Electric compressor and method for manufacturing same

Patent metadata

Field	Value
Publication number	US-10030657-B2
Application number	US-201514600263-A
Country	US
Kind code	B2
Filing date	Jan 20, 2015
Priority date	Jan 20, 2014
Publication date	Jul 24, 2018
Grant date	Jul 24, 2018

Abstract

There is provided an electric compressor to be fixed an object including a compression mechanism, an electric motor, a housing, a supporting member, and a plurality of vibration damping members. One of the housing and the supporting member has a recess and the other of the housing and the supporting member has a projection that is disposed in the recess and engaged with the recess to form a plurality of accommodating spaces on opposite sides of the projection, respectively. A filling rate of each vibration damping member in the corresponding accommodating space is changeable. There is also provided a method for manufacturing the electric compressor, including preparing a plurality of vibration damping members, choosing one of the vibration damping members, and providing the supporting member to the outer peripheral surface of the housing while accommodating the chosen vibration damping members in the respective accommodating spaces.

First claim

What is claimed is:

1. An electric compressor to be fixed to an object comprising:
a compressor for compressing refrigerant;
an electric motor for driving the compressor;
a housing forming a cylindrical shape and accommodating therein the compressor and the electric motor; and
a supporting member fixed to the object and provided to an outer peripheral surface of the housing,
wherein the housing and the supporting member are not directly connected, wherein one of the housing and the supporting member has a projection, wherein the other of the housing and the supporting member has a recess,
wherein a plurality of vibration damping members are provided on opposite sides of the projection, so as to have the projection disposed between the plurality of vibration damping members, wherein the vibration damping members have elasticity,
wherein the supporting member is configured to support the housing through each of the vibration damping members by contact of the vibration damping members with both the housing and the supporting member in a radial direction of the housing,
wherein, according to first amplitudes of vibration of the electric compressor, which are applied to the respective vibration damping members, a clearance is formed between the projection or the recess and the vibration damping members in an axial direction of the electric motor, and
wherein according to second amplitudes of vibration of the electric compressor, which are applied to the respective vibration damping members, the vibration damping members are in contact with the projection and the recess in the axial direction by decreasing of a distance between the supporting member and the housing and no clearance is present between the projection or the recess and each of the vibration damping members in the axial direction,
wherein the first amplitudes of vibration are smaller than the second amplitudes of vibration.

2. The electric compressor according to claim 1 , wherein each of the vibration damping members is provided to surround an entire circumference of the outer peripheral surface of the housing.

3. The electric compressor according to claim 1 , wherein a different clearance is provided between the projection or the recess and each of the vibration damping members in the axial direction.

4. The electric compressor according to claim 2 , wherein a different clearance is provided between the projection or the recess and each of the vibration damping members in the axial direction.

Assignees

• Toyota Jidoshokki Kk

Inventors

• Tozawa Kosaku
• Ota Takayuki

Classifications

• F04C18/0215

  where only one member is moving · CPC title

• F04C18/0207

  both members having co-operating elements in spiral form · CPC title

• F04C29/021 Primary

  Control systems for the circulation of the lubricant · CPC title

• F04C15/008 Primary

  Prime movers · CPC title

• F04C2230/601

  Adjustment · CPC title