A six-core plug

Abstract

The application relates to a six-core plug and relates to the technical field of electric connectors, which comprises a plug outer sleeve, a plug inner sleeve is embedded and mounted in the plug outer sleeve, the plug outer sleeve comprises a plug sleeve and an insulating wire sleeve fixed to the outer wall of the plug sleeve, the plug inner sleeve is electrically connected with wires at the interface end, one end of the wires is electrically connected with a double-clamp female terminal, one end of the insulating wire sleeve is fixedly connected with a nylon sleeve, the other end of the wires is electrically connected with an SM terminal, the insulating wire sleeve is externally provided with a wire clamp, and the plug inner sleeve is fixedly connected with a sealing surface at the connecting position with the plug outer sleeve. The application has the effects of high temperature resistance, deformation resistance, stable electric transmission, firm connection, precise assembly, environmental protection standard compliance, enhanced temperature resistance and mechanical performance of the plug outer sleeve, guaranteed structural stability, avoided deformation and cracking, improved anti-oxidation and anti-corrosion capacity, and strengthened connection strength of the wires and the terminal, and the risk of loosening is eliminated.

Description

Technical Field

[0001] This application relates to the field of electrical connector technology, and in particular to a six-pin plug. Background Technology

[0002] Electrical connectors are electromechanical components used to connect two or more circuit components (such as wires, circuit boards, device interfaces, etc.) to achieve current or signal transmission. They are indispensable key components in electronic equipment and electrical systems. As an essential part of electronic equipment, the performance of electrical connectors directly affects the reliability and safety of the equipment. With the miniaturization and high performance of electronic equipment, higher requirements are placed on the precision, durability, and environmental friendliness of connectors. Currently, common multi-core plugs on the market still have many shortcomings in terms of structural strength, signal transmission stability, and environmental compliance, especially in high-frequency, high-current applications, where they are prone to problems such as poor contact and signal interference. Furthermore, increasingly stringent environmental regulations are gradually restricting the use of hazardous substances (such as lead and cadmium) in traditional connectors, necessitating the development of new connectors that meet environmental requirements.

[0003] The existing plug connection is not strong enough. At the same time, the temperature resistance and mechanical strength of the plug jacket are insufficient, making it easy to deform or crack. The terminal plating is uneven or insufficient in thickness, making it easy to oxidize and rust, which leads to increased contact resistance. The connection strength between the wire and the terminal is insufficient and easy to loosen. The recycling marking of plastic parts is not standardized and does not meet environmental protection regulations. The lack of strict dimensional accuracy control leads to assembly failure or signal interference, thereby affecting the stability of electrical transmission.

[0004] In response to the aforementioned technologies, it is necessary to design a six-pin plug with optimized structure, which is not prone to cracking, has reliable performance, is not affected by model type, and meets environmental protection requirements. Utility Model Content

[0005] The purpose of this application is to provide a six-pin plug that has advantages such as high temperature resistance, deformation resistance, stable electrical transmission, firm connection, precise assembly, and compliance with environmental protection standards, thus solving the deficiencies in structural stability, electrical performance, connection reliability, assembly adaptability, and environmental compliance.

[0006] This application provides a six-pin plug with the following technical solution: A six-pin plug includes a plug outer shell, inside which a plug inner shell is fitted. The plug outer shell includes a plug sleeve and an insulating wire sleeve fixed to the outer wall of the plug sleeve. The interface end of the plug inner shell is electrically connected to a wire. One end of the wire is electrically connected to a double-clamp female terminal. One end of the insulating wire sleeve is fixedly connected to a nylon sleeve. The other end of the wire is electrically connected to an SM terminal. A wire clip is provided on the outside of the insulating wire sleeve. A sealing surface is fixedly connected at the connection position between the plug inner shell and the plug outer shell.

[0007] By adopting the above technical solutions, the plug outer shell uses brown PVC with a temperature resistance of 105℃ and high-precision injection molding process to improve structural stability and avoid high-temperature deformation. The annular sealing surface is encapsulated to enhance the sealing between the plug inner shell and the plug outer shell, preventing impurities from entering. The plug inner shell has multiple socket sizes to adapt to different male terminals. The insulation material meets environmental protection standards, ensuring insulation performance. It also passes tensile testing to reduce contact resistance and prevent loosening of the connection. The detachable clip structure of the wire clip and the matching through hole ensure that the wires are neatly fixed and easy to maintain. The wires are distinguished by wire gauge and color to reduce assembly errors and improve compatibility.

[0008] Preferably, the plug sleeve is wrapped around the outside of the plug inner tube, and the insulating wire sleeve is wrapped around the outside of the wire, and the entire plug outer shell is made of brown PVC material.

[0009] By adopting the above technical solution, it is ensured that the plug outer sleeve and the plug inner sleeve fit tightly, avoiding shaking caused by assembly gaps. The mechanical strength is superior to that of ordinary PE material, and it can withstand the compressive stress of frequent plugging and unplugging. At the same time, brown is the industry's common identification color, which makes it easy to quickly identify the plug type.

[0010] Preferably, the sealing surface is plastic-sealed at the edge of the plug inner liner, and the sealing surface is an annular injection-molded sealing structure.

[0011] By adopting the above technical solution, the sealing surface is integrally injection molded with the plug outer shell, surrounding the edge of the plug inner shell, and forming a high-low annular seal with the stepped structure of the inner shell edge. It is dustproof and waterproof, and can block dust particles and dripping water droplets. At the same time, the injection pressure is used to fill the gap of the plug inner shell edge with PVC melt, and after curing, it forms a tight bond, avoiding gaps between the plug outer shell and the plug inner shell due to vibration, and preventing the internal terminals and wires from being contaminated by impurities.

[0012] Preferably, the plug inner tube has six sets of sockets, namely three sets of small ends, two sets of large ends and one set of flat ends, and the edge of the connection port of the plug inner tube is wrapped with insulating material.

[0013] By adopting the above technical solution, the plug inner tube can connect three different specifications of external male terminals at the same time, meet the differentiated connection needs of multiple lines, maintain the socket spacing, ensure that the pin positions match the standard socket, avoid assembly misalignment, and provide precise positioning and fixed support for six sets of terminals of different models and sizes.

[0014] Preferably, after the double-clamp female terminal is crimped with the wire, a tensile test is performed. The nylon sleeve and the insulating sleeve are both sleeved on the outside of the wire, and the base material of the double-clamp female terminal is a copper alloy.

[0015] By adopting the above technical solution, after crimping, the wire is tested by a tensile testing machine to ensure that it will not loosen when subjected to tensile force within the test pressure, which is much higher than the force experienced in daily use.

[0016] Preferably, the mating length between the SM terminal and the wire and the peripheral male terminal is greater than eight millimeters, and the wire passes through the wire clip. The base material of the SM terminal is metal, and the wire clip is made of rigid PVC material.

[0017] By adopting the above technical solutions, the "snap-on face up" assembly requirement is strictly followed during terminal installation. The mating length with the wire and male terminal must be greater than eight millimeters. It has excellent elasticity and resilience. The contact force remains the same after multiple insertions and removals. The process is consistent among various types of terminals, ensuring corrosion resistance and low contact resistance.

[0018] Preferably, the wire clip has a wire 7 through hole that is adapted to the size of other branch wires, and the wire clip is detachably fixed to the outside of the insulating wire sleeve by a buckle structure.

[0019] By adopting the above technical solution, the perforation and the wire are in a transitional fit, which avoids damage to the insulation layer caused by the wire being too tight, and also prevents shaking caused by being too loose. The locking of the buckle and the slot ensures that the wire clip is securely fixed, and can also be disassembled with tools, making it convenient for wire repair or replacement.

[0020] Preferably, the wires include two wire gauges: 20AWG and 18AWG. The 20AWG wires are available in four colors: brown, blue, yellow, and red, to distinguish the circuit functions, while the 18AWG wires are available in two colors: white and black.

[0021] By adopting the above technical solution, the circuit function can be quickly identified by color during assembly, thereby reducing the wiring error rate.

[0022] In summary, this application includes at least one of the following beneficial technical effects: This six-pin plug features enhanced temperature resistance and mechanical properties of the plug outer shell, ensuring structural stability and preventing deformation and cracking. The annular sealing surface is reinforced with plastic sealing to improve the seal between the plug inner shell and outer shell, preventing impurities from entering. Secondly, the optimized terminal plating process improves oxidation and corrosion resistance, reducing contact resistance to ensure stable electrical transmission. Simultaneously, the connection strength between the wires and terminals is strengthened, eliminating the risk of loosening. The plug inner shell features multiple socket sizes to accommodate different male terminals, enhancing connection reliability. Finally, standardized plastic recycling markings meet environmental regulations, ensuring compliant production. Furthermore, strict dimensional accuracy control is maintained, with terminals installed with the "clamping side facing up," and the mating length with the wires and male terminals must be greater than eight millimeters. This effectively avoids assembly failures and signal interference, ensuring product compatibility and operational stability. Attached Figure Description

[0023] Figure 1 This is an overall diagram of this application; Figure 2 This is a side view of this application; Figure 3 This is a top view of this application; Figure 4 This is a cross-sectional view of the inner tube of the plug in this application; Figure 5 This is a bottom view of this application.

[0024] In the picture: 1. Plug outer sleeve; 101. Plug sleeve; 102. Insulating wire sleeve; 2. Plug inner tube; 3. Double clamp female terminal; 4. Nylon sleeve; 5. SM terminal; 6. Wire clamp; 7. Wire; 8. Sealing surface. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0026] Example 1: A six-pin plug, see reference Figure 1 , Figure 2 and Figure 3 The device includes a plug outer sleeve 1, a plug inner tube 2 which is fitted inside the plug outer sleeve 1, a plug sleeve 101 and an insulating wire sleeve 102 fixed to the outer wall of the plug sleeve 101, an electrical wire 7 connected to the interface end of the plug inner tube 2, a double-clamp female terminal 3 connected to one end of the wire 7, a nylon sleeve 4 fixedly connected to one end of the insulating wire sleeve 102, an SM terminal 5 fixedly connected to one end of the wire 7, a wire clip 6 provided on the outside of the insulating wire sleeve 102, and a sealing surface 8 fixedly connected at the connection position between the plug inner tube 2 and the plug outer sleeve 1.

[0027] By adopting the above technical solutions, the plug outer shell 1 uses brown PVC with a temperature resistance of 105℃ and high-precision injection molding process to improve structural stability and avoid high-temperature deformation. The annular sealing surface 8 enhances the sealing between the plug inner shell 2 and the plug outer shell 1 through plastic sealing to prevent impurities from entering. The plug inner shell 2 has multiple socket sizes to adapt to different male terminals. The insulation material meets environmental protection standards to ensure insulation performance. It also passes the tensile test to reduce contact resistance and prevent loosening of the connection. The wire clip 6 has a detachable buckle structure and an adaptable through hole to ensure that the wires 7 are neatly fixed and easy to maintain. The wires 7 are distinguished by wire gauge and color to reduce assembly errors and improve compatibility.

[0028] Example 2: A six-pin plug, see reference Figure 4 and Figure 5The plug sleeve 101 wraps around the outside of the plug inner tube 2, and the insulating wire sleeve 102 wraps around the outside of the wire 7. The plug outer sleeve 1 is made of brown PVC material to ensure that the size of the plug outer sleeve 1 fits tightly with the plug inner tube 2, avoiding shaking caused by assembly gaps. Its mechanical strength is superior to that of ordinary PE material, and it can withstand the compressive stress of frequent plugging and unplugging. Brown is also a common industry identification color, which facilitates quick identification of the plug type. The sealing surface 8 seals the edge of the plug inner tube 2, and the sealing surface 8 is a ring-shaped injection-molded sealing structure. The sealing surface 8 is integrally injection-molded with the plug outer sleeve 1, surrounding the edge of the plug inner tube 2, and forming a high-low ring seal with the stepped structure of the inner tube edge. It is dustproof and waterproof, and can block dust particles and drips. The falling water droplets, combined with the injection pressure, fill the gaps on the edge of the plug inner tube 2 with PVC melt, forming a tight bond after solidification. This prevents gaps from forming between the plug outer sleeve 1 and the plug inner tube 2 due to vibration, and prevents contamination of the internal terminals and wires 7 by impurities. The plug inner tube 2 has six sets of sockets: three sets of small terminals, two sets of large terminals, and one set of flat terminals. The edges of the connection ports of the plug inner tube 2 are wrapped with insulating material. The plug inner tube 2 can simultaneously connect three different specifications of external male terminals, meeting the needs of multi-line differentiated connections, maintaining the socket spacing, ensuring matching with the pin positions of the standard socket, avoiding assembly misalignment, and providing precise positioning and fixing support for the six sets of terminals of different sizes. After the double-clamp female terminal 3 is crimped with the wire 7, it passes through. After tensile testing, both the nylon sleeve 4 and the insulating sleeve 102 are fitted over the conductor 7. The base material of the double-clamp female terminal 3 is copper alloy. After crimping, it is tested by a tensile testing machine to ensure that it will not loosen when the conductor 7 is subjected to tensile force within the test pressure, which is much higher than the force in daily use. The mating length between the SM terminal 5 and the conductor 7 and the external male terminal is greater than eight millimeters, and the conductor 7 passes through the wire clip 6. The base material of the SM terminal 5 is metal, and the wire clip 6 is made of rigid PVC. When installing the terminals, the assembly requirement of "clamping face up" must be strictly followed. The mating length with the conductor 7 and the male terminal must be greater than eight millimeters. It has excellent elasticity and resilience. After multiple insertions and removals, the contact force remains the same. The process is consistent among all types of terminals to ensure corrosion resistance and low contact resistance. The wire clip 6 has holes for the wires 7 that are compatible with the size of other branch wires 7. The wire clip 6 is detachably fixed to the outside of the insulating sleeve 102 by a snap-fit ​​structure. The holes and wires 7 have a transition fit, which avoids damage to the insulation layer caused by the wires 7 being too tight, and also prevents shaking caused by the wires 7 being too loose. The locking of the snap and the slot ensures that the wire clip 6 is securely fixed, and can be removed with tools for easy maintenance or replacement of the wires 7. The wires 7 include two wire gauges: 20AWG and 18AWG. The 20AWG wires 7 correspond to four colors: brown, blue, yellow, and red to distinguish the circuit function, while the 18AWG wires 7 correspond to two colors: white and black. During assembly, the circuit function can be quickly identified by color, which reduces the wiring error rate. The implementation principle of this application embodiment is as follows: First, the plug outer sleeve 1 and the plug inner tube 2 partially cooperate to form a sealed structure to ensure consistent terminal spacing. After the 187# double-clamp female terminal 3 is crimped with the wire 7, a tensile test is conducted to ensure connection strength. The plug outer sleeve 1 uses brown PVC with a temperature resistance of 105℃ and high-precision injection molding process to improve structural stability and avoid high-temperature deformation. The annular sealing surface 8 enhances the sealing performance between the plug inner tube 2 and the plug outer sleeve 1 through plastic sealing to prevent impurities from entering and ensure sufficient contact area. The wire clip 6 fixes the position of the wire 7 to prevent displacement. The plug inner tube 2 can connect three different specifications of peripheral male terminals at the same time to meet the differentiated connection needs of multiple lines, maintain the socket spacing, ensure matching with the pin position of the standard socket, avoid assembly misalignment, and provide precise positioning and fixed support for six sets of terminals of different models and sizes.

[0029] Secondly, the operating steps and precautions are as follows: S1: The plug outer sleeve 1 is made using a high-precision injection molding process to ensure no injection defects; S2: The plug inner tube 2 is installed in conjunction with the plug outer sleeve 1 to form a sealed structure; S3: The 187# double-clamp female terminal 3 is crimped with the wire 7 and passes the tensile test; S4: The nylon sleeve 4 is fitted over the outside of the wire 7 to achieve insulation; S5: When installing the SM terminal 5, ensure that the "clamping surface is facing upwards" and that the mating length with the wire 7 and the male terminal is greater than eight millimeters; S6: The wire clip 6 fixes the position of the wire 7 and passes the force control test. Finally, the terminals have excellent elasticity and resilience, and the contact force remains unchanged after multiple insertions and removals. The manufacturing process is consistent among various terminals, ensuring corrosion resistance and low contact resistance. The through hole and wire 7 are in a transition fit, which avoids damage to the insulation layer caused by the wire 7 being too tight, and also prevents shaking caused by the wire 7 being too loose. The locking of the buckle and the slot ensures that the wire clip 6 is securely fixed, and can be disassembled with tools, making it easy to repair or replace the wire 7. During assembly, the circuit function can be quickly identified by color, which reduces the wiring error rate.

Claims

1. A six-pin plug, comprising a plug housing (1), characterized in that: The plug sleeve (1) is fitted with a plug inner tube (2). The plug sleeve (1) includes a plug sleeve (101) and an insulating wire sleeve (102) fixed on the outer wall of the plug sleeve (101). The interface end of the plug inner tube (2) is electrically connected to a wire (7). One end of the wire (7) is electrically connected to a double-clamp female terminal (3). One end of the insulating wire sleeve (102) is fixedly connected to a nylon sleeve (4). The other end of the wire (7) is electrically connected to an SM terminal (5). A wire clip (6) is provided on the outside of the insulating wire sleeve (102). A sealing surface (8) is fixedly connected at the connection position between the plug inner tube (2) and the plug sleeve (1).

2. A six-pin plug according to claim 1, characterized in that: The plug sleeve (101) is wrapped around the outside of the plug inner tube (2), and the insulating wire sleeve (102) is wrapped around the outside of the wire (7), and the plug outer sleeve (1) is made of brown PVC material.

3. A six-pin plug according to claim 2, characterized in that: The sealing surface (8) seals the edge of the plug inner tube (2) with plastic, and the sealing surface (8) is an annular injection molding sealing structure.

4. A six-pin plug according to claim 1, characterized in that: The plug inner tube (2) has six sets of sockets, namely three sets of small ends, two sets of large ends and one set of flat ends. The edge of the connection port of the plug inner tube (2) is wrapped with insulating material.

5. A six-pin plug according to claim 1, characterized in that: After the double-clamp female terminal (3) is crimped with the wire (7), a tensile test is performed. The nylon sleeve (4) and the insulating sleeve (102) are both sleeved on the outside of the wire (7). The base material of the double-clamp female terminal (3) is a copper alloy.

6. A six-pin plug according to claim 1, characterized in that: The mating length between the SM terminal (5) and the external male terminal of the wire (7) is greater than eight millimeters, and the wire (7) passes through the wire clip (6). The base material of the SM terminal (5) is metal, and the wire clip (6) is made of rigid PVC material.

7. A six-pin plug according to claim 6, characterized in that: The wire clip (6) has wire through holes that are adapted to the size of other branch wires (7), and the wire clip (6) is detachably fixed to the outside of the insulating sleeve (102) by a snap-fit ​​structure.

8. A six-pin plug according to claim 1, characterized in that: The wire (7) includes two wire gauges: 20AWG and 18AWG. The 20AWG wire (7) corresponds to four colors: brown, blue, yellow, and red to distinguish the circuit function, while the 18AWG wire (7) corresponds to two colors: white and black.

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