Photoelectric sensor

Abstract

The utility model relates to the technical field of sensors, in particular to a photoelectric sensor, which comprises a protective shell and a side cover inserted into the left side of the protective shell, a sealing plate is arranged on the right end face of the side cover, a circuit board is arranged on the right side face of the sealing plate, a controller is arranged on the circuit board close to the rear end, and a photoreceptor and a light emitter are sequentially arranged on the right side face of the circuit board from top to bottom. A transparent plate is arranged on the front end face of the protective shell, a mounting groove is formed in the left end face of the protective shell corresponding to the side cover, an annular groove is formed in the bottom of the mounting groove, and a rubber pad is arranged on the side cover corresponding to the annular groove; according to the photoelectric sensor, the side cover and the protective shell are arranged to be matched in an inserted mode, the sealing performance of the side cover and the protective shell is improved under the cooperation of a sealing plate and a rubber pad, external water drops are prevented from permeating into the interior from connecting gaps, the overall waterproof performance is improved, a circuit board is installed on the inner wall of the side cover, and under the cooperation of a controller, an illuminator and a photoreceptor, the waterproof performance is improved. Corresponding light beam capture detection is realized, and an optical signal is converted into a bit electric signal for use.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field, concretely is a kind of photoelectric sensor. BACKGROUND

[0002] Photoelectric sensor is the device that light signal is converted into electric signal, its working principle is based on photoelectric effect, photoelectric effect is the phenomenon that the electron of some material absorbs the energy of photon and occurs corresponding electric effect when light irradiates on the material;

[0003] The utility model discloses a photoelectric sensor in the utility model discloses a photoelectric sensor, and the first installation cavity and the second installation cavity that interval are equipped on the light isolation plate, and the light emitting device is connected with the PCB board, and the light emitting device is inserted into the first installation cavity on the side of the back to the PCB board, and the photosensitive device is installed on the PCB board on the side of the back to the upper cover, and the photosensitive device is inserted into the second installation cavity on the side of the back to the PCB board, and the first installation cavity is equipped with the first opening on the end close to the upper cover, and the second installation cavity is equipped with the second opening on the end close to the upper cover, and the light emitting device and the photosensitive device are electrically connected with the PCB board respectively, and the light emitted by the light emitting device is emitted to the outside world through the first opening and the upper cover, and after being reflected by external object, is received by the photosensitive device through the upper cover and the second opening;

[0004] The above technical scheme, under the block of light isolation plate, the light emitted by the light emitting device is blocked in the first installation cavity, and will not interfere with and influence the photosensitive device, avoids the interference of the photosensitive device from internal light emitting device, reduces misjudgment;But the gap between shell and cover of photoelectric sensor is big, and external dust and water droplets can easily penetrate into, it does not have waterproofness, and after internal element is damaged, it is not convenient to disassemble and overhaul cooperation. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of photoelectric sensor to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of photoelectric sensor, including the side cover of protection shell and protection shell left side plug-in, the sealing plate is equipped on the right end surface of side cover, the circuit board is equipped on the right side surface of sealing plate, the controller is equipped on the circuit board near rear end, the photosensitive device and light emitting device are sequentially equipped on the right side surface of circuit board from top to bottom, the transparent plate is equipped on the front end surface of protection shell, the installation slot is set up in the corresponding place of side cover on the left end surface of protection shell, the annular groove is set up in the bottom of installation slot, and the rubber pad is set up in the corresponding place of annular groove on the side cover.

[0008] Further, the bottom of the protective shell is provided with an insulating pad, the bottom of the protective shell is provided with a sealing washer near the rear end, the sealing washer is provided with a detachable connecting wire, and the connecting wire is electrically connected with the circuit board.

[0009] In the utility model, under the cooperation of the insulating pad, the bottom of the protective shell is fixed on the electrical device which needs to be installed, the damage of the conductive pair to the internal elements of the protective shell is reduced, under the cooperation of the sealing washer, the connecting wire is conveniently penetrated, the influence of the external water drops or dust on the inside is reduced, and the sealing property of the inside is increased.

[0010] Specifically, the sealing washer is adhesively fixed with the protective shell, the top of the insulating pad is adhesively fixed with the bottom of the protective shell, the two side edges of the insulating pad are symmetrically provided with fixed protrusions, and the fixed protrusions and the insulating pad are integrally formed.

[0011] In the utility model, the sealing washer is adhesively cooperated with the protective shell, the combination stability is increased, a plurality of fixed protrusions are cooperated with fixed holes, the external screw is helped to pass through the fixed hole, the overall installation and fixation are realized, and the stability of independent installation is increased.

[0012] It should be noted that the side cover outer wall is provided with a hidden pull handle, screw holes are symmetrically formed in the upper and lower ends of the side cover, flat head screws are arranged in the screw holes, and counterbores are formed in the upper and lower end faces of the protective shell and correspond to the screw holes.

[0013] In the utility model, under the cooperation of the hidden pull handle, a force point is provided, the side cover is helped to open or install, the flat head screw passes through the counterbores and is threadedly connected with the screw holes, the side cover and the protective shell are stably installed, and the combination stability is increased.

[0014] Further, the width of the side cover outer wall is adapted to the width of the installation groove inner wall, the sealing plate is adhesively fixed with the side cover, the width of the sealing plate outer wall is adapted to the width of the protective shell inner wall, the rubber pad is adhesively fixed with the side cover, and the width of the rubber pad outer wall is adapted to the width of the annular groove inner wall.

[0015] In the utility model, under the cooperation of the sealing plate and the protective shell, the tightness of the side cover and the protective shell is increased, the internal space is less affected by the external environment, the rubber pad and the annular groove are cooperated, the sealing property of the side cover and the protective shell is further increased, and the external water drops are less likely to enter the inside and corrode the internal elements.

[0016] It is worth supplementing that the circuit board is fixedly connected with the sealing plate through screws, the controller is cooperated with the corresponding terminal hole on the circuit board through a pin and is fixedly welded, and the light emitter and the light sensor are cooperated with the corresponding terminal hole on the circuit board through a pin and are fixedly welded.

[0017] The utility model discloses, under the cooperation of luminous ware and photosensitive ware, the light beam is sent out by laser diode in the inside of luminous ware, and the inside of photosensitive ware is by photodiode, and photodiode has high sensitivity to the intensity and wavelength of light, when the light beam sent out by luminous ware meets different objects or environment, such as being blocked or reflecting by target object, will produce intensity change, deflection etc., and photosensitive ware will capture these changing light signals, and the light signal captured is converted into electric signal, and the electric signal is sent to controller and is handled, and then realizes corresponding control and detection cooperation.

[0018] Further, the transparent plate is bonded and fixed with the protective shell around, and the transparent plate corresponds with the front end face of the luminous ware and the photosensitive ware.

[0019] In the utility model, the transparent plate is made of glass material, which is helpful for corresponding light beam to pass through and capture.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] 1. The utility model discloses a side cover and a protective shell are inserted and connected, and the sealing property of the side cover and the protective shell is increased under the cooperation of the sealing plate and the rubber pad, so that water droplets from the outside can not penetrate into the inside through the connecting gap, the overall waterproof property is improved, the circuit board is installed on the inner wall of the side cover, and under the cooperation of the controller, the luminous ware and the photosensitive ware, corresponding light beam capture detection is realized, and the light signal is converted into an electric signal.

[0022] 2. The utility model discloses a sealing washer and connecting wire cooperation, realize internal circuit board and external electrical appliance electric connection, increase the density between connecting wire and protective shell, reduce the influence of water droplet penetration, the cooperation of insulating pad and fixed lug reduces the influence of the conductive part installed at the bottom of the protective shell on the internal elements, and the external screw passes through the fixed lug to realize overall position fixing. DRAWINGS

[0023] Figure 1 It is the overall structure schematic diagram of the utility model;

[0024] Figure 2 It is the overall bottom view schematic diagram of the utility model;

[0025] Figure 3 It is the side cover and protective shell combination structure schematic diagram of the utility model;

[0026] Figure 4 It is the side cover frame structure schematic diagram of the utility model;

[0027] Figure 5 It is the protective shell structure schematic diagram of the utility model.

[0028] The meaning of each mark in the drawing is as follows:

[0029] 1, protective shell; 10, transparent plate; 11, mounting groove; 110, annular groove; 12, counterbore; 13, sealing washer;

[0030] 2, side cover; 20, invisible pull handle; 21, sealing plate; 22, circuit board; 220, controller; 221, light emitter; 222, light sensor; 23, rubber pad; 24, screw hole; 240, flat head screw;

[0031] 3, insulating pad; 30, fixing protrusion. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Please refer to Figures 1-5 The embodiment provides a technical scheme:

[0034] An optoelectronic sensor comprises a protective shell 1 and a side cover 2 inserted on the left side of the protective shell 1, the outer wall of the side cover 2 is provided with an invisible pull handle 20, screw holes 24 are symmetrically formed on the upper and lower ends of the side cover 2, flat head screws 240 are arranged in the screw holes 24, and counterbores 12 are formed on the upper and lower end faces of the protective shell 1 and correspond to the screw holes 24.

[0035] In the utility model, the invisible pull handle 20 provides a force point, which helps to open or install the side cover 2, and the flat head screws 240 pass through the counterbores 12 and are threadedly connected with the screw holes 24, so that the side cover 2 is stably installed on the protective shell 1, and the stability of the combination is improved.

[0036] Further, the sealing plate 21 is arranged on the right end face of the side cover 2, the circuit board 22 is arranged on the right side face of the sealing plate 21, the width of the outer wall of the side cover 2 is adapted to the width of the inner wall of the mounting groove 11, the sealing plate 21 is adhesively fixed to the side cover 2, the width of the outer wall of the sealing plate 21 is adapted to the width of the inner wall of the protective shell 1, the rubber pad 23 is adhesively fixed to the side cover 2, and the width of the outer wall of the rubber pad 23 is adapted to the width of the inner wall of the annular groove 110.

[0037] In the utility model, the sealing plate 21 is inserted and matched with the protective shell 1, so that the tightness of the side cover 2 and the protective shell 1 is improved, the internal space is less affected by the external environment, the rubber pad 23 is inserted and matched with the annular groove 110, so that the sealing property of the side cover 2 and the protective shell 1 is further improved, and the external water drops are less likely to enter the internal space and corrode the internal components.

[0038] Specific, the line board 22 is equipped with the controller 220 near the rear end, the line board 22 right side is sequentially equipped with photosensor 222 and luminous ware 221 from top to bottom, the line board 22 is fixedly connected with sealing plate 21 by screw, the controller 220 is inserted and is matched with the corresponding terminal hole on the line board 22 by lead, and is welded and fixed, and luminous ware 221 and photosensor 222 are inserted and matched with the corresponding terminal hole on the line board 22 by lead, and are welded and fixed.

[0039] In the utility model, under the cooperation of luminous ware 221 and photosensor 222, the light beam is emitted by laser diode inside luminous ware 221, and the inside of photosensor 222 is by photodiode, and photodiode has high sensitivity to the intensity and wavelength of light, when the light beam emitted by luminous ware 221 meets different objects or environment, such as being blocked or reflected by target object, intensity change, deflection, etc., photosensor 222 can capture the changing light signal, the captured light signal is converted into electrical signal, and the electrical signal is sent to controller 220 for processing, and then corresponding control and detection cooperation are realized.

[0040] Secondly, the front end surface of the protective shell 1 is provided with a transparent plate 10, the transparent plate 10 is fixedly bonded around the protective shell 1, and the transparent plate 10 corresponds to the front end surface of the luminous ware 221 and the photosensor 222.

[0041] In the utility model, the transparent plate 10 is made of glass material, which is helpful for corresponding light beam to pass through and capture cooperation.

[0042] It should be noted that the mounting groove 11 is formed on the left end surface of the protective shell 1 corresponding to the side cover 2, the annular groove 110 is formed in the bottom of the mounting groove 11, and the rubber pad 23 is arranged on the side cover 2 corresponding to the annular groove 110.

[0043] Further, the bottom of the protective shell 1 is provided with an insulating pad 3, the bottom of the protective shell 1 is provided with a sealing gasket 13 near the rear end, the sealing gasket 13 is provided with a detachable connecting wire, and the connecting wire is electrically connected with the line board 22.

[0044] In the utility model, under the cooperation of the insulating pad 3, the bottom of the protective shell 1 is fixed on the electrical device to be installed, the conductive damage to the internal elements of the protective shell 1 is reduced, under the cooperation of the sealing gasket 13, the connecting wire is conveniently penetrated, the external water droplets or dust are prevented from entering the inside, and the sealing property of the inside is improved.

[0045] Specifically, the sealing gasket 13 is fixedly bonded with the protective shell 1, the top of the insulating pad 3 is fixedly bonded with the bottom of the protective shell 1, the two side edges of the insulating pad 3 are symmetrically provided with fixed protrusions 30, and the fixed protrusions 30 and the insulating pad 3 are integrally formed.

[0046] The sealing washer 13 is adhesively connected with the protective shell 1, the combination stability is increased, the fixing protrusions 30 are all matched with the fixing holes, the external screw is helped to pass through the fixing hole, the overall installation and fixation are realized, and the stability of independent installation is increased.

[0047] In use, the insulating pad plate 3 with the fixing protrusions 30 is combined and fixed with the protective shell 1 with the sealing washer 13, the transparent plate 10 is adhesively fixed with the protective shell 1, then the circuit board 22 is fixedly installed with the sealing plate 21 on the side cover 2 through the screw, the controller 220, the light emitter 221 and the light sensor 222 are sequentially electrically connected with the circuit board 22, the external connecting wire passes through the sealing washer 13 and extends to the inside of the protective shell 1 and is electrically connected with the corresponding circuit board 22, then the side cover 2 is inserted and matched with the left side surface of the protective shell 1 through the sealing plate 21, the side cover 2 is inserted and matched with the installation groove 11, the rubber pad 23 is inserted and matched with the annular groove 110, the flat head screw 240 passes through the counterbore 12 and is threadedly connected with the screw hole 24, and the side cover 2 is fixedly installed with the protective shell 1.

[0048] The external screw is combined and fixed with the electric appliance to be installed through the fixing protrusions 30, then the controller 220, the light emitter 221 and the light sensor 222 on the circuit board 22 are started through the connecting wire, when the light beam emitted by the light emitter 221 passes through the transparent plate 10 and meets different objects or environments, the light beam is blocked or reflected by the target object, intensity change, deflection and the like are generated, the light sensor 222 captures the changed light signals, the captured light signals are converted into electric signals, the electric signals are sent to the controller 220 for processing, corresponding control and detection cooperation is realized, under the cooperation of the sealing plate 21 and the rubber pad 23, the sealing and waterproof property between the combination gap of the side cover 2 and the protective shell 1 is increased, when the internal element needs to be replaced and repaired due to long-term use, the flat head screw 240 is taken out from the counterbore 12, under the cooperation of the invisible pull handle 20, the side cover 2 is helped to be opened, the internal element replacement and repair cooperation is facilitated, the overall combination installation is convenient, and the operation is simple.

Claims

1. A photoelectric sensor comprising a protective shell (1) and a side cover (2) plugged to the left side of the protective shell (1), characterized in that: The right end face of the side cover (2) is provided with a sealing plate (21), the right side face of the sealing plate (21) is provided with a circuit board (22), the circuit board (22) is provided with a controller (220) near the rear end, the right side face of the circuit board (22) is sequentially provided with a photosensor (222) and a light emitter (221) from top to bottom, the front end face of the protective shell (1) is provided with a transparent plate (10), the left end face of the protective shell (1) is provided with a mounting groove (11) corresponding to the side cover (2), the bottom of the mounting groove (11) is provided with an annular groove (110), and the side cover (2) is provided with a rubber pad (23) corresponding to the annular groove (110).

2. The photosensor of claim 1, wherein: The bottom of the protective shell (1) is provided with an insulating pad (3), the bottom of the protective shell (1) is provided with a sealing gasket (13) near the rear end, the sealing gasket (13) is provided with a detachable connecting wire, and the connecting wire is electrically connected with the circuit board (22).

3. The photosensor of claim 2, wherein: The sealing gasket (13) and the protective shell (1) are adhesively fixed, the top of the insulating pad (3) and the bottom of the protective shell (1) are adhesively fixed, and the two side edges of the insulating pad (3) are symmetrically provided with fixed lugs (30), and the fixed lugs (30) and the insulating pad (3) are an integral molding structure.

4. The photosensor of claim 1, wherein: The outer wall of the side cover (2) is provided with a hidden pull handle (20), the upper and lower ends of the side cover (2) are symmetrically provided with screw holes (24), the screw holes (24) are provided with flat head screws (240), and the upper and lower end faces of the protective shell (1) are provided with counterbores (12) corresponding to the screw holes (24).

5. The photosensor of claim 1, wherein: The width of the outer wall of the side cover (2) is adapted to the width of the inner wall of the mounting groove (11), the sealing plate (21) and the side cover (2) are adhesively fixed, the width of the outer wall of the sealing plate (21) is adapted to the width of the inner wall of the protective shell (1), the rubber pad (23) and the side cover (2) are adhesively fixed, and the width of the outer wall of the rubber pad (23) is adapted to the width of the inner wall of the annular groove (110).

6. The photosensor of claim 1, wherein: The circuit board (22) and the sealing plate (21) are fixedly connected through screws, the controller (220) is inserted and matched with the corresponding terminal hole on the circuit board (22) through a lead, and is welded and fixed, and the light emitter (221) and the photosensor (222) are inserted and matched with the corresponding terminal holes on the circuit board (22) through leads, and are welded and fixed.

7. The photosensor of claim 1, wherein: The transparent plate (10) is adhesively fixed around the protective shell (1), and the transparent plate (10) corresponds to the front end faces of the light emitter (221) and the photosensor (222).

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