CN212905237U

CN212905237U - Electric strength testing arrangement

Info

Publication number: CN212905237U
Application number: CN202021472246.6U
Authority: CN
Inventors: 艾中心; 罗明军; 吴佳乐; 江嘉豪
Original assignee: Shenzhen Huaxia Quasi Testing Technology Co ltd
Current assignee: Shenzhen Huaxia Quasi Testing Technology Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-04-06
Anticipated expiration: 2030-07-23

Abstract

The utility model relates to the field of testing devices, and provides an electric strength testing device, which comprises an integrally formed bracket, a testing component and a bearing platform arranged below the bracket and the testing component; the testing assembly comprises an upper metal copper bar, a lower metal copper bar and a first testing bottom plate; the lower metal copper bar is positioned below the upper metal copper bar and is matched with the upper metal copper bar for use, and external threads are arranged on the outer surface of the lower metal copper bar at the lower end; the first testing bottom plate is located below the lower metal copper rod and is in threaded connection with the lower metal copper rod. The utility model discloses a with second test bottom plate with metal bar copper spiro union down, can the rotating down the metal bar copper with adjust and go up the distance between the metal bar copper, easy operation, it is efficient.

Description

Electric strength testing arrangement

Technical Field

The utility model relates to an insulating material testing arrangement field especially relates to an electric strength testing arrangement.

Background

In order to verify that electrical and electronic equipment meets the requirements for protection against electric shock and to prevent users from electric shock hazards, the insulation system materials of the equipment must be tested for electric shock resistance strength, and the insulation of the electronic products must be capable of withstanding high voltage tests to ensure that the insulation will not break down when subjected to high voltage pulses in the distribution system. In the prior art, a voltage withstand test is generally carried out by placing a thin insulating material to be tested between an upper metal copper rod and a lower metal copper rod, and testing the voltage of the thin insulating material through connecting terminals respectively connected with the upper metal copper rod and the lower metal copper rod, but the distance between the upper metal copper rod and the lower metal copper rod is not easy to accurately regulate and control, the operation process is time-consuming and labor-consuming, and the work efficiency is lower. In addition, two groups of upper metal copper rods, namely 100g and 50g, are generally arranged in the conventional electric strength testing device, and because no device is fixed, the upper metal copper rods can fall out with a high probability in the use or carrying process, so that the upper metal copper rods can fall to the ground to cause deformation and finally cannot be used.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the provided electric strength testing device can simply and accurately adjust the testing distance and is convenient to use.

To achieve the purpose, the utility model adopts the following technical proposal: a testing device for the dielectric strength of an insulating material comprises a bearing table;

the bracket is arranged on the bearing table;

the test assembly is arranged on the bearing table;

the test assembly includes:

the first testing bottom plate is arranged on the bearing table, a threaded hole corresponding to an accommodating groove preset on the bearing table is formed in the first testing bottom plate, and the opening end of the accommodating groove is larger than or equal to the threaded hole;

the lower metal copper bar is in threaded assembly with the threaded hole;

one end of the upper metal copper bar is assembled with the bracket, and the other end of the upper metal copper bar is arranged opposite to the lower metal copper bar;

the distance between the upper metal copper bar and the lower metal copper bar is adjusted by adjusting the screwing degree of the lower metal copper bar and the threaded hole.

Preferably, the support is including fixing second test bottom plate, one end on the plummer are connected on the second test bottom plate and the hang plate that the slope set up and with plummer parallel arrangement's fixed plate, fixed plate one end is connected on the hang plate, the other end is the free end, fixed plate free end be provided with fixed plate vertically sleeve, be equipped with the internal thread in the sleeve, go up be equipped with on the metal bar copper surface with the external screw thread that telescopic internal thread hole corresponds.

Preferably, the bracket comprises a second testing bottom plate fixed on the bearing table, an inclined plate with one end connected to the second testing bottom plate and arranged obliquely, and two fixing plates arranged on the bearing table in parallel up and down; one end of each of the two fixing plates is connected to the inclined plate, and the other end of each fixing plate is a free end.

Preferably, two groups of internal thread holes are respectively arranged at the corresponding positions of the upper part and the lower part of the two fixing plates; and two groups of external threads corresponding to the internal thread holes of the fixing plate are arranged on the outer surface of the upper metal copper bar.

Preferably, the second testing base plate, the inclined plate and the two fixing plates are of an integrally formed structure made of pure copper materials.

Preferably, the first test substrate and the second test substrate are respectively provided with a connection terminal for a test voltage.

Preferably, the bearing table is made of bakelite.

Preferably, the opposite end surfaces of the upper metal copper rod and the lower metal copper rod are provided with circular arc chamfers with the radius of 0.5 mm.

Preferably, the bearing table is provided with a groove with the same size as the upper metal copper rod.

Preferably, the fixing plate is provided with a buckle or a clamp for fixing the upper metal copper bar.

The utility model discloses a with first test bottom plate and metal bar copper spiro union down, through rotating metal bar copper under in order to adjust distance between metal bar copper and the last metal bar copper, easy operation, it is efficient.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third embodiment of the present invention;

fig. 4 is a cross-sectional view of the first testing substrate and the carrier.

Detailed Description

In order to further understand and appreciate the structural features and advantages of the present invention, preferred embodiments and the accompanying drawings are described in detail as follows:

example one

Referring to fig. 1 and 4, a testing device for dielectric strength of an insulating material comprises an integrally formed bracket 1, a testing component 2 and a bearing table 4 arranged below the bracket 1 and the testing component 2;

the testing assembly 2 comprises a first testing bottom plate 23 arranged on the bearing table 4, a threaded hole 231 corresponding to an accommodating groove 41 preset on the bearing table 4 is formed in the first testing bottom plate 23, and the opening end of the accommodating groove 41 is larger than or equal to the threaded hole 231;

a lower metal copper bar 22 screw-fitted with the screw hole 231;

an upper metal copper bar 21 having one end assembled with the bracket 1 and the other end arranged opposite to the lower metal copper bar 22;

the distance between the upper copper bar 21 and the lower copper bar 22 is adjusted by adjusting the screwing degree of the lower copper bar 22 and the threaded hole 231. The accommodating groove 41 of the bearing table 4 enables the lower copper bar 22 to smoothly ascend and descend. During testing, the thin-layer material to be tested is placed between the upper metal copper rod 21 and the lower metal copper rod 22, and the sample to be tested can be well fixed and flexibly adjusted according to the thickness of the sample to be tested only by rotating the lower metal copper rod 22 to tightly press the sample, so that the operation is simple, convenient and labor-saving.

Example two

Referring to fig. 2, for another embodiment of the present invention, the support 1 includes a second testing bottom plate 11 fixed on the bearing platform, one end of the second testing bottom plate is connected to the second testing bottom plate 11, and the inclined plate 12 is inclined and the fixing plate 13 is parallel to the bearing platform, one end of the fixing plate 13 is connected to the inclined plate 12, the other end is a free end, the free end of the fixing plate 13 is fixed to a sleeve 14 perpendicular to the fixing plate 13, an internal thread (not shown) is provided in the sleeve 14, and an external thread (not shown) corresponding to the internal thread hole of the sleeve 14 is provided on the outer surface of the upper metal copper rod 21.

When the distance to be measured needs to be adjusted greatly, the upper metal rod 21 can be rotated, and the sleeve 14 with the internal threads can keep moving up and down vertically on the sleeve 21, so that the accuracy of operation can be ensured.

EXAMPLE III

Referring to fig. 3, in another embodiment of the present invention, the bracket 1 includes a second testing bottom plate 11 fixed on the carrier, an inclined plate 12 having one end connected to the second testing bottom plate 11 and being arranged obliquely, and two fixing plates 13 respectively arranged up and down in parallel with the carrier 4; one end of the two fixed plates 13 is connected to the inclined plate 12, and the other end is a free end. Two groups of internal thread holes (not shown) are respectively arranged at the corresponding positions of the upper part and the lower part of the two fixing plates 13; two sets of external threads (not shown) corresponding to the internal thread holes are arranged on the outer surface of the upper metal copper bar 21.

When the distance to be measured needs to be adjusted greatly, the upper metal rod 21 can be kept to move vertically up and down by rotating the upper metal rod 21 and the two fixing plates 13 which are parallel to each other, so that the accuracy of operation can be further ensured.

The utility model discloses in, second test bottom plate 11, hang plate 12 and fixed plate 13 are the one-piece type structure of adopting pure copper material to make.

In some embodiments, the first and second

test base plates

23, 11 are each provided with a connection terminal 3 for a test voltage.

The terminals 11 on the first and

second test boards

23 and 11 are connected to the high voltage generator. The high voltage generator outputs high voltage to be applied to two sides of a tested sample through a connecting terminal 3 of a test voltage; after the predetermined test time is completed, the test sample is inspected according to the requirements of the regulations.

In this embodiment, the bearing table 4 is made of bakelite, so that the bottom quality is improved to improve the stability while the insulation effect is achieved. And the opposite end surfaces of the upper metal copper bar 21 and the lower metal copper bar 22 are provided with circular arc chamfers with the radius of 0.5 mm. The upper metal copper bar 21 is connected with the support 1 through threads, so that the tested sample can be well fixed and can be flexibly adjusted according to the tested thickness.

In some embodiments, the carrier 4 is provided with a groove of a size corresponding to the upper metal copper bar 21. In other embodiments, the fixing plate 13 is provided with a clip or clamp for fixing the upper metal copper bar 21. In ordinary depositing or handling, the recess will go up metal bar copper 21 and accomodate, perhaps fixed plate 13 will go up metal bar copper 21 and fix, goes up metal bar copper 21 and just can not have the risk that falls out.

The parts not related to in the utility model are all the same with the prior art or can be realized by adopting the prior art.

Finally, it should be noted that: in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal", etc. indicate that the directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and understanding of the technical solutions of the present invention, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an electric strength testing arrangement which characterized in that: the method comprises the following steps:

a bearing table;

the bracket is arranged on the bearing table;

the test assembly is arranged on the bearing table;

the test assembly includes:

the lower metal copper bar is in threaded assembly with the threaded hole;

2. The electrical strength testing device of claim 1, wherein: the bracket includes:

the second test bottom plate is fixed on the bearing table;

one end of the inclined plate is connected to the second testing bottom plate and is obliquely arranged; and

with plummer parallel arrangement's fixed plate, fixed plate one end is connected on the hang plate, and the other end is the free end, fixed plate free end be provided with fixed plate vertically sleeve, the sleeve inner wall is equipped with the internal thread, go up be equipped with on the metal bar copper surface with the external screw thread that telescopic internal thread hole corresponds.

3. The electrical strength testing device of claim 1, wherein: the bracket comprises a second testing bottom plate fixed on the bearing table, an inclined plate with one end connected to the second testing bottom plate and arranged obliquely, and two fixing plates arranged on the bearing table in parallel up and down respectively; one end of each of the two fixing plates is connected to the inclined plate, and the other end of each fixing plate is a free end.

4. The electrical strength testing device of claim 3, wherein: two groups of internal thread holes are respectively arranged at the corresponding positions of the upper part and the lower part of the two fixing plates; and two groups of external threads corresponding to the internal thread holes of the fixing plate are arranged on the outer surface of the upper metal copper bar.

5. The electrical strength testing device of any one of claims 2-3, wherein: the second testing bottom plate, the inclined plate and the fixing plate are of an integrally formed structure made of pure copper materials.

6. The electrical strength testing device of any one of claims 2-3, wherein: and the first test bottom plate and the second test bottom plate are respectively provided with a wiring terminal for testing voltage.

7. The electrical strength testing device of any one of claims 1-4, wherein: the bearing table is made of bakelite.

8. The electrical strength testing device of any one of claims 1-4, wherein: and the opposite end surfaces of the upper metal copper bar and the lower metal copper bar are provided with arc chamfers with the radius of 0.5 mm.

9. The electrical strength testing device of any one of claims 1-4, wherein: the plummer be equipped with go up the recess that metal bar copper size is unanimous.

10. The electrical strength testing device of any one of claims 2-4, wherein: and a buckle or a clamp for fixing the upper metal copper bar is arranged on the fixing plate.