30 results about "Cylindrical conductor" patented technology

Disclosed is a female terminal capable of handling a large current while suppressing an increase in the size of the female terminal, and capable of also suppressing a deformation risk at the time of manufacturing a contact spring part.　This female terminal (10) comprises a body part (20) having a connection part (16) and a cylindrical conductor part (18), and a contact forming metal fitting (22) assembled to the cylindrical conductor part (18). The cylindrical conductor part (18) has a male terminal insertion port (24), a rear opening window (26), and a to-be-welded part (38) constituted by a chamfered part provided on an inner peripheral edge part of an end surface (37) on the male terminal insertion port (24) or rear opening window (26) side. The contact forming metal fitting (22) has a frame body part (52) assembled to an inner surface (35) of a wall part of the cylindrical conductor part (18), a contact spring part (54) that protrudes toward the inside of the frame body part (52) and is brought into pressure contact with a male terminal (12) inserted from the male terminal insertion port (24), and a welded part (56) that is provided by bending the edge part of the frame body part (52) on the male terminal insertion port (24) or rear opening window (26) side along the inclination of the chamfered part. The welded part (56) and the to-be-welded part (38) are mutually overlapped and welded.

The connector terminal assembly comprises a male terminal and a female terminal matched with the male terminal, the male terminal comprises a cylindrical conductor, and the connector terminal assembly is characterized in that the female terminal comprises a circular-tube-shaped conductor of which the circumferential tube wall is provided with continuous spiral hollowed-out grooves, the inner diameter of the circular-tube-shaped conductor is smaller than the outer diameter of the cylindrical conductor, and the outer diameter of the circular-tube-shaped conductor is smaller than the outer diameter of the cylindrical conductor. A cutting groove which is communicated with or coincides with the front end of the spiral hollow-out groove is formed in the ring wall of the front end of the circular-tube-shaped conductor; when the cylindrical conductor is inserted into the circular-tube-shaped conductor, the circular-tube-shaped conductor is expanded under the action of the spiral hollow-out groove to wrap the cylindrical conductor, so that the inner circumferential surface of the circular-tube-shaped conductor is tightly attached to the outer circumferential surface of the cylindrical conductor to form surface-to-surface contact. Compared with a line contact type matching structure of a male terminal and a female terminal of a traditional connector terminal assembly, the connector terminal assembly has the advantages that contact resistance can be effectively reduced, and the current-carrying capacity of a connector is improved on the premise that materials are not changed and the material consumption is not increased.

To provide a connector module with stable EMC, a connector module includes: a receptacle on a substrate; and a plug electrically connected to the receptacle and electrically connectable to a communication cable, the plug including: a connector including an outer conductor electrically connectable to the communication cable; and a connection member connecting the connector to the receptacle and electrically connected to a ground line on the substrate, the outer conductor including: a cylindrical conductor body; and an annular flange extending from the conductor body to a radially outward side, the flange including a step on a facing side facing the connection member, the connection member being in contact with an upper level portion or a lower level portion.

The invention provides a connector capable of stably holding a cylindrical conductor in a housing hole by ensuring a press-in distance while suppressing an increase in the amount of material for forming a housing to a small extent. A connector (10) according to one aspect of the present invention is provided with: a housing (11) having a housing hole (15); and an outer conductor (21), which is a cylindrical conductor and is received in the receiving hole by being press-fitted. The housing hole of the housing has an inlet end portion (15a) and an outlet end portion (15b), the inlet end portion (15a) being one of the two axial end portions of the housing hole, and the outlet end portion (15b) being the other of the two axial end portions of the housing hole. The outer conductor is inserted into the receiving hole from the inlet end. The outer conductor has a press-fit protrusion (33) protruding toward the outer peripheral side. The outer conductor is fixed to the receiving hole by the press-fitting protrusion being recessed into the inner peripheral surface of the receiving hole. The housing hole (15) has an extension portion (17) that extends from the outlet end portion (15b) to the outside in the axial direction of the housing hole (15). The press-fit protrusion (33) is recessed into the extension (17).

This utility model relates to the field of circuit breaker technology, specifically disclosing a low-voltage distributed photovoltaic miniature circuit breaker, including a circuit breaker body and a guide rail. The clamping components include an integrally formed end plate and a flat plate. The end plate has a through hole in the middle for connection with a fixing bolt. The bottom surface of the flat plate is slidably engaged with the top and bottom surfaces of the circuit breaker body. A semi-cylindrical shell is located at the front of the lower side of the two semi-circular grooves on both sides of the middle of the bottom surface of the flat plate. A cylindrical conductor is located near the rear end of the semi-cylindrical shell. The wire end shell with an opening in the wall includes a conductive column shell and front and rear conical shells connected to the front and rear ends of the conductive column shell. A semi-circular groove and a semi-conical groove are respectively located on both sides of the middle of the top and bottom surfaces of the circuit breaker body. An arc-shaped conductive sheet is nested near the rear end of the semi-circular groove. Screw holes are located at the top and bottom of the front wall of the circuit breaker body. This design effectively solves the problems of inconvenient wiring and lack of terminal protection structure in low-voltage distributed photovoltaic miniature circuit breakers.

The utility model relates to the technical field of wires and cables, in particular to a high-power cable, which is provided with at least one core wire, the core wire is provided with a main conductor, an auxiliary conductor and an insulating sleeve, the main conductor is a hollow cylindrical conductor through which circulating cooling liquid can flow, and the left end and the right end of the main conductor are respectively a first wiring end and a second wiring end. The auxiliary conductor is provided with a winding section spirally wound on the outer wall of the main conductor and a third terminal and a fourth terminal which extend leftwards and rightwards from the left end and the right end of the winding section respectively, the first terminal and the third terminal are input ends, the second terminal and the fourth terminal are output ends, and the insulation sleeve is extruded outside the main conductor and the auxiliary conductor. According to the utility model, through the arrangement of the hollow main conductor and the spiral auxiliary conductor and through the external connection of the circulating cooling device, the cable can solve the heat dissipation problem of short-distance high-power power transmission, the spiral auxiliary conductor can improve the strength of the hollow main conductor and prevent the deformation of the pipe body, and the cooling liquid can play a role in cooling the main conductor and the auxiliary conductor.

The utility model relates to the technical field of wires and cables, in particular to a cross-shaped cable, which is provided with a conductor and an insulating sleeve extruded outside the conductor, the cross section of the conductor is cross-shaped, the cross section of the cable is cross-shaped, and an X-axis on the cross section of the conductor and an X-axis on the cross section of the cable are on the same straight line. According to the utility model, the cross section of the conductor is in a cross shape, and the cross section of the whole cable is also in a cross shape, so that compared with a cylindrical conductor cable with the same cross section area, the surface heat dissipation area of the cable is increased, and the heat dissipation performance of the cable is improved. And large gaps can be formed at the periphery of the cable during laying, so that air flow is improved, heat dissipation of the cable is facilitated, the service life of the cable is prolonged, and the safety of the cable is improved.

A ground component is made of a columnar or cylindrical conductor and is connected to a ground potential. A cover component is cylindrical and made of a material containing dielectrics. The cover component is arranged at a distance from the ground component so as to cover the outer surface of the ground component, with the ground component inserted therein. The antenna element is arranged between the inner surface of the cover component and the outer surface of the ground component.

Provided is a connector module capable of suppressing a decrease in EMC characteristics. A connector module is provided with a socket mounted on a substrate, and a plug electrically connected to the socket and a communication cable, the plug having a connector including an external conductor electrically connected to the communication cable, and a connection member connecting the socket and the connector and electrically connected to a ground line of the substrate, the outer conductor includes a cylindrical conductor main body and an annular flange portion extending radially outward from the conductor main body, the flange portion includes a stepped portion on an opposing surface opposing the connection member, and the connection member is in contact with either a stepped upper portion of the stepped portion or a stepped lower portion of the stepped portion.

The utility model relates to the technical field of electrical connection of a high-temperature gas cooled reactor, and discloses a terminating structure for connecting an electrical penetration assembly, which is characterized in that a flat and straight surface arranged on a semi-cylindrical conductor is attached to a flat and straight surface of a semi-cylindrical structure on a binding post of the electrical penetration assembly, and the semi-cylindrical conductor and the binding post are connected through a first fastener; one end of the transition section is connected with the semi-cylindrical conductor, and the other end is connected with the flat section; the flat and straight faces of the two wiring noses are attached to the flat and straight faces of the two sides of the flat plate section respectively, and the wiring noses and the flat plate section are connected through second fasteners. According to the invention, the semi-cylindrical conductor is attached to the flat and straight surface of the semi-cylindrical structure on the binding post of the electrical penetration assembly, and the flat and straight surfaces of the two wiring noses are respectively attached to the flat and straight surfaces of the two sides of the flat plate section, so that the contact area of wiring is increased, the two wiring noses are reliably arranged, and the risk of heating and burnout of the terminating part is remarkably reduced.

This invention discloses a female terminal that can suppress the enlargement of the female terminal and cope with the increase in current, and can also suppress the risk of deformation when manufacturing the contact spring part. The female terminal (10) includes: a main body part (20) having a connecting part (16) that is conductively connected to other components and a hollow cylindrical conductor part (18); and a contact forming part (22) conductively assembled to the cylindrical conductor part (18), the cylindrical conductor part (18) having a male terminal insertion port (26) opening towards one end, and the contact forming part (22) having: a frame part (52) assembled to the inner surface of the wall part (30, 32, 34, 35) of the cylindrical conductor part (18). 36); and the contact spring part (54), which is held in the frame part (52), protrudes toward the inside of the frame part (52), and is pressed against the male terminal (12) inserted from the male terminal insertion port (26). The welding part (80) provided on the outer surface (64) of the frame part (52) of the contact forming part (22) overlaps with and is welded to each other with the welding part (38) provided on the inner surface (36) of the wall part (30, 32, 34, 35) of the cylindrical conductor part (18) of the main body part (20).

The invention discloses a traction network impedance calculation method and system for a three-phase alternating-current traction power supply system, and the method comprises the steps: selecting a left contact rail, a right contact rail and a walking rail as three-phase conductors according to the requirements of a vehicle power receiving system, and determining the materials and electrical parameters of each conductor; determining the installation position of the three-phase conductor according to the power receiving requirement of a vehicle; the contact rail and the steel rail are equivalent to cylindrical conductors, and geometric parameters of the equivalent cylindrical conductors are determined; constructing an overhead line model of an equivalent cylindrical conductor, and respectively calculating conductor self-impedance and mutual impedance between conductors according to an electromagnetic theory and a Carcon ground loop impedance model; respectively calculating the voltage drop of the contact rail and the voltage drop of the running rail according to the calculated impedance values of the self-impedance of the conductors and the mutual impedance between the conductors; through a standardized impedance calculation process, standardized design and evaluation of the traction power supply system are realized.

To provide a female terminal which can cope with a higher current while preventing an increase in size of the female terminal, and which can also reduce a deformation risk of a contact spring part at the time of manufacturing.SOLUTION: A female terminal 10 comprises: a body part 20 having a connection part 16 to be conduction-connected to another member and a hollow cylindrical conductor part 18; and a contact formation metal fitting 22 which is conductively assembled to the cylindrical conductor part 18. The cylindrical conductor part 18 has a male terminal insertion port 26 which is opened to one end side. The contact formation metal fitting 22 has: a frame body part 52 which is assembled to an inner surface 36 of wall parts 30, 32, 34, and 35 of the cylindrical conductor part 18; and a contact spring part 54 to be brought into pressure-contact with a male terminal 12 which is held by the frame body part 52 and protrudes to the inner side of the frame body part 52 so as to be inserted from the male terminal insertion port 26. A welding part 80 provided on an outer surface 64 of the frame body part 52 of the contact formation metal fitting 22 and a welded part 38 provided on the inner surface 36 of the wall parts 30, 32, 34, and 35 of the cylindrical conductor part 18 in the body part 20 are welded to each other in an overlapping manner.SELECTED DRAWING: Figure 3

Disclosed is a female terminal that is capable of handling larger currents while suppressing an increase in size of the female terminal, and that is also capable of minimizing the risk of deformation at the time of manufacturing a contact spring part.　A female terminal (10) comprises: a body part (20) having a connection part (16) that is conductively connected to another member and also having a hollow cylindrical conductor part (18); and a contact formation fitting (22) that is conductively assembled to the cylindrical conductor part (18). The cylindrical conductor part (18) has a male terminal insertion port (26) that opens toward one end side. The contact formation fitting (22) includes: a frame body part (52) that is assembled to the inner surfaces (36) of wall parts (30, 32, 34, 35) of the cylindrical conductor part (18); and a contact spring part (54) that is pressed against a male terminal (12) which is held by a frame body part (52), protrudes toward the inside of the frame body part (52), and is inserted from the male terminal insertion port (26). A welding part (80) provided on an outer surface (64) of the frame body part (52) of the contact formation fitting (22) is overlapped and welded to a welded part (38) provided on each of the inner surfaces (36) of the wall parts (30, 32, 34, 35) of the cylindrical conductor part (18) of the body part (20).

The present invention relates to the technical field of transmission devices, and particularly to a millimeter-wave radar antenna and a wave focusing method thereof, which includes a waveguide component and two dielectric substrates. The waveguide component is disposed between the two dielectric substrates, and the two dielectric substrates are respectively connected to both ends of the waveguide component. The waveguide component includes a plurality of cylindrical conductors, and the arrangement of the plurality of cylindrical conductors forms an arrangement trajectory, which is in a horn shape. One end of the arrangement trajectory is a closed end, and the other end of the arrangement trajectory is an open end. The millimeter-wave radar antenna of the present invention can achieve the concentration of energy as much as possible under the condition of a small size, so as to achieve a farther detection distance.

To provide a gas-insulated switchgear in which sufficient current flows through parts that move while in contact. The contact is provided with a first movable contact (19) that is provided inside the movable cylinder conductor (17), that is in contact with the movable rod (21), that is electrically connected to the movable rod (21), and that moves together with the movable rod (21) in the approaching and separating direction; and a second movable contact (20) that is provided inside the movable cylinder conductor (17), that is in contact with the first movable contact (19) and the inner surface of the movable cylinder conductor (17), that is electrically connected to the first movable contact (19), and that moves together with the movable rod (21) and the first movable contact (19) in the approaching and separating direction while in contact with the movable cylinder (17).

The invention discloses a flexible pressure sensor and a performance evaluation system thereof, and relates to the technical field of pressure sensors. The flexible pressure sensor comprises an upper flexible layer, a pressure sensing layer and a lower flexible layer, the upper flexible layer and the lower flexible layer are used for transmitting pressure; the pressure sensing layer is used for sensing pressure; grooves are formed in one side, facing the pressure sensing layer, of the upper flexible layer and one side, facing the pressure sensing layer, of the lower flexible layer; the pressure sensing layer is suspended between the upper flexible layer and the lower flexible layer; the pressure sensing layer comprises a cylindrical conductor, a force-sensitive stay wire and a flexible covering layer; a first elastic block is arranged between the cylindrical conductor and the upper flexible layer, and a second elastic block is arranged between the cylindrical conductor and the lower flexible layer; and the deformation of the flexible covering layer is sensed through the force-sensitive stay wire. The flexible pressure sensor provided by the invention can provide a high-precision detection result, has good sensitivity, and improves stability and reliability.

The present invention relates to a portable device and method for restoring the cylindricity of a generator conductor. In particular, a method for restoring the cylindricity of a generator conductor, in particular a turbine generator conductor, wherein the conductor is a cylindrical conductor coupled to a first stator bar joint of a generator; the method comprising the steps of: a) providing a portable device provided with a turning tool; b) releasing the coupling between the first stator bar joint and the conductor; c) coupling the portable turning device to the conductor, wherein the conductor is still coupled to the generator; d) turning the conductor.

The present invention provides a gas-insulated switchgear in which energization is sufficient at a portion that moves while in a contacting state.　This gas-insulated switchgear comprises: a first movable contact (19) which is provided in the interior of a movable-side cylinder conductor (17), contacts a movable-side rod (21), is electrically connected to the movable-side rod (21), and moves in a contact / separation direction together with the movable-side rod (21); and a second movable contact (20) which is provided in the interior of the movable-side cylinder conductor (17), contacts the inner surfaces of the first movable contact (19) and the movable-side cylinder conductor (17), is electrically connected to the first movable contact (19), and moves in the contact / separation direction together with the movable-side rod (21) and the first movable contact (19) while contacting the movable-side cylinder (17).

We disclose a female terminal that, even when it is necessary to handle high currents, can suppress the enlargement of the female terminal while also suppressing the risk of deformation of the contact spring during manufacturing. [Solution] The female terminal 10 comprises a main body 22 which is a pressed product of a first metal plate 16 and has a connecting portion 18 that is electrically connected to another member and a hollow cylindrical conductor portion 20, and a contact forming fitting 26 which is a pressed product of a second metal plate 24 that is thinner than the first metal plate 16 and is electrically assembled to the cylindrical conductor portion 20. The cylindrical conductor portion 20 has a male terminal insertion opening 32 that opens toward one end, and the contact forming fitting 26 has a frame portion 62 which is assembled to the inner surface of the wall portions 36a, 36b, 38, 40 of the cylindrical conductor portion 20, and a contact spring portion 64 which is held by the frame portion 62 and protrudes toward the inside of the frame portion 62 and presses against the male terminal 12 inserted from the male terminal insertion opening 32.

The present invention discloses a female terminal capable of suppressing or preventing separation of a contact pressure application spring from a contact spring part with a small number of components and a small number of assembly man-hours.　A female terminal 10 includes a body part 18 having a cylindrical conductor part 16, and a contact forming metal fitting 20 assembled to the cylindrical conductor part 16. The contact forming metal fitting 20 includes a front assembly part 36, a rear assembly part 38, and a pair of contact spring parts 42 held on the front assembly part 36. A contact pressure application spring 102 is assembled to each contact spring part 42 for urging the respective contact spring parts 42 in directions approaching each other. A separation prevention piece 44 for preventing separation of the contact pressure application spring 102 is provided at the rear assembly part 38 of the contact forming metal fitting 20 to protrude therefrom. The separation prevention piece 44 allows assembly of the contact pressure application spring 102 to the contact spring part 42 in the contact forming metal fitting 20 before assembly. In an assembled state of the contact forming metal fitting 20, the separation prevention piece 44 is disposed at a separation prevention position S to overlap the contact pressure application spring 102 in projection in the axial direction of the cylindrical conductor part 16.

The application relates to a calculation method of the capacitance between a permanent magnet synchronous motor stator coil and a stator core. N winding coils of the same size arranged side by side in front of the stator core are regarded as ideal cylindrical conductors, one of the conductors and other two conductors adjacent to the one conductor are taken as a model for calculating the capacitance value between a single winding coil and the stator core, and the three adjacent conductors are conductor 1, conductor 2 and conductor 3 in turn. The calculation process comprises the following steps: step 1, calculating the coordinates of equivalent line charges of the three conductors; step 2, calculating the spatial potential distribution in the region x<‑D based on the mirror charge method and the superposition theorem; step 3, calculating the potential on the surface of the conductors; step 4, calculating the capacitance value of the conductor 2 to the stator core in the three-conductor model; and step 5, calculating the total capacitance of the winding to the stator core. The calculation method is simple, and the calculation result can be used as a supplement and a comparison of the calculation result of the commercial software without the need of purchasing and learning the commercial software.

A female terminal is disclosed that can suppress or prevent the detachment of the contact pressure spring from the contact spring portion with a small number of parts and assembly steps. [Solution] The female terminal 10 comprises a main body 18 having a cylindrical conductor portion 16 and a contact forming fitting 20 assembled to the cylindrical conductor portion 16. The contact forming fitting 20 has a front assembly portion 36, a rear assembly portion 38, and a pair of contact spring portions 42 held by the front assembly portion 36. Each contact spring portion 42 is fitted with a contact pressure spring 102 that biases each contact spring portion 42 toward each other. A detachment prevention piece 44 is provided protruding from the rear assembly portion 38 of the contact forming fitting 20 to prevent the detachment of the contact pressure spring 102. The detachment prevention piece 44 allows the contact pressure spring 102 to be assembled to the contact spring portion 42 in the contact forming fitting 20 before assembly, and in the assembled state of the contact forming fitting 20, the detachment prevention piece 44 is positioned at a detachment prevention position S where it overlaps with the contact pressure spring 102 in the axial projection of the cylindrical conductor portion 16.

A glass core wiring substrate incorporating a high-frequency filter having good high-frequency characteristics as a core material and allowing a more efficient arrangement of a conductor in the glass substrate, a module including the same, and a method of manufacturing the glass core wiring substrate incorporating a high-frequency filter. A conductive layer in a glass through a hole in a glass core substrate has a structure in which a hollow cylindrical conductor layer on a side wall of the glass through hole is connected to a cover conductor layer covering one of two openings of the glass through hole. To achieve such a structure, a carrier is attached to one surface of the glass core substrate to cover one of the openings of the glass through hole, and the carrier is peeled off and removed after lamination of the conductor.

The application relates to the technical field of electric connectors, and particularly discloses a double-end thread and cone compression electric connector structure and an assembling method, which are used for the connection of two cylindrical conductors and comprise a connector middle body, shafts arranged on the two sides of the connector middle body and coaxially connected with the two cylindrical conductors respectively, and locking assemblies sleeved on the outer cylindrical surfaces of the shafts and used for locking the shafts and the cylindrical conductors; the locking assemblies are arranged in one-to-one correspondence with the cylindrical conductors; the locking assemblies comprise nuts sleeved on the outer cylindrical surfaces of the shafts, outer conical tubes which are sleeved on the outer cylindrical surfaces of the shafts, located on the sides of the nuts away from the connector middle body and cut into two halves, and inner conical tubes which are sleeved on the outer cylindrical surfaces of the shafts and matched with the outer conical tubes. The application can effectively realize the connection between cylindrical conductors made of different materials and avoid the loosening of the cylindrical conductors.

A circuit breaker large-current direct-current resistance test patch cord device comprises a cylindrical conductor, an insulation positioning column and a clamping part, the insulation positioning column and the clamping part are located at the two ends of the cylindrical conductor respectively, the clamping part is a conductor, a blind hole is formed in the end, connected with the insulation positioning column, of the cylindrical conductor, and one end of the insulation positioning column is inserted into the blind hole and then fixed. The insulation positioning column is used for being inserted into an insertion hole in the end portion of a rod-shaped conductor, the cylindrical conductor is clamped by a plum blossom contact finger to conduct electricity, and a wire clamp used for testing is clamped on the clamping portion, so that a tester can rapidly and conveniently carry out direct-current resistance measurement of the circuit breaker without damaging the contact finger of the circuit breaker, and the testing efficiency is improved. And the measured data can truly reflect the contact condition of the circuit breaker under the operation condition.

The present application relates to the technical field of mechanical transmission, in particular to a cylinder type self-adjusting air gap permanent magnet soft connection device, comprising: a first connecting shaft adapted to connect a load; a second connecting shaft adapted to connect a drive and coaxial with the first connecting shaft; a conductor rotor comprising a conductor ring and a cylindrical conductor ring carrier, the conductor ring carrier is fixed on the first connecting shaft, and the conductor ring is fixed on the inner wall of the conductor ring carrier; a permanent magnet rotor located between the conductor ring and the second connecting shaft and coaxial with the conductor ring, the permanent magnet rotor comprises a permanent magnet carrier, the permanent magnet carrier comprises at least two carrier blocks uniformly distributed along the circumference of the second connecting shaft, the carrier blocks are installed on the second connecting shaft and can slide in the radial direction of the second connecting shaft, each carrier block is fixed with a permanent magnet on the surface facing the conductor ring, and each carrier block is connected with an elastic member adapted to hinder the radial outward sliding of the carrier block. By adopting the above scheme, the automatic adjustment of the air gap can be realized during starting, the structure is simple, the weight is light, and the cost is low.

To provide a female terminal which can cope with a higher current while preventing an increase in size of the female terminal, and which can also reduce a deformation risk of a contact spring part at the time of manufacturing.SOLUTION: A female terminal 10 comprises: a body part 20 having a connection part 16 and a cylindrical conductor part 18; and a contact formation metal fitting 22 assembled to the cylindrical conductor part 18. The cylindrical conductor part 18 has: a male terminal insertion port 24; a rear opening window 26; and a welded part 38 made of a chamfered part provided on an inner peripheral portion of an end surface 37 on the male terminal insertion port 24 side or the rear opening window 26 side. The contact formation metal fitting 22 has: a frame body part 52 which is assembled to an inner surface 35 of a wall part of the cylindrical conductor part 18; a contact spring part 54 to be brought into pressure-contact with a male terminal 12 which protrudes to the inner side of the frame body part 52 so as to be inserted from the male terminal insertion port 24; and a welding part 56 which is provided by bending, along the inclination of the chamfered part, an edge portion of the frame body part 52 on the male terminal insertion port 24 side or the rear opening window 26 side. The welding part 56 and the welded part 38 are welded to each other in an overlapping manner.SELECTED DRAWING: Figure 3

The utility model discloses a connector terminal assembly for heavy current, which comprises a male terminal and a female terminal matched with the male terminal, the male terminal comprises a cylindrical conductor, and the connector terminal assembly is characterized in that the female terminal comprises a circular-tube-shaped conductor, the circumferential tube wall of the circular-tube-shaped conductor is provided with continuous spiral hollow grooves, the inner diameter of the circular-tube-shaped conductor is smaller than the outer diameter of the cylindrical conductor, and the outer diameter of the circular-tube-shaped conductor is smaller than the outer diameter of the cylindrical conductor. A cutting groove which is communicated with or coincides with the front end of the spiral hollow-out groove is formed in the ring wall of the front end of the circular-tube-shaped conductor; when the cylindrical conductor is inserted into the circular-tube-shaped conductor, the circular-tube-shaped conductor is expanded under the action of the spiral hollow-out groove to wrap the cylindrical conductor, so that the inner circumferential surface of the circular-tube-shaped conductor is tightly attached to the outer circumferential surface of the cylindrical conductor to form surface-to-surface contact. Compared with a line contact type matching structure of a male terminal and a female terminal of a traditional connector terminal assembly, the connector terminal assembly of the utility model can effectively reduce the contact resistance, thereby realizing the improvement of the current-carrying capability of the connector on the premise of not changing materials and not increasing the material consumption.

The present disclosure discloses a female terminal capable of suppressing an increase in size of the female terminal and suppressing a risk of deformation during manufacturing of a contact spring portion even when a large current needs to be handled. A female terminal (10) is provided with: a main body part (22) which is a press-processed product of a first metal flat plate (16) and has a connection part (18) and a hollow cylindrical conductor part (20), the connection part (18) being conductively connected to another member; and a contact forming component (26) which is a press-processed product of a second metal flat plate (24) having a plate thickness thinner than that of the first metal flat plate (16) and is conductively assembled to the cylindrical conductor part (20), the cylindrical conductor part (20) having a male terminal insertion port (32) opening toward one end side, the contact forming component (26) having: a frame part (62) assembled to the inner surfaces of wall parts (36a, 36b, 38, 40) of the cylindrical conductor part (20); and a contact spring section (64) which is held by the housing section (62), protrudes toward the inside of the housing section (62), and is crimped to the male terminal (12) inserted from the male terminal insertion opening (32).