TWI594523B - Electrical connections and terminals - Google Patents

Description

Electrical connection device and terminal

The present invention relates to an electrical connection device, and more particularly to an electrical connection device having two mating directions.

Generally, there may be two docking connectors in the opposite direction. For example, as disclosed in Chinese Patent No. CN202454786U, a first insulative housing is provided with a plurality of terminal slots, and each terminal slot has two openings respectively in the horizontal and vertical directions. A clip arm type terminal is disposed corresponding to each terminal slot, and a second insulating body is provided with a plurality of chip type terminals corresponding to the clip arm type terminals. A first guiding slot in the same direction as the horizontal opening of the terminal slot and a second guiding slot in the same direction as the vertical opening are disposed on the two sides of the first insulating body, and a positioning protrusion is respectively disposed on two sides of the second insulating body. When the first insulative housing and the second insulative housing are butted in a horizontal direction, the positioning lug is accessed by the first guiding slot, and the chip terminal is inserted into the terminal slot by the horizontal opening and the clamping arm type terminal; when the first insulative body and the first insulative body When the two insulating bodies are butted in the vertical direction, the positioning protrusions are accessed by the second guiding grooves, and the chip terminals are inserted into the terminal slots by the vertical openings and the clamping arm type terminals are butted.

Since the chip terminal will enter the end from the horizontal opening or the vertical opening The sub-slot is butted to the clamp-type terminal, that is, the chip-type terminal is butted from the clamp-arm type terminal in two directions. In order to prevent the chip-type terminal from colliding with the clamp-arm type terminal, a spherical surface is provided at the contact portion of the clamp-arm type terminal. The protrusions are in contact with the chip terminals. However, the convex surface of the spherical surface is usually stamped on the metal sheet to partially bend and bulge the metal piece, and the inner side is hollow, and it is easily deformed by the multiple deformation and is damaged. Therefore, such a docking connector cannot withstand a high number of insertions and removals, for example, more than 10,000 times.

Accordingly, it is an object of the present invention to provide a pluggable electrical connection device.

Another object of the present invention is to provide a terminal that can increase the weld area to make the weld more stable.

Therefore, in some implementations, the electrical connection device of the present invention comprises: a first connector and a second connector. The first connector includes an insulative housing and a plurality of chip terminals. The insulative housing has an elongated base portion and two ears respectively extending perpendicularly from opposite ends of the base portion and spaced apart from each other, wherein an inner wall surface of an ear portion is provided with a first guiding slot perpendicular to the base portion and a parallel portion The second guide groove of the base. The chip terminals are spaced apart from each other along the longitudinal direction of the base portion and located between the two ears, and each of the chip terminals has a contact extending from the base and located between the ear portions unit. The second connector includes an insulative housing and a plurality of resilient terminals. The insulative housing has a pair of connecting portions and a convex rail. The abutting portion is correspondingly disposed between the inner wall surfaces of the ear portions of the first connector, and has two long sides respectively on both sides in the longitudinal direction, and two One at each end and connected to the two long sides a short side surface, a top surface connecting the two long side surfaces and the two short side surfaces, and a plurality of terminal slots spaced apart from each other along a longitudinal direction of the mating portion, each terminal slot having a docking on the top surface The opening and a side opening on one of the long sides protrude from one of the short sides and extend perpendicularly to the top surface to engage the first and second guiding grooves. The elastic terminals are disposed on the insulating housing and are respectively received in the terminal slots. Each of the elastic terminals has a contact portion located in the mating portion and a guiding portion extending from the contact portion toward the top surface. When the first connector and the second connector are butted in a first direction, the first guiding slot of the first connector cooperates with the convex rail of the second connector to guide the sheet The contact portions of the terminals respectively enter the corresponding terminal slots by the mating openings of the terminal slots, and can first contact the guiding portions of the corresponding elastic terminals and then contact the contact portions thereof. When the first connector and the second connector are connected in a second direction, the second guiding slot of the first connector cooperates with the convex rail of the second connector to guide the sheet The contact portions of the terminals respectively enter the corresponding terminal slots by the mating openings of the terminal slots, and can first contact the guiding portions of the corresponding elastic terminals and then contact the contact portions thereof.

In some embodiments, the convex rail is adjacent to the long side of the side opening of the terminal slot, so that the abutting portion cannot enter between the two ears with the long side to avoid the chip terminals. The terminal slots are accessed by the side openings.

In some embodiments, the inner wall surface of the other ear portion of the insulative housing is also provided with a first guiding slot perpendicular to the base and a second guiding slot parallel to the base, the first guiding slot positions of the two ears Corresponding to and corresponding to the positions of the second guiding grooves of the two ears; the insulating housing also has a convex side protruding from the other short side The convex rail of the surface, and the positions of the two convex rails correspond.

In some embodiments, the two convex rails are adjacent to the long side of the side opening of the terminal slots, so that the abutting portion cannot enter between the two ears with the long side provided with a side opening to avoid The chip terminals enter the terminal slots from the side openings.

In some embodiments, each of the elastic terminals has a plurality of elastic clip arms disposed opposite to each other and extending toward the top surface. The end portions of the elastic clip arms on opposite sides are bent toward the inner side in the extending direction thereof. The contact portion and the guiding portion are formed by bending outwardly, and the contact portion of the elastic terminal is for clamping the contact portion of the corresponding chip terminal.

In some embodiments, each of the elastic terminals further has a fixing portion and two soldering portions, the fixing portion has two main body segments spaced apart from each other and a connecting portion connecting the two main body segments, the set of elastic clips The arms extend from the two body segments toward the top surface, and the two solder portions extend from the two body segments away from the top surface and are bent to be relatively close to each other, and the two solder portions are misaligned and arranged side by side.

In some embodiments, the first connector further includes two fixing members respectively disposed on the two ears and protruding through the base.

In some embodiments, the two fasteners are constructed identically to the chip terminals.

Therefore, in some embodiments, the terminal of the present invention is integrally formed from a metal piece, and includes a fixing portion, a set of elastic clamping arms and two soldering portions. The fixing portion has two body segments that are spaced apart from each other and a connecting segment that connects the two body segments. The set of elastic clamping arms are respectively composed of the two main body segments One side extends. The two soldering portions extend from the other side of the two main body segments in a direction opposite to the set of elastic clamping arms, and are bent to be relatively close to each other and extend straight, and the two soldering portions are misaligned and arranged side by side.

In some embodiments, the end portions of the elastic clamping arms on opposite sides are bent toward the opposite inner side in the extending direction thereof and then extended to the opposite outer side to form a contact portion and a guiding portion.

The present invention has at least the following effects: by guiding the first connector and the second connector in the first guide slot and the second guide slot of the first connector to guide the first connector to the second connector The first connector and the second connector can make the chip terminal of the first connector enter the corresponding terminal slot from the mating opening of the terminal slot regardless of the first direction or the second direction to avoid damage of the elastic terminal. Further, the elastic terminal can be formed into a single-direction guide portion by bending, and is not only easy to manufacture but also has a strong structural strength, and can withstand a high number of insertion and removal. In addition, the elastic terminals have two solder tab portions that are misaligned side by side, which can increase the soldering area and make the soldering more stable.

100‧‧‧First connector

1‧‧‧Insulating body

11‧‧‧ base

12‧‧ Ears

13‧‧‧First channel

14‧‧‧Second guiding channel

2‧‧‧chip terminal

21‧‧‧ Holding Department

22‧‧‧Contacts

23‧‧‧ solder feet

200‧‧‧Second connector

3‧‧‧Insulation shell

31‧‧‧Base

32‧‧‧Docking Department

321‧‧‧ long side

322‧‧‧Short side

323‧‧‧ top surface

324‧‧‧Terminal slot

324a‧‧‧ docking opening

324b‧‧‧Side opening

33‧‧‧ convex rail

4‧‧‧Flexible terminals

41‧‧‧Contacts

42‧‧‧Guidance

43‧‧‧ Fixed Department

431‧‧‧ main body

432‧‧‧Connection section

44‧‧‧Flexible clamp arm

45‧‧‧welding department

5‧‧‧Fixed parts

91‧‧‧First board

92‧‧‧Second circuit board

The other features and advantages of the present invention will be apparent from the detailed description of the embodiments of the accompanying drawings. FIG. 1 is a perspective exploded view illustrating a first embodiment of the electrical connection device of the present invention, wherein A connector and a second connector are in an unbutted state; FIG. 2 is an exploded perspective view showing the components of the first connector of the first embodiment and their assembly relationship with a first circuit board; Is another angle view of Figure 2; 4 is an exploded perspective view showing the components of the second connector of the first embodiment and its assembly relationship with a second circuit board; FIG. 5 is another perspective view of FIG. 4; FIG. 7 is a side view illustrating the dislocation of the two solder tab portions of the elastic terminal; FIG. 8 is an exploded perspective view illustrating the first embodiment The first connector and the second connector are in abutting relationship in a first direction; FIG. 9 is a perspective view illustrating the combined state of the first connector and the second connector of the first embodiment being docked in the first direction FIG. 10 is an exploded perspective view showing the first connector and the second connector in a second direction; FIG. 11 is a perspective view showing the first connection of the first embodiment; FIG. 12 is an exploded perspective view showing the relationship between the first connector and the second connector in an erroneous docking; FIG. 13 is a perspective view illustrating the present invention. a second embodiment of an electrical connection device Connector; FIG. 14 is a perspective exploded diagram illustrating the assembly of the first member and the connector according to the second embodiment; and FIG. 15 is a view similar to FIG. 14 a.

Before the explanation, it should be noted that in the following description, Similar elements are denoted by the same reference numerals.

Referring to FIG. 1, a first embodiment of an electrical connection device of the present invention includes a first connector 100 and a second connector 200. In this embodiment, the first connector 100 is disposed on a first circuit board 91, and the second connector 200 is disposed on a second circuit board 92.

Referring to FIGS. 1 to 3 , the first connector 100 includes an insulative housing 1 , a plurality of chip terminals 2 , and two fixing members 5 . The insulative housing 1 has an elongated base portion 11 and two ears 12 respectively projecting perpendicularly from opposite ends of the base portion 11 and spaced apart from each other. In this embodiment, the inner wall surface of each of the ears 12 is provided with a first guiding slot 13 perpendicular to the base portion 11 and a second guiding slot 14 parallel to the base portion 11. The first guiding slot 13 of the two ears 12 The positions correspond to each other and the positions of the second guide grooves 14 of the two ears 12 correspond. In this embodiment, the first guiding slot 13 and the second guiding slot 14 are disposed in an L shape, the first guiding slot 13 is adjacent to a side edge of the ear portion 12, and the second guiding slot 14 is adjacent to the base portion 11 . In another embodiment, only one of the ear portions 12 is provided with the first guiding groove 13 and the second guiding groove 14 . The sheet terminals 2 are provided at the base portion 11 at intervals in the longitudinal direction of the base portion 11 and are located between the ears 2 . Each of the chip terminals 2 has a holding portion 21 fixed in the base, a contact portion 22 extending from the one end of the holding portion 21 and located between the two ears 12, and two mutual phases The base portion 11 is extended from the other end of the holding portion 21 to be soldered to the solder fillet 23 of the first circuit board 91. In this embodiment, the two fixing members 5 are respectively disposed at two ends of the base portion 11 to weld and fix the insulative housing 1 to the first circuit board 91.

Referring to FIG. 1 , FIG. 4 and FIG. 5 , the second connector 200 includes An insulating shell 3, a plurality of elastic terminals 4 and two fixing members 5. In the embodiment, the insulating case 3 has a base 31, a pair of connecting portions 32 and two protruding rails 33. The two fixing members 5 are respectively disposed on the two ends of the base 31 to be fixed to the second circuit board 92 by the two fixing members 5 . The abutting portion 32 is protruded from the base 31 to be received between the inner wall surfaces of the two ears 12 of the first connector 100, and has two long sides 321 respectively on both sides of the longitudinal direction. Two short sides 322 respectively at both ends and connecting the two long sides 321 , a top surface 323 connecting the two long sides 321 and the two short sides 322 , and a plurality of longitudinal directions along the longitudinal direction of the abutting portion 32 Terminal slots 324 are provided at intervals. Each terminal slot 324 has a mating opening 324a on the top surface 323 and a side opening 324b on one of the long sides 321 . The two convex rails 33 are respectively protruded from the two short side surfaces 322 and extend in the direction perpendicular to the top surface 323 and the positions of the two convex rails 33 are corresponding to respectively fit the first guiding slots 13 of the two ear portions 12 and The second guide groove 14. That is, each of the convex rails 33 cooperates with the first guiding groove 13 and the second guiding groove 14 of the corresponding ear portion 12, and if only one of the ear portions 12 is provided with the first guiding groove 13 and the second guiding groove 14 The insulating case 3 is only provided with a convex rail 33 on the short side surface 322 corresponding to the ear portion 12. In this embodiment, the two convex rails 33 are adjacent to the long side surface 321 of the side opening 324b of the terminal groove 324, that is, the two convex rails 33 are respectively adjacent to the two short side surfaces 322 and are provided with side openings. The junction of the long side 321 of 324b.

The elastic terminals 4 are disposed on the insulating case 3 and are respectively received in the terminal slots 324. Each of the elastic terminals 4 has a contact portion 41 located in the abutting portion 32 and a direction extending from the contact portion 41 toward the top surface 323 Guide portion 42. Referring to FIG. 6 and FIG. 7 , in the embodiment, each elastic terminal 4 has a fixing portion 43 , a pair of oppositely disposed elastic clamping arms 44 and two soldering portions 45 . The fixing portion 43 has two body segments 431 spaced apart from each other and a connecting portion 432 connecting the two body segments 431. The set of elastic clip arms 44 extend from the two body segments 431 toward the top surface 323, and the end portions of the elastic clip arms 44 on opposite sides are bent toward the opposite sides in the extending direction and then extended to the opposite outer side to form an extension. The contact portion 41 and the guiding portion 42 are for holding the contact portion 22 of the corresponding chip terminal 2 . The two soldering portions 45 extend from the two main body segments 431 away from the top surface 323 and are bent relatively close to each other for straight soldering to the second circuit board 92, and the two soldering portions 45 are misaligned and arranged side by side. That is, the set of elastic clip arms 44 respectively extend from one side of the two body segments 431, and the two solder tab portions 45 respectively extend from the other side of the two body segments 431 toward the opposite set of the elastic clip arms 44 and The first bending is relatively close to the straight line, and the two soldering portions 45 are misaligned side by side. As shown in FIG. 6 and FIG. 7, the left and right solder tab portions 45 are vertically displaced. As shown in the side view direction of FIG. 7, the two solder tab portions 45 are partially overlapped on the upper and lower portions, thereby increasing the soldering area and making the soldering more. For stability. In this embodiment, although the elastic terminal 4 has a plurality of elastic clamping arms 44 and two on the left and the right, in other embodiments, the elastic clamping arms 44 may also have one left and right, or the elastic terminal 4 may have only one elastic arm. As long as the guiding portion 42 and the contact portion 41 can be formed, it is not limited to the embodiment.

Referring to FIG. 8 and FIG. 9 , when the first connector 100 and the second connector 200 are docked in a first direction, the first guiding slot 13 of the first connector 100 and the second connector 200 are The convex rail 33 cooperates with the guide, The contact portions 22 of the chip terminals 2 are respectively brought into the corresponding terminal slots 324 by the mating openings 324a of the terminal slots 324, and can be contacted with the guiding portions 42 of the corresponding elastic terminals 4 (see FIG. 4) and then contacted. Part 41.

Referring to FIG. 10 and FIG. 11 , when the first connector 100 and the second connector 200 are docked in a second direction, the second guiding slot 14 of the first connector 100 and the second connector 200 are convex. The rails 33 are cooperatively guided so that the contact portions 22 of the chip terminals 2 respectively enter the corresponding terminal slots 324 from the mating openings 324a of the terminal slots 324, and can first contact the corresponding elastic terminals 4 (see FIG. 4). The lead portion 42 is in contact with its contact portion 41.

That is, regardless of whether the first connector 100 and the second connector 200 are butted by the first direction or the second direction, the contact portion 22 of the chip terminal 2 of the first connector 100 is the docking opening 324a from the terminal slot 324. After entering the corresponding terminal slot 324, the guiding portion 42 corresponding to the corresponding elastic terminal 4 can be contacted first and then contacted with the contact portion 41, so that the lateral direction of the chip terminal 2 from the elastic terminal 4 can be avoided (the guiding portion 42 is not guided). The elastic terminal 4 is struck, thereby preventing the elastic terminal 4 from being damaged. Further, the elastic terminal 4 can be formed into a single-direction guide portion 42 by bending, and is not only easy to manufacture but also has a strong structural strength, and can withstand a high number of insertion and removal.

Referring to FIG. 12, in the embodiment, the two side rails 33 are adjacent to the long side surface 321 of the side opening 324b of the terminal slot 324, so that the abutting portion 32 cannot be provided with the long side surface 321 of the side opening 324b. The two ear portions 12 are inserted to prevent the contact portions 22 of the chip terminals 2 from entering the terminal slots 324 from the side openings 324b. As shown in FIG. 12, since the two convex rails 33 respectively protrude from the two short side surfaces 322 and are provided with side openings in the adjacent ones The long side 321 of the mouth 324b corresponds to an increase in the length of the long side 321 provided with the side opening 324b such that the overall length thereof is greater than the distance between the inner wall faces of the ears 12 of the first connector 100, thus When the user docks the first connector 100 with the second connector 200 in such a direction, the two protruding rails 33 abut against the two ears 12, so that the contact portion 22 of the chip terminal 2 cannot enter the terminal slot from the side opening 324b. 324 and crashed the elastic terminal 4 to achieve the foolproof function. Similarly, if only the convex rails 33 are provided on one side, the long side surfaces 321 provided on the side openings 324b adjacent to the terminal grooves 324 are provided, and the same principle can also avoid the chip terminals 2 The contact portions 22 enter the terminal slots 324 from the side openings 324b.

Referring to FIG. 13 to FIG. 15, the second embodiment of the electrical connecting device of the present invention is substantially the same as the first embodiment, but in the second embodiment, the configuration of the two fixing members 5 of the first connector 100 and the same The terminals 2 are identical, and two fixing members 5 are respectively disposed on the two ear portions 12 and protrude through the base portion 11. The structural strength of the ear portion 12 can be enhanced by providing the fixing member 5 in the ear portion 12. Moreover, the fixing member 5 of the present embodiment has the same configuration as the sheet-like terminal 2, and can be easily manufactured. In other embodiments, the structure of the fixing member 5 may be different from the chip terminal 2, as long as it can be disposed on the two ear portions 12 and protrudes from the base portion 11 to be soldered to the first circuit board 91. The example is limited.

In summary, the first connector 100 and the second connector are guided by the first guiding slot 13 and the second guiding slot 14 of the first connector 100 in cooperation with the protruding rail 33 of the second connector 200. 200 docking, the first connector 100 and the second connector 200 can be docked by the first direction or the second direction The contact portion 22 of the chip terminal 2 of the first connector 100 can be made to enter the corresponding terminal slot 324 from the mating opening 324a of the terminal slot 324 to prevent the elastic terminal 4 from being damaged. Further, the elastic terminal 4 can be formed into a single-direction guide portion 42 by bending, and is not only easy to manufacture but also has a strong structural strength, and can withstand a high number of insertion and removal. Further, the elastic terminal 4 has two solder tab portions 45 which are displaced side by side, which can increase the soldering area and make the soldering more stable.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

100‧‧‧First connector

1‧‧‧Insulating body

11‧‧‧ base

12‧‧ Ears

13‧‧‧First channel

14‧‧‧Second guiding channel

2‧‧‧chip terminal

22‧‧‧Contacts

200‧‧‧Second connector

3‧‧‧Insulation shell

32‧‧‧Docking Department

321‧‧‧ long side

322‧‧‧Short side

323‧‧‧ top surface

324‧‧‧Terminal slot

324a‧‧‧ docking opening

324b‧‧‧Side opening

33‧‧‧ convex rail

91‧‧‧First board

92‧‧‧Second circuit board

Claims (10)

An electrical connecting device comprising: a first connector comprising an insulative body having an elongated base and two ears respectively extending perpendicularly from opposite ends of the base and spaced apart from each other, wherein an inner portion of the ear portion The wall surface is provided with a first guiding groove perpendicular to the base portion and a second guiding groove parallel to the base portion, and a plurality of chip terminals disposed at the base portion and spaced apart from each other along the longitudinal direction of the base portion And each of the chip terminals has a contact portion extending from the base and located between the ear portions; and a second connector including an insulating case having a pair of joint portions and a convex rail, the butt portion Correspondingly disposed between the inner wall surfaces of the ear portions of the first connector, and having two long sides respectively on both sides in the longitudinal direction, two short sides respectively located at the two ends and connecting the two long sides, a top surface connecting the two long sides and the two short sides, and a plurality of terminal slots spaced apart from each other along a longitudinal direction of the mating portion, each of the terminal slots having a mating opening at the top surface and a One of the long sides of the side opening, the The rail protrudes from one of the short sides and extends perpendicularly to the top surface to cooperate with the first and second guiding slots, and a plurality of elastic terminals are disposed on the insulating housing and are respectively received in the terminal slots, each of The elastic terminal has a contact portion located in the abutting portion and a guiding portion extending from the contact portion toward the top surface When the first connector and the second connector are docked in a first direction, the first guiding slot of the first connector is matched with the convex rail of the second connector to guide the pieces The contact portions of the terminal terminals respectively enter the corresponding terminal slots through the mating openings of the terminal slots, and can first contact the guiding portions of the corresponding elastic terminals and then contact the contact portions thereof; the first connector and the second connector are When the two sides are butted, the second guiding groove of the first connector is matched with the convex rail of the second connector, so that the contact portions of the chip terminals are respectively entered by the docking openings of the terminal slots. The corresponding terminal groove can contact the guiding portion corresponding to the elastic terminal and then contact the contact portion. The electrical connection device of claim 1, wherein the convex rail is adjacent to the long side of the side opening of the terminal slot, so that the abutting portion cannot enter between the two ears with the long side to avoid The chip terminals enter the terminal slots from the side openings. The electrical connection device of claim 1, wherein the inner wall surface of the other ear portion of the insulative housing is also provided with a first guiding slot perpendicular to the base portion and a second guiding slot parallel to the base portion, the two ear portions The first guiding groove corresponds to the position of the second guiding groove of the two ears; the insulating housing further has a convex rail protruding from the other short side, and the positions of the two protruding rails correspond to each other. The electrical connection device of claim 3, wherein the two convex tracks are adjacent to the long side of the side opening of the terminal slots, so that the abutting portion cannot enter the two ears with the long side provided with a side opening Between the portions, the chip terminals are prevented from entering the terminal slots from the side openings. The electrical connection device of claim 1, wherein each of the elastic terminals has a plurality of elastic clamping arms disposed opposite to each other and extending toward the top surface, and the end portions of the elastic clamping arms on opposite sides are advanced along the extending direction thereof The contact portion and the guiding portion are formed by bending the inner side and then extending outwardly from the outer side, and the contact portion of the elastic terminal is for clamping the contact portion of the corresponding chip terminal. The electrical connection device of claim 5, wherein each of the elastic terminals further has a fixing portion and two soldering portions, the fixing portion having two body segments spaced apart from each other and a connecting portion connecting the two body segments The two sets of elastic clip arms respectively extend from the two main body sections toward the top surface, and the two soldering piece portions respectively extend from the two main body sections away from the top surface direction and are bent to be relatively close and then extend straight, and the two soldering portions The pieces are misplaced side by side. The electrical connection device according to any one of claims 1 to 6, wherein the first connector further comprises two fixing members respectively disposed on the two ear portions and extending through the base portion. The electrical connection device of claim 7, wherein the two fixing members have the same configuration as the chip terminals. A terminal integrally formed from a metal piece, comprising: a fixing portion having two body segments spaced apart from each other and a connecting portion connecting the two body segments; a set of elastic clamping arms respectively formed by one of the two body segments And the two soldering portions are respectively extended from the other side of the two main body segments toward the opposite of the set of elastic clamping arms and are bent to be relatively close to each other and extend straight, and the two soldering portions are misaligned side by side. The terminal of claim 9, wherein the end portions of the elastic clamping arms on opposite sides are bent toward the opposite inner side in the extending direction thereof and then extended to the opposite outer side to form a contact portion and a guiding portion.