Inter-board electric connector with error correction function

Abstract

The inter-board electric connector with the error correction function comprises a socket shell, a movable insulator, a double-end reed claw and a contact pin structure, bolt holes are formed in the two sides of the socket shell, bolts are installed in the bolt holes, bolt clamping sleeves used for limiting the bolts are arranged in the bolt holes, and the movable insulator and the double-end reed claw are arranged in the socket shell. The bolts are fixed to the two sides of the socket shell through the bolt clamping sleeves, mistake-proof inserting grooves are formed in the two sides of the top of the socket shell, clamping grooves are formed in the bottoms of the four edges of an inner cavity of the socket shell, pin installation holes are formed in the socket shell in an inserted mode, and first steps are arranged in the pin installation holes. The movable insulator is located in the socket shell, and a double-end reed claw mounting hole is formed in the movable insulator. According to the utility model, the double-end reed claw is used as an elastic contact body and is in interference fit contact with the pins of the rigid bodies at the two ends to realize connection, and the error correction capability when the connector is plugged is realized through the fit clearance between the movable insulator and the socket shell.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically an inter-board electrical connector with error correction function. Background Technology

[0002] With the continuous development of connectivity technology in the electronics industry, chassis are becoming smaller and lighter, and miniaturization and cable elimination of inter-board connectors are becoming the development direction for every company. Due to the decreasing distance between PCBs, inter-board connectors require sufficient installation space for cable connections. Furthermore, the cables must maintain high stability under high-speed vibration and impact; otherwise, the connector cables may detach under high-speed vibration and impact, leading to signal transmission failures.

[0003] Existing inter-board connectors in China use a spring-loaded pin structure. The spring-loaded pin contacts the socket surface under the extension of an internal compression spring, establishing a conductive connection. However, under high-speed vibration and impact, the spring-loaded pin contracts, causing a momentary break in the connector connection. This directly affects the reliability and stability of the connector, leading to failure. Therefore, those skilled in the art have developed an inter-board connector with error correction functionality to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to provide an inter-board electrical connector with error correction function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An inter-board electrical connector with error correction function includes a socket housing, a movable insulator, a double-ended spring claw, and a pin structure. The socket housing has bolt holes on both sides, with bolts installed inside each hole. Bolt sleeves for securing the bolts are also provided inside the bolt holes, and the bolts are fixed to the sides of the socket housing by the bolt sleeves. Error-proof slots are provided on both sides of the top of the socket housing, and slots are provided at the bottom of the four sides of the inner cavity of the socket housing. Pin mounting holes are inserted into the socket housing, and a first step is provided inside each pin mounting hole. The movable insulator is located inside the socket housing, and a double-ended spring claw mounting hole is provided in the movable insulator. A second step is provided inside each double-ended spring claw mounting hole. The two-step mounting platform is used to hold the double-headed spring claw. The movable insulator is provided with elastic buckles on all four sides and guide positioning holes on both sides. The double-headed spring claw mounting hole is provided with a movable double-headed spring claw. The double-headed spring claw includes a middle main body. The middle main body is provided with a mounting platform. The two ends of the middle main body are respectively provided with six front spring pieces and six rear spring pieces. The pin structure is fixed to the pin mounting hole of the socket housing with A / B epoxy resin. The pin structure includes a middle mounting platform, a pin head and a pin body. One end of the pin body is provided with a pin head, and the middle mounting platform is provided in the middle of the pin body. The pins of the pin body on the pin structure are fixed to the PCB board by bolts.

[0007] As a further improvement of this utility model: the movable insulator can move in three directions (X / Y / Z) inside the socket housing through the mating gap. When it is inserted with the plug, the movable insulator is moved to the correct position through the positioning function of the guide positioning hole, thereby realizing the smooth insertion of the connector contacts and reducing the increase of internal stress in the contacts caused by insertion deviation, which can lead to poor electrical performance stability of the connector and, in severe cases, breakage.

[0008] As a further improvement of this utility model: the front six spring pieces and the rear six spring pieces are conical after being closed. The top hole of the conical shape is provided with a chamfer. The chamfer has a guiding function, which makes it easy for the pin structure to be smoothly inserted into the double-headed spring claw when the plug is inserted, so as to realize the connection of the connector.

[0009] As a further embodiment of this utility model: the six rear end spring pieces on the double-headed spring claw are connected to the pin structure on the socket housing and fixed by a movable insulator. The six rear end spring pieces on the double-headed spring claw cannot be detached and can only rotate on the pin body on the pin structure and move up and down along the insertion direction.

[0010] As a further improvement of this utility model: the movable insulator is tightly connected to the slot on the socket housing through the elastic function of the elastic buckle, and the outer dimensions of the movable insulator are designed with a gap between the inner cavity of the socket housing and the outer dimensions of the movable insulator. The gap connector can realize movement in the X / Y / Z directions, thereby correcting the incorrect position when the connector is inserted.

[0011] As a further improvement of this utility model: the connector plug guide pin first enters the guide positioning hole of the movable insulator for positioning, and then the connector contacts are inserted.

[0012] As a further improvement of this utility model: the second step can prevent the double-headed spring claw from falling off during use, and the double-headed spring claw can move in the X / Y / Z directions within the mounting hole through the mating gap of the double-headed spring claw mounting hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, the double-headed spring claw acts as an elastic contact body, which makes interference fit contact with the pins of the rigid bodies at both ends to achieve connection. The error correction capability is achieved when the connector is plugged in by the gap between the movable insulator and the socket housing.

[0015] 2. This utility model has the characteristics of both low insertion and extraction force and high contact reliability.

[0016] 3. This utility model uses a double-headed, six-spring-piece structure, which has high mechanical life index for insertion and separation and long service life.

[0017] 4. The connector structure of this utility model can maintain stable product performance under high-speed vibration and impact, and is widely used in aviation, aerospace, weaponry, shipbuilding, communications and other fields.

[0018] 5. The double-headed spring claw in this utility model is used in conjunction with the rigid pin as a core component, and can realize the function of electrical signal / power transmission during docking.

[0019] 6. In this utility model, the double-headed spring claw is integrally machined, so the connector will not experience poor contact due to the failure of the spring pin's elasticity during insertion.

[0020] 7. The connector products of this utility model have good consistency in quality, high reliability and stability, simple structure, low processing cost, and strong market competitiveness. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an inter-board electrical connector with error correction function;

[0022] Figure 2 A top view of an inter-board electrical connector with error correction functionality;

[0023] Figure 3 This is a schematic diagram of the mounting structure of a movable insulator in an inter-board electrical connector with error correction function;

[0024] Figure 4 This is a schematic diagram of the mounting structure of a pin body in an inter-board electrical connector with error correction function;

[0025] Figure 5 This is a schematic diagram of a double-headed spring claw in an inter-board electrical connector with error correction function;

[0026] Figure 6 This is a schematic diagram of the plug and socket pairing structure in an inter-board electrical connector with error correction function.

[0027] In the diagram: 1. Socket housing; 1-1. Bolt hole; 1-2. Bolt; 1-3. Bolt sleeve; 1-4. Anti-misalignment slot; 1-5. Slot; 1-6. Pin mounting hole; 1-7. First step; 2. Movable insulator; 2-1. Double-headed spring claw mounting hole; 2-2. Second step; 2-3. Elastic buckle; 2-4. Guide positioning hole; 3. Double-headed spring claw; 3-1. Hanging platform; 3-2. Six front spring pieces; 3-3. Six rear spring pieces; 3-4. Middle main body; 4. Pin structure; 4-1. Middle hanging platform; 4-2. Pin head; 4-3. Pin body. Detailed Implementation

[0028] Please see Figures 1-6 In this embodiment of the utility model, an inter-board electrical connector with error correction function is composed of a socket housing 1, a movable insulator 2, a double-headed spring claw 3, and a pin structure 4.

[0029] Socket Housing 1: Socket housing 1 is injection molded from engineering plastic PPS, which is environmentally resistant and has high strength. It mainly serves to protect the connector from high-speed vibration and impact, and also provides electrical shielding. Bolt holes 1-1 are provided on both sides, and bolts 1-2 are installed thereon. Bolt sleeves 1-3 are hidden inside the bolt holes 1-1 on the bolts 1-2. This design facilitates the secure installation of the connector with external equipment. In practical applications, such as when connecting to aviation equipment or communication base station equipment, the bolts 1-2 can be tightened to the corresponding mounting parts, while the bolt sleeves 1-3 provide auxiliary fixation and protection for the bolts 1-2. The top of socket housing 1 has anti-misfit slots 1-4 on both sides. When the mating plug is inserted into the socket, the anti-misfit slots 1-4 prevent incorrect insertion. If the insertion direction is incorrect, the plug cannot be inserted into the socket, and the connector will not conduct. Furthermore, blind mating can be used in special environments to ensure correct connector insertion and connection. The socket housing 1 has four slots 1-5 at the bottom of its inner cavity. The slots 1-5, through the action of the elastic buckles 2-3 on the movable insulator 2, effectively prevent the movable insulator 2 from coming out. The socket housing 1 has a pin mounting hole 1-6. A first step 1-7 is provided in the pin mounting hole 1-6. This first step 1-7 is used to lock the middle mounting platform 4-1 of the pin structure 4, effectively preventing the contact of the pin structure 4 from coming out.

[0030] Movable Insulator 2: Located inside the socket housing 1, the movable insulator 2 is injection molded from engineering plastic PEI, exhibiting good resistance to high and low temperatures, high insulation resistance, high voltage resistance, dimensional stability, and good consistency. The movable insulator 2 has a double-ended spring claw mounting hole 2-1, within which a second step 2-2 is provided. This second step 2-2 is used to lock the central mounting platform 3-1 of the double-ended spring claw 3, preventing the contact of the double-ended spring claw 3 from retracting. Its material properties provide good insulation protection for internal electronic components while also possessing a certain mechanical strength, ensuring electrical connection stability under different operating environments. Each of the four sides of the movable insulator 2 has an elastic latch 2-3. The elasticity of the latch 2-3 ensures a tight connection with the socket housing 1. The movable insulator 2 has a gap between its external dimensions and the internal cavity of the socket housing 1, allowing for movement in the X / Y / Z directions via a gap connector, thus correcting misalignment during connector insertion. The elastic latch 2-3, through the action of the slot 1-5 on the socket housing 1, effectively prevents the movable insulator 2 from retracting. The movable insulator 2 has guide positioning holes 2-4 on both sides. When the mating plug is inserted, the guide pin on the plug is positioned in conjunction with the guide positioning holes 2-4 of the movable insulator 2. The electrical connector can maintain electrical performance reliability, stability and service life under high-speed vibration and impact.

[0031] The double-headed spring claw 3 is the core component of this connector. The double-headed spring claw 3 includes a central body 3-4, on which a mounting platform 3-1 is provided. Six front spring contacts 3-2 extend from the front end of the central body 3-4, and six rear spring contacts 3-3 extend from the rear end of the central body 3-4. The double-headed spring claw 3 is integrally machined from a high-performance beryllium bronze rod. Figure 6 As shown. This beryllium bronze exhibits excellent performance in tensile strength, elongation, Rockwell hardness, conductivity, and bending ratio. The material also possesses excellent elasticity and superior crimping ductility. The double-headed spring claw 3 is integrally machined using a spindle machine, resulting in a stable contact structure, good consistency, high strength, and facilitating large-scale production, thereby reducing production costs. The double-headed spring claw 3 boasts high structural strength, demonstrating outstanding performance in vibration resistance, impact resistance, and mechanical lifespan. Furthermore, it involves fewer and simpler processes, simplifies quality control, and meets customer product performance requirements and delivery schedules.

[0032] The central main body 3-4 has a circular mounting platform 3-1, which is connected to the second step 2-2 of the double-ended spring claw mounting hole with a clearance fit. This not only prevents the double-ended spring claw 3 from falling off and ensures stable installation, but also reduces the internal stress of the double-ended spring claw 3 when the electrical connector is misaligned. In actual use, this elastic structure can buffer external force compression through its own error correction capability when subjected to vibration or impact, ensuring stable contact with the external rigid socket.

[0033] The six spring pieces 3-3 at the rear end of the double-headed spring claw 3 are connected to the pin structure 4 on the socket. Due to the fixing effect of the movable insulator 2, the spring pieces of the double-headed spring claw cannot be disengaged. They can only rotate at the pin head 4-2 and move up and down along the mating direction.

[0034] The front end extends into six spring contacts 3-2, which are formed by six evenly distributed spring contacts with tapered ends. The tops of the spring contacts taper inward, and the front ends of the spring contacts have guide chamfers. When the connector is mated with an external rigid pin, this special spring contact structure can provide good insertion and separation forces, thereby achieving a reliable electrical connection. It also helps to reduce insertion and extraction forces, meeting the standard specification of 1.0N to 4.0N separation force for each contact.

[0035] The six spring pieces 3-3 at the rear end of the double-headed spring claw 3 are formed by the converging of six evenly distributed spring pieces. The inner surface of the converging is tightly wrapped around the pin head 4-2 on the socket, thereby realizing the connection of the contact. In actual contact with the pin head 4-2, the six spring pieces 3-3 at the rear end of the double-headed spring claw 3 can be deflected at an angle along the pin axis, thereby achieving the error correction function of the electrical connector and ensuring the reliable transmission of the electrical connector signal.

[0036] Pin structure 4: Machined from H62 brass wire shaft, its pin head 4-2 connects to the six spring contacts 3-3 at the rear end of the double-headed spring claw 3, responsible for transmitting electrical signals. Its tail is soldered to the PCB board. In the entire connector system, pin structure 4 serves as the carrier of electrical signal transmission, working in conjunction with other components to ensure that electrical signals can be accurately and stably transmitted between devices.

[0037] The assembly of the socket connector of this utility model is mostly a semi-automated and manual assembly operation.

[0038] The process includes: installing pins, installing double-ended spring claws, installing movable insulators, pad printing markings, assembling accessories, inspection, and warehousing.

[0039] Assembly process:

[0040] Pin assembly process: This process generally begins by confirming the material and appearance of pin structure 4, and then assembling it automatically according to the process requirements of the work instruction. After the inspection is completed, A / B epoxy resin is used to pot and fix it to the socket housing. After the process is completed, the material tray is transferred to the next process.

[0041] Double-headed spring claw assembly process: This process is automated according to the process requirements of the work instructions. After the positional accuracy is qualified, the material pallet is transferred to the next process.

[0042] Installing movable insulators: This process is automated according to the process requirements of the work instructions. Movable insulators are installed inside the socket housing using suction cups. After installation, they are transferred to the CCD inspection station to inspect the assembly dimensions. Qualified products are sent to the qualified material box, and unqualified products are sent to the unqualified material box.

[0043] Pad printing marking process: This process generally uses a pad printing machine to mark the connector shell with trademarks, models, batch numbers, and hole position numbers.

[0044] Assembly of accessories: This process generally uses riveting fixtures to rivet and fix the accessories to the corresponding positions on the connector so that the connector can be locked and fixed during subsequent use.

[0045] Inspection process: This process mainly inspects the appearance, electrical performance, and mechanical performance of the connectors to ensure that the connectors produced are qualified products.

[0046] Warehousing process: Pack qualified connectors according to requirements, affix labels indicating product name, model, quantity, batch number, etc., and complete warehousing procedures.

[0047] Application Example 1: Application in aviation equipment:

[0048] Connection implementation: In the electronic system connection of aviation equipment, the inter-board electrical connector socket is fixed to the PCB board with bolts. The pins at the bottom of the socket are soldered to the PCB circuit using wave soldering. The pin head is connected to the bottom of the double-ended spring claw, and the top of the double-ended spring claw is engaged with the pins on the inter-board electrical connector plug to achieve electrical performance and signal transmission.

[0049] Advantages: This novel double-headed spring claw structure maintains stable contact even under the demands of reduced internal space and weight in aviation equipment operation, while also withstanding high-speed vibration and strong impacts. The connector engages and disengages easily and smoothly, exhibits stable and reliable electrical performance, has an insertion and extraction force lower than the standard requirement of 4N, and boasts a high mechanical lifespan, far exceeding the 500-cycle mechanical life requirement for aviation equipment connectors. In multiple flight tests, the interference fit between the double-headed spring claw and the rigid pin ensured stable electrical signal transmission without any contact defects, fully meeting the stringent reliability requirements of the aviation industry.

[0050] Application Example 2: Application in communication base stations:

[0051] Installation process: In the electronic system connection of the communication base station, the inter-board electrical connector socket is fixed to the PCB board with bolts. The pins at the bottom of the socket are soldered to the PCB circuit using wave soldering. The pin head is connected to the bottom of the double-ended spring claw, and the top of the double-ended spring claw is engaged with the pins on the inter-board electrical connector plug to achieve electrical performance and signal transmission.

[0052] Advantages: In the complex electromagnetic environment and continuous operation of communication base stations, the interference fit between the double-ended spring claw and the rigid pin ensures stable electrical signal transmission. Due to the integrated machining of the double-ended spring claw, no connection failures due to malfunctions have occurred during long-term use, guaranteeing communication continuity. Its excellent product quality and low cost provide an economical and efficient connection solution for large-scale construction of communication base stations, meeting the dual requirements of signal stability and cost control.

[0053] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An inter-board electrical connector with error correction function, comprising a socket housing (1), a movable insulator (2), a double-ended spring claw (3), and a pin structure (4), characterized in that, The socket housing (1) has bolt holes (1-1) on both sides, and bolts (1-2) are installed inside the bolt holes (1-1). Bolt sleeves (1-3) for limiting the bolts (1-2) are also provided inside the bolt holes (1-1). The bolts (1-2) are fixed to both sides of the socket housing (1) by the bolt sleeves (1-3). Anti-misoperation slots (1-4) are provided on both sides of the top of the socket housing (1), and slots (1-5) are provided at the bottom of the four sides of the inner cavity of the socket housing (1). The socket housing (1) is provided with a pin mounting hole (1-6), and a first step (1-7) is provided inside the pin mounting hole (1-6). The movable insulator (2) is located inside the socket housing (1), and a double-headed spring claw mounting hole (2-1) is provided in the movable insulator (2). A second step (2-2) is provided inside the double-headed spring claw mounting hole (2-1). The second step (2-2) is used to lock the mounting platform (3-1) of the double-headed spring claw (3). The insulator (2) is provided with elastic buckles (2-3) on all four sides, and the movable insulator (2) is provided with guide positioning holes (2-4) on both sides. The double-headed spring claw mounting hole (2-1) is provided with a movable double-headed spring claw (3). The double-headed spring claw (3) includes a middle main body (3-4). The middle main body (3-4) is provided with a hanging platform (3-1). The two ends of the middle main body (3-4) are respectively provided with a front end six spring pieces (3-2) and a rear end six spring pieces (3-3). The pin Structure (4) is fixed to the pin mounting holes (1-6) of the socket housing (1) by A / B epoxy resin glue. The pin structure (4) includes an intermediate mounting platform (4-1), a pin head (4-2) and a pin body (4-3). One end of the pin body (4-3) is provided with the pin head (4-2), and the middle part of the pin body (4-3) is provided with the intermediate mounting platform (4-1). The pins of the pin body (4-3) on the pin structure (4) are fixed to the PCB board by bolts (1-2) and soldered.

2. The inter-board electrical connector with error correction function according to claim 1, characterized in that, The movable insulator (2) can move in three directions (X / Y / Z) inside the socket housing (1) through the mating gap. When it is plugged in, the movable insulator (2) is moved to the correct position through the positioning function of the guide positioning hole (2-4).

3. The inter-board electrical connector with error correction function according to claim 1, characterized in that, The front six spring pieces (3-2) and the rear six spring pieces (3-3) are conical after closing. The top hole of the conical shape is chamfered, which has a guiding function, so that when the plug is inserted, the pin structure (4) can be smoothly inserted into the double-headed spring claw (3) to realize the connection of the connector.

4. The inter-board electrical connector with error correction function according to claim 1, characterized in that, The six rear end spring pieces (3-3) on the double-headed spring claw (3) are connected to the pin structure (4) on the socket housing (1) and fixed by the movable insulator (2). The six rear end spring pieces (3-3) on the double-headed spring claw (3) cannot be detached and can only rotate on the pin body (4-3) on the pin structure (4) and move up and down along the insertion direction.

5. The inter-board electrical connector with error correction function according to claim 1, characterized in that, The movable insulator (2) is tightly connected to the slot (1-5) on the socket housing (1) through the elastic function of the elastic buckle (2-3). The outer dimensions of the movable insulator (2) are designed with a gap between the inner cavity of the socket housing (1) and the outer dimensions of the movable insulator (2). The gap connector can realize the movement in the X / Y / Z directions, thereby correcting the position error when the connector is inserted.

6. The inter-board electrical connector with error correction function according to claim 1, characterized in that, After the connector plug guide pin is positioned in the guide positioning hole (2-4) of the movable insulator (2), the connector contacts are then inserted.

7. The inter-board electrical connector with error correction function according to claim 1, characterized in that, The second step (2-2) can prevent the double-headed spring claw (3) from falling off during use, and the double-headed spring claw (3) can move in the X / Y / Z direction in the mounting hole through the mating gap of the double-headed spring claw mounting hole (2-1).

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