Sound wave motor with simple structure

Abstract

The utility model discloses a sound wave motor with a simple structure. The sound wave motor comprises a rotor assembly, a stator assembly and a coil assembly. The rotor assembly comprises a rotor rotating shaft and a rotor iron core nested at one end of the rotor rotating shaft; two sides of the rotor core are respectively provided with a pair of magnetic sheets; the stator assembly comprises a stator shell and a pair of stator iron cores installed on the stator shell. The coil assembly comprises a coil support, a winding coil installed on the coil support and an I-shaped iron core. The whole motor is relatively few in structural components and simple in whole structure, the iron core and the shell adopt an integrated structure, and the stator iron core and the rotor are coaxially matched, so that manual secondary assembly is not needed for arrangement of the iron core, the concentricity tolerance of the stator iron core and the rotor is small, vibration is small when the rotor rotates at a high speed, and the service life of the motor is prolonged. The noise of the motor during operation is effectively reduced, the consistency of various parameters of the motor is ensured, and the stability of the quality of mass-produced motors is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor structures and relates to a sonic motor with a simple structure. Background Art

[0002] The traditional motor structure mainly includes a stator part and a rotor part. The stator part includes a casing, a stator core and a coil winding fixed to the casing. During the installation process, the core requires manual secondary assembly, which makes the concentricity tolerance of the stator core and the rotor large. Not only is the processing cost higher, but the overall assembly process is relatively complex and difficult. Moreover, when the tolerance between the stator core and the rotor is large, it will cause the rotor to vibrate more when rotating at high speed, making it difficult to guarantee the production quality of the motor. Utility Model Content

[0003] In order to solve the implementation technical problems, the utility model adopts the following technical solutions:

[0004] A simple-structured sonic motor comprises a rotor assembly, a stator assembly and a coil assembly;

[0005] The rotor assembly includes: a rotor shaft and a rotor core nested on one end of the rotor shaft; a pair of magnetic plates are provided on each side of the rotor core, wherein the two sets of magnetic plates on the same side have opposite magnetic poles, while the magnetic plates on opposite sides have the same magnetic poles;

[0006] The stator assembly includes: a stator housing and a pair of stator cores mounted on the stator housing; the rotor core of the rotor assembly is arranged in the stator housing;

[0007] The coil assembly includes: a coil support, a winding coil mounted on the coil support, and an I-shaped iron core; the coil support is plugged into and mated with the stator housing; the winding coil is wound around the I-shaped iron core, with the two ends of the I-shaped iron core forming coil magnetic extreme ends with opposite magnetic poles;

[0008] The stator core is a bar-shaped structure, one end of the stator core is connected to the coil magnetic pole of the I-shaped core, and the other end of the stator core extends to the side end position of the magnetic sheet and fits in the gap with it.

[0009] As a further solution of the present invention: plug-in arms extending in the direction of the coil support are respectively formed on both sides of the stator housing, and iron core mounting grooves arranged along the extending direction of the plug-in arms are also formed on both sides of the stator housing, and the stator iron core is installed in the iron core mounting grooves;

[0010] The stator housing and the coil support are plugged together along the axial direction of the rotor shaft. Both sides of the stator housing are respectively formed with plug-in arms extending toward the coil support, while both sides of the coil support are respectively provided with plug-in slots for inserting the plug-in arms.

[0011] As a further solution of the present invention: iron core mounting grooves are further formed on both sides of the stator housing, the side position of one end of the iron core mounting groove is communicated with the internal mounting cavity of the stator housing, and the other end is arranged along the extension direction of the plug-in arm and connected to the plug-in groove;

[0012] The stator core is a long strip structure, which is installed in the core mounting slot. A magnetic pole tooth portion is formed at one end of the stator core, which extends into the internal mounting cavity of the stator shell and cooperates with the magnetic sheet on the rotor core; the other end is a connecting portion, which extends along the core mounting slot to the plug-in slot and connects to the magnetic end of the I-shaped core.

[0013] As a further solution of the present invention, the coil support comprises: two sets of support side portions arranged in parallel, a winding cavity for arranging the winding coil is formed between the two sets of support side portions, and a winding support rod connected to the two side support portions, and the winding coil is wound on the winding support rod;

[0014] The iron core installation groove is arranged on the outer end surface of the side of the bracket, and an iron core installation cavity for installing the I-shaped iron core is formed in the winding support rod, and both ends of the iron core installation cavity are respectively communicated with the plug-in groove.

[0015] As a further solution of the present invention: a group of bearing mounting cavities are respectively opened at both axial ends of the stator housing, and fixed bearings are formed in the bearing mounting cavities; the rotor shaft is rotatably fixed in the stator housing through two groups of fixed supports.

[0016] The beneficial effects of the present invention are as follows: the overall motor structure has relatively few components, the overall structure is simple, the requirements for the assembly process are lower, and faster and more accurate installation can be achieved; and the iron core and the shell adopt an integrated structure, and the stator iron core and the rotor are coaxially adapted, so that the setting of the iron core does not require manual secondary assembly, and the tolerance of the concentricity of the stator iron core and the rotor is small, so that the rotor vibrates less when rotating at high speed, effectively reducing the noise during motor operation, and at the same time, ensuring the consistency of various parameters of the motor, greatly improving the quality stability of mass-produced motors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the utility model.

[0018] Figure 2 This is another structural diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of an embodiment of the present utility model.

[0020] Figure 4 It is a structural schematic diagram of the stator housing in the utility model.

[0021] Figure 5It is a schematic diagram of the assembled cross-sectional structure of the stator housing in the utility model.

[0022] Figure 6 It is a structural schematic diagram of the coil support in the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. It should be understood that this application is not limited to the example embodiments disclosed herein. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0026] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0027] This utility model provides Figures 1 to 6 In an embodiment of the present invention, a simple-structured sonic motor includes: a rotor assembly 1, a stator assembly 2, and a coil assembly 3;

[0028] The rotor assembly 1 includes a rotor shaft 11 and a rotor core 13 nested on one end of the rotor shaft 11. The other end of the rotor shaft 11 extends outward to achieve output operation. A pair of magnetic plates 12 are respectively provided on both sides of the rotor core 13. The two sets of magnetic plates 12 on the same side have opposite magnetic poles, while the magnetic plates 12 on opposite sides have the same magnetic poles.

[0029] For example, if the upper magnetic piece 12 of the two magnetic pieces 12 on the same side is N-pole, the lower magnetic piece 12 on the same side is S-pole; and if the upper magnetic piece 12 of the two magnetic pieces 12 on the other side is N-pole, the lower magnetic piece 12 is S-pole.

[0030] The stator assembly 2 includes a stator housing 22 and a pair of stator cores 21 mounted on the stator housing 22; the rotor core 13 of the rotor assembly 1 is disposed in the stator housing 22;

[0031] The coil assembly 3 includes a coil support 33, a winding coil 31 mounted on the coil support 33, and an I-shaped iron core 32. The coil support 33 is plugged into the stator housing 22. The winding coil 31 is wound around the I-shaped iron core 32, and the two ends of the I-shaped iron core 32 form coil magnetic pole ends 321 with opposite magnetic poles.

[0032] The stator core 21 is a bar-shaped structure. One end of the stator core 21 is connected to the coil pole end 321 of the I-shaped core 32, and the other end of the stator core 21 extends to the side end position of the magnetic sheet 12 and is gap-fitted therewith.

[0033] When the winding coil 31 is energized, the magnetic field generated by the winding coil 31 can be conducted to the stator core 21 through the I-shaped iron core 32. The armature magnetic field on the stator core 21 interacts synchronously with the excitation magnetic field on the magnetic sheet 12.

[0034] The stator core 21 generates a rotational driving torque in the same direction on the magnetic sheet 12. As the current direction of the winding coil 31 switches, the rotational driving torque also reverses, thereby achieving the left and right rotation and swing of the rotor core 13 (rotor shaft 11).

[0035] like Figure 3 As shown, in this embodiment, the upper magnetic piece 12 is the S pole, and the lower magnetic piece 12 is the N pole. At a certain moment, the stator core 21 on the left is the N pole, and the stator core 21 on the right is the S pole.

[0036] Therefore, at this instant, according to the principle of magnetic pole attraction and repulsion, the rotor core 13 will swing in a manner with the left side facing upward and the right side facing downward. At the next instant, when the N-S poles of the two sets of stator cores 21 switch, the rotor core 13 will swing again in a manner with the left side facing downward and the right side facing upward, and the rotor shaft 11 will rotate and swing left and right in this reciprocating manner.

[0037] In the above embodiment, the change of the magnetic poles on the stator core 21 is determined by the positive and negative circuits of the input winding coil 31; the rotational swing frequency of the rotor shaft 11 is determined by the frequency of the current input, and the torque is determined by the magnitude of the input current. Therefore, in actual use, the staff implements work adjustments based on the above principles to achieve the desired technical effects.

[0038] Furthermore, both sides of the stator housing 22 are respectively formed with plug-in arms 222 extending toward the coil support 33 , and both sides of the stator housing 22 are also formed with core mounting grooves 221 arranged along the extending direction of the plug-in arms 222 , and the stator core 21 is mounted in the core mounting grooves 221 ;

[0039] The stator housing 22 and the coil support 33 are plugged together in the axial direction of the rotor shaft 11. A plug-in arm 222 extending toward the coil support 33 is formed on both sides of the stator housing 22, while a plug-in slot 331 for inserting the plug-in arm 222 is provided on both sides of the coil support 33. The plug-in arm 222 cooperates with the plug-in slot 331 to achieve a quick installation and mating effect between the stator housing 22 and the coil support 33.

[0040] In order to achieve the installation and fit of the stator core 21, core installation grooves 221 are further formed on both sides of the stator housing 22. The side position of one end of the core installation groove 221 is connected to the internal installation cavity of the stator housing 22, and the other end is arranged along the extension direction of the plug arm 222 and connected to the plug slot 331;

[0041] The stator core 21 is in the shape of an elongated strip and is installed in the core mounting slot 221. A magnetic pole tooth portion 211 is formed at one end thereof. The magnetic pole tooth portion 211 extends into the internal mounting cavity of the stator housing 22 and cooperates with the magnetic sheet 12 on the rotor core 13. During operation, the rotation and swinging effect of the motor is achieved by changing the magnetic poles on the magnetic pole tooth portion 211. The other end is a connecting portion 212, which extends along the core mounting slot 221 to the plug-in slot 331 and connects to the magnetic pole end of the I-shaped core 32.

[0042] Furthermore, the coil support 33 includes: two sets of parallel support side portions 334, a winding cavity for arranging the winding coil 31 is formed between the two sets of support side portions 334, and a winding support rod 333 connected to the two side support side portions 334, and the winding coil 31 is wound on the winding support rod 333;

[0043] The core mounting groove 221 is arranged on the outer end surface of the bracket side 334, and the winding support rod 333 is formed with a core mounting cavity 332 for installing the I-shaped core 32. The two ends of the core mounting cavity 332 are respectively connected to the plug-in groove 331, so that when the I-shaped core 32 is installed in the core mounting cavity 332, the coil magnetic end 321 of the I-shaped core 32 is located in the plug-in groove 331.

[0044] Furthermore, a group of bearing mounting cavities 223 are respectively opened at both axial ends of the stator housing 22, and a fixed bearing 14 is formed in the bearing mounting cavity 223; the rotor shaft 11 is rotatably fixed in the stator housing 22 through two groups of fixed supports, thereby improving the installation stability of the rotor shaft 11.

[0045] In order to improve the overall rigidity of the rotor assembly, a set of preload springs 16 are provided between the fixed bearing 14 located on the lower side of the stator housing 22 and the rotor core 13. The two ends of the preload spring 16 are respectively against the fixed bearing 14 and the rotor core 13, thereby achieving axial preload of the fixed bearing 14, eliminating the clearance of the bearing, and improving the structural rigidity of the rotor.

[0046] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0047] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A simple structure sonic motor, characterized in that: include: rotor assembly, stator assembly, and coil assembly; The rotor assembly includes: a rotor shaft and a rotor core nested on one end of the rotor shaft; a pair of magnetic plates are provided on each side of the rotor core, wherein the two sets of magnetic plates on the same side have opposite magnetic poles, while the magnetic plates on opposite sides have the same magnetic poles; The stator assembly includes: a stator housing and a pair of stator cores mounted on the stator housing; the rotor core of the rotor assembly is arranged in the stator housing; The coil assembly includes: a coil support, a winding coil mounted on the coil support, and an I-shaped iron core; the coil support is plugged into and mated with the stator housing; the winding coil is wound around the I-shaped iron core, with the two ends of the I-shaped iron core forming coil magnetic extreme ends with opposite magnetic poles; The stator core is a bar-shaped structure, one end of the stator core is connected to the coil magnetic pole of the I-shaped core, and the other end of the stator core extends to the side end position of the magnetic sheet and fits in the gap with it.

2. The simple structure sonic motor according to claim 1, characterized in that: Both sides of the stator housing are respectively formed with plug-in arms extending in the direction of the coil support, and both sides of the stator housing are also formed with iron core mounting grooves arranged along the extending direction of the plug-in arms, and the stator iron core is installed in the iron core mounting grooves; The stator housing and the coil support are plugged together along the axial direction of the rotor shaft. Both sides of the stator housing are respectively formed with plug-in arms extending toward the coil support, while both sides of the coil support are respectively provided with plug-in slots for inserting the plug-in arms.

3. The simple structure sonic motor according to claim 2, characterized in that: The stator housing is also provided with an iron core mounting groove on both sides. The side position of one end of the iron core mounting groove is communicated with the internal mounting cavity of the stator housing, and the other end is arranged along the extension direction of the plug-in arm and connected to the plug-in groove. The stator core is a long strip structure, which is installed in the core mounting slot. A magnetic pole tooth portion is formed at one end of the stator core, which extends into the internal mounting cavity of the stator shell and cooperates with the magnetic sheet on the rotor core; the other end is a connecting portion, which extends along the core mounting slot to the plug-in slot and connects to the magnetic end of the I-shaped core.

4. A simple structure sonic motor according to any one of claims 1 or 2, characterized in that: The coil support comprises: two sets of support side parts arranged in parallel, a winding cavity for arranging the winding coil is formed between the two sets of support side parts, and a winding support rod connected to the two sides of the support side parts, and the winding coil is wound on the winding support rod; The iron core installation groove is arranged on the outer end surface of the side of the bracket, and an iron core installation cavity for installing the I-shaped iron core is formed in the winding support rod, and both ends of the iron core installation cavity are respectively communicated with the plug-in groove.

5. The simple structure sonic motor according to claim 2, characterized in that: A set of bearing mounting cavities are respectively provided at both axial ends of the stator housing, wherein fixed bearings are formed in the bearing mounting cavities; the rotor shaft is rotatably fixed in the stator housing through two sets of fixed supports.

Images