Motor and water purifying device

Abstract

The embodiment of the application provides a motor and a water purifying device, and relates to the technical field of water purifiers. The motor comprises a shell and a stator assembly. The shell comprises a bearing part and a mounting part. The mounting part is arranged on the outer peripheral wall of the bearing part and is in an integrated molding structure with the bearing part. The bearing part has a receiving cavity extending along the axial direction of the bearing part. The stator assembly is annularly arranged in the receiving cavity and coaxially arranged with the bearing part. The preset size of the motor is W, W=(D1+H2) / (L1+H1), and the value range of W is 0.3-2.5. The water purifying device comprises a body and the aforementioned motor. The mounting part of the motor is connected to the body. Through the above arrangement, the volume of the motor can be reduced to adapt to the internal space of the water purifying device, the assembly process is simplified, and the risk of loosening caused by vibration is reduced.

Description

Technical Field

[0001] This application relates to the field of water purifier technology, and more particularly to an electric motor and a water purification device. Background Technology

[0002] In water purification equipment, the water pump motor is the core component that provides the power for water flow inside the water purification device.

[0003] Currently, water pump motors in water purification equipment are typically fixed to the motor housing using an independent mounting bracket to achieve assembly and support within the overall unit. Existing mounting brackets are mostly split structures, usually relying on screws and other fasteners for connection to the housing. This not only involves a complex assembly process and occupies a large space, affecting the motor's waterproof performance, but also allows motor vibrations to be directly transmitted to the housing. Over time, this can cause loosening at the connections, affecting connection stability and lifespan. Furthermore, conventional water pump motors are generally bulky, making them unsuitable for installation in the confined spaces of water purification devices.

[0004] Therefore, there is an urgent need for an electric motor and a water purification device to solve the above-mentioned technical problems. Summary of the Invention

[0005] This application provides an electric motor and a water purification device, which can reduce the size of the motor to fit the internal space of the water purification device, simplify the assembly process, improve waterproofing, and reduce the risk of loosening caused by vibration.

[0006] In a first aspect, embodiments of this application provide a motor, comprising:

[0007] The housing includes a support portion and a mounting portion. The mounting portion is disposed on the outer peripheral wall of the support portion and is integrally formed with the support portion. The support portion has a receiving cavity that extends along the axial direction of the support portion.

[0008] The stator assembly is arranged in a ring within the accommodating cavity and is coaxially arranged with the bearing portion;

[0009] The preset size of the motor is W, where W = (D1 + H2) / (L1 + H1), and the value of W ranges from 0.3 to 2.5.

[0010] Wherein, the diameter of the stator assembly along the radial direction of the bearing portion is D1, the length of the bearing portion along its own axial direction is L1, the thickness of the mounting portion is H1, and the distance between the outer peripheral wall of the stator assembly and the outer peripheral wall of the bearing portion along the radial direction of the bearing portion is H2.

[0011] In one possible implementation, the material of the housing includes one of unsaturated polyester molding compound, polyamide, polybutylene terephthalate, or polypropylene.

[0012] In one possible implementation, the value of D1 is in the range of 40mm-90mm, the value of L1 is in the range of 30mm-100mm, the value of H1 is in the range of 2mm-50mm, and the value of H2 is in the range of 1mm-5mm.

[0013] In one possible implementation, the axial direction of the bearing portion is parallel to the length direction of the mounting portion.

[0014] In one possible implementation, at least two mounting portions are provided, and the at least two mounting portions are symmetrically arranged along the axial direction of the bearing portion.

[0015] In one possible implementation, the mounting part is provided with a through mounting hole, and the through direction of the mounting hole is set at an angle to the axial direction of the bearing part.

[0016] In one possible implementation, the mounting holes are provided in a plurality of manner, and the plurality of mounting holes are arranged at intervals.

[0017] In one possible implementation, the plurality of mounting holes are arranged along a preset path, which is one of L-shaped, X-shaped, or Z-shaped.

[0018] In one possible implementation, the shape of the mounting hole includes at least one of U-shape, semi-circle, circle, ellipse or polygon.

[0019] Secondly, embodiments of this application provide a water purification device, which includes a body and a motor as described above, wherein the mounting part of the motor is connected to the body.

[0020] The motor and water purification device provided in this application embodiment include a motor comprising a housing and a stator assembly. The housing includes a support portion and a mounting portion. The mounting portion is disposed on the outer peripheral wall of the support portion and is integrally formed with the support portion. The support portion has a receiving cavity extending along the axial direction of the support portion. The stator assembly is circumferentially disposed within the receiving cavity and coaxially arranged with the support portion. The preset dimension of the motor is W, where W = (D1 + H2) / (L1 + H1), and the value of W ranges from 0.3 to 2.5. The diameter of the stator assembly along the radial direction of the support portion is D1, the length of the support portion along its own axial direction is L1, the thickness of the mounting portion is H1, and the distance between the outer peripheral wall of the stator assembly and the outer peripheral wall of the support portion along the radial direction of the support portion is H2. The water purification device includes a body and the aforementioned motor, with the motor's mounting portion connected to the body.

[0021] Since the mounting section and the support section are integrally formed, there is no need for additional independent mounting brackets and fasteners, which reduces the number of motor assembly steps and the overall space occupied by the motor. Furthermore, the integrated structure reduces the outward transmission of motor vibration and improves the connection stability and waterproofing between the support section and the mounting section. By limiting the range of the preset dimension W, constraints can be placed on the dimensional proportions between the stator assembly, the support section, and the mounting section, ensuring that the motor's mounting support conditions, housing structural strength, and overall motor dimensions are mutually compatible. Through these features, the motor and water purification device of this application can reduce the motor size to fit the internal space of the water purification device, simplify the assembly process, improve waterproofing, and reduce the risk of loosening caused by vibration. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] Figure 1 This is a first isometric view of the motor provided in an embodiment of this application.

[0024] Figure 2 This is a second isometric view of the motor provided in an embodiment of this application.

[0025] Figure 3 A front view of the motor provided in an embodiment of this application.

[0026] Figure 4 A side view of the motor provided in an embodiment of this application.

[0027] Figure 5 A top view of the motor provided in an embodiment of this application.

[0028] Figure 6 for Figure 5 Sectional view at point AA.

[0029] Figure 7 This is a third isometric view of the motor provided in an embodiment of this application.

[0030] Figure label:

[0031] 100. Housing; 110. Supporting part; 111. Receiving cavity; 112. Clearance part; 120. Mounting part; 121. Mounting hole; 200. Stator assembly.

[0032] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] In water purification equipment, the water pump motor is the core component that provides the power for water flow inside the water purification device.

[0035] Currently, water pump motors in water purification equipment are typically fixed to the motor housing using an independent mounting bracket to achieve assembly and support within the overall unit. Existing mounting brackets are mostly split structures, usually relying on screws and other fasteners for connection to the housing. This not only involves a complex assembly process and occupies a large space, affecting the motor's waterproof performance, but also allows motor vibrations to be directly transmitted to the housing. Over time, this can cause loosening at the connections, affecting connection stability and lifespan. Furthermore, conventional water pump motors are generally bulky, making them unsuitable for installation in the confined spaces of water purification devices.

[0036] To address this, this application provides a motor and a water purification device. By setting the mounting part and the supporting part of the housing as an integral molded structure, the independent split mounting bracket is eliminated, and the preset size W of the motor is limited to a range of 0.3-2.5, the overall space occupied by the motor is reduced, the possibility of loosening at the connection due to vibration is reduced, thereby adapting to the narrow installation space inside the water purification device.

[0037] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7This application provides an electric motor. The motor includes a housing 100 and a stator assembly 200. The housing 100 includes a support portion 110 and a mounting portion 120. The mounting portion 120 is disposed on the outer peripheral wall of the support portion 110 and is integrally formed with the support portion 110. The support portion 110 has a receiving cavity 111, which extends along the axial direction of the support portion 110. The stator assembly 200 is circumferentially disposed within the receiving cavity 111 and coaxially disposed with the support portion 110. The preset dimension of the motor is W, where W = (D1 + H2) / (L1 + H1), and the value of W ranges from 0.3 to 2.5.

[0039] The stator assembly 200 has a radial diameter of D1 along the bearing portion 110, the bearing portion 110 has an axial length of L1, the mounting portion 120 has a thickness of H1, and the distance between the outer peripheral wall of the stator assembly 200 and the outer peripheral wall of the bearing portion 110 along the radial direction of the bearing portion 110 is H2.

[0040] It should be noted that the housing 100 is the load-bearing outer shell of the motor, used to form the mounting structure of the internal components of the motor and provide an external fixing base. The housing 100 includes a support part 110 and a mounting part 120, wherein the support part 110 is used to enclose and support the stator assembly 200, and the mounting part 120 is used to connect to the mounting structure of external equipment.

[0041] Furthermore, the support part 110 and the mounting part 120 are integrally formed, so there is no need to configure additional independent mounting brackets and fasteners, which can reduce the motor assembly process and reduce the overall space occupied by the motor. Moreover, the integrated structure can reduce the degree of motor vibration transmission to the outside, and improve the connection stability and waterproof capability between the support part 110 and the mounting part 120.

[0042] For example, in some possible embodiments, the housing 100 can be manufactured by injection molding, which can reduce assembly steps and connection gaps, and improve the overall structural integrity and dimensional consistency of the housing 100. In other embodiments, the housing 100 can also be manufactured by compression molding, casting molding, or compression molding.

[0043] It should be noted that the molding and processing method and material type of the housing 100 can be adjusted according to actual needs. As long as the housing 100 can stably accommodate the stator assembly 200 and can be assembled and fixed with external equipment through the mounting part 120, this application does not impose too many restrictions on the housing 100.

[0044] Furthermore, the support portion 110 is the main support structure for accommodating the stator assembly 200. The interior of the support portion 110 forms a receiving cavity 111 extending along the axial direction for the stator assembly 200 to be fitted, positioned, and limited. The support portion 110 undertakes the main structural support function when the motor is working, and its outer peripheral wall is connected to the mounting portion 120 to form a unified force path.

[0045] It should be noted that the length L1 of the bearing part 110 along its own axis can be adjusted according to the installation space of the motor and matched with the axial length of the stator assembly 200, so that the stator assembly 200 can obtain stable circumferential constraint within the accommodating cavity 111.

[0046] In addition, the mounting part 120 is an external connection structure located on the outer peripheral wall of the bearing part 110. The mounting part 120 is used to fix the motor to the mounting position of the external equipment. It should be noted that the thickness H1 of the mounting part 120 determines the structural thickness of the mounting part 120 itself and the supporting foundation, which directly affects the load-bearing and vibration resistance of the mounting part 120. The specific configuration can be determined according to the connection load, the stress area, and the structural requirements of the housing 100.

[0047] It should be understood that the receiving cavity 111 is a hollow cavity formed inside the support portion 110. The receiving cavity 111 extends along the axial direction of the support portion 110 and is used to accommodate and define the position of the stator assembly 200. The inner wall of the receiving cavity 111 is disposed opposite to the outer peripheral surface of the stator assembly 200, so that the stator assembly 200 and the support portion 110 are arranged coaxially, thereby providing a basis for the cooperation between the internal components of the motor.

[0048] The stator assembly 200 is a stationary component of the motor arranged within the receiving cavity 111. The stator assembly 200 is circumferentially disposed within the receiving cavity 111 and coaxially arranged with the support portion 110 to enable motor driving operation. During operation, the stator assembly 200 remains stationary and is reliably fixed through radial engagement with the support portion 110.

[0049] The preset dimension W is a dimensional parameter used to characterize the overall structural relationship of the motor. The preset dimension W is defined by the diameter D1 of the inner diameter of the stator assembly 200 along the radial direction of the support portion 110, the length L1 of the support portion 110 along its own axial direction, the thickness H1 of the mounting portion 120, and the distance H2 between the outer peripheral wall of the stator assembly 200 and the outer peripheral wall of the support portion 110 along the radial direction of the support portion 110, and satisfies W=(D1+H2) / (L1+H1), and the value range of W is 0.3-2.5.

[0050] In some possible embodiments, D1, L1, H1, and H2 can be adjusted according to the motor's installation space and its own structural requirements. By setting preset dimensions, the motor can form a relatively coordinated axial and radial ratio relationship while satisfying the assembly of the stator assembly 200 and the fixation of the housing 100, thereby adapting to the arrangement requirements in a limited installation space.

[0051] By limiting the range of the preset dimension W, constraints can be imposed on the dimensional ratios between the stator assembly 200, the support portion 110, and the mounting portion 120, ensuring that the motor's mounting support conditions, the structural strength of the housing 100, and the overall dimensions of the motor are mutually compatible. Through these settings, the motor and water purification device of this application can reduce the motor's size to fit the internal space of the water purification device, simplify the assembly process, and reduce the risk of loosening caused by vibration.

[0052] Specifically, in one possible embodiment, with D1=40mm, H2=2mm, L1=90mm, and H1=10mm, the calculated value is W=(40+2) / (90+10)=0.42, which is within the range of 0.3-2.5. In this case, the value of W is relatively small, the overall radial dimension of the motor is relatively small, and the axial length is relatively large. The motor has a slender structure, which is suitable for installation in narrow cavities with narrow radial space and sufficient axial space in the water purification device. The slender structure can reduce the radial footprint of the motor and reduce the probability of interference with surrounding pipes.

[0053] In another possible embodiment, with D1=60mm, H2=3mm, L1=55mm, and H1=8mm, we can calculate W=(60+3) / (55+8)=1.00, which is within the range of 0.3-2.5. At this time, the value of W is close to 1, the radial and axial dimensions of the motor are balanced, and the space occupied by the radial and axial dimensions is roughly the same. This is suitable for the general installation conditions of most conventional water purification equipment. The balanced size ratio can make the force on the shell 100 more uniform in all directions, which is beneficial to dispersing the vibration load generated by the motor operation.

[0054] In another possible embodiment, with D1=80mm, H2=4mm, L1=30mm, and H1=8mm, we can calculate W=(80+4) / (30+8)=2.21, which is within the range of 0.3-2.5. In this case, the value of W is relatively large, the overall radial dimension of the motor is relatively large, and the axial length is relatively small. The motor has a flat and wide structure, which is suitable for flat cavity conditions where the axial installation height of the water purification device is limited and there is a lot of radial space. The shorter axial length can reduce the vibration amplitude of the motor in the axial direction and improve the positional stability of the motor when it is running at high speed.

[0055] It should be understood that the above three sets of parameters are only illustrative examples. Other W values ​​in the range of 0.3-2.5 can be flexibly selected according to the shape of the inner cavity (installation space) of the water purification device, the load conditions, and the installation strength requirements.

[0056] In one possible embodiment, the diameter of the support portion 110 is D2, and the value of D2 ranges from 70mm to 120mm. The mounting portion 120 is provided with a plurality of mounting holes 121 at intervals. Along the radial direction of the support portion 110, the center distance between two adjacent mounting holes 121 is L2, wherein the value of L2 / D2 ranges from 0.8 to 2.

[0057] The mounting holes 121 spaced apart on the mounting part 120 serve as connection points for fixing the motor to the outside. Along the radial direction of the bearing part 110, the center distance L2 between two adjacent mounting holes 121 can determine the distribution span between each fixing point.

[0058] It should be noted that the diameter D2 of the bearing part 110 is used to limit the overall radial profile size of the housing 100, match the internal assembly space of the water purification device and the maximum adaptable outer diameter of the stator assembly 200, and control the overall radial occupancy size of the motor while ensuring that the accommodating cavity 111 can stably accommodate and limit the stator assembly 200.

[0059] In some possible embodiments, D2 and L2 can be adjusted according to the motor assembly space, the external dimensions of the stator assembly 200, and the installation force requirements. By setting the diameter of the bearing part 110 to D2, the external shape of the housing 100 can be constrained, taking into account both the internal component accommodation conditions and the overall machine space layout requirements.

[0060] By limiting the range of L2 / D2, the distribution span of the mounting hole 121 can be matched with the outline size of the housing 100, so that the distribution of each stress point of the mounting part 120 is within a reasonable range, thereby alleviating the local stress concentration generated under motor operation conditions and reducing the probability of microcracks in the housing 100 and loosening of the mounting hole 121.

[0061] Specifically, in one possible embodiment, D2=70mm and L2=56mm are taken, and L2 / D2=0.8 can be calculated. This value is in the range of 0.8-2. At this time, the value of L2 / D2 is relatively small. Along the radial direction of the bearing part 110, the center distance between adjacent mounting holes 121 is relatively small relative to the radial dimension of the housing 100. The mounting holes 121 are relatively concentrated, which is suitable for assembly conditions where the radial dimension of the housing 100 is limited and the fixed points can be arranged compactly. This can reduce the extension range of the mounting part 120 in the radial direction of the housing 100.

[0062] In another possible embodiment, D2=90mm and L2=135mm are taken, and L2 / D2=1.5 can be calculated. This value is in the range of 0.8-2. At this time, the value of L2 / D2 is in the middle range. The distribution span of the mounting holes 121 along the radial direction of the bearing part 110 is moderately matched with the radial dimension of the housing 100. It is suitable for the assembly conditions of most conventional water purification devices, which facilitates the distribution of the force after the motor is locked and is suitable for the conventional vibration load of the motor.

[0063] In another possible embodiment, D2=120mm and L2=240mm are taken, and L2 / D2=2 can be calculated. This value is in the range of 0.8-2. At this time, the value of L2 / D2 is relatively large. Along the radial direction of the bearing part 110, the center distance between adjacent mounting holes 121 is relatively large relative to the radial dimension of the housing 100. The distribution span of the mounting holes 121 is larger, which is suitable for working conditions with high requirements for assembly locking torque and can expand the range of force support.

[0064] It should be understood that the above three sets of parameters are only illustrative examples. Other L2 / D2 values ​​in the range of 0.8-2 can be flexibly selected according to the internal installation space of the water purification device, the load conditions, and the installation strength requirements.

[0065] It should be understood that limiting the diameter D2 of the support part 110 to the range of 70mm-120mm can accommodate the limited assembly space inside the water purification device, while taking into account the structural dimensions of the housing 100 and the accommodation requirements of the internal stator assembly 200.

[0066] By limiting the range of L2 / D2, the distribution span of the mounting hole 121 can be matched with the outline size of the housing 100, so that the distribution of each stress point of the mounting part 120 is within a reasonable range, thereby alleviating the local stress concentration generated under motor operation conditions and reducing the probability of microcracks in the housing 100 and loosening of the mounting hole 121.

[0067] With the above settings, the motor in this embodiment can be adapted to the narrow installation space inside the water purification device, simplifying the assembly process and improving waterproof performance. At the same time, by optimizing the size ratio of the distribution of the mounting holes 121 to the outline of the housing 100, the vibration load is dispersed, reducing the risk of damage to the housing 100 and loosening of the installation caused by vibration.

[0068] In one possible embodiment, the height of the motor is H3 along the radial direction of the support portion 110 perpendicular to the thickness direction of the mounting portion 120, and the diameter of the support portion 110 is D2, with the value of D2 ranging from 70mm to 120mm, wherein the value of H3 / D2 ranges from 0.5 to 2.0.

[0069] By limiting the value range of H3 / D2 to 0.5-2.0, the dimensional ratio between the motor height and the diameter of the supporting part 110 can be standardized, ensuring a harmonious overall proportion of the motor profile. This avoids problems such as insufficient motor height and weak structural support of the housing 100 due to an excessively small ratio, or low space utilization due to an excessively large ratio. It also ensures uniform stress distribution across the housing 100, improving its structural stability.

[0070] Specifically, in one possible embodiment, D2=100mm and H3=50mm are taken, and H3 / D2=0.5 can be calculated. This value is in the range of 0.5-2.0. At this time, the motor height is small and the overall structure is compact, which is suitable for the working conditions of limited internal installation space and lightweight installation of water purification devices.

[0071] In another possible embodiment, D2=90mm and H3=108mm are taken, and H3 / D2=1.2 can be calculated. This value is in the range of 0.5-2.0. At this time, the motor size is well-proportioned, and the strength of the housing structure and the space occupation are well matched, which is suitable for the general assembly conditions of most conventional household water purification devices.

[0072] In another possible embodiment, D2=80mm and H3=160mm are taken, and H3 / D2=2.0 can be calculated. This value is in the range of 0.5-2.0. At this time, the motor height is relatively larger, the housing support structure is more sufficient, and it is suitable for the assembly conditions of high load and long-term continuous operation of water purification device.

[0073] It should be understood that the above three sets of parameters are only exemplary embodiments. Other H3 / D2 values ​​in the range of 0.5-2.0 can be flexibly selected according to the internal installation space of the water purification device, the load conditions and the installation strength requirements. This application does not make specific limitations in this regard.

[0074] It is understandable that limiting H3 / D2 to 0.5-2.0 is to constrain the ratio of the axial height to the radial diameter of the bearing part 110 at the overall level. This total range covers a variety of equipment installation conditions and can ensure that the stator assembly 200 is reliably housed inside the accommodating cavity 111 while taking into account the structural strength of the housing 100, the internal space occupied by the equipment, and the vibration transmission suppression effect.

[0075] For specific application scenarios of water purification devices, a narrower range can be selected for the ratio of H3 / D2. For example, in some possible embodiments, along the radial direction of the support portion 110 perpendicular to the thickness direction of the mounting portion 120, the height of the motor is H3, the diameter of the support portion 110 is D2, and the value of D2 ranges from 70mm to 120mm, wherein the value of H3 / D2 ranges from 0.8 to 1.6.

[0076] By selecting this narrower ratio range, the wall thickness of the housing 100, assembly space, vibration load, and injection molding process requirements can be further balanced, the outer contour of the bearing part 110 can be optimized, and the problems of excessive axial dimension and assembly interference caused by an excessively large ratio, and excessive radial dimension and insufficient structural rigidity caused by an excessively small ratio can be avoided. This allows the motor housing 100 to meet the one-piece molding processing conditions while further reducing the risk of stress concentration, microcracks, and loosening of the housing 100 caused by vibration, thus adapting to the actual assembly and long-term operation requirements of the water purification device.

[0077] It should be noted that the motor height H3 is defined radially along the bearing portion 110 perpendicular to the thickness direction of the mounting portion 120 to characterize the overall outer profile height dimension of the motor in this radial direction, thereby determining the ratio of the motor's radial space occupation to the overall structure.

[0078] In some possible embodiments, D2 and H3 can be matched and adjusted according to the motor assembly space, the external dimensions of the stator assembly 200, and the installation force requirements. By limiting the diameter D2 of the bearing part 110 to the range of 70mm-120mm, the radial external dimensions of the housing 100 can be effectively constrained, adapting to the assembly requirements of stator assemblies 200 of different specifications, and taking into account the internal structural accommodation conditions and the space layout requirements of the water purifier.

[0079] By limiting the value range of H3 / D2 to 0.8-1.6, the dimensional ratio between the radial height of the motor and the diameter of the bearing part 110 can be standardized, ensuring a harmonious overall radial profile of the motor. This avoids problems such as insufficient radial height of the motor due to an excessively small ratio, resulting in weak structural support of the housing 100, or low space utilization due to an excessively large ratio, thus ensuring uniform stress distribution and enhanced structural stability of the housing 100.

[0080] Specifically, in one possible embodiment, D2=70mm and H3=56mm are taken, and H3 / D2=0.8 can be calculated. This value is in the range of 0.8-1.6. At this time, the radial height of the motor is relatively smaller, the whole machine structure is compact, and it is suitable for the working conditions of narrow radial space and lightweight installation of water purification device.

[0081] In another possible embodiment, D2=90mm and H3=108mm are taken, and H3 / D2=1.2 can be calculated. This value is in the range of 0.8-1.6. At this time, the radial dimension of the motor is balanced, and the strength of the housing structure and the space occupation are optimally balanced, which is suitable for the general assembly conditions of most conventional household water purification devices.

[0082] In another possible embodiment, D2=120mm and H3=192mm are taken, and H3 / D2=1.6 can be calculated. This value is in the range of 0.8-1.6. At this time, the radial height of the motor is larger, the span of the housing support is higher, and the structural rigidity and vibration resistance are better, which is suitable for commercial water purification conditions with large flow, high load and long-term high frequency start and stop.

[0083] It should be understood that the above three sets of parameters are only illustrative examples. Other H3 / D2 values ​​in the range of 0.8-1.6 can be flexibly selected according to the internal installation space of the water purification device, the load conditions, and the installation strength requirements.

[0084] Specifically, in one possible embodiment, the support portion 110 has a cylindrical structure, and the accommodating cavity 111 extends along the central axis of the cylinder. The cylindrical support portion 110 has a uniform circumferential force distribution, and the stator assembly 200 can maintain good coaxiality after being installed in the accommodating cavity 111, reducing eccentric disturbances during motor operation. It also facilitates the arrangement of the mounting portion 120 on the outer peripheral wall of the support portion 110, so that the force on the mounting portion 120 can be transmitted to the body of the support portion 110 more evenly.

[0085] The mounting part 120 is a flat plate structure, and the flat plate structure extends tangentially along the radial direction perpendicular to the bearing part 110. It can provide an assembly and fixing position without increasing the radial profile of the bearing part 110, which facilitates the motor to complete the assembly and positioning of the whole machine.

[0086] In another possible embodiment, the support portion 110 is a polygonal cylindrical structure, and the accommodating cavity 111 extends along the central axis of the polygonal cylindrical structure. The outer periphery of the polygonal cylindrical support portion 110 has a planar sidewall, which facilitates demolding during the molding process of the housing 100. At the same time, the planar sidewall can provide a flat connection base for the mounting portion 120, which is beneficial for the structural forming when the mounting portion 120 and the support portion 110 are integrally formed, and is suitable for assembly environments with planar limitations inside the whole machine.

[0087] It should be noted that the outer contour of the support part 110 can be adjusted according to the shape of the internal cavity of the water purification device and the requirements of the molding process. As long as the accommodating cavity 111 inside the support part 110 can accommodate the stator assembly 200 and the mounting part 120 can be provided on the outer peripheral wall of the support part 110, this application does not impose too many restrictions on the specific external shape and structure of the support part 110.

[0088] It should be understood that by limiting the value range of H3 / D2 to 0.8-1.6, a reasonable ratio constraint can be formed between the radial height of the motor and the diameter of the bearing part 110, so that the radial structural dimensions of the motor are balanced, ensuring the overall structural stability of the housing 100, and avoiding insufficient structural strength or waste of space due to imbalance in the size ratio.

[0089] With the above settings, the motor in this embodiment can be adapted to the narrow installation space inside the water purification device, simplifying the assembly process, improving waterproof performance, ensuring the overall structure of the housing 100 is uniform and stable, and reducing the risk of damage to the housing 100 and loosening of the installation caused by vibration.

[0090] In one possible embodiment, the material of the housing 100 includes one of unsaturated polyester molding compound, polyamide, polybutylene terephthalate, or polypropylene.

[0091] It is understandable that the above materials can all be processed into an integral structure formed by the bearing part 110 and the mounting part 120 using an integral molding process, thereby reducing the connection interface caused by the split structure and reducing local stress concentration caused by material differences.

[0092] Moreover, the thickness of the shell 100 can be flexibly adjusted within the range of 2mm to 50mm according to the material shrinkage rate, molding tolerance, load-bearing capacity and heat dissipation requirements. While meeting the structural support capacity, it will not occupy too much internal space and is suitable for miniaturized settings.

[0093] Among them, unsaturated polyester molding compound (BMC) can be manufactured into complex shapes through injection molding, and has the characteristics of high strength, good insulation, and strong corrosion resistance. Using the above material for integrated injection molding allows the mounting part 120 and the load-bearing part 110 to be formed simultaneously. Since the two are completely compatible in terms of materials and processes, no additional stamping or welding processing is required, which can also reduce the use of fasteners such as screws, simplify the overall processing and assembly process, and improve waterproofing.

[0094] Moreover, the BMC material has a uniform coefficient of thermal expansion, which can avoid stress concentration and cracking of the shell 100 caused by uneven expansion and contraction of different materials under temperature difference conditions. In addition, the shell 100 formed by BMC material can absorb the vibration energy during motor operation through slight deformation of its own structure, reducing the direct impact of vibration on the shell 100 and weakening the vibration transmission effect.

[0095] Among them, the polyamide shell 100 has good fatigue resistance and can withstand the vibration load caused by long-term operation of the motor. The shell 100 also has strong resistance to deformation. In addition, the molding shrinkage of polybutylene terephthalate is controllable, and the processed shell 100 has good tolerance accuracy, which can stably fit the assembly size requirements of other motor components. Polypropylene material has good molding fluidity and low raw material cost. The molded shell 100 has good chemical corrosion resistance and can withstand the media that come into contact with the inside of the water purification device. Moreover, polypropylene material is easy to process and mold, which facilitates the mass production of the shell 100.

[0096] It should be noted that the housing 100 typically does not move actively during operation. The housing 100 primarily bears the vibrations generated by the motor rotation, assembly preload, and external impact loads. Using the aforementioned material to manufacture the housing 100 achieves a good balance between insulation protection, mechanical support, and manufacturing adaptability.

[0097] When the motor starts and enters the working state, the housing 100 can maintain stable support for the stator assembly 200 while buffering a certain degree of vibration transmission and reducing stress concentration in the connection area. This helps to reduce the risk of loosening, micro-cracks and abnormal noise, solves the problems of poor compatibility, complex assembly, poor waterproofing and high cost of traditional metal brackets and non-metallic housings 100, and improves the overall assembly stability and service life of the motor in the water purification device.

[0098] In one possible embodiment, the value of D1 ranges from 40mm to 90mm, the value of L1 ranges from 30mm to 100mm, the value of H1 ranges from 2mm to 50mm, and the value of H2 ranges from 1mm to 5mm.

[0099] By setting corresponding value ranges for the diameter D1 of the stator assembly 200 along the radial direction of the support portion 110, the length L1 of the support portion 110 along its own axial direction, the thickness H1 of the mounting portion 120, and the radial distance H2 between the outer peripheral wall of the stator assembly 200 and the outer peripheral wall of the support portion 110, the stator assembly 200 can be smoothly assembled into the receiving cavity 111 of the support portion 110, which facilitates the assembly operation of the mounting portion 120. In the limited internal space of the water purification device, the structural compactness of the motor, the component fitting accuracy, and the installation support strength are balanced.

[0100] It should be understood that if the values ​​of D1 and L1 are too small, it will limit the specification compatibility range of the stator assembly 200, making it unable to meet the assembly requirements of high-power motors; if the values ​​of D1 and L1 are too large, it will increase the overall size of the motor, which is not conducive to the miniaturization of the water purification device. If the value of H1 is too small, the structural rigidity of the mounting part 120 will be insufficient, making it difficult to withstand the assembly preload and motor operating vibration load; if the value of H1 is too large, it will occupy too much assembly space. If the value of H2 is too small, it will not be able to reserve buffer space for component assembly deviation, thermal expansion and contraction, and operating vibration; if the value of H2 is too large, it will easily cause the stator assembly 200 to be misaligned, affecting operational stability.

[0101] Specifically, when the radial diameter D1 of the inner edge of the bearing portion 110 of the stator assembly 200 is 40mm, its overall radial dimension is small, which can be adapted to the compact installation space of small household water purification devices. It is suitable for continuous water purification conditions with low flow and low load, and can effectively reduce the overall radial footprint of the motor, thus achieving a miniaturized layout of the whole machine.

[0102] When the radial diameter D1 of the inner edge of the bearing portion 110 of the stator assembly 200 is 90mm, the overall radial assembly space of the motor is sufficient, which can be adapted to the assembly and installation of large-size stator assemblies 200. It is suitable for high-load conditions of household or commercial high-flow water purification equipment and can meet the output and electromagnetic matching requirements of high-power motors.

[0103] When the length L1 of the bearing part 110 along its own axis is 30mm, the overall axial length of the motor is shorter and the structure is more compact. It is suitable for wall-mounted and tabletop water purification equipment with limited internal installation space. It is suitable for water purification conditions with normal frequency and stable operation, and can reduce the axial space occupation while ensuring basic working performance.

[0104] When the length L1 of the bearing part 110 along its own axis is 100mm, the length of the accommodating cavity 111 is sufficient to accommodate stator assembly 200 with more laminations and longer axial dimensions. This is suitable for commercial water purification applications that require long-term continuous operation and can improve the overall working stability and upper limit of the motor's output power.

[0105] When the thickness H1 of the mounting part 120 is 2mm, the overall thickness of the mounting part 120 is small, and it occupies less space. It is suitable for household water purification work conditions with normal load and small vibration amplitude. It can further optimize the overall structural size of the motor while meeting the basic assembly and fixing strength.

[0106] When the thickness H1 of the mounting part 120 is 50mm, the structural thickness of the mounting part 120 is sufficient, and the overall rigidity and deformation resistance are stronger. It can effectively resist the vibration load and external impact load during the high-load operation of the motor. It is suitable for water purification conditions with long-term continuous start-stop and high-load operation, and reduces the probability of loosening and deformation of the installation position.

[0107] When the distance H2 between the outer peripheral wall of the stator assembly 200 and the outer peripheral wall of the support part 110 along the radial direction of the support part 110 is 1mm, the radial fit clearance between the stator assembly 200 and the support part 110 is smaller, the overall radial structure of the motor is more compact, the dimensional regularity is higher, and the overall size of the machine can be effectively controlled, adapting to the fine assembly requirements of various small water purification equipment.

[0108] When the distance H2 between the outer peripheral wall of the stator assembly 200 and the outer peripheral wall of the support part 110 along the radial direction of the support part 110 is 5mm, the radial clearance between the two is sufficient, which can provide a buffer margin for the machining tolerance of the parts, the thermal expansion and contraction deformation during operation and the micro vibration during operation, avoid hard extrusion, collision and wear between the stator assembly 200 and the support part 110, and improve the structural reliability of the motor during long-term operation.

[0109] In some embodiments, D1, L1, H1, and H2 can all be selected as continuous values ​​within the corresponding intervals, or other discrete values ​​within the intervals can be selected to complete the size matching. Specifically, they can be flexibly adapted according to the overall size of the water purification device, the load conditions, and the installation strength requirements. This application does not impose too many restrictions on the specific discrete values.

[0110] In some possible embodiments, the stator assembly 200 may adopt a structure of laminated iron core plus winding, the support part 110 may be a cylindrical or near-cylindrical structure, and the mounting part 120 may be an annular flange, a radial boss, or a locally thickened mounting ear structure. The above-mentioned size range can be combined to complete the fitting assembly, ensuring the fitting accuracy and structural consistency between the various structures.

[0111] By matching the above-mentioned dimensional parameters, during the operation of the motor, the axial length L1 of the bearing part 110 and the diameter D1 of the stator assembly 200 cooperate with each other to ensure that the stator assembly 200 can be arranged completely and stably along its own axis. The spacing corresponding to H2 can accommodate assembly deviations, thermal expansion and contraction of materials, and slight displacement caused by operating vibration. The thickness corresponding to H1 can ensure the bearing capacity and deformation resistance of the mounting part 120, so that the motor can be arranged in a coordinated manner within a limited installation space, thereby taking into account assembly convenience, structural stability and long-term operational reliability.

[0112] In one possible embodiment, the axial direction of the support portion 110 is parallel to the longitudinal direction of the mounting portion 120.

[0113] By setting the length direction of the mounting part 120 to be parallel to the axial direction of the bearing part 110, the mounting part 120 can be arranged along the extension direction of the accommodating cavity 111, making the relative position between the mounting part 120 and parts such as the stator assembly 200 more coordinated. This is beneficial for the uniform force distribution during motor assembly and fixing, and also for maintaining a compact arrangement between the pipeline, pump body and motor within the limited space inside the water purification equipment.

[0114] It should be understood that if the length direction of the mounting part 120 forms an angle with the axial direction of the bearing part 110, the housing 100 is easily subjected to eccentric load after the motor is fixed, and the mounting position is prone to local bending moment, which will increase the risk of loosening at the connection under long-term vibration conditions.

[0115] Specifically, in some possible embodiments, when the mounting part 120 extends outward along the axial direction of the bearing part 110 to form a strip or sheet structure, the strip or sheet structure can provide a larger connection area and can distribute the clamping load after the motor is fixed; when the mounting part 120 extends outward along the axial direction of the bearing part 110 to form an ear-shaped structure, the ear-shaped structure is convenient for opening mounting through holes and is suitable for locking and fixing the motor to the water purification device with fasteners such as screws.

[0116] In some embodiments, the mounting portion 120 may be configured to extend unilaterally, symmetrically on both sides, or distributed on multiple sides relative to the support portion 110. In other embodiments, the mounting portion 120 may also be a solid ear plate integrally injection-molded or molded along the outer peripheral wall of the support portion 110, a reinforcing boss, or a locally thickened elongated mounting platform. This application does not impose excessive limitations on the specific shape and extension distribution of the mounting portion 120.

[0117] In one possible embodiment, the material of the mounting part 120 is the same as or compatible with the material of the bearing part 110. For example, it can be selected from unsaturated polyester resin molding compound, polyamide, polybutylene terephthalate or polypropylene, to ensure that the thermal expansion characteristics and mechanical properties of the mounting part 120 and the bearing part 110 are matched, thereby reducing the risk of the housing 100 warping, the mounting position loosening or the housing 100 cracking during long-term operation of the motor.

[0118] The length of the mounting part 120 is usually greater than the thickness of the mounting part 120 itself. The extension length of the mounting part 120 along the axial direction of the bearing part 110 can be set according to the installation requirements of the whole water purification device. The thickness of the mounting part 120 can be set to an appropriate value in the range of 2mm-50mm according to the bearing load, taking into account both the structural strength and space occupation of the mounting part 120.

[0119] During actual operation, the stator assembly 200 is energized within the support portion 110 and drives the rotor assembly or pump body. The mounting portion 120, through its connection with the external fixed structure, directly transmits the reaction force, vibration, and start-stop impact generated by the motor to the support portion 110. Because the mounting portion 120 is parallel to the axis of the support portion 110, it reduces the generation of eccentric loads and local bending moments, allowing the housing 100 to maintain a relatively stable installation posture during long-term operation, and reducing the probability of loosening between the mounting portion 120 and the external fixed structure due to thermal expansion and contraction or repeated vibration.

[0120] Through the above-described configuration, the motor in this embodiment can improve the assembly consistency, space utilization, and operational reliability of the motor in the water purification equipment.

[0121] In one possible embodiment, the axial direction of the support portion 110 is set at an angle to the length direction of the mounting portion 120, and the value of the included angle is in the range of 0°-5°.

[0122] By controlling the axial direction of the bearing part 110 and the length direction of the mounting part 120 within the range of 0°-5°, a draft angle can be formed during the integral injection molding process of the bearing part 110 and the mounting part 120, which facilitates the mold to remove the molded shell 100 and reduces the occurrence of structural tearing and surface damage during the demolding process of the shell 100.

[0123] Specifically, in some possible embodiments, the angle between the axial direction of the support portion 110 and the length direction of the mounting portion 120 is set to 0°. At this time, the axial direction of the support portion 110 and the length direction of the mounting portion 120 are parallel to each other, and the mounting portion 120 is arranged in the same direction as the support portion 110, which is suitable for working conditions where the coaxiality of the motor assembly is required to be high.

[0124] In some other possible embodiments, the angle between the axial direction of the support portion 110 and the length direction of the mounting portion 120 is set to 3°. This angle can provide a suitable draft angle to meet the process requirements for demolding the housing 100. At the same time, the positional offset between the support portion 110 and the mounting portion 120 is small, which can maintain the positional accuracy during motor assembly.

[0125] In other embodiments, the angle between the axial direction of the support portion 110 and the length direction of the mounting portion 120 can be adjusted in combination with the mold structure, the material properties of the housing 100 and the assembly precision requirements. This application does not impose too much limitation on the specific value of the angle.

[0126] In one possible embodiment, at least two mounting portions 120 are provided, and the at least two mounting portions 120 are symmetrically arranged along the axial direction of the support portion 110.

[0127] By symmetrically arranging at least two mounting parts 120 along the axial direction of the bearing part 110, multiple assembly and fixing points can be formed between the motor and the water purification device. After tightening, the force on each mounting part 120 can be balanced, reducing the situation where a single mounting point bears all the vibration load and impact load. This is beneficial for stabilizing and limiting the installation posture of the motor within the limited internal space of the water purification device.

[0128] It should be understood that if only a single mounting part 120 is provided, the motor is prone to being subjected to force on one side after it is fixedly assembled, and it is easy to deviate during operation and vibration. Moreover, if multiple mounting parts 120 are not symmetrically arranged along the axial direction of the bearing part 110, the load distribution at each mounting point will be uneven, and the mounting part 120 on the side with a larger load is more likely to loosen under long-term vibration conditions.

[0129] Specifically, in one possible embodiment, when there are two mounting parts 120 and the two mounting parts 120 are symmetrically arranged along the axial direction of the bearing part 110, the two mounting parts 120 can respectively bear the pre-tightening force of fasteners such as screws. After locking, the force on both sides of the motor is balanced, which is suitable for the horizontal installation conditions of most conventional water purification equipment.

[0130] In another possible embodiment, four mounting parts 120 are provided, and the four mounting parts 120 are arranged symmetrically at four corners along the axial direction of the bearing part 110. This can disperse the vibration load generated during motor start-up and shutdown and operation, and is suitable for water purification conditions with high load and long-term continuous operation.

[0131] In some embodiments, the shape and thickness of each mounting part 120 can be kept consistent. In other embodiments, each mounting part 120 can also be configured with a different shape structure according to the reserved installation position on the water purification equipment frame. This application does not impose too many restrictions on the specific shape of a single mounting part 120.

[0132] It should be understood that during actual assembly and operation, fasteners pass through each mounting part 120, and the motor is fixedly installed onto the water purification device. The vibration load generated by the motor operation can be shared by the multiple axially symmetrically distributed mounting parts 120, resulting in small load deviations at each mounting point and alleviating the local bending moment on the housing 100. Through the above-mentioned design, the motor in this embodiment can reduce the possibility of installation loosening caused by long-term vibration, and improve the positional stability and operational reliability of the motor after assembly.

[0133] In one possible embodiment, the mounting portion 120 is provided with a through mounting hole 121, and the through direction of the mounting hole 121 is set at an angle to the axial direction of the bearing portion 110.

[0134] The mounting hole 121 is used to insert fasteners such as screws to fix the motor housing 100 to the relevant structure of the water purification device. Since the through direction of the mounting hole 121 is arranged at an angle to the axial direction of the bearing portion 110, the locking force of the fasteners acts on the mounting portion 120 from the radial or oblique direction of the bearing portion 110. Compared with the installation method of locking along the axial direction of the bearing portion 110, the load-bearing structure of the mounting portion 120 has higher strength and less deformation under load, thereby optimizing the force transmission path after the motor is assembled and reducing the risk of fastener loosening under long-term vibration conditions of the motor.

[0135] Specifically, in some possible embodiments, the angle formed by the through direction of the mounting hole 121 and the axial direction of the support portion 110 is set to 90°, that is, the mounting hole 121 is arranged radially through the support portion 110, and the fastener is locked and fixed perpendicular to the axis of the support portion 110, which is suitable for assembly conditions where the motor sidewall is laterally fixed.

[0136] In some other possible embodiments, the angle formed by the through direction of the mounting hole 121 and the axial direction of the bearing portion 110 is set to 45°. The fastener is locked along the inclined direction, and the locking force can be decomposed into axial force and radial force at the same time. It is suitable for assembly conditions with limited installation space and can take into account both the lateral and axial limiting effects of the motor.

[0137] In other embodiments, the angle between the through direction of the mounting hole 121 and the axial direction of the bearing portion 110 can be adjusted according to the reserved installation position, assembly space and force requirements of the water purification device. This application does not impose too many restrictions on the specific value of the angle between the mounting hole 121 and the axial direction of the bearing portion 110.

[0138] In one possible embodiment, a plurality of mounting holes 121 are provided, and the plurality of mounting holes 121 are arranged at intervals.

[0139] Among them, multiple mounting holes 121 can be matched with multiple sets of fasteners to form multiple assembly force support points on the mounting part 120, realizing multi-point fixed assembly. All or some of the mounting holes 121 can be selected to participate in the assembly and fixation according to the overall structural requirements of the water purification device, adapting to different installation combination methods.

[0140] In some possible embodiments, the number of mounting holes 121 can be set to an even number, and the multiple mounting holes 121 are symmetrically arranged on both sides with the axis of the bearing part 110 as the reference, so that the motor assembly is subjected to uniform force, which is suitable for the standard assembly conditions of conventional water purification equipment.

[0141] In some other possible embodiments, the number of mounting holes 121 can be set to an odd number, wherein at least one mounting hole 121 and the other mounting holes 121 can form an alternating layout structure, which can limit the assembly position of the motor from different directions, adapting to the installation conditions of water purification equipment with special spatial structure and higher assembly limit requirements.

[0142] In some embodiments, the mounting hole 121 can be configured as a round hole, countersunk hole, oblong hole, or hole structure with a guide cone surface. It can also be configured as a structure with equal hole diameter, variable hole diameter, or locally reinforced hole wall as required. This application does not impose too many restrictions on the specific hole structure of the mounting hole 121.

[0143] The diameter of the multiple mounting holes 121 can be set from 3mm to 12mm according to the specifications of the matching fasteners. The hole spacing between adjacent mounting holes 121 can be set from 10mm to 60mm in combination with the thickness of the mounting part 120, the wall thickness of the housing 100, and the operating space of the assembly tool. This ensures that the fastening tool can operate smoothly while guaranteeing the material bearing capacity around the mounting holes 121.

[0144] Furthermore, when the housing 100 is made of unsaturated polyester resin molding compound, polyamide, polybutylene terephthalate or polypropylene, the local load-bearing capacity can be improved by thickening, rounding the corners or reinforcing the mounting holes 121, so as to adapt to the long-term load of the equipment and the use scenarios of repeated disassembly and assembly.

[0145] It should be understood that when the motor is assembled and used, the fasteners can pass through the corresponding mounting holes 121 and lock with the relevant structure of the water purification device. The multi-point fixing structure can evenly distribute the fastening load and the alternating load generated by the motor operation to the entire area of ​​the mounting part 120 and the housing 100, reduce the stress concentration at a single fixing point, constrain the small displacement of the motor, and reduce the local fatigue damage and assembly loosening problems that occur during the long-term operation of the motor.

[0146] With the above settings, this embodiment can optimize the force distribution of the motor without increasing the complexity of the assembly structure, thereby improving the assembly stability and long-term operational reliability of the motor in the water purification equipment.

[0147] In one possible embodiment, the motor further includes a fastener, with a mounting hole 121 provided along the extending direction of the mounting portion 120, and the fastener being adjustablely positioned through the mounting hole 121.

[0148] The mounting hole 121 is arranged along the extension direction of the mounting part 120, which can provide an adjustable assembly stroke for the fastener, so that the fastener can be finely adjusted according to the actual installation point of the water purification device, adapt to the small alignment deviation during the assembly process, reduce the difficulty of motor assembly alignment, and improve the motor assembly adaptability.

[0149] In one possible embodiment, the length of the mounting hole 121 along the extension direction of the mounting portion 120 can be 3mm-57mm. The effective adjustment stroke of the fastener inside the mounting hole 121 is less than the length of the mounting hole 121. This effective adjustment stroke is determined by the length of the mounting hole 121 and the outer diameter of the fastener. This setting can provide an adjustable assembly stroke for the fastener based on different hole length specifications, so that the fastener can be flexibly adapted according to the position of the corresponding installation point on the water purification device, compatible with different ranges of mounting hole positions, and can cope with small alignment deviations during the assembly process, reduce the difficulty of motor assembly alignment, and improve the motor assembly adaptability.

[0150] Specifically, in some possible embodiments, the length of the mounting hole 121 is set to 3mm. After deducting the size occupied by the outer diameter of the fastener, a smaller effective adjustment stroke is obtained. This stroke is suitable for assembly conditions with small deviations and can meet the alignment compensation requirements of conventional installation points of the water purification device.

[0151] In some other possible embodiments, the length of the mounting hole 121 is set to 57mm. After deducting the size occupied by the outer diameter of the fastener, a larger effective adjustment margin can be obtained, which can adapt to the assembly conditions with large deviations in the installation point of the water purification device, and has a wider range of applications.

[0152] In other embodiments, the length of the mounting hole 121 can be any value within the range of 3mm-57mm. The specific value of the effective adjustment stroke corresponding to the fastener can also be adjusted in combination with the installation point tolerance of the water purification device and the outer diameter of the fastener. This application does not impose too many restrictions on the length of the hole and the specific value of the effective adjustment stroke.

[0153] It is understood that in some possible embodiments, the mounting hole 121 can be an elongated hole or a waist-shaped hole. The elongated hole or waist-shaped hole is opened along the extension direction of the mounting part 120. The hole itself has sufficient length margin to allow the fastener to move along the length direction of the hole inside the hole, thereby realizing the position adjustment of the fastener and meeting the use requirements of assembly alignment compensation.

[0154] In some possible embodiments, the fastener can be a screw, which can slide along the extension direction of the mounting hole 121 to adjust its position. After adjustment, it can be fixed by thread locking, which is convenient for disassembly and assembly and is suitable for conventional motor assembly and fixing conditions.

[0155] In some other possible embodiments, the fastener can be a bolt, which is used in conjunction with a washer to provide a larger contact support area, thereby evenly distributing the assembly pressure of the mounting part 120, adapting to the working conditions of long-term vibration operation of the motor, and maintaining the stability of the assembly structure.

[0156] It should be noted that there is no single limitation on the specific structural type of the fastener, as long as the fastener can achieve the adjustable insertion and locking function inside the mounting hole 121.

[0157] In one possible embodiment, a plurality of mounting holes 121 are arranged along a preset path, which is one of L-shaped, X-shaped or Z-shaped.

[0158] The multiple mounting holes 121 can be arranged continuously along a preset path or in segments along a preset path. The turning points of the preset path, the spacing between adjacent mounting holes 121, and the path span can be adjusted according to the shape of the external fixing structure, the hole spacing between the mounting holes 121, and the available assembly space. This allows for the fasteners to be locked and fixed while facilitating the fastening of screws, bolts, and other connecting parts.

[0159] By arranging multiple mounting holes 121 along a preset path, multi-point fixing can be achieved within a limited installation space, reducing stress concentration at local locations of the mounting part 120, and improving the installation stability of the housing 100 and the overall assembly compatibility.

[0160] It should be understood that if multiple mounting holes 121 are arranged along a single straight line, the stress range of the fixing point is relatively concentrated. When the shape of the external fixing structure is irregular and there are many surrounding parts, it is easy to encounter problems such as difficulty in assembly and avoidance and uneven stress.

[0161] Specifically, when the preset path is selected as L-shaped, the mounting holes 121 are arranged along the angle, which is suitable for the case where the installation space is arranged at an angle in the assembly plane; when the preset path is selected as X-shaped, the mounting holes 121 are distributed in a cross pattern, and the fixed points can cover a large installation area and form a symmetrical force effect, which is suitable for the case where the motor fixing stability is required; when the preset path is selected as Z-shaped, the mounting holes 121 are arranged along the staggered broken line, which can avoid obstacles on the mounting surface, and is suitable for the assembly case where there are avoidance requirements or boundary misalignment on the mounting surface.

[0162] The diameter of the mounting hole 121 can be determined according to the specifications of the matching fastener. For example, the diameter of the mounting hole 121 can be set to 3mm-10mm. The center distance between two adjacent mounting holes 121 can be configured according to the turning relationship of the preset path and the size of the mounting surface, and is usually set to 10mm-80mm. The turning angle formed by each hole along the L-shaped, X-shaped or Z-shaped path can be a right angle or an obtuse angle, and can also be adjusted according to the actual assembly space.

[0163] It should be understood that after the motor is assembled and put into operation, the mounting part 120 forms a multi-point fastening connection with the relevant fixing structure of the water purification device through multiple mounting holes 121 arranged along a preset path. Since the mounting holes 121 are not simply linearly arranged, the clamping force applied by the fasteners can be distributed and transmitted to different areas of the mounting part 120 along the preset path, so that the mounting part 120 forms a more balanced support state, suppressing local warping of the mounting part 120 and stress concentration at the edges of the mounting holes 121 under the conditions of motor start-up and shutdown, bearing pulsating loads and long-term vibration.

[0164] Furthermore, by selecting mounting holes 121 with different layout paths according to the overall structure of the water purification device, the mounting holes 121 can avoid the space occupied by the pump body, pipeline or adjacent components inside the water purification device, reduce assembly interference and improve the convenience of installation and operation.

[0165] The above settings can reduce the probability of loose connections and micro-cracks, and improve the structural reliability, assembly compatibility and long service life of the motor during the operation of the water purification equipment.

[0166] In one possible embodiment, the shape of the mounting hole 121 includes at least one of U-shape, semi-circle, circle, ellipse or polygon.

[0167] Among them, the mounting holes 121 of different shapes can be adapted to fasteners of different specifications and different assembly scenarios, which can meet the diverse assembly needs of water purification equipment and improve the overall assembly adaptability of the motor.

[0168] It should be understood that the single-shaped mounting hole 121 has limited applicability and cannot meet the usage requirements of different fastener shapes, different installation precision and different assembly spaces. By flexibly selecting a variety of hole types, the applicability range of the mounting part 120 can be broadened.

[0169] When the mounting hole 121 is set to a U-shape, the open side of the U-shape allows the fastener to slide directly into the hole without having to completely insert the fastener from one end of the hole to the other. This facilitates the later maintenance and disassembly of the motor and adapts to assembly spaces where it is inconvenient to insert the fastener.

[0170] When the mounting hole 121 is set to a semi-circle, its opening size is smaller, which can reduce the weakening of the mounting part 120. While ensuring the basic assembly function, it maintains the structural strength of the mounting part 120 and is suitable for assembly scenarios with limited space and lightweight design.

[0171] Specifically, when the mounting hole 121 is set to be circular, its hole structure is regular and the processing and forming difficulty is low. It can be adapted to the insertion and locking operations of conventional standard fasteners and is suitable for most conventional assembly conditions.

[0172] When the mounting hole 121 is set to an ellipse, its hole body has a certain length margin, which can be adapted to scenarios with slight alignment deviations during assembly, and can reduce the assembly difficulty caused by installation alignment errors.

[0173] When the mounting hole 121 is set as a polygon, the hole wall limiting effect is better, which can limit the circumferential rotation that occurs during the fastener locking process, improve the fit stability of the fastener after assembly, and is suitable for working conditions with long-term vibration and high requirements for assembly limiting accuracy.

[0174] In some embodiments, the plurality of mounting holes 121 on a single mounting portion 120 may be configured with the same shape. In other embodiments, the plurality of mounting holes 121 on a single mounting portion 120 may also be configured with different shaped hole structures according to actual assembly requirements. This application does not impose too many limitations on the specific shape matching of the mounting holes 121.

[0175] With the above settings, the mounting hole 121 of the corresponding shape can be flexibly selected according to the installation space, fastener type and working condition requirements of the water purification equipment, so as to improve the assembly compatibility between the motor and the water purification equipment while ensuring the structural strength and assembly stability of the mounting part 120.

[0176] In one possible embodiment, the support portion 110 is provided with at least one clearance portion 112.

[0177] The clearance portion 112 can be provided on the outer wall or end of the bearing portion 110. The clearance portion 112 is used to provide clearance space for the fasteners that pass through the mounting hole 121, so as to prevent the end of the fastener, the nut and other protruding parts from interfering with the bearing portion 110 after the fastener is tightened, and to ensure that the motor can complete the assembly operation smoothly.

[0178] It should be understood that if the bearing part 110 is not provided with the avoidance part 112, the protruding structure of the fastener after locking is likely to touch the surrounding parts, which will not only increase the difficulty of assembling the motor, but may also cause friction and collision with adjacent parts during the vibration of the motor during operation.

[0179] Specifically, when the clearance part 112 is configured as a groove structure, the groove can accommodate the protruding end of the fastener inside the groove, so that the end of the fastener will not exceed the outer contour of the bearing part 110. This is suitable for working conditions where the components around the motor are arranged compactly and the remaining assembly gap is small. When the clearance part 112 is configured as a cutting plane structure, the cutting plane can make lateral clearance to the installation and operation space of the fastener, making it convenient for the fastening tool to be inserted into the narrow space to complete the fastening operation. This is suitable for assembly conditions where the mounting hole 121 is close to the edge of the bearing part 110 and the operating space is limited.

[0180] In some embodiments, the number of clearance portions 112 corresponds one-to-one with the number of mounting holes 121. In other embodiments, a single clearance portion 112 may be provided to provide clearance space for multiple fasteners simultaneously. This application does not impose excessive limitations on the specific structural shape, location, or quantity ratio of the clearance portions 112.

[0181] It should be understood that during motor assembly, by tightening the fastener through the mounting hole 121, the protruding end of the fastener can extend into the space provided by the clearance part 112, reducing the probability of assembly interference between parts. This design facilitates the assembly of the fastener at the mounting hole 121, improves motor assembly efficiency, and reduces the potential hazards caused by friction and collision between the fastener and surrounding components during motor operation.

[0182] In one possible embodiment, at least two clearance portions 112 are provided, and the at least two clearance portions 112 are symmetrically arranged along the axial direction of the bearing portion 110.

[0183] By symmetrically arranging at least two clearance portions 112 along the axial direction of the bearing portion 110, each clearance portion 112 can provide clearance space for the fasteners in the corresponding mounting holes 121, thereby keeping the assembly gaps on the left and right sides of the motor balanced, reducing the probability of interference between fasteners on one side and surrounding components, and helping the motor to maintain a proper installation posture after assembly.

[0184] It should be understood that if the multiple clearance parts 112 are not symmetrically arranged along the axial direction of the bearing part 110, it is easy to cause insufficient clearance space for fasteners on one side and large clearance space on the other side, resulting in uneven distribution of assembly gaps, which in turn increases the risk of misalignment after the motor is locked.

[0185] Specifically, in one possible embodiment, two clearance portions 112 are provided, and the two clearance portions 112 are arranged symmetrically on both sides along the axial direction of the bearing portion 110. The two clearance portions 112 correspond to the fasteners at the two sets of mounting holes 121, which is suitable for conventional assembly conditions. In another possible embodiment, four clearance portions 112 are provided, and when the four clearance portions 112 are arranged symmetrically at four corners along the axial direction of the bearing portion 110, four sets of fasteners can be cleared at the same time, which is suitable for high-compact assembly conditions with multi-point locking and many surrounding obstacles.

[0186] In some embodiments, the outer contour, opening depth, and opening area of ​​each clearance portion 112 can be kept consistent. In other embodiments, each clearance portion 112 can also be set to different structural dimensions according to the actual arrangement of surrounding components. This application does not impose too many restrictions on the specific structural form of a single clearance portion 112.

[0187] It should be understood that during the motor assembly process, after the fasteners on both sides of the bearing portion 110 are tightened, the protruding ends of the fasteners can extend into the corresponding clearance portions 112. The clearance portions 112, which are symmetrically arranged along the axial direction, ensure that the assembly interference allowance on both sides of the motor is basically the same, reducing the possibility of collisions and friction between the fasteners and surrounding pipes, frames, and other components. Through the above-mentioned design, the convenience of motor assembly operations can be improved, the force on the motor can be balanced after tightening, and the assembly stability of the motor during long-term operation can be improved.

[0188] This embodiment also provides a water purification device, which includes a main body and the aforementioned motor, with the motor mounting part 120 connected to the main body.

[0189] The main body of the water purification device serves as the frame structure, supporting and securing the motor, pump, piping, and other functional components. By directly connecting the motor mounting section 120 to the main body, the motor achieves stable support within the water purification device and reliably positions itself with the pump, piping, and frame, thus meeting the assembly requirements of the entire unit within a limited space.

[0190] It should be understood that if the motor is indirectly fixed to the main body through an additional independent bracket, it will increase the number of assembly and connection structures, occupy more space inside the water purification device, and also increase the problem of stress concentration caused by vibration between different components.

[0191] Specifically, in some possible embodiments, the motor mounting part 120 is locked and fixed to the body by fasteners, which makes disassembly and assembly easy and facilitates the later maintenance and replacement of the motor; in other possible embodiments, the motor mounting part 120 can also be fixedly connected to the body by snap-fit, which can eliminate the use of fasteners and simplify the assembly process.

[0192] In some embodiments, the main body is provided with assembly points that correspond one-to-one with the positions of the mounting portion 120 and the mounting holes 121. In other embodiments, the main body may also have a larger installation area, and the mounting holes 121 on the upper part of the mounting portion 120 can be selected for fixing according to actual installation requirements. This application does not impose too many restrictions on the specific connection method between the motor and the main body.

[0193] Since the mounting section 120 and the support section 110 are integrally formed, there is no need for additional independent mounting brackets and matching fasteners. This reduces the assembly process of the motor and lowers the overall space occupied by the motor. Moreover, the integrated structure can also reduce the outward transmission of motor vibration, improve the connection stability between the support section 110 and the mounting section 120, and improve the waterproof performance of the motor. By limiting the range of the preset dimension W, constraints can be formed on the dimensional ratios among the stator assembly 200, the support section 110, and the mounting section 120, ensuring that the motor's mounting support conditions, the structural strength of the housing 100, and the overall dimensions of the motor are mutually compatible.

[0194] With the above-mentioned configuration, the motor can reduce its size to fit the narrow installation space inside the water purification device, simplify the assembly process, improve waterproof performance, ensure the overall structural stability of the housing 100, reduce the risk of installation loosening caused by vibration, and enable the motor to maintain good connection stability under continuous operation or frequent start-stop conditions, thereby improving the reliability of the entire water purification device.

[0195] The embodiments or implementation methods in this application are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0196] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0197] In the description of this application, it should be understood that the terms “comprising” and “having” as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, display structure, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may include other steps or units that are not expressly listed or that are inherent to such process, method, product, or device.

[0198] The term "and / or" used in this application is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0199] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0200] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electric motor, characterized in that, include: The housing (100) includes a support portion (110) and a mounting portion (120). The mounting portion (120) is disposed on the outer peripheral wall of the support portion (110) and is integrally formed with the support portion (110). The support portion (110) has a receiving cavity (111) which extends along the axial direction of the support portion (110). The stator assembly (200) is arranged in a ring within the accommodating cavity (111) and is coaxially arranged with the bearing portion (110); The preset size of the motor is W, where W = (D1 + H2) / (L1 + H1), and the value of W ranges from 0.3 to 2.

5. Wherein, the diameter of the stator assembly (200) along the radial direction of the support portion (110) is D1, the length of the support portion (110) along its own axial direction is L1, the thickness of the mounting portion (120) is H1, and the distance between the outer peripheral wall of the stator assembly (200) and the outer peripheral wall of the support portion (110) along the radial direction of the support portion (110) is H2.

2. The motor according to claim 1, characterized in that, The material of the housing (100) includes one of unsaturated polyester molding compound, polyamide, polybutylene terephthalate or polypropylene.

3. The motor according to claim 1, characterized in that, The value range of D1 is 40mm-90mm, the value range of L1 is 30mm-100mm, the value range of H1 is 2mm-50mm, and the value range of H2 is 1mm-5mm.

4. The motor according to claim 1, characterized in that, The axial direction of the bearing part (110) is parallel to the length direction of the mounting part (120).

5. The motor according to claim 1, characterized in that, The mounting portion (120) is provided in at least two, and the at least two mounting portions (120) are arranged symmetrically along the axial direction of the bearing portion (110).

6. The motor according to any one of claims 1-5, characterized in that, The mounting part (120) is provided with a through mounting hole (121), and the through direction of the mounting hole (121) is set at an angle to the axial direction of the bearing part (110).

7. The motor according to claim 6, characterized in that, The mounting holes (121) are provided in multiple ways, and the multiple mounting holes (121) are arranged at intervals.

8. The motor according to claim 7, characterized in that, The plurality of mounting holes (121) are arranged along a preset path, which is one of L-shaped, X-shaped or Z-shaped.

9. The motor according to claim 6, characterized in that, The shape of the mounting hole (121) includes at least one of U-shape, semi-circle, circle, ellipse or polygon.

10. A water purification device, characterized in that, It includes a body and a motor as described in any one of claims 1-9, wherein the mounting part (120) of the motor is connected to the body.

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