CN208061879U - A kind of contact mechanism - Google Patents
A kind of contact mechanism Download PDFInfo
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- CN208061879U CN208061879U CN201820333824.4U CN201820333824U CN208061879U CN 208061879 U CN208061879 U CN 208061879U CN 201820333824 U CN201820333824 U CN 201820333824U CN 208061879 U CN208061879 U CN 208061879U
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- contact
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- moving
- moving contact
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Abstract
A kind of contact mechanism disclosed by the utility model, moving contact component that is opposite including two positions, being movably connected on by connecting shaft on action frame, two moving contact components are in contact by the moving contact spring that insulate, and are connected by flexible link between two moving contact components；Further include two cases for being located at the action frame both sides, static contact component is connected with by connecting shaft on the case, in corresponding with the moving contact component position of the homonymy and stroke positioned at moving contact component of the static 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 contact mechanism of the utility model is opened away from small, compact-sized, small, and operating force is small, impact energy is small, maintains suction 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 utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of contact mechanism.
Background technology
Having contact low-voltage electrical apparatus at present, mainly common contact mechanism 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.
For the defect of the above common contact mechanism, be highly desirable design one kind can self-cleaning, open away from small, small, electric
The contact mechanism that dynamic stability is high, impact energy is small.
Utility model content
It is small, open away from small the purpose of this utility model is to provide a kind of contact mechanism, impact energy is reduced,
Improve electrodynamical stability.
Technical solution used by the utility model is：A kind of contact mechanism, including two positions it is opposite, pass through connecting shaft
The moving contact component being movably connected on action frame, two moving contact components are in contact by the moving contact spring of insulation, and two
It is connected by flexible link between a moving contact component；Further include two cases for being located at the action frame both sides,
Static contact component, the moving contact component position of the static contact component and homonymy are connected with by connecting shaft on the case
In corresponding and stroke positioned at moving contact component, the housing sidewall passes through static contact spring phase with the static contact component in it
Even, it is connected with copper bar on the case, the static contact component is connected with copper bar by flexible link.
The utility model is also characterized by
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 open ends 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.
Moving contact piece surface is a plane or an arc surface, and Interposer contact piece surface is a plane or an arc surface.
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 the 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 a plane or an arc surface.
The side of the static contact piece is equipped with notch.
The utility model has the beneficial effects that：A kind of contact mechanism of the utility model is opened away from small, compact-sized, volume
Small, operating force is small, impact energy is small, maintains suction small, and contact bounce is small in closing course, and contact is big, contact resistance is small,
Contact can be easy and fast to disjunction with self-cleaning, contact.
Description of the drawings
Fig. 1 is the overall structure diagram of a preferred embodiment of the utility model；
Fig. 2 is the closing course schematic diagram of a preferred embodiment of the utility model；
Fig. 3 is the fully closed condition schematic diagram of a preferred embodiment of the utility model；
Fig. 4 is the breaking course schematic diagram of a preferred embodiment of the utility model；
Fig. 5 is the structural schematic diagram of the static contact component of the utility model；
Fig. 6 is the structural schematic diagram of the moving contact component of the utility model；
Fig. 7 is the structural schematic diagram of the action frame of the utility model；
Fig. 8 is the structural schematic diagram of the case of the utility model.
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 implementation mode
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The contact mechanism of the utility model, structure is as Figure 1-Figure 8, including action frame 1, two moving contact components 2,
Flexible link 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
A copper bar 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 and between two moving contact components 2, and contacted with two moving contact components 2；Moving contact component 2 is logical with flexible link 3
Fastener 10 is crossed to be connected；Two cases 8 are located at 1 both sides of action frame, and static contact component 6 is movably connected on by connecting shaft 4
It in case 8, can be rotated around connecting shaft 4, static contact component 6 is located in the stroke of moving contact component 2, and can be in moving contact component 2
Contact；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.It is dynamic to touch
Head spring 5 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 open ends and the linkage section for connecting the two open ends, and two dynamic
The opening of contact base 21 is oppositely arranged, and two open ends 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 is a plane or an arc surface, preferred planar；The Interposer contact piece 23
Surface is a plane or an arc surface, preferably cambered surface.When Interposer contact piece 23 is cambered surface, when two Interposer contact pieces 23 are in contact, can
Occur certain deformation, effect will due to both for plane when plane be bonded the way of contact.
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 one kind in siller tin oxide, Agcdo.
Specifically, as shown in fig. 6, static contact component 6 include be movably connected on by the connecting shaft 4 it is quiet in case 8
Contact base 61, there are two static contact pieces for the side setting of the moving contact piece 22 relatively 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 contact mechanism 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, for the rigid contact condition of contact mechanism of the utility model.When action frame 1 moves downward, drive dynamic
Contact assembly 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 stationary contact
When head piece 62 contacts, circuit conducting.Loop current direction (current direction is opposite) as shown by the arrows in figure 2, due to static contact piece 62
Upper jagged, electrodynamic repulsion force is smaller between dynamic/static contact component.In moving contact component 2 and 6 closing course of static contact component, by
In rolling and force of sliding friction of the resistance almost all overcome between moving contact piece 22 and static contact piece 62, so action
1 required operating force of frame is small, impact energy is small；Moving contact piece 22 and static contact piece 62 can purify mutually；Simultaneously because dynamic
Contact assembly 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 contact mechanism fully closed condition for the utility model.When action frame 1 is transported downwards
When moving to precalculated position, moving contact component 2 is closed completely with static contact component 6, and moving contact piece 22 and two static contact pieces 62 are complete
The Interposer contact piece 23 of Full connected, 2 top of moving contact component contacts with each other, circuit conducting.Loop current is square as see arrows 17 in fig 3
To (current direction is identical), since electric power attracts each other between moving contact component 2 and static contact component 6, contact pressure
Greatly, contact resistance is small.Contact mechanism is in equilibrium state simultaneously, maintains the required maintenance energy of contact mechanism closed state can be non-
It is often small.
As shown in figure 4, for the status diagram of contact mechanism 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, into carrying out arc extinguishing in arc-extinguishing medium；Simultaneously in the contact mechanism disconnection process of the utility model,
Due to the effect of moving contact spring 5 and static contact spring 7, action frame 1 will be by upward component effect so that contact mechanism is easier to
Quick disjunction, thus more conducively arc extinguishing.
From the above, it can be seen that the contact mechanism that the utility model is announced, is opened away from small, compact-sized, small, operation
Power is small, impact energy is small, maintains suction small, and contact bounce is small in closing course, and contact is big, contact resistance is small, and contact can
With self-cleaning, contact is easy and fast to disjunction.
The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain
Available technical solution is tested, it all should be in the protection domain being defined in the patent claims.
Claims (8)
1. a kind of contact mechanism, 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)；Further include two and is located 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 contact mechanism as described in claim 1, which is characterized in that each moving contact component (2) includes 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 open ends 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 contact mechanism 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 contact mechanism 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 a plane or an arc surface.
5. a kind of contact mechanism as claimed in claim 2, which is characterized in that the static contact component (6) includes by described
Connecting shaft (4) is movably connected on the fixed contact pedestal (61) in case (8), the relatively described moving contact piece on the fixed contact pedestal (61)
(22) there are two static contact pieces (62) for side setting.
6. a kind of contact mechanism as claimed in claim 5, which is characterized in that static contact piece (62) shape is rectangle, circle
Shape or abnormity.
7. such as a kind of contact mechanism described in claim 5 or 6, which is characterized in that the surface of the static contact piece (62) is flat
Face or cambered surface.
8. a kind of contact mechanism 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 |
|---|---|---|---|
| CN201820333824.4U CN208061879U (en) | 2018-03-12 | 2018-03-12 | A kind of contact mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820333824.4U CN208061879U (en) | 2018-03-12 | 2018-03-12 | A kind of contact mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208061879U true CN208061879U (en) | 2018-11-06 |
Family
ID=63990384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820333824.4U Active CN208061879U (en) | 2018-03-12 | 2018-03-12 | A kind of contact mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208061879U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231441A (en) * | 2018-03-12 | 2018-06-29 | 西安开天铁路电气股份有限公司 | A kind of structure of contact terminal |
| CN109950064A (en) * | 2019-03-11 | 2019-06-28 | 西安开天铁路电气股份有限公司 | A kind of contact with grinding function |
-
2018
- 2018-03-12 CN CN201820333824.4U patent/CN208061879U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231441A (en) * | 2018-03-12 | 2018-06-29 | 西安开天铁路电气股份有限公司 | A kind of structure of contact terminal |
| CN108231441B (en) * | 2018-03-12 | 2024-02-20 | 西安开天铁路电气股份有限公司 | Contact structure |
| CN109950064A (en) * | 2019-03-11 | 2019-06-28 | 西安开天铁路电气股份有限公司 | A kind of contact with grinding function |
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