Code reader and code reading device
By detachably connecting the light source component of the barcode reader to the main unit casing, the impact of lighting environment on the accuracy of the barcode reader is solved, achieving adaptability and portability in different brightness environments and expanding application scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN QIANHAI EVOC ASIA-PACIFIC ELECTRONIC EQUIP TECH CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-29
AI Technical Summary
Existing barcode readers, except in environments with moderate lighting, will have their accuracy affected by excessively strong or weak lighting. Furthermore, the light source component is fixed inside the casing, making it unsuitable for different sizes and limiting its application scenarios.
The light source component is located on the outside of the main housing and is detachably connected to the main housing, making it easy to replace or disassemble, adapting to different brightness environments, and expanding application scenarios.
Installing the light source component in low-brightness environments ensures accuracy, while removing the light source component in high-brightness environments avoids affecting accuracy, reduces size, facilitates portability, and expands application scenarios.
Smart Images
Figure CN224304169U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of identification code recognition technology, and in particular to a code reader and a code reading device. Background Technology
[0002] Barcode readers are widely used in the automated collection and management of information on production lines / assembly lines in large and medium-sized manufacturing enterprises. They improve the level of manufacturing automation, reduce manual operation, and realize a mixed-flow, automated, and highly accurate production information collection mode. This reduces misreading and omissions caused by human operation, thereby ensuring the efficient use of existing MES (Manufacturing Execution System) and other systems in production line / assembly line information management.
[0003] However, existing barcode readers are only suitable for environments with moderate lighting. Too strong or too weak lighting will affect the accuracy of the barcode reader. In addition, the light source components are all fixed inside the barcode reader housing, which makes the barcode reader unable to adapt to light source components of different sizes, thus limiting the application scenarios of the barcode reader. Utility Model Content
[0004] To address the aforementioned issues, the barcode reader and barcode reading device provided by this invention, by placing the light source component on the outside of the main housing and detachably connecting it to the main housing, facilitates the disassembly or replacement of the light source component, thereby expanding the application scenarios of the barcode reader.
[0005] In a first aspect, this utility model provides a barcode reader, which includes: a main housing, a barcode reading module, and a light source component;
[0006] The code reading module is fixedly installed inside the main unit housing. Connecting parts are provided at opposite ends of the main unit housing. The light source component is located on the outside of the main unit housing and is detachably connected to the main unit housing through the connecting parts.
[0007] Optionally, the light source components include: a light source housing, a front cover, a lamp panel, and a rear cover.
[0008] The front cover and rear cover of the light source are located on the front and rear sides of the light source housing, respectively, and together with the light source housing, they form a closed light source space.
[0009] The lamp panel is located within the light source space and emits light forward through the front cover of the light source. The light source housing is detachably connected to the main housing via a connecting part.
[0010] Optionally, the light source component may also include: a light source lens;
[0011] The light source lens is located in the light source space and in front of the lamp panel. The light source lens is used to uniformly emit the light emitted by the lamp panel from the front cover of the light source.
[0012] Optionally, the code reading module includes: a camera module board, a power supply board, and a core board;
[0013] The camera module board, power board, and core board are arranged sequentially from front to back inside the main unit housing;
[0014] The power board is electrically connected to the camera module board and the core board respectively, and is used to supply power to the camera module board and the core board.
[0015] Optionally, the code reading module also includes: a dustproof glass and a dustproof pad;
[0016] The dustproof glass is located on the front side of the dustproof pad and is connected to the main body housing. The dustproof pad is located on the front side of the camera module board, and the dustproof glass is connected to the camera module board through the dustproof pad.
[0017] Optionally, the main housing includes: a main housing body, a front cover, and a rear cover;
[0018] The front cover and the rear cover are located on the front and rear sides of the main body of the casing, respectively, and together with the main body of the casing, they form a closed code reading space.
[0019] The front cover has a sampling through hole, the code reading module is located in the code reading space and reads codes through the sampling through hole, and the main body of the housing is detachably connected to the light source housing through the connecting part.
[0020] Optionally, a heat dissipation fin is formed on the rear surface of the rear cover, and a heat-conducting block is fixedly provided on the front surface of the rear cover. The rear cover is connected to the code reading module through the heat-conducting block.
[0021] Optionally, the light source component is elongated, and there are two light source components, which are symmetrically located on opposite sides of the main unit housing.
[0022] In a second aspect, the present invention provides a code reading device, which includes: a transmission device, a support, and a code reader as described in any of the first aspects;
[0023] The barcode reader is fixed on the bracket and is used to scan the products on the conveyor.
[0024] Optionally, the barcode reader also includes an encoding wheel, which is used to detect the distance the product is moved by the conveyor, and the encoding wheel is communicatively connected to the barcode reader.
[0025] The barcode reader and barcode reading device provided in this embodiment of the utility model, by placing the light source component on the outside of the main housing and detachably connecting it to the main housing, facilitate the disassembly or replacement of the light source component. When the barcode reader is in a low-brightness environment, the light source component can be installed on the outside of the main housing to ensure the accuracy of the barcode reader. When the barcode reader is in a bright environment that meets the shooting requirements, the light source component can be removed from the main housing to avoid excessive brightness affecting the accuracy of the barcode reader. It can also reduce the size of the barcode reader, making it more portable and easier to use, thus expanding the application scenarios of the barcode reader. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a schematic structural diagram of a barcode reader according to an embodiment of this application;
[0028] Figure 2 This is a schematic exploded view of a barcode reader according to an embodiment of this application;
[0029] Figure 3 This is a schematic exploded view of the housing body and the code reading module according to an embodiment of this application;
[0030] Figure 4 This is a schematic exploded view of a light source component according to an embodiment of this application;
[0031] Figure 5 This is a schematic structural diagram of a code reading device according to an embodiment of this application.
[0032] Figure label:
[0033] 1. Main unit housing; 11. Main body of housing; 111. Connecting part; 12. Front cover plate; 121. Sampling through hole; 13. Rear cover plate; 131. Heat-conducting block; 2. Code reading module; 21. Camera module board; 22. Power board; 23. Core board; 24. Interface board; 25. Dustproof glass; 26. Dustproof pad; 3. Light source components; 31. Light source housing; 32. Light source lens; 33. Lamp board; 331. First positioning hole; 332. Second positioning hole; 34. Light source rear cover; 341. Heat-conducting protrusion; 35. Light source front cover; 351. Front frame; 352. Viewing window plate; 4. Lens module; 51. Conveying device; 511. Conveyor belt; 512. Line; 52. Bracket; 53. Encoding wheel. Detailed Implementation
[0034] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0036] Spatial relation terms such as "below," "under," "below," "below," "above," and "above" are used here to describe the relationship between one element or feature shown in the figure and other elements or features. Similarly, "directly above" can be used here to describe an element or feature shown in the figure that coincides in a vertical straight line direction, where it may be partially or completely overlapped, depending on the actual situation or the content of the illustration. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below," "below," or "below" of other elements will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.
[0037] It should be noted that when an element is referred to as "fixedly connected" to another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is referred to as being "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0038] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.
[0039] Firstly, one embodiment of this utility model provides a code reader, combined with... Figure 1 , Figure 2 and Figure 3 The barcode reader includes: a main housing 1, a barcode reading module 2, and a light source component 3.
[0040] The code reading module 2 is fixedly installed inside the main housing 1. The main housing 1 has connecting parts 111 at opposite ends. The light source component 3 is located on the outside of the main housing 1 and is detachably connected to the main housing 1 through the connecting parts 111.
[0041] The light source component 3 and the main housing 1 are detachably connected via screws, magnets, or snap-fit components, among other means. In this embodiment, the light source component 3 is detachably connected to the main housing 1 via screws.
[0042] The barcode reader provided in this embodiment, by placing the light source component 3 on the outside of the main housing 1 and detachably connecting it to the main housing 1, facilitates the disassembly or replacement of the light source component 3. When the barcode reader is in a low-brightness environment, the light source component 3 can be installed on one or two connecting parts 111 of the main housing 1 to ensure the accuracy of the barcode reader. When the barcode reader is in a bright environment that meets the shooting requirements, the light source component 3 can be removed from the main housing 1 to avoid excessive brightness affecting the accuracy of the barcode reader. It can also reduce the size of the barcode reader, making it easier to carry and use, and expanding the application scenarios of the barcode reader.
[0043] Furthermore, the main unit housing 1 includes: a main housing body 11, a front cover 12, and a rear cover 13. The front cover 12 and the rear cover 13 are located on the front and rear sides of the main housing body 11, respectively, and are joined to the main housing body 11 with screws to form a closed code reading space.
[0044] A sampling through hole 121 is provided on the front cover plate 12. The code reading module 2 is located in the code reading space and reads codes through the sampling through hole 121. The connecting part 111 on the main body of the housing 11 is detachably connected to the light source component 3 by screws.
[0045] Furthermore, the reader also includes a lens module 4, which is located on the front side of the housing body 11 and detachably connected to the housing body 11. In this embodiment, the lens module 4 is threadedly connected to the front cover plate 12. When the lens module 4 is installed on the front cover plate, the optical axis of the lens module 4 coincides with the sampling through hole 121 and the sensor surface on the camera module plate 21 in the front-back direction.
[0046] The code reading module 2 includes a camera module board 21, a power supply board 22, and a core board 23. The camera module board 21, power supply board 22, and core board 23 are arranged sequentially from front to back within the code reading space and are fixedly connected to the main housing 1. The power supply board 22 is electrically connected to both the camera module board 21 and the core board 23, and is used to supply power to both. The core board 23 is used to decode the images acquired by the camera module board 21; the specific decoding process is not specifically limited in this embodiment.
[0047] The camera module board 21 can be either an area scan camera module board or a line scan camera module board. The image captured by the line scan camera module board 21 is a linear image, while the image captured by the area scan camera module board is an area image. It can be understood that an area image can be composed of multiple linear images stitched together.
[0048] In this embodiment, the camera module board 21 is a linear camera module board and is fixedly connected to the main body 11 of the housing by screws; the sampling through hole 121 is a long strip shape that matches the camera module board 21; the light source component 3 is a long strip shape, and there are two light source components 3, which are symmetrically located on opposite sides of the main body housing 1.
[0049] Furthermore, the barcode reader module 2 also includes an interface board 24, a dustproof glass 25, and a dustproof pad 26. The dustproof glass 25 is located on the front side of the dustproof pad 26 and is connected to the front cover plate 12, and is used to seal the sampling through hole 121. The dustproof pad 26 is located on the front side of the camera module board 21, and the dustproof glass 25 is connected to the camera module board 21 through the dustproof pad 26. In this embodiment, the dustproof pad 26 is a hollow silicone pad. When the camera module board 21 is fixedly connected to the front cover plate 12 by screws and five single-headed hexagonal copper pillars, the dustproof pad 26 will be pressed between the dustproof glass 25 and the sensor surface on the camera module board 21. By setting the dustproof glass 25 and the dustproof pad 26, it can be ensured that dust cannot enter the camera module board 21 through the sampling through hole 121, thus affecting the imaging and detection results of the barcode reader.
[0050] The interface board 24 is located between the camera module board 21 and the core board 23. The interface board 24 is fixedly connected to the main body 11 of the housing by screws and single-headed hexagonal copper posts. The core board 23 is electrically connected to the camera module board 21 and the power board 22 through the interface on the interface board 24. By setting up the interface board 24, the wiring in the code reading space is eliminated to achieve electrical connection between the core board 23 and the camera module board 21, thus facilitating the installation of the core board 23 and the camera module board 21 in the confined code reading space.
[0051] Furthermore, heat dissipation fins are formed on the rear surface of the rear cover plate 13, and a heat-conducting block 131 is fixedly disposed on the front surface of the rear cover plate 13. The rear cover plate 13 is connected to the power consumption device (processor) on the core board 23 through the heat-conducting block 131. By setting the heat dissipation fins, the internal temperature of the main body 11 can be effectively reduced, and by setting the heat-conducting block 131, the power consumption device on the core board 23 can be specifically cooled, ensuring the stability of the code reading module 2.
[0052] Combination Figure 4 The light source component 3 includes: a light source housing 31, a light source front cover 35, a light source lens 32, a lamp panel 33, and a light source rear cover 34. The light source front cover 35 and the light source rear cover 34 are located on the front and rear sides of the light source housing 31, respectively, and are screwed together to form a closed light source space. The lamp panel 33 is located within the light source space and emits light forward through the light source front cover 35. The light source housing 31 is detachably connected to the housing body 11 via screws. The light source lens 32 is located within the light source space and in front of the lamp panel 33. The light source lens 32 is used to uniformly emit the light emitted by the lamp panel 33 from the light source front cover 35. This embodiment does not limit the specific structure of the light source lens 32.
[0053] In this embodiment, there are two lamp boards 33, which are arranged side by side; the front surface of the light source back cover 34 has a heat-conducting protrusion 341 located in the light source space, and the rear surface of the light source back cover 34 has a heat dissipation fin; the LEDs on the lamp boards 33 are arranged on the front surface of the lamp boards 33, and each lamp board 33 has two sets of positioning holes, namely a first positioning hole 331 and a second positioning hole 332. There are two first positioning holes 331 on each lamp board 33 and six second positioning holes 332 on each lamp board 33.
[0054] The lamp panel 33 is placed on the back cover 34 of the light source and positioned by the positioning pins on the back cover 34 and the first positioning hole 331 on the lamp panel 33. Simultaneously, the light source lens 32 is installed in front of the lamp panel 33, and its positioning pins are positioned by the second positioning hole 332 on the lamp panel 33. The lamp panel 33 and the light source lens 32 are then simultaneously fixed to the back cover 34 of the light source using screws. The lamp panel 33 is in contact with the heat-conducting protrusion 341.
[0055] The front cover 35 of the light source includes a front frame 351 and a viewing window panel 352. The viewing window panel 352 is fixedly connected to the front frame 351 by adhesive backing. Except for the parts corresponding to the LED lights, the viewing window panel 352 is silkscreened to make the light source component 3 more aesthetically pleasing.
[0056] The barcode reader provided in this embodiment has a simple structure, is easy to process and assemble, and places the light source component 3 on the outside of the main housing 1 and detachably connects it to the main housing 1, thus achieving multi-scene coverage.
[0057] Secondly, another embodiment of this utility model provides a code reading device, combined with Figure 5 The barcode reading device includes: a conveying device 51, a bracket 52, and a barcode reader as described in any of the first aspects. The barcode reader is fixed on the bracket 52 and is used to scan the products on the conveying device 51.
[0058] In this embodiment, the bracket 52 spans across the conveying device 51 from above, and the barcode reader is fixed above the conveying device 51 with its front end facing downward.
[0059] Furthermore, the conveying device 51 includes a conveyor belt 511 and a production line body 512. The conveyor belt 511 is used to move the products above the production line body 512. Thus, when the conveying device 51 brings the products to a position below the barcode reader, the barcode reader obtains product information by reading the barcode on the product.
[0060] In a further optional embodiment of this invention, the barcode reader further includes an encoding wheel 53. The encoding wheel 53 is used to detect the distance the product is moved by the conveyor 51. The encoding wheel 53 is communicatively connected to the barcode reader via a wire. The encoding wheel 53 can be fixed to the bracket 52 or to the conveyor belt 512. In this embodiment, the main body of the encoding wheel 53 is fixed to the conveyor belt 512, and the rollable wheel body of the encoding wheel 53 is in contact with the upper surface of the conveyor belt 511. This embodiment does not specifically limit the specific structure and working principle of the encoding wheel 53.
[0061] Specifically, during the movement of the conveyor belt 511, the encoder wheel 53 is driven to roll. The encoder wheel 53 generates a trigger signal by rolling, and transmits the trigger signal to the code reader in real time through the wire to trigger the code reader to take a picture and read the code.
[0062] The speed at which the conveyor belt 511 moves the product is matched to the frequency of the barcode reader's photos. This allows the barcode reader to continuously take photos and stitch them together into a single complete image, fully displaying the product's facing surface. The core board 23 then reads the product's code by recognizing the stitched image, giving the barcode reader an extra-large field of view. The encoding wheel 53 enables the core board 23 to recognize the completed reading area. This allows the barcode reader to read both barcodes and QR codes. When placing a product on the conveyor belt 511, simply placing the surface to be read upwards completes the reading. Even if the barcode or QR code is tilted at the sampling angle of the camera module on the camera module board 21, it will not affect the core board 23's recognition of the barcode or QR code.
[0063] The barcode reading device provided in this embodiment has a high degree of automation, reducing abnormal problems such as misreading and missed reading caused by manual operation; and it can realize the recognition of multiple barcode movement within its field of view, improving efficiency.
[0064] It should be noted that the functions of each functional device in this utility model can be implemented by existing technology, and this application does not involve any improvement to the functional program code of each functional device.
[0065] In the description of this specification, the references to terms such as "some embodiments," "other embodiments," "ideal embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example that are included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.
[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A barcode reader, characterized in that, The barcode reader includes: a main housing, a barcode reading module, and a light source component; The code reading module is fixedly installed inside the main unit housing. The main unit housing has connecting parts at opposite ends. The light source component is located on the outside of the main unit housing and is detachably connected to the main unit housing through the connecting parts.
2. The barcode reader according to claim 1, characterized in that, The light source component includes: a light source housing, a front cover, a lamp panel, and a rear cover. The front cover and the rear cover of the light source are located on the front and rear sides of the light source housing, respectively, and together with the light source housing, they form a closed light source space. The lamp panel is located within the light source space and emits light forward through the front cover of the light source. The light source housing is detachably connected to the main housing through the connecting part.
3. The barcode reader according to claim 2, characterized in that, The light source component further includes: a light source lens; The light source lens is located in the light source space and in front of the lamp panel. The light source lens is used to uniformly emit the light emitted by the lamp panel from the front cover of the light source.
4. The barcode reader according to claim 1, characterized in that, The code reading module includes: a camera module board, a power supply board, and a core board; The camera module board, the power board, and the core board are arranged sequentially from front to back inside the main unit housing; The power board is electrically connected to the camera module board and the core board respectively, and is used to supply power to the camera module board and the core board.
5. The barcode reader according to claim 4, characterized in that, The code reading module also includes: dustproof glass and dustproof pad; The dustproof glass is located on the front side of the dustproof pad and is connected to the main housing. The dustproof pad is located on the front side of the camera module board, and the dustproof glass is connected to the camera module board through the dustproof pad.
6. The barcode reader according to claim 2, characterized in that, The main housing includes: a main housing body, a front cover plate, and a rear cover plate; The front cover and the rear cover are located on the front and rear sides of the main body of the housing, respectively, and together with the main body of the housing, they form a closed code reading space. The front cover plate has a sampling through hole, the code reading module is located in the code reading space and reads codes through the sampling through hole, and the main body of the housing is detachably connected to the light source housing through the connecting part.
7. The barcode reader according to claim 6, characterized in that, The rear surface of the rear cover is provided with heat dissipation fins, and a heat-conducting block is fixedly provided on the front surface of the rear cover. The rear cover is connected to the code reading module through the heat-conducting block.
8. The barcode reader according to claim 1, characterized in that, The light source component is elongated, and there are two light source components, which are symmetrically located on opposite sides of the main unit casing.
9. A code reading device, characterized in that, The code reading device includes: a transmission device, a support frame, and a code reader as described in any one of claims 1 to 8; The barcode reader is fixed on the bracket and is used to scan the products on the conveying device.
10. The code reading device according to claim 9, characterized in that, The barcode reading device further includes an encoding wheel, which is used to detect the distance the product is moved by the conveying device, and the encoding wheel is communicatively connected to the barcode reader.