CN108761157B

CN108761157B - Electronic information terminal

Info

Publication number: CN108761157B
Application number: CN201810370914.5A
Authority: CN
Inventors: 牛超; 朱振伟; 王东雪; 全磊; 杨茜; 王临铭
Original assignee: Henan Mechanical and Electrical Vocational College
Current assignee: Henan Mechanical and Electrical Vocational College
Priority date: 2018-04-24
Filing date: 2018-04-24
Publication date: 2023-03-21
Anticipated expiration: 2038-04-24
Also published as: CN108761157A

Abstract

The invention relates to the technical field of information terminals, in particular to an electronic information terminal which comprises a rectangular shell, wherein one end of the outer part of the rectangular shell is symmetrically provided with a power supply input end and a network input end, the other end of the outer part of the rectangular shell is symmetrically provided with a power supply output end and a network output end, one side of the outer side of the rectangular shell, which is positioned at the power supply output end, is provided with a grounding wire, a circuit board is arranged in the rectangular shell, one side of the circuit board is provided with a first self-recovery fuse, a second self-recovery fuse, a third self-recovery fuse, a first inductor and a second inductor in parallel, the other side of the circuit board is provided with a self-healing capacitor, a first heat conduction pipe and a second heat conduction pipe in parallel, and the power supply input end is connected with one end of the first self-recovery fuse through a conducting wire. The invention has the advantages of large flow capacity, high response speed, more functions, stable operation of the electric meter, prolonged service life of the electric meter and the electric meter, and the like.

Description

Electronic information terminal

Technical Field

The invention relates to the technical field of information processing terminals, in particular to an electronic information terminal.

Background

An electric energy meter is an instrument for measuring electric energy, and is also called a watt-hour meter, a fire meter and a kilowatt-hour meter, and refers to an instrument for measuring various electric quantities. When the electric energy meter is connected to a circuit to be tested, alternating currents flow through the current coil and the voltage coil, and the alternating currents respectively generate alternating magnetic fluxes in iron cores of the alternating currents and the voltage coil; the alternating magnetic flux passes through the aluminum plate, and eddy current is induced in the aluminum plate; the eddy currents are acted upon by a force in the magnetic field, so that the aluminum disk is rotated by a torque (active torque). The greater the power consumed by the load, the greater the current through the current coil, and the greater the eddy currents induced in the aluminum disk, the greater the torque that causes the aluminum disk to rotate. I.e. the magnitude of the torque is proportional to the power consumed by the load. The higher the power, the higher the torque and the faster the aluminum disc rotates. When the aluminum disc rotates, the aluminum disc is acted by the braking torque generated by the permanent magnet, and the direction of the braking torque is opposite to that of the active torque; the magnitude of the braking torque is in direct proportion to the rotating speed of the aluminum disc, and the faster the aluminum disc rotates, the larger the braking torque is. When the main torque and the braking torque reach temporary balance, the aluminum disc rotates at a constant speed. The power consumed by the load is proportional to the number of revolutions of the aluminum disk. When the aluminum disc rotates, the counter is driven to indicate the consumed electric energy. This is a simple process of operation of the electric energy meter. The self-restoring fuse is an overcurrent electronic protection element, and is made up by using high-molecular organic polymer, under the conditions of high pressure, high temp. and sulfurization reaction, and adding conductive particle material and adopting a special technological process. The traditional fuse overcurrent protection can only protect once and is blown to be replaced, and the self-recovery fuse has the dual functions of overcurrent and overheat protection and automatic recovery. The self-recovery fuse is composed of polymer resin which is specially processed and conductive particles distributed in the polymer resin. Under normal operation, the polymer resin tightly binds the conductive particles outside the crystalline structure to form a chain-shaped conductive electric path, the self-recovery fuse is in a low-resistance state at the moment, and the heat energy generated by the current flowing through the self-recovery fuse on the circuit is small, so that the crystal structure cannot be changed. When the short circuit or overload occurs to the circuit, the heat generated by the large current flowing through the self-recovery fuse melts the polymer resin, the volume is rapidly increased, a high-resistance state is formed, and the working current is rapidly reduced, so that the circuit is limited and protected. After the fault is eliminated, the self-recovery fuse is cooled and crystallized again, the volume shrinks, the conductive particles form a conductive path again, and the self-recovery fuse is recovered to be in a low-resistance state, so that the circuit is protected without manual replacement. The self-healing capacitor adopts a single-layer polypropylene film as a medium, and a layer of thin metal is evaporated on the surface of the single-layer polypropylene film to be used as a conductive electrode. When an over-high voltage is applied, the electric weak point of the polypropylene film is broken down, the resistance of the breakdown point is obviously reduced, the density of the flowing current is sharply increased, the metalized plating layer generates high heat, the metal conductor around the breakdown point is quickly evaporated and dissipated to form a blank area of the metal plating layer, and the breakdown point automatically recovers insulation.

The existing ammeter is internally provided with a lightning protection device, most of the existing ammeter is small in through flow, slow in response speed and single in function, the ammeter is unstable in operation, and the service lives of the ammeter and the ammeter are short.

Disclosure of Invention

The invention aims to solve the technical problem of providing an electronic information terminal which has the advantages of large through flow, high response speed, stable ammeter operation and capability of prolonging the service life of the electronic information terminal and the service life of the ammeter.

In order to solve the above problems, the present invention provides the following technical solutions: an electronic information terminal comprises a rectangular shell, a power input end, a power output end, a network input end, a network output end and a circuit board, wherein the power input end and the network input end are arranged at one end of the outside of the rectangular shell, the power output end and the network output end are arranged at the other end of the outside of the rectangular shell, the power input end and the network input end are respectively symmetrical with the power output end and the network output end correspondingly, a grounding wire is arranged at one side, positioned at the power output end, of the outside of the rectangular shell, a circuit board is arranged inside the rectangular shell, a first self-recovery fuse, a second self-recovery fuse, a third self-recovery fuse, a first inductor and a second inductor are arranged at one side of the circuit board in parallel, a self-recovery capacitor, a first heat conduction pipe and a second heat conduction pipe are arranged at the other side of the circuit board in parallel, the power input end is connected with one end of the first self-recovery fuse through a wire, the other end of the first self-recovery fuse is connected with one end of a second self-recovery fuse, the other end of the second self-recovery fuse is connected with one end of a third self-recovery fuse, the other end of the third self-recovery fuse is simultaneously connected with one ends of a first inductor and a second inductor through leads, the other ends of the first inductor and the second inductor are simultaneously connected with a power output end through leads, a network input end is connected with one end of a signal line self-healing capacitor, the other end of the self-healing capacitor is connected with one end of a first heat-conducting pipe through a signal line, the other end of the first heat-conducting pipe is connected with one end of a second heat-conducting pipe through a signal line, the other end of the second heat-conducting pipe is connected with the network output end through a signal line, one end of a grounding wire is connected with one end of a circuit board, and a transformer is arranged between the power input end and the power output end, the transformer converts the high voltage into low voltage for the system to use.

As a preferred embodiment of the present invention, the network input terminal and the network output terminal are both RJ40 interfaces, a PLC controller is disposed between the network input terminal and the network output terminal, and a specific program is input into the PLC controller to perform signal transmission between the network input terminal and the network output terminal.

As another preferable scheme of the present invention, the power input terminal and the power output terminal are both dual-hole power interfaces.

As another preferable scheme of the present invention, an installation plate is fixedly arranged at one end of the exterior of the rectangular housing, and two installation holes are symmetrically arranged in the installation plate.

In another preferred embodiment of the present invention, the ground wire is a copper-core cable, and the copper-core cable has good thermal conductivity and electrical conductivity.

As a further preferable scheme of the present invention, an indicator lamp is disposed on one side of the power input end of the external end wall of the rectangular housing, and the indicator lamp is connected in series between the power input end and the first self-healing fuse.

As a further preferable scheme of the present invention, the first heat conduction pipe and the second heat conduction pipe are both pure copper pipe absorption heat conduction pipes, and the pure copper pipe absorption heat conduction pipes have good heat conductivity, so that heat generated by the system can be timely transported away, and the service life of the device is prolonged.

As a still further preferable aspect of the present invention, the first inductor and the second inductor are LGB series inductors, and the inductance is an attribute of a closed loop and is a physical quantity, and when a current flows through the coil, a magnetic field is induced in the coil, and the induced magnetic field generates an induced current to counteract the current flowing through the coil.

The invention provides an electronic information terminal by improvement, compared with the prior art, the invention has the following improvements and advantages: the working principle of the terminal is that a high-resistance open-circuit state is presented at high voltage, a low-resistance short-circuit state is presented at low voltage, and the terminal can bear hundreds of amperes of heavy current to be used on a power supply circuit and a signal transmission circuit. When the lightning stroke and high voltage and large current are met, the electric meter is immediately broken, and the main power switch is turned off, so that the electric meter is protected. The device has the advantages that the first inductor, the second inductor, the first heat conduction pipe and the second heat conduction pipe are arranged on the circuit board, so that the flow of the device is large; the first self-recovery fuse, the second self-recovery fuse, the third self-recovery fuse and the self-healing capacitor are arranged on the circuit board, so that the device is high in response speed and long in service life; the first heat conduction pipe and the second heat conduction pipe can efficiently absorb and remove high-voltage surge clutter generated in a circuit, remove lightning interference and prevent static electricity, so that the stability of the ammeter is greatly improved, and the service life of the ammeter is prolonged; through setting up power input end, network input end, power output end, network output end, can dispel the heat to power and network simultaneously for the device function is more, is worth promoting and popularizing.

Drawings

The invention is described in further detail below with reference to the accompanying drawings:

FIG. 1 is a schematic structural diagram of an electronic information terminal according to the present invention;

fig. 2 is a side view of an electronic information terminal of the present invention;

FIG. 3 is a schematic diagram of a circuit board structure of an electronic information terminal according to the present invention;

FIG. 4 is a circuit configuration diagram of an electronic information terminal according to the present invention;

FIG. 5 is a view showing a structure of a rectangular housing of an electronic information terminal according to the present invention;

fig. 6 is a circuit configuration diagram of a network input terminal and a network output terminal of an electronic information terminal according to the present invention.

Description of reference numerals: the self-healing power supply comprises a rectangular shell 1, a power input end 2, a power output end 3, a network input end 4, a network output end 5, a mounting plate 6, a mounting hole 7, an indicator lamp 8, a circuit board 9, a self-healing capacitor 10, a first heat conduction pipe 11, a second heat conduction pipe 12, a first self-healing fuse 13, a second self-healing fuse 14, a third self-healing fuse 15, a first inductor 16, a second inductor 17, a grounding wire 18 and a transformer 19.

Detailed Description

Example one

The present invention provides an electronic information terminal by improvement, as shown in fig. 1 to 6, including a rectangular housing 1, one end of the exterior of the rectangular housing 1 is provided with a power input terminal 2 and a network input terminal 4, and the other end of the exterior of the rectangular housing 1 is provided with a power output terminal 3 and a network output terminal 5, the power input terminal 2 and the power output terminal 3 are symmetrically disposed at both ends of the rectangular housing 1, the network input terminal 4 and the network output terminal 5 are symmetrically disposed at both ends of the rectangular housing 1, one side of the exterior of the rectangular housing 1 located at the power output terminal 3 is provided with a ground wire 18, a circuit board 9 is mounted inside the rectangular housing 1, one side of the circuit board 9 is provided with a first self-healing fuse 13, a second self-healing fuse 14, a third self-healing fuse 15, a first inductor 16 and a second inductor 17 in parallel, and the other side of the circuit board 9 is provided with a first capacitor 10, a first heat pipe 11 and a second heat pipe 12 in parallel, the power input terminal 2 is connected to one end of the first self-healing fuse 13 through an lgc wire, the other end of the first self-healing fuse 13 is connected to one end of the second self-healing fuse 14 through a second inductor 16, the second self-healing fuse 14 and the other end of the second inductor 16 are connected to the second self-healing fuse 16 through a second inductor 17, and the second inductor 16 through a series inductor 17, and the second self-healing fuse 16, and the second inductor 16 are connected to the second inductor 17 through a second inductor 17, and the second inductor 16, and the second inductor 17, and the second inductor 16. The network input end 4 is connected with one end of the self-healing capacitor 10 through a signal line, the other end of the self-healing capacitor 10 is connected with one end of the first heat conduction pipe 11 through a signal line, the other end of the first heat conduction pipe 11 is connected with one end of the second heat conduction pipe 12 through a signal line, the other end of the second heat conduction pipe 12 is connected with the network output end 5 through a signal line, one end of the grounding wire 18 is connected with one end of the circuit board 9, a transformer 19 is arranged between the power input end 2 and the power output end 3, and the transformer 19 converts high voltage into low voltage for the system to use.

Example two

Network input 4 and network output 5 are the RJ45 interface, the RJ45 interface is convenient for insert the net twine, is provided with the PLC controller between network input 4 and the network output 5, through the specific procedure of the inside input of PLC controller, carries out signal transmission between network input 4 and the network output 5.

EXAMPLE III

Power input 2 and power output 3 are the diplopore power interface, the diplopore power interface is convenient for insert single-phase electricity.

Example four

The fixed mounting panel 6 that is equipped with of outside one end of rectangle shell 1, and two mounting holes 7 have been seted up to the inside symmetry of mounting panel 6, are convenient for install the device through the inside mounting hole 7 of mounting panel 6.

In the fifth embodiment, an indicator light 8 is arranged on one side of the outer end wall of the rectangular housing 1, which is located at the power input end 2, and the indicator light 8 is connected in series between the power input end 2 and the first self-recovery fuse 13, so that the protection state of the device on the power supply can be conveniently known through the indicator light 8.

Example six

The ground wire 18 is a copper core cable, the copper core cable has good heat conduction and electrical conductivity, the first heat conduction pipe 11 and the second heat conduction pipe 12 are pure copper pipe absorption heat conduction pipes, the pure copper pipe absorption heat conduction pipes have good thermal conductivity, heat generated by the system can be timely conveyed away, and the service life of the equipment is prolonged.

The second to sixth embodiments are specific modes of further preferred implementation on the basis of the first embodiment.

The working principle of the terminal is that an overvoltage protection electronic device combination which presents a high-resistance open-circuit state at low voltage and presents a low-resistance short-circuit state at high voltage and can bear hundreds of amperes of heavy current is connected in parallel on a power supply circuit and a signal transmission circuit for use. When the lightning stroke and high voltage and large current are met, the short circuit is immediately presented, and meanwhile, the main power switch is disconnected, so that the ammeter is protected.

The first inductor 16 and the second inductor 17 are LGB series inductors, which have inductance in the range of 0.22-100 muh and rated current of 0.09-0.4A, and inductance is a property of a closed loop and is a physical quantity, when a current flows through the coil, a magnetic field is formed in the coil to induce, and the induced magnetic field can generate an induced current to resist the current flowing through the coil.

The electronic information terminal has the advantages that single-phase electricity is connected to the power input end 2, the power output end 3 is connected with a power line of an ammeter, heat of the connected single-phase electricity can be effectively dissipated, a network cable is inserted into the network input end 4, the network output end 5 is connected with a network cable interface of the ammeter through the network cable, the heat of the connected network cable can be effectively dissipated, the other end of the grounding wire 18 is deeply buried under the ground by less than one meter, and through the connection, when electric leakage or current is too large, when a circuit is short-circuited or overloaded, heat generated by large current flowing through the first self-recovery fuse 13, the second self-recovery fuse 14 and the third self-recovery fuse 15 melts polymer resin, the size is rapidly increased, a high-resistance state is formed, and working current is rapidly reduced; self-healing capacitor 10 is when exerting too high voltage, polypropylene film electric weakness is punctured, breakdown point impedance obviously reduces, the current density that flows through sharply increases, make the metallization cladding produce the high heat, the metal conductor evaporation loss rapidly around the breakdown point, form metal coating blank space, breakdown point self recovery is insulating, thereby limit and protect the circuit, can effectively prevent that the ammeter from being hit by the thunder, first heat pipe 11 and second heat pipe 12 can absorb with high efficiency, clear away the high voltage surge clutter that produces in the circuit, clear away thunder and lightning interference and prevent the production of static, the reliability and the life of ammeter have greatly been improved.

While the foregoing description of the disclosed embodiments has been provided with reference to various modifications to these embodiments, it will be apparent to those skilled in the art that the general principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an electronic information terminal, includes rectangle shell (1), power input end, power output end, network input end, network output end and circuit board, power input end inserts single-phase electricity, its characterized in that: a power supply input end (2) and a network input end (4) are arranged at one external end of the rectangular shell (1), a power supply output end (3) and a network output end (5) are arranged at the other external end of the rectangular shell (1), the power supply input end and the network input end are respectively and symmetrically corresponding to the power supply output end and the network output end, and a grounding wire (18) is arranged on one side, located at the power supply output end (3), of the outer side of the rectangular shell (1); a circuit board (9) is installed inside the rectangular shell (1), a first self-recovery fuse (13), a second self-recovery fuse (14), a third self-recovery fuse (15), a first inductor (16) and a second inductor (17) are arranged on one side of the circuit board (9) in parallel, and a self-healing capacitor (10), a first heat conduction pipe (11) and a second heat conduction pipe (12) are arranged on the other side of the circuit board (9) in parallel; the power input end (2) is connected with one end of a first self-recovery fuse (13) through a conducting wire, the other end of the first self-recovery fuse (13) is connected with one end of a second self-recovery fuse (14), the other end of the second self-recovery fuse (14) is connected with one end of a third self-recovery fuse (15), the other end of the third self-recovery fuse (15) is simultaneously connected with one ends of a first inductor and a second inductor through conducting wires, the other end of the first inductor (16) and the other end of the second inductor (17) are simultaneously connected with the power output end (3) through conducting wires, the network input end (4) is connected with one end of a self-recovery capacitor (10) through a signal wire, the other end of the self-recovery capacitor (10) is connected with one end of a first heat-conducting pipe (11) through a signal wire, the other end of the first heat-conducting pipe (11) is connected with one end of a second heat-conducting pipe (12) through a signal wire, the other end of the second heat-conducting pipe (12) is connected with the network output end (5) through a signal wire, one end of a grounding wire (18) is connected with one end of a power supply input end (2) and a middle transformer output end (3) of a circuit board (19); the network input end (4) and the network output end (5) are both RJ45 interfaces, and a PLC (programmable logic controller) is arranged between the network input end (4) and the network output end (5); the first heat conduction pipe (11) and the second heat conduction pipe (12) are both pure copper pipe absorption heat conduction pipes.

2. An electronic information terminal according to claim 1, characterized in that: and the power input end (2) and the power output end (3) are both double-hole power interfaces.

3. An electronic information terminal according to claim 1, characterized in that: the mounting plate is characterized in that a mounting plate (6) is fixedly arranged at one end of the outer portion of the rectangular shell (1), and two mounting holes (7) are symmetrically formed in the mounting plate (6).

4. An electronic information terminal according to claim 1, characterized in that: the grounding wire (18) is a copper core cable.

5. An electronic information terminal according to claim 1, characterized in that: and an indicating lamp (8) is arranged on one side of the outer end wall of the rectangular shell (1) positioned at the power input end (2), and the indicating lamp (8) is connected between the power input end (2) and the first self-recovery fuse (13) in series.

6. An electronic information terminal according to claim 1, characterized in that: the first inductor (16) and the second inductor (17) are both LGB series inductors.