Split type reciprocating magnetic pendulum motor and hair trimmer

Abstract

The utility model relates to the technical field of motors, and discloses a split type reciprocating magnetic pendulum motor and a hair trimmer, the split type reciprocating magnetic pendulum motor comprises a swing frame assembly and a driving assembly, the swing frame assembly and the driving assembly are arranged in a split mode, the swing frame assembly comprises a mounting frame, a swing frame and a swing arm, the swing arm is connected between the mounting frame and the swing frame, and the swing frame is connected with the driving assembly. One end of each swing arm is connected with the mounting frame, the other end of each swing arm is connected with the swing frame, the two swing arms are symmetrically arranged, the mounting frame and the swing frame are both arranged between the two swing arms, and the driving assembly is arranged on the side, away from the mounting frame, of the swing frame. According to the utility model, the swing frame assembly and the driving assembly are separately arranged, so that the structural layout during design is facilitated, and the assembly cost is low; the driving assembly is arranged on the side, away from the mounting frame, of the swing frame, the swing arm is not prone to bending deformation due to magnetic attraction force borne by the swing arm, and therefore the problems that the swing arm cannot swing normally, noise is increased and the like due to bending deformation of the swing arm are solved, and the service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a split-type reciprocating magnetic swing motor and a hair trimmer. Background Art

[0002] At present, when using a hair clipper, the moving blade needs to reciprocate at a high frequency, and this process requires the help of a motor and a transmission structure. In view of the above description, the commonly used transmission structure is usually a motor driving an eccentric wheel to rotate at high speed. The eccentric wheel is connected to the end of the blade holder, thereby driving the blade to reciprocate at a high frequency. The defects are: 1. There is friction between the eccentric wheel and the blade holder. In the use scenario of high-frequency rotation, the rotating connection point between the eccentric wheel and the blade holder is worn faster, and frequent replacement is required, which increases the cost; 2. The use of the eccentric wheel drive structure requires a larger accommodating cavity inside the hair clipper shell, which increases the volume of the hair clipper itself. Therefore, a magnetic induction yaw motor was born. It changes the layout between the rotor and the stator. By applying the magnetic induction principle, it can directly drive the two swinging parts to perform staggered reciprocating movement. In addition, during the reciprocating movement, the swing arm (or spring) and the yaw limiter will also swing with it to improve the stability of the staggered reciprocating movement, effectively solving the technical problems caused by the use of the eccentric wheel structure in the cutter head transmission structure.

[0003] However, in some existing reciprocating magnetic swing motors, the swing frame assembly and the drive assembly are assembled into one piece, which is troublesome to assemble, inefficient, and has high production costs. In addition, the assembly positions of the two parts are fixed, which is not convenient for space layout and utilization during design. In addition, the swing arm and the drive assembly of the existing swing frame assembly are located in the same direction of the magnet, which causes the magnetic attraction force on the swing arm to easily cause it to bend and deform. After the swing arm is bent, it affects the normal swing of the swing frame assembly, resulting in problems such as abnormal swinging, increased noise, and a short service life. Utility Model Content

[0004] In order to solve at least one aspect of the above problems, the present invention provides a split reciprocating magnetic swing motor, comprising: a swing frame assembly and a drive assembly, the swing frame assembly and the drive assembly are separately arranged, the swing frame assembly comprises a mounting frame, a swing frame and a swing arm, the swing arm is connected between the mounting frame and the swing frame, one end of the swing arm is connected to the mounting frame, and the other end of the swing arm is connected to the swing frame, and two swing arms are symmetrically arranged, the mounting frame and the swing frame are both placed between the two swing arms, the drive assembly is placed on the side of the swing frame away from the mounting frame, and a magnet is fixedly provided on the side of the swing frame close to the drive assembly; the utility model, the swing frame assembly and the drive assembly are separately arranged, which is convenient for structural layout during design and has low assembly cost; the drive assembly is placed on the side of the swing frame away from the mounting frame, and the magnetic attraction force applied to the swing arm is not easy to cause it to bend and deform, thereby avoiding problems such as abnormal swinging and increased noise due to bending and deformation of the swing arm, and long service life.

[0005] Optionally, a gap groove is provided on the swing arm, and the swing arm is divided into a first arm body and a second arm body that can swing independently through the gap groove.

[0006] Optionally, the swing arm includes multiple layers of first silicon steel sheets.

[0007] Optionally, the swing frame includes a first swing frame and a second swing frame, the first swing frame is connected to the first arm body, the second swing frame is connected to the second arm body, the first swing frame is provided with a first output shaft, and the second swing frame is provided with a second output shaft.

[0008] Optionally, a linkage member is connected between the first output shaft and the second output shaft, the linkage member is rotatably connected to the mounting frame, a first through slot and a second through slot are provided on the linkage member, the first output shaft passes through the first through slot, and the second output shaft passes through the second through slot.

[0009] Optionally, a rotating shaft for rotatably mounting the linkage member is provided on the mounting frame, the first through slot and the second through slot are both waist-shaped slots, an annular protrusion is provided on the side of the linkage member close to the swing frame, and two annular protrusions are provided, corresponding to the first through slot and the second through slot respectively, an avoidance groove corresponding to the first output shaft is provided on the mounting frame, and a limit groove corresponding to the second output shaft is provided on the mounting frame.

[0010] Optionally, the first swing frame can swing laterally relative to the second swing frame, the mounting frame is provided with a first protrusion and a second protrusion, the first swing frame is provided with a third protrusion, and the second swing frame is provided with a fourth protrusion, the third protrusion and the fourth protrusion are both movably placed between the first protrusion and the second protrusion, a first compression spring abuts between the first protrusion and the third protrusion, a second compression spring abuts between the second protrusion and the third protrusion; a third compression spring abuts between the first protrusion and the fourth protrusion, and a fourth compression spring abuts between the second protrusion and the fourth protrusion.

[0011] Optionally, the first swing frame includes a first frame and a second frame fixedly connected, the first arm is connected to the second frame, the second swing frame includes a third frame and a fourth frame fixedly connected, the second arm is connected to the fourth frame, the magnet includes a first magnet and a second magnet, the first magnet is fixedly connected to a side of the second frame away from the first frame, and the second magnet is fixedly connected to a side of the fourth frame away from the third frame.

[0012] Optionally, the driving assembly includes a base, a coil frame, and a coil wound on the coil frame, and the base includes multiple layers of second silicon steel sheets.

[0013] Compared with the prior art, the utility model has a split-type reciprocating magnetic swing motor, in which the swing frame assembly and the drive assembly are separately arranged, which is convenient for structural layout design and has low assembly cost; the drive assembly is placed on the side of the swing frame away from the mounting frame, and the magnetic attraction force on the swing arm is not easy to cause it to bend and deform, thereby avoiding problems such as abnormal swinging and increased noise caused by bending and deformation of the swing arm, and having a long service life; during operation, the lower part of the swing arm is subjected to a downward component force, which straightens the swing arm, making it difficult for the swing arm to bend; a limit groove corresponding to the second output shaft is provided on the mounting frame, which avoids the second output shaft from swinging too much and increasing noise and structure Problems such as damage; a first compression spring is abutted between the first protrusion and the third protrusion, and a second compression spring is abutted between the second protrusion and the third protrusion. Four compression springs are provided, and the use cost is low, so that the first swing frame and the second swing frame are assisted in resetting by the corresponding compression springs after swinging, and the reset is flexible and rapid, so that the swing frequency is improved, thereby improving the shaving effect of products such as razors and hair clippers; the swing frame assembly and the drive assembly are simple to disassemble and assemble, with low assembly cost and low maintenance cost; when one of the swing frame assembly and the drive assembly is damaged, only the corresponding damaged component needs to be disassembled for repair, and the maintenance cost is low.

[0014] The present invention also provides a hair trimmer, comprising the above-mentioned split-type reciprocating magnetic swing motor, and also comprising a housing, a first bolt connecting the mounting frame and the housing, a second bolt connecting the drive assembly and the housing, and a bolt hole for mounting the second bolt being provided on the drive assembly; this hair trimmer also has the beneficial effects of the above-mentioned split-type reciprocating magnetic swing motor, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the split-type reciprocating magnetic swing motor of the present invention;

[0016] Figure 2 This is a cross-sectional view of the split-type reciprocating magnetic swing motor of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the second swing frame of the split-type reciprocating magnetic swing motor of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the magnet part of the split-type reciprocating magnetic swing motor of the utility model;

[0019] Figure 5 This is a schematic structural diagram of the split-type reciprocating magnetic swing motor linkage of the utility model;

[0020] Figure 6 This is a structural diagram of the swing arm of the split-type reciprocating magnetic swing motor of the utility model;

[0021] The corresponding component names of the various reference numerals in the figure are: 1 is a swing frame assembly, 2 is a driving assembly, 21 is a base, 22 is a coil frame, 23 is a coil, 24 is a bolt hole, 3 is a mounting frame, 31 is a rotating shaft, 32 is an avoidance groove, 33 is a limit groove, 34 is a first bolt, 4 is a swing frame, 41 is a first swing frame, 411 is a first output shaft, 412 is a third protrusion, 413 is a first frame body, 4131 is a reinforcing rib, 414 is a second frame body, 42 is a second swing frame, 421 is a second output Shaft, 422 is the first protrusion, 423 is the second protrusion, 424 is the third frame, 425 is the fourth frame, 426 is the fourth protrusion, 5 is the swing arm, 51 is the gap groove, 52 is the first arm body, 53 is the second arm body, 6 is the magnet, 61 is the first magnet, 62 is the second magnet, 7 is the linkage part, 71 is the first through groove, 72 is the second through groove, 73 is the annular protrusion, 81 is the first compression spring, 82 is the second compression spring, 83 is the third compression spring, 84 is the fourth compression spring, and 9 is the second bolt. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the positions or location relationships during normal use of the product.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0025] See Figures 1-6 , the embodiment of the present invention provides a split reciprocating magnetic swing motor, including: a swing frame assembly 1 and a drive assembly 2, the swing frame assembly 1 and the drive assembly 2 are separately arranged, and there is no fixed connection relationship between the swing frame assembly 1 and the drive assembly 2, and the swing frame assembly 1 and the drive assembly 2 can be designed with the required position and angle according to needs, and the layout is more free and flexible, so as to reasonably utilize the space of the product using this motor, and achieve the purposes of compact structure and neatness; in addition, the swing frame assembly 1 and the drive assembly 2 can be manufactured separately and assembled separately, and the production cost is low; the swing frame assembly 1 includes a mounting frame 3, a swing frame 4 and a swing arm 5, and the swing arm 5 is connected between the mounting frame 3 and the swing frame 4, one end of the swing arm 5 is connected to the mounting frame 3, and the other end of the swing arm 5 is connected to the swing frame 4, and two swing arms 5 are symmetrically arranged, and the mounting frame 3 and the swing frame 4 are both arranged Between the two swing arms 5, the driving assembly 2 is placed on the side of the swing frame 4 away from the mounting frame 3, and a magnet 6 is fixedly provided on the side of the swing frame 4 close to the driving assembly 2. The driving assembly 2 is used to generate a changing magnetic field after passing alternating current, so as to drive the magnet 6 to drive the swing frame assembly 1 to swing under the action of the magnetic field; in the utility model, the swing frame assembly and the driving assembly are separately arranged, which is convenient for structural layout during design and has low assembly cost; the driving assembly is placed on the side of the swing frame away from the mounting frame, and the magnetic attraction force exerted on the swing arm is not easy to cause it to bend and deform, thereby avoiding problems such as abnormal swinging and increased noise caused by bending and deformation of the swing arm, and having a long service life; during operation, the lower part of the swing arm is subjected to a downward component of force, which will straighten the swing arm, making it difficult for the swing arm to bend; if the lower part of the swing arm is subjected to an upward component of force or the upper part of the swing arm is subjected to a downward component of force, the swing arm will be easily deformed, affecting its service life.

[0026] See Figure 1 、 Figure 3 、 Figure 4 and Figure 6The swing arm 5 is provided with a gap groove 51, which divides the swing arm 5 into a first arm body 52 and a second arm body 53 that can swing independently, so that the first arm body 52 and the second arm body 53 respectively drive the two output ends to move; the swing arm 5 includes multiple layers of first silicon steel sheets to reduce the rigidity of the swing arm 5 so that the swing arm 5 can undergo an appropriate degree of elastic deformation so that the swing frame assembly 1 can swing laterally; the swing frame 4 includes a first swing frame 41 and a second swing frame 42, the first swing frame 41 is connected to the first arm body 52, and the second swing frame 42 is connected to the first arm body 52. Connected to the second arm 53, the first swing frame 41 is provided with a first output shaft 411, and the second swing frame 42 is provided with a second output shaft 421. When the driving component 2 is energized by alternating current, an induced magnetic field is generated. The respective magnets on the first swing frame 41 and the second swing frame 42 cut the induced magnetic field, prompting the first swing frame 41 to move in the forward direction and the second swing frame 42 to move in the reverse direction, forming an interlaced reciprocating motion in opposite directions, so as to be applied to an interlaced reciprocating razor or hair clipper; the forward and reverse directions are the lateral swing directions of the swing frame 4, and the two directions are opposite.

[0027] See Figure 1-Figure 5 A linkage member 7 is connected between the first output shaft 411 and the second output shaft 421. The linkage member 7 is rotatably connected to the mounting bracket 3. A first through slot 71 and a second through slot 72 are provided on the linkage member 7. The first output shaft 411 passes through the first through slot 71, and the second output shaft 421 passes through the second through slot 72. Through the linkage member 7, the first output shaft 411 and the second output shaft 421 can assist each other in swinging. For example, when the first output shaft 411 swings forward, the linkage member 7 can assist in driving the second output shaft 421 to swing in the reverse direction. In addition, the linkage member 7 can also improve the smoothness of the swing of the first output shaft 411 and the second output shaft 421, making the output more stable. The operation noise is low; a rotating shaft 31 for rotating the mounting linkage 7 is provided on the mounting frame 3, and the first through slot 71 and the second through slot 72 are both waist-shaped slots. An annular protrusion 73 is provided on the side of the linkage 7 close to the swing frame 4. There are two annular protrusions 73, which correspond to the first through slot 71 and the second through slot 72 respectively. The annular protrusion 73 can reduce the contact area with the swing frame 4 so that the linkage rotates smoothly; an avoidance groove 32 corresponding to the first output shaft 411 is provided on the mounting frame 3, and a limit groove 33 corresponding to the second output shaft 421 is provided on the mounting frame 3 to avoid problems such as excessive swing angle of the second output shaft 421 and increased noise and structural damage.

[0028] See Figure 1-Figure 4The first swing frame 41 can swing laterally relative to the second swing frame 42, and the mounting frame 3 is provided with a first protrusion 422 and a second protrusion 423. The first swing frame 41 is provided with a third protrusion 412, and the second swing frame 42 is provided with a fourth protrusion 426. The third protrusion 412 and the fourth protrusion 426 are movably placed between the first protrusion 422 and the second protrusion 423. The first compression spring 81 abuts between the first protrusion 422 and the third protrusion 412, the second compression spring 82 abuts between the second protrusion 423 and the third protrusion 412, the third compression spring 83 abuts between the first protrusion 422 and the fourth protrusion 426, and the fourth compression spring 84 abuts between the second protrusion 423 and the fourth protrusion 426; four compression springs are provided, and the use cost is low. After the first swing frame 41 and the second swing frame 42 swing, they are assisted in resetting by the corresponding compression springs, and the resetting is flexible and rapid, so that the swing frequency is improved, thereby improving the shaving efficiency of products such as razors and hair clippers. The first frame 413 is fixedly connected to the second frame 414, and the second frame 414 is fixedly connected to the first frame 413. The first frame 413 is T-shaped, and a reinforcing rib 4131 is provided on the first frame 413 to increase the structural strength of the first frame 413 and prolong the service life. The second frame 414 has a similar structure to the first frame 413; the first arm 52 is connected to the second frame 414 by bolts, and the second swing frame 42 includes a third frame 424 and a fourth frame 425 fixedly connected, and the second arm 53 is connected to the fourth frame 425 by bolts. The magnet 6 includes a first magnet 61 and a second magnet 62. The first magnet 61 is fixedly connected to the side of the second frame 414 away from the first frame 413 by glue or bolts, and the second magnet 62 is fixedly connected to the side of the fourth frame 425 away from the third frame 424 by glue or bolts.

[0029] See Figure 1 and Figure 2 The driving component 2 includes a base 21, a coil frame 22 and a coil 23 wound on the coil frame 22. The base 21 includes multiple layers of second silicon steel sheets. The coil 23 is used to pass alternating current to form an induced magnetic field.

[0030] The utility model discloses a split reciprocating magnetic swing motor, in which the swing frame assembly and the drive assembly are separately arranged, which is convenient for structural layout design and has low assembly cost; the drive assembly is placed on the side of the swing frame away from the mounting frame, and the magnetic attraction force on the swing arm is not easy to cause it to bend and deform, thereby avoiding problems such as abnormal swinging and increased noise caused by bending and deformation of the swing arm, and having a long service life; during operation, the lower part of the swing arm is subjected to a downward component force, which straightens the swing arm, making it difficult for the swing arm to bend; a limit groove corresponding to the second output shaft is provided on the mounting frame to avoid problems such as increased noise and structural damage due to excessive swing angle of the second output shaft Problem: A first compression spring abuts against the first protrusion and the third protrusion, and a second compression spring abuts against the second protrusion and the third protrusion. Four compression springs are provided, and the use cost is low, so that the first swing frame and the second swing frame are assisted in resetting by the corresponding compression springs after swinging, and the resetting is flexible and rapid, so that the swing frequency is improved, and the shaving effect of products such as razors and hair clippers is improved; the swing frame assembly and the drive assembly are simple to disassemble and assemble, and the assembly cost and maintenance cost are low; when one of the swing frame assembly and the drive assembly is damaged, it is only necessary to disassemble the corresponding damaged component for repair, and the repair cost is low.

[0031] See Figure 1-Figure 3 The present invention also provides a hair trimmer, comprising the above-mentioned split-type reciprocating magnetic swing motor, and also comprising a shell, which is the shell of a hair trimmer (such as a shaver, hair clippers, etc.), the split-type reciprocating magnetic swing motor is arranged in the shell, a first bolt 34 is connected between the mounting frame 3 and the shell, the swing frame assembly 1 is fixed to the shell by the first bolt 34, a second bolt 9 is connected between the driving assembly 2 and the shell, a bolt hole 24 for installing the second bolt 9 is provided on the driving assembly 2, and the driving assembly 2 is fixed to the shell by the second bolt 9, the swing frame assembly 1 and the driving assembly 2 are simple to assemble and disassemble, with low assembly cost and low maintenance cost; when one of the swing frame assembly 1 and the driving assembly 2 is damaged, it is only necessary to disassemble the corresponding damaged component for repair, and the maintenance cost is low; the hair trimmer also has the beneficial effects of the above-mentioned split-type reciprocating magnetic swing motor, which will not be repeated here.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A split-type reciprocating magnetic swing motor, characterized in that: include: A swing frame assembly (1) and a driving assembly (2), wherein the swing frame assembly (1) and the driving assembly (2) are separately arranged, the swing frame assembly (1) comprises a mounting frame (3), a swing frame (4) and a swing arm (5), the swing arm (5) being connected between the mounting frame (3) and the swing frame (4), one end of the swing arm (5) being connected to the mounting frame (3), and the other end of the swing arm (5) being connected to the swing frame (4), two swing arms (5) being symmetrically arranged, the mounting frame (3) and the swing frame (4) being both arranged between the two swing arms (5), the driving assembly (2) being arranged on a side of the swing frame (4) away from the mounting frame (3), and a magnet (6) being fixedly arranged on a side of the swing frame (4) close to the driving assembly (2).

2. The split-type reciprocating magnetic swing motor according to claim 1, characterized in that: A clearance groove (51) is provided on the swing arm (5), and the clearance groove (51) divides the swing arm (5) into a first arm body (52) and a second arm body (53) that can swing independently.

3. The split-type reciprocating magnetic swing motor according to claim 1, characterized in that: The swing arm (5) comprises multiple layers of first silicon steel sheets.

4. The split-type reciprocating magnetic swing motor according to claim 2, wherein: The swing frame (4) comprises a first swing frame (41) and a second swing frame (42); the first swing frame (41) is connected to the first arm (52); the second swing frame (42) is connected to the second arm (53); a first output shaft (411) is provided on the first swing frame (41); and a second output shaft (421) is provided on the second swing frame (42).

5. The split-type reciprocating magnetic swing motor according to claim 4, characterized in that: A linkage member (7) is connected between the first output shaft (411) and the second output shaft (421), the linkage member (7) being rotatably connected to the mounting frame (3), a first through slot (71) and a second through slot (72) being provided on the linkage member (7), the first output shaft (411) passing through the first through slot (71), and the second output shaft (421) passing through the second through slot (72).

6. The split-type reciprocating magnetic swing motor according to claim 5, characterized in that: The mounting frame (3) is provided with a rotating shaft (31) for rotatably mounting the linkage member (7); the first through slot (71) and the second through slot (72) are both waist-shaped slots; the linkage member (7) is provided with an annular protrusion (73) on a side close to the swing frame (4); two annular protrusions (73) are provided, and correspond to the first through slot (71) and the second through slot (72) respectively; the mounting frame (3) is provided with an avoidance slot (32) corresponding to the first output shaft (411); and the mounting frame (3) is provided with a limiting slot (33) corresponding to the second output shaft (421).

7. The split-type reciprocating magnetic swing motor according to claim 4, characterized in that: The first swing frame (41) can swing laterally relative to the second swing frame (42); the mounting frame (3) is provided with a first protrusion (422) and a second protrusion (423); the first swing frame (41) is provided with a third protrusion (412); the second swing frame (42) is provided with a fourth protrusion (426); the third protrusion (412) and the fourth protrusion (426) are both movably arranged between the first protrusion (422) and the second protrusion (423); a first compression spring (81) is abutted between the first protrusion (422) and the third protrusion (412); a second compression spring (82) is abutted between the second protrusion (423) and the third protrusion (412); a third compression spring (83) is abutted between the first protrusion (422) and the fourth protrusion (426); a fourth compression spring (84) is abutted between the second protrusion (423) and the fourth protrusion (426).

8. The split-type reciprocating magnetic swing motor according to claim 4, characterized in that: The first swing frame (41) includes a first frame body (413) and a second frame body (414) that are fixedly connected, the first arm body (52) is connected to the second frame body (414), the second swing frame (42) includes a third frame body (424) and a fourth frame body (425) that are fixedly connected, the second arm body (53) is connected to the fourth frame body (425), the magnet (6) includes a first magnet (61) and a second magnet (62), the first magnet (61) is fixedly connected to a side of the second frame body (414) away from the first frame body (413), and the second magnet (62) is fixedly connected to a side of the fourth frame body (425) away from the third frame body (424).

9. The split-type reciprocating magnetic swing motor according to any one of claims 1 to 8, characterized in that: The driving component (2) comprises a base (21), a coil frame (22), and a coil (23) wound on the coil frame (22); the base (21) comprises multiple layers of second silicon steel sheets.

10. A hair trimmer, characterized in that: It comprises a split-type reciprocating magnetic swing motor as described in any one of claims 1 to 9, and also comprises a shell, a first bolt (34) is connected between the mounting frame (3) and the shell, a second bolt (9) is connected between the drive assembly (2) and the shell, and a bolt hole (24) for installing the second bolt (9) is provided on the drive assembly (2).

Images