CN116031679A - Bent connector and terminal thereof - Google Patents

Abstract

The invention relates to a bent connector and a terminal thereof, wherein the terminal is arranged in a corresponding accommodating hole of a shell, a plurality of terminals are arranged in a laminated way to form a terminal group, and the terminal comprises an inserting end, a crimping end and a terminal wiring part; in the same terminal group, the inserting ends of the plurality of terminals are arranged in rows along a first direction, and the crimping ends of the plurality of terminals are arranged in rows along a second direction perpendicular to the first direction; the terminal group is in the first terminal and the second terminal of adjacent layer, and the terminal wire portion of second terminal is along the third direction and towards keeping away from the terminal wire portion of first terminal, and the third direction is perpendicular to first direction and second direction, and the terminal wire portion of first terminal and the terminal wire portion of second terminal are in same height in first direction, and the terminal wire portion of first terminal and the terminal wire portion of second terminal stagger in the third direction in order to form the air insulation clearance. According to the invention, the second terminal is bent in the thickness direction, so that the air insulation gap is increased, the creepage distance is increased, and the voltage-resistant performance can be ensured.

Description

Bent connector and terminal thereof

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a bent connector and a terminal thereof.

Background

Among the prior art, curved connector includes the connector housing and the terminal group that the parallel distribution set up in the connector housing, and the terminal group includes a plurality of terminals, and the one end of terminal is for inserting the end, and the other end is the crimping end, and the part that extends between inserting the end and the crimping end is terminal wiring portion, and when inserting the end and the crimping end is 90 bending, the face of inserting of enabling curved connector and crimping face mutually perpendicular. In a terminal group at present, terminal routing parts of two adjacent terminals are arranged at intervals on the surface where a plurality of terminal arrangement directions are located, namely, the routing parts of two adjacent terminals are not overlapped in the parallel stacking direction of the terminal group, and the typical terminal arrangement form makes the size of the terminal group in the plane where the terminal stacking arrangement direction is located larger, which is not beneficial to the size miniaturization design of the bent connector, and the space of the connector shell in the parallel stacking direction of the terminal group cannot be fully and reasonably utilized. If the terminal routing portions of the adjacent terminals are stacked to reduce the size of the connector, a sufficient air gap cannot be reserved between the adjacent terminal routing portions, and insufficient air gap can reduce the creepage distance between the terminals, which affects the voltage-resistant performance of the connector. Therefore, it is highly desirable to design a reasonable terminal distribution structure that can not only save the space occupied by the terminals in the connector, but also satisfy the voltage-withstanding performance of the connector.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a bent connector and a terminal thereof.

The invention aims at solving the technical problems by adopting the following technical scheme. The bending connector provided by the invention comprises: a housing having a plurality of receiving holes; the terminal group comprises a plurality of terminals, the terminals are arranged in the corresponding accommodating holes, the terminals comprise inserting ends, crimping ends and terminal wiring parts for connecting the inserting ends and the crimping ends, the inserting ends of the plurality of terminals are arranged in rows along a first direction, and the crimping ends of the plurality of terminals are arranged in rows along a second direction perpendicular to the first direction; the plurality of terminals include first terminal and second terminal that are in adjacent layer, and the inlayer of second terminal is located to first terminal, and the terminal of second terminal is walked line portion and is walked line portion towards the terminal of keeping away from first terminal along the third direction and is bent, and the third direction is perpendicular to first direction and second direction, and the terminal of first terminal walks line portion and the terminal of second terminal and walks line portion and be in same height in first direction, and the terminal of first terminal walks line portion and second terminal walks line portion and staggers in the third direction in order to form air insulation clearance. The beneficial effects are that: the wiring part of the first terminal and the terminal wiring part of the second terminal are positioned at the same height in the first direction, but are not positioned in the same plane, namely, the positions in the third direction are different, the terminal wiring part of the second terminal is bent, so that an air insulation gap between the terminal wiring part of the first terminal and the terminal wiring part of the first terminal is increased, the creepage distance is increased, and the voltage-resistant performance can be ensured; and the space can be saved, and the space size of the compression joint surface relative to the insertion joint surface can be met.

Further, the terminal routing portion of the first terminal is bent along the third direction and towards the terminal routing portion far away from the second terminal, and the terminal routing portion of the second terminal is bent along the third direction and towards the terminal routing portion near the first terminal at the position near the crimping end of the terminal routing portion, so that the crimping end of the first terminal and the crimping end of the second terminal are arranged in a row in the second direction. The beneficial effects are that: the bending of the first terminal in a direction away from the second terminal not only makes the crimp end of the first terminal coplanar with the crimp ends of the other terminals in the same terminal group, but also further increases the air insulation gap between the terminal wire running part of the second terminal.

Further, the terminal wiring part is provided with a barb, and the barb is used for being in interference fit with the accommodating hole.

Furthermore, the crimping end is of a fish-eye structure.

Further, the terminal wiring portion of the first terminal and the terminal wiring portion of the second terminal forming the air insulation gap are parallel to each other.

Further, the terminal wiring portion of the first terminal and the terminal wiring portion of the second terminal are in stop fit with the housing in the crimping direction. The beneficial effects are that: the housing can provide a force facing the direction of the printed board to the terminal routing parts of the first and second terminals to prevent the crimping end from withdrawing pins.

Further, the plugging end comprises two symmetrically arranged elastic arms, the two elastic arms are positioned in a plane, the movable end of the elastic arm is bent to one side which is separated from the plane to form a contact part, and the two contact parts are oppositely arranged to form a jack structure; in the same terminal group, the center of each crimping end is coplanar with the center of the jack structure of each inserting end. The beneficial effects are that: the center of the crimping end is coplanar with the center of the inserting end, so that the stress direction of the inserting end and the stress direction provided by the printed board to the crimping end are positioned in the same plane in the inserting process of the bent connector and the adapting connector, the opposite insertion is facilitated, the stress of the whole terminal group is more balanced during the opposite insertion, and the inserting strength of the terminal group is improved; in addition, the bending direction when forming the contact part and the bending direction when forming the bending structure are the same in the thickness direction of the terminal, so that the occupied space of the terminal in the thickness direction can be effectively reduced, and the effect of saving the internal space of the shell is realized.

Further, a bending line is arranged at the joint of the contact part and the elastic arm, and a first included angle is formed between the extending direction of the bending line and the inserting direction of the bent connector. The beneficial effects are that: the bending line is in a certain angle with the terminal inserting direction, but not parallel, so that the material consumption for forming the terminal can be reduced, the terminal structure is simpler and easier to form, and the inserting end structure is more stable.

Further, the thickness direction of the contact portion is perpendicular to the thickness direction of the elastic arm. The beneficial effects are that: the contact part formed by bending at 90 degrees can improve the contact area with the adaptive terminal.

Further, the terminal wire part is provided with a reinforcing structure extending along the second direction, the reinforcing structure is a convex hull or a bending part, the convex hull is formed by stamping the terminal wire part towards the thickness direction of the convex hull, and the bending part is formed by bending the cross section of the terminal wire part towards the plane direction away from the terminal wire part. The beneficial effects are that: the structural strength of the terminal wiring part is increased.

The invention also provides a terminal, which is the terminal in any one of the bent connectors, and is not repeated here.

The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention given in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a first bending connector according to the present invention.

Fig. 2 is a schematic structural diagram of a second bending connector according to the present invention.

Fig. 3A and 3B are schematic views of a terminal set in a first type of bent connector of the present invention.

Fig. 4 is a schematic view of a housing of a first curved connector according to the present invention.

Fig. 5A and 5B are schematic views of a terminal set in a second type of bent connector of the present invention.

Fig. 6 is a schematic view of a housing of a second curved connector of the present invention.

Fig. 7 is a perspective view of the curved connector of the present invention.

Fig. 8A is a schematic view of a terminal set.

Fig. 8B is an enlarged view of the mating end shown in fig. 8A.

Fig. 9 is a schematic diagram showing a relationship between a bending line of a mating end of a terminal and a mating direction.

Fig. 10 is a schematic structural view of the mating end of the terminal.

Fig. 11 is a schematic view of the mating end of a prior art terminal.

Fig. 12 is a schematic view of a convex hull in a first type of curved connector.

Fig. 13 is a schematic view of a bent portion in a second type of bent connector.

Fig. 14 is a schematic view showing another arrangement of bent portions in the second type of bent connector.

Fig. 15 is a schematic view of the positions of the bending portion and the base body of the terminal trace portion.

Figures 16 and 17 are schematic illustrations of the location of barbs in a first type of curved connector.

Fig. 18 is a schematic view of the location of barbs in a second type of curved connector.

Fig. 19-21 are schematic views of the mating of barbs with a housing in a second type of curved connector.

Fig. 22 to 24 are schematic views showing the fitting of the terminals with the guide grooves on the housing in the first type of bent connector.

Fig. 25 is a schematic view showing a stepped distribution of guide grooves in the first type of bent connector.

Fig. 26 is an enlarged schematic view showing the stepped distribution of the guide grooves in the first type of the bent connector.

Fig. 27 is a schematic view showing the position of the guide groove in the first type of bent connector, which is engaged with the first terminal and the second terminal.

Fig. 28 to 32 are schematic views showing the assembly relationship of each terminal in the terminal group with the corresponding guide groove.

Fig. 33 is a schematic view showing the mating of the platform portion on the terminal with the housing in the second type of bent connector.

Fig. 34 is a schematic view of a platform portion on a terminal in a second type of bent connector.

Fig. 35 to 39 are schematic views of the first to fifth terminals before being fitted into the corresponding accommodation holes.

Fig. 40 to 41 are schematic views of the first to fifth terminals after being fitted into the corresponding accommodation holes.

Fig. 42 is a schematic view of the second type of bent connector with the crimp end and the mating end of each terminal coplanar.

Fig. 43 is a schematic view of the terminals of the terminal set of the first type of bent connector with the crimp ends and the mating ends of the terminals being coplanar.

Fig. 44A is a schematic diagram showing the fitting of the bent portion on the terminal and the receiving hole in the second type of bent connector.

Fig. 44B is an enlarged view between a bent portion on a terminal and a receiving hole in the second type of bent connector.

Fig. 45 is a schematic view showing the position of a bent portion on a terminal in the second type of bent connector.

Fig. 46A is a schematic diagram showing the engagement of the third terminal with the receiving hole in the second type of bent connector.

Fig. 46B is an enlarged schematic view of the third terminal and the receiving hole in the second type of bent connector.

Fig. 47 to 50 are schematic diagrams showing the positional relationship between the terminal trace portion of the first terminal and the terminal trace portion of the second terminal.

Fig. 51 is a schematic view of mounting surfaces on a plurality of terminals as seen simultaneously at the tail portions of the terminals.

Fig. 52 is a schematic view of a terminal tail portion and a terminal head portion of a terminal.

Fig. 53 to 54 are schematic views of the support table on the housing.

Fig. 55 is a schematic view of the shield blades prior to assembly with the housing.

Fig. 56 is an enlarged view of section i in fig. 55.

Fig. 57 is an enlarged view of section ii of fig. 55.

Fig. 58 is a schematic view of the insertion of the shield blades into slots on the housing.

Fig. 59 is a schematic view of the bump on the shield blades in interference fit with the housing.

Fig. 60 is a schematic side view of the shield sheets assembled with the housing.

Fig. 61 is a schematic view of the buckle fastened to the housing.

Fig. 62 is a schematic view of the mating of the clip with the terminal.

Fig. 63 is a schematic view of a terminal set in a third type of bent connector.

Fig. 64 is a schematic structural view of a terminal trace portion in a third type of bent connector.

Fig. 65 is a schematic diagram showing the relationship between the press-receiving direction of the terminals and the housing-receiving direction in the first and second type bending connectors.

Fig. 66 is a schematic view showing a relationship between a press-receiving direction of a terminal and a housing receiving direction in a third type of bent connector.

Fig. 67 is a structural composition diagram of a third type of bent connector.

Fig. 68 is a perspective view of a third type of curved connector.

Detailed Description

The bending connector according to the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments. If several embodiments of the curved connector exist, the features of these embodiments may be combined with each other without conflict. When the description refers to the accompanying drawings, the same numbers in different drawings denote the same or similar elements, unless otherwise specified. It should be understood that words such as "first," "second," and the like, used in the description and in the claims of the present invention, do not denote any order, quantity, or importance, but rather are names used to distinguish one feature from another. The terms "top," "bottom," "front," "rear," "upper," "lower," and the like are used herein with respect to orientation or position for ease of description only and are not limited to a particular orientation or position.

The invention discloses a bent connector, which comprises a shell 1, a terminal group, a shielding sheet 3 and a pinch plate 4, wherein the terminal group comprises a plurality of terminals 2, the shell 1 is provided with a plurality of accommodating holes 11, the terminals 2 are arranged in the corresponding accommodating holes, the invention takes 5 terminals as an example for one terminal group, and each terminal 2 comprises an inserting end 21, a crimping end 23 and a terminal wiring part 22 for connecting the inserting end and the crimping end. In the terminal group, the insertion ends 21 of the plurality of terminals are arranged in a row along a first direction, the crimp ends 23 of the plurality of terminals are arranged in a row along a second direction perpendicular to the first direction, the second direction is the insertion and extraction direction of the bent connector, the accommodating hole is arranged through in the second direction, and then the terminals are accommodated in the accommodating hole along the second direction. The insertion end 21 is used for inserting and matching the adapting terminal in the adapting connector, the press-fit end 23 is used for press-fit matching with the printed board, and the bend in the bent connector means that 90 degrees of bending are arranged between the insertion surface of the bent connector matched with the adapting connector and the press-fit surface of the bent connector matched with the printed board. When the terminal group is provided with a plurality of terminal groups, the terminal groups are distributed in the shell in parallel along a third direction, and the third direction is perpendicular to the first direction and the second direction. In the case, the terminals are arranged in a layer, if the terminal of the innermost layer is the first terminal, the terminal of the outermost layer is the fifth terminal, the first terminal is located in the inner layer of the second terminal, the second terminal is located in the inner layer of the third terminal in the terminal group, and so on.

The first type of curved connector is shown in fig. 1, 3A, 3B and 4, and the second type of curved connector is shown in fig. 2, 5A, 5B and 6; the two types of bent connectors are mainly different in the form of the terminal routing portion of the terminal and the accommodating hole 11 for accommodating the terminal in the housing 1, and the fisheye structures of the plugging end and the crimping end are the same. The containing hole in the invention is a rectangular hole, the buckle plate and the shielding plate are buckled, and the final assembly is completed, so that the state shown in fig. 7 is formed.

As shown in fig. 8A and 8B, in any one of the embodiments of the bent connector, the insertion end 21 of the terminal is formed by bending; the plugging end 21 comprises two symmetrically arranged elastic arms 211, one end of the terminal wiring part is bifurcated to form a pair of the elastic arms, the elastic arms 211 provide deformability for the plugging end 21, and elastic contact conduction is realized during plugging. The elastic arms 211 are in a sheet structure, two elastic arms in the same terminal are located in a vertical plane, movable ends of the elastic arms are bent towards one side, which is separated from the vertical plane, to form a contact part 212, two contact parts 212 of the same terminal are oppositely arranged to form a jack structure 213 which is inserted with an adaptive terminal, and an inserting end of the adaptive terminal can be a sheet type contact pin. The extending direction (direction a in fig. 9) of the bending line 214 at the connection between the contact portion 212 and the elastic arm 211 forms a first included angle with the plugging direction, i.e. the bending line 214 is not parallel to the plugging direction. The contact portion 212 includes a first sub-contact portion 2121 connected to the elastic arm and a second sub-contact portion 2122 formed by bending and extending the distal end of the first sub-contact portion, and a connection portion between the first sub-contact portion and the second sub-contact portion is a contact portion 2123 in contact conduction with the mating terminal. A second included angle is formed between the first sub-contact part and the second sub-contact part belonging to one contact part, and the second included angle can be an acute angle, a right angle or an obtuse angle, so that the directions of notches formed by the two contact parts in the same terminal are opposite; the contact portion 212 may be generally V-shaped, C-shaped, etc. In the same terminal, the two first sub-contact portions 2121 are bent towards the direction of approaching each other, the two second sub-contact portions 2122 are bent towards the direction of separating from each other, and a third included angle is formed between the second sub-contact portions and the plugging direction, so that the insertion of the adaptive terminal is facilitated. In the present invention, the contact portion and the elastic arm are perpendicular to each other, that is, the thickness direction of the contact portion 212 is perpendicular to the thickness direction of the elastic arm 211, so that a linear contact portion is formed in the thickness direction of the elastic arm, the contact area between the contact portion and the adapter terminal is increased, and the clamping force on the adapter terminal is stronger.

Referring to fig. 11, the insertion end of the U-shaped bending base 210 is provided with a bending line 2101 extending in the direction of direction B in fig. 11, and it can be seen that the direction B is parallel to the insertion direction, and the two front ends of the U-shaped bending base are bent in the direction approaching to the other end and then are bent in the direction departing from the other end during the forward extending process, so as to finally form two opposite elastic arms. Compared with the structure of the inserting end shown in fig. 11, the inserting end does not need to be provided with a U-shaped bending base body with relatively large material consumption, so that the length dimension of the inserting end is shortened, the structure is simpler, and materials are saved. In addition, the bending times of the U-shaped bending matrix and the elastic arm at the front end of the U-shaped bending matrix in the forming process are relatively more, and the bending times can cause unstable structure and easy deformation; therefore, the insertion end designed by the invention has relatively less bending forming times and has the advantages of stable structure and difficult deformation.

In this embodiment, two contact portions 212 in the terminal are bent toward the same side of the elastic arm, and at this time, the two contact portions are opposite; however, in another possible embodiment, the two contact portions of the same terminal may be bent towards opposite sides, which can also form a jack structure with elastic deformation capability, where the two contact portions are in staggered pairs, and the two contacts that are staggered and distributed can be adapted to an adaptive terminal with a wider size in the third direction (i.e. the thickness direction of the elastic arm), where the width dimension of the plugging surface of the terminal set in the third direction is larger; otherwise, the two opposite contact parts can be adapted to narrower adapting terminals, which is beneficial to reducing the size of the inserting surface of the terminal group.

The terminal wire portion 22 is easy to bend and deform when being longer, in order to improve the structural strength of the terminal wire portion, a reinforcing structure is arranged on the terminal wire portion, the reinforcing structure can be a convex hull or a bending portion, and the extending direction of the reinforcing structure is the same as the wire direction of the terminal wire portion. As shown in fig. 12, the terminal routing portion of the first bending connector is provided with a convex hull 221, the convex surface of the convex hull is a plane, the convex hull 221 extends along the routing direction of the terminal routing portion, the terminal routing portion is a sheet structure formed by cutting a metal material strip, the convex hull 221 can be formed by stamping in the thickness direction of the terminal routing portion, and the back surface of the convex hull 221 forms a concave portion. In other embodiments, the convex hull can be directly added on the terminal routing part in a welding mode, so that the structural strength of the terminal routing part can be improved. The convex hull 221 is suitably arranged on a longer section of the terminal routing portion, the terminal routing portion 22 of the terminal is L-shaped in the terminal group, the L-shaped terminal routing portion includes a first routing portion 2201 and a second routing portion 2202 which are perpendicular to each other, the first routing portion 2201 extends along the mounting direction of the terminal, the second routing portion 2202 extends along the crimping direction of the terminal, the convex hull is arranged on a longer section (first routing portion) of the terminal routing portion, and the convex hull is not arranged on a shorter section (second routing portion) of the terminal routing portion.

As shown in fig. 13, in the second bending connector, at least one side of the terminal trace portion 22 is bent to form a bending portion 222, and the bending portion 222 extends along the trace direction of the terminal trace portion. The cross section (i.e. the cutting surface) of the terminal routing portion is bent in a direction away from the plane of the terminal routing portion to form the bending portion 222. As shown in fig. 14, the bent portions of one terminal may be provided in sections, that is, at a certain distance. The bending parts can also be distributed on two sides of the terminal wiring part; when the two sides of the terminal wiring part are bent with the bending parts, the bending parts at different sides can be distributed in a dislocation manner in the wiring direction. In order to prevent interference when the material is unfolded, a notch 2203 is arranged on the terminal wiring part, and the notch is used for avoiding the bending part of the adjacent terminal, so that interference between the bending part and the adjacent terminal when the bending part is unfolded is avoided. Referring to fig. 15, the angle at which the bending is performed when forming the bending portion is α, and in this embodiment, α is preferably 90 °.

In one possible embodiment, the convex hull and the bending portion may be combined and used, and the convex hull and the bending portion are simultaneously present on the terminal, for example, on the L-shaped terminal trace portion, where the convex hull is disposed on the first trace portion 2201, the bending portion is disposed on the second trace portion 2202, or the convex hull and the bending portion are simultaneously disposed on the first trace portion/the second trace portion. When the extension length of a certain bending portion is longer, a process groove 2204 may be formed at the junction between the bending portion and the base 220 of the terminal routing portion, so as to facilitate bending, as shown in fig. 14. The convex hulls and the bending parts are arranged, so that the plug resistance and the fatigue resistance of the terminal can be improved, the service life of the terminal is longer, and the current carrying capacity of the terminal can be effectively improved.

As shown in fig. 16 and 17, in the first bending connector, protruding barbs 223 are respectively provided on both side sections of the terminal routing portion 22 of the terminal, and the barbs 223 are used for interference fit with the inner wall of the housing hole 11 of the housing to limit the position of the terminal in the plugging direction, thereby fixing the terminal and preventing pin withdrawal. The barbs 223 may be disposed at positions of the terminal trace portions near the mating ends, the barbs on both sides of the terminal trace portions being at the same height in the terminal mating direction, and the barbs of the plurality of terminals also being at the same height in the terminal mating direction. In other embodiments, the barbs on both sides may be offset in the direction of terminal insertion.

As shown in fig. 18, in the second bending connector, the terminal routing portion 22 is provided with protruding barbs 223, and in the same terminal group, the barbs on different terminals are arranged in a step shape on the same plane. As shown in fig. 19 to 21, the barbs are provided on the bent portions 222 corresponding to the terminal wiring portions, and the barbs 223 are interference-fitted with the inner walls of the accommodation holes 11 to restrict the positions of the terminals in the insertion direction, thereby fixing the terminals and preventing withdrawal of pins. In each terminal group, barbs arranged in a step shape and barbs at the same height can exist at the same time, for example, the barbs playing a role in fixing on the first terminal and the second terminal are at the same height in the plugging direction and are arranged close to the plugging end.

As shown in fig. 22 to 24, in the first curved connector embodiment, a guiding groove 111 is provided in the accommodating hole 11 of the housing, the guiding groove 111 is located at the mating position of the accommodating hole and the terminal, the guiding groove 111 extends along the inserting direction of the terminal, and the guiding groove 111 is guided to mate with the terminal routing portion during terminal inserting, so as to perform an assembling guiding function. Since the barbs on the terminals in the same terminal group are at the same height in the plugging direction, the bottoms of all the guide grooves are at the same height in the accommodation holes corresponding to the terminals one by one, but the lengths of the plurality of terminal routing parts in the terminal plugging direction are stepwise changed (the lengths of the terminal routing parts of the fifth terminal, the fourth terminal and the third terminal in the terminal mounting direction are decreased), so that the corresponding plurality of guide grooves are correspondingly stepwise arranged in space, as shown in fig. 25 and 26. Fig. 27 shows a first guide groove 1111 for fitting with the first terminal and a second guide groove 1112 for fitting with the second terminal in the present embodiment. As shown in fig. 28 to 32, the fifth guide groove 1115 for the fifth terminal, the fourth guide groove 1114 for the fourth terminal, and the third guide groove 1113 for the third terminal are distributed in a stepwise manner. Each terminal is inserted into the corresponding accommodating hole 11 from top to bottom, and the width of the guide groove 111 is equivalent to the thickness of the terminal wiring part 22, so that the guide groove 111 can limit the terminal in the thickness direction of the terminal wiring part 22 to prevent the terminal from deflecting in the housing; the guide groove 111 can avoid the barb 223, so that excessive interference with the barb in the assembly process is prevented, and terminal insertion is prevented from being influenced. After the terminals are inserted in place, the barbs 223 on the terminals are in limit fit with the bottoms of the guide grooves 111 in the inserting direction, so that the inserting ends of the terminals are positioned on the same height inserting surface. Preferably, the guide grooves 111 in each accommodating hole 11 are symmetrically distributed, that is, two opposite parallel inner walls in each accommodating hole are respectively provided with a guide groove, so that the barbs on two sides are stressed in a balanced manner and are not easy to deflect in the terminal inserting process, the terminal inserting process is facilitated, and the barbs on two sides of the terminal are abutted with the bottoms of the corresponding guide grooves after the terminal is assembled in place, so that the terminal is prevented from being in a deflected state after being installed; and the opposite guide grooves can fix two sides of the terminal wiring part, so that the deflection preventing or torsion preventing capability is improved.

As shown in fig. 33 and 34, in the second bent connector, the second routing portion 2202 extending in the crimping direction among the terminal routing portions of the third terminal, the fourth terminal and the fifth terminal is bent in the thickness direction thereof to form the land 224, the land 224 and the housing are the land 2241 on the surface for the stop fit in the crimping direction, after the terminal is assembled in place, the land 2241 and the housing are in the stop fit in the crimping direction, and play a role of supporting and fixing the terminal during the crimping process, preventing the terminal from moving in the housing, and preventing the pin withdrawal in the crimping direction; and the bending forming platform 224 can also enhance the structural strength of the terminal routing part. As shown in fig. 35 to 39, the housing does not provide support in the crimping direction to the terminals before the first to fifth terminals are fitted into the corresponding accommodation holes; as shown in fig. 40 and 41, after the first to fifth terminals are mounted in place, the platform surface 2241 of the third, fourth and fifth terminals abuts against the surface parallel to the printed board on the housing, and the housing provides the supporting force for the platform part in the direction facing the printed board; the platform part of the third terminal is arranged to prop against the first supporting surface 101, the platform part of the fourth terminal is arranged to prop against the second supporting surface 102, the platform part of the fifth terminal is arranged to prop against the third supporting surface 103, and the first supporting surface, the second supporting surface and the third supporting surface are distributed in a step shape. And the terminal trace portions of the first and second terminals may be provided with a force facing the direction of the printed board by the first support surface 101. In addition, the platform 224 of the fourth and fifth terminals is also in stop fit with the housing 1 in the insertion direction of the terminals, so that the terminals can be assembled and limited. The platform 224 may also be disposed on the second trace portion of the third to fifth terminals in the first curved connector, which is not described in detail.

As shown in fig. 42, the terminal routing portion 22 is provided with a bending structure 225, the bending structure 225 is formed by bending the terminal routing portion in the thickness direction (third direction), and the purpose of the bending structure is to: in the same terminal group, the fish-eye structure center of the crimping ends 23 of all terminals is coplanar with the jack structure center of the plugging ends, so that the bent connector is beneficial to the opposite plugging of the adapting connector, the stress is balanced during opposite plugging, and the stress direction of each plugging end is coplanar with the stress direction provided by the printed board to each crimping end; "coplanar" refers to a "plane" in which the first and second directions are both located. The bending direction performed when forming the bending structure 225 is the same as the bending direction of forming the contact portion 212 in the thickness direction of the terminal, which is beneficial to reducing the size of the terminal set in the third direction and achieving the purpose of saving space. Similarly, the terminals in the first connector also have a bending structure 225, as shown in fig. 43, which is not described again.

As shown in fig. 44 to 46, in the second type of bent connector, the bent portion 222 can prevent the terminal from twisting during the assembling process, in addition to increasing the structural strength of the terminal and preventing the terminal from being deformed. Specifically, the accommodation hole 11 includes a first inner wall 1101, a second inner wall 1102, a third inner wall 1103, and a fourth inner wall 1104, which are connected in this order in the circumferential direction, the first inner wall being disposed opposite to the third inner wall, and the second inner wall being disposed opposite to the fourth inner wall. Taking the fifth terminal as an example, the cross section 2221 of the bending part 222 of the fifth terminal is propped against the first inner wall 1101, and meanwhile, the base 220 of the terminal routing part 22 is matched with the third inner wall, so that the position of the terminal is limited in the third direction, and the terminal is prevented from twisting in the assembling process; the torsion resistance manner of the fourth terminal and the third terminal is the same, and the description is omitted. In addition, taking the third terminal as an example, referring to fig. 46a and 46b, when the two sides of the terminal routing portion are provided with the bending portions 222, the sections of the two bending portions are all abutted against the first inner wall, the base body of the terminal routing portion is contacted with the third inner wall, and the terminal is pressed into the accommodating hole in an interference manner, so that the anti-torsion capability is stronger; the surface of the torsion direction is perpendicular to the mounting direction of the terminal. Further, an opening 1105 penetrating along the press-connection direction is formed in the position, connected to the third inner wall, of the upper edge of the fourth inner wall, the opening is used for the second wire-routing portion to penetrate out towards the printed board, and when the width of the opening in the third direction is equal to the thickness of the terminal wire-routing portion, the second wire-routing portion is clamped in the opening, so that the torsion resistance of the second wire-routing portion is improved to a certain extent. Openings corresponding to the third to fifth terminals are distributed in a stepped manner in space, and the bottom surface 11051 of the opening 1105 can also support the corresponding second wiring part to realize terminal assembly limit; the opening may also be adapted for use in the first curved connector embodiment. Further, as shown in fig. 46B, in the third terminal, the outer vertical surfaces 2222 of the two side bending parts 222 are respectively in limit fit with the second inner wall and the fourth inner wall in the first direction, and the holding hole guides the terminal to be mounted and improves the mounting stability of the terminal in the first direction; in the fourth terminal and the fifth terminal, the outer vertical surface of the bending part at one side can be attached to the second inner wall, the section of the other side of the terminal wiring part 22 is provided with a boss 226, the boss 226 can be in guide fit with the fourth inner wall 1104, and the terminal moves in the first direction at present; when the fourth inner wall of the accommodating hole for accommodating the fourth and fifth terminals is provided with the guide groove matched with the boss, the guide groove is matched with the boss to realize terminal installation guide, press mounting limit and torsion prevention, and the structure and the function of the guide groove can be the same as those of the guide groove in the first bending connector.

As shown in fig. 47 to 49, the terminal wiring portion of the first terminal and the terminal wiring portion of the second terminal are at the same height in the first direction, but are offset in the thickness direction (third direction) of the terminal wiring portion to increase the air insulation gap of the terminal wiring portion between adjacent terminals. Specifically, the terminal wire portion of the second terminal is bent toward the third direction, as shown in fig. 50, so that the terminal wire portion of the second terminal is far away from the terminal wire portion of the first terminal in the third direction, the air insulation gap between the two terminal wire portions in the third direction is D, the creepage distance between the two terminal wire portions is increased, and the voltage-resistant performance is ensured. Secondly, the terminal wire portion of the first terminal is bent along the third direction towards and away from the terminal wire portion of the second terminal, so that the bending structure 225 on the first terminal is formed, and therefore, the bending structure can enable the terminal wire portion of the first terminal to be far away from the terminal wire portion of the second terminal, and the air insulation gap is further increased. In summary, the terminal routing parts of the first terminal and the second terminal are bent in the direction away from each other in the thickness direction, so that space occupied by the terminal group in the third direction can be saved under the condition of enough air insulation clearance, and the space size requirement of the crimping surface relative to the plugging end can be met.

As shown in fig. 51 and 52, the bending structures 225 formed by bending the third, fourth and fifth terminals in the third direction are located on the second routing portion, and the bending structures on the third to fifth terminals are distributed at intervals in the first direction, so that the planes of the terminal tail portions of the third to fifth terminals can be seen during installation; the bent structure can provide a mounting surface 2251 that facilitates mounting of the terminal into the receiving hole, the mounting surface being a top surface of the bent structure, the arrangement of the mounting surface 2251 increasing the mating area of the terminal tail with the mounting tool (e.g., thimble). The direction that the terminal tail points to the terminal head is the terminal installation direction, because the bending structure that is distributed in the space in a ladder way is designed, the installation surface 2251 of a plurality of terminals can be seen simultaneously at the terminal tail from the installation direction of terminal, and terminal batch assembly is facilitated. During assembly, the ejector pins are abutted against the mounting surfaces 2251 of the plurality of terminals, and the plurality of terminals can be assembled at the same time, thereby improving assembly efficiency.

In the second bent connector, the fourth and fifth terminals may be assembled in the mounting direction by the following structural design: as shown in fig. 53 and 54, a cross section (cut surface) of the second routing portion 2202 facing the insertion end direction is engaged with the corresponding support base 12 on the housing 1; due to the presence of the bending structure, the support table 12 supporting the second wiring portion of the same terminal and the bottom surface 11051 of the opening are displaced in the third direction. The two support stands 12 supporting the fourth and fifth terminals are also arranged in a stepwise manner. The limit of the first terminal and the second terminal in the installation direction can be achieved through the barbs, the guide grooves are arranged in the corresponding accommodating holes of the first terminal and the second terminal, and the barbs are regarded as being installed in place when contacting the bottoms of the guide grooves, so that the terminal fixing type is the same as that of the first bent connector. The support 12 is also suitable for use in the first type of bending connector, and will not be described again.

As shown in fig. 53, the housing 1 is provided with a rib 13, which extends along the installation direction of the terminals, and after the first terminal and the second terminal are installed in place, the rib is located at one side of the terminal routing portion, and the rib can guide the installation process of the first terminal and the second terminal, and also can support the corresponding terminal routing portion to a certain extent in the third direction.

As shown in fig. 55 to 57, the shielding sheet 3 is integrally formed in an L-shaped sheet structure having a top wall 301 extending in a press-contact direction and a side wall 302 extending from one end of the top wall toward a mating face (or mating end), the terminals are located inside the shielding sheet, one end of the shielding sheet 3 near the mating face is divided into a plurality of insertion pieces 32 by a slit 31, the slit 31 extends in a second direction, the second direction is also a mounting direction of the shielding sheet, the plurality of insertion pieces 32 are arranged at intervals in a third direction, a protruding point 321 is provided on a side portion (cutting face or cross section) of the insertion piece 32, and a spring pin 322 protruding toward the shielding structure direction on the mating connector is provided on the insertion piece, so that the shielding structure of the mating two ends is connected when the connector is plugged. Correspondingly, the outer wall of the shell 1 is convexly provided with a column 14, the column 14 is arranged close to the insertion end of the bent connector, the column extends along the installation direction of the shielding sheet, a plurality of columns are distributed at intervals along the third direction, the split grooves 31 are used for avoiding the corresponding column 14, a slot 141 for inserting the corresponding inserting sheet is formed between the adjacent columns, the column is provided with a limiting part 142, the limiting part is used for guiding the installation of the shielding sheet and also used for limiting the movement of the shielding sheet along the first direction, the shielding sheet is prevented from being separated from the slot, and the section of the column with the limiting part is T-shaped; the bottom end surface of the slot 141 is a limiting surface 1411 connected with the shell 1, and the limiting surface 1411 is in stop fit with the inserting piece 32 in the installation direction of the shielding piece, so that the installation limit of the shielding piece is realized. As shown in fig. 58 and 59, the protruding point 321 is in interference fit with the post 14, and plays a role in fixing the shielding sheet. The salient points can be arranged on one side of the inserting sheet only, and can be arranged on two sides of the inserting sheet, and a plurality of salient points can be distributed in the installation direction of the shielding sheet; the protruding points can be arranged on each inserting sheet or part of the inserting sheets.

The roof other end of shielding piece is equipped with the ground connection foot 33 that extends to the printed plate direction, and the ground connection foot is used for being connected with ground connection structure on the printed plate, and ground connection foot 33 can be fish eye crimping structure, then ground connection structure on the printed plate be the ground connection hole that corresponds, and ground connection foot is impressed in the ground connection hole in order to realize fixed connection and the ground connection conduction of shielding piece and printed plate, and the ground connection foot is arranged in the third direction and is provided with a plurality of. In this embodiment, the ground leg is on the same crimp face as the crimp end of the terminal, as shown in fig. 60. After the shielding sheet is installed, the top wall 301 covers the tail of the terminal, and the shielding plate is in compression joint with the printed board to realize surrounding shielding of the terminal.

As shown in fig. 61 and 62, the crimp end 23 is of a fisheye structure, one end of the fisheye structure connected with the terminal routing part is of a fisheye root 231, the buckle plate 4 is provided with through holes 41 for the corresponding crimp ends to pass through, the crimp ends are arranged in a matrix on the crimp surface of the bent connector, the corresponding through holes are also arranged in a matrix on the buckle plate, the fisheye structure is crimped with the printed board after passing through the corresponding through holes 41, and the fisheye root 231 is in interference fit with the through holes 41 on the buckle plate so as to realize fixation of the fisheye structure and prevent pin withdrawal during crimping with the printed board; the pinch plate increases the structural strength of the fish eye root and prevents the kneeling needle during crimping. The pinch plate 4 can realize the relative positioning among the crimping ends of a plurality of terminal groups, improves the stability and the uniformity of crimping surfaces, and is favorable for crimping cooperation with the printed board. After the buckle plate is buckled in place, the buckle plate 4 is in limit fit with the shell 1 in the crimping direction. In the invention, the buckle plate and the shell are non-conductive, and the buckle plate and the shell can be integrally injection molded by non-conductive materials. Further, the buckle plate can be further fixed relatively with the shell through a limiting structure after being buckled in place, and the limiting structure can be a structure capable of realizing quick connection by a strong-fitting bulge, an adapting pit, a buckle groove and the like. In addition, the entrance of the through hole 41 is provided with a chamfer 411 facilitating entry of the fish-eye root 231 into the interior of the through hole.

The present invention also proposes a third embodiment of the bent connector, in which the terminal group provided inside is as shown in fig. 63 and 64, and is different from the terminal groups of the first and second bent connectors in that: the terminal routing portion is configured such that the fisheye structure and the jack structure are coplanar without providing the bending structure 225, and the second routing portion 2202 is bent by 90 ° with respect to the first routing portion 2201 as a whole, so that the thickness direction of the second routing portion is perpendicular to the thickness direction of the first routing portion. Specifically, the terminals are formed by cutting a metal strip, the cutting surface is the thickness surface of the terminals, in the first two types of bent connectors, as shown in fig. 65 and 66, as the second wire routing parts of the third to fifth terminals have the bending structures 225 formed by bending along the thickness direction, the thickness directions of the substrates of the first wire routing parts and the second wire routing parts are not changed, and are all in the third direction, so that the compression force direction of the fisheye structure and the force bearing direction of the shell (the shell provides force towards the direction of the printed board for the terminals) are not on the same straight line any more, namely are staggered in the thickness direction of the metal strip, and the fisheye structure is easy to withdraw pins and kneel pins when in compression connection. In this embodiment, the second routing portion of the three long terminals (third, fourth and fifth terminals) is integrally bent at 90 ° with respect to the first routing portion, the end face 22021 of the second routing portion 2202 facing away from the crimping end is abutted against the inner wall of the accommodating hole (the inner wall is the second inner wall facing the printed board) of the housing, and the inner wall of the accommodating hole provides a supporting force facing the direction of the printed board for the terminal assembled in the accommodating hole, as shown in fig. 66, at this time, the bearing direction of the housing and the crimping force direction of the fish-eye structure are on the same straight line, which is favorable for ensuring the crimping strength, preventing the fish-eye structure from withdrawing pins and kneeling pins during crimping. In this embodiment, after the second trace portion is bent by 90 °, the connected fisheye structures are in a horizontal state, but the centers of the fisheye structures in the same terminal set are still on the same straight line extending along the second direction; and the fish eye structures on the third to fifth terminals of the first two curved connectors are in a vertical state. The third curved connector has a structure as shown in fig. 67 and 68, the buckle 4 is Z-shaped, and two parallel plates in the buckle are matched with the shell in a guiding manner, so that the buckle assembly is facilitated, and the stability of the buckle after installation is improved. The second routing part of the fifth terminal can be provided with a convex hull when long, and other structural designs can adopt the scheme of the first/second bending connector to realize corresponding functions, and the description is omitted here.

In the above various embodiments of the bent connector, the bent connector includes 1 housing, 1 shielding plate, 2 buckle plates and 110 terminals, 110 receiving holes corresponding to the number of the terminals are provided on the housing, the 110 terminals are divided into 22 terminal groups, each terminal group includes 5 terminals having different sizes, and each buckle plate is responsible for fixing the crimping ends of 11 terminal groups, but the number of the parts is not limited by the present invention. The bent connector can be a bent plug or a bent socket. The foregoing is merely a preferred embodiment of the present invention, and is not described in detail in the prior art; any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention, without departing from the technical scope of the present invention, will still fall within the scope of the present invention.

Claims (11)

1. The terminal is arranged in the corresponding accommodating hole of the shell of the bent connector and comprises an inserting end, a crimping end and a terminal wiring part for connecting the inserting end and the crimping end, and a plurality of terminals are arranged in a layered manner to form a terminal group; in the same terminal group, the inserting ends of the plurality of terminals are arranged in rows along a first direction, and the crimping ends of the plurality of terminals are arranged in rows along a second direction perpendicular to the first direction; the method is characterized in that: the plurality of terminals include first terminal and second terminal that are in adjacent layer, and the inlayer of second terminal is located to first terminal, and the terminal of second terminal is walked line portion and is walked line portion towards the terminal of keeping away from first terminal along the third direction and is bent, and the third direction is perpendicular to first direction and second direction, and the terminal of first terminal walks line portion and the terminal of second terminal and walks line portion and be in same height in first direction, and the terminal of first terminal walks line portion and second terminal walks line portion and staggers in the third direction in order to form air insulation clearance.

2. The terminal according to claim 1, wherein: the terminal wire part of the first terminal is bent along a third direction and towards the terminal wire part far away from the second terminal, and the terminal wire part of the second terminal is bent along the third direction and towards the terminal wire part near the first terminal at the position near the crimping end of the terminal wire part, so that the crimping end of the first terminal and the crimping end of the second terminal are arranged in a row in the second direction.

3. The terminal according to claim 1, wherein: the terminal wiring part is provided with a barb which is used for being in interference fit with the accommodating hole.

4. The terminal according to claim 1, wherein: the crimping end is of a fish-eye structure.

5. The terminal according to claim 1, wherein: the terminal trace portion of the first terminal and the terminal trace portion of the second terminal forming the air-insulating gap are parallel to each other.

6. The terminal according to claim 1, wherein: the terminal wire portion of the first terminal and the terminal wire portion of the second terminal are in stop fit with the housing in the crimping direction.

7. A terminal according to claim 2, wherein: the inserting end comprises two symmetrically arranged elastic arms, the two elastic arms are positioned in a plane, the movable end of the elastic arm is bent towards one side which is separated from the plane to form a contact part, and the two contact parts are oppositely arranged to form an inserting hole structure; in the same terminal group, the center of each crimping end is coplanar with the center of the jack structure of each inserting end.

8. The terminal of claim 7, wherein: the joint of the contact part and the elastic arm is provided with a bending line, and the extending direction of the bending line and the inserting direction of the bent connector are provided with a first included angle.

9. The terminal of claim 7, wherein: the thickness direction of the contact part is perpendicular to the thickness direction of the elastic arm.

10. The terminal according to claim 1, wherein: the terminal wire part is provided with a reinforcing structure extending along the second direction, the reinforcing structure is a convex hull or a bending part, the convex hull is formed by stamping the terminal wire part towards the thickness direction of the convex hull, and the bending part is formed by bending the cross section of the terminal wire part towards the plane direction away from the terminal wire part.

11. The utility model provides a curved connector, includes the casing and locates the terminal in the casing, its characterized in that: the terminal is a terminal according to any one of claims 1 to 10.

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