CN108880124B - Driving motor for automobile cooling fan - Google Patents
Driving motor for automobile cooling fan Download PDFInfo
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- CN108880124B CN108880124B CN201810896239.XA CN201810896239A CN108880124B CN 108880124 B CN108880124 B CN 108880124B CN 201810896239 A CN201810896239 A CN 201810896239A CN 108880124 B CN108880124 B CN 108880124B
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- conductive
- seat
- positioning
- magnetic
- wire harness
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Frames (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention discloses a driving motor for an automobile cooling fan, which comprises a controller component, a stator winding and an outer rotor assembly, wherein the controller component comprises a cooling seat, a rear end cover, a conductive support and a PCBA board, three through holes are formed in the cooling seat, three mounting holes are formed in the conductive support, a positioning caulking groove is formed in the back of the conductive support, a conductive connecting rod is plugged into each mounting hole, the front end of the conductive connecting rod is electrically connected with a corresponding coil of the stator winding, the tail section of the conductive connecting rod is bent and then embedded into the positioning caulking groove, the tail end of each conductive connecting rod extends out of the positioning caulking groove, positioning supporting structures for positioning and supporting the PCBA board are arranged on the cooling seat and the conductive support, and the inductor, the capacitor, the conductive connecting rod and conductive pins of a wire harness are welded and fixed with the corresponding conductive holes in the PCBA board. The driving motor ensures that the stator winding is better electrically connected with the PCBA, the conductive connecting sheet is omitted, the welding operation is simpler, and the conductive efficiency is improved.
Description
Technical Field
The present invention relates to a driving motor for driving a radiator fan of an automobile.
Background
Motors are commonly used power devices for various industries, and currently brushless motors can be controlled by PCBA boards. And brushless motor's structure mainly includes controller subassembly, stator module, rotor subassembly, and wherein the controller subassembly includes the shell of constituteing by radiating seat and rear end cap, be provided with electrically conductive support and PCBA board in the shell, the front of radiating seat is provided with the center pin, be provided with electric capacity installation region, inductance installation region, electrically conductive support installation region, pencil joint region on the radiating seat, electrically conductive support installs in electrically conductive support installation region, and electric capacity inductance is all installed in corresponding region, and PCBA board is located electrically conductive support's the back. However, current controller assemblies suffer from the following disadvantages:
1. the current conductive support mainly comprises a conductive connecting sheet and a plastic support component coated outside the conductive connecting sheet, wherein the conductive connecting sheet is provided with a pointed pin bent towards the direction, the pointed pin is inserted into a connecting hole of a PCBA board and then welded and fixed, the plastic support component exposes a conductive connecting sheet part, then three conductive connecting rods are welded on the exposed part of the conductive connecting sheet, and the other ends of the three conductive connecting rods penetrate through a heat dissipation seat and are electrically connected with a stator winding. The conductive connecting rod is welded with the conductive connecting sheet, the connecting sheet is welded with the PCBA, the other end of the conductive connecting rod is welded with the winding, the welding parts are more, and the manufacturing difficulty is high; especially, the pointed pin on the connecting piece needs to be aligned with a tiny connecting hole of the PCBA board, the assembly difficulty is high, meanwhile, the connection between the connecting piece of the current conductive bracket and the conductive connecting rod is simply fixed by welding, the length of the conductive connecting rod is relatively long, and in the actual assembly process, the connecting rod needs to be broken because the position of the connecting rod is not opposite or deformed, so that the connecting rod and the conductive connecting piece are easy to loosen to cause poor point contact.
2. In the present controller subassembly, bond through the heat conduction glue between PCBA board and the heat dissipation seat, and because the fluctuation of rubber coating volume leads to bonding unevenness between PCBA board and the heat dissipation seat, the support of PCBA board is unreasonable simultaneously, and the roughness is more difficult to guarantee.
3. In the current controller assembly, a wire harness conductive pin is arranged on a conductive support and is used for being connected with a wire harness to conduct electricity, the conductive support is only placed in a conductive support placement area of a heat dissipation seat, after the wire harness is connected with the wire harness conductive pin, the wire harness is possibly pulled in the subsequent use process, the pulling force possibly deforms the conductive support, and then the wire harness conductive pin is in contact with the heat dissipation seat to short-circuit.
4. In the current controller assembly, the conductive connecting rod directly passes through the through hole and then is welded with the stator winding, vibration can occur when the motor works, the conductive connecting rod and the through hole can be contacted in the vibration process, thus intermittent short circuit occurs,
5. when the central shaft in the current controller component is assembled with the heat dissipation seat, the central shaft is pressed into the fixed cylinder of the heat dissipation seat by the press to be tightly matched with the fixed cylinder, however, as the extending length of the central shaft directly influences the assembly clearance between the stator winding and the rotor component, the central shaft needs to axially position the insertion depth, and the current positioning controls the insertion depth of the central shaft by controlling the stroke of the pressure head of the press, so that although the control purpose can be realized, the detection of the stroke of the pressure head possibly has errors, and the absolute positioning cannot be realized.
6. Because the motor size that car radiator fan was used in drive is restricted by installation space, and the size can't be made big, therefore, there is a scope in the magnetic pole quantity of motor, and then the size of magnetic shoe is just than littleer, installs more difficultly like this, and the interval and the position location degree of difficulty of each magnetic shoe are high, and installation accuracy is difficult to guarantee.
7. In the rotating process of the existing outer rotor assembly, the transition between the stator winding and the magnetic poles is harder, so that torque pulsation can be generated to cause noise and vibration.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the driving motor for the automobile cooling fan can enable the stator winding and the PCBA to be better electrically connected, a conductive connecting sheet is omitted, welding operation is simpler, and conductive efficiency is improved.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a driving motor for automotive radiator fan, includes controller subassembly, stator winding and external rotor assembly, the controller subassembly includes the shell that heat dissipation seat and rear end cap are constituteed, be provided with electrically conductive support and PCBA board in the shell, the front of heat dissipation seat is provided with the center pin, stator winding fixes in the front of heat dissipation seat, the center pin is located the center of locating winding, external rotor assembly rotates and installs on the center pin, be provided with electric capacity installation region, inductance installation region, electric wire harness joint region and heat conduction platform on the heat dissipation seat, the electrically conductive support is placed in the electrically conductive support installation region, installs electric capacity in the electric capacity installation region, is provided with the inductance in the inductance installation region, be provided with three through-hole on the heat dissipation seat in the electrically conductive support region, be provided with on the electrically conductive support with three mounting hole that link position one-to-one corresponds, this electrically conductive support back is provided with the constant head tank that extends along the back with the through-hole, and each mounting hole is plugged into electrically conductive connecting rod, this electrically conductive front end runs through the through-hole and with the corresponding coil electrically conductive end of stator winding, this electrically conductive tail end is connected to the electrically conductive wire harness connection board, the electrically conductive wire harness is located the four wire harness support plate, the electrically conductive end of wire harness is located on the locating plate is located the position of the wire harness seat, the wire harness is set up from the four wire harness support plate, the electrically conductive end of the wire harness is located on the wire harness support plate, the wire harness is provided with the wire harness a wire harness, the end, the wire harness is located on the position plate, the wire harness conductive pins are welded and fixed with corresponding conductive holes on the PCBA board.
As a preferred scheme, location bearing structure is including setting up the location supporting shoe on a plurality of frames on electrically conductive support and setting up the location supporting shoe on a plurality of seats on the radiating seat, the back surface parallel and level of location supporting shoe on frame and the seat, the back of location supporting shoe is provided with the reference column on two at least frames, and this reference column has formed the location step with the location supporting shoe back surface on frame, is provided with fixed screw on the location supporting shoe on at least three seat, the PCBA board passes through the heat conduction glue setting on the heat conduction platform, and this PCBA board is supported by location supporting shoe on frame and the seat location supporting shoe, be provided with the locating hole that matches with the reference column on the PCBA board, the PCBA board is fixed on the radiating seat through the screw that installs in fixed screw.
As a preferable scheme, the on-seat positioning support blocks comprise a plurality of on-table positioning support blocks arranged on the heat conduction platform, the height of each on-table positioning support block is higher than the thickness of a heat conduction adhesive layer of the heat conduction platform, and the back surfaces of the on-seat positioning support blocks and the on-table positioning support blocks are flush.
As a preferable scheme, the wire harness mounting plate part comprises a vertical plate part and wing plate parts positioned on two sides of the vertical plate part, an obtuse angle is formed between the wing plate part and the vertical plate part, a guide tightening block is arranged on the outer side face of the wing plate part, the thickness of the front part of the guide tightening block is thinner than that of the back part, a positioning plate part matched with the wing plate part is arranged on the wire harness joint area, and the positioning plate part is in tight fit with the guide tightening block.
As a preferable scheme, be provided with two at least insulating support ejector pins on the face of riser portion, pencil conductive pin includes pin body and connecting cylinder portion, and this pin body extends to the reverse side, the one end and the pin half body coupling of connecting cylinder portion, the other end runs through riser portion and stretches out from riser portion, and the tip of this insulating support ejector pin surpasss the other end of connecting cylinder portion.
As a preferred scheme, the location caulking groove includes first cell wall and the second cell wall of mutually supporting, the one end opening of mounting hole is close to first cell wall and second cell wall, and the one end that the mounting hole was kept away from to first cell wall and second cell wall all is provided with spacing hem, is provided with the anticreep arch of placing conductive connecting rod and deviate from on the side that this first cell wall and second cell wall are relative.
As a preferable scheme, the front center of the heat dissipation seat is provided with a fixed cylinder, the central shaft is fixed in the fixed cylinder, the back of the heat dissipation seat is provided with an adjusting hole for adjusting the axial position of the central shaft, and the adjusting hole is communicated with an inner hole of the fixed cylinder.
As a preferable mode, a sealing plug is arranged in the through hole, and the conductive connecting rod penetrates through the insulating arrangement between the sealing plug and the through hole.
As a preferable scheme, the periphery of the heat dissipation seat is provided with a fixed connection seat fixed with the wire harness plug, the fixed connection seat is matched with the wire harness joint area in position, the periphery of the fixed connection seat is provided with a clamping protrusion convenient to fix with the wire harness plug, and the periphery of the fixed connection seat is also provided with at least two mounting screw holes.
As a preferable scheme, the outer rotor assembly comprises a rotor shell and magnetic shoes arranged in the rotor shell, the rotor shell comprises a circular cylinder part and an end plate part connected with one end of the circular cylinder part, a sleeve part is arranged at the center of the circular cylinder part on the end plate part, a bearing is embedded in the sleeve part and sleeved on the central shaft, at least three screw mounting holes for mounting a cooling fan are uniformly distributed on the front surface of the end plate part, heat dissipation holes are uniformly distributed on the circumference of the end plate part, the number of the magnetic shoes is four to six, the magnetic shoes are uniformly distributed in the circular cylinder part, the edges of the magnetic shoes are all straight lines and parallel to the central line of the circular cylinder part, M N magnetic pole areas and M S magnetic pole areas are uniformly distributed and are arranged at intervals relative to the central circumference of the circular cylinder part, M N-S magnetic poles are formed by M pairs, M is a natural number of 8 or more and 12 or less, the edges of each magnetic shoe are all inclined lines and the edges of the magnetic shoes are parallel to the edges of the magnetic shoes, and the edges of the magnetic shoes are parallel to the edges of the magnetic shoes are 29 degrees.
After the technical scheme is adopted, the invention has the following effects: the conductive bracket of the motor directly connects the stator winding and the PCBA plate through the conductive connecting rod, so that the conductive connecting piece is omitted, the manufacture of the conductive bracket is more convenient, the cost is reduced, the welding position between the conductive connecting rod and the conductive connecting piece in the conventional conductive bracket is saved, the internal resistance is reduced, looseness between the conductive connecting rod and the conductive connecting piece is avoided, the positioning caulking groove can accurately limit the position of the conductive connecting rod, the conductive connecting rod is prevented from deflecting, the conductive connecting rod and the PCBA plate are convenient to weld stably, and the driving motor works more stably.
Because location bearing structure is including setting up the location supporting shoe on a plurality of frames on electrically conductive support and setting up the location supporting shoe on a plurality of seats on the radiating seat, the back surface parallel and level of location supporting shoe on frame and the seat, the back of location supporting shoe is provided with the reference column on at least two frames, and this reference column has formed the location step with the location supporting shoe back surface on frame, is provided with fixed screw on the location supporting shoe on at least three seat, the PCBA board passes through the heat-conducting glue setting on the heat conduction platform, and this PCBA board is supported by location supporting shoe on frame and seat location supporting shoe, be provided with the locating hole that matches with the reference column on the PCBA board, the PCBA board is fixed on the radiating seat through installing the screw in fixed screw. The PCBA board can be accurately positioned and supported by the positioning support structure, so that the flatness of the PCBA board is ensured, and the deformation is reduced.
And because the on-seat positioning support blocks comprise a plurality of on-table positioning support blocks arranged on the heat conduction platform, the height of each on-table positioning support block is higher than the thickness of one heat conduction adhesive layer of the heat conduction platform, and the back surfaces of the on-seat positioning support blocks and the on-table positioning support blocks are flush. The PCBA board can be effectively supported by the bench positioning support block, and the thickness of the heat conducting adhesive layer is limited to be uniform.
Because the wire harness mounting plate part comprises a vertical plate part and wing plate parts positioned on two sides of the vertical plate part, an obtuse angle is formed between the wing plate part and the vertical plate part, a guide tightening block is arranged on the outer side face of the wing plate part, the thickness of the front part of the guide tightening block is thinner than that of the back part, a locating plate part matched with the wing plate part is arranged on the wire harness joint area, the locating plate part is in tight fit with the guide tightening block, so that the wire harness mounting plate part can be conveniently guided when a conductive bracket is placed through the guide inclined surface, the insertion resistance is reduced, and the guide tightening block can be tightly tightened with the locating plate part after the wire harness mounting plate part is installed, so that the conductive bracket is positioned to avoid loosening.
Because be provided with two at least insulating support ejector pins on the face of riser portion again, pencil conductive pin includes pin body and connecting cylinder portion, and this pin body extends to the reverse side, the one end and the pin half body coupling of connecting cylinder portion, the other end runs through riser portion and stretches out from riser portion, and the tip of this insulating support ejector pin surpasses the other end of connecting cylinder portion, and this insulating support ejector pin can effectually support the inside of heat dissipation seat, avoids connecting cylinder portion and heat dissipation seat internal contact and short circuit, especially when the pencil is pulled, and the conductive support can appear warping and lead to connecting cylinder portion to draw close to the heat dissipation seat inner wall, and owing to insulating support ejector pin's existence can stop connecting cylinder portion and heat dissipation seat inner wall contact this moment.
And because the positioning caulking groove comprises a first groove wall and a second groove wall which are matched with each other, the first groove wall and the second groove wall are close to one end opening of the mounting hole, one ends of the first groove wall and the second groove wall, which are far away from the mounting hole, are provided with limit folds, and the opposite side surfaces of the first groove wall and the second groove wall are provided with anti-falling protrusions for placing the conductive connecting rod to separate. When the conductive connecting rod is embedded into the positioning caulking groove, the conductive connecting rod can be prevented from being separated from the positioning caulking groove due to the existence of the anti-separation protrusion.
The front center of the heat dissipation seat is provided with the fixed cylinder, the central shaft is fixed in the fixed cylinder, and the back of the heat dissipation seat is provided with the adjusting hole for adjusting the axial position of the central shaft, and the adjusting hole is communicated with the inner hole of the fixed cylinder. The central shaft can be positioned from the back of the central shaft through the adjusting hole, when the central shaft is pressed into the fixed cylinder, the front of the pressing head of the press is pressed into the positioning shaft, and meanwhile, the positioning shaft can extend into the adjusting hole, so that the pressing depth of the central shaft can be more accurately determined when the press is pressed into the fixed cylinder, and the central shaft is the pressing depth which directly influences the installation clearance between the rotor and the stator assembly, therefore, the more accurate the pressing depth is, the installation clearance between the positioning and the rotor meets the installation requirement, and the installation error is reduced.
And as the through hole is internally provided with the sealing plug, the conductive connecting rod penetrates through the insulation between the sealing plug and the through hole. The sealing plug can effectively prevent the conductive connecting rod from contacting the through hole, and avoid the occurrence of short circuit.
And because the periphery of the heat dissipation seat is provided with a fixed connecting seat fixed with the wire harness plug, the fixed connecting seat is matched with the position of the wire harness joint area, the periphery of the fixed connecting seat is provided with a clamping protrusion convenient to fix with the wire harness plug, and the periphery of the fixed connecting seat is also provided with at least two mounting screw holes. The fixed connecting seat can be suitable for clamping and screw installation in two installation modes, is firm in installation and wide in application.
Because the outer rotor assembly comprises a rotor shell and magnetic shoes arranged in the rotor shell, the rotor shell comprises a circular cylinder part and an end plate part connected to one end of the circular cylinder part, a sleeve part is arranged at the center of the circular cylinder part on the end plate part, a bearing is embedded in the sleeve part and sleeved on the central shaft, at least three screw mounting holes for mounting a radiator fan are uniformly distributed on the front surface of the end plate part, heat dissipation holes are uniformly distributed on the circumference of the end plate part, the number of the magnetic shoes is four to six, the circumferences of the magnetic shoes are uniformly distributed and fixed in the circular cylinder part, the edges of the magnetic shoes are all straight lines and parallel to the central line of the circular cylinder part, M N magnetic pole areas and M S magnetic pole areas are magnetized in the four to six magnetic shoes, the M N magnetic pole areas and the M S magnetic pole areas are uniformly distributed and are arranged at intervals relative to the central circumference of the circular cylinder part, M pairs of N-S magnetic poles are larger than or equal to 8 and smaller than or equal to 12 natural numbers, the edges of each magnetic shoe are parallel to the edges of the magnetic shoes, and the edges of the magnetic shoes are parallel to the edges of the magnetic shoes are in the line of the magnetic shoes and the magnetic shoes are 29 degrees. The edges of the magnetic pole areas are oblique lines, so that the outer rotor assembly is gradual in cutting into the magnetic field of the stator after rotating, the motion is smoother, noise and vibration are reduced, four to six magnetic shoes are selected for reducing torque pulsation, the size of the magnetic shoes is still not too small under the condition that the size of a motor is not large, the manufacture of the magnetic shoes is facilitated, the positioning of the magnetic shoes is facilitated, the production difficulty is reduced, and the installation accuracy of the magnetic shoes is improved.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a perspective view of a structure of an embodiment of the present invention;
FIG. 2 is a perspective view of an embodiment of the present invention with an outer rotor assembly hidden;
FIG. 3 is a front perspective view of a controller assembly according to an embodiment of the present invention;
FIG. 4 is a rear perspective view of a controller assembly according to an embodiment of the present invention;
FIG. 5 is a rear perspective view of an embodiment of the present invention with the rear end cap removed;
FIG. 6 is a rear perspective view of the controller assembly with the rear end cap and PCBA board removed in accordance with an embodiment of the present invention;
fig. 7 is a perspective view of a conductive mount;
FIG. 8 is another angular perspective view of the conductive mount;
FIG. 9 is a schematic view of the back structure of the heat sink;
FIG. 10 is a cross-sectional view at A-A of FIG. 7;
figure 11 is a cross-sectional view of the sealing plug;
FIG. 12 is a perspective view of an outer rotor assembly;
FIG. 13 is an axial cross-sectional view of the rotor assembly;
in the accompanying drawings: 100. a motor; 200. a controller assembly; 300. a stator winding; 400. an outer rotor assembly; 1. a heat dissipation seat; 101. a thermally conductive platform; 102. a capacitor mounting area; 103. a through hole; 104. an inductance installation region; 105. a harness joint region; 106. a conductive bracket mounting area; 107. positioning a supporting block on the table; 108. positioning support blocks on the seat; 109. an adjustment aperture; 110. fixing the screw holes; 111. a fixed cylinder; 112. a positioning plate portion; 2. a rear end cover; 3. a wire harness; 4. a central shaft; 5. a conductive link; 6. a sealing plug; 61. a wire connection collet; 62. a sealing plug body; 7. a harness plug; PCBA board; 9. a capacitor; 10. an inductance; 11. a conductive support; 1101. a mounting hole; 1102. positioning the caulking groove; 11021. a first groove wall; 11022. a second groove wall; 11023. limit flanging; 11024. an anti-falling protrusion; 1103. positioning columns; 1104. a harness mounting plate portion; 11041. a vertical plate part; 11042. a wing plate portion; 1105. a harness conductive pin; 11051. a connecting tube part; 11052. a pin body; 1106. an inductance embedding groove body; 1107. an insulating support ejector rod; 1108. a guide tightening block; 1109. positioning support blocks on the frame; 12. a rotor housing; 1201. a circular cylindrical portion; 1202. an end plate portion; 1203. a sleeve portion; 13. a magnetic shoe; 14. a screw mounting hole; 15. a heat radiation hole; 16. the edges of the pole regions; 17. the edges of the magnetic shoe.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
As shown in fig. 1 to 13, a driving motor 100 for a radiator fan of an automobile includes a controller assembly 200, a stator winding 300, and an outer rotor assembly 400.
The controller assembly 200 comprises a housing formed by a heat dissipation seat 1 and a rear end cover 2, wherein a conductive bracket 11 and a PCBA plate 8 are arranged in the housing, a central shaft 4 is arranged on the front surface of the heat dissipation seat 1, a stator winding 300 is fixed on the front surface of the heat dissipation seat 1, the central shaft 4 is positioned at the center of a positioning winding, an outer rotor assembly 400 is rotatably arranged on the central shaft 4, a capacitor mounting area 102, an inductance mounting area 104, a conductive bracket mounting area 106, a wire harness joint area 105 and a heat conduction platform 101 are arranged on the heat dissipation seat 1, the conductive bracket 11 is placed in the conductive bracket mounting area 106, a capacitor 9 is arranged in the capacitor mounting area 102, an inductance 10 is arranged in the inductance mounting area 104, three through holes 1101 are arranged in the heat dissipation seat 1, three mounting holes 1101 corresponding to the positions of the through holes 103 are arranged on the conductive bracket 11, positioning slots 1102 extending along the back are arranged at the back of the conductive bracket 11, a conductive connecting rod 5 is plugged into each mounting hole, a conductive wire harness 5 penetrates through the front end 103 and penetrates through the conductive bracket 5 and penetrates through the stator winding 1101 and is arranged at the wire harness joint area, a wire harness joint area 101 is embedded in the positioning platform 11, a wire harness mounting plate is arranged at one end of the wire harness mounting plate is embedded in the wire harness mounting plate is arranged at the wire harness mounting plate 1, and the wire harness is embedded in the positioning platform is provided with one end of the wire harness mounting plate is provided with a positioning board 11, and is provided with a wire harness mounting section is provided with a wire harness positioning section, and a wiring harness section is provided with a wiring harness electrical connector 11 is provided with a wiring harness electrical connector 1, and a wiring harness electrical connector is provided with a wiring harness electrical connector is mounted with a wiring harness 1, and a wiring harness has is provided with a wiring harness has a wiring harness and a wiring harness has a wiring harness and a is mounted 1 and a wiring harness and a is mounted material is mounted. The inductor 10, the capacitor 9, the conductive connecting rod 5 and the wire harness conductive pins 1105 are welded and fixed with corresponding conductive holes on the PCBA 8.
An inductor embedding groove 1106 which is convenient for embedding pins of the inductor 10 is arranged on the conductive bracket 11; the conductive bracket 11 is formed by a die and is of a plastic hollow structure, and a conductive connecting sheet is not required to be embedded.
The positioning support structure comprises a plurality of on-frame positioning support blocks 1109 arranged on the conductive support 11 and a plurality of on-seat positioning support blocks 108 arranged on the heat dissipation base 1, the back surfaces of the on-frame positioning support blocks 1109 and the on-seat positioning support blocks 108 are flush, positioning columns 1103 are arranged on the back surfaces of at least two on-frame positioning support blocks 1109, positioning steps are formed on the back surfaces of the positioning columns 1103 and the on-frame positioning support blocks 1109, fixing screw holes 110 are formed on at least three on-seat positioning support blocks 108, the PCBA board 8 is arranged on the heat conduction platform 101 through heat conduction glue, the PCBA board 8 is supported by the on-frame positioning support blocks 1109 and the on-seat positioning support blocks 108, positioning holes matched with the positioning columns 1103 are formed in the PCBA board 8, and the PCBA board 8 is fixed on the heat dissipation base 1 through screws arranged in the fixing screw holes 110.
The on-seat positioning support blocks 108 comprise a plurality of on-table positioning support blocks 107 arranged on the heat conduction platform 101, the height of each on-table positioning support block 107 is higher than the thickness of a heat conduction adhesive layer of the heat conduction platform 101, and the on-seat positioning support blocks 108 are flush with the back surface of each on-table positioning support block 107. Thus, the PCBA board 8 is supported by the seat positioning support block 108, the table positioning support block 107 and the frame positioning support block 1109, so that the support distribution is relatively wide, the support is stable, and the PCBA board 8 is not easy to deform.
As shown in fig. 6 and 7, the harness mounting plate 1104 includes a vertical plate 11041 and wing plates 11042 located on both sides of the vertical plate 11041, the wing plates 11042 are disposed at an obtuse angle with the vertical plate 11041, a guide tightening block 1108 is disposed on an outer side surface of the wing plates 11042, a front portion of the guide tightening block 1108 is thinner than a back portion, a guide inclined surface is formed, a positioning plate 112 adapted to the wing plates 11042 is disposed on the harness joint region 105, and the positioning plate 112 is tightly fitted with the guide tightening block 1108. The guide supporting block is thin on the front surface, so that the guide supporting block is convenient to directly insert into the supporting and positioning plate parts 112, and after the guide supporting block is completely put in place, the conductive bracket 11 is stably positioned between the two positioning plate parts 112 due to the supporting action of the guide supporting block 1108, so that the conductive bracket is not easy to loosen.
As shown in fig. 6, 7 and 8, at least two insulating supporting pins 1107 are provided on the plate surface of the vertical plate portion 11041, the harness conductive pins 1105 include a pin body 11052 and a connection cylinder portion 11051, the pin body 11052 extends to the opposite side, one end of the connection cylinder portion 11051 is connected with the pin half body, the other end penetrates the vertical plate portion 11041 and protrudes from the vertical plate portion 11041, and the end portion of the insulating supporting pin 1107 exceeds the other end of the connection cylinder portion 11051. The insulating support stem 1107 supports the vertical plate 11041 to prevent the short circuit caused by contact between the connection tube 11051 and the inner wall of the heat sink 1.
The positioning caulking groove 1102 comprises a first groove wall 11021 and a second groove wall 11022 which are mutually matched, the first groove wall 11021 and the second groove wall 11022 are close to an opening of one end of the mounting hole 1101, a limiting flange 11023 is arranged at one end, far away from the mounting hole 1101, of the first groove wall 11021 and one end, far away from the mounting hole 1101, of the second groove wall 11022, and an anti-falling protrusion 11024 for placing the conductive connecting rod 5 to fall off is arranged on the opposite side surfaces of the first groove wall 11021 and the second groove wall 11022. Since both ends of the first groove wall 11021 and the second groove wall 11022 are disconnected, the conductive connecting rod 55 is conveniently expanded during embedding, and the anti-falling effect can be achieved due to the anti-falling protrusion 11024 after expanding.
The center of the front surface of the heat dissipation seat 1 is provided with a fixed cylinder 111, the central shaft 4 is fixed in the fixed cylinder 111, the back surface of the heat dissipation seat 1 is provided with an adjusting hole 109 for adjusting the axial position of the central shaft 4, and the adjusting hole 109 is communicated with an inner hole of the fixed cylinder 111. The main purpose of the adjustment hole 109 is to facilitate plugging the positioning shaft from the back, during the assembly of the central shaft 4, the central shaft 4 is pressed into the fixing cylinder 111 from the front by the press, and at this time, the central shaft 4 is plugged into the positioning shaft in the adjustment hole 109 to be positioned when being pressed into a specified position, so that the central shaft 4 can be accurately positioned, and a proper gap between the positioning winding and the outer rotor assembly 400 is ensured.
A sealing plug 6 is arranged in the through hole 103, and the conductive connecting rod 5 penetrates through the sealing plug 6 and is arranged in an insulating manner between the through hole 103 and the through hole 103. The sealing plug 6 comprises a sealing plug body 61 and a wiring collet 61, wherein the sealing plug body 61 is provided with a central hole, the sealing plug body 61 comprises a first mounting barrel section and a second mounting barrel section, the first mounting barrel section is fixedly arranged in the through hole 103, the wiring collet 61 is provided with a mounting step hole, the outer peripheral surface of the second mounting barrel section is provided with annular or thread-shaped anti-slip protrusions, the second mounting barrel section is fixedly arranged in the mounting step hole, and the conductive connecting rod 5 penetrates through the central holes of the sealing plug body 61 and the wiring collet 61. The periphery of the heat dissipation seat 1 is provided with a fixed connection seat fixed with the wire harness plug 7, the position of the fixed connection seat is matched with that of the wire harness joint area 105, the periphery of the fixed connection seat is provided with a clamping protrusion convenient to fix with the wire harness plug 7, and the periphery of the fixed connection seat is also provided with at least two mounting screw holes. As shown in fig. 3 to 5, the harness plug 7 is directly fixed to the fixed connection base, and the fixing manner may be a clamping manner, a screw fixing manner or a fixing manner by both. The periphery of the heat dissipation seat 1 is provided with a fixed connection seat fixed with the wire harness plug 7, the position of the fixed connection seat is matched with that of the wire harness joint area 105, the periphery of the fixed connection seat is provided with a clamping protrusion convenient to fix with the wire harness plug 7, and the periphery of the fixed connection seat is also provided with at least two mounting screw holes.
As shown in fig. 12 and 13, the outer rotor assembly 400 includes a rotor housing 12 and a magnetic shoe 13 disposed in the rotor housing 12, the rotor housing 12 includes a circular cylinder 1201 and an end plate 1202 connected to one end of the circular cylinder 1201, a sleeve portion 1203 is disposed on the end plate 1202 and located at the center of the circular cylinder 1201, a bearing is embedded in the sleeve portion 1203 and sleeved on the central shaft 4, at least three screw mounting holes 14 for mounting a cooling fan are uniformly disposed on the front surface of the end plate 1202, heat dissipation holes 15 are uniformly disposed on the end plate 1202, the number of the magnetic shoes 13 is four to six, and the circumferences of the magnetic shoes are uniformly disposed in the circular cylinder 1201, edges 17 of the magnetic shoes are all straight lines and parallel to the center line of the circular cylinder 1201, M N magnetic pole areas and M S magnetic pole areas are magnetized in the four to six magnetic shoes 13, the M N magnetic pole areas and the M S magnetic pole areas are disposed at intervals with respect to the center of the circular cylinder 1201, the M N magnetic pole areas and the M S magnetic pole areas are uniformly disposed on the front surface of the end plate 1202, the M magnetic shoes are equal to the M magnetic pole areas are equal to the N-S magnetic pole areas and the M magnetic pole areas are equal to the number of the N-S and the M magnetic pole areas are equal to the 6, the magnetic shoe edges of the magnetic shoe 17 are equal to the magnetic shoe 19, and the magnetic shoe edge is equal to the magnetic shoe edge 19 is equal to the magnetic shoe edge 12, and the magnetic shoe edge is parallel to the magnetic shoe edge 17, and the magnetic shoe edge is parallel to the magnetic shoe edge 12, and the magnetic shoe 12 is disposed in the magnetic shell 12, the magnetic assembly is disposed on the central assembly is on the central assembly. Preferably, the intersection angle is 24 °. Since the edges 16 of the pole areas are beveled, the stator winding 300 is smoother in rotation and noise and vibration will be reduced.
The above examples are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and adaptations of the technical solution of the present invention should and are intended to fall within the scope of the present invention as defined in the claims.
Claims (10)
1. The utility model provides a driving motor for auto radiator fan, includes controller subassembly, stator winding and external rotor assembly, the controller subassembly includes the shell that radiator block and rear end cap are constituteed, be provided with conductive support and PCBA board in the shell, the front of radiator block is provided with the center pin, stator winding fixes in the front of radiator block, the center pin is located the center of location winding, external rotor assembly rotates and installs on the center pin, its characterized in that: the heat dissipation seat is provided with a capacitor installation area, an inductor installation area, a conductive bracket installation area, a wire harness joint area and a heat conduction platform, the conductive bracket is placed in the conductive bracket installation area, a capacitor and an inductor are arranged in the capacitor installation area, three through holes are formed in the conductive bracket area, three mounting holes which are in one-to-one correspondence with the through holes are formed in the conductive bracket, the back of the conductive bracket is provided with positioning caulking grooves which are communicated with the three mounting holes and extend along the back, a conductive connecting rod is plugged in each mounting hole, the front end of the conductive connecting rod penetrates through the through holes and is electrically connected with corresponding coils of a stator winding, the tail end of the conductive connecting rod is embedded into the positioning caulking grooves after being bent, the tail end of each conductive connecting rod extends out of the positioning caulking grooves after being bent, one end of the conductive bracket is provided with a wire harness mounting plate part, the wire harness part is located in the wire harness joint area and is provided with four wire harness conductive pins, the heat conduction platform of the seat is provided with a PCBA plate, the PCBA plate is located on the back of the conductive bracket, and the conductive bracket is provided with a conductive positioning caulking plate, and a conductive positioning structure and a conductive PCBA.
2. A driving motor for a radiator fan of an automobile as claimed in claim 1, wherein: the locating support structure comprises a plurality of on-frame locating support blocks arranged on the conductive support and a plurality of on-seat locating support blocks arranged on the radiating seat, the back surfaces of the on-frame locating support blocks and the on-seat locating support blocks are flush, locating columns are arranged on the back surfaces of at least two on-frame locating support blocks, locating steps are formed on the back surfaces of the locating columns and the on-frame locating support blocks, fixing screw holes are formed on the at least three on-seat locating support blocks, the PCBA board is arranged on the heat conducting platform through heat conducting glue, the PCBA board is supported by the on-frame locating support blocks and the on-seat locating support blocks, locating holes matched with the locating columns are formed in the PCBA board, and the PCBA board is fixed on the radiating seat through screws arranged in the fixing screw holes.
3. A driving motor for a radiator fan of an automobile as claimed in claim 2, wherein: the on-seat positioning support blocks comprise a plurality of on-table positioning support blocks arranged on the heat conduction platform, the height of each on-table positioning support block is higher than the thickness of a heat conduction adhesive layer of the heat conduction platform, and the back surfaces of the on-seat positioning support blocks and the on-table positioning support blocks are flush.
4. A driving motor for a radiator fan of an automobile as claimed in claim 3, wherein: the wire harness mounting plate comprises a vertical plate part and wing plate parts positioned on two sides of the vertical plate part, an obtuse angle is formed between the wing plate part and the vertical plate part, a guide tightening block is arranged on the outer side face of the wing plate part, the thickness of the positive part of the guide tightening block is thinner than that of the back part, a guide inclined plane is formed, and a locating plate part matched with the wing plate part is arranged on the wire harness joint area and is in tight fit with the guide tightening block.
5. The driving motor for a radiator fan of an automobile as claimed in claim 4, wherein: the wire harness conductive pin comprises a pin body and a connecting cylinder part, wherein the pin body extends to the reverse side, one end of the connecting cylinder part is connected with the pin half body, the other end of the connecting cylinder part penetrates through the vertical plate part and extends out of the vertical plate part, and the end part of the insulating supporting pin exceeds the other end of the connecting cylinder part.
6. A driving motor for a radiator fan of an automobile as claimed in claim 1, wherein: the positioning caulking groove comprises a first groove wall and a second groove wall which are matched with each other, the first groove wall and the second groove wall are close to an opening at one end of the mounting hole, a limit flanging is arranged at one end, far away from the mounting hole, of the first groove wall and the second groove wall, and anti-falling protrusions for placing the conductive connecting rod to fall off are arranged on opposite side surfaces of the first groove wall and the second groove wall.
7. A driving motor for a radiator fan of an automobile as claimed in claim 1, wherein: the front center of the heat dissipation seat is provided with a fixed cylinder, the central shaft is fixed in the fixed cylinder, the back of the heat dissipation seat is provided with an adjusting hole for adjusting the axial position of the central shaft, and the adjusting hole is communicated with an inner hole of the fixed cylinder.
8. A driving motor for a radiator fan of an automobile as claimed in claim 1, wherein: a sealing plug is arranged in the through hole, and the conductive connecting rod penetrates through the insulation between the sealing plug and the through hole.
9. A driving motor for a radiator fan of an automobile as claimed in claim 1, wherein: the periphery of heat dissipation seat is provided with the fixed connection seat fixed with the pencil plug, and this fixed connection seat and pencil connect regional position adaptation, and the periphery of this fixed connection seat is provided with the card dress arch that conveniently is fixed with the pencil plug, and the periphery of fixed connection seat still is provided with two at least installation screw.
10. A driving motor for a radiator fan for an automobile according to any one of claims 1 to 9, wherein: the outer rotor assembly comprises a rotor shell and magnetic shoes arranged in the rotor shell, the rotor shell comprises a circular cylinder part and an end plate part connected to one end of the circular cylinder part, a sleeve part is arranged at the center of the circular cylinder part on the end plate part, a bearing is embedded in the sleeve part and sleeved on the central shaft, at least three screw mounting holes for mounting a cooling fan are uniformly distributed on the front surface of the end plate part, heat dissipation holes are uniformly distributed on the circumference of the end plate part, the number of the magnetic shoes is four to six, the magnetic shoes are uniformly distributed and fixed in the circular cylinder part, the edges of the magnetic shoes are all straight lines and parallel to the central line of the circular cylinder part, M N magnetic pole areas and M S magnetic pole areas are magnetized in the four to six magnetic shoes, the M N magnetic pole areas and the M S magnetic pole areas are uniformly distributed and are arranged at intervals relative to the central circumference of the circular cylinder part, M pairs of N-S magnetic poles are formed, M is a natural number which is greater than or equal to 8 and less than or equal to 12, the edges of each magnetic pole area are parallel to the edges of the circular cylinder part, and the edges of the magnetic pole areas are parallel to the magnetic pole areas are the edges of the circular cylinder part, and the magnetic areas are parallel to the edges of the circular cylinder part, and the magnetic areas are the magnetic areas, and the edges are the magnetic areas are parallel to the edges, and the magnetic areas are the magnetic areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810896239.XA CN108880124B (en) | 2018-08-08 | 2018-08-08 | Driving motor for automobile cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810896239.XA CN108880124B (en) | 2018-08-08 | 2018-08-08 | Driving motor for automobile cooling fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108880124A CN108880124A (en) | 2018-11-23 |
| CN108880124B true CN108880124B (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810896239.XA Active CN108880124B (en) | 2018-08-08 | 2018-08-08 | Driving motor for automobile cooling fan |
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| Country | Link |
|---|---|
| CN (1) | CN108880124B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2618356Y (en) * | 2003-05-08 | 2004-05-26 | 高玉良 | AC motor for vehicle |
| WO2009149628A1 (en) * | 2008-06-10 | 2009-12-17 | 许晓华 | Outer rotor structure motor and its fan |
| CN107453541A (en) * | 2016-06-01 | 2017-12-08 | 德昌电机(深圳)有限公司 | Motor and the fan with the motor |
| CN107769477A (en) * | 2017-12-06 | 2018-03-06 | 江苏朗信电气有限公司 | A kind of brushless electric machine used on automobile |
| CN207559786U (en) * | 2017-12-06 | 2018-06-29 | 江苏朗信电气有限公司 | A kind of brushless motor used on automobile |
| CN208479406U (en) * | 2018-08-08 | 2019-02-05 | 江苏朗信电气有限公司 | A kind of radiation fan on vehicle driving motor |
-
2018
- 2018-08-08 CN CN201810896239.XA patent/CN108880124B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2618356Y (en) * | 2003-05-08 | 2004-05-26 | 高玉良 | AC motor for vehicle |
| WO2009149628A1 (en) * | 2008-06-10 | 2009-12-17 | 许晓华 | Outer rotor structure motor and its fan |
| CN107453541A (en) * | 2016-06-01 | 2017-12-08 | 德昌电机(深圳)有限公司 | Motor and the fan with the motor |
| CN107769477A (en) * | 2017-12-06 | 2018-03-06 | 江苏朗信电气有限公司 | A kind of brushless electric machine used on automobile |
| CN207559786U (en) * | 2017-12-06 | 2018-06-29 | 江苏朗信电气有限公司 | A kind of brushless motor used on automobile |
| CN208479406U (en) * | 2018-08-08 | 2019-02-05 | 江苏朗信电气有限公司 | A kind of radiation fan on vehicle driving motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108880124A (en) | 2018-11-23 |
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Address after: No. 8, Xinfeng Hexi Road, Tangshi, Yangshe Town, Zhangjiagang City, Suzhou City, Jiangsu Province 215600 Applicant after: Jiangsu Langxin Electric Co.,Ltd. Address before: Jiangsu Langxin Electric Co., Ltd., No. 2, Fuxin Road, Yangshe Town, Zhangjiagang City, Suzhou City, Jiangsu Province, 215600 Applicant before: JIANGSU LANGXIN ELECTRIC Co.,Ltd. |
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