TWI790151B - Light guide member - Google Patents

Abstract

Disclosed is a light guide member, comprising: a light guide body that has a first support part, a second support part and an L-shaped extension part connected to each other. On the lower surface of the first support part, a first surface mount technology (SMT) contact is provided. The lower surface of the second support part also has a second surface mount technology (SMT) contact. The first surface mount technology (SMT) contact and the second surface mount technology (SMT) contact are fixed on the printed circuit board by being respectively connected to a first solder paste and a second solder paste pre-configured on a printed circuit board.

Description

Light guide parts

The present invention relates to a light guide component, in particular to a light guide column fixed on a printed circuit board by Surface Mount Technology (SMT).

Generally speaking, when electronic components are placed on the printed circuit board, manual insertion is mostly used, which is the so-called through-hole insertion. However, such an operation usually consumes a lot of manpower and man-hours.

Therefore, how to provide a component such as a light guide column, which can be efficiently placed on the printed circuit board and reduce the demand for manpower and working hours, is a topic worth considering.

In view of the above, the first aspect of the present disclosure provides a light guide component, including: a light guide body, the light guide body has a first support portion connected to each other, a second support portion and a L Type extension part, and the lower surface of the first support part is provided with a first surface mount technology (SMT) contact, and the lower surface of the second support part is also provided with a second surface mount technology (SMT) contact; wherein, The first surface mount technology (SMT) contact and the second surface mount technology (SMT) contact are respectively connected to a first solder paste and a second solder paste pre-configured on a printed circuit board, and are fixed on the printed circuit board. circuit board.

In one embodiment, the first support part and the second support part are an inverted U-shaped structure, and the L-shaped extension part is from the midpoint of the connection part between the first support part and the second support part Extending upwards, and wherein viewed from a plan view, the L-shaped extending portion is perpendicular to the connecting portion between the first supporting portion and the second supporting portion.

In one embodiment, wherein the first surface mount technology (SMT) contact and the second surface mount technology (SMT) contact are metal sheets, the first surface mount technology (SMT) contact is partially embedded in the second surface mount technology (SMT) contact A support portion, and the second surface mount technology (SMT) contact is partially embedded in the second support portion.

In one embodiment, wherein the material of the light guide body is plastic, the first supporting part is made of plastic injection molding to partially cover the first surface mount technology (SMT) contact, and the second supporting part is made of plastic An injection molded portion encapsulates the second surface mount technology (SMT) contact.

In one embodiment, the metal sheet is made of copper.

The following disclosure provides different embodiments or examples to implement different features of the provided subject matter. The specific examples of the components and arrangements described below are for the purpose of simplifying the present disclosure, and are not intended to be limiting; the size and shape of the elements are not limited by the disclosed range or numerical values, but may depend on the process conditions or required requirements of the elements. characteristic. For example, the technical features of the present invention are described using sectional views, which are schematic diagrams of idealized embodiments. Thus, variations in the shapes shown as a result of manufacturing processes and/or tolerances are foreseeable and should not be limiting.

Furthermore, spatial relative terms such as "below", "below", "below", "above" and "above" are for ease of description of the elements depicted in the drawings or the relationship between features; moreover, spatially relative terms encompass different orientations of elements in use or operation in addition to the orientation depicted in the illustrations.

First, please refer to FIG. 1 . FIG. 1 is a schematic diagram of a light guide component according to an embodiment of the present invention. As shown in FIG. 1 , a light guide component 100 according to an embodiment of the present invention includes: a light guide body 10 , a first surface mount technology (SMT) contact 20 and a second surface mount technology (SMT) contact 22 . The light guide component 100 is used to guide light from a light source 30 below. The first surface mount technology (SMT) contact 20 and the second surface mount technology (SMT) contact 22 are used to combine the light guide body 10 and the printed circuit board 1 (as shown in FIG. 2 ).

In this embodiment, the light guide body 10 has a first support portion 10b, a second support portion 10c and an L-shaped extension portion 10a connected to each other. A first surface mount technology (SMT) contact 20 is provided on the lower surface of the first support portion 10b; in addition, a second surface mount technology (SMT) contact 22 is also provided on the lower surface of the second support portion 10c. .

Next, please refer to FIG. 2 . FIG. 2 is a schematic diagram illustrating an arrangement of a light guide component on a printed circuit board according to an embodiment of the present invention. As shown in FIG. 2 , it should be noted that this figure shows the light guide component 100 of this embodiment of the present invention and a pair of light guide components 200 in proportion. That is to say, in addition to using FIG. 2 to illustrate how the light guide member 100 of this embodiment of the present invention is arranged on the printed circuit board 1, the light guide member 200 of the comparative example is also shown on the printed circuit board 1 of FIG. 2 The holes 50a and 52a of the buckle are used to compare and illustrate the difference between the configuration of the light guide member 100 of this embodiment of the present invention and the light guide member 200 of the comparative example on the printed circuit board 1 by using FIG. 2 .

Regarding the light guide component 100 of this embodiment of the present invention, as shown in FIG. The SMT contact 22 is connected to a second solder paste 22 a pre-disposed on the printed circuit board 1 , so that the light guide component 100 is fixed on the printed circuit board 1 . In this way, the light guide component 100 can be fixed on the printed circuit board 1 without opening holes in the printed circuit board 1 .

Regarding the light guide part 200 of the comparative example, as shown in FIG. 2 , the light guide part 200 includes: a light guide body 40 , a first buckle part 50 and a second buckle part 52 . The light guide body 40 has a supporting portion 40b, a supporting portion 40c and an L-shaped extending portion 40a connected to each other. A buckle portion 50 is formed on the lower surface of the support portion 40b; in addition, a buckle portion 52 is also formed on the lower surface of the support portion 40c. The buckle part 50 is correspondingly inserted into the opening 50a, and the buckle part 52 is correspondingly inserted into the opening 52a. After being combined with each other, the step of fixing the light guide component 200 to the printed circuit board 1 is completed. It should be noted that, as mentioned above, the light guide component 100 of the embodiment of the present invention is fixed on the printed circuit board 1 by using surface mount technology, and there is no need to open holes in the printed circuit board 1 .

In addition, please refer to FIG. 3 . FIG. 3 is a schematic view showing the appearance of a light guide component disposed on a printed circuit board according to an embodiment of the present invention. As shown in Fig. 2 and Fig. 3, in the embodiment of the present invention, corresponding light source switches 60, 62, 64 and so on, to switch the light source 30 and the corresponding light source. It should be noted here that some corresponding light source switches in FIG. 2 and FIG. 3 are not fully shown. Moreover, the light guide members 102, 104, 106, 108 have the same structure as the light guide member 100, and can be fixed on the printed circuit board 1 in the same way as the light guide member 100 without opening holes on the printed circuit board 1. .

In this embodiment, the first support portion 10b and the second support portion 10c are an inverted U-shaped structure, and the L-shaped extension portion 10a is upward from the midpoint of the connecting portion between the first support portion 10b and the second support portion 10c Extending, and wherein viewed from a plan view, the L-shaped extending portion 10a is perpendicular to the connecting portion between the first supporting portion 10b and the second supporting portion 10c.

In this embodiment, the first surface mount technology (SMT) contact 20 and the second surface mount technology (SMT) contact 22 are metal sheets, and the first surface mount technology (SMT) contact 20 is partially embedded in the first support part 10b, and the second surface mount technology (SMT) contacts 22 are partially embedded in the second supporting part 10c.

In this embodiment, the material of the light guide body 10 is plastic, the first supporting part 10b is partially coated with the first surface mount technology (SMT) contact 20 by plastic injection molding, and the second supporting part 10c is made of plastic The injection molded part covers the second surface mount technology (SMT) contact 22 .

In this embodiment, the material of the metal sheet is copper.

To sum up, as far as the light guide part 200 of the comparative example is concerned, it is fixed to the printed circuit board by means of buckles, which must be done manually. When the required quantity is large, it is easy to generate high operating costs, and the printed circuit board must be printed. Holes, it is not easy to route (LAYOUT) when the space is insufficient or the lines are complicated. On the contrary, in order to improve the problems of the light guide part 200 of the comparative example, the light guide part 100 of this embodiment of the present invention was developed, and the buckle was changed to a metal sheet injection method in a plastic mold, so as to achieve the available surface adhesion technology (SMT) production method, the printed circuit board does not need to open holes, but also increases the wiring (LAYOUT) space and flexible use.

The above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced. Without departing from the spirit and scope of the technical solution of the present invention.

1: Printed circuit board 10: Light guide body 10a: L-shaped extension 10b: the first support part 10c: the second support part 20: The first surface mount technology (SMT) contacts 20a: The first solder paste 22: Second surface mount technology (SMT) contacts 22a: Second solder paste 30: light source 40: Light guide body 40a: L-shaped extension 40b, 40c: support part 50, 52: buckle part 50a, 52a: opening 60, 62, 64: light switch 100, 102, 104, 106, 108, 200: light guide components

In order to make the above and other objects, features, advantages and embodiments of the present invention more understandable, the accompanying drawings are described as follows: FIG. 1 is a schematic diagram illustrating a light guide component according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing the configuration of the light guide component on the printed circuit board according to an embodiment of the present invention. FIG. 3 is a schematic diagram showing the appearance of a light guide component disposed on a printed circuit board according to an embodiment of the present invention.

In accordance with common practice, the various features and elements in the drawings are not drawn to scale, but are drawn in order to best represent the specific features and elements relevant to the invention. In addition, the same or similar reference symbols refer to similar elements and parts in different drawings.

10: Light guide body

10a: L-shaped extension

10b: the first support part

10c: the second support part

20: The first surface mount technology (SMT) contacts

22: Second surface mount technology (SMT) contacts

30: light source

Claims (5)

A light guide component comprising: A light guide body, the light guide body has a first support part connected to each other, a second support part and an L-shaped extension part, and a first surface mount technology (SMT) is provided on the lower surface of the first support part A contact, the lower surface of the second supporting portion also has a second surface mount technology (SMT) contact; Wherein, the first surface mount technology (SMT) contact and the second surface mount technology (SMT) contact are respectively connected to a first solder paste and a second solder paste pre-configured on a printed circuit board, and are fixed on the on the printed circuit board. The light guide member according to claim 1, wherein the first support part and the second support part are an inverted U-shaped structure, and the L-shaped extension part is from between the first support part and the second support part A midpoint of the connecting portion extends upwards, and wherein viewed from a plan view, the L-shaped extending portion is perpendicular to the connecting portion between the first supporting portion and the second supporting portion. The light guide component according to claim 1, wherein the first surface mount technology (SMT) contact and the second surface mount technology (SMT) contact are metal sheets, and the first surface mount technology (SMT) contact The first supporting portion is partially embedded, and the second surface mount technology (SMT) contact is partially embedded in the second supporting portion. The light guide component as described in Claim 3, wherein the material of the light guide body is plastic, and the first support part covers the first surface mount technology (SMT) contact with a plastic injection molding part, and the second The supporting part is partly covered by plastic injection molding to the second surface mount technology (SMT) contact. The light guiding component as claimed in claim 3, wherein the material of the metal sheet is copper.

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