CN202818256U - Photoelectric switching device and its application device - Google Patents
Photoelectric switching device and its application device Download PDFInfo
- Publication number
- CN202818256U CN202818256U CN 201220272566 CN201220272566U CN202818256U CN 202818256 U CN202818256 U CN 202818256U CN 201220272566 CN201220272566 CN 201220272566 CN 201220272566 U CN201220272566 U CN 201220272566U CN 202818256 U CN202818256 U CN 202818256U
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- photoelectric switch
- light shielding
- ptc
- thermantidote
- optoelectronic switch
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Abstract
The utility model provides a photoelectric switching device and its application device. The photoelectric switching device comprises a photoelectric switch, a shading block, and a PCB board, wherein the photoelectric switch in a U shape is arranged on the PCB board, one end of the U shape is provided with an infrared transmitting tube, the other end of the U shape is provided with an infrared receiving tube. When the shading block is between the two ends of the U shape of the photoelectric switch, the infrared ray transmitted from the infrared transmitting tube is shaded by the shading block, and is not received by the infrared receiving tube. When the shading block moves out between the two ends of the U shape of the photoelectric switch, and the infrared ray transmitted from the infrared transmitting tube is smoothly received by the infrared receiving tube. The photoelectric switching device has features of simple and reasonable structure, safe and reliable use, and wide adaptability, and can be widely applied in household appliances such as a cooling fan. At the same time, the assembly and disassembly are convenient, and the device has the functions such as control, measurement.
Description
Technical field
The utility model relates to a kind of switching device, particularly a kind of photoelectric switch that is applied on the household electrical appliance such as thermantidote.
Background technology
Thermantidote has another name called air-cooler, environment-friendly air conditioner, Water cooled air conditioners etc., belongs to vaporation-type cooling industry.Incessantly the water in the water tank is extracted out with circulating water pump, and by water distribution system spray equably the evaporation filter course on, hot outdoor air enters the evaporative cooling medium, in the evaporative cooling medium, fully carry out exchange heat with water, the air refrigerant, cleaning that adds the water evaporation endothermic and lower the temperature is sent into indoor by the low-noise fan pressurization, thereby reaches the purpose of room temperature lowering.In addition, thermantidote also can be by ptc heater to indoor conveying heating installation.
At present, because products characteristics and security needs are provided with dry-reed tube switch in product, play the effect of control power on/off.In the prior art, dry-reed tube switch adopts glass packaging, and the elastic spring electroplax of two ironys is housed in glass tube, and also filling with in the glass tube has a kind of inert gas that is metal rhodium.Two reeds in glass tube at ordinary times separate, and when the material that is magnetic during near glass tube, under the effect in magnetic field, two reeds in the pipe are magnetized and the contact of attracting each other the circuit communication that two pins are connect.After outer magnetic force disappeared, two reeds were owing to the elasticity of itself is separated, and circuit also just disconnects.Yet the dry-reed tube switch glass tube is damaged easily, and Simultaneous Switching causes switch sometimes malfunctioning because the magnetic of magnetisable material and distance are restive, and the power on/off reliability is low.In addition, because the dry-reed tube switch loaded current is little, withstand voltage not high, generally only be used for light current control, accommodation is little.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of simple and reasonable, safe and reliable, wide adaptability, can be widely used in the photoelectric switch on the household electrical appliance such as thermantidote.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of photoelectric switch, comprise optoelectronic switch, light shielding block, pcb board, described optoelectronic switch is located on the described pcb board, described optoelectronic switch takes the shape of the letter U, described U-shaped one end is provided with infrared emission tube, and the described U-shaped other end is provided with infrared receiver tube.
When the utility model was between the optoelectronic switch U-shaped two ends when described light shielding block, the infrared ray of described infrared emission tube emission was covered by light shielding block, and described infrared receiver tube can't receive.When described light shielding block when shifting out between the optoelectronic switch U-shaped two ends, the infrared ray of described infrared emission tube emission can be received by infrared receiver tube smoothly.Simple and reasonable, safe and reliable, wide adaptability can be widely used on the household electrical appliance such as thermantidote.
In one embodiment, the photoelectric switch that provides of the utility model is applied on the thermantidote.
In one embodiment, described thermantidote is provided with wet curtain support, and described light shielding block is located on the described wet curtain support, and described optoelectronic switch is located at corresponding position, described wet curtain support top, is used for the control power on/off.
In one embodiment, described thermantidote is provided with ptc heater, synchronous machine, air outlet frame, described ptc heater comprises PTC support and PTC electric heating element, described PTC electric heating element is located on the described PTC support, described photoelectric switch is made as two, described light shielding block is located at respectively described PTC support both sides, and described optoelectronic switch is located at respectively corresponding position, described air outlet frame both sides, is used for the heating of control ptc heater.
In one embodiment, described thermantidote is provided with water tank, and described water tank is provided with tank lid, water pump and fly rod, and described light shielding block is located on the described fly rod, and described optoelectronic switch is located at described tank lid corresponding position, for detection of cistern water level.
The beneficial effects of the utility model are: when the utility model was between the optoelectronic switch U-shaped two ends when described light shielding block, the infrared ray of described infrared emission tube emission was covered by light shielding block, and described infrared receiver tube can't receive.When described light shielding block when shifting out between the optoelectronic switch U-shaped two ends, the infrared ray of described infrared emission tube emission can be received by infrared receiver tube smoothly.Simple and reasonable, safe and reliable, wide adaptability can be widely used on the household electrical appliance such as thermantidote.Simultaneously mounting or dismounting are convenient, have the several functions such as control, detection.
Description of drawings
Fig. 1 is perspective view of the present utility model.
Fig. 2 is that the utility model is in the work schematic diagram of tearing the tester in power-down state guard mode open at thermantidote.
Fig. 3 is the utility model is in "on" position at thermantidote work schematic diagram.
Fig. 4 is the utility model is in heated condition at ptc heater work schematic diagram.
Fig. 5 is that the utility model is in the not work schematic diagram of heated condition at ptc heater.
Fig. 6 is that the utility model is at the work schematic diagram of cistern water level higher state.
Fig. 7 is that the utility model is the work schematic diagram of excessive low water level protection at the low state of cistern water level.
Omitted the miscellaneous part irrelevant with the utility model design main points among the figure.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 1, a kind of photoelectric switch 100 of the present utility model, comprise optoelectronic switch 101, light shielding block 102, pcb board 103, described optoelectronic switch 101 is located on the described pcb board 103, described optoelectronic switch 101 takes the shape of the letter U, described U-shaped one end is provided with infrared emission tube 104, and the described U-shaped other end is provided with infrared receiver tube 105.
When the utility model was between the optoelectronic switch 101U shape two ends when described light shielding block 102, the infrared ray of described infrared emission tube 104 emissions was covered by light shielding block 102, and described infrared receiver tube 105 can't receive.When described light shielding block 102 when shifting out between the optoelectronic switch 101U shape two ends, the infrared ray of described infrared emission tube 104 emissions can be received by infrared receiver tube 105 smoothly.Simple and reasonable, safe and reliable, wide adaptability can be widely used on the household electrical appliance such as thermantidote.
In the present embodiment, the photoelectric switch that the utility model provides is applied on the thermantidote.
Such as Fig. 2, shown in Figure 3, described thermantidote is provided with wet curtain support 106, and described light shielding block 102 is located on the described wet curtain support 106, and described optoelectronic switch 101 is located at corresponding position, described wet curtain support 106 top, is used for the control power on/off.
As shown in Figure 2; when wet curtain support 106 is pulled down from thermantidote; described light shielding block 102 shifts out between optoelectronic switch 101U shape two ends; this moment, the infrared ray of infrared emission tube emission can be received by infrared receiver tube smoothly; transmission of signal is to the control module on the thermantidote; make thermantidote be in non operating state, as the application of tearing the tester in power-down state protection open.
As shown in Figure 3, when wet curtain support 106 reinstalls thermantidote, described light shielding block 102 is between the optoelectronic switch 101U shape two ends, the infrared ray of described infrared emission tube emission is covered by light shielding block, described infrared receiver tube can't receive, signal just can't be delivered to control module like this, and thermantidote just can be always in running order.
Such as Fig. 4, shown in Figure 5, described thermantidote is provided with ptc heater, synchronous machine 107, air outlet frame 108, described ptc heater comprises PTC support 109 and PTC electric heating element 110, described PTC electric heating element 110 is located on the described PTC support 109, described photoelectric switch is made as two, described light shielding block 102 is located at respectively described PTC support 109 both sides, and described optoelectronic switch 101 is located at respectively corresponding position, described air outlet frame 108 both sides, as the application of control ptc heater heating.
As shown in Figure 4, when needs heat, described PTC support 109 makes light shielding block 102A be between the U-shaped two ends of optoelectronic switch 101A under the promotion of synchronous machine 107, the infrared ray of described infrared emission tube emission is covered by light shielding block 102A, described infrared receiver tube can't receive, signal interruption, and control module can judge that just described PTC electric heating element 110 is in air outlet position like this, control synchronous machine 107 stops to promote, and controls simultaneously PTC electric heating element 110 and begins heating.
As shown in Figure 5, when the needs stopped heating, described PTC support 109 makes light shielding block 102A shift out between the U-shaped two ends of optoelectronic switch 101A under the promotion of synchronous machine 107, this moment, the infrared ray of infrared emission tube emission can be received PTC electric heating element 110 stopped heatings smoothly by infrared receiver tube.When PTC support 109 makes light shielding block 102B be between the U-shaped two ends of optoelectronic switch 101B under the promotion of synchronous machine 107, the infrared ray of described infrared emission tube emission is covered by light shielding block 102B, described infrared receiver tube can't receive, signal interruption, control module can judge that just described PTC electric heating element 110 is in non-air outlet position like this, and control synchronous machine 107 stops to promote.
Such as Fig. 6, shown in Figure 7, described thermantidote is provided with water tank 111, and described water tank 111 is provided with tank lid 112, water pump 113 and fly rod 114, and described light shielding block 102 is located on the described fly rod 114, described optoelectronic switch 101 is located at described tank lid 112 corresponding positions, for detection of cistern water level.
As shown in Figure 6, when water tank 111 interior water levels were higher, described light shielding block 102 was between the optoelectronic switch 101U shape two ends, the infrared ray of described infrared emission tube emission is covered by light shielding block 102, described infrared receiver tube can't receive, signal interruption, and this moment, water pump 113 began to draw water.
As shown in Figure 7; along with the water in the water tank 111 is consumed; water level descends; be in exsiccosis; fly rod 114 descends thereupon, and described light shielding block 102 shifts out between optoelectronic switch 101U shape two ends gradually, and this moment, the infrared ray of infrared emission tube emission can be received by infrared receiver tube smoothly; then control water pump 113 and stop pumping, as the application of excessive low water level protection.
Only be preferred embodiment of the present utility model below, but design concept of the present utility model is not limited to this, all insubstantial modifications of utilizing this design that the utility model is made also all fall within the protection range of the present utility model.
Claims (5)
1. a photoelectric switch is characterized in that, comprises optoelectronic switch, light shielding block, pcb board, described optoelectronic switch is located on the described pcb board, described optoelectronic switch takes the shape of the letter U, and described U-shaped one end is provided with infrared emission tube, and the described U-shaped other end is provided with infrared receiver tube.
2. the application apparatus of a photoelectric switch claimed in claim 1 is characterized in that, described photoelectric switch is applied on the thermantidote.
3. the application apparatus of photoelectric switch according to claim 2 is characterized in that, described thermantidote is provided with wet curtain support, and described light shielding block is located on the described wet curtain support, and described optoelectronic switch is located at corresponding position, described wet curtain support top.
4. the application apparatus of photoelectric switch according to claim 2, it is characterized in that, described thermantidote is provided with ptc heater, synchronous machine, air outlet frame, described ptc heater comprises PTC support and PTC electric heating element, described PTC electric heating element is located on the described PTC support, described photoelectric switch is made as two, and described light shielding block is located at respectively described PTC support both sides, and described optoelectronic switch is located at respectively corresponding position, described air outlet frame both sides.
5. the application apparatus of photoelectric switch according to claim 2, it is characterized in that described thermantidote is provided with water tank, described water tank is provided with tank lid, water pump and fly rod, described light shielding block is located on the described fly rod, and described optoelectronic switch is located at described tank lid corresponding position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272566 CN202818256U (en) | 2012-06-11 | 2012-06-11 | Photoelectric switching device and its application device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220272566 CN202818256U (en) | 2012-06-11 | 2012-06-11 | Photoelectric switching device and its application device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202818256U true CN202818256U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220272566 Expired - Fee Related CN202818256U (en) | 2012-06-11 | 2012-06-11 | Photoelectric switching device and its application device |
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| Country | Link |
|---|---|
| CN (1) | CN202818256U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885615A (en) * | 2017-04-10 | 2017-06-23 | 青岛海尔空调器有限总公司 | Water level perceptron and dehumidifier |
| CN108999804A (en) * | 2018-09-18 | 2018-12-14 | 珠海格力电器股份有限公司 | PTC component mobile device, cooling fan and its method for heating and controlling for cooling fan |
-
2012
- 2012-06-11 CN CN 201220272566 patent/CN202818256U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885615A (en) * | 2017-04-10 | 2017-06-23 | 青岛海尔空调器有限总公司 | Water level perceptron and dehumidifier |
| CN106885615B (en) * | 2017-04-10 | 2020-04-10 | 青岛海尔空调器有限总公司 | Water level perceptron and dehumidifier |
| CN108999804A (en) * | 2018-09-18 | 2018-12-14 | 珠海格力电器股份有限公司 | PTC component mobile device, cooling fan and its method for heating and controlling for cooling fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20160611 |