Motor device mounted on mobile body and mobile body having the motor device mounted thereon

• US 8,499,873 B2
• Filed: 05/23/2008
• Issued: 08/06/2013
• Est. Priority Date: 05/28/2007
• Status: Expired due to Fees

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Takamatsu, Naoyoshi, Kikuta, Daigo
• Primary Examiner(s): Shriver, II, J. Allen
• Assistant Examiner(s): Dolak, James M
• Application Number:
  US12/601,753
• Publication Number:
  US 20100181861A1
• Time in Patent Office: 1,901 Days
• Field of Search: 180/165, 180/302, 180/304, 180/305, 310/52, 310/58, 310/89
• US Class Current: 180/165
• CPC Class Codes: B60K 1/02 comprising more than one electric motor
• CPC Class Codes: B60K 17/043 Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
• CPC Class Codes: B60K 17/356 having fluid or electric motor, for driving one or more wheels disposition of motor in, or adjacent to, traction wheel B60K7/00
• CPC Class Codes: B60K 2007/0092 the motor axle being coaxial to the wheel axle
• CPC Class Codes: B60K 6/26 characterised by the motors or the generators
• CPC Class Codes: B60K 6/46 Series type
• CPC Class Codes: B60K 7/0007 the motor being electric
• CPC Class Codes: H02K 2205/09 Machines characterised by drain passages or by venting, breathing or pressure compensating means
• CPC Class Codes: H02K 5/04 Casings or enclosures characterised by the shape, form or construction thereof
• CPC Class Codes: H02K 5/10 with arrangements for protection from ingress, e.g. water or fingers
• CPC Class Codes: Y02T 10/62 Hybrid vehicles

Abstract

In a motor device 300 mounted on a mobile body, a pressurizing mechanism for increasing the pressure in a motor chamber 14 in which a motor is installed has a compressor 30, which is driven to rotate by an engine 20 serving as driving means for driving the mobile body, to produce compressed air for motor chamber pressurization, and the compressed air coming from the compressor 30 is fed into the motor chamber 14 through a pipe 72 almost constantly while the engine 20 is being driven.

Claims

1. A motor device mounted on a mobile body, the motor device comprising a pressurizing mechanism for increasing a pressure in a motor chamber in which a motor is installed;

a pressure detection unit for detecting an internal pressure in the motor chamber; and

a control unit including instructions to perform;

controlling the pressurizing mechanism in accordance with an output from the pressure detection unit to adjust the internal pressure in the motor chamber to a motor chamber internal pressure at about one atmosphere at which motor discharge does not occur so as to suppress deterioration of an insulation treatment film applied to the motor,

wherein

the pressurizing mechanism has a compressor which is driven to rotate by driving means for driving the mobile body to produce compressed air for motor chamber pressurization.

2. The motor device mounted on the mobile body according to claim 1, wherein:

when a measured pressure measured by the pressure detection unit is lower than a set motor chamber internal pressure, the control unit drives the pressurizing mechanism to supply compressed air into the motor chamber; and

when a measured pressure measured by the pressure detection unit becomes equal to or greater than the set motor chamber internal pressure, the control unit suspends driving of the pressurizing mechanism.

3. The motor device mounted on the mobile body according to claim 1, wherein:

the driving means is an engine; and

the compressor is a compressor which is driven to rotate by exhaust from the engine to produce compressed air for motor chamber pressurization.

4. The motor device mounted on the mobile body according to claim 1, wherein:

the driving means is an engine; and

the compressor is a compressor which is driven to rotate by an output shaft of the engine to produce compressed air for motor chamber pressurization.

5. A mobile body having mounted thereon the motor device according to claim 1.

6. A mobile body having mounted thereon the motor device according to claim 2.

7. A mobile body having mounted thereon the motor device according to claim 3.

8. A mobile body having mounted thereon the motor device according to claim 4.