Novel encoder based on successive induction bits

Abstract

The utility model discloses a novel encoder based on successive sensing order, which comprises a first mounting seat used for fixing a magnet, a PCB (printed circuit board) welded with a Hall chip and a second mounting seat used for fixing the PCB, the first mounting seat and the second mounting seat rotate relatively during encoding, the PCB is provided with a first Hall chip and a second Hall chip, and the first Hall chip and the second Hall chip are arranged on the first mounting seat and the second mounting seat respectively. The first Hall chip and the second Hall chip are located on the same side plate face of the PCB, the circumferential radius of the first Hall chip and the circumferential radius of the second Hall chip relative to the rotation axis are equal, and the multiple magnet pieces are arranged on the first installation base at equal intervals around the rotation axis. According to the utility model, the successive induction time difference of the two Hall chips can be simulated into a digital signal so as to determine whether the induction signal is positive or negative, and the MCU algorithm efficiency can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to encoders, and in particular to a novel encoder based on sequential sensing positions. Background Art

[0002] An encoder is a communication device that converts angular displacement or linear displacement into electrical signals. It uses the Hall effect to change the magnetic flux at the Hall chip to generate a corresponding induction signal according to the change in magnetic flux. The positive and negative values ​​of the induction signal correspond to the forward and reverse rotation of the encoder's rotating parts. Existing encoders need to continuously determine the corresponding zero point position every time a sensing signal is generated. The efficiency of the MCU algorithm needs to be improved, and the need to continuously determine the corresponding zero point position is one of the effective new ways to improve the efficiency of the MCU algorithm. In order to adapt to the above new algorithm approach, we proposed a new encoder based on the order of sensing positions. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a novel encoder based on sequential sensing positions.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a new encoder based on sequential sensing positions, comprising a first mounting seat for fixing a magnet member, a PCB board welded with a Hall chip, and a second mounting seat for fixing the PCB board. During encoding, the first mounting seat and the second mounting seat rotate relative to each other, the PCB board is provided with a first Hall chip and a second Hall chip, the first Hall chip and the second Hall chip are located on the same side surface of the PCB board, the circumferential radius of the first Hall chip and the second Hall chip relative to the rotation axis is equal, and a plurality of the magnet members are arranged at equal intervals around the rotation axis at the first mounting seat.

[0005] It is further explained that the first mounting seat is provided with a mounting groove for mounting the magnet component.

[0006] To further explain, the PCB board is circular and is fixedly mounted in the circular cavity of the second mounting seat.

[0007] It is further explained that the second mounting seat is injected with sealant, and the PCB board is sealed in the sealant.

[0008] The beneficial effect of the utility model is that the utility model does not need to determine the positive or negative of the sensing signal by determining the corresponding zero point position, but only needs to simulate the time difference of the successive sensing of the two Hall chips into a digital signal to determine the positive or negative of the sensing signal, which can significantly improve the efficiency of the MCU algorithm. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure decomposition of the utility model.

[0010] Figure 2 It is a partial structural sectional view of the utility model.

[0011] Figure 3 It is a partial structural sectional view of the utility model.

[0012] Figure 4 It is a schematic diagram of the use of the utility model.

[0013] Figure 5 It is a sectional view of the overall structure of the utility model.

[0014] Figure 6 It is a partial structural sectional view of the utility model.

[0015] Figure numbers: 0, rotation axis; 10, first mounting seat; 11, mounting groove; 20, PCB board; 21, first Hall chip; 22, second Hall chip; 30, second mounting seat; 40, magnet; 50, sealant. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Combined with Figure 1 and attached Figure 5 As shown, a new encoder based on sequential sensing positions includes a first mounting seat 10 for fixing a magnet 40, a PCB board 20 welded with a Hall chip, and a second mounting seat 30 for fixing the PCB board 20. During encoding, the first mounting seat 10 and the second mounting seat 30 rotate relative to each other.

[0018] Combined with Figure 2 and attached Figure 4 As shown, the PCB board 20 is provided with a first Hall chip 21 and a second Hall chip 22, the first Hall chip 21 and the second Hall chip 22 are located on the same side of the PCB board 20, the first Hall chip 21 and the second Hall chip 22 have the same circumferential radius relative to the rotation axis O, and a plurality of magnets 40 are arranged at equal intervals around the rotation axis O on the first mounting seat 10. Figure 1 As shown, the number of the magnet members 40 is specifically 8, and the first mounting seat 10 is provided with a mounting groove 11 for mounting the magnet members 40 .

[0019] Combined with Figure 3 As shown, the PCB board 20 is circular and is fixedly mounted in the circular cavity of the second mounting seat 30. Figure 6 As shown, the second mounting seat 30 is injected with sealant 50, the PCB board 20 is sealed in the sealant 50, and the PCB board 20, the first Hall chip 21, the second Hall chip 22 and related core components are all wrapped by the sealant 60, thereby achieving a high sealing and waterproof effect.

[0020] When using, please Figure 4 As shown, the first mounting seat 10 or the second mounting seat 30 can be rotated separately to make the magnet 40 and the Hall chip at the PCB board 20 rotate relative to each other. The magnet 40 passes through the Hall chip as a trigger element, and the Hall chip senses the magnetic flux size when the magnet 40 passes through to generate an induction signal. When the magnet 40 passes through the first Hall chip 21 first, the induction signal is positive. When the magnet 40 passes through the second Hall chip 22 first, the induction signal is negative. The utility model does not need to determine the positive and negative of the induction signal by determining the corresponding zero point position. It only needs to simulate the time difference of the induction of the two Hall chips into a digital signal to determine the positive and negative of the induction signal, which can significantly improve the efficiency of the MCU algorithm. Finally, the Hall chip transmits the generated induction signal to the PCB board 20, and the PCB board 20 converts the induction signal into a corresponding electrical signal, thereby realizing the encoding function.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0023] The above description does not limit the technical scope of the present invention. Any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A novel encoder based on sequential sensing, comprising a first mounting seat (10) for fixing a magnet (40), a PCB board (20) welded with a Hall chip, and a second mounting seat (30) for fixing the PCB board (20), wherein the first mounting seat (10) and the second mounting seat (30) rotate relative to each other during encoding, and characterized in that: The PCB board (20) is provided with a first Hall chip (21) and a second Hall chip (22); the first Hall chip (21) and the second Hall chip (22) are located on the same side surface of the PCB board (20); the circumferential radii of the first Hall chip (21) and the second Hall chip (22) relative to the rotation axis (0) are equal; and a plurality of magnet members (40) are arranged at equal intervals around the rotation axis (0) on the first mounting seat (10).

2. A novel encoder based on sequential sensing positions according to claim 1, characterized in that: The first mounting seat (10) is provided with a mounting groove (11) for mounting the magnet component (40).

3. A novel encoder based on sequential sensing positions according to claim 1, characterized in that: The PCB board (20) is circular and is fixedly mounted in the circular cavity of the second mounting seat (30).

4. A novel encoder based on sequential sensing positions according to claim 1, characterized in that: The second mounting seat (30) is injected with a sealant (50), and the PCB board (20) is sealed in the sealant (50).

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