阅读说明：本技术 一种空调压缩机 (Air conditioner compressor ) 是由 张海霞 李勇 赵红光 于 2021-08-09 设计创作，主要内容包括：本发明属于压缩机技术领域。本发明公开了一种空调压缩机包括壳体、转子、驱动轴、滑片和转子弹性件；壳体的内部设有工作腔,转子以偏心的方式位于工作腔内,驱动轴与转子连接并驱动转子在工作腔内进行转动；滑片的一端与壳体滑动连接,另一端伸入工作腔内并与转子的外表面保持滑动接触；转子与驱动轴滑动连接,转子能够沿驱动轴的径向相对于驱动轴进行往复移动；转子弹性件沿转子的径向设置在驱动轴和转子之间以驱动转子与工作腔的内表面保持滑动接触；壳体上设有进气口和出气口,转子和滑片将工作腔分割为吸气腔和出气腔,进气口与吸气腔保持连通,出气口与出气腔保持连通。本发明的空调压缩机可以对转子的磨损进行自动补偿,实现持续稳定工作。(The invention belongs to the technical field of compressors. The invention discloses an air conditioner compressor, which comprises a shell, a rotor, a driving shaft, a sliding sheet and a rotor elastic piece, wherein the rotor is arranged on the shell; a working cavity is arranged in the shell, the rotor is eccentrically positioned in the working cavity, and the driving shaft is connected with the rotor and drives the rotor to rotate in the working cavity; one end of the sliding sheet is connected with the shell in a sliding mode, and the other end of the sliding sheet extends into the working cavity and keeps sliding contact with the outer surface of the rotor; the rotor is connected with the driving shaft in a sliding mode and can move in a reciprocating mode relative to the driving shaft along the radial direction of the driving shaft; the rotor elastic member is arranged between the driving shaft and the rotor along the radial direction of the rotor so as to drive the rotor to be kept in sliding contact with the inner surface of the working cavity; the shell is provided with an air inlet and an air outlet, the rotor and the sliding sheet divide the working cavity into an air suction cavity and an air outlet cavity, the air inlet is communicated with the air suction cavity, and the air outlet is communicated with the air outlet cavity. The air conditioner compressor can automatically compensate the abrasion of the rotor, and continuous and stable work is realized.)

1. An air conditioner compressor is characterized by comprising a shell, a rotor, a driving shaft, a sliding sheet and a rotor elastic piece; a working cavity is formed in the shell, the rotor is eccentrically positioned in the working cavity, and the driving shaft is connected with the rotor and can drive the rotor to rotate in the working cavity; one end of the sliding sheet is connected with the shell in a sliding mode, and the other end of the sliding sheet extends into the working cavity and is in sliding contact with the outer surface of the rotor; the rotor is connected with the driving shaft in a sliding mode, and the rotor can move in a reciprocating mode relative to the driving shaft along the radial direction of the driving shaft; the rotor elastic member is arranged between the driving shaft and the rotor along the radial direction of the rotor so as to drive the rotor to be kept in sliding contact with the inner surface of the working cavity; the rotor and the sliding sheet divide the working cavity into an air suction cavity and an air outlet cavity which are mutually independent, the air inlet is communicated with the air suction cavity, and the air outlet is communicated with the air outlet cavity.

2. The air conditioner compressor of claim 1, wherein the air conditioner compressor is further provided with a pressure maintaining passage; one end of the pressure maintaining channel is communicated with the air outlet, and the other end of the pressure maintaining channel extends to the containing cavity where the rotor elastic part is located so as to assist the rotor elastic part to drive the rotor to be kept at a position in sliding contact with the inner surface of the working cavity.

3. The air conditioner compressor of claim 2, wherein the pressure maintaining passage includes a first passage, a second passage, and an annular passage; the annular channel is arranged on the outer circumferential surface of the driving shaft, one end of the first channel is communicated with the air outlet, the other end of the first channel is communicated with the annular channel, one end of the second channel is communicated with the annular channel, and the other end of the second channel is communicated with the cavity where the rotor elastic piece is located.

4. The compressor as claimed in claim 1, wherein the driving shaft is provided with a shaft block in the form of a rectangular parallelepiped, the rotor is provided with a rectangular hole along a radial direction thereof inside, and the rectangular hole penetrates in an axial direction of the rotor; the drive shaft passes through the rectangular hole, and the shaft block and the rectangular hole form a sliding connection along the radial direction of the rotor.

5. The air conditioner compressor as claimed in claim 1, wherein the air conditioner compressor is provided with at least two sliding vanes; the vanes are located between the air inlet and the air outlet and are held in sliding contact with the outer surfaces of the rotors, respectively.

6. The air conditioner compressor as claimed in claim 5, further comprising a sliding sheet elastic member; the sliding piece elastic piece is positioned between the shell and the sliding piece so as to drive the sliding piece to move relative to the shell and keep contact with the outer surface of the rotor.

7. The air conditioner compressor as claimed in any one of claims 1 to 6, wherein the air conditioner compressor is further provided with a pressure relief assembly; the pressure release assembly is connected with the sliding piece and can drive the sliding piece to move to be separated from the contact with the outer surface of the rotor according to the pressure change of the air outlet.

8. The air conditioner compressor as claimed in claim 7, wherein the pressure relief assembly includes a slider, a sliding slot is formed on the housing, and a protrusion is formed on the sliding piece; the sliding groove is formed in the direction of the sliding piece moving to and fro relative to the shell, the protrusion extends into the sliding groove, and the sliding block is located in the sliding groove and can move to and fro along the sliding groove so as to drive the sliding piece to overcome the elastic piece of the sliding piece through the protrusion and move relative to the shell.

9. The air conditioning compressor of claim 8, wherein the pressure relief assembly includes a pressure relief channel, a pressure relief piston, a pressure relief spring, a pressure relief control disc, a pressure relief link, and a pressure relief pendulum; the pressure release piston is connected with the driving shaft in a sliding mode and can perform reciprocating movement along the radial direction of the driving shaft; the pressure relief elastic piece is positioned between the pressure relief piston and the driving shaft so as to drive the pressure relief piston to extend out of the driving shaft; one end of the pressure release passage is communicated with the air outlet, and the other end of the pressure release passage extends to a position between the pressure release piston and the driving shaft so as to drive the pressure release piston to move against the pressure release elastic piece; the pressure release control disc is sleeved on the driving shaft in a sliding manner along the axial direction of the driving shaft, and a positioning groove is formed in the pressure release control disc; one end of the pressure release connecting rod is connected with the pressure release control disc in a sliding mode, and the other end of the pressure release connecting rod is connected with the sliding block so as to drive the sliding block to move back and forth along the sliding groove; the end part of the pressure release pendulum is movably connected with the driving shaft, and the middle position of the pressure release pendulum is movably connected with the control disc so as to drive the control disc to reciprocate along the axial direction of the driving shaft; the pressure relief piston can be selectively coupled to the positioning slot to position the reciprocating movement of the pressure relief control disc relative to the drive shaft.

10. The air conditioning compressor of claim 9, wherein the pressure relief assembly further comprises a return spring, the free end of the pressure relief piston being a ramp; the reset elastic piece is positioned between the shell and the pressure release control disc so as to drive the pressure release control disc to move to the positioning groove to be connected with the pressure release piston, so that the slide block releases the drive of the bulge.

Technical Field

The invention belongs to the technical field of compressors, and particularly relates to an air conditioner compressor.

Background

The compressor is a driven fluid machine for lifting low-pressure gas into high-pressure gas, mainly used for compressing and conveying refrigerant, is a heart of a refrigeration system, and is widely applied to the field of air conditioning equipment.

However, the following problems often occur when the existing compressor is used:

1. the rotor of the compressor is abraded due to long-time work, so that a gap is formed between the rotor and the shell, and the mechanical efficiency and the working effect of the compressor are influenced;

2. when an exhaust passage of the existing compressor is blocked, the internal pressure of the compressor can be rapidly increased, the motor can be possibly burnt, and even more, the shell can be broken and exploded to cause personal safety problems or property loss.

Disclosure of Invention

In order to solve the problems existing in the use process of the existing compressor, the invention provides an air conditioner compressor. The air conditioner compressor comprises a shell, a rotor, a driving shaft, a sliding sheet and a rotor elastic piece; a working cavity is formed in the shell, the rotor is eccentrically positioned in the working cavity, and the driving shaft is connected with the rotor and can drive the rotor to rotate in the working cavity; one end of the sliding sheet is connected with the shell in a sliding mode, and the other end of the sliding sheet extends into the working cavity and is in sliding contact with the outer surface of the rotor; the rotor is connected with the driving shaft in a sliding mode, and the rotor can move in a reciprocating mode relative to the driving shaft along the radial direction of the driving shaft; the rotor elastic member is arranged between the driving shaft and the rotor along the radial direction of the rotor so as to drive the rotor to be kept in sliding contact with the inner surface of the working cavity; the rotor and the sliding sheet divide the working cavity into an air suction cavity and an air outlet cavity which are mutually independent, the air inlet is communicated with the air suction cavity, and the air outlet is communicated with the air outlet cavity.

Preferably, the air conditioner compressor is also provided with a pressure maintaining channel; one end of the pressure maintaining channel is communicated with the air outlet, and the other end of the pressure maintaining channel extends to the containing cavity where the rotor elastic part is located so as to assist the rotor elastic part to drive the rotor to be kept at a position in sliding contact with the inner surface of the working cavity.

Further preferably, the pressure maintaining channel comprises a first channel, a second channel and an annular channel; the annular channel is arranged on the outer circumferential surface of the driving shaft, one end of the first channel is communicated with the air outlet, the other end of the first channel is communicated with the annular channel, one end of the second channel is communicated with the annular channel, and the other end of the second channel is communicated with the cavity where the rotor elastic piece is located.

Preferably, a section of shaft block in a cuboid structure form is arranged on the driving shaft, a rectangular hole along the radial direction of the rotor is formed in the rotor, and the rectangular hole penetrates through the rotor along the axial direction of the rotor; the drive shaft passes through the rectangular hole, and the shaft block and the rectangular hole form a sliding connection along the radial direction of the rotor.

Preferably, the air conditioner compressor is provided with at least two sliding sheets; the vanes are located between the air inlet and the air outlet and are held in sliding contact with the outer surfaces of the rotors, respectively.

Further preferably, the air-conditioning compressor is also provided with a sliding sheet elastic piece; the sliding piece elastic piece is positioned between the shell and the sliding piece so as to drive the sliding piece to move relative to the shell and keep contact with the outer surface of the rotor.

Preferably, the air conditioner compressor is also provided with a pressure relief assembly; the pressure release assembly is connected with the sliding piece and can drive the sliding piece to move to be separated from the contact with the outer surface of the rotor according to the pressure change of the air outlet.

Preferably, the pressure relief assembly comprises a sliding block, the shell is provided with a sliding groove, and the sliding block is provided with a protrusion; the sliding groove is formed in the direction of the sliding piece moving to and fro relative to the shell, the protrusion extends into the sliding groove, and the sliding block is located in the sliding groove and can move to and fro along the sliding groove so as to drive the sliding piece to overcome the elastic piece of the sliding piece through the protrusion and move relative to the shell.

Further preferably, the pressure relief assembly comprises a pressure relief channel, a pressure relief piston, a pressure relief elastic piece, a pressure relief control disc, a pressure relief connecting rod and a pressure relief pendulum; the pressure release piston is connected with the driving shaft in a sliding mode and can perform reciprocating movement along the radial direction of the driving shaft; the pressure relief elastic piece is positioned between the pressure relief piston and the driving shaft so as to drive the pressure relief piston to extend out of the driving shaft; one end of the pressure release passage is communicated with the air outlet, and the other end of the pressure release passage extends to a position between the pressure release piston and the driving shaft so as to drive the pressure release piston to move against the pressure release elastic piece; the pressure release control disc is sleeved on the driving shaft in a sliding manner along the axial direction of the driving shaft, and a positioning groove is formed in the pressure release control disc; one end of the pressure release connecting rod is connected with the pressure release control disc in a sliding mode, and the other end of the pressure release connecting rod is connected with the sliding block so as to drive the sliding block to move back and forth along the sliding groove; the end part of the pressure release pendulum is movably connected with the driving shaft, and the middle position of the pressure release pendulum is movably connected with the control disc so as to drive the control disc to reciprocate along the axial direction of the driving shaft; the pressure relief piston can be selectively coupled to the positioning slot to position the reciprocating movement of the pressure relief control disc relative to the drive shaft.

Further preferably, the pressure release assembly further comprises a reset elastic piece, and the free end of the pressure release piston is an inclined plane; the reset elastic piece is positioned between the shell and the pressure release control disc so as to drive the pressure release control disc to move to the positioning groove to be connected with the pressure release piston, so that the slide block releases the drive of the bulge.

The air conditioner compressor has the following beneficial technical effects:

1. in the invention, the rotor is arranged in the working cavity of the shell in a manner of being capable of performing radial reciprocating sliding relative to the driving shaft, so that the rotor can be pressed against the state of sliding contact with the shell by virtue of the rotor elastic piece, the automatic compensation of a wear gap between the rotor and the shell is achieved, and the normal and continuous operation of the air-conditioning compressor is ensured.

2. In the invention, the slip sheet is designed to be in sliding connection with the shell, so that the slip sheet can move back and forth relative to the shell, and the compensation of the abrasion clearance between the slip sheet and the rotor can be realized under the condition that the slip sheet is in sliding contact with the rotor to divide the working cavity in the shell into the air suction cavity and the air outlet cavity, thereby ensuring the normal continuous operation of the air-conditioning compressor.

3. In the invention, the high-pressure coolant at the air outlet is guided to the position between the rotor and the driving shaft by arranging the pressure maintaining channel, so that the rotor can be maintained in a position state of sliding contact with the shell by the aid of the high-pressure coolant auxiliary rotor elastic piece, and the stability and the reliability of the sliding contact between the rotor and the shell are improved.

4. In the invention, the control on the contact relation between the sliding sheet and the rotor is realized by arranging the pressure release assembly and detecting the pressure of the coolant at the air outlet, so that the continuous rising of the pressure of the coolant at the air outlet caused by the blockage of an exhaust channel is avoided, the automatic stop control on the air-conditioning compressor is realized, and the safe operation of the air-conditioning compressor is ensured.

5. In the invention, the pressure release assembly in the pendulum structure form is adopted, so that the movement control of the pressure release control disc relative to the driving shaft can be realized by utilizing the centrifugal force formed by the pressure release pendulum in the rotating process of the driving shaft, and the contact relation between the slide sheet and the rotor can be controlled by the pressure release connecting rod, the slide block and the slide sheet elastic piece, thereby realizing the automatic shutdown operation of the air-conditioner compressor and achieving the automatic protection effect of the air-conditioner compressor.

Drawings

FIG. 1 is a schematic cross-sectional view of an air conditioner compressor according to the present embodiment;

fig. 2 is a schematic cross-sectional view of the air conditioner compressor of the present embodiment along the direction a-a in fig. 1.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Referring to fig. 1 and 2, the air conditioner compressor of the present embodiment includes a housing 1, a rotor 2, a driving shaft 3, a vane 41, and a rotor elastic member 5. A working chamber is provided in the interior of the housing 1, in which working chamber the rotor 2 is eccentrically located. A drive shaft 3 is rotatably connected to the housing 1, while the drive shaft 3 extends through the rotor 2 and is connected to the rotor 2 to drive the rotor 2 for rotation within the working chamber. One end of the slide 41 is slidably connected to the housing 1 and the other end extends into the working chamber and is in sliding contact with the outer surface of the rotor 2.

The rotor 2 is slidably connected to the drive shaft 3 so that the rotor 2 can reciprocate relative to the drive shaft 3 in the radial direction of the drive shaft 3. The rotor elastic member 5 is a coil spring and is disposed between the drive shaft 3 and the rotor 2 in the radial direction of the rotor 2 to drive the rotor 2 to be held in sliding contact with the inner surface of the working chamber. Meanwhile, the housing 1 is provided with an air inlet 11 and an air outlet 12, and the rotor 2 and the sliding sheet 41 divide the working cavity into an air suction cavity 13 and an air outlet cavity 14 which are independent of each other. The air inlet 11 and the air outlet 12 are respectively positioned at two sides of the sliding sheet 41, and the air inlet 11 is communicated with the air suction cavity 13, and the air outlet 12 is communicated with the air outlet cavity 14.

At the moment, in the process that the driving shaft drives the rotor to rotate in the shell, the rotor elastic piece keeps applying acting force to the rotor so as to enable the rotor to keep in contact with the inner surface of the working cavity in the shell. Therefore, when the rotor works for a long time and is worn, the rotor can drive and compensate the wear clearance between the rotor and the inner surface of the working cavity in the shell under the action of the elastic part of the rotor, so that the rotor can continuously and effectively work, and the normal mechanical efficiency and working effect of the air-conditioning compressor are maintained.

Preferably, a pressure maintaining passage 6 is further provided in the air conditioner compressor of the present embodiment. Wherein the holding pressure passage 6 includes a first passage 61, a second passage 62, and an annular passage 63. The annular passage 63 is in the form of an annular groove formed in the outer circumferential surface of the drive shaft 3. The first passage 61 opens on the housing 1 and has one end in communication with the air outlet 12 and the other end in communication with the annular passage 63. The second passage 62 opens on the drive shaft 3 and has one end in communication with the annular passage 63 and the other end in communication with the chamber in which the rotor elastic member 5 is located.

At this moment, the coolant with higher pressure at the air outlet can be drained to the position between the rotor and the driving shaft by virtue of the pressure maintaining channel, so that the elastic part of the auxiliary rotor further presses the rotor to the inner surface of the working cavity of the shell, and the pressure of the coolant output from the air outlet is increased to form larger driving acting force on the rotor, so that the rotor can be stably pressed to the inner surface of the shell, and the normal work of the air-conditioning compressor is ensured.

In this embodiment, the pressurize passageway adopts the internal passage structural style, constitutes through seting up a plurality of passageways on casing and drive shaft promptly, can optimize whole air condition compressor's structural design like this to be convenient for nimble installation and use. Also, in other embodiments, the pressure maintaining passage may be formed by a combination of an external pipe and an internal passage, depending on the design and the use environment.

In addition, a shaft block 31 in the form of a rectangular parallelepiped is provided on the drive shaft 3 of the present embodiment, and a rectangular hole 21 is provided inside the rotor 2 along the radial direction thereof, and the rectangular hole 21 penetrates in the axial direction of the rotor 2. At this time, the drive shaft 3 passes through the rectangular hole 21, and the shaft block 31 can perform relative reciprocating movement in the rectangular hole 21 in the radial direction of the rotor 2, the rotor elastic member 5 is located in the rectangular hole 21 to be simultaneously in contact with the rotor 2 and the drive shaft 3, while the second passage 62 also extends to be communicated with the rectangular hole 21. Like this, the drive shaft passes through axle piece and rectangular hole and drives the rotor and carry out reciprocating motion, realizes simultaneously between the two along radial relative movement of rotor.

As shown in fig. 2, in the air conditioner compressor of the present embodiment, two sliding pieces 41 and 42 are provided. The vanes 41 and 42 are each located between the air inlet 11 and the air outlet 12, are capable of reciprocating independently with respect to the housing 1, and are held in sliding contact with the outer surface of the rotor 2, respectively, so that by providing two vanes, a redundant design structure is formed.

Like this, just can guarantee to appear irregular wearing and tearing and can't continue to keep laminating sliding contact's time between the surface of the tip of even a gleitbretter and rotor with the help of two independent gleitbretters, another independent gleitbretter also can continue to keep the surface laminating sliding contact with the rotor to promote this air condition compressor to the solution ability of the rotor surface wearing and tearing condition, guarantee this air condition compressor's reliable operation. In other embodiments, the number of the sliding pieces can be adjusted according to different design and use conditions, so that specific design and use requirements are met.

In addition, the air conditioner compressor of this embodiment is further provided with a sliding sheet elastic member 7. The slide elastic member 7 is a coil spring, and is located between the housing 1 and the slide 41 and the slide 42 to respectively drive the slide 41 and the slide 42 to move relative to the housing 1 while being held in contact with the outer surface of the rotor 2.

Like this, utilize gleitbretter elastic component to make gleitbretter and rotor keep sliding contact to can compensate in real time when wearing and tearing appear in the gleitbretter tip, guarantee the stable sliding contact between gleitbretter and the rotor. Similarly, in other embodiments, the design that the sliding sheet is in contact with the outer surface of the rotor may be achieved in other manners, for example, the sliding sheet in a telescopic rod structure is adopted, so that the wear is supplemented by the telescopic function of the sliding sheet, and the stable contact between the sliding sheet and the rotor is ensured.

As shown in fig. 1, a pressure release assembly 8 is further provided in the air conditioner compressor of the present embodiment. The pressure release assembly 8 is connected with the sliding vane 41 and the sliding vane 42, and can drive the sliding vane 41 and the sliding vane 42 to move relative to the shell 1 according to the pressure change of the air outlet 12 until the sliding vane 41 and the sliding vane 42 are separated from the contact with the outer surface of the rotor 2, so that the air suction cavity 13 and the air outlet cavity 14 are communicated, and the air-conditioning compressor is stopped.

In the present embodiment, the pressure release assembly 8 includes a sliding block 81, a sliding slot 15 is provided on the housing 1, and a protrusion 43 is provided on each of the sliding piece 41 and the sliding piece 42. The sliding slot 15 is opened along the direction of the sliding sheet 41 moving to and fro relative to the housing 1, the protrusion 43 extends into the sliding slot 15, and the sliding block 81 is located in the sliding slot 15 and can move to and fro along the sliding slot 15, so that the protrusion 43 drives the sliding sheet 41 and the sliding sheet 42 to overcome the sliding sheet elastic element 7 and move relative to the housing 1 to separate from the contact with the rotor 2.

Therefore, the sliding block moves back and forth in the sliding groove according to the pressure change of the air outlet, so that the driving control of the sliding sheet according to the pressure change of the air outlet can be achieved, and the shutdown control of the air-conditioning compressor is realized.

Further, the pressure relief assembly 8 also includes a pressure relief channel 82, a pressure relief piston 83, a pressure relief spring 84, a pressure relief control dial 85, a pressure relief link 86, and a pressure relief pendulum 87. The pressure release piston 83 is located on the drive shaft 3, is connected with the drive shaft 3 in a sliding manner in the diameter direction of the drive shaft 3, and can perform reciprocating relative movement in the radial direction of the drive shaft 3. The pressure-release elastic member 84 is a coil spring, and is located between the pressure-release piston 83 and the drive shaft 3 to drive the pressure-release piston 83 to protrude out of the drive shaft 3. The pressure release passage 82 is opened on the drive shaft 3, and has one end communicating with the air outlet 12 through the pressure holding passage 6 and the other end extending between the pressure release piston 83 and the drive shaft 3 to drive the pressure release piston 83 to move relative to the drive shaft 3 against the pressure release elastic member 84.

The pressure release control disk 85 is slidably fitted on the drive shaft 3 along the axial direction of the drive shaft 3, and a positioning groove 851 is provided on the pressure release control disk 85. One end of the pressure release connecting rod 86 is slidably connected to the outer circumferential surface of the pressure release control plate 85 through a rotating ring 88, and the other end is movably connected to the sliding block 81 to directly drive the sliding block 81 to reciprocate along the sliding slot 15.

The end of the pressure-releasing pendulum 87 is slidably connected to the drive shaft 3 through a kidney-shaped groove, and the middle position of the pressure-releasing pendulum 87 is movably connected to the pressure-releasing control plate 85, so that the pressure-releasing pendulum 87 can drive the pressure-releasing control plate 85 to reciprocate in the axial direction of the drive shaft 3 by the centrifugal force. Meanwhile, the pressure-release piston 82 can be selectively connected to the positioning groove 851 to position the relative position at which the pressure-release control disk 85 reciprocates relative to the drive shaft 3.

At the moment, when the acting force of the pressure of the air outlet on the pressure release piston is smaller than the acting force of the pressure release elastic piece on the pressure release piston, the pressure release piston extends out and is kept in the positioning groove, so that the position relation between the pressure release rotary disc and the driving shaft is positioned, and the sliding block is moved to the position where the sliding sheet is kept in contact with the outer surface of the rotor under the action of the sliding sheet elastic piece through the pressure release connecting rod, so that the air conditioner compression pump works normally. On the contrary, when the acting force of the pressure of the air outlet on the pressure-releasing piston is larger than the acting force of the pressure-releasing elastic piece on the pressure-releasing piston, the pressure-releasing piston overcomes the action of the pressure-releasing elastic piece and is separated from the connection with the positioning groove, so that the pressure-releasing pendulum bob starts to expand under the action of the centrifugal force formed by the driving of the driving shaft, the pressure-releasing rotary disc is driven to move along the axial direction of the driving shaft, the sliding block is driven to move along the sliding groove through the pressure-releasing connecting rod, the sliding sheet is driven to overcome the sliding sheet elastic piece and is separated from the contact with the rotor, and the air-conditioning compression pump stops working.

Still further, the pressure relief assembly 8 further includes a return spring 89, and the free end of the pressure relief piston 83 is of a ramped configuration. The elastic return element 89 is a coil spring and is sleeved on the driving shaft 3 and located between the housing 1 and the pressure-releasing control disk 85 to drive the pressure-releasing control disk 85 to move to a position where the positioning groove 851 is connected with the pressure-releasing piston 83, and further, the pressure-releasing connecting rod 86 drives the sliding block 81 to move to release the drive of the protrusion 43, i.e., the sliding block 41 and the sliding block 42 are restored to move to the contact position with the rotor 2.

Therefore, when the pressure of the air outlet is reduced and the rotating speed of the driving shaft is reduced, the pressure-releasing pendulum bob is folded under the action of gravity, the pressure-releasing control disc starts to move reversely along the driving shaft to the position where the positioning groove is connected with the pressure-releasing piston under the action of the reset elastic piece, the slide block is driven by the pressure-releasing control disc through the pressure-releasing connecting rod to move, the slide block is moved to the position where the slide block is contacted with the rotor again under the action of the slide piece elastic piece, and the air-conditioning compressor is automatically reset so as to rapidly enter normal operation again.

Referring to fig. 1 and 2, the air conditioner compressor of the present embodiment operates as follows:

when the air conditioner compressor normally works, the sliding piece 41 and the sliding piece 42 are both in an extending state under the action of the sliding piece elastic piece 7 and keep sliding contact with the outer surface of the rotor 2, and simultaneously, the rotor 2 moves to keep sliding contact with the inner surface of the working cavity of the shell 1 relative to the shaft block 31 of the driving shaft 3 under the action of the rotor elastic piece 5. At this time, the driving shaft 3 drives the rotor 2 to perform eccentric synchronous rotation in the working cavity of the housing 1 along the clockwise direction shown in fig. 2 through the shaft block 31, so that the refrigerant enters the air suction cavity 13 with the larger cavity from the air inlet 11, and the air outlet cavity 14 with the smaller cavity outputs the coolant in a high-pressure state through the air outlet 12, thereby realizing continuous output of the coolant.

In this process, the high-pressure coolant at the gas outlet 12 flows into the square hole 21 between the shaft block 31 and the rotor 2 through the pressure holding passage 6 to form an auxiliary force that presses the rotor 2 against the inner surface of the working chamber in the housing 1, thereby assisting the rotor elastic member 5 in maintaining the normal operation of the rotor 2 in the working chamber in the housing 1. Meanwhile, the high-pressure coolant at the air outlet 12 flows to the pressure-releasing piston 83 through the pressure-maintaining channel 6 and the pressure-releasing channel 82, and at this time, the acting force of the coolant pressure at the air outlet 12 on the pressure-releasing piston 83 is smaller than the acting force of the pressure-releasing elastic piece 84 on the pressure-releasing piston 83, so that the pressure-releasing piston 83 is kept in the extending state and is located in the positioning groove 851, the position between the pressure-releasing control disc 85 and the driving shaft 3 is positioned, and the slide block 81 is kept at the position where the slide sheet 41 and the slide sheet 42 are in sliding contact with the rotor 2 under the action of the slide sheet elastic piece 7 through the pressure-releasing connecting rod 86, thereby ensuring that the air-conditioning compressor normally outputs the coolant.

When the air conditioner compressor is operated for a long time and the contact position of the rotor 2 and the shell 1 is abraded, the rotor 2 moves relative to the shaft block 31 under the combined action of the rotor elastic piece 5 and the high-pressure coolant introduced by the pressure maintaining channel 6, so that the gap between the rotor 2 and the inner surface of the working cavity in the shell 1 caused by abrasion is supplemented, the effective sliding contact between the rotor 2 and the working cavity in the shell 1 is ensured, and the normal operation of the air conditioner compressor is ensured.

When the air conditioner compressor runs for a long time and the sliding contact position of the sliding sheet 41 or the sliding sheet 42 and the rotor 2 is abraded, the sliding sheet 41 and the sliding sheet 42 move relative to the shell 1 under the action of the sliding sheet elastic piece 7, so that the gaps between the sliding sheet 41 and the sliding sheet 42 and the rotor 2 are supplemented, the effective sliding contact between the sliding sheet 41 and the sliding sheet 42 and the rotor 2 is maintained, and the normal operation of the air conditioner compressor is ensured. Meanwhile, because the slip sheet 41 and the slip sheet 42 respectively form independent sliding with the shell 1 through the independent slip sheet elastic pieces 7, when the end face of one slip sheet is seriously worn and cannot keep effective sliding contact with the rotor 2, the other slip sheet can not be influenced and can form effective sliding contact with the rotor 2, so that the redundancy effect is achieved, and the normal work of the air conditioner compressor is further ensured.

When the exhaust passage is blocked, that is, the pressure of the coolant output from the air outlet 12 is increased to a certain extent, the pressure can be controlled by the preset pressure of the pressure-releasing elastic member 84, the coolant in the air outlet 12 flows to the pressure-releasing piston 83 through the pressure-maintaining passage 6 and the pressure-releasing passage 82 and drives the pressure-releasing piston 83 to perform a recovery movement relative to the drive shaft 3 against the acting force of the pressure-releasing elastic member 84, and the coolant moves out of the positioning groove 851, so that the positioning between the pressure-releasing control disk 85 and the drive shaft 3 is released. At this time, the pressure-releasing pendulum 87 is driven by the driving shaft 3 to perform an unfolding motion under the centrifugal force, so as to drive the pressure-releasing control disc 85 to move relative to the driving shaft 3 against the action force of the reset elastic member 89, i.e. to move in the right direction shown in fig. 1, further drive the slide block 81 to move along the sliding chute 15 through the pressure-releasing link 86, and the slide block 81 is in contact with the protrusion 43 to drive the slide sheet 41 and the slide sheet 42 to move relative to the housing 1 and to overcome the slide sheet elastic member 7 to be separated from the contact with the rotor 2, so as to directly communicate the air suction cavity 13 with the air outlet cavity 14, so that the air-conditioning compressor stops outputting the coolant, thereby preventing the air-conditioning compressor from continuously operating at high pressure and achieving automatic protection of pressure regulation of the air-conditioning compressor.

When the air conditioner compressor stops operating, the drive shaft 3 stops rotating, and the pressure in the pressure release passage 82 is released. The pressure-releasing pendulum 87 loses centrifugal force and performs recovery motion under the action of gravity, so as to drive the pressure-releasing control disk 85 to move relative to the driving shaft 3, meanwhile, the reset elastic piece 89 drives the pressure-releasing control disk 85 to move relative to the driving shaft 3, so that the pressure-releasing control disk 85 moves along the left direction shown in fig. 1, and further, the pressure-releasing link 86 drives the sliding block 81 to move along the sliding groove 15 in the opposite direction, so that the sliding block 81 loses acting force on the protrusion 43, and the sliding piece 41 and the sliding piece 42 move to the position where sliding contact with the rotor 2 is formed again under the acting force of the sliding piece elastic piece 7. In the process that the pressure-releasing pendulum 87 and the reset elastic piece 89 drive the pressure-releasing control disk 85 to move, the pressure-releasing control disk 85 is in contact with the inclined surface of the free end of the pressure-releasing piston 83, so that the pressure-releasing piston 83 can be automatically driven to overcome the pressure-releasing elastic piece 84 and continuously move to the alignment position of the positioning groove 851 and the pressure-releasing piston 83, further, the pressure-releasing piston 83 is inserted and connected with the positioning groove 851 again under the action of the pressure-releasing elastic piece 84, the pressure-releasing control disk 85 is repositioned at the position shown in fig. 1, the automatic reset operation is completed, and the air conditioner compressor can be directly started for use next time.