CN216554393U - Variable-volume rotor type compressor and air conditioner - Google Patents

Abstract

The utility model provides a variable-capacity rotor compressor and an air conditioner, wherein the variable-capacity rotor compressor comprises a first compression part, the first compression part comprises a first cylinder body, a first sliding sheet groove is formed in the first cylinder body, a first sliding sheet is arranged in the first sliding sheet groove, the position of the first sliding sheet can be locked, after the first sliding sheet is unlocked, the head part of the first sliding sheet can be abutted against the outer peripheral wall of a first roller, a variable-capacity channel is further formed in the first cylinder body, and the channel outlet of the variable-capacity channel is over against the tail end face of the first sliding sheet. According to the utility model, the impact force of the high-pressure air flow can act on the tail end face of the first sliding piece approximately vertically and does not act on the side wall of the sliding fit between the first sliding piece and the groove wall of the first sliding piece groove, so that the eccentric wear problem between the first sliding piece and the first sliding piece groove under the action of lateral unbalanced impact force can be effectively prevented, the friction force between the first sliding piece and the first sliding piece groove is reduced during the operation of the first sliding piece, and the sliding piece can operate more stably.

Description

Variable-volume rotor type compressor and air conditioner

Technical Field

The utility model belongs to the technical field of air conditioning, and particularly relates to a variable-capacity rotor type compressor and an air conditioner.

Background

The variable volume condition and route design of the existing variable volume rotor compressor (specifically taking 55 series as an example) is shown in fig. 1 and fig. 2, after a single cylinder (upper cylinder) of the compressor normally operates, a high-pressure environment of a refrigeration system is generated, high-pressure gas is utilized, part of high-pressure refrigerant gas enters a variable volume channel through the control of an electromagnetic valve, a pin of a lower cylinder sliding sheet clamped in an initial state is downward under the high-pressure environment, and then the variable volume sliding sheet starts to move (is abutted against a roller) to participate in compression work according to the high-pressure environment of the lower cylinder variable volume channel and the lower crankshaft part and the roller which move all the time; in the working principle, the variable-volume channel is of great importance, the structure of the variable-volume channel is complex and tortuous, the variable-volume channel is difficult to fully utilize and control high-pressure gas although the variable-volume channel is in accordance with the existing installation welding process, the high-frequency operation in the variable-volume compressor is not stable, and more importantly, as shown in fig. 3, the high-pressure gas (refrigerant) input laterally impacts the side surface of the sliding vane in operation, so that the sliding vane and the sliding vane groove are seriously abraded (the part circled in the drawing).

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a variable capacity rotor type compressor and an air conditioner, which can overcome the defect that the side surface of a slide sheet is stressed by a high-pressure refrigerant for control entering from the side surface of the slide sheet in the related technology, so that the contact stress between the slide sheet and a slide sheet groove is uneven and the slide sheet is seriously abraded.

In order to solve the above problems, the present invention provides a variable capacity rotor compressor, including a first compression part, where the first compression part includes a first cylinder, the first cylinder has a first vane groove, a first vane is disposed in the first vane groove, a position of the first vane can be locked, a head of the first vane can abut against an outer peripheral wall of a first roller after the first vane is unlocked, the first cylinder is further configured with a variable capacity passage, and a passage outlet of the variable capacity passage faces a tail end surface of the first vane.

In some embodiments, the varactor channel extends along a direction of extension of the first vane.

In some embodiments, the varactor channels are circular in cross-section.

In some embodiments, the variable capacity rotor compressor includes a casing, a variable capacity liquid distributor is connected to a channel inlet of the variable capacity channel, an air outlet pipe of the variable capacity liquid distributor includes a first pipe section extending in an axial direction of the casing, a second pipe section extending in a radial direction of the casing, and the first pipe section and the second pipe section are communicated through a third pipe section, wherein the second pipe section is connected to the channel inlet and is projected on a radial section of the casing, and a space exists between the first pipe section and the second pipe section.

In some embodiments, the housing is configured with a first air suction port, a second air suction port and a variable-volume port corresponding to the variable-volume channel, and the first air suction port, the second air suction port and the variable-volume port are formed by punching at one time.

In some embodiments, the gas outlet pipe is a copper pipe, and the second pipe section and the variable-volume port are welded by gas welding by using a copper wire as a welding flux.

In some embodiments, a free end of the third tube segment extends into the variable-volume channel and does not protrude beyond a channel outlet of the variable-volume channel.

In some embodiments, the varactor channel extends for a length of 5 mm.

The utility model also provides an air conditioner which comprises the variable capacity rotor type compressor.

According to the variable capacity rotor type compressor and the air conditioner, the high-pressure airflow flowing out of the channel outlet can be over against the tail end face of the first sliding piece, so that the impact force of the high-pressure airflow can be approximately vertically applied to the tail end face of the first sliding piece and can not be applied to the side wall of the first sliding piece in sliding fit with the groove wall of the first sliding piece groove, the eccentric wear problem between the first sliding piece and the first sliding piece groove under the action of lateral unbalanced impact force can be effectively prevented, the friction force between the first sliding piece and the first sliding piece groove during the operation of the first sliding piece is reduced, and the sliding piece can operate more stably.

Drawings

Fig. 1 is a schematic external structural view (i.e., before structural improvement) of a variable capacity rotor type compressor in the prior art;

fig. 2 is a schematic structural view of the cylinder (generally, a lower cylinder) in fig. 1, in which arrows show the flow direction of high-pressure gas for volume change;

FIG. 3 is a schematic diagram of an eccentric wear condition of a sliding vane in the cylinder of FIG. 1 caused by lateral high pressure gas;

fig. 4 is a schematic perspective view of the variable-volume liquid distributor of fig. 1;

fig. 5 is a schematic external structural view (i.e., after structural improvement) of a variable capacity rotor type compressor according to an embodiment of the present invention;

FIG. 6 is a schematic perspective view of the first cylinder of FIG. 5;

fig. 7 is a schematic perspective view of the variable capacity liquid distributor in fig. 5.

The reference numerals are represented as:

11. a first cylinder; 111. a first slide groove; 12. a first slip sheet; 13. a variable-volume channel; 2. a variable volume liquid separator; 20. a dispenser body; 21. a first tube section; 22. a second tube section; 23. a third tube section; 100. a housing; 101. a first air intake port; 102. a second air suction port; 103. a variable volume port; 200. a gas-liquid separator.

Detailed Description

Referring to fig. 1 to 7 in combination, according to an embodiment of the present invention, there is provided a variable capacity rotor compressor, including a first compression part (not shown) and a second compression part (not shown), wherein the first compression part is a variable capacity compression part, the first compression part includes a first cylinder 11, the first cylinder 11 has a first vane groove 111, a first vane groove 12 is provided in the first vane groove 111, the first vane groove 12 can be locked to release a compression effect of the first compression part, a head of the first vane groove 12 can abut against an outer peripheral wall of a first roller after the first vane groove 12 is unlocked, so as to achieve the compression effect of the first compression part, a variable capacity channel 13 is further configured on the first cylinder 11, a channel outlet of the variable capacity channel 13 faces an end face of a tail of the first vane groove 12, it is understood that the facing direction means that the high-pressure airflow from the passage outlet can act approximately perpendicularly on the trailing end face of the first vane groove 12, and no longer act on the side wall of the first vane groove 12 that is in sliding engagement with the groove wall of the first vane groove 111. In the technical scheme, the high-pressure airflow flowing out of the channel outlet can be over against the tail end face of the first sliding sheet groove 12, so that the impact force of the high-pressure airflow can be approximately vertically applied to the tail end face of the first sliding sheet groove 12 and is not applied to the side wall of the first sliding sheet groove 12 in sliding fit with the groove wall of the first sliding sheet groove 111 any more, the eccentric wear problem between the first sliding sheet groove 12 and the first sliding sheet groove under the action of lateral unbalanced impact force is effectively prevented, the friction force between the first sliding sheet groove 12 and the first sliding sheet groove 111 is reduced when the first sliding sheet groove 12 operates, and the sliding sheet operates more stably.

Furthermore, the variable-volume channel 13 extends along the extending direction of the first sliding piece 12, that is, the variable-volume channel 13 is a straight pipe channel, preferably, the cross section of the variable-volume channel 13 is circular, so that the processing is easier, the reliability is high, and the test data such as the flow velocity, the flow rate and the pressure of the air supply can be calculated, controlled and detected conveniently during the test. The caliber of the variable volume channel 13 can be reasonably adjusted according to the difference of the refrigerant refrigeration effect and the pressure thereof. Compared with a variable-volume channel in the prior art, the technical scheme has the advantages that the variable-volume channel is easier to process and control, and the regulation and control of the inner diameter of the variable-volume channel are beneficial to the lifting of the high-pressure gas control pin of each frequency band in the operation of the compressor. The air inlet route (shown in figure 3) of the conventional variable-capacity lower cylinder is difficult to control, the mode of increasing efficiency and reducing noise is expansion in the front edge, and the expansion part is displayed in a relatively complex variable-capacity channel, so that the situation that high-pressure gas cannot be fully utilized due to the structural factor of an auxiliary variable-capacity channel in the variable-capacity compressor can be obtained. On the basis of the variable-volume channel in the prior art, the variable-volume channel is obtained after the variable-volume channel is rotated clockwise by 16 degrees towards one side close to the slide sheet groove, and because the direct action of the variable-volume channel on the force bearing surface of the slide sheet is enhanced, the diameter of a copper pipe can be further increased, the direct impact of high-pressure gas is relieved according to the pressure required by the switching of a single double cylinder of the compressor, and the refrigerating efficiency of the compressor is improved.

In some embodiments, the variable capacity rotor compressor includes a casing 100, a variable capacity liquid separator 2 is connected to a channel inlet of the variable capacity channel 13, the variable capacity liquid separator 2 includes a liquid separator main body 20, the liquid separator main body 20 has an inlet pipe and an outlet pipe, the outlet pipe of the variable capacity liquid separator 2 includes a first pipe section 21 extending along an axial direction of the casing 100, a second pipe section 22 extending along a radial direction of the casing 100, the first pipe section 21 and the second pipe section 22 are communicated with each other through a third pipe section 23, wherein the second pipe section 22 is connected to the channel inlet and is projected on a radial cross section of the casing 100, a space exists between the first pipe section 21 and the second pipe section 22, and the casing 100 is configured with a first suction port 101, a second suction port 102, and a variable capacity port 103 corresponding to the variable capacity channel 13. In this technical solution, on one hand, the length of the third pipe section 23 is matched with the size of the gap, so that the variable volume port 103 can be closer to the first suction port 101 and the second suction port 102; on the other hand, the third pipe section 23 can also make the connection position of the variable volume liquid separator 2 on the casing 100 more flexible, effectively prevent the interference between the variable volume liquid separator 2 and the gas-liquid separator 200 on the casing 100, and facilitate the welding process of components and pipelines. It can be understood that the first pipe section 21 and the third pipe section 23, and the second pipe section 22 and the third pipe section 23 are connected by using bent pipes, so that the fluid resistance is reduced.

Because the variable volume port 103 is closer to the first air inlet 101 and the second air inlet 102, the first air inlet 101, the second air inlet 102 and the variable volume port 103 can be formed by punching at one time, and compared with the process of punching the first air inlet 101 and the second air inlet 102 together and punching the variable volume port 103 separately in the prior art, the punching process of three holes is simplified in the technical scheme, and the manufacturing cost is reduced.

The gas outlet pipe is a copper pipe, correspondingly, a copper wire is adopted between the second pipe section 22 and the variable-volume port 103 to be welded by gas welding (such as gas and oxygen gas specifically) and can bear pressure above 5Mpa, and therefore the structural design of the external pipeline of the compressor considers that the welding process (firmness degree) of the copper pipe meets the maximum pressure value of a high-frequency inner cavity when the double cylinders of the compressor run.

In some embodiments, the free end of the third tube section 23 extends into the volume-changing channel 13 and does not protrude beyond the channel outlet of the volume-changing channel 13, and in a specific implementation, the volume-changing channel 13 extends for a length of 5 mm.

According to the utility model, the air supply route is optimized, the air inlet route structure of the air cylinder (namely the first air cylinder) is simplified, so that the opening and high-frequency operation of the sliding sheet (namely the first sliding sheet 12) are better and more directly controlled; through the design of the elbow pipe (namely the air outlet pipe) at the air outlet end of the variable-volume liquid separator, the original welding structure and the distribution structure of the small liquid separators (namely the variable-volume liquid separators) are considered, so that the small-range change is realized, and an obvious effect is obtained.

According to an embodiment of the utility model, an air conditioner is also provided, which comprises the variable capacity rotor compressor.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a varactor rotor type compressor, its characterized in that, includes first compression portion, first compression portion includes first cylinder body (11), first gleitbretter groove (111) have on first cylinder body (11), be equipped with first gleitbretter (12) in first gleitbretter groove (111), the position of first gleitbretter (12) can be locked first gleitbretter (12) are relieved and are locked the back, the prelude of first gleitbretter (12) can be contradicted with the periphery wall of first roller, still be constructed varactor passageway (13) on first cylinder body (11), the passageway export of varactor passageway (13) is just to the afterbody terminal surface of first gleitbretter (12).

2. Compressor according to claim 1, characterized in that said variable-capacity channel (13) extends along the extension direction of said first vane (12).

3. Compressor according to claim 2, characterized in that the cross section of the variable-volume channels (13) is circular.

4. The variable capacity rotor compressor according to claim 1, comprising a casing (100), wherein a variable capacity liquid separator (2) is connected to a channel inlet of the variable capacity channel (13), a second tube section (22) extends in a radial direction of the casing (100) and a first tube section (21) extends in an axial direction of the casing (100), and a second tube section (22) extends in the radial direction of the casing (100), wherein the first tube section (21) and the second tube section (22) are communicated with each other through a third tube section (23), wherein the second tube section (22) is connected to the channel inlet, and a space is formed between the first tube section (21) and the second tube section (22) when projected on a radial section of the casing (100).

5. The variable capacity rotor compressor according to claim 4, wherein the casing (100) is configured with a first suction port (101), a second suction port (102), and a variable capacity port (103) corresponding to the variable capacity channel (13), and the first suction port (101), the second suction port (102), and the variable capacity port (103) are formed by punching at a time.

6. The variable capacity rotor compressor according to claim 5, wherein the gas outlet pipe is a copper pipe, and the second pipe section (22) and the variable capacity port (103) are welded by gas welding by using a copper wire as a welding flux.

7. Compressor according to claim 4, characterized in that the free end of the third pipe section (23) protrudes into the positive-displacement channel (13) and does not protrude beyond the channel outlet of the positive-displacement channel (13).

8. Compressor according to claim 7, characterized in that the variable-capacity channel (13) has an extension of 5 mm.

9. An air conditioner characterized by comprising the variable capacity rotor type compressor of any one of claims 1 to 8.

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