Vibrating body mounting structure and projection-type image display device including same

Patent metadata

Field	Value
Publication number	US-9612509-B2
Application number	US-201214428954-A
Country	US
Kind code	B2
Filing date	Sep 20, 2012
Priority date	Sep 20, 2012
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

Provided is a vibrating body mounting structure capable of reducing vibrations generated from a plurality of vibrating bodies. Vibrating body mounting structure ( 48 ) includes base member ( 40 ), a plurality of retaining members ( 39, 45 ), and connecting damper ( 49 ). The retaining members include first portions ( 39 a, 45 a ) secured to the base member, and second portions ( 39 b, 45 b ) adjacent to the first portions and retaining vibrating bodies ( 24, 25 ). The connecting damper connects second portion ( 39 b ) of one retaining member ( 39 ) of the plurality of retaining members to second portion ( 45 b ) of the other retaining member ( 45 ) of the plurality of retaining members.

First claim

The invention claimed is:

1. A vibrating body mounting structure for mounting a plurality of vibrating bodies, the vibrating body mounting structure comprising:
a base member;
a plurality of retaining members including first portions secured to the base member, and second portions adjacent to the first portions and retaining the vibrating bodies, the vibrating bodies being spaced apart from each other; and
a connecting damper connecting the second portion of one retaining member of the plurality of retaining members to the second portion of an other retaining member of the plurality of retaining members.

2. The vibrating body mounting structure according to claim 1 , wherein natural frequencies of the plurality of retaining members are different from each other.

3. The vibrating body mounting structure according to claim 1 , wherein the connecting damper includes a plate spring and a visco-elasticity member fixed to the plate spring.

4. The vibrating body mounting structure according to claim 1 , wherein the connecting damper includes a member including a plurality of plate springs that are bundled into a single unit.

5. A projection-type image display device comprising the vibrating body mounting structure according to claim 1 ,
wherein at least one vibrating body of the plurality of vibrating bodies comprises a fluorescent wheel unit including a phosphor, a circular substrate on which the phosphor is applied, and a motor for rotating the circular substrate.

6. A projection-type image display device comprising the vibrating body mounting structure according to claim 1 ,
wherein at least one vibrating body of the plurality of vibrating bodies comprises a color wheel unit including a color filter, a circular substrate on which the color filter is disposed, and a motor for rotating the circular substrate.

7. A projection-type image display device comprising the vibrating body mounting structure according to claim 1 ,
wherein the plurality of vibrating bodies includes a fluorescent wheel unit and a color wheel unit,
wherein the fluorescent wheel unit includes a phosphor, a first circular substrate on which the phosphor is applied, and a first motor for rotating the first circular substrate, and
wherein the color wheel unit includes a color filter, a second circular substrate on which the color filter is disposed, and a second motor for rotating the second circular substrate.

8. A projection-type image display device comprising the vibrating body mounting structure according to claim 1 ,
wherein the plurality of vibrating bodies comprises a fan for blowing air.

9. The projection-type image display device according to claim 8 , wherein the fan comprises an axial fan.

10. The projection-type image display device according to claim 8 , wherein the fan comprises a sirocco fan.

11. The vibrating body mounting structure according to claim 1 , wherein the connecting damper spaces apart the vibrating bodies from each other.

12. The vibrating body mounting structure according to claim 1 , wherein the vibrating bodies are located on opposing ends of the connecting damper.

13. The vibrating body mounting structure according to claim 1 , wherein the connecting damper extends above the vibrating bodies.

14. The vibrating body mounting structure according to claim 1 , wherein the first portion of the one retaining member includes a flat plate that longitudinally extends parallel to the base member.

15. The vibrating body mounting structure according to claim 14 , wherein the second portion of the one retaining member includes another flat plate that longitudinally extends orthogonal to the base member.

16. The vibrating body mounting structure according to claim 15 , wherein one of the vibrating bodies protrudes from said another flat plate of the one retaining member in a direction opposite to a direction that the flat plate of the one retaining member protrudes from said another flat plate of the one retaining member.

17. The vibrating body mounting structure according to claim 16 , wherein another one of the vibrating bodies protrudes from the second portion of the other retaining member in the direction that the flat plate of the one retaining member protrudes from said another flat plate of the one retaining member.

18. The vibrating body mounting structure according to claim 17 , wherein the connecting damper includes a spring element and a damping element.

19. The vibrating body mounting structure according to claim 18 , wherein the spring element includes a flat plate longitudinally extending above an upper surface of the one of the vibrating bodies in the direction that the one of the vibrating bodies protrudes from said another flat plate of the one retaining member.

20. The vibrating body mounting structure according to claim 19 , wherein the spring element further includes a bent part longitudinally extending from an end of the flat plate of the spring element in a direction orthogonal to the direction that the one of the vibrating bodies protrudes from said another flat plate of the one retaining member, and
wherein the damping element is located in the bent part of the spring element.

Assignees

• Nec Display Solutions Ltd

Inventors

• Utsunomiya Motoyasu

Classifications

• F16F15/085

  Use of both rubber and metal springs · CPC title

• F16F15/073

  using only leaf springs · CPC title

• G03B33/08

  Sequential recording or projection (G03B33/02, G03B33/04, G03B33/06 take precedence) · CPC title

• F16F15/00

  Suppression of vibrations in systems ({damping of non-rotary systems using inertia effect F16F7/10; prevention or isolation of vibrations in machine tools B23Q11/0032; suppression of driveline vibrations in hybrid vehicle transmissions B60W30/20} ; vehicle seat suspension devices B60N2/50; {methods or devices for protecting against, or damping of, acoustic waves, e.g. sound G10K11/16}); Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion ({vibration absorbing or balancing means for aircraft propellers B64C11/008, for rotorcraft rotors B64C27/001} ; testing static and dynamic balance of machines or structures G01M1/00) · CPC title

• G03B21/204

  using secondary light emission, e.g. luminescence or fluorescence (using different colours G03B33/00; if related to video signals H04N9/3197) · CPC title