WO2014101272A1

WO2014101272A1 - Extension socket with fully-versatile one-to-one protections

Info

Publication number: WO2014101272A1
Application number: PCT/CN2013/001346
Authority: WO
Inventors: 葛剑优; 祝振卿
Original assignee: Ge Jianyou
Priority date: 2012-12-31
Filing date: 2013-11-07
Publication date: 2014-07-03
Also published as: CN203180255U

Abstract

An extension socket having fully-versatile one-to-one protections, comprising: a shell (1), an input terminal (2) and at least two groups of output terminals (3). Each group of output terminals is provided with a protection threshold and an electronic protection switch (4) corresponding to an electro-characteristic of a current electrical appliance. The electronic protection switch cuts off the connection between the input terminal and the current group of output terminals when detecting that the protection threshold value is reached. The electronic protection switch can provide anti-thunder and anti-surge protection, overheat protection, overcurrent protection and short-circuit protection for electrical appliances of the corresponding jacks one to one, and set different protection ranges according to the magnitude of current in the current electrical appliances. Thus, if overcurrent or short circuit occurs in a certain jack, the electronic protection switch corresponding to the jack trips immediately, without affecting the normal operation of electrical appliances on other jacks.

Description

An all-in-one protection plug

Technical field

The utility model relates to the field of plugging, and more particularly to an all-round one-to-one protection plug.

Background technique

With the advancement of society and the continuous improvement of people's living standards, various types of electrical equipment are gradually increasing. In order to facilitate the placement of electrical equipment and the use of electrical equipment, it is indispensable in people's daily life. Auxiliary connection device.

At present, the common plugs in the market generally include a set of input terminals and at least two sets of output terminals, and at least two sets of output terminals are in parallel relationship with each other, so that power supply can be provided for at least two powered devices. The above-mentioned plug-in can only achieve a simple increase on the line. Once the plug-in encounters lightning and surge or a fault such as overheating, over-current, over-voltage or short-circuit, the above-mentioned plug-in will appear to burn itself and burn it. Loaded electrical appliances, even causing fires and other hidden dangers; In addition, when multiple sets of output terminals (ie jacks) on the existing plug-in sockets, where an overcurrent fault occurs in the circuit corresponding to one set of output terminals, the plugs are caused All the electrical appliances on the top can not be used, and even the whole household or company-wide electrical appliances can not be used, which is very inconvenient.

Utility model content

The main purpose of the utility model is to provide an all-round-to-one protection plug-in, so as to solve the problem that the prior art can not realize the protection of the plug-in and the electric appliance thereon, and can not make one-to-one pairs of different sets of output terminals. Protection issue. In order to achieve the above object, the solution of the present invention is: an omnidirectional one-to-one protection plug, the plug includes a housing, an input terminal, and at least two sets of output terminals, wherein each set of output terminals is disposed An electronic protection switch having a protection threshold corresponding to the current electrical characteristics of the appliance, the electronic protection switch cutting off the connection between the input terminal and the current group output terminal upon detecting the arrival of the protection threshold. Further, the electronic protection switch comprises a button cap, a soft iron core, a trip coil, a circuit board, a magnet, a sliding plate and a first spring, and the soft iron core is located under the button cap and can be driven to move downward by the button cap, The trip coil is wound around the soft iron core and when the load current exceeds the set value, the soft iron core generates the same magnetic field as the magnet to break the power supply, and the circuit board is fixedly connected with the soft iron core, and the circuit board is further connected. Forming a static contact and a through hole, the magnet is located directly under the soft iron core, and the soft iron core is magnetically attracted to the magnet by the button cap, and the magnet is fixedly connected with the sliding plate, and the sliding plate is further provided with a movement The contact and the spring post are located directly below the static contact. The first spring is sleeved on the spring post. The upper end of the spring post is movably disposed in the through hole, and the button cap is exposed to the outer casing. Further, the electronic protection switch further includes a short-circuit coil connected in series on the fire line, and the short-circuit coil is wound on the soft iron core. Further, the button cap further includes a button skeleton, the button cap is sleeved on the button skeleton, the button skeleton is connected to the upper end of the soft iron core, and a second spring is further disposed between the button skeleton and the soft iron core. Further, the electronic protection switch further includes a movable contact piece and a static contact piece, the static contact piece freely runs through the button frame and is formed with a first bending portion at the end portion, and the first bending portion is located at the button cap and the button frame The movable contact piece is fixedly inserted through the button skeleton and has a second fold at the end portion. a bent portion, a top of the button cap is formed with a bump in a direction of the button skeleton, and the second bent portion is disconnected from the first bent portion when the bump is in contact with the bump, and the second bent portion is separated from the bump A bent portion is in contact. After adopting the above structure, the utility model relates to an omnidirectional-to-one protection plug which has an electronic protection switch for protecting the applied electric appliance through each set of output terminals of the plug, the electronic The protection switch can protect the electrical appliances on the corresponding jacks one-to-one, specifically lightning protection, surge protection, overheat protection, overcurrent protection and short circuit protection, which are set according to the current electrical current. The scope of protection, so if a jack has overcurrent or short circuit, the corresponding electronic protection switch of the jack will immediately trip, does not affect the normal operation of the electrical appliances on other jacks. Thus, compared with the prior art, the utility model not only can avoid the burning of the plug itself and protect the loaded electrical appliances, but also has the protection accuracy because each electronic protection switch is personalized for the current electrical appliance. High and special that does not affect the operation of other electrical appliances

DRAWINGS

Figure 1 is a perspective view of the omnidirectional one-to-one protection of the arranging plug; Figure 2 is a front view of Figure 1; Figure 2 is a cross-sectional view of the line AA of Figure 2; Figure 2B is the BB line of Figure 2 FIG. 3 is a schematic view showing the overall structure of the omnidirectional one-to-one protection arranging according to the present invention; FIG. 3A is a schematic view of FIG. 3 from the middle to the half; FIG. FIG. 4A is a cross-sectional view of the OC line of FIG. 4. FIG. In the figure: Socket -100; housing - 1; input terminal 2; output terminal -3; electronic protection switch -4; button cap -41; button skeleton -411; bump -413; soft iron core -42; Spring-421; trip coil-43; circuit board-44; static contact 441; through-hole-442; magnet 45; sliding plate-46; moving contact 461; spring post-462; first spring 463; short-circuit coil -47; moving contact piece -48; second bending part -481; static contact piece -49; first bending part -491.

detailed description

In order to further explain the technical solutions of the present invention, the present invention will be described in detail below by way of specific embodiments. As shown in FIG. 1 , FIG. 2 , FIG. 2A and FIG. 2B , the socket 100 of the present invention includes a casing 1 , an input terminal 2 , and at least two groups. An output terminal 3 and an electronic protection switch 4 corresponding to each set of output terminals 3, the threshold of the electronic protection switch 4 corresponding to the electrical characteristics of the current consumer, and used to control between the input terminal and the current group output terminal The cutting and connecting 100 is composed of a plurality of sections, and each section (ie, each set of output terminals 3) is provided with an electronic protection switch 4 corresponding to the current electric appliance, and the electronic protection switch 4 is mainly disposed in the outer casing 1. Inside, the button cap 41 thereon is exposed to the outer casing 1 for human operation. Specifically, in this embodiment, as a specific embodiment of the electronic protection switch 4, as shown in FIG. 3, FIG. 3A, FIG. 4 and FIG. 4A, the electronic protection switch 4 includes a button cap 41 and a soft iron core. 42. A trip coil 43, a circuit board 44, a magnet 45, a sliding plate 46, and a first spring 463. The soft iron core 42 is located below the button cap 41 and can be driven to move downward by the button cap 41. The trip coil 43 is driven downward. Wrapped around the soft iron core 42, the trip coil 43 is closed when the load current exceeds a set value, so that the soft iron core 42 generates a magnetic field identical to that of the magnet 45. The circuit board 44 is fixedly connected to the soft iron core 42. The circuit board 44 is further formed with a static contact 441 and a through hole 442 (refer to FIG. 2B). The magnet 45 is located directly below the soft iron core 42. The soft iron core 42 is magnetically connected to the magnet 45 by the button cap 41. The magnet 45 is fixedly connected to the sliding plate 46. The sliding plate 46 is further provided with a movable contact 461 and a spring post 462. The movable contact 461 is located. Directly below the stationary contact 441, the first spring 463 is sleeved on the spring post 462. The upper end of the spring post 462 is movably disposed in the through hole 442, as shown in FIG. 2B. In addition, in order to protect the load when the load is short-circuited, the electronic protection switch 4 further includes a short-circuit coil 47 connected in series on the live line, and the short-circuit coil 47 is wound around the soft iron core 42. Specifically, in the embodiment, the button cap 41 further includes a button bobbin 411, which is sleeved on the button bobbin 411, the button bobbin 411 is connected to the upper end of the soft iron core 42, and the button bobbin 411 is soft. A second spring 421 is also disposed between the cores 42. Then, in order to prevent the surge, the electronic protection switch 4 further includes a dynamic contact piece 48 of the anti-surge normally closed switch and a static contact piece 49, and the static contact piece 49 freely penetrates the button frame 411 at the end A first bent portion 491 is formed between the button cap 41 and the button frame 411. The movable contact piece 48 is fixedly inserted through the button frame 411 and a second bent portion 481 is formed at the end portion. The top of the button cap 41 is formed with a bump 413 in the direction of the button frame 411. When the second bent portion 481 is in contact with the bump 413, the first bent portion 491 is disconnected, and the second bent portion 481 is convex. When the block 413 is separated, it is in contact with the first bent portion 491. Thus, when the power is to be turned on, the button cap 41 is pressed, and the anti-surge normally closed switch is first turned off. At this time, the button cap 41 drives the soft iron core 42 below it to move downward and approach the magnet 45. The magnetic core 42 is magnetically attracted to the magnet 45. Under the magnetic force between the soft iron core 42 and the magnet 45, the sliding plate 46 moves upward against the elastic force of the first spring 463, and makes the movable contact 461 And the static contact 441 is reset, the power is turned on; after the power is turned on, the anti-surge normally closed switch is closed again. When the load current exceeds the set value, the trip wire 43 causes the soft iron core 42 to generate the same magnetic field as the magnet 45. Since the magnetism is the same, the magnet 45 and the sliding plate 46 are repelled to the original position, so that the power source The switch is opened, which acts as an overcurrent protection. In addition, the utility model also provides a short-circuit coil 47, so that it can be loaded out When the short circuit is faulty, the power supply is disconnected to protect the circuit and the electric appliance; and by setting the movable contact 48 and the static contact piece 49 of the discharge switch, the anti-surge effect can also be achieved. The above-mentioned embodiments and drawings are not intended to limit the product form and mode of the invention, and any suitable changes or modifications made by those skilled in the art should be considered as not departing from the scope of the invention.

Claims

Claim

1. An all-in-one protection socket, the socket comprises a casing, an input terminal and at least two sets of output terminals; wherein each set of output terminals is provided with a protection threshold and current electrical appliances An electronic protection switch corresponding to the characteristic, the electronic protection switch disconnects the input terminal from the current group output terminal upon detecting the arrival of the protection threshold.

2. The omnidirectional one-to-one protection plug according to claim 1, wherein the electronic protection switch comprises a button cap, a soft iron core, a trip coil, a circuit board, a magnet, a sliding plate, and a first spring The soft iron core is located under the button cap and can be driven to move downward by the button cap. The trip coil is wound around the soft iron core and causes the soft iron core to be magnetically identical to the magnet when the load current exceeds a set value. The magnetic field is disconnected from the power source, and the circuit board is fixedly connected with the soft iron core. The circuit board is further formed with a static contact and a through hole. The magnet is located directly under the soft iron core, and the soft iron core is driven by the button cap. The magnet is magnetically attracted, the magnet is fixedly connected to the sliding plate, and the sliding plate is further provided with a movable contact and a spring column, the movable contact is located directly below the static contact, and the first spring is sleeved on the spring column, The upper end of the spring column is movably disposed in the through hole, and the button cap is exposed to the outer casing.

3. The omnidirectional one-to-one protection plug according to claim 1, wherein the electronic protection switch further comprises a short-circuit coil connected in series on the live line, the short-circuit coil being wound around the soft iron core.

4 . The omnidirectional one-to-one protection plug according to claim 1 , wherein the button cap further comprises a button bobbin, the button cap is sleeved on the button bobbin, and the button bobbin is connected to the upper end of the soft iron core And a second spring is disposed between the button skeleton and the soft iron core.

5. The omnidirectional one-to-one protection plug according to claim 1, wherein the electronic protection switch further comprises a movable contact piece and a static contact piece, the static contact piece freely running through the button frame and at the end Forming a first bending portion, the first bending portion is located between the button cap and the button skeleton, the movable contact piece is fixedly inserted through the button skeleton and is formed with a second bending portion at the end, the button cap is at the top of the button A bump is formed in the skeleton direction, and the second bent portion is disconnected from the first bent portion when the bump is in contact with the bump, and the second bent portion is in contact with the first bent portion when separated from the bump.