CN210536605U - Single-fire switch circuit - Google Patents
Single-fire switch circuit Download PDFInfo
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- CN210536605U CN210536605U CN201922300514.XU CN201922300514U CN210536605U CN 210536605 U CN210536605 U CN 210536605U CN 201922300514 U CN201922300514 U CN 201922300514U CN 210536605 U CN210536605 U CN 210536605U
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Abstract
The utility model provides a single-fire switch circuit, which comprises a switch module, wherein the switch module comprises an on-state power supply, an off-state power supply and a switch device; the first end of the switch device is connected with a live wire terminal, the second end of the switch device is connected with one end of the on-state power supply, the other end of the on-state power supply is connected with one end of a load, and the other end of the load is connected with a zero line; the off-state power supply is connected with the switching device in parallel, a rectifying unit is arranged between the live wire terminal and a load, and the output voltage of the on-state power supply is higher than that of the off-state power supply; the utility model discloses an output voltage of on-state power is higher than the output voltage of off-state power, and when some switch return circuit or a plurality of return circuits were opened, its on-state voltage was higher than off-state voltage, can ensure like this that the off-state power is out of work, and the return circuit that consequently can stop not opening in the multiple switch causes the phenomenon of load lamp sudden strain of a muscle to take place because of the electric leakage.
Description
Technical Field
The utility model relates to an electricity field especially relates to switch circuit, especially a single fire switch circuit.
Background
With the development of science and technology and the progress of society, the smart home market is windy and cloudy, a novel smart home scheme is continuously published, and an intelligent switch is widely applied as a basic smart home component; because domestic switch wiring all is a live wire, consequently, intelligence switch most all is single fire switch, though the type of current single fire switch has been more, can satisfy most user demands, nevertheless can have following problem often in the practical application scene: the existing single fire switch is usually used in a multi-loop switch circuit, when a switch of one loop or a plurality of loops is turned on, a flicker (ghost fire) problem occurs to a load lamp of the loop which is not turned on, so that the application of the single fire multi-path switch is greatly limited.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a single fire switch circuit for solving the problem in the prior art that when a switch of one or more loops is turned on, the non-turned-on loop load lamp will flicker, so that the application of the single fire multi-way switch is greatly limited.
To achieve the above and other related objects, the present invention provides a single fire switch circuit, including: a switch module comprising an on-state power supply, an off-state power supply, and a switching device; the first end of the switch device is connected with a live wire terminal, the second end of the switch device is connected with one end of the on-state power supply, the other end of the on-state power supply is connected with one end of a load, and the other end of the load is connected with a zero line; the off-state power supply is connected with the switching device in parallel, a rectifying unit is arranged between the live wire terminal and the load, and the output voltage of the on-state power supply is higher than that of the off-state power supply.
In an embodiment of the present invention, the control end of the switch device is connected to a control unit, the control unit is connected to an input unit, the input unit is used for inputting the switch actuating signal to the control unit, and the control unit is used for inputting the switch control signal to the switch device.
In an embodiment of the present invention, the on-state power supply and the off-state power supply equally divide and do not do through the diode the control unit the input unit supplies power.
In an embodiment of the present invention, the input unit is an RF or dual control circuit.
In an embodiment of the present invention, the input unit adopts a key or an induction mode to input the switch action signal to the control unit.
In an embodiment of the present invention, the key mode adopts a touch key.
In an embodiment of the present invention, the sensing mode adopts touch sensing.
In an embodiment of the present invention, the number of the switch modules is at least one.
In an embodiment of the present invention, the rectifying unit adopts a bridge rectifier circuit.
As mentioned above, the single fire switch circuit of the utility model has the following beneficial effects:
the output voltage of the on-state power supply is higher than that of the off-state power supply, and when one or more circuits of a switch are switched on, the on-state voltage is higher than the off-state voltage, so that the off-state power supply can be ensured not to work, and the phenomenon of load lamp flashing (ghost fire) caused by electric leakage of the circuits which are not switched on in the multi-circuit switch can be avoided.
Drawings
Fig. 1 is a schematic structural diagram of a single fire switch circuit according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
The utility model discloses a single fire switch circuit adopts the output voltage of on-state power to be higher than the output voltage of off-state power, and when a certain switch return circuit or a plurality of return circuits were opened, its on-state voltage was higher than off-state voltage, can ensure like this that the off-state power is out of work, and the return circuit that consequently can stop not opening in the multiple switch causes the phenomenon of load lamp sudden strain of a muscle (ghost fire) to take place because of the electric leakage.
The single fire switch circuit of the present invention will be explained in detail with reference to fig. 1.
As shown in fig. 1, in an embodiment, the single-fire switch circuit of the present invention includes a switch module, and the switch module includes an on-state power supply, an off-state power supply and a switch device.
In one embodiment, the number of the switch modules is at least one.
Specifically, the number of switch modules depends on the number of switch loops in the multi-loop switch circuit; in the present embodiment, it is assumed that the number of the switch modules is three, i.e. the switch circuits form a three-loop.
Specifically, a first end of the switching device is connected to a live LINE terminal LINE, a second end of the switching device is connected to one end of the on-state power supply, and an output VCC1 of the on-state power supply supplies power to the control unit through a diode; the other end of the on-state power supply is connected with one end of a LOAD, and the other end of the LOAD is connected with a zero line; when the switching device is switched on, the commercial power current flows through the live wire terminal LINE sequentially through the switching device, the on-state power supply and the LOAD LOAD to the zero LINE.
Specifically, the off-state power supply is connected in parallel with the switching device, and a rectifying unit is arranged between the live wire terminal LINE and the LOAD; when the switching device is turned off, micro electric leakage on the LOAD sequentially passes through the live wire terminal LINE, the rectifying unit, the off-state power supply and the LOAD to the zero LINE.
Specifically, the output voltage of the output terminal VCC1 of the on-state power supply is higher than the output voltage of the output terminal VCC2 of the off-state power supply, for example, the voltage of VCC1 is 0.5-2V higher than the voltage of VCC 2.
It should be noted that the output voltage of the on-state power supply is higher than that of the off-state power supply, and when a certain switch loop or multiple loops are turned on, the on-state voltage is higher than that of the off-state power supply, so that the off-state power supply can be ensured not to work, and the phenomenon of LOAD lamp flashing (ghost fire) caused by electric leakage of the loops which are not turned on in the multi-path switch can be avoided.
In an embodiment, a control terminal of the switching device is connected to a control unit (e.g., a control circuit in fig. 1), the control unit is connected to an input unit, the input unit is configured to input a switching operation signal to the control unit, and the control unit is configured to input a switching control signal to the switching device.
Specifically, the input unit is configured to input a switching action signal to the control unit, and the control unit receives the switching action signal, generates a control signal corresponding to the switching action signal, and sends the control signal to the switching device, so as to control the switching device to be turned on and off.
In an embodiment, the on-state power supply and the off-state power supply respectively supply power to the control unit and the input unit through diodes.
Specifically, the output terminal VCC1 of the on-state power supply and the output terminal VCC2 of the off-state power supply are respectively supplied with power through the diode to the control unit and the input unit.
In one embodiment, the input unit is an RF or dual control circuit.
In one embodiment, the input unit inputs the switch action signal to the control unit in a key or induction mode.
In one embodiment, the key mode is a touch key.
Specifically, the switch action signal is generated on the input unit by touching a key.
In one embodiment, the sensing manner is touch sensing.
Specifically, the switch action signal is generated on the input unit in a touch sensing manner.
In an embodiment, the rectifying unit employs a bridge rectifying circuit.
Specifically, the bridge rectifier circuit includes diodes D1 (a diode between the end points 1 and 2 in fig. 1), D2 (a diode between the end points 1 and 4 in fig. 1), D3 (a diode between the end points 2 and 3 in fig. 1), and D4 (a diode between the end point 3 and the end point 4 in fig. 1)), an anode of D1 is connected to an anode of the off-state power supply and D3, respectively, a cathode of D1 is connected to an anode of the LOAD and D2, a cathode of D2 is connected to a cathode of the off-state power supply and D4, an anode of D4 is connected to a cathode of D3 and the firewire terminal LINE, respectively, and the firewire terminal LINE is a ground inside the circuit.
To sum up, the utility model discloses a single fire switch circuit, the output voltage that adopts the on-state power is higher than the output voltage of off-state power, and when a certain switch return circuit or a plurality of return circuits were opened, its on-state voltage was higher than off-state voltage, can ensure like this that the off-state power is out of work, and the return circuit that consequently can stop not opening in the multiple switch causes the phenomenon of LOAD LOAD lamp sudden strain of a muscle (ghost fire) to take place because of the electric leakage. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and therefore, the present invention is considered to be illustrative and not restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, without any reference thereto being construed as limiting the claim concerned.
Claims (9)
1. A single fire switch circuit, comprising: a switch module comprising an on-state power supply, an off-state power supply, and a switching device;
the first end of the switch device is connected with a live wire terminal, the second end of the switch device is connected with one end of the on-state power supply, the other end of the on-state power supply is connected with one end of a load, and the other end of the load is connected with a zero line; the off-state power supply is connected with the switching device in parallel, a rectifying unit is arranged between the live wire terminal and the load, and the output voltage of the on-state power supply is higher than that of the off-state power supply.
2. A single fire switch circuit according to claim 1, wherein a control terminal of the switching device is connected to a control unit, the control unit is connected to an input unit, the input unit is configured to input a switching operation signal to the control unit, and the control unit is configured to input a switching control signal to the switching device.
3. The single fire switch circuit of claim 2 wherein the on-state power supply and the off-state power supply each provide power to the control unit and the input unit through a diode, respectively.
4. A single fire switch circuit as claimed in claim 2 wherein the input unit is an RF or dual control circuit.
5. A single fire switch circuit as claimed in claim 2, wherein the input unit is arranged to input a switch actuation signal to the control unit in a push button or inductive manner.
6. A single fire switch circuit as claimed in claim 5 wherein the key means is a touch key.
7. A single fire switch circuit as claimed in claim 5 wherein the sensing means is touch sensing.
8. A single fire switch circuit as claimed in claim 1 wherein the number of switch modules is at least one.
9. The single fire switch circuit according to claim 1, wherein the rectifier unit employs a bridge rectifier circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201922300514.XU CN210536605U (en) | 2019-12-19 | 2019-12-19 | Single-fire switch circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201922300514.XU CN210536605U (en) | 2019-12-19 | 2019-12-19 | Single-fire switch circuit |
Publications (1)
Publication Number | Publication Date |
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CN210536605U true CN210536605U (en) | 2020-05-15 |
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CN201922300514.XU Active CN210536605U (en) | 2019-12-19 | 2019-12-19 | Single-fire switch circuit |
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CN (1) | CN210536605U (en) |
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2019
- 2019-12-19 CN CN201922300514.XU patent/CN210536605U/en active Active
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Effective date of registration: 20200605 Address after: 315311 CiDong Binhai District, Longshan Town, Cixi City, Ningbo City, Zhejiang Province Patentee after: NINGBO BULL ELECTRICAL APPLIANCE Co.,Ltd. Address before: 201614 Shanghai City, Songjiang District Port Road No. 518 Building 1 floor 2 Patentee before: SHANGHAI XIAOWEI TECHNOLOGY Co.,Ltd. |