Terminal lead connecting structure of sensor

Abstract

The utility model relates to a terminal lead connecting structure of a sensor. The terminal lead connecting structure comprises a shell, a cover plate and a terminal, the shell is fixed on the sensor; the cover plate and the shell are clamped and fixed, a wiring channel is formed between the inner side face of the cover plate and the outer side face of the shell, and the middle of the wiring channel is a bent section; the terminal is fixed at the lower part of the outer side surface of the shell; wherein one end of the wire is connected with the terminal in a crimping manner, the other end of the wire passes through the wiring channel and then penetrates out, and the bending section of the wiring channel can clamp the wire. After the cover plate and the shell are clamped and fixed, the wire is clamped by the bending section, if the wire is pulled or vibrated in the use process of the sensor, the wire is clamped by the bending section, so that the force borne by the wire can be stopped outside the bending section, the force is not transmitted to the joint of the wire and the terminal, the effect of protecting the terminal is achieved, and the service life of the sensor is prolonged. Wires are effectively prevented from falling off, and automobile driving safety is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of sensor technology, and in particular relates to a terminal wire connection structure for a sensor. Background Technology

[0002] During the wiring process of the sensor, the wires need to be connected to the terminals of the sensor. Currently, the wires and the terminals of the sensor are mainly connected by direct crimping. This connection method has low connection strength and poor wire fixation. When the sensor is installed in the position of the car engine, the environment is relatively harsh and the vibration is relatively large, which can easily cause the wires to fall off, affecting the driving safety of the car. Utility Model Content

[0003] The main objective of this invention is to propose a terminal wire connection structure for a sensor, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A terminal wire connection structure for a sensor, including

[0006] The housing is fixed to the sensor;

[0007] A cover plate is snapped and fixed to the housing. A wiring channel is formed between the inner side of the cover plate and the outer side of the housing, and the middle part of the wiring channel is a bent section.

[0008] Terminals are fixed to the lower part of the outer side of the housing;

[0009] One end of the wire is crimped to the terminal, and the other end passes through the wiring channel and exits. The bending section of the wiring channel can clamp the wire.

[0010] Preferably, the terminal has a U-shaped groove structure, and both ends can be bent inward to wrap the wire.

[0011] Preferably, the upper and lower parts of the wiring channel are vertical sections, and the two vertical sections are connected by the bending section.

[0012] Preferably, the outer side of the housing has side plates on both sides, one side plate has a slot, and the other side plate has a guide groove on its top.

[0013] A plug-in block extends outward from the lower part of the outer side of the housing, and a T-shaped groove is formed in the plug-in block;

[0014] One side of the cover plate has a buckle for fastening into the slot, and the other side of the cover plate has a guide post for inserting into the guide groove. The lower part of the inner side of the cover plate has a T-shaped block for inserting into the T-shaped groove.

[0015] Preferably, the cover plate includes an upper plate and a lower plate, wherein the width of the upper plate is greater than that of the lower plate;

[0016] One bottom end of the upper plate is fixedly connected to the top of the lower plate, and the other bottom end is fixedly connected to the inner side of the lower plate through a limiting block.

[0017] The outer side of the housing is inclined at the middle, and the limiting block is used to form a bending section with the outer side of the housing to form a wiring channel. Its contact surface with the wire is also inclined.

[0018] Preferably, the top surface of the upper plate has an opening groove, which is used to form a potting groove with the outer side of the housing.

[0019] Preferably, the number of terminals is three, for connecting to three wires, with the middle terminal located inside the plug block;

[0020] Two isolation blocks extend outward from the upper part of the outer side of the housing to separate the three wires;

[0021] The limiting block is divided into three sections, which are used to clamp the three wires respectively.

[0022] Preferably, a reinforcing rib is fixed to the inner side of the lower plate, and the reinforcing rib corresponds to the terminal.

[0023] This utility model provides a terminal wire connection structure for a sensor, which has the following advantages:

[0024] 1. After the cover plate and housing are snapped together, the bent section clamps the wire. If the sensor pulls or vibrates the wire during use, clamping the wire by the bent section can prevent the force on the wire from being transmitted to the connection between the wire and the terminal, thus protecting the terminal and effectively preventing the wire from falling off, ensuring the safety of driving the car.

[0025] 2. The terminal has a U-shaped groove structure, and both ends can be bent inward to wrap around the wire, so that the terminal and the wire are completely locked together to prevent the wire from loosening.

[0026] 3. The fit between the T-block and the T-slot, as well as the fit between the guide post and the guide groove, ensures that the cover plate is smoothly inserted into the housing and effectively prevents the cover plate from shaking or tilting. The fit between the buckle and the slot ensures that the cover plate is snapped and fixed to the housing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the terminal wire connection structure of this utility model;

[0028] Figure 2 A cross-sectional view of the terminal wire connection structure of this utility model. Figure 1 ;

[0029] Figure 3 This is a schematic diagram of the crimping of the terminal of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the shell of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the cover plate of this utility model;

[0032] Figure 6 A cross-sectional view of the terminal wire connection structure of this utility model. Figure 2 .

[0033] In the diagram: 1. Housing; 11. Side plate; 111. Slot; 112. Guide groove; 12. Connecting block; 13. Isolation block; 121. T-slot; 2. Cover plate; 21. Top plate; 211. Opening groove; 22. Bottom plate; 23. Buckle; 24. Guide post; 25. T-block; 26. Limiting block; 27. Reinforcing rib; 3. Terminal; 4. Wiring channel; 5. Glue potting tank; 100. Sensor; 200. Wire. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0035] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Example

[0039] Reference Figure 1-2 A terminal wire connection structure for a sensor, used to connect a wire to the terminal of the sensor, including...

[0040] Housing 1, fixed to sensor 100;

[0041] The cover plate 2 is snapped and fixed to the housing 1. A wiring channel 4 is formed between the inner side of the cover plate 2 and the outer side of the housing 1. The middle part of the wiring channel 4 is a bent section.

[0042] Terminal 3 is fixed to the lower part of the outer side of the housing 1, and terminal 3 itself is connected to the PCB of sensor 100;

[0043] One end of the wire 200 is crimped to the terminal 3, and the other end passes through the wiring channel 4. The bent section of the wiring channel 4 can clamp the wire 200.

[0044] After the cover plate 2 is snapped and fixed to the housing 1, the bent section clamps the wire 200. If the sensor pulls or vibrates the wire 200 during use, clamping the wire 200 by the bent section can prevent the force on the wire 200 from being transmitted to the connection between the wire 200 and the terminal 3, thereby protecting the terminal 3, effectively preventing the wire 200 from falling off, and ensuring the safety of driving the car.

[0045] In one specific implementation, the terminal 3 has a U-shaped groove structure, with both ends bent inward to wrap the wire 200. Preferably, the terminal 3 is directly injection molded onto the housing 1 to ensure a stable connection between the terminal 3 and the housing 1. In actual use, the wire 200 is inserted into the terminal 3, and a special crimping device is used to crimp the terminal 3 into the desired shape. Figure 3The shape shown ensures that terminal 3 is completely locked to wire 200, preventing wire 200 from becoming loose.

[0046] In one specific implementation, the upper and lower parts of the wiring channel 4 are vertical sections, and the two vertical sections are connected by the bending section. The vertical sections facilitate the surface processing of the housing 1 and the cover plate 2, and also facilitate the design of the subsequent snap-fit ​​structure between the cover plate 2 and the housing 1.

[0047] In a specific implementation plan, refer to Figure 4-6 A snap-fit ​​structure is provided for the cover plate 2 and the housing 1;

[0048] The outer side of the housing 1 has side plates 11 on both sides, one of the side plates 11 has a slot 111, and the other side plate 11 has a guide groove 112 on its top.

[0049] A plug-in block 12 extends outward from the lower part of the outer side of the housing 1, and a T-shaped groove 121 is provided in the plug-in block 12;

[0050] One side of the cover plate 2 has a buckle 23 for fastening into the slot 111, and the other side of the cover plate 2 has a guide post 24 for inserting into the guide groove 112. The lower part of the inner side of the cover plate 2 has a T-shaped block 25 for inserting into the T-shaped groove 121.

[0051] After one end of the wire 200 is crimped to the terminal 3, the T-shaped block 25 of the cover plate 2 is aligned with the T-shaped groove 121 of the housing 1, and the guide post 24 is aligned with the guide groove 112. The cover plate 2 is pressed down until the buckle 23 is engaged in the slot 111, thus completing the snap-fit ​​fixing of the cover plate 2 and the housing 1. The cooperation between the T-shaped block 25 and the T-shaped groove 121 and the cooperation between the guide post 24 and the guide groove 112 can ensure that the cover plate 2 is smoothly inserted into the housing 1 and effectively prevent the cover plate 2 from shaking or tilting. The cooperation between the buckle 23 and the slot 111 can ensure that the cover plate 2 and the housing 1 are snap-fit ​​fixed.

[0052] In one specific implementation, the cover plate 2 includes an upper plate 21 and a lower plate 22, wherein the width of the upper plate 21 is greater than that of the lower plate 22;

[0053] One bottom end of the upper plate 21 is fixedly connected to the top of the lower plate 22, and the other bottom end is fixedly connected to the inner side of the lower plate 22 through a limiting block 26; the buckle 23 is a hook structure, fixed to the bottom of the upper plate 21, and extends outward.

[0054] The outer side of the housing 1 is inclined at the middle. The limiting block 26 is used to form a bending section of the wiring channel 4 with the outer side of the housing 1. Its contact surface with the wire 200 is also inclined. The limiting block 26 bends and presses the wire 200.

[0055] In one specific implementation, the top surface of the upper plate 21 has an opening groove 211, which is used to form a grouting groove 5 with the outer side of the housing 1. After grouting in the grouting groove, the wire 200, the housing 1 and the cover plate 2 can be fixed together, further preventing external pulling or vibration from affecting the connection between the wire 200 and the terminal 3.

[0056] In one specific implementation, the design is further based on a commonly used three-wire sensor; the number of terminals 3 is three, used to connect to three wires 200, with the middle terminal 3 located inside the plug block 12; two isolation blocks 13 extend outward from the upper part of the outer side of the housing 1, used to separate the three wires 200, so that the wires 200 are arranged in an orderly manner, preventing the wires 200 from tangling and interacting; the limiting block 26 is divided into three sections, which are used to clamp the three wires 200 respectively.

[0057] In one specific implementation, a reinforcing rib 26 is fixed on the inner side of the lower plate 22. The reinforcing rib 26 corresponds to the terminal 3, and the number and position are also corresponding. In this embodiment, three reinforcing ribs 26 are provided for the three terminals 3. The reinforcing rib 26 not only strengthens the cover plate 2, but also limits the terminals 3 and wires 200 to a certain extent, and further fixes the terminals and wires.

[0058] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A terminal wire connection structure for a sensor, characterized in that: include The housing is fixed to the sensor; A cover plate is snapped and fixed to the housing. A wiring channel is formed between the inner side of the cover plate and the outer side of the housing, and the middle part of the wiring channel is a bent section. Terminals are fixed to the lower part of the outer side of the housing; One end of the wire is crimped to the terminal, and the other end passes through the wiring channel and exits. The bending section of the wiring channel can clamp the wire.

2. The terminal wire connection structure of a sensor according to claim 1, characterized in that: The terminal has a U-shaped groove structure, and both ends can be bent inward to wrap the wire.

3. The terminal wire connection structure of a sensor according to claim 1, characterized in that: The upper and lower parts of the wiring channel are vertical sections, and the two vertical sections are connected by the bending section.

4. The terminal wire connection structure of a sensor according to claim 1, characterized in that: The outer side of the housing has side plates on both sides, one side plate has a slot, and the top of the other side plate has a guide groove. A plug-in block extends outward from the lower part of the outer side of the housing, and a T-shaped groove is formed in the plug-in block; One side of the cover plate has a buckle for fastening into the slot, and the other side of the cover plate has a guide post for inserting into the guide groove. The lower part of the inner side of the cover plate has a T-shaped block for inserting into the T-shaped groove.

5. The terminal wire connection structure of a sensor according to claim 4, characterized in that: The cover plate includes an upper plate and a lower plate, wherein the width of the upper plate is greater than that of the lower plate; One bottom end of the upper plate is fixedly connected to the top of the lower plate, and the other bottom end is fixedly connected to the inner side of the lower plate through a limiting block. The outer side of the housing is inclined at the middle, and the limiting block is used to form a bending section with the outer side of the housing to form a wiring channel. Its contact surface with the wire is also inclined.

6. The terminal wire connection structure of a sensor according to claim 5, characterized in that: The top surface of the upper plate has an opening groove, which is used to form a potting groove with the outer side of the housing.

7. The terminal wire connection structure of a sensor according to claim 5, characterized in that: The number of terminals is three, used to connect to three wires, with the middle terminal located inside the plug block; Two isolation blocks extend outward from the upper part of the outer side of the housing to separate the three wires; The limiting block is divided into three sections, which are used to clamp the three wires respectively.

8. The terminal wire connection structure of a sensor according to claim 5 or 7, characterized in that: The inner side of the lower plate is fixed with reinforcing ribs, which correspond to the terminals.

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