CN209374284U - Structure of contact terminal - Google Patents
Structure of contact terminal Download PDFInfo
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- CN209374284U CN209374284U CN201920182638.XU CN201920182638U CN209374284U CN 209374284 U CN209374284 U CN 209374284U CN 201920182638 U CN201920182638 U CN 201920182638U CN 209374284 U CN209374284 U CN 209374284U
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Abstract
Structure of contact terminal disclosed by the utility model, including action frame and two static contact components, it is arranged with a moving contact component respectively by two major connectors on action frame, moving contact spring is arranged on major connector, moving contact component and static contact component position are opposite, action frame two sides are also symmetrically arranged with a point arc static contact component, a point arc moving contact component is arranged with by connector bar on action frame, it is arranged with a point arc moving contact spring on connector bar, divides arc moving contact component opposite with arc static contact component position is divided.The utility model is using dividing the dynamic and static contact assembly of arc to contact, and since there are certain angles for the two, electrodynamic repulsion force is smaller in closing course, and contact bounce is small, and then dynamic and static contact assembly is connected again, and the two will not generate electric arc, therefore will not ablation contact blade.Its with it is compact-sized, open away from small, electrodynamic repulsion force is small, contact bounce is small in closing course, contact pressure is big, contact resistance is small, contact can be with self-cleaning, the advantages of contact is easy and fast to disjunction.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of structure of contact terminal.
Background technique
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 is rolling and sliding friction in interrupting process, can remove contact surface oxide；It connects
Touch pressure is big, electrodynamical stability is high.Have the disadvantage that: only one fracture is opened away from big, and electric appliance volume is big；Contact closure impact
Energy is big, and ablation is serious in contact breaking course, and mechanical life is short with electrical endurance.
Bridge architecture has the advantage that two series connection fractures, two effective arc extinguishing areas；It opens away from small, electrical structure is compact；Touching
Head closure impact energy is small.Have the disadvantage that: contact is unable to self-cleaning, and contact pressure is small, and electrodynamical stability is low, contact disjunction
Ablation is serious in the process, and electrical endurance is short.
For the defect of the above common structure of contact terminal, it is highly desirable to design one kind and opens away from small, small in size, electrodynamical stability
Structure of contact terminal high, impact energy is small, mechanically and electrically the service life is grown.
Utility model content
It is small in size, open away from small the purpose of this utility model is to provide a kind of structure of contact terminal, impact energy is reduced,
Electrodynamical stability is improved, breaking capacity is improved, extends the contact service life.
The technical scheme adopted by the utility model is structure of contact terminal, including action frame and it is symmetrically disposed on described dynamic
Make the static contact component of frame two sides,
It is arranged with a moving contact component respectively by two major connectors on the action frame, is covered on the major connector
Equipped with moving contact spring, the static contact component position of the moving contact component and the action frame two sides is opposite,
The action frame two sides are also symmetrically arranged with a point arc static contact component, are arranged on the action frame by connector bar
There is a point arc moving contact component, a point arc moving contact spring is arranged on the connector bar, it is described that arc moving contact component is divided to move with described
That makees frame two sides divides arc static contact component position opposite.
The utility model is also characterized by
Each moving contact component includes movable contact block and the moving contact for being set to movable contact block two sides lower end
Piece；
Each static contact component includes fixed contact pedestal and two static contact pieces, and described two static contact pieces are set to
The position of the respective ipsilateral moving contact piece of two moving contact components of face on the fixed contact pedestal.
The shape of the moving contact piece is rectangle or circle, and the shape of the static contact piece is rectangle or circle.
Moving contact piece surface is a plane or an arc surface, and static contact piece surface is a plane or an arc surface.
The moving contact piece and the static contact piece are siller tin oxide contact blade or silver cadmium oxide contact piece.
Described point of arc moving contact component includes dividing arc movable contact block and being set to described to divide arc movable contact block two sides lower end
Divide arc moving contact piece,
It is each described that arc static contact component is divided to include dividing arc fixed contact pedestal and being set to described to divide face on arc fixed contact pedestal
The position of described point of arc moving contact piece.
Described point of arc moving contact plate shape is rectangle or circle, described that arc static contact plate shape is divided to be rectangle or circle.
Described point of arc moving contact piece surface is a plane or an arc surface, described that arc static contact piece surface is divided to be a plane or an arc surface.
Described point of arc moving contact piece and it is described divide arc static contact piece be copper-tungsten contact blade, carbon tungsten silver contact piece, silver
Tin oxide contact blade or silver cadmium oxide contact piece.
The beneficial effects of the utility model are: the structure of contact terminal of the utility model, using dividing the dynamic and static contact assembly of arc advanced
Row contact, exerts a force, electrodynamic repulsion force is smaller in closing course, contact due to the two there are certain angle and by spring
It bounces small, then dynamic and static contact assembly is connected again, and the two will not generate electric arc, therefore will not ablation contact blade.It has
It is compact-sized, open away from small, electrodynamic repulsion force is small, contact bounce is small in closing course, contact pressure is big, contact resistance is small, contact can
With self-cleaning, the advantages of contact is easy and fast to disjunction.
Detailed description of the invention
Fig. 1 is the overall structure diagram of a preferred embodiment of the utility model；
Fig. 2 is the initial closed state schematic diagram of a preferred embodiment of the utility model；
Fig. 3 is that the preferred embodiment of the utility model is closed completely process schematic；
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 for dividing arc static contact component of the utility model；
Fig. 7 is the structural schematic diagram for dividing arc moving contact component of the utility model；
Fig. 8 is the structural schematic diagram of the moving contact component of the utility model.
In figure, 1. action frames, 2. link blocks, 3. static contact components, 4. moving contact components, 5. moving contact springs, 6. points of arcs are dynamic
Contact spring, 7. points of arc moving contact components, 8. points of arc static contact components, 9. major connectors, 10. connector bars, 31. fixed contact pedestals,
32. static contact piece, 41. movable contact blocks, 42. moving contact pieces, 71. points of arc movable contact blocks, 72. points of arc moving contact pieces, 81. points of arcs are quiet
Contact base, 82. points of arc static contact pieces.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of structure of contact terminal of the utility model, structure is as Figure 1-Figure 8, including action frame 1, two link blocks 2,
Two static contact components 3, two moving contact components 4, two moving contact springs 5, two points of arc moving contact springs 6, the dynamic touching of a point of arc
Head assembly 7, two points of arc static contact components 8, two major connectors 9, two connector bars 10.Two moving contact components 4 are distinguished
It is connected on action frame 1 by a major connector 9, and corresponding with static contact component 3；Moving contact spring 5 is sheathed on big connection
On bar 9 and between 9 top of moving contact component 4 and major connector.It is divided to arc moving contact component 7 to pass through two connector bars 10
It is connected on action frame 1, and divides arc static contact component 8 corresponding with action frame 1 two sides；Arc moving contact spring 6 is divided to be sheathed on small
In connecting rod 10 and in dividing between arc moving contact component 7 and connector bar 10.Link block 2 is provided on static contact component 3,
Arc static contact component 8 is divided to be connected on link block 2.
Specifically, as shown in figure 5, static contact component 3 includes a fixed contact pedestal 31 and two static contact pieces 32；Such as Fig. 6
Shown, moving contact component 4 includes a movable contact block 41 and the moving contact piece 42 on the downside of 41 both ends of movable contact block；Static contact
Piece 32 is corresponded with two ipsilateral moving contact pieces 42 respectively.
Further, static contact piece 32 is one of rectangle, circle, abnormity, preferably rectangle；Moving contact piece 42 is square
One of shape, circle, abnormity, preferably rectangle.
Further, the surface of static contact piece 32 is a plane or an arc surface, preferred planar；The surface of moving contact piece 42 is plane
Or cambered surface, preferred cambered surface.Or the surface of static contact piece 32 be cambered surface, moving contact piece 42 surface be that plane can also.Moving contact
When piece 42 is cambered surface, when being in contact with static contact contact blade 32, certain deformation can occur, both it is flat that effect, which is better than,
Plane when face is bonded the way of contact.
Further, fixed contact pedestal 31 is copper contact seat；Static contact piece 32 is siller tin oxide contact blade, silver cadmium oxide contact
One of piece.Movable contact block 41 is copper contact seat；One in 42 siller tin oxide contact blade of moving contact piece, silver cadmium oxide contact piece
Kind.
Specifically, as shown in fig. 7, being divided to arc moving contact component 7 to include one is divided to arc movable contact block 71 and two are located at
Divide on the downside of 7 both ends of arc movable contact block and divides arc moving contact piece 72；As shown in figure 8, arc static contact component 8 is divided to include that a point of arc is quiet
Contact base 81 and a point of arc static contact piece 82, divide arc moving contact piece 72 corresponding with arc static contact 82 positions of piece are divided.
Further, dividing 72 shape of arc moving contact piece is one of rectangle, circle, abnormity, preferably rectangle；Divide arc stationary contact
Head piece 82 is one of rectangle, circle, abnormity, preferably rectangle.
Further, 72 surface of arc moving contact piece is divided to be a plane or an arc surface, preferably cambered surface；Point 82 surface of arc static contact piece is
Plane or cambered surface, preferably cambered surface.Or the surface of arc moving contact piece 72 is divided to be plane, the surface of arc static contact piece 82 is divided to be cambered surface
It can also.When the surface for dividing arc moving contact piece 72 is cambered surface, with divide arc static contact piece 82 plane contact when, divide arc moving contact piece
72 with divide arc static contact piece 82 micro deformation occurs to be more conducive to it to contact with each other.
Further, dividing arc movable contact block 71 is copper contact seat, and moving contact piece 72 is copper-tungsten contact blade, carbon tungsten silver
Contact blade, siller tin oxide contact blade or silver cadmium oxide contact piece.Dividing arc fixed contact pedestal 81 is copper contact seat, and static contact piece 82 is copper
Tungsten alloy contact blade, carbon tungsten silver contact piece, siller tin oxide contact blade or silver cadmium oxide contact piece.
As shown in Fig. 2, initially contacting the schematic diagram of state for the structure of contact terminal of the utility model.When action frame 1 is transported downwards
When dynamic, drive divides arc moving contact component 7 to move downward, when dividing arc moving contact piece 72 and arc static contact piece 82 being divided to contact, circuit
Conducting.Due to dividing arc moving contact component 7 and dividing arc static contact component 8 there are certain angle, the electrodynamic repulsion force in closing course
It is smaller, and in the case where dividing 6 compression force of arc moving contact spring, spring appropriate can reduce.
As shown in figure 3, the schematic diagram of the structure of contact terminal fully closed condition for the utility model.When action frame 1 is transported downwards
When moving to predetermined position, divides arc moving contact component 7 to be closed completely with arc static contact component 8 is divided, divide arc moving contact spring 6 to be compressed to pre-
Positioning is set；Moving contact component 4 is closed completely with static contact component 3, and moving contact piece 42 and two static contact pieces 32 completely attach to, and is returned
Road conducting, moving contact spring 5 are compressed to predetermined position.Major loop is divided into two circuits in parallel, the electrodynamic repulsion force in closing course
Smaller, spring appropriate can reduce, and contact resistance is small；Due to dividing arc moving contact component 7 and having divided arc static contact component 8
Circuit is connected, is not in ablation phenomen in moving contact component 4 and 3 closing course of static contact component.
As shown in figure 4, being the status diagram of structure of contact terminal breaking course.When action frame 1 moves upwards, moving contact piece
42 with 32 disjunction of static contact piece, circuit is still held on；Action frame 1 continues up, and divides arc moving contact piece 72 and divides arc
Divide 82 disjunction of arc static contact piece, circuit generation electric arc, which enters, carries out arc extinguishing in arc-control device, final circuit disjunction.
Since moving contact component 4 and static contact component 3 will not generate electric arc in connection and breaking course, so will not
Ablation moving contact piece 42 and static contact piece 32.
It can be seen that the structure of contact terminal that the utility model is announced from the above embodiments course of work, open away from small, structure is tight
Gather, electrodynamic repulsion force it is small, contact bounce is small in closing course, and contact pressure is big, contact resistance is small, and contact can be with self-cleaning, and contact is easy
In quick disjunction.
The preferred embodiments of the present invention have been 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 according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (9)
1. structure of contact terminal, which is characterized in that including action frame and it is symmetrically disposed on the static contact components of the action frame two sides,
It is arranged with a moving contact component respectively by two major connectors on the action frame, is arranged on the major connector
The static contact component position of moving contact spring, the moving contact component and the action frame two sides is opposite,
The action frame two sides are also symmetrically arranged with a point arc static contact component, are arranged with point on the action frame by connector bar
Arc moving contact component is arranged with a point arc moving contact spring on the connector bar, described to divide arc moving contact component and the action frame
Two sides divide arc static contact component position opposite.
2. structure of contact terminal as described in claim 1, which is characterized in that each moving contact component include movable contact block and
It is set to the moving contact piece of movable contact block two sides lower end；
Each static contact component includes fixed contact pedestal and two static contact pieces, and described two static contact pieces are set to described
The position of the respective ipsilateral moving contact piece of two moving contact components of face on fixed contact pedestal.
3. structure of contact terminal as claimed in claim 2, which is characterized in that the shape of the moving contact piece is rectangle or circle, institute
The shape for stating static contact piece is rectangle or circle.
4. structure of contact terminal as claimed in claim 2 or claim 3, which is characterized in that moving contact piece surface is a plane or an arc surface, institute
Static contact piece surface is stated to be a plane or an arc surface.
5. structure of contact terminal as claimed in claim 2, which is characterized in that the moving contact piece and the static contact piece aoxidize for silver
Tin contact blade or silver cadmium oxide contact piece.
6. structure of contact terminal as described in claim 1, which is characterized in that described that arc moving contact component is divided to include dividing arc movable contact block
And be set to it is described divide arc movable contact block two sides lower end divide arc moving contact piece,
Dividing arc static contact component described in each includes dividing arc fixed contact pedestal and being set to described divide on arc fixed contact pedestal described in face
Divide the position of arc moving contact piece.
7. structure of contact terminal as claimed in claim 6, which is characterized in that it is described to divide arc moving contact plate shape for rectangle or circle,
Described point of arc static contact plate shape is rectangle or circle.
8. structure of contact terminal as claimed in claims 6 or 7, which is characterized in that described that arc moving contact piece surface is divided to be plane or arc
Face, it is described that arc static contact piece surface is divided to be a plane or an arc surface.
9. structure of contact terminal as claimed in claim 6, which is characterized in that described to divide arc moving contact piece and described divide arc static contact piece
For copper-tungsten contact blade, carbon tungsten silver contact piece, siller tin oxide contact blade or silver cadmium oxide contact piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920182638.XU CN209374284U (en) | 2019-02-01 | 2019-02-01 | Structure of contact terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920182638.XU CN209374284U (en) | 2019-02-01 | 2019-02-01 | Structure of contact terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209374284U true CN209374284U (en) | 2019-09-10 |
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ID=67827227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920182638.XU Active CN209374284U (en) | 2019-02-01 | 2019-02-01 | Structure of contact terminal |
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| CN (1) | CN209374284U (en) |
Cited By (1)
| 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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2019
- 2019-02-01 CN CN201920182638.XU patent/CN209374284U/en active Active
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 |
| CN109545586B (en) * | 2019-02-01 | 2024-04-16 | 西安开天铁路电气股份有限公司 | Contact structure |
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