CN207009184U - High-precision intrinsic standoff ratio resistor - Google Patents
High-precision intrinsic standoff ratio resistor Download PDFInfo
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- CN207009184U CN207009184U CN201720505668.0U CN201720505668U CN207009184U CN 207009184 U CN207009184 U CN 207009184U CN 201720505668 U CN201720505668 U CN 201720505668U CN 207009184 U CN207009184 U CN 207009184U
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- resistor
- resistance
- intrinsic standoff
- standoff ratio
- precision
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Abstract
The utility model discloses a kind of high-precision intrinsic standoff ratio resistor, the high-precision intrinsic standoff ratio resistor includes first resistor, second resistance, 3rd resistor and ceramic rod, first resistor, second resistance and 3rd resistor are sintered on ceramic rod after being sequentially connected in series, the end of first resistor is connected with the first lead-out wire, and the end of second resistance is connected with the second lead-out wire.Among the utility model, have additional 3rd resistor, compared in the prior art only have first resistor and second resistance, 3rd resistor can carry out the trickle adjustment of partial pressure, so as to more precisely control the intrinsic standoff ratio of first resistor and second resistance and 3rd resistor, can be applicable in the design requirement with high-precision requirement in use.
Description
Technical field
The utility model belongs to resistive technologies field, more particularly to a kind of high-precision intrinsic standoff ratio resistor.
Background technology
Power system at present realizes the measurement to voltage signal, but electricity using traditional induction voltage transformer more
Electromagnetic type voltage transformer has that volume is big, dynamic range is small, service band is narrow, ferromagnetic resonance, double measurement can not short circuit ask
Topic.Electronic type voltage transformer is the principle measurement voltage using resitstance voltage divider, in angular difference, extraordinary more consistent than having in difference
Property and stability, electronic type voltage transformer substitution electromagnetic potential transformer become a kind of inevitable trend.
Existing electronic type voltage transformer in use, compensates the resistance of its inside than difference in use
Can not accurately it be controlled so that it is also just inaccurate to the voltage distributed the control between each resistance of its inside, can not be complete
Into many high requests operation in practice.
A kind of differential configuration resitstance voltage divider is disclosed in the prior art, including：Shield shell, printed circuit board, first
Branch bleeder circuit, second bleeder circuit and leveling potentiometer；The printed circuit board is fixed in the shielding shell；It is described
First bleeder circuit is connected with second bleeder circuit by the leveling potentiometer, and is fixed on the printing electricity
On the plate of road；First bleeder circuit is identical with second bleeder circuit structure, including：High-voltage arm resistance, gas are put
Fulgurite, filter capacitor, transient voltage suppressor, low-voltage arm resistance and joint.The present invention uses two bleeder circuit parallel connections
Form, it is equal that two circuit intrinsic standoff ratios are adjusted by leveling potentiometer, can effective suppression common mode interference signal, can also realize pair
The measurement of floating potential；For non-floating potential, single channel or two-way can be used to measure, simple and reliable for structure, the security of measurement
It is high with accuracy, it can effectively measure the direct current and low-frequency ac voltage within 15kV.The documents are by circuit and other
Part realizes that the partial pressure of part different piece is adjusted, and can not be realized from the improvement of the structure of component in itself.
The content of the invention
To solve the above problems, the purpose of this utility model is a kind of by adding one in existing resistor in providing
Individual resistance realizes the high-precision intrinsic standoff ratio resistor of the purpose of high-precision partial pressure regulation.
To achieve the above object, the technical solution of the utility model is as follows.
A kind of high-precision intrinsic standoff ratio resistor, it is characterised in that the high-precision intrinsic standoff ratio resistor includes first resistor, the
Two resistance, 3rd resistor and ceramic rod, the first resistor, second resistance and 3rd resistor are sintered in ceramic rod after being sequentially connected in series
On, the end of the first resistor is connected with the first lead-out wire, and the end of the second resistance is connected with the second lead-out wire.At this
Using new central, 3rd resistor is had additional, compared to there was only first resistor and second resistance in the prior art, 3rd resistor can
To carry out the trickle adjustment of partial pressure, so as to more precisely control the intrinsic standoff ratio of first resistor and second resistance and 3rd resistor,
Can be applicable during use with the design requirement of high-precision requirement in.
Further, the end of the first resistor, second resistance and 3rd resistor is all covered with platinum silver electrode, and first
One end of lead-out wire and the second lead-out wire is both connected in corresponding platinum silver electrode.The setting of platinum silver electrode can be easy to
One lead-out wire and the corresponding resistance connection of the second lead-out wire, and when substantially reducing the first lead-out wire and the second lead-out wire and working
The probability of loose contact, it ensure that the permanent normal operation of resistor.
Further, the high-precision intrinsic standoff ratio resistor also includes left cap and right cap, and the left cap is crimped on pottery
One end of porcelain rod, and right cap is crimped on the other end of ceramic rod.On the one hand the setting of left cap and right cap can protect pottery
The first resistor, second resistance and 3rd resistor on porcelain rod and ceramic rod；On the other hand, can facilitate high-precision partial pressure
Ratio resistance device is arranged in the required circuit used.
Further, screw hole is offered on the left cap and right cap.The setting of screw hole can be conveniently high
The fixation of precision intrinsic standoff ratio resistor, furthermore it is also possible to play radiating during the use of high-precision intrinsic standoff ratio resistor
Effect.
Further, the ceramic rod is cylinder.The ceramic rod of cylinder can ensure the volume situation of ceramic rod
Under, reduce the exceptional space shared by ceramic rod as far as possible, and the corner angle of ceramic rod appearance are reduced, the not rapid wear when colliding
It is bad.
The high-precision intrinsic standoff ratio resistor that the utility model is realized, in use, has additional 3rd resistor, compares
In there was only first resistor and second resistance in the prior art, 3rd resistor can carry out the trickle adjustment of partial pressure, so as to more accurate
Ground controls the intrinsic standoff ratio of first resistor and second resistance and 3rd resistor, can be applicable set with high-precision requirement in use
In meter demand.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model is implemented.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
High-precision intrinsic standoff ratio resistor shown in Figure 1, being realized by the utility model, the high-precision partial pressure ratio resistance
Device includes first resistor 1, second resistance 2,3rd resistor 3 and ceramic rod 4, first resistor 1, second resistance 2 and 3rd resistor 3 according to
It is sintered in after secondary series connection on ceramic rod 4, the end of first resistor 1 is connected with the first lead-out wire 5, the end connection of second resistance 2
There is the second lead-out wire 6.At this using among new, 3rd resistor 3 is had additional, compared to there was only first resistor 1 in the prior art
With second resistance 2,3rd resistor 3 can carry out the trickle adjustment of partial pressure, so as to more precisely control first resistor 1 and second
The intrinsic standoff ratio of resistance 2 and 3rd resistor 3, it can be applicable in the design requirement with high-precision requirement in use.
In the present embodiment, the end of first resistor 1, second resistance 2 and 3rd resistor 3 is all covered with platinum silver electrode 10,
And first one end of lead-out wire 5 and the second lead-out wire 6 be both connected in corresponding platinum silver electrode 10.Platinum silver electrode 10 is set
The resistance that putting can be easy to the first lead-out wire 5 corresponding with the second lead-out wire 6 connects, and substantially reduces the He of the first lead-out wire 5
The probability of loose contact, ensure that the permanent normal operation of resistor when second lead-out wire 6 works.
In the present embodiment, the high-precision intrinsic standoff ratio resistor also includes left cap 7 and right cap 8, and left cap 7 is crimped on
One end of ceramic rod 4, and right cap 8 is crimped on the other end of ceramic rod 4.The setting of left cap 7 lid and right cap 8 on the one hand can be with
Protect ceramic rod 4 and first resistor 1, second resistance 2 and 3rd resistor 3 on ceramic rod 4；On the other hand, can facilitate height
Precision intrinsic standoff ratio resistor is arranged in the required circuit used.
In the present embodiment, screw hole 9 is offered on left cap 7 and right cap 8.The setting of screw hole 9 can facilitate
The fixation of high-precision intrinsic standoff ratio resistor, furthermore it is also possible to play radiating during the use of high-precision intrinsic standoff ratio resistor
Effect.
In the present embodiment, ceramic rod 4 is cylinder.The ceramic rod 4 of cylinder can ensure the volume of ceramic rod 4
In the case of, reduce the exceptional space shared by ceramic rod 4 as far as possible, and the corner angle of the appearance of ceramic rod 4 are reduced, when colliding
It is hardly damaged.
The high-precision intrinsic standoff ratio resistor that the utility model is realized, in use, has additional 3rd resistor 3, phase
Than in there was only first resistor 1 and second resistance 2 in the prior art, 3rd resistor 3 can carry out the trickle adjustment of partial pressure, so as to more
The intrinsic standoff ratio of first resistor 1 and second resistance 2 and 3rd resistor 3 is accurately controlled, can be applicable in use and high accuracy
It is required that design requirement in.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (5)
1. a kind of high-precision intrinsic standoff ratio resistor, it is characterised in that the high-precision intrinsic standoff ratio resistor includes first resistor, second
Resistance, 3rd resistor and ceramic rod, the first resistor, second resistance and 3rd resistor are sintered in ceramic rod after being sequentially connected in series
On, the end of the first resistor is connected with the first lead-out wire, and the end of the second resistance is connected with the second lead-out wire.
2. high-precision intrinsic standoff ratio resistor as claimed in claim 1, it is characterised in that the first resistor, second resistance and
The end of 3rd resistor is all covered with platinum silver electrode, and one end of the first lead-out wire and the second lead-out wire be both connected to it is corresponding
Platinum silver electrode on.
3. high-precision intrinsic standoff ratio resistor as claimed in claim 1, it is characterised in that the high-precision intrinsic standoff ratio resistor also wraps
Left cap and right cap are included, the left cap is crimped on one end of ceramic rod, and right cap is crimped on the other end of ceramic rod.
4. high-precision intrinsic standoff ratio resistor as claimed in claim 3, it is characterised in that opened on the left cap and right cap
Provided with screw hole.
5. high-precision intrinsic standoff ratio resistor as claimed in claim 1, it is characterised in that the ceramic rod is cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720505668.0U CN207009184U (en) | 2017-05-08 | 2017-05-08 | High-precision intrinsic standoff ratio resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720505668.0U CN207009184U (en) | 2017-05-08 | 2017-05-08 | High-precision intrinsic standoff ratio resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207009184U true CN207009184U (en) | 2018-02-13 |
Family
ID=61443048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720505668.0U Active CN207009184U (en) | 2017-05-08 | 2017-05-08 | High-precision intrinsic standoff ratio resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207009184U (en) |
-
2017
- 2017-05-08 CN CN201720505668.0U patent/CN207009184U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211105 Address after: 523648 Room 101, building 17, Lihe Bauhinia intelligent manufacturing center, No. 105, Qingbin East Road, Qingxi Town, Dongguan City, Guangdong Province Patentee after: GUANGDONG YIJIE TECHNOLOGY Co.,Ltd. Address before: 518057 23 buildings of Shenzhen science and Technology Industrial Park, Shenzhen, Guangdong, north 5 and 6 floor. Patentee before: EBG-SHENZHEN Co.,Ltd. |