TWM624184U - A connector structure for a print circuit board - Google Patents

Abstract

A connector structure on a circuit board, which has a plurality of terminals, an insulating shell and a shielding shell; each terminal has a welding part and a butting part, and each terminal butting part is bent to have at least one side wing; the shielding shell It is made of a metal sheet material, the shielding shell is fixed outside the insulating shell, and the shielding shell and the insulating shell define an accommodating space for accommodating the butt connector; wherein each terminal docking part is connected with at least one side wing respectively. The connectors form electrical connections.

Description

Connector structure on the circuit board

The present invention relates to a connector structure on a circuit board, especially a connector structure mounted on a circuit board and having a small pitch of terminals.

The disclosure of the present invention is mainly aimed at a connector structure on a circuit board that is mounted on a circuit board and the center-to-center distance of each terminal is not greater than 0.75 mm (fine pitch), which is usually required on the circuit board Has a low profile. The small-pitch and low-height circuit-board connectors can be LVDS connectors used to transmit Low Voltage Differential Signals, compliant with eDP (Embedded DisplayPort), or Internal Universal Serial Bus (Universal Serial Bus) , Internal USB) and other industrial standard or other non-industrial standard electronic signal circuit board connector.

Generally, a connector on a circuit board uses an insulating casing to locate a plurality of conductive terminals, and each terminal is fixed at a predetermined position of the insulating casing by the fixed relationship between the insulating casing and the surface of each terminal. The connector on the circuit board is used for mating with a cable terminal connector. The cable terminal connector has a cable formed by a plurality of wires, and each of the wires has at least one core wire. Through the circuit The on-board connector and the mating cable terminal connector are matched with each other, so that the terminals of the connector on the circuit board and the core wires of the cable terminal connector can transmit electronic signals to each other. and the connector on this board matches the cable terminator The very important purpose of the design is to avoid the design shortcomings of soldering the original cable terminals to the circuit board. Once any one of the components has a problem, it is necessary to re-fabricate and re-solder new cable terminals. The cost is high and the rework is very cumbersome. Therefore, it is necessary to put forward the design concept of this creation.

Generally, the manufacture of connector terminals is to use the sheet metal processing method to cut and bend the metal sheet, and the terminals are divided into blanking terminals and bending terminals due to the different contact surfaces that form the butt. There are two types, among which the blanking terminal refers to the terminal that uses the trimmed edge of the metal sheet as the contact surface; the bending terminal refers to the use of the non-cut edge of the metal sheet as the contact surface. When the aforementioned two types of terminals are subjected to the same force, since the blanking terminal has a thicker material thickness in the direction of elastic deformation, the amount of elastic deformation will be smaller than that of the bent terminal. Similarly, when the blanking terminal and the bending terminal have the same amount of deformation, the elastic restoring force of the blanking terminal will be greater than that of the bending terminal. The elastic restoring force in response to the elastic deformation of the terminal is important for the matching of the two connectors, because the elastic restoring force of the terminal is directly related to the magnitude of the normal force on the contact surface between the terminal and a mating object.

The number of terminals used in a connector on a small-pitch circuit board can be as many as dozens of terminals. If blanking terminals are used, the matching of the connector with a pair of connectors requires a lot of force to ensure that each terminal can achieve elastic deformation. Because all blanking terminals must maintain a certain degree of elastic deformation at this time. However, when each of the blanking terminals has a certain degree of elastic deformation, the elastic restoring force of each of the terminals is likely to cause permanent damage to other components (such as the insulating housing) outside the connector terminal or components of the butt connector. Therefore, the connectors on small-pitch circuit boards generally use bent terminals. However, the disadvantage of using bent terminals for connectors on small-pitch circuit boards is that the restoring force of each terminal after elastic deformation is small, especially when the thickness of the metal sheet is small, this is a compromise that has to be made.

In addition, the connectors on the small-pitch circuit board not only occupy a small area on the circuit board, but also have many terminals for transmitting electronic signals. Therefore, the connectors on the circuit board require high manufacturing precision, especially the adjacent terminals. The rightness of the center of the shape. Although the alignment degree of adjacent terminals can be strictly required for the production line, the final product still has a considerable degree of defectiveness rate after the strict alignment degree is accumulated by the tolerance of most terminal arrangements. In addition, the phenomenon of tolerance accumulation may not only occur in the connector on the circuit board, but also in the mating connector, resulting in that two connectors that have passed the quality inspection cannot establish a reliable electrical connection state.

In order to improve the aforementioned problems such as soldering the cable terminals to the circuit board, this creation proposes a new technical solution for the structure of the connector on the circuit board.

The main purpose of this creation is to provide a connector structure on a circuit board, which can solve many problems such as welding the original cable terminal to the circuit board, and the connector on the circuit board is made of a metal sheet material with a small thickness and size. And each of the terminals can have an appropriate elastic restoring force after elastic deformation, so that each of the terminals can output a sufficient positive force toward the contact surface of a mating connector.

The secondary purpose of this creation is to provide a connector structure on a circuit board, which can improve the tolerance accumulation phenomenon of the correctness of each terminal of the connector when it is matched with a mating connector. .

The technical solution disclosed in the present invention is to provide a connector structure on a circuit board, the connector is used for butt joint with a mating connector, so that the two can transmit electronic signals to each other, and can solve the problem of the original cable Terminals are soldered to the circuit board and many other problems. The connector is suitable for being mounted on a circuit board, and the connector on the circuit board is used for mating with a The connectors mate with each other. The connector has a plurality of terminals, an insulating casing and a shielding casing, each of the terminals is positioned at a preset position through the insulating casing, and the shielding casing is disposed outside the insulating casing. Each of the terminals is respectively made from a metal sheet with a small thickness, each of the terminals has a welding part and a butt joint, each of the terminal welding parts is welded to the circuit contact of the circuit board, and each of the terminals is butted The terminals are respectively in an electrical connection state with the butt connector, and the opposite sides of the terminal butt parts are bent to have a pair of side wings.

Since in the technology disclosed in the present invention, each of the terminals is cut from a metal sheet with a small thickness, the flanks of each terminal are in contact with a mating connector by the cut edge of the metal sheet, then each This terminal belongs to the blanking terminal in the general sense. In addition, since the metal sheet with a small thickness can be a copper alloy sheet with a thickness of less than 1.2 mm, the metal sheet is easily deformed elastically in the thickness direction. Therefore, the technology disclosed in the present invention utilizes the bent side wings of each terminal. The terminals are changed into blanking terminals, thereby enhancing the mechanical strength of the terminals in the thickness direction of the metal sheet, so that the terminals have greater elastic recovery when elastically deformed along the thickness direction of the metal sheet force.

In the technology disclosed in the present invention, the shielding shell is made of a metal sheet material, the shielding shell and the surface of the insulating shell define an accommodating space for accommodating the butt connector, and the shielding shell faces toward A pair of guide tabs are extended in the accommodating space. When each of the guide tabs of the shielding case is elastically deformed in a direction away from the insulating case, each of the guide tabs generates an elastic restoring force toward the insulating case, and the mating connector is forced by the elastic restoring force Approach each of the terminals.

In addition, since each of the terminals has a pair of side wings, any side of each of the terminals can form a circuit path with the butt connector, so it can solve the problem that the original cable terminal is welded to the circuit. Board and many other problems, and can improve the tolerance accumulation phenomenon of the correctness of each terminal of the connector on the circuit board.

1: Connector on the circuit board

11: Terminals

111: Welding Department

112: Connection part

113: Docking Department

114: Flank

12: Insulating shell

121: Settlement groove

13: Shielding shell

131: accommodating space

132: Fixed tab

133: connecting pin

134: Guide tabs

14: Positioning pieces

141: connecting pin

142: Bending Department

143: Sag

2: Docking connector

21: Cable

211: Wire

212: core wire

22: Insulation board

23: Shield plate

231: Bending part

232: Button

3: Second docking connector

31: Cable

311: Wire

32: Shield plate

321: Bending part

322: Button

33: Daughter board

331: circuit contacts

4: The third docking connector

43: Shield plate

431: Bending part

432: Button

5: Connector on the second circuit board

54: Positioning pieces

541: connection pin

542: Bending Department

543: Sag

Figure 1 is a three-dimensional appearance view of a preferred embodiment of the present invention.

Figure 2 is an exploded view of a preferred embodiment of this creation.

Fig. 3 is a plan view of Fig. 1 .

FIG. 4 is a cross-sectional view A-A in FIG. 3 .

FIG. 5 is a cross-sectional view along B-B in FIG. 3 .

FIG. 6 is a three-dimensional external view of the butt connector.

Fig. 7 is an external view of the reverse side of Fig. 6.

FIG. 8 is a half-mating state diagram of the first stage of mating between the preferred embodiment of the present invention and the mating connector in FIG. 6 .

Fig. 9 is a C-C sectional view in Fig. 8.

FIG. 10 is a state diagram of the mating completion state of the second stage of mating between the preferred embodiment of the present invention and the mating connector in FIG. 6 .

Fig. 11 is a D-D sectional view in Fig. 10.

FIG. 12 is a perspective external view of the second docking connector.

FIG. 13 is a cross-sectional view at the position D-D of FIG. 10 after the second butt connector replaces the first butt connector.

FIG. 14 is a matching diagram of the preferred embodiment of the present invention and the first docking connector using other latching mechanisms.

Fig. 15 is a front side view of the mating of the two connectors in Fig. 14.

Fig. 16 is an E-E sectional view in Fig. 14.

As shown in FIG. 1 and FIG. 2, a preferred embodiment of the present invention discloses a structure of a connector 1 on a circuit board. The connector on the circuit board has a plurality of terminals 11, an insulating shell 12, and a shielding shell 13 and an optional positioning member 14. The on-board connector 1 is suitable for being mounted on a circuit board (not shown in the figure), and the on-board connector is used to mate with a mating connector 2 (see FIG. 6 ).

In the above-mentioned preferred embodiment of the present invention, each of the terminals 11 of the connector on the circuit board is made of a metal sheet, and the metal sheet can be a copper alloy sheet with a thickness of about 1.2 mm, so that each of the terminals is It is cut and folded to have a welding part 111 , a connecting part 112 and a butting part 113 respectively. The soldering portion 111 of each terminal 11 is a circuit contact that is soldered to the circuit board, and both ends of the connecting portion 112 of each terminal 11 are respectively connected to the soldering portion 111 and the butting portion 113 of each terminal 11 . The parts 113 are respectively used to contact with the mating connector 2 to establish electrical connection state. In this preferred embodiment, the connecting portions 112 of the terminals 11 of the connector 1 on the circuit board are positioned at their respective predetermined positions by the insulating housing 12 , and possible positioning means include connecting the terminals 11 to each other. The parts 112 are fixed and assembled to the insulating housing 12 , and the connecting parts 112 of the terminals 11 are embedded in the insulating housing 12 by means of in-mold decoration or insert molding.

In the preferred embodiment of the present invention, the opposite sides of the mating portion 113 of each terminal 11 of the connector 1 on the circuit board are bent to have two side wings 114 in the thickness direction of the metal sheet. At this time, as shown in FIG. 2 On the projection plane of the front view, the projection of the front end of the butting portion 113 of each of the terminals 11 is in a "U" shape. Since in the preferred embodiment of the present invention, the metal sheet is a copper alloy sheet with a thickness of about 1.2 mm, in the thickness direction of the metal sheet, the metal sheet has Poor mechanical rigidity, in order to strengthen the mechanical rigidity of each terminal 11 in the thickness direction of the metal plate, in the preferred embodiment of the present invention, a pair of side wings 114 are folded upward on both sides of the butting portion 113 of each terminal 11, so that each The terminals 11 mainly use the pair of side wings 114 to contact the butt connector 2, that is, the side wings 114 of the terminals 11 are in contact with the butt connector 2 using the cut edge of the metal sheet as the contact surface. After elastic deformation, the abutting portion 113 of 11 can exert a strong normal force on each of the contact surfaces.

In this preferred embodiment, there must be an allowable tolerance in the alignment degree formed by the center distance between the adjacent two terminals 11 and the parallelism of the corresponding parts. When the connector 1 on the circuit board has a plurality of terminals 11, The accumulation of allowable tolerances among the terminals 11 may cause the alignment of the specific terminals 11 of the connector 1 on the circuit board to deviate from the ideal design value. The tolerance accumulation phenomenon of the correctness of the terminals 11 is not different because the terminals 11 are assembled, in-mold decorated or embedded in the insulating shell 12 .

Since any one of the side wings 114 of the mating portion 113 of each terminal 11 can transmit the electronic signal of the mating connector 2 to the welding portion 111 of each terminal 11, even if the correctness of each terminal of the connector exists Tolerance accumulation phenomenon, but the two flanks 114 of the mating parts 113 of the terminals 11 of the connector 1 on the circuit board can provide compensation for the accumulated tolerance of the correctness of the terminals 11, resulting in the The function of the terminal 11 and the mating connector 2 to transmit electronic signals is not affected by the accumulation of alignment tolerances.

In the aforementioned disclosure of the present invention, the mating portion 113 of each terminal 11 of the connector 1 on the circuit board has strong mechanical rigidity. The flanks 114 of the abutting portion 113 are plastically deformed. In the preferred embodiment of the present invention, at the appropriate position of the insulating housing 12 corresponding to the butting portion 113 of each terminal 11 , the insulating housing 12 can be selectively placed on the insulating housing. 12. A settling groove 121 is provided to pass through the settling groove of the insulating shell 12. The groove 121 accommodates a part of the butt portion 113 of each of the terminals 11 , so that the butt portion 113 of each of the terminals 11 of the connector 1 on the circuit board can be suspended in this area without contacting the insulating housing 12 . Because the insulating housing 12 of the connector 1 on the circuit board has the settling groove 121, when the contact surface of the butt connector 2 also has high rigidity, the mating of the terminals 11 of the connector 1 on the circuit board The portion 113 has an elastically deformable space, thereby avoiding permanent deformation of the side wings 114 of each terminal 11 of the connector 1 on the circuit board due to the high rigidity of the contact surface of the butt connector 2 . In the implementation of this embodiment, in order to simplify the difficulty in controlling the precision of the settling groove 121 of the insulating shell 12 , the settling groove 121 of the insulating shell 12 may be a kind of groove penetrating the insulating shell 12 as shown in the figure. Slotted.

As shown in FIG. 2, FIG. 3 and FIG. 4, in the disclosure of the preferred embodiment of the present invention, the shielding shell 13 of the connector 1 on the circuit board is cut and folded from a metal sheet. The thin metal plate can be a stainless steel plate with a thickness of about 1.5 mm, and the shielding shell 13 of the connector 1 on the circuit board is fixed on the outer surface of the insulating shell 12, then the shielding shell of the connector 1 on the circuit board is fixed on the outer surface of the insulating shell 12. An accommodating space 131 may be formed between 13 and the outer surface of the insulating housing 13 , and the accommodating space 131 may allow the insertion of the butt connector 2 .

In the drawings of the above-mentioned preferred embodiment, the shielding shell 13 of the connector 1 on the circuit board can be provided with at least one fixing tab 132 (refer to FIG. 1 and FIG. 2 ). When the shielding shell 13 When the 13 is located at a preset position relative to the insulating shell 12, through (bending) the fixing tabs 132 of the shielding shell 13, the shielding shell 13 is connected to the insulating shell 13 by the fixing tabs 132. It is fixed to the insulating housing 13 and positioned in a fixed relationship.

In the disclosure of the aforementioned preferred embodiment, the shielding shell 13 of the connector 1 on the circuit board may further be provided with at least one connecting pin 133 toward the circuit board, and the connecting pin 133 of the shielding shell 13 may be soldered to the circuit board. on the circuit board (not shown in the figure), thereby making the connector 1 on the circuit board The shielding case 13 is fixed to a predetermined position on the circuit board.

As shown in Fig. 2, Fig. 3 and Fig. 5, in the preferred embodiment of the present invention, the insulating housing 12 of the connector 1 on the circuit board can optionally be provided with a positioning member 14, the positioning member At least one connecting pin 141 extends toward 14 the circuit board (not shown in the figure), and the connecting pin 141 of the positioning member 14 of the connector 1 on the circuit board can be soldered to the circuit board. In this preferred embodiment, the positioning member 14 of the connector 1 on the circuit board can be made of a metal sheet, such as a copper alloy sheet with a thickness of 1.5 mm, which is cut and folded, so the positioning member 14. The insulating shell 12 of the connector 1 on the circuit board can be fixed to the insulating shell 12 of the connector 1 on the circuit board by means of fixed assembly, in-mold decoration or embedded injection. form a fixed relationship. In the disclosure of this embodiment, the positioning member 14 penetrates through opposite sides of the insulating housing 12 of the connector 1 on the circuit board, and both ends of the positioning member respectively have a connecting pin 141 , but this is only a possibility It is only the disclosure of the means, and the general knowledge of the connector industry can selectively cut the positioning member 14 from the middle area to form two positioning members 14 .

As shown in FIG. 6 and FIG. 7, a mating connector 2 that is matched with the connector 1 on the circuit board is a kind of cable terminal connector, that is, the mating connector 2 is installed in a bundle of wires terminal of cable 21. The cable 21 of the butt connector 2 has a plurality of wires 211 , each of the wires 211 of the butt connector 2 has at least one core wire 212 (see FIG. 7 ), and each of the core wires 212 of the butt connector 2 is It is disposed on a surface of an insulating plate 22 of the butt connector 2 . The butt connector 2 is provided with a shielding plate 23 on the surface away from an insulating plate 22 on which the core wires are arranged. The shielding plate 23 of the butt connector 2 provides electromagnetic shielding protection for the exposed core wires 212 . As shown in FIG. 8 and FIG. 9, in the cross section of the butt connector 2 in the longitudinal extension direction of each of the wires 211, each of the core wires 212 has an approximately circular cross section, this is because the butt connector 2 is a quilt However, those with ordinary knowledge in the connector industry can replace the flat cable with a flexible flat cable (Flat Flexible Cable; FFC), so that the cable 21 of the docking connector 2 Each of the core wires 212 has an approximately rectangular cross section in the longitudinal extension direction.

As shown in FIG. 8 , FIG. 9 , FIG. 10 and FIG. 11 , the connector 1 on the circuit board transmits electrical signals to each other through the terminals 11 and the core wires 212 of the mating connector 2 . Although the butt connector 2 does not have terminals made of metal sheets, the butt connector 2 transmits electronic signals through the metal core wires 212 of the wires 211 . The core wire 212 is in reliable contact with each of the terminals 11 of the connector 1 on the circuit board to generate the function of transmitting electronic signals.

For the production line, the ideal way to match the mating connector 2 with the connector 1 on the circuit board is to achieve a low insertion force (low insertion force, LIF), and even the best way to match is zero insertion force. The method of zero insertion force (ZIF) realizes the matching of the two connectors, that is, the mating between the mating connector 2 and the connector 1 on the circuit board has low resistance or zero resistance.

As shown in Fig. 8, Fig. 9, Fig. 10 and Fig. 11, in order to realize the mating between the butt connector 2 and the connector 1 on the circuit board in a way of low insertion force or zero insertion force, the butt connection The mating of the connector 2 with the connector 1 on the circuit board is achieved in a two-stage combination, wherein the first stage is to insert the mating connector 2 into the connector 1 on the circuit board with low insertion force or zero insertion force. a predetermined position, and then lock the relative position of the docking connector 2 and the connector 1 on the circuit board through a latching mechanism in the second stage.

In the aforementioned disclosure, the connector 1 on the circuit board defines an accommodating space 131 between the surface of the insulating shell 12 and the shielding shell 13 , and the shielding shell 13 of the connector 1 on the circuit board is in the accommodating space 131 . There are two guide tabs 134 extending from the opening of the space 131 toward the insulating housing 12, so that the pair of When the mating connector 2 is guided into the accommodating space 131 by the guiding tabs 134 of the connector 1 on the circuit board, the insulating plate 22 of the mating connector 2 is guided by the guiding tabs of the connector 1 on the circuit board. 134 is pushed toward the insulating housing 12, then the butt connector 2 enters the accommodating space 131 of the connector 1 on the circuit board in a state of low interference or no interference, that is, the butt connector 2 is inserted in a low state The first-stage semi-matching state is achieved by entering the accommodating space 131 of the connector 1 on the circuit board by means of force or zero insertion force.

As shown in Fig. 10 and Fig. 11, in the first-stage semi-matching state, the circuit board connector 1 and the mating connector 2 are achieved in a way of low insertion force or zero insertion force. In the semi-matching state of the first stage, there is only low interference force or zero interference force between the butt connector 2 and the connector 1 on the circuit board. At this time, the terminals 11 of the connector 1 on the circuit board and the Each of the core wires 212 of the mating connector 1 does not have a positive force sufficient to form a reliable contact. Therefore, in the second stage of the mating between the connector 1 and the mating connector 2 on the circuit board, an appropriate latching mechanism is required. In order to make the terminals 11 and the core wires 212 in normal contact with each other, a sufficient positive force is formed between the contact surfaces of the terminals 11 and the core wires 212 .

As shown in Fig. 2, Fig. 7, Fig. 10 and Fig. 11, a possible latching machine is to interlock with the shielding plate 23 of the mating connector 2 through the positioning member 14 of the connector 1 on the circuit board Buckle, so that the terminals 11 of the connector 1 on the circuit board and the core wires 212 of the mating connector 2 are in normal contact with each other. The positioning member 14 of the connector 1 on the circuit board is respectively bent with a bent portion 142 near the two connecting pins 142, and the two bent portions 142 are provided with a recess 143 opposite to each other. The material thickness of the recess 143 is thinner than other locations. In the above figures, each of the recesses 143 of the connector 1 on the circuit board is a through hole. The shielding plate 23 of the mating connector 2 has a bending portion 231 corresponding to each of the bent portions 142 of the connector 1 on the circuit board, and Each of the curved portions 231 has a protruding buckle 232 facing away from each other.

As shown in FIG. 10 and FIG. 11 , when the connector 1 on the circuit board and the mating connector 2 enter the second stage of complete matching state, the bent portions 142 of the connector 1 on the circuit board are respectively It is fixed with the curved portion 231 of the docking connector 2. At this time, the protruding buttons 232 of the docking connector 2 respectively protrude toward the recesses 143 of the connector 1 on the circuit board, so that the Each of the protruding buckles 143 and each of the recesses 143 of the connector 1 on the circuit board are snapped and fixed to each other, and the mating connector 2 and the connector 1 on the circuit board can achieve the second-stage matching mutual bolt locking. bit.

As shown in FIGS. 12 and 13 is a structure of a second docking connector 3 , and the second docking connector 3 can replace the docking connector 2 disclosed in FIGS. 6 and 7 . The second mating connector 3 is installed at the end of a bundle of cables 31, each of the cables 31 has a plurality of wires 311, each of the wires 311 has at least one core wire (not shown in the figure), and each of the core wires Soldered to a daughter board 33, each of the daughter boards 33 has a plurality of circuit contacts 331 thereon. The daughter board 33 is a small paddle card installed in the cable terminal connector. The daughter board 33 can be arranged with a selected number of electronic circuits, electronic components and circuit contacts 331 according to functional requirements. .

As shown in Fig. 1, Fig. 2, Fig. 12 and Fig. 13, when the second mating connector 3 is matched with the connector 1 on the circuit board, since the sub-board 33 is relatively brittle and difficult to generate local elasticity Deformed rigid material, so in the aforementioned disclosure about the connector 1 on the circuit board, the insulating housing 12 of the connector 1 on the circuit board is provided with a sinking groove at the position corresponding to the butting portion 113 of each terminal 11 121, the space of the recessed groove 121 of the insulating housing 12 can be used to elastically deform the mating portion 113 of each terminal 11, so when the second mating connector 3 with high rigidity is inserted into the connector 1 on the circuit board When inside the accommodating space 131, through the insulating shell of the connector 1 on the circuit board The settling grooves 121 of 12 can elastically deform the mating portions 113 of the terminals 11 , so that the side wings 114 of the connector 1 on the circuit board can apply appropriate pressure to the circuit contacts 331 of the second mating connector 3 . normal force without permanent plastic deformation.

In the aforementioned disclosure, since each terminal 11 of the connector 1 on the circuit board has two wings 114 respectively, each terminal 11 of the connector 1 on the circuit board only needs to have one wing 114 and each terminal 114 of the mating connector 2 The surface of the core wire 212 can be contacted to form a circuit conduction; in addition, when each of the side wings 114 of the circuit board connector 1 and each of the circuit contacts 331 of the second mating connector 3 are in contact with the surface, the circuit board connector 1 Each of the terminals 11 only needs to be in contact with each of the circuit contacts 331 of the second butt connector 3 to form a circuit conduction, so the correctness of each of the terminals 11 of the connector 1 on the circuit board Tolerance build-up is avoided and a reliable electrical connection is established.

The latching mechanism disclosed in the aforementioned Figures 8, 9, 10 and 11 is intended to provide a low insertion force or zero insertion force matching method; however, as shown in Figures 14, 15 and 16 As shown in the figure, other matching methods other than those described above are also feasible.

As shown in FIG. 14, FIG. 15 and FIG. 16, it is disclosed that a connector 5 on a second circuit board is matched with a third connector 4, the connector 5 on the second circuit board and the third mating connector are matched 4 Adopt a two-stage matching method different from the previous one. In order to simplify the following disclosure in this specification, for the disclosure of the connector 5 on the second circuit board, only the features of the connector 5 on the second circuit board are assigned with different part numbers from the connector 1 on the circuit board and described; Similarly, for the disclosure of the third butt connector 4 , only the features of the third butt connector 4 are assigned different part numbers from the aforementioned butt connector 2 and described.

The positioning member 54 of the connector 5 on the second circuit board (54 is absent in the figure) is made of a The metal sheet is cut and folded to form, the positioning member 54 has a connecting pin 541 at two ends away from each other, and each connecting pin 541 can be soldered to the circuit board. The positioning member 54 of the connector 5 on the second circuit board is provided with a bent portion 542 adjacent to each of the connecting pins 541, and each bent portion 542 has a recess in the direction away from the circuit board (not shown in the figure). 543. The opposite sides of the shielding plate 43 of the third mating connector 4 are respectively bent with a curved portion 431 in the direction away from the circuit board (not shown in the figure), and each of the curved portions 431 is respectively directed toward the second circuit board A protrusion 432 is provided in the recess 543 of the connector 5 .

When the third mating connector 4 enters the connector 5 on the second circuit board along a predetermined matching direction, the guide tabs 134 of the connector 5 on the second circuit board guide the third mating connection The connector 4 enters the accommodating space 131 , so that each of the protruding buttons 432 of the third docking connector 4 enters each of the recesses 543 of the connector 5 on the second circuit board. The protrusions 432 and the recesses 543 of the connectors 5 on each of the second circuit boards are fixed to each other, so that the third mating connector 4 and the connector 5 on the second circuit board are matched with each other.

The aforementioned embodiments disclosed in this specification are intended to make those skilled in the art aware of the techniques disclosed in this creation; however, the techniques disclosed in this creation are not only applicable to the aforementioned embodiments, and those skilled in the art can rely on the techniques disclosed in this creation. Disclosed and directly or modified to apply the above-disclosed embodiments of the present invention. Any application or modification made by those skilled in the art based on the disclosure of this creation is still an equivalent application or modification of this creation as long as its application or modification does not depart from the scope defined by the scope of the patent application for this creation.

1: Connector on the circuit board

11: Terminals

113: Docking Department

114: Flank

12: Insulating shell

13: Shielding shell

131: accommodating space

132: Fixed tab

133: connecting pin

134: Guide tabs

141: connecting pin

142: Bending Department

143: Sag

Claims (13)

A connector structure on a circuit board is installed on a circuit board, the connector on the circuit board is matched with a butt connector; the connector has a plurality of terminals, an insulating shell and a shielding shell; each of the terminals It is made of a thin metal plate and has a welding part and a butt joint. Each of the terminal welding parts is welded to the circuit contacts of the circuit board; The terminal is positioned in the insulating housing; the shielding housing is made of a metal sheet material, the shielding housing is fixed outside the insulating housing, and the shielding housing and the insulating housing define and accommodate the butt connection An accommodation space of the connector; wherein each of the terminal butt parts is bent along the thickness direction of the metal sheet to have at least one wing, and each of the terminal butt parts is electrically connected to the butt connector with at least one wing. The connector structure on the circuit board of claim 1, wherein each of the terminals is made by cutting a metal sheet, and each of the terminal flanks is in contact with the mating connector by the cut edge of the metal sheet. The connector structure on the circuit board of claim 1, wherein the mating connector has a plurality of wires, and each of the wires has at least one core wire, and each of the core wires is electrically connected to at least one side of each of the terminals. The connector structure on the circuit board of claim 3, wherein each of the core wires has an approximately circular cross-section on the cross-section in the extending direction of each of the wires. The connector structure on the circuit board according to claim 3, wherein each of the core wires has an approximately rectangular cross-section on a cross-section in the extending direction of each of the wires. The connector structure on the circuit board of claim 1, wherein the insulating housing has a settling groove corresponding to the position of each of the terminal abutting parts, and each of the terminal abutting parts is partially sunk into the settling groove under force. The connector structure on the circuit board as claimed in claim 1, wherein the butt connector has a plurality of wires and a sub-board, and each of the wires is soldered to the sub-board, and a plurality of circuit contacts are arranged on the surface of the sub-board, and each of the sub-boards is provided with a plurality of circuit contacts. The circuit contacts of the sub-board are respectively electrically connected to at least one side wing of the terminal butt joints. The connector structure on a circuit board according to claim 1, wherein the shielding shell extends at least one guide tab toward the accommodating space, and the guide tab can be elastically deformed in a direction away from the circuit board. The connector structure on a circuit board according to claim 1, wherein the shielding case is provided with at least one connecting pin toward the circuit board, and the connecting pin is electrically connected to the circuit board. The connector structure on a circuit board according to claim 1, wherein the connector on the circuit board further has a positioning member, the positioning member is fixed to the insulating housing, and the positioning member has at least one connecting pin, and the positioning member has at least one connecting pin. The connecting pin is electrically connected to the circuit board. The connector structure on a circuit board as claimed in claim 1, wherein the metal sheet is a copper alloy sheet with a thickness of less than 1.2 mm. The connector structure on a circuit board according to claim 10, wherein the positioning member of the connector on the circuit board has a bent portion near the connecting pin, and the bent portion has a depression. The connector structure on the circuit board of claim 12, wherein the butt connector is inserted into a predetermined position of the accommodating space with low insertion force or zero insertion force in the first stage; the butt connector is inserted in the second stage The stage is clamped to the recess of the bent portion of the positioning member, so that the connector on the circuit board and the butt connector are matched with each other.

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