Insulation positioning plate

Abstract

The insulation positioning plate comprises a disc body made of insulation materials, a sleeve hole is formed in the center of the disc body, a plurality of through holes are formed in the disc body, and any ray emitted from the circle center of the sleeve hole to the edge of the disc body at least passes through one through hole. Under the condition that an insulating plate is not added, through holes for blocking a power line of a high-voltage electric field are added, so that the insulating property of the insulating positioning plate is improved; and meanwhile, the insulating positioning plate is also provided with a detachable mounting assembly, so that the insulating positioning plate can be matched with different tested parts, and the use cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to high voltage test technical field, more particularly to the improvement of insulating positioning plate structure. BACKGROUND

[0002] When testing the electrical performance of conductors under high voltage and high current, an insulating positioning plate is needed to position the conductor in the testing device, and then high voltage and high current are applied for testing.

[0003] In order to ensure the insulation performance, the insulating positioning plate needs to have a certain size, and higher current and voltage are applied. To improve the insulation performance of the insulating positioning plate, the creepage distance of the insulating positioning plate needs to be lengthened, and the insulating positioning plate with a larger cross-sectional area needs to be replaced. Lightweight and high-performance insulating materials are relatively expensive, and the space inside the insulating shell of the testing device is fixed, which requires the replacement of the insulating shell of the testing device. The above factors result in high testing costs.

[0004] Therefore, how to increase the insulation performance of the insulating positioning plate without increasing the cross-sectional area is a technical problem that needs to be solved by those skilled in the art. SUMMARY

[0005] To solve the above technical problems, the utility model provides an insulating positioning plate with better insulation performance under the same cross-sectional area.

[0006] The technical scheme of the utility model is as follows: an insulating positioning plate, comprising a disc body made of insulating material, a sleeve hole is arranged at the center of the disc body, a plurality of through holes are arranged on the disc body, and the distribution of the through holes meets the following condition: any ray emitted from the center of the sleeve hole to the edge of the disc body passes through at least one through hole.

[0007] Preferably, the disc body is provided with a plurality of groups of through holes from inside to outside, the centers of the through holes in the same group are uniformly distributed on the same circle, the diameters of the through holes in each group increase successively from inside to outside, and the diameter of the outer through hole is greater than the minimum distance between adjacent inner through holes.

[0008] Preferably, the material of the disc body is polytetrafluoroethylene or polyether ether ketone.

[0009] Preferably, the disc body comprises a detachable mounting assembly, and the sleeve hole is arranged on the mounting assembly.

[0010] Preferably, the mounting assembly comprises a mounting plate, a sleeve hole is arranged at the center of the mounting plate, and the mounting plate is connected to the disc body through threads.

[0011] Preferably, a plurality of fixing holes are arranged on the disc body.

[0012] The utility model discloses a beneficial effect is: under the condition of not increasing cross section area, through the through -hole of increasing the high -voltage electric field line of blocking, not forming high -voltage conductor to the direct electric line of ground potential, under the condition of not increasing the creepage distance of insulating piece, increase the insulating performance of insulating positioning plate.

[0013] Meanwhile still be equipped with detachable installation component, make insulating positioning plate can match different test's component, greatly reduced use cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the utility model,

[0015] Figure 2 It is the structure schematic diagram of the utility model embodiment 2,

[0016] Figure 3 It is the structure schematic diagram of the utility model's use state diagram,

[0017] In the drawing, 1 is disc body, 11 is fixed hole, 2 is sleeve joint hole, 3 is through -hole, 4 is mounting plate, 5 is the conductor of being tested, 6 is testing device, 61 is insulating shell. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, instead of all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of the utility model protection.

[0019] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "internal", "external", "front", "back" etc. are based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate with a particular orientation, therefore can not be understood as the limitation of the utility model.

[0020] Embodiment 1

[0021] The insulating positioning plate comprises a disc body 1 made of insulating material, a sleeve joint hole 2 arranged at the center of the disc body 1, and a plurality of through holes 3 arranged on the disc body 1, wherein in the embodiment, the disc body 1 is provided with three groups of through holes 3 from inside to outside, the centers of the through holes 3 in the same group are uniformly distributed on the same circle, the diameters of the through holes 3 in each group are sequentially increased from inside to outside, and the diameter of the outer through hole 3 is greater than the minimum distance between the adjacent inner through holes 3, so that any ray emitted from the center of the sleeve joint hole 2 to the edge of the disc body passes through at least one through hole (the ray is equivalent to the electric field line emitted from the device under test). The skilled in the art can also arrange the through holes irregularly to achieve the above effect. Considering that the insulating positioning plate is a personalized customized product in actual use, regular arrangement is adopted in the embodiment, which is easy to produce and process and reduces the cost.

[0022] In the embodiment, the material of the disc body 1 is polytetrafluoroethylene. The skilled in the art can also select other insulating materials for preparation.

[0023] In the embodiment, the disc body 1 is provided with a plurality of fixing holes 11 for cooperating with bolts on the testing device 6 to fix the insulating positioning plate. The fixing clamping groove can also be arranged on the side surface of the disc body 1 to realize clamping fixation. The above is the prior art, and the specific structure and connection method will not be described again.

[0024] Referring to Figure 3 In the use state, the conductor under test 5 is positioned in the sleeve joint hole 2, and then energized. Since the electric field line propagates along a straight line, the through hole 3 for blocking the high-voltage electric field line is increased, so that the direct power line from the conductor 5 to the ground potential is not formed. In this way, the insulation performance of the insulating positioning plate is improved without increasing the creepage distance of the insulating part, and the insulating shell 61 does not need to be replaced, thereby reducing the cost.

[0025] Embodiment 2

[0026] In the embodiment, the disc body 1 comprises a detachable mounting assembly, and the sleeve joint hole 2 is arranged on the mounting assembly. The mounting assembly comprises a mounting plate 4, and the mounting plate 4 is provided with a sleeve joint hole 3 at the center. The mounting plate 4 is connected with the disc body 1 through threads.

[0027] In the embodiment, the detachable mounting assembly is arranged, so that the sleeve joint hole 2 of the insulating positioning plate can match different shapes of testing components, and the entire replacement is not needed, thereby further greatly reducing the cost.

[0028] The utility model is not limited to the above-mentioned embodiment, on the basis of the technical scheme disclosed in the utility model, the skilled in the art can make some substitutions and deformation to some technical features without creative labor according to the disclosed technical content, and these substitutions and deformation are all within the protection scope of the utility model.

Claims

1. An insulating positioning plate, comprising a disc made of insulating material, characterized in that, The disk body has a socket hole at its center and several through holes on its surface. The distribution of the through holes satisfies the following condition: any ray emitted from the center of the socket hole toward the edge of the disk body passes through at least one through hole.

2. The insulating positioning plate according to claim 1, characterized in that, The disk body has several sets of through holes from the inside to the outside. The centers of the through holes in the same set are evenly distributed on the same circle. The diameter of each set of through holes increases from the inside to the outside. The diameter of the outer through hole is greater than the minimum distance between adjacent inner through holes.

3. The insulating positioning plate according to claim 1, characterized in that, The disk body is made of polytetrafluoroethylene or polyetheretherketone.

4. The insulating positioning plate according to claim 1, characterized in that, The disk body includes a detachable mounting component, and the socket is provided on the mounting component.

5. The insulating positioning plate according to claim 4, characterized in that, The mounting assembly includes a mounting plate with a central socket hole, and the mounting plate is connected to the disc via threads.

6. The insulating positioning plate according to any one of claims 1 to 5, characterized in that, The disc body is provided with several fixing holes.

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