阅读说明：本技术 新能源汽车电机结构及新能源汽车电机装配方法 (New energy automobile motor structure and new energy automobile motor assembling method ) 是由 三浦一夫 张境方 于 2021-10-14 设计创作，主要内容包括：本发明提供一种应用于新能源汽车技术领域的新能源汽车电机装配方法,所述的新能源汽车电机装配方法的装配步骤为：测量定子铁芯(3)样品外径尺寸φDo；测量测量定子铁芯(3)样品热装到电机框架(1)样品后的外径尺寸φDp；计算差值尺寸φDd；4)将电机框架(1)标准尺寸设置为等于电机支架(2)的卡接部(4)的卡接内径尺寸φDi；量产电机框架(1)时,将电机框架(1)外径实际尺寸设定为电机框架(1)标准尺寸-φDd,完成电机框架(1)量产,本发明的新能源汽车电机装配方法,在电机装配时当定子铁芯热装到电机框架的状态下,使得电机框架外径接近于标准尺寸,可以和电机支架实现理想配合,提高装配精度,提高电机品质。(The invention provides a new energy automobile motor assembling method applied to the technical field of new energy automobiles, which comprises the following assembling steps: measuring the outer diameter size phi Do of a sample of the stator core (3); measuring and measuring the external diameter dimension phi Dp of a stator core (3) sample after the sample is hot-mounted on a motor frame (1); calculating a difference size phi Dd; 4) setting the standard size of the motor frame (1) to be equal to the clamping inner diameter size phi Di of the clamping part (4) of the motor bracket (2); when the motor frame (1) is produced in a mass mode, the actual size of the outer diameter of the motor frame (1) is set to be the standard size-phi Dd of the motor frame (1), and mass production of the motor frame (1) is completed.)

1. A new energy automobile motor assembling method is characterized in that: the assembling method of the new energy automobile motor comprises the following assembling steps: 1) measuring the outer diameter size phi Do of the sample of the motor frame (1) before the stator core (3) sample is hot-assembled; 2) hot loading a stator core (3) sample to a motor frame (1) sample, and measuring the outer diameter dimension phi Dp of the motor frame (1) sample after the stator core (3) sample is hot loaded to the motor frame (1) sample; 3) calculating the difference size phi Dd between the outer diameter size phi Do of the motor frame (1) sample before the stator core (3) sample is hot-assembled and the outer diameter size phi Dp of the motor frame (1) sample after the stator core (3) sample is hot-assembled; 4) setting the standard size of the motor frame (1) to be equal to the clamping inner diameter size phi Di of the clamping part (4) of the motor bracket (2); 5) when the motor frame (1) is produced in mass, the actual outer diameter dimension of the motor frame (1) is set to be the standard dimension-phi Dd of the motor frame (1), and the mass production of the motor frame (1) is completed.

2. The new energy automobile motor assembling method according to claim 1, characterized in that: according to the new energy automobile motor assembling method, a motor frame (1) sample is set to be in a structure with the same shape and size as those of a motor frame (1) for mass production.

3. The new energy automobile motor assembling method according to claim 1 or 2, characterized in that: according to the new energy automobile motor assembling method, the motor support (2) is designed into a structure with the same shape and size as those of the motor support (2) for mass production.

4. The new energy automobile motor assembling method according to claim 3, characterized in that: according to the new energy automobile motor assembling method, the sample of the stator core (3) is set to be in the same structure with the shape and size of the stator core (3) for mass production.

5. The utility model provides a new energy automobile motor structure which characterized in that: the new energy automobile motor structure comprises a motor frame (1), a motor support (2) and a stator core (3), wherein the motor core (3) is assembled in the motor frame (1), the motor support (2) is provided with a bent clamping part (4), the clamping part (4) is of an annular structure, the motor support (2) is clamped on the outer surface of the motor frame (1) through the clamping part (4), the outer diameter phi Do of a sample of the motor frame (1), the clamping inner diameter phi Di of the clamping part (4) of the motor support (2), the difference size of the outer diameter phi Do of the motor frame (1) before the stator core (3) is hot-assembled and the outer diameter phi Dp of the motor frame (1) after the stator core (3) is hot-assembled is phi Dd, and the clamping inner diameter phi Di of the clamping part (4) of the motor support (2) is set to be equal to the standard size of the motor frame (1), the actual size of the outer diameter of the motor frame (1) is set as the standard size-phi Dd of the motor frame (1).

6. The new energy automobile motor structure of claim 5, characterized in that: the stator core (3) of the new energy automobile motor structure is clamped in the motor frame (1).

7. The new energy automobile motor structure according to claim 5 or 6, characterized in that: the clamping part (4) of the motor bracket (2) is clamped on the matching part (5) of the motor frame.

Technical Field

The invention belongs to the technical field of new energy automobiles, and particularly relates to a motor structure of a new energy automobile and an assembling method of the motor of the new energy automobile.

Background

In a new energy automobile motor (vehicle-mounted motor, motor), the state of a matching part between a motor frame (motor housing, frame) and a motor support shaft bracket) is very important for ensuring the quality of the motor. In the motor structure, a motor frame assembling portion is provided at an outer side of the motor frame to achieve connection with the motor bracket. During assembly, the frame outer diameter φ Do and the stent inner diameter φ Di of the matching part should ideally be equal to φ Di, but actually, due to machining difference, the frame outer diameter φ Do and the stent inner diameter φ Di always have size difference. If φ Do < φ Di, the installation is difficult and the two parts may not be completely closed. In this case, the inside and outside air of the motor cannot be kept sealed, and the function of the motor deteriorates. On the contrary, if φ Do > φ Di, a gap is generated in a radial direction, accuracy is degraded after assembly, and vibration and noise may be generated during operation. Therefore, as described above, it is important to make the dimensions of the motor frame and the motor bracket engagement portion as close as possible to the relationship of Φ Do — Φ Di. In the prior art, after the motor frame is manufactured by the motor, the stator core needs to be hot-assembled in the motor frame, and then the motor bracket needs to be assembled. In the stator core hot-fitting process, the outer diameter phi Do of the motor frame expands due to the hot-fitting of the stator core, and the relation between the outer diameter phi Do and the inner diameter of the motor support is always kept in a state that phi Do is less than phi Di. Therefore, in the related art, when the motor frame and the motor bracket are assembled, the motor frame and the motor bracket cannot be completely closed all the time, and a small gap is formed. Such a structure can not effectively meet the production requirements of the motor.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the assembling method of the motor of the new energy automobile is simple in steps, and when the motor is assembled, the outer diameter of the motor frame is close to the standard size in the state that the stator core is hot-assembled to the motor frame, so that ideal matching with the motor support can be achieved, the assembling difficulty is reduced, the assembling precision is improved, and the quality of the motor is effectively improved finally.

To solve the technical problems, the invention adopts the technical scheme that:

the invention relates to a new energy automobile motor assembling method, which comprises the following assembling steps: 1) measuring the outer diameter size phi Do of a motor frame sample before the stator core sample is hot-assembled; 2) hot-mounting a stator core sample on a motor frame sample, and measuring the outer diameter dimension phi Dp of the motor frame sample after the stator core 3 sample is hot-mounted on the motor frame sample; 3) calculating the difference size phi Dd between the outer diameter size phi Do of the motor frame sample before the stator core sample is hot-assembled and the outer diameter size phi Dp of the motor frame sample after the stator core sample is hot-assembled; 4) setting the standard size of the motor frame to be equal to the clamping inner diameter size phi Di of the clamping part of the motor bracket; 5) when the motor frame is produced in mass, the actual outer diameter dimension of the motor frame 1 is set as the standard dimension-phi Dd of the motor frame, and the mass production of the motor frame is completed.

The motor frame sample of the new energy automobile motor assembling method is set to be in a structure with the same shape and size as the motor frame of mass production.

According to the new energy automobile motor assembling method, the motor support sample is set to be in the same structure with the motor support in the shape and size of mass production.

The stator core sample of the new energy automobile motor assembling method is set to be in the same structure with the stator core of mass production in shape and size.

The invention also relates to a new energy automobile motor structure which is simple in structure, and when the motor is assembled, the outer diameter of the motor frame is close to the standard size under the state that the stator core is hot-assembled on the motor frame, so that the motor frame can be ideally matched with the motor bracket, the assembly difficulty is reduced, the assembly precision is improved, and the motor quality is finally and effectively improved.

The motor structure of the new energy automobile comprises a motor frame, a motor support and a stator core, wherein the motor core is assembled in the motor frame, the motor support is provided with a bent clamping portion, the clamping portion is of an annular structure, the motor support is clamped on the outer surface of the motor frame through the clamping portion, the outer diameter phi Do of a motor frame sample, the clamping inner diameter phi Di of the clamping portion of the motor support, the difference size of the outer diameter phi Do of the motor frame before stator core hot-charging and the outer diameter phi Dp of the motor frame after the stator core hot-charging is phi Dd, the clamping inner diameter phi Di of the clamping portion of the motor support is set to be equal to the standard size of the motor frame, and the actual outer diameter of the motor frame is set to be the standard size-phi Dd of the motor frame.

And a stator core of the new energy automobile motor structure is clamped in the motor frame.

The clamping part of the motor bracket is clamped at the matching part of the motor frame.

By adopting the technical scheme of the invention, the following beneficial effects can be obtained:

according to the new energy automobile motor structure, in the motor production, when the motor frame is matched with the motor support, the expansion size phi Dd (difference size phi Dd) of the motor frame is considered in advance, and the phi Dd can be effectively measured and obtained through the method, and the outer diameter of the frame is set to be the standard size-phi Dd of the motor frame. Thus, under the state that the stator core is hot-assembled on the motor frame, the motor frame expands, the expanded outer diameter of the motor frame is changed into the standard size (ideal size) of the motor frame, so that the ideal matching clamping of the inner diameters of the clamping part of the motor frame and the motor bracket can be always realized, the problem that phi Do is less than phi Di and the problem that phi Do is more than phi Di can not be caused, but the state that the phi Do is as close as possible to the phi Di can be realized, therefore, the bad result caused by the problem that Do is less than phi Di and the bad result caused by the problem that phi Do is more than phi Di can not be caused naturally, the sealing of the inside and outside air of the motor can be ensured, the function of the motor is optimized, meanwhile, the gap can not be generated in the radial direction after the motor frame and the motor bracket are assembled, therefore, the precision after the assembly is effectively improved, the vibration and the noise are effectively reduced in the operation, the quality of the motor is comprehensively improved. In the invention, because the phi Dd is a determined value obtained according to actual measurement, rather than an estimated value or an assumed value, the size precision of the motor frame and the motor bracket in mass production can be effectively improved, thereby effectively ensuring the stable matching relationship between the motor frame and the motor bracket. According to the new energy automobile motor structure, when the motor is assembled, the outer diameter of the motor frame is close to the standard size in the state that the stator iron core is hot-assembled to the motor frame, so that ideal matching with the motor support can be realized, the assembly difficulty is reduced, the assembly precision is improved, and the motor quality is effectively improved finally.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

fig. 1 is a schematic structural diagram of a motor structure of a new energy automobile according to the invention;

fig. 2 is a schematic view of a matching structure of a stator core and a motor frame of the new energy automobile motor structure according to the invention;

fig. 3 is a schematic structural diagram of a motor bracket of the motor structure of the new energy automobile according to the invention;

in the drawings, the reference numbers are respectively: 1. a motor frame; 2. a motor bracket; 3. a stator core; 4. a clamping part; 5. a motor frame mating portion.

Detailed Description

The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:

as shown in the attached drawings 1-3, the invention relates to a new energy automobile motor assembling method, which comprises the following assembling steps: 1) measuring the outer diameter size phi Do of the sample of the motor frame 1 before the stator core 3 sample is hot-assembled; 2) hot-mounting a stator core 3 sample on a motor frame 1 sample, and measuring the outer diameter dimension phi Dp of the motor frame 1 sample after the stator core 3 sample is hot-mounted on the motor frame 1 sample; 3) calculating the difference size phi Dd between the outer diameter size phi Do of the motor frame 1 sample before the stator core 3 sample is hot-assembled and the outer diameter size phi Dp of the motor frame 1 sample after the stator core 3 sample is hot-assembled; 4) setting the standard size of the motor frame 1 to be equal to the clamping inner diameter size phi Di of the clamping part 4 of the motor bracket 2; 5) when the motor frame 1 is produced in mass, the actual size of the outer diameter of the motor frame 1 is set to be the standard size-phi Dd of the motor frame 1, and the mass production of the motor frame 1 is completed. The structure considers the expansion size phi Dd (difference size phi Dd) of the motor frame in advance when the motor frame is matched with the motor bracket in the motor production, and the phi Dd can be effectively measured and obtained by the method, and the outer diameter of the frame is set to be the standard size-phi Dd of the motor frame 1. Thus, under the state that the stator core is hot-assembled on the motor frame, the motor frame expands, the expanded outer diameter of the motor frame is changed into the standard size (ideal size) of the motor frame 1, the ideal matching clamping of the inner diameters of the clamping part of the motor frame and the motor bracket can be always realized, the problem that phi Do is less than phi Di and the problem that phi Do is more than phi Di can not be caused, but the state that the phi Do is as close as possible to the phi Di can be realized, thus, the bad result caused by the problem that Do is less than phi Di and the bad result caused by the problem that phi Do is more than phi Di can not be caused naturally, the sealing of the internal air and the external air of the motor can be ensured, the function of the motor is optimized, meanwhile, the gap can not be generated in the radial direction after the motor frame and the motor bracket are assembled, the precision after the assembly is effectively improved, and the vibration and the noise are effectively reduced in the operation, the quality of the motor is comprehensively improved. In the invention, because the phi Dd is a determined value obtained according to actual measurement, and is not an estimated value or an assumed value, the size precision of the motor frame and the motor bracket in mass production can be effectively improved, thereby effectively ensuring the stable matching relationship between the motor frame and the motor bracket. According to the new energy automobile motor structure, when the motor is assembled, the outer diameter of the motor frame is close to the standard size in the state that the stator iron core is hot-assembled on the motor frame, ideal matching with the motor support can be achieved, assembly difficulty is reduced, assembly precision is improved, and motor quality is effectively improved.

The motor frame 1 sample of the new energy automobile motor assembling method is set to be in a structure with the same shape and size as the motor frame 1 in mass production. The motor support 2 sample of the new energy automobile motor assembling method is set to be in the same structure with the motor support 2 in volume production in shape and size. The stator core 3 sample of the new energy automobile motor assembling method is set to be in the same structure with the stator core 3 in volume production in shape and size. The structure, the motor frame, the motor bracket and the stator core are manufactured according to the size of mass production. Thus, the precision of the expansion size phi Dd (difference size phi Dd) obtained by measurement is ensured, and the outer diameter of the expanded motor frame is close to the ideal size when the motor frame and the motor bracket are assembled in mass production.

The invention also relates to a new energy automobile motor structure, which comprises a motor frame 1 and a motor bracket 2, the motor frame comprises a stator iron core 3, the motor iron core 3 is assembled in a motor frame 1, a bent clamping portion 4 is arranged on a motor support 2, the clamping portion 4 is of an annular structure, the motor support 2 is clamped on the outer surface of the motor frame 1 through the clamping portion 4, the outer diameter phi Do of a sample of the motor frame 1, the clamping inner diameter phi Di of the clamping portion 4 of the motor support 2, the difference size of the outer diameter phi Do of the motor frame 1 before the stator iron core 3 is hot-assembled and the outer diameter phi Dp of the motor frame 1 after the stator iron core 3 is hot-assembled is phi Dd, the clamping inner diameter phi Di of the clamping portion 4 of the motor support 2 is set to be equal to the structure of the standard size of the motor frame 1, and the actual outer diameter of the motor frame 1 is set to be the standard size phi Dd of the motor frame 1.

And a stator core 3 of the new energy automobile motor structure is clamped in the motor frame 1.

The clamping part 4 of the motor bracket 2 is clamped at the matching part 5 of the motor frame.

According to the new energy automobile motor structure, in the motor production, when the motor frame is matched with the motor support, the expansion size phi Dd (difference size phi Dd) of the motor frame is considered in advance, and the phi Dd can be effectively measured and obtained through the method, and the outer diameter of the frame is set to be the standard size-phi Dd of the motor frame. Thus, under the state that the stator core is hot-assembled on the motor frame, the motor frame expands, the expanded outer diameter of the motor frame is changed into the standard size (ideal size) of the motor frame, so that the ideal matching clamping of the inner diameters of the clamping part of the motor frame and the motor bracket can be always realized, the problem that phi Do is less than phi Di and the problem that phi Do is more than phi Di can not be caused, but the state that the phi Do is as close as possible to the phi Di can be realized, therefore, the bad result caused by the problem that Do is less than phi Di and the bad result caused by the problem that phi Do is more than phi Di can not be caused naturally, the sealing of the inside and outside air of the motor can be ensured, the function of the motor is optimized, meanwhile, the gap can not be generated in the radial direction after the motor frame and the motor bracket are assembled, therefore, the precision after the assembly is effectively improved, the vibration and the noise are effectively reduced in the operation, the quality of the motor is comprehensively improved. In the invention, because the phi Dd is a determined value obtained according to actual measurement, rather than an estimated value or an assumed value, the size precision of the motor frame and the motor bracket in mass production can be effectively improved, thereby effectively ensuring the stable matching relationship between the motor frame and the motor bracket. According to the new energy automobile motor structure, when the motor is assembled, the outer diameter of the motor frame is close to the standard size in the state that the stator iron core is hot-assembled to the motor frame, so that ideal matching with the motor support can be realized, the assembly difficulty is reduced, the assembly precision is improved, and the motor quality is effectively improved finally.

The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.