A connector plug using in-mold forming

Abstract

The utility model relates to connector plug technical field especially utilize a kind of connector plug of in-mold forming, including pin component, wire component, component fixed shell, inner rubber layer and outer rubber layer, component fixed shell is provided with pin arrangement panel, pin connection hole position is opened in pin arrangement panel, pin arrangement panel is also formed with positioning sleeve, pin connection hole position is arranged in positioning sleeve, positioning sleeve is provided with pin positioning framework, pin component is docked in pin connection hole position, and pin component is positioned by pin positioning framework, one end of wire component is inserted into positioning sleeve and is electrically connected to pin component;Through the pin arrangement panel of component fixed shell, positioning sleeve and pin positioning framework, pin component, magnetic attraction structure etc. are accurately initially positioned, mold placement operation is greatly simplified, and component position deviation problem is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of connector plug technology, and in particular to a connector plug that utilizes in-mold forming. Background Technology

[0002] In the field of electronic device connectivity, connectors are key components for achieving circuit conduction and signal transmission, and their structural design directly affects the stability and reliability of the connection. Common connectors typically integrate positive and negative pins, communication pins, and magnetic terminals. The positive and negative pins are used for power transmission, the communication pins handle signal exchange, and the magnetic terminals use magnetic force to assist in quick alignment and stable connection between the plug and socket. To ensure the relative stability of each functional component, the positive and negative pins, communication pins, and magnetic terminals are usually designed as separate components located on the same side.

[0003] In the manufacturing process of connector plugs, to ensure that the positive and negative pins, communication connection pins, and magnetic terminals are securely and reliably fixed as a single unit, the industry commonly employs overmolding injection molding. Specifically, this involves placing the positive and negative pins, communication connection pins, and magnetic terminals together into an injection mold and using injection molding to form a single, integral unit, thus achieving a tight fit between the components. This traditional overmolding injection molding method, to a certain extent, meets the structural integrity requirements of connector plugs and has therefore been widely used for a considerable period.

[0004] However, as electronic devices increasingly demand higher precision and production efficiency from connector plugs, the drawbacks of traditional overmolding injection molding have become increasingly apparent. Since the positive and negative pins, communication connection pins, and magnetic terminals are three independent components, each needs to be placed into the mold one by one during overmolding injection molding. This not only makes the placement process cumbersome and increases the complexity of manual operation, but also makes it highly susceptible to inaccurate placement of components during repeated placements. Deviations in component position directly lead to insufficient dimensional accuracy and misalignment of pins with the magnetic terminals in the molded connector plug, thus affecting the mating accuracy between the connector plug and socket, reducing connection stability and reliability, and potentially even causing safety hazards such as circuit failures.

[0005] Therefore, in view of the problems of cumbersome operation and inaccurate component placement when using the overmolding injection molding method to produce existing connector plugs, it is necessary to propose an improved technical solution to optimize the structural design and manufacturing process of connector plugs, improve production efficiency and product quality, and ensure the connection performance and safety of connector plugs. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] A connector plug using in-mold forming includes a pin component, a wire component, a component fixing shell, an inner adhesive layer, and an outer adhesive layer. The component fixing shell is provided with a pin arrangement panel, which has pin connection holes. A positioning sleeve is also formed on the pin arrangement panel. The pin connection holes are located inside the positioning sleeve. A pin positioning structure is provided inside the positioning sleeve. The pin component mates with the pin connection holes and is positioned by the pin positioning structure. One end of the wire component extends into the positioning sleeve and is electrically connected to the pin component.

[0008] The inner rubber layer fills the interior of the positioning sleeve, and the pin arrangement panel has a blocking wall extending beyond the outer side of the positioning sleeve. The outer rubber layer abuts against the blocking wall and wraps the positioning sleeve and the inner rubber layer inside.

[0009] Preferably, the inner rubber layer has a filling portion located inside the positioning sleeve and an overflow portion located at the opening of the positioning sleeve. The cross-section of the overflow portion is larger than the cross-section of the positioning sleeve, and the other end of the wire component extends along the side of the overflow portion.

[0010] Preferably, the outer adhesive layer also extends laterally and is provided with a reinforcing portion that engages with the wire component.

[0011] Preferably, a plurality of square notches are provided around the open end of the positioning sleeve.

[0012] Preferably, there is a concave ring between the outer side of the positioning sleeve and the pin arrangement panel, and the outer adhesive layer fills the concave ring.

[0013] Preferably, at least one through hole communicating with the inside of the positioning sleeve is also provided in the concave ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The pin arrangement panel, positioning sleeve, and pin positioning architecture of the component fixing shell allow for precise initial positioning of pin components and magnetic structures, significantly simplifying mold placement and effectively avoiding component position deviations. The inner rubber layer fills the interior of the positioning sleeve, providing a stable initial fixation for each component and laying a solid foundation for the overall structure. The outer rubber layer not only wraps around the positioning sleeve and inner rubber layer for further reinforcement but also serves a decorative function, enhancing the product's appearance. Furthermore, the inner and outer rubber layers can be made of different materials. While achieving integrated integration of components, the inner rubber layer's material properties enhance structural strength, while the outer rubber layer's material optimizes the appearance, thereby comprehensively improving the connector plug's structural stability, connection reliability, production efficiency, and product aesthetics.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an exploded structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of this utility model;

[0021] Figure 4 This is a schematic diagram showing the disassembled structure of the pin component, wire pin, and component fixing shell in this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the component fixing shell in this utility model.

[0023] The reference numerals and names in the figure are as follows:

[0024] Pin component 10, positive pin 11, negative pin 12, communication pin 13, magnetic structure 14, wire component 20, component fixing shell 30, pin arrangement panel 31, pin connection hole 32, positioning sleeve 33, pin positioning structure 34, blocking wall 35, concave ring 36, through hole 37, square notch 38, inner rubber layer 40, filling part 41, overflow part 42, outer rubber layer 50, reinforcing part 51. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Please see Figures 1-5In this embodiment of the present invention, a connector plug formed by in-mold molding includes a pin component 10, a wire component 20, a component fixing shell 30, an inner adhesive layer 40, and an outer adhesive layer 50. The component fixing shell 30 is provided with a pin arrangement panel 31, on which pin connection holes 32 are opened. A positioning sleeve 33 is also formed on the pin arrangement panel 31. The pin connection holes 32 are located inside the positioning sleeve 33. A pin positioning structure 34 is provided inside the positioning sleeve 33. The pin component 10 is mated to the pin connection holes 32, and the pin component 10 is positioned by the pin positioning structure 34. One end of the wire component 20 extends into the positioning sleeve 33 and is electrically connected to the pin component 10.

[0027] In this technical solution, according to actual application requirements, a pin embodiment is exemplified. The pin component 10 has a positive pin 11, a negative pin 12, and a communication pin 13. The communication pin 13 has a circuit board. The three pins are respectively connected to three pin connection holes 32 that are set on the pin arrangement panel 31. The pin arrangement panel 31 has an adapter portion formed around the positive pin 11 and the negative pin 12 on the side facing away from the positioning sleeve 33, so that the pin component 10 of the connector plug is suitable for specific connection devices. In addition, the connector plug is also required to have a magnetic attraction structure 14 so that it can be sensed by magnetic attraction during connection. The magnetic attraction structure 14 is also connected by setting pin connection holes. If it is required to protrude from the connector plug like the pin component 10, the adapter portion wrapped around the magnetic attraction structure 14 can also be formed on the side of the pin arrangement panel 31 facing away from the positioning sleeve 33.

[0028] In this technical solution, the component fixing shell 30 is used to initially position the various components to be installed on the connector plug; and after the initial positioning, the two-layer encapsulation structure is used to further fix the various components. Specifically, the inner encapsulation layer 40 is filled inside the positioning sleeve 33, the pin arrangement panel 31 has a blocking wall 35 extending beyond the outer side of the positioning sleeve 33, the outer encapsulation layer 50 is mated to the blocking wall 35, and the positioning sleeve 33 and the inner encapsulation layer 40 are wrapped inside.

[0029] This technical solution uses the pin arrangement panel 31, positioning sleeve 33, and pin positioning architecture 34 of the component fixing shell 30 to accurately and initially position the pin component 10, magnetic structure 14, etc., greatly simplifying the mold placement operation and effectively avoiding component position deviation problems. The inner rubber layer 40 fills the inside of the positioning sleeve 33, which can form a stable initial fixation for each component and lay a solid foundation for the overall structure. The outer rubber layer 50 not only wraps the positioning sleeve 33 and the inner rubber layer 40 for further reinforcement, but also plays a decorative and aesthetic role, improving the appearance and texture of the product. At the same time, the inner rubber layer 40 and the outer rubber layer 50 can be made of different materials. On the basis of achieving the integrated combination of each component, the structural strength can be enhanced by the material properties of the inner rubber layer 40, and the appearance can be optimized by the material of the outer rubber layer 50, thereby comprehensively improving the structural stability, connection reliability, production efficiency, and product aesthetics of the connector plug.

[0030] Specifically, the inner rubber layer 40 is made of high-temperature resistant insulating material, which can insulate and isolate each pin while preventing the material from melting due to excessive heat during use; while the outer rubber layer 50 does not need to support the pin component 10. It can be made of soft material, which can make the overall exterior drop-resistant, enhance the tactile feel when holding it, and improve the comfort of using the connector plug.

[0031] Please see Figures 2-5 Based on the above technical solution, it is further proposed that the inner coating layer 40 has a filling portion 41 located inside the positioning sleeve 33 and an overflow portion 42 located at the opening of the positioning sleeve 33. The cross-section of the overflow portion 42 is larger than the cross-section of the positioning sleeve 33, and the other end of the wire component 20 extends along the side of the overflow portion 42. The outer coating layer 50 also has a reinforcing portion 51 extending laterally and engaging with the wire component 20. Multiple square notches 38 are provided around the opening end of the positioning sleeve 33. In the further proposed technical solution, the filling portion 41 of the inner coating layer 40 can fully fill the interior of the positioning sleeve 33. Combined with the multiple square notches 38 at the opening end of the positioning sleeve 33, it can enhance the connection strength between the inner coating layer 40 and the positioning sleeve 33 and prevent them from separating. The cross-section of the overflow portion 42 is larger than the cross-section of the positioning sleeve 33, which can increase the contact area with the outer coating layer 50 and improve the overall structural bonding stability. At the same time, the other end of the wire component 20 extends along the side of the overflow portion 42, which can adapt to the product's requirements for wire arrangement. The reinforcing portion 51 of the outer rubber layer 50 extends laterally and engages with the wire component 20, effectively strengthening the connection between the wire and the plug body and reducing the risk of the wire falling off under stress. These designs further enhance the structural reliability and durability of the connector plug, extending the product's service life.

[0032] Please see Figures 4-5Based on the above technical solution, it is further proposed that the outer side of the positioning sleeve 33 and the pin arrangement panel 31 have an inner concave ring 36, and the outer adhesive layer 50 fills the inner concave ring 36. At least one through hole 37 communicating with the inside of the positioning sleeve 33 is also provided in the inner concave ring 36. In a further proposed technical solution, the concave ring 36 between the outer side of the positioning sleeve 33 and the pin arrangement panel 31 can be filled by the outer adhesive layer 50, which increases the contact area and bonding tightness between the outer adhesive layer 50 and the component fixing shell 30, effectively preventing loosening or separation between the outer adhesive layer 50 and the component fixing shell 30; the through hole 37 opened at the concave ring 36 to connect the inner adhesive layer 40 and the outer adhesive layer 50 through the through hole 37, forming an "anchoring" structure, further strengthening the overall bonding strength between the inner and outer adhesive layers 50 and the component fixing shell 30, avoiding relative displacement between the layers, significantly improving the structural stability and impact resistance of the connector plug, and ensuring that it maintains good connection effect and durability in long-term use.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A connector plug using in-mold forming, characterized in that, The device includes a pin component (10), a wire component (20), a component fixing shell (30), an inner rubber layer (40), and an outer rubber layer (50). The component fixing shell (30) is provided with a pin arrangement panel (31). The pin arrangement panel (31) is provided with a pin connection hole (32). The pin arrangement panel (31) is also formed with a positioning sleeve (33). The pin connection hole (32) is located inside the positioning sleeve (33). The positioning sleeve (33) is provided with a pin positioning structure (34). The pin component (10) is mated to the pin connection hole (32), and the pin component (10) is positioned by the pin positioning structure (34). One end of the wire component (20) extends into the positioning sleeve (33) and is electrically connected to the pin component (10). The inner rubber layer (40) fills the interior of the positioning sleeve (33), and the pin arrangement panel (31) has a blocking wall (35) extending beyond the outer side of the positioning sleeve (33). The outer rubber layer (50) abuts against the blocking wall (35) and encloses the positioning sleeve (33) and the inner rubber layer (40).

2. A connector plug formed by in-mold molding according to claim 1, characterized in that, The inner rubber layer (40) has a filling portion (41) located inside the positioning sleeve (33) and an overflow portion (42) located at the opening of the positioning sleeve (33). The cross-section of the overflow portion (42) is larger than the cross-section of the positioning sleeve (33), and the other end of the wire component (20) extends along the side of the overflow portion (42).

3. A connector plug formed by in-mold molding according to claim 2, characterized in that, The outer coating layer (50) also has a reinforcing part (51) that connects to the wire component (20) extending laterally.

4. A connector plug formed by in-mold molding according to claim 2, characterized in that, Multiple square notches (38) are provided around the open end of the positioning sleeve (33).

5. A connector plug formed by in-mold molding according to claim 1, characterized in that, The outer side of the positioning sleeve (33) has a concave ring (36) between it and the pin arrangement panel (31), and the outer adhesive layer (50) fills the concave ring (36).

6. A connector plug formed by in-mold molding according to claim 5, characterized in that, At least one through hole (37) is provided in the concave ring (36) to communicate with the inside of the positioning sleeve (33).

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