CN219716495U - Spring test wire resistant to 3kV voltage - Google Patents
Spring test wire resistant to 3kV voltage Download PDFInfo
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- CN219716495U CN219716495U CN202320772049.3U CN202320772049U CN219716495U CN 219716495 U CN219716495 U CN 219716495U CN 202320772049 U CN202320772049 U CN 202320772049U CN 219716495 U CN219716495 U CN 219716495U
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- insulating
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 7
- 239000004800 polyvinyl chloride Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 239000010985 leather Substances 0.000 abstract description 15
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 244000025254 Cannabis sativa Species 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model discloses a spring test wire resistant to 3kV voltage, which comprises a coil spring wire sheath, wherein a live wire and a ground wire are arranged in the coil spring wire sheath, the outer surface of the live wire is coated with a live wire insulating sheath, the outer surface of the ground wire is coated with a high voltage resistant insulating sheath, and an insulating filling layer is arranged among the live wire insulating sheath, the high voltage resistant insulating sheath and the coil spring wire sheath; compared with the prior art, the utility model adopts the high-voltage resistant insulating leather arranged on the surface of the ground wire and the common live wire insulating leather with smaller traditional thickness arranged on the surface of the live wire, thereby being capable of meeting the 3KV voltage resistant test suitable for the factory test of the motor, solving the frequent short circuit phenomenon of the existing low-voltage spiral spring wire during detection, guaranteeing the production safety, greatly reducing the whole thickness of the wire, reducing the manufacturing difficulty and greatly reducing the manufacturing cost of the wire.
Description
Technical Field
The utility model relates to the technical field of electrified test pieces, in particular to a spring test wire resistant to 3kV voltage.
Background
Most of the existing spiral spring wires in the current market are made of cables with the voltage below 1kV, and short circuit, fire and the like often occur between the wires in the use process of users. Particularly in automated test systems for motor manufacturers, the use of coil spring wires in large numbers is low voltage. Therefore, in the high voltage withstand test process, not only damage to the test power supply is caused, thereby affecting the throughput, but also safety production accidents and the like are possible.
In the prior art, although there is a customized high-voltage spiral spring wire, the spiral spring wire with the voltage is not easy to manufacture and has high production cost, for example, the customized high-voltage spiral spring wire is relatively good to manufacture during the locked-rotor and no-load test of a low-power motor, but the starting current is large for the high-power motor, and the current carrying capacity of a cable is required to be large, so that the wire is thick. The motor test wire is generally three live wires and one ground wire, so that the coil spring wire is quite difficult to manufacture by using the four wires together. The high voltage insulation is mostly insulating rubber, which clearly increases the weight and thickness of the wire. In the use process, the elasticity of the spring is lost after a long time due to the too heavy wire; the thicker the coil spring wire, the more difficult it is to make. Therefore, the utility model provides a spring test wire resistant to 3kV voltage.
Disclosure of Invention
The utility model aims to provide a spring test wire resistant to 3kV voltage, which is used for solving the problem that the existing low-voltage coil spring wire provided in the background art frequently generates short circuit during detection, so that the production efficiency is seriously affected, and the potential safety hazard is brought; the existing high-voltage spiral spring wire is not easy to manufacture and has high manufacturing cost.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a spring test wire of resistant 3kV voltage, includes coil spring wire crust, be equipped with live wire and ground wire in the coil spring wire crust, the surface cladding of live wire has the live wire insulating skin, the surface cladding of ground wire has the high voltage resistant insulating skin, still be equipped with insulating filling layer between live wire insulating skin, the high voltage resistant insulating skin and the coil spring wire crust.
As a preferable technical scheme of the utility model, the number of the live wires is three.
As a preferable technical scheme of the utility model, the live wire insulating cover is made of polyvinyl chloride.
As a preferable technical scheme of the utility model, the thickness of the live wire insulating skin is 0.5mm-1mm.
As a preferable technical scheme of the utility model, the high-voltage resistant insulating leather is made of high-temperature resistant silica gel.
As a preferable technical scheme of the utility model, the thickness of the high-voltage resistant insulating cover is 1.5mm.
As a preferable technical scheme of the utility model, the insulating filling layer is made of polypropylene silk ribbon and hemp rope.
As a preferable technical scheme of the utility model, the coil spring wire sheath is made of polyvinyl chloride.
Compared with the prior art, the utility model has the beneficial effects that:
according to the 3kV voltage resistant spring test wire, the high voltage resistant insulating leather is arranged on the surface of the ground wire, and the common fire wire insulating leather with smaller traditional thickness is arranged on the surface of the fire wire, so that the 3KV voltage resistant test suitable for a motor factory test can be met, the problem of frequent short circuit phenomenon of the existing low voltage coil spring wire during detection is solved, the production safety is ensured, the overall thickness of the wire is greatly reduced, the manufacturing difficulty is reduced, and meanwhile, the manufacturing cost of the wire is greatly reduced.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a front view of the present utility model;
in the figure: 1. a coil spring wire sheath; 2. a live wire insulating sheath; 3. a firing line; 4. a ground wire; 5. high voltage resistant insulating skin; 6. and an insulating filling layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In order to solve the problems that the current common low-voltage spiral spring wire causes three-phase to-ground short circuit under high-voltage impact and the high-cost and difficult to manufacture of the high-voltage spiral spring wire.
Referring to fig. 1-2, in this embodiment, a 3kV voltage resistant spring test wire is provided, including a coil spring wire sheath 1, the coil spring wire sheath 1 is made of polyvinyl chloride, a live wire 3 and a ground wire 4 are disposed in the coil spring wire sheath 1, the number of the live wires 3 is three, the outer surface of the live wire 3 is coated with a live wire insulation sheath 2, and the live wire insulation sheath 2 is made of polyvinyl chloride; the thickness of the fire wire insulating leather 2 is 0.5mm-1mm, the outer surface of the ground wire 4 is coated with a high-voltage resistant insulating leather 5, and the high-voltage resistant insulating leather 5 is made of high-temperature resistant silica gel; the thickness of the high voltage resistant insulating leather 5 is 1.5mm, an insulating filling layer 6 is further arranged among the fire wire insulating leather 2, the high voltage resistant insulating leather 5 and the coil spring wire sheath 1, and the insulating filling layer 6 is made of polypropylene silk ribbons and hemp ropes.
Because the motor is powered by three-phase alternating current, the used spiral spring wire consists of three live wires and one ground wire. In the motor production, in most cases, one production line produces motors with different power levels. Therefore, the current-carrying capacity of the three live wires 3 is selected according to one third of the rated current of the motor with the maximum power on the production line, and the materials of the three live wires 3 are not different from those of the common low-voltage wires.
The current-carrying capacity of the ground wire 4 of the coil spring wire is smaller than that of the live wire 3, so that the insulating material of the ground wire 4 is high-voltage-resistant insulating leather 5, which can be high-temperature silica gel or high-temperature-resistant rubber.
The spiral spring wire sheath 1 is manufactured according to a common spiral spring wire, and can be made of polyvinyl chloride.
The use of a high voltage resistant insulating sheath 5 for the ground wire for the coil spring wire in the present utility model is considered in terms of voltage definition.
The voltage depends on the potential of two points, the highest potential 2450V of the live wire in the high voltage resistance test process of the motor, and the potential of the ground wire is basically 0V. Therefore, the voltages of the three live wires 3 and the ground wire 4 are about 2450V, and the insulation cover of the common low-voltage spiral spring cable obviously does not accord with the standard regulation. The utility model provides a method for carrying out high voltage resistance on the insulating skin of the ground wire, so that the withstand voltage grade of the insulating skin of the ground wire can be ensured to meet the specified high voltage standard.
Whereas a normal low voltage coil spring test wire does not have a high voltage test, if a normal low voltage test wire is used for testing three live wire to ground wire shorts must occur. If all three live wires are made into high-voltage-resistant insulating leather, it is difficult to make the three live wires into a spiral spring wire, especially when a high-power motor is used. Therefore, the existing high-voltage-resistant coil spring wires are high in price and some of the existing high-voltage-resistant coil spring wires also need to be customized.
According to the 3kV voltage resistant spring test wire, the high voltage resistant insulating leather 5 is arranged on the surface of the ground wire 4, and the common live wire insulating leather 2 with smaller traditional thickness is arranged on the surface of the live wire 3, so that the 3KV voltage resistant test suitable for a motor factory test can be met, the problem of frequent short circuit phenomenon of the existing low-voltage coil spring wire during detection is solved, the production safety is ensured, the overall thickness of the wire is greatly reduced, the manufacturing difficulty is reduced, and meanwhile, the manufacturing cost of the wire is greatly reduced.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a spring test wire of resistant 3kV voltage, its characterized in that, includes coil spring wire crust (1), be equipped with live wire (3) and ground wire (4) in coil spring wire crust (1), the surface cladding of live wire (3) has live wire insulating skin (2), the surface cladding of ground wire (4) has high voltage resistant insulating skin (5), still be equipped with insulating filling layer (6) between live wire insulating skin (2), high voltage resistant insulating skin (5) and coil spring wire crust (1).
2. A spring test wire resistant to 3kV voltage according to claim 1, characterized in that the number of live wires (3) is three.
3. A spring test wire resistant to 3kV voltage according to claim 2, characterized in that the live insulation (2) is made of polyvinyl chloride.
4. A spring test wire resistant to 3kV voltage according to claim 2, characterized in that the thickness of the live insulation (2) is 0.5mm-1mm.
5. The 3kV voltage resistant spring test wire according to claim 1, wherein the high voltage resistant insulating sheath (5) is made of high temperature resistant silica gel.
6. A spring test wire resistant to 3kV voltage according to claim 5, characterized in that the thickness of the high voltage resistant insulating sheath (5) is 1.5mm.
7. A spring test wire resistant to 3kV voltage according to claim 1, characterized in that the insulating filling layer (6) is made of polypropylene ribbons and twines.
8. A spring test wire resistant to 3kV voltage according to claim 1, characterized in that the spiral spring wire sheath (1) is made of polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320772049.3U CN219716495U (en) | 2023-04-10 | 2023-04-10 | Spring test wire resistant to 3kV voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320772049.3U CN219716495U (en) | 2023-04-10 | 2023-04-10 | Spring test wire resistant to 3kV voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219716495U true CN219716495U (en) | 2023-09-19 |
Family
ID=88002991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320772049.3U Active CN219716495U (en) | 2023-04-10 | 2023-04-10 | Spring test wire resistant to 3kV voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219716495U (en) |
-
2023
- 2023-04-10 CN CN202320772049.3U patent/CN219716495U/en active Active
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