CN102444596B - Fan and manufacture method thereof - Google Patents
Fan and manufacture method thereof Download PDFInfo
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- CN102444596B CN102444596B CN201110293892.5A CN201110293892A CN102444596B CN 102444596 B CN102444596 B CN 102444596B CN 201110293892 A CN201110293892 A CN 201110293892A CN 102444596 B CN102444596 B CN 102444596B
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Abstract
A kind of fan and manufacture method thereof.The object of the present invention is to provide and a kind ofly can utilize simple structure efficiently and fix the fan of miniature circuit substrate accurately.The terminal pins be connected with winding electric is held in insulator, in this insulator covering stator iron core at least partially, and formed by insulating element, terminal pins is configured with multiple between adjacent tooth, and insulator is provided with and abuts and the circuit substrate position restraining portions extended towards axial downside and the circuit substrate abutting part abutted with the upper surface of circuit substrate with the side of circuit substrate.
Description
Technical field
The present invention relates to the electric fan for blowing.
Background technique
In so-called fan in the past, such as, in Japanese Unexamined Patent Publication 2000-209809 publication, circuit substrate is arranged on immediately below motor not exist on the mode of the impact of wind-tunnel, be there is central hole annular shape to be configured at bearing cage periphery.On this circuit substrate, in order to realize the conducting of winding and circuit substrate, scattering device 3 terminal pins on each tooth.In addition, there is following method: when the electronic unit carried is less, circuit substrate is set to circular shape from annular shape in the past.Such as in Japan Patent No. 2844712 publication, disclose the circuit substrate being formed as arc-shaped.The projection of insulator lower end and terminal pins is utilized to keep this circuit substrate.In addition, such as, in Japanese Unexamined Patent Publication 09-222093 publication, terminal pins is arranged on circuit substrate unevenly.Further, circuit substrate makes circuit substrate lower surface abut with insulator lower end, and is fixed by terminal pins.
But, when not needing the fan of complex control, constitute control circuit with a small amount of electronic unit.Now, when the larger circuit substrate adopting annular shape such, this circuit substrate may produce the wasted space not having configuration circuit pattern and electronic unit.
In addition, the manufacture method of general circuit substrate is print each pattern on laminal mother substrate, cuts circuit substrate afterwards from lamellar mother substrate, to become the mode of annular shape as described above or circular shape.Profit in this way time, exist as inferior problem: the quantity of the circuit substrate that can obtain from 1 lamellar mother substrate exists restriction, after cutting required circuit substrate from mother substrate, occurs much remaining substrates that will give up.
Therefore, want to cut more circuit substrate from lamellar mother substrate, and substrate is given up in minimizing as far as possible.In order to meet this requirement, need the size reducing circuit substrate.
But in the fan that have employed circuit substrate in the past, there is boundary in the miniaturization of circuit substrate.Why like this, be because as described above on each tooth scattering device terminal pins, therefore need the allocation position place configuration circuit substrate in terminal pins.
Further, when making circuit substrate miniaturization when the configuration position collecting terminal pins, make workability when terminal pins and circuit substrate electrical connection poor with soldering etc.Even if while relative to the position of insulator holding circuit substrate and inclination, carry out soldering to circuit substrate and terminal pins, because circuit substrate is small-sized, therefore position and inclination unstable, thus worry that the workability of soldering reduces.
In addition, in the electronic unit being equipped on circuit substrate, there is the position detecting element carrying out the position probing of rotor.In the electronic unit carrying out position probing, rotor magnet and the position relationship between stator iron core and position detecting element are to the important elements that rotation detects and rotary speed precision has an impact.Therefore, highi degree of accuracy is needed to ensure to carry the position relationship between the circuit substrate of electronic unit and stator iron core.
Summary of the invention
Therefore, the object of the present invention is to provide and a kind ofly can utilize simple structure efficiently and fix the fan of miniature circuit substrate accurately.
Fan in one aspect of the present invention is a kind of DYN dynamic fan, it is characterized in that having: stator department, rotor part, it rotates centered by central shaft, gear mechanism, described rotor part is supported for and can rotates relative to described stator department by it, and blade, it is held in described rotor part, and described stator department has: stator iron core, and it is opposed with the magnet of described rotor part, and and produce torque between described magnet, insulator, it is formed by insulating element, covers described stator iron core at least partially, terminal pins, it is held in described insulator, is connected with winding electric, and circuit substrate, it is the tabular substantially vertical with described central shaft, is maintained at the side of the described central axis direction of described stator iron core, and is electrically connected with described terminal pins, and described stator iron core has the core back of ring-type, and multiple tooth, they radially extend from core back, and there is circumferentially spaced front end, described terminal pins is configured with multiple between adjacent tooth, described insulator is provided with and abuts and the circuit substrate position restraining portions extended towards axial downside with the side of described circuit substrate, and the circuit substrate abutting part to abut with the upper surface of described circuit substrate, described circuit substrate position restraining portions has radial position limiting unit and circumferential position limiting unit, this radial position limiting unit is arranged at correspondence portion, core back, and limit radial position by abutting with circuit substrate, this circumferential position limiting unit is arranged at the front end in tooth correspondence portion in the mode making circuit substrate radially to slide to locate, and limit circumferential position by abutting with circuit substrate, described insulator has the terminal pins holding part keeping described terminal pins, described terminal pins holding part is formed at the correspondence portion, core back of described insulator and the correspondence portion, front end of tooth.
Another aspect of the present invention provides a kind of manufacture method of DYN dynamic fan, it is characterized in that, described fan has: stator department, rotor part, it rotates centered by central shaft, gear mechanism, described rotor part is supported for and can rotates relative to described stator department by it, and blade, it is held in described rotor part, and described stator department has: stator iron core, and it is opposed with the magnet of described rotor part, and produces torque between described magnet, insulator, it is formed by insulating element, covers described stator iron core at least partially, terminal pins, it is held in described insulator, is connected with winding electric, and circuit substrate, it is the tabular substantially vertical with described central shaft, be maintained at the side of the described central axis direction of described stator iron core, and be electrically connected with described terminal pins, described insulator has circuit substrate position restraining portions, this circuit substrate position restraining portions abuts with a part for the side of described circuit substrate diametrically, and towards axially downside extension, described circuit substrate position restraining portions has radial position limiting unit and circumferential position limiting unit, this radial position limiting unit is arranged at correspondence portion, core back, and limit radial position by abutting with circuit substrate, this circumferential position limiting unit is arranged at the front end in tooth correspondence portion in the mode making circuit substrate radially to slide to locate, and limit circumferential position by abutting with circuit substrate, described insulator has the terminal pins holding part keeping described terminal pins, described terminal pins holding part is formed at the correspondence portion, core back of described insulator and the correspondence portion, front end of tooth, the manufacture method of this fan comprises following operation: (a) assembles described insulator on described stator iron core, b () reels described winding on described stator iron core, and be electrically connected with described terminal pins, c () makes described circuit substrate side abut with the described radial position limiting unit of described circuit substrate position restraining portions and position, and described terminal pins is electrically connected with described circuit substrate by (d).
According to the present invention, can provide a kind of and utilize simple structure efficiently and fix the fan of miniature circuit substrate accurately.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the axial fan that the 1st mode of execution of the present invention is shown.
Fig. 2 is the worm's eye view of stator iron core and lower isolator.
Fig. 3 is the stereogram of stator iron core and upper lower insulator.
Fig. 4 is the side view of stator iron core and upper lower insulator.
Fig. 5 is the worm's eye view of circuit substrate.
Fig. 6 is the worm's eye view of stator iron core, circuit substrate and lower isolator.
Fig. 7 is the side view of stator iron core, upper lower insulator and circuit substrate.
Fig. 8 is the worm's eye view of the stator iron core of the 2nd mode of execution of the present invention, circuit substrate and lower isolator.
Fig. 9 is the stator iron core of the 3rd mode of execution of the present invention, the stereogram of upper lower insulator.
Figure 10 is the worm's eye view of the stator iron core of the 4th mode of execution of the present invention, circuit substrate and lower isolator.
Embodiment
Fig. 1 is the longitudinal section of the axial fan 100 that the 1st mode of execution of the present invention is shown.Axial fan 100 has electrodynamic type motor 3, is fixed on multiple blades 2 of the rotor part 31 of motor, surrounds the shell 4 of the periphery of motor 3 and supports multiple connected elements 5 of motor 3.Shell 4 is connected with motor 3 by connected element 5.Shell 4 and connected element 5 utilize the molding and forming of resin and are formed as parts.In addition, in FIG, in order to illustrate conveniently, the outline shape of blade 2 and connected element 5 is shown in the left and right of central shaft J1.
Motor 3 has: the rotor part 31 as solid of rotation, the stator department 32 as fixed body, the roughly cylindric retainer 332 with the end being fixed on stator department 32 and the sleeve 331 of cylindrical shape kept by retainer 332.Rotor part 31 is positioned at upside along central shaft J1 relative to stator department 32.In the following description, conveniently, with rotor part 31 side along central shaft J1 be upside, stator department 32 side is described for downside, but central shaft J1 does not need certain consistent with gravitational direction.In addition, as long as when there is no special provision, by the radial direction centered by central shaft J1 referred to as " radial direction ", by the circumference centered by central shaft J1 referred to as " circumference ".
Rotor part 31 has: the metal rotor retainer 312 having the roughly impeller cup 311 of cylindrical shape of lid, the cylindrical shape centered by central shaft J1, the axle 314 being installed on the roughly cylindric rotor magnet 313 inside impeller cup 311 across rotor retainer 312 and giving prominence to downwards from the center upper portion of impeller cup 311.Multiple blade 2 extends to radial outside from the periphery of impeller cup 311.Stator department 32 has base part 321 in bottom.The retainer 332 extended towards upside is formed in the central authorities of base part 321.Maintain sleeve 331 at the inner peripheral surface of retainer 332, maintain stator iron core 323 at its outer side surface.Downside on the central shaft J1 direction of stator iron core 323, is configured with the circuit substrate 322 of the rectangular shape substantially vertical with central shaft J1.Base part 321 is fixed on the inner side surface of shell 4 by connected element 5, and by other positions in retainer 332 support stator portion 32.
Stator department 32 also has: the silicon steel plate of laminated thin tabular and formed stator iron core 323, by the upper and lower of coating stator iron core 323 and the upper portion insulating body 324 formed parts of its insulation and lower isolator 325, the coil 326 formed from the top coiled electrical conductor of upper portion insulating body 324 and lower isolator 325 and the metal terminal pins 327 conducted realizing coil 326 and circuit substrate 322, circuit substrate 322 is mounted in the below of lower isolator 325 and is held in lower isolator 325.
Stator iron core 323 is opposed diametrically with the rotor magnet 313 of rotor part 31, there is provided electric current from external power supply (omitting diagram) to coil 326 via circuit substrate 322, thus produce the torque centered by central shaft J1 between stator iron core 323 and rotor magnet 313.The circuit substrate 322 of the motor 3 as DC (direct current: direct current) brushless motor is provided with position detecting element 3221 and drive circuit (omitting diagram).Position detecting element 3221 relative to rotor magnet 313 overlapping configuration on the direction parallel with central shaft J1, and detects the pole change at the opposed position of rotor magnet 313.Further, according to the voltage exported from Hall element, the sense of current being supplied to coil 326 is switched by drive circuit.
Sleeve 331 is the roughly cylindrical shapes centered by central shaft J1, in the outside of sleeve 331, is provided with the outer side surface of cover sleeve 331 and the roughly cylindric retainer 332 with the end of bottom, and in sleeve 331, inserts the axle 314 of rotor part 31.In sleeve 331, be soaked with lubricant oil, by retainer 332, lubricant oil remained in sleeve 331.
Gear mechanism 33 is made up of sleeve 331, retainer 332, axle 314 and lubricant oil.Rotor part 31 is supported for and can rotates relative to stator department 32 by gear mechanism 33.Further, in axial fan 100, rotor part 31 and blade 2 rotate centered by central shaft J1, produce the air flowing in central shaft J1 direction thus from the upside Fig. 1 towards downside.
Fig. 2 is the worm's eye view of stator iron core 323 and lower isolator 325.Fig. 3 is the stereogram observed from downside of stator iron core 323 and upper lower insulator 324,325.Fig. 4 is the side view of stator iron core 323 and upper lower insulator 324,325.As shown in Figure 2, stator iron core 323 has the core back 3231 of ring-type; And four of T-shaped teeth 3232, they extend towards radial outside from the periphery at core back 3231 centered by central shaft J1, and spaced front end 3233 is expanded towards the both sides of circumference in outside.As shown in Figure 2, Figure 3 and Figure 4, the upper surface of the upper surface at core back 3231 of the ring-type of the coating stator iron core 323 of upper lower insulator 324,325 and the outer circumferential side of lower surface and side, tooth 3232 and lower surface and the side except front end 3233.Lower isolator 325 has the correspondence portion, core back 3251 that ring-type centered by central shaft J1 is arranged and four the tooth correspondence portions 3252 covering tooth 3232.
As shown in Figures 2 and 3, lower isolator 325 is provided with the circuit substrate position restraining portions 3253, circuit substrate abutting part 3257 and the terminal pins holding part 3259 that extend towards axial downside.Circuit substrate position restraining portions 3253 has radial position limiting unit 3254 at place of correspondence portion 3251, core back, has circumferential position limiting unit 3255 in the front end in tooth correspondence portion 3252.Circuit substrate abutting part 3257 is provided with 63 positions totals, lays respectively at the periphery of terminal pins holding part 3259.Terminal pins holding part 3259 is provided with 1 at place of correspondence portion 3251, core back, and the front end in the adjacent tooth correspondence portion 3252 of extension from this correspondence portion, core back 3251 is provided with 2.Circuit substrate abutting part 3257 in the circumferential both sides of terminal pins holding part 3259 respectively every two form as one.Radial position limiting unit 3254 abuts with the side of circuit substrate 322, limits the radial position of circuit substrate 322.Circumferential position limiting unit 3255 abuts with the side of circuit substrate 322, limits the circumferential position of circuit substrate 322.Terminal pins holding part 3259 has the function keeping terminal pins 327.Terminal pins holding part 3259 is positioned at radial outside compared to radial position limiting unit 3254 and arranges.
Terminal pins holding part 3259 and the circuit substrate abutting part 3257 of the front end in the tooth correspondence portion 3252 at circumferential position limiting unit 3255,1 position are integrally arranged.In addition, circuit substrate abutting part 3257 is formed from the giving prominence to facing to axial downside of axially downside of terminal pins holding part 3259.That is, the axially downside of circuit substrate abutting part 3257 face, formed with different height with the face (terminal pins holding surface) of the axially downside of terminal pins holding part 3259.That is, as shown in Figure 4, the lower surface of circuit substrate abutting part 3257 is formed at axial downside compared to the lower surface of terminal pins holding part 3259.By being set to this structure, circuit substrate 322 described later is abutted in the axial direction with circuit substrate abutting part 3257.When terminal pins 327 is soldered to circuit substrate 322, the position extended towards coil 326 from the copper cash being wound up into terminal pins 327 is incorporated between the lower surface of circuit substrate abutting part 3257 and the lower surface of terminal pins holding part 3259.Therefore, it is possible to the broken string preventing the edge of copper cash contact circuit substrate 322 and produce.In addition, as shown in Figure 4, the lower surface of circuit substrate position restraining portions 3253 is positioned at axial downside further compared to the lower surface of circuit substrate abutting part 3257.By being set to this structure, when above-mentioned terminal pins 327 is soldered to circuit substrate 322, circuit substrate abutting part 3257 can be made to have the function of the axially locating of the lower isolator 325 relative to circuit substrate 322, and make circuit substrate position restraining portions 3253 have radial location relative to the lower isolator 325 of circuit substrate 322 and circumferential locating function.
Then circuit substrate 322 is described.Fig. 5 is the worm's eye view of circuit substrate 322.Fig. 6 is the worm's eye view of stator iron core 323, circuit substrate 322 and lower isolator 325, shows a part of profile of stator iron core 323, lower isolator 325 and position detecting element 3221 with double dot dash line.Fig. 7 is the side view of stator iron core 323, upper lower insulator 324,325 and circuit substrate 322.In addition, in Fig. 5, Fig. 6 and Fig. 7, the plate-like body of circuit substrate 322 is shown, and eliminate the electronic unit being assemblied in plate-like body a part, be equipped with the bonding land (land) of electronic unit and the diagram of wiring pattern, eliminate the diagram of coil 326 in the figure 7.As shown in Figure 5, circuit substrate 322 is formed as rectangular shape.Circuit substrate 322 is provided with terminal pins hole 3222 at 3 positions, the switch-in part 3223 after outside diameter is provided with the angle part cutting rectangle.The bonding land formed by Copper Foil is formed around the lower surface in terminal pins hole 3222.When carrying out soldering to terminal pins 327 and circuit substrate 322, it is higher that this bonding land is formed as soakage, makes solder easily deadlocked, thus make the wiring pattern conducting of terminal pins 327 and control circuit.As shown in Figure 1, arrange this switch-in part 3223 with make circuit substrate 322 close at from the end on observation of base part 321 to round-shaped in.
In addition, as shown in Figure 1 and Figure 6, circuit substrate 322 is provided with position detecting element 3221.Position detecting element 3221 is arranged between rotor magnet 313 and the radial direction of stator iron core 323 and between the circumference of adjacent tooth front end 3233.Position detecting element 3221 needs to be arranged at aforementioned location accurately, and therefore circuit substrate 322 needs the region extending to radial outside, until the position of configurable position detecting element 3221.
Then, the manufacture method of the axial fan 100 in the present embodiment shown in Fig. 1 is described.First, on stator iron core 323, assemble top insulator 324 from above-below direction respectively and make terminal pins 327 be pressed into the lower isolator 325 (insulator assembly process) remaining to terminal pins holding part 3259.Then, to reel on stator iron core 323 coil 326 across upper portion insulating body 324 and lower isolator 325, and the end of coil 326 is strapped to (winding rolling step) in terminal pins 327.Then, for the purpose of the conducting of terminal pins 327 and coil 326, the position of copper cash is had to carry out soldering (preparation soldering operation) in the bundle of terminal pins 327.Then, in circuit substrate 322, run through inserted terminals pin 327, and circuit substrate 322 is electrically connected with terminal pins 327, relative to terminal pins 327 permanent circuit substrate 322.
The fixed operation of circuit substrate 322 will be described in further detail.First, lower isolator 325 is configured to compare stator iron core 323 and is presented axially in opposition side.Then, in the terminal pins hole 3222 at 3 positions being formed at circuit substrate 322, run through inserted terminals pin 327 (terminal pins runs through insertion operation) respectively.Now, the inner peripheral surface width in terminal pins hole 3222 is larger than the Extreme breadth in the cross section of the terminal pins 327 vertical with central shaft J1.That is, terminal pins 327 has play relative to terminal pins hole 3222 in the Vertical direction of central shaft J1.Then, the upper surface of circuit substrate 322 is made to abut with circuit substrate abutting part 3257.Then, circuit substrate 322 is made to slide to abut with circuit substrate position restraining portions 3253.Now, by making the side of circuit substrate 322 abut with both radial position limiting unit 3254 and circumferential position limiting unit 3255, determine the position (circuit substrate positioning process) of circuit substrate 322 relative to stator iron core 323.Further, behind the position determining circuit substrate 322, carry out the soldering of terminal pins 327 on circuit substrate 322 (circuit substrate connection operation), make circuit substrate be fixed on lower isolator 325.By manufacturing in this way, can permanent circuit substrate accurately, and improve workability.
In addition, terminal pins insertion operation can be contrary with the order of circuit substrate positioning process.By carrying out circuit substrate positioning process before terminal pins inserts operation, the terminal pins hole 3222 of circuit substrate 322 can be made consistent on the in-plane of circuit substrate 322 with terminal pins 327.Be inserted in terminal pins hole 3222 thereby, it is possible to terminal pins 327 is successfully run through.Therefore, the lower end of terminal pins 327 needs the lower end comparing radial position limiting unit 3254 and circumferential position limiting unit 3255 to be positioned at top.
Can abut with circuit substrate position restraining portions 3253 by making the side of circuit substrate 322, determine the position of circuit substrate 322 relative to stator iron core 323, carry out being placed in the accurate location at central shaft J1 vertical in-plane of position detecting element 3221 relative to rotor magnet 313 of circuit substrate 322.More specifically, fix by making the side of circuit substrate 322 abut with both radial position limiting unit 3254 and circumferential position limiting unit 3255, position detecting element 3221 is configured between the radial direction of rotor magnet 313 and stator iron core 323, and between the circumference of adjacent tooth front end 3233.Circuit substrate position restraining portions 3253 and circuit substrate abutting part 3257 is abutted to respectively by making the side of circuit substrate 322 and upper surface, circuit substrate 322 can be prevented in the inclination relative to central shaft J1 of the positional deviation of the in-plane vertical with central shaft J1 and circuit substrate 322, can with correct position and inclination relative to circuit substrate 322 soldering terminal pins 327.The face contacted with circuit substrate 322 of circuit substrate position restraining portions 3253 and the outer side surface of circuit substrate 322 are formed as almost parallel.By parallel formation, determine circuit substrate 322 and the contact direction of circuit substrate position restraining portions 3253, in the plane vertical with central shaft J1, determine the inclination of circuit substrate 322 relative to circuit substrate position restraining portions 3253.
Fig. 8 is the worm's eye view of the stator iron core 323 of the axial fan of the 2nd mode of execution of the present invention, circuit substrate 322 and lower isolator 325a, shows a part of profile of stator iron core 323, lower isolator 325a and position detecting element 3221 with double dot dash line.At core back 3251 place of lower isolator 325a, along core back 3251 in circuit substrate abutting part 3257 side of radial position limiting unit 3254, be formed with ladder surface 3258 with radial position limiting unit 3254.Other structures except ladder surface 3258 in lower isolator 325a are identical with the lower isolator 325 illustrated in the 1st mode of execution.
The lower end surface that ladder surface 3258 compares radial position limiting unit 3254 is arranged at axial upside, is identical axial height, and has the function that circuit substrate is abutted with circuit substrate abutting part 3257.Therefore, when holding circuit substrate 322, the upper surface of circuit substrate 322 also abuts with ladder surface 3258 while abutting with circuit substrate abutting part 3257.Herein, when carrying out soldering operation, while carrying out supporting to make the stable mode of circuit substrate 322, by terminal pins 327 soldering to circuit substrate 322.Now, by keeping the position (periphery of radial position limiting unit 3254 and circumferential position limiting unit 3255) close to the gabarit of circuit substrate 322, holding circuit substrate 322 is stablized relative to lower isolator 325.
Fig. 9 is the stereogram of the stator iron core 323 of the axial fan that the 3rd mode of execution of the present invention is shown and upper lower insulator 324,325b.The radial position limiting unit 3254b of lower isolator 325b has the projection 3256 extended towards radial outside in underpart.Other structures except radial position limiting unit 3254b of lower isolator 325b are identical with the lower isolator 325 illustrated in the 1st mode of execution.
As shown in Figure 9, by being provided with projection 3256, the lower surface of circuit substrate 322 can be pressed with the upper surface of projection 3256.Utilize this projection 3256 and circuit substrate abutting part 3257, can when carrying out soldering operation, be limited in operator when having pressed the radial outside region of circuit substrate 322 towards lower isolator 325b side, produce the inclination of circuit substrate 322 relative to central shaft J1.Therefore, operator can stablize the soldering operation carrying out terminal pins 327 and circuit substrate 322.In addition, ladder surface 3258 (open in the 2nd mode of execution) is set together with projection 3256 on radial position limiting unit 3254b, can permanent circuit substrate 322 more reliably.In addition, the thickness of the lower surface of the upper surface of projection 3256 and circuit substrate abutting part 3257 gap size in the axial direction and circuit substrate 322 is roughly equal.Thereby, it is possible to reduce circuit substrate 322 relative to central shaft J1 play in an inclined direction.
Figure 10 is the worm's eye view of the stator iron core 323 of the 4th mode of execution of the present invention, circuit substrate 322 and lower isolator 325c.A part of profile of stator iron core 323 and lower isolator 325c is shown with double dot dash line.With the line segment L of the terminal pins holding part 3259 in correspondence portion, connecting core back 3251 and central shaft J1 for benchmark, lower isolator 325c with the position of radial position limiting unit 3254 substantial line symmetry on be provided with radial position limiting unit 3254c.Precisely, the profile of combined circuit substrate 322d configures, and therefore in the present embodiment, in Fig. 10, radial position limiting unit 3254c compares radial position limiting unit 3254 and is positioned at upside.Radial position limiting unit 3254,3254c are respectively formed in correspondence portion, core back 3251.In addition, with line segment L for benchmark, lower isolator 325c with the position of circumferential position limiting unit 3255 substantial line symmetry on be provided with circumferential position limiting unit 3255c.Precisely, the profile of combined circuit substrate 322d configures, and therefore in the present embodiment, in Fig. 10, circumferential position limiting unit 3255c compares circumferential position limiting unit 3255 and is positioned at upside.Circumferential position limiting unit 3255,3255c are respectively formed in tooth correspondence portion 3252.Lower isolator 325c except radial position limiting unit 3254c other structures except circumferential position limiting unit 3255c identical with the lower isolator 325 illustrated in the 1st mode of execution.
As shown in Figure 10, terminal pins holding part 3259 is between two circumferential position limiting units 3255,3255c.In addition, terminal pins holding part 3259 compares radial position limiting unit 3254,3254c is positioned at radial outside.Further, lower isolator 325 limits three directions of the side of circuit substrate 322 by circuit substrate position restraining portions 3253.Therefore, circuit substrate 322 can insert by sliding from radial outside, and abuts with each circuit substrate position restraining portions 3253, thus reliably determines position.
Above, describe the present invention according to preferred implementation, but such description is not limit item, certainly can carry out various change.Such as, in the above-described embodiment, use axial fan to be illustrated, but also can use centrifugal cutter.In addition, in the above-described embodiment, employ sleeve bearing as gear mechanism, but also can use ball bearing.Further there is illustrated the projection 3256 shown in the 3rd mode of execution to extend from radial position limiting unit 3254b towards radial outside, but also can from circumferential position limiting unit 3255 circumferentially.About circuit substrate abutting part, radial position limiting unit, circumferential position limiting unit, terminal pins holding part, be not limited to said structure, combined circuit substrate shape can suitably change respective configuration relation etc.
Claims (14)
1. a DYN dynamic fan, wherein, this DYN dynamic fan has:
Stator department;
Rotor part, it rotates centered by central shaft;
Gear mechanism, described rotor part is supported for and can rotates relative to described stator department by it; And
Blade, it is held in described rotor part,
Described stator department has:
Stator iron core, it is opposed with the magnet of described rotor part, and and produce torque between described magnet;
Insulator, it is formed by insulating element, covers described stator iron core at least partially;
Terminal pins, it is held in described insulator, is connected with winding electric; And
Circuit substrate, it is the tabular with described central axis, is maintained at the side of the described central axis direction of described stator iron core, and is electrically connected with described terminal pins,
Described stator iron core has: the core back of ring-type; And multiple tooth, the plurality of tooth radially extends from core back, and has circumferentially spaced front end,
Described terminal pins is configured with multiple between adjacent tooth,
On described insulator, be provided with and abut and the circuit substrate position restraining portions extended towards axial downside and the circuit substrate abutting part abutted with the upper surface of described circuit substrate with the side of described circuit substrate,
Described circuit substrate position restraining portions has radial position limiting unit and circumferential position limiting unit, this radial position limiting unit is arranged at correspondence portion, core back, and by abutting the radial position limiting described circuit substrate with circuit substrate, this circumferential position limiting unit is arranged at the front end in tooth correspondence portion in the mode making circuit substrate radially to slide to locate, and by abutting the circumferential position limiting described circuit substrate with circuit substrate
Described insulator has the terminal pins holding part keeping described terminal pins,
Described terminal pins holding part is formed at the correspondence portion, core back of described insulator and the correspondence portion, front end of tooth.
2. fan according to claim 1, wherein,
This terminal pins holding part compares described radial position restriction site in radial outside.
3. fan according to claim 2, wherein,
Described circuit substrate abutting portion in the periphery of described terminal pins holding part,
The lower surface of described circuit substrate abutting part is positioned at axial downside relative to keeping the terminal pins holding surface of described terminal pins.
4. fan according to claim 1, wherein,
Described circuit substrate position restraining portions has ladder surface at the axially upside place relative to its lower surface,
This ladder surface is described circuit substrate abutting part.
5. fan according to claim 1, wherein,
The lower end of described circuit substrate position restraining portions extends on the downside of axially relative to the lower end of described circuit substrate abutting part.
6. fan according to claim 1, wherein,
Place of correspondence portion, described core back is provided with 1 described terminal pins holding part, the front end in the adjacent teeth correspondence portion of extension from this correspondence portion, core back is provided with 2 described terminal pins holding parts.
7. fan according to claim 1, wherein,
The projection that the lower end of described circuit substrate position restraining portions has radially or circumference extends, and abut with the lower surface of described circuit substrate.
8. fan according to claim 2, wherein,
The position extended from the copper cash be wound up into described terminal pins towards winding is incorporated between the lower surface of described circuit substrate abutting part and the lower surface of described terminal pins holding part.
9. fan according to claim 7, wherein,
The upper surface of described projection is equal with the thickness of described circuit substrate with the lower surface gap size in the axial direction of described circuit substrate abutting part.
10. fan according to claim 1, wherein,
Described circuit substrate is rectangular shape, between the circumference being configured in adjacent tooth front end.
The manufacture method of 11. 1 kinds of DYN dynamic fans, is characterized in that,
Described fan has:
Stator department;
Rotor part, it rotates centered by central shaft;
Gear mechanism, described rotor part is supported for and can rotates relative to described stator department by it; And
Blade, it is held in described rotor part,
Described stator department has:
Stator iron core, it is opposed with the magnet of described rotor part, and produces torque between described magnet;
Insulator, it is formed by insulating element, covers described stator iron core at least partially;
Terminal pins, it is held in described insulator, is connected with winding electric; And
Circuit substrate, it is the tabular with described central axis, is maintained at the side of the described central axis direction of described stator iron core, and is electrically connected with described terminal pins,
Described insulator has circuit substrate position restraining portions, and this circuit substrate position restraining portions abuts with a part for the side of described circuit substrate diametrically, and towards axially downside extension,
Described circuit substrate position restraining portions has radial position limiting unit and circumferential position limiting unit, this radial position limiting unit is arranged at correspondence portion, core back, and by abutting the radial position limiting described circuit substrate with circuit substrate, this circumferential position limiting unit is arranged at the front end in tooth correspondence portion in the mode making circuit substrate radially to slide to locate, and by abutting the circumferential position limiting described circuit substrate with circuit substrate
Described insulator has the terminal pins holding part keeping described terminal pins,
Described terminal pins holding part is formed at the correspondence portion, core back of described insulator and the correspondence portion, front end of tooth,
The manufacture method of this fan comprises following operation:
A () assembles described insulator on described stator iron core;
B () reels described winding on described stator iron core, and be electrically connected with described terminal pins;
C () makes the side of described circuit substrate abut with described circuit substrate position restraining portions and position; And
D described terminal pins is electrically connected with described circuit substrate by ().
The manufacture method of 12. fans according to claim 11, wherein,
In the operation of described (c) and (d), first carry out (c) operation compared to described (d) operation.
The manufacture method of 13. fans according to claim 11, wherein,
In the operation of described (c) and (d), first carry out (d) operation compared to described (c) operation.
The manufacture method of 14. fans according to claim 11, wherein,
The lower end of described terminal pins is positioned at top relative to the lower end of described circuit substrate position restraining portions.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-224916 | 2010-10-04 | ||
| JP2010224916A JP5707834B2 (en) | 2010-10-04 | 2010-10-04 | fan |
Publications (2)
| Publication Number | Publication Date |
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| CN102444596A CN102444596A (en) | 2012-05-09 |
| CN102444596B true CN102444596B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110293892.5A Active CN102444596B (en) | 2010-10-04 | 2011-09-29 | Fan and manufacture method thereof |
| CN2011203703049U Expired - Fee Related CN202417974U (en) | 2010-10-04 | 2011-09-29 | Electric fan |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203703049U Expired - Fee Related CN202417974U (en) | 2010-10-04 | 2011-09-29 | Electric fan |
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| Country | Link |
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| JP (1) | JP5707834B2 (en) |
| CN (2) | CN102444596B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5707834B2 (en) * | 2010-10-04 | 2015-04-30 | 日本電産株式会社 | fan |
| JP2014121210A (en) * | 2012-12-18 | 2014-06-30 | Sanyo Denki Co Ltd | Axial flow fan |
| US20160013696A1 (en) | 2014-07-09 | 2016-01-14 | Apple Inc. | Motor interconnect device |
| JP2020088990A (en) * | 2018-11-20 | 2020-06-04 | 日本電産株式会社 | Stator unit, motor, and fan motor |
| JP2021010214A (en) * | 2019-06-28 | 2021-01-28 | 日本電産株式会社 | motor |
| JP7434746B2 (en) * | 2019-07-31 | 2024-02-21 | ニデック株式会社 | motor |
| JP2023139620A (en) | 2022-03-22 | 2023-10-04 | ニデックアドバンスドモータ株式会社 | Housing of axial flow fan and axial flow fan |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101136563A (en) * | 2006-08-31 | 2008-03-05 | 日本电产株式会社 | Fan and motor used thereto |
| CN101494399A (en) * | 2008-01-25 | 2009-07-29 | 松下电工株式会社 | Motor and motor integrated pump with the motor |
| JP2010093905A (en) * | 2008-10-06 | 2010-04-22 | Sanyo Denki Co Ltd | Brushless motor stator |
| CN202417974U (en) * | 2010-10-04 | 2012-09-05 | 日本电产株式会社 | Electric fan |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3545215B2 (en) * | 1998-07-21 | 2004-07-21 | 愛知電機株式会社 | Brushless motor |
| CN2695687Y (en) * | 2004-04-17 | 2005-04-27 | 鸿富锦精密工业（深圳）有限公司 | Improved fan device |
| JP5360473B2 (en) * | 2008-05-16 | 2013-12-04 | 日本電産株式会社 | Motor and blower fan using the same |
-
2010
- 2010-10-04 JP JP2010224916A patent/JP5707834B2/en active Active
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2011
- 2011-09-29 CN CN201110293892.5A patent/CN102444596B/en active Active
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101136563A (en) * | 2006-08-31 | 2008-03-05 | 日本电产株式会社 | Fan and motor used thereto |
| CN101494399A (en) * | 2008-01-25 | 2009-07-29 | 松下电工株式会社 | Motor and motor integrated pump with the motor |
| JP2010093905A (en) * | 2008-10-06 | 2010-04-22 | Sanyo Denki Co Ltd | Brushless motor stator |
| CN202417974U (en) * | 2010-10-04 | 2012-09-05 | 日本电产株式会社 | Electric fan |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012077703A (en) | 2012-04-19 |
| JP5707834B2 (en) | 2015-04-30 |
| CN102444596A (en) | 2012-05-09 |
| CN202417974U (en) | 2012-09-05 |
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