CN2189777Y - Light-changeable switch - Google Patents
Light-changeable switch Download PDFInfo
- Publication number
- CN2189777Y CN2189777Y CN 94206468 CN94206468U CN2189777Y CN 2189777 Y CN2189777 Y CN 2189777Y CN 94206468 CN94206468 CN 94206468 CN 94206468 U CN94206468 U CN 94206468U CN 2189777 Y CN2189777 Y CN 2189777Y
- Authority
- CN
- China
- Prior art keywords
- electric light
- switch
- light
- power supply
- turned
- 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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Abstract
The utility model relates to a switch capable of controlling the on and off of the power supply of an electric light and changing the lightness of the emitted light of the electric light. The utility model is mainly composed of rectifying diodes D1, D2 and switches K1, K2, which are connected in parallel. When the switches K1, K2 are turned off, as the rectifying diodes D1, D2 are connected in reverse directions, both ends of the electric light SD have no working voltage and the electric light does not emit light. When the switches K1, K2 are turned on, the electric light SD is conducted with the power supply and emits light. When the switch K1 (or K2) is turned off and the switch K2 (or K1) is turned on, as the rectifying diode D1 (D2) has unilateral conduction, the voltages of the two of both ends of the electric light SD are half as large as the power supply voltage and the brightness of the emitted light is reduced by half.
Description
The utility model relates to a kind of on/off that can control electric light, can change the switch of the luminosity of electric light.
At present, known switch and power supply can be controlled the on/off of electric light with after electric light is connected, and when switch disconnected, electric light was not luminous with the power supply disconnection; During switch closure, electric light and power turn-on are luminous, but the luminosity of electric light can not change.
The purpose of this utility model provides a kind of switch, can control the on/off of electric light, can change the luminosity of electric light.
The purpose of this utility model is achieved in that two rectifier diodes and two switches are in parallel respectively, and an end and the power supply of two rectifier diode identical polars joined, and the other end and the electric light of two rectifier diode identical polars join.When two switches all disconnected, because two rectifier diodes oppositely join, the electric light two ends did not have operating voltage, and electric light is not luminous; When two switches all during conducting, the voltage at electric light two ends is identical with power supply, and electric light is luminous; When any one switch disconnected another switch conduction, because a rectifier diode unilateal conduction, the voltage at electric light two ends was about half of supply voltage, and electric light is luminous, but luminosity reduces half approximately.Certainly, the utility model also can be controlled the power consumption of other resistive loads.
Owing to adopted such scheme, the utility model can be controlled the on/off of electric light, can change the luminosity of electric light.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the utility model circuit theory diagrams.
Fig. 2 is the embodiment circuit theory diagrams.
Fig. 3 is an embodiment profile schematic diagram.
Fig. 4 is an embodiment wiring board schematic diagram.
Among Fig. 1, rectifier diode D1, D2 and K switch 1, K2 are in parallel, and positive pole one end and the power supply of rectifier diode D1, D2 join, and negative pole one end and the electric light SD of rectifier diode D1, D2 join.When K switch 1, K2 disconnected, because rectifier diode D1, D2 oppositely join, it is not luminous that electric light SD does not have operating voltage in two ends; As K switch 1, K2 all during conducting, the voltage at electric light SD two ends is identical with power supply luminous; As K switch 1(or K2) disconnect K switch 2(or K1) during conducting, rectifier diode D1(or D2) unilateal conduction, the voltage at electric light SD two ends is about half of supply voltage, and electric light SD is luminous, but luminosity reduces half approximately.
Among Fig. 2, seal in fuse RD1, RD2, rectifier diode D1, D2 are carried out overcurrent protection at negative pole one end of rectifier diode D1, D2.When fuse RD1, RD2 were disconnected, K switch 1, K2 were identical with regular tap, can control the on/off of two electric lights respectively.
Among Fig. 3, Fig. 4, rectifier diode D1, D2 and fuse RD1, RD2 are separately fixed on the wiring board XLB, wiring board XLB is fixed among the shell WK, 2 of A, B join by wiring hole X1 and power supply, 2 of C, D join by wiring hole X2 and electric light, 2 of A, C and K switch 1 are joined, and 2 of B, D and K switch 2 are joined.
Claims (2)
1, a kind of switch that can change the electric light luminosity, in insulation crust, two rectifier diodes respectively with two switch in parallel, it is characterized in that: an end and the power supply of two rectifier diode identical polars join, the other end and the electric light of two rectifier diode identical polars join.
2, the switch that can change the electric light luminosity according to claim 1 is characterized in that: any end at two rectifier diodes can be connected in series fuse respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94206468 CN2189777Y (en) | 1994-03-09 | 1994-03-09 | Light-changeable switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94206468 CN2189777Y (en) | 1994-03-09 | 1994-03-09 | Light-changeable switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2189777Y true CN2189777Y (en) | 1995-02-15 |
Family
ID=33825071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94206468 Expired - Fee Related CN2189777Y (en) | 1994-03-09 | 1994-03-09 | Light-changeable switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2189777Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108811259A (en) * | 2015-09-25 | 2018-11-13 | 深圳迈睿智能科技有限公司 | A kind of method and inductor being placed in detection natural light in Led lamps and lanterns |
-
1994
- 1994-03-09 CN CN 94206468 patent/CN2189777Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108811259A (en) * | 2015-09-25 | 2018-11-13 | 深圳迈睿智能科技有限公司 | A kind of method and inductor being placed in detection natural light in Led lamps and lanterns |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |