Contact element, contact assembly and connector

Abstract

The invention relates to the technical field of conductive connecting devices, in particular to a contact piece, a contact assembly and a connector. The contact piece comprises a barrel, at least one row of contact reeds are arranged on the barrel wall of the barrel, the contact reeds overhang around the axis of the barrel, the tail ends of the contact reeds are arranged at included angles with the axial direction of the barrel, the contact reeds in the same row are arranged at intervals in the axial direction of the barrel, and seams penetrating through the barrel wall are formed in the two sides of the side-by-side direction of the contact reeds. The contact reed is provided with a contact part which is used for forming conductive contact when the contact piece is plugged with an adaptive conductor, and the axial direction of the cylinder body is consistent with the plugging direction of the contact piece. When the contact piece and the adaptive conductor are plugged along the axial direction of the cylinder body, the adaptive conductor can be contacted with the contact spring sheets in sequence from one end of the cylinder body, and not all the contact spring sheets are contacted with the adaptive conductor at the same time, so that the moment in the plugging process is relatively soft, a relatively large moment does not need to be kept all the time, the resistance sense is small, and labor-saving operation is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of conductive connection devices, and in particular to a contact piece, a contact assembly and a connector. Background Art

[0002] The charging connector or the battery replacement connector usually adopts the adaption and plugging of the pin contact and the socket contact to transmit current. The basic structure of the socket contact currently used can be referred to the Chinese utility model patent with the authorization announcement number CN220652390U. A rolled and welded female terminal is disclosed. The female terminal is a contact assembly, which includes a plug-in end and a wiring end. The plug-in end includes a welding end and a plurality of contact cantilevers. The contact cantilever is cantilevered forward based on the welding end. The welding end is welded to the wiring end. The wiring end is connected to the wire or copper bus. The contact cantilever constitutes a contact spring that can be elastically deformed. Each contact cantilever is arranged at intervals in the circumferential direction and encloses a cavity for inserting the adapter pin. The cavity forms a socket so that the plug-in end constitutes a socket contact. When the pin is inserted into the socket, the pin squeezes each contact cantilever so that the contact cantilever elastically deforms outward and forms an elastic conductive contact with the pin.

[0003] As the current level of the connector continues to increase, the requirements for the conductive performance of the contact parts are also getting higher and higher. In order to meet the flow requirements of large currents, the socket contacts are processed with relatively thick strips. The thicker the material, the thicker the thickness of the contact cantilever will be, and the greater the force required to elastically deform the contact cantilever. In this way, when the pin is inserted into the socket, the force that causes the circumferentially distributed contact cantilevers to expand and deform synchronously is relatively large. There will always be a large friction between the socket contact and the pin contact during the plugging and unplugging process, which requires a relatively large plugging and unplugging torque. The resistance is strong during plugging and unplugging, and it is more laborious. Summary of the invention

[0004] The object of the present invention is to provide a contact piece to solve the problem that the current contact piece is prone to large forces generated by elastic deformation of each contact spring during plugging and unplugging operations, making the plugging and unplugging operations more laborious; the object of the present invention is also to provide a contact assembly and a connector to solve the above problems.

[0005] The technical solution of the contact piece of the present invention is: A contact piece comprises a cylinder body, on the cylinder wall of which at least one row of contact springs is arranged, the contact springs are cantilevered around the cylinder axis, the ends of the contact springs are arranged at an angle to the axial direction of the cylinder body, the contact springs in the same row are arranged at intervals in the axial direction of the cylinder body, and slits penetrating the cylinder wall are formed on both sides of the contact springs in the side-by-side direction, the contact springs are provided with contact portions for forming conductive contact when the contact piece is plugged in with a matching conductor, and the axial direction of the cylinder body is consistent with the plugging direction of the contact piece.

[0006] Beneficial effect: The present invention makes element changes on the basis of the contact piece in the prior art, so that the contact spring is cantilevered around the axis of the cylinder, and the end of the contact spring is set at an angle to the axial direction of the cylinder. The contact springs in the same row are arranged at intervals in the axial direction of the cylinder, so that the circumferential size of the cylinder is used to form a cantilevered contact spring, and the axial size of the cylinder is used to arrange the contact springs. While meeting the needs of contact spring arrangement, when the contact piece and the adapter conductor are plugged in along the axial direction of the cylinder, the adapter conductor can form contact with each contact spring in turn from one end of the cylinder, and not all contact springs form contact with the adapter conductor at the same time. During the insertion process, the number of contact springs in contact with the adapter conductor increases successively, and during the removal process, the number of contact springs in contact with the adapter conductor decreases successively. The torque during the insertion and removal process is relatively gentle, and there is no need to maintain a large torque all the time. The resistance is small, which is conducive to labor-saving operation.

[0007] Furthermore, the contact portions of two adjacent contact springs in the same row are staggered in the axial direction of the cylinder.

[0008] Furthermore, the ends of the contact springs in the same row are staggered in the axial direction of the cylinder, the contact portions are arranged at the ends of the contact springs, and the projections of the contact springs in the same row in the axial direction of the cylinder partially overlap.

[0009] Furthermore, the ends of each contact spring in the same row are arranged in a stepped manner, the axial ends of the cylinder are respectively a plug-in end and a fixed end, and the ends of the contact springs close to the plug-in end of two adjacent contact springs in the same row protrude from the ends of the contact springs close to the fixed end along the contact spring overhang direction.

[0010] Furthermore, the contact springs are arranged in more than two rows, and the contact springs in each row are arranged at intervals in the circumferential direction of the cylinder body. The number of contact springs in each row is the same and their positions in the circumferential direction of the cylinder body correspond one to one.

[0011] Furthermore, the overhanging directions of the contact springs are consistent.

[0012] Furthermore, the cylinder has an insertion port for inserting the adapter conductor, and the contact spring closest to the insertion port in the same row of contact springs is spaced apart from the end surface of the end where the insertion port is located in the axial direction of the cylinder.

[0013] The technical solution of the contact assembly of the present invention is: A contact assembly comprises a connector and a contact piece, wherein the connector is used to connect a wire or a conductive row, the contact piece is fixed to the connector, and the contact piece comprises a cylinder body, on the cylinder wall of which at least one row of contact springs is arranged, the contact springs are cantilevered around the cylinder axis, the ends of the contact springs are arranged at an angle to the axial direction of the cylinder body, the contact springs in the same row are arranged at intervals in the axial direction of the cylinder body, and gaps penetrating the cylinder wall are formed on both sides of the contact springs in the side-by-side direction, the contact springs are provided with a contact portion for forming a conductive contact when the contact piece is plugged into an adapting conductor, and the axial direction of the cylinder body is consistent with the plugging direction of the contact piece.

[0014] Beneficial effect: The present invention makes element changes on the basis of the contact assembly in the prior art, so that the contact spring is cantilevered around the axis of the cylinder, the end of the contact spring is set at an angle to the axial direction of the cylinder, and the contact springs in the same row are arranged at intervals in the axial direction of the cylinder, so that the circumferential size of the cylinder is used to form the cantilevered contact spring, and the axial size of the cylinder is used to arrange the contact springs, which meets the needs of contact spring arrangement. When the contact piece and the adapter conductor are plugged in along the axial direction of the cylinder, the adapter conductor can form contact with each contact spring in turn from one end of the cylinder, and not all contact springs form contact with the adapter conductor at the same time. During the insertion process, the number of contact springs in contact with the adapter conductor increases successively, and during the removal process, the number of contact springs in contact with the adapter conductor decreases successively. The torque during the insertion and removal process is relatively gentle, and there is no need to maintain a large torque all the time. The resistance is small, which is conducive to labor-saving operation.

[0015] Furthermore, the contact portions of two adjacent contact springs in the same row are staggered in the axial direction of the cylinder.

[0016] Furthermore, the ends of the contact springs in the same row are staggered in the axial direction of the cylinder, the contact portions are arranged at the ends of the contact springs, and the projections of the contact springs in the same row in the axial direction of the cylinder partially overlap.

[0017] Furthermore, the ends of each contact spring in the same row are arranged in a stepped manner, the axial ends of the cylinder are respectively a plug-in end and a fixed end, and the ends of the contact springs close to the plug-in end of two adjacent contact springs in the same row protrude from the ends of the contact springs close to the fixed end along the contact spring overhang direction.

[0018] Furthermore, the contact springs are arranged in more than two rows, and the contact springs in each row are arranged at intervals in the circumferential direction of the cylinder body. The number of contact springs in each row is the same and their positions in the circumferential direction of the cylinder body correspond one to one.

[0019] Furthermore, the overhanging directions of the contact springs are consistent.

[0020] Furthermore, the cylinder has an insertion port for inserting the adapter conductor, and the contact spring closest to the insertion port in the same row of contact springs is spaced apart from the end surface of the end where the insertion port is located in the axial direction of the cylinder.

[0021] Furthermore, the contact assembly includes an outer sheath sleeved outside the cylinder, and the outer sheath is provided with retaining springs corresponding to the contact springs one by one, and the retaining springs are used to deform along with the contact springs when they are deformed to provide positive pressure to the contact springs.

[0022] The technical solution of the connector of the present invention is: A connector includes a contact assembly, the contact assembly includes a connector and a contact piece, the connector is used to connect a wire or a conductive row, the contact piece is fixed to the connector, the contact piece includes a cylinder, at least one row of contact springs are arranged on the cylinder wall of the cylinder, the contact springs are cantilevered around the axis of the cylinder, the ends of the contact springs are arranged at an angle to the axial direction of the cylinder, the contact springs in the same row are arranged at intervals in the axial direction of the cylinder, and gaps penetrating the cylinder wall are formed on both sides of the contact springs in the side-by-side direction, the contact springs are provided with a contact portion for forming a conductive contact when the contact piece is plugged into an adapter conductor, and the axial direction of the cylinder is consistent with the plugging direction of the contact piece.

[0023] Beneficial effect: The present invention makes element changes on the basis of the connector in the prior art, so that the contact spring is cantilevered around the axis of the cylinder, and the end of the contact spring is set at an angle to the axial direction of the cylinder. The contact springs in the same row are arranged at intervals in the axial direction of the cylinder, so that the circumferential size of the cylinder is used to form the cantilevered contact spring, and the axial size of the cylinder is used to arrange the contact springs. While meeting the needs of contact spring arrangement, when the contact piece and the adapter conductor are plugged in along the axial direction of the cylinder, the adapter conductor can form contact with each contact spring in turn from one end of the cylinder, and not all contact springs form contact with the adapter conductor at the same time. During the insertion process, the number of contact springs in contact with the adapter conductor increases successively, and during the removal process, the number of contact springs in contact with the adapter conductor decreases successively. The torque during the insertion and removal process is relatively gentle, and there is no need to maintain a large torque all the time. The resistance is small, which is conducive to labor-saving operation.

[0024] Furthermore, the contact portions of two adjacent contact springs in the same row are staggered in the axial direction of the cylinder.

[0025] Furthermore, the ends of the contact springs in the same row are staggered in the axial direction of the cylinder, the contact portions are arranged at the ends of the contact springs, and the projections of the contact springs in the same row in the axial direction of the cylinder partially overlap.

[0026] Furthermore, the ends of each contact spring in the same row are arranged in a stepped manner, the axial ends of the cylinder are respectively a plug-in end and a fixed end, and the ends of the contact springs close to the plug-in end of two adjacent contact springs in the same row protrude from the ends of the contact springs close to the fixed end along the contact spring overhang direction.

[0027] Furthermore, the contact springs are arranged in more than two rows, and the contact springs in each row are arranged at intervals in the circumferential direction of the cylinder body. The number of contact springs in each row is the same and their positions in the circumferential direction of the cylinder body correspond one to one.

[0028] Furthermore, the overhanging directions of the contact springs are consistent.

[0029] Furthermore, the cylinder has an insertion port for inserting the adapter conductor, and the contact spring closest to the insertion port in the same row of contact springs is spaced apart from the end surface of the end where the insertion port is located in the axial direction of the cylinder.

[0030] Furthermore, the contact assembly includes an outer sheath sleeved outside the cylinder, and the outer sheath is provided with retaining springs corresponding to the contact springs one by one, and the retaining springs are used to deform along with the contact springs when they are deformed to provide positive pressure to the contact springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of embodiment 1 of the contact assembly of the present invention; Figure 2 for Figure 1 A schematic diagram of the contact parts in FIG. Figure 3 for Figure 2 Schematic diagram of the contact reed in; Figure 4 for Figure 2 A planar expansion schematic diagram of the contact member in FIG. Figure 5 for Figure 2 Schematic diagram of the contact piece and the pin being plugged in; Figure 6 for Figure 1 A schematic diagram of the matching structure of the outer sheath and the contact piece; Figure 7 for Figure 6 A schematic diagram of an outer sheath in FIG. Figure 8 for Figure 6 A schematic cross-sectional view of the outer sheath and the contact fitting portion; Fig. 9 for Figure 1 Schematic diagram of the connecting parts in FIG. Fig.10 It is a planar unfolded schematic diagram of a contact member in Embodiment 2 of a contact assembly of the present invention; Fig.11 It is a planar unfolded schematic diagram of a contact member in Embodiment 3 of a contact assembly of the present invention; Fig.12 It is a schematic plan view of the contact member in the fourth embodiment of the contact assembly of the present invention.

[0032] In the figure: 1. contact piece; 11. contact spring; 12. limiting groove; 2. outer sheath; 21. retaining spring; 22. limiting claw; 23. inward-turning claw; 3. connecting piece; 31. socket section; 4. pin. DETAILED DESCRIPTION

[0033] When the contact piece of the present invention is plugged into the adapter conductor, the adapter conductor can contact each contact spring piece in sequence from one end of the contact piece. Not all contact spring pieces contact the adapter conductor at the same time. There is no need to maintain a large torque all the time, the resistance is small, and the operation is labor-saving.

[0034] Embodiment 1 of the contact assembly of the present invention: The contact assembly includes a contact piece and a connector. The connector is used to connect a wire or a conductive row. The contact piece is used to plug and match with a matching conductor to form a conductive contact. The contact piece and the connector are fixedly connected. The contact piece includes a cylinder. The cylinder wall of the cylinder is provided with at least one row of contact springs. The contact springs are suspended around the axis of the cylinder. The ends of the contact springs are arranged at an angle to the axial direction of the cylinder. The contact springs in the same row are arranged at intervals in the axial direction of the cylinder. The contact springs are provided with a contact portion for forming a conductive contact when the contact piece is plugged with the matching conductor. The axial direction of the cylinder is consistent with the plugging direction of the contact piece. The circumferential dimension of the cylinder is utilized to form an overhanging contact spring, and the axial dimension of the cylinder is utilized to arrange the contact springs. While meeting the need for contact spring arrangement, when the contact piece and the adapter conductor are plugged in along the axial direction of the cylinder, the adapter conductor can sequentially form contact with the contact springs from one end of the cylinder. During the insertion process, the number of contact springs in contact with the adapter conductor increases sequentially, and during the removal process, the number of contact springs in contact with the adapter conductor decreases sequentially. The torque during the insertion and removal process is relatively gentle, and the friction between the adapter conductor and the contact piece is variable. It is not necessary to maintain a large torque during the insertion and removal process, and the resistance felt by the operator is relatively small, which is conducive to labor-saving operation.

[0035] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the contact assembly includes a contact piece 1, an outer sheath 2 and a connector 3. The contact piece 1 is a socket contact piece. One end of the contact piece 1 is for the matching pin 4 to be inserted, and the other end is fixed to one end of the connector 3. The other end of the connector 3 is used to connect a wire or a conductive bar. A contact spring 11 is provided on the contact piece 1. When the pin 4 is inserted into the contact piece 1, the pin 4 presses the contact spring 11 to deform and form an elastic pressing contact. The outer sheath 2 is provided on the outer jacket of the contact piece 1. The outer sheath 2 is provided with a retaining spring 21 corresponding to the contact spring 11 of the contact piece 1. The retaining spring 21 has good elasticity and can provide positive pressure to the contact spring 11, so that the contact piece 1 and the pin 4 can be reliably contacted.

[0036] The contact piece 1 includes a cylinder body, and contact springs 11 arranged in rows are provided on the cylinder wall of the cylinder body. The contact springs 11 in the same row are arranged at intervals in the axial direction of the cylinder body. The contact piece 1 is a cylindrical structure to form a circular plug hole. The axial direction of the contact piece 1 is the axial direction of the cylinder body, and the circumferential direction of the contact piece 1 is the circumferential direction of the cylinder body. The contact springs 11 are suspended around the axis of the cylinder body. The end of the contact spring 11 is set at an angle to the axial direction of the cylinder body. The end of the contact spring 11 is directed, that is, the end face of the end is directed, toward one side of the overhanging direction. In this embodiment, the end of the contact spring 11 is directed perpendicular to the axial direction of the cylinder body to facilitate processing and manufacturing. The contact spring 11 is a bent cantilever structure. The main part of the contact spring 11 is bent and flush with the cylinder wall. The cantilevered end of the contact spring 11 is provided with an inner folding section that is bent relative to its main part toward the inner hole of the contact piece 1. The inner folding section is a straight section. The inner folding section protrudes inward to contact with the pin 4 when the pin 4 is inserted into the inner hole of the contact piece 1. The pin 4 constitutes an adapting conductor. The inner side surface of the inner folding section constitutes a contact portion for forming a conductive contact when the contact piece 1 is plugged with the adapting conductor. The plugging and unplugging direction of the pin 4 relative to the contact piece 1 is consistent with the axial direction of the contact piece 1. In the process of the pin 4 being inserted into the contact piece 1, the number of contact springs 11 in contact with the pin 4 increases successively. In the process of the pin 4 being pulled out of the contact piece 1, the number of contact springs 11 in contact with the pin 4 decreases successively. The torque during the plugging and unplugging process is relatively gentle. All contact springs 11 do not form contact with the pin 4 at the same time, thereby avoiding maintaining a large torque during the plugging and unplugging process, and saving labor. In other embodiments, the inwardly folded section may also be a curved section that bends inwardly. In other embodiments, the contact portion may also be arranged in the middle of the contact spring in the length direction.

[0037] The root of the contact 1 is integrally connected to the main body of the contact 1. The contact 1 is formed by stamping and rolling a strip. Figure 4 , the strip material for making the contact piece 1 is punched out to form a portion forming a contact spring 11, and the cantilevered direction of the cantilevered portion of the contact spring 11 is perpendicular to the width direction of the strip material. After punching, the outer material of the contact spring is removed, so that the two sides of the contact spring in the parallel direction form a slit penetrating the cylinder wall, and the outer slit of the contact spring forms an elastic cantilever structure. The two sides of the contact spring in the parallel direction are the two sides of the contact spring in the width direction, and the width direction of the contact spring is consistent with the width direction of the strip material. The contact springs 11 in the same row are arranged in parallel and arranged at intervals along the width direction of the strip material. The width direction of the strip material is used to form the axial direction of the contact piece 1 after rolling, and the two ends of the strip material in the length direction are used to be fixedly connected by welding during rolling. The end of a part of the contact spring 11 protrudes from one end in the length direction of the strip material, and the other end in the length direction of the strip material is provided with an avoidance notch to avoid the protruding part of the corresponding contact spring 11, which can save materials and avoid the radial size of the contact piece 1 from being too large.

[0038] A plurality of contact springs 11 are arranged in the same row at intervals along the axial direction of the contact member 1, and the contact portions of the contact springs 11 in the same row are staggered in the axial direction of the contact member 1, so that during the insertion and removal of the pin 4, the contact springs 11 contact the pin 4 at different positions on the circumference to avoid excessive wear caused by contact with the same position. In this embodiment, there are five contact springs 11 in the same row, and in other embodiments, two contact springs can be arranged in a row as required.

[0039] The ends of the contact springs 11 in the same row are staggered in the axial direction of the contact piece 1, and the contact portion is arranged at the ends of the contact springs 11. The projections of the contact springs 11 in the same row in the axial direction of the cylinder overlap, so that the contact springs 11 are conveniently used to utilize the longer overhang length of the contact springs 11 to cause elastic deformation when the pin 4 presses against the contact portion of the contact springs 11, and at the same time, avoid the contact springs 11 in the same row from occupying too much space in the circumferential direction of the contact piece 1. The ends of the contact springs 11 in the same row are arranged in a stepped manner, and the axial ends of the contact piece 1 are respectively a plug-in end and a fixed end. The plug-in end is provided with an insertion port for the pin 4 to be inserted, and the fixed end is fixed to the connector 3. The ends of the contact springs 11 close to the plug-in end of any two adjacent contact springs 11 in the same row protrude from the ends of the contact springs 11 close to the fixed end along the overhang direction of the contact springs 11, so that the contact springs 11 are staggered in sequence to the same side, which is convenient for typesetting processing.

[0040] In this embodiment, the contact springs 11 are provided in two rows, and the two rows of contact springs 11 are arranged at intervals in the circumferential direction of the contact member 1. The number of contact springs 11 in each row is the same and the positions in the circumferential direction of the contact member 1 correspond one to one. The two rows of contact springs 11 can form more contact points, which is conducive to improving the conductive performance. The adjacent two contact springs 11 in different rows are directly opposite in the circumferential direction of the contact member 1 to avoid increasing the axial size of the contact member 1. In other embodiments, only one row of contact springs can be provided, or three rows of contact springs can be provided if the size allows. In other embodiments, the two rows of contact springs can also be staggered in the circumferential direction of the contact member.

[0041] During the process of inserting the pin 4 into the contact piece 1, it contacts two contact springs 11 every time it is inserted a certain distance. In the initial stage, the number of contact springs 11 contacted is small, and the total positive pressure of the contact springs 11 on the pin 4 is small. Accordingly, the overhang length of the corresponding contact springs 11 does not need to be set very long to meet the need for a soft touch during the plugging and unplugging process.

[0042] The contact springs 11 are cantilevered in the same direction, all toward the same side of the contact member 1, for easy layout processing. The cantilever length of the contact spring 11 can be changed according to the specifications of the jack. In other embodiments, two adjacent contact springs can also be cantilevered toward opposite sides.

[0043] The insertion port of the contact 1 faces away from the connector 3. The contact spring 11 closest to the insertion port in the same row of contact springs 11 is spaced apart from the end face of the plug end where the insertion port is located in the axial direction of the contact 1. The edge of the insertion port is an annular edge, so that the main body of the contact 1 has a portion that blocks the contact spring 11 in the insertion direction, so that the edge of the insertion port can be used to guide the insertion of the pin 4, avoiding the pin 4 from vertically hitting the contact spring 11, which is conducive to smooth plugging. In other embodiments, when the pin and the socket are easy to align, the contact spring closest to the plug end can also be exposed at the insertion port.

[0044] Combination Figure 6 , Figure 7 , Figure 8 The outer sheath 2 is adapted to the contact piece 1. The outer sheath 2 is provided with a retaining spring 21 corresponding to the contact spring 11. The arrangement of the retaining spring 21 on the outer sheath 2 is consistent with the arrangement of the contact spring 11 on the contact piece 1. The outer sheath 2 is also made by stamping and rolling. In order to have better conductivity, the contact piece 1 generally uses copper. The contact spring 11 formed of copper is affected by the material properties and is prone to creep during the flow process, which reduces the contact force between the contact spring 11 and the pin 4 and affects the conductivity of the contact part. By arranging the outer sheath 2 outside the contact piece 1, the outer sheath 2 is made of stainless steel, has good elasticity, and is not allowed to creep. When the contact spring 11 is deformed, the retaining spring 21 is deformed to provide positive pressure to the contact spring 11, which can slow down the creep of the contact spring 11. In other embodiments, the outer sheath may not be provided as needed.

[0045] The outer sheath 2 is fixed to the contact piece 1, and a limiting groove 12 is provided at the fixed end of the contact piece 1. A limiting claw 22 corresponding to the limiting groove 12 is provided on the outer sheath 2, and an end of the outer sheath 2 corresponding to the plug-in end of the contact piece 1 is provided with an inward-turned claw 23. There are multiple inward-turned claws 23 along the circumference of the outer sheath 2. When the outer sheath 2 is installed on the contact piece 1, the end opening of the outer sheath 2 away from the inward-turned claw 23 is sleeved onto the contact piece 1 until the inward-turned claw 23 is stopped by the end face of the plug-in end of the contact piece 1, and the limiting claw 22 is radially corresponding to the limiting groove 12, and then the limiting claw 22 is stamped to make it snap into the limiting groove 12 to be fixed, thereby ensuring the axial position and circumferential position of the outer sheath 2 relative to the contact piece 1, so that the retaining spring 21 is correspondingly abutted against the contact spring 11.

[0046] The pin 4 is a columnar structure and one end for plugging is a pointed end, so as to guide each contact spring 11 to expand and deform outward during the insertion process, and it is not easy to interfere. The pin 4 is in vertical contact with the contact spring 11, and the contact spring 11 deforms outward, pushing the corresponding retaining spring 21 to deform outward, and the retaining spring 21 produces elastic deformation to provide positive pressure to the contact spring 11. The structure of the outer sheath 2 made of stainless steel pressing the contact spring 11 made of copper is adopted. The elastic deformation of the retaining spring 21 of the outer sheath 2 is easy to control, and it is convenient to adjust the appropriate positive pressure and size through simulation analysis. The inward claw 23 of the outer sheath 2 does not interfere with the pin 4. After the pin 4 is plugged in, the outer sheath 2 does not contact the pin 4, so that the current is transmitted through the pin 4, the contact spring 11, and the connector 3, avoiding flowing to the outer sheath 2 and increasing the contact resistance.

[0047] Combination Fig. 9 One end of the connector 3 is provided with a step shaft structure, and the smaller diameter portion of the step shaft structure forms a sleeve section 31. The fixed end of the contact 1 is sleeved on the sleeve section 31 and welded. Laser welding can be used. The welding connection can reduce the connection resistance between the contact 1 and the connector 3 and improve the current carrying capacity. The other end of the connector 3 is used to connect a wire or a conductive bar, and the conductive bar is a copper bar. The portion of the connector 3 close to the step shaft structure is provided with a ring platform structure, which is used to fix with the plastic shell of the connector.

[0048] Embodiment 2 of the contact assembly of the present invention: The difference between the contact assembly in this embodiment and the contact assembly in the above-mentioned embodiment 1 lies in the arrangement of the contact springs of the contact member. In this embodiment, Fig.10 As shown, in order to facilitate the display of the relative relationship of each contact spring 11, a planar development diagram is used for illustration, and the planar development diagram is also the basic shape of the strip. The contact springs 11 in the same row have the same overhang length and are directly opposite in the axial direction of the contact piece, and the ends of the contact springs 11 in the same row are flush. At this time, the contact portions at the ends of each contact spring 11 are directly opposite in the axial direction of the contact piece instead of being staggered, and the projections of the contact springs 11 in the same row in the axial direction of the contact piece completely overlap. In other embodiments, the contact portions of different contact springs can also be arranged at different positions in the direction of the overhang length of the contact springs, thereby achieving staggered contact portions of different contact springs.

[0049] Embodiment 3 of the contact assembly of the present invention: The difference between the contact assembly in this embodiment and the contact assembly in the above-mentioned embodiment 1 lies in the arrangement of the contact springs of the contact member. In this embodiment, Fig.11 As shown, the overhang lengths of the contact springs 11 in the same row are not all the same. The contact springs 11 in the same row are long and short, with one specification for the long ones and another specification for the short ones, for a total of two lengths. The longer contact springs are alternately arranged with the shorter contact springs.

[0050] Embodiment 4 of the contact assembly of the present invention: The difference between the contact assembly in this embodiment and the contact assembly in the above-mentioned embodiment 1 lies in the arrangement of the contact springs of the contact member. In this embodiment, Fig.12 As shown, the overhanging lengths of the contact springs 11 in the same row are not all the same, wherein the contact spring located in the middle in the arrangement direction has the longest length, and the lengths of the contact springs on both sides thereof become shorter in sequence.

[0051] Embodiments of the contact element of the present invention: The structure of the contact member in this embodiment is the same as that of the contact member in any one of the embodiments 1 to 4 of the contact assembly, and will not be described in detail here.

[0052] Embodiments of the connector of the present invention: The connector includes a plastic shell and a contact assembly installed in the plastic shell. The contact assembly in this embodiment has the same structure as the contact assembly in any of the above-mentioned embodiments 1-4 of the contact assembly, and will not be described in detail here.

[0053] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A contact, characterized in that: The invention comprises a cylinder body, wherein at least one row of contact springs (11) is arranged on the cylinder wall of the cylinder body, the contact springs are cantilevered around the cylinder axis, the ends of the contact springs are arranged at an angle to the axial direction of the cylinder body, the contact springs (11) in the same row are arranged at intervals in the axial direction of the cylinder body, and slits penetrating the cylinder wall are formed on both sides of the contact springs in the parallel direction, the contact springs (11) are provided with contact portions for forming conductive contact when the contact piece (1) is plugged into a matching conductor, and the axial direction of the cylinder body is consistent with the plugging direction of the contact piece.

2. The contact piece according to claim 1, characterized in that: The contact parts of two adjacent contact spring sheets (11) in the same row are staggered in the axial direction of the cylinder.

3. The contact piece according to claim 2, characterized in that: The ends of the contact springs (11) in the same row are staggered in the axial direction of the cylinder, the contact portions are arranged at the ends of the contact springs (11), and the projections of the contact springs (11) in the same row in the axial direction of the cylinder partially overlap.

4. The contact piece according to claim 3, characterized in that: The ends of the contact springs (11) in the same row are arranged in a stepped manner, the axial ends of the cylinder are respectively a plug-in end and a fixed end, and the ends of the contact springs (11) close to the plug-in end of two adjacent contact springs (11) in the same row protrude from the ends of the contact springs (11) close to the fixed end along the overhang direction of the contact springs (11).

5. The contact according to any one of claims 1 to 4, characterized in that: The contact springs (11) are arranged in more than two rows, and the contact springs (11) in each row are arranged at intervals in the circumferential direction of the cylinder body. The number of the contact springs (11) in each row is the same and their positions in the circumferential direction of the cylinder body correspond one to one.

6. The contact according to any one of claims 1 to 4, characterized in that: The overhanging directions of the contact springs (11) are consistent.

7. The contact according to any one of claims 1 to 4, characterized in that: The cylinder has an insertion port for inserting a matching conductor, and the contact spring (11) closest to the insertion port in the same row of contact springs (11) is spaced apart from the end surface of the end where the insertion port is located in the axial direction of the cylinder.

8. A contact assembly, characterized in that: It comprises a connecting piece (3) and a contact piece (1) according to any one of claims 1 to 7, wherein the connecting piece (3) is used to connect a wire or a conductive bar, and the contact piece (1) is fixed to the connecting piece (3).

9. The contact assembly according to claim 8, characterized in that: The contact assembly comprises an outer sleeve (2) sleeved outside the cylinder, the outer sleeve (2) being provided with retaining springs (21) corresponding one to one with the contact springs (11), the retaining springs (21) being used to deform when the contact springs (11) deform so as to provide positive pressure to the contact springs (11).

10. A connector, characterized in that: Comprising the contact assembly as claimed in claim 8 or 9.

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