CN218102898U - Fixed-angle mounting structure of eddy current sensor and motor - Google Patents
Fixed-angle mounting structure of eddy current sensor and motor Download PDFInfo
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- CN218102898U CN218102898U CN202222525501.4U CN202222525501U CN218102898U CN 218102898 U CN218102898 U CN 218102898U CN 202222525501 U CN202222525501 U CN 202222525501U CN 218102898 U CN218102898 U CN 218102898U
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- current sensor
- eddy current
- positioning block
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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
Abstract
The utility model provides a fixed angle installation structure of an eddy current sensor, which comprises a rotor and the eddy current sensor arranged on the rotor; the rotor is formed by overlapping a plurality of rotor laminations, lightening holes are formed in the rotor laminations, and long pins are inserted into the lightening holes of the rotor laminations on the uppermost layer; the positioning block is provided with a first through hole, and the first through hole is used for penetrating the long pin, so that the positioning block is fixed on the rotor lamination on the uppermost layer; the rotor of the eddy current sensor comprises a plurality of blades, when the rotor of the eddy current sensor is arranged on the rotor lamination, two ends of the positioning block are respectively abutted against two adjacent blades, and therefore the position between the rotor of the eddy current sensor and the rotor lamination is fixed.
Description
Technical Field
The utility model relates to the technical field of electric machines, especially, relate to an eddy current sensor's angle of fixation mounting structure and motor.
Background
The permanent magnet motor is used as the power output of a new energy automobile, and the performance of the permanent magnet motor directly influences the dynamic property, comfort and economy of the whole automobile. Because the permanent magnet driving motor of the new energy automobile has the characteristics of complex working environment, small volume, high reliability, high power density and the like, the permanent magnet driving motor has the advantages of high torque density, high power density, high efficiency, high reliability and the like through comparison and analysis, and is widely applied to the new energy automobile.
Along with the gradual replacement of Hall elements in the application of the motor by the rotary transformer, the adjustment and zero resetting of the rotary transformer are mainly performed manually, and the stator of the rotary transformer is gradually knocked by a hammer and a corresponding tool by means of the hand feeling of an operator, so that the process is time-consuming and labor-consuming, and the adjustment precision is difficult to ensure; or the rotary transformer rotor is held by the hand grip to be pressed down, and the key groove is used for positioning; or calibrating the zero deflection angle through offline test; or rotating the stator for zeroing.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect, the utility model aims to provide a can fix a position eddy current sensor's of position between eddy current sensor and the rotor lamination angle fixed mounting structure and motor.
The utility model discloses a fixed angle installation structure of an eddy current sensor, which comprises a rotor and the eddy current sensor arranged on the rotor; the rotor is formed by overlapping a plurality of rotor laminations, lightening holes are formed in the rotor laminations, and long pins are inserted into the lightening holes of the rotor laminations on the uppermost layer; the positioning block is provided with a first through hole, and the first through hole is used for penetrating the long pin, so that the positioning block is fixed on the uppermost layer of the rotor lamination; the rotor of the eddy current sensor comprises a plurality of blades, when the rotor of the eddy current sensor is arranged on the rotor lamination, two ends of the positioning block are respectively abutted against two adjacent blades, and therefore the position between the rotor of the eddy current sensor and the rotor lamination is fixed.
Preferably, the number of the lightening holes is greater than or equal to the number of the blades of the rotor of the eddy current sensor; the plurality of lightening holes are circumferentially arranged on the rotor lamination.
Preferably, the positioning device further comprises a balance disc, and the balance disc is arranged between the rotor lamination and the positioning block; a second through hole is formed in the balance disc, and the long pin penetrates through the second through hole; the balance disc comprises a base plate and a vertical ring arranged on the base plate, and the vertical ring is arranged on the edge of the base plate.
Preferably, the rotor of the eddy current sensor comprises a central rotating disc, and the blades are circumferentially arranged on the rotating disc; still include the clamping ring, the clamping ring is located the balance disk with between the carousel.
Preferably, the inner side of the positioning block is abutted against the outer edge of the pressing ring, and the outer side of the positioning block is abutted against the inner edge of the vertical ring of the balance disc.
Preferably, a fan-shaped accommodating space is formed between two adjacent blades of the rotor of the eddy current sensor and the vertical ring; the positioning block is also in a fan shape, the inner edge of the positioning block is matched with the outer edge of the rotary disc of the rotor of the eddy current sensor, and the outer edge of the positioning block is matched with the inner edge of the vertical ring of the balance disc, so that the positioning block is completely matched with the accommodating space.
Preferably, the number of the positioning blocks is two, and the two positioning blocks are symmetrically arranged relative to the rotor of the eddy current sensor.
The utility model also discloses a motor, decide angle mounting structure including foretell eddy current sensor.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:
1. the utility model discloses a locate in the lightening hole the long round pin and the locating piece, directly establish the relative position relation between rotor lamination and the eddy current sensor rotor, avoided every assembly of sample stage to correspond a software, lead to controller and motor assembly can't realize exchanging, still avoided the production line to adjust the problem of zero offset one by one to production line production efficiency has been promoted;
2. the utility model does not need to be positioned by key slot cutting or line marking on the rotor shaft, thereby reducing the processing cost of the shaft and being applied to special processes such as elastic shafts and the like; the shaft is not required to be grooved, the strength of the shaft is improved, the processing difficulty of the shaft is reduced, and the production efficiency is improved;
3. since the balance disks are positioned together, positioning of the rotor oil passage via the balance disks can also be achieved.
Drawings
Fig. 1 is a fixed-angle mounting structure of an eddy current sensor provided by the present invention;
fig. 2 is a schematic structural diagram of the rotor showing the lightening holes provided by the invention;
fig. 3 is a schematic structural view of the rotor provided by the present invention, in which the long pin is inserted into the lightening hole;
fig. 4 is a schematic structural diagram of the rotor provided with the balance disc according to the present invention;
fig. 5 is a schematic structural view of the rotor provided with the compression ring according to the present invention;
fig. 6 is a schematic structural view of the rotor provided with the positioning block according to the present invention;
fig. 7 is a schematic structural diagram of a rotor provided with the eddy current sensor according to the present invention;
fig. 8 is a schematic structural view of the rotor with the long pin and the positioning block removed according to the present invention.
Wherein: 1-rotor lamination, 2-lightening holes, 3-long pins, 4-balance disc, 5-compression ring, 6-positioning block, 7-rotor of eddy current sensor, 701-blade, 702-rotary disc and 8-sealing piece.
Detailed Description
The advantages of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if," as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination," depending on the context.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the following description, suffixes such as "module", "part", or "unit" used to indicate elements are used only for the convenience of description of the present invention, and have no specific meaning in itself. Thus, "module" and "component" may be used in a mixture.
Referring to the accompanying drawings 1-7, the utility model discloses a fixed angle mounting structure of eddy current sensor, including the rotor with locate the eddy current sensor on the rotor, particularly, the rotor includes rotor lamination 1 and rotor shaft, with predetermine after the oblique polar angle stack, with fixed angle installation on the rotor shaft between a plurality of rotor laminations 1. The eddy current sensor is arranged on the rotor, in particular on the rotor shaft, in a locating relationship with the rotor lamination 1. The utility model discloses then utilize the current structure (lightening hole 2, balance disc 4, clamping ring 5) and the auxiliary fixtures (long round pin 3 and locating piece 6) of rotor, realize the location between eddy current sensor's rotor 7 and the rotor lamination 1.
Specifically, lightening holes 2 are formed in the rotor laminations 1, and long pins 3 are inserted into the lightening holes 2 of the uppermost rotor laminations 1. To ensure its stability, the diameter of the long pin 3 should be substantially identical to that of the lightening hole 2.
The positioning block 6 is provided with a first through hole, and when the positioning block 6 is arranged on the rotor lamination 1, the first through hole is used for penetrating the long pin 3, so that the positioning block 6 is fixed on the uppermost rotor lamination 1.
When the rotor 7 of the eddy current sensor comprises a plurality of blades 701, and when the rotor 7 of the eddy current sensor is mounted on the rotor lamination 1, two ends of the positioning block 6 respectively abut against two adjacent blades 701, so that the position between the two blades 701 of the rotor 7 of the eddy current sensor and the rotor lamination 1 is defined, and the position between the eddy current sensor and the rotor lamination 1 is defined.
Therefore, the present invention defines the position of the long pin 3 by the position of the lightening hole 2, thereby defining the position of the positioning block 6, and finally defining the position of the rotor 7 of the eddy current sensor by matching with the structural shape of the positioning block 6.
The utility model discloses use in permanent magnet synchronous machine, replaced prior art's marking off or keyway mode, avoided because between the different rotor assemblies, because rotor lamination 1 and eddy current sensor's 7 relative position relations of rotor are inconsistent, the uneven problem of zero deviation that leads to. The shaft does not need to be machined, the production efficiency is higher, and the cost is lower.
Preferably, the number of the lightening holes 2 is greater than or equal to the number of the blades 701 of the rotor 7 of the eddy current sensor, and a plurality of lightening holes 2 are circumferentially arranged on the rotor lamination 1 to ensure that every two blades 701 can be positioned through the positioning block 6. In the preferred embodiment provided by the present invention, the number of lightening holes 2 is equal to the number of blades 701 of the rotor 7 of the eddy current sensor.
Be equipped with balance disk 4 outside the rotor (on the rotor lamination 1 of the superiors promptly) the utility model discloses in, balance disk 4 is located between rotor lamination 1 and the locating piece 6, promptly before installation locating piece 6, installs balance disk 4 earlier. Adaptively, the balance disc 4 is provided with a second through hole, and the long pin 3 penetrates through the second through hole, so that the balance disc 4 is fixed on the rotor lamination 1.
The balance disc 4 generally comprises a bottom disc and a standing ring arranged on the bottom disc, wherein the standing ring is arranged at the edge of the bottom disc, namely the diameter of the standing ring is equal to that of the bottom disc. More preferably, the diameter of the standing ring is equal to the diameter of the base plate and the diameter of the rotor lamination 1.
The balance disc 4 is also provided with a pressing ring 5, and the pressing ring 5 is used for fixing and locking the balance disc 4. Specifically, the rotor 7 of the eddy current sensor includes a central rotating disk 702 (electromagnetic induction portion) and a plurality of blades 701 on the rotating disk 702, and the blades 701 are circumferentially disposed on the rotating disk 702. When the eddy current sensor is mounted, the pressure ring 5 is disposed between the balance disk 4 and the rotating disk 702 including the center of the rotor 7 of the eddy current sensor.
Preferably, the inner side of the positioning block 6 is abutted against the outer edge of the pressing ring 5, and the outer side of the positioning block 6 is abutted against the inner edge of the vertical ring of the balance disc 4, so that the positioning block 6 is more stably fixed.
Furthermore, in the preferred embodiment of the present invention, a fan-shaped receiving space is formed between two adjacent blades 701 of the rotor 7 of the eddy current sensor and the vertical ring, and the positioning block 6 is also provided in a fan shape. When the positioning device is installed, the fan-shaped inner edge of the positioning block 6 is matched with the outer edge of the rotating disc 702 of the rotor 7 of the eddy current sensor, and the fan-shaped outer edge of the positioning block 6 is matched with the inner edge of the vertical ring of the balance disc 4, so that the fan-shaped positioning block 6 is completely accommodated in the fan-shaped accommodating space, and the positioning block 6 is completely matched with the accommodating space.
Preferably, in the preferred embodiment provided by the present invention, the number of the positioning blocks 6 is two, and the two positioning blocks 6 are symmetrically arranged relative to the rotor 7 of the eddy current sensor, so as to ensure a more stable positioning effect.
The utility model also discloses a motor, decide angle mounting structure including foretell eddy current sensor. The motor mounting method comprises the following steps:
1) Referring to fig. 2-3, a long pin 3 is inserted by using a lightening hole 2 of the last stack of rotor laminations 1 as a positioning reference;
2) Referring to fig. 4, the balance disc 4 is positioned and press-fitted by the long pin 3;
3) Referring to fig. 5, a press ring 5 is pressed into the balance disk 4 to lock the balance disk 4;
4) Referring to fig. 6, two positioning blocks 6 are inserted into the long pin 3, so that the outer edges of the positioning blocks 6 are matched with the inner edge of the vertical ring of the balance disc 4, and the inner edges are matched with the outer edge of the pressing ring 5, thereby completing the positioning of the positioning blocks 6;
5) Referring to fig. 7, the inner edge of the positioning block 6 is matched with a turntable 702 (sensing edge) of the rotor 7 of the eddy current sensor, so as to press-fit and position the eddy current sensor;
6) Referring to fig. 1, the rotor 7 of the eddy current sensor is positioned by pressing a circular pressing member 8 into the rotor 7 of the eddy current sensor.
It should be noted that the long pin 3 and the positioning block 6 of the present embodiment should be understood as an installation tool of the eddy current sensor, and after the installation of the eddy current sensor is completed, the long pin 3 and the positioning block 6 can be taken out of the motor rotor, so as to form the structure of the motor rotor shown in fig. 8.
It should be noted that the embodiments of the present invention have better practicability and are not intended to limit the present invention in any way, and any person skilled in the art may change or modify the technical contents disclosed above to equivalent effective embodiments, but all the modifications or equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (8)
1. A fixed-angle mounting structure of an eddy current sensor is characterized by comprising a rotor and the eddy current sensor arranged on the rotor;
the rotor is formed by overlapping a plurality of rotor laminations, lightening holes are formed in the rotor laminations, and long pins are inserted into the lightening holes of the rotor laminations on the uppermost layer;
the positioning block is provided with a first through hole, and the first through hole is used for penetrating the long pin, so that the positioning block is fixed on the rotor lamination on the uppermost layer;
the rotor of the eddy current sensor comprises a plurality of blades, when the rotor of the eddy current sensor is arranged on the rotor lamination, two ends of the positioning block are respectively abutted against two adjacent blades, and therefore the position between the rotor of the eddy current sensor and the rotor lamination is fixed.
2. The fixed-angle mounting structure of an eddy current sensor according to claim 1, wherein the number of lightening holes is equal to or greater than the number of blades of a rotor of the eddy current sensor; the plurality of lightening holes are circumferentially arranged on the rotor lamination.
3. The fixed-angle mounting structure of an eddy current sensor according to claim 1, further comprising a balance disc provided between the rotor lamination and the positioning block;
a second through hole is formed in the balance disc, and the long pin penetrates through the second through hole;
the balance disc comprises a base plate and a vertical ring arranged on the base plate, and the vertical ring is arranged on the edge of the base plate.
4. An angular mounting structure of an eddy current sensor according to claim 3, wherein the rotor of the eddy current sensor comprises a central rotating disk, and the blades are circumferentially arranged on the rotating disk;
still include the clamping ring, the clamping ring is located the balance disk with between the carousel.
5. The eddy current sensor angular mounting structure of claim 4, wherein an inner side of the positioning block abuts against an outer edge of the pressing ring, and an outer side of the positioning block abuts against an inner edge of the standing ring of the balance disk.
6. The fixed-angle mounting structure of an eddy current sensor according to claim 5, wherein a fan-shaped accommodating space is formed between two adjacent blades of the rotor of the eddy current sensor and the vertical ring;
the positioning block is also in a fan shape, the inner edge of the positioning block is matched with the outer edge of the rotary disc of the rotor of the eddy current sensor, and the outer edge of the positioning block is matched with the inner edge of the vertical ring of the balance disc, so that the positioning block is completely matched with the accommodating space.
7. The fixed-angle mounting structure of an eddy current sensor according to claim 6, wherein the number of the positioning blocks is two, and the two positioning blocks are symmetrically arranged with respect to a rotor of the eddy current sensor.
8. An electrical machine comprising the fixed angle mounting structure of an eddy current sensor according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222525501.4U CN218102898U (en) | 2022-09-23 | 2022-09-23 | Fixed-angle mounting structure of eddy current sensor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222525501.4U CN218102898U (en) | 2022-09-23 | 2022-09-23 | Fixed-angle mounting structure of eddy current sensor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218102898U true CN218102898U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222525501.4U Active CN218102898U (en) | 2022-09-23 | 2022-09-23 | Fixed-angle mounting structure of eddy current sensor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218102898U (en) |
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- 2022-09-23 CN CN202222525501.4U patent/CN218102898U/en active Active
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