressure is applied to the sliding plate 3 to make the sliding plate 3 move rapidly and collide with the rotor 2 rotating at high speed, and the sliding plate 3 is closely attached to the rotor under the continuously applied pressure. 2 and reciprocate along the chute.

In some embodiments, the moment when the sliding plate 3 is switched from the first station to the second station is controlled, the distance between the rotor 2 and the sliding plate 3 is the shortest.

In some embodiments, the detection device includes an encoder, but is not limited thereto.

As shown in FIGS. 4 and 5, in some embodiments, the variable-capacity compressor includes a first cylinder block 11 and a second cylinder block 12; and further includes a first rotor 21 and a second rotor 22 (the first rotor 21 and the first The two rotors 22 may also be different parts of the same rotor); the first rotor 31 and the second rotor 32 are also included. The first rotor 21 is provided in the first cylinder body 11, and the first sliding plate 31 is used to cooperate with the first rotor 21; the second rotor 22 is provided in the second cylinder body 12, and the second sliding plate 32 is used to communicate with the first cylinder body 12. The two rotors 22 work together.

The first cylinder block 11 and the second cylinder block 12 are independent of each other. The volume of the first cylinder 11 and the volume of the second cylinder 12 may be the same or different.

As shown in FIG. 4 and FIG. 5, the volume of the first cylinder block 11 is different from that of the second cylinder block 12, that is, the size-volume switching compressor, and the inside of the compressor is divided into large and small independent cylinders.

As shown in FIG. 4, the first cylinder 11 is in a working state, and the first sliding plate 31 and the first rotor 21 are always in contact. The second cylinder block 12 is in a non-operating state, and the second sliding plate 32 is separated from the second rotor 22.

In the process of the compressor cutting from a single cylinder to a double cylinder, pressure is applied to the second sliding plate 32 to cause the second sliding plate 32 to move rapidly and collide with the second rotor 22 rotating at high speed. Under the applied pressure, it closely contacts the second rotor 22 and reciprocates along the chute to complete the single-cylinder and double-cylinder operation, as shown in FIG. 5.

Some embodiments provide a cylinder block switching method of a variable capacity compressor, which detects the position of the rotor 2 in the cylinder block 1 when the cylinder block 1 is ready to perform compression work, that is, when the cylinder block 1 is switched from the non-operation state to the operation state. When the positional relationship between the rotor 2 and the sliding plate 3 satisfies a preset condition, force is applied to the sliding plate 3 to bring the sliding plate 3 into contact with the rotor 2 and, in the working state of the cylinder 1, the sliding plate 3 is in the process of the rotor 2 moving. Always in contact with the rotor 2.

Due to the relatively new technology of variable capacity compressors, noise may be generated during compressor operation due to various factors such as gas shock pressure. However, the source of the noise generated during the transition from the non-working state to the working state of the cylinder block 1 has not been found. Therefore, the related technology does not consider the rotor position. When the cylinder is cut directly, it will cause the sliding blade and the rotor Large impact force and high noise.

In the present disclosure, in view of the timing of the sliding blade action when the compressor cuts the cylinder, the inventor proposes a technical solution that considers the position of the rotor when cutting the cylinder to reduce the stroke of the sliding blade 3 to the rotor 2 and reduce the collision between the two. Impact force and noise.

When the present disclosure meets the timing of the action of the sliding plate 3, the locking of the sliding plate 3 is released, the sliding plate 3 is pushed by pressure and contacts the rotor 2, so that the cylinder 1 can work normally. When the cylinder body 1 is switched from the non-working state to the working state, the problem that the sliding blade 3 and the rotor 2 cannot be in one place or severely collided and deformed for a long time is solved.

In some embodiments, the positional relationship between the rotor 2 and the sliding plate 3 satisfies a preset condition may include that the distance between the end of the sliding plate 3 and the outer edge of the rotor 2 is zero; and the central axis of the sliding plate 3 and the connecting line OO1 are also included. The included angle is zero.

In some embodiments, in a state where the rotor 2 moves along the inner wall of the cylinder block 1 and the slider 3 is in contact with the rotor 2, the slider 3 performs a linear reciprocating motion.

Some embodiments provide an air conditioner including the variable capacity compressor described above.

In some embodiments, the variable-capacity compressor includes a two-cylinder compressor or a multi-cylinder compressor with more than two cylinders.

In the description of this disclosure, it should be understood that the use of words such as "first", "second", and "third" to define components is only for the convenience of distinguishing the above components. If not stated otherwise, The above words have no special meaning, and therefore cannot be understood as limiting the scope of protection of the present disclosure.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not limited thereto. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the present invention can still Modifications or equivalent replacements of some of the technical features of the disclosed specific embodiments; without departing from the spirit of the technical solutions of the present disclosure, they should all be covered within the scope of the technical solutions claimed by the present disclosure.

Claims

A variable capacity compressor, comprising:

Cylinder block (1);

A rotor (2) is provided in the cylinder body (1) and forms an air cavity between the inner wall of the cylinder body (1), and the rotor (2) can move along the inner wall of the cylinder body (1) ;as well as

The sliding plate (3) has a first station and a second station; the first station, the sliding plate (3) is not in contact with the rotor (2), and the cylinder body (1) is in a non-working state A second station, the sliding plate (3) is in contact with the rotor (2) to divide the air cavity into an air suction cavity and an exhaust cavity, and the cylinder body (1) is in a working state; The sliding plate (3) is configured to switch from the first station to the second station when the positional relationship between the sliding plate (3) and the rotor (2) meets a preset condition.
The variable capacity compressor according to claim 1, further comprising detecting means for detecting a positional relationship between the rotor (2) and the sliding blade (3).
The variable capacity compressor according to claim 2, further comprising a control unit electrically connected to the detection device for receiving a signal sent by the detection device, and connecting the rotor (2) with When the positional relationship between the sliding plates (3) satisfies a preset condition, the rotor (2) is controlled to switch from the first station to the second station.
The variable-capacity compressor according to claim 1, wherein the sliding plate (3) is configured so that when the included angle between the central axis of the sliding plate (3) and the connecting line OO1 is within a preset range, A station is converted to a second station; wherein the connection line OO1 refers to a connection line between the circle center O of the cylinder block (1) and the circle center O1 of the rotor (2).
The variable capacity compressor according to claim 1, wherein the sliding blade (3) is configured to be operated by the first tool when an angle between a central axis of the sliding blade (3) and a line OO1 is zero. The position shifts to the second station; wherein the connection line OO1 is the connection line between the circle center O of the cylinder block (1) and the circle center O1 of the rotor (2).
The variable capacity compressor according to claim 1, wherein the sliding plate (3) is provided in a chute on the cylinder body (1); when in the first station, the sliding plate (3) Relative to the chute; at the second station, the rotor (2) moves along the inner wall of the cylinder (1), and the slide (3) reciprocates in the chute.
The variable capacity compressor according to claim 6, wherein, at the first station, an end portion of the sliding plate (3) for contacting the rotor (2) is located in the sliding groove.
The variable-capacity compressor according to claim 1, comprising a gas path for providing pressure to the sliding vane (3) so that at a second station, the rotor (2) follows During the movement of the inner wall of the cylinder body (1), the sliding plate (3) is always in contact with the rotor (2).
The variable capacity compressor according to claim 1, wherein the cylinder block (1) includes a first cylinder block (11) and a second cylinder block (12); and the rotor (2) includes a first rotor (21) ) And a second rotor (22); the sliding plate (3) includes a first sliding plate (31) and a second sliding plate (32); the first rotor (21) is provided in the first cylinder block ( 11), the first sliding blade (31) is used to cooperate with the first rotor (21); the second rotor (22) is provided in the second cylinder (12), and the The second sliding plate (32) is used to cooperate with the second rotor (22).
The variable displacement compressor according to claim 9, wherein the volume of the first cylinder (11) is the same as or different from the volume of the second cylinder (12).
A variable capacity compressor according to claim 2, wherein said detection means includes an encoder.
A cylinder block switching method for a variable capacity compressor according to claim 1, wherein, when the cylinder block (1) is switched from the non-operating state to the operating state, the detection of the rotor (2) in the cylinder block (1) is performed. Position, when the positional relationship between the rotor (2) and the sliding plate (3) satisfies a preset condition, force is applied to the sliding plate (3), so that the sliding plate (3) is in contact with the rotor (2).
The cylinder block switching method for a variable capacity compressor according to claim 12, wherein the preset condition that the positional relationship between the rotor (2) and the sliding plate (3) satisfies is: the center axis of the sliding plate (3) and The included angle of the connection line OO1 is within a preset range, where the connection line OO1 is the connection line between the circle center O of the cylinder block (1) and the circle center O1 of the rotor (2).
The method for switching cylinders of a variable-capacity compressor according to claim 12, wherein the preset condition that the positional relationship between the rotor (2) and the sliding plate (3) satisfies is: the central axis of the sliding plate (3) The included angle with the connection line OO1 is zero, where the connection line OO1 is the connection line between the circle center O of the cylinder block (1) and the circle center O1 of the rotor (2).
An air conditioner comprising the variable capacity compressor according to any one of claims 1 to 11.