Anti-falling automobile oxygen sensor

Abstract

The utility model relates to the technical field of automobile oxygen sensor, disclose a kind of anti-falling automobile oxygen sensor, including sensor main body, wiring harness connector, the fixed connection of connecting wire is between sensor main body, wiring harness connector, the outside of connecting wire is provided with anti-bending assembly, the outside of sensor main body is equipped with mounting thread, the fixed connection of sealing baffle is in the outside of sensor main body, the surface fixed connection of sealing baffle is equipped with sealing rubber ring, the surface of wiring harness connector is provided with anti-falling assembly.The utility model in, through mounting thread, realize sensor main body firm assembly, sealing baffle cooperates sealing rubber ring and forms effective sealing, prevent exhaust leakage and impurity invasion, in anti-falling assembly, double telescopic pin joint lock hole, reinforcing plate is fixed by first connecting bolt, double mechanism avoids wiring harness connector to fall off, guarantee overall stable work, improve reliability.

Description

Technical Field

[0001] This utility model relates to the field of automotive oxygen sensor technology, and in particular to an anti-detachment automotive oxygen sensor. Background Technology

[0002] In automotive emission systems, the oxygen sensor is a crucial component of the fuel injection system in automotive engines.

[0003] The automotive oxygen sensor monitors the oxygen content in the vehicle's exhaust gas in real time and converts the detected signal into an electrical signal, which is then transmitted to the engine electronic control unit (ECU). The ECU adjusts the fuel injection quantity based on this signal to keep the engine in the optimal air-fuel ratio, thereby improving fuel efficiency and reducing harmful gas emissions.

[0004] While existing automotive oxygen sensors can detect vehicle exhaust gases, their sealing performance after installation is poor. External dust and moisture can easily enter through installation gaps, and exhaust gases may also leak, affecting detection accuracy. The wiring harness connector and socket connection are prone to detachment due to vehicle vibration, leading to signal interruption. During long-term use, the connecting wires are prone to excessive bending and damage near the sensor body and wiring harness connector, affecting signal and power transmission, shortening service life, and causing inconvenience to normal vehicle operation and emission control. Therefore, an anti-detachment automotive oxygen sensor is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an anti-detachment automotive oxygen sensor, which aims to solve the problems in the prior art where the wiring harness connection is easily detached due to vibration and the connecting wire is easily damaged due to bending, thereby affecting the stability of signal transmission and service life, resulting in low reliability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an anti-detachment automotive oxygen sensor, comprising a sensor body and a wiring harness connector, wherein a connecting wire is fixedly connected between the sensor body and the wiring harness connector, an anti-bending component is provided on the outer side of the connecting wire, an installation thread is provided on the outer side of the sensor body, a sealing baffle is fixedly connected to the outer side of the sensor body, a sealing rubber ring is fixedly connected to the surface of the sealing baffle, and an anti-detachment component is provided on the surface of the wiring harness connector;

[0007] The anti-detachment component includes a telescopic pin and a connecting seat. The outer wall of the telescopic pin is fixedly connected to the surface of the wire harness connector, and the outer wall of the connecting seat is fixedly connected to the outer wall of the wire harness connector terminal. Reinforcing plates are fixedly connected to the upper and lower ends of the connecting seat.

[0008] As a further description of the above technical solution:

[0009] The telescopic locking pin is provided in two parts, and the two telescopic locking pins are mirrored along the central axis of the wire harness connector. The wire harness socket is provided with a size-adaptive telescopic locking pin telescopic end that engages with a locking hole.

[0010] As a further description of the above technical solution:

[0011] Two reinforcing plates are provided, and the two reinforcing plates are mirror images of each other along the central axis of the connecting seat. The outer sides of the two reinforcing plates are threaded with first connecting bolts, and the wire harness socket is provided with threaded holes of the same size as the first connecting bolts.

[0012] As a further description of the above technical solution:

[0013] Two anti-bending components are provided, and both anti-bending components include a snap-fit ​​seat. The outer wall of one snap-fit ​​seat is fixedly connected to the outer wall of the sensor body wiring terminal, and the outer wall of the other snap-fit ​​seat is fixedly connected to the outer wall of the connector wiring terminal.

[0014] As a further description of the above technical solution:

[0015] The surface of the card holder is provided with card slots. There are two card slots, which are mirror images of each other along the central axis of the card holder. The inner walls of both card slots are fitted with card mounting plates.

[0016] As a further description of the above technical solution:

[0017] A second connecting bolt is threaded between the outer side of the mounting plate and the inner wall of the slot.

[0018] As a further description of the above technical solution:

[0019] A protective sleeve is fixed to the inner side of the mounting plate, and an anti-slip pad is fixedly connected to the inner wall of the protective sleeve.

[0020] As a further description of the above technical solution:

[0021] The anti-slip pads are arranged in a ring at equal intervals, and the ends of the anti-slip pads are attached to the outer surface of the connecting line.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the sensor body is stably assembled by the installation thread, and the sealing baffle and sealing ring form an effective seal to prevent exhaust gas leakage and impurity intrusion. In the anti-detachment component, the double telescopic pins lock the locking hole and the reinforcing plate is fixed by the first connecting bolt. The dual mechanism prevents the wire harness connector from falling off, ensures the overall stable operation, and improves reliability.

[0024] 2. In this utility model, two anti-bending components are used. The card holder, card slot, and card plate are fixed by the second connecting bolt. The protective sleeve and anti-slip pad wrap the connecting wire, which specifically protects the key bending parts and avoids excessive bending damage. The connecting wire ensures signal and power transmission, realizes stable functional interaction between the sensor body and the wire harness connector, and improves the reliability and lifespan of use. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an anti-detachment automotive oxygen sensor proposed in this utility model. Figure 1 ;

[0026] Figure 2 This is a three-dimensional schematic diagram of an anti-detachment automotive oxygen sensor proposed in this utility model. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the anti-detachment component structure at the wiring harness connector of an anti-detachment automotive oxygen sensor proposed in this utility model.

[0028] Figure 4 This is a cross-sectional schematic diagram of the internal structure of an anti-bending component at the connection wire of an anti-detachment automotive oxygen sensor proposed in this utility model.

[0029] Legend:

[0030] 1. Sensor body; 2. Wiring harness connector; 3. Connecting wire; 4. Mounting thread; 5. Sealing baffle; 6. Sealing ring; 7. Anti-detachment component; 71. Telescopic latch; 72. Connecting seat; 73. Reinforcing plate; 74. First connecting bolt; 8. Anti-bending component; 81. Snap-fit ​​seat; 82. Snap-fit ​​groove; 83. Snap-fit ​​plate; 84. Protective sleeve; 85. Anti-slip pad; 86. Second connecting bolt. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3This utility model provides an embodiment of an anti-detachment automotive oxygen sensor, comprising a sensor body 1 and a wiring harness connector 2. A connecting wire 3 is fixedly connected between the sensor body 1 and the wiring harness connector 2. The connecting wire 3 is the signal and power transmission carrier between the sensor body 1 and the wiring harness connector 2, and is the core connection component for their functional interaction. Two anti-bending components 8 are provided on the outer side of the connecting wire 3, corresponding to the key bending points of the connecting wire 3 near the sensor body 1 and the wiring harness connector 2, providing targeted protection. Each anti-bending component 8 includes a retaining seat 81. The outer wall of one retaining seat 81 is fixedly connected to the outer wall of the terminal of the sensor body 1, and the outer wall of the other retaining seat 81 is fixedly connected to the outer wall of the terminal of the connector 72. The retaining seat 81 serves as the basic mounting structure for the anti-bending components 8, achieving overall positioning through fixation with the sensor body 1 and the connector 72. Two retaining slots 82 are provided on the surface of the retaining seat 81, designed for subsequent mounting of the plate 83. The installation provides symmetrical points to ensure structural stability. Two slots 82 are mirror images of the central axis of the mounting base 81, and mounting plates 83 are fitted to the inner walls of both slots 82. The mirrored distribution of the slots 82 ensures balanced force on the mounting plates 83, preventing offset caused by unilateral installation. A second connecting bolt 86 is threaded between the outer side of the mounting plate 83 and the inner wall of the slot 82, securely locking the mounting plate 83 within the slot 82 to prevent loosening and detachment. A protective sleeve 84 is fixed to the inner side of the mounting plate 83. The protective sleeve 84 provides an outer physical protection for the connecting wire 3, reducing external friction damage. The inner wall of the protective sleeve 84 is fixedly connected with anti-slip pads 85. Multiple anti-slip pads 85 are distributed in a ring at equal intervals. The ring at equal intervals can form a uniform wrap around the connecting wire 3, avoiding excessive local pressure. The ends of the multiple anti-slip pads 85 are attached to the outer surface of the connecting wire 3. The tight fit between the anti-slip pads 85 and the connecting wire 3 can limit its excessive shaking. At the same time, it can buffer external forces through its own elasticity to prevent the connecting wire 3 from bending excessively.

[0033] Reference Figure 1 , Figure 2 and Figure 4The sensor body 1 has mounting threads 4 on its outer side. These threads are used to screw the sensor body 1 into the mounting position such as the exhaust pipe of a car engine for a secure assembly. A sealing baffle 5 is fixedly connected to the outer side of the sensor body 1. The sealing baffle 5 can prevent external dust and moisture from entering through the installation gap, thus providing a preliminary seal. A sealing ring 6 is fixedly connected to the surface of the sealing baffle 5. The sealing ring 6 cooperates with the sealing baffle 5 and fills the gap through its own elasticity, greatly improving the sealing performance and preventing exhaust gas leakage. The surface of the wire harness connector 2 is provided with an anti-detachment component 7, which includes a telescopic locking pin 71 and a connecting seat 72. The anti-detachment component 7 is a key structure to prevent the wire harness connector 2 from accidentally detaching from the corresponding socket. It includes a double anti-detachment mechanism. The outer wall of the telescopic locking pin 71 is fixedly connected to the surface of the wire harness connector 2. There are two telescopic locking pins 71. The double telescopic locking pins 71 are designed to form a symmetrical locking from both sides, improving the reliability of the anti-detachment mechanism. The two telescopic locking pins 71 are mirrored along the central axis of the wire harness connector 2, and the wire harness socket has a... The telescopic locking pin 71 is sized to fit the telescopic end of the locking pin and has a locking hole. The mirror distribution ensures that the locking force is balanced. The size matching between the locking hole and the telescopic locking pin 71 ensures a precise and firm connection. The outer wall of the connector 72 is fixedly connected to the outer wall of the wiring harness connector 2 terminal. The connector 72 provides an installation base for the reinforcing plate 73, indirectly enhancing the connection strength between the wiring harness connector 2 and the socket. The upper and lower ends of the connector 72 are fixedly connected to the reinforcing plate 73. There are two reinforcing plates 73. The double reinforcing plates 73 strengthen the connection between the connector 72 and the socket from the top and bottom, avoiding one-sided force deviation. The two reinforcing plates 73 are mirrored along the central axis of the connector 72. The outer side of the two reinforcing plates 73 is threaded with the first connecting bolt 74. The mirror distribution ensures balanced reinforcement force. The first connecting bolt 74 achieves rigid fixation between the reinforcing plate 73 and the socket through threaded connection. The wiring harness socket has threaded holes of the same size as the first connecting bolt 74. The size matching between the threaded holes and the first connecting bolt 74 ensures a firm connection and forms a double anti-dislodgement guarantee.

[0034] Working principle: When using this anti-detachment automotive oxygen sensor, it is first screwed into the corresponding mounting position such as the exhaust pipe of the car engine through the mounting thread 4 on the outside of the sensor body 1 to achieve overall fixation. During the installation process, the sealing baffle 5 on the outside of the sensor body 1, together with the sealing rubber ring 6 on its surface, prevents external dust and moisture from entering through the sealing baffle 5, and the sealing rubber ring 6 fills the installation gap with its own elasticity to form an effective seal and prevent exhaust gas leakage.

[0035] The sensor body 1 and the wire harness connector 2 transmit signals and power through the connecting line 3. To prevent the connecting line 3 from being damaged by bending during long-term use, two anti-bending components 8 are set on its outer side and act on the key parts near the sensor body 1 and the wire harness connector 2 respectively: the card holder 81 cooperates with the card plate 83 through the card slot 82 and is fixed by the second connecting bolt 86, so that the protective sleeve 84 on the inner side of the card plate 83 wraps the connecting line 3. Multiple annular anti-slip pads 85 distributed at equal intervals on the inner wall of the protective sleeve 84 are tightly attached to the surface of the connecting line 3. The protective sleeve 84 provides an outer physical protection, and the anti-slip pads 85 limit the excessive shaking of the connecting line 3. At the same time, the elasticity of the anti-slip pads 85 buffers the external force and prevents the connecting line 3 from bending excessively.

[0036] When the wire harness connector 2 is connected to the corresponding wire harness socket, the anti-disconnection component 7 plays a key role: the telescopic ends of two telescopic locking pins 71, which are symmetrically distributed along the central axis of the wire harness connector 2, are engaged in the matching locking holes on the wire harness socket to form the first layer of locking anti-disconnection. At the same time, the connector 72 of the wire harness connector 2 terminal is connected to the matching threaded hole on the wire harness socket through the reinforcing plates 73 at the upper and lower ends and the first connecting bolt 74 to form the second layer of rigid fixation. The dual anti-disconnection mechanism works together to prevent the wire harness connector 2 from accidentally disengaging from the wire harness socket.

[0037] Overall, the components work together to ensure the stable installation and sealing of the sensor, protect the connecting wire 3 through the anti-bending component 8, and ensure the reliability of the wiring harness connection with the help of the anti-detachment component 7, thereby achieving stable operation of the sensor and preventing it from falling off.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A car oxygen sensor designed to prevent detachment, comprising a sensor body (1) and a wiring harness connector (2), characterized in that: A connecting wire (3) is fixedly connected between the sensor body (1) and the wire harness connector (2). An anti-bending component (8) is provided on the outside of the connecting wire (3). An installation thread (4) is provided on the outside of the sensor body (1). A sealing baffle (5) is fixedly connected to the outside of the sensor body (1). A sealing rubber ring (6) is fixedly connected to the surface of the sealing baffle (5). An anti-detachment component (7) is provided on the surface of the wire harness connector (2). The anti-detachment component (7) includes a telescopic pin (71) and a connecting seat (72). The outer wall of the telescopic pin (71) is fixedly connected to the surface of the wire harness connector (2). The outer wall of the connecting seat (72) is fixedly connected to the outer wall of the wiring terminal of the wire harness connector (2). The upper and lower ends of the connecting seat (72) are fixedly connected to a reinforcing plate (73).

2. The anti-detachment automotive oxygen sensor according to claim 1, characterized in that: Two telescopic pins (71) are provided, and the two telescopic pins (71) are mirrored along the central axis of the wire harness connector (2).

3. The anti-detachment automotive oxygen sensor according to claim 1, characterized in that: Two reinforcing plates (73) are provided, and the two reinforcing plates (73) are mirrored along the central axis of the connecting seat (72). The outer sides of the two reinforcing plates (73) are threaded with first connecting bolts (74).

4. The anti-detachment automotive oxygen sensor according to claim 1, characterized in that: Two anti-bending components (8) are provided. Both anti-bending components (8) include a snap-fit ​​seat (81). The outer wall of one snap-fit ​​seat (81) is fixedly connected to the outer wall of the wiring terminal of the sensor body (1), and the outer wall of the other snap-fit ​​seat (81) is fixedly connected to the outer wall of the wiring terminal of the connector (72).

5. The anti-detachment automotive oxygen sensor according to claim 4, characterized in that: The surface of the card holder (81) is provided with a card slot (82). There are two card slots (82), which are mirror images of the central axis of the card holder (81). The inner walls of the two card slots (82) are fitted with a card mounting plate (83).

6. The anti-detachment automotive oxygen sensor according to claim 5, characterized in that: A second connecting bolt (86) is threaded between the outer side of the mounting plate (83) and the inner wall of the slot (82).

7. The anti-detachment automotive oxygen sensor according to claim 6, characterized in that: The inner side of the mounting plate (83) is fixed with a protective sleeve (84), and the inner wall of the protective sleeve (84) is fixedly connected with an anti-slip pad (85).

8. The anti-detachment automotive oxygen sensor according to claim 7, characterized in that: The anti-slip pads (85) are arranged in a ring at equal intervals, and the ends of the anti-slip pads (85) are attached to the outer surface of the connecting line (3).

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