CN207009296U - Electric contact moving contact - Google Patents
Electric contact moving contact Download PDFInfo
- Publication number
- CN207009296U CN207009296U CN201720681464.2U CN201720681464U CN207009296U CN 207009296 U CN207009296 U CN 207009296U CN 201720681464 U CN201720681464 U CN 201720681464U CN 207009296 U CN207009296 U CN 207009296U
- Authority
- CN
- China
- Prior art keywords
- contact
- moving contact
- guide sleeve
- elastic component
- moving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003068 static effect Effects 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 19
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 239000002344 surface layer Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Measuring Leads Or Probes (AREA)
Abstract
The utility model discloses an electric contact moving contact, include: the testing contact end of the moving contact body is provided with a tin layer; and the elastic element is arranged at the other end of the moving contact body, which is far away from the test contact end, and is used for enabling the detection instrument to press the moving contact body through the elastic element so as to maintain a contact pressure between the moving contact body and the static contact. Adopt above-mentioned structure the utility model discloses simple structure, reasonable in design can get rid of the oxide film between the sound contact effectively, makes the test more accurate, and contact resistance does not have the drift.
Description
Technical field
It the utility model is related to detection contact technical field, and in particular to a kind of moving contact tapped in touching.
Background technology
The galvanic circle of electrical equipment is always made up of some elements, and two parts are contacted with each other and real by mechanical connection manner
Existing conductive phenomenon is referred to as making electrical contact with phenomenon.Electrical contact be divided into sliding contact and can tap it is tactile, sliding contact be generally suitable for only
The test being powered, such as high pressure aging operation are needed, and it is the distinctive electrical contact phenomenon of mechanical switch electrical equipment that can tap tactile, electricity
The connection on road is with cut-offfing the inevitable closure with electric-conductor with separating, and this is completed by the contact of switch, movable conduction
Part is moving contact, and motionless is static contact, is generally used for performance test, and such as resistance test, power, electric current, turn-to-turn are pressure-resistant.
Dispatch from the factory performance detection of the product in production line balance, detecting instrument need to be powered to the product of stepping movement wire body
Performance test is carried out, docking static contact by moving contact is made electrical contact with.The stabilization for the resistance that contact contacts repeatedly is to examine online
The important parameter of the reliability of survey, can it usually affects automatic detection line normal use.Traditional contact, due to contact
Material and structure design, contact surface oxidation is serious, forms the oxide layer of a thickness, and contact can be sent out in the course of the work
The raw badly damaged or melting welding because of electric arc, can all reduce measurement accuracy, influence measurement result.
Utility model content
In order to solve the above problems, the utility model provides a kind of moving contact of stable work in work.
Technical scheme is used by the utility model solves its technical problem：One kind electrical contact moving contact, including：
Moving contact body, the test contact jaw of moving contact body are provided with tin layers；
Elastic component, elastic component is located at the other end of the moving contact body away from test contact jaw, for passing through detecting instrument
Elastic component presses moving contact body, and makes to maintain a contact between moving contact body and static contact.
Preferably, moving contact body is provided with a tumbler, and tumbler is used for when elastic component compresses, control
Moving contact body rotates, to remove the oxide layer for testing contact surface.
Preferably, moving contact body includes：Guide sleeve；
Contact head, contact head are stretched into and are slidably mounted in guide sleeve in one end of guide sleeve；
Elastic component is installed in guide sleeve, and its one end abuts guide sleeve, other end abutting contact head, in contact head
There is provided when slipping into guide sleeve and slip into resistance.
Preferably, tumbler includes：
Swivelling chute, swivelling chute is on guide sleeve inwall or contact head outer wall；
Boss, boss corresponding rotation groove connect on contact head outer wall or guide sleeve inwall for coordinating swivelling chute to realize
The rotation of contact.
Preferably, elastic component is arranged to spring or is made of elastomeric material.
Preferably, elastic component is spring.
Preferably, tumbler is arranged to a rotary shaft, and rotary shaft is fixedly arranged on contact head along the radial direction of contact head
End is slipped into, the both ends of rotary shaft and the helicoid of spring coordinate, for being rotated by spring-compressed along its helicoid.
Preferably, in addition to a stable-pressure device, stable-pressure device is on moving contact body, for keeping elastic component
Press pressure.
Preferably, stable-pressure device includes：
Convex position, convex position is on guide sleeve；
Screens, the direction of motion of the screens along moving contact body, be fixedly installed on the front of convex position, in convex position with guiding
Set is when moving to certain distance, spacing to convex position to keep the press pressure of elastic component.
The beneficial effects of the utility model are：First, the test contact jaw in moving contact sets tin layers, due to the hardness of tin
Small, the mechanical strength of oxide-film is low, can effectively reduce contact resistance；Second, because the surface of actual contact is all concavo-convex
Uneven, actually there is very limited individual point contact between contact, when applying ambient pressure to contact, contact material will produce
Deforming, the contact area between dynamic/static contact will increase, and contact resistance will reduce, and in regime of elastic deformation, contact pressure
After power reaches certain value, contact resistance can be tended towards stability, therefore the setting of elastic component can be maintained effectively between dynamic/static contact
Contact, reduce contact resistance；Third, tumbler can rotate the contact head of moving contact, can remove dynamic/static contact it
Between oxide-film, reduce contact resistance.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples：
Fig. 1 is the structural representation of the first embodiment of the utility model；
Fig. 2 is the structure decomposition figure of the first embodiment of the utility model；
Fig. 3 is the structural representation of guide sleeve in the utility model the first embodiment；
Fig. 4 is the structural representation of second of embodiment of the utility model；
Fig. 5 is the sectional view of second of embodiment of the utility model.
Embodiment
Embodiment 1
Referring to Figures 1 and 2, the utility model is a kind of electrical contact moving contact, including：
Moving contact body, the test contact jaw of the moving contact body are provided with tin layers 6；
Elastic component, the elastic component is located at the other end of the moving contact body away from test contact jaw, for making detecting instrument
Moving contact body is pressed by elastic component, and makes to maintain a contact between moving contact body and static contact.
Because the hardness of tin is small, the mechanical strength of oxide-film is low, therefore tests contact jaw and set tin layers 6 effectively to subtract
Small contact resistance, make test result more accurate.Simultaneously as the surface of actual contact is all rough, it is real between contact
There is very limited individual point contact on border, when applying ambient pressure to contact, contact material will be deformed, between dynamic/static contact
Contact area will increase, and contact resistance will reduce, and in regime of elastic deformation, after contact reaches certain value, contact
Resistance can be tended towards stability, therefore the setting of elastic component can effectively maintain the contact between dynamic/static contact, and this is pressed
Power maintains optimal value, reduces contact resistance, can avoid purely mechanic pressure contact and contact deformation or pressure is crossed small resistor
The problem of larger, produces.
Although the oxide-film of tin is relatively thin, it can effectively reduce contact resistance after tin layers 6 are set, the present inventor keeps on improving
Be improved and it is perfect, make every effort to optimal case, reduce contact resistance to greatest extent, make the contact resistance of contact without drift,
Make the result precision of test higher, the present embodiment is provided with a tumbler on the moving contact body, and the tumbler is used
In when elastic component compresses, control moving contact body rotates, to remove the oxide layer for testing contact surface.
As illustrated, the moving contact body includes：Guide sleeve 1；Contact head 3, the contact head 3 is in the one of guide sleeve 1
End is stretched into and is slidably mounted in guide sleeve 1；The elastic component is installed in guide sleeve 1, and its one end abuts guide sleeve 1, another
Abutting contact first 3 is held, resistance is slipped into for being provided when contact head 3 is slipped into guide sleeve 1.Referring to figs. 1 to Fig. 3, dress is rotated
Put including：Swivelling chute 31, the swivelling chute 31 is on the outer wall of contact head 3；Boss 11, the corresponding rotation groove 31 of boss 11 are set
In on the inwall of guide sleeve 1, for coordinating swivelling chute 31 to realize the rotation of contact head 3.
During work, guide sleeve 1 drives contact head 3 to be moved to static contact under the control of detecting instrument, to contact head 3 with it is quiet
After contact, detecting instrument continues to control guide sleeve 1 to move, to make to tie up between contact head 3 and static contact by elastic component
A contact is held, by controlling the move distance of guide sleeve 1 to calculate and controlling the size of the contact, is allowed to most
It is excellent.In contact head 3 and static contact not in contact with before, because guide sleeve 1 and contact head 3 are to be synchronized with the movement, will not rotate；And
After contact head 3 contacts with static contact, when guide sleeve 1 continues motion, there occurs relative displacement between guide sleeve 1 and contact head 3,
Contact head 3 is rotated in the presence of swivelling chute 31 coordinates boss 11, and tin layers 6 and the oxide-film on static contact or electrochemistry are rotten
The rotation removal that layer is touched first 3 is lost, greatly reduces contact resistance.It should be noted that during one section in real work
Between after, it is necessary to be cleaned to the friction dust on dynamic and static contact.
The elastic component is arranged to spring 2 or is made of elastomeric material, such as sponge or rubber.And boss 11 and rotation
The position of turn trough 31 sets and can exchanged.
Form and position error can be produced in being run in view of equipment, relies only on detecting instrument to control the move distance of guide sleeve 1,
Actual motion distance after a period of operation can produce skew, it is necessary to readjust, more troublesome, therefore the present embodiment is also
One stable-pressure device is set, and the stable-pressure device is on moving contact body, for keeping the press pressure of elastic component.
As illustrated, the stable-pressure device specifically includes：Convex position 4, the convex position 4 is on guide sleeve 1；Screens 5, it is described
The direction of motion of the screens 5 along moving contact body, the front of convex position 4 is fixedly installed on, for being moved in convex position 4 with guide sleeve 1
It is spacing to convex position 4 to keep the press pressure of elastic component during certain distance.Set by the way that the compression distance of spring 2 is calculated
Put the distance between convex position 4 and screens 5.As illustrated, the present embodiment convexity position 4 is fixedly arranged on the upper end of guide sleeve 1,5 sets of screens
Located at the lower end of guide sleeve 1, in real work, screens 5 can be fixed by support feet and the frame of static contact one end and connected
Connect, can be also fixedly connected with the frame on detecting instrument to realize that position is fixed.
In summary, in real work, can on contact head 3 oiling set, so both beneficial to contact head 3 rotation and
Sliding entry/exit guide sleeve 1 (lubricating), can also completely cut off air, reduce oxidation.
A kind of electrical contact moving contact of the present embodiment, it is simple in construction, it is reasonable in design, can effectively it remove between dynamic/static contact
Oxide-film, make test more accurate, contact resistance is without drift.
Embodiment 2
Reference picture 4 and Fig. 5, the present embodiment based on embodiment 1, difference in the present embodiment elastic component set
For spring 2, the tumbler is arranged to a rotary shaft 7, and radial direction of the rotary shaft 7 along contact head 3 is fixedly arranged on contact head 3
End is slipped into, the both ends of rotary shaft 7 coordinate with the helicoid of spring 2, for being compressed by spring 2 to be rotated along its helicoid.
During work, after contact head 3 contacts with static contact, detecting instrument control moving contact body continues to move, now bullet
Spring 2, which starts to be pressurized, to be shunk, and rotary shaft 7 will move along the downside helicoid of spring 2, and then drives contact head 3 to rotate, to remove
Oxide-film between dynamic/static contact.
Above-described embodiment is preferred scheme of the present utility model, and the utility model can also have other embodiments.Ability
The technical staff in domain can also make equivalent variations or replacement on the premise of without prejudice to the utility model spirit, these equivalent changes
Type or replacement are all contained in the scope set by the application claim.
Claims (9)
1. one kind electrical contact moving contact, it is characterised in that including：
Moving contact body, the test contact jaw of the moving contact body are provided with tin layers (6)；
Elastic component, the elastic component is located at the other end of the moving contact body away from test contact jaw, for passing through detecting instrument
Elastic component presses moving contact body, and makes to maintain a contact between moving contact body and static contact.
A kind of 2. electrical contact moving contact as claimed in claim 1, it is characterised in that：The moving contact body is provided with one and rotated
Device, the tumbler are used for when elastic component compresses, the body rotation of control moving contact, to remove the oxidation for testing contact surface
Layer.
3. a kind of electrical contact moving contact as claimed in claim 2, it is characterised in that the moving contact body includes：
Guide sleeve (1)；
Contact head (3), the contact head (3) are stretched into and are slidably mounted in guide sleeve (1) in one end of guide sleeve (1)；
The elastic component is installed in guide sleeve (1), and its one end abuts guide sleeve (1), other end abutting contact head (3), with
In contact head (3) slip into guide sleeve (1) it is interior when provide slip into resistance.
4. a kind of electrical contact moving contact as claimed in claim 3, it is characterised in that the tumbler includes：
Swivelling chute (31), the swivelling chute (31) is on guide sleeve (1) inwall or contact head (3) outer wall；
Boss (11), boss (11) the corresponding rotation groove (31) are used on contact head (3) outer wall or guide sleeve (1) inwall
In the rotation for coordinating swivelling chute (31) to realize contact head (3).
A kind of 5. electrical contact moving contact as claimed in claim 4, it is characterised in that：The elastic component be arranged to spring (2) or
It is made of elastomeric material.
A kind of 6. electrical contact moving contact as claimed in claim 3, it is characterised in that：The elastic component is spring (2).
A kind of 7. electrical contact moving contact as claimed in claim 6, it is characterised in that：The tumbler is arranged to a rotary shaft
(7), radial direction of the rotary shaft (7) along contact head (3) is fixedly arranged on the end of slipping into of contact head (3), the both ends of rotary shaft (7) and bullet
The helicoid of spring (2) coordinates, for being compressed by spring (2) to be rotated along its helicoid.
A kind of 8. electrical contact moving contact as claimed in claim 3, it is characterised in that：Also include a stable-pressure device, the voltage stabilizing
Device is on moving contact body, for keeping the press pressure of elastic component.
9. a kind of electrical contact moving contact as claimed in claim 8, it is characterised in that the stable-pressure device includes：
Convex position (4), the convex position (4) is on guide sleeve (1)；
Screens (5), the direction of motion of the screens (5) along moving contact body, be fixedly installed on the fronts of convex position (4), for
It is spacing to convex position (4) to keep the press pressure of elastic component when convex position (4) moves to certain distance with guide sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681464.2U CN207009296U (en) | 2017-06-12 | 2017-06-12 | Electric contact moving contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681464.2U CN207009296U (en) | 2017-06-12 | 2017-06-12 | Electric contact moving contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207009296U true CN207009296U (en) | 2018-02-13 |
Family
ID=61445881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720681464.2U Expired - Fee Related CN207009296U (en) | 2017-06-12 | 2017-06-12 | Electric contact moving contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207009296U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556265A (en) * | 2019-09-06 | 2019-12-10 | 华东交通大学 | Rotary contact structure of vacuum arc-extinguishing chamber suitable for capacitive load switching |
| CN113517601A (en) * | 2021-09-14 | 2021-10-19 | 山东中都机器有限公司 | A prevent joint that became invalid for mine survey equipment |
-
2017
- 2017-06-12 CN CN201720681464.2U patent/CN207009296U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556265A (en) * | 2019-09-06 | 2019-12-10 | 华东交通大学 | Rotary contact structure of vacuum arc-extinguishing chamber suitable for capacitive load switching |
| CN113517601A (en) * | 2021-09-14 | 2021-10-19 | 山东中都机器有限公司 | A prevent joint that became invalid for mine survey equipment |
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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: 20180213 Termination date: 20180612 |