CN104779469A - Electrical connector - Google Patents

Abstract

The invention relates to an electrical connector comprising an insulating body, a plurality of conductive terminals fixed to the insulating body, and a pair of light emitting diodes. The insulating body comprises a butt joint surface, two side walls, and an accommodating cavity which is formed by penetrating the butt joint surface. The pair of light emitting diodes is laterally arranged on the two side walls. Each light emitting diode comprises a lamp body and welding pins which extend outwardly from the lamp body. The two side walls of the insulating body are respectively provided with a clamping portion which extends laterally and outwardly. Each clamping portion comprises two elastic arms which are oppositely arranged, clamping hook portions which are arranged at the tail ends of the two elastic arms, and a clamping groove which is enclosed by the two elastic arms and the clamping hook portions and is used for clamping the corresponding welding pin.

Description

electrical connector

technical field

The invention relates to an electric connector, especially an electric connector mounted on a circuit board.

Background technique

With the rapid development of electronic technology, electrical connectors are widely used in electronic products to exchange information, data, etc. with external devices. The electrical connector generally includes an insulating body, terminals accommodated in the insulating body, and a shell covering the outer side of the insulating body. The soldering legs of the terminals protrude from the insulating body to be soldered on the circuit board.

The RJ 45 connector is a communication connector used to transmit data. In order to display its working status, the RJ 45 connector usually also includes a light emitting diode. However, the fixing method between the light-emitting diode and the insulating body of the existing electrical connector is not firm, and the two are easy to shake after installation, resulting in unstable communication. In addition, the assembly between the light-emitting diode and the insulating body is complicated.

In view of this, it is necessary to further improve the existing electrical connectors to solve the above problems.

Contents of the invention

The object of the present invention is to provide an electrical connector, which is easy to assemble and securely fixed between the light emitting diode and the insulating body.

In order to achieve the above purpose, the present invention adopts the following technical solutions: an electrical connector, comprising:

An insulating body, the insulating body includes a butt surface, two side walls and a receiving cavity formed through the butt surface;

a plurality of conductive terminals fixed on the insulating body, each conductive terminal includes a contact portion extending into the receiving cavity; and

A pair of light-emitting diodes, the pair of light-emitting diodes are installed laterally on the two side walls of the insulating body, each light-emitting diode includes a lamp body and welding feet extending outward from the lamp body;

The two side walls of the insulating body are provided with a laterally outwardly extending clamping portion, and the clamping portion includes two opposite elastic arms, a hook portion located at the end of the two elastic arms, and a clamping portion formed by the two elastic arms. The arm and the hook portion jointly enclose a clamping groove formed to clamp the welding leg.

As a further improvement of the present invention, the hook portion is provided with a guiding slope for guiding the welding leg into the clamping groove when the welding leg is assembled.

As a further improvement of the present invention, the welding legs include a first welding leg and a second welding leg arranged in two rows, and the clamping portion includes a first clamping portion and a clamping portion for clamping the first soldering leg. The second clamping portion of the second welding leg.

As a further improvement of the present invention, the first clamping portion includes two first elastic arms disposed opposite to each other, a first hook portion located at the ends of the two first elastic arms, and the two first elastic arms and the The first hook portion is jointly formed to surround the first clamping groove formed to clamp the first welding leg; the second clamping portion includes two second elastic arms that are oppositely arranged, and are located on the two second elastic arms. The second hook portion at the end of the second hook portion, and the second clamping groove formed by the two second elastic arms and the second hook portion to hold the second welding leg; the two first The elastic arms are arranged up and down, and the two second elastic arms are arranged front and back.

As a further improvement of the present invention, the first welding leg includes a first extension formed by extending horizontally and a first bent portion formed by bending and extending downward from the first extension, and the first extension is formed by clamped in the first clamping groove; the second welding leg includes a second extension formed by extending horizontally and a second bent portion formed by bending and extending downward from the second extension, the The second bending part is clamped in the second clamping groove.

As a further improvement of the present invention, each side wall of the insulating body is provided with a third clamping groove for accommodating the first bending portion, and the third clamping groove is located behind the second clamping groove end.

As a further improvement of the present invention, the first bent portion is concavely formed with a groove from its rear end surface, and the insulating body is provided with a protrusion protruding outward to match the groove.

As a further improvement of the present invention, each of the side walls includes a storage slot for storing the lamp body and an upper limit block and a lower limit block adjacent to the storage slot, and the front end of the lamp body is recessed to form an upper limit slot, The lower limit groove, the upper limit block and the lower limit block cooperate with the upper limit groove and the lower limit groove.

As a further improvement of the present invention, the insulating body further includes a support plate protruding outward from the side wall, the first extension portion and the second extension portion are separated by the support plate; The support plate is provided with a fastening block, and the electrical connector also includes a metal shell covering the insulating body, and a fastening slot for matching with the fastening block is arranged on the metal shell.

As a further improvement of the present invention, the lamp body is arranged between the insulating body and the metal casing, the metal casing includes a front casing that shields the abutment surface, and the front casing is provided with a The lamp body is exposed to the external opening.

In the electrical connector of the present invention, the insulating body is provided with a clamping portion for clamping the welding pin of the LED, so that the LED is firmly fixed, not easy to shake, and the communication is stable. In addition, the pair of light-emitting diodes are installed laterally on the two side walls of the insulating body, so that the assembly position is easy to observe, and the assembly is convenient.

Description of drawings

Fig. 1 is a perspective view of the electrical connector of the present invention.

FIG. 2 is a partially exploded perspective view of FIG. 1 .

FIG. 3 is an exploded perspective view of FIG. 1 .

FIG. 4 is a partial perspective assembly view after the insulating body and the conductive terminals in FIG. 3 are assembled.

Fig. 5 is a bottom view of the electrical connector of the present invention, wherein the metal shell is not shown, and a pair of LEDs are separated from the insulating body.

Fig. 6 is a partial perspective view of the electrical connector of the present invention, in which the metal shell is not shown.

FIG. 7 is a partially enlarged view of FIG. 6 .

Detailed ways

Please refer to Fig. 1, the electrical connector 100 of the present invention (in the illustrated embodiment of the present invention is an RJ 45 socket electrical connector) is used to be welded to a circuit board (not shown) to be electrically connected to a plug connector (not shown).

2 and 3, the electrical connector 100 includes an insulating body 1, a number of conductive terminals 2 fixed on the insulating body 1, a pair of light emitting diodes 3 mounted on the insulating body 1, A pair of fool-proof sheets 4 and a metal shell 5 buckled on the insulating body 1 .

Each LED 3 includes a lamp body 31 and a welding foot 32 extending outward from the lamp body 31 . The front end of the lamp body 31 is recessed to form an upper limiting groove 311 and a lower limiting groove 312 . The soldering pins 32 include first soldering pins 321 and second soldering pins 322 arranged in two rows. The first welding leg 321 includes a first extending portion 3211 extending horizontally and a first bending portion 3212 extending downward from the first extending portion 3211 . A groove 3213 is recessed from the rear end surface of the first bending portion 3212 . The second welding leg 322 includes a second extending portion 3221 extending horizontally and a second bending portion 3222 extending downward from the second extending portion 3221 .

The insulating body 1 includes a top wall 11 , a bottom wall 12 , two side walls 13 connecting the top wall 11 and the bottom wall 12 , a docking surface 14 at the front end, and a receiving cavity 15 formed through the docking surface 14 . The bottom wall 12 defines a pair of receiving grooves 121 for receiving the fool-proof sheet 4 . The accommodating cavity 15 is used for accommodating the electrical plug connector so as to achieve electrical connection with the conductive terminals 2 .

3 to 7, each side wall 13 includes a storage slot 131 for accommodating the LED 3, an upper limit block 132 adjacent to the storage slot 131, a lower limit block 133, and a first card. The holding part 134 and the second holding part 135. The first clamping portion 134 and the second clamping portion 135 are collectively referred to as clamping portions. The receiving groove 131 is located outside the side wall 13 and penetrates the mating surface 14 forward. The first clamping portion 134 includes two first elastic arms 1341 opposite to each other, a first hook portion 1342 located at the ends of the two first elastic arms 1341 , and the two first elastic arms 1341 and the first elastic arms 1341 A hook portion 1341 is jointly formed to surround a first clamping groove 1343 formed to clamp the first welding leg 321 . The first hook portion 1342 is provided with a first guiding slope 1344 located outside it. The second clamping portion 135 includes two second elastic arms 1351 opposite to each other, a second hook portion 1352 located at the ends of the two second elastic arms 1351, and the two second elastic arms 1351 and the first The two hook portions 1352 jointly surround the second clamping groove 1353 formed to clamp the second welding leg 322 . The second hook portion 1352 is provided with a second guiding slope 1354 on its outer side. The first guiding slope 1344 and the second guiding slope 1354 are collectively referred to as guiding slopes. The first locking portion 134 is perpendicular to the second locking portion 135 , and the first locking portion 134 is located above the rear end of the second locking portion 135 . The two first elastic arms 1341 are arranged up and down, and the two second elastic arms 1351 are arranged front and back.

In addition, each side wall 13 of the insulating body 1 is provided with a third locking groove 136 for receiving the first bending portion 3212 . The third clamping slot 136 is located at the rear end of the second clamping slot 1353 and is flush with the second clamping slot 1353 in the front-rear direction. The insulating housing 1 is provided with a protrusion 137 protruding outward to match the groove 3213 . The protrusion 137 is adjacent to the third locking groove 136 . The insulating housing 1 further includes a support plate 138 protruding outward from the side wall 13 , and the first extension portion 3211 and the second extension portion 3221 are separated by the support plate 138 . The support plate 138 is provided with a fastening block 1381 .

2 and 3, each conductive terminal 2 includes a fixed portion 21 held on the insulating body 1, a contact portion 22 extending obliquely from one end of the fixed portion 21, and a contact portion 22 extending from the fixed portion. The other end of 21 extends the welding end 23. The contact portion 22 extends into the accommodating cavity 15 to connect with the electrical plug connector. The soldering end 23 extends out of the insulating body 1 for soldering on the circuit board.

The fool-proof sheet 4 is installed on the bottom wall 12 from bottom to top, and the fool-proof sheet 4 protrudes into the receiving cavity 15 and corresponds to the receiving groove 121 respectively. The fool-proof sheet 4 can prevent unmatched electrical plug connectors from being inserted into the receiving cavity 15 .

The metal shell 5 is shielded on the insulating body 1 , and the metal shell 5 is provided with a fastening groove 51 that cooperates with the fastening block 1381 . In addition, the lamp body 31 is arranged between the insulating body 1 and the metal casing 5, and the metal casing 5 includes a front casing 52 that covers the docking surface 14, and the front casing 52 is provided with The opening 521 that exposes the lamp body 31 to the outside.

Please refer to FIG. 5 in conjunction with FIG. 2 , FIG. 3 and FIG. 7 . During assembly, the LED 3 is assembled into the insulating body 1 from both sides, which is convenient for assembly. Wherein, the lamp body 31 is accommodated in the receiving groove 131 . The upper limit block 132 and the lower limit block 133 cooperate with the upper limit groove 311 and the lower limit groove 312 to clamp the lamp body 31 . At the same time, the first extension part 3211 stretches the first elastic arm 1341 outwards under the guidance of the first guiding slope 1344, and is finally locked in the first clamping groove 1343, At this time, the first hook portion 1342 can prevent the first welding leg 321 from detaching from the insulating body 1 . Meanwhile, the first bending portion 3212 is received in the third locking groove 136 . Under the guidance of the second guiding slope 1354, the second bending portion 3222 spreads the second elastic arm 1351 outward, and is finally locked in the second clamping groove 1353. At this time, the second hook portion 1352 can prevent the second welding leg 322 from detaching from the insulating body 1 . The first soldering leg 321 and the second soldering leg 322 are finally attached to the two side walls 13 of the insulating body 1 .

Compared with the prior art, in the present invention, the insulating body 1 is provided with a clamping portion for clamping the soldering pin 32 of the LED 3, so that the LED 3 is firmly fixed, not easily shaken, and the communication is stable. In addition, the light-emitting diode 3 of the present invention is assembled on the insulating body 1 by two sides, which is convenient for observing the assembly position and convenient for assembly.

In particular, it should be pointed out that for those skilled in the art, the equivalent changes to the present invention made under the teaching of the present invention should still be included in the claimed scope of the patent scope of the present application.

Claims (10)

1. an electric connector, comprising:

Insulating body, the host cavity that described insulating body comprises interface, two side and runs through this interface and formed;

Some conducting terminals, be fixed on described insulating body, each conducting terminal comprises the contact site extended in described host cavity; And

A pair light-emitting diode, this is installed on the two side of described insulating body to light-emitting diode side direction, and each light-emitting diode comprises lamp body and from the outward extending welding foot of described lamp body;

It is characterized in that: the two side of described insulating body is provided with the outward extending holding section of side direction, described holding section comprise two elastic arms be oppositely arranged, the end being positioned at this two elastic arm hook part and jointly enclosed the holding tank being formed to hold described welding foot by this two elastic arm and described hook part.

2. electric connector according to claim 1, is characterized in that: described hook part is provided with the guide ramp be directed into by described welding foot when the assembling of described welding foot in described holding tank.

3. electric connector according to claim 1, it is characterized in that: described welding foot comprises the first welding foot and the second welding foot that arrange in two rows, and described holding section comprises the first holding section holding described first welding foot and the second holding section holding described second welding foot.

4. electric connector according to claim 3, is characterized in that: described first holding section comprise two first elastic arms be oppositely arranged, the end being positioned at this two first elastic arm the first hook part and jointly enclosed the first holding tank being formed to hold described first welding foot by this two first elastic arm and described first hook part; Described second holding section comprise two second elastic arms be oppositely arranged, the end being positioned at this two second elastic arm the second hook part and jointly enclosed the second holding tank being formed to hold described second welding foot by this two second elastic arm and described second hook part; Described two first elastic arms are arranged up and down, arrange before and after described two second elastic arms.

5. electric connector according to claim 4, it is characterized in that: described first welding foot comprises the first extension of horizontal-extending formation and bends the first bending part extended to form from described first extension downwards, and described first extension is trapped in described first holding tank; Described second welding foot comprises the second extension of horizontal-extending formation and bends the second bending part extended to form from described second extension downwards, and described second bending part is trapped in described second holding tank.

6. electric connector according to claim 5, is characterized in that: each sidewall of described insulating body is provided with the 3rd support slot of described first bending part of collecting, and described 3rd support slot is positioned at the rear end of described second holding tank.

7. electric connector according to claim 5, is characterized in that: described first bending part is from end face concave shaped Cheng Youyi groove thereafter, and described insulating body is provided with the projection outwards protruded out with described fit depressions.

8. electric connector according to claim 1, it is characterized in that: each sidewall described comprises upper limit position block, the lower position block of accommodating groove and the neighbour described accommodating groove receiving described lamp body, the front end of described lamp body has been recessed to form upper limit position groove, lower limit groove, and described upper limit position block, lower position block match with described upper limit position groove, lower limit groove.

9. electric connector according to claim 5, is characterized in that: described insulating body also comprises the supporting bracket outwards protruding out formation from described sidewall, and described first extension and described second extension are separated by described supporting bracket; Described supporting bracket is provided with a holding block, and described electric connector also comprises the metal shell covering described insulating body, described metal shell is provided with the fixing slot coordinated with described holding block.

10. electric connector according to claim 9, it is characterized in that: described lamp body is arranged between described insulating body and described metal shell, described metal shell comprises the procapsid covering described interface, described procapsid is provided with described lamp body is exposed to outside peristome.