Hall sensor assembly

Abstract

The utility model discloses a Hall sensor assembly, and belongs to the technical field of position detection. The technical problem that a traditional sensor such as a proximity switch, a photoelectric switch and a Hall switch is unstable in detection is solved. According to the technical scheme, the sensor comprises a sensor carrying circuit board, a full-polarity sensor, an insulation shell and an N35 magnet, the insulation shell packages the sensor carrying circuit board and the full-polarity sensor, the sensor carrying circuit board comprises a protection circuit, the protection circuit is electrically connected with the full-polarity sensor, and the N35 magnet is electrically connected with the protection circuit. When the N35 magnet reciprocates, swings and revolves relative to the all-polarity sensor, the all-polarity sensor senses and triggers an electric signal, and the all-polarity sensor has the advantages of being high in anti-interference capability, convenient to install, simple to use and high in universality.

Description

Technical Field

[0001] The invention relates to the technical field of position detection, and in particular to a Hall sensor component. Background Art

[0002] With the widespread application and popularity of garment production lines, people are placing higher demands on their efficient operation. The application scope of various sensors in garment production lines will become increasingly wider, playing a more important role in the garment manufacturing field. By using various sensors, garment production line equipment can achieve automated control, improve production efficiency and stability, reduce the operating status of assembly line equipment, reduce accident risks, and predict potential failures. Monitoring the production status of garment production lines and collecting production data play an important role.

[0003] In garment factories, electromagnetic interference can originate from a variety of equipment, such as sewing machines, cutting machines, ironing tables, and automated control systems. With the application of intelligent manufacturing technologies, garment factories are likely to use more automated equipment, which in turn generates electromagnetic interference (EMC) between these devices during operation. This electromagnetic interference directly impacts the reliability of various traditional sensors, posing significant risks to garment production.

[0004] The following problems may occur when traditional sensors such as proximity switches, photoelectric switches, and Hall switches are used in the above environments:

[0005] 1. Proximity switches: Proximity switches can be affected by ambient temperature, objects, and similar switches, which can affect their performance and reliability. Inductive proximity switches are easily affected by surrounding metal objects, causing the sensor to falsely trigger. The sensor circuit is also susceptible to electromagnetic interference (EMC).

[0006] 2. Photoelectric switches: Photoelectric switches can be affected by strong external light, leading to false triggering. In polluted environments, dust, water, oil, or chemical splashes can affect their operation, disrupting their proper function. Photoelectric switches must be properly installed to ensure that the light beam is transmitted and received correctly; otherwise, performance may be affected. Some types of photoelectric switches rely on the reflective properties of the surface. Smooth surfaces or surfaces that are similar in color to the background may affect detection.

[0007] 3. Hall switch: poor interactivity; unstable to the detected object. Utility Model Content

[0008] In order to solve the above-mentioned technical problems and shortcomings: how to solve the problems of weak anti-interference ability, poor environmental adaptability, unstable detection signal and limited application scenarios of existing sensors, the present invention provides a Hall sensor component with the advantages of strong anti-interference ability, easy installation, simple use and strong versatility.

[0009] To achieve the above-mentioned and other related purposes, the present invention adopts the following technical solutions:

[0010] A Hall sensor assembly includes a sensor-carrying circuit board, an omnipolar sensor, an insulating housing, and an N35 magnet. The insulating housing encapsulates the sensor-carrying circuit board and the omnipolar sensor. The sensor-carrying circuit board includes a protection circuit electrically connected to the omnipolar sensor. When the N35 magnet reciprocates, swings, or rotates relative to the omnipolar sensor, the omnipolar sensor senses and triggers an electrical signal.

[0011] The protection circuit includes a wiring terminal, a resistor R1, a capacitor C1, a capacitor C2, and a diode D1. The wiring terminal has a power supply VCC terminal, a signal terminal, and a ground terminal. The power supply VCC terminal is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the first pin of the omnipolar sensor and one end of the capacitor C1, the signal terminal is connected to the anode of the diode D1, the cathode of the diode D1 is connected to the second pin of the omnipolar sensor and one end of the capacitor C2, and the other end of the capacitor C1, the third pin of the omnipolar sensor, and the other end of the capacitor C2 are connected to the ground terminal.

[0012] Preferably, the protection circuit further includes a resistor R2 and an indicator light D3, the first pin of the omnipolar sensor is further connected to the anode of the indicator light D3 through the resistor R2, and the cathode of the indicator light D3 is connected to the second pin of the omnipolar sensor.

[0013] Preferably, the protection circuit further includes a resistor R3 and an indicator light D2, the first pin of the omnipolar sensor is further connected to the anode of the indicator light D2 through the resistor R3, and the cathode of the indicator light D2 is connected to the third pin of the omnipolar sensor.

[0014] Preferably, the capacitance of the capacitor C1 and the capacitor C2 is the same, which is 0.1 uF.

[0015] Preferably, the resistance of the resistor R1 is 1K ohm.

[0016] Preferably, the power supply VCC terminal is a DC voltage input terminal, and the voltage width range of the input DC power is 4.5V-35V.

[0017] Preferably, the effective sensing distance of the omnipolar sensor to the N35 magnet is 15 mm.

[0018] In summary, the present invention has at least one of the following beneficial technical effects:

[0019] 1. The omnipolar sensor is a type of Hall element and is not affected by light, electromagnetic, or dust pollution. It requires no maintenance throughout its life cycle.

[0020] 2. When working, the working status can be fed back through the status of the indicator light;

[0021] 3. It can work in a wider DC voltage range and has a wider range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the first application scenario diagram of the embodiment of the present invention;

[0023] Figure 2 This is a second application scenario diagram of an embodiment of the present invention;

[0024] Figure 3 This is a diagram of the third application scenario of the embodiment of the present invention;

[0025] Figure 4 1 is a circuit diagram of an embodiment.

[0026] Description of the reference numerals of the main components:

[0027] 100. Sensor mounting circuit board; 110. Protection circuit; 200. Omnipolar sensor; 300. Insulation housing; 400. N35 magnet. DETAILED DESCRIPTION

[0028] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0029] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. The illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component can be changed at will, and the component layout may also be more complex.

[0030] The following is combined with Figure 1-4 The specific implementation methods of the present invention are further described.

[0031] Example:

[0032] The embodiment of the present invention discloses a Hall sensor assembly, including a sensor-carrying circuit board 100, an omnipolar sensor 200, an insulating shell 300 and an N35 magnet 400. The insulating shell 300 encapsulates the sensor-carrying circuit board 100 and the omnipolar sensor 200. After the insulating shell 300 is encapsulated, it can effectively protect the circuit board 110 from bumps and wear, and can withstand certain impacts without being easily broken, thereby providing protection for the normal operation of the circuit.

[0033] The sensor mounting circuit board 100 includes a protection circuit 110. Figure 1-4 As shown, the protection circuit 110 is electrically connected to the omnipolar sensor 200, and the N35 magnet 400 reciprocates relative to the omnipolar sensor 200 ( Figure 1 shown), swing motion ( Figure 2 As shown), rotational motion ( Figure 3 As shown), the omnipolar sensor 200 senses and triggers an electrical signal.

[0034] Specific examples Figure 4 The protection circuit 110 includes a connection terminal P4, a resistor R1, a capacitor C1, a capacitor C2, and a diode D1. The connection terminal has a power supply VCC terminal, a signal terminal, and a ground terminal. The power supply VCC terminal is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the first pin of the omnipolar sensor 200 and one end of the capacitor C1, the signal terminal is connected to the anode of the diode D1, the cathode of the diode D1 is connected to the second pin of the omnipolar sensor 200 and one end of the capacitor C2, and the other end of the capacitor C1, the third pin of the omnipolar sensor 200, and the other end of the capacitor C2 are connected to the ground terminal.

[0035] Furthermore, the protection circuit 110 further includes a resistor R2 and an indicator light D3 . The first pin of the omnipolarity sensor 200 is further connected to the anode of the indicator light D3 via the resistor R2 , and the cathode of the indicator light D3 is connected to the second pin of the omnipolarity sensor 200 .

[0036] Furthermore, the protection circuit 110 further includes a resistor R3 and an indicator light D2 . The first pin of the omnipolar sensor 200 is further connected to the anode of the indicator light D2 via the resistor R3 , and the cathode of the indicator light D2 is connected to the third pin of the omnipolar sensor 200 .

[0037] Specifically, capacitors C1 and C2 have the same capacitance of 0.1uF. Resistor R1 has a resistance of 1k ohm. The power supply VCC terminal is a DC voltage input terminal, and the input DC voltage range is 4.5V-35V. The effective sensing distance of the omnipolar sensor 200 to the N35 magnet 400 is 15mm. In addition, the resistance of resistor R2 is 10k ohm. Indicator D3 is a signal indicator, and indicator D2 is a power indicator. Diode D1 prevents current backflow and protects the omnipolar sensor 200 (U1). Capacitors C1 and C2 act as filters, improving signal smoothness and resisting interference. Resistors R1, R2, and R3 act as current limiters to prevent excessive current. P4 is a terminal block that can be connected to other circuits. This circuit supports a wide voltage range of 4.5V to 35V DC and supports the following six wiring methods without damaging the component. The sensor can function normally after restoring the correct wiring method.

[0038]

[0039] As can be seen above, this solution supports the relative position of the sensor magnet and reciprocating, oscillating, and rotating motions. This omnipolar sensor is unaffected by magnet polarity, and the effective sensing distance between the sensor and the N35 magnet is 15mm. Within a 10mm mounting distance, a 5mm relative position deviation is tolerated for proper operation. The circuit operates under DC 4.5V-35V conditions, and any wiring will not damage the sensor. The sensor is also protected by corresponding indicator lights and is unaffected by light, electromagnetic, or dust contamination. It requires no maintenance throughout its lifecycle.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, any equivalent variations based on the structure, shape, or principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A Hall sensor assembly, comprising a sensor mounting circuit board (100), an omnipolar sensor (200), an insulating housing (300) and an N35 magnet (400), characterized in that: The insulating housing (300) encapsulates the sensor mounting circuit board (100) and the omnipolar sensor (200); the sensor mounting circuit board (100) includes a protection circuit (110); the protection circuit (110) is electrically connected to the omnipolar sensor (200); when the N35 magnet (400) performs reciprocating motion, swinging motion, and rotational motion relative to the omnipolar sensor (200), the omnipolar sensor (200) senses and triggers an electrical signal; The protection circuit (110) includes a connection terminal, a resistor R1, a capacitor C1, a capacitor C2, and a diode D1. The connection terminal has a power supply VCC terminal, a signal terminal, and a ground terminal. The power supply VCC terminal is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the first pin of the omnipolar sensor (200) and one end of the capacitor C1, the signal terminal is connected to the anode of the diode D1, the cathode of the diode D1 is connected to the second pin of the omnipolar sensor (200) and one end of the capacitor C2, and the other end of the capacitor C1, the third pin of the omnipolar sensor (200), and the other end of the capacitor C2 are connected to the ground terminal.

2. A Hall sensor assembly according to claim 1, characterized in that: The protection circuit (110) further comprises a resistor R2 and an indicator light D3; the first pin of the omnipolarity sensor (200) is further connected to the anode of the indicator light D3 via the resistor R2; and the cathode of the indicator light D3 is connected to the second pin of the omnipolarity sensor (200).

3. A Hall sensor assembly according to claim 2, characterized in that: The protection circuit (110) further comprises a resistor R3 and an indicator light D2; the first pin of the omnipolarity sensor (200) is further connected to the anode of the indicator light D2 via the resistor R3; and the cathode of the indicator light D2 is connected to the third pin of the omnipolarity sensor (200).

4. The Hall sensor assembly according to claim 1, characterized in that: The capacitance of the capacitor C1 and the capacitor C2 is the same, which is 0.1 uF.

5. The Hall sensor assembly according to claim 1, characterized in that: The resistance of the resistor R1 is 1K ohm.

6. A Hall sensor assembly according to claim 3, characterized in that: The power supply VCC terminal is a DC voltage input terminal, and the voltage width range of the input DC power is 4.5V-35V.

7. The Hall sensor assembly according to claim 1, characterized in that: The effective sensing distance of the omnipolar sensor (200) to the N35 magnet (400) is 15 mm.

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