Exhaust temperature sensor based on SENT protocol

Abstract

The utility model provides an exhaust temperature sensor based on the SENT protocol, which comprises a protective shell corresponding to an automobile exhaust pipe, an exhaust temperature sensor body is rotatably matched in the protective shell, a limiting block is arranged on the protective shell, a plurality of pressing blocks are arranged on the limiting block, and the limiting block and the pressing blocks correspond to the exhaust temperature sensor body. A fixing structure is arranged between the limiting block and the pressing block, a shifting structure is arranged on the pressing block, and a positioning structure is arranged between the shifting structure and the exhaust temperature sensor body. According to the utility model, the exhaust temperature sensor body is rotatably installed in the protective shell, the exhaust temperature sensor body can be rotated so as to prevent the transmission line from being bent, the shifting structure is installed on the pressing block, the positioning structure is installed between the shifting structure and the exhaust temperature sensor body, and the position of the exhaust temperature sensor body can be fixed through the positioning structure. Therefore, the exhaust temperature sensor body is prevented from rotating during working, and the monitoring effect of the exhaust temperature sensor body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust temperature sensors, in particular to an exhaust temperature sensor of the SENT protocol. Background Art

[0002] The SENT data protocol is an efficient and secure data transmission protocol designed specifically for the automotive and transportation industries. While ensuring high communication security, it also pays great attention to cost control. Its main goal is to replace the traditional transmission method of analog signals between sensors and microcontrollers, and provide more accurate and reliable communication performance through single-sided half-byte transmission technology. While meeting stringent safety requirements, the SENT protocol effectively improves system efficiency and cost-effectiveness, and is an indispensable part of modern automotive electronic systems. Most existing exhaust temperature sensors support the SENT protocol. Exhaust temperature sensors are installed on the exhaust pipes of gasoline and diesel engines to measure the temperature of the exhaust. Most existing exhaust temperature sensors are directly fixed to the exhaust pipe by threads, and are prone to bending during use. When the transmission line is bent for a long time, the bending degree is large, and the bending frequency is high, the transmission line often breaks, causing damage to the exhaust temperature sensor, making the exhaust temperature sensor unusable.

[0003] To this end, the utility model provides an exhaust temperature sensor based on the SENT protocol. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an exhaust temperature sensor based on the SENT protocol to solve the problems raised in the above-mentioned background technology. The present invention can rotate the exhaust temperature sensor body to prevent the transmission line from bending; the position of the exhaust temperature sensor body can be fixed by a positioning structure to prevent the exhaust temperature sensor body from rotating during operation, thereby ensuring the monitoring effect of the exhaust temperature sensor body.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a SENT protocol exhaust temperature sensor, comprising a protective shell corresponding to the exhaust pipe of a car, the exhaust temperature sensor body being rotatably fitted inside the protective shell, a limit block being installed on the protective shell, a plurality of pressure blocks being installed on the limit block, the limit block and the pressure block corresponding to the exhaust temperature sensor body, a fixing structure being installed between the limit block and the pressure block, a toggle structure being installed on the pressure block, and a positioning structure being installed between the toggle structure and the exhaust temperature sensor body.

[0006] Furthermore, the protective shell includes a filtering end and a mounting end, a peripheral side of the mounting end is provided with a thread, and a peripheral side of the filtering end is provided with a plurality of filter holes.

[0007] Furthermore, the protective shell is fixedly connected to the limiting block, and grooves are provided in the pressing block and the limiting block, and the grooves correspond to the exhaust temperature sensor body.

[0008] Furthermore, a sealing gasket is installed in the groove, and a rotating ring is rotatably matched with the circumference of the exhaust temperature sensor body, and the rotating ring is located in the groove.

[0009] Furthermore, a through groove is provided in the protective shell, the through groove is rotatably connected to the exhaust temperature sensor body, and a sealing ring is installed between the through groove and the exhaust temperature sensor body.

[0010] Furthermore, the fixing structure includes a mounting block fixed to the pressing block and the limiting block, and a fixing bolt is installed between two upper and lower adjacent mounting blocks.

[0011] Furthermore, the toggle structure includes a plurality of toggle pieces, which are made of elastic material and are fixedly connected to the pressing blocks respectively.

[0012] Furthermore, the positioning structure includes a card block, which is fixedly connected to the toggle piece. The card block is made of elastic material. A plurality of card slots are provided on the peripheral side of the exhaust temperature sensor body, and the card slots correspond to the card block.

[0013] Beneficial effects of the present invention: The present invention provides an exhaust temperature sensor of the SENT protocol, comprising a protective shell; an exhaust temperature sensor body; a pressure block; a toggle structure; and a positioning structure.

[0014] The exhaust temperature sensor body is rotatably installed in the protective shell, and the exhaust temperature sensor body can be rotated to prevent the transmission line from bending. A toggle structure is installed on the pressure block, and a positioning structure is installed between the toggle structure and the exhaust temperature sensor body. The position of the exhaust temperature sensor body can be fixed by the positioning structure, thereby preventing the exhaust temperature sensor body from rotating during operation and ensuring the monitoring effect of the exhaust temperature sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall assembly structure of a SENT protocol exhaust temperature sensor of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall assembly cross-sectional structure of an exhaust temperature sensor using the SENT protocol according to the present invention;

[0017] Figure 3 for Figure 2 Schematic diagram at A in the middle;

[0018] Figure 4 for Figure 3 Schematic diagram at point B in the middle;

[0019] In the figure: 1. Protective shell; 2. Filter end; 3. Mounting end; 4. Limit block; 5. Mounting block; 6. Pressing block; 7. Through groove; 8. Sealing ring; 9. Sealing gasket; 10. Groove; 11. Fixing bolt; 12. Rotating ring; 13. Exhaust temperature sensor body; 14. Toggle piece; 15. Slot; 16. Block. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a SENT protocol exhaust temperature sensor, comprising a protective shell 1 corresponding to the exhaust pipe of a car, an exhaust temperature sensor body 13 rotatably fitted in the protective shell 1, a limit block 4 is installed on the protective shell 1, a plurality of pressure blocks 6 are installed on the limit block 4, the limit block 4 and the pressure block 6 correspond to the exhaust temperature sensor body 13, a fixing structure is installed between the limit block 4 and the pressure block 6, a toggle structure is installed on the pressure block 6, and a positioning structure is installed between the toggle structure and the exhaust temperature sensor body 13.

[0022] In this embodiment, the protective shell 1 includes a filter end 2 and a mounting end 3 . The mounting end 3 is provided with threads on its circumference, and the filter end 2 is provided with a plurality of filter holes on its circumference.

[0023] Specifically, the protective shell 1 can be fixed to the exhaust pipe thread through the installation end 3, and some small particles in the gas can be filtered through the filter end 2 to prevent the small particles from sticking to the exhaust temperature sensor body 13, thereby ensuring the temperature measurement effect of the exhaust temperature sensor body 13.

[0024] The output signal of the exhaust temperature sensor body 13 is output using the SENT protocol, and its output method is the same as the output method of a temperature and pressure sensor in a SENT output form disclosed in the patent publication number CN220542143U.

[0025] The protective shell 1 is fixedly connected to the limit block 4. A groove 10 is provided in the pressure block 6 and the limit block 4. The groove 10 corresponds to the exhaust temperature sensor body 13. A sealing gasket 9 is installed in the groove 10. The circumferential side of the exhaust temperature sensor body 13 is rotated with a rotating ring 12. The rotating ring 12 is located in the groove 10. A through groove 7 is provided in the protective shell 1. The through groove 7 is rotatably connected to the exhaust temperature sensor body 13. A sealing ring 8 is installed between the through groove 7 and the exhaust temperature sensor body 13.

[0026] Specifically, when the protective shell 1 needs to be installed, the sealing gasket 9 in the groove 10 and the sealing ring 8 in the through groove 7 can achieve a good sealing effect, thereby preventing air leakage. During installation, the exhaust temperature sensor body 13 can be rotated by the rotating ring 12 to adjust the angle of the exhaust temperature sensor body 13, thereby preventing the exhaust temperature sensor body 13 from bending.

[0027] Specifically, when the device needs to be installed, the mounting end 3 is fixed to the exhaust pipe through a thread, and then the pressure block 6 is pressed downward to fix it, so that the exhaust temperature sensor body 13 is clamped between the pressure block 6 and the limit block 4, and then the pressure block 6 and the limit block 4 are fixed by the fixing bolt 11 to achieve the installation of the exhaust temperature sensor body 13.

[0028] The fixing structure includes a mounting block 5 fixed to the pressure block 6 and the limit block 4, and a fixing bolt 11 is installed between the two adjacent mounting blocks 5. The toggle structure includes a plurality of toggle pieces 14, which are made of elastic material. The plurality of toggle pieces 14 are respectively fixedly connected to the pressure block 6. The positioning structure includes a clamping block 16, which is fixedly connected to the toggle piece 14, and the clamping block 16 is made of elastic material. A plurality of clamping grooves 15 are opened on the peripheral side of the exhaust temperature sensor body 13, and the clamping grooves 15 correspond to the clamping blocks 16.

[0029] Specifically, when the exhaust temperature sensor body 13 needs to be fixed, the block 16 is inserted into the slot 15 to limit and fix the exhaust temperature sensor body 13; the toggle piece 14 can be toggled so that the toggle piece 14 drives the block 16 to move, thereby causing the slot 15 and the block 16 to lose the engagement relationship, and the exhaust temperature sensor body 13 can be rotated at will.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A SENT protocol exhaust temperature sensor, comprising a protective shell (1) corresponding to an automobile exhaust pipe, characterized in that: The protective shell (1) is rotatably fitted with an exhaust temperature sensor body (13); a limit block (4) is mounted on the protective shell (1); a plurality of pressure blocks (6) are mounted on the limit block (4); the limit block (4) and the pressure blocks (6) correspond to the exhaust temperature sensor body (13); a fixing structure is mounted between the limit block (4) and the pressure blocks (6); a toggle structure is mounted on the pressure blocks (6); and a positioning structure is mounted between the toggle structure and the exhaust temperature sensor body (13).

2. The exhaust temperature sensor of the SENT protocol according to claim 1, characterized in that: The protective shell (1) comprises a filtering end (2) and a mounting end (3); a thread is provided on the peripheral side of the mounting end (3); and a plurality of filter holes are provided on the peripheral side of the filtering end (2).

3. The exhaust temperature sensor of the SENT protocol according to claim 1, characterized in that: The protective shell (1) is fixedly connected to the limiting block (4); a groove (10) is provided in each of the pressing block (6) and the limiting block (4); and the groove (10) corresponds to the exhaust temperature sensor body (13).

4. The exhaust temperature sensor of the SENT protocol according to claim 3, characterized in that: A sealing gasket (9) is installed in the groove (10), and a rotating ring (12) is rotatably matched on the circumference of the exhaust temperature sensor body (13), and the rotating ring (12) is located in the groove (10).

5. The exhaust temperature sensor of the SENT protocol according to claim 1, characterized in that: A through groove (7) is provided in the protective shell (1), the through groove (7) is rotatably connected to the exhaust temperature sensor body (13), and a sealing ring (8) is installed between the through groove (7) and the exhaust temperature sensor body (13).

6. The exhaust temperature sensor of the SENT protocol according to claim 1, characterized in that: The fixing structure comprises a mounting block (5) fixed to a pressing block (6) and a limiting block (4), and a fixing bolt (11) is installed between two upper and lower adjacent mounting blocks (5).

7. The exhaust temperature sensor of the SENT protocol according to claim 1, characterized in that: The toggle structure comprises a plurality of toggle pieces (14), the toggle pieces (14) are made of elastic material, and the plurality of toggle pieces (14) are respectively fixedly connected to the pressing blocks (6).

8. The exhaust temperature sensor of the SENT protocol according to claim 7, characterized in that: The positioning structure comprises a card block (16), the card block (16) is fixedly connected to the toggle piece (14), the card block (16) is made of elastic material, and a plurality of card slots (15) are provided on the peripheral side of the exhaust temperature sensor body (13), and the card slots (15) correspond to the card block (16).

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