CN114184918A - Ultrasonic partial discharge detector - Google Patents
Ultrasonic partial discharge detector Download PDFInfo
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- CN114184918A CN114184918A CN202111526611.6A CN202111526611A CN114184918A CN 114184918 A CN114184918 A CN 114184918A CN 202111526611 A CN202111526611 A CN 202111526611A CN 114184918 A CN114184918 A CN 114184918A
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- back cover
- partial discharge
- solar panel
- discharge detector
- base plate
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- 239000000758 substrate Substances 0.000 claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005236 sound signal Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The application discloses detector is put in ultrasonic wave office includes: a back cover, the inside of which is equipped with a storage battery for supplying power to the whole device; the base plate is erected in the back cover, the surface of the base plate is respectively provided with a central processing unit and an analog-to-digital conversion module, and one side of the base plate is respectively provided with an interface and a probe; the top cover is covered on the back cover, a display screen is embedded in the surface of the top cover, and the display screen is connected with the substrate through a lead; the handheld equipment has the technical key points that the handheld equipment is designed to be used for a long time, so that a handle with a larger size is designed to increase the holding hand feeling; external sensor accessories such as an external ultrasonic probe, a wave condenser and the like are designed, a quick self-locking interface form is used, and the quick self-locking type ultrasonic probe, the wave condenser and the like are convenient to insert and can prevent falling; the solar panel set is designed on the back cover, and can be folded or unfolded for use, so that the solar panel set can be folded or unfolded for use, the effect of light condensation is achieved when the solar panel set is unfolded for use while more space is avoided, and the efficiency of energy conversion can be increased.
Description
Technical Field
The invention belongs to the field of ultrasonic partial discharge detectors, and particularly relates to an ultrasonic partial discharge detector.
Background
An ultrasonic partial discharge detector capable of sensing high frequency signals generated by operating equipment faults, vibration, leakage and electrical partial discharge; it uses a unique heterodyne method to convert these signals into audio signals, allowing the user to hear these sounds through the headset and see the intensity indication on the pointer.
The partial discharge detector can form some forms of ionization aiming at electric arc, electric trace and corona to interfere air molecules around the partial discharge detector, and the ultrasonic detector can compile the high-frequency noise generated by the phenomenon into an audible sound signal of human ears by using a heterodyne method through detecting the high-frequency noise; under normal circumstances, the electrical equipment should be silent, although there is sometimes a constant hum or steady mechanical noise, which is quite different from partial discharge producing sound signals; receiving ultrasonic signals generated by electrical equipment through an instrument and analyzing the tone quality and the intensity of the ultrasonic signals;
the traditional ultrasonic partial discharge detector has the following technical problems in use: firstly, when the traditional detector is connected to external equipment, the traditional detector is easy to fall off; secondly, the endurance of the whole detector cannot be effectively guaranteed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an ultrasonic partial discharge detector, which solves the problems in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
an ultrasonic partial discharge detector comprising:
a back cover, the inside of which is equipped with a storage battery for supplying power to the whole device;
the base plate is erected in the back cover, the surface of the base plate is respectively provided with a central processing unit and an analog-to-digital conversion module, and one side of the base plate is respectively provided with an interface and a probe; and
the top cover covers the back cover, a display screen is embedded in the surface of the top cover, and the display screen is connected with the substrate through a wire.
Furthermore, a notch for inserting the interface and the probe is formed in the end head of the back cover, and a clamping plate is arranged on the back side of the back cover.
Furthermore, an electricity receiving groove is formed in the inner side of the back cover, the electricity receiving groove is connected with the substrate through a conducting wire, and the storage battery is clamped in the electricity receiving groove.
Furthermore, the interface and the probe are connected with the substrate through wires.
Further, the base plate is fixedly connected with the back cover through screws, and the top cover is fixedly connected with the back cover through screws.
Furthermore, a plurality of control buttons are arranged on the surface of the top cover and at positions adjacent to the display screen, and each control button is connected with the substrate through a wire.
Further, the surface of the top cover is overturned and provided with a turning plate, and the inner side of the turning plate is foldingly provided with a solar panel set.
Furthermore, solar panel group contains a plurality of solar panel, all connects through the wire between each solar panel, and the end of each solar panel passes through the pivot and connects, after the complete expansion solar panel group's shape is coniform.
(III) advantageous effects
Firstly, the handheld device is designed to be used for a long time, so that a handle with a larger size is designed to increase the holding hand feeling;
secondly, external sensor accessories such as an external ultrasonic probe, a wave collector and the like are designed, and a quick self-locking interface form is used, so that the plugging is convenient, and the falling prevention can be realized;
thirdly, this application is covered at the back and is designed solar panel group, collapsible or expand the use, when avoiding taking up more space, reaches the effect of spotlight when expanding the use, can increase energy conversion's efficiency.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
FIG. 2 is a schematic view of the solar panel assembly of the present invention in an expanded state;
FIG. 3 is a schematic view of the back cover structure of the present invention;
fig. 4 is a schematic diagram of a power filter circuit of the present invention.
Reference numerals: 1. a back cover; 2. a substrate; 3. a top cover; 4. a storage battery; 5. an electric connection groove; 6. a central processing unit; 7. a display screen; 8. an analog-to-digital conversion module; 9. an interface; 10. a probe head; 11. turning over a plate; 12. A solar panel group; 13. and (4) clamping the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, for the convenience of description, the terms "upper", "lower", "left" and "right" are used to refer to the same direction as the upper, lower, left, right, etc. of the drawings, and the terms "first", "second", etc. are used for descriptive distinction and have no special meaning.
Example 1:
in this embodiment, a specific structure of a processing tank is shown in fig. 1 to 3, and an ultrasonic partial discharge detector includes:
a back cover 1, inside of which a storage battery 4 for supplying power to the whole apparatus is mounted;
the base plate 2 is erected in the back cover 1, the surface of the base plate 2 is respectively provided with a central processing unit 6 and an analog-to-digital conversion module 8, and one side of the base plate 2 is respectively provided with an interface 9 and a probe 10; and
and the top cover 3 is covered on the back cover 1, a display screen 7 is embedded in the surface of the top cover 3, and the display screen 7 is connected with the substrate 2 through a lead.
In particular, the handheld device is designed to be used for a long time, so that the handle with a larger size is designed to increase the holding hand feeling.
In some examples, the back cover 1 has a notch at the end for inserting the interface 9 and the probing tip 10, and the back side of the back cover 1 is provided with a clamping plate 13.
Referring to fig. 1, it can be seen that a plurality of rubber protrusions are arranged on the inner wall of the interface 9, and when an external ultrasonic probe or a wave collector is inserted into the interface 9, the plurality of rubber protrusions can extrude and position the ultrasonic probe or the wave collector.
In some examples, the inner side of the back cover 1 is provided with an electricity receiving slot 5, the electricity receiving slot 5 is connected with the substrate 2 through a lead, and the storage battery 4 is clamped in the electricity receiving slot 5.
After the storage battery 4 is clamped into the power connection groove 5, the storage battery 4 can supply power to the whole device, and meanwhile, an inverter can be arranged on the substrate 2 and used for connecting the storage battery 4 and the solar panel set 12, so that after the solar panel set 12 converts light energy into electric energy, the electric energy is stored in the storage battery 4, and the cruising ability of the whole device is guaranteed.
In some examples, the interface 9 and the probe head 10 are connected to the substrate 2 by wires.
In some examples, the substrate 2 and the back cover 1 are fixedly connected by screws, and the top cover 3 and the back cover 1 are fixedly connected by screws.
In some examples, a plurality of operation buttons are arranged on the surface of the top cover 3 adjacent to the display screen 7, and each operation button is connected with the substrate 2 through a lead.
By adopting the technical scheme:
external sensor accessories such as but external ultrasonic transducer of this application design, wave gathering ware use quick self-locking type interface form, conveniently connect to insert can anti-drop.
Specifically, the ultrasonic detector uses an analog-to-digital conversion module 8 to convert the analog quantity of the sensor into digital quantity, the highest sampling rate of the detector in the application is 200MHz, and a common high-speed RAM is adopted to realize high-speed acquisition of data;
in order to solve the problem of bus conflict, the system adopts a read-write bus isolation technology, namely, an address line of a single chip microcomputer and an address line of an RAM are shielded when data acquisition is carried out, only AD sampled data are stored in the RAM, when the data are required to be transmitted to an upper computer after the acquisition is finished, a data line of an A/D converter is shielded, and meanwhile, an address, data and a read-write control bus of the single chip microcomputer are opened, so that the problem of bus conflict is effectively avoided;
the system is required by design indexes, and the A/D converter selected is AD 9225; the signal output by the output amplifying circuit in the design can be directly applied to the input end of the AD9225 for AD conversion without passing through the AD 9631.
In order to remove the mutual interference between the digital power supply and the analog power supply as much as possible, the chip (the central processing unit 6) provides a separated digital analog power supply, and in order to reduce errors caused by power supply instability as much as possible, power supply filter circuits are respectively added in the design, as shown in fig. 4, and meanwhile, a capacitor network is designed between the CAPB and the CAPT in order to reduce the noise influence of a reference power supply.
Example 2:
the embodiment shows a specific structure of the top cover, as shown in fig. 1 and 2, the surface of the top cover 3 is flip-type equipped with a turning plate 11, and the inner side of the turning plate 11 is foldable equipped with a solar panel group 12.
In some examples, the solar panel set 12 includes a plurality of solar panels, each solar panel is connected by a wire, and the ends of each solar panel are connected by a rotating shaft, and the fully unfolded solar panel set 12 is conical.
The section of the single solar panel is V-shaped, so that each solar panel can be normally used after being unfolded.
By adopting the technical scheme:
this application designs solar panel group 12 on back of the body lid 1, and collapsible or expansion use when avoiding taking up more space reaches the effect of spotlight when expanding the use, the efficiency of multiplicable energy conversion.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. An ultrasonic partial discharge detector, comprising:
a back cover (1) equipped on the inside with a battery (4) for powering the entire device;
the base plate (2) is erected in the back cover (1), the surface of the base plate (2) is respectively provided with a central processing unit (6) and an analog-to-digital conversion module (8), and one side of the base plate (2) is respectively provided with an interface (9) and a probe (10); and
the top cover (3) is covered on the back cover (1), a display screen (7) is embedded in the surface of the top cover (3), and the display screen (7) is connected with the substrate (2) through a wire.
2. The ultrasonic partial discharge detector according to claim 1, wherein: the end of the back cover (1) is provided with a notch for inserting the interface (9) and the probe (10), and a clamping plate (13) is arranged on the back side of the back cover (1).
3. The ultrasonic partial discharge detector according to claim 1, wherein: the inner side of the back cover (1) is provided with an electricity receiving groove (5), the electricity receiving groove (5) is connected with the substrate (2) through a lead, and the storage battery (4) is clamped in the electricity receiving groove (5).
4. The ultrasonic partial discharge detector according to claim 1, wherein: the interface (9) and the probe (10) are connected with the substrate (2) through wires.
5. The ultrasonic partial discharge detector according to claim 1, wherein: the base plate (2) is fixedly connected with the back cover (1) through screws, and the top cover (3) is fixedly connected with the back cover (1) through screws.
6. The ultrasonic partial discharge detector according to claim 1, wherein: the surface of the top cover (3) is provided with a plurality of control buttons at positions adjacent to the display screen (7), and the control buttons are connected with the substrate (2) through wires.
7. The ultrasonic partial discharge detector according to claim 1, wherein: the surface of the top cover (3) is overturned and provided with a turning plate (11), and the inner side of the turning plate (11) is foldingly provided with a solar panel group (12).
8. The ultrasonic partial discharge detector according to claim 7, wherein: the solar panel group (12) comprises a plurality of solar panels, all the solar panels are connected through wires, the ends of the solar panels are connected through rotating shafts, and the solar panel group (12) is completely unfolded and in a conical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111526611.6A CN114184918A (en) | 2021-12-14 | 2021-12-14 | Ultrasonic partial discharge detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111526611.6A CN114184918A (en) | 2021-12-14 | 2021-12-14 | Ultrasonic partial discharge detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114184918A true CN114184918A (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111526611.6A Pending CN114184918A (en) | 2021-12-14 | 2021-12-14 | Ultrasonic partial discharge detector |
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| Country | Link |
|---|---|
| CN (1) | CN114184918A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10127292A1 (en) * | 2001-06-05 | 2002-12-12 | Seefluth Christian U | Solar current supply or charging device has solar cells or modules on panels preferably less than 3 mm. thick that can be arranged as compact arrangement or in rigid joined sections |
| KR101181713B1 (en) * | 2012-05-24 | 2012-09-10 | 대영종합산기(주) | The apparatus and method of hybrid partial discharge detector |
| US20170082674A1 (en) * | 2015-09-21 | 2017-03-23 | Advent Design Corporation, doing business as TESCO The Eastern Specialty Company | Electric meter and contact arcing detector, and arcing detector therefor |
| WO2019169325A1 (en) * | 2018-03-01 | 2019-09-06 | Ecm Industries, Llc | Pocket multimeter |
| CN211348519U (en) * | 2019-12-27 | 2020-08-25 | 保定市海纳电气有限公司 | Hand-held high-voltage switch cabinet partial discharge instrument |
-
2021
- 2021-12-14 CN CN202111526611.6A patent/CN114184918A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10127292A1 (en) * | 2001-06-05 | 2002-12-12 | Seefluth Christian U | Solar current supply or charging device has solar cells or modules on panels preferably less than 3 mm. thick that can be arranged as compact arrangement or in rigid joined sections |
| KR101181713B1 (en) * | 2012-05-24 | 2012-09-10 | 대영종합산기(주) | The apparatus and method of hybrid partial discharge detector |
| US20170082674A1 (en) * | 2015-09-21 | 2017-03-23 | Advent Design Corporation, doing business as TESCO The Eastern Specialty Company | Electric meter and contact arcing detector, and arcing detector therefor |
| WO2019169325A1 (en) * | 2018-03-01 | 2019-09-06 | Ecm Industries, Llc | Pocket multimeter |
| CN211348519U (en) * | 2019-12-27 | 2020-08-25 | 保定市海纳电气有限公司 | Hand-held high-voltage switch cabinet partial discharge instrument |
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