Wire terminal for acceleration sensor and wire connector

Abstract

The application provides a wiring terminal and a wiring device for an acceleration sensor, wherein the wiring terminal comprises a terminal body connected with a joint of the acceleration sensor and a cable respectively; a connecting shell is sleeved outside the terminal body and used for fixing the joint of the acceleration sensor and the terminal body; and a sealing ring is sleeved on the terminal body and located at one end of the terminal body facing the joint. The technical scheme of the application can effectively solve the problem that the sealing performance of the wiring terminal of the acceleration sensor is poor in the cold and hot cycle test process in the prior art, which easily leads to short circuit at the wiring position.

Description

Technical Field

[0001] This application relates to the field of sensor technology, and more specifically to a terminal block for an acceleration sensor and a connector for an acceleration sensor. Background Technology

[0002] Accelerometers play a vital role in modern industry and scientific research, measuring the acceleration of objects to analyze their motion. However, during thermal cycling tests, moisture can easily enter the electrical connections of accelerometer terminals through gaps, causing short circuits and severely impacting sensor performance and lifespan. Therefore, ensuring the sealing of the terminals is a critical issue that urgently needs to be addressed. Utility Model Content

[0003] One aspect of this application provides a terminal block for an accelerometer, including a terminal body that is connected to a connector of the accelerometer and a cable respectively; a connecting shell that is fitted over the terminal body for fixing the accelerometer connector and the terminal body; and a sealing ring that is fitted over the terminal body and located at the end of the terminal body facing the connector, the sealing ring being disposed near the electrical connection between the terminal body and the connector.

[0004] In one embodiment of this application, the terminal body includes a middle cylinder, which is hollow and has a limiting section facing the connector. A sealing ring is sleeved on the limiting section. A connecting shell is sleeved outside the middle cylinder and connected to the middle cylinder along its axial direction. A pin is fixed inside the middle cylinder and coaxially arranged with it. The pin is used to insert into the connector and is electrically connected to the connector. A cable is fixed inside the middle cylinder and electrically connected to the pin.

[0005] In this configuration, the middle tube is further subdivided into a cylinder body, a connecting shell is fitted onto the cylinder body, a pin is coaxially positioned inside the cylinder body, and a sealing ring is fitted onto the cylinder body; the tail tube is operably inserted into the cylinder body and coaxially positioned with the cylinder body, and the cable is located inside the tail tube and electrically connected to the pin.

[0006] To elaborate further, along the axial direction of the cylinder, the cylinder is specifically divided into a head section, a middle section, and a tail section. The head section is also the limiting section, and the outer diameter of the middle section is larger than that of the head and tail sections. Meanwhile, the connecting shell consists of a threaded cylinder and a limiting cylinder, which are coaxially and fixedly connected. The threaded cylinder has threads inside, used to slide along the cylinder axis towards the joint and connect threadedly with the joint. After the connecting shell slides to its limit position towards the joint, the limiting cylinder contacts the stepped surface between the middle and tail sections of the cylinder.

[0007] The outer diameter of the sealing ring is designed to match the outer diameter of the middle section of the cylinder to ensure good sealing performance.

[0008] In one embodiment of this application, the tailpipe and the cylinder are connected by threads, which facilitates installation and disassembly.

[0009] The inner cylinder is filled with insulating filler, which is located between the pin and the inner annular surface of the inner cylinder. The preferred material is fluoroplastic to enhance electrical performance and environmental resistance.

[0010] Another aspect of this application provides a connector for an acceleration sensor, the connector comprising the aforementioned acceleration sensor terminals and connectors, the connectors being electrically connected to the acceleration sensor, and the terminals being electrically connected to the connectors.

[0011] The connector is specifically composed of a metal connector, with its two ends along its length defined as the first end and the second end, respectively. The first end is used for electrical connection with the acceleration sensor. The outer casing is fitted over the metal connector. The pins of the terminal body are inserted into the second end of the metal connector, while the sealing ring directly abuts against the end face of the second end.

[0012] The connecting shell can move along the axis of the terminal body, is sleeved on the outer shell, and is connected to the outer shell by threads, which facilitates adjustment and fastening.

[0013] This application relates to a wiring terminal for an accelerometer. By configuring a terminal body, a connecting shell, and a sealing ring, a stable connection is achieved between the connector, cable, and terminal body. In particular, the sealing ring is located at the end of the terminal body facing the connector, precisely at the junction of the wiring terminal and the connector's wiring terminal. This forms a sealing barrier at this critical location, effectively preventing moisture, dust, and other impurities from entering the circuit through the gap between the wiring terminal and the connector's electrical connection, thus avoiding short circuits within the wiring terminal. Simultaneously, the sealing effect of the sealing ring ensures the reliability of the electrical connection, significantly improving the stability and service life of the accelerometer under complex operating conditions such as thermal cycling, humidity, and vibration.

[0014] This application's embodiment improves the structure of the terminal block, particularly by incorporating a sealing ring at the junction of the terminal body and the connector. This sealing ring directly seals the pin and connector socket, which is the second-end insertion slot of the metal connector, thus cutting off the path for external moisture to enter. Compared to traditional methods that only seal the outer shell or connector periphery, this solution's sealing ring arrangement is more rational, significantly enhancing the sealing effect. Specifically, the sealing ring is located close to the pin and connector socket, forming the most direct sealing surface. This prevents moisture, liquid, or gas from entering between the pin and socket through the junction, avoiding short circuits at the pin. By preventing the intrusion of moisture and impurities, it avoids impedance degradation or short circuits, ensuring accurate transmission of acceleration signals. The connecting shell provides a fixed fit between the terminal body and the connector, making the overall mechanical connection more reliable and further improving vibration resistance. Furthermore, this invention has a simple structure, is easy to manufacture, and has low cost, making it suitable for mass production and application. Attached Figure Description

[0015] Explanation of reference numerals in the attached figures:

[0016] 1. Terminal block; 11. Metal connector; 111. First end; 112. Second end; 113. Limiting ring; 114. Insertion groove; 12. Sealing ring; 13. Housing; 131. Threaded section; 132. Third end face; 133. Positioning ring; 134. Welding surface; 14. Filler; 15. Adhesive layer; 2. Terminal body; 21. Middle cylinder; 211. Cylinder; 2111. Limiting section; 2112. Middle section; 2113. Tail section; 212. Tail tube; 22. Pin; 23. Insulating filler; 3. Connecting shell; 31. Threaded cylinder; 32. Limiting cylinder; 4. Sealing ring; 5. Cable;

[0017] Figure 1 This is a schematic diagram of the connector structure in an embodiment of this application;

[0018] Figure 2 yes Figure 1 Sectional view at point AA;

[0019] Figure 3 This is an exploded view of the connector in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the structure of the metal connector in the embodiments of this application;

[0021] Figure 5 This is an exploded view of the connector and wiring terminals in the embodiments of this application;

[0022] Figure 6 This is a left view of the wiring terminals in an embodiment of this application;

[0023] Figure 7 yes Figure 6 Sectional view at point BB;

[0024] Figure 8 This is an exploded view of the wiring terminals in the embodiments of this application. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0026] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0027] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are merely illustrative of the essential spirit of the technical solution of this utility model.

[0028] 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 "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 manner in one or more embodiments.

[0029] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0030] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0031] The embodiments of this utility model are described below with reference to the accompanying drawings.

[0032] Figure 1 This is a schematic diagram of the overall structure of the wiring terminal; Figure 2 yes Figure 1 Sectional view at point AA; Figure 3 This is an exploded view of the wiring terminals in the embodiments of this application.

[0033] One aspect of this application provides a connector for an acceleration sensor, such as... Figures 1 to 3 As shown, the connector 1 includes: a metal connector 11, a sealing ring 12, a housing 13, a filler 14, and an adhesive layer 15.

[0034] The metal connector 11 has a first end 111 and a second end 112 at its two ends along its length. The first end 111 is used for electrical connection with the accelerometer, and the second end 112 can be electrically connected to an external device. A sealing ring 12 is fitted over the metal connector 11, and a housing 13 is fitted over the metal connector 11 and presses against the sealing ring 12. A filler 14 is filled between the housing 13 and the metal connector 11, and the filler 14 is located on the side of the sealing ring 12 facing the second end 112. An adhesive layer 15 is filled between the housing 13 and the metal connector 11, and the adhesive layer 15 is located on the side of the sealing ring 12 facing the first end 111.

[0035] In this embodiment, the direct electrical connection between the metal connector 11 and the accelerometer sensor ensures the stability and reliability of signal transmission. The sealing ring 12, in conjunction with the tight fit of the housing 13, forms the first sealing barrier, effectively isolating the sensor from external environmental influences. The adhesive layer 15 and the filler 14 are located at both ends of the sealing ring 12, forming a front and rear support structure. This not only enhances the positioning of the sealing ring 12 but also improves the overall structural stability and sealing performance through the combined effects of the adhesive and filler materials. The technology in this embodiment effectively avoids moisture infiltration or structural loosening during thermal cycling or repeated insertion and removal, significantly improving the durability of the connector 1 and the reliability of signal transmission. In other embodiments, sealing rings 12 and fillers 14 made of different materials can be used to adapt to different environmental conditions and solve sealing and connection problems in specific environments.

[0036] Furthermore, such as Figure 2As shown, a limiting ring 113 is located on the outer surface of the metal connector 11. Along the length of the metal connector 11, the limiting ring 113 abuts against the sealing ring 12, and is located on the side of the sealing ring 12 opposite to the second end 112. The limiting ring 113 further strengthens the axial positioning of the sealing ring 12, preventing it from slipping under pressure changes or temperature fluctuations, thereby ensuring the stability and sealing effect of the sealing ring 12. Through physical contact with the sealing ring 12, the limiting ring 113 restricts the range of movement of the sealing ring 12, enhancing the structural stability of the connector 1 in complex environments. The technical solution of this embodiment not only improves the positioning stability of the sealing ring 12 but also further enhances the sealing performance and long-term reliability of the connector 1. In other embodiments, the position and size of the limiting ring 113 can be adjusted to accommodate sealing rings 12 of different specifications, solving the positioning problem of the sealing ring 12 in different application scenarios.

[0037] Furthermore, the outer shell 13 is a metal shell, while the filler 14 is an insulating material. The use of the metal shell 13 improves the mechanical strength and electromagnetic interference resistance of the connector 1, while the filling with insulating material ensures the safety and stability of the electrical connection. Metal materials have good thermal conductivity and mechanical strength, which helps dissipate heat and enhance structural stability; the insulating material provides electrical isolation, preventing signal short circuits or leakage. The technical solution in this embodiment effectively improves the applicability of the connector 1 in high-precision or high-environmental-requirement applications, enhancing electrical safety and signal transmission reliability. In other embodiments, different types of metal materials and insulating materials can be selected to meet specific performance requirements and solve connection and sealing problems in special environments.

[0038] Furthermore, the insulating material can be fluoroplastic. Fluoroplastics are chosen as filler materials due to their excellent resistance to high and low temperatures, corrosion resistance, and electrical insulation properties. They can adapt to extreme environmental conditions, ensuring the stability and service life of connector 1 in complex environments. Fluoroplastics have high chemical stability, maintaining their physical and electrical properties in extreme temperature and corrosive environments, thus providing reliable electrical isolation and structural support. The technical solution in this embodiment significantly improves the environmental adaptability and long-term reliability of connector 1, making it suitable for applications with high reliability requirements. In other embodiments, other insulating materials with similar properties can also be used to solve the problems of electrical isolation and structural support in specific environments.

[0039] Figure 4 This is a schematic diagram of the structure of the metal connector 11 in the embodiment of this application.

[0040] Furthermore, such as Figure 4As shown, the metal connector 11 can be a long metal tube; wherein, the second end 112 of the metal connector 11 has a plug groove 114, which extends along the length of the metal connector 11. The long metal tube structure simplifies the processing and assembly of the connector 1, improves conductivity stability and mechanical connection strength; the design of the plug groove 114 facilitates the insertion with external connectors, enhancing the reliability of the mechanical connection, that is, the external connector can be inserted into the plug groove 114, thereby realizing the electrical connection between the external connector and the metal connector 11. The structural design of the long metal tube is conducive to stable signal transmission, while the plug groove 114 provides precise docking with external devices, ensuring the stability of the electrical connection and the reliability of the mechanical connection. The technical solution in this embodiment simplifies the assembly process of the connector 1, improves the stability of the electrical connection and the reliability of the mechanical connection, and is conducive to modular assembly and maintenance. In other embodiments, the size of the long metal tube and the design of the plug groove 114 can be adjusted to accommodate external connectors of different specifications, solving the electrical connection and mechanical docking problems in different application scenarios.

[0041] like Figure 4 As shown, the section of the metal connector 11 near the first end 111 is a solid cylinder, while the first section near the second end 112 is a hollow cylinder. Of course, in some embodiments, the section of the metal connector 11 near the first end 111 may also be a hollow cylinder.

[0042] The wires of the accelerometer can be soldered to the end face of the first end 111 to achieve an electrical connection between the metal connector 11 and the accelerometer. Of course, the specific connection method is not fixed. For example, when the section of the metal connector 11 near the first end 111 is a hollow cylinder, it can also be soldered to the inner surface of the hollow cylinder.

[0043] Furthermore, such as Figure 1 and Figure 4 As shown, the outer surface of the end of the housing 13 facing the second end 112 has threads for threaded connection with external equipment. The threaded connection provides reliable fixation between the connector 1 and the external equipment, enhancing mechanical connection strength and sealing performance. The threaded design facilitates control over the connection range and position between the connector 1 and the external equipment, improving the consistency of the connection process. The technical solution in this embodiment effectively prevents the connector 1 from loosening or falling off in high-vibration or high-pressure environments, improving the stability and reliability of the overall system. In other embodiments, other types of mechanical connection methods, such as snap-fit ​​connections or crimp connections, can be used to adapt to connection requirements in different application scenarios and solve mechanical connection problems in specific environments.

[0044] Furthermore, the end face of the outer shell 13 facing the first end 111 is a third end face 132; a positioning ring 133 is provided around the outer surface of a section of the outer shell 13 facing the third end face 132; a preset distance is maintained between the third end face 132 and the positioning ring 133. The positioning ring 133 improves the positioning accuracy and convenience during assembly, and the preset distance ensures a stable fit between the outer shell 13 and the sensor end face. The positioning ring 133, through contact with the sensor end face, defines the assembly position of the outer shell 13, while the preset distance ensures the consistency of assembly and the correct installation of the sealing ring 12. The technical solution in this embodiment improves assembly quality and efficiency, reduces tolerance interference during welding or bonding, and enhances the connection stability between the connector 1 and the sensor. In other embodiments, the position of the positioning ring 133 and the preset distance can be adjusted to adapt to the assembly requirements of different sensors and solve the problem of assembly consistency in different application scenarios.

[0045] Furthermore, the outer shell 13 is a metal shell, and the outer shell 13 is welded to the accelerometer sensor; wherein, the outer surface between the first end 111 and the positioning ring 133 is the welding surface 134. The welding connection provides a robust and permanent connection between the connector 1 and the sensor, enhancing structural stability and signal transmission reliability. The welding surface 134 facilitates control of the welding range and position, improving the consistency of the welding process and the connection strength. The technical solution in this embodiment effectively avoids loosening or incomplete welding problems that occur under high-frequency vibration or temperature cycling, significantly improving the connection reliability between the connector 1 and the sensor and the overall electrical performance of the system. In other embodiments, other types of connection methods, such as bolted connections or adhesive bonding, can be used to adapt to the connection requirements of different application scenarios and solve the connection stability problem in specific environments.

[0046] This application also provides an accelerometer sensor, comprising a sensor and the aforementioned connector 1. Integrating the optimized connector 1 into the accelerometer sensor achieves an efficient, stable, and reliable electrical connection between the sensor and external devices. The optimized design of connector 1 and its integration with the sensor improves the overall system's structural sealing and connection reliability, enhancing the sensor's electrical performance and lifespan in complex environments. The technical solution in this embodiment significantly improves the environmental adaptability and long-term reliability of the accelerometer sensor, making it suitable for high-reliability applications such as aviation, aerospace, and automotive. In other embodiments, the structure and materials of connector 1 can be further optimized to adapt to the characteristics and application requirements of different sensors, solving signal transmission and structural sealing problems in specific environments.

[0047] The technical solution of this application relates to the working and usage process of connector 1. During operation, the metal connector 11 is connected to the internal circuit of the accelerometer through the first end 111 to achieve stable signal transmission. During use, connector 1 is mechanically fixed and electrically connected to external equipment through the insertion slot 114 and threaded connection of the second end 112. The sealing ring 12, filler 14 and adhesive layer 15 work together to ensure the sealing performance and structural stability of connector 1 under complex environmental conditions, thereby ensuring the reliability of sensor signal transmission and the overall environmental adaptability of the sensor.

[0048] Figure 5 This is an exploded view of the connector and wiring terminals in the embodiments of this application; Figure 6 This is a left view of the wiring terminals in an embodiment of this application; Figure 7 yes Figure 6 Sectional view at point BB; Figure 8 This is an exploded view of the wiring terminals in the embodiments of this application.

[0049] One aspect of this application provides a wiring terminal for an acceleration sensor, such as... Figures 5 to 8 As shown, it includes a terminal body 2, a connecting shell 3, and a sealing ring 4. The terminal body 2 is connected to the connector 1 of the accelerometer and the cable 5, respectively. The connecting shell 3 is sleeved on the terminal body 2 and is used to fix the accelerometer connector 1 and the terminal body 2. Specifically, the connecting shell 3 is connected to the outer shell 13 of the connector 1. The sealing ring 4 is sleeved on the terminal body 2 and is located at the end of the terminal body 2 facing the connector 1. The sealing ring 4 is set close to the electrical connection between the terminal body 2 and the connector 1.

[0050] This application relates to a wiring terminal for an accelerometer. By configuring a terminal body 2, a connecting shell 3, and a sealing ring 4, a stable connection is achieved between the connector 1, the cable 5, and the terminal body 2. In particular, the sealing ring 4 is located at the end of the terminal body 2 facing the connector 1, precisely at the junction of the wiring terminal and the connector 1's wiring terminal. This forms a sealing barrier at this critical location, effectively preventing moisture, dust, and other impurities from entering the electrical connection between the wiring terminal and the connector 1 through the gap, thus preventing a short circuit. Simultaneously, the sealing effect of the sealing ring 4 ensures the reliability of the electrical connection, significantly improving the stability and service life of the accelerometer under complex operating conditions such as thermal cycling, humidity, and vibration.

[0051] One aspect of this application provides a further improved terminal block. The terminal body 2 includes a central cylinder 21 and a pin 22. The central cylinder 21 is hollow, and the section of the central cylinder 21 facing the connector 1 is a limiting section 2111, on which a sealing ring 4 is sleeved. A connecting shell 3 is sleeved outside the central cylinder 21 and connected to the central cylinder 21 along its axial direction. The pin 22 is fixed inside the central cylinder 21 and coaxially arranged with it. The pin 22 is used to insert into the metal connector 11 of the connector 1 near its second end 112, specifically into the insertion groove 114 of the second end 112 along the axial direction of the metal connector 11, thereby achieving an electrical connection between the pin 22 and the metal connector 11. In addition, the cable 5 is fixed inside the central cylinder 21 and electrically connected to the pin 22. Therefore, through the connector 1 and the terminal block, an electrical connection between the cable 5 and the acceleration sensor can be achieved.

[0052] The middle cylinder 21, as a core component, not only carries the cable 5 and the pin 22, but also provides precise positioning for the sealing ring 4, ensuring reliable sealing. The coaxial arrangement of the pin 22 and the connector 1 ensures the straightness of the electrical signal transmission path, reducing signal loss. The technology in this embodiment achieves a stable connection between the cable 5 and the sensor, while the precise positioning of the sealing ring 4 enhances the sealing effect, ensuring stable sensor performance during thermal cycling tests. In other embodiments, the sealing requirements under higher pressure or more complex environmental conditions can be addressed by changing the material of the middle cylinder 21 or adding additional sealing structures.

[0053] One aspect of this application provides a further refined terminal block structure, such as... Figure 7 and Figure 8 As shown, the middle tube 21 includes a tube body 211 and a tail tube 212. A connecting shell 3 is fitted onto the tube body 211, a pin 22 is coaxially disposed inside the tube body 211, and a sealing ring 4 is fitted onto the tube body 211. The tail tube 212 is operably inserted into the tube body 211 and coaxially disposed with the tube body 211. The cable 5 is located inside the tail tube 212 and is electrically connected to the pin 22. This modular design makes the assembly and maintenance of the terminal block more convenient. The separate structure of the tube body 211 and the tail tube 212 facilitates the connection and replacement of the cable 5. The coaxial arrangement of the tail tube 212 and the tube body 211 ensures the continuity and stability of electrical signal transmission. The technology in this embodiment simplifies the production process, reduces manufacturing costs, and improves the maintainability of the terminal block, extending its service life. In other embodiments, different specifications of tail tubes 212 can be used to accommodate cables 5 of different diameters, meeting diverse needs.

[0054] One aspect of this application provides a more specific terminal block structure. Along the axial direction of the cylindrical body 211, the cylindrical body 211 includes a head section, a middle section 2112, and a tail section 2113. The head section is a limiting section 2111, and the outer diameter of the middle section 2112 is larger than that of the head section and the tail section 2113. Along the axial direction of the cylindrical body 211, the connecting shell 3 includes a threaded cylinder 31 and a limiting cylinder 32 coaxially fixedly connected. The inner ring surface of the threaded cylinder 31 has threads. The connecting cylinder is used to slide along the axis of the cylindrical body 211 towards the connector 1 and is threaded with the outer shell 13 of the connector 1. The limiting cylinder 32 is used to abut against the stepped surface between the middle section 2112 and the tail section 2113 after the connecting shell 3 slides to its limit position towards the connector 1.

[0055] In the specific working process, the pin 22 of the terminal block is first inserted into the hollow cylinder of the second end 112 of the metal connector 11. Then, the connecting shell 3 is pushed towards the connector 1, and the connecting shell 3 and the outer shell 13 of the connector 1 are connected by threads. When the connecting shell 3 moves to its limit position, its limiting cylinder 32 abuts against the stepped surface between the middle section 2112 and the tail section 2113 of the cylinder body 211, thereby achieving stable limiting and fixing. During this process, the sealing ring 4 simultaneously abuts against the end face of the second end 112 of the metal connector 11. After the above steps are completed, a complete connector structure is formed, which can ensure a stable electrical connection between the accelerometer and the external cable 5. Since the sealing ring 4 acts directly on the end face of the second end 112 of the metal connector 11, a key seal is formed at the core electrical connection part between the terminal block and the connector 1, effectively preventing the infiltration of moisture and impurities, thereby significantly improving the overall sealing effect and reliability.

[0056] One aspect of this application provides a terminal block with an optimized configuration of the sealing ring 4, wherein the outer diameter of the sealing ring 4 is equal to the outer diameter of the middle section 2112. It should be noted that "equal" here can be understood as essentially equal, meaning the outer diameter of the sealing ring 4 can be slightly larger or slightly smaller than the outer diameter of the middle section 2112. In this structure, the sealing ring 4 can tightly fit against the outer surface of the middle cylinder 21, forming a reliable sealing layer, thereby significantly improving the sealing performance of the sealing ring 4, effectively preventing moisture or other impurities from entering the sensor, and ensuring the long-term stable operation of the sensor. In other embodiments, the thickness or hardness of the sealing ring 4 can be finely adjusted to adapt to the sealing requirements under different pressure levels, thereby further improving the environmental adaptability and application range of the terminal block.

[0057] One aspect of this application provides a terminal block with an improved connection method between the tail tube 212 and the cylinder 211, wherein the tail tube 212 and the cylinder 211 are threaded together. The threaded connection provides higher connection strength and stability, ensuring the secure fixation of the cable 5 in complex environments. The self-locking characteristic of the thread maintains a tight connection between the tail tube 212 and the cylinder 211 even in vibration environments, preventing the cable 5 from loosening. The technology in this embodiment not only improves the mechanical strength of the terminal block but also simplifies the installation and replacement process of the cable 5, increasing work efficiency. In other embodiments, the reliability of the connection can be further enhanced by adding anti-loosening washers or using special threads to cope with higher frequency vibration environments.

[0058] One aspect of this application provides a terminal block with enhanced insulation performance. The inner cylinder 21 is filled with insulating filler 23, which is located between the pin 22 and the inner annular surface of the inner cylinder 21. Preferably, the insulating filler 23 is fluoroplastic. The fluoroplastic filling not only enhances the insulation between the pin 22 and the inner cylinder 21 but also improves the overall high and low temperature resistance and corrosion resistance of the terminal block. The insulating filler 23 isolates the pin 22 from direct contact with the inner cylinder 21, preventing current leakage or short circuits. The technology in this embodiment significantly improves the electrical safety of the terminal block and extends its service life in harsh environments. In other embodiments, the insulation effect can be further optimized by using other high-performance insulating materials, such as polytetrafluoroethylene (PTFE) or silicone rubber, to meet more stringent safety standards.

[0059] One aspect of this application provides a complete connector for an accelerometer, comprising the terminals of the accelerometer as described in any of the above embodiments and the connector 1 as described in any of the above embodiments. Connector 1 is electrically connected to the accelerometer, and the terminals are electrically connected to connector 1. This combined design integrates the terminals and connector 1 into a single, fully functional connector unit. The electrical connection between the terminals and connector 1 ensures lossless transmission of the sensor signal while providing physical stability. The technology in this embodiment simplifies the sensor installation and debugging process and improves the overall reliability of the system.

[0060] This embodiment improves the terminal block structure, particularly by incorporating a sealing ring 4 at the junction of the terminal body 2 and the connector 1. This sealing ring 4 directly seals the pin 22 and the connector 1's socket, which is the insertion slot 114 of the second end 112 of the metal connector 11. This effectively cuts off the path for external moisture to enter. Compared to traditional methods that only seal the outer casing 13 or the connector 1, the sealing ring 4 in this solution is more rationally arranged, significantly enhancing the sealing effect. Specifically, the sealing ring 4 is located at the junction of the pin 22 and the connector 1's socket, thus forming a direct sealing surface at the most critical location. This effectively prevents moisture, liquid, or gas from entering the pin 22 through the junction, thus avoiding a short circuit in the pin 22's circuitry. By preventing the intrusion of moisture and impurities, this solution avoids sensor impedance degradation or short circuit problems, ensuring accurate transmission of the acceleration signal. Simultaneously, the connecting shell 3 reliably fixes the terminal body 2 and the connector 1, making the overall mechanical connection more stable and further improving vibration resistance. Furthermore, this invention has a simple structure, is easy to manufacture, and has low cost, making it valuable for mass production and application.

[0061] like Figure 4 ,like Figure 5 and Figure 7 As shown, the working process of connecting connector 1 and terminal block is as follows: First, the cable 5 is passed through the tail tube 212 and fixed on the pin 22 to form an electrical connection; then, the tail tube 212 is screwed into the cylinder 211 until it is fully engaged with the thread of the cylinder 211 to ensure the cable 5 is secure; next, the sealing ring 4 is fitted onto the limiting section 2111 of the middle cylinder 21 to form a seal using its elastic properties; subsequently, the pin 22 of the terminal block is inserted into the insertion groove 114 of the second end 112 of the metal connector 11 (see... Figure 4 Inside; finally, slide the connecting shell 3 along the axis of the middle cylinder 21, and the connecting shell 3 is fitted onto the outer shell 13. The connecting shell 3 and the outer shell 13 are threaded together until the limiting cylinder 32 abuts against the stepped surface between the middle section 2112 and the tail section 2113 (see Figure 7 and Figure 8 This completes the connector, ensuring a stable electrical connection between the sensor and external circuitry. Throughout use, the sealing ring 4 continuously functions, preventing moisture from entering the pin 22 and causing a short circuit. It also further prevents moisture from entering the sensor's interior, protecting it from damage. The presence of insulating fillers such as fluoroplastics 23 further enhances electrical safety and signal transmission stability. This connector design significantly improves the reliability and lifespan of the accelerometer in harsh environments.

[0062] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A terminal for an acceleration sensor, characterized by, include: The terminal body is connected to the connector of the acceleration sensor and the cable, respectively; A connecting shell, which is sleeved outside the terminal body, is used to fix the acceleration sensor connector and the terminal body; A sealing ring is sleeved on the terminal body and located at the end of the terminal body facing the connector. The sealing ring is positioned near the electrical connection between the terminal body and the connector.

2. The terminal for an acceleration sensor according to claim 1, characterized by The terminal body includes: The middle cylinder is hollow and has a limiting section facing the joint. The sealing ring is sleeved on the limiting section. The connecting shell is sleeved outside the middle cylinder and connected to the middle cylinder along the axial direction of the middle cylinder. A pin is fixed inside the middle cylinder and coaxially arranged with the middle cylinder. The pin is used to insert into the connector and is electrically connected to the connector. The cable is fixed inside the middle cylinder and electrically connected to the pin.

3. The terminal for an acceleration sensor according to claim 2, characterized by The middle cylinder includes: The cylindrical body, the connecting shell is sleeved on the cylindrical body, the insert pin is coaxially disposed inside the cylindrical body, and the sealing ring is sleeved on the cylindrical body; A tail tube is operably inserted into the cylinder and coaxially arranged with the cylinder. The cable is located inside the tail tube and electrically connected to the pin.

4. The terminal for an acceleration sensor according to claim 3, characterized by Along the axial direction of the cylinder, the cylinder includes a head section, a middle section and a tail section, the head section is the limiting section, and the outer diameter of the middle section is larger than that of the head section and the tail section; Along the axial direction of the cylinder, the connecting shell includes: a threaded cylinder and a limiting cylinder coaxially fixedly connected, the inner ring surface of the threaded cylinder has threads, and the connecting cylinder is used to slide along the axis of the cylinder toward the joint and between the threads of the joint; The limiting cylinder is used to abut against the stepped surface between the middle section and the tail section after the connecting shell slides to its limit position in the direction of the joint.

5. The terminal for an acceleration sensor according to claim 4, characterized by The outer diameter of the sealing ring is equal to the outer diameter of the middle section.

6. The terminal for an acceleration sensor according to claim 3, characterized by The tail tube is threadedly connected to the cylinder.

7. The terminal for an acceleration sensor according to claim 2, characterized by The middle cylinder is filled with insulating filler, which is located between the pin and the inner annular surface of the middle cylinder.

8. The terminal for an acceleration sensor according to claim 7, characterized by The insulating filler is a fluoroplastic.

9. A wiring adapter for an acceleration sensor, characterized by The connector includes: The wiring terminals of the accelerometer as described in any one of claims 7; The connector is electrically connected to the acceleration sensor, and the terminal block is electrically connected to the connector.

10. The wiring harness for an acceleration sensor according to claim 9, wherein The connector includes: A metal connector, wherein the two ends of the metal connector along its length are a first end and a second end, and the first end is used for electrical connection with an acceleration sensor; A housing, which is fitted over the metal connector; The pin of the terminal body is used to insert into the second end of the metal connector, and the sealing ring abuts against the end face of the second end.

11. The wiring harness for an acceleration sensor according to claim 10, wherein The connecting shell is used to move along the axial direction of the terminal body, is sleeved on the outer shell, and is threadedly connected to the outer shell.

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