CN1574553A - Power supply device - Google Patents
Power supply device Download PDFInfo
- Publication number
- CN1574553A CN1574553A CN 200410047236 CN200410047236A CN1574553A CN 1574553 A CN1574553 A CN 1574553A CN 200410047236 CN200410047236 CN 200410047236 CN 200410047236 A CN200410047236 A CN 200410047236A CN 1574553 A CN1574553 A CN 1574553A
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- spring
- electric supply
- supply installation
- motor
- power supply
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Provided is a motor equipped with a feeding device that secures stable electrical contact and high reliability in its life by suppressing surges and harmonic oscillations, that is good in assembly workability, and that has versatility as a component, too. On a part of a position near one end of a motor (10), a pair of feeding terminals (11) are provided positioned at the other end of the motor (10). Furthermore, a pair of electrodes (41) positioned at the feeding terminals (11) and supplying electric power to the motor (10) are provided on a circuit board (40). The feeding device (50) whose side is partially fixed to the side of the motor (10) with an adhesive or a double-sided tape is gripped between the feeding terminals (11) and the electrodes (41) so formed, and the electrodes (41) of the circuit board (40) are each electrically connected to the feeding terminals (11) of the motor (10).
Description
Technical field
The present invention relates generally to the electric supply installation of the DC motor that the device of excitation on the portable sets such as being installed in beep-pager uses.
Background technology
Be installed in each electronic unit on the portable set in recent years, surface installing type increases, and utilizes reflow soldering to carry out distribution on printed circuit board (PCB).
In addition, to parts that can not reflow soldering, in the past, be that the non-welding manner of the mode of welding by hand or connector formula carries out distribution.But, manual welding mode in fact, the problem that it has the operating efficiency extreme difference and is difficult to maintain.
In addition, the connector formula, it has the receptacle portion costliness, comprises miscellaneous property of installation exercise of the welding operation of receptacle portion, and, owing to the problem that receptacle portion is difficult to slim or miniaturization is installed.Therefore, adopted the nothing welding way of contact that addresses these problems recently mostly.
Do not have the welding way of contact as this, it is well-known utilizing helical spring constrictive mode, has also adopted this mode the installing of flat vibration motor of the device of excitation of portable telephone apparatus recently.
It is to be located at the coil power supply portion of terminal of motor and to be located between the electrode on the circuit board and the mode that is electrically connected being inserted in conductivity compression helical spring on the cylindrical bump of casing.(for example, with reference to citing document 1)
In addition,, pass a pair of helical spring of the rubber baffle of fixed motor body, between the feeder terminal portion that its Jie is motor and the circuit board electrode and be electrically connected in order to realize slimming.(for example, with reference to citing document 2)
In addition, for the stability that realizes electrically contacting, have and be incorporated in the resinous cylindric spring guide piece that is located on the motor bracket and the one end is welded on the mode that helical spring and the electrode of circuit board on this motor outside terminal contact and be electrically connected, (for example, with reference to citing document 3), perhaps, have the elastomeric part of the insulating properties that is held motor body to surround and be fixed in helical spring on the outside terminal of this motor, it is between the electrode of the feeder terminal portion of this motor and circuit board and the mode that is electrically connected.(for example, with reference to citing document 4)
[patent documentation 1] Japan Patent is opened flat 2-141883 communique in fact
[patent documentation 2] Japanese patent laid-open 8-140301 communique
[patent documentation 3] Japanese patent laid-open 10-117460 communique
[patent documentation 4] Japan Patent spy opens the 2002-44907 communique
Summary of the invention
But helical spring is easy to generate the covibration that is called as surge (surging).
In addition, since this surge might cause helical spring contact site or be applied in the plating exfoliation of the noble metal on the electrode surface or the problem of poor electric contact that contact point moves etc. etc.And, because this surge, also can produce the problem that life-span of helical spring damage etc. reduces.In addition, also there is helical spring can not suppress to hinder the problem of the dither of normal electrical contact.
In addition, from the viewpoint of the small-sized slimming of resources effective flexible utilization and equipment, the size Control that must stop the loosening insulating elastomer (mat) of motor is in Min..In addition, also have simplification assembling operations such as to end weld job, and enlarge the versatility of institute's installing component and the problem of enhancing productivity.
The objective of the invention is to: providing a kind of can address the above problem, and particularly can guarantee stable to electrically contact and the reliability of the vibration that ability is undue, and the good and parts of operation also has the electric supply installation of the pancake shaped motor of high universalizable.
In order to address the above problem, technical scheme 1 is described to be a kind of by the tabular power supply terminal of deriving from the motor side, with the electrode clamping of the extremely opposed circuit board of this power supply terminal they are electrically connected, the rubber-like electric supply installation, it is characterized in that: this electric supply installation is by the metallic spring of correspondence with the quantity of the described power supply terminal utmost point and described circuit board electrode short circuit, and the elastomeric element of taking in the insulating properties of this spring constitutes, on this elastomeric element, form the hole of counting equal number with the spring of the described spring that is contained, and its gauge is shorter than the drift of described spring, and the interval than described power supply terminal and described circuit board is wide, push the utmost point of described power supply terminal and the electrode of described circuit board simultaneously at spring described in the described clamping and described elastomeric element, can reach the stable high reliability that electrically contacts and guarantee anti-undue vibration thus.
In addition, as described in technical scheme 2,, then can easily be installed in the hole of being located on the technical scheme 3 described elastomeric elements if this spring is made compression helical spring, and can be one-body molded with the elastomeric element of good forming abilities such as elastomer easily.
In addition, if above-mentioned spring is made leaf spring, then can also can easily form a plurality of electric supply installations by continuously shaped spring.
In addition as described in the technical scheme 5, at least one side of this electric supply installation is installed at least a portion of described motor, can realize the improvement of operation or the improvement of parts allotment efficient with this.
When making this electric supply installation, as described in technical scheme 6, also can be one-body molded, can form a plurality of electric supply installations simultaneously thus.
Description of drawings
Fig. 1 is the major part profile of the embodiment of the invention.
Fig. 2 is the exploded perspective view of electric supply installation structure shown in Figure 1.
Fig. 3 is the profile of electric supply installation shown in Figure 1.
Fig. 4 is the stereogram that the motor of electric supply installation of the present invention has been installed.
Fig. 5 is the major part profile that amplifies around the electric supply installation shown in Figure 1.
Fig. 6 is the spring performance figure of helical spring of the present invention and baffle plate.
Fig. 7 is the manufacture method figure of electric supply installation shown in Figure 1.
Fig. 8 is the major part profile of other embodiments of the invention.
Fig. 9 is the manufacture method figure of electric supply installation shown in Figure 8.
Figure 10 is the stereogram that is used for parts of electric supply installation shown in Figure 8.
Symbol description
The 10-motor, the 11-power supply terminal, the 20-upper casing, the 21-guide,
The 30-lower casing, the 40-circuit board, the 41-electrode, the 50-electric supply installation,
5 1-helical springs, 52-baffle plate, 61, the 62-mat, 70-adhering part
Embodiment
The 1st embodiment
Fig. 1 is the major part profile of the embodiment of the invention.Pancake and vibrative motor 10, it is situated between and is carried on the upper casing 20 of portable telephone apparatus and is installed between the circuit board 40 on the lower casing 30 by mat 61,62.In addition, be provided with another distolateral tabular power supply terminal 11 of deriving and face this motor 10 near the side the end of this motor 10, and, with the extremely relative of this power supply terminal 11 and on circuit board 40, utilize printed pattern (パ one Application) face to be provided with pair of electrodes 41 to this motor 10 supply powers.Between the power supply terminal 11 and electrode 41 that so form, clamping the side by the electric supply installation 50 of adhering part 70 localized immobilization on the side of motor 10 with bonding agent or two-sided tape, and it is electrically connected the electrode 41 of circuit board 40 and the power supply terminal 11 of motor 10 respectively.In addition, on upper casing, be provided with circular or prevent the guide 21 that motor 10 moves radially with the external diameter of motor is set up approx.
Fig. 2 is the STRUCTURE DECOMPOSITION stereogram of this electric supply installation 50.On Fig. 2, electric supply installation 50 is made of helical spring 51 and the baffle plate (ダ Application パ one) 52 that a pair of compression is used.Helical spring 51, it is circular by the cross section or square metal wire rod forms.On the other hand, baffle plate 52, it is made of synthetic rubber such as natural rubber or polyurethane rubber or material, mouldability excellent elasticity body of making these rubber panges etc. as elastomeric element.And, on baffle plate 52, be provided with a pair of vertical hole 52a, 52b.The internal diameter of this hole 52a, 52b is set to the size identical with the external diameter of helical spring 51 or littler but can insert the size of helical spring 51 than it.
In addition, baffle plate 52 is powered the gauge b of terminal 11 and the direction of electrode 41 clampings, than between power supply terminal 11 and the electrode 41 apart from a (shown in Figure 1) greatly, and the drift c of helical spring 51 is bigger than the gauge b of baffle plate 52.
In addition, the profile of electric supply installation of the present invention 50 as shown in Figures 1 and 2, because it slightly is cube, so on the side 52c parallel, can paste the adhering part 70 of two-sided tape etc. with the perforation direction of hole 52a, the 52b of baffle plate 52, be installed in the side of motor 10 of the power supply terminal 11 of motor 10, but this is an example, and the most basic is that at least a portion that needs only electric supply installation is installed at least a portion of motor body and the power supply terminal that is switched on.
In addition, when carrying out this installation, also can use the rubber-like bonding agent with bonding way.And, also can be to helical spring 51 whole implementation precious metal electroplatings.In addition, baffle plate 52 also can form and makes it have elasticity and flexibility with the foaming structure of synthetic resin, perhaps, and also can be with helical spring 51 and baffle plate 52 global formations.
Fig. 3 (a) inserts the hole 52a of baffle plate 52, the profile of 52b state with helical spring 51.The outside dimension of helical spring 51 be set identical or little some with the internal diameter of hole 52a, 52b.So, because baffle plate 52 itself has elasticity, so can easily helical spring 51 be inserted in hole 52a, the 52b of baffle plate 52.
In addition, after the insertion, so because the inner face of hole 52a, 52b is pushing the outside of helical spring 51 is not easy to come off.And, because the thickness of the ratio baffle plate 52 that the drift of helical spring 51 is set is long, so helical spring 51 its ends that are inserted into can be from the two ends or one-sided the exposing of baffle plate 52.
Fig. 3 (b) is other examples of the end shape of helical spring 51.Thereby this helical spring 51b is its end 51c will be cut off the spring of end face towards power supply terminal to screw winding direction of principal axis warpage.
So will cut off end face and contact, obtain more reliable conducting thereby then can utilize the cut-out end face to withstand picture surface with the picture surface of power supply terminal.
In addition, can end 51c is closer to each other and be positioned at position adjacent.The power supply of general motor 10 is very little, and the pole spacing of power supply terminal 11 is also very little.Even the end is contacted reliably with picture surface.If make end 51c adjacent, even then on the picture surface of the little at interval utmost point, also can helical spring be contacted reliably.
End 51c just can easily set it at interval owing to rotate helical spring 51, so it can be fit to the power supply terminal picture surface at various intervals.
So, also can be used for electrode 41 1 sides with the structure of end warpage, so as long as the set positions that changes spring end then can corresponding various power supply terminals, electrode.
Fig. 4 is the stereogram that the electric supply installation 50 of said structure is installed in motor 10 side status.Baffle plate 52 is fixed on the side of motor 10 by adhering part 70, so that an end of helical spring 51 is ridden on each utmost point 11a, 11b of power supply terminal 11.And the motor 10 that electric supply installation 50 so has been installed is embedded in the guide 21 of upper casing 20.In addition, on guide 21, be provided with the electrode 41 opposed notch part 21a with circuit board shown in Figure 1 40, and non-loosening ground embeds the power supply terminal 11 of motor 10 in this notch part 21a.
In addition, what guide 21 was represented on Fig. 4 is cylindric, but also can dispose the guide with the adaptive pillar-shaped of motor external diameter circularly.
Fig. 5 is the major part profile that amplifies around the power supply of motor shown in Figure 1 10.On Fig. 5, helical spring 51 is powered the utmost point of terminal 11 and electrode 41 clampings of circuit board 40.In other words, helical spring 51 is being pressed the utmost point of power supply terminal 11 and the electrode 41 of circuit board 40, and short circuit between each utmost point formed conducts.In addition, similarly baffle plate 52 is powered electrode 41 clampings of terminal 11 and circuit board 40.In other words, baffle plate 52 is being pressed around the contact site of power supply terminal 11 and the helical spring 51 of the electrode 41 of circuit board 40.
By helical spring 51 and baffle plate 52 formed electric supply installations 50,, then can be installed on the motor where necessary immediately thereby the simplification installation exercise if make the state that helical spring 51 is passed the perforate of baffle plate 52 in advance.And, even its kind difference with motor also can be used the advantage of this electric supply installation 50 generally.In addition, supply with, then can be implemented in the simplification of assembling operation in the production process of portable telephone apparatus etc. because this electric supply installation 50 is installed on the motor 10.
In addition, because baffle plate 52 can be selected the antiknock quality different with the loosening up and down mat 61,62 that suppresses motor 10, so can have the characteristic that more remarkable inhibition is vibrated.
Fig. 6 is the spring performance figure of helical spring 51 and baffle plate 52.
And on Fig. 6, X-axis is represented amount of deflection or decrement, and Y-axis is represented load or pressing force.From this performance plot as can be seen, so helical spring 51 has the linearity characteristic because it is its that formed by wire, so and baffle plate 52 is spring performances that the rubber spring structure has the nonlinearity characteristic.Shown in this performance plot, the load-flexibility characteristics of spring can be replaced into the compression-pressing force characteristic of spring.
This moment is under the state of structure as mentioned above, the distance of power supply terminal 11 and electrode 41 is that the thickness of a, baffle plate 52 is that the drift of b, helical spring 51 is c, and the length that helical spring 51 exposes from baffle plate 52 is S1, in addition, decrement with helical spring 51 is S2, and then following relational expression is set up:
S1＝c-b
S2＝c-a＝S1+b-a
If it is illustrated with Fig. 6, then be that helical spring 51 at first has been compressed the amount of S1 when upper casing 20 and lower casing 30 are begun to make up, and also be compressed and finally be compressed the amount of S2 at the time point baffle plate 52 that surpasses this S1 simultaneously.Therefore, the pressing force of the baffle plate 52 in compression S2 is P1, and the intensity of pushing of helical spring 51 is P2.Can learn that according to Fig. 6 P2 is far longer than P1.This shows that baffle plate 52 is pushed power supply terminal and electrode, and helical spring 51 is to push its contact site than its stronger power.
So, because the pressing force of helical spring 51 is far longer than baffle plate 52, and plays independently spring function respectively, so can not cause poor electric contact.In addition, because baffle plate 52 it utilize the peculiar viscoplasticity of rubber spring to have the time delay of the distortion of following stress, so enlarged markedly insulation effect at high frequency, and can absorb little vibration of the contact site that is applied in helical spring 51 ends and the electrode 41 or power supply terminal 11 utmost points, and has the effect of keeping stable contact of peeling off that can prevent because of contact surface abrasion that vibration causes, plating.
In addition, because helical spring 51 is to make with metal, so cause surge because of covibration easily.But, hole 52a, the 52b of baffle plate 52 contact with the external diameter of helical spring 51 respectively from start to finish, and it is peculiar with respect to distortion and the incompressibility of constancy of volume that baffle plate 52 has rubber spring, utilize upper casing 20 and be installed in circuit board 40 clampings on the lower casing 30 and be pressed, the part of hole 52a, 52b internal diameter narrows down, and this face pushes the helical spring 51 that passes.Therefore, itself or absorbed the vibration that a part is applied in helical spring 51, or delayed the amplitude of spring and be difficult to cause surge.Consequently, the sudden not conducting of contact site that causes because of surge or use helical spring 51 to damage under the vibration of too harsh (too) for a long time can not take place.
The electric supply installation of the foregoing description is on the elastomeric element that has formed perforate helical spring to be installed, and the electric supply installation 50 that manufactures in advance.
When making so electric supply installation, can adopt when forming elastomeric element simultaneously method with spring forming with injection moulding.
Fig. 7 is the elastomer that utilizes good forming ability, with the one-body molded operation as electric supply installation of moulding while of compression helical spring and elastomeric element.
As shown in Figure 7, the mould used of injection moulding is made of mold 69 and bed die 66.
Bed die 66, it is made of counterdie 64 with the die cavity 63 that can inject the elastomer E that forms baffle plate 62 and pin 65 that helical spring 61 can be installed.
In addition, mold 69, it constitutes by having formed the patrix 68 that inserts the through hole 67 of pin 65.
The degree of depth of die cavity 63 is set at the height b of baffle plate 62, and the compression helical spring 61 of drift c is installed on pin 65.(Fig. 7 (a))
In case with mold 69 with bed die 66 locked modes then pin 65 penetrates through hole 67 and helical spring 61 is compressed to height b.
Under this state, elastomer E injected die cavity 63, then helical spring 61 with confined state and baffle plate 62 by one-body molded.(Fig. 7 (b))
In the time will being taken out from mould by integrated baffle plate 62 and helical spring 61,61 of helical springs are stretched over drift c.Come out from baffle plate 62 in the both ends of the helical spring 61 that has stretched.
So one-body molded, then can more easily on pin, install, and can once make a plurality of electric supply installations by increasing the going out number etc. of mould than mounting spring in baffle holes.
In addition, owing to can more freely set the shape of die cavity, so can cooperate the shape of the motor of being installed.
Fig. 8 and Fig. 9 are another embodiment of this electric supply installation.Electric supply installation 80 is by utilizing crooked leaf spring 81 and baffle plate 82 to constitute.In other the structure, part same as the previously described embodiments has been added identical symbol and has been omitted its explanation.
Be formed the roughly leaf spring 81 of C word shape, its top 81a contacts with power supply terminal 11, and bottom 81b contacts with electrode 41.The drift f of top 81a and bottom 81b than electrode 41 and power supply terminal 11 between big apart from a, and bigger than the size b of baffle plate 82.
When forming this electric supply installation 80, as shown in Figure 9, with leaf spring 81 compression and be installed in the bed die 86 with die cavity 83 of having set width dimensions b, will behind mold 89 locked modes elastomer E be injected die cavity 83.
When then electric supply installation 80 being taken out from mould, the top 81a of leaf spring 81 and bottom 81b are decontroled by compression and are come out from baffle plate 82, and it is spaced apart drift f.
So use leaf spring as spring, as shown in figure 10, then can under continuum of states, form leaf spring 81.If the leaf spring that will form continuously after being installed in the mould cuts off connecting portion 81c, then can easily make a plurality of electric supply installations.
In addition, in each above-mentioned embodiment, power supply terminal 11 or electrode 41 are made into a pair of, also can be a plurality of but the quantity of conducting portion is not limited to this.In addition, the configuration of spring also be not limited to row also can be for triangular arrangement, multiple row configuration etc. is all evenly.
The effect of invention
As described above described, according to technical scheme 1 described invention, from motor side The flat power supply terminal that derive the side, with the electricity of the extremely opposed circuit board of this power supply terminal Between the utmost point, surge or dither can be suppressed, thereby stable electrically contacting can be obtained, and The conducting that the energy acquisition has the high reliability of anti-harsh vibrations.
In addition, according to the structure of technical scheme 2～4, can easily form electric supply installation, root It is enterprising easily this electric supply installation to be installed in motor according to technical scheme 5 described structures Exercise and use.
In addition, according to technical scheme 6 described manufacture methods, because can be with spring and bullet The property parts simultaneously integrated, so can make rapidly in a large number electric supply installation.
Claims (6)
1. electric supply installation, it is by the tabular power supply terminal of deriving from the motor side, with the electrode clamping of the extremely opposed circuit board of this power supply terminal they are electrically connected, the rubber-like electric supply installation, it is characterized in that: this electric supply installation is by the metallic spring of correspondence with the quantity of the described power supply terminal utmost point and described circuit board electrode short circuit, and the elastomeric element of taking in the insulating properties of this spring constitutes, on this elastomeric element, form the hole of counting equal number with the spring of the described spring that is contained, and its gauge is shorter than the drift of described spring, and the interval than described power supply terminal and described circuit board is wide, pushes the utmost point of described power supply terminal and the electrode of described circuit board simultaneously at spring described in the described clamping and described elastomeric element.
2. electric supply installation according to claim 1 is characterized in that: described spring is a compression helical spring.
3. electric supply installation according to claim 2 is characterized in that: described hole is opened on elastomeric element in advance, and described compression helical spring is passed described hole.
4. electric supply installation according to claim 1 is characterized in that: described spring is to utilize crooked plate-shaped springs.
5. according to each described electric supply installation in the claim 1～4, it is characterized in that: at least one side of this electric supply installation is installed at least a portion of described motor.
6. the manufacture method of an electric supply installation is characterized in that having following operation: thus with spring be installed in operation in the injecting molding die, to stroke with this spring of compression and taken in be compressed spring by the mould of locked mode in the injection elastomeric material form the operation of electric supply installation, the electric supply installation that is formed taken out from mould and operation that the described spring stretching, extension that has been compressed protrudes out from described elastomeric material surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003152353A JP4416438B2 (en) | 2003-05-29 | 2003-05-29 | Power supply device |
| JP2003152353 | 2003-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1574553A true CN1574553A (en) | 2005-02-02 |
| CN100505480C CN100505480C (en) | 2009-06-24 |
Family
ID=34047590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100472367A Expired - Fee Related CN100505480C (en) | 2003-05-29 | 2004-05-28 | Power supply device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4416438B2 (en) |
| CN (1) | CN100505480C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010064227A1 (en) * | 2010-12-28 | 2012-06-28 | Robert Bosch Gmbh | Brush holder assembly for a carbon brush |
| JP2015174053A (en) * | 2014-03-17 | 2015-10-05 | 旭サナック株式会社 | electrostatic coating machine |
-
2003
- 2003-05-29 JP JP2003152353A patent/JP4416438B2/en not_active Expired - Fee Related
-
2004
- 2004-05-28 CN CNB2004100472367A patent/CN100505480C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004357416A (en) | 2004-12-16 |
| CN100505480C (en) | 2009-06-24 |
| JP4416438B2 (en) | 2010-02-17 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20130528 |