CN218723938U - Infrared angle sensor - Google Patents
Infrared angle sensor Download PDFInfo
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- CN218723938U CN218723938U CN202222846938.8U CN202222846938U CN218723938U CN 218723938 U CN218723938 U CN 218723938U CN 202222846938 U CN202222846938 U CN 202222846938U CN 218723938 U CN218723938 U CN 218723938U
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- angle sensor
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Abstract
The utility model relates to an optical sensor technical field discloses an infrared angle sensor. The infrared angle sensor comprises an opposite type photoelectric sensor, a swing arm and a lightproof shell, wherein the swing arm is positioned below the opposite type photoelectric sensor and comprises a light screen, a rotating shaft and a balancing weight which are sequentially arranged, and the light screen is shielded between an infrared emitter and an infrared receiver of the opposite type photoelectric sensor and can change the shielding area along with the swinging of the balancing weight; the correlation type photoelectric sensor and the swing arm are both positioned in the shell. The infrared angle sensor provided by the utility model is provided with the light screen between the infrared transmitter and the infrared receiver, and the light screen is driven by the balancing weight to swing, so that the total amount of infrared light received by the infrared receiver is changed, and the measurement of the inclination angle is realized; and the swing direction of the balancing weight and the light screen is limited through the rotating shaft, so that the light screen serving as the light shielding piece is prevented from being influenced by multi-angle change, and the accuracy of inclination angle measurement is ensured.
Description
Technical Field
The utility model relates to an optical sensor technical field especially relates to an infrared angle sensor.
Background
With the development of automation technology, in construction machinery, robots, medical instruments, portable electronic devices and other equipment, angle data are often required to be acquired on site in time, and an inclination angle sensor is an industrial field detection device commonly used for acquiring angle data.
In the prior art, devices for measuring an inclination angle by using a linear transmission characteristic of light have appeared, for example, as disclosed in a patent-a photoelectric inclination sensor-CN 202121861534.5, a shielding member rolls at the bottom of an inverted cone-shaped groove, and the inclination angle is measured by the change of light rays injected into a light through hole at the bottom of the groove.
However, when a plurality of directions are simultaneously converted, output signals in a plurality of directions change, and the angle change in a specific direction cannot be stably recognized, which may cause false alarm, or the like.
SUMMERY OF THE UTILITY MODEL
Based on the foregoing, an object of the utility model is to provide an infrared angle sensor for improve inclination measuring accuracy.
To achieve the purpose, the utility model adopts the following technical proposal:
an infrared angle sensor, comprising:
the device comprises a correlation type photoelectric sensor, a photoelectric sensor and a control unit, wherein the correlation type photoelectric sensor comprises an infrared emitter and an infrared receiver which are oppositely arranged;
the swinging arm is positioned below the correlation type photoelectric sensor and comprises a light screen, a rotating shaft and a balancing weight which are sequentially arranged, the light screen can rotate around the axis of the rotating shaft, and the light screen is shielded between the infrared emitter and the infrared receiver and can change the shielding area along with the swinging of the balancing weight;
the opposite type photoelectric sensor and the swing arm are both positioned in the shell.
As an alternative to the infrared angle sensor, the direction of oscillation of the shutter plate is perpendicular to the direction in which the infrared emitter emits infrared rays.
As an alternative of the infrared angle sensor, the rotating shaft is arranged in the middle of the light screen, one end of the light screen is fixedly connected with the balancing weight, and the other end of the light screen protrudes out of the rotating shaft and extends to a position between the infrared emitter and the infrared receiver.
As an alternative of the infrared angle sensor, the infrared angle sensor further comprises an inner shell, a storage groove is formed in the inner shell, a middle seam is formed in the bottom of the storage groove, the infrared emitter and the infrared receiver are arranged in the storage groove and are respectively arranged on two sides of the middle seam, and the light shielding plate stretches into the middle seam.
As an alternative of the infrared angle sensor, shaft sleeves are arranged on two sides of the bottom of the inner shell, and two ends of the rotating shaft are inserted into the shaft sleeves.
As an alternative of the infrared angle sensor, the rotating shaft includes a thick shaft and a thin shaft, and the thin shaft is inserted into the shaft sleeve; and a connecting block is fixed between the coarse shaft and the counterweight block.
As an alternative to the infrared angle sensor, the infrared angle sensor further includes a circuit board electrically connected to the infrared emitter and the infrared receiver; the circuit board is arranged in the object placing groove.
As an alternative to the infrared angle sensor, the housing includes a body and a top cover, and the top cover is buckled at the opening end of the body;
the inner wall of the outer shell is provided with a clamping table, and the inner shell is clamped on the clamping table.
As an alternative to the infrared angle sensor, the top cover is formed by epoxy resin filling.
As an alternative to the infrared angle sensor, the housing is provided with a fitting hole.
The utility model has the advantages that:
1. the utility model provides an infrared angle sensor sets up the light screen between infra-red transmitter and infrared receiver, drives the light screen swing by the balancing weight, changes infrared receiver received infrared light total amount to the realization is to the measurement at inclination, simple structure, small in size, the practicality is strong.
2. The utility model provides an infrared angle sensor, the swing direction of balancing weight and light screen is injectd through the pivot, can avoid receiving the influence that the multi-angle changes as the light screen of light shielding piece to guarantee inclination measuring accuracy.
Drawings
Fig. 1 is an exploded view of an infrared angle sensor provided by the present invention;
fig. 2 is a schematic diagram of an internal structure of the infrared angle sensor provided by the present invention;
fig. 3 is a schematic diagram of the internal structures of the swing arm and the inner shell of the infrared angle sensor provided by the present invention;
fig. 4 is a schematic structural diagram of an inner shell of the infrared angle sensor provided by the present invention;
fig. 5 is a schematic structural diagram of a housing of the infrared angle sensor provided by the present invention;
fig. 6 is the utility model provides an infrared angle sensor's overall structure schematic diagram.
In the figure:
10-a housing; 11-a body; 111-clamping table; 12-a top cover; 13-assembly holes;
20-an electrical wire;
30-an inner shell; 31-middle seam; 32-shaft sleeve; 33-a storage groove; 34-a baffle plate; 341-light through port;
40-swing arm; 41-a rotating shaft; 411-thin shaft; 412-coarse axis; 42-a visor; 43-a counterweight block; 44-connecting block;
50-correlation type photoelectric sensor; 51-a circuit board; 52-an infrared emitter; 53-Infrared receiver.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
This embodiment provides an infrared angle sensor, this infrared angle sensor is provided with correlation type photoelectric sensor to set up the light screen between correlation type photoelectric sensor's infrared emitter and infrared receiver, drive the light screen by the balancing weight and revolute the axle and carry out the bidirectional swinging, in order to solve current photoelectric type tilt sensor, when sheltering from light and measuring the inclination size through the roll formula shielding member, easily receive a plurality of direction output signal's influence, lead to the sensor wrong report, the problem of missing reporting.
Fig. 1 is an exploded view of an infrared angle sensor provided by the present invention, and referring to fig. 1, the infrared angle sensor provided by the present embodiment includes an opposite type photoelectric sensor 50, a swing arm 40 and a light-tight housing 10, wherein the opposite type photoelectric sensor 50 includes an infrared emitter 52 and an infrared receiver 53 which are oppositely disposed; the swing arm 40 is located below the correlation photoelectric sensor 50, and comprises a light shielding plate 42, a rotating shaft 41 and a balancing weight 43 which are sequentially arranged, wherein the light shielding plate 42 can rotate around the axis of the rotating shaft 41, and the light shielding plate 42 is shielded between an infrared emitter 52 and an infrared receiver 53 and can change the shielding area along with the swing of the balancing weight 43; the opposite type photoelectric sensor 50 and the swing arm 40 are both located within the housing 10.
In the infrared angle sensor provided by the embodiment, the light screen 42 is arranged between the infrared emitter 52 and the infrared receiver 53, and the balancing weight 43 drives the light screen 42 to swing, so that the total amount of infrared light received by the infrared receiver 53 is changed, and thus, the measurement of the inclination angle is realized, the structure is simple, the size is small, and the practicability is high; and the swing direction of the balancing weight 43 and the light screen 42 is limited by the rotating shaft 41, so that the light screen 42 serving as a light ray shielding piece can be prevented from being influenced by multi-angle change, and the accuracy of dip angle measurement is ensured.
Fig. 2 is the utility model provides an infrared angle sensor's inner structure schematic diagram, refer to fig. 1 and fig. 2 and show, the infrared angle sensor that this embodiment provided still includes inner shell 30, this inner shell 30 is the trough-shaped, and the tank bottom is equipped with centre joint 31, infra-red transmitter 52 and infrared receiver 53 set up in inner shell 30, and divide and locate the both sides of centre joint 31, the infrared light that infra-red transmitter 52 launched sends infra-red receiver 53 through centre joint 31, light screen 42 stretches into in the centre joint 31, the infrared light that blocks infra-red transmitter 52 transmission sends infra-red receiver 53 through centre joint 31, make infra-red receiver 53's output signal change, thereby realize the measurement at inclination.
Two sides of the bottom of the inner shell 30 are provided with shaft sleeves 32, and two ends of the rotating shaft 41 are respectively inserted into the two shaft sleeves 32. Further, in the present embodiment, the axial direction of the two bushings 32 is parallel to the direction of infrared ray emitted from the infrared emitter 52, and the light shielding plate 42 is disposed perpendicular to the axis of the rotating shaft 41, so that the swinging direction of the light shielding plate 42 is perpendicular to the direction of infrared ray emitted from the infrared emitter 52 to ensure the sensitivity of tilt angle measurement.
Fig. 3 is the utility model provides an infrared angle sensor's swing arm 40 and inner shell 30 internal structure schematic diagram, it is shown with reference to fig. 3, provide a swing arm 40's connected mode in this embodiment, it is specific, pivot 41 sets up perpendicularly in light screen 42's middle part, light screen 42's one end and balancing weight 43 fixed connection, light screen 42's other end protrusion in pivot 41 to extend to between infra-red transmitter 52 and the infra-red receiver 53. More specifically, in the present embodiment, at least one of the rotating shaft 41 and the shaft sleeve 32, and the rotating shaft 41 and the light shielding plate 42 are rotatably connected; preferably, the rotating shaft 41 and the shaft sleeve 32, and the rotating shaft 41 and the light shielding plate 42 are rotatably connected to ensure the flexibility of swinging the light shielding plate 42.
Preferably, in this embodiment, the rotating shaft 41 includes a thick shaft 412 and a thin shaft 411, the thin shaft 411 is inserted into the shaft sleeve 32, and the thick shaft 412 is provided to enhance the mechanical strength of the rotating shaft 41. The thick shaft 412 and the thin shaft 411 can be connected in a sleeved or end-fixed manner as required, and can be connected with the light screen 42 in an inserted or end-fixed manner as required during sleeved connection. Further, in the embodiment, a connecting block 44 is fixed between the thick shaft 412 and the weight block 43, and the connecting block 44 can also be fixedly connected with the light shielding plate 42, so as to improve the mechanical strength of the structure.
The infrared angle sensor provided by this embodiment further includes a circuit board 51, the infrared emitter 52 and the infrared receiver 53 are electrically connected and mounted on the circuit board 51, and the circuit board 51, the infrared emitter 52 and the infrared receiver 53 are integrally placed in the placement groove 33 of the inner housing 30.
Fig. 4 is a schematic structural view of the inner shell 30 of the infrared angle sensor provided by the present invention, and referring to fig. 4, in this embodiment, baffles 34 are disposed on two sides of the middle seam 31 at the bottom of the storage slot 33, and a light-passing opening 341 for passing infrared rays is formed in the middle of the baffle 34; the height of the baffle 34 is lower than the depth of the storage groove 33, during assembly, the infrared emitter 52 and the infrared receiver 53 are respectively arranged on the opposite sides of the two baffles 34, and the circuit board 51 is arranged on the baffles 34.
Fig. 5 is a schematic structural view of the outer shell 10 of the infrared angle sensor provided by the present invention, referring to fig. 5, in this embodiment, a clamping platform 111 is provided on the inner wall of the outer shell 10, and the inner shell 30 can be clamped on the clamping platform 111 by a clamping plate protruding from the outer edge thereof. Of course, in other embodiments, the inner shell 30 may be fixed to the outer shell 10 by other means.
Fig. 6 is the utility model provides an infrared angle sensor's overall structure schematic diagram, it is shown with reference to fig. 6, in this embodiment, shell 10 is formed by the equipment of body 11 and top cap 12, and top cap 12 detains the open end of locating body 11 to in correlation type photoelectric sensor 50 and swing arm 40's installation. The housing 10 is provided with a fitting hole 13 for fitting it to an object to be measured.
Preferably, in this embodiment, the top cover 12 is formed by filling epoxy resin, that is, in assembly, after the rotating shaft 41 is installed in the shaft sleeve 32 of the inner casing 30, the circuit board 51 with the electric wire 20 and the opposite type photoelectric sensor 50 mounted and welded are placed in the placing groove 33 of the inner casing 30, the assembled semi-finished product is placed on the clamping table 111 of the outer casing 10, and the groove structure formed by the inner casing 30, the circuit board 51 and the outer casing 10 is fully filled with epoxy resin, so as to completely seal the internal structure of the body 11.
Note: the fixing means not explicitly described herein may be a conventional fixing means such as a screw connection, a welding or an adhesive connection, as required.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements, and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. Infrared angle sensor, its characterized in that includes:
a correlation type photoelectric sensor (50), wherein the correlation type photoelectric sensor (50) comprises an infrared emitter (52) and an infrared receiver (53) which are oppositely arranged;
the swing arm (40) is positioned below the correlation type photoelectric sensor (50) and comprises a light shielding plate (42), a rotating shaft (41) and a balancing weight (43) which are sequentially arranged, the light shielding plate (42) can rotate around the axis of the rotating shaft (41), and the light shielding plate (42) is shielded between the infrared emitter (52) and the infrared receiver (53) and can change the shielding area along with the swing of the balancing weight (43);
a light-tight housing (10), the correlation photosensor (50) and the swing arm (40) both being located within the housing (10).
2. The infrared angle sensor as set forth in claim 1, characterized in that the swinging direction of the shade (42) is perpendicular to the direction in which the infrared emitter (52) emits infrared rays.
3. The infrared angle sensor as set forth in claim 1, wherein the rotating shaft (41) is disposed in the middle of the visor (42), one end of the visor (42) is fixedly connected to the weight block (43), and the other end of the visor (42) protrudes from the rotating shaft (41) and extends between the infrared emitter (52) and the infrared receiver (53).
4. The infrared angle sensor according to claim 1, further comprising an inner housing (30), wherein a storage slot (33) is formed in the inner housing (30), a central slit (31) is formed in a bottom of the storage slot (33), the infrared emitter (52) and the infrared receiver (53) are disposed in the storage slot (33) and are disposed at two sides of the central slit (31), and the light shielding plate (42) extends into the central slit (31).
5. The infrared angle sensor as set forth in claim 4, characterized in that bosses (32) are provided on both sides of the bottom of the inner case (30), and both ends of the rotary shaft (41) are inserted into the bosses (32).
6. The infrared angle sensor according to claim 5, characterized in that the rotary shaft (41) comprises a thick shaft (412) and a thin shaft (411), the thin shaft (411) being inserted in the shaft sleeve (32); a connecting block (44) is fixed between the thick shaft (412) and the balancing weight (43).
7. The infrared angle sensor according to claim 4, characterized by further comprising a circuit board (51), the circuit board (51) being electrically connected with the infrared emitter (52) and the infrared receiver (53); the circuit board (51) is arranged in the storage groove (33).
8. The infrared angle sensor as set forth in claim 4, characterized in that the housing (10) comprises a body (11) and a top cover (12), the top cover (12) being snap-fitted to an open end of the body (11);
be provided with on the inner wall of shell (10) card platform (111), inner shell (30) card is located card platform (111) are last.
9. The infrared angle sensor as set forth in claim 8, characterized in that the top cover (12) is formed by epoxy resin filling.
10. The infrared angle sensor as claimed in claim 1, characterized in that a fitting hole (13) is provided on the housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222846938.8U CN218723938U (en) | 2022-10-27 | 2022-10-27 | Infrared angle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222846938.8U CN218723938U (en) | 2022-10-27 | 2022-10-27 | Infrared angle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218723938U true CN218723938U (en) | 2023-03-24 |
Family
ID=85592443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222846938.8U Active CN218723938U (en) | 2022-10-27 | 2022-10-27 | Infrared angle sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218723938U (en) |
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2022
- 2022-10-27 CN CN202222846938.8U patent/CN218723938U/en active Active
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