DMC all-insulation bottom plate for installing and fixing lightning arrester

Abstract

The utility model discloses a DMC all-insulation bottom plate for installing and fixing a lightning arrester. The DMC all-insulation bottom plate is a DMC mould pressing all-insulation bottom plate. A lightning arrester connecting terminal and a counter connecting terminal are arranged on the DMC mould pressing all-insulation bottom plate, and the lightning arrester connecting terminal and the counter connecting terminal are connected through an electric conductor arranged in the DMC mould pressing all-insulation bottom plate. The thickness of the DMC mould pressing all-insulation bottom plate is greater than or equal to the required minimum creepage distance; insulation isolation of the lightning arrester and the electric cabinet shell can be realized, the external insulation creepage distance is increased, electric leakage of the lightning arrester product is prevented, and the safety of the electric cabinet is guaranteed; the DMC all-insulation bottom plate for installing and fixing the lightning arrester is strong in hydrophobicity, high in tensile strength, resistant to acid and alkali aging, small in integral structure, adjustable in angle, wide in application range, and simple, convenient and rapid to install.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric high-voltage electrical appliances and relates to a DMC full-insulation bottom plate for installing and fixing a lightning arrester. Background Art

[0002] The arrester insulation base is an important part of the arrester. It is mainly responsible for isolating the arrester from the cabinet to ensure that the arrester works safely and stably under high voltage. The main function of the arrester insulation base is to isolate the arrester from the cabinet, avoiding the short circuit between the arrester and the cabinet, thereby ensuring the stability of the entire circuit when the arrester is grounded.

[0003] With the widespread application of power generation, arresters, as an important part of the power system, face a series of challenges in their outdoor installation environment. In areas with heavy condensation and humidity, the arrester installation base is prone to corrosion, resulting in insufficient insulation. In dirty areas, dirt easily accumulates on the surface of the arrester, resulting in insufficient creepage distance. In addition, the low air pressure and oxygen content in high-altitude areas also affect the performance of the arrester, especially the dry arc distance may be insufficient. These problems may cause the arrester product to break down or leak, thereby threatening the safe operation of the electrical cabinet. Utility Model Content

[0004] The utility model provides a DMC fully insulating base plate for installing and fixing a lightning arrester, so as to solve the problems that the existing lightning arrester installation base plate has insufficient insulation capacity in areas with heavy condensation humidity, insufficient creepage distance in dirty areas, and insufficient dry arc distance in high-altitude areas, which may easily lead to lightning arrester product breakdown or leakage, thereby affecting the safety of the electric cabinet.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A DMC fully insulating base plate for installing and fixing a lightning arrester, comprising: a DMC molded fully insulating base plate;

[0007] The DMC molded fully insulating bottom plate is provided with a lightning arrester connection terminal and a counter connection terminal. The lightning arrester connection terminal is used to connect the lightning arrester. The lightning arrester connection terminal and the counter connection terminal are connected through a conductor built into the DMC molded fully insulating bottom plate. The counter connection terminal is directly grounded or connected in series with the counter ground; the conductor is a U-shaped structure, one end of which is connected to the bottom end face of the lightning arrester connection terminal, and the other end is connected to the end face of the counter connection terminal; the thickness of the DMC molded fully insulating bottom plate is greater than or equal to the required minimum creepage distance or minimum dry arc distance.

[0008] Furthermore, the arrester connection terminal part is arranged inside the DMC molded full-insulation bottom plate; the arrester connection terminal is a bolt or a stud.

[0009] Furthermore, the DMC molded fully insulating bottom plate includes an upper part and a lower part; the lower part is a cylindrical structure, and the upper part is a trapezoidal column structure; the upper part of the DMC molded fully insulating bottom plate is coaxially arranged with the lower part.

[0010] Furthermore, an extension portion is provided on the upper portion of the DMC molded fully insulating bottom plate, and the edge of the extension portion is flush with the lower edge of the DMC molded fully insulating bottom plate. The counter connection terminal is provided at the edge of the extension portion.

[0011] Furthermore, a prefabricated connection insulation chamber is arranged in the DMC molded fully insulating bottom plate, the prefabricated connection insulation chamber is a hollow cavity, and the conductor is arranged inside the prefabricated connection insulation chamber; the prefabricated connection insulation chamber is an insulating epoxy tube.

[0012] Furthermore, the DMC molded fully insulating bottom plate is provided with prefabricated holes, and a plurality of the prefabricated holes are evenly distributed on the DMC molded fully insulating bottom plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses a DMC fully insulating base plate for installing and fixing a lightning arrester. The DMC molded fully insulating base plate is adopted. The base plate is made of DMC molded material and has strong hydrophobicity, corrosion resistance and insulation capacity, thereby ensuring the insulation between the lightning arrester body and the electric cabinet. The thickness of the DMC molded fully insulating base plate is greater than or equal to the required minimum creepage distance or minimum dry arc distance, thereby ensuring the dry arc and creepage distance of the lightning arrester. The lightning arrester connection terminal and the counter connection terminal are connected through a conductor built into the DMC molded fully insulating base plate, and the outside is fully insulated and isolated. When the lightning arrester product breaks down or leaks electricity, the breakdown or leakage current will not be transmitted to the installation shell, thereby ensuring the safety of the electric cabinet and reducing the hidden danger of leakage electricity.

[0015] Furthermore, when the counter is installed in the utility model, since the DMC molded fully insulating bottom plate is a fully insulating bottom plate, it is only necessary to connect the counter connection end with the counter connection terminal, and no insulating gasket is needed to be added, so the installation is simple.

[0016] Furthermore, the connection terminal of the lightning arrester of the utility model is a bolt or a stud with a thread, which can be directly tightened during installation without the aid of other tools, and is easy to install.

[0017] Furthermore, the conductor of the utility model is arranged inside the prefabricated connection insulation compartment, and the prefabricated connection insulation compartment is an insulating epoxy tube and is built inside the DMC full-insulation bottom plate, which further improves the insulation of the bottom plate.

[0018] Furthermore, the DMC molded fully insulating bottom plate of the utility model is provided with prefabricated holes, and the prefabricated holes are evenly distributed bolt holes, and the installation holes can be arbitrarily selected during installation to adjust the direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the DMC fully insulating base plate used for installing and fixing the lightning arrester of the utility model;

[0021] Figure 2 This is a top view of the DMC fully insulating base plate used for installing and fixing the lightning arrester of the utility model;

[0022] Figure 3 This is the installation structure diagram of the DMC fully insulating base plate used for installing and fixing the lightning arrester of the utility model;

[0023] Among them: 1-prefabricated connection insulation compartment; 2-lightning arrester connection terminal; 3-counter connection terminal; 4-conductor; 5-prefabricated hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The utility model is further described in detail below with reference to the accompanying drawings:

[0031] See also Figure 1 and Figure 2 The utility model discloses a DMC fully insulating base plate for installing and fixing a lightning arrester, comprising: a DMC molded fully insulating base plate, a prefabricated connecting insulating compartment 1, a lightning arrester connecting terminal 2, a counter connecting terminal 3, a conductor 4 and a prefabricated hole 5; the lower part of the DMC molded fully insulating base plate is a cylinder, and the upper part is a column with a trapezoidal cross-section, and the upper part of the DMC molded fully insulating base plate and the lower column share an axis; the upper part of the DMC molded fully insulating base plate is provided with an extension part, and the edge of the extension part is flush with the lower part of the DMC molded fully insulating base plate; the DMC molded fully insulating base plate is die-cast 100T, hot-molded at 170°C in one step, and has a thickness greater than or equal to 35 mm.

[0032] The prefabricated connecting insulating bin 1 is built into the upper part and the extended part of the DMC molded fully insulating bottom plate, and the prefabricated connecting insulating bin 1 is an insulating epoxy tube.

[0033] The lightning arrester connection terminal 2 is arranged on the upper part of the DMC fully insulating base plate, and a part of the lightning arrester connection terminal 2 is built into the DMC molded fully insulating base plate and connected to the prefabricated connection insulation compartment 1; the lightning arrester connection terminal 2 can use M12 bolts.

[0034] The counter connection terminal 3 is arranged at the edge of the extended portion of the DMC full-insulation bottom plate.

[0035] Conductor 4, the conductor 4 is built into both ends of the prefabricated connecting insulation compartment 1, and is used to connect the integrated lightning arrester 2 and the counter connecting terminal 3; the conductor 4 is a conductive metal sheet, one end of which is connected to the bottom end face of the lightning arrester connecting terminal 2, and the other end is connected to the bottom end face of the counter connecting terminal (3); the lightning arrester connecting terminal (2) is used to install the lightning arrester, and the counter connecting terminal (3) is used to connect the counter and the ground.

[0036] Prefabricated holes 5 are arranged at the lower edge of the DMC fully insulating bottom plate. There are 3 prefabricated holes 5 in total and they are evenly arranged at the lower edge of the DMC fully insulating bottom plate. They are M12 bolt holes, which can ensure the installation strength.

[0037] The arrester connection terminal 2 and the counter connection terminal 3 of the utility model are connected by a conductor, and are fully insulated and isolated externally, so as to isolate the arrester from the housing of the electric cabinet.

[0038] The DMC molded fully insulating base plate of the utility model is made of DMC insulating material. When the arrester connection terminal 2 is screwed into the arrester, the arrester body is fixedly insulated and separated from the electrical cabinet. Moreover, since the thickness of the DMC molded fully insulating base plate itself is greater than or equal to 35 mm, the dry arc and creepage distances of the arrester are increased. When the arrester product breaks down or leaks electricity, the breakdown or leakage current will not be transmitted to the installation shell, thereby ensuring the safety of the electrical cabinet and reducing the hidden dangers of leakage electricity.

[0039] The DMC material has excellent insulation properties, can effectively isolate current and prevent leakage or short circuit in equipment; it also has excellent heat resistance and chemical corrosion resistance; it has good flame retardancy and anti-tracking properties, and has high dielectric strength, corrosion resistance and stain resistance.

[0040] The installation method of the DMC fully insulating base plate for the installation and fixing of the utility model lightning arrester is as follows:

[0041] See also Figure 3 When the arrester is installed and fixed with the utility model arrester using the DMC fully insulated base plate, it is only necessary to screw the arrester connection terminal 2 into the arrester fixed electrode hole, and the exposed counter screw 3 is directly grounded or connected in series to the counter end.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A DMC fully insulating base plate for installing and fixing a lightning arrester, characterized in that: include: DMC molded fully insulated baseboard; The DMC molded fully insulating bottom plate is provided with a lightning arrester connection terminal (2) and a counter connection terminal (3); the lightning arrester connection terminal (2) is used to connect the lightning arrester; the lightning arrester connection terminal (2) and the counter connection terminal (3) are connected via a conductor (4) built into the DMC molded fully insulating bottom plate; the counter connection terminal (3) is directly grounded or connected in series with the counter ground; the conductor (4) is a U-shaped structure, one end of which is connected to the bottom end face of the lightning arrester connection terminal (2) and the other end is connected to the end face of the counter connection terminal (3); the thickness of the DMC molded fully insulating bottom plate is greater than or equal to the required minimum creepage distance or minimum dry arc distance.

2. The DMC fully insulating base plate for installing and fixing a lightning arrester according to claim 1 is characterized in that: The arrester connection terminal (2) is partially arranged inside the DMC molded fully insulating bottom plate.

3. The DMC fully insulating base plate for installing and fixing a lightning arrester according to claim 1 is characterized in that: The arrester connection terminal (2) is a bolt or a stud.

4. The DMC fully insulating base plate for installing and fixing a lightning arrester according to claim 1 is characterized in that: The DMC molded fully insulating bottom plate comprises an upper part and a lower part; the lower part is a cylindrical structure, and the upper part is a trapezoidal column structure.

5. The DMC fully insulating base plate for installing and fixing a lightning arrester according to claim 4 is characterized in that: The upper part and the lower part of the DMC molded fully insulating bottom plate are coaxially arranged.

6. The DMC fully insulating base plate for installing and fixing a lightning arrester according to claim 4 is characterized in that: An extension portion is provided on the upper portion of the DMC molded fully insulating bottom plate, and the edge of the extension portion is flush with the lower edge of the DMC molded fully insulating bottom plate.

7. The DMC fully insulating base plate for installing and fixing a lightning arrester according to claim 6 is characterized in that: The counter connection terminal (3) is arranged at the edge of the extension portion.

8. The DMC fully insulating base plate for installing and fixing a lightning arrester according to claim 1 is characterized in that: A prefabricated connection insulation chamber (1) is arranged in the DMC molded fully insulating bottom plate; the prefabricated connection insulation chamber (1) is a hollow cavity; and the conductor (4) is arranged inside the prefabricated connection insulation chamber (1).

9. The DMC fully insulating base plate for installing and fixing a lightning arrester according to claim 8, characterized in that: The prefabricated connecting insulating compartment (1) is an insulating epoxy tube.

10. The DMC fully insulating base plate for installing and fixing a lightning arrester according to claim 1, characterized in that: The DMC molded fully insulating bottom plate is provided with prefabricated holes (5), and a plurality of the prefabricated holes (5) are evenly distributed on the DMC molded fully insulating bottom plate.

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