Small motor convenient to assemble

Abstract

The utility model discloses a small-sized motor convenient to assemble, which comprises a stator framework, an upper polar plate and a gear plate, and is characterized in that the stator framework comprises a coil framework used for winding a coil and a wire outlet seat connected with the coil framework; a plurality of positioning columns are arranged on the top surface of the coil framework, the upper polar plate is provided with first positioning holes which penetrate through the upper polar plate and are matched with the positioning columns, the gear plate is provided with second positioning holes matched with the positioning columns, the upper polar plate is placed on the top surface of the coil framework, and the gear plate is placed on the top surface of the upper polar plate. The positioning columns penetrate through the first positioning holes and are inserted into the second positioning holes. According to the utility model, the upper polar plate and the gear plate are convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of small motors, in particular to a small motor which is easy to assemble. Background Art

[0002] Existing small motors such as stepper motors and synchronous motors are widely used in the field of household appliances. For example, the Chinese utility model patent with publication number CN209283034U discloses a common small motor, which includes components such as a stator frame, an upper pole plate and a gear plate. The upper pole plate is installed on the top surface of the stator frame, and the gear plate is installed on the top surface of the upper pole plate. In the prior art, both the upper pole plate and the gear plate lack positioning measures. During assembly, their positions need to be repeatedly adjusted to ensure that the upper pole plate and the gear plate are installed in place, which makes assembly very cumbersome. Utility Model Content

[0003] The utility model provides a small motor which is easy to assemble and is convenient for assembling an upper pole plate and a gear plate.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides a small motor that is easy to assemble, including a stator frame, an upper pole plate and a gear plate, wherein the stator frame includes a coil frame for winding a coil and a wire outlet seat connected to the coil frame; a plurality of positioning columns are arranged on the top surface of the coil frame, the upper pole plate is provided with a first positioning hole that penetrates the upper pole plate and is compatible with the positioning column, the gear plate is provided with a second positioning hole that is compatible with the positioning column, the upper pole plate is placed on the top surface of the coil frame, the gear plate is placed on the top surface of the upper pole plate, and the positioning column passes through the first positioning hole and is inserted into the second positioning hole.

[0006] In some embodiments, it also includes a motor housing, a cover plate, a circuit board and a wire protection box; an opening is provided on the top of the motor housing, and a notch is provided on the side of the motor housing; the coil skeleton, the upper pole plate and the gear plate are all arranged in the motor housing, and the cover plate is connected to the motor housing and covers the opening; the wire outlet seat is located at the notch, the circuit board is fixed on the wire outlet seat, the wire protection box is fixed at the notch and the wire outlet seat and the circuit board cover are arranged inside, and the wire protection box is provided with a through wire outlet.

[0007] In some embodiments, it also includes multiple gears and output shafts, which are all installed on the gear plate and can rotate relative to the gear plate, and one of the gears is engaged with the output shaft; the cover plate is provided with a through hole, and the output shaft is inserted in the through hole; the inner side edge of the top of the wire protection box is provided with a avoidance groove for avoiding the gear.

[0008] In some embodiments, the cover plate includes a protrusion that protrudes laterally outward, and the protrusion extends above the top surface of the wire protection box;

[0009] The protrusion covers a portion of the top surface of the wire protection box; or, the protrusion covers the entire top surface of the wire protection box; or, the protrusion covers the entire top surface of the wire protection box and extends to the outside of the top of the wire protection box; or, the top surface of the wire protection box is provided with two protruding bumps, and the protrusion extends between the two bumps.

[0010] In some embodiments, the outer side surface of the wire protection box is an arcuate surface that matches the circumferential surface of the motor housing; or, the outer side surface of the wire protection box is a plane parallel to the axial direction of the output shaft; or, the outer side surface of the wire protection box includes a middle surface and two lateral surfaces, the two lateral surfaces are respectively located on both sides of the middle surface, and the two lateral surfaces are connected to the middle surface, both lateral surfaces are arcuate surfaces, and the middle surface is a plane parallel to the axial direction of the output shaft.

[0011] In some embodiments, clamping structures are provided on both sides of the wire protection box, and the two clamping structures are respectively used to clamp the motor housing on both sides of the notch; the clamping structure includes an inner clamping part and an outer clamping part, the inner clamping part is located on the inner side of the motor housing, and the outer clamping part is located on the outer side of the motor housing, and the inner clamping part and the outer clamping part jointly clamp the motor housing; one or more inner clamping parts are provided, and one or more outer clamping parts are provided.

[0012] In some embodiments, the top of the outer side surface of the wire protection box is flush with the bottom of the outer side surface of the wire protection box, or the top of the outer side surface of the wire protection box is recessed inward relative to the bottom of the outer side surface of the wire protection box.

[0013] In some embodiments, a notch is provided on the outer side surface of the wire protection box, and the wire outlet is provided on the inner wall of the notch.

[0014] In some embodiments, the upper pole plate is provided with a plurality of upper pole claws extending downward, the inner bottom wall of the motor housing is provided with a plurality of lower pole claws extending upward, the coil frame is provided with a penetrating center hole, and the upper pole claws and the lower pole claws both extend into the center hole.

[0015] In some embodiments, a surface of the top end of the output shaft is provided with threads.

[0016] The utility model has at least the following beneficial effects: the utility model is provided with a plurality of positioning posts on the top surface of the coil skeleton, the upper pole plate is provided with a first positioning hole which penetrates through the upper pole plate and matches with the positioning posts, the gear plate is provided with a second positioning hole which matches with the positioning posts, and when assembling the upper pole plate and the gear plate, it is only necessary to align the first positioning hole and the second positioning hole with the positioning posts, and then insert the positioning posts into the first positioning hole and the second positioning hole, so that the upper pole plate and the gear plate can be assembled into place, eliminating the process of repeatedly adjusting the position and facilitating the assembly of the upper pole plate and the gear plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a stator frame, an upper pole plate and a gear plate of an embodiment of the utility model;

[0018] Figure 2 This is an exploded schematic diagram of a stator frame, an upper pole plate and a gear plate of an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of a small motor that is easy to assemble according to an embodiment of the utility model;

[0020] Figure 4 This is an exploded schematic diagram of a small motor that is easy to assemble according to an embodiment of the utility model;

[0021] Figure 5 This is an exploded schematic diagram of a small motor that is easy to assemble according to an embodiment of the utility model from another perspective;

[0022] Figure 6 This is a schematic diagram of the structure of Example 2 of the present utility model;

[0023] Figure 7 This is an exploded schematic diagram of Example 2 of the utility model;

[0024] Figure 8 This is a schematic diagram of the structure of Embodiment 3 of the present utility model;

[0025] Fig. 9 This is an exploded schematic diagram of Example 3 of the utility model;

[0026] Fig.10 This is a schematic diagram of the structure of Embodiment 4 of the present utility model;

[0027] Fig.11 This is an exploded schematic diagram of Example 4 of the utility model;

[0028] Fig.12 This is a schematic diagram of the structure of Example 5 of the present utility model;

[0029] Fig.13This is an exploded schematic diagram of Example 5 of the utility model;

[0030] Fig.14 This is a schematic diagram of the structure of Example 6 of the present utility model;

[0031] Fig.15 This is an exploded schematic diagram of Example 6 of the utility model;

[0032] Fig.16 This is a schematic diagram of the structure of Example 7 of the present utility model;

[0033] Fig.17 This is an exploded schematic diagram of Example 7 of the utility model;

[0034] Fig.18 This is a schematic diagram of the structure of Example 8 of the present utility model;

[0035] Fig.19 This is an exploded schematic diagram of Example 8 of the utility model;

[0036] Fig. 20 This is a schematic diagram of the structure of Example 9 of the present utility model;

[0037] Fig.21 This is an exploded schematic diagram of Example 9 of the utility model;

[0038] Fig. 22 This is a schematic diagram of the structure of Embodiment 10 of the present utility model;

[0039] Fig.23 It is an exploded schematic diagram of embodiment 10 of the present utility model;

[0040] Fig.24 This is a schematic diagram of the structure of Example 11 of the utility model;

[0041] Fig.25 It is a schematic diagram of the decomposition of Example 11 of the utility model.

[0042] Wherein, the accompanying drawings are marked as follows:

[0043] stator frame 110, coil frame 111, outlet seat 112, upper pole plate 120, first positioning hole 121, upper pole claw 122, gear plate 130, second positioning hole 131, positioning column 140,

[0044] Motor housing 200, notch 201, lower pole claw 210;

[0045] Cover plate 300, protrusion 310;

[0046] Wire protection box 400, wire outlet 401, avoidance groove 402, missing groove 403, protrusion 410, middle surface 421, lateral surface 422, clamping structure 430, inner clamping member 431, outer clamping member 432;

[0047] Circuit board 500;

[0048] Gear 600;

[0049] Output shaft 700 , thread 710 . DETAILED DESCRIPTION

[0050] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0051] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0053] The embodiment of the utility model provides a small motor which is easy to assemble. Figure 1 and Figure 2 As shown, it includes a stator frame 110, an upper pole plate 120 and a gear plate 130. The stator frame 110 includes a coil frame 111 for winding a coil and a wire outlet seat 112 connected to the coil frame 111. The wire is used to be wound on the coil frame 111 to form a stator coil. The wire outlet seat 112 is provided with a conductive column electrically connected to the wire to conduct electrical energy so that the stator coil is energized. The upper pole plate 120 is used to cooperate with the stator coil to form a plurality of magnetic poles. The gear plate 130 is used to install gears to conduct the driving force of the rotor.

[0054] A plurality of positioning posts 140 are provided on the top surface of the coil skeleton 111, and the upper pole plate 120 is provided with a first positioning hole 121 penetrating through the upper pole plate 120 and matching with the positioning posts 140. Specifically, the number, position and size of the first positioning holes 121 can be respectively matched with the number, position and size of the positioning posts 140, and the gear plate 130 is provided with a second positioning hole 131 matching with the positioning posts 140. Specifically, the number, position and size of the second positioning holes 131 can be respectively matched with the number, position and size of the positioning posts 140. During assembly, the first positioning hole 121 is aligned with the positioning column 140, the upper plate 120 is placed on the top surface of the coil frame 110, the positioning column 140 passes through the first positioning hole 121, the second positioning hole 131 is aligned with the positioning column 140, the gear plate 130 is placed on the top surface of the upper plate 120, and the positioning column 140 is inserted into the second positioning hole 131, so that the upper plate 120 and the gear plate 130 can be assembled in place, eliminating the process of repeatedly adjusting the positions of the upper plate 120 and the gear plate 130, and facilitating the assembly of the upper plate 120 and the gear plate 130. At the same time, the positioning column 140 has a limiting effect on both the upper plate 120 and the gear plate 130, so that the upper plate 120 is difficult to move laterally relative to the coil frame 110, and the gear plate 130 is difficult to move laterally relative to the upper plate 120, so that both the upper plate 120 and the gear plate 130 can be maintained in the correct installation position.

[0055] In some embodiments, the coil frame 111 and the outlet seat 112 can be integrally formed to facilitate the manufacturing of the stator frame 110 and to enhance the connection strength between the coil frame 111 and the outlet seat 112. The coil frame 111 can be provided with an annular groove to facilitate winding the coil in the annular groove, so that the coil is not easily separated from the coil frame 111.

[0056] In some embodiments, Figure 3-5As shown, the small motor that is easy to assemble in this embodiment also includes a motor housing 200, a cover plate 300, a circuit board 500 and a wire protection box 400. The top of the motor housing 200 is provided with an opening, which is convenient for placing the components located inside the motor housing 200 through the opening, and the side of the motor housing 200 is provided with a notch 201, which is convenient for connecting an external power supply through the notch 201 to supply power to the stator coil. The coil skeleton 111, the upper pole plate 120 and the gear plate 130 are all arranged in the motor housing 200, and the cover plate 300 is connected to the motor housing 200 and covers the opening at the top of the motor housing 200 to cover the coil skeleton 111, the upper pole plate 120 and the gear plate 130. The outlet seat 112 is located at the notch 201, and the circuit board 500 is fixed on the outlet seat 112. The circuit board 500 has a corresponding circuit, and one end of the connecting line is used to be connected to the circuit board 500, and the other end is used to connect to the external power supply. The wire protection box 400 is fixed at the notch 201 to block the notch 201 and cover the outlet seat 112 and the circuit board 500 therein, thereby providing dust protection for the outlet seat 112 and the circuit board 500. The wire protection box 400 is provided with a through outlet 401, from which the connecting wire extends, so as to facilitate connection to an external power source.

[0057] Furthermore, the small motor that is easy to assemble in this embodiment also includes a plurality of gears 600 and an output shaft 700, which are both mounted on the gear plate 130 and can rotate relative to the gear plate 130. The plurality of gears 600 mesh in sequence to transmit the driving force, and a gear 600 located at the starting end of the force transmission direction is used to mesh with the motor rotor, and a gear located at the tail end of the force transmission direction is meshed with the output shaft 700, so that when the motor rotor rotates, the output shaft 700 is driven to rotate by the gear set formed by the plurality of gears 600. The cover plate 300 is provided with a through hole, and the output shaft 700 is penetrated in the through hole, so that the output shaft 700 can extend out for connecting the external device to be driven. The inner edge of the top of the wire protection box 400 is provided with a avoidance groove 402 for avoiding the gear 600. When assembling the gear 600, the gear 600 can be placed directly. The existence of the avoidance groove 402 makes it difficult for the gear 600 to touch the wire protection box 400, which facilitates the assembly of the gear 600. At the same time, when the gear 600 rotates, it will not interfere with the wire protection box 400.

[0058] In some embodiments, the outlet base 112 is provided with a conductive column, which is inserted into a socket reserved on the circuit board 500 and welded to the circuit board 500 to fix the circuit board 500 on the outlet base 112 .

[0059] In some embodiments, multiple gear shafts are fixed on the gear plate 130, and the gear 600 and the output shaft 700 are both provided with mounting holes. The gear shafts are inserted into the mounting holes of the gear 600 and the output shaft 700, and the gear 600 and the output shaft 700 can both rotate relative to the gear shaft, thereby completing the installation of the gear 600 and the output shaft 700.

[0060] In some embodiments, Figure 2-5 As shown, the upper pole plate 120 is provided with a plurality of upper pole claws 122 extending downward, the inner bottom wall of the motor housing 200 is provided with a plurality of lower pole claws 210 extending upward, and the coil frame 111 is provided with a through center hole, and the upper pole claws 122 and the lower pole claws 210 are both inserted into the center hole. Two groups of coils can be wound on the coil frame 111, and the upper pole claws 122 and the lower pole claws 210 are respectively used to form the magnetic poles of the two groups of coils. At the same time, the lower pole claws 210 of this embodiment are directly arranged on the inner bottom wall of the motor housing 200, and there is no need to arrange a lower pole plate, which can simplify the overall structure and reduce the manufacturing cost.

[0061] In this embodiment, the lower pole claw 210 can be formed by stamping. After stamping, a plurality of through openings are formed on the inner bottom wall of the motor housing 200 , and the openings can be used for heat dissipation of the motor.

[0062] In some embodiments, a thread 710 is disposed on the surface of the top end of the output shaft 700 , which facilitates the connection of an external device with a threaded hole to the output shaft 700 , making it more convenient to use.

[0063] Hereinafter, various embodiments will be provided with respect to the structures at the top of the cover plate and the wire protection box.

[0064] In one embodiment, if Figure 8 and Fig. 9 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, and the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300. The protrusion 310 extends above the top surface of the wire protection box 400 to reduce the gap between the cover plate 300 and the wire protection box 400 to ensure dust protection. The protrusion 310 covers a portion of the top surface of the wire protection box 400, which can be achieved by shortening the protruding length of the protrusion 310 or increasing the thickness of the top of the wire protection box 400.

[0065] In another embodiment, if Figure 6 and Figure 7As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally. The protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300. The protrusion 310 extends above the top surface of the wire protection box 400 to reduce the gap between the cover plate 300 and the wire protection box 400 and ensure the dustproof protection. The protrusion 310 covers the entire top surface of the wire protection box 400, so that the vertical projection of the protrusion 310 on the top surface of the wire protection box 400 in the vertical direction overlaps with the top surface of the wire protection box 400. In this way, the protrusion 310 does not protrude from the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains relatively regular.

[0066] In yet another embodiment, Fig.10 and Fig.11 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally. The protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300. The protrusion 310 extends above the top surface of the wire protection box 400 to reduce the gap between the cover plate 300 and the wire protection box 400 to ensure the dustproof protection. The protrusion 310 covers the entire top surface of the wire protection box 400 and extends to the outside of the top of the wire protection box 400. This can be achieved by extending the protruding length of the protrusion 310 or reducing the thickness of the top of the wire protection box 400, thereby improving the dustproof protection.

[0067] In yet another embodiment, Figure 3 and Figure 4 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally. The protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300. The protrusion 310 extends above the top surface of the wire protection box 400 to reduce the gap between the cover plate 300 and the wire protection box 400, thereby ensuring the dustproof protection. The top surface of the wire protection box 400 is provided with two protruding bumps 410, and the protrusion 310 extends between the two bumps 410. The cover plate 300 is positioned by the two bumps 410, which facilitates the cover plate 300 to be quickly assembled in place, and the bumps 410 can limit the lateral movement of the cover plate 300 on the motor housing 200 to keep it in the correct position.

[0068] Hereinafter, various embodiments will be provided with respect to the structure of the outer side surface of the wire protection box.

[0069] In one embodiment, if Figure 6 and Figure 7 As shown, the outer side of the wire protection box 400 is an arc surface that matches the peripheral surface of the motor housing 200. Specifically, the arc surface can be coaxial with the motor housing 200. This structural design can reduce the thickness of the wire protection box 400 protruding from the motor housing 200, thereby reducing space occupation and making the appearance more beautiful.

[0070] In another embodiment, if Fig.12 and Fig.13 As shown, the outer side surface of the wire protection box 400 is a plane parallel to the axial direction of the output shaft 700. This structure makes the outer side surface of the wire protection box 400 relatively flat and can be adapted to the installation structure with a flat slot to facilitate the installation of the entire motor.

[0071] In yet another embodiment, Figure 3 and Figure 4 As shown, the outer side surface of the wire protection box 400 includes a middle surface 421 and two lateral surfaces 422. The two lateral surfaces 422 are respectively located on both sides of the middle surface 421, and the two lateral surfaces 422 are both connected to the middle surface 421. The two lateral surfaces 422 are both arc-shaped surfaces, and the middle surface 421 is a plane parallel to the axial direction of the output shaft 700.

[0072] Hereinafter, various embodiments will be provided for how to fix the wire protection box at the notch.

[0073] In one embodiment, if Figure 3 and Figure 4 As shown, both sides of the wire protection box 400 are provided with clamping structures 430, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and one outer clamping member 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200. The inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together to limit the radial movement of the wire protection box 400 relative to the motor housing 200 along the motor housing 200, thereby fixing the wire protection box 400. During installation, the wire protection box 400 can be inserted into the notch 201 from the top of the notch 201 to facilitate installation.

[0074] In another embodiment, if Figure 8 and Fig. 9 As shown, both sides of the wire protection box 400 are provided with clamping structures 430, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and two outer clamping members 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200. The inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together to limit the radial movement of the wire protection box 400 relative to the motor housing 200 along the motor housing 200, thereby fixing the wire protection box 400. During installation, the wire protection box 400 can be inserted into the notch 201 from the top of the notch 201 to facilitate installation.

[0075] In yet another embodiment, the above-mentioned clamping structure is disposed on both sides of the wire protection box, and the clamping structure includes an above-mentioned inner clamping member and an above-mentioned outer clamping member.

[0076] In yet another embodiment, the above-mentioned clamping structure is provided on both sides of the wire protection box, and the clamping structure includes one of the above-mentioned inner clamping parts and two of the above-mentioned outer clamping parts.

[0077] Hereinafter, various embodiments will be provided with respect to the relative positional relationship between the top and the bottom of the outer side surface of the wire protection box.

[0078] In one embodiment, if Figure 6 and Figure 7 As shown, the top of the outer side surface of the wire protection box 400 is flush with the bottom of the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains regular and the aesthetics can also be improved.

[0079] In another embodiment, if Fig.10 and Fig.11 As shown, the top of the outer side surface of the wire protection box 400 is recessed inward relative to the bottom of the outer side surface of the wire protection box 400, so that the protrusion 310 on the cover plate 300 can cover the entire top surface of the wire protection box 400 and extend to the outside of the top of the wire protection box 400.

[0080] Hereinafter, various embodiments will be provided for the structure at the cable outlet.

[0081] In one embodiment, if Figure 6 and Figure 7 As shown, the wire outlet 401 is directly arranged on the outer side of the wire protection box 400 .

[0082] In another embodiment, if Fig. 20 and Fig.21 As shown, the outer side of the wire protection box 400 is provided with a notch 403, and the wire outlet 401 is provided on the inner wall of the notch 403. This structure can reduce the thickness of the wire protection box 400 at the wire outlet 401, making it easier to lead out the connecting wires.

[0083] In order to further illustrate the utility model to support the scope of protection defined in the claims, based on the above embodiments, the following will provide various combinations of embodiments for the structure at the top of the cover plate and the wire protection box, the structure of the outer side of the wire protection box, how to fix the wire protection box in the notch, the relative position relationship between the top and bottom of the outer side of the wire protection box, and the structure at the wire outlet.

[0084] Embodiment 1:

[0085] like Figure 3 and Figure 4As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300, and the protrusion 310 extends above the top surface of the wire protection box 400. The top surface of the wire protection box 400 is provided with two protruding bumps 410, and the protrusion 310 extends between the two bumps 410.

[0086] The outer side surface of the wire protection box 400 includes a middle surface 421 and two lateral surfaces 422. The two lateral surfaces 422 are respectively located on both sides of the middle surface 421, and both lateral surfaces 422 are connected to the middle surface 421. Both lateral surfaces 422 are arc-shaped surfaces, and the middle surface 421 is a plane parallel to the axial direction of the output shaft 700.

[0087] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and one outer clamping member 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0088] The top of the outer side surface of the wire protection box 400 is flush with the bottom of the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains regular and the aesthetics can also be improved.

[0089] The wire outlet 401 is directly disposed on the outer side of the wire protection box 400 .

[0090] Embodiment 2:

[0091] like Figure 6 and Figure 7 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, and the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300, and the protrusion 310 extends above the top surface of the wire protection box 400. The protrusion 310 covers the entire top surface of the wire protection box 400, so that the protrusion 310 does not protrude from the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains relatively regular.

[0092] The outer side of the wire protection box 400 is an arc surface adapted to the peripheral surface of the motor housing 200. Specifically, the arc surface can be coaxial with the motor housing 200. This structural design can reduce the thickness of the wire protection box 400 protruding from the motor housing 200, thereby reducing space occupation and making the appearance more beautiful.

[0093] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and one outer clamping member 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0094] The top of the outer side surface of the wire protection box 400 is flush with the bottom of the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains regular and the aesthetics can also be improved.

[0095] The wire outlet 401 is directly disposed on the outer side of the wire protection box 400 .

[0096] Embodiment 3:

[0097] like Figure 8 and Fig. 9 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, and the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300. The protrusion 310 extends above the top surface of the wire protection box 400 to reduce the gap between the cover plate 300 and the wire protection box 400 to ensure dust protection. The protrusion 310 covers a portion of the top surface of the wire protection box 400, which can be achieved by shortening the protruding length of the protrusion 310 or increasing the thickness of the top of the wire protection box 400.

[0098] The outer side surface of the wire protection box 400 includes a middle surface 421 and two lateral surfaces 422. The two lateral surfaces 422 are respectively located on both sides of the middle surface 421, and both lateral surfaces 422 are connected to the middle surface 421. Both lateral surfaces 422 are arc-shaped surfaces, and the middle surface 421 is a plane parallel to the axial direction of the output shaft 700.

[0099] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and two outer clamping members 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0100] The top of the outer side surface of the wire protection box 400 is flush with the bottom of the outer side surface of the wire protection box 400 .

[0101] The outer side of the wire protection box 400 is provided with a notch 403 , and the wire outlet 401 is provided on the inner wall of the notch 403 . This structure can reduce the thickness of the wire protection box 400 at the wire outlet 401 , making it easier to lead out the connecting wires.

[0102] Embodiment 4:

[0103] like Fig.10 and Fig.11 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, and the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300, and the protrusion 310 extends above the top surface of the wire protection box 400. The protrusion 310 covers the entire top surface of the wire protection box 400 and extends to the outside of the top of the wire protection box 400, which can be achieved by extending the protruding length of the protrusion 310 or reducing the thickness of the top of the wire protection box 400, thereby improving the dust protection effect.

[0104] The outer side surface of the wire protection box 400 includes a middle surface 421 and two lateral surfaces 422. The two lateral surfaces 422 are respectively located on both sides of the middle surface 421, and both lateral surfaces 422 are connected to the middle surface 421. Both lateral surfaces 422 are arc-shaped surfaces, and the middle surface 421 is a plane parallel to the axial direction of the output shaft 700.

[0105] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and one outer clamping member 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0106] The top of the outer side of the wire protection box 400 is recessed inward relative to the bottom of the outer side of the wire protection box 400, so that the protrusion 310 on the cover plate 300 can cover the entire top surface of the wire protection box 400 and extend to the outside of the top of the wire protection box 400.

[0107] The wire outlet 401 is directly disposed on the outer side of the wire protection box 400 .

[0108] Embodiment 5:

[0109] like Fig.12 and Fig.13 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, and the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300, and the protrusion 310 extends above the top surface of the wire protection box 400. The protrusion 310 covers the entire top surface of the wire protection box 400, so that the protrusion 310 does not protrude from the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains relatively regular.

[0110] The outer side surface of the wire protection box 400 is a plane parallel to the axial direction of the output shaft 700. This structure makes the outer side surface of the wire protection box 400 relatively flat and can be adapted to the installation structure with a flat slot to facilitate the installation of the entire motor.

[0111] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and one outer clamping member 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0112] The top of the outer side surface of the wire protection box 400 is flush with the bottom of the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains regular and the aesthetics can also be improved.

[0113] The wire outlet 401 is directly disposed on the outer side of the wire protection box 400 .

[0114] Embodiment 6:

[0115] like Fig.14 and Fig.15 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300, and the protrusion 310 extends above the top surface of the wire protection box 400. The top surface of the wire protection box 400 is provided with two protruding bumps 410, and the protrusion 310 extends between the two bumps 410.

[0116] The outer side surface of the wire protection box 400 is a plane parallel to the axial direction of the output shaft 700. This structure makes the outer side surface of the wire protection box 400 relatively flat and can be adapted to the installation structure with a flat slot to facilitate the installation of the entire motor.

[0117] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and two outer clamping members 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0118] The top of the outer side surface of the wire protection box 400 is flush with the bottom of the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains regular and the aesthetics can also be improved.

[0119] The wire outlet 401 is directly disposed on the outer side of the wire protection box 400 .

[0120] Embodiment 7:

[0121] like Fig.16 and Fig.17 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, and the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300, and the protrusion 310 extends above the top surface of the wire protection box 400. The protrusion 310 covers the entire top surface of the wire protection box 400, so that the protrusion 310 does not protrude from the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains relatively regular.

[0122] The outer side surface of the wire protection box 400 includes a middle surface 421 and two lateral surfaces 422. The two lateral surfaces 422 are respectively located on both sides of the middle surface 421, and both lateral surfaces 422 are connected to the middle surface 421. Both lateral surfaces 422 are arc-shaped surfaces, and the middle surface 421 is a plane parallel to the axial direction of the output shaft 700.

[0123] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and one outer clamping member 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0124] The top of the outer side surface of the wire protection box 400 is flush with the bottom of the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains regular and the aesthetics can also be improved.

[0125] The wire outlet 401 is directly disposed on the outer side of the wire protection box 400 .

[0126] Embodiment 8:

[0127] like Fig.18 and Fig.19 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, and the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300, and the protrusion 310 extends above the top surface of the wire protection box 400. The protrusion 310 covers the entire top surface of the wire protection box 400 and extends to the outside of the top of the wire protection box 400, which can be achieved by extending the protruding length of the protrusion 310 or reducing the thickness of the top of the wire protection box 400, thereby improving the dust protection effect.

[0128] A major portion of the outer side surface of the wire protection box 400 is a plane parallel to the axial direction of the output shaft 700 .

[0129] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and one outer clamping member 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0130] The top of the outer side of the wire protection box 400 is recessed inward relative to the bottom of the outer side of the wire protection box 400, so that the protrusion 310 on the cover plate 300 can cover the entire top surface of the wire protection box 400 and extend to the outside of the top of the wire protection box 400.

[0131] The wire outlet 401 is directly disposed on the outer side of the wire protection box 400 .

[0132] Embodiment 9:

[0133] like Fig. 20 and Fig.21 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, and the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300, and the protrusion 310 extends above the top surface of the wire protection box 400. The protrusion 310 covers the entire top surface of the wire protection box 400, so that the protrusion 310 does not protrude from the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains relatively regular.

[0134] The main part of the outer side surface of the wire protection box 400 is a plane parallel to the axial direction of the output shaft 700 .

[0135] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and one outer clamping member 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0136] The top of the outer side surface of the wire protection box 400 is flush with the bottom of the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains regular and the aesthetics can also be improved.

[0137] A notch 403 is disposed on the outer side of the wire protection box 400 , and the wire outlet 401 is disposed on the inner wall of the notch 403 .

[0138] Embodiment 10:

[0139] like Fig. 22 and Fig.23As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300, and the protrusion 310 extends above the top surface of the wire protection box 400. The top surface of the wire protection box 400 is provided with two protruding bumps 410, and the protrusion 310 extends between the two bumps 410.

[0140] The outer side surface of the wire protection box 400 is a plane parallel to the axial direction of the output shaft 700. This structure makes the outer side surface of the wire protection box 400 relatively flat and can be adapted to the installation structure with a flat slot to facilitate the installation of the entire motor.

[0141] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and one outer clamping member 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0142] The top of the outer side surface of the wire protection box 400 is flush with the bottom of the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains regular and the aesthetics can also be improved.

[0143] The wire outlet 401 is directly disposed on the outer side of the wire protection box 400 .

[0144] Embodiment 11:

[0145] like Fig.24 and Fig.25 As shown, the cover plate 300 includes a protrusion 310 protruding outward laterally, and the protrusion 310 can be integrally formed with the cover plate 300 and protrude from the outer peripheral surface of the cover plate 300, and the protrusion 310 extends above the top surface of the wire protection box 400. The protrusion 310 covers the entire top surface of the wire protection box 400, so that the protrusion 310 does not protrude from the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains relatively regular.

[0146] The outer side of the wire protection box 400 is an arc surface adapted to the peripheral surface of the motor housing 200. Specifically, the arc surface can be coaxial with the motor housing 200. This structural design can reduce the thickness of the wire protection box 400 protruding from the motor housing 200, thereby reducing space occupation and making the appearance more beautiful.

[0147] A clamping structure 430 is provided on both sides of the wire protection box 400, and the two clamping structures 430 are respectively used to clamp the motor housing 200 on both sides of the notch 201. The clamping structure 430 includes two inner clamping members 431 and two outer clamping members 432, the inner clamping member 431 is located on the inner side of the motor housing 200, and the outer clamping member 432 is located on the outer side of the motor housing 200, and the inner clamping member 431 and the outer clamping member 432 clamp the motor housing 200 together.

[0148] The top of the outer side surface of the wire protection box 400 is flush with the bottom of the outer side surface of the wire protection box 400, so that the outer side surface of the wire protection box 400 remains regular and the aesthetics can also be improved.

[0149] The wire outlet 401 is directly disposed on the outer side of the wire protection box 400 .

[0150] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. A small motor that is easy to assemble, characterized in that: It includes a stator frame, an upper pole plate and a gear plate. The stator frame includes a coil frame for winding a coil and a wire outlet seat connected to the coil frame; a plurality of positioning posts are arranged on the top surface of the coil frame, the upper pole plate is provided with a first positioning hole penetrating through the upper pole plate and matching with the positioning posts, the gear plate is provided with a second positioning hole matching with the positioning posts, the upper pole plate is placed on the top surface of the coil frame, the gear plate is placed on the top surface of the upper pole plate, and the positioning posts pass through the first positioning holes and are inserted into the second positioning holes.

2. The small motor that is easy to assemble according to claim 1 is characterized in that: It also includes a motor housing, a cover plate, a circuit board and a wire protection box; an opening is provided on the top of the motor housing, and a notch is provided on the side of the motor housing; the coil skeleton, the upper pole plate and the gear plate are all arranged in the motor housing, and the cover plate is connected to the motor housing and covers the opening; the wire outlet seat is located at the notch, the circuit board is fixed on the wire outlet seat, the wire protection box is fixed at the notch and the wire outlet seat and the circuit board cover are arranged inside, and the wire protection box is provided with a through wire outlet.

3. The small motor that is easy to assemble according to claim 2 is characterized in that: It also includes multiple gears and output shafts, which are all installed on the gear plate and can rotate relative to the gear plate, and one of the gears is engaged with the output shaft; the cover plate is provided with a through hole, and the output shaft is inserted in the through hole; the inner side edge of the top of the wire protection box is provided with a avoidance groove for avoiding the gear.

4. The small motor that is easy to assemble according to claim 2 or 3, characterized in that: The cover plate includes a protrusion that protrudes outward laterally, and the protrusion extends above the top surface of the wire protection box; The protrusion covers a portion of the top surface of the wire protection box; or, the protrusion covers the entire top surface of the wire protection box; or, the protrusion covers the entire top surface of the wire protection box and extends to the outside of the top of the wire protection box; or, the top surface of the wire protection box is provided with two protruding bumps, and the protrusion extends between the two bumps.

5. The small motor that is easy to assemble according to claim 2 or 3, characterized in that: The outer side surface of the wire protection box is an arcuate surface that matches the circumferential surface of the motor housing; or, the outer side surface of the wire protection box is a plane parallel to the axial direction of the output shaft; or, the outer side surface of the wire protection box includes a middle surface and two lateral surfaces, the two lateral surfaces are respectively located on both sides of the middle surface, and the two lateral surfaces are connected to the middle surface, the two lateral surfaces are both arcuate surfaces, and the middle surface is a plane parallel to the axial direction of the output shaft.

6. The small motor that is easy to assemble according to claim 2 or 3, characterized in that: Both sides of the wire protection box are provided with clamping structures, and the two clamping structures are respectively used to clamp the motor housing on both sides of the notch; the clamping structure includes an inner clamping part and an outer clamping part, the inner clamping part is located on the inner side of the motor housing, and the outer clamping part is located on the outer side of the motor housing, and the inner clamping part and the outer clamping part jointly clamp the motor housing; one or more inner clamping parts are provided, and one or more outer clamping parts are provided.

7. The small motor that is easy to assemble according to claim 2 or 3, characterized in that: The top of the outer side surface of the wire protection box is flush with the bottom of the outer side surface of the wire protection box, or the top of the outer side surface of the wire protection box is recessed inwardly relative to the bottom of the outer side surface of the wire protection box.

8. The small motor that is easy to assemble according to claim 2 or 3, characterized in that: The outer side surface of the wire protection box is provided with a notch, and the wire outlet is arranged on the inner wall of the notch.

9. The small motor that is easy to assemble according to claim 2 or 3, characterized in that: The upper pole plate is provided with a plurality of upper pole claws extending downward, the inner bottom wall of the motor housing is provided with a plurality of lower pole claws extending upward, the coil frame is provided with a penetrating center hole, and the upper pole claws and the lower pole claws both extend into the center hole.

10. The small motor that is easy to assemble according to claim 3 is characterized in that: The surface of the top end of the output shaft is provided with threads.

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