JP3172094U - Compressor stator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stator of a compressor which reduces noise and oil circulation rate of a compressor. SOLUTION: A stator is installed inside a compressor, the stator includes an annular iron core and a plurality of stator coils, and a gap is formed vertically penetrating between adjacent stator coils inside the stator. .. Among them, a lid 20 is installed above the stator, an annular side 21 is installed on the lid and fixed on the stator, and the annular side forms a shielding component 22 inward. , The shielding component shields above the gap. [Selection diagram] Fig. 3

Description

  The present invention relates to a compressor and provides a stator that reduces noise and oil circulation rate.

Conventionally, this type of refrigerant circulation device forms a refrigerant circulation (refrigerant circuit) by sequentially connecting a rotary compressor (compressor), a gas cooler, a condenser (expansion valve), an evaporator, and the like to an annular pipe. The refrigerant gas is sucked from the suction port of the rotary compression component of the rotary compressor to the low pressure chamber side of the air cylinder, and then compressed by the operation of the roller and vane, and then a high temperature and high pressure refrigerant gas is formed. Subsequently, the gas is discharged from the high pressure chamber side through the exhaust hole and the exhaust silencer chamber to the gas refrigerator. The refrigerant gas is radiated by the gas refrigerator, condensed by the condenser, and then sent to the evaporator. Refrigerant is steamed with a steamer and absorbs ambient heat under the circumstances, and exhibits cooling effect.

As shown in FIGS. 1 and 2, the structure of the general compressor 10 includes an electric component 12 that is a driving component in the sealed container 11, and a rotary compression component 14 that is driven by a rotating shaft 123 of the electric component 12. . The electric component 12 includes an annular stator 121 installed on the inner surface of the upper space along the sealed container 11, and a rotor 122 installed by being inserted into a gap inside the stator 121. A rotating shaft 123 extending in the vertical direction is fixed on the rotor 122.

In addition, the stator 121 includes a laminated body of electromagnetic steel sheets folded in an annular shape, a stator coil 124 wound by a concentrated winding method, and a vertically penetrating gap 125 formed between adjacent stator coils 124. The refrigerant gas flows through the gap 125 between the adjacent stator coils 124 to generate acoustic resonance.

    The problem to be solved is that the noise during compressor operation increases.

  The present invention is installed inside a compressor, and the stator includes an annular iron core and a plurality of stator coils, and forms a vertically penetrating gap between adjacent stator coils inside the stator. Among them, a lid is installed above the stator, and an annular side is installed on the lid and fixed on the stator. A shielding component is formed on the annular side toward the inside, and the shielding is performed. The main feature of the part is that it shields the gap.

  The compressor stator of the present invention has the advantage of reducing compressor noise and oil circulation rate.

It is a structure instruction diagram of a general compressor. It is a stator structure instruction | indication figure of a well-known compressor. 1 is a structural exploded view of a first embodiment of a stator and a lid according to the present invention. It is a first embodiment structure instruction diagram of the stator and lid of the present invention. It is a structural three-dimensional figure of the 2nd Example of the cover body of this invention. It is a structure instruction | indication figure of the 2nd Example of the cover body of this invention.

The main object of the present invention is to provide a compressor stator that reduces noise and oil circulation rate.

The stator of the present invention is installed inside a compressor, and the stator includes an annular iron core and a plurality of stator coils, and the stator coils are arranged on a large number of gear portions around the inner side of the iron core by a concentrated winding method. In the stator, a gap penetrating vertically is formed between adjacent stator coils. Among them, a lid is provided above the stator, and the lid is provided with an annular side and fixed on the stator, and the annular side is formed with a shielding part toward the inside. The shielding component shields the gap and reduces compressor noise and oil circulation rate.

The present invention is an improvement of a stator in a general compressor. As shown in FIG. An electric component 12 for driving is installed in the hermetic container 11, and the electric component 12 is installed along an inner surface of the stator 121 and an annular stator 121 installed along the inner surface of the hermetic container 11. A rotor 122 is installed. A rotary shaft 123 extending in the vertical direction is fixed on the rotor 122, and a rotary compression component 14 driven by the rotary shaft 123 of the electric component 12 is installed below the sealed container 11.

As shown in FIGS. 3 and 4, the stator 121 includes an annular iron core 126 and a plurality of stator coils 124. The stator coil 124 is installed on a large number of gear portions 127 around the inner side of the iron core 126 by a concentrated winding method, and the interior of the stator 121 forms a gap 125 penetrating vertically between adjacent stator coils 124. Upper and lower frames 15 and 16 are installed above and below the iron core 126, respectively.

As an important point of the present invention, a lid 20 is installed above the stator 121, and an annular side 21 is installed on the lid 20 to be fixed to the stator 121. The annular side 21 forms a shielding component 22 toward the stator coil 124, and the shielding component 22 shields the gap 125 above. In the embodiment shown in the figure, the shielding component 22 forms a curved portion 222 along the side of each stator coil 124, and a sealing portion 224 is formed between the adjacent curved portions 222.

At the time of assembly, in the embodiment shown in the drawing, at least one fixing hole 211 is installed in the annular side 21, and a fixed lump 151 corresponding to the side rule of the upper frame 15 is formed, and the fixing hole 211 is formed. And the fixed mass 151 are fitted to each other to fix the lid 20 above the stator 121, and the sealing lid 224 seals the gap 125 above. Naturally, at least one fixed lump may be installed on the annular side, and the same fixing effect is achieved even if a corresponding fixing hole is formed on the side of the upper frame.

    The lid portion 224 of the cover of the present invention seals the upper part of each gap 125, thereby shutting out leakage of the refrigerant airflow from the gap, reducing the chance of sound cavity resonance, and further reducing noise during compressor operation. Also reduce the oil circulation rate. Further, at least one perforation 223 is installed on the curved portion 222, and the refrigerant gas is returned from the perforation 223 to the rotary compression component below, thereby maintaining a good heat dissipation effect.

As shown in the second embodiment of FIGS. 5 and 6, the shielding component 22 is formed relative to the upper portion 221 positioned above the stator coil 124, and each upper portion 221 is connected to the curved portion 222, and By forming at least one perforation 223 in the upper part 221, a good heat dissipation effect can be achieved.

In addition, each gear part 127 forms an insulating part 128 extending in the direction perpendicular to the gap 125 direction, and the sealing cover part 224 forms a notch 225 relative to the upper part of the insulating part 128 so that assembly is possible. This simplifies and makes it easier to place the insulating part 128 in the cutout 225.

The technical contents and technical features of the present invention are as described above, but those skilled in this field may implement replacements and modifications that do not depart from the spirit of the present invention based on the present invention presentation. Therefore, the scope of protection of the present invention is not limited to the embodiments, and replacements and modifications not departing from the present invention are also included in the following claims.

DESCRIPTION OF SYMBOLS 10 Compressor 11 Airtight container 12 Electric component 121 Stator 122 Rotor 123 Rotating shaft 124 Stator coil 125 Gap 126 Iron core 127 Gear part 128 Insulating component 14 Rotation compression component 15 Upper frame 151 Fixed block 16 Lower frame 20 Lid 21 Ring side 211 Fixing hole 22 Shielding part 221 Upper part 222 Curved part 223 Perforation 224 Sealing part 225 Notch

Claims (9)

The stator is installed inside the compressor, the stator includes an annular iron core and a plurality of stator coils, and is installed on a large number of gear portions around the inner side of the iron core by the stator coil concentrated winding method. In the stator of the compressor that forms a gap penetrating vertically between adjacent stator coils,
A lid is installed above the stator, and the lid is formed with an annular side and fixed on the stator. The annular side is formed with a shielding part toward the inside. A compressor stator characterized by shielding the upper part.   The shielding component forms a curved portion along each stator coil side, and connects adjacent curved portions to form a sealed lid portion, and the sealed lid portion seals above each gap relative to each other. The compressor stator according to claim 1.   3. The compressor stator according to claim 2, wherein the curved portion has at least one perforation.   The compressor stator according to claim 1, wherein the shielding part is formed on an upper portion opposite to the stator coil.   The compressor stator according to claim 4, wherein the upper portion is provided with at least one perforation.   4. The compressor stator according to claim 1, wherein the iron core is provided with an upper frame and a lower frame respectively on the upper and lower sides.   The annular side is provided with at least one fixed hole, and a corresponding fixed mass is formed on the side of the upper frame, or at least one fixed mass is provided on the annular side and is opposed to the side of the upper frame. The compressor stator according to claim 6, wherein a fixing hole is provided.   The said each gear part shape | molds the insulation component extended perpendicularly | vertically toward a space | gap location, and this sealing part respond | corresponds mutually on this insulation part, and forms a notch. The stator of the compressor according to 3.   4. The compressor stator according to claim 1, wherein the hermetic container is provided with a rotary compression part that is driven by a rotary shaft of the electric part in a lower part inside the sealed container.