CN217735737U - Pump body subassembly, compressor and heat transfer system - Google Patents

Abstract

The utility model discloses a pump body subassembly, compressor and heat transfer system, pump body subassembly includes the cylinder, the base bearing, auxiliary bearing and gleitbretter, the pump chamber has in the cylinder, base bearing and auxiliary bearing closing cap respectively in the axial both sides of cylinder, be equipped with the gas vent on at least one among base bearing and the auxiliary bearing, be equipped with the gleitbretter groove on the perisporium of cylinder, the gleitbretter imbeds the gleitbretter groove along the radial slidable ground of cylinder, the inner in gleitbretter groove is equipped with dodges the breach, the inner peripheral surface of cylinder has the exhaust incision, exhaust incision and gas vent intercommunication, and the exhaust incision with dodge the breach and be linked together, and through dodging breach intercommunication gleitbretter groove, wherein, in the projection of the axis direction along the cylinder, the gleitbretter staggers and exhaust incision and the gas vent at least part overlaps with the gas vent. Through using above-mentioned technical scheme, can increase the gas flow area to reduce the exhaust resistance, improve the exhaust effect of pump body subassembly, promote the work efficiency.

Description

Pump body subassembly, compressor and heat transfer system

Technical Field

The utility model relates to a heat transfer technology field especially relates to a pump body subassembly, have this pump body subassembly's compressor and have the heat transfer system of this compressor.

Background

In the working process of the compressor, the energy efficiency of the compressor can be directly reflected under the influence of various resistances. At the compressor exhaust stage, sheltered from by the part of gleitbretter, the gas vent flow area on the bearing reduces, and the exhaust is unobstructed, and then the flow resistance increase.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving one of the technical problems in the related art at least to a certain extent. Therefore, an object of the utility model is to provide a pump body subassembly can increase the gas flow area and reduce the exhaust resistance, improves pump body subassembly's exhaust effect, promotes the work efficiency.

Another object of the present invention is to provide a compressor, which includes the pump body assembly.

Another object of the utility model is to provide a heat transfer system, including aforementioned compressor.

According to the utility model discloses pump body subassembly, including cylinder, base bearing, secondary bearing and gleitbretter, the pump chamber has in the cylinder, the base bearing with secondary bearing respectively the closing cap in the axial both sides of cylinder, the base bearing with be equipped with the gas vent on at least one among the secondary bearing, be equipped with the gleitbretter groove on the perisporium of cylinder, the gleitbretter is followed embedding radially slidable of cylinder the gleitbretter groove, the inner in gleitbretter groove is equipped with dodges the breach, the inner peripheral surface of cylinder has the exhaust incision, the exhaust incision with the gas vent intercommunication, just the exhaust incision with dodge the breach and be linked together, and pass through dodge the breach intercommunication the gleitbretter groove, wherein, following in the projection of the axis direction of cylinder, the gleitbretter with the gas vent stagger just the exhaust incision with the gas vent at least part overlaps.

According to the utility model discloses pump body subassembly can increase the gas flow area and reduce the exhaust resistance, improves pump body subassembly's exhaust effect, promotes the work efficiency.

In addition, according to the present invention, the pump body assembly according to the above embodiment may further have the following additional technical features:

in some examples of the present invention, a rocker is connected to a distal end of the slider, the rocker is swingably connected to a distal end of the slider along a circumferential direction of the pump body, and the rocker retracts into the avoiding notch when the slider retracts into the slider groove.

In some examples of the present invention, the rockers retract into the avoidance gap, the rockers with the avoidance gap therebetween being greater than 20 μm.

In some examples of the invention, the rocker is rotatably connected to the slider about a predetermined axis, the predetermined axis being parallel to the axis of the cylinder.

In some examples of the invention, the sliding piece is tangent to the exhaust port when extended in a projection along an axial direction of the cylinder.

In some examples of the present invention, the exhaust cutout may completely overlap with the exhaust port or fall inside the exhaust port in a projection along an axial direction of the cylinder.

In some examples of the present invention, the exhaust notch is formed in a circumferential direction of the cylinder, and the exhaust port is formed in the same side of the slider.

In some examples of the invention, at least one of the avoiding notch, the sliding sheet groove and the exhaust notch runs through the cylinder along the axis direction of the cylinder.

According to the utility model discloses compressor, compressor includes aforementioned pump body subassembly.

According to the utility model discloses compressor through using aforementioned pump body subassembly, can reduce friction power and compressor entry, improves exhaust effect, and then improves the work efficiency of compressor.

According to the utility model discloses heat transfer system, heat transfer system includes aforementioned compressor.

According to the utility model discloses heat transfer system can improve the heat transfer effect.

Drawings

Fig. 1 is a schematic view of a compressor according to some embodiments of the present invention.

Fig. 2 is a schematic view of a part of the structure of the compressor according to some embodiments of the present invention (a bottom view of the cylinder and the upper bearing when the piston moves to the top dead center).

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a schematic diagram of the structure of the pump body assembly according to some embodiments of the present invention (bottom view of the cylinder and the upper bearing when the piston moves to the bottom dead center).

Fig. 5 is a schematic diagram of the structure of the slider cooperating with the rocker according to some embodiments of the present invention.

Fig. 6 is a schematic view of a portion of the structure of the sliding sheet and the sliding sheet groove according to some embodiments of the present invention.

Fig. 7 is a schematic diagram of a rocker in some embodiments of the present invention.

FIG. 8 is a schematic view of the slider and rocker configuration of other embodiments of the present invention.

Fig. 9 is a schematic view of a part of the structure of the sliding sheet in other embodiments of the present invention.

FIG. 10 is a schematic view of another embodiment of a rocker of the present invention.

Fig. 11 is a difference in the input force between a compressor using the pump body assembly according to the embodiment of the present invention and a compressor using a pump body according to the related art.

Fig. 12 is a graph showing the difference in energy efficiency of a compressor using the pump body assembly according to an embodiment of the present invention compared to a compressor using a related art pump body.

Reference numerals are as follows:

100. a compressor; 11. a cylinder; 101. an exhaust cut; 12. a main bearing; 102. an exhaust port; 13. a secondary bearing; 103. Avoiding the notch; 110. pressing the surface; 14. sliding blades; 104. a slide groove; 105. a first open slot; 106. a guide groove; 142. A second hinge surface; 143. a second connecting portion; 15. shaking the block; 15a, a first sub-rocker; 15b, a second sub-rocker; 153. A first connection portion; 152. a first hinge surface; 21. a main housing; 22. an upper housing; 23. a lower housing; 30. a stator; 40. A rotor; 50. a cam mechanism; 51. a piston; 52. a crankshaft.

Detailed Description

In the related art, the energy efficiency of the compressor can be directly reflected under the influence of various resistances in the working process of the compressor. On the one hand, in the compressor mechanism, in the gleitbretter motion process, the gas vent can be sheltered from by the gleitbretter in the motion, and the gas vent through-flow area on the bearing reduces, and the exhaust is unobstructed, and the flow resistance increases. On the other hand, the friction loss between the tip of the slide and the outer circumferential surface of the piston is large. In order to reduce this friction loss, in the related art, a needle roller is installed at a leading end of the vane, and the structure is intended to change sliding friction between the piston and the vane into rolling friction, so that friction power consumption is effectively reduced. However, the requirement of the needle roller structure on the reliability is extremely high, the contact stress between the needle roller and the piston is rapidly increased, the abrasion resistance of the needle roller material is challenged, the needle roller structure is easy to have the risk of needle roller rolling dead-locking failure, once the needle roller rolling failure occurs, the needle roller is rapidly worn until the compressor is dead-locked and failed, and an improvement space exists. Therefore, the utility model provides a pump body subassembly, exhaust incision 101 is through dodging breach 103 and the intercommunication of slide groove 104. By applying the technical scheme, the stress of the contact between the front end of the sliding piece 14 and the outer circular surface of the piston 51 can be improved, the lubricating state between the sliding piece 14 and the friction pair of the piston 51 is improved, the friction power consumption between the sliding piece 14 and the friction pair of the piston 51 is reduced, the reliability of the sliding piece is greatly improved, the exhaust port 102 is reasonable in position arrangement, exhaust is not shielded, and the exhaust resistance loss is reduced.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

With reference to fig. 1 to 12, according to the utility model discloses a pump body assembly, including cylinder 11, main bearing 12, secondary bearing 13 and gleitbretter 14, specifically, have the pump chamber in the cylinder 11, main bearing 12 and secondary bearing 13 respectively the closing cap in the axial both sides of cylinder 11, can prescribe a limit to compression space jointly with cylinder 11, are equipped with on at least one in main bearing 12 and the secondary bearing 13 and are used for carminative gas vent 102. The cylinder 11 is provided with a slide groove 104 on the peripheral wall thereof, the slide 14 is slidably fitted into the slide groove 104 in the radial direction of the cylinder 11, and the volume of the compression space can be changed when the slide 14 slides in the radial direction, thereby changing the gas pressure. Further, an escape notch 103 is provided at an inner end of the vane groove 104, the escape notch 103 avoids the interference of the vane 14 with the piston 51 when sliding, the inner peripheral surface of the cylinder 11 has an exhaust slit 101, the exhaust slit 101 communicates with the exhaust port 102, and the exhaust slit 101 communicates with the escape notch 103 and communicates with the vane groove 104 through the escape notch 103.

That is, the exhaust port 102, the exhaust slit 101, and the escape notch 103 are all communicated, and the gas can be mainly exhausted through the exhaust port 102. The avoidance notch 103 and the exhaust notch 10 can assist gas to be discharged, so that the problem that gas cannot be discharged when exhaust is shielded is solved, the exhaust effect can be improved, and the energy efficiency of the pump body assembly is improved. Specifically, the vent notch 103 can improve the exhaust effect, and when the compression process is terminated, the residual high-pressure gas in the cavity can be discharged from the vent notch 103, so that after the exhaust is finished, part of the gas which is not discharged is compressed again, theoretically, the pressure of the gas can reach infinity, the power consumption is high, and the stress condition of surrounding parts can be worsened.

Furthermore, in the projection along the axial direction of the cylinder 11, the sliding piece 14 is staggered with the exhaust port 102, the sliding piece 14 does not block the exhaust port 102 in the sliding process, and the exhaust notch 101 is at least partially overlapped with the exhaust port 102, so that the gas flow area can be increased, and the exhaust loss can be reduced.

According to the utility model discloses pump body subassembly, through the setting of staggering gas vent 102 and gleitbretter 14, and exhaust incision 101 and the at least partial overlap of gas vent 102, can increase the gas flow area and reduce the exhaust resistance, improve pump body subassembly's exhaust effect, promote the work efficiency.

In actual operation, the sliding sheet 14 can divide the pump cavity into compression spaces in the pump cavity, the piston 51 can rotate in the cylinder 11, when the piston 51 rotates, the sliding sheet groove 104 slides radially, the volume of the compression spaces is changed continuously, and therefore air in the pump cavity is compressed, air can enter from the air suction port and is discharged from the air discharge port 102 and the avoiding notch 103 to be communicated with the air discharge notch 101, and the air discharge notch 101 is partially overlapped with the air discharge port 102, therefore, air can also be discharged from the avoiding notch 103 in some cases, and the air discharge effect can be improved.

For example, depending on the rotation direction of the sliding piece 14, the gas is discharged from the exhaust slit 101 (most of the gas), and the remaining gas can be discharged from the escape notch 103 when the exhaust is finished. In general, since the valve sheet is further disposed on the exhaust port 102 to block the exhaust port 102, the exhaust port 102 may be opened and closed (not shown), and thus, when the exhaust is completed, the exhaust port 102 may be closed, and the residual high-pressure gas may be discharged to the vane groove 104 through the relief notch 103.

Optionally, the main bearing 12 may be provided with an exhaust port 102 for exhausting; an exhaust port 102 for exhausting air may be provided in the sub-bearing 13; the main bearing 12 and the sub bearing 13 may be provided with an exhaust port 102 for exhausting air, but the present invention is not limited thereto.

Combine fig. 2 and fig. 3 in some embodiments of the utility model, the tip of gleitbretter 14 is connected with rocker 15, and rocker 15 can swing along the circumference of the pump body and connect in the tip of gleitbretter 14, and rocker 15 is located between the gleitbretter 14 and the pump body, and the pump body during operation, rocker 15 can reduce the direct friction loss with the pump body contact of the tip of gleitbretter 14 along the swing of the pump body.

The cylinder 11 is provided with a sliding sheet groove 104, the sliding sheet 14 is arranged in the sliding sheet groove 104, the rocking block 15 is hinged with the front end of the sliding sheet 14, the rocking block 15 is pressed against the outer circular surface of the piston 51, and the inner end of the sliding sheet groove 104 is provided with an avoiding notch 103. The cylinder 11 is provided with an exhaust notch 101, an exhaust port 102 on the bearing is projected onto the cylinder 11, and the exhaust port 102 can approximately coincide with the exhaust notch 101, and the exhaust process is not blocked by the moving slide sheet 14.

Further, when the sliding sheet 14 retracts into the sliding sheet groove 104, the rocking block 15 can retract into the avoiding notch 103, and the rocking block 15 can be prevented from being in contact collision with the air cylinder 11. The tip of the sliding piece 14 refers to the end of the sliding piece 14 extending into the pump cavity near the outer circular surface of the piston 51. One end of the rocker 15 abuts against the tip of the slide 14, and the other end of the rocker 15 abuts against the outer circumferential surface of the piston 51.

With reference to fig. 3, further, in some embodiments of the present invention, when a compression process is completed, i.e. the rocker 15 is retracted into the avoiding notch 103, a gap greater than 20 μm is formed between the rocker 15 and the avoiding notch 103, and the gap can exhaust a part of the gas remaining when the compression process is completed, thereby improving the exhaust effect. For example, a gap of more than 30 μm or 40 μm may be provided between the rocker 15 and the relief notch 103, or a gap of 10 μm may be provided between the rocker 15 and the relief notch 103, as required.

In some embodiments of the present invention, the rocker 15 is rotatably connected to the slider 14 about a predetermined axis, which is parallel to the axis of the cylinder 11. In combination with the above, the sliding vane 14 reciprocates in the sliding vane groove 104 in the radial direction, the rocker 15 always presses against the outer circumferential surface of the piston 51, the rocker 15 swings relative to the sliding vane 14 about the first axis, and the rocker 15 swings in a direction parallel to the end surface of the cylinder 11. By arranging the rocker 15 between the sliding vane 14 and the piston 51, the contact stress between the sliding vane 14 and the piston 51 can be greatly reduced, the lubrication state is basically changed from the original boundary lubrication into the fluid dynamic lubrication, and the friction power consumption is effectively reduced. When the pump body releasing assembly is applied to the compressor 100, the cold leakage between the sliding vane 14 and the piston 51 can be reduced, and the energy efficiency of the compressor 100 is improved.

With reference to fig. 2 and 4, in some embodiments of the present invention, in the projection along the axial direction of the cylinder 11, the sliding piece 14 is tangent to the exhaust port 102 when extending out, so that the exhaust process is not blocked by the sliding piece 14 in motion, and the exhaust effect can be improved. Specifically, the sliding sheet 14 is tangent to the exhaust port 102 when extending out, that is, the sliding sheet 14 is prevented from shielding the exhaust port 102 when moving, and the sliding sheet can be close to the avoidance notch 103 at the inner end of the sliding sheet groove 104 as much as possible, so that the exhaust gas at the avoidance notch 103 is easily exhausted from the exhaust port 102.

With reference to fig. 4, in some embodiments of the present invention, in the projection along the axis direction of the cylinder 11, the exhaust notch 101 completely overlaps with the exhaust port 102 or the exhaust notch 101 falls into the exhaust port 102, the exhaust notch 101 may not be shielded by the sliding piece 14, and the gas in the exhaust notch 101 is discharged quickly and completely, which is beneficial to reducing the exhaust resistance and improving the exhaust effect. Fig. 4 shows a schematic view of the structure when the exhaust slit 101 and the exhaust port 102 completely overlap.

The utility model discloses an in some embodiments, upwards in the circumference of cylinder 11, gleitbretter 14 same one side is located to exhaust incision 101 and gas vent 102, and the incision 101 of being convenient for exhaust communicates with gas vent 102, does benefit to and reduces compressor 100 income power, increases the draught area of exhaust incision 101. In the manufacturing process, the exhaust notch 101 is only required to be provided in the vicinity of the position of the cylinder 11 facing the exhaust port 102, which facilitates the manufacturing.

The utility model discloses an in some embodiments, dodge at least one in breach 103, sliding piece groove 104 and the exhaust incision 101 and run through cylinder 11 along cylinder 11's axis direction, like this, the gas in the pump chamber can directly be followed cylinder 11's axis direction and dodged breach 103, sliding piece groove 104 or the direct discharge of exhaust incision 101, realizes dodging the upper and lower link up of breach 103, and the exhaust does not receive blockking, does benefit to and reduces the exhaust resistance loss.

Preferably, the avoidance notch 103, the slide groove 104 and the exhaust notch 101 penetrate through the cylinder 11 along the axial direction of the cylinder 11, so as to reduce the exhaust resistance and improve the exhaust effect.

With reference to fig. 3, according to some embodiments of the present invention, the tip of the sliding piece 14 refers to the end of the sliding piece 14 extending into the compression chamber near the outer circumferential surface of the piston 51. One end of the rocker 15 abuts against the tip of the slide 14, and the other end of the rocker 15 abuts against the outer circumferential surface of the piston 51. The rocker 15 has a pressing surface 110, the pressing surface 110 presses against the outer circumferential surface of the piston 51, and the width of the pressing surface 110 in the circumferential direction of the outer circumferential surface of the piston 51 is larger than the width of the leading end of the sliding piece 14.

Further, referring to fig. 5 to 7, a front end of the sliding piece 14 is provided with an arc-shaped first opening groove 105, the first opening groove 105 is open to the compression cavity of the cylinder 11, the sliding piece 14 is further provided with a guide groove 106, the guide groove 106 is connected to an open end of the first opening groove 105, two side walls of the guide groove 106 extend away from each other from one end to the other end connected to the side walls of the first opening groove 105, the rocker 15 includes a first connecting portion 153 and an arc-shaped first hinge surface 152, the rocker 15 may include a first hinge head in a cylindrical or fan-cylindrical shape, the first hinge surface 152 is a part of a peripheral wall of the first hinge head, the first hinge head is hinged to the first opening groove 105 at the front end of the sliding piece 14, and a width of the first connecting portion 153 is smaller than a diameter of the first hinge surface 152. The cooperation of the guide groove 106 and the first connecting portion 153 prevents the rocker 15 from interfering with the cylinder 11 when it swings. The arc of the first open slot 105 is greater than 180 deg., the arc of the first hinge surface 152 is greater than 180 deg., and the arc of the first hinge surface 152 is greater than the arc of the first open slot 105. This prevents the vanes 14 from disengaging from the rockers 15.

As shown in FIG. 5, the hinge point of the sliding piece 14 and the rocker 15 is located in the sliding piece 14, the radius of the first arc-shaped opening groove 105 at the front end of the sliding piece 14 is r1, and the radius of the first arc-shaped hinge surface 152 of the rocker 15 is r2, where r1 is greater than r2, and the opening angle of the first arc-shaped opening groove 105 at the front end of the sliding piece 14 is smaller than 180 degrees, so as to limit the rocker 15.

With reference to fig. 7 and 10, the rocker 15 may further include a first sub-rocker 15a and a second sub-rocker 15b connected to each other, the first sub-rocker 15a being hinged to the leading end of the vane 14 about the first axis, and the second sub-rocker 15b being pressed against the outer circumferential surface of the piston 51. The first sub-rocker 15a and the second sub-rocker 15b can be welded together, for example, the first sub-rocker 15a and the second sub-rocker 15b are welded together by one of laser welding, resistance welding, and furnace brazing. The first and second sub-rockers 15a, 15b may be made of one of steel, cast iron, or an alloy for welding.

It should be noted that the rocker 15 has a small size, and the rocker 15 has two matching surfaces to be machined, which are respectively used to form friction pairs with the sliding piece 14 and the piston 51, and the rocker 15 is divided into 2 sub-components, so that the machining is facilitated, and the manufacturing cost is reduced.

Therefore, the rocker 15 is arranged between the front end of the sliding piece 14 and the outer circular surface of the piston 51, the rocker 15 can be hinged with the front end of the sliding piece 14 around a first axis, the first axis is parallel to the axis of the cylinder 11, the rocker 15 presses against the outer circular surface of the piston 51, and in the working process of the pump body assembly, the rocker 15 is in sliding fit with the outer circular surface of the piston 51 to form a sliding friction pair, so that friction consumption is reduced.

With reference to fig. 8 to 10, according to the pump body assembly of the present invention according to other embodiments of the present invention, the front end of the sliding piece 14 is provided with an arc-shaped second hinge surface 142, the front end of the sliding piece 14 includes a second connecting portion 143 and a second hinge surface 142 of the sliding piece 14, the width of the second connecting portion 143 is smaller than the diameter of the second hinge surface 142, the rocker 15 includes a connecting arm 154, the connecting arm 154 forms the arc-shaped second opening groove 107, the sliding piece 14 may include a cylindrical or fan-column shaped second hinge joint, the second hinge surface 142 is a partial circumferential wall of the second hinge joint, and the second hinge joint is hinged to the second opening groove 107. The second connecting portion 143 of the vane 14 prevents the rocker 15 from interfering with the cylinder 11 when it swings. The arc of the second open slot is greater than 180 °, the arc of the second hinge surface 142 is greater than 180 °, and the arc of the second hinge surface 142 is greater than the arc of the second open slot. This prevents the vanes 14 from disengaging from the rockers 15.

Referring to fig. 10, the rocker 15 has a pressing surface 110 for pressing against the piston 51, the pressing surface 110 is arc-shaped, and at least a portion of the pressing surface 110 is inscribed in the outer circumferential surface of the piston 51. Therefore, the contact between the sliding piece 14 and the piston 51 is changed from the original externally tangent contact into the internally tangent contact, the friction power consumption is effectively reduced, and the cold leakage between the sliding piece 14 and the piston 51 is reduced.

Alternatively, the abutment surface 110 may be flat, which facilitates machining of the rocker 15 and also reduces contact stresses to a greater extent than the needle configuration of the related art. The rockers 15 may be made of one of steel, cast iron, plastic, alloy, and ceramic.

As shown in fig. 8, the hinge point of the sliding piece 14 and the rocker 15 is located at the rocker 15, the radius of the arc-shaped second hinge surface 142 from which the sliding piece 14 extends is r3, and the radius of the arc-shaped second opening groove 107 from which the rocker 15 contacts the sliding piece 14 is r4, where r3 is less than r4, and the opening angle of the arc-shaped second opening groove 107 of the rocker 15 is less than 180 °, so as to limit the hinge point from which the sliding piece 14 extends.

The technical effect that the pump body subassembly of the utility model produced is explained below with test data and parameter chart.

Through to using the utility model discloses a compressor of the pump body in pump body assembly's compressor 100 and the application correlation technique carries out a lot of tests, draws following conclusion, and the following table shows and uses the utility model discloses a compressor 100 of the pump body assembly (be the evaluation be the beautiful appearance) and the compressor of the pump body in the application correlation technique (be the contrast be the beautiful appearance) compare, under the same condition, use the utility model discloses compressor 100 of the pump body assembly of embodiment can effectively reduce compressor 100's income power, improves compressor 100's efficiency. For example: referring to the following table, under the condition of seasonal energy efficiency (seasonal efficiency) seer30, the inlet force of the compressor 100 of the present invention is 411, and the inlet force of the compressor in the related art is 415; the energy efficiency of the compressor 100 of the present invention is 666.8, and the input force of the compressor in the related art is 660.1.

Under the condition that the seasonal energy efficiency is 60, the input force of the compressor 100 of the utility model is 1058, and the input force of the compressor in the related art is 1080; the energy efficiency of the compressor 100 of the present invention is 415.1, and the input force of the compressor in the related art is 409.7. The utility model discloses a compressor 100's efficiency is 666.8, and compressor's income power is 660.1 among the correlation technique.

Under the condition that the seasonal energy efficiency is 90, the input force of the compressor 100 of the utility model is 1936, and the input force of the compressor in the related art is 1977; the utility model discloses a compressor 100's efficiency is 261.0, and compressor's income power is 256.9 among the correlation technique.

More specifically, it can be concluded through the analysis of the data in the table above that the larger the seer, the larger the difference between the input force of the comparison and the input force of the evaluation, the larger the energy efficiency difference, that is to say, the larger the seer, the more obvious the effect of the evaluation of the input force reduction and the energy efficiency improvement of the pump body assembly (i.e. the application of the compressor 100 of the pump body assembly).

As fig. 11 can reflect the difference of the input force between the compressor 100 using the pump body assembly and the compressor using the related art, fig. 12 can reflect the energy efficiency difference between the compressor 100 using the pump body assembly and the compressor using the related art.

In conclusion, according to the utility model discloses pump body subassembly, can greatly improve the stress of gleitbretter 14 tip and the outer disc contact of piston 51, improve the lubricated state between gleitbretter 14 and the piston 51 friction pair, reduce the friction consumption between gleitbretter 14 and the piston 51 friction pair widely, also make its reliability obtain greatly improving. The position of the bearing exhaust port 102 is reasonably arranged, exhaust is not shielded by the sliding piece 14, exhaust resistance loss is reduced, and exhaust effect is improved.

In combination with the drawings, the present invention further provides a compressor 100, the compressor 100 includes the aforementioned pump body assembly, and through applying the aforementioned pump body assembly, the friction power and the force of the compressor 100 can be reduced, the exhaust effect is improved, and the work energy efficiency of the compressor 100 is further improved.

Specifically, with reference to fig. 1, a compressor 100 according to an embodiment of the present invention includes: a housing, a stator 30, a rotor 40, a cam mechanism 50, and a pump body assembly. Specifically, the housing may include a main housing 21, an upper housing 22, and a lower housing 23, the main housing 21, the upper housing 22, and the lower housing 23 enclose a cavity, and the stator 30, the rotor 40, the cam mechanism 50, and the pump body assembly are mounted in the housing. The cam mechanism 50 includes a crankshaft 52 and a piston 51; the pump body assembly comprises a cylinder 11, a main bearing 12, a secondary bearing 13, a sliding vane 14 and a rocker 15. The cam mechanism 50 may be an integral structure.

In use, the rotor 40 is connected to the crankshaft 52 for driving the crankshaft 52 to rotate; the main bearing 12 and the auxiliary bearing 13 are respectively arranged on the upper surface and the lower surface of the cylinder 11, a compression space is formed among the cylinder 11, the main bearing 12 and the auxiliary bearing 13, the crankshaft 52 is rotatably arranged in the cylinder 11, the piston 51 is sleeved outside the eccentric part of the crankshaft 52, and the piston 51 is rotatably matched in the compression cavity under the driving of the crankshaft 52. The sliding sheet 14 reciprocates along the sliding sheet groove 104, the rocking block 15 always presses against the outer circular surface of the piston 51, the rocking block 15 swings relative to the sliding sheet 14 around the first axis, and the rocking block 15 swings in a direction parallel to the end surface of the cylinder 11.

Referring to fig. 2 and 4, the cylinder 11 has at least one exhaust slit 101 formed therein on the exhaust side of the cylinder 11. Correspondingly, at least one of the main bearing 12 or the auxiliary bearing 13 is provided with an exhaust port 102, the exhaust port 102 projects on the cylinder 11, the projection area is approximately coincident with the exhaust notch 101, or the exhaust port 101 is included, meanwhile, the exhaust port 102 is just tangent to one side of the sliding piece 14, and the exhaust process is not shielded by the moving sliding piece 14.

When the piston 51 moves to the top dead center, the sliding piece 14 and the rocking block 15 are both retracted into the sliding piece groove 104 at the moment, the avoiding notch 103 can avoid the contact collision between the rocking block 15 and the cylinder 11, the avoiding notch 103 can be communicated up and down, and when the rocking block 15 is fully retracted into the sliding piece groove 104, a gap is formed between the avoiding notch 103 and the rocking block 15, so that residual (or residual small part) gas in the pump body can be conveniently discharged.

During the operation of the rotary compressor 100, the exhaust notch 101 of the cylinder 11 is communicated with the vane slot 104 through the avoiding notch 103, and a small amount of compressed gas in the cylinder is exhausted through the avoiding notch 103 and the vane slot 104.

According to the compressor 100 of the embodiment of the present invention, the stress of the front end of the sliding vane 14 contacting the outer circular surface of the piston 51 can be improved, the lubrication state between the sliding vane 14 and the friction pair of the piston 51 can be improved, the friction power consumption between the sliding vane 14 and the friction pair of the piston 51 can be greatly reduced, and the reliability can be greatly improved; and the position of the bearing exhaust port 102 is reasonably arranged, exhaust is not shielded by the sliding piece 14, exhaust resistance loss is reduced, and refrigerating capacity is improved.

The utility model also provides a heat transfer system, heat transfer system includes aforementioned compressor 100, through using aforementioned compressor 100, can improve the heat transfer effect.

In the description of the present invention, it should be understood that the terms "width", "upper", "lower", "front", "rear", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A pump body assembly is characterized by comprising an air cylinder, a main bearing, an auxiliary bearing and a slip sheet, wherein a pump cavity is arranged in the air cylinder, the main bearing and the auxiliary bearing are respectively covered on two axial sides of the air cylinder, at least one of the main bearing and the auxiliary bearing is provided with an air exhaust port, a slip sheet groove is arranged on the circumferential wall of the air cylinder, the slip sheet is embedded into the slip sheet groove in a sliding manner along the radial direction of the air cylinder, an avoiding notch is arranged at the inner end of the slip sheet groove, an air exhaust notch is arranged on the inner circumferential surface of the air cylinder and communicated with the air exhaust port, the air exhaust notch is communicated with the avoiding notch and communicated with the slip sheet groove through the avoiding notch,

wherein, in the projection along the axis direction of cylinder, gleitbretter with the gas vent staggers and the exhaust incision with the gas vent at least partial overlap.

2. The pump body assembly according to claim 1, wherein a rocker is connected to a leading end of the slide, the rocker being swingably connected to a leading end of the slide in a circumferential direction of the pump body, the rocker being retracted into the escape notch when the slide is retracted into the slide groove.

3. The pump body assembly according to claim 2, wherein the rockers have a clearance from the avoidance gap of greater than 20 μm when retracted into the avoidance gap.

4. The pump body assembly of claim 2, wherein the rocker is rotatably connected to the slide about a predetermined axis that is parallel to an axis of the cylinder.

5. The pump body assembly according to any one of claims 1 to 4, wherein, in a projection along the axial direction of the cylinder, the slide is tangential to the exhaust port when extended.

6. The pump body assembly according to any one of claims 1 to 4, wherein the exhaust cutout completely overlaps with the exhaust port or falls inside the exhaust port in a projection in an axial direction of the cylinder.

7. The pump body assembly of any one of claims 1-4, wherein the exhaust cutout and the exhaust port are located on a same side of the vane in a circumferential direction of the cylinder.

8. The pump body assembly according to any one of claims 1 to 4, wherein at least one of the relief notch, the vane groove, and the exhaust cutout penetrates the cylinder in an axial direction of the cylinder.

9. A compressor, characterized in that it comprises a pump body assembly according to any one of claims 1 to 8.

10. A heat exchange system, characterized in that it comprises a compressor according to claim 9.

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