Magnetic fix structure applying on a projection device

• US 8,610,523 B2
• Filed: 01/12/2012
• Issued: 12/17/2013
• Est. Priority Date: 01/21/2011
• Status: Active Grant

• Current Assignee: Delta Electronics Incorporated
• Original Assignee: Delta Electronics Incorporated
• Inventors: Ku, Tsang-Hsing, Liu, Kuang-Hsiao
• Primary Examiner(s): Talpalatski, Alexander
• Application Number:
  US13/349,077
• Publication Number:
  US 20120188034A1
• Time in Patent Office: 705 Days
• Field of Search: 335/285, 335/306, 335/219
• US Class Current: 335/219
• CPC Class Codes: G03B 21/145 Housing details, e.g. position adjustments thereof
• CPC Class Codes: H01F 7/0252 PM holding devices H01F7/021, H01F7/0215, H01F7/0226 take precedence

Abstract

The invention is a magnetic fix structure that applies on a projection device. The magnetic fix structure includes a first magnetic connector set and a second magnetic connector set, and the projection device includes a projection module housing and a power module housing. The first magnetic connector set and the second magnetic connector set are disposed on the projection module housing and the power module housing respectively. Therefore, through the attraction between the first magnetic connector set and the second magnetic connector set, the power module housing can be fixed onto the projection module housing.

Claims

1. A magnetic fix structure applying on a projection device, the projection device comprising a projection module housing having an inner bottom surface and a power module housing, the magnetic fix structure comprising:

a first magnetic connector set comprising at least three magnetic units disposed on a bottom portion of the projection module housing; and

a second magnetic connector set comprising at least three magnetic units disposed on a top portion of the power module housing corresponding to the at least three magnetic units of the first magnetic connector set respectively;

wherein the first magnetic connector set magnetically attracts the second magnetic connector set so as to allow the projection module housing to be fixed on the power module housing and the projection module housing defines two virtual axes, the virtual axes are perpendicular to each other and are defined a virtual surface parallel to the inner bottom surface, one of the virtual axes is perpendicular to an edge of the inner bottom surface, wherein a line that passes through any two of the three magnetic units of the first magnetic connector set is drawn, the line would not be parallel with either of the two virtual axes.

2. The magnetic fix structure as claimed in claim 1, wherein an end of each of the magnetic units of the first magnetic connector set magnetically attracts an end of one of the magnetic units of the second magnetic connector set correspondingly, and a magnetic pole of the end of the magnetic unit of the first magnetic connector set and a magnetic pole of the end of the magnetic unit of the second magnetic connector set are opposite.

3. The magnetic fix structure as claimed in claim 2, wherein the at least three magnetic units of the first magnetic connector set are a first magnetic unit, a second magnetic unit and a third magnetic unit respectively and are disposed on the inner bottom surface.

4. The magnetic fix structure as claimed in claim 3, wherein the first magnetic connector set further comprises a fourth magnetic unit, which is disposed on the inner bottom surface.

5. The magnetic fix structure as claimed in claim 4, wherein the top portion of the power module housing comprises an inner top surface, and the at least three magnetic units of the second magnetic connector set are a fifth magnetic unit, a sixth magnetic unit and a seventh magnetic unit respectively and are disposed on the inner top surface corresponding to the first magnetic unit, the second magnetic unit and the third magnetic unit so as to magnetically attract the first magnetic unit, the second magnetic unit and the third magnetic unit respectively.

6. The magnetic fix structure as claimed in claim 5, wherein the second magnetic connector set further comprises an eighth magnetic unit, which is disposed on the inner top surface corresponding to the fourth magnetic unit so as to magnetically attract the fourth magnetic unit.

7. The magnetic fix structure as claimed in claim 6, wherein the bottom portion of the projection module housing comprises an outer bottom surface, the top portion of the power module housing comprises an outer top surface, and the outer bottom surface of the projection module housing is fixed on the outer top surface of the power module housing when the first magnetic connector set and the second magnetic connector set magnetically attract each other.

8. The magnetic fix structure as claimed in claim 7, wherein the projection module housing comprises a first receiving space to receive a projection module of the projection device.

9. The magnetic fix structure as claimed in claim 8, wherein the power module housing comprises a second receiving space to receive a power module.

10. The magnetic fix structure as claimed in claim 5, wherein the first magnetic unit, the second magnetic unit and the third magnetic unit are respectively disposed adjacent to a first side surface, a second side surface and a third side surface of the projection module housing respectively.

11. The magnetic fix structure as claimed in claim 6, wherein the fourth magnetic unit is disposed adjacent to a fourth side surface of the projection module housing.

12. The magnetic fix structure as claimed in claim 10, wherein the first magnetic unit and the third magnetic unit are disposed substantially obliquely corresponding to each other on the inner bottom surface.

13. The magnetic fix structure as claimed in claim 11, wherein the second magnetic unit and the fourth magnetic unit are disposed substantially obliquely corresponding to each other on the inner bottom surface.

14. The magnetic fix structure as claimed in claim 9, wherein the projection module comprises a first electrical connection structure disposed on the outer bottom surface of the projection module housing, and the power module comprises a second electrical connection structure disposed on the outer top surface of the power module housing corresponding to the first electrical connection structure so as to electrically connect to the first electrical connection structure.

15. The magnetic fix structure as claimed in claim 14, wherein the first electrical connection structure comprises at least one protrusion.

16. The magnetic fix structure as claimed in claim 15, wherein the second electrical connection structure comprises at least one recession, which has a shape corresponding to the at least one protrusion to receive the at least one protrusion.