Motor structure with sweeping vibration function

Abstract

The utility model relates to the technical field of motors, in particular to a motor structure with a sweeping vibration function, which comprises a stator and a rotor. The stator comprises a first magnetic arm, a first magnetic conductive part arranged at one end of the first magnetic arm and a first positioning part arranged at the other end of the first magnetic arm; the stator further comprises a second magnetic arm, a second magnetic conductive part arranged at one end of the second magnetic arm and a second positioning part arranged at the other end of the second magnetic arm; a rotating cavity is formed between the first magnetic conductive part and the second magnetic conductive part in a surrounding manner; the rotor is rotationally arranged in the rotating cavity; a magnetic steel assembly is arranged outside the rotor. According to the utility model, the first winding arm is sleeved outside the first magnetic arm, and the second winding arm is sleeved outside the second magnetic arm, and the gaps are arranged between the first magnetic conductive part and the first positioning part and between the second magnetic conductive part and the second positioning part. Therefore, the coil can be directly wound on the first winding arm, the second winding arm, the first magnetic arm and the second magnetic arm, and the winding efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor structure with a sweeping vibration function. Background Art

[0002] Vibrating electric toothbrushes have gained widespread recognition and popularity in the market due to their minimal wear on teeth and gum damage. Compared to traditional manual toothbrushes, vibrating electric toothbrushes utilize a built-in vibration motor to generate high-frequency vibrations perpendicular to the length of the handle, resulting in more efficient cleaning. This high-frequency vibration effectively removes plaque and food debris from tooth surfaces while reducing gum irritation.

[0003] Currently, there are motors on the market that simulate manual toothbrushing, but there are some problems with these motors. For example, the Chinese patent application number CN201920342110.4 has a winding arm arranged inside the stator. Therefore, when winding the wire, it is necessary to insert the stator and wind the wire inside the stator, which makes the winding complicated and troublesome. Utility Model Content

[0004] The purpose of the utility model is to provide a motor structure with a sweeping vibration function in view of the above-mentioned deficiencies in the prior art.

[0005] The purpose of the utility model is achieved through the following technical solutions: A motor structure with a sweeping vibration function, comprising a stator and a rotor;

[0006] The stator includes a first magnetic arm, a first magnetic conductive portion provided at one end of the first magnetic arm, and a first positioning portion provided at the other end of the first magnetic arm; the stator also includes a second magnetic arm, a second magnetic conductive portion provided at one end of the second magnetic arm, and a second positioning portion provided at the other end of the second magnetic arm;

[0007] A rotating cavity is formed between the first magnetic conductive portion and the second magnetic conductive portion; the rotor rotates in the rotating cavity; a magnetic steel assembly is provided outside the rotor;

[0008] A bobbin is disposed outside the stator; the bobbin includes a first winding arm and a second winding arm; the first winding arm is sleeved outside the first magnetic arm; and the second winding arm is sleeved outside the second magnetic arm.

[0009] The present invention is further configured such that the wire rack further comprises a first extension portion provided at one end of the first winding arm, a second extension portion provided at one end of the second winding arm, and an intermediate fixing portion provided between the first extension portion and the second extension portion;

[0010] The first extending portion is sleeved outside the first positioning portion; the second extending portion is sleeved outside the second positioning portion; and the intermediate fixing portion is sleeved outside the first magnetic conductive portion and the second magnetic conductive portion.

[0011] The present invention is further configured such that a first opening is provided at an end portion of the first extension portion; a second opening is provided at an end portion of the second extension portion; the first positioning portion protrudes out of the first opening; and the second positioning portion protrudes out of the second opening.

[0012] The present invention is further configured such that the cross-sectional shape of the first extension portion, the cross-sectional shape of the second extension portion, the cross-sectional shape of the first positioning portion, and the cross-sectional shape of the second positioning portion are all arc-shaped.

[0013] The present invention is further configured such that the stator and the bobbin are integrally formed by plastic coating.

[0014] The present invention is further configured such that the first magnetic conductive portion includes a first left magnetic tooth provided on one side of the first magnetic arm and a first right magnetic tooth provided on the other side of the first magnetic arm; the second magnetic conductive portion includes a second left magnetic tooth provided on one side of the second magnetic arm and a second right magnetic tooth provided on the other side of the second magnetic arm.

[0015] The present invention is further configured such that the magnetic steel assembly includes a first magnetic steel, a second magnetic steel, a third magnetic steel and a fourth magnetic steel arranged along the length direction of the rotor; the first magnetic steel, the second magnetic steel, the third magnetic steel and the fourth magnetic steel are respectively arranged corresponding to the first left magnetic tooth, the first right magnetic tooth, the second left magnetic tooth and the second right magnetic tooth.

[0016] The present invention is further configured such that the first magnetic steel, the second magnetic steel, the third magnetic steel and the fourth magnetic steel have the same structure; the first magnetic arm and the second magnetic arm have the same structure; the first left magnetic tooth, the first right magnetic tooth, the second left magnetic tooth and the second right magnetic tooth have the same structure.

[0017] The present invention is further configured such that the cross-sectional shapes of the first magnetic steel, the second magnetic steel, the third magnetic steel and the fourth magnetic steel are all fan-shaped; the cross-sectional shape of the rotor is circular; the first magnetic steel, the second magnetic steel, the third magnetic steel and the fourth magnetic steel are respectively arranged concentrically with the rotor.

[0018] The present invention is further configured such that the motor structure with sweeping vibration function further comprises a shell; the stator and the bobbin are both sleeved in the shell; the rotor is connected to an output shaft; and the output shaft protrudes out of the shell.

[0019] The beneficial effects of the present invention are as follows: the present invention arranges the first winding arm outside the first magnetic arm, and arranges the second winding arm outside the second magnetic arm, and since gaps are provided between the first magnetic conductive portion and the first positioning portion, and between the second magnetic conductive portion and the second positioning portion, the coil can be directly wound on the first winding arm, the second winding arm, the first magnetic arm and the second magnetic arm, thereby effectively improving the winding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without making any creative effort.

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the utility model after the shell is hidden;

[0023] Figure 3 It is a structural exploded view of the utility model;

[0024] Figure 4 This is a cross-sectional view of the utility model after the housing is hidden;

[0025] Figure 5 It is a structural diagram of the wire rack of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the stator of the utility model;

[0027] Among them: 1. stator; 11. rotating cavity; 2. rotor; 31. first magnetic arm; 32. second magnetic arm; 41. first positioning part; 42. second positioning part; 5. first magnetic conductive part; 51. first left magnetic tooth; 52. first right magnetic tooth; 6. second magnetic conductive part; 61. second left magnetic tooth; 62. second right magnetic tooth; 7. bobbin; 71. first winding arm; 72. second winding arm; 73. first extension part; 74. second extension part; 75. intermediate fixing part; 76. first opening; 77. second opening; 81. first magnet; 82. second magnet; 83. third magnet; 84. fourth magnet; 9. outer shell; 91. output shaft. DETAILED DESCRIPTION

[0028] The present invention will be further described with reference to the following embodiments.

[0029] Depend on Figures 1 to 6 It can be seen that the motor structure with a sweep vibration function described in this embodiment includes a stator 1 and a rotor 2;

[0030] The stator 1 includes a first magnetic arm 31, a first magnetic conductive portion 5 provided at one end of the first magnetic arm 31, and a first positioning portion 41 provided at the other end of the first magnetic arm 31; the stator 1 also includes a second magnetic arm 32, a second magnetic conductive portion 6 provided at one end of the second magnetic arm 32, and a second positioning portion 42 provided at the other end of the second magnetic arm 32;

[0031] A rotating cavity 11 is formed between the first magnetic conductive portion 5 and the second magnetic conductive portion 6; the rotor 2 is rotatably disposed in the rotating cavity 11; a magnetic steel assembly is disposed outside the rotor 2;

[0032] The stator 1 is provided with a bobbin 7 on its outer surface. The bobbin 7 includes a first winding arm 71 and a second winding arm 72 . The first winding arm 71 is sleeved on the outside of the first magnetic arm 31 . The second winding arm 72 is sleeved on the outside of the second magnetic arm 32 .

[0033] Specifically, when the motor structure with a sweeping vibration function described in this embodiment is used, the first winding arm 71 is arranged outside the first magnetic arm 31, and the second winding arm 72 is arranged outside the second magnetic arm 32. Since there are gaps between the first magnetic conductive part 5 and the first positioning part 41 and between the second magnetic conductive part 6 and the second positioning part 42, the coil can be directly wound on the first winding arm 71, the second winding arm 72, the first magnetic arm 31 and the second magnetic arm 32, thereby effectively improving the winding efficiency.

[0034] In the motor structure with a sweeping vibration function described in this embodiment, the bobbin 7 further includes a first extension portion 73 provided at one end of the first winding arm 71, a second extension portion 74 provided at one end of the second winding arm 72, and an intermediate fixing portion 75 provided between the first extension portion 73 and the second extension portion 74.

[0035] The first extending portion 73 is sleeved outside the first positioning portion 41 ; the second extending portion 74 is sleeved outside the second positioning portion 42 ; and the intermediate fixing portion 75 is sleeved outside the first magnetic conductive portion 5 and the second magnetic conductive portion 6 .

[0036] Specifically, through the above arrangement, the wire rack 7 can protect the first positioning portion 41 , the second positioning portion 42 , the first magnetic conductive portion 5 and the second magnetic conductive portion 6 , making the overall structure more stable and reliable.

[0037] In the motor structure with sweeping vibration function described in this embodiment, a first opening 76 is provided at the end of the first extension portion 73; a second opening 77 is provided at the end of the second extension portion 74; the first positioning portion 41 protrudes out of the first opening 76; and the second positioning portion 42 protrudes out of the second opening 77.

[0038] Specifically, through the above arrangement, the first positioning portion 41 and the second positioning portion 42 of the stator 1 are respectively positioned against the inner wall of the housing 9 , making the overall structure more stable and reliable.

[0039] In the motor structure with a sweeping vibration function described in this embodiment, the cross-sectional shapes of the first extension portion 73, the second extension portion 74, the first positioning portion 41, and the second positioning portion 42 are all arcuate. This arrangement facilitates the first positioning portion 41 and the second positioning portion 42 of the stator 1 to engage with the inner wall of the housing 9.

[0040] In the motor structure with a sweeping vibration function described in this embodiment, the stator 1 and the bobbin 7 are integrally formed by plastic coating. The above arrangement facilitates the production of the stator 1 and the bobbin 7.

[0041] In the motor structure with a sweeping vibration function described in this embodiment, the first magnetic conductive portion 5 includes a first left magnetic tooth 51 provided on one side of the first magnetic arm 31 and a first right magnetic tooth 52 provided on the other side of the first magnetic arm 31; the second magnetic conductive portion 6 includes a second left magnetic tooth 61 provided on one side of the second magnetic arm 32 and a second right magnetic tooth 62 provided on the other side of the second magnetic arm 32. In the motor structure with a sweeping vibration function described in this embodiment, the magnetic steel assembly includes a first magnetic steel 81, a second magnetic steel 82, a third magnetic steel 83, and a fourth magnetic steel 84 arranged along the length direction of the rotor 2; the first magnetic steel 81, the second magnetic steel 82, the third magnetic steel 83, and the fourth magnetic steel 84 are respectively provided corresponding to the first left magnetic tooth 51, the first right magnetic tooth 52, the second left magnetic tooth 61, and the second right magnetic tooth 62.

[0042] Specifically, by passing an alternating current through the coil, the magnetism at the upper and lower ends of the first magnetic arm 31 and the magnetism at the upper and lower ends of the second magnetic arm 32 are continuously changed; in addition, through the cooperation of the first magnetic steel 81, the second magnetic steel 82, the third magnetic steel 83, the fourth magnetic steel 84, the first left magnetic tooth 51, the first right magnetic tooth 52, the second left magnetic tooth 61 and the second right magnetic tooth 62, the rotor 2 can continuously perform a small reciprocating vibration while performing a large-angle reciprocating swing, thereby simulating the sweeping vibration action of human hands when brushing teeth.

[0043] In this embodiment, the motor structure with a sweeping vibration function is described. The first magnetic steel 81, the second magnetic steel 82, the third magnetic steel 83, and the fourth magnetic steel 84 have the same structure; the first magnetic arm 31 and the second magnetic arm 32 have the same structure; and the first left magnetic tooth 51, the first right magnetic tooth 52, the second left magnetic tooth 61, and the second right magnetic tooth 62 have the same structure. This arrangement enables the motor as a whole to stably achieve the sweeping vibration function.

[0044] In the motor structure with a sweeping vibration function described in this embodiment, the first magnetic steel 81, the second magnetic steel 82, the third magnetic steel 83, and the fourth magnetic steel 84 are all sector-shaped in cross-section; the rotor 2 is circular in cross-section; and the first magnetic steel 81, the second magnetic steel 82, the third magnetic steel 83, and the fourth magnetic steel 84 are respectively arranged concentrically with the rotor 2. This arrangement enables the motor as a whole to stably achieve the sweeping vibration function.

[0045] The motor structure with a sweeping vibration function described in this embodiment further includes a housing 9; the stator 1 and the bobbin 7 are both sleeved within the housing 9; the rotor 2 is connected to an output shaft 91; the output shaft 91 protrudes from the housing 9. This arrangement protects the stator 1, rotor 2, and other components.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A motor structure with a sweeping vibration function, characterized in that: It comprises a stator (1) and a rotor (2); The stator (1) comprises a first magnetic arm (31), a first magnetic conductive portion (5) provided at one end of the first magnetic arm (31), and a first positioning portion (41) provided at the other end of the first magnetic arm (31); the stator (1) further comprises a second magnetic arm (32), a second magnetic conductive portion (6) provided at one end of the second magnetic arm (32), and a second positioning portion (42) provided at the other end of the second magnetic arm (32); A rotating cavity (11) is enclosed and formed between the first magnetic conductive portion (5) and the second magnetic conductive portion (6); the rotor (2) is rotatably arranged in the rotating cavity (11); and a magnetic steel assembly is provided outside the rotor (2); The stator (1) is provided with a bobbin (7) on its outer shell; the bobbin (7) comprises a first winding arm (71) and a second winding arm (72); the first winding arm (71) is sleeved outside the first magnetic arm (31); the second winding arm (72) is sleeved outside the second magnetic arm (32).

2. The motor structure with sweep vibration function according to claim 1, characterized in that: The wire rack (7) further comprises a first extension portion (73) provided at one end of the first winding arm (71), a second extension portion (74) provided at one end of the second winding arm (72), and an intermediate fixing portion (75) provided between the first extension portion (73) and the second extension portion (74); The first extension portion (73) is sleeved outside the first positioning portion (41); the second extension portion (74) is sleeved outside the second positioning portion (42); and the intermediate fixing portion (75) is sleeved outside the first magnetic conductive portion (5) and the second magnetic conductive portion (6).

3. The motor structure with sweep vibration function according to claim 2, characterized in that: The end of the first extension portion (73) is provided with a first opening (76); the end of the second extension portion (74) is provided with a second opening (77); the first positioning portion (41) protrudes out of the first opening (76); and the second positioning portion (42) protrudes out of the second opening (77).

4. The motor structure with sweep vibration function according to claim 2, characterized in that: The cross-sectional shape of the first extension portion (73), the cross-sectional shape of the second extension portion (74), the cross-sectional shape of the first positioning portion (41), and the cross-sectional shape of the second positioning portion (42) are all arc-shaped.

5. The motor structure with sweep vibration function according to claim 1, characterized in that: The stator (1) and the bobbin (7) are integrally formed by plastic coating.

6. The motor structure with sweep vibration function according to claim 1, characterized in that: The first magnetic conductive portion (5) includes a first left magnetic tooth (51) provided on one side of the first magnetic arm (31) and a first right magnetic tooth (52) provided on the other side of the first magnetic arm (31); the second magnetic conductive portion (6) includes a second left magnetic tooth (61) provided on one side of the second magnetic arm (32) and a second right magnetic tooth (62) provided on the other side of the second magnetic arm (32).

7. The motor structure with sweep vibration function according to claim 6, characterized in that: The magnetic steel assembly comprises a first magnetic steel (81), a second magnetic steel (82), a third magnetic steel (83) and a fourth magnetic steel (84) arranged along the length direction of the rotor (2); the first magnetic steel (81), the second magnetic steel (82), the third magnetic steel (83) and the fourth magnetic steel (84) are respectively arranged corresponding to the first left magnetic tooth (51), the first right magnetic tooth (52), the second left magnetic tooth (61) and the second right magnetic tooth (62).

8. The motor structure with sweep vibration function according to claim 7, characterized in that: The first magnetic steel (81), the second magnetic steel (82), the third magnetic steel (83) and the fourth magnetic steel (84) have the same structure; the first magnetic arm (31) and the second magnetic arm (32) have the same structure; the first left magnetic tooth (51), the first right magnetic tooth (52), the second left magnetic tooth (61) and the second right magnetic tooth (62) have the same structure.

9. The motor structure with sweep vibration function according to claim 7, characterized in that: The cross-sectional shapes of the first magnetic steel (81), the second magnetic steel (82), the third magnetic steel (83) and the fourth magnetic steel (84) are all fan-shaped; the cross-sectional shape of the rotor (2) is circular; the first magnetic steel (81), the second magnetic steel (82), the third magnetic steel (83) and the fourth magnetic steel (84) are respectively arranged concentrically with the rotor (2).

10. The motor structure with sweep vibration function according to claim 1, characterized in that: The motor structure with a sweeping vibration function further comprises a housing (9); the stator (1) and the bobbin (7) are both sleeved in the housing (9); the rotor (2) is connected to an output shaft (91); and the output shaft (91) protrudes out of the housing (9).

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