FR3096518A1 - Safety smart electrical outlet and safety method - Google Patents

Abstract

The present invention relates to a safety intelligent electrical socket and a method of securing. The socket includes an upper case, a bottom plate and a lower case. A static contact is provided at the upper case and a movable contact is provided at the lower case. The socket further includes a controller and a current sensor, the controller being connected to the current sensor and a compression device, respectively. The controller receives current data from the outlet circuit detected by the current sensor and determines whether the load plug is supplying power to the equipment. When the load plug does not supply power to the equipment, the controller activates the compression device and the latter presses on the base plate until the static contact is separated from the moving contact, in order to disconnect the plug from the circuit. . It is thus possible to effectively reduce the risks caused by electricity leakage. Figure for the abstract: Fig 3

Description

Description Title of the invention: Smart security electrical outlet and method of securing it Technical field

[0001] The present application relates to the field of smart home technology, in particular relates to a smart security electrical outlet and a method of making it safe.

Prior technique

The electrical outlet is an electrical accessory for implementing an electrical connection between the lines via the connection / disconnection between a circuit and copper elements.

With the popularization of mobile equipment and household appliances, many electrical outlets are needed in private and public places to meet the normal use needs of electrical appliances and mobile equipment.

In general, charging plugs are used to power mobile equipment and electrical appliances with the electrical sockets, when charging for example a mobile phone with a charging plug, the user often unplugs his mobile phone from the charging plug without unplugging the charging plug from the electrical outlet at the end of charging or to use your mobile phone while charging, this presents potential safety risks for the electrical outlet.

Disclosure of Invention

[0003] The purpose of the present invention is to provide an intelligent safety electrical socket, in order to reduce the security risks for the electrical socket caused by the leakage of electricity from the charging plug when the user forgets to unplug the electrical outlet charging plug.

[0004] This object is achieved by monitoring the current intensity, by controlling the compression device according to the current intensity and by driving the compression spring of the bottom plate to separate the movable contact and the static contact. of the bottom plate.

The safety smart electrical socket comprises: an upper casing, sockets being provided on the surface of the upper casing, a support plate being provided inside the upper casing for supporting a plug connector, a connection member being provided at one end of the plug connector, and a static contact being provided at the other end; a lower casing, the upper casing covering the upper part of the lower casing, the lower casing being connected to the upper casing, a stepped part being provided inside the lower casing and a first spring receiving groove being provided at the surface of the stepped portion for receiving a spring; a bottom plate, which is provided on the inside of the lower casing, a movable contact being provided on the surface of the bottom plate opposite to the upper casing, the position of the movable contact corresponding to the position of the static contact, one end of the spring being connected to the lower surface of the first spring receiving groove and the other end being connected to the surface of the bottom plate opposite to the upper case, and a compression device being provided to the inner side wall of the lower case to drive the bottom plate to press the spring toward the surface of the step portion; a controller and a current sensor, the controller being connected to the current sensor and to the compression device, the controller receiving the data of current sensed by the current sensor, determining whether the circuit of the safety electric socket is in a state of supply and controlling the activation of the compression device.

[0005] According to the present embodiment, the charging plug of an equipment is inserted via the socket on the upper surface of the upper case, so that the charging plug is connected to the plug connector and the static contact and the movable contact are in the initial contact state, which allows the plug connector to obtain electrical energy from the circuit of the safety electrical outlet to implement the recharging of the equipment.

When the user unplugs the equipment from the charging plug, the current sensor detects a reduction in circuit current and determines that the safety electrical outlet is not currently energizing, as a result, the controller activates the compression device and the compression device presses on the bottom plate until the static contact is separated from the moving contact.

In this case, the circuit of the safety electrical outlet does not supply power to the plug connector, nor does it supply power to the charging plug, thus reducing the safety risks for the electrical outlet caused by the leakage of electricity. .

[0006] According to the present application, a controller is configured to receive the current data detected by the current sensor and to determine whether the load plug is supplying the equipment, when the load plug is not supplying the equipment, the controller activates the compression device, and the compression device presses the bottom plate until the static contact is separated from the moving contact, so as to disconnect the charging plug from the power circuit.

In this way, it is possible to effectively reduce the safety hazards for the electrical outlet caused by the leakage of electricity from the charging plug when the user forgets to unplug the charging plug from the electrical outlet.

Brief description of the drawings

[0007] [fig.1] is a view of the three-dimensional structure of the smart electrical safety socket 3 according to this application;

[0008] [fig.2] is a top view of the smart security electrical outlet according to the present application;

[0009] [fig.3] is a sectional view along A-A of the smart security electrical outlet according to the present application;

[0010] [fig.4] is a view of the internal structure of the smart security electrical outlet according to this application;

[0011] [fig.5] is a view of the structure of the lower case of the smart security electrical outlet according to this application;

[0012] [fig.6] is similar to Figure 3 and shows another embodiment according to the present invention;

[0013] [fig.7] is a view of the structure of the bottom plate of the intelligent electrical safety socket according to the present application;

[0014] [fig.8] is a view of the composition of the controller of the smart security electrical outlet according to the present application;

[0015] [fig.9] is a flowchart of the control method of the intelligent electrical safety socket according to the present application.

detailed description

According to one embodiment shown in Figures 1 to 4, an upper housing 1 and a lower housing 3 are provided.

The upper case 1 is configured with a dustproof function, the lower case 3 is configured to support the bottom plate 2, and the surface of the bottom plate 2 is configured to support the circuit.

The upper casing 1 covers the upper part of the lower casing 3, and the shape of the lower part of the upper casing 1 corresponds to the shape of the outer wall of the lower casing 3, so that the upper casing 1 and the lower casing 3 firmly connect.

The upper case 1 and the lower case 3 can be connected in a removable manner by means of a sliding clasp.

The upper casing 1 and the lower casing 3 can be rectangular in shape, and made of an insulating material such as a plastic material.

The plug connector 12 is fixed inside the upper casing 1 via the support plate 11, one end of the plug connector 12 being provided with a connection element 121, and the other end being provided with a static contact 122, the connection element 121 being connected to the static contact 122 via a conductor, for example a through hole or a through groove provided at the smface of the support plate 11 to receive a conductive wire or a conductive sheet, and the connection element 121 is connected to the static contact 122 via a conductive wire or a conductive sheet.

Further, a conductive socket 13 is provided on the surface of the upper case 1, and the conductive socket 13 is configured to connect an external device to the plug connector 12.

The number of conductive sockets 13 can be two or three.

For example, the charging plug for a mobile phone corresponds to two conductive sockets 13 and two connection elements 121.

After the mobile phone charging plug is inserted into the conductive socket 13, the two pins of the mobile phone charging plug make contact with the connection elements 121, in order to connect them to the static contact 122.

[0019] When the user uses a three-pin charging plug, the electrical safety socket can be provided with three female sockets 13.

Once the three pins of the charging plug have been inserted respectively into the three sockets 13, the three pins of the charging plug establish contact with the three connection elements 121, in order to connect them respectively to three static contacts 122.

The connection element 121 can be a sheet metal element and is fixedly connected to the upper surface of the bottom plate 2 via screws.

The connection contact 122 can be a sheet metal element and is fixedly connected to the lower surface of the bottom plate 2 by means of screws.

Two movable contacts 21 are provided on the surface of the bottom plate 2 opposite the upper casing 1, and the movable contacts 21 are in a state of connection with the supply circuit of the electrical safety socket.

By changing the position of the bottom plate 2, it is possible to bring the movable contact 21 into contact with the static contact 122 or to separate the two.

When the static contact 122 is in contact with the movable contact 21, a compression effect is generated.

The static contact 122 is connected to the lower surface of the bottom plate 2 in an elastic manner.

For example, a resilient buffer element can be used, or a Z-shaped sheet metal element such as plug connector 12.

The upper end of the Z-shaped sheet metal member acts as the plug connector 12, and the lower end of the Z-shaped sheet metal member is the static contact 122 without contact with the bottom surface of support plate 11.

In this way, when the static contact 122 and the movable contact 21 press against each other, the lower end and the central connection part of the Z-shaped sheet metal element provide a damping effect. .

The pressure on the static contact 122 applied by the movable contact 21 makes it possible to avoid an impact on the entire intelligent electrical safety socket.

The bottom plate 2 is carried by the stepped part 31 inside the lower casing 3.

Four first spring receiving grooves 311 are symmetrically provided on the surface of the step portion 31, and a spring 32 is provided inside the first spring receiving groove 311.

One end of the spring 32 is connected to the surface of the first spring receiving groove 311, and the other end of the spring 32 is connected to the surface of the bottom plate 2.

Spring 32 acts as a buffer when bottom plate 2 moves downward.

A fixing metal piece may be fixedly provided at the bottom of the first spring receiving groove 311 through a thread, then the spring 32 is welded to the fixing metal piece, so that the spring 32 is securely disposed at the bottom of the first spring receiving groove 311.

As shown in Figure 5, a compression device 33 is provided inside the lower housing 3.

The entire compression device 33 is fixedly connected to the lower case 3 via a compression support plate 331.

The compression support plate 331 is configured to support the compression motor 332, and the compression motor 332 is configured to drive the compression cam 333 in rotation.

[0024] The compression motor 332 drives the compression cam 333 in clockwise rotation, and the bottom plate 2 is pressed toward the stepped part 31, and the movable contact 21 and the static contact 122 separate from each other, causing the power supply circuit to no longer power the external device.

The compression motor 332 drives the compression cam 333 to rotate counterclockwise and the bottom plate 2 is released, and the movable contact 21 comes into contact with the static contact 122.

Furthermore, according to this embodiment of the present invention, a controller 4 and a current sensor 5 are provided, the controller 4 receiving the current data detected by the current sensor 5 and controlling the operating state of the compression device 33 according to the current data.

For example, assuming the circuit's preset safety current is 'A'B, when the user unplugs their mobile phone from the charging line without removing the charging plug during charging, the circuit current becomes low, in In this case, the controller 4 can decide to stop the power supply, and control the compression device 33 to press the bottom plate 2 towards the stepped part 31 to separate the movable contact 21 and the static contact 122, which makes that the power supply circuit no longer supplies power to the mobile phone charger and thus improves the safety performance.

The controller 4 can control the compression motor 332 in rotation, in order to control the rotation of the compression cam 333.

The initial state of the compression cam 333 is a state of separation from the bottom plate 2.

At this time, the spring 32 at the bottom of the bottom plate 2 is in the initial state of compression or without compression.

At the same time, the movable contact 21 comes into contact with the static contact 122.

Since the movable contact 21 is in connection with the power supply circuit 6, the static contact 122 is in connection with the connection element 121, and the connection element 121 is in connection with the external device, the circuit of power supply can power the external device.

[0027] The separation process of the moving contact 21 and the static contact 122 is as follows: the controller 4 controls the rotational compression motor 332, the compression cam 333 is driven in rotation, and the high point of the compression cam compression 333 starts rotating down until it comes into contact with the bottom plate 2 to press the bottom plate 2 down, at the same time the spring 32 is pressed down until the Movable contact 21 is separated from static contact 122.

According to the embodiment of the present invention, an internal detection circuit is provided to detect the contact state between the movable contact 21 and the static contact 122.

When it is detected that the movable contact 21 is completely separated from the static contact 122, the controller 4 commands the compression motor 332 to stop its rotation.

To implement the aforementioned control process, the controller 4 according to the embodiment of the present invention may be a data processing chip which can meet the above computing requirements, such as a micro- single-chip computer, PLC, etc.

The controller 4 is connected respectively to the compression motor 332 and to the current sensor 5, by receiving the current intensity detected by the current sensor 5, the controller 4 determines whether the circuit of the electrical safety socket is in a state of feeding and controlling the rotation of the compression device 332.

In the view giving the composition of the controller 4 shown in Figure 8, the controller 4 includes a signal receiving unit 41 and a compression engine control unit 42, in order to configure the controller 4 to implement the command function.

The signal receiving unit 41 is configured to receive a current information signal transmitted by a sensor such as the current sensor 5 according to the present application.

The compression motor controller 42 is configured to control the operating state of the compression motor 332 based on a current information signal.

Compared with the embodiment shown in Fig. 3, the embodiment of the present invention shown in Fig. 6 differs mainly in that a conductive projection 123 is provided at the side of the static contact 122 opposite the contact. mobile 21, the central axis of the conductive projection 123 being coaxial with the central axis of the mobile contact 21.

The conductive projection 123 makes it possible to make the contact between the static contact 122 and the moving contact 21 closer and to avoid poor contact.

Compared to the bottom plate shown in Fig. 3, the bottom plate 2 according to the embodiment of the present invention shown in Fig. 7 is different in that a second spring-receiving groove 22 is provided symmetrically to the surface of the bottom plate 2, the central axis of the second spring receiving groove 22 being coaxial with the central axis of the first spring receiving groove 311, one end of the spring 32 being connected to the lower surface of the first spring receiving groove 311, and the other end of the spring 32 being connected to the lower surface of the second spring receiving groove 22.

[0032] In the absence of the second spring housing groove 22 provided on the lower surface of the bottom plate 2, the spring 32 and the lower surface of the bottom plate 2 are likely to drift during the process of compression of the spring 32, or even coming off, which causes the pressing action of the bottom plate 2 not to be obtained.

The bottom plate 2 according to the embodiment shown as Figure 7 effectively prevents the derivation or detachment of the spring 32.

[0033] Optionally, a voltage presence indicator 14 is provided on the surface of the upper casing 1, and the controller 4 is connected to the voltage presence indicator 14.

The controller 4 receives the current data detected by the current sensor 5 and controls the operating state of the voltage presence indicator 14 according to the current data.

The control process consists of that: when the user unplugs equipment from the charging plug, the current sensor 5 detects a reduction in circuit current and determines that the safety electrical outlet is not currently energizing, accordingly , the controller 4 cuts the voltage of the undervoltage indicator 14 and turns off the voltage presence indicator 14, so that the user obtains an indication of non-power supply of the electrical safety socket.

In addition, once the movable contact 21 separated from the static contact 122, it is necessary to reset the movable contact 21 and the static contact 122 to the initial state to recharge.

By using a terminal, such as an APP for the mobile phone, it is possible to control the compression motor 332 to drive the compression cam 333 in rotation, so that the movable contact 21 comes back into contact with the static contact. 122 and the power supply circuit re-supplies plug connector 12 to thereby power external equipment.

[0035] Preferably, an auxiliary through-hole 15 is provided on the surface of the upper casing 1, the auxiliary through-hole 15 penetrating into the upper shell 1.

The user can touch the bottom plate 2 through the auxiliary through hole 15.

After a long period of operation of the security smart electrical outlet, a blockage may occur between the bottom plate 2 and the inner wall of the lower case 3.

When the user disconnects equipment from the charging plug, the current sensor 5 detects a reduction in the circuit current, or even zero current, it is necessary to activate the compression cam 333 to press the bottom plate 2 down.

Due to the blocking, the bottom plate 2 does not move downwards, which has the consequence that the static contact 122 and the movable contact 21 are always in contact.

The electrical safety socket circuit always supplies power to plug connector 12.

[0036] In this case, the user can manually press the bottom plate 2 downwards through the auxiliary through-hole 15 using a stick, in order to separate the static contact 122 and the movable contact 21.

A servo motor can be adjusted beforehand, at this time the servo motor should be at a specified angle of rotation, accordingly, the compression motor 332 drives the compression cam 333 to maintain a specified angle, so that the bottom plate is maintained in the state where the static contact 122 is separated from the movable contact 21.

[0037] Based on the above safety smart electrical outlet and as shown in Figure 9, the present invention further provides a method for safely controlling the safety smart electrical outlet, i.e. the The safety socket controller 4 is further configured to perform the following steps: If: acquiring the safety smart socket circuit current information by the current sensor 5; S2: Determining whether the safety smart socket circuit is energizing at the current time based on the current information; S3: if no electric power is supplied at the current time, activate the compression device 33 to press the bottom plate 2 towards the stepped part 31; S4: If electric power is supplied at the current time, turn off the compression device 33.

Moreover, the present invention is applicable to another scenario, such as using a mobile phone while charging the mobile phone, which also has the potential risks of electricity leakage.

The current intensity of the circuit during the use of a mobile phone while charging the mobile phone is not the same as the current intensity during simple charging.

For example, when the overcurrent is greater than the maximum threshold L. it can be considered that the user uses the mobile phone while charging the mobile phone, in this case, the compression device 33 can be activated by the controller 4 to separate the static contact 122 and the movable contact 21, so as to prevent leakage of electricity caused by the use of the mobile phone, and thus protect the personal safety of the user.

[0039] If the current sensor 5 detects that the circuit current is between I2 and 13, it can be considered that the electrical safety socket is in a normal power supply state, the user has neither unplugged nor used the device during charging, in this case, the compression device 33 is not activated, and the safety electrical outlet can supply 9 power.

[Claim 1]

Claims (1)

CLAIMS Safety smart electrical socket, characterized in that the safety smart electrical socket comprises: an upper casing (1), a conductive socket (13) being provided on the surface of the upper casing (1), a support plate ( 11) being provided therein, the support plate (11) being configured to support the dc plug connector (12), one end of the plug connector (12) being provided with a connection element (121), and the other end being provided with a static contact (122); a lower casing (3), the upper casing (1) covering the upper part of the lower casing (3), the lower casing (3) being connected to the upper casing (1), a stepped part (31) being provided at the inside the lower case (3), a first spring receiving groove (311) being provided at the surface of the step portion (31), and the first spring receiving groove (311) being configured to receive the spring (32); a bottom plate (2), the bottom plate (2) being provided inside the lower case (3), a movable contact (21) being provided on the surface of the bottom plate (2) opposite to the case top (1), one end of the spring (32) being connected to the bottom surface of the first spring receiving groove (311), and the other end being connected to the surface of the bottom plate (2) opposite the upper casing (1), a compression device (33) being provided at the inner side wall of the lower casing (3) to cause the bottom plate (2) to press on the spring (32); a controller (4) and a current sensor (5), the controller (4) being connected respectively to the current sensor (5) and to the compression device (33), the controller (4) receiving the current data detected by the current sensor (5), determining whether the circuit of the electrical safety socket is in the supply state and controlling the activation of the compression device (33). [Claim 2] Safety smart electrical outlet according to claim 1, characterized in that the compression device (33) comprises: a compression support plate (331), said compression support plate (331) being fixedly connected to the lower case (3) to support the compression motor (332); a compression motor (332), which is configured to drive a compression cam (333) in rotation; the compression cam (333) being configured to press the bottom plate (2) towards the step portion (31); the controller (4) being connected to the compression motor (332) to receive the current data detected by the current sensor (5) and to control the activation of the compression motor (332) according to the current data. [Claim 3] [Claim 4] [Claim 5] [Claim 6] Intelligent electrical safety socket according to one of Claims 1 and 2, characterized in that the connection element (121) is connected to the static contact (122 ) via a conductor, the static contact (122) being provided at the lower part of the support plate (11) and the connection element (121) being provided at the upper part of the support plate (11). Smart electrical safety socket according to any one of Claims 1 to 3, characterized in that a conductive projection (123) is provided on the side of the static contact (122) opposite the movable contact (21), the central axis of the conductive projection (123) being coaxial with the central axis of the movable contact (21). Safety smart socket according to one of Claims 1 to 4, characterized in that a second spring-receiving groove (22) is provided symmetrically on the surface of the bottom plate (2), the central axis of the second spring-receiving groove (22) being coaxial with the central axis of the first spring-receiving groove (311), one end of the spring (32) being connected to the lower surface of the first spring-receiving groove spring (311), and the other end of the spring (32) being connected to the bottom surface of the second spring receiving groove (22). Smart electrical safety socket according to any one of claims 1 to 5, characterized in that a voltage presence indicator (14) is provided on the surface of the upper housing (1), and the 12 [Claim 7] controller (4) is connected to the voltage presence indicator (14), the controller (4) receives the current data detected by the current sensor (5) and controls the working state of the voltage presence indicator. voltage (14) versus current data. Safety smart electrical socket according to any one of claims 1 to 6, characterized in that an auxiliary through-hole (15) is provided on the surface of the upper casing (1), the auxiliary through-hole (15) penetrating into the upper shell (1). [Claim 8] A method for securing the security smart electrical socket, characterized in that said method comprises the steps of: acquiring the current information of the circuit of the security smart electrical socket by the current sensor ( 5); determining whether the circuit of the safety smart electrical outlet is energizing at the current time based on the current information; if no electric power is supplied at the current time, activating the compression device (33) to press the bottom plate (2) toward the step portion (31); if electric power is supplied at the current time, deactivating the compression device (33).