Thermal head
An embodiment of the present invention is a thermal head including: a heat dissipation plate having a first surface of a substantially rectangular shape in a plane view, and a second surface that is on an opposite side to the first surface; a board attached to the heat dissipation plat in such a manner as to extend from the first surface to the second surface, via a first end part interposed between the first surface and the second surface; a heating part having a plurality of heating elements, the heating part being disposed on the board over the first surface; and surface-mount devices mounted on the board over the second surface.
1. A thermal head comprising:
a heat dissipation plate having a first surface of a substantially rectangular shape in a plane view, and a second surface that is on an opposite side to the first surface;
a board attached to the heat dissipation plat in such a manner as to extend from the first surface to the second surface, via a first end part interposed between the first surface and the second surface;
a heating part having a plurality of heating elements, the heating part being disposed on the board over the first surface; and
surface-mount devices mounted on the board over the second surface.
2. The thermal head according to claim 1 , wherein
the board comprises an opening part that exposes a portion of the first surface of the heat dissipation plate.
3. The thermal head according to claim 2 , wherein the portion of the first surface exposed by the opening part and a surface of the heating part are in substantially the same reference plane.
4. The thermal head according to claim 3 , further comprising a pair of shafts extending outward from both ends of the heat dissipation plate in a plan view.
5. The thermal head according to claim 3 , further comprising a plate member attached to the heat dissipation plate, the plate member having a pair of projecting pieces that projects in a direction perpendicular to the first surface.
6. The thermal head according to claim 5 , wherein the plate member comprises a projecting part extending over longitudinal direction of a second end part that is opposite to the first end part of the heat dissipation plate, the projecting part projecting in a direction perpendicular to the second surface.
7. The thermal head according to claim 2 , further comprising a pair of shafts extending outward from both ends of the heat dissipation plate in a plan view.
8. The thermal head according to claim 7 , further comprising a plate member attached to the heat dissipation plate, the plate member having a pair of projecting pieces that projects in a direction perpendicular to the first surface.
9. The thermal head according to claim 8 , wherein the plate member comprises a projecting part extending over longitudinal direction of a second end part that is opposite to the first end part of the heat dissipation plate, the projecting part projecting in a direction perpendicular to the second surface.
10. The thermal head according to claim 2 , further comprising a plate member attached to the heat dissipation plate, the plate member having a pair of projecting pieces that projects in a direction perpendicular to the first surface.
11. The thermal head according to claim 10 , wherein the plate member comprises a projecting part extending over longitudinal direction of a second end part that is opposite to the first end part of the heat dissipation plate, the projecting part projecting in a direction perpendicular to the second surface.
12. The thermal head according to claim 1 , further comprising a pair of shafts extending outward from both ends of the heat dissipation plate in a plan view.
13. The thermal head according to claim 12 , further comprising a plate member attached to the heat dissipation plate, the plate member having a pair of projecting pieces that projects in a direction perpendicular to the first surface.
14. The thermal head according to claim 1 , wherein the surface-mount devices include a memory chip and a connector for receiving a signal from the outside.
15. The thermal head according to claim 1 , further comprising a plate member attached to the heat dissipation plate, the plate member having a pair of projecting pieces that projects in a direction perpendicular to the first surface.
16. The thermal head according to claim 15 , wherein the plate member comprises a projecting part extending over longitudinal direction of a second end part that is opposite to the first end part of the heat dissipation plate, the projecting part projecting in a direction perpendicular to the second surface.
17. The thermal head according to claim 13 , wherein the plate member comprises a projecting part extending over longitudinal direction of a second end part that is opposite to the first end part of the heat dissipation plate, the projecting part projecting in a direction perpendicular to the second surface.