A motor vehicle exhaust pipe temperature detection device

Abstract

The utility model provides a kind of motor vehicle exhaust cylinder temperature detection device, belong to automobile fault diagnosis field, including installation base, the sidewall of installation base is provided with temperature detection mechanism for temperature detection, the top of installation base is provided with data processing assembly for data collection.The utility model is provided with temperature detection mechanism, when using, through the temperature detection mechanism of being set, when using, spherical hinge base connects thermocouple temperature sensor and thermocouple probe, allows thermocouple probe to be flexibly adjusted angle in certain range, can be adapted to different exhaust cylinder inner wall, ensure that detection end is always aligned high temperature core area, protective sleeve is designed as telescopic, can be inserted depth according to exhaust cylinder length adjustment, solve the problem that traditional fixed length sleeve is too short to detect core area, too long to be damaged by air flow impact, miniature vibration motor can generate high-frequency microvibration periodically, and the carbon deposition adhered to the detection end of thermocouple probe is shaken off.

Description

Technical Field

[0001] This utility model relates to the field of automotive fault diagnosis, and more specifically, to a motor vehicle exhaust pipe temperature detection device. Background Technology

[0002] During vehicle operation, exhaust pipe temperature is an important indicator reflecting the engine's operating status. Excessively high exhaust temperatures may indicate incomplete combustion, catalytic converter malfunction, or exhaust system blockage. If ignored for a long period, this could lead to engine damage, vehicle fires, and other safety hazards. However, existing exhaust pipe temperature detection devices still have the following shortcomings:

[0003] Traditional exhaust stack temperature detection devices use a fixed probe angle, making it difficult to adapt to exhaust stacks with different curvatures and lengths. This can easily lead to data distortion due to the detection point deviating from the high-temperature core area. Furthermore, over long-term use, carbon buildup on the probe surface can affect the accuracy of temperature detection. Therefore, a new exhaust stack temperature detection device for motor vehicles is proposed. Utility Model Content

[0004] The purpose of this invention is to address the problems of existing traditional exhaust pipe temperature detection devices, such as fixed probe angles that are difficult to adapt to exhaust pipes with different curvatures and lengths, data distortion due to the detection point deviating from the high-temperature core area, and carbon buildup on the probe surface during long-term use, which affects the accuracy of temperature detection. This invention provides a motor vehicle exhaust pipe temperature detection device to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] The present invention is as follows: a motor vehicle exhaust pipe temperature detection device, including a mounting base, a temperature detection mechanism for temperature detection is provided on the side wall of the mounting base, and a data processing component for data collection is provided on the top of the mounting base;

[0007] The temperature detection mechanism includes a thermocouple temperature sensor mounted on the side wall of the mounting base. A spherical hinge is fixedly connected to the side wall of the thermocouple temperature sensor. A thermocouple probe is installed inside the spherical hinge. A protective sleeve is provided on the side wall of the spherical hinge. The protective sleeve is a telescopic sleeve. The cross-sectional area of ​​the front end of the protective sleeve is smaller than that of the rear end. The detection end of the thermocouple probe penetrates through the side wall of the protective sleeve. A miniature vibration motor is provided at the end of the thermocouple probe near the thermocouple temperature sensor.

[0008] As a preferred technical solution of this utility model, the data processing component includes a data storage module disposed on the top of the mounting base, the data storage module being electrically connected to a thermocouple temperature sensor, a wireless communication module being disposed on the top of the mounting base, and a protective shell being disposed on the top of the mounting base.

[0009] As a preferred technical solution of this utility model, the protective sleeve is made of high-temperature resistant alloy material, and the length of the protective sleeve is longer than the thermocouple probe of the thermocouple temperature sensor.

[0010] As a preferred technical solution of this utility model, a lithium battery is provided inside the mounting base, and the lithium battery is electrically connected to the thermocouple temperature sensor, the data storage module and the wireless communication module.

[0011] As a preferred technical solution of this utility model, a heat insulation barrier is provided on the outside of the thermocouple temperature sensor, and the heat insulation barrier is made of aerogel felt.

[0012] As a preferred technical solution of this utility model, an arc-shaped clamp is fixedly connected to the bottom of the mounting base, and a high-temperature silicone pad is provided on the inner wall of the arc-shaped clamp.

[0013] As a preferred technical solution of this utility model, a buzzer alarm is installed on the side wall of the mounting base, and the buzzer alarm is electrically connected to the thermocouple temperature sensor.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. Through the set temperature detection mechanism, during use, the spherical hinge connects the thermocouple temperature sensor and the thermocouple probe, allowing the thermocouple probe to flexibly adjust the angle within a certain range. It can adapt to the inner wall of the exhaust pipe with different curvatures, ensuring that the detection end is always aligned with the high-temperature core area, avoiding detection errors caused by angle deviation. The protective sleeve is designed to be telescopic, and the insertion depth can be adjusted according to the length of the exhaust pipe. This solves the problems of traditional fixed-length sleeves being too short to detect the core area and too long to be easily damaged by airflow impact. The micro vibration motor can periodically generate high-frequency micro-vibration to shake off the carbon deposits attached to the detection end of the thermocouple probe.

[0016] 2. Through the set data processing components, the data storage module can retain temperature data during use, and the wireless communication module can realize remote data transmission, making it convenient for users to view historical and real-time data at any time, providing a basis for fault diagnosis. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the motor vehicle exhaust pipe temperature detection device provided by this utility model;

[0018] Figure 2 One of the front view structural schematic diagrams of the motor vehicle exhaust pipe temperature detection device provided by this utility model;

[0019] Figure 3 The motor vehicle exhaust pipe temperature detection device provided by this utility model Figure 2 Planar sectional view at point AA;

[0020] Figure 4 The motor vehicle exhaust pipe temperature detection device provided by this utility model Figure 2 Plan view at point BB;

[0021] Figure 5 The second front view schematic diagram of the motor vehicle exhaust pipe temperature detection device provided by this utility model.

[0022] The diagram shows: 1. Mounting base; 2. Temperature detection mechanism; 3. Data processing component; 4. Lithium battery; 5. Thermal barrier; 6. Arc-shaped clamp; 7. High-temperature silicone pad; 8. Buzzer alarm; 201. Thermocouple temperature sensor; 202. Spherical hinge; 203. Thermocouple probe; 204. Protective sleeve; 205. Miniature vibration motor; 301. Data storage module; 302. Wireless communication module; 303. Protective shell. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0024] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] like Figure 1As shown, this embodiment proposes a motor vehicle exhaust pipe temperature detection device, including a mounting base 1, a temperature detection mechanism 2 for temperature detection is provided on the side wall of the mounting base 1, and a data processing component 3 for data collection is provided on the top of the mounting base 1.

[0028] like Figure 3 As shown, the temperature detection mechanism 2 includes a thermocouple temperature sensor 201 mounted on the side wall of the mounting base 1. This sensor can adapt to high-temperature environments of 300-800℃ in the exhaust pipe, solving the problem of ordinary temperature sensors easily failing at high temperatures. A spherical hinge seat 202 is fixedly connected to the side wall of the thermocouple temperature sensor 201. A thermocouple probe 203 is installed inside the spherical hinge seat 202, allowing the thermocouple probe 203 to rotate freely within its range. This enables flexible adjustment of the detection angle, adapting to the bending angle or shape of exhaust pipes in different vehicle models, ensuring that the probe can accurately align with the exhaust gas. In the core flow area, the thermocouple temperature sensor 201 is externally protected by a protective sleeve 204. The protective sleeve 204 is a telescopic sleeve, with the cross-sectional area of ​​the front end of the protective sleeve 204 being smaller than that of the rear end. The telescopic design adapts to exhaust pipes of different lengths, improving the compatibility of the device. The detection end of the thermocouple probe 203 penetrates through the side wall of the protective sleeve 204. A miniature vibration motor 205 is provided at the end of the thermocouple probe 203 near the thermocouple temperature sensor 201, solving the problem of probe dust accumulation leading to decreased measurement accuracy in traditional temperature detection devices, eliminating the need for frequent manual disassembly and cleaning. In use, the temperature of the exhaust stack is sensed by the thermocouple probe 203, and the temperature signal is converted into an electrical signal. The spherical hinge 202 is installed on the side wall of the thermocouple temperature sensor 201, and the thermocouple probe 203 is connected inside through a spherical contact structure, allowing the probe to rotate freely within a range of ±30°, so as to achieve flexible adjustment of the detection angle. The thermocouple probe 203, as the temperature sensing end of the thermocouple, is directly inserted into or close to the high-temperature area inside the exhaust stack, and the temperature signal is transmitted to the thermocouple temperature sensor 201 through a metal conductor. The telescopic protective sleeve 204 adopts a segmented telescopic structure, which can adjust the extension length according to the length of the exhaust stack, reduce the obstruction of the exhaust airflow, and enhance the protection of the probe and sensor. The miniature vibration motor 205 is triggered to start vibration according to a preset cycle, and the carbon deposits and dust attached to the surface of the thermocouple probe 203 are shaken off through mechanical vibration.

[0029] As shown in Figure 3 and Figure 4As shown, the data processing component 3 includes a data storage module 301 located on the top of the mounting base 1. This module stores temperature data for later review and analysis, providing historical data for vehicle fault diagnosis. The data storage module 301 is electrically connected to the thermocouple temperature sensor 201. A wireless communication module 302 is located on the top of the mounting base 1, enabling real-time remote data transmission. This allows users to monitor the exhaust pipe temperature without close inspection of the device, improving ease of use. A protective shell 303 is located on the top of the mounting base 1, extending the service life of the data processing component 3 and ensuring stable operation in complex external environments of motor vehicles. In use, the data storage module 301 is electrically connected to the thermocouple temperature sensor 201, receiving and storing the temperature data transmitted by the thermocouple temperature sensor 201. It receives electrical signals through a circuit and converts them into a storable data format. The wireless communication module 302 transmits the stored temperature data wirelessly to an external receiving device via radio waves.

[0030] like Figure 3 As shown, the protective sleeve 204 is made of high-temperature resistant alloy material, and its length is longer than the thermocouple probe 203 of the thermocouple temperature sensor 201. In use, the protective sleeve 204, made of high-temperature resistant alloy material and longer than the thermocouple probe 203 of the thermocouple temperature sensor 201, completely encloses the thermocouple probe 203. The high-temperature resistant alloy material can withstand the high temperature of the exhaust stack, preventing the thermocouple probe 203 from being damaged by high temperatures.

[0031] like Figure 4 As shown, a lithium battery 4 is installed inside the mounting base 1. The lithium battery 4 is electrically connected to the thermocouple temperature sensor 201, the data storage module 301, and the wireless communication module 302. In use, the lithium battery 4 provides DC power to the thermocouple temperature sensor 201, the data storage module 301, and the wireless communication module 302 to ensure their normal operation.

[0032] like Figure 1 As shown, a heat insulation barrier 5 is provided on the outside of the thermocouple temperature sensor 201. The heat insulation barrier 5 is made of aerogel felt. In use, the heat insulation barrier 5 can effectively block the heat from the exhaust pipe from being transferred to other parts of the thermocouple temperature sensor 201 and the mounting base 1.

[0033] like Figure 1 As shown, an arc-shaped clamp 6 is fixedly connected to the bottom of the mounting base 1, and a high-temperature silicone pad 7 is provided on the inner wall of the arc-shaped clamp 6. In use, the arc-shaped clamp 6 is fixedly connected to the bottom of the mounting base 1, and its arc-shaped structure matches the shape of the exhaust pipe. The mounting base 1 can be tightly fixed to the exhaust pipe by the clamp. The high-temperature silicone pad 7 is provided on the inner wall of the clamp to increase the friction between the clamp and the exhaust pipe.

[0034] like Figure 5 As shown, a buzzer alarm 8 is installed on the side wall of the mounting base 1, and the buzzer alarm 8 is electrically connected to the thermocouple temperature sensor 201. In use, the buzzer alarm 8 is electrically connected to the thermocouple temperature sensor 201. When the thermocouple temperature sensor 201 detects that the exhaust stack temperature exceeds a preset threshold, the thermocouple temperature sensor 201 sends a signal to the buzzer alarm 8, and the buzzer alarm 8 sounds an alarm.

[0035] Specifically, in use, the motor vehicle exhaust pipe temperature detection device is as follows: the arc-shaped clamp 6 is fixedly connected to the bottom of the mounting base 1, and its arc-shaped structure matches the shape of the exhaust pipe. The mounting base 1 can be tightly fixed to the exhaust pipe through the clamp. The high-temperature silicone pad 7 is placed on the inner wall of the clamp to increase the friction between the clamp and the exhaust pipe (e.g., Figure 1 As shown), the temperature of the exhaust stack is sensed by the thermocouple probe 203, and the temperature signal is converted into an electrical signal. The spherical hinge 202 is installed on the side wall of the thermocouple temperature sensor 201, and the thermocouple probe 203 is connected internally through a spherical contact structure, allowing the probe to rotate freely within a range of ±30°, realizing flexible adjustment of the detection angle. The thermocouple probe 203, as the temperature sensing end of the thermocouple, is directly inserted into or close to the high-temperature area inside the exhaust stack, and transmits the temperature signal to the thermocouple temperature sensor 201 through a metal conductor. The telescopic protective sleeve 204 adopts a segmented telescopic structure, and the extension length can be adjusted according to the length of the exhaust stack, reducing the obstruction to the exhaust airflow and enhancing the protection of the probe and sensor. The miniature vibration motor 205 is triggered to start vibration according to a preset cycle, and the carbon deposits and dust attached to the surface of the thermocouple probe 203 are shaken off through mechanical vibration (e.g., Figure 3 As shown in Figure 3), the protective sleeve 204 is made of high-temperature resistant alloy material and is longer than the thermocouple probe 203 of the thermocouple temperature sensor 201, completely enclosing the thermocouple probe 203. The high-temperature resistant alloy material can withstand the high temperature of the exhaust stack, preventing the thermocouple probe 203 from being damaged by high temperature (as shown in Figure 3). The data storage module 301 is electrically connected to the thermocouple temperature sensor 201, receiving and storing the temperature data transmitted by the thermocouple temperature sensor 201. It receives electrical signals through the circuit and converts them into a storable data format. The wireless communication module 302 is responsible for sending the stored temperature data to an external receiving device in the form of wireless signals, transmitting data through radio waves (e.g., Figure 3 and Figure 4 As shown in Figure 5, the buzzer alarm 8 is electrically connected to the thermocouple temperature sensor 201. When the thermocouple temperature sensor 201 detects that the exhaust pipe temperature exceeds the preset threshold, the thermocouple temperature sensor 201 sends a signal to the buzzer alarm 8, and the buzzer alarm 8 emits an audible alarm (as shown in Figure 5).

[0036] All technical features in this embodiment can be freely combined according to actual needs.

[0037] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A motor vehicle exhaust pipe temperature detection device, comprising a mounting base (1), characterized in that, A temperature detection mechanism (2) for temperature detection is provided on the side wall of the mounting base (1), and a data processing component (3) for data collection is provided on the top of the mounting base (1). The temperature detection mechanism (2) includes a thermocouple temperature sensor (201) disposed on the side wall of the mounting base (1). A spherical hinge (202) is fixedly connected to the side wall of the thermocouple temperature sensor (201). A thermocouple probe (203) is installed inside the spherical hinge (202). A protective sleeve (204) is disposed on the side wall of the spherical hinge (202). The protective sleeve (204) is a telescopic sleeve. The cross-sectional area of ​​the front end of the protective sleeve (204) is smaller than that of the rear end. The detection end of the thermocouple probe (203) penetrates the side wall of the protective sleeve (204). A miniature vibration motor (205) is disposed at the end of the thermocouple probe (203) near the thermocouple temperature sensor (201).

2. The motor vehicle exhaust pipe temperature detection device according to claim 1, characterized in that, The data processing component (3) includes a data storage module (301) disposed on the top of the mounting base (1), the data storage module (301) being electrically connected to a thermocouple temperature sensor (201), a wireless communication module (302) being disposed on the top of the mounting base (1), and a protective shell (303) being disposed on the top of the mounting base (1).

3. The motor vehicle exhaust pipe temperature detection device according to claim 1, characterized in that, The protective sleeve (204) is made of high-temperature resistant alloy material, and the length of the protective sleeve (204) is longer than the thermocouple probe (203) of the thermocouple temperature sensor (201).

4. The motor vehicle exhaust pipe temperature detection device according to claim 1, characterized in that, The mounting base (1) is equipped with a lithium battery (4), which is electrically connected to a thermocouple temperature sensor (201), a data storage module (301), and a wireless communication module (302).

5. The motor vehicle exhaust pipe temperature detection device according to claim 1, characterized in that, The thermocouple temperature sensor (201) is provided with a heat insulation barrier (5) on its exterior, and the heat insulation barrier (5) is made of aerogel felt.

6. The motor vehicle exhaust pipe temperature detection device according to claim 1, characterized in that, The bottom of the mounting base (1) is fixedly connected to an arc-shaped clamp (6), and a high-temperature silicone pad (7) is provided on the inner wall of the arc-shaped clamp (6).

7. The motor vehicle exhaust pipe temperature detection device according to claim 1, characterized in that, A buzzer alarm (8) is installed on the side wall of the mounting base (1), and the buzzer alarm (8) is electrically connected to the thermocouple temperature sensor (201).

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