TWI587062B - Fixing structure - Google Patents

Description

Fixed structure

This invention relates to a fixed structure, and more particularly to a fixed structure for securing an optical component.

A projector is an optical device that uses an optical lens to magnify an image. The projector is internally provided with a plurality of optical lenses of different sizes and functions, each of which is clamped from above and below the lens by two semi-circular clamping members. The conventional clamping member forms a groove at the clamping end and abuts the concave groove against the edge of the optical lens for positioning, but the two penetration faces of the optical lens are curved surfaces, if the shape of the concave surface and the curved surface of the optical lens If the shape is not adapted, the optical lens cannot be completely inserted into the recessed groove, and it is easy to have the disadvantage of inaccurate positioning. In addition, conventional clamps are often made of a thermally conductive metal, such as an aluminum alloy, to reduce the temperature of the optical lens, but clamps made of thermally conductive metal can be costly.

Therefore, how to improve the above problems is the focus of the relevant personnel in the field.

The object of the present invention is to provide a fixing structure for fixing an optical component, thereby solving the inaccuracy of positioning of the metaphysical component in the prior art and The problem of traditional clamping parts is expensive.

In order to achieve the above advantages, the present invention provides a fixing structure for fixing an optical component. The optical element has opposing first and second surfaces and a side connected between the first surface and the second surface. The fixed structure includes a carrier and a fixing member. The carrier is used to carry optical components. The carrier includes opposing first arcuate walls and second arcuate walls. The optical element is located between the first curved wall body and the second curved wall body, and the first curved wall body and the second curved wall body respectively expose a portion of the first surface and a portion of the second surface. The fixing member is disposed on the optical element and includes a first fixing portion. The first fixing portion is located on the first surface of the optical element and abuts against the first curved wall body to position the optical element in the first direction and the second surface to abut against the second curved wall body.

In an embodiment of the invention, the first fixing portion includes a plurality of positioning protrusions, the positioning protrusions are disposed along a circumference of the first surface of the optical element, and the positioning protrusions respectively abut the first arc Different positions of the wall.

In an embodiment of the invention, the carrier further includes a first limiting portion and a second limiting portion. The first limiting portion is disposed on the second curved wall body. The second limiting portion is disposed on the second curved wall body and independent of the first limiting portion, and the first limiting portion and the second limiting portion respectively contact a portion of the side of the optical element to position the optical element in the second direction In the third direction, the first direction, the second direction, and the third direction are perpendicular to each other.

In an embodiment of the invention, the fixing member further includes a second fixing portion that abuts a side of the optical element to position the optical element in the second direction.

In an embodiment of the invention, the fixing structure further includes a stopper disposed above the carrier, and the second fixing portion of the fixing member abuts Between the stopper and a portion of the side of the optical element to position the optical element in the second direction.

In an embodiment of the invention, the second fixing portion includes a first positioning convex portion extending toward the stopper and a second positioning convex portion extending toward a side surface of the optical element, the first positioning convex portion and the second positioning portion. The projections abut against the stop and the side of the optical element, respectively.

In an embodiment of the invention, the optical element further has a radial dimension, and the first curved wall body and the second curved wall body respectively have an inner diameter dimension and an outer diameter dimension, and the radial dimension is larger than the inner diameter dimension and Less than the outer diameter size.

In an embodiment of the invention, the carrier further includes a connecting wall connected between the first curved wall and the second curved wall.

In an embodiment of the invention, the first curved wall body and the second curved wall body are respectively semi-annular structures.

In an embodiment of the invention, the fixing member is an elastic fixing member.

The fixing structure of the embodiment of the invention comprises a bearing seat and a fixing component, wherein the bearing seat is used to carry the optical component and comprises a first curved wall body and a second curved wall body. The fixing member is disposed on the optical component, and the first fixing portion of the fixing member is located at the first surface of the optical component and abuts against the first curved wall of the carrier to position the optical component in the first direction to make the second component of the optical component The surface of the fixed structure of the embodiment of the invention can not only accurately position and fix the optical component, but also has the advantages of simple structure, easy operation and small volume. And low production costs and other advantages.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

1, 1a‧‧‧ fixed structure

11‧‧‧Hosting

12, 12a‧‧‧Fixed parts

13‧‧‧stops

100‧‧‧ accommodating space

111‧‧‧First curved wall

112‧‧‧Second curved wall

113‧‧‧Connecting wall

114‧‧‧First Limitation

115‧‧‧Second Limitation

121‧‧‧First Fixed Department

122, 122a‧‧‧Second fixed department

1111, 1112‧‧‧ inner surface

1210, 1220‧‧‧ positioning convex

1221‧‧‧First positioning convex

1222‧‧‧Second positioning convex

2‧‧‧Optical components

21‧‧‧ first surface

22‧‧‧ second surface

23‧‧‧ side

D1‧‧‧ first direction

D2‧‧‧ second direction

D3‧‧‧ third direction

E1‧‧‧ first abutment

E2‧‧‧ second abutment

R1‧‧‧ inner diameter size

R2‧‧‧ outer diameter size

R3‧‧‧ radial size

G‧‧‧ spacing

1 is a schematic view showing the combination of components of a fixed structure according to an embodiment of the present invention.

2 is a schematic exploded view of the components of the fixed structure shown in FIG. 1.

3 is a side elevational view of the optical component shown in FIG. 1.

4 is a side elevational view of the fixed structure shown in FIG. 1.

FIG. 5 is a front elevational view showing the fixing structure shown in FIG. 1.

6 is a side view of the fixing member shown in FIG. 1.

FIG. 7 is a side elevational view showing a fixing structure according to another embodiment of the present invention.

Please refer to FIG. 1 to FIG. 6. FIG. 1 is a schematic view showing the combination of components of a fixing structure according to an embodiment of the present invention. 2 is an exploded perspective view of the fixed structure shown in FIG. 1. Figure 3 is a side elevational view of the optical component of Figure 1. 4 is a side elevational view of the fixed structure of FIG. 1. Figure 5 is a front elevational view of the fixed structure of Figure 1. Figure 6 is a side elevational view of the fastener of Figure 1.

As shown in FIGS. 1 to 6, the fixing structure 1 of the present embodiment is for fixing the optical element 2. The optical element 2 has opposing first and second surfaces 21 and 22 and a side 23 connected between the first surface 21 and the second surface 22. The fixing structure 1 includes a carrier 11 and a fixing member 12. The carrier 11 is used to carry the optical element 2. The carrier 11 includes an opposite first curved wall 111 and a second curved wall 112, and the optical element 2 is located between the first curved wall 111 and the second curved wall 112, and the first curved wall The body 111 and the second curved wall 112 respectively expose a portion of the first surface 21 and the second surface 22 of the optical element 2. The fixing member 12 is disposed on the optical element 2 and includes a first fixing portion 121. The first fixing portion 121 is located on the first surface 21 of the optical element 2 and abuts against the first curved wall 111 of the carrier 11 to position the optical element 2 in the first direction D1 such that the second surface 22 of the optical element 2 Abutting against the second curved wall 112 of the carrier 11.

Further details of the other detailed structure of the fixed structure 1 of the present embodiment will be further described below.

As shown in FIG. 1 to FIG. 6 , the carrier 11 of the embodiment further includes a connecting wall 113 connected between the first curved wall 111 and the second curved wall 112 . The first curved wall 111, the second curved wall 112, and the connecting wall 113 define an accommodating space 100 for accommodating the optical element 2 and the fixing member 12. In other words, the connecting wall 113 enables the first arc A proper spacing G between the shaped wall body 111 and the second curved wall 112 (ie, the spacing between the inner surface 1111 of the first curved wall 111 and the inner surface 1112 of the second curved wall 112) ). In addition, in the present embodiment, the first curved wall body 111 and the second curved wall body 112 of the carrier 11 are respectively a semi-annular structure, and the first curved wall body 111 and the second curved shape are respectively The wall body 112 has an inner diameter dimension R1 and an outer diameter dimension R2, respectively, and the radial dimension R3 of the optical element 2 is, for example, larger than the inner diameter dimension R1 of the first curved wall body 111 and the second curved wall body 112 and smaller than the outer diameter. Size R2.

It should be noted that, in this embodiment, the arc length of the first curved wall 111 and the second curved wall 112 is, for example, greater than half of the circumference of the optical element 2, but the present invention does not In other embodiments, the arc length of the first curved wall 111 and the second curved wall 112 is, for example, equal to half the circumference of the optical element 2 .

As shown in FIG. 1 to FIG. 6 , the carrier 11 of the embodiment further includes a first limiting portion 114 and a second limiting portion 115 . The first limiting portion 114 is configured on The second curved wall 112. The second limiting portion 115 is disposed on the second curved wall 112 and is independent of the first limiting portion 115. Specifically, the first limiting portion 114 and the second limiting portion 115 are disposed, for example, in the second curved shape. On the inner surface 1112 of the wall 112, the first limiting portion 114 and the second limiting portion 115 are respectively located on opposite sides of the inner surface 1112 of the second curved wall 112, respectively. The first limiting portion 114 and the second limiting portion 115 respectively contact the partial side surface 23 of the optical element 2 for the optical element 2 to bear, and position the optical element 2 in the second direction D2 and the third direction D3, In the present embodiment, the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other. It should be noted that the arrangement positions of the first limiting portion 114 and the second limiting portion 115 of the present embodiment are only one embodiment of the present invention, and the present invention is not limited thereto, and the first limiting position The portion 114 and the second limiting portion 115 are disposed between the first and second curved walls 112, 114, and the position may be changed according to actual needs.

As shown in FIG. 1 to FIG. 6 , the fixing member 12 of the embodiment is an elastic fixing member, and the material of the fixing member can be any elastic material, which is not limited in the present invention. The first fixing portion 121 of the fixing member 12 includes a plurality of positioning convex portions 1210. The positioning protrusions 1210 are disposed along the circumference of the first surface 21 of the optical element 2, and the positioning protrusions 1210 respectively abut the different positions of the first curved wall 111, specifically, as shown in FIG. The positioning protrusions 1210 have a first abutting end E1 and a second abutting end E2 respectively, wherein the first abutting ends E1 respectively abut against the circumference of the first surface 21 of the optical element 2, and the second abutting The ends E2 abut against different positions of the first curved wall 111, respectively. In the present embodiment, the number of the positioning protrusions 1210 is, for example, three, and is located substantially at the left peripheral edge, the right peripheral edge, and the bottom side periphery of the first surface 21 of the optical element 2, that is, these positioning convexities. The portions 1210 substantially abut against the first curved wall 111 opposite the first surface 21 of the optical element 2 The position at the left peripheral edge, the right peripheral edge, and the bottom side periphery. It should be noted that the number of positioning protrusions 1210 and the position of the configuration are only one embodiment of the present invention, and the present invention is not limited thereto, and the number of positioning protrusions 1210 and the position of the configuration are not limited thereto. It can be changed according to the needs of the actual situation.

As shown in FIG. 1 to FIG. 6 , the fixing member 12 of the embodiment further includes a second fixing portion 122 . The second fixing portion 122 abuts against a portion of the side surface 23 of the optical element 2 to position the optical element in the second direction D2. Specifically, the second fixing portion 122 abuts the partial side surface 23 of the optical element 2 with the positioning convex portion 1220 , that is, the positioning convex portion 1220 of the second fixing portion 122 substantially abuts against the side surface 23 of the top of the optical element 2 . And the optical element 2 is coupled to the structural design of the first limiting portion 114 and the second limiting portion 115 such that the optical element 2 is stably positioned in the second direction D2.

As shown in FIG. 1 and FIG. 2, the fixing structure 1 of the present embodiment is first assembled by placing the optical element 2 on the first curved wall body 111, the second curved wall body 112 and the connecting wall of the bearing base 11. The accommodating space 100 defined by the body 113 and the side surface 23 of the optical element 2 are reliably supported by the first limiting portion 114 and the second limiting portion 115. The fixing member 12 is also placed in the accommodating space 100, so that the first fixing portion 121 and the second fixing portion 122 are respectively located on the first surface 21 and the side surface 23 of the optical element 2, and by the first fixing portion 121. The positioning protrusions 1210 abut against the first curved wall 111 and the positioning protrusions 1220 of the second fixing portion 122 are bottomed against the side surface 23 of the optical element 2, so that the optical element 2 is positioned in the first direction D1, the second Direction D2 and third positioning direction D3.

Please refer to FIG. 7, which is a side view of a fixing structure according to another embodiment of the present invention. As shown in FIG. 7, the fixing structure 1a and the diagram of this embodiment 1 to the fixing structure 1 shown in FIG. 6 is similar, except that the fixing structure 1a of the present embodiment further includes a stopper 13. The stopper 13 is disposed above the carrier 11 and the second fixing portion 122a of the fixing member 12a abuts between the stopper 13 and a portion of the side surface 23 of the optical element 2. In order to match the structural design of the stopper 13 , in the present embodiment, the second fixing portion 122 a includes a first positioning convex portion 1221 extending toward the stopper 13 and a second positioning convex portion extending toward the side surface 23 of the optical element 2 . 1222. The first positioning convex portion 1221 and the second positioning convex portion 1222 respectively abut against the stopper 13 and a part of the side surface 23 of the optical element 2, and cooperate with the optical element 2 to bear against the first limiting portion 114 and the second limiting portion. The structural design of 115 allows the optical element 2 to be stably positioned in the second direction D2.

In summary, the fixing structure of the embodiment of the present invention includes a bearing seat and a fixing member, and the bearing seat is configured to carry the optical component and includes a first curved wall body and a second curved wall body. The fixing member is disposed on the optical component, and the first fixing portion of the fixing member is located at the first surface of the optical component and abuts against the first curved wall of the carrier to position the optical component in the first direction to make the second component of the optical component The surface of the fixed structure of the embodiment of the invention can not only accurately position and fix the optical component, but also has the advantages of simple structure, easy operation and small volume. And low production costs and other advantages.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

1‧‧‧Fixed structure

11‧‧‧Hosting

12‧‧‧Fixed parts

100‧‧‧ accommodating space

111‧‧‧First curved wall

112‧‧‧Second curved wall

113‧‧‧Connecting wall

114‧‧‧First Limitation

115‧‧‧Second Limitation

121‧‧‧First Fixed Department

122‧‧‧Second fixed department

1210, 1220‧‧‧ positioning convex

1221‧‧‧First positioning convex

1222‧‧‧Second positioning convex

2‧‧‧Optical components

21‧‧‧ first surface

23‧‧‧ side

D1‧‧‧ first direction

D2‧‧‧ second direction

D3‧‧‧ third direction

Claims (9)

A fixing structure for fixing an optical component having an opposite first surface and a second surface and a side connected between the first surface and the second surface, the fixing structure comprising: a carrier for carrying the optical component, the carrier includes an opposite first arc-shaped wall and a second arc-shaped wall, the optical component is located at the first curved wall and the second curved wall Between the bodies, and the first curved wall body and the second curved wall body respectively expose a portion of the first surface and a portion of the second surface, wherein the first curved wall body and the second curved wall body a half-ring structure; and a fixing member disposed on the optical component and including a first fixing portion, the first fixing portion is located on the first surface of the optical component and abuts against the first curved wall And positioning the optical element in a first direction to abut the second surface against the second curved wall. The fixing structure of claim 1, wherein the first fixing portion comprises a plurality of positioning protrusions, the positioning protrusions are disposed along a circumference of the first surface of the optical element, and the positioning protrusions The portions respectively abut against different positions of the first curved wall body. The fixing structure of claim 1, wherein the carrier further comprises: a first limiting portion disposed on the second curved wall; and a second limiting portion disposed in the second The curved wall body is independent of the first limiting portion, and the first limiting portion and the second limiting portion are respectively in contact with the optical element A portion of the side of the piece is positioned to position the optical element in a second direction and a third direction, the first direction, the second direction and the third direction being perpendicular to each other. The fixing structure of claim 3, wherein the fixing member further comprises a second fixing portion, the second fixing portion abutting the side of the optical element to position the optical element in the second direction. The fixing structure of claim 4, further comprising a stopper disposed above the carrier, the second fixing portion of the fixing member abutting the stopper and the optical component Between the sides to position the optical element in the second direction. The fixing structure of claim 5, wherein the second fixing portion comprises a first positioning convex portion extending toward the stopping member and a second positioning convex portion extending toward the side surface of the optical element. The first positioning protrusion and the second positioning protrusion respectively abut the side of the stopper and the optical element. The fixed structure of claim 1, wherein the optical element further has a radial dimension, and the first curved wall body and the second curved wall body respectively have an inner diameter dimension and an outer diameter dimension The radial dimension is greater than the inner diameter dimension and less than the outer diameter dimension. The fixing structure of claim 1, wherein the carrier further comprises a connecting wall connected between the first curved wall and the second curved wall. The fixing structure according to claim 1, wherein the fixing member is an elastic fixing member.