Stator assembly, motor and cleaning equipment

Abstract

The utility model provides a stator assembly, a motor and cleaning equipment, and relates to the technical field of motors. The stator assembly comprises a housing which is insulated; the first cover body is connected with the shell; the first bearing is arranged in the first cover body; the second cover body is connected with the shell, and the first cover body and the second cover body are arranged in a spaced mode; the second bearing is arranged in the second cover body; and the electric connection assembly is arranged on the shell, the first end of the electric connection assembly is connected with the first cover body, and the second end of the electric connection assembly is connected with the second cover body. A conductive path is formed among the first cover body, the first bearing, the second cover body and the second bearing through the electric connection assembly, so that the voltage of the inner and outer rings of the first bearing and the second bearing is reduced, and the electrocorrosion of the first bearing and the second bearing is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, specifically, relate to a kind of stator assembly, motor and cleaning equipment. BACKGROUND

[0002] BMC (Bulk Molding Compound, bulk molding compound) Material has excellent resistance to insulation, higher structural strength and low cost advantage, BMC plastic package structure also has the advantages of inhibiting motor vibration noise, accelerating enameled wire heat dissipation, so more and more household motors use BMC plastic package motor structure.

[0003] In the related art, BMC plastic package motor has the problem of bearing corrosion. UTILITY MODEL CONTENT

[0004] The utility model aims at at least solving the technical problem of BMC bearing corrosion in the prior art.

[0005] Therefore, the first aspect of the utility model provides a kind of stator assembly.

[0006] The second aspect of the utility model provides a kind of motor.

[0007] The third aspect of the utility model provides a kind of cleaning equipment.

[0008] Therefore, the first aspect of the utility model provides a kind of stator assembly, and the stator assembly comprises: a shell, the shell is insulated;First cover body, first cover body is connected with the shell;First bearing, first bearing is arranged in first cover body;Second cover body, second cover body is connected with the shell, and first cover body and second cover body are spaced apart;Second bearing, second bearing is arranged in second cover body;Electric connection assembly, electric connection assembly is arranged in the shell, and the first end of electric connection assembly is connected with first cover body, and the second end of electric connection assembly is connected with second cover body.

[0009] In the technical scheme, the stator assembly includes an insulated shell, and first and second covers are provided at both ends of the shell, the first bearing is arranged in the first cover, and the second bearing is arranged in the second cover, the first and second covers are both end covers of the stator assembly. The electric connection assembly is arranged on the insulated shell, and the two ends of the electric connection assembly are connected to the first and second covers respectively. The electric connection assembly is a conductive structure, thereby electrically connecting the first and second covers. The first cover, the second cover and the electric connection assembly form a conductive path.

[0010] Specifically, the first and second covers are spaced apart, i.e. the first and second covers are located at both ends of the shell, and the first and second covers are used to accommodate the first and second bearings respectively.

[0011] In the technical scheme, the first cover body and the second cover body are conductive cover bodies, and since the first bearing and the second bearing are arranged in the first cover body and the second cover body respectively, the first bearing, the first cover body, the electric connection assembly, the second cover body and the second bearing form a conductive path, so that the first bearing and the second bearing are conductive, the capacitance distribution of the motor is changed, the voltage of the inner and outer rings of the bearings is reduced, and the electric corrosion of the first bearing and the second bearing is improved.

[0012] Specifically, the outer ring of the first bearing is connected with the first cover body, the outer ring of the second bearing is connected with the second cover body, and the first bearing and the second bearing are sleeved on the outer side wall of the rotating shaft, that is, the inner ring of the first bearing is connected with the rotating shaft, and the inner ring of the second bearing is also connected with the rotating shaft.

[0013] In the technical scheme, the shell of the stator assembly is selected as an insulating shell, so that the stator assembly has high insulation and structural strength and low production cost. The first cover body and the second cover body are arranged on the shell, the first bearing is arranged in the first cover body, the second bearing is arranged in the second cover body, and the electric connection assembly is arranged on the shell, so that a conductive path is formed between the first cover body, the first bearing, the second cover body and the second bearing through the electric connection assembly, thereby reducing the voltage of the inner and outer rings of the first bearing and the second bearing and improving the electric corrosion of the first bearing and the second bearing.

[0014] In addition, the stator assembly provided by the utility model also has the following additional technical features.

[0015] In some technical schemes, the electric connection assembly comprises: an electric connection component, the electric connection component being arranged on the shell; a first fixing component, the first fixing component connecting the electric connection component and the first cover body; and a second fixing component, the second fixing component connecting the electric connection component and the second cover body, the first fixing component and the second fixing component being used for fixing the electric connection component to the shell.

[0016] In the technical scheme, the first fixing component is used for fixedly connecting the first cover body and the electric connection component, the second fixing component is used for fixedly connecting the shell, the electric connection component and the second cover body, the first fixing component and the second fixing component are conductive structures, and the electric connection component is used for conducting electricity between the first fixing component and the second fixing component, so that the electric connection assembly formed by the first fixing component, the second fixing component and the electric connection component can conduct electricity between the first cover body and the second cover body.

[0017] It should be noted that the first cover is located on the first side of the shell, the second cover is located on the second side of the shell, and the electric connection component is located on the first side or the second side of the shell. Among them, the first cover is integrally formed with the shell, the first fixing component needs to be fixedly connected with the electric connection component, and the second fixing component is used for connecting the shell with the second cover, so the lengths of the first fixing component and the second fixing component are different, that is, the first fixing component needs to extend from the first side of the shell to the second side, or the second fixing component extends from the second side of the shell to the first side.

[0018] In the technical scheme of the present application, the electric connection assembly includes a first fixing component directly connected with the first cover and the electric connection component, and a second fixing component connected with the second cover, the shell and the electric connection component, and the electric connection component is connected with the first fixing component and the second fixing component, so that the first cover and the second cover are electrically connected, thereby reducing the voltage of the inner and outer rings of the first bearing and the second bearing, and improving the electric corrosion of the first bearing and the second bearing.

[0019] In some technical schemes, the electric connection component is in a sheet shape; the outer side of the shell includes a first mounting groove, and the electric connection component is at least partially arranged in the first mounting groove.

[0020] In the technical scheme, the electric connection component is used for connecting the first fixing component with the second fixing component, and the electric connection component is arranged on the outer side of the shell. The outer side of the shell is provided with a first mounting groove for accommodating at least part of the electric connection component, that is, at least part of the electric connection component is embedded in the outer side wall of the shell through the first mounting groove.

[0021] It should be noted that the shell is made of an insulating material, and the electric connection component for conducting electricity is embedded on the outer side wall of the shell through the first mounting groove. Among them, the thickness of at least part of the electric connection component is less than the depth of the first mounting groove, so that at least part of the electric connection component does not protrude from the outer side wall of the shell.

[0022] In the technical scheme of the present application, by arranging the first mounting groove on the outer side of the shell and arranging the electric connection component in a sheet shape in the first mounting groove, the electric connection component can be prevented from protruding from the outer side of the shell. While ensuring the electric conductivity between the first cover and the second cover, the installation stability of the electric connection component can be improved, and the stability of the electric connection component for conducting electricity between the first cover and the second cover can be improved.

[0023] In some technical schemes, the shell further includes a positioning rib located in the first mounting groove; the electric connection component includes a positioning hole, and the positioning rib is arranged in the positioning hole.

[0024] In the technical scheme, the positioning hole is arranged on the electric connecting component, and the positioning convex rib is arranged on the shell and arranged in the first mounting groove, and when the electric connecting component is mounted in the first mounting groove, the positioning convex rib is inserted into the positioning hole, thereby positioning the mounting of the electric connecting component.

[0025] It should be noted that the number of the positioning convex ribs can be at least two, and the number of the positioning convex ribs is the same as the number of the positioning holes. When the number of the positioning convex ribs is at least two, the sizes of the at least two positioning convex ribs are different, and the hole diameters of the corresponding at least two positioning holes are matched with the sizes of the at least two positioning convex ribs, thereby improving the operation convenience when the electric connecting component is mounted in the first mounting groove.

[0026] In the technical scheme, by arranging the positioning convex rib in the first mounting groove of the shell and arranging the corresponding positioning hole on the electric connecting component, the positioning hole and the positioning convex rib can assist in positioning when the electric connecting component is mounted, thereby improving the convenience of mounting the electric connecting component.

[0027] In some technical schemes, the electric connecting component further comprises a first mounting hole and a second mounting hole; the first fixing component is arranged through the first mounting hole, and the second fixing component is arranged through the second mounting hole.

[0028] In the technical scheme, the first mounting hole and the second mounting hole are further arranged on the electric connecting component, and the first mounting hole and the second mounting hole are arranged at intervals, wherein the first mounting hole cooperates with the first fixing component, and the second mounting hole cooperates with the second fixing component, thereby enabling the electric connecting component to conductively connect the first fixing component and the second fixing component, and conductively connect the first cover body and the second cover body.

[0029] Specifically, the electric connecting component is arranged on the side of the shell mounting the first cover body, and the first fixing component is also arranged on the side of the shell mounting the first cover body, and the first fixing component penetrates through the first mounting hole and the first cover body, thereby fixing the first cover body and the electric connecting component on the shell, and when the first fixing component penetrates through the first mounting hole, the outer side wall of the first fixing component is in contact with the inner side wall of the first mounting hole. The second fixing component is arranged on the side of the shell mounting the second cover body, and the second fixing component extends through the shell to the side of the shell mounting the first cover body, and the second fixing component penetrates through the second mounting hole, and when the second fixing component penetrates through the second mounting hole, the outer side wall of the second fixing component is in contact with the inner side wall of the second mounting hole, thereby enabling the second fixing component to conductively connect with the electric connecting component.

[0030] In the technical solution, the first mounting hole and the second mounting hole are arranged on the electric connection component, and the first fixing component and the second fixing component are respectively arranged in the first mounting hole and the second mounting hole, thereby improving the stability of the electric connection component in contact with the first fixing component and the second fixing component.

[0031] In some technical solutions, the electric connection component comprises: a first section arranged in the first mounting groove and connected with the first fixing component; a second section arranged outside the first mounting groove and connected with the second fixing component; and a bending section connecting the first section and the second section; wherein the first section, the second section and the bending section are an integral structure, and the first section and the second section are arranged in the axial direction of the stator assembly.

[0032] In the technical solution, the electric connection component comprises the first section, the second section and the bending section, the bending section is arranged between the first section and the second section, and when the electric connection component is connected with the first fixing component and the second fixing component, there is a height difference between the first section and the second section in the axial direction of the stator assembly, and the first section is arranged in the first mounting groove and the second section is arranged outside the first mounting groove, so that the first section can be hidden in the first mounting groove.

[0033] Specifically, the first mounting hole is arranged in the first section, and the second mounting hole is arranged in the second section. When the electric connection component is installed, the first section is installed in the first mounting groove, that is, the first mounting groove and the first section can preliminarily position the installation of the electric connection component, and then the first fixing component is arranged through the first mounting hole and connected with the shell. At this time, the second section is higher than the first section, and then the second fixing component is arranged through the second mounting hole on the second section and the shell in sequence, and the second fixing component and the second section and the shell are fastened by the nut. Since there is a certain height difference between the second section and the first section, when the nut fastens the second fixing component, the second section, the second fixing component and the shell can be tightly attached, thereby improving the stability of the second fixing component, the shell and the electric connection component.

[0034] In the technical solution, the first section and the second section arranged in the axial direction of the stator assembly are arranged in the electric connection component, which can improve the installation stability of the electric connection component, the first fixing component and the second fixing component, and the first section of the electric connection component can be hidden in the first mounting groove, thereby improving the integrity of the stator assembly.

[0035] In some embodiments, the electric connection assembly comprises a third fixing component, the third fixing component is arranged through the shell, one end of the third fixing component is connected with the first cover body, and the other end of the third fixing component is connected with the second cover body; and a locking member is arranged on the third fixing component, and the locking member and the third fixing component are used for fixing the first cover body and the second cover body to the shell.

[0036] In the technical scheme, the third fixing component is arranged in the electric connection assembly, the third fixing component is directly connected with the first cover body and the second cover body located on both sides of the shell, and the first cover body and the second cover body are fixed and installed on the shell through only one third fixing component, thereby improving the stability of the installation of the first cover body and the second cover body to the shell and realizing the electric connection of the first cover body and the second cover body. The locking member is arranged on the third fixing component, the third fixing component is fixed to the shell through the locking member, and the locking member also fixes and connects one end of the third fixing component with the first cover body and fixes and connects the other end of the third fixing component with the second cover body.

[0037] It should be noted that the third fixing component is a conductive structure.

[0038] In the technical scheme, when the sizes of the first cover body and the second cover body are the same, the first cover body and the second cover body can be synchronously and stably fixed to the shell through one third fixing component, and the first cover body and the second cover body are conductively connected through the third fixing component.

[0039] In some embodiments, the stator assembly further comprises a stator core arranged in the shell and a grounding assembly, one end of the grounding assembly is in contact with the stator core, and the other end of the grounding assembly is located outside the shell.

[0040] In the technical scheme, the stator assembly further comprises a stator core and a grounding assembly, the stator core is arranged inside the shell, the grounding assembly is arranged on the shell, one end of the grounding assembly is in contact with the stator core arranged inside the shell, and the other end of the grounding assembly is arranged outside the shell. The grounding assembly is grounded outside the shell, so that the stator core is grounded.

[0041] It should be noted that, since the shell is an insulating shell, that is, the shell is insulated inside and outside, therefore, the grounding assembly needs to be partially arranged inside the shell to be in contact with the stator core, and the other part is extended from the shell inside to the shell outside, so that the stator core is grounded through the part of the grounding assembly extended to the shell outside.

[0042] In the technical scheme, the grounding assembly is arranged in the stator assembly, and a part of the grounding assembly is located in the shell and contacts the stator core, and another part of the grounding assembly extends to outside the shell, so that the stator core in the insulated shell can be connected with the external grounding wire through the grounding assembly, and the external grounding wire does not need to be arranged in the shell, and the installation operation of the stator assembly is simplified.

[0043] In some technical schemes, optionally, the grounding assembly comprises: a grounding terminal arranged outside the shell; and a fourth fixing component penetrating through the grounding terminal and the shell, and used for fixing the grounding terminal to the shell and contacting the stator core.

[0044] In the technical scheme, a part of the fourth fixing component is located in the shell and contacts the stator core, and another part of the fourth fixing component extends to outside the shell, and the fourth fixing component can fix the grounding terminal to the outer side of the shell, that is, the grounding terminal does not need to extend into the shell, and the stator core can be electrically connected with the grounding terminal, so that the stator core in the insulated shell is grounded through the fourth fixing component and the grounding terminal.

[0045] It should be noted that the fourth fixing component and the grounding terminal are both conductive structures.

[0046] In some technical schemes, optionally, the outer side of the shell further comprises a second mounting groove, and a part of the grounding terminal is located in the second mounting groove, and another part of the grounding terminal is located outside the second mounting groove.

[0047] In the technical scheme, the outer side of the shell is further provided with the second mounting groove, the second mounting groove is used for accommodating part of the grounding terminal, and another part of the grounding terminal is located outside the second mounting groove, so that part of the grounding terminal can be hiddenly arranged in the second mounting groove, and the second mounting groove can play a role of installation positioning when the grounding terminal is installed, and the installation stability and convenience of the grounding terminal are further improved.

[0048] In some technical schemes, optionally, the stator core comprises an avoiding hole, and a part of the fourth fixing component is located in the avoiding hole and contacts a hole wall of the avoiding hole.

[0049] In the technical scheme, the avoiding hole is arranged on the stator core, and the part of the fourth fixing component located in the shell can extend into the avoiding hole, so that the fourth fixing component contacts the hole wall of the avoiding hole through the avoiding hole, and installation interference between the fourth fixing component and the surface of the stator core is avoided.

[0050] The second aspect of the utility model provides a kind of motor, comprising: the stator assembly in any of the above technical solutions;Rotor assembly, rotor assembly is set to the inside of stator assembly;Shaft, shaft is arranged in rotor assembly, first bearing and second bearing are sleeved on the shaft.

[0051] In the technical scheme of the application, the motor includes a stator assembly, a rotor assembly and a shaft, the shaft is connected with the first bearing and the second bearing in the stator assembly, and under the condition that the motor is powered on, the rotor assembly can drive the shaft to rotate under the magnetic field action of the stator assembly, wherein the stator assembly is the stator assembly in any of the above technical solutions, and thus has all the technical effects of the stator assembly in any of the above technical solutions, which will not be repeated here.

[0052] The third aspect of the utility model provides a kind of cleaning equipment, comprising: body;The motor in any of the above technical solutions, motor is located in the body. Motor is the motor in any of the above technical solutions, and thus has all the technical effects of the motor in any of the above technical solutions, which will not be repeated here.

[0053] The additional aspects and advantages of the utility model will become apparent from the following description part or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0054] The above and / or additional aspects and advantages of the utility model will become apparent and easily understood from the description of embodiments in conjunction with the following drawings, in which:

[0055] Figure 1 One of the structure schematic diagrams of the stator assembly provided in some embodiments of the application is shown;

[0056] Figure 2 The second structure schematic diagram of the stator assembly provided in some embodiments of the application is shown;

[0057] Figure 3 One of the structure schematic diagrams of the motor provided in some embodiments of the application is shown;

[0058] Figure 4 For Figure 3 The enlarged view of A in the middle;

[0059] Figure 5 The third structure schematic diagram of the stator assembly provided in some embodiments of the application is shown;

[0060] Figure 6 The structure schematic diagram of the electrical connection component provided in some embodiments of the application is shown;

[0061] Figure 7 The second structure schematic diagram of the motor provided in some embodiments of the application is shown;

[0062] Figure 8 Fig. 4 shows a structural schematic diagram of a stator assembly provided in some embodiments of the present application;

[0063] Figure 9 Fig. 5 shows a structural schematic diagram of a cleaning device provided in some embodiments of the present application.

[0064] wherein, Figures 1 to 9 The correspondence between the reference signs and the component names in the drawings is as follows:

[0065] 100 stator assembly, 110 housing, 111 first mounting groove, 112 positioning rib, 113 second mounting groove, 120 first cover body, 130 first bearing, 140 second cover body, 150 second bearing, 160 electrical connection assembly, 161 first fixing component, 162 second fixing component, 163 electrical connection component, 1631 positioning hole, 1632 first mounting hole, 1633 second mounting hole, 1634 first section, 1635 second section, 1636 bending section, 164 third fixing component, 165 locking piece, 170 stator core, 172 avoiding hole, 180 grounding assembly, 182 grounding terminal, 184 fourth fixing component, 200 motor, 201 rotor assembly, 202 rotating shaft, 300 cleaning device, 301 body. DETAILED DESCRIPTION

[0066] In order to more clearly understand the above objectives, features and advantages of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0067] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0068] The following description refers to the accompanying drawings that show embodiments of the present application. Figures 1 to 9 The stator assembly, the motor and the cleaning device according to some embodiments of the present application are described below.

[0069] Figure 1 Fig. 1 shows a structural schematic diagram of a stator assembly provided in some embodiments of the present application,

[0070] Figure 2 Fig. 2 shows a structural schematic diagram of a stator assembly provided in some embodiments of the present application, Figure 3 Fig. 5 shows a structural schematic diagram of a cleaning device provided in some embodiments of the present application. Figures 1 to 3As shown, one embodiment of the utility model discloses a stator assembly 100, and the stator assembly 100 includes: the casing 110, the casing insulation, the first cover 120, the first cover 120 is connected with the casing 110, the first bearing 130 is arranged in the first cover 120, the second cover 140, the second cover 140 is connected with the casing 110, and the first cover 120 and the second cover 140 are spaced apart, the second bearing 150 is arranged in the second cover 140, the electric connection assembly 160 is arranged in the casing 110, and the first end of electric connection assembly 160 is connected with the first cover 120, and the second end of electric connection assembly 160 is connected with the second cover 140.

[0071] In the embodiment, the stator assembly 100 includes the insulated casing 110, and the first cover 120 and the second cover 140 are further arranged at the two ends of the casing 110, the first bearing 130 is arranged in the first cover 120, the second bearing 150 is arranged in the second cover 140, and the first cover 120 and the second cover 140 are both end covers of the stator assembly 100. The electric connection assembly 160 is arranged on the insulated casing 110, and the two ends of the electric connection assembly 160 are connected with the first cover 120 and the second cover 140 respectively, the electric connection assembly 160 is a conductive structure, so that the first cover 120 and the second cover 140 are electrically connected, that is, the first cover 120, the second cover 140 and the electric connection assembly 160 form a conductive path.

[0072] Exemplarily, the first cover 120 and the second cover 140 are end covers of the motor 200, that is, BB (Ball Bearing, ball bearing) covers of the motor 200.

[0073] Specifically, the first cover 120 and the second cover 140 are spaced apart, that is, the first cover 120 and the second cover 140 are located at the two ends of the casing 110, and the first cover 120 and the second cover 140 are used for accommodating the first bearing 130 and the second bearing 150 respectively.

[0074] Exemplarily, the casing 110 can be made of BMC material, that is, the stator assembly 100 is a BMC plastic packaging structure, which has the advantages of inhibiting vibration noise of the motor 200, accelerating heat dissipation of the enameled wire and the like.

[0075] In the embodiment, the first cover 120 and the second cover 140 are conductive covers, and since the first bearing 130 and the second bearing 150 are arranged in the first cover 120 and the second cover 140 respectively, the first bearing 130, the first cover 120, the electric connection assembly 160, the second cover 140 and the second bearing 150 form a conductive path, so that the first bearing 130 and the second bearing 150 are conductive, the capacitance distribution of the motor 200 is changed, the voltage of the inner and outer rings of the bearings is reduced, and the electric corrosion of the first bearing 130 and the second bearing 150 is improved.

[0076] Exemplarily, the first cover 120 and the second cover 140 are metal covers, the first cover 120 is a front end cover, the bearing arranged in the first cover 120 is a front bearing, the second cover 140 is a rear end cover, and the bearing arranged in the second cover 140 is a rear bearing.

[0077] Specifically, the outer ring of the first bearing 130 is connected with the first cover 120, the outer ring of the second bearing 150 is connected with the second cover 140, and the first bearing 130 and the second bearing 150 are sleeved on the outer sidewall of the rotating shaft, that is, the inner ring of the first bearing 130 is connected with the rotating shaft, and the inner ring of the second bearing 150 is also connected with the rotating shaft.

[0078] In the embodiment, the shell 110 of the stator assembly 100 is selected as an insulating shell 110, so that the stator assembly 100 has high insulation and structural strength and low production cost. The first cover 120 and the second cover 140 are arranged on the shell 110, the first bearing 130 is arranged in the first cover 120, the second bearing 150 is arranged in the second cover 140, and the electric connection assembly 160 is arranged on the shell 110, so that a conductive path is formed between the first cover 120, the first bearing 130, the second cover 140 and the second bearing 150 through the electric connection assembly 160, thereby reducing the voltage of the inner and outer rings of the first bearing 130 and the second bearing 150, and improving the electric corrosion of the first bearing 130 and the second bearing 150.

[0079] Figure 4 For Figure 3 The enlarged view of A in FIG. 1 is shown in FIG. 2, and Figure 3 and Figure 4 In some embodiments, the electric connection assembly 160 optionally includes a first fixing component 161, a second fixing component 162 and an electric connection component 163.

[0080] The electric connection component 163 is arranged on the shell 110, the first fixing component 161 connects the electric connection component 163 and the first cover 120, the second fixing component 162 connects the electric connection component 163 and the second cover 140, and the first fixing component 161 and the second fixing component 162 are used to fix the electric connection component 163 to the shell 110.

[0081] In this embodiment, the first fixing component 161 is used to fixedly connect the first cover 120 and the electric connecting component 163, the second fixing component 162 is used to fixedly connect the shell 110, the electric connecting component 163 and the second cover 140, the first fixing component 161 and the second fixing component 162 are both conductive structures, the electric connecting component 163 is used to conduct electricity between the first fixing component 161 and the second fixing component 162, so that the electric connecting assembly 160 formed by the first fixing component 161, the second fixing component 162 and the electric connecting component 163 can conduct electricity between the first cover 120 and the second cover 140.

[0082] Exemplarily, the first fixing component 161 and the second fixing component 162 can both be selected as a fastening screw. Specifically, for example, the first fixing component 161 is selected as a self-tapping screw, and the first fixing component 161 is used to fix the electric connecting component 163 on the shell 110. The second fixing component 162 is selected as a long bolt, which extends to the side where the first cover 120 is located after penetrating the shell 110, and is locked by a nut.

[0083] It should be noted that the first cover 120 is located at the first side of the shell 110, the second cover 140 is located at the second side of the shell 110, and the electric connecting component 163 is located at the first side or the second side of the shell 110. Among them, the first cover 120 is integrally formed with the shell 110, the first fixing component 161 needs to fixedly connect the first cover 120 and the electric connecting component 163, and the second fixing component 162 is used to connect the shell 110 and the second cover 140, so the lengths of the first fixing component 161 and the second fixing component 162 are different, that is, the first fixing component 161 needs to extend from the first side of the shell 110 to the second side, or the second fixing component 162 extends from the second side of the shell 110 to the first side.

[0084] As shown in Figure 3 Exemplarily, when the electric connecting component 163 is located at the first side of the shell 110, the length of the first fixing component 161 is less than the length of the second fixing component 162, the first fixing component 161 fixes the electric connecting component 163 at the first side of the shell 110, the second fixing component 162 fixes the second cover 140 at the second side of the shell 110, and the second fixing component 162 extends to the first side of the shell 110 after penetrating the shell 110, and is locked by a nut, so that the electric connecting component 163 located at the first side of the shell 110 can connect the first fixing component 161 and the second fixing component 162.

[0085] Exemplarily, when the electric connecting component 163 is located at the second side of the housing 110, the length of the second fixing component 162 is less than the length of the first fixing component 161, the second fixing component 162 fixes the second cover 140 at the second side of the housing 110, the first fixing component 161 fixes the electric connecting component 163 at the first side of the housing 110, and the first fixing component 161 extends through the housing 110 to the second side of the housing 110, and the second fixing component 162 is locked by the nut, so that the electric connecting component 163 located at the second side of the housing 110 can connect the first fixing component 161 and the second fixing component 162.

[0086] In the embodiment, the electric connecting assembly 160 includes the first fixing component 161 directly connected with the first cover 120 and the electric connecting component 163, and the second fixing component 162 connected with the second cover 140, the housing 110 and the electric connecting component 163, and the electric connecting component 163 is connected with the first fixing component 161 and the second fixing component 162, so as to electrically connect the first cover 120 and the second cover 140, thereby reducing the voltage between the inner and outer rings of the first bearing 130 and the second bearing 150, and improving the electric corrosion of the first bearing 130 and the second bearing 150.

[0087] Figure 5 Fig. 3 shows a structural schematic diagram of a stator assembly provided in some embodiments of the present application, Figure 6 Fig. 4 shows a structural schematic diagram of an electric connecting component provided in some embodiments of the present application, and Figure 5 and Figure 6 As shown in Fig. 4, in some embodiments, the electric connecting component 163 is in a sheet shape, and the outer side of the housing 110 includes a first mounting groove 111, and the electric connecting component 163 is at least partially arranged in the first mounting groove 111.

[0088] In the embodiment, the electric connecting component 163 is used to connect the first fixing component 161 and the second fixing component 162, and the electric connecting component 163 is arranged on the outer side of the housing 110. The outer side of the housing 110 is provided with the first mounting groove 111, and the first mounting groove 111 is used to accommodate at least part of the electric connecting component, that is, at least part of the electric connecting component 163 is embedded in the outer side wall of the housing 110 through the first mounting groove 111.

[0089] Exemplarily, the electric connecting component 163 is a metal connecting piece, for example, the electric connecting component 163 is a sheet metal stamping piece.

[0090] It should be noted that the housing 110 is made of insulating material. The electrical connection component 163 for conducting electricity is embedded in the outer wall of the housing 110 through the first mounting groove 111. At least part of the thickness of the electrical connection component 163 is less than the depth of the first mounting groove 111, so that at least part of the electrical connection component 163 does not protrude from the outer wall of the housing 110.

[0091] In this embodiment, by providing a first mounting groove 111 on the outside of the housing 110 and placing a sheet-shaped electrical connection component 163 inside the first mounting groove 111, the electrical connection component 163 can be prevented from protruding from the outside of the housing 110. While ensuring the conductivity of the electrical connection component 163 between the first cover 120 and the second cover 140, the installation stability of the electrical connection component 163 and the stability of the electrical connection component 163 in conducting electricity between the first cover 120 and the second cover 140 can be improved.

[0092] like Figure 5 and Figure 6 As shown, in some embodiments, optionally, the housing 110 further includes a positioning rib 112 located in the first mounting groove 111; the electrical connection component 163 includes a positioning hole 1631, and the positioning rib 112 passes through the positioning hole 1631.

[0093] In this embodiment, a positioning hole 1631 is provided on the electrical connection component 163, and a protruding positioning rib 112 is also provided on the housing 110. The positioning rib 112 is disposed in the first mounting groove 111. When the electrical connection component 163 is installed in the first mounting groove 111, the positioning rib 112 is inserted into the positioning hole 1631, thereby playing a positioning role in the installation of the electrical connection component 163.

[0094] For example, the positioning rib 112 is clearance-fitted or interference-fitted with the positioning hole 1631.

[0095] It should be noted that the number of positioning ribs 112 can be at least two, and the number of positioning ribs 112 is the same as the number of positioning holes 1631. When there are at least two positioning ribs 112, the dimensions of the at least two positioning ribs 112 are different, and the diameters of the corresponding at least two positioning holes 1631 match the dimensions of the at least two positioning ribs 112, which improves the ease of operation when installing the electrical connection component 163 in the first mounting groove 111.

[0096] In the embodiment, the positioning protrusion 112 is arranged in the first mounting groove 111 of the shell 110, and the positioning hole 1631 is arranged on the electric connecting component 163. The positioning hole 1631 and the positioning protrusion 112 can assist in positioning when the electric connecting component 163 is installed, thereby improving the convenience of installing the electric connecting component 163.

[0097] As shown in Figures 1 to 6 In some embodiments, the electric connecting component 163 further includes a first mounting hole 1632 and a second mounting hole 1633. The first fixing component 161 passes through the first mounting hole 1632, and the second fixing component 162 passes through the second mounting hole 1633.

[0098] In the embodiment, the electric connecting component 163 further includes a first mounting hole 1632 and a second mounting hole 1633. The first mounting hole 1632 and the second mounting hole 1633 are arranged at intervals. The first mounting hole 1632 cooperates with the first fixing component 161, and the second mounting hole 1633 cooperates with the second fixing component 162, so that the electric connecting component 163 can conductively connect the first fixing component 161 and the second fixing component 162, thereby conductively connecting the first cover 120 and the second cover 140.

[0099] Specifically, the electric connecting component 163 is arranged on the side of the shell 110 on which the first cover 120 is installed, and the first fixing component 161 is also arranged on the side of the shell 110 on which the first cover 120 is installed. The first fixing component 161 penetrates the first mounting hole 1632 and the first cover 120, thereby fixing the first cover 120 and the electric connecting component 163 on the shell 110. When the first fixing component 161 penetrates the first mounting hole 1632, the outer side wall of the first fixing component 161 is in contact with the inner side wall of the first mounting hole 1632. The second fixing component 162 is arranged on the side of the shell 110 on which the second cover 140 is installed, and extends through the shell 110 to the side of the shell 110 on which the first cover 120 is installed. The second fixing component 162 penetrates the second mounting hole 1633, and the outer side wall of the second fixing component 162 is in contact with the inner side wall of the second mounting hole 1633 when the second fixing component 162 penetrates the second mounting hole 1633, thereby conductively connecting the second fixing component 162 and the electric connecting component 163.

[0100] For example, the first fixing component 161 is a self-tapping screw, and the second fixing component 162 is fastened by a nut after penetrating the second mounting hole 1633.

[0101] In the embodiment, the first mounting hole 1632 and the second mounting hole 1633 are arranged on the electric connection component 163, and the first fixing component 161 and the second fixing component 162 are respectively arranged in the first mounting hole 1632 and the second mounting hole 1633, thereby improving the stability of the electric connection component 163 in contact with the first fixing component 161 and the second fixing component 162.

[0102] In some embodiments, the electric connection component 163 comprises: a first section 1634 located in the first mounting groove 111 and connected with the first fixing component 161; a second section 1635 located outside the first mounting groove 111 and connected with the second fixing component 162; and a bending section 1636 connecting the first section 1634 and the second section 1635; wherein the first section 1634, the second section 1635 and the bending section 1636 are in an integrated structure, and the first section 1634 and the second section 1635 are arranged in the axial direction of the stator assembly 100.

[0103] In the embodiment, the electric connection component 163 comprises the first section 1634, the second section 1635 and the bending section 1636, the bending section 1636 is located between the first section 1634 and the second section 1635, and when the electric connection component 163 is connected with the first fixing component 161 and the second fixing component 162, there is a height difference between the first section 1634 and the second section 1635 in the axial direction of the stator assembly 100, the first section 1634 is located in the first mounting groove 111, and the second section 1635 is located outside the first mounting groove 111, so that the first section 1634 can be sunken and hidden in the first mounting groove 111.

[0104] Exemplarily, the electric connection component 163 comprising the first section 1634, the second section 1635 and the bending section 1636 is formed by stamping process or bending process on a sheet metal piece.

[0105] Figure 6 The arrow B in FIG. 1 shows the axial direction of the stator assembly 100.

[0106] Specifically, the first mounting hole 1632 is located in the first section 1634, and the second mounting hole 1633 is located in the second section 1635. When the electrical connection component 163 is installed, the first section 1634 is installed in the first mounting groove 111, that is, the first mounting groove 111 and the first section 1634 can preliminarily position the installation of the electrical connection component 163, and then the first fixing component 161 is penetrated through the first mounting hole 1632 and connected with the shell 110. At this time, the second section 1635 is higher than the first section 1634, the second fixing component 162 is sequentially penetrated through the shell 110 and the second mounting hole 1633 on the second section 1635, and then the second fixing component 162 is fastened with the second section 1635 and the shell 110 through the nut. Since there is a certain height difference between the second section 1635 and the first section 1634, when the nut fastens the second fixing component 162, the second section 1635, the second fixing component 162 and the shell 110 can be tightly attached, thereby improving the stability of the second fixing component 162, the shell 110 and the electrical connection component 163.

[0107] In the embodiments of the present application, by arranging the first section 1634 and the second section 1635 spaced in the axial direction of the stator assembly 100 in the electrical connection component 163, the installation stability of the electrical connection component 163, the first fixing component 161 and the second fixing component 162 can be improved, and the first section 1634 in the electrical connection component 163 can be sunken and hidden in the first mounting groove 111, thereby improving the integrity of the stator assembly 100.

[0108] Figure 7 Fig. 2 shows a structural schematic diagram of an electric machine provided in some embodiments of the present application. Figure 7 As shown in Fig. 2, in some embodiments, the electrical connection assembly 160 can optionally include a third fixing component 164, the third fixing component 164 is arranged through the shell 110, one end of the third fixing component 164 is connected with the first cover 120, and the other end of the third fixing component 164 is connected with the second cover 140; and a locking member 165 is arranged on the third fixing component 164, and the locking member 165 and the third fixing component 164 are used to fixedly connect the first cover 120 and the second cover 140.

[0109] In this embodiment, by arranging the third fixing component 164 in the electrical connection assembly 160, the third fixing component 164 is directly connected with the first cover 120 and the second cover 140 located on both sides of the shell 110, and the first cover 120 and the second cover 140 are both fixedly installed on the shell 110 through only one third fixing component 164, which improves the stability of the installation of the first cover 120 and the second cover 140 on the shell 110, and also enables the electrical connection of the first cover 120 and the second cover 140. The third fixing component 164 is further provided with a locking piece 165, which can fix the third fixing component 164 on the shell 110, and the locking piece 165 can also fixedly connect the first cover 120 with one end of the third fixing component 164, and fixedly connect the second cover 140 with the other end of the third fixing component 164.

[0110] It should be noted that the third fixing component 164 is a conductive structure.

[0111] Exemplarily, the third fixing component 164 can be a bolt, and the locking piece 165 is a nut. The bolt is integrally formed with a limiting portion at one end. After the bolt penetrates the first cover 120, the shell 110 and the second cover 140 in sequence, the limiting portion of the bolt is attached to the first cover 120, and the first cover 120 and the shell 110 are locked by the limiting portion of the bolt. The other end of the bolt is screwed with the nut, and the second cover 140 and the shell 110 are locked by the nut.

[0112] In the embodiment of the present application, when the sizes of the first cover 120 and the second cover 140 are the same, the first cover 120 and the second cover 140 can be synchronously and stably fixed on the shell 110 through one third fixing component 164, and the first cover 120 and the second cover 140 are conductively connected through the third fixing component 164.

[0113] As shown in Figure 2 , Figure 3 and Figure 7 In some embodiments, the stator assembly 100 can further include: a stator core 170 arranged in the shell 110; and a grounding assembly 180, one end of the grounding assembly 180 being in contact with the stator core 170, and the other end of the grounding assembly 180 being located outside the shell 110.

[0114] In this embodiment, the stator assembly 100 further comprises a stator core 170 and a grounding assembly 180, the stator core 170 is arranged inside the shell 110, the grounding assembly 180 is arranged on the shell 110, one end of the grounding assembly 180 is arranged in contact with the stator core 170 inside the shell 110, and the other end of the grounding assembly 180 is arranged outside the shell 110, and the stator core 170 is grounded by grounding the grounding assembly 180 outside the shell 110.

[0115] It should be noted that since the shell 110 is an insulating shell 110, that is, the inside and outside of the shell 110 are insulated, the grounding assembly 180 needs to be partially arranged inside the shell 110 in contact with the stator core 170, and the other part is extended from inside the shell 110 to outside the shell 110, so that the stator core 170 is grounded by grounding the grounding assembly 180 extending outside the shell 110.

[0116] In the embodiment of the present application, by arranging the grounding assembly 180 in the stator assembly 100, and the grounding assembly 180 is partially arranged inside the shell 110 in contact with the stator core 170, and the other part of the grounding assembly 180 extends to outside the shell 110, the stator core 170 inside the insulating shell 110 can be connected to the external grounding wire through the grounding assembly 180, without arranging the external grounding wire inside the shell 110, thereby simplifying the installation operation of the stator assembly 100.

[0117] As shown in Figure 2 , Figure 3 and Figure 7 , in some embodiments, optionally, the grounding assembly 180 comprises: a grounding terminal 182, the grounding terminal 182 is arranged outside the shell 110; a fourth fixing member 184, the fourth fixing member 184 penetrates the grounding terminal 182 and the shell 110, and the fourth fixing member 184 is used for fixing the grounding terminal 182 to the shell 110, and the fourth fixing member 184 is in contact with the stator core 170.

[0118] In the embodiment of the present application, part of the fourth fixing member 184 is arranged inside the shell 110, and the part of the fourth fixing member 184 arranged inside the shell 110 is in contact with the stator core 170, and the other part of the fourth fixing member 184 extends to outside the shell 110, and the fourth fixing member 184 can fix the grounding terminal 182 to the outer side of the shell 110, that is, the grounding terminal 182 does not need to extend into the inside of the shell 110, and the stator core 170 can be conductively connected with the grounding terminal 182, so that the stator core 170 inside the insulating shell 110 is grounded through the fourth fixing member 184 and the grounding terminal 182.

[0119] It should be noted that the fourth fixing member 184 and the grounding terminal 182 are both conductive structures.

[0120] Exemplarily, the fourth fixing component 184 can be a screw, the grounding terminal 182 is a punched metal sheet, the shell 110 is provided with a threaded hole, and the screw is screwed with the threaded hole on the shell 110 after penetrating the mounting hole on the metal sheet, so as to fix the grounding terminal 182 on the shell 110, and the part of the screw extending into the shell 110 is in contact with the stator core 170, so as to conductively connect the stator core 170 and the grounding terminal 182.

[0121] Figure 8 Fig. 4 shows a structural schematic diagram of a stator assembly provided in some embodiments of the present application. Figure 2 Figure 3 Figure 7 Figure 8 As shown in Figs. 4, 5, 6 and 7, in some embodiments, optionally, the outer side of the shell 110 further comprises a second mounting groove 113, and a part of the grounding terminal 182 is located in the second mounting groove 113, and another part of the grounding terminal 182 is located outside the second mounting groove 113.

[0122] In the embodiments of the present application, the outer side of the shell 110 is further provided with the second mounting groove 113, the second mounting groove 113 is used for accommodating part of the grounding terminal 182, and another part of the grounding terminal 182 is located outside the second mounting groove 113, so that part of the grounding terminal 182 can be hiddenly arranged in the second mounting groove 113, and the second mounting groove 113 can play a role of installation positioning when the grounding terminal 182 is installed, further improving the installation stability and installation convenience of the grounding terminal 182.

[0123] As shown in Figs. 4, 5, 6 and 7, in some embodiments, optionally, the stator core 170 comprises a relief hole 172, and the fourth fixing component 184 is partially located in the relief hole 172, and the fourth fixing component 184 is in contact with the hole wall of the relief hole 172. Figure 3 Figure 7 In the embodiments of the present application, the stator core 170 is provided with the relief hole 172, and the part of the fourth fixing component 184 located in the shell 110 can extend into the relief hole 172, so that the fourth fixing component 184 is in contact with the hole wall of the relief hole 172 through the relief hole 172, and installation interference between the fourth fixing component 184 and the surface of the stator core 170 is avoided.

[0124] As shown in Figs. 4, 5, 6 and 7, in some embodiments, optionally, the stator core 170 comprises a relief hole 172, and the fourth fixing component 184 is partially located in the relief hole 172, and the fourth fixing component 184 is in contact with the hole wall of the relief hole 172.

[0125] As shown in Figs. 4, 5, 6 and 7, in some embodiments, optionally, the stator core 170 comprises a relief hole 172, and the fourth fixing component 184 is partially located in the relief hole 172, and the fourth fixing component 184 is in contact with the hole wall of the relief hole 172. Figure 3 Figure 7 As shown in Figs. 4, 5, 6 and 7, in some embodiments, optionally, the stator core 170 comprises a relief hole 172, and the fourth fixing component 184 is partially located in the relief hole 172, and the fourth fixing component 184 is in contact with the hole wall of the relief hole 172. ​​​​​

[0126] In the embodiments of the present application, the motor 200 comprises a stator assembly 100, a rotor assembly 201 and a rotating shaft 202, the rotating shaft 202 is connected with the first bearing 130 and the second bearing 150 in the stator assembly 100, under the condition that the motor 200 is powered, the rotor assembly 201 can drive the rotating shaft 202 to rotate under the magnetic field of the stator assembly 100, wherein the stator assembly 100 is the stator assembly 100 in any of the above embodiments, thus having all the technical effects of the stator assembly in any of the above embodiments, which will not be repeated here.

[0127] Exemplarily, the motor 200 is a BMC plastic encapsulation motor.

[0128] Figure 9 The structural schematic diagram of the cleaning device provided in some embodiments of the present application is shown as follows, Figure 9 As shown in the drawings, one embodiment of the present application provides a cleaning device 300, comprising: a body 301; the motor 200 in any of the above embodiments, the motor 200 is arranged in the body 301. The motor 200 is the motor 200 in any of the above embodiments, thus having all the technical effects of the motor in any of the above embodiments, which will not be repeated here.

[0129] Exemplarily, the cleaning device 300 is a drum washing machine or a pulsator washing machine.

[0130] It should be clear that in the claims, the specification and the drawings of the present application, the term "a plurality of" means two or more, unless there is an additional explicit limitation, the terms "upper", "lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and making the description process more simple, and is not intended to indicate or imply that the device or element must have the described specific orientation, be constructed and operated in a specific orientation, therefore these descriptions cannot be understood as a limitation on the present application; the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be a fixed connection between multiple objects, can also be a detachable connection between multiple objects, or an integral connection; can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances of the above data.

[0131] In the claims, the specification, and the drawings of the present application, terms such as "one embodiment", "an embodiment", "certain embodiments" and the like mean that the particular feature, structure, material, or characteristic being referred to is included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. Further, the description as used herein is intended to be illustrative of at least one embodiment of the present application and is not intended to be limiting. Still further, any one or more of the features, structures, materials, or characteristics could be combined in any suitable manner in one or more embodiments or examples.

[0132] The above only is the preferred embodiment of the present application, and is not used to limit the present application, for the person skilled in the art, the present application can have various changes and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stator assembly characterized by, Comprising: a housing, the housing being insulated; a first cover, the first cover being connected with the housing; a first bearing, the first bearing being provided in the first cover; a second cover, the second cover being connected with the housing, the first cover and the second cover being spaced apart; a second bearing, the second bearing being provided in the second cover; an electrical connection assembly, the electrical connection assembly being provided in the housing, a first end of the electrical connection assembly being connected with the first cover, a second end of the electrical connection assembly being connected with the second cover.

2. The stator assembly of claim 1, wherein, The electrical connection assembly comprises: an electrical connection component, the electrical connection component being provided in the housing; a first fixing component, the first fixing component connecting the electrical connection component and the first cover; a second fixing component, the second fixing component connecting the electrical connection component and the second cover, the first fixing component and the second fixing component being used for fixing the electrical connection component to the housing.

3. The stator assembly of claim 2, wherein, The electrical connection component is in a sheet shape; an outer side of the housing comprises a first mounting groove, the electrical connection component being at least partially provided in the first mounting groove.

4. The stator assembly according to claim 3, wherein the housing further comprises a positioning protrusion, the positioning protrusion being located in the first mounting groove; the electrical connection component comprises a positioning hole, the positioning protrusion being provided in the positioning hole.

5. The stator assembly according to claim 3, wherein the electrical connection component further comprises a first mounting hole and a second mounting hole; the first fixing component is provided in the first mounting hole, the second fixing component is provided in the second mounting hole.

6. The stator assembly of claim 3, wherein, The electrical connection component comprises: a first section, the first section being located in the first mounting groove, the first section being connected with the first fixing component; a second section, the second section being located outside the first mounting groove, the second section being connected with the second fixing component; a bending section, the bending section connecting the first section and the second section; wherein the first section, the second section and the bending section are in an integrated structure, the first section and the second section being spaced apart in an axial direction of the stator assembly.

7. The stator assembly of claim 1, wherein, The electrical connection assembly comprises: a third fixing component, the third fixing component penetrating through the housing, one end of the third fixing component being connected with the first cover, the other end of the third fixing component being connected with the second cover; a locking piece, the locking piece being provided in the third fixing component, the locking piece and the third fixing component being used for fixing the first cover and the second cover to the housing.

8. The stator assembly of any one of claims 1-7, wherein, Further comprising: a stator core, the stator core being provided in the housing; a grounding assembly, one end of the grounding assembly being in contact with the stator core, the other end of the grounding assembly being located outside the housing.

9. The stator assembly of claim 8, wherein, The grounding assembly comprises: a grounding terminal, the grounding terminal being provided outside the housing; a fourth fixing component, the fourth fixing component penetrating through the grounding terminal and the housing, the fourth fixing component being used for fixing the grounding terminal to the housing, and the fourth fixing component being in contact with the stator core.

10. The stator assembly of claim 9, wherein: the outer side of the housing further comprises a second mounting groove, and a portion of the grounding terminal is located in the second mounting groove and another portion of the grounding terminal is located outside the second mounting groove.

11. The stator assembly of claim 9, wherein: the stator core comprises an avoiding hole, and the fourth fixing member is partially located in the avoiding hole and contacts with a hole wall of the avoiding hole.

12. An electric machine characterized by including: the stator assembly of any one of claims 1 to 11; a rotor assembly, the rotor assembly is located inside the stator assembly; a rotating shaft, the rotating shaft is arranged in the rotor assembly, and the first bearing and the second bearing are sleeved on the rotating shaft.

13. A cleaning apparatus, characterized by including: a body; the motor of claim 12, the motor is arranged in the body.

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