Noise reduction shell of motor

Abstract

The utility model discloses a noise reduction housing of a motor, which belongs to the technical field of motors and comprises an aluminum housing, a plurality of composite sound insulation plates mounted in the aluminum housing, heat conduction gaps reserved between adjacent composite sound insulation plates, and heat conduction members mounted in the heat conduction gaps and attached to the composite sound insulation plates, the composite sound insulation plate is formed by compounding a panel, a first sound absorption plate, a second sound absorption plate and an end heat conduction sealing plate, the heat conduction piece comprises a sound insulation heat transfer box installed in a heat conduction gap, and the outer end face of the heat conduction piece is connected with a heat collection bent plate attached to the surface of the composite sound insulation plate. The technical key points are as follows: the composite sound insulation board is formed by compounding a plurality of sound absorption structures, so that compared with a traditional sound insulation pasting material, the composite sound insulation board has higher sound insulation capacity and does not occupy too much space, in addition, heat released by internal operation of the motor can be collected through the heat collection bent plate and is transferred to the aluminum shell through the sound insulation heat transfer box, and the heat insulation effect is improved. And then heat is dissipated outwards through a heat dissipation structure on the aluminum shell.

Description

Technical Field

[0001] This utility model relates to the field of electric motor technology, specifically to a noise reduction housing for an electric motor. Background Technology

[0002] As a critical protective component of the motor, the motor housing serves multiple functions, including protecting the internal precision structure, heat dissipation, sound insulation, and protection against external corrosion. Its design must balance strength, rigidity, and lightweight. Common materials include cast iron (high strength, excellent heat dissipation but heavier), aluminum alloy (lightweight, corrosion-resistant, good thermal conductivity), plastic (easy to process, insulating but low strength), and stainless steel (high corrosion resistance), with the choice depending on the motor type, power, and application scenario. Structurally, the housing must be adaptable to the installation space, optimize the internal layout to ensure precise positioning of components such as the stator and rotor, and incorporate an effective heat dissipation structure to prevent overheating. Simultaneously, it must be well-sealed to prevent moisture and dust from entering.

[0003] The utility model patent with announcement number CN221767749U discloses an electric motor with a noise-reducing shell. This electric motor with a noise-reducing shell, through the setting of a base, a first sound-insulating shell, a second sound-insulating shell, a sound-insulating board, sound-insulating cotton, a sound-insulating groove, a sound-absorbing hole and a motor body, can reduce the noise of the electric motor during operation, thereby avoiding excessive noise from the electric motor and causing adverse effects on the surrounding staff. This improves the noise reduction effect of the electric motor during operation and further meets people's current usage needs.

[0004] While the aforementioned motor housing can provide some sound insulation, it involves directly adding a housing to the outside of the motor, resulting in low integration of the motor housing itself. This double-layer housing structure occupies a significant amount of space, which is detrimental to the design layout and installation of the motor. Furthermore, since the sound insulation housing directly covers the outside of the motor, forming a closed space, it relies on air for heat conduction, resulting in less than ideal heat dissipation. During prolonged operation of the motor, a high-temperature environment may form inside the sound insulation housing, thereby affecting the high-speed and stable operation of the motor. Therefore, to address the above issues, a noise-reducing housing for electric motors is proposed. Utility Model Content

[0005] The technical problem this utility model aims to solve is to provide a noise-reducing housing for an electric motor. This housing integrates a composite sound insulation panel inside an aluminum shell. Because it is composed of multiple sound-absorbing structures, it has stronger sound insulation capabilities compared to traditional sound insulation materials, while not occupying too much space. In addition, heat-conducting components are provided in the thermally conductive gaps between the composite sound insulation panels. These components collect the heat released by the motor during operation through heat-collecting plates and transfer it to the aluminum shell through a sound insulation heat transfer box. Subsequently, the heat is dissipated outward through the heat dissipation structure on the aluminum shell. This ensures that the motor housing has both strong sound insulation and strong heat dissipation capabilities. This solves the technical problems of comparative technologies, such as low integration of sound insulation measures, large space occupation, and the lack of good heat dissipation measures in the sound insulation housing, which leads to high temperatures in the internal motor during continuous operation.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A noise-reducing housing for an electric motor includes an aluminum housing with several composite sound-insulating panels arranged in a circular array inside. Thermally conductive gaps are left between adjacent composite sound-insulating panels. A heat-conducting component is installed in these gaps and is attached to the composite sound-insulating panels. Each composite sound-insulating panel is composed of a panel, a first sound-absorbing panel, a second sound-absorbing panel, and an end thermally conductive sealing panel. The heat-conducting component includes a sound-insulating heat transfer box installed in the thermally conductive gaps, with a heat-collecting curved plate attached to the surface of the composite sound-insulating panel on its outer end face. The composite sound-insulating panel is composed of multiple sound-absorbing structures, thus providing stronger sound insulation compared to traditional sound-insulating materials, while not occupying excessive space. Furthermore, the heat-collecting curved plate collects the heat released during the motor's internal operation and transfers it to the aluminum housing through the sound-insulating heat transfer box. The heat is then dissipated outwards through the heat dissipation structure on the aluminum housing. In summary, this ensures that the motor housing has both strong sound insulation and strong heat dissipation capabilities.

[0008] In one possible implementation, both the first and second sound-absorbing panels are provided with honeycomb holes, and the panel is provided with sound-absorbing holes. The honeycomb holes on the first and second sound-absorbing panels are arranged alternately. Based on the above structure, the honeycomb holes and the sound-absorbing holes can work together. Noise is transmitted from the sound-absorbing holes to the honeycomb holes for multiple reflections and energy dissipation, thereby achieving the effect of sound absorption.

[0009] In one possible implementation, the panel edge is provided with a edging, the end of which is sealed to the end heat-conducting sealing plate. The first sound-absorbing plate and the second sound-absorbing plate are disposed between the panel and the end heat-conducting sealing plate, and a sound-absorbing cavity is preset between the first sound-absorbing plate and the second sound-absorbing plate. The above structure can achieve the overall sealing of the composite sound insulation panel. At the same time, the design of the sound-absorbing cavity can increase the number of times the sound is reflected during transmission, further enhancing its sound absorption and noise reduction capabilities.

[0010] In one possible implementation, the sound insulation heat transfer box has a rectangular through groove with a partition frame inside, and both ends of the sound insulation heat transfer box are equipped with closed covers. The rectangular through groove is filled with a heat-conducting medium, which can efficiently transfer heat to the aluminum shell through the internal heat-conducting medium. In addition, the partition frame can form multiple partitions, which can play a certain role in sound insulation.

[0011] In one possible implementation, the partition frame includes several horizontal partitions that are fixed together by longitudinal connecting pieces, and several symmetrically arranged liquid passage holes are provided on the horizontal partitions. Based on the above structure, the internal space of the sound insulation heat transfer box can be divided into several layers, which can achieve a certain sound insulation effect. The liquid passage holes can allow the heat conduction medium to pass through, making the heat transfer more uniform and efficient.

[0012] In one possible implementation, the heat-collecting curved plate has a mating hole corresponding to the sound-absorbing hole, wherein the diameter of the mating hole is smaller than the diameter of the sound-absorbing hole. This structural form can form a cavity structure, which is beneficial to further improve the sound absorption effect.

[0013] In one possible implementation, the aluminum housing has several symmetrically arranged mounting feet at both ends, with threaded through holes for mounting. This structure provides the necessary structural basis for the installation of the aluminum housing.

[0014] In one possible implementation, the outer wall of the aluminum shell is fixedly provided with a plurality of main heat dissipation fins and secondary heat dissipation fins arranged in a circumferential array. The positions of the main heat dissipation fins correspond to the positions of the heat-conducting components, and the secondary heat dissipation fins are disposed between the main heat dissipation fins. Through the above technical solution, the contact area between the aluminum shell and the air can be increased, thereby rapidly releasing the heat transferred to it.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] The motor housing integrates a composite sound insulation panel inside the aluminum housing. Since it is composed of a panel, a first sound-absorbing panel, a second sound-absorbing panel and an end heat-conducting sealing panel, and a sound-absorbing cavity is preset between the first sound-absorbing panel and the second sound-absorbing panel, when sound enters it, it can be reflected multiple times to dissipate energy. Therefore, it has a stronger sound insulation capability than traditional sound insulation materials, and does not take up too much space.

[0017] In addition, a heat-conducting component is installed in the thermally conductive gap between the composite sound insulation panels. It collects the heat released by the motor during operation through the heat-collecting curved plate and transfers it to the aluminum shell through the sound insulation heat transfer box. Then, it dissipates heat outward through the heat dissipation structure on the aluminum shell, which can ensure that the motor shell has a strong sound insulation effect as well as a strong heat dissipation capacity. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structural configuration of this utility model;

[0021] Figure 3 This is a schematic diagram of the composite sound insulation panel structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the heat-conducting component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the partition frame structure of this utility model.

[0024] In the diagram: 1. Aluminum housing; 11. Mounting feet; 12. Main heat dissipation fins; 13. Secondary heat dissipation fins; 2. Composite sound insulation board; 21. Panel; 211. Edge banding; 22. First sound-absorbing board; 23. Second sound-absorbing board; 24. Honeycomb holes; 25. End heat-conducting sealing plate; 26. Sound-absorbing cavity; 27. Sound-absorbing hole; 3. Heat-conducting component; 31. Sound insulation heat transfer box; 32. Heat-collecting curved plate; 33. Mating hole; 34. Divider; 341. Horizontal partition; 342. Longitudinal connecting plate; 343. Liquid passage hole; 35. Sealing cover. Detailed Implementation

[0025] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0026] like Figure 1 - Figure 3As shown, this embodiment provides a noise reduction housing for an electric motor, including an aluminum housing 1, inside which are installed a plurality of composite sound insulation panels 2 arranged in a circumferential array, with thermally conductive gaps between adjacent composite sound insulation panels 2. A heat-conducting component 3 is installed in the thermally conductive gap and is attached to the composite sound insulation panel 2. The composite sound insulation panel 2 is composed of a panel 21, a first sound-absorbing panel 22, a second sound-absorbing panel 23, and an end thermally conductive sealing plate 25. The heat-conducting component 3 includes a sound-insulating heat transfer box 31 installed in the thermally conductive gap, the outer end face of which is connected to the composite sound insulation panel 2. The heat-collecting curved plate 32 is attached to the surface of the sound insulation panel 2. The composite sound insulation panel 2 is composed of multiple sound-absorbing structures, so it has a stronger sound insulation capability than traditional sound insulation materials, and does not take up too much space. In addition, the heat-collecting curved plate 32 can collect the heat released by the motor during operation and transfer it to the aluminum shell 1 through the sound insulation heat transfer box 31. Then, the heat is dissipated to the outside through the heat dissipation structure on the aluminum shell 1. In summary, it can ensure that the motor shell has a strong sound insulation effect and a strong heat dissipation capability.

[0027] The first sound-absorbing panel 22 and the second sound-absorbing panel 23 are both provided with honeycomb holes 24, and the panel 21 is provided with sound-absorbing holes 27. The honeycomb holes 24 on the first sound-absorbing panel 22 and the second sound-absorbing panel 23 are arranged alternately. Based on the above structure, the honeycomb holes 24 and the sound-absorbing holes 27 can work together. Noise is transmitted from the sound-absorbing holes 27 to the honeycomb holes 24 for multiple reflections and energy dissipation, thus playing a sound absorption role. In addition, the edge of the panel 21 is provided with a edging 211, the end of which is sealed to the end heat-conducting sealing plate 25. The first sound-absorbing panel 22 and the second sound-absorbing panel 23 are located between the panel 21 and the end heat-conducting sealing plate 25, and a sound-absorbing cavity 26 is preset between the first sound-absorbing panel 22 and the second sound-absorbing panel 23. The above structure can achieve the overall sealing of the composite sound insulation panel 2, and the design of the sound-absorbing cavity 26 can increase the number of reflections of sound during transmission, further enhancing its sound absorption and noise reduction capabilities.

[0028] like Figure 4 - Figure 5 As shown, the sound insulation heat transfer box 31 has a rectangular through groove inside, in which a partition frame 34 is provided, and both ends of the sound insulation heat transfer box 31 are provided with closed cover plates 35. The rectangular through groove is filled with a heat-conducting medium. Through the heat-conducting medium inside, heat can be efficiently transferred to the aluminum shell 1. In addition, the partition frame 34 can form multiple partitions, which can play a certain role in sound insulation. The partition frame 34 includes several horizontal partitions 341, which are fixedly connected as one piece by longitudinal connecting pieces 342. Several symmetrically arranged liquid passage holes 343 are provided on the horizontal partitions 341. Based on the above structure, the internal space of the sound insulation heat transfer box 31 can be divided into several layers, which can play a certain role in sound insulation. The liquid passage holes 343 can allow the heat-conducting medium to pass through, making the heat transfer more uniform and efficient.

[0029] In addition, the heat collection plate 32 has mating holes 33 corresponding to the sound absorption holes 27. The diameter of the mating holes 33 is smaller than the diameter of the sound absorption holes 27. This structure can form a cavity structure, which is beneficial to further improve the sound absorption effect. Figure 4 As shown.

[0030] like Figure 1 As shown, the aluminum housing 1 has several symmetrically arranged mounting feet 11 at both ends, with threaded through holes for installation. This structure provides the necessary structural foundation for the installation of the aluminum housing 1.

[0031] like Figure 1 As shown, the outer wall of the aluminum shell 1 is fixed with a plurality of main heat dissipation fins 12 and secondary heat dissipation fins 13 arranged in a circumferential array. The positions of the main heat dissipation fins 12 correspond to the positions of the heat-conducting components 3, and the secondary heat dissipation fins 13 are disposed between the main heat dissipation fins 12. Through the above technical solution, the contact area between the aluminum shell 1 and the air can be increased, thereby rapidly releasing the heat transferred to it.

[0032] The working principle and usage process of this utility model:

[0033] The motor housing integrates a composite sound insulation panel 2 inside the aluminum housing 1. This panel is composed of a panel 21, a first sound-absorbing panel 22, a second sound-absorbing panel 23, and an end heat-conducting sealing plate 25. A sound-absorbing cavity 26 is pre-set between the first and second sound-absorbing panels 22 and 23. When sound enters this cavity, it undergoes multiple reflections to dissipate energy. Therefore, it has stronger sound insulation capabilities than traditional sound insulation materials, while not occupying excessive space. Specifically, the honeycomb holes 24 and sound-absorbing holes 27 work together. Noise enters the honeycomb holes 24 through the sound-absorbing holes 27 and undergoes multiple reflections to dissipate energy, thus absorbing sound. Simultaneously, the design of the sound-absorbing cavity 26 increases the number of reflections during sound transmission, further enhancing its sound absorption and noise reduction capabilities.

[0034] In addition, a heat-conducting element 3 is provided in the heat-conducting gap between the composite sound insulation panels 2. It collects the heat released by the motor during operation through the heat-collecting curved plate 32 and transfers it to the aluminum shell 1 through the sound insulation heat transfer box 31. Then, it dissipates heat outward through the heat dissipation structure on the aluminum shell 1, which can ensure that the motor shell has a strong sound insulation effect and a strong heat dissipation capacity.

[0035] The soundproof heat transfer box 31 is equipped with a partition frame 34, which includes several horizontal partitions 341, which are fixedly connected as one piece by longitudinal connecting pieces 342. Several symmetrically arranged liquid passage holes 343 are opened on the horizontal partitions 341. Based on the above structure, the internal space of the soundproof heat transfer box 31 can be divided into several layers, which can play a certain sound insulation role and avoid the opening of heat conduction gaps that would cause significant weak points in the overall sound insulation effect of the outer shell. The liquid passage holes 343 can allow the heat conduction medium to pass through, making the heat transfer more uniform and efficient.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An electric motor noise reduction housing, characterized by, include: The aluminum shell (1) has several composite sound insulation panels (2) arranged in a circular array inside, and there is a thermally conductive gap between adjacent composite sound insulation panels (2). A heat-conducting component (3) is installed in the heat-conducting gap and is attached to the composite sound insulation board (2); The composite sound insulation board (2) is composed of a panel (21), a first sound-absorbing board (22), a second sound-absorbing board (23), and an end heat-conducting sealing board (25). The heat-conducting component (3) includes a sound-insulating heat transfer box (31) installed in the heat-conducting gap, and its outer end face is connected to a heat-collecting curved plate (32) that is in contact with the surface of the composite sound insulation board (2).

2. A motor noise reduction housing according to claim 1, wherein: The first sound-absorbing plate (22) and the second sound-absorbing plate (23) are provided with honeycomb holes (24), and the panel (21) is provided with sound-absorbing holes (27). The honeycomb holes (24) on the first sound-absorbing plate (22) and the second sound-absorbing plate (23) are arranged alternately.

3. A motor noise reduction housing as claimed in claim 1, wherein: The panel (21) has an edge band (211) at its edge, and its end is sealed to the end heat-conducting sealing plate (25). The first sound-absorbing plate (22) and the second sound-absorbing plate (23) are located between the panel (21) and the end heat-conducting sealing plate (25), and a sound-absorbing cavity (26) is preset between the first sound-absorbing plate (22) and the second sound-absorbing plate (23).

4. A motor noise reduction housing as claimed in claim 1, wherein: The sound insulation heat transfer box (31) has a rectangular through groove, which is provided with a partition frame (34). Both ends of the sound insulation heat transfer box (31) are provided with a closed cover plate (35). The rectangular through groove is filled with a heat-conducting medium.

5. A motor noise reduction housing as claimed in claim 4, characterised in that: The separator (34) includes several transverse partitions (341), which are fixedly connected as a whole by longitudinal connecting pieces (342), and several symmetrically arranged liquid passage holes (343) are provided on the transverse partitions (341).

6. The motor noise reduction housing according to claim 2, characterized in that: The heat collection plate (32) is provided with a mating hole (33) corresponding to the sound absorption hole (27), wherein the diameter of the mating hole (33) is smaller than the diameter of the sound absorption hole (27).

7. The noise-reducing housing for an electric motor according to claim 1, characterized in that: The aluminum housing (1) has several symmetrically arranged mounting feet (11) at both ends, with threaded through holes for mounting.

8. The noise-reducing housing for an electric motor according to claim 1, characterized in that: The outer wall of the aluminum shell (1) is fixed with a plurality of main heat dissipation fins (12) and secondary heat dissipation fins (13) arranged in a circular array. The main heat dissipation fins (12) are positioned in a position corresponding to the position of the heat-conducting component (3), and the secondary heat dissipation fins (13) are located between the main heat dissipation fins (12).

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