CN213877950U - Control circuit and control switch - Google Patents

Abstract

The utility model discloses a control circuit and control switch relates to switch technical field for reduce the step of installing control switch under the wiring mode of difference. The control circuit comprises a relay, a single-fire off-state power taking module, a single-fire on-state-zero-fire power taking module, a relay driving module, a fire fighting module and a load end; the first end of the relay is respectively connected with the first end and the load end of the single-fire off-state power taking module, the second end of the relay is connected with the first end of the single-fire on-state-zero-fire power taking module, the third end of the relay is connected with the fire fighting module, and the fourth end of the relay is connected with the first end of the relay driving module; the second end of the single-fire off-state power taking module is also connected with the load end, and the first end of the single-fire off-state power taking module is connected with the first end of the control module; the second end of the single-fire on-state zero-fire electricity taking module is provided with a zero line connecting end, the third end of the single-fire on-state zero-fire electricity taking module is provided with a live line connecting end, and the fourth end of the single-fire on-state zero-fire electricity taking module is connected with the second end of the control module; and the third end of the control module is connected with the second end of the relay driving module.

Description

Control circuit and control switch

Technical Field

The utility model relates to the technical field of switches, especially, relate to a control circuit and control switch.

Background

At present, the circuit wiring of buildings mainly comprises two modes of single live wire wiring and zero live wire wiring. The single live wire wiring means that only the live wire is connected to the control switch. Zero live wire wiring means that both the live wire and the zero wire are connected to the control switch. Therefore, when the control switch is attached, the user needs to determine the wiring system in the room and select the control switch corresponding to the wiring system. For example, if a single live wire is wired indoors, a single live wire power-taking control switch needs to be installed; if the indoor zero-live wire wiring is adopted, a zero-live wire power-taking control switch needs to be installed.

However, in the case where the control switch needs to be installed at a plurality of places in the building, if the building has the two wiring methods, the user needs to first confirm the wiring method at the place where the control switch is installed before installing the control switch. Then, the user can select the corresponding control switch according to the wiring manner for installation. Therefore, the installation process of the control switch is relatively complicated.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a control circuit and control switch for reduce the step of installing control switch under the wiring mode of difference.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

in a first aspect, a control circuit is provided, which includes a relay, a single-fire off-state power-taking module, a single-fire on-state-zero-fire power-taking module, a relay driving module, a fire-fighting module, a control module, and a load terminal; the first end of the relay is respectively connected with the first end of the single-fire off-state power taking module and the load end, the second end of the relay is connected with the first end of the single-fire on-state-zero-fire power taking module, the third end of the relay is connected with the fire-fighting module, and the fourth end of the relay is connected with the first end of the relay driving module; the second end of the single-fire off-state power taking module is also connected with the load end, and the first end of the single-fire off-state power taking module is connected with the first end of the control module; the second end of the single-fire on-state and zero-fire electricity taking module is provided with a live wire connecting end, the third end of the single-fire on-state and zero-fire electricity taking module is provided with a zero wire connecting end, and the fourth end of the zero-fire electricity taking module is connected with the second end of the control module.

Based on the utility model discloses a control circuit, the load end can be used for connecting the consumer. When the wiring mode of the building is a single-live-wire wiring mode, a user can connect the live-wire connecting end with the live wire; when the wiring mode of the building is a zero-live wire wiring mode, a user can connect the live wire connecting section with the live wire and connect the zero wire connecting section with the zero wire. Based on the technical scheme of this application, the user can use a control switch, satisfies the demand of the different wiring modes of building, and is simple and convenient.

In a possible design, under the single live wire power mode, the live wire link is used for connecting the live wire, and the load end is used for connecting the consumer.

Based on this possible design, the user can select corresponding connected mode, and is simple and convenient under the single fire gets the electric mode.

In a possible design, under the electricity mode is got to zero fire, the live wire link is used for connecting the live wire, and the zero line link is used for connecting the zero line, and the load end is used for connecting the consumer.

Based on this possible design, the user can select corresponding connected mode, and is simple and convenient under zero-fire electricity-taking mode.

In one possible design, the live wire connection end is connected with the zero line connection end through a thyristor.

Based on this possible design, can avoid zero line and live wire to directly link, prevent the phenomenon of short circuit.

In one possible design, both the live wire connection end and the load end are connected through the same rectifier bridge in the single live wire power mode and in the zero live wire power mode.

Based on the possible design, the use of components and parts can be reduced, and the cost is reduced.

In a second aspect, a control switch is provided, where the control switch includes the control circuit of the first aspect and any one of the possible implementations of the first aspect.

In a third aspect, a control circuit is provided, which comprises a relay, a single-fire off-state power-taking module, a single-fire on-state power-taking module, a zero-fire power-taking module, a relay driving module, a fire-fighting module, a control module, a first load end and a second load end; the first end of the relay is connected with the second end of the single-fire on-state power taking module and the second load end respectively, the second end of the relay is connected with the first end of the zero-fire power taking module, the second end of the relay is also provided with a fire wire connecting end, the third end of the relay is connected with the fire fighting module, and the fourth end of the relay is connected with the first end of the relay driving module; the first end of the single-fire off-state power taking module is connected with the first end of the single-fire on-state power taking module, the second end of the single-fire off-state power taking module is connected with the first load end, and the third end of the single-fire off-state power taking module is connected with the first end of the control module; the second end of the single-fire-on-state electricity-taking module is also connected with the second load end, and the third end of the single-fire-on-state electricity-taking module is connected with the first end of the control module; the second end of the zero-fire electricity taking module is provided with a zero line connecting end, and the third end of the zero-fire electricity taking module is connected with the second end of the control module; and the third end of the control module is connected with the second end of the relay driving module.

Based on the utility model discloses a control circuit, first load end and second load end can be used for connecting consumer. When the wiring mode of the building is a single-live-wire wiring mode, a user can connect the live-wire connecting end with the live wire; when the wiring mode of the building is a zero-live wire wiring mode, a user can connect the live wire connecting section with the live wire and connect the zero wire connecting section with the zero wire. Based on the technical scheme of this application, the user can use a control switch, satisfies the demand of the different wiring modes of building, and is simple and convenient.

In a possible design, under the mode is got to single fire, first load end is used for connecting the consumer, and the live wire link is used for connecting the live wire.

Based on this possible design, the user can select corresponding connected mode, and is nimble convenient under the single fire gets the electric mode.

In a possible design, under the zero-fire electricity-taking mode, the second load end is used for connecting electric equipment, the live wire connecting end is used for connecting a live wire, and the zero line connecting end is used for connecting a zero line.

Based on this possible design, the user can select corresponding connected mode, and is nimble convenient under the zero fire gets the electric mode.

In one possible design, the first load terminal and the second load terminal are connected to the live connection terminal when the relay is in the first connection state; when the relay is in the second connection state, the first load end and the second load end are connected with the fire fighting module.

Based on this possible design, can guarantee when the live wire link breaks down, can be for the consumer power supply through the power of fire control end.

In one possible design, a fuse is provided between the live wire connection end and the zero-fire electricity taking module.

Based on the possible design, the voltage of the power supply of the live wire end can be prevented from being overlarge, and damage to the control circuit can be prevented.

In a fourth aspect, a control switch is provided, which includes the control circuit of the first aspect and any one of the possible implementations of the first aspect.

The control switches provided above are all used to execute the corresponding control circuits provided above, and therefore, the beneficial effects that can be achieved by the control switches can refer to the beneficial effects of the corresponding schemes in the corresponding control circuits provided above, and are not described herein again.

Drawings

Fig. 1 is a schematic structural diagram of a control circuit 100 according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another control circuit 100 according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another control circuit 200 according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another control circuit 200 according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a low dropout regulator (LDO) according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a chip dedicated for a human body infrared sensor and a human body infrared sensor module provided in an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an illuminance detection module according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a sensitivity adjustment module according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a delay time adjustment module according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to adapt to different wiring modes of a building, a manufacturer needs to produce control switches with different power taking modes. For example, when the wiring mode is a single-live-wire wiring mode, the control switch is a single-live-wire power-taking-control switch. When the wiring mode is a zero-live wire wiring mode, the control switch is a zero-live wire power supply-control switch. The single live wire power-taking control switch may refer to a control switch having a live wire access end and no zero line access end. The zero live wire power-taking control switch can be a control switch with a live wire access end and a zero line access end.

Therefore, a user needs to select a corresponding control switch of the power taking mode to install the control switch according to the wiring mode of the building, and the installation is complicated.

In order to solve the above problem, an embodiment of the present application provides a control circuit, which is applied to a control switch. The control circuit may have a single fire power module and a zero fire power module. The single live wire power taking module is provided with a load end and is used for connecting electric equipment. The zero-fire electricity taking module is provided with a live wire connecting end and a zero line connecting section. Therefore, when the wiring mode of the building is a single-live-wire wiring mode, a user can connect the live-wire connecting end with the live wire; when the wiring mode of the building is a zero-live wire wiring mode, the user can connect the live wire connecting section with the live wire and connect the zero wire connecting section with the zero wire. Based on the technical scheme of this application, the user can use a control switch, satisfies the demand of the different wiring modes of building, and is simple and convenient.

The control switch according to the embodiment of the present application may be a control switch (also referred to as an electronic switch) that requires a power supply, for example, an infrared inductive switch, a photosensitive switch, a voice-operated switch, a sensitive switch, a time-delay switch, and the like, without limitation. The electric equipment that this application embodiment relates to can be lighting apparatus (like the electric light), disinfecting equipment (like ultraviolet ray disinfecting equipment), blowing equipment (like air conditioner, drying-machine etc.), sound equipment (like alarm, player etc.), not the restriction. The electronic switch can also be a component or a circuit of the electronic switch without limitation.

In an example, as shown in fig. 1, a control circuit 100 is provided in an embodiment of the present application. The control circuit 100 may include a relay 101, a single fire off power module 102, a single fire on-zero power module 103, a relay driver module 104, a fire protection module 105, a control module 106, and a load terminal 107.

The first end of the relay 101 is connected to the second end of the single fire off-state power-taking module 102 and the load end 107, respectively. The second terminal of the relay 101 is connected to the first terminal of the single-fire on-zero-fire electricity-taking module 103. The third terminal 105 of the relay 101 is connected to the fire fighting module 105. The fourth terminal of the relay 101 is connected to the first terminal of the relay drive module 104.

The second terminal of the single fire off state power taking module 102 is further connected to the load terminal 107. The first terminal of the single fire off state power-taking module 102 is connected to the first terminal of the control module 107.

Wherein, the second end of the single-fire on-state-zero-fire electricity taking module 103 is provided with a zero line connecting end. And a live wire connecting end is arranged at the third end of the single-fire on-state zero-fire electricity taking module 103. The fourth terminal of the single fire on-zero fire electricity taking module 103 is connected to the second terminal of the control module 107.

The third terminal of the control module 106 is connected to the second terminal of the relay driver module 104.

The following describes the functions of the various blocks in the control circuit 100 of fig. 1:

1. the fire protection module 105 may be used to provide fire protection centralized control functions, for example, power may be provided to the powered device to power the powered device.

In one example, the other end of the fire module 105 may be connected to a fire line or to a power source device (e.g., a battery). When the first end of the relay 101 is connected to the third end, the fire fighting module 105 can be connected to the electric device, and further, can provide power for the electric device.

2. The relay driver module 104 may control the closed state of the relay 101 according to the input level. For example, when the level of the input terminal of the relay driving module 104 is a first level, the first terminal and the second terminal of the relay 101 may be connected. When the level of the input terminal of the relay driving module 104 is the second level, the first terminal and the third terminal of the relay 101 may be connected.

It should be noted that when the first terminal and the second terminal of the relay 101 are connected (i.e., in the first connection state), the live wire may be connected to the electric device, so as to supply power to the electric device. When the first terminal of the relay 101 is connected to the third terminal (i.e., in the second connection state), the fire fighting module 105 may be connected to the electric device, and may energize the electric device.

3. The relay 101 may control the power supply of the user equipment. Specifically, reference may be made to the description in the relay driving module 104, which is not repeated.

4. The single fire off state power module 102 may be used to provide power to the control module 106 when a single fire is powered.

5. The single fire on-zero fire power module 103 may be configured to provide power to the control module 106 during zero fire power.

For example, when the wiring mode of the building is single fire wiring, the live wire connection end can be connected with the live wire, and the neutral wire connection end can be vacant. Or, for safety, can protect the zero line link and deal with, for example, the live wire link can be provided with protection device, e.g., waterproof adhesive tape, plastic sheath etc..

The specific structure of the single-fire on-zero-fire electricity taking module 103 and the included components can be described with reference to fig. 2, which is not described herein again.

6. The control module 106 may be used for signal detection. For example, the sensor module may be a human body infrared dedicated chip, a human body infrared sensor module, a illuminance detection module, a sensitivity adjustment module, a delay time adjustment module, or the like, without limitation.

The following describes a connection method of the control circuit 100 of fig. 1 in different wiring schemes:

1. when the wiring mode is single fire power, the load end can be connected with electric equipment. The live wire connection end can be connected with the live wire. The neutral connection end is not wired.

2. When the wiring mode is zero fire power taking, the load end can be connected with electric equipment. The live wire connection end can be connected with the live wire. The neutral connection end may be connected to a neutral.

Based on the control circuit of fig. 1, the user can select different connection modes according to the wiring mode of the building. The control circuit that this application embodiment provided can adapt to current single fire and get electric mode and zero fire and get the electric module. The user does not need to distinguish the power taking mode of the control switch, and the installation steps of the control switch are reduced.

In a specific implementation, components included in each module in the control circuit 100 provided in the embodiment of the present application and a connection manner of the components may refer to fig. 2 below.

Fig. 2 provides a specific structure of the various modules of the control circuit 100 of fig. 1 and the components included therein.

As shown in fig. 2, the single fire off state power-taking module 102 may include a diode D1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a transistor Q1, a transistor Q2, and a rectifier diode DZ 1. The connection relationship among the diode D1, the resistors R1-R4, the transistor Q1, the transistor Q2, and the rectifier diode DZ1 is shown in fig. 2, and is not described in detail. The sizes of the diode D1, the resistors R1-R4, the transistor Q1, the transistor Q2 and the rectifier diode DZ1 can be set as required, without limitation.

The relay driving module 104 may include a diode D2, a transistor Q3, a resistor R6, a resistor R7, and a signal terminal OUT. The connection relationship between the diode D2, the transistor Q3, the resistor R6, and the resistor R7 can be as shown in fig. 2, and is not repeated. The sizes of the diode D2, the transistor Q3, the resistor R6 and the resistor R7 can be set as required, and are not limited.

When the level of the signal terminal OUT is high, the transistor Q3 is turned on, and the relay coil is energized, so that the first terminal and the second terminal of the relay 101 can be connected. When the level of the signal terminal OUT is low, the transistor Q3 is not turned on, and the relay coil is turned off, so that the first terminal and the third terminal of the relay 101 may be connected. The high level and the low level can be set according to the requirement, for example, the high level is 3 volts (V), and the low level is 0V, which is not limited.

The single fire on-zero fire electricity taking module 103 may include a silicon controlled rectifier1 (SCR 1), a rectifier diode DZ2, a rectifier diode DZ3, a rectifier diode DZ4, a rectifier bridge B1, and a capacitor E1. The connection relationship among the SCR1, the rectifier diode DZ2, the rectifier diode DZ3, the rectifier diode DZ4, the rectifier bridge B1, and the capacitor E1 can be as shown in fig. 2, and is not described in detail. The sizes of the SCR1, the rectifier diode DZ2, the rectifier diode DZ3, the rectifier diode DZ4, the rectifier bridge B1 and the capacitor E1 can be set as required, and are not described in detail.

The single-fire on-state-zero-fire electricity taking module 103 may further include a resistor R8 and a capacitor C2 between the zero-fire connection ends. The connection relationship between the resistor R8 and the capacitor C2 can be as shown in fig. 3, and is not described in detail. The sizes of the resistor R8 and the capacitor C2 can be set according to needs, and are not described in detail.

In fig. 2, the neutral connection and the live connection may be connected by an SCR 1. Thus, in a single-fire power mode (e.g., a single-fire on-state power mode) and in a zero-fire power mode, the live line connection terminal may be connected to the load terminal through the same rectifier bridge B1. Therefore, compared with the prior art, the number of rectifier bridges can be reduced, and the cost is reduced.

The fire module 105 may include fire connection terminals and a negative temperature coefficient thermistor 1 (NTC). The size of the NTC1 can be set according to needs, and is not limited.

In another example, as shown in fig. 3, another control circuit 200 according to an embodiment of the present disclosure is provided. The control circuit 200 may include a relay 201, a single fire off state power taking module 202, a single fire on state power taking module 203, a zero fire power taking module 204, a relay driving module 205, a fire fighting module 206, a control module 207, a first load terminal 208, and a second load terminal 209.

The first end of the relay 201 is connected to the second end of the single-fire-on-state power-taking module 203 and the second load end 209, respectively. The second end of the relay 201 is connected with the first end of the zero fire electricity taking module 203. The second end of the relay 201 is also provided with a live connection. The third terminal of the relay 201 is connected with the fire fighting module 206. The fourth terminal of the relay 201 is connected to the first terminal of the relay drive module 205.

Wherein, the first terminal of the single-fire off-state power-taking module 202 is connected with the first terminal of the single-fire on-state power-taking module 203. The second terminal of the single fire off state power module 202 is connected to the first load terminal 208. The third terminal of the single fire off state power-taking module 202 is connected with the first terminal of the control module 207.

The second terminal of the single fire on state power-taking module 203 is further connected to the second load terminal 209. The third terminal of the single fire on state power-taking module 203 is connected with the first terminal of the control module 207.

And a second end of the zero-fire electricity taking module 204 is provided with a zero line connecting end. The third end of the zero fire electricity taking module 204 is connected with the second end of the control module 207.

Wherein, the third terminal of the control module 207 is connected with the second terminal of the relay driving module 205.

The following describes the functions of the various blocks in the control circuit 200 of fig. 3:

1. the functions of the fire fighting module 206 can refer to the description of the fire fighting module 105 in fig. 1, and are not repeated.

2. The functions of the relay driving module 205 can refer to the description of the relay driving module 104 in fig. 1, and are not repeated.

3. The function of the relay 201 can refer to the description of the relay 101 in fig. 1, and is not repeated.

4. Both the single fire off power-on module 202 and the single fire on power-on module 203 may be configured to provide power to the control module 207 during the single fire power-on mode.

5. The zero fire power module 204 may be configured to provide power to the control module 207 during the zero fire power mode.

The specific structure of the zero-fire electricity taking module 204 and the included components can be described with reference to fig. 4, which is not described herein again.

6. The functions of the control module 207 can refer to the description of the control module 106 in fig. 1, and are not repeated.

7. The first load end 208 may also be referred to as a single fire load. The second load terminal 209 may also be referred to as a zero fire load. The first load terminal 208 is used for connecting with an electric device in a single live mode. The second load terminal 209 is used for connecting with the electric equipment in the zero-fire electricity-taking mode.

In one possible design, different load ends may have different colors to facilitate user identification of the different load ends. For example, the first load terminal may be red and the second load terminal may be blue. Of course, the different loads may be distinguished by other colors or in other ways, for example, different numbers or characters may be marked on different loads, without limitation.

The following describes a connection method of the control circuit 200 of fig. 2 in different wiring schemes:

1. when the wiring manner is single fire electricity taking, the first load end 208 is connected with the electric equipment. The live wire connecting end is connected with the live wire. The neutral connection end is not wired.

2. When the wiring method is zero fire electricity taking, the second load terminal 209 can be connected with an electric device. The live wire connection end can be connected with the live wire. The neutral connection end may be connected to a neutral.

When the control circuit of fig. 1 and 3 is connected to the circuit, the fire fighting module 105 needs to be connected to a fire line.

Based on the control circuit of fig. 3, the user can select different connection modes according to the wiring mode of the building. The control circuit that this application embodiment provided can adapt to current single fire and get the electric mode and the zero fire gets the electric mode. The user does not need to distinguish the power taking mode of the control switch, and the installation steps of the control switch are reduced.

Fig. 4 provides a specific structure of the modules of the control circuit 200 of fig. 3 and the components included therein.

As shown in fig. 4, specific structures and included components of the single fire on state power-taking module 203, the relay driving module 205, and the fire fighting module 206 may refer to specific structures and included components of the single fire on state power-taking module 102, the relay driving module 104, and the fire fighting module 105 in fig. 2, and are not described in detail.

The single fire on state power module 203 may include an SCR2, a rectifier diode DZ4, a rectifier diode DZ5, and a rectifier bridge B2. The connection modes of the SCR2, the rectifier diode DZ4, the rectifier diode DZ5, and the rectifier bridge B2 can be shown in fig. 4, and are not described in detail. The sizes of the SCR2, the rectifier diode DZ4, the rectifier diode DZ5, and the rectifier bridge B2 may be set as needed, and are not described in detail.

It should be noted that the output voltage of the single fire on state power taking module 203 is a voltage that is stepped down by a thyristor and rectified and filtered. The output voltage of the single fire off state power taking module 202 is the voltage after current limiting and voltage reducing by the triode. For example, the output voltage of the single fire on power module 203 and the output voltage of the single fire off power module 202 may be 12V.

The zero fire electricity taking module 204 may include a rectifier bridge B3, a rectifier diode DZ6, and a capacitor E2. The connection manner of the rectifier bridge B3, the rectifier diode DZ5, and the capacitor E2 can be shown in fig. 4, and is not described in detail. The sizes of the rectifier bridge B3, the rectifier diode DZ5 and the capacitor E2 can be set according to the needs, without limitation.

It should be noted that the single-hot-zero-hot power module 103 in fig. 2 may be a combination of the single-hot-on-state power module 203 in fig. 4 and the zero-hot power module 204 in fig. 4. That is, the single fire on-state power-taking module 203 in fig. 4 and the zero fire power-taking module 204 in fig. 4 may share the same rectifier bridge (e.g., the rectifier bridge B2 and the rectifier bridge B3 in fig. 4 may be combined into the rectifier bridge B1 in fig. 2). Based on this design, can reduce the quantity that uses components and parts, reduce cost.

In addition, in order to ensure safety, as shown in fig. 4, a fuse F1 may be further disposed between the zero line power module 203 and the live line connection end. The fuse F1 can be sized as desired and will not be described in detail.

It should be noted that the single-fire on-zero-fire power-taking module 103, the single-fire off-zero-fire power-taking module 102 in fig. 2, and the zero-fire power-taking module 204, the single-fire on-zero-fire power-taking module 203 and the single-fire off-zero-fire power-taking module 202 in fig. 4 are all provided with a voltage output terminal (VCC). The voltage output may be used to provide voltage to other power consuming modules in the control switch. For example, the control module 207 in fig. 3 may be supplied with a voltage.

In an example, as shown in fig. 5 to 9, an embodiment of the present application further provides a schematic structural diagram of the control module 106 or the control module 207.

For example, fig. 5 is a schematic structural diagram of an LDO according to an embodiment of the present application. As shown in fig. 5, the LDO includes a resistor R9, a capacitor E3, a capacitor E4, a chip, a capacitor C3, and a capacitor C4. The connection of the resistor R9, the capacitor E3, the capacitor E4, the chip, the capacitor C3 and the capacitor C4 can be as shown in fig. 5, and will not be described again. The sizes of the resistor R9, the capacitor E3, the capacitor E4, the chip, the capacitor C3 and the capacitor C4 can be set according to the needs, and are not limited.

For another example, fig. 6 is a schematic structural diagram of a human body infrared dedicated chip and a human body infrared sensor module provided in the embodiment of the present application. For example, the human body infrared sensor module may include a pyroelectric infrared sensor (PIR), a resistor R10, a capacitor C5, and a capacitor C6. The connection manner of the PIR, the resistor R10, the capacitor C5 and the capacitor C6 can be shown in fig. 6, and is not described in detail. The sizes of the PIR, the resistor R10, the capacitor C5 and the capacitor C6 can be set according to needs, and are not limited.

For another example, fig. 7 is a schematic structural diagram of an illuminance detection module according to an embodiment of the present application. For example, the illuminance detection module may include a resistor R12, a CDS diode, a resistor R13, and a sliding rheostat. The connection manner of the resistor R12, the photodiode CDS, the resistor R13, and the sliding rheostat can be shown in fig. 7, and is not described in detail. The sizes of the resistor R12, the photodiode CDS, the resistor R13 and the sliding rheostat can be set according to needs without limitation.

For another example, fig. 8 and fig. 9 are schematic structural diagrams of a sensitivity adjustment module and a delay time adjustment module provided in an embodiment of the present application, respectively. For example, the sensitivity adjustment module may include a resistor R14 and a resistor R15. The delay time adjustment module may include a resistor R16 and a resistor R17. The connection manner of the resistor R14 and the resistor R15 can be shown in fig. 8, and is not described in detail. The sizes of the resistor R14 and the resistor R15 can be set according to needs, and are not limited. The connection mode between the resistor R16 and the resistor R17 can be as shown in fig. 9, and is not described in detail. The sizes of the resistor R16 and the resistor R17 can be set according to needs, and are not limited.

The embodiment of the present application also provides a control switch, which may include the control circuit 100 shown in fig. 1 or the control circuit 200 shown in fig. 3. The function of the control switch can be described with reference to the control circuit 100 or the control circuit 200, and is not described herein. The installation place of the control switch can be determined as required, for example, the control switch can be installed in a basement, a corridor, an automatic sterilizing room, and the like.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A control circuit is characterized by comprising a relay (101), a single-fire off-state power-taking module (102), a single-fire on-state-zero-fire power-taking module (103), a relay driving module (104), a fire-fighting module (105), a control module (106) and a load end (107);

a first end of the relay (101) is connected with a second end and a load end (107) of the single-fire off-state power taking module (102), a second end of the relay (101) is connected with a first end of the single-fire on-state-zero-fire power taking module (103), a third end of the relay (101) is connected with the fire fighting module (105), and a fourth end of the relay (101) is connected with a first end of the relay driving module (104);

the second end of the single-fire off-state power-taking module (102) is further connected with a load end (107), and the first end of the single-fire off-state power-taking module (102) is connected with the first end of the control module (106);

a second end of the single-fire on-state and zero-fire electricity taking module (103) is provided with a zero line connecting end, a third end of the single-fire on-state and zero-fire electricity taking module (103) is provided with a live line connecting end, and a fourth end of the single-fire on-state and zero-fire electricity taking module (103) is connected with a second end of the control module (106);

the third end of the control module (106) is connected with the second end of the relay drive module (104).

2. The control circuit according to claim 1, wherein in the single live mode, the live connection terminal is configured to connect to a live line, and the load terminal (107) is configured to connect to an electrical device.

3. The control circuit according to claim 1, wherein in the zero power mode, the live wire connection terminal is used for connecting the live wire, the neutral wire connection terminal is used for connecting the neutral wire, and the load terminal (107) is used for connecting the electric equipment.

4. A control circuit according to any of claims 1 to 3, wherein the live connection is connected to the neutral connection by a thyristor.

5. The control circuit according to claim 4, wherein in the single fire power mode and in the zero fire power mode the live connection terminal is connected to the load terminal (107) through the same rectifier bridge.

6. A control circuit is characterized by comprising a relay (201), a single-fire off-state power-taking module (202), a single-fire on-state power-taking module (203), a zero-fire power-taking module (204), a relay driving module (205), a fire-fighting module (206), a control module (207), a first load end (208) and a second load end (209);

the first end of the relay (201) is connected with the second end of the single-fire on-state power taking module (203) and the second load end (209) respectively, the second end of the relay (201) is connected with the first end of the zero-fire power taking module (204), the second end of the relay (201) is also provided with a live wire connecting end, the third end of the relay (201) is connected with the fire fighting module (206), and the fourth end of the relay (201) is connected with the first end of the relay driving module (205);

a first end of the single-fire off-state power taking module (202) is connected with a first end of the single-fire on-state power taking module (203), a second end of the single-fire off-state power taking module (202) is connected with the first load end (208), and a third end of the single-fire off-state power taking module (202) is connected with a first end of the control module (207);

the second end of the single-fire-on-state electricity-taking module (203) is also connected with the second load end (209), and the third end of the single-fire-on-state electricity-taking module (203) is connected with the first end of the control module (207);

a second end of the zero-fire electricity taking module (204) is provided with a zero line connecting end, and a third end of the zero-fire electricity taking module (204) is connected with a second end of the control module (207);

the third end of the control module (207) is connected with the second end of the relay drive module (205).

7. The control circuit according to claim 6, wherein in the single hot power mode, the first load terminal (208) is configured to be connected to a consumer, and the hot connection terminal is configured to be connected to a hot wire.

8. The control circuit according to claim 6, wherein in the zero power mode, the second load terminal (209) is configured to be connected to a power consumer, the live connection terminal is configured to be connected to a live wire, and the neutral connection terminal is configured to be connected to a neutral wire.

9. The control circuit according to any of claims 6-8, wherein the first load terminal (208) and the second load terminal (209) are connected to the live connection terminal when the relay (201) is in a first connection state;

the first load terminal (208) and the second load terminal (209) are connected with the fire fighting module (206) when the relay (201) is in a second connection state.

10. A control switch, characterized in that it comprises a control circuit according to any of claims 1-4 or 6-9.

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