JPH087106Y2 - Hermetic electric compressor - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a lead wire of a hermetic electric compressor.

[Conventional technology]

FIG. 4 is a sectional view of a conventional hermetic electric compressor disclosed in, for example, Japanese Patent Laid-Open No. 2-37179.
(1) is a closed container, which is composed of an upper closed container (1a) and a lower closed container (1b). (2) is an electric element housed in the closed container (1), and is composed of a stator (3) and a rotor (4). (5) is the upper closed container (1a)
Terminal terminals to be placed on the upper part of the coil, and multiple lead wires (6) drawn out from the coil end (3a) of the stator.
It is connected to the. (7) is a heat-shrinkable tube for fixing the lead wire (6), and (8) is a compression element driven by the electric element (2).

FIG. 5 is a sectional view of another conventional hermetic electric compressor disclosed in, for example, Japanese Patent Laid-Open No. 58-170893, in which (9) is provided above the rotor (4). It is an oil separator and rotates with the rotor (4).

[Problems to be solved by the device]

Since the conventional hermetic electric compressor is configured as described above, when the lead wire comes into contact with the upper hermetic container, the lead wire is heated by the heat when the upper hermetic container and the lower hermetic container are welded. There were problems such as welding to a closed container, resulting in poor insulation, and lead wires coming into contact with the oil separator, resulting in poor insulation as well.

The present invention has been made to solve the above problems, and an object thereof is to obtain a high-quality hermetic electric compressor in which insulation failure due to contact of lead wires does not occur.

[Means for solving the problem]

In the hermetic electric compressor according to the present invention, a liner is welded and fixed to an upper hermetic container, and a protective sheet made of insulating paper is attached to the liner.

[Action]

The hermetic electric compressor according to the present invention does not cause insulation failure even if the lead wire comes into contact with the hermetic container, and even if there is an oil separation device on the upper part of the rotor, the length of the lead wire has a margin. Selection is possible and workability is not impaired.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. In the figure, (10) is a liner fixed to the upper closed container (1a) by projection welding or arc spot welding, and is equipped with a protective sheet (11) made of insulating paper.

Even if the lead wire (6) does not directly contact the upper closed container (1a) and the heat generated when the upper closed container (1a) and the lower closed container (1) are welded, the protective sheet Insulation failure does not occur due to (11).

Further, when the oil separation device (9) is mounted on the upper part of the rotor (4), the lead wire (6) cannot be shortened, but in this embodiment, since the protective sheet (11) is provided, the lead The length of the wire (5) can be selected to be long, and workability is not impaired.

[Effect of device]

As described above, according to the present invention, since the liner is welded and fixed to the upper closed container and the protective sheet made of insulating paper is attached to the liner, there is no insulation failure due to contact with the lead wire, and the lead wire does not exist. The length can be selected longer and the workability can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part showing a hermetic electric compressor according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG.
1 is a perspective view showing the liner of FIG. 1, FIG. 4 is a sectional view showing a conventional hermetic electric compressor partially cut away, and FIG. 5 is a sectional view showing another conventional hermetic electric compressor. is there. (1) is a closed container, (1a) is an upper closed container, (1b) is a lower closed container, (2) is an electric element, (3) is a stator,
(3a) is the coil end, (5) is the terminal terminal,
(6) is a lead wire, (10) is a liner, and (11) is a protective sheet. In the drawings, the same reference numerals indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nao Takimoto 3-18-1 Ogashi, Shizuoka-shi, Shizuoka Mitsubishi Electric Corporation Shizuoka Factory (72) Shoji Hagiwara 3-18-1 Oka, Shizuoka-shi, Shizuoka No. Mitsubishi Electric Corporation Shizuoka Factory

Claims (1)

[Scope of utility model registration request] 1. An electric element is housed in an airtight container composed of an upper airtight container and a lower airtight container, and a plurality of lead wires pulled out from a coil end of a stator of the electric element are connected to the upper airtight container. In a hermetic electric compressor connected to a terminal terminal arranged in the upper part, a liner is welded and fixed to an upper hermetic container, and a protective sheet made of insulating paper is attached to the liner. Machine.