Novel Hall rotary encoder

Abstract

The utility model relates to the field of encoders, and discloses a novel Hall rotary encoder, which comprises a shaft core and a PCB integrated block, one end of the shaft core is slidably connected with a wave disc, the inside of the wave disc is fixedly connected with a magnetic ring, one side of the PCB integrated block far away from the shaft core is fixedly connected with a chip, the periphery of the shaft core is fixedly connected with a shaft sleeve, and the shaft sleeve is fixedly connected with the magnetic ring. A rear cover abuts against the side, away from the shaft core, of the PCB integrated block, a middle cover abuts against the side, away from the chip, of the PCB integrated block, a positioning piece is fixedly connected to one side of the middle cover, a pressing piece is fixedly connected to one end of the shaft core, and a pressing switch is fixedly connected to the side, away from the chip, of the PCB integrated block. According to the utility model, the sensing precision is greatly improved and the rotation service life is greatly prolonged through the Hall chip, the precision of the EC11U can realize 512 pulses at most, and at the same time, the EC11U not only can be used for outputting conventional increment type signals, but also can be used for outputting absolute value signals.

Description

Technical Field

[0001] The utility model relates to the field of encoders, in particular to a novel Hall rotary encoder. Background Art

[0002] An encoder is a sensor device used to measure the rotation angle of mechanical rotary motion, control position and speed parameters, detect changes in the magnetic field, and provide necessary feedback information for the system. The Hall effect sensor is used to detect changes in the magnetic field to determine the position of the rotating shaft.

[0003] The Hall effect rotary encoder includes a rotating part, which is a component connected to a rotating mechanical device, and when it rotates, it will produce a corresponding angle change, including a magnetic field source, the magnetic field will change as the rotating shaft rotates, including a sensor for detecting the change in the magnetic field, and a signal processing circuit, which is responsible for receiving the signal from the Hall effect sensor and converting it into a digital or analog signal output;

[0004] The EC11 encoder currently on the market is affected by mechanical contact, and its lifespan is only between 30,000 and 100,000 cycles. In addition, its accuracy can hardly meet the requirements of some high-end products. The traditional mechanical encoder pulse can only achieve 30 bits within the size range of EC11, which is equivalent to a positioning angle accuracy of 12 degrees per gear. Therefore, a new Hall rotary encoder is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a novel Hall rotary encoder, which aims to improve the problem of low life and precision of the encoder in the prior art due to the influence of mechanical contact.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A novel Hall rotary encoder comprises a shaft core and a PCB integrated block, wherein one end of the shaft core is slidably connected to a wave disc, a magnetic ring is fixedly connected inside the wave disc, and a chip is fixedly connected to a side of the PCB integrated block away from the shaft core;

[0008] As a further description of the above technical solution:

[0009] The outer periphery of the shaft core is fixedly connected with a shaft sleeve;

[0010] As a further description of the above technical solution:

[0011] A rear cover is abutted against a side of the PCB integrated block away from the shaft core;

[0012] As a further description of the above technical solution:

[0013] A middle cover is abutted against a side of the PCB integrated block away from the chip, and a positioning piece is fixedly connected to one side of the middle cover;

[0014] As a further description of the above technical solution:

[0015] One end of the shaft core is fixedly connected with a pressing member;

[0016] As a further description of the above technical solution:

[0017] A push switch is fixedly connected to a side of the PCB integrated block away from the chip;

[0018] As a further description of the above technical solution:

[0019] The outer periphery of the shaft sleeve is slidably connected with a housing;

[0020] As a further description of the above technical solution:

[0021] The shell is fixedly connected to the rear cover.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, the sensing accuracy and rotation life are greatly improved by using the Hall chip. The accuracy of this EC11U can achieve a maximum of 512 pulses. At the same time, it can output not only conventional incremental signals but also absolute value signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a novel Hall rotary encoder proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a shaft sleeve of a novel Hall rotary encoder proposed in the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of a shaft core of a novel Hall rotary encoder proposed in the utility model;

[0027] Figure 4 The utility model provides a schematic structural diagram of a PCB integrated block of a novel Hall rotary encoder.

[0028] Legend:

[0029] 1. Outer shell; 2. Shaft core; 3. Shaft sleeve; 4. Wave plate; 5. Magnetic ring; 6. Positioning piece; 7. Middle cover; 8. Pressing pin; 9. Press switch; 10. PCB integrated block; 11. Chip; 12. Back cover. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4 The utility model provides an embodiment: a novel Hall rotary encoder, including a shaft core 2 and a PCB integrated block 10, wherein a wave disc 4 is slidably connected to one end of the shaft core 2, a magnetic ring 5 is fixedly connected inside the wave disc 4, and a chip 11 is fixedly connected to the side of the PCB integrated block 10 away from the shaft core 2. The shaft core 2 is used to fix the magnetic ring 5 in the sink groove of the wave disc 4 in the form of hot riveting. The shaft core 2 is a rotating shaft used to connect rotating parts. The PCB integrated block 10 contains a circuit board of the chip 11 and related circuits, which is responsible for sensing the change of the magnetic field and converting it into an electrical signal output. The wave disc 4 is a magnetic or optical structure installed on the shaft core 2, which is used to sense the change of the rotation position and direction. The magnetic ring 5 can generate a magnetic field and work with the wave disc 4. The chip 11 is a key component for sensing the change of the magnetic field and generating an electrical signal.

[0032] Reference Figure 1 - Figure 3 A shaft sleeve 3 is fixedly connected to the outer periphery of the shaft core 2, a back cover 12 is abutted on the side of the PCB integrated block 10 away from the shaft core 2, a middle cover 7 is abutted on the side of the PCB integrated block 10 away from the chip 11, a positioning piece 6 is fixedly connected to one side of the middle cover 7, a pressing piece 8 is fixedly connected to one end of the shaft core 2, a pressing switch 9 is fixedly connected to the side of the PCB integrated block 10 away from the chip 11, a shell 1 is slidably connected to the outer periphery of the shaft sleeve 3, and the shell 1 is fixedly connected to the back cover 12. The shaft core 2 is fixed to the shaft sleeve 3 by riveting through a C-shaped clamp ring. The shaft sleeve 3 is used to protect the shaft core 2, prevent dust or other external objects from entering the interior, and provide additional protection. The back cover 12 is used to close the entire structure, protect internal components, and provide structural support and integrity. The middle cover 7 connects the outer shell 1 and the back cover 12 to provide structural support and protect internal components. The positioning piece 6 is used to initialize or calibrate the encoder to ensure the accuracy of the measurement. The press button 8 is used to manually trigger a specific operation. The press switch 9 provides a manually operated switch function for interacting with other functions or systems related to the encoder. The outer shell 1 provides mechanical support and protection of internal components to ensure the stability and durability of the encoder. The four rivet feet of the outer shell 1 are riveted to the back cover 12 to fix the entire product.

[0033] Working principle: input a voltage to pin 1 of the PCB, connect pin 2 to GND, and rotate the shaft core 2 manually or mechanically to drive the wave disk 4 to rotate the magnetic ring 5. The chip 11 at the bottom of the PCB integrated block 10 transmits signals by obtaining the changes in the rotation of the magnetic ring 5. Pins 3 and 4 of the PCB are used as the AB signal output ports and pin 5 of the PCB is used as the functional pin of the press switch 9. When the shaft core 2 is pressed downward, the switch presser 8 presses the pot piece, so that the pot piece connects to the circuit on the PCB.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel Hall rotary encoder, comprising a shaft core (2) and a PCB integrated block (10), characterized in that: One end of the shaft core (2) is slidably connected to a wave disc (4), a magnetic ring (5) is fixedly connected inside the wave disc (4), and a chip (11) is fixedly connected to a side of the PCB integrated block (10) away from the shaft core (2).

2. A novel Hall rotary encoder according to claim 1, characterized in that: A shaft sleeve (3) is fixedly connected to the outer periphery of the shaft core (2).

3. A novel Hall rotary encoder according to claim 2, characterized in that: A rear cover (12) is abutted against a side of the PCB integrated block (10) away from the shaft core (2).

4. A novel Hall rotary encoder according to claim 1, characterized in that: A side of the PCB integrated block (10) away from the chip (11) is in contact with a middle cover (7), and a positioning piece (6) is fixedly connected to one side of the middle cover (7).

5. According to claim 1, the novel Hall rotary encoder is characterized in that: One end of the shaft core (2) is fixedly connected to a pressing member (8).

6. A novel Hall rotary encoder according to claim 1, characterized in that: A push switch (9) is fixedly connected to a side of the PCB integrated block (10) away from the chip (11).

7. A novel Hall rotary encoder according to claim 3, characterized in that: The outer periphery of the shaft sleeve (3) is slidably connected to the outer shell (1).

8. The novel Hall rotary encoder according to claim 7 is characterized in that: The housing (1) is fixedly connected to the rear cover (12).

Images