Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiency of above-mentioned prior art, and a kind of contact assembly contact stabilization, big current flowing, the sensitive electromagnetic relay that has locking mechanism reliably are provided.
According to a kind of electromagnetic relay that has locking mechanism provided by the invention, comprise a housing, be installed in electromagnetic drive component, kick mechanism and contact assembly in the described housing, described electromagnetic drive component drives described contact assembly action by described kick mechanism, described kick mechanism comprises driver part that drives described contact assembly action and the Lock Part that described driver part is locked, and described electromagnetic drive component drives described Lock Part action.
Also have following attached technical characterictic according to a kind of electromagnetic relay that has locking mechanism provided by the invention:
Described kick mechanism comprises a holder, is installed in bridge plate and dropout frame on the described holder, described dropout frame can lock described bridge plate, the part of described bridge plate matches with described contact assembly, drive described contact assembly action, the part of described dropout frame matches with described electromagnetic drive component, drives described dropout frame action by described electromagnetic drive component.
Described bridge plate is installed in rotation on the top of described holder by the bridge plate bearing pin, thereby described bridge plate is divided into bridge plate head and bridge plate afterbody, and described bridge plate head matches with described contact assembly; Described dropout frame is installed in rotation on the top of described holder by dropout frame bearing pin, thereby described dropout frame is divided into dropout frame head and dropout frame afterbody, and described dropout frame afterbody matches with described electromagnetic drive component.
The middle part of described dropout frame is formed with grab, is formed with fixture block on the described bridge plate, and described dropout frame and described bridge plate are in rotation process, and described fixture block snaps in the described grab, rotates thereby make described dropout frame limit described bridge plate.
On the described dropout frame resetting device is installed, described resetting device drives described dropout frame and rotates around described locking bearing pin.
Also include a panel assembly that is installed in described case top, described panel assembly comprises panel, is installed in start button and stop button on the described panel, described start button matches with the bridge plate afterbody of described bridge plate, promoting described bridge plate rotates around described bridge plate bearing pin, described stop button matches with the dropout frame head of described dropout frame, promotes described dropout frame and rotates around described locking bearing pin.
Described electromagnetic drive component comprises solenoid, by the armature of described solenoid adhesive with spur the extension spring that described armature resets, described armature matches with the dropout frame head of described dropout frame.
Described contact assembly comprises the fixed contact holder that is fixed in the described housing, be fixed on fixed contact on the described fixed contact holder, be installed in the described fixed contact holder and slide plate and be installed in moving contact on the described slide plate slidably, the bridge plate afterbody of described bridge plate matches with described slide plate, drive described slide plate slides, described moving contact and described fixed contact are contacted.
On the described slide plate back-moving spring is installed, support spring is installed below each described moving contact.
On described start button and/or the described stop button feel mechanism is installed.
Compared with prior art has following advantage according to a kind of electromagnetic relay that has locking mechanism provided by the invention: at first, contact assembly of the present invention drives by driver part, and driver part locks by Lock Part, electromagnetic drive component drives the Lock Part action, thereby controlling and driving parts action indirectly, therefore, driver part can apply bigger power to contact assembly, make contact assembly have bigger contact force, satisfy the requirement of big electric current, simultaneously, electromagnetic drive component need not bigger power can drive the Lock Part action, discharge driver part with this, need not to be provided with electromagnetic drive component, improved sensitivity of the present invention with big magnetic force; Secondly, the structure that the fixture block of the present invention by grab on the dropout frame and bridge plate matches locks, and is simple in structure, easy to use.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of embodiment that has the electromagnetic relay of locking mechanism that provides in the present invention, comprise a housing 1, be installed in electromagnetic drive component 3, kick mechanism 4 and contact assembly 5 in the described housing 1, described electromagnetic drive component 3 is by described contact assembly 5 actions of described kick mechanism's 4 drivings, described kick mechanism 4 comprises driver part that drives described contact assembly 5 actions and the Lock Part that described driver part is locked, and described electromagnetic drive component 3 drives described Lock Part action.Driver part among the present invention is used for 5 motions of contact-actuating assembly, and contact assembly 5 is switched on or switched off.And Lock Part is used for making it be in stable state the driver part locking, thereby realizes the Long contact time of contact assembly 5.Electromagnetic drive component 3 of the present invention is not directly to drive driver part motion and the action of directly controlling contact assembly 5, and electromagnetic drive component 3 is to drive the Lock Part action, by the indirect controlling and driving parts action of Lock Part.Therefore, described driver part can not be subjected to the influence of electromagnetic drive component 3 to the size of contact assembly 5 applied forces, i.e. the suction size of electromagnetic drive component 3 contact force of influencing contactor assembly 5 not.Like this, the driver part among the present invention can apply bigger power to contact assembly 5, satisfies the needs of the big electric current of contact assembly 5 circulations with this.Because Lock Part can make driver part be in stable state, therefore, the contact of contact assembly 5 is more steady, and it can not be subjected to the influence of current fluctuation.The global reliability and the fail safe of product are provided, have prolonged useful life.Electromagnetic drive component 3 is for the driving of Lock Part, only can make Lock Part and driver part be in locking and discharge two kinds of operating states, and the actuating force of 3 pairs of Lock Parts of electromagnetic drive component can be adjusted arbitrarily, not limited by the performance requirement of contact assembly 5, make the sensitivity of product to adjust arbitrarily, satisfy the products of different specifications demand.
Referring to Fig. 2 to Fig. 9, in the foregoing description that the present invention provides, described kick mechanism 4 comprises a holder 41, is installed in bridge plate 42 and dropout frame 43 on the described holder 41, described dropout frame 43 can lock described bridge plate 42, the part of described bridge plate 42 matches with described contact assembly 5, drive described contact assembly 5 actions, the part of described dropout frame 43 matches with described electromagnetic drive component 3, drives described dropout frame 43 actions by described electromagnetic drive component 3.Wherein, described bridge plate 42 belongs to driver part, and described dropout frame 43 belongs to Lock Part.
Referring to Fig. 3, Fig. 4, Fig. 9 and Figure 11, in the foregoing description that the present invention provides, described bridge plate 42 is installed in rotation on the top of described holder 41 by bridge plate bearing pin 421, thereby described bridge plate 42 is divided into bridge plate head 422 and bridge plate afterbody 423, and described bridge plate head 422 matches with described contact assembly 5.In the said structure, described bridge plate head 422 and bridge plate afterbody 423 lay respectively at the both sides of described bridge plate bearing pin 421, so that described bridge plate head 422 and bridge plate afterbody 423 rotate around described bridge plate bearing pin 421.
Referring to Fig. 3, Fig. 4, Fig. 9 and Figure 11, in the foregoing description that the present invention provides, described dropout frame 43 is installed in rotation on the top of described holder 41 by dropout frame bearing pin 431, thereby described dropout frame 43 is divided into dropout frame head 432 and dropout frame afterbody 433, and described dropout frame afterbody 433 matches with described electromagnetic drive component 3.In the said structure, described dropout frame head 432 and dropout frame afterbody 433 lay respectively at the both sides of described dropout frame bearing pin 431, so that described dropout frame head 432 and dropout frame afterbody 433 rotate around described dropout frame bearing pin 431.Bridge plate bearing pin 421 among the present invention is adjacent with described dropout frame bearing pin 431, and oblique setting guarantees that so described bridge plate 42 and dropout frame 43 are not concentric rotations.
Referring to Fig. 3, Fig. 4, Fig. 9 and Figure 11, in the foregoing description that the present invention provides, the middle part of described dropout frame 43 is formed with grab 434, and described grab 434 extends upward a segment distance from the middle part of described dropout frame 43, forms a hook portion then in the end.Be formed with fixture block 424 on the described bridge plate 42, described fixture block 424 is yearned for the extension certain distance near bridge plate afterbody 423 places of described bridge plate 42, also is formed with a hook portion in the end, and described grab 434 is stuck on the extension of described fixture block 424.The hook portion of described fixture block 424 plays spacing effect.Described dropout frame 43 and described bridge plate 42 are in rotation process, and described fixture block 424 snaps in the described grab 434, thereby the described bridge plate 42 of described dropout frame 43 restrictions is rotated.The present invention is provided with said structure, can make described dropout frame 43 with described bridge plate 42 lockings, and it can not be rotated further, and the place reaches stable state at certain position.When dropout frame 43 was driven, the described grab 434 on it together moved, thereby described fixture block 424 is deviate from from described grab 434.Make the locking that described dropout frame 43 is removed described bridge plate 42, described bridge plate 42 is free to rotate again.
Referring to Fig. 3, Fig. 4 and Fig. 9, in the foregoing description that provides of the present invention, on the described dropout frame 43 resetting device 435 is installed, described resetting device 435 drives described dropout frame 43 and rotates around described locking bearing pin 431.Described resetting device 435 is a spring, and described torsion spring set is contained on the projection at bridge plate middle part, and described projection plays the effect of location to spring.An other end of described spring leans the top at holder 41, described spring can promote to thread off frame 43 rotates, when 42 motions of described bridge plate, described dropout frame 43 can accompany movement under the effect of resetting device 435, and the grab 434 on it can be matched with described fixture block 424.
Referring to Fig. 1, Fig. 2, Fig. 5, Fig. 6 and Fig. 7, in the foregoing description that the present invention provides, also include a panel assembly 2 that is installed in described housing 1 top, described panel assembly 2 comprises panel 21, is installed in start button 22 and stop button 23 on the described panel 21, described start button 22 matches with the bridge plate afterbody 423 of described bridge plate 42, promoting described bridge plate 42 rotates around described bridge plate bearing pin 421, described stop button 23 matches with the dropout frame head 432 of described dropout frame 43, promotes described dropout frame 43 and rotates around described locking bearing pin 431.Described panel assembly 2 is set can realizes manual control to relay, the convenient use improved fail safe.
Referring to Fig. 3 to Fig. 7, Figure 12, in the foregoing description that the present invention provides, described electromagnetic drive component 3 comprises solenoid 31, by the armature 32 of described solenoid 31 adhesives with spur the extension spring 33 that described armature 32 resets, described armature 32 matches with the dropout frame head 432 of described dropout frame 43, and the pulling force of described extension spring 33 is greater than the reseting elasticity of described resetting device 435.In the said structure that the present invention provides, after described solenoid 31 adhesives, its suction-combining force is greater than the pulling force of described extension spring 33, thereby makes described armature 32 keep attracting state.Behind described solenoid 31 disconnected magnetic, described armature 32 will reset under the pulling of described extension spring 33, thereby can drive dropout frame afterbody 433 motions of described dropout frame 43, the locking that described dropout frame 43 is removed described bridge plate 42.
Referring to Fig. 3 to Fig. 7, Figure 11, in the foregoing description that the present invention provides, described contact assembly 5 comprises the fixed contact holder 51 that is fixed in the described housing 1, be fixed on fixed contact 52 on the described fixed contact holder, be installed in the described fixed contact holder 51 and slide plate 53 and be installed in moving contact 54 on the described slide plate 53 slidably, the bridge plate afterbody 423 of described bridge plate 42 matches with described slide plate 53, drive described slide plate 53 and slide, described moving contact 54 and described fixed contact 52 are contacted.On the described slide plate 53 back-moving spring 55 is installed, an end of described back-moving spring 55 leans in the bottom of described slide plate 53, and an other end leans the top at described fixed contact holder 51.When described slide plate 53 moves upward, will compress described back-moving spring 55.Support spring 56 is installed below each described moving contact 54.Described fixed contact holder 51 is fixed together with described holder 41.A slot 531 is formed on the top of described slide plate 53, and the bridge plate head 422 of described bridge plate 42 inserts in the described slot 531, slides up and down thereby make described bridge plate 42 can drive described slide plate 53.When described bridge plate 42 rotated, the bridge plate head 422 of described bridge plate 42 drove described slide plate 53 and upwards slides, and described moving contact 54 is contacted with described fixed contact 52.After described bridge plate 42 was unlocked, described back-moving spring 55 will drive described slide plate 53 to lower slider, thereby described moving contact 54 is separated with described fixed contact 52.Described support spring 56 plays the effect of support, guarantees that described moving contact 54 can slide up and down, thereby makes things convenient for moving contact and fixed contact to be in contact with one another.In the present embodiment, provided the scheme that has many group moving contacts and fixed contact simultaneously, each is organized the contact and sets gradually up and down, by slide plate 53 unified control conductings.
Referring to Fig. 2 and Figure 10, in the foregoing description that the present invention provides, described housing 1 is made up of two parts 11,12, one of them part 11 is to have numerous jacks 13, be used to hold contact assembly, external connection line stretches in the relay by jack 13, thereby connecting line is connected on the described fixed contact 52.
Referring to Fig. 8 and Figure 13, in the foregoing description that the present invention provides, on described start button 22 and/or the described stop button 21 feel structure 221 is installed, described feel structure 221 comprises two balls 2211 and leans the spring 2212 of two balls, be provided with step in start button 22 and the stop button 21, when described ball moves downward, can pass through from step, produce kick, the feel when the increase user presses.