A kind of anti-open circuit aviation socket
Technical field
The utility model is related to electric connector fields, and in particular to a kind of anti-open circuit aviation socket.
Background technology
For electric connector in addition to meeting general performance requirement, especially important requirement is that electric connector must reach and connect
Touch good, reliable operation is easy to maintain, and reliable operation whether directly affects the normal work of aircraft electrical, is related to entire master
The safety of machine.For this purpose, host circuit has very strict requirement to the q&r of electric connector, also just because of electrical connection
The high quality and high reliability of device, make it also be widely used in the military systems such as Aeronautics and Astronautics, national defence.Electric connector is commonly used
Sorting technique include shape, structure, purposes etc..
In existing electric connector, contact pin is not often interfere with each other before and after grafting, but before the docking of some electric connectors
The occasion to contact pin progress short circuit is needed, for being inserted by anti-open circuit aviation, is mainly applicable to protective current mutual inductor,
Secondary wiring of current mutual inductor to aviation plug when, aviation is inserted under the state of unpluging, and the secondary line of current transformer is in opening
Line state, under operation, secondary line can generate open-circuit voltage to current transformer, with the bigger open-circuit voltage of this electric current more
Greatly, volts up to ten thousand are reached as high as, it is easy to current transformer breakdown be caused to cause line fault.
Utility model content
Based on the above problem, the utility model aim is that short circuit can be carried out before grafting to specific contact pin by providing one kind,
Automatically the anti-open circuit aviation socket of shorting pin is disconnected after grafting.
In view of the above problems, provide following technical solution:A kind of anti-open circuit aviation socket, it is described to insert including socket shell
Seat shell center is equipped with through hole, is equipped with the protecgulum and rear cover being set in distance in the through hole, is equipped between the protecgulum and rear cover
The middle cover that can be slid along through hole axial direction, covers after described and is fixed with several contact pins, several pin holes, institute are covered in described
Contact pin syringe needle is stated through the pin holes and protecgulum of middle cover and in through hole, resetting spring is equipped between the middle cover and rear cover,
The middle cover towards protecgulum the mandril for being provided through protecgulum on one side, the middle cover towards protecgulum be additionally provided on one side connection wherein
The short circuit slot of its pin opening position of shorting pin is needed, the short circuit slot slot bottom is covered with conductive shorted component, the short circuit slot slot
Insulating cylinder is equipped at the pin holes aperture at bottom, the insulating cylinder is equipped with copper plain cushion and contact spring successively towards one end of protecgulum.
In said structure, when socket does not dock with plug, resetting spring promotes middle cover to be moved towards protecgulum one side, and makes top
Bar protrudes from protecgulum end face, and the shorted component in middle cover is connected with each other with copper plain cushion and contact spring at this time, due to contact spring
It is contacted with contact pin, therefore each contact pin is made to form short circuit effect;When a plug is to be inserted into the socket, plug promotes mandril to make middle cover towards rear cover
Direction retreats, and middle cover is promoted to move and separated with copper plain cushion after driving shorted component, so as to disconnect being electrically connected between each contact pin.
The utility model is further arranged to, and the one side of the protecgulum towards rear cover is equipped with support column, and the support column is worn
It crosses middle cover and offsets or be arranged to the rear cover towards the one side of protecgulum equipped with support column with rear cover, the support column passes through middle cover
It offsets with protecgulum.
In said structure, support column is used to support the distance between protecgulum and rear cover, and both is made to keep gap in
Lid reserves activity space.
The utility model is further arranged to, the contact spring for butterfly spring or compression spring, spring inside diameter with
Contact pin outer wall is electrically connected, and the contact spring is contacted with copper plain cushion.
The utility model is further arranged to, the shorted component include be fixed on short circuit slot slot bottom short circuit bottom plate and with
The short circuit cylinder that short circuit bottom plate is connected, the short circuit jacket casing is outside insulating cylinder.
In said structure, insulating cylinder makes both keep state of insulation, avoids the occurrence of for separating contact pin and shorted component
It is unexpected that short circuit phenomenon occur.
The utility model is further arranged to, and the short circuit bottom plate adds the height of short circuit cylinder to be less than insulating cylinder height.
In said structure, it can be moved for middle cover and activity space is provided.
The utility model is further arranged to, and the contact pin is equipped with weldering cup compared with one end of syringe needle.
In said structure, weldering cup is used for welding cable
The utility model is further arranged to, the protecgulum towards middle cover one side, it sets with short circuit slot corresponding position
It puts and holds hole.
In said structure, put and hold hole for accommodating contact spring and copper plain cushion.
The utility model is further arranged to, and the protecgulum is equipped with the slide opening for passing through mandril.
The beneficial effects of the utility model:By setting middle cover, moved in grafting using mandril control middle cover, so as to real
The now short circuit of part contact pin can effectively avoid the influence that electrostatic brings contact pin in the non-grafting of socket, will hold susceptible to static electricity etc.
The contact pin that extraneous factor influences carries out short circuit ground connection, can disconnect short circuit state in time again when plugging in, ensure that equipment
Reliability service.
Description of the drawings
Fig. 1 is the whole complete section structure diagram of the utility model.
Fig. 2 is first configuration schematic diagram of the utility model.
Fig. 3 is second configuration schematic diagram of the utility model.
Fig. 4 is the 3rd configuration schematic diagram of the utility model.
Figure label meaning:10- socket shells;11- through holes;12- protecgulums;121- support columns;122-, which is put, holds hole;123- is slided
Hole;13- rear covers;14- middle covers;141- pin holes;142- mandrils;143- short circuit slots;144- shorted components;1441- short circuit bottom plates;
1442- short circuit cylinders;145- insulating cylinders;1451- copper plain cushions;1452- contact springs;15- contact pins;151- welds cup;16- resets bullet
Spring.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Referring to figs. 1 to Fig. 4, a kind of anti-open circuit aviation socket as shown in Figures 1 to 4, including socket shell 10, the socket
10 center of shell is equipped with through hole 11, the protecgulum 12 being set in distance and rear cover 13 is equipped in the through hole 11, the protecgulum 12 is with after
The middle cover 14 that can be slid along 11 axial direction of through hole is equipped between lid 13, several contact pins 15 are fixed on the rear cover 13, it is described
Middle cover 14 is equipped with several pin holes 141,15 syringe needle of contact pin through middle cover pin holes 141 and protecgulum 12 and positioned at through hole 11
It is interior, it is equipped with resetting spring 16 between the middle cover 14 and rear cover 13, the middle cover 14 towards before being provided through of protecgulum 12 on one side
The mandril 142 of lid 12, the connection that is additionally provided on one side of the middle cover 14 towards protecgulum 12 wherein need its pin holes 141 of shorting pin 15
The short circuit slot 143 of position, 143 slot bottom of short circuit slot are covered with conductive shorted component 144, and 143 slot bottom of short circuit slot is inserted
At 141 aperture of pin hole be equipped with insulating cylinder 145, the insulating cylinder 145 towards one end of protecgulum 12 successively be equipped with copper plain cushion 1451 and
Contact spring 1452.
In said structure, when socket does not dock with plug, resetting spring 16 promotes middle cover 14 to be moved towards 12 one side of protecgulum,
And mandril 142 is made to protrude from 12 end face of protecgulum, the shorted component 144 in middle cover 14 and copper plain cushion 1451 and contact spring at this time
1452 are connected with each other, and since contact spring 1452 is contacted with contact pin 15, make each formation of contact pin 15 short circuit effect;When plug is inserted
When entering socket, plug promotes mandril 142 that middle cover 14 is made to be retreated towards 13 direction of rear cover, after middle cover 14 is promoted to drive shorted component 144
It moves and is separated with copper plain cushion 1451, so as to disconnect being electrically connected between each contact pin 15.
In the present embodiment, the one side of the protecgulum 12 towards rear cover 13 is equipped with support column 121, and the support column 121 passes through
The one side that middle cover 14 offseted or be arranged to the rear cover 13 towards protecgulum 12 with rear cover 13 is equipped with support column 121, the support column
121 offset through middle cover 14 with protecgulum 12.
In said structure, support column 121 is used to support the distance between protecgulum 12 and rear cover 13, and both is made to keep gap
To reserve activity space to middle cover 14.
In the present embodiment, the contact spring 1452 is butterfly spring or compresses spring, outside spring inside diameter and contact pin 15
Wall is electrically connected, and the contact spring 1452 is contacted with copper plain cushion 1451.
In the present embodiment, the shorted component 144 include be fixed on 143 slot bottom of short circuit slot short circuit bottom plate 1441 and with it is short
The connected short circuit cylinder 1442 of bottom plate 1441 is connect, the short circuit cylinder 1442 is placed on outside insulating cylinder 145.
In said structure, insulating cylinder 145 is used to separate contact pin 15 and shorted component 144, and both is made to keep state of insulation,
Unexpected short circuit phenomenon is avoided the occurrence of to occur.
In the present embodiment, the height of the short circuit bottom plate 1441 plus short circuit cylinder 1442 is less than 145 height of insulating cylinder.
In said structure, it can be moved for middle cover 14 and activity space is provided.
In the present embodiment, the contact pin 15 is equipped with weldering cup 151 compared with one end of syringe needle.
In said structure, weldering cup 151 is used for welding cable
In the present embodiment, the protecgulum 12 towards middle cover 14 one side, it is equipped with 143 corresponding position of short circuit slot and puts appearance
Hole 122.
In said structure, put and hold hole 122 for accommodating contact spring 1452 and copper plain cushion 1451.
In the present embodiment, the protecgulum 12 is equipped with the slide opening 123 for passing through mandril 142.
The beneficial effects of the utility model:By setting middle cover 14, using mandril 142 middle cover 14 is controlled to transport in grafting
It is dynamic, so as to fulfill the short circuit of part contact pin 15, the influence that electrostatic brings contact pin 15 is can effectively avoid in the non-grafting of socket, it will
The contact pin 15 that holding the extraneous factors such as susceptible to static electricity influences carries out short circuit ground connection, can disconnect short circuit shape in time again when plugging in
State ensure that the reliability service of equipment.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, several improvement and modification, above-mentioned vacation can also be made
If these improvements and modifications also should be regarded as the scope of protection of the utility model.