CN112963351B - Compressor variable volume structure and compressor - Google Patents
Compressor variable volume structure and compressor Download PDFInfo
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- CN112963351B CN112963351B CN202110218693.1A CN202110218693A CN112963351B CN 112963351 B CN112963351 B CN 112963351B CN 202110218693 A CN202110218693 A CN 202110218693A CN 112963351 B CN112963351 B CN 112963351B
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- 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
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention provides a compressor variable volume structure and a compressor. The compressor variable volume structure includes: the cylinder is provided with an air suction cavity, an exhaust cavity and an air suction port communicated with the air suction cavity; one end of the air suction pipe is connected with the air suction port, and the air suction pipe can be arranged in an on-off manner; the flange is provided with a sliding chute; the sliding block is slidably arranged in the sliding groove and is provided with an airflow channel; when the air suction pipe is in a passage, the sliding block moves to a first position, so that the cylinder end face of the cylinder blocks one end of the air flow channel; when the air suction pipe is disconnected, the sliding block moves to a second position, so that the first end of the air flow channel is communicated with the air exhaust cavity, and the second end of the air flow channel is communicated with the air suction cavity. The variable volume structure of the compressor solves the problem of lower reliability of the compressor caused by the variable volume structure of the compressor in the prior art.
Description
Technical Field
The invention relates to the field of compressors, in particular to a variable volume structure of a compressor and the compressor.
Background
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 aim at the climate change in different seasons, the air conditioner has to have lower refrigerating capacity under the light working condition and larger refrigerating capacity under the heavy working condition, and has wider requirements on the application range of the air conditioning system and higher standards.
Compared with the conventional compressor, the variable-capacity compressor has the advantages of wide capacity range, high seasonal energy efficiency ratio, easiness in oil return, good dehumidification effect, rapider cooling, high reliability, small occupied space, flexibility in application and the like. The problems that the low-frequency energy efficiency of the variable frequency compressor is low and the heating capacity of the compressor is insufficient are effectively solved. Compared with the traditional electric auxiliary heat compressor, the heat pump type electric auxiliary heat compressor is more efficient and energy-saving.
However, the control modes of the variable capacity compressor are different, some of the variable capacity compressors adopt a one-way valve to control whether an air cylinder sucks air or not to control whether the air cylinder works or not, and some of the variable capacity compressors adopt a pin to clamp a sliding vane to control the following performance of the sliding vane so as to achieve the purpose of variable capacity.
Disclosure of Invention
The invention mainly aims to provide a compressor variable volume structure and a compressor, and aims to solve the problem that the compressor has low reliability due to the compressor variable volume structure in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a variable capacity structure of a compressor, including: the cylinder is provided with an air suction cavity, an exhaust cavity and an air suction port communicated with the air suction cavity; one end of the air suction pipe is connected with the air suction port, and the air suction pipe can be arranged in an on-off manner; the flange is provided with a sliding chute; the sliding block is slidably arranged in the sliding groove and is provided with an airflow channel; when the air suction pipe is in a passage, the sliding block moves to a first position, so that the end face of the air cylinder blocks one end of the air flow channel; when the air suction pipe is disconnected, the sliding block moves to a second position, so that the first end of the air flow channel is communicated with the air exhaust cavity, and the second end of the air flow channel is communicated with the air suction cavity.
Further, the cylinder has the gas vent that is linked together with the exhaust chamber, and the spout is linked together through gas vent and exhaust chamber: the flange is provided with a first communicating channel, one end of the first communicating channel is communicated with the sliding chute, and the other end of the first communicating channel is communicated with the air suction cavity; when the sliding block is at the first position, the first end of the airflow channel is positioned at one side of the exhaust port and is abutted against the end face of the cylinder, and the second end of the airflow channel is communicated with the first communicating channel; when the slide block is at the second position, the first end of the air flow channel is communicated with the air outlet, and the second end of the air flow channel is communicated with the first communication channel.
Furthermore, along the radial direction of the flange, the sliding groove is provided with a first groove wall and a second groove wall which are oppositely arranged, and the second groove wall is positioned on one side of the first groove wall, which is far away from the central hole of the flange; the compressor varactor structure still includes: the elastic piece is provided with a first connecting end and a second connecting end which are arranged oppositely, the first connecting end is connected with the sliding block, and the second connecting end is connected with the second groove wall.
Furthermore, a first mounting groove is formed in the second groove wall, the second connecting end is connected with the groove bottom of the first mounting groove, and part of the structure of the elastic piece is located in the first mounting groove.
Furthermore, the cylinder is provided with an air suction channel, an air suction port is formed at one end of the air suction channel, and the other end of the air suction channel is communicated with the air suction cavity; one end of the first communicating channel, which is far away from the sliding groove, is communicated with the air suction cavity through the air suction channel.
Further, the cylinder is provided with a second communicating channel, one end of the second communicating channel is communicated with the air suction channel, and the other end of the second communicating channel extends to the end face of the cylinder to be communicated with the first communicating channel.
Furthermore, the airflow channel comprises a first channel and a second channel communicated with the first channel, the first channel and the second channel are obliquely arranged, the first channel is used for being communicated with the exhaust port, and the second channel is communicated with the first communication channel.
Furthermore, the sliding block is a rectangular block, the rectangular block is provided with a first end face and a second end face which are vertically arranged, the first end face is arranged opposite to the end face of the cylinder, and the second end face is arranged opposite to the second groove wall; one end of the first channel extends to the first end face, and one end of the second channel extends to the second end face.
Further, the compressor variable volume structure further includes: the control valve is arranged on the air suction pipe to control the on-off of the air suction pipe; and the controller is in communication connection with the control valve to control the opening and closing of the control valve.
According to another aspect of the present invention, there is provided a compressor comprising a compressor variable capacity structure, wherein the compressor variable capacity structure is the above compressor variable capacity structure.
The variable volume structure of the compressor comprises an air cylinder, an air suction pipe, a flange and a sliding block, wherein the sliding block is slidably arranged in a sliding groove and is provided with an air flow channel; when the air suction pipe is in a passage, the sliding block moves to a first position, so that the end face of the air cylinder blocks one end of the air flow channel; when the air suction pipe is disconnected, the sliding block moves to the second position, so that the first end of the air flow channel is communicated with the air exhaust cavity, and the second end of the air flow channel is communicated with the air suction cavity. The compressor variable volume structure has the advantages that when the air suction pipe is communicated, the air cylinder normally works and is in a non-variable volume state; when the air suction pipe is disconnected, the air cylinder does not participate in working and is in a variable volume state, so that the variable volume structure of the compressor can control the air suction pipe to cause variable volume and does not directly act on parts in a pump body, and the reliability of the compressor is improved; and, the intercommunication in chamber and the chamber of exhausting of breathing in is realized to the mode that removes through the slider in the spout, with the cavity pressure release, reaches the purpose of varactor work cavity idle running, does not relate to the braking to high-speed operation part, and the reliability is high, convenient operation, and the practicality is high.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows an exploded view of an embodiment of a compressor variable volume structure according to the present invention;
figure 2 shows a cross-sectional view of an embodiment of a compressor positive displacement structure according to the present invention;
figure 3 shows a schematic view of a slider of the variable volume construction of a compressor according to the invention in a first position;
FIG. 4 is an enlarged partial view of a slider of the compressor displacement varying structure according to the present invention in a first position;
figure 5 shows a schematic view of a slider of the compressor displacement varying structure according to the present invention in a second position;
FIG. 6 is an enlarged partial view of the slider of the compressor displacement varying structure according to the present invention in a second position;
fig. 7 shows a schematic structural view of a slider of the variable capacity structure of the compressor according to the present invention;
fig. 8 shows a sectional view of an embodiment of a compressor according to the present invention.
Wherein the figures include the following reference numerals:
10. a cylinder; 11. an air suction port; 12. an end surface of the cylinder; 13. an exhaust port; 14. a suction channel; 15. a second communicating passage; 16. a sound-deadening cavity; 20. an air suction pipe; 30. a flange; 31. a chute; 311. a first mounting groove; 32. a first communicating passage; 40. a slider; 41. an air flow channel; 411. a first channel; 412. a second channel; 42. a first end face; 43. a second end face; 50. an elastic member; 60. a control valve; 70. a crankshaft; 80. sliding blades; 90. a roller; 100. a liquid distributor.
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 should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
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 exemplary 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.
The present invention provides a variable volume structure of a compressor, please refer to fig. 1 to 7, which includes: the air cylinder 10 is provided with an air suction cavity, an air exhaust cavity and an air suction port 11 communicated with the air suction cavity; an air suction pipe 20, one end of the air suction pipe 20 is connected with the air suction port 11, and the air suction pipe 20 can be arranged in an on-off manner; a flange 30, the flange 30 being provided with a runner 31; the sliding block 40, the sliding block 40 is slidably arranged in the chute 31, the sliding block 40 is provided with an air flow channel 41; when the air suction pipe 20 is in a passage, the sliding block 40 moves to a first position, so that the cylinder end surface 12 of the cylinder 10 blocks one end of the air flow channel 41; when the air suction pipe 20 is disconnected, the slider 40 moves to the second position, so that the first end of the air flow channel 41 communicates with the air discharge chamber and the second end of the air flow channel 41 communicates with the air suction chamber.
The compressor variable volume structure comprises a cylinder 10, an air suction pipe 20, a flange 30 and a sliding block 40, wherein the sliding block 40 is slidably arranged in a sliding groove 31, and the sliding block 40 is provided with an air flow channel 41; when the air suction pipe 20 is in a passage way, the sliding block 40 moves to a first position, so that the cylinder end surface 12 of the cylinder 10 blocks one end of the air flow channel 41; when the air suction pipe 20 is disconnected, the slider 40 moves to the second position so that the first end of the air flow channel 41 communicates with the air discharge chamber and the second end of the air flow channel 41 communicates with the air suction chamber. The compressor variable volume structure is characterized in that when the air suction pipe 20 is communicated, the air cylinder normally works and is in a non-variable volume state; when the air suction pipe 20 is disconnected, the air cylinder does not participate in working and is in a variable volume state, so that the variable volume structure of the compressor can control the air suction pipe 20 to cause variable volume and does not directly act on parts in a pump body, and the reliability of the compressor is improved; and, the intercommunication in chamber and the chamber of exhausting of breathing in is realized through the mode that slider 40 removed in spout 31, with the cavity pressure release, reaches the purpose of varactor work cavity idle running, does not relate to the part braking of high-speed operation, and the reliability is high, convenient operation, and the practicality is high.
In the present embodiment, the cylinder 10 has an exhaust port 13 communicating with the exhaust chamber, and the chute 31 communicates with the exhaust chamber through the exhaust port 13: the flange 30 is provided with a first communicating channel 32, one end of the first communicating channel 32 is communicated with the chute 31, and the other end of the first communicating channel 32 is communicated with the air suction cavity; when the slider 40 is at the first position, the first end of the airflow channel 41 is located at one side of the exhaust port 13 and abuts against the cylinder end surface 12, and the second end of the airflow channel 41 is communicated with the first communication channel 32; when the slider 40 is in the second position, the first end of the air flow passage 41 communicates with the exhaust port 13, and the second end of the air flow passage 41 communicates with the first communicating passage 32. This arrangement achieves that different communication states of the air flow path 41 can be obtained when the slider 40 is in the first position and the second position.
In the present embodiment, in the radial direction of the flange 30, the sliding groove 31 has a first groove wall and a second groove wall which are oppositely arranged, and the second groove wall is located on one side of the first groove wall far away from the central hole of the flange 30; the compressor varactor structure still includes: the elastic member 50, the elastic member 50 has a first connecting end and a second connecting end which are oppositely arranged, the first connecting end is connected with the sliding block 40, and the second connecting end is connected with the second groove wall. The elastic piece 50 is compressed by gas force to block the airflow channel, and the airflow channel is opened by spring force reset, so that the air suction and the air exhaust are communicated, the braking of high-speed running parts is not involved, and the reliability is high.
Specifically, the elastic member 50 is a spring.
In this embodiment, the second groove wall is provided with a first mounting groove 311, the second connecting end is connected with the groove bottom of the first mounting groove 311, and part of the structure of the elastic element 50 is located in the first mounting groove 311. Such an arrangement enables a secure mounting of the resilient member 50.
In the present embodiment, the cylinder 10 has an air suction passage 14, one end of the air suction passage 14 forms an air suction port 11, and the other end of the air suction passage 14 communicates with an air suction chamber; the end of the first communicating channel 32 remote from the chute 31 communicates with the suction chamber through the suction channel 14. Such an arrangement provides communication between the suction and discharge chambers.
In the present embodiment, the cylinder 10 is provided with the second communication passage 15, one end of the second communication passage 15 communicates with the intake passage 14, and the other end of the second communication passage 15 extends to the cylinder end face 12 to communicate with the first communication passage 32. This arrangement achieves communication of the suction passage 14 with the first communication passage 32.
Specifically, as shown in fig. 2, the cylinder 10 is provided with a sound-deadening chamber 16, the sound-deadening chamber 16 is communicated with the exhaust port 13, and a first end of the gas flow passage 41 is used for being communicated with the sound-deadening chamber 16; when the slide block 40 is at the first position, the slide block 40 is positioned at one side of the silencing cavity 16 far away from the air outlet 13; when slider 40 is in the second position, the first end of air flow passage 41 of slider 40 communicates with sound-deadening chamber 16. Such an arrangement enables the compressor variable volume structure to be switched between two states, variable volume and non-variable volume.
Specifically, a first end of the air flow passage 41 communicates with the exhaust port 13 through the muffling chamber 16.
In the present embodiment, the air flow path 41 includes a first path 411 and a second path 412 communicating with the first path 411, the first path 411 and the second path 412 are disposed obliquely, the first path 411 is used to communicate with the exhaust port 13, and the second path 412 communicates with the first communication path 32. This arrangement allows the air flow path 41 to communicate with and block off the air discharge chamber and the air suction chamber.
In this embodiment, the sliding block 40 is a rectangular block, the rectangular block has a first end surface 42 and a second end surface 43 which are vertically arranged, the first end surface 42 is arranged opposite to the cylinder end surface 12, and the second end surface 43 is arranged opposite to the second groove wall; one end of the first channel 411 extends to the first end face 42, and one end of the second channel 412 extends to the second end face 43. The arrangement facilitates the movement of the slider 40 between the first position and the second position, and ensures that the first end of the first channel 411 is blocked in the first position, thereby ensuring high reliability.
In this embodiment, the compressor variable capacity structure further includes: a control valve 60 disposed on the air suction pipe 20 to control the on/off of the air suction pipe 20; and the controller is in communication connection with the control valve 60 to control the opening and closing of the control valve 60. The variable volume is caused by controlling the change of the air pressure in the air suction pipe, and the variable volume does not directly act on parts inside the pump body, so that the reliability of the compressor is improved.
In specific implementation, fig. 8 shows a control valve 60 inside the liquid distributor 100 of the compressor, and the control valve 60 switches on and off the suction pipe 20 to cause the air pressure inside the pipe to change; the control valve 60 is connected to a terminal on the outer wall of the dispenser 100, and is connected to a controller through the terminal to control the opening and closing of the air suction pipe.
In this embodiment, the variable volume structure of the compressor further includes a crankshaft 70, a sliding vane 80, and a roller 90, wherein the roller 90, the flange 30, and the cylinder 10 are all sleeved on the crankshaft 70; the sliding vane 80 is inserted into the cylinder 10, the sliding vane 80 is disposed between both ends of the first communicating path 32, and the suction passage 14 and the sliding groove 31 are disposed at opposite sides of the sliding vane 80.
In specific implementation, fig. 3 and 4 show a non-volume-variable state, the interior of the compressor cylinder is normally sucked and exhausted, the sliding block 40 moves towards the second groove wall under the driving of the gas force, the spring (i.e. the elastic element 50) is in a compressed state, and the first end of the gas flow channel 41 of the sliding block 40 is blocked; fig. 5 and 6 are the varactor state, close control valve 60 for the varactor cylinder belongs to the evacuation state, because the varactor cylinder belongs to the evacuation state this moment, slider 40 both ends gas power is 0, and the spring resets, and slider 40 moves to first cell wall under the effect of spring, and the air current channel 41 of slider 40 realizes the intercommunication between gas vent 13 and the suction channel 14, and the suction chamber and the exhaust chamber intercommunication of the pump body promptly accomplish compressor cavity pressure release varactor. Because the working positions of the sliding block 40 and the spring are changed along with the capacity change requirement of the system, and high-speed reciprocating motion is not involved, the requirement on the processing technology of the capacity change part is low, and the service life of the capacity change control is greatly prolonged.
During specific implementation, the design assembly mode of the novel double-cylinder compressor is very simple, the liquid distributor is independently controlled, the pressure of the variable-volume air suction cavity of the liquid distributor is controlled through the electric control valve, the sliding block groove and the spring hole are formed in the noise elimination cavity of the flange, the sliding block spring is assembled, and the rest is assembled in a centering mode according to the normal double-cylinder compressor.
The invention further provides a compressor, please refer to fig. 8, which includes a variable volume structure of the compressor, wherein the variable volume structure of the compressor is the variable volume structure of the compressor in the above embodiment.
In specific implementation, during operation: when the air conditioner needs large cooling capacity, the system controls the control valve in the liquid separator to be opened, the air suction port of the air suction pipe communicated with the air cylinder is normal, air pressure in the air cylinder acts on two end faces of the sliding block to form air force, the air force is larger than spring force, the sliding block is pushed to the first position, the spring is located at the compression position, and an air flow channel of the sliding block is blocked. The compressor operates normally with two cylinders. When the normal operating of air conditioner needs to diminish the cold volume, the terminal control through the system connection knockout outer wall needs the cylinder body breathing pipe of bring to rest, when closing this breathing pipe, the varactor work cavity slowly reaches the evacuation state, the gaseous power that the slider receives reduces, when the spring force is greater than gaseous power, the slider moves to the second position to the cylinder inboard under the spring force drives, the air current passageway intercommunication of slider is breathed in chamber and exhaust chamber, no longer form pressure differential in this cylinder cavity, the exhaust of varactor cavity is closed, reach the varactor effect, the compressor is equivalent to single cylinder compressor this moment.
The application solves the following technical problems: the internal elements of the pump body are not directly controlled to control the cylinder to work, so that the reliability of the compressor and the controller is improved; the problems of complex structure and complex assembly of the variable capacitance component are solved; the problems of more matched parts and high noise of the variable volume part are solved; the variable-capacity component is controlled by utilizing the mode that the compressor is communicated with the compressor to suck and exhaust gas, the pump body is effectively unloaded, the mechanical efficiency is improved, and the control logic is simple and easy to realize.
The beneficial effect of this application: the variable-capacity component is controlled outside the cylinder body, so that the reliability of the compressor and the controller is higher; the variable volume component is communicated with air suction and exhaust through spring reset, and the reliability is high; the air suction pipe in the liquid separator is directly controlled to control the variable volume, and the control is simple and easy to realize; the enthalpy-increasing control component is controlled without specially opening air holes on parts and adding a liquid distributor connecting system pipeline, so that the cost is greatly reduced.
The variable-capacity compressor is wide in capacity range, the problems that the low-frequency energy efficiency of the variable-frequency compressor is low and the heating capacity of the compressor is insufficient are effectively solved, the control modes of the variable capacity of the compressor are different, some air cylinders are controlled to suck air or not by adopting a check valve to control the air cylinders to work or not, the following performance of the sliding vanes is controlled to achieve the purpose of variable capacity in a mode of clamping the sliding vanes by adopting pins, and the reliability of the compressor is greatly influenced due to the fact that the sliding vanes are stopped in a high-speed motion state. This application is through the mode in intercommunication suction chamber and exhaust chamber, with the cavity pressure release, reaches the idle purpose of varactor working chamber body, convenient operation, the practicality is high.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the variable volume structure of the compressor comprises a cylinder 10, an air suction pipe 20, a flange 30 and a sliding block 40, wherein the sliding block 40 is slidably arranged in a sliding groove 31, and the sliding block 40 is provided with an air flow channel 41; when the air suction pipe 20 is in a passage way, the sliding block 40 moves to a first position, so that the cylinder end surface 12 of the cylinder 10 blocks one end of the air flow channel 41; when the air suction pipe 20 is disconnected, the slider 40 moves to the second position so that the first end of the air flow channel 41 communicates with the air discharge chamber and the second end of the air flow channel 41 communicates with the air suction chamber. When the air suction pipe 20 is communicated, the air cylinder of the variable-capacity structure of the compressor normally works and is in a non-variable-capacity state; when the air suction pipe 20 is disconnected, the air cylinder does not participate in working and is in a variable volume state, so that the variable volume structure of the compressor can control the air suction pipe 20 to cause variable volume and does not directly act on parts in a pump body, and the reliability of the compressor is improved; and, the intercommunication in chamber and the chamber of exhausting of breathing in is realized through the mode that slider 40 removed in spout 31, with the cavity pressure release, reaches the purpose of varactor work cavity idle running, does not relate to the part braking of high-speed operation, and the reliability is high, convenient operation, and the practicality is high.
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 may be interchanged under appropriate circumstances such that, for example, embodiments of the application described herein may be implemented in sequences other than those illustrated or described herein. Moreover, 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.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown 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 terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
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 (10)
1. A variable volume construction for a compressor, comprising:
the air cylinder (10), the said air cylinder (10) has suction chamber, exhaust chamber and air suction inlet (11) communicated with said suction chamber;
the air suction pipe (20), one end of the air suction pipe (20) is connected with the air suction port (11), and the air suction pipe (20) can be arranged in an on-off manner;
a flange (30), the flange (30) being provided with a runner (31);
the sliding block (40) is slidably arranged in the sliding groove (31), and the sliding block (40) is provided with an air flow channel (41); when the air suction pipe (20) is in a passage, the sliding block (40) moves to a first position, so that the cylinder end surface (12) of the cylinder (10) blocks one end of the air flow channel (41); when the air suction pipe (20) is disconnected, the sliding block (40) moves to a second position, so that the first end of the air flow channel (41) is communicated with the air exhaust cavity, and the second end of the air flow channel (41) is communicated with the air suction cavity.
2. Compressor variable volume structure according to claim 1, characterized in that the cylinder (10) has a discharge opening (13) communicating with the discharge chamber, the chute (31) communicating with the discharge chamber through the discharge opening (13): the flange (30) is provided with a first communicating channel (32), one end of the first communicating channel (32) is communicated with the sliding chute (31), and the other end of the first communicating channel (32) is communicated with the air suction cavity;
when the sliding block (40) is located at the first position, the first end of the airflow channel (41) is located on one side of the exhaust port (13) and abuts against the cylinder end face (12), and the second end of the airflow channel (41) is communicated with the first communication channel (32);
when the sliding block (40) is at the second position, the first end of the air flow channel (41) is communicated with the exhaust port (13), and the second end of the air flow channel (41) is communicated with the first communication channel (32).
3. Compressor variable-volume structure according to claim 2, characterized in that in the radial direction of the flange (30) the slide groove (31) has a first and a second oppositely arranged groove wall, the second groove wall being located on the side of the first groove wall facing away from the central aperture of the flange (30); the compressor variable volume structure further comprises:
the elastic piece (50) is provided with a first connecting end and a second connecting end which are oppositely arranged, the first connecting end is connected with the sliding block (40), and the second connecting end is connected with the second groove wall.
4. The compressor varactor structure of claim 3, characterized in that the second slot wall is provided with a first mounting slot (311), the second connection end is connected with the bottom of the first mounting slot (311), and a part of the structure of the elastic member (50) is located in the first mounting slot (311).
5. Compressor variable volume structure according to claim 2, characterized in that the cylinder (10) has a suction channel (14), one end of the suction channel (14) forming the suction port (11), the other end of the suction channel (14) communicating with the suction chamber;
one end of the first communication channel (32) far away from the sliding chute (31) is communicated with the air suction cavity through the air suction channel (14).
6. The compressor displacement-variable structure according to claim 5, wherein the cylinder (10) is provided with a second communication passage (15), one end of the second communication passage (15) communicating with the suction passage (14), and the other end of the second communication passage (15) extending to the cylinder end surface (12) to communicate with the first communication passage (32).
7. The compressor variable capacity structure according to claim 3, wherein the gas flow passage (41) includes a first passage (411) and a second passage (412) communicating with the first passage (411), the first passage (411) and the second passage (412) being obliquely arranged, the first passage (411) being adapted to communicate with the discharge port (13), the second passage (412) being in communication with the first communication passage (32).
8. Compressor varactor structure according to claim 7, characterized in that the slider (40) is a rectangular block having a first end face (42) and a second end face (43) arranged perpendicularly, the first end face (42) being arranged opposite to the cylinder end face (12) and the second end face (43) being arranged opposite to the second groove wall; one end of the first channel (411) extends to the first end face (42) and one end of the second channel (412) extends to the second end face (43).
9. The compressor varactor structure of any one of claims 1 through 6, further comprising:
a control valve (60) which is arranged on the air suction pipe (20) and is used for controlling the on-off of the air suction pipe (20);
and the controller is in communication connection with the control valve (60) to control the opening and closing of the control valve (60).
10. A compressor comprising a compressor variable capacity structure, wherein the compressor variable capacity structure is the compressor variable capacity structure of any one of claims 1 to 9.
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