DE202017105645U1 - Protection device against current source overvoltage in case of heavy current transmission for use with a printed circuit board - Google Patents

Abstract

Heavy current overvoltage protective device for use with a printed circuit board, comprising an upper case (1), an inner case (3), a voltage sensitive electrical resistance (2) and a remote communication switch module (5), wherein the above-mentioned upper case (1) covering the inner housing (3) and the voltage - sensitive electrical resistor (2) and the remote communication switch module (5) are all provided on the inner housing (3), characterized in that further comprising a power strip (4), an arc separation thrust plate (6) and a Spring (8) are included, wherein the above-mentioned power strip (4) fixed to the inner housing (3) is provided and between the upper end and the electrical pole of the voltage-sensitive electrical resistance (2) by low-temperature solder a solder joint to form thermal release points is made and the under e end to outside of the inner housing (3) and forms the Lötanschluss, wherein the arc separation thrust plate (6) via the spring (8) elastically on the inner housing (3) is mounted and the upper end of the arc separation thrust plate (6) below the above designated thermal release points is provided and the side wall of the arc separation push plate (6) to the remote communication switch module (5) is pressed and causes the remote communication switch module (5) is in the closed state.

Description

Technical area

The present utility model relates to a current source overvoltage protection device with heavy current feedthrough for use with a printed circuit board.

State of the art

In the course of the rapid development of the photovoltaic industry, a transformation from original large concentrated forms of electric power generation by photovoltaic to distributed forms of electric power generation by photovoltaic, whereby facilities such as collecting tanks, inverters, etc. encounter new challenges in terms of volume and cost and where in Conventionally mounted lightning protection devices can no longer meet the ever-increasing demands of the industry in terms of technology and performance. Collector boxes and inverters presently tend to be miniaturized and designed at a low power level, continually producing more and more low power or medium power products.

For small collection and inverter systems, the current spatial requirements can no longer be met in terms of dimensions and volume due to the relatively small volume, the higher requirements for internal lightning protection and the likewise reduced lightning protection devices as such. As electronic elements continue to miniaturize and integrate, printed circuit boards with very dense placement of the elements are limited in area and space, and traditional overvoltage protection devices are difficult to meet overall integration and miniaturization requirements.

Thus, there is a real need for a technical improvement to remedy the deficiencies of the prior art.

Content of the utility model

To solve the above-described technical problems existing in the prior art, the present utility model provides a protection device against current source overvoltage in case of heavy current transmission for use in a printed circuit board.

Technical Concept of the Present Utility Model: Power source overvoltage protection device for use with a printed circuit board, comprising an upper housing, an inner housing, a voltage sensitive electrical resistor, and a remote commutation module, wherein the above described upper housing covers the inner housing, wherein the voltage sensitive electrical Resistor and the remote communication switch module are all provided on the inner housing, wherein also a power strip, an arc separation push plate and a spring are included, wherein the above-mentioned power strip attached to the inner housing is provided, wherein between the upper end and the electrical pole of the voltage-sensitive electrical resistance is made by low-temperature solder a solder joint to form thermal release points, wherein the lower end to the outside extends beyond the inner housing and forms the solder terminal, wherein the arc separation thrust plate is elastically supported by the spring on the inner housing, wherein the upper end of the arc separation thrust plate is provided below the above-mentioned thermal release points, wherein the side wall of the arc separation thrust plate is pressed to the Fernkommunikationsschaltermodul and causing the remote communication switch module to be in the closed state.

It is further provided that it is in the above-mentioned power strip is a plate-shaped construction, wherein on the power strip, a U-shaped closure is provided.

It is further provided that a wedge-shaped recess opening is provided at the upper end of the above-mentioned arc separation thrust plate, wherein the respective wedge-shaped recess opening abuts the above-mentioned thermal release points.

It is further provided that a wedge-shaped edge is provided on the side wall of the above-mentioned arc separation thrust plate, wherein the respective wedge-shaped edge abuts the Fernkommunikationsschaltermodul.

It is further provided that a position limiting groove is provided on the above-mentioned inner housing, wherein the spring is mounted within the respective position limiting groove.

It is further provided that the above-described Fernkommunikationsschaltermodul comprises a static spring plate, a movable spring plate and an insulating body, wherein the static spring plate and the movable spring plate are interconnected by the insulating body.

It is further provided that on the above-mentioned upper housing and above the Fernkommunikationsschaltermoduls befindlich a viewing window is provided, wherein at the relevant viewing window, a transparent hood is provided.

It is further provided that a plug-in pin is provided on the above-mentioned upper housing.

The present utility model provides the following advantages: In the heavy current carrying current overvoltage protection device for use with a circuit board of the present invention, interruption and release by an arc separation slide of one side, output of remote communication signals, field-of-sight display and terminal soldering are applied Functions such as high voltage, strong current transmission, remote communication signal output, viewing window status display, etc. are available. It is possible, within a very short time, to dissipate a tremendous pulse energy from the circuit due to a lightning strike to the ground via a short circuit, which reduces the electrical potential difference between the various terminals of the system and thus protects the equipment on the circuit. In addition, for the current source overvoltage protector device for use with a printed circuit board of the present invention, there is a concept for high current carrying and compact design with relatively small volume and relatively low cost, so that the ability to safely protect against surge currents and overvoltage in industries such photovoltaic, etc., while also meeting the high integration, miniaturization and series production requirements of wave soldering for industrial power sources.

Explanation of the illustrations

at it is a half-sectional view of the protection device against current source overvoltage during heavy current transmission for use for a printed circuit board according to the present utility model.

at it is an exploded view of the current source overvoltage protection device with heavy current transmission for use with a printed circuit board according to the present utility model.

at it is the representation of the remote communication module of the protection device against current source overvoltage during heavy current transmission for use for a circuit board ,

at it is the representation of the construction of the upper case of the present utility model.

Practical embodiments

The following is a further description of the present utility model based on the attached figures.

As in to As shown, the present invention is a power source overvoltage protection device for heavy current transmission for use with a printed circuit board including an upper housing 1 , an inner case 3 , a voltage-sensitive electrical resistance 2 and a remote communication module 5 , where the upper case 1 the inner case 3 covering, wherein the voltage-sensitive electrical resistance 2 and the remote communication switch module 5 all on the inner housing 3 are provided. On the side wall of the right end of the inner housing 3 are a power strip 4 , an arc separation thrust plate 6 and a spring 8th includes, wherein the power strip 4 on the inner housing 3 fixedly connected, wherein between the upper end and the electrical pole of the voltage-sensitive electrical resistance 2 a solder joint is formed by low temperature soldering to form thermal release points, the lower end extending outwardly of the inner housing 3 extends and forms the solder terminal, wherein the arc separation push plate 6 over the spring 8th elastic on the inner housing 3 is stored, wherein the upper end of the arc separation thrust plate 6 is provided below the thermal release points, wherein the side wall of the arc separation thrust plate 6 to the remote communication switch module 5 is pressed and causes the remote communication switch module 5 when closed. The arc separation thrust plate 6 can be under the spring force of the spring 8th be moved upward, wherein the arc separation push plate 6 with the remote communication switch module 5 coupled is movable. Before loosening the power strip 4 from the voltage-sensitive electrical resistance 2 there is the arc separation push plate 6 at the lower side of the thermal release points, without affecting the connection between the power strip 4 and the voltage sensitive electrical resistance 2 takes place, wherein the arc separation thrust plate 6 pressed against the spring plate of the remote communication switch module and the remote communication switch module is in the closed state.

At the power strip 4 of the present utility model is a plate-shaped construction, wherein on the power strip 4 a U-shaped closure 41 is provided, wherein the power bar 4 over the U-shaped closure in question 41 on the inner housing 3 is provided fixed.

At the upper end of the arc separation push plate 6 is a wedge-shaped recess opening 61 provided, wherein the respective wedge-shaped recess opening 61 encounters the above-mentioned thermal dissolution points. On the side wall of the arc separation push plate 6 is a wedge-shaped edge 62 provided, with the relevant wedge-shaped edge 62 to the remote communication switch module 5 encounters. To facilitate the assembly of the spring 8th is on the inner case 3 a position limiting groove 31 provided, the spring 8th within the relevant position limit groove 31 is attached.

On the upper case 1 and above the remote communication switch module 5 befindlich a viewing window is provided, wherein at the viewing window in question, a transparent hood 7 is provided. The upper case 1 covers the inner case 3 so that at the position of the viewing window, the observation of the arc separation push plate 6 to display the release state is possible.

When used for all thermal dissolution points that applies because of the electrical discharge of the lightning overvoltage in the circuit via the voltage-sensitive electrical resistance 2 in the event of excessive heating due to overloading of the voltage-sensitive electrical resistance 2 the heat energy is conducted to the thermal dissolution points formed by low temperature soldering. After reaching a certain temperature, the solder melts the thermal release points and the power strip 4 leaves under its own elasticity the voltage-sensitive electrical resistance 2 , At the same time, the arc separation push plate becomes 6 under the spring force of the spring 8th pushed upwards and there is the complete separation of power strip 4 and electrical pole of the voltage sensitive electrical resistance 2 with interruption of the relevant circuit. That on the upper case 1 located viewing window changes to red color and at the same time there is a separation of the arc separation push plate 6 from the remote communication switch module 5 wherein the remote communication switch module 5 changes from the closed state to the open state and a change signal is output to the outside, which means that there is loss of effect of the voltage-sensitive electrical resistance of the product in question. The arrangement of the entire construction makes a comprehensive use of space, so that a maximum space savings is achieved.

The remote communication switch module 5 includes a static spring plate 51 , a movable spring plate 52 and an insulation body 53 , where the static spring plate 51 and the movable spring plate 52 through the insulation body 53 connected to each other. The static spring plate 51 , the movable spring plate 52 and the insulation body 53 can be manufactured by injection molding as a whole or be mounted independently. On the insulation body 53 a clamp closure is provided, wherein a direct pressure connection with the inner housing 3 he follows.

In the present utility model, industrial fire retardant material is used for the inner housing. Because this material can take various shapes, is shock resistant, and at the same time ensures the electrical properties with secure insulation between the printed circuit board and the adjacent electronic elements in the course of use of the product, there are both good processing characteristics as well as safety and reliability.

On the upper case 1 is a direct plug-in pin 11 provided, which is connected by terminals without screws to the circuit board. This direct plug pin 11 makes assembly easier, saves production time and reduces costs.

The explanations given above are merely preferred practical embodiments of the present utility model. It should be noted that one skilled in the relevant technical field can produce various improvements provided that the principle of the present invention is met, such improvements being all within the scope of the present invention.

Claims (8)

Power source overvoltage protection device for use with a printed circuit board, comprising an upper housing ( 1 ), an inner housing ( 3 ), one voltage-sensitive electrical resistance ( 2 ) and a remote communication switch module ( 5 ), wherein the above-mentioned upper housing ( 1 ) the inner housing ( 3 ) and the voltage-sensitive electrical resistance ( 2 ) and the remote communication switch module ( 5 ) all on the inner housing ( 3 ) are provided, characterized in that in addition a power strip ( 4 ), an arc separation thrust plate ( 6 ) and a spring ( 8th ), wherein the above-mentioned power strip ( 4 ) on the inner housing ( 3 ) and between the upper end and the electrical pole of the voltage-sensitive electrical resistance ( 2 ) is made by low-temperature solder a solder joint to form thermal release points and the lower end to the outside of the inner housing ( 3 ) and forms the solder terminal, wherein the arc separation thrust plate ( 6 ) over the spring ( 8th ) elastically on the inner housing ( 3 ) and the upper end of the arc separation thrust plate ( 6 ) is provided below the above-mentioned thermal release points and the side wall of the arc separation thrust plate ( 6 ) to the remote communication switch module ( 5 ) and causes the remote communication module ( 5 ) is in the closed state. Power source overvoltage protection device for use with a printed circuit board according to claim 1, characterized in that, in the case of the current strip (above), 4 ) is a plate-shaped construction, wherein at the power strip ( 4 ) a U-shaped closure ( 41 ) is provided. Power source overvoltage protection device for use with a printed circuit board according to claim 1, characterized in that at the upper end of the above-mentioned arc separation thrust plate (FIG. 6 ) a wedge-shaped recess opening ( 61 ) is provided, wherein the respective wedge-shaped recess opening ( 61 ) encounters the above-mentioned thermal dissolution points. Power source overvoltage protection device for use with a printed circuit board according to claim 1, characterized in that on the side wall of the above-mentioned arc separation thrust plate (FIG. 6 ) a wedge-shaped edge ( 62 ), the wedge-shaped edge ( 62 ) to the remote communication switch module ( 5 ) pushes. Power source overvoltage protection device for use with a printed circuit board according to claim 1, characterized in that on the above-mentioned inner casing (FIG. 3 ) a position limiting groove ( 31 ) is provided, wherein the spring ( 8th ) within the relevant position limiting groove ( 31 ) is attached. Power source overvoltage protection device for use with a printed circuit board according to claim 1, characterized in that the above-described remote communication circuit module ( 5 ) a static spring plate ( 51 ), a movable spring plate ( 52 ) and an insulating body ( 53 ), wherein the static spring plate ( 51 ) and the movable spring plate ( 52 ) through the insulating body ( 53 ) are interconnected. Power source overvoltage protection device for use with a printed circuit board according to claim 1, characterized in that on the above-mentioned upper housing ( 1 ) and above the remote communication switch module ( 5 ) a viewing window is provided, wherein at the relevant viewing window, a transparent hood ( 7 ) is provided. Power source overvoltage protection device for use with a printed circuit board according to claim 1, characterized in that on the above-mentioned upper housing ( 1 ) a plug-in pin ( 11 ) is provided.

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