WO2018201606A1

WO2018201606A1 - Low residual-voltage gap-type surge protection device

Info

Publication number: WO2018201606A1
Application number: PCT/CN2017/092241
Authority: WO
Inventors: 郑品章
Original assignee: 郑品章
Priority date: 2017-05-02
Filing date: 2017-07-07
Publication date: 2018-11-08
Also published as: CN206774686U

Abstract

Provided is a low residual-voltage gap-type surge protection device, which belongs to the field of surge protectors and resolves the issue in which point contact between a graphite electrode of an existing surge protection device and a high voltage discharge needle may easily cause a contact failure. The surge protection device comprises a plurality of spaced electrodes (4) made of a graphite material, a spacer (3) disposed between two adjacent electrodes (4), and high voltage discharge needles (1) disposed on the same side of all of the electrodes (4) and abutting the graphite electrodes (4). The surge protection device further comprises a clamping plate (2), the electrode (4), the spacer (3), and the high voltage discharge needle (1) being disposed between two clamping plates (2), and the two clamping plates (2) being locked and fixed by a fastener (5). The high voltage discharge needle (1) comprises a contact portion (11) connected to the graphite electrode and a conductive portion (12) integrally connected to the contact portion. After being clamped by the clamping plate (2), the high voltage discharge needle (1) and the graphite realize surface-to-surface contact such that a contact area is greatly increased and a contact effect is better, thereby preventing a situation of poor contact between the two and being capable of undergoing repeated multiple electrical surges.

Description

[Name of invention established by ISA in accordance with Rule 37.2] Low residual voltage gap type surge protector

Technical field

The invention belongs to the field of surge protectors, and in particular relates to the construction of a low residual voltage gap type surge protector.

Background technique

As shown in Fig. 1, the graphite electrode of the existing surge protector is in point contact with the high-pressure discharge needle. Under the repeated action of the electric shock, the contact of the weak point material is poor, and the inrush current is generated. The electromotive force vibration forces the contact point to form an open circuit and cannot trigger continuous discharge of the multilayer gap. There is resistance in the upper end and the lower end of the graphite electrode. When the circuit is turned on, the effective area cannot be formed to turn on, and the meaning of the protection circuit is lost.

Summary of the invention

The object of the invention is to use point contact between the graphite electrode of the existing surge protector and the high-pressure discharge needle, which is easy to cause contact failure and the resistance of the upper end and the lower end of the graphite electrode, and the effective area can not be formed when the circuit is opened. A low-resistance gap type surge protector with good contact effect.

The present invention is achieved by the following technical solutions:

The structure of the low residual pressure gap type surge protector comprises a plurality of electrodes made of graphite material spaced apart, and the adjacent two electrodes are separated by a gasket made of an insulating material on the same side of each electrode a high-pressure discharge needle disposed adjacent to the graphite electrode, and a clamping plate for fixing the electrode, the gasket and the high-pressure discharge needle, the electrode, the gasket and the high-pressure discharge needle being disposed between the two clamping plates, and the two clamping plates The high pressure discharge needle includes, by fastener fastening, a contact portion connected to the graphite electrode and a conductive portion integrally connected to the contact portion.

The electrode shape is a circular or C-shaped or U-shaped or a flat or I-shaped or circular or hollow circular or polygonal or hollow polygon.

The high pressure discharge needle contact portion is in the shape of a meandering or C-shaped or U-shaped or a flat or I-shaped or circular or hollow circular or polygonal or hollow polygon.

The shim shape is a circular or C-shaped or U-shaped or a flat or I-shaped or a circular or hollow circular or polygonal or hollow polygon.

The conductive portions of the respective high pressure discharge needles are directed in the same direction.

An end surface of the electrode adjacent to the high-voltage discharge needle is provided with a recessed portion into which the contact portion of the high-pressure discharge needle is embedded, and a contact portion of the high-voltage discharge needle is disposed at the recessed portion.

The high-pressure discharge needle is made of a metal material having electrical conductivity.

The invention has the beneficial effects that in the invention, after the clamping by the clamping plate, the surface contact between the high-pressure discharge needle and the graphite is adopted, the contact area is greatly increased, the contact effect is better, and the contact between the two is avoided. In the case, it can withstand the repeated effects of electric shock and has high practicability.

DRAWINGS

1 is a schematic structural view of a prior art;

Figure 2 is a schematic view of the structure of the present invention;

Figure 3 is a schematic view showing a 匚-shaped structure of a contact portion of a high-pressure discharge needle;

Figure 4 is a schematic view showing the in-line structure of the contact portion of the high-pressure discharge needle;

Figure 5 is a schematic view showing the rectangular structure of the contact portion of the high voltage discharge needle;

Figure 6 is a schematic view showing the square structure of the contact portion of the high pressure discharge needle;

Figure 7 is a schematic view showing the elliptical structure of the contact portion of the high pressure discharge needle;

Figure 8 is a schematic view showing the triangular structure of the contact portion of the high pressure discharge needle;

Figure 9 is a schematic view showing the hexagonal structure of the contact portion of the high voltage discharge needle;

Figure 10 is a schematic view showing the circular structure of the contact portion of the high pressure discharge needle;

Figure 11 is a schematic view showing the structure in which the electrode is provided with a recessed portion;

Figure 12 is a schematic view showing the structure of a common electrode.

detailed description

The invention is further illustrated by the following examples.

Example

The structure of the low residual voltage gap type surge protector shown in FIG. 2-12 includes a plurality of electrodes 4 made of graphite material spaced apart, and a gasket 3 made of an insulating material between adjacent electrodes. Separated, a high-pressure discharge needle 1 disposed close to the graphite electrode is disposed on the same side of each electrode, and a clamping plate 2 for fixing the electrode, the gasket and the high-pressure discharge needle is provided, and the electrode, the gasket and the high-pressure discharge needle are disposed at Between the two clamping plates, and the two clamping plates are locked and fixed by a fastener 5, the high-voltage discharge needle includes a contact portion 11 connected to the graphite electrode and a conductive portion 12 integrally connected to the contact portion. The electrode shape is a circular or C-shaped or U-shaped or a flat or I-shaped or circular or hollow circular or polygonal or hollow polygon. The shape of the contact portion of the high-pressure discharge needle and the shape of the gasket are the same as the shape of the electrode. The conductive portions of the respective high pressure discharge needles are directed in the same direction. Optionally, an end surface of the high-voltage discharge needle which is closely attached to the electrode is provided with a concave portion embedded in the contact portion of the high-pressure discharge needle for the hollow structure, and the contact portion of the high-pressure discharge needle is disposed at the concave portion, thereby saving space and hollowing out at the same time Part of the inner wall can be in contact with the electrode to increase the contact effect. Said The high pressure discharge needle is made of a metal material having electrical conductivity.

In the invention, after the clamping plate is clamped, the surface contact between the high-pressure discharge needle and the graphite is adopted, the contact area is greatly increased, the contact effect is better, thereby avoiding the situation of poor contact between the two, and being able to withstand the electricity. The repeated effects of the impact are strong and practical.

The basic principles, main features, and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing embodiments and the description of the present invention. Simple modifications and substitutions by the skilled person are within the scope of the invention.

Claims

The structure of the low residual pressure gap type surge protector is characterized in that: an electrode made of a plurality of graphite materials arranged at intervals is arranged, and the adjacent two electrodes are separated by a gasket made of an insulating material at each electrode a high-pressure discharge needle disposed on the same side of the graphite electrode, and a clamping plate for fixing the electrode, the gasket and the high-pressure discharge needle, and the electrode, the gasket and the high-pressure discharge needle are disposed between the two clamping plates, and The two clamping plates are fixed by a fastener, the high pressure discharge needle comprising a contact portion connected to the graphite electrode and a conductive portion integrally connected to the contact portion.
The construction of a low residual voltage gap type surge protector according to claim 1, wherein said electrode shape is a dome or a C shape or a U shape or a shape of a letter or an I or a circle or a hollow circle. Shape or polygon or hollow polygon.
The low residual voltage gap type surge protector according to claim 1 or 2, wherein the high pressure discharge needle contact portion has a shape of a meandering shape or a C shape or a U shape or a shape or an I shape or Round or hollow circles or polygons or hollow polygons.
The construction of a low residual pressure gap type surge protector according to claim 3, wherein said spacer is in the shape of a dove or C or U or a zigzag or I or circular or hollow A circle or polygon or a hollow polygon.
The structure of a low residual voltage gap type surge protector according to claim 1, wherein said conductive portions of said high voltage discharge needles are directed in the same direction.
The structure of the low residual voltage gap type surge protector according to claim 3, wherein an end surface of the electrode that is in close contact with the high voltage discharge needle is provided with a recessed portion in which the contact portion of the high voltage discharge needle is embedded, and the high voltage A discharge needle contact portion is provided at the recessed portion.
The low residual voltage gap type surge protector according to claim 3, wherein the high voltage discharge needle is made of a metal material having electrical conductivity.
The structure of a low residual voltage gap type surge protector according to claim 6, wherein said electrode is attached to the high voltage discharge needle to form an equipotential.