CN2844506Y - Rotary compressor - Google Patents

Abstract

The utility model discloses a rotary compressor which comprises a closed container, an electric mechanical part and a compressing mechanical part, wherein the closed container is composed of an outer shell, an upper cover and a lower cover. The electric mechanical part is positioned on the upper part of the closed container and is composed of a stator and a rotator; the compressing mechanical part is positioned on the lower part and comprises an air cylinder, an upper part bearing, a lower part bearing, a crankshaft and a rolling ring; a plurality of oblique slots which obliquely penetrate to the lower end surface from the upper end surface of the iron core are formed on an iron core of the rotor at intervals. The rotary compressor provided by the utility model uses the oblique slots which obliquely penetrate to the lower end surface from the upper end surface of the iron core on the iron core of the rotor to increase the cooling medium flux flowing through the electric mechanical part; accordingly, the temperature of the electric mechanical part can be quickly reduced, and accordingly, the service life of the electric mechanical part can be extended.

Description

Rotary compressor

Technical field

The utility model relates to a kind of rotary compressor, particularly relates to a kind ofly can reducing the temperature of electromechanical part rapidly, thus the rotary compressor that prolongs its working life.

Background technique

In general, compressor is a kind of machine of compressed fluid.This compressor is by the seal container with certain inner space, is installed in the electromechanical part that can produce driving force in the seal container and can utilizes the driving force of electromechanical part and the compression mechanical portion of compressed fluid constitutes.Fig. 1 is the rotary compressor longitudinal construction sectional view of prior art.As shown in Figure 1, the seal container of this prior art rotary compressor is made of cylindrical housing 3 and loam cake 4 and lower cover 5.One side of shell 3 is provided with refrigerant import 1, and the center portion of loam cake 4 then is provided with refrigerant exit 2.The electromechanical part on seal container top mainly by be fixed on cylindrical housing 3 inwalls stator 11 and the center of stator 11 and can by and stator 11 between the rotor 12 that is rotated of electromagnetic action form.The compression mechanical portion that is positioned at the seal container bottom then mainly comprises cylinder 45; Be installed in the upper bearing 42 on cylinder 45 upper-end surfaces; Be installed in the lower bearing 43 on cylinder 45 lower end surfaces; Run through the center of rotor 12 and cylinder 45, the bottom is formed with eccentric part 31a, can together rotate with rotor 12, thereby the rotating force that electromechanical part can be produced pass to the bent axle 31 of compression mechanical portion; With the outside that is enclosed within eccentric part 31a on the bent axle 31, can be rotated in the inside cavity of cylinder 45 and compressible refrigerant roll the ring 36.Because the center of gravity of eccentric part 31a does not overlap with the rotating center of bent axle 31, so when bent axle 31 the power energy imbalance can occur during high speed rotating in compressor, thereby become the main cause that compressor produces vibration and noise, add and load onto equilibrium block 6 and come trimming moment in order to address this problem common upper end portion and underpart at rotor 12.When the rotary compressor of this prior art moves, the rotor 12 at seal container central upper portion position will by and stator 11 between electromagnetic action carry out high speed rotating, drive simultaneously to run through the bent axle 31 at its center and be enclosed within rolling of bent axle 31 bottoms and encircle 36 also together rotations, thereby in the future self-circulation system and the refrigerant that enters cylinder 45 inside through refrigerant import 1 compress, refrigerant through overcompression will drain into electromechanical part from the exhaust port on the not shown upper bearing 42 then, at last from the refrigerant exit 2 that is arranged in loam cake 4 center portions and be expelled back into the circulatory system.But there is following point in the rotary compressor of this prior art: will produce a large amount of heats when rotor 12 carries out high speed rotating, and can only upwards flow by the slit C between rotor 12 and the stator 11 from the refrigerant that upper bearing 42 is discharged, because it is less to flow through the cold medium flux of electromechanical part, therefore can not take away the heat that rotor 12 produces rapidly, so it is too high and cause the problem that stator 11 coils damage Yin Wendu to occur, thereby shortens the working life of rotary compressor.

Summary of the invention

In order to address the above problem, the purpose of this utility model is to provide a kind of method that increases cold medium flux of can utilizing to reduce the temperature of electromechanics portion rapidly, thus the rotary compressor that increases the service life.

In order to achieve the above object, the rotary compressor that provides of the utility model comprises seal container, electromechanical part and compression mechanical portion; Wherein seal container is made of shell and loam cake and lower cover, and a side of shell is provided with the refrigerant import, and the center portion of loam cake then is provided with refrigerant exit; Electromechanical part is positioned at the top of seal container, mainly by be fixed on the outer casing inner wall stator and the center of stator and can by and stator between the rotor that is rotated of electromagnetic action form; Compression mechanical portion is positioned at the bottom of seal container, mainly comprise cylinder, respectively be installed in the cylinder upper and lower end face upper bearing and lower bearing, run through the center of rotor and cylinder, the bottom is formed with eccentric part, can together rotate with rotor, thereby the rotating force that electromechanical part produces can be passed to the bent axle of compression mechanical portion and be enclosed within the outside of bent axle lower eccentric portion, and can in cylinder, rotate the ring that rolls with compression refrigerant; Standoff distance is formed with a plurality of skewed slots that face tilt from its upper end extends through the lower end surface on the iron core of described rotor.

Described skewed slot tilts along same direction.

Described skewed slot equidistantly is distributed on the iron core of rotor.

The rotary compressor that the utility model provides is that a plurality of skewed slots that utilize on the rotor iron core face tilt from its upper end to extend through the lower end surface increase the cold medium flux that flows through electromechanical part, therefore can reduce the temperature of electromechanical part rapidly, thereby prolong its working life.

Description of drawings

Below in conjunction with the drawings and specific embodiments the rotary compressor that the utility model provides is elaborated.The parts identical with prior art use identical symbol, and omit its explanation of carrying out.

Fig. 1 is the rotary compressor longitudinal construction sectional view of prior art.

The rotary compressor longitudinal construction sectional view that Fig. 2 provides for the utility model.

Embodiment

As shown in Figure 2, the rotary compressor that provides of the utility model comprises seal container, electromechanical part and compression mechanical portion; Wherein seal container is made of shell 3 and loam cake 4 and lower cover 5, and a side of shell 3 is provided with refrigerant import 1, and the center portion of loam cake 4 then is provided with refrigerant exit 2; Electromechanical part is positioned at the top of seal container, mainly by be fixed on shell 3 inwalls stator 11 and the center of stator 11 and can by and stator 11 between the rotor 22 that is rotated of electromagnetic action form; Compression mechanical portion is positioned at the bottom of seal container, mainly comprise cylinder 45, respectively be installed in cylinder 45 upper and lower end faces upper bearing 42 and lower bearing 43, run through the center of rotor 22 and cylinder 45, the bottom is formed with eccentric part 31a, can together rotate with rotor 22, thereby the rotating force that electromechanical part produces can be passed to the bent axle 31 of compression mechanical portion and be enclosed within the outside of bent axle 31 31a of lower eccentric portion, and can in cylinder 45, rotate with rolling of compression refrigerant and encircle 36; Standoff distance is formed with a plurality of skewed slots 23 that face tilt from its upper end extends through the lower end surface on the iron core of described rotor 22.Described skewed slot 23 tilts along same direction, and equidistantly is distributed on the iron core of rotor 22.During the rotary compressor operation that provides when the utility model, the rotor 22 at seal container central upper portion position will by and stator 11 between electromagnetic action carry out high speed rotating, drive simultaneously to run through the bent axle 31 at its center and be enclosed within rolling of bent axle 31 bottoms and encircle 36 also together rotations, thereby in the future self-circulation system and the refrigerant that enters cylinder 45 inside through refrigerant import 1 compress, and the refrigerant through overcompression will drain into electromechanical part from the exhaust port on the not shown upper bearing 42 then.Owing to be formed with a plurality of skewed slots 23 on the iron core of rotor 22, to produce centrifugal force in the skewed slot 23 when rotor 22 high speed rotating on it, thereby will be drawn into the inside and the slit C between rotor 22 and the stator 11 of skewed slot 23 from the refrigerant that upper bearing 42 is discharged rapidly and upwards flow.Want many owing to flow through the relative prior art of cold medium flux of electromechanical part, therefore can reduce the temperature of electromechanical part rapidly, thereby can take away a large amount of heats that produce because of rotor 22 high speed rotating.The refrigerant of discharging from skewed slot 23 upper end-hole of rotor 22 will flow to the refrigerant exit 2 that is positioned at loam cake 4 center portions with vortex shape, and the refrigerant that flows out with the slit C between rotor 22 and stator 11 is expelled back into the circulatory system from refrigerant exit 2.

Claims (3)

1, a kind of rotary compressor comprises seal container, electromechanical part and compression mechanical portion; Wherein seal container is by shell (3) and loam cake (4) and lower cover (5) formation, and a side of shell (3) is provided with refrigerant import (1), and the center portion of loam cake (4) then is provided with refrigerant exit (2); Electromechanical part is positioned at the top of seal container, mainly by be fixed on the stator (11) on shell (3) inwall and be positioned at stator (11) the center and can by and stator (11) between the rotor (22) that is rotated of electromagnetic action form; Compression mechanical portion is positioned at the bottom of seal container, mainly comprise cylinder (45), respectively be installed in cylinder (45) upper and lower end face upper bearing (42) and lower bearing (43), run through the center of rotor (22) and cylinder (45), the bottom is formed with eccentric part (31a), can together rotate with rotor (22), the rotating force that thereby electromechanical part can be produced pass to the bent axle (31) of compression mechanical portion and be enclosed within the outside of bent axle (31) lower eccentric portion (31a), and can rotate in cylinder (45) and roll ring (36) with compression refrigerant; It is characterized in that: standoff distance is formed with a plurality of skewed slots (23) that face tilt from its upper end extends through the lower end surface on the iron core of described rotor (22).

2, rotary compressor according to claim 1 is characterized in that: described skewed slot (23) tilts along same direction.

3, rotary compressor according to claim 1 is characterized in that: described skewed slot (23) equidistantly is distributed on the iron core of rotor (22).

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