CN202550162U - Connector terminal structure with circuit board - Google Patents

Abstract

The utility model provides a connector terminal structure with a circuit board, which is a circuit board with a signal module positioned in the tongue plate in front of the base of an insulating seat body, elastic terminals are correspondingly arranged at the through holes on the surface of the circuit board, the welding ends of the elastic terminals extend forwards from the back of the circuit board to the through holes to form connecting arms, the connecting arm extends into the through hole by a turning part and then reversely and obliquely extends to form an elastic arm and a contact part which are protruded out of the hollow hole corresponding to the tongue plate, each contact point on the circuit board corresponds to the position of the hole, each elastic terminal and each contact point are connected to a plurality of connecting terminals at the rear through a circuit, the connecting arm is tightly propped against the inner wall surface of the through space of the tongue plate to serve as elastic travel limit when the contact part of the elastic terminal is propped against, and the stroke of the upper and lower elastic deformation when the contact parts are butted can be increased through the through holes, so that the defects of difficult deformation and welding end peeling can be avoided.

Description

Connector terminal structure with circuit board

technical field

The utility model provides a connector terminal structure with a circuit board, especially the connector terminal structure with a circuit board which can effectively prevent deformation and avoid stripping of welding ends.

Background technique

Nowadays, the rapid development of electronic technology has made the type of computer develop from a desktop computer to a small and portable notebook computer, which is widely used in every corner of the society. When users want to perform data and signal transmission or communicate with other When peripheral devices are connected, a so-called peripheral device interface is required. Generally, the peripheral device interface on the market is the most common and widely used by the public, and the universal serial bus (USB) is still the mainstream.

Furthermore, with the development trend of computers or notebook computers, the connectors inside the computer are also greatly reduced. However, when the connector is reduced in the computer, it is necessary to consider the signal interference caused by its electromagnetic effect; The electromagnetic wave interference of the connector can be roughly divided into the following two types. One is the conducted interference (Conducted Disturbance) that is mainly transmitted to the connector through the conductors such as power lines and signal lines on the circuit board. Radiated Disturbance caused by the radiation space around the device; in addition, as the transmission speed of the USB3.0 connector is greatly improved, the number of conductive terminals increases and the distribution is dense. Any turning or bending that causes signal interference during high-frequency signal transmission (such as electrostatic interference, electromagnetic wave interference, impedance matching, noise interference, crosstalk interference from adjacent conductive terminals, etc.), USB3.0 connector and system motherboard interface The circuit impedance (Z) of the circuit must be matched. Only when this condition is met can the electromagnetic interference (EMI) and noise (noise) interference be effectively reduced, so that the USB3.0 connector and the system motherboard interface are correctly connected. Signal transmission; otherwise, the signal transmission between the USB3.0 connector and the system motherboard interface will produce signal reflection and noise interference, which will cause signal loss, deformation and distortion, resulting in bandwidth and signal quality not up to standard. And affect the normal operation of electronic devices (such as computers, network equipment, etc.).

However, the tongue plate of the general circuit board type design is mostly used at the copper foil contacts with a planar structure, such as the socket connector of HDMI type D. When it is applied to the socket connector of USB3.0, because the tongue plate of the circuit board type design The surface of the board needs to be provided with five copper foil contacts and four elastic terminals, so when the USB3.0 plug connector and socket connector are docked, the elastic terminals will produce several severe The first problem is that the contact part in front of the elastic terminal is located above the surface of the circuit board, so it is very easy to be hit by the positive force of the plug connector due to offset or excessive tolerance during docking, which will cause deformation of the elastic terminal Or the peeling or damage of the soldering part of the elastic terminal and the circuit board. The second problem is that when the plug connector and the socket connector are docked, when the corresponding terminals of the two are in electrical contact, the elastic terminal is subjected to lateral force toward the circuit board. Extrusion can easily cause peeling or damage of the soldering part between the elastic terminal and the circuit board. The third problem is that when the plug connector and the socket connector are docked, when the corresponding terminals of the two are in electrical contact, the elastic terminal is affected. The lateral force pushes toward the circuit board, and since the elastic terminal has no space on the circuit board for better elastic deformation, the elastic terminal is easily deformed.

Therefore, how to solve the deficiencies and insufficiencies in the high-frequency signal transmission and structural stability of the commonly used connector terminal structure with circuit boards is the direction that those engaged in this industry are eager to improve.

Contents of the invention

Therefore, in view of the problems and deficiencies in the use of the connector terminal structure of commonly used circuit boards, the designer collected relevant information, evaluated and considered from various parties, and used years of experience in research and development in this industry to continuously test and modify, and then designed the product. This new type of connector terminal structure with circuit board is born.

The main purpose of the utility model is to locate the circuit board of the signal module inside the tongue plate in front of the base of the insulating base, and each perforation on the surface of the circuit board is correspondingly provided with elastic terminals, and the welding ends of each elastic terminal are connected by the circuit board. Relative to the surface of the other side of the contact point, there is a connecting arm extending forward toward the perforation from the rear. The connecting arm extends into the perforation with a turning part and is located behind the perforation, and then extends obliquely in the opposite direction to protrude from the corresponding hollow hole of the tongue plate. The elastic arm and contact part of the elastic terminal can be used as the elastic stroke limit when the contact part of the elastic terminal is held against by the connecting arm against the inner wall of the tongue plate's insertion space, and the contact part can be increased up and down when docked through the perforation The stroke of elastic deformation can achieve that the elastic terminal is not easy to deform and avoid the lack of peeling of the soldered end.

In order to achieve the above purpose, the utility model provides a connector terminal structure with a circuit board, including an insulating base and a signal module, wherein:

A tongue plate with a penetrating space is provided at the front of the base of the insulating base, and at least one hollow hole and five holes at a distance in front of the hollow hole are arranged on the surface of the tongue plate;

The signal module is a circuit board located in the space where the tongue plate is inserted, and the surface of the circuit board is provided with a plurality of perforations, lines, contacts and welding parts, and the circuit board is located at each perforation. The welding end is welded on the circuit board, and the welding end extends from the rear of the surface of the other side of the circuit board relative to the contact point toward the through hole, and there is a connecting arm against the inner wall of the space where the tongue plate is inserted. The turning part extends into and is located in the perforation, and then extends obliquely in the opposite direction, with elastic arms and contact parts protruding from the hollow hole, and each contact point on the circuit board corresponds to the hole position of the tongue plate, and is behind the circuit board. Connecting terminals are welded at multiple welding parts of the circuit board. The four elastic terminals on the circuit board conform to the USB2.0 specification, while the four elastic terminals plus the five contacts on the front of the circuit board conform to the USB3.0 specification, and the four elastic terminals conform to the USB3.0 specification. An electrical conduction path is formed by connecting the five contacts to the nine soldering portions soldered with the connecting terminals through the circuit on the circuit board.

Said connector terminal structure with circuit board, wherein the accommodating space for accommodating the signal module is formed at the rear of the base of the insulating base body, and a partition is provided at the bottom side of the accommodating space, and the partition has Each connecting terminal of the circuit board is correspondingly passed through a plurality of through holes to the outside.

The connector terminal structure with a circuit board, wherein the insulating base body is covered with a shielding shell positioned outside, and a docking space is formed in front of the shielding shell, and a plurality of elastic terminals and contacts of the circuit board are located in the docking space At the rear of the shielding shell is a storage space for accommodating the insulating seat.

In the above-mentioned connector terminal structure with a circuit board, positioning pins extending downward are provided on the front of the shielding shell at the bottoms of both sides of the accommodating space.

The beneficial effects of the present invention are: the connector terminal structure with circuit board is easy to assemble, and the positioning is firm, which can effectively achieve the purpose of not easily deforming and avoiding the peeling of soldering ends, and can reduce electromagnetic wave interference (EMI) and crosstalk during signal transmission Wait for interference.

Description of drawings

Fig. 1 is the three-dimensional exterior view of the utility model;

Fig. 2 is the three-dimensional exploded view of the utility model;

Fig. 3 is a three-dimensional exploded view of another perspective of the utility model;

Fig. 4 is a side view sectional view of the utility model when the plug is not inserted;

Fig. 5 is a side sectional view of the utility model when the plug has been inserted.

Explanation of reference numerals: 1-insulating seat body; 10-accommodating space; 11-base; 111-block; 12-tongue plate; 120-piercing space; Partition plate; 131-through hole; 132-convex button; 2-signal module; 21-circuit board; 210-perforation; 211-circuit; 212-contact; 213-welding part; 22-elastic terminal; 222-connecting arm; 223-turning part; 224-elastic arm; 225-contact part; 23-connecting terminal; 3-shielding shell; 31-docking space; 32-accommodating space; 41-flat terminal; 42-conductive terminal.

Detailed ways

In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the utility model are now illustrated in detail with respect to the preferred embodiment of the utility model. Its structure and function are as follows, so as to fully understand.

Please refer to Fig. 1, Fig. 2, Fig. 3, and Fig. 4, which are the three-dimensional appearance diagram, the three-dimensional exploded view, the three-dimensional exploded view of another angle of view and the side sectional view without plug insertion of the utility model, which can be clearly seen from the figure It can be seen that the utility model includes an insulating base 1, a signal module 2 and a shielding shell 3, wherein:

The insulating seat body 1 has a base 11, and a tongue plate 12 in a suspended shape is provided at the front of the base 11. The tongue plate 12 is provided with a penetrating space 120 with an opening at one end in the transverse direction, and a space 120 is formed on the tongue plate 12. At least one hollow hole 121 is provided on the side surface, and five holes 122 are provided at a distance in front of the hollow hole 121. In addition, an accommodating space 10 is formed at the rear of the base 11, and the bottom side of the accommodating space 10 A partition 13 having a plurality of through holes 131 is provided at the top.

The signal module 2 has a horizontal circuit board 21, and a plurality of perforations 210, lines 211, contacts 212 and welding parts 213 are arranged on the surface of the circuit board 21, and elastic terminals 22 are correspondingly provided at each perforation 210, and each The welding end 221 of the elastic terminal 22 is welded on the circuit board 21 , and the welding end 221 extends from the back of the circuit board 21 to the through hole 210 with a connecting arm 222 , and the connecting arm 222 extends into the through hole 210 with a turning portion 223 Then there are elastic arms 224 and contact parts 225 extending obliquely in the opposite direction, and the elastic arms 224 and contact parts 225 of the elastic terminal 22 protrude from the outside of the perforation 210 of the circuit board 21, and are arranged on the front plate surface of the contact part 225. There are a plurality of contact points 212 in a staggered shape, and connecting terminals 23 are welded at a plurality of welding parts 213 at the rear of the circuit board 21. The four elastic terminals 22 on the circuit board 21 conform to the USB2.0 specification, and the four The elastic terminals 22 plus the five copper foil contacts 212 in front of the circuit board 21 conform to the USB3.0 specification, and the four elastic terminals 22 and the five contacts 212 are connected to the The nine welding portions 213 where the connection terminals 23 are welded form electrical conduction paths.

In the utility model, the soldering end 221 of the elastic terminal 22 and the welding method of the connecting terminal 23 and the circuit board 21 are respectively surface-mounting technology (Surface Mounting Technology, SMT) and a through hole welding type (Through Hole) on the circuit board 21. ), however, in the utility model, the soldering end 221 of the elastic terminal 22 and the soldering method of the connecting terminal 23 and the circuit board 21 can all be selected using surface mounting technology (Surface Mounting Technology, SMT) or It is carried out by piercing through holes on the circuit board 21. In addition, the circuit board 21 can be of a single-layer or multi-layer type. The above-mentioned simple modification and equivalent structural changes should be included in the patent of the present utility model in the same way. Within the scope, agree with Chen Ming.

A docking space 31 is formed at the front of the shielding case 3 , and a receiving space 32 for receiving the insulating base 1 is formed at the rear, and positioning pins 33 extending downward are provided at the bottoms of both sides of the receiving space 32 .

When the utility model is assembled, the welding end 221 of each elastic terminal 22 is welded on the circuit board 21 first, and each welding part 213 place at the rear of the circuit board 21 is also welded with a connecting terminal 23 at the same time, and then the circuit board 21 is front-facing. The tongue plate 12 on the base 11 of the insulating base 1 is pushed into the opening of the insertion space 120 at the rear, and the contact portion 225 of each elastic terminal 22 will protrude from the outer side of the corresponding hole 121. After the circuit board 21 is fully pushed After the insertion space 120 of the tongue plate 12 is positioned, each contact point 212 is exposed at the position of the corresponding hole 122 , and a plurality of connection terminals 23 are located above the accommodating space 10 .

Next, the partition 13 is pushed into the accommodating space 10 of the base 11 from bottom to top, and the suspended part below the connecting terminals 23 on the circuit board 21 passes through the corresponding through hole 131 on the partition 13 to the After the exterior, use the convex buckles 132 provided on both sides of the partition 13 to buckle in the corresponding block 111 on the inner wall of the base 11 to form a position, so that the signal module 2 can be firmly stored in the base 11 In the accommodating space 10, the above-mentioned assembled insulating base body 1 and signal module 2 are covered and positioned with the shielding case 3, and the insulating base body 1 is positioned in the accommodating space 32, and the assembled circuit board 21 The tongue plate 12 is located in the docking space 31, and its circuit board 21 is located on the front panel of the corresponding hole 122. There are five copper foil contacts 212, and there are four elastic terminals 22 slightly behind each adjacent gap, and each elastic terminal 22 The contact parts 225 protrude from the hollow hole 121, and use the circuit 211 on the circuit board 21 to connect each contact point 212 and the elastic terminal 22 to the nine welding parts 213 where the connecting terminal 23 is welded to form an electrical conduction path. .

Please refer to Fig. 2, Fig. 3, Fig. 4 and Fig. 5 at the same time, which are the three-dimensional exploded view of the utility model, the three-dimensional exploded view from another angle of view, the side sectional view of the plug not inserted and the side sectional view of the plug inserted , it can be clearly seen from the figure that when the utility model is in use, first insert the plug 4 toward the docking space 31 of the shielding shell 3, and make the flat terminal 41 in front of the plug 4 and the conductive terminal 42 in the rear respectively communicate with the signal The corresponding elastic terminal 22 on the circuit board 21 of the module 2 forms an electrical connection with the contact point 212. However, when the flat terminal 41 pushes the elastic terminal 22, its contact portion 225 will contact the flat terminal 41, and the contact portion 225 will be in contact with the flat terminal 41. The elastic arm 224 is elastically deformed towards the inner side of the through hole 210, but because the connecting arm 222 is pressed against the inner wall surface of the insertion space 120 of the tongue plate 12 as the elastic travel limit when the contact portion 225 of the elastic terminal 22 is abutted, at the same time, by means of The connecting arm 222 is firmly fixed by the surface of the circuit board 21 relative to the other side of the contact point 212 and the tongue plate 12, so that when the elastic terminal 22 is subjected to an extrusion force, the welding ends 221 welded on the circuit board 21 will not Excessive deformation results in the peeling of the soldering end 221 or the lack of deformation of the elastic terminal 22, and the stroke required for the elastic deformation up and down when the contact portion 225 of the elastic terminal 22 is docked can be increased through the perforation 210, so as to effectively solve the elastic terminal 22 on the circuit board 21. The problem of not being stable enough, and achieve the effect of easy assembly and reliable positioning.

When the plug 4 is inserted into the docking space 31 of the shielding shell 3, its flat terminal 41 will push the contact portion 225 of the elastic terminal 22 to elastically deform upward toward the inner side of the through hole 210. However, if the circuit board 21 does not have a through hole 210, the contact portion 225 of the elastic terminal 22 will directly bear against the lower bottom surface of the circuit board 21, causing the elastic terminal 22 to have insufficient space for better elastic deformation when it is docked, which in turn causes the elastic terminal 22 to be forcibly deformed. The original metal elasticity is lost. Therefore, the structural design of the perforation 210 of the circuit board 21 of the present invention can provide elastic deformation and displacement into the perforation 210 when the contact part 225 of the elastic terminal 22 is stressed, so that the elastic displacement stroke of the elastic terminal 22 becomes smaller. After the plug 4 is pulled out, the contact portion 225 of the elastic terminal 22 will bounce back and protrude outside the through hole 210 of the circuit board 21, which has a significantly improved practical effect.

Please refer to FIG. 3 , the circuit board 21 of the above-mentioned signal module 2 has five contacts 212 and four elastic terminals 22, wherein the central part of the five contacts 212 is used for grounding, and the two contacts 212 on both sides of the center are used for signal transmission. , the two sides of the other four elastic terminals 22 are power terminals and grounding terminals, and the two central elastic terminals 22 are used for signal transmission. It can be seen that when the circuit board 21 transmits signals, the contact 212 and the elastic terminals 22 transmit high-frequency signals At this time, the electromagnetic wave interference formed between each other can be induced and absorbed by the central contact 212 of the grounding function and the line 211 connected through it, and guided and transmitted to the connecting terminal 23 on the other side of the line 211 for grounding release, so as to reduce the signal transmission time. electromagnetic wave interference (EMI) and crosstalk and other interference.

Please refer to Fig. 2, Fig. 3, Fig. 5 again, when the plug 4 is inserted in the utility model, the flat plate terminal 41 in the front and the conductive terminal 42 in the rear can form an electrical connection with the corresponding elastic terminal 22 and the contact point 212 on the circuit board 21 respectively. The contact portion 225 is elastically deformed toward the inner side of the perforation 210 with the elastic arm 224, but because the connecting arm 222 is pressed against the inner wall surface of the insertion space 120 of the tongue plate 12 as the elastic travel limit when the contact portion 225 resists position, so that when the elastic terminal 22 is stressed, the welding ends 221 welded on the circuit board 21 will not be excessively deformed to cause peeling or the lack of deformation of the elastic terminal 22, and the contact portion 225 of the elastic terminal 22 can be increased through the perforation 210. The stroke of elastic deformation up and down is used to effectively solve the problem that the elastic terminal 22 on the circuit board 21 is not stable enough. These embodiments are not used to limit the scope of the patent application of the present utility model, and all others do not deviate from the technology disclosed in the present utility model The equivalent changes and modification changes completed under the spirit should be included in the scope of patents covered by the utility model.

In summary, the connector terminal structure with circuit board described in this utility model can indeed achieve its effect and purpose, so this utility model is a creation with excellent practicability, and it actually meets the application requirements for a new patent. The application is filed in accordance with the law, and I hope that the review committee will approve this case as soon as possible to protect the hard work of the designer. If there is any doubt in the bureau, please feel free to send a letter to instruct. The designer will do his best to cooperate, and I really appreciate it.

Claims (4)

1. the connector terminal structure of a tool circuit board includes insulating base frame and signaling module, it is characterized in that:

The place, pedestal the place ahead of this insulating base frame is provided with the hyoplastron that tool places the space, and is provided with five holes at least one thread emptying aperture and thread one preset distance place, emptying aperture the place ahead on the hyoplastron surface;

This signaling module has and is positioned at the circuit board that this hyoplastron places the space; And circuit board surface is provided with a plurality of perforation, circuit, contact and weld part; Circuit board is positioned at each perforation place correspondence and is provided with flexible terminal; And the welding ends of each flexible terminal is welded on the circuit board; And welding ends is extended with toward the perforation previous dynasty with respect to rear, the opposite side of contact surface by circuit board and pushes against the linking arm that places internal face place, space in hyoplastron, and this linking arm stretches into a turning point and is positioned at oppositely tiltedly to stretch to have after the perforation again and protrudes from the elastic arm and the contact site at emptying aperture place in detail, and each contact on the circuit board is corresponding to the hole location of this hyoplastron; And all be welded with splicing ear at a plurality of weld parts place at circuit board rear; Four flexible terminals on the circuit board meet the USB2.0 specification, and four flexible terminals add that five contacts in circuit board the place ahead meet the USB3.0 specification, and four flexible terminals and five contacts are connected to nine weld part places that are welded with splicing ear through the circuit on the circuit board and form electrical conducting path.

2. the connector terminal structure of tool circuit board according to claim 1; It is characterized in that; The place, pedestal rear of this insulating base frame is formed with the accommodation space of accommodating signaling module; And be provided with a dividing plate at accommodation space bottom side place, and each the splicing ear correspondence that has power circuit board on the dividing plate is crossing to outside a plurality of open-works.

3. the connector terminal structure of tool circuit board according to claim 1; It is characterized in that; There is shield shell the outside location that coats of this insulating base frame; And shield shell the place ahead is formed with the butt joint space, and makes a plurality of flexible terminals of circuit board and contact be positioned at place, butt joint space, and this shield shell rear is the receiving space of accommodating insulating base frame.

4. the connector terminal structure of tool circuit board according to claim 3 is characterized in that, this shield shell the place ahead all is provided with to the location pins that extends below at receiving space two side bottoms.

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