Electric machine and household appliance

Abstract

The utility model provides a kind of motor and household appliance, it is related to the technical field of household appliance, motor includes motor body and mounting bracket, the periphery of the end of motor body is provided with two installation parts;Mounting bracket includes two mounting feet and the connecting part of the two mounting feet being connected integrally, each mounting foot is connected with the corresponding installation part by bolt;Wherein, the first mounting hole is provided in the axial direction of the motor body, the first mounting hole is used for the matching part of furniture electric appliance to be set, the hole depth of the first mounting hole is L1, the L1 satisfies: 4mm≤L1≤10mm;The mounting bracket in the embodiment of the application is through the structure design of integrally formed and the hole depth size optimization at first mounting hole, to improve the fatigue resistance and service life of mounting bracket.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a motor and a household appliance. Background Technology

[0002] In drum washing machines, the drive motor is fixed to the outer drum by a separately manufactured front mounting foot. This split structure design is intended to avoid injection molding defects that may occur when the motor and mounting foot are molded as a single piece.

[0003] However, this structure also introduces new mechanical problems: when the motor drives the rollers via a belt, the belt tension reacts on the motor pulley and transmits this force to the connected front mounting feet. Since the base of the mounting feet is fixed to the outer cylinder by bolt holes, these holes essentially form a pivot point. Under this stress, the mounting feet tend to deform outwards around these bolt holes, making them prone to fatigue damage. Utility Model Content

[0004] The main purpose of this utility model is to propose a motor and household appliance that aims to solve the problem that fatigue damage is easily caused by the separate assembly of the front mounting feet of the motor in related technologies.

[0005] To achieve the above objectives, this utility model proposes an electric motor, which includes: The motor body has two mounting parts at its periphery; and The mounting bracket includes two mounting feet and a connecting part that connects the two mounting feet together, and each mounting foot is connected to the corresponding mounting part by bolts; The mounting foot has a first mounting hole that extends through the motor body along its axial direction. The first mounting hole is used for the mating parts of furniture appliances to pass through. The depth of the first mounting hole is L1, and L1 satisfies the following condition: 4mm≤L1≤10mm.

[0006] In one embodiment, the end of the motor body is provided with an assembly notch, and the two mounting portions are located within the assembly notch; At least a portion of each of the two mounting feet is located within the mounting notch.

[0007] In one embodiment, the mounting bracket further includes: A boss is provided on one side of the connecting part along the axial direction of the motor body and located in the middle region of the connecting part. The dimension of the boss along the axial direction of the motor body is L2, and L2 satisfies: 1mm ≤ L2 ≤ 3mm; and / or The middle region of the connecting part is provided with a protrusion that extends laterally out of the connecting part.

[0008] In one embodiment, the mounting bracket further includes at least one reinforcing rib, which is disposed at the connection between the connecting portion and the mounting foot and connects the connecting portion and the mounting foot; axially along the motor body, the reinforcing rib has a dimension of L3, and the mounting foot has a dimension of L4, wherein L3 and L4 satisfy: 2mm ≤ L3 ≤ L4; and / or At least one of the connecting portion and the mounting foot is provided with a first countersunk in the axial direction of the motor body.

[0009] In one embodiment, the mounting foot includes: The mounting script body is connected to the corresponding mounting part by bolts and is at least partially located within the assembly notch; and A stop portion is provided on one side of the installation script body and protrudes from the installation script body; The motor body has a first stop surface formed around the periphery of the assembly notch, and the stop part abuts against the first stop surface.

[0010] In one embodiment, the stop portion has a second stop surface that abuts against the first stop surface, and the second stop surface extends along the first stop surface by a dimension L5, wherein L5 satisfies: 1mm≤L5≤5mm.

[0011] In one embodiment, the stop portion has a second stop surface that abuts against the first stop surface; Along the axial direction of the motor body, the dimension of the second stop surface is L6; wherein, L6 satisfies: 3mm≤L6≤10mm.

[0012] In one embodiment, a second mounting hole is further provided through the mounting foot along the axial direction of the motor body, the second mounting hole being used for the bolt to pass through; The depth of the second mounting hole is L7, and L7 satisfies: 3mm≤L7≤7mm.

[0013] In one embodiment, a second recessed platform is further provided on the side of the mounting foot near the corresponding mounting part, the second mounting hole is provided at the bottom of the second recessed platform and communicates with the second recessed platform, the mounting part includes a mounting boss, at least a portion of the mounting boss is embedded in the second recessed platform; The mounting feet also include: A limiting rib is provided at the periphery of the second recessed platform or within the second recessed platform and connected to the mounting foot. The limiting rib abuts against the outer surface of the mounting boss to restrict the movement of the mounting foot relative to the mounting boss. This utility model also proposes a household appliance, which includes the aforementioned motor.

[0014] In the technical solution of this application, the mounting bracket integrally forms two mounting feet through a connecting part, so that when a single mounting foot is subjected to force and has a tendency to deform around the bolt, the connecting part can form an effective tensile support between the two, thereby enhancing the overall structural strength and dispersing local bending stress. Secondly, the hole depth L1 of the first mounting hole on the mounting foot is limited to the range of 4mm to 10mm, thereby improving the structural lightness at this point and preventing the risk of stress concentration or cracking caused by improper hole depth setting. That is, the mounting bracket in the embodiment of this application improves the fatigue resistance and service life of the mounting bracket through the integrally formed structural design and the optimized hole depth size at the first mounting hole. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the assembly structure between the motor and the outer cylinder of this utility model; Figure 2 An exploded structural diagram of an embodiment of the household appliance provided by this utility model; Figure 3 A schematic diagram of an embodiment of the mounting bracket provided by this utility model; Figure 4 This is a schematic diagram of the assembly structure of the motor and the outer cylinder in another embodiment provided by this utility model. Figure 5 This is a schematic diagram of another embodiment of the mounting bracket of this utility model; Figure 6 This is a schematic diagram of another embodiment of the mounting bracket of this utility model; Figure 7 This is a schematic diagram of another embodiment of the mounting bracket of this utility model; Figure 8 This is a schematic diagram of another embodiment of the mounting bracket of this utility model; Figure 9 This is a schematic diagram of another embodiment of the mounting bracket of this utility model; Figure 10 This is a schematic diagram of another embodiment of the mounting bracket of this utility model; Figure 11This is a schematic diagram of another embodiment of the mounting bracket of this utility model; Figure 12 This is a schematic diagram of another embodiment of the mounting bracket of this utility model; Figure 13 This is a schematic diagram of another embodiment of the mounting bracket of this utility model; Figure 14 for Figure 4 Enlarged view of point A in the middle; Figure 15 A schematic diagram of another embodiment of the mounting bracket of the utility model; Figure 16 for Figure 15 Enlarged diagram of point B in the middle.

[0017] Explanation of icon numbers: 1000. Motor; 1. Motor body; 2. Mounting part; 3. Mounting bracket; 31. Mounting foot; 311. Mounting foot body; 312. Stop part; 32. Connecting part; 4. Bolt; 5. First mounting hole; 6. Assembly notch; 7. Boss; 8. Reinforcing rib; 9. First countersunk platform; 10. First stop surface; 11. Second stop surface; 12. Second mounting hole; 13. Second countersunk platform; 14. Limiting rib; 15. Outer cylinder; 16. Mating part; 17. Positioning part; 18. Rear mounting foot; 19. Clearance space; 20. Elastic vibration damping element.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] In drum washing machines, the drive motor is fixed to the outer drum by a separately manufactured front mounting foot. This split structure design is intended to avoid injection molding defects that may occur when the motor and mounting foot are molded as a single piece.

[0023] However, this structure also introduces new mechanical problems: when the motor drives the rollers via a belt, the belt tension reacts on the motor pulley and transmits this force to the connected front mounting feet. Since the base of the mounting feet is fixed to the outer cylinder by bolt holes, these holes essentially form a pivot point. Under this stress, the mounting feet tend to deform outwards around these bolt holes, making them prone to fatigue damage.

[0024] In view of this, this application proposes an electric motor, Figures 1 to 16 These are some embodiments of this application.

[0025] Please see Figures 1 to 3 In some embodiments of this application, the motor 1000 includes a motor body 1 and a mounting bracket 3. Two mounting portions 2 are provided at the periphery of the end of the motor body 1. The mounting bracket 3 includes two mounting feet 31 and a connecting portion 32 that connects the two mounting feet 31 together. Each mounting foot 31 is connected to the corresponding mounting portion 2 by a bolt 4. The mounting bracket 3 is the front mounting foot in the related art.

[0026] In some embodiments of this application, the mounting foot 31 has a first mounting hole 5 extending through the motor body 1 along its axial direction. The first mounting hole 5 is used for the mating part 16 of the furniture appliance to pass through. The depth of the first mounting hole 5 is L1, and L1 satisfies: 4mm ≤ L1 ≤ 10mm. Setting the depth of the first mounting hole 5 within the range of 4mm to 10mm ensures that the mounting foot 31 has sufficient structural strength at the first mounting hole 5 and is not prone to cracking.

[0027] If L1 is less than 4mm, the structural strength of the mounting foot 31 at the location of the first mounting hole 5 is insufficient due to the small hole depth of the first mounting hole 5. This makes the mounting foot 31 prone to fatigue cracking at the location of the first mounting hole 5 during long-term use.

[0028] If L1 is greater than 10mm, the thickness of the mounting foot 31 at the location where the first mounting hole 5 is provided is too thick. Although this ensures the structural strength of the mounting foot 31 at the first mounting hole 5, it increases the material cost of the mounting foot 31.

[0029] Furthermore, since the two mounting feet 31 are connected by the connecting part 32 and integrally formed, when the mounting feet 31 are subjected to force and tend to deform in the direction of rotation around the bolt 4, the connecting part 32 can provide mutual tensile support for the two mounting feet 31, thereby significantly increasing the overall structural strength of the mounting bracket 3. This integrated design can effectively disperse the bending stress concentrated on the mounting feet 31, thereby improving the fatigue resistance of the mounting bracket 3 and extending its service life.

[0030] In summary, in the technical solution of this application, the mounting bracket 3 integrally forms two mounting feet 31 through a connecting part 32, so that when a single mounting foot 31 is subjected to force and has a tendency to deform around the bolt 4, the connecting part 32 can form an effective tensile support between the two, thereby enhancing the overall structural strength and dispersing local bending stress. Secondly, the hole depth L1 of the first mounting hole 5 on the mounting foot 31 is limited to the range of 4mm to 10mm, thereby improving the structural strength at this point and preventing stress concentration or cracking risks caused by improper hole depth setting. That is, the mounting bracket 3 in this embodiment improves the fatigue resistance and service life of the mounting bracket 3 through the integrally formed structural design and the optimized hole depth of the first mounting hole 5.

[0031] In the above embodiments, the value of L1 can be 4mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm, 5mm, 5.2mm, 5.4mm, 5.6mm, 5.8mm, 6mm, 6.2mm, 6.4mm, 6.6mm, 6.8mm, 7mm, 7.2mm, 7.4mm, 7.6mm, 7.8mm, 8mm, 8.2mm, 8.4mm, 8.6mm, 8.8mm, 9mm, 9.2mm, 9.4mm, 9.6mm, 9.8mm, or 10mm. Of course, the value of L1 is not limited to the listed proportional values; other unlisted proportional values ​​within this range are also applicable.

[0032] It should be noted that since the mounting bracket 3 is injection molded, if L1 is greater than 10mm, when the mounting bracket 3 cools, there may be internal stress caused by stress concentration and uneven cooling contraction in the area of ​​the mounting bracket 3 corresponding to the first mounting hole 5. This may cause the mounting bracket 3 to crack in the area corresponding to the first mounting hole 5 during long-term use.

[0033] by Figure 1 and Figure 4 To illustrate further, when the pulley on the motor 1000 is subjected to force, the force direction on the pulley is upward, and the two mounting feet 31 will bear rotational torques in opposite directions. Specifically, the left mounting foot 31 is subjected to a counterclockwise torque acting outward with the bolt 4 as the center; while the right mounting foot 31 is subjected to a clockwise torque acting outward with the bolt 4 as the center. Therefore, the structural design of the connecting part 32 can provide effective support for the two mounting feet 31, thereby improving the overall structural strength of the mounting bracket 3.

[0034] In this application embodiment, the connection method between the motor 1000 and the outer drum 15 of the washing machine is not limited to using the mounting bracket 3; in some embodiments, a rear mounting foot 18 may be further added, which, in cooperation with the mounting bracket 3, can jointly improve the fixing reliability of the motor 1000 on the outer drum 15.

[0035] Specifically, the bolt 4 can be sequentially inserted through the rear mounting foot 18, the motor body 1, and the mounting bracket 3 and connected with the nut to achieve a fixed connection between the mounting bracket 3 and the rear mounting foot 18 and the motor body 1.

[0036] In some embodiments of this application, the end of the motor body 1 is provided with an assembly notch 6, and at least a portion of the two mounting feet 31 are located within the assembly notch 6; wherein, the assembly notch 6 can provide a preliminary positioning function for the installation of the mounting bracket 3, so as to facilitate subsequent installation by the operator or operating tool.

[0037] In one embodiment, when mounting foot 31 is fitted to mounting notch 6, the contour of mounting notch 6 can match the outer contour of mounting foot 31 to achieve a preliminary positioning function.

[0038] The assembly notch 6 is set at the end of the motor body 1 so that after the mounting bracket 3 is assembled onto the motor body 1, part of the mounting bracket 3 can protrude radially from the motor body 1 and be assembled with the outer cylinder 15.

[0039] In one embodiment of this application, an assembly notch 6 can be provided at the end of the motor body 1, and both mounting feet 31 are assembled at the same assembly notch 6.

[0040] In some other embodiments of this application, the end of the motor body 1 is provided with two mounting notches 6, and two mounting feet 31 are respectively mounted on the two mounting notches 6.

[0041] In one embodiment of this application, the two mounting portions 2 are located within the assembly notch 6 to respectively fix the portion of the mounting foot 31 located within the assembly notch 6.

[0042] Furthermore, when the mounting foot 31 is assembled at the mounting notch 6, the connecting part 32 may be located outside the mounting notch 6 or at least partially located inside the mounting notch 6; no limitation is made here.

[0043] Please see Figures 5 to 6 In some embodiments of this application, the mounting bracket 3 further includes a boss 7, which is disposed on one side of the connecting part 32 in the axial direction of the motor body 1 and located in the middle region of the connecting part 32; wherein, the provision of the boss 7 can locally enhance the rigidity of the connecting part 32 to prevent fatigue damage to the connecting part 32 during long-term use.

[0044] Of course, the boss 7 is not limited to the middle area of ​​the connecting part 32; it can be set in other locations besides the middle area.

[0045] In some embodiments of this application, the connecting portion 32 is provided with bosses 7 on both sides of the motor body 1 in the axial direction.

[0046] Specifically, in some embodiments of this application, the boss 7 is disposed on the side of the connecting portion 32 away from the motor body 1 in the axial direction, so as to avoid the structural arrangement of the boss 7 interfering with the assembly between the mounting bracket 3 and the motor body 1.

[0047] In some embodiments of this application, the dimension of the boss 7 in the axial direction of the motor body 1 is L2, and the L2 satisfies: 1mm≤L2≤3mm; by setting the dimension L2 of the boss 7 to satisfy the range of 1mm to 3mm, the rigidity of the connecting part 32 is improved while avoiding the boss 7 being too thick, which would increase the cost of manufacturing the boss 7.

[0048] If L2 is less than 1mm, the structure of the boss 7 may not be sufficient to provide the intended reinforcement to the connector 32.

[0049] If L2 is greater than 3mm, the material consumption of boss 7 will increase, resulting in an increase in the cost of manufacturing boss 7.

[0050] In the above embodiments, the value of L2 can be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, or 3mm. Of course, the value of L2 is not limited to the listed proportional values; other unlisted proportional values ​​within this range are also applicable.

[0051] Please see Figure 7 In some embodiments of this application, the middle region of the connecting portion 32 is provided with a protrusion that protrudes laterally from the connecting portion 32; this is provided to locally enhance the rigidity of the connecting portion 32 and prevent fatigue damage to the connecting portion 32 during long-term use.

[0052] Of course, the location of the protrusion is not limited to the middle area of ​​the connecting part 32; it can be set at other locations besides the middle area.

[0053] In some embodiments of this application, the protrusion and the connecting portion 32 are integrally injection molded.

[0054] Please see Figure 8 In some embodiments of this application, the middle region of the connecting portion 32 is provided with a boss 7 and a protrusion to locally enhance the rigidity of the connecting portion 32 and prevent fatigue damage to the connecting portion 32 during long-term use.

[0055] Please see Figures 10 to 12 In some embodiments of this application, the mounting bracket 3 further includes at least one reinforcing rib 8, which is disposed at the connection between the connecting part 32 and the mounting foot 31 and connects the connecting part 32 and the mounting foot 31; wherein, the structural arrangement of the reinforcing rib 8 can strengthen the weak connection node between the connecting part 32 and the mounting foot 31, effectively disperse stress, thereby significantly improving the overall structural rigidity and fatigue resistance of the mounting bracket 3.

[0056] In some embodiments of this application, the size of the reinforcing rib 8 is L3 and the size of the mounting foot 31 is L4 in the axial direction of the motor body 1. The L3 and L4 satisfy: 2mm≤L3≤L4. By setting the size L3 of the reinforcing rib 8 to satisfy the range of 2mm to L4, it is ensured that the reinforcing rib 8 can provide effective structural reinforcement, while avoiding material waste and potential structural interference of the reinforcing rib 8.

[0057] If L3 is less than 2mm, the stiffener 8 may be insufficiently rigid, unable to effectively disperse stress, and its reinforcement effect may be weak.

[0058] If L3 is greater than L4, there may be interference between the reinforcing rib 8 and the surrounding components, which will increase unnecessary material costs and injection molding difficulty.

[0059] Please see Figure 10 In one embodiment of this application, a reinforcing rib 8 is provided to connect two mounting feet 31 and a connecting part 32.

[0060] Please see Figure 11 In one embodiment of this application, two reinforcing ribs 8 are provided, and the two reinforcing ribs 8 are respectively provided at the connection between the two mounting feet 31 and the connecting part 32.

[0061] Please see Figures 11 to 13 In some embodiments of this application, at least one of the connecting part 32 and the mounting foot 31 is provided with a first recess 9 in the axial direction of the motor body 1; wherein, the structure of the first recess 9 reduces the local wall thickness of the mounting bracket 3, so that the mounting bracket 3 can be uniformly and quickly cooled and solidified during the injection molding process, thereby effectively improving the molding quality.

[0062] Please see Figures 11 to 12 In some embodiments of this application, the connecting part 32 has multiple first recesses 9 on both sides of the motor body 1 in the axial direction, so as to reduce the local wall thickness of the mounting bracket 3 and improve the quality of the mounting bracket 3 after injection molding; at the same time, reinforcing ribs 8 are provided at the connection between the two mounting feet 31 and the connecting part 32 to strengthen the weak connection nodes between the connecting part 32 and the mounting feet 31, which can effectively disperse stress and thus significantly improve the overall structural rigidity and fatigue resistance of the mounting bracket 3.

[0063] Please see Figures 14 to 16 In some embodiments of this application, the mounting foot 31 includes a mounting foot body 311 and a stop portion 312. The mounting foot body 311 is connected to the corresponding mounting portion 2 by bolts 4 and is at least partially located within the assembly notch 6. The stop portion 312 is disposed on one side of the mounting foot body 311 and protrudes from the mounting foot body 311. The motor body 1 forms a first stop surface 10 around the periphery of the assembly notch 6, and the stop portion 312 abuts against the first stop surface 10.

[0064] In the above embodiment, when the mounting foot 31 is subjected to force and has a tendency to deform, the stop part 312 will abut against the first stop surface 10 on the motor body 1 and provide support. Thus, based on the original connection point set by a single bolt 4, an additional support point is added, which can effectively disperse the bending stress concentrated in the middle of the mounting foot body 311, thereby reducing the peak stress in the middle region of the mounting foot 31 and improving the fatigue resistance of the mounting bracket 3 on the motor 1000.

[0065] In some embodiments of this application, the stop portion 312 has a second stop surface 11 that abuts against the first stop surface 10; the contact area between the stop portion 312 and the outer surface of the motor body 1 is increased by the contact between the first stop surface 10 and the second stop surface 11, thereby improving the support strength of the stop portion 312.

[0066] Wherein, the second stop surface 11 extends along the first stop surface 10 by a dimension L5, and L5 satisfies: 1mm≤L5≤5mm.

[0067] If L5 is greater than 5mm, the stop part 312 is prone to interference with other structures on the motor body 1, making it difficult or impossible to install the mounting bracket 3 onto the motor body 1 due to the structural design of the stop part 312; if L5 is less than 1mm, the contact area between the stop part 312 and the motor body 1 is too small, resulting in insufficient support strength of the stop part 312.

[0068] The value of L5 can be 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm, 4mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm, or 5mm. Of course, the value of L5 is not limited to the listed proportions; other unlisted proportions within this range also apply.

[0069] In some embodiments of this application, the stop portion 312 has a second stop surface 11 that abuts against the first stop surface 10; the contact area between the stop portion 312 and the outer surface of the motor body 1 is increased by the contact between the first stop surface 10 and the second stop surface 11, thereby improving the support strength of the stop portion 312.

[0070] Wherein, in the axial direction of the motor body 1, the dimension of the second stop surface 11 is L6; wherein, L6 satisfies: 3mm≤L6≤10mm.

[0071] If L6 is greater than 10mm, the stop part 312 is prone to interfering with other structures on the motor body 1 in the axial direction, making it difficult or impossible to install the mounting bracket 3 onto the motor body 1 due to the structural design of the stop part 312; if L6 is less than 3mm, the contact area between the stop part 312 and the motor body 1 is too small, resulting in insufficient support strength of the stop part 312.

[0072] The value of L6 can be 3mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm, 4mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm, 5mm, 5.2mm, 5.4mm, 5.6mm, 5.8mm, 6mm, 6.2mm, 6.4mm, 6.6mm, 6.8mm, 7mm, 7.2mm, 7.4mm, 7.6mm, 7.8mm, 8mm, 8.2mm, 8.4mm, 8.6mm, 8.8mm, 9mm, 9.2mm, 9.4mm, 9.6mm, 9.8mm, or 10mm. Of course, the value of L6 is not limited to the listed proportions; other unlisted proportions within this range also apply.

[0073] In some embodiments of this application, a second mounting hole 12 is provided through the mounting foot 31 along the axial direction of the motor body 1. The second mounting hole 12 is used for the bolt 4 to pass through. That is, in this embodiment, the mounting bracket 3 and the motor body 1 are fixed by the bolt 4 passing through the second mounting hole 12 and the motor body 1.

[0074] The depth of the second mounting hole 12 is L7, and L7 satisfies: 3mm≤L7≤7mm.

[0075] If L7 is less than 3mm, the structural strength of the mounting foot 311 at the location of the second mounting hole 12 is insufficient due to the small hole depth of the second mounting hole 12. This makes the mounting bracket 3 prone to fatigue cracking at the location corresponding to the second mounting hole 12 during long-term use.

[0076] If L7 is greater than 7mm, the thickness of the mounting foot 311 at the location of the second mounting hole 12 is too thick. Although this ensures the structural strength of the mounting foot 311 at the second mounting hole 12, it increases the material cost of the mounting bracket 3.

[0077] In the above embodiments, the value of L7 can be 3mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm, 4mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm, 5mm, 5.2mm, 5.4mm, 5.6mm, 5.8mm, 6mm, 6.2mm, 6.4mm, 6.6mm, 6.8mm, or 7mm. Of course, the value of L3 is not limited to the listed proportional values; other unlisted proportional values ​​within this range are also applicable.

[0078] It should be noted that since the mounting bracket 3 is injection molded, if L7 is greater than 10mm, during the cooling of the mounting bracket 3, there may be internal stress caused by stress concentration and uneven cooling contraction in the area of ​​the mounting bracket 3 corresponding to the second mounting hole 12. This may cause the mounting bracket 3 to crack in the area corresponding to the second mounting hole 12 during long-term use.

[0079] In some embodiments of this application, a second recessed platform 13 is provided on the side of the mounting foot 31 near the corresponding mounting part 2. The second mounting hole 12 is provided at the bottom of the second recessed platform 13 and communicates with the second recessed platform 13. The mounting part 2 includes a mounting boss, at least a portion of which is embedded in the recessed platform. Through the adaptation of the second recessed platform 13 and the mounting boss, the mounting bracket 3 can be coarsely positioned on the motor body 1 so that the bolt 4 can pass through the second mounting hole 12.

[0080] In some specific embodiments of this application, the mounting bracket 3 can be limited to a specific mounting position on the motor body 1 by the limiting between the side wall of the mounting boss and the assembly notch 6, so that the operator or operating tool can pass the bolt 4 through the second mounting hole 12, thereby realizing the fixation between the mounting bracket 3 and the motor body 1.

[0081] In some embodiments of this application, a positioning part 17 is provided on the side of the mounting bracket 3 away from the motor body 1 along the axial direction of the motor body 1. The positioning part 17 can position the mounting bracket 3 on the mounting fixture to realize the automated assembly of the mounting bracket 3.

[0082] Of course, the positioning part 17 can also be used as part of the mounting tool to pick up the mounting bracket 3.

[0083] In one specific embodiment of this application, the positioning part 17 is arranged in a ring and surrounds the second mounting hole 12 to facilitate the positioning of the second mounting hole 12 on the mounting bracket 3.

[0084] In some embodiments of this application, the mounting foot further includes a limiting rib 14, which is disposed at the periphery of the second recessed platform 13 or within the second recessed platform and connected to the mounting foot 31. The limiting rib 14 abuts against the outer surface of the mounting boss to restrict the movement of the mounting foot 31 relative to the mounting boss. The limiting rib 14 further restricts the movement of the mounting foot 31 relative to the mounting boss to facilitate the insertion of the bolt 4.

[0085] Meanwhile, the limiting rib 14 can also serve as a reinforcing rib to improve the structural strength of the mounting foot 31 at the assembly position with the mounting boss.

[0086] The form of the limiting rib 14 is not limited, as long as it can limit the movement of the mounting foot 31 relative to the mounting boss.

[0087] In one specific embodiment of this application, four limiting ribs 14 are provided, and the four limiting ribs are spaced apart so as to contact different positions of the mounting boss, thereby restricting the movement of the mounting foot 31 relative to the mounting boss.

[0088] In addition, the structural design of the mounting boss and the outer contour design of the second recess 13 can also limit the movement of the mounting foot 31 relative to the mounting boss; for example, the shape of the mounting boss can limit the rotation of the mounting foot 31 when it rotates around the bolt 4.

[0089] Please see Figures 7 to 8 In some embodiments of this application, a clearance space 19 is also formed on the mounting bracket 3. The clearance space 19 facilitates the operator or operating tool to lock the electrical control box mounting nut when installing the electrical control box on the motor body 1.

[0090] In some embodiments of this application, the mounting foot 31 is also provided with an elastic damping element 20 in the first mounting hole 5, and the mating part 16 on the household appliance can pass through the elastic damping element 20 and be connected to the mounting bracket 3 to play a role in damping vibration.

[0091] In some embodiments of this application, the elastic damping element 20 includes a rubber ring.

[0092] In some embodiments of this application, the mating part 16 on the household appliance is mounted on the outer cylinder 15.

[0093] This application also proposes a household appliance, including a motor 1000, which is as described above. Since this household appliance adopts all the technical solutions of all the above embodiments, it has at least the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0094] In some embodiments of this application, the household appliance includes a washing machine.

[0095] In one specific embodiment of this application, the washing machine is a drum-type washing machine.

[0096] Of course, the household appliance in the embodiments of this application can also be a shoe washing machine, etc.

[0097] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An electric motor, characterized in that, include: The motor body has two mounting parts at its periphery; and The mounting bracket includes two mounting feet and a connecting part that connects the two mounting feet together, and each mounting foot is connected to the corresponding mounting part by bolts; The mounting foot has a first mounting hole that extends through the motor body along its axial direction. The first mounting hole is used for the mating parts of furniture appliances to pass through. The depth of the first mounting hole is L1, and L1 satisfies the following condition: 4mm≤L1≤10mm.

2. The motor as described in claim 1, characterized in that, The motor body has an assembly notch at its end, and the two mounting parts are located within the assembly notch. At least a portion of each of the two mounting feet is located within the mounting notch.

3. The motor as described in claim 2, characterized in that, The mounting bracket also includes: A boss is provided on one side of the connecting part along the axial direction of the motor body and located in the middle region of the connecting part. The dimension of the boss along the axial direction of the motor body is L2, and L2 satisfies: 1mm ≤ L2 ≤ 3mm; and / or The middle region of the connecting part is provided with a protrusion that extends laterally out of the connecting part.

4. The motor as described in claim 2, characterized in that, The mounting bracket further includes at least one reinforcing rib, which is disposed at the connection between the connecting part and the mounting foot and connects the connecting part and the mounting foot; axially along the motor body, the reinforcing rib has a dimension of L3, and the mounting foot has a dimension of L4, wherein L3 and L4 satisfy: 2mm ≤ L3 ≤ L4; and / or At least one of the connecting portion and the mounting foot is provided with a first countersunk in the axial direction of the motor body.

5. The motor as described in claim 2, characterized in that, The mounting feet include: The mounting script body is connected to the corresponding mounting part by bolts and is at least partially located within the assembly notch; and A stop portion is provided on one side of the installation script body and protrudes from the installation script body; The motor body has a first stop surface formed around the periphery of the assembly notch, and the stop part abuts against the first stop surface.

6. The motor as described in claim 5, characterized in that, The stop portion has a second stop surface that abuts against the first stop surface, and the second stop surface extends along the first stop surface by a dimension L5, wherein L5 satisfies: 1mm≤L5≤5mm.

7. The motor as described in claim 5, characterized in that, The stop portion has a second stop surface that abuts against the first stop surface; Along the axial direction of the motor body, the dimension of the second stop surface is L6; wherein, L6 satisfies: 3mm≤L6≤10mm.

8. The motor as described in any one of claims 1 to 7, characterized in that, Along the axial direction of the motor body, the mounting foot is also provided with a second mounting hole for the bolt to pass through; The depth of the second mounting hole is L7, and L7 satisfies: 3mm≤L7≤7mm.

9. The motor as described in claim 8, characterized in that, A second recessed platform is also provided on the side of the mounting foot near the corresponding mounting part. The second mounting hole is provided at the bottom of the second recessed platform and communicates with the second recessed platform. The mounting part includes a mounting boss, and at least a portion of the mounting boss is embedded in the second recessed platform. The mounting feet also include: A limiting rib is provided at the periphery of the second recessed platform or inside the second recessed platform and connected to the mounting foot. The limiting rib abuts against the outer surface of the mounting boss to restrict the movement of the mounting foot relative to the mounting boss.

10. A household appliance, characterized in that, Including the motor as described in any one of claims 1 to 9.

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