CN218095770U

CN218095770U - Prevent leaded light structure of cluster light and have its printer

Info

Publication number: CN218095770U
Application number: CN202221849418.6U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhuhai Hengsheng Barcode Equipment Co Ltd
Current assignee: Zhuhai Hengsheng Barcode Equipment Co Ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-12-20
Anticipated expiration: 2032-07-18

Abstract

The utility model relates to the technical field of circuit boards, in particular to a crosstalk-proof light guide structure and a printer with the same, wherein the crosstalk-proof light guide structure comprises a light-insulating piece which is arranged between a PCB (printed circuit board) and a panel, a plurality of light-transmitting holes which are arranged at intervals are arranged on the light-insulating piece, and a plurality of light-transmitting holes are correspondingly sleeved on an LED lamp bead; the light guide columns are correspondingly inserted into the light transmission holes and extend from the upper end face of the PCB to the lower end face of the panel; the utility model discloses a light-directing structure sets up a plurality of spaced light traps on separating light spare, separates light spare and installs between PCB board and panel and the light trap corresponds the cover and establish on LED lamp pearl, guarantees to separate light effect, prevents that two adjacent LED lamp pearls from bunching, and the correspondence of leaded light post is installed in the light trap and is extended to the panel, the utility model discloses a light-directing structure can prevent effectively that two adjacent LED lamp pearls from bunching, and simple structure, equipment convenient and fast moreover improve the cost lower.

Description

Prevent leaded light structure of cluster light and have its printer

Technical Field

The utility model relates to a circuit board technical field especially relates to a prevent light-directing structure of cluster light and have its printer.

Background

The printer need use the circuit board, is provided with a lot of LED display lamps on the circuit board usually, in order to prevent that luminous the shining of an LED from shining on another LED and on the leaded light post, causing the light crosstalk each other between the adjacent LED lamp in circuit board surface, give the signal judgement of user's mistake, and a lot of circuit boards all design have the structure of preventing the light crosstalk.

Among the current anti-crosstalk structure, there is the structure complicacy mostly, and the equipment is troublesome, still occupies the problem in great space, influences the line design of walking of circuit board, leads to the cost-push of product.

SUMMERY OF THE UTILITY MODEL

In order to solve one of the technical problems existing in the prior art, the utility model adopts the following technical scheme:

a light guide structure that prevents crosstalk, comprising:

the light-shielding part is arranged between the PCB and the panel, a plurality of light holes which are arranged at intervals are arranged on the light-shielding part, and the plurality of light holes are correspondingly sleeved on the LED lamp beads;

and the light guide columns are correspondingly inserted into the light transmission holes and extend from the upper end surface of the PCB to the lower end surface of the panel.

In some possible implementation manners, a step is disposed in the middle of the light guide pillar, a plurality of bosses are disposed on the light-shielding member, the light-transmitting holes are formed in the bosses, and the step can be overlapped on the bosses.

In some possible implementations, the panel is further provided with a mounting hole into which the light guide post can be inserted.

In some possible implementation manners, a first light guide portion is disposed at an upper end of the step, a second light guide portion is disposed at a lower end of the step, an outer diameter of the first light guide portion is matched with an aperture of the mounting hole, and the second light guide portion is in a conical column shape.

In some possible implementations, a length dimension of the second light directing portion is less than a height dimension of the bosses.

In some possible implementations, the lower end surface of the panel is further provided with a light-shielding plate, and the light-shielding plate can be inserted into an area between the two light-transmitting holes on the light-shielding member.

In some possible implementations, a side surface of the step is coated with a light shielding layer.

In some possible implementations, the lower end face of the panel is provided with a mounting frame that can be placed over the light barrier.

The utility model also provides a printer, this printer include panel and PCB board, still include like the light-directing structure of above-mentioned embodiment, light-directing structure set up in the panel with between the PCB board.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a light-directing structure sets up a plurality of spaced light traps on separating light spare, separates light spare and installs between PCB board and panel and the light trap corresponds the cover and establish on LED lamp pearl, guarantees to separate light effect, prevents that two adjacent LED lamp pearls from bunching, and the correspondence of leaded light post is installed in the light trap and is extended to the panel, the utility model discloses a light-directing structure can prevent effectively that two adjacent LED lamp pearls from bunching, and simple structure, equipment convenient and fast moreover improve the cost lower.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an exploded schematic view of a light guide structure according to an embodiment of the present invention;

fig. 2 is a partial cross-sectional three-dimensional view of a light guide structure provided by an embodiment of the present invention;

fig. 3 is a schematic full-sectional view of a light guide structure provided by an embodiment of the present invention.

Reference numerals:

a PCB board 100; an LED lamp bead 101;

a panel 200; an optical isolation plate 201; a mounting frame 202; a mounting hole 203;

a light-blocking member 300; a light-transmitting hole 301; a boss 302;

a light guide pillar 400; a first light guide portion 401; a second light directing portion 402; a step 403.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to fig. 3, a light guide structure for preventing crosstalk is shown, the light guide structure is installed between a panel 200 and a PCB 100, the light guide structure includes a light-shielding member 300 and a plurality of light guide posts 400, a plurality of light transmission holes 301 spaced from each other are provided on the light-shielding member 300, the plurality of light transmission holes 301 can be correspondingly sleeved on a plurality of LED lamp beads 101 of the PCB 100, interference of light emitted by the LED lamp beads 101 to the adjacent LED lamp beads 101 is effectively prevented, the light guide posts 400 extend from the upper end surface of the PCB 100 to the lower end surface of the panel 200, the light guide posts 400 are correspondingly inserted into the light transmission holes 301, so that light emitted by the LED lamp beads 101 can be emitted from the panel 200 along the upper end surface of the light guide posts 400, and the light-shielding member 300 can be directly sleeved on the PCB 100, and then is pressed and fixed by the panel 200 and the PCB 100, the structure is simple and convenient to assemble.

It should be noted that the mounting and fixing manner of the light-shielding member 300 is not limited to the panel 200 and the PCB 100 being clamped and fixed, but the light-shielding member 300 may also be fixedly mounted on the PCB 100 through a screw connection, at this time, the light-transmitting holes 301 are correspondingly disposed on the LED lamp beads 101, the light-guiding columns 400 are placed in the light-transmitting holes 301, and finally, the panel 200 and the PCB 100 are fixed; in another assembly method, the light-shielding member 300 may be first installed on the panel 200, the light guide pillar 400 is located between the panel 200 and the light-shielding member 300, and then the panel 200 is correspondingly covered on the PCB 100.

In some possible implementation manners, the middle of the light guide pillar 400 is provided with a step 403, the light-shielding member 300 is provided with a plurality of bosses 302, the light-transmitting hole 301 is formed on the bosses 302, the step 403 can be overlapped on the bosses 302, that is, the light guide pillar 400 is overlapped on the light-shielding member 300 through the step 403, and then is clamped and fixed by the PCB 100 and the panel 200, which has a simple structure and is convenient to assemble.

In some possible implementation manners, the panel 200 is further provided with a mounting hole 203 into which the light guide column 400 can be inserted, and light emitted by the led lamp bead 101 can only pass through the light guide column 400 and be emitted from the mounting hole 203, so as to further improve the light cross-talk prevention effect of the light guide structure.

In some possible implementations, a first light guide part 401 is disposed at an upper end of the step 403, a second light guide part 402 is disposed at a lower end of the step 403, an outer diameter of the first light guide part 401 is matched with an aperture of the mounting hole 203, and the second light guide part 402 is in a tapered column shape. The first light guide part 401 can be inserted into the mounting hole 203, and the second light guide part 402 can be inserted into the light transmitting hole 301, so that the light cross-talk prevention effect of the light guide structure is further improved.

In some possible implementations, the length dimension of the second light guide part 402 is smaller than the height dimension of the boss 302, so as to avoid the second light guide part 402 from abutting or pressing against the LED lamp bead 101 to damage the LED lamp bead during installation.

In some possible implementation manners, the lower end surface of the panel 200 is further provided with a light-shielding plate 201, the light-shielding plate 201 protrudes from the lower end surface of the panel 200 toward the direction of the PCB 100, the light-shielding plate 201 can be inserted between two adjacent light-transmitting holes 301 at the light-shielding member 300, that is, between two adjacent bosses 302, at this time, the bosses 302 and the light-shielding plate 201 cooperate to completely shield two adjacent light-guiding columns 400, and thus complete light crosstalk prevention is achieved.

In some possible implementation manners, the side surface of the step 403 is coated with a light shielding layer, in this embodiment, the first light guide part 401 is completely inserted into the mounting hole 203, the second light guide part 402 is completely inserted into the light transmitting hole 301, only the step 403 portion between two adjacent light guide columns 400 may generate crosstalk, and in this embodiment, the light shielding layer is coated on the side surface of the step 403, so that the effect of completely preventing crosstalk is achieved.

In some possible implementations, the lower end surface of the panel 200 is further provided with a mounting frame 202 that can be covered on the light-shielding member 300, and the mounting frame 202 can not only position the mounting position of the light-shielding member 300 on the panel 200, but also block light from being emitted from the step 403 portion to between the panel 200 and the PCB board 100.

The utility model also provides a printer, this printer include panel 200 and PCB board 100, still include like the light-directing structure of embodiment above, and this light-directing structure installs between panel 200 and PCB board 100 and the lid is established on LED lamp pearl 101.

The above description is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or replacements within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a prevent light guide structure of cluster light which characterized in that includes:

the light-insulating piece (300) is arranged between the PCB (100) and the panel (200), a plurality of light holes (301) are arranged on the light-insulating piece (300) at intervals, and the plurality of light holes (301) are correspondingly sleeved on the LED lamp beads (101);

the light guide columns (400) are correspondingly inserted into the light holes (301) and extend from the upper end face of the PCB (100) to the lower end face of the panel (200).

2. The light guide structure of claim 1, wherein a step (403) is disposed in the middle of the light guide pillar (400), a plurality of bosses (302) are disposed on the light-shielding member (300), the light holes (301) are formed on the bosses (302), and the step (403) can overlap the bosses (302).

3. The light guide structure of claim 2, wherein the panel (200) is further provided with a mounting hole (203) for inserting the light guide pillar (400).

4. The crosstalk-proof light guide structure according to claim 3, wherein a first light guide part (401) is disposed at an upper end of the step (403), a second light guide part (402) is disposed at a lower end of the step (403), an outer diameter of the first light guide part (401) is matched with an aperture of the mounting hole (203), and the second light guide part (402) is in a tapered column shape.

5. The light guide structure of claim 4, wherein the second light guide portion (402) has a length dimension smaller than a height dimension of the projection (302).

6. The structure of claim 1, wherein a light-shielding plate (201) is further disposed on the lower end surface of the panel (200), and the light-shielding plate (201) is insertable into a region of the light-shielding member (300) between the two light-transmitting holes (301).

7. The light guide structure for preventing light crosstalk according to claim 2, wherein the side surface of the step (403) is coated with a light shielding layer.

8. The light guide structure of claim 1, wherein the lower end surface of the panel (200) is provided with a mounting frame (202) capable of covering the light-shielding member (300).

9. A printer comprising a panel (200) and a PCB board (100), further comprising a light guiding structure according to any of claims 1 to 8, said light guiding structure being arranged between said panel (200) and said PCB board (100).