A working mode switching system for a rotary transformer transmitter

Abstract

The application relates to a working mode switching system for a rotary transformer transmitter and belongs to the technical field of generators, which comprises a base, a motor stator arranged on the base and a motor rotor coaxially arranged with the motor stator; an excitation device installed on the base and connected with the motor stator and the motor rotor respectively; a switching control module installed on the base and connected with the excitation device; wherein the excitation device sets the motor stator or the motor rotor as an excitation end in response to a control signal of the switching control module. The application has the effect of simplifying the steps of changing the excitation end of the rotary transformer transmitter by the user.

Description

Technical Field

[0001] This application relates to the technical field of generators, and in particular to a working mode switching system for a resolver transmitter. Background Technology

[0002] Conventional single-channel resolver transmitters have two configurations: either the stator is the excitation end and the rotor is the output end, or the rotor is the excitation end and the stator is the output end; both are split-type structures. A resolver transmitter with only one excitation end can only meet the user's single-function requirement during operation.

[0003] When a user needs to change the structure of their motor and requires a resolver transmitter with the same structure but opposite excitation end, the user needs to replace the current resolver motor, select and connect another resolver motor that meets the requirements, in order to change the excitation end of the resolver transmitter. This process is rather cumbersome for the user. Summary of the Invention

[0004] To facilitate users in changing the excitation end of a resolver transmitter, this application provides a system for switching the operating mode of a resolver transmitter.

[0005] The working mode switching system for a resolver transmitter provided in this application adopts the following technical solution: A working mode switching system for a resolver transmitter includes: a base, a motor stator disposed on the base, and a motor rotor coaxially disposed with the motor stator; An excitation device is installed on the base and connected to the motor stator and the motor rotor respectively; A switching control module is installed on the base and connected to the excitation device; The excitation device responds to the control signal of the switching control module by setting the motor stator or the motor rotor as the excitation end.

[0006] By adopting the above technical solution, when a user needs to change the excitation end of the resolver transmitter, the switching control module generates and sends a control signal. The excitation device responds to the control signal from the switching control module and sets the motor stator or motor rotor as the excitation end. This realizes the switching selection process of the resolver transmitter's excitation end, enabling a single resolver transmitter to simultaneously meet the user's different excitation end selection needs without requiring the user to replace the entire resolver transmitter, thus simplifying the steps for users to change the excitation end of the resolver transmitter.

[0007] Optionally, the excitation device includes two sets of stator windings connected to the motor stator and two sets of rotor windings connected to the motor rotor; both the stator windings and the rotor windings are connected to the switching control module and short-circuited in response to the control signal of the switching control module; wherein the stator windings and the rotor windings are not simultaneously in a short-circuited state.

[0008] By adopting the above technical solution, both the motor stator and the motor rotor are equipped with two-phase windings. When the motor stator needs to be the excitation end, the switching control module controls one winding of the stator winding to short-circuit, thereby achieving stator excitation; when the rotor needs to be the excitation end, the switching control module controls one winding of the rotor winding to short-circuit, thereby achieving rotor excitation.

[0009] Optionally, the switching control module includes relays connected to the stator winding and the rotor winding respectively, and both the stator winding and the rotor winding are short-circuited in response to the switching control signal of the relay.

[0010] By adopting the above technical solution, the switching control module controls the stator winding and rotor winding through relays. The relays control the short-circuit state of the stator winding and rotor winding by opening and closing the control circuit switch.

[0011] Optionally, it also includes a working mode detection module and a working mode indication module disposed on the base. The working mode detection module is connected to the excitation device and the working mode indication module respectively. The working mode indication module operates in response to the detection signal of the working mode detection module.

[0012] By adopting the above technical solution, when the resolver transmitter is working under different excitation states, the working mode detection module generates and sends a detection signal according to the working state of the resolver transmitter, and the working mode indication module operates in response to the detection signal of the working mode detection module to indicate the working state of the resolver transmitter.

[0013] Optionally, the operating mode indication module includes an indicator light connected to the operating mode detection module, the indicator light operating in response to the detection signal from the operating mode detection module.

[0014] By adopting the above technical solution, the indicator light of the resolver transmitter will be different in color when it is working under different excitation states. Users can know the current excitation end of the resolver transmitter by looking at the color of the indicator light.

[0015] Optionally, the base is provided with a power-off control module connected to the switching control module. The power-off control module is connected to the stator winding and the rotor winding respectively. The power-off control module controls the stator winding and the rotor winding to be de-energized in response to the control signal of the switching control module.

[0016] By adopting the above technical solution, when the resolver switches the excitation end, the power-off control module responds to the control signal of the switching control module and controls the stator winding and rotor winding to disconnect the power, so that the resolver can automatically disconnect the power during the excitation end switching process, reducing the possibility of accidents.

[0017] Optionally, the base is provided with a voltage detection module connected to the stator winding and the rotor winding. The voltage detection module is used to generate a voltage detection signal based on the stator terminal voltage and the rotor terminal voltage.

[0018] By adopting the above technical solution, when the resolver is working, the voltage detection module monitors the stator end voltage and rotor end voltage in real time, so that users can intuitively know the working status of the resolver.

[0019] Optionally, the base is provided with a power-on control module connected to the voltage detection module. The power-on control module is connected to the stator winding and the rotor winding respectively. The power-on control module controls the stator winding and the rotor winding to connect in response to the voltage detection signal of the voltage detection module.

[0020] By adopting the above technical solution, when performing the excitation end switching operation, the voltage detection module monitors the stator end voltage and rotor end voltage in real time. When both the stator end voltage and rotor end voltage are within the stable output range, the power-on control module responds to the voltage detection signal of the voltage detection module and controls the stator winding and rotor winding to connect, so that after the resolver transmitter switches the excitation end, it can automatically control the voltage output process and thus output a relatively stable voltage.

[0021] In summary, this application includes at least one of the following beneficial technical effects: When a user needs to change the excitation end of the resolver transmitter, the switching control module generates and sends a control signal. The excitation device responds to the control signal from the switching control module and sets either the motor stator or the motor rotor as the excitation end. This realizes the switching selection process of the resolver transmitter's excitation end, allowing a single resolver transmitter to simultaneously meet the user's different excitation end selection needs without requiring the user to replace the entire resolver transmitter, thus simplifying the process of changing the resolver transmitter's excitation end for the user.

[0022] Both the motor stator and the motor rotor are equipped with two-phase windings. When the motor stator is required to be the excitation end, the switching control module controls one winding of the stator winding to short-circuit, thereby achieving stator excitation. When the rotor is required to be the excitation end, the switching control module controls one winding of the rotor winding to short-circuit, thereby achieving rotor excitation.

[0023] When performing the excitation end switching operation, the voltage detection module monitors the stator end voltage and rotor end voltage in real time. When both the stator end voltage and rotor end voltage are within the stable output range, the power-on control module responds to the voltage detection signal from the voltage detection module and controls the stator winding and rotor winding to connect, so that after the resolver transmitter switches the excitation end, it can automatically control the voltage output process and thus output a relatively stable voltage. Attached Figure Description

[0024] Figure 1 This is a block diagram of each module in the embodiments of this application.

[0025] Figure 2 This is a block diagram highlighting the power-off control module and the power-on control module in the embodiments of this application.

[0026] Explanation of reference numerals in the attached drawings: 2. Motor stator; 3. Motor rotor; 4. Excitation device; 41. Stator winding; 42. Rotor winding; 5. Switching control module; 51. Relay; 6. Working mode detection module; 7. Working mode indication module; 71. Indicator light; 8. Power-off control module; 9. Voltage detection module; 10. Power-on control module. Detailed Implementation

[0027] The present application will be further described in detail below with reference to all the accompanying drawings.

[0028] This application discloses a working mode switching system for a resolver transmitter, referring to... Figure 1 The system includes a base, a motor stator 2 mounted on the base, and a motor rotor 3 coaxially mounted with the motor stator 2. When the resolver is operating, the motor stator 2 and motor rotor 3 rotate relative to each other, forming a rotating magnetic field that drives the resolver. The resolver has two operating states: one where the stator acts as the excitation end and the rotor as the output end; and the other where the rotor acts as the excitation end and the stator as the output end.

[0029] An excitation device 4 is installed on the base, and the excitation device 4 is connected to the motor stator 2 and the motor rotor 3 respectively. The excitation device 4 is used to change the working state of the motor stator 2 and the motor rotor 3. A switching control module 5 connected to the excitation device 4 is also installed on the base. The switching control module 5 receives the user's switching command, generates a control signal and sends it. The excitation device 4 responds to the control signal of the switching control module 5 and sets the motor stator 2 or the motor rotor 3 as the excitation end.

[0030] When a user needs to change the excitation end of the resolver transmitter, the switching control module 5 generates and sends a control signal. The excitation device 4 responds to the control signal from the switching control module 5 by setting either the motor stator 2 or the motor rotor 3 as the excitation end. This enables the switching and selection process of the resolver transmitter's excitation end, allowing a single resolver transmitter to simultaneously meet the user's different excitation end selection needs without requiring the user to replace the entire resolver transmitter, thus simplifying the process of changing the resolver transmitter's excitation end.

[0031] The excitation device 4 includes two sets of stator windings 41 connected to the motor stator 2 and two sets of rotor windings 42 connected to the motor rotor 3. The motor stator 2 and the motor rotor 3 are each connected to two-phase windings. When the resolver is not working, both sets of stator windings 41 and both sets of rotor windings 42 are in an open circuit state.

[0032] Both stator winding 41 and rotor winding 42 are connected to the switching control module 5 and are short-circuited in response to the control signal of the switching control module 5; however, stator winding 41 and rotor winding 42 are not simultaneously short-circuited. When the user needs the motor stator 2 as the excitation terminal, the switching control module 5 controls one winding of stator winding 41 to short-circuit, thereby achieving stator excitation; when the rotor needs to be excited, the switching control module 5 controls one winding of rotor winding 42 to short-circuit, thereby achieving rotor excitation.

[0033] The switching control module 5 includes relays 51 connected to both the stator winding 41 and the rotor winding 42. Both the stator winding 41 and the rotor winding 42 are short-circuited in response to the switching control signal from the relays 51. The switching control module 5 controls the short-circuiting process of the stator winding 41 and the rotor winding 42 through the relays 51. The relays 51 control the short-circuit state of the stator winding 41 and the rotor winding 42 by opening and closing the control circuit switch.

[0034] Reference Figure 1 and Figure 2 The base is provided with a power-off control module 8 connected to the switching control module 5. The power-off control module 8 is connected to the stator winding 41 and the rotor winding 42 respectively. The power-off control module 8 controls the stator winding 41 and the rotor winding 42 to disconnect in response to the control signal of the switching control module 5.

[0035] When the resolver transmitter switches the excitation end, the switching control module 5 controls the short circuit of the stator winding 41 and the rotor winding 42 through the relay 51. At this time, the power-off control module 8 responds to the control signal of the switching control module 5 and controls the stator winding 41 and the rotor winding 42 to disconnect, so that the resolver transmitter can automatically disconnect power during the excitation end switching process, reducing the possibility of accidents.

[0036] A voltage detection module 9, connected to the stator winding 41 and the rotor winding 42, is installed on the base. The voltage detection module 9 generates voltage detection signals based on the stator terminal voltage and the rotor terminal voltage. When the resolver is working, the voltage detection module 9 monitors the stator terminal voltage and the rotor terminal voltage in real time, allowing the user to intuitively understand the working status of the resolver.

[0037] The base is provided with a power-on control module 10 connected to the voltage detection module 9. The power-on control module 10 is connected to the stator winding 41 and the rotor winding 42 respectively. The power-on control module 10 controls the stator winding 41 and the rotor winding 42 to connect in response to the voltage detection signal of the voltage detection module 9.

[0038] When performing the excitation end switching operation, the power-off control module 8 responds to the control signal of the switching control module 5 and controls the stator winding 41 and rotor winding 42 to disconnect. At this time, the voltage detection module 9 monitors the stator end voltage and rotor end voltage in real time. When the stator end voltage and rotor end voltage are both within the stable output range, the power-on control module 10 responds to the voltage detection signal of the voltage detection module 9 and controls the stator winding 41 and rotor winding 42 to connect, so that after the resolver transmitter switches the excitation end, it can automatically control the voltage output process and thus output a relatively stable voltage.

[0039] The base is equipped with a working mode detection module 6 and a working mode indication module 7. The working mode detection module 6 is connected to the excitation device 4 and the working mode indication module 7 respectively. The working mode indication module 7 operates in response to the detection signal of the working mode detection module 6.

[0040] When the resolver transmitter is working under different excitation states, the working mode detection module 6 generates and sends a detection signal according to the working state of the resolver transmitter. The working mode indication module 7 operates in response to the detection signal of the working mode detection module 6 and indicates the working state of the resolver transmitter.

[0041] The operating mode indicator module 7 includes an indicator light 71 connected to the operating mode detection module 6, which operates in response to the detection signal from the operating mode detection module 6.

[0042] When the resolver transmitter is working under different excitation states, the indicator light 71 will have different colors. By observing the color of the indicator light 71, the user can know the current excitation state of the resolver transmitter, making it easier for the user to understand the working status of the resolver transmitter.

[0043] The implementation principle of the working mode switching system for a resolver transmitter according to an embodiment of this application is as follows: When the user needs to change the excitation end of the resolver transmitter, the switching control module 5 generates and sends a control signal. The excitation device 4 responds to the control signal of the switching control module 5 and sets the motor stator 2 or the motor rotor 3 as the excitation end. When the motor stator 2 is required as the excitation end, the switching control module 5 controls one winding of the stator winding 41 to short-circuit to achieve stator excitation. When the rotor is required as the excitation end, the switching control module 5 controls one winding of the rotor winding 42 to short-circuit to achieve rotor excitation, thereby realizing the switching selection process of the excitation end of the resolver transmitter.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A working mode switching system for a resolver transmitter, characterized in that, include: A base (1), a motor stator (2) mounted on the base (1), and a motor rotor (3) coaxially mounted with the motor stator (2); The excitation device (4) is installed on the base (1) and connected to the motor stator (2) and the motor rotor (3) respectively; The switching control module (5) is installed on the base (1) and connected to the excitation device (4); The excitation device (4) responds to the control signal of the switching control module (5) and sets the motor stator (2) or the motor rotor (3) as the excitation end; The excitation device (4) includes two sets of stator windings (41) connected to the motor stator (2) and two sets of rotor windings (42) connected to the motor rotor (3); both the stator windings (41) and the rotor windings (42) are connected to the switching control module (5) and are short-circuited in response to the control signal of the switching control module (5); wherein the stator windings (41) and the rotor windings (42) are not in a short-circuited state at the same time; The switching control module (5) includes a relay (51) connected to the stator winding (41) and the rotor winding (42) respectively. The stator winding (41) and the rotor winding (42) are both short-circuited in response to the switching control signal of the relay (51). It also includes a working mode detection module (6) and a working mode indication module (7) disposed on the base (1). The working mode detection module (6) is connected to the excitation device (4) and the working mode indication module (7) respectively. The working mode indication module (7) operates in response to the detection signal of the working mode detection module (6). The base (1) is provided with a power-off control module (8) connected to the switching control module (5). The power-off control module (8) is connected to the stator winding (41) and the rotor winding (42) respectively. The power-off control module (8) controls the stator winding (41) and the rotor winding (42) to be de-energized in response to the control signal of the switching control module (5). The base (1) is provided with a voltage detection module (9) connected to the stator winding (41) and the rotor winding (42). The voltage detection module (9) is used to generate a voltage detection signal based on the stator end voltage and the rotor end voltage. The base (1) is provided with a power-on control module (10) connected to the voltage detection module (9). The power-on control module (10) is connected to the stator winding (41) and the rotor winding (42) respectively. The power-on control module (10) controls the stator winding (41) and the rotor winding (42) to connect in response to the voltage detection signal of the voltage detection module (9).

2. The operating mode switching system for a resolver transmitter according to claim 1, characterized in that: The operating mode indication module (7) includes an indicator light (71) connected to the operating mode detection module (6), which operates in response to the detection signal of the operating mode detection module (6).

Images