Motors and refrigeration equipment

Abstract

This utility model discloses an electric motor and a refrigeration device, relating to the field of electric motor technology. The electric motor includes a housing and a vibration damping structure. The housing has two axially opposite first end faces, and at least one of the first end faces has a mounting protrusion. The mounting protrusion has a supporting surface, and the motor shaft passes through at least one of the mounting protrusions. The vibration damping structure is at least located on the supporting surface and is integrally formed with the mounting protrusion. The technical solution provided by this utility model improves the production efficiency of the electric motor by integrally forming the vibration damping structure with the mounting protrusion.

Description

Technical Field

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

[0002] In the motor manufacturing process, vibration damping pads made of silicone rubber are usually installed on the motor to achieve vibration reduction and noise reduction. However, since silicone rubber material requires a long time to fully cure, it can only be used as an independent part and then fitted onto the rear end cover and motor housing in the subsequent final assembly process. This not only increases the complexity of motor assembly but also reduces the overall production efficiency of the motor. Utility Model Content

[0003] The main purpose of this utility model is to propose an electric motor and a refrigeration device, which aims to improve the production efficiency of the electric motor.

[0004] To achieve the above objectives, the motor proposed in this utility model includes:

[0005] A housing having two axially opposed first end faces, at least one of the first end faces having a mounting protrusion having a supporting surface, and the motor shaft of the motor passing through at least one of the mounting protrusions; and

[0006] The vibration damping structure is provided at least on the support surface and is integrally formed with the mounting protrusion.

[0007] In one embodiment, the support surface is formed on the peripheral sidewall of the mounting protrusion, and the vibration damping structure is an annular structure and is fitted to the support surface.

[0008] In one embodiment, the axial height H1 of the vibration damping structure is greater than or equal to the radial thickness D of the vibration damping structure.

[0009] In one embodiment, 5mm ≤ H1 ≤ 8mm.

[0010] In one embodiment, 3mm ≤ D ≤ 5mm.

[0011] In one embodiment, the outer end face of the vibration damping structure protrudes beyond the outer end face of the mounting protrusion in a direction away from the first end face.

[0012] In one embodiment, the height H2 of the vibration damping structure protruding axially from the mounting protrusion satisfies: 0.5mm ≤ H2 ≤ 1.5mm.

[0013] In one embodiment, the inner end face of the vibration damping structure is in contact with the first end face.

[0014] In one embodiment, the vibration damping structure is integrally formed onto the mounting protrusion using a plastic coating process.

[0015] In one embodiment, the vibration damping structure is configured as a thermoplastic elastomer material.

[0016] In one embodiment, the housing includes a main housing portion and an end cap connected to each other. The main housing portion has a mounting cavity and an opening communicating with the mounting cavity. The end cap is connected to the opening and has one mounting protrusion. The main housing portion has another mounting protrusion, and both mounting protrusions are provided with the vibration damping structure.

[0017] In one embodiment, one end of the motor shaft is connected to the interior of the mounting protrusion on the end cover, and the other end protrudes from the mounting protrusion on the main housing.

[0018] This utility model also proposes a refrigeration device, including the aforementioned compressor.

[0019] The technical solution of this utility model solves the problems of low efficiency and complex assembly caused by the need for separate vibration damping pads in subsequent processes in traditional structures by integrally molding the vibration damping structure with the mounting protrusion on the motor housing. This improves the motor assembly efficiency and thus increases the motor production efficiency. At the same time, it also helps to enhance the overall structural strength and vibration damping effect of the motor. Attached Figure Description

[0020] 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.

[0021] Figure 1 A schematic diagram of the structure of a motor in front of the vibration damping structure provided by this utility model;

[0022] Figure 2 for Figure 1 A structural schematic diagram of the motor from another perspective;

[0023] Figure 3 A schematic diagram of a subsequent embodiment of the main shell portion with vibration damping structure provided by this utility model;

[0024] Figure 4 A schematic diagram of a later embodiment of the end cap mounting vibration damping structure provided by this utility model;

[0025] Figure 5A side view of an embodiment of the motor provided by this utility model;

[0026] Figure 6 for Figure 5 A cross-sectional view of the motor along line MM;

[0027] Figure 7 for Figure 6 A magnified view of a portion of point A in the middle.

[0028] Explanation of icon numbers:

[0029] 100, Housing; 200, Motor Shaft; 300, Vibration Damping Structure; 110, First End Face; 120, Main Housing Part; 130, End Cover; 140, Mounting Protrusion; 141, Support Surface.

[0030] 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

[0031] 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 protection scope of the present utility model.

[0032] 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.

[0033] 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.

[0034] This utility model proposes an electric motor.

[0035] Please see Figures 1 to 4 In one embodiment of the present invention, the motor includes a housing 100 and a vibration damping structure 300. The housing 100 has two first end faces 110 that are axially opposite each other. At least one of the first end faces 110 is provided with a mounting protrusion 140. The mounting protrusion 140 has a support surface 141. The motor shaft 200 of the motor passes through at least one of the mounting protrusions 140. The vibration damping structure 300 is provided at least on the support surface 141 and is integrally formed with the mounting protrusion 140.

[0036] Specifically, please refer to Figure 1 , Figure 2 and Figure 6 The housing 100 is used to house the stator, rotor, windings, and other components inside the motor. The housing 100 has two axially opposed first end faces 110. In the normal installation state of the motor, the two first end faces 110 usually correspond to the front and rear ends of the motor. Of course, in other installation states of the motor, the two first end faces 110 can also correspond to the upper and lower ends of the motor.

[0037] At least one first end face 110 is provided with a mounting protrusion 140, which is used to connect and fix with the mounting part of the refrigeration equipment (such as a mounting bracket, housing, etc.) to mount the motor. When only one first end face 110 is provided with a mounting protrusion 140, the motor shaft 200 passes through the mounting protrusion 140; when both first end faces 110 are provided with mounting protrusions 140, the motor shaft 200 may pass through only one mounting protrusion 140, or the two ends of the motor shaft 200 may pass through the two mounting protrusions 140 respectively. The mounting protrusion 140 extends outward from the housing 100 and forms a support surface 141. Depending on the installation state of the motor, the support surface 141 may be formed on the peripheral sidewall of the mounting protrusion 140 or on the axial end face of the mounting protrusion 140.

[0038] Please see Figure 3 , Figure 4 and Figure 6 The vibration damping structure 300 is at least provided on the support surface 141 of the mounting protrusion 140 and is integrally formed with the mounting protrusion 140 to reduce the vibration and noise generated during motor operation. The vibration damping structure 300 may be provided only on the support surface 141 of the mounting protrusion 140, or it may be provided on a surface other than the support surface 141 of the mounting protrusion 140, such as the peripheral sidewall and the axial end face of the mounting protrusion 140.

[0039] The vibration damping structure 300 is integrally formed with the mounting protrusion 140. That is, the vibration damping structure 300 is not a separate part from the housing 100, but is directly fixed to the support surface 141 by integrally forming with the mounting protrusion 140, thus forming an integrated structure. The vibration damping structure 300 and the mounting protrusion 140 can be integrally formed in various ways. For example, the vibration damping structure 300 can be coated onto the support surface 141 of the mounting protrusion 140 using a plastic coating process; it can also be injection molded integrally with the mounting protrusion 140; or it can be integrated with the housing 100 material using an embedded molding process.

[0040] The one-piece molded vibration damping structure 300 and the mounting protrusion 140 are more tightly connected, which can effectively prevent vibration transmission and improve the vibration reduction and noise reduction effect.

[0041] In traditional solutions, vibration damping pads need to be cured independently before being fitted between the motor rear end cover 130 and the housing 100 during the final assembly process. This results in long curing times and complex secondary assembly procedures. However, in this invention, the vibration damping structure 300 and the mounting protrusion 140 are integrally formed. The vibration damping structure 300 can be completed during the manufacturing process of the housing 100. The vibration damping structure 300 eliminates the need for additional curing time or subsequent assembly steps with the mounting protrusion 140, directly shortening the motor's production cycle, reducing manual operation and assembly time, thereby reducing the complexity of the final assembly process and improving motor production efficiency.

[0042] Furthermore, in traditional solutions, independent vibration damping pads are prone to loosening, shifting, or not fitting tightly to the support surface 141 due to human error during later installation (such as positioning deviation or uneven tightening force), affecting the vibration damping effect and long-term stability. In contrast, the vibration damping structure 300 and the mounting protrusion 140 of this invention are precisely matched through a mold, allowing for strict control of position, size, and bonding strength. The one-piece molding ensures precise alignment between the vibration damping structure 300 and the housing 100, avoiding loosening or shifting caused by later assembly errors. This ensures a high degree of fit and reliable connection between the vibration damping structure 300 and the support surface 141, thereby improving product stability and consistency, and ultimately enhancing the stability of motor operation.

[0043] Furthermore, in traditional solutions, independent vibration damping pads need to be purchased, stored, and managed separately, increasing material management and inventory costs. In contrast, the motor of this invention integrates the vibration damping structure 300 into the housing 100, reducing the number of components, simplifying the supply chain and production management, lowering the difficulty of material management, and helping to reduce overall manufacturing costs.

[0044] The technical solution of this utility model solves the problems of low efficiency and complex assembly caused by the need for independent vibration damping pads to be assembled in subsequent processes in traditional structures by integrally molding the vibration damping structure 300 with the mounting protrusion 140 on the motor housing 100. This improves the motor assembly efficiency and thus the motor production efficiency. At the same time, it also helps to enhance the overall structural strength and vibration damping effect of the motor.

[0045] In one implementation, please refer to Figures 3 to 5 The support surface 141 is formed on the peripheral sidewall of the mounting protrusion 140, and the vibration damping structure 300 is an annular structure and is fitted to the support surface 141.

[0046] The support surface 141 is formed on the peripheral sidewall of the mounting protrusion 140. The vibration damping structure 300 is annular and is fitted to the support surface 141. That is, the vibration damping structure 300 is fitted to the peripheral sidewall of the mounting protrusion 140 along its circumference. The fitting between the vibration damping structure 300 and the support surface 141 means that the two are directly joined by an integral molding process, and the two are in close contact without gaps, thereby ensuring the tightness and stability of the connection between the vibration damping structure 300 and the mounting protrusion 140.

[0047] The vibration damping structure 300 is a ring-shaped structure, its shape matching the contour of the peripheral sidewall of the mounting protrusion 140. It can be a circular ring or a rectangular ring, etc. The ring-shaped design of the vibration damping structure 300 ensures that the damping material is distributed around the entire circumference of the mounting protrusion 140, forming a continuous damping layer, rather than a locally distributed, independent block structure. Vibrations generated during motor operation are absorbed and attenuated from multiple directions by the ring-shaped vibration damping structure 300. Vibration energy is evenly dispersed through the annular contact surface, thereby reducing vibration leakage and improving the overall vibration reduction and noise reduction effect.

[0048] In other embodiments, the vibration damping structure 300 may also be an arc-shaped structure, with multiple vibration damping structures 300 spaced apart circumferentially along the mounting protrusion 140. Alternatively, the support surface 141 may also be formed on the axial end face of the mounting protrusion 140, with the vibration damping structure 300 being annular and fitting against the annular end face of the mounting protrusion 140.

[0049] In one implementation, please refer to Figure 6 and Figure 7 The axial height H1 of the vibration damping structure 300 is greater than or equal to the radial thickness D of the vibration damping structure 300.

[0050] The axial height H1 of the vibration damping structure 300 is the distance from one end of the vibration damping structure 300 near the first end face 110 to the other end away from the first end face 110; the radial thickness D of the vibration damping structure 300 is the distance from the inner side (near the mounting protrusion 140) of the vibration damping structure 300 to the outer side (away from the mounting protrusion 140) of the vibration damping structure 300.

[0051] The axial height H1 of the vibration damping structure 300 is greater than or equal to its radial thickness D, meaning the axial extension of the vibration damping structure 300 is greater than or equal to its radial width. This results in a stronger compressive deformation capacity for the vibration damping structure 300. During assembly, when external components press against the vibration damping structure 300, the larger H1 provides more elastic compression space, which helps absorb vibration energy from different directions. Simultaneously, the larger H1 allows the contact area between the vibration damping structure 300 and the mounting surface of the mounting part to extend further axially, resulting in a larger contact area and more uniform and abundant vibration energy transmission. This, in turn, improves the vibration damping and noise reduction effect of the vibration damping structure 300.

[0052] Furthermore, the radial thickness D of the vibration damping structure 300 directly affects its radial stiffness (the ability to resist radial deformation), while the axial height H1 affects its axial stiffness (the ability to resist axial deformation). When H1≥D, the radial stiffness of the vibration damping structure 300 is relatively low, making it prone to radial deformation, while the axial stiffness is relatively high, making it less prone to axial instability. This allows radial vibrations caused by motor rotor imbalance or electromagnetic forces to deform through the radial thin-walled structure of the vibration damping structure 300, quickly dissipating energy. At the same time, the axial support stiffness of the vibration damping structure 300 is sufficient, preventing the motor from colliding with or loosening from the mounting surface of the mounting part due to excessive axial vibration, thereby improving operational stability.

[0053] In other embodiments, the axial height H1 of the damping structure 300 may also be less than the radial thickness D of the damping structure 300.

[0054] In one implementation, please refer to Figure 7 The axial height H1 of the vibration damping structure 300 satisfies: 5mm≤H1≤8mm.

[0055] For example, axial movement of the rotor due to its own weight can cause some vibration energy to concentrate in the axial direction during motor operation. By limiting H1 to between 5mm and 8mm, sufficient axial deformation space is provided for the vibration damping structure 300, allowing it to undergo moderate compression or stretching during axial vibration transmission, effectively absorbing vibration energy. Meanwhile, the internal space of refrigeration equipment is typically compact, and the dimensional accuracy of the fit between its mounting surface and the vibration damping structure is high. Using 5mm ≤ H1 avoids the cantilever effect caused by an excessively short vibration damping structure 300 (i.e., the vibration damping structure 300 only partially contacts the mounting surface, and vibration transmission is not blocked); using H1 ≤ 8mm prevents excessive length from occupying too much axial space and interfering with other motor components (such as the end cover 130 and heat sink).

[0056] In other embodiments, the axial height H1 of the vibration damping structure 300 can also satisfy: 4mm≤H1<5mm, or 8mm

[0057] In one implementation, please refer to Figure 7 The thickness D of the vibration damping structure 300 in the radial direction satisfies: 3mm≤D≤5mm.

[0058] For example, circumferential vibration caused by rotor imbalance will concentrate some of the vibration energy in the radial direction of the motor during operation. By limiting D to between 3mm and 5mm, the radial thickness of the vibration damping structure 300 is ensured to be moderate. This prevents the structure from being too thin, resulting in insufficient radial stiffness and easy wear, or too thick, leading to excessive radial stiffness and ineffective absorption of radial vibration. This ensures that the vibration damping structure 300 effectively absorbs vibration energy. Furthermore, 3mm ≤ D can compensate for minor unevenness of the mounting surface through elastic deformation, and D ≤ 5mm prevents the edge of the vibration damping structure 300 from extending beyond the mounting surface and colliding with surrounding components.

[0059] In other embodiments, the radial thickness D of the damping structure 300 can also satisfy: 2mm ≤ D < 3mm, or 5mm < D ≤ 8mm.

[0060] In one implementation, please refer to Figure 7 5mm≤H1≤8mm, and 3mm≤D≤5mm.

[0061] With a range of 5mm ≤ H1 ≤ 8mm and 3mm ≤ D ≤ 5mm, the deformation of the vibration damping structure 300 can quickly dissipate energy and buffer axial movement, preventing collisions between the motor and the mounting surface of the mounting part due to excessive vibration offset. Simultaneously, 1 ≤ H1 / D ≤ 2.67 ensures the stiffness of the vibration damping structure 300 in different directions, effectively avoiding imbalances in axial tension and radial compression.

[0062] In one implementation, please refer to Figure 6 and Figure 7 The outer end face of the vibration damping structure 300 protrudes from the outer end face of the mounting protrusion 140 in a direction away from the first end face 110.

[0063] ​The outer end face of the mounting protrusion 140 refers to the end surface of the mounting protrusion 140 away from the first end face 110; the outer end face of the vibration damping structure 300 refers to the end surface of the vibration damping structure 300 away from the first end face 110 in the axial direction. The outer end face of the vibration damping structure 300 protrudes from the outer end face of the mounting protrusion 140 in the direction away from the first end face 110, that is, the vibration damping structure 300 not only covers the peripheral sidewall of the mounting protrusion 140, but also extends further in the axial direction away from the first end face 110, and finally its end extends beyond the end of the mounting protrusion 140 itself.

[0064] The outer end face of the vibration damping structure 300 protrudes beyond the outer end face of the mounting protrusion 140. The end of the mounting protrusion 140 no longer directly contacts the mounting part; instead, the outer end face of the vibration damping structure 300 acts as a buffer layer. This helps eliminate rigid transmission paths, ensuring that vibration energy is absorbed by the vibration damping structure 300 before being transmitted to the mounting part. This avoids direct contact between the outer end face of the mounting protrusion 140 and the mounting part, significantly improving the vibration damping effect. The protrusion of the outer end face of the vibration damping structure 300 also increases axial buffer space. When the motor shaft 200 moves axially, the outer end face of the vibration damping structure 300 first contacts the mounting part and absorbs the axial energy through elastic deformation, preventing rigid collisions between the mounting protrusion 140 and the mounting part. This effectively suppresses the motor's axial movement, reduces noise, and protects the equipment. In addition, the outer end face of the vibration damping structure 300 protrudes from the outer end face of the mounting protrusion 140, and the vibration damping structure 300 itself becomes the reference surface for assembly positioning. During installation, simply align the outer end face of the vibration damping structure 300 with the mounting surface of the mounting part to automatically align the position of the mounting protrusion 140 without additional adjustment, thereby simplifying the assembly process, reducing errors from manual operation, and improving the installation consistency of the motor.

[0065] In other embodiments, the outer end face of the vibration damping structure 300 is flush with the outer end face of the mounting protrusion 140.

[0066] In one implementation, please refer to Figure 7 The height H2 of the vibration damping structure 300 protruding from the mounting protrusion 140 in the axial direction satisfies: 0.5mm≤H2≤1.5mm.

[0067] The damping structure 300 protrudes axially beyond the height of the mounting protrusion 140, i.e., H2 is the distance from the outer end face of the mounting protrusion 140 to the outer end face of the damping structure 300. 0.5 mm ≤ H2, which helps to avoid direct contact between the mounting protrusion 140 and the mounting part and effectively prevents the direct transmission of some vibrations; H2 ≤ 1.5 mm, which avoids interference between the damping structure 300 and other components of the refrigeration equipment due to excessive extension and damage to the assembly. When 0.5 mm ≤ H2 ≤ 1.5 mm, there is no need to compensate for the buffering performance by increasing the radial thickness or axial height, avoiding an increase in material usage; at the same time, it also avoids an increase in the complexity of the mold due to excessive extension, resulting in an increase in manufacturing costs. Therefore, by limiting the value range of H2, while ensuring the damping performance, the material usage is reduced and the manufacturing cost is lowered.

[0068] In other embodiments, the height H2 of the damping structure 300 protruding axially beyond the mounting protrusion 140 may also satisfy: 0.2 mm ≤ H2 < 0.5 mm, or 1.5 mm < H2 ≤ 3 mm.

[0069] In one embodiment, please refer to Figure 6 and Figure 7 , the inner end face of the damping structure 300 is in contact with the first end face 110.

[0070] The inner end face of the damping structure 300 refers to the end face at the end of the side of the damping structure 300 close to the first end face 110. The inner end face of the damping structure 300 is in close contact with the first end face 110, forming an integral connection with the housing 100. The fitting design of the inner end face and the first end face 110 eliminates the gap between the inner end face of the damping structure 300 and the first end face 110, blocking the path of vibration energy transmission through this gap. The damping structure 300 can effectively absorb the vibration energy on this path, thereby improving the damping efficiency of the damping structure 300. The damping structure 300 and the housing 100 are integrally formed by an overmolding process to achieve the fitting of the inner end face and the first end face 110, increasing the effective area of the connection between the damping structure 300 and the housing 100, and further ensuring the stability and reliability of the connection between the damping structure 300 and the housing 100.

[0071] In other embodiments, there may also be a gap between the inner end face of the damping structure 300 and the first end face 110.

[0072] In one embodiment, the damping structure 300 is integrally formed on the mounting protrusion 140 by an overmolding process.

[0073] The vibration damping material is injected into a pre-set mold, at least covering and wrapping the support surface 141 of the mounting protrusion 140. After cooling and solidification, it forms a firmly bonded integrated structure with the base material of the mounting protrusion 140, significantly reducing the risk of the vibration damping structure 300 falling off. The plastic coating process allows direct control of the axial height H1, radial thickness D, and axial protrusion H2 of the vibration damping structure 300 through the cavity design of the mold. Compared with the traditional method of cutting, grinding, and assembling independent vibration damping pads, the vibration damping structure 300 formed by the plastic coating process of this utility model has higher dimensional accuracy and avoids dimensional deviations caused by manual operation.

[0074] In other embodiments, the vibration damping structure 300 can also be integrally formed onto the mounting protrusion 140 through processes such as insert injection molding, secondary injection molding, and compression molding.

[0075] In one embodiment, the vibration damping structure 300 is configured as a thermoplastic elastomer material.

[0076] Thermoplastic elastomers (TPEs) offer advantages such as heatability, rapid cooling and molding, high elasticity, and low cost. These advantages allow for rapid, integrated molding with the mounting protrusion 140, achieving vibration and noise reduction, improving motor production efficiency, and lowering production costs. For example, the vibration damping structure 300 can be made of thermoplastic polyurethane (TPU), styrene-based thermoplastic elastomers (TPE-S, such as SBS and SEBS), or polyolefin-based thermoplastic elastomers (TPO). Thermoplastic elastomers have short curing times and can be rapidly molded, shortening the production cycle. They also enable integrated molding of the mounting protrusion 140 and the vibration damping structure 300, significantly reducing manual assembly costs and quality fluctuation risks. In the coating process, TPE materials form a strong bond with the metal or plastic substrate, ensuring that the vibration damping structure 300 is not easily detached or damaged during long-term operation.

[0077] In other embodiments, the vibration damping structure 300 may also be configured as polyurethane, modified polypropylene, ethylene-vinyl acetate copolymer, etc.

[0078] In one embodiment, the vibration damping structure 300 is made of thermoplastic elastomer material and is directly integrated with the mounting protrusion 140 through a plastic coating molding process.

[0079] In one implementation, please refer to Figure 3 , Figure 4 and Figure 6 The housing 100 includes a main housing portion 120 and an end cap 130 connected to each other. The main housing portion 120 has a mounting cavity and an opening communicating with the mounting cavity. The end cap 130 is connected to the opening and has a mounting protrusion 140. The main housing portion 120 has another mounting protrusion 140. Both mounting protrusions 140 are provided with vibration damping structures 300.

[0080] The main housing 120 has a mounting cavity for accommodating internal components of the motor, such as the stator, rotor, and windings. One side of the main housing 120 forms a first end face 110, while the opposite side is open, communicating with the mounting cavity to facilitate the installation and maintenance of the internal components. An end cover 130 is installed at the open portion, together with the main housing 120, to close the mounting cavity, forming a complete motor housing 100. The end cover 130 also forms another first end face 110. The main housing 120 and the end cover 130 are separate structures, which can be manufactured independently and then assembled together by threaded connections, welding, or other methods, thus facilitating the disassembly and assembly of the internal components. Both the main housing 120 and the end cover 130 are provided with mounting protrusions 140, which are arranged opposite each other and each has a vibration damping structure 300. The two mounting protrusions 140 provide bidirectional mounting interfaces for the motor, allowing the motor to be connected to the refrigeration equipment via the end cover 130 side or the main housing 120 side, adapting to different installation scenarios such as top mounting, bottom mounting, or side mounting. Simultaneously, the vibration damping structure 300 on each mounting protrusion 140 independently performs vibration damping functions, collectively absorbing and isolating vibration energy during motor operation, further enhancing the overall stability of the motor and the effect of vibration reduction and noise reduction.

[0081] In other embodiments, only the main housing portion 120 or only the end cap 130 may be provided with a mounting protrusion 140.

[0082] In one implementation, please refer to Figure 1 , Figure 2 and Figure 6 One end of the motor shaft 200 is connected to the inside of the mounting protrusion 140 on the end cover 130, and the other end protrudes from the mounting protrusion 140 on the main housing 120.

[0083] One end of the motor shaft 200 is inserted into the mounting protrusion 140 of the end cover 130 and rotates with the bearing inside the mounting protrusion 140 to form a fulcrum; the other end protrudes from the mounting protrusion 140 of the main housing 120 and rotates with the shaft inside the mounting protrusion 140, serving as the output end. The mounting protrusion 140 provides good axial and radial support stability for the motor shaft 200, provides a precise axis positioning reference, and reduces vibration and noise caused by axis misalignment of the motor shaft 200. Vibration damping structures 300 are provided on both the end cover 130 and the two mounting protrusions 140 of the main housing 120. When both ends of the motor shaft 200 are supported by these two mounting protrusions 140 with vibration damping structures 300, vibration transmission from external structures can be effectively isolated, and the outward diffusion of vibration generated by the motor itself can be reduced, achieving bidirectional vibration damping protection and improving the overall operational stability of the machine.

[0084] In other embodiments, one end of the motor shaft 200 protrudes from the mounting protrusion 140 on the end cover 130, and the other end protrudes from the mounting protrusion 140 on the main housing portion 120. Alternatively, the end cover 130 may not have a mounting protrusion 140, and one end of the motor shaft 200 may protrude from the mounting protrusion 140 on the main housing portion 120, while the other end may be fitted into the mounting cavity via other mounting structures.

[0085] This utility model also proposes a refrigeration device, which includes a motor. The specific structure of the motor is as described in the above embodiments. Since this refrigeration device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0086] 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 machine characterized in that, include: A housing having two axially opposed first end faces, at least one of the first end faces having a mounting protrusion having a supporting surface, and the motor shaft of the motor passing through at least one of the mounting protrusions; and The vibration damping structure is provided at least on the support surface and is integrally formed with the mounting protrusion.

2. The electric machine of claim 1, wherein, The support surface is formed on the peripheral sidewall of the mounting protrusion, and the vibration damping structure is a ring-shaped structure that is fitted to the support surface.

3. The electric machine of claim 2, wherein, The axial height H1 of the vibration damping structure is greater than or equal to the radial thickness D of the vibration damping structure.

4. The electric machine of claim 3, wherein, 5mm≤H1≤8mm; And / or, 3mm≤D≤5mm.

5. The electric machine of claim 2, wherein, In the axial direction, the outer end face of the vibration damping structure protrudes from the outer end face of the mounting protrusion in a direction away from the first end face.

6. The electric machine of claim 5, wherein, The height H2 of the vibration damping structure protruding from the mounting protrusion in the axial direction satisfies: 0.5mm≤H2≤1.5mm.

7. The electric machine of claim 1, wherein, The inner end face of the vibration damping structure is in contact with the first end face; And / or, the vibration damping structure is integrally molded onto the mounting protrusion using a plastic coating process; And / or, the vibration damping structure is configured as a thermoplastic elastomer material.

8. The motor as described in claim 1, characterized in that, The housing includes a main housing portion and an end cap connected to each other. The main housing portion has a mounting cavity and an opening communicating with the mounting cavity. The end cap is connected to the opening and has one mounting protrusion. The main housing portion has another mounting protrusion. Both mounting protrusions are provided with the vibration damping structure.

9. The electric machine of claim 8, wherein, One end of the motor shaft is connected to the inside of the mounting protrusion on the end cover, and the other end protrudes from the mounting protrusion on the main housing.

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

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