CN111740547B - Motor, vehicle-mounted product, and method for assembling motor - Google Patents
Motor, vehicle-mounted product, and method for assembling motor Download PDFInfo
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- CN111740547B CN111740547B CN201910221766.5A CN201910221766A CN111740547B CN 111740547 B CN111740547 B CN 111740547B CN 201910221766 A CN201910221766 A CN 201910221766A CN 111740547 B CN111740547 B CN 111740547B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000006698 induction Effects 0.000 claims abstract description 113
- 238000003780 insertion Methods 0.000 claims description 27
- 230000037431 insertion Effects 0.000 claims description 27
- 239000012212 insulator Substances 0.000 claims description 8
- 238000002788 crimping Methods 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 7
- 210000000078 claw Anatomy 0.000 claims description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 230000002950 deficient Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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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
- H02K11/0094—Structural association with other electrical or electronic devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
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Abstract
The embodiment of the invention provides a motor, a vehicle-mounted product and an assembling method of the motor. The motor has: a rotating shaft extending along a central axis and rotating around the central axis; a motor main body disposed around the rotating shaft, the motor main body including a rotor that rotates around the center axis and a stator disposed to be opposed to the rotor in a radial direction; a casing which is disposed around the motor main body and has an opening at least at one axial side; the induction magnetic ring assembly is fixed at one end of the rotating shaft and is provided with an induction magnetic ring; and a circuit board configured with a sensor element, the circuit board being configured between the induction magnetic ring assembly and the motor body. The embodiment of the invention can reduce the axial height of the motor, conveniently assemble the motor and reduce the reject ratio.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor, a vehicle-mounted product and an assembling method of the motor.
Background
In a Dual Clutch Transmission (DCT) motor, an induction magnet ring and a circuit board on which a sensor element such as a hall element is mounted are generally arranged.
In the conventional art, an induction magnet ring is disposed between a circuit board and a motor main body, the motor main body includes at least a stator and a rotor, a coil is wound around the stator, a lead-out wire of the coil is connected to a bus bar block covering an opening of the motor main body, and the circuit board is fixed to the bus bar block.
It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. These solutions are not considered to be known to the person skilled in the art merely because they are set forth in the background section of the present application.
Disclosure of Invention
The inventor found that the relative angle between the induction magnet ring and the sensor element needs to be adjusted during the assembly process of the motor, and the induction magnet ring is arranged on the side of the circuit board close to the motor body, so that the relative angle can be adjusted only by adjusting the circuit board. In addition, the circuit board is usually fixed to the bus bar assembly, and the bus bar assembly is connected to the lead-out wires of the coil, so that the connection between the bus bar assembly and the lead-out wires of the coil is easily damaged in the process of adjusting the circuit board (i.e., the bus bar assembly), thereby affecting the assembly of the motor and increasing the defective rate.
In order to solve the above problems or other similar problems, embodiments of the present invention provide a motor, a vehicle-mounted product, and an assembling method of the motor, which can prevent damage to the connection between a bus bar assembly and a coil lead-out wire, further reduce the axial height of the motor, facilitate assembly of the motor, and reduce a defective rate.
According to a first aspect of embodiments of the present invention, there is provided a motor having: a rotating shaft extending along a central axis and rotating around the central axis; a motor main body disposed around the rotating shaft, the motor main body including a rotor that rotates around the center axis and a stator disposed to be opposed to the rotor in a radial direction; a casing disposed around the motor main body and having an opening at least at one axial side; the induction magnetic ring assembly is fixed at one end of the rotating shaft and is provided with an induction magnetic ring; and a circuit board configured with a sensor element, the circuit board being configured between the induction magnetic ring assembly and the motor body.
According to a second aspect of embodiments of the present invention, there is provided a vehicle-mounted product having the motor of the first aspect described above.
According to a third aspect of an embodiment of the present invention, there is provided an assembling method of a motor having: a rotating shaft extending along a central axis and rotating around the central axis; a motor main body disposed around the rotating shaft, the motor main body including a rotor that rotates around the center axis and a stator disposed to be opposed to the rotor in a radial direction, the stator having a plurality of teeth and coils wound around the teeth; a casing disposed around the motor main body and having an opening at least at one axial side; the induction magnetic ring assembly is fixed at one end of the rotating shaft and is provided with an induction magnetic ring; and a circuit board configured with a sensor element and configured between the induction magnet ring assembly and the motor body, the method comprising: disposing the circuit board at one end of the rotating shaft relative to the motor main body; rotatably disposing the inductive magnetic ring assembly relative to the circuit board at an end of the rotating shaft away from the motor body; rotating the induction magnet ring assembly so that a predetermined portion of the induction magnet ring assembly is axially opposed to the sensor element; and fixing the induction magnetic ring assembly to the rotating shaft.
The embodiment of the invention has the advantages that the axial height of the motor can be reduced by arranging the circuit board provided with the sensor element between the induction magnetic ring assembly and the motor main body, the induction magnetic ring assembly can be conveniently adjusted, the damage to the connection between the bus bar assembly and the coil outgoing line is avoided, the assembly of the motor is conveniently carried out, and the reject ratio is reduced.
Embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings. It should be understood that the embodiments of the invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising/comprises/having" when used herein, is taken to specify the presence of stated features, integers or components, but does not preclude the presence or addition of one or more other features, integers or components.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic view of a motor of embodiment 1 of the present invention.
Fig. 2 is a sectional view of a motor of embodiment 1 of the present invention.
Fig. 3 is an exploded view of the motor of embodiment 1 of the present invention.
Fig. 4 is a schematic view of an induction magnet ring assembly of embodiment 1 of the present invention.
Fig. 5 is a schematic view of an embodiment of a fixing structure in which the induction magnetic ring assembly of embodiment 1 of the present invention is fixed to one end of the rotating shaft.
Fig. 6 is a sectional view of the fixing structure shown in fig. 5.
Fig. 7 is a schematic view of another embodiment of a fixing structure of the induction magnetic ring assembly of embodiment 1 of the present invention fixed to one end of the rotating shaft.
Fig. 8 is a schematic view of another embodiment of a fixing structure of the induction magnet ring assembly of embodiment 1 of the present invention fixed to one end of the rotating shaft.
Fig. 9 is a schematic view of still another embodiment of a fixing structure in which an induction magnetic ring assembly of example 1 of the present invention is fixed to one end of a rotating shaft.
Fig. 10 is a schematic view of an assembling method of a motor of embodiment 2 of the present invention.
Fig. 11 is another schematic view of the assembling method of the motor of embodiment 2 of the invention.
Detailed Description
The foregoing and other features of the invention will become apparent from the following description taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the embodiments in which the principles of the invention may be employed, it being understood that the invention is not limited to the embodiments described, but is intended to cover all modifications and equivalents as fall within the scope of the appended claims.
In embodiments of the invention, the singular forms "a", "an", and the like include the plural forms and are to be construed broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Furthermore, the term "according to" should be understood as "according at least in part to \8230;" based on "should be understood as" based at least in part on \8230; "unless the context clearly indicates otherwise.
In the following description of the present invention, for the sake of convenience of description, a center line about which a rotation shaft of a motor can rotate is referred to as a "center axis", a direction that is the same as or parallel to a direction extending along the center axis is referred to as an "axial direction", a radial direction about the center axis is referred to as a "radial direction", and a direction around the center axis is referred to as a "circumferential direction".
The following describes embodiments of the present invention with reference to the drawings.
Example 1
The present embodiment 1 provides a motor. Fig. 1 is a schematic view of a motor of the present embodiment, fig. 2 is a sectional view of the motor of the present embodiment, and fig. 3 is an exploded view of the motor of the present embodiment.
As shown in fig. 1 to 3, the motor 10 has a rotating shaft 11, a motor main body 12, a casing 13, an induction magnet ring assembly 14, and a circuit board 15.
Wherein, as shown in fig. 2 and 3, the rotary shaft 11 extends along the central axis O-O 'and rotates around the central axis O-O'; a motor main body 12 disposed around the rotary shaft 11, the motor main body 12 including a rotor 121 rotating around the center axis O-O' and a stator 122 disposed radially opposite to the rotor 121; the housing 13 is disposed around the motor main body 12 and has an opening at least on one side in the axial direction (i.e., the upper side in fig. 2); the induction magnetic ring assembly 14 is fixed at one end of the rotating shaft 11, and the induction magnetic ring assembly 14 is provided with an induction magnetic ring 141; the sensor element 16 is disposed on the circuit board 15, and the circuit board 15 is disposed between the induction magnet ring assembly 14 and the motor body 12.
With the above embodiment, the circuit board 15 on which the sensor 16 is disposed between the induction magnet ring assembly 14 and the motor main body 12. Compared with the conventional structure, the distance between the induction magnet ring assembly 14 and the motor main body 12 is fixed, and the circuit board originally arranged axially above the induction magnet ring assembly and the motor main body is arranged between the induction magnet ring assembly and the motor main body, so that the axial height of the motor 10 can be reduced. Moreover, since the inductive magnetic ring assembly 14 is not shielded by the circuit board 15, the position of the inductive magnetic ring assembly 14 relative to the sensor element 16 can be easily adjusted when the motor 10 is assembled, the assembly of the motor 10 is facilitated, and the defective rate of the motor 10 is reduced.
In the present embodiment, the sensor element 16 may be, for example, a hall element, but the present embodiment is not limited thereto.
In the present embodiment, as shown in fig. 2, a predetermined portion of the induction magnet ring 141 is axially opposed to the sensor element 16. Thus, the requirement for the arrangement of the positional relationship between the induction magnet ring 141 and the sensor element 16 can be satisfied; further, the sensor element 16 can be disposed by making full use of the space in the axial direction, and thus the space for disposing other components on the circuit board 15 can be enlarged, and the radial dimension of the motor 10 can be reduced.
Fig. 4 is a schematic view of the inductive magnet ring assembly 14 of the present embodiment. In this embodiment, as shown in fig. 2 to 4, the induction magnetic ring assembly 14 may further include a cover 142 and a bracket 143, wherein the cover 142 covers the induction magnetic ring 141 on a side (i.e., a lower side in fig. 2) of the induction magnetic ring 141 facing the sensor element 16, and the bracket 143 supports the induction magnetic ring 141 on the other side (i.e., an upper side in fig. 2) of the induction magnetic ring 141. This facilitates the installation of the induction magnet ring 141 at one end of the rotary shaft 11.
In the present embodiment, the cover 142 may be made of a material that is not easily permeable to magnetic, such as stainless steel, resin, or the like. By disposing the cover 142 on the side of the magnetic induction ring 141 facing the sensor element 16, the cover 142 is less likely to affect the result of the induction by the magnetic induction ring 141, and the sensitivity and accuracy of the induction can be ensured.
In addition, the bracket 143 may be made of a material having a relatively high hardness, so that the support of the induction magnet ring 141 by the bracket 143 can be ensured.
In the present embodiment, as shown in fig. 4, the holder 143 may have a holder main body 1431 and a support wall 1432, wherein the holder main body 1431 extends in a radial direction, supporting the induction magnet ring 141; the support wall 1432 is formed in a cylindrical shape, and extends from the holder main body 1431 toward a side away from the induction magnet ring 141 in the axial direction, one end of the rotation shaft 11 is inserted into a space surrounded by the support wall 1432, and the support wall 1432 is fixed to the one end of the rotation shaft 11. Accordingly, the induction magnet ring assembly 14 can be reliably fixed to one end of the rotating shaft 11, and the position relationship between the predetermined portion of the induction magnet ring 141 and the sensor element 16 can be adjusted by easily rotating and fixing the induction magnet ring assembly 14 by the support wall 1432.
The bracket 143 of the present embodiment is not limited to the above configuration, and the bracket 143 may be configured in other configurations. For example, the bracket 143 may be configured to have only a bracket main body that extends in the radial direction and supports the induction magnet ring 141, and a through hole into which one end of the rotation shaft 11 is inserted is formed in the bracket main body.
A fixing structure in which the induction magnet ring assembly 14 is fixed to one end of the rotating shaft 11 will be described below.
Fig. 5 is a schematic view of an embodiment of a fixing structure in which the induction magnet ring assembly 14 is fixed to one end of the rotating shaft 11. Fig. 6 is a sectional view of the fixing structure shown in fig. 5. The fixing structure is a fixing structure in a case where the bracket 143 has a bracket main body and a through hole is formed in the bracket main body.
In this embodiment, as shown in fig. 5 and 6, a fixing portion 111 extending in the axial direction is formed on an end surface 11s at one end of the rotating shaft 11, the outer diameter of the fixing portion 111 is smaller than the outer diameter of the end surface 11s at the one end of the rotating shaft 11, a fixing ring 21 is disposed on a side (i.e., an upper side in fig. 5 and 6) of the induction magnet ring assembly 14 away from the motor main body 12, the fixing ring 21 is fitted around the outer periphery of the fixing portion 111 by interference, and an end surface 21s of the fixing ring 21 facing the induction magnet ring assembly 14 and the end surface 11s at the one end of the rotating shaft 11 sandwich the induction magnet ring assembly 14.
Therefore, after the induction magnet ring assembly 14 is adjusted by rotation, the induction magnet ring assembly 14 can be fixed to the rotating shaft 11 by interference fit of the fixing ring 21 and the rotating shaft 11.
Fig. 7 is a schematic view of another embodiment of a fixing structure in which the induction magnet ring assembly 14 is fixed to one end of the rotating shaft 11. In this fixing structure, the holder 143 has a holder main body 1431, and a through hole is formed in the holder main body 1431.
In this embodiment, as shown in fig. 7, an insertion hole 11h is formed in an end surface of one end of the rotating shaft 11, the motor 10 further includes an insertion pin 19, the insertion pin 19 includes a base 191 and an insertion portion 192 that protrudes from the base 191 and is inserted into the insertion hole 11h through a through hole formed in the bracket body 1431, the insertion portion 192 is fixed in the insertion hole 11h by interference fit with the one end of the rotating shaft 11, and an end surface 191a of the base 191 facing the induction magnet ring assembly 14 and an end surface 11a of the one end of the rotating shaft 11 sandwich the induction magnet ring assembly 14.
Thus, after the rotation adjustment of the induction magnet ring assembly 14, the induction magnet ring assembly 14 can be fixed to the rotating shaft 11 by the engagement of the insertion pin 19 with the rotating shaft 11.
Fig. 8 is a schematic view of still another embodiment of a fixing structure in which the induction magnet ring assembly 14 is fixed to one end of the rotating shaft 11. In this fixed configuration, the bracket 143 has a bracket body 1431 and a support wall 1432.
In this embodiment, as shown in fig. 8, the fixing portion 112 extending in the axial direction is formed on an end surface (not shown) of one end of the rotary shaft 11, the shape of the cross section of the fixing portion 112 is different from the shape (i.e., circular shape) of the end surface of the one end of the rotary shaft 11, and the support wall 1432 is interference-fitted with the outer periphery of the fixing portion 112.
Therefore, after the induction magnet ring assembly 14 is rotationally adjusted, the induction magnet ring assembly can be pressed into interference fit with one end of the rotating shaft 11, and thus, the induction magnet ring assembly 14 can be easily fixed with the rotating shaft 11 without using other parts.
Fig. 9 is a schematic view of still another embodiment of a fixing structure in which the induction magnet ring assembly 14 is fixed to one end of the rotating shaft 11. In this fixed configuration, the bracket 143 has a bracket body 1431 and a support wall 1432.
In this embodiment, as shown in fig. 9, an insertion hole 11h is formed in an end surface of one end of the rotary shaft 11, the motor 10 further includes an insertion pin 19, the insertion pin 19 includes a base 191 and an insertion portion 192 protruding from the base 191 and inserted into the insertion hole 11h, and the support wall 1432 is interference-fitted with an outer peripheral surface 11s of a portion of the rotary shaft 11 where the insertion pin 19 is inserted.
Thus, after the rotation adjustment of the induction magnet ring assembly 14, the induction magnet ring assembly 14 and the rotating shaft 11 can be fixed by interference fit between the support wall 1432 and the rotating shaft 11 into which the insertion pin 19 is inserted into the insertion hole 11 h.
The fixing structure of the induction magnet ring assembly 14 and the one end of the rotating shaft 11 according to the present embodiment is not limited to the above embodiment, and may be realized by other embodiments.
In the present embodiment, as shown in fig. 1 to 3, the motor 10 may further have a bus bar assembly 17 fixed to the casing 13 and covering the opening, as shown in fig. 2 and 3, the induction magnet ring assembly 14 is located on a side (i.e., an upper side in fig. 2) of the bus bar assembly 17 far away from the motor main body 12, and the circuit board 15 is located between the induction magnet ring assembly 14 and the bus bar assembly 17.
By disposing the circuit board 15 between the induction magnet ring assembly 14 and the bus bar assembly 17 in this manner, the axial height of the motor 10 can be reduced, and the position of the induction magnet ring assembly 14 relative to the sensor element 16 can be adjusted by rotating the motor 10, thereby facilitating the assembly of the motor 10. Further, by fixing the bus bar assembly 17 to the housing 13, the structure of the motor 10 during and after assembly can be made more reliable.
In the present embodiment, as shown in fig. 1 and 2, the bus bar assembly 17 may have a main body portion 171 and an interface portion 172, the main body portion 171 covers the above-mentioned opening of the housing 13, the interface portion 172 extends radially outward from the main body portion 171, a bus bar 18 is provided in the interface portion 172, the bus bar 18 is connected to an external power source (not shown), and the stator 122 has a plurality of teeth (not shown) and an insulating member 1221 covering at least a part of the teeth; and a coil 1222 wound around the tooth with an insulator 1221 interposed therebetween, and the bus bar 18 and the lead line 1222a of the coil 1222 are connected by pressure welding via the insulator 1221. Thus, by pressure-bonding the bus bar 18 and the lead-out wire 1222a of the coil 1222, the connection therebetween can be more secured, and the axial height of the motor 10 can be further reduced.
With the crimping technique, the bus bar assembly 17 cannot be rotated in the circumferential direction after the crimp connection is adopted. In the above-described embodiment, by fixing the induction magnet ring assembly 14 to the axially upper side of the bus bar assembly 17, the relative positions of the induction magnet ring assembly 14 and the sensor element 16 can be adjusted by adjusting the induction magnet ring assembly 14 without adjusting the bus bar assembly 17, thus making it possible to employ the crimping technique.
Here, the crimp connection is a connection made by Pressfit technology, and a specific implementation of the crimp connection can be seen inhttps://www.semikron.com/zh/innovation-technology/construction-and- connection-technology/press-fit-technology.html。
The crimping connection with the insulator 1221 means that the insulator 1221 is formed into a predetermined shape to realize the crimping connection as needed. For example, the insulator 1221 may be provided with a groove, the lead wire 1222a of the coil 1222 may be disposed in the groove, the bus bar 18 may be provided with a U-shaped clamping portion inserted into the groove, and the groove may clamp the U-shaped clamping portion, and the U-shaped clamping portion may clamp the lead wire 1222a of the coil 1222, thereby achieving the pressure-contact connection. Therefore, the crimping connection can be realized without additionally arranging a connecting part or welding operation, and the assembly is simplified. In addition, by implementing the crimping connection in the groove of the insulator 1221, an additional space in the axial direction of the motor 10 is not occupied, thereby further reducing the axial height of the motor 10.
In the present embodiment, as shown in fig. 1 and 3, a bus bar assembly fixing portion 173 may be provided on an outer circumference of the bus bar assembly 17, a claw portion 131 bent toward the bus bar assembly fixing portion 173 is provided at an end of the housing 13 close to the bus bar assembly 17, and the claw portion 131 clamps the bus bar assembly fixing portion 173, thereby fixing the bus bar assembly 17 to the housing 13. This allows the bus bar assembly 17 and the housing 13 to be easily molded, and also allows the bus bar assembly 17 to be reliably fixed to the housing 13.
In the present embodiment, as shown in fig. 1 and 3, the bus bar fixing part 173 may be, for example, a rim recessed from a surface of the bus bar assembly 17. Thus, the claw portion 131 is engaged with the edge to fix the bus bar assembly 17 to the housing 13, and the space occupied by the fixing structure can be saved. But the embodiment is not limited thereto.
In the present embodiment, the circuit board 15 may be disposed at any position between the bus bar assembly 17 and the induction magnet ring assembly 14. In one embodiment, as shown in fig. 2, the distance between the circuit board 15 and the motor main body 12 in the axial direction may be configured to be smaller than the distance between the surface 172a of the interface portion 172 on the side away from the motor main body 12 and the motor main body 12. That is, the circuit board 15 is disposed on the lower side in fig. 2 than the surface 172a of the interface 172 on the side away from the motor main body 12. This can further reduce the axial height of the motor 10.
With the motor of the present embodiment, the circuit board on which the sensor is disposed between the induction magnet ring assembly and the motor main body, so that the axial height of the motor can be reduced, and the motor can be easily assembled.
Example 2
This embodiment 2 provides a vehicle-mounted product having a motor with the structure described in the above embodiment 1, and the description thereof is omitted.
The in-vehicle product of the present embodiment is an electric product used on a vehicle. For example, the vehicle-mounted product may be a vehicle-mounted transmission, and specifically, may be a dual clutch transmission equipped with a DCT motor, for example. However, the present embodiment is not limited thereto, and may be other vehicle-mounted products.
With the in-vehicle product of the present embodiment, the circuit board on which the sensor is disposed between the induction magnet ring assembly and the motor main body, so that the axial height of the motor can be reduced, the motor can be easily assembled, and the defective rate can be reduced.
Example 3
Embodiment 3 provides a method for assembling a motor. The motor has the structure described in embodiment 1, and the description thereof is omitted. Fig. 10 is a schematic view of the assembling method of the present embodiment.
In this embodiment, as shown in fig. 10, the method includes:
Fig. 11 is another schematic view of the assembly method of the present embodiment.
In this embodiment, as shown in fig. 11, before the step 1002, the method may further include:
As shown in fig. 11, step 1005 may be performed after step 1001, but the embodiment is not limited thereto, and step 1005 may also be performed before step 1001.
The above step 1005 may be omitted.
Further, as shown in fig. 11, after the step 1005, the method may further include:
The above step 1006 may be omitted.
In the assembly method of the present embodiment, the circuit board on which the sensor is disposed between the induction magnet ring assembly and the motor main body, so that the axial height of the motor can be reduced, and the predetermined portion of the induction magnet ring assembly is axially opposed to the sensor element by rotating the induction magnet ring assembly, so that the relative positional relationship between the predetermined portion of the induction magnet ring assembly and the sensor element can be easily adjusted, thereby facilitating the assembly of the motor and reducing the defective fraction.
The embodiments of the invention have been described in detail above with reference to the accompanying drawings, which illustrate the manner in which the principles of the invention may be employed. It will be understood that the practice of the invention is not limited to the embodiments described above, but includes all changes, modifications and equivalents falling within the spirit and scope of the invention.
Claims (15)
1. A motor, the motor having:
a rotating shaft extending along a central axis and rotating around the central axis;
a motor main body disposed around the rotating shaft, the motor main body including a rotor that rotates around the center axis and a stator disposed radially opposite the rotor;
a casing which is disposed around the motor main body and has an opening at least at one axial side;
the induction magnetic ring assembly is fixed at one end of the rotating shaft and is provided with an induction magnetic ring; and
a circuit board provided with a sensor element,
it is characterized in that the preparation method is characterized in that,
the circuit board is arranged between the induction magnetic ring assembly and the motor main body;
the motor further has:
a bus bar assembly fixed to the cabinet and covering the opening,
the induction magnet ring assembly is located on one side of the bus bar assembly away from the motor body, and the circuit board is located between the induction magnet ring assembly and the bus bar assembly.
2. The motor of claim 1,
the predetermined portion of the induction magnet ring is axially opposed to the sensor element.
3. The motor of claim 1,
the induction magnet ring assembly further comprises:
a cover covering the induction magnet ring on a side of the induction magnet ring facing the sensor element;
a bracket supporting the induction magnet ring at the other side thereof.
4. The motor of claim 3,
a fixing portion extending in an axial direction is formed on an end surface of the one end of the rotating shaft, an outer diameter of the fixing portion is smaller than an outer diameter of the end surface of the one end of the rotating shaft,
the induction magnetic ring assembly is characterized in that one side, far away from the motor body, of the induction magnetic ring assembly is provided with a fixing ring, the fixing ring is sleeved on the periphery of the fixing part in an interference mode, and the end face, facing one side of the induction magnetic ring assembly, of the fixing ring and the end face, facing one end of the rotation shaft, of the rotation shaft clamp the induction magnetic ring assembly.
5. The motor of claim 3,
an insertion hole is formed on an end surface of the one end of the rotary shaft,
the motor further has:
an insertion pin having a base and an insertion portion inserted into the insertion hole, the insertion portion being fixed in the insertion hole by interference fit with the one end of the rotary shaft,
the end face of the base facing the induction magnetic ring assembly and the end face of the end of the rotating shaft clamp the induction magnetic ring assembly.
6. The motor of claim 3,
the bracket has:
a bracket main body extending in a radial direction and supporting the induction magnet ring; and
and a support wall formed in a cylindrical shape and extending from the bracket main body in an axial direction toward a side away from the induction magnet ring, wherein the one end of the rotating shaft is inserted into a space surrounded by the support wall, and the support wall is fixed to the one end of the rotating shaft.
7. The motor of claim 6,
a fixing portion extending in an axial direction is formed on an end surface of the one end of the rotary shaft, a shape of a cross section of the fixing portion is different from a shape of the end surface of the one end of the rotary shaft,
the support wall is in interference fit with the periphery of the fixing part.
8. The motor of claim 6,
an insertion hole is formed on an end surface of the one end of the rotary shaft,
the motor further has:
an insertion pin having an insertion portion inserted into the insertion hole,
the support wall is in interference fit with an outer peripheral surface of a portion of the rotary shaft into which the insertion pin is inserted.
9. The motor of claim 1,
a bus bar assembly fixing portion is provided on an outer circumference of the bus bar assembly,
a claw portion bent toward the bus bar assembly fixing portion is provided at one end of the casing close to the bus bar assembly, and the claw portion clamps the bus bar assembly fixing portion.
10. The motor of claim 1,
the bus bar assembly has:
a main body portion that covers the opening; and
a connecting port portion extending radially outward from the main body portion, a bus bar being provided in the connecting port portion, the bus bar being connected to an external power supply,
the stator has;
a plurality of teeth;
an insulator covering at least a portion of the teeth; and
a coil wound around the teeth with the insulator interposed therebetween,
the bus bar is connected to the lead-out wire of the coil by means of the insulating member.
11. The motor of claim 10,
in the axial direction, a distance between the circuit board and the motor main body is smaller than a distance between a surface of the connecting port portion on a side away from the motor main body and the motor main body.
12. A vehicle mounted product characterized in that it has a motor according to any one of claims 1 to 11.
13. A method of assembling a motor, the motor having: a rotating shaft extending along a central axis and rotating around the central axis; a motor main body disposed around the rotating shaft, the motor main body including a rotor that rotates around the center axis and a stator disposed radially opposite the rotor, the stator having a plurality of teeth and coils wound around the teeth; a casing which is disposed around the motor main body and has an opening at least at one axial side; a bus bar assembly fixed to the cabinet and covering the opening; the induction magnetic ring assembly is fixed at one end of the rotating shaft and is positioned on one side, far away from the motor body, of the bus bar assembly, and the induction magnetic ring assembly is provided with an induction magnetic ring; and a circuit board provided with a sensor element and disposed between the induction magnet ring assembly and the bus bar assembly,
characterized in that the method comprises:
disposing the circuit board at one end of the rotating shaft with respect to the motor main body;
rotatably disposing the induction magnet ring assembly relative to the circuit board at an end distal from the rotational axis of the motor body;
rotating the inductive magnetic ring assembly such that a predetermined portion of the inductive magnetic ring assembly is axially opposed to the sensor element; and
and fixing the induction magnetic ring assembly on the rotating shaft.
14. The method of assembling as claimed in claim 13, wherein a bus bar connected to an external power source is provided in the bus bar assembly, the bus bar being press-connected to a lead wire of the coil, wherein before the step of rotatably disposing the induction magnet ring assembly at the one end of the rotating shaft, the method further comprises:
and connecting the leading-out wire of the coil of the stator and the bus bar in a compression joint mode.
15. The assembling method according to claim 14, wherein after the step of crimping the lead-out wires of the coils of the stator and the bus bars, the method further comprises:
fixing the bus bar assembly to the cabinet in such a manner that the bus bar assembly covers the opening.
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|---|---|---|---|
| CN201910221766.5A CN111740547B8 (en) | 2019-03-22 | 2019-03-22 | Motor, vehicle-mounted product and motor assembling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221766.5A CN111740547B8 (en) | 2019-03-22 | 2019-03-22 | Motor, vehicle-mounted product and motor assembling method |
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| CN111740547A CN111740547A (en) | 2020-10-02 |
| CN111740547B true CN111740547B (en) | 2023-02-21 |
| CN111740547B8 CN111740547B8 (en) | 2023-06-09 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002171723A (en) * | 2000-11-28 | 2002-06-14 | Denso Corp | Lundell-type rotating electric machine having magnetic rotation angle detector |
| CN201774428U (en) * | 2010-06-02 | 2011-03-23 | 中山大洋电机制造有限公司 | Direct current brushless electric machine |
| CN107078591A (en) * | 2014-09-30 | 2017-08-18 | 日本电产株式会社 | Motor |
-
2019
- 2019-03-22 CN CN201910221766.5A patent/CN111740547B8/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002171723A (en) * | 2000-11-28 | 2002-06-14 | Denso Corp | Lundell-type rotating electric machine having magnetic rotation angle detector |
| CN201774428U (en) * | 2010-06-02 | 2011-03-23 | 中山大洋电机制造有限公司 | Direct current brushless electric machine |
| CN107078591A (en) * | 2014-09-30 | 2017-08-18 | 日本电产株式会社 | Motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111740547B8 (en) | 2023-06-09 |
| CN111740547A (en) | 2020-10-02 |
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Correction item: Inventor Correct: Wang Xin|Junfu Murakami|Wang Yu|Huang Ting False: Wang Yu|Huang Ting|Wang Xin|Junfu Murakami Number: 08-01 Page: The title page Volume: 39 Correction item: Inventor Correct: Wang Xin|Junfu Murakami|Wang Yu|Huang Ting False: Wang Yu|Huang Ting|Wang Xin|Junfu Murakami Number: 08-01 Volume: 39 |
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