Circuit timing device and timing socket

Abstract

The utility model relates to a circuit timing device and a timing socket. The circuit timing device comprises a switch detection module, a timing module and an on-off control circuit. The switch detection module is connected with the timing module and the on-off control circuit, and is used for sensing the on-off state of a load electric appliance so as to output a first signal indicating that the on-off state is on, and outputting a second signal indicating that the on-off state is off; the timing module is connected with the on-off control circuit, and is used for starting timing in response to the first signal, outputting an end signal to the on-off control circuit when the timing is finished, and refreshing the timing in response to the second signal; and the on-off control circuit is connected to a power supply loop where a load electric appliance is located, and is used for switching on the power supply loop in response to the second signal and switching off the power supply loop in response to the end signal. By means of the scheme, the problem that in the prior art, high-frequency starting operation is tedious can be solved.

Description

Technical Field

[0001] This application relates to the field of electrical control technology, and particularly to a circuit timing device and a timing socket. Background Art

[0002] At present, the circuit timing devices on the market are mainly for household scenarios, turning on and off at fixed points, and the functions realized cannot meet some scenarios with more flexible requirements, such as the commercial timing start scenario: the usage frequency in commercial occasions is much higher than that in households, and the usage time is not fixed. After the existing circuit timing device is disconnected and then powered on again, it is necessary to click the start button of the circuit timing device additionally, which increases the complexity of operation. Summary of the Utility Model

[0003] Based on this, a circuit timing device and a timing socket are provided to improve the problem of cumbersome operation in high-frequency start-up in the prior art.

[0004] On the one hand, a circuit timing device is provided. The circuit timing device includes a switch detection module, a timing module, and a switching control circuit.

[0005] The switch detection module is connected to the timing module and the switching control circuit, and is used to sense the switch state of the load electrical appliance to output a first signal indicating that the switch state is on, and output a second signal indicating that the switch state is off.

[0006] The timing module is connected to the switching control circuit, and is used to start timing in response to the first signal and output an end signal to the switching control circuit when the timing ends, and refresh the timing in response to the second signal.

[0007] The switching control circuit is connected to the power supply loop where the load electrical appliance is located, and is used to connect the power supply loop in response to the second signal, and disconnect the power supply loop in response to the end signal.

[0008] In one embodiment, the load electrical appliance is connected between the live wire and the neutral wire, and the switch detection module is arranged between the load electrical appliance and the neutral wire, and is used to detect the change of the voltage or current signal on the neutral wire to output the first signal or the second signal.

[0009] In one embodiment, the switch detection module includes a current detection unit, and the current detection unit is connected to the load electrical appliance and the neutral wire, and is connected in parallel with the switching control circuit.

[0010] In one embodiment, the switch detection module includes a voltage detection unit, and the voltage detection unit is connected to the load electrical appliance and the neutral wire, and is connected in parallel with the switching control circuit.

[0011] In one embodiment, the timing module includes a timer, an operation unit, and a display unit, and both the operation unit and the display unit are connected to the timer.

[0012] In one embodiment, the operation unit is a key setting unit, and the display unit is a digital tube.

[0013] In one embodiment, the on-off control circuit is a relay.

[0014] On the other hand, a timing socket is provided, which includes a circuit timing device.

[0015] The above-mentioned circuit timing device includes a switch detection module, a timing module, and an on-off control circuit. The switch detection module is used to sense the switch state of the load electrical appliance. When the switch state is on, it outputs a first signal. When the switch state is off, it outputs a second signal. The timing module starts timing in response to the first signal, otherwise it refreshes the timing in response to the second signal. The on-off control circuit, when the switch state of the load electrical appliance is off, responds to the second signal to turn on the power supply circuit, so that the load electrical appliance can be started at any time and can be quickly powered on when used next time, meeting the requirements of high-frequency startup; and when the power is on and the timing ends, it responds to the end signal to turn off the power supply circuit to achieve the timing power supply function. Description of the Drawings

[0016] Figure 1 It is a connection schematic diagram of the circuit timing device in one embodiment;

[0017] Figure 2 It is a structural schematic diagram of the circuit timing device in one embodiment.

[0018] The reference numerals in the drawings are as follows: circuit timing device 100, switch detection module 110, timing module 120, timer 121, operation unit 122, display unit 123, on-off control circuit 130, load electrical appliance 200, control switch 210. Detailed Description of the Embodiment

[0019] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0020] It should be noted that the diagrams provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The types, numbers, and ratios of the components in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0021] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0022] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "middle", "longitudinal", "transverse", "horizontal", "inner", "outer", "radial", "circumferential", etc. cited in this specification is based on the orientation or positional relationship shown in the drawings, and is also only for the convenience of simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In some scenarios, the load electrical appliance is used frequently. After the last use and power-off, it may be used again at any time. The existing circuit timing device can only achieve the functions of timing on and timing off, and cannot meet the requirements of such flexible use scenarios.

[0024] This application provides a circuit timing device 100, which can detect whether the load electrical appliance 200 is closed to automatically turn on the power supply and start timing, automatically disconnect after the set time, and continue to detect whether the load electrical appliance 200 is closed after disconnection so as to be able to start the timing function again at any time.

[0025] In one embodiment, the circuit timing device 100 is arranged in the circuit structure as shown in Figure 1 The circuit timing device 100 is connected to the mains power supply, and the load electrical appliance 200 (such as a motor) is powered through the circuit timing device 100.

[0026] As shown in Figure 2 The load electrical appliance 200 is connected between the neutral wire and the live wire of the mains power supply to form a power supply loop. Depending on the type of the load electrical appliance 200, there may also be a ground wire connected to the load electrical appliance 200. The control switch 210 of the load electrical appliance 200 is also connected to the power supply loop between the neutral wire and the live wire, so as to obtain the on / off operation of the user on the load electrical appliance 200.

[0027] It can be understood that due to the existence of the circuit timing device 100, the on and off of the control switch 210 do not directly represent the on and off states of the load electrical appliance 200.

[0028] In this embodiment, the circuit timing device 100 includes a switch detection module 110, a timing module 120, and a switching control circuit 130.

[0029] The switch detection module 110 is connected to the timing module 120 and the switching control circuit 130, and is configured to sense the switch state of the load electrical appliance 200 to output a first signal indicating that the switch state is on, and output a second signal indicating that the switch state is off.

[0030] The switch state of the load electrical appliance 200 is the on or off state of the control switch 210. When the control switch 210 is in the on state, it indicates that the user expects the load electrical appliance 200 to operate. When the control switch 210 is in the off state, it indicates that the user expects the load electrical appliance 200 to be turned off. Therefore, when the user turns on the load electrical appliance 200 through the control switch 210, the switch detection module 110 outputs the first signal, and when the load electrical appliance 200 is turned off, the second signal is output.

[0031] In this embodiment, the switch detection module 110 can monitor the switch state by sensing the electrical influence generated by the control switch 210 in different states on the power supply circuit. Exemplarily, the switch detection module 110 is disposed between the load electrical appliance 200 and the neutral line, and is configured to detect changes in the voltage or current signal on the neutral line to output the first signal or the second signal.

[0032] For example, the switch detection module 110 includes a current detection unit. The current detection unit is connected between the load electrical appliance 200 and the neutral line and is connected in parallel with the switching control circuit 130. When the control switch 210 is turned on (regardless of whether the switching control circuit 130 is turned on), a path is formed among the live wire, the load electrical appliance 200, the current detection unit, and the neutral line. The current detection unit detects a weak current signal between the load electrical appliance 200 and the neutral line, thereby identifying that the control switch 210 of the load electrical appliance 200 is in the on state, and at this time, the first signal can be output; when no current signal is detected, it can be identified that the switch state is off, and the second signal can be output.

[0033] In another way, the switch detection module 110 includes a voltage detection unit. The voltage detection unit is connected between the load electrical appliance 200 and the neutral line and is connected in parallel with the switching control circuit 130. When the control switch 210 is turned on, a path is formed among the live wire, the load electrical appliance 200, the voltage detection unit, and the neutral line. The voltage detection unit detects a weak voltage signal between the load electrical appliance 200 and the neutral line, thereby identifying that the control switch 210 of the load electrical appliance 200 is in the on state, and at this time, the first signal can be output; when no voltage signal is detected, it can be identified that the switch state is off, and the second signal can be output.

[0034] It can be understood that both the current signal and the voltage signal in the switch detection module 110 are weak signals and do not affect the normal startup or shutdown of the load electrical appliance 200.

[0035] The timing module 120 is connected to the on-off control circuit 130 and is configured to start timing in response to the first signal and output an end signal to the on-off control circuit 130 at the end of the timing, and to refresh the timing in response to the second signal.

[0036] It can be understood that when the user turns on the control switch 210 and starts the load electrical appliance 200, the switch detection module 110 outputs the first signal, and the timing module 120 starts timing. When the timing reaches the set time (e.g., 15 minutes), an end signal indicating the end of the timing is output. If during the timing period, the user turns off the control switch 210 and shuts down the load electrical appliance 200, the switch detection module 110 outputs the second signal, and the timing module 120 refreshes the timing. The next time the load electrical appliance 200 is started, the timing starts again.

[0037] The timing module 120 includes a timer 121, an operation unit 122, and a display unit 123. The operation unit 122 and the display unit 123 are both connected to the timer 121. The operation unit 122 is, for example, a button for setting the timing time, and the display unit 123 is, for example, a digital tube. The user first sets the timing time through the button, and the time is displayed through the digital tube.

[0038] The on-off control circuit 130 is connected to the power supply loop where the load electrical appliance 200 is located to control the on-off of the power supply loop. The on-off control circuit 130 is, for example, a relay. The on-off control circuit 130 is configured to turn on the power supply loop in response to the second signal and turn off the power supply loop in response to the end signal.

[0039] The working process of the circuit timing device 100 in the above embodiment is described as follows:

[0040] When the circuit timing device 100 is not connected to the load electrical appliance 200, the switch detection module 110 does not detect the switch state, and it can be regarded that the switch state is off and the second signal is output. The circuit timing device 100 is in the initial state, and the on-off control circuit 130 remains on in response to the second signal. At this time, the timing module 120 does not count.

[0041] The user first sets the timing time through a button, and the time is displayed by a digital tube. After the user connects the load electrical appliance 200 (including the control switch 210) to the circuit timing device 100, the switch detection module 110 can start detecting the switch state. At this time, the control switch 210 is usually in the off state, and the switch detection module 110 outputs a second signal to the on-off control circuit 130. The on-off control circuit 130 responds to the second signal and still connects the power supply circuit, waiting for the load electrical appliance 200 to start at any time. At this time, the timing module 120 does not count.

[0042] When the user starts the load electrical appliance 200, the switch detection module 110 senses that the control switch 210 is turned on, and thus outputs a first signal to the timing module 120. The timing module 120 starts timing. At this time, the on-off control circuit 130 still remains connected to supply power to the load electrical appliance 200. When the timing of the timing module 120 reaches the set timing time, the timing module 120 outputs an end signal to the on-off control circuit 130, and the on-off control circuit 130 turns off the power supply in response to the end signal.

[0043] If the user actively turns off the load electrical appliance 200 (i.e., turns off the control switch 210) before the end of the timing, the switch detection module 110 detects the turn-off of the control switch 210 and outputs a second signal to the timing module 120 and the on-off control circuit 130. The on-off control circuit 130 responds to the second signal and still remains connected, waiting to supply power when the user turns on the load electrical appliance 200 next time. The timing module 120 then refreshes the timing and waits to start timing again when the user turns on the load electrical appliance 200 next time.

[0044] For the circuit timing device 100 provided by this application, when the control switch 210 of the load electrical appliance 200 is turned on, the circuit timing device 100 detects that the load electrical appliance 200 is closed and automatically starts the timing function. When the set time arrives, it automatically disconnects the power supply of the load electrical appliance 200 to stop the load electrical appliance 200 from running; when the control switch 210 is turned off, the circuit timing device 100 detects that the load electrical appliance 200 is disconnected and automatically connects the power supply of the load electrical appliance 200, and waits to start timing again after the next switch. If the control switch 210 is turned off before the set time arrives, the circuit timing device 100 automatically detects that the load electrical appliance 200 is disconnected, performs a reset operation, and waits to start timing again after the next switch. The circuit timing device 100 provided by this application is applicable to scenarios where the load electrical appliance 200 is switched frequently. There is no need to manually turn on the timing of the circuit timing device 100. Each time the load electrical appliance 200 is started, the timing function can be automatically turned on, reducing the complexity of the operation.

[0045] The circuit timing device 100 can be used as an execution carrier for circuit construction. For example, each module / unit can be configured as a component of the product, and the connections between each module / unit can be configured as a determined connection relationship between the components of the product. Signals can be collected, processed, and output through the components of the product to achieve the functions of automatic timing and power on / off. Exemplarily, the switch detection module 110 can use a current or voltage sensor to convert the on and off signals of the control switch 210 into electrical signals. The switch detection module 110, the timing module 120, and the on / off control circuit 130 can also use various units that can implement adjustable signals, such as various single-chip microcomputers, microcontrollers, DSPs (Digital Signal Processors), FPGAs (Field-Programmable Gate Arrays), host computers, or central processing units (CPUs, Central Processing Units). For example, in some embodiments, the on / off control circuit 130 can also use a single-chip microcomputer, and various control functions can be achieved by programming the single-chip microcomputer.

[0046] On the other hand, the present application also provides a timing socket, including the circuit timing device provided in the above embodiments.

[0047] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0048] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A circuit timing device, characterized in that, The circuit timing device includes a switch detection module (110), a timing module (120), and a switching control circuit (130); The switch detection module (110), connected to the timing module (120) and the switching control circuit (130), is configured to sense the switch state of the load electrical appliance (200) to output a first signal indicating that the switch state is on, and to output a second signal indicating that the switch state is off; The timing module (120), connected to the switching control circuit (130), is configured to start timing in response to the first signal and output an end signal to the switching control circuit (130) when the timing ends, and to refresh the timing in response to the second signal; The switching control circuit (130), connected to the power supply loop where the load electrical appliance (200) is located, is configured to turn on the power supply loop in response to the second signal, and to turn off the power supply loop in response to the end signal.

2. The circuit timing device according to claim 1, wherein The load electrical appliance (200) is connected between the live wire and the neutral wire. The switch detection module (110) is disposed between the load electrical appliance (200) and the neutral wire, and is configured to detect a change in the voltage or current signal on the neutral wire to output the first signal or the second signal.

3. The circuit timing device according to claim 2, wherein, The switch detection module (110) includes a current detection unit. The current detection unit is connected to the load electrical appliance (200) and the neutral wire, and is connected in parallel with the switching control circuit (130).

4. The circuit timing device according to claim 2, wherein The switch detection module (110) includes a voltage detection unit. The voltage detection unit is connected to the load electrical appliance (200) and the neutral wire, and is connected in parallel with the switching control circuit (130).

5. The circuit timing device according to claim 1, characterized in that, The timing module (120) includes a timer (121), an operation unit (122), and a display unit (123). The operation unit (122) and the display unit (123) are both connected to the timer (121).

6. The circuit timing device according to claim 5, wherein The operation unit (122) is a key setting unit, and the display unit (123) is a digital tube.

7. The circuit timing device according to claim 1, characterized in that, The switching control circuit (130) is a relay.

8. A timing socket, characterized in that, Comprising any one of the circuit timing devices according to claims 1-7.

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