Contact element capable of realizing high-current transmission, connector and connector assembly

Abstract

The invention belongs to the technical field of connectors, and particularly relates to a contact element capable of realizing high-current transmission, a connector and a connector assembly, a plurality of jack petals are formed on a plug-in part of the contact element, and the outer side wall of each jack petal is provided with an inclined surface bulge which can abut against the inner wall of a plug-in cavity of the connector so as to enable the jack petals to apply radial pressure to the adaptive contact element. The contact element is arranged on the connector, and the connector is inserted into the adaptive connector, so that the contact element is inserted into the adaptive contact element. The jack petals of the contact member are provided with the inclined plane projections, and after the contact member and the adaptive contact member are plugged in place, the contact member continues to move in the plugging cavity of the connector and abuts against the inner wall of the plugging cavity, so that the contact member compresses the adaptive contact member, the contact resistance is reduced, and the contact performance is improved. As the inner wall of the insertion cavity tightly presses the jack petals only after the contact element and the adaptive contact element are inserted, abrasion caused by overlarge pressure between the contact element and the adaptive contact element is avoided, abrasion is avoided after the connector is repeatedly inserted and pulled, and contact resistance can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of connectors, and in particular relates to a contact piece, a connector and a connector assembly capable of realizing high current transmission. Background Art

[0002] Traditional circular jack contacts for high current transmission use structures such as split slotted opening holes, torsion springs, and closely wound springs. In principle, they all use initial radial positive pressure to achieve circumferential contact between the jack and the pin, thereby achieving high current transmission. If existing technologies are used to solve the problem of high current transmission, it is necessary to ensure that the force on each petal of the jack is uniform. This is because it is difficult to ensure that the force on each petal is uniform when the jack petals are closed. The contact principle of torsion springs and closely wound springs is the same as that of the jack opening holes. They are all connected in parallel with multiple lines. In order to reduce contact resistance and thus temperature rise during high current transmission, radial pressure needs to be increased. Increasing radial pressure will inevitably accelerate the wear between the pinholes. When considering the plug-in life of the connector, low contact resistance cannot be achieved by increasing the initial radial pressure. Summary of the invention

[0003] In order to solve the technical problem that the contact piece of the above-mentioned high-current connector cannot reduce contact resistance and wear at the same time after being plugged in, the present invention provides a contact piece, a connector and a connector assembly that can realize high-current transmission.

[0004] The objective of the present invention is achieved by adopting the following technical solution. According to the present invention, a contact piece capable of transmitting large current comprises a blind hole extending from a plug-in end face, the side wall of the blind hole is grooved so that the plug-in portion of the contact piece forms a plurality of circumferentially distributed and axially extending cantilevered jack petals, and the outer side wall of the jack petal is provided with an inclined protrusion capable of abutting against the inner wall of the connector plug-in cavity so that the jack petal applies radial pressure to the matching contact piece.

[0005] Compared with the prior art, the present invention is advantageous in that: by providing an inclined protrusion on the socket flap of the contact piece, after the contact piece and the adapter contact piece are plugged in, the contact piece continues to move in the connector plug-in cavity and abuts against the inner wall of the plug-in cavity, so that the contact piece presses the adapter contact piece and reduces the contact resistance. At the same time, since the inner wall of the plug-in cavity presses the socket flap only after the contact piece and the adapter contact piece are plugged in, wear caused by excessive pressure between the contact piece and the adapter contact piece is avoided.

[0006] Furthermore, the blind hole is an inverted cone blind hole whose inner diameter gradually increases from the opening to the bottom.

[0007] Compared with the prior art, the present invention is advantageous in that the socket adopts a machined inverted cone structure (small opening inner diameter, large inner cavity inner diameter) and is slotted to ensure that each socket petal of the socket can reliably contact the pin under the action of radial pressure.

[0008] Furthermore, an elastic component is sleeved on the outer side wall of the contact plug-in end.

[0009] Compared with the prior art, the advantages of the present invention are as follows: in order to improve the conductivity, the material of the contact piece is made of high-conductivity copper. Since the contact piece is made of red copper with good conductivity and poor elasticity, the elastic component is sleeved on the outside of the contact piece. When the plug is plugged in, the jack flaps expand outward, which can enhance the elastic force, make the contact piece in close contact, reduce the contact resistance, and restrain the elastic deformation of the contact piece during plugging and unplugging, avoid permanent deformation of the contact piece, and thus avoid excessive resistance caused by the inability to make close contact when the two are plugged in after repeated plugging and unplugging. While extending the service life, the elastic plugging of the contact piece is achieved through radial elastic force.

[0010] Furthermore, the outer wall of the contact piece is provided with a stop protrusion for abutting against an elastic component in the corresponding connector to generate a pre-compression reaction force on the contact piece.

[0011] Compared with the prior art, the present invention is advantageous in that the pre-compression reaction force applied to the contact piece by the elastic component prevents the inclined projection from contacting the inner wall of the insertion cavity before the contact piece is inserted into place, thereby avoiding excessive wear of the contact piece during insertion.

[0012] A connector capable of transmitting large current comprises a socket insulator on which the contact piece is slidably arranged, wherein an inserting cavity of the insulator is provided with an inclined step whose inner diameter gradually decreases in a direction away from an inserting end.

[0013] Compared with the prior art, the present invention is advantageous in that a bevel protrusion is provided on the socket flap of the contact piece, and after the contact piece and the adapter contact piece are plugged in, the contact piece continues to move in the connector plug-in cavity and abuts against the bevel Tai Chi of the inner wall of the plug-in cavity, so that the contact piece presses the adapter contact piece and reduces the contact resistance. At the same time, because the bevel step presses the socket flap only after the contact piece and the adapter contact piece are plugged in, wear caused by excessive pressure between the contact piece and the adapter contact piece is avoided.

[0014] Furthermore, an elastic component is sleeved on the contact piece, one end of the elastic component abuts against the inner wall of the insertion cavity of the jack insulator, and the other end abuts against the outer wall of the contact piece to prevent the inclined step from contacting the inclined protrusion before the contact piece is inserted into place.

[0015] Compared with the prior art, the advantages of the present invention are as follows: the pre-compression reaction force applied to the contact piece by the elastic component prevents the inclined projection from contacting the inner wall of the insertion cavity before the contact piece is inserted into place, thereby avoiding excessive wear of the contact piece during insertion; when the contact piece is inserted into place, not only the outer wall of the pin contacts the inner wall of the socket, but also the end face contact is increased, and under the elastic force, the front end face of the pin contacts closely with the bottom face of the socket, thereby reducing the resistance between the pin and the socket by increasing the contact area.

[0016] Furthermore, the outer wall of the contact piece is nested with a retaining ring that is used to abut against the insulator to prevent the contact piece from falling out of the plug-in end.

[0017] Compared with the prior art, the present invention is advantageous in that the position limitation of the jack and the jack insulator is achieved through the cooperation between the retaining ring of the jack terminal and the spring II.

[0018] Furthermore, the insulator is slidably inserted into the mounting panel, and the insulator is provided with a stopping boss located on the inner side of the mounting panel to prevent the insulator from escaping from the mounting panel. The stopping boss is provided with a sliding hole axially slidably sleeved on the support screw. The support screw is fixed on the inner side of the mounting panel, and an elastic component is sleeved on the support screw, with one end of the elastic component abutting against the fixed end of the support screw and the other end abutting against the stopping boss.

[0019] Compared with the prior art, the present invention is advantageous in that: after the pin and the socket are inserted into place, as the pin continues to be pushed forward, the distance between the pin insulator and the mounting panel is reduced, the insulator moves into the mounting panel, the spring III is compressed, and an axial force is applied to the socket insulator to push outward. When the axial force is greater than the preload of the spring II, the socket insulator does not move, the pin continues to be pushed forward, pushing the socket, pushing the inclined bosses on the outer walls of each socket petal of the socket toward the inclined steps of the socket insulator, and the inclined steps apply radial pressure to the inclined bosses, causing each petal of the socket to contract inward, and at the same time Since spring II is compressed, the front end of the pin is further pressed against the bottom of the socket under the elastic force of spring II, and the radial positive pressure of the socket on the pin and the positive pressure of the front end of the pin on the bottom of the socket increase accordingly, thereby reducing the contact resistance, thereby reducing the temperature rise during high current transmission; and by providing spring III, when the insertion force of the pin is too large, spring III is first contracted to avoid applying the insertion force of the pin to spring II, thereby avoiding excessive radial positive pressure caused by the contact between the inclined protrusion and the inclined step, thereby avoiding wear when the pin and the socket are plugged together.

[0020] Furthermore, a spring bushing is nested in the sliding hole, and the support screw is slidably inserted into the spring bushing.

[0021] Compared with the prior art, the present invention is advantageous in that the spring bushing contacts the support screw, preventing shaking between the jack insulator and the support screw, while also ensuring that the support screw slides normally in the spring bushing when thrust is applied.

[0022] A connector assembly capable of realizing high current transmission comprises the above connector and an adapting connector, wherein the adapting connector is provided with plug pins.

[0023] Compared with the prior art, the present invention is advantageous in that: by providing an inclined protrusion on the socket flap of the contact piece, after the contact piece and the adapter contact piece are plugged into place, the contact piece continues to move in the connector plug-in cavity and abuts against the inner wall of the plug-in cavity, so that the contact piece presses the adapter contact piece and reduces the contact resistance. At the same time, since the inner wall of the plug-in cavity presses the socket flap only after the contact piece and the adapter contact piece are plugged into each other, wear caused by excessive pressure between the contact piece and the adapter contact piece is avoided, thereby avoiding wear after repeated plugging and unplugging of the connector and reducing the contact resistance.

[0024] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A cross-sectional view of an embodiment of a contact member capable of transmitting a large current according to the present invention;

[0026] Figure 2 for Figure 1 Left view of

[0027] Figure 3 A cross-sectional view of an embodiment of a connector assembly capable of transmitting high current according to the present invention.

[0028] [Reference Signs]

[0029] 1-pin,

[0030] 2-Nut I,

[0031] 3-pin insulator, 301-pin insertion hole, 302-pin insertion cavity,

[0032] 4-jack, 401-inverted cone blind hole, 402-spring groove, 403-inclined protrusion, 404-stop protrusion, 405-jack flap,

[0033] 5- Spring I,

[0034] 6- Spring II,

[0035] 7-Mounting panel, 701-Mounting hole

[0036] 8- Spring bushing,

[0037] 9- Spring III,

[0038] 10-Support screw,

[0039] 11-Nut II,

[0040] 12-jack insulator, 1201-jack insertion hole, 1202-jack insertion cavity, 1203-inclined step, 1204-stop boss, 1205-sliding hole,

[0041] 13-Retaining ring. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] An embodiment of a connector assembly capable of transmitting large current according to the present invention is as follows: Figures 1 to 3 As shown. The connector assembly includes a pin 1, a pin insulator 3, a jack 4, and a jack insulator 12. Each component is described with the end close to the plug end as the front end. The pin 1 is inserted into the pin insulator 3. A step is provided on the inner wall of the pin insertion hole 301 on the pin insulator 3. The step matches the protrusion on the outer wall of the pin 1. After the pin 1 is inserted into the pin insulator 3 from the front end, the step prevents the pin 1 from slipping out to the rear end of the pin insulator 3.

[0044] The outer wall of the connection part of the plug pin 1 is provided with a thread located at the rear side of the plug pin insulator 3. By connecting the nut I2 to the connection part of the plug pin 1, the plug pin 1 is prevented from slipping out to the front end of the plug pin insulator 3. After tightening the nut I2, the plug pin 1 is fixed on the plug pin insulator 3. After the plug pin 1 is inserted into the plug pin insulator 3 from the front end, the connection part of the plug pin 1 extends out of the plug pin insulator 3. By tightening the nut I2 on the connection part of the plug pin 1, the relative fixation of the plug pin 1 and the plug pin insulator 3 is achieved. At this time, the plug connection part of the plug pin 1 is located in the plug pin insertion cavity 302 at the front end of the plug pin insulator 3.

[0045] The jack 4 is inserted into the jack insertion hole 1201 of the jack insulator 12. An annular groove is provided on the outer wall of the wiring part of the jack 4. A retaining ring 13 is nested in the annular groove. After the jack 4 is inserted into the jack insertion hole 1201 from the front end, the retaining ring 13 is nested in the annular groove of the wiring part of the jack 4. The retaining ring 13 abuts against the rear end of the jack insulator 12 to prevent the jack 4 from slipping out toward the front end of the jack insulator 12. When the retaining ring 13 abuts against the rear end of the jack insulator 12, the plug-in part of the jack 4 is located in the jack insertion cavity 1202 of the jack insulator 12.

[0046] The plug-in portion of the socket 4 is provided with an inverted cone blind hole 401 extending backward from the plug-in end surface. The opening of the inverted cone blind hole 401 is chamfered, and the inner diameter of the inverted cone blind hole 401 gradually decreases from the opening to the bottom of the inverted cone blind hole 401. The side wall of the inverted cone blind hole 401 is grooved, and the side wall of the inverted cone blind hole 401 is divided into a plurality of jack petals 405 of annularly distributed and axially extending cantilever structure. The socket 4 adopts a machined inverted cone structure (smaller opening inner diameter and larger inner cavity inner diameter) and is grooved to ensure that each jack petal 405 of the socket 4 can reliably contact the pin 1 under the action of radial pressure. The outer side wall of the plug-in portion of the socket 4 is provided with a spring groove 402, a sloped protrusion 403, and a stop protrusion 404 in sequence from front to back. The spring groove 402 and the sloped protrusion 403 are both provided on the outer side wall of the socket petal 405 of the inverted cone blind hole 401. The stop protrusion 404 is a continuous annular boss or a discontinuous annularly distributed boss, which only plays a stopping role.

[0047] The material of the socket 4 is high-conductivity copper. In the present embodiment, since the socket 4 is made of copper with good conductivity and poor elasticity, the spring 15 is sleeved in the spring groove 402 outside the socket 4. When the pin 1 and the socket 4 are inserted into each other and the socket petal 405 of the inverted cone blind hole 401 expands outward, the spring 15 can enhance the elastic force of the inverted cone blind hole 401 on the pin, so that the socket 4 and the pin 1 are in close contact, the contact resistance is reduced, and the elastic deformation of the socket 4 during insertion and removal is restrained to avoid permanent deformation of the socket 4, thereby avoiding excessive resistance caused by the failure of the pin 1 and the socket 4 to be in close contact when the two are inserted after repeated insertion and removal. While extending the service life, the elastic insertion of the socket 4 and the pin 1 is achieved through radial elastic force.

[0048] The side of the inclined protrusion 403 toward the rear end is an inclined surface, so that the outer diameter of the inclined protrusion 403 gradually decreases from the front to the back, and the other side is a vertical surface or an inclined surface. The inner wall of the jack insertion cavity 1202 is provided with an inclined step 1203, so that the inner diameter of the front section of the jack insertion cavity 1202 is larger than the inner diameter of the rear section, and the inner diameter of the inclined step 1203 gradually decreases from the front to the back. When the pin 1 is inserted into the jack 4, the pin 1 continues to be pushed forward, so that the inclined protrusion 403 gradually contacts the inclined step 1203, so that the jack petal 405 of the inverted cone blind hole 401 of the jack 4 gradually shrinks and further presses against the pin 1, increasing the radial positive pressure between the pin 1 and the jack 4, and reducing the contact resistance between the pin 1 and the jack 4.

[0049] A step is formed between the jack insertion hole 1201 and the jack insertion cavity 1202 of the jack insulator 12, and a spring II 6 is sleeved on the outer wall of the jack 4, one end of the spring II 6 abuts on the stop protrusion 404, and the other end abuts on the step formed between the jack insertion hole 1201 and the jack insertion cavity 1202, while limiting the jack 4 from coming out of the rear end of the jack insulator 12, through the spring II 6 pushes the socket 4 to the front end, which can ensure that the inclined protrusion 403 of the socket 4 does not contact the inclined step 1203 of the socket insulator 12 in the initial state (when the pin 1 and the socket 4 are not fully inserted), so that the inclined protrusion 403 is located in front of the inclined step 1203, which can prevent the socket 4 from sliding toward the back of the socket insulator 12 during insertion, and prevent the inclined protrusion 403 from contacting and sliding with the inclined step 1203 in advance, reducing radial pressure, thereby reducing friction and wear, and avoiding increasing the insertion force between the pin 1 and the socket 4. The stop ring 13 of the socket 4 terminal cooperates with the spring II 6 to achieve the limit of the socket 4 and the socket insulator 12. By sleeved spring II 6 on socket 4 to resist the initial insertion force of pin 1, pin 1 and socket 4 are gradually plugged together. When the front end of pin 1 abuts against the bottom of inverted cone blind hole 401 of socket 4, not only the outer wall of pin 1 contacts the inner wall of socket 4, but also the end face contact is increased. Under the elastic force of spring II 6, the front end face of pin 1 contacts closely with the bottom face of socket 4. By increasing the contact area, the resistance between pin 1 and socket 4 is reduced.

[0050] In this embodiment, the jack insulator 12 is arranged on the mounting panel 7, and the jack insulator 12 is inserted into the mounting hole 701 of the mounting panel 7 from the inner side of the mounting panel 7. A stop boss 1204 is arranged at the tail of the jack insulator 12, and the stop boss 1204 abuts against the inner wall of the mounting panel 7 to prevent the jack insulator 7 from slipping out of the mounting panel 7. The support screw 10 is slidably inserted through the stop boss 1204, and the support screw 10 is fixed to the inner cavity of the mounting panel 7 through nuts II 11 on both sides of the inner end thereof and studs inserted through the end of the support screw 10. A spring III9 is ​​sleeved on the support screw 10, and the spring III9 is ​​softer than the nut II, and one end of the spring III9 abuts against the nut II 11, and the other end abuts against the stop boss 1204. In this embodiment, the stop boss 1204 is provided with a sliding hole 1205 for the support screw 10 to slide through. The front end of the sliding hole 1205 is a tapered hole matching the tapered boss at the end of the support screw 10, and the rear end is a stepped hole. The tapered boss has a blocking effect on the stop boss 1204. When the stop boss 1204 cannot be attached to the inner wall of the mounting panel 7 due to reasons such as the mounting structure, the stop boss 1204 is prevented from slipping out of the support screw 10. The spring bushing 8 is nested in the stepped hole at the rear end of the sliding hole 1205. The spring bushing 8 is an elastic bushing. The support screw 10 is inserted in the spring bushing 8. The spring bushing 8 contacts the support screw 10 to prevent shaking between the jack insulator 12 and the support screw 10. At the same time, it can also ensure that the support screw 10 slides normally in the spring bushing 8 when a thrust is applied. The spring III9 extends into the stepped hole and abuts against the spring bushing 8 on the stepped surface. After the support screw 10 is relatively fixed with the spring bushing 8, the spring III9 and the nut II 11, the spring III9 realizes the pre-pressure of the stop boss 1204 and the plug insulator 12. In this embodiment, four groups of support screws 10, spring bushings 8, springs III9 and nuts II 11 are distributed on the stop boss 1204 and are distributed circumferentially around the plug insulator 12. After the pin 1 and the socket 4 are inserted into place, since the spring III9 is ​​softer than the nut II, as the pin 1 continues to advance, the distance between the pin insulator 3 and the installation panel 7 decreases, the socket insulator 12 moves into the installation panel 7, the spring III9 is ​​compressed, and applies an axial force pushing outward to the socket insulator 12. When this axial force is greater than the preload of the spring II 6, the socket insulator 12 does not move, the pin 1 continues to advance, pushing the socket 4, pushing the inclined boss 403 of the outer wall of each socket petal 405 of the socket 4 toward the inclined step 1203 of the socket insulator 12, and the inclined step 1203 applies radial pressure to the inclined boss 403, causing the socket petals to contract inwardly. At the same time, since the spring II 6 is compressed, the spring II Under the elastic force of 6, the front end of the pin 1 is further pressed against the bottom of the socket 4, and the radial positive pressure of the socket 4 on the pin 1 and the positive pressure of the front end of the pin 1 on the bottom of the socket 4 increase accordingly, thereby reducing the contact resistance, thereby reducing the temperature rise during high current transmission.And by setting spring III9, when the insertion force of pin 1 is too large, spring III9 will be contracted first to avoid applying the insertion force of pin 1 to spring II 6, thereby avoiding excessive radial positive pressure caused by contact between inclined protrusion 403 and inclined step 1203, thereby avoiding wear when pin 1 is inserted into socket 4.

[0051] When the socket insulator 12 and the pin insulator 3 are guided for insertion, after the pin 1 is inserted into the socket 4, with the assistance of the spring I 5, the socket petals 405 of the socket 4 undergo elastic deformation to ensure the contact between the inner wall of the socket 4 and the pin 1; the pin 1 is inserted into the bottom of the socket 4 to achieve double contact; as the head seat continues to be inserted and as the distance between the plates decreases, the elastic force of the spring III9 on the socket insulator 12 is converted into the insertion force of the head seat, and the front end of the pin 1 remains in contact with the bottom of the socket 4. When the elastic force of the spring III9 is ​​greater than the preload of the spring II 6, the inclined boss 403 of the socket 4 moves toward the rear end along the socket insertion cavity 1202 of the socket insulator 12 and contacts the inclined step 1203. The inclined step 1203 generates radial pressure on the inclined boss 403, causing the socket petals 405 of the socket to shrink inwardly. At the same time, due to the compression of the spring II 6, the spring II Under the action of the elastic force of 6, the front end of the pin 1 is further pressed against the bottom of the hole 4, and then the head seat is fixed, thereby increasing the positive pressure of the front end of the hole 4 on the pin 1 and the contact pressure of the front end face of the pin 1 with the bottom end face of the hole 4, which can further reduce the contact resistance, thereby reducing the heat generated when the current is passed, and realizing the large current transmission function.

[0052] After the pin 1 and the socket 4 are plugged into place, the elastic force of the spring III9 and the spring II6 is overcome, so that the inclined boss 403 of the socket 4 and the inclined step 1203 of the socket insulator 12 cooperate to shrink the socket 4, increase the radial positive pressure of the contact member (including the pin 1 and the socket 4), and at the same time, the front end of the pin 1 presses against the bottom of the socket 4, and the double contact pressing is realized to achieve low contact resistance. Moreover, when the inclined step 1203 applies radial pressure to the socket flap 405, the pin 1 and the socket 4 are already plugged into place, and the relative position does not change, so that the large friction generated when the two move relative to each other under large radial pressure is avoided, thereby reducing wear and extending the service life. When plugging in, since the radial positive pressure can be further applied by the inclined boss 403 and the inclined step 1203 after plugging in, the spring I5 can have a small elastic force, and the socket flap 405 and the spring I5 sleeved on the outside can be pressed. 5. Make the pin 1 and the socket have a relatively low initial positive pressure of the contact parts to avoid greater wear and tear, which can increase the plug-in and pull-out life of the connector.

[0053] In other embodiments of a connector assembly capable of transmitting large current according to the present invention, the fixing component between the pin 1 and the pin insulator 3 can be replaced by a washer 13 instead of the nut 12, or the pin 1 and the pin insulator 3 can be directly fixed as one.

[0054] In other embodiments of a connector assembly capable of transmitting large current according to the present invention, the fixing component between the socket 4 and the socket insulator 12 may be replaced by a nut 12 instead of a washer 13.

[0055] In other embodiments of a connector assembly of the present invention that can realize high current transmission, the socket insulator 12 can be set on the installation panel 7 of other structures, and the socket insulator 12 can be directly fixed to the installation panel 7, and the supporting screw 10, spring bushing 8, spring III9 and nut II 11 and other components in the installation panel 7 can be eliminated. At this time, the elastic coefficient of spring II 6 can be increased to avoid contact between the inclined step 1203 and the inclined protrusion 403 during the insertion process of the pin 1 and the socket; or when the pin 1 is inserted into the socket, the force is evenly applied to avoid pushing the spring II 6.

[0056] In other embodiments of a connector assembly capable of transmitting large current according to the present invention, the socket 4 can be applied to connectors of other structures. For example, in other connectors, the spring II 6 can be eliminated, and at least two elastic buckles are distributed on the inner wall of the mounting hole of the socket insulator 12 in the insertion direction. When the pin 1 is plugged into the socket 4, the socket 4 can be fixedly connected to the socket insulator 12 through one of the elastic buckles. During the plugging process, the relative positions of the socket 4 and the socket insulator 12 remain unchanged. After the pin 1 is plugged into place, the socket 4 is forced to overcome the elastic force of the elastic buckle, so that the socket 4 continues to move in the mounting hole of the socket insulator 12. After the inclined step 1203 abuts against the inclined protrusion 403, the socket 4 is fixedly connected to the other elastic buckle of the socket insulator 12.

[0057] In other embodiments of a connector assembly capable of transmitting large currents according to the present invention, the spring 15 can be replaced by a closely wound spring or other elastic component capable of elastically contracting the socket flap 405, or the elastic component can be eliminated and the socket 4 can be made of a conductive material with better elasticity.

[0058] In other embodiments of a connector assembly capable of transmitting large currents according to the present invention, spring II 6 and spring III 9 may be replaced by other elastic components capable of applying axial force, such as a stacked spring.

[0059] In other embodiments of a connector assembly of the present invention that can achieve high current transmission, the inner diameter of the jack mating cavity 1202 of the jack insulator 12 gradually decreases in the direction from front to back, and the shape of the inclined protrusion 403 can be set to an outwardly convex hemisphere or other shape, as long as the jack 4 can apply radial pressure to the jack flap 405 when moving in the jack mating cavity 1202.

[0060] In other embodiments of a connector assembly capable of transmitting large current according to the present invention, the inverted cone blind hole 401 may be configured as a straight blind hole.

[0061] An embodiment of a connector capable of transmitting high current of the present invention comprises a jack 4, a jack insulator 12, a spring I 5, a spring II 6, a mounting panel 7, a spring bushing 8, a spring III 9, a support screw 10, a nut II 11, and a washer 13 in the above-mentioned connector assembly capable of transmitting high current, and the matching relationship of the above-mentioned components is the same as the matching relationship of the corresponding components in a connector assembly capable of transmitting high current, which will not be repeated here.

[0062] An embodiment of a contact member capable of transmitting large current according to the present invention is the above-mentioned connector assembly capable of transmitting large current or a socket 4 in a connector capable of transmitting large current.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A contact piece capable of transmitting large current, comprising a blind hole extending from a plug-in end face, wherein the side wall of the blind hole is grooved so that the plug-in portion of the contact piece forms a plurality of circumferentially distributed and axially extending cantilevered plug-in petals (405), characterized in that: The outer side wall of the socket flap (405) is provided with an inclined protrusion (403) capable of abutting against the inner wall of the connector plug-in cavity so that the socket flap (405) applies radial pressure to the matching contact piece.

2. A contact piece capable of transmitting large current according to claim 1, characterized in that: The blind hole is an inverted cone blind hole (401) whose inner diameter gradually increases from the opening to the bottom.

3. A contact piece capable of transmitting large current according to claim 1, characterized in that: An elastic component is sleeved on the outer side wall of the contact plug-in end.

4. A contact piece capable of transmitting large current according to claim 1, characterized in that: The outer wall of the contact piece is provided with a stop protrusion (404) for abutting against an elastic component in a corresponding connector to generate a pre-compression reaction force on the contact piece.

5. A connector capable of transmitting high current, characterized in that: It comprises a socket insulator (12) on which the contact piece according to any one of claims 1 to 4 is slidably provided, wherein an inserting cavity of the insulator is provided with an inclined step (1203) whose inner diameter gradually decreases in a direction away from the inserting end.

6. A connector capable of transmitting large current according to claim 5, characterized in that: An elastic component is sleeved on the contact piece, one end of the elastic component abuts against the inner wall of the insertion cavity of the jack insulator, and the other end abuts against the outer wall of the contact piece, so as to prevent the inclined step (1203) from contacting the inclined protrusion (403) before the contact piece is inserted into place.

7. A connector capable of transmitting large current according to claim 5, characterized in that: The outer wall of the contact piece is nested with a retaining ring (13) used to abut against the insulator to prevent the contact piece from falling out of the plug-in end.

8. A connector capable of transmitting large current according to claim 5, characterized in that: The insulator is slidably inserted into the mounting panel (7), and the insulator is provided with a stop boss (1204) located on the inner side of the mounting panel (7) to prevent the insulator from slipping off the mounting panel (7). The stop boss (1204) is provided with a sliding hole (1205) axially slidably sleeved on the support screw (10). The support screw (10) is fixed on the inner side of the mounting panel (7), and an elastic component is sleeved on the support screw (10), with one end of the elastic component abutting against the fixed end of the support screw (10) and the other end abutting against the stop boss (1204).

9. A connector capable of transmitting large current according to claim 8, characterized in that: The spring bushing (8) is nested in the sliding hole (1205), and the support screw (10) is slidably inserted into the spring bushing (8).

10. A connector assembly capable of transmitting high current, characterized in that: It comprises the connector and the adapter connector as described in any one of claims 5 to 9, wherein the adapter connector is provided with a pin (1).

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