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Induction heating system for a motor-driven vehicle

An induction heating device and induction heating technology are applied in the direction of heating/cooling equipment, power supply of electric heating circuit, output power conversion device, etc., which can solve the problems of increasing the number of parts and increasing the cost, and achieve the effect of high efficiency

Inactive Publication Date: 2009-09-23
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is conceivable to use induction heating for heating, but in this case, an inverter for converting DC current to AC current is required separately, which raises the problem of increased cost and number of parts

Method used

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  • Induction heating system for a motor-driven vehicle
  • Induction heating system for a motor-driven vehicle
  • Induction heating system for a motor-driven vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] figure 1 Among them, an automobile VC as a vehicle has a multi-phase (three-phase type in the embodiment) AC motor 1 . This AC motor 1 drives left and right front wheels 3FR, 3FL through a differential device 2 . The left and right rear wheels 3RR, 3RL are driven wheels.

[0071] 10 denotes a high-voltage battery as an electrical storage device. The DC current of the high-voltage battery 10 is converted into an AC current by a DC-AC converter 11 including an inverter as an inverter, and the AC current is supplied to the AC motor 1 . Also, 12 is an engine, and 13 is an alternator driven by the engine 12 . The electric power generated by the generator 13 is supplied to the high-voltage battery 10 through the AC-DC converter 14 constituted by an inverter, and is also supplied to the AC motor 1 through the above-mentioned DC-AC converter 11 . In addition, in association with the AC motor 1, a heater core HC as a heated member equipped with a coil for induction heating is...

Embodiment 2

[0093] Figure 14 ~ Figure 16 A vehicle induction heating device according to a second embodiment of the present invention is shown. In this embodiment, the coil C for induction heating and the neutral point α are connected through the relay switch RS1 so that the power supply to the coil C for induction heating can be cut off arbitrarily. In addition, the neutral point α bypasses the relay switch RS1 and the coil C for induction heating, and is grounded through the relay switch RS11. When the relay switch RS1 is turned off, the energization to the coil C for induction heating is cut off, and the induction heating is not performed. Therefore, when it is not necessary to heat the heater core HC by induction heating, the energization to the coil C can be cut off, so that unnecessary power consumption in the coil C can be suppressed. In addition, the relay switch RS11 is turned on when the ignition is on, and is turned off when the ignition is off, but the relay switch RS11 may...

Embodiment 3

[0099] Figure 17 ~ Figure 26 A vehicle induction heating device according to a third embodiment of the present invention is shown. As shown in these figures, in the induction heating device for a vehicle of this embodiment, three coils C1, C2, and C3 corresponding to the respective phases of the three-phase AC motor 1 are provided as the coil C for induction heating. but in Figure 17 , these three coils C1 to C3 are collectively represented as a coil C. In addition, the arrangement mode of the three induction heating coils C1 to C3 on the cover 40 can be appropriately selected, for example, they are arranged in series in the longitudinal direction of the cover 40 . In addition, it is not limited to the situation of being wound around the outer periphery of the cover 40, and induction heating can also be performed by being installed on the bottom of the cover 40 (the cover 40 is located within the action range of the magnetic force lines generated by the induction heating c...

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PUM

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Abstract

Disclosed is an induction heating system for a motor-driven vehicle (VC), which comprises a polyphase-type AC motor (1) adapted to drive the vehicle (VC), an electrical storage device (10) which stores an electric power to be supplied to the AC motor (1), a DC-AC converter (11) adapted to convert a direct current from the electrical storage device (10) into an alternating current and supply the alternating current to the AC motor (1), and an induction heating coil (C or C1 to C3) adapted to receive a supply of the alternating current from the DC-AC converter (11), to inductively heat a target component mounted to the vehicle (VC). The induction heating system of the present invention can efficiently inductively heat the target component without providing an additional converter exclusively for induction heating.

Description

technical field [0001] The present invention relates to a vehicle induction heating device for inductively heating a heated component equipped in a vehicle. Background technique [0002] In vehicles such as automobiles, it is often necessary to heat (warm) parts to be heated. For example, it is necessary to heat an air conditioner heater core (heater core) as a heated component to heat the interior of a vehicle, and in a vehicle with an engine, it is necessary to heat an exhaust gas purification catalyst as a heated component to quickly activation. Japanese Patent Laid-Open Publication No. 2006-151199 discloses a technique in which a DC resistance (heating element) for heating air-conditioning air is provided immediately downstream of an air-conditioning heater core for heating a vehicle interior. [0003] On the other hand, in a vehicle that drives the vehicle with an electric motor, an AC electric motor is also used as the driving electric motor for the vehicle in consid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/03B60H1/22B60L1/04B60L50/15H02M7/5387H02P29/00
CPCY02T10/6217Y02T10/7241Y02T10/7077Y02T10/642Y02T10/64Y02T10/7072
Inventor 佐藤隆之
Owner MAZDA MOTOR CORP