CN2377712Y - Electric connector - Google Patents

Abstract

The utility model relates to an electric connector, which comprises an insulator and conductive terminals, wherein, the insulator is provided with a plurality of staircase-shaped through holes in rows, and the conductive terminals are correspondingly arranged in the through holes. The proper positions of the inner side surfaces of the through holes of the insulator are provided with at least one raised strip bulged out of the proper thickness of the inner side surfaces, and the raised strip is not positioned on a central line between two adjacent through holes. The problem that a plastic thin partition wall between the two adjacent through holes can be pressed with cracks when the conductive terminals are respectively inserted in the through holes can be effectively prevented via the structure, and the assembly performance of the insulator and the conductive terminals can be improved.

Description

Electric connector

The utility model is a kind of electric connector, in mobile electronic device, provides between circuit board or miniature electric connector that circuit board is connected with telecommunication between other electronic components.

The application of mobile electronic device in people's life is very extensive, such as electronic dictionary, mobile phone etc., because its design volume is little, so the convenience on the unique portable.These electronic installation inside can be provided with several miniature electric connectors usually; in order to provide between circuit board or circuit board is connected with the telecommunication of other electronic components; and these miniature electric connectors are less because of size; be subjected to the restriction of machining accuracy simultaneously; directly adopt the circular terminal hole of cylinder bodily form conducting terminal and insulating body to organize with the assembling mode of interference engagement admittedly together often; relevant prior art such as United States Patent (USP) the 4th; 133; 593,4; 645; 278 and 5,535, No. 100 case discloses.

Yet, when these electric connectors make conducting terminal insert the terminal hole of insulating body in assembling process, the terminal hole madial wall will be subjected to the extruding force on the normal direction, especially the two-terminal pitch of holes of working as insulating body is less, be that the terminal hole sidewall is thin and can't bear these extruding forces the time, this the thinnest position of terminal hole sidewall will be damaged, even might produce the crack, cause the electric property of electric connector and the stability of terminal fixing all to reduce.And, if these cracks occur on the inwall between two adjacent through holes, then to cross the tin stove and add man-hour at electric connector, melt scolding tin also might infiltrate in the terminal hole of insulating body along the crack, causes two adjacent conducting terminal short circuits and forms scrap.Even the unlikely generation of this extruding force crack also may make originally with regard to as thin as a wafer insulating body wall and bear improperly stress and deform, and then influence the overall appearance of electric connector.In addition, produce the mode of interference engagement between the terminal hole of conducting terminal and insulating body by whole cylindrical contact-making surface, for the less electric connector of overall dimension, seek out suitable fitness, promptly conducting terminal can strong fix on insulating body, be unlikely to the position squeeze crack that the terminal hole wall is the weakest again, just must adopt the splendid material of intensity, so will improve manufacturing cost, and must cooperate high-precision processing, consider that from economic factor this point is also inadvisable.

The purpose of this utility model is to provide a kind of electric connector, it can provide the preferable conducting terminal and the fit system of insulating body, with the mating holes inwall generation crack of avoiding insulating body or the distortion that influences outward appearance, cause the generation of short circuit phenomenon between the adjacent conductive terminal further to prevent melting solder from infiltrating in the crack, in addition, this electric connector can be borrowed special interference engagement mechanism between insulating body through-hole wall and conducting terminal, and provide the suitable and firm group of conducting terminal solid power, so can reduce the requirement of the higher fit tolerance of conducting terminal and insulating body palpus, to reduce the excessive demand and the manufacturing cost of machining accuracy.

For achieving the above object, the utility model is by the following technical solutions: this electric connector mainly comprises insulating body and conducting terminal, wherein insulating body is provided with some through holes, corresponding each through hole all has a conducting terminal to plant wherein, this conducting terminal has abutting end and plug end, side surface in abutting end is provided with an interference part, and the through hole of insulating body has been done the design of anti-crack, medial surface in the mating holes of its diameter maximum is provided with at least one raised line, this raised line is to protrude from mating holes medial surface one suitable thickness, it can produce interference engagement with the abutting end of conducting terminal, next door when structure can effectively be prevented terminating in the conducting terminal insertion whereby between the two through hole is by pressure break, and can reduce the manufacturing cost of these electric connectors, improve the assembly performance of insulating body and conducting terminal.

According to above-mentioned feature, the raised line of this mating holes medial surface is set to four, and be symmetrically distributed on the inside circumference of mating holes, wherein formed spacing is interference distance a between the aspectant raised line of two-phase, and being formed with attitude angle β between the axial connecting line of each raised line and two adjacent mating holess, each raised line is provided with width corresponding to central angle alpha simultaneously.

Compared with prior art, advantage of the present utility model is to improve the form that cooperates between terminal hole and the terminal, and effectively solves terminal hole plastic colloid thin-walled and produce problem of cracks, has also reduced the accuracy of manufacture of terminal hole simultaneously, has saved manufacturing cost.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a three-dimensional exploded view of the present utility model.

Fig. 2 is the vertical view of the utility model insulating body.

Fig. 3 be Fig. 1 along A-A to cutaway view.

Please in the lump with reference to Fig. 1, Fig. 2 and shown in Figure 3, the utility model electric connector 1 comprises insulating body 2 and conducting terminal 3, these insulating body 2 inside are provided with several and in a row run through insulating body 2 and stepped through hole 21, be provided with the plastic colloid next door 23 that very narrow thickness is only arranged because of size restrictions between each through hole 21, and each stepped through hole 21 is that mating holes 211 and the diameter of D1 formed by the transitional pore 212 of D2 by diameter, and wherein transitional pore 212 is away from the end of mating holes 211 and be opened in insulating body 2 with respect to interpenetrating by a perforation 213 between the groove 22 on the another side of be arranged with mating holes 211 side.Be provided with the raised line 214 that several extend along mating holes 211 axis directions in mating holes 211 medial surfaces, these raised lines 214 are symmetrically distributed on the inside circumference of mating holes 211, in present embodiment, raised line 214 is set to four, and balanced configuration is on the circumference of mating holes 211.At this moment, 214 formed spacings of the aspectant raised line of two-phase are interference distance a, and are formed with attitude angle β between the axial connecting line of each raised line 214 and two adjacent mating holess 211, and each raised line 214 is provided with width corresponding to central angle alpha simultaneously.

One end of conducting terminal 3 mainly is provided with the bigger abutting end of diameter 31, these abutting end 31 lateral surfaces are provided with ring-type interference part 311, produce interference engagement in order to raised line 214, so that the adhesion of conducting terminal 3 with insulating body 2 to be provided with insulating body 2 mating holess 211 inboards.And another less section of conducting terminal 3 diameters is a plug end 32, and its perforation 213 from the body 2 that insulate extends outside the groove 22, and can constitute electric connection with corresponding electronic component or circuit board (not shown).

Because the raised line 214 of symmetry is set in mating holes 211 inboards of insulating body 2, therefore, when insulating body 2 matches with conducting terminal 3, the interference part 311 of conducting terminal 3 only produces the extruding force of interfering combinations to raised line 214, and this extruding force suitably is dispersed near zone along the normal direction of raised line 214.Again, the axial connecting line that departs from 21 of two adjacent through holes owing to raised line 214 according to attitude angle β direction, so can avoid conducting terminal 3 to combine extruding force with the interference of mating holes 211 directly puts on the minimum plastic colloid next door 23 of intensity, preventing that this plastic colloid next door 23 from improperly producing crack or distortion because of pushing, even the scolder that melts when causing electric connector 1 to cross the tin stove infiltrates the short circuit phenomenon that this crack causes 3 of adjacent conductive terminals easily.In addition, utilizing raised line 214 to result to relate to conducting terminal 3 cooperates, can control the contact area of mating holes 211 and conducting terminal 3 by the central angle alpha of regulating raised line 214, and the interference distance a by controlling two relative raised lines 214 with provide conducting terminal 3 and mating holes 211 between suitable coordinate force, so both can guarantee that conducting terminal 3 combined with insulating body 2 firmly, can improve existing electric connector again and cooperate with conducting terminal by the whole medial surface of terminal hole and the undesirable condition of the higher fit tolerance requirement of needs, to reduce the manufacturing cost of electric connector 1.

In addition, what need explanation a bit is, these raised lines 214 are four and are in the through hole 21 that symmetric mode is laid in insulating body 2 in the middle of present embodiment, and in other examples, visual actual conditions and the raised line of right quantity is set, only need the set position of this raised line not on the axial connecting line of two adjacent through holes, the plastic colloid next door that can effectively prevent two adjacent through holes is because of being subjected to improper extruding and deforming even producing the crack, and, be provided with if further raised line is selected the bigger hole wall correspondence position of thickness, make the suffered interference of hole wall be scattered in the thicker zone of this hole wall, the purpose and the effect that can realize the utility model more easily and disclosed in conjunction with extruding force.In addition, raised line or similar cord tissue also can be arranged on the terminal but not through-hole wall, and make this structure also depart from the thinnest part of through-hole wall according to attitude angle β to get final product.

Claims (8)

1. electric connector, it comprises: insulating body which is provided with several from the recessed one-tenth exhausting hole that is provided with of body one sides that insulate; Conducting terminal is contained in the through hole of insulating body; It is characterized in that: be provided with at least one in the through hole of insulating body and protrude from its medial surface suitable thickness, and extend the raised line of equivalent length along the recessed direction of through hole, the normal that the next door that thickness is the thinnest between position deviation two adjacent through holes is set of these raised lines has certain angle, and conducting terminal is accommodated the part that extends in this through hole and is had at least one section can connect with the raised line in the through hole, and the footpath of this section terminal is wider than the through-hole aperture at raised line place place, make whereby both in this place generation interference engagement so that the adhesion of conducting terminal to be provided.

2. electric connector according to claim 1 is characterized in that: this through hole is made up of mating holes and transitional pore, and mating holes is arranged with certain depth in body one side direction that insulate.

3. electric connector according to claim 2 is characterized in that: this mating holes inboard is provided with four raised lines, and this raised line extends to transitional pore and is symmetrically distributed on the mating holes inside circumference along the axis of mating holes.

4. according to claim 1 or 3 described electric connectors, it is characterized in that: this conducting terminal is provided with abutting end and plug end.

5. electric connector according to claim 4 is characterized in that: the abutting end of conducting terminal is arranged in the mating holes, and is provided with a ring-type interference part in the abutting end outer surface, constitutes interference engagement with the raised line with the mating holes inboard.

6. electric connector according to claim 4 is characterized in that: insulating body is provided with several grooves with respect to the another side of the side that is arranged with mating holes.

7. electric connector according to claim 6 is characterized in that: also be provided with the perforation that is communicated with both between transitional pore and this groove.

8. electric connector according to claim 7 is characterized in that: the plug end of terminal is extended via described perforation outside the insulating body to constitute electric connection with circuit board or other electronic components from transitional pore.

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