CN202586920U - Groove type photoelectric switch - Google Patents
Groove type photoelectric switch Download PDFInfo
- Publication number
- CN202586920U CN202586920U CN 201220168741 CN201220168741U CN202586920U CN 202586920 U CN202586920 U CN 202586920U CN 201220168741 CN201220168741 CN 201220168741 CN 201220168741 U CN201220168741 U CN 201220168741U CN 202586920 U CN202586920 U CN 202586920U
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- CN
- China
- Prior art keywords
- housing
- infrared
- control circuit
- tube
- grid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Switches Operated By Changes In Physical Conditions (AREA)
- Electronic Switches (AREA)
Abstract
The utility model provides a groove type photoelectric switch. Conventional type photoelectric switches generally adopt a straight-tube type and respond to product detection of low-speed motion and are low in sensitivity, weak in stability and anti-interference performance and relatively single in profile to products of high-speed motion. When different levels are detected, frequency needs to be adjusted, so that much inconvenience is in practical operation. The photoelectric switch comprises a housing (1), an infrared-ray receiving tube (2), an infrared-ray emission tube (3) and a control circuit (4), wherein the infrared-ray receiving tube (2), the infrared-ray emission tube (3) and the control circuit (4) are arranged in the housing. The housing is a U-type structure. The infrared-ray emission tube and the infrared-ray receiving tube are respectively mounted on two ends of the housing with the U-type structure. An indicator light (5) is disposed on the housing and connected with a control circuit. The control circuit is connected with a power-supply connection wiring (6). The switch provided by the utility model is disturbed by the environment when in an operation state. Operation is safe and stable and the detection distance is long and response speed is fast.
Description
Technical field
The utility model relates to a kind of grooved optoelectronic switch, belongs to sensor technical field.
Background technology
Optoelectronic switch is to change the power of light between transmitting terminal and the receiving terminal to be converted into change in current to reach the purpose of detection.Because optoelectronic switch output loop and input circuit are electricity isolates (being that electric edge is exhausted), so it can be applied in many occasions.Existing optoelectronic switch generally adopts straight barrel type, the product of those microinchings is detected relatively respond, and the product sensitivity of high-speed motion is not high, and stability, anti-interference are not strong, and profile is also more single.When detecting varying level, need adjust frequency or the like, bring a lot of inconvenience to practical operation.And existing switch generally adopts plastic casing, and easy abrasion is not durable.
Summary of the invention
The purpose of the utility model is that the problem that is directed against above-mentioned existence provides a kind of grooved optoelectronic switch, does not receive external interference during work, and work safety is stable and detect distance, response speed is fast.
Above-mentioned purpose realizes through following technical scheme:
The grooved optoelectronic switch; Comprise housing and the infrared receiver tube, infrared emission tube and the control circuit that are installed in described housing the inside; Described housing is a U type structure, and described infrared emission tube and described infrared receiver tube are installed in the housing two ends of described U type structure respectively, on the described housing indicator light are installed; Described indicator light connects described control circuit, and described control circuit connects power supply wiring.
Described grooved optoelectronic switch; Described infrared emission tube adopts the concentric drums electrode structure; Comprise negative electrode, described negative electrode is followed successively by the first grid, second grid and anode to periphery, connects the piece installing of grid cathode sets between the described negative electrode and the described first grid, second grid.
Beneficial effect:
1. the utility model adopts the U font structure of standard, and its reflector and receiver lay respectively at the both sides of U type groove, and form an optical axis, and when object to be detected process U type groove and blocking-up optical axis, optoelectronic switch has just produced detected switching value signal.The U font makes and detects the fixed distance of thing between reception and emission, avoids waiting for for a long time and not having response; And suitable detection that can be more safe and reliable changes at a high speed, differentiates transparent and translucent object.
2. the infrared emission tube of the utility model adopts the concentric drums electrode structure; Negative electrode is at innermost layer; Outwards be followed successively by each grid and anode; For the whole pipe behind negative electrode, the first grid, second grid, the piece installing of grid cathode sets and the anode of packing into, help improving sensitivity and stability from left to right.Grid is many with molybdenum filament or tungsten filament coiling, or with molybdenum sheet through method manufacturings such as electric machining.Gate surface to reduce the gate electron emission, makes the transmitting tube steady operation through processing such as gold-plated (or platinum) or coating zirconium powders.Graphite grid with CVD method is made has good performance.Transmitting tube employing full impregnated is bright, the resin-encapsulated of black.
3. the utility model adopts metal shell, can adapt to various complex environments, and is durable in use, and cost performance is high.
Description of drawings
The structural representation of Fig. 1, the utility model.
The structural representation of the infrared emission tube of Fig. 2, the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, further illustrate the utility model.
Embodiment 1:
Shown in accompanying drawing 1: the grooved optoelectronic switch; Comprise housing 1 and the infrared receiver tube 2, infrared emission tube 3 and the control circuit 4 that are installed in described housing the inside; Described housing is a U type structure, and described infrared emission tube and described infrared receiver tube are installed in the housing two ends of described U type structure respectively, and indicator light 5 is installed on the described housing; Described indicator light connects described control circuit, and described control circuit connects power supply wiring 6.
Embodiment 2:
As shown in Figure 2; Described grooved optoelectronic switch; Described infrared emission tube adopts the concentric drums electrode structure; Comprise negative electrode 7, described negative electrode is followed successively by the first grid 8, second grid 9 and anode 10 to periphery, connects grid cathode sets piece installing 11 between the described negative electrode and the described first grid, second grid.
Claims (2)
1. grooved optoelectronic switch; Comprise housing and the infrared receiver tube, infrared emission tube and the control circuit that are installed in described housing the inside; It is characterized in that: described housing is a U type structure, and described infrared emission tube and described infrared receiver tube are installed in the housing two ends of described U type structure respectively, on the described housing indicator light are installed; Described indicator light connects described control circuit, and described control circuit connects power supply wiring.
2. grooved optoelectronic switch according to claim 1; It is characterized in that: described infrared emission tube adopts the concentric drums electrode structure; Comprise negative electrode; Described negative electrode is followed successively by the first grid, second grid and anode to periphery, connects the piece installing of grid cathode sets between the described negative electrode and the described first grid, second grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168741 CN202586920U (en) | 2012-04-20 | 2012-04-20 | Groove type photoelectric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168741 CN202586920U (en) | 2012-04-20 | 2012-04-20 | Groove type photoelectric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202586920U true CN202586920U (en) | 2012-12-05 |
Family
ID=47256278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220168741 Expired - Fee Related CN202586920U (en) | 2012-04-20 | 2012-04-20 | Groove type photoelectric switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202586920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515535A (en) * | 2014-12-19 | 2015-04-15 | 上海兰宝传感科技股份有限公司 | Groove-type grating sensor |
| CN109061768A (en) * | 2018-07-23 | 2018-12-21 | 东方通信股份有限公司 | Human body proximity sensor verifying attachment and detection method |
-
2012
- 2012-04-20 CN CN 201220168741 patent/CN202586920U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515535A (en) * | 2014-12-19 | 2015-04-15 | 上海兰宝传感科技股份有限公司 | Groove-type grating sensor |
| CN109061768A (en) * | 2018-07-23 | 2018-12-21 | 东方通信股份有限公司 | Human body proximity sensor verifying attachment and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130420 |