Multipath voltage measurement patch board applied to SF6 insulation

Abstract

The utility model relates to the field of high voltage measurement, in particular to a multi-path voltage measurement patch board applied to SF6 insulation, which comprises an insulating bottom plate and more than two binding posts, the insulating bottom plate is provided with uniformly distributed counterbores, the binding posts are matched with binding post fixing holes on the insulating bottom plate and are fixedly connected with spring washers through locking nuts, and the spring washers are fixedly connected with the insulating bottom plate. A sealing ring is arranged between the binding post and the insulating bottom plate, and the upper end and the lower end of the binding post are provided with wiring threads. The utility model has the advantages that: 1, the insulating bottom plate is made of high-strength MC nylon, is not easy to absorb moisture, has high mechanical strength, and can be freely designed according to the number of measured voltage paths; 2, the binding post is detachable, and can be independently replaced when being damaged; the service life is greatly prolonged after materials are replaced, and the production and manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to high voltage measurement technical field, concretely is a kind of multi-channel voltage measurement terminal block for SF6 insulation. BACKGROUND

[0002] Current SF6 insulation multi-channel voltage measurement terminal block has many shortcomings: first, using mold casting, it is difficult to modify after shaping;Second, the measurement voltage channel is fixed and single, and the applicability is not strong;Third, the manufacturing cost is high;Fourth, the terminal post is built-in, and it is not easy to replace once damaged. SUMMARY

[0003] The utility model discloses a kind of multi-channel voltage measurement terminal block for SF6 insulation, to solve the problems in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of multi-channel voltage measurement terminal block for SF6 insulation, including insulation base plate 1 and the terminal post 2 of quantity more than 2, insulation base plate 1 is equipped with equal division's countersunk head hole 102, terminal post 2 is cooperated with the terminal post fixed hole 103 on insulation base plate 1, and is fixedly connected by lock nut 4 and spring washer 5, it is characterized in that: the terminal post 2 between insulation base plate 1 is equipped with sealing ring 3, and is settled in sealing groove 201 on terminal post 2, while the upper and lower ends of terminal post 2 are equipped with terminal thread 202.

[0005] Further, the material of the insulation base plate 1 is high-strength MC nylon.

[0006] Further, the material of the terminal post 2 and the lock nut 4 is 304 stainless steel.

[0007] Further, the insulation base plate 1 is equipped with wire groove 101 equal to the terminal post fixed hole 103 and equally divided.

[0008] Further, the bottom of the terminal post 2 is milled flat, which facilitates locking.

[0009] Further, the material of the sealing ring 3 is EPDM.

[0010] The utility model has the following beneficial effects: first, the insulation base plate is made of high-strength MC nylon, which is not easy to absorb moisture and has high mechanical strength. The number of voltage channels to be measured can be freely designed. Second, the terminal post is detachable, and can be replaced individually when damaged. Third, the service life is greatly increased after changing the material, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structure diagram of the utility model.

[0012] Figure 2 is Figure 1 is a structural schematic view of the insulating base plate (1) in the middle;

[0013] Figure 3 is Figure 1 is a structural schematic view of the terminal post (2) in the middle.

[0014] In the figure: 1, insulating base plate; 101, wire groove; 102, countersunk hole; 103, terminal post fixing hole; 2, terminal post; 201, sealing groove; 202, terminal thread; 3, sealing ring; 4, locking nut; 5, spring washer. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0016] Please refer to Figures 1-3 The present application provides a technical solution: a multi-channel voltage measurement terminal block applied to SF6 insulation, comprising an insulating base plate 1 and a plurality of terminal posts 2, the insulating base plate 1 is provided with equally divided countersunk holes 102, the terminal posts 2 are matched with the terminal post fixing holes 103 on the insulating base plate 1, and are fixedly connected with the locking nuts 4 and spring washers 5, the bottom of the terminal post 2 is milled flat, which is convenient for locking.

[0017] The sealing ring 3 is arranged between the terminal post 2 and the insulating base plate 1 and is arranged in the sealing groove 201 on the terminal post 2, and the upper and lower ends of the terminal post 2 are both provided with terminal threads 202, the sealing ring 3 is made of EPDM material, which is not easy to react with SF6 gas, thereby ensuring the sealing property of the equipment during long-term use.

[0018] The material of the insulating base plate 1 is high-strength MC nylon, which is not easy to absorb moisture and has high mechanical strength, and can be used in high-pressure SF6 insulation gas; the insulating base plate 1 is provided with wire grooves 101 equal in number to the terminal post fixing holes 103 and equally divided, which can be freely designed according to the number of measured voltage channels, and the terminal post is detachable, which can be replaced individually when the terminal post is damaged.

[0019] The material of the terminal post 2 and the locking nut 4 is 304 stainless steel, which is a tough and elastic material and is not easy to rust when exposed to air for a long time.

[0020] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-channel voltage measurement terminal block for use in SF6 insulation, comprising an insulating base plate (1) and more than two terminals (2), wherein the insulating base plate (1) is provided with evenly spaced countersunk holes (102), the terminals (2) engage with the terminal fixing holes (103) on the insulating base plate (1), and are fixedly connected to spring washers (5) by locking nuts (4), characterized in that: The sealing ring (3) is arranged between the terminal post (2) and the insulating base plate (1), and is arranged in the sealing groove (201) on the terminal post (2), and the upper and lower ends of the terminal post (2) are provided with terminal threads (202).

2. A multi-channel voltage measuring terminal block for SF6 insulation according to claim 1, characterized in that: The material of the insulating base plate (1) is high-strength MC nylon.

3. A multi-channel voltage measuring terminal block for SF6 insulation according to claim 1, characterized in that: The materials of the terminal post (2) and the locking nut (4) are both 304 stainless steel.

4. The multi-channel voltage measuring terminal strip for SF6 insulation according to claim 1, characterized in that: The insulating base plate (1) is provided with wire grooves (101) equal in number to the terminal post fixing holes (103) and evenly distributed.

5. A multi-channel voltage measuring terminal strip for SF6 insulation according to claim 1, characterized in that: The bottom of the terminal post (2) is milled flat, facilitating locking.

6. A multi-channel voltage measuring terminal block for SF6 insulation according to claim 1, characterized in that: The material of the sealing ring (3) is EPDM.

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