WO2020098037A1

WO2020098037A1 - Sliding vane structure, pump assembly, and compressor

Info

Publication number: WO2020098037A1
Application number: PCT/CN2018/120675
Authority: WO
Inventors: 张洪玮; 赵旭敏; 彭慧明; 卢林高; 樊峰刚
Original assignee: 珠海格力节能环保制冷技术研究中心有限公司
Priority date: 2018-11-16
Filing date: 2018-12-12
Publication date: 2020-05-22
Also published as: CN109322828B; CN109322828A

Abstract

A sliding vane structure, a pump assembly, and a compressor. The sliding vane structure comprises: a hinge connection sliding vane (10), a first end of the hinge connection sliding vane (10) being hinge-connected to a roller (40), a middle portion of the hinge connection sliding vane (10) having an accommodation cavity (11), and a vent hole (12) communicating with the accommodation cavity (11) being provided on the hinge connection sliding vane (10); and a variable-volume sliding vane assembly (20), the variable-volume sliding vane assembly (20) being movably provided in the accommodation cavity (11), and a refrigerant being introduced into the accommodation cavity (11) via the vent hole (12), such that the variable-volume sliding vane assembly (20) can be in an operation position in which the variable-volume sliding vane assembly (20) is connected to the roller (40), or a dismount position in which the variable-volume sliding vane assembly (20) is separated from the roller (40). In operation, the sliding vane having the above structure reduces a contact area between the variable-volume sliding vane assembly (20) and the roller (40), thereby reducing noise generated by the variable-volume sliding vane assembly (20), and improving the practicability and reliability of a compressor having the sliding vane structure.

Description

Sliding vane structure, pump body assembly and compressor

Technical field

The invention relates to the technical field of compressor equipment, in particular, to a sliding plate structure, a pump body assembly and a compressor.

Background technique

In the field of compressors, performance improvement under low-temperature heating has always been the focus of research. The heating efficiency can be improved by increasing the enthalpy and supplemental gas, but the heating efficiency can be more directly affected by changing the compressor displacement. In addition, the existing structure is that the spring presses the slider against the roller. Under the thermal condition of the compression mechanism, it is easy to cause liquid shock due to the suction and liquid, resulting in the separation of the roller and the slider. The impact of the two generates a loud noise.

Summary of the invention

The main purpose of the present invention is to provide a sliding plate structure, a pump body assembly and a compressor to solve the problem of noise generated by the collision between the compressor sliding plate and the roller in the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a sliding plate structure, including: an articulated slide plate, a first end of the articulated slide plate is used to articulate with a roller, and a middle portion of the articulated slide plate has a receiving cavity, The hinged slide is provided with a vent hole communicating with the accommodating cavity; a variable volume slide assembly, the variable volume slide assembly can be movably arranged in the accommodating cavity, and a refrigerant is introduced into the accommodating cavity through the vent hole to make the variable volume slide The vane assembly has a working position connected to the roller, or the variable-capacity vane assembly and the roller can have an unloading position arranged at a distance.

Further, the variable volume slide assembly includes: a variable volume slide, the variable volume slide is movably disposed in the accommodating cavity; an elastic piece, a first end of the elastic piece is connected to the tail of the variable volume slide, the elastic piece The second end is connected to the cavity wall of the accommodating cavity, and the refrigerant is introduced into the accommodating cavity through the vent hole, so that the head of the varactor slide can have a working position connected with the roller, or the varactor slide can be made The head and the roller have unloading positions which are arranged at a distance.

Further, when the elastic member is in a natural state, the head of the varactor slide is in the unloading position.

Further, the profile of the head of the varactor slide is the same as the profile of the first end of the hinged slide. The distance between the head of the slider and the roller is provided.

Further, the width of the head of the variable-capacity slider is smaller than the width of the receiving cavity. When the variable-capacity slider is in the unloading position, the head of the variable-capacity slider is located in the receiving cavity.

Further, the varactor slider includes: a varactor slider body, one end of the varactor slider body is connected to an elastic member; a slider head, the slider head has a columnar structure, the slider head and the varactor slider The other end of the body is connected, and the variable-capacity slider body is connected to the roller through the slider head, and the axis of the slider head extends along the width direction of the variable-capacity slider body.

Further, the hinged slider includes: a slider body; a first connector, the first connector has a columnar structure, one side of the first connector is connected to the first end of the slider body; a second connector, the second The connecting body has a columnar structure. One side of the second connecting body is connected to the first end of the slider body and is spaced apart from the first connecting body. The accommodating cavity is opened between the first connecting body and the second connecting body. On the blade body, the first connector and the second connector are coaxially arranged, the slider body is hinged to the roller through the first connector and the second connector, the axis of the slider head and the axis of the first connector Parallel.

Further, at least part of the outer peripheral surface of the first connecting body has a first arc shape, and at least part of the outer peripheral surface of the second connecting body has a second arc shape, and the first and second arc shapes the same.

Further, the vent hole is opened on the end surface of the second end of the hinge slide.

According to another aspect of the present invention, there is provided a pump body assembly including a sliding plate structure. The sliding plate structure is the foregoing sliding plate structure.

Further, the pump body assembly includes: a variable volume cylinder, the variable volume cylinder has a working cavity, and a sliding groove for accommodating a hinged slide is opened on the cavity wall of the working cavity; a roller, the roller is disposed in the working cavity, the sliding The hinged slide of the structure is hinged with the roller; the first plate body is connected to the first end of the variable volume cylinder; the second plate body is connected to the second end of the variable volume cylinder , The first plate body, the second plate body and the sliding plate groove are enclosed into a closed accommodating space, and the accommodating cavity communicates with the accommodating space through the vent hole, wherein the first plate body, the second plate body and the variable volume cylinder At least one of them is provided with a supplemental gas channel.

Further, when high-pressure refrigerant is introduced into the accommodating space through the supplementary air channel, the variable-volume slider of the variable-volume slider assembly can be located at the working position, and when low-pressure refrigerant is introduced into the accommodating space through the supplemental air channel, Position the variable-capacity slider of the variable-capacity slider assembly in the unloading position.

Further, when the variable-capacity slider is located at the unloading position, a path connecting the suction cavity and the compression cavity of the working cavity is formed between the head of the variable-capacity slider and the roller.

Further, the pump body assembly further includes: a fixed-volume cylinder, the fixed-volume cylinder is located on one side of the variable-volume cylinder, the crankshaft of the pump body assembly passes through the fixed-volume cylinder and the variable-volume cylinder, and the fixed-volume roller is arranged on the fixed volume In the cylinder; fixed volume slide, the fixed volume slide is set in the fixed volume cylinder and hinged with the fixed volume roller.

Further, the intake port of the fixed volume cylinder and the intake port of the variable volume cylinder are independently provided, and the exhaust port of the fixed volume cylinder and the exhaust port of the variable volume cylinder are independently provided; or the exhaust port of the variable volume cylinder and The suction ports of the fixed volume cylinder are connected.

Further, at least one of the variable volume cylinder and the fixed volume cylinder is plural.

According to another aspect of the present invention, there is provided a compressor including a pump body assembly, the pump body assembly being the above-mentioned pump body assembly.

Applying the technical solution of the present invention, the slider structure is composed of two parts, wherein the hinged slider is connected to the roller, and the variable-capacity slider provided in the hinged slider receiving cavity can be controlled by controlling the type of refrigerant It is located at the working position or the unloading position. This arrangement can avoid the situation that the sliding plate in the prior art directly applies a preload force through the spring to contact the roller to generate noise. The slider with this structure reduces the contact area between the variable-capacity slider assembly and the roller during operation, which effectively reduces the noise generated by the variable-capacity slider assembly and effectively improves the structure with the slider The practicality and reliability of the compressor.

BRIEF DESCRIPTION

The accompanying drawings forming part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation on the present invention. In the drawings:

1 shows a schematic cross-sectional structure diagram of a first embodiment of a slider structure according to the present invention;

2 shows a schematic structural view of a second embodiment of the slider structure according to the present invention;

3 shows a schematic cross-sectional structure diagram of a third embodiment of the slider structure according to the present invention;

FIG. 4 shows a schematic structural view of a fourth embodiment of the slider structure according to the present invention;

5 shows a schematic cross-sectional structure diagram of a fifth embodiment of the slider structure according to the present invention;

6 shows an exploded schematic view of an embodiment of the assembly of the slider structure and roller according to the present invention;

7 shows a schematic structural view of an embodiment of the assembly of the slider structure and roller according to the present invention;

8 shows a schematic structural view of a first embodiment of a pump body assembly according to the present invention;

9 shows a schematic structural view of a second embodiment of the pump body assembly according to the present invention;

10 shows a schematic structural view of a third embodiment of the pump body assembly according to the present invention;

11 shows a schematic structural view of a fourth embodiment of the pump body assembly according to the present invention;

FIG. 12 shows a schematic structural diagram of a first embodiment of a variable-capacity slider according to the present invention;

13 shows a schematic structural view of a second embodiment of a variable-capacity slider according to the present invention;

14 shows a schematic cross-sectional structural view of an embodiment of a compressor according to the present invention.

Among them, the above drawings include the following reference signs:

10. Hinge slide; 11. Receiving cavity; 12. Ventilation hole; 13. Slide body; 14. First connector; 15. Second connector;

20. Variable volume slider assembly; 21. Variable volume slider; 22. Elastic member; 211. Variable volume slider body; 212. Slider head;

30. Variable volume cylinder;

40. Roller;

50. Constant volume cylinder;

60. Fixed volume roller;

70, fixed volume slide; 71, middle partition; 72, lower flange; 73, air supplement channel.

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other if there is no conflict. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

It should be noted that the terminology used herein is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate There are features, steps, operations, devices, components, and / or combinations thereof.

It should be noted that the terms “first” and “second” in the specification, claims and drawings of the present application are used to distinguish similar objects, and need not be used to describe a specific order or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, processes, methods, systems, products or devices that contain a series of steps or units need not be limited to those clearly listed Those steps or units, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or equipment.

For ease of description, spatial relative terms can be used here, such as "above", "above", "above", "above", etc., used to describe as shown in the figure The spatial relationship between a device or feature shown and other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the device described in the figures. For example, if the device in the drawings is turned upside down, a device described as "above another device or configuration" or "above another device or configuration" will then be positioned as "below other device or configuration" or "in Under other devices or structures ". Thus, the exemplary term "above" may include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or at other orientations), and the relative description of the space used here is explained accordingly.

Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms, and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of this application thorough and complete, and to fully convey the idea of these exemplary embodiments to those of ordinary skill in the art. In the drawings, for the sake of clarity, it is possible to expand The thicknesses of the layers and regions are described, and the same reference numerals are used to denote the same devices, and thus their description will be omitted.

With reference to FIGS. 1 to 14, according to an embodiment of the present invention, a slider structure is provided.

Specifically, as shown in FIG. 1, the slider structure includes a hinged slider 10 and a variable-capacity slider assembly 20. The first end of the hinge slide 10 is used to hinge with the roller. The hinge slide 10 has a receiving cavity 11 in the middle, and the hinge slide 10 is provided with a vent hole 12 communicating with the receiving cavity 11; the variable volume slide assembly 20 is movably arranged in the accommodating cavity 11, and a refrigerant is introduced into the accommodating cavity 11 through the vent hole 12, so that the variable-volume slider assembly 20 can have a working position connected with the roller, or the variable-volume slider assembly can be made 20 has an unloading position set away from the roller.

In this embodiment, the slider structure is composed of two parts, in which the hinged slider is connected to the roller, and the variable-capacity slider provided in the hinged slider receiving cavity can be controlled by controlling the type of refrigerant It is located at the working position or the unloading position. This arrangement can avoid the situation that the sliding plate in the prior art directly applies a preload force through the spring and abuts the roller to generate noise. The slider with this structure reduces the contact area between the variable-capacity slider assembly and the roller during operation, which effectively reduces the noise generated by the variable-capacity slider assembly and effectively improves the structure with the slider The practicality and reliability of the compressor.

The variable volume slide assembly 20 includes a variable volume slide 21 and an elastic member 22. The variable volume slide 21 is movably arranged in the accommodating cavity 11. The first end of the elastic member 22 is connected to the tail of the variable-volume slider 21, and the second end of the elastic member 22 is connected to the cavity wall of the accommodating cavity 11, and the refrigerant is introduced into the accommodating cavity 11 through the vent hole 12, so that The head of the variable volume slide 21 has a working position connected to the roller, or the head of the variable volume slide 21 and the roller may have an unloading position provided at a distance. Among them, the elastic member may be a spring. This arrangement can reduce the contact area between the sliding plate and the roller under the structure of the same type of compressor, thereby reducing the noise generated when the sliding plate and the roller work.

Specifically, as shown in FIGS. 1 to 3, when the elastic member 22 is in a natural state, the head of the varactor 21 is at the unloading position.

The profile of the head of the variable volume slide 21 is the same as the profile of the first end of the hinge slide 10, when the variable volume slide 21 is in the unloading position, the head of the variable volume slide 21 is located outside the receiving cavity 11, In addition, the head of the variable volume slide 21 and the roller are arranged at a distance. This arrangement can effectively improve the sealing between the variable volume slide and the roller during operation.

Of course, the width of the head of the varactor slide 21 may also be set to be smaller than the width of the receiving cavity 11. When the varactor slide 21 is located in the unloading position, the head of the varactor slide 21 may be located in the receiving cavity 11.

Preferably, when the varactor slide 21 is in the working position, the head of the varactor slide 21 is hinged with the roller. This arrangement can further reduce the noise of the compressor.

As shown in FIG. 1, in the first embodiment of the present application, the variable volume slide 21 includes a variable volume slide body 211 and a slide head 212. One end of the variable volume slider body 211 is connected to the elastic member 22. The slider head 212 is arranged in a columnar structure. The slider head 212 is connected to the other end of the variable-volume slider body 211. The variable-volume slider body 211 is connected to the roller through the slider head 212. The slider head The axis of 212 extends along the width direction of the variable-capacity slider body 211. This arrangement can improve the reliability of the connection between the varactor slide and the roller.

The hinge slide 10 includes a slide body 13, a first connecting body 14 and a second connecting body 15. The first connecting body 14 is provided in a columnar structure, and one side of the first connecting body 14 is connected to the first end of the slider body 13. The second connecting body 15 is also provided in a columnar structure. One side of the second connecting body 15 is connected to the first end of the slider body 13 and is spaced apart from the first connecting body 14. The accommodating cavity 11 is opened in the first connecting body On the slider body 13 between the 14 and the second connector 15, the first connector 14 and the second connector 15 are arranged coaxially, and the slider body 13 passes through the first connector 14 and the second connector 15 and the roller The sub-phases are hinged, and the axis of the slider head 212 is parallel to the axis of the first connecting body 14. This arrangement can improve the reliability of the hinge slide. The first connector 14 and the second connector 15 have the same structure.

Further, at least a part of the outer peripheral surface of the first connecting body 14 is set in a first arc shape, and at least a part of the outer peripheral surface of the second connecting body 15 is set in a second arc shape. The second arc is the same. The vent hole 12 is opened on the end surface of the second end of the hinge slide 10.

The sliding vane structure in the above embodiment can also be used in the field of pump body assemblies, that is, according to another aspect of the present invention, a pump body assembly is provided, including a sliding vane structure, which is the sliding vane in the above embodiment structure.

Among them, the pump body assembly includes a variable volume cylinder 30, a roller 40, a first plate body and a second plate body. The variable volume cylinder 30 has a working cavity, and a sliding groove for accommodating the hinged sliding plate 10 is opened on the wall of the working cavity. The roller 40 is disposed in the working cavity, and the hinge slide 10 of the slider structure is hinged with the roller 40. The first plate body is connected to the first end of the variable volume cylinder 30. The second plate body is connected to the second end of the variable volume cylinder 30. A closed receiving space is enclosed between the first plate body, the second plate body and the slide groove, and the containing cavity 11 communicates with the containing space through the vent hole 12, wherein the first plate body, the second plate body and the variable volume At least one of the cylinders 30 is provided with a supplemental air passage 73. As shown in FIG. 14, the first plate body may be the middle partition plate 71, the second plate body may be the lower flange 72, and the supplemental air passage 73 is opened on the variable volume cylinder.

The working chamber of the cylinder includes an suction chamber and a compression chamber. When high-pressure refrigerant is introduced into the accommodating space through the supplemental air passage 73, the variable volume slider 21 of the variable volume slider assembly 20 can be located at the working position when the supplementary air is passed. When the channel passes the low-pressure refrigerant into the accommodating space, the variable-capacity slider 21 of the variable-capacity slider assembly 20 can be located at the unloading position. When the volume-changing slide 21 is in the unloading position, a path connecting the suction chamber and the compression chamber of the working chamber is formed between the head of the volume-changing slide 21 and the roller 40.

The pump body assembly also includes a fixed volume cylinder 50, a fixed volume roller 60, and a fixed volume slide 70. The fixed-volume cylinder 50 is located on one side of the variable-volume cylinder 30, and the crankshaft of the pump body assembly is sequentially arranged through the fixed-volume cylinder 50 and the variable-volume cylinder 30. The fixed volume roller 60 is provided in the fixed volume cylinder 50. The fixed-volume slide 70 is disposed in the fixed-volume cylinder 50 and is hinged with the fixed-volume roller 60. This setting can enable the high-pressure refrigerant to pass through the supplemental air channel to make the variable-capacity cylinder work when it is necessary to increase the displacement. When the displacement is not needed, the low-pressure refrigerant can be passed to make the variable-capacity cylinder inactive. Only the fixed volume cylinder is in working condition. This arrangement can effectively improve the practicability and reliability of the pump body assembly.

Further, the intake port of the fixed volume cylinder 50 and the intake port of the variable volume cylinder 30 are independently provided, and the exhaust port of the fixed volume cylinder 50 and the exhaust port of the variable volume cylinder 30 are independently provided. This arrangement enables the pump body assembly to achieve single-cylinder compression performance. Of course, it can also be arranged such that the exhaust port of the variable volume cylinder 30 communicates with the intake port of the fixed volume cylinder 50. In this way, the refrigerant compressed by the variable-volume cylinder can enter the fixed-volume cylinder and be compressed again, so as to achieve the effect of two-stage compression. Among them, at least one of the variable volume cylinder 30 and the fixed volume cylinder 50 may be provided in plural. The multiple variable-volume cylinders 30 and the fixed-volume cylinders 50 may be compressed individually or in a multi-stage compression mode.

The pump body assembly in the above embodiment can also be used in the technical field of compressor equipment, that is, according to another aspect of the present invention, a compressor is provided that includes a pump body assembly, and the pump body assembly is the pump body in the above embodiment Components.

Specifically, the compressor with this structure solves the problem of variable volume under specific working conditions of the compressor, solves the problem of the click sound of the compressor suction and liquid in the prior art, and also solves the extreme working condition of the compressor The problem of poor heating effect and low performance. The sliding plate structure adopting this structure avoids the click sound generated by the collision between the roller and the sliding plate, enables the compressor to achieve volume change, and improves the thermal efficiency and capacity of the compression mechanism;

The articulated sliding plate adopts the variable volume sliding plate in the sliding plate to realize the separation and collusion function of the high and low pressure chambers of the variable volume cylinder, and realize the variable volume of the compressor. It produces the noise of liquid blow, and greatly improves the heating efficiency and capacity, meets the performance requirements under extreme operating conditions, and expands the scope of compressor use.

When the variable-capacity cylinder structure is used on the compressor, the compressor can adopt the ordinary double-cylinder mode, the lower cylinder adopts the variable-capacity cylinder structure, and the upper cylinder adopts the articulated cylinder structure without variable capacity. In this mode, when low-pressure gas is passed through the variable volume liquid separator, the lower cylinder does not work, and the upper cylinder works alone. At this time, the compressor is in single cylinder mode. When high-pressure gas is passed through the variable-volume dispenser, the lower cylinder works with the upper cylinder, and the compressor is in dual-cylinder mode.

As shown in Figure 1 and Figure 2, during the operation of the compressor, the slider head is always close to the roller. By adopting the articulated form, the slider head has a circular part and the circular groove of the roller is always hinged at Together, the hinged slide and the hinged roller are constructed, wherein the hinged roller is shown in FIGS. 6 and 7.

In FIG. 1, the variable-capacity slide is small and can be accommodated in the receiving cavity inside the hinged slide. The tail of the variable-capacity slide is connected to the spring in the containing cavity to ensure extension and extension during operation. . At the same time, the arc of the varactor slide head and the hinged slide head are consistent, the contact area is smaller than the hinged slide, so that it can be fully contained inside the hinged slide (the other form is the varactor slide head and the hinged slide The head is exactly the same, the varactor slide cannot be fully received inside the hinged slide but can be moved, the heads of the two slides can be non-parallel, that is, a small range of offset settings can be allowed), and at the same time through the varactor slide tail The part is provided with a round hole or welded structure that hooks the spring, and a corresponding round hole or welded structure hinged to the tail of the slider on the other side, so that the spring is always connected to the two slides. Specifically, the spring can enter from the vent hole of the hinged slider tail, and the spring pressure ring larger than the vent hole abuts against the hinged slider tail, and the spring head can be hooked to the ring of the variable volume slider tail , To achieve the elastic connection of the two slides. Alternatively, the spring is in the form of a two-end hook, and the spring is hooked through the hinge ring of the slider and the tail ring of the variable-capacity slider to achieve elastic connection.

The setting of the spring elastic coefficient is particularly important. The standard is that the head of the varactor slide can be moved away from the arc with the hinged slide head under the action of external force, so that it can be pulled back into the hinged slide due to the spring force. Therefore, a relatively tight connection can be used in the assembly process to ensure that the spring will not fall off with the slide during the movement.

The slider is combined with the roller groove through the arc of the head. During the operation of the compressor, the original roller rotation and translation are converted into roller swing and translation. During the movement, the two will not be impacted by hydraulic force. This causes the slider to disengage from the rollers, producing a rattling sound when the roller collides with the slider. At the same time, the setting of the spring force should ensure that during the movement of the slider, the internal variable volume slider will not reach the position shown in FIG. 3 due to the back and forth movement of the slider, that is, the level of the arc junction between the two is consistent.

As shown in Figure 1, under normal conditions, the spring makes the variable-capacity slider stored in the hinged slider, the two will not change the relative position to the position of Figure 3 due to the movement of the component, Figure 1 is when the hinged slider tail is open When high-pressure gas is introduced, due to the small gap around the varactor slide and the action of the oil film, the gas force can ensure that the varactor slide moves toward the head of the hinged slide, and the restriction of the extension of the head is given by the hinged roller And it will not protrude from the arc head of the hinged slide head, to ensure that the head of the variable volume slide is always close to the roller to follow the crankshaft to move, and complete the motion function as a whole slide.

As shown in Figures 8 and 9, the sliding plate structure and the rollers are driven by the crankshaft. The initial movement is shown in Figure 8, and half of the intake and exhaust are shown in Figure 9, as shown in Figure In 8, the tail of the hinged slider is connected with the supplementary air channel, and the upper and lower end faces are sealed by a partition plate and a flange to ensure that there is no leakage in the intake path of the supplementary air, so that it can only pass through the vent hole of the hinged slider tail Entering the interior space of the hinged slide, the final gas force acts on the tail of the hinged slide. The rest of the structure is consistent with the general cylinder. As shown in Figure 9, when the suction and exhaust process is halfway through, the left side of the slider structure is a low-pressure chamber, and the right side is a high-pressure chamber, which are connected to the suction port and the exhaust port, respectively. The state is that the hinged slider and the head of the variable-capacity slider are on the same axis, and the cylinder in this state can complete normal suction and exhaust operations.

As shown in Figure 10, when the exhaust is close, the arc axes of the heads of the two sliders are unified at this time, and the high-pressure gas should be used at the volume-changing and gas-supplying place to ensure the volume change under the action of the gas force. The head of the slider will not be retracted inside the hinged slider due to the action of the integrated force, completing the function as an integral slider, at this time the gas is only discharged from the exhaust port. As shown in Figure 11, when the volume-changing and supplemental gas is low-pressure gas, the gas force is insufficient to support the volume-changing slider to keep the head extended during the movement of the hinged slider, and the head of the volume-changing slider slides back. Hinges the inside of the slide, so that there is a channel connecting the high and low pressure chambers at the slide, high pressure gas mainly flows into the low pressure chamber from the channel, the cylinder is not working, and there is no exhaust at the exhaust valve. The cylinder is reduced without working to achieve the function of variable volume.

The difference between Fig. 10 and Fig. 11 is that the gas passing through the variable volume supplementary gas port is different, and the ultimate effect is that the gas force applied to the tail of the variable volume slider is different. When the gas force received can support its spring tension, cylinder gas pressure, and friction Under the action of force and inertial force of the slider motion, the head always keeps the arc axis parallel to the arc axis of the hinged slider. As shown in Figure 1, the entire slider has no leakage channel, so it can complete the function as a slider. At this time, the two slides as a whole can ensure that the low-pressure side and the high-pressure side are separated, and the cylinder completes its intake and exhaust actions. When the low-pressure gas is introduced into the variable-volume replenishment port, the gas force at the tail of the variable-volume slider is not sufficient to support the head extension during the intake and exhaust of the cylinder, as shown in FIG. The displacement of the slider's head causes a leak channel, and the gas overflows from the high pressure side to the low pressure side. The cylinder cannot complete the suction and exhaust at this time, so the cylinder does not work at this time.

The structure can be used in two-cylinder, three-cylinder and single-cylinder modes, and its combination can create double-cylinder varactor, double-stage to single-cylinder, multi-cylinder varactor, three-cylinder double-stage varactor, three-cylinder single-stage double-varactor In the form of a pump body, etc., when used in ordinary cooling conditions, the low-pressure gas can be passed through the variable volume port to make the cylinder not work, saving energy consumption. When it is used in extreme or heating mode, the variable volume port is opened The high-pressure gas makes the cylinder function, increasing the displacement of the single machine to improve the heating effect, and significantly improves the heating capacity in extreme areas.

For its articulated form, when low-pressure gas is supplied into the volume-changing channel, the volume-changing slide will not hit the roller due to the tension of the spring and produce a clicking sound with the liquid impact. When the high-pressure gas is filled in the volume-changing channel, when it encounters the liquid-bearing working condition, since its head has no force in the direction of the slider groove on the low-pressure side and the high-pressure side, it will not be opened by the hydraulic force. The sliding piece causes the sliding piece and the roller to separate and then hit together to produce a clicking sound. Even under very extreme conditions, the hydraulic force rushes away from the head of the variable-capacity slider. Because the volume of the variable-capacity slider in the entire slider is very small, the click noise generated by the impact of the roller is also very small. The overall solution for the improvement of the click sound is based on the articulated connection, so it can be greatly improved. And because of the articulated structure, the remaining gap volume at the end of exhaust is much smaller than the traditional spring type, which further improves the efficiency of the cylinder.

When the load of the compressor is not large under working conditions, the low-pressure gas can be compensated through the variable-volume port of the variable-volume channel to make the cylinder ineffective, so as to save energy and meet the use; when its cooling capacity is insufficient, the variable-volume port can be used The high-pressure gas is supplemented to make the cylinder function to increase the displacement of the compressor, and the enthalpy-increasing effect can further expand the scope of use and efficiency of the compressor. Its combination of variable frequency motor can meet a wider range of conditions and higher efficiency requirements.

In this embodiment, the supplementary air channel can be added to the rear of the sliding vane groove to meet the requirements of use. There is no additional structure for other parts of the pump body, and the process is highly feasible. Among them, the required variable volume refrigerant gas can come from the air conditioning system. The system controls the opening and closing of the cylinder to achieve the purpose of variable volume adjustment. The control is high and the reliability is strong. The mechanical components and processing accuracy requirements are in the existing It can be satisfied within the scope and can achieve the effect of solving various problems at a lower cost.

As shown in Figure 14, when the articulated variable volume cylinder structure is used on a double-cylinder compressor, the upper cylinder is a normal articulated cylinder, the lower cylinder is an articulated variable volume cylinder, both cylinders have an intake path, and the lower cylinder slide groove There is a path to change volume. Except for the replacement of the cylinder, the structure of the other pump bodies is the same as that of the double-cylinder compressor. The existing compressor can be directly modified in process, with lower cost and better reliability.

In this example, the compressor's large liquid separator is a double-tube liquid separator, connecting the intake path to the suction ports of the two cylinders. There is a supplemental air channel at the sliding groove of the lower cylinder, which is connected to the system through a variable volume liquid separator. The system controls whether the compressor is turned on to change volume. Since the variable volume passage does not allow leakage channels in the axial direction of the crankshaft, it is necessary to perform corresponding sealing treatment on the variable volume channel of the lower cylinder.

Specifically, first, the intake passage comes from the large liquid separator, and the cylinder is sealed by the partition plate and the lower flange through the end faces to seal the volume-changing gas introduced at the volume-changing air inlet, which is mainly performed on the slider groove in the axial direction Sealing, there is no sliding slot with the tail part leaking out of the partition and the sealing range of the lower flange to ensure the strictness of the volume change. When the low-pressure gas from the system is introduced into the air inlet of the supplemental gas channel, the gas enters the closed space at the tail of the hinged slider. In this space, due to the sealing effect of the partition plate and the lower flange, the gas can only Entering the tail of the varactor slide from the vent hole, because the hinged slide and the varactor slide are connected by a spring, under normal conditions, the varactor slide will be pulled back into the hinged slide by the spring force, and the air force is not enough to counteract The spring tension will cause the variable-capacity slider to be pulled back into the hinged slider by the spring tension even if low-pressure gas is introduced into the variable-capacity air inlet. When the head of the variable-capacity slider leaves the head of the hinged slider, the slider will form a leak channel in the cylinder, and the compressed high-pressure gas sucked from the intake port returns to the low pressure through the leak channel. The cylinder has no exhaust function, and the cylinder does not increase the overall displacement of the compressor. At this time, the upper cylinder is still compressing and exhausting under the action of the crankshaft. The compressor has only the displacement of the upper cylinder. This is the single cylinder mode. When the high-pressure gas is introduced into the variable-volume inlet, the gas acts on the tail of the variable-volume slider through the same path. When the high-pressure gas is sufficient to resist the spring force and push the variable-volume slider out of the groove of the hinged slider, its head can be hinged The sliding vane presses on the hinged roller. When the gas is drawn and compressed at the cylinder dispenser, the variable volume sliding vane will not leave the hinged roller due to the change in the relative position of the moving parts in the cylinder. In normal compression work, the overall displacement of the compressor becomes the sum of the displacement of the upper cylinder and the displacement of the lower cylinder. At this time, the working range of the compressor is adjusted by the system and the single cylinder is changed to a double cylinder. This is the structure The principle of variable volume when used on a compressor.

Not only limited to the above example of the two-cylinder mode, the present invention can be used in three-cylinder double-stage variable displacement, double-stage to single-cylinder, multi-cylinder variable displacement and other forms, from this structure can be derived from a more compact compressor form Combined with the characteristics of articulation, it can greatly improve the performance under extreme heating conditions and solve the long-slaps that have troubled the rotor compressor field. This structure also has good support for manufacturability and quality control. Its structure is simple and the control logic is clear It is easy to implement and has good reliability. It is suitable for many structures of rotor compressors and is easy to promote and implement.

In addition to the above, what needs to be explained is "one embodiment", "another embodiment", "embodiment", etc., referred to in this specification, which refers to the specific features, structures or Features are included in at least one embodiment described broadly in this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Further, when a specific feature, structure, or characteristic is described in conjunction with any of the embodiments, it is claimed that such feature, structure, or characteristic in combination with other embodiments also falls within the scope of the present invention.

In the above embodiments, the description of each embodiment has its own emphasis. For a part that is not detailed in an embodiment, you can refer to related descriptions in other embodiments.

The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

A sliding plate structure is characterized by comprising:

A hinged slide (10), the first end of the hinged slide (10) is used to hinge with the roller, the hinge slide (10) has a receiving cavity (11) in the middle, and the hinged slide (10) 10) A vent hole (12) communicating with the accommodating cavity (11) is provided;

A variable volume slide assembly (20), the variable volume slide assembly (20) is movably disposed in the containing cavity (11), and enters the containing cavity (11) through the vent hole (12) Passing refrigerant can make the variable-capacity sliding vane assembly (20) have a working position connected to the roller, or the variable-capacity sliding vane assembly (20) can be arranged at a distance from the roller Unload location.
The sliding plate structure according to claim 1, wherein the variable volume sliding plate assembly (20) comprises:

A variable volume slide (21), the variable volume slide (21) is movably disposed in the accommodating cavity (11);

An elastic member (22), a first end of the elastic member (22) is connected to the tail of the variable volume slide (21), a second end of the elastic member (22) is connected to the accommodating cavity (11) ) Is connected to the cavity wall, and the refrigerant is passed into the accommodating cavity (11) through the vent hole (12), so that the head of the variable-volume slider (21) can be connected to the roller Working position, or the unloading position of the head of the variable volume slide (21) and the roller can be set at a distance.
The sliding plate structure according to claim 2, wherein when the elastic member (22) is in a natural state, the head of the variable volume sliding plate (21) is located at the unloading position.
The slide structure according to claim 2, characterized in that the profile of the head of the variable volume slide (21) is the same as the profile of the first end of the hinge slide (10), when When the varactor slide (21) is in the unloading position, the head of the varactor slide (21) is located outside the accommodating cavity (11), and the head of the varactor slide (21) It is set at a distance from the roller.
The sliding plate structure according to claim 2, characterized in that the width of the head of the variable volume slide (21) is smaller than the width of the accommodating cavity (11), when the variable volume slide (21) When in the unloading position, the head of the variable volume slide (21) is located in the receiving cavity (11).
The sliding plate structure according to claim 2, wherein the variable volume sliding plate (21) comprises:

A variable-capacity slider body (211), one end of the variable-capacity slider body (211) is connected to the elastic member (22);

A slider head (212), the slider head (212) has a columnar structure, the slider head (212) is connected to the other end of the variable volume slider body (211), and the variable The sliding vane body (211) is connected to the roller through the sliding vane head (212), and the axis of the sliding vane head (212) is along the width direction of the variable sliding vane body (211) Extended settings.
The sliding plate structure according to claim 6, wherein the hinged sliding plate (10) comprises:

Slide body (13);

A first connecting body (14), the first connecting body (14) has a columnar structure, and one side of the first connecting body (14) is connected to the first end of the slider body (13);

A second connecting body (15), the second connecting body (15) has a columnar structure, one side of the second connecting body (15) is connected to the first end of the slider body (13) and connected with The first connecting body (14) is arranged at intervals, and the accommodating cavity (11) is opened in the slider body ((1) between the first connecting body (14) and the second connecting body (15) 13), the first connector (14) and the second connector (15) are arranged coaxially, and the slider body (13) passes through the first connector (14) and the first The second connecting body (15) is hinged to the roller, and the axis of the slider head (212) is parallel to the axis of the first connecting body (14).
The sliding plate structure according to claim 7, characterized in that at least a part of the outer peripheral surface of the first connecting body (14) has a first arc shape, and at least the second connecting body (15) The outer peripheral surface of the part has a second arc shape, and the first arc shape is the same as the second arc shape.
The sliding plate structure according to claim 1, wherein the vent hole (12) is opened on an end surface of the second end of the hinged sliding plate (10).
A pump body assembly includes a sliding plate structure, wherein the sliding plate structure is the sliding plate structure according to any one of claims 1 to 9.
The pump body assembly of claim 10, wherein the pump body assembly comprises:

A variable volume cylinder (30), the variable volume cylinder (30) has a working cavity, and a cavity of the working cavity is provided with a sliding plate slot for accommodating the hinged sliding plate (10);

A roller (40), the roller (40) is disposed in the working cavity, and the hinged slider (10) of the slider structure is hinged with the roller (40);

A first plate body, the first plate body is connected to the first end of the variable volume cylinder (30);

A second plate body, the second plate body is connected to the second end of the variable volume cylinder (30), and the first plate body, the second plate body and the sliding plate groove are enclosed between Forming a closed accommodating space, the accommodating cavity (11) communicates with the accommodating space through the vent hole (12), wherein the first plate body, the second plate body and the variable volume cylinder At least one of (30) is provided with an air supplement channel.
The pump body assembly according to claim 11, characterized in that when high-pressure refrigerant is passed into the accommodating space through the supplementary air passage, the variable volume sliding assembly (20) can be made to slide The sheet (21) is located at the working position. When low-pressure refrigerant is introduced into the accommodating space through the supplemental air passage, the variable-volume slider (21) of the variable-volume slider assembly (20) can be located The unloading location.
The pump body assembly according to claim 12, characterized in that when the variable volume slide (21) is in the unloading position, the head of the variable volume slide (21) and the roller ( 40) A passage is formed between the suction chamber and the compression chamber of the working chamber.
The pump body assembly of claim 11, wherein the pump body assembly further comprises:

A fixed volume cylinder (50), the fixed volume cylinder (50) is located on one side of the variable volume cylinder (30), and the crankshaft of the pump body assembly passes through the fixed volume cylinder (50) and the variable volume in turn Capacity cylinder (30) setting;

A fixed-volume roller (60), which is arranged in the fixed-volume cylinder (50);

A fixed-volume slide (70), the fixed-volume slide (70) is disposed in the fixed-volume cylinder (50) and is hinged with the fixed-volume roller (60).
The pump body assembly of claim 14, wherein:

The suction port of the fixed volume cylinder (50) and the suction port of the variable volume cylinder (30) are independently provided, and the exhaust port of the fixed volume cylinder (50) and the variable volume cylinder (30) The vents are set independently; or

The exhaust port of the variable volume cylinder (30) communicates with the intake port of the fixed volume cylinder (50).
The pump body assembly according to claim 14, wherein at least one of the variable volume cylinder (30) and the fixed volume cylinder (50) is plural.
A compressor includes a pump body assembly, wherein the pump body assembly is the pump body assembly of any one of claims 1 to 16.