TWI524010B - Compression - Google Patents

Description

compressor

The present invention relates to a compressor which provides a compressor which can reduce noise and oil circulation rate.

Conventionally, such a refrigerant circulation device is configured by sequentially connecting a rotary compressor (compressor), a gas cooler, a condensation mechanism (expansion valve), and an evaporator to an annular pipe to constitute a refrigerant circulation (refrigerant circuit). The refrigerant gas is sucked into the low pressure chamber side of the cylinder from the suction port of the rotary compression element of the rotary compressor, and is compressed by the action of a roller and a vane to form a high-temperature high-pressure refrigerant gas, and then The high pressure chamber side is discharged to the gas cooler via the exhaust hole and the exhaust muffler chamber. After the refrigerant gas is released from the gas cooler, it is condensed by a condensation mechanism and then supplied to the evaporator. The refrigerant evaporates in the evaporator and in this case absorbs the surrounding heat to exert a cooling effect.

The compressor 10 is generally constructed as shown in the first and second figures, and includes: a motor element 12 as a driving element in the hermetic container 11; and a rotary compression element 14 driven by a rotating shaft 123 of the motor element 12, The motor element 12 is composed of a stator 121 that is annularly mounted on the inner surface of the upper space of the hermetic container 11, and a rotor 122 that is inserted into a gap provided inside the stator 121. A rotating shaft 123 extending in the vertical direction is fixed to the rotor 122.

The stator 121 has a laminated body of stacked annular electromagnetic steel sheets, and a stator coil 124 wound in a concentrated winding manner, and a gap 125 is formed between the adjacent stator coils 124; and the refrigerant gas flows through the adjacent stator The gap 125 between the coils 124 causes a cavity resonance, so the noise during operation is significantly increased.

The main object of the present invention is to provide a compressor which can reduce noise and oil circulation rate.

The electric component in the compressor of the present invention is provided with a stator and a rotor, the stator has an annular core, and a plurality of stator coils in a concentrated winding manner, wherein a gap between the adjacent stator coils is formed through the upper and lower gaps; A cover body is disposed above the stator, the cover body is provided with a shielding member, and the shielding member is formed with an upper portion and a curved portion on both sides of the upper portion along the stator coils, the upper portion is opposite to the stator coil, and the upper portion is disposed At least one perforation, each of the curved portions extends from the upper portion toward the gap, and a sealing portion is formed between the curved portions of the upper portions, and the cover portion is closed above the gaps to reduce the compressor. Noise and oil circulation rate.

The features of the present invention can be clearly understood by referring to the drawings and the detailed description of the embodiments.

The present invention is mainly directed to an improvement of a stator in a general compressor. As shown in the first figure, the compressor is also provided with a closed container 11 in which an electric component 12 for driving is provided, and the electric component 12 is provided. A stator 121 that is annularly mounted along the inner surface of the hermetic container 11 and a rotor 122 that is disposed inside the stator 121 are fixed to the rotor 122 with a rotating shaft 123 extending in a vertical direction. The closed container 11 is provided below the inside of the sealed container 11. A rotary compression element 14 driven by a rotating shaft 123 of the motor element 12.

As shown in the third to fifth figures, the stator 121 has an annular core 126 and a plurality of stator coils 124 that are mounted in a concentrated winding manner on a plurality of teeth 127 of the inner circumference of the core 126. In the stator 121, a gap 125 is formed between the adjacent stator coils 124, and the upper and lower frames 15 and 16 are respectively disposed above and below the core 126.

The focus of the present invention is that a cover body 20 is disposed above the stator 121. Please refer to the sixth figure at the same time. The cover body 20 is provided with a ring edge 21 fixed to the stator 121, and the ring edge 21 faces the stator coil. The cover member 22 is formed with a shielding member 22, and the shielding member 22 is formed with an upper portion 221 and a curved portion 222 on both sides of the upper portion 221, and the upper portion 221 is provided with at least one through hole 223, and each curved portion 222 is The upper portion 221 extends toward the gap 125, and a cap portion 224 is formed to be connected between the curved portions 222 of the upper portions 221.

In the embodiment shown in the figure, the ring edge 21 is provided with at least one fixing hole 211, and the corresponding side of the upper frame 15 forms a corresponding fixing block 151, and the fixing hole 211 and the fixing block 151 are utilized. Engaging with each other, the cover body 20 is fixed above the stator 121, and the upper portion 221 of the shielding member is located above the stator coil 124, and the cover portion 224 is correspondingly closed above the gaps 125; At least one fixing block may be disposed on the side of the ring, and the corresponding side of the upper frame forms a corresponding fixing hole, and the fixing effect can also be achieved.

By closing the gaps 125 by the cover portion 224 of the cover of the present invention, the refrigerant gas can be prevented from flowing through the gap, thereby reducing the chance of resonance of the sound chamber, thereby reducing noise during compressor operation and reducing oil circulation rate; The upper through hole 223 can reflow the refrigerant gas to the lower rotary compression element via the through hole 223 to maintain a better heat dissipation effect. Further, the curved portion 222 is provided with at least one through hole 223, which can also be maintained preferably. heat radiation.

Here, the seventh diagram is a diagram showing the amount of noise generated by the conventional compressor and the compressor of the present invention. As shown, the amount of noise during operation of the compressor of the present invention is relatively low at the same operating speed. Fig. 8 is a view showing an oil circulation rate of a conventional compressor and a compressor of the present invention. As shown, the oil circulation rate of the compressor of the present invention is relatively low at the same higher operating speed.

In addition, each of the tooth portions 127 is formed with a vertically extending insulating member 128 toward the gap 125, and the cover portion 224 is formed with a notch 225 corresponding to the upper portion of the insulating member 128, so as to facilitate assembly, the insulating member 128 can be assembled. The content is placed in the gap 225.

The technical content and technical features of the present invention are disclosed above, but those skilled in the art may still make various substitutions and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should be construed as being limited by the scope of the appended claims

10. . . compressor

11. . . sealed container

12. . . Electric component

121. . . stator

122. . . Rotor

123. . . Rotary axis

124. . . Stator coil

125. . . gap

126. . . core

127. . . Tooth

128. . . Insulation

14. . . Rotary compression element

15. . . Upper frame

151. . . Fixed block

16. . . Lower frame

20. . . Cover

twenty one. . . Ring edge

211. . . Fixed hole

twenty two. . . Shield

221. . . Upper

222. . . Curved part

223. . . perforation

224. . . Cover

225. . . gap

The first figure is a schematic diagram of the structure of a general compressor.

The second figure is a schematic view of the stator structure of a conventional compressor.

The third figure is an exploded view of the structure of the stator and the cover in the present invention.

The fourth figure is a schematic view of the structure of the stator and the cover body in the present invention.

The fifth figure is a schematic exploded view of the stator and the cover body in the present invention.

The sixth drawing is a schematic view of the structure of the cover body of the present invention.

The seventh drawing shows an explanatory diagram of the amount of noise generated by the conventional compressor and the compressor of the present invention.

The eighth drawing shows an explanatory diagram of the oil circulation rate which occurs in the conventional compressor and the compressor of the present invention.

121. . . stator

124. . . Stator coil

125. . . gap

126. . . core

127. . . Tooth

128. . . Insulation

15. . . Upper frame

151. . . Fixed block

16. . . Lower frame

20. . . Cover

twenty one. . . Ring edge

211. . . Fixed hole

twenty two. . . Shield

221. . . Upper

222. . . Curved part

223. . . perforation

224. . . Cover

225. . . gap

Claims (4)

A compressor comprising at least: a hermetic container; an electric component for driving, disposed in the hermetic container, the electric component being provided with a stator mounted in a ring shape along an inner surface of the hermetic container, and an insertion setting a rotor on the inner side of the stator, the rotor is fixed with a rotating shaft extending in a vertical direction, the stator has an annular core, and a plurality of stator coils, and the upper and lower frames are respectively arranged on the upper and lower sides, and the ring is provided There is at least one fixing hole, and the side of the upper frame forms a corresponding fixing block; or the ring side is provided with at least one fixing block, and the side of the upper frame forms a corresponding fixing hole, and the stator coil is concentrated. The winding body is disposed on a plurality of teeth of the inner circumference of the core, the stator is internally formed with a gap between the adjacent stator coils; and a cover body is disposed above the stator, the cover body is provided with a ring edge Fixed to the stator, the ring side is formed with a shielding member toward the stator coil, and the shielding member is formed with an upper portion and a curved portion on both sides of the upper portion along the stator coils, and the upper portion is located opposite to the stator Above the coil, the upper portion is provided with at least one perforation, and each of the curved portions extends from the upper portion toward the gap, and the upper curved portions are connected to each other to form a cover portion, and the cover portion corresponds to each Closed above the gap. The compressor of claim 1, wherein the curved portion is provided with at least one perforation. The compressor according to claim 1, wherein each of the tooth portions is formed with a vertically extending insulating member toward the gap, and the cover portion is formed with a notch corresponding to the upper portion of the insulating member. The compressor of any one of claims 1 to 3, wherein the compact A rotary compression element driven by a rotating shaft of the electric component is disposed below the inside of the closed container.