CN111140528A - Control method for maximum rotating speed of fan motor - Google Patents
Control method for maximum rotating speed of fan motor Download PDFInfo
- Publication number
- CN111140528A CN111140528A CN201911346092.8A CN201911346092A CN111140528A CN 111140528 A CN111140528 A CN 111140528A CN 201911346092 A CN201911346092 A CN 201911346092A CN 111140528 A CN111140528 A CN 111140528A
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- Prior art keywords
- rotating speed
- controller
- maximum rotating
- fan motor
- fan
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/14—Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/20—Controlling the acceleration or deceleration
Abstract
The invention discloses a control method of the maximum rotating speed of a fan motor, which takes the condition that the fan motor is always ensured to operate in the highest safe rotating speed range allowed by the fan motor as a primary control target; a hand controller connected with a fan controller performs online adjustment of the maximum rotating speed of a fan motor to serve as a secondary control target; the method comprises the following steps of (1) operating a fan motor in a factory-set maximum rotating speed range of a fan controller to serve as a three-level control target; the priority of the secondary control target is smaller than that of the primary control target and larger than that of the tertiary control target; in the daily running process of the actual fan, a user can carry out the mode of switching in and adjusting the maximum rotating speed of the fan motor through the hand controller in real time according to the requirement, and can flexibly set the maximum rotating speed of the fan motor on the premise of always ensuring that the fan motor is in safe rotating speed running, so that the use experience level of the user is obviously improved, and the intelligent control level of the fan controller is further improved.
Description
Technical Field
The invention belongs to the field of controllers, and particularly relates to a control method for the maximum rotating speed of a fan motor.
Background
The main working principle of the fan is a device for increasing gas pressure and discharging gas by mechanical energy, and the fan can specifically comprise a ventilator or a blower, and is widely applied to various industries. The fan controller is mainly used for realizing the drive control of a fan motor, and the structure of the fan controller mainly comprises a frequency converter and various drive circuits consisting of electronic elements. However, the existing fan controller has more defects in the aspects of installation structure, self-protection control, waterproof performance, communication control mode, flexible speed regulation meeting different application scenes and the like.
Therefore, the applicant establishes a key research and development subject based on the years of research and development experience in the field of controllers, comprehensively innovatively develops and improves various technical problems of the fan controller in a centralized and systematic manner, and provides a plurality of patent applications for protection aiming at the innovative technical schemes.
Disclosure of Invention
In view of this, the present invention aims to provide a method for controlling the maximum rotation speed of a fan motor, in the daily operation process of an actual fan, a user can perform a mode of switching in and adjusting the maximum rotation speed of the fan motor through a manual controller as needed in real time, and on the premise of always ensuring that the fan motor is in safe rotation speed operation, the maximum rotation speed of the fan motor can be flexibly set, so that the user experience level is significantly improved, and the intelligent control level of the fan controller is further improved.
The technical scheme adopted by the invention is as follows:
a control method for the maximum rotating speed of a fan motor is characterized in that the fan motor is driven by a fan controller to operate, priority setting control is adopted, and the priority control sequence is as follows: the method comprises the following steps of (1) always ensuring that a fan motor operates within the maximum safe rotating speed range allowed by the fan motor as a primary control target; a hand controller connected with a fan controller performs online adjustment of the maximum rotating speed of a fan motor to serve as a secondary control target; the method comprises the following steps of (1) operating a fan motor in a factory-set maximum rotating speed range of a fan controller to serve as a three-level control target; the priority of the secondary control target is smaller than that of the primary control target and larger than that of the tertiary control target; wherein the content of the first and second substances,
the operation steps of the secondary control target include the following:
s11), rotating the maximum rotating speed potentiometer knob of the hand controller clockwise or anticlockwise to realize the input of the maximum rotating speed parameter of the fan motor;
s12), operating the input key to confirm the maximum rotating speed parameter instruction, and simultaneously sending the maximum rotating speed parameter instruction to the fan controller through the wire harness;
s13), the fan controller takes the maximum rotating speed parameter instruction as a secondary control target to set the maximum rotating speed of the fan motor on line.
Preferably, the priority control order further includes: carrying out online regulation on the maximum rotating speed of a fan motor by using a maximum rotating speed regulating key connected with a fan controller as a secondary control target, wherein the priority of the secondary control target is smaller than the secondary control target and larger than the tertiary control target; the maximum rotating speed adjusting key comprises an acceleration adjusting key and a deceleration adjusting key which are arranged on the fan controller, and the maximum rotating speed of the fan motor is set on line by selectively operating the acceleration adjusting key or the deceleration adjusting key.
Preferably, the fan controller comprises a controller mounting shell with an internal mounting space, a controller circuit board is fixedly mounted in the internal mounting space, an electronic component and a frequency converter chip are arranged on the front surface and/or the back surface of the controller circuit board, and the electronic component comprises a maximum rotating speed wire harness socket of the frequency converter;
the hand controller comprises a hand controller mounting shell and a speed regulation circuit board mounted on the hand controller, wherein the speed regulation circuit board is provided with a maximum rotating speed potentiometer knob for adjusting maximum rotating speed parameters, an input for confirming maximum rotating speed parameter instructions, a digital display tube for displaying real-time maximum rotating speed parameters and a maximum rotating speed wiring harness socket for connection, and the maximum rotating speed wiring harness socket is connected with the maximum rotating speed wiring harness socket of the frequency converter through wiring harnesses.
Preferably, the wire harness adopts a maximum rotating speed four-core wire harness and comprises a power supply wire, a sending signal wire, a receiving signal wire and a grounding wire.
Preferably, the controller mounting housing comprises an integrally formed housing bottom plate and a housing wall vertically extending along the periphery of the housing bottom plate, and is used for forming the internal mounting space, and a housing cover plate for sealing the internal mounting space is correspondingly arranged at a port part of the housing wall; the electronic component assembly comprises a frequency converter maximum rotating speed wire harness insertion port arranged on the back face of the controller circuit board, meanwhile, a manual operation window corresponding to the position of the frequency converter maximum rotating speed wire harness insertion port is arranged on the shell bottom plate, and the frequency converter maximum rotating speed wire harness insertion port is connected with a wire harness insertion port through the manual operation window and used for being connected with the maximum rotating speed wire harness insertion port.
Preferably, the speed-up adjusting key and the speed-down adjusting key are located on the back of a controller circuit board of the fan controller, and the installation positions of the speed-up adjusting key and the speed-down adjusting key correspond to the manual operation window so as to facilitate manual operation.
The method controls and manages the maximum rotating speed of the fan motor by proposing a thought of priority setting control, particularly, the method takes the operation of the fan motor in the maximum safe rotating speed range (the maximum safe rotating speed of the fan motor in the operation is an inherent characteristic parameter due to the motor structure) which is always ensured to be operated as the first-level priority, takes the control mode of switching-in type maximum rotating speed on-line adjustment through a hand controller as the second-level priority, and finally takes the factory-set maximum rotating speed range as the third-level priority, and in the daily operation process of the actual fan, a user can carry out the mode of switching-in adjustment of the maximum rotating speed of the fan motor through the hand controller in real time according to needs, and can flexibly set the maximum rotating speed of the fan motor on the premise of always ensuring the fan motor to be operated at the safe rotating speed, thereby obviously improving the use experience level of, and then improve fan controller's intelligent control level.
Drawings
FIG. 1 is a schematic diagram of a fan controller according to an embodiment of the present application;
fig. 2 is a schematic structural view of fig. 1 after being rotated by a certain angle (the hand controller 3 is not shown);
fig. 3 is a schematic diagram of the exploded structure of fig. 1 (hand controller 3 is not shown);
fig. 4 is a rear view of the controller circuit board 100 of fig. 3;
fig. 5 is a schematic view of a mounting structure of the controller circuit board 100 in the internal mounting space 11 according to the embodiment of the present application;
FIG. 6 is a schematic diagram of the exploded structure of FIG. 5;
fig. 7 is a schematic structural diagram of the manual controller 3 according to the embodiment of the present application;
FIG. 8 is a schematic diagram of the exploded structure of FIG. 7;
FIG. 9 is a schematic view of the structure of the waterproof cover 60 according to the embodiment of the present application;
FIG. 10 is a cross-sectional view of FIG. 9;
FIG. 11 is a block diagram illustrating the operation steps of the output power control protection mode according to the preferred embodiment of the present application;
FIG. 12 is a block diagram illustrating the operation of the temperature control protection mode in accordance with an embodiment of the present application;
fig. 13 is a block diagram of the operation steps of the secondary control target in the method for controlling the maximum rotational speed of the fan motor according to the embodiment of the present application.
Detailed Description
The embodiment of the invention discloses a control method for the maximum rotating speed of a fan motor, wherein the fan motor is driven to operate by a fan controller and is controlled by priority setting, and the priority control sequence is as follows: the method comprises the following steps of (1) always ensuring that a fan motor operates within the maximum safe rotating speed range allowed by the fan motor as a primary control target; a hand controller connected with a fan controller performs online adjustment of the maximum rotating speed of a fan motor to serve as a secondary control target; the method comprises the following steps of (1) operating a fan motor in a factory-set maximum rotating speed range of a fan controller to serve as a three-level control target; the priority of the secondary control target is smaller than that of the primary control target and larger than that of the tertiary control target; the operation steps of the secondary control target comprise the following steps: s11), rotating the maximum rotating speed potentiometer knob of the hand controller clockwise or anticlockwise to realize the input of the maximum rotating speed parameter of the fan motor; s12), operating the input key to confirm the maximum rotating speed parameter instruction, and simultaneously sending the maximum rotating speed parameter instruction to the fan controller through the wire harness; s13), the fan controller takes the maximum rotating speed parameter instruction as a secondary control target to set the maximum rotating speed of the fan motor on line.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 10, a fan controller 1 is used for driving a fan motor to operate, and the fan controller 1 and the fan motor are connected by hall electric control of a connection terminal, which belongs to the common general knowledge in the field of motor driving, and the application does not have any particular limitation on the specific electric connection mode, and therefore, the description thereof is not repeated; the fan controller 1 comprises a controller mounting shell 20 with an internal mounting space 11, a controller circuit board 100 is fixedly mounted in the internal mounting space 11, an electronic component and a frequency converter chip 110 are arranged on the front surface and/or the back surface of the controller circuit board 100, a filter 2 is connected between an input power supply (not shown) and the fan controller 1, a filter mounting base 21 is fixedly mounted on the controller mounting shell 20, and the filter 2 is fixedly mounted on the controller mounting shell 20 through the filter mounting base 21; the electronic component assembly comprises a frequency converter wiring harness interface 121 and a frequency converter maximum rotating speed wiring harness interface 122, and the frequency converter wiring harness interface 121 is connected with the hand controller 3 through a wiring harness; the hand controller 3 comprises a hand controller mounting shell 31 and a speed regulating circuit board 32 mounted on the hand controller mounting shell 31, wherein the speed regulating circuit board 32 is respectively provided with a speed regulating wire harness interface 33 for online speed regulation and a maximum rotating speed wire harness interface 34 for regulating the maximum rotating speed, the speed regulating wire harness interface 33 is connected with a frequency converter wire harness interface 121 through a wire harness, and the maximum rotating speed wire harness interface 34 is connected with a frequency converter maximum rotating speed wire harness interface 122 through a wire harness; preferably, in this embodiment, the electronic component further includes a converter USB harness interface 123, the converter USB harness interface 123 is connected to a USB serial-to-serial communication chip board (available in the market by direct purchase) through a harness, and the USB serial-to-serial communication chip board is connected to the operation control platform through the harness.
The present embodiment provides the filter 2 for performing power filtering processing on the fan controller 1, and simultaneously sets the filter mounting base 21 on the controller mounting housing 20, and directly and fixedly mounts the filter 2 on the filter mounting base 21, so that the filter 2 and the fan controller 1 are mounted as a whole, which is beneficial to mounting compactness, and simultaneously effectively saves the mounting occupied volume, and simultaneously, the present embodiment further sets the hand controller 3 for online speed regulation and maximum speed regulation of the fan motor, reliably meets the diversified application requirements of the fan controller 1 after being applied to different client application scenes, facilitates the real-time regulation of the user, greatly improves the user experience level, and simultaneously can effectively reduce the failure rate of the fan motor through the real-time online speed regulation, compared with the prior art, the fan controller 1 provided by the embodiment has more excellent application performance in the aspects of installation structure and flexible speed regulation.
The present embodiment also specifically proposes a mounting structure of a blower controller 1, in which the controller mounting casing 20 includes an integrally formed casing bottom plate 20a and a casing wall 20b extending integrally and vertically along the periphery of the casing bottom plate 20a, and is used for forming an internal mounting space 11, and a casing cover plate 20c for hermetically mounting the internal mounting space 11 is correspondingly arranged at a port portion of the casing wall 20 b; a plurality of bottom plate locking holes 22 are uniformly distributed at intervals on the periphery of the shell bottom plate 20a, and preferably, the number of the bottom plate locking holes 22 is 3-8; particularly preferably, in the present embodiment, the number of the floor locking holes 22 is 4; the bottom plate locking holes 22 vertically extend along the inner side to form locking columns 23, the shell cover plate 20c is provided with cover plate locking holes 24 which are correspondingly matched with the locking columns 23 one by one, and the shell bottom plate 20a and the shell cover plate 20c are fixedly connected into a whole through the locking matching between the screw fasteners and the locking holes 24 and the locking columns 23; a limiting groove 130 which is in limiting fit with the locking column 23 is arranged on the circuit board 100 positioned in the internal mounting space 11;
preferably, in the present embodiment, the controller mounting case 20 is made of cast aluminum, and the controller mounting case 20 has a cylindrical shape; the shell bottom plate 20a is provided with a heat dissipation bump 25 integrally extending towards the inner side of the shell bottom plate, and a rectifier bridge 124 positioned on the back surface of the controller circuit board 100 is in contact connection with the heat dissipation bump 25; a heat dissipation boss 26 integrally extending towards the inner side of the shell wall 20b is arranged on the shell wall, and a frequency converter chip 110 positioned on the front surface of the controller circuit board 100 is in contact connection with the heat dissipation boss 26; a heat radiation fin 27 is arranged on the outer side of the shell wall 20b corresponding to the position of the heat radiation boss 26; in order to ensure the mounting strength of the case cover plate 20c, a reinforcing circular boss 28 is provided at the center of the case cover plate 20c, and a reinforcing rib 29 having an equilateral triangle shape and centered on the reinforcing circular boss 28 is further provided on the case cover plate 20 c.
Preferably, the bottom of the locking column 23 is provided with a limit boss 23a which is in limit fit with the limit groove 130.
This embodiment is used for carrying out fastening connection's bottom plate locking hole 22 with shell cover plate 20c through proposing shell bottom plate 20a and designs into locking post 23 structure, correspond on circuit board 100 simultaneously and set up with the spacing complex spacing recess 130 of each locking post 23, this spacing cooperation structure is favorable to when installing controller circuit board 100 at the internally mounted space 11 of controller installation casing 20, can carry out spacing installation fast with controller circuit board 100 accurately, the installation location process has greatly been simplified, need not consume dedicated spacing mounting structure simultaneously, avoid additionally occupying internally mounted space 11.
Aiming at the problems of fan motor over-application or fan motor overheating operation in the prior art, and the improvement schemes for avoiding the problems of fan motor over-application or fan overheating operation usually adopt hardware circuits for protection, and lack of intelligent protection control schemes, the embodiment further provides a preferable protection control method of the fan controller 1, wherein the protection control method comprises an output power control protection mode for preventing the fan motor over-application and/or a temperature control protection mode for preventing the fan motor from overheating operation, wherein the output power control protection mode comprises real-time comparison of a controller output power actual value obtained by monitoring and calculation based on controller reading and a preset controller maximum allowable output power value, and control of the output current of the controller according to the comparison condition, ensuring that the actual value of the output power of the controller does not exceed the preset maximum allowable output power value; the temperature control protection mode comprises the steps of comparing the actual value of the motor winding temperature calculated based on a resistance method with the preset maximum allowable temperature value of the motor winding in real time, controlling the output current of the controller according to the comparison condition and ensuring that the actual value of the temperature does not exceed the preset maximum allowable temperature value.
In this embodiment, the operation of the output power control protection mode includes:
A10) and reading the output current I of the fan controller 1 in real timedqaAnd an output voltage VdqaBased on the output current IdqaAnd an output voltage VdqaCalculating to obtain an actual value P of the output power of the controlleraWherein P isa＝Idqa×Vdqa；
A20) The actual value P of the output power of the controlleraWith the preset maximum allowable output power value P of the controllersPerforming real-time comparison if PaGreater than PsGo to step A30), if PaLess than PsStep a40) is entered, in particular, the controller maximum allowable output power value PsThe fan motor is determined by the technical personnel in the field according to the structural characteristics of the fan motor and belongs to the common knowledge in the field;
A30) the fan controller 1 starts an instruction for reducing output current and outputs the current;
A40) return to step a 10).
Preferably, in another embodiment, step a20) is replaced with step a 20'), see fig. 11): the actual value P of the output power of the controlleraCarrying out deviation correction to obtain a corrected actual value P of the output power of the controllera', the correction formula is: pa’＝Pa±Poffset，PoffsetFor the preset output power deviation parameter, specifically, in the present embodiment, PoffsetThe range of (A) can be selected from 1-10W; output the controllerPower corrected actual value Pa' with preset controller maximum allowable output power value PsPerforming real-time comparison if Pa' greater than PsGo to step A30), if Pa' less than PsEntering step a 40); particularly preferably, in this embodiment, step a 20') includes the following steps:
a21'), and outputting the actual value P of the power output by the controlleraCarrying out negative deviation correction to obtain the negative corrected actual value P of the output power of the controllera-', the negative offset correction formula is: pa-’＝Pa-PoffsetNegative correction of the output power by the actual value Pa-' with preset controller maximum allowable output power value PsPerforming real-time comparison if Pa-' greater than PsGo to step A30), if Pa-' less than PsGo to step a 22');
a22'), negative correction of the actual value P of the controller output powera-' carrying out positive deviation correction to obtain a positive corrected actual value P of the output power of the controllera+', the positive offset correction formula is: pa+’＝Pa-’+2*PoffsetCorrecting the output power by the actual value Pa+' with preset controller maximum allowable output power value PsPerforming real-time comparison if Pa+' greater than PsGo to step A30), if Pa+' less than PsProceed to step a 40).
In this embodiment, the operating step of the temperature control protection mode includes:
B10) obtaining the actual temperature value T of the motor winding based on the resistance value change of the motor winding and according to a resistance calculation methodma；
B20) The actual value T of the temperature of the motor windingmaThe preset maximum allowable temperature value T of the motor winding is compared with the preset maximum allowable temperature value TsetPerforming real-time comparison if TmaGreater than TsetGo to step B30), if T ismaLess than TsetGo to step B40);
B30) the fan controller 1 starts an instruction for reducing output current and outputs the current;
B40) return to step B10).
Preferably, in another embodiment, as shown in fig. 12, a step B10') is further included before the step B10): reading actual temperature value T of circuit board by NTC sensor arranged on circuit board of controlleractThe actual temperature value T of the circuit boardactThe preset maximum allowable temperature value T of the motor winding is compared with the preset maximum allowable temperature value TsetPerforming real-time comparison if TactGreater than TsetGo to step B30), if T isactLess than TsetGo to step B10); and step B40') instead of step B40): return to step B10'); step B20') is also used instead of step B20): the actual value T of the temperature of the motor windingmaCarrying out deviation correction to obtain the actual temperature correction value T of the motor windingma', the correction formula is: t isma’＝Tma+Toffset，ToffsetFor a preset winding temperature deviation parameter, in particular, in the present embodiment, ToffsetThe range of (A) can be selected from 0.1 to 3 ℃; correcting the temperature of the motor winding by the actual value Tma' with a preset maximum allowable temperature value T of the motor windingsetPerforming real-time comparison if Tma' greater than TsetGo to step B30), if T isma' less than TsetProceed to step B40).
The method solves the problems of fan motor over-application and fan motor overheating operation by providing an intelligently controlled output power control protection mode and a temperature control protection mode for a fan controller 1, and has the main working idea that the maximum allowable output power value of the controller and the maximum allowable temperature value of a motor winding are respectively preset, then the actual value of the output power of the controller and the actual value of the temperature of the motor winding are respectively calculated in real time, and then whether the output current needs to be reduced or not is judged by corresponding comparison and evaluation to avoid the problems of fan motor over-application and fan motor overheating operation which may occur to the fan motor; on one hand, the embodiment also particularly preferably proposes that negative deviation correction is carried out firstly and then positive deviation correction is carried out for the output power control protection mode, and meanwhile, whether the output current needs to be reduced to avoid the problem of over-application is accurately and reliably judged based on the correction result, on the other hand, the embodiment also particularly preferably proposes positive deviation correction for the temperature control protection mode to accurately and reliably judge whether the output current needs to be reduced to avoid the problem of motor overheating operation, and a temperature sensor is also directly arranged on a circuit board of the fan controller, and when the temperature of a heating element of the circuit board is detected to be higher than the maximum allowable temperature value of a winding of a preset motor, an instruction of immediately entering to reduce the output current is sent out to reduce the temperature, so that the intelligent level of overheating operation protection can be further improved.
Aiming at the existing fan controller product, the user cannot adjust the rotating speed of the fan motor in real time, the speed regulation operation is inconvenient, the preferred speed regulation wire controller of the fan controller 1 is also provided in the embodiment, the speed regulation wire controller of the embodiment is the hand controller 3 described in the foregoing in the embodiment, the speed regulation circuit board 32 is provided with a speed regulation potentiometer knob 35 for regulating the speed regulation parameter, an input key 36 for confirming the speed regulation parameter instruction, and a digital display tube 37 for displaying the online speed regulation parameter, and the speed regulation harness interface 33 is connected with the frequency converter harness interface 121 through a speed regulation four-core harness; the speed regulation four-core wire harness comprises a power line, a voltage control signal line, a speed regulation parameter feedback signal line and a grounding line;
preferably, in this embodiment, the hand controller installation shell 31 includes a speed regulation wire controller installation panel 31a and a speed regulation wire controller installation shell 31b which are fixedly connected into a whole, the speed regulation circuit board 32 is installed on the speed regulation wire controller installation shell 31b, and the knob part 35a of the speed regulation potentiometer knob 35 is installed on the speed regulation wire controller installation panel 31a in a limited manner after penetrating through the speed regulation wire controller installation shell 31 b; the speed regulation wire controller installation panel 31a is provided with a display protection screen 37a corresponding to the digital display tube 37, so that online speed regulation parameters can be conveniently observed during online speed regulation, and the online speed regulation parameters can be conveniently and timely input and confirmed; the speed regulation circuit board 32 is further provided with a speed regulation signal lamp 38 for displaying a speed regulation state, and the speed regulation signal lamp 38 is displayed through the speed regulation line controller installation panel 31a, so that whether the hand controller 3 is currently in an online speed regulation state or not can be conveniently checked and confirmed.
The embodiment newly designs a speed-regulating wire controller (namely a hand controller 3) for real-time online speed regulation of the fan motor, the main structure of the utility model comprises a speed-adjusting potentiometer knob 35 arranged on a speed-adjusting circuit board 32, an input key 36 and a digital display tube 37, meanwhile, a speed regulation wiring harness interface 33 is arranged on the speed regulation circuit board 32, the speed regulation wiring harness interface 33 is connected with a frequency converter wiring harness interface 121 on the controller circuit board 100 through a speed regulation four-core wiring harness, a user can realize real-time online regulation of the rotating speed of the fan motor by directly rotating a knob part 35a of a speed regulation potentiometer knob 35, after a target speed regulation parameter is confirmed, an input key 36 is operated to confirm a target speed regulation parameter instruction, the communication connection through the four-core wire harness of speed governing drives converter chip 110 and carries out online rotational speed regulation, and whole operation process is convenient reliable, can satisfy the demand that the user carries out nimble regulation rotational speed according to actual need.
In order to meet the requirement of highly intelligent control of the present embodiment, the present embodiment further provides a preferable connection control method for the fan controller 1 and the upper computer, the upper computer includes an operation control platform and a hand controller 3, the fan controller 1 includes a USB communication control mode for connecting with the operation control platform and an online speed-adjusting communication control mode for connecting with the hand controller 3; the USB communication control mode comprises a USB-to-serial port communication chip board connected between the frequency converter USB wiring harness interface 123 and the operation control platform, a data monitoring instruction is sent through the operation control platform, the data monitoring instruction is sent to the fan controller 1 by the USB-to-serial port communication chip board, and a data signal sent by the fan controller 1 is transmitted to the operation control platform; the online speed regulation communication control mode comprises a frequency converter wire harness interface 121 and a hand controller 3 which are in communication connection, a speed regulation parameter instruction is sent to the fan controller 1 through the hand controller 3, and the frequency converter chip 110 of the fan controller 1 regulates the rotating speed of the fan motor according to the speed regulation parameter instruction;
preferably, in this embodiment, the data monitoring command includes querying a rotation speed of the fan motor and/or an operation direction of the fan motor; the operation control platform is connected with the USB-to-serial port communication chip board through a USB four-core wire harness, and the USB four-core wire harness comprises a power line, a signal sending line, a signal receiving line and a grounding line; the frequency converter USB wiring harness interface 123 is connected with the USB-to-serial port communication chip board through a USB three-core wiring harness, and the USB three-core wiring harness comprises a power line, a data line and a grounding line;
in the using process, when the rotating speed of the fan motor needs to be adjusted on line, the speed adjusting parameter can be adjusted by rotating the speed adjusting potentiometer knob 35 clockwise or anticlockwise, the input key 36 is operated to confirm the speed adjusting parameter instruction, then the speed adjusting parameter instruction is sent to the frequency converter chip 110 through the speed adjusting four-core wire harness, and the frequency converter chip 110 adjusts the speed of the fan motor on line according to the speed adjusting parameter instruction;
preferably, in this embodiment, the fan controller 1 further includes a fan maximum rotation speed adjustment communication control mode, where the fan maximum rotation speed adjustment communication control mode includes a frequency converter maximum rotation speed wire harness socket 122 and a hand controller 3 that are in communication connection, and sends a fan motor maximum rotation speed parameter instruction to the fan controller 1 through the hand controller 3, and the frequency converter chip 110 of the fan controller 1 adjusts the maximum rotation speed of the fan motor according to the fan motor maximum rotation speed parameter instruction;
on one hand, the fan controller 1 is provided with the frequency converter USB wire harness plug-in port 123, communication connection with the operation control platform is achieved through the USB-to-serial port communication chip board, the operation control platform can be a computer or a mobile phone or other intelligent operation interfaces, when the fan controller is used specifically, an inquiry command is sent through the operation control platform, operation data of a fan motor can be inquired and detected in real time, the fan controller can be used for field data acquisition and problem detection, and control commands such as the rotating speed and the operation direction of the fan motor can also be sent through the operation control platform; on the other hand, this embodiment carries out communication connection through converter pencil interface 121 and hand controller 3, when specifically using, sends speed governing parameter instruction to fan controller 1 through hand controller 3, and fan controller 1's converter chip 110 carries out the rotational speed according to this speed governing parameter instruction to the fan motor and adjusts for this embodiment fan controller 1 can realize higher intelligent control effect, and the communication connection simple structure and the reliability that adopt moreover.
Because the fan controller in the prior art generally sets the factory-set maximum rotating speed limit value, once the fan controller is sent to a user for use, the user cannot adjust the maximum rotating speed on line in subsequent use, and cannot meet the requirement of setting the maximum rotating speed according to the requirement of the user in an actual application scene, therefore, the present embodiment also provides a preferred hand controller 3 capable of real-time adjusting the maximum speed of the blower, the speed-adjusting circuit board 32 is provided with a maximum speed potentiometer knob 41 for adjusting the maximum speed parameter, an input key 42 for confirming the maximum speed parameter instruction, the digital display tube 37 is used for displaying real-time maximum rotating speed parameters, the maximum rotating speed wiring harness interface 34 is connected with the maximum rotating speed wiring harness interface 122 of the frequency converter through a maximum rotating speed four-core wiring harness, and the maximum rotating speed four-core wiring harness comprises a power line, a signal sending line, a signal receiving line and a grounding line;
preferably, in the present embodiment, the knob portion 41a of the maximum rotation speed potentiometer knob 41 is inserted through the hand controller mounting outer case 31b and then is mounted on the hand controller mounting panel 31a in a limited manner; the speed-regulating circuit board 32 is further provided with a signal lamp 39 for displaying the maximum speed parameter regulating state, so as to facilitate checking and confirming whether the hand controller 3 is currently in the maximum speed regulating state.
In this embodiment, a frequency converter maximum rotation speed wire harness interface 122 is creatively arranged on the fan controller 1, and a hand controller 3 capable of adjusting the maximum rotation speed of the fan in real time is newly designed, the hand controller 3 mainly comprises a maximum rotation speed potentiometer knob 41, an input key 42 and a digital display tube 37 which are arranged on a speed regulation circuit board 32, and a maximum rotation speed wire harness interface 34 is arranged on the speed regulation circuit board 32, the maximum rotation speed wire harness interface 34 is connected with the frequency converter maximum rotation speed wire harness interface 122 through a maximum rotation speed four-core wire harness, in the specific implementation, the hand controller 3 and the speed regulation wire controller adopt an integrated hand controller product, the speed regulation circuit board 32 is respectively provided with the maximum rotation speed wire harness interface 34 and the speed regulation wire harness interface 33, and the digital display tube 37 can be respectively used for displaying an online speed regulation parameter (the hand controller 3 is in an online speed regulation state) or a real-time maximum rotation speed parameter (the hand controller 3, compact structure, simple operation.
The embodiment also provides a preferable connection structure of the fan controller 1 and the hand controller 3, the electronic component includes a frequency converter maximum rotation speed wiring harness insertion interface 122 installed on the back of the controller circuit board, meanwhile, the shell bottom plate 20a is provided with a manual operation window 210 corresponding to the position of the frequency converter maximum rotation speed wiring harness insertion interface 122, and the frequency converter maximum rotation speed wiring harness insertion interface 122 is connected with the maximum rotation speed four-core wiring harness insertion interface 34 through the manual operation window 210 for communication control connection with the maximum rotation speed wiring harness insertion interface 34 of the hand controller 3;
preferably, in this embodiment, the electronic component assembly further includes a tact switch 125 and a toggle switch 126 mounted on the back side of the controller circuit board 100, the tact switch 125 is used for program reset, and the toggle switch 126 is used for program burn-in or program adjustment; the installation positions of the tact switch 125 and the toggle switch 126 correspond to the manual operation window 210, so that manual operation is facilitated;
preferably, in the present embodiment, a window protecting cover (not shown) is fixedly mounted on the manual operation window 210, and a wire harness hole for passing through the wire harness is provided on the window protecting cover; further preferably, a plurality of limiting teeth 211 are uniformly distributed on the inner periphery of the manual operation window 210 at intervals, and clamping grooves corresponding to the limiting teeth 211 are formed in the outer periphery of the window protecting cover in limiting clamping connection;
preferably, in order to ensure the mounting strength, in the present embodiment, a reinforcing boss 220 is integrally provided on the outer periphery of the case bottom plate 20a, and the reinforcing boss 220 is connected to the manual operation window 210; the wire harness manual operation window 220 is in a circular shape, and the reinforcing boss 220 is connected with the manual operation window 210 to form an 8-shaped shape.
The embodiment provides the frequency converter maximum rotating speed wire harness socket 122 arranged on the back of the controller circuit board 100, meanwhile, the shell bottom plate 20a is provided with the manual operation window 210 corresponding to the position of the frequency converter maximum rotating speed wire harness socket 122, the frequency converter maximum rotating speed wire harness socket 122 is connected with the maximum rotating speed four-core wire harness in a plug-in mode through the manual operation window 210 and used for being connected with the communication control of the maximum rotating speed wire harness socket 34, the connection scheme is compact and convenient for manual operation, the frequency converter maximum rotating speed wire harness socket is suitable for being used as a connection structure scheme with the hand controller 3, particularly suitable for being used as a structure scheme for carrying out communication connection with the maximum rotating speed wire harness socket 34, a user can switch and connect at any time according to the application field and the scene, the maximum rotating speed of the fan motor can be flexibly set.
On the basis of providing the above structural scheme of the manual controller 3 and the connection structural scheme of the fan controller 1 and the manual controller 3, in order to ensure the safety and the intelligent control performance of the fan controller 1 in this embodiment, this embodiment further provides a preferable control method for the maximum rotation speed of the fan motor, the fan motor is driven and operated by the fan controller 1, priority setting control is adopted, and the priority control sequence is as follows: the method comprises the following steps of (1) always ensuring that a fan motor operates within the maximum safe rotating speed range allowed by the fan motor as a primary control target; the hand controller 3 connected with the fan controller 1 carries out on-line adjustment of the maximum rotating speed of the fan motor to be used as a secondary control target; the fan motor operates in the factory set maximum rotating speed range of the fan controller 1 to serve as a three-level control target; the priority of the secondary control target is smaller than that of the primary control target and larger than that of the tertiary control target; wherein the content of the first and second substances,
referring further to fig. 13, the operation steps of the secondary control target include the following:
s11), rotating the knob part 41a of the maximum rotation speed potentiometer knob 41 clockwise or counterclockwise, to realize the input of the maximum rotation speed parameter of the fan motor; specifically, the maximum rotating speed parameter of the fan motor is specifically set according to a field application scene of a user; the specific numerical value of the maximum rotating speed parameter of the fan motor can be directly displayed through the digital display tube 37 and displayed to the outside through the display protective screen 37 a;
s12), operating the input key 42 to confirm the maximum rotating speed parameter instruction, and simultaneously sending the maximum rotating speed parameter instruction to the fan controller 1 through the maximum rotating speed four-core wire harness;
s13), the fan controller 1 sets the maximum rotation speed parameter instruction as a secondary control target to set the maximum rotation speed of the fan motor on line.
Preferably, in this embodiment, the priority control sequence further includes: carrying out online adjustment on the maximum rotating speed of a fan motor by using a maximum rotating speed adjusting key connected with a fan controller 1 as a secondary control target, wherein the priority of the secondary control target is smaller than that of the secondary control target and is larger than that of the tertiary control target; the maximum rotating speed adjusting key (not shown in the figure) comprises an acceleration adjusting key and a deceleration adjusting key which are arranged on the fan controller 1, and the maximum rotating speed of the fan motor is set on line by selectively operating the acceleration adjusting key or the deceleration adjusting key; particularly preferably, in the present embodiment, the speed-up adjusting key and the speed-down adjusting key are located on the back of the controller circuit board 100 of the fan controller 1, and the installation positions of the speed-up adjusting key and the speed-down adjusting key correspond to the manual operation window 210, so as to facilitate manual operation.
In the embodiment, the maximum rotating speed of the fan motor is controlled and managed by proposing a thought of priority setting control, specifically, the fan motor is always ensured to operate in the highest safe rotating speed range (the highest safe rotating speed of the fan motor is the inherent characteristic parameter existing due to the motor structure) allowed to operate as the first-level priority, the control mode of switching-in type highest rotating speed on-line adjustment through the hand controller 3 is taken as the second-level priority, and finally, the factory-set highest rotating speed range is taken as the third-level priority, in the daily operation process of the actual fan, the user can perform the mode of switching-in adjustment of the highest rotating speed of the fan motor through the hand controller 3 as required in real time, on the premise of always ensuring that the fan motor operates at the safe rotating speed, the maximum rotating speed of the fan motor can be flexibly set, and the use experience level of the user is obviously improved, thereby improving the intelligent control level of the fan controller 1.
The embodiment also provides a preferable integrated installation structure of the fan controller 1 and the filter 2, the filter 2 is connected between an input power supply and the fan controller 1 and is used for filtering the input power supply to the fan controller 1, the controller installation shell 20 is provided with a harness window 230, the input end of the filter 2 is connected to a power harness, and the output harness of the filter is connected to a frequency converter harness plug-in port 121 on the controller circuit board 100 after penetrating through the harness window 230; specifically, in the present embodiment, the power supply harness includes a zero line, a live line, and a ground line, and the filter output harness includes a power supply line and a PWM signal line;
preferably, in the present embodiment, the filter 2 further includes a filter-by-wire box 50, the filter 2 is mounted in the filter-by-wire box 50, and the filter-by-wire box 50 is fixedly mounted on the controller mounting case 20 through the filter mounting base 21; meanwhile, the power supply wire harness and the filter output wire harness are correspondingly and electrically connected with an external power supply and the frequency converter wire harness socket 121 after penetrating through the filter wire control box 50; further preferably, in the present embodiment, the filter-by-wire box 50 includes a filter-by-wire box body 51 and a box cover 52 which are fastened and installed as a whole, and the filter 2 is fixedly installed in the filter-by-wire box body 51;
preferably, in the present embodiment, the filter mounting base 21 is fixedly mounted on the housing wall 20 b; the frequency converter wiring harness interface 121 is fixedly welded on the front surface of the controller circuit board 100.
This embodiment is direct with 2 fixed mounting of wave filter on wave filter mounting base 21, make 2 and fan controller 1 installation become a product wholly, be favorable to the installation compactness, effectively practiced thrift the installation simultaneously and taken up the volume, further preferably propose the structural design of wave filter drive-by-wire box 50 simultaneously, 2 integral erection of wave filter is in wave filter drive-by-wire box 50, simultaneously with the direct fixed mounting of wave filter drive-by-wire box 50 on wave filter mounting base 21, can avoid carrying out the lug connection with the wave filter shell and probably lead to causing the external force damage to wave filter 2 when connecting the installation, effectively carry out safety protection to wave filter 2, and be convenient for install fast.
The embodiment also provides a preferable waterproof structure of the fan controller 1, the wire harness window 230 is provided with a waterproof cover 60 in a sealing manner, and the waterproof cover 60 is provided with 1 or more waterproof mounting holes for sealing a penetrating wire harness;
preferably, in this embodiment, the periphery of the wire harness window 230 is provided with a clamping protrusion 231, and the bottom of the waterproof cover 60 is provided with a clamping groove 61 in clamping fit with the clamping protrusion 231; the waterproof cover 60 is made of rubber and includes 1 or more mounting bosses 62, and a waterproof mounting hole is provided in each mounting boss 62, and particularly preferably, in the present embodiment, the waterproof cover 60 includes 2 mounting bosses 62, and the mounting bosses 62 are conical, and the inner diameter of the mounting bosses on the outer side is smaller than the inner diameter of the mounting bosses on the inner side;
preferably, in the present embodiment, the waterproof cover 60 is provided with a filter waterproof mounting hole 63a for sealing the filter output harness, and the filter output harness is connected to the frequency converter harness insertion port 121 after sealing the filter waterproof mounting hole 63 a; the waterproof cover 60 is provided with a speed regulation waterproof mounting hole 63b for sealing and penetrating through the speed regulation four-core wire harness, and the speed regulation four-core wire harness is connected into the frequency converter wire harness socket 121 after sealing and penetrating through the speed regulation waterproof mounting hole 63 b.
In the embodiment, the waterproof cover 60 is particularly hermetically mounted on the harness window 230 of the controller mounting housing 20, and meanwhile, 1 or more waterproof mounting holes for sealing the through harness are formed in the waterproof cover 60, so that on the premise of realizing the plug-in function of the harness, the sealed mounting of the harness window 230 is realized, and the situation that water or impurities enter the interior through the harness window 230 and further damage the controller circuit board 100 due to the connection of the harness is avoided.
In particular, in order to implement the electrical connection requirement of the various control functions related to this embodiment, it is common knowledge of those skilled in the art that the controller circuit board 100 and the speed-adjusting circuit board related to this embodiment use a PCB or a circuit board with similar effects, the PCB is respectively provided with various electronic components, for example, the controller circuit board 100 is respectively provided with a capacitor, an inductor, a connection terminal, a relay, etc., the speed-adjusting circuit board 32 is respectively provided with a frequency-converting chip for implementing online speed adjustment and a frequency-converting chip for implementing real-time adjustment of the maximum rotation speed of the fan, the speed-adjusting circuit board 32 is provided with various electronic components including a capacitor, an inductor, a connection terminal, an overvoltage protector, etc., which are conventional technical means of circuit connection structures that can be made by those skilled in the art on the basis of the technical solutions described in this, this embodiment is not particularly limited thereto.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A control method for the maximum rotating speed of a fan motor is characterized in that the fan motor is driven by a fan controller to operate, and priority setting control is adopted, wherein the priority control sequence is as follows: the method comprises the following steps of (1) always ensuring that a fan motor operates within the maximum safe rotating speed range allowed by the fan motor as a primary control target; a hand controller connected with a fan controller performs online adjustment of the maximum rotating speed of a fan motor to serve as a secondary control target; the method comprises the following steps of (1) operating a fan motor in a factory-set maximum rotating speed range of a fan controller to serve as a three-level control target; the priority of the secondary control target is smaller than that of the primary control target and larger than that of the tertiary control target; wherein the content of the first and second substances,
the operation steps of the secondary control target include the following:
s11), rotating the maximum rotating speed potentiometer knob of the hand controller clockwise or anticlockwise to realize the input of the maximum rotating speed parameter of the fan motor;
s12), operating the input key to confirm the maximum rotating speed parameter instruction, and simultaneously sending the maximum rotating speed parameter instruction to the fan controller through the wire harness;
s13), the fan controller takes the maximum rotating speed parameter instruction as a secondary control target to set the maximum rotating speed of the fan motor on line.
2. The method of claim 1, wherein the priority control sequence further comprises: carrying out online regulation on the maximum rotating speed of a fan motor by using a maximum rotating speed regulating key connected with a fan controller as a secondary control target, wherein the priority of the secondary control target is smaller than the secondary control target and larger than the tertiary control target; the maximum rotating speed adjusting key comprises an acceleration adjusting key and a deceleration adjusting key which are arranged on the fan controller, and the maximum rotating speed of the fan motor is set on line by selectively operating the acceleration adjusting key or the deceleration adjusting key.
3. The method for controlling the maximum rotating speed of the fan motor according to claim 1, wherein the fan controller comprises a controller mounting shell with an internal mounting space, a controller circuit board is fixedly mounted in the internal mounting space, an electronic component and a frequency converter chip are arranged on the front surface and/or the back surface of the controller circuit board, and the electronic component comprises a frequency converter maximum rotating speed wiring harness socket;
the hand controller comprises a hand controller mounting shell and a speed regulation circuit board mounted on the hand controller, wherein the speed regulation circuit board is provided with a maximum rotating speed potentiometer knob for adjusting maximum rotating speed parameters, an input for confirming maximum rotating speed parameter instructions, a digital display tube for displaying real-time maximum rotating speed parameters and a maximum rotating speed wiring harness socket for connection, and the maximum rotating speed wiring harness socket is connected with the maximum rotating speed wiring harness socket of the frequency converter through wiring harnesses.
4. The method for controlling the maximum rotating speed of the fan motor according to claim 3, wherein the wire harness is a maximum rotating speed four-core wire harness and comprises a power supply wire, a signal sending wire, a signal receiving wire and a grounding wire.
5. The method for controlling the maximum rotation speed of the fan motor according to claim 3, wherein the controller mounting housing includes an integrally formed housing bottom plate and a housing wall extending vertically and integrally along an outer periphery of the housing bottom plate for forming the internal mounting space, and a housing cover plate for sealing the internal mounting space is correspondingly provided at a port portion of the housing wall; the electronic component assembly comprises a frequency converter maximum rotating speed wire harness insertion port arranged on the back face of the controller circuit board, meanwhile, a manual operation window corresponding to the position of the frequency converter maximum rotating speed wire harness insertion port is arranged on the shell bottom plate, and the frequency converter maximum rotating speed wire harness insertion port is connected with a wire harness insertion port through the manual operation window and used for being connected with the maximum rotating speed wire harness insertion port.
6. The method for controlling the maximum rotating speed of the fan motor according to claim 2, wherein the speed-up adjusting button and the speed-down adjusting button are located on the back of a controller circuit board of the fan controller, and the installation positions of the speed-up adjusting button and the speed-down adjusting button correspond to the manual operation window so as to facilitate manual operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346092.8A CN111140528A (en) | 2019-12-24 | 2019-12-24 | Control method for maximum rotating speed of fan motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346092.8A CN111140528A (en) | 2019-12-24 | 2019-12-24 | Control method for maximum rotating speed of fan motor |
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| CN111140528A true CN111140528A (en) | 2020-05-12 |
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| CN201911346092.8A Pending CN111140528A (en) | 2019-12-24 | 2019-12-24 | Control method for maximum rotating speed of fan motor |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158527A (en) * | 1976-08-26 | 1979-06-19 | Ecolaire Incorporated | Adjustable speed drive system for centrifugal fan |
| TWI220442B (en) * | 2003-04-11 | 2004-08-21 | Feature Integration Technology | Multi-speed intelligent fan speed control method |
| CN102307447A (en) * | 2011-08-29 | 2012-01-04 | 中兴通讯股份有限公司 | Heat dissipation method and device |
| CN102595712A (en) * | 2012-01-17 | 2012-07-18 | 佑图物理应用科技发展(武汉)有限公司 | System and method for controlling radiation of light-emitting diode (LED) focus lamp for stage |
| CN103248309A (en) * | 2012-02-10 | 2013-08-14 | Ls产电株式会社 | Method for controlling an inverter |
| US20130230397A1 (en) * | 2012-03-02 | 2013-09-05 | Wistron Corporation | Fan Control Device and Fan Control Method and Cooling System Thereof |
| CN103671187A (en) * | 2012-09-26 | 2014-03-26 | 约克广州空调冷冻设备有限公司 | Method for adaptive adjustment of real-time maximum allowable rotating speed of fan motor |
| CN209145940U (en) * | 2018-11-05 | 2019-07-23 | 杭州赛微电机有限公司 | A kind of permanent-magnet DC brushless centrifugal blower |
-
2019
- 2019-12-24 CN CN201911346092.8A patent/CN111140528A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158527A (en) * | 1976-08-26 | 1979-06-19 | Ecolaire Incorporated | Adjustable speed drive system for centrifugal fan |
| TWI220442B (en) * | 2003-04-11 | 2004-08-21 | Feature Integration Technology | Multi-speed intelligent fan speed control method |
| CN102307447A (en) * | 2011-08-29 | 2012-01-04 | 中兴通讯股份有限公司 | Heat dissipation method and device |
| CN102595712A (en) * | 2012-01-17 | 2012-07-18 | 佑图物理应用科技发展(武汉)有限公司 | System and method for controlling radiation of light-emitting diode (LED) focus lamp for stage |
| CN103248309A (en) * | 2012-02-10 | 2013-08-14 | Ls产电株式会社 | Method for controlling an inverter |
| US20130230397A1 (en) * | 2012-03-02 | 2013-09-05 | Wistron Corporation | Fan Control Device and Fan Control Method and Cooling System Thereof |
| CN103671187A (en) * | 2012-09-26 | 2014-03-26 | 约克广州空调冷冻设备有限公司 | Method for adaptive adjustment of real-time maximum allowable rotating speed of fan motor |
| CN209145940U (en) * | 2018-11-05 | 2019-07-23 | 杭州赛微电机有限公司 | A kind of permanent-magnet DC brushless centrifugal blower |
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