CN204012994U - A kind of positively engaging formula excitation is directly driven actuating motor - Google Patents
A kind of positively engaging formula excitation is directly driven actuating motor Download PDFInfo
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- CN204012994U CN204012994U CN201420462308.3U CN201420462308U CN204012994U CN 204012994 U CN204012994 U CN 204012994U CN 201420462308 U CN201420462308 U CN 201420462308U CN 204012994 U CN204012994 U CN 204012994U
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- exciting coil
- magnet exciting
- actuating motor
- directly driven
- positively engaging
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Abstract
A kind of positively engaging formula excitation is directly driven actuating motor, comprise stator module and armature rotor assembly, wherein said stator module comprises hollow casing, pole shoe, magnet exciting coil and brush holder assemblies, described pole shoe is sheathed in hollow casing, described magnet exciting coil is sheathed in pole shoe, described armature rotor assembly is sheathed in magnet exciting coil, described magnet exciting coil and armature rotor assembly coupled in series, and by described brush holder assemblies and described hollow casing bonding.The positively engaging formula excitation that the utility model provides is directly driven actuating motor, the magnet exciting coil in described stator module and armature rotor assembly coupled in series, thereby can realize the large and good advantage of cold starting performance of actuating motor braking torque; Meanwhile, the utility model adopts magnet exciting coil and described brush holder assemblies to weld, and the form of described brush holder assemblies and hollow casing bonding has improved the reliability of bonding, effectively reduces the ability loss of each junction, has increased the efficiency of actuating motor.
Description
Technical field
The utility model belongs to universal machine and uses engine component field, is specifically related to a kind of lawn mower engine and directly drives actuating motor by positively engaging formula excitation.
Background technology
The operation principle of actuating motor can illustrate by the operation principle of its critical piece DC motor, DC motor is electric energy to be changed into the equipment of mechanical energy, and it is according to energized conductor, in magnetic field, to be subject to this principle of electromagnetic force for making on basis.Because the torque that a coil produces is too little, and rotary speed unstabilization is fixed, therefore in fact on the armature of motor, is wound with a lot of coils, number of segment also with coil increase and corresponding increase, thereby guarantee to produce enough large torque and stable rotating speed.
Actuating motor generally adopts magnet exciting coil to make stator, and described magnet exciting coil is exactly in coil, to pass through the electric current of variation, along hub of a spool, just has the magnetic line of force to pass through, and the larger magnetic line of force of electric current is also more, until saturated, after turn-off current, the magnetic line of force disappears.
Inventor of the present utility model finds through research, and the conventional positively engaging formula excitation of using in existing lawn mower engine is directly driven in actuating motor, has the little and poor shortcoming of cold starting performance of actuating motor braking torque.
Summary of the invention
The conventional positively engaging formula excitation that the existing lawn mower engine existing for prior art is used is directly driven in actuating motor, have the little and poor technical problem of cold starting performance of actuating motor braking torque, the utility model provides the positively engaging formula excitation that a kind of novel lawn mower engine is used directly to drive actuating motor.
To achieve these goals, the utility model adopts following technical scheme:
A kind of positively engaging formula excitation is directly driven actuating motor, comprise stator module and armature rotor assembly, wherein said stator module comprises hollow casing, pole shoe, magnet exciting coil and brush holder assemblies, described pole shoe is sheathed in hollow casing, described magnet exciting coil is sheathed in pole shoe, described armature rotor assembly is sheathed in magnet exciting coil, described magnet exciting coil and armature rotor assembly coupled in series, and by described brush holder assemblies and described hollow casing bonding.
Than prior art, the positively engaging formula excitation that the utility model provides is directly driven in actuating motor, comprise stator module and armature rotor assembly, magnet exciting coil in described stator module and armature rotor assembly coupled in series, thereby can realize the large and good advantage of cold starting performance of actuating motor braking torque; Simultaneously, than available technology adopting magnet exciting coil, be welded direct to bonding on hollow casing, the utility model adopts magnet exciting coil and the welding of described brush holder assemblies, the form of described brush holder assemblies and hollow casing bonding, improved the reliability of bonding, effectively reduce the ability loss of each junction, increased the efficiency of actuating motor.
Further, described armature rotor assembly is individual layer wave winding, realizes thus actuating motor no-load speed height and the high advantage of production efficiency.
Further, described magnet exciting coil comprises the first magnet exciting coil group and the second magnet exciting coil group, after described the first magnet exciting coil group and the second magnet exciting coil group parallel connection with described armature rotor assembly coupled in series.
Further, described the first magnet exciting coil group comprises the first magnet exciting coil and the second magnet exciting coil, described the first magnet exciting coil and the second magnet exciting coil coupled in series, described the second magnet exciting coil group comprises the 3rd magnet exciting coil and the 4th magnet exciting coil, described the 3rd magnet exciting coil and the 4th magnet exciting coil coupled in series, can make up thus and directly drive the large shortcoming of electric current that actuating motor adopts individual layer wave winding to bring.
Further, described the first magnet exciting coil, the second magnet exciting coil, the 3rd magnet exciting coil and the 4th magnet exciting coil are naked flat type copper wire coiling.
Further, the stator outer diameter of described stator module is 69-71 millimeter, can reduce thus the volume of actuating motor.
Further, described actuating motor also comprises the front end housing being connected with described stator module one end, and described front end housing is provided with chip-removal hole, can prevent that thus chip from piling up at actuating motor one-way clutch gear place.
Further, the one-way clutch that described actuating motor also comprises and described armature rotor assembly is socketed, is connected with anti-dust seal on described front end housing, and described anti-dust seal coordinates with one-way clutch is sheathed, can prevent that thus impurity chip from entering actuating motor inside.
Further, described actuating motor also comprises the electromagnetic switch being connected with described front end housing, and one end that described electromagnetic switch is connected with front end housing is provided with dust cap, can prevent that thus dust impurity from entering electromagnetic switch inside.
Further, described actuating motor also comprises pull-fork assembly and rear end cap, and described rear end cap is connected with the other end of stator module, engagement and the disconnection of described pull-fork assembly for stirring one-way clutch gear and engine flywheel gear ring.
Adopt the positively engaging formula excitation that the utility model provides directly to drive actuating motor, there is following beneficial effect: be simple in structure, volume is little, braking torque is large, no-load speed high and low temperature starting performance is good, have the function of preventing dust chip and leakage chip.
Accompanying drawing explanation
Fig. 1 is that the positively engaging formula excitation that the utility model embodiment provides is directly driven actuating motor blast structural representation.
Fig. 2 is the stator module blast structural representation that the utility model embodiment provides.
Fig. 3 is magnet exciting coil and the armature rotor assembly series connection circuit diagram that the utility model embodiment provides.
In figure, 1, stator module; 11, hollow casing; 12, pole shoe; 13, magnet exciting coil; 131, the first magnet exciting coil; 132, the second magnet exciting coil; 133, the 3rd magnet exciting coil; 134, the 4th magnet exciting coil; 14, brush holder assemblies; 2, armature rotor assembly; 3, electromagnetic switch; 30, the moving iron core of electromagnetic switch; 31, electromagnet coil; 4, dust cap; 5, one-way clutch 4; 51, one-way clutch gear 6, anti-dust seal; 7, front end housing; 8, pull-fork assembly; 9, rear end cap.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Please refer to shown in Fig. 1 and Fig. 2, a kind of positively engaging formula excitation is directly driven actuating motor, comprise stator module 1 and armature rotor assembly 2, wherein said stator module 1 comprises hollow casing 11, pole shoe 12, magnet exciting coil 13 and brush holder assemblies 14, described pole shoe 12 is sheathed in hollow casing 11, described magnet exciting coil 13 is sheathed in pole shoe 12, described armature rotor assembly 2 is sheathed in magnet exciting coil 13, described magnet exciting coil 13 and armature rotor assembly 2 coupled in series, and by described brush holder assemblies 14 and described hollow casing 11 bonding.
Than prior art, the positively engaging formula excitation that the utility model provides is directly driven in actuating motor, comprise stator module and armature rotor assembly, magnet exciting coil in described stator module and armature rotor assembly coupled in series, thereby can realize the large and good advantage of cold starting performance of actuating motor braking torque; Simultaneously, than available technology adopting magnet exciting coil, be welded direct to bonding on hollow casing, the utility model adopts magnet exciting coil and the welding of described brush holder assemblies, the form of described brush holder assemblies and hollow casing bonding, improved the reliability of bonding, effectively reduce the ability loss of each junction, increased the efficiency of actuating motor.
As specific embodiment, described armature rotor assembly 2 is individual layer wave winding.Particularly, in existing positively engaging formula excitation, directly drive in actuating motor, described armature rotor assembly adopts double-deck ripple coiling, and its rotating speed is low, copper cash large usage quantity, simultaneously owing to adopting two layer winding, the manual down line of most employing, its automaticity is low, needs rotor notch to carry out a riveting after coiling, sealing (to prevent that copper cash from throwing away when the motor High Rotation Speed), so efficiency is lower.In the present embodiment, adopt individual layer wave winding, can realize thus actuating motor no-load speed height and the high advantage of production efficiency; Meanwhile, individual layer wave winding coil adopts plug wire, and mechanization degree is high, and notch does not need sealing groove.
As specific embodiment, described magnet exciting coil 13 comprises the first magnet exciting coil group and the second magnet exciting coil group, after described the first magnet exciting coil group and the second magnet exciting coil group parallel connection, with described armature rotor assembly 2 coupled in series, can realize better thus actuating motor no-load speed height and the high advantage of production efficiency; Certainly, can also adopt after the parallel connection of more magnet exciting coil group and described armature rotor assembly coupled in series, to realize identical effect.
As a kind of preferred embodiment, please refer to shown in Fig. 3, described the first magnet exciting coil group comprises the first magnet exciting coil 131 and the second magnet exciting coil 132, described the first magnet exciting coil 131 and the second magnet exciting coil 132 coupled in series, described the second magnet exciting coil group comprises the 3rd magnet exciting coil 133 and the 4th magnet exciting coil 134, described the 3rd magnet exciting coil 133 and the 4th magnet exciting coil 134 coupled in series.Particularly, described the first magnet exciting coil 131 and the second magnet exciting coil 132 series connection form the first magnet exciting coil group, described the 3rd magnet exciting coil 133 and the 4th magnet exciting coil 134 series connection form the second magnet exciting coil group, one end of one end of described the first magnet exciting coil group and the second magnet exciting coil group is all connected with the electromagnet coil 31 of electromagnetic switch in actuating motor 3, the other end of described the first magnet exciting coil group is connected with the first commutator of armature rotor assembly 2, the other end of described the second magnet exciting coil is connected with the second commutator of armature rotor assembly 2, realize thus after described the first magnet exciting coil group and the second magnet exciting coil group parallel connection and described armature rotor assembly 2 coupled in series.Adopt the circuit wiring pattern in the present embodiment, can make up and directly drive the large shortcoming of electric current that actuating motor adopts individual layer wave winding to bring, make a concrete analysis of as follows:
By formula T=C
m* Φ * I, wherein
Draw
Wherein, a is armature rotor assembly parallel branch logarithm, moment of torsion when T is actuating motor load (N.m), and P is actuating motor magnetic pole logarithm, and N is armature rotor assembly conductor number, and φ is air-gap flux amount.When described armature rotor assembly 2 adopts individual layer wave winding, a, T, P, N is fixed value, only having φ is variant variables, therefore, make electric current I less, must increase φ.
And φ ∝ n*i, wherein n is the magnet exciting coil number of turn, i is magnet exciting coil electric current.In the situation that actuating motor external diameter is definite, described magnet exciting coil number of turn n decides substantially, therefore only has the current i that the single magnet exciting coil of increase flows through to increase φ.According to the circuit wiring pattern shown in Fig. 3, the electric current that single magnet exciting coil passes through is that I/2 is (in other the mode of connection, the electric current that single magnet exciting coil passes through is all less than I/2), can increase thus the air-gap flux amount φ of actuating motor, thereby can make up, directly drive the large shortcoming of electric current that actuating motor adopts individual layer wave winding to bring.
As specific embodiment, described the first magnet exciting coil 131, the second magnet exciting coil 132, the 3rd magnet exciting coil 133 and the 4th magnet exciting coil 134 are naked flat type copper wire coiling, can allow thus the volume of magnet exciting coil little, take up room little.
As specific embodiment, the hollow casing 11 of described stator module 1 is cylindrical housings, the diameter of described cylindrical housings is the stator outer diameter of stator module 1, design in conjunction with aforementioned armature rotor and complete machine electromagnetism, the stator outer diameter of described stator module 1 is 69-71 millimeter, can effectively reduce thus the volume of actuating motor.
As specific embodiment, please refer to shown in Fig. 1, described actuating motor also comprises the front end housing 7 being connected with described stator module 1 one end, described front end housing 7 is provided with chip-removal hole (not shown), can prevent that thus chip from, in the 51 places accumulation of actuating motor one-way clutch gear, playing Lou chip effect.
As specific embodiment, please refer to shown in Fig. 1, the one-way clutch 5 that described actuating motor also comprises and described armature rotor assembly 2 is socketed, is connected with anti-dust seal 6 on described front end housing 7, and described anti-dust seal 6 coordinates with one-way clutch 5 is sheathed.Particularly, described anti-dust seal 6 is riveted on front end housing 7, described one-way clutch 5 is provided with annular recess, the annulus that described anti-dust seal 6 is hollow, the anti-dust seal 6 of described hollow is sheathed in the annular recess of one-way clutch 5, can prevent from thus causing actuating motor to lose efficacy after impurity chip from entering actuating motor inside.
As specific embodiment, please refer to shown in Fig. 1, described actuating motor also comprises the electromagnetic switch 3 being connected with described front end housing 7, one end that described electromagnetic switch 3 is connected with front end housing 7 is provided with dust cap 4.Particularly, described electromagnetic switch 3 is provided with the moving iron core 30 of electromagnetic switch, and described dust cap 4 is sheathed on the moving iron core 30 of described electromagnetic switch, can prevent that thus dust impurity from entering electromagnetic switch inside.
As specific embodiment, please refer to shown in Fig. 1, described actuating motor also comprises pull-fork assembly 8 and rear end cap 9, described rear end cap 9 is connected with the other end of stator module 1, described pull-fork assembly 8 is for stirring engagement and the disconnection of one-way clutch gear and engine flywheel gear ring, the power on/off of control system of switching on or off electricity electromagnetic switch 3 that specifically can be by ignition switch realizes, and its specific implementation is well known to those skilled in the art, and does not repeat them here.
The positively engaging formula excitation that the utility model provides is directly driven actuating motor, controls S terminal power on/off control the work of electromagnetic switch 3 and actuating motor and stop by ignition switch.The magnet exciting coil 13 of actuating motor adopts series excitation formula with armature rotor assembly 2, described armature rotor assembly 2 adopts individual layer wave winding, the magnet exciting coil 13 of described stator module 1 adopts the rear connecting mode in parallel of two coil series connection, and described magnet exciting coil 13 adopts naked flat type copper wire coiling, the no-load speed that realizes thus actuating motor is high, the feature that braking torque is large, effectively reduces the volume of actuating motor.Meanwhile, actuating motor bonding adopts negative pole brush and 14 welding of described brush holder assemblies of magnet exciting coil 13, the form of brush holder assemblies 14 and hollow casing 11 bonding, and bonding is reliable, effectively reduces the ability loss of each junction, increases the efficiency of actuating motor.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (10)
1. a positively engaging formula excitation is directly driven actuating motor, comprise stator module and armature rotor assembly, it is characterized in that, described stator module comprises hollow casing, pole shoe, magnet exciting coil and brush holder assemblies, described pole shoe is sheathed in hollow casing, and described magnet exciting coil is sheathed in pole shoe, and described armature rotor assembly is sheathed in magnet exciting coil, described magnet exciting coil and armature rotor assembly coupled in series, and by described brush holder assemblies and described hollow casing bonding.
2. positively engaging formula excitation as claimed in claim 1 is directly driven actuating motor, it is characterized in that, described armature rotor assembly is individual layer wave winding.
3. positively engaging formula excitation as claimed in claim 1 is directly driven actuating motor, it is characterized in that, described magnet exciting coil comprises the first magnet exciting coil group and the second magnet exciting coil group, after described the first magnet exciting coil group and the second magnet exciting coil group parallel connection with described armature rotor assembly coupled in series.
4. positively engaging formula excitation as claimed in claim 3 is directly driven actuating motor, it is characterized in that, described the first magnet exciting coil group comprises the first magnet exciting coil and the second magnet exciting coil, described the first magnet exciting coil and the second magnet exciting coil coupled in series, described the second magnet exciting coil group comprises the 3rd magnet exciting coil and the 4th magnet exciting coil, described the 3rd magnet exciting coil and the 4th magnet exciting coil coupled in series.
5. positively engaging formula excitation as claimed in claim 4 is directly driven actuating motor, it is characterized in that, described the first magnet exciting coil, the second magnet exciting coil, the 3rd magnet exciting coil and the 4th magnet exciting coil are naked flat type copper wire coiling.
6. positively engaging formula excitation as claimed in claim 1 is directly driven actuating motor, it is characterized in that, the stator outer diameter of described stator module is 69-71 millimeter.
7. the positively engaging formula excitation as described in any one in claim 1-6 is directly driven actuating motor, it is characterized in that, described actuating motor also comprises the front end housing being connected with described stator module one end, and described front end housing is provided with chip-removal hole.
8. positively engaging formula excitation as claimed in claim 7 is directly driven actuating motor, it is characterized in that, the one-way clutch that described actuating motor also comprises and described armature rotor assembly is socketed, is connected with anti-dust seal on described front end housing, and described anti-dust seal coordinates with one-way clutch is sheathed.
9. positively engaging formula excitation as claimed in claim 8 is directly driven actuating motor, it is characterized in that, described actuating motor also comprises the electromagnetic switch being connected with described front end housing, and one end that described electromagnetic switch is connected with front end housing is provided with dust cap.
10. positively engaging formula excitation as claimed in claim 9 is directly driven actuating motor, it is characterized in that, described actuating motor also comprises pull-fork assembly and rear end cap, described rear end cap is connected with the other end of stator module, engagement and the disconnection of described pull-fork assembly for stirring one-way clutch gear and engine flywheel gear ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420462308.3U CN204012994U (en) | 2014-08-15 | 2014-08-15 | A kind of positively engaging formula excitation is directly driven actuating motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420462308.3U CN204012994U (en) | 2014-08-15 | 2014-08-15 | A kind of positively engaging formula excitation is directly driven actuating motor |
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| CN204012994U true CN204012994U (en) | 2014-12-10 |
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| CN201420462308.3U Active CN204012994U (en) | 2014-08-15 | 2014-08-15 | A kind of positively engaging formula excitation is directly driven actuating motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882975A (en) * | 2015-06-09 | 2015-09-02 | 泉州开普勒车用电机有限公司 | Motor stator and winding method thereof |
| CN111509929A (en) * | 2020-04-17 | 2020-08-07 | 金华市宏钜工具有限公司 | Winding process of alternating current series excited motor winding |
-
2014
- 2014-08-15 CN CN201420462308.3U patent/CN204012994U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882975A (en) * | 2015-06-09 | 2015-09-02 | 泉州开普勒车用电机有限公司 | Motor stator and winding method thereof |
| CN111509929A (en) * | 2020-04-17 | 2020-08-07 | 金华市宏钜工具有限公司 | Winding process of alternating current series excited motor winding |
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