A heat dissipation housing structure for an electric motor

Abstract

The utility model relates to motor shell technical field, concretely discloses a heat dissipation casing structure for motor, including the casing, the middle part fixed connection motor body of casing, the surface of casing all fixedly open the heat dissipation mouth around, the tail end fixed connection end plate of casing, the fixed connection multiple mountings on end plate, the surface fixed connection reinforcing component of casing, reinforcing component includes reinforcing layer one and reinforcing layer two, fixed mounting has a plurality of support rods between reinforcing layer one and reinforcing layer two, and the gap for the heat dissipation mouth is left between reinforcing layer one and reinforcing layer two and exposes. Through setting reinforcing layer one and reinforcing layer two outside the casing, and the both sides are connected through the support rod, the effective reinforcement is formed to the both ends of the casing, and the inside of reinforcing layer one and reinforcing layer two all sets up several groups of reinforcing ribs, can effectively resist the extrusion stress in the transportation process, avoids the warping deformation at the end cover interface, guarantees the coaxial degree of rotor and stator.

Description

Technical Field

[0001] This utility model relates to the field of motor housing technology, and in particular to a heat dissipation housing structure for motors. Background Technology

[0002] A search revealed patent number CN202021523396.5, which describes a motor housing and a motor. The motor housing includes: a cylindrical wall; several mounting portions extending axially along the wall, each mounting portion including a mounting block and two welded edges. The mounting block is spaced apart from the outer surface of the wall to form an accommodating space, and the two welded edges are located on both sides of the mounting block and fixedly connected to the wall. The mounting block has a slot; and several mounting bolts are disposed in the accommodating space. The motor housing has mounting portions with slots, and the mounting bolts are disposed on the mounting portions, facilitating free control of the installation position during motor installation, providing high flexibility, eliminating the need for a motor bracket, and reducing material waste.

[0003] The aforementioned patent makes motor installation more convenient and flexible by using mounting bolts and mounting parts. However, in actual use, it has been found that traditional motor housings do not have additional reinforcing components or heat dissipation vents. When there are no reinforcing layers at both ends of the housing, the impact force during transportation can easily cause local warping or even deformation of the bearing housing, affecting the coaxiality of the rotor and stator. When there is an external impact, the lack of a reinforcing layer makes it difficult to disperse the impact force, which can easily lead to local cracking. Furthermore, relying solely on the housing for natural heat dissipation, heat can easily accumulate inside the motor, causing the winding temperature to exceed the allowable value, directly affecting the insulation performance.

[0004] Therefore, we propose a heat dissipation housing structure for motors. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] This utility model provides a heat dissipation housing structure for an electric motor, which can solve the problem that the operation of the internal motor is directly affected by the impact on the housing. The specific solution is as follows:

[0007] A heat dissipation housing structure for an electric motor includes a housing, a motor body fixedly connected to the middle of the housing, heat dissipation vents fixedly formed on all four sides of the surface of the housing, an end plate fixedly connected to the tail end of the housing, a plurality of mounting seats fixedly connected to the end plate, and a reinforcing component fixedly connected to the surface of the housing. The reinforcing component includes a first reinforcing layer and a second reinforcing layer, a plurality of support rods fixedly installed between the first reinforcing layer and the second reinforcing layer, and a gap is left between the first reinforcing layer and the second reinforcing layer to expose the heat dissipation vents.

[0008] As a preferred technical solution of this utility model, both the first reinforcing layer and the second reinforcing layer are made of steel. Both the first reinforcing layer and the second reinforcing layer are provided with a number of reinforcing ribs inside. The number of reinforcing ribs are distributed in a circle with the central axis of the first reinforcing layer or the second reinforcing layer as the base point.

[0009] As a preferred technical solution of this utility model, a fixing plate is fixedly connected to the bottom of the inner side of the shell, and a washer is fixedly connected to one side of the fixing plate. The washer has a three-layer structure, and the washer consists of a moisture-proof layer, a heat insulation layer, and a shock-absorbing layer. Screw holes are opened at the four corners of the surface of the washer.

[0010] As a preferred embodiment of this utility model, multiple bolts are provided inside the housing, and these bolts pass through the motor body and are connected to the washers.

[0011] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0012] By setting reinforcement layer one and reinforcement layer two on the outside of the shell and connecting them with support rods, the two ends of the shell are effectively reinforced. Both reinforcement layer one and reinforcement layer two are provided with several sets of reinforcing ribs, which can effectively resist the extrusion stress during transportation, avoid warping deformation at the end cover interface, and ensure the coaxiality of the rotor and stator.

[0013] The reinforcement layer can disperse external impact force, and the reinforcing ribs can transmit the impact force to the entire shell to avoid local cracking. During operation, the reinforcing ribs can suppress shell resonance and reduce vibration wear on end cover seals and junction boxes, making it especially suitable for high vibration scenarios.

[0014] In addition, by opening heat dissipation vents on the surface of the housing, the housing has a hollow structure, which provides better heat dissipation for the internal motor, allowing the motor to operate under high load conditions and avoiding the aging of the lubricating grease in the bearings inside the motor due to high temperature.

[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the reinforcing layer structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the shell of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the reinforcing layer of this utility model;

[0021] The accompanying figure is labeled as follows:

[0022] 1. Housing; 2. Mounting base; 3. End plate; 4. Reinforcement layer one; 5. Reinforcement layer two; 6. Heat dissipation vent; 7. Motor body; 8. Reinforcing rib; 9. Fixing plate; 10. Washer; 11. Bolt; 12. Support rod. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and, together with the embodiments of the present invention, serve to illustrate the principles of the present invention.

[0024] See Figures 1-4 This utility model provides a heat dissipation housing structure for an electric motor, including a housing 1, a motor body 7 fixedly connected to the middle of the housing 1, heat dissipation vents 6 fixedly opened on all four sides of the surface of the housing 1, an end plate 3 fixedly connected to the tail end of the housing 1, a plurality of mounting seats 2 fixedly connected to the end plate 3, and a reinforcing component fixedly connected to the surface of the housing 1. The reinforcing component includes a first reinforcing layer 4 and a second reinforcing layer 5, a plurality of support rods 12 fixedly installed between the first reinforcing layer 4 and the second reinforcing layer 5, and a gap is left between the first reinforcing layer 4 and the second reinforcing layer 5 for the heat dissipation vents 6 to be exposed.

[0025] Both reinforcement layer 4 and reinforcement layer 5 are made of steel. Each layer has several reinforcing ribs 8 internally, distributed circumferentially around the central axis of either layer. Steel's tensile strength is significantly higher than that of aluminum alloys and engineering plastics. As a reinforcement layer, it can directly withstand the radial torque (such as centrifugal force generated by high-speed rotor rotation) and axial installation force during motor operation, preventing plastic deformation of the casing under heavy loads. The combination of the steel reinforcement layer and the casing's circumferential ribs increases the overall rigidity of the casing by 50%-80%. Its natural frequency is far from the vibration frequency of the motor, avoiding amplitude amplification caused by resonance. Steel exhibits stable mechanical properties in casing-to-casing environments ranging from 40℃ to 200℃. Combined with the structural support of the circumferential ribs, it can resist thermal stress generated by alternating high and low temperatures, reducing the risk of casing cracking. If the surface is galvanized or powder-coated, its resistance to salt spray and corrosion can be further improved, making it suitable for corrosive environments such as coastal areas and chemical plants.

[0026] A fixing plate 9 is fixedly connected to the bottom of the inner part of the housing 1. A washer 10 is fixedly connected to one side of the fixing plate 9. The washer 10 has a three-layer structure, which consists of a moisture-proof layer, a heat insulation layer, and a shock-absorbing layer. Screw holes are opened at the four corners of the surface of the washer 10. The moisture-proof layer prevents external moisture from seeping into the housing 1 through the gap of the bolt 11 connection, avoiding rusting of the metal parts of the motor body 7 and short circuit of the winding due to moisture. It is especially suitable for humid working conditions. The heat insulation layer can block the external high temperature of the housing 1 or the internal heat of the motor from being conducted outward, avoiding heat accumulation that affects the performance of the bearing grease. At the same time, it protects the external parts of the housing from high temperature damage. The shock-absorbing layer absorbs the vibration of the motor during operation through its own deformation. It can also buffer the rigid contact between the bolt 11 and the motor body 7, reduce the vibration transmitted to the housing 1, reduce operating noise, and is suitable for high vibration scenarios.

[0027] Multiple bolts 11 are installed inside the housing 1. These bolts 11 pass through the motor body 7 and are interconnected with washers 10. The elasticity of the three layers of washers 10 complements the rigidity of the fixing plate 9, which not only buffers the instantaneous impact force when the bolts 11 are tightened, but also maintains the stability of the bolt connection through the support of the fixing plate 9, preventing uneven local stress caused by vibration after long-term operation. The screw holes at the four corners of the washers 10 correspond precisely to the multiple bolts 11. With the positioning function of the fixing plate 9, the relative position of the motor body 7 and the housing 1 can be quickly calibrated to ensure coaxiality and reduce assembly errors. The three-layer integrated design eliminates the need for separate moisture-proof, heat-insulating, and shock-absorbing accessories, allowing for one-time assembly. During maintenance, the washers can be removed by disassembling the bolts 11, making replacement or repair more convenient and ensuring high accuracy in repeated assembly.

[0028] The moisture-proof layer prevents bolts 11 and bolt holes from getting stuck due to rust, ensuring the feasibility of subsequent disassembly and maintenance; the heat insulation layer delays the aging of the material at the contact points between the bolts and the motor body 7, making it especially suitable for alternating high and low temperature environments; the shock-absorbing layer reduces the continuous impact of vibration on the bolt 11 connection, reducing the risk of bolt 11 loosening, and at the same time reducing resonance damage between the motor body 7 and the housing 1, thus extending the overall service life of the motor from the perspective of the connection structure.

[0029] By setting a first reinforcement layer 4 and a second reinforcement layer 5 on the outside of the housing 1, and connecting the two through a support rod 12, the two ends of the housing 1 are effectively reinforced. Both the first reinforcement layer 4 and the second reinforcement layer 5 are provided with several sets of reinforcing ribs 8, which can effectively resist the compressive stress during transportation, avoid warping deformation at the end cover interface, and ensure the coaxiality of the rotor and stator.

[0030] The reinforcement layer can disperse external impact force, and the reinforcing rib 8 can transmit the impact force to the entire shell to avoid local cracking. During operation, the reinforcing rib 8 can suppress shell resonance and reduce vibration wear on end cover seals and junction boxes, making it especially suitable for high vibration scenarios.

[0031] In addition, by opening heat dissipation vents 6 on the surface of the housing 1, the housing 1 has a hollow structure, which provides better heat dissipation for the internal motor, allowing the motor to operate under high load conditions and avoiding the phenomenon of aging of the lubricating grease in the bearings inside the motor due to high temperature.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heat dissipation housing structure for an electric motor, characterized in that: The device includes a housing (1), a motor body (7) is fixedly connected to the middle of the housing (1), heat dissipation vents (6) are fixedly opened on all four sides of the surface of the housing (1), an end plate (3) is fixedly connected to the tail end of the housing (1), a plurality of mounting seats (2) are fixedly connected to the end plate (3), and a reinforcing component is fixedly connected to the surface of the housing (1). The reinforcing component includes a first reinforcing layer (4) and a second reinforcing layer (5). A plurality of support rods (12) are fixedly installed between the first reinforcing layer (4) and the second reinforcing layer (5). A gap is left between the first reinforcing layer (4) and the second reinforcing layer (5) to allow the heat dissipation vents (6) to be exposed.

2. The heat dissipation housing structure for an electric motor as described in claim 1, characterized in that: Both the first reinforcement layer (4) and the second reinforcement layer (5) are made of steel. Both the first reinforcement layer (4) and the second reinforcement layer (5) are provided with several reinforcing ribs (8). The several reinforcing ribs (8) are distributed in a circle with the central axis of the first reinforcement layer (4) or the second reinforcement layer (5) as the base point.

3. The heat dissipation housing structure for an electric motor as described in claim 2, characterized in that: The bottom of the housing (1) is fixedly connected to a fixing plate (9), and a washer (10) is fixedly connected to one side of the fixing plate (9). The washer (10) has a three-layer structure, and the washer (10) consists of a moisture-proof layer, a heat insulation layer and a shock-absorbing layer. Screw holes are opened at the four corners of the surface of the washer (10).

4. The heat dissipation housing structure for an electric motor as described in claim 3, characterized in that: Multiple bolts (11) are installed inside the housing (1), and the multiple bolts (11) pass through the motor body (7) and are connected to the washer (10).

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