CN106783418A - A kind of electric connection structure of switching device - Google Patents
A kind of electric connection structure of switching device Download PDFInfo
- Publication number
- CN106783418A CN106783418A CN201611099333.XA CN201611099333A CN106783418A CN 106783418 A CN106783418 A CN 106783418A CN 201611099333 A CN201611099333 A CN 201611099333A CN 106783418 A CN106783418 A CN 106783418A
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- Prior art keywords
- plug
- contact
- fixed
- terminals
- terminal
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
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Abstract
The present invention provides a kind of electric connection structure of switching device, for removable circuit breaker, the electric connection structure includes at least one fixed terminal, an at least plug in terminals and at least one plug-in type chuck, the plug in terminals is inserted in the middle of plug-in type chuck, for electrically being connected with the external electric terminal being connected on fixed terminal, the plug in terminals, fixed terminal and plug-in type chuck in working order when be many places contact.The beneficial effects of the invention are as follows improve conductive capability, with good centering capacity, it is ensured that reliable electric is connected, and reduces product cost, the market competitiveness is improved.
Description
Technical field
The invention belongs to electric field, specifically a kind of electric connection structure of switching device is more particularly to withdrawable
The electric connection structure of breaker.It can take out frame in " connection " position, " experiment " position and relative to fixed
Translated between individual " separation " position.This is taken out an opening for extracting breaker body out before frame, and is open relative
Underframe is provided with electric connection structure, realizes breaker body by the electric connection structure and takes out the connection of frame outside bus-bar, should
Structure belongs to electric field.
Background technology
Removable circuit breaker body and the electrical connection between taking out frame are by the smoking of conductive structure, insert and realize,
This contact by external terminal, insertion terminal and can generally be realized the structure that external terminal and insertion terminal are connected.General feelings
Under condition, external terminal is exposed to be taken out outside frame, the bus-bar connection in its one end and distribution loop, and the other end is used as electric connection structure
A part or be connected with the fixing terminal of electric connection structure；And insert terminal on the breaker body, its one end with it is disconnected
Conductive structure connection inside the device of road, the other end is connected in " connection " position with the electric connection structure in taking out frame, so as to realize breaking
The connection between bus-bar in the conductive structure and distribution loop of road device body interior.
In the prior art, Chinese patent ZL98127171.5 discloses a kind of electrical connection for removable circuit breaker
Structure, in the program, complete connection is carried in the fixing end of a contact surface more than the circular arc of π angles using one
Son, a plug-in type chuck with the contact surface accurately mate that should be more than π radians installed in groups.The concave shaped of the plug-in type chuck
Arc surface is accurately coordinated with the circular arc contact surface more than π in fixing terminal, and the other end is used for and insertion terminal enters
Row connection.The shortcoming of this structure is：Very weak line can only be carried out between plug-in type chuck and insertion terminal to coordinate, here
Into conductive weak link.
A kind of technical scheme is also disclosed that in Chinese patent CN1431744A, the program is with above-mentioned ZL98127171.5's
Scheme is similar to, i.e., the arc surface on the contact chip of plug-in type chuck with protrusion, has recessed arc surface in fixing terminal.Together
Sample, simply line coordinates between plug-in type chuck and insertion terminal, it is impossible to provide larger current capacity, meanwhile, the program is anti-
And can decline the excursion capability that plug-in type chuck tackles slotting tool.
Another structure is disclosed in Chinese patent ZL200620039576.X, the program passes through spring and mounting post will
Contact chip is assembled into one, and then contact chip is installed in fixed seat.Connection, contact between contact chip and fixing terminal
It is between piece and insertion terminal and faces connection directly.According to this technological invention scheme, if insertion terminal, plug-in type chuck, installation
The size of seat preserves value enough accurate, and it is accurately to enter plug-in type chuck according to design attitude and direction to insert terminal,
So insertion terminal can keep preferable face to contact between plug-in type chuck, between plug-in type chuck and mounting seat,
Even if but in the event of even error occurs in small skew or three's machining accuracy, insertion terminal will be by contact chip
" levering up ", makes contact chip and insertion terminal, all turns into linear contact lay between contact chip and fixing terminal, under making conductive capability drastically
Drop.
Therefore, the function and structure of the good electric connection structure of performance should have it is following require (：A) can reliably carry disconnected
The fault current of rated current is loaded beyond in the rated current of road device, certain hour, external terminal and insertion terminal are " even
Connect " position when, external terminal and insertion terminal and the contact surface of plug-in type chuck between have certain contact；
B continuing to develop for () power industry proposes more new requirements to breaker, such as under smaller volume, can carry higher
Electric current.C () due to the limitation of manufacturing technology and precision, breaker body enters when take out frame, plug-in type chuck should be able to gram
Influence of deviation when insertion terminal is inserted to contact effect is taken, i.e., with certain centering capacity, or in certain deviation
Under be reliably connected.
The content of the invention
The present invention designs a kind of electric connection structure of removable circuit breaker to overcome defect of the prior art,
Plug in terminals, fixed terminal and plug-in type chuck two ends line contact can be realized, bigger electric current is carried, and with correction
Function.
The present invention provides a kind of electric connection structure of switching device, for removable circuit breaker, the electric connection structure bag
Include：At least one fixed terminal, at least a plug in terminals and at least one plug-in type chuck, the plug in terminals are inserted in
In the middle of plug-in type chuck, for electrically being connected with the external electric terminal being connected on fixed terminal, the plug-in type
Terminal, fixed terminal and plug-in type chuck in working order when be many places contact.
Further, the plug-in type chuck includes at least one pair of fixed contact and at least one pair of armature contact, described solid
Fixed contact is contacted with fixed terminal and plug in terminals respectively, the armature contact respectively with the end face of fixed terminal and insert
The end face or two sides or side for entering formula terminal are in contact with the intersection of end face.
Further, the plug-in type chuck includes symmetrical contact chip combination, leaf spring, support member and mounting bracket, wherein
Contact chip combination includes multiple contact chips, and wherein contact chip includes inclusion cavity, draw-in groove, groove and fixed contact, the activity
Contact one end is arranged in inclusion cavity, and the other end is free to rotate in certain angle, and the armature contact has with inclusion cavity
At least one junction.
Further, the contact chip combination also includes at least one elastic component, the free end of the armature contact and
Elastic component end thereof contacts, the other end of the elastic component is arranged in the groove of contact chip.
Further, the armature contact is in the presence of elastic component, respectively with the end face of fixed terminal free ends and
The end face reliable contacts of plug in terminals.
Further, insertion end chi of the opening size of the jaws of the plug-in type chuck less than the plug in terminals
It is very little.
Further, the leaf spring is symmetrically mounted between the boss at the contact chip two ends, and the mounting bracket is arranged on
The outside of the leaf spring；The end face of the mounting bracket prevents the armature contact in the fixed terminal in axis A-A direction
Abjection.
Further, the fixed terminal free ends both sides are provided with the groove parallel to axis A-A.
Further, the fixed contact on contact chip is engaged with the groove on fixed terminal, forms stopping device, and institute
State fixed contact has at least one junction with the groove on fixed terminal.
Further, projection is additionally provided with the fixed contact, the raised groove with fixed terminal is engaged, is formed
Stopping device.
Further, the fixed terminal free ends both sides are provided with raised parallel to axis A-A, on the contact chip
Fixed contact is provided with groove；Projection is engaged with groove, forms groove and fixed terminal on stopping device, and the fixed contact
(1) projection of free end both sides has at least one junction.
The present invention also provides a kind of electrical connection module, including above-mentioned electric connection structure, and the component also includes breaker sheet
Body, what it was placed on drawout breaker takes out frame, and the plug in terminals is fixed on the breaker body；The fixation
Formula terminal is by screw association part in frame underframe is taken out.
The present invention also provides a kind of removable circuit breaker, including above-mentioned electric connection structure or electrical connection module.
The beneficial effects of the invention are as follows the electrical connection of plug in terminals and fixed terminal and plug-in type chuck, except solid
Fixed contact also add armature contact, and can improve conductive capability according to the number of current-carrying capacity demand adjustment armature contact；
When carrying identical electric current, identical structure, overall temperature rise reduction；With good centering capacity, plug-in type chuck can be around solid
Fixed pattern terminal is slightly swung, to adjust the alignment deviation of plug in terminals and plug-in type chuck caused by Product processing,
Ensure reliable electric connection；Because the structure can carry electric current higher, therefore during same bearer demand, plug-in type folder can be reduced
The quantity of head, so as to reduce copper consumption, sees silver-plated area, reduces product cost, improves the market competitiveness.
Brief description of the drawings
Fig. 1 is the decomposition texture schematic diagram of electric connection structure in the embodiment of the present invention；
Fig. 2 is plug-in type chuck structure schematic diagram in the embodiment of the present invention；
Fig. 3 is contact chip structural representation in the embodiment of the present invention；
Fig. 4 is that armature contact is assemblied in structural representation on contact chip in the embodiment of the present invention；
Fig. 5 is the structural representation of fixed terminal in the embodiment of the present invention；
Fig. 6 is mounting bracket structural representation in the embodiment of the present invention；
Fig. 7 is the sectional view of link block in the embodiment of the present invention, and one of plug-in type chuck has swung certain
Angle；
Fig. 8 is breaker partial structurtes perspective view in the embodiment of the present invention；
Fig. 9 is the structural representation of another embodiment of the present invention；
Figure 10 is the structural representation of further embodiment of this invention.
Figure of description is marked：1. fixed terminal；2. plug in terminals；3. armature contact；4. plug-in type chuck；5. bullet
Property part；6. fixed contact；7. groove；8. raised；9. fixed contact；10. leaf spring；11. mounting brackets；12. support members；13. contacts
Piece；14. inclusion cavities；15. grooves；16. draw-in grooves；17. boss；18. contact chips are combined；19. grooves；The end face of 20. mounting brackets；21.
Jaws；22. screw association parts；23. take out frame underframe；24. external electric terminals；The end face of 25. free ends；26. breaker bodies；
The end face of 27. plug in terminals；28. take out frame；29. drawout breakers；30. junctions；31. junctions；32. grooves；33. is convex
Rise；34. junctions.
Specific embodiment
Herein below combination Figure of description describes specific embodiment of the invention in detail：
In accompanying drawing 7 and 8, what breaker body 26 was placed on drawout breaker 29 takes out frame 28, breaker body 26
Can extract out or insert in frame 28 is taken out.One or more fixed terminals 1 are arranged on by screw association part 22 and take out frame underframe 23
In, external electric terminal 24 is connected on fixed terminal 1, and plug-in type chuck 4 is arranged on fixed terminal 1, plug-in type end
Son 2 is fixed on breaker body 26.
Every one-level of drawout breaker 29 includes several plug in terminals 2, is pressed from both sides by plug-in type on insertion position
Each of which is electrically connected to corresponding fixed terminal 1 by first 4.
As shown in figure 3, contact chip 13 is provided with inclusion cavity 14, draw-in groove 16 and groove 15, as shown in figure 4, armature contact 3 is pacified
In inclusion cavity 14, the free end of armature contact 3 is free to rotate in certain angle, and armature contact 3 is arranged on contact chip
13 one end contacts with inclusion cavity 14, and armature contact 3 has at least one junction 30 with inclusion cavity 14；Elastic component 5 is arranged on
In the groove 15 of contact chip 13, the elastic component 5 is a leaf spring, and one end of elastic component 5 is stuck in groove 15, and the other end is touched with activity
Point 3 is contacted, and in the presence of elastic component 5, armature contact 3 is limited in the side of inclusion cavity 14；Elastic component 5 and activity are installed
The contact chip 13 of contact 3 constitutes contact chip combination 18.
Referring to accompanying drawing 2,3,4,5,6, symmetrical contact chip combination 18 is assembled into leaf spring 10, support member 12 and mounting bracket 11
Plug-in type chuck 4, wherein support member 12 pass through the draw-in groove 16 on the contact chip 13 being arranged symmetrically, and the insertion of the two ends of support member 12 is installed
In groove 19 on frame 11；Leaf spring 10 is symmetrically mounted between the boss 17 at the two ends of contact chip 13, and mounting bracket 11 is arranged on leaf spring 10
Outside；The end face 20 of mounting bracket 11 prevents armature contact 3 in the abjection in fixed terminal axis A-A direction (such as Fig. 6 institutes
Show).
Referring to accompanying drawing 1, fixed terminal 1 is provided with the groove 7 for being basically parallel to axis A-A, and groove 7 is less than fixed terminal 1
The two sides of free end；The fixed contact 6 of plug-in type chuck 4 is engaged realization electrical connection with the groove 7 on fixed terminal 1,
And with least one junction 31；Armature contact 3 and the free end of fixed terminal 1 of the side of fixed contact 6 are located at simultaneously
End contact, elastic component 5 is compressed, and in the presence of elastic force, armature contact 3 can with the end face 25 of the free end of fixed terminal 1
It is abutted against tactile.On the other hand, the groove 7 on fixed contact 6 and fixed terminal 1 matches and is formed stopping device, for preventing insertion
Formula chuck 4 departs from fixed terminal 1.
The insertion plug-in type of plug in terminals 2 chuck 4, its specific implementation is performed as following, as shown in Figure 1 and Figure 7.
Plug-in type chuck 4 is arranged on fixed terminal 1, the armature contact 3 of the inboard of fixed contact 6 in the presence of elastic component 5 with it is solid
The end face 25 of the free end of fixed pattern terminal 1 is contacted, the work of the two sides of fixed contact 6 and the free end of fixed terminal 1 in leaf spring 10
Use lower reliable contacts.
During normal work, plug in terminals 2 is with the direction of insertion of breaker body 26, the free end of plug in terminals 2
The jaws 21 of insertion plug-in type chuck 4, the free end size bs of the opening size a less than plug in terminals 2 of jaws 21, with slotting
Enter the insertion of formula terminal 2, jaws 21 is softened, the spring pressure that the deformation of leaf spring 10 is produced is applied to the free end of plug in terminals 2
Two sides on, the two sides reliable contacts of fixed contact 9 and plug in terminals 2 are fixed with the insertion of plug in terminals 2
The armature contact 3 of the inboard of contact 9 is contacted with the end face 27 of plug in terminals 2, the stress of armature contact 3 rotation, until breaker sheet
When body is to link position, the two sides of the free end of plug in terminals 2 and end face 27 respectively can with fixed contact 9 and armature contact 3
It is abutted against tactile.Plug in terminals 2 from plug-in type chuck 4 extract when, in the presence of leaf spring 10, plug in terminals 2 and plug-in type are pressed from both sides
The frictional resistance produced between first 4, makes plug-in type chuck 4 have the trend moved in the lump with plug in terminals 2, now fixed contact
6 are engaged with the groove 7 on fixed terminal 1, stopping device are formed, for preventing plug-in type chuck 4 from departing from fixed terminal 1.
Knowable to the description of the above-mentioned course of work, fixed terminal 1 and plug in terminals 2 and plug-in type chuck 4 in the present invention
In addition to fixed contact 6 and 9 liang of electrical connections, two pairs of armature contacts 3 are also realized with fixed terminal 1 and plug in terminals 2 respectively
Electrical connection, compared to existing technology in single electrical contact, be effectively increased electric connecting point, improve and carry conductive
Ability.
Deviation-correcting function for the invention is described as follows：If plug-in type chuck 4 has swung certain angle around fixed terminal 1
Degree r (as shown in Figure 7), plug in terminals 2 is firstly inserted into the fixed contact 9 of plug-in type chuck 4, with plug in terminals 1 inwards
Insertion, plug-in type chuck 4 swings and coordinates with plug in terminals 2 and contacts, until plug in terminals 2 is contacted with armature contact 3, breaks
Road device body is to link position.
In the above-described embodiments, the end face 27 of the end face 25 of fixed terminal 1 and plug in terminals 4 respectively with armature contact
3 contact, the two 25 and 27 structures in a particular embodiment of end face can be except embodiment in it is out-of-plane can with activity touch
Any structure that point 3 coordinates, in additional embodiment, armature contact 3 is optional, the armature contact 3 at the two ends of plug-in type chuck 4
Can be one or a pair, it is also possible to do not assemble.
Armature contact 3 is contacted with the end face 27 of plug in terminals 2 and the end face 25 of fixed terminal 1, is further said, living
Movable contact 3 and the contact of plug in terminals 2 and fixed terminal 1 can also be the intersecting of contacts side surfaces or end face and side
Place's contact.
In a particular embodiment, fixed contact 6 is engaged with the groove 7 on fixed terminal 1, stopping device is formed, another
In outer embodiment, the outside of fixed contact 6 of plug-in type chuck 4 is provided with a projection 8, contact of the projection 8 higher than fixed contact 6
Face；One end that plug-in type chuck 4 has fixed contact 6 is arranged on fixed terminal 1, raised 8 in fixed contact 6 with it is fixed
Groove 7 on formula terminal 1 is engaged, and forms stopping device (as shown in Figure 9).
In another specific embodiment (as shown in Figure 10), the free end both sides of fixed terminal 1 are provided with parallel to axis A-A
Raised 33, the fixed contact 6 on the contact chip 13 is provided with groove 32；Raised 33 are engaged with groove 32, form stopping device, and institute
The groove 32 stated in fixed contact 6 has at least one junction 34 with raised the 33 of the free end both sides of fixed terminal 1.
In a particular embodiment, two fixed terminals 1 can be connected with each other, and further say fixed end of the invention
Son 1 can also be one or several.
Claims (10)
1. a kind of electric connection structure of switching device, for removable circuit breaker, the electric connection structure includes：At least one consolidates
Fixed pattern terminal (1), an at least plug in terminals (2) and at least one plug-in type chuck (4), the plug in terminals (2) are inserted in
In the middle of plug-in type chuck (4), for electrically being connected with the external electric terminal (24) being connected on fixed terminal (1)；
Characterized in that, the plug in terminals (2), fixed terminal (1) and plug-in type chuck in working order when be many places contact；
The plug-in type chuck (4) includes at least one pair of fixed contact (6,9) and at least one pair of armature contact (3), the fixation
One of them is contacted with fixed terminal (1) for contact (6,9), and another is contacted with plug in terminals (2), the armature contact with
The end face (25) of fixed terminal (1) and the end face (27) of plug in terminals (2) or two sides or side are intersected with end face
Place is in contact；
The plug-in type chuck (4) includes symmetrical contact chip combination (18), leaf spring (10), support member (12) and mounting bracket
(11), wherein contact chip combination (18) includes multiple contact chips (13), and wherein contact chip (13) includes inclusion cavity (14), draw-in groove
(16), groove (15) and fixed contact (6,9), described armature contact (3) one end are arranged in inclusion cavity (14), and the other end exists
Free to rotate in certain angle, the armature contact (3) is with inclusion cavity (14) with least one junction (30).
2. the electric connection structure of a kind of switching device according to claim 1, it is characterised in that the contact chip combination is also
Including at least one elastic component (5), the free end of the armature contact (3) contacts with an elastic component one end (5), the elastic component
(5) the other end is arranged in the groove (15) of contact chip (13).
3. a kind of electric connection structure of switching device according to claim 2, it is characterised in that the armature contact (3)
In the presence of elastic component (5), respectively with the end face (25) and the end face of plug in terminals (2) of fixed terminal (1) free end
(27) reliable contacts.
4. the electric connection structure of a kind of switching device according to claim 1, it is characterised in that the plug-in type chuck
Insertion end size of the opening size of jaws (21) less than the plug in terminals (2).
5. the electric connection structure of a kind of switching device according to claim 1, it is characterised in that the leaf spring (10) is symmetrical
Between the boss (17) at the contact chip (13) two ends, the mounting bracket (11) is installed in the outer of the leaf spring (10)
Side；The end face (20) of the mounting bracket (11) prevents the armature contact (3) in the fixed terminal (1) in axis A-A side
To abjection.
6. a kind of electric connection structure of switching device according to claim 1, it is characterised in that the fixed terminal
(1) free end both sides are provided with the groove (7) parallel to axis A-A.
7. a kind of electric connection structure of switching device according to claim 1, it is characterised in that consolidating on contact chip (13)
Fixed contact (6) is engaged with the groove (7) on fixed terminal (1), forms stopping device, and the fixed contact (6) and fixation
Groove (7) on formula terminal (1) is with least one junction (31).
8. a kind of electric connection structure of switching device according to claim 1, it is characterised in that the fixed contact (6)
On be additionally provided with raised (8), projection (8) is engaged with the groove (7) on fixed terminal (1), formation stopping device.
Fixed terminal (1) the free end both sides are provided with parallel to axis A-A projection (33), consolidating on the contact chip (13)
Fixed contact (6) is provided with groove (32)；Raised (33) are engaged with groove (32), are formed on stopping device, and the fixed contact (6)
The projection (33) of groove (32) and fixed terminal (1) free end both sides is with least one junction (34).
9. a kind of electric connection structure of one of electrical connection module, including claim 1-7, the component also includes breaker body
(26) what, it was placed on drawout breaker (29) takes out frame (28), and the plug in terminals (2) is fixed on the breaker sheet
On body (26)；The fixed terminal (1) is by screw association part (22) in frame underframe (23) is taken out.
10. a kind of removable circuit breaker, it is characterised in that including described at least one foregoing any one claim
Plant electric structure or the electrical connection module in succession of switching device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099333.XA CN106783418A (en) | 2016-12-02 | 2016-12-02 | A kind of electric connection structure of switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099333.XA CN106783418A (en) | 2016-12-02 | 2016-12-02 | A kind of electric connection structure of switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106783418A true CN106783418A (en) | 2017-05-31 |
Family
ID=58883956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611099333.XA Pending CN106783418A (en) | 2016-12-02 | 2016-12-02 | A kind of electric connection structure of switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106783418A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111211020A (en) * | 2018-11-21 | 2020-05-29 | Ls产电株式会社 | Contact assembly for distribution board |
-
2016
- 2016-12-02 CN CN201611099333.XA patent/CN106783418A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111211020A (en) * | 2018-11-21 | 2020-05-29 | Ls产电株式会社 | Contact assembly for distribution board |
| CN111211020B (en) * | 2018-11-21 | 2022-10-25 | Ls产电株式会社 | Contact assembly for distribution board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |