Shield structure of electronic device unit and control panel housing

Patent metadata

Field	Value
Publication number	US-9668387-B2
Application number	US-201514722371-A
Country	US
Kind code	B2
Filing date	May 27, 2015
Priority date	May 29, 2014
Publication date	May 30, 2017
Grant date	May 30, 2017

Abstract

In an electrical shield structure of an electronic device unit and a control panel housing, a metal frame includes a plurality of protrusions having conductivity and having heights to come into contact with the control panel housing. The plurality of protrusions are provided at positions which surround an electronic component. A packing includes a plurality of holes through which the protrusions are inserted at positions corresponding to the positions of the protrusions.

First claim

The invention claimed is:

1. An electrical shield structure of an electronic device unit and a control panel housing, including, in the electronic device unit, an electronic component mounted in a metal frame having a plurality of mounting portions to be mounted on the control panel housing, and the electrical shield structure is configured by mounting the electronic device unit on the control panel housing via a packing, the metal frame includes:
a plurality of protrusions having conductivity and having heights to come into contact with the control panel housing, and the plurality of protrusions are provided at positions which surround the electronic component, and
the packing includes a plurality of holes through which the protrusions are inserted at positions corresponding to the positions of the protrusions.

2. The electrical shield structure according to claim 1 ,
wherein the heights of the plurality of protrusions in the thickness direction of the metal frame are reduced from a center portion of the metal frame between the plurality of mounting portions toward the plurality of mounting portions.

3. The electrical shield structure according to claim 1 ,
wherein a bend is provided in the metal frame in a direction in which a center portion of the metal frame between the plurality of mounting portions is swollen toward a rear surface side of the electronic device unit.

4. The electrical shield structure according to claim 1 ,
wherein hardnesses of the metal frame and the control panel housing are different from each other.

5. The electrical shield structure according to claim 1 , wherein, among the plurality of protrusions, the height of a protrusion at a center portion of the metal frame between the plurality of mounting portions is higher than the height of another protrusion located farther away from the center portion.

6. The electrical shield structure according to claim 1 , wherein the plurality of protrusions is arranged with intervals configured to obtain an effect of shielding a wavelength of electromagnetic waves to be blocked.

7. The electrical shield structure according to claim 1 , wherein a hardness of the metal frame is greater than a hardness of the control panel housing.

8. The electrical shield structure according to claim 1 , wherein a hardness of the metal frame is smaller than a hardness of the control panel housing.

9. An electrical shield structure of an electronic device unit and a control panel housing, including, in the electronic device unit, an electronic component mounted in a metal frame having a plurality of mounting portions to be mounted on the control panel housing, and the electrical shield structure is configured by mounting the electronic device unit on the control panel housing via a packing, the control panel housing includes:
a plurality of protrusions having conductivity and having heights to come into contact with the metal frame, and the plurality of protrusions are provided at positions which surround the electronic component, and
the packing includes a plurality of holes through which the protrusions are inserted at positions corresponding to the positions of the protrusions.

10. The electrical shield structure according to claim 9 ,
wherein the heights of the plurality of protrusions in the thickness direction of the metal frame are reduced from a portion in the control panel housing corresponding to a center portion between the plurality of mounting portions of the metal frame toward portions that oppose the plurality of mounting portions.

11. The electrical shield structure according to claim 9 ,
wherein a bend is provided in the control panel housing in a direction in which a center portion of the control panel housing between the plurality of mounting portions is swollen toward a mounting surface side of the electronic device unit.

12. The electrical shield structure according to claim 9 , wherein, among the plurality of protrusions, the height of a protrusion at a center portion of the metal frame between the plurality of mounting portions is higher than the height of another protrusion located farther away from the center portion.

13. The electrical shield structure according to claim 9 , wherein the plurality of protrusions is arranged with intervals configured to obtain an effect of shielding a wavelength of electromagnetic waves to be blocked.

14. The electrical shield structure according to claim 9 , wherein a hardness of the metal frame is greater than a hardness of the control panel housing.

15. The electrical shield structure according to claim 9 , wherein a hardness of the metal frame is smaller than a hardness of the control panel housing.

Assignees

• Fanuc Corp

Inventors

• Watanabe Hitoshi
• Sasaki Kazuyuki
• Okamura Hideki

Classifications

• H05K9/0049

  being metallic containers · CPC title

• H05K9/0015 Primary

  Gaskets or seals · CPC title

• H05K9/0054

  specially adapted for display applications · CPC title

• H05K9/0009

  with provisions to reduce EMI leakage through the joining parts · CPC title