A kind of relay double-flexibility contact structure
Technical field
This utility model is related to a kind of relay, more particularly to a kind of relay double-flexibility contact structure.
Background technology
In capacitance reactive compensation device, typically require that pull up time is the smaller the better, during relay closure
Bounce time be even more require within 200 microseconds, this requires that the contact system of relay will have enough flexibilities could expire
Foot requires.Conventional relays are that stationary contact is riveted on static contact spring piece, and static contact spring piece is fixed on pedestal, and stationary contact and quiet spring are all solid
Fixed, there is no the space of activity.When relay closes, movable contact quickly moves to stationary contact, after both contacts, because of stationary contact
Fixing, movable contact will rebound.Movable contact speed is bigger, and bounce time is also bigger.When movable contact movement velocity requires larger,
Just cannot ensure relay bounce time within 200 microseconds.
Therefore, the defect how solving above-mentioned prior art presence becomes the direction of this skilled person effort.
Utility model content
The purpose of this utility model is exactly to provide a kind of relay double-flexibility contact structure, can be fully solved above-mentioned existing skill
The weak point of art.
The purpose of this utility model is realized by following technical proposals:
A kind of relay double-flexibility contact structure, including pedestal, static contact spring piece, stationary contact and movable contact it is characterised in that:Also
Including lead-out tablet, lead-out tablet one end and base internal wall are connected, and the other end stretches out pedestal, and static contact spring piece one end is riveted on lead-out tablet
On, and riveting point is located at outside pedestal, the static contact spring piece other end is free end, and rivets stationary contact, and described stationary contact is located at pedestal
The interior position corresponding with movable contact.
Compared with prior art, the beneficial effects of the utility model are:Structure is simple, and reasonable in design, static contact spring piece has soft
Degree, stationary contact has activity space, when movable contact movement velocity requires larger, can guarantee that relay bounce time in 200 microseconds
Within.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the attachment structure schematic diagram between static contact spring piece, stationary contact and lead-out tablet.
Specific embodiment
With reference to specific embodiments and the drawings, this utility model is further described.
As depicted in figs. 1 and 2, a kind of relay double-flexibility contact structure, including pedestal 2, static contact spring piece 3, stationary contact 4, moves
Contact 5 and lead-out tablet 6.Described lead-out tablet 6 is horizontally disposed with, and its one end is connected with pedestal 2 inwall, and the other end stretches out pedestal 2.
Static contact spring piece 3 one end is riveted on lead-out tablet 6, and riveting point 7 is located at outside pedestal 2, and static contact spring piece 3 other end is free end, and riveting
Connect stationary contact 4, this stationary contact 4 is located at corresponding with movable contact 5 position in pedestal 2.The structure of described movable contact 5 is existing skill
Art, will not be described here.
When movable contact 5 closes to stationary contact 4, because static contact spring piece 3 has certain flexibility, movable contact 5 contacts stationary contact 4
Afterwards, two contacts continue the stroke of a small quantity that moves together, then return together, therefore, it can be significantly reduced relay and close
Bounce time during conjunction.On the other hand, in the present embodiment, static contact spring piece 3 and the riveting point 7 of lead-out tablet 6 are located at outside pedestal, this
The structure planting innovation makes static contact spring piece 3 have enough length, and the static contact spring piece 3 of sufficient length just has enough flexibilities, permissible
Reduce bounce time during relay closure further.Therefore, the relay with this contact structure can move in movable contact 5
It is ensured that relay bounce time is within 200 microseconds when rate request is larger.
Bounce time during above-mentioned relay closure can be determined by the thickness of static contact spring piece 3, and the thickness of static contact spring piece 3
Relay temperature rise effect can be directly influenced.Therefore, select suitable static contact spring piece thickness, the same of bounce time can met
When, also meet relay temperature increase requirement.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in this utility model
Protection domain within.