CN202487851U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector which comprises an insulating body, a plurality of terminals and a metal housing, wherein the insulating body comprises a base part, the upper end of the front surface of the base part protrudes forwards for forming a tongue plate, a terminal groove penetrating through the back end of the base part is formed backwards on the lower surface of the tongue plate, the lower part of the back surface of the base part protrudes backwards for forming a base plate, and clamping blocks are respectively outwards arranged at the lower ends of the two sides of the base plate; the plurality of the terminals are assembled in the terminal groove of the insulating body; and the metal housing is covered outside the insulating body and comprises a top plate, a bottom plate and two side plates, wherein the backward extension length of the bottom plate is greater than the length of the top plate and the length of the two side plates, the lower ends of the side plates extend backwards and upwards for forming clamping legs, a clamping groove is surrounded by the back end of the bottom plate and the clamping legs, and the clamping legs and the clamping groove are clamped with the clamping blocks of the insulating body for firmly covering the metal housing outside the insulating body, so that the insulating body can be effectively prevented from deflecting or shaking relative to the metal housing, and the stable contact of a connecting system can be further ensured. Furthermore, the electric connector has the advantages of simplified structure, simple design and convenience in assembly.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector, particularly relates to a kind ofly preventing the relative metal shell yaw motion of insulating body or rocking and cause contacting unsettled electric connector.

Background technology

Existing a kind of electric connector comprises insulating body, plurality of terminals and housing.Insulating body has a base portion, and the base portion front end protrudes out forward and forms a hyoplastron, and the hyoplastron lower surface offers the terminal groove that runs through the base portion rear end.Plurality of terminals is inserted in the terminal groove of insulating body.Housing is coated on the insulating body outside.

But above-mentioned electric connector is because hyoplastron stretches out fixing by between base portion and housing only, phenomenon such as the yaw motion of the relative housing of insulating body in use takes place easily or rock, and cause the connected system contact unstable from the base portion front end.

The utility model content

The purpose of the utility model is that the deficiency to above-mentioned prior art provides a kind of and has the relative metal shell yaw motion of the insulating body of preventing or rock and cause connected system to contact unsettled electric connector.

For realizing above-mentioned purpose, a kind of electric connector that the utility model provided comprises an insulating body, a plurality of terminals and a metal shell.Insulating body has a base portion, and the base front surface upper end protrudes out forward and forms a hyoplastron, and the hyoplastron lower surface offers the terminal groove that runs through the base portion rear end backward, and surperficial bottom protrudes out backward and forms a substrate behind the base portion, and lower end, substrate both sides outwards convexes with fixture block respectively.Plurality of terminals is installed in the terminal groove of insulating body.Metal shell is covered on outside the insulating body; Have top board, base plate and biside plate; Wherein the length that extends back of base plate is greater than the length of top board and biside plate; The side plate lower end backward and extend upward to form and hold pin, base plate rear end with hold bottoms and become a draw-in groove, hold pin and draw-in groove and engage with the fixture block of insulating body.

As stated, the utility model electric connector relies on the base portion at insulating body to protrude out substrate backward, and the draw-in groove of being set up by fixture block that is provided with on the substrate and metal shell rear portion holds mutually; Firmly to be covered on metal shell outside the insulating body; Thereby effectively prevent the relative metal shell deflection of insulating body or rock, and then guarantee the connected system contact stabilization, and this electric connector structure is simplified; Design simple and easy, easy to assembly.

Description of drawings

Fig. 1 is the stereogram of the preferred embodiment of the utility model electric connector.

Fig. 2 is the three-dimensional exploded view of the preferred embodiment of electric connector shown in Figure 1.

Fig. 3 is the three-dimensional exploded view of another angle of electric connector shown in Figure 1.

Each description of reference numerals is following among the figure.

Insulating body 10 base portions 11

Hyoplastron 12 terminal grooves 121

Interfere groove 122 substrates 13

Support slot 131 fixing slots 132

Fixture block 133 grooves 134

Terminal 20 holding parts 21

Elasticity arm 22 contact sites 23

Holding section 24 weld parts 25

Metal shell 30 top boards 31

Shell fragment 311 base plates 32

Protuberance 321 cards 322

Side plate 33 welding foots 331

Hold pin 332 catch 333

Draw-in groove 334.

Embodiment

By the technology contents, the structural feature that specify the utility model, realized purpose and effect, know clearly below in conjunction with execution mode and conjunction with figs. and give explanation.

See also Fig. 1 to Fig. 3, the utility model electric connector comprises an insulating body 10, plurality of terminals 20 and a metal shell 30.

In the present embodiment; Said insulating body 10 has a vertical tabular base portion 11; Base portion 11 front surface tops protrude out forward and form a hyoplastron 12; Hyoplastron 12 lower surfaces offer the terminal groove 121 that runs through base portion 11 rear ends backward, and surface, base portion 11 back is stretched to form in the further expansion of terminal groove 121 afterbodys and interfered groove 122.Surperficial bottom, base portion 11 backs protrudes out backward and forms a substrate 13, and substrate 13 upper surface corresponding end pilot trench 121 are concaved with some support slots 131 at interval, and the further expansion in support slot 131 bottoms is stretched and formed fixing slot 132.Lower end, substrate 13 both sides outwards convexes with fixture block 133 respectively, and substrate 13 lower surface rear ends offer two grooves 134 that run through backward, and groove 134 front ends convex with block (figure does not show).

Terminal 20 has flat holding parts 21; Holding parts 21 front ends bending downwards forward extend to form an elastic arm 22; Elastic arm 22 front ends further bending extend to form a contact site 23; Holding parts 21 rear ends bend straight down to extend back again and form holding section 24, and holding section 24 backward and upwards bending is extended the level bending again and extended to form weld part 25.Terminal 20 is installed on the insulating body 10; Particularly, holding parts 21 is fixed in interferes in the groove 122, and elastic arm 22 inserts in the terminal groove 121 of insulating body 10 with contact site 23; Holding section 24 is fastened in the fixing slot 132, and weld part 25 stretches out substrate 13 upper surfaces of insulating body 10.

Metal shell 30 is covered on outside the insulating body 10, has top board 31, base plate 32 and biside plate 33, and wherein the length that extends back of base plate 32 is greater than the length of top board 31 and biside plate 33.Inwardly dash on the top board 31 of metal shell 30 and be provided with shell fragment 311; Inwardly convex with a protuberance 321 respectively on the base plate 32 front end both sides inner surfaces; Both sides, base plate 32 rear end inwardly dash and are provided with the card 322 that extends forward, and shell fragment 311 all is used for interfering chucking with butt connector (figure does not show) with protuberance 321.In addition; Be provided with welding foot 331 to outwash on the side plate 33 of metal shell 30; Side plate 33 lower ends backward and extend upward to form and hold pin 332; Hold pin 332 and be welded in the external circuit board (figure do not show) and go up with the location, side plate 33 rear upper end bend inwards and form a catch 333, base plate 32 rear ends with hold pin 332 and surround a draw-in groove 334.

During the assembling of the utility model electric connector, earlier terminal 20 is installed in the terminal groove 121 of insulating body 10, again metal shell 30 is covered on outside the insulating body 10; Catch 333 retainings are held in base portion 11 rear ends of insulating body 10; Fixture block 133 is clamped in the draw-in groove 334, and card 322 is fastened in and engages in the groove 134 and with block preventing that insulating body from retreating, thereby insulating body 10 firmly is sticked in the metal shell 30; So far, accomplish the assembling of this electric connector.

In sum, the utility model electric connector relies on the base portion 11 at insulating body 10 to protrude out substrate 13 backward, and is held mutually with draw-in groove 334 and the card 322 that metal shell 30 rear portions are set up by the fixture block 133 and the groove 134 that are provided with on the substrate 13; So that metal shell 30 firmly is covered on outside the insulating body 10; Thereby effectively prevent insulating body 10 relative metal shell 30 deflections or rock, and then guarantee the connected system contact stabilization, and this electric connector structure is simplified; Design simple and easy, easy to assembly.

Claims (4)

1. an electric connector is characterized in that: comprise an insulating body, a plurality of terminals and a metal shell; Said insulating body; Have a base portion, the base front surface upper end protrudes out forward and forms a hyoplastron, and the hyoplastron lower surface offers the terminal groove that runs through the base portion rear end backward; Surperficial bottom protrudes out backward and forms a substrate behind the base portion, and lower end, substrate both sides outwards convexes with fixture block respectively; Plurality of terminals is installed in the terminal groove of insulating body; Metal shell is covered on outside the insulating body; Have top board, base plate and biside plate; Wherein the length that extends back of base plate is greater than the length of top board and biside plate; The side plate lower end backward and extend upward to form and hold pin, base plate rear end with hold bottoms and become a draw-in groove, hold pin and draw-in groove and engage with the fixture block of insulating body.

2. electric connector as claimed in claim 1; It is characterized in that: formation interference groove is stretched in further expansion of terminal groove afterbody in the surface behind the said base portion; Upper surface of base plate corresponding end pilot trench is concaved with some support slots at interval, and the formation fixing slot is stretched in support slot bottom further expansion; Said terminal has flat holding parts; Holding parts front end bending downwards forward extends to form an elastic arm; Elastic arm front end further bending extends to form a contact site, and the holding parts rear end bends straight down to extend back again and forms the holding section, and holding section backward and slightly upwards bending is extended the level bending again and extended to form weld part; Holding parts is fixed in interferes in the groove; Elastic arm and contact site insert in the terminal groove of insulating body, and the holding section is fastened in the fixing slot, and weld part stretches out the upper surface of base plate of insulating body.

3. electric connector as claimed in claim 1; It is characterized in that: said base lower surface rear end offers two grooves that run through backward; And the groove front end convexes with block; The base plate rear end both sides of said metal shell inwardly dash and are provided with the card that extends forward, and card is fastened in the groove and with block and engages.

4. electric connector as claimed in claim 3 is characterized in that: inwardly dash on the said metal shell top board and be provided with shell fragment, inwardly convex with a protuberance respectively on the inner surface of base plate front end both sides.

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