CN205069943U

CN205069943U - Miniature connector structure convenient to welding maintenance

Info

Publication number: CN205069943U
Application number: CN201520810500.1U
Authority: CN
Inventors: 黄操
Original assignee: Dongguan Eben Electronics Co Ltd
Current assignee: Dongguan Eben Electronics Co Ltd
Priority date: 2015-10-20
Filing date: 2015-10-20
Publication date: 2016-03-02
Anticipated expiration: 2025-10-20

Abstract

The utility model discloses a miniature connector structure convenient to welding maintenance, including bench insulator, the two rows of terminals and metal casing, the grafting chamber has been seted up to this bench insulator front end, and two row aforementioned terminals stretch into the upper and lower side of grafting intracavity respectively, and every terminal all has a contact site, the contact site of upper and lower row of terminal protruding establishing in opposite directions about each other, aforementioned bench insulator back end position is concave to be equipped with a plurality of welding recesses, and aforementioned whole or partial terminal has a weld part that stretches into in respective welding recess, and the top surface of this weld part is the concave location cavity that prevents the sealing off that is equipped with down, by this, structural design through weld part, welding recess and mutually supporting, it has obtained great weld part under the prerequisite of ensureing the small and exquisite volume of miniature connector, the bonding wire operation be convenient for has improved welding stability, its weld part design quantity is decided with the concrete link of cable by the connector, the welding detect and follow -up maintenance all more convenient.

Description

Be convenient to the mini-connector structure welding maintenance

Technical field

The utility model relates to field of connectors technology, refers in particular to a kind of mini-connector structure being convenient to weld maintenance.

Background technology

Along with the microminiaturization of electronic product, lightening development, its connector applied is also corresponding becomes more and smaller and more exquisite, in prior art, its connector tail end is transferred by circuit board, such as, on, the Type-C connector of each 12PIN terminal of lower row, circuit board one end needs to weld with 24 of connector tail end weld parts usually, that the other end of circuit board then has 9 pads to weld with external cable usually, its welding position is many, welding and welding detect and all bother, especially, its connector Total Product Volume design is limited, cause the space shared by each welding position extremely little, easily error is there is when welding, in assembling, transport and use procedure in, all easily vibrated and occur loosen, de-welding phenomena, cause the loose contact of welding position, follow-up maintenance activity is also inconvenient.

Therefore, need to work out a kind of new technical scheme and solve the problems referred to above.

Utility model content

In view of this, the utility model is for the disappearance of prior art existence, its main purpose is to provide a kind of mini-connector structure being convenient to weld maintenance, it is under the prerequisite guaranteeing the small and exquisite volume of micro connector, obtain larger weld part, be convenient to wire-bonding operations, improve welding stability, its weld part design quantity is determined by connector and the concrete link of cable, welding detect and subsequent maintenance all more convenient.

For achieving the above object, the utility model adopts following technical scheme:

Be convenient to the mini-connector structure welding maintenance, include two row's terminals in insulating base of insulating base, produced by insert molding and be coated on the metal shell of insulating base outside; Wherein, this insulating base front end offers grafting chamber, and aforementioned two row's terminals stretch into upper and lower side in grafting chamber respectively, and each terminal all has contact site, self projection in opposite directions of the contact site of upper and lower row's terminal; Aforementioned dielectric seat back segment position space type is arranged with some welding grooves, and aforementioned all or part of terminal has the weld part stretched in respective welding groove, and the end face of this weld part is down arranged with the located cavity preventing sealing-off.

As a kind of preferred version, described located cavity is that stamping-out is out of shape the structure formed, and its bottom surface in weld part is corresponding is formed with protuberance, and this protuberance bottom surface is supported on welding groove inner bottom surface.

As a kind of preferred version, be formed with the guide-localization groove being beneficial to the regular location of bonding wire between each welding groove and insulating base rear end face, the bottom surface of described guide-localization groove is inclined-plane or the arcwall face of gradually low design after going to.

As a kind of preferred version, described metal shell front end has extended to form contact flat spring towards grafting chamber toward inner bending, and the free end of this contact flat spring has the contact projection of projection in grafting chamber; Aforementioned grafting cavity wall face corresponding female be provided with for contact flat spring distortion step down dodge cavity.

The utility model compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution, its mainly by weld part, welding groove structural design and cooperatively interact, it obtains larger weld part under the prerequisite guaranteeing the small and exquisite volume of micro connector, be convenient to wire-bonding operations, improve welding stability, its weld part design quantity is determined by connector and the concrete link of cable, welding detect and subsequent maintenance all more convenient.

For more clearly setting forth architectural feature of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.

Accompanying drawing explanation

Fig. 1 is the decomposition texture diagram of the embodiment of the utility model;

Fig. 2 is the front view of the embodiment of the utility model;

Fig. 3 is the vertical view (not showing back cover) of the embodiment of the utility model;

Fig. 4 is the partial enlargement diagram at A place in Fig. 1;

Fig. 5 is partial cross section's configuration diagram at position shown in Fig. 4;

Fig. 6 is that the another kind at position shown in Fig. 4 implements configuration diagram;

Fig. 7 is partial cross section's configuration diagram at position shown in Fig. 6;

Fig. 8 is the leading portion partial cross section configuration diagram of the embodiment of the utility model.

Accompanying drawing identifier declaration:

10, insulating base 11, grafting chamber

12, insulating base back segment position 13, welding groove

14, guide-localization groove 15, dodge cavity

20, terminal 21, contact site

22, weld part 23, located cavity

24, protuberance 30, metal shell

31, contact flat spring 32, contact projection

40, back cover.

Embodiment

Please refer to shown in Fig. 1 to Fig. 8, that show the concrete structure of the embodiment of the utility model, it includes insulating base (10), produced by insert molding two metal shells (30) arranged terminal (20) and be coated on insulating base (10) outside in insulating base (10), explains for the Type-C connector of each 12PIN terminal of upper and lower row herein.

Wherein, this insulating base (10) front end offers grafting chamber (11), aforementioned two rows' terminal (20) stretch into upper and lower side in grafting chamber (11) respectively, and each terminal all has contact site (21), self projection in opposite directions of contact site (21) of upper and lower row's terminal (20).

This insulating base (10) back segment position (12) space type is arranged with some welding grooves (13), aforementioned all or part of terminal has the weld part (22) stretched in respective welding groove (13), and the end face of this weld part (22) is down arranged with the located cavity (23) preventing sealing-off; In the present embodiment, described located cavity (23) is out of shape the structure formed for stamping-out, and its bottom surface in weld part (22) is corresponding is formed with protuberance (24), and this protuberance (24) bottom surface is supported on welding groove (13) inner bottom surface;

During welding, bonding wire end is stretched in located cavity (23), solder is piled up in located cavity (23) clinkering, bonding wire is firmly connected on weld part (22), effectively prevent from loosening, the generation of sealing-off phenomenon, and in conventional art, normally bonding wire end being directly welded in weld part surface, the area that its contact is fixing and angle are all inadequate, cause very easily getting loose between bonding wire end and weld part; Back cover (40) is had at the rear end detachable assembled of metal shell (30), this back cover (40) designs shorter than conventional back cover, connector Total Product volume more, especially length obtains shortening, open back cover (40) when subsequent maintenance, its welding position quantity simplifies, and welding position is larger, very clear, convenient operation.

Comparison diagram 4 and Fig. 6 known, guide-localization groove (14) is formed between welding groove (13) shown in Fig. 6 and insulating base (10) rear end face, the bottom surface of described guide-localization groove (14) is in the inclined-plane of gradually low design or arcwall face after going to, and the purpose of design of its guide-localization groove (14) is bonding wire regular location better.

And, as shown in Figure 1, Figure 2 and shown in Fig. 8, described metal shell (30) front end has extended to form contact flat spring (31) towards grafting chamber (11) toward inner bending, and the free end of this contact flat spring (31) has towards the contact projection (32) of grafting chamber (11) interior projection; Aforementioned grafting chamber (11) internal face corresponding female be provided with for contact flat spring (31) distortion step down dodge cavity (15).

Design focal point of the present utility model is, its mainly by weld part, welding groove structural design and cooperatively interact, it is under the prerequisite guaranteeing the small and exquisite volume of micro connector, obtain larger weld part, be convenient to wire-bonding operations, improve welding stability, its weld part design quantity is determined by connector and the concrete link of cable, welding detect and subsequent maintenance all more convenient.

The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, therefore every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.

Claims

1. be convenient to the mini-connector structure welding maintenance, it is characterized in that: include two rows' terminal (20) in insulating base (10) of insulating base (10), produced by insert molding and be coated on the outside metal shell (30) of insulating base (10); Wherein, this insulating base (10) front end offers grafting chamber (11), aforementioned two rows' terminal (20) stretch into upper and lower side in grafting chamber (11) respectively, and each terminal all has contact site (21), self projection in opposite directions of contact site (21) of upper and lower row's terminal (20); Aforementioned dielectric seat (10) back segment position space type is arranged with some welding grooves (13), aforementioned all or part of terminal has the weld part (22) stretched in respective welding groove (13), and the end face of this weld part (22) is down arranged with the located cavity (23) preventing sealing-off.

2. according to claim 1 being convenient to welds the mini-connector structure keeped in repair, it is characterized in that: described located cavity (23) is out of shape the structure formed for stamping-out, its bottom surface in weld part (22) is corresponding is formed with protuberance (24), and this protuberance (24) bottom surface is supported on welding groove (13) inner bottom surface.

3. according to claim 1 being convenient to welds the mini-connector structure keeped in repair, it is characterized in that: be formed with the guide-localization groove (14) being beneficial to the regular location of bonding wire between each welding groove (13) and insulating base (10) rear end face, the bottom surface of described guide-localization groove (14) is inclined-plane or the arcwall face of gradually low design after going to.

4. according to claim 1 being convenient to welds the mini-connector structure keeped in repair, it is characterized in that: described metal shell (30) front end has extended to form contact flat spring (31) towards grafting chamber (11) toward inner bending, and the free end of this contact flat spring (31) has towards the contact projection (32) of grafting chamber (11) interior projection; Aforementioned grafting chamber (11) internal face corresponding female be provided with for contact flat spring (31) distortion step down dodge cavity (15).