CN213126001U

CN213126001U - Photoelectric switch

Info

Publication number: CN213126001U
Application number: CN202022278849.9U
Authority: CN
Inventors: 陈武辉
Original assignee: Guangdong Senjue Optical Technology Co ltd
Current assignee: Guangdong Senjue Optical Technology Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-05-04
Anticipated expiration: 2030-10-13

Abstract

The utility model relates to the technical field of photoelectric switches, in particular to a photoelectric switch, which comprises a casing, a linear light source module, a power module and a support module connected with the linear light source module arranged in the casing. and a heat dissipation module; the casing is provided with a launch cavity and an accommodating cavity; the power module is arranged in the accommodating cavity; the linear light source module, the support module and the heat dissipation module are all arranged in the the emission cavity; the linear light source module includes a detection circuit, an optical fiber connected with the detection circuit, a light guide assembly connected with the optical fiber, a filter assembly connected with the light guide assembly, an induction disc arranged on the casing, and a light-gathering component arranged at the filter assembly and corresponding to the induction disc. The utility model solves the problems that the traditional photoelectric switch has a simple structure, a single detection function, and cannot detect objects with holes.

Description

Photoelectric switch

Technical Field

The utility model relates to a photoelectric switch technical field especially relates to photoelectric switch.

Background

The photoelectric switch is a short-term photoelectric proximity switch, and detects the existence of an object by utilizing the shielding or reflection of the detected object to a light beam and switching on a circuit through a synchronous circuit. The object is not limited to metal, and all objects that reflect light (or block light) can be detected. The photoelectric switch converts the input current into an optical signal on the transmitter to be emitted, and the receiver detects the target object according to the intensity or the existence of the received light. A common photoelectric switch smoke alarm in a security system is frequently used in the industry for counting the movement times of a mechanical arm.

However, the traditional photoelectric switch has a simple structure and a single detection function, and cannot detect a porous object.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a photoelectric switch that can use a linear light source to detect an object with holes, in order to solve the problems of the conventional technologies.

A photoelectric switch comprises a shell, a linear light source module, a power supply module, a support module and a heat dissipation module, wherein the linear light source module and the power supply module are arranged in the shell; the shell is provided with an emission cavity and an accommodating cavity; the power supply module is arranged in the accommodating cavity; the linear light source module, the support module and the heat dissipation module are all arranged in the emission cavity; the linear light source module comprises a detection circuit device, an optical fiber connected with the detection circuit device, a light guide assembly connected with the optical fiber, a filter assembly connected with the light guide assembly, an induction disc arranged on the shell, and a light gathering assembly arranged on the filter assembly and corresponding to the induction disc.

In one embodiment, the light guide assembly includes a light guide cavity, a light emitting element disposed in the light guide cavity, a heat conductive layer, and a support element connected to the heat conductive layer.

In one embodiment, the light guide assembly includes a plurality of sets of heat absorbing protrusions disposed on the thermally conductive layer.

In one embodiment, the filter assembly comprises a first filter, a second filter, a third filter and a light guide channel which are sequentially stacked.

In one embodiment, the light focusing assembly comprises a first light focusing lens and a second light focusing lens; the first condenser lens is connected with the induction disc; the second condenser lens is connected with the light guide channel.

In one embodiment, the supporting module includes a base, a supporting platform disposed on the base, a rubber pad disposed between the supporting platform and the base, and a supporting plate disposed on the supporting platform and connected to the light guiding assembly.

In one embodiment, the support module comprises a support frame; the support frame is located the transmission chamber and with the support frame that detection circuit ware is connected.

In one embodiment, the heat dissipation module comprises a separation plate, a heat conduction plate connected with the light gathering component, and heat dissipation fins mounted on the separation plate and connected with the heat conduction plate.

In one embodiment, the partition plate is provided with heat dissipation holes; the heat dissipation holes are communicated with the emission cavity and the containing cavity respectively.

In one embodiment, the heat insulation device further comprises a heat insulation layer and a supporting block; the heat insulation layer is positioned at the top of the emission cavity; the supporting block is located in the accommodating cavity.

The utility model has the advantages as follows:

the utility model discloses setting up a photoelectric switch and can using the linear light source, realize the detection to the porose object, it is concrete, including the casing, the casing plays certain guard action, and the casing is inside to be divided into transmission chamber and holding chamber, and linear light source module, support module and heat dissipation module all set up in the transmission chamber, and the power module sets up in the holding chamber, sets up the linear light source module and can transmit the linear light source, realizes the detection to the porose object, and detection effect is good, and is concrete, including detection circuit ware, the optical fiber who is connected with the detection circuit ware; the detection circuit ware is surveyed the target object according to the power of received optic fibre, and it is high to detect the precision, and optical fiber is connected with the leaded light subassembly, and the leaded light of leaded light subassembly is effectual, and the one end of leaded light subassembly is provided with the filter subassembly, sets up the filter subassembly and is used for filtering the interference of visible light with the light of other wavelengths, and the spotlight of spotlight subassembly is effectual, realizes that the wide-angle light beam becomes the small-angle light beam, has improved the sensitivity that detects.

Drawings

Fig. 1 is a schematic perspective view of a photoelectric switch according to the present invention;

FIG. 2 is a schematic structural diagram of the optoelectronic switch of FIG. 1;

fig. 3 is a partially enlarged view of the optoelectronic switch of fig. 2 at circle a.

Description of reference numerals: the light source module comprises a shell 10, a supporting block 11, a heat insulation layer 12, a power supply module 20, a linear light source module 30, a detection circuit 31, a light guide fiber 32, a light guide assembly 33, a light guide cavity 331, a light emitting member 332, a heat conduction layer 333, a supporting member 334, a heat absorption bulge 335, a filter assembly 34, a first filter 341, a second filter 342, a third filter 343, a light guide channel 344, a sensing disc 35, a light focusing assembly 36, a first light focusing lens 361, a second light focusing 362, a supporting module 40, a base 41, a rubber pad 42, a supporting table 43, a supporting plate 44, a supporting frame 45, a heat dissipation module 50, a partition plate 51, a heat conduction plate 52, heat dissipation fins 53 and.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 3, a photoelectric switch according to an embodiment of the present invention can use a linear light source to detect a porous object. In the present embodiment, the optoelectronic switch includes a housing 10, a linear light source module 30 disposed in the housing 10, a power module 20, a supporting module 40 connected to the linear light source module 30, and a heat dissipation module 50; the shell 10 is provided with an emission cavity and an accommodating cavity; the power module 20 is arranged in the accommodating cavity; the linear light source module 30, the support module 40 and the heat dissipation module 50 are all arranged in the emission cavity; the linear light source module 30 includes a detection circuit 31, an optical fiber 32 connected to the detection circuit 31, a light guide unit 33 connected to the optical fiber 32, a filter unit 34 connected to the light guide unit 33, a sensing plate 35 provided on the housing 10, and a light collecting unit 36 provided on the filter unit 34 and corresponding to the sensing plate 35.

As shown in fig. 2, further comprises an insulating layer 12 and a supporting block 11; the heat insulation layer 12 is positioned at the top of the emission cavity; the supporting block 11 is positioned in the accommodating cavity; in this embodiment, insulating layer 12 sets up at the top in transmission chamber, and is thermal-insulated effectual, and the quantity of supporting shoe 11 is two sets of all setting in the holding intracavity, and the supporting effect is good.

The light guide assembly 33 includes a light guide cavity 331, a light emitting element 332 disposed in the light guide cavity 331, a heat conducting layer 333, and a support 334 connected to the heat conducting layer 333; in this embodiment, the light emitting element 332 is used for emitting light, and the light guide cavity 331 has a good light guide effect.

The light guide assembly 33 includes a plurality of heat absorbing protrusions 335 disposed on the heat conductive layer 333, and the heat absorbing effect of the plurality of heat absorbing protrusions 335 is good.

As shown in fig. 3, the filter assembly 34 includes a first filter 341, a second filter 342, a third filter 343, and a light guide channel 344 sequentially stacked; the filter assembly 34 is configured to filter interference between visible light and light with other wavelengths, and in this embodiment, the filter assembly is configured to have a good filtering effect.

As shown in fig. 2, the light condensing assembly 36 includes a first condensing lens 361 and a second condensing lens 362; the first condenser lens 361 is connected with the induction disc 35; a second condenser lens 362 is connected to the light guide channel 344; the light condensing assembly 36 has a good light condensing effect, and realizes that the large-angle light beam is changed into the small-angle light beam, thereby improving the detection sensitivity.

The supporting module 40 includes a base 41, a supporting platform 43 disposed on the base 41, a rubber pad 42 disposed between the supporting platform 43 and the base 41, and a supporting plate 44 disposed on the supporting platform 43 and connected to the light guiding assembly 33; the supporting effect of the supporting module 40 is good.

The support module 40 includes a support frame 45; a support bracket 45 positioned in the emission cavity and connected with the detection circuit device 31; the supporting effect of the supporting frame 45 on the detection circuit device 31 is good.

The heat dissipation module 50 includes a partition plate 51, a heat conduction plate 52 connected to the light focusing assembly 36, and heat dissipation fins 53 mounted on the partition plate 51 and connected to the heat conduction plate 52, in this embodiment, the heat dissipation fins 53 are multiple groups with good heat dissipation effect; the partition plate 51 is provided with heat dissipation holes 54; the heat dissipation hole 54 communicates with the emission chamber and the accommodation chamber, respectively.

The utility model discloses a photoelectric switch can use the linear light source, realizes the detection to the porose object, and is concrete, including casing 10, casing 10 plays certain guard action, and casing 10 is inside to be divided into transmission chamber and holding chamber, and linear light source module 30, support module 40 and heat dissipation module 50 all set up in the transmission chamber, and power module 20 sets up in the holding chamber, sets up linear light source module 30 and can launch the linear light source, realizes the detection to the porose object, and detection effect is good, and is concrete, including detection circuit ware 31, the optical fiber 32 of being connected with detection circuit ware 31; detection circuitry ware 31 surveys the target object according to the power of the optic fibre of receiving, it is high to detect the precision, optic fibre 32 is connected with leaded light subassembly 33, leaded light subassembly 33's leaded light effect is good, leaded light subassembly 33's one end is provided with filter assembly 34, it is used for filtering the interference of visible light with the light of other wavelengths to set up filter assembly 34, spotlight assembly 36's spotlight is effectual, it becomes small-angle light beam to realize large-angle light beam, the sensitivity of detection has been improved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A photoelectric switch is characterized by comprising a shell, a linear light source module, a power supply module, a support module and a heat dissipation module, wherein the linear light source module and the power supply module are arranged in the shell; the shell is provided with an emission cavity and an accommodating cavity; the power supply module is arranged in the accommodating cavity; the linear light source module, the support module and the heat dissipation module are all arranged in the emission cavity; the linear light source module comprises a detection circuit device, an optical fiber connected with the detection circuit device, a light guide assembly connected with the optical fiber, a filter assembly connected with the light guide assembly, an induction disc arranged on the shell, and a light gathering assembly arranged on the filter assembly and corresponding to the induction disc.

2. The optoelectronic switch of claim 1, wherein the light guide assembly comprises a light guide cavity, a light emitting element disposed in the light guide cavity, a heat conductive layer, and a support element connected to the heat conductive layer.

3. The optoelectronic switch of claim 2, wherein the light guiding assembly comprises a plurality of sets of heat absorbing protrusions disposed on the thermally conductive layer.

4. The optoelectronic switch of claim 1, wherein the filter assembly comprises a first filter, a second filter, a third filter, and a light-guiding channel stacked in sequence.

5. The optoelectronic switch of claim 4, wherein the light focusing assembly comprises a first light focusing lens and a second light focusing lens; the first condenser lens is connected with the induction disc; the second condenser lens is connected with the light guide channel.

6. The optoelectronic switch of claim 1, wherein the supporting module comprises a base, a supporting platform disposed on the base, a rubber pad disposed between the supporting platform and the base, and a supporting plate disposed on the supporting platform and connected to the light guiding assembly.

7. The optoelectronic switch of claim 1, wherein the support module comprises a support frame; the support frame is located the transmission chamber and with the support frame that detection circuit ware is connected.

8. The optoelectronic switch of claim 1, wherein the heat sink module comprises a separation plate, a heat conducting plate connected to the light gathering assembly, and heat sink fins mounted on the separation plate and connected to the heat conducting plate.

9. The photoelectric switch according to claim 8, wherein the partition plate is provided with a heat radiation hole; the heat dissipation holes are communicated with the emission cavity and the containing cavity respectively.

10. The optoelectronic switch of claim 1, further comprising a thermal insulation layer and a support block; the heat insulation layer is positioned at the top of the emission cavity; the supporting block is located in the accommodating cavity.