Wire-to-board connector male socket

Abstract

The utility model relates to the technical field of electric connector manufacturing, in particular to a male socket of a wire-to-board connector. The insulating rubber base is formed by buckling a plastic shell and a rear cover plate. A partition body is formed in the plastic shell, and an inner cavity of the partition body is divided into a rear sub-cavity and a front sub-cavity. And the plastic water blocking piece is arranged in the rear sub-cavity and is attached to the baffle body. The contact pin transversely penetrates through the rear cover plate and the blocking body at the same time. After the pin is assembled, the circumferential side wall of the pin is subjected to the elastic wrapping force from the plastic water-blocking piece. Therefore, on one hand, the rear sub-cavity and the front sub-cavity are blocked by the blocking body, and in addition, with the assistance of the plastic water blocking piece, the circumferential assembling gap of each pin can be blocked, so that water or water vapor can be prevented from invading the inner cavity of the connector male seat; and on the other hand, due to the material characteristics, the plastic water blocking piece has good plasticity and rebound resilience, tight wrapping of the contact pin is facilitated, and the requirement for the forming position precision and the size precision of the centrally-arranged embedding hole is extremely low.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connector manufacturing, in particular to a wire-to-board connector male socket. Background Art

[0002] A wire-to-board connector is a device used to connect circuit boards to wires. It uses a male and female connector to achieve the electrical connection between the circuit board and the cable. Wire-to-board connectors are used in a variety of applications, including consumer electronics like televisions and computers, as well as industrial applications such as automotive and avionics.

[0003] Wire-to-board connectors are generally composed of a male and female parts, wherein the male part includes an insulating rubber seat and a pin assembly. The insulating rubber seat is formed by snapping together a plastic shell and a rear cover. A barrier is formed inside the plastic shell. The pin assembly is composed of a plurality of pins that simultaneously cross the rear cover and the barrier and are arranged in a rectangular array. As far as the current situation is concerned, the waterproof performance of the male part of the connector is poor. Water or water vapor will inevitably invade the inner cavity of the male part through the assembly gap formed between the pin and the rear cover and between the pin and the barrier, which will eventually affect the stability and reliability of the electrical conduction between the PCB board and the cable, and will inevitably affect the actual application effect of the wire-to-board connector. Therefore, during the factory manufacturing stage, extremely high acceptance requirements are placed on the waterproof performance of the male part of the wire-to-board connector. Utility Model Content

[0004] Therefore, in view of the above-mentioned existing problems and defects, the designers of the present invention collected relevant information, conducted multiple evaluations and considerations, and after continuous experimentation and modifications by technicians with many years of R&D experience in this industry, ultimately led to the emergence of the wire-to-board connector male socket.

[0005] In order to solve the above-mentioned technical problems, the utility model relates to a wire-to-board connector male socket, including an insulating rubber socket and a pin assembly. The insulating rubber socket is formed by buckling a plastic shell and a rear cover. A baffle body is formed in the plastic shell, and its inner cavity is additionally divided into a rear sub-cavity and a front sub-cavity. The pin assembly is composed of a plurality of pins that simultaneously cross the rear cover and the baffle body and are arranged in a rectangular array. The rear cover and the baffle body are respectively formed with rear embedding holes and front embedding holes for the pins to be installed. The wire-to-board connector male socket also includes a plastic water-blocking component. The plastic water-blocking component is placed in the rear sub-cavity and is in contact with the baffle body. The plastic water-blocking component is formed with a central embedding hole for the pins to be installed. And when the pins are assembled, their circumferential side walls are subjected to the elastic wrapping force from the plastic water-blocking component.

[0006] As a further improvement to the technical solution disclosed in this utility model, a plurality of waterproof reinforcement extensions are formed by extending forward from the front sidewall of the plastic water-blocking element, directly opposite the central mounting hole. Opposite the front mounting hole, an extrusion groove for inserting the waterproof reinforcement extensions is formed by extending forward from the rear sidewall of the baffle body. As the plastic water-blocking element moves toward the baffle body to achieve contact, as the waterproof reinforcement extensions penetrate deeper, the circumferential sidewalls of the waterproof reinforcement extensions elastically contract due to the lateral extrusion force, thereby increasing the circumferential elastic holding force on the pins.

[0007] As a further improvement of the technical solution disclosed in the present utility model, the longitudinal sections of the waterproof reinforcement extension and the extrusion groove are both trapezoidal.

[0008] As a further improvement of the technical solution disclosed in the present utility model, a set of criss-cross limiting protrusions is formed by extending forward from the front side wall of the plastic water-blocking component at its center position, and correspondingly, a set of criss-cross limiting grooves is formed by extending forward from the rear side wall of the partition body to match the set of criss-cross limiting protrusions.

[0009] As a further improvement to the technical solution disclosed in this utility model, an annular adhesive groove is formed on the circumferential sidewall of the central mounting hole. Multiple annular adhesive grooves are arranged in a linear array along the axial direction of the central mounting hole and interpenetrate each other. Glue enters the annular adhesive grooves through the assembly gap formed between the pin and the plastic waterproof component, forming a waterproof colloid.

[0010] During the assembly stage in the workshop, after the plastic water-blocking component is assembled in the rear sub-cavity, it remains in contact with the baffle body. With the help of the circumferential elastic wrapping of the plastic water-blocking component on the pins, good waterproof performance is achieved, preventing external water or water vapor from invading the inner cavity of the connector male seat along the pins.

[0011] In practical applications, the wire-to-board connector male socket disclosed in the present utility model can achieve at least the following beneficial technical effects, specifically:

[0012] 1) A baffle is molded into the plastic shell to separate its inner cavity into independent rear and front chambers. Furthermore, the plastic water-blocking member effectively seals the circumferential assembly gaps between the pins. These two factors effectively prevent water or moisture from entering the inner cavity of the connector male, significantly improving the waterproof performance of the wire-to-board connector male.

[0013] 2) Due to its material properties, the plastic water barrier has good plasticity and resilience, which is conducive to achieving tight wrapping of the circumferential side walls of the pins, and has extremely low requirements for the molding position accuracy and dimensional accuracy of the central embedded hole, which is conducive to reducing the molding difficulty and molding cost of the plastic water barrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the application state of the wire-to-board connector male socket and the PCB disclosed in the utility model being matched.

[0016] Figure 2 It is a three-dimensional schematic diagram of a wire-to-board connector male socket disclosed in the utility model from one viewing angle.

[0017] Figure 3 It is a three-dimensional schematic diagram of another viewing angle of the wire-to-board connector male socket disclosed in the utility model.

[0018] Figure 4 It is a three-dimensional schematic diagram of the insulating rubber seat in the male seat of the wire-to-board connector disclosed in the utility model.

[0019] Figure 5 yes Figure 4 Top view of .

[0020] Figure 6 yes Figure 5 AA cross-sectional view.

[0021] Figure 7 It is a three-dimensional schematic diagram of a plastic water-blocking component in the male socket of the wire-to-board connector disclosed in the utility model from one perspective.

[0022] Figure 8 This is a three-dimensional schematic diagram of another perspective of the plastic water blocking component in the male socket of the wire-to-board connector disclosed in the utility model.

[0023] Figure 9 yes Figure 7 Top view of .

[0024] Figure 10 yes Figure 9 BB cross-sectional view.

[0025] Figure 11 yes Figure 2 Top view of .

[0026] Figure 12 yes Figure 11 CC cross-sectional view.

[0027] 1-insulating rubber seat; 11-plastic shell; 111-blocking body; 1111-front embedding hole; 1112-extrusion groove; 1113-crisscross limiting groove assembly; 12-rear cover; 121-rear embedding hole; 2-pin assembly; 21-pin; 3-plastic water-blocking part; 31-center embedding hole; 311-annular plastic groove; 32-waterproof reinforcement extension; 33-crisscross limiting protrusion assembly; 4-waterproof colloid. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "up", "down", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] The following is a further detailed description of the present invention in conjunction with specific embodiments. Figure 1 、 2 As shown in , 11, and 12, the male seat of the wire-to-board connector is mainly composed of several parts such as an insulating rubber seat 1, a pin assembly 2, and a plastic water-blocking member 3. Among them, the insulating rubber seat 1 is formed by buckling a plastic shell 11 and a rear cover plate 12 (as shown in FIG. Figure 3 A partition body 111 is formed in the plastic shell 11, and its inner cavity is divided into a rear sub-cavity and a front sub-cavity (as shown in FIG. Figure 4 、 5 , 6). Figure 3 As shown in , the pin assembly 2 consists of a plurality of pins 21 arranged in a rectangular array. The plastic water-blocking member 3 is placed in the rear sub-cavity and abuts against the baffle 111. Each pin 21 sequentially traverses the rear cover 12, the plastic water-blocking member 3, and the baffle 111. Correspondingly, the rear cover 12, the plastic water-blocking member 3, and the baffle 111 are respectively formed with rear mounting holes 121, center mounting holes 31, and front mounting holes 1111 for the pins 21 to be inserted into. When the pins 21 are assembled, their circumferential sidewalls are subjected to the elastic holding force of the plastic water-blocking member 3.

[0030] During the assembly stage in the workshop, after the plastic water-blocking component 3 is assembled in the rear sub-cavity, it remains in contact with the baffle 111. With the help of the circumferential elastic wrapping of the plastic water-blocking component 3 on the pin 21, good waterproof performance is achieved, preventing external water or water vapor from invading the inner cavity of the connector male seat along the pin 21.

[0031] By adopting the above technical solution, on the one hand, a baffle 111 is formed in the plastic shell 11 to divide its inner cavity into mutually independent rear sub-cavity and front sub-cavity. In addition, with the help of the plastic water-blocking component 3, the circumferential assembly gap of each pin 21 can be effectively blocked. Combining the above two factors, it can effectively prevent water or water vapor from invading the inner cavity of the connector male seat, and the waterproof performance of the wire-to-board connector male seat can be significantly improved; on the other hand, due to its material characteristics, the plastic water-blocking component 3 has good plasticity and resilience, which is conducive to achieving tight wrapping of the circumferential side walls of the pin 21, and has extremely low requirements on the molding position accuracy and dimensional accuracy of the central embedded hole, which is conducive to reducing the molding difficulty and molding cost of the plastic water-blocking component.

[0032] Depend on Figure 7-10 As shown in FIG, it can be clearly seen that, facing the centrally located embedding hole 31, a plurality of waterproof reinforcement extensions 32 are formed by extending forward from the front side wall of the plastic water-blocking component 3. Figure 4-6 As shown in the figure, the rear side wall of the barrier body 111 extends forward from the rear side wall of the barrier body 111, forming an extrusion groove 1112 for inserting the waterproof reinforcement extension 32. During the assembly stage in the workshop, as the plastic water-blocking component 3 moves toward the barrier body 111 to achieve contact, as the waterproof reinforcement extension 32 penetrates deeper into the extrusion groove 1112, the circumferential side walls of the waterproof reinforcement extension 32 elastically shrink due to the lateral extrusion force from the extrusion groove 1112. This increases the circumferential elastic holding force on the pin 21, and its circumferential assembly gap is completely blocked, effectively preventing water or water vapor from intruding into the inner cavity of the connector male socket, thereby ensuring the stability and reliability of the electrical conduction between the pin and the cable.

[0033] As Figure 4-10 As shown in the figure, the longitudinal cross-sections of the waterproof reinforcement extension 32 and the corresponding extrusion groove 1112 are both trapezoidal. This, on the one hand, provides excellent guidance, facilitating rapid alignment and assembly of the plastic waterproof member 3 relative to the barrier 111. On the other hand, thanks to the trapezoidal design, the pin 2 has a longer elastic grip distance relative to the plastic waterproof member 3, further enhancing the waterproof performance of the wire-to-board connector male socket.

[0034] Likewise Figure 4-10As shown in the figure, it can be clearly seen that, located in the center, the front side wall of the plastic water-blocking member 3 extends forward to form a set of crisscross limiting protrusions 33. Correspondingly, the rear side wall of the barrier body 111 extends forward to form a set of crisscross limiting grooves 1113 that match the crisscross limiting protrusions 33. This ensures, on the one hand, that the plastic water-blocking member 3 has a good and stable relative position relative to the barrier body 111, facilitating the precise alignment between the waterproof reinforcement extension 32 and the extrusion grooves 1112. On the other hand, the structural strength of the barrier body 111 is significantly improved, effectively preventing the occurrence of flexible deformation due to excessive external forces during assembly or specific application, thereby ensuring that the pin 21 is stably held for a long time, achieving the design purpose.

[0035] In order to further improve the waterproof performance of the wire-to-board connector male seat, as a further optimization of the above technical solution, such as Figure 7-12 As shown in the figure, an annular rubber groove 311 is formed on the circumferential side wall of the central embedded hole 31. There are multiple annular rubber grooves 311, which are arranged in an axial linear array along the central embedded hole 31 and are interconnected. During the workshop assembly stage, after the plastic water-blocking component 3 is in contact with the baffle 111, glue is applied to the pin 21 (as close to the plastic water-blocking component 3 as possible). The glue enters the annular rubber grooves 311 through the assembly gap formed between the pin 21 and the plastic water-blocking component 3, and the waterproof colloid 4 is formed. In this way, under the action of the waterproof colloid 4, the pin 21 can be connected to the plastic water-blocking component 3 as a whole, and the stability of the circumferential assembly gap being blocked can be greatly improved. In addition, due to the elastic holding force from the plastic water-blocking component 3, the above effectively prevents the occurrence of water or water vapor intrusion into the inner cavity of the connector male seat.

[0036] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wire-to-board connector male socket, comprising an insulating rubber seat and a pin assembly; the insulating rubber seat is formed by buckling a plastic shell and a rear cover; a baffle is formed in the plastic shell, and its inner cavity is additionally divided into a rear sub-cavity and a front sub-cavity; the pin assembly is composed of a plurality of pins that simultaneously cross the rear cover and the baffle and are arranged in a rectangular array; the rear cover and the baffle are respectively formed with rear and front embedding holes for the pins to be installed, characterized in that The male socket of the wire-to-board connector also includes a plastic water-blocking component; the plastic water-blocking component is placed in the rear sub-cavity and is in contact with the baffle body; the plastic water-blocking component is formed with a central embedding hole for the pin to be installed; and when the pin is assembled, its circumferential side wall is subjected to the elastic wrapping force from the plastic water-blocking component.

2. The wire-to-board connector male socket according to claim 1, characterized in that: Opposite to the central embedding hole, the front side wall of the plastic water-blocking component extends forward to form a plurality of waterproof reinforcement extensions; opposite to the front embedding hole, the rear side wall of the baffle body extends forward to form an extrusion groove for inserting the waterproof reinforcement extension; in the process of the plastic water-blocking component performing a displacement movement toward the baffle body to achieve contact, as the depth of the waterproof reinforcement extension increases, the circumferential side walls of the waterproof reinforcement extension body elastically shrink due to the lateral extrusion force, and the circumferential elastic wrapping force on the pin is increased accordingly.

3. The wire-to-board connector male socket according to claim 2, characterized in that: The longitudinal sections of the waterproof reinforcement extension and the extrusion groove are both trapezoidal.

4. The wire-to-board connector male socket according to claim 2, characterized in that: Located in its center, the front side wall of the plastic water-blocking component extends forward to form a set of criss-cross limiting protrusions. Correspondingly, the rear side wall of the partition body extends forward to form a set of criss-cross limiting grooves that are compatible with the set of criss-cross limiting protrusions.

5. The wire-to-board connector male socket according to any one of claims 1 to 4, characterized in that: An annular rubber groove is formed on the circumferential side wall of the central embedding hole; the annular rubber groove is multiple in number, arranged in an axial linear array along the central embedding hole, and interconnected; glue enters the annular rubber groove through the assembly gap formed between the pin and the plastic water-blocking component, and a waterproof colloid is formed.

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