CN217035434U - Optical watertight travel switch device - Google Patents
Optical watertight travel switch device Download PDFInfo
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- CN217035434U CN217035434U CN202122681084.8U CN202122681084U CN217035434U CN 217035434 U CN217035434 U CN 217035434U CN 202122681084 U CN202122681084 U CN 202122681084U CN 217035434 U CN217035434 U CN 217035434U
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Abstract
The utility model provides an optical watertight travel switch device, comprising: the light-emitting device comprises a shell, a light-emitting source, a photoelectric conversion device, a sleeve, a movable part and an elastic body. The utility model designs a unique optical watertight travel switch by adopting the characteristic that optical signals can be transmitted in a non-contact way. The method is characterized by comprising the following steps: the miniaturization is realized, and signal related devices such as a light-emitting light source, a photoelectric conversion device and the like are all miniaturized devices, so that the miniaturization design of the whole optical watertight travel switch can be realized; the electrical components are fully sealed, and multiple watertight protection measures are adopted at the installation positions of the optical generation assembly and the optical receiving assembly; the electrical component and the movable component are completely isolated, the electrical component and the movable component are not in direct physical contact, and the movable component controls the on-off of the light path only by means of deformation of the flexible sleeve; the whole machine has high reliability, the dynamic watertight problem caused by the movable part is avoided, and the water leakage caused by the movement of the movable part cannot damage the work of the whole machine.
Description
Technical Field
The utility model relates to the technical field of optics, in particular to an optical watertight travel switch device.
Background
The working principle of the travel switch device is to switch and determine the working state of a circuit through the movement position of a moving part, and if the travel switch device is used in an underwater environment, the dynamic watertight performance between the moving part and an electrical part becomes an important index of a watertight travel switch. However, when the movable part moves, even if there is a waterproofing measure such as a gasket, there is a risk of water leakage, thereby causing short-circuit failure of the electrical parts.
The gap space required by the movement of the movable part in the common travel switch and the watertight protection of the electrical parts communicated with the gap space are main limiting factors of the travel switch in underwater application.
Disclosure of Invention
The utility model provides an optical watertight travel switch device, aiming at solving the problem of dynamic watertight of a travel switch. The utility model designs an optical watertight travel switch which has the characteristics that optical signals can be transmitted in a non-contact manner, is fully sealed in electrical components, fully isolated from movable components, high in reliability of the whole machine and miniaturized.
The utility model provides an optical watertight travel switch device, which comprises a shell, an optical generation assembly installation cavity fixed in the shell, a light source driving printed board arranged in the optical generation assembly installation cavity, a light-emitting source connected with the light source driving printed board, a photoelectric conversion device arranged on an output light path of the light-emitting source, a sleeve pipe hermetically connected with an output end of the light-emitting source and a receiving end of the photoelectric conversion device, an optical receiving assembly installation cavity for fixing the photoelectric conversion device, a photoelectric conversion device driving printed board arranged in the optical receiving assembly installation cavity and electrically connected with the photoelectric conversion device, a movable part inserted into the shell and arranged at the upper end of the sleeve pipe, and elastic bodies fixed with the lower end of the movable part and positioned at two sides of the outside of the movable part;
the optical generation assembly installation cavity and the optical receiving assembly installation cavity are sealed, the sleeve can be pressed down to deform by the movable part, and the number of the elastic bodies is 2.
The utility model relates to an optical watertight travel switch device, which is preferably characterized by further comprising a first flexible sleeve mounting arm, a first light path transmission hole, first window glass, a first fastening ring and a first sealing cover plate, wherein the first flexible sleeve mounting arm is connected with the outside of an optical generation assembly mounting cavity and is arranged on a light-emitting light source output light path;
a first flexible sleeve mounting arm is secured to the inner wall of the sleeve.
According to the optical watertight travel switch device, as an optimal mode, watertight glue is used for sealing between the first flexible sleeve installation arm and the sleeve, watertight glue is used for sealing between the first light path transmission hole and the first window glass, an optical generation assembly installation cavity and a first sealing cover plate are sealed by using the watertight glue, and waterproof glue is used for filling the optical generation assembly installation cavity;
the optical generation assembly mounting cavity and the first flexible sleeve mounting arm are of an integrated structure;
the first light path transmission hole is a through hole.
The utility model relates to an optical watertight travel switch device, which is preferably characterized by further comprising a second flexible sleeve mounting arm, a second light path transmission hole, second window glass, a second fastening ring and a second sealing cover plate, wherein the second flexible sleeve mounting arm is connected with the outside of an optical receiving assembly mounting cavity and is arranged on an input light path of a photoelectric conversion device;
the second flexible sleeve mounting arm is fixed to the inner wall of the sleeve.
According to the optical watertight travel switch device, as an optimal mode, watertight glue is used for sealing between the second flexible sleeve installation arm and the sleeve, watertight glue is used for sealing between the second light path transmission hole and the second window glass, an optical receiving assembly installation cavity and a second sealing cover plate are sealed by using the watertight glue, and waterproof glue is used for filling the optical receiving assembly installation cavity;
the optical receiving assembly mounting cavity and the second flexible sleeve mounting arm are of an integrated structure;
the second light path transmission hole is a through hole.
The optical watertight travel switch device provided by the utility model further comprises a cable connected with the light source driving printed board and the photoelectric conversion device driving printed board as a preferred mode, and watertight glue is used for sealing the positions where the cable penetrates out of the shell, the optical generation assembly mounting cavity and the optical receiving assembly mounting cavity.
The optical watertight travel switch device provided by the utility model further comprises a signal processing module electrically connected with a cable and a power supply module electrically connected with both the light source driving printed board and the photoelectric conversion device driving printed board as a preferred mode.
The utility model relates to an optical watertight travel switch device, which is preferably characterized in that a light-emitting light source is a collimating light device or a diverging light device, and a photoelectric conversion device is an electric vacuum device or a photoelectric device.
The utility model relates to an optical watertight travel switch device, which is characterized in that as a preferred mode, a light-emitting light source is a semiconductor laser or a diode;
the photoelectric conversion device is any one of: a photoelectric tube, a photomultiplier, a photoresistor, a phototriode and a CCD.
In the optical watertight travel switch device according to the present invention, preferably, the elastic body is a spring or a leaf spring.
An optical watertight travel switch comprises a shell assembly, an optical generation assembly, an optical receiving assembly, a cable assembly, a driving mechanism and a sealing mechanism;
an optical generation assembly mounting cavity, an optical receiving assembly mounting cavity and two outward cable wiring holes of the mounting cavities are processed in the shell assembly; the shell component is provided with a sealing cover plate for an optical generation component mounting cavity and an optical receiving component mounting cavity respectively; the shell component is provided with mounting arms of a flexible sleeve, and a light path transmission hole is formed in the axis of each mounting arm; the component is provided with a driving mechanism movable hole;
the optical generation component and the optical receiving component realize point-to-point optical signal transmission through a first optical path transmission hole, first window glass, a flexible sleeve, second window glass and a second optical path transmission hole;
the cable assembly realizes the external electrification communication of the optical generation assembly and the optical receiving assembly through the cable wiring hole;
in the driving mechanism, a movable part penetrates through a movable hole to extrude the flexible sleeve, and an elastic object realizes the reset work of the movable part after the external force is unloaded;
in the sealing mechanism, a first window glass and a second window glass are respectively placed in the light path transmission hole and matched with watertight glue for waterproof sealing; the flexible sleeve is arranged on the mounting arms at the two sides, is adhered by using watertight glue and is respectively fixed by using the fastening ring;
the electrical assembly and the movable assembly are completely isolated, and the dynamic watertight problem brought by the movable assembly cannot influence electrical components;
the action mode of the movable part of the driving mechanism is not limited to a slideway extrusion mode, and is also suitable for action modes which can press the flexible sleeve to deform, such as rocking bars, twisting, bidirectional pushing and pulling and the like;
the reset elastic object of the driving mechanism is adjusted according to the action mode of the movable part, and the elastic object can be a spring, a spring piece and the like;
the light path transmission hole is isolated by adopting a corrosion-resistant glass window sheet, and transparent waterproof glue is filled for sealing and fixing, so that the electric component is protected in a watertight way;
the flexible sleeve is made of corrosion-resistant, good-ductility, wear-resistant and watertight material;
the physical connection part of the flexible sleeve and the mounting arm is bonded by using sealant and is fixed again by matching with the fastening ring, so that double sealing protection is realized;
insulating waterproof glue can be filled into installation cavities of the optical generation assembly and the optical receiving assembly to further protect the circuit in a watertight manner;
the light source of the optical generation assembly can adopt collimating light devices such as a semiconductor laser and the like;
the light source of the optical generation assembly can adopt light emitting diodes and other diverging light devices;
the photoelectric conversion device of the optical receiving component can adopt vacuum devices such as a photoelectric tube, a photomultiplier tube and the like;
photoelectric conversion devices of the optical receiving assembly can adopt photoelectric devices such as semiconductor devices such as photoresistors, phototransistors and CCDs;
the power supply module is used for providing a driving power supply for the optical generating assembly and the optical receiving assembly;
a signal processing module for processing the output signal of the optical watertight travel switch, outputting the in-place information and providing the switch control quantity
The utility model provides an optical watertight travel switch which comprises a shell assembly, an optical generating assembly, an optical receiving assembly, a cable assembly, a driving mechanism and a sealing mechanism. The shell component comprises a watertight cable wiring hole, an optical generation component mounting cavity, an optical receiving component mounting cavity, a driving mechanism moving hole, a light path transmission hole and a flexible sleeve mounting arm; the optical generating assembly comprises a light-emitting light source and a light source driving printed board; the optical receiving assembly comprises a photoelectric conversion device and a driving printed board; the cable assembly comprises power supply and signal transmission cables of the optical generating assembly and the optical receiving assembly and watertight glue; the driving mechanism comprises a movable part and a reset elastic object; the sealing mechanism comprises a corrosion-resistant flexible sleeve, corrosion-resistant window glass, waterproof sealant and a fastening ring.
The shell component is matched with the cable component, the optical generation component, the optical receiving component, the driving mechanism and the sealing component to process corresponding watertight cable wiring holes, an optical generation component mounting cavity, an optical receiving component mounting cavity, a driving mechanism moving hole, a light path transmission hole and a flexible sleeve mounting arm. Sealant is poured between the watertight cable and the shell at two ends of the watertight cable wiring hole; the optical generating assembly and the optical receiving assembly are arranged in the respective installation cavities and then connected with the watertight cable to realize external electric connection and signal transmission; corrosion-resistant window glass is arranged in light path transmission holes at two sides of the optical generation assembly and the optical receiving assembly, and transparent waterproof sealant is filled for fixing; the corrosion-resistant flexible sleeve is arranged on the mounting arms on the two sides of the shell and is fixed by the fastening ring and the waterproof sealant.
The driving mechanism penetrates through a corresponding movable hole of the shell structure, and an elastic object is placed in the free movable direction of the driving mechanism for the reset movement of the movable part.
The utility model has the following advantages:
unlike common travel switch devices, the gap between the movable part and the shell of the utility model does not need to be sealed, even if water permeates into the gap of the driving mechanism, the water can be blocked by the flexible sleeve, and the sealed window glass can carry out secondary protection on the electrical part, thereby ensuring that the electrical part can not be damaged by water immersion. When an external stroke or action signal comes, the movable part radially extrudes the flexible sleeve, so that the optical signal path is interrupted, and the optical receiving assembly can judge whether the external stroke or action is in place or not through the signal turnover of whether the optical signal is in place or not, so that the switch control effect is achieved.
Drawings
FIG. 1 is a schematic diagram of an optical watertight travel switch device;
FIG. 2 is a side view of an optical watertight travel switch device;
fig. 3 is a state diagram of an optical watertight travel switch device when a travel signal arrives.
Reference numerals are as follows:
1. a housing; 2. an optical generation assembly mounting cavity; 3. a light source driving printed board; 4. a light emitting source; 5. a photoelectric conversion device; 6. a sleeve; 7. an optical receiving module mounting cavity; 8. The photoelectric conversion device drives the printed board; 9. a movable member; 10. an elastomer; 11. a first flexible sleeve mounting arm; 12. a first optical path transmission hole; 13. a first window glass; 14. A first fastening ring; 15. a first sealing cover plate; 16. a second flexible sleeve mounting arm; 17. A second optical path transmission hole; 18. a second window glass; 19. a second fastening ring; 20. a second sealing cover plate; 21. and (6) a cable wire.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
As shown in fig. 1-2, an optical watertight travel switch device includes a housing 1, an optical generation module installation cavity 2 fixed inside the housing 1, a light source driving printed board 3 disposed inside the optical generation module installation cavity 2, a light emitting source 4 connected to the light source driving printed board 3, a photoelectric conversion device 5 disposed on an output light path of the light emitting source 4, a sleeve 6 hermetically connected to an output end of the light emitting source 4 and a receiving end of the photoelectric conversion device 5, an optical receiving module installation cavity 7 fixing the photoelectric conversion device 5, a photoelectric conversion device driving printed board 8 disposed inside the optical receiving module installation cavity 7 and electrically connected to the photoelectric conversion device 5, a movable member 9 inserted into the housing 1 and disposed at an upper end of the sleeve 6, an elastic member 10 fixed to a lower end of the movable member 9 and disposed at both sides of an outside of the movable member 5, a first flexible sleeve mounting arm 11 connected to the outside of the optical generation module mounting chamber 2 and disposed on the output light path of the light-emitting source 4, a first light path transmission hole 12 disposed on the central axis of the first flexible sleeve mounting arm 11, a first window glass 13 disposed inside the first light path transmission hole 12, a first fastening ring 14 disposed on the outside of the first flexible sleeve mounting arm 11, a first sealing cover plate 15 disposed on the side of the optical generation module mounting chamber 2 opposite to the first flexible sleeve mounting arm 11, a second flexible sleeve mounting arm 16 connected to the outside of the optical reception module mounting chamber 7 and disposed on the input light path of the photoelectric conversion device 5, a second light path transmission hole 17 disposed on the central axis of the second flexible sleeve mounting arm 16, a second window glass 18 disposed inside the second light path transmission hole 17, a second flexible sleeve mounting arm 16, A second fastening ring 19 outside the sleeve 6, a second sealing cover plate 20 arranged on the side of the optical generation assembly mounting cavity 2 opposite to the first flexible sleeve mounting arm 11, a cable 21 connected to both the light source driving printed board 3 and the photoelectric conversion device driving printed board 8, a signal processing module electrically connected to the cable 21, and a power supply module electrically connected to both the light source driving printed board 3 and the photoelectric conversion device driving printed board 8;
the optical generation assembly installation cavity 2 and the optical receiving assembly installation cavity 7 are sealed, the sleeve 6 can be pressed and deformed by the movable part 9, and the number of the elastic bodies 10 is 2;
the light-emitting light source 4 is a collimating light device or a diverging light device, and the photoelectric conversion device 5 is an electric vacuum device or a photoelectric device;
the light-emitting source 4 is a semiconductor laser or a diode;
the photoelectric conversion device 5 is any one of: the photoelectric detector comprises a photoelectric tube, a photomultiplier, a photoresistor, a phototriode and a CCD;
the elastic body 10 is a spring or a spring piece;
the first flexible sleeve mounting arm 11 is fixed on the inner wall of the sleeve 6;
the first flexible sleeve mounting arm 11 and the sleeve 6 are sealed by using watertight glue, the first light path transmission hole 12 and the first window glass 13 are sealed by using watertight glue, the optical generation assembly mounting cavity 2 and the first sealing cover plate 15 are sealed by using watertight glue, and the optical generation assembly mounting cavity 2 is filled with waterproof glue;
the optical generation assembly mounting cavity 2 and the first flexible sleeve mounting arm 11 are of an integrated structure;
the first light path transmission hole 12 is a through hole;
a second flexible sleeve mounting arm 16 is fixed to the inner wall of the sleeve 6;
the space between the second flexible sleeve mounting arm 16 and the sleeve 6 is sealed by using watertight glue, the space between the second light path transmission hole 17 and the second window glass 18 is sealed by using watertight glue, the optical receiving component mounting cavity 7 and the second sealing cover plate 20 are sealed by using watertight glue, and the interior of the optical receiving component mounting cavity 7 is filled by using waterproof glue;
the optical receiving assembly mounting cavity 7 and the second flexible sleeve mounting arm 16 are of an integrated structure;
the second light path transmission hole 17 is a through hole;
the position where the cable 21 comes out from the housing 1, the optical generation module installation cavity 2 and the optical reception module installation cavity 7 is sealed with watertight glue.
Example 2
As shown in fig. 1-2, an optical watertight stroke switch device includes:
the housing 1 includes: a watertight cable routing hole; the optical generation component mounting part comprises an optical generation component mounting cavity 2, a first flexible sleeve mounting arm 11, a first light path transmission hole 12 and a first sealing cover plate 15; the optical receiving component mounting part comprises an optical receiving component mounting cavity 7, a second flexible sleeve mounting arm 16, a second optical path transmission hole 17 and a second sealing cover plate 20; a drive mechanism movable hole;
the optical generating assembly comprises: a light source driving printed board 3, a light emitting source 4;
the optical receiving module includes: the photoelectric conversion device driving printed board 8, the photoelectric conversion device 5;
the cable assembly includes: watertight cable 21, watertight glue;
the drive mechanism includes: a movable part 9, a reset elastic body 10;
the sealing mechanism includes: a corrosion resistant flexible sleeve 6, a corrosion resistant first window pane 13, a first fastening ring 14, a corrosion resistant second window pane 18, a second fastening ring 19.
All ports of the watertight cable wiring hole are filled with watertight glue; the contact parts of the sealing cover plates 15 and 20 and the shell are filled with sealant and fixed in a compression joint mode; the optical generation component mounting cavity 2 and the optical receiving component mounting cavity 7 can be used for performing waterproof glue filling treatment after the optical generation component and the optical receiving component are mounted; the first light path transmission hole 12 and the second light path transmission hole 17 are fixedly filled with transparent waterproof sealant between the first window glass 13 and the second window glass 18; the flexible sleeve 6 is connected with the first mounting arm 11 and the second mounting arm 16 by adopting sealant, and is matched with the first fastening ring 14 and the second fastening ring 19 for further sealing and fixing;
the method of use of examples 1-2 was:
the utility model has the advantages that the clearance between the movable part 9 of the driving mechanism and the shell assembly does not need to consider the watertight influence, and the difficulty of dynamic waterproof sealing is a main restriction factor of the underwater application of the common photoelectric travel switch.
The utility model adopts the miniaturization and semi-sealed design of the whole machine. The optical watertight travel switch signal related devices are a light-emitting light source 4 and a photoelectric conversion device 5 which are both miniaturized devices, so that the whole travel switch can be miniaturized; the light source 4 may be divergent light or collimated light, and may be any light emitting body such as a light emitting diode or a semiconductor laser; the photoelectric conversion device 5 may be a vacuum device such as a photoelectric tube or a photomultiplier, or a semiconductor device such as a photoresistor, a phototriode, or a CCD. In combination with the characteristic part, the utility model realizes the full sealing of the electrical component and the full isolation of the electrical component and the movable component, and is more suitable for underwater environment application.
The working principle of the utility model is as follows: before the external force comes, the light-emitting light source 4 generates a light path to reach the photoelectric conversion device 5 along the collimating flexible sleeve 6, and then the driving circuit transmits a high-order signal; as shown in fig. 3, when an external force comes, the movable part 9 will radially press the flexible sleeve 6, causing an interruption of the optical path, the elastic object 10 is compressed, and the photoelectric conversion device 5 does not generate signal inversion due to no optical signal input, and the driving circuit transmits a low-level signal; when the external force disappears, the elastic object 10 releases the pressure to push the movable part 9 to reset, the light path is switched on again, the photoelectric conversion device 5 generates signal turnover again, and the driving circuit transmits a high-level signal, so that the switch control effect is achieved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the utility model concepts of the present invention in the scope of the present invention.
Claims (10)
1. An optical watertight travel switch device, characterized in that: including shell (1), fix subassembly installation cavity (2) takes place for the inside optics of shell (1), sets up subassembly installation cavity (2) inside light source drive printing board (3) takes place for optics, with luminous light source (4) that light source drive printing board (3) links to each other sets up photoelectric conversion device (5) on the output light path of luminous light source (4), with the output of luminous light source (4) the receiving end of photoelectric conversion device (5) is sealed continuous sleeve pipe (6) all, fixes optical receiving subassembly installation cavity (7) of photoelectric conversion device (5) set up optical receiving subassembly installation cavity (7) inside and with photoelectric conversion device drive printing board (8) that photoelectric conversion device (5) electricity is connected insert shell (1) and set up are in movable part (9) of sleeve pipe (6) upper end and with the lower extreme of movable part (9) is fixed and is located movable part (9) the lower extreme is fixed and be located An elastic body (10) on both sides of the outside of the sleeve (6);
the optical generation assembly installation cavity (2) and the optical receiving assembly installation cavity (7) are sealed, the sleeve (6) can be deformed under the pressing of the movable part (9), and the number of the elastic bodies (10) is 2.
2. An optical watertight travel switch device according to claim 1, wherein: the optical generation component mounting structure is characterized by further comprising a first flexible sleeve mounting arm (11) which is connected with the outside of the optical generation component mounting cavity (2) and arranged on an output light path of the light-emitting light source (4), a first light path transmission hole (12) which is arranged on the central axis of the first flexible sleeve mounting arm (11), first window glass (13) which is arranged in the first light path transmission hole (12), a first fastening ring (14) which is arranged on the outside of the first flexible sleeve mounting arm (11) and the sleeve (6) and a first sealing cover plate (15) which is arranged on one side, opposite to the first flexible sleeve mounting arm (11), of the optical generation component mounting cavity (2);
the first flexible sleeve mounting arm (11) is fixed to the inner wall of the sleeve (6).
3. An optical watertight travel switch device according to claim 2, wherein: the first flexible sleeve mounting arm (11) and the sleeve (6) are sealed by using watertight glue, the first light path transmission hole (12) and the first window glass (13) are sealed by using watertight glue, the optical generation assembly mounting cavity (2) and the first sealing cover plate (15) are sealed by using watertight glue, and the optical generation assembly mounting cavity (2) is filled with waterproof glue;
the optical generation assembly mounting cavity (2) and the first flexible sleeve mounting arm (11) are of an integrated structure;
the first light path transmission hole (12) is a through hole.
4. An optical watertight travel switch device according to claim 2, wherein: the photoelectric conversion device is characterized by further comprising a second flexible sleeve mounting arm (16) which is connected with the outside of the optical receiving component mounting cavity (7) and arranged on an input optical path of the photoelectric conversion device (5), a second optical path transmission hole (17) arranged on the central axis of the second flexible sleeve mounting arm (16), second window glass (18) arranged in the second optical path transmission hole (17), a second fastening ring (19) arranged on the outside of the second flexible sleeve mounting arm (16) and the sleeve (6) and a second sealing cover plate (20) arranged on one side, opposite to the first flexible sleeve mounting arm (11), of the optical generating component mounting cavity (2);
the second flexible sleeve mounting arm (16) is fixed to the inner wall of the sleeve (6).
5. An optical watertight travel switch device according to claim 4, wherein: the second flexible sleeve mounting arm (16) and the sleeve (6) are sealed by using watertight glue, the second light path transmission hole (17) and the second window glass (18) are sealed by using watertight glue, the optical receiving assembly mounting cavity (7) and the second sealing cover plate (20) are sealed by using watertight glue, and the interior of the optical receiving assembly mounting cavity (7) is filled by using waterproof glue;
the optical receiving component mounting cavity (7) and the second flexible sleeve mounting arm (16) are of an integrated structure;
the second light path transmission hole (17) is a through hole.
6. An optical watertight travel switch device according to claim 1, wherein: still include with light source drive printed board (3) with cable conductor (21) that photoelectric conversion device drive printed board (8) all are connected, cable conductor (21) are followed shell (1) subassembly installation cavity (2) and optics take place the position that subassembly installation cavity (7) were worn out and use the watertight to glue sealedly.
7. An optical watertight travel switch device according to claim 6, wherein: the photoelectric conversion device is characterized by further comprising a signal processing module electrically connected with the cable (21) and a power supply module electrically connected with the light source driving printed board (3) and the photoelectric conversion device driving printed board (8).
8. An optical watertight travel switch device according to claim 1, wherein: the light-emitting light source (4) is a collimating light device or a diverging light device, and the photoelectric conversion device (5) is an electric vacuum device or a photoelectric device.
9. An optical watertight travel switch device according to claim 8, wherein: the light-emitting light source (4) is a semiconductor laser or a diode;
the photoelectric conversion device (5) is any one of: a photoelectric tube, a photomultiplier, a photoresistor, a phototriode and a CCD.
10. An optical watertight travel switch device according to claim 1, wherein: the elastic body (10) is a spring or a spring piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122681084.8U CN217035434U (en) | 2021-11-04 | 2021-11-04 | Optical watertight travel switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122681084.8U CN217035434U (en) | 2021-11-04 | 2021-11-04 | Optical watertight travel switch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035434U true CN217035434U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122681084.8U Active CN217035434U (en) | 2021-11-04 | 2021-11-04 | Optical watertight travel switch device |
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| Country | Link |
|---|---|
| CN (1) | CN217035434U (en) |
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2021
- 2021-11-04 CN CN202122681084.8U patent/CN217035434U/en active Active
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