Pin assembling structure

Abstract

The utility model discloses a pin assembly structure, which comprises a pin structure and a PCB (printed circuit board), the pin structure comprises a female header, a pin header and a bent pin, and a positioning column is arranged on one side, close to the bent pin and opposite to the bending direction of the pin header, of the female header; the PCB is provided with a welding hole for the bending needle to be inserted and a positioning hole for the positioning column to be inserted. According to the utility model, the positioning column is designed at the female header end and is positioned on the PCB, so that the phenomenon that the pin header inclines downwards or the welding end of the bending pin tilts upwards can be effectively relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit assembly technical field, concretely is a kind of pin assembly structure. BACKGROUND

[0002] Now, in the structure design of automobile product, pin is an indispensable component, is widely used in various electronic equipment, mobile phone, computer, display, medical equipment, industrial equipment, automobile aerospace etc. are needed to use connector. The type of connector is very much, like DC socket, earphone socket, USB connector, automobile connector, waterproof connector etc. electronic components belong to connector. It can effectively connect the continuous conductor between the circuit in electronic product, and play its role.

[0003] Especially a kind of pin of bending type. In order to more accurately and efficiently assemble the pin of bending type on shell, usually the pin is designed, and the assembly interference problem caused by dimensional cumulative error is reduced, so as to improve the efficiency and position accuracy of assembly. Therefore, when designing product, the following needs to be considered: 1. the problem of unstable gravity center caused by bending pin.2. the problem of pin welding float.3. the problem of position deviation of pin tip at the end of plug caused by bending angle, 4. the problem of position degree of shell sheath to plug hole. UTILITY MODEL CONTENT

[0004] To solve the defects in the prior art, the utility model provides a pin assembly structure.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] The utility model discloses a pin assembly structure, including pin structure and PCB board, pin structure includes row female, row pin and bending needle, and the side of row female close to bending needle is provided with positioning column relative to the bending direction of row pin;

[0007] The welding hole for the insertion of the bending needle and the positioning hole for the insertion of the positioning column are formed in the PCB board.

[0008] As a preferred technical scheme of the utility model, the end of the row pin and the bending needle is chamfered, and the needle head after chamfering is a tapered structure with gradually reduced size.

[0009] As a preferred technical scheme of the utility model, the number of welding holes on the PCB board corresponds to the number of bending needles, that is, each bending needle corresponds to a welding hole.

[0010] As a preferred technical scheme of the utility model, it further includes an assembly shell, the assembly shell is provided with an assembly slot for the row pin, and the slot hole of the assembly slot is a U-shaped structure with one end opening.

[0011] As a preferred technical scheme of the utility model, the slot hole of the assembly slot extends longitudinally, and the adjacent assembly slots are distributed along the transverse direction.

[0012] As a preferred technical scheme of the utility model, at least two pin rows are accommodated in the slot hole of the assembly slot.

[0013] The utility model has the beneficial effects that:

[0014] The positioning column is designed at the pin row end and is positioned on the PCB, which can effectively relieve the phenomenon that the pin row is downwardly inclined or the welding end of the bent pin is upwardly raised. DETAILED DESCRIPTION

[0015] The accompanying drawings are used to provide further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0016] Figure 1 It is the pin row structure schematic view of the utility model;

[0017] Figure 2 It is the PCB structure schematic view of the utility model;

[0018] Figure 3 It is the pin row structure and PCB connection structure schematic view of the utility model.

[0019] Figure 4 It is the side view state schematic view of the utility model Figure 3 ;

[0020] Figure 5 It is the shell assembly schematic view of the utility model;

[0021] Figure 6 It is the A place enlarged view in the utility model Figure 5 . DETAILED DESCRIPTION

[0022] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0023] Embodiment:

[0024] The overall concept of the application is that the pin row structure is mainly composed of two parts of the pin (the pin includes the pin row 2 and the bent pin 3) and the pin row 1 (such as Figure 1 ). The PCB 5 has the welding hole 6 and the positioning hole 7 (such as Figure 2 ). The bent pin 3 is welded on the PCB by the wave crest welding process (such as Figure 3), due to the existence of the bending type of needle structure generally unstable center of gravity, the welding, the whole plug end (bending needle 3 and the needle 2) will be tilted downward. And because the wave soldering furnace temperature as high as several hundred degrees Celsius, tin climbing process will produce tin and floating high phenomenon, resulting in the whole pin upward deviation. At the same time, the influence of the bending angle, the needle 2 will exist upward or downward deviation. Thus leading to the cumulative error of size becomes large, in the shell assembly, will appear difficult to insert the situation occurs. So, first in the end of the busbar 1 design 2 positioning column 4 (such as Figure 1 ), positioning on the PCB 5, can effectively alleviate the plug end needle downward tilt or welding end upward phenomenon (such as Figure 4 ) Figure paper needle bending angle is 90°, the actual bending angle exists deviation, also will lead to the needle tip upward or downward tilt. Through the adjustment and control of the needle tip 21 chamfer (such as Figure 1 ), so that the needle tip plays a better guide role. For the shell of the plug hole, designed into a U-shaped groove hole 22 (such as Figure 4 ), the needle through the slot hole into the shell (such as Figure 5 and Figure 6 ). The contact surface of the needle and the shell is reduced, reducing the scratch of the shell on the surface of the needle during assembly, thereby reducing the short circuit phenomenon caused by the damage of the plating surface of the needle. Effectively improve the assembly efficiency of the needle and the shell and the qualification rate of the product.

[0025] Specifically: a needle assembly structure, comprising a needle structure and a PCB 5, the needle structure comprises a busbar 1, a needle 2 and a bending needle 3, the busbar 1 is provided with a positioning column 4 on the side close to the bending needle 3 relative to the bending direction of the needle 2.

[0026] The PCB 5 is provided with a welding hole 6 for inserting the bending needle 3 and a positioning hole 7 for inserting the positioning column 4. The number of welding holes 6 on the PCB 5 corresponds to the number of bending needles 3, that is, each bending needle 3 corresponds to a welding hole 6.

[0027] The end of the needle 2 and the bending needle 3 is chamfered, and the chamfered needle head is a tapered structure with gradually reduced size.

[0028] It also includes an assembly shell, the assembly shell is provided with an assembly slot 22 for the needle 2, the slot hole of the assembly slot 22 is a U-shaped structure with one end opening. The slot hole of the assembly slot 22 extends longitudinally, and the adjacent assembly slots 22 are distributed along the transverse direction. The slot hole of the assembly slot 22 contains at least two needles 2.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A pin assembly structure, characterized in that, It includes a pin structure and a PCB board (5). The pin structure includes a header (1), a header (2) and a bending pin (3). The header (1) has a positioning post (4) on the side of the header (3) opposite to the bending direction of the header (2). The PCB board (5) has a soldering hole (6) for inserting the bending pin (3) and a positioning hole (7) for inserting the positioning post (4).

2. The pin assembly structure according to claim 1, characterized in that, The ends of the needles (2) and (3) are chamfered, and the chamfered needles have a tapered structure with gradually decreasing size.

3. The pin assembly structure according to claim 2, characterized in that, The number of solder holes (6) on the PCB board (5) corresponds to the number of bending pins (3), that is, each bending pin (3) corresponds to one solder hole (6).

4. The pin assembly structure according to claim 1, characterized in that, It also includes an assembly housing, which is provided with an assembly groove (22) for the pins (2) to pass through. The groove (22) has a U-shaped structure with one end open.

5. The pin assembly structure according to claim 4, characterized in that, The slots of the assembly slots (22) extend longitudinally, and adjacent assembly slots (22) are distributed laterally at intervals.

6. The pin assembly structure according to claim 5, characterized in that, At least two pin headers (2) are accommodated in the slot of the assembly groove (22).

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