CN2355458Y - High density electric connector - Google Patents

Abstract

The utility model relates to a high-density electrical connector, which is mainly provided with components such as terminals, an insulating body, and a shielding shell. In addition, the electrical connector is provided with a clamping device, and the covering housing can be stably clamped on the insulating body through mutual cooperation and clamping. The buckle devices are respectively located on the two opposite side walls of the shielding shell and the insulating body, and are arranged as a pair of bayonet sockets and holding bodies that can be interlocked with each other. Through their mutual cooperation, the shielding shell can be smoothly clamped on the insulating body on, and prevent the shielding shell from being separated from the insulating body or springing out when the electrical connector is plugged in or out.

Description

High Density Electrical Connector

The utility model relates to a high-density electrical connector, in particular to a shielding device clamped outside the high-density electrical connector.

In order to realize signal or power transmission in general electronic devices, various electrical connectors are usually used to complete the connection between internal components of the electronic device or between the electronic device and other systems. Electrical connectors are usually composed of terminals and insulating body, but in order to protect the terminals from electromagnetic interference from the outside or nearby electronic components in the insulating body, a shielding device can be further provided outside the insulating body to achieve the effect of electromagnetic shielding. The shielding device is usually made of a metal shell covering the insulating body, and a buckling device is required so that the shielding shell can be locked on the insulating body of the electrical connector. Please refer to China Taiwan Patent Application No. 84207642 for the patent related to this case. The existing clamping device includes clamping holes on the two side walls of the shielding housing and flanges on the two side walls of the insulating body. Wherein the clamping hole is located on the thin metal plate integrally extending from the side wall of the shielding case along the extension direction of the side wall, and the receiving portion is a convex structure protruding from the surface of the two side walls of the insulating body to its two sides. When assembling, first cover the shielding shell on the insulating body, and then slightly open the side wall of the shielding shell with the clamping hole to pass over the receiving part, so that the receiving parts on both sides of the insulating body can be inserted into the shielding shell It can be fixed in the card hole of the body. However, in this fixing method, the two opposite sides used for clamping on the shielding shell must first be pulled apart slightly in the corresponding away direction, so that the metal sheet at the extended end of the shielding shell can pass through the receiving part and be clamped on it by the clamping hole. In this way, the shielding shell will be slightly stretched due to the bending stress and will not be easy to recover, thereby affecting the stability and reliability of the clamping hole clamped on the receiving portion. Furthermore, since the shielding shell must bear the friction force generated by frequent plugging and unplugging, its holding along the direction of docking and plugging must be very good to prevent it from coming out during the docking process, but the existing structure is equipped with a clamping device At the same time, it is not set on the same plane where the plugging friction force is located, so it can only keep the shielding shell from moving up and down perpendicular to the plugging direction, but cannot keep the shielding shell firmly in the original plugging position , thereby easily causing the engaging device and the shielding shell to loosen.

The purpose of this utility model is to provide a high-density electrical connector, which has a clamping device with a symmetrical buckling effect, which can firmly and quickly clamp the shielding shell on the insulating body, and the shielding shell can be inserted and pulled out along the butt joint. The direction is strengthened and fixed, which can resist strong force and ensure the structural stability of the electrical connector.

The purpose of this utility model is achieved in this way: the high-density electrical connector mainly includes an insulating body, a conductive terminal, a shielding shell and a docking guide device, and its main feature is that the corresponding positions of the shielding shell and the two side walls of the insulating body are respectively provided with The clamping device has several notches on the bottom edge of the two side walls of the shielding shell, and several bayonets are integrally extended from these gaps to the side walls, and the insulating body is integrally protruded at the position corresponding to the bayonet of the shielding shell. A number of clamping bodies are integrally provided with a thick portion and a thin portion, and the thin portion of the clamping bodies is disposed adjacent to the side wall of the insulating body, and the thick portion is disposed away from the side wall of the insulating body. The outer diameter of these bayonets is equivalent to the outer diameter of the detailed part of the holding body and smaller than the outer diameter of the thick part. The detailed part of the holding body slides into the bayonet through the gap, and the limitation of the diameter of the bayonet and the thick part of the holding body prevents shadowing. The body moves up and down along the plug-in direction and springs outward to both sides, which can achieve the purpose of holding the shielding shell on the insulating body.

Due to the adoption of the above solution, the shielding shell can be firmly fixed on the insulating body, and the shielding shell will not move up and down along the connector plug-in and pull-out direction and bounce outward to both sides.

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a three-dimensional exploded view of the high-density electrical connector of the present invention.

Fig. 2 is a partially exploded perspective view of the high-density electrical connector of the present invention.

Fig. 3 is a three-dimensional assembled view of the high-density electrical connector of the present invention.

Please refer to Fig. 1, the electrical connector of the utility model is mainly provided with components such as a first insulating body 1, a second insulating body 2, a shielding case 3, a guide post 4 and a terminal 5, wherein the first insulating body 1 is vertically Extending in a long shape, one side is set as the mounting surface 10, and the opposite side is set as the joint surface 11. Several conductive terminals 5 are divided into two rows and run through the first insulating body 1, and one end extending out of the mounting surface 10 is set as a contact end 51 , and one end extending out of the joint surface 11 is further bent in a direction away from the joint to form the joint end 52 . Since the electrical connector of the present invention is provided with terminals 5 arranged in high density, in order to make the terminals 5 have accurate positioning in the first insulating body 1, the first insulating body 1 is manufactured by secondary injection molding. In the first injection molding process, the terminal is partially formed to position the terminal, and then the terminal 5 and the first insulating body 1 are combined into one body through the second injection molding. The two opposite sides of the first insulating body 1 adjacent to the installation surface 10 are set as parallel sidewalls 12, and a plurality of columnar clamping bodies 121 are integrally protruded from the positions near the joint surface 11 of the two sidewalls 12. , and the clamping body 121 includes a thin portion 1211 adjacent to the side wall 12 and a relatively enlarged thick portion 1212 away from the side wall 12, the outer diameter of the thin portion 1211 is smaller than the outer diameter of the thick portion 1212, these clamping bodies 121 can Cooperate and hold with the holding device provided correspondingly to the shielding shell 3 (details will be described later). Furthermore, seat bodies 13 are respectively symmetrically provided on opposite ends of the first insulating body 1 in the longitudinal direction, and the two seat bodies 13 are respectively symmetrically provided with the mounting surface 10 toward the joint surface 11 along the direction parallel to the terminal arrangement. The guide hole 131 is recessed to a certain depth, and the side surface of the seat body 13 adjacent to the joint surface 11 is integrally provided with a convex portion 132 extending away from the first insulating body 1, and the convex portion 132 is connected to both sides of the first insulating body 1. Inserting holes 133 penetrating through the protrusions 132 are symmetrically opened at appropriate positions between the walls 12 . The second insulator body 2 corresponds to the first insulator body 1 and is also elongated. One side is set as a butt joint surface 21, and the opposite side is set as a mating surface 22. A butt joint groove 23 protrudes upward from the butt joint surface 21. A plurality of terminal accommodating holes 231 are defined on two opposite inner side walls of the mating groove portion 23 , and these accommodating holes 231 can penetrate to the mating surface 22 of the second insulating housing 2 . The two ends of the second insulating body 2 are further integrally provided with receiving parts 24, and the side of the receiving part 24 adjacent to the docking groove part 23 is provided with a square groove 241, the center of which corresponds to the position of the guide hole 131 of the first insulating body 1. Fitting guide holes 2411 are provided, and these fitting guide holes 2411 can penetrate to the mating surface 22 of the second insulator body 2, and a positioning part 2412 protrudes integrally from the penetration of the mating surface 22, and the positioning part 2412 has a matching guide hole 131 has a considerable outer diameter and can be sleeved in it. In addition, a recess 2413 is further recessed from the side edge of the groove 241 close to the mating groove portion 23 . The shielding shell 3 is a cover-shaped body corresponding to the shape of the first insulating shell 1 and the second insulating shell 2, and the shielding shell 3 is provided in accordance with the outer contour shape of the docking groove 23 of the second insulating shell 2. The cover 31 has side wall plates 32 extending in parallel to the direction away from both sides of the cover 31, and the same number of bayonet openings 33 are opened on the two side wall plates 32 corresponding to the positions of the first insulating body 1 clamping body 121, The inner diameter of the bayonet socket 33 is equivalent to the outer diameter of the clamping body detail 1211, and a "V"-shaped inlet 331 is further provided at the opening of each bayonet socket 33, and these "V"-shaped inlets 331 and the bayonet socket 33 A neck 3311 with an opening size smaller than the outer diameter of the detail 1211 of the clamping body 121 is provided at the joint. At the two side corners of the two side wall plates 32, there are protruding prongs 34 of a considerable length, and at the two ends of the docking groove part 31, the positions corresponding to the recesses 2413 of the grooves 241 of the second insulating body 2 are opposite to each other. A piece 35 in an "L" shape and corresponding to the shape of the recess 2413 is provided. In addition, the guide post 4 is a cylindrical body extending in a columnar shape, its outer diameter is slightly larger than the inner diameter of the guide hole 131 of the first insulating body 1, and a boss is integrally protruded on the upper end of the guide post 4 corresponding to the shape of the square groove 241 41, and at the end of the guide post near the boss 41, a pointed butt end 42 is provided.

Please refer to Fig. 2 and Fig. 3 again. When the electrical connector of the present invention is assembled, the positioning part 2412 of the second insulating body 2 is inserted into the guide hole 131 of the first insulating body 1, so that the second insulating body 2 The mating surface 22 of the first insulating body 1 is matched with the mounting surface 10 of the first insulating body 1, and at the same time the contact end 51 of the terminal 5 is correspondingly accommodated in the terminal receiving groove 231 of the mating groove portion 23 of the second insulating body 2. Thereafter, the shielding shell 3 is covered from top to bottom on the combined first insulating body 1 and second insulating body 2 , and its two side wall plates 32 cover the first insulating body 1 and the second insulating body 2 correspondingly. On the two opposite side walls, the pins 34 that are located at the two corners of the side wall plate 32 will be correspondingly inserted into the sockets 133 between the convex portion 132 of the first insulating body 1 and the side wall 12, and the ends will protrude out of the first insulating body 1. The joint surface 11 of an insulating body 1 is soldered to a circuit board (not shown), which can assist in fixing the electrical connector and conducts with the grounding circuit on the circuit board. When the shielding shell 3 is covered on the first insulating body 1 and the second insulating body 2, the details 1211 of the clamping body 121 on the first insulating body 1 can slide into the card through the "V"-shaped introduction notch 331 and the neck 3311. In the mouth 33, since the outer diameter of the details of the clamping body 121 is equivalent to the size of the bayonet socket 33, and the size of the neck 3311 of the bayonet socket 33 is slightly smaller than the size of the detail 1211 of the clamping body 121, so, by the clamping body 121 and the The bayonet socket 33 is engaged with each other so that when the electrical connector is mated with the mating electrical connector, the shielding case 3 will not be separated from the first insulating case 1 along the plugging and unplugging direction. In addition, since the radial dimension of the thick portion 1212 of the clamping body 121 is larger than the radial dimension of the bayonet 33, the side wall plates 32 on both sides of the shielding shell 3 will not bounce outward, so that the shielding shell 3 can be firmly fixed. It is fixed on the first insulating body 1 , and at the same time, the cover 31 is correspondingly covered on the peripheral side of the mating groove portion 23 . Furthermore, the sheet body 35 of the shielding shell 3 relatively abuts against the recess 2413 of the groove 241 of the second insulating body 2, when the guide post 4 is inserted through the matching guide holes 2411 at both ends of the second insulating body 2, and extends to In the guide hole 131 of the first insulating body 1, since the two are of similar size, they can be tightly fitted and fixed. In addition, the boss 41 of the guide post 4 will be accommodated in the square groove 24 of the second insulating body 2, and a part of the square boss 41 can just abut against the sheet 35, because the pin 34 of the shielding shell 3 and the The grounding circuit is turned on, and the guide post 4 communicates with the shielding shell 3 through the sheet body 35, so the guide post 4 is also in the grounding state at any time. Contacting with the guiding device of the docking electrical connector, it can guide the electrostatic charge on the shielding shell of the docking electrical connector to the grounding circuit, so that the telecommunications transmission before and after the docking of the electrical connector can be more stable.

Claims (10)

1. high density electrical connector, comprise: be the insulating body that lengthwise extends shape, the one side is made as interface, and opposite side then is made as the composition surface, between interface and composition surface, be provided with the terminal accommodation holes that connects insulating body, be provided with two relative side on the insulating body adjacent to interface; And being contained in several conducting terminals in the insulating body terminal accommodation holes, its both ends extend to interface respectively and electrically lead to constitute with other electron component on the composition surface; And the shielding casing that is coated on this insulating body week side, it is characterized in that: the insulating body two relative side is provided with several device for clamping, and the device for clamping place of the corresponding insulating body of shielding casing be provided with can with the match connecto of its corresponding matching, the winding by device for clamping and match connecto is combined into one shielding casing and insulating body.

2. high density electrical connector according to claim 1, it is characterized in that: the column holding body of the device for clamping on the insulating body side for protruding out by the sidewall one, and these holding bodies comprise contiguous insulating body and thin portion that is provided with and the thick portion that is provided with and comparatively expands away from insulating body, and thick portion external diameter is greater than thin portion external diameter.

3. high density electrical connector according to claim 2, it is characterized in that: set match connecto is to be located at the shielding casing side to extend on the edge and the suitable bayonet socket of external diameter of its internal diameter and the thin portion of holding body on the shielding casing, and the side edge that bayonet socket relies on shielding casing offers breach.

4. high density electrical connector according to claim 3 is characterized in that: the bayonet socket of holding body and breach connection are provided with the neck of its opening size less than the thin portion of holding body external diameter.

5. high density electrical connector according to claim 4 is characterized in that: the edge of shielding casing particular side wall is extended with several and can passes insulating body and can be engaged to pin on the circuit board.

6. high density electrical connector according to claim 5 is characterized in that: the insulating body lengthwise to both ends on respectively be arranged with pedestal, on two pedestals all the direction along electric connector butt joint offer guide hole.

7. high density electrical connector according to claim 6 is characterized in that: the guide hole place of the corresponding insulating body of shielding casing is provided with a lamellar body, to extend and to install a lateral margin place in this guide hole.

8. high density electrical connector according to claim 7 is characterized in that: further be provided with guide pillar in the guide hole of being offered on insulating body two pedestals.

9. high density electrical connector according to claim 8 is characterized in that: insulating body includes second insulating body, and correspondence is provided with terminal accommodation holes conducting terminal is passed through on this second insulating body.

10. high density electrical connector according to claim 9 is characterized in that: a side of second insulating body is resisted against on the insulating body, and opposite side then convexes with the butt joint slot part, and each terminal accommodation holes also runs through and by this butt joint slot part.

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