Noise reduction structure of voltage stabilizer

Abstract

This utility model proposes a noise reduction structure for a voltage regulator, comprising: a first housing, a fixing component, an adjusting component, two sealing assemblies, and multiple sound-absorbing cotton pieces. The first housing has a step. The fixing component includes a plate and two spring plates, wherein the plate has two symmetrically symmetrically formed through slots, and the two spring plates are symmetrically arranged between the plate and the first housing in an arc-shaped structure. The adjusting component is disposed between the two spring plates. The two sealing assemblies are pivotally connected to the first housing, and the sealing assemblies are in contact with the step. The multiple sound-absorbing cotton pieces are adhered to the inner walls of the first housing and the sealing assemblies. The noise reduction structure of this utility model reduces noise pollution by combining noise reduction at the sound source and along the sound propagation path.

Description

Technical Field

[0001] This utility model relates to the field of voltage regulator technology, and in particular to a noise reduction structure for a voltage regulator. Background Technology

[0002] Mechanical voltage regulators use a servo motor to drive carbon brushes to adjust the voltage. The motor produces friction noise or a motor rotation sound when it is running, which is more noticeable when the load changes frequently. In addition, the internal transformer or inductor coil may produce a low-frequency "humming" sound (similar to the sound of a traditional transformer) due to electromagnetic vibration when the current changes, which is more prominent in older or low-quality equipment.

[0003] In related technologies, noise is typically blocked by attaching sound-absorbing cotton to the inner wall of the voltage regulator. However, the above-mentioned noise reduction methods have limited effectiveness and are prone to causing noise pollution. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this utility model is to propose a noise reduction structure for a voltage regulator, which reduces noise pollution by combining noise reduction at the sound source and during the sound propagation process.

[0006] To achieve the above objectives, the first aspect of this utility model proposes a noise reduction structure for a voltage regulator, comprising: a first housing, a fixing component, an adjusting component, two sealing components, and multiple sound-absorbing cotton pieces. The first housing has a step. The fixing component includes a plate and two spring plates, wherein the plate has two symmetrically symmetrically formed through slots, and the two spring plates are symmetrically arranged between the plate and the first housing, with the spring plates arranged in an arc shape. The adjusting component is disposed between the two spring plates. The two sealing components are pivotally connected to the first housing, and the sealing components are in contact with the step. The multiple sound-absorbing cotton pieces are adhered to the inner walls of the first housing and the sealing components.

[0007] In addition, the noise reduction structure of the voltage regulator proposed above according to this utility model may also have the following additional technical features:

[0008] Specifically, the adjusting assembly includes two single-ended screws, a threaded sleeve, and two rubber washers. The two single-ended screws pass through the corresponding spring plates, the threaded sleeves are sleeved on the outside of the two single-ended screws, and the two rubber washers are located between the corresponding single-ended screws and the spring plates.

[0009] Specifically, the sealing assembly includes a connecting rod and a cover body, wherein one end of the connecting rod is pivotally connected to the first housing via a first pivot, and the other end of the connecting rod is pivotally connected to the cover body via a second pivot; the cover body fits against the step.

[0010] Specifically, the surface of the sound-absorbing cotton has multiple grooves.

[0011] Specifically, the cap assembly is equipped with a latch.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The noise reduction structure of the voltage regulator of the present invention reduces noise by arranging a spring plate and adjustment component at the sound source and arranging sound-absorbing cotton in the path of sound propagation, thereby reducing the occurrence of noise pollution.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a cross-sectional schematic diagram of the noise reduction structure of a voltage regulator according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the connection structure between the noise reduction structure cover assembly and the first housing of a voltage regulator according to an embodiment of the present invention.

[0017] Reference numerals: 1. First housing; 11. Step; 2. Fixing assembly; 21. Plate; 22. Through groove; 23. Spring plate; 3. Adjusting assembly; 31. Single-headed screw; 32. Threaded sleeve; 33. Rubber washer; 4. Cover assembly; 41. Connecting rod; 42. Cover; 5. Sound-absorbing cotton; 51. Groove; 6. Lock. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0019] The noise reduction structure of the voltage regulator according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0020] like Figures 1-2As shown, the noise reduction structure of the voltage regulator in this embodiment of the present invention may include: a first housing 1, a fixing component 2, an adjusting component 3, two sealing components 4, and multiple sound-absorbing cotton pieces 5.

[0021] The first housing 1 is provided with a step 11.

[0022] The fixing component 2 includes a plate 21 and two spring plates 23. The plate 21 has two through slots 22 symmetrically opened on it, and the two spring plates 23 are symmetrically arranged between the plate 21 and the first housing 1. The spring plates 23 are arranged in an arc shape.

[0023] The adjusting component 3 is positioned between the two spring plates 23.

[0024] It is understandable that the adjusting component 3 restricts the two spring plates 23. When the spring plates 23 are compressed and deformed, the adjusting component 3 can limit this deformation, thereby achieving the effect of shock absorption and buffering.

[0025] The two capping assemblies 4 are pivotally connected to the first housing 1, and the capping assemblies 4 are in contact with the step 11.

[0026] Multiple pieces of sound-absorbing cotton 5 are bonded to the inner walls of the first housing 1 and the cover assembly 4.

[0027] It should be noted that the first housing 1 and the cover assembly 4 can form a relatively closed structure, which can block noise to a certain extent.

[0028] Specifically, the servo motor or transformer used in the voltage regulator is mounted on the board 21 and secured by a fastener through the through slot 22.

[0029] In the later stages of use, some noise comes from the servo motor drive carbon brush regulating voltage, which produces friction noise or motor rotation noise when the motor is running, or the internal transformer or inductor coil may produce a low-frequency "humming" sound due to electromagnetic vibration when the current changes. Another part of the noise comes from the mechanical vibration of the running parts.

[0030] The mechanical vibration is transmitted outward, and the spring plate 23 is deformed under pressure. The adjusting component 3 can limit this deformation, thereby achieving the effect of shock absorption and buffering, and thus reducing the generation of noise at the sound source.

[0031] Sound-absorbing cotton 5 can absorb noise during sound propagation, thereby reducing noise pollution by combining noise reduction at the sound source and during sound propagation.

[0032] In one embodiment of this utility model, such as Figure 1 As shown, the adjustment assembly 3 includes two single-headed screws 31, a threaded sleeve 32, and two rubber washers 33.

[0033] Two single-ended screws 31 pass through the corresponding spring plates 23, and threaded sleeves 32 are fitted on the outside of the two single-ended screws 31. Two rubber washers 33 are located between the corresponding single-ended screws 31 and the spring plates 23.

[0034] Specifically, when the spring plate 23 deforms, the adjusting component 3 can limit the deformation of the spring plate 23 to achieve the purpose of buffering. After long-term use, the spring plate 23 is more prone to deformation. At this time, the two single-headed screws 31 can be brought closer by rotating the threaded sleeve 32, thereby forcing the curvature of the two spring plates 23 to decrease, increasing their hardness, increasing their elastic potential energy, and extending their service life.

[0035] In one embodiment of this utility model, such as Figure 2 As shown, the capping assembly 4 includes a connecting rod 41 and a cap body 42.

[0036] One end of the connecting rod 41 is pivotally connected to the first housing 1 via a first rotating shaft, and the other end of the connecting rod 41 is pivotally connected to the cover 42 via a second rotating shaft. The cover 42 is in contact with the step 11.

[0037] In one embodiment of this utility model, such as Figure 2 As shown, a latch 6 is installed on the capping assembly 4.

[0038] It is understandable that the cover assembly 4 is located above the first housing 1. When the cover 42 is opened, the cover 42 opens with the connecting rod 41 as the diameter, so that the top of the first housing 1 is completely open, which makes it convenient for subsequent operators to inspect the inside of the voltage regulator.

[0039] In one embodiment of this utility model, such as Figure 2 As shown, the surface of the sound-absorbing cotton 5 has multiple grooves 51.

[0040] It is understandable that setting grooves 51 on the sound-absorbing cotton 5 can increase the area of ​​the sound-absorbing cotton 5, and the sound waves can be weakened by reflecting back and forth in the grooves 51, thereby achieving the purpose of noise reduction.

[0041] In summary, the noise reduction structure of the voltage regulator of this utility model reduces noise pollution by arranging a spring plate and adjustment components at the sound source and arranging sound-absorbing cotton along the sound propagation path.

[0042] In the description of this specification, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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. 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.

[0044] 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 changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A noise reduction structure for a voltage regulator, characterized in that, include: The system comprises a first housing (1), a fixing component (2), an adjusting component (3), two sealing components (4), and multiple pieces of sound-absorbing cotton (5), wherein, The first housing (1) is provided with a step (11); The fixing component (2) includes a plate (21) and two spring plates (23), wherein, Two through slots (22) are symmetrically opened on the plate (21), and two spring plates (23) are symmetrically arranged between the plate (21) and the first housing (1). The spring plates (23) are arranged in an arc shape. The adjustment component (3) is disposed between the two spring plates (23); The two capping assemblies (4) are pivotally connected to the first housing (1) respectively, and the capping assemblies (4) are in contact with the step (11); Multiple pieces of the sound-absorbing cotton (5) are bonded to the inner walls of the first housing (1) and the sealing assembly (4).

2. The noise reduction structure of the voltage regulator according to claim 1, characterized in that, The adjusting assembly (3) includes two single-headed screws (31), a threaded sleeve (32), and two rubber washers (33), wherein, The two single-ended screws (31) pass through the corresponding spring plates (23) respectively, the threaded sleeve (32) is sleeved on the outside of the two single-ended screws (31), and the two rubber washers (33) are located between the corresponding single-ended screws (31) and the spring plates (23) respectively.

3. The noise reduction structure of the voltage regulator according to claim 1, characterized in that, The sealing assembly (4) includes a connecting rod (41) and a cover (42), wherein, One end of the connecting rod (41) is pivotally connected to the first housing (1) via a first rotating shaft, and the other end of the connecting rod (41) is pivotally connected to the cover (42) via a second rotating shaft; The cover (42) fits into the step (11).

4. The noise reduction structure of the voltage regulator according to claim 1, characterized in that, The surface of the sound-absorbing cotton (5) has multiple grooves (51).

5. The noise reduction structure of the voltage regulator according to claim 1, characterized in that, The capping assembly (4) is equipped with a latch (6).

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