CN-224231790-U - Extreme environment adaptation type ABS sensor

Abstract

The utility model discloses an extreme environment adaptive ABS sensor, which relates to the technical field of ABS sensors and comprises a base, wherein a high-temperature resistant shell is detachably arranged at the top end of the base, a heat insulation shell is arranged on the outer surface of the high-temperature resistant shell, a low-temperature resistant shell is detachably arranged at the top end of the base on the outer surface of the heat insulation shell, four damping rods are arranged in the high-temperature resistant shell, springs are arranged on the outer surfaces of the four damping rods, screw rods are arranged at the bottom ends of the four damping rods, and sensing element connecting pieces are commonly connected to the outer surfaces of the four screw rods. According to the utility model, through the arrangement of the three-layer composite structure and material complementation and functional layering, softening at high temperature is avoided, brittle fracture at low temperature is avoided, the weight of the heat insulation material is low, frosting or icing at the front end of the low-temperature-resistant shell in extremely cold environments is avoided, signal distortion and misjudgment or even failure of a braking system are caused, the magnet fixing support is prevented from being deformed due to vibration, magnet displacement is avoided, and magnetic field coupling efficiency is influenced.

Inventors

• XU YI
• CHEN CHUN

Assignees

• 杭州临安冠峰传感器有限公司

Dates

Publication Date

20260512

Application Date

20250626

Claims (6)

1. 1. The extreme environment-adaptive ABS sensor comprises a base (1) and is characterized in that a high-temperature resistant shell (7) is detachably arranged at the top end of the base (1), a heat insulating shell (8) is arranged on the outer surface of the high-temperature resistant shell (7), a low-temperature resistant shell (3) is detachably arranged at the top end of the base (1) on the outer surface of the heat insulating shell (8), four damping rods (11) are arranged in the heat insulating shell (7), springs (12) are arranged on the outer surface of each damping rod (11), screws (10) are arranged at the bottom end of each damping rod (11), sensing element connectors (5) are connected to the outer surfaces of the four screws (10) together, sensing ends (6) are arranged at the top ends of the sensing element connectors (5), and heating elements (13) are arranged in the heat insulating shell (8).
2. 2. The extreme environment-adaptive ABS sensor of claim 1, wherein the bottom end of the low temperature resistant shell (3) and the corresponding position of the top end of the base (1) are respectively provided with an outer shell mounting hole (101) in a penetrating manner, and the bottom end of the high temperature resistant shell (7) and the corresponding position of the top end of the base (1) are respectively provided with an inner shell mounting hole (102) in a penetrating manner.
3. 3. The extreme environment-adaptive ABS sensor according to claim 1, wherein a plurality of holes (9) are formed in the top end of the heat insulation shell (8) above the heating element (13).
4. 4. The extreme environment-adaptive ABS sensor according to claim 1, wherein four through holes (4) are annularly arranged at the top end of the sensing element connecting piece (5).
5. 5. The extreme environment-adaptive ABS sensor according to claim 1, wherein a connecting hole (701) is formed through the top end of the high-temperature resistant shell (7).
6. 6. The extreme environment-adaptive ABS sensor according to claim 1, wherein a wire hole (103) is formed in the middle of the top end of the base (1), and a mounting frame (2) is arranged on one side of the base (1).

Description

Extreme environment adaptation type ABS sensor Technical Field The utility model relates to the technical field of ABS sensors, in particular to an extreme environment adaptive ABS sensor. Background An anti-lock braking system (ABS) is one of the core components of modern automobile safety, and its core sensor (wheel speed sensor) provides data for ECU to regulate braking force by monitoring wheel rotation speed in real time, thus preventing wheel locking. However, the existing ABS sensor housing and mounting structure are simpler, and under extreme environments (such as extremely cold/hot, dust and bumpy road), the conventional ABS sensor is prone to performance attenuation or even failure, resulting in braking safety risks, and the front end of the sensor is at risk of frosting and icing, which may lead to signal distortion and misjudgment of the braking system. Disclosure of utility model The present utility model is directed to an ABS sensor adapted to an extreme environment to solve the above-mentioned problems. In order to achieve the purpose, the utility model provides the technical scheme that the extreme environment-adaptive ABS sensor comprises a base, wherein a high-temperature-resistant shell is detachably arranged at the top end of the base, a heat insulation shell is arranged on the outer surface of the high-temperature-resistant shell, a low-temperature-resistant shell is detachably arranged at the top end of the base on the outer surface of the heat insulation shell, four damping rods are arranged in the high-temperature-resistant shell, springs are arranged on the outer surfaces of the four damping rods, screw rods are arranged at the bottom ends of the four damping rods, sensing element connecting pieces are connected to the outer surfaces of the four screw rods together, a sensing end is arranged at the top end of the sensing element connecting piece, and a heating element is arranged in the heat insulation shell. Preferably, the bottom of low temperature resistant shell and the corresponding position department in base top all run through and have seted up the shell mounting hole, the bottom of high temperature resistant shell and the corresponding position department in base top all run through and have seted up the inner shell mounting hole, and low temperature resistant shell and high temperature resistant shell are installed on the base top, and low temperature resistant shell protects outside high temperature resistant shell, plays the guard effect to the sensing end of inside. Preferably, a plurality of holes are formed in the top end of the heat insulation shell above the heating element, when the heating element is electrified to generate heat, the heat is conducted upwards, the front end of the low-temperature-resistant shell is likely to frost or freeze in a low-temperature environment, the heat generated by the heating element enables the temperature of the front end of the low-temperature shell to rise, frost or ice cubes are melted, and signal distortion, misjudgment and even failure of a braking system are avoided. Preferably, four through holes are annularly distributed at the top end of the sensing element connecting piece, the through holes are matched with the screw, the bottom of the screw penetrates through the through holes during assembly, and then nuts are installed at the extending ends of the screw for fixing, so that the sensing element connecting piece is fixed in the high-temperature-resistant shell. Preferably, the top end of the high temperature resistant shell is provided with a connecting hole in a penetrating way, the connecting hole is overlapped with the jack of the heating element, the transmission line can be connected with the heating element through the connecting hole, the transmission line is connected with the automobile control assembly, and the transmission line is used for transmitting power under a low temperature environment, so that the heating element generates heat. Preferably, the top intermediate position department of base is provided with the line hole, one side of base is provided with the mounting bracket, and line hole department can insert the transmission line, makes the top of transmission line be connected with sensing end and heating element respectively, is convenient for carry out data and electric power transmission. Compared with the prior art, the utility model has the beneficial effects that: 1. This extreme environment adaptation formula ABS sensor uses through low temperature resistant shell, heat-proof shell and high temperature resistant shell cooperation, and low temperature resistant shell is located outside, and the sensing end is installed inside high temperature resistant shell, is provided with the heat-proof shell between low temperature resistant shell and the high temperature resistant shell, and three-layer composite structure through material complementation and function layering, can not soften when real