CN215419979U - Assembly structure of motor controller and motor - Google Patents

Assembly structure of motor controller and motor Download PDF

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Publication number
CN215419979U
CN215419979U CN202121718582.9U CN202121718582U CN215419979U CN 215419979 U CN215419979 U CN 215419979U CN 202121718582 U CN202121718582 U CN 202121718582U CN 215419979 U CN215419979 U CN 215419979U
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China
Prior art keywords
controller
motor
shaft hole
central shaft
protruding portion
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CN202121718582.9U
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Chinese (zh)
Inventor
王海洋
肖胜宇
任丽君
邵珠鑫
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Abstract

The utility model provides an assembly structure of a motor controller and a motor, wherein the assembly structure of the motor controller comprises: motor cover, controller and fastener, the motor cover has first center shaft hole, the controller has second center shaft hole first center shaft hole department is provided with the bulge, the bulge along the axial extension in first center shaft hole, just first center shaft hole with second center shaft hole is relative, the bulge can pass second center shaft hole and with the fastener is fixed. According to the utility model, when the motor controller is arranged on the motor cover, no hole or slot is needed to be punched on the control panel, the actual board distribution area is not reduced, the arrangement of wiring and electronic components is not influenced, the cost of the controller is not increased, the production efficiency and the assembly efficiency are improved, and the heat dissipation efficiency of the controller is effectively improved.

Description

Assembly structure of motor controller and motor
Technical Field
The utility model relates to the technical field of motors, in particular to an assembly structure of a motor controller and a motor.
Background
At present, the brushless direct current motor controller has two assembling modes: the first is that the controller is fixed on the stator insulation framework by means of fastening or screwing; the second is to use screws to directly mount and fix the controller on the motor cover (or motor casing). The ideal state of the two assembly modes is as follows: the electronic components on the controller make seamless contact with the motor cover (or motor casing) to achieve optimal heat dissipation conditions.
However, in actual production, both assembling methods have different disadvantages. The first kind fixes the assembly method on insulating skeleton with the controller, because reasons such as dimensional tolerance and assembly process between the spare part, between the different motors of same batch, the distance is not of uniform size between electronic component and the motor cover (or motor casing), can only design according to worst radiating condition (the biggest radiating distance), leads to the type selection condition requirement to electronic component higher, and dispel the heat when the distance is great not good, probably causes electronic component's burnout, and then leads to the unable normal work of motor. The second kind uses the screw to fix the assembly methods on motor cover (or motor casing) with controller direct mount, because of the spare part reduction that influences the controller assembly, the heat dissipation distance problem of not uniform size is alleviated to some extent, but still can not reach completely unanimous to this kind of assembly methods need to use the more than three screw at least to fix, and assembly efficiency is low, and has the risk of neglected loading screw. In addition, at present, two assembling modes need to punch or slot on the control panel, so that the actual board distribution area is reduced, the arrangement of wiring and electronic components is influenced, and the cost of the controller is increased.
Because the motor controller in the prior art needs to punch or slot on the control panel when being installed on the motor cover or the insulating framework, the actual board distribution area is reduced, the arrangement of wiring and electronic components is influenced, and the cost of the controller is increased; the assembly efficiency is low due to the fact that the holes are formed and the structure is fixed through the screws, and the risk of neglected installation of the screws exists; and the heat dissipation distance between the motor controller and the motor cover (or the motor casing) is not uniform, so that the heat dissipation of the motor controller is poor, and the like.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to overcome the defects that the actual board distribution area is reduced and the arrangement of wiring and electronic components is affected because the motor controller in the prior art needs to punch or slot on the control board when being installed on the motor cover or the insulating framework, so that the assembling structure of the motor controller and the motor are provided.
In order to solve the above problems, the present invention provides an assembly structure of a motor controller, including:
motor cover, controller and fastener, the motor cover has first center shaft hole, the controller has second center shaft hole first center shaft hole department is provided with the bulge, the bulge along the axial extension in first center shaft hole, just first center shaft hole with second center shaft hole is relative, the bulge can pass second center shaft hole and with the fastener is fixed.
In some embodiments, the protruding portion is a cylindrical structure, a first external thread is disposed on an outer circumferential surface of the protruding portion, the fastening member is a circular ring structure, a first internal thread is disposed on an inner circumferential surface of the fastening member, the fastening member can be sleeved on the outer circumference of the protruding portion, and fastening is achieved through threaded fit between the first external thread and the first internal thread.
In some embodiments, the protruding portion is a cylindrical structure, a second internal thread is provided on an inner circumferential surface of the protruding portion, the fastening member includes a first cylindrical portion and a second cylindrical portion, an outer diameter of the first cylindrical portion is smaller than an outer diameter of the second cylindrical portion, a second external thread is provided on an outer circumferential surface of the first cylindrical portion, the second external thread of the first cylindrical portion can be in threaded fit with the second internal thread of the protruding portion to insert the first cylindrical portion into the inner circumferential surface of the protruding portion, and an end surface of the second cylindrical portion, which is in contact with the first cylindrical portion, can be in abutment with an end surface of the controller to limit the controller.
In some embodiments, the controller is a sheet-like structure having electronic components disposed thereon; and/or the first central shaft bore constitutes a bearing chamber, which can accommodate a bearing.
In some embodiments, the surface of the fastener opposite the controller is a contact surface on which an anti-slip structure is disposed.
In some embodiments, the side of the fastener opposite the controller is a non-contact side, and the non-contact side is a smooth side.
In some embodiments, the motor cover is further provided with a clamping structure protruding towards the direction of the controller, and the clamping structure can perform positioning clamping on the controller after the controller is installed on the motor cover.
In some embodiments, the protrusion is disposed on the inner circumferential wall of the first central shaft hole, the protrusion has a cylindrical or columnar structure, and a radial outer circumference of the protrusion is fixedly disposed with the inner circumferential wall of the first central shaft hole.
In some embodiments, the motor cover includes an end surface, the protrusion is disposed on the end surface of the motor cover, the protrusion is a cylindrical structure and includes a radial outer periphery and a radial inner periphery, and the first central shaft hole is located radially inside the radial inner periphery of the protrusion or an inner peripheral surface of the first central shaft hole is flush with an inner peripheral surface of the radial inner periphery of the protrusion.
The utility model also provides a motor, which comprises the assembling structure of the motor controller.
The assembly structure of the motor controller and the motor provided by the utility model have the following beneficial effects:
1. according to the utility model, the protruding part is arranged on the motor cover, the fastener is also arranged, the first central shaft hole on the motor cover and the second central shaft hole on the controller are utilized during assembly, so that the two central shaft holes are opposite, the protruding part is inserted into the second central shaft hole, and the fastener is utilized to be fastened and connected with the protruding part, therefore, when the motor controller is installed on the motor cover, punching or slotting on the control board is not needed, the actual board distribution area is not reduced, the arrangement of wiring and electronic components is not influenced, and the cost of the controller is not increased; compared with the scheme that holes or grooves need to be formed in the control panel and a plurality of screws are used for connecting and fastening in the prior art, the protruding part and the fastening piece can be in threaded connection, clamping connection and the like, the connecting mode is simpler and more convenient, only one step is needed in the installation process, and the production efficiency is effectively improved;
2. according to the assembly mode of the brushless direct current motor controller, the controller is screwed and fixed on the motor cover through the threaded fit of the tightening piece and the motor cover bearing chamber, so that an electronic element on the controller is in seamless contact with the motor cover (or a motor shell), structures such as heat-conducting silica gel are not needed, the optimal heat dissipation effect is achieved, the heat dissipation efficiency of the controller is improved, the problems of uneven heat dissipation distance between the motor controller and the motor cover (or the motor shell) and low assembly efficiency of the controller are solved, the heat dissipation condition of the controller is improved, and the production efficiency of the motor is improved.
Drawings
Fig. 1 is a structural view of a motor cover in an assembling structure of a motor controller of the present invention;
fig. 2 is a structural view of a controller in an assembly structure of a motor controller of the present invention;
FIG. 3 is a front structural view of a fastener in an assembling structure of the motor controller of the utility model;
fig. 4 is a rear view of a fastener in the assembling structure of the motor controller of the present invention;
fig. 5 is a structural view of the motor controller of the present invention after the assembly of the assembly structure is completed.
The reference numerals are represented as:
1. a motor cover; 10. a first central shaft hole; 2. a controller; 20. a second central shaft hole; 21. an electronic component; 3. a fastener; 31. a contact surface; 32. a non-contact surface; 33. a first internal thread; 34. an anti-slip structure; 4. a projection; 41. a first external thread; 5. a clamping structure.
Detailed Description
As shown in fig. 1 to 5, the present invention provides an assembling structure of a motor controller, which includes:
motor lid 1 (or motor casing), controller 2 and fastener 3, motor lid 1 has first central shaft hole 10, controller 2 has second central shaft hole 20 first central shaft hole 10 department is provided with bulge 4, bulge 4 along the axial extension in first central shaft hole 10, just first central shaft hole 10 with second central shaft hole 20 is relative, bulge 4 can pass second central shaft hole 20 and with fastener 3 is fixed.
According to the utility model, the protruding part is arranged on the motor cover, the fastener is also arranged, the first central shaft hole on the motor cover and the second central shaft hole on the controller are utilized during assembly, so that the two central shaft holes are opposite, the protruding part is inserted into the second central shaft hole, and the fastener is utilized to be fastened and connected with the protruding part, therefore, when the motor controller is installed on the motor cover, punching or slotting on the control board is not needed, the actual board distribution area is not reduced, the arrangement of wiring and electronic components is not influenced, and the cost of the controller is not increased; compared with the scheme that holes or grooves need to be formed in the control panel and a plurality of screws are used for connecting and fastening in the prior art, the protruding portion and the fastening piece can be in threaded connection, clamping connection and the like, the connecting mode is simpler and more convenient, only one step is needed in the installation process, and the production efficiency is effectively improved.
According to the assembly mode of the brushless direct current motor controller, the controller is screwed and fixed on the motor cover through the threaded fit of the tightening piece and the motor cover bearing chamber, so that an electronic element on the controller is in seamless contact with the motor cover (or a motor shell), structures such as heat-conducting silica gel are not needed, the optimal heat dissipation effect is achieved, the problems of uneven heat dissipation distance between the motor controller and the motor cover (or the motor shell) and low assembly efficiency of the controller are solved, the heat dissipation condition of the controller is improved, and the production efficiency of the motor is improved.
In some embodiments, the protruding portion 4 is a cylindrical structure, and has a first external thread 41 on its outer circumferential surface, the fastening member 3 is a circular ring structure, and has a first internal thread 33 on its inner circumferential surface, and the fastening member 3 can be sleeved on the outer circumference of the protruding portion 4, and the fastening is realized by the thread fit between the first external thread 41 and the first internal thread 33. The protruding part and the fastener are in a preferable structure form, the outer peripheral surface of the protruding part is preferably provided with a first external thread, and after the protruding part is inserted into the second central shaft hole, the inner peripheral surface of the fastener is screwed to the outer peripheral surface of the protruding part through the first internal thread on the inner peripheral surface of the fastener, so that the purpose of fixing the controller on the motor cover is achieved.
The motor cover structure is shown in figure 1, the protruding part protrudes out of the plane of the motor cover to form a thin-wall structure with threads, and a control panel mounting and positioning structure is designed to play a guiding role in the assembly of a control panel and prevent the control panel from generating angle deviation in the mounting process. The controller structure of the utility model is shown in figure 2, has no mounting hole or clamping groove structure, does not influence or interfere the arrangement of electronic elements, simplifies the production process of the control board and reduces the cost of the controller. The structure of the screwing piece is shown in figures 3-4, the inner circle is threaded, the outer circle is round (square or polygonal and the like), the material is plastic and other insulating materials, a plurality of anti-skid grains are arranged on the contact surface of the screwing piece and the controller, and the screwing piece is not easy to loosen after screwing. The schematic diagram of the assembly completion of the controller and the motor cover is shown in fig. 5, the central shaft hole of the controller is matched with the convex thin-wall structure of the motor cover, the controller is placed in place through the positioning structure on the motor cover, the screwing piece is sleeved on the convex thin-wall structure of the bearing chamber of the motor cover and rotates until the electronic element on the controller is in seamless contact with the motor cover (or the motor shell), the optimal heat dissipation effect is achieved, the problem of uneven heat dissipation distance caused by dimensional tolerance between parts and assembly process among different motors can be solved, the electronic element of each motor can be ensured to be in seamless contact with the motor cover (or the motor shell), the heat dissipation efficiency is improved, the number of repeated screwing operation steps is reduced into one screwing piece, and the production efficiency is improved.
The motor controller assembly structure can effectively improve the heat dissipation environment of electronic elements of the controller, enables each motor to achieve the optimal heat dissipation effect in actual production, improves the heat dissipation efficiency, reduces the installation operation steps into one step, improves the production efficiency, eliminates the influence on the arrangement of the electronic elements of the controller due to the arrangement of the installation holes/clamping grooves, simplifies the production process of the controller, and reduces the production cost.
In some embodiments, the protruding portion 4 is a cylindrical structure, and a second internal thread (not shown) is provided on an inner circumferential surface thereof, the fastening member 3 includes a first cylindrical portion (not shown) and a second cylindrical portion (not shown), an outer diameter of the first cylindrical portion is smaller than an outer diameter of the second cylindrical portion, and a second external thread (not shown) is provided on an outer circumferential surface of the first cylindrical portion, the second external thread of the first cylindrical portion can be in threaded fit with the second internal thread of the protruding portion 4 to insert the first cylindrical portion into the inner circumferential surface of the protruding portion 4, and an end surface of the second cylindrical portion contacting the first cylindrical portion can abut against an end surface of the controller 2 to limit the controller 2. This is another preferable configuration of the protruding portion and the fastening member of the present invention, wherein the inner peripheral surface of the protruding portion is preferably provided with a second internal thread, and after the protruding portion is inserted into the second central axial hole, the first cylindrical portion is inserted into the inner peripheral surface of the protruding portion through the second external thread on the outer peripheral surface of the first cylindrical portion of the fastening member, and the second external thread is screwed with the second internal thread, so that the first cylindrical portion of the fastening member is screwed to the inner peripheral surface of the protruding portion, and at this time, the second cylindrical portion is used for performing an abutting limit function on the controller due to its outer diameter being larger than that of the first cylindrical portion, thereby achieving the purpose of fixing the controller to the motor cover.
In some embodiments, the controller 2 is a sheet-like structure on which the electronic components 21 are disposed; and/or the first central shaft bore 10 constitutes a bearing chamber, which can accommodate a bearing. The controller is a preferable structure form of the controller, and the electronic element is arranged on the controller and can be electrified to work; the first central shaft hole can accommodate a bearing therein to support the rotating shaft for rotation.
In some embodiments, the surface of the fastener 3 opposite to the controller 2 is a contact surface 31, and the contact surface 31 is provided with an anti-slip structure 34. The anti-slip structure is arranged on the contact surface of the fastening piece and the controller, so that the friction between the fastening piece and the controller can be increased, and the purpose of fastening the controller is further improved. The anti-slip structure is preferably an anti-slip texture structure.
In some embodiments, the side of the fastener 3 opposite the controller 2 is a non-contact side 32, and the non-contact side 32 is a smooth side. This is a preferred form of construction for the fastener of the utility model, and the side opposite the controller is smooth to enhance aesthetics.
In some embodiments, the motor cover 1 is further provided with a clamping structure 5 protruding toward the controller 2, and the clamping structure 5 can perform positioning clamping on the controller 2 after the controller 2 is mounted on the motor cover 1. The clamping structure arranged on the motor cover can clamp and position the controller, so that the positioning and fastening effects on the controller are further improved.
In some embodiments, the protruding portion 4 is disposed on the inner peripheral wall of the first central shaft hole 10, the protruding portion 4 is cylindrical or columnar, and the radial outer periphery of the protruding portion 4 is fixedly disposed on the inner peripheral wall of the first central shaft hole 10. This is a preferred arrangement of the protruding portion of the present invention, that is, the protruding portion is disposed on the inner peripheral wall of the first central shaft hole in an abutting manner and extends in the axial direction, and it is possible to fix the protruding portion by interference or the like, but the arrangement of the protruding portion cannot affect the arrangement of the bearing and the rotating shaft in the first central shaft hole.
In some embodiments, the motor cover 1 includes an end surface, the protruding portion 4 is disposed on the end surface of the motor cover 1, the protruding portion 4 is a cylindrical structure and includes a radial outer circumference and a radial inner circumference, and the first central shaft hole 10 is located radially inside the radial inner circumference of the protruding portion 4, or an inner circumferential surface of the first central shaft hole 10 is flush with an inner circumferential surface of the radial inner circumference of the protruding portion 4. This is another preferred arrangement form of the protruding portion of the present invention, that is, the protruding portion is disposed on the end face of the motor cover and extends axially, and it can be integrally cast or injection molded or welded with the motor cover by means of integral molding.
The utility model also provides a motor, which comprises the assembling structure of the motor controller.
According to the assembly structure of the brushless direct current motor controller, the controller is screwed and fixed on the motor cover through the thread fit of the non-metal tightening piece and the motor cover bearing chamber, so that the problem of uneven heat dissipation distance between the controller and the motor cover (or the motor shell) is fundamentally solved, an electronic element on the controller is in seamless contact with the motor cover (or the motor shell), the optimal heat dissipation effect is achieved, and the reliability of the motor is improved; meanwhile, the installation operation steps are reduced, and the production efficiency is improved; in addition, the punching or slotting on the control panel is avoided, the production process of the control panel is simplified, and the cost is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. An assembly structure of a motor controller, characterized in that: the method comprises the following steps:
motor lid (1), controller (2) and fastener (3), motor lid (1) has first central shaft hole (10), controller (2) have second central shaft hole (20) first central shaft hole (10) department is provided with bulge (4), bulge (4) are along the axial extension in first central shaft hole (10), just first central shaft hole (10) with second central shaft hole (20) are relative, bulge (4) can pass second central shaft hole (20) and with fastener (3) are fixed.
2. The assembling structure of a motor controller according to claim 1, wherein:
the protruding portion (4) is of a cylindrical structure, first external threads (41) are arranged on the outer circumferential surface of the protruding portion, the fastening piece (3) is of a circular ring structure, first internal threads (33) are arranged on the inner circumferential surface of the fastening piece, the fastening piece (3) can be sleeved on the periphery of the protruding portion (4), and fastening is achieved through threaded matching between the first external threads (41) and the first internal threads (33).
3. The assembling structure of a motor controller according to claim 1, wherein:
the protruding portion (4) is of a cylindrical structure, second internal threads are arranged on the inner circumferential surface of the protruding portion, the fastening piece (3) comprises a first cylindrical portion and a second cylindrical portion, the outer diameter of the first cylindrical portion is smaller than that of the second cylindrical portion, second external threads are arranged on the outer circumferential surface of the first cylindrical portion, the second external threads of the first cylindrical portion can be in threaded fit with the second internal threads of the protruding portion (4) so that the first cylindrical portion can be inserted into the inner circumferential surface of the protruding portion (4), and the end face, connected with the first cylindrical portion, of the second cylindrical portion can be abutted to the end face of the controller (2) to limit the controller (2).
4. The assembling structure of a motor controller according to claim 1, wherein:
the controller (2) is of a sheet structure, and an electronic element (21) is arranged on the controller; and/or the presence of a gas in the gas,
the first central shaft bore (10) forms a bearing chamber which can accommodate a bearing.
5. The assembling structure of a motor controller according to claim 1, wherein:
the surface of the fastener (3) opposite to the controller (2) is a contact surface (31), and an anti-skid structure (34) is arranged on the contact surface (31).
6. The assembling structure of a motor controller according to claim 1, wherein:
the surface of the fastener (3) opposite to the controller (2) is a non-contact surface (32), and the non-contact surface (32) is a smooth surface.
7. The assembling structure of a motor controller according to claim 1, wherein:
the motor cover (1) is provided with a clamping structure (5) in a protruding mode towards the direction of the controller (2), and the clamping structure (5) can be used for positioning and clamping the controller (2) after the controller (2) is installed on the motor cover (1).
8. The assembling structure of a motor controller according to claim 1, wherein:
bulge (4) set up in on the internal perisporium of first central shaft hole (10), bulge (4) are cylindric or cylindric structure, the radial periphery of bulge (4) with the internal perisporium of first central shaft hole (10) is fixed to be set up.
9. The assembling structure of a motor controller according to claim 1, wherein:
the motor cover (1) comprises an end face, the protruding portion (4) is arranged on the end face of the motor cover (1), the protruding portion (4) is of a cylindrical structure and comprises a radial outer periphery and a radial inner periphery, and the first central shaft hole (10) is located on the radial inner side of the radial inner periphery of the protruding portion (4) or the inner peripheral surface of the first central shaft hole (10) is flush with the inner peripheral surface of the radial inner periphery of the protruding portion (4).
10. An electric machine characterized by: an assembly structure including a motor controller according to any one of claims 1 to 9.
CN202121718582.9U 2021-07-27 2021-07-27 Assembly structure of motor controller and motor Active CN215419979U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121718582.9U CN215419979U (en) 2021-07-27 2021-07-27 Assembly structure of motor controller and motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121718582.9U CN215419979U (en) 2021-07-27 2021-07-27 Assembly structure of motor controller and motor

Publications (1)

Publication Number Publication Date
CN215419979U true CN215419979U (en) 2022-01-04

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CN202121718582.9U Active CN215419979U (en) 2021-07-27 2021-07-27 Assembly structure of motor controller and motor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113489245A (en) * 2021-07-27 2021-10-08 珠海格力电器股份有限公司 Assembly structure of motor controller and motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113489245A (en) * 2021-07-27 2021-10-08 珠海格力电器股份有限公司 Assembly structure of motor controller and motor
CN113489245B (en) * 2021-07-27 2024-08-23 珠海格力电器股份有限公司 Motor controller's assembly structure and motor

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