CN102761203A - Motor and disk drive apparatus - Google Patents
Motor and disk drive apparatus Download PDFInfo
- Publication number
- CN102761203A CN102761203A CN2012101134451A CN201210113445A CN102761203A CN 102761203 A CN102761203 A CN 102761203A CN 2012101134451 A CN2012101134451 A CN 2012101134451A CN 201210113445 A CN201210113445 A CN 201210113445A CN 102761203 A CN102761203 A CN 102761203A
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- Prior art keywords
- connector
- circuit board
- pedestal portion
- mounting panel
- lower face
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- Brushless Motors (AREA)
- Windings For Motors And Generators (AREA)
- Rotational Drive Of Disk (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides a motor and a disk drive apparatus. The motor comprises an installing plate and over 3 pedestal parts arranged upon the installing plate, wherein the pedestal parts protrude upward from the upper surface of the installing plate and contact with the lower surface of the circuit board. With this technical scheme, the gap between the installing plate and the circuit board can be ensured. Therefore, the side wires at the lower surface of the installing plate and the circuit board are made to be insulating. In addition, the upper portions of more than two pedestal parts are provided with a turnup portion, with the turnup portion protruding upward from the pedestal part, inserting into the first through hole arranged in the circuit board, and contacting with the upper surface of the circuit board or the edge of the first through hole. The installing plate and the circuit board are thus fixed.
Description
Technical field
The present invention relates to motor and disk drive device.
Background technology
In disk drive devices such as CD drive,, carried brushless motor in order to let disc spins.For example in japanese kokai publication hei 7-75315 communique, put down in writing about before brushless motor.Put down in writing terminal block that will be used for winding wiring and the circuit board group that is used for real dress components of drive circuit in this communique and be contained in carriage.
Patent documentation 1: japanese kokai publication hei 7-75315 communique
And in the past, the circuit board of brushless motor used double-sided substrate.Double-sided substrate is equipped with electrical harnesses at the upper surface and the lower surface of substrate.When therefore using double-sided substrate, for example circuit board is configured in the upper surface of metallic mounting panel across resinous insulating trip.Make the electrical harnesses and the mounting panel insulation of circuit board lower face side thus.
But the operation of configuration insulating trip is difficult to automation between mounting panel and circuit board.And resin system insulating trip is big to the load of environment.Therefore seek both can cut down the use of insulating trip, can make the technology of mounting panel and circuit board insulation again.
About this point, the brushless motor in japanese kokai publication hei 7-75315 communique does not use insulating trip.But in the figure of this communique, the part of lead and components of drive circuit contacts with carriage, how to realize that the insulation between carriage and circuit board is not quite clear.
Summary of the invention
The purpose of this invention is to provide a kind of use that in the motor that uses double-sided substrate, both can reduce insulating trip, can make the technology of mounting panel and circuit board insulation again.
The 1st invention of the application's example have the edge with on the metal mounting panel that extends of the direction of the central axis approximate vertical that extends below, the stationary part that is fixed on said mounting panel, with said central axis be the center rotation rotating part, be configured in the circuit board of said mounting panel upper surface side.Said circuit board is the double-sided substrate with the upper surface side distribution that is located at upper surface and the lower surface distribution that is located at lower surface.Said mounting panel has pedestal portion and the turn-up portion more than 2 more than 3.Wherein, said pedestal portion is outstanding to the top from the upper surface of said mounting panel, contacts with the lower surface of said circuit board.Said turn-up portion is more outstanding to the top from said pedestal portion, and is inserted in the 1st through hole that is located at said circuit board, with the EDGE CONTACT of the upper surface or said the 1st through hole of said circuit board.
According to the application's the 1st invention, can guarantee the gap between mounting panel and circuit board.Thus, can make the lower face side distribution insulation of mounting panel and circuit board.If particularly according to the layout of lower face side distribution, the pedestal portion of configuration more than 3 then in hope scope, can keep the gap between mounting panel and circuit board really.And, utilize the flange can easy fixation mounting panel and circuit board.
Description of drawings
Fig. 1 is the side view of motor.
Fig. 2 is the sectional arrangement drawing of disk drive device.
Fig. 3 is the sectional arrangement drawing of brushless motor.
Fig. 4 is the vertical view of brushless motor.
Fig. 5 is the upward view of brushless motor.
Fig. 6 is near the partial longitudinal section of the 1st pedestal portion of mounting panel and circuit board.
Fig. 7 is near the partial longitudinal section of the 2nd pedestal portion of mounting panel and circuit board.
Fig. 8 is the vertical view of brushless motor.
Fig. 9 is near the partial longitudinal section of pedestal portion of mounting panel and circuit board.
Symbol description
1 disk drive device
2,2A stationary part
3,3A, 3B rotating part
4,4A, 4B, 4C mounting panel
5,5A, 5B, 5C circuit board
9,9A central axis
11 casings
12 pan arrests
13,13B brushless motor
The 13A motor
14 access portions
21 Bearning mechanisms
22 stator mechanisms
31
32 rotating platforms
33 rotor magnets
34 clamping sections
41～43,41A～43A, 41B～43B the 1st pedestal portion
42C pedestal portion
44～47,44B～49B the 2nd pedestal portion
51,51B the 1st connector
52,52B the 2nd connector
53,53B the 3rd connector
54,55, distribution between 54B, 55B connector
56 through holes
57,57A, 57C the 1st through hole
58,58C grounding pattern
59 upper surface side distributions
60,60A gap
61 the 2nd through holes
62～64 installing holes
90 CDs
411,421,431,411A, 421A, 411B, 421B, 431B, 421C turn-up portion
541,551,541B, 551B upper surface side distribution
542,552,542B, 552B lower face side distribution
Embodiment
Below, the execution mode about example of the present invention describes with reference to drawing.In addition, below will be along the direction of the central axis of motor as above-below direction, with respect to mounting panel with board side as the top, come shape to each one to concern and describe with the position.But this just explains for ease and the above-below direction that defines, is not to limit motor and the disk drive device direction in use that the present invention relates to.
< 1. an execution mode relate to motor >
Fig. 1 is the side view of the related motor 13A of an execution mode of the present invention.As shown in Figure 1, motor 13A has stationary part 2A, rotating part 3A, mounting panel 4A, circuit board 5A.
Mounting panel 4A has the 41A～43A of pedestal portion more than 3.41A～the 43A of pedestal portion is outstanding to the top from the upper surface of mounting panel 4A.The upper surface of the 41A～43A of pedestal portion contacts with the lower surface of circuit board 5A.Guaranteed the gap 60A between mounting panel 4A and circuit board 5A thus.Therefore, the lower face side distribution of mounting panel 4A and circuit board 5A insulation.If dispose this pedestal portion more than 3 according to the layout of lower face side distribution, then in institute's desired area, can keep the gap between mounting panel 4A and circuit board 5A really.
And, be provided with turn-up portion 411A, 421A on the 41A of pedestal portion more than 2, the top of 42A.Turn-up portion 411A, 421A are more outstanding to the top from the 41A of pedestal portion, 42A, are inserted into the 1st through hole 57A that is located at circuit board 5A, and with the EDGE CONTACT of upper surface or the 1st through hole 57A of circuit board 5A.Thus mounting panel 4A and circuit board 5A are fixed.
< 2. more concrete execution mode >
< formation of 2-1. disk drive device >
Next, more concrete execution mode of the present invention is described.
Fig. 2 is the sectional arrangement drawing of disk drive device 1.Disk drive device 1 is when making CD 90 be the center rotation with central axis 9, CD 90 is carried out the device that reads and write of information.As shown in Figure 2, disk drive device 1 has casing 11, pan arrest 12, brushless motor 13 and access portion 14.
< all formations of 2-2. brushless motor >
Next, the formation to above-mentioned brushless motor 13 describes.
Fig. 3 is the sectional arrangement drawing of brushless motor 13.Fig. 4 is the vertical view of brushless motor 13.Fig. 5 is the upward view of brushless motor 13.Like Fig. 3～shown in Figure 5, the brushless motor 13 of this execution mode has stationary part 2, rotating part 3, mounting panel 4 and circuit board.
The rotating platform 32 of this execution mode has inside cylindrical portion 321, flat part 322 and outside cylindrical portion 323.Wherein, inside cylindrical portion 321 is fixed on the upper end of axle 31.Flat part 322 extends to radial outside from the bottom of inside cylindrical portion 321.And outside cylindrical portion 323 extends downwards from the radial outside end edge portion of flat part 322.Rotor magnet 33 is fixed on the inner peripheral surface of outside cylindrical portion 323.
The upper surface of the flat part 322 of rotating platform 32 fixedly carrying of rubber system put parts 35.CD 90 makes its lower surface carry on rotating platform 32 with carrying under the upper surface state of contact of putting parts 35.And the interior perimembranous of CD 90 remains in clamping part 34.That is, in this execution mode, the maintaining part that keeps CD 90 by rotating platform 32, carry and put parts 35 and clamping part 34 constitutes.
When the coil 24 of stationary part 2 is supplied with drive current, at a plurality of teeth 231 generation magnetic fluxs of stator core 23.Then, the effect of the magnetic flux through 33 of tooth 231 and rotor magnets produces circumferential torque.Therefore, rotating part 3 is the center rotation with respect to stationary part 2 with central axis 9.The CD 90 that remains in rotating part 3 is the center rotation with central axis 9 with rotating part 3 together.
Mounting panel 4 sheet material that to be edges extend with central axis 9 vertical directions.Mounting panel 4 is formed by metals such as the galvanized steel plain sheet higher than the rigidity of circuit board 5, SUS, aluminium alloys.In this execution mode, mounting panel 4 is fixed in the pan arrest 12 of disk drive device 1.Specifically fixtures such as screw are inserted into 3 installing holes 62～64 that are located at mounting panel 4, this fixture is fixed in pan arrest 12.3 installing holes 62～64 are configured to surround stationary part 2 and rotating part 3.Stationary part 2 is fixed in mounting panel 4 with circuit board 5.Wherein, mounting panel 4 has a plurality of pedestal portions 41～47 and the turn-up portion 411,421,431 that is used for holding circuit plate 5.About pedestal portion 41～47 and turn-up portion 411,421,431, after detailed description.
Like Fig. 4 and shown in Figure 5, be provided with the 1st connector 51 and 2nd connector 52 littler than the 1st connector 51 at the upper surface of circuit board 5.The 2nd connector 52 is configured in respect to central axis 9 and leaves roughly 90 ° position from the 1st connector 51.Circuit board 5 has the 501 and the 2nd zone 502, the 1st zone.Wherein, extend to the 1st connector 51 sides from the lower position of coil 24 in the 1st zone 501, and the 2nd zone 502 lower positions from coil 24 extend to the 2nd connector 52 sides.In this execution mode, 502 to the 1 zones 501, the 2nd zone are narrow.
And 501 the lower surface in the 1st zone of circuit board 5 is provided with 3rd connector 53 littler than the 1st connector 51.The 1st connector 51 and the 3rd connector 53 are disposed at the position that when overlooking, overlaps.In brushless motor 13, the 1st connector 51 mainly carry out and disk drive device 1 in electrical communication between other circuit.Therefore, each terminal pins of the 1st connector 51 is electrically connected with the 2nd connector the 52, the 3rd connector 53 and coil 24 respectively.
Like Fig. 4 and shown in Figure 5, distribution 54 parts between the connector of the 1st connector 51 and 52 electrical connections of the 2nd connector are passed through from the lower face side of circuit board 5.In other words, distribution 54 comprises upper surface side distribution 541 and lower face side distribution 542 between connector.And, distribution 55 between the connector of the 1st connector 51 and 53 electrical connections of the 3rd connector is comprised that also upper surface side distribution 551 and lower face side distribution 552, two distributions 551,552 connect through through hole 56.
In addition, if whole electrical harnesses of 51,52,53 of connectors are showed in Fig. 4 and Fig. 5, then drawing can become complicated, therefore only representes distribution 54,55 between representative connector in the drawings.
< 2-3. is about pedestal portion and turn-up portion >
Like Fig. 3～shown in Figure 5, mounting panel 4 has 3 the 1st pedestal portions 41～43 and 4 the 2nd pedestal portions 44～47.The upper surface of these pedestal portions 41～47 projects upwards than other regional upper surfaces of mounting panel 4.The upper surface of each pedestal portion 41～47 contacts with the lower surface of circuit board 5.Thus, guarantee the upper surface of mounting panel 4 and the gap 60 between circuit board 5 lower surfaces.Its result does not use insulating trip, can make the lower face side distribution insulation of mounting panel 4 and circuit board 5 yet.
Fig. 6 is near the partial longitudinal section the 1st pedestal portion 42 of mounting panel 4 and circuit board 5.Be provided with turn-up portion 421 on the top of the 1st pedestal portion 42.Turn-up portion 421 is more outstanding to the top from the upper surface of the 1st pedestal portion 42.And turn-up portion 421 is inserted into the 1st through hole 57 that is located at circuit board 5, and with the EDGE CONTACT of the upper surface of circuit board 5 or the 1st through hole 57.
When forming the 1st pedestal portion 42, at first form the 1st pedestal portion 42 at mounting panel 4 through half Punching Technology with turn-up portion 421.Then, the central authorities' formation prebored hole in the 1st pedestal portion 42 makes the edge of prebored hole outstanding to the top through flange processing, forms turn-up portion 421 roughly cylindraceous.Afterwards, turn-up portion 421 is inserted the 1st through hole 57 of circuit boards 5, then chimeric, overwhelm the upper end of turn-up portion 421 laterally, make it EDGE CONTACT with the upper surface or the 1st through hole 57 of circuit board 5.Thus, circuit board 5 is fixed between the upper surface of upper end and the 1st pedestal portion 42 of turn-up portion 421.
Like Fig. 4 and shown in Figure 6, at the local grounding pattern (ground pattern) 58 that forms of the upper surface of circuit board 5.Grounding pattern 58 is the patterns that are used to obtain the reference potential of the electronic loop on the circuit board 5.In this execution mode, turn-up portion 421 contacts with grounding pattern 58.Therefore, conduct grounding pattern 58 and mounting panel 4 through turn-up portion 421.Thus, the current potential of grounding pattern 58 maintains reference potential.That is, the turn-up portion in this execution mode 421 has mounting panel 4 is fixed on circuit board 5 and conducts grounding pattern 58 and two kinds of effects of mounting panel 4.
In addition, other two the 1st pedestal portions 41,43 and turn-up portion 411,431 do not have equivalent constructions with the 1st pedestal portion 42 shown in Figure 6 with turn-up portion 421 with grounding pattern 58 contacts except that having.
Fig. 7 is near the partial longitudinal section the 2nd pedestal portion 44 of mounting panel 4 and circuit board 5.Turn-up portion is not formed at the top in the 2nd pedestal portion 44.Therefore, the outside diameter d 2 of setting the 2nd pedestal portion 44 when overlooking outside diameter d 1 (with reference to Fig. 6) of the 1st pedestal portion 42 when overlooking is little.The 2nd pedestal portion 44 area occupied are more little, can guarantee the distribution zone of the lower face side of bigger circuit board 5 more.In addition, other 4 the 2nd pedestal portions 45～47 also have the equal structure with the 2nd pedestal portion 44 shown in Figure 7.
If the height d3 of each pedestal portion 41～47 is low excessively, then mounting panel 4 comes in contact with the lower face side distribution easily.Specifically, might be because the bending of circuit board 5 etc., in the position of departing from pedestal portion 41～47, the lower surface distribution contacts with mounting panel 4.But if the height d3 of pedestal portion 41～47 is too high, then the axial dimension of brushless motor 13 becomes big.Therefore, preferably consider that mounting panel 4 and lower face side distribution must insulate and this basis of 2 of thin type requirement of brushless motor 13 on, appropriately set the height d3 of each pedestal portion 41～47.
Specifically, the height d3 of pedestal portion 41～47 for example can be set in 50 μ m between 250 μ m.And more preferably the height d3 with pedestal portion 41～47 is set in 70 μ m between 200 μ m.If pay attention to insulation, the height of pedestal portion 41～47 for example can be set at roughly 200 μ m.If pay attention to the requirement of thin typeization, the height of pedestal portion 41～47 for example can be set at roughly 70 μ m.
For the lower face side distribution that prevents mounting panel 4 and circuit board 5 contacts, preferred a plurality of pedestal portion 41～47 does not depart from configuration with respect to circuit board 5.For example preferred center of gravity with circuit board 5 is configured in the polygonal inboard that a plurality of pedestal of connection portion 41～47 forms.And, might take place to cause that because of the chimeric of turn-up portion the situation of warpages takes place circuit board 5.In order to suppress this warpage, preferred 3 turn-up portion 411,421,431 do not depart from configuration.For example, preferably the center of gravity of circuit board 5 is configured in and connects 3 polygonal inboards that turn-up portion 411,421,431 forms.
Like Fig. 4 and shown in Figure 5, in this execution mode, near the lower face side distribution 542 that connects the 1st connector 51 and the 2nd connector 52, dispose two pedestal portions 41,42.And, near the lower face side distribution 552 and through hole 56 that connect the 1st connector 51 and the 3rd connector 53, dispose 1 pedestal portion 43.Like this, if near the lower face side distribution configuration pedestal portion, then suppressed contacting of mounting panel 4 and lower face side distribution more.
And, in this execution mode, lower face side distribution 542 pedestal portion 41,42 and pedestal portion 46, between 47 through and extend.Like this, if between a pair of pedestal portion configuration lower face side distribution, more can suppress contacting of mounting panel 4 and lower face side distribution.
And, in this execution mode, below the 2nd connector 52, dispose 2 pedestal portions 44,45.Therefore when electric wire being connected with the 2nd connector, though the external force of receiving, the distortion of the circuit board 5 that also can suppress to cause because of this external force.Therefore suppressed contacting of mounting panel 4 and lower face side distribution more.
At the upper surface of circuit board 5, upper surface side distribution 59 extends to the below of rotating part 3 from the 1st connector 51.At the terminal part of upper surface side distribution 59, be provided with the pad that is used to weld the lead of drawing from coil 24.And in this execution mode, 2 pedestal portions 46,47 are configured in the below of rotating part 3.That is near 2 pedestal portions 46,47 of configuration welding disk.Therefore, when welding disk welds, even the external force of receiving, the distortion of the circuit board 5 that also can suppress to cause because of this external force.Its result has suppressed contacting of mounting panel 4 and lower face side distribution more.
And as shown in Figure 5, the mounting panel 4 of this execution mode has 2 the 2nd through holes 61.2 the 2nd through holes 61, be configured in the position that overlaps with the part of the lower face side distribution 542 that is connected the 1st connector 51 and the 2nd connector 52 when overlooking.And a part that connects the lower face side distribution 552 of the 1st connector 51 and the 3rd connector 53 is configured in the outside of mounting panel 4.In the outside of the 2nd through hole 61 and mounting panel 4, lower face side distribution 542,552 and mounting panel 4 do not come in contact.Thus, suppressed contacting of mounting panel 4 and lower face side distribution 542,552 more.
In addition, be provided with under the situation of electronic components such as resistance, electric capacity, connector, preferably with the outside of these electronic component arrangements at the 2nd through hole 61 and mounting panel 4 in the lower face side of circuit board 5.That is, preferably with mounting panel 4 and the position of these electronic component arrangements for when overlooking, not overlapping.In this execution mode, the 2nd connector 52 is configured in the outside of mounting panel 4.The height with respect to mounting panel 4 that like this, can suppress circuit board 5.The axial dimension that therefore, can suppress brushless motor 13.
And in this execution mode, 3 turn-up portion 411,421,431 dispose near the outer peripheral face of rotating platform 32.Thus, suppressed near the perk of the circuit board 5 stationary part 2 and the rotating part 3.Therefore, suppressed contacting of coil 24 and rotating platform 32 and circuit board 5.
< 3. other execution mode >
Fig. 8 is the vertical view of the brushless motor 13B that relates to of other execution modes.Its mounting panel of the brushless motor 13B 4B of Fig. 8 and the shape of circuit board 5B are different with above-mentioned brushless motor 13.Below, be to be that the center describes with the brushless motor 13B of Fig. 8 and the difference of above-mentioned execution mode.
As shown in Figure 8, at the upper surface of the circuit board 5B of brushless motor 13B, be provided with the 1st connector 51B and little the 2nd connector 52B than the 1st connector 51B.And, be provided with the 3rd connector 53B at the lower surface of circuit board 5B.Near the shape that attenuates in the middle of circuit board 5B has the 1st connector 51B.And circuit board 5B has the 1st regional 501B of general triangular shape and the 2nd regional 502B of general triangular shape.Wherein, the 1st regional 501B is from extending to the 3rd connector 53B side near the 1st connector 51B, and the 2nd regional 502B is from extending to the 2nd connector 52B side near the 1st connector 51B.In this execution mode, the 2nd regional 502B is bigger than the 1st regional 501B.Stationary part and rotating part 3B are configured in the 2nd regional 502B.The 1st connector 51B than the 2nd connector 52B near the 3rd connector 53B.
The mounting panel 4 of this execution mode has 3 the 1st 41B～43B of pedestal portion, 6 the 2nd 44B～49B of pedestal portion.Wherein, be respectively equipped with turn-up portion 411B, 421B, 431B on the top of 3 the 1st 41B～43B of pedestal portion.
In this execution mode, near the lower face side distribution 542B that the 1st connector 51B is connected with the 2nd connector 52B, dispose 3 41B of pedestal portion, 42B, 46B.And, near the lower face side distribution 552B that the 1st connector 51B is connected with the 3rd connector 53B, dispose 1 43B of pedestal portion.Thus, prevent contacting of mounting panel 4B and lower face side distribution 542B, 552B.
And in this execution mode, lower face side distribution 542B is from passing through between the 41B of pedestal portion, 47B and the 42B of pedestal portion, the 46B and extending.Thus, suppress contacting of mounting panel 4B and lower face side distribution 542B more.
4. variation
More than, the illustrative execution mode of the present invention is illustrated, but the present invention is not limited to above-mentioned execution mode.
The shape of mounting panel and circuit board also can be the shape different with Fig. 4, Fig. 5 and Fig. 8.And pedestal portion also can be configured in the position different with Fig. 4, Fig. 5 and Fig. 8 with turn-up portion.Pedestal portion can have 3 at least, also can be therein at least 2 be provided with turn-up portion.If the pedestal portion more than 3 is configured according to the layout of lower face side distribution,, can keep the gap between mounting panel and circuit board really then at institute's desired area.
All pedestal portions that are located at mounting panel are contacted with circuit board.For example, in the example of said Fig. 4 and Fig. 5, in a plurality of the 2nd pedestal portions 44～47, can have and the discontiguous pedestal of circuit board 5 portion.
The height of the upper surface of a plurality of pedestal portion both can be set at equal height, also can be set at differing heights.For example, the ifs circuit plate has easy of the crooked character of specific direction, then also can be directed against this character, the height of each pedestal portion of individual settings.
Can also can fix only through turn-up portion with screw, fixing means such as buttonhole, rivet use together, and circuit board is fixed in mounting panel.
And circuit board also can have the local insulating properties diaphragm that covers its upper surface and lower surface.Have under part that is coated with diaphragm and the situation of the part of from diaphragm, exposing at the lower face side distribution, preferably with pedestal portion be configured in the part exposed from diaphragm near.
Fig. 9 is the mounting panel 4C that relates to of a variation and the partial longitudinal section of circuit board 5C.In the example of Fig. 9, be provided with grounding pattern 58C in the lower face side of circuit board 5C.In addition, be disposed at the 42C of pedestal portion when overlooking and position that grounding pattern 58C overlaps.Can utilize the 42C of pedestal portion that grounding pattern 58C and mounting panel 4C are electrically connected like this.
Though also can be coated with the diaphragm of insulating properties at the lower surface of circuit board 5C, preferred grounding pattern 58C exposes from diaphragm at least a portion that overlaps with the 42C of pedestal portion.Particularly the boundary portion owing to 42C of pedestal portion and turn-up portion 421C contacts with the periphery of the 1st through hole 57C easily.So,, then easily grounding pattern 58C and mounting panel 4C are electrically connected if grounding pattern 58C is exposed from diaphragm at the periphery of the 1st through hole 57C.
Circuit board of the present invention can only form circuit for 2 layers at upper surface and lower surface, also can form circuit more than 3 layers.
And motor of the present invention both can be fixed on pan arrest shown in said execution mode, also can be fixed in the casing of disk drive device through the chassis.
And motor of the present invention both can be the motor that makes CD rotation like said execution mode, also can be the motor that makes other indicators rotations such as disk.
And each key element that in said execution mode and variation, occurs only otherwise conflicting just can be carried out appropriate combination.
The possibility of utilizing on the industry
The present invention is applicable to motor and disk drive device.
Claims (20)
1. motor has:
Metal mounting panel, its edge with on the vertical direction of the central axis that extends below extend;
Stationary part, it is fixed in said mounting panel;
Rotating part, it is the center rotation with said central axis;
Circuit board, it is disposed at the upper surface side of said mounting panel,
It is characterized in that,
Said circuit board is a double-sided substrate, and this double-sided substrate has the upper surface side distribution of being located at upper surface and the lower face side distribution of being located at lower surface,
Said mounting panel has:
Pedestal portion more than 3, these pedestal portions are outstanding to the top from the upper surface of said mounting panel, and contact with the lower surface of said circuit board;
Turn-up portion more than 2, these turn-up portion are more outstanding to the top from said pedestal portion, and are inserted into the 1st through hole that is located at said circuit board, with the EDGE CONTACT of the upper surface or said the 1st through hole of said circuit board.
2. motor according to claim 1, wherein,
At least 1 said pedestal portion be configured in said lower face side distribution near.
3. motor according to claim 1, wherein,
Said lower face side distribution between 2 said pedestal portions through and extend.
4. motor according to claim 1, wherein,
The center of gravity of said circuit board is disposed at and connects the polygonal inboard that said pedestal portion more than 3 forms.
5. motor according to claim 1, wherein,
Said turn-up portion contacts with grounding pattern on the said circuit board.
6. motor according to claim 1, wherein,
The lower surface of said circuit board is provided with grounding pattern,
At least one said pedestal portion is disposed at the position that when overlooking, overlaps with said grounding pattern.
7. motor according to claim 6, wherein,
Part the being insulated property diaphragm of the lower surface of said circuit board covers,
At least a portion in the zone that overlaps with said pedestal portion of said grounding pattern is exposed from said diaphragm.
8. motor according to claim 7, wherein,
The periphery of said the 1st through hole exposes from said diaphragm.
9. according to each described motor of claim 1 to claim 8, wherein,
At least 1 said turn-up portion be configured in said rotating part near.
10. according to each described motor of claim 1 to claim 8, wherein,
Said pedestal portion more than 3 has the 1st pedestal portion that is formed with said turn-up portion and the 2nd pedestal portion that does not form said turn-up portion,
Said the 2nd pedestal portion is littler than said the 1st pedestal portion when overlooking.
11. according to each described motor of claim 1 to claim 8, wherein,
Said mounting panel has the 2nd through hole,
Said the 2nd through hole is disposed at the position that when overlooking, overlaps with at least a portion of said lower face side distribution.
12. according to each described motor of claim 1 to claim 8, wherein,
Said pedestal portion forms through half Punching Technology.
13. according to each described motor of claim 1 to claim 8, wherein,
Said circuit board has the 1st connector and the 2nd connector of the upper surface side of being located at and is located at the 3rd connector of lower face side,
When overlooking, said the 1st connector and said the 3rd connector are configured in the position that overlaps, and said the 2nd connector is configured in the position different with them,
The part of distribution is through the lower face side of said circuit board between the connector that said the 1st connector and said the 2nd connector are electrically connected,
Said the 1st connector is electrically connected through the through hole that is located at said circuit board with said the 3rd connector,
Said pedestal portion more than 3 has along the pedestal portion of distribution configuration between said connector and is configured near the pedestal portion of said through hole.
14. according to each described motor of claim 1 to claim 8, wherein,
Said circuit board has the 1st connector and the 2nd connector of the upper surface side of being located at and is located at the 3rd connector of lower face side,
When overlooking, said the 1st connector than said the 2nd connector near said the 3rd connector,
Between the connector that said the 1st connector and said the 2nd connector are electrically connected the part of distribution and will said the 1st connector and the connector of said the 3rd connector electrical connection between the part of distribution, through the lower face side of circuit board,
Said pedestal portion be disposed at distribution between said connector near.
15. according to each described motor of claim 1 to claim 8, wherein,
The height setting of said pedestal portion is between 50 μ m to 250 μ m.
16. according to each described motor of claim 1 to claim 8, wherein,
The height setting of said pedestal portion is between 70 μ m to 200 μ m.
17. according to each described motor of claim 1 to claim 8, wherein,
Below said the 2nd connector, dispose 2 said pedestal portions at least.
18. according to each described motor of claim 1 to claim 8, wherein,
The electronic component arrangements of lower face side that is located at said circuit board is in the outside of said the 2nd through hole.
19. according to each described motor of claim 1 to claim 8, wherein,
Said lower face side distribution has part that is covered by said diaphragm and the part of exposing from said diaphragm,
Said pedestal portion be configured in the part exposed from said diaphragm near.
20. a disk drive device is characterized in that having:
Each described motor according to claim 1 to claim 19;
Access portion, it carries out at least one side who reads and write of information to the dish of the said rotating part that remains on said motor;
Casing, it holds said motor and said access portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-097691 | 2011-04-25 | ||
| JP2011097691A JP5899649B2 (en) | 2011-04-25 | 2011-04-25 | Motor and disk drive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102761203A true CN102761203A (en) | 2012-10-31 |
| CN102761203B CN102761203B (en) | 2014-11-05 |
Family
ID=47055550
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220163900 Expired - Lifetime CN202840833U (en) | 2011-04-25 | 2012-04-17 | Motor and disk drive apparatus |
| CN201210113445.1A Active CN102761203B (en) | 2011-04-25 | 2012-04-17 | Motor and disk drive apparatus |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220163900 Expired - Lifetime CN202840833U (en) | 2011-04-25 | 2012-04-17 | Motor and disk drive apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5899649B2 (en) |
| CN (2) | CN202840833U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5899649B2 (en) * | 2011-04-25 | 2016-04-06 | 日本電産株式会社 | Motor and disk drive device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050018352A1 (en) * | 2003-07-24 | 2005-01-27 | Samsung Electronics Co., Ltd. | Flexible printed circuit for spindle motor and disk drive having the same |
| US20080309204A1 (en) * | 2007-06-14 | 2008-12-18 | Nidec Corporation | Circuit board and brushless motor using the same |
| JP2009050090A (en) * | 2007-08-20 | 2009-03-05 | Nippon Densan Corp | Brushless motor equipped with chucking device, and the brushless motor |
| US20090072638A1 (en) * | 2007-09-19 | 2009-03-19 | Nidec Corporation | Brushless motor |
| CN102044936A (en) * | 2009-10-21 | 2011-05-04 | 日本电产株式会社 | Motor and disk driving device |
| CN202840833U (en) * | 2011-04-25 | 2013-03-27 | 日本电产株式会社 | Motor and disk drive apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0715336Y2 (en) * | 1984-04-18 | 1995-04-10 | 株式会社東芝 | Brushless motor |
| JPH0742564U (en) * | 1993-12-28 | 1995-08-04 | 松下電器産業株式会社 | Brushless motor |
| JPH1198770A (en) * | 1997-09-19 | 1999-04-09 | Victor Co Of Japan Ltd | Stator structure of motor and stator assembling of motor |
| JP3759529B2 (en) * | 2003-02-10 | 2006-03-29 | ファナック株式会社 | Motor with encoder |
| JP2007195370A (en) * | 2006-01-20 | 2007-08-02 | Nidec Copal Corp | Brushless motor and brushless fan motor |
| JP4946625B2 (en) * | 2007-05-21 | 2012-06-06 | 日本電産株式会社 | motor |
| JP5154336B2 (en) * | 2008-08-19 | 2013-02-27 | ミネベアモータ株式会社 | Brushless motor |
| JP2011072143A (en) * | 2009-09-28 | 2011-04-07 | Nippon Densan Corp | Circuit board unit, motor, and disk drive |
-
2011
- 2011-04-25 JP JP2011097691A patent/JP5899649B2/en not_active Expired - Fee Related
-
2012
- 2012-04-17 CN CN 201220163900 patent/CN202840833U/en not_active Expired - Lifetime
- 2012-04-17 CN CN201210113445.1A patent/CN102761203B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050018352A1 (en) * | 2003-07-24 | 2005-01-27 | Samsung Electronics Co., Ltd. | Flexible printed circuit for spindle motor and disk drive having the same |
| US20080309204A1 (en) * | 2007-06-14 | 2008-12-18 | Nidec Corporation | Circuit board and brushless motor using the same |
| JP2009050090A (en) * | 2007-08-20 | 2009-03-05 | Nippon Densan Corp | Brushless motor equipped with chucking device, and the brushless motor |
| US20090072638A1 (en) * | 2007-09-19 | 2009-03-19 | Nidec Corporation | Brushless motor |
| CN102044936A (en) * | 2009-10-21 | 2011-05-04 | 日本电产株式会社 | Motor and disk driving device |
| CN202840833U (en) * | 2011-04-25 | 2013-03-27 | 日本电产株式会社 | Motor and disk drive apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012231582A (en) | 2012-11-22 |
| JP5899649B2 (en) | 2016-04-06 |
| CN102761203B (en) | 2014-11-05 |
| CN202840833U (en) | 2013-03-27 |
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