Electric cleaning brush

Abstract

The application relates to an electric cleaning brush, comprising a shell and a motor. The shell is internally provided with a first positioning structure. The motor comprises an output shaft and a main body, and the output shaft is connected with the main body. The main body is arranged in the shell and is provided with a second positioning structure. The first positioning structure is configured to cooperate with the second positioning structure and limit the main body in the circumferential direction of the output shaft. The electric cleaning brush can position the motor relative to the shell by the cooperation of the first positioning structure and the second positioning structure, so as to prevent the motor from moving in the rotation direction of the output shaft. Compared with the interference fit mode, the positioning mode by the positioning structure can maintain effectiveness for a longer time, and is helpful to reduce the probability of the motor moving around the axial direction. In addition, the assembly difficulty of the positioning mode by the positioning structure is lower, and the positioning structure itself does not obviously negatively affect the heat dissipation of the motor.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and in particular to an electric cleaning brush. Background Technology

[0002] Electric cleaning brushes require a motor to drive the brush head and achieve cleaning. This significantly reduces the user's workload and improves cleaning results.

[0003] In related technologies, the motor of an electric cleaning brush is installed inside the housing and fixed only by an interference fit. This fixing method can only ensure a good fixation effect for the motor initially. After long-term use, the mutual compression between the housing and the motor may cause deformation of both the motor housing and the housing, leading to a certain degree of failure of the interference fit. The motor can then easily shift in the direction of rotation of its output shaft, resulting in fixation failure, loosening, and slippage, which in turn affects the smooth operation of the electric cleaning brush. Utility Model Content

[0004] Therefore, it is necessary to provide an electric cleaning brush that can reduce the probability of motor axial movement in response to the above problems.

[0005] An electric cleaning brush, the electric cleaning brush comprising:

[0006] The housing, which contains a first positioning structure; and

[0007] The motor includes an output shaft and a main body, the output shaft being connected to the main body; the main body is disposed within the housing and has a second positioning structure;

[0008] The first positioning structure is configured to cooperate with the second positioning structure and to limit the main body in the circumferential direction around the output shaft.

[0009] The aforementioned electric cleaning brush utilizes a first and second positioning structure that cooperates to position the motor relative to the housing, preventing the motor from shifting in the direction of rotation of its output shaft. Compared to an interference fit, this positioning method maintains effectiveness for a longer period, helping to reduce the probability of axial movement of the motor.

[0010] In one embodiment, the housing includes an outer shell and a mounting bracket, and the main body is connected to the outer shell via the mounting bracket.

[0011] In this way, the motor can be accurately positioned and connected to the mounting bracket on the outside of the housing before being installed and connected to the housing through the mounting bracket, which helps to reduce assembly difficulty and improve assembly accuracy.

[0012] In one embodiment, the mounting bracket includes a first bracket and a second bracket, the first bracket being connected to the second bracket, and the main body being disposed between the first bracket and the second bracket.

[0013] In this way, the motor can be first assembled between the first bracket and the second bracket, and fixed by the connection between the two. The three together form an assembly, which is then connected to the outer casing.

[0014] In one embodiment, the first bracket and the second bracket are connected along a first direction, and the first bracket and / or the second bracket have the first positioning structure;

[0015] One of the first positioning structure and the second positioning structure is a positioning protrusion protruding along the first direction, and the other is a positioning groove concave along the first direction.

[0016] Thus, before the first bracket and the second bracket are connected along the first direction, the first positioning structure and the second positioning structure can be aligned first, and the two can complete the positioning and cooperation during the connection of the first bracket and the second bracket.

[0017] In one embodiment, the first bracket has an inner bracket surface and an outer bracket surface disposed opposite to each other in the first direction, the outer bracket surface being formed as the outer surface of the housing; the inner bracket surface has the first positioning structure, and the end of the main body facing the inner bracket surface has the second positioning structure;

[0018] The first bracket has a shaft hole, through which the output shaft passes.

[0019] In this way, the main body of the motor can be positioned relative to the housing through its output end, and the positioning and cooperation position of the first positioning structure and the second positioning structure is closer to the output shaft.

[0020] In one embodiment, the first bracket has a first connecting post with a threaded connection hole, and the second bracket has a first through hole;

[0021] The mounting bracket further includes a first connector, which passes through the first through hole and is threadedly connected to the assembly threaded connection hole to connect the first bracket and the second bracket.

[0022] In this way, the second bracket can press down on the main body of the motor and connect with the first bracket through the first connector. This connection method is stable, reliable, and easy to assemble. In addition, the first connecting post can create a certain gap between the first bracket and the second bracket, which helps to improve the heat dissipation capacity of the mounting bracket.

[0023] In one embodiment, the housing has a mating connecting post, and the mating connecting post has a fixed threaded connecting hole; the first bracket has a second connecting post, and the second connecting post has a second through hole;

[0024] The mounting bracket further includes a second connector, which passes through the second through hole and is threadedly connected to the fixed threaded connection hole to connect the first bracket to the outer shell.

[0025] Thus, the connecting post can abut against the second connecting post to provide support for the mounting bracket. The first bracket and the outer casing are connected through the second through hole, the fixed threaded connection hole, and the second connector, and this connection method is simple and stable.

[0026] In one embodiment, the end of the second bracket away from the first bracket has a heat dissipation vent.

[0027] In this way, the second bracket can improve its own heat dissipation performance through the heat dissipation vent, reduce the operating temperature of the motor, enable it to work stably for a longer period of time, and also facilitate wiring of the terminal block through the heat dissipation vent.

[0028] In one embodiment, the housing has a mating connecting post, and the mounting bracket is connected through the mating connecting post;

[0029] The mounting bracket has a positioning notch, which is positioned and engaged with the peripheral side surface of the mating connecting column.

[0030] In this way, when installing and connecting the mounting bracket to the housing, the positioning can be accurately determined first by using the positioning notch and the mating connecting post, reducing the difficulty of subsequent connection. At the same time, the positioning between the positioning notch and the mating connecting post can also improve the stability of the mounting bracket connection to the housing.

[0031] In one embodiment, the housing has at least two first positioning structures, and the main body has at least two second positioning structures, wherein the first positioning structure and the second positioning structure correspond one-to-one;

[0032] All of the second positioning structures are arranged around the output shaft.

[0033] In this way, the housing and the main body are positioned by at least two first positioning structures and a second positioning structure, and the arrangement around the output shaft can better resist the vibration generated when the motor is running, thereby making it work more stably and reducing the possibility of its movement. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic cross-sectional view of an electric cleaning brush in one embodiment of this application.

[0036] Figure 2 for Figure 1 The diagram shows the structure of the motor in the electric cleaning brush.

[0037] Figure 3 for Figure 1 The diagram shows the structural composition of the assembly of the mounting bracket and motor in the electric cleaning brush.

[0038] Figure 4 for Figure 3 The diagram shows the exploded structure of the assembly components.

[0039] Figure 5 for Figure 3 The diagram shows the structure of the first bracket in the mounting bracket.

[0040] Figure 6 for Figure 5 The diagram shows the structure of the first support at another angle.

[0041] Figure 7 for Figure 3 The diagram shows the structure of the second bracket in the mounting bracket shown.

[0042] Figure 8 for Figure 7 The diagram shows the structure of the second support at another angle.

[0043] Figure 9 for Figure 1 The diagram shows an enlarged view of the electric cleaning brush at point A.

[0044] Figure 10 for Figure 1 The diagram shows the exploded structure of the electric cleaning brush.

[0045] Figure 11 for Figure 1 The diagram shows the structure of the outer casing of the electric cleaning brush.

[0046] Explanation of reference numerals in the attached drawings: 100, electric cleaning brush; 10, housing; 11, first positioning structure; 111, rib structure; 13, outer shell; 131, mating connecting post; 1311, fixing threaded connection hole; 133, head; 135, grip; 15, mounting bracket; 151, first bracket; 1511, first connecting post; 1512, assembly threaded connection hole; 1513, second connecting post; 1514, second through hole; 1 515. Inner surface of bracket; 1516. Outer surface of bracket; 1517. Shaft hole; 153. Second bracket; 1530. Positioning notch; 1531. First through hole; 155. First connector; 157. Second connector; 159. Heat dissipation vent; 17. Sealing plug; 30. Motor; 31. Output shaft; 33. Main body; 331. Second positioning structure; 333. Wiring terminal; 50. Brush head; 70. Main board; 90. Battery. Detailed Implementation

[0047] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0048] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0049] Furthermore, where the term "and / or" appears, it merely describes the relationship between related objects and indicates that three relationships can exist. For example, A and / or B can represent the relationship between A and B: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates an "or" relationship between the related objects before and after it. Where the terms "first" and "second" appear, these terms are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified with "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, four, five, etc., unless otherwise explicitly specified.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0053] In addition to the techniques described in the background section, relying solely on interference fit to fix the motor requires significant force to press the motor in during assembly, which is time-consuming and labor-intensive. Furthermore, the heat generated during motor operation is not easily dissipated.

[0054] Please see Figures 1 to 5 An embodiment of this application provides an electric cleaning brush 100, including a housing 10 and a motor 30. The housing 10 has a first positioning structure 11. The motor 30 includes an output shaft 31 and a main body 33, with the output shaft 31 connected to the main body 33. The main body 33 is disposed within the housing 10 and has a second positioning structure 331. The first positioning structure 11 is configured to cooperate with the second positioning structure 331 and to limit the movement of the main body 33 in the circumferential direction surrounding the output shaft 31.

[0055] Understandably, the electric cleaning brush 100 can be an item cleaning brush used for cleaning items, or it can be an electric toothbrush, water flosser, etc.

[0056] To achieve its normal function, the electric cleaning brush 100 also includes a brush head 50, etc. The main body 33 of the motor 30 may include a housing and a stator, rotor, etc., disposed within the housing. The output shaft 31 is connected to the rotor and extends outside the housing 10, and is drivenly connected to the brush head 50. When the motor 30 is powered on and started, it can output torque outward through the output shaft 31, thereby driving the brush head 50 to perform cleaning actions, which may be, but are not limited to, rotational or reciprocating movements.

[0057] The first positioning structure 11 inside the housing 10 can cooperate with the second positioning structure 331 to restrict the main body 33 from moving circumferentially around the output shaft 31. In other words, the first positioning structure 11 can position the main body 33 through the second positioning structure 331, preventing it from rotating in a direction parallel to the axis of the output shaft 31.

[0058] The first positioning structure 11 and the second positioning structure 331 can be, but are not limited to, mutually cooperating positioning protrusions and positioning grooves. Specifically, the positioning groove can be formed by the rib structure 111. In some other embodiments, the first positioning structure 11 and the second positioning structure 331 can also be mutually cooperating positioning teeth, buckles, etc., as long as they can limit the movement of the main body 33 in the circumferential direction around the output shaft 31. No specific limitation is made here.

[0059] The aforementioned electric cleaning brush 100 utilizes a first positioning structure 11 and a second positioning structure 331 to position the motor 30 relative to the housing 10, preventing the motor 30 from shifting in the direction of rotation of its output shaft 31. Compared to an interference fit, positioning using a positioning structure maintains effectiveness for a longer period, helping to reduce the probability of the motor 30 shifting axially. Furthermore, positioning using a positioning structure simplifies assembly and does not significantly negatively impact the heat dissipation of the motor 30.

[0060] Furthermore, the housing 10 has at least two first positioning structures 11, and the main body 33 has at least two second positioning structures 331, with each first positioning structure 11 corresponding to a second positioning structure 331. All the second positioning structures 331 are arranged around the output shaft 31.

[0061] Understandably, the number of the first positioning structure 11 is the same as that of the second positioning structure 331, and the two correspond one-to-one. The number can be, but is not limited to, 2, 3, 4, 5, etc., and no specific limitation is made here.

[0062] Thus, the housing 10 and the main body 33 are positioned by at least two first positioning structures 11 and second positioning structures 331, and the structure arranged around the output shaft 31 can better resist the vibration generated when the motor 30 is running, thereby making it work more stably and reducing the possibility of its movement.

[0063] Please refer to the following: Figures 6 to 11 In some embodiments, the housing 10 includes an outer shell 13 and a mounting bracket 15, and the main body 33 is connected to the outer shell 13 via the mounting bracket 15.

[0064] In this way, the motor 30 can first be accurately positioned and connected to the mounting bracket 15 on the outside of the housing 13, and then be installed and connected to the housing 13 through the mounting bracket 15, which helps to reduce the assembly difficulty and improve the assembly accuracy.

[0065] In some embodiments, the housing 13 has a mating connecting post 131, and the mounting bracket 15 is connected through the mating connecting post 131. The mounting bracket 15 has a positioning cutout 1530, which is positioned and engaged with the peripheral side surface of the mating connecting post 131.

[0066] Understandably, the shape of the positioning notch 1530 matches the shape of the mating connecting post 131, and the positioning notch 1530 can be engaged on the mating connecting post 131 and form a limit in the circumferential direction around the output shaft 31.

[0067] Thus, when the mounting bracket 15 is installed and connected to the housing 13, the positioning can be accurately determined by first using the positioning notch 1530 and the mating connecting post 131, reducing the difficulty of subsequent connection. At the same time, the positioning between the positioning notch 1530 and the mating connecting post 131 can also improve the stability of the connection between the mounting bracket 15 and the housing 13.

[0068] In some embodiments, the mounting bracket 15 includes a first bracket 151 and a second bracket 153, the first bracket 151 is connected to the second bracket 153, and the main body 33 is disposed between the first bracket 151 and the second bracket 153.

[0069] Thus, the motor 30 can be first assembled between the first bracket 151 and the second bracket 153 through its main body 33, and fixed by the connection between the two. The three together form an assembly, which is then connected to the outer casing 13.

[0070] Furthermore, the first support 151 and the second support 153 are along the first direction (e.g., Figure 1 (As shown in the X direction) connection, the first bracket 151 and / or the second bracket 153 have a first positioning structure 11. One of the first positioning structure 11 and the second positioning structure 331 is a positioning protrusion protruding along the first direction, and the other is a positioning groove recessed along the first direction.

[0071] Understandably, the first direction is parallel to the axial direction of the output shaft 31, the first bracket 151 and / or the second bracket 153 have a first positioning structure 11 on the side of the body 33 facing the first direction, and the body 33 has a second positioning mechanism at one end of the first direction.

[0072] Thus, before the first bracket 151 and the second bracket 153 are connected along the first direction, the first positioning structure 11 and the second positioning structure 331 can be aligned first, and the two can complete the positioning and cooperation during the connection of the first bracket 151 and the second bracket 153.

[0073] Specifically, the first positioning structure 11 is a positioning groove, and the second positioning structure 331 is a positioning protrusion. In this way, the impact on the main body 33 of the motor 30 is minimal.

[0074] In some embodiments, the first bracket 151 has a first connecting post 1511, the first connecting post 1511 having a threaded connection hole 1512, and the second bracket 153 has a first through hole 1531. The mounting bracket 15 further includes a first connector 155, the first connector 155 passing through the first through hole 1531 and threadedly connected to the threaded connection hole 1512 to connect the first bracket 151 and the second bracket 153.

[0075] Understandably, the first connector 155 can be, but is not limited to, a screw. The shank of the screw can pass through the first through hole 1531 and be threaded into the mounting threaded connection hole 1512. The head 133 of the screw is used to press the first bracket 151 against the second bracket 153. The first bracket 151 and the second bracket 153 can clamp and fix the body 33 of the motor 30 between them. After placing the body 33 of the motor 30 between the first bracket 151 and the second bracket 153, align the first through hole 1531 with the mounting threaded connection hole 1512, and gradually tighten the gap between the first bracket 151 and the second bracket 153 by tightening the first connector 155 until the motor 30 is clamped and fixed.

[0076] Thus, the second bracket 153 can press down on the main body 33 of the motor 30 and form a connection with the first bracket 151 through the first connector 155. This connection method is stable, reliable, and simple to assemble. In addition, the first connecting post 1511 can create a certain gap between the first bracket 151 and the second bracket 153, which helps to improve the heat dissipation capacity of the mounting bracket 15.

[0077] In some embodiments, the connecting post 131 has a fixed threaded connection hole 1311, and the first bracket 151 has a second connecting post 1513, which has a second through hole 1514. The mounting bracket 15 also includes a second connector 157, which passes through the second through hole 1514 and is threadedly connected to the fixed threaded connection hole 1311 to connect the first bracket 151 to the housing 13.

[0078] Specifically, the mating connecting post 131 abuts against the second connecting post 1513. The second connecting member 157 can be, but is not limited to, a screw. The shank of the screw is threadedly connected to the fixing threaded connection hole 1311 of the mating connecting post 131 through the second through hole 1514. The head 133 of the screw is used to press the first bracket 151 against the mating connecting post 131.

[0079] Thus, the connecting post 131 can abut against the second connecting post 1513 to support the mounting bracket 15. The first bracket 151 and the outer shell 13 are connected through the second through hole 1514, the fixed threaded connection hole 1311 and the second connector 157, and this connection method is simple and stable.

[0080] In some embodiments, the first bracket 151 has an inner bracket surface 1515 and an outer bracket surface 1516 disposed opposite to each other in a first direction, the outer bracket surface 1516 being formed as the outer surface of the housing 10. The inner bracket surface 1515 has a first positioning structure 11, and the end of the main body 33 facing the inner bracket surface 1515 has a second positioning structure 331. The first bracket 151 has a shaft hole 1517, through which the output shaft 31 passes.

[0081] Understandably, the end of the main body 33 facing the first bracket 151 is the output end, and the output shaft 31 extends from the output end through the shaft hole 1517 to the outside of the housing 10. The end of the main body 33 away from the first bracket 151 is the tail end, and the tail end may have terminals 333 for wiring, etc.

[0082] The outer casing 13 has a first receiving cavity and a first opening communicating with the first receiving cavity, the first opening being oriented along a first direction. A first bracket 151 is disposed at the first opening and seals the first opening. The main body 33 of the motor 30 and the second bracket 153 are disposed within the first receiving cavity. The output shaft 31 of the motor 30 can extend from the first receiving cavity through a shaft hole 1517 to the outside of the outer casing 13, so as to drive the brush head 50 located outside the main housing 10. A seal can be provided between the output shaft 31 and the first bracket 151 at the shaft hole 1517 to reduce the possibility of external liquids and dust entering the first receiving cavity through the shaft hole 1517.

[0083] Thus, the main body 33 of the motor 30 can be positioned relative to the housing 10 through its output end, and the positioning and cooperation position of the first positioning structure 11 and the second positioning structure 331 is closer to the output shaft 31.

[0084] In some embodiments, the mounting bracket 15 has a heat dissipation vent 159.

[0085] Understandably, the mounting bracket 15 has an assembly space for accommodating the main body 33. Specifically, the assembly space is defined by the first bracket 151 and the second bracket 153, forming between them. The heat dissipation vent 159 connects the inside and outside of the assembly space.

[0086] In this way, the heat dissipation vent 159 can improve the heat dissipation capacity of the mounting bracket 15, reduce the operating temperature of the motor 30, and enable it to work stably for a longer period of time.

[0087] Furthermore, the end of the second bracket 153 away from the first bracket 151 has a heat dissipation vent 159.

[0088] The second support 153 may be cup-shaped and shall be mounted on the main body 33 from the rear end of the main body 33. The second support 153 shall have a positioning cut 1530 and a first through hole 1531 formed on the outer edge of its cup mouth, and a heat dissipation vent 159 formed on its cup bottom. The heat dissipation vent 159 may be formed by the cut and may extend from the peripheral side to the opposite side and traverse the cup bottom, covering an area of ​​not less than 1 / 2 of the cup bottom.

[0089] In this way, the second bracket 153 can improve its heat dissipation performance through the heat dissipation port 159, and it is also convenient for the wiring terminal 333 to be wired through the heat dissipation port 159.

[0090] Specifically, the housing 10 also includes a sealing plug 17, and the second through hole 1514 is a countersunk hole. The sealing plug 17 is disposed within the second through hole 1514. The sealing plug 17 can be, but is not limited to, a soft rubber material, and its peripheral surface has annular protrusions.

[0091] In some embodiments, the housing 13 includes a head 133 and a grip 135, the main body 33 of the motor 30 is disposed inside the head 133, and the grip 135 is for the user to hold.

[0092] In some embodiments, the electric cleaning brush 100 also includes a main board 70, a battery 90, etc. The main board 70 and the battery 90 are both disposed inside the housing 13 and may be disposed on the grip portion 135. The main board 70 is used to control the operation of the motor 30, and the battery 90 supplies power to the main board 70 and the motor 30.

[0093] To facilitate understanding, the structure and installation method of the electric cleaning brush 100 are briefly explained below using a specific embodiment as an example:

[0094] 1. Align and mate the motor 30 with the first bracket 151. Based on the external structural features of the motor 30, its main body 33 has four identically shaped and sized positioning protrusions at its output end. One side of the inner surface 1515 of the first bracket 151 is designed with positioning grooves that mate with the four positioning protrusions. These positioning grooves are defined by an arc-shaped rib structure 111, forming four positioning grooves. The cross-sectional shape and depth of the positioning grooves are consistent with the cross-sectional shape and height of the positioning protrusions, ensuring a completely zero-gap assembly. Aligning and mate the motor 30 with the first bracket 151 means aligning and mateing the motor 30 with the first bracket 151 through the positioning protrusions and positioning grooves.

[0095] 2. Install the motor 30, the first bracket 151, and the second bracket 153. After completing step 1, the motor 30 and the first bracket 151 are assembled into a whole, and then assembled with the second bracket 153. First, the second bracket 153 is fitted onto the motor 30, aligning the three first through holes 1531 with the three threaded connection holes 1512 of the first bracket 151. Then, three screws are passed through the first through holes 1531 and the threaded connection holes 1512 to connect and fix the motor 30. In this way, the motor 30 is assembled and fixed through the first bracket 151 and the second bracket 153, forming an assembly.

[0096] 3. Install the assembly assembly to the housing 13. After completing step 2, the motor 30, the first bracket 151, and the second bracket 153 form the assembly assembly. The housing 13 has three mating connecting posts 131 of the same shape, size, and height inside. The first bracket 151 in the assembly assembly also has three second connecting posts 1513 for alignment and connection with the mating connecting posts 131. The assembly assembly is positioned through the three positioning notches 1530 of the second bracket 153, aligning the three mating connecting posts 131 and inserting them into the housing 13. Then, three screws are inserted into the second through holes 1514 within the second connecting posts 1513 and threaded onto the mating connecting posts 131. Thus, the assembly assembly and housing 13 are assembled and fixed.

[0097] The aforementioned electric cleaning brush 100's positioning structure and method for the motor 30 mainly include four positioning grooves on the first bracket 151 defined by the rib structure 111 and four positioning protrusions on the motor 30. These fit tightly together, are easy to install, and do not pose a risk of slippage or loosening after prolonged use. This ensures that the structure securing the motor 30 remains intact even under prolonged and heavy-duty use. Furthermore, the second bracket 153 is designed with a large cutout as a heat dissipation vent 159, facilitating heat dissipation from the motor 30.

[0098] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0099] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An electric cleaning brush, characterized in that, The electric cleaning brush includes: A housing (10) having a first positioning structure (11) therein; and The motor (30) includes an output shaft (31) and a main body (33), wherein the output shaft (31) is connected to the main body (33); the main body (33) is disposed inside the housing (10) and has a second positioning structure (331); The first positioning structure (11) is configured to cooperate with the second positioning structure (331) and limit the main body (33) in the circumferential direction around the output shaft (31).

2. The electric cleaning brush according to claim 1, characterized in that, The housing (10) includes an outer shell (13) and a mounting bracket (15), and the main body (33) is connected to the outer shell (13) through the mounting bracket (15).

3. The electric cleaning brush according to claim 2, characterized in that, The mounting bracket (15) includes a first bracket (151) and a second bracket (153), the first bracket (151) is connected to the second bracket (153), and the main body (33) is disposed between the first bracket (151) and the second bracket (153).

4. The electric cleaning brush according to claim 3, characterized in that, The first bracket (151) and the second bracket (153) are connected along a first direction, and the first bracket (151) and / or the second bracket (153) have the first positioning structure (11); One of the first positioning structure (11) and the second positioning structure (331) is a positioning protrusion protruding along the first direction, and the other is a positioning groove recessed along the first direction.

5. The electric cleaning brush according to claim 4, characterized in that, The first bracket (151) has an inner bracket surface (1515) and an outer bracket surface (1516) disposed opposite to each other in the first direction, the outer bracket surface (1516) being formed as the outer surface of the housing (10); the inner bracket surface (1515) has the first positioning structure (11), and the end of the main body (33) facing the inner bracket surface (1515) has the second positioning structure (331); The first bracket (151) has a shaft hole (1517), through which the output shaft (31) passes.

6. The electric cleaning brush according to claim 3, characterized in that, The first bracket (151) has a first connecting post (1511), and the first connecting post (1511) has an assembly threaded connection hole (1512). The second bracket (153) has a first through hole (1531). The mounting bracket (15) further includes a first connector (155), which passes through the first through hole (1531) and is threadedly connected to the assembly threaded connection hole (1512) to connect the first bracket (151) and the second bracket (153).

7. The electric cleaning brush according to claim 3, characterized in that, The outer casing (13) has a mating connecting post (131) inside, and the mating connecting post (131) has a fixed threaded connecting hole (1311); the first bracket (151) has a second connecting post (1513) inside, and the second connecting post (1513) has a second through hole (1514). The mounting bracket (15) further includes a second connector (157), which passes through the second through hole (1514) and is threadedly connected to the fixed threaded connection hole (1311) to connect the first bracket (151) to the outer shell (13).

8. The electric cleaning brush according to claim 3, characterized in that, The second bracket (153) has a heat dissipation vent (159) at the end away from the first bracket (151).

9. The electric cleaning brush according to any one of claims 2-8, characterized in that, The housing (13) has a mating connecting post (131) inside, and the mounting bracket (15) is connected through the mating connecting post (131); The mounting bracket (15) has a positioning notch (1530) that is positioned and engaged with the circumferential side of the mating connecting post (131).

10. The electric cleaning brush according to any one of claims 1-8, characterized in that, The housing (10) has at least two first positioning structures (11), and the main body (33) has at least two second positioning structures (331), with the first positioning structure (11) and the second positioning structure (331) corresponding one-to-one; All of the second positioning structures (331) are arranged around the output shaft (31).

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