CN219798364U - Groove-type photoelectric sensor and light guide shell thereof - Google Patents
Groove-type photoelectric sensor and light guide shell thereof Download PDFInfo
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- CN219798364U CN219798364U CN202321233356.0U CN202321233356U CN219798364U CN 219798364 U CN219798364 U CN 219798364U CN 202321233356 U CN202321233356 U CN 202321233356U CN 219798364 U CN219798364 U CN 219798364U
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- 238000001514 detection method Methods 0.000 claims abstract description 25
- 239000003973 paint Substances 0.000 claims description 10
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to a groove-type photoelectric sensor, which comprises a shell, wherein the shell is provided with a first cover part and a second cover part which are arranged at intervals, a detection groove is formed between the first cover part and the second cover part, the first cover part and the second cover part are respectively provided with a light through hole, and the light through holes between the first cover part and the second cover part are communicated; the transmitting device is arranged in the inner cavity of the first cover part; a receiving device disposed in the interior cavity of the second cover portion; the light guide shell is provided with a transmitting part and a receiving part, the transmitting part is connected with the transmitting device, a shading layer is arranged at the position, close to the bottom of the detection groove, of the transmitting part, and the receiving part is connected with the receiving device. The utility model has the effect that the sensor can respond when the detected object is inserted into the shallower position of the detection groove.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to a groove-type photoelectric sensor and a light guide shell thereof.
Background
Under the irradiation of light, electrons in certain substances are excited by photons to form photoelectrons, namely photo-electricity generation, which is called a photoelectric effect, and a photoelectric sensor can be manufactured by utilizing the photoelectric effect principle.
In the related art, like the publication number is CN207019702U, the name is a groove type photoelectric sensor, including detecting main part, cable conductor and signal amplification device, detect main part and cable conductor electric connection, signal amplification device sets up on the cable conductor, detects the main part and includes shell, printing opacity support, sensor circuit subassembly and apron, and sensor circuit subassembly includes emitter and receiver.
The upper surface of shell has two vertical first cover portions and second cover portions, and first cover portions and second cover portions are set up side by side along the horizontal direction, form the detection groove between the two, all are equipped with the cavity in the first cover portion and the second cover portion, are equipped with an opening on the shell, and specifically, this opening is located the bottom surface and the leading flank of shell to with the cavity intercommunication in the shell. The transmitting device and the receiving device are respectively arranged in the cavities of the first cover part and the second cover part at two sides, the detection signal transmitted by the transmitting device can be received by the receiving device after passing through the detection gap, the side surface of the first cover part is provided with a first through hole, the side surface of the second cover part is provided with a second through hole, the first through hole and the second through hole are oppositely arranged, and a light-transmitting bracket is further arranged between the housing and the sensor circuit component.
For the related art, the emitting device emits the point light source, and the receiving device receives the point light source in a planar manner, so that the detected object needs to enter a relatively deep position of the detection groove to block the light transmitted to the receiving device, and the defect that the sensor cannot adapt to the detected object with a relatively shallow insertion position is caused.
Disclosure of Invention
In order to enable the sensor to respond when the detected object is inserted into the shallow position of the detection groove, the utility model provides a groove type photoelectric sensor and a light guide shell thereof.
In a first aspect, the present utility model provides a groove-type photoelectric sensor, which adopts the following technical scheme:
a trench type photosensor comprising:
a housing having a first cover portion and a second cover portion disposed at an interval, wherein a detection groove is formed between the first cover portion and the second cover portion, light passing holes are formed in the first cover portion and the second cover portion, and the light passing holes between the first cover portion and the second cover portion are communicated;
the transmitting device is arranged in the inner cavity of the first cover part;
a receiving device disposed in an interior cavity of the second cover portion;
the light guide shell is provided with a transmitting part and a receiving part, the transmitting part is connected with the transmitting device, a shading layer is arranged at the position, close to the bottom of the detection groove, of the transmitting part, and the receiving part is connected with the receiving device.
By adopting the technical scheme, due to the arrangement of the shading layer, when the light of the transmitting device penetrating through the transmitting part is transmitted to the receiving device, the covered range can be reduced, so that the sensor can also respond when the depth of the inserted position of the detected object is shallower, thereby being beneficial to improving the detection precision of the sensor.
Preferably, the light shielding layer is disposed on a side of the emission part away from the light passing hole.
Through adopting above-mentioned technical scheme, compare in the mode that the shading layer set up on the transmitting portion is close to light hole one side, this kind of design mode, because the shading layer sets up on the transmitting portion does not reveal on one side outward, so can not cause the influence to the appearance of sensor to other components in the sensor can reduce structural change.
Preferably, the light shielding layer is a black paint layer sprayed on the light guide shell.
By adopting the technical scheme, light close to the bottom of the detection groove can be shielded, and the structural form of the whole light guide shell cannot be greatly changed, so that the structure of the sensor is kept simple.
Preferably, the light shielding layer is a black adhesive tape layer adhered on the light guiding shell.
By adopting the technical scheme, light close to the bottom of the detection groove can be shielded, and the light shielding layer is of a structure which can be detachably arranged, so that the light guide shell and the light shielding layer can be used as two independent elements, and the manufacturing cost of the sensor cannot be excessively increased.
Preferably, the light shielding layer is a mirror layer disposed on the light guiding housing.
Through adopting above-mentioned technical scheme, compare in the shading layer and absorb light through black attribute and produce the mode that shelters from, this kind of design mode can realize sheltering from the light that is close to detection groove tank bottom department, also makes the shading layer be difficult for overheated to can promote the life of sensor.
Preferably, the emitting part is provided with a mounting groove, and the mounting groove is used for accommodating the shading layer.
Through adopting above-mentioned technical scheme, because of the setting of mounting groove, on the one hand, can play the instruction position to the setting position of shading layer, on the other hand, when paint does not solidify, the mounting groove can restrict the flow of paint to prevent that paint from flowing to other positions and influencing the normal use of sensor.
Preferably, the surface of the side of the emitting part and the surface of the side of the receiving part, which are close to each other, are respectively provided with a connection lug, the connection lugs are embedded in the light-transmitting holes, and the connecting line between the connection lugs and the light shielding layer is parallel to the connecting line between the emitting device and the receiving device.
Through adopting above-mentioned technical scheme, can be with the help of the cooperation between connecting lug and the light hole, install the shading layer on the position just opposite with the light hole more conveniently and more accurately to help promoting the assembly precision between light guide shell and the shell.
Preferably, the light guiding housing further has a serial connection portion, and two ends of the serial connection portion are integrally connected with the emitting portion and the receiving portion, respectively.
By adopting the technical scheme, due to the arrangement of the serial connection part, the transmitting part and the receiving part can be connected with the shell as a whole, thereby being beneficial to reducing the assembly complexity of elements in the sensor.
In a second aspect, the present utility model provides a light guiding housing of a slot type photoelectric sensor, which adopts the following technical scheme:
the light guide shell of the groove-type photoelectric sensor is provided with a transmitting part and a receiving part, wherein a light shielding layer is arranged at the position, close to the bottom of the detection groove, of the transmitting part.
By adopting the technical scheme, due to the arrangement of the shading layer, when the light of the transmitting device penetrating through the transmitting part is transmitted to the receiving device, the covered range can be reduced, so that the sensor can also respond when the depth of the inserted position of the detected object is shallower, thereby being beneficial to improving the detection precision of the sensor.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. due to the arrangement of the shading layer, when the light of the transmitting device passing through the transmitting part is transmitted to the receiving device, the covered range is reduced, so that the sensor can respond when the depth of the inserted position of the detected object is shallower, and the detection precision of the sensor is improved;
2. the light shielding layer is a black adhesive tape layer stuck on the light guide shell, so that light close to the bottom of the detection groove can be shielded, and the light shielding layer is of a detachable structure, so that the light guide shell and the light shielding layer can be used as two independent elements, and the manufacturing cost of the sensor cannot be excessively increased.
Drawings
Fig. 1 is a schematic structural diagram of a trench type photoelectric sensor in an embodiment of the present utility model.
Fig. 2 is a schematic diagram illustrating connection between the light guiding housing and the light shielding layer in an embodiment of the utility model.
Reference numerals illustrate: 1. a housing; 11. a first cover portion; 12. a second cover portion; 13. a detection groove; 14. a light-transmitting hole; 2. a transmitting device; 3. a receiving device; 4. a light guide housing; 41. a transmitting section; 42. a receiving section; 43. a serial connection part; 5. a light shielding layer; 6. a mounting groove; 7. and connecting the convex blocks.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-2.
The embodiment of the utility model discloses a groove-type photoelectric sensor. Referring to fig. 1 and 2, the slot-type photoelectric sensor includes a housing 1, a transmitting device 2, a receiving device 3, a light guiding housing 4, and a first cover 11 and a second cover 12 integrally formed with the housing 1 at intervals, where the first cover 11 and the second cover 12 make the entire housing 1 have a U-shape, so that the housing 1 is formed with a detection slot 13, where light holes 14 are formed on surfaces of the first cover 11 and the second cover 12 that are close to each other, and the light holes 14 on the first cover 11 are communicated with the light holes 14 on the second cover 12; the launching device 2 is fixedly arranged in the inner cavity of the first cover part 11; the receiving means 3 is then fixedly mounted in the inner cavity of the second housing part 12.
Referring to fig. 1 and 2, the light guiding housing 4 is fixedly installed in the inner cavity of the casing 1, wherein the light guiding housing 4 has a transmitting part 41 and a receiving part 42, the transmitting part 41 is located in the inner cavity of the first cover part 11, the transmitting part 41 is connected with the transmitting device 2, the transmitting part 41 is provided with a shading layer 5 near the bottom of the detecting groove 13, the receiving part 42 is located in the inner cavity of the second cover part 12, the receiving part 42 is connected with the receiving device 3, and when the light transmitted by the transmitting device 2 passing through the transmitting part 41 is transmitted to the receiving device 3, the covered range is reduced, so that the sensor can respond even when the depth of the inserted position of the detected object is shallow, thereby helping to improve the detecting precision of the sensor.
Referring to fig. 1 and 2, in the present embodiment, the light shielding layer 5 is disposed on a side of the emission part 41 away from the light-passing hole 14, specifically, the light shielding layer 5 is implemented by spraying black paint on the light guiding housing 4, so that light near the bottom of the detection groove 13 is shielded, and the structural form of the entire light guiding housing 4 is not greatly changed, so as to keep the structure of the sensor compact, while in other embodiments, if influence on the appearance of the sensor is not considered, the light shielding layer 5 may be disposed on a side of the emission part 41 near the light-passing hole 14, and meanwhile, the light shielding layer 5 may be implemented by adhering black paint on the light guiding housing 4, or may be implemented by mounting a mirror element on the light guiding housing 4.
Referring to fig. 1 and 2, in the present embodiment, since the light shielding layer 5 is realized by spraying black paint, in order to prevent paint from flowing to other positions of the light guide housing 4 without solidifying, the emitting part 41 is integrally provided with a mounting groove 6, and the mounting groove 6 is used for accommodating the light shielding layer 5 to restrict the flow of paint, and at the same time, can play an indicating role on the installation position of the light shielding layer 5.
Referring to fig. 1 and 2, in order to more easily align the light shielding layer 5 with the light passing hole 14 when the light guide housing 4 is mounted on the casing 1, the coupling protrusions 7 are integrally formed on one side surfaces of the transmitting portion 41 and the receiving portion 42, which are adjacent to each other, respectively, the coupling protrusions 7 are embedded in the light passing hole 14, and a connection line between the coupling protrusions 7 and the light shielding layer 5 is parallel to a connection line between the transmitting device 2 and the receiving device 3, so that the light shielding layer 5 can be aligned with the light passing hole 14, thereby helping to simplify the assembly difficulty of the sensor.
Referring to fig. 1 and 2, in order to further reduce the complexity of assembling the sensor, the light guiding housing 4 further has a serial portion 43, and two ends of the serial portion 43 are integrally connected with the emitting portion 41 and the receiving portion 42, respectively, so that the light guiding housing 4 is in a U-shaped bent frame shape, and the light guiding housing 4 forms an integral element, thereby reducing the complexity of assembling the sensor.
The implementation principle of the groove type photoelectric sensor provided by the embodiment of the utility model is as follows: due to the arrangement of the light shielding layer 5, the coverage of the light emitted from the emitting device 2 passing through the emitting portion 41 is reduced when the light is transmitted to the receiving device 3, so that the sensor can respond even when the depth of the insertion position of the detected object is shallow, thereby helping to improve the detection accuracy of the sensor.
The embodiment of the utility model also discloses a light guide shell of the groove-type photoelectric sensor, wherein the light guide shell of the groove-type photoelectric sensor is identical to the light guide shell of the previous embodiment, and the description is omitted here.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (9)
1. A groove-type photoelectric sensor is characterized in that: comprising the following steps:
a housing (1) having a first cover portion (11) and a second cover portion (12) arranged at intervals, wherein a detection groove (13) is formed between the first cover portion (11) and the second cover portion (12), the first cover portion (11) and the second cover portion (12) are both provided with light passing holes (14), and the light passing holes (14) between the first cover portion (11) and the second cover portion (12) are communicated;
a transmitting device (2) arranged in the inner cavity of the first cover part (11);
a receiving device (3) arranged in the inner cavity of the second cover part (12);
the light guide shell (4) is provided with a transmitting part (41) and a receiving part (42), the transmitting part (41) is connected with the transmitting device (2), a shading layer (5) is arranged at the position, close to the bottom of the detection groove (13), of the transmitting part (41), and the receiving part (42) is connected with the receiving device (3).
2. The slot type photoelectric sensor of claim 1, wherein: the light shielding layer (5) is arranged on one side of the emitting part (41) away from the light transmission hole (14).
3. The slot type photoelectric sensor according to claim 2, wherein: the shading layer (5) is a black paint layer sprayed on the light guide shell (4).
4. The slot type photoelectric sensor according to claim 2, wherein: the shading layer (5) is a black adhesive tape layer stuck on the light guide shell (4).
5. The slot type photoelectric sensor according to claim 2, wherein: the shading layer (5) is a mirror layer arranged on the light guide shell (4).
6. A slot photoelectric sensor according to claim 3, wherein: the emitting part (41) is provided with a mounting groove (6), and the mounting groove (6) is used for accommodating the shading layer (5).
7. The slot type photoelectric sensor of claim 1, wherein: the light-transmitting device is characterized in that connecting lugs (7) are respectively arranged on the surfaces of one sides, close to each other, of the transmitting part (41) and the receiving part (42), the connecting lugs (7) are embedded in the light-transmitting holes (14), and connecting lines between the connecting lugs (7) and the light-shielding layers (5) are parallel to connecting lines between the transmitting device (2) and the receiving device (3).
8. The slot type photoelectric sensor of claim 1, wherein: the light guide housing (4) further comprises a serial connection part (43), and two ends of the serial connection part (43) are respectively connected with the emitting part (41) and the receiving part (42) in an integral way.
9. The utility model provides a light guide shell of trough type photoelectric sensor which characterized in that: the device is provided with a transmitting part (41) and a receiving part (42), wherein a shading layer (5) is arranged at a position of the transmitting part (41) close to the bottom of the detection groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321233356.0U CN219798364U (en) | 2023-05-20 | 2023-05-20 | Groove-type photoelectric sensor and light guide shell thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321233356.0U CN219798364U (en) | 2023-05-20 | 2023-05-20 | Groove-type photoelectric sensor and light guide shell thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219798364U true CN219798364U (en) | 2023-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321233356.0U Active CN219798364U (en) | 2023-05-20 | 2023-05-20 | Groove-type photoelectric sensor and light guide shell thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219798364U (en) |
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2023
- 2023-05-20 CN CN202321233356.0U patent/CN219798364U/en active Active
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