0.5mm pitch ultra-micro rectangular connector

Abstract

This utility model belongs to the field of electrical connector technology, and discloses a 0.5 mm pitch ultra-micro rectangular connector. The connector has a plug end (free-moving end) and a socket end (fixed mounting end). The contact spacing is 0.5 × 0.5 mm, with six different core count options: 9, 15, 21, 25, 31, and 37. The plug mainly consists of a metal shell (rectangular tail and protruding insertion part), an insulating base, a pin assembly with wires, and a locking screw; the socket mainly consists of a metal shell (rectangular with slot), an insulating base, a socket assembly with wires, and a mounting lock nut. The protruding insertion part of the plug end's metal shell can be inserted into the slot of the socket end's metal shell, and the locking screw and mounting lock nut are screwed together to lock the connector in place. This connector has advantages such as small size, light weight, high density, and high reliability, and can solve the application problems of existing connectors in scenarios with limited size and cost.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to an ultra-miniature rectangular connector, which can be widely used in aviation, aerospace, military equipment, electronics, industrial control and other industries, and is mainly used to solve the interconnection problem between systems or modules. Background Technology

[0002] In modern electronic devices and various systems, connectors are crucial components for signal transmission, and their importance is self-evident. However, common connectors have many problems, such as complex structure, large size, and high cost. Taking traditional rectangular connectors as an example, even a common 0.635mm pitch miniature rectangular connector is still too large in some space-constrained scenarios. For instance, in scenarios such as circuit board connections in micro-drones and internal module interconnection in smartphones, 0.635mm pitch connectors cannot meet the device's need for optimized internal space. At the same time, traditional connectors have limited integration in high-density signal transmission scenarios, failing to provide a variety of signal channel options, leading to increased inventory costs and greater difficulty in selection for users. In addition, some traditional connectors use a snap-fit ​​connection method, which is prone to loosening under complex environments such as vibration and impact, affecting the reliability of signal transmission. Utility Model Content

[0003] This invention aims to provide an ultra-micro rectangular connector to address the shortcomings of existing connectors in terms of size, cost, and performance. The connector includes a plug and a socket that interlock, and features a small size, minimal space occupation, and light weight.

[0004] This utility model discloses a 0.5 mm pitch ultra-micro rectangular connector with a contact spacing of 0.5 × 0.5 mm and six possible core count arrangements: 9, 15, 21, 25, 31, and 37. Its innovation lies in achieving a smaller pitch design, reducing the spatial volume by approximately 42% compared to the existing smallest micro-rectangular connector (0.635 mm pitch), thus better meeting the client's need for minimal space.

[0005] The plug end is a free-moving end, and the socket end is a fixed installation end; the plug end includes a rectangular tail, a protruding insertion part of the plug metal shell, an insulating base, a pin assembly with wires, and a locking screw; the socket end includes a rectangular socket metal shell with slots, an insulating base, a socket assembly with wires, and a mounting locking nut.

[0006] As a further preferred embodiment, the protruding insertion portion of the plug metal housing can be inserted into the slot portion of the socket end metal housing, and the two ends of the rectangular tail of the plug metal housing are designed with locking screws, the tail screws of which can be screwed into the internal threaded holes of the locking nuts at both ends of the socket end metal housing.

[0007] As a further preferred embodiment, the pin assembly is disposed in each hole of the insulating base one, and the socket assembly is disposed in each hole of the insulating base two and extends a certain distance above the base surface. The pin assembly includes a pin head and a pin body, which are formed by crimping the pin head and pin body together. The inner hole of the socket assembly mates with the pin tip of the pin assembly.

[0008] As a further preferred embodiment, the metal shell of the plug is provided with threaded holes on both sides of the tail end, which cooperate with the locking screw; the metal shell of the socket end is provided with structural holes on both sides, which cooperate with the installation of locking nuts.

[0009] As a further preferred embodiment, the core number pattern arrangement includes six types: 9, 15, 21, 25, 31, and 37. As a further preferred embodiment, the slotted head of the locking screw cooperates with a screwdriver for tightening the locking screw and installing the locking nut.

[0010] As a further preferred embodiment, the protruding insertion portion of the plug's metal housing and the slot of the socket's metal housing are in a plug-in fit.

[0011] As a further preferred embodiment, the plug end and the socket end are combined into one piece after being potted and cured with adhesive.

[0012] The key connection of this utility model lies in the fact that the protruding insertion part of the metal shell at the plug end can be inserted into the slot part of the metal shell at the socket end, and the tail screw of the locking screw at the plug end can be screwed into the internal threaded hole of the locking nut at the socket end, thereby realizing the mutual insertion and locking of the plug and socket. Among them, the cooperation between the locking screw and the locking nut is the key component for achieving a reliable connection of the connector, and its connection method ensures the stability and firmness of the connection.

[0013] Compared with the prior art, the present invention has at least the following significant advantages: First, this utility model is smaller in size: the contact arrangement spacing is only 0.5×0.5mm, which is about 42% smaller in space volume compared with the existing smallest micro rectangular connector (0.635mm spacing). It can better meet the application scenarios with extremely high requirements for connector size, such as in environments with limited space, such as inside micro electronic devices and between high-density circuit boards, and can effectively save space resources.

[0014] Secondly, this utility model has a higher degree of integration: the number of cores can be arranged in six ways, including 9, 15, 21, 25, 31 and 37. It can realize a variety of different signal transmission channels within a limited space, which improves the versatility and flexibility of the connector, can adapt to the interconnection needs between different systems or modules, and reduces the user's inventory costs and selection difficulty.

[0015] Third, the present invention provides a more reliable connection: the locking screw and the installation locking nut cooperate to achieve a tight connection between the plug and the socket through a screwing method. Compared with the traditional snap-fit ​​or other simple connection methods, the connection is more stable and firm, which can effectively prevent the connection from loosening, ensure the reliability of electrical signal or energy transmission, and maintain good electrical performance in complex environments such as vibration and impact.

[0016] Finally, this utility model has a compact and reasonable structure: the pin assembly and the socket assembly are respectively set in the holes of the insulating base (including corresponding insulating base one and insulating base two), and the socket assembly is raised a certain distance above the base surface. This structural design allows the plug and socket to be accurately aligned and smoothly inserted during mating, ensuring good electrical contact performance. At the same time, the insulating base (including corresponding insulating base one and insulating base two) provides electrical insulation and mechanical support for the pin assembly and the socket assembly, improving the safety and reliability of the connector. In addition, the metal shells of the plug end and the socket end not only provide mechanical protection but also provide a certain degree of electromagnetic shielding to prevent electromagnetic interference from affecting signal transmission. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the core number spectrum arrangement of the connector described in this utility model.

[0018] Figure 2 is a schematic diagram of the internal structure of the plug with wires described in this utility model.

[0019] Figure 3 is a schematic diagram of the internal structure of the socket with wires described in this utility model.

[0020] Figure 4 is a schematic diagram of the 0.5 mm pitch ultra-micro rectangular connector plug structure of this utility model.

[0021] Figure 5 is a schematic diagram of a 0.5 mm pitch ultra-micro rectangular connector socket structure according to the present invention.

[0022] Figure 6 is a schematic diagram of the mating of a 0.5 mm pitch ultra-micro rectangular connector plug and socket according to the present invention.

[0023] Explanation of reference numerals in the attached figures: 1-Plug metal shell, 2-Insulating base one, 3-Pin assembly, 4-Locking screw, 5-Socket metal shell, 6-Insulating base two, 7-Socket assembly, 8-Mounting locking nut, 9-Wire, 10-Adhesive; 1-a-Rectangular tail of outer shell, 1-b-Protruding insertion part of outer shell, 1-c-Threaded hole structure at the tail end of outer shell, 3-a-Pin head of pin assembly, 3-b-Pin body of pin assembly, 4-a-Slotted head of locking screw, 5-a-Outer shell slot, 7-a-Inner hole of insertion hole, 8-a-Threaded hole structure for nut locking, 8-b-Threaded hole structure for nut mounting. Detailed Implementation

[0024] The preferred embodiments of this utility model will be described in detail below to provide a clearer understanding of its purpose, features, and advantages. It should be understood that the following embodiments are not intended to limit the scope of this utility model, but are merely illustrative of its essential spirit.

[0025] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0026] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "in an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any way in one or more embodiments.

[0027] The following detailed description of a 0.5 mm pitch ultra-micro rectangular connector according to the present invention is provided in conjunction with the accompanying drawings: Figure 1 shows the pin count configuration of the connector described in this invention. The pin count configuration includes six types: 9, 15, 21, 25, 31, and 37. Different pin counts can meet various signal transmission requirements.

[0028] As shown in Figure 2, the needle tip 3-a and the needle body 3-b are crimped together to form a pin assembly 3, which is then crimped together with the wire 9 to form a pin assembly with a wire. Specifically, the end of the wire 9 is crimped to the needle body 3-b of the pin assembly 3, ensuring a tight connection between the wire and the pin assembly, forming a reliable electrical connection. This crimping method is simple to operate, provides a strong connection, and ensures good electrical contact performance.

[0029] As shown in Figure 3, the socket assembly 7 and the wire 9 are crimped together to form a wire-connected socket. Similarly, the end of the wire 9 is crimped to the socket assembly 7 to ensure a tight connection between the wire and the socket assembly, forming a reliable electrical connection. The inner hole 7-a of the socket assembly 7 mates with the pin 3-a of the pin assembly 3. When the plug and socket are connected, the pin of the pin assembly can be smoothly inserted into the inner hole of the socket assembly to achieve an electrical connection.

[0030] As shown in Figure 4, the pin assembly 3 with the wire 9, the insulating base 2, and the plug metal shell 1 are assembled into a single unit after being potted and cured with adhesive 10. Then, a locking screw 4 is installed in the threaded hole structure 1-c at the tail 1-a of the rectangular block of the metal shell, thus forming the 0.5 mm pitch ultra-micro rectangular connector plug. During assembly, the pin assembly 3 is first inserted into the corresponding hole of the insulating base 2, then the wire 9 is connected to the pin assembly 3. Next, the insulating base 2 is placed into the plug metal shell 1, and finally, the adhesive 10 is used for potting and curing, ensuring a tight bond between the pin assembly, the insulating base, and the metal shell. Afterward, the locking screw 4 is screwed into the threaded hole structure 1-c at the tail 1-a of the metal shell, completing the plug assembly.

[0031] As shown in Figure 5, the socket assembly 7 with the wire 9, the insulating base 6, and the metal shell 5 of the socket are assembled into a single unit after being potted and cured with adhesive 10. Then, locking nuts 8 are installed in the structural holes at both ends of the metal shell 5, thus forming the 0.5 mm pitch ultra-micro rectangular connector socket. During assembly, the socket assembly 7 is first inserted into the corresponding hole of the insulating base 6, so that the inner hole 7-a of the socket assembly is a certain distance above the base surface. Then, the wire 9 is connected to the socket assembly 7. Next, the insulating base 6 is placed into the metal shell 5 of the socket. Finally, the socket assembly, insulating base 6, and metal shell are potted and cured with adhesive 10, ensuring a tight bond between the socket assembly, insulating base 6, and metal shell. Afterward, the locking nuts 8 are screwed into the structural holes of the metal shell 5, completing the socket assembly.

[0032] As shown in Figure 6, during connection, the protruding insertion portion 1-b of the connector plug metal housing 1 is aligned with the slot 5-a of the connector socket metal housing 5. Force is applied in the mating direction to engage the plug and socket. Simultaneously, the pin tip 3-a of the plug end enters the inner hole 7-a of the socket end. During engagement, a screwdriver is used to tighten the slotted head 4-a of the locking screw 4 on the plug end, causing the threaded end of the locking screw 4 to engage with the locking threaded hole structure of the mounting locking nut 8 on the socket end.

[0033] Working principle; This utility model discloses a 0.5 mm pitch ultra-micro rectangular connector. Its working principle is to achieve secure electrical signal transmission through the tight fit between the plug and socket. When the pin assembly 3 at the plug end mates with the socket assembly 7 at the socket end, the pin tip 3-a enters the inner hole 7-a of the socket assembly, forming a stable electrical contact. Simultaneously, the locking screw 4 engages with the locking nut 8, providing mechanical support between the plug and socket, ensuring the connection's firmness and stability. In the mating state, the pin assembly and socket assembly are in close contact, ensuring stable electrical signal transmission; the engagement of the locking screw and locking nut ensures a tight connection between the plug and socket, preventing loosening and improving the reliability and stability of the connection. The metal housings 1 and 5 provide mechanical protection and a certain degree of electromagnetic shielding for the internal components of the connector, enabling the connector to operate normally in complex environments.

[0034] Work process; Assemble the plug: First, insert the pin assembly 3 into the corresponding hole of the insulating base 2. Then, connect the wire 9 to the pin assembly 3. Next, place the insulating base 2 into the plug's metal housing 1. Finally, use adhesive 10 to pot and cure, ensuring the pin assembly, insulating base 2, and metal housing are tightly joined together. Afterward, screw the locking screw 4 into the threaded hole structure 1-c of the tail 1-a of the metal housing to complete the plug assembly.

[0035] Assemble the socket: First, insert the socket assembly 7 into the corresponding hole of the insulating base 6, ensuring that the inner hole 7-a of the socket assembly protrudes a certain distance above the base surface. Then, connect the wire 9 to the socket assembly 7. Next, place the insulating base 6 into the socket's metal housing 5. Finally, use adhesive 10 to pot and cure the joint, ensuring a tight bond between the socket assembly, the insulating base 6, and the metal housing. Afterward, screw the locking nut 8 into the structural hole of the metal housing 5 to complete the socket assembly.

[0036] Plug and socket mating: Align the protruding insertion portion 1-b of the connector plug metal housing 1 with the slot 5-a of the connector socket metal housing 5, and apply force in the mating direction to mate the plug and socket. Simultaneously, the pin tip 3-a of the plug end enters the inner hole 7-a of the socket end. During mating, use a screwdriver to turn the slotted head 4-a of the locking screw 4 on the plug end, causing the threaded end of the locking screw 4 to engage with the locking threaded hole structure of the mounting locking nut 8 on the socket end.

[0037] Connection method; Preliminary alignment of plug and socket: Align the protruding insertion part 1-b of the plug metal shell 1 with the slot 5-a of the socket metal shell 5, ensuring that the central axes of the two are basically coincident, in preparation for subsequent mating operations.

[0038] Plug and socket mating: Apply appropriate pressure to the plug along the mating direction to gradually insert it into the socket. During mating, the pin 3-a of the plug assembly gradually enters the inner hole 7-a of the socket assembly, and the contact pressure between the two gradually increases until they are fully mated.

[0039] Engaging the locking screw with the locking nut: After the plug and socket are properly inserted, use a screwdriver to insert into the slotted head 4-a of the locking screw 4 and rotate the screw clockwise until its threaded end gradually engages with the locking threaded hole of the locking nut 8. During rotation, apply appropriate torque to ensure a tight and secure connection between the locking screw and the locking nut.

[0040] Connection Status Inspection: After tightening the locking screws and installing the locking nuts, inspect the connector's connection status. This includes checking the tightness of the plug and socket, ensuring the locking screws are properly tightened, and verifying that all components are secure or undamaged. If any problems are found, adjust or repair them promptly to ensure the connector is in good working order.

[0041] After completing the above steps, the 0.5 mm pitch ultra-micro rectangular connector plug and socket achieve a reliable and secure mating, enabling the safe transmission of electrical signals or energy. In the mated state, the pin assembly and socket assembly are in close contact, ensuring stable electrical signal transmission; the screw-on connection of the locking screw and the mounting locking nut ensures a tight connection between the plug and socket, preventing loosening and improving the reliability and stability of the connection. Simultaneously, the metal housing provides mechanical protection and a certain degree of electromagnetic shielding for the internal components of the connector, enabling it to operate normally in complex environments.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A 0.5 mm pitch ultra-micro rectangular connector, wherein the contact spacing is 0.5 × 0.5 mm, characterized in that: It includes a plug end and a socket end, wherein the plug end is a free-moving end and the socket end is a fixed installation end; the plug end includes a plug metal shell (1) with a rectangular tail (1-a) and a protruding insertion part (1-b), an insulating base one (2), a pin assembly (3) with a wire (9), and a locking screw (4); the socket end includes a socket metal shell (5) with a rectangular slot (5-a), an insulating base two (6), a socket assembly (7) with a wire (9), and a mounting locking nut (8).

2. A 0.5 mm pitch ultra-micro rectangular connector according to claim 1, characterized in that: The protruding insertion part (1-b) of the plug metal shell (1) can be inserted into the slot (5-a) of the socket end metal shell (5). The two ends of the rectangular tail (1-a) of the plug metal shell (1) are designed with locking screws (4). The tail screw of the locking screw (4) can be screwed into the internal thread hole of the mounting locking nut (8) at both ends of the socket end metal shell (5).

3. A 0.5 mm-pitch ultra-small rectangular connector according to claim 1, characterized by: The pin assembly (3) is disposed in each hole of the insulating base one (2), and the socket assembly (7) is disposed in each hole of the insulating base two (6) and is higher than the base surface.

4. A 0.5 mm-pitch ultra-small rectangular connector according to claim 2, characterized by: The rectangular metal shell (1) of the plug has symmetrically arranged threaded hole structures (1-c) on both sides of the tail (1-a) to cooperate with the locking screw (4); the metal shell (5) of the socket end has symmetrically arranged structural holes on both sides to cooperate with the installation locking nut (8).

5. A 0.5 mm-pitch ultra-small rectangular connector according to claim 3, characterized by: The insert assembly (3) includes a needle tip (3-a) and a needle body (3-b), which are formed by crimping the needle tip (3-a) and the needle body (3-b) together.

6. A 0.5 mm-pitch ultra-small rectangular connector according to claim 3, characterized by: The inner hole (7-a) of the socket assembly (7) is engaged with the pin (3-a) of the pin assembly (3).

7. A 0.5 mm-pitch ultra-small rectangular connector according to claim 1, characterized by: The slotted head (4-a) of the locking screw (4) is engaged with a tool screwdriver for screwing the locking screw (4) and installing the locking nut (8).

8. A 0.5 mm-pitch ultra-small rectangular connector according to claim 2, characterized by: The protruding insertion part (1-b) of the plug metal shell (1) and the slot (5-a) of the socket end metal shell (5) are engaged.

9. A 0.5 mm-pitch ultra-small rectangular connector according to claim 1, characterized by: The plug end and the socket end are combined into one piece after being potted and cured with adhesive (10).

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