CN1941568B - Brushless DC motor and manufacturing method thereof - Google Patents
Brushless DC motor and manufacturing method thereof Download PDFInfo
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- CN1941568B CN1941568B CN2006101393200A CN200610139320A CN1941568B CN 1941568 B CN1941568 B CN 1941568B CN 2006101393200 A CN2006101393200 A CN 2006101393200A CN 200610139320 A CN200610139320 A CN 200610139320A CN 1941568 B CN1941568 B CN 1941568B
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Abstract
A brushless DC motor includes an embedded memory of a micro computer mounted on a circuit board which can be modified during and/or after a manufacturing process of the brushless DC motor. The circuit board installed on the brushless DC motor includes an IC having the embedded micro computer executing feed back control of the pulse wide modulation and the embedded memory for storing data such as control programs. The circuit board also includes a writing terminal port to which an external memory writer is to be connected. Data is transferred from the external memory writer and stored in the embedded memory by contacting the writing terminal port with a tip end portion of a cable from the external memory writer.
Description
Technical field
The present invention relates generally to a kind of brshless DC motor, relate more specifically to a kind of like this brshless DC motor, this brshless DC motor comprises the rotation control section that is used for based on this motor rotation of the Data Control that is stored in memory, and is used to provide the drive circuit by the drive current of described rotation control section control.
Background technology
Brshless DC motor is used for various application, the electronic product of for example handling official business, domestic electronic appliances and auto electronic product.In some applications, need control the rotation of this brshless DC motor accurately.
The rotation control section of these brshless DC motors can be equipped with the IC with integrated microcomputer.Usually, microcomputer has in-line memory, and the microcomputer that is used to rotate control section comprises control program, and this control program is supplied to the drive current of stator based on rotary state, temperature and the external signal adjustment of motor.Compare with the motor that does not have this control section, comprise that the motor of this rotation control section may make rotation control complicated more.
Traditionally, use read-only nonvolatile memory (ROM) to be used for the in-line memory of microcomputer.Control program such as the FEEDBACK CONTROL program is stored on the ROM of microcomputer.Then, the microcomputer that will have a ROM is installed on the circuit board that is mounted on the brshless DC motor.
Can be mounted in control program on the ROM by modification, and multiple modification is carried out in the rotation setting of this brshless DC motor.
Usually, use the in-line memory of two kinds of memories: disposable programmable read-only memory (OTP-ROM) and electro-erasable programmable ROM (EEP-ROM or flash memory) as microcomputer.OTP-ROM compares comparatively cheap with flash memory, have the product of the microcomputer (OTP microcomputer) of OTP-ROM as large-scale production so use usually.Yet, when changing product design or structure, need to change the OTP microcomputer on the motor, because can not revise the program that is stored on the OTP-ROM.If microcomputer has been installed on the circuit board, the circuit board that perhaps has this microcomputer has been installed on the motor, and then changing this microcomputer will be heavy and consuming time operation, and this has influenced the manufacturing efficient of motor greatly.And the OTP microcomputer that is replaced need abandon or store so that they are used for other model once more, and this makes that the manufacturing efficient of motor is poorer.OTP microcomputer itself is cheap, but because above-mentioned heavy and consuming time operation, making to have traditional brshless DC motor costliness of OTP microcomputer and make it commercialization needs more time.
When the control section of design motor, often need the ROM data of motor, and need be equipped with the brshless DC motor of such microcomputer, wherein need be during the manufacturing of motor or visit the in-line memory of microcomputer afterwards.Yet circuit board is installed in the inside of brshless DC motor usually, so can not conduct interviews from the motor outside usually.
Summary of the invention
In order to overcome the problems referred to above, the preferred embodiments of the present invention provide a kind of brshless DC motor, in this brshless DC motor, during manufacture process and/or afterwards, the in-line memory that is installed in the microcomputer on the circuit board are made amendment.
According to a preferred embodiment of the present invention, a kind of brshless DC motor comprises: rotor portion, this rotor portion can be that rotate at the center with the central axis, and comprise a magnet; Standing part, this standing part comprises the armature towards described magnet, and by forming around the stator core wrap wire; Bearing, this bearing is with respect to the described rotor portion of described standing part rotatably support; Be electrically connected to described armature and towards the circuit board of described armature; Rotate control section, this rotation control section is located on the described circuit board and comprises Nonvolatile rewriteable memory, is used for based on the rotation that is stored in the described rotor portion of Data Control on the described Nonvolatile rewriteable memory; Drive circuit, this drive circuit is located on the described circuit board, is used to provide the drive current by described rotation control section control; With the terminal port that writes that is located on the described circuit board, the external memory storage write device is detachably connected to this and writes on the terminal port.
According to another preferred embodiment of the invention, described motor also comprises: be located at the impeller on the described rotor portion; Bearing pedestal with hollow cylindrical shape, the inboard of this bearing pedestal support the outside of described bearing and this bearing pedestal and support described armature; The base portion that extends radially outwardly from described bearing pedestal; Around described impeller and limit the housing of gas channel; And supporting arm, this supporting arm supports described base portion by connecting described housing and described base portion with respect to described housing.Described circuit board axially is located between described armature and the described base portion.
According to another preferred embodiment of the invention, the said write terminal port be located at described circuit board on the base portion side surface of described base portion, described base portion comprises and writes opening that described external memory storage write device is detachably connected on the said write terminal port by the said write opening.By this structure, can revise the setting of described motor or design and need not change the described circuit board of having installed.
Usually, a part of exposing described circuit board by the described rotor portion of pulling down described motor.Therefore, can visit the described circuit of described motor usually from the described rotor-side (described armature side) of described circuit board.In another preferred embodiment of the present invention, the said write terminal port is located on the described armature side of described circuit board, even the said write terminal port can not be from the described base portion side visit of described circuit board, also can be from the described armature side visit of described circuit board, this make can be after described motor manufacturing and/or during on memory, write data.In addition, after making described motor, can easily revise the setting of described motor and not change hardware configuration.Therefore, needn't abandon or the circuit board of memory change and/or such as the electronic component of microcomputer reusing them, and make the manufacturing of described motor more efficient.
According to another preferred embodiment of the invention, the circuit board of described motor can comprise the extension that stretches out from the base portion of described motor, and the said write terminal port can be arranged on this extension.According to another preferred embodiment of the invention, the circuit board of described motor can comprise on its side and writes terminal port.According to another preferred embodiment of the invention, the outside is set writes terminal port, this outside writes terminal port and is connected on the said write terminal port by assist with cable.
By said structure, during described motor manufacturing and/or afterwards, can easily visit the said write terminal port that is located on the described circuit board.Therefore, revise easily the described data that are stored on the described memory, and the rotation that can revise all fans is as described set and is not changed hardware configuration.In addition, needn't abandon or the circuit board of memory change and/or such as the electronic component of microcomputer reusing them, and make the manufacturing of described motor more efficient.
Also provide a kind of manufacturing to be equipped with the method for the described fan of described motor.According to a preferred embodiment of the invention, described manufacture method comprises the data write step, in this data write step, by described circuit board being connected with the cable that is connected to the external memory storage write device and on the described memory of described fan, writing tentation data.In described data write step, the top of described cable contacts the said write terminal port from the armature side joint of described circuit board.
In addition, can carry out described data write step after being fixed on described armature on the described base portion then in that described circuit board is connected with described armature.In addition, described manufacture method can further comprise the inspection step of the rotation of checking described fan, the demounting procedure of dismounting rotor portion, and described data write step.The described rotor portion that is considered to the described fan of defective fan during described inspection step is removed and carries out described data write step once more.
Further feature of the present invention, element, step, process, characteristic and advantage will be from following with reference to becoming more obvious the detailed description of accompanying drawing to the preferred embodiment of the present invention.
Description of drawings
Fig. 1 is the stereogram according to the aerofoil fan of first preferred embodiment of the invention.
Fig. 2 is the cutaway view at the aerofoil fan shown in Fig. 1.
Fig. 3 is mounted in the plane graph of the circuit board on the aerofoil fan.
Fig. 4 is the plane graph of aerofoil fan under the state that its impeller assembly is removed according to second preferred embodiment of the invention.
Fig. 5 represents a detector (connector of control cable), and this detector is a part that is used for data are write the external equipment on the in-line memory that is installed in the microcomputer on the aerofoil fan.
Fig. 6 represents the cutaway view of the aerofoil fan of one improvement preferred embodiment according to the present invention.
Fig. 7 represents that another improves the cutaway view of the aerofoil fan of preferred embodiment according to the present invention.
Fig. 8 represents that another improves the cutaway view of the aerofoil fan of preferred embodiment according to the present invention.
Fig. 9 represents that another improves the cutaway view of the aerofoil fan of preferred embodiment according to the present invention.
Figure 10 represents that another improves the cutaway view of the aerofoil fan of preferred embodiment according to the present invention.
Figure 11 is mounted in the plane graph according to the circuit board on the aerofoil fan of third preferred embodiment of the invention.
Figure 12 represents the cutaway view in the state that its impeller assembly 40 is removed of being in of aerofoil fan.
Figure 13 illustrates the flow chart of the manufacture method of aerofoil fan according to the preferred embodiment of the invention.
Figure 14 illustrates the flow chart of the manufacture method of aerofoil fan according to the preferred embodiment of the invention.
Figure 15 represents the stereogram according to the aerofoil fan of second preferred embodiment of the invention.
Figure 16 represents the stereogram according to the aerofoil fan of second preferred embodiment of the invention.
Figure 17 is the stereogram according to the aerofoil fan of four preferred embodiment of the invention.
Embodiment
Referring to figs. 1 through 17, will describe the preferred embodiments of the present invention in detail, wherein use brshless DC motor as the motor that is used for the aerofoil fan of cooling computer.In the following description, axial direction is represented the longitudinal direction of pivot center, and radial direction is represented the direction perpendicular to the center of rotation axis of brshless DC motor.
(first preferred embodiment)
With reference to Fig. 1 to 3 first preferred embodiment of the present invention is described below.Aerofoil fan 1 shown in Fig. 1 comprises motor (brshless DC motor), is installed in the impeller 4 on this motor and supports this motor and be set to radially to surround the housing 2 of impeller 4.Housing 2 is made of hollow cylinder 3, upper flange part 30, bottom flange part 35, base portion 80 and a plurality of supporting arm 9, and they are formed integrally as single parts by synthetic resin.Hollow cylinder 3 radially surrounds impeller 4.Upper flange part 30 is located at the radial outside of the upper shed of hollow cylinder, and bottom flange part 35 is located at the radial outside of bottom opening.Base portion 80 is at hollow cylinder 3 internal support motors and impeller 4.Thereby a plurality of supporting arms 9 radially extend to hollow cylinder 3 support base 80 from base portion 80.Space between cylinder 3 and the base portion 80 constitutes gas channel.Air is from end opening suction and by the outside of described space row to housing 2.Base portion 80 comprises towards impeller 4 axially extended periphery walls, thereby makes base portion 80 form cup-shaped.
As shown in Figure 2, impeller 4 comprises cup-shaped electric machine casing 6 and a plurality of blade 7 that is located at electric machine casing 6 outer peripheral face places.Thereby motor main body 5 is inserted in the electric machine casing 6 and is made electric machine casing 6 be installed on the rotor portion of motor.Central portion office at base portion 80 is provided with columnar shaft bearing 85.At these bearing pedestal 85 internal fixation pair of bearings is arranged, and be fixed with armature 10 in the outside of this bearing pedestal 85.This is located at rotation axis 5a in impeller 4 middle bodies to the bearing rotating support, thereby impeller 4 is mounted pivotably.Yoke 65 fixed magnets 68 are passed through in inboard at electric machine casing 6, thereby make this magnet 68 towards armature 10.Armature 10 comprises the stator core that forms by lamination silicon-steel plate.On stator core, be formed with insulating barrier, and on the part of stator core, twine wired thereon to form coil.In the motor of the preferred embodiment according to the present invention, the standing part of motor is made of bearing pedestal 85 and base portion 80, and rotor portion is made of yoke 65 and rotation axis 5a.
The drive circuit that the control part of motor main body 5 comprises rewritable nonvolatile memory (flash memory), is used for the rotation control section that rotates based on the Data Control motor that is stored on this memory and is used to provide the drive current of being controlled by the rotation control section.Control part forms by using microcomputer to carry out the FEEDBACK CONTROL of pulse-width modulation (PWM).In order to carry out FEEDBACK CONTROL, circuit board 110 comprises microcomputer integrated circuit 12 (hereinafter referred is IC 12), and this integrated circuit has embedded microcomputer, stores the in-line memory of the data and the program that are used for FEEDBACK CONTROL.
As shown in Figure 3, circuit board 110 is roughly annular, and it has the central opening of the bearing pedestal 85 that inserts base portion 80.The internal diameter of the periphery wall of the external diameter of circuit board 110 and base portion 80 is roughly the same.Circuit pattern is printed on the both sides of circuit board 110, comprises that the electronic component of IC 12 is installed on the side 111 of circuit board 110, and a described side 111 is towards base portion 80.Fig. 3 shows the part of circuit pattern and element.By the connection pin on a plurality of insulators that are located at armature 10 is welded on the circuit board 110, and circuit board 110 is fixed on the armature 10.Coil is connected on this connection pin, is electrically connected thereby make coil be connected pin with circuit board 110 by this.
Peripheral part office in the base portion side of circuit board 110 is provided with the external connection port 13 that comprises a plurality of terminal pins 131.The end of cable M is welded on the external connection port 13, and its other end is connected on external power source and/or the external control circuit.As shown in Figure 1, base portion 80 comprises wiring opening 14 and is located at a guiding groove on the supporting arm 9 that the cable M that is connected to terminal pins 131 is directed to the outside of housing 2 by this guiding groove.
As shown in Figure 2, circuit board 110 is contained in the base portion 80 of cup-shaped roughly, and comprises the control part with IC 12 at it on a side 111 of base portion 80.Be provided with on the side 111 of base portion 80 equally and write terminal port 150 on the in-line memory that data is write IC 12 at this circuit board.
In the preferred embodiment of the present invention, write terminal port 150 and constitute by five terminal pins 151 that are connected to in-line memory by the circuit pattern (not shown).Write terminal port 150 and external memory storage write device by connecting, data can be write on the in-line memory with the control cable.
The process that the data of storing on the in-line memory of the IC 12 that is installed on aerofoil fan 1 are made amendment is described below.At first, cut off the power supply of aerofoil fan 1.Secondly, the detector 160 that is located on the top of the control cable that extends from the external memory storage write device is inserted wiring openings 14, the top of detector 160 is connected to writes terminal port 150 then.The 3rd, by activating the external program write device, can revise the data on the in-line memory that is stored in IC 12.After the data on revising in-line memory, close visit to memory to prevent to be stored in the data leak on the memory or to be changed.For example, can close wiring opening (writing opening) on the base portion 80 by famous brand is installed in.Perhaps, rectangular cap can be installed to close wiring opening 14.
Writing terminal port 150 is configured to towards wiring opening 14.Therefore, identical with external connection port 13, write terminal port 150 is exposed to aerofoil fan 1 by wiring opening 14 the outside.In other words, in the preferred embodiment of the present invention, wiring opening 14 writes opening also as writing opening thereby needn't be provided with separately.The structure of the aperture area by reducing base portion 80 can suitably keep the rigidity of base portion 80.
The top of detector 160 comprises shape and the identical rectangle part 162 of wiring opening 14.From the top of detector 160 to the distance of rectangle part 162 with roughly the same to the distance of wiring opening 14 from writing terminal port 150.According to said structure, insert in the wiring opening 14 by rectangle part 162 detector 160, make five terminal pins 161 and write terminal port 150 and aim at and be electrically connected.Perhaps, can terminal pins 161 and wiring opening 14 be aimed at only by aiming at the edge or the sidepiece of wiring opening 14 and rectangle part 162.
(second preferred embodiment)
With reference to Fig. 4,12,15 and 16 second preferred embodiment of the present invention is described below.In the preferred embodiment of the present invention, wiring opening and/or write opening and be not located on the base portion writes on the armature side that terminal part is located at circuit board.All the other structures of aerofoil fan 1A with in first preferred embodiment, illustrate identical, therefore will omit its detailed description.
By wire loop (for example C shape ring) being installed in the circular recess of being located on the 5a top and the axle 5a of retainer shaft flow fan 1.That is, unclamp a 5a by pulling down wire loop.Therefore, the impeller assembly 40 (rotor portion) that is made of impeller 4, magnet 68, yoke 65 and axle 5a of aerofoil fan 1 can easily be pulled down from standing part, as shown in figure 12.And, can impeller assembly 40 easily be maintained fixed on the part by wire loop is installed.
Describe below data are write process on the in-line memory of the IC 12 that is installed in aerofoil fan 1.At first, cut off the power supply of aerofoil fan 1.Secondly, under the state that impeller assembly 40 is pulled down from aerofoil fan 1, the detector 160 of the control cable of external memory storage write device is inserted the housing 2 from one distolateral (with respect to armature 10 sides of circuit board 110) of housing, the top of detector 160 is connected to writes terminal port 150.The 3rd, by activating the external program write device, can revise the data on the in-line memory that is stored in IC 12.After writing data on the in-line memory, close visit to memory to prevent to be stored in the data leak on the memory or to be changed.
In the preferred embodiment of the present invention, circuit board 110 is roughly axially covered by base portion 80.By said structure, only otherwise through hole or notch part are set on base portion 80, detector 160 just can not be connected to circuit board 110 from base portion side.Therefore, under being installed in state on the standing part, impeller assembly 40 do not carry out the data write step.
As another example, as shown in figure 15, the preferred embodiments of the present invention are preferably applied to brshless DC motor, are provided with insulating material 200 in this brshless DC motor between circuit board 110 and base portion 80.Brshless DC motor with the housing 2 that is made of electric conducting material (for example aluminium diecasting) is included in the insulating material 200 between circuit board 110 and the base portion 80.Therefore, detector 160 is not connected to circuit board from base portion 80 sides of brshless DC motor.
In addition, under impeller assembly 40 was not installed in state on the standing part, armature 10 can not write terminal port 150 upper shaft to stretching out.Therefore, suitably kept writing terminal port 150 observability in the axial direction, thereby can be beneficial to the data write step.In addition, because suitably kept writing terminal port 150 observability in the axial direction, write terminal port 150 so can detector 160 be touched by line movement.Therefore, when detector 160 be installed in be used to assemble according to the automation of aerofoil fan of the present invention on the time, can simplify the action of automation.
(the 3rd preferred embodiment)
With reference to Figure 11 the 3rd preferred embodiment of the present invention is described below.In the preferred embodiment of the present invention, aerofoil fan 1 is included in the circuit board 115 shown in Figure 11, rather than at the circuit board shown in Fig. 3 110.Circuit board 115 has from the radially-protruding extension in the neighboring of base portion 80.In addition, circuit board 115 comprises that on this extension formation writes the terminal pins 151 of terminal port 150.In this structure, a part flow through hollow cylinder 3 air-flow by towards the center fed of circuit board 115 with cooling electronic components.In addition, can heat sensor be set at extension 156 places.By this structure, further improved the observability that writes terminal port, thereby connected writing between terminal port 150 and the detector 160 easily.
(the 4th preferred embodiment)
With reference to Figure 17 the 4th preferred embodiment of the present invention is described below.In the preferred embodiment of the present invention, as shown in figure 17, the control cable is connected on circuit board 110 and 115 by assist with cable 19, thereby connects between control cable and circuit board and need not to be in direct contact with one another (cable M is not shown in Figure 17).In other words, an end of assist with cable 19 is connected on the terminal pins 0b that writes terminal port 150 that is arranged on circuit board 110 or 115, and the other end of assist with cable 19 is connected on the external circuit board 20a that is arranged in housing 2 outsides.The external circuit board 20a comprise have a 26S Proteasome Structure and Function similar to writing terminal port 150 write terminal port 15B.
The external circuit board 20a can be fixed on the shell that was arranged in 2 minutes with housing, thereby removably the external circuit board 20 is installed on the housing 2.Perhaps, the external circuit board 20a can be installed on the device that aerofoil fan 1 installed.In addition, when the in-line memory to microcomputer write data, this shell can be used as the supporting member of the external circuit board 20a.Perhaps, the external circuit board 20 can be directly installed on the outside of housing 2.
Assist with cable 19 also can be used as cable M.In this case, can on aerofoil fan 1, DIP switch be set.DIP switch switches to the connection of cable M when dump and writes terminal port.By this structure, reduced the number of cables of drawing from aerofoil fan 1.
(writing terminal port)
Writing under the incorrect situation of aiming at of terminal port 150 and detector 160, the data write error mistake then may take place.Therefore, write terminal port 150 and detector 160 is correctly aimed in order correctly to write data, need to make.For example, as shown in Figure 7, connector C1 on the top that is separately positioned on detector 160 and writes terminal port 150 and C2 are connected to each other so that detector 160 and write terminal port 150 and aim at.Perhaps, as shown in Figure 8, can make to be arranged on the connector C3 that writes on the terminal port 150 and the connector C1 of detector 160 is connected to each other.Perhaps, as shown in Figure 9, can current-carrying part be set being provided with on the circuit board 110 on through hole C4 and the inner peripheral surface at this through hole of qualification C4 of circuit board 110.Connector C1 ' can be inserted among the through hole C4 then.Perhaps, as shown in figure 10, the bossing 163 on notch part C5 that is located on the circuit board 110 and the rectangle part 162 that is located at detector 160 is contacted with each other so that write terminal port 150 and detector 160 alignings.Make the example that writes terminal port 150 and detector 160 alignings though in aforementioned content, described, be not limited to above-mentioned example, because can carry out various modifications.
According to a preferred embodiment of the invention, after being installed in IC in the aerofoil fan, can easily revise the data on the in-line memory that is stored in IC.Therefore, can revise the setting of aerofoil fan 1 or design and need not deposit circuit board 110 and the IC 12 that has installed or change IC 12.In other words, can be stored in the data on the IC that is installed on the aerofoil fan 1 and need not to increase greatly cost and program consuming time with the effective and efficient manner modification.In addition, because adopt the in-line memory of flash memory, so can revise arbitrary number of times to data as IC.
Simultaneously, the aerofoil fan of assembling comprises the aerofoil fan of assembling fully and the aerofoil fan of part assembling.The aerofoil fan of part assembling for example comprises: circuit board 110 is equipped with microcomputer 12 thereon; The assembly that constitutes by housing 2, armature 10, described pair of bearings and circuit board 110; And the assembly that constitutes by armature 10 and circuit board 110.
(manufacture method of aerofoil fan)
The manufacture method of aerofoil fan will be described below.
Before aerofoil fan is about to delivery with storage under the situation on the in-line memory of the IC 12 of aerofoil fan 1, then revise data by method as shown in figure 13.
At first, impeller assembly 40 is pulled down from standing part.Pull down by the C shape ring that will be located on the 5a top ends, an axle 5a becomes and can move axially, thereby impeller assembly 40 is pulled down from standing part.Expose by pulling down impeller assembly 40, make the terminal port 150 that writes that is located on the circuit board 110.Then, thus detector 160 is electrically connected to write on the terminal port 150 revises the data that are stored on the memory.Then, impeller assembly 40 is installed on the standing part and checks its rotation with regard to current waveform, velocity of rotation or the like.If in aerofoil fan, find mistake, then pull down impeller assembly 40 and data are transferred to memory once more.
With reference to Figure 14, focus on that the data write step describes the manufacture method of aerofoil fan 1 in detail.In the preferred embodiment, on the in-line memory of IC 12, write about rotating the tentation data of control.Before writing data on the memory, IC 12 is installed on the circuit board 110.Therefore, the manufacture process that the IC with tentation data 12 on the circuit board 110 is supplied to aerofoil fan 1 will be installed in.
At first, the coil on making circuit board 110 and being formed on armature 10 is electrically connected.Secondly, on the base portion 80 that the circuit board 110 that is electrically connected to each other and armature 10 are installed to housing 2.With adhesive armature 10 is bonded on the outer peripheral face of bearing pedestal 85 of the central portion office that is arranged at base portion 80.Therefore, in case the adhesive sclerosis, armature 10 and circuit board 110 just are not easy separately.
The 3rd, described a pair of ball bearing is fixed on the inboard of bearing pedestal 85, and the part of axle 5a, impeller assembly 40 is inserted in the described a pair of ball bearing, thereby make an axle 5a be mounted pivotably by this bearing.The 4th, to circuit board 110 power supplies, and the rotation of inspection impeller assembly 40.In this step, check various factors, for example the current waveform of velocity of rotation, the motor of flowing through, in the velocity of rotation of impeller assembly when motor transmits control signal 40.For these factors provide predetermined standard, and non-compliant motor is thought the defective motor.The reason of defective for example is at the write error on the IC 12, in the defective of write error data, IC 12 on the IC 12 and the defective of the electronic component except that IC 12.When finding the defective motor, the impeller assembly 40 of defective motor is pulled down and IC 12 is write data once more.
Though in aforementioned content, described embodiments of the invention, the invention is not restricted to the embodiment of above detailed description, because can carry out various modifications.
For example, circuit board 110 and 115 can be any suitable circuit board, for example flexible PCB and the rigid circuit board that formed by metal, glass epoxy board or paper impregnated phenolic resin plate.
In addition, write on the side surface that terminal port is located at circuit board, can be connected to this from radial direction from the control cable of external memory storage write device and write on the terminal port.
In addition, can between said write terminal port and described external memory storage write device, connect with wireless mode.For example, the wireless signal receiver such as infrared signal receiver can be connected on the said write terminal port, and wireless signal transmitter is connected on the described external memory storage write device.
Although the preferred embodiments of the present invention described above it should be understood that, to one skilled in the art, under situation about not departing from the scope of the present invention with spirit, variations and modifications all are conspicuous.Therefore, only be indicated in the appended claims scope of the present invention.
Claims (19)
1. brshless DC motor, this brshless DC motor comprises:
Rotor portion, this rotor portion can be that rotate at the center with the central axis, and comprise a magnet;
Standing part, this standing part comprises the armature towards described magnet, and by forming around the stator core wrap wire;
Bearing, this bearing is with respect to the described rotor portion of described standing part rotatably support;
Be electrically connected to described armature and towards the circuit board of described armature;
Rotate control section, this rotation control section is located on the described circuit board and comprises Nonvolatile rewriteable memory, is used for based on the rotation that is stored in the described rotor portion of Data Control on the described Nonvolatile rewriteable memory;
Drive circuit, this drive circuit is located on the described circuit board, is used to provide the drive current by described rotation control section control; With
Be located at the terminal port that writes on the described circuit board, the external memory storage write device is detachably connected to this and writes on the terminal port.
2. brshless DC motor according to claim 1 is characterized in that, this brshless DC motor also comprises:
Be located on the described rotor portion to produce the impeller of air-flow;
Bearing pedestal with hollow cylindrical shape, inboard described bearing of supporting of this bearing pedestal and the described armature of this bearing pedestal outside supporting;
The base portion that extends radially outwardly from described bearing pedestal;
Around described impeller and limit the housing of gas channel; And
Supporting arm, this supporting arm supports described base portion by connecting described housing and described base portion with respect to described housing,
Wherein said circuit board axially is arranged between described armature and the described base portion.
3. brshless DC motor according to claim 2, it is characterized in that, the said write terminal port be located at described circuit board on the base portion side surface of described base portion, described base portion comprises and writes opening that described external memory storage write device is detachably connected on the said write terminal port by the said write opening.
4. brshless DC motor according to claim 3, it is characterized in that, described circuit board comprises external connection port, cable from external power source and/or external control circuit is connected on this external connection port, and described cable is guided to the outside of described brshless DC motor by the said write opening.
5. brshless DC motor according to claim 4, it is characterized in that, described external memory storage write device and said write terminal port removably are connected by the control cable, and are resisted against by the top ends with described control cable at least a portion of qualification said write opening of described base portion described top ends is aimed at the said write terminal port.
6. brshless DC motor according to claim 3, it is characterized in that, described external memory storage write device and said write terminal port removably are connected by the control cable, and are resisted against by the top ends with described control cable at least a portion of qualification said write opening of described base portion described top ends is aimed at the said write terminal port.
7. brshless DC motor according to claim 2, it is characterized in that, the said write terminal port is located at the position on the armature side surface of described armature of described circuit board, and this position of arranging the said write terminal port from the outboard end position of described armature radially outward.
8. brshless DC motor according to claim 7 is characterized in that, the base portion side surface towards described base portion of described circuit board is roughly covered by described base portion.
9. brshless DC motor according to claim 8 is characterized in that, is provided with insulating material between described circuit board and described base portion, and the described base portion side surface of described circuit board is roughly covered by described insulating material.
10. brshless DC motor according to claim 7 is characterized in that, is provided with insulating material between described circuit board and described base portion, and the base portion side surface towards described base portion of described circuit board is roughly covered by described insulating material.
11. brshless DC motor according to claim 2 is characterized in that, described circuit board comprises from the radially-protruding extension of described base portion, and the said write terminal port is located on the described extension.
12. brshless DC motor according to claim 2, it is characterized in that, described external memory storage write device removably is connected by the control cable with the said write terminal port, and the top ends of described control cable radially is detachably connected on the said write terminal port.
13. brshless DC motor according to claim 12 is characterized in that, the said write terminal port is located on the side surface of described circuit board.
14. brshless DC motor according to claim 2, it is characterized in that, one end of assist with cable is connected on the said write terminal port, the other end of described assist with cable is connected to the outside and writes on the terminal port, is detachably connected to described outside from the described control cable of described external memory storage write device and writes on the terminal port.
15. brshless DC motor according to claim 1 is characterized in that, described circuit board comprises connector on the said write terminal port, is detachably connected on this connector from the control cable of described external memory storage write device.
16. brshless DC motor according to claim 1 is characterized in that, described circuit board comprises hole or notch part, aims at by described hole or notch part from the top ends and the said write terminal port of the control cable of described external memory storage write device.
17. brshless DC motor according to claim 1 is characterized in that, on the said write terminal port wireless signal receiver is installed, described external memory storage will be connected with described circuit board with wireless mode.
18. a method of making brshless DC motor according to claim 7, this manufacture method comprises:
A) Connection Step wherein makes described circuit board and described armature be electrically connected;
B) fixing step wherein is fixed on described armature and described circuit board on the described base portion; And
C) data write step, wherein by the said write terminal port is contacted with top ends from the cable of described external memory storage write device with data from described external memory storage write device transmission and be stored on the described Nonvolatile rewriteable memory that is arranged on the described circuit board, wherein said top ends is from the armature side contacts said write terminal port of described motor with respect to described circuit board
D) installation steps wherein are installed in rotation on rotor portion on the described standing part.
19. a method of making brshless DC motor according to claim 7, this manufacture method comprises:
A) Connection Step wherein makes described circuit board and described armature be electrically connected;
B) fixing step wherein is fixed on described armature and described circuit board on the described base portion;
C) installation steps wherein are installed in rotation on rotor portion on the described standing part;
D) check step, wherein check the rotation of described rotor portion;
If find described brshless DC motor defectiveness in described step d), then this manufacture method also comprises:
E) demounting procedure is wherein pulled down the described rotor portion of described brshless DC motor;
F) data write step, wherein by the said write terminal port is contacted with top ends from the cable of described external memory storage write device with data from described external memory storage write device transmission and be stored on the described Nonvolatile rewriteable memory that is arranged on the described circuit board, wherein said top ends is from the armature side contacts said write terminal port of described motor with respect to described circuit board; And
G) installation steps wherein are installed in rotation on rotor portion on the described standing part.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005275222A JP4815968B2 (en) | 2005-09-22 | 2005-09-22 | Brushless DC motor |
| JP2005-275222 | 2005-09-22 | ||
| JP2005275222 | 2005-09-22 | ||
| JP2006247045 | 2006-09-12 | ||
| JP2006247045A JP4287451B2 (en) | 2006-09-12 | 2006-09-12 | Motor, blower fan and blower fan manufacturing method |
| JP2006-247045 | 2006-09-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1941568A CN1941568A (en) | 2007-04-04 |
| CN1941568B true CN1941568B (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101393200A Active CN1941568B (en) | 2005-09-22 | 2006-09-22 | Brushless DC motor and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4815968B2 (en) |
| CN (1) | CN1941568B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024129B (en) * | 2009-09-22 | 2015-03-11 | 三星电子株式会社 | Data writing method of embedded equipment |
| JP5718980B2 (en) | 2013-06-04 | 2015-05-13 | 山洋電気株式会社 | Fan motor, serial type fan motor, and assembly method thereof |
| CN105763014A (en) * | 2016-04-07 | 2016-07-13 | 温州的可电器有限公司 | Micro brushless DC motor |
| WO2017188436A1 (en) * | 2016-04-28 | 2017-11-02 | 日本電産サーボ株式会社 | Blower device |
| JP2018014869A (en) * | 2016-07-23 | 2018-01-25 | 日本電産株式会社 | Fan motor and manufacturing method for the same |
| CN108233637A (en) * | 2016-12-22 | 2018-06-29 | 日本电产（东莞）有限公司 | Electrodynamic type motor and the electric product for including the electrodynamic type motor |
| JP7028220B2 (en) * | 2019-04-25 | 2022-03-02 | 株式会社デンソー | How to write data to circuit-mounted motors, control devices, and control circuits |
| CN114696543A (en) * | 2022-04-25 | 2022-07-01 | 东莞市锦润电机科技有限公司 | Partition method of brushless motor |
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| US5925948A (en) * | 1996-02-19 | 1999-07-20 | Minebea Co., Ltd. | Axial flow fan motor |
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| JPH10155283A (en) * | 1996-11-19 | 1998-06-09 | Ebara Corp | Inverter |
| DE19836882A1 (en) * | 1998-08-14 | 2000-02-17 | Papst Motoren Gmbh & Co Kg | Electric motor has characteristic field stored as digital values for associating parameter and motor speed values, and microcontroller or microprocessor |
| JP3856973B2 (en) * | 1999-02-02 | 2006-12-13 | 日本電産株式会社 | Fan device |
| JP2002205010A (en) * | 2001-01-09 | 2002-07-23 | Citizen Watch Co Ltd | Brushless vibration motor unit |
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| US4832576A (en) * | 1985-05-30 | 1989-05-23 | Sanyo Electric Co., Ltd. | Electric fan |
| US5925948A (en) * | 1996-02-19 | 1999-07-20 | Minebea Co., Ltd. | Axial flow fan motor |
| CN2447985Y (en) * | 2000-09-19 | 2001-09-12 | 建准电机工业股份有限公司 | Brushless DC motor with balancing piece fixing structure |
| CN1549430A (en) * | 2003-05-07 | 2004-11-24 | ��Ħ��������ʽ���� | Servo motor with a built-in drive circuit |
| CN2666025Y (en) * | 2003-09-28 | 2004-12-22 | 陈玉敏 | Permanent-magnet brushless DC motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1941568A (en) | 2007-04-04 |
| JP2007089313A (en) | 2007-04-05 |
| JP4815968B2 (en) | 2011-11-16 |
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