CN104716782A - Motor - Google Patents
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- CN104716782A CN104716782A CN201310681351.9A CN201310681351A CN104716782A CN 104716782 A CN104716782 A CN 104716782A CN 201310681351 A CN201310681351 A CN 201310681351A CN 104716782 A CN104716782 A CN 104716782A
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- electronic unit
- base portion
- bus
- connecting portion
- portion connecting
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Abstract
Provided is a motor which comprises a stator with an armature coil, a bus unit comprising a coil connecting bus electrically connected with the armature coil and an electronic component connecting bus where a plurality of electronic components are welded, and a bus maintaining part for maintaining the bus unit, wherein the electronic component connecting bus comprises an electronic component welding part, the electronic components being welded on the upper end of the electronic component welding part to form a plurality of welding points; a base portion held by the bus maintaining part; and a base portion connection part connecting the electronic component welding part and the base portion. The distance between adjacent welding points is greater than the width of the narrowest part of the base portion connection part. Since the electronic component connecting bus is deformable in multiple directions, the welding strength of the leads of the electronic components can be maintained, and the fracture of the leads can be prevented.
Description
Technical field
The present invention relates to a kind of motor.Especially a kind of motor being equipped with bus unit is related to.
Background technology
A kind of motor is disclosed in Chinese invention patent application prospectus CN101926075A.This motor comprises bus unit and the bus holding member for supporting described bus unit.Described bus unit comprises for multiple coil connection bus of coil power supply be welded with multiple electronic unit connection buss of multiple electronic unit.Described multiple coil connection bus and described multiple electronic unit connection bus are supported by described bus holding member.Fig. 1 shows the stereogram of an electronic unit connection bus in the motor of prior art.As shown in Figure 1, electronic unit connection bus 53 has electronic unit connecting portion 533.Two electronic units (such as resistor and/or capacitor) can be soldered to the end 533a of electronic unit connecting portion 533.
Usually, the heat that motor operationally produces can be delivered to electronic unit.Owing to being subject to the impact of this heat, when motor operation and when motor stops, this electronic unit produces thermal shock, the lead-in wire of the electronic unit be connected with electronic unit connection bus 53 has the possibility deforming and even rupture, particularly when electronic unit connection bus 53 is connected with multiple electronic unit.In addition, when multiple electronic unit is configured along different directions, when the lead-in wire of the electronic unit configured along one of them direction deforms, due to the interaction of power, electronic unit connection bus also can deform to this direction, thus make the electronic unit configured along other directions be subject to larger power, thus cause the lead-in wire of the electronic unit configured along other directions more easily to deform even rupturing.
Therefore, a kind of motor that can prevent the lead-in wire of electronic unit from fracture occurring is badly in need of.
Summary of the invention
Object of the present invention is just to provide a kind of motor solved the problem.
Above-mentioned purpose is realized by following motor, and this motor comprises: stator, has armature coil; Bus unit, has the coil connection bus be electrically connected with described armature coil and the electronic unit connection bus being welded with multiple electronic unit; And bus holding member, for keeping described bus unit, wherein said electronic unit connection bus comprises: electronic unit weld part, and described multiple electronic unit is soldered to the upper end of described electronic unit weld part, thus forms multiple pad; Base portion, is kept by described bus holding member; And base portion connecting portion, connect described electronic unit weld part and described base portion, wherein, the distance between adjacent pad is greater than the width at the narrowest place of described base portion connecting portion.
By electronic unit connection bus being arranged to easily to the structure of multiple directions distortion, keep with the weld strength of the lead-in wire of multiple electronic unit while can prevent the fracture of the lead-in wire of electronic unit.
Accompanying drawing explanation
Above and the following description that those of ordinary skill in the art carries out by way of example by referring to accompanying drawing more clearly can understand above-mentioned and other advantage of the present invention, in the accompanying drawings:
Fig. 1 shows the stereogram of an electronic unit connection bus in the motor of prior art.
Fig. 2 shows the cutaway view of an embodiment of motor of the present invention.
Fig. 3 shows the bus unit of the motor of Fig. 2 and the vertical view of bus holding member.
Fig. 4 (a)-(h) respectively illustrates the cutaway view of the electronic unit connection bus of the motor of Fig. 2.
Fig. 5 (a)-(d) shows the elevational schematic view of the lead-in wire of the electronic unit of the motor of Fig. 2 and the electronic unit weld part of electronic unit connection bus.
Fig. 6 shows the partial sectional view of the bus holding member of the motor of Fig. 2.
Embodiment
Hereafter specifically describe the embodiment of motor of the present invention with reference to the accompanying drawings.Accompanying drawing is not necessarily drawn in proportion.Should be appreciated that the following examples and accompanying drawing are only illustrative, should not be regarded as limiting the scope of the invention.Feature in embodiment can combine as required.
In this article, term " axis " represents the direction of the central axis OO ' of the axle of motor, " radial direction " represents the radial direction centered by the central axis OO ' of axle, " on " side residing for expression " axis " upper rotor part, the side that D score represents " axis " residing for Up Highway UHW holding member.
Fig. 2 shows the cutaway view of an embodiment of motor of the present invention.Motor 1 comprises axle 2, rotor 3, housing 4, stator 5, bus unit 6 and bus holding member 7.Axle 2 has rotation OO '.Rotor 3 is installed on axle 2 and can rotates together with axle 2.Rotor 3 has rotor magnet 3a and rotor core 3b, and wherein rotor core 3b is fixed on axle 2, and rotor magnet 3a is fixed on the outer peripheral face of the rotor core 3b being fixed on axle 2.Housing 4 is the general cylindrical shape centered by rotation OO '.Stator 5 has stator core 5a, insulator 5b and armature coil 5c.Armature coil 5c is formed via insulator 5b is wound in the wire of stator core 5a by wire.Stator 5 is fixed on the inner peripheral surface of housing 4, with rotor 3 diametrically contraposition.Bus unit 6 and bus holding member 7 are positioned at the below of rotor 3 and stator 5.Ball bearing 8a and 8b is maintained respectively in the bottom of the top of housing 4 and bus holding member 7.Axle 2 supports as rotating by by ball bearing 8a and 8b.
In addition, motor 1 also comprises sensor-magnet 9, and it is configured in the below of rotor 3, and is kept by the transducer yoke 10 being fixed on axle 2.Bus holding member 7 maintains multiple Hall IC 11, and makes described multiple Hall IC 11 and sensor-magnet 9 diametrically contraposition.Hall IC 11 is configured at the end face of bus holding member 7, for exporting the hall signal corresponding with the position of sensor-magnet 9.
Motor 1 can be carry out shifting gears for the gearbox of vehicle or the brushless motor of driving of clutch.
Fig. 3 shows the bus unit of the motor of Fig. 2 and the vertical view of bus holding member.Bus holding member 7 is formed by Ins. ulative material (such as resin), and has bus maintenance main part 12 and connector portion 13.Bus keeps main part 12 to have circular shape when overlooking, and connector portion 13 is arranged at the radial outside that bus keeps main part 12, as shown in Figure 3.Bus keeps main part 12 to have bottom 14, multiple electronic unit, and such as multiple resistance 15 and multiple capacitor 16 are configured at the bottom 14 that bus keeps main part 12.
Bus unit 6 comprises and is electrically connected multiple coil connection bus (not shown) of powering to armature coil 5c and the multiple electronic unit connection buss 17 be electrically connected with multiple electronic unit with the armature coil 5c of stator 5.Electronic unit, such as resistance 15 and/or capacitor 16, be connected to the electronic unit weld part of electronic unit connection bus 17.Multiple electronic unit connection bus 17, multiple resistance 15 and multiple capacitor 16 form Hall IC circuit.Hall IC circuit is positioned at bus to each Hall IC 11(to keep the top of main part 12) supply power export the circuit of the hall signal exported by each Hall IC 11 to control device (not shown).As shown in Fig. 3, the lead-in wire of multiple electronic unit can be welded in electronic unit connection bus 17 along different directions, also can be welded in electronic unit connection bus 17 along roughly the same direction.
Fig. 4 (a)-(h) respectively illustrates the cutaway view of the electronic unit connection bus of the motor of Fig. 2.As shown in Figure 4 (a), electronic unit connection bus 17 comprises electronic unit weld part 18, base portion 19 and is connected the base portion connecting portion 20 of electronic unit weld part 18 and base portion 19.Multiple electronic unit is soldered to the end of electronic unit weld part, thus forms multiple pad.Base portion 19 is kept by bus holding member 7.In Fig. 4 (a)-(h), the distance A between adjacent pad X and Y is greater than width B or the B+C at the narrowest place of base portion connecting portion 29.The electronic unit connection bus of such configuration is easily out of shape, thus can prevent the fracture of the lead-in wire of electronic unit while the bonding strength maintaining electronic unit and electronic unit connection bus.Particularly when being configured along different directions by multiple electronic unit, the electronic unit connection bus forming structure like this easily to multiple directions distortion, thus can prevent the fracture of the lead-in wire of the electronic unit along different directions configuration.
As shown in Figure 4 (a), pad X and Y can be positioned at the both sides (relative to base portion connecting portion) of the end of electronic unit weld part 18, and such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.Such as: when two electronic units configure in opposite direction with angle 180 degree, because the two ends connecting electronic unit weld part are subject to rightabout pulling force, easily there is the distortion in torsion direction in base portion connecting portion, namely, the two ends connecting electronic unit weld part can deform simultaneously round about, thus can reduce the possibility of the fracture of the lead-in wire of electronic unit further.Base portion connecting portion 20 can have roughly uniform width B.The width of electronic unit weld part 18 can be greater than the width of base portion connecting portion 20, is easy to like this arrange pad, make the distance of adjacent solder point larger, thus electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.More preferably, the distance A between adjacent pad X and Y is more than 1.2 times of the width (B or B+C) at the narrowest place of base portion connecting portion 29, and such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.When overlooking, pad X and Y can not be overlapping with the narrowest place of base portion connecting portion 20, and such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.
As shown in Figure 4 (b), pad X and Y can be positioned at the both sides (relative to base portion connecting portion) of the end of electronic unit weld part 18.Base portion connecting portion 20 can have uneven width, and its narrowest place is positioned at the side near base portion 19.When overlooking, pad X and Y can not be overlapping with the narrowest place of base portion connecting portion 20.
As shown in Figure 4 (c), pad X and Y can be positioned at the both sides (relative to base portion connecting portion) of the end of electronic unit weld part 18.Base portion connecting portion 20 can have uneven width, and its narrowest place is positioned at the central authorities of base portion connecting portion 20.When overlooking, pad X and Y can not be overlapping with the narrowest place of base portion connecting portion 20.
As shown in Fig. 4 (d), pad X and Y can be positioned at the same side (relative to base portion connecting portion) of the end of electronic unit weld part 18.Base portion connecting portion 20 can have roughly uniform width B.The width of electronic unit weld part 18 can be greater than the width of base portion connecting portion 20.When overlooking, pad X and Y can not be overlapping with the narrowest place of base portion connecting portion 20.
As shown in Fig. 4 (e) He (f), electronic unit connection bus 17 has multiple base portion connecting portion, such as two adjacent base portion connecting portions 20 shown in figure and 20 '.Distance between adjacent pad X and Y is A, adjacent base portion connecting portion 20 and 20 ' the width at the narrowest place be respectively B and C, wherein, A is greater than the summation of B and C, and such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.When overlooking, pad X and Y can not be overlapping with the narrowest place of base portion connecting portion 20
As shown in Fig. 4 (g) He (h), electronic unit connection bus 17 has multiple base portion connecting portion, such as two adjacent base portion connecting portions 20 shown in figure and 20 '.Between adjacent pad X and Y, there is disconnecting unit 21.When overlooking, pad X and Y can not be overlapping with the narrowest place of base portion connecting portion 20.As shown in Fig. 4 (g), pad X and Y than base portion connecting portion 20 and 20 ' closer to disconnecting unit 21.Such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.
Fig. 5 (a)-(d) shows the elevational schematic view of the lead-in wire of the electronic unit of the motor of Fig. 2 and the electronic unit weld part of electronic unit connection bus.The end 18a of the weld part of electronic unit shown in figure 18 and be soldered to the lead-in wire 22 and 23 of the adjacent electronic unit of two of end 18a.As shown in Fig. 5 (a), the direction of lead-in wire 22 and 23 is basically identical.As shown in Fig. 5 (b), the direction of lead-in wire 22 and 23 acutangulates.As shown in Fig. 5 (c), lead-in wire 22 with 23 direction become obtuse angle.As shown in Fig. 5 (d), lead-in wire 22 with 23 direction roughly become 180 degree.When multiple electronic unit configures along different directions (angle between the lead-in wire of adjacent electronics parts is greater than 90 degree), electronic unit connection bus of the present invention easily can be out of shape to multiple directions, thus prevents the fracture of the lead-in wire of electronic unit while maintaining bonding strength.
Fig. 6 shows the partial sectional view of the bus holding member of the motor of Fig. 2.As shown in Figure 6, bus holding member 7 have keep shown in electronic unit connection bus 17(dotted line) terminal board 24, terminal board 24 has the through hole 25 of the base portion connecting portion 18 surrounding electronic unit connection bus 17; At least the end 18a of electronic unit weld part 18 exposes from the below of through hole 25, so that the welding of electronic unit.When analysing and observe, through hole 25 is up-narrow and down-wide trapezium structure, is convenient to insert electronic unit connection bus 17.Meanwhile, when electronic unit connection bus is subject to the pulling force effect of electronic unit, because through hole 25 is up-narrow and down-wide trapezium structure, the electronic unit weld part being positioned at lower end is easier to Impact direction distortion, thus prevents the broken string of the lead-in wire of electronic unit.
The present invention also tool has the following advantages.
In a preferred embodiment, described pad is positioned at the both sides of the end of described electronic unit weld part.Such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.
Described multiple electronic unit configures along different directions in a preferred embodiment.Electronic unit connection bus of the present invention is easily deformable, can prevent the wire breaking of the electronic unit along different directions configuration.
In a preferred embodiment, when overlooking, described pad is not overlapping with the narrowest place of described base portion connecting portion.Such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.
In a preferred embodiment, when analysing and observe, the width of described electronic unit weld part is greater than the width of described base portion connecting portion.Be easy to arrange pad, make the distance of adjacent solder point larger, thus electronic unit connection bus be easier to distortion, prevents electronic unit wire breaking better.
In a preferred embodiment, the narrowest place of described base portion connecting portion is positioned at the central authorities of described base portion connecting portion.Different base portion connecting portion structures is provided.
In a preferred embodiment, the narrowest place of described base portion connecting portion is positioned at the side near described base portion.Different base portion connecting portion structures is provided
In a preferred embodiment, described electronic unit connection bus has multiple base portion connecting portion, and the distance between described adjacent pad is greater than the summation of the width at the narrowest place of adjacent base portion connecting portion.Such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.
In a preferred embodiment, described electronic unit connection bus has multiple base portion connecting portion, has disconnecting unit between described adjacent pad.Such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.
In a preferred embodiment, described pad than described base portion connecting portion closer to disconnecting unit.Such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.
In a preferred embodiment, described bus holding member has the terminal board keeping electronic unit connection bus; Described terminal board has the through hole of the base portion connecting portion surrounding described electronic unit connection bus; Described electronic unit weld part exposes from the below of described through hole; When analysing and observe, described through hole is up-narrow and down-wide trapezium structure.Be convenient to insert described electronic unit connection bus.Meanwhile, when electronic unit connection bus is subject to the pulling force effect of electronic unit, because through hole is up-narrow and down-wide trapezium structure, the electronic unit weld part being positioned at lower end is easier to Impact direction distortion, thus prevents the broken string of the lead-in wire of electronic unit.
In a preferred embodiment, the distance between adjacent pad is more than 1.2 times of the width at the narrowest place of described base portion connecting portion.Such electronic unit connection bus is easier to distortion, prevents electronic unit wire breaking better.
Claims (12)
1. a motor, comprising:
Stator, has armature coil;
Bus unit, has the coil connection bus be electrically connected with described armature coil and the electronic unit connection bus being welded with multiple electronic unit; And
Bus holding member, for keeping described bus unit,
Wherein said electronic unit connection bus comprises:
Electronic unit weld part, described multiple electronic unit is soldered to the end of described electronic unit weld part, thus forms multiple pad;
Base portion, is kept by described bus holding member; And
Base portion connecting portion, connects described electronic unit weld part and described base portion,
It is characterized in that:
Distance between adjacent pad is greater than the width at the narrowest place of described base portion connecting portion.
2. motor according to claim 1, is characterized in that: described pad is positioned at the both sides of the end of described electronic unit weld part.
3. motor according to claim 1, is characterized in that: described multiple electronic unit configures along different directions.
4. motor according to claim 1, is characterized in that: when overlooking, and described pad is not overlapping with the narrowest place of described base portion connecting portion.
5. the motor according to any one of claim 1-4, is characterized in that: when analysing and observe, and the width of described electronic unit weld part is greater than the width of described base portion connecting portion.
6. the motor according to any one of claim 1-4, is characterized in that: the narrowest place of described base portion connecting portion is positioned at the central authorities of described base portion connecting portion.
7. the motor according to any one of claim 1-4, is characterized in that: the narrowest place of described base portion connecting portion is positioned at the side near described base portion.
8. the motor according to any one of claim 1-4, is characterized in that: described electronic unit connection bus has multiple base portion connecting portion, and the distance between described adjacent pad is greater than the summation of the width at the narrowest place of adjacent base portion connecting portion.
9. the motor according to any one of claim 1-4, is characterized in that: described electronic unit connection bus has multiple base portion connecting portion, has disconnecting unit between described adjacent pad.
10. motor according to claim 9, is characterized in that: described pad than described base portion connecting portion closer to disconnecting unit.
11. motors according to any one of claim 1-4, is characterized in that: described bus holding member has the terminal board keeping electronic unit connection bus;
Described terminal board has the through hole of the base portion connecting portion surrounding described electronic unit connection bus;
Described electronic unit weld part exposes from the below of described through hole;
When analysing and observe, described through hole is up-narrow and down-wide trapezium structure.
12. motors according to any one of claim 1-4, is characterized in that: the distance between adjacent pad is more than 1.2 times of the width at the narrowest place of described base portion connecting portion.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681351.9A CN104716782B (en) | 2013-12-12 | 2013-12-12 | Motor |
| US14/548,441 US9509196B2 (en) | 2013-12-12 | 2014-11-20 | Motor |
| EP14197645.6A EP2884632B1 (en) | 2013-12-12 | 2014-12-12 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681351.9A CN104716782B (en) | 2013-12-12 | 2013-12-12 | Motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104716782A true CN104716782A (en) | 2015-06-17 |
| CN104716782B CN104716782B (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310681351.9A Active CN104716782B (en) | 2013-12-12 | 2013-12-12 | Motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586476A (en) * | 2017-09-29 | 2019-04-05 | 日本电产株式会社 | The manufacturing method of motor and motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5851766A (en) * | 1981-09-18 | 1983-03-26 | Matsushita Electric Ind Co Ltd | Motor |
| WO2009113633A1 (en) * | 2008-03-13 | 2009-09-17 | 日本電産株式会社 | Bus bar terminal, bus bar unit, and motor |
| CN101926074A (en) * | 2008-03-13 | 2010-12-22 | 日本电产株式会社 | Motor |
| CN101926075A (en) * | 2008-03-13 | 2010-12-22 | 日本电产株式会社 | Motor |
| CN102570678A (en) * | 2010-11-19 | 2012-07-11 | 日本电产株式会社 | Intermediate connection member, stator and motor |
| JP4975491B2 (en) * | 2007-03-16 | 2012-07-11 | 株式会社ケーヒン | Electric motor and rotary actuator |
| CN203691165U (en) * | 2013-12-12 | 2014-07-02 | 日本电产株式会社 | Motor |
-
2013
- 2013-12-12 CN CN201310681351.9A patent/CN104716782B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5851766A (en) * | 1981-09-18 | 1983-03-26 | Matsushita Electric Ind Co Ltd | Motor |
| JP4975491B2 (en) * | 2007-03-16 | 2012-07-11 | 株式会社ケーヒン | Electric motor and rotary actuator |
| WO2009113633A1 (en) * | 2008-03-13 | 2009-09-17 | 日本電産株式会社 | Bus bar terminal, bus bar unit, and motor |
| CN101926074A (en) * | 2008-03-13 | 2010-12-22 | 日本电产株式会社 | Motor |
| CN101926075A (en) * | 2008-03-13 | 2010-12-22 | 日本电产株式会社 | Motor |
| CN102570678A (en) * | 2010-11-19 | 2012-07-11 | 日本电产株式会社 | Intermediate connection member, stator and motor |
| CN203691165U (en) * | 2013-12-12 | 2014-07-02 | 日本电产株式会社 | Motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109586476A (en) * | 2017-09-29 | 2019-04-05 | 日本电产株式会社 | The manufacturing method of motor and motor |
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| Publication number | Publication date |
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| CN104716782B (en) | 2018-08-14 |
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