CN109633314B - Simple structure and low-cost cylindrical detection stick - Google Patents
Simple structure and low-cost cylindrical detection stick Download PDFInfo
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- CN109633314B CN109633314B CN201811549391.7A CN201811549391A CN109633314B CN 109633314 B CN109633314 B CN 109633314B CN 201811549391 A CN201811549391 A CN 201811549391A CN 109633314 B CN109633314 B CN 109633314B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention relates to the technical field of high-voltage detection, in particular to a cylindrical detection rod with a simple structure and low cost. A first capacitor, a first resistor, a second capacitor, a second resistor and a separation plate are arranged in the detection rod body, the first capacitor is connected with the first resistor in parallel, the separation plate is arranged between the first capacitor and the first resistor, the outer side wall of the first capacitor and the outer side wall of the first resistor are respectively attached to the two side walls of the separation plate, the thickness of the separation plate is 2.5-3mm, so that the capacitor and the resistor can not touch the inner surface of the side wall of the detection rod body, the insulation performance is prevented from weakening, the detection rod body is also internally provided with insulation glue which wraps the capacitor, the resistor and the isolation plate to be fixed in the detection rod body, the insulating glue has no bubble, thereby improving the measurement accuracy of the cylindrical detection rod, and the structure is simpler, the used material is convenient to obtain and has low cost, therefore, the cylindrical detection rod provided by the invention has the characteristics of simple structure, low cost and high measurement precision.
Description
Technical Field
The invention relates to the technical field of high-voltage detection, in particular to a cylindrical detection rod with a simple structure and low cost.
Background
Most of the existing high-voltage detection devices are special devices, the cost is high, and the cost reaches ten thousand yuan. Although some high-voltage detection devices with lower cost exist, the test precision of the high-voltage detection devices cannot meet high requirements, and the high-voltage detection devices are complex in structure. Therefore, there is a need for a cylindrical probe rod with a simple structure and low cost.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a cylindrical probe rod having a simple structure and low cost is provided.
In order to solve the technical problems, the invention adopts the technical scheme that:
a cylindrical detection rod with a simple structure and low cost comprises a detection rod body, wherein the detection rod body is of a cylindrical structure with a hollow interior, a first capacitor, a first resistor, a second capacitor, a second resistor and a separation plate are arranged in the detection rod body, the first capacitor and the first resistor are connected in parallel, one end of the first capacitor and the first resistor, which are connected in parallel, is electrically connected with a signal wire of a detection terminal arranged at one end of the detection rod body, and one end of the second capacitor and one end of the second resistor are respectively electrically connected with the signal wire of the detection terminal; the outer surface of the detection rod body is coated with a copper layer, and the copper layer is electrically connected with the shell of the detection terminal through a connecting lead and serves as a ground wire; the other end of the second capacitor and the other end of the second resistor are electrically connected with the ground wire respectively;
the isolation plate is arranged between the first capacitor and the first resistor, the outer side wall of the first capacitor and the outer side wall of the first resistor are respectively attached to the two side walls of the isolation plate, and the thickness of the isolation plate is 2.5-3 mm;
the detection rod is characterized in that an insulating adhesive is further arranged in the detection rod body, and the insulating adhesive wraps the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate so that the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate are fixed in the detection rod body.
The invention has the beneficial effects that:
the cylindrical detection rod with simple structure and low cost is characterized in that a first capacitor, a first resistor, a second capacitor, a second resistor and a separation plate are arranged in a detection rod body, the first capacitor is connected with the first resistor in parallel, the separation plate is arranged between the first capacitor and the first resistor, the outer side wall of the first capacitor and the outer side wall of the first resistor are respectively attached to the two side walls of the separation plate, and the thickness of the separation plate is 2.5-3 mm; the cylindrical detection rod is characterized in that an insulating adhesive is further arranged in the detection rod body, the insulating adhesive wraps the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate so that the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate are fixed in the detection rod body, no air bubble exists in the insulating adhesive in the detection rod body, the electronic component is prevented from being influenced by the existence of the air bubble in the insulating adhesive, and the measurement precision of the cylindrical detection rod is further improved Low cost and high measurement accuracy.
Drawings
FIG. 1 is a cross-sectional view of a simple and low cost cylindrical probe rod of the present invention;
description of reference numerals:
1. a probe body; 2. a first capacitor; 3. a first resistor; 4. a separator plate; 5. insulating glue; 6. a second capacitor; 7. a second resistor; 8. a detection terminal; 9. a copper layer.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: the isolation plate is arranged between the first capacitor and the first resistor, the outer side wall of the first capacitor and the outer side wall of the first resistor are respectively attached to the two side walls of the isolation plate, and the thickness of the isolation plate is 2.5-3 mm; the detection rod is characterized in that an insulating glue is further arranged in the detection rod body, and the insulating glue wraps the capacitor, the resistor and the isolation plate so that the capacitor, the resistor and the isolation plate are fixed in the detection rod body.
Referring to fig. 1, the cylindrical detection rod with a simple structure and low cost provided by the present invention includes a detection rod body, the detection rod body is a cylindrical structure with a hollow interior, a first capacitor, a first resistor, a second capacitor, a second resistor and a separation plate are disposed in the detection rod body, the first capacitor and the first resistor are connected in parallel, one end of the first capacitor and the first resistor, which are connected in parallel, is electrically connected to a signal line of a detection terminal disposed at one end of the detection rod body, and one end of the second capacitor and one end of the second resistor are respectively electrically connected to the signal line of the detection terminal; the outer surface of the detection rod body is coated with a copper layer, and the copper layer is electrically connected with the shell of the detection terminal through a connecting lead and serves as a ground wire; the other end of the second capacitor and the other end of the second resistor are electrically connected with the ground wire respectively;
the isolation plate is arranged between the first capacitor and the first resistor, the outer side wall of the first capacitor and the outer side wall of the first resistor are respectively attached to the two side walls of the isolation plate, and the thickness of the isolation plate is 2.5-3 mm;
the detection rod is characterized in that an insulating adhesive is further arranged in the detection rod body, and the insulating adhesive wraps the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate so that the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate are fixed in the detection rod body.
From the above description, the beneficial effects of the present invention are:
the cylindrical detection rod with simple structure and low cost is characterized in that a first capacitor, a first resistor, a second capacitor, a second resistor and a separation plate are arranged in a detection rod body, the first capacitor is connected with the first resistor in parallel, the separation plate is arranged between the first capacitor and the first resistor, the outer side wall of the first capacitor and the outer side wall of the first resistor are respectively attached to the two side walls of the separation plate, and the thickness of the separation plate is 2.5-3 mm; the cylindrical detection rod is characterized in that an insulating adhesive is further arranged in the detection rod body, the insulating adhesive wraps the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate so that the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate are fixed in the detection rod body, no air bubble exists in the insulating adhesive in the detection rod body, the electronic component is prevented from being influenced by the existence of the air bubble in the insulating adhesive, and the measurement precision of the cylindrical detection rod is further improved Low cost and high measurement accuracy.
Further, the first resistor is a gaugeThe grid is 100M omega/10W, the first capacitor is formed by sequentially connecting four sub-capacitors in series, the specification of the sub-capacitors is 10pF/30KV, the specification of the second resistor is 10.6K omega/10W, and the specification of the second capacitor is 22nF/100VP-P。
According to the above description, the matching circuit of the probe body is formed by the above structure, and the electronic components are commonly used, so that the probe body is convenient to obtain and low in cost.
Furthermore, an interval is arranged between the first capacitor and the inner side wall of the detection rod body, and an interval is arranged between the first resistor and the inner side wall of the detection rod body.
Furthermore, the interval between the first capacitor and the inner side wall of the detection rod body is at least 4-5mm, and the interval between the first resistor and the inner side wall of the detection rod body is at least 4-5 mm.
As can be seen from the above description, if the isolation plate is too thick, the non-inductive high-voltage resistor will touch the inner surface of the sidewall of the probe rod body, so that the insulation performance will be reduced. The interval between the first capacitor and the inner surface of the side wall of the detection rod body is at least 4-5mm, and the interval between the first resistor and the inner surface of the side wall of the detection rod body is at least 4-5mm, so that the insulating glue enters the interval when the insulating glue is poured, and the insulating effect is improved.
Further, the isolation plate is a pure tetrafluoro plate, the isolation plate is rectangular, the length of the isolation plate is 110-120mm, and the width of the isolation plate is 35 mm.
As can be seen from the above description, the isolation plate is a high-voltage body RC plate, and the isolation effect is excellent.
Furthermore, the detection rod body is made of POM materials.
Further, the thickness of the side wall of the detection rod body is at least 5 mm.
As can be seen from the above description, the thickness of the side wall of the probe rod body is at least 5mm, so that insulation is ensured, and safety is improved.
Furthermore, the insulating glue adopts an HZ-703 adhesive.
From the above description, HZ-703 adhesive, surface cure time: 5 to 30 (minutes)) And tensile strength: greater than 12kg/cm2Temperature resistance: -60 to 1500 ℃, elongation: 250%, shear strength: 11kg/cm2Volume resistance: 2.5X 1013. omega./cm, dielectric constant: 3.4(1MHX), breakdown voltage: 16 kv/mm. The high-voltage insulation device is suitable for high-voltage insulation and ensures the insulation effect.
Referring to fig. 1, a first embodiment of the present invention is:
the invention provides a cylindrical detection rod with simple structure and low cost, which comprises a detection rod body 1, wherein the detection rod body is of a cylindrical structure with a hollow interior, a first capacitor 2, a first resistor 3, a second capacitor 6, a second resistor 7 and a separation plate 4 are arranged in the detection rod body, the first capacitor 2 and the first resistor 3 are connected in parallel, one end of the first capacitor 2, which is connected in parallel with the first resistor 3, is electrically connected with a signal wire of a detection terminal 8 arranged at one end of the detection rod body, and one end of the second capacitor 6 and one end of the second resistor 7 are respectively electrically connected with the signal wire of the detection terminal 8; the outer surface of the detection rod body is coated with a copper layer 9, and the copper layer 9 is electrically connected with the shell of the detection terminal through a connecting lead and serves as a ground wire; the other end of the second capacitor 6 and the other end of the second resistor 7 are respectively electrically connected with the ground wire;
the isolation plate 4 is arranged between the first capacitor 2 and the first resistor 3, the outer side wall of the first capacitor and the outer side wall of the first resistor are respectively attached to the two side walls of the isolation plate, and the thickness of the isolation plate is 2.5-3mm, preferably 2.5 mm;
still be equipped with insulating cement 5 in the probe stick body, insulating cement 5 parcel first electric capacity 2, first resistance 3, second electric capacity 6, second resistance 7 and division board 4 so that first electric capacity, first resistance, second electric capacity, second resistance and division board are fixed in the probe stick body.
The specification of the first resistor is 100M omega/10W, the first capacitor is formed by sequentially connecting four sub-capacitors in series, the specification of the sub-capacitors is 10pF/30KV, the specification of the second resistor is 10.6K omega/10W, and the specification of the second capacitor is 22nF/100VP-P. The matching circuit and the electronic element of the probe body are formed by the structureThe devices are common, are convenient to obtain and have low cost.
The first capacitor is spaced from the inner side wall of the detection rod body, and the first resistor is spaced from the inner side wall of the detection rod body. The interval between the first capacitor and the inner side wall of the detection rod body is at least 4-5mm, and the interval between the first resistor and the inner side wall of the detection rod body is at least 4-5 mm.
If the isolation plate is too thick, the non-inductive high-voltage resistor can touch the inner surface of the side wall of the detection rod body, so that the insulating property is weakened. The interval between the first capacitor and the inner surface of the side wall of the detection rod body is at least 4-5mm, preferably 4.5mm, the interval between the first resistor and the inner surface of the side wall of the detection rod body is at least 4-5mm, preferably 4.5mm, so that the insulating glue enters the interval when the insulating glue is poured, and the insulating effect is improved.
The isolation plate is a pure tetrafluoro plate, the isolation plate is rectangular, the length of the isolation plate is 110-120mm, preferably 115mm, and the width of the isolation plate is 35 mm. The isolation plate is a high-voltage body RC plate, and the isolation effect is excellent.
The detection rod body is made of POM materials. The side wall thickness of the detection rod body is at least 5mm, insulation is ensured, and safety is improved.
The insulating glue adopts HZ-703 adhesive. The surface curing time is as follows: 5-30 (min), tensile strength: greater than 12kg/cm2Temperature resistance: -60 to 1500 ℃, elongation: 250%, shear strength: 11kg/cm2Volume resistance: 2.5X 1013. omega./cm, dielectric constant: 3.4(1MHX), breakdown voltage: 16 kv/mm. The high-voltage insulation device is suitable for high-voltage insulation and ensures the insulation effect.
In summary, the cylindrical detection rod with simple structure and low cost provided by the invention is characterized in that a first capacitor, a first resistor, a second capacitor, a second resistor and a separation plate are arranged in a detection rod body, the first capacitor and the first resistor are connected in parallel, the separation plate is arranged between the first capacitor and the first resistor, the outer side wall of the first capacitor and the outer side wall of the first resistor are respectively attached to the two side walls of the separation plate, and the thickness of the separation plate is 2.5-3 mm; the cylindrical detection rod is characterized in that an insulating adhesive is further arranged in the detection rod body, the insulating adhesive wraps the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate so that the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate are fixed in the detection rod body, no air bubble exists in the insulating adhesive in the detection rod body, the electronic component is prevented from being influenced by the existence of the air bubble in the insulating adhesive, and the measurement precision of the cylindrical detection rod is further improved Low cost and high measurement accuracy.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. The cylindrical detection rod is characterized by comprising a detection rod body, wherein the detection rod body is of a cylindrical structure with a hollow interior, a first capacitor, a first resistor, a second capacitor, a second resistor and a separation plate are arranged in the detection rod body, the first capacitor and the first resistor are connected in parallel, one end of the first capacitor and one end of the first resistor, which are connected in parallel, are electrically connected with a signal wire of a detection terminal arranged at one end of the detection rod body, and one end of the second capacitor and one end of the second resistor are respectively electrically connected with the signal wire of the detection terminal; the outer surface of the detection rod body is coated with a copper layer, and the copper layer is electrically connected with the shell of the detection terminal through a connecting lead and serves as a ground wire; the other end of the second capacitor and the other end of the second resistor are electrically connected with the ground wire respectively;
the isolation plate is arranged between the first capacitor and the first resistor, the outer side wall of the first capacitor and the outer side wall of the first resistor are respectively attached to the two side walls of the isolation plate, and the thickness of the isolation plate is 2.5-3 mm;
the detection rod is characterized in that an insulating adhesive is further arranged in the detection rod body, and the insulating adhesive wraps the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate so that the first capacitor, the first resistor, the second capacitor, the second resistor and the isolation plate are fixed in the detection rod body.
2. The cylindrical probe rod with simple structure and low cost as claimed in claim 1, wherein the first resistor has a specification of 100M Ω/10W, the first capacitor is composed of four sub-capacitors connected in series, the sub-capacitors have a specification of 10pF/30KV, the second resistor has a specification of 10.6K Ω/10W, and the second capacitor has a specification of 22 nF/100V.
3. The cylindrical probe rod with simple structure and low cost as claimed in claim 1, wherein the first capacitor is spaced from the inner sidewall of the probe rod body, and the first resistor is spaced from the inner sidewall of the probe rod body.
4. The simple structure and low cost cylindrical probe rod of claim 3, wherein the first capacitor is spaced from the inner sidewall of the probe rod body by at least 4mm, and the first resistor is spaced from the inner sidewall of the probe rod body by at least 4 mm.
5. The simple-structured and low-cost cylindrical probe rod as claimed in claim 1, wherein the isolation plate is made of pure PTFE, the isolation plate is rectangular, the length of the isolation plate is 110 mm and 120mm, and the width of the isolation plate is 35 mm.
6. The cylindrical probe rod with simple structure and low cost as claimed in claim 1, wherein the probe rod body is made of POM material.
7. A simple in construction and low cost cylindrical probe rod in accordance with claim 6 wherein the probe rod body has a side wall thickness of at least 5 mm.
8. The cylindrical probe rod with simple structure and low cost as claimed in claim 1, wherein the insulating glue is HZ-703 adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811549391.7A CN109633314B (en) | 2018-12-18 | 2018-12-18 | Simple structure and low-cost cylindrical detection stick |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811549391.7A CN109633314B (en) | 2018-12-18 | 2018-12-18 | Simple structure and low-cost cylindrical detection stick |
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| CN109633314A CN109633314A (en) | 2019-04-16 |
| CN109633314B true CN109633314B (en) | 2021-06-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86208238U (en) * | 1986-10-23 | 1987-09-09 | 龙继华 | Test pencil capable of indicating voltage level |
| CN87214780U (en) * | 1987-10-31 | 1988-04-27 | 董家右 | High voltage meter |
| CN2692679Y (en) * | 2003-08-07 | 2005-04-13 | 西安福润德电子科技有限公司 | Digital high-voltage acoustooptical electroscope |
| CN101046486A (en) * | 2007-04-25 | 2007-10-03 | 夏大洪 | Safe electroscope |
| CN203870215U (en) * | 2014-06-05 | 2014-10-08 | 广州朗国电子科技有限公司 | Testing apparatus of control main board of liquid crystal display television set |
| CN203981757U (en) * | 2014-07-25 | 2014-12-03 | 孙良志 | Multifunctional contact capacitor type high voltage electroscope |
-
2018
- 2018-12-18 CN CN201811549391.7A patent/CN109633314B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86208238U (en) * | 1986-10-23 | 1987-09-09 | 龙继华 | Test pencil capable of indicating voltage level |
| CN87214780U (en) * | 1987-10-31 | 1988-04-27 | 董家右 | High voltage meter |
| CN2692679Y (en) * | 2003-08-07 | 2005-04-13 | 西安福润德电子科技有限公司 | Digital high-voltage acoustooptical electroscope |
| CN101046486A (en) * | 2007-04-25 | 2007-10-03 | 夏大洪 | Safe electroscope |
| CN203870215U (en) * | 2014-06-05 | 2014-10-08 | 广州朗国电子科技有限公司 | Testing apparatus of control main board of liquid crystal display television set |
| CN203981757U (en) * | 2014-07-25 | 2014-12-03 | 孙良志 | Multifunctional contact capacitor type high voltage electroscope |
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| CN109633314A (en) | 2019-04-16 |
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Inventor after: Lu Xiangyu Inventor after: Zhang Ningqiang Inventor after: Lu Xiangshui Inventor after: Zeng Qiang Inventor before: Lu Hengyu Inventor before: Zhang Ningqiang Inventor before: Lu Xiangshui Inventor before: Zeng Qiang |
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