CN2660720Y

CN2660720Y - Electrical connector

Info

Publication number: CN2660720Y
Application number: CN 03278057
Authority: CN
Inventors: 黄华银; 林南宏
Original assignee: Hongteng Precision Technology Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongteng Precision Technology Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2003-08-23
Filing date: 2003-08-23
Publication date: 2004-12-01
Anticipated expiration: 2013-08-23

Abstract

The electrical connector includes an insulation body provided with a plurality of terminal holes and a plurality of conductive terminals, the conductive terminal is contained in the terminal hole, the terminal has a fixed holding part used to fix and hold the terminal on the insulation body, wherein, the fixed holding part is provided with at least one concave part, and the insulation body is provided with a convex part embedded into the concave part. The convex part matches with the two sides of the concave part, enhancing fixed holding force of the insulation body on the terminal.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, refers to a kind of electric connector of strengthening its terminal and insulating body retain strength especially.

[background technology]

Along with the development of electric connector to the miniature high-speed stabilising direction, its insulating body and conducting terminal also develop to miniature high density direction, increased the cooperation difficulty of electric connector like this with its assembly that is connected, at the conducting terminal of electric connector and insulating body fixing inadequately firmly the time, the terminal phenomenon that gets loose appears easily.Therefore, industry uses a kind of punching press insulating body to make its plastic deformation to strengthen the technology of terminal retain strength, promptly the punching press insulating body is carried out in the terminal fixing position on insulating body, make the plastic deformation of insulating body material, with the interference engagement of reinforcement terminal and insulating body, thereby prevent that terminal from getting loose.

See also Fig. 1 to Fig. 7, be depicted as existing its insulating body of a kind of punching press and make the edge clipping formula electric connector of a side plastic deformation of insulating body with reinforcement terminal retain strength, it is used to be mounted to circuit board (not shown).This electric connector comprises long and narrow insulating body 60 and is contained in a plurality of conducting terminals 70 of insulating body 60.Insulating body 60 is parallel to long and narrow direction and has plug surface 61, relative with plug surface 61 and be used to be installed in installed surface 62 on the circuit board, and vertical two relative lateral surfaces 63 on this two sides.Insulating body 60 is provided with a plurality of terminal holes 65 that run through plug surface 61 and installed surface 62, and these terminal holes 65 are provided with first mating surface 651 and second mating surface 652 that is parallel to lateral surface 63, and first mating surface 651 lateral surface 63 close together therewith.Terminal 70 has sheet holding parts 72, has extended arc-shaped contact part 74 by holding parts 72 1 ends to plug surface 61 directions, and holding parts 72 convexes with a plurality of positioning convex points 78 with contact site 74 junctions to a side; Be provided with insertion section 76 by holding parts 72 other ends to installed surface 62 directions, installed surface 69 is stretched out in this insertion section 76, for being used to be inserted into circuit board.In addition, holding parts 72 has first fixing surface 721 and second fixing surface 722, for corresponding with second mating surface 652 with first mating surface 651 of terminal hole 65, and can fit tightly with it.During the electric connector assembling, earlier terminal 70 is inserted terminal hole 65 from plug surface 61, until positioning convex point 78 and insulating body 60 butts location, the installed surface 62 of insulating body 6 is stretched out in the insertion section 76 of terminal 70 at this moment, and then electric connector is installed on the circuit board that is provided with jack (not shown), the jack of circuit boards is inserted in the insertion section 76 of terminal 70.But; because terminal 70 numbers are numerous and the position error of terminal 70; in terminal 70 insertion process, regular meeting has the terminal 70 and the interference of jack excessive and cause terminal 70 to retreat, thereby is unfavorable for that follow-up insertion section 76 contacts with the electrical of plug-in card with the welding and the contact site 74 of circuit board.For increasing the retain strength of holding parts 72 and terminal hole 65, before electric connector is filled on the circuit board, get row's thread form groove 69 in lateral surface 63 punching presses of insulating body 60, first mating surface, the 651 indents distortion that makes insulating body 60 terminal holes 65 is increasing itself and the interference of first fixing surface 721 of terminal 70, thus the increase retain strength.

For further strengthening the retain strength of holding parts 72 and terminal hole 65, convention by industry is promptly set up salient point to strengthen interference at interference surface, just, make a plurality of salient points 7211, to strengthen holding parts 72 and terminal hole 65 first mating surfaces 651 interference engagement in holding parts 72 first fixing surface 721 upper punches.Yet, because the thickness of terminal 70 is less, be generally 0.30mm, the diameter of salient point 7211 is no more than 0.6mm usually, and during punching out salient point 7211, can form the similar shrinkage pool 7222 of size on second fixing surface 722, thus excessive as if its salient point 7211 diameters, can cause its intensity a little less than, when punching press insulating body 60, because of the material of plastic deformation indent pushes salient point 7211, easily make salient point 7211 take place to reply distortion, thereby make terminal 70 holding parts 72 not good with the interference effect of terminal hole 65.And the width of terminal 70 is generally more than the 1.5mm, diameter 0.6mm much larger than salient point 7211, when punching press insulating body 60, bigger area on first mating surface 651 need be pressed to first fixing surface 721, so for certain press depth S1 (as shown in Figure 7), the amount of interference S2 of its generation is less, and, the diameter of salient point 7211 is less, bulged-in first mating surface, 651 areas direct and salient point 7211 interference effects are also less, can only with the part material effects of plasticity indent distortion, and be easy to make first mating surface, 651 distortion with salient point 7211 effects, so that its fixing effect is not good.

Therefore, be necessary to design a kind of electric connector to overcome above defective.

[utility model content]

The purpose of this utility model is to provide a kind of electric connector of strengthening the terminal fixing effect.

The electric connector that the utility model discloses, a side plastic deformation that makes insulating body for its insulating body of a kind of punching press is to strengthen the electric connector of terminal retain strength, comprise insulating body and a plurality of conducting terminal, this insulating body is provided with a plurality of terminal holes that run through insulating body near the one lateral surface; Conducting terminal is placed in the terminal hole, and these terminals have the holding parts that is used for terminal is immobilizated in insulating body, and wherein this holding parts is provided with at least one depressed part, and insulating body is provided with the protuberance that embeds in this depressed part.

Compare with prior art, the utlity model has following advantage: the holding parts of electric connector terminal is provided with depressed part, the lateral surface of punching press insulating body and the material that is pressed into can fully embed in the depressed part, and with the double side acting of depressed part, thereby increase retain strength to terminal.

[description of drawings]

Fig. 1 is the stereogram of existing electric connector.

Fig. 2 is the front view of existing electric connector terminal.

Fig. 3 is the end view of Fig. 2 correspondence.

Fig. 4 is the cutaway view that amplify at IV shown in Figure 3 place.

Fig. 5 is the be stamped cut-away view of forward position V-V direction shown in Figure 1 of existing electric connector.

Fig. 6 is the enlarged drawing at VI shown in Figure 5 place.

Fig. 7 is that VI shown in Figure 5 put the enlarged drawing at place after existing electric connector was stamped.

Fig. 8 is the stereogram of the utility model electric connector.

Fig. 9 is the front view of the utility model electric connector terminal.

Figure 10 is the corresponding end view of figure.

Figure 11 is the be stamped cutaway view of forward position XI-XI direction shown in Figure 8 of the utility model electric connector.

Figure 12 is the enlarged drawing of XII shown in Figure 11 position.

Figure 13 is the cutaway view along XIII-XIII direction shown in Figure 12.

[embodiment]

See also Fig. 8 to Figure 12, the electric connector 10 that the utility model discloses is used for connexon circuit board (not shown) to circuit board (not shown), a plurality of terminals 30 that it comprises long and narrow insulating body 20 and is contained in insulating body 20.

Insulating body 20 has the installed surface 22 that is used to be mounted on the circuit board, the plug surface 21 relative with installed surface 22 and the first vertical lateral surface 23 of two sides therewith.There is a concave step in first lateral surface 23 in be provided with second lateral surface, 27, the second lateral surfaces 27 and first lateral surface 23 of being convenient to punching press near installed surface 22 places.The centre position of plug surface 21 is concaved with the groove 24 of parallel long and narrow direction, and form two sidewalls 26 and diapire 28 thus, two side positions at groove 24 are provided with the terminal hole 25 that runs through installed surface 22 and plug surface 21, and these terminal hole 25 close second lateral surfaces 27, and have two relative engagement faces 251 that are parallel to aforementioned second lateral surface 27.

Electric terminal 30 is placed in the terminal hole 25, its have be used for terminal 30 be immobilizated in insulating body 20 diapires 28 holding parts 32, extend to the arc-shaped contact part 34 at sidewall 26 places and extend insertion section 36 outside the insulating body 20 from an end of holding parts 32 from the relative other end of holding parts 32, and convex with the location division 38 of two symmetries in the holding parts 32 and the junction side direction of contact site 34, location division 38 is used for when terminal 30 is inserted into insulating body 20, is connected on the diapire 28 of the insulating body 20 and position that location terminal 30 inserts.Holding parts 32 has two fixing surface 321 that can fit tightly with aforementioned two mating surfaces 251, and is provided with two the rectangular channel shape depressed parts 324 up and down that connect two fixing surface 321 along the position in the dual-side of holding parts 32.

After terminal 30 inserted insulating bodies 20, depressed part 324 places of corresponding each terminal 30 carried out punching press on perpendicular to second lateral surface 27 of insulating body 20, thereby stamp out row's thread form groove 29.Because fixing surface 321 fits tightly with mating surface 251, therefore the material that is stamped of insulating body 20 can fully embed in the depressed part 324 and forms protuberance 254 (as shown in figure 13), protuberance 254 can with the double side acting of depressed part 324, thereby increase retain strength to terminal 30.In addition, because fixing surface 321 fits tightly with mating surface 251, the material that is stamped is subjected to multidirectional compression, thus the matter density after can increasing it and being stamped, thus can increase the resistance of failure of the material that is stamped, increase is to the retain strength of terminal 30.

Claims

1. electric connector, it comprises insulating body and a plurality of conducting terminal, insulating body has a lateral surface, be provided with a plurality of terminal holes that run through insulating body near this lateral surface, conducting terminal is placed in the terminal hole, and these terminals have the holding parts that is used for terminal is immobilizated in insulating body, and this holding parts has two relative fixing surface, it is characterized in that: fixing surface is provided with at least one depressed part, is provided with the protuberance that embeds in this depressed part in the terminal hole of insulating body.

2. electric connector as claimed in claim 1 is characterized in that: terminal hole has two the relative engagement faces parallel with aforementioned lateral surface, and the holding parts of terminal has two relative fixing surface, and mating surface and fixing surface fit tightly.

3. electric connector as claimed in claim 2 is characterized in that: thus protuberance is the plastic deformation of insulating body part to be embedded in the concave shaped portion form.

4. electric connector as claimed in claim 3 is characterized in that: depressed part is for connecting the rectangular recess of two fixing surface.

5. electric connector as claimed in claim 4 is characterized in that: depressed part is located at two positions up and down of holding parts side.

6. electric connector as claimed in claim 1 is characterized in that: insulating body is an elongated bodies, and has the plug surface perpendicular to lateral surface, is provided with a long and narrow groove in the long and narrow direction in plug surface upper edge, and terminal hole is distributed in the both sides of groove.

7. electric connector as claimed in claim 6 is characterized in that: the holding parts of terminal is contained in the groove diapire, and an end of holding parts is provided with the arc-shaped contact part that extends to recess sidewall, and its other end is provided with and extends the outer insertion section of insulating body.

8. electric connector as claimed in claim 7 is characterized in that: the junction of holding parts and contact site is provided with the location division of two symmetries of side direction protrusion.