CN114776559A - Pump body subassembly, compressor and air conditioner - Google Patents

Pump body subassembly, compressor and air conditioner Download PDF

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Publication number
CN114776559A
CN114776559A CN202210482076.7A CN202210482076A CN114776559A CN 114776559 A CN114776559 A CN 114776559A CN 202210482076 A CN202210482076 A CN 202210482076A CN 114776559 A CN114776559 A CN 114776559A
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China
Prior art keywords
hole
air passing
passing hole
silencer
exhaust
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Application number
CN202210482076.7A
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Chinese (zh)
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CN114776559B (en
Inventor
李自好
张洪玮
彭慧明
罗蔼玉
韩鑫
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Gree Electric Appliances Inc of Zhuhai
Zhuhai Landa Compressor Co Ltd
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Gree Electric Appliances Inc of Zhuhai
Zhuhai Landa Compressor Co Ltd
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Priority to CN202210482076.7A priority Critical patent/CN114776559B/en
Publication of CN114776559A publication Critical patent/CN114776559A/en
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Publication of CN114776559B publication Critical patent/CN114776559B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027Pulsation and noise damping means
    • F04B39/0083Pulsation and noise damping means using blow off silencers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention provides a pump body assembly, a compressor and an air conditioner, wherein the pump body assembly comprises: silencer and flange, the silencer includes outer silencer, inlayer silencer and auto-change over device, and switching hole system on the inlayer silencer can form first exhaust passage and second exhaust passage between inlayer silencer and outer silencer, and auto-change over device can cooperate so that the exhaust gas flow of the gas vent exhaling from the flange is discharged from the exhaust hole of outer silencer through first exhaust passage and/or second exhaust passage according to the operating frequency of compressor and switching hole system. According to the invention, the performance is not influenced while the low-frequency noise is processed, and the high-frequency noise can be enhanced; make the compressor simultaneously can carry out muffler amortization cavity volume and air current mode of flow change according to different needs in the operation process, carry out the maximum processing to the noise, can use in more frequencies of compressor and operating mode, the bigger degree utilizes variable frequency compressor, brings better comfort for the customer.

Description

Pump body subassembly, compressor and air conditioner
Technical Field
The invention belongs to the technical field of refrigeration setting, and particularly relates to a pump body assembly, a compressor and an air conditioner.
Background
The exhaust of the compressor needs a silencer for noise treatment, and the corresponding silencer needs to be designed, so that the silencer can be designed for one type at present and is matched with the silencer for noise treatment. However, the exhaust volumes and exhaust speeds of the variable frequency compressors corresponding to different frequencies and different working conditions are different, the same type of silencer is difficult to process exhaust noise under various working conditions, so that the noise is too large under certain frequencies and working conditions, the sound is difficult to hear, the system can only shield the frequency band and the working conditions, and the silencer in the current state mainly causes the following contradictions which are difficult to solve:
when the single-layer silencer is used, the noise processing capacity of the compressor is poor when the compressor runs at high frequency, so that the high-frequency noise of the compressor is large; when a double muffler is used, the compressor performance at low frequencies is affected due to the long circuit of the exhaust gas in the muffler.
Disclosure of Invention
Therefore, the invention provides a pump body assembly, a compressor and an air conditioner, which can solve the technical problem that the existing silencer cannot adjust the noise processing capacity along with the running frequency of the compressor.
In order to solve the above problems, the present invention provides a pump body assembly including:
muffler and flange, the muffler sets up on the flange, the gas vent has been seted up on the flange, the muffler includes outer muffler, inlayer muffler and auto-change over device, the inlayer muffler sets up the inside at outer muffler, switching hole system has been seted up on the inlayer muffler, be provided with the exhaust hole on the outer muffler, switching hole system can form first exhaust passage and second exhaust passage between inlayer muffler and outer muffler, auto-change over device can cooperate so that the gas vent combustion gas flows through and is discharged from the exhaust hole by first exhaust passage and/or second exhaust passage according to the running frequency of compressor with switching hole system, the length of first exhaust passage circulating route is greater than the length of second exhaust passage circulating route.
In some embodiments of the present invention, the,
the switching hole comprises a first air passing hole and a second air passing hole, and the switching device has a first blocking state for closing the first air passing hole and opening the second air passing hole, a second blocking state for opening the first air passing hole and closing the second air passing hole, and a full communication state for simultaneously opening the first air passing hole and the second air passing hole.
In some embodiments of the present invention, the,
the second air passing hole and the exhaust hole are coaxially arranged.
In some embodiments of the present invention, the,
the exhaust port is arranged on the flange at a position corresponding to the second air passing hole.
In some embodiments of the present invention, the,
a partition plate is arranged between the inner layer silencer and the outer layer silencer and between the first air passing hole and the second air passing hole to form a first exhaust channel and a second exhaust channel.
In some embodiments of the present invention, the,
the switching device comprises a first plugging part and a second plugging part which can be linked with the first plugging part, the first plugging part is arranged at a position corresponding to the first air passing hole, the second plugging part is arranged at a position corresponding to the second air passing hole, when the switching device is in a second plugging state, the first plugging part plugs the first air passing hole, and the second plugging part opens the second air passing hole; when the switching device is in the first plugging state, the first plugging part opens the first air passing hole, and the second plugging part plugs the second air passing hole; when the switching device is in a full-communication state, the first plugging portion opens the first air passing hole, and the second plugging portion opens the second air passing hole.
In some embodiments of the present invention, the,
first shutoff portion sets up in the inside of inlayer muffler, and second shutoff portion sets up in the outside of inlayer muffler, and one side that second shutoff portion orientation inlayer muffler is connected with the first end of first connecting rod, and the second end of first connecting rod extends to the inside of inlayer muffler via the second air vent, and first shutoff portion is connected through the second connecting rod with the second end of first connecting rod.
In some embodiments of the present invention, the,
the radius of the second plugging part is not more than that of the exhaust hole; and/or a chamfer is arranged at the joint of the second blocking part and the first connecting rod so as to form a conical structure at the joint, and the maximum radius of the conical structure is not greater than the radius of the second air passing hole.
In some embodiments of the present invention, the,
one side of the first plugging part, which is far away from the inner layer silencer, is provided with a driving rod.
In some embodiments of the present invention, the,
the flange is provided with a pneumatic hole, the driving rod is arranged in the pneumatic hole, and the axial movement of the driving rod in the pneumatic hole can be controlled by the air pressure change in the pneumatic hole.
In some embodiments of the present invention, the,
the driving rod is sleeved with an elastic component, and the elastic component is clamped between the flange and the first plugging portion.
The invention also provides a compressor, which comprises the pump body assembly.
The invention also provides an air conditioner which comprises the compressor.
In some embodiments of the present invention, the,
when the pneumatic hole is included, the pneumatic hole is communicated with the air conditioning system, the air conditioning system can form low pressure in the pneumatic hole when the compressor operates at high frequency, and form high pressure in the pneumatic hole when the compressor operates at low frequency.
According to the pump body assembly, the silencer can process high, medium and low frequency noises of the compressor in different modes, the exhaust resistance is small while the low frequency noise is processed, the performance is not influenced, and the high frequency noise can be reinforced; when the compressor operates at a frequency section between a low frequency and a high frequency, the flow rate of gas flowing through the first exhaust channel and the second exhaust channel can be flexibly adjusted, so that the volume of a silencer silencing cavity and the flow mode of gas can be changed according to different requirements in the operation process of the compressor, and noise is treated to the maximum extent.
In addition, the compressor and the air conditioner provided by the invention are manufactured based on the pump body assembly, and the beneficial effects of the pump body assembly are referred to.
Drawings
FIG. 1 is an exploded view of a muffler of a pump assembly according to an embodiment of the present invention;
FIG. 2 is a top view of a muffler of the pump body assembly of an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken at C-C of FIG. 2;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 5 is a cross-sectional view taken at B-B of FIG. 2; (ii) a
FIG. 6 is a cross-sectional view taken at D-D of FIG. 5;
fig. 7 is a schematic configuration diagram of a switching device of a muffler of a pump body assembly according to an embodiment of the present invention.
The reference numerals are represented as:
1. an outer muffler; 2. an inner muffler; 3. a switching device; 4. an exhaust hole; 5. a first air passing hole; 6. a second air passing hole; 7. a partition plate; 8. a first blocking portion; 9. a second blocking part; 10. a first link; 11. a second link; 12. a drive rod; 13. a pneumatic hole; 14. an elastic member; 15. a flange; 16. And (7) an exhaust port.
Detailed Description
Referring collectively to fig. 1-7, according to an embodiment of the present invention, there is provided a pump body assembly comprising:
silencer and flange 15, the muffler sets up on flange 15, gas vent 16 has been seted up on flange 15, the muffler includes outer muffler 1, inlayer muffler 2 and auto-change over device 3, inlayer muffler 2 sets up the inside at outer muffler 1, switching hole system has been seted up on inlayer muffler 2, be provided with exhaust hole 4 on outer muffler 1, switching hole system can form first exhaust passage and second exhaust passage between inlayer muffler 2 and outer muffler 1, auto-change over device 3 can cooperate so that the gas vent 16 combustion gas flows from exhaust hole 4 discharge by first exhaust passage and/or second exhaust passage according to the operating frequency of compressor with switching hole system, the length of first exhaust passage circulation path is greater than the length of second exhaust passage path.
In the embodiment, the switching hole system is arranged on the inner-layer silencer 2 of the double-layer silencer, the first exhaust passage and the second exhaust passage are formed between the inner-layer silencer 2 and the outer-layer silencer 1, the switching device 3 can be matched with the switching hole system according to the operating frequency of the compressor so that the air flow discharged by the exhaust port 16 is discharged from the exhaust hole 4 through the first exhaust passage and/or the second exhaust passage, the compressor can meet the requirement of processing noise when operating at low frequency, and simultaneously, the air flow is completely discharged through the second exhaust passage with shorter flow path length, so that the exhaust resistance is reduced, the air flow is completely discharged through the first exhaust passage with longer flow path length when operating at high frequency, the processing on the high-frequency noise of the compressor is enhanced, and the air flow can partially flow out through the first exhaust passage when the compressor operates at the frequency section between the low frequency and the high frequency, the part flows out through the second exhaust passage, and the air flow passing through the first exhaust passage and the second exhaust passage can be flexibly adjusted.
The low frequency of the invention can be 10-38Hz, the high frequency can be 88-120Hz, and the frequency range between the low frequency and the high frequency can be 40-86Hz, and the invention can be adjusted adaptively in practical application.
Therefore, the silencer can process high, medium and low frequency noises of the compressor in different modes, the exhaust resistance is small while the low frequency noise is processed, the performance is not influenced, and the high frequency noise can be reinforced; when the compressor operates in a frequency section between low frequency and high frequency, the air flow passing through the first exhaust passage and the second exhaust passage can be flexibly adjusted, so that the volume of a silencer silencing cavity and the air flow flowing mode of the compressor can be changed according to different requirements in the operation process, and the noise is treated to the maximum extent.
In some embodiments of the present invention, the,
the switching hole comprises a first air passing hole 5 and a second air passing hole 6, and the switching device 3 has a first blocking state for closing the first air passing hole 5 and opening the second air passing hole 6, a second blocking state for opening the first air passing hole 5 and closing the second air passing hole 6, and a full communication state for simultaneously opening the first air passing hole 5 and the second air passing hole 6.
The switching hole system of the embodiment comprises a first air passing hole 5 and a second air passing hole 6, the first air passing hole 5 and the second air passing hole 6 are arranged on the inner layer silencer 2, and the switching device 3 can be switched to a first blocking state for closing the first air passing hole 5 and opening the second air passing hole 6 when the compressor runs at a low frequency so as to open the first exhaust channel; the switching device 3 can be switched to a second blocking state for opening the first air passing hole 5 and closing the second air passing hole 6 when the compressor runs at a high frequency so as to open the second exhaust channel; the switching device 3 can be switched to a full-communication state of simultaneously opening the first air passing hole 5 and the second air passing hole 6 when the compressor operates in a frequency band between the low frequency and the high frequency so as to simultaneously open the first exhaust passage and the second exhaust passage.
In some embodiments of the present invention, the,
the second air passing hole 6 is coaxially arranged with the exhaust hole 4.
The second air passing hole 6 and the exhaust hole 4 of the present embodiment are coaxially arranged, so that the second exhaust channel is shortest, and when the compressor operates at a low frequency, the noise is treated, and the exhaust resistance is reduced to the greatest extent.
In some embodiments of the present invention, the,
the exhaust port 16 is arranged on the flange 15 at a position corresponding to the second air passing hole 6.
The exhaust port 16 is arranged at the position, corresponding to the second air passing hole 6, on the flange 15, the length of the second exhaust channel can be further reduced, the requirement of processing noise can be met when the compressor operates at low frequency, meanwhile, the air flow is completely exhausted through the second exhaust channel with the short length, and the exhaust resistance is further reduced.
In some embodiments of the present invention, the,
a partition plate 7 is arranged between the inner silencer 2 and the outer silencer 1, and the partition plate 7 is arranged between the first air passing hole 5 and the second air passing hole 6 to form a first exhaust channel and a second exhaust channel.
The baffle 7 is arranged between the inner silencer 2 and the outer silencer 1, the baffle 7 is arranged between the first air passing hole 5 and the second air passing hole 6, concretely, the first air passing hole 5 and the second air passing hole 6 are arranged next to each other, and the baffle 7 is arranged between the first air passing hole 5 and the second air passing hole 6, so that the baffle 7 can separate the inner space of the silencer to form a first exhaust passage and a second exhaust passage, and the first exhaust passage is made to go round along the inner circumference of the outer silencer 1, the length of the first exhaust passage is increased, and the silencing effect of the silencer is improved.
In some embodiments of the present invention, the,
the switching device 3 comprises a first blocking part 8 and a second blocking part 9 which can be linked with the first blocking part 8, the first blocking part 8 is arranged at a position corresponding to the first air passing hole 5, the second blocking part 9 is arranged at a position corresponding to the second air passing hole 6, when the switching device is in a second blocking state, the first blocking part 8 blocks the first air passing hole 5, and the second blocking part 9 opens the second air passing hole 6; when the switching device is in the first plugging state, the first plugging part 8 opens the first air passing hole 5, and the second plugging part 9 plugs the second air passing hole 6; when the switching device is in the full-communication state, the first blocking portion 8 opens the first air passing hole 5, and the second blocking portion 9 opens the second air passing hole 6.
The switching device 3 of the embodiment comprises a first blocking part 8 and a second blocking part 9 which can be linked with the first blocking part 8, wherein the first blocking part 8 is arranged at a position corresponding to the first air passing hole 5, the second blocking part 9 is arranged at a position corresponding to the second air passing hole 6, when the switching device is in a second blocking state, the first blocking part 8 blocks the first air passing hole 5, and the second blocking part 9 opens the second air passing hole 6; when the switching device is in the first blocking state, the first blocking part 8 opens the first air passing hole 5, and the second blocking part 9 blocks the second air passing hole 6; when the switching device is in a fully-communicated state, the first blocking portion 8 opens the first air passing hole 5, and the second blocking portion 9 opens the second air passing hole 6, so that the switching device 3 and the switching hole are matched to enable the air flow to flow out of the air exhaust hole 4 to the outer side of the outer-layer silencer 1 through the first exhaust channel and/or the second exhaust channel.
In some embodiments of the present invention, the,
first shutoff portion 8 sets up in the inside of inlayer muffler 2, and second shutoff portion 9 sets up in the outside of inlayer muffler 2, and second shutoff portion 9 is connected with the first end of first connecting rod 10 towards one side of inlayer muffler 2, and the second end of first connecting rod 10 extends to the inside of inlayer muffler 2 via second air passing hole 6, and first shutoff portion 8 is connected through second connecting rod 11 with the second end of first connecting rod 10.
The inside at inlayer muffler 2 is set up to first shutoff portion 8 of this embodiment, second shutoff portion 9 sets up in the outside of inlayer muffler 2, second shutoff portion 9 is connected with the first end of first connecting rod 10 towards one side of inlayer muffler 2, the second end of first connecting rod 10 extends to the inside of inlayer muffler 2 via second air passing hole 6, first shutoff portion 8 is connected through second connecting rod 11 with the second end of first connecting rod 10, in order to realize the linkage of first shutoff portion 8 and second shutoff portion 9.
In some embodiments of the present invention, the,
the radius of the second plugging part 9 is not more than that of the exhaust hole 4; and/or a chamfer is arranged at the joint of the second blocking part 9 and the first connecting rod 10 so as to form a conical structure at the joint, and the maximum radius of the conical structure is not larger than that of the second air passing hole 6.
The radius of the second blocking part 9 of the embodiment is smaller than that of the exhaust hole 4, so that the second blocking part 9 is prevented from blocking the exhaust hole 4 when moving towards the exhaust hole 4, and the silencer cannot exhaust; and/or, second shutoff portion 9 and first connecting rod 10 junction are provided with the chamfer to form the toper structure in the junction, the gas flow that the second crosses gas pocket 6 that flows through can be adjusted gradually when second shutoff portion 9 removes to the toper structure, makes the muffler match wider amortization interval, and the biggest radius of toper structure is not more than the radius of second crossing gas pocket 6, makes second shutoff portion 9 laminating on inner muffler 2, can block up second crossing gas pocket 6.
In some embodiments of the present invention, the,
a driving rod 12 is arranged on one side of the first blocking part 8 far away from the inner silencer 2.
This embodiment is provided with the actuating lever 12 through keeping away from one side of inlayer muffler 2 at first shutoff portion 8, through the first shutoff portion 8 of actuating lever drive and with the second shutoff portion 9 of first shutoff portion 8 linkage, realizes the amortization to different frequency sections.
In some embodiments of the present invention, the,
the flange 15 is provided with a pneumatic hole 13, the driving rod 12 is arranged in the pneumatic hole 13, and the axial movement of the driving rod 12 in the pneumatic hole 13 can be controlled by the air pressure change in the pneumatic hole 13.
The present embodiment has the driving rod 12 disposed in the pneumatic hole 13, and the driving rod 12 is axially moved in the pneumatic hole 13 by adjusting the air pressure in the pneumatic hole 13 to power the switching device 3.
The first blocking portion 8, the second blocking portion 9, the first link 10, the second link 11, and the driving lever 12 of the present invention may be of an integral structure or a separate structure.
In some embodiments of the present invention, the,
the driving rod 12 is sleeved with an elastic component 14, and the elastic component 14 is clamped between the flange 15 and the first blocking part 8.
In the embodiment, the elastic component 14 is sleeved on the driving rod 12, so that the switching device 3 can be reset to open the second exhaust channel when the pressure in the pneumatic hole 13 is low, and the exhaust resistance is reduced while the noise is treated corresponding to the low-frequency operation of the compressor.
The invention also provides a compressor, which comprises the pump body assembly.
The invention also provides an air conditioner which comprises the compressor.
In some embodiments of the present invention, the,
when the pneumatic hole 13 is included, the pneumatic hole 13 is communicated with an air conditioning system, which is capable of forming a low pressure in the pneumatic hole 13 when the compressor is operating at a high frequency and a high pressure in the pneumatic hole 13 when the compressor is operating at a low frequency.
The pneumatic hole 13 of the embodiment is communicated with an air conditioning system, the air conditioning system can form low pressure in the pneumatic hole 13 when the compressor operates at high frequency, and form high pressure in the pneumatic hole 13 when the compressor operates at low frequency, so as to provide power for the driving rod 12.
It should be noted that the introduced low-pressure refrigerant is from the air suction pipe (the pipeline above the liquid storage tank) of the compressor, the introduced high-pressure refrigerant is from the air discharge pipe, the refrigerant introduction at the air suction and air discharge position can be switched to control the high pressure and the low pressure, and the control can refer to the movement of the variable-volume compressor to control the variable-volume pin.
The three-way pipeline can be controlled to be switched by the frequency sensor, and the pipelines are respectively controlled to be opened and closed by a high-pressure pipeline and a low-pressure pipeline when the two pipelines flow into the pneumatic hole 13.
The air conditioner of the invention can be a variable frequency air conditioner.
The silencer of the invention has very simple design and assembly mode, the clapboard 7 is welded on the outer layer silencer 1 when being processed by manufacturers, the elastic part 14 and the switching device 3 are arranged on the flange before the silencer is arranged, and the inner layer silencer 2 is sleeved firstly. Then the silencer 1 is sleeved in the outer layer, and then the whole silencer is screwed on the connecting flange, the installation scheme is similar to the common double-layer silencer, and the whole silencer does not need to be changed greatly.
Introduction of an operation mode: when the compressor is started, the switching device 3 keeps the state shown in fig. 3, at the moment, the exhaust gas passes through the second air passing hole 6 and is directly discharged through the exhaust hole 4, at the moment, the exhaust resistance is small, and the noise elimination effect is proper. When the compressor needs high-frequency operation, the system is introduced into low-pressure gas of the circulation hole, the switching device 3 moves downwards, the first air passing hole 5 is opened at the moment, the second air passing hole 6 is closed, and the compressor exhausts gas through the first air passing hole 5, rotates for a circle in the middle of the inner-layer silencer and the outer-layer silencer, and then is exhausted from the exhaust hole 4, so that the silencing effect is enhanced.
In addition, the air compressor also comprises a state that the first air passing hole 5 and the second air passing hole 6 are opened simultaneously, and the state is that when the compressor operates in a frequency range between low frequency and high frequency, part of air flows can flow out through the first exhaust channel and part of air flows out through the second exhaust channel, and the air flow passing through the first exhaust channel and the second exhaust channel can be flexibly adjusted so as to adapt to more frequency ranges of the operation of the compressor.
Those skilled in the art will readily appreciate that the advantageous features of the above described modes can be freely combined, superimposed and combined without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalents 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 (14)

1. A pump body assembly, comprising:
silencer and flange (15), the muffler sets up on flange (15), gas vent (16) have been seted up on flange (15), the muffler includes outer muffler (1), inlayer muffler (2) and auto-change over device (3), inlayer muffler (2) set up the inside of outer muffler (1), switching hole system has been seted up on inlayer muffler (2), be provided with exhaust hole (4) on outer muffler (1), switching hole system can form first exhaust passage and second exhaust passage between inlayer muffler (2) and outer muffler (1), auto-change over device (3) can cooperate so that gas vent (16) combustion gas flow by first exhaust passage and/or second exhaust passage follow exhaust hole (4) are discharged according to the operating frequency of compressor with switching hole system, the length of the first exhaust passage flow path is greater than the length of the second exhaust passage flow path.
2. The pump body assembly of claim 1,
the switching hole system comprises a first air passing hole (5) and a second air passing hole (6), and the switching device (3) has a first blocking state for closing the first air passing hole (5) and opening the second air passing hole (6), a second blocking state for opening the first air passing hole (5) and closing the second air passing hole (6), and a full-communication state for simultaneously opening the first air passing hole (5) and the second air passing hole (6).
3. The pump body assembly of claim 2,
the second air passing hole (6) and the exhaust hole (4) are coaxially arranged.
4. Pump body assembly according to claim 2 or 3,
the exhaust port (16) is arranged on the flange (15) and corresponds to the second air passing hole (6).
5. The pump body assembly according to claim 2 or 3,
a partition plate (7) is arranged between the inner layer silencer (2) and the outer layer silencer (1), and the partition plate (7) is arranged between the first air passing hole (5) and the second air passing hole (6) to form the first exhaust channel and the second exhaust channel.
6. The pump body assembly of claim 2,
the switching device (3) comprises a first blocking part (8) and a second blocking part (9) which can be linked with the first blocking part (8), the first blocking part (8) is arranged at a position corresponding to the first air passing hole (5), the second blocking part (9) is arranged at a position corresponding to the second air passing hole (6), when the switching device is in a second blocking state, the first blocking part (8) blocks the first air passing hole (5), and the second blocking part (9) opens the second air passing hole (6); when the switching device is in a first blocking state, the first blocking part (8) opens the first air passing hole (5), and the second blocking part (9) blocks the second air passing hole (6); when the switching device is in a full-communication state, the first blocking part (8) opens the first air passing hole (5), and the second blocking part (9) opens the second air passing hole (6).
7. The pump body assembly of claim 6,
the first blocking portion (8) is arranged inside the inner layer silencer (2), the second blocking portion (9) is arranged outside the inner layer silencer (2), one side, facing the inner layer silencer (2), of the second blocking portion (9) is connected with the first end of a first connecting rod (10), the second end of the first connecting rod (10) extends to the inside of the inner layer silencer (2) through the second air passing hole (6), and the second end of the first connecting rod (10) is connected with the first end of the first connecting rod (8) through a second connecting rod (11).
8. The pump body assembly of claim 7,
the radius of the second plugging part (9) is not more than that of the exhaust hole (4); and/or a chamfer is arranged at the joint of the second blocking part (9) and the first connecting rod (10) so as to form a conical structure at the joint, and the maximum radius of the conical structure is not greater than the radius of the second air passing hole (6).
9. The pump body assembly of claim 6,
and a driving rod (12) is arranged on one side, away from the inner-layer silencer (2), of the first blocking part (8).
10. The pump body assembly of claim 9,
the flange (15) is provided with a pneumatic hole (13), the driving rod (12) is arranged in the pneumatic hole (13), and the driving rod (12) can be controlled to axially move in the pneumatic hole (13) by the change of air pressure in the pneumatic hole (13).
11. The pump body assembly of claim 9,
the driving rod (12) is sleeved with an elastic component (14), and the elastic component (14) is clamped between the flange (15) and the first blocking part (8).
12. A compressor, comprising a pump body assembly according to any one of claims 1 to 11.
13. An air conditioner characterized by comprising the compressor of claim 12.
14. The air conditioner according to claim 13,
when the pneumatic hole (13) is included, the pneumatic hole (13) is communicated with an air conditioning system, the air conditioning system can form low pressure in the pneumatic hole (13) when the compressor operates at a high frequency, and form high pressure in the pneumatic hole (13) when the compressor operates at a low frequency.
CN202210482076.7A 2022-05-05 2022-05-05 Pump body assembly, compressor and air conditioner Active CN114776559B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009127523A (en) * 2007-11-22 2009-06-11 Mitsubishi Heavy Ind Ltd Inverter-integrated electric compressor
CN206785648U (en) * 2017-05-26 2017-12-22 广东美芝精密制造有限公司 Rotary compressor and humidity control system
CN212690160U (en) * 2020-08-14 2021-03-12 无锡亿利环保科技有限公司 Dual mode muffler for an exhaust system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009127523A (en) * 2007-11-22 2009-06-11 Mitsubishi Heavy Ind Ltd Inverter-integrated electric compressor
CN206785648U (en) * 2017-05-26 2017-12-22 广东美芝精密制造有限公司 Rotary compressor and humidity control system
CN212690160U (en) * 2020-08-14 2021-03-12 无锡亿利环保科技有限公司 Dual mode muffler for an exhaust system

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