TWM458617U - An assembled structure of a barcode-reader - Google Patents

Abstract

An assembled structure of a bar-code reader includes a casing, a decoding board, an optical module, at least two first screws, a photosensitive element, at least two illuminating modules, a cover element and at least two second screws. The casing has two containing space which is disposed opposite of the casing therein, and a slot disposed between the two containing space. The decoding board is disposed below the casing and has two fist threaded hole. The two first screws respectively lock the first threaded holes to fix the casing and the decoding board. The photosensitive unit is disposed at one side of the interior of the casing. The two illuminating modules are disposed at the two containing spaces, each illuminating module includes an astigmatic lens and a light source, the light sources faces away from the photosensitive element, and the astigmatic lens is disposed opposite of the light sources. The optical module is disposed between the two astigmatic lens, which includes two imaging lens, and the imaging lens combine symmetrical to each other. The cover element is covered at the top of the casing and has two second threaded holes. The two second threaded holes lock in the second screws to fixe the casing and the cover element.

Description

Bar code reader assembly structure

This creation is related to a bar code reader, in particular to an assembly structure of a bar code reader for reading a one-dimensional bar code.

Barcode technology is an automatic identification technology developed and developed in computer application and practice. It has the advantages of fast input speed, high accuracy, low cost and high reliability. It has been widely used in commercial, postal, library management and warehousing. In the fields of industrial production program control, transportation, etc., it plays an important role in today's automatic identification technology.

However, to interpret the barcode, you need to use a barcode reader. The conventional barcode reader 1 is shown in FIG. 1. The light emitted by the light source 2 of the barcode reader 1 itself is transmitted to a scanning system 4 via an optical fiber tube 3. The scanning system 4 may include optical components such as diffusing mirrors, collecting rods or mirrors for converting the light emitted by the light source 2 into a flat strip beam to illuminate the barcode. The photoelectric converter 5 receives the light reflected by the bar code, converts the light and dark of the reflected light into a digital signal, and transmits the digital signal to the interpretation decision circuit 7 through the electric wire 6. In this way, information such as the price, inventory, and date of manufacture of the product is obtained.

In general, in order to obtain a far greater readable distance, the volume of the bar code reader and the parts inside it are typically larger to provide a beam of higher brightness. However, in order to generate a high-intensity light beam, the conventional bar code reader 1 mostly uses a bulb-type light-emitting diode or a laser light source as its light source 2, and thus it is difficult to reduce the power consumption. In order to increase the readable distance, the volume of the optical components in the scanning system 4 of the conventional barcode reader 1 is generally difficult to reduce, and the distance between the scanning system 4 and the barcode, the distance between the photoelectric converter 5 and the barcode It is difficult to shorten, and its parts are many and the production method is complicated.

In view of this, how to make the bar code reader shrink in size, simplify its parts, make its parts recyclable and reuse, and easy to disassemble, has become the object of this creation.

One of the aims of this creation is to provide a bar code reader that is small in size and simple in terms of parts.

Another object of the present invention is to provide an assembly structure of a bar code reader that can be easily disassembled to make parts recyclable.

In order to achieve the above object, the present invention provides an assembly structure of a barcode reader, which comprises a casing, a decoding circuit board, at least two first screws, a photosensitive element, at least two lighting modules, an optical module, An upper cover and at least two second screws. The housing has two receiving spaces respectively disposed on opposite sides of the housing and a card slot between the two receiving spaces. The housing has a bottom surface, and the bottom surface has a plurality of first slots. The decoding circuit board is disposed below the outer surface of the bottom surface and parallel to the bottom surface, and the decoding circuit board has two first screw holes, and the first screw holes are respectively located below the relative accommodating spaces. The two first screws are respectively locked to the first screw holes to fix the housing and the decoding circuit board. The photosensitive element is mounted in the first slot of the housing after the decoding circuit board is locked to the housing and is approximately perpendicular to the decoding circuit board. The photosensitive element has a plurality of hemispherical first grooves, and the first groove is Corresponding to the first copper piece of the decoding circuit board, respectively. The two illumination modules are respectively disposed in two accommodating spaces in the housing. Each of the illumination modules includes an astigmatic lens and a light source. The light source is opposite to the photosensitive element, and the astigmatism lens is disposed opposite the light source. The optical module is disposed in the card slot and between the two astigmatic lenses. The optical module includes two imaging lenses, and the two imaging lenses are symmetrically coupled to each other. The upper cover covers the upper part of the housing and has two second screw holes, and the second screw holes are located above the opposite card slots. The two second screws are respectively locked to the second screw holes to fix the housing and the upper cover.

In one embodiment, the decoding circuit board is electrically connected to the photosensitive element, and the decoding circuit board has a plurality of first copper pieces and a plurality of second copper pieces on the surface thereof, the first copper pieces facing The photosensitive element, and the second copper sheets face the light source of the optical module.

In one embodiment, the photosensitive element is electrically connected to the decoding circuit board by soldering.

In one embodiment, the light source is electrically connected to the decoding circuit board by soldering.

In one embodiment, the light source is a surface-adhesive red light emitting diode.

10‧‧‧shell

11‧‧‧ bottom surface

12a, 12b‧‧‧ accommodation space

13‧‧‧First slot

14‧‧‧ card slot

15‧‧‧second slot

20‧‧‧Decoding circuit board

22a, 22b‧‧‧ first screw

24a, 24b‧‧‧ first screw hole

26‧‧‧First copper sheet

30‧‧‧Photosensitive elements

36‧‧‧First groove

40a, 40b‧‧‧ lighting modules

42a, 42b‧‧‧ light source

44a, 44b‧‧‧ astigmatic lenses

50‧‧‧Optical module

52a, 52b‧‧‧ imaging lens

60‧‧‧Upper cover

62a, 62b‧‧‧second screw

64a, 64b‧‧‧ second screw hole

FIG. 1 is a schematic structural diagram of a conventional barcode reader.

2 is an assembled structure of a bar code reader according to an embodiment of the present invention.

Figures 3-7 show the assembly sequence of the bar code reader.

FIG. 8 is a schematic diagram of a soldering circuit of a decoding circuit board and a photosensitive element which is one of the implementations of the present invention.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. The directional terms mentioned in the following embodiments, such as upper, lower, left, right, front or rear, etc., are only used to refer to the directions of the accompanying drawings. Therefore, the directional terms are used for illustration only and are not intended to limit the invention.

Please refer to FIG. 2, which is an assembly structure of a barcode reader according to an embodiment of the present invention. The assembly structure of the barcode reader comprises a casing 10, a decoding circuit board 20, at least two first screws 22a, 22b, a photosensitive element 30, at least two lighting modules 40a, 40b, an optical module 50, and an upper cover. 60, and at least two second screws 62a, 62b. The housing 10 has two receiving spaces 12a, 12b respectively disposed on opposite sides of the housing and a card slot 14 between the two receiving spaces 12a, 12b.

The assembly sequence of the barcode reader is as shown in Figures 3-7. The housing 10 has a bottom surface 11 having a first slot 13. The decoding circuit board 20 is disposed below the outer surface of the bottom surface 11 and parallel to the bottom surface 11. The decoding circuit board has a plurality of first copper sheets 26 on the surface thereof, corresponding to the first slot 13, and the decoding circuit board 20 has two The first screw holes 24a, 24b are respectively located below the opposite accommodating spaces 12a, 12b, and the two first screws 22a, 22b are respectively locked to the first screw holes 24a, 24b to fix the shell. Body 10 and decoding circuit board 20 (Fig. 3). The photosensitive element 30 is mounted on the first slot 13 after the decoding circuit board 20 is locked to the housing 10 and perpendicular to the decoding circuit board 20 (FIG. 4). The photosensitive element 30 has a plurality of hemispherical first grooves 36. The first recesses 36 correspond to the first copper strips 26 of the decoding circuit board 20, respectively. For details, refer to FIG. The two illumination modules 40a, 40b are respectively disposed in the two accommodating spaces 12a, 12b in the housing. Each of the illumination modules 40a, 40b includes a astigmatic lens 44a, 44b and a light source 42a, 42b. The light sources 42a, 42b are opposite each other. Photosensitive element 30 (Fig. 5), and astigmatic lenses 44a, 44b are disposed opposite the light sources 42a, 42b (Fig. 6). The light sources 42a, 42b can provide high-brightness red light, such as a surface-adhesive red light-emitting diode, which is more power-saving than conventional light sources and has a smaller volume without affecting brightness. The light beams emitted from the light sources 42a, 42b are uniformly diffused in the horizontal direction after passing through the astigmatic lenses 44a, 44b, and are concentrated in the vertical direction to form a horizontal scanning beam. The optical module 50 is disposed in the card slot 14 and between the two astigmatic lenses 44a, 44b (FIG. 6). The optical module 50 includes two imaging lenses 52a, 52b, and the two imaging lenses 52a, 52b are symmetrically coupled with each other. 52b has a concave spherical surface S1 and a convex spherical surface S2 on the opposite side of the imaging lens 52a, opposite to each other, and the imaging lens 52a has the same structure as the imaging lens 52b (Fig. 6A). The upper cover 60 covers the upper part of the housing 10 and has two second screw holes 64a, 64b. The second screw holes 64a, 64b are located above the opposite slots 14, and the second screws 62a, 62b are respectively locked to the first cover. The two screw holes 64a, 64b fix the housing 10 and the upper cover 60 (Fig. 7).

As shown in FIG. 8, it is a schematic diagram of a soldering point of the decoding circuit board 20 and the photosensitive element 30 which is one of the implementations of the present invention. The decoding circuit board 20 has a plurality of first copper sheets 26 on the surface thereof, the first copper sheet 26 faces the photosensitive element 30, and the photosensitive element 30 has a plurality of hemispherical first grooves 36, and the first grooves 36 Corresponding to the first copper sheet 26, a gap is formed between the first copper sheet 26 and the first recess 36, and solder is soldered into the gap to fill the first recess 36, so that the decoding circuit board 20 can be electrically Connected to the photosensitive element 30. The bottom surface 11 of the housing has a plurality of second slots 15 (shown in FIG. 3), and the light sources 42a, 42b are mounted in the second slot 15 and approximately perpendicular to the decoding circuit board 20. The decoding circuit board 20 further has a plurality of second copper sheets 28 (not shown) on the surface thereof, the second copper sheets face the light sources 42a, 42b, and the light sources 42a, 42b have a plurality of hemispherical second grooves. The second recesses respectively correspond to the second copper strip, and a gap is formed between the second copper strip and the second recess, and the solder is soldered into the gap to fill the second recess, so that the decoding circuit board 20 can be electrically Connected to light sources 42a, 42b.

In summary, the present embodiment can achieve the expected effect, and the specific structure disclosed is not only seen in similar products, but also not disclosed before the application, Cheng has fully complied with the provisions of the Patent Law and It is required that if an application for a new type of patent is filed in accordance with the law, and the application for a patent is granted, the patent will be granted.

10‧‧‧shell

12a, 12b‧‧‧ accommodation space

14‧‧‧ card slot

20‧‧‧Decoding circuit board

22a, 22b‧‧‧ first screw

30‧‧‧Photosensitive elements

40a, 40b‧‧‧ lighting modules

42a, 42b‧‧‧ light source

44a, 44b‧‧‧ astigmatic lenses

50‧‧‧Optical module

60‧‧‧Upper cover

62a, 62b‧‧‧second screw

Claims (5)

An assembly structure of a bar code reader, comprising: a casing having two accommodating spaces respectively disposed on opposite sides of the casing and a card slot between the two accommodating spaces, the casing having a bottom surface having a first slot; a decoding circuit board disposed below the outer surface of the bottom surface of the housing and parallel to the bottom surface, the decoding circuit board having two first screws The first screw holes are located below the accommodating spaces, and the decoding circuit board has a plurality of first copper sheets on the surface thereof corresponding to the first slots; at least two first screws, The first screws are respectively locked to the first screw holes to fix the housing and the decoding circuit board; a photosensitive element is mounted on the shell after the decoding circuit board is locked to the housing The first slot inside the body and approximately perpendicular to the decoding circuit board, the photosensitive element having a plurality of hemispherical first grooves, the first grooves respectively corresponding to the first of the decoding circuit boards Copper sheet; at least two lighting modules, respectively mounted on Each of the illumination modules includes a astigmatic lens and a light source, the light source is opposite to the photosensitive element, and the astigmatism lens is disposed opposite the light source; an optical module is disposed on the Between the two slots, the optical module includes two imaging lenses, and the two imaging lenses are symmetrically coupled to each other; an upper cover covering the housing and having two second screw holes The second screw holes are located above the card slot; at least two second screws are respectively locked to the second screw holes to fix the housing and the upper cover. The assembly structure of the barcode reader of claim 1, wherein the bottom surface of the housing has a plurality of second slots, the light source is mounted in the second slot and is approximately perpendicular to the Decode the board. The assembly structure of the barcode reader according to claim 2, wherein the photosensitive element is electrically connected to the decoding circuit board by soldering. An assembly structure of a barcode reader as described in claim 1, wherein the The light source is electrically connected to the decoding circuit board by soldering. The assembly structure of the barcode reader according to claim 1, wherein the light source is a surface-adhesive red light-emitting diode.