Signal transmission line configuration structure of oxygen sensor

Abstract

The utility model relates to a signal transmission line configuration structure of an oxygen sensor, which is arranged on an exhaust pipe assembly of a vehicle, the exhaust pipe assembly comprises an exhaust front pipe, a catalyst converter and a silencer body, the exhaust front pipe is connected with an engine of the vehicle, and the catalyst converter is connected with the silencer body. The signal transmission line configuration structure of the oxygen sensor comprises a first oxygen sensor, a second oxygen sensor, a second oxygen sensor connector and a second oxygen sensor signal transmission line. The first oxygen sensor is arranged on the exhaust front pipe. The second oxygen sensor is arranged on the silencer body and installed at the rear end of the catalytic converter. The second oxygen sensor connector is arranged on a frame of the vehicle. The second oxygen sensor signal transmission line is electrically connected with the second oxygen sensor and the second oxygen sensor connector. The signal transmission line of the second oxygen sensor extends towards the front of the vehicle and extends towards the upper portion of the vehicle after being converged with a starting wire harness assembly of the engine at a right crankcase of the engine. Therefore, the second oxygen sensor can swing along with the engine, so that the signal is ensured not to be interfered, and the structural body is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to a signal transmission line configuration structure for an oxygen sensor, and more particularly to a signal transmission line configuration structure for an oxygen sensor suitable for a jet motorcycle engine. Background Technology

[0002] In recent years, due to the stringent environmental regulations and energy crisis in various countries, automobile manufacturers have been actively developing low-pollution, low-fuel-consumption, and high-performance engines. In order to cope with increasingly stringent pollution regulations and legal norms, they must detect catalytic degradation.

[0003] However, the oxygen sensor and the control unit must be connected via a signal transmission line. When the exhaust assembly has more than one oxygen sensor, how to configure the signal transmission line will be an important issue. Otherwise, the signal and the main body of the oxygen sensor will be easily affected by external factors (engine vibration), resulting in abnormal signal or structural damage.

[0004] Driven by this, and in the spirit of active invention, the inventor sought a signal transmission line configuration structure for an oxygen sensor that could solve the above problems. After several research and experiments, the inventor finally completed this utility model. Utility Model Content

[0005] The main objective of this invention is to provide a signal transmission line configuration structure for an oxygen sensor. Through the routing of the second oxygen sensor, its connector, and the signal transmission line, it is ensured that the signal and the sensor itself are not affected by external factors (engine vibration) that could lead to signal abnormalities or structural damage. Furthermore, by tilting the second oxygen sensor towards the engine or towards the front of the vehicle, it is ensured that water does not easily accumulate on the sensor itself, and that the signal transmission line is routed smoothly, preventing bending and damage.

[0006] To achieve the above objectives, the present invention provides a signal transmission line configuration structure for an oxygen sensor, which is installed on an exhaust pipe assembly of a vehicle. The exhaust pipe assembly includes an exhaust front pipe, a catalytic converter, and a muffler body. The exhaust front pipe is connected to an engine of the vehicle. The signal transmission line configuration structure for the oxygen sensor includes a first oxygen sensor, a second oxygen sensor, a second oxygen sensor connector, and a second oxygen sensor signal transmission line.

[0007] The first oxygen sensor is mounted on the exhaust front pipe, and the second oxygen sensor is mounted on the muffler body and installed at the rear end of the catalytic converter. The second oxygen sensor connector is mounted on a vehicle frame. The second oxygen sensor signal transmission line electrically connects the second oxygen sensor and the second oxygen sensor connector. Specifically, the second oxygen sensor signal transmission line extends forward of the vehicle and converges with a starter harness assembly at a right crankcase of the engine before extending upwards. This design allows the second oxygen sensor to sway and move with the engine, ensuring uninterrupted signal transmission and preventing structural damage.

[0008] The aforementioned second oxygen sensor signal transmission line can be fixed to a rear wheel bracket of the engine.

[0009] The aforementioned rear wheel bracket may have a fastener, which can be used to fix the signal transmission line of the second oxygen sensor. When the exhaust pipe assembly is disassembled, the fastener can be separated from the signal transmission line of the second oxygen sensor, thus avoiding damage to the second oxygen sensor due to pulling.

[0010] The aforementioned starter harness assembly may include a starter motor power line and a generator coil signal line, used to drive a starter motor to start the engine.

[0011] From the vehicle's forward view, the centerline of the second oxygen sensor can be tilted at a first angle relative to a vertical line on the ground, and the second oxygen sensor can be tilted towards the engine. The first angle can be between 0° and 45° or other angle ranges.

[0012] Viewed from the side of the vehicle, the centerline of the second oxygen sensor can be tilted at a second angle relative to a vertical line on the ground, and the second oxygen sensor can be tilted towards the front of the vehicle. The second angle can be between 0° and 30°.

[0013] The above overview and the following detailed description are illustrative in nature and are intended to further illustrate the scope of the present invention. Other objects and advantages of the present invention will be described in the subsequent detailed embodiments and accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the signal transmission line configuration structure of an oxygen sensor according to a preferred embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram showing the connection between the second oxygen sensor, the second oxygen sensor connector, and the second oxygen sensor signal transmission line, according to a preferred embodiment of the present invention.

[0016] Figure 3This is a front view of the signal transmission line configuration structure of an oxygen sensor according to a preferred embodiment of the present invention.

[0017] Figure 4 This is a side view of the signal transmission line configuration structure of an oxygen sensor according to a preferred embodiment of the present invention.

[0018] Explanation of key component symbols:

[0019] 1. Signal transmission line configuration structure of oxygen sensor

[0020] 11 First oxygen sensor

[0021] 12 Second oxygen sensor

[0022] 13 Second oxygen sensor connector

[0023] 14 Second oxygen sensor signal transmission line

[0024] 15 First oxygen sensor signal transmission line

[0025] 2. Exhaust pipe assembly

[0026] 21 Exhaust front pipe

[0027] 22 Catalyst Converter

[0028] 23 Muffler Body

[0029] 3 vehicles

[0030] 31 Engine

[0031] 311 right crankcase

[0032] 312 Starter harness assembly

[0033] 3121 starter motor power cord

[0034] 3122 Generator Coil Signal Line

[0035] 313 rear wheel bracket

[0036] 3131 Fastener

[0037] 32 frame

[0038] A1 First Angle

[0039] A2 Second Angle

[0040] C1 Second Oxygen Sensor Centerline

[0041] C2 Ground Vertical Line Detailed Implementation

[0042] Please see Figures 1 to 2These are schematic diagrams of the signal transmission line configuration structure of an oxygen sensor according to a preferred embodiment of the present invention, and a connection diagram of a second oxygen sensor, a second oxygen sensor connector, and a second oxygen sensor signal transmission line. The diagram shows a signal transmission line configuration structure 1 for an oxygen sensor, installed on an exhaust pipe assembly 2 of a vehicle 3. The exhaust pipe assembly 2 includes an exhaust front pipe 21, a catalytic converter 22, and a muffler body 23. The exhaust front pipe 21 is connected to an engine 31 of the vehicle 3. The signal transmission line configuration structure 1 for the oxygen sensor includes a first oxygen sensor 11, a first oxygen sensor connector (not shown), a first oxygen sensor signal transmission line 15, a second oxygen sensor 12, a second oxygen sensor connector 13, and a second oxygen sensor signal transmission line 14.

[0043] The first oxygen sensor 11 is mounted on the exhaust front pipe 21, and the first oxygen sensor signal transmission line 15 is electrically connected to the first oxygen sensor 11 and the first oxygen sensor connector. The second oxygen sensor 12 is mounted on the muffler body 23 and installed at the rear end of the catalytic converter 22, and the second oxygen sensor connector 13 is mounted on a frame 32 of the vehicle 3, and the second oxygen sensor signal transmission line 14 is electrically connected to the second oxygen sensor 12 and the second oxygen sensor connector 13. The second oxygen sensor signal transmission line 14 extends forward of the vehicle 3 and converges with a starter harness assembly 312 of the engine 31 at a right crankcase 311 of the engine 31. It then extends upwards towards the vehicle 3 and connects to the second oxygen sensor connector 13, securing it to the frame 32. This wiring configuration of the second oxygen sensor 12, the second oxygen sensor connector 13, and the second oxygen sensor signal transmission line 14 ensures that the signal and the sensor itself are not affected by external factors (engine 31 vibration), preventing signal abnormalities or structural damage. More specifically, through this design, the second oxygen sensor 12 can sway and move with the engine 31, possessing sufficient displacement during the swaying motion of the engine 31 without being pulled or damaged, ensuring signal integrity and preventing structural damage.

[0044] In this embodiment, the second oxygen sensor signal transmission line 14 is fixed to a rear wheel bracket 313 of the engine 31. Specifically, the rear wheel bracket 313 of the engine 31 has a fastener 3131 for fixing the second oxygen sensor signal transmission line 14. However, this invention is not limited to this and other fixing methods can also be used. Therefore, when the exhaust pipe assembly 2 is disassembled, the fastener 3131 can be separated from the second oxygen sensor signal transmission line 14, thus avoiding damage to the second oxygen sensor 12 due to pulling. In addition, the starter harness assembly 312 of this embodiment includes a starter motor power line 3121 and a generator coil signal line 3122 for driving a starter motor (not shown) to start the engine 31.

[0045] Please refer to the following: Figures 3 to 4 These are, respectively, a front view and a side view of the signal transmission line configuration structure of an oxygen sensor according to a preferred embodiment of the present invention. Figure 3 As shown, viewed from the front of vehicle 3, the center line C1 of the second oxygen sensor 12 is inclined at a first angle A1 relative to a vertical line C2 on the ground. The first angle A1 is between 0° and 45°, but this invention is not limited to this. Furthermore, because... Figure 3 Viewed from the front of vehicle 3, engine 31 is located to the right of the second oxygen sensor 12; therefore, the second oxygen sensor 12 is tilted towards engine 31. Figure 4 As shown, viewed from the side of the vehicle, the center line C1 of the second oxygen sensor 12 is inclined at a second angle A2 relative to a vertical line C2 on the ground, wherein the second angle A2 is between 0° and 30°, but the present invention is not limited thereto. Furthermore, due to... Figure 4 Viewed from the left side of vehicle 3, the catalytic converter 22 is located in front of the second oxygen sensor 12, therefore, the second oxygen sensor 12 is tilted towards the front of vehicle 3. This ensures that its body is not prone to water accumulation and that the signal transmission line 14 of the second oxygen sensor is smoothly configured to avoid bending and damage.

[0046] The above embodiments are merely illustrative examples for ease of explanation. The scope of the rights claimed by this utility model should be determined by the scope of protection claimed in the patent application documents, and not limited to the above embodiments.

Claims

1. A signal transmission line configuration structure for an oxygen sensor, disposed on an exhaust pipe assembly of a vehicle, characterized in that, The exhaust pipe assembly includes an exhaust front pipe, a catalyst converter, and a muffler body, the exhaust front pipe is connected to an engine of the vehicle, the signal transmission line configuration structure of the oxygen sensor includes: a first oxygen sensor disposed on the exhaust front pipe; a second oxygen sensor disposed on the muffler body and installed at a rear end of the catalyst converter; a second oxygen sensor connector disposed on a vehicle frame of the vehicle; and a second oxygen sensor signal transmission line electrically connected to the second oxygen sensor and the second oxygen sensor connector; wherein the second oxygen sensor signal transmission line extends forward of the vehicle and merges with a starter harness assembly of the engine at a right crankcase of the engine and then extends upward of the vehicle.

2. The oxygen sensor-equipped signal transmission line configuration structure according to claim 1, characterized by, The second oxygen sensor signal transmission line is fixed at a rear wheel support of the engine.

3. The oxygen sensor-equipped signal transmission line configuration structure according to claim 2, wherein The rear wheel support has a fastener for fixing the second oxygen sensor signal transmission line.

4. The structure of claim 1, wherein the oxygen sensor signal transmission line is formed of a material selected from the group consisting of stainless steel, copper, aluminum, and alloys thereof. The starter harness assembly includes a starter motor power line and a generator coil signal line.

5. The structure of claim 1, wherein the oxygen sensor signal transmission line is formed of a material selected from the group consisting of stainless steel, copper, aluminum, and alloys thereof. From a front view of the vehicle, a second oxygen sensor center line of the second oxygen sensor is inclined at a first angle relative to a ground vertical line, and the second oxygen sensor is inclined toward the engine.

6. The oxygen sensor-equipped signal transmission line configuration structure according to claim 5, wherein The first angle is between 0° and 45°.

7. The structure of claim 1, wherein the oxygen sensor signal transmission line is formed of a material selected from the group consisting of stainless steel, copper, aluminum, and alloys thereof. From a side view of the vehicle, a second oxygen sensor center line of the second oxygen sensor is inclined at a second angle relative to a ground vertical line, and the second oxygen sensor is inclined toward the front of the vehicle.

8. The oxygen sensor signal transmission line configuration structure according to claim 7, wherein The second angle is between 0° and 30°.

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