CN202930588U - Electric connecter - Google Patents

Abstract

The utility model discloses an electric connector defined with a butting direction. The electric connector comprises an insulation body, a central terminal fixed on the insulation body and a shielding shell for covering the insulation body, wherein the insulation body comprises a base part and an extension part extending backward from the base part. A butting cavity is arranged on the base part in a concave way. The central terminal comprises a contact portion contained in the butting cavity and a welding portion fixed on the extension part. The contact portion is shaped as a cylinder. The contact portion's cross-sectional area perpendicular to the butting direction is greater than the welding portion's cross-sectional area perpendicular to the butting direction, and the contact portion and the welding portion are separated from each other. The central terminal is designed as a two-piece one such that the central terminal is simple to manufacture and manufacturing cost of the central terminal is reduced.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, relates in particular to a kind of electric connector with center terminal.

[background technology]

Chinese utility model patent has disclosed a kind of electric connector No. 201120228343.5, and this electric connector comprises insulating body and be immobilizated in center terminal on insulating body, and described insulating body comprises base portion and the extension that extends back from base portion.Described center terminal is one-body molded, and this center terminal comprises the weld part that is immobilizated in insulating body and the contact site that extends forward from weld part.Described center terminal is assembled in after insulating body rotating welding section is positioned on the extension of described insulating body weld part, thereby center terminal is immobilizated on insulating body.Be unfavorable for adopting turning processing because center terminal has the multiple tracks bending, if adopt the extrusion modling mode, be unfavorable for reducing manufacturing cost.

So, wish that a kind of novel electric connector of design is to improve the problems referred to above.

[utility model content]

Technical problem to be solved in the utility model is to provide a kind of electric connector that reduces the center terminal manufacturing cost.

for addressing the above problem, the utility model connector adopts following technical scheme: a kind of electric connector, definition has the docking direction, this electric connector comprises insulating body, be immobilizated in the center terminal on insulating body and be covered in shielding casing on insulating body, described insulating body comprises base portion and the extension that extends back from base portion, described base portion is concaved with one and docks the chamber, described center terminal comprises the contact-segment that is contained in the docking chamber and is immobilizated in the welding section of extension, described contact-segment is cylindric, described contact-segment perpendicular to the docking direction sectional area greater than welding section perpendicular to the docking direction sectional area, and described contact-segment and welding section are separate design.

Compared with prior art, the utlity model has following beneficial effect: described center terminal design mix is from the two-piece type that arranges and can coordinate, and makes that the center terminal manufacturing is simple and cost is lower.

[description of drawings]

Fig. 1 is the stereogram of the utility model electric connector;

Fig. 2 is that the center terminal of electric connector shown in Figure 1 is not immobilizated in the stereogram on insulating body;

Fig. 3 is that electric connector center terminal shown in Figure 2 is immobilizated in the stereogram on insulating body;

Fig. 4 is the three-dimensional exploded view of electric connector shown in Figure 1;

Fig. 5 is another angle three-dimensional exploded view of electric connector shown in Figure 4;

Fig. 6 is that electric connector shown in Figure 1 is along the cutaway view of A-A line;

Fig. 7 is that electric connector shown in Figure 1 is along the cutaway view of B-B line.

[embodiment]

Please refer to the drawing 1 is to shown in Figure 2, and the utility model electric connector 100 mainly comprises insulating body 1, is immobilizated in the terminal of insulating body 1 and is covered in the outer shielding casing 4 of insulating body 1.

See also Fig. 3 to shown in Figure 7, the rectangular setting of described insulating body 1, the extension 11 that this insulating body 1 comprises base portion 10, extends back from base portion 10.The fore-and-aft direction that it is pointed out that electric connector 100 is exactly the docking direction of electric connector 100.The rear end face 102 that described base portion 10 comprises front end face 101 (being interface), be oppositely arranged with front end face 101 and four side wall surfaces 103 that are connected front end face 101 and rear end face 102 and are oppositely arranged.Described base portion 10 has a receiving space 104 that runs through the front and rear end, and described receiving space 104 comprises the docking chamber 105 of accommodating butt-jointed electric connector and from the fixing chamber 106 of docking that chamber 105 is arranged with backward, is provided with stopping surface 107 in described fixing chamber 106.Described extension 11 comprises holding parts 111 and is positioned at the stop section 112 of holding parts 111 1 sides, described holding parts 111 has upper and lower surface and runs through the draw-in groove 108 on upper and lower surface, described draw-in groove 108 is provided with opening 113, this opening 113 is oppositely arranged with stop section 112, and the width of described opening 113 is less than the diameter of draw-in groove 108.Described opening 113 offers conduit 114 in the side near stop section 112, and this conduit 114 can make the opening 113 of extension 11 have deformation space.Rear end face 102 is concaved with before receiving space 104 1 side direction and the switch terminal accepting groove 109 that docks chamber 104 and be connected.

See also Fig. 4 to shown in Figure 7, terminal comprises center terminal 2.Center terminal 2 comprise be contained in docking in chamber 105 contact 21 and be sheathed on the weldment 22 of contact 21.Contact 21 is columned entity, and this contact 21 comprises contact-segment 211 and be located at the fixing section 212 of the relative end of contact-segment, and this fixing section 212 is from contact-segment 211 formation that extends back.The rear end face of fixing section 212 is concaved with a shrinkage pool 213.The diameter of fixing section 212 is greater than the diameter of contact-segment 211, thereby forms a blocking part 214, and the stopping surface 107 that arranges is kept out in this blocking part 214 on base portion 10.Described weldment 22 comprises the inserting paragraph 221 that is inserted in contact 21 and the welding section 222 that extends back from inserting paragraph 221, and welding section 222 is " U " set up of character patt ern after the multiple tracks bending.Described welding section 222 has from inserting paragraph 221 bending and extends and with the vertically disposed first paragraph of inserting paragraph, extend and the second segment that be arranged in parallel with inserting paragraph and extending and the 3rd section of be arrangeding in parallel with first paragraph from the second segment bending from the first paragraph bending, and described first paragraph, second segment and the 3rd section interconnect and be " U " set up of character patt ern.Described contact-segment 211 perpendicular to the docking direction sectional area greater than welding section 222 perpendicular to the docking direction sectional area, the diameter of the fixing section 212 of the diameter of inserting paragraph 221 and contact 21 has larger gap.The mode of relatively existing employing extrusion modling obtains the center terminal 2 of contact 21 and weldment 22 Integral designs, makes more complicated and cost higher.And contact 21 and weldment 22 are made two-piece type, namely separate and arrange, inserting paragraph 221 is inserted in the set shrinkage pool of fixing section 212 213, and coordinate with shrinkage pool 213 interferences, thereby make contact 21 and weldment 22 phase fixings, the relative existing structure of center terminal 2 that forms thus is conducive to make simple and reduces costs.

Terminal further comprises switch terminal 3, and switch terminal 3 comprises movable terminal 31 and fixed terminal 32, and described fixed terminal 32 and movable terminal 31 are positioned at the same side in docking chamber.The first contact site 312 that movable terminal 31 comprises the holding parts 311 that is immobilizated in insulating body 1, bend backward from holding parts 311 and the second contact site 313 that projects towards receiving space 104 from holding parts 311 middle parts.Fixed terminal 32 comprises the holding parts 321 that is immobilizated in insulating body 1 and the contact site 322 that extends forward from holding parts 321.

The inserting paragraph 221 of weldment 22 is arranged with in the shrinkage pool 213 of stiff end 212 from the rear end face insertion of the stiff end 212 of contact 21, and make weldment 22 and contact 21 phase fixings by inserting paragraph 221 and interference engagement between shrinkage pool 213, thereby the center terminal 2 of the formula that forms a whole.Described center terminal 2 inserts described receiving spaces 104 from the rear end face 102 of base portion 10, blocking part 214 keep out on the stopping surface 107 that base portion 10 arranges to carry out spacing on the docking direction to center terminal 2.Contact-segment 211 was contained in and docked in chamber 105 this moment, and welding section 222 is in outside the rear end face 102 of base portion 10, and the whole below that is positioned at extension 11.Pivot terminal 2, the opening 113 that makes welding section 222 arrange on extension 11 snaps in draw-in groove 108, and borrows stop section 112 to make 2 pairs of these rotations of center terminal carry out spacing.Due to the width of opening 113 diameter less than welding section 222, welding section 222 just can not come off from draw-in groove 108 automatically.Extension 11 offers conduit 114 in a side relative with described opening 113, and described conduit 114 is conducive to increase the elasticity of welding section 222 extension 11 when opening enters draw-in groove 108.Described center terminal 2 is designed to the two-piece type that contact 21 matches with weldment 22, simple in structure, processing procedure is easy, overcome center terminal 2 and made the deficiency of turning processing difficulties because of the multiple tracks bending, and avoided the diameter gap of contact 21 and weldment 22 to make more greatly the higher shortcoming of extrusion modling cost.

The movable terminal 31 of described switch terminal 3 and fixed terminal 32 insert forward in switch terminal accepting groove 109 from the rear end face 102 of base portion 10 respectively, the first contact site 312 and the second contact site 313 consist of two electrical contacts that get an electric shock with electric connector, make contact more reliable.Movable terminal 31 is in closure state with fixed terminal 32 when butt-jointed electric connector does not insert, be in off-state after electric connector inserts.

Described shielding casing 4 comprise top 41 and from the top 41 both sides respectively to two sidepieces 42 of downward-extension, the broken snap-latch piece 43 that is provided with of described top 41 arsis, after described shielding casing 4 is assembled in described insulating body 1 from back to front, thereby snap-latch piece 43 is sticked in and prevents on insulating body 1 that shielding casing 4 from skidding off insulating body 1 backward.Described two sidepieces 42 are respectively equipped with weld part 44, and this weld part 44 comprises respectively the first weld part 441 and perforate second weld part 442 of surperficial adhesive type.That is, described shielding casing has two sidepieces 42 that are oppositely arranged, and described each sidewall is respectively equipped with a surperficial adhesive type weld part and a perforate weld part.Weld part 44 is designed to be provided with simultaneously and adopts surperficial adhesive type weld part and perforate weld part can make welding more firm.

Present embodiment is the utility model better embodiment, and certainly, the utility model also can adopt other execution modes, gives unnecessary details no longer one by one herein.

Claims (10)

1. electric connector, definition has the docking direction, this electric connector comprises insulating body, be immobilizated in the center terminal on insulating body and be covered in shielding casing on insulating body, described insulating body comprises base portion and the extension that extends back from base portion, described base portion is concaved with one and docks the chamber, described center terminal comprises the contact-segment that is contained in the docking chamber and is immobilizated in the welding section of extension, described contact-segment is cylindric, it is characterized in that: described contact-segment perpendicular to the docking direction sectional area greater than welding section perpendicular to the docking direction sectional area, and described contact-segment and welding section are separate design.

2. electric connector as claimed in claim 1 is characterized in that: described contact-segment extends back and forms the fixing section, and the diameter of fixing section is greater than the diameter of contact-segment.

3. electric connector as claimed in claim 2, it is characterized in that: described fixing section is concaved with shrinkage pool away from an end of contact-segment, and described welding section is provided with the inserting paragraph that matches with shrinkage pool, described inserting paragraph and shrinkage pool interference engagement.

4. electric connector as claimed in claim 1, it is characterized in that: described welding section has from inserting paragraph bending and extends and with the vertically disposed first paragraph of inserting paragraph, extend and the second segment that be arranged in parallel with inserting paragraph and extending and the 3rd section of be arrangeding in parallel with first paragraph from the second segment bending from the first paragraph bending, and described first paragraph, second segment and the 3rd section interconnect and be " U " set up of character patt ern.

5. electric connector as claimed in claim 4, it is characterized in that: described extension has the holding parts that is positioned at extension one side and the stop section that is positioned at the extension opposite side, and described holding parts is provided with the draw-in groove that matches with welding section.

6. electric connector as claimed in claim 5, it is characterized in that: described draw-in groove has opening, and the diameter of described draw-in groove is greater than the width of this opening.

7. electric connector as claimed in claim 6 is characterized in that: described draw-in groove is provided with conduit in extension near a side of stop section, and described conduit and opening are oppositely arranged.

8. electric connector as described in any one in claim 1 to 7, it is characterized in that: described electric connector has pair of switch terminals, and described switch terminal comprises fixed terminal and movable terminal, and described fixed terminal and movable terminal are positioned at the same side in docking chamber.

9. electric connector as claimed in claim 8, it is characterized in that: described movable terminal has the first contact site and the second contact site, and this first contact site consists of two point with the second contact site with butt-jointed electric connector and contacts.

10. electric connector as described in any one in claim 1 to 7, it is characterized in that: described shielding casing has two sidepieces that are oppositely arranged, and described each sidepiece is respectively equipped with a surperficial adhesive type weld part and a perforate weld part.

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