Connector terminal fixing structure

Abstract

The utility model relates to electric connection technical field, especially a kind of connector terminal fixed structure, including alloy shell, first insulator, second insulator, plug-in terminal, wiring terminal and connecting wire, alloy shell is provided with first fixed cavity and second fixed cavity, first fixed cavity and second fixed cavity are vertically communicated, one end of first fixed cavity is provided with plug-in cavity, first insulator is set in first fixed cavity, and one end extends to plug-in cavity, the other end extends to second fixed cavity, second insulator is set in second fixed cavity, second insulator is provided with electricity connection cavity, wiring terminal is set in electricity connection cavity, plug-in terminal is set in first insulator, and one end extends to electricity connection cavity and is connected with wiring terminal, one end of connecting wire is connected with wiring terminal. The utility model whole structure has high environmental adaptability, can satisfy the strict requirement of high performance, high reliability and long life of automobile electronic field to connector.

Description

Technical Field

[0001] This utility model relates to the field of electrical connection technology, and in particular to a connector terminal fixing structure. Background Technology

[0002] With the rapid development of automotive electronics technology, especially the widespread adoption of intelligent driving, vehicle networking, and in-vehicle infotainment systems, automotive connectors, as key components for signal and power transmission, face increasingly stringent performance requirements. Traditional automotive connectors, particularly those used for radio frequency signal transmission, often employ direct crimping of coaxial cables or simple single-cavity insulation structures. These structures generally suffer from low space utilization, large overall size, and complex assembly processes, making them ill-suited to the high-density integration and miniaturization trends of modern automotive electronic devices. In the frequently vibrating and impact-prone automotive environment, the terminal fixation reliability of traditional structures is insufficient, easily leading to poor contact and increased resistance due to long-term micro-movements, affecting signal transmission stability and connection lifespan. Furthermore, the assembly process often relies on manual operation and complex alignment, resulting in low production efficiency, difficulty in ensuring consistency, and increased manufacturing costs. In addition, with the continuous increase in data transmission rates and current loads, higher requirements are placed on the electrical performance, electromagnetic shielding, and mechanical strength of connectors.

[0003] Therefore, the industry urgently needs an innovative connector structure design that can achieve more efficient terminal layout and fixation within a limited space, improve the level of assembly automation, and ensure excellent electrical continuity, mechanical stability and anti-interference capabilities under harsh operating conditions, so as to meet the urgent needs of the next generation of intelligent connected vehicles for high-performance and high-reliability connection solutions. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a connector terminal fixing structure with high environmental adaptability, capable of meeting the stringent requirements of the automotive electronics field for high performance, high reliability, and long lifespan of connectors.

[0005] The technical solution adopted by this utility model is: a connector terminal fixing structure, including an alloy shell, a first insulator, a second insulator, a plug-in terminal, a wiring terminal, and a connecting wire. The alloy shell is provided with a first fixing cavity and a second fixing cavity, which are perpendicularly connected. One end of the first fixing cavity is provided with a plug-in cavity. The first insulator is provided in the first fixing cavity, with one end extending into the plug-in cavity and the other end extending into the second fixing cavity. The second insulator is provided in the second fixing cavity and has a power receiving cavity. The wiring terminal is provided in the power receiving cavity. The plug-in terminal is provided in the first insulator, with one end extending into the power receiving cavity and connected to the wiring terminal. The connecting wire is connected to one end of the wiring terminal.

[0006] A further improvement to the above scheme is that the alloy shell is provided with a plug-in sleeve and a wiring part, the plug-in sleeve and the wiring part are vertically connected, the plug-in cavity and the first fixing cavity are sequentially arranged in the plug-in sleeve, and the second fixing cavity is arranged in the wiring part; the connecting wire is arranged in the wiring part and connected to the wiring terminal; the wiring terminal is inserted from the bottom of the wiring part into the second fixing cavity of the second insulator.

[0007] A further improvement to the above solution is that the insertion sleeve is provided with a sealing mounting groove outside the insertion cavity, a first sealing ring is installed on the sealing mounting groove, and multiple sealing lips are provided on the outer periphery of the first sealing ring.

[0008] A further improvement to the above scheme is that an electrical connection sleeve is provided on the insertion cavity, and an electrical connection end and an electrical connection plug end are respectively provided at both ends of the electrical connection sleeve. The electrical connection end is provided on the first insulator, and the electrical connection plug end extends to the port of the first fixed cavity.

[0009] A further improvement to the above scheme is that the power connection end is provided with a limiting inner ring, and the first insulator is provided with a backstop step. The limiting inner ring is used to abut against the backstop step to prevent the power connection sleeve from retracting.

[0010] A further improvement to the above solution is that the inner circumference of the electrical connection end is provided with an electrical contact spring, which is used to make contact with the connector to conduct electricity and generate friction.

[0011] A further improvement to the above scheme is that the alloy shell is provided with an assembly groove at the top of the second fixing cavity, one end of the second fixing cavity is connected to the assembly groove, and the second insulator is inserted into the second fixing cavity from the assembly groove.

[0012] A further improvement to the above solution is that a sealing groove is provided on the outer periphery of the second fixing cavity for the assembly groove, a second sealing ring is installed in the sealing groove, and a sealing cover plate is installed on the assembly groove. The sealing cover plate is used to cooperate with the second sealing ring to seal the assembly groove.

[0013] A further improvement to the above scheme is that the second insulator has an assembly plane on the side facing the first fixing cavity, the assembly plane has an assembly slot, one end of the first insulator is inserted into the assembly slot and extends to the electrical connection cavity.

[0014] A further improvement to the above scheme is that the two ends of the plug-in terminal are respectively provided with a mating part and a power receiving part, the mating part extends into the plug-in cavity, and the power receiving part extends into the power receiving cavity and is connected to the wiring terminal.

[0015] A further improvement to the above scheme is that the mating part is provided with a mating hole and a groove, the groove being used to cut the mating hole into two halves to generate tension during mating; the electrical connection part is provided with electrical connection clips, two of which are arranged opposite each other, forming a mating groove between the two electrical connection clips; the terminal is provided with an insertion end, the insertion end being inserted into the mating groove.

[0016] The beneficial effects of this utility model are: Compared to existing connector terminal fixing structures, this invention utilizes a first and second fixing cavity that are perpendicularly connected within the alloy housing. This achieves a three-dimensional, modular, and partitioned layout of the plug-in terminals, wiring terminals, and connecting wires, optimizing internal space utilization efficiency and reducing the overall size and weight of the connector. This perfectly meets the stringent requirements of modern automotive electronic systems for high-density integration and miniaturization. A first insulator penetrates the first fixing cavity and extends to the plug-in cavity and the second fixing cavity. A second insulator is precisely installed in the second fixing cavity and pre-set with a grounding cavity. This layered guiding structure greatly simplifies the assembly process, improves assembly accuracy and production efficiency, while ensuring the positional stability and mechanical reliability of each component under vibration. The plug-in terminals are fixed to the first insulator and extend to the grounding cavity, achieving a stable connection with the wiring terminals. The wiring terminals are located in the grounding cavity and reliably connected to external connecting wires. This effectively shortens the current transmission path, reduces contact resistance and signal attenuation, and ensures high-current carrying capacity and high-fidelity, low-loss transmission of high-frequency signals. It is particularly suitable for RF signal connection scenarios such as automotive FAKRA. The alloy housing itself provides excellent mechanical strength, vibration resistance, shock resistance, and electromagnetic shielding, effectively resisting external mechanical stress and electromagnetic interference. The insulating assembly provides reliable insulation protection and support for internal conductive components, preventing short-circuit risks and ensuring safe operation. The overall structure has high environmental adaptability, meeting the stringent requirements of the automotive electronics industry for high performance, high reliability, and long lifespan of connectors. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the connector terminal fixing structure of this utility model; Figure 2 for Figure 1 Exploded view of the connector terminal fixing structure; Figure 3 for Figure 1 An exploded view of the connector terminal fixing structure from another perspective; Figure 4 for Figure 1 Front view schematic diagram of the connector terminal fixing structure; Figure 5 for Figure 4 Sectional view of AA; Figure 6 This is a schematic diagram showing the connection between the plug-in terminal and the wiring terminal in this utility model.

[0018] Explanation of reference numerals in the attached drawings: Alloy housing 1, First fixing cavity 11, Second fixing cavity 12, Insertion cavity 13, Insertion sleeve 14, First sealing ring 141, Sealing outer lip 142, Wiring part 15, Electrical sleeve 16, Electrical connection end 161, Electrical plug-in end 162, Limiting inner ring 163, Electrical contact spring 164, Assembly groove 17, Sealing groove 171, Second sealing ring 172, Sealing cover plate 173, First insulator 2, Anti-retraction step 21, Second insulator 3, Electrical cavity 31, Assembly plane 32, Assembly slot 33, Insertion terminal 4, Plug-in part 41, Plug-in hole 411, Groove 412, Electrical part 42, Electrical clamp 421, Wiring terminal 5, Insertion end 51, Connecting wire 6. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0020] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-6As shown, in one embodiment of this utility model, a connector terminal fixing structure is provided, including an alloy housing 1, a first insulator 2, a second insulator 3, a plug-in terminal 4, a wiring terminal 5, and a connecting wire 6. The alloy housing 1 is provided with a first fixing cavity 11 and a second fixing cavity 12, which are perpendicularly connected. One end of the first fixing cavity 11 is provided with a plug-in cavity 13. The first insulator 2 is provided in the first fixing cavity 11, with one end extending to the plug-in cavity 13 and the other end extending to the second fixing cavity 12. The second insulator 3 is provided in the second fixing cavity 12 and has a power receiving cavity 31. The wiring terminal 5 is provided in the power receiving cavity 31. The plug-in terminal 4 is provided in the first insulator 2, with one end extending to the power receiving cavity 31 and connected to the wiring terminal 5. The connecting wire 6 is connected to one end of the wiring terminal 5. This invention utilizes a first fixed cavity 11 and a second fixed cavity 12 that are perpendicularly connected within the alloy housing 1 to achieve a three-dimensional, modular, and partitioned layout of the plug-in terminal 4, wiring terminal 5, and connecting wire 6. This optimizes internal space utilization efficiency, reduces the overall size and weight of the connector, and perfectly meets the stringent requirements of modern automotive electronic systems for high-density integration and miniaturization. The first insulator 2 penetrates the first fixed cavity 11 and extends to the plug-in cavity 13 and the second fixed cavity 12. The second insulator 3 is precisely installed in the second fixed cavity 12 and pre-set with a power-connecting cavity 31. This layered guiding structure greatly simplifies the assembly process, improves assembly accuracy and production efficiency, and ensures the positional stability and mechanical reliability of each component under vibration. The plug-in terminal 4 is fixed to the first insulator 2 and extends to the power-connecting cavity 31 to achieve a stable connection with the wiring terminal 5. The wiring terminal 5 is located in the power-connecting cavity 31 and reliably connected to the external connecting wire 6. This effectively shortens the current transmission path, reduces contact resistance and signal attenuation, and ensures high current carrying capacity and high-fidelity, low-loss transmission of high-frequency signals. It is particularly suitable for RF signal connection scenarios such as automotive FAKRA. The alloy housing 1 itself provides excellent mechanical strength, vibration resistance, shock resistance, and electromagnetic shielding, effectively resisting external mechanical stress and electromagnetic interference. The insulating assembly provides reliable insulation protection and support for the internal conductive components, preventing short-circuit risks and ensuring safe operation. The overall structure has high environmental adaptability and can meet the stringent requirements of the automotive electronics field for high performance, high reliability, and long lifespan of connectors.

[0022] The alloy housing 1 is provided with a plug-in sleeve 14 and a wiring portion 15. The plug-in sleeve 14 and the wiring portion 15 are vertically connected. The plug-in cavity 13 and the first fixing cavity 11 are sequentially arranged in the plug-in sleeve 14, and the second fixing cavity 12 is arranged in the wiring portion 15. The connecting wire 6 is arranged in the wiring portion 15 and connected to the terminal block 5. The terminal block 5 is inserted from the bottom of the wiring portion 15 into the second fixing cavity 12 of the second insulator 3. In this embodiment, by designing the alloy housing 1 to include a vertically connected plug-in sleeve 14 and a wiring portion 15, and setting the first fixing cavity 11 and the second fixing cavity 12 that are interconnected in both, a clear and reasonable functional partition and spatial layout are formed. This makes the insertion direction of the plug-in terminal 4 and the exit direction of the connecting wire 6 perpendicularly distributed, which greatly optimizes the adaptability and installation convenience of the connector in a small space, effectively avoids excessive bending of the cable, and reduces installation stress. At the same time, the wiring terminal 5 is inserted from the bottom of the wiring portion 15 upwards, which simplifies the wire connection operation and improves assembly efficiency and maintainability. It enhances the overall mechanical strength and electromagnetic interference resistance, and provides a solid structural foundation for the orderly installation, reliable fixation and multi-level sealing of internal components, significantly improving the structural stability and durability of the connector in complex vehicle environments.

[0023] The insertion sleeve 14 is provided with a sealing mounting groove on the outside of the insertion cavity 13. A first sealing ring 141 is installed on the sealing mounting groove, and multiple sealing lips 142 are provided on the outer periphery of the first sealing ring 141. In this embodiment, the design of multiple sealing lips 142 significantly increases the sealing contact area and forms multiple elastic contact barriers with the mating connector housing during the insertion process, effectively improving the tolerance and fault tolerance of the sealing interface, and reliably preventing external moisture, dust and other contaminants from entering the insertion cavity 13. This structure has good adaptability to housing machining tolerances and installation alignment deviations. Even under the condition of structural micro-movement caused by vibration or temperature changes, it can still maintain a stable and lasting sealing pressure, ensuring that the connector maintains a high level of sealing protection for a long time in harsh environments such as humid and dusty environments.

[0024] A power-connecting sleeve 16 is provided on the insertion cavity 13. The two ends of the power-connecting sleeve 16 are respectively provided with a power-connecting connection end 161 and a power-connecting mating end 162. The power-connecting connection end 161 is located on the first insulator 2, and the power-connecting mating end 162 extends to the port of the first fixed cavity 11. In this embodiment, it is ensured that the insertion terminal 4 can be smoothly inserted into the power-connecting sleeve 16 along a predetermined axis during insertion, effectively avoiding poor contact and mechanical damage caused by misalignment or displacement. The power-connecting connection end 161 is fixed to the first insulator 2, enhancing the structural stability of the power-connecting sleeve 16, preventing displacement or deformation during insertion and removal, and ensuring the long-term alignment of the contact interface. Simultaneously, the power-connecting mating end 162 extends to the port to form a guiding structure, reducing the difficulty of insertion operations and improving assembly efficiency and connection reliability. This design optimizes the current transmission path, reduces contact resistance, and improves the overall mechanical durability and electrical performance consistency of the connector through precise positioning and support of key conductive components.

[0025] The electrical connection end 161 is provided with a limiting inner ring 163, and the first insulator 2 is provided with a backstop step 21. The limiting inner ring 163 is used to abut against the backstop step 21 to prevent the electrical sleeve 16 from retracting. Specifically, the inner circumference of the electrical connection mating end 162 is provided with an electrical contact spring 164, which is used to make contact with the connector for conduction and to generate friction. In this embodiment, the axial movement or detachment of the electrical sleeve 16 is effectively prevented during insertion, removal or vibration, ensuring the stability and consistency of the electrical connection interface and avoiding increased contact resistance or instantaneous power failure caused by component displacement. The electrical contact spring 164 protruding from the inner circumference of the electrical connection mating end 162 forms elastic contact with the mating terminal during insertion, which not only provides self-locking force through friction, enhancing the firmness of the mechanical connection, but also increases the effective contact area, reduces contact resistance, and improves current conduction efficiency and resistance to fretting wear. The elastic deformation design of the spring can compensate for tolerance fluctuations and thermal expansion and contraction, maintaining a long-lasting and stable contact pressure, thereby comprehensively improving the electrical reliability and mechanical life of the connector under harsh conditions such as vibration and high temperature.

[0026] An assembly groove 17 is provided at the top of the alloy housing 1, located at the second fixing cavity 12. One end of the second fixing cavity 12 is connected to the assembly groove 17, and the second insulator 3 is inserted into the second fixing cavity 12 from the assembly groove 17. In this embodiment, a clear assembly path and guiding reference are provided, reducing the risk of insulator misalignment, jamming, or displacement during installation and improving production assembly efficiency and consistency. The assembly groove 17 serves as an axial guide structure, ensuring that the second insulator 3 can be smoothly inserted into the second fixing cavity 12 along a preset direction, avoiding component damage or sealing structure destruction caused by forced assembly. It enhances the positioning stability of the second insulator 3 within the cavity, preventing axial displacement or rotation under vibration or impact environments, and ensuring the geometric accuracy and electrical reliability of the internal terminal connections. By optimizing the assembly process, the manufacturing cost and failure rate of complex connectors are significantly reduced, making it particularly suitable for industrial or automotive electrical systems with high density and high reliability requirements.

[0027] A sealing groove 171 is provided on the outer periphery of the second fixed cavity 12, and a second sealing ring 172 is installed in the sealing groove 171. A sealing cover plate 173 is installed in the assembly groove 17, and the sealing cover plate 173 is used to seal the assembly groove 17 in conjunction with the second sealing ring 172. In this embodiment, the second sealing ring 172 is compressed and deformed in the sealing groove 171 to form a continuous and stable annular sealing interface, which effectively prevents external contaminants such as moisture, dust, and oil from entering the interior of the second fixed cavity 12, thereby improving the protection level of the connector in harsh environments such as humid, dusty, or oily conditions. The synergistic effect of the sealing cover plate 173 and the second sealing ring 172 not only enhances the reliability of the axial seal, but also prevents the sealing ring from creeping or shifting during long-term use through structural constraints, maintaining the durability of the seal. No additional complex processes are required during assembly; the sealing cover plate 173 can be press-fitted to achieve a uniform sealing pressure distribution, which improves production efficiency and avoids damage to the sealing ring caused by excessive compression.

[0028] The second insulator 3 has an assembly plane 32 on the side facing the first fixed cavity 11. The assembly plane 32 has an assembly slot 33. One end of the first insulator 2 is inserted into the assembly slot 33 and extends to the contact cavity 31. In this embodiment, a clear axial assembly reference and radial limit are provided to ensure that the first insulator 2 and the second insulator 3 maintain coaxiality and relative positional accuracy during the docking process, avoiding terminal misalignment or poor contact caused by misalignment. The guiding effect of the assembly slot 33 significantly simplifies the assembly process, improves production efficiency and consistency, and reduces manual assembly errors. The design extending to the contact cavity 31 ensures stable overhang positioning of the terminals of the first insulator 2, creating ideal conditions for reliable mating with the contact sleeve 16. The planar mating structure enhances the mechanical stability of the overall insulation assembly, effectively disperses vibration and impact stress, and prevents fretting wear or loosening between insulators, thereby improving the electrical continuity and long-term reliability of the connector in high-temperature and high-vibration environments. This design is particularly suitable for high-density multi-core connectors, achieving the integration and reliable isolation of complex functions within a limited space.

[0029] The two ends of the plug-in terminal 4 are respectively provided with a mating portion 41 and a connecting portion 42. The mating portion 41 extends into the plug-in cavity 13, and the connecting portion 42 extends into the connecting cavity 31 and connects to the terminal 5. Specifically, the mating portion 41 is provided with a mating hole 411 and a groove 412, which is used to cut the mating hole 411 into two halves to generate tension during mating. The connecting portion 42 is provided with two connecting clips 421, which are arranged opposite each other and form a plug-in groove between the two connecting clips 421. The terminal 5 is provided with an insertion end 51, which is inserted into the plug-in groove. In this embodiment, the mating hole 411 is divided into two halves by setting the groove 412 to form an elastic tension structure. During mating, this design utilizes the elasticity of the material to generate radial tension force, ensuring continuous and stable contact pressure with the mating terminal, effectively reducing contact resistance and improving conductivity reliability. The elastic deformation structure can compensate for mating tolerances, withstand vibration and insertion / removal wear, and extend the mechanical life of the connector. The dual-clamp type electrical clamp 421 design forms symmetrical insertion slots, creating surface contact rather than point contact with the insertion end 51 of the terminal 5. The guiding design of the insertion slots simplifies the wiring assembly process, enabling rapid crimping without additional tools, balancing production efficiency and connection reliability. The mating part 41 and the electrical connection part 42 have clearly defined functions, optimizing the mechanical and electrical characteristics of the mating connection and the wire connection respectively. This allows a single terminal to simultaneously meet the requirements of high-frequency insertion / removal and high-load power delivery, making it particularly suitable for fields with stringent connector performance requirements, such as new energy vehicles and industrial equipment.

[0030] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A connector terminal fixing structure, characterized in that: The device includes an alloy housing, a first insulator, a second insulator, a plug-in terminal, a wiring terminal, and a connecting wire. The alloy housing has a first fixed cavity and a second fixed cavity, which are perpendicularly connected. One end of the first fixed cavity has a plug-in cavity. The first insulator is disposed in the first fixed cavity, with one end extending into the plug-in cavity and the other end extending into the second fixed cavity. The second insulator is disposed in the second fixed cavity and has a power-connecting cavity. The wiring terminal is disposed in the power-connecting cavity. The plug-in terminal is disposed in the first insulator, with one end extending into the power-connecting cavity and connected to the wiring terminal. The connecting wire is connected to one end of the wiring terminal.

2. The connector terminal fixing structure according to claim 1, characterized in that: The alloy housing is provided with a plug-in sleeve and a wiring part. The plug-in sleeve and the wiring part are vertically connected. The plug-in cavity and the first fixed cavity are sequentially arranged in the plug-in sleeve, and the second fixed cavity is arranged in the wiring part. The connecting wire is arranged in the wiring part and connected to the wiring terminal. The wiring terminal is inserted into the second fixed cavity of the second insulator from the bottom of the wiring part. The insertion sleeve is provided with a sealing mounting groove outside the insertion cavity, and a first sealing ring is installed on the sealing mounting groove. Multiple sealing lips are provided on the outer periphery of the first sealing ring.

3. The connector terminal fixing structure according to claim 1, characterized in that: The insertion cavity is provided with an electrical connection sleeve, and the two ends of the electrical connection sleeve are respectively provided with an electrical connection end and an electrical connection plug end. The electrical connection end is provided on the first insulator, and the electrical connection plug end extends to the port of the first fixed cavity.

4. The connector terminal fixing structure according to claim 3, characterized in that: The power connection end is provided with a limiting inner ring, and the first insulator is provided with a backstop step. The limiting inner ring is used to abut against the backstop step and to prevent the power connection sleeve from retracting. The inner circumference of the electrical connection end is provided with an electrical contact spring, which is used to make contact with the connector to conduct electricity and generate friction.

5. The connector terminal fixing structure according to claim 1, characterized in that: The alloy shell is provided with an assembly groove at the top of the second fixing cavity. One end of the second fixing cavity is connected to the assembly groove, and the second insulator is inserted into the second fixing cavity from the assembly groove.

6. The connector terminal fixing structure according to claim 5, characterized in that: The assembly groove is provided with a sealing groove on the outer periphery of the second fixing cavity. A second sealing ring is installed in the sealing groove. A sealing cover plate is installed in the assembly groove. The sealing cover plate is used to cooperate with the second sealing ring to seal the assembly groove.

7. The connector terminal fixing structure according to claim 1, characterized in that: The second insulator has an assembly plane on the side facing the first fixing cavity, and the assembly plane has an assembly slot. One end of the first insulator is inserted into the assembly slot and extends to the electrical connection cavity.

8. The connector terminal fixing structure according to claim 1, characterized in that: The two ends of the plug terminal are respectively provided with a mating part and a power receiving part. The mating part extends into the plug cavity, and the power receiving part extends into the power receiving cavity and is connected to the wiring terminal.

9. The connector terminal fixing structure according to claim 8, characterized in that: The mating part is provided with a mating hole and a groove. The groove is used to cut the mating hole into two halves so as to generate tension force during mating.

10. The connector terminal fixing structure according to claim 9, characterized in that: The power receiving part is provided with power receiving clips, and two power receiving clips are arranged opposite each other, forming a plug groove between the two power receiving clips. The terminal is provided with an insertion end, which is inserted into the plug groove.

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