CN201303072Y - Electric connector - Google Patents

Abstract

The utility model discloses an electrical connector for inserting an electronic card, which at least includes an insulating body, a terminal module, and a cover covering the upper part of the insulating body. A pair of side walls extending forward, the cover body includes a top plate and side plates extending downward from both ends of the top plate and covering the outer surface of the side wall of the insulating body, and the cover body is further provided with shrapnel, and the insulating body is correspondingly provided with grooves, and at the same time , the cover body is also provided with a tearing part in the same direction as the side plate, and the insulating body is correspondingly provided with a narrow and long channel. When the cover body is assembled on the insulating body, the shrapnel is clamped in the groove and prevents the cover body from moving toward the card. The direction is displaced, and the tearing part is accommodated in the long and narrow channel to prevent the cover body from moving further toward the card insertion direction, so that the cover body and the insulating body are stably fixed.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector for electrically connecting electronic components to a circuit board.

【Background technique】

With the rapid development of the electronic industry, mobile phones have become a commonly used electronic portable device, and the electrical connector that electrically connects external electronic components to the main board of the mobile phone is one of the essential components in the mobile phone. Therefore, the above-mentioned electronic Good electrical conduction of the connector plays a vital role in the mobile phone.

The invention patent in mainland China, CN1703808A, filed by Morris Company on October 3, 2003 and published on November 30, 2005, discloses an electrical connector for accommodating electronic cards and connecting electronic cards and circuit boards. Establish a conduction path between them, at least including an insulating body, a conductive terminal accommodated in the insulating body, and a metal cover covering the insulating body, wherein the insulating body includes at least a pair of side walls, and the top of the side walls is set There is a downwardly recessed assembly groove, and the metal cover includes a plate-shaped top plate covering the insulating body and side plates extending vertically downward from both ends of the top plate and covering the side walls of the insulating body, wherein the top plate of the metal cover There is an assembly joint protruding vertically downward. When the metal cover is assembled on the insulating body, the above-mentioned assembly joint is just inserted into the above-mentioned assembly groove of the insulating body, so that the metal cover and the insulating body are fixed together. When the electronic card is inserted, the electrical contacts on the electronic card are electrically connected to the conductive terminals, thereby establishing an electrical conduction path between the electronic card and the circuit board.

In the above-mentioned holding method of the metal cover and the insulating body of the electrical connector, if the assembly joint and the assembly groove adopt interference fit or interference fit, then the assembly of the metal cover and the insulating body will become very difficult, and it is possible Destroy the assembly joint, thereby affecting the holding effect of the metal cover and the insulating body; on the contrary, if the assembly joint and the assembly groove adopt a clearance fit, then the metal cover and the insulating body cannot be well held, especially in During the insertion process of the electronic card, the metal cover may be displaced in the card insertion direction and the card withdrawal direction, especially in the card withdrawal direction, so that the electronic card cannot be in good contact with the conductive terminals.

In view of the above problems, it is necessary to provide an improved electrical connector to solve the above problems.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector, wherein the cover body and the insulating body are held stably, especially during the insertion process of the electronic card, the cover body will not be displaced in the direction of card withdrawal.

In order to achieve the above purpose, the utility model provides an electrical connector for inserting electronic components, which at least includes an insulating body, a terminal module, and a cover covering the insulating body. The insulating body includes a rear wall and a rear wall A side wall extending forward at both ends in the same direction. An insertion space for electronic components is formed between the above-mentioned rear wall and the side wall. The cover body includes a top plate placed above the insulating body and vertically extending downward from both sides of the top plate. The top plate of the cover body is provided with a tearing part in the same direction as the extension direction of the side plate and a shrapnel with an angle of less than 90 degrees with the top plate, and the insulating body is provided with a tearing part to cooperate with and prevent the cover body from being inserted The long and narrow channel that moves further in the direction and the groove that cooperates with the above-mentioned elastic piece and prevents the cover from moving in a direction opposite to the insertion direction.

In order to achieve the above purpose, the utility model further provides an electrical connector for inserting electronic components, which at least includes an insulating body, a terminal module, a cover, and a bearing mechanism for receiving electronic components, wherein the insulating body is provided with oppositely arranged The mounting surface and the upper surface of the insulating body and the cover form an insertion space. The cover is provided with a shrapnel whose extending direction is opposite to the insertion direction of the electronic components. Correspondingly, the insulating body is equipped with Elastic piece and a groove that prevents the cover from moving in the direction opposite to the direction in which the electronic component is inserted.

Compared with the prior art, the electrical connector of the utility model has at least the following advantages: the cover body is provided with elastic pieces, and the insulating body is correspondingly provided with grooves, and the cooperation between the elastic pieces and the grooves prevents the cover body from moving in the direction of withdrawing the card, so , when the electronic card is inserted into the electrical connector, it will not move in the direction of withdrawing the card, so that it can stably contact the terminal module and establish a good electrical conduction path between the electronic card and the circuit board .

【Description of drawings】

Fig. 1 is a three-dimensional assembled view of the electrical connector of the present invention.

Fig. 2 is a three-dimensional exploded view of the electrical connector of the present invention.

Fig. 3 is a perspective view of the insulating body of the electrical connector of the present invention.

Fig. 4 is a perspective view from another angle of the insulating body of the electrical connector of the present invention.

Fig. 5 is a perspective view of the cover body of the electrical connector of the present invention.

Fig. 6 is a perspective view from another angle of the cover body of the electrical connector of the present invention.

Fig. 7 is a sectional view of the electrical connector of the present invention.

【Detailed ways】

The specific implementation of the electrical connector of the present invention will be described in detail below in conjunction with the accompanying drawings.

Please refer to Figures 1 to 6, the electrical connector of the present invention is used to establish an electrical conduction path between the electronic card 9 and the circuit board (not shown), including an insulating body 1, which is respectively assembled in the insulating body 1, a pair of switch terminals 4, a pair of locking elements 2, a holding element 6, a cover 7 fastened above the insulating body 1, a terminal module 3, and a supporting mechanism 5 for carrying an electronic card 9.

The insulating body 1 is composed of a rear wall 11 and side walls 13, 15 extending forward in the same direction from opposite ends of the rear wall 11. In addition, the insulating body 1 includes a mounting surface (not marked) opposite to the circuit board and a mounting surface opposite to the mounting surface. The opposite upper surface (not marked), wherein, the upper surface of the rear wall 11 is provided with a first receiving groove 113 that matches the shape of the switch terminal 4, and the installation surface of the rear wall 11 is provided with a second receiving groove that matches the holding element 6. Groove 117, the mounting surface of a pair of side walls 13,15 is respectively provided with the 3rd receiving groove 135,155 that matches the shape of locking element 2, and the 2nd, the 3rd receiving groove 117,135,155 penetrate each other, in addition The back wall 11 of the insulating body 1 is provided with a receiving portion 111 extending into the space formed between the above-mentioned side walls 13, 15, and the thickness of the receiving portion 111 gradually becomes thinner from one end connected to the back wall 11 to the other end, In this way, it plays a guiding role in the process of assembling the carrying mechanism 5 into the insulating housing 1 .

In addition, in order to make the carrying mechanism 5 be inserted into the insulating body 1 more smoothly, the upper surfaces of the side walls 13 and 15 of the insulating body 1 are provided with eaves 137 extending toward each other. , The inner wall of 15 forms a guide channel 17.

The switch terminal 4 includes first and second switch terminals 41, 42 with substantially the same structure, and each switch terminal 4 includes a base (not marked), a holding portion 415, 425 bent from one end of the base to a right angle, and a base from the base. The other end of the contact portion 411 , 421 is bent and extended, wherein the base portion is provided with a first interference portion (not shown) that interferes with the first receiving groove 113 of the insulating body 1 .

The holding element 6 is assembled into the insulating body 1 from below the insulating body 1, and includes a horizontal portion 61 extending along the direction of the rear wall 11 of the insulating body 1 and arm portions 63, 65 extending forward from both ends of the horizontal portion 61, wherein, The arm portions 63 , 65 and the horizontal portion 61 form an included angle less than 90 degrees and extend opposite to each other.

The locking elements 2 are respectively accommodated in the third receiving grooves 135, 155 of a pair of side walls 13, 15 of the insulating body 1, and each locking element 2 includes: a body part extending along the side walls 13, 15 of the insulating body 1 ( not shown) and a locking portion 21 extending from one end of the main body into the insertion space, wherein the end of the locking portion 21 is provided with an abutment portion (not shown) placed in the third receiving groove 135, 155.

The cover body 7 is made of metal material, and is buckled on the upper surface of the insulating body 1, including a top plate 71 placed above the insulating body 1, and a pair of side plates 73 vertically extending downward from both sides of the top plate 71, wherein Each of the above-mentioned side plates 73 horizontally extends a flat plate portion 75 from its end to the opposite side plate 73. In addition, the flat plate portion 75 is provided with a number of openings (not marked). The connection extends from the flat plate portion 75, and a welding piece 751 is provided in each opening to connect with the circuit board. In addition, the above-mentioned top plate 71, flat plate portion 75, and the rear wall 11 and side walls 13, 15 of the insulating body 1 These together form an insertion space (not shown) for the electronic card 9 .

The terminal module 3 is composed of a signal terminal 33 and a base 31 holding the signal terminal 33, wherein the signal terminal 33 is integrally formed in the base 31, and the signal terminal 33 at least includes an elastic contact portion electrically contacting the electronic card 9 331 and solder tails 333 electrically connected to the circuit board.

The bearing mechanism 5 is in the shape of a basket as a whole, including an outer basket (not marked) and a bearing portion 51 placed in the outer basket for receiving the electronic card 9, wherein the middle part of the bearing portion 51 is hollowed out so that the electronic card 9 and the signal terminal 33 to achieve electrical contact. In addition, recesses 52 are respectively provided on both sides of the carrying mechanism 5 to match the locking portion 21 of the locking element 2 .

Finally, in order to more firmly hold the electrical connector on the circuit board, the mounting surface of the insulating body 1 is provided with a positioning column 115 protruding toward the circuit board, and the switch terminal 4, the locking element 2, and the holding element 6 are respectively provided with the circuit board. board connection solder joints (not marked), so that when the electrical connector is assembled on the circuit board, not only the welding tail 333 of the terminal module 3 will be connected with the circuit board, but also the insulating body 1, the switch terminal 4, the locking The component 2, the holding component 6, and the cover 7 are all connected to the circuit board, so that the electrical connector can be firmly installed on the circuit board.

Please refer to Fig. 3 to Fig. 6 in particular, and in combination with Fig. 7, in order to firmly assemble the cover 7 into the insulator body 1, the cover 7 is provided with a tearing hole extending vertically downward and extending in the same direction as the side plate. Correspondingly, the insulating body 1 is provided with narrow and long slots 133, 153 for accommodating the above-mentioned tearing portion 713 and passing through the end faces of the side walls 13, 15; There is an elastic piece 711 facing the direction of the insulating body 1 and extending in the direction opposite to the card insertion direction. The angle between the elastic piece 711 and the top plate 71 is less than 90 degrees, and the above-mentioned tearing part 713 is compared with the elastic piece 711. The elastic piece 711 Closer to the rear wall 11 of the insulating body 1, corresponding to this, the upper surface of the side walls 13, 15 of the insulating body 1 is provided with inwardly recessed grooves 131, 151, and the bottom surface of the grooves 131, 151 is inclined, in other words In other words, the depth of the above-mentioned grooves 131, 151 gradually decreases from one end adjacent to the narrow and long grooves 133, 153 to the other end, or in other words gradually increases from the end close to the rear wall 11 to the other end, so that when the cover body 7 When buckled on the insulating body 1, because the elastic piece 711 is against the inner wall of the deeper side of the groove 131, 151, so when the cover body 7 tends to be displaced along the insertion direction, because the tearing part 713 is against the inner wall of the groove 131, 151 Then the inner wall of the narrow and long groove 133, 153, therefore, it can not be further displaced, on the contrary, when the cover body 7 is displaced along the direction opposite to the insertion direction, because the elastic piece 711 is against the inner wall of the groove 131, 151 , and its displacement is restricted, so that the cover 7 and the insulating body 1 are held stably. In addition, since the above-mentioned long and narrow channels 133 , 153 penetrate through the end faces of the corresponding side walls 13 , 15 , thereby communicating with the outside world, the operation of assembling the cover body 7 into the insulating body 1 is simple.

The following is a brief introduction to the assembly process of the electrical connector of the present invention: first, the terminal module 3 is installed on the circuit board, and then the insulating body loaded with the switch terminal 4, the holding element 6, the locking element 2, and the cover 7 1 is installed on the circuit board, at this time, inside the insulating body 1, the contact portions 411, 421 of a pair of switch terminals 41, 42 are in contact with each other, and at the same time, the arm portions 63, 65 of the holding element 6 extend into the third receiving groove 135 , 155 and overlaps with the abutting portion at the end of the locking element 2, and for the electrical connector as a whole, it passes through the solder tail 333 of the signal terminal 3, the positioning column 115 on the mounting surface of the insulating body 1, and the locking element 2 , the solder joints at the bottom of the switch terminal 4 and the holding element 6, and the soldering piece 751 on the cover 7 are connected to the circuit board. From the above, it can be seen that the connection between the electrical connector of the present invention and the circuit board adopts two different methods. : The surface is welded and perforated, so it has a better holding effect than conventional electrical connectors.

When the electronic card 9 is to be inserted into the electrical connector, firstly, the electronic card 9 is placed on the carrying portion 51 of the carrying mechanism 5, and then the carrying mechanism 5 carrying the electronic card 9 is placed along the guide groove 17 of the insulating body 1. Inserted into the insertion space, when the locking part 21 of the locking element 2 enters the corresponding recess 52 of the carrying mechanism 5, it means that the electronic card 9 has been completely assembled into the electrical connector and has reached an electrical connection with the signal terminal 33. At this time, the end of the carrying mechanism 5 is placed on the receiving portion 111, and a pair of switch terminals 41, 42 are also separated from each other under the action of the carrying mechanism 5. For the carrying mechanism 5, one end is connected by the signal terminal 33 The other end is supported by the supporting force of the receiving part 111, and the upper part has the downward force of the cover body 7. In this way, the load-carrying mechanism 5 is evenly stressed in the electrical connector, and it is not easy to shake, thereby making the signal The contact of the terminal 33 with the electronic card 9 is also more stable.

In order to connect the cover body 7 and the insulating body 1 firmly, the electrical connector of the utility model is provided with narrow and long grooves 133, 153 sunken downwards from the top surface on the side walls 13, 15 of the insulating body 1, and connected with the narrow and long grooves. The grooves 131, 151 adjacent to the grooves 133, 153 are provided with tearing parts 713 matching the narrow grooves 133, 153 and elastic pieces 711 matching the grooves 131, 151 at the corresponding positions of the cover body 7, and the elastic pieces 711 extends in a direction opposite to the direction in which the electronic card is inserted, and the tearing portion 713 extends in a direction perpendicular to the direction in which the electronic card is inserted. Therefore, when the cover 7 is assembled on the insulating body 1, it will not be damaged when the electronic card is inserted. The direction and the direction opposite to the insertion direction of the electronic card can be fixed, so that the cover 7 and the insulating body 1 are held stably and are not easy to be displaced, and then the cover 7 and the insulating body 1 determine a stable insertion space, When the electronic card is inserted, it can be firmly in contact with the signal terminal 33 .

Finally, it needs to be explained that although in this embodiment, the carrying mechanism 5 carries an electronic card, however, in actual use, any electronic component can be carried according to different requirements.

The above is only one embodiment of the utility model, not all or the only implementation. Any equivalent change to the technical solution of the utility model adopted by those of ordinary skill in the art by reading the specification of the utility model shall be considered as the present invention. covered by the claims of the utility model.

Claims (10)

1. An electrical connector for inserting electronic components, at least including an insulating body, a terminal module, and a cover covering the insulating body, the insulating body includes a rear wall and extends forward in the same direction from opposite ends of the rear wall The side wall of the above-mentioned rear wall and the side wall forms an insertion space for electronic components to be inserted. The cover body includes a top plate placed above the insulating body and side plates extending vertically downward from both sides of the top plate, wherein the cover The top plate of the body is provided with a tearing part in the same direction as the extending direction of the side plate and a shrapnel with an angle of less than 90 degrees with the top plate. The moving narrow and long slot and the groove cooperate with the above-mentioned elastic piece and prevent the cover body from moving in the direction opposite to the insertion direction. 2 . The electrical connector as claimed in claim 1 , wherein the bottom surface of the groove is inclined, and the depth of the groove gradually increases from one end close to the rear wall to the other end. 3. The electrical connector as claimed in claim 1, wherein the long and narrow channel runs through the end surface of the side wall. 4. An electrical connector for inserting electronic components, at least including an insulating body, a terminal module, a cover, and a bearing mechanism for receiving electronic components, the insulating body is provided with a mounting surface and an upper surface oppositely arranged, and the insulating body and An insertion space is formed between the covers, and it is characterized in that: the above-mentioned cover is provided with a shrapnel, and the extension direction of the shrapnel is opposite to the insertion direction of the electronic component, and correspondingly, the insulating body is provided with accommodating the above-mentioned shrapnel and preventing the cover from A groove that moves in the opposite direction to the direction in which an electronic component is inserted. 5. The electrical connector as claimed in claim 4, wherein the depth of the groove gradually decreases from one end close to the end surface of the side wall to the other end. 6. The electrical connector according to claim 5, wherein the cover body is further provided with a tearing portion, the insulating body is provided with a long and narrow channel for accommodating the tearing portion, and the long and narrow channel runs through the insulating body The end face communicates with the outside world. 7. The electrical connector according to claim 4, wherein the insulating body is further provided with a support portion for supporting the carrying mechanism. 8. The electrical connector according to claim 4, wherein a switch terminal is further provided on the insulating body, and the switch terminal realizes contact or disconnection under the action of the supporting mechanism. 9. The electrical connector according to claim 4, wherein the cover body comprises a top plate, a side plate extending downward from both ends of the top plate, and another side plate opposite to it from the end of the side plate The flat plate portion extending horizontally, the flat plate portion, the insulating body, and the top plate of the cover jointly form a guiding channel of the supporting mechanism. 10. The electrical connector according to claim 4, wherein the electrical connector further comprises a pair of locking elements and a holding element, the locking element is provided with a locking portion for locking the carrying mechanism, and The holding element is in contact with the locking element.

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