Inverter with noise reduction function

Abstract

The utility model relates to an inverter with a noise reduction function, and aims to effectively reduce noise and vibration generated during the operation of the inverter through a noise reduction structure. The inverter comprises an inverter body, the inverter body is sleeved with a noise reduction structure, and the noise reduction structure comprises an outer frame and a plurality of evenly distributed damping plates; the damping plate is fixedly connected with a rotating shaft, the rotating shaft penetrates through the outer frame, and the damping plate is arranged in the outer frame; the inverter body is located in the outer frame and arranged on the damping plate. Wherein the damping plate is a rubber plate, and the damping plate is filled with sound-absorbing sponge. The design allows the inverter to move up and down under the constraint of the outer frame, the damping plate is in contact with the side plate of the outer frame, and the noise absorption effect is enhanced. Overall vibration of the inverter is effectively relieved through rotation and fluctuation effects of the damping plate, and noise pollution is reduced. Adjusting flexibility is provided through movable connection of the locking structure and the connecting rod, and the damping and sound absorbing effects are enhanced through the rubber material of the damping plate and the internal sound absorbing sponge.

Description

Technical Field

[0001] This utility model relates to the technical field of inverter auxiliary equipment, and in particular to an inverter with noise reduction function. Background Technology

[0002] An inverter is a power electronic conversion device whose core function is to convert direct current (DC) to alternating current (AC) to meet the power conversion needs of renewable energy systems such as solar and wind power. This device plays a crucial role in solar photovoltaic power generation systems, wind power generation systems, and electric vehicles. Inverters may generate noise during operation, primarily from internal mechanical vibrations, electromagnetic interference from the circuitry, and resonance of the overall structure. Furthermore, the vibrations and shaking of the inverter during operation may cause the external frame to move, generating additional noise pollution. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an inverter with noise reduction function, which solves the technical problem of noise pollution of the prior art inverter.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] This utility model embodiment provides an inverter with noise reduction function, including an inverter body, and a noise reduction structure is sleeved on the outside of the inverter body. The noise reduction structure includes an outer frame and several uniformly distributed shock-absorbing plates.

[0008] The damping plate is fixedly connected to a rotating shaft, which passes through the outer frame, and the damping plate is placed inside the outer frame.

[0009] The inverter body is located inside the outer frame and placed on a shock-absorbing plate;

[0010] The damping plate is a rubber plate filled with sound-absorbing sponge.

[0011] Preferably, an adjusting member is fixedly connected to one end of the rotating shaft, and the adjusting members on adjacent rotating shafts are located on different sides of the outer frame. Both ends of the rotating shaft are fitted with limiting members that are tightly attached to the outer wall of the outer frame, and the limiting members are located between the adjusting member and the outer frame.

[0012] Preferably, the damping plate and the rotating shaft are fixedly connected by bolts, and the two sides of the damping plate are bent to form angles.

[0013] Preferably, the adjusting component is generally teardrop-shaped, with the larger end of the adjusting component fixedly connected to the rotating shaft, and the adjusting components on the same side of the outer frame are connected by a connecting rod.

[0014] Preferably, the smaller ends of the adjustment members located on both sides of the outer frame face opposite directions.

[0015] Preferably, a first locking structure and a driving component are provided on both sides of the outer frame;

[0016] The drive component is fixedly mounted on the end of the rotating shaft near the end of the outer frame, at the end without the adjustment component installed;

[0017] The first locking structure is located on a rotating shaft adjacent to the driving component. One end of the structure is connected to an adjusting component on the rotating shaft, and the other end is connected to the driving component via a connecting rod.

[0018] Preferably, a first locking structure and a driving component are provided on both sides of the outer frame; the driving component is located on the end of the rotating shaft near the end of the outer frame where the adjusting component is not installed; the first locking structure is located on the rotating shaft adjacent to the driving component, one end of which is connected to the adjusting component on the rotating shaft, and the other end is connected to the driving component through a connecting rod.

[0019] The other side of the outer frame is provided with a second locking structure, which includes a locking plate and a driving component connected to the outer frame. The driving component is located on the end of the rotating shaft near the end of the outer frame where the adjustment component is not installed. The locking plate is correspondingly provided with the driving component on this side and is movably connected to the outer frame. The locking plate is provided with an arc-shaped limiting groove that runs through itself, and the limiting groove is connected to the driving component on this side by a locking nut.

[0020] Preferably, the driving component and the adjusting component have the same shape.

[0021] Preferably, the first locking structure is located at different ends on different sides of the outer frame; or

[0022] The first locking structure and the second locking structure are located on different sides and at different ends of the outer frame.

[0023] (III) Beneficial Effects

[0024] The beneficial effects of this utility model are as follows: The inverter with noise reduction function of this utility model absorbs the noise of the inverter by setting a noise reduction structure sleeved on the outside of the inverter. When the inverter body shakes, the shock-absorbing plate drives the rotating shaft to rotate. The rotation of the rotating shaft is restricted by the connecting rod and the adjusting component, thereby reducing the shaking of the inverter body and realizing shock absorption. In this process, the inverter contacts the side plate of the outer frame and the shock-absorbing plate to ensure that the shock-absorbing plate absorbs the noise. At the same time, when the inverter shakes, most of the shaking will be transferred to the shock-absorbing plate. Several adjacent shock-absorbing plates reduce the overall vibration of the inverter through their own fluctuations. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an inverter with noise reduction function according to the present invention;

[0026] Figure 2 This is a cross-sectional view of the outer frame of an inverter with noise reduction function according to this utility model;

[0027] Figure 3 This is a schematic diagram of a vibration damping plate structure for an inverter with noise reduction function according to this utility model;

[0028] Figure 4 This is a partially enlarged schematic diagram of the vibration damping plate of an inverter with noise reduction function according to this utility model.

[0029] [Explanation of Labels in the Attached Image]

[0030] 1. Inverter body; 11. First locking structure; 12. Card plate; 13. Limiting groove; 14. Drive component;

[0031] 2. Noise reduction structure; 21. Outer frame; 22. Shock absorber; 23. Rotating shaft; 24. Adjusting component; 25. Limiting component; 26. Connecting rod. Detailed Implementation

[0032] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," etc., are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0033] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0034] The specific implementation details are described in the following section.

[0035] like Figures 1 to 4As shown, an inverter with noise reduction function includes an inverter body 1 and a noise reduction structure 2 externally fitted thereon. The noise reduction structure 2 consists of an outer frame 21 and several evenly distributed damping plates 22. A rotating shaft 23 is fixedly connected to the damping plate 22, and an adjusting member 24 is fixedly connected to one end of the rotating shaft 23. The damping plate 22 is located inside the outer frame 21, and the rotating shaft 23 passes through the outer frame 21. The inverter body 1 is located inside the outer frame 21. The adjusting members 24 on adjacent rotating shafts 23 are located on different sides of the outer frame 21. Both ends of the rotating shaft 23 are fitted with limiting members 25 that are tightly attached to the outer wall of the outer frame 21. The limiting members 25 are located between the adjusting members 24 and the outer frame 21. The inverter body 1 is placed on the damping plate 22, and the damping plate 22 is fixedly connected to the rotating shaft 23 by bolts. One side of the damping plate 22 is bent upwards, and the other side is bent downwards, forming an angle. The adjusting component 24 is generally teardrop-shaped, with its larger end fixedly connected to the rotating shaft 23. A connecting rod 26 connects the adjusting components 24 on the same side of the outer frame 21.

[0036] It should be noted that the accompanying drawings of this embodiment only show the structure of the lower half of the noise reduction structure 2, while the upper half is the cover and is not shown.

[0037] In this embodiment, the present invention absorbs noise from the inverter body 1 by setting a noise reduction structure 2 on the outside of the inverter body 1. When the inverter body 1 shakes, the damping plate 22 causes the rotating shaft 23 to rotate. The rotation of the rotating shaft 23 is restricted by the connecting rod 26 and the adjusting member 24, thereby reducing the shaking of the inverter body 1 and achieving vibration reduction. This design ensures that the damping plate 22 is in contact with the side plate of the outer frame 21 to enhance the noise absorption effect. At the same time, when the inverter body 1 shakes, this design can transfer most of the shaking energy to the damping plate 22. Through the oscillation effect of several adjacent damping plates 22, the overall vibration of the inverter is effectively reduced, thereby reducing noise pollution.

[0038] Please continue reading. Figure 2This embodiment of the invention further optimizes the design of the noise reduction structure 2. The smaller ends of the adjusting members 24 located on both sides of the outer frame 21 face opposite directions, ensuring that the movement direction and amplitude of the damping plate 22 are controlled and preventing disordered rotation. Each end of both sides of the outer frame 21 is provided with a first locking structure 11 movably connected to the connecting rod 26. This design allows the damping plate 22 to fluctuate within a certain range to absorb and reduce the vibration of the inverter body 1. The locking structure 11 and the connecting rod 26 are connected to the same adjusting member 24, enhancing the stability of the structure and the flexibility of adjustment. The driving member 14 is fixedly installed at one end of the rotating shaft 23 near both ends of the outer frame 21 where the adjusting member 24 is not installed. One end of the first locking structure 11 is fixedly connected to the adjusting member 24 on the rotating shaft 23 adjacent to the driving member 14, and the other end is connected to the driving member 14 via a connecting rod.

[0039] Please see Figure 3 In another embodiment of this utility model, the first locking structure 11 on one side of the aforementioned outer frame 21 is replaced with a second locking structure. The second locking structure includes a locking plate 12, which is correspondingly disposed with the driving member 14 on the same side and movably connected to the outer frame 21. The locking plate 12 is provided with an arc-shaped limiting groove 13 that extends through itself. The limiting groove 13 is connected to the corresponding driving member 14 on the same side through a locking nut. The driving member 14 is connected to the connecting rod 26 on the same side through a connecting rod. The driving member 14 and the adjusting member 24 have the same shape. This design allows the driving member 14 to work in conjunction with the adjusting member 24 to achieve precise adjustment.

[0040] The locking structure is located on different sides and ends of the outer frame 21, while the clip 12 exists only on one side of the outer frame 21. This asymmetrical design helps to provide better adjustment flexibility and adaptability to different installation environments.

[0041] The damping plate 22 is made of rubber sheet and filled with sound-absorbing sponge. This combination not only provides good vibration damping but also enhances noise absorption. Through this design, the damping plate 22 can effectively absorb the noise generated by the inverter body 1 during operation, while reducing the impact of vibration on the surrounding environment.

[0042] In summary, the inverter of this invention, through its finely designed noise reduction structure 2, effectively controls and reduces the noise of the inverter body 1, thereby improving the inverter's operating efficiency and environmental adaptability. The integrated design of the linkage 26 ensures that all damping plates 22 move in the same direction, while the opposite orientation of the adjusting member 24 restricts the free rotation of the damping plate 22. The locking structure not only fixes the damping plate 22 but also allows for adjustment of the undulation angle of the damping plate 22 by adjusting the position of the locking nut in the limiting groove 13, thus achieving finer adjustment and better noise reduction.

[0043] In use, firstly, the inverter body 1 is placed inside the outer frame 21 of the noise reduction structure 2, ensuring that the inverter body 1 is located in the center of the noise reduction structure; next, several evenly distributed damping plates 22 are fixedly connected to the rotating shaft 23 with bolts, ensuring that the damping plates 22 are located inside the outer frame 21, and the rotating shaft 23 passes through the outer frame 21; then, the adjusting component 24 is installed, which is teardrop-shaped, with the larger end fixedly connected to the rotating shaft 23, and the adjusting components 24 on the same side of the outer frame 21 are fixedly connected with connecting rods 26 to ensure that the movement direction of all damping plates 22 is consistent; next, the limiting component 25 is installed, which is close to the outer wall of the outer frame 21 and located between the adjusting component 24 and the outer frame 21 to limit the rotation of the rotating shaft 23. Then, the first locking structure 11, which is movably connected to the connecting rod 26, is adjusted as needed to allow the damping plate 22 to fluctuate within a certain range to absorb and reduce the vibration of the inverter body 1. Furthermore, if necessary, the first locking structure 11 on one side can be replaced with a second locking structure, including a locking plate 12 and an arc-shaped limiting groove 13. Simultaneously, the fluctuation angle of the damping plate 22 can be changed by adjusting the position of the locking nut in the limiting groove 13, achieving finer adjustment and better noise reduction, thus providing better adjustment flexibility and adaptability to different installation environments. Finally, the inverter body 1 is started. When the inverter body 1 shakes, the damping plate 22 will drive the rotating shaft 23 to rotate. The rotation of the rotating shaft 23 is restricted by the connecting rod 26 and the adjusting component 24, thereby reducing the shaking of the inverter body 1 and achieving vibration reduction. At the same time, the damping plate 22 is made of rubber and filled with sound-absorbing sponge. This combination not only provides a good vibration reduction effect, but also enhances the ability to absorb noise, effectively controls the noise of the inverter body 1 and reduces the impact of vibration on the surrounding environment, improving the inverter's operating efficiency and environmental adaptability.

[0044] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0046] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An inverter with noise reduction function, comprising an inverter body (1), characterized in that: The inverter body (1) is fitted with a noise reduction structure (2), which includes an outer frame (21) and several uniformly distributed damping plates (22). The damping plate (22) is fixedly connected to a rotating shaft (23), which passes through the outer frame (21), and the damping plate (22) is placed inside the outer frame (21); The inverter body (1) is located inside the outer frame (21) and placed on the shock-absorbing plate (22); The damping plate (22) is a rubber plate filled with sound-absorbing sponge.

2. An inverter with noise reduction function according to claim 1, characterized in that: One end of the rotating shaft (23) is fixedly connected to an adjusting member (24). The adjusting members (24) on adjacent rotating shafts (23) are located on different sides of the outer frame (21). Both ends of the rotating shaft (23) are fitted with limiting members (25) that are tightly attached to the outer wall of the outer frame (21). The limiting members (25) are located between the adjusting member (24) and the outer frame (21).

3. An inverter with noise reduction function according to claim 1, characterized in that: The damping plate (22) and the rotating shaft (23) are fixedly connected by bolts, and the two sides of the damping plate (22) are bent to form angles.

4. An inverter with noise reduction function according to claim 2, characterized in that: The adjusting component (24) is generally teardrop-shaped. The larger end of the adjusting component (24) is fixedly connected to the rotating shaft (23). The adjusting components (24) on the same side of the outer frame (21) are connected by a connecting rod (26).

5. An inverter with noise reduction function according to claim 4, characterized in that: The smaller ends of the adjusting members (24) located on both sides of the outer frame (21) are oriented in opposite directions.

6. An inverter with noise reduction function according to claim 5, characterized in that: The outer frame (21) is provided with a first locking structure (11) and a driving component (14) on both sides. The drive component (14) is fixedly installed at one end of the shaft (23) near the end of the outer frame (21) where the adjustment component (24) is not installed; The first locking structure (11) is set on the rotating shaft (23) adjacent to the driving member (14), one end of which is connected to the adjusting member (24) on the rotating shaft (23), and the other end is connected to the driving member (14) through a connecting rod.

7. An inverter with noise reduction function according to claim 5, characterized in that: The outer frame (21) has a first locking structure (11) and a driving member (14) on one side; the driving member (14) is located at one end of the rotating shaft (23) near the end of the outer frame (21) where the adjustment member (24) is not installed; the first locking structure (11) is located on the rotating shaft (23) adjacent to the driving member (14), one end of which is connected to the adjustment member (24) on the rotating shaft (23), and the other end is connected to the driving member (14) through a connecting rod; The other side of the outer frame (21) is provided with a second locking structure, which includes a locking plate (12) and a driving member (14) connected to the outer frame (21). The driving member (14) is located at one end of the rotating shaft (23) near the end of the outer frame (21) where the adjustment member (24) is not installed. The locking plate (12) is correspondingly provided with the driving member (14) on this side and is movably connected to the outer frame (21). The locking plate (12) is provided with an arc-shaped limiting groove (13) that runs through itself. The limiting groove (13) is connected to the driving member (14) on this side by a locking nut. The driving member (14) is connected to the connecting rod (26) on this side by a connecting rod.

8. An inverter with noise reduction function according to claim 6 or 7, characterized in that: The drive component (14) and the adjustment component (24) have the same shape.

9. An inverter with noise reduction function according to claim 7, characterized in that: The first locking structure (11) is located on different sides and at different ends of the outer frame (21); or The first locking structure (11) and the second locking structure are located on different sides and at different ends of the outer frame (21).

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