CN216850414U - Heavy current non-insertion-force contact pair - Google Patents

Abstract

The utility model discloses a heavy current does not have plug power contact to right, including first conduction and second conduction, first conduction switches on with the contact of second conduction, sleeve one end is located in first conduction slip, the sleeve is inside hollow structure, sleeve endwise slip is followed to first conduction, the fixed conduction that is equipped with of sleeve other end, the conduction switches on with first conduction through the wire to the conduction, telescopic inside is equipped with the elastic component, elastic component one end and first conduction fixed connection, the elastic component other end and conduction fixed connection, the second conduction is kept away from first conduction one end and is equipped with conduction portion. The utility model provides a heavy current does not have plug power contact to right, can reduce the second and switch on the impact force of piece to first switching on to reduce the friction loss between first switching on and the second switching on, prolong the life that the contact is right.

Description

Heavy current non-insertion-force contact pair

Technical Field

The utility model relates to an electric connector technical field especially relates to a heavy current does not have plug power contact to.

Background

At present, the transmission of a general large-current load is carried out through a contact pair, and a conventional contact pair generally comprises two rigid contact pieces, wherein one rigid contact piece is provided with a connecting pin, the other rigid contact piece is provided with a connecting sleeve, and the connecting pin is inserted into the connecting sleeve to realize the conduction of a line. Because the traditional connection needle and the connecting sleeve are matched with each other to have larger friction force and positive pressure, the connecting sleeve can be more stressed when being plugged and pulled every time in the circuit occasion which needs to be frequently disconnected and contacted, and the impact force borne by the connecting sleeve is larger, so that the friction loss between the connection needle and the connecting sleeve is larger, and the service life of a contact pair is further shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heavy current does not have plug power contact right, can reduce the second and switch on the impact force of piece to the first piece that switches on to reduce the first friction loss that switches on between the piece and the second, prolong the life that the contact is right.

The utility model discloses a heavy current does not have plug power contact is to the technical scheme who adopts:

the utility model provides a heavy current does not have plug power contact right, includes first and second conduction pieces that switch on, first conduction piece switches on with the contact of second conduction piece and switches on, sleeve one end is located in the first slip that switches on, the sleeve is inside hollow structure, sleeve endwise slip is followed to first conduction piece, the sleeve other end is fixed and is equipped with the conduction piece, the conduction piece switches on with first conduction piece through the wire, telescopic inside is equipped with the elastic component, elastic component one end and first conduction piece fixed connection, the elastic component other end and conduction piece fixed connection, the second switches on the piece and keeps away from first conduction piece one end and is equipped with the conduction portion.

Preferably, a stop member is arranged at one end, close to the elastic member, of the first conduction member, the cross section of the stop member is larger than that of the first conduction member, and one end of the elastic member is fixedly connected with the stop member.

Preferably, a gap is formed between one end, close to the second conduction piece, of the sleeve and the stop piece.

Preferably, the elastic member is a spring, a first boss is arranged at one end, close to the elastic member, of the stop member and is inserted into the elastic member, a second boss is arranged at one end, close to the elastic member, of the conducting member and is inserted into the elastic member.

Preferably, the first conduction piece is a needle sleeve, the bottom surface of the inner cavity of the needle sleeve is a contact surface, the second conduction piece is a contact needle, and one end of the contact needle is inserted into the needle sleeve and is in contact conduction with the contact surface.

Preferably, a plurality of contact protrusions are arranged on the contact surface, the contact protrusions are uniformly distributed around the axial center line of the needle sleeve, and one end of the contact needle, which is in contact with the needle sleeve, is spherical.

Preferably, a clamping ring is arranged on the side wall of the middle part of the second conduction piece, and the cross section of the clamping ring is larger than that of the first conduction piece.

Preferably, the sleeve is made of an insulating material.

The utility model discloses a big current does not have plug power contact to beneficial effect be: the second conduction part is conducted with an external circuit through the conduction part, when the second conduction part needs to be contacted and conducted with the first conduction part, the first conduction part is pressed by the second conduction part and compresses the elastic part towards the direction far away from the second conduction part, the other end of the elastic part is propped by the conduction part, the elastic part can generate elastic force with equal size and opposite direction, the first conduction part is pushed towards the direction close to the second conduction part, under the combined action of the pressure and the elastic force, the second conduction part is tightly contacted with the first conduction part together, the contact conduction of the second conduction part and the first conduction part is maintained, so that the conduction part conducted with the first conduction part through a lead is conducted with the external circuit, compared with the plug-pull matching between the traditional rigid connection needle and the rigid connection sleeve, the elastic part can play a buffering role when the second conduction part is conducted with the first conduction part, reduce the second and switch on the impact force of piece to first to reduce the second and switch on the friction loss between piece and the first piece that switches on, prolong the life who contacts to.

Drawings

Fig. 1 is a schematic structural view of a large-current non-insertion-force contact pair of the present invention.

Fig. 2 is a sectional view of fig. 1.

Fig. 3 is a schematic view of a part of the structure of the large-current non-insertion-force contact pair of the present invention.

Fig. 4 is a schematic structural diagram of the second conduction piece of the large-current non-insertion-force contact pair of the present invention.

10. A sleeve; 11. a gap; 20. a first conduction member; 21. a stopper; 22. a first boss; 23. a contact surface; 231. a contact projection; 30. a conductive member; 31. a second boss; 40. an elastic member; 50. a second conduction member; 51. a conduction part; 52. a snap ring; 60. and (4) conducting wires.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

referring to fig. 1 and 2, a large-current non-plug-force contact pair includes a first conduction member 20 and a second conduction member 50, the first conduction member 20 and the second conduction member 50 are in contact conduction, the first conduction member 20 is slidably disposed at one end of a sleeve 10, the sleeve 10 is of an internal hollow structure, the first conduction member 20 axially slides along the sleeve 10, a conduction member 30 is fixedly disposed at the other end of the sleeve 10, the conduction member 30 is electrically connected with the first conduction member 20 through a wire 60, an elastic member 40 is disposed inside the sleeve 10, one end of the elastic member 40 is fixedly connected with the first conduction member 20, the other end of the elastic member 40 is fixedly connected with the conduction member 30, and a conduction portion 51 is disposed at one end of the second conduction member 50, which is far away from the first conduction member 20.

The second conduction member 50 is conducted with an external circuit through the conduction part 51, when the second conduction member 50 needs to be contacted and conducted with the first conduction member 20, the first conduction member 20 is pressed by the second conduction member 50 to compress the elastic member 40 in a direction away from the second conduction member 50, because the other end of the elastic member 40 is pressed by the conduction member 30, the elastic member 40 generates an elastic force with equal magnitude and opposite direction, the first conduction member 20 is pushed in a direction close to the second conduction member 50, under the combined action of the pressure and the elastic force, the second conduction member 50 is tightly contacted with the first conduction member 20, the contact and conduction of the second conduction member 50 and the first conduction member 20 are maintained, so that the conduction member 30 conducted with the first conduction member 20 through the lead 60 is conducted with the external circuit, compared with the insertion and extraction matching between the traditional rigid connection needle and the rigid connection sleeve, when the second conduction member 50 is conducted with the first conduction member 20, the elastic member 40 can play a role in buffering, so that the impact force of the second conduction member 50 on the first conduction member 20 is reduced, the friction loss between the second conduction member 50 and the first conduction member 20 is reduced, and the service life of the contact pair is prolonged.

Furthermore, a stop member 21 is disposed at one end of the first conduction member 20 close to the elastic member 40, the cross section of the stop member 21 is larger than that of the first conduction member 20, and one end of the elastic member 40 is fixedly connected with the stop member 21. The stopper 21 prevents the first conduction member 20 from being entirely ejected out of the sleeve 10 by the elastic member 40, so that the lead 60 is exposed to the outside, thereby causing a risk of electric leakage.

Specifically, a gap 11 is provided between one end of the sleeve 10 close to the second conducting member 50 and the stop member 21. After the second conduction part 50 leaves the first conduction part 20, the pressure on the first conduction part 20 disappears, the stop part 21 moves towards the direction close to the second conduction part 50 under the driving of the elastic force of the elastic part 40, and the gap 11 can prevent the stop part 21 from impacting the sleeve 10 under the driving of the elastic part 40 to cause damage.

Furthermore, the elastic member 40 is a spring, the stopper 21 has a first protrusion 22 near one end of the elastic member 40, the first protrusion 22 is inserted into the elastic member 40, the conductive member 30 has a second protrusion 31 near one end of the elastic member 40, and the second protrusion 31 is inserted into the elastic member 40. The insertion of the first boss 22 and the second boss 31 into the two ends of the elastic member 40, respectively, can prevent the elastic member 40 from being separated from the first conduction member 20 or the conduction member 30 during the stretching and compressing processes.

Specifically, referring to fig. 3 and 4, the first conducting member 20 is a needle sheath, the bottom surface of the inner cavity of the needle sheath is a contact surface 23, the second conducting member 50 is a contact needle, and one end of the contact needle is inserted into the needle sheath to be in contact with the contact surface 23 for conducting. In the present embodiment, the first conduction member 20 and the second conduction member 50 are matched by a pin hole, wherein the first conduction member 20 is a needle sheath, and the second conduction member 50 is a contact pin. It should be noted that, in other embodiments, the first conduction member 20 may also be a contact pin, and the second conduction member 50 is a needle guard.

More specifically, the contact surface 23 is provided with a plurality of contact protrusions 231, the contact protrusions 231 are uniformly distributed around the axial center line of the needle sleeve, and one end of the contact needle, which is in contact with and in communication with the needle sleeve, is a spherical surface. The spherical end of the contact pin is in contact with the plurality of contact protrusions 231 on the contact surface 23, and the plurality of contact protrusions 231 form a plurality of input points, so as to further ensure that the contact pin and the needle sheath can be in contact with each other.

Further, a snap ring 52 is disposed on a side wall of the middle portion of the second conduction member 50, and a cross section of the snap ring 52 is larger than that of the first conduction member 20. The snap ring 52 can limit the length of the first conduction part 20 inserted into the sleeve 10, and prevent the elastic part 40 from being excessively pressed, so that the elastic part 40 fails; meanwhile, the snap ring 52 is made of an insulating material, so that a worker can hold the snap ring 52 when using the second conduction piece 50, and the danger caused by touching the circuit by the worker is avoided.

Specifically, the sleeve 10 is made of an insulating material. The sleeve 10 made of insulating materials is non-conductive, so that workers can be protected, and danger caused by the fact that the workers touch a circuit is avoided.

The utility model provides a large current non-plug force contact pair, the second conduction piece is conducted with an external circuit through a conduction part, when the second conduction piece is conducted with the first conduction piece in a contact way, the first conduction piece is pressed by the pressure provided by the second conduction piece, the elastic piece is compressed towards the direction far away from the second conduction piece, because the other end of the elastic piece is supported by the conduction piece, the elastic piece can generate an elastic force with equal size and opposite direction, the first conduction piece is pushed towards the direction close to the second conduction piece, under the combined action of the pressure and the elastic force, the second conduction piece is tightly contacted with the first conduction piece together, the contact conduction of the second conduction piece and the first conduction piece is maintained, so that the conduction piece conducted with the first conduction piece through a wire is conducted with the external circuit, compared with the plug matching between the traditional rigid connection needle and the rigid connection sleeve, when the second conduction piece is conducted with the first conduction piece, the elastic component can play the effect of buffering, reduces the second and switches on the impact force of piece to first switching on to reduce the second and switch on the friction loss between piece and the first piece that switches on, the life that the extension contact was right.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (8)

1. The utility model provides a large current does not have plug power contact pair, its characterized in that, switches on the piece including first piece and the second that switches on, first piece and the second that switches on a contact and switches on, sleeve one end is located in first piece slip that switches on, the sleeve is inside hollow structure, first piece along sleeve endwise slip that switches on, the sleeve other end is fixed and is equipped with the conduction piece, the conduction piece switches on with first piece that switches on through the wire, telescopic inside is equipped with the elastic component, elastic component one end and first piece fixed connection that switches on, the elastic component other end and conduction piece fixed connection, the second switches on the piece and keeps away from first piece one end that switches on and is equipped with conduction portion.

2. The large current non-plug contact pair according to claim 1, wherein the first conductive member has a stop member near an end of the elastic member, the stop member has a larger cross section than the first conductive member, and an end of the elastic member is fixedly connected to the stop member.

3. The high current non-insertion force contact pair according to claim 2, wherein a gap is provided between an end of said sleeve adjacent to said second conductive member and said stop.

4. The high current non-insertion force contact pair according to claim 3, wherein said elastic member is a spring, said stopper member has a first protrusion near one end of said elastic member, said first protrusion is inserted into said elastic member, said conducting member has a second protrusion near one end of said elastic member, said second protrusion is inserted into said elastic member.

5. The high current no-insertion-force contact pair as claimed in claim 1, wherein said first conducting member is a needle sleeve, a bottom surface of an inner cavity of said needle sleeve is a contact surface, said second conducting member is a contact pin, and one end of said contact pin is inserted into said needle sleeve to be in contact conduction with said contact surface.

6. The large-current non-insertion-force contact pair as claimed in claim 5, wherein a plurality of contact protrusions are arranged on the contact surface, the contact protrusions are uniformly distributed around an axial center line of the needle guard, and one end of the contact needle, which is in contact with and in conduction with the needle guard, is a spherical surface.

7. The large current no-insertion-force contact pair as claimed in claim 6, wherein a snap ring is provided on a side wall of the middle portion of said second conducting member, and a cross section of said snap ring is larger than that of said first conducting member.

8. The high current no-insertion-force contact pair according to claim 1, wherein said sleeve is an insulating material.

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