CN206573616U - A kind of bridge gripper for measuring conductor resistance value - Google Patents
A kind of bridge gripper for measuring conductor resistance value Download PDFInfo
- Publication number
- CN206573616U CN206573616U CN201720332445.9U CN201720332445U CN206573616U CN 206573616 U CN206573616 U CN 206573616U CN 201720332445 U CN201720332445 U CN 201720332445U CN 206573616 U CN206573616 U CN 206573616U
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- China
- Prior art keywords
- clamping part
- groove profile
- conductor
- insulated substrate
- groove
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Abstract
The utility model provides a kind of bridge gripper for measuring conductor resistance value, insulated substrate and two pairs of electrode holders being arranged on insulated substrate；Electrode holder includes the insulating base being arranged on insulated substrate and the conductive holding portion being arranged on the insulating base, conductive holding portion includes relatively-movable first clamping part and the second clamping part, first clamping part is provided with corresponding the first groove profile tooth and the second groove profile tooth being staggered with the second clamping part, " V " shape groove is equipped with first groove profile tooth and the second groove profile tooth, the angle of the " V " shape groove is chamfered to be set, after clamping conductor, there is more large access area between conductor, and the surface of " V " shape groove is additionally provided with a soft conductive layer, during clamping conductor, soft conductive layer pressurized zone can produce slight deformation, the soft conductive layer large area is enabled to be covered in conductor, further increase contact area, so that subsequent conductive is more uniform.
Description
Technical field
The utility model is related to cable testing technology field, and in particular to a kind of bridge gripper of measurement conductor resistance value.
Background technology
In power system, high pressure, ultra-high-voltage cable conductor section are excessive, and current-carrying capacity is also very high, and cable conductor is before use
Need accurately to measure its D.C. resistance, measuring apparatus is electric bridge.Using four termination collimation method metering systems during bridge measurement conductor, i.e.,
Two groups of current fixtures are clamped in the two ends of conductor, two groups of voltage fixtures are clamped in the milliken conductor between two groups of current fixtures
On, it is that conductor applies constant current by current fixture, and the conductor in one meter or other length is gathered by voltage fixture
Magnitude of voltage calculates the unit resistance of conductor.Two groups of voltage fixtures can in different length repeated measurement to verify the unit of conductor
Resistance value.
The test fixture of traditional electric bridge is two " V " shape clip slots being oppositely arranged, and such as Chinese patent ZL01254072.2 is public
A kind of fast clamping bridge gripper opened, can clamp sub-thread major diameter conductor.Such a fixture between conductor in use, contact
Usually linear contact lay, that is to say, that the contact surface of fixture and wire is only a line on the inclined-plane of " V " shape clip slot, therefore
In use, the current unevenness that electric current is applied on conductor is even, causes resistance measurement error larger.
Utility model content
Therefore, the utility model is solves above-mentioned to ask that a kind of big with conductor contact area, conductive uniform electric bridge of offer is pressed from both sides
Tool.
To reach above-mentioned purpose, a kind of bridge gripper for measurement conductor resistance value that the utility model is provided, including：Strip
The insulated substrate of shape and two pairs of electrode holders being arranged on insulated substrate；The insulated substrate surface along its length on
Provided with a chute, one pair of which electrode holder is respectively fixedly disposed at the two ends of insulated substrate as current fixture, another pair electricity
Pole fixture is slidably arranged on the chute of insulated substrate as voltage fixture；Electrode holder includes being arranged on insulated substrate
Insulating base and the conductive holding portion that is arranged on the insulating base, the conductive holding portion includes relatively-movable the
One clamping part and the second clamping part, first clamping part are provided with multiple first groove profile teeth, and second clamping part is provided with multiple
Second groove profile tooth, the first groove profile tooth is corresponding with the second groove profile tooth to be staggered, and the first groove profile tooth and the second groove profile tooth are equipped with " V "
Shape groove, the angle of the " V " shape groove is chamfered to be set, and the relative movement of first clamping part and the second clamping part makes first
Groove profile tooth is engaged with the second groove profile tooth and clamps conductor, and the surface of the " V " shape groove is equipped with a soft conductive layer.
A kind of preferred scheme of the present utility model, the conductive holding portion also includes fixed block and screw mandrel, the fixed block
It is arranged between the first clamping part and the second clamping part, the screw mandrel is rotatably provided on fixed block and clamped respectively with first
Portion and the second clamping part spin, and the hand of spiral that the screw mandrel spins with the first clamping part and the second clamping part respectively is on the contrary, silk
The rotation of bar drives the first clamping part and the second clamping part to be moved in opposite or opposite direction.
Another preferred scheme of the present utility model, the soft conductive layer bottom is fitted and fixed with " V " shape groove.
Another preferred scheme of the present utility model, the material of the soft conductive layer is soft copper.
The technical scheme provided by the utility model, has the advantages that：
The angle of " V " shape groove on first clamping part and the second clamping part is chamfered to be set, after clamping conductor, with leading
There is more large access area between body, and the surface of the " V " shape groove is additionally provided with a soft conductive layer, in clamping conductor process
In, soft conductive layer pressurized zone can produce slight deformation so that the soft conductive layer energy large area is covered in conductor, further
Increase contact area so that subsequent conductive is more uniform.
Brief description of the drawings
Fig. 1 show the schematic perspective view for the bridge gripper that conductor resistance value is measured in embodiment；
Fig. 2 show the decomposing schematic representation of part-structure in the bridge gripper that conductor resistance value is measured in embodiment.
Embodiment
To further illustrate each embodiment, the utility model is provided with accompanying drawing.These accompanying drawings are in the utility model is disclosed
A part for appearance, it is mainly to illustrate embodiment, and running of the associated description of specification to explain embodiment can be coordinated former
Reason.Coordinate and refer to these contents, those of ordinary skill in the art will be understood that other possible embodiments and this practicality are new
The advantage of type.Component in figure is not necessarily to scale, and similar element numbers are conventionally used to indicate similar component.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
Shown in reference picture 1, Fig. 2, a kind of bridge gripper for measurement conductor resistance value that the utility model is provided, including：It is long
The insulated substrate 50 of bar shaped and two pairs of electrode holders being arranged on insulated substrate 50；Two pairs of electrode holders are by first respectively
First pair of electrode holder of the electrode holder 40 of electrode holder 10 and the 4th composition, and by the electrode of second electrode fixture 20 and the 3rd
Second pair of electrode holder that fixture 30 is constituted.The surface of insulated substrate 50 is provided with a chute 51, first along its length
Make at the two ends that insulated substrate 10 is respectively fixedly disposed to the electrode holder 40 of first electrode fixture 10 and the 4th in electrode holder
For current fixture, the electrode holder 30 of second electrode fixture 20 and the 3rd of second pair of electrode holder is slidably arranged on insulated substrate
Voltage fixture is used as on 50 chute 51；Electrode holder includes the insulating base 1 being arranged on insulated substrate 50 and is arranged on
Conductive holding portion on the insulating base 1, the conductive holding portion includes relatively-movable first clamping part 2 and second and pressed from both sides
Portion 3 is held, first clamping part 2 is provided with three the first groove profile teeth 21, and second clamping part 3 is provided with two the second groove profile teeth
31, the first groove profile tooth 21 is corresponding with the second groove profile tooth to be staggered, the relative shifting of the clamping part 3 of the first clamping part 2 and second
Dynamic the first groove profile tooth 21 is engaged with the second groove profile tooth 31 and is clamped conductor, the first groove profile tooth 21 is equipped with the second groove profile tooth 31
" V " shape groove 8, the angle of the " V " shape groove 8 is chamfered to be set, and the surface of the " V " shape groove 8 is additionally provided with a soft conductive layer
6。
The conductive holding portion also includes fixed block 4 and screw mandrel 5, and the fixed block 4 is arranged on the first clamping part 2 and second
Between clamping part 3, the screw mandrel 5 is rotatably provided on fixed block 4 and revolved respectively with the first clamping part 2 and the second clamping part 3
Connect, the hand of spiral that the screw mandrel 5 spins with the first clamping part 2 and the second clamping part 3 respectively is on the contrary, one end of screw mandrel 5 also connects
One handle 7 is connect, handle 7 can be rotated manually, drives screw mandrel 5 to rotate, the rotation of screw mandrel 5 drives the first clamping part 2 and the second clamping
Portion 3 is in the movement of opposite or opposite direction.And then clamping or release of the realization to conductor.
As shown in Fig. 2 in the present embodiment, the material of the soft conductive layer 6 is soft copper, and stress is good.The table of " V " shape groove 8
Face is recessed provided with a groove 81, and the soft bottom of conductive layer 6 protrusion is fitted and fixed with the recessed of " V " shape groove 8 provided with a fitting portion 61
In groove 81, and then realization is laid on the surface of " V " shape groove 8, is connected firmly.Mode is fitted and fixed with for prior art, is in the art
Technical staff can realize easily, will not be described in detail herein.
Need test when, conductor is placed on a pair of electrodes fixture of current fixture, manual crank handle 7, make its first
Clamping part 2 is with the second clamping part 3 in moving towards, and the first groove profile tooth 21 is staggeredly engaged and progressively clamped with the second groove profile tooth 31 and leads
Body, in clamping process, conductor is clamped between the chamfering of the " V " shape groove 8 of the first groove profile tooth 21 and the second groove profile tooth 31, and
The soft pressurized zone of conductive layer 6 can produce slight deformation so that the soft energy of conductive layer 6 large area is covered in conductor, realizes electricity
Bump contact between pole fixture and conductor.A pair of electrodes fixture of voltage fixture is moved again to reach desired position, with
Same mode clamps conductor.The external constant-current supply of current fixture, leads between voltage fixture external voltage detection means and detection
The magnitude of voltage of body, so as to calculate the unitary resistance value of conductor.In measurement process, second electrode fixture 20 and can be repeatedly adjusted
The distance between three electrode holders 30, take multiple measurements checking.
The technical scheme that the utility model is provided, " V " angle of the " V " shape groove 8 is chamfered to be set, in clamping conductor
Afterwards, there is more large access area between conductor, and the surface of " V " shape groove 8 is additionally provided with a soft conductive layer 6, is led in clamping
During body, the soft pressurized zone of conductive layer 6 can produce slight deformation so that the soft energy of conductive layer 6 large area, which is covered in, to be led
Body, further increases contact area so that subsequent conductive is more uniform.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details
On the utility model can be made a variety of changes, be protection domain of the present utility model.
Claims (4)
1. a kind of bridge gripper for measuring conductor resistance value, it is characterised in that including：The insulated substrate of strip and it is arranged on
Two pairs of electrode holders on insulated substrate；The insulated substrate surface is provided with a chute, one pair of which electricity along its length
Pole fixture is respectively fixedly disposed at the two ends of insulated substrate as current fixture, and another pair electrode holder is slidably arranged on insulation
Voltage fixture is used as on the chute of substrate；Electrode holder includes the insulating base that is arranged on insulated substrate and to be arranged on this exhausted
Conductive holding portion on edge pedestal, the conductive holding portion includes relatively-movable first clamping part and the second clamping part,
First clamping part is provided with multiple first groove profile teeth, and second clamping part is provided with multiple second groove profile teeth, the first groove profile tooth
Corresponding with the second groove profile tooth to be staggered, the first groove profile tooth and the second groove profile tooth are equipped with " V " shape groove, the folder of the " V " shape groove
Angle is chamfered to be set, and the relative movement of first clamping part and the second clamping part makes the first groove profile tooth be stung with the second groove profile tooth
Merge clamping conductor, the surface of the " V " shape groove is equipped with a soft conductive layer.
2. the bridge gripper of measurement conductor resistance value according to claim 1, it is characterised in that：The conductive holding portion is also
Including fixed block and screw mandrel, the fixed block is arranged between the first clamping part and the second clamping part, and the screw mandrel is rotatably set
Put and spun on fixed block and respectively with the first clamping part and the second clamping part, the screw mandrel respectively with the first clamping part and second
The hand of spiral that clamping part spins is on the contrary, the rotation of screw mandrel drives the first clamping part and the second clamping part in opposite or opposite direction
It is mobile.
3. the bridge gripper of measurement conductor resistance value according to claim 1, it is characterised in that：The soft conductive layer bottom
Portion is fitted and fixed with " V " shape groove.
4. the bridge gripper of measurement conductor resistance value according to claim 1, it is characterised in that：The soft conductive layer
Material is soft copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332445.9U CN206573616U (en) | 2017-03-31 | 2017-03-31 | A kind of bridge gripper for measuring conductor resistance value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332445.9U CN206573616U (en) | 2017-03-31 | 2017-03-31 | A kind of bridge gripper for measuring conductor resistance value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206573616U true CN206573616U (en) | 2017-10-20 |
Family
ID=60053930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720332445.9U Expired - Fee Related CN206573616U (en) | 2017-03-31 | 2017-03-31 | A kind of bridge gripper for measuring conductor resistance value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206573616U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267619A (en) * | 2017-12-31 | 2018-07-10 | 江苏启源雷宇电气科技有限公司 | A kind of self-regulation fixture by capacitor pipeline high current |
| CN108872707A (en) * | 2018-04-28 | 2018-11-23 | 国网山东省电力公司电力科学研究院 | A kind of electric wire and cable conductor D.C. resistance aided measurement device and measurement method |
| CN109298242A (en) * | 2018-11-26 | 2019-02-01 | 广西广缆科技集团有限公司 | A kind of direct current resistance m easurem ent device of cable |
-
2017
- 2017-03-31 CN CN201720332445.9U patent/CN206573616U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267619A (en) * | 2017-12-31 | 2018-07-10 | 江苏启源雷宇电气科技有限公司 | A kind of self-regulation fixture by capacitor pipeline high current |
| CN108872707A (en) * | 2018-04-28 | 2018-11-23 | 国网山东省电力公司电力科学研究院 | A kind of electric wire and cable conductor D.C. resistance aided measurement device and measurement method |
| CN109298242A (en) * | 2018-11-26 | 2019-02-01 | 广西广缆科技集团有限公司 | A kind of direct current resistance m easurem ent device of cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 |