Terminal and PCB assembly structure of RJ45 connector

Abstract

The utility model belongs to the technical field of electric connectors, and particularly relates to a terminal and PCB assembly structure of an RJ45 connector, which comprises a PCB and PIN terminals, and the PCB is provided with a plurality of terminal jacks forming a row; the number of the PIN terminals is consistent with the number of the terminal jacks, each PIN terminal comprises a pin section and an elastic pin section which mutually form a break angle, the pin section is provided with a stop shoulder, the pin section is inserted into and penetrates out of the terminal jack, the stop shoulder abuts against the hole edge of the terminal jack, and the pin section is in close fit with the terminal jack. According to the utility model, even if a plurality of PIN terminals are inserted into the terminal jacks on the same PCB, the positions of the PIN terminals inserted into the terminal jacks on the same PCB can be ensured to be consistent, the situation that the PIN terminals are inserted into the terminal jacks too deep or too shallow is avoided, the problem of high and low PINs is thoroughly prevented, the scheme is simple, the production efficiency is high, the quality is stable, and the cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical connectors, and particularly relates to an assembly structure of a terminal of an RJ45 connector and a PCB board. Background Art

[0002] An RJ45 connector is a type of connector for an information socket (i.e., a communication lead-out end) in a wiring system. The connector consists of a plug (connector, crystal head) and a socket (module). The connector composed of these two components is connected between wires to achieve the electrical continuity of the wires.

[0003] In the existing connectors, generally, the terminal and the plastic core are directly injection-molded together. If a split design of the terminal and the structure connected to the terminal is considered, since there are usually several terminals, it is necessary to ensure that the insertion position of each terminal is consistent during the assembly process. If the insertion position of the terminal is too deep or too shallow, it will cause high and low PINs, directly affecting the normal use of the connector and resulting in the inability of the connector to transmit current or signals. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an assembly structure of a terminal of an RJ45 connector and a PCB board, which can ensure that when several PIN needle terminals with a split design are inserted into the PCB board, their positions are consistent, avoid the phenomenon of high and low PINs, and improve the quality of the connector.

[0005] To achieve the above purpose, an assembly structure of a terminal of an RJ45 connector and a PCB board provided by an embodiment of the utility model includes:

[0006] A PCB board, on which several terminal jacks are arranged in a row;

[0007] PIN needle terminals, the number of the PIN needle terminals is the same as the number of the terminal jacks. The PIN needle terminals include a pin segment and a spring needle segment that form an included angle with each other. A stop shoulder is arranged on the pin segment. The pin segment is inserted into and passes through the terminal jack, the stop shoulder abuts against the edge of the terminal jack, and the pin segment is tightly fitted with the terminal jack.

[0008] Optionally, a deformation area is arranged on the pin segment. The diameters of the two sides of the pin segment located at the deformation area are larger than the diameter of the terminal jack. A deformation hole is arranged at the deformation area. The inner wall of the terminal jack squeezes the deformation area to cause the deformation hole to deform.

[0009] Optionally, the deformation hole is an oval hole, and the long axis direction of the oval hole is consistent with the axis of the terminal jack.

[0010] Optionally, a notch that is inwardly constricted is formed between the deformation zone and the stop shoulder.

[0011] Optionally, the notch is arc-surface transitioned to the deformation zone and the stop shoulder respectively.

[0012] Optionally, a flat stress-bearing surface is formed at the end of the stop shoulder facing away from the terminal jack.

[0013] One or more of the above technical solutions in the terminal and PCB board assembly structure of the RJ45 connector provided by the embodiments of the present invention at least have the following technical effects: During assembly, the pin segment of the PIN pin terminal is inserted into the terminal jack provided on the PCB board, and pressure is applied to the PIN pin terminal with the stop shoulder provided on the pin segment as the stress point until the stop shoulder abuts against the edge of the terminal jack. At this time, the pin segment is inserted in place, that is, the plug-in assembly of the PIN pin terminal and the PCB board is completed. Each PIN pin terminal is plugged and assembled in the corresponding terminal jack on the PCB board in this way. In this way, it can be ensured that even if there are several PIN pin terminals, their positions inserted into the terminal jacks on a PCB board can be guaranteed to be consistent, avoiding the situation where the PIN pin terminals are inserted too deep or too shallow into the terminal jacks, and completely preventing the problem of high and low PINs. The solution is simple, the production efficiency is high, the quality is stable, and the cost is reduced. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic structural diagram of the terminal and PCB board assembly structure of the RJ45 connector provided by the embodiments of the present invention.

[0016] Figure 2 It is an exploded schematic structural diagram of the terminal and PCB board assembly structure of the RJ45 connector provided by the embodiments of the present invention.

[0017] Figure 3 It is a sectional view of the terminal and PCB board assembly structure of the RJ45 connector provided by the embodiments of the present invention.

[0018] Figure 4 It is a sectional view of the layout position of the terminal and PCB board assembly structure of the RJ45 connector provided by the embodiments of the present invention.

[0019] Figure 5This is a schematic diagram of the PIN terminal of the assembly structure of the terminal of the RJ45 connector and the PCB board provided by the embodiment of the present utility model.

[0020] Among them, each reference numeral in the figure:

[0021] 10 - PCB board, 11 - terminal jack, 20 - PIN terminal

[0022] 21 - pin segment, 22 - elastic pin segment, 211 - stop shoulder

[0023] 212 - deformation area, 213 - deformation hole, 214 - notch

[0024] 215 - flat stress surface. Detailed implementation manners

[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The following is through reference to the attached Figures 1 to 5 The described embodiments are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as a limitation to the present utility model.

[0026] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0028] In the embodiments of the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model may be understood according to specific circumstances.

[0029] In one embodiment of the present utility model, as Figures 1 to 5 shown, a terminal and PCB board assembly structure of an RJ45 connector is provided, including a PCB board 10 and PIN needle terminals 20. A plurality of terminal jacks 11 are arranged in a row on the PCB board 10. Among them, the number of the PIN needle terminals 20 is the same as that of the terminal jacks 11. The PIN needle terminal 20 includes a pin segment 21 and a spring needle segment 22 that form an angle with each other. A stop shoulder 211 is arranged on the pin segment 21. The pin segment 21 is inserted into and passes through the terminal jack 11. The stop shoulder 211 abuts against the edge of the hole of the terminal jack 11, and the pin segment 21 is tightly fitted with the terminal jack 11.

[0030] When assembling the terminal and PCB board assembly structure of the RJ45 connector provided by the embodiments of the present utility model, the pin segment 21 of the PIN needle terminal 20 is inserted into the terminal jack 11 arranged on the PCB board 10. Taking the stop shoulder 211 arranged on the pin segment 21 as a stress point, pressure is applied to the PIN needle terminal 20 until the stop shoulder 211 abuts against the edge of the hole of the terminal jack 11. At this time, the pin segment 21 is inserted in place, that is, the insertion and assembly of the PIN needle terminal 20 and the PCB board 10 are completed. Each PIN needle terminal 20 is inserted and assembled in the corresponding terminal jack 11 on the PCB board 10 in this way. In this way, it can be ensured that even if there are several PIN needle terminals 20, the positions of the terminal jacks 11 on a PCB board 10 where they are inserted can be guaranteed to be the same, avoiding the situation that the PIN needle terminals 20 are inserted too deep or too shallow into the terminal jacks 11, and completely preventing the problem of high and low PINs. The solution is simple, the production efficiency is high, the quality is stable, and the cost is reduced.

[0031] In one embodiment of the present utility model, as Figures 3 to 4As shown, the pin segment 21 is provided with a deformation area 212. The terminals on the opposite sides of the pin segment 21 located in the deformation area 212 are larger than the aperture of the terminal jack 11. A deformation hole 213 is provided in the deformation area 212. The setting of the deformation hole 213 can ensure that the structure of the pin segment in the area of the deformation area 212 can be deformed. The deformation hole 213 provides a deformable space for the deformation of the pin segment 21, and the design is ingenious. The inner wall of the terminal jack 11 squeezes the deformation area 212 so that the deformation hole 213 deforms. Specifically, since the pin segment 21 has a deformation area 212 with a larger width, when it is inserted into the terminal jack 11, it will form a tight fit with the terminal jack 11. The inner wall of the terminal jack 11 squeezes the deformation area 212 of the pin segment 21 to produce appropriate deformation, and finally ensures the stable connection between the pin segment 21 and the terminal jack 11.

[0032] In an embodiment of the present invention, as Figures 3 to 4 shown, the deformation hole 213 is an oval hole, and the major axis direction of the oval hole is consistent with the axis of the terminal jack 11. Specifically, the pin segment 21 is a strip-shaped structure. Designing the deformation hole 213 as an oval hole is beneficial to the design of the deformation hole 213. Moreover, as the depth of the pin segment 21 inserted into the terminal jack 11 increases, the deformation of the deformation hole 213 is easier to achieve, and the structure corresponding to the deformation area 212 can have better elastic force to support on the inner wall of the terminal jack 11, realizing the tight fit between the pin segment 21 and the terminal jack 11.

[0033] In an embodiment of the present invention, as Figures 4 to 5 shown, a notch 214 that is inwardly contracted is formed between the deformation area 212 and the stop shoulder 211. This notch 214 structure is provided in the insertion-in-place area of the pin segment 21, which can ensure that the pin segment 21 is avoided from being blocked during the final insertion-in-place stage, and improve the insertion and assembly efficiency of the PIN needle terminal 20.

[0034] Preferably, as Figure 4 shown, the notch 214 is respectively arc-surface transitioned to the deformation area 212 and the stop shoulder 211. The arc-surface transition design is beneficial to the insertion and cooperation between the pin segment 21 and the terminal jack 11.

[0035] In an embodiment of the present invention, as Figures 3 to 5As shown, a flat stress-bearing surface 215 is formed at the end of the stop shoulder 211 facing away from the terminal jack 11. Specifically, the design of the flat stress-bearing surface 215 can serve as the acceptance point for assembling the PIN terminal 20 and the PCB board 10. Applying a force manually or mechanically on the flat stress-bearing surface 215 of the stop shoulder 211 is beneficial for the PIN terminal 20 to receive the force, and can also reduce the risk of the applied force being misaligned or lost, facilitating production and improving production efficiency and quality.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An assembly structure of a terminal and a PCB board of an RJ45 connector, characterized in that: include: A PCB board, wherein the PCB board is provided with a plurality of terminal jacks formed in a row; PIN pin terminal, the number of the PIN pin terminals is consistent with the number of the terminal sockets, the PIN pin terminal includes a pin segment and a spring pin segment that form a folded angle with each other, the pin segment is provided with a stop shoulder, the pin segment is inserted into and passes through the terminal socket, the stop shoulder abuts against the hole edge of the terminal socket, and the pin segment is tightly fitted with the terminal socket.

2. The RJ45 connector terminal and PCB board assembly structure according to claim 1, characterized in that: The pin segment is provided with a deformation zone, the terminals of the pin segment located on opposite sides of the deformation zone are larger than the aperture of the terminal insertion hole, a deformation hole is provided at the deformation zone, and the inner wall of the terminal insertion hole squeezes the deformation zone to cause the deformation hole to deform.

3. The RJ45 connector terminal and PCB board assembly structure according to claim 2, characterized in that: The deformable hole is an elliptical hole, and the long axis direction of the elliptical hole is consistent with the axis center of the terminal insertion hole.

4. The terminal and PCB assembly structure of the RJ45 connector according to claim 2, characterized in that: A recess contracted inwardly is formed between the deformation zone and the stop shoulder.

5. The RJ45 connector terminal and PCB board assembly structure according to claim 4, characterized in that: The recesses are respectively transitioned to the deformation zone and the stop shoulder through arc surfaces.

6. The RJ45 connector terminal and PCB board assembly structure according to claim 1, characterized in that: The end of the stop shoulder facing away from the terminal insertion hole is formed with a flat force-bearing surface.

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