A new type of rotor compressor with flexible connection and direct air intake

Abstract

The present invention discloses a novel rotor compressor with flexible connection and direct air intake, comprising a casing, wherein a pump body is installed inside the casing through a plurality of elastic supporting parts, the pump body comprising a cylinder assembly, a crankshaft is sleeved on the cylinder assembly, and a motor is sleeved on the top of the crankshaft; the pump body also comprises a swinging or sliding rotor arranged in the cylinder assembly, and the rotor is sleeved on the crankshaft; the rotor is connected to the cylinder assembly through a sliding vane, and the rotor and the sliding vane divide the inner cavity of the cylinder assembly into a low-pressure chamber and a high-pressure chamber; the low-pressure chamber is connected to an intake silencer chamber through an air inlet passage, and the intake silencer chamber is connected to the shell intake pipe through an intake flexible connecting pipe; the high-pressure chamber is connected to the exhaust silencer chamber through an exhaust passage, and the exhaust silencer chamber is communicated with the inner cavity of the casing; the compressor has low vibration and low noise, and has excellent refrigeration and starting performances.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration compressors, and in particular to a new type of rotor compressor with flexible connection and direct air suction. Background Art

[0002] The compressor is a driven fluid machine that can boost low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. It sucks low-temperature and low-pressure refrigerant gas from the suction pipe, compresses it through the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle.

[0003] The various components on a fully sealed compressor are usually in rigid contact with each other, including the suction and exhaust pipes, various pipe joints, etc., which are all made of metal materials. As the compressor ages or works at full load for a long time, the compressor will vibrate violently and the rigidly connected components will directly bear the vibration, which will produce loud noise.

[0004] For example, the main bearing or cylinder block of the existing fully sealed rotor compressor is rigidly connected to the stator of the motor and the fully sealed housing, without a vibration damping and buffering structure, and the compressor has a large vibration noise. Due to the large vibration noise, the rotor compressor is usually used in air conditioning and commercial refrigeration. If you want to use it in a household refrigerator, you must change the existing structure.

[0005] For example, a Chinese invention patent (publication number: CN107461338B) disclosed a compressor in 2020, which includes: a compressor body and a flexible connection assembly, the compressor body includes an inner shell, an outer shell and at least one pump body component, the pump body component is located in the inner shell, and the inner shell is located in the outer shell, the flexible connection assembly includes an intake pipe and a flexible connector, the intake pipe passes through the inner shell and the outer shell to be connected to the pump body component, and the intake pipe is connected to the outer shell and / or the inner shell through a flexible connector; the compressor reduces the noise of the compressor through a flexible connection, but its flexible connection components are relatively large and the installation is complicated, and the intake pipe is directly connected to the pump body without any silencing measures between the two, and the direct connection structure is limited by the compressor model and is not suitable for use in a fully sealed rotor compressor. Summary of the invention

[0006] The purpose of the present invention is to provide a new type of rotor compressor with flexible connection and direct air intake in view of the problems existing in the prior art.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A new type of rotor compressor with flexible connection and direct air intake, comprising a casing, a pump body installed inside the casing, the pump body comprising a cylinder assembly, a crankshaft sleeved on the cylinder assembly, and a motor sleeved on the top of the crankshaft; the pump body also comprises a rotor arranged in the cylinder assembly, the rotor and the crankshaft sleeved; the rotor is connected to the cylinder assembly through a sliding vane, and the rotor and the sliding vane divide the inner cavity of the cylinder assembly into a low-pressure chamber and a high-pressure chamber; the low-pressure chamber is connected to an air suction muffler chamber through an air intake passage, and the air suction muffler chamber is connected to a shell air suction pipe through an air suction flexible connecting pipe; the exhaust chamber of the cylinder assembly (a part of the inner cavity of the cylinder assembly) is connected to the exhaust muffler chamber through an exhaust passage (on the cylinder assembly), the exhaust muffler chamber is connected to the internal high-pressure chamber of the casing (the inner cavity of the casing is in a high-pressure state when exhausting), and the internal high-pressure chamber of the casing is connected to the outside through the shell exhaust pipe on the casing to form a complete exhaust passage; the pump body (core) is connected to the casing through an elastic support member.

[0009] The compressor places the pump body consisting of the cylinder assembly, the crankshaft, the rotor, the motor, etc. on the elastic support member to avoid noise vibration from being directly transmitted to the casing, thereby reducing noise vibration; the suction flexible connecting pipe and flexible connection are used to make the casing and the pump body completely flexibly connected, and at the same time, the suction muffler chamber is provided between the suction flexible connecting pipe and the cylinder assembly to eliminate the noise generated by suction pulsation; and the exhaust muffler chamber is also provided at the exhaust end to solve the problems of vibration and high noise of the rotor compressor, while having high cooling capacity and excellent starting performance.

[0010] The compressor using this structural arrangement has significantly increased cooling capacity compared to piston compressors of the same displacement; it not only has less noise and vibration than existing rotor compressors, but also has much less noise than piston compressors of the same displacement.

[0011] Among them, the cylinder assembly is connected to the shell suction pipe through the suction silencer chamber and the suction flexible connecting pipe, and can directly inhale from the outside of the casing. After the noise reduction and silencing of the flexible pipe and the suction silencer chamber, the gas entering the cylinder assembly is smooth and orderly, and the suction noise is significantly reduced; the high-pressure gas is directly discharged into the casing after silencing and noise reduction through the exhaust silencer chamber, and no obvious noise is generated, and then discharged from the casing through the shell exhaust pipe on the casing; this process is contrary to the idea of ​​the existing compressor with an exhaust pipe but no suction pipe, and directly inhales the external low-temperature refrigerant gas into the cylinder assembly, avoiding heat exchange in the casing and ensuring a good cooling effect.

[0012] By adopting the setting of the flexible air intake connecting pipe, the shape of the pipe body is changeable and can be easily set into various curved and arc shapes, which is conducive to the setting of the cloth and makes full use of the narrow space in the compressor casing; and the flexible air intake connecting pipe undergoes a longer transmission path between the shell air intake pipe and the air intake silencer chamber, so that the gas can be fully buffered and vibration absorbed when being inhaled, thereby significantly reducing the gas noise.

[0013] Furthermore, the air intake silencer chamber is arranged close to one side of the shell air intake pipe, and the air intake silencer chamber is installed on the side of the cylinder assembly; the air intake silencer chamber has a cavity with a snap-fit ​​connection, and a silencer chamber air inlet pipe and a silencer chamber air outlet pipe are provided in the cavity; the silencer air inlet pipe is arranged on the side of the cavity, one end of which is flexibly connected to the air intake flexible connecting pipe and the other end extends into the cavity; the silencer chamber air outlet pipe is bent, one end of which is inserted into and connected to the air intake channel and the other end is bent and extends to the middle and upper part of the cavity.

[0014] The air intake silencer chamber adopting this structure is simple in structure, easy to install, does not occupy much space, and can ensure the effect of silencing and reducing noise; the gas rotates and buffers in the air intake silencer chamber before entering the cylinder assembly, the gas is smoother and more even, and no sharp noise is generated at the moment of intake and exhaust.

[0015] Furthermore, the inner contour surface or outer contour surface of the air intake silencer cavity is installed or coated with heat insulation materials, such as PBT, high temperature nylon, polyetheretherketone; the air outlet pipe of the silencer cavity has a horizontal insertion part and a vertical air intake part, the horizontal insertion part is inserted into the air intake channel, and the vertical air intake part has an inner tube structure and a variable inner diameter setting. The variable inner diameter setting further improves the effect of silencing and noise reduction; the heat insulation material can prevent the low-temperature gas in the air intake silencer cavity from having a significant heat exchange with the high-pressure and high-temperature environment in the casing, so as not to affect the cooling effect.

[0016] Furthermore, the cylinder assembly includes a cylinder body, an upper cylinder head and a lower cylinder head that are interconnected, and the cylinder body, the upper cylinder head and the lower cylinder head together form the inner cavity; the cylinder body is provided with a horizontal intake passage, and a through groove is vertically penetrated through the cylinder body on one side of the intake passage, and the horizontal cross-section of the through groove is gourd-shaped, and a swing slide is provided in the through groove close to the inner cavity; the rotor is arranged in the inner cavity, and one end of the slide is fixedly connected to the rotor, and the other end passes through the swing slide and extends into the through groove.

[0017] The rotor and the vane are in close contact with each other, which can be surface contact, body contact or integrated, with small leakage and little or even no friction between the rotor and the vane. It can greatly reduce mechanical wear and effectively reduce the compression loss of the refrigerant through the left-right symmetrical double compression chamber with a smooth and continuous compression method, thereby achieving higher energy efficiency.

[0018] Furthermore, the upper cylinder cover and the lower cylinder cover are respectively screwed on the upper and lower sides of the cylinder body, and the upper and lower end surfaces of the rotor and the sliding vane are respectively in oil-sealed contact with the upper cylinder cover and the lower cylinder cover; the total length of the sliding vane is slightly greater than the horizontal length of the through groove.

[0019] By means of oil sealing, it is possible to ensure that sealing end surfaces are formed between the rotor and the sliding vane and the upper cylinder cover and the lower cylinder cover, thereby reducing mutual leakage between high and low pressure areas and improving the compression effect.

[0020] Furthermore, an axial engaging groove is provided on the outer circumference of the rotor, and the radial cross-section of the engaging groove is I-shaped; grooves are symmetrically provided on both sides of the end of the sliding plate, and the grooves are adapted to the engaging groove, and the end of the sliding plate is engaged in the engaging groove.

[0021] Through this structural connection, the independent processing and forming of the rotor and the slide vane are convenient, the assembly is simple, and the strength and stability of the connection can be guaranteed; under the restriction of the upper cylinder head and the lower cylinder head, the slide vane and the rotor will not move or shake relative to each other, and the slide vane will rotate around the rocking slide vane and move along the through groove, thereby coordinating the eccentric movement of the rotor in the inner cavity to achieve compression.

[0022] Furthermore, the lower end of the crankshaft passes through the upper cylinder cover and is connected to the cylinder assembly; the upper cylinder cover is provided with the exhaust muffler chamber, and the upper cylinder cover is provided with the exhaust passage connected to the exhaust muffler chamber.

[0023] An exhaust silencer chamber is directly arranged on the upper cylinder head, which can directly silence and reduce vibration of the gas exhausted from the cylinder assembly, and the treated gas can be directly discharged into the casing without generating obvious noise; it also reduces the space occupied by a separate exhaust silencer chamber in the casing, and can reduce the volume of the compressor; there can be multiple exhaust silencer chambers, and they can also be used together with an exhaust buffer chamber.

[0024] Furthermore, the air intake flexible connecting pipe is a flexible pipe, and the two ends of the air intake flexible connecting pipe are flexibly connected with a first pipe joint assembly and a second pipe joint assembly respectively; the air intake flexible connecting pipe is serpentinely bent and arranged inside the casing; the first pipe joint assembly is flexibly connected to the shell air intake pipe, and the second pipe joint assembly is flexibly connected to the air intake silencer chamber.

[0025] Furthermore, the first pipe joint assembly includes a first pipe joint and a first fastener; the first pipe joint has an integrally formed first clamping portion, a first buffer portion and a second clamping portion, the first clamping portion is sleeved with the shell intake pipe, the second clamping portion is sleeved with the intake flexible connecting pipe, the first fastener is clamped on the intake flexible connecting pipe and the first buffer portion and abuts against the first clamping portion; the second pipe joint assembly has a gourd-shaped first connecting end and a second connecting end, the first connecting end is internally connected to the second connecting end, the first connecting end is sleeved with the intake flexible connecting pipe, and the second connecting end is connected to the intake silencer chamber.

[0026] The first pipe joint adopting this structure can firmly connect the shell air intake pipe and the flexible pipe, and has good sealing performance. The gas can also be buffered when passing through the first buffer part; the inner hole diameter of the first clamping part is slightly smaller than the outer diameter of the shell air intake pipe to achieve the purpose of interference fit; because the first pipe joint is also made of flexible material, it has elastic deformation ability and can tightly wrap the shell air intake pipe. When the flexible pipe is sleeved on the gourd-shaped first connecting end, the pipe mouth of the flexible pipe will fit tightly on the inclined part under the action of the airflow (gas flow direction), and there is a trend of getting tighter, without the need to sleeve other fastening parts.

[0027] Furthermore, a shell exhaust pipe is arranged on the same side of the shell intake pipe, and a process pipe is arranged on the other side; the elastic support member includes an inner support pin arranged on the inner bottom plate of the shell, a compression spring support block is sleeved on the inner support pin, a compression spring or a tension spring is arranged on the compression spring support block, and the other end of the compression spring or tension spring is also abutted against the cylinder assembly through the compression spring support block.

[0028] By using elastic support members such as compression spring support blocks and compression springs, the rigid contact between the pump body and the casing can be isolated, rigid collision can be reduced, and the shock absorption, buffering and noise reduction effects are better.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The compressor places the pump body composed of the cylinder assembly, the crankshaft, the rotor, the motor, etc. on the elastic support member to avoid direct transmission of noise vibration to the casing, thereby reducing noise vibration; 2. The suction flexible connecting pipe and flexible connection are used to make the casing and the pump body completely flexiblely connected, and the suction muffler chamber is provided between the suction flexible connecting pipe and the cylinder assembly to eliminate the noise generated by suction pulsation; 3. The exhaust muffler chamber is also provided at the exhaust end to solve the problems of vibration and high noise of the rotor compressor, while having high cooling capacity and high starting performance. Excellent performance; 4. The compressor adopting this structural arrangement has significantly increased cooling capacity compared with the piston compressor of the same displacement; it not only has less noise and vibration than the existing rotor compressor, but also has much less noise than the piston compressor of the same displacement; 5. This compressor has formed a direct suction structure, which is beneficial to control noise and increase cooling capacity; it also simplifies the setting of the cylinder head and makes the pump body structure simpler; 6. The rotor and the vane are set up, the two are in close contact, the leakage is small, the friction between the rotor and the vane is very small or even non-existent, which can greatly reduce mechanical wear; the compression loss of the refrigerant is effectively reduced by a smooth and continuous compression method, thereby obtaining higher energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a top view (half-section) structural schematic diagram of a novel rotor compressor with flexible connection and direct air intake according to the present invention;

[0031] Figure 2 This is a schematic diagram of the AA structure of a novel rotary compressor with flexible connection and direct air suction according to the present invention;

[0032] Figure 3 It is a side view half-section structure schematic diagram of a novel rotor compressor with flexible connection and direct air intake according to the present invention;

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of the air intake flexible connection pipe and the lower part of the casing of a new type of rotary compressor with flexible connection and direct air intake of the present invention;

[0034] Figure 5 It is a schematic diagram of the rotor and vane structure of a novel rotor compressor with flexible connection and direct air suction according to the present invention;

[0035] Figure 6 It is an enlarged schematic diagram of the rotor and vane connection structure of a new type of rotor compressor with flexible connection and direct air intake according to the present invention;

[0036] Figure 7 It is a schematic diagram of the connection structure between the cylinder body and the suction muffler chamber of a new type of rotary compressor with flexible connection and direct suction of the present invention;

[0037] Figure 8 It is a half-section schematic diagram of the connection structure between the cylinder body and the suction muffler chamber of a new type of rotary compressor with flexible connection and direct suction of the present invention;

[0038] Fig. 9 It is a schematic diagram of the connection structure between the suction flexible connection pipe and the suction muffler chamber of a new type of rotary compressor with flexible connection and direct suction of the present invention;

[0039] Fig.10 for Fig. 9 A schematic structural diagram of the first pipe joint assembly;

[0040] Fig.11 for Fig. 9 A schematic diagram of the structure of the second pipe joint;

[0041] In the figure: 1, housing; 2, elastic support member; 201, inner support pin; 202, compression spring support block; 203, compression spring; 3, cylinder assembly; 301, cylinder body; 302, upper cylinder head; 303, lower cylinder head; 4, crankshaft; 5, motor; 6, rotor; 601, snap-fit ​​groove; 7, slide; 701, groove; 8, intake channel; 9, suction muffler chamber; 901, horizontal insertion part; 902, vertical suction part; 903, heat insulation material; 10, suction flexible connecting pipe; 11, exhaust Silence chamber; 12. Shell air intake pipe; 13. Shell exhaust pipe; 14. Process pipe; 15. First pipe joint assembly; 1501. First clamping portion; 1502. First buffer portion; 1503. Second clamping portion; 1504. Neck reduction; 1505. First fastener; 16. Second pipe joint assembly; 1601. Second connecting end; 1602. First connecting end; 1603. Second buffer portion; 1604. Vertical portion; 1605. Inclined portion; 17. Through slot; 18. Swinging slide. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] Embodiment 1:

[0045] like Figure 1 to Figure 6 As shown, a new type of rotor compressor with flexible connection and direct air intake comprises a casing 1, a pump body is installed inside the casing 1 through a plurality of elastic support members 2, the pump body comprises a cylinder assembly 3, a crankshaft 4 is sleeved on the cylinder assembly 3, and a motor 5 is sleeved on the upper part of the crankshaft 4; the pump body also comprises a rotor 6 (a swing rotor in this embodiment) arranged in the cylinder assembly 3, the rotor 6 is sleeved on the crankshaft 4; the rotor 6 is sleeved on the crankshaft 4 through a sliding vane 7 (see Figure 5 ) is connected to the cylinder assembly 3, the rotor 6 and the slide vane 7 divide the inner cavity of the cylinder assembly 3 into a low-pressure chamber and a high-pressure chamber; the low-pressure chamber is connected to the suction silencer chamber 9 through the air intake passage 8, and the suction silencer chamber 9 is connected to the shell suction pipe 12 through the suction flexible connecting pipe 10; the high-pressure chamber is connected to the exhaust silencer chamber 11 through the exhaust passage, and the exhaust silencer chamber 11 is connected to the inner cavity of the casing 1.

[0046] The compressor places the pump body composed of the cylinder assembly 3, the crankshaft 4, the rotor 6, the motor 5, etc. on the elastic support member 2 to avoid noise vibration from being directly transmitted to the casing 1, thereby reducing noise vibration; the suction flexible connecting pipe 10 and the flexible connection are adopted to make the casing 1 and the pump body completely flexibly connected, and at the same time, the suction muffler chamber 9 is arranged between the suction flexible connecting pipe 10 and the cylinder assembly 3 to eliminate the noise generated by suction pulsation; and the exhaust muffler chamber 11 is arranged at the exhaust end, thereby solving the problems of vibration and high noise of the rotor compressor, and at the same time, the cooling capacity is high and the starting performance is excellent.

[0047] The compressor using this structural arrangement has significantly increased cooling capacity compared to piston compressors of the same displacement; it not only has less noise and vibration than existing rotor compressors, but also has much less noise than piston compressors of the same displacement.

[0048] Among them, the cylinder assembly 3 is connected to the shell suction pipe 12 through the suction silencer chamber 9 and the suction flexible connecting pipe 10, and can directly inhale from the outside of the casing 1. After the noise reduction and silencing of the suction flexible connecting pipe 10 and the suction silencer chamber 9, the gas entering the cylinder assembly 3 is smooth and orderly, and the suction noise is significantly reduced; the high-pressure gas is directly discharged into the casing 1 after silencing and noise reduction through the exhaust silencer chamber 11, and no obvious noise will be generated, and then discharged from the casing through the upper shell exhaust pipe of the casing 1; this process is contrary to the idea of ​​the existing compressor to set an exhaust pipe but not an suction pipe, forming a direct suction effect, and directly sucking the external low-temperature refrigerant gas into the cylinder assembly, avoiding heat exchange in the casing, and ensuring a good refrigeration effect.

[0049] By adopting the setting of the flexible air intake connecting pipe 10, the shape of the tube body is changeable and can be easily set into various curved and arc-shaped shapes, which is conducive to the setting of the cloth and makes full use of the narrow space in the compressor casing; and the flexible air intake connecting pipe 10 undergoes a relatively long (relative to the inner circumference of the casing) transmission path between the shell air intake pipe 12 and the air intake silencer chamber 9, so that the gas can be fully buffered and vibration absorbed when being inhaled, thereby significantly reducing the gas noise.

[0050] Furthermore, the air suction silencing chamber 9 is arranged close to one side of the shell air suction pipe 12 , and the air suction silencing chamber 9 is installed on the side of the cylinder assembly 3 .

[0051] Further, combined with Figure 2 and Figure 5 As shown, the cylinder assembly 3 includes a cylinder body 301, an upper cylinder head 302 and a lower cylinder head 303 which are interconnected, and the cylinder body 301, the upper cylinder head 302 and the lower cylinder head 303 together form the inner cavity; the cylinder body is provided with a horizontal air intake passage 8, and a through groove 17 is vertically penetrated on the cylinder body 301 on one side of the air intake passage 8, and the horizontal cross-section of the through groove 17 is gourd-shaped, and a swinging slide 18 is provided in the through groove 17 close to the inner cavity; the rotor 6 is arranged in the inner cavity, and one end of the slide 7 is fixedly connected to the rotor 6, and the other end passes through the swinging slide 18 and extends into the through groove 17.

[0052] The rotor 6 and the vane 7 are arranged so as to have close surface contact between the two, thereby reducing leakage and causing little or no friction between the rotor and the vane. The arrangement can greatly reduce mechanical wear and effectively reduce compression loss of the refrigerant by means of a smooth and continuous compression method through the compression chambers on the left and right sides, thereby achieving higher energy efficiency.

[0053] Furthermore, the upper cylinder cover 302 and the lower cylinder cover 303 are respectively screwed on the upper and lower sides of the cylinder body 301, and the upper and lower end surfaces of the rotor 6 and the slide vane 7 are respectively in oil-sealed contact with the upper cylinder cover 302 and the lower cylinder cover 303; the length of the slide vane 7 is slightly larger than the horizontal length of the through groove 17.

[0054] By means of oil sealing, it is possible to ensure that sealing end surfaces are formed between the rotor 6 and the sliding vane 7 and the upper cylinder cover 302 and the lower cylinder cover 303, thereby reducing mutual leakage between high and low pressure areas and improving the compression effect.

[0055] Further, such as Figure 6 As shown, an axial engaging groove 601 is provided on the outer circumference of the rotor 6, and the radial cross-section of the engaging groove 601 is I-shaped; grooves 701 are symmetrically provided on both sides of the end of the slide 7, and the grooves 701 are adapted to the engaging groove 601, and the end of the slide 7 is engaged in the engaging groove 601.

[0056] Through this structural connection, it is convenient to independently process and shape the rotor 6 and the slide 7, and the assembly is also simple, and the strength and stability of the connection can be guaranteed; under the restriction of the upper cylinder head 302 and the lower cylinder head 303, the slide 7 and the rotor 6 will not move or shake relative to each other, and the slide 7 will rotate around the rocking slide and move along the through groove 17, thereby coordinating the eccentric movement of the rotor 6 in the inner cavity to achieve compression.

[0057] Furthermore, the upper cylinder cover 302 is provided above the cylinder assembly 3 ; the exhaust muffler chamber 11 is provided above the upper cylinder cover 302 , and the upper cylinder cover 302 is provided with the exhaust passage connected to the exhaust muffler chamber 11 .

[0058] An exhaust silencer chamber 11 is directly arranged on the upper cylinder cover 302, which can directly silence and reduce vibration of the gas exhausted from the cylinder assembly 3, and the treated gas can be directly discharged into the casing 1 without generating obvious noise; it also reduces the space occupied by a separate exhaust silencer chamber in the casing 1, and can reduce the volume of the compressor; the exhaust silencer chamber 11 can be multiple, and can also be used together with an exhaust buffer chamber.

[0059] Furthermore, a shell exhaust pipe 13 is provided on the same side of the shell intake pipe 12 as the shell 1, and a process pipe 14 is provided on the other side; Figure 3 As shown, the elastic support member 2 includes an inner support pin 201 arranged on the inner bottom plate of the casing 1, and a compression spring support block 202 is sleeved on the inner support pin 201, and a compression spring 203 is provided on the compression spring support block 202, and the other end of the compression spring 203 is also abutted against the cylinder assembly 3 through the compression spring support block 202.

[0060] By using elastic supporting parts such as the compression spring support block 202 and the compression spring 203, the rigid contact between the pump body and the housing can be isolated, rigid collision can be reduced, and the shock absorption, buffering and noise reduction effects are better. The compression spring 203 is a variable pitch spring.

[0061] Embodiment 2:

[0062] The difference between this embodiment and the first embodiment is that a structure and a connection method of an air suction silencer cavity are provided.

[0063] Specific as Figure 7 and Figure 8 As shown, the air intake silencer chamber 9 has a cavity with a snap-fit ​​connection, and a silencer chamber air inlet pipe (integrated with the second pipe joint assembly 16) and a silencer chamber air outlet pipe are provided in the cavity; the silencer air inlet pipe is arranged on the side of the cavity, one end of which is flexibly connected to the air intake flexible connecting pipe 10, and the other end extends into the cavity; the silencer chamber air outlet pipe is bent, one end of which is inserted into and connected to the air intake channel 8, and the other end is bent and extends to the middle and upper part of the cavity.

[0064] The air intake silencer chamber 9 adopting this structure has a simple structure, is easy to install, does not occupy much space, and can ensure the effect of silencing and reducing noise; the gas rotates and buffers in the air intake silencer chamber before entering the cylinder assembly, the gas is smoother and more uniform, and no sharp noise is generated at the moment of intake and exhaust.

[0065] Furthermore, the inner contour surface of the air intake and silencer cavity 9 is covered with a heat-insulating material 903, such as polyetheretherketone; the air outlet pipe of the silencer cavity has a horizontal insertion portion 901 and a vertical air intake portion 902, the horizontal insertion portion 901 is inserted into the air inlet passage 8, and the vertical air intake portion 902 has an inner tube structure and a variable inner diameter setting. The variable inner diameter setting further improves the effect of silencing and noise reduction; the heat-insulating material 903 can reduce the significant heat exchange between the low-temperature gas in the air intake and silencer cavity and the high-pressure and high-temperature environment in the casing, so as not to affect the cooling effect.

[0066] Embodiment three:

[0067] The difference between this embodiment and the first embodiment is that a structure and a connection method of an air intake flexible connecting pipe are provided.

[0068] Specific as Figures 9-11 As shown, the air intake flexible connecting pipe 10 is a flexible pipe, and the two ends of the air intake flexible connecting pipe 10 are flexibly connected with a first pipe joint assembly 15 and a second pipe joint assembly 16 respectively; the air intake flexible connecting pipe 10 is arranged in a serpentine shape with ups and downs inside the casing 1; the first pipe joint assembly 15 is flexibly connected to the shell air intake pipe 12, and the second pipe joint assembly 16 is flexibly connected to the air intake silencer chamber 9.

[0069] Furthermore, the first pipe joint assembly 15 includes a first pipe joint and a first fastener 1505; the first pipe joint has an integrally formed first clamping portion 1501, a first buffer portion 1502 and a second clamping portion 1503, the first clamping portion 1501 is sleeved with the shell intake pipe 12, the second clamping portion 1503 is sleeved with the intake flexible connecting pipe 10, the first fastener 1505 is clamped on the intake flexible connecting pipe 10 and the first buffer portion 1502 and abuts against the first clamping portion 1501; the second pipe joint assembly 16 has a gourd-shaped first connecting end 1602 and a second connecting end 1601, the first connecting end 1602 is internally connected to the second connecting end 1601 to form a second buffer portion 1603, the first connecting end 1602 is sleeved with the intake flexible connecting pipe 10, and the second connecting end 1601 is directly inserted into the intake silencing cavity.

[0070] The first pipe joint adopting the present structure can not only firmly connect the shell intake pipe 12, but also firmly connect the intake flexible connecting pipe 10, and has good sealing performance, and the gas can also be buffered when passing through the first buffer part 1502; the inner hole diameter of the first clamping part 1501 is slightly smaller than the outer diameter of the shell intake pipe 12 to achieve the purpose of interference fit; since the first pipe joint is also made of flexible material, it has elastic deformation ability and can tightly wrap the shell intake pipe 12.

[0071] When the air intake flexible connection pipe 10 is sleeved on the gourd-shaped first connection end 1602, the pipe mouth of the air intake flexible connection pipe 10 will be tightly fitted on the inclined portion 1605 under the action of the air flow (gas flow direction), and there is a trend of becoming tighter, without sleeved other fastening parts; the outer diameter of the vertical portion 1604 is smaller than the inner diameter of the air intake flexible connection pipe 10, which is convenient for the pipe mouth to be docked. These flexible materials are engineering plastics, rubber, etc.

[0072] Furthermore, the central axis of the first connection end 1602 and the central axis of the second connection end 1601 are arranged perpendicularly; the intersection of the first connection end 1602 and the second connection end 1601 forms a second buffer portion.

[0073] The first connecting end 1602 and the second connecting end 1601 which are perpendicular to each other can introduce the vertically downward airflow horizontally into the air suction silencer cavity 9; and the second buffer portion 1603 can also buffer the gas and reduce the gas noise.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of rotor compressor with flexible connection and direct air intake, comprising a casing, a pump body is installed inside the casing, the pump body comprises a cylinder assembly, a crankshaft is sleeved on the cylinder assembly, and a motor is sleeved on the upper part of the crankshaft; characterized in that: The pump body also includes a swinging or sliding rotor arranged in the cylinder assembly, and the rotor is sleeved with the crankshaft; the rotor is connected to the cylinder assembly through a sliding vane, and the rotor and the sliding vane divide the inner cavity of the cylinder assembly into a low-pressure chamber and a high-pressure chamber; the low-pressure chamber is connected to an air suction muffler chamber through an air intake passage, and the air suction muffler chamber is connected to a shell air suction pipe through an air suction flexible connecting pipe; the exhaust chamber of the cylinder assembly is connected to the exhaust muffler chamber through an exhaust passage, and the exhaust muffler chamber is communicated with the internal high-pressure chamber of the casing, and the internal high-pressure chamber of the casing is connected to the outside through the shell exhaust pipe on the casing; the pump body is connected to the casing through an elastic support member; The air intake flexible connecting pipe is a flexible pipe, and the two ends of the air intake flexible connecting pipe are flexibly connected with a first pipe joint assembly and a second pipe joint assembly respectively; the air intake flexible connecting pipe is serpentinely bent and arranged inside the housing; the first pipe joint assembly is flexibly connected to the housing air intake pipe, and the second pipe joint assembly is flexibly connected to the air intake muffler chamber; The first pipe joint assembly includes a first pipe joint and a first fastener; the first pipe joint has an integrally formed first clamping portion, a first buffer portion, and a second clamping portion, the first clamping portion is sleeved with the housing air intake pipe, the second clamping portion is sleeved with the air intake flexible connecting pipe, the first fastener is clamped on the air intake flexible connecting pipe and the first buffer portion and abuts against the first clamping portion; the second pipe joint assembly has a gourd-shaped first connecting end and a second connecting end, the first connecting end is internally connected to the second connecting end, the first connecting end is sleeved with the air intake flexible connecting pipe, and the second connecting end is connected to the air intake muffler chamber; The shell air intake pipe and the shell exhaust pipe are arranged on the same side of the shell, and a process pipe is arranged on the other side of the shell.

2. The novel rotor compressor with flexible connection and direct air intake according to claim 1 is characterized in that: The air intake silencer chamber is arranged close to one side of the shell air intake pipe, and the air intake silencer chamber is installed on the side of the cylinder assembly; the air intake silencer chamber has a cavity with a snap-fit ​​connection, and a silencer chamber air inlet pipe and a silencer chamber air outlet pipe are arranged in the cavity; the silencer chamber air inlet pipe is arranged on the side of the cavity, one end of which is flexibly connected to the air intake flexible connecting pipe and the other end extends into the cavity; the silencer chamber air outlet pipe is bent, one end of which is inserted into and connected to the air intake channel and the other end is bent and extends to the middle and upper part of the cavity.

3. The novel rotor compressor with flexible connection and direct air intake according to claim 2 is characterized in that: The inner contour surface or outer contour surface of the air intake silencer cavity is installed or coated with heat insulation material; the silencer cavity outlet pipe has a horizontal insertion part and a vertical air intake part, the horizontal insertion part is inserted into the air intake channel, and the vertical air intake part has an inner tube structure and is set with a variable inner diameter.

4. The novel rotor compressor with flexible connection and direct air intake according to claim 1 is characterized in that: An axial engaging groove is provided on the outer circumference of the rotor, and the radial cross section of the engaging groove is I-shaped; grooves are symmetrically provided on both sides of the end of the sliding plate, and the grooves are adapted to the engaging groove, and the end of the sliding plate is engaged in the engaging groove.

5. The novel rotor compressor with flexible connection and direct air intake according to claim 1 is characterized in that: An upper cylinder cover is provided above the cylinder assembly, and the lower end of the crankshaft passes through the upper cylinder cover and is connected with the cylinder assembly; the upper cylinder cover is provided with the exhaust muffler chamber, and the upper cylinder cover is provided with the exhaust passage connected with the exhaust muffler chamber.

6. The novel rotor compressor with flexible connection and direct air intake according to claim 1 is characterized in that: The elastic support member includes an inner support pin arranged on the inner bottom plate of the casing, a compression spring support block is sleeved on the inner support pin, a compression spring or a tension spring is provided on the compression spring support block, and the other end of the compression spring or tension spring is also abutted against the cylinder assembly through the compression spring support block.

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