An oil separator for an automotive air conditioner

Abstract

The present invention relates to the technical field of oil separators, and discloses an oil separator for an automotive air conditioner, including a housing. A distribution chamber is fixedly installed at the top of the housing, and a filter bag is installed at the bottom of the distribution chamber. It further includes: a rotating unit, the rotating unit includes an inner core, a plurality of air grooves are formed on the side surface of the inner core, and a sealing plate is slidably installed inside the air grooves; a cleaning unit, the cleaning unit includes a lifting mechanism, and an extrusion mechanism is arranged on one side of the lifting mechanism, the extrusion mechanism includes a pressure roller; a transmission unit, the transmission unit includes a steering adjustment mechanism, the steering adjustment mechanism includes a rotating column, and a transmission mechanism is arranged at the bottom of the rotating column. The present invention squeezes and cleans the residual lubricating oil by arranging a pressure roller at the filter bag, so as to extend the service life of the filter bag. At the same time, the pressure rollers perform alternating extrusion to maintain the continuous progress of the working state.

Description

Technical Field

[0001] The present invention belongs to the technical field of oil separators, and more specifically, relates to an oil separator for automotive air conditioners. Background Art

[0002] An oil separator is used to separate lubricating oil from the high-pressure steam discharged by a refrigeration compressor to ensure the safe and efficient operation of the device. The efficiency of the oil separator has always been a key factor affecting the overall performance of many devices. If the efficiency of the oil separator is low, it will lead to too much oil entering the heat exchanger, forming an oil film inside the heat exchanger, increasing the heat transfer resistance, and affecting the heat transfer effect; it will also lead to too little oil returning to the compressor, increasing the internal wear of the compressor, and affecting the life and reliability of the compressor. Therefore, there is an urgent need to improve the efficiency of the oil separator.

[0003] Chinese Patent with the authorization announcement number CN102914105B discloses an oil separator that removes components such as filter screen partitions, reduces the pressure loss at the inlet and outlet, and at the same time reduces the volume of the oil-gas separator, which is beneficial to the miniaturization design of the air-conditioning system; the volume of the oil separator is reduced, and it can be directly connected in series to the compressor exhaust pipe through the inlet and outlet ports, which can play a role in noise reduction; the oil droplets are collected through the liquid collection net, improving the efficiency of oil separation, reducing the amount of oil entering the heat exchanger, and improving the heat transfer effect; the oil return of the compressor is timely and sufficient, ensuring the reliable and stable operation of the compressor.

[0004] However, this technical solution still has at least the following defects: the oil separator in the above solution cannot clean the internal filter screen. After long-term use, the lubricating oil will adhere to the filter screen, causing oil stains and reducing the service life of the filter screen. In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides an oil separator for automotive air conditioners. By setting pressure rollers at the filter bag to squeeze and clean the residual lubricating oil, the service life of the filter bag is extended. At the same time, the pressure rollers perform alternating squeezing to maintain the continuous progress of the working state; through the setting of structures such as the inner core for driving, when air enters from the air inlet, the air flow enters the air groove, causing the inner core to rotate, and then driving the cleaning unit to work, without the need for additional power, and only relying on the high-pressure gas of the compressor can it operate.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] An oil separator for automotive air conditioners includes a housing, a distribution chamber is fixedly installed at the top of the housing, a filter bag is installed at the bottom of the distribution chamber, and further includes:

[0008] A rotating unit, the rotating unit includes a core, a plurality of air grooves are formed on the side surface of the core, a sealing plate is slidably installed inside the air grooves, convex columns are installed at both ends of the sealing plate, cover plates are arranged at the upper and lower ends of the core, second chutes are formed on the cover plates, and the convex columns are slidably connected in the second chutes;

[0009] A cleaning unit, the cleaning unit includes a lifting mechanism, an extrusion mechanism is arranged on one side of the lifting mechanism, the extrusion mechanism includes a pressure roller, and the lifting mechanism drives the pressure roller to move up and down to extrude the filter bag;

[0010] A transmission unit, the transmission unit includes a steering adjustment mechanism, the steering adjustment mechanism includes a rotating column, a clamping block is movably inserted at the bottom of the rotating column, a first toothed ring and a second toothed ring are arranged at the bottom of the rotating column, tooth grooves are formed inside both the first toothed ring and the second toothed ring, a transmission mechanism is arranged at the bottom of the rotating column, and the transmission unit converts the directional rotation of the rotating unit into the lifting movement of the lifting mechanism through the steering adjustment mechanism and the transmission mechanism.

[0011] As a preferred embodiment of the present invention, the rotating unit further includes a sealing ring, the cover plates are fixedly connected to both ends of the sealing ring, the core is movably connected inside the sealing ring, and the edge position of the core is sealedly connected to the inner wall of the sealing ring. The rotating unit further includes a limiting mechanism, the limiting mechanism includes a backing plate, the backing plate is fixedly connected to the upper and lower ends of the core, a first chute is formed on the backing plate, and the convex columns are slidably installed in the first chute.

[0012] As a preferred embodiment of the present invention, the cleaning unit further includes a mounting plate, the lifting mechanism is located on one side of the mounting plate, the lifting mechanism includes a lead screw, the two ends of the lead screw are rotatably installed on mounting frames, telescopic rods are installed between the mounting frames and the mounting plate, a first spring is movably sleeved on the telescopic rods, and a matching sleeve is movably sleeved on the lead screw;

[0013] The extrusion mechanism further includes a support frame, the matching sleeve is fixedly installed on the support frame, the pressure roller is rotatably connected to the support frame, a positioning rod is installed at one end of the mounting frame, a positioning cylinder is fixedly installed on the support frame, and the support frame and the positioning cylinder are movably sleeved on the positioning rod.

[0014] As a preferred embodiment of the present invention, the cleaning unit further includes a dislocation moving mechanism, the dislocation moving mechanism includes a mounting shaft, the mounting shaft is fixedly installed on the support frame, a rotating plate is rotatably installed at one end of the mounting shaft, a torsion spring is installed between the rotating plate and the mounting shaft, a limiting block is fixedly installed on one side of the support frame, the limiting block is adapted to the rotating plate, and the dislocation moving mechanism further includes a fixing plate, a guiding plate is fixedly installed on one side of the fixing plate, and the guiding plate is adapted to the rotating plate.

[0015] As a preferred embodiment of the present invention, a first connecting plate is rotatably installed on the side of the rotating column. A counterweight block is fixedly installed at one end of the first connecting plate. A second connecting plate is rotatably installed on one side of the first connecting plate. A pressing block is rotatably installed at one end of the second connecting plate. A push rod is rotatably installed at the bottom of the pressing block. The clamping block is rotatably connected to the push rod.

[0016] As a preferred embodiment of the present invention, the first gear ring and the second gear ring are connected by a bearing, and both the first gear ring and the second gear ring are movably sleeved on the outer bottom of the rotating column. A first gear and a second gear are respectively meshed and connected to one side of the first gear ring and the second gear ring. The first gear and the second gear are meshed with each other. A connecting sleeve is fixedly installed at the bottom of the second gear ring. A third gear is installed at the bottom of the connecting sleeve. The third gear is rotatably installed on the top of the distribution cavity.

[0017] As a preferred embodiment of the present invention, the transmission mechanism includes a fixed frame. The fixed frame is fixedly installed on the top of the distribution cavity. A fourth gear is rotatably installed on the fixed frame. A rotating shaft is installed at the bottom of the fourth gear. A first bevel gear is installed at the bottom of the rotating shaft. A second bevel gear is meshed and connected to the side of the first bevel gear. A transmission shaft is fixedly installed at one end of the second bevel gear. A connecting frame is movably sleeved between the transmission shaft and the rotating shaft.

[0018] As a preferred embodiment of the present invention, the transmission mechanism further includes a third bevel gear and a fourth bevel gear. The third bevel gear and the fourth bevel gear are meshed with each other. The third bevel gear is movably inserted on the transmission shaft. A mounting tube is rotatably installed at one end of the third bevel gear. The mounting tube is movably sleeved on the transmission shaft, and the mounting tube is rotatably connected to the fourth bevel gear. A synchronous wheel is installed at the end of the lead screw, and a synchronous belt is installed between adjacent synchronous wheels. The synchronous wheel close to the fourth bevel gear is fixedly installed at the bottom of the fourth bevel gear.

[0019] As a preferred embodiment of the present invention, the transmission unit further includes a triggering mechanism. The triggering mechanism includes a sleeve. A plug shaft is movably inserted at the bottom of the sleeve. The plug shaft is fixedly connected to the rotating column. A mounting ring is fixedly installed on the sleeve. A fixing ring is fixedly installed on the plug shaft. A second spring is movably sleeved between the plug shaft and the outer side of the sleeve. The second spring is fixedly connected to the fixing ring and the mounting ring. An electromagnet is fixedly installed at the bottom of the lower cover plate. The electromagnet is aligned with the fixing ring. Sensors are installed at both ends of one of the mounting plates. The sensors are electrically connected to the electromagnet.

[0020] As a preferred embodiment of the present invention, an air inlet is installed on one side of the sealing ring, and a transfer chamber is installed on the other side. A conduit is installed at one end of the transfer chamber, and the conduit communicates with the distribution chamber. A protective shell is installed between the outer shell and the cover plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present invention, a pressure roller is arranged at the filter bag to squeeze and clean the residual lubricating oil, so as to extend the service life of the filter bag. At the same time, the pressure rollers perform alternating squeezing to maintain the continuous progress of the working state.

[0023] In the present invention, structures such as an inner core are arranged for driving. When air enters through the air inlet, the air flow enters the air groove, causing the inner core to rotate, and then driving the cleaning unit to work. No additional power is required, and it can operate only relying on the high-pressure gas of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an oil separator for an automotive air conditioner according to the present invention;

[0025] Figure 2 It is a schematic diagram of the structure at the inner core of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure at the backing plate of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure at the second chute of the present invention;

[0028] Figure 5 It is a schematic diagram of the internal structure of the outer shell of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the cleaning unit of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure at the lead screw of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure at the first spring of the present invention;

[0032] Figure 9 It is a schematic diagram of the structure at the rotating plate of the present invention;

[0033] Figure 10 It is a schematic diagram of the internal structure of the protective shell of the present invention;

[0034] Figure 11 It is a schematic diagram of the structure at the rotating column of the present invention;

[0035] Figure 12 It is a schematic diagram of the structure at the first bevel gear of the present invention;

[0036] Figure 13 Structural schematic diagram of the connecting sleeve of the present invention;

[0037] Figure 14 Internal structural schematic diagram of the rotating column of the present invention;

[0038] Figure 15 Structural schematic diagram of the second spring of the present invention.

[0039] Explanation of reference numerals in the drawings:

[0040] 100, sealing ring; 101, backing plate; 102, inner core; 103, air groove; 104, sealing plate; 105, convex column; 106, first sliding groove; 107, cover plate; 108, second sliding groove; 109, air inlet; 110, transfer cavity; 111, conduit; 112, distribution cavity; 113, filter bag; 114, outer shell;

[0041] 200, mounting plate; 201, telescopic rod; 202, first spring; 203, mounting bracket; 204, positioning rod; 205, support frame; 206, positioning cylinder; 207, pressure roller; 208, mounting shaft; 209, torsion spring; 210, rotating plate; 211, limiting block; 212, fixing plate; 213, guiding plate; 214, matching sleeve; 215, lead screw; 216, sensor;

[0042] 300, sleeve; 301, insertion shaft; 302, rotating column; 303, first connecting plate; 304, counterweight; 305, second connecting plate; 306, pressing block; 307, push rod; 308, clamping block; 309, first toothed ring; 310, second toothed ring; 311, tooth groove; 312, first gear; 313, second gear; 314, connecting sleeve; 315, third gear; 316, fixing frame; 317, fourth gear; 318, first bevel gear; 319, second bevel gear; 320, connecting frame; 321, transmission shaft; 322, mounting pipe; 323, third bevel gear; 324, fourth bevel gear; 325, synchronous pulley; 326, synchronous belt; 327, electromagnet; 328, fixing ring; 329, second spring; 330, mounting ring; 331, protective shell. Detailed implementation manners

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0044] Embodiment 1

[0045] As Figures 1 to 15As shown, an oil separator for an automotive air conditioner includes a housing 114. A distribution chamber 112 is fixedly installed at the top of the housing 114. A filter bag 113 is installed at the bottom of the distribution chamber 112. It further includes:

[0046] A rotating unit, which includes an inner core 102. A plurality of air grooves 103 are formed on the side of the inner core 102. A sealing plate 104 is slidably installed inside the air grooves 103. Convex columns 105 are installed at both ends of the sealing plate 104. Cover plates 107 are arranged at the upper and lower ends of the inner core 102. Second sliding grooves 108 are formed on the cover plates 107. The convex columns 105 are slidably connected in the second sliding grooves 108;

[0047] A cleaning unit, which includes a lifting mechanism. An extrusion mechanism is arranged on one side of the lifting mechanism. The extrusion mechanism includes a pressure roller 207. The lifting mechanism drives the pressure roller 207 to move up and down to extrude the filter bag 113;

[0048] There are four filter bags 113, and eight cleaning units are provided and distributed on both sides of each filter bag 113.

[0049] A transmission unit, which includes a steering adjustment mechanism. The steering adjustment mechanism includes a rotating column 302. A clamping block 308 is movably inserted at the bottom of the rotating column 302. A first tooth ring 309 and a second tooth ring 310 are arranged at the bottom of the rotating column 302. Tooth grooves 311 are formed inside both the first tooth ring 309 and the second tooth ring 310. A transmission mechanism is arranged at the bottom of the rotating column 302. The transmission unit converts the directional rotation of the rotating unit into the lifting motion of the lifting mechanism through the steering adjustment mechanism and the transmission mechanism.

[0050] As Figures 1 to 4 shown, in the specific implementation, the rotating unit further includes a sealing ring 100. The cover plates 107 are fixedly connected to both ends of the sealing ring 100. The inner core 102 is movably connected inside the sealing ring 100, and the edge position of the inner core 102 is sealingly connected to the inner wall of the sealing ring 100. The rotating unit further includes a limiting mechanism. The limiting mechanism includes a backing plate 101. The backing plate 101 is fixedly connected to the upper and lower ends of the inner core 102. First sliding grooves 106 are formed on the backing plate 101. The convex columns 105 are slidably installed in the first sliding grooves 106. In this setting, when the sealing plate 104 slides in the air grooves 103, the convex columns 105 slide in the first sliding grooves 106 to limit the sealing plate 104.

[0051] Embodiment 2

[0052] As Figures 6 to 7As shown, in the specific implementation manner, the cleaning unit further includes a mounting plate 200. The lifting mechanism is located on one side of the mounting plate 200. The lifting mechanism includes a lead screw 215. Both ends of the lead screw 215 are rotatably installed with mounting brackets 203. An expansion link 201 is installed between the mounting bracket 203 and the mounting plate 200. A first spring 202 is movably sleeved on the expansion link 201. A matching sleeve 214 is movably sleeved on the lead screw 215;

[0053] The extrusion mechanism further includes a support frame 205. The matching sleeve 214 is fixedly installed on the support frame 205. The pressure roller 207 is rotatably connected to the support frame 205. One end of the mounting bracket 203 is installed with a positioning rod 204. A positioning cylinder 206 is fixedly installed on the support frame 205. The support frame 205 and the positioning cylinder 206 are movably sleeved on the positioning rod 204. In this setting, after the directions of the lead screws 215 in each cleaning unit are set, in the cleaning units corresponding to two filter bags 113 on the same side, the pressure rollers 207 move in the same direction, and move in the opposite direction to the pressure rollers 207 in the cleaning units corresponding to the two filter bags 113 on the other side, thereby realizing the alternating movement of the pressure rollers 207 on both sides.

[0054] As Figures 8 to 9 shown, further, the cleaning unit further includes a dislocation movement mechanism. The dislocation movement mechanism includes a mounting shaft 208. The mounting shaft 208 is fixedly installed on the support frame 205. One end of the mounting shaft 208 is rotatably installed with a rotating plate 210. A torsion spring 209 is installed between the rotating plate 210 and the mounting shaft 208. A limiting block 211 is fixedly installed on one side of the support frame 205. The limiting block 211 is adapted to the rotating plate 210. The dislocation movement mechanism further includes a fixing plate 212. A guiding plate 213 is fixedly installed on one side of the fixing plate 212. The guiding plate 213 is adapted to the rotating plate 210. In this setting, the torsion force of the torsion spring 209 acts on the rotating plate 210, so that the rotating plate 210 is continuously subjected to torsion force. When the rotating plate 210 is on the side of the guiding plate 213 close to the filter bag 113, one side of the guiding plate 213 abuts against the rotating plate 210. When the rotating plate 210 is on the other side of the guiding plate 213, the rotating plate 210 loses the block of the guiding plate 213 and rotates to a position where it fits with the limiting block 211.

[0055] Embodiment 3

[0056] As Figure 14As shown, in the specific implementation, a first connecting plate 303 is rotatably installed on the side of the rotating column 302. One end of the first connecting plate 303 is fixedly installed with a counterweight 304. One side of the first connecting plate 303 is rotatably installed with a second connecting plate 305. One end of the second connecting plate 305 is rotatably installed with a pressing block 306. The bottom of the pressing block 306 is rotatably installed with a push rod 307. The clamping block 308 is rotatably connected to the push rod 307. In this setting, the rotating column 302 drives the counterweight 304 to rotate. Under the action of centrifugal force, the counterweight 304 swings outward, and drives the pressing block 306 to move downward through the first connecting plate 303 and the second connecting plate 305. At this time, the pressing block 306 drives the clamping block 308 to extend out through the push rod 307.

[0057] As Figures 10 to 14 shown, further, the first gear ring 309 and the second gear ring 310 are connected by a bearing, and both the first gear ring 309 and the second gear ring 310 are movably sleeved on the outer bottom of the rotating column 302. One side of the first gear ring 309 and the second gear ring 310 are respectively meshed with a first gear 312 and a second gear 313. The first gear 312 and the second gear 313 are meshed with each other. The bottom of the second gear ring 310 is fixedly installed with a connecting sleeve 314. The bottom of the connecting sleeve 314 is installed with a third gear 315. The third gear 315 is rotatably installed on the top of the distribution cavity 112. In this setting, the first gear ring 309 and the second gear ring 310 are meshed through the first gear 312 and the second gear 313, so that the rotation directions of the first gear ring 309 and the second gear ring 310 are opposite, so that when the clamping block 308 is aligned with the first gear ring 309 or the second gear ring 310, the rotation direction of the second gear ring 310 is opposite.

[0058] As Figure 6 、 Figures 11 to 12As shown, further, the transmission mechanism includes a fixed frame 316, the fixed frame 316 is fixedly mounted on the top of the distribution chamber 112, a fourth gear 317 is rotatably mounted on the fixed frame 316, a rotating shaft is mounted at the bottom of the fourth gear 317, a first bevel gear 318 is mounted at the bottom of the rotating shaft, a second bevel gear 319 is meshedly connected to the side of the first bevel gear 318, a transmission shaft 321 is fixedly mounted at one end of the second bevel gear 319, a connecting frame 320 is movably sleeved between the transmission shaft 321 and the rotating shaft, and the transmission mechanism also includes a third bevel gear 323 and a fourth bevel gear 330. 24. The third bevel gear 323 and the fourth bevel gear 324 mesh with each other. The third bevel gear 323 is movably inserted on the transmission shaft 321. A mounting tube 322 is rotatably installed at one end of the third bevel gear 323. The mounting tube 322 is movably sleeved on the transmission shaft 321, and the mounting tube 322 is rotatably connected to the fourth bevel gear 324. A synchronous wheel 325 is installed at the end of the screw rod 215, and a synchronous belt 326 is installed between two adjacent synchronous wheels 325. The synchronous wheel 325 close to the fourth bevel gear 324 is fixedly installed at the bottom of the fourth bevel gear 324. In this configuration, the cross-section of the transmission shaft 321 is of a special shape to keep the second bevel gear 319 and the third bevel gear 323 rotating synchronously while meeting the sliding requirements of the third bevel gear 323. When the pressure roller 207 is on different sides of the guide plate 213, the position of the lead screw 215 is driven to change. At this time, the fourth bevel gear 324 and the third bevel gear 323 follow the position change. The active connection between the transmission shaft 321 and the third bevel gear 323 provides the position change condition for the third bevel gear 323 and the fourth bevel gear 324.

[0059] like Figure 5 , Figure 6 , Figure 11 , Figure 15As shown in the figure, further, the transmission unit further includes a triggering mechanism. The triggering mechanism includes a sleeve 300. A plug shaft 301 is movably inserted at the bottom of the sleeve 300. The plug shaft 301 is fixedly connected to a rotating column 302. An installation ring 330 is fixedly installed on the sleeve 300. A fixing ring 328 is fixedly installed on the plug shaft 301. A second spring 329 is movably sleeved outside the plug shaft 301 and the sleeve 300. The second spring 329 is fixedly connected to the fixing ring 328 and the installation ring 330. An electromagnet 327 is fixedly installed at the bottom of the lower cover plate 107. The electromagnet 327 is aligned with the fixing ring 328. Sensors 216 are installed at both ends of one of the mounting plates 200. The sensors 216 are electrically connected to the electromagnet 327. In this setting, when the sensor 216 detects the support frame 205, it emits an electrical signal to cause the electromagnet 327 to switch between the standby state and the working state. When the electromagnet 327 is in the working state, the electromagnet 327 adsorbs the fixing ring 328 to drive the rotating column 302 to move. At this time, the latch 308 is aligned with the first toothed ring 309. When the electromagnet 327 is in the standby state, the elastic force of the second spring 329 acts on the fixing ring 328 to cause the rotating column 302 to move in the reverse direction. At this time, the latch 308 is aligned with the second toothed ring 310.

[0060] As Figures 1 to 2 shown in the figure, further, an air inlet 109 is installed on one side of the sealing ring 100, and a transfer chamber 110 is installed on the other side. A conduit 111 is installed at one end of the transfer chamber 110. The conduit 111 communicates with the distribution chamber 112. A protective shell 331 is installed between the outer shell 114 and the cover plate 107. In this setting, the gas introduced into the air inlet 109 enters the transfer chamber 110 and then enters the distribution chamber 112, and then enters each filter bag 113 after passing through the distribution chamber 112.

[0061] The implementation principle of an oil separator for an automotive air conditioner in this embodiment is as follows: During use, align the air inlet 109 with the outlet of the compressor. When the compressor is working, high-pressure gas enters the inner core 102 through the air inlet 109 and fills the gas grooves 103. The side wall of the gas groove 103 is affected by the air pressure, causing the inner core 102 to rotate as a whole. At the same time, the air pressure drives the sealing plate 104 to move. During the movement of the sealing plate 104, the convex column 105 is driven to move. The convex column 105 slides along the second chute 108 to drive the inner core 102 to rotate further. When the inner core 102 drives the gas to rotate to the transfer chamber 110, the convex column 105 is reset under the action of the second chute 108 to discharge the gas into the transfer chamber 110. The gas enters the distribution chamber 112 through the transfer chamber 110 and the conduit 111, and then enters the filter bag 113 for oil-gas separation;

[0062] When the inner core 102 rotates, it drives the sleeve 300 to rotate. The sleeve 300 drives the insertion shaft 301 to rotate. The insertion shaft 301 drives the rotating column 302 to rotate. The rotating column 302 drives the counterweight 304 to rotate. Under the action of centrifugal force, the counterweight 304 swings outward, and drives the pressing block 306 to move downward through the first connecting plate 303 and the second connecting plate 305. At this time, the pressing block 306 drives the clamping block 308 to extend through the push rod 307. The clamping block 308 abuts against the tooth groove 311 to drive the first tooth ring 309 to move. The first tooth ring 309 drives the second tooth ring 310 to rotate through the first gear 312 and the second gear 313, so that the rotation direction of the second tooth ring 310 is opposite to that of the rotating column 302. The second tooth ring 310 drives the connecting sleeve 314 to rotate. The connecting sleeve 314 drives the third gear 315 to rotate. The third gear 315 drives the fourth gear 317 to rotate through meshing. The fourth gear 317 drives the first bevel gear 318 to rotate. The first bevel gear 318 drives the second bevel gear 319 to rotate through meshing. The second bevel gear 319 drives the third bevel gear 323 to rotate through the transmission shaft 321. The third bevel gear 323 drives the fourth bevel gear 324 to rotate. The fourth bevel gear 324 drives the synchronous pulley 325 to rotate, so that the lead screw 215 rotates. The lead screw 215 drives the adapter sleeve 214 to move, so that the support frame 205 and the pressure roller 207 move;

[0063] When the support frame 205 moves to the sensor 216, the support frame 205 is at one end of the lead screw 215. At this time, the lead screw 215 cannot continue to rotate, so that the rotating column 302 cannot rotate, and thus the counterweight 304 descends. The clamping block 308 retracts and disengages from the tooth groove 311. At this time, the sensor 216 controls the electromagnet 327 to switch to the standby state, and under the cooperative action of the second spring 329, the rotating column 302 undergoes displacement. At this time, the clamping block 308 moves along with it and aligns with the tooth groove 311 corresponding to the second tooth ring 310. At the same time, the rotating column 302 rotates again under the action of the inner core 102, so that the clamping block 308 drives the second tooth ring 310 to rotate. At this time, the rotating column 302 and the second tooth ring 310 rotate in the same direction. The second tooth ring 310 drives the lead screw 215 to rotate through the transmission unit. The lead screw 215 drives the support frame 205 and the pressure roller 207 to move in the reverse direction through the adapter sleeve 214;

[0064] When the support frame 205 moves downward, the elastic force of the first spring 202 causes the positioning rod 204 to approach the filter bag 113. Then, through the support frame 205, the pressure roller 207 is pressed against the filter bag 113. Under the squeezing action of the pressure rollers 207 on both sides, the adhered lubricating oil on the filter bag 113 is extruded. When the support frame 205 moves to the bottom, the rotating plate 210 rotates under the action of the torsion spring 209 and fits with the limit block 211. When the support frame 205 moves upward, the interaction between the rotating plate 210 and the guide plate 213 causes the support frame 205 to move, and then the pressure roller 207 is separated from the filter bag 113, so that the filter bag 113 will not be driven when the pressure roller 207 rises. When the support frame 205 moves to the top, the rotating plate 210 is separated from the guide plate 213, so that the support frame 205 is reset under the action of the first spring 202 and presses the filter bag 113 again.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An oil separator for an automotive air conditioner, characterized in that, It includes a housing (114), with a distribution chamber (112) fixedly installed at the top of the housing (114), and a filter bag (113) installed at the bottom of the distribution chamber (112). It further includes: A rotation unit, which includes a core (102). A plurality of air grooves (103) are provided on the side of the core (102). A sealing plate (104) is slidably installed inside the air grooves (103). Convex columns (105) are installed at both ends of the sealing plate (104). Cover plates (107) are provided at the upper and lower ends of the core (102). Second chutes (108) are provided on the cover plates (107). The convex columns (105) are slidably connected inside the second chutes (108); A cleaning unit, which includes a lifting mechanism. An extrusion mechanism is provided on one side of the lifting mechanism. The extrusion mechanism includes a pressure roller (207). The lifting mechanism drives the pressure roller (207) to move up and down to extrude the filter bag (113); A transmission unit, which includes a steering adjustment mechanism. The steering adjustment mechanism includes a rotating column (302). A block (308) is movably inserted at the bottom of the rotating column (302). A first tooth ring (309) and a second tooth ring (310) are provided at the bottom of the rotating column (302). Tooth grooves (311) are provided inside both the first tooth ring (309) and the second tooth ring (310). A transmission mechanism is provided at the bottom of the rotating column (302). The transmission unit converts the directional rotation of the rotation unit into the up and down movement of the lifting mechanism through the steering adjustment mechanism and the transmission mechanism; The cleaning unit further includes a mounting plate (200). The lifting mechanism is located on one side of the mounting plate (200). The lifting mechanism includes a lead screw (215). The two ends of the lead screw (215) are rotatably installed on mounting brackets (203). An expansion rod (201) is installed between the mounting brackets (203) and the mounting plate (200). A first spring (202) is movably sleeved on the expansion rod (201). A matching sleeve (214) is movably sleeved on the lead screw (215); The extrusion mechanism further includes a support frame (205). The matching sleeve (214) is fixedly installed on the support frame (205). The pressure roller (207) is rotatably connected to the support frame (205). A positioning rod (204) is installed at one end of the mounting bracket (203). A positioning cylinder (206) is fixedly installed on the support frame (205). The support frame (205) and the positioning cylinder (206) are movably sleeved on the positioning rod (204).

2. The oil separator for an automotive air conditioner according to claim 1, wherein The rotating unit further includes a sealing ring (100). The cover plate (107) is fixedly connected to both ends of the sealing ring (100). The inner core (102) is movably connected within the sealing ring (100), and the edge position of the inner core (102) is sealingly connected to the inner wall of the sealing ring (100). The rotating unit further includes a limiting mechanism. The limiting mechanism includes a backing plate (101). The backing plate (101) is fixedly connected to the upper and lower ends of the inner core (102). A first sliding groove (106) is formed in the backing plate (101), and the convex post (105) is slidably installed in the first sliding groove (106).

3. The oil separator for an automotive air conditioner according to claim 2, wherein, The cleaning unit further includes a dislocation moving mechanism. The dislocation moving mechanism includes a mounting shaft (208). The mounting shaft (208) is fixedly installed on the support frame (205). One end of the mounting shaft (208) is rotatably installed with a rotating plate (210). A torsion spring (209) is installed between the rotating plate (210) and the mounting shaft (208). A limiting block (211) is fixedly installed on one side of the support frame (205). The limiting block (211) is adapted to the rotating plate (210). The dislocation moving mechanism further includes a fixing plate (212). A guiding plate (213) is fixedly installed on one side of the fixing plate (212). The guiding plate (213) is adapted to the rotating plate (210).

4. The oil separator for an automotive air conditioner according to claim 3, wherein, A first connecting plate (303) is rotatably installed on the side surface of the rotating column (302). A counterweight (304) is fixedly installed at one end of the first connecting plate (303). A second connecting plate (305) is rotatably installed on one side of the first connecting plate (303). A pressing block (306) is rotatably installed at one end of the second connecting plate (305). A push rod (307) is rotatably installed at the bottom of the pressing block (306). The clamping block (308) is rotatably connected to the push rod (307).

5. The oil separator for an automotive air conditioner according to claim 4, wherein The first tooth ring (309) and the second tooth ring (310) are connected by a bearing, and both the first tooth ring (309) and the second tooth ring (310) are movably sleeved on the outer bottom of the rotating column (302). A first gear (312) and a second gear (313) are respectively meshingly connected to one side of the first tooth ring (309) and the second tooth ring (310). The first gear (312) and the second gear (313) are meshed with each other. A connecting sleeve (314) is fixedly installed at the bottom of the second tooth ring (310). A third gear (315) is installed at the bottom of the connecting sleeve (314). The third gear (315) is rotatably installed on the top of the distribution cavity (112).

6. The oil separator for an automotive air conditioner according to claim 5, characterized in that, The transmission mechanism includes a fixed frame (316) fixedly installed on the top of the distribution chamber (112). A fourth gear (317) is rotatably installed on the fixed frame (316). A rotating shaft is installed at the bottom of the fourth gear (317), and a first bevel gear (318) is installed at the bottom of the rotating shaft. A second bevel gear (319) is meshed and connected to the side of the first bevel gear (318). A transmission shaft (321) is fixedly installed at one end of the second bevel gear (319). A connecting frame (320) is movably sleeved between the transmission shaft (321) and the rotating shaft.

7. The oil separator for an automotive air conditioner according to claim 6, wherein, The transmission mechanism further includes a third bevel gear (323) and a fourth bevel gear (324) which are meshed with each other. The third bevel gear (323) is movably inserted on the transmission shaft (321). A mounting tube (322) is rotatably installed at one end of the third bevel gear (323). The mounting tube (322) is movably sleeved on the transmission shaft (321) and is rotatably connected to the fourth bevel gear (324). A synchronous pulley (325) is installed at the end of the lead screw (215), and a synchronous belt (326) is installed between adjacent synchronous pulleys (325). The synchronous pulley (325) close to the fourth bevel gear (324) is fixedly installed at the bottom of the fourth bevel gear (324).

8. The oil separator for an automotive air conditioner according to claim 7, wherein, The transmission unit further includes a triggering mechanism. The triggering mechanism includes a sleeve (300). A plug shaft (301) is movably inserted at the bottom of the sleeve (300). The plug shaft (301) is fixedly connected to a rotating column (302). A mounting ring (330) is fixedly installed on the sleeve (300). A fixing ring (328) is fixedly installed on the plug shaft (301). A second spring (329) is movably sleeved outside the plug shaft (301) and the sleeve (300). The second spring (329) is fixedly connected to the fixing ring (328) and the mounting ring (330). An electromagnet (327) is fixedly installed at the bottom of the lower cover plate (107). The electromagnet (327) is aligned with the fixing ring (328). Sensors (216) are installed at both ends of one of the mounting plates (200). The sensors (216) are electrically connected to the electromagnet (327).

9. The oil separator for an automotive air conditioner according to claim 8, characterized in that, An air inlet (109) is installed on one side of the sealing ring (100), and a transfer chamber (110) is installed on the other side. A conduit (111) is installed at one end of the transfer chamber (110). The conduit (111) communicates with the distribution chamber (112). A protective shell (331) is installed between the outer shell (114) and the cover plate (107).

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