CN110848140A - Compressor air suction structure, compressor and refrigeration and heating equipment - Google Patents
Compressor air suction structure, compressor and refrigeration and heating equipment Download PDFInfo
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- CN110848140A CN110848140A CN201911181414.8A CN201911181414A CN110848140A CN 110848140 A CN110848140 A CN 110848140A CN 201911181414 A CN201911181414 A CN 201911181414A CN 110848140 A CN110848140 A CN 110848140A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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Abstract
The invention provides a compressor air suction structure, a compressor and refrigeration and heating equipment, wherein the compressor air suction structure comprises a first cylinder, a partition plate and a second cylinder, the first cylinder is provided with an air outlet hole close to the partition plate, an air suction channel penetrates through the partition plate, a first piston is arranged in the first cylinder, a second piston is arranged in the second cylinder, the eccentric amount of a crankshaft is e, the inner diameter of the second piston is d1, the distance between one side of the air suction channel close to the inner wall of the second cylinder and the axis of the second cylinder is L which is not less than 0.5d1+ e +0.5, and the included angle between one side of the air suction channel close to the inner wall of the second cylinder and the end face of the partition plate is α degrees to 90 degrees.
Description
Technical Field
The invention belongs to the technical field of compressors, and particularly relates to a compressor air suction structure, a compressor and refrigeration and heating equipment.
Background
The compressor is common in refrigeration and heating equipment such as air conditioners, refrigerators, heat pumps and the like and is a core component of the refrigeration and heating equipment. To double-cylinder rotary compressor, have two cylinders, all design the inlet port on two general cylinders, also have two breathing pipes simultaneously on the reservoir, respectively with two cylinder UNICOM. However, in recent years, a single suction design of a twin-cylinder compressor has been proposed, in which an air inlet is provided above the upper cylinder, and the air inlet is connected to an accumulator. The gas coming from the gas inlet is divided into two parts, one part directly enters the upper cylinder, and the other part enters the lower cylinder through the gas outlet. However, the flow distance of the air flow during the suction of the lower cylinder is greater than the flow distance of the air flow during the suction of the upper cylinder. This design is likely to result in insufficient intake in the lower cylinder.
Disclosure of Invention
The embodiment of the invention aims to provide a compressor air suction structure to solve the technical problem that the lower cylinder is insufficient in air suction in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that a compressor air suction structure is provided, and the compressor air suction structure comprises a first air cylinder, a partition plate and a second air cylinder, wherein the first air cylinder is provided with an air outlet hole which is close to the partition plate, an air suction channel which is used for communicating the air outlet hole with the second air cylinder is arranged on the partition plate in a penetrating mode, a first piston is arranged in the first air cylinder, a second piston is arranged in the second air cylinder, the inner diameter of the second piston is d1, the vertical distance between one side, close to the inner wall of the second air cylinder, of the air suction channel and the axis of the second air cylinder is L which is greater than or equal to (0.5d1+ e +0.5) on the cross section passing through the central shaft of a crankshaft and the central shaft of the air suction channel, and the included angle between one side, close to the inner wall of the second air cylinder, of the air suction channel and the end face, abutted against the second air cylinder, of.
In one embodiment, the second cylinder is provided with an inclined channel extending from the end surface of the second cylinder facing the partition plate to the inner cavity of the second cylinder, and on the cross section passing through the central axis of the crankshaft and the central axis of the air suction channel, the air outlet is close to one side of the inner wall of the second cylinder, the air suction channel is close to one side of the inner wall of the second cylinder, the inclined channel is close to one side of the inner wall of the second cylinder, and the air outlet is far away from one side of the inner wall of the second cylinder, the air suction channel is far away from one side of the inner wall of the second cylinder, and the inclined channel is far away from one side of the inner wall of the second cylinder.
In one embodiment, on a cross section passing through a central axis of the crankshaft and a central axis of the air suction channel, an included angle between one side of the air suction channel close to the inner wall of the second cylinder and an end face of the partition plate abutting against the second cylinder is α.
In one embodiment, in a cross section passing through a center axis of the crankshaft and a center axis of the intake passage, a side of the inclined passage away from the inner wall of the second cylinder and a side of the intake passage away from the inner wall of the second cylinder are arranged in line.
In one embodiment, the height of the inclined channel is h1, the height of the second cylinder is h2, and 0.5 ≦ h1/h2< 1.
In one embodiment, the inclined channel comprises an extending part and an inclined part, wherein the extending part is formed by extending the surface of the second cylinder along the axial direction of the second cylinder, and the inclined part is obliquely arranged relative to the axial direction of the second cylinder, so that the inclined part extends to an inner cavity communicated with the second cylinder.
In one embodiment, in a cross section passing through a central axis of the crankshaft and a central axis of the air suction channel, an included angle between one side of the inner wall of the inclined part far away from the second cylinder and an end face of the partition plate abutting against the second cylinder is α.
In one embodiment, on a cross section passing through a central axis of the crankshaft and a central axis of the air suction channel, an included angle between one side of the inner wall of the air suction channel, which is far away from the second cylinder, and an end face, which is abutted against the second cylinder, of the partition plate is 90 °.
In one embodiment, on a cross section passing through a central axis of the crankshaft and a central axis of the air suction channel, one side, close to the inner wall of the second cylinder, of the air outlet hole is arranged in a collinear manner with the central axis of the inclined channel, and an included angle between one side, far away from the inner wall of the second cylinder, of the air outlet hole and an end face, abutting against the second cylinder, of the partition plate is 90 degrees or α degrees.
The invention also provides a compressor, which comprises the compressor air suction structure, and further comprises a motor, a crankshaft, a bearing for supporting the crankshaft and a liquid storage device communicated with the first cylinder, wherein the crankshaft sequentially penetrates through the first cylinder, the partition plate and the second cylinder.
The embodiment of the invention also provides a refrigerating and heating device which comprises the compressor.
The compressor air suction structure, the compressor and the refrigerating and heating equipment have the advantages that compared with the prior art, the compressor air suction structure comprises the first cylinder, the partition plate and the second cylinder, the air outlet hole of the first cylinder is connected with the air suction channel of the partition plate, so that the first cylinder is communicated with the second cylinder, the eccentric amount of the crankshaft is e, the inner diameter of the second piston is d1, the distance between one side, close to the inner wall of the second cylinder, of the air suction channel and the axis of the second cylinder is L which is greater than or equal to (0.5d1+ e +0.5), the situation that the air suction channel is communicated with the inner cavity of the second piston when the second piston moves is avoided, pressure leakage is avoided, the included angle α, close to the inner wall of the second cylinder, between one side of the air suction channel and the end face of the partition plate is smaller than 90 degrees, the air suction channel is arranged in an inclined mode, the change of the air flowing direction during air suction is reduced as much as.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a first cross-sectional view of a first compressor suction structure according to an embodiment of the present invention;
fig. 2 is a sectional view of a second suction structure of a compressor according to an embodiment of the present invention;
fig. 3 is a second cross-sectional view of a first compressor suction structure according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a third compressor suction configuration provided in accordance with an embodiment of the present invention;
fig. 5 is a sectional view of a compressor according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-a first cylinder; 11-an air intake; 12-air outlet holes; 13-a suction hole; 2-a separator; 21a, 21 b-a suction channel; 3-a second cylinder; 31a, 31b, 31 c-inclined channels; 311-an extension; 312-an inclined portion; 4-a first piston; 5-a second piston; 6-crankshaft; 71-an upper bearing; 72-lower bearing.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The suction structure of the compressor according to the embodiment of the present invention will now be described.
Referring to fig. 1, in one embodiment of a compressor air suction mechanism, the compressor air suction structure includes a first cylinder 1, a partition plate 2 and a second cylinder 3, a first piston 4 is disposed in the first cylinder 1, a second piston 5 is disposed in the second cylinder 3, the first cylinder 1 has an air outlet 12 disposed near the partition plate 2, and an air suction passage 21a is disposed through the partition plate 2, wherein the first cylinder 1 is an upper cylinder and the second cylinder 3 is a lower cylinder, the first cylinder 1 communicates with a reservoir, or the second cylinder 3 communicates with the reservoir, when the first cylinder 1 communicates with the reservoir, when the compressor sucks air, a portion of air entering from an air inlet 11 of the first cylinder 1 directly enters the first cylinder 1, and another portion enters the second cylinder 3 through the air outlet 12 and the air suction passage 21a, when the second cylinder 3 communicates with the reservoir (not shown), when the compressor sucks air, a portion of air entering from an air inlet of the second cylinder 3 directly enters the second cylinder 3, and another portion of air entering the first cylinder 1 through the air outlet and the air suction passage 21a enters the first cylinder 1, when the compressor sucks air, the compressor, the air flow loss of the first cylinder 1 is reduced, and the air flow loss of the second cylinder 21a is smaller than when the air flow of the second cylinder 1, the air suction passage 2 is not greater than when the air flow of the second cylinder 21, the air suction passage 21a, the air flow loss is smaller than when the air flow of the second cylinder 1, the air suction passage, the air flow of the second cylinder 1, the compressor, the air suction passage, the air flow of the cylinder 2, the air flow of the air cylinder 2 is not shown, the air cylinder 2, the air suction passage, the air flow of the cylinder 2, the air suction passage is not shown, so that the air flow loss is smaller than when the flow of the air cylinder 1, the air flow of the air suction passage, the air flow of the air cylinder 1 is smaller than the air flow of the air.
On the other hand, referring to fig. 1 and 5 together, the eccentric amount of the crankshaft 6 is e, the inner diameter of the second piston 5 is d1(d1 is the diameter of the inner cavity of the second piston 5), the distance between the portion of the suction passage 21a closest to the inner wall of the second cylinder 3 and the axis of the second cylinder 3 is L, and L is 0.5d1+ e, the side 211a of the suction passage 21a close to the inner wall of the second cylinder 3 is just connected to the top end of the inner wall of the second piston 5, and when L is equal to or greater than (0.5d1+ e +0.5), the suction passage 21a is made to have a distance of at least 0.5mm between the side 211a of the inner wall of the second cylinder 3 and the top end of the inner wall of the second piston 5, so that the suction passage 21a is made to directly communicate with the inner cavity of the second piston 5 even if there are manufacturing errors and assembly errors, the suction passage 21a is made to avoid high-pressure gas leakage, and the compressor operation efficiency is improved, and therefore, when α <90 ° causes the suction passage 21a to be inclined, the gas leakage to be set, the direction may be reduced, and the suction passage may be communicated to the cylinder 3 a, even if the suction passage 21a is inclined to the cylinder 3 may be increased, the suction passage may be increased, and the suction efficiency may be increased, even if the suction passage may be increased, and the cylinder 3 may be increased, even if the suction passage may be increased, and the suction efficiency may be increased, and the cylinder 3 may be increased, if the suction.
The suction structure of the compressor in the embodiment comprises a first cylinder 1, a partition plate 2 and a second cylinder 3, wherein an air outlet hole 12 of the first cylinder 1 is connected with a suction channel 21a of the partition plate 2, so that the first cylinder 1 is communicated with the second cylinder 3, the eccentric amount of a crankshaft 6 is e, the inner diameter of a second piston 5 is d1, the distance between the side, close to the inner wall of the second cylinder 3, of the suction channel 21a and the axis of the second cylinder 3 is L, L is greater than or equal to (0.5d1+ e +0.5), the suction channel 21a is prevented from being communicated with the inner cavity of the second piston 5 when the second piston 5 moves, so that pressure leakage is avoided, the suction channel 21a is obliquely arranged at an included angle α <90 degrees between the side 211a, close to the inner wall of the second cylinder 3, and the end face of the partition plate α, so that the change of the gas flow direction during suction is reduced as much as possible, the local loss of gas is reduced.
Referring to fig. 1, in one embodiment of the air suction structure of the compressor, the second cylinder 3 is provided with an inclined channel 31a, and the inclined channel 31a extends from an end surface of the second cylinder 3 to an inner cavity of the second cylinder 3, so that the air enters the second cylinder 3 through the inclined channel 31 a. Since the suction passage 21a and the inclined passage 31a are both provided obliquely, the change in the direction of the airflow can be reduced, and the airflow loss can be reduced. The air outlet hole 12, the air suction channel 21a and the inclined channel 31a are sequentially communicated, so that the first cylinder 1 and the second cylinder 3 on two sides of the partition plate 2 are communicated, and the air outlet hole 12, the air suction channel 21a and the inclined channel 31a are combined to form an air flow passage for communicating the first cylinder 1 and the second cylinder 3. On the cross section of the central axis of the crankshaft 6 and the central axis of the air suction channel 21a, the air outlet hole 12 is close to the inner wall side of the second cylinder 3, the air suction channel 21a is close to the inner wall side 211a of the second cylinder 3, the inclined channel 31a is close to the inner wall side of the second cylinder 3, the air outlet hole 12 is far away from the inner wall side of the second cylinder 3, the air suction channel 21a is far away from the inner wall side 212a of the second cylinder 3, and the inclined channel 31a is far away from the inner wall side of the second cylinder 3, so that the side walls of the air suction hole 13, the air suction channel 21a and the inclined channel 31a are sequentially connected, and even if the side wall of the air.
Referring to fig. 1, in one embodiment of the suction structure of the compressor, in the cross section of the central axis of the crankshaft 6 and the central axis of the suction channel 21a, an included angle between one side 211a of the inner wall of the suction channel 21a close to the second cylinder 3 and the end surface of the partition plate 2 is α, that is, the inclination angles of both sides of the suction channel 21a are the same, if the suction channel 21a is a circular channel, the inclination angle of the peripheral side of the suction channel 21a is the same, that is, the suction channel 21a is a cylindrical channel disposed obliquely, and the suction channel 21a extends toward the inner cavity of the second cylinder 3 as a whole and is communicated with the inclined channel 31 a.
Referring to fig. 1, more specifically, in one embodiment of the suction structure of the compressor, when, in a cross section passing through the central axis of the crankshaft 6 and the central axis of the suction channel 21a, a side 211a of the suction channel 21a close to the inner wall of the second cylinder 3 and a side 212a of the suction channel 21a far from the inner wall of the second cylinder 3 are parallel to each other, and a side of the inner wall of the inclined channel 31a far from the second cylinder 3 and a side of the inner wall of the suction channel 21a far from the second cylinder 3 are arranged in line, an included angle between the side of the inner wall of the inclined channel 31a far from the second cylinder 3 and the end surface of the partition plate 2 is also α, that is, an air flow path is smoothly connected at the side of the inner wall far from the second cylinder 3 and at the connection between the suction channel 21a and the inclined channel 31a, a straight path is formed to directly enter the inner wall of the second cylinder 3, the path is a cylindrical path, so that the air flow in the air flow.
Referring to fig. 1, more specifically, in one embodiment of the suction structure of the compressor, in a cross section of the central axis of the crankshaft 6 and the central axis of the suction passage 21a, a side 211a of the suction passage 21a close to the inner wall of the second cylinder 3 and a side 212a of the suction passage 21a far from the inner wall of the second cylinder 3 are parallel to each other, a side of the inclined passage 31a far from the inner wall of the second cylinder 3 is arranged in line with a side of the suction passage 21a far from the inner wall 212a of the second cylinder 3, a height of the inclined passage 31a is h1, a height of the second cylinder 3 is h2., wherein the height of the inclined passage 31a is a length of the inclined passage 31a in an axial direction of the second cylinder 3, and a height of the second cylinder 3 is a length of the second cylinder 3 in an axial direction thereof, 493h 1 is too small < 735, a height h1 of the inclined passage 31a is also small when too small 4 is too small, when gas enters the second cylinder 3 from the inclined passage 31a, local gas loss is still large as compared with the air flow loss of the second cylinder 3, the air flow passage, the air flow loss is not smaller than or larger than the local air flow loss of the cylinder 3, the intake passage 1, the intake passage is not smaller than the local intake passage 1, the local intake channel is not smaller than the local intake channel of the intake channel 31b 3, and the intake channel is not smaller than the intake channel 2 of the intake channel of the cylinder 3, the intake channel is not smaller than the intake channel.
Referring to fig. 2, in one embodiment of the suction structure of the compressor, in a cross section passing through the central axis of the crankshaft 6 and the central axis of the suction passage 21a, the suction passage 21a is close to and away from both sides of the inner wall of the second cylinder 3 at an angle α with the end surface of the partition plate 2, the inclined passage 31b includes an extension 311 and an inclined portion 312, the extension 311 is disposed close to the suction passage 21a, the inclined portion 312 is disposed close to the inner cavity of the second cylinder 3, and the extension 311 is communicated with the inclined portion 312. as shown in fig. 2, the extension 311 is disposed perpendicular to the end surface of the partition plate 2, and actually, the extension 311 corresponds to a sink groove disposed on the surface of the second cylinder 3. the inclined portion 312 is disposed obliquely with respect to the axial direction of the second cylinder 3, so that the inclined portion 312 extends to communicate with the inner cavity of the second cylinder 3. the combination of the extension 311 and the inclined portion 312 meets both requirements of a small included angle α between the side 211a side of the inner wall of the suction passage 21a close to the second cylinder 3 and the end surface of the partition plate 2, and meets a local requirement of a large height 3 h of the inclined passage 21.
Alternatively, when 0.5 ≧ h1/h2<1, α will not be too small, and the inclined passage 31b has a greater length, which enables the airflow to smoothly enter the second cylinder 3, reducing the local loss of the airflow, in this embodiment, by so limiting L ≧ 0.5d1+ e +0.5) and 0.5 ≦ h1/h2<1, α is made neither too large nor too small, and the flow passage loss of the second cylinder 3 during intake is low, improving the efficiency of the second cylinder 3.
The height of the extending portion 311 is h4, the height of the inclined portion 312 is h5, the ratio of h4+ h5 is h3, and the ratio of h4/h3 is 0.5 to 0.7, such as 0.6 and 0.7, so that the larger height of the inclined passage 31b can be ensured, and the requirement of smaller inclination angles of the air suction passage 21a and the inclined portion 312 can be met.
Referring to fig. 2, more specifically, in one embodiment of the compressor air suction structure, both sides of the inner wall of the air suction passage 21a close to and far from the second cylinder 3 form an angle α with the end surface of the partition plate 2, the inclined passage 31b includes an extension portion 311 and an inclined portion 312, the extension portion 311 is formed by the surface of the second cylinder 3 and extends in the axial direction of the second cylinder 3, the angle between the side of the inclined portion 312 far from the inner wall of the second cylinder 3 and the end surface of the partition plate 2 is α, so that the inclination angles of the air suction passage 21 and the inclined portion 312 are the same, when the gas flows through the air suction passage 21a, the extension portion 311 and the inclined portion 312, a part of the air always flows on a path α with the end surface of the partition plate 2 without changing the flow direction, so as to reduce local loss of the gas flow as much as possible.
Referring to fig. 4, in one embodiment of the compressor suction structure, the angle between the side 211b of the inner wall of the suction channel 21b close to the second cylinder 3 and the end surface of the partition plate 2 is α <90 °, and the angle between the side 212b of the inner wall of the suction channel 21b far from the second cylinder 3 and the end surface of the partition plate 2 is 90 °, that is, the suction channel 21b is obliquely disposed close to the side 211b of the inner wall of the second cylinder 3, and the suction channel 21b is vertically disposed far from the side 212b of the inner wall of the second cylinder 3, so that it is ensured that the equivalent diameter of the smallest cross section of the entire flow path (combination of the outlet hole 12, the suction channel 21b, and the inclined channel 31 c) is constant, the height h6 of the inclined channel 31c is significantly increased, and the diameter d3. of the flow path is such that the total width of the suction channel 21b close to the side of the inner wall of the second cylinder 3, and the distance d3. between the side of the inclined channel 31c far from the inner wall of the second cylinder 3 is significantly increased, compared to the embodiment in fig. 3, the height of the inclined channel 31a is equal to the height h, the height of the inclined channel 31b, the partial flow path is equal to the radius 3525, the radius of the suction channel 3590 d, and the flow path is significantly decreased, and the flow loss is also decreased in comparison with the angle of the side of the cylinder 3, 1 d 3590 h.
Referring to fig. 4, more specifically, in one embodiment of the air suction structure of the compressor, an included angle between a side 211b of the inner wall of the air suction channel 21b close to the second cylinder 3 and the end surface of the partition board 2 is α <90 °, an included angle between a side 212b of the inner wall of the air suction channel 21b away from the second cylinder 3 and the end surface of the partition board 2 is 90 °, and an included angle between a side of the inner wall of the inclined channel 31c away from the second cylinder 3 and the end surface of the partition board 2 is α, so that the side 211b of the inner wall of the air suction channel 21b close to the second cylinder 3 and the side of the inner wall of the inclined channel 31c away from the second cylinder 3 are parallel to each other, so that a part of air can always flow on a path having an included angle of α with.
Referring to fig. 1 to 4, in one embodiment of the air suction structure of the compressor, one side of the air outlet 12 close to the inner wall of the second cylinder 3 is arranged in line with the inclined channel, and an included angle between one side of the air outlet 12 far from the inner wall of the second cylinder 3 and the end surface of the partition plate 2 is α.
Referring to fig. 4, a compressor is further provided according to an embodiment of the present invention.
In one embodiment, the compressor comprises the compressor air suction structure in any one of the above embodiments, and further comprises a crankshaft 6, a bearing and an accumulator. The liquid storage device is used for providing a low-temperature and low-pressure refrigerant, the liquid storage device is communicated with the first cylinder 1, the first cylinder 1 is provided with a suction hole 13, the refrigerant enters the first cylinder 1 from the suction hole 13, the first cylinder 1 is also provided with an air inlet hole 11, and air entering from the air inlet hole 11 enters the second cylinder 3 through an air outlet hole 12 of the first cylinder 1, a suction channel 21b and an inclined channel 31 c. The crankshaft 6 is disposed through the first cylinder 1, the partition plate 2 and the second cylinder 3, and the bearing is used for supporting the crankshaft 6, so that the crankshaft 6 can rotate and push the first piston 4 and the second piston 5 to move. The number of the bearings may be two, that is, an upper bearing 71 and a lower bearing 72, and the upper bearing 71 and the lower bearing 72 are respectively provided at both ends of the crankshaft 6.
The compressor of the above embodiment adopts the air suction structure of the compressor in any of the above embodiments, the eccentric amount of the crankshaft 6 is e, the inner diameter of the second piston 5 is d1, the distance between the side of the air suction channel 21 close to the inner wall of the second cylinder 3 and the axis of the second cylinder 3 is L which is not less than (0.5d1+ e +0.5), the communication between the air suction channel and the inner cavity of the second piston 5 is avoided when the second piston 5 moves, so as to avoid pressure leakage, the included angle α <90 ° is formed between the side of the air suction channel close to the inner wall of the second cylinder 3 and the end surface of the partition plate 2, so that the air suction channel 21 is obliquely arranged, the change of the gas flow direction during air suction is reduced as much as possible, the local loss of gas is reduced, and the air.
The embodiment of the invention also provides refrigeration and heating equipment which comprises the compressor in any one of the embodiments. In particular, the cooling and heating device may be a device having only a cooling function, a device having only a heating function, or a device having both cooling and heating functions, and the cooling and heating device may be a refrigerator, an air conditioner, a heat pump, or the like. The refrigerating and heating equipment in the embodiment reduces the change of the gas flow direction during air suction, reduces the local loss of gas and increases the working efficiency of the refrigerating and heating equipment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. The compressor air suction structure is characterized by comprising a first air cylinder, a partition plate and a second air cylinder, wherein the first air cylinder is provided with an air outlet hole close to the partition plate, an air suction channel for communicating the air outlet hole with the second air cylinder penetrates through the partition plate, a first piston is arranged in the first air cylinder, a second piston is arranged in the second air cylinder, the inner diameter of the second piston is d1, the vertical distance between one side, close to the inner wall of the second air cylinder, of the air suction channel and the axis of the second air cylinder is L which is greater than or equal to (0.5d1+ e +0.5) on the section passing through the central axis of a crankshaft and the central axis of the air suction channel, e is the eccentric amount of the crankshaft, and the included angle between one side, close to the inner wall of the second air cylinder, of the air suction channel and the end face, abutted against the second air cylinder, of the partition plate is α <90 degrees.
2. A compressor suction structure as claimed in claim 1, wherein: the second cylinder has been seted up certainly the second cylinder towards the terminal surface of baffle extends to the slope passageway of second cylinder inner chamber is crossing the center pin of bent axle reaches on the cross-section of the center pin of passageway of breathing in, the venthole is close to second cylinder inner wall one side the passageway of breathing in is close to second cylinder inner wall one side the slope passageway is close to second cylinder inner wall one side connects gradually, the venthole is kept away from second cylinder inner wall one side the passageway of breathing in is kept away from second cylinder inner wall one side the slope passageway is kept away from second cylinder inner wall one side connects gradually.
3. The compressor suction structure as claimed in claim 2, wherein in the cross section passing through the central axis of said crankshaft and the central axis of said suction passage, the included angle between the side of the inner wall of said suction passage adjacent to said second cylinder and the end surface of said partition plate abutting against said second cylinder is said α.
4. A compressor suction structure as claimed in claim 3, wherein: on the cross section passing through the central axis of the crankshaft and the central axis of the air suction channel, one side of the inclined channel, which is far away from the inner wall of the second cylinder, and one side of the air suction channel, which is far away from the inner wall of the second cylinder, are arranged in a collinear manner.
5. The compressor suction structure as set forth in claim 4, wherein: the height of the inclined channel is h1, the height of the second cylinder is h2, and the height is not less than 0.5 and not more than h1/h2< 1.
6. A compressor suction structure as claimed in claim 3, wherein: the inclined passage comprises an extending portion and an inclined portion, the extending portion is formed by axial extension of the surface of the second cylinder, the inclined portion is opposite to the axial inclination of the second cylinder, and the inclined portion extends to the communicating cavity of the second cylinder.
7. The suction structure of compressor as claimed in claim 6, wherein on the cross section passing through the central axis of said crankshaft and the central axis of said suction channel, the included angle between the side of the inner wall of said inclined portion away from said second cylinder and the end surface of said partition plate against said second cylinder is α.
8. A compressor suction structure as claimed in claim 2, wherein: on the section passing through the central shaft of the crankshaft and the central shaft of the air suction channel, the included angle between one side of the air suction channel, which is far away from the inner wall of the second air cylinder, and the end face, which is abutted against the second air cylinder, of the partition plate is 90 degrees.
9. The suction structure of compressor as claimed in claim 2, wherein in the cross section passing through the central axis of said crankshaft and the central axis of said suction channel, the side of said air outlet hole near the inner wall of said second cylinder is arranged in line with the central axis of said inclined channel, and the angle between the side of said air outlet hole far from the inner wall of said second cylinder and the end surface of said partition plate against said second cylinder is 90 ° or α.
10. A compressor, characterized by: a suction structure of a compressor including any one of claims 1 to 9, further comprising a motor, a crankshaft, a bearing for supporting the crankshaft, and a reservoir communicating with the first cylinder, the crankshaft being disposed through the first cylinder, the partition plate, and the second cylinder in this order.
11. Refrigeration equipment of heating which characterized in that: comprising the compressor of claim 10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911181414.8A CN110848140A (en) | 2019-11-27 | 2019-11-27 | Compressor air suction structure, compressor and refrigeration and heating equipment |
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| CN201911181414.8A CN110848140A (en) | 2019-11-27 | 2019-11-27 | Compressor air suction structure, compressor and refrigeration and heating equipment |
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| CN110848140A true CN110848140A (en) | 2020-02-28 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644926A (en) * | 2004-01-22 | 2005-07-27 | 三菱电机株式会社 | Double cylinder rotary compressor |
| JP2005240744A (en) * | 2004-02-27 | 2005-09-08 | Sanyo Electric Co Ltd | Two-stage rotary compressor |
| CN101568730A (en) * | 2006-12-28 | 2009-10-28 | Lg电子株式会社 | Hermetic compressor |
| CN105221425A (en) * | 2015-10-16 | 2016-01-06 | 广东美芝制冷设备有限公司 | Rotary compressor and the heat-exchange system with it |
| CN105386979A (en) * | 2015-12-07 | 2016-03-09 | 珠海凌达压缩机有限公司 | Compressor pump body and compressor with same |
| CN205841195U (en) * | 2016-06-17 | 2016-12-28 | 广东美芝制冷设备有限公司 | Compressor |
| CN109952439A (en) * | 2016-12-19 | 2019-06-28 | 东芝开利株式会社 | Rotary compressor and refrigerating circulatory device |
| CN110418892A (en) * | 2017-03-17 | 2019-11-05 | 大金工业株式会社 | Rotary compressor |
-
2019
- 2019-11-27 CN CN201911181414.8A patent/CN110848140A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644926A (en) * | 2004-01-22 | 2005-07-27 | 三菱电机株式会社 | Double cylinder rotary compressor |
| JP2005240744A (en) * | 2004-02-27 | 2005-09-08 | Sanyo Electric Co Ltd | Two-stage rotary compressor |
| CN101568730A (en) * | 2006-12-28 | 2009-10-28 | Lg电子株式会社 | Hermetic compressor |
| CN105221425A (en) * | 2015-10-16 | 2016-01-06 | 广东美芝制冷设备有限公司 | Rotary compressor and the heat-exchange system with it |
| CN105386979A (en) * | 2015-12-07 | 2016-03-09 | 珠海凌达压缩机有限公司 | Compressor pump body and compressor with same |
| CN205841195U (en) * | 2016-06-17 | 2016-12-28 | 广东美芝制冷设备有限公司 | Compressor |
| CN109952439A (en) * | 2016-12-19 | 2019-06-28 | 东芝开利株式会社 | Rotary compressor and refrigerating circulatory device |
| CN110418892A (en) * | 2017-03-17 | 2019-11-05 | 大金工业株式会社 | Rotary compressor |
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Application publication date: 20200228 |