TWI747350B - Motor - Google Patents

Abstract

The invention discloses a motor, which includes a housing, an electronics assembly, an end cover and a protective assembly. The electronics assembly is disposed in the housing, the end cover is fixed to one end of the housing, and the rotating shaft of the electronics assembly is passed through the first shaft hole of the end cover, and one side of the end cover has a ring-shaped fixing structure. The protective assembly includes a fixed member, an inner elastic seal, an outer elastic seal and an elastic outer cover. The elastic outer cover is sleeved on the ring-shaped fixing structure of the end cover, and the fixing member, the inner elastic sealing member and the outer elastic sealing member are disposed therein. The two ends of the fixing member respectively have a second accommodating groove and an engaging structure, the inner elastic sealing member and the engaging structure are engaged with each other, and the outer elastic sealing member is disposed in the second accommodating groove. The rotating shaft passes through the end cover, the inner elastic seal, the fixing member, the outer elastic seal and the elastic outer cover, and is exposed to the elastic outer cover.

Description

motor

The invention relates to a motor, in particular to a motor suitable for use on a waterwheel.

Existing common motors used on waterwheels often encounter problems such as damage to the motor due to external liquid entering the motor along the rotating shaft of the motor.

The invention discloses a motor, which is mainly used to improve the existing motor applied to a waterwheel. The external liquid can easily enter the inside of the motor along the rotating shaft of the motor, thereby causing problems such as damage to the motor.

One embodiment of the present invention discloses a motor, which includes a housing, a motor motor, an end cover, and a protective component. The housing has a motor containing slot, the housing has an opening through which the first slot can communicate with the outside; the motor is arranged in the motor containing slot, the motor motor includes a rotor, a stator and a rotating shaft; the end cover is removable Ground is fixed to the housing to close the opening. The opposite sides of the end cover are respectively defined as an inner end surface and an outer end surface. The end cover has a first shaft hole through which the shaft hole penetrates the end cover. A ring-shaped fixing structure, the ring-shaped fixing structure is arranged around the shaft hole, one end of the ring-shaped fixing structure is concavely formed with a first receiving groove; a protection component includes: a fixing part, an outer elastic sealing part, an inner elastic sealing part and An elastic outer cover. The fixing piece is detachably fixed to the ring-shaped fixing structure; the fixing piece has a shaft hole through which the shaft hole penetrates the fixing piece. The opposite ends of the fixing piece are respectively concavely formed with a second receiving groove and convexly formed with an engaging structure, The second receiving groove and the shaft hole are in communication with each other; the outer elastic sealing member is detachably arranged in the second receiving groove, the outer elastic sealing member has a second central perforation; the inner elastic sealing member is detachably engaged with the engaging structure, And the inner elastic sealing element is clamped in the first cavity, the inner elastic sealing element has a first central perforation; and an elastic outer cover, the elastic outer cover has a third central perforation, and the elastic outer cover is sleeved in the ring Outside the fixed structure, the fixed part, the outer elastic sealing part, and the inner elastic sealing part are located between the elastic outer cover and the ring-shaped fixed structure; wherein, the rotating shaft penetrates the first shaft hole, the shaft hole, the second central perforation, and the first shaft hole. A central perforation and a third central perforation, and the outer elastic sealing element, inner elastic sealing element and elastic outer cover are tightly abutted against the outside of the rotating shaft, while the outer elastic sealing element, inner elastic sealing element and elastic outer cover are used for Prevent external liquid from entering the motor housing along the rotating shaft.

To sum up, the motor of the present invention can greatly improve the waterproof ability of the motor as a whole through the design of the fixing member, inner elastic sealing member, outer elastic sealing member, and elastic outer cover included in the protective assembly, and especially reduce the liquid outside the motor. The probability of entering the motor containing groove along the rotating shaft, and the motor of the present invention has a longer service life than the motor currently applied to the waterwheel.

In order to further understand the features and technical content of the present invention, please refer to the following detailed descriptions and drawings about the present invention, but these descriptions and drawings are only used to illustrate the present invention, and do not make any claims about the protection scope of the present invention. limit.

In the following description, if it is pointed out, please refer to the specific drawing or as shown in the specific drawing, it is only used to emphasize in the subsequent description, and most of the related content appears in the specific drawing. However, it is not limited that only the specific drawings can be referred to in this subsequent description.

Please refer to FIGS. 1 to 4 together. FIG. 1 is a schematic diagram of the motor of the present invention, FIG. 2 is a partial exploded schematic view of the motor of the present invention, and FIGS. 3 and 4 are the end cover 3 and the protective assembly 4 of the motor of the present invention. An exploded schematic view of different perspectives. The motor M of the present invention includes a housing 1, a motor motor 2, an end cover 3 and a protection component 4.

The housing 1 has a motor accommodating slot 1A, the housing 1 has an opening 1B, and the motor accommodating slot 1A can communicate with the outside through the opening 1B. The motor motor 2 is arranged in the motor housing slot 1A, and the motor motor 2 includes a rotor 21, a stator 22 and a rotating shaft 23. The rotor 21 and the rotating shaft 23 are fixed to each other. When the motor M is energized, the rotor 21 and the rotating shaft 23 can rotate relative to the stator 22. The specific forms of the rotor 21 and the stator 22 can be changed according to requirements, and the figure shown is only one of the exemplary modes.

The end cover 3 may be detachably fixed to one end of the housing 1 by a plurality of screws S, and the end cover 3 is used to close the opening 1B, so that the motor motor 2 is enclosed in the motor accommodating slot 1A. The opposite sides of the end cover 3 are respectively defined as an outer end surface 31 and an inner end surface 32. The end cover 3 has a first shaft hole 3A. The first shaft hole 3A penetrates the end cover 3, and the outer end surface 31 of the end cover 3 faces A ring-shaped fixing structure 33 is formed extending outward, and the ring-shaped fixing structure 33 is arranged around the first shaft hole 3A. One end of the ring-shaped fixing structure 33 is concavely formed with a first receiving groove 3B. The inner diameter of the first shaft hole 3A is larger than the outer diameter of the rotating shaft 23, and the first shaft hole 3A is used to provide the rotating shaft 23 through.

The protection assembly 4 includes: a fixing member 41, an inner elastic sealing member 42, an outer elastic sealing member 43, an elastic outer cover 44 and a plurality of locking members 45. The end cover 3 has a plurality of first locking holes 3C, and the plurality of first locking holes 3C are located in the first accommodating groove 3B. The fixing member 41 has a plurality of second locking holes 41A corresponding to the plurality of first locking holes 3C. The plurality of locking members 45 are locked to each other with the plurality of first locking holes 3C and the plurality of second locking holes 41A, and the fixing member 41 is detachably fixed to the annular fixing structure 33. The number of the first lock hole 3C and the second lock hole 41A is not limited to that shown in the figure. The fixing member 41 also has a second shaft hole 41B. The second shaft hole 41B penetrates the fixing member 41. The opposite ends of the fixing member 41 are respectively concavely formed with a second receiving groove 41C and convexly formed with an engaging structure 411. The second receiving groove 41C and the second shaft hole 41B communicate with each other.

The inner elastic sealing element 42 is detachably engaged with the engaging structure 411, and the inner elastic sealing element 42 is engaged in the first receiving groove 3B. The inner elastic sealing element 42 has a first central perforation 42A, and the first central perforation 42A is provided through the inner elastic sealing member 42. The aperture of the first central hole 42A is larger than the outer diameter of the rotating shaft 23, and the first central hole 42A is used to provide the rotating shaft 23 through. In practical applications, the outer diameter of the inner elastic sealing member 42 may be slightly larger than the inner diameter of the first receiving groove 3B, and the inner elastic sealing member 42 may be tightly fitted in the first receiving groove 3B.

The outer elastic sealing member 43 is detachably disposed in the second container 41C. The outer elastic sealing member 43 has a second central through hole 43A. The second central through hole 43A penetrates the outer elastic sealing member 43. The inner diameter of the second housing 41C is The hole diameter of the second central hole 43A is larger than that of the second central hole 43A, and the hole diameter of the second central hole 43A is not smaller than the outer diameter of the rotating shaft 23. The second central hole 43A is used to provide the rotating shaft 23 through. In practical applications, the outer diameter of the outer elastic sealing member 43 may be slightly larger than the inner diameter of the second receiving groove 41C, and the outer elastic sealing member 43 and the second receiving groove 41C are arranged in a tight fit to engage with each other.

The elastic outer cover 44 has a third central through hole 44A, and the third central through hole 44A penetrates the elastic outer cover 44. The elastic outer cover 44 also has a third accommodating groove 44B. The elastic outer cover 44 is sleeved outside the annular fixing structure 33 through the third accommodating groove 44B, and the fixing member 41, the outer elastic sealing member 43 and the inner elastic sealing member 42 correspond to It is located between the elastic outer cover 44 and the annular fixing structure 33 (as shown in FIG. 7 ), and the plurality of first locking holes 3C, the second locking holes 41A, and the plurality of locking members 45 are shielded by the elastic outer cover 44. In practical applications, the inner diameter of the third receiving groove 44B may be slightly smaller than the outer diameter of the annular fixing member 41, and the third receiving groove 44B may be sleeved outside the annular fixing structure 33 in a tight-fitting manner. In practical applications, the end cover 3 and the fixing member 41 can be made of metal or high-hardness plastic material, while the inner elastic sealing member 42, the outer elastic sealing member 43, and the elastic outer cover 44 are made of elastically deformable materials. Made of, for example: rubber, silicone, etc.

Please refer to FIG. 7 first, which shows a partial cross-sectional side view of the motor M of the present invention. As shown in the figure, the rotating shaft 23 is penetrated through the first shaft hole 3A, the second shaft hole 41B, the first central hole 42A, the second central hole 43A and the third central hole 44A, and the outer elastic seal 43, the inner The elastic sealing element 42 and the elastic outer cover 44 are tightly abutted against the outside of the rotating shaft 23, and the outer elastic sealing element 43, the inner elastic sealing element 42 and the elastic outer cover 44 are used to prevent external liquid from entering the motor along the rotating shaft 23 Container 1A.

As mentioned above, the motor M of the present invention can greatly improve the waterproof performance of the motor M through the design of the fixing member 41, the inner elastic sealing member 42, the outer elastic sealing member 43, and the elastic outer cover 44 included in the protective assembly 4 The ability, especially, can greatly reduce the probability that the liquid outside the motor M enters the motor containing tank 1A through the rotating shaft 23. Since the motor M of the present invention has a better waterproof effect, the motor M of the present invention is particularly suitable for application as a waterwheel motor.

As shown in FIGS. 3 and 4, it is worth mentioning that in a preferred embodiment, the plurality of second lock holes 41A are provided through the fixing member 41, and the engaging structure 411 corresponds to the plurality of second locks. The hole 41A has a plurality of first avoiding notches 41D, and when each locking member 45 and each second locking hole 41A are mutually locked, a part of each locking member 45 passes through one of the first avoiding notches 41D. The inner elastic seal 42 has a plurality of second avoidance notches 42B corresponding to the plurality of first avoidance notches 41D. When each locking member 45 is locked with each first locking hole 3C, a part of each locking member 45 passes through one of the first locking holes 3C. Second, avoid gap 42B. By making the engaging structure 411 have a plurality of first avoiding notches 41D and the inner elastic sealing member 42 having a plurality of second avoiding notches 42B, it is possible to prevent the plurality of locking members 45 from penetrating the inner elastic sealing member 42. In this way, Prevent the inner elastic sealing member 42 from being damaged by the locking member 45. In more detail, if multiple locking members 45 pass through the inner elastic sealing member 42, the inner elastic sealing member 42 is used to provide a perforation (or key hole) through which the locking member 45 passes, which may cause external liquid to enter the motor. Therefore, the path in the pocket 1A is designed with a plurality of first avoiding notches 41D and a plurality of second avoiding notches 42B, etc., so that the waterproofness of the motor M can be relatively improved.

Please refer to FIGS. 3 to 7 together. FIG. 5 is a schematic partial cross-sectional view of the fixing member and inner elastic seal of the motor of the present invention, and FIG. 6 is a partial exploded cross-sectional view of the motor of the present invention. As shown in the figure, in a preferred embodiment, the fixing member 41 may include a body 412 and an annular wall 413, and the opposite ends of the body 412 of the fixing member 41 are defined as an outer end surface 4121 and an inner end surface 4121. The end surface 4122 and the outer end surface 4121 are recessed inward to form the second receiving groove 41C. The inner end surface 4122 of the body 412 of the fixing member 41 extends outward to form the annular wall 413 and the aforementioned engaging structure 411, and the annular wall 413 It is arranged around the engaging structure 411. The position of the engaging structure 411 adjacent to the inner end surface 4122 is recessed to form an inner annular groove 41E. More specifically, an outer ring side surface 4111 of the engaging structure 411 is recessed inward at a position adjacent to the body 412 to form the inner ring. Annular groove 41E. Wherein, the height of the annular wall 413 of the fixing member 41 relative to the inner end surface 4122 is not less than the depth of the inner ring mounting groove".

The inner elastic seal 42 includes a main body 421 and an annular wall 422. The aforementioned first central hole 42A penetrates the main body 421 of the inner elastic seal 42. The opposite ends of the main body 421 of the inner elastic seal 42 are defined as An outer end surface 4211 and an inner end surface 4212. The outer end surface 4211 of the body 421 of the inner elastic seal 42 extends outward to form a ring-shaped wall 422. The ring-shaped wall 422 and the body 421 together form an engaging groove 42C for engaging the container. The groove 42C is used for engaging with the engaging structure 411 with each other. The end of the annular wall 422 of the inner elastic seal 42 away from the main body 421 extends inward to form an inner annular protrusion 423, and the inner annular protrusion 423 is used for engaging with the inner annular groove 41E. In practical applications, the size of the inner annular protrusion 423 may be slightly larger than the size of the inner annular groove 41E, and the inner annular protrusion 423 and the inner annular groove 41E are tightly engaged with each other.

The inner end surface 4212 of the body 421 of the inner elastic seal 42 also extends outward to form an inner ring-shaped sealing portion 424. The inner ring-shaped sealing portion 424 is used to be disposed in the first shaft hole 3A, and the inner ring-shaped sealing portion 424 is formed by The diameter of the surrounding opening is smaller than the outer diameter of the rotating shaft 23, and when the rotating shaft 23 passes through the first central through hole 42A, the inner annular sealing portion 424 tightly abuts the outer side surface 231 of the rotating shaft 23.

As shown in Figure 6, when the fixing member 41 is fixed to one side of the ring-shaped fixing structure 33 by the locking member 45, the inner elastic sealing member 42 will be clamped by the end cover 3 and the fixing member 41, and the inner elastic sealing member 42 The inner annular convex portion 423 will correspondingly engage with the inner annular groove 41E, and the inner annular sealing portion 424 of the inner elastic seal 42 is correspondingly disposed in the first shaft hole 3A. In addition, when the fixing member 41 is fixed to each other with the annular fixing structure 33 of the end cap 3 through the plurality of locking members 45, the one end surface 341 of the annular abutting structure 34 will abut the inner end surface 4122 of the fixing member 41, and The annular wall 413, the annular abutment structure 34, and the annular fixing structure 33 of the fixing member 41 together form an outer annular groove SL.

The elastic outer cover 44 includes a body 441 and an annular wall 442. The opposite ends of the body 441 are defined as an outer end surface 4411 and an inner end surface 4412, respectively. The outer end surface 4411 of the body 441 of the elastic outer cover 44 extends outward to form An auxiliary ring-shaped wall 443 is arranged around the third central through hole 44A, and the auxiliary ring-shaped wall 443 extends inwardly away from the end of the main body 441 to form an outer ring-shaped sealing portion 444. In practical applications, the opening diameter of the outer ring-shaped sealing portion 444 is smaller than the outer diameter of the rotating shaft 23, and when the rotating shaft 23 penetrates through the third central hole 44A, the outer ring-shaped sealing portion 444 tightly abuts On the outer side 231 of the rotating shaft 23.

The inner end surface 4412 of the main body 441 of the elastic outer cover 44 extends outward to form an annular wall 442, and the annular wall 442 extends inwardly from the end of the main body 441 to form an outer annular convex portion 445. The outer annular convex portion 445 is used to engage with the aforementioned outer annular groove SL. In practical applications, the size of each outer annular convex portion 445 may be slightly larger than the size of the outer annular groove SL, and the outer ring The convex portions 445 may be engaged with each other in a tight-fitting manner. In addition, the inner end surface 4412 of the main body 441 of the elastic outer cover 44 may also extend outward to form two auxiliary ring-shaped protrusions 446. The two auxiliary ring-shaped protrusions 446 are arranged around the third central perforation 44A, and each auxiliary ring-shaped The height of the convex portion 446 relative to the inner end surface 4412 is smaller than the height of the annular wall 442 relative to the inner end surface 4412. Wherein, the number of auxiliary annular protrusions 446 included in the elastic outer cover 44 can be increased or decreased according to requirements, and the figure shown is only one of the exemplary aspects. In a preferred embodiment, the height of each auxiliary annular convex portion 446 relative to the inner end surface 4412 may be determined according to geometric dimensions such as the thickness of the fixing member 41 and the height of the annular wall 442 of the elastic outer cover 44, and accordingly When the outer annular protrusion 445 of the elastic outer cover 44 is engaged with the outer annular groove SL, the plurality of auxiliary annular protrusions 446 tightly abut the outer end surface 4121 of the fixing member 41, which can effectively prevent The external liquid enters the rotating shaft 23.

It is worth mentioning that the part of the rotating shaft 23 adjacent to the elastic outer cover 44 may also be formed with a ring-shaped protruding structure 232. The outer diameter of the protruding structure 232 is larger than that of the remaining sections of the rotating shaft 23. When the elastic outer cover 44 is sleeved on the ring-shaped fixing structure 33, a part of the elastic outer cover 44 will closely abut against the protruding structure 232, so as to reduce the external liquid entering the motor M along the rotating shaft 23. internal.

As described above, please refer to FIG. 7, the motor M of the present invention passes through the outer annular sealing portion 444 of the elastic outer cover 44, the protruding structure 232 of the rotating shaft 23, the inner annular sealing portion 424 of the inner elastic seal 42 and The design of the outer elastic seal 43, etc., will greatly reduce the probability that the liquid outside the motor M will enter the interior of the motor M from the rotating shaft 23 along the X-axis direction as shown in FIG. When 23 enters the interior of the motor M along the X-axis direction shown in FIG. 7, the liquid will be successively received by the outer annular sealing portion 444, the portion of the elastic outer cover 44 that abuts against the protruding structure 232, and the inner elastic sealing member 42. At least 4 layers of related protective structures, such as the outer elastic seal 43, are blocked.

In addition, the motor M of the present invention is designed with the outer annular convex portion 445, the annular abutment structure 34, the auxiliary annular convex portion 446, and the inner annular convex portion 423, etc., which can greatly reduce the liquid outside the motor M from being elastic. The probability that the cover 44 enters the motor M along the Y-axis direction shown in FIG. 7; in other words, when the liquid outside the motor M is to enter the motor M along the Y-axis direction shown in FIG. It will be blocked by at least four layers of related protective structures including the outer annular protrusion 445, the annular abutment structure 34, the auxiliary annular protrusion 446, and the inner annular protrusion 423 one after another. Therefore, no matter whether the liquid outside the motor M is along the X-axis direction or the Y-axis direction as shown in FIG. Good water resistance.

Please refer to FIGS. 3 to 6 and FIGS. 8 to 13 together. FIGS. 8 to 13 show schematic diagrams of the process of disassembling the fixing member, the inner elastic sealing member and the outer elastic sealing member of the motor of the present invention. As shown in FIGS. 3 and 5, the fixing member 41 may also include a plurality of auxiliary lock holes 41F, each auxiliary lock hole 41F is a threaded penetration hole, and the plurality of auxiliary lock holes 41F are dispersedly formed in the fixing member 41; In practical applications, each auxiliary lock hole 41F may be arranged between two adjacent second lock holes 41A. Each auxiliary lock hole 41F is used to provide a plurality of auxiliary lock members 46 (such as screws) for locking, so that the user can pull out the auxiliary lock member 46 that is mutually locked with the plurality of auxiliary lock holes 41F, and relatively easily The fixing member 41, the inner elastic sealing member 42 and the outer elastic sealing member 43 are pulled out of the end cover 3 together.

More specifically, as shown in FIGS. 1, 8 and 9, when the user wants to remove the fixing member 41, the inner elastic sealing member 42, and the outer elastic sealing member 43 from the end cap 3, the user can be First, pull the elastic outer cover 44 away from the end cover 3, so that the fixing member 41 and the plurality of locking members 45 locked thereon are exposed. As shown in FIG. 10, the user can then use related tools (such as a screwdriver) to remove the plurality of fasteners 45 from the fixing member 41.

In particular, please refer to Figures 6 and 7, because a part of the inner elastic seal 42 is snap-fitted in the first cavity 3B of the end cap 3, and a part of the inner elastic seal 42 is snap-fitted. In the first shaft hole 3A, therefore, in the state shown in FIG. 10, even if the plurality of locking members 45 have been removed from the fixing member 41, it is still difficult for the user to pull the fixing member 41 away from the end cap 3 with bare hands. In addition, if the user uses other tools (such as various types of pliers) to clamp the fixing member 41 to pull the fixing member 41 away from the end cap 3, this method may cause damage to the fixing member 41, and it is not easy in practical applications. Implement.

As shown in FIGS. 11 to 13, since the fixing member 41 of the motor M mentioned in this embodiment has a plurality of auxiliary lock holes 41F, in the case shown in FIG. 10, the user can then add a plurality of auxiliary lock holes 41F The locking member 46 is locked in the plurality of auxiliary locking holes 41F, so that the user can clamp the plurality of auxiliary locking members 46 with related tools (such as various pliers), so that the fixing member 41 and the inner elasticity can be relatively easily The sealing element 42 and the outer elastic sealing element 43 are pulled away from the end cover 3.

In practical applications, each second lock hole 41A and each auxiliary lock hole 41F have the same hole diameter, and the plurality of locking members 45 included in the protection assembly 4 can be mutually locked with the plurality of auxiliary lock holes 41F, that is, That is, in the state shown in FIG. 10, after the user removes the fasteners 45 originally locked in the plurality of second keyholes 41A, they can directly lock the plurality of fasteners 45 to the plurality of auxiliary The locking hole 41F, and then, the user can pull the locking member 45 locked in the plurality of auxiliary locking holes 41F with the relevant tool, so as to pull the fixing member 41, the inner elastic sealing member 42 and the outer elastic sealing member 43 away from the end Cover 3.

It is worth mentioning that, since each of the locking members 45 is used to lock the fixing member 41 to the end cover 3, in a preferred embodiment, each of the locking members 45 and each of the auxiliary locking members 46 may be of different sizes. 11, the user uses other screws to lock in the plurality of auxiliary lock holes 41F, so if the user pulls the plurality of auxiliary locks 46 with a tool, the plurality of auxiliary locks 46 The screw of the locking member 46 is damaged, and it will not affect the sealing performance of the subsequent user when the fixing member 41 is locked to the end cover 3. That is to say, if the auxiliary locking member 46 and the locking member 45 are exactly the same screws, When the thread of the screw is damaged, the screw can no longer lock the fixing member 41 to the end cover 3.

As mentioned above, by providing multiple auxiliary lock holes 41F in the fixing member 41, it is convenient for the user to disassemble the fixing member 41, the inner elastic sealing member 42, and the outer elastic sealing member 43, while the user is disassembling the fixing member 41 , In the process of the inner elastic sealing member 42 and the outer elastic sealing member 43, the tool used by the user may not clamp the fixing member 41 at all, and when the fixing member 41 is detached from the end cover 3, the fixing member 41 will not Therefore, it can be ensured that when the fixing member 41 is locked to the end cover 3 again, the fixing member 41 and the elastic outer cover 44 still maintain the same sealing performance.

More specifically, as mentioned above, since the outer annular convex portion 445 of the elastic outer cover 44 is engaged in the outer annular groove SL formed by the fixing member 41 and the end cover 3, In the embodiment where the member 41 is not provided with the auxiliary lock hole 41F, if the user uses tools such as pliers to clamp the outer edge of the fixing member 41 to pull the fixing member 41, the inner elastic sealing member 42 and the outer elastic sealing member 43 away The end cover 3, and during the operation, tools such as pliers damage the outer edge of the fixing member 41, so that the outer annular protrusion 445 of the elastic outer cover 44 may not be tightly engaged with the fixing member 41 and In the outer annular groove SL jointly formed by the end caps 3, the water resistance of the motor M may be reduced. Therefore, the above-mentioned fixing member 41 is additionally provided with a plurality of auxiliary lock holes 41F and designed to cooperate with a plurality of auxiliary locking members 46, etc., which can reduce the probability of damage to the fixing member 41 during the process of being pulled out of the end cover 3, and can This ensures that the fixing member 41 is locked to the end cover 3 again, and the elastic outer cover 44 is sleeved on the ring-shaped fixing structure 33 for waterproofness.

In summary, the motor M of the present invention can greatly improve the overall waterproofness of the motor M through the design of the end cover 3 and the protective assembly 4, and in particular, can greatly reduce the water vapor outside the motor M entering the motor through the rotating shaft 23 In addition, the motor M of the present invention is designed to additionally provide a plurality of auxiliary lock holes 41F in the fixing member 41, so that the user can pull the fixing member 41 away from the end cover 3 relatively easily.

The above are only the preferred and feasible embodiments of the present invention, which do not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the protection scope of the present invention. .

M: Motor 1: shell 1A: Motor tolerance 1B: opening 2: Motor motor 21: Rotor 22: stator 23: Rotation axis 231: Outer Side 232: protruding structure 3: end cap 3A: The first shaft hole 3B: The first container 3C: The first keyhole 31: Outer end face 32: inner end face 33: Ring fixed structure 34: Ring abutment structure 341: end face 4: Protective components 41: fixed parts 41A: The second keyhole 41B: second shaft hole 41C: second container 41D: The first avoidance gap 41E: inner ring groove 41F: Auxiliary keyhole 411: Snap structure 4111: outer ring side 412: body 4121: Outer face 4122: inner end face 413: Ring Wall 42: inner elastic seal 42A: First center perforation 42B: The second avoidance gap 42C: Snap-in slot 421: Body 4211: outer end face 4212: inner end face 422: Ring Wall 423: inner ring convex 424: inner ring seal 43: Outer elastic seal 43A: second center perforation 44: Flexible outer cover 44A: Third center perforation 44B: third container 441: ontology 4411: outer end face 4412: inner end face 442: Ring Wall 443: Auxiliary Ring Wall 444: Outer ring seal 445: Outer ring convex 446: Auxiliary Ring Convex 45: lock firmware 46: auxiliary lock firmware S: Screw SL: outer ring groove

Fig. 1 is a schematic diagram of the motor of the present invention.

Figure 2 is a partial exploded schematic view of the motor of the present invention.

3 and 4 are exploded schematic views of the end cover and the protective component of the motor of the present invention from different perspectives.

Fig. 5 is a schematic partial cross-sectional view of the fixing member and the inner elastic sealing member of the motor of the present invention.

Fig. 6 is a schematic partial exploded cross-sectional view of the motor of the present invention.

Fig. 7 is a partial cross-sectional side view of the motor of the present invention.

8 to 13 are schematic diagrams of the process of disassembling the fixing member, the inner elastic sealing member and the outer elastic sealing member of the motor of the present invention.

3: end cap

3A: The first shaft hole

3B: The first container

3C: The first keyhole

31: Outer end face

33: Ring fixed structure

34: Ring abutment structure

341: end face

4: Protective components

41: fixed parts

41A: The second keyhole

41B: second shaft hole

41C: second container

41F: Auxiliary keyhole

413: Ring Wall

42: inner elastic seal

42A: First center perforation

42B: The second avoidance gap

42C: Snap-in slot

43: Outer elastic seal

43A: second center perforation

44: Flexible outer cover

44A: Third center perforation

45: lock firmware

Claims (11)

A motor, comprising: a housing with a motor accommodating tank inside, the housing having an opening, the motor accommodating tank can communicate with the outside through the opening; a motor motor, which is arranged on the motor A container, the motor includes a rotor, a stator, and a rotating shaft; an end cover, which is detachably fixed to the housing to close the opening, and the opposite sides of the end cover are defined as An inner end surface and an outer end surface, the end cover has a first shaft hole, the first shaft hole penetrates the end cover, the outer end surface extends outward to form a ring-shaped fixing structure, the ring-shaped fixing The structure is arranged around the first shaft hole, and one end of the ring-shaped fixing structure is concavely formed with a first receiving groove; Fixed; the fixing piece has a second shaft hole, the second shaft hole penetrates the fixing piece, the opposite ends of the fixing piece are concavely formed with a second receiving groove and convexly formed with a clamping Structure, the second containing groove and the first shaft hole are in communication with each other; an outer elastic sealing element is detachably arranged in the second containing groove, and the outer elastic sealing element has a second central perforation; An inner elastic sealing element that is detachably engaged with the engaging structure, and the inner elastic sealing element is engaged in the first receiving groove, and the inner elastic sealing element has a first central perforation And an elastic outer cover, which has a third central perforation, the elastic outer cover is sleeved outside the annular fixing structure, and the fixing member, the outer elastic sealing member and the inner elastic sealing member Located between the elastic outer cover and the annular fixing structure; Wherein, the rotating shaft penetrates through the first shaft hole, the second shaft hole, the second central perforation, the first central perforation, and the third central perforation, and the outer elastic seal The inner elastic sealing member, and the elastic outer cover all tightly abut against the outside of the rotating shaft, and the outer elastic sealing member, the inner elastic sealing member and the elastic outer cover are used to prevent The external liquid enters the motor accommodating groove along the rotating shaft; wherein an outer annular groove is formed between the fixing member and the annular fixing structure, and an end of an annular wall of the elastic outer cover An outer annular convex portion is formed extending inward, and the outer annular convex portion is engaged with the outer annular groove. The motor according to claim 1, wherein one end surface of the ring-shaped fixing structure extends outward to form a ring-shaped abutting structure, and the outer diameter of the ring-shaped abutting structure is smaller than the outer diameter of the ring-shaped fixing structure ; Wherein, the fixing member is fixed to the end cover, and the fixing member abuts against an end surface of the ring-shaped abutting structure, and the fixing member and the ring-shaped abutting structure together form the Outer ring groove. The motor according to claim 2, wherein the fixing member includes a main body and an annular wall, and the annular wall of the fixing member is formed with the end face of the main body of the fixing member. One side of the engaging structure extends; the ring-shaped abutment structure abuts against the end surface of the body of the fixing member, and the ring-shaped wall and the ring-shaped abutment of the fixing member The structure and the annular fixing structure jointly form the outer annular groove. The motor according to claim 3, wherein the engagement structure is formed with an inner annular groove at a position adjacent to the body of the fixing member, and the end of the inner elastic sealing member extends inward to form an inner ring An annular convex portion, the inner annular convex portion surrounds the first central perforation, and the inner annular convex portion is connected to the inner The annular grooves are engaged with each other. The motor according to claim 1, wherein the protective assembly further includes a plurality of locking members, the end cover has a plurality of first locking holes, and the fixing member has a plurality of second locking holes and a plurality of auxiliary locks Hole; the fixing member is locked to the ring-shaped fixing structure through the mutual cooperation of a plurality of the locking members, a plurality of the first locking holes and a plurality of the second locking holes; wherein, the An elastic outer cover is sleeved on the annular fixing structure, and a plurality of the first locking holes, the second locking holes and a plurality of the locking members are covered by the elastic outer cover. The motor according to claim 5, wherein each of the second lock holes and each of the auxiliary lock holes have the same aperture, and a plurality of the locking members can be mutually locked with a plurality of the auxiliary lock holes. The motor according to claim 5, wherein the engaging structure has a plurality of first avoiding notches, the inner elastic seal has a plurality of second avoiding notches; and the plurality of first avoiding notches are adjacent to the plurality of first avoiding notches. The second lock hole is provided, and a part of the plurality of the plurality of lock members that is locked in the plurality of the second lock holes passes through the plurality of the first avoidance notches and the plurality of the second avoidance notches. The motor according to claim 1, wherein the fixing member has a body and an annular wall, the engaging structure forms an inner annular groove at a position adjacent to the body of the fixing member, and The annular wall of the fixing member is formed by extending one side of the body of the fixing member, the first central hole penetrates a body of the inner elastic sealing member, and the inner elastic sealing member The main body and the annular wall of the inner elastic seal jointly form an engaging groove, the engaging groove and the engaging structure are engaged with each other, and the annular wall of the inner elastic seal One end of the wall opposite to the body of the inner elastic sealing element extends inward to form an inner annular convex portion, and the inner annular convex portion and the inner annular groove are engaged with each other. The motor according to claim 1, wherein the inner elastic sealing member protrudes outwardly from the side opposite to the side where the fixing member is engaged with each other to form an inner ring-shaped sealing portion, and the inner ring-shaped sealing portion surrounds In the first center hole, the inner ring-shaped sealing portion is engaged with the first shaft hole, and the inner side of the inner ring-shaped sealing portion abuts against the outer side of the rotating shaft. The motor according to claim 1, wherein the elastic outer cover includes a body and an annular wall, and one side of the body of the elastic outer cover extends to form the annular wall of the elastic outer cover , The body of the elastic outer cover is adjacent to a side surface of the annular wall of the elastic outer cover protruding outward to form at least one auxiliary annular convex portion, and the auxiliary annular convex portion surrounds the The third center perforation is set. The motor according to claim 1, wherein the elastic outer cover is opposite to a side surface of the ring-shaped fixing structure and protrudes outward to form an annular wall, and the ring of the elastic outer cover The end of the shaped wall extends inward to form an outer ring-shaped sealing portion, and the outer ring-shaped sealing portion tightly abuts against the outside of the rotating shaft.

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