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Electric compressor
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A technology of electric compressors and electric motors, which is applied in the direction of machines/engines, liquid fuel engines, mechanical equipment, etc., and can solve the problems of large-scale electric compressors and increased weight
Inactive Publication Date: 2009-09-30
CALSONIC KANSEI CORP
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[0004] However, in such a conventional electric compressor, since the lubricating oil reservoir is provided on the axially extending portion of the casing, the casing must be enlarged in the axial direction, resulting in an increase in the size of the electric compressor.
[0005] In addition, since the above-mentioned lubricating oil storage part is formed only on the extended part of the casing, in order to strengthen the lubricating oil storage part, it is necessary to adopt a reinforcement structure such as thickening the wall thickness of the casing or providing reinforcing ribs, which may cause weight gain
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no. 1 Embodiment approach
[0017] figure 1 It is an overall perspective view of the electric compressor according to the first embodiment of the present invention, figure 2 It is a longitudinal sectional view of the electric compressor.
[0018] Such as figure 1 , figure 2 As shown, in the electric compressor 10 of this embodiment, along the axis direction ( figure 2 The rear case 12 , the middle case 13 , and the front case 14 , which are divided into three in the middle, left, and right directions), are combined to form the cabinet 11 . And, if figure 2 As shown, the compression mechanism unit 20 is accommodated in the middle housing 13 , the motor 30 is accommodated in the rear housing 12 , and the motor drive circuit unit 40 for controlling energization of the motor 30 is accommodated in the front housing 14 .
[0019] And, if figure 1 As shown, the refrigerant introduced into the casing 11 from the inlet 15 formed on the middle casing 13 is compressed by the compression mechanism part 20 ...
no. 2 Embodiment approach
[0037] image 3It is a vertical cross-sectional view of an electric compressor according to a second embodiment of the present invention. Figure 4 yes image 3 IV-IV sectional view, additionally, Figure 5 It is a rear view of the electric compressor of this embodiment. In addition, electric compressor 10A of the present embodiment includes the same constituent elements as electric compressor 10 of the first embodiment described above. Therefore, in the following, common reference numerals are assigned to these same constituent elements, and overlapping descriptions are omitted.
[0038] The motor-driven compressor 10A of this embodiment is the same as the above-mentioned first embodiment (see figure 2 ) The electric compressor 10 is different in that two mounting brackets 17, 17 are provided on the outer lower part of the casing 11 along the axis direction and are separated from each other.
[0039] In more detail, one mounting bracket 17 protrudes from the outer side ...
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Abstract
A lubrication oil containing chamber provided at the bottom of a housing is placed at a position that is below a compression mechanism section or an electric motor and is near an installation bracket provided at a lower part on the outer side of a middle case. The lubrication oil containing chamber is placed by effectively utilizing an otherwise dead space formed below the compression mechanism section in the housing, and the rigidity of the installation bracket can secure the strength of the lubrication oil containing chamber.
Description
technical field [0001] The present invention relates to an electric compressor in which a compression mechanism part and an electric motor are integrated. Background technique [0002] As a conventional electric compressor, there is known a compression mechanism unit and an electric motor that drives the compression mechanism unit in its casing, and a lubricating oil storage portion for lubricating the lubricating parts of the compression mechanism unit is provided at the bottom of the casing. . [0003] Patent Document 1 discloses a horizontally mounted electric compressor. In this structure, for example, the part of the housing housing the electric motor is extended outward in the axial direction, and a lubricating oil storage part is provided in the extended part, and the lubricating oil in the storage part is supplied to the parts requiring lubrication of the compression mechanism part, And return lubricating oil to this lubricating oil storage part. [0004] However,...
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Application Information
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