CN109281834A - Positive displacement compressor, cylinder body switching method and air-conditioning - Google Patents

Positive displacement compressor, cylinder body switching method and air-conditioning Download PDF

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Publication number
CN109281834A
CN109281834A CN201811119104.9A CN201811119104A CN109281834A CN 109281834 A CN109281834 A CN 109281834A CN 201811119104 A CN201811119104 A CN 201811119104A CN 109281834 A CN109281834 A CN 109281834A
Authority
CN
China
Prior art keywords
rotor
slide plate
cylinder body
station
positive displacement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811119104.9A
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Chinese (zh)
Inventor
许克
刘群波
戎耀鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201811119104.9A priority Critical patent/CN109281834A/en
Priority to PCT/CN2018/121189 priority patent/WO2020062608A1/en
Publication of CN109281834A publication Critical patent/CN109281834A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/28—Safety arrangements; Monitoring

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The present invention relates to a kind of positive displacement compressor, cylinder body switching method and air-conditionings.Wherein, positive displacement compressor includes: cylinder body；Rotor is set in the cylinder body, forms air cavity between the inner wall of the cylinder body, the rotor can be moved along the inner wall of the cylinder body；And slide plate, there is the first station and second station；First station, the slide plate are not contacted with the rotor, and the cylinder body is in off working state；Second station, the slide plate are contacted with the rotor, the air cavity are divided into suction chamber and discharge chamber, the cylinder body is in running order；When the slide plate is configured to the positional relationship between the slide plate and the rotor and meets preset condition, converted from the first station to second station.The present invention can reduce slide plate from the first station to when second station conversion, to the stroke of rotor operation, weaken the impact force and noise that the two collision generates, contact in place conducive to primary, reduce the collision deformation of slide plate and rotor.

Description

Positive displacement compressor, cylinder body switching method and air-conditioning
Technical field
The present invention relates to compressor field more particularly to a kind of positive displacement compressors, cylinder body switching method and air-conditioning.
Background technique
In order to solve the industry problems of multi-connected machine underload efficiency difference, develops and Compressor Technology is switched based on size volume Multi-line system.Wherein the switching of the cylinder body of compressor is contact by slide plate with rotor or separates realization, it is seen that pressure The core of contracting machine cylinder body handoff technique is the way of contact control of slide plate and rotor.
In existing control technology, when unit has single cylinder to cut twin-tub demand, then pressure is applied to slide plate immediately, pushed Slide plate is contacted with rotor, this process does not consider the relative position of slide plate and rotor and blindly cuts cylinder.However, in compressor operation In, rotor is in high-speed rotation, and cutting cylinder then and will lead to slide plate and rotor sharp impacts for this blindness causes slide plate and rotor not It can disposably contact in place or the problems such as collision deformation, influence compressor service life.
Summary of the invention
One of purpose of the invention is to propose a kind of positive displacement compressor, cylinder body switching method and air-conditioning, solves slide plate With the collision deformation problem of rotor.
Some embodiments of the present invention provide a kind of positive displacement compressor comprising: cylinder body；Rotor is set to the cylinder body It is interior, air cavity is formed between the inner wall of the cylinder body, the rotor can be moved along the inner wall of the cylinder body；And slide plate, have First station and second station；First station, the slide plate are not contacted with the rotor, and the cylinder body is in off working state； Second station, the slide plate are contacted with the rotor, the air cavity are divided into suction chamber and discharge chamber, the cylinder body is in Working condition；When the slide plate is configured to the positional relationship between the slide plate and the rotor and meets preset condition, by First station is converted to second station.
Optionally, positive displacement compressor further includes detection device, for detecting the position between the rotor and the slide plate Relationship.
Optionally, positive displacement compressor further includes control unit, and described control unit is electrically connected the detection device, for connecing The signal that the detection device is sent is received, and when the positional relationship between the rotor and the slide plate meets preset condition, The rotor is controlled to be converted from the first station to second station.
Optionally, the slide plate is configured to central axes and line OO in the slide plate1Angle in preset range, It is converted from the first station to second station；Wherein, the line OO1Refer to the center of circle O of the cylinder body and the center of circle O of the rotor1 Line.
Optionally, the slide plate is configured to central axes and line OO in the slide plate1Angle when being zero, by first Station is converted to second station；Wherein, the line OO1Refer to the center of circle O of the cylinder body and the center of circle O of the rotor1Company Line.
Optionally, the slide plate is set in the sliding slot on the cylinder body；In the first station, the slide plate and the sliding slot It is opposing stationary；In second station, the rotor is moved along the inner wall of the cylinder body, and the slide plate is back and forth transported in the sliding slot It is dynamic.
Optionally, in the first station, the end that the slide plate is used to contact with the rotor is positioned in the chute.
Optionally, positive displacement compressor includes gas circuit, and the gas circuit is used to provide pressure to the slide plate, in the second work Position, during the rotor is moved along the inner wall of the cylinder body, the slide plate is contacted with the rotor always.
Optionally, the cylinder body includes the first cylinder body and the second cylinder body；The rotor includes the first rotor and the second rotor； The slide plate includes the first slide plate and the second slide plate；The first rotor is set in first cylinder body, and first slide plate is used In with the first rotor cooperating；Second rotor is set in second cylinder body, and second slide plate is used for and institute State the work of the second rotor engagement.
Optionally, the volume of first cylinder body and the volume of second cylinder body are identical or different.
Optionally, the detection device includes encoder.
Some embodiments of the present invention provide a kind of cylinder body switching method of above-mentioned positive displacement compressor, cylinder body by When off working state is converted to working condition, the position of the intracorporal rotor of cylinder is detected, when the positional relationship of rotor and slide plate meets When preset condition, exerts a force to slide plate, contact slide plate with rotor.
Optionally, the preset condition that the positional relationship of the rotor and slide plate meets are as follows: the central axes of slide plate and line OO1 Angle within a preset range, wherein line OO1Refer to the center of circle O of cylinder body and the center of circle O of rotor1Line.
Optionally, the preset condition that the positional relationship of the rotor and slide plate meets are as follows: the central axes of slide plate and line OO1 Angle be zero, wherein line OO1Refer to the center of circle O of cylinder body and the center of circle O of rotor1Line.
Some embodiments of the present invention provide a kind of air-conditioning comprising above-mentioned positive displacement compressor.
Based on the above-mentioned technical proposal, the present invention at least has the advantages that
In some embodiments, when slide plate is configured to the positional relationship between slide plate and rotor and meets preset condition, It is converted from the first station to second station.The opportunity problem of slide plate movement, has provided and has wanted when cutting cylinder when for compression machine-cut cylinder Consider the technical solution of rotor-position, when being converted with reducing slide plate from the first station to second station, to the stroke of rotor operation, Weaken the impact force and noise that the two collision generates, is contacted in place conducive to primary, reduce the collision deformation of slide plate and rotor.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram for the positive displacement compressor that some embodiments of the invention provide；
Fig. 2 is the structure diagram for the cylinder body that some embodiments of the invention provide；
Fig. 3 is the intracorporal rotor motion track schematic diagram of cylinder that some embodiments of the invention provide；
Fig. 4 is the schematic diagram for the positive displacement compressor single cylinder work that some embodiments of the invention provide；
Fig. 5 is the schematic diagram for the positive displacement compressor twin-tub work that some embodiments of the invention provide.
Numbering in the drawing:
1- cylinder body；The first cylinder body of 11-；The second cylinder body of 12-；
2- rotor；21- the first rotor；The second rotor of 22-；
3- slide plate；The first slide plate of 31-；The second slide plate of 32-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, is clearly and completely retouched to the technical solution in embodiment It states.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair Bright embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention The limitation of range.
As shown in Figure 1, the schematic diagram of the positive displacement compressor provided for some embodiments of the invention.
In some embodiments, positive displacement compressor includes cylinder body 1.Cylinder body 1 can be set one, two or two with On.I.e. positive displacement compressor can be multicylinder compressor more than single cylinder compressor, duplex cylinder compressor or twin-tub.Duplex cylinder compressor and Cylinder body 1 in multicylinder compressor can work at the same time or at least one work.By controlling in running order cylinder body 1 number adjusts the volume of positive displacement compressor, realizes transfiguration.
In some embodiments, positive displacement compressor includes rotor 2, and rotor 2 is set in cylinder body 1, and rotor 2 is interior with cylinder body 1 Air cavity is formed between wall.Rotor 2 can be moved along the inner wall of cylinder body 1.Include the case where more than two cylinder bodies 1 in positive displacement compressor Under, rotor 2 is each equipped in each cylinder body 1.Each cylinder body 1 is mutually indepedent.
In some embodiments, positive displacement compressor includes slide plate 3, and slide plate 3 has the first station and second station.First work Position, slide plate 3 is not contacted with rotor 2, at this point, cylinder body 1 is in off working state.Second station, slide plate 3 are contacted with rotor 2, will Air cavity is divided into suction chamber and discharge chamber, at this point, cylinder body 1 is in running order.
When slide plate 3 is configured to the positional relationship between slide plate 3 and rotor 2 and meets preset condition, from the first station to Second station conversion.
The opportunity problem of slide plate movement when the disclosure is for compression machine-cut cylinder, rotor position will be considered by having provided when cutting cylinder Both the technical solution set, when being converted with reducing slide plate 3 from the first station to second station, the stroke run to rotor 2, weaken The impact force generated and noise are collided, is conducive to primary contact in place, reduces the collision deformation of slide plate 3 and rotor 2.
As shown in Fig. 2, forming cavity between rotor 2 and the inner wall of cylinder body 1.When cylinder body 1 works normally, slide plate 3 and rotor 2 Always it is in close contact, the cavity formed between 1 inner wall of cylinder body and rotor 2 is divided into suction chamber and discharge chamber, and rotor 2 moves, cylinder Body 1 is in working, normal suction exhaust.When slide plate 3 is separated with rotor 2, only one cavity in cylinder body 1, no Energy normal suction exhaust, cylinder body 1 are in inoperative operating status.
The switching of the working condition of cylinder body 1 and off working state by the slide plate 3 of control cylinder body 1 and the contact of rotor 2 and Separation is realized.
In some embodiments, positive displacement compressor includes detection device, and detection device is for detecting rotor 2 in cylinder body 1 Position, i.e., detection rotor 2 and slide plate 3 between positional relationship.
In some embodiments, when cylinder body 1 switches from off working state to working condition, rotor is detected by detection device 2 position in cylinder body 1, when the positional relationship between rotor 2 and slide plate 3 meets preset condition, such as: in rotor 2 and slide The distance of piece 3 within a preset range when, exert a force to slide plate 3, contact slide plate 3 with rotor 2, to improve connecing for slide plate 3 and rotor 2 Efficiency is touched, weakens the noise that slide plate 3 and 2 multiple impact of rotor generate during cutting cylinder, while reducing slide plate 3 and contacting with rotor 2 When shock dynamics, improve compressor internal element service life.
In some embodiments, positive displacement compressor includes control unit, and control unit is electrically connected detection device.Control unit Meet preset condition for the position signal for the rotor 2 that receiving detection device is sent, and in the positional relationship of rotor 2 and slide plate 3 When, control rotor 2 is converted from the first station to second station.
The preset condition of the positional relationship of rotor 2 in the disclosure and slide plate 3 can be between rotor 2 and slide plate 3 away from From less than or equal to preset value.Preferably, the preset condition of the positional relationship of rotor 2 and slide plate 3 can be rotor 2 and be used for and slide plate The distance between the end of 3 contacts and the outer rim of slide plate 3 are less than or equal to preset value.
The preset condition of the positional relationship of rotor 2 and slide plate 3 can be central axes and the line OO of slide plate 31Angle exist In preset range.Wherein, line OO1Refer to the center of circle O of cylinder body 1 and the center of circle O of rotor 21Line.
It should be noted that the line OO in the disclosure1With directionality, i.e., from the center of circle O of cylinder body 1 to the circle of rotor 2 Heart O1Direction.
In some embodiments, slide plate 3 is configured to central axes and line OO in slide plate 31Angle in preset range When, it is converted from the first station to second station, wherein line OO1Refer to the center of circle O of cylinder body 1 and the center of circle O of rotor 21Line.
In some embodiments, slide plate 3 is configured to central axes and line OO in slide plate 31Angle when being zero, by One station is converted to second station, wherein line OO1Refer to the center of circle O of cylinder body 1 and the center of circle O of rotor 21Line.
As shown in figure 3, definition: O is the center of circle of cylinder body 1, O1For the center of circle of rotor 2, rotor 2 around cylinder body 1 center of circle O with Angular velocity omega moves, and defines central axes and the center of circle O of the cylinder body 1 and center of circle O of rotor 2 of slide plate 31Line OO1Between folder Angle is θ.
During the cooperating of slide plate 3 and rotor 2, the central axes of slide plate 3 and line OO1Between angle theta include but It is not limited to 0 °, 90 °, 180 ° and 270 °.
Angle theta is with the central axes of slide plate 3 to 2 direction of motion of rotor and line OO1Between angle.θ=0 °, line OO1Refer to To the direction of slide plate 3.θ=180 °, line OO1It is directed toward the opposite direction of slide plate 3.
The existing position cut cylinder technology and do not consider rotor directly applies pressure to slide plate when cutting cylinder demand and pushes cunning Piece is contacted with rotor.Such as when θ=90 °, θ=180 ° or θ=270 °, slide plate top between rotor periphery at a distance from it is larger, it is sliding Piece shift motion is big, and speed when slide plate and rotor being caused to contact increases, and causes slide plate can sharp impacts rotor.
In some embodiments of the present disclosure, when cutting cylinder demand, the position of rotor 2 is detected using the detection device moment, When detecting θ=0 °, release and pressure applied to slide plate 3 simultaneously to the locking of slide plate 3, make one of end of slide plate 3 with The outer rim of rotor 2 contacts, and slide plate 3 is close to always the outer rim of rotor 2 later, and direction is reciprocating along the chute.
, it is understood that the outer rim gap of slide plate 3 and rotor 2 is minimum, i.e., between slide plate 3 and rotor 2 when θ=0 ° Impact severity is most weak.But slide plate 3 could be discharged when not limiting angle, θ as 0 °, can also be released in preset small angular range Put slide plate 3.
In some embodiments, the casing wall of cylinder body 1 is equipped with sliding slot, and slide plate 3 is set to sliding slot.In the first station, slide plate 3 with Sliding slot is opposing stationary；In second station, rotor 2 is moved along the inner wall of cylinder body 1, and slide plate 3 moves back and forth in sliding slot.
In some embodiments, in the first station, the end that slide plate 3 is contacted with rotor 2 is located in sliding slot, to prevent on-slip The movement of the influence rotor 2 of piece 3.
Optionally, in the first station, slide plate 3 is static relative to sliding slot by the limit of the lock pieces lockings such as pin.Slide plate 3, from the first station to when the second work conversion, discharge the locking to slide plate 3, slide plate 3 shifts to rotor 2.
In some embodiments, positive displacement compressor includes gas circuit, and gas circuit is used to provide pressure to slide plate 3, in the second work Position, during rotor 2 is moved along the inner wall of cylinder body 1, slide plate 3 is contacted with rotor 2 always.
In some embodiments, prepare to start to work in cylinder body 1, and detection device detects that rotor 2 reaches 3 place of slide plate In the state of position, slide plate 3 is converted from the first station to second station.
In some embodiments, when cylinder body 1 is in off working state, 3 back of slide plate of cylinder body 1 does not stress.Optionally, Slide plate 3 is blocked by pin.Slide plate 3 is kept completely separate with rotor 1, i.e., cylinder body 1 cannot normally be inhaled, is vented, and is in off working state.
When cylinder body 1 is converted from off working state to working condition, applying pressure to slide plate 3 fast moves slide plate 3, and After 2 making contact of rotor of high-speed rotation, slide plate 3 is close to rotor 2 under the pressure being continuously applied and along sliding vane groove direction It is reciprocating.
In some embodiments, the moment that control slide plate 3 is converted from the first station to second station, rotor 2 and slide plate 3 Distance is recently.
In some embodiments, detection device includes encoder, but not limited to this.
As shown in Figure 4, Figure 5, in some embodiments, positive displacement compressor includes the first cylinder body 11 and the second cylinder body 12；Packet Include the first rotor 21 and the second rotor 22；It further include the first slide plate 31 and the second slide plate 32.The first rotor 21 is set to the first cylinder body In 11, the first slide plate 31 is used for and 21 cooperating of the first rotor；Second rotor 22 is set in the second cylinder body 12, the second slide plate 32 For with 22 cooperating of the second rotor.
First cylinder body 11 and the second cylinder body 12 are mutually indepedent.The volume of the volume of first cylinder body 11 and the second cylinder body 12 can be with It is identical, it can be different.
As shown in Figure 4, Figure 5, the volume of the first cylinder body 11 is different from the volume of the second cylinder body 12, i.e. size volume switching pressure Contracting machine is divided into large and small mutually independent cylinder body inside compressor.
As shown in figure 4, the first cylinder body 11 is in running order, the first slide plate 31 contacts always with the first rotor 21.Second Cylinder body 12 is in off working state, and the second slide plate 32 is separated with the second rotor 22.
During compressor cuts twin-tub by single cylinder, applying pressure to the second slide plate 32 moves the second slide plate 32 quickly It is dynamic, and with after 22 making contact of the second rotor of high-speed rotation, the second slide plate 32 is close to second under the pressure being continuously applied Rotor 22 is simultaneously reciprocating along sliding vane groove direction, completes single cylinder and cuts twin-tub movement, as shown in Figure 5.
Some embodiments provide a kind of cylinder body switching methods of positive displacement compressor, are ready for compression work in cylinder body 1 When making, i.e., when converting from off working state to working condition, the position of the rotor 2 in cylinder body 1 is detected, when rotor 2 and slide plate 3 When positional relationship meets preset condition, exerts a force to slide plate 3, contacts slide plate 3 with rotor 2, and under the working condition of cylinder body 1, Slide plate 3 is contacted with rotor 2 always in 2 motion process of rotor.
Since the technology of positive displacement compressor is newer, due to many factors meeting such as gas surge in compressor operation Generate noise.But it is not found also in the source for the noise that cylinder body 1 is generated from off working state into working condition conversion process, Therefore, the prior art does not consider that rotor-position, directly cuts cylinder when cutting cylinder demand, slide plate and rotor impact force be will cause Greatly, noise is big.
The opportunity problem of applicant's slide plate movement when the disclosure is for compression machine-cut cylinder, proposing will consider to turn when cutting cylinder The technical solution of sub- position weakens the impact force and noise that the two collision generates to reduce the stroke that slide plate 3 is run to rotor 2.
The disclosure releases the locking to slide plate 3 when meeting 3 action moment of slide plate, and dynamic and and rotor is pushed in the compression of slide plate 3 2 contacts, enable cylinder body 1 to work normally.When solution cylinder body 1 is converted from off working state to working condition, slide plate 3 and rotor 2 The problem of sharp impacts deform in place or for a long time cannot disposably be contacted.
In some embodiments, the positional relationship of rotor 2 and slide plate 3 meets the end that preset condition may include slide plate 3 It is zero at a distance from the outer rim of rotor 2；It further include central axes and the line OO of slide plate 31Angle be zero.
In some embodiments, it is moved in rotor 2 along 1 inner wall of cylinder body, in the state that slide plate 3 is contacted with rotor 2, slide plate 3 Make straight reciprocating motion.
Some embodiments provide a kind of air-conditionings comprising above-mentioned positive displacement compressor.
In some embodiments, positive displacement compressor includes the multicylinder compressor of duplex cylinder compressor or twin-tub or more.
In the description of the present invention, it is to be understood that, zero is limited using the words such as " first ", " second ", " third " Component, it is only for convenient for distinguishing to above-mentioned parts, do not have Stated otherwise such as, above-mentioned word contains there is no special Justice, therefore should not be understood as limiting the scope of the invention.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.

Claims (15)

1. a kind of positive displacement compressor characterized by comprising
Cylinder body (1)；
Rotor (2) is set in the cylinder body (1), forms air cavity between the inner wall of the cylinder body (1), the rotor (2) can edge The inner wall of the cylinder body (1) moves；And
Slide plate (3) has the first station and second station；First station, the slide plate (3) do not contact with the rotor (2), institute It states cylinder body (1) and is in off working state；Second station, the slide plate (3) contact with the rotor (2), and the air cavity is drawn It is divided into suction chamber and discharge chamber, the cylinder body (1) is in running order；The slide plate (3) be configured to the slide plate (3) with When positional relationship between the rotor (2) meets preset condition, converted from the first station to second station.
2. positive displacement compressor as described in claim 1, which is characterized in that further include detection device, for detecting the rotor (2) positional relationship between the slide plate (3).
3. positive displacement compressor as claimed in claim 2, which is characterized in that further include control unit, described control unit is electrically connected Connect the detection device, the signal sent for receiving the detection device, and the rotor (2) and the slide plate (3) it Between positional relationship when meeting preset condition, control the rotor (2) and converted from the first station to second station.
4. positive displacement compressor as described in claim 1, which is characterized in that the slide plate (3) is configured in the slide plate (3) Central axes and line OO1Angle in preset range, from the first station to second station convert；Wherein, the line OO1 Refer to the center of circle O of the cylinder body (1) and the center of circle O of the rotor (2)1Line.
5. positive displacement compressor as described in claim 1, which is characterized in that the slide plate (3) is configured in the slide plate (3) Central axes and line OO1Angle when being zero, converted from the first station to second station；Wherein, the line OO1Refer to institute State the center of circle O of cylinder body (1) and the center of circle O of the rotor (2)1Line.
6. positive displacement compressor as described in claim 1, which is characterized in that the slide plate (3) is set to the cunning on the cylinder body (1) In slot；In the first station, the slide plate (3) and the sliding slot are opposing stationary；In second station, the rotor (2) is along institute The inner wall movement of cylinder body (1) is stated, the slide plate (3) moves back and forth in the sliding slot.
7. positive displacement compressor as claimed in claim 6, which is characterized in that in the first station, the slide plate (3) is used for and institute The end for stating rotor (2) contact is positioned in the chute.
8. positive displacement compressor as described in claim 1, which is characterized in that including gas circuit, the gas circuit is used for the slide plate (3) pressure is provided, in second station, the rotor (2) is during the inner wall movement of the cylinder body (1), the slide plate (3) it is contacted always with the rotor (2).
9. positive displacement compressor as described in claim 1, which is characterized in that the cylinder body (1) includes the first cylinder body (11) and the Two cylinder bodies (12)；The rotor (2) includes the first rotor (21) and the second rotor (22)；The slide plate (3) includes the first slide plate (31) and the second slide plate (32)；The first rotor (21) is set in first cylinder body (11), and first slide plate (31) is used In with the first rotor (21) cooperating；Second rotor (22) is set in second cylinder body (12), and described second Slide plate (32) is used for and the second rotor (22) cooperating.
10. positive displacement compressor as claimed in claim 9, which is characterized in that the volume of first cylinder body (11) and described the The volume of two cylinder bodies (12) is identical or different.
11. positive displacement compressor as claimed in claim 2, which is characterized in that the detection device includes encoder.
12. a kind of cylinder body switching method of positive displacement compressor as described in claim 1, which is characterized in that in cylinder body (1) by non- When working condition is converted to working condition, the position of the rotor (2) in detection cylinder body (1), when the position of rotor (2) and slide plate (3) When the relationship of setting meets preset condition, exerts a force to slide plate (3), contact slide plate (3) with rotor (2).
13. the cylinder body switching method of positive displacement compressor as claimed in claim 12, which is characterized in that the rotor (2) and cunning The preset condition that the positional relationship of piece (3) meets are as follows: the central axes of slide plate (3) and line OO1Angle within a preset range, In, line OO1Refer to the center of circle O of cylinder body (1) and the center of circle O of rotor (2)1Line.
14. the switching method of the cylinder body of positive displacement compressor as claimed in claim 12, which is characterized in that the rotor (2) with The preset condition that the positional relationship of slide plate (3) meets are as follows: the central axes of slide plate (3) and line OO1Angle be zero, wherein even Line OO1Refer to the center of circle O of cylinder body (1) and the center of circle O of rotor (2)1Line.
15. a kind of air-conditioning, which is characterized in that including positive displacement compressor as claimed in any one of claims 1 to 11.
CN201811119104.9A 2018-09-25 2018-09-25 Positive displacement compressor, cylinder body switching method and air-conditioning Pending CN109281834A (en)

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CN201811119104.9A CN109281834A (en) 2018-09-25 2018-09-25 Positive displacement compressor, cylinder body switching method and air-conditioning
PCT/CN2018/121189 WO2020062608A1 (en) 2018-09-25 2018-12-14 Variable capacity compressor, cylinder switching method and air conditioner

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4397618A (en) * 1979-11-21 1983-08-09 Bitzer-Kuhlmaschinenbau Gmbh & Co. Kg Rolling piston compressor with locking device for the separating slide
CN101568729A (en) * 2006-12-27 2009-10-28 Lg电子株式会社 Variable capacity rotary compressor
WO2017010294A1 (en) * 2015-07-14 2017-01-19 ダイキン工業株式会社 Air conditioning machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100519312B1 (en) * 2003-06-11 2005-10-07 엘지전자 주식회사 Rotary compressor
BR112013009070A2 (en) * 2010-10-12 2016-07-19 Nopparat Thipchuwong rotary compressor with a refrigerant circulation control unit installed
JP6146516B2 (en) * 2015-07-14 2017-06-14 ダイキン工業株式会社 Air conditioner
CN105485013B (en) * 2016-01-12 2017-04-12 珠海格力节能环保制冷技术研究中心有限公司 Volume changing control mechanism of volume changing compressor and volume changing compressor
CN107228069B (en) * 2017-05-27 2019-05-14 珠海格力电器股份有限公司 Compressor and air conditioner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4397618A (en) * 1979-11-21 1983-08-09 Bitzer-Kuhlmaschinenbau Gmbh & Co. Kg Rolling piston compressor with locking device for the separating slide
CN101568729A (en) * 2006-12-27 2009-10-28 Lg电子株式会社 Variable capacity rotary compressor
WO2017010294A1 (en) * 2015-07-14 2017-01-19 ダイキン工業株式会社 Air conditioning machine

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