Wide-angle sensor

Abstract

The invention relates to the field of sensors, and particularly discloses a wide-angle sensor, which comprises a shell, a Fresnel lens and an electronic component arranged in the shell, wherein the electronic component comprises a circuit board, a pyroelectric probe and the like, the pyroelectric probe is fixed on the circuit board, the circuit board is provided with a mounting plane, and the mounting plane is provided with a mounting hole. A reflecting cup is arranged in the center of the mounting plane; and a plurality of pyroelectric probes are distributed at intervals by taking the reflecting cup as the center. Through the cooperation of the lens formed by the conical ring surface and the flat top surface and the reflection cup, when infrared rays enter the reflection space, the infrared rays are filled more easily, then the pyroelectric probe arranged in a plane surrounding mode can receive the infrared rays more easily, activation of the inductor is achieved, and therefore, the wide-angle detection effect of the pyroelectric probe is very good.

Description

technical field [0001] The invention relates to the technical field of sensors, more specifically, it relates to a wide-angle sensor. Background technique [0002] With the development of science and technology, the application of sensors is becoming more and more extensive. For example, sensors are often used in various automation equipment, and automatic sensing equipment also needs to be equipped with sensors. Among the sensors installed in the corridor, since people may appear in all directions of the corridor, there are requirements for the sensing range and angle of the sensor, and then we need to adjust the structure of the existing sensor. [0003] In order to meet the requirement of a wide sensing range, the traditional method is to set multiple sensing probes distributed at circumferential intervals on the circuit board, and each sensing probe cannot be on the same plane, otherwise it can only expand the sensing range of the plane, but cannot increase the wide-angl...

AI Technical Summary

Problems solved by technology

[0004] However, in the above method, since the bracket has mutually angled mounting surfaces, after the probe is installed, its three pins need to pass through the mounting surface and then pass through the contacts on the circuit board to achieve complete installation. When assembling, it is first necessary to accurately bend the 3 pins of each probe, and then manually first pass through the mounting surface, then pass through the contacts of the circuit board, and finally manually solder the joints, which is difficult to operate and usually requires Old employees operate, new employees cannot easily get started

In addition, there will be 9 solder joints in a small area (the circuit board area under the bracket), which is very difficult to solder

In addition, its sensing range will jump when the human body moves, that is, there will often be a detection dead angle

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