Image reading apparatus and image forming apparatus
First Claim
1. An image reading apparatus comprising:
- a movable body configured to illuminate a document with light while traveling; and
an apparatus body configured to wirelessly transmit power to the movable body, whereinthe movable body includesa plurality of receiver coils, anda feed circuit in which the plurality of receiver coils uses receiving power to supply power to a load in the movable body,the apparatus body includes a plurality of transmitter coils placed along a track of the receiver coils following the travel of the movable body,the transmitter coils and the receiver coils are placed such that power supply efficiency of any receiver coil with the transmitter coil placed along the track of the receiver coil fluctuates as the movable body travels, and power supply efficiency related to one receiver coil increases at a position where power supply efficiency related to the other receiver coil drops during the travel of the movable body, andthe feed circuit supplies power sequentially using the receiving power of the receiver coil whose power supply efficiency is increased to highest among the plurality of receiver coils during the travel of the movable body.
1 Assignment
0 Petitions
Accused Products
Abstract
An image reading apparatus includes: a movable body configured to illuminate a document with light; and an apparatus body configured to wirelessly transmit power to the movable body, wherein the movable body includes receiver coils, and a feed circuit in which the receiver coils uses receiving power to supply power to a load, the apparatus body includes transmitter coils placed along a track of the receiver coils, the transmitter coils and the receiver coils are placed such that power supply efficiency of any receiver coil with the transmitter coil placed along the track of the receiver coil fluctuates, and power supply efficiency related to one receiver coil increases at a position where power supply efficiency related to the other receiver coil drops, and the feed circuit supplies power sequentially using the receiving power of the receiver coil whose power supply efficiency is increased to highest among the receiver coils.
-
Citations
12 Claims
-
1. An image reading apparatus comprising:
-
a movable body configured to illuminate a document with light while traveling; and an apparatus body configured to wirelessly transmit power to the movable body, wherein the movable body includes a plurality of receiver coils, and a feed circuit in which the plurality of receiver coils uses receiving power to supply power to a load in the movable body, the apparatus body includes a plurality of transmitter coils placed along a track of the receiver coils following the travel of the movable body, the transmitter coils and the receiver coils are placed such that power supply efficiency of any receiver coil with the transmitter coil placed along the track of the receiver coil fluctuates as the movable body travels, and power supply efficiency related to one receiver coil increases at a position where power supply efficiency related to the other receiver coil drops during the travel of the movable body, and the feed circuit supplies power sequentially using the receiving power of the receiver coil whose power supply efficiency is increased to highest among the plurality of receiver coils during the travel of the movable body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification