CN220322407U - Groove-type photoelectric sensor - Google Patents
Groove-type photoelectric sensor Download PDFInfo
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- CN220322407U CN220322407U CN202322032007.9U CN202322032007U CN220322407U CN 220322407 U CN220322407 U CN 220322407U CN 202322032007 U CN202322032007 U CN 202322032007U CN 220322407 U CN220322407 U CN 220322407U
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- photoelectric sensor
- type photoelectric
- infrared
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- 238000001746 injection moulding Methods 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 210000000078 claw Anatomy 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model relates to the technical field of sensors, in particular to a groove-type photoelectric sensor. The utility model provides a groove-type photoelectric sensor, which comprises a light filter support, an infrared emission lamp, an infrared receiving lamp, a circuit board, an inner shell and an outer shell, wherein the light filter support is arranged on the inner shell; the infrared emission lamp is arranged at one end of the light filtering piece support, the infrared receiving lamp is arranged at the other end of the light filtering piece support, the circuit board is arranged on the light filtering piece support, and the infrared emission lamp and the infrared receiving lamp are connected with the circuit board; the inner shell is formed on the optical filter support in an injection molding mode, and the inner shell wraps the infrared emission lamp, the infrared receiving lamp, a part of the circuit board and a part of the optical filter support; the inner shell is formed by injection molding, and the outer shell wraps the inner shell. Thus, the sealing performance and the waterproof performance are greatly improved, and the service life of the groove-type photoelectric sensor is prolonged.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to a groove-type photoelectric sensor.
Background
The groove-shaped photoelectric sensor is formed by arranging a light emitter and a receiver face to face on two sides of a groove. The light emitter can emit infrared light or visible light, and the light receiver can receive the light without any resistance. However, when the detected object passes through the groove, the light is blocked, the photoelectric switch acts, a switch control signal is output, and the load current is cut off or switched on, so that one control action is completed.
The groove-type photoelectric sensor structure on the market comprises an infrared emission lamp, an infrared receiving lamp, a circuit board, an outer shell and a sealing cover plate, wherein during production, the outer shell is firstly injection molded, then the infrared emission lamp, the infrared receiving lamp and the circuit board are assembled into the outer shell, and finally the sealing cover plate is welded into the outer shell through ultrasonic welding.
The groove-type photoelectric sensor produced in this way has poor waterproof and sealing performances, insufficient anti-interference capability and short service life because only the outer shell plays a role in protection.
Disclosure of Invention
The utility model solves the problems that: at present, the groove-type photoelectric sensor has poor waterproof and sealing performances, insufficient anti-interference capability and short service life because only the outer shell plays a role in protection.
(II) technical scheme
A groove-type photoelectric sensor comprises a light filter support, an infrared emission lamp, an infrared receiving lamp, a circuit board, an inner shell and an outer shell;
the infrared emission lamp is arranged at one end of the light filtering piece support, the infrared receiving lamp is arranged at the other end of the light filtering piece support, the circuit board is arranged on the light filtering piece support, and the infrared emission lamp and the infrared receiving lamp are connected with the circuit board;
the inner shell is formed on the optical filter support in an injection molding mode, and the inner shell wraps the infrared emission lamp, the infrared receiving lamp, a part of the circuit board and a part of the optical filter support;
the inner shell is formed by injection molding, and the outer shell wraps the inner shell.
According to one embodiment of the utility model, the filter holder comprises a support plate, a first mounting frame and a second mounting frame;
the bottom of backup pad is formed with the installation zone, first mounting bracket is established perpendicularly the top one side of backup pad, the second mounting bracket is established perpendicularly the top opposite side of backup pad, the circuit board is installed in the installation zone, infrared emission lamp is installed on the first mounting bracket, infrared receiving lamp is installed on the second mounting bracket.
According to one embodiment of the utility model, the supporting plate comprises a rectangular frame, vertical plates and hooking claws, wherein two opposite side ends of the rectangular frame are respectively provided with one hooking claw, the front side and the back side of the rectangular frame are respectively provided with one vertical plate, the lower surfaces of the vertical plates and the hooking claws are lower than the lower surface of the rectangular frame, and the installation area is formed between the two hooking claws of the two vertical plates.
According to one embodiment of the utility model, the first mounting frame and the second mounting frame have the same structure, a first surrounding cavity is formed on one side of the first mounting frame, the infrared emission lamp is mounted in the first surrounding cavity, a second surrounding cavity is formed on one side of the second mounting frame, and the infrared receiving lamp is mounted in the second surrounding cavity.
According to one embodiment of the utility model, a first pin is arranged at the bottom of the infrared emission lamp and connected with a bonding pad on the circuit board, and a second pin is arranged at the bottom of the infrared receiving lamp and connected with the bonding pad on the circuit board.
According to one embodiment of the utility model, the groove-type photoelectric sensor further comprises a cable, a rectangular hole is formed in the bottom of the inner shell, the rectangular hole is located right below the circuit board, copper wires of the cable penetrate through the rectangular hole to be connected with bonding pads on the circuit board, and the outer shell wraps the rectangular hole.
According to one embodiment of the utility model, the inner housing encloses the support plate, the lower half of the first mounting frame, the lower half of the second mounting frame, the infrared emitting lamp and the infrared receiving lamp.
According to one embodiment of the utility model, the inner side surfaces of the first mounting frame and the second mounting frame are respectively provided with a convex block, and the outer shell is provided with two through holes matched with the convex blocks.
According to one embodiment of the utility model, the filter holder is a light-transmitting holder.
According to one embodiment of the utility model, the inner housing is a translucent housing and the outer housing is a light shielding outer housing.
The utility model has the beneficial effects that:
the utility model provides a groove-type photoelectric sensor, which comprises a light filter support, an infrared emission lamp, an infrared receiving lamp, a circuit board, an inner shell and an outer shell, wherein the light filter support is arranged on the inner shell; the infrared emission lamp is arranged at one end of the light filtering piece support, the infrared receiving lamp is arranged at the other end of the light filtering piece support, the circuit board is arranged on the light filtering piece support, and the infrared emission lamp and the infrared receiving lamp are connected with the circuit board; an inner shell is formed on the optical filter support in an injection molding mode, and the inner shell wraps an infrared emission lamp, an infrared receiving lamp, a part of a circuit board and a part of the optical filter support; and an outer shell is formed on the inner shell through injection molding, and the inner shell is wrapped by the outer shell.
Firstly, the filter support is formed by injection molding, then the infrared emission lamp, the infrared receiving lamp and the circuit board are mounted on the filter support, then the inner shell is formed by primary injection molding, and then the outer shell is formed by secondary injection molding. The inner shell wraps the infrared emission lamp, the infrared receiving lamp and the circuit board, and the outer shell wraps the whole inner shell, so that double-layer protection is formed, sealing performance and waterproof performance are greatly improved, and the service life of the groove-type photoelectric sensor is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of an embodiment of the present utility model;
fig. 2 is a block diagram of the cable removed according to the embodiment of the present utility model;
FIG. 3 is a block diagram of an outer housing, filter holder and inner housing provided in an embodiment of the present utility model;
FIG. 4 is a block diagram of a filter holder and an inner housing provided in an embodiment of the present utility model;
FIG. 5 is a block diagram of a filter holder, an infrared emission lamp, an infrared receiving lamp and a circuit board according to an embodiment of the present utility model;
FIG. 6 is an exploded view of a filter holder, an infrared emission lamp, an infrared receiving lamp and a circuit board of a valve body according to an embodiment of the present utility model;
fig. 7 is a block diagram of a filter support according to an embodiment of the present utility model.
Icon: 1-an outer shell; 101-a through hole; 2-a cable; 3-a filter holder; 301-supporting a plate; 302-risers; 303-hooking claw; 304-a first mount; 305-a first enclosure; 306-side claws; 307-a second mount; 4-an inner housing; 401-rectangular holes; 5-a circuit board; 6-infrared emission lamp; 601-a first pin; 7-infrared receiving lamp.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 7, an embodiment of the present utility model provides a slot type photoelectric sensor including a filter holder 3, an infrared emission lamp 6, an infrared receiving lamp 7, a circuit board 5, an inner case 4, and an outer case 1;
the infrared emission lamp 6 is arranged at one end of the filter support 3, the infrared receiving lamp 7 is arranged at the other end of the filter support 3, the circuit board 5 is arranged on the filter support 3, and the infrared emission lamp 6 and the infrared receiving lamp 7 are connected with the circuit board 5;
an inner shell 4 is formed on the filter support 3 in an injection molding way, and the inner shell 4 wraps an infrared emission lamp 6, an infrared receiving lamp 7, a part of the circuit board 5 and a part of the filter support 3;
the inner shell 4 is injection molded to form the outer shell 1, and the outer shell 1 wraps the inner shell 4.
The filter holder 3 is injection-molded, then the infrared emitting lamp 6, the infrared receiving lamp 7 and the circuit board 5 are mounted on the filter holder 3, then the inner housing 4 is injection-molded for the first time, and then the outer housing 1 is injection-molded for the second time. Like this inner shell 4 wraps up infrared emission lamp 6, infrared receiving lamp 7 and circuit board 5 in, and outer shell 1 wraps up whole inner shell 4 in again, forms double-deck protection for sealing performance and waterproof performance promote greatly, have improved slot type photoelectric sensor's life.
Preferably, as shown in fig. 5, 6 and 7, the filter holder 3 includes a support plate 301, a first mounting bracket 304 and a second mounting bracket 307;
the bottom of backup pad 301 is formed with the installation district, and first mounting bracket 304 is established perpendicularly in the top left side of backup pad 301, and second mounting bracket 307 is established perpendicularly in the top right side of backup pad 301, and circuit board 5 installs in the installation district, and infrared emission lamp 6 is installed on first mounting bracket 304, and infrared receiving lamp 7 is installed on second mounting bracket 307.
Further, the supporting plate 301 includes a rectangular frame, a vertical plate 302 and a hook claw 303, two side ends of the rectangular frame are respectively provided with a hook claw 303, the hook claw 303 is in an L shape, one end of the hook claw 303 is connected to the left side surface of the rectangular frame, one end of the other hook claw 303 is connected to the right side surface of the rectangular frame, the two hook claws 303 are symmetrically arranged with respect to the rectangular frame, two vertical plates 302 are arranged, two vertical plates 302 are respectively arranged on the opposite front and back surfaces of the rectangular frame, the upper surface of each vertical plate 302 is flush with the upper surface of the rectangular plate, the lower surface of each vertical plate 302 is lower than the lower surface of the rectangular frame, the lower surface of each hook claw 303 is lower than the lower surface of the rectangular frame, the lower surface of each vertical plate 302 is flush with the lower surface of each hook claw 303, a mounting area is formed between the two hook claws 303, and the circuit board 5 is mounted in the mounting area.
Further, the shape, structure and size of the first mounting frame 304 and the second mounting frame 307 are all identical, and this only uses the first mounting frame 304 as an illustration, specifically, the first mounting frame 304 includes a rectangular block, a groove is formed on the left side surface of the rectangular block to form a first surrounding cavity 305, the groove is matched with the infrared emission lamp 6, the infrared emission lamp 6 can be embedded into the groove, a side claw 306 is disposed in front and back of the rectangular block, the cross section of the side claw 306 is L-shaped, and the side claw 306 limits the infrared emission lamp 6.
Optionally, a connecting rod is arranged in the middle of the rectangular frame, and the connecting rod is arranged in the middle to strengthen the strength of the rectangular frame.
In addition, as shown in fig. 6, a bump is formed on the right side surface of the first mounting frame 304 and the left side surface of the second mounting frame 307, a circular groove is formed on the left side surface of the first mounting frame 304, a circular groove is also formed on the right side surface of the second mounting frame 307, the circular groove is matched with the infrared emission lamp 6 and the lamp cap on the infrared receiving lamp 7, and the bump is opposite to the circular groove, that is, the bump is opposite to the infrared emission lamp 6 and the lamp cap on the infrared receiving lamp 7.
Preferably, as shown in fig. 5, two first pins 601 are arranged at the bottom of the infrared emission lamp 6, a hook claw 303 on the left side is positioned between the two first pins 601, two welding points are arranged on the left side of the circuit board 5, the two first pins 601 are in spot welding connection with the two welding points on the left side, similarly, two second pins are arranged at the bottom of the infrared receiving lamp 7, the second pins are in phase connection with the two welding points on the right side of the circuit board 5, and the welding points are PCB bonding pads.
Preferably, after the infrared emission lamp 6, the infrared receiving lamp 7 and the circuit board 5 are mounted on the filter support 3, the filter support 3 is put on a mold to be molded to form the inner shell 4, as shown in fig. 4, the inner shell 4 completely wraps the whole infrared emission lamp 6 and the infrared receiving lamp 7, and then, referring to fig. 4, a rectangular hole 401 is formed at the bottom of the inner shell 4, the rectangular hole 401 is reserved for connecting copper wires in the cable 2 with the circuit board 5, a plurality of bonding pads are mounted on the lower surface of the circuit board 5, and the lower surface of the circuit board 5 is contacted with the rectangular hole 401, namely, the circuit board 5 can be seen from the rectangular hole 401, so that when the cable 2 is connected, only the copper wires of the cable 2 are required to pass through the rectangular hole 401 to be connected with the bonding pads on the circuit board 5.
Further, the inner housing 4 only wraps the left part of the first mounting frame 304, and the right part does not wrap the left part, because the filter support 3 is waterproof, only the infrared emission lamp 6 needs to be protected, and the inner housing 4 and the first mounting frame 304 wrap the whole infrared emission lamp 6, so that water is prevented from contacting the infrared emission lamp 6. Likewise, the inner housing 4 only encloses the right portion of the second mounting bracket 307, while the left portion of the second mounting bracket 307 is also exposed.
Preferably, after the connection of the cable 2 and the circuit board 5 is completed, the inner case 4 is put into a mold for the secondary injection molding to form the outer case 1. As shown in fig. 2, the outer case 1 has two rectangular covers, and through holes 101 are formed on the inner sides of the rectangular covers, respectively, and the through holes 101 are matched with the projections on the filter holder 3.
A through hole is formed between the bottoms of the two rectangular covers, through which the surface of the inner case 4 located above the circuit board 5 is exposed to the outside.
Preferably, the filter support 3 is a light-transmitting support, the inner housing 4 is a semitransparent housing, the inner housing 4 is a semitransparent red encapsulation of the low-temperature PC, and the outer housing 1 is a light-shielding outer housing which is a black ABS encapsulation.
The infrared emission lamp 6 emits infrared light, the infrared light passes through the first mounting frame 304 and passes out from the protrusion on the first mounting frame 304, then the infrared light enters the outside and enters the second mounting frame 307 from the protrusion on the second mounting frame 307, and finally irradiates the infrared receiving lamp 7.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct or indirect through an intermediate medium, or may be internal to two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The groove-type photoelectric sensor is characterized by comprising a light filter support (3), an infrared emission lamp (6), an infrared receiving lamp (7), a circuit board (5), an inner shell (4) and an outer shell (1);
the infrared emission lamp (6) is arranged at one end of the light filter support (3), the infrared receiving lamp (7) is arranged at the other end of the light filter support (3), the circuit board (5) is arranged on the light filter support (3), and the infrared emission lamp (6) and the infrared receiving lamp (7) are connected with the circuit board (5);
the inner shell (4) is formed on the optical filter support (3) in an injection molding mode, and the inner shell (4) wraps the infrared emission lamp (6), the infrared receiving lamp (7), a part of the circuit board (5) and a part of the optical filter support (3);
the outer shell (1) is formed on the inner shell (4) in an injection molding mode, and the outer shell (1) wraps the inner shell (4).
2. A slot-type photoelectric sensor according to claim 1, wherein the filter holder (3) comprises a support plate (301), a first mount (304) and a second mount (307);
the bottom of backup pad (301) is formed with the installation zone, first mounting bracket (304) are established perpendicularly top one side of backup pad (301), second mounting bracket (307) are established perpendicularly the top opposite side of backup pad (301), circuit board (5) are installed in the installation zone, infrared emission lamp (6) are installed on first mounting bracket (304), infrared receiving lamp (7) are installed on second mounting bracket (307).
3. The groove-type photoelectric sensor according to claim 2, wherein the supporting plate (301) comprises a rectangular frame, vertical plates (302) and hooking claws (303), one hooking claw (303) is respectively arranged at two opposite side ends of the rectangular frame, one vertical plate (302) is respectively arranged at the front side and the back side of the rectangular frame, the lower surfaces of the vertical plates (302) and the hooking claws (303) are lower than the lower surface of the rectangular frame, and the installation area is formed between the two hooking claws (303) of the two vertical plates (302).
4. A trough-type photoelectric sensor according to claim 3, characterized in that the first mounting frame (304) and the second mounting frame (307) are identical in structure, a first enclosing cavity (305) is formed on one side of the first mounting frame (304), the infrared emitting lamp (6) is mounted in the first enclosing cavity (305), a second enclosing cavity is formed on one side of the second mounting frame (307), and the infrared receiving lamp (7) is mounted in the second enclosing cavity.
5. The groove-type photoelectric sensor according to claim 4, wherein a first pin (601) is arranged at the bottom of the infrared emission lamp (6), the first pin (601) is connected with a bonding pad on the circuit board (5), and a second pin is arranged at the bottom of the infrared receiving lamp (7) and is connected with the bonding pad on the circuit board (5).
6. A slot-type photoelectric sensor according to claim 2, further comprising a cable (2), wherein a rectangular hole (401) is formed in the bottom of the inner case (4), the rectangular hole (401) is located right under the circuit board (5), copper wires of the cable (2) pass through the rectangular hole (401) to be connected with pads on the circuit board (5), and the outer case (1) wraps the rectangular hole (401).
7. A trough-type photoelectric sensor according to claim 2, characterized in that the inner housing (4) encloses the support plate (301), the lower half of the first mounting frame (304), the lower half of the second mounting frame (307), an infrared emitting lamp (6) and an infrared receiving lamp (7).
8. A slot-type photoelectric sensor according to claim 3, wherein the first mounting frame (304) and the second mounting frame (307) are each formed with a bump on an inner side surface thereof, and the outer housing (1) is formed with two through holes (101) matching with the bumps.
9. A trough-type photoelectric sensor according to any one of claims 1-8, characterized in that the filter holder (3) is a light-transmitting holder.
10. A trench type photoelectric sensor according to any one of claims 1 to 8, wherein said inner housing (4) is a translucent housing, and said outer housing (1) is a light shielding outer housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322032007.9U CN220322407U (en) | 2023-07-31 | 2023-07-31 | Groove-type photoelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322032007.9U CN220322407U (en) | 2023-07-31 | 2023-07-31 | Groove-type photoelectric sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220322407U true CN220322407U (en) | 2024-01-09 |
Family
ID=89422917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322032007.9U Active CN220322407U (en) | 2023-07-31 | 2023-07-31 | Groove-type photoelectric sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220322407U (en) |
-
2023
- 2023-07-31 CN CN202322032007.9U patent/CN220322407U/en active Active
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