Motor position detection structure integrated on control panel and circuit

Abstract

The utility model discloses a motor position detection structure and circuit integrated on a control board, which relates to the field of motor position detection and comprises a control board (1), a motor position sensor (2) and a motor position detection circuit (3). The motor position sensor (2) is fixed at the middle position of the control panel (1) and directly faces a rotor (4) of the motor to detect the position of the motor, and a signal is output through a motor position detection circuit. The motor position detection replaces the traditional motor magnetic braiding, so that the cost is reduced, the space is saved, and a motor resolver wiring harness is cancelled.

Description

Technical Field

[0001] This utility model relates to the field of motor position detection, specifically to a motor position detection structure and circuit integrated on a control board. Background Technology

[0002] Currently, motor position detection is mostly achieved using resolvers or magnetic encoders, which are costly, and zeroing resolvers is complex. To reduce costs, this new motor position detection method is proposed. Utility Model Content

[0003] Based on the above technical problems, the purpose of this utility model is to propose a costly alternative to traditional motor resolvers and magnetic encoders for detecting motor position. This solution utilizes a motor position sensor fixed on a control board, with the sensor facing the motor rotor. The control board is fixed at the tail of the motor to detect the motor position, thereby reducing costs and increasing productivity.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a motor position detection structure and circuit integrated on a control board, comprising a control board (1), a motor position sensor (2) and a motor position detection circuit (3); the control board (1) is fixed at the tail of the motor and serves as the carrier for the motor position sensor (2) and the motor position detection circuit (3).

[0005] Furthermore, the motor position sensor (2) is located in the middle of the control board, directly opposite the motor rotor.

[0006] Furthermore, the motor position detection circuit (3) includes a motor position sensor (2), filter capacitors C47, C48, C52, C53, C68, and C70, filter resistors R62, R63, R65, and R86, voltage divider resistors R64, R66, R85, and R87, and a voltage follower U9.

[0007] Furthermore, one end of the filter resistor R62 is connected to pin 1 of the motor position sensor, and the other end is connected to the filter capacitor C47, and also to one end of the voltage divider resistor R85. The other end of R85 is connected to one end of the voltage divider resistor R87 and one end of the filter capacitor C70, and also to pin 3 of the voltage follower. One end of the filter resistor R63 is connected to pin 8 of the motor position sensor, and the other end is connected to one end of the filter capacitor C48, and also to one end of the voltage divider resistor. The other end of the resistor R64 is connected to one end of the voltage divider resistor R66 and one end of the filter capacitor C53, and also to pin 5 of the voltage follower.

[0008] Furthermore, adjust the resistance values ​​of the voltage divider resistors R64 and R66, R85 and R87 to adjust the voltage value input to the voltage follower. Attached Figure Description

[0009] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0010] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0011] Figure 1 A schematic diagram of a motor position detection structure and circuit integrated on a control board is provided for Embodiment 1 of this utility model, wherein: 1-control board, 2-motor position sensor, 3-motor position detection circuit, 4-rotor;

[0012] Figure 2 A schematic diagram of a motor position detection structure and circuit integrated on a control board, as provided in Embodiment 1 of this utility model; Detailed Implementation

[0013] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0014] This embodiment proposes a motor position detection method integrated on a control board, including a control board (1), a motor position sensor (2) and a motor position detection circuit (3); the control board (1) is fixed at the tail of the motor and serves as the carrier for the motor position sensor (2) and the motor position detection circuit (3).

[0015] Furthermore, the motor position sensor (2) is located in the middle of the control board, directly opposite the motor rotor.

[0016] Furthermore, the motor position detection circuit (3) includes a motor position sensor (2), filter capacitors C47, C48, C52, C53, C68, and C70, filter resistors R62, R63, R65, and R86, voltage divider resistors R64, R66, R85, and R87, and a voltage follower U9.

[0017] Furthermore, one end of the filter resistor R62 is connected to pin 1 of the motor position sensor, and the other end is connected to the filter capacitor C47, and also to one end of the voltage divider resistor R85. The other end of R85 is connected to one end of the voltage divider resistor R87 and one end of the filter capacitor C70, and also to pin 3 of the voltage follower. One end of the filter resistor R63 is connected to pin 8 of the motor position sensor, and the other end is connected to one end of the filter capacitor C48, and also to one end of the voltage divider resistor. The other end of the resistor R64 is connected to one end of the voltage divider resistor R66 and one end of the filter capacitor C53, and also to pin 5 of the voltage follower.

[0018] Furthermore, adjust the resistance values ​​of the voltage divider resistors R64 and R66, R85 and R87 to adjust the voltage value input to the voltage follower.

[0019] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention are protected by the present invention.

Claims

1. A motor position detection structure and circuit integrated on a control board, characterized in that, It includes a control board (1), a motor position sensor (2) and a motor position detection circuit (3); the control board (1) is fixed at the tail of the motor and serves as the carrier for the motor position sensor (2) and the motor position detection circuit (3).

2. The motor position detection structure and circuit integrated on a control board according to claim 1, characterized in that, The motor position sensor (2) is located in the middle of the control board, directly facing the motor rotor.

3. The motor position detection structure and circuit integrated on a control board according to claim 1, characterized in that, The motor position detection circuit (3) includes a motor position sensor (2), filter capacitors (C47, C48, C52, C53, C68, C70), filter resistors (R62, R63, R65, R86), voltage divider resistors (R64, R66, R85, R87), and voltage follower U9.

4. The motor position detection structure and circuit integrated on a control board according to claim 3, characterized in that, One end of the filter resistor R62 is connected to pin 1 of the motor position sensor, and the other end is connected to the filter capacitor C47. It is also connected to one end of the voltage divider resistor R85. The other end of R85 is connected to one end of the voltage divider resistor R87 and one end of the filter capacitor C70. It is also connected to pin 3 of the voltage follower. One end of the filter resistor R63 is connected to pin 8 of the motor position sensor, and the other end is connected to one end of the filter capacitor C48. It is also connected to one end of the voltage divider resistor. The other end of the resistor R64 is connected to one end of the voltage divider resistor R66 and one end of the filter capacitor C53. It is also connected to pin 5 of the voltage follower.

5. The motor position detection structure and circuit integrated on a control board according to claim 4, characterized in that, The voltage input to the voltage follower can be adjusted by adjusting the resistance values ​​of the voltage divider resistors R64 and R66, R85 and R87.

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