CN115986455A - Terminal and bent connector using same - Google Patents

Abstract

The invention relates to a terminal and uses the angle connector of this terminal, the terminal is located in the holding hole of the body, multiple terminals are laminated and arranged and formed a terminal group, the terminal includes inserting end, crimping end and terminal routing part, the inserting end of multiple terminals is arranged in a row along the first direction, the crimping end of multiple terminals is arranged in a row along the second direction perpendicular to first direction; the inserting end comprises two symmetrical elastic arms which are positioned in a plane, the elastic arms are bent towards one side separated from the plane to form a contact part, and the two contact parts are oppositely arranged to form a jack structure; the terminal routing part is bent along the thickness direction to form a bending structure, so that the center of each crimping end and the center of each inserting end in the same terminal group are coplanar. The center of each crimping end is coplanar with the center of the inserting end, so that the stress direction of the inserting end is coplanar with the bearing direction of the printed board to the crimping ends, the opposite insertion is facilitated, the stress is balanced during the opposite insertion, and the space occupied by the terminal on the shell can be saved.

Description

Terminal and bent connector using same

Technical Field

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

Background

In the prior art, the bent connector includes a connector housing and terminal groups arranged in the connector housing in parallel, each terminal group includes a plurality of arranged terminals, one end of each terminal is an insertion end, the other end of each terminal is a crimping end, a part extending between the insertion end and the crimping end is a terminal routing part, and when the insertion end and the crimping end are bent at 90 degrees, the insertion surface and the crimping surface of the bent connector are perpendicular to each other. In the existing terminal group, after the insertion end is bent to form an insertion hole structure, the centers of the crimping end and the insertion end are not in the same plane, when the bent connector and the adaptive connector are oppositely inserted, the stress direction of the insertion end and the bearing direction of the printed board provided for the crimping end are not in the same plane, the structural strength of the terminal group is possibly influenced due to unbalanced stress, and the terminal is possibly bent and deformed in the installation or use process.

Disclosure of Invention

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

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the present invention, there is provided an elbow connector comprising: 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, each terminal comprises an inserting end, a crimping end and a terminal routing part for connecting the inserting end with the crimping end, the inserting ends of the terminals are arranged in a row along a first direction, and the crimping ends of the terminals are arranged in a row along a second direction perpendicular to the first direction; the inserting end comprises two elastic arms which are symmetrically arranged, the two elastic arms are positioned in a plane, the movable end of each elastic arm is bent towards one side separated from the plane to form a contact part, and the two contact parts are oppositely arranged to form a jack structure; the terminal routing part is bent along the thickness direction to form a bending structure, so that the center of each crimping end and the center of each inserting end in the same terminal group are coplanar. The beneficial effects are that: the insertion end is bent and formed towards the direction of the plane where the separation material belt is located to form a jack structure, meanwhile, the terminal routing part is bent in the corresponding direction, so that the center of the crimping end and the center of the insertion end are coplanar, and in the insertion process of the bent connector and the adaptive connector, the stress direction of the insertion end and the force bearing direction provided by the printed board for the crimping end are in the same plane, so that the opposite insertion is facilitated, the stress of the whole terminal group is more balanced in the opposite insertion process, and the insertion strength of the terminal group is improved; in addition, because the bending direction when the contact part is formed is the same as the bending direction of the terminal forming the bending structure in the thickness direction of the terminal, the space occupied by the terminal in the thickness direction can be effectively reduced, and the effect of saving the inner space of the shell is realized.

Furthermore, 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: compared with the terminal with the U-shaped bending base body, the bending line and the terminal inserting direction are at a certain angle instead of parallel, so that the material consumption in terminal forming can be reduced, the terminal structure is simpler and easier to form, and the inserting end structure is more stable.

Furthermore, the contact part comprises a first sub-contact part connected with the elastic arm and a second sub-contact part formed by bending and extending the tail end of the first sub-contact part, the joint of the first sub-contact part and the second sub-contact part is a contact part, and a second included angle is formed between the first sub-contact part and the second sub-contact part.

Further, in one terminal, the two first sub-contact portions are bent in a direction to approach each other, and the two second sub-contact portions are bent in a direction to separate from each other. The beneficial effects are that: the recesses formed by the two contact portions themselves are oppositely concave to form a pair of generally V-shaped or C-shaped contact portions, which facilitates contact with the mating terminal.

Furthermore, the extending direction of the second sub-contact part and the inserting direction have a third included angle, so that the adaptive terminal can be guided into the jack structure.

Further, the thickness direction of the contact part is perpendicular to the thickness direction of the elastic arm. The contact part is bent perpendicular to the plane where the elastic arm is located, and the contact area between the contact part and the adaptive terminal is increased.

Furthermore, one end of the terminal wire routing part is forked to form two elastic arms.

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

Furthermore, the terminal routing part is provided with a reinforcing structure, the reinforcing structure extends along the routing direction of the terminal routing part, and the reinforcing structure is a bending part formed by bending the section of the terminal routing part towards the direction away from the plane of the terminal routing part. The bending part can improve the structural strength of the wiring part of the terminal, prevent the terminal from deforming and is beneficial to the opposite insertion of the bent connector.

Furthermore, the bending part and the contact part are positioned on the same side in the thickness direction of the terminal wiring part. That is, the bending is performed toward the same side in the thickness direction of the terminal when the bending portion is formed and the contact portion is formed, which is beneficial to reducing the size of the terminal in the thickness direction.

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

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

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

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

Fig. 3A and 3B are schematic diagrams of terminal sets in a first flex connector according to the present invention.

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

Fig. 5A and 5B are schematic diagrams of terminal sets in a second type of flex connector according to the present invention.

Fig. 6 is a schematic view of a housing of a second type of elbow connector according to the invention.

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

Fig. 8A is a schematic diagram of a terminal group.

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

Fig. 9 is a schematic view of the relationship between the bending line of the insertion end of the terminal and the insertion direction.

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

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

Fig. 12 is a schematic view of a male hull in a first type of elbow connector.

Fig. 13 is a schematic view of the bending part in the second bending type connector.

Fig. 14 is a schematic view of another arrangement of the bending part in the second bending connector.

Fig. 15 is a schematic view of the positions of the base body of the bent portions and the terminal wiring portions.

Fig. 16 and 17 are schematic views showing the positions of barbs in the first type of elbow connector.

Fig. 18 is a schematic view of the position of barbs in the second type of elbow connector.

Fig. 19-21 are schematic views of the engagement of barbs with a shell in a second type of elbow connector.

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

Fig. 25 is a schematic view showing a step-like arrangement of guide grooves in the first type of bending connector.

Fig. 26 is an enlarged view showing a step-like arrangement of guide grooves in the first type of bending connector.

Fig. 27 is a schematic view showing positions of guide grooves for engaging with the first and second terminals in the first type of bent connector.

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

Fig. 33 is a schematic view of the mating of the platform portion on the terminal and the housing in the second type of elbow connector.

Fig. 34 is a schematic view of a land portion on a terminal in a second type of elbow connector.

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

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

Fig. 42 is a schematic view of the terminal set of the second type of bend connector with the crimp and the plug ends of the terminals coplanar.

Fig. 43 is a schematic view of the terminal group of the first angle connector with the press-fit ends and the mating ends of the terminals coplanar.

Fig. 44A is a schematic diagram of the engagement of the bent portions of the terminals with the receiving holes in the second bending connector.

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

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

Fig. 46A is a schematic view of the third terminal of the second angle connector being mated with the receiving hole.

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

Fig. 47 to 50 are schematic views of positional relationships between terminal trace portions of the first terminal and terminal trace portions of the second terminal.

Fig. 51 is a schematic view of the mounting faces on a plurality of terminals as they can be simultaneously seen at the tail portions of the terminals.

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

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

Fig. 55 is a schematic view of the shield plate before assembly with the housing.

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

Fig. 57 is an enlarged view of a portion ii of fig. 55.

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

Fig. 59 is a schematic view of the interference fit of the projections on the shield plate with the housing.

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

FIG. 61 is a schematic view of the buckle being snapped onto the housing.

FIG. 62 is a schematic view of the engagement of the latch with the terminal.

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

Fig. 64 is a schematic view of the structure of terminal routing portions in the third type of elbow connector.

Fig. 65 is a schematic view showing a relationship between a pressure receiving direction of the terminal and a housing force receiving direction in the first and second bending connectors.

Fig. 66 is a diagram showing the relationship between the press-contact force receiving direction and the housing force receiving direction of the terminal in the third bending type connector.

Fig. 67 is a structural component diagram of a third type of elbow connector.

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

Detailed Description

The following describes the bending connector according to the present invention in detail with reference to the accompanying drawings and preferred embodiments. If there are several embodiments of the elbow connector, the features of these embodiments may be combined with each other without conflict. When the description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. It should be understood that the terms "first," "second," and the like, as used in the description and in the claims of the present invention, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The use of "top," "bottom," "front," "back," "up," "down," and the like in this disclosure is made for convenience of description only and is not limited to a particular orientation or position.

The invention discloses a bending 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 a terminal group comprising 5 terminals as an example for explanation, 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 a terminal group, the insertion ends 21 of a plurality of terminals are arranged in a row in a first direction, the press-contact ends 23 of the plurality of terminals are arranged in a row in a second direction perpendicular to the first direction, the second direction is a direction of inserting and removing the bent connector, the receiving holes are arranged to penetrate in the second direction, and the terminals are inserted into the receiving holes in the second direction. The inserting end 21 is used for inserting and matching an adapting terminal in the adapting connector, the crimping end 23 is used for crimping and matching the printed board, and the bending in the bent connector means that 90-degree bending is formed between the inserting and matching surface of the bent connector and the adapting connector and the crimping surface of the bent connector and the printed board. When the terminal group is provided with a plurality of, a plurality of terminal groups are distributed in parallel in the shell along a third direction, and the third direction is perpendicular to the first direction and the second direction. In the case, the terminals of the terminal group are arranged in layers, and if the terminal at the innermost layer is the first terminal and the terminal at the outermost layer is the fifth terminal, the first terminal is located at the inner layer of the second terminal, the second terminal is located at the inner layer of the third terminal, and so on.

The first type of bent connector is shown in fig. 1, 3A, 3B and 4, and the second type of bent connector is shown in fig. 2, 5A, 5B and 6; the two types of bent connectors are different in the shapes of the terminal routing portions of the terminals and the accommodating holes 11 for accommodating the terminals in the housing 1, and the fisheye structures of the insertion ends and the crimping ends are the same. The accommodating holes are rectangular holes, the buckle plates and the shielding plates are buckled, and finally the assembly is completed to form a state shown in fig. 7.

Referring to fig. 8A and 8B, in any of the embodiments of the angle connector, the insertion end 21 of the terminal is formed by bending; the inserting end 21 comprises two elastic arms 211 which are symmetrically arranged, one end of the terminal wiring part is forked to form a pair of the elastic arms, and the elastic arms 211 provide deformation capacity for the inserting end 21 and realize elastic contact conduction when the terminal wiring part is inserted. Elastic arm 211 is the piece formula structure, and two elastic arms in the same terminal are located a vertical plane, and the expansion end of elastic arm is to breaking away from this vertical plane lateral buckling in order to form a contact part 212, and two contact parts 212 of same terminal set up relatively in order to form one with the jack structure 213 that closes of inserting mutually of adaptation terminal, and the end of inserting of adaptation terminal closes can be the piece formula contact pin. A first angle is formed between the extending direction (as the direction a in fig. 9) of the bending line 214 at the connection between the contact portion 212 and the elastic arm 211 and the inserting direction, that is, the bending line 214 is not parallel to the inserting 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 a distal end of the first sub-contact portion, and a contact portion 2123 at a connection point of the first sub-contact portion and the second sub-contact portion is in contact 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 toward the direction close to each other, the two second sub-contact portions 2122 are bent toward the direction away 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 guided. In the present invention, the contact portion and the elastic arm are disposed 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 mating terminal is increased, and the clamping force to the mating terminal is stronger.

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

In this embodiment, the two contact portions 212 in the terminal are both 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 can be bent in opposite directions, which can also form a receptacle structure with elastic deformability, in which the two contact portions are staggered, and the two contacts distributed in staggered pairs can be adapted to an adaptive terminal with a wider dimension in a third direction (i.e., the thickness direction of the elastic arm), in which the width dimension of the insertion surface of the terminal group in the third direction is larger; on the contrary, the two opposite contact parts can be matched with the narrower adaptive terminal, thereby being beneficial to reducing the size of the insertion surface of the terminal group.

The terminal routing portion 22 is easily bent and deformed when it is long, and in order to improve the structural strength of the terminal routing portion, a reinforcing structure is provided on the terminal routing portion, the reinforcing structure may be a convex hull or a bent portion, and the extending direction of the reinforcing structure is the same as the routing direction of the terminal routing 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 cut from a metal material strip, the convex hull 221 can be formed by punching towards the thickness direction of the terminal routing portion, and the back surface of the convex hull 221 forms a concave portion, so that the convex hull forming efficiency is high. In other embodiments, the terminal routing portion may be directly provided with a convex hull in a welding manner, so that the structural strength of the terminal routing portion can be improved. The convex hull 221 is suitable for being arranged on a longer section of the terminal routing part, in the terminal group, the terminal routing part 22 of the terminal is in an L shape, the L-shaped terminal routing part comprises a first routing part 2201 and a second routing part 2202 which are perpendicular to each other, the first routing part 2201 extends along the installation direction of the terminal, the second routing part 2202 extends along the crimping direction of the terminal, the convex hull is arranged on the longer section (the first routing part) of the terminal routing part, and the convex hull is not arranged on the shorter section (the second routing part) of the terminal routing part.

As shown in fig. 13, in the second bending type connector, at least one side of the terminal routing portion 22 is bent to form a bent portion 222, and the bent portion 222 extends along the routing direction of the terminal routing portion. The cross section (i.e., cutting plane) of the terminal trace part is bent towards the direction away from the plane of the terminal trace part to form the bending part 222. As shown in fig. 14, the bent portions of one terminal may be arranged in segments, i.e., one at a distance. The bent parts can also be distributed on two sides of the terminal routing part; when the two sides of the terminal routing part are both bent with the bending parts, the bending parts on different sides can be distributed in a staggered manner in the routing direction. In order to prevent interference when the material is spread, a notch 2203 is provided in the terminal routing portion to avoid a bent portion of an adjacent terminal and to avoid interference with the adjacent terminal when the bent portion is spread. Referring to fig. 15, the angle at which the bent portion is bent when formed is α, and in the present embodiment, α is preferably 90 °.

In a possible embodiment, the convex hull and the bending portion can be used in combination and appear on the terminal, for example, on the L-shaped terminal routing portion, the convex hull is disposed on the first routing portion 2201, the bending portion is disposed on the second routing portion 2202, or the convex hull and the bending portion are disposed on the first routing portion/the second routing portion. When the extending length of a certain bent portion is long, a process groove 2204 may be formed at the boundary between the bent portion and the base 220 of the terminal routing portion to facilitate bending, as shown in fig. 14. Set up convex closure and bend the portion homoenergetic and improve resistant plug and the fatigue resistance of terminal, make terminal life longer, and can effectively improve the current-carrying capacity of terminal.

As shown in fig. 16 and 17, in the first bending connector, protruding barbs 223 are respectively disposed on two side cross 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 accommodating hole 11 of the housing to limit the position of the terminal in the insertion direction, so as to fix the terminal and prevent pin withdrawal. Barb 223 can set up and walk line portion near the position of inserting joint end department at the terminal, and the barb of line portion both sides is walked to the terminal is in same height in terminal cartridge direction, and the barb of a plurality of terminals is also in same height in terminal cartridge direction. In other embodiments, the barbs on the two sides can be arranged in a staggered mode in the terminal inserting direction.

As shown in fig. 18, in the second type of the bent connector, the terminal routing portions 22 are provided with protruding barbs 223, and in the same terminal group, the barbs on different terminals are arranged in a step shape in the same plane. As shown in fig. 19 to 21, the barb is disposed on the bending portion 222 corresponding to the terminal routing portion, and the barb 223 and the inner wall of the accommodating hole 11 are in interference fit to limit the position of the terminal in the inserting and closing direction, so as to fix the terminal and prevent the pin from being withdrawn. In each terminal group, the barbs arranged in a step shape and the barbs at the same height can exist at the same time, and the barbs which play a fixing role on the first terminal and the second terminal are at the same height in the inserting and combining direction and are arranged close to the inserting and combining end.

As shown in fig. 22 to 24, in the first bending connector embodiment, a guide groove 111 is provided in the accommodating hole 11 of the housing, the guide groove 111 is located at a mating position of the accommodating hole and the terminal, the guide groove 111 extends along an insertion direction of the terminal, and the guide groove 111 is guided to mate with the terminal routing portion during terminal insertion to perform an assembly guiding function. Since the barbs of the terminals in the same terminal group are at the same height in the inserting direction, in the accommodating holes corresponding to the terminals one by one, the groove bottoms of all the guide grooves are at the same height, but the lengths of the terminal routing parts in the terminal inserting direction are changed in a step manner (the lengths of the terminal routing parts of the fifth terminal, the fourth terminal and the third terminal in the terminal installing direction are decreased progressively), so that the corresponding guide grooves are correspondingly arranged in a step manner in space, as shown in fig. 25 and 26. Fig. 27 shows a first guide groove 1111 fitted to the first terminal and a second guide groove 1112 fitted to the second terminal in this embodiment. Specifically, as shown in fig. 28 to 32, the fifth guide groove 1115 engaged with the fifth terminal, the fourth guide groove 1114 engaged with the fourth terminal, and the third guide groove 1113 engaged with the third terminal are distributed in a step shape. 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 routing part 22, so that the guide groove 111 can limit the terminal in the thickness direction of the terminal routing part 22 and prevent the terminal from deflecting in the shell; guide way 111 can also dodge barb 223, prevents in the assembling process and excessively interferes with the barb, influences terminal cartridge. After the terminals are inserted in place, the barbs 223 on the terminals are in limited fit with the groove bottoms of the guide grooves 111 in the inserting direction, so that the inserting ends of the terminals are positioned on the inserting surface at the same height. Preferably, the guide grooves 111 in each accommodating hole 11 are symmetrically distributed, that is, two inner walls which are relatively parallel to each other in each accommodating hole are respectively provided with a guide groove, so that barbs on two sides are stressed in a balanced manner and are not easy to deflect in the terminal insertion process, the terminal insertion process is facilitated, and further, the barbs on two sides of the terminal are abutted to the bottoms of the corresponding guide grooves after the terminal is assembled in place, and the terminal is prevented from being in a deflected state after being installed; and the guide grooves arranged oppositely can fix two sides of the terminal wiring part, so that the deflection or torsion preventing capability is improved.

As shown in fig. 33 and 34, in the second bending connector, the second wire portion 2202, which extends along the crimping direction, of the terminal wire portions of the third terminal, the fourth terminal and the fifth terminal is bent toward the thickness direction thereof to form a platform portion 224, the surface of the platform portion 224, which is in stop fit with the housing in the crimping direction, is a platform surface 2241, and after the terminals are assembled in place, the platform surface 2241 is in stop fit with the housing in the crimping direction, which plays a role in supporting and fixing the terminals during the crimping process, preventing the terminals from moving in the housing, and preventing the pins from moving in the crimping direction; and the bending to form the platform part 224 can also enhance the structural strength of the terminal routing part. As shown in fig. 35 to 39, before the first to fifth terminals are fitted into the corresponding accommodation holes, the housing does not provide support to the terminals in the crimping direction; as shown in fig. 40 and 41, after the first to fifth terminals are mounted in place, the platform surfaces 2241 of the third, fourth and fifth terminals abut against the surface of the housing parallel to the printed board, and the housing provides a supporting force for the platform portion in the direction facing the printed board; if the platform part of the third terminal abuts against the first supporting surface 101, the platform part of the fourth terminal abuts against the second supporting surface 102, and the platform part of the fifth terminal abuts against the third supporting surface 103, the first supporting surface, the second supporting surface, and the third supporting surface are distributed in a step shape. And the terminal wire traces of the first and second terminals may be provided with a force facing the direction of the printed board by the first supporting surface 101. In addition, the platform parts 224 of the fourth and fifth terminals are 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 routing portions of the third to fifth terminals in the first bending 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: the fish eye structure centers of the crimping ends 23 of all the terminals in the same terminal group are coplanar with the jack structure centers of the inserting ends, so that the bent connector is beneficial to the opposite insertion with the adaptive connector, the stress is balanced during the opposite insertion, and the stress direction of each inserting end is coplanar with the force bearing direction provided by the printed board for each crimping end; "coplanar" refers to a plane in which both the first direction and the second direction are located. The bending direction performed when forming the bending structure 225 is the same as the bending direction in which the contact portion 212 is formed in the terminal thickness direction, which is advantageous for reducing the size of the terminal group in the third direction and achieving the purpose of saving space. Similarly, the terminal in the first connector also has a bending structure 225, as shown in fig. 43, and is not described again.

As shown in fig. 44 to 46, in the second bending type connector, the bent portion 222 not only can increase the structural strength of the terminal and prevent the terminal from being deformed, but also can prevent the terminal from being twisted during the assembly process. Specifically, the accommodating hole 11 includes a first inner wall 1101, a second inner wall 1102, a third inner wall 1103, and a fourth inner wall 1104 that are sequentially connected in the circumferential direction, where the first inner wall is disposed opposite to the third inner wall, and the second inner wall is disposed opposite to the fourth inner wall. Taking the fifth terminal as an example, the section 2221 of the bent part 222 of the fifth terminal is pressed against the first inner wall 1101, and the base 220 of the terminal wire 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 being twisted in the assembling process; the fourth terminal and the third terminal are similar in torsion-resistant mode, and are not described in detail. In addition, taking the third terminal as an example, with reference to fig. 46a and 46b, when the two sides of the terminal routing portion have the bent portions 222, the cross sections of the two bent portions are abutted to the first inner wall, and the base body of the terminal routing portion is in contact with the third inner wall, so that the terminal is pressed into the accommodating hole in an interference manner, which is stronger in torsion resistance; the above-described surface on which the direction of torsion is located is perpendicular to the mounting direction of the terminal. Furthermore, an opening 1105 penetrating along the crimping direction is arranged at the position of the upper edge of the fourth inner wall connected with the third inner wall, the opening is used for the second routing part to penetrate out towards the direction of the printed circuit board, and when the width of the opening in the third direction is equal to the thickness of the terminal routing part, the second routing part is clamped in the opening, thereby improving the torsion resistance of the second routing part to a certain extent. Openings corresponding to the third to fifth terminals are distributed in a step shape in space, and the bottom surface 11051 of the opening 1105 can also support a corresponding second routing part, so that terminal assembly limiting is realized; the openings are also applicable to the first angled connector embodiment. Further, as shown in fig. 46B, in the third terminal, the outer vertical surfaces 2222 of the bent portions 222 on two sides of the third terminal are respectively in limit fit with the second inner wall and the fourth inner wall in the first direction, and the accommodation 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 bent part at one side can be attached to the second inner wall, the boss 226 is arranged on the section at the other side of the terminal routing part 22, the boss 226 can be matched with the fourth inner wall 1104 in a guiding way, and the current terminal moves in the first direction; when the fourth inner wall of the accommodating hole for accommodating the fourth terminal and the fifth terminal 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 bent connector.

As shown in fig. 47 to 49, the terminal wiring portions of the first terminals and the terminal wiring portions of the second terminals are at the same height in the first direction, but are offset in the thickness direction (third direction) of the terminal wiring portions to increase the air insulation gap of the terminal wiring portions between the adjacent terminals. Specifically, the terminal trace portions of the second terminals are bent in the third direction, and the bent portions are as shown in fig. 50, so that the terminal trace portions of the second terminals are away from the terminal trace portions of the first terminals in the third direction, and the air insulation gap between the two terminal trace portions in the third direction is D. Next, the terminal trace portion of the first terminal is bent in the third direction toward and away from the terminal trace portion of the second terminal to form the bent structure 225 on the first terminal, and thus the bent structure can further separate the terminal trace portion of the first terminal from the terminal trace portion of the second terminal, and further increase the air insulation gap. In summary, the terminal routing parts of the first terminal and the second terminal are bent towards the direction away from each other in the thickness direction, so that the space occupied by the terminal group in the third direction can be saved under the condition of having a large enough air insulation gap, and the requirement of the space size of the crimping surface relative to the insertion end is 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 tails of the third to fifth terminals can be seen when the terminals are mounted; the bending structure can provide a mounting surface 2251 which is beneficial for mounting the terminal into the accommodating hole, the mounting surface is the top surface of the bending structure, and the arrangement of the mounting surface 2251 improves the matching area of the tail part of the terminal and a mounting tool (such as an ejector pin). The direction that the terminal afterbody points to the terminal head is the terminal installation direction, because designed the bending structure of ladder distribution in the space, then look from the installation direction of terminal, can see the installation face 2251 of a plurality of terminals simultaneously at the terminal afterbody, do benefit to terminal batch assembly. During assembly, the thimble abuts against the mounting surface 2251 of the plurality of terminals, and the plurality of terminals can be assembled at the same time, thereby improving the assembly efficiency.

In the second type of bent connector, the fourth and fifth terminals can be assembled and limited in the mounting direction by the following structural design: as shown in fig. 53 and 54, the cross section (cut surface) of the second wire 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 bent structure, the support base 12 supporting the second routing 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 terminal and the fifth terminal are also arranged in a step shape. The first terminal and the second terminal can be limited in the installation direction through barbs, guide grooves are formed in the accommodating holes corresponding to the first terminal and the second terminal, and the barbs are considered to be installed in place when contacting with the bottoms of the guide grooves, so that the first terminal and the second terminal are the same as the terminal fixing form in the first bent connector. The support 12 is also suitable for use in the first angled connector and will not be described in detail.

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

As shown in fig. 55 to 57, the shielding plate 3 is an L-shaped plate structure, and has a top wall 301 extending along the crimping direction and a side wall 302 extending from one end of the top wall to the insertion surface (or insertion end), the terminal is located inside the shielding plate, one end of the shielding plate 3 close to the insertion surface is divided into a plurality of insertion pieces 32 by a splitting groove 31, the splitting groove 31 extends along a second direction, which is also the insertion direction of the shielding plate, the plurality of insertion pieces 32 are arranged at intervals along a third direction, the side portions (cutting surface or cross section) of the insertion pieces 32 are provided with protruding points 321, and the insertion pieces are provided with elastic pins 322 protruding towards the shielding structure on the adapter connector, so that the shielding structures of the two insertion ends are connected when the connector is inserted. Correspondingly, the outer wall of the shell 1 is convexly provided with a plurality of columns 14, the columns 14 are arranged close to the inserting end of the bent connector, the columns extend along the mounting direction of the shielding sheet, the columns are distributed at intervals along the third direction, the splitting groove 31 is used for avoiding the corresponding columns 14, a slot 141 for inserting the corresponding inserting sheet is formed between the adjacent columns, the columns are provided with limiting parts 142, the limiting parts are used for guiding the mounting of the shielding sheet and limiting the movement of the shielding sheet along the first direction to prevent the shielding sheet from separating from the slot, and the cross section of the column with the limiting parts is in a T shape; the bottom end face of the slot 141 is a limiting face 1411 connected with the housing 1, and the limiting face 1411 and the insertion sheet 32 are in stop fit in the mounting direction of the shielding sheet to realize mounting and limiting of the shielding sheet. As shown in fig. 58 and 59, the protruding points 321 are in interference fit with the posts 14, and serve as a fixing function of the shielding plate. The salient points can be arranged on only one side of the inserting sheet or on two sides of the inserting sheet, and a plurality of the salient points can be distributed in the mounting direction of the shielding sheet; the bumps may be provided on each of the blades or on a portion of the blades.

The roof other end of shielding piece is equipped with the ground connection foot 33 that extends to the printing board direction, and the ground connection foot is used for being connected with the ground structure on the printing board, and ground connection foot 33 can be fisheye crimping structure, and then the ground structure on the printing board is the ground connection hole that corresponds, and the ground connection foot is impressed in the ground connection hole and is switched on with the fixed connection and the ground connection of realizing shielding piece and printing board, and the ground connection foot is arranged in the third direction and is provided with a plurality ofly. In this embodiment, the grounding pin is located on the same crimping surface as the crimping end of the terminal, as shown in fig. 60. After the shielding plate is installed, the tail part of the terminal is covered by the top wall 301, and the terminal is surrounded and shielded after the shielding plate is in compression joint with the printed board.

As shown in fig. 61 and 62, the crimping end 23 is a fisheye structure, one end of the fisheye structure connected with the terminal routing part is a fisheye root 231, through holes 41 for the corresponding crimping ends to penetrate out are arranged on the buckle 4, the crimping ends are arranged on the crimping surface of the bending connector in a matrix form, correspondingly, the through holes are also arranged on the buckle in a matrix form, the fisheye structure penetrates out from the corresponding through hole 41 and is crimped with the printed board, the fisheye root 231 is in interference fit with the through hole 41 on the buckle to realize the fixation of the fisheye structure, and pin withdrawal is prevented when the fisheye structure is crimped with the printed board; the buckle plate increases the structural strength of the root part of the fisheye and prevents kneeling needles during crimping. The buckle 4 can realize the relative positioning between the crimping ends of a plurality of terminal groups, improves the stability and the uniformity of the crimping surface, and is beneficial to the crimping matching with the printed board. After the buckle plates are buckled in place, the buckle plates 4 are in limit fit with the shell 1 in the crimping direction. In the invention, the pinch plate and the shell are not conductive, and both the pinch plate and the shell can be integrally formed by non-conductive materials in an injection molding mode. Furthermore, the buckle plate can be further relatively fixed with the shell through a limiting structure after being fastened in place, and the limiting structure can be a structure which can realize quick connection by being forcibly provided with a protrusion, an adaptive pit, a buckle groove and the like. In addition, the entrance of the through hole 41 is provided with a chamfer 411 facilitating the entry of the fisheye root 231 into the interior of the through hole.

The present invention also proposes a third embodiment of the bending connector, in which the terminal sets disposed inside are as shown in fig. 63 and 64, and the difference between the terminal sets of the first and second bending connectors is that: the terminal routing portions do not need to be provided with the bending structures 225 to enable the fisheye structures and the jack structures to be coplanar, but the whole second routing portion 2202 is bent by 90 degrees relative to the first routing portion 2201, and the thickness direction of the second routing portion is perpendicular to the thickness direction of the first routing portion. Specifically, in the former two kinds of bent connectors, as shown in fig. 65 and 66, since the second routing portions of the third to fifth terminals have the bending structures 225 formed by bending in the thickness direction, the thickness directions of the bases of the first routing portion and the second routing portion are not changed, and both are in the third direction, the pressure-bonding force direction of the fisheye structure and the housing force-bearing direction (the housing provides the force to the terminal in the direction of the printed board) are not aligned, that is, the fisheye structure is staggered in the thickness direction of the metal material strip, which easily causes the fisheye structure to withdraw the pin and kneel pin during pressure bonding. In this embodiment, the whole second routing portion of the three long terminals (the third, fourth, and fifth terminals) is bent at 90 ° with respect to the first routing portion, the end surface 22021 of the second routing portion 2202 away from the crimping end abuts against the inner wall of the receiving hole of the housing (the inner wall is the second inner wall facing the printed board), and the inner wall of the receiving hole provides a supporting force facing the printed board direction for the terminal assembled in the receiving hole, as shown in fig. 66, at this time, the force bearing direction of the housing and the crimping force bearing direction of the fisheye structure are on the same straight line, which is beneficial to ensuring the crimping strength, and preventing the fisheye structure from withdrawing the pin and kneeling the pin when crimping. In this embodiment, the second routing portion is bent by 90 degrees to make the fisheye structures connected with the second routing portion in a horizontal state, but the centers of all the fisheye structures in the same terminal group are still on the same straight line extending along the second direction; and the fisheye structures on the third to fifth terminals of the first two curved connectors are in a vertical state. The structure of the third bending connector is shown in figures 67 and 68, the shape of the pinch plate 4 is Z-shaped, two parallel plate parts in the pinch plate are matched with the shell in a guiding mode, the pinch plate assembly is facilitated, and the stability of the pinch plate after installation is improved. The convex hull can be arranged on the second wiring part of the fifth terminal when the length of the second wiring part is longer, and other structural designs can adopt the scheme of the first/second bent connector to realize corresponding functions, which is not described herein again.

In the above embodiments of the angle connector, the angle connector includes 1 housing, 1 shielding plate, 2 locking plates and 110 terminals, the housing is provided with 110 receiving holes corresponding to the number of the terminals, the 110 terminals are divided into 22 terminal groups, each terminal group includes 5 terminals with different sizes, and each locking plate is responsible for fixing the crimping ends of 11 terminal groups, but the invention does not limit the number of the parts. The angle connector can be an angle plug or an angle socket. The foregoing is illustrative of the preferred embodiments of the present invention and is not to be construed as limiting thereof; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made within the technical scope of the present invention.

Claims (11)

1. A terminal is arranged in a corresponding accommodating hole (11) of a shell of an elbow connector and comprises an inserting end (21), a crimping end (23) and a terminal routing part (22) for connecting the inserting end with the crimping end, wherein a plurality of terminals are arranged in a layer shape to form a terminal group; in the same terminal group, the inserting ends of the terminals are arranged in a row along a first direction, and the crimping ends of the terminals are arranged in a row along a second direction which is vertical to the first direction; the method is characterized in that: the inserting end (21) comprises two elastic arms (211) which are symmetrically arranged, the two elastic arms (211) are positioned in a plane, the movable end of each elastic arm (211) is bent towards one side separated from the plane to form a contact part (212), and the two contact parts (212) are oppositely arranged to form a jack structure (213); the terminal routing part (22) is bent along the thickness direction thereof to form a bending structure (225) so that the center of each crimping end and the center of each inserting end in the same terminal group are coplanar.

2. A terminal according to claim 1, wherein: the joint of the contact part (212) and the elastic arm (211) is provided with a bending line (214), and the extending direction of the bending line (214) and the inserting direction of the bending connector form a first included angle.

3. A terminal according to claim 2, wherein: the contact part (212) comprises a first sub-contact part (2121) connected with the elastic arm (211) and a second sub-contact part (2122) formed by bending and extending the tail end of the first sub-contact part, the joint of the first sub-contact part (2121) and the second sub-contact part (2122) is a contact part (2123), and the first sub-contact part (2121) and the second sub-contact part (2122) form a second included angle.

4. A terminal according to claim 3, wherein: the two first sub-contact portions (2121) are bent in a direction toward each other, and the two second sub-contact portions (2122) are bent in a direction away from each other.

5. A terminal according to claim 4, wherein: the extending direction of the second sub-contact part (2122) and the inserting direction form a third included angle.

6. A terminal according to claim 1, wherein: the thickness direction of the contact part (212) is perpendicular to the thickness direction of the elastic arm (211).

7. A terminal according to claim 1, wherein: one end of the terminal wiring part (22) is branched to form two elastic arms (211).

8. A terminal as claimed in claim 1, wherein: the crimping end (23) is of a fish eye structure.

9. A terminal according to claim 1, wherein: the terminal routing part (22) is provided with a reinforcing structure, the reinforcing structure extends along the routing direction of the terminal routing part, and the reinforcing structure is a bending part (222) formed by bending the section of the terminal routing part towards the direction departing from the plane of the terminal routing part.

10. A terminal according to claim 9, wherein: the bent portion (222) and the contact portion (212) are located on the same side in the thickness direction of the terminal wiring portion.

11. The utility model provides a bending connector, includes casing (1) and locates terminal (2) in the casing, its characterized in that: the terminal (2) is as claimed in any one of claims 1-10.

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