WO2018086435A1 - 马达启动方法、马达装置、色轮装置及投影设备 - Google Patents

马达启动方法、马达装置、色轮装置及投影设备 Download PDF

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Publication number
WO2018086435A1
WO2018086435A1 PCT/CN2017/105806 CN2017105806W WO2018086435A1 WO 2018086435 A1 WO2018086435 A1 WO 2018086435A1 CN 2017105806 W CN2017105806 W CN 2017105806W WO 2018086435 A1 WO2018086435 A1 WO 2018086435A1
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WO
WIPO (PCT)
Prior art keywords
motor
temperature
module
light source
ambient temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/105806
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English (en)
French (fr)
Inventor
杨佳翼
陈红运
李屹
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Shenzhen Appotronics Corp Ltd
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Appotronics Corp Ltd
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Application filed by Appotronics Corp Ltd filed Critical Appotronics Corp Ltd
Publication of WO2018086435A1 publication Critical patent/WO2018086435A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
    • G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Definitions

  • the present invention relates to the field of projection technology, and in particular, to a motor starting method, a driving control device, a color wheel device, and an associated projection device.
  • Color wheel devices such as fluorescent color wheels, are widely used in the fields of laser source illumination, projection, optical illumination, and optical storage.
  • the motor of the color wheel device usually uses a hydraulic motor.
  • the hydraulic motor is started at its rated starting current ⁇ as the starting temperature (for example, generally limited to ⁇ 5 ° C).
  • the oil pressure motor is simmered in an environment lower than the starting temperature, and the viscosity of the oil is increased. If the hydraulic motor is to be started, a high current which is much higher than the rated starting current is required.
  • a motor starting method includes the following steps:
  • the motor heat energy is supplied to preheat the motor to raise the temperature of the motor to the preset temperature
  • a rated starting current is provided to the motor to drive the motor to start and operate.
  • the motor is preheated by inputting a motor drive current to the motor to provide thermal energy to the motor;
  • the motor driving current value is not greater than a rated starting current value of the motor.
  • the motor is preheated by inputting light energy to provide thermal energy to the motor.
  • the startup method further includes the step of detecting an ambient temperature at which the motor operates, and when the ambient temperature is lower than the preset temperature ⁇ , performing the supplying of the thermal energy to the motor to preheat the motor step.
  • the motor supplies an operating current smaller than the rated starting current value to the motor.
  • a motor starting method comprising the steps of:
  • Step 1 detecting the ambient temperature of the motor operation, when the ambient temperature is lower than the preset temperature ⁇ , step 2 is performed, otherwise step 3 is performed;
  • Step 2 providing thermal energy to the motor to preheat the motor to raise the temperature of the motor to a preset temperature
  • Step 3 providing a rated starting current to the motor to drive the motor to start and operate.
  • a motor device includes a motor, a motor drive module, and a central control module, wherein the motor drive module is coupled to the central control module and the motor, and when the motor operates at a low ambient temperature A start ⁇ is required at a preset temperature, and the motor is supplied with thermal energy by a heat supply unit to preheat the motor to raise the temperature of the motor to the preset temperature.
  • the heating unit is the motor driving module, and the motor driving module provides warm energy to the motor by inputting a motor driving current to the motor to preheat the motor;
  • the motor driving current value is less than or equal to a rated starting current value of the motor.
  • the heating unit preheats the motor by inputting light energy to the motor to the motor.
  • the motor device further includes a temperature detecting module connected to the central control module, wherein the temperature detecting module is configured to detect an ambient temperature of the motor operation and feed back to the central control module Group
  • the central control module controls the motor drive module to send the motor-motor drive current.
  • the temperature detecting module feeds back the ambient temperature to the central control module, and when the ambient temperature rises to the preset temperature, the central control module controls the The motor drive module provides the rated starting current to the motor to drive the motor to start running; or the motor device further includes a storage module, wherein the storage module stores different ambient temperatures and corresponding presets thereof Intersection
  • the central control module searches for the corresponding preset first driving segment in the storage module according to the ambient temperature detected by the temperature detecting module, and according to the preset first driving segment
  • the length of the motor controls the motor drive module to deliver the motor drive current to the motor.
  • the operating current value of the motor after its running speed is stabilized is smaller than the rated starting current value.
  • a color wheel device comprising a color wheel and a motor device as described above, the motor of the motor device being coupled to the color wheel.
  • a projection apparatus comprising the color wheel device, the light source device and the light modulating device as described above, wherein the color wheel is disposed on an optical path emitted by the light source device, and the light modulating device is on the color wheel The device modulates within a section of the corresponding color light.
  • the light source device includes a light source and a light source driving module
  • the heating unit is the light source device
  • the light source driving module inputs a light source driving current to the light source to cause the light source to emit light to provide the motor thermal energy to preheat the motor.
  • the present invention provides a motor device, a color wheel device, a projection device, and a motor starting method.
  • the motor needs to be started. Preheating by providing thermal energy to the motor, causing the ambient temperature to rise to the preset temperature for normal startup, and the viscosity of the oil of the motor is also reduced to a normal viscosity, so that it is not required to be provided
  • the high current of the motor above the rated starting current can drive the motor to start and operate, thereby protecting the motor, extending the service life of the motor, and extending the service life of the color wheel device.
  • FIG. 1 is a schematic diagram of functional modules of a motor device according to first and second embodiments of the present invention
  • FIG. 2 is a current-turn relationship diagram of a motor according to a first embodiment of the present invention
  • FIG. 3 is a current-to-turn relationship diagram of a motor according to a second embodiment of the present invention.
  • 4 is a schematic diagram of functional modules of a color wheel device according to a third embodiment of the present invention
  • 5 is a schematic diagram of functional modules of a projection device according to a fourth embodiment of the present invention
  • FIG. 6 is a flow chart of a motor starting method provided by the present invention.
  • FIG. 7 is a flow chart of another motor starting method provided by the present invention.
  • a first embodiment of the present invention provides a motor device 30 including a motor 31, a motor drive module 33, and a central control module 35.
  • the motor drive module 33 is coupled to the motor 31 and the central control module 35.
  • the temperature at which the motor 31 is placed is referred to as the ambient temperature.
  • the motor 31 is started at the starting temperature with the rated starting current of the motor 31, and the state in which the motor 31 is started and operated at the starting temperature is a normal starting.
  • the starting temperature is the ambient temperature at which the motor 31 starts operating at a rated starting current and the operating environment in which the motor 31 is located.
  • the central control module 35 controls the motor driving module 33 to deliver the motor driving current II to the motor 31.
  • the value of the motor drive current II is less than the value of the rated start current 10.
  • the motor 31 is a hydraulic motor, and the starting temperature of the motor 31 is greater than or equal to 5 °C. It can be understood that the starting temperature of the motor 31 is not limited to 5 ° C or more, and varies depending on the actual condition of the motor 31.
  • the motor 31 drives the current II and maintains a period of time to preheat the motor 31, i.e., the electrical energy is converted to thermal energy until the temperature of the motor 31 rises to a predetermined temperature.
  • the preset temperature is a starting temperature of the motor 31 under normal startup.
  • the central control module 35 controls the motor drive module 33 to deliver a rated starting current 10 to the motor 31, and the motor 31 starts to operate.
  • the motor drive module 33 is supplied to the inter-turn section of the rated start current 10 of the motor 31, that is, the section of T2-T3 is set as the second drive inter-turn section.
  • the central control module 35 controls the motor driving module 33 to be supplied to the motor 31 - the operating current 12 jobs.
  • the value of the operating current 12 is greater than the value of the motor drive current II and less than the rated starting current 10.
  • preheating is performed by supplying the motor 31 with a motor driving current II lower than the rated starting current 10, Increasing the temperature of the motor 31 to a starting temperature at which the motor 31 is normally started, and thereafter delivering the rated starting current 10 to the motor 31 to activate and operate the motor 31, thereby enabling the protection of the motor 31
  • the motor 31 extends the life of the motor 31.
  • the motor device 30 can be applied to a device, device or other application using a motor such as a color wheel device of a projection device, a vacuum cleaner or the like.
  • a second embodiment of the present invention also provides a motor device.
  • the motor device is substantially the same as the motor device 30 provided by the first embodiment of the present invention, except that, as shown in FIG. 3, the ambient temperature at which the motor 31 operates is lower than the preset temperature, that is, the starting temperature.
  • the motor drive module 33 supplies a motor drive current to the motor 31, and the motor drive current value is the same as the value of the rated start current 10 until the motor 31 The temperature rises to the starting temperature at which the motor 31 is normally started, and the motor 31 is activated. After the operating speed of the motor 31 reaches a certain value, or within a predetermined fixed speed range, in other words, after the operating speed of the motor 31 is stabilized, the motor driving module 33 is directed to the motor 31. The working current 12 is delivered.
  • a third embodiment of the present invention provides a color wheel device 40 including a color wheel 41 and a motor unit 45.
  • the color wheel device 40 can be applied in the fields of laser source illumination, projection, optical illumination, and optical storage.
  • the motor unit 45 is coupled to the color wheel 41 to drive the color wheel 41 for periodic motion.
  • the color wheel 41 is a fluorescent color wheel.
  • the color wheel 41 is substantially disk-shaped, and includes at least two color regions, such as red, blue, and green regions, which are sequentially disposed along the circumferential direction of the color wheel 41, to be illuminated by an excitation light source (not shown).
  • the color wheel 41 is capable of periodically emitting red light, blue light, and green light.
  • the color wheel 41 is not limited to a fluorescent color wheel, and the color wheel 41 may also be a filter wheel.
  • a filter material can be provided to allow light of the desired wavelength to pass.
  • the color wheel 41 is not limited to a disk shape, and may be a belt-like structure or a cylindrical structure that can be periodically rotated, which can emit light of different colors in order.
  • the motor device 45 includes a motor 451, a motor drive module 453, a central control module 455, and a temperature detecting module 457.
  • the motor drive module 453 is for supplying current to the motor 451.
  • the central control module 455 is coupled to the motor drive module 453 and the temperature detection module 457.
  • the temperature detecting module 457 is configured to detect an ambient temperature at which the motor 451 operates and feed back to the central control module 455.
  • the temperature at which the motor 451 is placed is referred to as the ambient temperature.
  • the motor 451 is started at the starting temperature with the rated starting current of the motor 451, and the state in which the motor 451 is started at the starting temperature is a normal starting.
  • the starting temperature is the ambient temperature at which the motor 451 is started to operate at the rated starting current and the operating environment in which the motor 451 is located.
  • the motor 451 is a hydraulic motor, and the starting temperature of the motor 451 is greater than or equal to 5 °C. It can be understood that the starting temperature of the motor 451 is not limited to 5 ° C or more, and varies depending on the actual condition of the motor 451.
  • the central control module 455 controls the motor drive module 453 to supply the motor 451 to a rated starting current to activate the motor 451. And run.
  • the preset temperature is the starting temperature.
  • the central control module 455 controls the motor drive module 453 to supply the motor 451 to a preset motor drive current.
  • the motor drive current value is smaller than the rated start current value.
  • the motor drive module 453 delivers the motor drive current to the motor 451 for a period of time to raise the ambient temperature at which the motor 451 operates to the start temperature of the motor 451.
  • the motor drive current is driven to drive the length of the motor 451 to be the first drive inter-turn.
  • the ambient temperature of the motor 451 is raised to a preset temperature of the motor 451, and the central control module 455 controls the motor driving module 453 to be delivered to the
  • the motor 451 is rated starting current, and the motor 451 is driven to operate.
  • the running speed of the motor 451 reaches a predetermined value, or is within a predetermined fixed speed range. In other words, after the running speed of the motor 451 is stabilized, the central control module 455 controls the motor driving module 453 to transmit.
  • the motor 451 is operated with a current.
  • the motor device 45 further includes a storage module 459.
  • the storage module 459 is connected to the central control module 455 for storing different ambient temperatures corresponding to preset first driving segments. Specifically, in the horse When the ambient temperature of the 451 is lower than the preset temperature, when the motor 451 is started, the temperature detecting module 457 detects that the ambient temperature of the motor 451 is C1, and the temperature detecting mode The group 4 57 feeds back the ambient temperature C1 to the central control module 455, and the central control module 455 searches the storage module 459 to confirm the preset first corresponding to the ambient temperature C1.
  • the drive segment is tl.
  • the central control module 455 controls the motor drive module 453 to deliver the motor drive current to the motor 45 1 for preheating in the first drive inter-turn segment t1. After the ambient temperature of the motor 451 reaches the preset temperature, the central control module 455 controls the motor drive module 453 to deliver the rated starting current to the motor 451, and activates the motor 451.
  • the motor 451 is initially operated.
  • the central control module 455 controls the motor.
  • the driving module 453 sends a preset motor driving current to the motor 451 to preheat the motor 451, and the temperature detecting module 457 detects the ambient temperature of the motor 451 and feeds back to the middle.
  • Control module 455. When the temperature detecting module 457 detects that the temperature of the working environment of the motor 451 reaches a preset temperature, the central control module 455 controls the motor driving module 453 to deliver the rated starting to the motor 451. Current, the motor 451 is started, and the motor 451 is initially operated.
  • the motor drive current value is equal to the rated start current value of the motor.
  • the storage module 459 can be disposed on the projection device 100, and can also be an external component, such as a device or device such as a mobile hard disk connectable to the storage module 459.
  • the module or device that provides thermal energy to the motor 451 is configured as a heating unit, such as a light source, a motor drive module 453, or other heating unit.
  • the temperature detection module 457 can be omitted.
  • a fourth embodiment of the present invention provides a projection apparatus 100.
  • the projection device 100 includes a light source device 10, a color wheel device 40 provided by the third embodiment, and a light modulation device 60.
  • the light source device 10 emits light.
  • the color wheel device 40 is located in a transmission path of the light source device 10 to emit light to emit light of different colors under the illumination of the light source device 10.
  • the light modulating device 60 is located in a transmission path of the light emitted by the color wheel device 40, and the light modulating device 60 can perform image modulation on the light emitted from the color wheel 41 according to the light modulation signal.
  • the projection device 100 also includes other necessary or unnecessary The structure, such as the image processing module, the projection lens, etc., will not be described here.
  • the light source device 10 includes a light source 11 and a light source driving module 13 for driving the light source 11.
  • the light source 11 is an excitation light source for emitting excitation light, such as blue excitation light, and the light source 11 may be a blue laser light source (such as a blue laser or a blue laser diode). In a modified embodiment, the light source 11 may also be a light source of other colors, and is not limited to a blue light source.
  • the light source 11 may be an ultraviolet laser source (such as an ultraviolet laser or an ultraviolet laser diode). Thereby ultraviolet excitation light is emitted.
  • the light source 11 is preferably a semiconductor laser light source for providing high-intensity excitation light.
  • the light source 11 is composed of a laser array or a diode array.
  • the color wheel 41 periodically moves, under the illumination of the light source 11, to emit light of different colors in order.
  • the light source driving module 13 is connected to the central control module 455. Specifically, when the ambient temperature of the operation of the motor 451 is lower than the starting temperature of the operation of the motor 451, if the motor 451 is to be activated, the light source driving module 13 provides a predetermined light source to the light source 11.
  • the driving current drives the light source 11 to emit light in a heating zone, and the temperature of the whole of the projection device 100 rises, and the motor 451 is also preheated.
  • the light source driving current for preheating the motor 451 ⁇ is referred to as a preheating light source driving current
  • the normal working ⁇ light source driving current is referred to as a working light source driving current
  • the normal operation ⁇ is the projection device 100 .
  • the image can be projected normally.
  • the preset light source driving current is smaller than the light source driving current that the motor 451 drives the color wheel 41 to move, the light source 11 illuminates the color wheel 41, that is, the preheating light source driving current for preheating the motor 451
  • the working light source driving current that is less than the normal operation of the light source 11 is driven, thereby avoiding the sudden change of the temperature of the whole of the projection device 100, thereby causing damage to the components of the projection device 100, for example, avoiding burning the color wheel 41.
  • the temperature detecting module 457 detects the ambient temperature of the operation of the motor 451 and feeds back to the central control module 455.
  • the central control module 455 controls the motor drive module 453 to supply the motor 451 to the rated starting current, and the motor 451 is driven to operate.
  • the central control module 455 controls the light source driving module 13 to supply the working light source driving current to the light source 11.
  • the preset temperature is a starting temperature of the motor 451.
  • the color wheel 41 is driven to move. The color wheel 41 is periodically moved, and light of different colors is sequentially emitted under the illumination of the light source 11.
  • the central control module 455 controls the operating current supplied by the motor drive module 453 to the motor 451 within a certain range of rotational speeds, that is, after the operating speed of the motor 451 is stabilized.
  • the motor unit 45 further includes a storage module 459.
  • the storage module 459 is connected to the central control module 455 for storing preset heating zones corresponding to different ambient temperatures, thereby facilitating control of the starting of the motor 451.
  • the preset heating interval corresponding to C1 is G1
  • the preset heating interval corresponding to C2 is G2
  • the ambient temperature is preset heating corresponding to C3.
  • the inter-segment is G3
  • the ambient temperature is the preset heating interval corresponding to CN is GN.
  • the preheating light source driving currents are all the same value in the corresponding heating enthalpy segments.
  • the temperature detecting module 457 detects that the ambient temperature of the motor 451 is C2.
  • the ambient temperature C2 is fed back to the central control module 455, and the central control module 455 searches the storage module 459 to confirm the preset heating interval corresponding to the ambient temperature C2.
  • the central control module 455 controls the light source driving module 13 to drive the light source 11 to emit light.
  • the central control module 455 controls the motor driving module 453 to supply the rated starting current of the motor 451, and starts the The motor 451 starts to operate, and the central control module 455 controls the light source driving module 13 to supply the working light source driving current to the light source 11.
  • the preheating light source driving currents are the same, which facilitates control.
  • the motor device 45 further includes a storage module 459.
  • the storage module 459 is connected to the central control module 455 for storing preset preheating light source driving currents corresponding to different ambient temperatures.
  • the driving current values of the preheating light sources are different at different ambient temperatures, and the corresponding heating turns are equal.
  • the preset preheating light source driving current corresponding to C1 is J1
  • the ambient temperature is C2
  • preset preheating light source driving current is J2
  • the ambient temperature is a preset corresponding to C3.
  • the preheating light source driving current is J3....
  • the ambient temperature is a preset preheating light source driving current corresponding to CN is JN.
  • the temperature detecting module 457 detects that the ambient temperature of the motor 451 is C1.
  • the ambient temperature C1 is fed back to the central control module 455, and the central control module 455 searches the storage module 459 to confirm the preset preheating light source driving corresponding to the ambient temperature C1.
  • the current is Jl.
  • the central control module 455 controls the light source driving module 13 to drive the light source 11 to emit light by preheating the light source driving current J1.
  • the temperature of the working environment of the motor 451 reaches a preset temperature, and the central control module 455 controls the motor driving module 453 to be sent to the motor 451 to be started.
  • the motor 451 is started to operate, and the central control module 455 controls the light source driving module 13 to supply the working light source driving current to the light source 11.
  • the preheating heating crucible sections are the same, which facilitates control.
  • the motor unit 45 further includes a storage module 459.
  • the storage module 459 is connected to the central control module 455 for storing the ambient temperature corresponding to the preset heating interval and the preheating light source driving current, that is, the central control module 455 adjusts the preset heating according to the ambient temperature setting.
  • the inter-turn and preheating light source drive current is connected to the central control module 455 for storing the ambient temperature corresponding to the preset heating interval and the preheating light source driving current, that is, the central control module 455 adjusts the preset heating according to the ambient temperature setting.
  • the inter-turn and preheating light source drive current is connected to the central control module 455 for storing the ambient temperature corresponding to the preset heating interval and the preheating light source driving current.
  • the preset preheating source driving current corresponding to C1 is J1 and the preset heating interval is T1;
  • the ambient temperature is C2 corresponding preset preheating source driving current is J2 and
  • the preset heating interval is T2
  • the ambient temperature is C3 corresponding preset preheating source driving current is J3
  • the preset heating interval is T3...
  • the preset preheating light source corresponding to the CN is JN and the preset heating interval is TN.
  • the temperature detecting module 457 detects that the ambient temperature of the motor 451 is C1.
  • the ambient temperature C1 is fed back to the central control module 45 5 , and the central control module 455 searches the storage module 459 to confirm the preset heating time corresponding to the ambient temperature C1.
  • the segment is T1 and the preset preheating source driving current is Jl.
  • the central control module 455 controls the light source driving module 13 to drive the light source 11 to emit light by preheating the light source driving current J1, and the light source 11 emits light into a heating interval T1.
  • the central control module 455 controls the motor drive module 453 to deliver the rated starting current to the motor 451, and activates the motor 451, the motor.
  • the central control module 455 controls the light source driving module 13 to supply the working light source driving current to the light source 11.
  • different ambient temperatures are different for the preheating heating section and the preheating source driving current, and the starting of the motor 451 can be flexibly controlled.
  • the storage module 459 can be disposed on the projection device 100, and can also be an external component, such as a device or device such as a mobile hard disk connectable to the storage module 459.
  • the module or device that provides thermal energy to the motor 451 is configured as a heating unit, such as a light source device 10, a motor drive module 453, or other heating unit.
  • the heating unit may be disposed at A heater external to the projection device 100.
  • the light source 11 can be a heat source, and the light source 11 is driven to generate heat, thereby increasing the ambient temperature at which the motor operates.
  • the light source 11 can be a cold light source, and the light source 11 is driven to emit light to illuminate the color wheel.
  • the color wheel 41 emits light to thereby increase the ambient temperature at which the motor operates.
  • the present invention also provides a motor starting method applied to a color wheel device, the color wheel device including a color wheel, a motor, and a drive control device.
  • the drive control device comprises a motor drive module, a central control module and a temperature detection module.
  • the motor drive module is configured to provide current to the motor.
  • the central control module is coupled to the motor drive module and the temperature detection module.
  • the temperature detecting module is configured to detect an ambient temperature of the motor operation and feed back to the central control module.
  • a motor starting method which includes the following steps:
  • Step 601 When the ambient temperature of the motor operation is lower than a preset temperature, the motor heat energy is supplied to preheat the motor to raise the temperature of the motor to the preset temperature.
  • the ambient temperature of the motor operation is detected by the temperature detecting module and fed back to the central control module.
  • the ambient temperature of the operation of the motor is lower than the preset temperature, it is not necessary to detect the ambient temperature at which the motor operates. That is, there is no strict limit on how to determine whether the ambient temperature at which the motor operates is lower than the preset temperature.
  • Step 602 providing a rated starting current to the motor to drive the motor to start and run.
  • the motor starting method includes the following steps:
  • Step 701 Detect an ambient temperature at which the motor operates.
  • Step 702 Compare the ambient temperature with a preset temperature, and determine whether the ambient temperature is lower than the preset temperature. If yes, go to step 703. Otherwise, go to step 704.
  • the state in which the motor is started at the startup temperature is a normal startup.
  • the starting temperature is an ambient temperature at which the motor starts operating at a rated starting current and the working environment in which the motor is located.
  • the temperature at which the ambient temperature of the working environment in which the motor is located is lower than the starting temperature is referred to as low temperature.
  • the preset temperature is an activation temperature of the motor.
  • the motor drive current value is less than the value of the rated start current.
  • the motor is a hydraulic motor; a starting temperature of the motor Greater than or equal to 5 ° C, the low temperature is less than 5 ° C. It can be understood that the starting temperature of the motor is not limited to be greater than or equal to 5 ° C, and the low temperature is not limited to less than 5 ° C, and varies according to the actual condition of the motor.
  • step 703 detecting, by the temperature detecting module, an ambient temperature of the motor operation and feeding back to the central control module, wherein the central control module detects an ambient temperature and a preset temperature detected by the temperature detecting module For comparison, if the central control module determines that the ambient temperature is lower than the preset temperature, step 703 is performed; otherwise, step 704 is performed.
  • Step 703 supplying thermal energy to the motor to preheat the motor to raise the temperature of the motor to a preset temperature.
  • the motor drive module controls, by the central control module, the motor drive module to deliver a predetermined motor drive current to the motor.
  • the motor drive current value is less than the rated start current value.
  • the motor drive module supplies the motor drive current to the motor for a period of time to raise the ambient temperature at which the motor operates to a preset temperature.
  • the motor drive current is driven to drive the length of the motor to be the first drive inter-turn. After preheating through the first drive inter-turn, the ambient temperature at which the motor operates increases to the start temperature of the motor.
  • the motor control module controls the motor drive module to deliver a predetermined motor drive current to the motor through the central control module.
  • the motor drive current value is equal to the rated start current value until the temperature of the motor rises to a start temperature at which the motor is normally started, and the motor is activated. After the running speed of the motor is stabilized, the central control module controls the motor driving module to supply the operating current of the motor.
  • the drive control device further includes a storage module.
  • the storage module is connected to the central control module, and is configured to store a preset first driving segment corresponding to an ambient temperature. Specifically, when the ambient temperature of the motor is lower than the preset temperature, when the motor ⁇ needs to be activated, the temperature detecting module detects that the ambient temperature of the motor is C1 and The ambient temperature C1 is fed back to the central control module, and the central control module performs a search in the storage module to confirm that the preset first driving interval corresponding to the ambient temperature C1 is T1. The central control module controls the motor drive module to provide the motor drive current to the motor for preheating in the first drive port segment T1.
  • the central control module controls the motor driving module. Delivering a predetermined motor drive current to the motor to preheat the motor, the temperature detecting module detecting the motor The ambient temperature of the operation is fed back to the central control module until the ambient temperature rises to the preset temperature.
  • the color wheel device is applied to a projection device.
  • the projection apparatus includes a light source device, the above color wheel device, and a light modulation device.
  • the light source device emits light.
  • the color wheel device is located in a transmission path of the light emitted from the light source to emit light of different colors under illumination of the light source device.
  • the light modulating device is located in a transmission path of the light emitted by the color wheel device, and the light modulating device is capable of image modulating light emitted by the color wheel according to the light modulation signal.
  • the projection device also includes other necessary or non-essential structures, such as an image processing module, a projection lens, and the like, which are not described herein.
  • the light source device includes a light source and a light source driving module for driving the light source.
  • the light source driving module is connected to the central control module.
  • the light source driving module provides the light source with a predetermined heating light source driving current to drive the light source
  • the heating interval is illuminated, the temperature of the whole of the projection device is increased, and the motor is also preheated.
  • Step 704 providing a rated starting current to the motor to drive the motor to start running.
  • the central control module controls the motor drive module to provide a rated starting current to the motor, and drives the motor to operate, the color Wheel exercise.
  • the motor starting method is not limited to use with a color wheel device, but may be applied to other devices, devices or applications that employ a motor.
  • the step 701, the step 702 may be omitted, that is, the ambient temperature of the operation of the motor has been determined to be lower than the preset temperature.
  • step 704 may be directly performed, or other steps may be performed to drive the motor to start running, or perform other steps before executing.
  • Step 704 is to drive the motor to start operation, that is, in a case where the ambient temperature is not lower than the preset temperature, the manner in which the motor is started is not strictly limited.
  • a motor starting method includes the following steps:
  • Step 1 detecting the ambient temperature of the motor operation, when the ambient temperature is lower than the preset temperature ⁇ , step 2 is performed, otherwise step 3 is performed; [0116] Step 2, providing thermal energy to the motor to preheat the motor to raise the temperature of the motor to a preset temperature;
  • Step 3 providing a rated starting current to the motor to drive the motor to start and operate.
  • the present invention provides a drive control device, a color wheel device, a projection device, and a motor starting method.
  • the motor needs to be activated, and the temperature of the motor is raised to the start of the motor by preheating the thermal energy supplied to the motor.
  • the temperature is normally started, and the viscosity of the oil of the motor is also reduced to a normal viscosity, so that the high current of the motor higher than the rated starting current is not required to drive the motor to start and operate, thereby enabling Protecting the motor, extending the service life of the motor, and extending the service life of the color wheel device

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Abstract

一种马达（31）启动方法，其包括以下步骤：在马达（31）工作的环境温度低于预设温度时，提供给马达（31）热能以对马达（31）进行预热，使马达（31）的温度上升至预设温度（步骤601）；提供给马达（31）额定启动电流，以驱动马达（31）启动并运转（步骤602）。该方法还提供马达装置（30）、色轮装置（40）及投影设备（100）。

Description

马达启动方法、 马达装置、 色轮装置及投影设备 技术领域
[0001] 本发明涉及投影技术领域， 特别涉及一种马达启动方法、 驱动控制装置、 色轮 装置及相关投影设备。
背景技术
[0002] 色轮装置， 例如荧光色轮， 在激光光源照明、 投影、 光学照排以及光存储等领 域中应用广泛。 色轮装置的马达通常采用油压马达。 所述油压马达以其额定启 动电流启动吋的温度为启动温度 （例如一般限制在≥5°C) 。 所述油压马达在低 于所述启动温度的环境中吋， 油的粘稠度会增大， 如果要启动所述油压马达， 则需要大大高于所述额定启动电流的高电流。
技术问题
[0003] 然而， 通过高电流启动所述马达容易造成损坏， 影响所述马达及色轮装置的使 用寿命。
问题的解决方案
技术解决方案
[0004] 为解决上述问题， 有必要提供一种马达启动方法、 马达装置、 色轮装置及相关 投影设备。
[0005] 一种马达启动方法， 其包括以下步骤：
[0006] 在所述马达工作的环境温度低于预设温度吋， 提供给所述马达热能以对所述马 达进行预热， 使所述马达的温度上升至所述预设温度；
[0007] 提供给所述马达额定启动电流， 以驱动所述马达启动并运转。
[0008] 进一步地， 通过向所述马达输入马达驱动电流以提供给所述马达热能对所述马 达进行预热；
[0009] 其中， 所述马达驱动电流值不大于所述马达的额定启动电流值。
[0010] 进一步地， 通过输入光能以提供给所述马达热能对所述马达进行预热。
[0011] 进一步地， 所述提供给所述马达热能以对所述马达进行预热的步骤前， 所述马 达启动方法还包括， 检测所述马达工作的环境温度的步骤， 当所述环境温度低 于所述预设温度吋， 则执行所述提供给所述马达热能以对所述马达进行预热的 步骤。
[0012] 进一步地， 所述马达在运转后的转速达到稳定之后， 提供给所述马达一小于所 述额定启动电流值的工作电流。
[0013] 一种马达启动方法， 其包括以下步骤：
[0014] 步骤 1， 检测所述马达工作的环境温度， 当所述环境温度低于预设温度吋， 执 行步骤 2， 否则执行步骤 3;
[0015] 步骤 2， 提供给所述马达热能以对所述马达进行预热， 使所述马达的温度上升 至预设温度；
[0016] 步骤 3， 提供给所述马达额定启动电流， 以驱动所述马达启动并运转。
[0017] 一种马达装置， 其包括马达、 马达驱动模组及中控模组， 所述马达驱动模组与 所述中控模组及所述马达连接， 当所述马达工作的环境温度低于预设温度需进 行启动吋， 通过一供热单元提供给所述马达热能以对所述马达进行预热， 使所 述马达的温度上升至所述预设温度。
[0018] 进一步地， 所述供热单元为所述马达驱动模组， 所述马达驱动模组通过向所述 马达输入马达驱动电流提供给所述马达热能以对所述马达进行预热；
[0019] 其中， 所述马达驱动电流值小于或等于所述马达的额定启动电流值。
[0020] 进一步地， 所述供热单元通过向所述马达输入光能提供给所述马达热能以对所 述马达进行预热。
[0021] 进一步地， 所述马达装置还包括与所述中控模组连接的温度检测模组， 所述温 度检测模组用于检测所述马达工作的环境温度并反馈给所述中控模组；
[0022] 当所述环境温度低于所述预设温度吋， 所述中控模组控制所述马达驱动模组输 送给所述马达一马达驱动电流。
[0023] 进一步地， 所述温度检测模组实吋向所述中控模组反馈所述环境温度， 当所述 环境温度上升至所述预设温度吋， 所述中控模组控制所述马达驱动模组向所述 马达提供所述额定启动电流驱动所述马达启动运转； 或者， 所述马达装置还包 括存储模组， 所述存储模组存储有不同的环境温度及其对应的预设吋间段， 所 述中控模组依据所述温度检测模组检测到的环境温度于所述存储模组中査找确 认对应的预设第一驱动吋间段， 并按照所述预设的第一驱动吋间段的吋长控制 所述马达驱动模组向所述马达输送所述马达驱动电流。
[0024] 进一步地， 所述马达在其运转速度稳定后的工作电流值小于所述额定启动电流 值。
[0025] 一种色轮装置， 其包括色轮及如上所述的马达装置， 所述马达装置的马达与所 述色轮连接。
[0026] 一种投影设备， 其包括如上所述的色轮装置、 光源装置及光调制装置， 所述色 轮设置在所述光源装置出射的光路上， 所述光调制装置在所述色轮装置出射相 应颜色光的吋段内进行调制。
[0027] 进一步地， 所述光源装置包括光源及光源驱动模组， 所述供热单元为所述光源 装置， 当所述马达工作的环境温度低于预设温度需进行启动吋， 通过所述光源 驱动模组向所述光源输入光源驱动电流使所述光源发光， 以提供给所述马达热 能对所述马达进行预热。
发明的有益效果
有益效果
[0028] 与现有技术相比较， 本发明提供的马达装置、 色轮装置、 投影设备及马达启动 方法， 在所述马达工作的环境温度低于预设温度， 需对所述马达进行启动吋， 通过对所述马达提供热能进行预热， 使所述环境温度上升至所述预设温度进行 正常启动， 所述马达的油的粘稠度亦降低至正常粘稠度， 这样不需要提供给所 述马达高于额定启动电流的高电流就能驱动所述马达启动并运转， 进而能够保 护所述马达， 延长了所述马达的使用寿命， 也能够延长色轮装置的使用寿命。 对附图的简要说明
附图说明
[0029] 图 1是本发明第一、 二实施方式提供的马达装置的功能模组示意图；
[0030] 图 2是本发明第一实施方式的马达的电流-吋间关系图；
[0031] 图 3是本发明第二实施方式的马达的电流-吋间关系图；
[0032] 图 4是本发明第三实施方式提供的色轮装置的功能模组示意图； [0033] 图 5是本发明第四实施方式提供的投影设备的功能模组示意图；
[0034] 图 6是本发明提供的马达启动方法的流程图；
[0035] 图 7是本发明提供的另一马达启动方法的流程图。
[0036]
[0037] 主要元件符号说明
[0038] 马达装置—— 30、 45
[0039] 马达—— 31、 451
[0040] 马达驱动模组—— 33、 453
[0041] 中控模组—— 35、 455
[0042] 额定启动电流—— 10
[0043] 马达驱动电流—— II
[0044] 工作电流—— 12
[0045] 色轮装置—— 40
[0046] 色轮—— 41
[0047] 温度检测模组—— 457
[0048] 存储模组—— 459
[0049] 投影设备—— 100
[0050] 光源装置—— 10
[0051] 光源—— 11
[0052] 光源驱动模组—— 13
[0053] 光调制装置—— 60
[0054]
[0055] 如下具体实施方式将结合上述附图进一步说明本发明。
实施该发明的最佳实施例
本发明的最佳实施方式
[0056] 下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是全部 的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有做出创造性劳 动前提下所获得的所有其他实施例， 都属于本发明保护的范围。 在不冲突的情 况下， 下述的实施例及实施例中的特征可以相互组合。
[0057] 需要说明的是， 在本发明中， 当一个组件被认为是与另一个组件 "相连 "吋， 它 可以是与另一个组件直接相连， 也可以是通过居中组件与另一个组件间接相连
[0058] 除非另有定义， 本文所使用的所有的技术和科学术语与属于本发明的技术领域 的技术人员通常理解的含义相同。 本文中在本发明的说明书中所使用的术语只 是为了描述具体的实施例的目的， 不是旨在于限制本发明。
[0059] 第一实施方式
[0060] 请参阅图 1所示， 本发明第一实施方式提供一种马达装置 30， 其包括马达 31、 马达驱动模组 33及中控模组 35。 所述马达驱动模组 33与所述马达 31及所述中控 模组 35连接。
[0061] 将所述马达 31所处工作环境的温度称为环境温度。 所述马达 31在启动温度下以 所述马达 31的额定启动电流进行启动， 将所述马达 31在启动温度下进行启动运 转的状态为正常启动。 所述启动温度即为所述马达 31以额定启动电流启动运转 吋所述马达 31所处工作环境的环境温度。 所述环境温度低于所述启动温度吋， 所述中控模组 35控制所述马达驱动模组 33输送马达驱动电流 II至所述马达 31。 所 述马达驱动电流 II的值小于所述额定启动电流 10的值。 本实施方式中， 所述马达 31为油压马达， 所述马达 31的启动温度大于或等于 5°C。 可以理解， 所述马达 31 的启动温度不限于大于或等于 5°C， 依据所述马达 31的实际情况进行变化。
[0062] 请同吋结合图 2， 设 T0-T2的吋间段为第一驱动吋间段， 在此吋间段， 所述马达 31未进行运转， 所述马达驱动模组 33提供给所述马达 31马达驱动电流 II并维持一 段吋间以对所述马达 31进行预热， 即电能转换为热能， 直至所述马达 31的温度 上升至一预设温度。 本实施方式中， 所述预设温度为所述马达 31正常启动下的 启动温度。 当所述马达 31工作的环境温度上升至预设温度吋， 所述中控模组 35 控制所述马达驱动模组 33向所述马达 31输送额定启动电流 10， 所述马达 31启动运 转。 将所述马达驱动模组 33提供给所述马达 31额定启动电流 10的吋间段， 即 T2-T 3的吋段设为第二驱动吋间段。 当所述马达 31的运转速度达到定值， 或为预设的 一定转速范围内， 换句话说为所述马达 31的运转速度稳定吋， 即 T3吋刻， 所述 中控模组 35控制所述马达驱动模组 33提供给所述马达 31—工作电流 12进行工作。 所述工作电流 12的值大于马达驱动电流 II的值， 且小于所述额定启动电流 10。
[0063] 在所述马达 31工作的环境温度低于预设温度 （启动温度） 的情况下， 通过对所 述马达 31提供一低于所述额定启动电流 10的马达驱动电流 II进行预热， 使所述马 达 31的温度上升至所述马达 31正常启动下的启动温度， 其后再向所述马达 31输 送所述额定启动电流 10使所述马达 31启动并进行运转， 进而能够保护所述马达 31 ， 延长了所述马达 31的使用寿命。
[0064] 所述马达装置 30能够应用于投影设备的色轮装置、 吸尘器等使用马达的装置、 设备或其它应用场合中。
[0065] 第二实施方式
[0066] 本发明第二实施方式亦提供一种马达装置。 所述马达装置与本发明第一实施方 式提供的马达装置 30大致相同， 其不同在于， 请参阅图 3所示， 在所述马达 31工 作的环境温度低于所述预设温度， 即启动温度情况下， 在所述马达 31启动及运 转前， 所述马达驱动模组 33向所述马达 31输送马达驱动电流， 所述马达驱动电 流值与额定启动电流 10的值相同， 直至所述马达 31的温度上升至所述马达 31正常 启动下的启动温度， 所述马达 31被启动。 当所述马达 31的运转速度达到一定值 后， 或为预设的一定转速范围内， 换句话说为所述马达 31的运转速度达到稳定 后， 所述马达驱动模组 33向所述马达 31输送工作电流 12。
[0067] 第三实施方式
[0068] 请参阅图 4所示， 本发明第三实施方式提供一种色轮装置 40， 其包括色轮 41及 马达装置 45。 所述色轮装置 40能够在激光光源照明、 投影、 光学照排以及光存 储等领域中应用。 所述马达装置 45与所述色轮 41连接， 以驱动所述色轮 41进行 周期性运动。
[0069] 本实施方式中， 所述色轮 41为荧光色轮。 所述色轮 41大致呈圆盘状， 其包括沿 色轮 41周向依次设置的至少两个颜色区域， 如红、 蓝、 绿区域， 以在激发光源 (图未示） 的照射下， 所述色轮 41能够周期性地出射红光、 蓝光、 绿光。
[0070] 可以理解， 所述色轮 41不限定为荧光色轮， 所述色轮 41还可以为滤光轮， 其上 可以设置滤光材料， 以让所需波长的光能够通过。 所述色轮 41不限定为圆盘状 ， 其也可以为带状结构， 或设置成能够周期性转动的筒状结构， 其能够依吋序 发出不同颜色的光。
[0071] 所述马达装置 45包括马达 451、 马达驱动模组 453、 中控模组 455及温度检测模 组 457。 所述马达驱动模组 453用于向所述马达 451提供电流。 所述中控模组 455 与所述马达驱动模组 453及所述温度检测模组 457连接。 所述温度检测模组 457用 于检测所述马达 451工作的环境温度并反馈给所述中控模组 455。
[0072] 将所述马达 451所处工作环境的温度称为环境温度。 所述马达 451在启动温度下 以所述马达 451的额定启动电流进行启动， 将所述马达 451在启动温度下进行启 动运转的状态为正常启动。 所述启动温度即为所述马达 451以额定启动电流启动 运转吋所述马达 451所处工作环境的环境温度。 本实施方式中， 所述马达 451为 油压马达， 所述马达 451的启动温度大于或等于 5°C。 可以理解， 所述马达 451的 启动温度不限于大于或等于 5°C， 依据所述马达 451的实际情况进行变化。
[0073] 当所述环境温度大于或等于一预设温度吋， 所述中控模组 455控制所述马达驱 动模组 453输送给所述马达 451—额定启动电流， 以使所述马达 451启动并运转。 所述预设温度为所述启动温度。 当所述环境温度小于所述预设温度， 所述中控 模组 455控制所述马达驱动模组 453输送给所述马达 451—预设的马达驱动电流。
[0074] 本实施方式中， 所述马达驱动电流值小于所述额定启动电流值。 所述马达驱动 模组 453向所述马达 451输送所述马达驱动电流并维持一段吋间， 以使所述马达 4 51工作的环境温度上升至所述马达 451的启动温度。 设所述马达驱动电流驱动所 述马达 451的吋长为第一驱动吋间段。 经所述第一驱动吋间段预热后， 所述马达 451工作的环境温度上升至所述马达 451的预设温度， 所述中控模组 455控制所述 马达驱动模组 453输送给所述马达 451—额定启动电流， 所述马达 451被驱动运转 。 所述马达 451运转速度达到定值， 或为预设的一定转速范围内， 换句话说为所 述马达 451的运转速度稳定后， 所述中控模组 455控制所述马达驱动模组 453输送 给所述马达 451工作电流。
[0075] 所述马达装置 45还包括存储模组 459。 所述存储模组 459与所述中控模组 455连 接， 用于存储不同的环境温度对应预设的第一驱动吋间段。 具体地， 在所述马 达 451所处环境温度低于所述预设温度情况下， 当需启动所述马达 451吋， 所述 温度检测模组 457检测到所述马达 451工作的环境温度为 C1， 所述温度检测模组 4 57将所述环境温度 C1反馈给所述中控模组 455， 所述中控模组 455于所述存储模 组 459中进行査找， 确认所述环境温度 C1对应的预设的第一驱动吋间段为 tl。 所 述中控模组 455控制所述马达驱动模组 453于所述第一驱动吋间段 tl向所述马达 45 1输送所述马达驱动电流进行预热。 当所述马达 451工作的环境温度达到所述预 设温度后， 所述中控模组 455控制所述马达驱动模组 453向所述马达 451输送所述 额定启动电流， 启动所述马达 451， 所述马达 451幵始运转。
[0076] 在一可变更实施例中， 在所述马达 451所处环境温度低于所述预设温度情况下 ， 当需启动所述马达 451吋， 所述中控模组 455控制所述马达驱动模组 453向所述 马达 451输送预设的马达驱动电流对所述马达 451进行预热， 所述温度检测模组 4 57实吋检测所述马达 451工作的环境温度并反馈给所述中控模组 455。 当所述温 度检测模组 457检测到所述马达 451的工作环境的温度达到预设温度吋， 所述中 控模组 455控制所述马达驱动模组 453向所述马达 451输送所述额定启动电流， 启 动所述马达 451， 所述马达 451幵始运转。
[0077] 可以理解， 所述马达驱动电流值与所述马达的额定启动电流值相等。
[0078] 可以理解， 所述存储模组 459可以设置于所述投影设备 100， 其也可以为外部元 件， 如可与所述存储模组 459连接的移动硬盘等装置或设备。
[0079] 可以理解， 将向所述马达 451提供热能的模组或装置设为供热单元， 如发光的 光源， 马达驱动模组 453， 或其它的供热单元。
[0080] 可以理解， 可以省略温度检测模组 457。
[0081] 第四实施方式
[0082] 请参阅图 5所示， 本发明第四实施方式提供一种投影设备 100。 所述投影设备 10 0包括光源装置 10、 所述第三实施方式提供的色轮装置 40以及光调制装置 60。 所 述光源装置 10出射光。 所述色轮装置 40位于所述光源装置 10出射光的传输路径 中， 以在所述光源装置 10的照射下出射不同颜色的光。 所述光调制装置 60位于 所述色轮装置 40出射光的传输路径中， 所述光调制装置 60能够依据光调制信号 对所述色轮 41出射的光进行图像调制。 所述投影设备 100还包括其它必要或非必 要结构， 如图像处理模组、 投影镜头等， 在此不作赘述。
[0083] 所述光源装置 10包括光源 11及用于驱动所述光源 11的光源驱动模组 13。 所述光 源 11为激发光源， 用于出射激发光， 如蓝色激发光， 所述光源 11可以为蓝色激 光光源 （如蓝色激光器或蓝色激光二极管） 。 在一种变更实施方式中， 所述光 源 11也可以是其他颜色的光源， 并不以蓝色光源为限， 如所述光源 11可以是紫 外激光光源 （如紫外激光器或紫外光激光二极管） ， 从而发出紫外激发光。 进 一步地， 所述光源 11优选为半导体激光光源， 用以提供高亮度的激发光。 所述 光源 11为激光器阵列或二极管阵列组成。
[0084] 周期性运动地所述色轮 41在所述光源 11的照射下， 能够依吋序出射不同颜色的 光。
[0085] 本实施方式中， 所述光源驱动模组 13与所述中控模组 455连接。 具体地， 当所 述马达 451工作的环境温度低于所述马达 451工作的启动温度吋， 若需启动所述 马达 451， 所述光源驱动模组 13提供给所述光源 11一预设的光源驱动电流驱动所 述光源 11于一加热吋间段发光， 所述投影设备 100的整机温度升高， 进而亦对所 述马达 451进行预热。 在此， 将用于预热所述马达 451吋的光源驱动电流称为预 热光源驱动电流， 正常工作吋的光源驱动电流称为工作光源驱动电流， 所述正 常工作吋即所述投影设备 100能够正常投影显示图像。 所述预设光源驱动电流小 于所述马达 451驱动所述色轮 41运动吋所述光源 11照射所述色轮 41的光源驱动电 流， 即用于预热所述马达 451的预热光源驱动电流小于驱动所述光源 11正常工作 吋的工作光源驱动电流， 进而避免所述投影设备 100的整机温度骤变而对所述投 影设备 100的元件造成损坏， 例如避免烧毁所述色轮 41。
[0086] 具体地， 所述温度检测模组 457实吋检测所述马达 451工作的环境温度并反馈给 所述中控模组 455。 当所述马达 451工作的环境温度上升至一预设温度吋， 所述 中控模组 455控制所述马达驱动模组 453输送给所述马达 451—额定启动电流， 所 述马达 451被驱动运转， 所述中控模组 455控制所述光源驱动模组 13提供给所述 光源 11工作光源驱动电流。 本实施方式中， 所述预设温度为所述马达 451的启动 温度。 所述色轮 41被驱动运动。 作周期性运动地色轮 41， 在所述光源 11的照射 下依吋序出射不同颜色的光。 所述马达 451运转速度达到一定值稳定后， 或为预 设的一定转速范围内， 换句话说为所述马达 451的运转速度达到稳定后， 所述中 控模组 455控制所述马达驱动模组 453输送给所述马达 451工作电流。
[0087] 在一可变更实施例中， 所述马达装置 45还包括存储模组 459。 所述存储模组 459 与所述中控模组 455连接， 用于存储不同的环境温度对应的预设的加热吋间段， 进而方便控制所述马达 451的启动。 例如， 所述环境温度为 C1对应的预设的加热 吋间段为 Gl， 所述环境温度为 C2对应的预设的加热吋间段为 G2， 所述环境温度 为 C3对应的预设的加热吋间段为 G3.....， 所述环境温度为 CN对应的预设的加热 吋间段为 GN。 在不同环境温度下， 对应的加热吋间段， 所述预热光源驱动电流 均为相同值。 具体地， 在所述马达 451所处环境温度低于所述预设温度情况下， 当需启动所述马达 451吋， 所述温度检测模组 457检测到所述马达 451工作的环境 温度为 C2并将所述环境温度 C2反馈给所述中控模组 455， 所述中控模组 455于所 述存储模组 459中进行査找， 确认所述环境温度 C2对应的预设的加热吋间段为 G2 。 所述中控模组 455控制所述光源驱动模组 13驱动所述光源 11发光。 当加热吋间 段 G2后， 所述马达 451的工作环境的温度达到预设温度， 所述中控模组 455控制 所述马达驱动模组 453输送给所述马达 451额定启动电流， 启动所述马达 451， 所 述马达 451幵始运转， 所述中控模组 455控制所述光源驱动模组 13提供给所述光 源 11工作光源驱动电流。 如此， 不管所述环境温度为多少， 所述预热光源驱动 电流均是相同的， 方便了控制。
[0088] 在一可变更实施例中， 所述马达装置 45还包括存储模组 459。 所述存储模组 459 与所述中控模组 455连接， 用于存储不同的环境温度对应的预设的预热光源驱动 电流。 在不同环境温度下， 所述预热光源驱动电流值不相同， 对应的加热吋间 段相等。 例如， 所述环境温度为 C1对应的预设的预热光源驱动电流为 Jl， 所述 环境温度为 C2对应的预设的预热光源驱动电流为 J2， 所述环境温度为 C3对应的 预设的预热光源驱动电流为 J3......， 所述环境温度为 CN对应的预设的预热光源 驱动电流为 JN。 具体地， 在所述马达 451所处环境温度低于所述预设温度情况下 ， 当需启动所述马达 451吋， 所述温度检测模组 457检测到所述马达 451工作的环 境温度为 C1并将所述环境温度 C1反馈给所述中控模组 455， 所述中控模组 455于 所述存储模组 459中进行査找， 确认所述环境温度 C1对应的预设的预热光源驱动 电流为 Jl。 所述中控模组 455控制所述光源驱动模组 13以预热光源驱动电流 Jl驱 动所述光源 11发光。 当预热一预设的加热吋间段后， 所述马达 451的工作环境的 温度达到预设温度， 所述中控模组 455控制所述马达驱动模组 453输送给所述马 达 451额定启动电流， 启动所述马达 451， 所述马达 451幵始运转， 所述中控模组 455控制所述光源驱动模组 13提供给所述光源 11工作光源驱动电流。 如此， 不管 所述环境温度为多少， 所述预热的加热吋间段均是相同的， 方便了控制。
[0089] 在一可变更实施例中， 所述马达装置 45还包括存储模组 459。 所述存储模组 459 与所述中控模组 455连接， 用于存储环境温度对应预设的加热吋间段及预热光源 驱动电流， 即中控模组 455依据环境温度调节设置预设加热吋间段及预热光源驱 动电流。 例如， 所述环境温度为 C1对应的预设的预热光源驱动电流为 J1及预设 的加热吋间段为 T1； 所述环境温度为 C2对应的预设的预热光源驱动电流为 J2及 预设的加热吋间段为 T2， 所述环境温度为 C3对应的预设的预热光源驱动电流为 J 3及预设的加热吋间段为 T3......， 所述环境温度为 CN对应的预设的预热光源驱 动电流为 JN及预设的加热吋间段为 TN。 具体地， 在所述马达 451所处环境温度低 于所述预设温度情况下， 当需启动所述马达 451吋， 所述温度检测模组 457检测 到所述马达 451工作的环境温度为 C1并将所述环境温度 C1反馈给所述中控模组 45 5， 所述中控模组 455于所述存储模组 459中进行査找， 确认所述环境温度 C1对应 的预设的加热吋间段为 T1及预设的预热光源驱动电流为 Jl。 所述中控模组 455控 制所述光源驱动模组 13以预热光源驱动电流 J1驱动所述光源 11发光， 且所述光源 11发光吋长为加热吋间段 Tl。 当所述马达 451的工作环境的温度达到预设温度后 ， 所述中控模组 455控制所述马达驱动模组 453输送给所述马达 451额定启动电流 ， 启动所述马达 451， 所述马达 451幵始运转， 所述中控模组 455控制所述光源驱 动模组 13提供给所述光源 11工作光源驱动电流。 如此， 不同的环境温度对应预 热的加热吋间段及预热光源驱动电流是不同的， 可灵活控制马达 451的启动。
[0090] 可以理解， 所述存储模组 459可以设置于所述投影设备 100， 其也可以为外部元 件， 如可与所述存储模组 459连接的移动硬盘等装置或设备。
[0091] 可以理解， 将向所述马达 451提供热能的模组或装置设为供热单元， 如发光的 光源装置 10， 马达驱动模组 453， 或其它的供热单元。 所述供热单元可为设置在 投影设备 100外部的加热器。
[0092] 可以理解， 所述光源 11可以为热光源， 所述光源 11被驱动发光发热， 进而能够 提升所述马达工作的环境温度。
[0093] 可以理解， 所述光源 11可以为冷光源， 所述光源 11被驱动发光照射在所述色轮
41上， 所述色轮 41出射光进而能够提升所述马达工作的环境温度。
[0094] 本发明还提供一种应用于色轮装置的马达启动方法， 所述色轮装置包括色轮、 马达及驱动控制装置。 所述驱动控制装置包括马达驱动模组、 中控模组及温度 检测模组。 所述马达驱动模组用于向所述马达提供电流。 所述中控模组与所述 马达驱动模组及所述温度检测模组连接。 所述温度检测模组用于检测所述马达 工作的环境温度并反馈给所述中控模组。
[0095] 请参阅图 6， 一种马达启动方法， 其包括以下步骤：
[0096] 步骤 601， 在所述马达工作的环境温度低于预设温度吋， 提供给所述马达热能 以对所述马达进行预热， 使所述马达的温度上升至所述预设温度。
[0097] 一般情况下， 通过所述温度检测模组检测所述马达工作的环境温度并反馈给所 述中控模组。 特殊情况下， 比如根据人的感觉明显可以确定所述马达的工作的 环境温度低于所述预设温度的情况下， 就不需要检测所述马达工作的环境温度 。 即这里对于如何确定所述马达工作的环境温度是否低于预设温度不作严格限 定。
[0098] 步骤 602， 提供给所述马达额定启动电流， 以驱动所述马达启动并运转。
[0099] 在另一实施例中， 请参阅图 7， 所述马达启动方法包括以下步骤：
[0100] 步骤 701， 检测所述马达工作的环境温度。
[0101] 步骤 702， 将所述环境温度与一预设温度进行比较， 并判断所述环境温度是否 低于所述预设温度， 若是则执行步骤 703， 否则执行步骤 704。
[0102] 将所述马达在启动温度下进行启动运转的状态为正常启动。 所述启动温度即为 所述马达以额定启动电流启动运转吋所述马达所处工作环境的环境温度。 将所 述马达所处工作环境的环境温度低于所述启动温度的温度称为低温。 本实施方 式中， 所述预设温度为所述马达的启动温度。 所述马达驱动电流值小于所述额 定启动电流的值。 本实施方式中， 所述马达为油压马达； 所述马达的启动温度 大于或等于 5°C， 所述低温小于 5°C。 可以理解， 所述马达的启动温度不限于大于 或等于 5°C， 所述低温不限于小于 5°C， 依据所述马达的实际情况进行变化。
[0103] 通过所述温度检测模组检测所述马达工作的环境温度并反馈给所述中控模组， 所述中控模组将所述温度检测模组检测到的环境温度与预设温度比较， 若所述 中控模组判定所述环境温度低于预设温度则执行步骤 703； 否则执行步骤 704。
[0104] 步骤 703， 提供给所述马达热能以对所述马达进行预热， 使所述马达的温度上 升至预设温度。
[0105] 通过所述中控模组控制所述马达驱动模组输送给所述马达一预设的马达驱动电 流。 本实施方式中， 所述马达驱动电流值小于所述额定启动电流值。 所述马达 驱动模组向所述马达提供所述马达驱动电流并维持一段吋间， 以使所述马达工 作的环境温度上升至预设温度。 设所述马达驱动电流驱动所述马达的吋长为第 一驱动吋间段。 经所述第一驱动吋间段预热后， 所述马达工作的环境温度上升 至所述马达的启动温度。
[0106] 在一可变更实施例中， 通过所述中控模组控制所述马达驱动模组输送给所述马 达一预设的马达驱动电流。 所述马达驱动电流值等于所述额定启动电流值， 直 至所述马达的温度上升至所述马达正常启动下的启动温度， 所述马达被启动。 所述马达的运转速度稳定后， 所述中控模组控制所述马达驱动模组输送给所述 马达工作电流。
[0107] 所述驱动控制装置还包括存储模组。 所述存储模组与所述中控模组连接， 用于 存储环境温度对应预设的第一驱动吋间段。 具体地， 在所述马达所处环境温度 低于所述预设温度情况下， 当需启动所述马达吋， 所述温度检测模组检测到所 述马达工作的环境温度为 C1并将所述环境温度 C1反馈给所述中控模组， 所述中 控模组于所述存储模组中进行査找， 确认所述环境温度 C1对应的预设的第一驱 动吋间段为 Tl。 所述中控模组控制所述马达驱动模组于所述第一驱动吋间段 T1 向所述马达提供所述马达驱动电流进行预热。
[0108] 在一可变更实施例中， 在所述马达所处环境温度低于所述预设温度情况下， 当 需启动所述马达吋， 所述中控模组控制所述马达驱动模组向所述马达输送预设 的马达驱动电流以对所述马达进行预热， 所述温度检测模组实吋检测所述马达 工作的环境温度并反馈给所述中控模组， 直至所述环境温度上升至所述预设温 度。
[0109] 在一可变更实施例中， 所述色轮装置应用于一投影设备。 所述投影设备包括光 源装置、 上述色轮装置以及光调制装置。 所述光源装置出射光。 所述色轮装置 位于所述光源出射光的传输路径中， 以在所述光源装置的照射下出射不同颜色 的光。 所述光调制装置位于所述色轮装置出射光的传输路径中， 所述光调制装 置能够依据光调制信号对所述色轮出射的光进行图像调制。 所述投影设备还包 括其它必要或非必要结构， 如图像处理模组、 投影镜头等， 在此不作赘述。 所 述光源装置包括光源及用于驱动所述光源的光源驱动模组。 所述光源驱动模组 与所述中控模组连接。 当所述马达工作的环境温度低于所述马达工作的启动温 度吋， 若需启动所述马达， 所述光源驱动模组提供给所述光源一预设的加热光 源驱动电流驱动所述光源于一加热吋间段发光， 所述投影设备的整机温度升高 ， 进而亦对所述马达进行预热。
[0110] 步骤 704， 提供给所述马达额定启动电流， 驱动所述马达启动运转。
[0111] 当所述马达的温度上升至所述马达的启动温度吋， 所述中控模组控制所述马达 驱动模组提供给所述马达额定启动电流， 驱动所述马达运转， 所述色轮运动。
[0112] 可以理解， 所述马达启动方法并不仅限用于色轮装置， 其也可以应用其他应用 马达的装置、 设备或场合。 所述步骤 701、 所述步骤 702可以省略， 即已确定所 述马达的工作的环境温度已处于低于所述预设温度的状态下。
[0113] 可以理解， 在某些情况下， 检测所述马达工作的环境温度， 当所述环境温度低 于所述预设温度吋， 则执行所述提供给所述马达热能以对所述马达进行预热的 步骤， 而在所述环境温度不低于所述预设温度的情况下， 可以直接执行步骤 704 ， 也可以执行其他步骤来驱动所述马达启动运转， 或者先执行其他步骤再执行 步骤 704来驱动所述马达启动运转， 即在所述环境温度不低于所述预设温度的情 况下， 对马达启动的方式不作严格限定。
[0114] 可以理解， 一种马达启动方法， 其包括以下步骤：
[0115] 步骤 1， 检测所述马达工作的环境温度， 当所述环境温度低于预设温度吋， 则 执行步骤 2， 否则执行步骤 3; [0116] 步骤 2， 提供给所述马达热能以对所述马达进行预热， 使所述马达的温度上升 至预设温度；
[0117] 步骤 3， 提供给所述马达额定启动电流， 以驱动所述马达启动并运转。
[0118] 本发明提供的驱动控制装置、 色轮装置、 投影设备及马达启动方法。 在所述马 达工作的环境温度低于预设温度的环境下， 需对所述马达进行启动吋， 通过对 所述马达提供热能进行预热， 使所述马达的温度上升至所述马达的启动温度进 行正常启动， 所述马达的油的粘稠度亦降低至正常粘稠度， 这样不需要提供给 所述马达高于额定启动电流的高电流就能驱动所述马达启动并运转， 进而能够 保护所述马达， 延长了所述马达的使用寿命， 也能够延长色轮装置的使用寿命
[0119] 可以理解的是， 本领域技术人员还可在本发明精神内做其它变化等用在本发明 的设计， 只要其不偏离本发明的技术效果均可。 这些依据本发明精神所做的变 化， 都应包含在本发明所要求保护的范围之内。
[0120]

Claims

权利要求书
一种马达启动方法， 其包括以下步骤：
在所述马达工作的环境温度低于预设温度吋， 提供给所述马达热能以 对所述马达进行预热， 使所述马达的温度上升至所述预设温度； 提供给所述马达额定启动电流， 以驱动所述马达启动并运转。
如权利要求 1所述的马达启动方法， 其特征在于： 通过向所述马达输 入马达驱动电流以提供给所述马达热能对所述马达进行预热； 其中， 所述马达驱动电流值不大于所述马达的额定启动电流值。 如权利要求 1所述的马达启动方法， 其特征在于： 通过输入光能以提 供给所述马达热能对所述马达进行预热。
如权利要求 1所述的马达启动方法， 其特征在于： 所述提供给所述马 达热能以对所述马达进行预热的步骤前， 所述马达启动方法还包括检 测所述马达工作的环境温度的步骤， 当所述环境温度低于所述预设温 度吋， 则执行所述提供给所述马达热能以对所述马达进行预热的步骤 如权利要求 1所述的马达启动方法， 其特征在于： 所述马达在运转后 的转速达到稳定之后， 提供给所述马达一小于所述额定启动电流值的 工作电流。
一种马达启动方法， 其包括以下步骤：
步骤 1， 检测所述马达工作的环境温度， 当所述环境温度低于预设温 度吋， 执行步骤 2， 否则执行步骤 3;
步骤 2， 提供给所述马达热能以对所述马达进行预热， 使所述马达的 温度上升至预设温度；
步骤 3， 提供给所述马达额定启动电流， 以驱动所述马达启动并运转
[权利要求 7] —种马达装置， 其包括马达、 马达驱动模组及中控模组， 所述马达驱 动模组与所述中控模组及所述马达连接， 其特征在于： 当所述马达工 作的环境温度低于预设温度需进行启动吋， 通过一供热单元提供给所 述马达热能以对所述马达进行预热， 使所述马达的温度上升至所述预 设温度。
如权利要求 7所述的马达装置， 其特征在于： 所述供热单元为所述马 达驱动模组， 所述马达驱动模组通过向所述马达输入马达驱动电流提 供给所述马达热能以对所述马达进行预热；
其中， 所述马达驱动电流值小于或等于所述马达的额定启动电流值。 如权利要求 7所述的马达装置， 其特征在于： 所述供热单元通过向所 述马达输入光能提供给所述马达热能以对所述马达进行预热。
如权利要求 7所述的马达装置， 其特征在于： 所述马达装置还包括与 所述中控模组连接的温度检测模组， 所述温度检测模组用于检测所述 马达工作的环境温度并反馈给所述中控模组；
当所述环境温度低于所述预设温度吋， 所述中控模组控制所述马达驱 动模组输送给所述马达一马达驱动电流。
如权利要求 10所述的马达装置， 其特征在于： 所述温度检测模组实吋 向所述中控模组反馈所述环境温度， 当所述环境温度上升至所述预设 温度吋， 所述中控模组控制所述马达驱动模组向所述马达提供所述额 定启动电流驱动所述马达启动运转； 或者， 所述马达装置还包括存储 模组， 所述存储模组存储有不同的环境温度及其对应的预设吋间段， 所述中控模组依据所述温度检测模组检测到的环境温度于所述存储模 组中査找确认对应的预设第一驱动吋间段， 并按照所述预设的第一驱 动吋间段的吋长控制所述马达驱动模组向所述马达输送所述马达驱动 电流。
如权利要求 7所述的马达装置， 其特征在于： 所述马达在其运转速度 稳定后的工作电流值小于所述额定启动电流值。
一种色轮装置， 其包括色轮及如权利要求 7至 12项任意一项所述的马 达装置， 所述马达装置的马达与所述色轮连接。
一种投影设备， 其包括如权利要求 13所述的色轮装置、 光源装置及光 调制装置， 所述色轮设置在所述光源装置出射的光路上， 所述光调制 装置在所述色轮装置出射相应颜色光的吋段内进行调制。
[权利要求 15] 如权利要求 14所述的投影设备， 其特征在于： 所述光源装置包括光源 及光源驱动模组， 所述供热单元为所述光源装置， 当所述马达工作的 环境温度低于预设温度需进行启动吋， 通过所述光源驱动模组向所述 光源输入光源驱动电流使所述光源发光， 以提供给所述马达热能对所 述马达进行预热。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009004197A1 (fr) * 2007-06-29 2009-01-08 Valeo Equipements Electriques Moteur Procede et dispositif de commande d'un systeme de demarrage d'un vehicule motorise mettant en oeuvre une architecture du type dit 'arret-relance' automatique du moteur
CN103151983A (zh) * 2013-01-08 2013-06-12 科比传动技术（上海）有限公司 永磁伺服电机的加热方法及系统
CN204089489U (zh) * 2014-07-05 2015-01-07 常州市天之立纺织有限公司 油预热电机
CN204376795U (zh) * 2014-12-26 2015-06-03 中国电子科技集团公司第二十一研究所 电机控制装置
CN105257473A (zh) * 2015-11-10 2016-01-20 四川东方电气自动控制工程有限公司 一种风电机组低温快速启机控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009004197A1 (fr) * 2007-06-29 2009-01-08 Valeo Equipements Electriques Moteur Procede et dispositif de commande d'un systeme de demarrage d'un vehicule motorise mettant en oeuvre une architecture du type dit 'arret-relance' automatique du moteur
CN103151983A (zh) * 2013-01-08 2013-06-12 科比传动技术（上海）有限公司 永磁伺服电机的加热方法及系统
CN204089489U (zh) * 2014-07-05 2015-01-07 常州市天之立纺织有限公司 油预热电机
CN204376795U (zh) * 2014-12-26 2015-06-03 中国电子科技集团公司第二十一研究所 电机控制装置
CN105257473A (zh) * 2015-11-10 2016-01-20 四川东方电气自动控制工程有限公司 一种风电机组低温快速启机控制方法

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