CN205646333U - electrical connector - Google Patents

Abstract

The utility model discloses an electric connector, which comprises an insulating body and a shielding shell coated on the surface of the insulating body, wherein the insulating body is provided with a butt joint groove, butt joint terminals are arranged in the butt joint groove, a filtering module is also arranged in the insulating body, the filtering module comprises an insulating base and a plurality of magnetic coils accommodated in the insulating base, the insulating base is fixed with a plurality of first switching terminals and second switching terminals, each magnetic coil is provided with a plurality of signal leads and a tapping lead, the signal leads are fixed on the first switching terminals and the second switching terminals and form electric connection, the insulating base is also fixed with at least one grounding terminal, each tapping lead is fixed on the grounding terminal and form electric connection, the grounding terminal is contacted with the shielding shell and form electric connection, a circuit board with the function of switching is cancelled, the material cost and the assembly cost are saved, and no other electronic elements are arranged between the tapping lead and the grounding terminal, the surge protection capability and the response speed are improved.

Description

electrical connector

technical field

The utility model relates to the technical field of electric connectors, in particular to the improvement of the grounding structure of the electric connector.

Background technique

In order to achieve better electrical performance, a grounding structure is usually provided in the electrical connector. The Chinese invention patent with the existing notification number CN101740906B discloses an electrical connector, which sets first, second, and third grounding points on the sub-circuit board, and the sub-circuit board is connected to the outer shell through the aforementioned grounding points, and through The outer shell and the mother circuit board are connected to the ground, and the three-point grounding structure provided on the sub-circuit board enables the sub-circuit to effectively achieve a ground connection with the mother circuit board through the outer shell.

In addition, there is also a Chinese Taiwan patent with the publication number TW452261 disclosing a grounding structure of a connector, which protrudes a shrapnel near the inner side of the circuit board, and the circuit board has a grounding point, and makes the shrapnel elastically abut against the inner side of the circuit board. At the ground point of the circuit board, the metal case, connector and circuit board form a common ground loop.

However, the electrical connectors of the above patents all need to be equipped with a circuit board for switching, which increases the material cost and assembly cost of the product. Therefore, it is necessary to design a new structure to solve the above technical problems.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides an electrical connector with fast grounding response speed, saving material cost and assembly cost.

The technical scheme that the utility model solves its technical problem adopts is:

An electrical connector, comprising an insulating body and a shielding shell covering the surface of the insulating body, the insulating body is provided with a docking groove, and a butt terminal is arranged in the docking groove, and a filter module is also arranged in the insulating body, The filter module includes an insulating base and a number of magnetic coils accommodated in the insulating base, the insulating base is fixed with a number of first transfer terminals and second transfer terminals, and each magnetic coil has a number of signal lead wire and a tap lead wire, the signal lead wire is fixed to the first transfer terminal and the second transfer terminal to form an electrical connection, the insulating base is also fixed with at least one ground terminal, and each tap lead wire is fixed to the ground terminal And form an electrical connection, the ground terminal is in contact with the shielding shell and forms an electrical connection.

As an improvement of the above technical solution, the butt joint terminal includes a welding portion, and the welding portion is welded to the first transfer terminal to form an electrical connection.

As a further improvement of the above technical solution, the second transfer terminal has a protruding portion that is electrically connected to an external circuit, and the protruding portion protrudes from the insulating base.

Further, a ground terminal is fixed on both sides of the insulating base, and the shielding shell includes two opposite side walls, and an elastic arm extends from each side wall to contact the ground terminal.

Further, the ground terminal includes two adjacently arranged first branch terminals and second branch terminals, and a connecting bridge is provided in the middle of the first branch terminal and the second branch terminal to be electrically connected.

Further, the first branch terminal, the second branch terminal and the connecting bridge are integrally formed.

Further, a ground terminal is fixed in the middle of the insulating base, and the shielding case includes a rear wall, and an elastic arm extends from the rear wall to contact the ground terminal.

Further, the insulating base is provided with a fixing block in the middle for fixing the grounding terminal, one end of the grounding terminal is fixed to the fixing block, and the other end is exposed from the fixing block.

The beneficial effects of the utility model are: the utility model fixes at least one grounding terminal on the insulating base, and fixes the tap lead wire of the magnetic coil to the grounding terminal to form an electrical connection, and the grounding terminal is in contact with the shielding shell and An electrical connection is formed, so that the tap leads of each magnetic coil are electrically connected to the shielding shell to achieve grounding. Since the circuit board that acts as a switch is canceled, material costs and assembly costs are saved, and each tap lead is connected to the common through the ground terminal. There are no other electronic components between the tap lead and the ground terminal, which reduces the response time of other electronic components and improves the surge protection capability and response speed.

Description of drawings

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

Fig. 1 is a schematic diagram of the assembly structure of Embodiment 1 of the present utility model.

Fig. 2 is a schematic diagram of an exploded structure of Embodiment 1 of the utility model.

Fig. 3 is a schematic cross-sectional structure diagram of Embodiment 1 of the utility model.

Fig. 4 is a schematic structural diagram of the filter module in Embodiment 1 of the present invention. ;

FIG. 5 is a schematic diagram of an enlarged structure of A in FIG. 4 .

Fig. 6 is a schematic diagram of the assembly structure of the second embodiment of the utility model.

Fig. 7 is a schematic diagram of the exploded structure of the second embodiment of the utility model.

Fig. 8 is a schematic structural diagram of the filter module in the second embodiment of the present invention.

Fig. 9 is a schematic structural view of the magnetic coil in the present invention.

detailed description

Referring to Figures 1 to 9, an electrical connector includes an insulating body 1 and a shielding shell 2 covering the surface of the insulating body 1, the insulating body 1 is provided with a docking groove 11, and in the docking groove 11 The butt terminal 3 is provided, and the filter module 4 is also provided in the insulating body 1. The filter module 4 includes an insulating base 41 and several magnetic coils 42 housed in the insulating base 41. The insulating base 41 Several first transfer terminals 43 and second transfer terminals 44 are fixed, and each magnetic coil 42 has several signal leads 421 and a tap lead 422, and the signal leads 421 are fixed to the first transfer terminals 43 and the second transfer terminals 42. transfer terminals 44 and form an electrical connection, the insulating base 41 is also fixed with at least one grounding terminal 45, each of the pumping The header lead 422 is fixed and electrically connected to the ground terminal 45 , and the ground terminal 45 is in contact with the shield case 2 to form an electrical connection.

As shown in FIG. 4 , the butt joint terminal 3 includes a welding portion 31 , and the welding portion 31 is welded to the first transfer terminal 43 to form an electrical connection.

The second transfer terminal 44 has a protruding portion 441 electrically connected to an external circuit, and the protruding portion 441 protrudes from the insulating base 41 .

Embodiment 1, the insulating base 41 is fixed with a grounding terminal 45 on both sides, as shown in FIG. 2 to FIG. An elastic arm 21 is in contact with the ground terminal 45 .

In order to achieve a better working method, the grounding terminal 45 in Embodiment 1 includes two adjacently arranged first branch terminals 451 and second branch terminals 452, and a connecting bridge is provided in the middle of the first branch terminal 451 and the second branch terminal 452 453 electrical connections, as shown in Figure 5. During operation, a tap lead 422 is respectively fixed on the first branch terminal 451 and the second branch terminal 452, so that the tap lead 422 does not need to be fixed at the same position, which reduces the difficulty of operation, and connects the first branch terminal 451 and the second branch terminal 453 through the connecting bridge 453. The two branch terminals 452 are electrically connected together, and the elastic arm 21 only needs to be in contact with any position of the first branch terminal 451 or the second branch terminal 452 to realize the connection between the shielding case 2 and the first branch terminal 451 and the second branch terminal 452. electrical connection at the same time. The tap lead 422 can be fixed on the first branch terminal 451 and the second branch terminal 452 by winding, or fixed thereon by welding.

In addition, as an implementation manner, the first branch terminal 451, the second branch terminal 452 and the connecting bridge 453 are integrally formed, and the first branch terminal 451, the second branch terminal 452 and the connecting bridge 453 can be formed by stamping, without Additional assembly steps are required to connect the connection bridge 453 between the first branch terminal 451 and the second branch terminal 452 . Of course, the connection bridge 453 can also be fixed between the first branch terminal 451 and the second branch terminal 452 by welding, so as to achieve the same technical purpose.

Embodiment 2, the insulating base 41 fixes a grounding terminal 45' in the middle, as shown in Figure 7 and Figure 8, the shielding case 2 includes a rear wall 23, and an elastic arm 21 extends from the rear wall 23 ', in contact with the ground terminal 45'. The insulating base 41 is provided with a fixing block 411 in the middle for fixing the grounding terminal 45', one end of the grounding terminal 45' is fixed to the fixing block 411, and the other end is exposed from the fixing block 411, and the grounding terminal 45' is exposed from the fixing block 411 A part is used to connect with the tap lead 422 , and at the same time, the elastic arm 21 ′ contacts the ground terminal 45 ′ and is exposed to the fixing block 411 . The difference between this embodiment and Embodiment 1 is that only one ground terminal 45' is set on the insulating base 41, and a plurality of tap leads 422 are fixed on it, in order to keep the ground terminal 45' away from the tap leads 422 of each magnetic coil 42 Closer, each tap lead 422 is fixed on the ground terminal 45 ′ to facilitate the operation, and the ground terminal 45 ′ is fixed on the middle part of the insulating base 41 . However, the number and position of the ground terminals 45' can be set according to the actual operation requirements and the number of the tap leads 422, so as to achieve the same technical purpose, and there is no limitation on the number and position.

The above is only a preferred embodiment of the utility model, but the utility model is not limited to the above-mentioned embodiment, as long as it achieves the technical effect of the utility model by any same or similar means, it should fall into the scope of the utility model protected range.

Claims (8)

1. An electrical connector, comprising an insulating body and a shielding shell coated on the surface of the insulating body, the insulating body is provided with a docking groove, and a butt terminal is arranged in the docking groove, and a filter module is also arranged in the insulating body group, the filter module includes an insulating base and a number of magnetic coils housed in the insulating base, the insulating base is fixed with a number of first transfer terminals and second transfer terminals, each of the magnetic coils has A plurality of signal lead wires and a tap lead wire, the signal lead wires are fixed to the first transfer terminal and the second transfer terminal to form an electrical connection, and it is characterized in that: the insulating base is also fixed with at least one ground terminal, and each The tap leads are fixed to the ground terminal and form an electrical connection, and the ground terminal is in contact with the shielding shell and forms an electrical connection. 2 . The electrical connector according to claim 1 , wherein the butt terminal includes a welding portion, and the welding portion is welded to the first transfer terminal to form an electrical connection. 3 . The electrical connector according to claim 1 , wherein the second transfer terminal has a protruding portion electrically connected to an external circuit, and the protruding portion protrudes from the insulating base. 4 . 4. The electrical connector according to claim 1, wherein the insulating base is fixed with a grounding terminal on both sides, and the shielding shell includes two opposite side walls, and a ground terminal is extended on each side wall. The spring arm is in contact with the ground terminal. 5. The electrical connector according to claim 4, wherein the ground terminal includes two adjacently arranged first branch terminals and second branch terminals, and the middle part of the first branch terminal and the second branch terminal is arranged Connect the bridge electrical connections. 6. The electrical connector according to claim 5, wherein the first branch terminal, the second branch terminal and the connecting bridge are integrally formed. 7. The electrical connector according to claim 1, wherein a grounding terminal is fixed in the middle of the insulating base, and the shielding shell includes a rear wall, and an elastic arm and the grounding terminal extend from the rear wall touch. 8. The electrical connector according to claim 7, wherein a fixing block is provided in the middle of the insulating base for fixing the grounding terminal, one end of the grounding terminal is fixed to the fixing block, and the other end is exposed from the fixing block .