Motor structure of electric hair cutter

Abstract

The utility model discloses a motor structure of an electric hair cutter, which comprises a support frame, a motor assembly, a mounting frame and a rotor assembly, and further comprises two pairs of reset elastic sheets which are respectively made of elastic plastics; the bearing plate is arranged at the bottom of the supporting frame, and supporting plates are vertically and fixedly connected to the two sides of the bearing plate correspondingly; each pair of reset elastic pieces are symmetrically distributed on the two sides of the supporting frame respectively, the top ends of the reset elastic pieces are connected with the corresponding mounting frames in an integrated forming mode, the bottom ends of the reset elastic pieces are connected with the corresponding supporting plates in an integrated forming mode, and the mounting frames, the reset elastic pieces, the supporting plates and the bearing plates form an annular structure surrounding the supporting frame. According to the utility model, the production cost can be reduced, the connection stability of the elastic sheet and the support frame is improved, the structural strength is improved, the restoring force of the elastic sheet can be ensured, and the service life of the motor structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a motor structure of an electric hair clipper. Background Art

[0002] Electric hair clippers, also known as hair clippers, are a commonly used electric hair cutting and hairdressing tool. They are generally composed of pushing teeth, an adjustment handle, a shell and a motor assembly.

[0003] Chinese patent CN216490163U discloses a magnetic levitation motor, including a coil, a first spring sheet and a second spring sheet are arranged on both sides of the coil, a stator is fixedly arranged at the top of the coil, a first mover and a second mover are arranged above the stator, a first swinging member and a second swinging member are fixedly connected to the top of the first mover and the second mover, respectively, the first swinging member and the second swinging member are fixedly arranged inside a first bracket and a second bracket, respectively, and two sets of deflection limit members are arranged above the first bracket and the second bracket and on both sides of the first swinging member.

[0004] The first spring sheet and the second spring sheet in the related art are respectively made of metal spring sheets and fixed to the corresponding brackets by screws, which has a high production cost and a relatively low connection stability between the metal spring sheet and the bracket, thereby affecting the structural strength. At the same time, when the motor structure is used for a long time, that is, after the metal spring sheet is bent many times, the elastic force of the metal spring sheet will decrease, thereby affecting the reduction of the restoring force of the metal spring sheet, and further affecting the service life of the motor structure, which needs to be improved. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a motor structure for an electric hair clipper, which can reduce production costs, improve the connection stability between the spring piece and the support frame, thereby improving the structural strength, while also ensuring the restoring force of the spring piece and extending the service life of the motor structure.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: a motor structure of an electric hair clipper, comprising a support frame, a motor assembly is arranged on the inner side of the support frame, two mounting frames are arranged on the top of the support frame, and a mover assembly is arranged on each mounting frame, and the motor structure also includes:

[0007] There are two pairs of reset springs, each made of elastic plastic;

[0008] A receiving plate is arranged at the bottom of the supporting frame, and two sides of the receiving plate are respectively vertically fixedly connected with supporting plates;

[0009] Each pair of reset springs are symmetrically distributed on both sides of the support frame, and the top end of the reset spring is integrally connected with the corresponding mounting frame, and the bottom end is integrally connected with the corresponding support plate, so that the mounting frame, reset spring, support plate and receiving plate form an annular structure surrounding the support frame.

[0010] By adopting the above technical solution, the reset spring piece made of elastic plastic has lower production cost and can also be lightweight. At the same time, the mounting frame, the reset spring piece, the support plate and the receiving plate are integrally formed and connected, that is, the mounting frame and the reset spring piece and other components can be integrally injection molded, which can not only improve production efficiency, but also save costs, and there is no need for subsequent connection operations of the reset spring piece with the mounting frame and the support frame, saving manpower and material resources.

[0011] In addition, the mounting frame, reset spring, support plate and receiving plate form a ring structure that surrounds the support frame, making the connection between the reset spring and the support frame and other components more stable, thereby improving the structural strength. At the same time, this design, combined with the reset spring made of elastic plastic material, can not only ensure the restoring force of the reset spring, but also improve the durability of the reset spring, thereby extending the service life of the motor structure.

[0012] In a preferred example, the utility model can be further configured as follows: the thickness of the reset spring is smaller than the thickness of the support plate, the outer wall of the reset spring is flush with the outer wall of the support plate, and the bottom end position of the inner wall of the reset spring is connected to the support plate in an arc transition.

[0013] By adopting the above technical solution, the arc transition connection structure can play a good guiding and resetting role, that is, the reset spring is easier to bend toward the support frame, and when the reset spring is bent away from the support frame, the arc transition connection structure can give the reset spring a greater restoring force. When the reset spring swings to the left (or right), the reset spring located on the right side (or left side) of the support frame can be deformed smoothly. At this time, the reset spring located on the left side (or right side) of the support frame has a larger restoring force. This design allows the reset spring to swing smoothly and reset smoothly, thereby improving the stability of use.

[0014] In a preferred example, the utility model can be further configured as follows: both ends of the mounting frame extend outward and protrude from the outer side walls of the corresponding reset springs, and the top end position of the outer side walls of the reset springs is transitionally connected to the corresponding mounting frame arc.

[0015] By adopting the above technical solution, the reset spring can swing smoothly and reset smoothly, thereby improving the stability in use.

[0016] In a preferred example, the present invention can be further configured as follows: the receiving plate is detachably connected to the support frame.

[0017] By adopting the above technical solution, the reset spring piece can be replaced, which is convenient for users to perform maintenance and other related operations on the reset spring piece.

[0018] In a preferred example, the utility model can be further configured as follows: two sides of the upper surface of the receiving plate are respectively fixedly connected to limit blocks, and the side walls on the opposite sides of the two limit blocks are respectively abutted against the corresponding side walls of the support frame;

[0019] The side walls on the opposite sides of the two limit blocks are respectively fixedly connected with locking blocks, and locking grooves are respectively opened on both sides of the support frame, and the locking blocks can slide into the corresponding locking grooves;

[0020] The side walls on the opposite sides of the two limit blocks are respectively provided with a first arc-shaped locking groove, and the first locking groove is located above the locking block, and the two side walls of the support frame are respectively provided with a second locking groove connected to the corresponding locking groove, the first locking groove and the corresponding second locking groove openings are opposite to each other and form a locking hole, and locking columns are respectively tightly inserted in the two ends of the locking hole.

[0021] By adopting the above technical solution, when the annular structure formed by the mounting frame, the reset spring sheet, the support plate and the receiving plate is sleeved on the support frame, the locking block slides into the corresponding locking groove, and the first locking groove is gradually aligned with the corresponding second locking groove. When the side wall of the support frame is flush with the side wall of the annular structure, the two limit blocks abut against the corresponding side wall of the support frame, and the first locking groove is aligned with the corresponding second locking groove to form a locking hole. At this time, the locking column is inserted into the corresponding port of the locking hole to achieve the connection between the receiving plate and the support frame.

[0022] In a preferred example, the utility model can be further configured as follows: the motor structure further includes:

[0023] A pair of protective cover plates are provided and connected to both sides of the support frame by a plurality of fastening bolts, and each of the protective cover plates is provided with a clearance opening aligned with the motor assembly;

[0024] The protective top cover is detachably connected to the top of the two protective cover plates, and the protective top cover and the two protective cover plates jointly shield and protect the top position of the support frame.

[0025] By adopting the above technical solution, the top position of the support frame is shielded and protected by the protective top cover and the two protective cover plates, reducing the risk of impurities such as dust, broken hair or dandruff entering the interior of the support frame, thereby playing a good protective role.

[0026] In a preferred example, the utility model can be further configured as follows: the two locking columns in each locking hole are respectively fixed on the corresponding protective cover plate, and when the protective cover plate is fixed on the support frame, the locking column is tightly inserted into the corresponding port of the locking hole.

[0027] By adopting the above technical solution, when the protective cover is fixed on the support frame, the locking column can be automatically inserted into the corresponding port of the locking hole. That is, when the user fixes the protective cover, the receiving plate and the support frame can be fixed synchronously, which not only improves the operational convenience but also improves the assembly efficiency.

[0028] In a preferred example, the utility model can be further configured as follows: a protective rod is provided on the inner side of the clearance opening, and both ends of the protective rod are respectively connected to the corresponding protective cover plates in an integral manner to protect the motor assembly.

[0029] By adopting the above technical solution, the structural strength of the protective cover can be improved and the protection of the motor assembly can be achieved.

[0030] In a preferred example, the utility model can be further configured as follows: a pair of limit plates are integrally formed and connected to both sides of the protective top cover, and each of the limit plates is connected to the corresponding protective cover plate via a limit screw.

[0031] By adopting the above technical solution, the protective top cover and the protective cover plate can be quickly connected, thereby improving assembly efficiency.

[0032] In a preferred example, the utility model can be further configured as follows: a pair of limit grooves are respectively provided at the top ends of the two protective cover plates, and the limit plates can be inserted into the corresponding limit grooves from top to bottom, the limit screws are connected to the corresponding limit plates, and the bottoms of the limit grooves are provided with fastening grooves for threaded engagement with the corresponding limit screws.

[0033] By adopting the above technical solution, a stable connection between the protective top cover and the two protective cover plates is achieved, and the four limit plates can limit the two protective cover plates to improve the stability and strength of the connection structure between the protective top cover and the two protective cover plates. At the same time, the cooperation of the limit plates and the limit grooves can realize the rapid determination of the installation position of the protective top cover and the two protective cover plates, so that the staff can perform assembly operations and improve production efficiency.

[0034] In summary, the utility model has the following beneficial effects:

[0035] The reset spring made of elastic plastic has lower production cost and can also be lightweight. The mounting frame, reset spring, support plate and receiving plate are integrally formed and connected, that is, the mounting frame and the reset spring and other components can be integrally injection molded, which can not only improve production efficiency, but also save costs, and there is no need for subsequent connection operations of the reset spring with the mounting frame and the support frame, saving manpower and material resources.

[0036] The mounting frame, reset spring, support plate and receiving plate form a ring structure that embraces the support frame, making the connection between the reset spring and the support frame and other components more stable, thereby improving the structural strength. At the same time, this design, combined with the reset spring made of elastic plastic material, can not only ensure the restoring force of the reset spring, but also improve the durability of the reset spring, thereby extending the service life of the motor structure.

[0037] The arc transition connection structure between the return spring, the support plate and the mounting frame can play a good guiding and resetting role, that is, the return spring is easier to bend toward the support frame, and when the return spring is bent away from the support frame, the arc transition connection structure can give the return spring a greater return force, so that the return spring can swing smoothly and reset smoothly, thereby improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the embodiment;

[0039] Figure 2 It is a structural schematic diagram of the supporting frame and other components in the embodiment;

[0040] Figure 3 is a front view of an embodiment;

[0041] Figure 4 yes Figure 3 A magnified schematic diagram of the middle A area;

[0042] Figure 5 is an exploded view of an embodiment.

[0043] Figure numerals: 1. support frame; 2. motor assembly; 3. mounting frame; 4. mover assembly; 5. reset spring; 6. receiving plate; 7. support plate; 8. limit block; 9. locking block; 10. locking groove; 11. first locking groove; 12. second locking groove; 13. locking hole; 14. locking column; 15. protective cover plate; 16. clearance port; 17. protective top cover; 18. protective rod; 19. limit plate; 20. limit groove; 21. limit screw; 22. fastening groove. DETAILED DESCRIPTION

[0044] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0045] Reference Figure 1 , Figure 2 A motor structure of an electric hair clipper includes a support frame 1, a motor assembly 2 is arranged on the inner side of the support frame 1, two mounting frames 3 are arranged on the top of the support frame 1, and a mover assembly 4 is arranged on each mounting frame 3.

[0046] Reference Figure 1 , Figure 2 The motor structure also includes two pairs of reset springs 5, which are made of elastic plastics such as PVC plastic, PC plastic or TPEE. A receiving plate 6 is provided at the bottom of the support frame 1, and support plates 7 are integrally formed and connected to both sides of the receiving plate 6, and the support plates 7 are vertically arranged.

[0047] Reference Figure 1 , Figure 2 Each pair of reset springs 5 ​​are symmetrically distributed on both sides of the support frame 1, and the top of the reset spring 5 is integrally connected with the corresponding mounting frame 3, and the bottom end is integrally connected with the corresponding support plate 7, that is, the mounting frame 3, the reset spring 5, the support plate 7 and the receiving plate 6 are injection molded with elastic plastic material to form an annular structure surrounding the support frame 1.

[0048] The reset spring piece 5 made of elastic plastic has lower production cost and can also be lightweight. At the same time, the mounting frame 3, the reset spring piece 5, the support plate 7 and the receiving plate 6 are integrally injection molded, which can not only improve production efficiency, but also save costs, and there is no need for subsequent connection operations of the reset spring piece 5 with the mounting frame 3 and the support frame 1, saving manpower and material resources.

[0049] Moreover, the mounting frame 3, the reset spring 5, the support plate 7 and the receiving plate 6 form an annular structure surrounding the support frame 1, so that the connection between the reset spring 5 and the support frame 1 and other components is more stable, thereby improving the structural strength. At the same time, this design, combined with the reset spring 5 made of elastic plastic material, can not only ensure the restoring force of the reset spring 5, but also improve the durability of the reset spring 5, thereby extending the service life of the motor structure.

[0050] Reference Figure 3 , Figure 4 The thickness of the reset spring 5 is less than that of the support plate 7, the outer wall of the reset spring 5 is flush with the outer wall of the support plate 7, and the bottom end of the inner wall of the reset spring 5 is connected to the support plate 7 in an arc transition. Both ends of the mounting frame 3 extend outward and protrude from the outer wall of the corresponding reset spring 5, and the top end of the outer wall of the reset spring 5 is connected to the corresponding mounting frame 3 in an arc transition.

[0051] The arc transition connection structure can play a good guiding and resetting role, that is, the reset spring piece 5 is easier to bend toward the support frame 1, and when the reset spring piece 5 bends away from the support frame 1, the arc transition connection structure can give the reset spring piece 5 a greater restoring force. When the reset spring piece 5 swings to the left (or right), the reset spring piece 5 located on the right side (or left side) of the support frame 1 can be deformed smoothly. At this time, the reset spring piece 5 located on the left side (or right side) of the support frame 1 has a greater restoring force. This design allows the reset spring piece 5 to swing smoothly and reset smoothly, thereby improving the stability of use.

[0052] Reference Figure 3 , Figure 4 The receiving plate 6 is detachably connected to the support frame 1, so that the reset spring piece 5 can be replaced, which is convenient for the user to maintain the reset spring piece 5 and other related operations. The two sides of the upper surface of the receiving plate 6 are fixedly connected to the limit blocks 8, and the side walls on the opposite sides of the two limit blocks 8 are respectively abutted against the corresponding side walls of the support frame 1. The side walls on the opposite sides of the two limit blocks 8 are respectively fixedly connected with locking blocks 9, and locking grooves 10 are respectively opened on both sides of the support frame 1, and the locking blocks 9 can slide into the corresponding locking grooves 10.

[0053] Reference Figure 3 , Figure 4 The side walls on the opposite sides of the two limit blocks 8 are respectively provided with arc-shaped first locking grooves 11, and the first locking grooves 11 are located above the locking blocks 9. The two side walls of the support frame 1 are respectively provided with second locking grooves 12 connected with the corresponding locking grooves 10, and the first locking grooves 11 and the corresponding second locking grooves 12 are opened opposite to each other to form a locking hole 13, and the two ends of the locking hole 13 are respectively tightly inserted with locking columns 14.

[0054] When the annular structure formed by the mounting frame 3, the reset spring 5, the support plate 7 and the receiving plate 6 is sleeved on the support frame 1, the locking block 9 slides into the corresponding locking groove 10. At this time, the two limit blocks 8 are against the corresponding side walls of the support frame 1, and the first locking groove 11 is gradually aligned with the corresponding second locking groove 12. When the side wall of the support frame 1 is flush with the side wall of the annular structure, the first locking groove 11 is aligned with the corresponding second locking groove 12 to form a locking hole 13. At this time, the locking column 14 is inserted into the corresponding port of the locking hole 13 to achieve the connection between the receiving plate 6 and the support frame 1.

[0055] Reference Figure 1 , Figure 5The motor structure further includes a pair of protective cover plates 15, which are connected to both sides of the support frame 1 by a plurality of fastening bolts, and each protective cover plate 15 is provided with a clearance opening 16 aligned with the motor assembly 2. At the same time, the top of the pair of protective cover plates 15 is detachably connected with a protective top cover 17, and the protective top cover 17 and the pair of protective cover plates 15 can jointly shield and protect the top position of the support frame 1, so as to reduce the risk of impurities such as dust, broken hair or dandruff entering the interior of the support frame 1, thereby playing a good protective role.

[0056] Reference Figure 3 , Figure 5 The two locking columns 14 in each locking hole 13 are respectively fixed on the corresponding protective cover plate 15. When the protective cover plate 15 is fixed on the support frame 1, the locking column 14 can be automatically inserted into the corresponding port of the locking hole 13. That is, when the user fixes the protective cover plate 15, the receiving plate 6 and the support frame 1 can be fixed synchronously, which not only improves the operational convenience, but also improves the assembly efficiency.

[0057] Reference Figure 5 A protective rod 18 is provided on the inner side of the clearance opening 16, and both ends of the protective rod 18 are integrally connected with the corresponding protective cover plate 15, which can not only improve the structural strength of the protective cover plate 15, but also realize the protection of the motor assembly 2.

[0058] Reference Figure 5 A pair of limiting plates 19 are integrally formed and connected to both sides of the protective top cover 17, and a pair of limiting grooves 20 are respectively provided at the top ends of the two protective cover plates 15, and the limiting plates 19 can be inserted into the corresponding limiting grooves 20 from top to bottom. A limiting screw 21 is respectively threadedly connected to each limiting plate 19, and a fastening groove 22 for threading the corresponding limiting screw 21 is provided at the bottom of the limiting groove 20.

[0059] This design can achieve a stable connection between the protective top cover 17 and the two protective cover plates 15, and the four limiting plates 19 can limit the two protective cover plates 15 to improve the stability and strength of the connection structure between the protective top cover 17 and the two protective cover plates 15. At the same time, the cooperation between the limiting plates 19 and the limiting grooves 20 can achieve a quick determination of the installation positions of the protective top cover 17 and the two protective cover plates 15, so that the staff can perform assembly operations and improve production efficiency.

[0060] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A motor structure of an electric hair clipper, comprising a support frame (1), a motor assembly (2) being arranged on the inner side of the support frame (1), two mounting frames (3) being arranged on the top of the support frame (1), a mover assembly (4) being arranged on each mounting frame (3), characterized in that: The motor structure also includes: Two pairs of reset springs (5) are provided and are respectively made of elastic plastic; A receiving plate (6) is arranged at the bottom of the support frame (1), and two sides of the receiving plate (6) are respectively vertically fixedly connected with supporting plates (7); Each pair of the reset springs (5) are symmetrically distributed on both sides of the support frame (1), and the top ends of the reset springs (5) are integrally connected to the corresponding mounting frame (3), and the bottom ends are integrally connected to the corresponding support plate (7), so that the mounting frame (3), the reset springs (5), the support plate (7) and the receiving plate (6) form an annular structure surrounding the support frame (1).

2. The motor structure according to claim 1, characterized in that: The thickness of the reset spring (5) is smaller than the thickness of the support plate (7), the outer wall of the reset spring (5) is flush with the outer wall of the support plate (7), and the bottom end of the inner wall of the reset spring (5) is connected to the support plate (7) in an arc transition.

3. The motor structure according to claim 2, characterized in that: Both ends of the mounting frame (3) extend outward and protrude from the outer side wall of the corresponding reset spring sheet (5), and the top end position of the outer side wall of the reset spring sheet (5) is connected to the corresponding mounting frame (3) in an arc transition.

4. The motor structure according to claim 1, characterized in that: The receiving plate (6) is detachably connected to the support frame (1).

5. The motor structure according to claim 4, characterized in that: The two sides of the upper surface of the receiving plate (6) are respectively fixedly connected to limit blocks (8), and the side walls on the opposite sides of the two limit blocks (8) are respectively in contact with the corresponding side walls of the support frame (1); The side walls on opposite sides of the two limit blocks (8) are respectively fixedly connected with locking blocks (9); locking grooves (10) are respectively provided on both sides of the support frame (1), and the locking blocks (9) can slide into the corresponding locking grooves (10); The side walls on opposite sides of the two limit blocks (8) are respectively provided with arc-shaped first locking grooves (11), and the first locking grooves (11) are located above the locking blocks (9). The two side walls of the support frame (1) are respectively provided with second locking grooves (12) connected with the corresponding locking grooves (10). The openings of the first locking grooves (11) and the corresponding second locking grooves (12) are opposite to each other and form a locking hole (13), and locking columns (14) are respectively tightly inserted into the two ends of the locking hole (13).

6. The motor structure according to claim 5, characterized in that: The motor structure also includes: A pair of protective cover plates (15) are provided and connected to two sides of the support frame (1) via a plurality of fastening bolts, and each of the protective cover plates (15) is provided with a clearance opening (16) aligned with the motor assembly (2); The protective top cover (17) is detachably connected to the top of the two protective cover plates (15), and the protective top cover (17) and the two protective cover plates (15) together shield and protect the top position of the support frame (1).

7. The motor structure according to claim 6, characterized in that: The two locking columns (14) in each locking hole (13) are respectively fixed on the corresponding protective cover plate (15); when the protective cover plate (15) is fixed on the support frame (1), the locking columns (14) are tightly inserted into the corresponding ports of the locking holes (13).

8. The motor structure according to claim 6, characterized in that: A protection rod (18) is provided on the inner side of the clearance opening (16), and both ends of the protection rod (18) are respectively connected to the corresponding protection cover plate (15) in one piece, so as to protect the motor assembly (2).

9. The motor structure according to claim 6, characterized in that: A pair of limiting plates (19) are integrally formed and connected to both sides of the protective top cover (17), and each limiting plate (19) is connected to the corresponding protective cover plate (15) via a limiting screw (21).

10. The motor structure according to claim 9, characterized in that: A pair of limiting grooves (20) are respectively arranged at the top ends of the two protective cover plates (15), and the limiting plates (19) can be inserted into the corresponding limiting grooves (20) from top to bottom, the limiting screws (21) are connected to the corresponding limiting plates (19), and the bottoms of the limiting grooves (20) are provided with fastening grooves (22) for threaded engagement with the corresponding limiting screws (21).

Images