CN203502025U - Photoelectric detection device - Google Patents
Photoelectric detection device Download PDFInfo
- Publication number
- CN203502025U CN203502025U CN201320588382.5U CN201320588382U CN203502025U CN 203502025 U CN203502025 U CN 203502025U CN 201320588382 U CN201320588382 U CN 201320588382U CN 203502025 U CN203502025 U CN 203502025U
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- Prior art keywords
- circuit board
- control circuit
- photoelectric detection
- detection system
- projection
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Abstract
The utility model discloses a photoelectric detection device, comprising a base and a control circuit board. An accommodating groove used for accommodating the control circuit board is inwardly recessed in the top surface of the base; the control circuit board is in fixed connection with the base and is provided with a photoelectric emitter and a photoelectric receiver. The photoelectric detection device also comprises a transparent protective cover used for sealing the accommodating groove; the transparent protective cover is in fixed connection with the base; one side of the transparent protective cover deviating from the control circuit board is provided with a first projection and a second projection. One surface of the transparent protective cover towards the control circuit board recesses in the first projection to form a first accommodating chamber and recesses in the second projection to form a second accommodating chamber; the photoelectric emitter is arranged in the first accommodating chamber; the photoelectric receiver is accommodated in the second accommodating chamber. The photoelectric detection device effectively prevents extraneous dust from absorbing on the photoelectric emitter and the photoelectric receiver and reduces photoelectric detection failure rate.
Description
Technical field
The utility model relates to photoelectric detection technology field, particularly a kind of photoelectric detection system.
Background technology
As everyone knows, in prior art, in photoelectric detection system, photoemitter and photelectric receiver, because needs detect the state of photoelectricity between the two, therefore need to be exposed at base exterior outward by photoemitter and photelectric receiver conventionally.But when the environment dust detecting is larger, dust is easily adsorbed on photoemitter and photelectric receiver, thereby affects photoelectricity transmission, causes the inefficacy of Photoelectric Detection.
Utility model content
Fundamental purpose of the present utility model is to provide a kind of photoelectric detection system, is intended to prevent that extraneous adsorbing powder dust is on photoemitter and photelectric receiver, reduces the crash rate of Photoelectric Detection.
To achieve these goals, the utility model provides a kind of photoelectric detection system, described photoelectric detection system comprises base and control circuit board, the end face of the described base storage tank for accommodating described control circuit board that caves inward, described control circuit board is fixedly connected with described base, and described control circuit board is provided with photoemitter and photelectric receiver; Described photoelectric detection system also comprises that one for sealing the transparent protective shield of described storage tank, and described transparent protective shield is fixedly connected with described base; The side that described transparent protective shield deviates from described control circuit board convexes with the first projection and the second projection; Described transparent protective shield forms the first accommodating cavity, to described the second projection sunken inside, forms the second accommodating cavity to described the first projection sunken inside towards a surface of described control circuit board; Described photoemitter is placed in described the first accommodating cavity, and described photelectric receiver is placed in described the second accommodating cavity.
Preferably, described base and described transparent protective shield one are provided with draw-in groove, and another is provided with the projection with described draw-in groove adaptation.
Preferably, described projection is provided with the guide surface that slips into described draw-in groove with described projection for guiding.
Preferably, described photoelectric detection system also comprises a Connection Block being fixedly connected with described control circuit board, the terminals that are fixedly connected with described Connection Block and the connecting line being electrically connected to described terminals, described Connection Block is provided with the fixed orifice with described terminals adaptation, and wherein said connecting line comprises the insulation division of electro-insulating rubber and the exposed portion of wrap insulate rubber not of being enclosed with; Described terminals comprise a metal fixed strip, in the relative both sides of described metal fixed strip, a side is extended with the connecting portion with described control circuit board electrical connection, and opposite side is extended with the pressure contact portion for exposed portion described in the fixed part of fixing described insulation division and crimping.
Preferably, described metal fixed strip is provided with the tin layer for being electrically connected to described exposed portion.
Preferably, the side that described base and end face are adjacent is provided with the breach passing for described connecting line.
Preferably, in described storage tank, be provided with the moistureproof glue of the described control circuit board of parcel.
Preferably, described moistureproof glue also wraps up described Connection Block, terminals and is positioned at the connecting line of described storage tank.
The utility model is by the storage tank on a transparent protective shield sealed base is set on base, and by being convexly equipped with in transparent protective shield for the first accommodating cavity of accommodating described photoemitter with for the second accommodating cavity of accommodating described photelectric receiver; Thereby can effectively prevent that extraneous adsorbing powder dust is on photoemitter and photelectric receiver, so the photoelectric detection system that provides of the utility model has reduced the crash rate of Photoelectric Detection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model photoelectric detection system one embodiment;
Fig. 2 does not install the structural representation of transparent protective shield in the utility model photoelectric detection system one embodiment;
Fig. 3 is the structural representation of transparent protective shield in the utility model photoelectric detection system one embodiment.
The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of photoelectric detection system.
Referring to figs. 1 through Fig. 3, Fig. 1 is the structural representation of the utility model photoelectric detection system one embodiment; Fig. 2 does not install the structural representation of transparent protective shield in the utility model photoelectric detection system one embodiment; Fig. 3 is the structural representation of transparent protective shield in the utility model photoelectric detection system one embodiment.The photoelectric detection system that the present embodiment provides comprises base 10 and control circuit board 20, the end face of described base 10 storage tank 11 for accommodating described control circuit board 20 that caves inward, described control circuit board 20 is fixedly connected with described base 10, described control circuit board 20 is provided with photoemitter 21 and photelectric receiver 22, described photoelectric detection system also comprises that one for sealing the transparent protective shield 30 of described storage tank 11, described transparent protective shield 30 is fixedly connected with described base 10, the side that described transparent protective shield 30 deviates from described control circuit board 20 convexes with the first projection 31 and the second projection 32, described transparent protective shield 30 forms the first accommodating cavity 311, to described the second projection 32 sunken insides, forms the second accommodating cavity 321 to described the first projection 31 sunken insides towards a surface of described control circuit board 20, described photoemitter 21 is placed in described the first accommodating cavity 311, and described photelectric receiver 22 is placed in described the second accommodating cavity 321.
In the present embodiment, one end of above-mentioned photoemitter 21 and photelectric receiver 22 is fixedly connected with described control circuit board 20, and the other end protrudes described storage tank 11 and arranges.The large I of above-mentioned the first accommodating cavity 311 and the second accommodating cavity 321 arranges according to actual needs, as long as can guarantee, between the first accommodating cavity 311 and the second accommodating cavity 321, exists enough gaps to pass for detected baffle plate.In the present embodiment, preferably, the first accommodating cavity 311 is slightly larger than photoemitter 21, the second accommodating cavities 321 and is slightly larger than photelectric receiver 22.Above-mentioned transparent protective shield 30 is made by transparent material, and its size and shape can arrange according to base 10, and coordinates control circuit board 20 is carried out to encapsulation process with base 10.
During installation, first by the first accommodating cavity 311 of transparent protective shield 30 over against photoemitter 21, the second accommodating cavities 321 over against photelectric receiver 22.Then promote transparent protective shield 30 to base 10 motions, and be fixedly connected with base 10 laminatings.
The utility model is by the storage tank 11 on transparent protective shield 30 sealed bases 10 is set on base 10, and by being convexly equipped with in transparent protective shield 30 for the first accommodating cavity 311 of accommodating described photoemitter 21 with for the second accommodating cavity 321 of accommodating described photelectric receiver 22; Thereby can effectively prevent that extraneous adsorbing powder dust is on photoemitter 21 and photelectric receiver 22, so the photoelectric detection system that provides of the utility model has reduced the crash rate of Photoelectric Detection.
The fixing mode of above-mentioned transparent protective shield 30 and base 10 that it should be noted that can arrange according to actual needs, and in the present embodiment, preferably, transparent protective shield 30 can be connected for being fixed with base 10.For example, described base 10 and described transparent protective shield 30 one are provided with draw-in groove, and another is provided with the projection with described draw-in groove adaptation.
In following examples, so that draw-in groove 33 to be set in transparent protective shield 30, projection 12 to be set on base 10 and to be elaborated.Particularly; one or more projections 12 can stretch out in each side of base 10; in transparent protective shield 30 one end relative with base 10, extend the fixed head with base 10 side laminatings; and the draw-in groove 33 with projection 12 adaptations is set on this fixed head; when described projection 12 is positioned at described draw-in groove 33, by projection 12 and draw-in groove 33, coordinates described transparent protective shield 30 is fixed on described base 10.
Further, based on above-described embodiment, in the present embodiment, described projection 12 is provided with the guide surface that slips into described draw-in groove 33 with described projection 12 for guiding.
In the present embodiment, above-mentioned guide surface is an inclined-plane, and particularly, described projection 12 is increased gradually and forms described guide surface to the other end away from described base 10 end faces by the one end near described base 10 end faces with respect to the thickness of base 10 sides.
Further, based on above-described embodiment, in the present embodiment, above-mentioned photoelectric detection system also comprises a Connection Block 40 being fixedly connected with described control circuit board 20, the terminals 50 that are fixedly connected with described Connection Block 40 and the connecting line (not shown) being electrically connected to described terminals 50, described Connection Block 40 is provided with the fixed orifice with described terminals 50 adaptations, and wherein said connecting line comprises the insulation division of electro-insulating rubber and the exposed portion of wrap insulate rubber not of being enclosed with; Described terminals 50 comprise a metal fixed strip, in the relative both sides of described metal fixed strip, a side is extended with the connecting portion with described control circuit board 20 electrical connections, and opposite side is extended with the pressure contact portion for exposed portion described in the fixed part of fixing described insulation division and crimping.
In the present embodiment, above-mentioned fixed part and abutting part are positioned at respectively the two ends of metal fixed strip, and connecting portion is in the middle part of metal fixed strip.Particularly, above-mentioned fixed part is two bonding jumpers that are oppositely arranged, above-mentioned insulation division between two bonding jumpers, and by bending bonding jumper insulation division is fixed on metal fixed strip; Above-mentioned pressure contact portion and exposed portion butt, and form the electrical connection of connecting line and terminals 50.Above-mentioned connecting portion is metal material, and is connected with metal fixed strip one, and on above-mentioned control circuit board 20, the corresponding welding hole being provided with connecting portion adaptation, during installation, is inserted into metal fixed strip in fixed orifice, thereby to the object that is fixedly connected with line; Connecting portion is inserted in corresponding welding hole, and by welding technology, connecting portion is soldered on control circuit board 20, thereby realize being electrically connected to of connecting line and control circuit board 20.
Further, based on above-described embodiment, in the present embodiment, above-mentioned metal fixed strip is provided with the tin layer for being electrically connected to described exposed portion.
In the present embodiment, when above-mentioned fixed part is fixedly connected with the insulation division of connecting line, and after abutting part and exposed portion butt, a tin layer can be set on metal fixed strip by wicking technique.In the present embodiment, the length of wicking can arrange according to actual needs, in order to guarantee that the electro-insulating rubber on insulation division is not burned, preferably, the little prevalue of length of the exposed portion of Length Ratio of this wicking.The present embodiment is by tin layer is set on metal fixed strip, thereby can strengthen the stability that fixed strip is electrically connected to connecting line.
Particularly, in the above-described embodiments, above-mentioned base 10 side adjacent with end face is provided with the breach 13 passing for described connecting line.In the present embodiment, the position of above-mentioned breach 13 and shape size can arrange by foundation actual needs, for example, can be arranged on the end face of base 10 and the junction of side.
Further, in above-mentioned storage tank 11, be provided with the moistureproof glue (not shown) of the described control circuit board 20 of parcel.
In the present embodiment, above-mentioned control circuit board 20 is positioned at storage tank 11, and apart from base 10 end face preset distance, is also provided with some through holes on control circuit board 20.After control circuit board 20 installations fixedly complete, by to the moistureproof glue of the interior injection of storage tank 11, moistureproof glue flows into the gap between the through hole by control circuit board 20 or control circuit board 20 and base 10 below of control circuit board 20, benefit is retained in to the top of control circuit board 20 after control circuit board 20 is full of.The present embodiment is by the moistureproof glue in the interior injection preset height of storage tank 11, thereby make moistureproof glue parcel control circuit board 20, therefore can effectively prevent control circuit board 20 and the device that is arranged on control circuit board 20 makes moist or caused photoelectricity transmission to be lost efficacy by gas attack.
Further, based on above-described embodiment, in the present embodiment, in order to improve further the stability of photoelectric detection system work, also above-mentioned moistureproof glue can be arranged to the connecting line that wraps up described Connection Block 40, terminals 50 and be positioned at described storage tank 11.
These are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (8)
1. a photoelectric detection system, comprise base and control circuit board, the end face of the described base storage tank for accommodating described control circuit board that caves inward, described control circuit board is fixedly connected with described base, described control circuit board is provided with photoemitter and photelectric receiver, it is characterized in that, described photoelectric detection system also comprises that one for sealing the transparent protective shield of described storage tank, and described transparent protective shield is fixedly connected with described base; The side that described transparent protective shield deviates from described control circuit board convexes with the first projection and the second projection; Described transparent protective shield forms the first accommodating cavity, to described the second projection sunken inside, forms the second accommodating cavity to described the first projection sunken inside towards a surface of described control circuit board; Described photoemitter is placed in described the first accommodating cavity, and described photelectric receiver is placed in described the second accommodating cavity.
2. photoelectric detection system as claimed in claim 1, is characterized in that, described base and described transparent protective shield one are provided with draw-in groove, and another is provided with the projection with described draw-in groove adaptation.
3. photoelectric detection system as claimed in claim 2, is characterized in that, described projection is provided with the guide surface that slips into described draw-in groove with described projection for guiding.
4. photoelectric detection system as claimed in claim 1, it is characterized in that, described photoelectric detection system also comprises a Connection Block being fixedly connected with described control circuit board, the terminals that are fixedly connected with described Connection Block and the connecting line being electrically connected to described terminals, described Connection Block is provided with the fixed orifice with described terminals adaptation, wherein, described connecting line comprises the insulation division of electro-insulating rubber and the exposed portion of wrap insulate rubber not of being enclosed with; Described terminals comprise a metal fixed strip, in the relative both sides of described metal fixed strip, a side is extended with the connecting portion with described control circuit board electrical connection, and opposite side is extended with the pressure contact portion for exposed portion described in the fixed part of fixing described insulation division and crimping.
5. photoelectric detection system as claimed in claim 4, is characterized in that, described metal fixed strip is provided with the tin layer for being electrically connected to described exposed portion.
6. photoelectric detection system as claimed in claim 4, is characterized in that, the side that described base and end face are adjacent is provided with the breach passing for described connecting line.
7. photoelectric detection system as claimed in claim 6, is characterized in that, is provided with the moistureproof glue of the described control circuit board of parcel in described storage tank.
8. photoelectric detection system as claimed in claim 7, is characterized in that, described moistureproof glue also wraps up described Connection Block, terminals and is positioned at the connecting line of described storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588382.5U CN203502025U (en) | 2013-09-23 | 2013-09-23 | Photoelectric detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588382.5U CN203502025U (en) | 2013-09-23 | 2013-09-23 | Photoelectric detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203502025U true CN203502025U (en) | 2014-03-26 |
Family
ID=50332998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320588382.5U Expired - Lifetime CN203502025U (en) | 2013-09-23 | 2013-09-23 | Photoelectric detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203502025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978544A (en) * | 2016-05-27 | 2016-09-28 | 深圳市劲拓自动化设备股份有限公司 | Protection unit for photoelectric switch |
| CN107168385A (en) * | 2017-06-23 | 2017-09-15 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod |
-
2013
- 2013-09-23 CN CN201320588382.5U patent/CN203502025U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978544A (en) * | 2016-05-27 | 2016-09-28 | 深圳市劲拓自动化设备股份有限公司 | Protection unit for photoelectric switch |
| CN105978544B (en) * | 2016-05-27 | 2019-07-12 | 深圳市劲拓自动化设备股份有限公司 | A kind of optoelectronic switch protective device |
| CN107168385A (en) * | 2017-06-23 | 2017-09-15 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod |
| CN107168385B (en) * | 2017-06-23 | 2023-10-03 | 浙江捷昌线性驱动科技股份有限公司 | Electric push rod |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |