CN215221964U - Rotary transformer for crankshaft direct-connected range-extended motor - Google Patents
Rotary transformer for crankshaft direct-connected range-extended motor Download PDFInfo
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- CN215221964U CN215221964U CN202121414576.4U CN202121414576U CN215221964U CN 215221964 U CN215221964 U CN 215221964U CN 202121414576 U CN202121414576 U CN 202121414576U CN 215221964 U CN215221964 U CN 215221964U
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Abstract
The utility model provides a bent axle directly links and increases journey motor resolver, belongs to and increases journey ware technical field, and it has solved split type and has increased easy emergence when journey motor assembly and install resolver stator and rotor on split type increases journey motor and scrape and bump the problem. The range-extended motor rotor is installed on an engine crankshaft, the range-extended motor stator is installed on an engine gantry, the rotary transformer stator and the rotary transformer rotor are respectively embedded in the range-extended motor stator and the range-extended motor rotor, the rotary transformer stator is installed in a shell of the range-extended motor stator, the rotary transformer rotor is installed on the range-extended motor rotor, and the length Z of a rotary transformer air gap between the rotary transformer stator and the rotary transformer rotor is smaller than or equal to 1 mm. The utility model discloses can effectively improve the bent axle and directly link the stator and rotor of increasing range motor resolver and scrape and bump the problem, shorten the assemble duration, when guaranteeing its work efficiency and detection precision, reduce the waste product loss.
Description
Technical Field
The utility model belongs to the technical field of increase journey ware, especially relate to a bent axle directly links and increases journey motor resolver.
Background
The rotary transformer stator is installed on the range motor stator shell, the rotary transformer rotor is installed on the range motor rotor, in the assembly process of the crankshaft direct-connected range motor, the rotary transformer stator and the rotary transformer rotor are assembled along with the assembly of the crankshaft direct-connected range motor stator and the rotary transformer rotor, the air gap between the rotary transformer stator and the rotary transformer rotor is usually 0.5-0.55 mm on the market, the air gap between the crankshaft direct-connected range motor stator and the rotary transformer rotor is 1mm larger than the air gap between the rotary transformer stator and the rotary transformer rotor, and therefore the rotary transformer is applied to the crankshaft direct-connected range motor and easily generates the problem of scraping and touching of the rotary transformer stator and the rotary transformer rotor.
SUMMERY OF THE UTILITY MODEL
Easy emergence is installed the resolver stator-rotor on split type range motor and is scraped the problem of bumping when solving split type range motor assembly that increases, the utility model provides a bent axle directly links range motor resolver.
The utility model adopts the technical proposal that: a crankshaft direct-connected range-extended motor rotary transformer comprises a range-extended motor stator, a range-extended motor rotor, a rotary transformer stator and a rotary transformer rotor; the range-extended motor rotor is installed on an engine crankshaft, the range-extended motor stator is installed on an engine gantry, the rotary transformer stator and the rotary transformer rotor are respectively embedded in the range-extended motor stator and the range-extended motor rotor, the rotary transformer stator is installed in a shell of the range-extended motor stator, the rotary transformer rotor is installed on the range-extended motor rotor, and the length Z of a rotary transformer air gap between the rotary transformer stator and the rotary transformer rotor is smaller than or equal to 1 mm.
The beneficial effects of the utility model reside in that:
the utility model discloses can effectively improve the bent axle and directly link the stator-rotor that increases the journey motor resolver and scrape and bump the problem, shorten the bent axle directly and link the assemble duration that increases the journey motor greatly, and through the air gap size between the adjustment resolver stator-rotor, when guaranteeing its work efficiency and detecting the precision, reduce the resolver waste product loss in the assembling process.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the air gap of the rotary transformer of the present invention;
FIG. 3 is a schematic view of the installation of the present invention;
fig. 4 is a schematic view of the connection between the extended range motor stator and the resolver stator of the present invention;
FIG. 5 is a schematic view of the connection between the extended range motor rotor and the resolver rotor of the present invention;
FIG. 6 is a schematic diagram of the operation of a rotary transformer;
wherein: 1. a range-extended motor stator; 2. a range-extended motor rotor; 3. a resolver stator; 4. a resolver air gap; 5. a rotary transformer rotor; 6. an extended range motor air gap; 7. an engine crankshaft; 8. an engine gantry; 9. and a positioning projection.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the present invention will be described in detail with reference to the accompanying drawings 1-6.
The utility model discloses increase resolver's air gap to 1mm, wherein resolver includes resolver stator 3 and resolver rotor 5, resolver stator 3 includes that the stator detects the tooth and the winding coil on the stator detects the tooth, resolver rotor 5 includes several salient poles of rotor, when resolver rotor 5 is rotatory, resolver stator 3 can detect the rotation angle of motor this moment according to the position of resolver rotor 5 salient pole, again through the motor rotation angle and the speed that resolver decoder discerned this moment.
The inner ring of the resolver rotor 5 is provided with a positioning boss 9.
Resolver stator 3 and resolver rotor 5 are embedded respectively in increasing journey motor stator 1 and increasing journey motor rotor 2, and resolver stator 3 installs in increasing journey motor stator 1's casing, resolver rotor 5 installs on increasing journey motor rotor 2, and it installs on engine crankshaft 7 to increase journey motor rotor 2 now during the assembly, will increase journey motor stator 1 again and install on engine gantry 8, and resolver can attach together along with the assembly process of bent axle direct connection increasing journey motor.
A rotary transformer for a crankshaft direct-connection range-extended motor is a transformer with unidirectional excitation and bidirectional output. When sinusoidal current flows through the primary excitation winding, the two ends of the secondary winding can induce electric potential with the same frequency according to the electromagnetic induction law, the magnitude of the electric potential is related to the relative electrical angle between the resolver stator 3 and the resolver rotor 5, the electric potential serves as a basis for angle measurement, and various angle measurement modes are generated.
Thereby change the magnetic resistance through changing radial air gap length, make stator coil response play and the corner be the voltage signal of sinusoidal relation, its 5 outlines of resolver rotor are mostly the corrugate salient pole formula, just so can make air gap length follow angle sinusoidal change, in order to compensate the system error that factors such as pivot system assembly and technology brought, design this kind of radial magnetic resistance resolver into multipolar structure, as shown in figure 2, resolver rotor 5 has six peach lamella, be six pairs of poles in the application of revolving, make the electric angle increase that each degree mechanical angle corresponds through increasing the pole logarithm, make every degree electric angle divided more meticulous, thereby improve the precision of angle detection.
Performance electromagnetic parameter analysis of rotary transformer
The signal winding output voltage calculation formula is as follows:
ES1-S3（t)＝k×E×sin(2π×f×t)×cos(P×θ)
ES2-S4(t)＝k×E×sin(2π×f×t)×sin(P×θ)
wherein: k: a transformation ratio; e, exciting voltage amplitude; f: excitation frequency; p: number of rotational pole pairs; θ: the mechanical angle of the rotor from the far point; t: time.
Two groups of signals which can be obtained through the change of the peach tops of the rotors are sin (P multiplied by theta) and cos (P multiplied by theta), the two groups of signals are detected through a Resolver Decoder (RDC), the position information of the rotor 5 of the rotary transformer is accurately solved, the resolver product is adjusted to be 1mm according to the air gap according to a calculation formula of the output voltage of a signal winding, the output voltage can be ensured to be unchanged through adjusting the electromagnetic parameters of the stator and the rotor of the rotary transformer, and the air gap between the stator and the rotor of the rotary transformer can be expanded to be optimal to be 1mm while the outer contour size, the working efficiency and the detection precision of the rotary transformer are ensured to be unchanged.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.
Claims (5)
1. The utility model provides a bent axle directly links range motor resolver which characterized in that: the device comprises a range-extended motor stator (1), a range-extended motor rotor (2), a rotary transformer stator (3) and a rotary transformer rotor (5); the range-extending motor rotor (2) is installed on an engine crankshaft (7), the range-extending motor stator (1) is installed on an engine gantry (8), the rotary transformer stator (3) and the rotary transformer rotor (5) are respectively embedded in the range-extending motor stator (1) and the range-extending motor rotor (2), the rotary transformer stator (3) is installed in a shell of the range-extending motor stator (1), the rotary transformer rotor (5) is installed on the range-extending motor rotor (2), and the length Z of a rotary transformer air gap (4) between the rotary transformer stator (3) and the rotary transformer rotor (5) is smaller than or equal to 1 mm.
2. The rotary transformer of claim 1, wherein: the length Z of the air gap (4) of the rotary transformer is 1 mm.
3. The rotary transformer of claim 2, wherein: the profile of the rotary transformer rotor (5) is of a corrugated salient pole type.
4. The rotary transformer of claim 3, wherein: the rotary transformer rotor (5) adopts a multi-stage structure.
5. The rotary transformer of claim 4, wherein: and the inner ring of the rotary transformer rotor (5) is provided with a positioning bulge (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121414576.4U CN215221964U (en) | 2021-06-24 | 2021-06-24 | Rotary transformer for crankshaft direct-connected range-extended motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121414576.4U CN215221964U (en) | 2021-06-24 | 2021-06-24 | Rotary transformer for crankshaft direct-connected range-extended motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215221964U true CN215221964U (en) | 2021-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121414576.4U Active CN215221964U (en) | 2021-06-24 | 2021-06-24 | Rotary transformer for crankshaft direct-connected range-extended motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215221964U (en) |
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2021
- 2021-06-24 CN CN202121414576.4U patent/CN215221964U/en active Active
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