TWM466416U - Charger power-off structure - Google Patents

Description

Charger power-off structure

The present invention relates to a charger structure of an electronic device, and more particularly to a charger structure that can be surely powered off after the connector is separated.

Thanks to the popularity of electronic application technology, mobile electronic devices such as mobile media, mobile phones, notebook computers, and tablet computers are widely used. Due to the working voltage required for the use of these mobile electronic devices, the built-in rechargeable battery is used. Provided, therefore, the function of the Changbao electronic device is normal. When the rechargeable battery is used, it needs to be connected to a charger for charging. A common charger structure mainly includes a power supply with a plug exposed, and the power is connected to a connector through an extension cable; accordingly, when the electronic device is charged, the plug is inserted into the power socket, and then The connector is inserted into a corresponding connection port on the electronic device for converting the indoor power source into a charging voltage required for charging the battery to achieve charging of the electronic device.

Although the above-mentioned conventional charger can easily achieve the charging function, the actual use process finds that after the user completes the charging, the user is only used to pull the connector away from the electronic device, and the power supply device is still plugged into the commercial power socket. This situation does not prevent the charger from continuing to consume power, so it will inevitably lead to unnecessary consumption of energy. It can be seen that there is still room for improvement in the conventional charger structure.

In view of this, the present invention is to provide a charger power-off structure, which can achieve the effect of power-off after the charger connector is pulled out of the electronic device, thereby avoiding waste of resources.

In order to achieve the above objectives, the technical means proposed by this creation is to mention The utility model relates to a charger power-off structure, comprising a power supply device and a power-off component; the power supply device comprises a voltage conversion portion, a connector and an extension line connected therebetween, the voltage conversion portion is provided with a transformer assembly The utility model is configured to convert the utility power into a voltage required for charging; the power-off component comprises a control head, a control switch and a control line connected between the two, and the mains power supply line is connected; the control open relationship group is disposed at the connection head The voltage conversion unit is disposed at the control head. Accordingly, the state of the control switch is controlled by whether the connector is inserted into the electronic device to determine whether the commercial power is transmitted to the power supply via the control head.

The above charger power-off structure is improved, wherein the control head is provided with a relay circuit, and the control circuit is connected to the relay circuit.

The above charger power-off structure is improved, wherein the control open relationship is connected in series to the mains power line.

The above charger power-off structure is improved, wherein the power supply and the power-off component are integrated.

Accordingly, when the connector is removed, the utility system cannot be conducted to the power supply via the control head, so that the supply of the commercial power can be surely cut off, and the lack of energy consumption of the transformer assembly can be improved.

10‧‧‧Power supply

11‧‧‧Voltage conversion department

12‧‧‧Connecting head

13‧‧‧Extension line

20‧‧‧Power-off parts

21‧‧‧Control head

211‧‧‧ Relay circuit

212‧‧‧Power line

213‧‧‧Fuse

22‧‧‧Control switch

23‧‧‧Control line

30‧‧‧Electronic devices

Figure 1 is a schematic exploded view of a preferred embodiment of the present invention.

Fig. 2 is a schematic view showing the structural combination of the preferred embodiment of the present invention.

Figure 3 is a schematic diagram of the implementation of charging with this creation.

Figure 4 is a schematic view showing the structure of another embodiment of the present creation.

Figure 5 is a schematic view showing the structure of still another embodiment of the present invention.

To further clarify the structural features, functions, and other advantages of the present invention, the preferred embodiments and the drawings are described in detail below.

As shown in Figure 1, it reveals the comparison of the power-off structure of the author charger. A good example. This creation includes a power supply (10) and a power-off component (20). The power supply (10) includes a voltage conversion unit (11), a connector (12), and an extension line (13) connected therebetween; the voltage conversion unit (11) is provided with an electronic component such as a transformer coil. For connecting the utility power to the voltage required for charging; the connector (12) is a connector adapted to the connection of the electronic device, such as a USB connector; etc.; it can be understood that the voltage conversion portion (11) The output voltage and the form of the connector can be adjusted according to the actual needs of the product.

The power-off component (20) comprises a control head (21), a control switch (22) and a control line (23) connected therebetween; the control head (21) has a plug configuration and can be inserted into a socket of the utility power The relay circuit (211) is connected to the mains power supply line (212). When not in use, the power supply line (212) is preset to a normally open state; the control switch (22) can be a pressure switch or a limit switch. The component that can change the open/close state of the circuit is connected in series to the control line (23); the control line is electrically connected to the relay circuit (211), and the relay circuit (211) is modulated by the modulation switch (22). Change the connected state of the power line (212).

In particular, the voltage conversion portion (11) and the control head (21) have an electrical connection structure, such as a plug and a socket, a bump and a recess, to conduct the mains power of the power-off component (20) to Power supply (10).

Please refer to Figure 2 for a schematic diagram of the combination of the power supply (10) and the power-off component (20). The control switch (22) is disposed at the connector (12), and the voltage conversion portion (11) is disposed at the control head (21). Although the control head (21) can be inserted into the mains socket at all times, since the connector (12) is not yet connected to the electronic device, the connection control switch (22) is not activated, and therefore, the relay circuit (211) The power line (212) is in a normally open state, that is, the utility power cannot be transmitted to the power supply (10) via the control head (21), and the power supply can be surely cut off to prevent the energy from continuing to be depleted. Missing.

Referring to FIG. 3 again, a schematic diagram of the implementation of charging by the authoring electronic device (30) is disclosed. The figure shows that when the connector (12) is inserted into the electronic device, After the device (30), the control switch (22) is triggered to cause the lock state to change. Then, the relay circuit (211) is actuated to connect the power supply line (212) to the state in which the voltage conversion portion (11) can be transformed. The required power supply, in order to achieve the purpose of charging the electronic device. Although the control switch (22) in this embodiment is described in a closed state, since the design of the power-off circuit is different due to various types of switches, it is not limited to the power-off circuit when the control switch is closed.

In the improved structure of the power-off structure of the present charger, it can be understood that the power supply (10) and the power-off component (20) can be further integrated, as shown in FIG. 4, which is the creation of the present invention. Another embodiment differs from the previous embodiment in that the control switch (22) and the connector (12), the control line (23) and the extension line (13), the control head (21) and the voltage The conversion portion (11) is integrally formed, and the appearance can be more concise except for the same function as the previous embodiment.

Please refer to FIG. 5 again. Another embodiment of the present invention is different from the above two embodiments in that the control switch (22) is directly connected in series to the mains power supply line (212); accordingly, when the connector (12) When inserted in the electronic device (30), the control switch (22) is in a closed state to conduct the city power to the power supply (10); when the connector (12) is pulled away from the electronic device (30), the control The switch (22) is in an open state and has the effect of breaking the source of the mains. Of course, in order to improve safety, a fuse (213) may be further disposed on the mains power supply line (212).

Through the above description, the power-off structure of the charger has indeed reached the preset purpose, fully meets the needs of the industry, and has filed a patent application according to law. However, the above is only a preferred embodiment of the present invention, and is not used. To limit the creation of this creation, the scope of protection of this creation is subject to the definition of the scope of the patent application.

10‧‧‧Power supply

11‧‧‧Voltage conversion department

12‧‧‧Connecting head

13‧‧‧Extension line

20‧‧‧Power-off parts

21‧‧‧Control head

211‧‧‧ Relay circuit

212‧‧‧Power line

22‧‧‧Control switch

23‧‧‧Control line

Claims (4)

A charger power-off structure includes a power supply and a power-off component; the power supply includes a voltage conversion portion, a connector, and an extension line connected therebetween, the voltage conversion portion has a transformer assembly for The utility power is converted into a charging voltage; the power-off component comprises a control head, a control switch and a control line connected between the two, and is connected to the mains power supply line; the control-opening relationship group is disposed at the connection head, and the voltage conversion part is The group is set at the control head; when the connector is removed, the utility system cannot be conducted to the power supply via the control head; when the connector is inserted into the electronic device, the control switch is activated, so that the relay circuit changes the circuit of the power line to be conductive. The charger power-off structure according to claim 1, wherein the control head is provided with a relay circuit, and the control line is coupled to the relay circuit. The charger power-off structure according to claim 1, wherein the control-opening relationship is connected in series to the mains power supply line. The charger power-off structure according to claim 1, wherein the power supply and the power-off component are integrated.