CN217882063U

CN217882063U - SMT bus connector

Info

Publication number: CN217882063U
Application number: CN202221938215.4U
Authority: CN
Inventors: 张旭东
Original assignee: Dongguan Yzconn Electronic Co ltd
Current assignee: Dongguan Yzconn Electronic Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-11-22
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses an SMT bus bar connector, which comprises an insulating body and a plurality of terminals; the insulation body is provided with a bottom plate part, inserting cavities are arranged on the bottom plate part at intervals from left to right, and a protective cover made of plastic materials is detachably arranged on the insulation body; the visor is including top suction plate and integrated connection in front side buckled plate and the rear side buckled plate of top suction plate lower extreme, the lower extreme of top suction plate still is provided with a plurality of card protruding of controlling the interval arrangement setting, the visor from last down the cover be located insulator, the trailing flank of front side buckled plate and the leading flank of all lateral walls close-fitting contact mutually, the leading flank of rear side buckled plate and the trailing flank of all lateral walls close-fitting contact mutually, the protruding corresponding grafting intracavity of embedding of card and the internal face close-fitting contact in grafting chamber for the visor forms firm the connection with row female connector, and the visor uses as SMT automated production's auxiliary fitting, and enough the satisfaction is absorb the use, and the visor can not drop.

Description

SMT bus connector

Technical Field

The utility model belongs to the technical field of the female connector field is arranged to SMT and specifically relates to indicate a female connector is arranged to SMT.

Background

One of the bus bar connectors is a general connecting device widely applied to electronics, electrical appliances and instruments, and mainly plays a role in current or signal transmission. The bottom of the female header connector and the contact surface of the PCB circuit board can be designed to be SMT patch type or DIP direct insertion 180 degrees.

Because the SMT paster type has the advantage of easy automatic manufacturing process, most of the conventional bus bar connectors adopt the SMT paster type design. However, arrange female connector's SMT paster face in the bottom in grafting chamber, the opening side periphery in row female connector's grafting chamber is narrower, adsorption area is little, lead to being difficult to satisfy the manipulator and absorbing the demand, and adopt the manipulator of clamp formula, it is not high to have the clamp to get efficiency, press from both sides the problem on hindering the connector surface easily, so tend to select in the industry to absorb the formula manipulator, for this reason, additionally be equipped with on the casing and absorb the piece has appeared, a manipulator adsorption demand on satisfying SMT automation line, common structure has:

there is the buckle closure through the buckle on the plastic body, both sides are equipped with the catching groove respectively around the plastic body, the buckle closure is including snatching portion and the elastic connection arm of a body coupling in the portion of snatching lower extreme, the top surface of snatching the portion sets up for planar structure, elastic connection arm has the pothook of toward interior integrative extension, the buckle closure lock is on the plastic body, pothook and catching groove joint, it utilizes pothook and catching groove to become elastic fastening, and this kind of structure can satisfy the manipulator absorption demand on the SMT automation line, but, the catching groove sets up on the plastic body, leads to the casing of connector itself to need to change the design, leads to the design of product to change, and the injection moulding mould of product needs to be revised, and moreover, the structure of this kind of buckle closure is more complicated, and is higher to injection moulding's requirement.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides a female connector is arranged to SMT, and it is through visor and insulator's structural design and cooperation, the visor from the top down covers and is established on insulator for the visor forms firm the being connected with female connector of row, and the visor uses as the auxiliary assembly of SMT automated production, and enough the satisfaction is absorb the use, and the visor can not drop, and what be exactly the structure of this kind of visor is comparatively simple in addition, easily injection moulding preparation, compares the plastic part among the conventional art, and the degree of difficulty of moulding plastics of visor is lower relatively.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an SMT bus connector comprises an insulating body and a plurality of terminals; the insulation body is provided with a bottom plate part, the periphery of the bottom plate part integrally extends upwards to form a peripheral side wall, a plurality of terminal holes which are arranged at intervals left and right are formed between the peripheral side wall and the bottom plate part in a surrounding manner, plug-in cavities are arranged at the upper ends of the terminal holes at intervals left and right, the plug-in cavities and the terminal holes are communicated in a manner of facing up and down one by one, the upper ends of the terminals extend into the corresponding terminal holes and are exposed out of the lower ends of the plug-in cavities, and SMT (surface mount technology) welding feet are formed when the lower ends of the terminals are exposed out of the bottom of the insulation body;

a protective cover made of plastic materials is detachably arranged on the insulating body; the protective cover comprises a top suction plate, a front side buckling plate and a rear side buckling plate, wherein the front side buckling plate and the rear side buckling plate are integrally connected to the lower end of the top suction plate and are arranged at a front-rear interval; the lower end of the top suction plate is also provided with a plurality of clamping protrusions which are arranged at intervals left and right, and the clamping protrusions are positioned between the front side buckling plate and the rear side buckling plate;

the protective cover is covered on the insulating body from top to bottom, the rear side face of the front side buckling plate is in tight fit contact with the front side face of the peripheral side wall, the front side face of the rear side buckling plate is in tight fit contact with the rear side face of the peripheral side wall, and the clamping protrusions are embedded into the corresponding inserting cavities and are in tight fit contact with the inner wall faces of the inserting cavities.

As a preferred scheme, the splicing cavity is provided with an upper conical cavity with a large upper part and a small lower part, the upper conical cavity and the lower conical cavity are arranged in a vertically adjacent and communicated mode, and a bending convex part is formed at the joint of the inner side walls of the upper conical cavity and the lower conical cavity.

As a preferable scheme, the clamping protrusion is a tapered part with a large upper part and a small lower part, and the outer side surface of the clamping protrusion is in tight fit contact with the inner wall surface of the upper tapered cavity to form tight fit contact between the clamping protrusion and the avoiding surface in the insertion cavity.

As a preferred scheme, the bottom of the clamping protrusion is provided with a disconnected groove extending upwards in the middle, so that the clamping protrusion is divided into a front side elastic arm and a rear side elastic arm, a front side clamping point is convexly arranged at the lower end of the front side elastic arm forward, a rear side clamping point is convexly arranged at the lower end of the rear side elastic arm backward, the front side clamping point is in close fit contact with the inner wall surface of the front side of the lower conical cavity, the rear side clamping point is in close fit contact with the inner wall surface of the rear side of the lower conical cavity, and the clamping protrusion and the inserting cavity are in close fit contact by utilizing the matching between the front side clamping point and the rear side clamping point and the conical cavity, so that the protective cover and the insulating body are more stable.

Preferably, the left and right side surfaces of the peripheral side wall extend outward to form symmetrical positioning columns, the positioning columns are exposed at the bottom end of the insulating body, and the design of the positioning columns is adopted, so that all lateral forces applied to the header connector are shared by the positioning columns on the left and right side surfaces of the peripheral side wall, and the reliability and the stability of the plug-in matching of the header connector and the printed circuit board are ensured.

As a preferred scheme, a plurality of terminals are arranged at intervals, the terminals are provided with a first contact part, a second contact part and a welding part, the first contact part, the second contact part and the welding part are connected through a connecting part, the second contact part inclines towards the first contact part, the end parts of the first contact part and the second contact part are mutually close, and the first contact part and the two second contact parts are connected with an external pin header in a clamping mode when the terminals are connected, so that the stability and the connection quality of terminal connection are improved.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme, it mainly is through visor and insulator's structural design and cooperation, the visor from last down the cover is located insulator, the trailing flank of front side buckled plate and the leading flank of all lateral walls close-fitting contact mutually, the leading flank of rear side buckled plate and the trailing flank of all lateral walls close-fitting contact mutually for the visor forms firm the connection with row female connector, and the visor uses as SMT automated production's auxiliary assembly, and enough the satisfaction is drawn the use, and the visor can not drop, simultaneously, because the protruding embedding of card is corresponding grafting intracavity and with the internal face close-fitting contact in grafting chamber, when the installation visor, can not contact with the terminal for insulator assembles behind the printed circuit board, and the visor is demolishd the back, ensures that the terminal is led positive more ideal.

What be the structure of this kind of visor is comparatively simple in addition, the visor is including top suction plate and integrative connection in front side buckled plate and the back side buckled plate that top suction plate lower extreme and interval arranged all around and a plurality of about interval arrange set up the protruding constitution of card between front side buckled plate and back side buckled plate, and easily injection moulding preparation compares the plastic part among the conventional art, and the degree of difficulty of moulding plastics of visor is lower a little relatively.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a top view of a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a first embodiment of the present invention;

fig. 3 is a cross-sectional view of a first embodiment of the present invention;

fig. 4 is a cross-sectional view of a second embodiment of the present invention.

The attached drawings indicate the following:

10. insulating body 101, bottom plate part

11. Positioning post 111, fixing part

112. Positioning part 12, terminal hole

13. Plug-in cavity 131 and upper conical cavity

132. Lower tapered cavity 133, bent boss

20. Terminal 21, first contact part

22. Second contact portion 23, welded portion

24. Connecting part

30. Protective cover 31, top suction plate

32. Front side snap-fit plate 33 and rear side snap-fit plate

34. Extended widening 321, guide ramp

35. Clamping protrusion 351 and breaking groove

352. Front elastic arm 353 and rear elastic arm

354. A front side click 355 and a back side click.

Detailed Description

Fig. 1 to 4 are schematic diagrams showing various embodiments of the present invention.

Fig. 1 to fig. 3 show a specific structure of a first embodiment of the present invention.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "upper", "lower", "front", "rear", "left", "right", etc., it indicates the orientation and the positional relationship shown in the drawings or when the device is normally worn and used, and only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element to be referred must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

An SMT bus bar connector comprises an insulating body 10, a plurality of terminals 20 and a protective cover 30.

The insulating body 10 has a bottom plate part 101, the periphery of the bottom plate part 101 integrally extends upwards to form a peripheral side wall, the left and right side surfaces of the peripheral side wall respectively extend outwards to form symmetrical positioning columns 11, the positioning columns 11 are exposed at the bottom end of the insulating body 10, and by the design of the positioning columns 11, therefore, the lateral force applied to the busbar connector is totally shared by the positioning columns 11 on the left and right side surfaces of the peripheral side wall, and the reliability and stability of the insertion and matching of the busbar connector and the printed circuit board are ensured. The circumference lateral wall comprises left side wall, right side wall, preceding lateral wall and back lateral wall, reference column 11 symmetry sets up on left side wall and right side wall. Preferably, each positioning column 11 includes a fixing portion 111 and a positioning portion 112, the fixing portion 111 is of a rectangular parallelepiped structure, the positioning portion 112 is of a cylindrical shape, the fixing portions 111 are integrally connected to the left and right side surfaces of the corresponding peripheral side walls, the top surface of the positioning portion 112 is fixedly connected to the bottom surface of the fixing portion 111, the structure is simple, and the firmness of the overall structure of the positioning column 11 is good.

The terminal holes 12 arranged at left and right intervals are formed between the peripheral side wall and the bottom plate part 101 in a surrounding mode, the inserting connection cavities 13 are arranged at left and right intervals at the upper ends of the terminal holes 12, each inserting connection cavity 13 is provided with an upper conical cavity 131 with a large upper part and a lower conical cavity 132 with a small upper part and a large lower part, the upper conical cavity 131 and the lower conical cavity 132 are arranged in a vertically adjacent penetrating mode, and a bending convex part 133 is formed at the joint of the inner side walls of the upper conical cavity 131 and the lower conical cavity 132, so that the terminal holes are ingenious in structural design and convenient for the tight-fit contact positioning of the clamping convex 35 and the inserting connection cavities 13.

The plug-in cavities 13 and the terminal holes 12 are communicated in a vertically opposite manner one by one, the upper ends of the terminals 20 extend into the corresponding terminal holes 12 and are exposed at the lower ends of the plug-in cavities 13, and the lower ends of the terminals 20 are exposed at the bottom of the insulating body 10 to form SMT welding feet; the plurality of terminals 20 are arranged in a crossed pitch manner, the terminals 20 are provided with first contact portions 21, second contact portions 22 and welding portions 23, the first contact portions 21, the second contact portions 22 and the welding portions 23 are connected through connecting portions 24, the first contact portions 21 and the second contact portions 22 are arranged in the terminal holes 12, and the welding portions 23 extend out of the insulating body 10. The second contact portion 22 inclines towards the first contact portion 21 and the end portions of the first contact portion 21 and the second contact portion 22 are mutually close, and when the terminal is connected, the terminal is connected with an external pin header through the first contact portion 21 and the two second contact portions 22, so that the connection stability and the connection quality of the terminal 20 are improved.

The protective cover 30 is detachably arranged on the insulating body 10, the protective cover 30 is made of plastic materials, the protective cover 30 comprises a top suction plate 31, a front side snap close plate 32 and a rear side snap close plate 33 which are integrally connected to the lower end of the top suction plate 31 and are arranged at a front-rear interval, the front side and the rear side of the top suction plate 31 exceed the front side and the rear side of the insulating body 10 to form an extending widened part 34, the upper end surface of the top suction plate 31 and the upper end surface of the extending widened part 34 are flush to form a suction surface, and the lower end rear side of the front side snap close plate 32 and the lower end front side of the rear side snap close plate 33 are provided with guide inclined surfaces 321; the lower end of the top suction plate 31 is also provided with a plurality of clamping protrusions 35 which are arranged at intervals left and right, and the clamping protrusions 35 are positioned between the front side buckling plate 32 and the rear side buckling plate 33; preferably, the locking protrusion 35 is a tapered portion with a large top and a small bottom, and the outer side surface of the locking protrusion 35 is in tight fit contact with the inner wall surface of the upper tapered cavity 131 to form tight fit contact between the locking protrusion 35 and the inner avoiding surface of the insertion cavity 13. When the protection cover 30 is installed, it will not contact with the terminal 20, so that after the insulation body 10 is assembled on the printed circuit board, and the protection cover 30 is removed, it is desirable to ensure the guiding of the terminal 20. The protective cover 30 is covered on the insulating body 10 from top to bottom, the rear side face of the front side buckling plate 32 is in tight fit contact with the front side face of the peripheral side wall, the front side face of the rear side buckling plate 33 is in tight fit contact with the rear side face of the peripheral side wall, and the clamping protrusions 35 are embedded in the corresponding plug-in cavities 13 and are in tight fit contact with the inner wall faces of the plug-in cavities 13.

Referring to fig. 4, a specific structure of a second embodiment of the present invention is shown, the specific structure of the second embodiment is basically the same as that of the first embodiment, and the main differences are as follows:

the bottom of card arch 35 upwards extends disconnected groove 351 in the middle to separate card arch 35 and be formed with front side elastic arm 352, rear side elastic arm 353, the front side lower extreme of front side elastic arm 352 is equipped with front side stuck point 354 to the protruding forward, the rear side lower extreme of rear side elastic arm 353 is equipped with rear side stuck point 355 to the protruding back, front side stuck point 354 and the front side internal face tight fit contact of lower tapered cavity 132, rear side stuck point 355 and the rear side internal face tight fit contact of lower tapered cavity 132 utilize the cooperation between front side stuck point 354 and rear side stuck point 355 and the tapered cavity, form card arch 35 and grafting cavity 13 tight fit contact, make between visor 30 and the insulator 10 more firm.

The utility model discloses a design is emphasized, and it is mainly through visor and insulator's structural design and cooperation, the visor is from last down to cover and is located insulator, the leading flank of leading flank and all lateral walls tight-fitting contact mutually, the leading flank of trailing flank and all lateral walls's trailing flank tight-fitting contact mutually, the protruding corresponding grafting intracavity of embedding of card and with the internal face tight-fitting contact in grafting chamber for the visor forms firm the connection with row female connector, and the visor uses as SMT automated production's auxiliary fitting, and enough the satisfaction is drawn the use, and the visor can not drop, simultaneously, because the protruding corresponding grafting intracavity of embedding of card and with the internal face tight-fitting contact in grafting chamber, when the installation visor, can not contact with the terminal for insulator assembles behind the printed circuit board, demolishs the visor, ensures that the terminal leads positive more ideal.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. An SMT bus connector comprises an insulating body and a plurality of terminals; the insulation body is provided with a bottom plate part, the periphery of the bottom plate part integrally extends upwards to form a peripheral side wall, a plurality of terminal holes which are arranged at intervals left and right are formed between the peripheral side wall and the bottom plate part, the upper ends of the terminal holes are arranged at intervals left and right and provided with plug-in cavities, the plug-in cavities and the terminal holes are communicated in a manner of being opposite to each other up and down one by one, the upper ends of the terminals extend into the corresponding terminal holes and are exposed at the lower ends of the plug-in cavities, and the lower ends of the terminals are exposed at the bottom of the insulation body to form SMT (surface mount technology) welding feet; the method is characterized in that:

2. An SMT bus connector according to claim 1, wherein: the plug-in cavity is provided with an upper conical cavity with a large upper part and a small lower part and a lower conical cavity with a small upper part and a large lower part, the upper conical cavity and the lower conical cavity are arranged in a vertically adjacent and communicated mode, and a bending convex part is formed at the joint of the inner side walls of the upper conical cavity and the lower conical cavity.

3. An SMT bus connector according to claim 2, wherein: the clamping protrusion is a conical part with a large upper part and a small lower part, and the outer side surface of the clamping protrusion is in tight fit contact with the inner wall surface of the upper conical cavity.

4. An SMT bus connector according to claim 2, wherein: the bottom of the clamping protrusion extends upwards from the middle to form a front side elastic arm and a rear side elastic arm in a separating mode, a front side clamping point is arranged at the lower end of the front side elastic arm in a forward protruding mode, a rear side clamping point is arranged at the lower end of the rear side elastic arm in a backward protruding mode, the front side clamping point is in close fit contact with the inner wall face of the front side of the lower conical cavity, and the rear side clamping point is in close fit contact with the inner wall face of the rear side of the lower conical cavity.

5. An SMT bus connector according to claim 1, wherein: the left side surface and the right side surface of the peripheral side wall respectively extend outwards to form symmetrical positioning columns, and the positioning columns are exposed at the bottom end of the insulating body.

6. An SMT bus connector according to claim 1, wherein: the terminal is provided with a first contact part, a second contact part and a welding part, the first contact part, the second contact part and the welding part are connected through a connecting part, the second contact part inclines towards the first contact part, and the end parts of the first contact part and the second contact part are mutually closed.