JPS5980130A - Enclosed motor driven compressor - Google Patents

Abstract

PURPOSE:To reduce the height of a coil end and to reduce the size of a shaping machine by disposing a main winding and an auxiliary winding so as to be alternately displaced in height at the coil ends at both sides, and outwardly bending one winding of high height. CONSTITUTION:A main winding 15 and an auxiliary winding 16 contained in a stator 14 of a motor section 12 are disposed so that the inside auxiliary winding 16 is higher at the coil end than the outside main winding 15 at the coil end 17 and that the outside main winding 15 is higher at the coil end than the inside auxiliary winding 16 at the lower coil end 18 approaching a rotary compressor section 13 to be alternately displaced in height. The inside auxiliary winding 17 which is high at the coil end is outwardly bent to cover the winding 15 at the upper coil end 17, and the outside winding 15 which is high at the coil end is outwardly bent at the lower coil end 18 to form in the same height as the height of the coil end of the winding 16.

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to improvements in hermetic electric compressors.

(b) Prior art The conventional example is explained based on FIGS. 1 and 2. (1
) has an electric motor part (3) in the upper part of the airtight container (2), and an auxiliary winding (power) inside the lower part, and these two windings are arranged so that they are at the same height at the upper and lower coil end parts (81 (9)). The coil end part (81 (91) of the electric motor part (3)
The main winding (6) and the auxiliary winding (7) are bent and shaped together outward.

In this structure, the coil end part (8) of the electric motor part (3) (
9! Because the main winding (6) and the auxiliary winding (force) are bent outward together, the coil end part (8i (
9) It is difficult to reduce the height of the coil end shaping machine and the coil end shaping machine becomes large.

(c) Problems to be Solved by the Invention In view of the above-mentioned points, the present invention aims to miniaturize the coiler of the electric motor section.

B) Means for Solving the Problems The basic structure of the present invention is a hermetic electric compressor in which a motor section and a compressor section are housed in a closed container. The wire and the auxiliary winding are arranged so that their heights are alternately shifted at the coil ends on both sides, and one of the windings having a higher height at the coil end is bent and shaped outward. It is something.

With this configuration, one winding of the tall coil end of the main winding and auxiliary winding built into the stator of the motor section is bent and shaped, so the taller winding is located on the outside. The coil end portion on one side of the carp machine is made smaller.

(E) Embodiments of the Invention The present invention will be explained below based on the embodiments shown in FIGS. Closed compartment housing the compressor section (I3). It is formed with a main winding θ■ on the outside and an auxiliary winding 0■ on the inside. The main winding α5) and auxiliary winding α6) built into the stator 04) of the motor part 02) are connected to the upper coil end (lη is the inner auxiliary winding! +16+ is the outer main winding 05). At the same time, the height of the outer main winding 05) is made higher than the auxiliary winding α6) of the lower coil end part 08) close to the rotary compressor part α3). They are arranged so that their heights are offset from each other. The upper coil end part αγ is formed by bending and shaping the inner auxiliary winding (06), which has a high coil end height, outward to cover the outer main winding (1).The lower coil end part (18 ) is the lower coil end part of the inner auxiliary winding by bending and shaping the outer main winding with a higher coil end height 08) is the outer main winding with a higher coil end height Since the wire 0■ is bent outward and shaped to have the same height as the coil end height of the inner auxiliary winding t16), a sufficient insulation distance from the rotary compressor part α3) can be obtained, and the insulation distance can be minimized. By adjusting the size, the height of the hermetic container (11) can be reduced, and the hermetic electric compressor (10)r can be downsized. In addition, if the upper coil end force α and the lower coil end part 0 → i.e., either the main winding α or the auxiliary winding α 6) are bent and shaped outward, it will be possible to achieve more than the effect of the invention. The present invention provides a hermetic electric compressor in which a motor section and a compressor section are housed in a sealed container, in which the height of the coil end portions of the main winding and the auxiliary winding built in the stator of the motor section is Since the windings are arranged so as to be offset from each other and the windings on the higher side are bent and shaped outward, the coil end processing of the coil end portion can be completed by processing only the windings on the higher side.

Also, for one of the coil ends, simply bend and shape the taller outer winding to approximately the same height as the lower inner winding to make it the same height as the lower coil end. By incorporating a motor in which the coil ends are shaped so that they do not overlap, the hermetic electric compressor can be made smaller.

[Brief explanation of drawings]

1 and 2 show a conventional example, FIG. 1 is a sectional view of a hermetic electric compressor, FIG. 2 is a sectional view of the electric motor, FIGS. 3 and 4 show the present invention, and FIG. 3 is a sectional view of the hermetic electric compressor, and FIG. 4 is a sectional view of the electric motor section. 00)...Hermetic electric compressor, αη...Hermetically sealed container,
(121...Electric motor section, 03)...Rotary compressor section, 04)...Stator, (151...Main winding,
(161-... Auxiliary winding, c'n wire... Coil end part. - Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. In a hermetic electric compressor in which a motor section and a compressor section are housed in a sealed container, the main winding and auxiliary winding built in the stator of the motor section are alternately heated at the coil ends on both sides. The hermetic electric compressor is characterized in that the windings are arranged so that they are staggered, and one of the taller windings of the coil end is bent outward and shaped.