Pin structure with current impact resistance

Abstract

The utility model discloses a contact pin structure with current impact resistance. The contact pin structure comprises a contact head, a contact spring, a ferrite and a contact pin tail part, the outer side of the contact head is bonded with a ferrite through epoxy resin, the tail end of the ferrite is bonded with a pin tail through epoxy resin, and a contact spring is connected between the contact head and the pin tail. According to the contact pin structure with current impact resistance, the contact spring is in a compressed state, so that the contact head is conducted with the tail part of the contact pin, the surface of the contact spring is plated with gold, the resistance is greatly reduced, when a connector is electrically connected, the contact pin is electrically inserted into a jack, and the contact part discharges and the current is instantly increased at the moment when the contact pin is in contact with the jack; at the moment, the contact spring and the ferrite form a solenoid effect, the magnetic flux passing through the ferrite is instantly increased through the current change of the contact spring, a solenoid formed by the contact spring and the ferrite strongly prevents the magnetic flux from being increased, and then the current passing through the contact spring is prevented from being increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromechanical element connector, specifically to a pin structure with current impact resistance. BACKGROUND

[0002] The connector is an electronic component commonly used in electronic engineering, belongs to the electromechanical element class, the connector is equipped with a pin at one end inside; One end is inserted into the jack, that is, the device connecting two active devices, which is an electronic component for transmitting and exchanging current or optical signals between electronic system devices.

[0003] The utility model discloses a connector head, including plug body, wire protection sleeve, wire pressing assembly and locking assembly, wire protection sleeve is covered in the outer periphery of cable, wire pressing assembly is located in wire protection sleeve, locking assembly is detachably covered in wire protection sleeve end portion, when along the axial tightening locking assembly, locking assembly extrudes wire pressing assembly, makes wire pressing assembly clamp cable, guarantees that cable and plug body are reliably connected, prevents cable from being disconnected with plug body because of radial external force, and the current or signal transmission between plug body and cable is prevented by outside interference. Wire pressing assembly can compress cable, prevent the connection between cable and plug body from being pulled apart by axial force. Therefore, the utility model provides a connector head with high connection reliability. The utility model discloses a connector seat matched with the above connector head. The utility model discloses a connector simultaneously comprising the above connector head and the above connector seat.

[0004] The commonly used connector is in the connection state, and then power supply work is carried out, at this time, the connector pin, the jack is connected first, then the current passes, the circuit current formed by the pin and the jack is stable, sometimes the connector requires live insertion, that is, one end of the live connector is connected with the other end (live or not live), at this time, the pin or the jack is live and inserted, when the pin is inserted into the jack, the instantaneous conduction is conducted, the current is instantaneously increased, because of the discharge effect of the instantaneous contact, the instantaneous current can be much larger than the rated current.

[0005] In view of the above problems, it is urgent to make innovative design on the basis of the original pin structure with current impact resistance. Utility model content

[0006] The utility model discloses a pin structure with current impact resistance, to solve the problem that the pin or the jack is live and inserted, when the pin is inserted into the jack, the instantaneous conduction is conducted, the current is instantaneously increased, because of the discharge effect of the instantaneous contact, the instantaneous current can be much larger than the rated current.

[0007] In order to realize the above object, the utility model provides the following technical scheme: a pin structure with current impact resistance, including contact head, contact spring, ferrite and pin tail, the ferrite is bonded with the contact head outside through epoxy resin, the pin tail is bonded with the ferrite tail end through epoxy resin, the contact spring is connected between the contact head and the pin tail, and the contact spring is arranged outside the ferrite.

[0008] Preferably, the contact spring surface is gold-plated, and the contact spring is in a compressed state.

[0009] Preferably, the contact spring is in conductive connection with the contact head and the pin tail respectively; the contact spring in conductive connection with the contact head and the pin tail respectively can make the contact spring and the ferrite form a solenoid effect, and the magnetic flux through the ferrite is instantaneously increased through the current change of the contact spring.

[0010] Preferably, the ferrite has a cylindrical shape in plan view.

[0011] Preferably, the contact spring is uniformly arranged outside the ferrite.

[0012] Compared with the prior art, the pin structure with current impact resistance has the following beneficial effects:

[0013] The structure can suppress the peak voltage; because the contact spring is in a compressed state, the contact head and the pin tail are in conductive connection, the contact spring surface is gold-plated to greatly reduce the resistance, when the connector is in a charged state, the pin is inserted into the jack, the contact part discharges at the moment of contacting the jack, the current instantaneously increases, at this time, the contact spring and the ferrite form a solenoid effect, the magnetic flux through the ferrite is instantaneously increased through the current change of the contact spring, the solenoid formed by the contact spring and the ferrite strongly prevents the increase of the magnetic flux, thereby preventing the increase of the current through the contact spring, so that the current through the pin and the jack is suppressed, and the pin structure with current impact resistance is applicable to the case that the current is unstable and the peak current exists in the charged plugging or circuit, the peak current generated due to the charged plugging or unstable circuit is suppressed, and the current flowing into the whole machine to damage other devices is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a whole sectional view structure schematic diagram of the utility model;

[0015] Fig. 2 It is a contact head and ferrite connection structure schematic diagram of the utility model;

[0016] Fig. 3 It is a ferrite and contact spring connection structure schematic diagram of the utility model.

[0017] In the figure: 1, contact head; 2, contact spring; 3, ferrite; 4, pin tail. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a pin structure with current impact resistance, comprising:

[0020] Embodiment one: as Figs. 1-3 The utility model provides a kind of technical scheme: a pin structure with current impact resistance, discloses: contact head 1, contact spring 2, ferrite 3 and pin tail 4;Contact head 1 outside is adhered with ferrite 3 by epoxy resin, the tail end of ferrite 3 is adhered with pin tail 4 by epoxy resin, contact spring 2 is connected between contact head 1 and pin tail 4, and contact spring 2 is arranged on the outside of ferrite 3;

[0021] Contact spring 2 surface is gold-plated treatment, in compression state;Contact spring 2 two ends are respectively conducted with contact head 1 and pin tail 4;Ferrite 3 is in the shape of cylindrical structure from the top view;Contact spring 2 is evenly arranged on the outside of ferrite 3;

[0022] This structure because contact spring 2 is in compression state, makes contact head 1 and pin tail 4 conduction, contact spring 2 surface gold-plated treatment makes its resistance greatly reduce, when connector is electrified, pin is inserted into jack, pin is contacted to jack in the moment, contact site discharges, current increases instantaneously, at this time, contact spring 2 and ferrite 3 form a solenoid effect, the magnetic flux through ferrite 3 is instantaneously increased by the current change of contact spring 2, the solenoid formed by contact spring 2 and ferrite 3 strongly prevents the increase of magnetic flux, and then prevents the increase of current through contact spring 2, so as to suppress the current through pin and jack, and the principle is the same when connector is separated.

[0023] Embodiment two: as Figs. 1-3 The utility model provides a kind of technical scheme: a pin structure with current impact resistance, discloses: this structure connector is normally inserted, and the current flowing through pin and jack is stable, when peak current appears, the change of current can cause the change of magnetic flux in contact spring 2 and ferrite 3, the solenoid formed by contact spring 2 and ferrite 3 prevents the change of magnetic flux, to suppress peak current.

[0024] That which is not described in detail in the present specification is part of the prior art known to those skilled in the art.

[0025] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pin structure resistant to current surges, comprising a contact head (1), a contact spring (2), ferrite (3), and a pin tail (4); characterized in that: Ferrite (3) is bonded to the outside of the contact head (1) with epoxy resin. A pin tail (4) is bonded to the tail end of the ferrite (3) with epoxy resin. A contact spring (2) is connected between the contact head (1) and the pin tail (4), and the contact spring (2) is located on the outside of the ferrite (3).

2. The pin structure with resistance to current surges according to claim 1, characterized in that: The contact spring (2) is gold-plated and is in a compressed state.

3. The pin structure with resistance to current surges according to claim 1, characterized in that: The two ends of the contact spring (2) are respectively connected to the contact head (1) and the tail of the pin (4).

4. The pin structure with resistance to current surges according to claim 1, characterized in that: The ferrite (3) has a cylindrical structure when viewed from above.

5. A pin structure with resistance to current surges according to claim 1, characterized in that: The contact springs (2) are evenly arranged on the outside of the ferrite (3).

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