Multifunctional pedal controller

Abstract

According to the multifunctional pedal controller, a pedal and a base are connected through a rotating shaft mechanism, magnetic steel is fixed to the rotating shaft mechanism, and when the pedal rotates around the axis of the rotating shaft mechanism, the magnetic steel and the rotating shaft mechanism rotate along with rotation of the pedal; the base is provided with an accommodating cavity with an open single surface, and the accommodating cavity is opposite to the pedal; the circuit board assembly is fixed in the accommodating cavity of the base; the circuit board assembly comprises a basic circuit board and an expansion circuit board, and the basic circuit board and the expansion circuit board are vertically connected through a pin row; the basic circuit board is provided with a magneto-dependent sensor, and the magneto-dependent sensor is right opposite to the magnetic steel. The expansion circuit board is provided with a peripheral circuit and is connected with the magneto-dependent sensor through a needle row, and the peripheral circuit is connected with an external connecting line. By adopting the non-contact magnetic sensing technology, the durability and reliability of the product are improved, and the circuit board is convenient to design and output various types of control signals.

Description

Technical Field

[0001] This utility model relates to the field of foot pedal control technology, and in particular to a multifunctional foot pedal controller. Background Technology

[0002] Foot pedal controllers are common control devices widely used in vehicles, machine tools, and some desktop equipment. They control various devices by outputting electrical signals proportional to the angle of the pedal's tread. Foot pedal controllers typically have only one-dimensional rotational motion; they rotate when pressure is applied by the operator's foot, and a reset mechanism returns the pedal surface to its natural state once the external force is removed.

[0003] Traditional foot pedal controllers typically use potentiometers or microswitches to output signals. These mechanical structures are prone to wear and tear during long-term use, leading to performance degradation or even failure, thus limiting the overall lifespan of the product.

[0004] Currently, the signal types provided by foot pedal controllers on the market are relatively limited, either analog signals (such as voltage or current) or switching signals, which cannot meet the needs of increasingly complex control systems for diverse signals.

[0005] The reliance on mechanical components in traditional designs limits the available space inside the base, making it difficult to install more complex or larger-scale circuit boards, which in turn affects the possibility of expanding the controller's functionality.

[0006] Contact-based sensing methods are susceptible to factors such as dust and humidity, which reduces the stability and reliability of the system. Utility Model Content

[0007] Based on the above problems, this utility model provides a multi-functional foot pedal controller, which solves the problems of single signal output and short service life of existing foot pedal controllers.

[0008] A multi-functional foot pedal controller includes a pedal, a base, and a circuit board assembly;

[0009] The pedal and the base are connected by a rotating shaft mechanism. A magnet is fixed on the rotating shaft mechanism. When the pedal rotates around the axis of the rotating shaft mechanism, the magnet and the rotating shaft mechanism rotate together with the pedal.

[0010] The base has a single-sided open receiving cavity, which faces away from the pedal;

[0011] The circuit board assembly is fixed in the receiving cavity of the base;

[0012] The circuit board assembly includes a base circuit board and an expansion circuit board, which are vertically connected by pin headers.

[0013] A magnetic sensor is installed on the basic circuit board, and the magnetic sensor is facing the magnet.

[0014] The expansion circuit board has peripheral circuitry and connects to the magnetic sensor via pin headers. The peripheral circuitry is also connected to external wiring.

[0015] Furthermore, the left and right side walls opposite to the pedal are provided with a first through hole and a second through hole, and the first through hole and the second through hole on each side wall are vertically connected.

[0016] The base has a third perforation on both the left and right side walls;

[0017] The rotating mechanism includes a left rotating shaft and a right rotating shaft;

[0018] The left pivot shaft passes through the first through hole on the left side wall of the pedal and the third through hole on the left side wall of the base. The pivot screw passes through the second through hole on the left side wall of the pedal and connects with the left pivot shaft to fix the left side wall of the pedal and the left pivot shaft.

[0019] The right pivot shaft passes through the first through hole on the right side wall of the pedal and the third through hole on the right side wall of the base. The pivot screw passes through the second through hole on the right side wall of the pedal and connects with the right pivot shaft, thereby fixing the right side wall of the pedal and the right pivot shaft.

[0020] Furthermore, the magnet is fixed to the end face of one of the left and right rotating shafts, and the magnet is located in the accommodating cavity.

[0021] Furthermore, the foot pedal controller also includes a rubber plate and a bottom cover plate;

[0022] The rubber sheet and the bottom cover are connected to the base by the first screw, sealing the circuit board assembly within the accommodating cavity.

[0023] Furthermore, the front side wall of the base is equipped with a waterproof connector for connecting external cables.

[0024] Furthermore, a return spring is also provided between the bottom cavity of the pedal and the upper end face of the base.

[0025] Furthermore, the magnetic sensor is a first magnetic sensor chip with dual independent outputs;

[0026] The expansion circuit board includes a first relay switching circuit and a second relay switching circuit.

[0027] The first relay switch circuit includes a first relay switch and a first transistor. The base of the first transistor is connected to the first switching signal output of the first magnetic sensitive chip, the collector of the first transistor is grounded, and the emitter of the first transistor is connected to the first relay switch.

[0028] The second relay switch circuit includes a second relay switch and a second transistor. The base of the second transistor is connected to the second switching signal output of the first magnetic sensitive chip, the collector of the second transistor is grounded, and the emitter of the second transistor is connected to the second relay switch.

[0029] Furthermore, the magnetic sensor is a second magnetic sensor chip;

[0030] The expansion board includes a microcontroller and a CAN transceiver chip. The microcontroller's input is connected to the output of the magnetic sensor chip, and the microcontroller's output is connected to the input of the CAN transceiver chip.

[0031] Furthermore, the expansion board also includes a memory chip, which is connected to the microcontroller.

[0032] Furthermore, the expansion circuit board also includes a switching power supply chip, which supplies power to the second magnetic sensor chip, the microcontroller, the memory chip, and the CAN transceiver chip.

[0033] The beneficial technical effects of this utility model are as follows: By using non-contact magnetic sensing technology to replace traditional mechanical components (such as potentiometers and microswitches), performance degradation or malfunctions caused by long-term physical wear are effectively avoided, thus significantly improving the product's durability and reliability. Since it no longer relies on direct contact sensing, the new foot pedal controller has higher resistance to external factors such as dust and humidity, and can maintain stable operation in harsher working environments, improving the overall stability of the system. Through careful design of the base's internal structure, the circuit board layout area is maximized. This not only makes it possible to implement more complex control circuits but also allows for the integration of more functional modules within the same volume, increasing the product's functionality and flexibility. It can output various types of control signals—including but not limited to switching signals, analog signals (such as current and voltage), and various bus signals. This rich selection of signal types greatly broadens the application range and meets the precise control needs of different scenarios. Attached Figure Description

[0034] Figure 1-3 This is a schematic diagram of the structure of a multifunctional foot pedal controller according to the present invention;

[0035] Figure 4 This is a schematic diagram of the power circuit distribution of the basic circuit board and the expansion circuit board of a multifunctional foot pedal controller according to this utility model;

[0036] Figure 5-8 The electrical schematic diagrams of the base circuit board and expansion circuit board of the first embodiment of the multifunctional foot pedal controller of this utility model are shown.

[0037] Figure 9-15This is an electrical schematic diagram of the base circuit board and expansion circuit board for a second embodiment of the multifunctional foot pedal controller of this utility model. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0041] See Figure 1 and Figure 2 This utility model provides a multi-functional foot pedal controller, including a pedal (1), a base (6) and a circuit board assembly (7);

[0042] The pedal (1) and the base (6) are connected by a rotating shaft mechanism. A magnet (12) is fixed on the rotating shaft mechanism. When the pedal (1) rotates around the axis of the rotating shaft mechanism, the magnet (12) and the rotating shaft mechanism rotate together with the pedal (1).

[0043] The base (6) has a single-sided open receiving cavity facing away from the pedal (1);

[0044] The circuit board assembly (7) is fixed in the receiving cavity of the base (6);

[0045] The circuit board assembly (7) includes a base circuit board (7A) and an extension circuit board (7B), which are vertically connected by pin headers.

[0046] A magnetic sensor is provided on the basic circuit board (7A), and the magnetic sensor is facing the magnet (12);

[0047] The expansion circuit board (7B) has peripheral circuitry, which connects to the magnetic sensor via pin headers. The peripheral circuitry is also connected to external wiring.

[0048] This invention provides a long-life foot pedal controller based on actual needs, achieved through a non-contact structure, and the foot pedal can output various electrical signals.

[0049] Specifically, the pedal (1) can be a rectangular flat plate part that is close to the size of an adult male's foot. The front of the pedal (1), i.e. the tread surface, has a large number of anti-slip stripes, and the friction coefficient with the sole of the footer is increased through the granular treatment and anti-slip coating on the surface, ensuring the reliability of stepping. The outer periphery and back cavity of the pedal (1) have folded edges (2) and reinforcing ribs to enhance the structural strength and rigidity of the entire pedal (1).

[0050] Furthermore, the left and right sidewalls of the pedal (1) are provided with a first through hole and a second through hole, and the first through hole (101) and the second through hole (102) on each sidewall are vertically connected.

[0051] The base (6) has a third through hole (601) on each of its two opposite side walls;

[0052] The rotating mechanism includes a left rotating shaft (3) and a right rotating shaft (11);

[0053] The left pivot (3) passes through the first through hole (101) on the left side wall of the pedal (6) and the third through hole (601) on the left side wall of the base (6). The pivot screw (4) passes through the second through hole (102) on the left side wall of the pedal (1) and connects with the left pivot (3) to fix the left side wall of the pedal (1).

[0054] The right pivot (11) passes through the first through hole (101) on the right side wall of the pedal (6) and the third through hole (601) on the right side wall of the base (6). The pivot screw (4) passes through the second through hole (102) on the right side wall of the pedal (1) and connects with the right pivot (11) to fix the right side wall of the pedal (1) and the right pivot (11).

[0055] Specifically, the second through hole (102) is a threaded hole. The shaft screw (4) is threadedly connected to the right rotating shaft (11) or the left rotating shaft (3).

[0056] Furthermore, the magnet (12) is fixed on the end face of one of the left rotating shaft (3) and the right rotating shaft (11), and the magnet (12) is located in the accommodating cavity.

[0057] Furthermore, the foot pedal controller also includes a rubber plate (8) and a bottom cover plate (9);

[0058] The rubber plate (8) and the bottom cover plate (9) are connected to the base (6) by the first screw (B) to seal the circuit board assembly (7) in the accommodating cavity.

[0059] Specifically, the extended circuit board (7B) of the circuit board assembly (7) is fixed to the receiving cavity of the base (6) by a second screw (A). Then, a rubber plate (8) and a bottom cover plate (9) seal the opening of the receiving cavity to seal the circuit board assembly (7) within the receiving cavity. Specifically, the rubber plate (8) is sandwiched between the bottom cover plate (9) and the base (6).

[0060] Furthermore, the front side wall of the base (6) is provided with a waterproof connector (10) for connecting external connection cables.

[0061] The waterproof connector (10) facilitates the outward extension of the internal wiring harness to form external connection lines and external equipment connections.

[0062] Furthermore, a return spring (5) is provided between the bottom cavity of the pedal (1) and the upper end face of the base (6).

[0063] When pressure is applied to the tread of pedal (1) due to being pressed, the return spring (5) is compressed due to the pressure, causing the tread of pedal (1) to rotate around the axis of the rotating shaft mechanism. When the pressure is released from the tread of pedal (1), the return spring (5) releases the pressure, causing the tread of pedal (1) to rotate in the opposite direction around the axis of the rotating shaft mechanism, returning to its original position.

[0064] The base (6) is a single-sided open cavity structure that is close to a flat cuboid. The pedal (1) is connected to the base (6) via a left pivot (3) and a right pivot (11) and can rotate around the axes of the two pivots, with the range of rotation limited by the base (6). Two return springs (5) are installed between the base (6) and the pedal (1). The springs provide a return force to the pedal (1). When the external force disappears, the pedal (1) will return to its initial position under the action of the return springs (5). By configuring the parameters of the return springs (5), such as the elastic coefficient, the pedal pressure of the foot pedal controller can be adjusted.

[0065] See Figure 3 In one implementation, after the right-hand pivot (11) passes through the pedal (1) and the base (6), the pivot screw (4) is screwed into the screw hole of the pedal (1), i.e., the second through hole, and inserted into the through hole on the side of the right-hand pivot (11) to lock the right-hand pivot (11) and prevent it from loosening. The left-hand pivot is locked in the same way. A sealing ring (C) is installed in the groove of the right-hand pivot (11) to prevent external dust and water from entering the receiving cavity of the base (6) through the gap in the pivot hole. The left-hand pivot (3) on the other side adopts the same installation method as the right-hand pivot (11).

[0066] For details, see Figure 1 and Figure 4The base (6) contains a circuit board assembly (7) in its internal cavity. The circuit board assembly (7) is connected to the base (6) by five second screws (A). The rubber plate (8) and the bottom cover plate (9) are mounted on the bottom of the base (6) by four first screws (B) to prevent external dust and water from entering the interior of the base (6) from the bottom. A waterproof connector (10) is installed in a threaded hole on the front side wall of the base (6). The wires of the circuit board assembly (7) are guided to the outside through the waterproof connector (10) to form an external connection line. The waterproof connector (10) prevents external dust and water from entering the interior of the base (6) from the outlet. A magnet (12) is mounted on the end of the right rotating shaft (11). The magnet (12) can rotate together with the right rotating shaft (11) as the pedal (1) rotates. The circuit board assembly (7) consists of a base circuit board (7A) and an extension circuit board (7B). The two circuit boards are vertically connected by pin headers. The base circuit board (7A) has a magnetic sensor, such as a magnetic chip, which faces the magnet (12) and can detect changes in the magnetic field of the magnet (12). This change is transmitted to the expansion circuit board (7B) via an electrical signal. On the expansion circuit board (7B), the signals output from the base circuit board (7A) are processed by peripheral circuitry to output various signals, such as switch signals, analog signals, and bus signals. These can be specifically configured according to actual applications and requirements, such as CAN / RS485 / USB, and additional functions such as zero-position setting can also be implemented. Simultaneously, the external power supply VCC is also supplied to the expansion circuit board (7B) and further powers the base circuit board (7A). For the first specific embodiment of this utility model, see [link to relevant documentation]. Figures 5-8 The magnetic sensor is a dual-channel independent output first magnetic sensor chip (U1);

[0067] The expansion circuit board (7B) includes a first relay switching circuit and a second relay switching circuit;

[0068] The first relay switch circuit includes a first relay switch and a first transistor. The base of the first transistor is connected to the first switching signal output of the first magnetic sensitive chip, the collector of the first transistor is grounded, and the emitter of the first transistor is connected to the first relay switch.

[0069] The second relay switch circuit includes a second relay switch and a second transistor. The base of the second transistor is connected to the second switching signal output of the first magnetic sensitive chip, the collector of the second transistor is grounded, and the emitter of the second transistor is connected to the second relay switch.

[0070] Specifically, the first magnetic sensor chip is an MT6501GT chip. The first magnetic sensor chip outputs two analog signals and two digital signals.

[0071] This is the second specific embodiment of the present invention. Figures 5-8The electrical schematic diagram is provided, and the specific method for a multi-functional foot pedal controller to achieve common-source dual-channel analog output + two-channel switch signal output is introduced.

[0072] Figure 5 The electrical schematic of the base circuit board (7A) is based on a magnetic sensing circuit. This circuit can output dual analog signals and two digital signals. U1 is a dual independent magnetic sensing chip MT6501GT. This chip can detect changes in the magnetic field and output two analog signals (OUT1 and OUT2) and two digital signals (S1 and S2). C1 and C3 are filter capacitors for the two power supplies of the magnetic sensing chip U1. C2 and C4 are filter capacitors for the two analog signal outputs of the U1 magnetic sensing chip. R1 and R2 are pull-down loads for the two analog signal outputs of the U1 magnetic sensing chip. R3, R4, C5, and C6 are peripheral circuits for the two digital signal outputs of the U1 magnetic sensing chip. P1 is a 6-pin header used to connect the base circuit board (7A) and the expansion circuit board (7B) and for power and signal transmission.

[0073] Figures 6 to 8 This is the electrical schematic of the expansion board (7B). Figures 6-7 This is a two-way relay switch circuit. When the received switch signal from the base circuit board (7A) is low, the relay switch is energized; otherwise, it is de-energized. K1 (first relay switch) and K2 (second relay switch) are two relay switches. D1 is the freewheeling diode for the first relay switch K1. The first transistor Q1 is a PNP transistor used to control the on / off state of the two relay coils. R5 is the current-limiting resistor at the base of the first transistor Q1. D2 is the freewheeling diode for the second relay switch K2. The second transistor Q2 is a PNP transistor used to control the on / off state of the two relay coils. R6 is the current-limiting resistor at the base of the second transistor Q2. Figure 8 The diagram shows the wiring. P1 is a 6-pin header used to connect the base circuit board (7A) and the expansion circuit board (7B) and is used for power and signal transmission. This header P1 is soldered on the base circuit board (7A) and does not need to be soldered on the expansion circuit board (7B). D3 provides overvoltage protection for the power supply of the TVS.

[0074] Specifically, in the first embodiment, capacitors C1, C2, C3, and C4 are 10nF ± 10% 16V X7R, where nF represents the capacitance unit, ± represents the tolerance range, V represents the rated operating voltage, and X7R represents the capacitor type, i.e., X7R capacitors. Capacitors C5 and C6 are 4.7nF ± 10% 16V X7R. Resistors R1 and R2 are 20KΩ ± 5% 100mW, where Ω represents the nominal resistance unit, ± represents the tolerance range, and mW represents the rated power unit. Resistors R3 and R4 are 50Ω ± 1% 125mW. Resistors R5 and R6 are 1KΩ ± 5% 100mW. Specifically, D1 and D2 are model 1N4148W. Q1 and Q2 are model MMBT2907A. K1 and K2 are model HF49FD / 005-1H11. The base circuit board's pin header P1 is PZ254R-11-06P. The expansion circuit board's internal pin header P1 is PZ254V-11-06P, which does not require soldering. D3 model is SMBJ5.0A.

[0075] As a second specific embodiment of this utility model, see [link to relevant documentation]. Figures 9-15 The magnetic sensor is the second magnetic sensor chip (U5);

[0076] The expansion board (7B) includes a microcontroller (U3) and a CAN transceiver chip (U4). The microcontroller (U3) is connected to the output of the magnetic sensor chip, and the output of the microcontroller (U3) is connected to the input of the CAN transceiver chip (U4).

[0077] Furthermore, the expansion board (7B) also includes a memory chip (U2), which is connected to the microcontroller (U3).

[0078] Furthermore, the expansion board (7B) also includes a switching power supply chip (U6), which supplies power to the second magnetic sensor chip (U5), the microcontroller (U3), the memory chip (U2), and the CAN transceiver chip (U4).

[0079] Specifically, the second magnetic sensor chip (U5) is the MT6816CT chip.

[0080] As a second specific embodiment of this utility model, refer to Figures 9-15 The electrical schematic diagram is provided to illustrate the implementation of CANopen bus output in the multi-functional foot pedal controller, and to add a zero-position function.

[0081] Figure 9The electrical schematic of the base circuit board (7A) is shown. The core is the magnetic sensitive circuit, where U5 is the magnetic sensitive chip MT6816CT. This chip can detect changes in the magnetic field and output SPI signals. C1 is the filter capacitor for the power supply of the U5 magnetic sensitive chip. P1 is a 6-pin header used to connect the base circuit board (7A) and the expansion circuit board (7B) and is used for power and signal transmission.

[0082] Figures 10 to 15 This is the electrical schematic of the expansion circuit board (7B). Figure 10 This is a switching power supply circuit, supplying 9-30V and outputting 3.3V. D1 is a reverse polarity protection diode, D2 is a TVS diode providing overvoltage protection at the power supply end, U6 is a switching power supply chip RY8310, C5 and C6 are filter capacitors at the power input of the U6 switching power supply chip, L1 is an inductor at the output of the U6 switching power supply chip, R1 and R3 are voltage regulating resistors at the output of the U6 switching power supply chip, and C3 and C4 are filter capacitors at the output of the U6 switching power supply chip. This switching power supply circuit outputs 3.3V to power the U3 microcontroller STM32F103C8T6, the U2 EEPROM chip M24C02-RDW6TP, and the U4 CAN transceiver chip SN65HVD230DR.

[0083] Figure 11 , Figure 12 , Figure 13 and Figure 15 This is a minimum system circuit for a microcontroller and simple peripheral functional circuits. The minimum system circuit for this microcontroller uses a 32-bit architecture. The STM32F103C8T6 microcontroller U3 (including U3A and U3B) uses an M3 core and an external 8MHz crystal oscillator Y1. The microcontroller processes the SPI signal received from the base circuit board (7A) and outputs a CAN signal to the CAN transceiver chip U4. The storage chip U2 is an EEPROM M24C02-RDW6TP used to store configuration parameters and calibration data. R10, C14, and D3 form a zeroing circuit. By default, the microcontroller's zeroing port is pulled high. When the external neutral line is shorted to ground for more than 2 seconds, the zeroing port is pulled low, and the current angle signal is written to the microcontroller as the new zero position, thus achieving the zeroing function. D3 is a reverse connection protection diode, which effectively prevents damage to the product from incorrect wiring of the external zeroing line.

[0084] Figure 14 This is a CAN transceiver circuit, where U4 is the CAN transceiver chip, which enables the transmission and reception of CAN signals. D5 and D6 are TVS chips that provide overvoltage protection for the CAN signal output.

[0085] Specifically, in the second implementation method, in Figure 9-15 middle,

[0086] See Figure 9 In the second sensitive chip associated circuit, the capacitor C1 on the base circuit board is 100nF±10%16V; the pin header P1 of the base circuit board terminal is PZ254R-11-06P.

[0087] See Figure 10 In the circuit associated with the switching power supply chip, the switching power supply chip U6 is model RY8310. Capacitors C1 and C6 are 100nF±10% 50V. Capacitor C2 is 47pF±5% 50V. Capacitors C3 and C4 are 22μF±20% 10V. Capacitor C5 is 22μF±20% 35V. Capacitor C6 is 100nF±10% 50V. Resistor R1 is 49.9KΩ±0.1% 100mW. Resistors R2 and R4 are 10KΩ±5% 62.5mW. Resistor R3 is 16KΩ±0.1% 100mW. D1 is model 1N4007W. D2 is model SMF28A. L1 is 4.7μH±20% 1.25A 225mΩ CMLW252012P4R7MST, indicating that the inductance value of inductor L1 is 4.7μH (microhenries), the inductance value tolerance is ±20%, the rated current is 1.25A, the DC resistance of the inductor coil is 225mΩ, and the model number is CMLW252012P4R7MST.

[0088] See Figure 11 The memory chip is U2, model number M24C02-RDW6TP. Capacitors C7 and C8 are 100nF±10% 16V. Resistors R5 and R6 are 10KΩ±5% 62.5mW.

[0089] See Figure 12 , Figure 13 and Figure 15 This is the circuitry associated with the microcontroller (including U3A and U3B), model STM32F103C8T6. The internal terminal block P3 is model PZ254V-11-06P and does not require soldering. Resistors R7 and R9 are 100KΩ±5% 62.5mW. Resistor R8 is 1MΩ±5% 62.5mW. Resistor R11 is 10KΩ±5% 62.5mW. Resistor R12 is 1KΩ±1% 62.5mW. Resistor R10 is 10KΩ±5% 62.5mW. Capacitors C9 and C10 are 20pF±5% 50V. Capacitors C11, C12, C13, C14, C15, and C16 are 100nF±10% 16V. Inductor FB1 is model GZ1608D601TF. The LED D4 model is 19-217 / R6C-AL1M2VY / 3T.

[0090] See Figure 14This is the circuitry associated with the CAN transceiver chip, model number SN65HVD230DR. Capacitors C17 and C19 are 30pF±5% 50V. Capacitor C18 is 100nF±10% 16V. Resistor R13 is 10KΩ±1% 100mW. Resistor R14 is 120Ω±1% 500mW. The bidirectional Zener diodes D5 and D6 are model SMF7.0CA.

[0091] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-functional foot pedal controller, characterized in that, Includes pedals, base, and circuit board assembly; The pedal and the base are connected by a rotating shaft mechanism. A magnet is fixed on the rotating shaft mechanism. When the pedal rotates around the axis of the rotating shaft mechanism, the magnet and the rotating shaft mechanism rotate together with the pedal. The base has a single-sided open receiving cavity, which faces away from the pedal; The circuit board assembly is fixed within the accommodating cavity of the base; The circuit board assembly includes a base circuit board and an expansion circuit board, which are vertically connected by pin headers. A magnetic sensor is provided on the basic circuit board, and the magnetic sensor is facing the magnet. The extended circuit board has peripheral circuitry and is connected to the magnetic sensor via pin headers. The peripheral circuitry is connected to external connection lines.

2. A multi-functional foot pedal controller as described in claim 1, characterized in that, The pedal has a first through hole and a second through hole on its two opposite side walls, and the first through hole and the second through hole on each side wall are perpendicularly connected. The base has a third through hole on each of its two opposite side walls; The rotating shaft mechanism includes a left rotating shaft and a right rotating shaft; The left-hand pivot passes through the first through hole on the left side wall of the pedal and the third through hole on the left side wall of the base. The pivot screw passes through the second through hole on the left side wall of the pedal and connects with the left-hand pivot, thereby fixing the left side wall of the pedal and the left-hand pivot. The right-hand pivot passes through the first through hole on the right side wall of the pedal and the third through hole on the right side wall of the base. The pivot screw passes through the second through hole on the right side wall of the pedal and connects with the right-hand pivot, thereby fixing the right side wall of the pedal and the right-hand pivot.

3. A multi-functional foot pedal controller as described in claim 2, characterized in that, The magnet is fixed to the end face of one of the left and right rotating shafts, and the magnet is located in the accommodating cavity.

4. A multi-functional foot pedal controller as described in claim 1, characterized in that, The foot pedal controller also includes a rubber plate and a bottom cover plate; The rubber sheet and the bottom cover are connected to the base by a first screw, sealing the circuit board assembly within the accommodating cavity.

5. A multi-functional foot pedal controller as described in claim 1, characterized in that, The front side wall of the base is provided with a waterproof connector for connecting external cables.

6. A multi-functional foot pedal controller as described in claim 1, characterized in that, A return spring is also provided between the bottom cavity of the pedal and the upper end surface of the base.

7. A multi-functional foot pedal controller as described in claim 1, characterized in that, The magnetic sensor is a first magnetic sensor chip with dual independent outputs; The extended circuit board includes a first relay switch circuit and a second relay switch circuit. The first relay switch circuit includes a first relay switch and a first transistor. The base of the first transistor is connected to the first switching signal output of the first magnetic sensitive chip, the collector of the first transistor is grounded, and the emitter of the first transistor is connected to the first relay switch. The second relay switch circuit includes a second relay switch and a second transistor. The base of the second transistor is connected to the second switching signal output of the first magnetic sensitive chip, the collector of the second transistor is grounded, and the emitter of the second transistor is connected to the second relay switch.

8. A multi-functional foot pedal controller as described in claim 1, characterized in that, The magnetic sensor is a second magnetic sensor chip; The expansion circuit board includes a microcontroller and a CAN transceiver chip. The microcontroller is connected to the output of a magnetic sensor chip, and the output of the microcontroller is connected to the input of the CAN transceiver chip.

9. A multi-functional foot pedal controller as described in claim 8, characterized in that, The expansion circuit board also includes a memory chip, which is connected to the microcontroller.

10. A multi-functional foot pedal controller as described in claim 9, characterized in that, The expansion circuit board also includes a switching power supply chip, which supplies power to the second magnetic sensor chip, the microcontroller, the memory chip, and the CAN transceiver chip.

Images