Solid insulation isolation static contact structure

Abstract

A solid insulation isolation static contact structure comprises a supporting seat, a static contact is embedded in one end of the supporting seat, a mounting nut is embedded in the other end of the supporting seat, and the supporting seat is a solid insulation medium and is used for constructing an all-solid insulation electric field structure with the static contact and the mounting nut. The insulating strength of a solid medium is better than that of a liquid medium and is better than that of a gas medium. And the defect of insufficient composite insulation strength in a small space structure can be perfectly solved. Composite insulation in an original insulation electric field structural design is converted into a complete solid medium insulation structure, so that potential safety hazards in operation of electric appliances are perfectly solved, and the insulation performance and the operation reliability of products are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of solid insulation isolation static contact structure, belong to the field of disconnecting switch. BACKGROUND

[0002] The existing isolation static contact seat includes cover for installing static contact and insulation part arranged at the back of cover, but the existing static contact structure can form high-voltage electric field.

[0003] As shown in Figure 1 Indicated position 1 is high-voltage electric field concentration position, and indicated position 2 is zero ground potential high-strength stainless steel screw assembly position, i.e. mounting screw fixing position of isolation static contact. The high-strength stainless steel screw fastens the static contact assembly on the metal grounding frame. The stainless steel screw is equipotential with the metal grounding frame, which is a zero ground potential point. The whole composite dielectric insulation electric field structure is constructed at this point, i.e. Figure 1 The high potential and the screw zero ground potential point form: metal conductor-solid insulation medium-gas insulation gap-zero ground potential fastening screw. In the composite insulation electric field structure, the effect of solid insulation medium is weakened to non-structural main insulation, and the gas insulation medium gap will bear most of the high-voltage electric field strength, so there is a higher requirement for the insulation strength of the gas gap. Once the gas insulation medium gap is small, it will cause corona and gas flashover breakdown, which constitutes a safety hazard. In actual installation of the product, high-voltage electric field concentration is generated at position 1, and an unreasonable electric field distribution structure is formed with the zero ground potential fastening screw assembled at position 2. INVENTION CONTENTS

[0004] The utility model aims at overcoming the shortcomings and deficiencies of the prior art and provides a solid insulation isolation static contact structure.

[0005] A solid insulation isolation static contact structure includes a support seat, one end of which is embedded with a static contact, and the other end is embedded with a mounting nut. The support seat is a solid insulation medium for constructing a full solid insulation electric field structure with the static contact and the mounting nut. When the static contact structure is installed, it directly contacts the metal frame and is threadedly connected. It is in a zero ground potential state. The solid medium insulation strength is better than that of liquid medium and better than that of gas medium. It can perfectly solve the defect of insufficient composite insulation strength in small space structure. The composite insulation in the original insulation electric field structure design is converted into a complete solid medium insulation structure, thereby perfectly solving the safety hazard in electrical appliance operation and improving the insulation performance and operation reliability of the product.

[0006] Preferably, the support seat is formed into an insulation support by mold pouring and solidification. The mold pouring and solidification process can ensure the shape accuracy and performance consistency of the support seat, thereby improving production efficiency and product quality.

[0007] Preferably, the support seat comprises a cover body, the cover body comprises a mounting portion arranged on the outer side wall, and the mounting nut is embedded in the mounting portion.

[0008] Further, the mounting nut is arranged at the upper and lower ends of the mounting portion, which improves the stability and uniformity of the installation and helps to improve the overall strength of the structure.

[0009] Further, the mounting portion is connected with the cover body through a support portion, and the mounting portion and the support portion are arranged in a T-shaped structure. The T-shaped structure design enhances the mechanical strength of the support portion and improves the anti-deformation ability of the overall structure.

[0010] Further, the top end surface of the support portion is smoothly connected with the upper end surface of the cover body. The gas insulation causes the problems of corona and gas flashover breakdown, and the solid insulation medium bears the main high-voltage electric field strength.

[0011] Further, a cladding portion for fixing the static contact is arranged on the inner wall of the cover body, and the static contact extends to the outside at both ends. The static contact is a current carrying loop and is at a high potential.

[0012] Preferably, the static contact is made of copper or aluminum conductive material.

[0013] The beneficial effects of the utility model are as follows: the solid medium insulation strength is better than that of liquid medium, and is better than that of gas medium. The defect of insufficient composite insulation strength in a small space structure can be perfectly solved. The composite insulation in the original insulation electric field structure design is converted into a complete solid medium insulation structure, thereby perfectly solving the safety hazard in the operation of the electric appliance and improving the insulation performance and operation reliability of the product. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings obtained according to these drawings without creative labor still belong to the scope of the utility model.

[0015] Figure 1 It is a traditional static contact structure diagram in the background art;

[0016] Figure 2 It is a structural diagram of the utility model;

[0017] Figure 3 It is a side view structural diagram of the utility model;

[0018] Figure 4 This is a rear view structural diagram of the present invention;

[0019] Figure 5 This is a bottom view of the structure of this utility model;

[0020] In the diagram, 10 is the support base; 11 is the cover; 12 is the enclosure; 13 is the mounting part; 14 is the support part; 15 is the stationary contact; and 16 is the mounting nut. Detailed Implementation

[0021] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0022] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0023] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0024] like Figures 2-5 The illustration shows an embodiment of a solid-insulated stationary contact structure according to this utility model. It includes a support base 10, with a stationary contact 15 fitted at one end and a mounting nut 16 fitted at the other end. The support base 10 is a solid insulating medium, used to construct a fully solid-insulated electric field structure with the stationary contact 15 and the mounting nut 16. During installation, the stationary contact structure directly contacts the metal frame via a threaded connection and is at zero ground potential. The solid dielectric insulation strength is superior to that of liquid dielectrics and even more superior to that of gaseous dielectrics. It perfectly solves the defect of insufficient composite insulation strength in small-space structures. By transforming the composite insulation in the original insulating electric field structure design into a completely solid dielectric insulation structure, it perfectly solves the safety hazards in electrical operation and improves the insulation performance and operational reliability of the product.

[0025] The support base 10 is formed into an insulating support by casting and curing in a mold. The mold casting and curing process can ensure the accurate shape and consistent performance of the support base 10, thereby improving production efficiency and product quality.

[0026] The support base 10 comprises a cover body 11, the cover body 11 comprises a mounting portion 13 arranged on the outer side wall, and the mounting nut 16 is embedded in the mounting portion 13.

[0027] The mounting nut 16 is arranged at the upper and lower ends of the mounting portion 13, which improves the stability and uniformity of the mounting and helps to improve the overall strength of the structure.

[0028] The mounting portion 13 is connected with the cover body 11 through a support portion 14, and the mounting portion 13 and the support portion 14 are arranged in a T shape. The T-shaped structure design enhances the mechanical stability of the support portion 14 and improves the anti-deformation ability of the overall structure.

[0029] The top end surface of the support portion 14 is smoothly connected with the upper end surface of the cover body 11. The problem of corona and gas flashover breakdown caused by gas insulation is avoided, and a solid insulation medium is used to bear the main high-voltage electric field strength.

[0030] The cover body 11 is provided with a cladding portion 12 for fixing the static contact 15 on the inner wall, and the static contact 15 extends to the outside at both ends. The static contact 15 is a current carrying loop and is at a high potential.

[0031] The static contact 15 is made of copper or aluminum conductive material.

[0032] The above only discloses the preferred embodiment of the utility model, of course, cannot limit the scope of the utility model, therefore, the equivalent changes made according to the utility model claims still belong to the scope covered by the utility model.

[0033] Although the utility model has been described with reference to a number of specific embodiments, it should be understood that the utility model is not limited to the disclosed specific embodiments. The utility model is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A solid insulation isolated static contact structure, characterized by: The support base is embedded with a static contact at one end and embedded with a mounting nut at the other end, and is a solid insulation medium for constructing a full solid insulation electric field structure with the static contact and the mounting nut.

2. The solid insulation isolated static contact structure of claim 1, wherein: The support base is formed by mold pouring and curing to form an insulation support.

3. The solid insulation isolated static contact structure of claim 1 or 2, wherein: The support base comprises a cover body, the cover body comprises a mounting portion arranged on the outer sidewall, and the mounting nut is embedded in the mounting portion.

4. The solid insulation isolated static contact structure of claim 3, wherein: The mounting nut is arranged at the upper and lower ends of the mounting portion.

5. The solid insulation isolated static contact structure of claim 3, wherein: The mounting portion is connected with the cover body through a support portion, and the mounting portion and the support portion are arranged in a T shape.

6. The solid insulation isolated static contact structure of claim 5, wherein: The top end surface of the support portion is smoothly connected with the upper end surface of the cover body.

7. The solid insulation isolated static contact structure of claim 3, wherein: An encapsulation portion for fixing the static contact is arranged on the inner wall of the cover body, and the static contact extends to the outside at both ends.

8. The solid insulation isolated static contact structure of claim 1 or 7, wherein: The static contact is made of copper or aluminum conductive material.

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