Code reader

Abstract

The utility model discloses a code reader, which comprises a shell, a rear cover and a host module, the host module is accommodated in the shell, and the rear cover is connected with the shell and covers the host module; the host module comprises a fixed support, and a master control circuit board, a signal control circuit board, an image sensor, a lens and an illumination circuit board which are all fixed on the fixed support. The lighting circuit board is located at one end, back to the rear cover, of the fixing support and electrically connected with the main control circuit board, and the image sensor is located at one end, facing the rear cover, of the fixing support and electrically connected with the signal control circuit board. The signal control circuit board and the main control circuit board are respectively arranged on two opposite sides of the image sensor and are electrically connected with each other; the front end face, opposite to the rear cover, of the shell is provided with a plurality of light through holes through which light of the lighting circuit board can irradiate outwards or the image sensor can capture external images. The technical problem that an existing code reader is large in size is mainly solved.

Description

Technical Field

[0001] This utility model relates to the field of barcode reader technology, and in particular to a barcode reader. Background Technology

[0002] Currently, barcode readers are widely used to identify barcodes or QR codes. To meet the demand for high-speed reading, in addition to the main control circuit board, a signal control circuit board is also installed inside the barcode reader. The layout of core components such as the illumination circuit board, main control circuit board, signal control circuit board, lens, and image sensor inside the existing high-resolution high-speed barcode readers is not reasonable enough, resulting in the problem that the high-resolution high-speed barcode readers are large in size and cannot meet the installation requirements of some compact spaces. Therefore, it is necessary to improve the existing barcode readers. Utility Model Content

[0003] This utility model provides a barcode reader, which mainly solves the technical problem that existing barcode readers are too bulky.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A barcode reader includes a housing, a back cover, and a main unit module;

[0006] The host module is housed within the housing, and the rear cover is connected to the housing and covers the host module.

[0007] The host module includes a fixed bracket and a main control circuit board, a signal control circuit board, an image sensor, a lens, and an illumination circuit board, all fixed on the fixed bracket. The illumination circuit board is located at the end of the fixed bracket facing away from the rear cover and is electrically connected to the main control circuit board. The image sensor is located at the end of the fixed bracket facing the rear cover and is electrically connected to the signal control circuit board. The signal control circuit board and the main control circuit board are located on opposite sides of the image sensor and are electrically connected to each other. The front surface of the housing facing away from the rear cover is provided with multiple light-transmitting holes for the illumination circuit board to emit light outwards or for the image sensor to capture external images.

[0008] In one of the technical solutions, the signal control circuit board and the main control circuit board are electrically connected by plugging each other in through a connector.

[0009] In one of the technical solutions, the inner wall of the outer shell is provided with a first positioning structure, and the side of the fixed bracket facing away from the rear cover is provided with a second positioning structure that cooperates with and connects to the first positioning structure.

[0010] In one of the technical solutions, the first positioning structure is a positioning post disposed on the inner wall of the outer shell, and the second positioning structure is a positioning hole that mates with the positioning post.

[0011] In one of the technical solutions, the inner wall of the back cover is provided with a limiting groove for restricting the position of the rear end of the host module.

[0012] In one of the technical solutions, the main control circuit board is inserted into the limiting groove.

[0013] In one of the technical solutions, a plurality of clearance holes are provided on the outer wall of the housing, which are used to avoid indicator lights, push-button switches or buzzers.

[0014] In one of the technical solutions, a notch extending into the interior is provided on the outer side wall of the back cover, and the barcode reader also includes a cable electrically connected to the host module, the cable passing through the notch.

[0015] In one of the technical solutions, the barcode reader further includes a window assembly, which includes a window cover and a light-transmitting window sheet fixed to the window cover. The window cover is fixed to one end of the outer casing facing away from the rear cover, and the window sheet covers a plurality of light-transmitting holes.

[0016] In one of the technical solutions, a locking screw is connected between the side wall of the window cover and the side wall of the outer casing.

[0017] Compared with the prior art, the barcode reader provided by this utility model has at least the following beneficial effects:

[0018] This solution fixes the main control circuit board, signal control circuit board, image sensor, lens, and illumination circuit board onto a mounting bracket to assemble them into a main unit module that can be easily installed into a housing. This allows the main unit module to be assembled externally and then installed inside the housing, reducing the overall size of the barcode reader. Furthermore, this solution specifically designs the illumination circuit board and image sensor to be arranged along the front-to-back direction of the mounting bracket, and the signal control circuit board and main control circuit board to be located on opposite sides of the image sensor. This makes the entire main unit module structure more compact and easier to assemble, further reducing its size and thus the overall barcode reader size. In summary, this solution allows the barcode reader to achieve both high-efficiency barcode reading and a small size, meeting the installation requirements of some compact spaces. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 An exploded view of the structure of a barcode reader provided in an embodiment of this application;

[0021] Figure 2 An exploded view of the structure of a barcode reader provided in an embodiment of this application;

[0022] Figure 3 A schematic diagram of the outer casing provided in the embodiments of this application;

[0023] Figure 4 This is a schematic diagram of the outer casing from another angle, provided as an embodiment of this application.

[0024] Figure 5 This is a schematic diagram of the structure of the back cover provided in an embodiment of this application.

[0025] Figure label:

[0026] 1. Outer shell; 11. Light-transmitting hole; 12. Clearance hole; 13. First positioning structure; 2. Back cover; 21. Notch; 22. Limiting groove; 3. Main module; 31. Fixing bracket; 311. Second positioning structure; 32. Main control circuit board; 33. Signal control circuit board; 34. Image sensor; 35. Lens; 36. Illumination circuit board; 4. Cable; 5. Window assembly; 51. Window cover; 52. Window piece; 6. Locking screw. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] Please refer to the following: Figure 1 and Figure 2 This utility model provides a barcode reader, mainly comprising a housing 1, a rear cover 2, and a main module 3. The main module 3 is entirely housed inside the housing 1, and the rear cover 2 is connected to the housing 1 to cover the internal main module 3. Specifically, the main module 3 includes a mounting bracket 31, a main control circuit board 32, a signal control circuit board 33, an image sensor 34, a lens 35, and an illumination circuit board 36. The lens 35 is preferably a high-resolution lens. The lens 35 and the illumination circuit board 36 are both fixed to the front end of the mounting bracket 31 facing away from the rear cover 2. The image sensor 34 is fixed to the rear end of the mounting bracket 31 facing the rear cover 2. The main control circuit board 32 and the signal control circuit board 33 are respectively located on opposite sides of the image sensor 34 and are both fixedly connected to the mounting bracket 31. The illumination circuit board 36 is connected to the main control circuit board 34. Circuit board 32 is electrically connected, enabling the main control circuit board 32 to control the lighting circuit board 36 to turn on, off, or adjust its brightness. Image sensor 34 is electrically connected to signal control circuit board 33, enabling the signal control circuit board 33 to acquire signals collected by image sensor 34. Signal control circuit board 33 typically also integrates a power module, which supplies power to image sensor 34 and main control circuit board 32. Signal control circuit board 33 and main control circuit board 32 are electrically connected to each other, enabling the main control circuit board 32 to receive data processed by signal control circuit board 33. Multiple light-transmitting holes 11 are provided on the front surface of the outer casing 1 facing away from the rear cover 2. Some light-transmitting holes 11 allow light emitted from lighting circuit board 36 to shine outwards, while others allow image sensor 34 to capture external images. The specific working principle of the barcode reader is as follows:

[0033] The main control circuit board 32 controls the lighting circuit board 36 to illuminate the barcode or QR code. The brightness and on / off status of the lighting circuit board 36 can be dynamically adjusted by the main control circuit board 32 according to the ambient light intensity or scanning requirements. Next, the image sensor 34 captures the reflected light from the barcode or QR code, converts the light signal into an electrical signal, and transmits it to the signal control circuit board 33. Then, the signal control circuit board 33 amplifies, filters, and digitizes the signal from the image sensor 34, converts it into a digital signal, and transmits the processed digital signal to the main control circuit board 32. The main control circuit board 32 then decodes the barcode or QR code, converting the arrangement of black and white bars or blocks into numerical or character information according to the encoding rules (such as Code 128, QR Code, etc.). If a reading error is found, it attempts to reread the code. Alternatively, the main control circuit board 32 can control an indicator light to illuminate or control a buzzer to sound to prompt the user to rescan. Finally, the main control circuit board 32 transmits the decoded information to an external device (such as a computer, POS system, etc.) via wired or wireless means.

[0034] Please refer to the following: Figure 1 and Figure 5 The reader in this embodiment also includes a cable 4. A through-hole 21 is provided on the outer wall of the rear cover 2, through which the cable 4 passes. This cable 4 is electrically connected to the host module 3. The cable 4 can be used to power the host module 3, and it can also serve as a data transmission cable to transmit the information decoded by the main control circuit board 32 to the outside. Please refer to [link to relevant documentation]. Figure 4 The outer wall of the housing 1 has multiple clearance holes 12, which are used to avoid the installation of indicator lights, push-button switches, or buzzers. Please refer to the following again. Figure 1 The barcode reader in this embodiment also includes a window assembly 5, which includes a window cover 51 and a light-transmitting window sheet 52 fixed to the window cover 51. The window cover 51 is fixed to the front end of the outer casing 1 facing away from the rear cover 2, and the window sheet 52 covers multiple light-transmitting holes 11. The window assembly 5 is primarily designed to prevent external dust or liquids from entering the interior of the outer casing 1, reducing the risk of damage to the main unit module 3. The design of the window assembly 5 allows users to visually see the scanning area through the window, facilitating alignment of barcodes or QR codes. Simultaneously, the window assembly 5 also affects the appearance of the barcode reader, enhancing its overall aesthetics and professionalism.

[0035] Specifically, this solution fixes the main control circuit board 32, signal control circuit board 33, image sensor 34, lens 35, and illumination circuit board 36 onto the mounting bracket 31 to assemble them into a main unit module 3 that is easy to install into the housing 1. That is, the main unit module 3 can be assembled externally and then installed into the housing 1, which helps reduce the overall size of the barcode reader. Secondly, this solution specifically designs the illumination circuit board 36 and image sensor 34 to be arranged along the front-back direction of the mounting bracket 31, and the signal control circuit board 33 and main control circuit board 32 to be located on opposite sides of the image sensor 34. This makes the structure of the entire main unit module 3 more compact and easier to assemble, thus allowing for a smaller overall size and further reducing the size of the barcode reader. Furthermore, this solution specifically connects the signal control circuit board 33 and main control circuit board 32 electrically via connectors (preferably pin headers or female headers), making the overall structure of the main unit module 3 more compact and also strengthening its overall structure. In addition, a locking screw 6 is connected between the side wall of the window cover 51 and the side wall of the outer shell 1. By using the locking screw 6 to lock the side of the window cover 51 to the outer shell 1, a certain amount of space can be saved inside the outer shell 1, so as to make more space to accommodate the entire host module 3, which is beneficial to reduce the size of the barcode reader.

[0036] In summary, by adopting this solution, the barcode reader can achieve both high-efficiency barcode reading and a small size, thus meeting the installation requirements of some compact spaces.

[0037] Please refer to the following: Figure 2 , Figure 3 and Figure 5 The inner wall of the outer casing 1 is provided with a first positioning structure 13, and the side of the fixed bracket 31 facing away from the rear cover 2 is provided with a second positioning structure 311. The inner wall of the rear cover 2 is provided with a limiting groove 22. Through the cooperation and insertion of the first positioning structure 13 and the second positioning structure 311, the position of the front end of the main module 3 can be restricted. Through the insertion and pressing of the rear limiting groove 22 and the main module 3, the position of the rear end of the main module 3 can be restricted, so that when the rear cover 2 and the outer casing 1 are assembled together, the main module 3 can be assembled in the outer casing 1 with high precision and stability without shaking. Preferably, the first positioning structure 13 is a positioning post provided on the inner wall of the outer casing 1, and the second positioning structure 311 is a positioning hole that cooperates with the positioning post. Preferably, the rear end of the main control circuit board 32 is designed to be inserted into the limiting groove 22.

[0038] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A barcode reader, characterized in that, Includes the outer casing, back cover, and main unit module; The host module is housed within the housing, and the rear cover is connected to the housing and covers the host module. The host module includes a fixed bracket and a main control circuit board, a signal control circuit board, an image sensor, a lens, and an illumination circuit board, all fixed on the fixed bracket. The illumination circuit board is located at the end of the fixed bracket facing away from the rear cover and is electrically connected to the main control circuit board. The image sensor is located at the end of the fixed bracket facing the rear cover and is electrically connected to the signal control circuit board. The signal control circuit board and the main control circuit board are located on opposite sides of the image sensor and are electrically connected to each other. The front surface of the housing facing away from the rear cover is provided with multiple light-transmitting holes for the illumination circuit board to emit light outwards or for the image sensor to capture external images.

2. The barcode reader as described in claim 1, characterized in that, The signal control circuit board and the main control circuit board are electrically connected by plugging each other in via connectors.

3. The barcode reader as described in claim 1, characterized in that, The inner wall of the outer casing is provided with a first positioning structure, and the side of the fixed bracket facing away from the rear cover is provided with a second positioning structure that cooperates with and connects to the first positioning structure.

4. The barcode reader as described in claim 3, characterized in that, The first positioning structure is a positioning post located on the inner wall of the outer shell, and the second positioning structure is a positioning hole that mates with the positioning post.

5. The barcode reader as described in claim 1, characterized in that, The inner wall of the rear cover is provided with a limiting groove for restricting the position of the rear end of the host module.

6. The barcode reader as described in claim 5, characterized in that, The main control circuit board is inserted into the limiting slot.

7. The barcode reader as described in claim 1, characterized in that, The outer wall of the housing has multiple clearance holes, which are used to avoid indicator lights, push-button switches or buzzers.

8. The barcode reader as described in claim 1, characterized in that, The outer wall of the back cover has a notch that extends into the interior. The barcode reader also includes a cable that is electrically connected to the host module, and the cable passes through the notch.

9. The barcode reader as described in claim 1, characterized in that, The barcode reader also includes a window assembly, which includes a window cover and a light-transmitting window sheet fixed to the window cover. The window cover is fixed to one end of the outer casing facing away from the rear cover, and the window sheet covers a plurality of the light-transmitting holes.

10. The barcode reader as described in claim 9, characterized in that, The side wall of the window cover is connected to the side wall of the outer casing by locking screws.

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