Non-contact angle sensor

Abstract

The non-contact angle sensor comprises a shell and a circuit board, the shell comprises a fixed part shell and a rotating part shell, the circuit board comprises a chip which forms edit input through an external editor, a signal output port which is connected with the editor and executes chip edit is limited in the fixed part shell, and the rotating part shell is provided with a rotating part. The chip is used for editing and inputting an original point of the sensor, the signal output port is electrically connected with the circuit board, an opening is formed in the shell of the fixed part, magnets are arranged in the shell of the rotating part and are distributed in the magnetic field range of the chip, and the chip is a Shanghai Maikinghan 6501 chip, so that the produced non-contact angle sensor has the advantages that the structure is simple, and the production efficiency is high. High-reliability cutting of the magnetic field of the chip can be achieved, the existing requirements for resistance and voltage values output by the angle sensor are met, original point reset can be conducted on the angle sensor through the chip by inputting the original point of the sensor into the chip, and compared with an existing chip, the cost is greatly reduced, and the cost is reduced. And the structural design of the circuit board is greatly simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of angle sensors, in particular to a non-contact angle sensor. Background Art

[0002] Angle sensor is a measuring instrument used to detect angles. With its continuous promotion and application, it is constantly being used in various industries.

[0003] Some angle sensors currently available on the market are used in a type of winding machine for textile machinery, and are mainly used in the winding motor of the winding machine and its winding device, wherein one end of the winding motor is an output shaft for winding yarn or wire, and the angle sensor is generally fixed to the other end of the winding motor away from the output shaft, and the signal line of the angle sensor is connected to the winding motor, and the output shaft on the winding motor of the winding device is synchronously connected to the winding motor. Before the yarn is wound, the handle on the winding device is generally manually pulled to make the winding motor return to the starting point, and the synchronous angle sensor is also reset accordingly;

[0004] When the winding device is winding the yarn, as the number of yarn circles on the output shaft of the winding motor increases, that is, as the yarn wound on the yarn drum mounted on the output shaft gradually thickens, the yarn circles on the yarn drum will come into contact with the shaft on one side of the winding motor, causing the winding motor to deflect away from the shaft at a certain angle, and the angle sensor fixed on the winding motor will deflect along with the winding motor, thereby allowing the producer to accurately calculate the thickness of the yarn wound on the yarn drum by the deflection angle of the angle sensor.

[0005] In addition, most of the angle sensors currently used in winding machines on the market still use traditional carbon brush angle sensors, i.e., contact sensors. The carbon brush angle sensor mainly includes a fixed housing for fixing on the motor and a rotating housing that can rotate with the fixed housing. When the carbon brush angle sensor is used, the rotating housing rotates on the fixed housing with the deflection of the winding motor, i.e., the carbon brush head made of conductive material in the rotating housing and the carbon film (carbon powder material) in the fixed housing perform sliding friction and form a resistance value. As the rotating housing rotates continuously, the resistance value is continuously output, thereby changing the output voltage value (assuming that the entire section can output a voltage of 0-5V, and the rotatable angle of the rotating housing is 10°, it can be calculated that when it rotates 1°, the output voltage is 0.5V, and thus in actual work, the winding machine system can accurately calculate the thickness of the yarn wrapped on the bobbin according to the rotation angle of the rotating housing of the carbon brush angle sensor);

[0006] However, when the above-mentioned carbon brush angle sensor is used, the carbon brush angle sensor will be continuously used on the winding machine, that is, each time the carbon brush head is used, it will rub against the carbon film. Therefore, after a certain number of frictions, the carbon film will become thinner and thinner. That is, after the carbon film becomes thinner, while the carbon brush head is still brushing, the output resistance value will change from the preset value, resulting in inaccurate output volt value, which makes it impossible to accurately calculate the thickness of the yarn wrapped on the bobbin. At the same time, the carbon brush angle sensor structure has requirements on the assembly accuracy of the two-part shell. That is, if the deviation is too large after the two are assembled, it will directly affect the output resistance value.

[0007] In view of the defects existing in the above-mentioned contact angle sensors, non-contact angle sensors have gradually appeared on the market: that is, by setting a circuit board in the fixed part housing, setting a large bearing in the rotating part housing, and having a magnet at the inner ring position of the large bearing, that is, during operation, the large bearing and the magnet are driven by the rotation of the rotating part housing, that is, the magnetic field of the chip on the circuit board is cut by the magnet, and the output of 0-5V voltage is achieved through the single-chip microcomputer on the circuit board; however, the non-contact angle sensor of this structure, because it involves chips, single-chip microcomputers, and large bearings, will make the production cost of the non-contact angle sensor of this structure extremely high, and the circuit board also needs to involve a reset member, that is, during operation, because the angle sensor will deflect to a corresponding angle with the winding motor, and after a single deflection operation, when the yarn tube is changed for subsequent winding operation, the non-contact angle sensor needs to be manually pressed on the reset member to complete the reset of the non-contact angle sensor.

[0008] Based on the extremely high cost of the above-mentioned non-contact angle sensor, some manufacturers have launched another non-contact angle sensor. The difference between this sensor and the above-mentioned sensor is that it only omits the structure of the large bearing, while the chip, single-chip microcomputer and reset part are still involved. Therefore, this improved non-contact angle sensor still has the problem of high cost. Summary of the invention

[0009] In view of the above-mentioned deficiencies, the utility model provides a non-contact angle sensor which can greatly reduce the production cost.

[0010] In order to achieve the above purpose, the utility model adopts a non-contact angle sensor, including a shell and a circuit board, the shell includes a fixed part shell for fixing, and a rotating part shell limited in the fixed part shell and capable of rotating, the circuit board is limited in the fixed part shell, the circuit board includes a chip that has been edited and recorded by an external editor and is arranged toward one side of the rotating part shell, the fixed part shell is also limited with a signal output port that can be used to connect with an external editor and perform chip editing, and the chip also includes editing and recording for the original point of the sensor;

[0011] The signal output port includes an electrical connection end and a plug-in end, the electrical connection end is electrically connected to the circuit board, an opening for leading out the plug-in end on the signal output port is provided on the fixed part housing, a magnet is arranged on one side of the rotating part housing facing the fixed part housing, and the magnet is distributed within the range of the magnetic field of the chip in the fixed part housing; the chip is a Shanghai Magtron 6501 chip, and the magnet is a magnet.

[0012] The rotating housing rotates the magnet on it to cut the magnetic field part of the chip edited by the external editor. The resistance and voltage value outputted by it form an accurate calculation of the thickness wound on the yarn tube, and the original point of the sensor recorded in the chip forms the reset of the angle sensor after a single operation.

[0013] The beneficial effect of the above structure is that: by involving the non-contact angle sensor in the fixed part housing, the rotating part housing, the circuit board limited in the fixed part housing, and the magnet limited in the rotating part housing, and involving the chip of the circuit board in the signal output port that can be connected to the external editing for program editing and recording, the non-contact angle sensor after production can achieve a highly reliable cutting action of the magnetic field of the chip on the circuit board through the magnet, while meeting the existing requirements for the output resistance and voltage value of the angle sensor, and the chip of the circuit board of the utility model is synchronously recorded in the program editing and recording stage. The original point (zero point) of the sensor is input, so that after the angle sensor is deflected with the winding motor, when the angle sensor needs to reset the original point (zero point), it can be reset through the chip. Therefore, the non-contact angle sensor involved in the utility model can avoid the arrangement of the single-chip microcomputer and peripheral circuits on the circuit board, and at the same time adopts the design of editing and entering the program through the signal output port, which can also save the setting of the editing port on the circuit board. Therefore, the non-contact angle sensor involved in the utility model greatly reduces the cost and greatly simplifies the structural design of the circuit board.

[0014] The utility model is further configured such that the circuit board can adapt to the input of 3.3V voltage or 5V voltage.

[0015] As mentioned above, since the existing non-contact angle sensor involves the driving of the chip and the single-chip microcomputer, that is, 5V voltage is required to drive the single-chip microcomputer, and 3.3V is only required to drive the chip. Therefore, in order to ensure that the voltage input through the signal output port can drive the chip and the single-chip microcomputer respectively, the existing non-contact angle sensor needs to input at least 5V voltage, and the circuit board involved in the utility model can be input accordingly through an external editor, and only a chip is required, that is, there is no need to add a single-chip microcomputer on the circuit board, so that the non-contact angle sensor involved in the utility model can support the input of 3.3V voltage or 5V voltage. At the same time, since 3.3V voltage or 5V voltage is the common voltage on the market, the adaptability of the non-contact angle sensor involved in the utility model is greatly improved.

[0016] The utility model is further configured such that a receiving groove is provided in the rotating part shell on one side facing the fixed part shell, and the magnet is embedded in the receiving groove; a limiting column for limiting the circuit board is formed in the fixed part shell on one side facing the rotating part shell, and the openings provided on the fixed part shell are distributed on the side wall of the fixed part shell, and the electrical connection end electrically connected to the circuit board is connected between the circuit board and the fixed part shell.

[0017] Through the above-mentioned arrangement, the circuit board can be reliably limited in position within the fixed part shell, and the electrical connection end of the signal output port electrically connected to the circuit board can be reliably extended out from the side wall position of the fixed part shell, thereby ensuring that the electrical connection end can be reliably installed while ensuring that its arrangement does not affect the reliable rotation of the rotating part shell. In addition, the magnet can be limited in position within the rotating part shell, and the magnetic field of the chip can be reliably cut, ensuring the reliable output of the resistance value and the voltage.

[0018] The utility model is further configured that a rubber ring for dust prevention is limited on the rotating part housing relative to the side away from the fixed part housing, and a plurality of scale positions evenly distributed on the rubber ring are formed on the side of the rubber ring relative to the side away from the rotating part housing.

[0019] Through the above arrangement, since the non-contact sensor involved in the utility model is used after the non-contact sensor is fixed by the fixed part housing, and the rotating part housing can be on the fixed part housing, as the winding motor has more and more windings on its output shaft, the output shaft will continuously move away from the side away from the shaft, thereby making the rotating part housing and the fixed part housing an assembled arrangement, that is, after the two are assembled, they can be limited when moving in the opposite direction, and at the same time perform a rotating action, and synchronously, in order to realize the assembly between the rotating part housing and the fixed part housing, in order to facilitate disassembly and assembly, a number of disassembly grooves are usually opened at the position edge of the rotating part housing, and the rubber ring is used to conveniently cover the number of disassembly grooves, thereby achieving the required dustproof effect, that is, the rubber ring will rotate with the rotating part housing, and thus when the scale position is set on the rubber ring, the calculation of the thickness of the winding yarn wound on the output shaft will be more convenient, that is, it will be avoided that there will be no scale position, and before calculating the thickness of the winding yarn, the degree of rotation involved in the rotating part housing needs to be measured.

[0020] The utility model is further configured that a plurality of sensor installation positions are formed on the fixed part shell body near the edge on a side away from the rotating part shell body, and an avoidance position is formed on the fixed part shell body towards the inner side of the fixed part shell body relative to the side away from the rotating part shell body and close to the center position of the fixed part shell body.

[0021] Through the above-mentioned arrangement, in order to achieve reliable installation of the output shaft on the winding motor on the winding motor, a screw position is usually formed on the end of the winding motor that is away from the output shaft, that is, a head is generally protruding on the winding motor. When the non-contact angle sensor is installed on the winding motor, in order to avoid eccentricity, the center position of the non-contact angle sensor is generally required to be arranged directly opposite to the screw head. Therefore, when installing the non-contact angle sensor, it is usually necessary to raise the non-contact angle sensor to avoid interference between the two during installation. However, the existing method generally uses tools between gaskets to perform the required heightening, which affects the convenience of installation of the non-contact angle sensor. The non-contact angle sensor involved in the utility model forms an avoidance position on the inner side of the position close to the center, so that when the non-contact angle sensor is installed, the screw head can extend into the avoidance position, so that when the non-contact angle sensor is installed, no additional heightening is required, thereby ensuring that the convenience of installation of the non-contact angle sensor is greatly improved.

[0022] The utility model is further configured that the circuit board also includes a capacitor C1, pin 1 of the Shanghai MagnTek 6501 chip IC, the VIN end of the signal output port and one end of the capacitor C1 are connected to the power supply voltage VCC, pins 2, 3, and 4 of the Shanghai MagnTek 6501 chip IC are connected to GND, pin 5 of the Shanghai MagnTek 6501 chip IC and the OUT end of the signal output port are connected to the external OUTPUT end, the GND end of the signal output port is grounded, pin 6 of the Shanghai MagnTek 6501 chip IC, pin 8 of the Shanghai MagnTek 6501 chip IC and the other end of the capacitor C1 are connected to GND, and pin 7 of the Shanghai MagnTek 6501 chip IC is connected to the normally closed point NC.

[0023] Through the above arrangement, the non-contact angle sensor involved in the utility model can be reliably arranged on the circuit board involved in the non-contact angle sensor after involving the Shanghai MagnTek 6501 chip, and can reliably edit the input of the signal between the signal output port, and the signal sensing feedback and output to the outside world during the use stage, thereby ensuring that the non-contact angle sensor involved in the utility model can be reliably used after adopting the Shanghai MagnTek 6501 chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a first-view stereoscopic schematic diagram of a non-contact angle sensor according to a specific embodiment of the utility model;

[0025] Figure 2 yes Figure 1 An enlarged schematic diagram of

[0026] Figure 3 This is a second perspective stereoscopic schematic diagram of a non-contact angle sensor according to a specific embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the cooperation of the non-contact angle sensor of the specific embodiment of the utility model after the rotating part housing and the magnet are removed;

[0028] Figure 5 yes Figure 4 An enlarged schematic diagram of

[0029] Figure 6 It is a schematic diagram of the internal structure of the housing of the fixing part of a specific embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the cooperation between the rotating part housing and the magnet in a specific embodiment of the utility model;

[0031] Figure 8 It is a schematic diagram of the cooperation between the housing of the rotating fixing part and the circuit board in a specific embodiment of the utility model;

[0032] Fig. 9 It is a circuit principle diagram of a circuit board in a non-contact angle sensor according to a specific embodiment of the utility model. DETAILED DESCRIPTION

[0033] like Figure 1-9 As shown, the specific embodiment of the utility model is a non-contact angle sensor, including a housing and a circuit board 5, the housing including a fixed housing 1 for fixing, and a rotating housing 2 limited in the fixed housing 1 and capable of rotating, the circuit board 5 is limited in the fixed housing 1, and the circuit board 5 includes a chip 51 which has been edited and recorded by an external editor and is arranged toward one side of the rotating housing 2, and a signal output port 3 which can be used to connect with an external editor and execute editing of the chip 51 is also limited in the fixed housing 1, and the chip 51 also includes editing and recording for the original point of the sensor;

[0034] The signal output port 3 includes an electrical connection end and a plug-in end 31, the electrical connection end is electrically connected to the circuit board 5, an opening 13 for leading out the plug-in end 31 on the signal output port 3 is provided on the fixed part housing 1, a magnet 6 is arranged on one side of the rotating part housing 2 facing the fixed part housing 1, and the magnet 6 is distributed within the magnetic field of the chip 51 in the fixed part housing 1; the chip 51 is a Shanghai Magtron 6501 chip 51, and the magnet 6 is a magnet.

[0035] The rotating housing 2 rotates the magnet 6 thereon to cut the magnetic field portion of the chip 51 edited by the external editor. The resistance and voltage values ​​outputted by it form an accurate calculation of the thickness wound on the yarn tube, and through the sensor original point recorded in the chip 51, the angle sensor is reset after a single operation.

[0036] The above-mentioned method involves the non-contact angle sensor involving the fixed part housing 1, the rotating part housing 2, the circuit board 5 limited in the fixed part housing 1, and the magnet 6 limited in the rotating part housing 2, and involves the chip 51 of the circuit board 5 to the signal output port 3 that can be edited and recorded through the external editing connection, so that the non-contact angle sensor after production can realize the high-reliability cutting action of the magnetic field of the chip 51 on the circuit board 5 through the magnet 6, and at the same time meet the existing requirements for the output resistance and voltage value of the angle sensor, and the chip 51 of the circuit board 5 of the utility model is synchronized in the program editing and recording stage, and at the same time The original point (zero point) of the sensor is recorded, so that after the angle sensor is deflected by the winding motor, when the angle sensor needs to reset the original point (zero point), it can be reset through the chip 51. Therefore, the non-contact angle sensor involved in the utility model can avoid the arrangement of the single-chip microcomputer and peripheral circuits on the circuit board 5, and at the same time adopts a design of editing and recording the program through the signal output port 3, which can also save the setting of the editing port on the circuit board 5. Therefore, the non-contact angle sensor involved in the utility model greatly reduces the cost and greatly simplifies the structural design of the circuit board 5.

[0037] like Figure 4-5 As shown, the circuit board 5 can adapt to the input of 3.3V voltage or 5V voltage.

[0038] like Figure 4-7 As shown, a receiving groove 21 is provided in the rotating part housing 2 on one side facing the fixed part housing 1, and the magnet 6 is embedded in the receiving groove 21; a limiting column 14 for limiting the circuit board 5 is formed in the fixed part housing 1 on one side facing the rotating part housing 2, and the openings 13 provided on the fixed part housing 1 are distributed on the side wall of the fixed part housing 1, and the electrical connection end electrically connected to the circuit board 5 is connected between the circuit board 5 and the fixed part housing 1.

[0039] like Figure 1-2 As shown, a rubber ring 4 for dust prevention is positioned on the rotating part housing 2 relative to the side away from the fixed part housing 1 , and a plurality of scale positions 41 evenly distributed on the rubber ring 4 are formed on the side away from the rotating part housing 2 .

[0040] like Figure 3 As shown, a plurality of sensor mounting positions 11 are formed on the fixed portion housing 1 near the edge on the side away from the rotating portion housing 2, and an avoidance position 12 is formed on the fixed portion housing 1 towards the inner side of the fixed portion housing 1 relative to the side away from the rotating portion housing 2 and close to the center position of the fixed portion housing 1.

[0041] like Fig. 9As shown, the circuit board 5 also includes a capacitor C1, pin 1 of the Shanghai MagnTek 6501 chip IC, the VIN end of the signal output port and one end of the capacitor C1 are connected to the power supply voltage VCC, pins 2, 3, and 4 of the Shanghai MagnTek 6501 chip IC are connected to GND, pin 5 of the Shanghai MagnTek 6501 chip IC and the OUT end of the signal output port are connected to the external OUTPUT end, the GND end of the signal output port is grounded, pin 6 of the Shanghai MagnTek 6501 chip IC, pin 8 of the Shanghai MagnTek 6501 chip IC and the other end of the capacitor C1 are connected to GND, and pin 7 of the Shanghai MagnTek 6501 chip IC is connected to the normally closed point NC.

Claims

1. A non-contact angle sensor, comprising a housing and a circuit board, wherein the housing comprises a fixed housing for fixing, and a rotating housing limited in the fixed housing and capable of rotating, wherein the circuit board is limited in the fixed housing, and characterized in that: The circuit board includes a chip that has been edited and recorded by an external editor and is arranged toward one side of the rotating part housing. The fixed part housing also has a signal output port that can be used to connect to an external editor and perform chip editing. The chip also includes editing and recording for the original point of the sensor. The signal output port includes an electrical connection end and a plug-in end, the electrical connection end is electrically connected to the circuit board, an opening for leading out the plug-in end on the signal output port is provided on the fixed part housing, a magnet is arranged on one side of the rotating part housing facing the fixed part housing, and the magnet is distributed within the magnetic field range of the chip in the fixed part housing; The rotating housing rotates the magnet on it to cut the magnetic field part of the chip edited by the external editor. The resistance and voltage value outputted by it form an accurate calculation of the thickness wound on the yarn tube, and the original point of the sensor recorded in the chip forms the reset of the angle sensor after a single operation.

2. The non-contact angle sensor according to claim 1, characterized in that: The circuit board can adapt to the input of 3.3V voltage or 5V voltage.

3. The non-contact angle sensor according to claim 1 or 2, characterized in that: A receiving groove is provided in the rotating part housing on one side facing the fixed part housing, and the magnet is embedded in the receiving groove.

4. The non-contact angle sensor according to claim 1 or 2, characterized in that: A limiting column for limiting the circuit board is formed on one side of the fixed part shell facing the rotating part shell. The openings on the fixed part shell are distributed on the side wall of the fixed part shell. The electrical connection end electrically connected to the circuit board is connected between the circuit board and the fixed part shell.

5. The non-contact angle sensor according to claim 1 or 2, characterized in that: The magnet is a magnet.

6. The non-contact angle sensor according to claim 1 or 2, characterized in that: A rubber ring for dust prevention is provided on the rotating part housing at a position relative to the side away from the fixed part housing, and a plurality of scale positions evenly distributed on the rubber ring are formed on the side relative to the side away from the rotating part housing.

7. The non-contact angle sensor according to claim 1 or 2, characterized in that: The fixed part shell has several sensor installation positions formed near the edge on the side away from the rotating part shell, and an avoidance position is formed on the fixed part shell towards the inner side of the fixed part shell relative to the side away from the rotating part shell and close to the center position of the fixed part shell.

8. The non-contact angle sensor according to claim 5, characterized in that: The circuit board also includes a capacitor C1, a pin 1 of the chip IC, a VIN end of the signal output port and one end of the capacitor C1 are connected to a power supply voltage VCC, pins 2, 3, and 4 of the chip IC are connected to GND, a pin 5 of the chip IC and an OUT end of the signal output port are connected to an external OUTPUT end, the GND end of the signal output port is grounded, a pin 6 of the chip IC, a pin 8 of the chip IC and the other end of the capacitor C1 are connected to GND, and a pin 7 of the chip IC is connected to a normally closed point NC.

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