CN210484057U

CN210484057U - Horizontal compressor

Info

Publication number: CN210484057U
Application number: CN201921581137.5U
Authority: CN
Inventors: 方智祥; 张巍
Original assignee: Guangdong Meizhi Precision Manufacturing Co Ltd
Current assignee: Guangdong Meizhi Precision Manufacturing Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-08
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a horizontal compressor, horizontal compressor includes: the shell is provided with an exhaust pipe; the motor part is arranged in the shell and comprises a stator and a rotor, and the rotor is provided with a rotor fan; the compression mechanism part is arranged in the shell and divides the space in the shell into a motor part side and an oil cavity side, the exhaust pipe is arranged at one end of the shell adjacent to the motor part side, the compression mechanism part comprises a first bearing, a second bearing, a cylinder, a piston, a sliding sheet and a crankshaft, the crankshaft is arranged in the rotor in a penetrating mode, the upper end of the first bearing is not provided with a vent hole, and the lower end of the first bearing is provided with an oil through hole; the oil pipe part is established at oil chamber side and includes: a bottom wall; the oil pipe is arranged at the bottom of the peripheral wall and used for oiling, and the air exhaust structure is arranged at the top of the peripheral wall. According to the utility model discloses a horizontal compressor, the reliability of horizontal compressor is favorable to guaranteeing to solution horizontal compressor fuel feeding and motor cooling's problem that can be fine.

Description

Horizontal compressor

Technical Field

The utility model belongs to the technical field of the compressor technique and specifically relates to a horizontal compressor is related to.

Background

In the related art, in order to ensure cooling of a motor of a horizontal compressor and supply of oil to a refrigerator, an exhaust port of a conventional horizontal compressor is provided at an oil chamber side, and when the compressor is operated, exhaust gas is firstly discharged to cool the motor and then discharged from the exhaust port. By adopting the exhaust mode, because the exhaust gas can not completely pass through the motor, the cooling effect of the motor is not as good as that of a vertical compressor, and when high-temperature refrigerants such as R32 (chemical name is difluoromethane, molecular formula is CH2F2) and the like are used, the phenomenon of overheating of the motor can occur. Further, the gas flow path becomes long, and the exhaust resistance increases, resulting in a decrease in the efficiency of the horizontal compressor.

As shown in fig. 8, in a horizontal compressor in the related art, in order to ensure an internal gas path and an internal oil path of the compressor, the internal pressure of the compressor is distributed as follows: because of the existence of the rotor fan and the adoption of lower shell side exhaust of the compressor, when the compressor is operated, P1 is P2> P3, and because the oil cavity side pressure P3 is smaller than the pressure of the oil hole in the center of the crankshaft, the refrigerating machine oil can smoothly enter the center hole of the crankshaft from the oil feeding pipe, thereby lubricating the compression mechanism. Due to the existence of the diversion cavity, refrigerant gas discharged by the pump body firstly flows from the gap of the motor to the upper shell side and then returns to the lower shell side through the motor trimming. There is a pressure drop during the gas flow process, and there are P4> P5> P3. Although this scheme can guarantee the motor cooling, the gas flow path of above-mentioned technical scheme is long, and the circulation resistance is big, leads to compressor performance to reduce.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a horizontal compressor, which can improve the oil supply and motor cooling effect and improve the reliability.

According to the utility model discloses horizontal compressor, include: the exhaust pipe is arranged on the shell; the motor part is arranged in the shell and comprises a stator and a rotor arranged on the inner side of the stator, and a rotor fan is arranged on the rotor; the compression mechanism part is arranged in the shell and divides the space in the shell into a motor part side and an oil cavity side, the exhaust pipe is arranged at one end, close to the motor part side, of the shell, and the compression mechanism part comprises a first bearing, a second bearing, a cylinder, a piston, a sliding sheet and a crankshaft, wherein the first bearing and the second bearing are respectively arranged at two sides of the cylinder along the axial direction, the crankshaft is arranged in the rotor in a penetrating manner to transmit the torque of the motor part to the compression mechanism part, the upper end of the first bearing is free of air holes, and the lower end of the first bearing is provided with oil holes; an oil pipe component disposed at the oil cavity side and including: a bottom wall; and one end of the peripheral wall is connected with the bottom wall, the other end of the peripheral wall is connected with the second bearing, an oil pipe is arranged at the bottom of the peripheral wall and used for oiling, and an air exhaust structure is arranged at the top of the peripheral wall.

According to the utility model discloses horizontal compressor, compression mechanism portion cuts apart into motor chamber and oil pocket with compressor inside, and the upper end of compression mechanism portion does not have the air vent, can guarantee like this that compressor compression chamber exhaust refrigerant gas can not directly discharge to the oil pocket side. The lower end of the compression mechanism part is provided with an oil through hole (or a refrigerating machine oil circulation passage), so that the refrigerating machine oil on the side of the motor part can be ensured to smoothly flow back to the oil cavity side. During the operation of the horizontal compressor, the rotor fan generates negative pressure, which causes the pressure of the central hole at the inner side of the crankshaft to be reduced, thereby causing the air pressure in the oil pipe part to be reduced. Because of the existence of the oil pipe, the refrigerating machine oil can be sucked to lubricate the compression mechanism part; due to the existence of the air extraction structure, the rotor fan can suck away the refrigerant gas on the upper side of the oil cavity, so that the pressure of the oil cavity is reduced, the refrigerating machine oil flows back to the oil cavity side from the side of the motor part due to the action of the pressure difference, the oil level height is ensured, the reliability of the horizontal compressor is improved, and the oil supply problem of the horizontal compressor is well solved. According to the utility model discloses horizontal compressor, the reliability of horizontal compressor is favorable to guaranteeing to solution horizontal compressor fuel feeding and motor cooling's problem that can be fine.

In addition, according to the present invention, the horizontal compressor further has the following additional technical features:

according to some embodiments of the present invention, the housing includes an upper housing, a main housing, and a lower housing, the main housing is connected to the upper housing and the lower housing by welding, respectively, and the exhaust pipe is disposed on the upper housing; alternatively, the exhaust pipe is provided at one end of the main casing adjacent to the motor section side.

Further, the air exhaust structure is an air exhaust hole, and the inner diameter of the air exhaust hole is smaller than or equal to 4 mm.

In some embodiments of the present invention, the air exhaust structure is an air exhaust pipe, and a ratio of an inner diameter of the air exhaust pipe to a length thereof is greater than 0.01.

According to some embodiments of the invention, the rotor fan is provided at an end of the rotor remote from the compression mechanism portion.

According to some embodiments of the invention, the first bearing with the main casing body welding links to each other, the downside of first bearing is formed with the oil through hole.

Further, the difference between the inner diameter of the main shell and the outer diameter of the first bearing is less than 0.5 mm.

According to some embodiments of the utility model, the cylinder with the main casing body welding links to each other, the downside of cylinder is formed with the oil through hole.

Further, the difference between the inner diameter of the main shell and the outer diameter of the cylinder is less than 0.5 mm.

According to some embodiments of the present invention, the upper end of the first bearing is provided with an air vent, one side of the motor portion adjacent to the compression mechanism portion is provided with a partition plate, and a lower side of the partition plate is formed with the oil through hole.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a sectional view of a horizontal type compressor according to an embodiment of the present invention, in which a first bearing is not provided with a vent hole, showing a pumping structure of an embodiment;

fig. 2 is a sectional view of a horizontal type compressor according to an embodiment of the present invention, in which a first bearing is not provided with a vent hole, and a pumping structure of another embodiment is shown;

fig. 3 is a sectional view of a horizontal type compressor according to another embodiment of the present invention, in which a cylinder is not provided with a vent hole, showing a suction structure of an embodiment;

fig. 4 is a schematic view of a first bearing of the horizontal compressor according to the embodiment of the present invention in fig. 1, wherein no vent hole is formed on the first bearing;

fig. 5 is a sectional view of a horizontal type compressor according to still another embodiment of the present invention, in which a first bearing is provided with a vent hole, showing a pumping structure of an embodiment;

fig. 6 is a schematic view of a first bearing of the horizontal compressor according to the embodiment of the present invention in fig. 5, wherein the first bearing is provided with a vent hole;

fig. 7 is a sectional view of a horizontal type compressor according to still another embodiment of the present invention, in which the first bearing is not provided with a vent hole, showing a suction structure of an embodiment in which a discharge pipe is provided on a main casing;

fig. 8 is a sectional view of a horizontal type compressor in the related art, in which the same components as those of the present application are distinguished by a prime (') added thereto.

Reference numerals:

the horizontal type compressor 100 is provided with a horizontal type compressor,

a housing 1, an exhaust pipe 10, an upper housing 11, a main housing 12, a lower housing 13,

a motor part 2, a stator 21, a rotor 22, a rotor fan 23,

a compression mechanism part 3, a first bearing 31, a vent hole 311, an oil through hole 312, a second bearing 32, a cylinder 33, a piston 34, a slide plate 35, a crankshaft 36,

the oil pipe part 4, the bottom wall 41, the peripheral wall 42, the oil pipe 421, the air exhaust structure 422,

a partition 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A horizontal compressor 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings. For example, the horizontal compressor 100 may be a horizontal rotary compressor or the like.

Referring to fig. 1, a horizontal compressor 100 according to an embodiment of the present invention includes: a housing 1, a motor part 2, a compression mechanism part 3, and an oil pipe member 4.

Specifically, the casing 1 may be provided with an exhaust pipe 10; the motor part 2 is arranged in the shell 1, the motor part 2 comprises a stator 21 and a rotor 22, the rotor 22 can be arranged inside the stator 21, and the rotor 22 can be provided with a rotor fan 23.

The compression mechanism portion 3 is provided inside the housing 1, and the compression mechanism portion 3 can divide a space inside the housing 1 into a motor portion side and an oil chamber side. The exhaust duct 10 is provided at an end of the casing 1 adjacent to the motor section side, for example, the exhaust duct 10 may be provided at a left end of the motor section 2 shown in fig. 1, which is advantageous for better cooling of the motor section 2.

The compression mechanism portion 3 may include a first bearing 31, a second bearing 32, a cylinder 33, a piston 34, a vane 35, and a crankshaft 36, wherein the first bearing 31 and the second bearing 32 are respectively provided on both sides of the cylinder 33 in the axial direction, for example, the first bearing 31 may be located on the left side of the cylinder 33 shown in fig. 1, and the first bearing 31 may be a main bearing; the second bearing 32 may be located at the right side of the cylinder 33 shown in fig. 1, the second bearing 32 may be an auxiliary bearing, and the crankshaft 36 is disposed in the rotor 22, so that the torque of the motor portion 2 can be transmitted to the compression mechanism portion 3 through the crankshaft 36, and the compression mechanism portion 3 is driven to compress the refrigerant.

In some optional embodiments of the present invention, the upper end of the compressing mechanism part 3 is not provided with the vent hole 311, so that it can be ensured that the refrigerant discharged from the compressor body does not enter the oil cavity through the compressing mechanism part 3; and the lower end of the compression mechanism portion 3 is provided with an oil passing hole 312, which is advantageous to ensure oil circulation.

Referring to fig. 1, an oil pipe member 4 is provided at the oil chamber side, and the oil pipe member 4 may include: a bottom wall 41 and a peripheral wall 42. Specifically, one end of the peripheral wall 42 (e.g., the right end of the peripheral wall 42 in fig. 1) is connected to the bottom wall 41, and the other end of the peripheral wall 42 (e.g., the left end of the peripheral wall 42 in fig. 1) may be connected to the second bearing 32, the bottom of the peripheral wall 42 being provided with an oil pipe 421 for oiling, and the top of the peripheral wall 42 being provided with an air suction structure 422.

According to the embodiment of the present invention, the refrigerant gas is discharged from the housing end of the motor unit side of the horizontal compressor 100. The exhaust mode is the same as the exhaust mode of the vertical compressor, and the cooling effect of the motor is equivalent to that of the vertical compressor. Since the compressor exhausts air by discharging it from the casing end of the motor section, if the compressor is not changed, the oil chamber side pressure is higher than the motor section side pressure, which may result in a decrease in the oil chamber side oil level.

Based on the contradiction above the solution, according to the utility model discloses horizontal compressor 100 through set up air exhaust structure 422 on oil pipe part 4, and because the upper end of compression mechanism portion 3 does not have air vent 311 and connects motor portion side and oil pocket side, horizontal compressor 100 operation in-process, because rotor fan 23's effect, the gaseous refrigerant of oil pocket is taken away, pressure reduction, and refrigerator oil flows into the oil pocket side, assurance oil level that can be fine to be favorable to promoting horizontal compressor 100's reliability.

According to the utility model discloses horizontal compressor 100, compression mechanism portion 3 cuts apart into motor chamber and oil pocket with the compressor is inside, and compression mechanism portion 3's upper end does not have air vent 311, can guarantee like this that compressor compression chamber exhaust refrigerant gas can not directly discharge to the oil pocket side. The lower end of the compression mechanism portion 3 is provided with an oil passage hole 312 (or a refrigerating machine oil passage) so that the refrigerating machine oil on the motor portion side can be ensured to smoothly flow back to the oil chamber side. During the operation of the horizontal compressor 100, the rotor fan 23 generates a negative pressure, which causes a pressure decrease in the center hole inside the crankshaft 36, thereby causing a pressure decrease in the oil pipe part 4. Due to the presence of the oil pipe 421, the refrigerating machine oil can be sucked to lubricate the compression mechanism part 3; due to the existence of the air exhaust structure 422, the rotor fan 23 can suck away the refrigerant gas on the upper side of the oil cavity, so that the pressure of the oil cavity is reduced, and the refrigerant oil flows back to the oil cavity side from the side of the motor part due to the action of pressure difference, so that the oil surface height is ensured, the reliability of the horizontal compressor 100 is improved, and the oil supply problem of the horizontal compressor 100 is well solved.

According to the utility model discloses horizontal compressor 100, the reliability of horizontal compressor 100 is favorable to guaranteeing to the horizontal compressor fuel feeding of solution and motor cooling's that can be fine problem.

As shown in fig. 1, according to some embodiments of the present invention, the housing 1 may include an upper housing 11, a main housing 12 and a lower housing 13, the main housing 12 is welded to the upper housing 11 and the lower housing 13, respectively, and the exhaust pipe 10 may be disposed on the upper housing 11. Alternatively, the exhaust pipe 10 may be located at a position higher than the oil level of the upper case 11.

According to the embodiment of the present invention, the refrigerant gas is discharged from the upper housing end of the motor portion side of the horizontal compressor 100. The exhaust mode is the same as the exhaust mode of the vertical compressor, and the cooling effect of the motor is equivalent to that of the vertical compressor. Because the compressor exhausts air by using the upper shell, if the air is not changed, the pressure of the oil cavity side is higher than that of the motor cavity side, and the oil surface of the oil cavity side is reduced.

Of course, the present invention is not limited thereto, and in some alternative embodiments of the present invention, the exhaust pipe 10 may be provided at an end of the main housing 1 adjacent to the side of the motor portion. For example, the exhaust pipe 10 may also be provided on the main casing 12, and the exhaust pipe 10 may be located at a position of the main casing 12 at the motor section side left end, or the like. Alternatively, the exhaust pipe 10 may be located at a position higher than the oil level of the main casing 12.

Referring to fig. 1, 3 and 5, in some alternative embodiments of the present invention, the air exhaust structure 422 may be an air exhaust hole, and the air exhaust hole may include one or more, and in the description of the present invention, the meaning of "a plurality" refers to two or more.

In some embodiments of the present invention, the diameter of the central hole inside the crankshaft 36 may be 5mm, and the inner diameter of the pumping hole is not greater than the diameter of the central hole, for example, in some alternative embodiments of the present invention, the inner diameter of the pumping hole may be less than or equal to 4 mm. Therefore, refrigerant gas on the upper side of the oil cavity is sucked away through the air suction hole through the rotor fan 23, so that the pressure of the oil cavity is reduced, the refrigerating machine oil flows back to the oil cavity side from the side of the motor part due to the action of pressure difference, the oil surface height is ensured, the reliability of the horizontal compressor 100 is improved, and the oil supply problem of the horizontal compressor 100 is well solved.

The present invention is not limited to this, referring to fig. 2, in some embodiments of the present invention, the air exhaust structure 422 may also be an air exhaust pipe, and the ratio of the inner diameter of the air exhaust pipe to the length thereof is greater than 0.01. It can be understood that if the exhaust pipe is too thin, the throttling function can be achieved, and if the exhaust pipe is too thick, the air exhaust effect is not ideal, so that the ratio of the inner diameter of the exhaust pipe to the length of the exhaust pipe is greater than 0.01, the air exhaust effect can be guaranteed, the problems of oil supply of the horizontal compressor and cooling of the motor can be solved, and the reliability of the horizontal compressor 100 can be guaranteed.

For example, in some alternative embodiments of the present invention, the inner diameter of the extraction tube may be less than or equal to 4 mm. The ratio of the inner diameter of the exhaust pipe to the length of the exhaust pipe is greater than 0.01, but the utility model is not limited to the same.

Referring to fig. 1, according to some embodiments of the present invention, a rotor fan 23 may be provided at an end of the rotor 22 away from the compression mechanism portion 3. For example, the rotor fan 23 may be provided at the left end of the rotor 22 shown in fig. 1.

In some alternative embodiments of the present invention, the compression mechanism portion 3 and the main housing 12 may be connected by welding.

Referring to fig. 1 and 2, according to some embodiments of the present invention, the first bearing 31 is connected to the main housing 12 by welding, the first bearing 31 may be connected to the main housing 12 by spot welding, for example, no air hole 311 (refer to fig. 4) is formed at the upper end of the first bearing 31, and an oil hole 312 is formed at the lower end of the first bearing 31. Therefore, the upper end of the first bearing 31 is not provided with the vent hole 311, so that the refrigerant discharged by the compressor body can be ensured not to enter an oil cavity through the compression mechanism part 3 such as the first bearing 31; the lower end of the first bearing 31 is provided with an oil passing hole 312, which is advantageous for ensuring oil circulation.

Further, the difference between the inner diameter of the main housing 12 and the outer diameter of the first bearing 31 is less than 0.5 mm. Therefore, the relative sealing of the motor part side and the oil cavity side can be well ensured, the refrigerant discharged from the compression mechanism part 3 is mainly discharged from the exhaust pipe 10 after cooling the motor (the motor part), and only a very small amount of gas leaks to the oil cavity side through the gap of the compression mechanism part 3.

Referring to fig. 3, according to some embodiments of the present invention, the cylinder 33 is welded to the main housing 12, the upper end of the cylinder 33 has no air hole 311, and the lower end of the cylinder 33 is provided with an oil hole 312. Therefore, the upper end of the cylinder 33 is not provided with the vent hole 311, so that the refrigerant discharged by the compressor body can be ensured not to enter an oil cavity through the compression mechanism part 3 such as the cylinder 33; the lower end of the cylinder 33 is provided with an oil passing hole 312, which is advantageous for ensuring oil circulation.

Further, the difference between the inner diameter of the main housing 12 and the outer diameter of the cylinder 33 is less than 0.5 mm. Therefore, the relative sealing of the motor part side and the oil cavity side can be well ensured, the refrigerant discharged from the compression mechanism part 3 is mainly discharged from the exhaust pipe 10 after cooling the motor, and only a small amount of gas leaks to the oil cavity side through the gap of the compression mechanism part 3.

Referring to fig. 5 and 6, according to some embodiments of the present invention, the upper end of the compression mechanism portion 3 is provided with an air vent 311, and the lower end of the compression mechanism portion 3 may be provided with an oil vent hole 312, one side of the compression mechanism portion 3 adjacent to the motor portion 2 is provided with a partition plate 5, the partition plate 5 may be provided on the left side of the first bearing 31, and the air vent 311 may be blocked by the partition plate 5.

It is understood that if the partition plate 5 is not provided, the refrigerant flows from the motor portion side to the oil chamber side after cooling the motor through the vent hole 311, and is then discharged. The present application is configured such that the air hole 311 is blocked by providing the partition plate 5 on the left side of the first bearing 31, so that gas does not flow on the motor portion side and the oil chamber side via the air hole 311.

According to the utility model discloses horizontal compressor 100, compression mechanism portion 3 cuts apart into motor chamber and oil pocket with the compressor is inside, and compression mechanism portion 3's upper end does not have air vent 311, can guarantee like this that compressor compression chamber exhaust refrigerant gas can not directly discharge to the oil pocket side. The lower end of the compression mechanism portion 3 is provided with an oil passage hole 312 (or a refrigerating machine oil passage) so that the refrigerating machine oil on the motor portion side can be ensured to smoothly flow back to the oil chamber side. Meanwhile, the rotor fan 23 is installed on the rotor 22 of the horizontal compressor 100, and the rotor fan 23 operates to produce negative pressure during the operation of the compressor. The second bearing 32 is provided with an oil pipe part 4, and the oil pipe part 4 includes an oil pipe 421 for sucking refrigerating machine oil and a suction structure 422 for sucking air. Because the rotor fan 23 generates negative pressure, the refrigerant on the oil chamber side is pumped away by the air pumping structure 422 due to the action of the pressure difference, the oil chamber side pressure is reduced, and the oil level height is ensured.

According to the utility model discloses horizontal compressor 100, oil pipe part 4 includes oil pipe 421 and air exhaust structure 422. In the operation process of the horizontal compressor 100, because of the existence of the rotor fan 23, the gas leaked to the oil chamber side is pumped out by the rotor fan 23, so that the oil chamber side pressure is reduced, and because the side pressure of the motor is larger than the side pressure of the oil chamber, the flow of the refrigerating machine oil from the side of the motor to the side of the oil chamber is facilitated, so that the oil level height in the operation process of the horizontal compressor 100 can be ensured, and the reliability of the horizontal compressor 100 is improved.

The horizontal compressor 100 according to the embodiment of the present invention includes a housing 1, a compression mechanism 3, a motor 2, and an oil pipe 4. The compression mechanism 3 includes a first bearing 31, a second bearing 32, a cylinder 33, a piston 34, a vane 35, and a crankshaft 36 (e.g., an eccentric crankshaft). The crankshaft 36 passes through the rotor 22 and transmits the motor torque to the compression mechanism portion 3, which drives the compression mechanism portion 3 to compress the refrigerant. The compression mechanism portion 3 is connected to the housing 1 by welding, and the compressor mechanism portion 3 divides the interior of the compressor into a motor portion side and an oil chamber side. The oil sump at the lower end of the oil chamber is communicated with the side oil sump of the motor unit through an oil through hole 312. The upper end of the oil chamber side and the upper end of the motor section side are not provided with a vent hole 311.

The utility model discloses an oil pipe part 4 is equipped with rotor fan 23 including the structure 422 (for example aspirating hole or exhaust tube etc.) and the oil pipe 421 of pumping of bleeding on the electric motor rotor 22, just horizontal compressor 100 adopts casing 11 to exhaust. Due to the action of the rotor fan 23, the gas at the oil chamber side can be pumped to the motor side, so that the pressure at the oil chamber side is reduced, and the oil level height of the horizontal compressor 100 can be well ensured.

The utility model discloses horizontal compressor 100, fine assurance the use reliability of compressor when horizontal compressor 100 adopted the 1 exhaust scheme of casing.

Specific embodiments of the horizontal compressor 100 according to the present invention will be described below with reference to the accompanying drawings.

The first embodiment is as follows:

The compression mechanism portion 3 is provided inside the housing 1, and the compression mechanism portion 3 can divide a space inside the housing 1 into a motor portion side and an oil chamber side. The exhaust duct 10 is provided at an end of the casing 1 adjacent to the motor section side, for example, the exhaust duct 10 may be provided at a left end of the motor section 2 shown in fig. 1, so that the motor section 2 can be cooled better.

According to the embodiment of the present invention, the refrigerant gas is discharged from the upper housing end of the motor portion side of the horizontal compressor 100. The exhaust mode is the same as the exhaust mode of the vertical compressor, and the cooling effect of the motor is equivalent to that of the vertical compressor. Since the compressor exhausts air using the upper case, if not varied, the oil chamber side pressure is higher than the motor side pressure, resulting in a decrease in the oil chamber side oil level.

Referring to fig. 1, 3 and 5, in some alternative embodiments of the present invention, the air exhaust structure 422 may be an air exhaust hole, and the air exhaust hole may include one or more, and in the description of the present invention, "a plurality" means two or more.

In some embodiments of the present invention, the diameter of the central hole inside the crankshaft 36 may be 5mm, and the inner diameter of the pumping hole is not greater than the diameter of the central hole, for example, in some optional embodiments of the present invention, the inner diameter of the pumping hole is not greater than 4 mm. Therefore, the rotor fan 23 can suck the refrigerant gas on the upper side of the oil cavity through the air suction hole, the pressure of the oil cavity is reduced, the refrigerating machine oil can flow back to the oil cavity side from the side of the motor part due to the action of the pressure difference, the oil surface height is ensured, the reliability of the horizontal compressor 100 is improved, and the oil supply problem of the horizontal compressor 100 is well solved.

Referring to fig. 1, according to some embodiments of the present invention, a rotor fan 23 may be provided at an end of the rotor 22 away from the compression mechanism portion 3. For example, the rotor fan 23 may be provided at the left end of the rotor 22.

Further, the difference between the inner diameter of the main housing 12 and the outer diameter of the first bearing 31 is less than 0.5 mm. Therefore, the relative sealing of the motor part side and the oil cavity side can be well ensured, the refrigerant discharged from the compression mechanism part 3 is mainly discharged from the exhaust pipe 10 after cooling the motor, and only a small amount of gas leaks to the oil cavity side through the gap of the compression mechanism part 3.

According to the utility model discloses horizontal compressor 100, compression mechanism portion 3 cuts apart into motor chamber and oil pocket with the compressor is inside, and compression mechanism portion 3's upper end does not have air vent 311, can guarantee like this that compressor compression chamber exhaust refrigerant gas can not directly discharge to the oil pocket side. The lower end of the compression mechanism portion 3 is provided with an oil passage 312 (or a refrigerating machine oil passage) so as to ensure that the refrigerating machine oil on the motor chamber side smoothly flows back to the oil chamber side. Meanwhile, the rotor fan 23 is installed on the rotor 22 of the horizontal compressor 100, and the rotor fan 23 operates to produce negative pressure during the operation of the compressor. The second bearing 32 is provided with an oil pipe part 4, and the oil pipe part 4 includes an oil pipe 421 for sucking refrigerating machine oil and a suction structure 422 for sucking air. Because the rotor fan 23 generates negative pressure, the refrigerant on the oil chamber side is pumped away by the air pumping structure 422 due to the action of the pressure difference, the oil chamber side pressure is reduced, and the oil level height is ensured.

According to the utility model discloses horizontal compressor 100, fine assurance the use reliability of compressor when horizontal compressor 100 adopts the exhaust scheme of casing 1.

Example two:

the second embodiment is substantially the same as the first embodiment except that, in the second embodiment, referring to fig. 2, in some embodiments of the present invention, the air exhaust structure 422 may be an air exhaust pipe, and a ratio of an inner diameter of the air exhaust pipe to a length thereof is greater than 0.01. It can be understood that if the exhaust pipe is too thin, the throttling function can be achieved, and if the exhaust pipe is too thick, the air exhaust effect is not ideal, so that the ratio of the inner diameter of the exhaust pipe to the length of the exhaust pipe is greater than 0.01, the air exhaust effect can be guaranteed, the problems of oil supply of the horizontal compressor and cooling of the motor can be solved, and the reliability of the horizontal compressor 100 can be guaranteed.

Example three:

the third embodiment is substantially the same as the first embodiment except that, in the third embodiment, referring to fig. 3, according to some embodiments of the present invention, the cylinder 33 is connected to the main housing 12 by welding, the upper end of the cylinder 33 has no air hole 311, and the lower end of the cylinder 33 is provided with an oil hole 312. Therefore, the upper end of the cylinder 33 is not provided with the vent hole 311, so that the refrigerant discharged by the compressor body can be ensured not to enter an oil cavity through the compression mechanism part 3 such as the cylinder 33; the lower end of the cylinder 33 is provided with an oil passing hole 312, which is advantageous for ensuring oil circulation.

Example four:

the fourth embodiment is substantially the same as the first embodiment except that, in the fourth embodiment, referring to fig. 5 and 6, according to some embodiments of the present invention, an upper end of the compression mechanism portion 3 is provided with a vent hole 311, a lower end of the compression mechanism portion 3 may be provided with an oil through hole 312, a side of the compression mechanism portion 3 adjacent to the motor portion 2 is provided with a partition plate 5, the partition plate 5 may be provided on a left side of the first bearing 31, and the vent hole 311 may be blocked by the partition plate 5.

Example five:

the fifth embodiment is substantially the same as the first embodiment except that, referring to fig. 7, the exhaust pipe 10 is disposed at a position different from the position at which the exhaust pipe 10 is disposed in the first embodiment.

In particular, in some alternative embodiments of the present invention, the exhaust pipe 10 may also be provided at an end of the main housing 1 adjacent to the motor portion side. For example, the exhaust pipe 10 may also be provided on the main casing 12, and the exhaust pipe 10 may be located at a position of the main casing 12 at the motor section side left end, or the like. Alternatively, the exhaust pipe 10 may be located at a position higher than the oil level of the main casing 12.

It is understood that, in the second embodiment, the third embodiment and the fourth embodiment, the position of the exhaust pipe 10 may also be disposed at one end of the main housing 1 adjacent to the motor portion side, which is understood by those skilled in the art and will not be described herein again.

Other configurations and operations of the horizontal compressor 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A horizontal compressor, comprising:

the exhaust pipe is arranged on the shell;

the motor part is arranged in the shell and comprises a stator and a rotor arranged on the inner side of the stator, and a rotor fan is arranged on the rotor;

the compression mechanism part is arranged in the shell and divides the space in the shell into a motor part side and an oil cavity side, the exhaust pipe is arranged at one end, close to the motor part side, of the shell, and the compression mechanism part comprises a first bearing, a second bearing, a cylinder, a piston, a sliding sheet and a crankshaft, wherein the first bearing and the second bearing are respectively arranged at two sides of the cylinder along the axial direction, the crankshaft is arranged in the rotor in a penetrating manner to transmit the torque of the motor part to the compression mechanism part, and the upper end of the compression mechanism part is free of air holes and the lower end of the compression mechanism part is provided with oil holes;

an oil pipe component disposed at the oil cavity side and including:

a bottom wall;

and one end of the peripheral wall is connected with the bottom wall, the other end of the peripheral wall is connected with the second bearing, an oil pipe is arranged at the bottom of the peripheral wall and used for oiling, and an air exhaust structure is arranged at the top of the peripheral wall.

2. The horizontal compressor according to claim 1, wherein the housing comprises an upper housing, a main housing, and a lower housing, the main housing is welded to the upper housing and the lower housing, respectively, and the discharge pipe is provided on the upper housing; alternatively, the exhaust pipe is provided at one end of the main casing adjacent to the motor section side.

3. The horizontal compressor according to claim 2, wherein the air exhaust structure is an air exhaust hole having an inner diameter of 4mm or less.

4. The horizontal compressor according to claim 2, wherein the air extracting structure is an air extracting pipe, and the ratio of the inner diameter of the air extracting pipe to the length of the air extracting pipe is greater than 0.01.

5. The horizontal compressor according to claim 1, wherein the rotor fan is provided at an end of the rotor remote from the compression mechanism section.

6. The horizontal compressor according to any one of claims 2 to 5, wherein the first bearing is welded to the main housing, and an upper end of the first bearing is free of a vent hole and a lower end thereof is provided with an oil through hole.

7. The horizontal compressor according to claim 6, wherein the difference between the inner diameter of the main shell and the outer diameter of the first bearing is less than 0.5 mm.

8. The horizontal compressor according to any one of claims 2 to 5, wherein the cylinder is welded to the main shell, and has no air vent at an upper end and an oil through hole at a lower end.

9. The horizontal compressor according to claim 8, wherein the difference between the inner diameter of the main shell and the outer diameter of the cylinder is less than 0.5 mm.

10. The horizontal compressor according to any one of claims 2 to 5, wherein an air vent hole is provided at an upper end of the compression mechanism portion and an oil vent hole is provided at a lower end thereof, and a partition plate is provided at a side of the compression mechanism portion adjacent to the motor portion, the partition plate blocking the air vent hole.