A connector of a metal front shell is configured with a wiring pin

Abstract

A connector with a metal front shell provided with a grounding pin comprises a terminal assembly and a metal shell, the terminal assembly comprises an insulating shell, metal terminals and a metal front shell, one end of the insulating shell is arranged in the metal shell, the other end of the insulating shell extends out of the metal shell, one end of the metal terminal is a wire end for welding with a core wire of a wire, the metal terminals are fixed in the insulating shell, the metal front shell is sleeved outside the insulating shell and covers at least a region outside the metal shell, the metal front shell is provided with a grounding pin integrated therewith, a free end of the grounding pin is flush with the wire end of the metal terminal and is used for welding with a ground wire of the wire. Compared with the prior art, the connector reduces the processing difficulty of the wire by arranging the grounding pin integrated with the metal front shell, and can improve the welding efficiency of the wire and the terminal.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to a connector with a metal front shell and wiring pins. Background Technology

[0002] To reduce the impact of external interference signals on the connector, the connector's metal housing is electrically connected to the ground wire, making the metal housing a shielding layer. The current induced by the external electromagnetic field in the metal housing is conducted to the ground through the grounding wire, preventing interference from penetrating the metal housing and affecting the internal signals. For example, the connector with a terminal block and terminal port core provided in application number CN200520008341X has its grounding wire embedded in the grounding clamp of the metal housing, thus grounding the metal housing.

[0003] Unlike the connectors mentioned above, some existing connectors have a terminal assembly with one end fixed inside a metal housing and the other end extending out of the housing. Therefore, the terminal assembly is also fitted with a metal front shell, which covers the protruding terminal assembly. Currently, the grounding method for the metal front shell is that the ground wire of the conductor is directly soldered to the metal front shell. However, the metal front shell is located in front of the metal terminal soldering position. Soldering the ground wire to the metal front shell is further forward than the soldering position of other core wires, the ground wire is longer than other core wires, the stripping position is inconsistent, the manufacturing process is complex, and production efficiency is reduced. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a connector with a metal front shell configured with wiring pins.

[0005] To achieve the above objectives, this utility model discloses a connector with a metal front shell configured with wiring pins, including a terminal assembly and a metal housing. The terminal assembly includes an insulating housing, metal terminals, and a metal front shell. One end of the insulating housing is disposed inside the metal housing, and the other end of the insulating housing extends out of the metal housing. One end of the metal terminal is a wire end that is soldered to the core wire of a conductor. There are multiple metal terminals, and the multiple metal terminals are fixed inside the insulating housing. The metal front shell is sleeved on the outside of the insulating housing and at least covers the area located outside the metal housing.

[0006] The metal front housing is provided with an integral grounding pin, the free end of which is flush with the wire end of the metal terminal and is used for soldering to the ground wire of the conductor.

[0007] Preferably, a separating rib is provided on the insulating housing between each pair of adjacent wire ends and between the free end of the grounding pin and the metal terminal.

[0008] Preferably, a connecting groove is formed between two partition ribs adjacent to the grounding pin. The grounding pin includes a transition section and a connecting section. The width of the transition section is smaller than the width of the connecting groove, and the width of the connecting section is adapted to the width of the connecting groove.

[0009] Preferably, the width of the connecting segment is equal to the width of the connecting groove.

[0010] Preferably, the cross-sectional shape of the connecting segment is U-shaped.

[0011] Preferably, the metal front shell is snapped onto the outside of the insulating shell.

[0012] Preferably, the metal front shell has outwardly extending limiting ears on both sides, and the metal shell has a limiting block that cooperates with the limiting ears.

[0013] Preferably, the metal housing includes an upper shell and a lower shell, which are detachably connected.

[0014] Preferably, one end of the metal front shell is located inside the metal housing, and both the upper and lower shells are provided with protrusions that abut against the metal front shell.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The grounding pin is integrally formed with the metal front shell, and its free end is flush with the wire end of the metal terminal. In this way, the length of all core wires of the conductor can be configured to be the same, especially the length of the ground wire and the other core wires. The length of the ground wire does not need to be configured to be longer than the length of the other core wires. At the same time, all core wires of the conductor can be stripped at the same position, which reduces the processing difficulty of the conductor and improves the welding efficiency of the conductor and the terminal. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a connector with wiring pins configured on a metal front housing, as shown in the embodiment;

[0018] Figure 2 for Figure 1 A three-dimensional exploded view of the connector;

[0019] Figure 3 for Figure 2 A three-dimensional structural diagram of the metal front shell;

[0020] Figure 4 for Figure 2 A schematic diagram of the three-dimensional structure of the lower and middle shells;

[0021] Figure 5 for Figure 1 Top view and sectional view of the connector.

[0022] Terminal assembly 100; insulating housing 110; rubber core 111; first locking block 1111; separating rib 1112; connecting groove 1113; rubber shell 112; metal terminal 120; mating end 121; wire end 122; metal front shell 130; grounding pin 131; transition section 1311; connecting section 1312; first locking groove 132; limiting ear 133;

[0023] Metal casing 200; upper casing 210; second slot 211; lower casing 220; second locking block 221; first limiting block 222; second limiting block 223; U-shaped opening 230; protrusion 240;

[0024] Wire clamp 300. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] A connector with a metal front housing and wiring pins, see [reference needed]. Figures 1-5 It includes a terminal assembly 100 and a metal housing 200.

[0027] The terminal assembly 100 includes an insulating housing 110, metal terminals 120, and a metal front shell 130. One end of the insulating housing 110 is located inside the metal housing 200, and the other end of the insulating housing 110 extends out of the metal housing 200. The two ends of the metal terminals 120 are wire ends 122 soldered to the core wires of the conductors, and mating ends 121 connected to the metal terminals 120 of another connector. The mating ends 121 are bow-shaped, which has better elastic deformation capability compared to a straight structure. During the mating process, the mating ends 121 undergo controllable elastic deformation to achieve mating, which can improve the positive pressure of the terminals during mating and improve the mechanical performance of the product. There are multiple metal terminals 120, and multiple metal terminals 120 are fixed inside the insulating housing 110. In this embodiment, the insulating housing 110 includes a core 111 and a shell 112. The core 111 is formed on one side of the wire ends 122 of all metal terminals 120 by injection molding, so as to achieve mutual fixation with all metal terminals 120. The housing 112 is also fixed to the core 111 by injection molding and is fitted over the mating end 121 of the metal terminal 120. The above-mentioned insulating housing 110 is a conventional insulating housing 110 of the existing terminal assembly 100. The metal front housing 130 is fitted over the insulating housing 110 and at least covers the area located outside the metal housing 200, so that the terminal assembly 100 extending outside the metal housing 200 also has a shielding function, reducing the influence of external interference signals.

[0028] The metal front housing 130 has an integrated grounding pin 131. The free end of the grounding pin 131 is flush with the wire end 122 of the metal terminal 120 and is used for soldering to the ground wire of the conductor, thereby grounding the metal front housing 130. By providing an integrated grounding pin 131 on the metal front housing 130, with its free end flush with the wire end 122 of the metal terminal 120, the length of all core wires of the conductor can be configured to be the same. In particular, the length of the ground wire can be configured to be the same as that of the other core wires. The length of the ground wire does not need to be configured to be longer than that of the other core wires. At the same time, all core wires of the conductor can be stripped at the same position, which reduces the processing difficulty of the conductor and improves the soldering efficiency between the conductor and the terminal.

[0029] In this embodiment, the metal front shell 130 is formed by a metal sheet stamping and bending process. During the stamping process, the grounding pin 131 is directly formed.

[0030] In this embodiment, one end of the metal front shell 130 is located inside the metal housing 200, specifically extending to a position close to the wire end 122, and the other end of the metal front shell 130 is flush with the outer end face of the plastic shell 112, so that the terminal assembly 100 can be basically covered, improving the anti-interference effect.

[0031] The metal front shell 130 is snapped onto the outside of the insulating shell 110. Specifically, a first locking block 1111 is provided on the outside of the rubber core 111, and the metal front shell 130 is provided with a first locking groove 132 corresponding to the first locking block 1111. After the metal front shell 130 is sleeved onto the rubber core 111 along the rubber shell 112, it is fixed to the outside of the insulating shell 110 by the cooperation of the first locking block 1111 and the first locking groove 132. The connection between the metal front shell 130 and the insulating shell 110 is achieved by snap-fit ​​connection, which is simple in structure and easy in connection operation.

[0032] In this embodiment, a separating rib 1112 is provided on the insulating housing 110 at the position between the wire ends 122 of each two adjacent metal terminals 120 and between the free end of the grounding pin 131 and the metal terminal 120. In this way, the wire ends 122 of two adjacent metal terminals 120 and the metal terminal 120 and the grounding pin 131 are separated by the separating rib 1112, which can avoid the risk of short circuit between adjacent wire ends 122.

[0033] A connecting groove 1113 is formed between two separating ribs 1112 adjacent to the grounding pin 131. The grounding pin 131 includes a transition section 1311 and a connecting section 1312. The transition section 1311 is arc-shaped and extends downward from the top surface of the core 111 into the connecting groove 1113. The width of the transition section 1311 is smaller than the width of the connecting groove 1113. The width of the connecting section 1312 is adapted to the width of the connecting groove 1113. Preferably, the width of the connecting section 1312 is equal to the width of the connecting groove 1113, so that it can be firmly positioned in the connecting groove 1113, improving the stability and welding effect during welding.

[0034] The connecting section 1312 has a U-shaped cross-section, with the opening of the U facing inwards. This U-shaped design allows the U-shaped section to deform inwards when there are errors in its width, especially when the width is slightly larger than the width of the connecting groove 1113. This allows the U-shaped section to smoothly fit into the groove 1113 during the insertion of the grounding pin 131. Simultaneously, the bottom of the U-shape can contact the grounding end of the grounding wire, ensuring a good welding effect. Furthermore, the U-shaped connecting section 1312 can encircle the grounding wire, allowing it to rest stably on the connecting section 1312, improving welding stability, reliability, and welding quality.

[0035] In this embodiment, the metal housing 200 includes an upper shell 210 and a lower shell 220, which are detachably connected. Specifically, the two outer side walls of the lower shell 220 are provided with second locking blocks 221, and the two outer side walls of the upper shell 210 are provided with second locking grooves 211. After the upper shell 210 is closed with the lower shell 220, the second locking blocks 221 are engaged in the second locking grooves 211, thereby connecting the two. Both the upper shell 210 and the lower shell 220 have U-shaped openings 230 at their ends. After the upper shell 210 and the lower shell 220 are closed, the two U-shaped openings 230 form an opening for the terminal assembly 100 to extend out.

[0036] The lower shell 220 has two inner sidewalls equipped with first limiting blocks 222, and the metal front shell 130 has outwardly extending limiting ears 133 on both sides. After the terminal assembly 100 is assembled, it is placed inside the lower shell 220, with the limiting ears 133 located behind the first limiting blocks 222 (the direction in which the metal front shell 130 extends is forward, and the opposite direction is backward). The front side of the limiting ears 133 is limited by the first limiting blocks 222. Then, the upper shell 210 is closed onto the lower shell 220. By setting the limiting engagement between the first limiting blocks 222 and the limiting ears 133, the terminal assembly 100 increases the pull-out force between the terminal assembly 100 and the metal shell 200 during use, especially in pull-out scenarios, through the limiting engagement between the limiting ears 133 and the first limiting blocks 222, thereby improving the performance of the connector.

[0037] After the upper shell 210 is covered by the lower shell 220, the U-shaped openings 230 of the upper shell 210 and the lower shell 220 both fasten the metal front shell 130. This improves the connection reliability between the terminal assembly 100 and the metal shell 200, and the metal shell 200 is connected to the ground wire through the metal front shell 130 to achieve grounding.

[0038] In this embodiment, both the upper shell 210 and the lower shell 220 are provided with protrusions 240. After the upper shell 210 and the lower shell 220 are connected, the corresponding protrusions 240 press against the metal front shell 130, thereby improving the connection reliability of the metal shell 200.

[0039] In this embodiment, a wire clamp 300 is also provided inside the housing. The wire clamp 300 has multiple wire grooves. During welding, the cable is fixed by the wire clamp 300 for welding. The front side of the wire clamp 300 abuts against the rubber core 111. The two inner sidewalls of the lower housing 220 are provided with second limiting blocks 223. The rear side of the wire clamp 300 is limited by the second limiting blocks 223. After the upper housing 210 is closed, the wire clamp 300 is fixed inside the metal housing 200. After the front and rear sides of the wire clamp 300 are limited, the rear side of the terminal assembly 100 is correspondingly limited by the wire clamp 300, and finally fixed inside the metal housing 200.

[0040] The above description is only a preferred embodiment of the present utility model, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connector with a metal front housing configured with wiring pins, characterized in that: The device includes a terminal assembly and a metal housing. The terminal assembly includes an insulating housing, metal terminals, and a metal front shell. One end of the insulating housing is located inside the metal housing, and the other end of the insulating housing extends out of the metal housing. One end of the metal terminal is a wire end that is soldered to the core wire of a conductor. There are multiple metal terminals, and the multiple metal terminals are fixed inside the insulating housing. The metal front shell is fitted over the insulating housing and at least covers the area located outside the metal housing. The metal front housing is provided with an integral grounding pin, the free end of which is flush with the wire end of the metal terminal and is used for soldering to the ground wire of the conductor.

2. The connector with a metal front housing configured with wiring pins according to claim 1, characterized in that: A separating rib is provided on the insulating housing between each pair of adjacent wire ends and between the free end of the grounding pin and the metal terminal.

3. The connector with a metal front housing configured with wiring pins according to claim 2, characterized in that: A connecting groove is formed between two partition ribs adjacent to the grounding pin. The grounding pin includes a transition section and a connecting section. The width of the transition section is smaller than the width of the connecting groove, and the width of the connecting section is adapted to the width of the connecting groove.

4. The connector with wiring pins on the metal front housing according to claim 3, characterized in that: The width of the connecting segment is equal to the width of the connecting groove.

5. The connector with a metal front housing configured with wiring pins according to claim 3, characterized in that: The cross-sectional shape of the connecting segment is U-shaped.

6. The connector with a metal front housing configured with wiring pins according to claim 1, characterized in that: The metal front shell is snapped onto the outside of the insulating shell.

7. The connector with a metal front housing configured with wiring pins according to claim 1, characterized in that: Both sides of the metal front shell are provided with outwardly extending limiting ears, and the metal shell is provided with a limiting block that cooperates with the limiting ears.

8. The connector with a metal front housing configured with wiring pins according to claim 1, characterized in that: The metal housing includes an upper shell and a lower shell, which are detachably connected.

9. The connector with a metal front housing configured with wiring pins according to claim 8, characterized in that: One end of the metal front shell is located inside the metal housing. Both the upper and lower shells are provided with protrusions that abut against the metal front shell.

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