Anti-electric shock socket
By dynamically controlling the on and off state of the socket through in-situ detection components and controllers, the risk of electric shock during plugging and unplugging of the plug is resolved, thus improving the safety of the socket.
Patent Information
- Application Number
- CN202422396280.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-09-29
AI Technical Summary
When the plug is inserted or removed from the existing socket, the exposed blades are easily touched by the user, resulting in the risk of electric shock.
The in-position detection component and controller are used to dynamically control the connection and disconnection between the plug unit and the external power supply by detecting the position signal of the plug, avoiding accidental electric shock when the plug is plugged in or out.
It effectively avoids the risk of electric shock when plugging and unplugging the plug, and improves the safety of use.
Smart Images
Figure CN223487410U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sockets. More specifically, it relates to a socket protected against electric shock. Background Technology
[0002] Currently, sockets, also known as power strips, extension cords, or cord extension components / extension cord sockets, are a common power management device.
[0003] However, in existing technologies, when a plug is inserted, it is already energized from the moment it is inserted until it is fully inserted into the socket, and the prongs are exposed at this time, making them easy for users to touch and causing a risk of electric shock. When a plug is removed, it remains energized from the moment it is removed until it is fully removed, and the prongs are exposed at this time, making them easy for users to touch and causing a risk of electric shock. Inserting a conductive object into any single hole of the socket will create a conductive circuit, causing a risk of electric shock (typical scenario: a user holding a key, nail, or other metal object inserting it into a live socket will cause an electric shock). Summary of the Invention
[0004] The purpose of this invention is to provide an anti-electric shock socket to solve the problem of electric shock risk that exists in the prior art when plugs are inserted or removed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An electric shock resistant socket includes:
[0007] Controller and one or more jack units;
[0008] The first end of the external power supply is connected to the first socket of each socket unit; a first switch is also connected between the first end of the external power supply and the first socket of each socket unit.
[0009] The second end of the external power supply is connected to the second socket of each socket unit; a second switch is also connected between the second end of the external power supply and the second socket of each socket unit.
[0010] Each of the aforementioned socket units is provided with an in-position detection component, which is used to detect the position of the plug and output a position signal to the controller;
[0011] The controller, based on the position signal sent by the in-situ detection component on the corresponding socket unit, turns on the first switch and the second switch connected to the corresponding socket unit.
[0012] Furthermore, the presence detection component includes a first presence detection module, which is disposed on the side of the corresponding socket unit near the plug.
[0013] Furthermore, the first in-situ detection module is selected from one of a distance sensor, a proximity switch, and a pressure-activated and pressure-relieved disconnect switch.
[0014] Furthermore, the pressure-activated and pressure-relieved disconnect switch is a switch that makes the circuit open when subjected to external pressure and disconnects the circuit when the external pressure is removed, including but not limited to micro switches, tactile switches, and detection switches.
[0015] Furthermore, the in-situ detection component includes a plurality of second in-situ detection modules, which are respectively disposed in the holes of the first socket and the second socket of the socket unit to detect the position of the plug pins in the first socket and the second socket, and output the position signal of each socket to the controller.
[0016] The controller connects the first and second switches connected to the corresponding socket units according to the position signals of each socket.
[0017] Furthermore, the second in-situ detection module is respectively disposed at the bottom of the first socket and the bottom of the second socket of the socket unit.
[0018] Furthermore, the second in-situ detection module is selected from one of a distance sensor, a proximity switch, and a switch that is turned on by pressure and turned off when the pressure is released.
[0019] Furthermore, the pressure-activated and pressure-relieved disconnect switch is a switch that makes the circuit open when subjected to external pressure and disconnects the circuit when the external pressure is removed, including but not limited to micro switches, tactile switches, and detection switches.
[0020] Furthermore, the first switch is the first normally open contact of a relay;
[0021] The second switch is the second normally open contact of the relay;
[0022] The controller, based on the position signal sent by the in-situ detection component on the corresponding socket unit, outputs a drive signal to the relay to close the first normally open contact and the second normally open contact.
[0023] Furthermore, the socket unit also includes a third socket, and the third terminal of the external power supply is respectively connected to the third socket of each socket unit.
[0024] The beneficial effects of this invention are as follows:
[0025] In this embodiment, when the first switch and the second switch are not driven, the first switch disconnects the connection between the first busbar and the first socket of the corresponding socket unit; the second switch disconnects the connection between the second busbar and the second socket of the corresponding socket unit; and the position of the plug is detected in real time by the in-situ detection component, and the position signal is output to the controller; the controller drives the first switch and the second switch connected to the corresponding socket unit to turn on according to the position signal; this utility model dynamically controls the connection and disconnection between the plug unit and the external power supply by detecting the position of the plug by the in-situ detection component, avoiding electric shock caused by accidental contact when plugging or unplugging the plug or accidental insertion of conductive objects such as keys into the socket. Attached Figure Description
[0026] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
[0027] Figure 1 The circuit diagram of the anti-electric shock power strip of the present invention is shown.
[0028] Figure 2 A schematic diagram showing the connection between the controller and various devices according to the first embodiment of the present invention is provided.
[0029] Figure 3 This diagram illustrates the structure of the in-situ detection component of the first embodiment of the present invention mounted on a two-hole socket unit.
[0030] Figure 4 This diagram illustrates the structure of the in-situ detection component of the first embodiment of the present invention mounted on a three-hole socket unit.
[0031] Figure 5 A schematic diagram showing the connection between the controller and various devices according to a second embodiment of the present invention is provided.
[0032] Figure 6 This diagram illustrates the structure of the in-situ detection component of the second embodiment of the present invention mounted on a two-hole socket unit.
[0033] Figure 7 This diagram illustrates the structure of the in-situ detection component of the second embodiment of the present invention mounted on a three-hole socket unit.
[0034] Figure 8 The circuit diagram showing the connection between the third busbar and the three-hole socket unit of the present invention is shown.
[0035] Explanation of reference numerals in the attached figures
[0036] 1. In-situ detection component; 11. First in-situ detection module; 12. Second in-situ detection module; 2. Socket unit. Detailed Implementation
[0037] To more clearly illustrate the present invention, the following description, in conjunction with embodiments and accompanying drawings, further explains the invention. Similar components in the drawings are indicated by the same reference numerals. Those skilled in the art should understand that the specific description below is illustrative rather than restrictive and should not be construed as limiting the scope of protection of the present invention.
[0038] Example 1
[0039] This embodiment provides an anti-electric shock socket, including:
[0040] One or more socket units 2 and a controller;
[0041] The first end of the external power supply is connected to the first socket of each socket unit 2; a first switch is also connected between the first end of the external power supply and the first socket of each socket unit 2, so as to disconnect the connection between the first end of the external power supply and the first socket of the corresponding socket unit 2 when the first switch is not driven.
[0042] The second end of the external power supply is connected to the second socket of each socket unit 2; a second switch is connected between the second end of the external power supply and the second socket of each socket unit 2, so as to disconnect the connection between the external power supply and the second socket of the corresponding socket unit 2 when the second switch is not driven.
[0043] Each socket unit 2 is equipped with an in-position detection component 1, which is used to detect the in-position status of the plug and outputs an in-position signal to the controller.
[0044] The controller, based on the presence signal sent by the presence detection component 1 of the corresponding socket unit 2, drives the first switch and the second switch connected to the corresponding socket unit 2 to turn on.
[0045] In one specific implementation, such as Figure 1 As shown, the first terminal of the external power supply is the live wire L, and the second terminal is the neutral wire N; in this embodiment, there are 4 socket units 2. Figure 1 In this diagram, CPL1 is the first socket of socket unit 2 (1#), CPN1 is the second socket of socket unit 2 (1#), KA1-1 is the first switch of socket unit 2 (1#), and KA1-2 is the second switch of socket unit 2 (1#). Similarly, the labels of socket units 2 (2#), 3#, and 4# are similar to those above and will not be repeated here. At this time, when KA1-1 is not driven, the connection between the first busbar P1 and the first socket CPL1 of socket unit 2 (1#) will be disconnected; when KA1-2 is not driven, the connection between the first busbar P2 and the first socket CPN1 of socket unit 2 (1#) will be disconnected.
[0046] In this embodiment, when the first switch and the second switch are not driven, the first switch disconnects the connection between the first busbar and the first socket of the corresponding socket unit 2; the second switch disconnects the connection between the second busbar and the second socket of the corresponding socket unit 2; and the position of the plug is detected in real time by the in-situ detection component 1, and the position signal is output to the controller; the controller drives the first switch and the second switch connected to the corresponding socket unit 2 to turn on according to the position signal, so that under the drive of the controller, the connection between the first busbar and the first socket of the corresponding socket unit 2 is turned on by the first switch; and the connection between the second busbar and the second socket of the corresponding socket unit 2 is turned on by the second switch. This utility model dynamically controls the on / off of the plug unit and each busbar circuit by detecting the position of the plug by the in-situ detection component 1, avoiding accidental contact and electric shock when plugging or unplugging the plug.
[0047] Example 2
[0048] This embodiment is similar to Embodiment 1, except that there are more socket units 2 in this embodiment. Therefore, the anti-electric shock socket in this embodiment also includes:
[0049] First busbar and second busbar;
[0050] One end of the first busbar P1 is connected to the first end of the external power supply, and the other end is connected to the first socket of each socket unit 2.
[0051] One end of the second busbar P2 is connected to the second terminal of the external power supply, and the other end is connected to the second socket of each socket unit 2 respectively.
[0052] A first switch is connected between the first busbar P1 and the first socket of each socket unit 2, so as to disconnect the connection between the first busbar P1 and the first socket of the corresponding socket unit 2 when the first switch is not driven.
[0053] A second switch is connected between the second busbar P2 and the second socket of each socket unit 2, so as to disconnect the connection between the first busbar P1 and the second socket of the corresponding socket unit 2 when the second switch is not driven.
[0054] Example 3
[0055] This embodiment is similar to the scheme of Embodiment 1, except that the presence detection component 1 includes a first presence detection module 11, which is disposed on the side of the corresponding socket unit 2 near the plug.
[0056] In this embodiment, each socket unit 2 uses only one first presence detection module 11, thus the cost of this embodiment is lower.
[0057] The first in-situ detection module 11 is selected from one of a distance sensor, a proximity switch, and a pressure-activated and pressure-relieved disconnect switch.
[0058] In this embodiment, the pressure-activated and pressure-relieved disconnect switch is a switch that makes the circuit open when subjected to external pressure and disconnects the circuit when the external pressure is removed, including but not limited to micro switches, tactile switches, and detection switches.
[0059] In this embodiment, the detection switch, also called a limit switch, is a commonly used low-current control electrical appliance. It utilizes the collision of moving parts in production machinery to actuate its contacts, thereby connecting or disconnecting the control circuit to achieve a specific control objective.
[0060] In this embodiment, the distance sensor is a sensing device that receives the distance between the object and the distance sensor and emits a distance signal;
[0061] The proximity switch controls the circuit to be connected or disconnected based on the distance between the object and the proximity switch.
[0062] The proximity switch is selected from one of the following: photoelectric proximity switch, ultrasonic proximity switch, and capacitive proximity switch.
[0063] In one possible implementation, when the first presence detection module 11 uses a distance sensor, the plug is inserted into the corresponding socket unit 2, and the distance sensor collects the first distance of the plug in real time. When the first distance is less than a first preset threshold, the plug is fully inserted into the socket unit 2, and the plug is closest to the socket unit 2. The controller then drives the first and second switches of the corresponding socket unit 2 to turn on. The operation when unplugging the plug is similar and will not be described in detail here. In this embodiment, the distance sensor uses a 0-10V analog voltage output. The controller includes a voltage comparator for comparing the sensor output with a preset voltage value and an amplifier for amplifying the signal output of the voltage comparator to drive the relay. In this embodiment, the analog quantity of the distance sensor is compared by the voltage comparator. When it is greater than the preset voltage, a high-level signal is output, which is then amplified to drive the first and second switches to turn on.
[0064] In one possible implementation, when the first presence detection module 11 employs one of a proximity switch, a micro switch, a tactile switch, and a detection switch (this embodiment uses a proximity switch as an example), the plug is inserted into the corresponding socket unit 2. When the socket unit 2 is fully inserted, the proximity switch senses the plug approaching the sensing area and outputs a position signal indicating that the switch is fully inserted to the controller. The controller then drives the first and second switches of the corresponding socket unit 2 to turn on based on this position signal. The operation when the plug is unplugged is similar and will not be described in detail here. In this embodiment, the proximity switch outputs a high-level signal when it detects an object in the sensing area. The controller includes an amplifier for amplifying the high-level signal output by the proximity switch: In this embodiment, after the proximity switch senses an object in the sensing area, it outputs a high-level signal, which, after being amplified, drives the first and second switches to turn on.
[0065] like Figure 2 As shown, in this embodiment, KA1 is the 1# relay corresponding to the 1# socket unit 2, KA1-1 is the first normally open contact of the relay, and KA1-2 is the second normally open contact of the relay. The controller controls KA1-1 and KA1-2 to conduct by driving the coil of KA1 according to the data of the first presence detection module 11.
[0066] like Figure 3 and Figure 4 As shown, the number of sockets in the socket unit 2 in this embodiment can be 2 sockets or 3 sockets, and there is no limitation here.
[0067] Example 4
[0068] This embodiment is similar to the scheme of Embodiment 1, except that the presence detection component 1 includes a plurality of second presence detection modules 12. The second presence detection modules 12 are respectively disposed in the first socket and the second socket of the socket unit 2. More specifically, in this embodiment, the second presence detection modules are respectively disposed at the bottom of the first socket and the bottom of the second socket of the socket unit.
[0069] Each of the second in-situ detection modules 12 detects the position of the plug inserted into each socket and outputs the position signal of each socket to the controller;
[0070] When the controller receives position signals for each socket that are all preset values, it turns on the first and second switches connected to the corresponding socket unit.
[0071] In this embodiment, if the second presence detection module 12 is located at the bottom of the socket unit, it should be in the position when the plug is fully inserted.
[0072] In this embodiment, each socket unit 2 employs multiple second presence detection modules 12, which are respectively disposed at the bottom of the first socket and the bottom of the second socket in the socket unit 2. Therefore, this embodiment can accurately monitor the insertion status of each socket in the socket unit 2.
[0073] The second in-situ detection module 12 is selected from one of a distance sensor, a proximity switch, and a pressure-activated and pressure-relieved disconnect switch.
[0074] A pressure-activated and pressure-relieved disconnect switch is a switch that makes the circuit open when subjected to external pressure and disconnects the circuit when the external pressure is removed. It includes, but is not limited to, microswitches, tactile switches, and detection switches.
[0075] The proximity switch is selected from one of the following: inductive proximity switch, capacitive proximity switch, photoelectric proximity switch, and ultrasonic proximity switch.
[0076] In one possible implementation, the socket unit 2 has two holes. When the first presence detection module 12 uses a distance sensor, the plug is inserted into the corresponding socket unit 2, and each distance sensor collects the second distance of each prong of the plug in real time. When the second distance of each prong is less than a second preset threshold, the controller drives the first and second switches of the corresponding socket unit 2 to turn on. The operation when unplugging the plug is similar and will not be described in detail here. In this embodiment, the distance sensor adopts a 0-10V analog voltage output mode. The controller includes two voltage comparators for comparing the sensor output with a preset voltage value, an AND gate circuit, and an amplifier for amplifying the signal output of the AND gate circuit to drive the relay. In this embodiment, the analog quantity of each distance sensor is compared by the voltage comparators. When it is greater than the preset voltage, a high-level signal is output to the AND gate circuit. When the plug is fully inserted, each voltage comparator outputs a high level, and the AND gate circuit outputs a high-level signal, which is then amplified to drive the first and second switches to turn on.
[0077] In one possible implementation, when the first presence detection module 12 employs one of a proximity switch, a micro switch, a tactile switch, and a detection switch (this embodiment uses a proximity switch as an example), the plug is inserted into the corresponding socket unit 2. When the socket unit 2 is fully inserted, each proximity switch senses the plug approaching the sensing area and outputs a position signal indicating that the switch is fully inserted to the controller. The controller then drives the first and second switches of the corresponding socket unit 2 to turn on based on this position signal. The operation when the plug is unplugged is similar and will not be described in detail here. In this embodiment, the proximity switch outputs a high-level signal when it detects an object in the sensing area. The controller includes an AND gate circuit and an amplifier for amplifying the high-level signal output by the AND gate circuit. In this embodiment, after each proximity switch senses an object in the sensing area, it outputs a high-level signal. At this time, the high-level signal output by the AND gate circuit is amplified and then drives the first and second switches to turn on.
[0078] like Figure 5 As shown, in this embodiment, KA1 is the 1# relay corresponding to the 1# socket unit 2, KA1-1 is the first normally open contact of the relay, and KA1-2 is the second normally open contact of the relay. The controller controls KA1-1 and KA1-2 to conduct by driving the coil of KA1 according to the data of the two first presence detection modules 12.
[0079] like Figure 6 and Figure 7 As shown, the number of sockets in the socket unit 2 in this embodiment can be 2 sockets or 3 sockets, and there is no limitation here.
[0080] Example 5
[0081] This embodiment is similar to the solution in Embodiment 1, except that:
[0082] The first switch is the first normally open contact of the relay;
[0083] The second switch is the second normally open contact of the relay;
[0084] The controller outputs a drive signal to the relay to close the first normally open contact and the second normally open contact.
[0085] The relay is either a solid-state relay or an electromagnetic relay.
[0086] In this embodiment, the preferred switch is a solid-state relay. The controller drives the relay to activate the first and second switches.
[0087] In this embodiment, solid-state relays are preferred due to their advantages of long lifespan, high reliability, fast response, no noise or vibration, small size and lightweight, low power consumption and high efficiency, good electromagnetic compatibility, environmental adaptability and logic circuit compatibility.
[0088] Example 6
[0089] The socket unit also includes a third socket, and the third terminal of the external power supply is connected to the third socket of each socket unit.
[0090] Example 7
[0091] The anti-electric shock socket also includes a third busbar; one end of the third busbar is connected to the third terminal of the external power supply, and the other end is connected to the third socket of each socket unit 2.
[0092] In this embodiment, if Figure 8 As shown, the socket unit 2 has a three-hole structure, with the third terminal of the external power supply being ground GND and the third busbar being P3.
[0093] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.
[0094] It should also be noted that in the description of this invention, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0095] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.
Claims
1. A shockproof socket, characterized in that, include: Controller and one or more jack units; The first end of the external power supply is connected to the first socket of each socket unit; A first switch is also connected between the first end of the external power supply and the first socket of each socket unit; The second end of the external power supply is connected to the second socket of each socket unit; a second switch is also connected between the second end of the external power supply and the second socket of each socket unit. Each of the aforementioned socket units is provided with an in-position detection component, which is used to detect the position of the plug and output the position signal to the controller; The controller, based on the position signal sent by the in-situ detection component on the corresponding socket unit, turns on the first switch and the second switch connected to the corresponding socket unit; The presence detection component includes multiple second presence detection modules, which are respectively disposed in the holes of the first and second sockets of the socket unit to detect the position of the plug pins in the first and second sockets and output the position signal of each socket to the controller; the controller connects the first and second switches connected to the corresponding socket unit according to the position signal of each socket; the second presence detection modules are selected from distance sensors or proximity switches.
2. The anti-electric shock socket according to claim 1, characterized in that, The second in-situ detection module is respectively disposed at the bottom of the first socket and the bottom of the second socket of the socket unit.
3. The anti-electric shock socket according to claim 1, characterized in that, The first switch is the first normally open contact of a relay; The second switch is the second normally open contact of the relay; The controller, based on the position signal sent by the in-situ detection component on the corresponding socket unit, outputs a drive signal to the relay to close the first normally open contact and the second normally open contact.