Unlock instant, AI-driven research and patent intelligence for your innovation.
Armature core, armature and motor
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of armature iron core and iron core, which is applied in the field of electric motors, can solve problems such as discharge, and achieve the effect of improving the space factor of the coil and improving the balance.
Active Publication Date: 2018-10-16
MITSUBA CORP
View PDF5 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Therefore, if the voltage between the rectifiers is large, discharge may occur when the brushes are separated from the rectifiers
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
no. 1 approach
[0051] (motor with reducer)
[0052] Next, refer to Figure 1 to Figure 6 A first embodiment of the present invention will be described.
[0053] figure 1 It is an external appearance side view of a motor with a reducer using a motor including an armature core of the present invention. figure 2 is its longitudinal sectional view.
[0054] Such as figure 1 and figure 2 As shown, a motor 1 with a reducer is used to drive a windshield wiper of an automobile, for example, and it includes a motor 2 and a reduction mechanism 4 connected to a rotating shaft 3 of the motor 2 . The motor 2 has a bottomed cylindrical yoke 5 serving also as a motor housing, and an armature 6 rotatably provided in the yoke 5 .
[0055] The cylindrical portion 53 of the yoke portion 5 is formed in a substantially cylindrical shape, and four rectifier-type magnets 7 are arranged on the inner peripheral surface of the cylindrical portion 53 . In addition, the magnet 7 is not limited to the rectifi...
no. 2 approach
[0132] Figure 9 It is a figure seen from the axial direction of the armature core of 2nd Embodiment.
[0133] Such as Figure 9 As shown, in the above armature core 8B, convex portions 12a2 are provided as restricting portions on both side surfaces in the width direction of the winding main body portion 12a of each pole tooth 12 . The said convex part 12a2 also plays the same role as the level|step difference 12a1 of 1st Embodiment.
no. 3 approach
[0135] Figure 10A It is an explanatory view of the armature core of the third embodiment, and is a view of the armature core when viewed from the axial direction. Figure 10B yes Figure 10A Enlarged view of part C.
[0136] Such as Figure 10A As shown, in the aforementioned armature core 8C, recessed portions 12a3 for fitting the winding wires 14 constituting the coil 91 of the first layer are provided on both sides in the width direction of the winding main body portion 12a of each pole tooth 12 as restricting portions. .
[0137] In addition, if Figure 10B As shown, the depth d of the recessed portion 12 a 3 is set to be equal to or greater than the radius h of the coil 14 . According to the armature core 8C, the coil 14 ( 14C) fits into the concave portion 12 a 3 formed on the winding mounting surface, so that the coil 14C itself functions as a step similar to that in the first embodiment. Therefore, it is possible to prevent the positional displacement of the win...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
An armature core (8A), having a plurality of pole teeth (12) extending radially, and a plurality of coils (91, 92) wound in a concentrated winding manner on the winding body part (12a) of each pole tooth , 93), at least the lowermost winding (14) of the coil of the first layer is wound in such a way as to be in close contact with the winding mounting surface on the base end side of the winding main body, and the coil of the second layer wound afterwards Winding is performed in such a manner that at least a part of the coil of the second layer overlaps the coil of the first layer, wherein at least a part of the winding mounting surface of the coil of the first layer on the outer periphery of the winding main body is provided with a A step (12a1) of a restricting part that restricts the positional displacement of the lowermost winding of the coil of the first layer in the extending direction of the winding main body.
Description
technical field [0001] The present invention relates to an armature core in which a plurality of coils are wound on each pole tooth, an armature formed by winding a plurality of coils on the armature core, and a motor using the armature. [0002] this application claims priority based on Japanese Patent Application No. 2014-042659 for which it applied in Japan on March 5, 2014, and uses the content of this application here. Background technique [0003] As an electric motor, for example, a DC motor with brushes is known in which a motor magnet is disposed on the inner peripheral surface of a bottomed cylindrical yoke, and an armature is rotatably disposed closer to the motor magnet than the motor magnet. radially inner position (for example, refer to Patent Document 1). [0004] The armature includes: an armature core, the armature core is provided with a plurality of pole teeth extending radially outward on the outer periphery of the circular core body fixed on the rotatin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More