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US 10,518,533 B2Granted
Head module and liquid ejection apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorSusumu Sakuma
Life of this patent
Estimating the term…
Abstract
A head module includes a head, a driver IC, a heat spreader, a holder and a heat insulator. The head ejects liquid in response to the driver IC. The heat spreader is in thermal communication with the driver IC. The holder supports the head. The heat insulator is located to thermally isolate the heat spreader and the holder.
Claims36
A head module, comprising:
- a head including:
- a flow channel substrate having an orifice and a flow channel in fluid communication with the orifice;
- and
- an actuator adjacent the flow channel;
- a driver IC that is electrically connected to the actuator;
- a heat spreader in thermal contact with the driver IC to facilitate heat exchange between the heat spreader and the driver IC, wherein the driver IC is located between the head and the heat spreader;
- a holder that supports the head;
- and
- a heat insulator located between the heat spreader and the holder, the heat insulator having a thermal conductivity lower than the heat spreader.
6 more elements
A head module, comprising:
- a driver IC;
- a head configured to eject liquid in response to the driver IC;
- a holder supporting the head;
- a heat spreader in thermal communication with the driver IC, the heat spreader including a peripheral side surface;
- a support plate opposite the head such that the holder is between the support plate and the head;
- and
- a heat insulator receiving the heat spreader so as to surround the peripheral side surface of the heat spreader to thermally isolate the holder and the support plate from the heat spreader.
4 more elements
A method of assembling a head module, comprising;
- providing a head including:
- a flow channel substrate having an orifice and a flow channel communicating with the orifice;
- and
- an actuator adjacent the flow channel;
- thermally attaching a heat spreader to a driver IC that is electrically connected to the actuator;
- attaching the head to a holder;
- and
- thermally insulating the heat spreader from the holder, including situating the heat spreader in a heat insulator such that the heat insulator surrounds peripheral side surfaces of the heat spreader.
5 more elements
Dependencies are inferred from the claim text.