CN201360057Y

CN201360057Y - Electric connector

Info

Publication number: CN201360057Y
Application number: CNU2008201896539U
Authority: CN
Inventors: 何华
Original assignee: Shanghai Moshi Connector Co Ltd; Molex LLC
Current assignee: Shanghai Moshi Connector Co Ltd; Molex LLC
Priority date: 2008-12-29
Filing date: 2008-12-29
Publication date: 2009-12-09
Anticipated expiration: 2018-12-29

Abstract

The utility model relates to an electric connector, which comprises an insulator, a plurality of terminals arranged on the insulator and a shielding shell which shields the insulator; folding pieces respectively extend backwards from both side plates of the shielding shell; each folding piece is provided with a first bent section and a second bent section; the insulator comprises a matrix part; the insulator is provided with first inclined sections corresponding to the first bent sections on the rear ends of both sides of the matrix part; the first bent section is arranged between a first position and a second position; at the first position, the first bent section is tightly adhered with the first inclined section; and at the second position, the first bent section extends from the rear end of the side plate and is in parallel with the side plate. The electric connector can improve the problem that the folding pieces are easy to expand externally to make the welding pins of the shielding shell expand externally, so that the welding pins can more accurately welded with the welding holes of a circuit board at right positions.

Description

Electric connector

Technical field

The utility model refers to a kind of electric connector that is installed on the circuit board especially relevant for a kind of electric connector.

Background technology

See also Figure 1 and Figure 2, for the TaiWan, China application number is 97215785 the disclosed a kind of electric connector of patent, its exposure has an insulating body 11, overcharges the shielding casing 13 that the terminals 12 and that are dissolved in the insulating body 11 cover insulating body 11.Wherein, shielding casing 13 portion in its back-end discloses two tabs 131 that the bending of oriented back is extended, and it respectively has an extension 1311 and a bending segment 1312, and the rearward end of the shielding casing 13 back leg 132 of extension downwards also.Insulating body 11 in its back-end the portion both sides each disclose and to have one to extend the inclined-plane 112 that is connected to internal face from arc angle 111 end tilts from the outside wall surface arc angle 111 and that is provided with that extends internally, and insulating body 11 convexes with a plurality of fins 113 on the outside wall surface of periphery.

After in insulating body 11 is mounted on shielding casing 13, fin 113 will be closely against the internal face of shielding casing 13, so that insulating body 11 is combined closely with shielding casing 13, and tabs 131 presents the not state (shown in dotted line) of bending before assembling, so can be by the design on arc angle 111 and inclined-plane 112, make bending segment 1312 insulating bodies of bending vicinity smoothly 11 rear ends of tabs 131, and make the outside wall surface of extension 1311 contiguous insulating bodies 11.

Yet, combine closely for making insulating body 11 and shielding casing 13, on insulating body 11, be provided with fin 113 to be tight against shielding casing 13 internal faces, but also therefore provide shielding casing 13 to produce a strength of outwards opening, tabs 131 bending backs can't be near insulating body 11 because of factor affecting with resilience again, so be subject to aforesaid outer tension force, tabs 131 is outwards opened by the both sides of shielding casing 13, the back leg 132 that causes shielding casing 13 rearward end simultaneously expands outwardly, and can't cause back leg 132 to be difficult for and welding hole 141 contrapositions welding exactly to being positioned at the welding hole 141 on the circuit board 14.

Summary of the invention

The purpose of this utility model is to provide a kind of electric connector, and it can improve the easily outer problem of opening of tabs of shielding casing, so that the leg of shielding casing can weld with the welding hole contraposition of circuit board comparatively exactly.

In order to achieve the above object, the utility model provides a kind of electric connector, and it comprises that an insulating body, a plurality of terminals and of being located at this insulating body cover the shielding casing of this insulating body; This shielding casing has relative front end and rear end, and the biside plate rear end of this shielding casing extends back respectively and establishes one folding piece, and each tabs has one first bending segment and second bending segment from the terminal bending extension of this first bending segment; This insulating body includes the matrix part of a pair of rear end that should shielding casing, the rearward end of these relative both sides of matrix part respectively has lateral wall and rear wall, the rearward end of this insulating body in these matrix part both sides respectively is formed with a pair of first tilting section that should first bending segment, the front end of this first tilting section is connected to this lateral wall, and the rear end of this first tilting section is connected to this rear wall, first bending segment of this tabs is positioned between a primary importance and a second place, wherein this primary importance is close to this first tilting section for this first bending segment, and this second place is extended back and parallel this shielding casing side plate by this shielding casing side plate rear end for this first bending segment.

The beneficial effect that the utlity model has comprises: form first tilting section that is connected to lateral wall and rear wall via the rearward end in the insulating body both sides, make first bending segment of tabs of shielding casing be positioned between the primary importance and the second place, the factor of opening outward etc. with the resilience that improves tabs, with the leg that reduces shielding casing etc. the problem that expands outwardly is arranged easily, make that then leg can be comparatively exactly and the welding hole contraposition welding of circuit board.

Description of drawings

Fig. 1 is the three-dimensional exploded view between existing electric connector and circuit board.

Fig. 2 is located at the three-dimensional combination figure of circuit board for existing electric connector.

Fig. 3 is the three-dimensional exploded view between the utility model electric connector and circuit board.

Fig. 4 is another visual angle three-dimensional exploded view between the utility model electric connector and circuit board.

Fig. 5 is the rearview of the insulating body of the utility model electric connector.

Fig. 6 is the B-B cutaway view of Fig. 5.

Fig. 6 A is the A part detail drawing of Fig. 6.

Fig. 7 is located at the three-dimensional combination figure of circuit board for the utility model electric connector.

Fig. 8 is located at the front perspective view of circuit board for the utility model electric connector.

Wherein, description of reference numerals is as follows:

11 insulating bodies, 111 arc angles

112 inclined-planes, 113 fins

12 terminals, 13 shielding casings

131 tabs, 1311 extensions

1312 bending segments, 132 back legs

14 circuit boards, 141 welding holes

2 insulating bodies

201 leading sections, 202 rearward end

21 matrix parts

211 fins, 212 sides

2121 madial walls, 2122 lateral walls

2123 rear walls, 213 first tilting sections

214 second tilting sections, 215 arc angles

216 breach

22 tongues

23 terminal grooves

24 base plate

3 shielding casings

301 front ends, 302 rear ends

31 tabs

311 first bending segments, 312 second bending segments

32 back legs

Leg before 33

34 top boards

35 side plates

36 base plates

37 bonnets

4 terminals

41 holding parts

42 contact sites

43 welding foots

5 circuit boards

51 conductive pads

52 welding holes

Embodiment

Please consult Fig. 3 and shown in Figure 4 earlier, the utility model provides a kind of electric connector, and it includes an insulating body 2, a shielding casing 3 and a plurality of terminal 4.

Insulating body 2 has relative leading section 201 and rearward end 202, this insulating body 2 includes a matrix part 21, a tongue 22, a plurality of terminal groove 23 and base plate 24, tongue 22 is connected the end face of matrix part 21 towards leading section 201 directions, terminal groove 23 is formed at top, the bottom surface of tongue 22 and extends to matrix part 21, base plate 24 is connected the bottom of matrix part 21 and parallel with tongue 22 towards front end 201 directions, and also is equipped with a plurality of fins 211 on the matrix part 21.

Please cooperate again and consult Fig. 5, shown in Fig. 6 and Fig. 6 A, the rearward end 202 of the matrix part 21 relative both sides 212 of insulating body 2 respectively has madial wall 2121, lateral wall 2122 and rear wall 2123, the rearward end 202 of matrix part 21 both sides 212 respectively is formed with one first tilting section 213, the front end of first tilting section 213 is connected to lateral wall 2122, and the rear end of first tilting section 213 is connected to rear wall 2123, and first tilting section 213 is an inclined-plane, 212 rearward end 202 also is formed with one second tilting section 214 to matrix part 21 in both sides, the front end of second tilting section 214 is connected to madial wall 2121, and the rear end of second tilting section 214 is connected to rear wall 2123.First tilting section 213 and second tilting section 214 can be respectively an inclined-plane, to form a triangle cone structure.Wherein, the rear end of first tilting section 213 can link to each other with the rear end of second tilting section 214 and form an arc angle 215.On the other hand, the both sides 212 of the matrix part 21 of insulating body 2 also further can each be concaved with a breach 216 towards leading section 201 directions at the rear wall 2123 of rearward end 202, and above-mentioned first tilting section 213, second tilting section 214 and arc angle 215 all are positioned at breach 216.

Shielding casing 3 by a metallic plate through punching press, bending forms, it has the leading section 201 of corresponding insulating body 2 and the front end 301 and rear end 302 of rearward end 202, shielding casing 3 extends back respectively in the rear end 302 of biside plate 35 and is provided with one folding piece 31 and is extended with a back leg 32 in the bottom of biside plate 35 rear ends 302 respectively downwards, then be extended with downwards and the relative preceding leg 33 in leg 32 front and back, back in the bottom at biside plate 35 front ends 301 places of shielding casing 3, each tabs 31 has one first bending segment 311 and from first bending segment, 311 terminal second bending segments 312 that extend.In the specific embodiment, shielding casing 3 includes the top board 34 that connects biside plate 35 and be oppositely arranged and reaches the bonnet 37 that extends from top board 34 rear ends 302 with base plate 36.

Each terminal 4 includes a holding parts 41, a contact site 42 and that extends from holding parts 41 1 ends bends the welding foot 43 that extends from the holding parts 41 relative other ends.

Please arrange in pairs or groups again and consult Fig. 7 and Fig. 8, terminal 4 with interleaved be located at the terminal groove 23 of insulating body 2 correspondences, be fastened in terminal groove 23 walls of matrix part 21 correspondences via holding parts 41, make 42 one-tenth of contact sites be positioned at the terminal groove 23 (as shown in Figure 8) of tongue 22 tops, bottom surface up and down alternately, 43 of welding foots stretch out in outside the matrix part 21.

Shielding casing 3 is in order to cover insulating body 2, when bonnet 37 in not the bending state (as shown in Figures 3 and 4), insulating body 2 can be mounted in the shielding casing 3 back to front, and the base plate 24 of insulating body 2 is positioned at base plate 36 belows of shielding casing 3, can live base plate 36 in order to support.After bonnet 37 is bent (as shown in Figure 7), insulating body 2 can be positioned in the shielding casing 3, the matrix part 21 of insulating body 2 is promptly corresponding to the rear end 302 of shielding casing 3, tongue 22 is positioned at shielding casing 3, and corresponding to the front end 301 of shielding casing 3, and the fin 211 of insulating body 2 will be tight against the internal face that is contacted with side plate 35 and top board 34, so that insulating body 2 is combined closely with shielding casing 3, fin 211 will make shielding casing 3 produce an outer strength of opening this moment.

In the utility model, the tabs 31 of shielding casing 3 is when bending, and first tilting section 213 on the insulating body 2 can be used to make the 311 first pre-bendings of first bending segment corresponding to first bending segment 311.Second tilting section 214 promptly corresponding to second bending segment 312 of pre-bending, can be used to make the 312 first pre-bendings of second bending segment, and available so that second bending segment 312 of 214 of arc angles bends smoothly.Therefore, when tabs 31 when external force bends, first bending segment 311 can be close to 312 of first tilting section, 213, the second bending segments can be close to second tilting section 214.

Hold above-mentioned, when bending external force removes, by first tilting section 213 first bending segment, 311 bendings of tabs are pressed close to, so be difficult for excessive expanding outwardly after can making 311 resiliences of first bending segment, also first bending segment 311 after the i.e. bending can be between a primary importance and a second place, be subject to the outer tension force that insulating body 2 produced and produce the problem that expands outwardly to improve tabs 31, and improve the problem that back leg 32 easily expands outwardly, wherein primary importance is the position that first bending segment 311 is close to first tilting section 213, and the second place then is that first bending segment 311 is extended back by shielding casing 3 side plates 35 rear ends 302 and the position of parallel shielding casing 3 side plates 35.In addition, by second tilting section 214 second bending segment, 312 bendings of tabs 31 are pressed close to, so be difficult for 302 directions expansion to the back-end after can making 312 resiliences of second bending segment, also second bending segment 312 after the i.e. bending is between one the 3rd position and one the 4th position, to strengthen improving the problem that tabs 31 easily extends out again, wherein the 3rd position is the position that 312 one-tenth of second bending segments are close to second tilting section 214, and then to be second bending segment 312 by first bending segment, 311 ends bend inwards in the 4th position extends and perpendicular to the position of shielding casing 3 side plates 35.On the other hand, second bending segment, 312 correspondences are arranged in breach 216, have the purpose that reduces the electric connector overall dimensions.

Therefore, when electric connector of the present utility model provides when being arranged on the circuit board 5, circuit board 5 is provided with the conductive pad 51 of the welding foot 43 of corresponding terminal 4, to provide welding foot 43 welding, and circuit board 5 is provided with corresponding to the preceding leg 33 of shielding casing 3 and the welding hole 52 of back leg 32, insert and welding for preceding leg 33 and back leg 32 contrapositions, with the location electric connector.Yet the utility model is via the design of first tilting section 213, has to improve the problem that the leg as back leg 32 grades easily expands outwardly, so make leg to weld with welding hole 52 contrapositions in assembling the margin of tolerance comparatively exactly.

Comprehensive above-mentioned explanation, the utility model forms first tilting section that is connected to lateral wall and rear wall in the rearward end of insulating body both sides, thereby make first bending segment of tabs of shielding casing be positioned between the primary importance and the second place, open outward and shielding casing is subject to the insulating body influence and outer factor such as open is arranged with the resilience that improves tabs, with the leg that reduces shielding casing etc. the problem that expands outwardly is arranged easily, make that then leg can be comparatively exactly and the welding hole contraposition welding of circuit board.

The above only is a preferable possible embodiments of the present utility model, non-so promptly limit to claim of the present utility model, so the equivalent structure that uses the utility model specification and accompanying drawing content to be done such as changes, and all in like manner all is contained in the scope of the present utility model.

Claims

1, a kind of electric connector, it comprises that an insulating body, a plurality of terminals and of being located at this insulating body cover the shielding casing of this insulating body; This shielding casing has relative front end and rear end, and the biside plate rear end of this shielding casing one folding piece that extends back respectively, each tabs have second bending segment that one first bending segment and extends from the terminal bending of this first bending segment; This insulating body includes the matrix part of a pair of rear end that should shielding casing, the rearward end of these relative both sides of matrix part respectively has lateral wall and rear wall, it is characterized in that: the rearward end of this insulating body in these matrix part both sides respectively is formed with a pair of first tilting section that should first bending segment, the front end of this first tilting section is connected to this lateral wall, and the rear end of this first tilting section is connected to this rear wall, first bending segment of this tabs is between a primary importance and a second place, wherein this primary importance is close to this first tilting section for this first bending segment, and this second place is extended back and parallel this shielding casing side plate by this shielding casing side plate rear end for this first bending segment.

2, electric connector as claimed in claim 1 is characterized in that: this first tilting section is an inclined-plane.

3, electric connector as claimed in claim 2 is characterized in that: this shielding casing biside plate rear end is also extended a back leg respectively downwards.

4, electric connector as claimed in claim 3 is characterized in that: this shielding casing biside plate also is extended with and this relative preceding leg in leg front and back, back; Also be equipped with a plurality of fins that are contacted with the internal face of this shielding casing on the matrix part of this insulating body.

5, as claim 1,2,3 or 4 described electric connectors, it is characterized in that: the rearward end of the matrix part both sides of this insulating body respectively has madial wall; The rearward end of these matrix part both sides also respectively forms one second tilting section, the front end of this second tilting section is connected to this madial wall, and the rear end of this second tilting section is connected to this rear wall, second bending segment of this shielding casing is between one the 3rd position and one the 4th position, this second tilting section is close to for this second bending segment in the 3rd position, and extend and perpendicular to this shielding casing side plate for this second bending segment is bent inwards by this first bending segment end the 4th position.

6, electric connector as claimed in claim 5 is characterized in that: this first tilting section and this second tilting section are respectively an inclined-plane, to form a triangle cone structure.

7, electric connector as claimed in claim 6 is characterized in that: the rear end of this first tilting section links to each other with the rear end of this second tilting section and forms an arc angle.

8, electric connector as claimed in claim 7 is characterized in that: these matrix part both sides also respectively are concaved with a breach at the rear wall of this rearward end, and this first tilting section, this second tilting section and this arc angle lay respectively in this breach.

9, electric connector as claimed in claim 8 is characterized in that: this shielding casing comprises and connects this biside plate and top board that is oppositely arranged and base plate.

10, electric connector as claimed in claim 9 is characterized in that: this insulating body also comprises one and is connected in this matrix part and corresponding to tongue and a plurality of terminal groove that is formed at this tongue and extends to this matrix part of the front end of this shielding casing; Each terminal comprises a holding parts, a contact site and that extends from this holding parts one end bends the welding foot that extends from the relative other end of this holding parts, this holding parts is fastened in the terminal groove of this matrix part correspondence, this contact site is in the terminal groove of this tongue correspondence, and this welding foot stretches out this matrix part.