CN208283507U - A kind of flexible contactless Partial Discharge Detection ultrasonic sensor - Google Patents
A kind of flexible contactless Partial Discharge Detection ultrasonic sensor Download PDFInfo
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- CN208283507U CN208283507U CN201820921157.1U CN201820921157U CN208283507U CN 208283507 U CN208283507 U CN 208283507U CN 201820921157 U CN201820921157 U CN 201820921157U CN 208283507 U CN208283507 U CN 208283507U
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- ultrasonic sensor
- handle
- gooseneck
- partial discharge
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Abstract
The utility model discloses a kind of flexible contactless Partial Discharge Detection ultrasonic sensors, including handle, described handle one end is provided with gooseneck, the gooseneck is provided with detecting head far from one end of handle, the detecting head is internally provided with ultrasonic sensor, it is provided with signal amplifier on the inside of the handle, the handle is connected with spring wire far from one end of gooseneck, and the spring wire other end is connected with audio jack.The utility model is by being equipped with ultrasonic sensor, gooseneck and coaxial cable, when to be worked, switchgear local discharge signal is collected by ultrasonic sensor, with the characteristics such as high sensitivity, good directionality, frequency response be good, different detection positions is suitable for using flexible gooseneck hose, detection position is more flexible, detection range covering is wider.
Description
Technical field
The utility model relates to high-tension switch cabinet Partial Discharge Detection field, in particular to a kind of flexible contactless office
Portion's discharge examination ultrasonic sensor.
Background technique
In recent years, with the construction of national smart grid, to the safety in operation and reliability requirement of power system device
It increasingly improves, high-tension switch cabinet is one of most important electrical equipment of smart grid, and main function is sent out in electric system
Electrical equipment is opened and closed, controlled and protected during electricity, transmission of electricity, distribution.The safe operation of high-tension switch cabinet is for power grid
Stability it is significant.By statistics because caused by shelf depreciation defect accident accounted for sizable ratio, therefore to change
The Partial Discharge Detection that high-tension switch cabinet is carried out in power station promotes with of crucial importance the construction of entire smart grid.Shelf depreciation inspection
Survey is the main means for evaluating high voltage electric equipment insulation status, can dynamically reflect electrical equipment by detecting partial discharge quantity
Insulation status, and realize early warning to apparatus insulated potential defective failure, by analysis to testing result and
Processing effectively avoids the generation of thing.In order to detect a series of electricity, the sound, magnetic ginseng that shelf depreciation people generate for shelf depreciation
Number devises many instrument for measuring partial discharge.Partial discharge phenomenon can discharge charge when occurring, while charge ionizes in air
Ultrasonic wave is generated, the generation and severity of shelf depreciation are determined whether accordingly by detection ultrasonic signal amplitude size.
For high-tension switch cabinet, since its volume is larger, structure is complicated, the local discharge signal spread out of from inside switch cabinet compares
It is faint, it requires ultrasonic sensor detection flexibility in position with higher, higher detection sensitivity and stronger anti-
Interference performance.
Therefore, a kind of flexible contactless Partial Discharge Detection ultrasonic sensor is invented, to solve the above problems
It is necessary to.
Utility model content
The purpose of this utility model is to provide a kind of flexible contactless Partial Discharge Detection ultrasonic sensor,
By being equipped with ultrasonic sensor and gooseneck, it is suitable for different detection positions, detection position is more flexible, detection range covers
It is wider, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of flexible contactless shelf depreciation
Detection uses ultrasonic sensor, including handle, described handle one end to be provided with gooseneck, the one end of the gooseneck far from handle
It is provided with detecting head, the detecting head is internally provided with ultrasonic sensor, is provided with signal amplifier on the inside of the handle, institute
It states handle and is connected with spring wire far from one end of gooseneck, the spring wire other end is connected with audio jack.
Preferably, the ultrasonic sensor is the ultrasonic sensor of 40KHz, and the detecting head is aluminum alloy material
It is made.
Preferably, the ultrasonic sensor output end is provided with coaxial cable, and the coaxial cable other end is connected with
Signal amplifier input terminal is electrically connected between the ultrasonic sensor and signal amplifier.
Preferably, the gooseneck is made of metal hose material, and the coaxial cable is through inside gooseneck.
Preferably, the handle is made of metal material, and the handle surfaces are provided with silica gel sheath.
Preferably, the spring wire and coaxial cable surface are provided with shielded layer, are provided with metal in the shielded layer
Netted organization level.
The technical effect and advantage of the utility model:
1, pass through ultrasonic sensor pair when to be worked by being equipped with ultrasonic sensor, gooseneck and coaxial cable
Partial discharge of switchgear signal is collected, and has the characteristics such as high sensitivity, good directionality, frequency response be good, using flexible gooseneck
Pipe is suitable for different detection positions, and detection position is more flexible, detection range covering is wider；
2, electricity can effectively be shielded since detecting head is made of aluminum alloy material by being equipped with detecting head and shielded layer
Magnetic disturbance, shielded layer can effectively reduce interference of the extraneous electromagnetic field to communication line, to avoid test signal transmission
In the process by electromagnetic effect, stronger anti-interference ability is made it have, improves its measurement sensitivity.
Detailed description of the invention
Fig. 1 is the overall structure schematic elevation view of the utility model.
Fig. 2 is the utility model gooseneck warp architecture schematic elevation view.
Fig. 3 is Tthe utility model system structural schematic diagram.
In figure: 1 handle, 2 goosenecks, 3 detecting heads, 4 ultrasonic sensors, 5 signal amplifiers, 6 spring wires, 7 audios are inserted
Head, 8 coaxial cables, 9 silica gel sheaths, 10 shielded layers.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of as shown in Figs. 1-3, flexible contactless Partial Discharge Detection ultrasonic wave
Sensor, including handle 1, described 1 one end of handle are provided with gooseneck 2, are suitable for different detection positions, the gooseneck 2
One end far from handle 1 is provided with detecting head 3, and the detecting head 3 is internally provided with ultrasonic sensor 4,1 inside of handle
It is provided with signal amplifier 5, signal amplifier 5 is made to enhance signal transmission quality, the handle 1 connects far from one end of gooseneck 2
It is connected to spring wire 6,6 other end of spring wire is connected with audio jack 7.
Further, in the above-mentioned technical solutions, the ultrasonic sensor 4 is the ultrasonic sensor of 40KHz,
Characteristics, the detecting heads 3 such as high sensitivity, good directionality, frequency response be good are made of aluminum alloy material, dry so as to shield electromagnetism
It disturbs；
Further, in the above-mentioned technical solutions, 4 output end of ultrasonic sensor is provided with coaxial cable 8, described
8 other end of coaxial cable is connected with 5 input terminal of signal amplifier, and signal amplifier 5 is made to enhance signal transmission quality, the ultrasound
It is electrically connected between wave sensor 4 and signal amplifier 5；
Further, in the above-mentioned technical solutions, the gooseneck 2 is made of metal hose material, is suitable for different
Position is detected, detection position is more flexible, detection range covering is wider, and the coaxial cable 8 is through inside gooseneck 2；
Further, in the above-mentioned technical solutions, the handle 1 is made of metal material, and 1 surface of handle is provided with
Silica gel sheath 9 plays anti-skidding and comfortable hand-held；
Further, in the above-mentioned technical solutions, the spring wire 6 and 8 surface of coaxial cable are provided with shielded layer 10,
It is provided with metal net shaped organization level in the shielded layer 10, so as to effectively reduce extraneous electromagnetic field to communication line
Interference；
Further, in the above-mentioned technical solutions, the 5 model HDV-R45 signal amplifier of signal amplifier.
This practical working principle:
Referring to Figure of description 1-3, when to be worked, due to being provided with ultrasonic sensor 4 in detecting head 3, so as to
To be collected to switchgear local discharge signal, so that signal is transferred to signal amplifier 5 by coaxial cable 8, put signal
Big device 5 enhances signal transmission quality, has the characteristics such as high sensitivity, good directionality, frequency response be good, can using flexible gooseneck 2
Different detection positions is adapted to, detection position is more flexible, detection range covering is wider；
It,, can when ultrasonic sensor 4 works since detecting head 3 is made of aluminum alloy material referring to Figure of description 1
Effectively to shield electromagnetic interference, since spring wire 6 and 8 surface of coaxial cable are provided with shielded layer 10, set in shielded layer 10
It is equipped with metal net shaped organization level, so as to effectively reduce interference of the extraneous electromagnetic field to communication line, test is avoided to believe
It number is affected in transmission process, makes it have stronger anti-interference ability, improve its measurement sensitivity.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of flexible contactless Partial Discharge Detection ultrasonic sensor, including handle (1), it is characterised in that: institute
It states handle (1) one end to be provided with gooseneck (2), the gooseneck (2) is provided with detecting head (3), institute far from the one end of handle (1)
It states detecting head (3) to be internally provided with ultrasonic sensor (4), be provided with signal amplifier (5) on the inside of the handle (1), it is described
Handle (1) is connected with spring wire (6) far from the one end of gooseneck (2), and spring wire (6) other end is connected with audio jack
(7)。
2. the flexible contactless Partial Discharge Detection ultrasonic sensor of one kind according to claim 1, feature
Be: the ultrasonic sensor (4) is the ultrasonic sensor of 40KHz, and the detecting head (3) is aluminum alloy material system
At.
3. the flexible contactless Partial Discharge Detection ultrasonic sensor of one kind according to claim 1, feature
Be: ultrasonic sensor (4) output end is provided with coaxial cable (8), and coaxial cable (8) other end is connected with letter
Number amplifier (5) input terminal, is electrically connected between the ultrasonic sensor (4) and signal amplifier (5).
4. the flexible contactless Partial Discharge Detection ultrasonic sensor of one kind according to claim 1, feature
Be: the gooseneck (2) is made of metal hose material, and it is internal that the coaxial cable (8) is through at gooseneck (2).
5. the flexible contactless Partial Discharge Detection ultrasonic sensor of one kind according to claim 1, feature
Be: the handle (1) is made of metal material, and handle (1) surface is provided with silica gel sheath (9).
6. the flexible contactless Partial Discharge Detection ultrasonic sensor of one kind according to claim 1, feature
Be: the spring wire (6) and coaxial cable (8) surface are provided with shielded layer (10), are provided in the shielded layer (10)
Metal net shaped organization level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820921157.1U CN208283507U (en) | 2018-06-14 | 2018-06-14 | A kind of flexible contactless Partial Discharge Detection ultrasonic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820921157.1U CN208283507U (en) | 2018-06-14 | 2018-06-14 | A kind of flexible contactless Partial Discharge Detection ultrasonic sensor |
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| Publication Number | Publication Date |
|---|---|
| CN208283507U true CN208283507U (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820921157.1U Active CN208283507U (en) | 2018-06-14 | 2018-06-14 | A kind of flexible contactless Partial Discharge Detection ultrasonic sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541416A (en) * | 2019-01-15 | 2019-03-29 | 珠海市伊特高科技有限公司 | A kind of Novel switch cabinet partial discharge detection instrument based on cloud |
-
2018
- 2018-06-14 CN CN201820921157.1U patent/CN208283507U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541416A (en) * | 2019-01-15 | 2019-03-29 | 珠海市伊特高科技有限公司 | A kind of Novel switch cabinet partial discharge detection instrument based on cloud |
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