CN213813936U - Infrared sensor optical lens assembly - Google Patents
Infrared sensor optical lens assembly Download PDFInfo
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- CN213813936U CN213813936U CN202023144629.3U CN202023144629U CN213813936U CN 213813936 U CN213813936 U CN 213813936U CN 202023144629 U CN202023144629 U CN 202023144629U CN 213813936 U CN213813936 U CN 213813936U
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- infrared sensor
- apron
- optical lens
- printing opacity
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Abstract
The utility model relates to an infrared sensor optical lens subassembly, a serial communication port, including base and two printing opacity apron, the base is equipped with two alternate segregation's apron trench, the bottom plate of apron trench is equipped with the windowing, two the printing opacity apron is embedded respectively in cover in the trench and cover on the windowing, the base still is equipped with and is located two baffle between the apron trench, the height of baffle is greater than the printing opacity cover plate thickness. The utility model discloses a two detached printing opacity apron corresponds infrared sensor's transmitting terminal and receiving terminal respectively to set up the baffle between two printing opacity apron, keep apart the light path between transmitting terminal and the receiving terminal completely, avoid the light diffuse reflection that the dirt on the printing opacity apron caused, lead to the light between transmitting terminal and the receiving terminal to interfere mutually, arouse infrared sensor's erroneous judgement, thereby lead to the range finding result inaccurate.
Description
Technical Field
The utility model relates to an infrared sensor field, specific theory relates to an infrared sensor optical lens subassembly.
Background
Along with the development of intelligent technology, intelligent products are increasingly popularized in daily life, for example, intelligent robots, intelligent floor sweeping machines and the like, and various intelligent products need to have a distance detection function when walking, so that the intelligent products can feed back road conditions in the advancing direction in real time, avoid collision or fall, and protect intelligent equipment.
The mature distance detection mode in the market is a ToF (Time of Flight) sensing mode or a light intensity detection mode, both of which require an infrared sensor, such as ToF sensing detection, infrared light is emitted through an emitting end of the infrared sensor, and is reflected back by colliding with a measured object, and then the infrared light is received by a receiving end of the infrared sensor, and a calculation unit on the infrared sensor can calculate the distance between the measured object and the sensor by calculating the Time spent by the light from emitting to receiving, so as to obtain the distance between the measured object and the intelligent device main body; for another example, in the light intensity detection method, the distance between the object to be detected and the sensor is calculated by comparing the intensity of the emitted light with the intensity of the received light.
No matter which detection mode, the existing infrared sensor often causes diffuse reflection of light because of dirt or dust on the light path lens, so that part of the emitted infrared light contacts the dirt to be diffusely reflected and directly enters the receiving end instead of being smoothly emitted and reaching the object to be measured, thereby causing misjudgment of the infrared sensor and causing inaccurate measuring result. Especially, the intelligent floor sweeping robot has more dust raised in the working process, and the distance measuring lens is easy to adhere to the dust.
The above problems are worth solving.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, the utility model provides an infrared sensor optical lens subassembly.
The utility model discloses technical scheme as follows:
the utility model provides an infrared sensor optical lens subassembly, its characterized in that includes base and two printing opacity apron, the base is equipped with two looks mutual separation's apron trench, the bottom plate of apron trench is equipped with the windowing, two the printing opacity apron is embedded respectively in the apron trench and cover on the windowing, the base still is equipped with and is located two the baffle between the apron trench, the height of baffle is greater than the thickness of printing opacity apron plate.
According to above-mentioned scheme the utility model discloses, its characterized in that, printing opacity apron is for passing through the polycarbonate material of infrared light.
According to the above scheme the utility model discloses, a serial communication port, the printing opacity apron is the surface and has plated the glass that the membrane was felt to the penetrating infrared.
According to the above scheme the utility model discloses, its characterized in that, the base is the ABS material.
According to above-mentioned scheme the utility model discloses, its characterized in that, the printing opacity apron thickness is not more than 1.5 mm.
Further, the thickness of the light-transmitting cover plate is equal to 0.55mm, and the height of the baffle plate is 1 mm.
According to above-mentioned scheme the utility model discloses, a serial communication port, it is including just right to open the window the emission window of infrared sensor's transmitting terminal and just right the receiving window of infrared sensor's receiving terminal, emission window with the receiving window symmetry sets up the baffle both sides.
According to above-mentioned scheme the utility model discloses, a serial communication port, the bottom plate thickness of apron trench is not more than 1 mm.
According to above-mentioned scheme the utility model discloses, a serial communication port, the bottom plate thickness of apron trench equals 0.5 mm.
According to the above scheme the utility model discloses, a serial communication port, the printing opacity apron with the base integrated into one piece that moulds plastics.
According to the above scheme the utility model discloses, its beneficial effect lies in:
the utility model utilizes the light-transmitting cover plate which transmits infrared light as the lens protection of the infrared sensor, thereby not only allowing the infrared light to pass smoothly, but also preventing the light path lens of the infrared sensor from being polluted, and saving the maintenance cost for users;
further, the utility model discloses a two detached printing opacity apron corresponds infrared sensor's transmitting terminal and receiving terminal respectively to set up the baffle between two printing opacity apron, keep apart the light path between transmitting terminal and the receiving terminal completely, avoid the light diffuse reflection that the dirt on the printing opacity apron caused, lead to the light between transmitting terminal and the receiving terminal to interfere mutually, arouse infrared sensor's erroneous judgement, thereby lead to the range finding result inaccurate.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
fig. 3 is an exploded view of fig. 2 from another perspective.
In the figure, 1, a base; 11. a baffle plate; 12. a cover plate slot position; 13. windowing; 131. an emission window; 132. receiving a window; 14. a sensor slot position;
2. a light-transmitting cover plate;
3. an infrared sensor; 31. a transmitting end; 32. and (4) receiving the data.
Detailed Description
For better understanding of the objects, technical solutions and technical effects of the present invention, the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be noted that the following examples are only for explaining the present invention and are not intended to limit the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution.
As shown in fig. 1 and 2, an infrared sensor optical lens assembly includes a base 1 and two transparent cover plates 2, the base 1 is provided with two mutually separated cover plate slots 12, a bottom plate of the cover plate slot 12 is provided with a window 13, the two transparent cover plates 2 are respectively arranged in the cover plate slots 12 and cover the window 13, the base 1 is further provided with a baffle plate 11 positioned between the two cover plate slots 12, and the height of the baffle plate 11 is greater than the thickness of the transparent cover plate 2.
The transparent cover plate 2 is made of polycarbonate which is transparent to infrared light, so that visible light can be blocked, and the detection result is prevented from being influenced. The thickness of printing opacity apron 2 is not more than 1.5mm for the printing opacity apron has better light transmissivity, thereby improves the degree of accuracy of range finding.
In this embodiment, the thickness of the light-transmissive cover 2 is equal to 0.55mm, and the height of the baffle 11 is 1 mm. Therefore, after the product is assembled, the baffle 11 and the two light-transmitting cover plates 2 have a larger height difference, so that the emitted light can be prevented from being subjected to diffuse reflection between the two light-transmitting cover plates to influence the detection result.
As shown in fig. 3, the window 13 includes an emitting window 131 and a receiving window 132, the bottom of the base 1 is further provided with a sensor slot 14, when the base 1 is fastened on the infrared sensor 3, the emitting window 131 is right opposite to the emitting end 31 of the infrared sensor 3, and the receiving window 132 is right opposite to the receiving end 32 of the infrared sensor 3. The emitting end 31 of the infrared sensor 3 emits infrared rays, which pass through the emitting window 131, reach the object to be measured, and then reflect and pass through the receiving window 132, and enter the receiving end 32 of the infrared sensor 3, and the arithmetic unit on the infrared sensor calculates the time taken for the beam of light to be emitted and received, or calculates the distance between the object to be measured and the sensor by comparing the intensity of the emitted light with the intensity of the received light.
In the present invention, the emission window 131 and the reception window 132 are symmetrically disposed on both sides of the baffle 11. The shape of the transmitting window and the receiving window can be semicircular, semi-elliptical, square or rectangular, and can also be irregular, so as to better allow infrared rays to pass through. In this embodiment, the emitting window 131 and the receiving window 132 are both semicircular, and the straight edge thereof is close to the baffle, and the arc edge thereof is close to both sides of the base.
In addition to the infrared-transmitting polycarbonate material, in other embodiments, the light-transmitting cover plate 2 may also be glass coated with an infrared-transmitting film.
The base 1 is made of ABS material, has the characteristics of strong impact resistance, scratch resistance and stable size, has good moisture resistance and corrosion resistance, and can well provide protection for the infrared sensor 3 so as to prolong the service life of the product.
The thickness of the bottom plate of the cover plate slot 12 is not more than 1mm, that is, the thickness of the window 13 is not more than 1mm, so that the distance from the lower surface of the light-transmitting cover plate 2 to the surface of the infrared sensor 3 is not more than 1mm, and preferably, the thickness of the bottom plate of the cover plate slot 12 is equal to 0.5 mm. The window depth space size is reduced, the diffuse reflection of the emitted light in the window space is prevented, and the detection accuracy is further improved.
The utility model discloses an infrared sensor optical lens subassembly can be separately production, produces base 1 and printing opacity apron 2 respectively promptly, installs two printing opacity apron 2 manual works in the apron trench 12 of base 1 again.
In a preferred scheme, two light-transmitting cover plates 2 of the infrared sensor optical lens assembly and a base 1 are integrally formed in an injection molding mode, the base is formed in an injection molding device, then the two light-transmitting cover plates are formed, and a glue-approaching opening is formed in the middle of the side face of the base, so that the light-transmitting cover plates can be conveniently formed on the base. The process of manual installation printing opacity apron has been saved to this mode, improves the production efficiency and the yields of product.
To sum up, the utility model has the advantages that the two separated transparent cover plates respectively cover the transmitting end and the receiving end of the infrared sensor to protect the lens of the infrared sensor, only the base and the transparent cover plate need to be cleaned or replaced in the maintenance process, the whole infrared sensor does not need to be replaced, and the maintenance cost is saved; additionally, the utility model discloses set up the baffle between two printing opacity apron, keep apart the light path between transmitting terminal and the receiving terminal completely, avoid the dirty diffuse reflection that causes light on the printing opacity apron on transmitting terminal or the receiving terminal to enter into the other end, influenced the set light of the other end, prevent light between transmitting terminal and the receiving terminal promptly and interfere mutually, thereby prevent infrared sensor's misjudgement, and the range finding result that causes is inaccurate.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides an infrared sensor optical lens subassembly, its characterized in that includes base and two printing opacity apron, the base is equipped with two looks mutual separation's apron trench, the bottom plate of apron trench is equipped with the windowing, two the printing opacity apron is embedded respectively in the apron trench and cover on the windowing, the base still is equipped with and is located two the baffle between the apron trench, the height of baffle is greater than the thickness of printing opacity apron plate.
2. The infrared sensor optical lens assembly as recited in claim 1, wherein the light transmissive cover plate is an infrared light transmissive polycarbonate material.
3. The optical lens assembly of claim 1, wherein the light-transmissive cover plate is made of glass coated with an infrared-transmissive film.
4. The infrared sensor optical lens assembly as recited in claim 1, wherein the base is made of ABS material.
5. The infrared sensor optical lens assembly as recited in claim 1, wherein the light transmissive cover plate has a thickness of no more than 1.5 mm.
6. An infrared sensor optical lens assembly as defined in claim 5, wherein said light-transmitting cover plate has a thickness equal to 0.55mm and said baffle plate has a height of 1 mm.
7. The infrared sensor optical lens assembly as recited in claim 1, wherein the window comprises an emission window facing an emission end of the infrared sensor and a reception window facing a reception end of the infrared sensor, and the emission window and the reception window are symmetrically disposed on two sides of the baffle.
8. The infrared sensor optical lens assembly as recited in claim 1, wherein the thickness of the base plate of the cover slot is not greater than 1 mm.
9. The infrared sensor optical lens assembly as recited in claim 1, wherein a thickness of a bottom plate of the cover slot is equal to 0.5 mm.
10. The infrared sensor optical lens assembly as recited in claim 1, wherein the light transmissive cover plate is integrally molded with the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023144629.3U CN213813936U (en) | 2020-12-23 | 2020-12-23 | Infrared sensor optical lens assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023144629.3U CN213813936U (en) | 2020-12-23 | 2020-12-23 | Infrared sensor optical lens assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213813936U true CN213813936U (en) | 2021-07-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023144629.3U Active CN213813936U (en) | 2020-12-23 | 2020-12-23 | Infrared sensor optical lens assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213813936U (en) |
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2020
- 2020-12-23 CN CN202023144629.3U patent/CN213813936U/en active Active
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