Magnetic sensor

Abstract

The utility model relates to a magnetic sensor, which comprises a shell, a PCB (printed circuit board) is arranged in the shell, the shell is cylindrical, a convex surface is formed at one end of the shell, a slot is arranged on the convex surface, a light guide column is inserted in the slot, one end of the light guide column is tightly attached to the shell and surrounds a lamp, and the other end of the light guide column extends out of the shell. The slot opening is formed in the convex surface of the shell, the light guide column is inserted into the slot opening, so that light emitted by the lamp can be effectively gathered and guided by the light guide column, the brightness and uniformity of lamplight are improved, one end of the light guide column is tightly attached to the shell and surrounds the lamp, it is ensured that the lamplight cannot be directly scattered out of the shell, and the service life of the lamp is prolonged. The light guide column is arranged in the shell, light loss and interference are reduced, the light effect is clearer and more striking, the shell is designed to be cylindrical, when the sensor is installed on an air cylinder and other equipment, the sensor can be completely inserted into the shell to be flush with the plane of the equipment, only the light guide column is exposed, and therefore installation convenience and attractiveness are improved.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a magnetic sensor. Background Technology

[0002] In existing technologies, magnetic sensors, as an important detection element, are widely used in various industrial automation, mechanical equipment, and control systems. Traditional magnetic sensors typically consist of a housing containing a built-in PCB circuit board for implementing the sensor's circuitry and signal processing. These sensors have wires leading out through an opening at one end of the housing for connection to external devices, enabling signal transmission and power supply.

[0003] However, traditional magnetic sensors have limitations in light indication. The light is usually directly exposed outside the housing or only blocked through a simple light-transmitting window, lacking an effective protection and guidance mechanism. This results in light scattering, insufficient brightness, or susceptibility to external environmental interference. Furthermore, the light indication effect is often not clear or conspicuous enough, making it difficult to quickly and accurately identify the sensor's working status in complex working environments.

[0004] In addition, the housing shape and structural design of traditional magnetic sensors also have certain limitations. Many sensors have irregular housing shapes, making it difficult to align them with the equipment plane during installation, which affects the convenience and aesthetics of installation. In particular, when it is necessary to install the sensor on equipment such as cylinders, the shape and design of traditional sensors often cannot meet the requirement of being fully inserted and aligned with the equipment plane. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a magnetic sensor with a compact structure, reliable signal transmission, intuitive display of working status, and good electromagnetic shielding.

[0006] To achieve the above objectives, this utility model employs a magnetic sensor comprising a housing containing a PCB circuit board. One end of the housing has an opening onto which a wire is attached. One end of the wire is connected to the PCB circuit board inside the housing, and the other end extends outside the housing for connection to an external device. A reed switch is connected to the PCB circuit board, and a lamp is mounted thereon. The lamp is electrically connected to the PCB circuit board. The housing is cylindrical, with a convex surface at one end. This convex surface is flat, and a slot is formed on the convex surface. A light guide is inserted into the slot, with one end of the light guide tightly fitted to the housing and surrounding the lamp, while the other end extends outside the housing.

[0007] The beneficial effects of the above structure are as follows: by opening a slot on the convex surface of the housing and inserting a light guide column, the light emitted by the lamp can be effectively focused and guided by the light guide column, thereby improving the brightness and uniformity of the light. One end of the light guide column is tightly attached to the housing and surrounds the lamp, ensuring that the light does not directly scatter outside the housing, reducing light loss and interference, and making the lighting effect clearer and more eye-catching. The cylindrical design of the housing not only makes the sensor look simple and beautiful, but also allows the sensor to be fully inserted and flush with the plane of the equipment when installing cylinders and other equipment, with only the light guide column exposed, thereby improving the convenience and aesthetics of installation.

[0008] This utility model is further configured with a through groove on the housing for fixing to other devices. The through groove design allows the sensor to be easily fixed to various devices, greatly improving the sensor's adaptability and flexibility in different application scenarios. Attached Figure Description

[0009] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0010] Figure 2 This is a schematic diagram of the shell structure of an embodiment of the present utility model.

[0011] Figure 3 This is a schematic diagram of the PCB circuit board structure according to an embodiment of the present invention. Detailed Implementation

[0012] like Figures 1-3 As shown, an embodiment of this utility model provides a magnetic sensor, including a housing 1, a PCB circuit board 2 inside the housing 1, an opening 11 at one end of the housing 1, a wire 3 on the opening 11, one end of the wire 3 connected to the PCB circuit board 2 inside the housing 1, and the other end extending out of the housing 1 for connection with external devices, a reed switch 21 connected to the PCB circuit board 2 and a lamp 22 mounted thereon, the lamp 22 being electrically connected to the PCB circuit board 2, the housing 1 being cylindrical, a convex surface 12 formed at the upper end of the housing 1, the convex surface 12 being flat, a slot 121 opened on the convex surface 12, a light guide post 4 inserted into the slot 121, one end of the light guide post 4 being tightly attached to the housing 1 and surrounding the lamp 22, the other end extending out of the housing 1, a through groove 13 also opened on the housing 1, the through groove 13 being used for fixing to other devices.

[0013] Of course, in addition to the above embodiments, this utility model may have other various embodiments. Without departing from the essential technical solution of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, and these changes or modifications are equivalent to the technical solution in this patent. Therefore, these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model, and the utility model creation is in line with the applicant's actual R&D capabilities and resource conditions.

Claims

1. A magnetic sensor, characterized in that: The device includes a housing containing a PCB circuit board. One end of the housing has an opening through which a wire is attached. One end of the wire is connected to the PCB circuit board inside the housing, and the other end extends out of the housing for connection to external devices. A reed switch is connected to the PCB circuit board, and a lamp is mounted thereon. The lamp is electrically connected to the PCB circuit board. The housing is cylindrical, and one end of the housing has a convex surface that is flat. A slot is formed on the convex surface, and a light guide is inserted into the slot. One end of the light guide is tightly fitted to the housing and surrounds the lamp, while the other end extends out of the housing.

2. The magnetic sensor according to claim 1, characterized in that: The housing is also provided with a through groove, which is used to fix it to other equipment.

Images