阅读说明：本技术 一种电路过压保护插头 (Circuit overvoltage protection plug ) 是由 程少云 于 2019-10-18 设计创作，主要内容包括：本发明公开了一种电路过压保护插头,包括前壳与后壳,前壳与后壳活动连接,前壳中固定设有定位板,且定位板两侧中分别固定套设有延伸至前壳外的火线插片与零线插片,定位板上分别设有与火线插片及零线插片电性连接的指示灯与电磁铁。本发明将插头分为可拆装的前壳与后壳,通过在前壳中固定设置火线插片与零线插片,并利用导电线连接指示灯与通电生磁的电磁铁；通过在后壳中利用弹簧活动设置安装有火线导电板与零线导电板的移动板,利用通电生磁的电磁铁对永磁铁进行吸附,以带动火线导电板及零线导电板与火线插片及零线插片相连接,从而在确保外接电源电源稳压的情况下为电器供应电源支持,避免电源过压对电器造成短路损坏。(The invention discloses a circuit overvoltage protection plug which comprises a front shell and a rear shell, wherein the front shell is movably connected with the rear shell, a positioning plate is fixedly arranged in the front shell, a live wire insertion piece and a zero wire insertion piece which extend out of the front shell are respectively and fixedly sleeved on two sides of the positioning plate, and an indicator light and an electromagnet which are electrically connected with the live wire insertion piece and the zero wire insertion piece are respectively arranged on the positioning plate. The plug is divided into a front shell and a rear shell which are detachable, a live wire insertion piece and a zero line insertion piece are fixedly arranged in the front shell, and an indicator light and an electromagnet which is electrified to generate magnetism are connected by a conducting wire; the movable plate provided with the live wire conducting plate and the zero line conducting plate is movably arranged in the rear shell by utilizing the spring, the electromagnet which is electrified to generate magnetism is used for adsorbing the permanent magnet, so that the live wire conducting plate and the zero line conducting plate are driven to be connected with the live wire inserting piece and the zero line inserting piece, the support for an electric appliance supply power supply is realized under the condition of ensuring the voltage stabilization of an external power supply, and the damage of short circuit to the electric appliance caused by power overvoltage is avoided.)

1. A circuit overvoltage protection plug comprises a front shell (1) and a rear shell (2), and is characterized in that the front shell (1) is movably connected with the rear shell (2), a positioning plate (4) is fixedly arranged in the front shell (1), a live wire insertion sheet (5) and a zero line insertion sheet (6) extending out of the front shell (1) are respectively and fixedly sleeved in two sides of the positioning plate (4), an indicating lamp (7) and an electromagnet (8) which are electrically connected with the live wire insertion sheet (5) and the zero line insertion sheet (6) are respectively arranged on the positioning plate (4), guide grooves (10) are correspondingly formed in two sides of the rear shell (2), a movable plate (11) is arranged between the two guide grooves (10) in a sliding manner, springs (12) are correspondingly connected between two ends of the movable plate (11) and the rear shell (2), and live wire conductive plates (13) and zero line conductive plates (14) corresponding to the live wire insertion sheet (5) and the zero line insertion sheet (6) are respectively connected on two sides of the movable plate (11), the movable plate is characterized in that a permanent magnet (15) which is attracted with an electromagnet (8) in a heteropolar mode is fixedly connected onto the movable plate (11), two first-stage through holes (16) are formed in one side of the front shell (1), two second-stage through holes (17) corresponding to the first-stage through holes (16) are formed in the rear shell (2), and two external connecting wires (18) connected with the live wire conducting plate (13) and the zero line conducting plate (14) are sleeved in the rear shell (2).

2. The circuit overvoltage protection plug according to claim 1, wherein a clamping cavity (3) is formed in one end of the rear shell (2) corresponding to the front shell (1), and one end of the front shell (1) corresponding to the rear shell (2) is detachably sleeved in the clamping cavity (3).

3. The circuit overvoltage protection plug according to claim 1, wherein a conductive wire (9) is connected in sequence between the live wire insertion piece (5), the indicator light (7), the electromagnet (8) and the zero wire insertion piece (6), and the conductive wire (9) is uniformly wound on the electromagnet (8).

4. The circuit overvoltage protection plug according to claim 2, wherein the live wire conductive plate (13) and the zero wire conductive plate (14) sequentially slide through the second-stage through hole (17) and the first-stage through hole (16), and one ends of the live wire conductive plate (13) and the zero wire conductive plate (14) extending into the front shell (1) are respectively connected with the live wire insertion piece (5) and the zero wire insertion piece (6) in an abutting manner.

5. A circuit overvoltage protection plug according to claim 3, characterized in that said electromagnet (8) and permanent magnet (15) are located in the ends of the front shell (1) and the rear shell (2) which are close to each other, respectively.

6. A circuit overvoltage protection plug according to claim 1, characterised in that the ends of the two external connections (18) remote from the live conductor plate (13) and the neutral conductor plate (14) extend beyond the end of the rear housing (2).

Technical Field

The invention relates to the technical field of short circuit protection of circuit plugs, in particular to a circuit overvoltage protection plug.

Background

In the existing manufacturing technology, the power supply of general electronic products is realized through wires, and the plug is used as a part of a wire power supply mode and plays an important role. A plug and socket for domestic AC power supply has a male connector in the shape of rod or copper plate and a female connector-type power supply socket with slot or concave hole. The plug produced in the traditional manufacturing industry generally adopts the mode of directly connecting the conducting wire to the live wire inserted sheet and the zero line inserted sheet, and then utilizes the insulating shell to carry out sealing protection on the connecting end of the live wire inserted sheet and the zero line inserted sheet.

The traditional plug manufacture generally adopts the mode of utilizing electric wire and metal inserted sheet lug connection in the insulating housing, through pegging graft to the socket with live wire inserted sheet and zero line inserted sheet in order to realize the power and connect. However, during actual use, due to the fact that accidents such as poor contact, mistaken insertion and the like are easily caused by misoperation, and accidents that the voltage of an external power supply is unstable occasionally exist, when a plug is connected with a socket, accidents that the voltage of a circuit is too high easily occur, short circuit burnout can be further caused, a user cannot stretch out to pull out the plug from the socket immediately under the dangerous condition, the circuit of an electric appliance is easily damaged, and the maintenance and replacement cost of the electric appliance is increased; meanwhile, the abnormal connection of the plug and the external power supply increases the risk for the daily operation of the user and threatens the life and property safety of the user.

Disclosure of Invention

The invention aims to solve the problem that the circuit plug is difficult to provide overvoltage protection in the prior art and is easy to cause short circuit damage, and provides a circuit overvoltage protection plug.

In order to achieve the purpose, the invention adopts the following technical scheme:

a circuit overvoltage protection plug comprises a front shell and a rear shell, wherein the front shell is movably connected with the rear shell, a positioning plate is fixedly arranged in the front shell, a live wire insertion piece and a zero wire insertion piece which extend out of the front shell are respectively and fixedly sleeved in two sides of the positioning plate, an indicator lamp and an electromagnet which are electrically connected with the live wire insertion piece and the zero wire insertion piece are respectively arranged on the positioning plate, guide grooves are correspondingly formed in two sides of the rear shell, a moving plate is arranged between the two guide grooves in a sliding manner, springs are correspondingly connected between two ends of the moving plate and the rear shell, a live wire conductive plate and a zero wire conductive plate which correspond to the live wire insertion piece and the zero wire insertion piece are respectively connected on two sides of the moving plate, a permanent magnet which is attracted to a heteropolar pole of the electromagnet is fixedly connected on the moving plate, two primary through holes are formed in one side of the front shell, the rear shell is sleeved with two external connecting wires connected with the live wire conducting plate and the zero line conducting plate.

Preferably, a clamping cavity is formed in one end, corresponding to the front shell, of the rear shell, and one end, corresponding to the rear shell, of the front shell is detachably sleeved in the clamping cavity.

Preferably, the conductor wires are sequentially connected among the live wire insertion pieces, the indicator light, the electromagnet and the zero line insertion pieces, and are uniformly wound on the electromagnet.

Preferably, live wire current conducting plate and zero line current conducting plate slide in proper order and run through second grade through-hole and one-level through-hole, and live wire current conducting plate and zero line current conducting plate extend to the one end in the preceding shell respectively with live wire inserted sheet and zero line inserted sheet counterbalance connection.

Preferably, the electromagnet and the permanent magnet are respectively positioned in one end of the front shell and the rear shell which are close to each other.

Preferably, one end of each of the two external wires, which is far away from the live wire conducting plate and the zero wire conducting plate, extends out of one end of the rear shell.

Compared with the prior art, the invention has the following advantages:

1. the plug is arranged into two detachable front shell and rear shell structures, the positioning plate is fixedly arranged in the front shell, the live wire insertion piece and the zero line insertion piece which extend out of the front shell are arranged on the positioning plate, the indicating lamp and the electromagnet which are electrically connected with the live wire insertion piece and the zero line insertion piece are arranged on the positioning plate, the live wire insertion piece and the zero line insertion piece are inserted into the socket to supply power to the indicating lamp and the electromagnet, so that the voltage provided by the socket is stable and suitable, and the electromagnet generates attraction acting force which is attracted with the heteropolar pole of the permanent magnet after being electrified.

2. The movable plate capable of moving back and forth is movably installed in the rear shell by using the spring, the live wire conductive plate and the zero line conductive plate which are connected with the external connection are installed on the movable plate, the live wire conductive plate is separated from the live wire insertion sheet and the zero line conductive plate is separated from the zero line insertion sheet by using the movable plate, and the short circuit damage of the external connection and the electric appliance which are connected with the live wire conductive plate and the zero line conductive plate and caused by the overvoltage of the live wire insertion sheet and the zero line insertion sheet is avoided.

3. According to the invention, the live wire insertion piece and the zero line insertion piece are inserted into the front shell, and the permanent magnet is adsorbed by the electromagnet which is electrified to generate magnetism, so that the permanent magnet drives the movable plate to move in the rear shell close to the positioning plate in the front shell, and the live wire conductive plate and the live wire insertion piece are connected, and the zero line conductive plate and the zero line insertion piece are connected, thereby providing power supply for an electric appliance through the live wire conductive plate, the zero line conductive plate and an external connection wire.

In summary, the plug is divided into the front shell and the rear shell which are detachable, the live wire insertion piece and the zero line insertion piece are fixedly arranged in the front shell, and the indicator light and the electromagnet which is electrified to generate magnetism are connected by the conducting wire; the movable plate provided with the live wire conducting plate and the zero line conducting plate is movably arranged in the rear shell by utilizing the spring, the electromagnet which is electrified to generate magnetism is used for adsorbing the permanent magnet, so that the live wire conducting plate and the zero line conducting plate are driven to be connected with the live wire inserting piece and the zero line inserting piece, the support for an electric appliance supply power supply is realized under the condition of ensuring the voltage stabilization of an external power supply, and the damage of short circuit to the electric appliance caused by power overvoltage is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a circuit overvoltage protection plug according to the present invention;

fig. 2 is a cross-sectional view of a front shell mechanism of a circuit overvoltage protection plug according to the present invention;

fig. 3 is a cross-sectional view of a rear housing structure of a circuit overvoltage protection plug according to the present invention;

fig. 4 is an external view of a front shell structure of a circuit overvoltage protection plug according to the present invention;

fig. 5 is an external view of a rear shell structure of a circuit overvoltage protection plug according to the present invention.

In the figure: the automatic control device comprises a front shell 1, a rear shell 2, a clamping cavity 3, a positioning plate 4, a live wire insertion sheet 5, a zero line insertion sheet 6, an indicator light 7, an electromagnet 8, a conductive wire 9, a guide groove 10, a moving plate 11, a spring 12, a live wire conductive plate 13, a zero line conductive plate 14, a permanent magnet 15, a primary through hole 16, a secondary through hole 17 and an external connecting wire 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a circuit overvoltage protection plug comprises a front shell 1 and a rear shell 2, and is characterized in that the front shell 1 is movably connected with the rear shell 2, a positioning plate 4 is fixedly arranged in the front shell 1, a live wire insertion piece 5 and a zero wire insertion piece 6 extending out of the front shell 1 are respectively fixedly sleeved in two sides of the positioning plate 4 and are used for being plugged into a socket to supply power with an external power supply, an indicator lamp 7 and an electromagnet 8 electrically connected with the live wire insertion piece 5 and the zero wire insertion piece 6 are respectively arranged on the positioning plate 4, the indicator lamp 7 is turned on under normal conditions so as to judge the power-on condition of the plug, guide grooves 10 are correspondingly arranged in two sides of the rear shell 2, a moving plate 11 is arranged between the two guide grooves 10 in a sliding manner, the moving plate 11 moves horizontally in the guide grooves 10 so as to move close to or far away from the positioning plate 4, springs 12 are correspondingly connected between two ends of the moving plate 11 and the, referring specifically to fig. 3, the number of the springs 12 is two, so as to provide a balanced movable support for the moving plate 11, and the two sides of the moving plate 11 are respectively connected with a live wire conducting plate 13 and a zero wire conducting plate 14 which are corresponding to the live wire inserting piece 5 and the zero wire inserting piece 6, the moving plate 11 is fixedly connected with a permanent magnet 15 which is attracted with the different poles of the electromagnet 8, one side of the front shell 1 is provided with two primary through holes 16, and the rear shell 2 is provided with two secondary through holes 17 corresponding to the primary through holes 16, and referring to the description of figures 3-4 specifically, the primary through holes 16 correspond to the secondary through holes 17, so as to facilitate the synchronous movement of the live wire conducting strip 13 and the zero line conducting strip 14, two external connecting wires 18 connected with the live wire conducting strip 13 and the zero line conducting strip 14 are sleeved in the rear shell 2, and the external connecting wires 18 are connected with an electric appliance so as to supply power to the electric appliance through a plug.

Card chamber 3 has been seted up to the one end of back shell 2 corresponding preceding shell 1, and preceding shell 1 corresponds the one end detachably cover of back shell 2 and locates in the card chamber 3, when taking place the high pressure short circuit accident, can follow shell 2 and break away preceding shell 1, only need to the circuit in the preceding shell 1 maintain can, the operation of being convenient for.

Have connected gradually conductor wire 9 between live wire inserted sheet 5, pilot lamp 7, electro-magnet 8 and the zero line inserted sheet 6, and conductor wire 9 is evenly on locating electro-magnet 8, and when live wire inserted sheet 5 and zero line inserted sheet 6 peg graft to the socket in and voltage stability is suitable, can realize the power connection, at this moment, pilot lamp 7 lights, simultaneously, makes 8 circular telegrams of electro-magnet and magnetism.

Live wire current conducting plate 13 and zero line current conducting plate 14 slide in proper order and run through second grade through-hole 17 and one-level through-hole 16, and live wire current conducting plate 13 and zero line current conducting plate 14 extend to the one end in the preceding shell 1 respectively with live wire inserted sheet 5 and zero line inserted sheet 6 counterbalance connection, it is required to know that two current conducting plates are movable with the connected mode of two inserted sheets, under the prior art, can set up the one end that the two is connected into the block structure of mortise and tenon structure to it is electrically conductive to realize connecting. This is the prior art in the field and is not described in detail.

The electromagnet 8 and the permanent magnet 15 are respectively positioned at one end close to the front shell 1 and the rear shell 2, when the electromagnet 8 is not electrified, magnetic force does not exist, under the tension action of the spring 12, the electromagnet 8 is separated from the permanent magnet 15, and when the electromagnet 8 is electrified to generate an adsorption acting force which is opposite in polarity to the permanent magnet 15, the permanent magnet 15 drives the moving plate 11 to move towards one side close to the positioning plate 4 under the adsorption action of the electromagnet 8.

The ends of the two external wires 18, which are far away from the live conductor plate 13 and the zero conductor plate 14, extend out of one end of the rear shell 2, and are connected with the electric appliance to be powered.

The invention can be illustrated by the following operating modes:

firstly, referring to the accompanying drawing 1 for description, a front shell 1 is sleeved in a clamping cavity 3 of a rear shell 2, so that primary through holes 16 are correspondingly abutted with secondary through holes 17 one by one;

secondly, by operating the front shell 1, the live wire insertion piece 5 and the zero line insertion piece 6 are inserted into the socket, when the power supply is suitable for constant voltage, the live wire insertion piece 5, the indicator light 7 and the electromagnet 8 form a conductive path through a conductive wire 9, and under the condition, the electromagnet 8 generates magnetic force;

thirdly, the electromagnet 8 generates magnetic force and then adsorbs a permanent magnet 15 in the rear shell 2, the permanent magnet 15 drives the moving plate 11 to move towards one side close to the front shell 1 in the guide groove 10, and the moving plate 11 drives the live wire conductive plate 13 and the zero line conductive plate 14 to move in the same direction;

fourthly, the live wire conducting plate 13 and the zero line conducting plate 14 sequentially pass through the second-level through hole 17 and the first-level through hole 16, so that the live wire conducting plate 13 and the zero line conducting plate 14 entering the front shell 1 are respectively connected with the live wire inserting piece 5 and the zero line inserting piece 6 in the front shell 1 in an abutting mode, a power supply is connected, and then electric power support is provided for an electric appliance through the external connecting wire 18.

It should be noted that:

the plug is in the normal process for the electrical apparatus power supply, and pilot lamp 7 lights all the time to judge the circular telegram state of plug.

When mains voltage is too high, live wire inserted sheet 5 and zero line inserted sheet 6 provide too high voltage to pilot lamp 7 and electro-magnet 8, and the conducting wire 9 takes place to open a circuit this moment, and under this condition, electro-magnet 8 loses magnetic force.

Under the influence, the permanent magnet 15 is because of losing the effort of being attracted by the permanent magnet 8 for the movable plate 11 moves to the one end of keeping away from preceding shell 1 at guide way 10 under the tension effect of spring 12, drives live wire current conducting plate 13 and zero line current conducting plate 14 simultaneously and breaks away from in preceding shell 1, realizes live wire current conducting plate 13 and live wire inserted sheet 5, zero line current conducting plate 14 and zero line inserted sheet 6 phase separation, thereby stops to supply power for external connection 18.

When the circuit in the front shell 1 is short-circuited and damaged, the electric connection with the electric appliance can be disconnected in the first time, so that the open circuit protection is provided for the electric appliance.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.