Optical identity recognition module and coffee machine thereof

Abstract

According to the technical scheme, the optical identity recognition module and the coffee machine are characterized in that the optical identity recognition module comprises a shell, a recognition module is arranged in the shell, the side, facing the light path of the recognition module, of the shell is transparent and forms a recognition window, the recognition window is covered with an anti-fog coating, and a light supplementing lamp is arranged in the shell. According to the utility model, the definition of the identification window is ensured, the problem of water mist caused by alternate cooling and heating is solved, the stability of the identification module under different ambient light conditions is enhanced, and the use is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to camera information recognition technical field, more specifically, it relates to an optical identity recognition module and coffee machine. BACKGROUND

[0002] The optical identity recognition module is widely used in coffee machine, is used for identifying the image on coffee capsule, obtains the kind, formula etc. Information of capsule, to realize automatic brewing function. However, since the coffee machine has heating function inside, the cold and hot alternating environment can easily cause the identification window of the recognition module to form water mist, thereby affecting the definition of image and the accuracy of identification. UTILITARY MODEL CONTENT

[0003] In order to solve the above problems, the utility model provides the following technical scheme:

[0004] An optical identity recognition module, comprising a shell, an identification module is arranged in the shell, the shell is transparent on the side of the identification module light path direction and forms an identification window, a fog-proof coating is covered on the identification window, a light supplementing lamp is arranged in the shell.

[0005] The utility model is further provided with: the inner wall of the shell is provided with a grid surface for reducing reflected light.

[0006] The utility model is further provided with: the fog-proof coating adopts single-component heating curing super-hydrophilic fog-proof nano coating.

[0007] The utility model is further provided with: the identification module comprises a PCB board, a lens barrel, a lens and a light barrier are sequentially arranged on the side of the PCB board and towards the identification window.

[0008] The utility model is further provided with: a plurality of positioning holes are formed on the PCB board, the side of the lens barrel towards the PCB board is provided with a positioning column matched with the positioning hole.

[0009] The utility model is further provided with: the light supplementing lamp adopts a patch infrared LED, and the light supplementing lamp is arranged on the side of the PCB board towards the identification window.

[0010] The utility model is further provided with: a step surface is arranged in the shell, the side of the PCB board towards the identification window is attached with the step surface, and the bottom of the PCB board is sealed by arranging a glue filling layer.

[0011] The utility model is further provided with: the glue filling layer is formed by UV glue filling.

[0012] The utility model is further provided with: a connecting line is arranged on the identification module, and the connecting line extends out of the shell and is connected with a host computer.

[0013] In addition, this utility model also proposes a coffee machine, including the aforementioned optical identity recognition module.

[0014] Compared with the prior art, the present invention has at least the following advantages:

[0015] 1. By applying an anti-fog coating to the recognition window, water vapor formation is effectively prevented, ensuring the clarity of the recognition window. Furthermore, the addition of a supplementary light provides a stable light source in low-light conditions, further improving image recognition performance. This not only solves the water vapor problem caused by alternating hot and cold temperatures but also enhances the stability of the recognition module under different ambient light conditions, thereby improving the user experience.

[0016] 2. A grid pattern is set on the inner wall of the housing to reduce reflected light from the inner wall, eliminate the influence of light spots on lens recognition, and improve the lens recognition yield.

[0017] 3. The bottom of the PCB board is filled with glue, which not only fixes the PCB board but also seals the bottom of the housing, providing good waterproof performance. UV glue is selected because it cures quickly, reducing the curing and pressure holding time, improving production efficiency, and has good light transmittance after curing, making it easy to check the internal sealing. Attached Figure Description

[0018] Figure 1 This is the first perspective view of the first embodiment;

[0019] Figure 2 This is an exploded view of the first embodiment;

[0020] Figure 3 This is an exploded view of the identification module;

[0021] Figure 4 This is a bottom view of the casing;

[0022] Figure 5 This is the second perspective view of the first embodiment.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Housing; 2. Identification window; 3. Anti-fog coating; 4. Fill light; 5. PCB board; 6. Lens barrel; 7. Lens; 8. Light-blocking ring; 9. Chip; 10. Positioning hole; 11. Positioning post; 12. Mesh surface; 13. Encapsulation layer; 14. Connecting wire; 15. Stepped surface. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] First embodiment:

[0028] An optical identity recognition module, such as Figure 1 and Figure 2 As shown, the device includes a housing 1, within which a recognition module is housed. The housing 1 is transparent on the side facing the light path of the recognition module, forming a recognition window 2. The recognition module identifies external objects through the recognition window 2, and the chip 9 inside the recognition module automatically recognizes the image content and provides feedback. The recognition window 2 is covered with an anti-fog coating 3, which effectively prevents the formation of water vapor, ensuring the clarity of the recognition window 2 and enabling it to function properly in the coffee machine.

[0029] In this embodiment, the anti-fog coating 3 specifically adopts a single-component heat-curing superhydrophilic anti-fog nano-coating. The nanotechnology makes the surface of the coating superhydrophilic after curing, so that water molecules on the surface of the recognition window 2 cannot form water droplets, thus preventing fogging and maintaining the clarity of the recognition window 2. This solves the problem of water fog caused by alternating hot and cold temperatures when the recognition module is used in a coffee machine.

[0030] like Figure 3 and Figure 4 As shown, a supplementary light 4 is installed inside the housing 1 to provide supplementary lighting for the shooting area of ​​the recognition module inside the housing 1. This provides a stable light source in low-light conditions, ensuring the stable operation of the recognition module. Furthermore, a grid surface 12 is provided on the inner wall of the housing 1 to reduce reflected light. The specific position of the grid surface 12 is adjusted according to the position of the supplementary light 4, and it is positioned on the direct surface of the supplementary light 4. The shape of the grid surface 12 reduces the light reflected from the supplementary light 4 onto the inner wall, eliminating the influence of light spots on lens recognition, thereby improving the recognition yield of the recognition module.

[0031] In this embodiment, the recognition module specifically includes a PCB board 5. On the PCB board 5, facing the recognition window 2, a lens barrel 6, a lens 7, and a light-blocking ring 8 are arranged sequentially. The lens 7 is placed inside the lens barrel 6, the light-blocking ring is pressed on the lens 7, and then the light-blocking ring is fixed to the lens barrel 6 by applying adhesive.

[0032] The lens barrel 6 is fixed to the PCB board 5 by dispensing adhesive, and the PCB board 5 has several positioning holes 10. The side of the lens barrel 6 facing the PCB board has a positioning post 11 that cooperates with the positioning hole 10. The positioning post 11 passes into the positioning hole 10, which makes it easier to position the lens barrel 6 and makes the lens barrel 6 less prone to displacement, making the connection more stable.

[0033] In this embodiment, the PCB board 5 has three positioning holes 10 arranged in a triangular shape, which improves stability.

[0034] The lens barrel 6 is located on the chip 9 (camera) on the PCB board 5. After assembly, the chip 9, lens barrel 6, lens 7, and aperture 8 are on the same axis. Besides serving as a fixing bracket, the lens barrel 6 is made of black, opaque material with only a central opening to allow light to enter the chip 9. The aperture 8 has a central opening that allows light to enter the lens 7; the size of the opening can be adjusted as needed, thus changing the lens aperture and affecting image quality.

[0035] In this embodiment, the fill light 4 is a surface-mount infrared LED that emits infrared light to fill the area captured by the camera. The fill light 4 is set on the side of the PCB board 5 facing the recognition window 2, and the fill light 4 is controlled by the PCB board 5.

[0036] like Figure 4 and Figure 5 As shown, the housing 1 adopts a one-piece molding design, reducing the gap between assembled parts and improving waterproof performance. The bottom of the housing 1 is open, and a stepped surface 15 is provided inside the housing 1 near the bottom. The side of the PCB board 5 facing the recognition window 2 is attached to the stepped surface 15. The bottom of the PCB board 5 is sealed by a potting layer 13. The potting layer 13 covers and fills the bottom of the PCB board 5, fixing the PCB board 5 and sealing the bottom of the housing 1 at the same time.

[0037] In this embodiment, the potting layer 13 is formed using UV adhesive. UV adhesive cures quickly, which can reduce the curing and pressure holding time and improve production efficiency. Furthermore, the UV adhesive is colorless and transparent, and its light transmittance is greater than 90% after curing, allowing the viewer to see the assembled state of the PCB board 5 and the presence of air bubbles within the adhesive, thus reducing the possibility of poor sealing.

[0038] A connecting line 14 is provided on the PCB board 5 of the recognition module. The connecting line 14 extends out of the housing 1 and connects to the host. In this embodiment, the connecting line 14 passes through the potting layer 13 and connects to the host of the coffee machine, so that the chip 9 can automatically recognize the image content and feed it back to the host of the coffee machine.

[0039] Second embodiment:

[0040] A coffee machine (not shown) includes the optical identity recognition module described in the first embodiment.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An optical identity recognition module, characterized in that: The device includes a housing, within which a recognition module is installed. The housing is transparent on the side facing the light path of the recognition module, forming a recognition window. The recognition window is covered with an anti-fog coating, and a supplementary light is installed inside the housing.

2. The optical identity recognition module according to claim 1, characterized in that: The inner wall of the housing is provided with a grid surface for retrieving reflected light.

3. The optical identity recognition module according to claim 1, characterized in that: The anti-fog coating is a single-component, heat-cured, super-hydrophilic anti-fog nano-coating.

4. The optical identity recognition module according to claim 1, characterized in that: The recognition module includes a PCB board, on which a lens barrel, a lens, and a light-blocking ring are arranged sequentially on the side facing the recognition window.

5. An optical identity recognition module according to claim 4, characterized in that: The PCB board has several positioning holes, and the lens barrel has a positioning post protruding from the side facing the PCB board that cooperates with the positioning holes.

6. The optical identity recognition module according to claim 4, characterized in that: The supplementary light uses a surface-mount infrared LED and is positioned on the side of the PCB board facing the recognition window.

7. The optical identity recognition module according to claim 4, characterized in that: The housing has a stepped surface, and the side of the PCB board facing the recognition window is attached to the stepped surface. The bottom of the PCB board is sealed by a potting layer.

8. An optical identity recognition module according to claim 7, characterized in that: The potting layer is formed using UV adhesive.

9. The optical identity recognition module according to claim 1, characterized in that: The identification module is equipped with a connecting line that extends out of the housing and connects to the host.

10. A coffee machine, characterized in that: Includes the optical identity recognition module described in any one of claims 1 to 9.

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