Motor mounting structure and motor

Abstract

The utility model relates to the technical field of motor products, and particularly discloses a motor mounting structure and a motor, the motor mounting structure comprises an outer rotor assembly and a fan blade assembly, the outer rotor assembly comprises an outer rotor shell, a plurality of grooves are formed in the inner side wall of the outer rotor shell, a first glue retaining groove is formed in the side wall of each groove, and a plurality of second glue retaining grooves are formed in the side wall of each first glue retaining groove; a plurality of second glue reserving grooves are formed in the outer side wall of the outer rotor shell; the glue is filled in the first glue retaining groove, and the side surface of one side of the magnetic steel is bonded and fixed in the first glue retaining groove through the glue, so that the installation stability of the magnetic steel on the inner side wall of the outer rotor shell is improved; the second glue retaining groove is filled with glue, so that the outer wall of the outer rotor shell is bonded and fixed on the inner wall of the shell in the fan blade assembly through the glue, the outer rotor shell and the fan blade assembly form an integral structure, the magnetic steel and the rotor shell can be further prevented from falling off in the high-speed rotation process of the motor, and the service life of the motor is prolonged. The overall firmness of the motor is enhanced and the service life of the motor is prolonged.

Description

Technical Field

[0001] This application relates to the field of motor product technology, specifically to a motor mounting structure and a motor. Background Technology

[0002] External rotor motors are a type of motor product with a simple structure, small axial dimension, and high power-to-weight ratio. They can control torque over a wide speed range and have a fast response speed. Furthermore, because they do not have a speed reducer, they are highly efficient.

[0003] Most commercially available external rotor motors have a glue-retaining groove between the magnet and the external rotor housing. By filling the glue-retaining groove with glue, the adhesion of the magnet to the external rotor housing is strengthened, preventing the magnet from falling off.

[0004] However, since the outer rotor housing and the fan blade assembly are independent of each other, the overall robustness of the motor is poor. In particular, there is still a risk that the magnets and the outer rotor housing will fall off during high-speed rotation of the outer rotor. Utility Model Content

[0005] The purpose of at least one specific embodiment of this utility model is to overcome the defects of the prior art and provide a motor mounting structure and a motor.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A motor mounting structure, comprising:

[0008] The outer rotor assembly includes an outer rotor housing, and the inner sidewall of the outer rotor housing is formed with multiple grooves for mounting magnets.

[0009] Wind turbine blade assembly;

[0010] Each groove has a first adhesive groove formed on its sidewall, which runs through the outer rotor housing axially.

[0011] Multiple second adhesive grooves are formed on the outer side wall of the outer rotor housing, which are arranged at intervals along the circumference of the outer rotor housing.

[0012] Furthermore, the groove and the second adhesive groove are offset and set on the inner and outer side walls of the outer rotor housing.

[0013] Furthermore, the length of the opening of the first adhesive retention groove is less than the length of the opening of the groove.

[0014] Furthermore, the length of the opening of the first adhesive retention groove is 2 / 3 of the length of the opening of the groove.

[0015] Furthermore, the opening width of the first adhesive retention groove is smaller than the opening width of the groove, and the opening width of the first adhesive retention groove is 0.2mm smaller than the opening width of the groove.

[0016] Furthermore, the first adhesive retention groove has a flat rectangular cross-section.

[0017] Furthermore, the groove opening width is smaller than the overall width of the magnet.

[0018] Furthermore, the inner wall of the fan blade assembly is provided with several first positioning grooves, through which the fan blade assembly is positioned and installed on the outer rotor housing.

[0019] Furthermore, a limiting component is fixedly installed at the bottom of the outer rotor housing, and a second positioning groove is formed along the circumferential direction at the bottom of the inner side wall of the fan blade assembly. The limiting component is fixedly engaged in the second positioning groove by a positioning part formed thereon.

[0020] The advantages of the motor mounting structure provided in this application compared to the prior art are as follows: By adopting the above-mentioned motor mounting structure, a first adhesive groove is formed in the groove on the inner side wall of the outer rotor housing, extending axially along the outer rotor housing. When the magnet is installed in the groove, the first adhesive groove is filled with glue, and one side of the magnet is glued and fixed in the first adhesive groove, improving its installation stability on the inner side wall of the outer rotor housing. At the same time, a second adhesive groove is formed on the outer side wall of the outer rotor housing, extending axially. By filling the second adhesive groove with glue, the outer wall of the outer rotor housing is glued and fixed to the inner wall of the outer shell of the fan blade assembly, so that the outer rotor housing and the fan blade assembly form an integral structure. This can further prevent the magnet and rotor housing from falling off during high-speed rotation of the motor, enhance the overall robustness of the motor, and improve the service life of the motor.

[0021] Another technical solution adopted in this application is to provide an electric motor, including the above-mentioned motor mounting structure.

[0022] As can be seen from the above technical solution, the motor provided in this application, due to the configuration of the above-mentioned motor mounting structure, has the corresponding technical effects of the above-mentioned motor mounting structure. During the use of the motor, the outer rotor housing and the fan blade assembly form an integral structure, which can further prevent the magnets and rotor housing from falling off during the high-speed rotation of the motor, enhance the overall robustness of the motor, and improve the service life of the motor. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the motor mounting structure in one embodiment of this application;

[0025] Figure 2 This is an exploded view of the motor mounting structure in one embodiment of this application.

[0026] Figure 3 This is a schematic diagram of the motor mounting structure in one embodiment of this application (after removing the fan blade assembly);

[0027] Figure 4 This is a longitudinal cross-sectional view of the motor mounting structure in one embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the motor mounting structure from the front view in one embodiment of this application;

[0029] Figure 6 for Figure 5 Schematic diagram of the AA-direction cross-section structure;

[0030] Figure 7 for Figure 5 Schematic diagram of the BB-direction cross-sectional structure in the middle;

[0031] Figure 8 This is a schematic diagram of a fan blade assembly in one embodiment of this application;

[0032] Figure 9 for Figure 6 A magnified schematic diagram of the structure at point C in the diagram;

[0033] Figure 10 for Figure 7 A magnified schematic diagram of the structure at point D in the diagram. Detailed Implementation

[0034] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] Example 1

[0036] Reference Figure 1 , Figure 2 as well as Figure 3 An electric motor mounting structure 10 includes an outer rotor assembly 200, a stator assembly 300, and a fan blade assembly 100. The outer rotor assembly 200 is concentrically mounted around the stator assembly 300, and the fan blade assembly 100 is also concentrically mounted around the outer rotor assembly 200.

[0037] Reference Figure 5 and Figure 7 As shown, the outer rotor assembly 200 includes an outer rotor housing 201. Several adhesive retention grooves are formed on the inner and outer side walls of the outer rotor housing 201. For ease of description, the adhesive retention groove formed on the inner side wall of the outer rotor housing 201 is called the first adhesive retention groove 202, and the adhesive retention groove formed on the outer side wall of the outer rotor housing 201 is called the second adhesive retention groove 203.

[0038] Reference Figure 5 , Figure 7 and Figure 10 As shown, multiple grooves 204 are uniformly arranged along the circumference of the inner sidewall of the outer rotor housing 201. The grooves 204 facilitate the installation of the magnet 400 on the outer rotor housing 201 through the grooves 204.

[0039] Reference Figure 7 and Figure 10 As shown, in some embodiments, the groove width h of the groove 204 is smaller than the outer width H of the magnet 400. This shape structure setting makes the magnet 400 not completely embedded in the groove 204 in the lateral direction of the outer rotor housing 201, thereby reducing magnetic reluctance loss, which is beneficial to improving the electromagnetic energy conversion efficiency and improving the performance of the motor.

[0040] Reference Figure 7 and Figure 10 As shown, the first adhesive groove 202 is formed on the side wall of the groove 204 near the back of the magnet 400. The first adhesive groove 202 is a slotted structure that extends through the outer rotor housing 201 axially. In some embodiments, the cross-section of the first adhesive groove 202 is preferably a flat rectangular cross-section. By adopting this shape, on the one hand, the contact area between the adhesive and the magnet 400 can be increased, enhancing the firmness; on the other hand, the opening depth of the first adhesive groove 202 (i.e., the groove width d2 of the first adhesive groove 202) can be reduced to a certain extent.

[0041] Reference Figure 7 and Figure 10As shown, the groove width d2 of the first adhesive retention groove 202 is less than the groove width d1 of the groove 201, and the groove width d2 of the first adhesive retention groove 202 is 0.2 mm less than the groove width d1 of the groove 201. The groove length D2 of the first adhesive retention groove 202 is less than the groove length D1 of the groove 201. For example, the groove length D2 of the first adhesive retention groove 202 is 2 / 3 of the groove length D1 of the groove 201.

[0042] Reference Figure 5 , Figure 7 and Figure 10 As shown, a plurality of second adhesive grooves 203 are formed on the outer side wall of the outer rotor housing 201, which are axially connected and arranged at intervals along the circumference of the outer rotor housing 201.

[0043] By adopting the above structure, when the magnet 400 is installed on the outer rotor housing 201, glue is filled in the first glue groove 202, and one side of the magnet 400 is glued and fixed in the first glue groove 202, which improves its installation stability on the inner wall of the outer rotor housing 201. By filling the second glue groove 203 with glue, the outer wall of the outer rotor housing 201 is glued and fixed to the inner wall of the outer shell of the fan blade assembly 100, so that the outer rotor housing 201 and the fan blade assembly 100 form an integral structure. This can further prevent the magnet 400 and the outer rotor housing from falling off during the high-speed rotation of the motor, enhance the overall firmness of the motor, and improve the service life of the motor.

[0044] Reference Figure 7 and Figure 10 As shown, the groove 204 on the inner wall of the outer rotor housing 201 is offset from the second adhesive groove 203 on the outer wall of the outer rotor housing 201. That is, if a groove 204 is formed at a certain position on the inner wall of the outer rotor housing 201, a second adhesive groove 203 will not be formed at the same position on the outer wall of the outer rotor housing 201 corresponding to the groove 204. Instead, a second adhesive groove 203 is formed on the outer wall of the outer rotor housing 201 adjacent to the position where the groove 204 is formed, so as to ensure the strength of the outer rotor housing 201 in use.

[0045] Reference Figure 7 and Figure 10 As shown, in some embodiments, the groove width E of the second adhesive retention groove 203 is 0.5 to 1 mm. By setting the groove widths of the first adhesive retention groove 202 and the second adhesive retention groove 203 as described above, interference of the adhesive retention grooves with the magnetic field generated in the motor can be avoided, ensuring the normal operation of the motor.

[0046] Reference Figure 2 , Figure 5 as well as Figures 7 to 9As shown, the inner wall of the fan blade assembly 100 is also provided with several first positioning grooves 101, through which the fan blade assembly 100 is positioned and installed on the outer rotor housing 201. Specifically, refer to... Figure 8 As shown, a plurality of first positioning grooves 101 are arranged at intervals along the circumferential direction of the inner sidewall of the fan blade assembly 100. The first positioning grooves 101 extend vertically from the top end to the bottom end of the inner sidewall of the fan blade assembly 100. The outer wall of the outer rotor housing 201 is correspondingly formed with protrusions that engage with the first positioning grooves 101. In this way, when the fan blade assembly 100 is assembled with the outer rotor housing 201, the fan blade assembly 100 slides into the protrusions on the outer sidewall of the outer rotor housing 201 through the first positioning grooves 101 on its inner sidewall, thereby realizing the positioning and installation of the fan blade assembly 100 on the outer rotor housing 201.

[0047] Reference Figure 2 , Figure 4 as well as Figures 6 to 8 As shown, a second positioning groove 102 is formed along the circumferential direction at the bottom end of the inner sidewall of the fan blade assembly 100. A limiting member 500 is fixedly installed at the bottom end of the outer rotor housing 201. The limiting member 500 is provided with a positioning part 501, which nests and cooperates with the second positioning groove 102 on the fan blade assembly 100, thereby fixing the limiting member 500 to the bottom of the rotor assembly and the magnet 400. Furthermore, the bottom of the outer rotor housing 201 and the magnet 400 are bonded to the limiting member 500 with adhesive, thereby enhancing the firmness of the limiting member 500 after installation.

[0048] Furthermore, since the first glue-retaining groove 202 and the second glue-retaining groove 203 extend longitudinally along the outer rotor housing 201, during the assembly process, some of the glue is squeezed by the magnet 400 or the outer rotor housing 201 during installation and flows longitudinally along the first glue-retaining groove 202 and the second glue-retaining groove 203, causing some of the glue to flow towards the end of the limiting member 500 or the fan blade assembly 100. This improves the utilization rate of the glue on the one hand, and enhances the overall robustness of the motor on the other.

[0049] Example 2

[0050] Based on the same technical concept, this application provides an electric motor, including the motor mounting structure 10 in the above embodiments. Due to the configuration of the above-mentioned motor mounting structure 10, it has the corresponding technical effects of the above-mentioned motor mounting structure. During the use of the motor, the outer rotor housing 201 and the fan blade assembly 100 form an integral structure, which can further prevent the magnet 400 and the rotor housing from falling off during the high-speed rotation of the motor, enhance the overall robustness of the motor, and improve the service life of the motor.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A motor mounting structure, comprising: An outer rotor assembly, the outer rotor assembly including an outer rotor housing, the inner sidewall of which is formed with a plurality of grooves for mounting magnets; Wind turbine blade assembly; The feature is that a first adhesive groove is formed on the sidewall of each of the grooves, which extends axially along the outer rotor housing; The outer side wall of the outer rotor housing is formed with a plurality of second adhesive grooves that extend along its axial direction, and the plurality of second adhesive grooves are arranged at intervals along the circumferential direction of the outer rotor housing.

2. The motor mounting structure according to claim 1, characterized in that, The groove and the second adhesive groove are offset and disposed on the inner and outer side walls of the outer rotor housing.

3. A motor mounting structure according to claim 1 or 2, characterized in that, The length of the opening of the first adhesive retention groove is less than the length of the opening of the groove.

4. The motor mounting structure according to claim 3, characterized in that, The length of the opening of the first adhesive retention groove is 2 / 3 of the length of the opening of the groove.

5. The motor mounting structure according to claim 3, characterized in that, The opening width of the first adhesive retention groove is smaller than the opening width of the groove, and the opening width of the first adhesive retention groove is 0.2mm smaller than the opening width of the groove.

6. The motor mounting structure according to claim 1, characterized in that, The first adhesive retention groove has a flat rectangular cross-section.

7. The motor mounting structure according to claim 1, characterized in that, The groove opening width is smaller than the overall width of the magnet.

8. The motor mounting structure according to claim 1, characterized in that, The inner wall of the fan blade assembly is also provided with a number of first positioning grooves, and the fan blade assembly is positioned and installed on the outer rotor housing through the first positioning grooves.

9. A motor mounting structure according to claim 8, characterized in that, A limiting component is fixedly installed at the bottom of the outer rotor housing. A second positioning groove is formed along the circumferential direction at the bottom of the inner sidewall of the fan blade assembly. The limiting component is fixedly engaged in the second positioning groove by a positioning part formed thereon.

10. An electric motor, characterized in that, Includes the motor mounting structure as described in any one of claims 1 to 9.

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