CN108429093A - Automatic open close power supply adaptor - Google Patents

Abstract

The present invention relates to a kind of automatic open close power supply adaptors, it is provided with open-close on-off (4), control module (5), load detecting module (6), and accumulator (7), by the way that above structure is arranged on existing charging adapter, it enables to when needing to power using adapter, turn on automatically open-close on-off is to connect circuit, achieve the purpose that facilitate electricity consumption, simultaneously can in not electricity consumption automatic shutdown circuit, achieve the purpose that safe handling, while stand-by power consumption can be avoided completely.Through the invention, even if being inserted into or pulling up from socket without by adapter when frequently using charging adapter, while bringing great convenience to use, additionally it is possible to using electricity wisely, and avoid causing security risk.

Description

Auto power adapter

technical field

The invention relates to the technical field of electronic products, in particular to an automatic on-off power adapter.

Background technique

With the rapid development of electronic information technology, there are more and more types of electronic products, and the usage rate is also increasing, such as smart phones, PDAs, handheld computers, handheld game consoles, notebook computers, and electric vehicles. People are more and more dependent on these products, and the frequency and time of use are also getting longer and longer, which leads to the frequent need for charging of such products to meet the needs of anytime and long-term use.

Power adapter is a power supply conversion device for small portable electronic equipment and electrical appliances. It is generally composed of shells, transformers, inductors, capacitors, control ICs, PCB boards and other components. Its working principle is converted from AC input to DC output. .

Due to usage habits, especially during frequent use, people usually do not want to frequently plug and unplug the adapter, or because the position of the power interface is relatively hidden and it is inconvenient to plug and unplug the adapter, which leads to great inconvenience caused by frequent plugging and unplugging of the adapter. In addition, people usually do not unplug the adapter from the socket in time after use, or even leave it on the power socket for a long time without unplugging it, which causes the adapter to be in a standby state for a long time, with a certain standby power consumption, wasting electrical energy. More importantly, if the adapter is plugged into the power socket for a long time, it will easily cause great safety hazards and bring greater losses.

Therefore, it is necessary to make a smart adapter that can automatically switch on and off the power supply circuit according to the user's use status, so that when the adapter is used for charging, frequent plugging and unplugging operations are not required, which can not only achieve the purpose of safe use, but also Standby power consumption can be avoided.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides an automatic power supply adapter, which can timely and automatically connect the power supply circuit when power is needed, so as to achieve the purpose of convenient power use, and automatically disconnect the power supply circuit when the power is used up, so as to achieve Use for safety purposes, while there is no standby power consumption. details as follows:

An automatic opening and closing power adapter includes a housing, a power input plug and an output plug arranged outside the housing, and a power supply conversion circuit arranged inside the housing. The adapter is also provided with:

On-off switch, which is arranged between the power input plug and the power supply conversion circuit;

A control module, the control end of which is electrically connected to the on-off switch;

A load detection module, which is arranged between the power supply conversion circuit and the output plug, and is electrically connected to the control module;

The accumulator is electrically connected to the control module, and is used to store electric energy and supply power to the control module and to the system through the control module;

The load detection module is configured to be able to detect the load of the circuit in real time. In the power-off state, when the output plug is connected to the electric device, the effective load of the circuit is detected, and an electric signal is output; No effective load is detected when disconnected, and a power-off signal is output;

The control module is configured to receive the power-on or power-off signal, and output a control signal to the on-off switch according to the power-on or off signal, so as to activate the on-off switch to close or open, and to turn on the on-off switch when it is closed. The power supply circuit from the power input plug to the output plug completely cuts off the power supply circuit from the power input plug to the output plug when the on-off switch is turned off, so as to achieve the purpose of safe power consumption and zero standby power consumption.

Preferably, the load detection module includes current detection and voltage detection, and is configured to detect current/voltage loads in the circuit in real time, and transmit corresponding current/voltage signals to the control module.

Preferably, the control module is provided with a microprocessor, the microprocessor is electrically connected to the load detection module, and the microprocessor is configured to analyze and process the current/voltage signal:

In the power-off state, the on-off switch is in the off state, and when the output plug is connected to the electrical equipment, the microprocessor uses the detection of the voltage drop signal as the first trigger condition to activate the on-off switch to close and connect the power supply circuit Enter the normal power supply state;

In the power supply state, the on-off switch is in the closed state, and when the output plug is disconnected from the electrical equipment, when no current signal is detected or the current is less than the set threshold, as the second trigger condition, the on-off switch is activated to open , disconnect the power supply circuit to enter the standby state.

Preferably, a button module is also provided, which is electrically connected to the microprocessor, and is used to manually trigger the operation of the control module through the button module to activate the on-off switch when the control module cannot automatically work due to the failure of the energy accumulator. Open or close, and the button module is also set for function configuration, for human-computer interaction.

Preferably, a timing module is also provided, which is electrically connected to the microprocessor, and the microprocessor is configured to activate the opening and closing switch to open or close when the set time is reached through the timing module, so as to cut off Or restore the power supply circuit.

Preferably, a Bluetooth BLE module electrically connected to the microprocessor is also provided, or the microprocessor has a Bluetooth BLE function inside, and is configured to wirelessly connect the control module to an electronic mobile device with a Bluetooth BLE function;

The electronic mobile device APP matched with the power adapter receives the data transmitted by the microprocessor, and performs data processing and display. At the same time, the user can set the charging time through the interactive interface of the APP, and wirelessly transmit it to the microprocessor through the Bluetooth BLE module. After receiving and processing the signal, the microprocessor can activate the on-off switch to disconnect and cut off the power supply circuit through the timing module when the set time is reached.

Preferably, the accumulator adopts a farad capacitor or a battery pack, which is configured to provide maintenance power to the system in a power-off state, so as to ensure that the system can be activated smoothly, and the battery pack can also be used in the power-off state Supply power to external electrical equipment and use it as a mobile power supply.

Preferably, a power supply indicator light is also provided to indicate the on-off and working status of the power supply circuit.

Preferably, the indicator light is an LED light.

Preferably, the power input plug includes a 2-pin power plug, a 3-pin power plug, and a multi-pin power plug; and/or, the output plug includes a standard USB interface, a low-voltage DC power supply output interface that is not a USB interface.

The beneficial effects of the present invention are: the present invention can provide necessary and long-time maintenance power supply for the system in a power-off state by setting an on-off switch on the existing charging adapter and by virtue of the function of the accumulator, so that When the adapter is used for power supply, the accumulator ensures that the opening and closing switch can be activated smoothly, and the opening and closing switch is automatically closed to connect the circuit to achieve the purpose of convenient power consumption. The purpose of this can also avoid standby power consumption. At the same time, the accumulator can maintain a long standby time, and when a battery pack is used, especially a large-capacity lithium battery pack, it can also be used to supply power to external electrical equipment in a power-off state. Through the present invention, even when the charging adapter is used frequently, it is not necessary to insert or unplug the adapter from the socket, which brings great convenience to use, saves power consumption, and avoids potential safety hazards.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the power adapter;

Figure 2 is a schematic diagram of the module layout;

Fig. 3 is a schematic diagram of module arrangement in another embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should also be noted that the terms "comprising/comprising", "consisting of" or any other variation thereof are intended to cover a non-exclusive inclusion such that a product, apparatus, process or method comprising a set of elements includes not only those elements, and may include other elements not expressly listed as required, or elements inherent in the product, apparatus, process or method. Without further limitations, an element defined by the phrase "comprising/comprising...", "consisting of... does not exclude the presence of additional the same elements.

As shown in Figure 1, the power adapter includes a housing 1, a power input plug 2 and an output plug 3 arranged outside the housing 1, and an unshown power conversion circuit arranged inside the housing 1, which is a standard in the art. Conventional technology, again no specific elaboration.

Referring to Fig. 2, the automatic on-off power adapter of the present invention is provided with the following structure: on-off switch 4, which is arranged between the power input plug 2 and the power supply conversion circuit; control module 5, whose control terminal is connected to the on-off switch The switch 4 is electrically connected; the load detection module 6 is arranged between the power supply conversion circuit and the output plug 3, and is electrically connected with the control module 5; the accumulator 7 is electrically connected with the control module 5 for storing Electric energy and supply power to control module 5 and supply power to system by control module 5; Wherein,

The load detection module 6 is used to detect the circuit load in real time. In the power-off state, when the output plug 3 is connected to the electric device, that is, when the output plug 3 is plugged into the electric device, the effective load of the circuit is detected, and the output needs to be used at this time. Electric signal; in the power supply state, when the output plug 3 is disconnected from the electrical equipment, that is, when the output plug 3 is unplugged from the electrical equipment, no effective load can be detected, and a signal that the power needs to be cut off after the power consumption is completed is output;

The control module 5 receives the above-mentioned power consumption or power-off signal, and outputs control signals to the on-off switch 4 according to the power-on or power-off signal, so as to activate the on-off switch to close or disconnect, and turn on the power input when the on-off switch is closed. The plug 2 passes through the on-off switch 4, the power supply conversion circuit, and the load detection module 6 to the power supply circuit of the output plug 3. When the on-off switch is turned off, the power supply circuit from the power input plug 2 to the output plug 3 is completely cut off to achieve safe power consumption and zero standby power consumption.

The load detection module 6 includes current detection and voltage detection, and is configured to detect the current/voltage load in the circuit in real time, and transmit corresponding current/voltage signals to the control module 5 . Specifically, in the state of power consumption, if the output plug 3 is disconnected from the power consumption device, and no current signal is detected at this time or the detected current is less than the set value, the control module 5 is activated to work; in the power-off state , if electricity is needed and the output plug 3 is plugged into the electrical equipment, current detection cannot be provided at this time, and the load detection module activates the control module 5 to work by detecting the voltage drop signal. Current detection and voltage detection can be realized by conventional detection means in the field, such as sensors and the like.

Through the above settings, with the help of the function of the accumulator, it can provide the necessary and long-term power supply for the system in the power-off state, so that when the adapter needs to be used for power supply, the accumulator can ensure that the on-off switch can be activated smoothly and automatically Closing the on-off switch to turn on the circuit can facilitate the use of electricity. When the power is finished, the on-off switch is automatically turned off to cut off the circuit, which can also safely use electricity and avoid standby power consumption.

The energy accumulator 6 preferably adopts a farad capacitor or a battery pack, which can provide maintenance power to the system in a power-off state, and can maintain a long-time standby time with an ultra-low power consumption state in a power-free state. Power supply circuit energy storage. The above-mentioned battery pack can adopt a large-capacity battery pack, especially a large-capacity lithium battery pack. When the accumulator adopts a battery pack, especially a large-capacity lithium battery pack, it can also be used to supply power to external electrical equipment in a power-off state, and the adapter can be used as a mobile power supply, which expands the functions and uses of the adapter.

Referring to Fig. 3 again, the control module 5 is provided with a microprocessor 501, the microprocessor is electrically connected to the load detection module 6, and the microprocessor is configured to analyze and process the current/voltage signal:

In the power-off state, the on-off switch 4 is in the off state, and when the output plug 3 is connected to the electrical equipment, the microprocessor 501 uses the detection of a voltage drop signal as the first trigger condition to activate the on-off switch 4 to close, Connect the power supply circuit to enter the normal power supply state;

In the power supply state, the on-off switch 4 is in the closed state. When the output plug 3 is disconnected from the electrical equipment, when the current signal is not detected or the detected current is less than the set value, it is used as the second trigger condition to activate the The opening and closing switch 4 is disconnected, and the power supply circuit is disconnected to enter the standby state.

The present invention is further provided with a button module 8, which is electrically connected to the microprocessor 501. If the control module 5 cannot be activated to work automatically due to failure of the accumulator 6 or power exhaustion, the control module 5 is manually triggered to work through the button module 8. Excite the on-off switch 4 to open or close. At the same time, the button module 8 can also be set as required for function configuration, such as timing, etc., for human-computer interaction.

The present invention is further provided with a timing module 9, which is electrically connected to the microprocessor 501, and the microprocessor 501 is configured such that the timing module 9 can activate the opening and closing switch to open or close when the set time is reached. , so as to cut off or restore the power supply circuit. The timing module 9 can be used in conjunction with the above-mentioned button module. By setting the power supply or power-off time, the timing module 9 will automatically activate the circuit on and off when the set time is reached.

The present invention is further provided with a Bluetooth BLE module 10 electrically connected to the microprocessor 501, or the microprocessor has a Bluetooth BLE function inside, and is configured to wirelessly connect the control module 5 to an electronic mobile device with a Bluetooth BLE function; Set up an APP matching the power adapter on the electronic mobile device. The APP can wirelessly receive the data transmitted by the microprocessor 501 through Bluetooth, and perform data processing and display. The BLE module 10 wirelessly feeds back to the microprocessor 501, and after the microprocessor 501 receives and processes the signal, it can activate the on-off switch 4 to turn off and cut off the power supply circuit through the timing module 9 when the set time is reached. In this way, the user can conveniently perform human-computer interaction with the adapter on the electronic device, which enhances the function of the adapter and user experience.

The present invention is further provided with a power supply indicator light, which may be an LED light, which is used to indicate the on-off of the power supply circuit, so that the user can intuitively tell whether the opening and closing function of the adapter is normal.

The form of power input plug 2 can adopt 2-pin power plug, 3-pin power plug, multi-pin power plug.

The form of the output plug 3 can adopt a standard USB interface or a non-USB interface low-voltage DC power supply output interface. According to specific product needs, other interface forms can also be used. In this way, it can meet the electricity demand of most existing electronic equipment products in the market.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. The utility model provides an automatic start and stop power adapter, includes casing (1), power input plug (2), output plug (3) and power supply conversion circuit, its characterized in that the adapter still is provided with:

the on-off switch (4) is arranged between the power input plug (2) and the power supply conversion circuit;

the control end of the control module (5) is electrically connected with the on-off switch (4);

a load detection module (6) arranged between the power supply conversion circuit and the output plug (3) and electrically connected with the control module (5);

the energy accumulator (7) is electrically connected with the control module (5) and is used for storing electric energy, supplying power to the control module (5) and supplying power to a system through the control module (5);

the load detection module (6) is configured to detect a circuit load in real time, detect a circuit effective load when the output plug (3) is connected with the electric equipment in a power-off state, and output an electric signal; in the power supply state, when the output plug (3) is disconnected from the electric equipment, the effective load cannot be detected, and a power-off signal is output;

the control module (5) is configured to receive the power utilization or power-off signal, and respectively outputs a control signal to the on-off switch (4) according to the power utilization or power-off signal to excite the on-off switch to be switched on or switched off, a power supply circuit from the power input plug (2) to the output plug (3) is switched on when the on-off switch is switched on, and the power supply circuit from the power input plug (2) to the output plug (3) is completely switched off when the on-off switch is switched off, so that the purposes of safe power utilization and zero standby power consumption are achieved.

2. The power adapter as claimed in claim 1, characterized in that the load detection module (6) comprises a current detection and a voltage detection and is configured to detect a current/voltage load in the circuit in real time and to deliver a corresponding current/voltage signal to the control module (5).

3. The power adapter as claimed in claim 2, characterized in that the control module (5) is provided with a microprocessor (501), the microprocessor (501) being electrically connected with a load detection module (6), the microprocessor (501) being configured to analyze and process the current/voltage signals:

in a power-off state, the on-off switch (4) is in an off state, when the output plug (3) is connected with the electric equipment, the microprocessor (501) takes a detected voltage drop signal as a first trigger condition to excite the on-off switch (4) to be closed, and a power supply circuit is connected to enter a normal power supply state;

and under the power supply state, the on-off switch (4) is in a closed state, and when the output plug (3) is disconnected from the electric equipment and a current signal cannot be detected or the current is smaller than a set threshold, the on-off switch (4) is triggered to be switched off to disconnect the power supply circuit and enter a standby state.

4. The power adapter as claimed in claim 1, characterized in that the energy accumulator (6) is a farad capacitor or a battery pack, which is configured to provide maintenance power to the system in the power-off state to ensure that the system can be successfully activated, while the battery pack can also be used to supply power to external consumers in the power-off state for use as a mobile power source.

5. The power adapter as claimed in claim 3, characterized in that a key module (8) is further provided, and is electrically connected with the microprocessor (501), and is used for manually triggering the control module (5) to operate through the key module (8) when the control module (5) cannot automatically operate due to the failure of the energy accumulator (6), so as to activate the on-off switch (4) to be opened or closed, and meanwhile, the key module (8) is further configured for function configuration and human-computer interaction.

6. The power adapter as claimed in claim 3, characterized in that a timing module (9) is further provided, and is electrically connected with the microprocessor (501), and the microprocessor (501) is configured to activate the on-off switch to be opened or closed when a set time is reached through the timing module (9), so as to cut off or restore the power supply circuit.

7. The power adapter according to claim 3, characterized in that a Bluetooth BLE module (10) is also provided, electrically connected to the microprocessor (501), or internally provided with Bluetooth BLE functionality, configured to enable wireless connection of the control module (5) to the electronic mobile device with Bluetooth BLE functionality;

with the supporting electronic mobile device APP of this power adapter, receive the data of microprocessor (501) conveying, carry out data processing and demonstration, the user can set up the charging time through APP's interactive interface simultaneously to arrive through bluetooth BLE module (10) wireless transmission microprocessor (501), microprocessor (501) received signal can pass through timing module (9) after handling and arouse when reaching the settlement time opening and closing switch (4) disconnection, cut off supply circuit.

8. The power adapter as claimed in claim 1, wherein a power supply indicating lamp is further provided for indicating the on/off and operating state of the power supply circuit.

9. The power adapter as described in claim 8, wherein said indicator light is an LED light.

10. The power adapter as claimed in claim 1, wherein the power input plug (2) form comprises a 2-core power plug, a 3-core power plug, a multi-core power plug; and/or the output plug (3) comprises a standard USB interface and a low-voltage direct current power supply output interface which is not a USB interface.