Coil packaging method of galvanometer motor stator assembly

Abstract

The invention relates to a coil packaging method of a galvanometer motor stator assembly. The coil packaging method comprises the following steps: winding an enameled wire into a coil; assembling the coil and a stator into a stator assembly; in a vacuum environment at the temperature of 20-60 DEG C, glue pouring is carried out on a coil in the stator assembly; and after the glue filling is completed, the glue is cured for 30-60 minutes at the temperature of 70-160 DEG C, and the coil is packaged and is embedded, bonded and fixed with the stator. According to the coil packaging method of the galvanometer motor stator assembly, the manufactured galvanometer motor can be small in size, the exciting current can be reduced, the power factor can be improved, the torque and dynamic response of the galvanometer motor can be improved, the adaptive scene of the galvanometer motor can be increased, and the service life of the galvanometer motor can be prolonged. And the insulating property of the coil, the overall mechanical strength of the stator assembly, the stability of the stator assembly and the service life of the stator assembly can be improved.

Description

Technical Field

[0001] The present application relates to the field of galvanometer motor manufacturing, and in particular to a coil packaging method for a galvanometer motor stator assembly. Background Art

[0002] Galvanometer motors are a special type of motor that uses the principle of vibration to achieve motion and can be widely used in various fields such as optics, communications, medical treatment, radar, laser processing, etc., which can achieve fast and accurate motion control. In general, galvanometer motors have important application value in various fields that require optical signal conditioning, laser beam control, optical imaging and optical signal processing.

[0003] In laser radar, galvanometer motors are widely used in scanning systems to scan the direction and position of laser beams. The galvanometer motor can achieve fast and accurate scanning of the laser beam by controlling the vibration of the galvanometer, thereby realizing three-dimensional perception and measurement of the surrounding environment. At present, in the manufacturing process of the galvanometer motor, the stator assembly is usually made by skeleton winding, that is, winding the coil on the skeleton, and then placing the wound skeleton and coil in the stator to complete the production of the stator assembly. However, the stator assembly made in this way is large in size, and the torque generated by the galvanometer motor is small, resulting in an increase in the size of the galvanometer motor, a decrease in reliability, and an inability to adapt to some special working conditions. Therefore, there is an urgent need in this field for a new method for making stator assemblies. Summary of the invention

[0004] In response to the technical problems existing in the prior art, the present application proposes a coil packaging method for a galvanometer motor stator assembly. The stator assembly manufactured by the method has a small volume and a small magnetic air gap between the stator assembly and the rotating shaft magnetic column, which can reduce the excitation current and improve the power factor, thereby improving the torque and dynamic response of the galvanometer motor, increasing the adaptability scenarios of the galvanometer motor, and improving the insulation performance of the coil, the overall mechanical strength of the stator assembly, and the stability and service life of the stator assembly.

[0005] The coil packaging method of the galvanometer motor stator assembly includes: winding the enameled wire into a coil; assembling the coil and the stator into a stator assembly; filling the coil in the stator assembly with glue in a vacuum environment at a temperature of 20-60° C.; after the glue filling is completed, the glue is cured for 30-60 minutes at a temperature of 70-160° C., and the coil is packaged and nested and bonded with the stator.

[0006] The coil packaging method of the galvanometer motor stator assembly as described above further includes: bonding the adjacent enameled wires neatly arranged in the coil.

[0007] The coil packaging method of the galvanometer motor stator assembly as described above further includes: performing a first performance test on the bonded coil.

[0008] The coil packaging method of the galvanometer motor stator assembly as described above, wherein the first performance test includes but is not limited to: five stator tests and a pinhole test.

[0009] The coil packaging method of the galvanometer motor stator assembly as described above further includes: performing a second performance test on the stator assembly after the glue is cured.

[0010] The coil packaging method of the galvanometer motor stator assembly as described above, wherein the second performance test includes but is not limited to: five stator tests, aging test, shear force test and pull-off force test.

[0011] In the coil packaging method of the galvanometer motor stator assembly as described above, the shear force detection includes: at room temperature, the shear force of the stator assembly reaches 3500-5500N.

[0012] In the coil packaging method of the galvanometer motor stator assembly as described above, the pull-off force test includes: at room temperature, the pull-off force of the stator assembly reaches 2000-4000N.

[0013] In the coil packaging method of the galvanometer motor stator assembly as described above, the aging test includes: performing a 2000H test in a test environment with a temperature of 85°C and a humidity of 85%.

[0014] According to another aspect of the present application, a stator assembly manufactured by the coil packaging method of the galvanometer motor stator assembly as described above is proposed.

[0015] According to another aspect of the present application, a galvanometer motor is proposed, comprising: a wire control unit, a shell unit and a lens unit connected in sequence, the shell unit comprising an outer shell, the interior of the outer shell being provided with a stator assembly and a rotor assembly as described above, the rotor assembly comprising a rotating shaft and a magnetic column arranged on the rotating shaft, wherein a magnetic air gap is included between the coil and the magnetic column, and the magnetic air gap is less than 1.1 mm.

[0016] The coil packaging method of the galvanometer motor stator assembly of the present application can meet the requirement of a smaller galvanometer motor, reduce the excitation current, and improve the power factor, thereby improving the torque and dynamic response of the galvanometer motor, increasing the adaptability scenarios of the galvanometer motor, and improving the insulation performance of the coil, the overall mechanical strength of the stator assembly, and the stability and service life of the stator assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Below, the preferred embodiments of the present application will be further described in detail with reference to the accompanying drawings, wherein:

[0018] Figure 1 A flow chart of coil packaging of a galvanometer motor stator assembly according to one embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the overall structure of a galvanometer motor according to an embodiment of the present application;

[0020] Figure 3 is a cross-sectional view of a galvanometer motor according to an embodiment of the present application;

[0021] Figure 4 An exploded diagram of a galvanometer motor according to an embodiment of the present application;

[0022] Figure 5 An exploded view of a housing unit according to an embodiment of the present application;

[0023] Figure 6 is a schematic diagram of a stator assembly according to an embodiment of the present application; and

[0024] Figure 7 It is a schematic diagram of a limiting horizontal axis according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] In the following detailed description, reference may be made to the various specification drawings that are part of the present application and are used to illustrate specific embodiments of the present application. In the accompanying drawings, similar reference numerals describe substantially similar components in different figures. The various specific embodiments of the present application are described below in sufficient detail so that a person of ordinary skill in the art with relevant knowledge and skills in the art can implement the technical solutions of the present application. It should be understood that other embodiments may also be used or structural, logical or electrical changes may be made to the embodiments of the present application.

[0027] In the description of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, if the terms "first", "second", etc. appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] The present application proposes a new method for manufacturing a stator assembly, the stator assembly manufactured by the method can effectively reduce the size of the motor, reduce the excitation current, and improve the power factor of the galvanometer motor, thereby improving the output torque and dynamic response of the galvanometer motor and improving the overall reliability of the galvanometer motor.

[0029] The technical solution of the present application is further described below through specific implementation methods. Those skilled in the art should understand that the following description is only for the convenience of understanding the technical solution of the present application and should not be used to limit the protection scope of the present application.

[0030] Figure 1 The present invention is a flow chart of coil packaging of a galvanometer motor stator assembly according to one embodiment of the present application.

[0031] As shown in the figure, in step S10, the enameled wire is wound into a coil. In some embodiments, the coil needs to be inspected after the enameled wire is wound into a coil to ensure the quality of the wound coil and improve the yield rate of the galvanometer motor. In some embodiments, the inspection of the enameled wire and the inspection of the coil as a whole are included. The surface and connectivity of the enameled wire are inspected, and it is required that the surface of the enameled wire is not scratched and the enameled wire is not broken. The entire coil is inspected, and it is required that the adjacent enameled wires of the coil are firm and not loose, and the adjacent enameled wires are arranged neatly.

[0032] In some embodiments, it is also possible to bond adjacent enameled wires, which can effectively prevent the coils from loosening and affecting the performance of the stator assembly. For example: heating bonding or solvent bonding. In some embodiments, after the coils are bonded, the coils need to be subjected to a first performance test to ensure that the coils can work normally and avoid wasting resources due to the galvanometer motor being unable to be used due to the coils not being able to work. In some embodiments, the first performance test includes, but is not limited to: five stator tests and a pinhole test. In some embodiments, the five stator tests include: resistance, inductance, insulation withstand voltage, turn-to-turn withstand voltage, and AC withstand voltage.

[0033] In step S20, the coil and the stator are assembled into a stator assembly, and the coil is laid on the inner wall of the stator, and the area covered by the coil is slightly smaller than the area of ​​the inner wall of the stator, which is beneficial to increase the range of the magnetic field of the stator assembly and can also effectively protect the coil. According to one embodiment of the present application, two oppositely arranged coils are laid on the inner wall of the stator.

[0034] In step S30, the coils in the stator assembly are filled with glue. Furthermore, in a vacuum environment at a temperature of 20-60°C, the coils in the stator assembly are filled with glue, which can effectively ensure the flow of glue, so that the surface of the coils can be covered with glue, and bubbles in the glue can be prevented from affecting the magnetic field path of the stator assembly, thereby affecting the performance of the galvanometer motor. In some embodiments, when the coils in the stator assembly are filled with glue, the vacuum extraction time is at least 3-7 minutes.

[0035] In step S40, the glue is cured to complete the packaging of the coil and to be nested and bonded to the stator. Further, after the glue is poured, the glue is cured for 30-60 minutes at a temperature of 70-160°C, the coil is packaged and nested and bonded to the stator, which can improve the insulation performance of the coil, the overall mechanical strength of the stator assembly, and the stability and service life of the stator assembly.

[0036] In some embodiments, after the glue is cured, a second performance test is performed on the stator assembly to ensure that the stator assembly can work normally, so that the subsequent assembly procedure can be carried out to avoid the galvanometer motor being unusable due to the stator assembly not working, which causes a waste of resources. In some embodiments, the second performance test includes but is not limited to: five stator tests, aging tests, shear force tests, and pull-off force tests. According to one embodiment of the present application, the shear force test includes: at room temperature, the shear force of the stator assembly needs to reach 3500-5500N. According to one embodiment of the present application, the pull-off force test includes: at room temperature, the pull-off force of the stator assembly needs to reach 2000-4000N. According to one embodiment of the present application, the aging test includes: a 2000H test in a test environment with a temperature of 85°C and a humidity of 85%.

[0037] According to the coil packaging method of the present application, the coil can be effectively packaged and nested and bonded with the stator to complete the manufacture of the stator assembly, which can improve the insulation performance of the coil, the overall mechanical strength of the stator assembly, and the stability and service life of the stator assembly. In addition, there is no other structure inside the manufactured stator assembly coil. When the other structures of the galvanometer motor (such as the rotor assembly) are assembled, the coil is directly adjacent to the magnetic columns in the rotor assembly, which can reduce the magnetic air gap between the two, reduce the excitation current, and improve the power factor of the galvanometer motor, thereby improving the output torque and dynamic response of the galvanometer motor. The specific structure of the galvanometer motor will be described in detail below.

[0038] Figure 2 Schematic diagram of the overall structure of a galvanometer motor according to an embodiment of the present application. Figure 3 It is a cross-sectional view of a galvanometer motor according to one embodiment of the present application. Figure 4 An exploded diagram of a galvanometer motor according to an embodiment of the present application.

[0039] like Figures 2 to 4 As shown, the galvanometer motor 100 includes: a wire control unit 110, a shell unit 120 and a lens unit 130 connected in sequence, wherein the wire control unit 110 can be used to control the rotation of the galvanometer motor, a rotor assembly and a stator assembly are arranged inside the shell unit 120, and the wire control unit 110 controls the rotor assembly to rotate in the stator assembly, and the lens unit 130 is connected to the rotor assembly and is used to manipulate the light beam of the laser radar transmitting end.

[0040] As mentioned above, the housing unit is an important component for the galvanometer motor to generate rotation or torque, and it occupies a large volume of the galvanometer motor. The present application improves the structure of the housing unit to reduce the size of the galvanometer motor and improve the torque and dynamic response of the galvanometer motor. Among them, the wire control unit and the lens unit can be any existing structure, which will not be repeated here.

[0041] Figure 5 FIG. 1 is an exploded view of a housing unit according to an embodiment of the present application. Figure 5 Combined with Figure 2 , Figure 3 As shown, in some embodiments, the housing unit 120 includes a stator assembly 121, a rotor assembly 122 and a housing 123, wherein the stator assembly 121 is disposed in the housing 123 and is used to generate a static magnetic field, and the rotor assembly 122 is disposed in the stator assembly 121, so that when the rotor assembly generates a magnetic field, the interaction between the rotor assembly and the magnetic field of the stator assembly generates a torque, thereby causing the rotor assembly to rotate.

[0042] Figure 6 FIG. 1 is a schematic diagram of a stator assembly according to an embodiment of the present application. Figure 6 Combined with Figure 3 As shown, in some embodiments, the stator assembly 121 includes a stator 1211 and a coil 1212. The coil 1212 is nested in the stator 1211. In some embodiments, the coil 1212 and the stator 1211 can be encapsulated by glue potting, the surface of the coil 1212 can be glue-sealed, and the coil and the stator can be glued and fixed to each other, which is beneficial to protecting the coil, and can improve the insulation performance of the coil, the overall mechanical strength of the stator assembly, and the stability and service life of the stator assembly.

[0043] Combination Figure 6As shown, in some embodiments, the shape of the stator 1211 can be an annular cylinder, which includes a through hole inside and runs through the entire stator, so that the coil 1212 can be placed in the stator 1211. In some embodiments, the internal through hole of the stator 1211 can also be a non-equal diameter structure, for example: the diameter near the two ends of the stator is smaller, and the diameter near the middle part of the stator is larger. The coil is arranged in the middle part of the stator, and the diameter at both ends of the through hole is smaller, so that the coil can be limited and fixed. In some embodiments, the material of the stator can be a magnetic conductive material. For example: electrical pure iron, low carbon steel, magnetic conductive stainless steel, nickel alloy, etc., which is conducive to reducing magnetic resistance, reducing eddy current loss, hysteresis loss and leakage of magnetic field, and can improve the utilization rate and magnetic efficiency of the magnetic field, so that the galvanometer motor can reduce the volume under the same power, improve the compactness of the galvanometer motor design, and can also improve the mechanical strength, heat resistance and heat dissipation capacity of the stator assembly, which is conducive to the galvanometer motor to adapt to harsh working conditions.

[0044] In some embodiments, the coil 1212 includes a plurality of wires arranged in a mutually arranged manner, and the plurality of wires are connected end to end and laid on the inner wall of the stator through hole. Figure 6 As shown, according to one embodiment of the present application, two coils 1212 are laid relatively on the inner wall of the through hole inside the stator 1211, which is conducive to quickly and accurately controlling the rotation of the rotor assembly, and can also improve the control accuracy, reduce electromagnetic interference, and optimize the motor performance to meet the different movement requirements of the galvanometer motor. In some embodiments, in some embodiments, the wire is an enameled wire, which can ensure the electrical performance of the coil, is conducive to the insulation between adjacent wires in the coil, and prevents short circuits from affecting the normal use of the galvanometer motor. In some embodiments, the multiple wires of the coil 1212 are bonded to each other, which is conducive to improving the mechanical strength of the coil.

[0045] like Figure 3 Combined with Figure 5 As shown, in some embodiments, the rotor assembly 122 includes a rotating shaft 1221 and a magnetic column 1222 disposed on the rotating shaft 1221, wherein the rotating shaft 1221 is inserted into the coil 1212, and at least one end thereof passes through the coil 1212. In some embodiments, one end of the rotating shaft 1221 passing through the coil 1212 may be connected to a lens unit, so that the lens unit may be controlled to manipulate the laser beam.

[0046] In some embodiments, when the rotating shaft 1221 is inserted into the coil 1212, the magnetic column 1222 is located within the range covered by the coil, and a magnetic air gap is included between the coil and the magnetic column, which can isolate the stator assembly and the rotor assembly, prevent the rotor assembly from rubbing or colliding during rotation, protect the galvanometer motor from damage, and is beneficial to the heat dissipation and cooling of the galvanometer motor, as well as reducing the noise and vibration of the galvanometer motor, so that the galvanometer motor can adapt to different working conditions. In some embodiments, the spacing of the magnetic air gap can be less than 1.1mm. Compared with the existing galvanometer motor, the magnetic air gap of the galvanometer motor of the present application can be optimized and reduced by 0.5-1mm, which can reduce the volume of the galvanometer motor, reduce the excitation current, and improve the power factor, thereby improving the dynamic response of the galvanometer motor.

[0047] According to an embodiment of the present application, when the length of the motor of the present application is shortened by 4 mm and the outer diameter of the magnetic column remains unchanged, the torque of multiple galvanometer motors is tested, as shown in Tables 1 and 2. Table 1 shows the torque test results of multiple existing galvanometer motors, and Table 2 shows the torque test results of multiple galvanometer motors of the present application.

[0048] Table 1

[0049]

[0050] Table 2

[0051]

[0052] As shown in Table 1 and Table 2, the torque of the existing galvanometer motor is 4.7-5.7 mN·m, with an average of 5.5 mN·m; while the torque of the galvanometer motor of the present application is 6-7 mN·m, with an average of 6.2 mN·m. Therefore, it can be concluded that the torque of the galvanometer motor of the present application can be increased by about 12.7% while being smaller in size than the existing galvanometer motor.

[0053] like Figure 3 As shown, in some embodiments, the two ends of the rotating shaft 1221 are rotatably fixed in the housing 123 by the first bearing 101 and the second bearing 102 respectively, and a magnetic air gap is retained between the magnetic column 1222 and the coil 1212, so as to facilitate the rotation of the rotating shaft in the stator coil. In some embodiments, the first bearing and the second bearing can be arranged at the two ends of the housing 123, which is convenient for the installation of the galvanometer motor and is conducive to the precise control of the spacing of the magnetic air gap. According to one embodiment of the present application, the first bearing 101 can be arranged in the bearing seat 103, one end of the bearing seat 103 is connected to the first end of the housing, and the other end is connected to the wire control unit, which is conducive to the installation and assembly of the galvanometer motor, and because the relative position of the bearing seat remains unchanged, the concentricity of the bearing seat and the housing can remain unchanged, thereby improving the concentricity of the parts in the galvanometer motor.

[0054] In some embodiments, the bearing seat 103 may include a bearing cavity 1031, which can be used to connect the first bearing 101 and part of the rotating shaft. In some embodiments, the bearing seat 103 may also include a perforation 1032, which is connected to the bearing cavity 1031 and passes through the bearing seat 103, which can be used to accommodate the rotating shaft passing through and extending into the wire control unit, which is conducive to the wire control unit to detect the rotation of the rotating shaft, thereby accurately controlling the movement of the galvanometer motor. In some embodiments, the bearing seat 103 may include a boss 1033, which can extend into one end of the housing and be connected to the housing by interference fit, so as to adjust the concentricity of various structures of the galvanometer motor during the installation of the galvanometer motor. In some embodiments, an adhesive layer may be included between the boss 1033 and the inner wall of the housing to fix the bearing seat and the housing and determine the relative position between the bearing seat and the housing. In some embodiments, the bearing seat 103 may also include one or more connecting holes 1034, which are arranged on the surface away from the boss side and can be used to connect the wire control unit.

[0055] In some embodiments, the second bearing 102 may also be disposed in the bearing seat and connected to the second end of the housing. According to one embodiment of the present application, the second bearing 102 is disposed in the housing and close to the second end of the housing. By using the second bearing connected to the fixed housing, the magnetic air gap between the magnetic column and the coil can be effectively ensured, and the position of the rotor assembly can be easily determined, which is beneficial to the installation and assembly of the galvanometer motor.

[0056] like Figure 4 Combined with Figure 5 As shown, in some embodiments, the housing unit may further include a limiting device, which may be disposed at the second end of the housing and may limit the axial position of the second bearing and the rotation angle of the rotating shaft. In some embodiments, the limiting device may include: a limiting transverse axis 104 and a limiting washer 105. The limiting transverse axis 104 may be disposed at one end of the rotating shaft that passes through the coil and is connected to the lens unit, and the limiting washer may be fixedly connected to the second end of the housing to limit the axial position of the second bearing and accommodate the limiting transverse axis 104 to limit the rotation position of the rotating shaft, which is beneficial to optimizing the use function of the limiting device, facilitating the assembly of the second bearing, and optimizing the assembly cost of the galvanometer motor.

[0057] Figure 7Schematic diagram of a limiting horizontal axis according to an embodiment of the present application. In some embodiments, the limiting horizontal axis 104 is radially penetrated on the rotating shaft and is connected with the rotating shaft in an interference fit manner, which is convenient for the installation and assembly of the limiting horizontal axis. In some embodiments, the limiting horizontal axis 104 may also be a part of the rotating shaft or rotor assembly. For example: the limiting horizontal axis is integrally formed with the rotating shaft, and forms a limiting structure of the galvanometer motor with a limiting washer provided on the housing. In some embodiments, the limiting horizontal axis 104 is cylindrical in shape, and includes a horizontal axis body 1041, and includes a through hole 1042 passing through the horizontal axis body 1041. In some embodiments, the horizontal axis body 1041 may also include an opening 1043, which passes through at least part of the side wall of the horizontal axis body 1041 and is connected to the through hole 1042, which is conducive to pressing the limiting horizontal axis to change the diameter of the limiting horizontal axis, and is convenient for the limiting horizontal axis to be pressed onto the rotating shaft, which can improve the yield rate of the galvanometer motor. In some embodiments, the limiting horizontal axis may be an elastic cylindrical pin.

[0058] like Figure 5 As shown, in some embodiments, the limiting washer 105 includes a washer body 1051 and a through hole 1052, a limiting groove 1053 and one or more connecting holes 1054 arranged on the washer body 1051, wherein the through hole 1052 is arranged in the middle of the washer body and can be used to accommodate the rotation shaft passing through, the limiting groove is connected to the through hole 1052 and is used to accommodate the limiting horizontal axis radially arranged on the rotation shaft, and the connecting hole 1054 is arranged at the edges of the washer body 1051 and is used to limit the washer and the housing for fixed connection. In some embodiments, the limiting groove 1053 may include grooves arranged opposite to each other up and down, and the groove extends from the through hole 1052 to the outside of the washer body.

[0059] In some embodiments, the limiting washer 105 is connected to the second end of the housing by a connecting member 106. In some embodiments, the connecting member 106 can be a bolt. In some embodiments, the limiting device can also include a connecting ring 107, which is arranged on the side of the limiting washer away from the housing and is connected to the connecting member 106, and the limiting washer can be clamped between the housing and the connecting ring. In some embodiments, the connecting ring 107 includes one or more connecting holes 1071, which can be used to cooperate with the connecting member 106. In some embodiments, the connecting ring 107 at least covers a portion of the limiting groove 1053, which can be used to limit the axial position of the limiting horizontal axis accommodated in the limiting groove.

[0060] In some embodiments, the housing 123 is cylindrical in shape, and includes a housing body and a fixing plate 1232 that is tangentially protruding along the outer periphery of the housing body, so that the galvanometer motor is fixedly connected to an external device (such as a laser emitting end). Since the galvanometer motor manipulates the laser beam through the lens unit, in order to make the irradiation range of the laser beam after the lens in the lens unit reflects the laser beam within a preset range, the angle between the fixing plate and the lens action surface should meet the accuracy requirements of a certain angle, and the accuracy requirement is that the allowable deviation does not exceed 1°. In some embodiments, the housing 123 may also include a plurality of cavities for accommodating the above-mentioned components of the housing unit. Including but not limited to: a stator assembly cavity for accommodating a stator assembly, a bearing seat cavity for accommodating a bearing seat, and a bearing cavity for accommodating a second bearing. In some embodiments, the housing 123 can be integrally formed. For example, die casting, extrusion molding, etc., facilitate the production of the housing 123 and reduce manufacturing costs. In some embodiments, the housing 123 also needs to be machined. For example: machining a plurality of different cavities in the housing, etc. In some embodiments, the material of the housing is a non-magnetic material. For example, aluminum alloy, stainless steel, etc. can be used for electromagnetic shielding, which is beneficial to reduce magnetic field interference, reduce costs, improve efficiency, reliability and heat dissipation performance, thereby improving the overall performance and life of the galvanometer motor.

[0061] The galvanometer motor of the present application uses a stator assembly manufactured by a new stator coil packaging method, which can optimize the structure of the galvanometer motor, reduce the overall size of the galvanometer motor, and reduce the magnetic air gap between the stator coil and the rotor magnetic column of the galvanometer motor, which can effectively reduce the excitation current, improve the power factor of the galvanometer motor and the torque of the galvanometer motor, thereby improving the dynamic response of the galvanometer motor.

[0062] The above embodiments are only used to illustrate the present application, and are not intended to limit the present application. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the scope of the present application. Therefore, all equivalent technical solutions should also fall within the scope of the present application.

Claims

1. A coil packaging method for a galvanometer motor stator assembly, comprising: Winding the enameled wire into a coil; Assembling the coil and the stator into a stator assembly; In a vacuum environment at a temperature of 20-60° C., the coils in the stator assembly are filled with glue; After the glue pouring is completed, the glue is cured for 30-60 minutes at a temperature of 70-160° C., and the coil packaging is completed and is nested and bonded to the stator.

2. The coil packaging method of the galvanometer motor stator assembly according to claim 1, further comprising: Bonding is performed on adjacent enameled wires that are neatly arranged in a coil.

3. The coil packaging method of the galvanometer motor stator assembly according to claim 2, further comprising: The first performance test was performed on the bonded coil.

4. The coil packaging method of the galvanometer motor stator assembly according to claim 3, wherein: The first performance test includes but is not limited to: five stator tests and a pinhole test.

5. The coil packaging method of the galvanometer motor stator assembly according to claim 1, further comprising: The stator assembly is subjected to a second performance test after the glue is cured.

6. The coil packaging method of the galvanometer motor stator assembly according to claim 5, wherein: The second performance test includes but is not limited to: five stator tests, aging test, shear force test and pull-off force test.

7. The coil packaging method of the galvanometer motor stator assembly according to claim 6, wherein: The shear force detection includes: at room temperature, the shear force of the stator assembly reaches 3500-5500N.

8. The coil packaging method of the galvanometer motor stator assembly according to claim 6, wherein: The pull-off force test includes: at room temperature, the pull-off force of the stator assembly reaches 2000-4000N.

9. The coil packaging method of the galvanometer motor stator assembly according to claim 6, wherein: The aging test includes: conducting a 2000H test in a test environment with a temperature of 85°C and a humidity of 85%.

10. A stator assembly manufactured by the coil packaging method of a galvanometer motor stator assembly as claimed in any one of claims 1 to 9.

11. A galvanometer motor, comprising: A wire control unit, a housing unit and a lens unit connected in sequence, wherein the housing unit comprises a shell, wherein the stator assembly and the rotor assembly as claimed in claim 10 are arranged inside the shell, wherein the rotor assembly comprises a rotating shaft and a magnetic column arranged on the rotating shaft, wherein a magnetic air gap is included between the coil and the magnetic column, and the magnetic air gap is less than 1.1 mm. .

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