Motor and cleaning equipment

Abstract

The utility model provides a motor and cleaning equipment. The motor comprises a stator bracket and an end cover, the circuit board has a positioning part; the fixing assembly has an unlocking state and a locking state; in the unlocking state, the first fixing piece is separated from the second fixing piece; in the locking state, the first fixing piece abuts against the second fixing piece in the first direction, the second fixing piece is used for limiting deformation of the first fixing piece in the second direction, and the first direction is opposite to the second direction. The first fixing piece deforms in the second direction and then penetrates through the positioning part, the first fixing piece and the circuit board are clamped in the third direction, the fixing assembly is switched from the unlocking state to the locking state, the first fixing piece keeps abutting against the positioning part, and the third direction is perpendicular to the first direction and the second direction. Through the arrangement, tedious assembling and disassembling steps are not needed, the structural stability of the motor can be improved, the assembling and disassembling processes are simplified, and the assembling and disassembling efficiency of the motor is improved.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a motor and a cleaning device. Background Art

[0002] In cleaning equipment, a motor is usually required to drive the roller brush to rotate, thereby achieving the cleaning action of the cleaning equipment. Among them, the motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy according to the law of electromagnetic induction. Its main function is to generate driving torque as a power source for electrical appliances or various machines.

[0003] In the related art, CN103401328A introduces a bracket for a motor stator, wherein the bracket includes a base, and a support column is provided on the base. The support column has an upper end surface capable of supporting a circuit board, and a positioning member capable of fixing the circuit board is fixedly connected to the upper end surface of at least one support column. A positioning hole is provided on the circuit board, and the positioning member is a snap boss. The end of the snap boss is forked, and the end of the snap boss shrinks and becomes smaller due to the extrusion force. After passing through the positioning hole, the forked part separates again, and after being stretched open, the boss at the end forms a barrier to the circuit board. In addition, in the related art, the motor also includes an end cover, which is located on the other side of the circuit board. The end cover is snapped with the bracket through the snap at the edge, and the end cover can protect the circuit board.

[0004] However, in the above-mentioned motor, the snap-on boss will be deformed again due to the extrusion force after being stretched open, and the snap-on boss is easy to separate from the circuit board, and the connection stability between the circuit board and the bracket is insufficient; secondly, during the assembly process of the above-mentioned motor, the end cover and the circuit board, and the bracket and the circuit board need to be positioned multiple times, resulting in poor assembly efficiency. Utility Model Content

[0005] In order to solve at least one of the problems mentioned in the background technology, the present application provides a motor and a cleaning device, aiming to solve the technical problems in the related technology that the snap boss will be deformed again due to the extrusion force after being expanded, the snap boss will be separated from the circuit board, and the supporting stability of the circuit board is insufficient; the end cover and the circuit board, and the bracket and the circuit board need to be positioned multiple times, resulting in poor assembly efficiency.

[0006] In order to achieve the above objectives, in a first aspect, the present application provides a motor, comprising:

[0007] A stator bracket and an end cover, wherein the stator bracket and the end cover are arranged at an interval;

[0008] A circuit board is located between the stator bracket and the end cover, and the circuit board has a positioning portion;

[0009] The fixing assembly comprises a first fixing member and a second fixing member, wherein:

[0010] The first fixing member is connected to the stator bracket and faces the end cover; the second fixing member is connected to the end cover and faces the stator bracket;

[0011] The fixing assembly includes an unlocked state and a locked state;

[0012] In the unlocked state, the first fixing member is separated from the second fixing member;

[0013] In the locked state, the first fixing member abuts against the second fixing member in a first direction, and the second fixing member is used to limit the deformation of the first fixing member in a second direction, wherein the first direction is opposite to the second direction;

[0014] The first fixing member is deformed along the second direction and then penetrates the positioning portion. The first fixing member is clamped with the circuit board in a third direction. The fixing assembly is switched from the unlocked state to the locked state. The first fixing member maintains contact with the positioning portion, wherein the third direction is perpendicular to both the first direction and the second direction.

[0015] The motor provided in the present application has a fixing assembly including an unlocked state and a locked state. In the unlocked state, the first fixing member is separated from the second fixing member. In the locked state, the second fixing member is located on the side where the first fixing member is deformed toward the second direction, and abuts against the first fixing member. The second fixing member is used to limit the deformation of the first fixing member toward the second direction.

[0016] Compared with the motor in the related art, the buckle boss will be deformed again under the extrusion force after being stretched, and the buckle boss is easy to be separated from the circuit board. This is equivalent to that after the first fixing member is connected with the circuit board, if the first fixing member is deformed along the second direction, the first fixing member is easy to move along the negative direction of the third direction, and then separate from the circuit board.

[0017] To this end, in the locked state, the second fixing member abuts against the first fixing member, the first fixing member is subjected to a force along the first direction, and the second fixing member effectively limits the deformation of the first fixing member toward the second direction, thereby preventing the first fixing member from moving in the negative direction of the third direction, so as to provide a limit for the circuit board in the positive direction of the third direction, thereby enhancing the connection stability between the circuit board and the stator bracket. After the first fixing member passes through the circuit board, and after the first fixing member is deformed and elastically engaged with the circuit board, the first fixing member provides positioning for the second fixing member, so that the second fixing member abuts against the first fixing member, and the first fixing member, the second fixing member and the circuit board are locked. In this process, the first fixing member corresponds to the positioning portion of the circuit board, and the second fixing member corresponds to the first fixing member, that is, the first fixing member and the second fixing member both correspond to the positioning portion, and the number of positioning times is small, so as to reduce the installation efficiency of the first fixing member and the second fixing member, and improve the installation accuracy of the first fixing member and the second fixing member.

[0018] In the above motor, optionally, the first fixing member has a first cavity, and the first fixing member is deformed along the second direction through the first cavity and then penetrates the positioning portion;

[0019] In the locked state, at least a portion of the second fixing member is located in the first cavity, and at least a portion of the second fixing member abuts against the first fixing member in the first direction.

[0020] Through the above-mentioned arrangement, by providing a first fixing member with a first cavity so that the second fixing member can be located inside the first fixing member, deformation of the first fixing member inward, i.e., in the second direction, can be avoided, thereby achieving fixation of the circuit board in the negative direction of the third direction, thereby ensuring the fixation and connection stability of the circuit board.

[0021] In the above-mentioned motor, optionally, the first fixing member includes an elastic portion and a fixed portion, the fixed portion is connected to the stator bracket, the elastic portion is connected to the fixed portion, the elastic portion faces the end cover, and the elastic portion and the fixed portion are jointly arranged to form the first cavity; the elastic portion drives the fixed portion to deform relative to the first cavity, and the fixing assembly switches between the unlocked state and the locked state. In the locked state, the elastic portion is elastically clamped with the circuit board in the third direction, and the fixed portion maintains abutment with the positioning portion.

[0022] Through the above arrangement, the first fixing member can adapt to a certain deformation, thereby providing a certain flexibility in the process of fixing the circuit board. In addition, the combined design of the elastic part and the fixing part can provide a certain elasticity while fixing the circuit board, which helps to reduce the stress concentration caused by external vibration or temperature change, and improve the stability and reliability of the fixing component. The fixing part is connected to the stator bracket, which can improve the stability and reliability of the overall structure. The fixing component switches between the unlocked state and the locked state to facilitate the loading and unloading operations between the stator bracket and the circuit board, thereby improving the maintenance and replacement efficiency of the motor.

[0023] In the above motor, optionally, the number of the elastic parts is at least two, the number of the fixed parts is the same as the number of the elastic parts, and the plurality of fixed parts are connected to the plurality of elastic parts in a one-to-one correspondence;

[0024] The plurality of fixing portions are arranged on the stator bracket at intervals in a ring shape, and the plurality of fixing portions and the plurality of elastic portions are jointly arranged to form the first cavity.

[0025] Through the above arrangement, a more uniform and more stable connection can be achieved. The fixing parts and elastic parts arranged at annular intervals are jointly arranged to form a structure of the first cavity, which can provide all-round support and elastic force to ensure the firmness of the connection. In addition, multiple elastic parts can increase the stability and reliability of the connection between the first fixing member and the second fixing member, ensuring the firmness of the connection. In addition, this method can effectively achieve a stable connection between the first fixing member and the circuit board, and ensure the reliability and stability of the connection, thereby ensuring the structural stability of the motor.

[0026] In the above motor, optionally, the second fixing member includes a first end and a second end that are arranged opposite to each other, the second end is connected to the end cover, and the first end faces the stator bracket;

[0027] The circuit board has a first surface and a second surface that are arranged opposite to each other, the first surface faces the stator bracket, and the second surface faces the end cover;

[0028] In the locked state, the first end is located in the first cavity.

[0029] Through the above arrangement, it can be ensured that the second fixing member is firmly connected to the stator bracket and the end cover, thereby enhancing the stability and reliability of the overall structure. In addition, it is conducive to the effective connection between the circuit board and the stator bracket and the end cover, and improves the overall performance and stability of the motor. In addition, it can ensure a firm connection between the second fixing member and the stator bracket, prevent accidental loosening or falling off, and improve the stability and safety of the motor.

[0030] In the above motor, optionally, the first end is in contact with at least the first fixing member located at the positioning portion;

[0031] or,

[0032] An end surface of the first end is at least flush with the first surface of the circuit board.

[0033] Through the above arrangement, a stable connection between the second fixing member and the circuit board can be ensured to avoid loosening or falling off during use, thereby improving the stability and reliability of the overall motor.

[0034] In the above-mentioned motor, optionally, along the third direction and along the direction of the stator bracket approaching the end cover, the cross-sectional area of ​​the first end gradually increases.

[0035] Through the above arrangement, the cross-sectional area of ​​the first end gradually increases, that is, the end surface area of ​​the first end is smaller, which facilitates the insertion of the second fixing member into the first cavity, can reduce the difficulty of loading and unloading the motor, and improve the loading and unloading efficiency and maintenance efficiency of the motor.

[0036] In the above-mentioned motor, optionally, the second fixing member includes a plug-in portion, and in the locked state, the plug-in portion is located in the first cavity.

[0037] Through the above arrangement, the plug-in portion can be located in the first cavity in the locked state, thereby increasing the connection area between the plug-in portion and the first fixing member to effectively maintain the stability and reliability of the connecting component.

[0038] In the above motor, optionally, the second fixing member further includes a clamping portion, the clamping portion is located outside the plug-in portion, and the plug-in portion and the clamping portion are spaced apart;

[0039] In the locked state, the engaging portion is engaged with the elastic portion.

[0040] Through the above arrangement, the second fixing member also includes a clamping portion, and ensures that the clamping portion is located outside the plug-in portion, so that the second fixing member and the first fixing member can be double fixed and supported, thereby improving the stability of the connection. In addition, the plug-in portion and the clamping portion are arranged at intervals, which can reduce friction and wear between components and extend the service life while ensuring a firm connection. Secondly, the clamping effect between the clamping portion and the elastic portion can increase the bearing capacity and seismic resistance of the fixing component, thereby improving the stability of the overall structure.

[0041] In the above motor, optionally, the clamping portion has a clamping groove on one side facing the plug-in portion, and the clamping groove corresponds to the elastic portion;

[0042] In the locked state, the end of the elastic portion is clamped on the groove wall of the clamping groove.

[0043] Through the above arrangement, by providing a snap-in groove on one side of the snap-in portion facing the plug-in portion, and ensuring that the snap-in groove corresponds to the elastic portion, the second fixing member and the first fixing member can be accurately snap-in and fixed, thereby improving the stability and reliability of the connection. Furthermore, in the locked state, the end of the elastic portion is snap-in to the groove wall of the snap-in groove, and the elastic action of the elastic portion can ensure a tight fit between the second fixing member and the first fixing member, thereby preventing the connection from loosening due to external force, effectively reducing friction and wear, and extending the service life, while improving the load-bearing capacity and shock resistance of the fixing assembly.

[0044] In the above motor, optionally, a first protrusion is provided on a side of the elastic portion close to the first cavity, and the first protrusion is used to abut against an outer wall surface of the second fixing member in the locked state;

[0045] Alternatively, a second protrusion is disposed on the outer side of the second fixing member, the second protrusion is close to the stator bracket, and the second protrusion is used to abut against the elastic part in the locked state.

[0046] Through the above arrangement, in the locked state, the first protrusion can effectively abut the outer wall surface of the second fixing member, and the second protrusion can effectively abut the elastic part, providing additional support and fixation, thereby increasing the stability of the connection. In addition, the first protrusion and the second protrusion can effectively prevent displacement or loosening between the second fixing member and the elastic part, thereby ensuring the reliability of the connection. Secondly, through the supporting effect of the first protrusion and the second protrusion, the friction and vibration between the elastic part and the second fixing member can be reduced, thereby extending the service life of the connection.

[0047] In the above motor, optionally, a first ratchet is provided on a side of the elastic portion close to the first cavity, and a second ratchet is provided on an outer side of the second fixing member;

[0048] In the locked state, the first ratchet is engaged with the second ratchet to limit the relative movement of the circuit board and the end cover along the third direction.

[0049] Through the above arrangement, the first ratchet is engaged with the second ratchet, which can effectively limit the relative movement of the circuit board and the end cover along the third direction Y, thereby ensuring the structural stability and reliability of the motor. In addition, this design can prevent the loosening or misalignment between the circuit board and the end cover due to vibration or external force during the operation of the motor, thereby ensuring the normal operation and safe use of the motor. Secondly, this design can improve the seismic resistance and load-bearing capacity of the motor, reduce the risk of damage to the motor in a complex working environment, and extend the service life of the motor. Finally, this design can also simplify the installation and maintenance process of the motor, improve production efficiency and reduce maintenance costs.

[0050] In the above motor, optionally, the outer side of the elastic part has a mounting groove;

[0051] In the locked state, the groove wall of the installation groove abuts against the positioning portion.

[0052] Through the above arrangement, reliable connection and fixation between the circuit board and the first fixing member can be achieved, and the stability and reliability of the motor structure can be improved. In the locked state, the abutment between the groove wall of the mounting groove and the positioning part can effectively prevent the movement or loosening of the circuit board, ensuring the normal operation and safety of the motor.

[0053] In the above motor, optionally, the positioning portion is located in the middle area of ​​the circuit board, and the positioning portion is a through hole;

[0054] The first fixing member is deformed along the second direction and then penetrates the through hole to form the locking state.

[0055] Through the above arrangement, the first fixing member is deformed and then penetrates the through hole to form a locked state, which can provide a stronger fixing effect and prevent the first fixing member from loosening or falling off.

[0056] In the above motor, optionally, the positioning portion is located at an edge area of ​​the circuit board, and the positioning portion is a card slot;

[0057] The first fixing member is locked in the locking slot along the second direction to form the locking state.

[0058] Through the above arrangement, the slot can effectively position and fix the first fixing member, ensuring its accurate and stable position. The first fixing member is clamped in the slot along the second direction to form a locked state, which can provide a stronger fixing effect and prevent the first fixing member from loosening or falling off.

[0059] In the above motor, optionally, in the unlocked state and the locked state, along the third direction, an outer diameter dimension of an orthographic projection of the elastic portion on the circuit board is larger than a radial dimension of the positioning portion.

[0060] Through the above arrangement, it can be ensured that the elastic part can be firmly fixed on the circuit board during installation, thereby improving the stability and reliability of the connection. This design can effectively prevent the elastic part from loosening or falling off due to force during use, thereby improving the performance and reliability of the motor.

[0061] In the above motor, optionally, the elastic portion has a third end and a fourth end that are arranged opposite to each other, the third end is close to the end cover, and the fourth end is close to the stator bracket;

[0062] The outer diameter of the third end is smaller than or equal to the radial dimension of the positioning portion; the outer diameter of the fixing portion is smaller than the radial dimension of the positioning portion;

[0063] In the unlocked state and the locked state, the outer diameter of the fourth end is larger than the radial dimension of the positioning portion.

[0064] By setting different outer diameters of the third end and the fourth end, the first fixing member can be passed through and clamped on the positioning portion, thereby fixing the position of the circuit board.

[0065] In the above-mentioned motor, optionally, a side of the elastic portion facing the end cover is a curved surface, and the curved surface protrudes toward the end cover.

[0066] Through the above arrangement, by designing the side of the elastic part facing the end cap to be a curved and convex structure, better guiding and alignment functions can be provided during connection or assembly, reducing friction and resistance during assembly, and improving assembly efficiency. In addition, the convex design of the curved surface can also provide a more uniform distribution when subjected to force, reduce local stress concentration, and improve the durability and stability of parts.

[0067] In the above-mentioned motor, optionally, the elastic part and the fixing part are an integral part.

[0068] Through the above arrangement, the elastic part and the fixing part are integrated, which can eliminate the problem of possible loose connection or falling off, and improve the stability of the connection; at the same time, the number of parts and assembly steps are reduced to simplify the manufacturing and assembly process and improve production efficiency. In addition, the one-piece molding method can reduce friction and looseness between parts, reduce the failure rate, and thus extend the service life of the motor, thereby improving the overall performance and reliability of the motor.

[0069] In the above-mentioned motor, optionally, both the first fixing member and the second fixing member are non-metallic members.

[0070] Through the above arrangement, the use of non-metallic parts as fixing parts can reduce the weight of the motor and improve the convenience of operation. In addition, the non-metallic parts have good insulation performance and can effectively prevent the influence of electromagnetic interference on the circuit board. The non-metallic parts have a lower cost, which can reduce the cost of motor manufacturing and improve production efficiency.

[0071] In the above motor, optionally, the number of the first fixing members is at least two, and the plurality of the first fixing members are arranged in an annular shape and at intervals on the stator bracket;

[0072] The number of the second fixing members is at least two, and the plurality of the second fixing members are arranged in an annular shape and at intervals on the end cover;

[0073] The plurality of first fixing members correspond one to one to the plurality of second fixing members.

[0074] Through the above arrangement, the annular arrangement and interval arrangement of the plurality of first fixing members and the second fixing members can make the connection force evenly distributed on the circuit board, which can improve the stability and reliability of the motor. The design of the plurality of through holes can simplify the assembly process of the motor to reduce the assembly time and improve the production efficiency. In addition, the annular arrangement and interval arrangement of the fixing components can facilitate maintenance and replacement by the staff to improve the maintainability of the motor.

[0075] In the above motor, optionally, the stator bracket is formed with a mounting cavity for accommodating the coil and a through hole for accommodating the rotating shaft, the through hole is communicated with the mounting cavity, and the coil is arranged in the mounting cavity;

[0076] The stator support also includes a terminal mounting seat, which is integrally formed with the stator support; the terminal mounting seat has a terminal, which is used to electrically connect the multiple coils, the terminal is electrically connected to the circuit board, and the fixing component is located on the terminal mounting seat.

[0077] Through the above settings, the installation cavity can effectively protect the coil, so that it can be safely installed in the motor, reducing the possibility of the coil being damaged by the external environment; one-piece molding can simplify the assembly process of the motor and improve production efficiency, while also reducing the possibility of loosening and failure between the terminal mounting seat and the stator bracket. The terminal mounting seat can achieve a stable electrical connection between the coil and the circuit board to ensure the normal operation of the motor. The terminal mounting seat can effectively fix the coil and the terminal to prevent loosening or falling off during operation, thereby improving the stability and reliability of the motor.

[0078] In a second aspect, the present application also provides a cleaning device, including a housing and the motor;

[0079] The motor is located in the housing.

[0080] The cleaning device provided by the present application is based on the above-mentioned motor, and the structural stability and loading and unloading efficiency of the motor are both high. Based on this, the use stability and safety of the cleaning device can be effectively improved, and it can also help to improve the loading and unloading efficiency of the cleaning device. The specific motor technical effects can be referred to above and will not be repeated here.

[0081] The structure of the present application and its other application objects and beneficial effects will be more clearly understood through the description of the preferred embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0083] Figure 1 A schematic diagram of a first three-dimensional structure of a motor provided in an embodiment of the present application;

[0084] Figure 2 A schematic diagram of a first exploded structure of a motor provided in an embodiment of the present application;

[0085] Figure 3 A schematic diagram of a first three-dimensional structure of a portion of a motor provided in an embodiment of the present application;

[0086] Figure 4 A side view of the overall structure of the motor provided in an embodiment of the present application;

[0087] Figure 5 A schematic diagram of a first top view structure of a portion of a motor provided in an embodiment of the present application;

[0088] Figure 6 A schematic diagram of a top view of the first fixing member of the motor provided in an embodiment of the present application;

[0089] Figure 7 A first side view structural schematic diagram of a portion of a motor provided in an embodiment of the present application;

[0090] Figure 8 A second side view structural schematic diagram of an unassembled motor provided in an embodiment of the present application;

[0091] Fig. 9 A second side view structural schematic diagram of an assembled motor provided in an embodiment of the present application;

[0092] Fig.10 A third side view structural schematic diagram of an unassembled motor provided in an embodiment of the present application;

[0093] Fig.11 A third side structural schematic diagram of an assembled motor provided in an embodiment of the present application;

[0094] Fig.12 A partial structural schematic diagram of a first fixing member and a second fixing member of an unassembled motor provided in an embodiment of the present application;

[0095] Fig.13 A schematic diagram of the partial structure of a first fixing member and a second fixing member of an assembled motor provided in an embodiment of the present application;

[0096] Fig.14 A first side view structural schematic diagram of a first fixing member and a second fixing member of a motor provided in an embodiment of the present application;

[0097] Fig.15 A second side view structural schematic diagram of the first fixing member and the second fixing member of the motor provided in an embodiment of the present application;

[0098] Fig.16 A third side structural schematic diagram of the first fixing member and the second fixing member of the motor provided in the embodiment of the present application;

[0099] Fig.17 A schematic diagram of the side view structure of the first fixing member and the circuit board of the assembled motor provided in an embodiment of the present application;

[0100] Fig.18 A schematic side view of the structure of a first fixing member and a circuit board of an unassembled motor provided in an embodiment of the present application;

[0101] Fig.19 A schematic diagram of a first top view structure of a first fixing member of an unfastened motor and a circuit board provided in an embodiment of the present application;

[0102] Fig. 20 A schematic diagram of a first top view structure of a first fixing member of an unfastened motor and a circuit board provided in an embodiment of the present application;

[0103] Fig.21 A schematic diagram of a first top view structure of a first fixing member of an unfastened motor and a circuit board provided in an embodiment of the present application.

[0104] Description of reference numerals:

[0105] 10-motor; -X-first direction; +X-second direction; Y-third direction;

[0106] 100-housing; 110-stator bracket; 111-installation cavity; 112-terminal mounting seat; 1121-terminal; 120-end cover;

[0107] 200-circuit board; 201-positioning portion; 202-first surface; 203-second surface;

[0108] 300-fixed components;

[0109] 310-first fixing member; 311-elastic part; 3111-first protrusion; 3112-first ratchet; 3113-third end; 3114-fourth end; 3115-installation groove; 312-fixing part; 313-first cavity;

[0110] 320-second fixing member; 321-first end; 3211-second protrusion; 3212-second ratchet; 322-second end; 323-insertion portion; 324-clamping portion. 3241-clamping groove;

[0111] 400-coil.

[0112] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0113] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar devices or devices with the same or similar functions. The described embodiments are embodiments of a part of the device of the present application, rather than embodiments of the entire device. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0114] In a first aspect, the present application provides a cleaning device.

[0115] It is understandable that the cleaning device is a device having a cleaning action. The cleaning action includes but is not limited to a suction action. Exemplarily, the cleaning device may be a sweeping robot, a vacuum cleaner, or a floor scrubber. The embodiments of the present application do not limit the specific type of the cleaning device, nor are they limited to the above examples.

[0116] The surface to be cleaned may be a floor or wall with different degrees of roughness, or a carpet or blanket with different lengths or types, or the surface of an object to be cleaned. The present application does not specifically limit the type of surface to be cleaned. The above cleaning action may be a vacuuming action, a mopping action, or a vacuuming and mopping action performed simultaneously to ensure the cleaning efficiency of the cleaning device.

[0117] It should be noted that the motor 10 provided by the utility model can not only be used in cleaning equipment, but in other embodiments, the motor 10 can also be applied to other types of devices and equipment, such as fans, air conditioners, fresh air blowers, etc. with air supply function, soymilk machines, blenders, dehumidifiers, etc. with stirring function, that is, all kinds of motor 10 driving equipment with high-speed rotation function are within the protection scope of the utility model.

[0118] In the embodiment of the present application, the cleaning device includes a housing for mounting the motor 10. The housing can protect the motor 10 to ensure the normal operation of the motor 10.

[0119] Reference Figure 1 , Figure 2 In a second aspect, the present application also provides a motor 10 , including a housing 100 , a circuit board 200 , and a fixing assembly 300 . The housing 100 includes a stator bracket 110 and an end cover 120 .

[0120] It should be noted that the specific structure of the motor 10 can be various. Exemplarily, the motor 10 includes an integrally formed housing, a bearing mounting portion, and a bracket. Another exemplary embodiment, the motor 10 may also include a rotating shaft, a bearing, an electronic stator, and / or a motor rotor, etc. The embodiments of the present application do not limit the specific structure of the motor 10, nor are they limited to the above examples.

[0121] In some embodiments, the motor 10 includes a housing 100 , which includes a cavity in which the periphery of components such as a motor stator, a motor rotor, and a wiring harness package are disposed for integrating the components and protecting the components inside the motor 10 .

[0122] Specifically, a rotating shaft is provided on the motor rotor, the rotating shaft extends in the axial direction, and rotates with the rotation of the motor rotor to play a driving role. The motor 10 has two ends arranged opposite to each other in the axial direction of the rotating shaft, one end of which is the driving end of the motor 10, and the rotating shaft extends from one end of the housing 100 as the driving shaft. The rotating shaft is sleeved on the bearing to support and lubricate the rotating shaft.

[0123] In the embodiment of the present application, the motor 10 includes a stator bracket 110 and an end cover 120. The stator bracket 110 is formed with a mounting cavity 111 for accommodating the coil and a through hole for accommodating the rotating shaft, and the through hole is connected to the mounting cavity 111. The coil 400 is arranged in the mounting cavity 111. In this way, the mounting cavity 111 can effectively protect the coil 400, so that it can be safely installed in the motor 10, and reduce the possibility of the coil 400 being damaged by the external environment.

[0124] refer to Figure 3The stator bracket 110 further includes a terminal mounting seat 112, and the terminal mounting seat 112 is integrally connected with the stator bracket 110. In this way, the assembly process of the motor 10 can be simplified, the production efficiency can be improved, and the possibility of looseness and failure between the terminal mounting seat 112 and the stator bracket 110 can also be reduced.

[0125] The terminal mounting seat 112 has a terminal 1121, which is used to electrically connect the plurality of coils 400. The terminal 1121 is electrically connected to the circuit board 200, which can achieve a stable electrical connection between the coil 400 and the circuit board 200, thereby ensuring the normal operation of the motor 10. The fixing assembly 300 is located on the terminal mounting seat 112, which can effectively fix the coil 400 and the terminal 1121, prevent them from loosening or falling off during operation, and improve the stability and reliability of the motor 10.

[0126] Reference Figure 4 It should be noted that, in order to better protect the circuit board 200 and the components located on the circuit board 200 , the stator bracket 110 is sleeved on the outside of the circuit board 200 and connected to the end cover 120 .

[0127] Reference Figure 8 In some embodiments, the stator bracket 110 and the end cover 120 are spaced apart. The circuit board 200 is located between the stator bracket 110 and the end cover 120 , and the circuit board 200 has a positioning portion 201 .

[0128] It should be noted that the type of the circuit board 200 can be any. For example, the circuit board 200 can use glass fiber reinforced epoxy resin (FR-4) as the substrate material, or can be an aluminum substrate (Aluminum PCB), a high-frequency circuit board (High-Frequency PCB), or can be one of a flexible circuit board (Flexible PCB), a metal substrate (Metal Core PCB), a high-density interconnect board (HDI PCB), a rigid-flexible circuit board (Rigid-Flex PCB) and a metallized ceramic substrate (MCPCB).

[0129] The fixing assembly 300 includes a first fixing member 310 and a second fixing member 320 , wherein the first fixing member 310 is connected to the stator bracket 110 and faces the end cover 120 ; the second fixing member 320 is connected to the end cover 120 and faces the stator bracket 110 .

[0130] The fixing assembly 300 includes an unlocked state and a locked state.

[0131] Reference Figure 8 In the unlocked state, the first fixing member 310 is separated from the second fixing member 320 , that is, the first fixing member 310 and the second fixing member 320 are spaced apart from each other.

[0132] Reference Fig. 9 In the locked state, the first fixing member 310 abuts against the second fixing member 320 in the first direction +X, and the second fixing member 320 is used to limit the deformation of the first fixing member 310 toward the second direction -X, wherein the first direction +X is opposite to the second direction -X.

[0133] Reference Figure 6 In the embodiment of the present application, the first direction +X and the second direction -X are two horizontal directions facing opposite directions.

[0134] It is understandable that the first fixing member 310 is elastic and can be deformed. In the locked state, the second fixing member 320 is located on the side of the first fixing member 310 that is deformed toward the second direction -X, and abuts against the first fixing member 310. In this way, the second fixing member 320 can prevent the first fixing member 310 from deforming toward the second direction -X.

[0135] The first fixing member 310 is deformed along the second direction -X and penetrates the positioning portion 201 . The first fixing member 310 is engaged with the circuit board 200 in the third direction Y. The fixing assembly 300 is switched from the unlocked state to the locked state. The first fixing member 310 maintains contact with the positioning portion 201 .

[0136] The third direction Y is perpendicular to both the first direction +X and the second direction -X. In the embodiment of the present application, the third direction Y is a vertical direction. It can be understood that the third direction Y includes a positive direction of the third direction Y and a negative direction of the third direction Y (refer to Figure 8 , in the third direction Y, the end cover 120 is located in the positive direction of the circuit board 200, and the stator bracket 110 is located in the negative direction of the circuit board 200).

[0137] Specifically, after the first fixing member 310 is deformed along the second square -X, it is inserted into the positioning portion 201 along the positive direction of the third direction Y; then, the first fixing member 310 is released from deformation along the second square -X, and the first fixing member 310 and the circuit board 200 are engaged in the negative direction of the third direction Y. In this way, the first fixing member 310 and the circuit board 200 are connected and fixed, and the first fixing member 310 and the circuit board 200 cannot move along the negative direction of the third direction Y, so that the circuit board 200 is fixed in the negative direction of the third direction Y.

[0138] It should be noted that the related technology CN103401328A discloses a bracket for a motor stator. The bracket includes a base, and a support column is provided on the base. The support column has an upper end surface capable of supporting a circuit board (equivalent to the circuit board 200), and a positioning member capable of fixing the circuit board is fixedly connected to the upper end surface of at least one support column. A positioning hole (equivalent to the positioning portion 201) is provided on the circuit board, and the positioning member is a snap-on boss (equivalent to the first fixing member 310). The end of the snap-on boss is forked, and the end of the snap-on boss shrinks and becomes smaller due to the extrusion force (i.e., deforms along the second direction -X). After passing through the positioning hole, the fork is separated again, and after being stretched open, the boss at the end forms a barrier to the circuit board.

[0139] However, in the above motor, the buckle boss will be deformed again due to the extrusion force after being stretched, and the buckle boss is easy to be separated from the circuit board. This is equivalent to that after the first fixing member 310 is clamped with the circuit board 200 in the third direction Y, if the first fixing member 310 is deformed along the second direction -X, the first fixing member 310 is easy to move along the negative direction of the third direction Y, and then separate from the circuit board 200.

[0140] To this end, in the locked state, the second fixing member 320 abuts against the first fixing member 310, and the first fixing member 310 is subjected to a force along the first direction +X. The second fixing member 320 effectively limits the first fixing member 310 from deforming toward the second direction -X, thereby preventing the first fixing member 310 from moving in the negative direction of the third direction Y, so as to provide a limit for the circuit board 200 in the positive direction of the third direction Y, thereby enhancing the connection stability between the circuit board 200 and the stator bracket 110.

[0141] It can be understood that after the first fixing member 310 passes through the circuit board 200, and after the first fixing member 310 is deformed toward the second direction -X and elastically engaged with the circuit board 200, the first fixing member 310 provides positioning for the second fixing member 320, so that the second fixing member 320 abuts against the first fixing member 310, and the first fixing member 310 and the second fixing member 320 are locked with the circuit board 200. In this process, the first fixing member 310 corresponds to the positioning portion 201 of the circuit board 200, and the second fixing member 320 corresponds to the first fixing member 310, that is, the first fixing member 310 and the second fixing member 320 both correspond to the positioning portion 201, and the number of positioning times is small, so as to reduce the installation efficiency of the first fixing member 310 and the second fixing member 320, and improve the installation accuracy of the first fixing member 310 and the second fixing member 320.

[0142] It should be noted that during the use of the fixing component 300, the first fixing member 310 is first clamped with the circuit board 200 in the third direction Y, and then the second fixing member 320 is abutted against the first fixing member 310. The second fixing member 320 effectively limits the deformation of the first fixing member 310 toward the second direction -X. The second fixing member 320 is positioned by the first fixing member 310 to facilitate installation by the staff.

[0143] It can be understood that, in the locked state, the stator bracket 110 is connected to the circuit board 200 via the first fixing member 310, and the end cover 120 is connected to the first fixing member 310 via the second fixing member 320. In this way, the fixing assembly 300 is used to connect the stator bracket 110, the end cover 120 and the circuit board 200 to enhance the structural strength of the motor 10, thereby enhancing the structural stability of the motor 10.

[0144] It is understandable that the first fixing member 310 is clamped in the third direction Y after being inserted into the circuit board 200. If the extension length of the first fixing member 310 is large, it can be adapted to a thicker circuit board 200. Therefore, during the use of the motor 10, if the circuit board 200 needs to be replaced, the first fixing member 310 provided in the embodiment of the present application can be inserted into circuit boards 200 of different thicknesses to enhance the versatility of the fixing assembly 300 and facilitate the use of the staff.

[0145] Reference Figure 5 As an optional implementation, the first fixing member 310 has a first cavity 313 .

[0146] It is understandable that the shape of the first cavity 313 can be arbitrary. For example, the shape of the first cavity 313 can be a square cavity, a circular cavity, or an irregular polygonal cavity.

[0147] It should be noted that the first cavity 313 is used to accommodate part of the second fixing member 320. Part of the second fixing member 320 is inserted into the first cavity 313, so that the second fixing member 320 can move or adjust its position inside the first fixing member 310.

[0148] The first fixing member 310 is deformed along the second direction -X through the first cavity 313 and then penetrates the positioning portion 201. That is, the first fixing member 310 has elasticity, so that the size and shape of the first cavity 313 can be changed. Figure 5 and Figure 6 , wherein the first direction +X is a direction from the first cavity 313 to the outside, and the second direction −X is a direction from the outside to the inside of the first cavity 313 .

[0149] Exemplarily, when the first cavity 313 is deformed along the second direction -X, the size of the first cavity 313 becomes smaller, so that the first fixing member 310 can penetrate the positioning portion 201. Another exemplary embodiment, after the first fixing member 310 penetrates the positioning portion 201, the first fixing member 310 restores its original shape. At this time, the size of the first cavity 313 becomes larger, so that the first fixing member 310 and the positioning portion 201 are clamped in the third direction Y.

[0150] In the locked state, at least a portion of the second fixing member 320 is located in the first cavity 313 , and at least a portion of the second fixing member 320 abuts against the first fixing member 310 in the first direction +X.

[0151] It is understandable that the second fixing member 320 may be only partially located in the first cavity 313, or may be completely located in the first cavity 313. At this time, the second fixing member 320 may prevent the first fixing member 310 from deforming toward the second direction -X, so that the first fixing member 310 and the circuit board 200 are fixed in position in the third direction Y, and the clamping state between the first fixing member 310 and the circuit board 200 is maintained.

[0152] Reference Figure 7 As an optional embodiment, the first fixing member 310 includes an elastic portion 311 and a fixing portion 312. It is understood that the elastic portion 311 is elastic, that is, the elastic portion 311 undergoes elastic deformation. It should be noted that the fixing portion 312 may be elastic or inelastic, which is not described in detail here.

[0153] It should be noted that the material of the elastic portion 311 can be various and can be any elastic material. Exemplarily, the elastic portion 311 can be an elastic plastic, such as polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), etc. Another exemplary embodiment, the elastic portion 311 can also be an elastic fiber (Elastic Fiber), such as spandex (Spandex), polyurethane fiber, etc., and can also be rubber. The embodiment of the present application does not limit the specific material of the elastic portion 311, nor is it limited to the above examples.

[0154] In this way, the first fixing member 310 can adapt to a certain deformation, thereby providing a certain flexibility in the process of fixing the circuit board 200. In addition, the combination design of the elastic part 311 and the fixing part 312 can provide a certain elasticity while fixing the circuit board 200, which helps to reduce stress concentration caused by external vibration or temperature change, and improve the stability and reliability of the fixing assembly 300.

[0155] Specifically, the fixing portion 312 is connected to the stator bracket 110, which can effectively fix the position of the first fixing member 310 in the motor 10, thereby improving the stability and reliability of the overall structure. The elastic portion 311 is connected to the fixing portion 312, so that the elastic portion 311 can exert its elastic characteristics when needed and provide a certain deformation ability. The elastic portion 311 faces the end cover 120, and the elastic portion 311 and the fixing portion 312 are jointly arranged to form a first cavity 313.

[0156] The elastic part 311 drives the fixing part 312 to deform relative to the first cavity 313, that is, the deformation of the elastic part 311 will cause the relative deformation of the fixing part 312, and the elastic part 311 can be deformed along the first direction +X, or along the second direction -X, so as to realize the elastic fixing function of the first fixing member 310. In this way, the first fixing member 310 can provide a certain elasticity while fixing the circuit board 200, which helps to reduce the influence of external shock or vibration on the fixing assembly 300 and increase the stability and reliability of the fixing assembly 300.

[0157] The fixing assembly 300 switches between an unlocked state and a locked state. In the locked state, the elastic portion 311 is elastically engaged with the circuit board 200 in the third direction Y, and the fixing portion 312 is in contact with the positioning portion 201, thereby maintaining the engaged state between the first fixing member 310 and the circuit board 200. The fixing assembly 300 switches between the unlocked state and the locked state, and the stator bracket 110 and the circuit board 200 are conveniently mounted and dismounted, thereby improving the maintenance and replacement efficiency of the motor 10.

[0158] Reference Figure 8 and Fig. 9 As an optional implementation, along the first direction +X, the outer diameter of the second fixing member 320 is equal to the inner diameter of the first cavity 313 .

[0159] It is understandable that the outer diameter of the second fixing member 320 refers to the outer diameter of the second fixing member 320, that is, the outer size of the second fixing member 320. The inner diameter of the first cavity 313 refers to the inner diameter of the first cavity 313, that is, the size of the inner space of the first fixing member 310.

[0160] It should be noted that the shape of the second fixing member 320 may be adapted to the shape of the first cavity 313 to increase the contact area between the second fixing member 320 and the first fixing member 310 .

[0161] By ensuring that the outer diameter of the second fixing member 320 is equal to the inner diameter of the first cavity 313, it can be ensured that there is no gap between the two that is too large or too small, thereby ensuring that the second fixing member 320 can be accurately inserted into the first cavity 313 and tightly combined with it. In this way, the connection stability and reliability between the second fixing member 320 and the first cavity 313 can be improved, and the problem of looseness or falling off caused by size mismatch can be avoided, thereby improving the overall performance and reliability of the motor 10.

[0162] As an optional implementation, along the first direction +X, the outer diameter of the second fixing member 320 is greater than the inner diameter of the first cavity 313 .

[0163] It is understandable that when the outer diameter of the second fixing member 320 is larger than the inner diameter of the first cavity 313, the elastic part 311 is elastic and can accommodate the insertion of the second fixing member 320 with a larger outer diameter. The second fixing member 320 can cause the elastic part 311 to elastically deform along the first direction +X, thereby enhancing the connection strength between the first fixing member 310 and the circuit board 200, so as to improve the stability and reliability of the connection and ensure that the connection of the motor 10 will not loosen or fall off during operation.

[0164] In addition, since the elastic portion 311 is elastic, the plugging process is more flexible and convenient, and can adapt to second fixing members 320 of different sizes and shapes, and can increase the contact area between the second fixing member 320 and the first fixing member 310 .

[0165] Through the above-mentioned arrangement, the elastic portion 311 undergoes elastic deformation to adapt to the insertion of the second fixing member 320 of a larger size, and increases the contact area between the second fixing member 320 and the first fixing member 310, thereby enhancing the connection strength between the first fixing member 310 and the circuit board 200, thereby ensuring the stability and reliability of the connection and the structural stability of the motor 10.

[0166] Reference Figure 5 As an optional implementation, the number of the fixing portions 312 is the same as the number of the elastic portions 311 .

[0167] It is understandable that the number of the elastic parts 311 can be arbitrary. For example, the number of the elastic parts 311 can be one, or the number of the elastic parts 311 can be at least two, such as two, three, four, five, six, etc. The embodiment of the present application does not limit the specific number of the elastic parts 311, nor is it limited to the above examples.

[0168] Reference Figure 5The following description will be made by taking the number of the elastic parts 311 as three as an example. At this time, the number of the fixing parts 312 is also three, and the three elastic parts 311 , the three fixing parts 312 and the stator bracket 110 together form the first cavity 313 .

[0169] The plurality of fixing portions 312 are connected to the plurality of elastic portions 311 in a one-to-one correspondence, that is, each elastic portion 311 corresponds to a fixing portion 312 , so as to ensure that each elastic portion 311 has a corresponding fixing support, thereby ensuring the firmness and stability of the connection.

[0170] The plurality of fixing parts 312 are arranged in annular intervals on the stator bracket 110, and the plurality of fixing parts 312 and the plurality of elastic parts 311 are jointly arranged to form a first cavity 313. In this way, the fixing assembly 300 provides uniform support and elastic force to ensure a stable connection between the first fixing member 310 and the circuit board 200.

[0171] The plurality of elastic parts 311 and the plurality of fixing parts 312 cooperate with each other to achieve a more uniform and more stable connection. The fixing parts 312 and the elastic parts 311 arranged in an annular manner together form a structure of the first cavity 313, which can provide all-round support and elastic force to ensure the firmness of the connection.

[0172] Through the above arrangement, the plurality of elastic parts 311 can increase the connection stability and reliability between the first fixing member 310 and the second fixing member 320, and ensure the firmness of the connection. In addition, this method can effectively achieve a firm connection between the first fixing member 310 and the circuit board 200, and ensure the reliability and stability of the connection, thereby ensuring the structural stability of the motor 10.

[0173] Reference Figure 8 As an optional embodiment, the second fixing member 320 includes a first end 321 and a second end 322 that are arranged opposite to each other, the second end 322 is connected to the end cover 120, and the first end 321 faces the stator bracket 110 to ensure that the second fixing member 320 is firmly connected to the stator bracket 110 and the end cover 120, thereby enhancing the stability and reliability of the overall structure.

[0174] The circuit board 200 has a first surface 202 and a second surface 203 that are arranged opposite to each other. The first surface 202 faces the stator bracket 110, and the second surface 203 faces the end cover 120, which is beneficial to the effective connection between the circuit board 200 and the stator bracket 110 and the end cover 120, thereby improving the overall performance and stability of the motor 10.

[0175] In the locked state, the first end 321 is located in the first cavity 313 to ensure a firm connection between the second fixing member 320 and the stator bracket 110 to prevent accidental loosening or falling off, thereby improving the stability and safety of the motor 10.

[0176] As an optional implementation, in the locked state, the first end 321 can be located at different positions in the first cavity 313 .

[0177] Reference Fig. 9 In some embodiments, the first end 321 at least abuts against the first fixing member 310 located at the positioning portion 201 , that is, the first end 321 at least corresponds to the first cavity 313 of the positioning portion 201 .

[0178] Through the above arrangement, a stable connection between the second fixing member 320 and the circuit board 200 is ensured to avoid loosening or falling off during use, thereby improving the stability and reliability of the entire motor 10.

[0179] In some other embodiments, in the locked state, the end surface of the first end 321 is at least flush with the first surface 202 of the circuit board 200 in the first cavity 313 , that is, the end surface of the first end 321 and the first surface 202 are on the same plane.

[0180] In some other embodiments, in the locked state, the end surface of the first end 321 is in the first cavity 313 and is located on the outside of the first surface 202 of the circuit board 200, that is, the end surface of the first end 321 corresponds to the fixing portion 312, that is, the first end 321 abuts against the fixing portion 312, and the fixing portion 312 remains in abutment with the positioning portion 201, thereby maintaining the clamping state between the first fixing member 310 and the circuit board 200.

[0181] Through the above arrangement, the connection between the second fixing member 320 and the circuit board 200 is ensured to be in a stable state and maintain a stable contact. In addition, gaps or unevenness at the connection can be effectively avoided, thereby improving the stability and reliability of the connection. In addition, the close contact between the second fixing member 320 and the circuit board 200 can be ensured, which helps to prevent loosening or falling off during use, and improves the performance and stability of the overall motor 10.

[0182] Reference Figure 8 and Fig. 9 As an optional implementation, along the third direction Y, and along the direction in which the stator bracket 110 approaches the end cover 120 , that is, along the direction in which the stator bracket 110 approaches the end cover 120 .

[0183] The cross-sectional area of ​​the first end 321 gradually increases, which means that the cross-sectional area of ​​the first end 321 on a plane perpendicular to the third direction Y gradually increases, that is, the cross-sectional area of ​​the first end 321 gradually expands in the direction along the stator support 110 close to the end cover 120.

[0184] Through the above arrangement, the cross-sectional area of ​​the first end 321 gradually increases, that is, the end surface area of ​​the first end 321 is relatively small, which facilitates the insertion of the second fixing member 320 into the first cavity 313, thereby reducing the difficulty of loading and unloading the motor 10 and improving the loading and unloading efficiency and maintenance efficiency of the motor 10.

[0185] Reference Fig.10 , Fig.11 , Fig.12 as well as Fig.13 As an optional implementation, the second fixing member 320 includes an inserting portion 323 .

[0186] In the locked state, the plug-in portion 323 is located in the first cavity 313 , that is, the plug-in portion 323 is located inside the first cavity 313 and is in contact with or close to the inner wall of the first cavity 313 .

[0187] Through the above arrangement, the plug-in portion 323 is located in the first cavity 313 in the locked state, which increases the connection area between the plug-in portion 323 and the first fixing member 310 to effectively maintain the stability and reliability of the connection component.

[0188] It can be understood that the plug-in portion 323 can be completely located within the first cavity 313 to ensure a tight fit between the first fixing member 310 and the second fixing member 320, to avoid connection failure due to improper or loose connection, to effectively prevent malfunction or damage caused by inaccurate positioning or falling off of the plug-in part during use, and to improve the durability and stability of the overall fixing assembly 300.

[0189] Reference Fig.10 , Figure 1 , Fig.12 and Fig.13 As an optional implementation, the second fixing member 320 further includes a clamping portion 324 , and the clamping portion 324 is located outside the plug-in portion 323 , that is, the clamping portion 324 is located outside the plug-in portion 323 .

[0190] The plug-in portion 323 and the clamping portion 324 are arranged at an interval, which means that there is a certain interval or gap between the plug-in portion 323 and the clamping portion 324, and the two are not directly connected or overlapped.

[0191] It is understandable that when both the plug-in portion 323 and the clamping portion 324 have a certain extension length, there are many possibilities for the plug-in portion 323 and the clamping portion 324 to be arranged at intervals.

[0192] In some embodiments, one end of the plug-in portion 323 is disposed close to one end of the clamping portion 324 , and the other end of the plug-in portion 323 is disposed at an interval from the other end of the clamping portion 324 .

[0193] In some embodiments, the entirety of the plug-in portion 323 and the entirety of the clamping portion 324 are spaced apart from each other.

[0194] In the locked state, the clamping portion 324 is clamped with the elastic portion 311 in the third direction Y. It is understandable that the clamping may be a rigid clamping or an elastic clamping. The embodiment of the present application does not limit the clamping method between the clamping portion 324 and the elastic portion 311, nor is it limited to the above example.

[0195] Through the above arrangement, the second fixing member 320 also includes a clamping portion 324, and ensures that the clamping portion 324 is located outside the plug-in portion 323, so as to achieve double fixation and support between the second fixing member 320 and the first fixing member 310, thereby improving the stability of the connection. In addition, the plug-in portion 323 and the clamping portion 324 are arranged at intervals, so as to reduce friction and wear between components and extend the service life while ensuring a firm connection. Secondly, through the clamping effect between the clamping portion 324 and the elastic portion 311, the bearing capacity and seismic resistance of the fixing component 300 are increased, and the stability of the overall structure is improved.

[0196] Reference Fig.12 and Fig.13 As an optional implementation, the clamping portion 324 has a clamping groove 3241 on the side facing the plug-in portion 323, which means that the clamping portion 324 has a clamping groove on the side facing the plug-in portion 323 for clamping or connecting with the circuit board 200.

[0197] The clamping groove 3241 corresponds to the elastic portion 311 , which means that there is a corresponding relationship between the clamping groove 3241 and the elastic portion 311 , and the two can cooperate or clamp with each other.

[0198] In the locked state, the end of the elastic part 311 is clamped to the groove wall of the clamping groove 3241 in the third direction Y, which means that when the fixing assembly 300 is in the locked state, the end of the elastic part 311 is clamped or connected to the groove wall of the clamping groove 3241.

[0199] It is understandable that the snap-in portion 324 has a snap-in groove 3241 on one side of the plug-in portion 323, and ensures that the snap-in groove corresponds to the elastic portion 311, so as to achieve precise snap-in and fixation of the second fixing member 320 and the first fixing member 310, thereby improving the stability and reliability of the connection.

[0200] Furthermore, in the locked state, the end of the elastic portion 311 is clamped to the groove wall of the clamping groove 3241 in the third direction Y, and the fixing portion 312 is kept in contact with the positioning portion 201, thereby maintaining the clamping state between the first fixing member 310 and the circuit board 200 in the third direction Y. Through the elastic effect of the elastic portion 311, the tight fit between the second fixing member 320 and the first fixing member 310 is ensured, and the loose connection caused by external force is prevented, which effectively reduces friction and wear, prolongs the service life, and improves the bearing capacity and shock resistance of the fixing assembly 300.

[0201] Reference Fig.14 As an optional embodiment, a first protrusion 3111 is provided on one side of the elastic portion 311 close to the first cavity 313, and the first protrusion 3111 is used to abut against the outer wall surface of the second fixing member 320 in the locked state. When the second fixing member 320 is located in the first cavity 313, the first protrusion 3111 contacts the outer wall surface of the second fixing member 320, providing additional support and stability to ensure the firmness of the connection.

[0202] It is understandable that the shape of the first protrusion 3111 can be arbitrary. For example, the first protrusion 3111 can be a square column, a cone, a cylinder, a sawtooth, etc.

[0203] Through the above arrangement, in the locked state, the first protrusion 3111 can effectively abut the outer wall surface of the second fixing member 320, provide additional support and fixation, and increase the stability of the connection. In addition, the first protrusion 3111 can effectively prevent the second fixing member 320 from shifting or loosening during use, ensuring the reliability of the connection. Secondly, through the supporting effect of the first protrusion 3111, the friction and vibration between the elastic part 311 and the second fixing member 320 can be reduced, extending the service life of the connection.

[0204] Reference Fig.15 As an optional implementation, a second protrusion 3211 is provided on the outer side of the second fixing member 320 , and the second protrusion 3211 is close to the stator bracket 110 , and the second protrusion 3211 is used to abut against the elastic portion 311 in the locked state.

[0205] It is understandable that the shape of the second protrusion 3211 can be arbitrary. For example, the second protrusion 3211 can be a square cylinder, a cone, a cylinder, a sawtooth, etc. The embodiment of the present application does not limit the specific shape of the second protrusion 3211, nor is it limited to the above examples.

[0206] Through the above arrangement, in the locked state, the second protrusion 3211 effectively abuts against the elastic part 311, providing additional support and fixation, thereby increasing the stability of the connection. In addition, the second protrusion 3211 effectively prevents the elastic part 311 from shifting or loosening during use, thereby ensuring the reliability of the connection. Secondly, through the supporting effect of the second protrusion 3211, the friction and vibration between the elastic part 311 and the second fixing member 320 are reduced, thereby extending the service life of the connection.

[0207] Reference Fig.16 As an optional embodiment, a first ratchet 3112 is provided on one side of the elastic portion 311 close to the first cavity 313, and a second ratchet 3212 is provided on the outer side of the second fixing member 320. In the locked state, the first ratchet 3112 and the second ratchet 3212 are engaged in the third direction Y to limit the relative movement of the circuit board 200 and the end cover 120 along the third direction Y.

[0208] It can be understood that the cross-sectional shape of the first ratchet tooth 3112 and the second ratchet tooth 3212 along the docking direction between the first fixing member 310 and the positioning portion 201 can be a right triangle. In this way, as the second fixing member 320 and the first fixing member 310 approach each other, the degree of engagement between the first ratchet tooth 3112 and the second ratchet tooth 3212 in the third direction Y gradually increases to enhance the connection strength between the second fixing member 320 and the first fixing member 310.

[0209] It should be noted that since the cross-sectional shape of the first ratchet tooth 3112 and the second ratchet tooth 3212 can be a right triangle, the clamping connection between the first fixing member 310 and the second fixing member 320 is a one-way clamping connection, that is, the first ratchet tooth 3112 and the second ratchet tooth 3212 only move toward each other along the third direction Y to achieve self-locking.

[0210] Through the above arrangement, the first ratchet 3112 is engaged with the second ratchet 3212, which can effectively limit the relative movement of the circuit board 200 and the end cover 120 along the third direction Y, thereby ensuring the structural stability and reliability of the motor 10. In addition, this design can prevent the loosening or misalignment between the circuit board 200 and the end cover 120 due to vibration or external force during the operation of the motor 10, thereby ensuring the normal operation and safe use of the motor 10. Secondly, this design can improve the seismic resistance and load-bearing capacity of the motor 10, reduce the risk of damage to the motor 10 in a complex working environment, and extend the service life of the motor 10. Finally, this design can also simplify the installation and maintenance process of the motor 10, improve production efficiency and reduce maintenance costs.

[0211] Reference Fig.17 and Fig.18As an optional embodiment, the outer side of the elastic portion 311 has a mounting groove 3115; in the locked state, the groove wall of the mounting groove 3115 abuts the positioning portion 201, and when in the locked state, the groove wall of the mounting groove 3115 contacts or abuts the positioning portion 201 to ensure that the position of the circuit board 200 is fixed and stable.

[0212] Through the above arrangement, the circuit board 200 and the first fixing member 310 can be reliably connected and fixed, thereby improving the stability and reliability of the structure of the motor 10. In the locked state, the contact between the groove wall of the mounting groove 3115 and the positioning portion 201 effectively prevents the circuit board 200 from moving or loosening, thereby ensuring the normal operation and safety of the motor 10.

[0213] As an optional embodiment, the positioning portion 201 is located in the middle area of ​​the circuit board 200, and the positioning portion 201 is a through hole; the first fixing member 310 is deformed along the second direction -X and then penetrates the through hole to form a locking state, that is, the first fixing member 310 is clamped at the through hole in the third direction Y.

[0214] Through the above arrangement, the first fixing member 310 is deformed along the second direction −X and then penetrates the through hole to form a locked state, thereby providing a stronger fixing effect and preventing the first fixing member 310 from loosening or falling off.

[0215] As an optional implementation, the positioning portion 201 is located at the edge area of ​​the circuit board 200, and the positioning portion 201 is a slot. The first fixing member 310 is locked in the slot along the second direction -X to form a locked state.

[0216] It is understandable that, due to the different sizes of the slot openings of the slots, the locking methods between the first fixing member 310 and the slots are different.

[0217] Reference Fig.19 In some embodiments, if the slot opening is smaller than the radial dimension of the first fixing member 310 , that is, L1 is smaller than L2 , the first fixing member 310 is provided with the slot along the third direction Y to lock the slot.

[0218] Reference Fig. 20 In some embodiments, if the slot opening is larger than the radial dimension of the first fixing member 310 , that is, L1 is larger than L2 , the first fixing member 310 enters the slot along the second direction −X through the slot opening.

[0219] It should be noted that, in order to ensure that the first fixing member 310 is engaged with the slot in the third direction Y, the elastic portion 311 of the first fixing member 310 may abut against the second surface 203 of the circuit board 200 .

[0220] Reference Fig.21In some embodiments, the first fixing member 310 includes an elastic portion 311 and a fixing portion 312, both of which are sleeves, and the central cavities of the elastic portion 311 and the fixing portion 312 together form a first cavity 313. At this time, the slot opening is smaller than the radial dimension of the first fixing member 310, that is, L1 is smaller than L2, and the first fixing member 310 is provided with the slot along the third direction Y to provide the slot.

[0221] Through the above arrangement, the slot effectively positions and fixes the first fixing member 310, ensuring its accurate and stable position. The first fixing member 310 is locked in the slot along the second direction -X to form a locked state to provide a stronger fixing effect and prevent the first fixing member 310 from loosening or falling off.

[0222] As an optional implementation, in the unlocked state and the locked state, along the third direction Y, the outer diameter of the orthographic projection of the elastic portion 311 on the circuit board 200 is greater than the radial dimension of the positioning portion 201 .

[0223] Through the above arrangement, in both the unlocked state and the locked state, the elastic part 311 can be firmly fixed on the circuit board 200 during installation, thereby improving the stability and reliability of the connection. This design effectively prevents the elastic part 311 from loosening or falling off due to force during use, thereby improving the performance and reliability of the motor 10.

[0224] As an optional embodiment, the elastic portion 311 has a third end 3113 and a fourth end 3114 that are arranged opposite to each other, the third end 3113 is close to the end cover 120, and the fourth end 3114 is close to the stator support 110. The outer diameter of the third end 3113 is less than or equal to the radial dimension of the positioning portion 201, and the outer diameter of the fixing portion 312 is less than the radial dimension of the positioning portion 201;

[0225] In the unlocked state and the locked state, the outer diameter of the fourth end 3114 is greater than the radial dimension of the positioning portion 201 , so that the elastic portion 311 is engaged with the circuit board 200 in the third direction Y.

[0226] It should be noted that, in order to ensure that the first fixing member 310 passes through the positioning portion 201, the outer diameter of the fourth end 3114 can be smaller than the radial dimension of the positioning portion 201. Of course, the outer diameter of the fourth end 3114 can also be equal to the radial dimension of the positioning portion 201, and the positioning portion 201 can be provided for the fourth end 3114 to pass through.

[0227] By setting different outer diameters of the third end 3113 and the fourth end 3114 , the first fixing member 310 can be passed through and snapped onto the positioning portion 201 in the third direction Y, thereby fixing the position of the circuit board 200 .

[0228] Reference Figure 3 As an optional implementation, the side of the elastic portion 311 facing the end cover 120 is an arc surface, and the arc surface protrudes toward the end cover 120 , that is, the arc surface part protrudes from the surface of the elastic portion 311 .

[0229] By designing the side of the elastic portion 311 facing the end cap 120 to be a curved and convex structure, better guidance and alignment functions are provided during connection or assembly, friction and resistance during assembly are reduced, and assembly efficiency is improved. In addition, the convex design of the curved surface provides a more uniform distribution when subjected to force, reduces local stress concentration, and improves the durability and stability of components.

[0230] Reference Figure 2 As an optional embodiment, the elastic portion 311 and the fixing portion 312 are integrated. That is, there is no separation between the elastic portion 311 and the fixing portion 312, so as to increase the stability and reliability of the motor 10.

[0231] It is understandable that the elastic portion 311 and the fixed portion 312 are an integral part, which means that the elastic portion 311 and the fixed portion 312 are integrally formed. Among them, integral forming includes but is not limited to injection molding, die casting molding, powder metallurgy molding, laser sintering molding or hot pressing molding. The embodiment of the present application does not limit the molding method between the elastic portion 311 and the fixed portion 312, nor is it limited to the above examples, and can be selected according to the material and needs.

[0232] Through the above arrangement, the elastic part 311 and the fixing part 312 are integrated to eliminate the problem of possible loose connection or falling off, and improve the stability of the connection; at the same time, the number of parts and assembly steps are reduced to simplify the manufacturing and assembly process and improve production efficiency. In addition, the integrated molding method can reduce friction and looseness between parts, reduce the failure rate, and thus extend the service life of the motor 10, thereby improving the overall performance and reliability of the motor 10.

[0233] As an optional implementation, the first fixing member 310 and the second fixing member 320 are both non-metallic members.

[0234] It is understandable that the first fixing member 310 and the second fixing member 320 may be plastic, ceramic, or glass, etc. The present embodiment of the application does not limit the specific material of the first fixing member 310 and the second fixing member 320, nor is it limited to the above examples.

[0235] It should be noted that the materials of the first fixing member 310 and the second fixing member 320 may be the same or different, and may be selected according to actual conditions.

[0236] Through the above arrangement, the use of non-metallic parts as fixing parts can reduce the weight of the motor 10 to improve the convenience of operation. In addition, the non-metallic parts have good insulation performance and effectively prevent the electromagnetic interference of metal parts on the circuit board 200. The non-metallic parts have a lower cost, so as to reduce the manufacturing cost of the motor 10 and improve production efficiency.

[0237] Reference Figure 3 As an optional embodiment, the number of first fixing members 310 is at least two, and the multiple first fixing members 310 are arranged in a ring shape and at intervals on the stator bracket 110; the number of second fixing members 320 is at least two, and the multiple second fixing members 320 are arranged in a ring shape and at intervals on the end cover 120; the multiple first fixing members 310 correspond to the multiple second fixing members 320 one by one.

[0238] Correspondingly, the number of the positioning portions 201 may also be at least two, and at most two positioning portions 201 correspond one-to-one to the plurality of first fixing members 310 , so that each first fixing member 310 is penetrated by a corresponding positioning portion 201 .

[0239] Through the above arrangement, the annular arrangement and the interval arrangement of the plurality of first fixing members 310 and the second fixing members 320 make the connection force evenly distributed on the circuit board 200, so as to improve the stability and reliability of the motor 10. The design of the plurality of positioning parts 201 can simplify the assembly process of the motor 10, so as to reduce the assembly time and improve the production efficiency. In addition, the annular arrangement and the interval arrangement of the fixing components 300 are convenient for the staff to maintain and replace, so as to improve the maintainability of the motor 10.

[0240] In the description of the embodiments of the present application, it should be understood that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the connection of devices in two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0241] The terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In the description of the present application, "plurality" means two or more, unless otherwise specified.

[0242] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0243] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for the technical features of the device or the entire device therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A motor, characterized in that: include: A stator support (110) and an end cover (120), wherein the stator support (110) and the end cover (120) are arranged at an interval; A circuit board (200) is located between the stator bracket (110) and the end cover (120), and the circuit board (200) has a positioning portion (201); The fixing assembly (300) comprises a first fixing member (310) and a second fixing member (320), wherein: The first fixing member (310) is connected to the stator bracket (110) and faces the end cover (120); the second fixing member (320) is connected to the end cover (120) and faces the stator bracket (110); The fixing assembly (300) comprises an unlocked state and a locked state; In the unlocked state, the first fixing member (310) is separated from the second fixing member (320); In the locked state, the first fixing member (310) and the second fixing member (320) abut against each other in a first direction (+X), and the second fixing member (320) is used to limit the deformation of the first fixing member (310) in a second direction (-X), wherein the first direction (+X) is opposite to the second direction (-X); The first fixing member (310) is deformed along the second direction (-X) and then penetrates the positioning portion (201). The first fixing member (310) is clamped with the circuit board (200) in a third direction (Y). The fixing assembly (300) is switched from the unlocked state to the locked state. The first fixing member (310) maintains contact with the positioning portion (201), wherein the third direction (Y) is perpendicular to both the first direction (+X) and the second direction (-X).

2. The motor according to claim 1, characterized in that The first fixing member (310) has a first cavity (313), and the first fixing member (310) is deformed along the second direction (-X) through the first cavity (313) and then penetrates the positioning portion (201); In the locked state, at least a portion of the second fixing member (320) is located in the first cavity (313), and at least a portion of the second fixing member (320) abuts against the first fixing member (310) in the first direction (+X).

3. The motor according to claim 2, characterized in that The first fixing member (310) comprises an elastic portion (311) and a fixing portion (312); the fixing portion (312) is connected to the stator bracket (110); the elastic portion (311) is connected to the fixing portion (312); the elastic portion (311) faces the end cover (120); the elastic portion (311) and the fixing portion (312) are jointly arranged to form the first cavity (313); the elastic portion (311) drives the fixing portion (312) to deform relative to the first cavity (313); the fixing assembly (300) switches between the unlocking state and the locking state; in the locking state, the elastic portion (311) is elastically clamped with the circuit board (200) in the third direction (Y), and the fixing portion (312) is kept in contact with the positioning portion (201).

4. The motor according to claim 3, characterized in that The number of the elastic parts (311) is at least two, the number of the fixing parts (312) is the same as the number of the elastic parts (311), and the plurality of fixing parts (312) are connected to the plurality of elastic parts (311) in a one-to-one correspondence; The plurality of fixing portions (312) are arranged on the stator support (110) at intervals in a ring shape, and the plurality of fixing portions (312) and the plurality of elastic portions (311) are jointly arranged to form the first cavity (313).

5. The motor according to claim 2, characterized in that: The second fixing member (320) comprises a first end (321) and a second end (322) which are arranged opposite to each other, the second end (322) is connected to the end cover (120), and the first end (321) faces the stator bracket (110); The circuit board (200) has a first surface (202) and a second surface (203) that are arranged opposite to each other, the first surface (202) faces the stator support (110), and the second surface (203) faces the end cover (120); In the locked state, the first end (321) is located in the first cavity (313).

6. The motor according to claim 5, characterized in that The first end (321) at least abuts against the first fixing member (310) located at the positioning portion (201); or, An end surface of the first end (321) is at least flush with the first surface (202) of the circuit board (200).

7. The motor according to claim 5, characterized in that Along the third direction (Y), and in a direction of the stator support (110) approaching the end cover (120), the cross-sectional area of ​​the first end (321) gradually increases.

8. The motor according to claim 3, characterized in that The second fixing member (320) comprises an inserting portion (323), and in the locked state, the inserting portion (323) is located in the first cavity (313).

9. The motor according to claim 8, characterized in that The second fixing member (320) further comprises a clamping portion (324), wherein the clamping portion (324) is located outside the plug-in portion (323), and the plug-in portion (323) and the clamping portion (324) are arranged at an interval; In the locked state, the engaging portion (324) is engaged with the elastic portion (311).

10. The motor according to claim 9, characterized in that The clamping portion (324) has a clamping groove (3241) on one side facing the plug-in portion (323), and the clamping groove (3241) corresponds to the elastic portion (311); In the locked state, the end of the elastic portion (311) is clamped on the groove wall of the clamping groove (3241).

11. The motor according to claim 3, characterized in that A first protrusion (3111) is provided on one side of the elastic portion (311) close to the first cavity (313), and the first protrusion (3111) is used to abut against the outer wall surface of the second fixing member (320) in the locked state; Alternatively, a second protrusion (3211) is provided on the outer side of the second fixing member (320), the second protrusion (3211) is close to the stator bracket (110), and the second protrusion (3211) is used to abut against the elastic portion (311) in the locked state.

12. The motor according to claim 3, characterized in that A first ratchet tooth (3112) is provided on a side of the elastic portion (311) close to the first cavity (313), and a second ratchet tooth (3212) is provided on an outer side of the second fixing member (320); In the locked state, the first ratchet (3112) is engaged with the second ratchet (3212) to limit the relative movement of the circuit board (200) and the end cover (120) along the third direction (Y).

13. The motor according to claim 3, characterized in that The outer side of the elastic part (311) is provided with a mounting groove (3115); In the locked state, the groove wall of the installation groove (3115) abuts against the positioning portion (201).

14. The motor according to any one of claims 1 to 13, characterized in that: The positioning portion (201) is located in the middle area of ​​the circuit board (200), and the positioning portion (201) is a through hole; The first fixing member (310) is deformed along the second direction (-X) and then penetrates the through hole to form the locking state.

15. The motor according to any one of claims 1 to 13, characterized in that The positioning portion (201) is located in an edge region of the circuit board (200), and the positioning portion (201) is a card slot; The first fixing member (310) is clamped in the clamping slot along the second direction (-X) to form the locking state.

16. The motor according to claim 3, characterized in that In the unlocked state and the locked state, along the third direction (Y), the outer diameter of the orthographic projection of the elastic portion (311) on the circuit board (200) is greater than the radial dimension of the positioning portion (201).

17. The electric machine according to claim 16, characterized in that The elastic portion (311) has a third end (3113) and a fourth end (3114) that are arranged opposite to each other, the third end (3113) is close to the end cover (120), and the fourth end (3114) is close to the stator support (110); The outer diameter of the third end (3113) is smaller than or equal to the radial dimension of the positioning portion (201); the outer diameter of the fixing portion (312) is smaller than the radial dimension of the positioning portion (201); In the unlocked state and the locked state, the outer diameter of the fourth end (3114) is greater than the radial dimension of the positioning portion (201).

18. The motor according to claim 3, characterized in that The side of the elastic portion (311) facing the end cover (120) is a curved surface, and the curved surface protrudes toward the end cover (120).

19. The motor according to claim 3, characterized in that The elastic portion (311) and the fixing portion (312) are an integral piece.

20. The electric machine according to any one of claims 1 to 13, characterized in that The first fixing member (310) and the second fixing member (320) are both non-metallic members.

21. The electric machine according to any one of claims 1 to 13, characterized in that: The number of the first fixing members (310) is at least two, and a plurality of the first fixing members (310) are arranged in an annular shape and at intervals on the stator support (110); The number of the second fixing members (320) is at least two, and a plurality of the second fixing members (320) are arranged in an annular shape and at intervals on the end cover (120); The plurality of first fixing members (310) correspond one to one to the plurality of second fixing members (320).

22. The electric machine according to any one of claims 1 to 13, characterized in that The stator support (110) is formed with a mounting cavity (111) for accommodating the coil (400) and a through hole for accommodating the rotating shaft, the through hole is in communication with the mounting cavity (111), and the coil (400) is arranged in the mounting cavity (111); The stator support (110) further comprises a terminal mounting seat (112), wherein the terminal mounting seat (112) is integrally formed and connected to the stator support (110); the terminal mounting seat (112) has a terminal (1121), wherein the terminal (1121) is used to electrically connect a plurality of the coils (400), the terminal (1121) is electrically connected to the circuit board (200), and the fixing assembly (300) is located on the terminal mounting seat (112).

23. A cleaning device, characterized in that: A motor comprising a housing and any one of claims 1 to 22; The motor is located in the housing.

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