CN108231441A - A kind of structure of contact terminal - Google Patents
A kind of structure of contact terminal Download PDFInfo
- Publication number
- CN108231441A CN108231441A CN201810200372.7A CN201810200372A CN108231441A CN 108231441 A CN108231441 A CN 108231441A CN 201810200372 A CN201810200372 A CN 201810200372A CN 108231441 A CN108231441 A CN 108231441A
- Authority
- CN
- China
- Prior art keywords
- contact
- static
- component
- moving
- moving contact
- 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.)
- Granted
Links
- 230000003068 static effect Effects 0.000 claims abstract description 58
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 9
- 229910001887 tin oxide Inorganic materials 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
Abstract
A kind of structure of contact terminal disclosed by the invention, the moving contact component being movably connected on relatively, by connecting shaft including two positions on action frame, two moving contact components are in contact by the moving contact spring of insulation, are connected between two moving contact components by flexible link；Further include two cases for being located at the action frame both sides respectively, static contact component is connected with by connecting shaft on the case, the static contact component is corresponding with the moving contact component position of homonymy and is located in the stroke of moving contact component, the housing sidewall is connected with the static contact component in it by static contact spring, copper bar is connected on the case, the static contact component is connected with copper bar by flexible link.A kind of structure of contact terminal of the present invention is opened away from small, compact-sized, small, and operating force is small, impact energy is small, maintains that suction is small, and contact bounce is small in closing course, and contact is big, contact resistance is small, and contact can be easy and fast to disjunction with self-cleaning, contact.
Description
Technical field
The invention belongs to low voltage electrical apparatus technology fields, and in particular to a kind of structure of contact terminal.
Background technology
Having contact low-voltage electrical apparatus at present, mainly common structure of contact terminal has finger formula structure and bridge architecture.
Finger formula structure has the advantage that：There are rolling and sliding friction in interrupting process, contact surface oxide can be removed；It connects
Touch pressure is big, electrodynamical stability is high.It has the disadvantage that：One fracture is opened away from big, and electric appliance volume is big；Contact closure impact energy
Greatly, mechanical life is low.
Bridge architecture has the advantage that：Two series connection fractures, two effective arc extinguishing areas；It opens away from small, electrical structure is compact；It touches
It is small that head is closed impact energy.It has the disadvantage that：Contact is unable to self-cleaning；Contact pressure is small, and electrodynamical stability is low.
The defects of for above common structure of contact terminal, be highly desirable design one kind can self-cleaning, open away from small, small, electric
The structure of contact terminal that dynamic stability is high, impact energy is small.
Invention content
It is small, open away from small the purpose of the present invention is to provide a kind of structure of contact terminal, impact energy is reduced, is improved
Electrodynamical stability.
The technical solution adopted in the present invention is：A kind of structure of contact terminal, including two positions it is opposite, pass through connecting shaft activity
The moving contact component being connected on action frame, two moving contact components are in contact by the moving contact spring of insulation, two institutes
It states and is connected by flexible link between moving contact component；Two cases for being located at the action frame both sides respectively are further included, it is described
Static contact component is connected with by connecting shaft on case, the static contact component is opposite with the moving contact component position of homonymy
Should and it be located in the stroke of moving contact component, the housing sidewall is connected with the static contact component in it by static contact spring, institute
It states and copper bar is connected on case, the static contact component is connected with copper bar by flexible link.
The features of the present invention also characterized in that
Each moving contact component includes the movable contact block being movably connected on by the connecting shaft on the action frame,
The movable contact block is C-shaped, and two openends of the movable contact block are connected separately with Interposer contact piece, the movable contact block
Linkage section is connected with moving contact piece.
The moving contact plate shape is rectangle, circle or abnormity, and the Interposer contact plate shape is rectangle, circle or different
Shape.
The moving contact piece surface is plane or cambered surface, and the Interposer contact piece surface is plane or cambered surface.
The material of the movable contact block is copper, and the material of the moving contact piece is siller tin oxide or Agcdo, in described
Between contact blade material be siller tin oxide or Agcdo.
The static contact component includes the fixed contact pedestal being movably connected on by the connecting shaft in case, the static contact
There are two static contact pieces for the side setting of relatively described moving contact piece on seat.
The static contact plate shape is rectangle, circle or abnormity.
The surface of the static contact piece is plane or cambered surface.
The material of the fixed contact pedestal is copper, and the material of the static contact piece is siller tin oxide or Agcdo.
The side of the static contact piece is equipped with notch.
The beneficial effects of the invention are as follows：A kind of structure of contact terminal of the present invention, is opened away from small, compact-sized, small, operating force
It is small, impact energy is small, maintains that suction is small, and contact bounce is small in closing course, and contact is big, contact resistance is small, contact can be with
Self-cleaning, contact are easy and fast to disjunction.
Description of the drawings
Fig. 1 is the overall structure diagram of the preferred embodiment of the present invention；
Fig. 2 is the closing course schematic diagram of the preferred embodiment of the present invention；
Fig. 3 is the fully closed condition schematic diagram of the preferred embodiment of the present invention；
Fig. 4 is the breaking course schematic diagram of the preferred embodiment of the present invention；
Fig. 5 is the structure diagram of the static contact component of the present invention；
Fig. 6 is the structure diagram of the moving contact component of the present invention；
Fig. 7 is the structure diagram of the action frame of the present invention；
Fig. 8 is the structure diagram of the case of the present invention.
In figure, 1. action frames, 2. moving contact components, 3. flexible links, 4. connecting shafts, 5. moving contact springs, 6. static contact groups
Part, 7. static contact springs, 8. cases, 9. copper bars, 10. fasteners, 21. movable contact blocks, 22. moving contact pieces, 23. Interposer contact pieces,
61. fixed contact pedestal, 62. static contact pieces.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
The present invention structure of contact terminal, structure as Figure 1-Figure 8, including action frame 1, two moving contact components 2, soft company
Fitting 3, connecting shaft 4, the moving contact spring 5 of insulation, two static contact components 6, two static contact springs 7, two cases 8, two copper
Row 9 and several fasteners 10.Two moving contact components 2 are movably connected on by connecting shaft 4 on action frame 1；Moving contact spring 5 with
It is contacted between two moving contact components 2, and with two moving contact components 2；Moving contact component 2 is with flexible link 3 by tight
Firmware 10 is connected；Two cases 8 are located at 1 both sides of action frame respectively, and static contact component 6 is movably connected on case 8 by connecting shaft 4
It is interior, it can be rotated around connecting shaft 4, static contact component 6 is located in the stroke of moving contact component 2, and can be contacted in moving contact component 2；
Copper bar 9 is coupled with case 8 by fastener 10, and static contact component 6 and flexible link 3 are connected by fastener 10.Moving contact spring 5
It is isolation material with case 8.
Specifically, as shown in figure 5, moving contact component 2 includes being movably connected on the action frame 1 by connecting shaft 4
Movable contact block 21, movable contact block 21 are C-shaped, are made of two openends and the linkage section for connecting the two openends, and two dynamic
The opening of contact base 21 is oppositely arranged, and two openends of movable contact block 21 are connected separately with Interposer contact piece 23, described dynamic tactile
The linkage section of headstock 21 is connected with moving contact piece 22.
Preferably, moving contact piece 22 is one kind in rectangle, circle, abnormity, preferably rectangle；The Interposer contact piece 23 is
One kind in rectangle, circle, abnormity, preferably rectangle.
Further, the surface of the moving contact piece 22 be plane or cambered surface, preferred planar；The Interposer contact piece 23
Surface is plane or cambered surface, preferably cambered surface.When Interposer contact piece 23 is cambered surface, when two Interposer contact pieces 23 are in contact, can
Certain deformation occurs, effect will be bonded the way of contact due to plane when being both plane.
Further, 21 material of movable contact block is copper；22 material of moving contact piece is one in siller tin oxide, Agcdo
Kind；23 material of Interposer contact piece is siller tin oxide, one kind in Agcdo.
Specifically, as shown in fig. 6, static contact component 6 is quiet in case 8 including being movably connected on by the connecting shaft 4
Contact base 61, there are two static contact pieces for the side setting of relatively described moving contact piece 22 on the fixed contact pedestal 61.
Further, static contact piece 62 is one kind in rectangle, circle, abnormity, preferably rectangle；62 surface of static contact piece is
Plane or cambered surface, preferably cambered surface.When the surface of moving contact piece 22 is plane, when being contacted with the cambered surface of static contact piece 62, stationary contact
Micro deformation occur for head piece 62 be more conducive to it to contact with each other with moving contact piece 22, when structure of contact terminal is closed completely, two stationary contacts
The deformation of head piece 62 is identical.
Further, the material of fixed contact pedestal 61 is copper, and the material of the static contact piece 62 is siller tin oxide or silver oxidation
Cadmium.
Preferably, the side of static contact piece 62 is equipped with notch.
As shown in Fig. 2, the firm contact condition of structure of contact terminal for the present invention.When action frame 1 moves downward, moving contact is driven
Component 2 moves downward, and the Interposer contact 23 of two 2 lower parts of moving contact component contacts with each other, when moving contact piece 22 and static contact piece
During 62 contact, circuit conducting.Loop current direction (current direction is opposite) as shown by the arrows in figure 2, due to having on static contact piece 62
Notch, electrodynamic repulsion force is smaller between dynamic/static contact component.In moving contact component 2 and 6 closing course of static contact component, by institute
Rolling and force of sliding friction of the resistance almost all overcome between moving contact piece 22 and static contact piece 62, so action frame 1
Required operating force is small, impact energy is small；Moving contact piece 22 and static contact piece 62 can purify mutually；Simultaneously because moving contact
Component 2 is bounced small by the effect of static contact component 6 between moving contact component 2 and static contact component 6.
As shown in figure 3, the schematic diagram of the structure of contact terminal fully closed condition for the present invention.When action frame 1 moves downwardly to
During precalculated position, moving contact component 2 is closed completely with static contact component 6, and moving contact piece 22 connects completely with two static contact pieces 62
It touches, the Interposer contact piece 23 on 2 top of moving contact component contacts with each other, circuit conducting.Loop current direction as see arrows 17 in fig 3
(current direction is identical), since electric power attracts each other between moving contact component 2 and static contact component 6, contact pressure is big,
Contact resistance is small.Structure of contact terminal is in equilibrium state simultaneously, maintains the required maintenance energy of structure of contact terminal closed state can be very
It is small.
As shown in figure 4, the status diagram for structure of contact terminal breaking course.When action frame 1 moves upwards, moving contact group
23 disjunction of Interposer contact piece on 2 top of part；Action frame 1 continues up, and the Interposer contact 23 of 2 lower part of moving contact component is mutual
Contact；Action frame 1 continues up, and moving contact component 2 is disconnected with static contact component 6.Loop current side as shown in Fig. 4 arrows
To (current direction is opposite), magnetic field is generated between moving contact component 2 and static contact component 6, electric arc is acted on by electromagnetic force F, electricity
Arc is displaced outwardly and elongates, and arc extinguishing is carried out into arc-extinguishing medium；Simultaneously in the structure of contact terminal disconnection process of the present invention, due to
The effect of moving contact spring 5 and static contact spring 7, action frame 1 will be by upward component effects so that structure of contact terminal is easier to quickly
Disjunction, thus more conducively arc extinguishing.
From the above, it can be seen that the structure of contact terminal that the present invention is announced, is opened away from small, compact-sized, small, operating force
It is small, impact energy is small, maintains that suction is small, and contact bounce is small in closing course, and contact is big, contact resistance is small, contact can be with
Self-cleaning, contact are easy and fast to disjunction.
The preferred embodiment of the present invention described in detail above.It should be appreciated that those of ordinary skill in the art without
Creative work is needed according to the present invention can to conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of structure of contact terminal, which is characterized in that be movably connected on action frame relatively, by connecting shaft (4) including two positions
(1) moving contact component (2) on, two moving contact components (2) are in contact by the moving contact spring (5) of insulation, two institutes
It states and is connected by flexible link (3) between moving contact component (2)；Two are further included respectively positioned at the action frame (1) both sides
Case (8) is connected with static contact component (6) on the case (8) by connecting shaft (4), the static contact component (6) with
Moving contact component (2) position of homonymy it is corresponding and positioned at moving contact component (2) stroke in, case (8) side wall and its
Interior static contact component (6) is connected by static contact spring (7), and copper bar (9), the static contact group are connected on the case (8)
Part (6) is connected with copper bar (9) by flexible link (3).
2. a kind of structure of contact terminal as described in claim 1, which is characterized in that each moving contact component (2) is including passing through
The connecting shaft (4) is movably connected on the movable contact block (21) on the action frame (1), and the movable contact block (21) is C-shaped, institute
Two openends for stating movable contact block (21) are connected separately with Interposer contact piece (23), and the linkage section of the movable contact block (21) connects
It is connected to moving contact piece (22).
3. a kind of structure of contact terminal as claimed in claim 2, which is characterized in that moving contact piece (22) shape is rectangle, circle
Shape or abnormity, Interposer contact piece (23) shape are rectangle, circle or abnormity.
4. a kind of structure of contact terminal as claimed in claim 2 or claim 3, which is characterized in that moving contact piece (22) surface is plane
Or cambered surface, Interposer contact piece (23) surface are plane or cambered surface.
5. a kind of structure of contact terminal as claimed in claim 2, which is characterized in that the material of the movable contact block (21) is copper, institute
The material of moving contact piece (22) is stated as siller tin oxide or Agcdo, the material of the Interposer contact piece (23) for siller tin oxide or
Agcdo.
6. a kind of structure of contact terminal as claimed in claim 2, which is characterized in that the static contact component (6) is described including passing through
Connecting shaft (4) is movably connected on the fixed contact pedestal (61) in case (8), relatively described moving contact piece on the fixed contact pedestal (61)
(22) there are two static contact pieces (62) for side setting.
7. a kind of structure of contact terminal as claimed in claim 6, which is characterized in that static contact piece (62) shape is rectangle, circle
Shape or abnormity.
8. a kind of structure of contact terminal as claimed in claims 6 or 7, which is characterized in that the surface of the static contact piece (62) is flat
Face or cambered surface.
9. a kind of structure of contact terminal as claimed in claim 6, which is characterized in that the material of the fixed contact pedestal (61) is copper, institute
The material for stating static contact piece (62) is siller tin oxide or Agcdo.
10. a kind of structure of contact terminal as described in claim 1, which is characterized in that the side of the static contact piece (62), which is equipped with, to be lacked
Mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200372.7A CN108231441B (en) | 2018-03-12 | 2018-03-12 | Contact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200372.7A CN108231441B (en) | 2018-03-12 | 2018-03-12 | Contact structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108231441A true CN108231441A (en) | 2018-06-29 |
| CN108231441B CN108231441B (en) | 2024-02-20 |
Family
ID=62658311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810200372.7A Active CN108231441B (en) | 2018-03-12 | 2018-03-12 | Contact structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108231441B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545586A (en) * | 2019-02-01 | 2019-03-29 | 西安开天铁路电气股份有限公司 | A kind of structure of contact terminal |
| CN112883613A (en) * | 2021-02-08 | 2021-06-01 | 哈尔滨工业大学 | Lower limit design method for impact energy of moving contact of direct-acting electromagnetic contactor |
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| US6486423B1 (en) * | 2000-06-07 | 2002-11-26 | Methode Electronics, Inc. | Sliding contact mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545586A (en) * | 2019-02-01 | 2019-03-29 | 西安开天铁路电气股份有限公司 | A kind of structure of contact terminal |
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| CN112883613A (en) * | 2021-02-08 | 2021-06-01 | 哈尔滨工业大学 | Lower limit design method for impact energy of moving contact of direct-acting electromagnetic contactor |
| CN112883613B (en) * | 2021-02-08 | 2022-09-02 | 哈尔滨工业大学 | Lower limit design method for impact energy of moving contact of direct-acting electromagnetic contactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108231441B (en) | 2024-02-20 |
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