Low-noise miniaturized power station

Abstract

The utility model relates to a low noise miniaturized power station which comprises a power station body, the rear end of the power station body is provided with an anti-mosquito ventilation window, the inner surface of the power station body is provided with a noise reduction shell, noise reduction grooves are evenly distributed in the inner surface of the noise reduction shell, and noise reduction plates are arranged in the noise reduction grooves. Noise reduction holes are evenly distributed in the middle of the noise reduction plate, the noise reduction plate comprises a first inclined face, the lower end of the first inclined face is connected with a second inclined face, and grooves are formed in the noise reduction holes. The noise reduction plate is provided with the first inclined surface and the second inclined surface, and the bent wall surface changes a straight airflow channel into a folded plate shape, so that the airflow is bent when passing through, the incidence angle of sound waves is increased, the sound absorption efficiency is improved, and a better noise reduction effect is achieved; by arranging a clamping groove and a rectangular clamping strip, the gauze element is convenient to disassemble; and by arranging the gauze element, mosquitoes are prevented from entering the power station body from gaps among the louver blades, and internal cleaning is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of miniaturized power stations, in particular to a low-noise miniaturized power station. Background Art

[0002] During the installation of box-type transformers, the land area of ​​new box-type transformers is limited due to the shortage of land. Box-type transformers are gradually developing in the direction of miniaturization. The ventilation windows of existing miniaturized power stations are used for ventilation and heat dissipation, and mosquitoes can easily enter the power station to reproduce. The environment inside the power station is poor, and in order to reduce the size, the noise reduction performance of the miniaturized power station is poor. Therefore, we designed a low-noise miniaturized power station.

[0003] Patent No. CN202121187460.1 is a Chinese utility model patent, which discloses a miniaturized box-type substation, including a box body and a partition; the box body is divided into a high-voltage chamber, multiple transformer chambers and multiple low-voltage chambers by a partition; a transformer is arranged in the transformer chamber, and the transformer is electrically connected to the high-voltage chamber and the low-voltage chamber respectively through cables; the transformer chamber and the low-voltage chamber are distributed in an upper and lower layer structure, and the high-voltage chamber is located on the side of the transformer chamber and the low-voltage chamber; a high-voltage outlet cabinet and a high-voltage incoming cabinet for external cables are arranged in the high-voltage chamber; by setting the transformer chamber and the low-voltage chamber The double-layer structure of the pressure chamber uses the longitudinal space to increase the capacity of the transformer, compact the equipment, reduce the footprint of the miniaturized box-type substation, and improve the installation flexibility of the miniaturized box-type substation; the modular design of the high-voltage chamber and the low-voltage chamber improves the working stability of the miniaturized box-type substation and shortens the maintenance time. However, the equipment has the following problems: first, it does not optimize the noise reduction performance of the miniaturized power station, which has an adverse effect on the surrounding environment; second, it does not have the function of ensuring ventilation and heat dissipation while preventing mosquitoes from flying in and breeding, and the internal environment of the power station is poor. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art. By arranging a first bevel and a second bevel, a snap-in groove, a rectangular snap-in strip, and a mesh on the noise reduction plate, the utility model solves the technical problem that the existing miniaturized power station lacks a noise reduction design while reducing the volume, and mosquitoes easily fly into the gaps between the heat dissipation and ventilation windows to survive and reproduce, resulting in a poor internal environment of the power station and affecting normal operation.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A low-noise miniaturized power station comprises a power station body, a mosquito-proof ventilation window is arranged at the front end of the power station body, a noise reduction shell is arranged on the inner surface of the power station body, noise reduction grooves are evenly distributed on the inner surface of the noise reduction shell, noise reduction plates are arranged in the grooves of the noise reduction grooves, noise reduction holes are evenly distributed in the middle of the noise reduction plate, and the noise reduction plate comprises a first inclined surface, the lower end of the first inclined surface is connected to a second inclined surface, and a groove is arranged in the hole of the noise reduction hole.

[0007] As a preferred embodiment, the angle between the first bevel and the second bevel is 120°, and the thickness of both is 60 mm.

[0008] As a preference, the first slope comprises a noise reduction layer, the left end of the noise reduction layer is connected to an ultra-fine glass wool layer, and the left end of the ultra-fine glass wool layer is provided with a glass cloth layer.

[0009] As a preference, the ends of the first and second inclined surfaces away from each other are both provided with mounting portions, and the mounting portions are adaptively connected to the surface of the noise reduction groove.

[0010] Preferably, the anti-mosquito ventilation window comprises an outer frame, the inner surface of the outer frame is evenly distributed with louvers, and a support bar is provided at the lower surface position of the inverted L-shaped upper edge of the louver.

[0011] Preferably, a snap-in groove is provided at the rear end of the outer frame, a rectangular clip strip is adapted to be connected in the snap-in groove, a fixing frame is provided at the front end of the rectangular clip strip, and a gauze is provided in the middle of the fixing frame.

[0012] Beneficial effects of the utility model:

[0013] (1) In the present invention, the first and second slopes are arranged on the noise reduction plate, and the curved wall changes the straight airflow channel into a folded plate shape, so that the airflow bends when passing through, thereby increasing the incident angle of the sound wave, improving the sound absorption efficiency, and achieving a better noise reduction effect.

[0014] (2) In the present invention, a snap-in groove and a rectangular snap-in strip are provided, which are snap-fitted to facilitate fixing the mesh on the outer frame, and are easy to disassemble and clean.

[0015] (3) In the present invention, a gauze net is provided to prevent mosquitoes from entering the interior of the power station body through the gaps between the louvers, thereby preventing mosquitoes from breeding inside the power station body and affecting the internal cleanliness.

[0016] In summary, the utility model has the advantages of simple structure, good noise reduction effect and mosquito protection, and is particularly suitable for the technical field of miniaturized power stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a structural diagram of a low-noise miniaturized power station.

[0019] Figure 2 This is a schematic diagram of the structure of the noise reduction shell.

[0020] Figure 3 It is a structural schematic diagram of the noise reduction plate part.

[0021] Figure 4 Schematic diagram of the front axle side structure of the mosquito-proof ventilation window.

[0022] Figure 5 Schematic diagram of the rear axle side structure of the mosquito-proof ventilation window. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings.

[0024] Embodiment 1

[0025] like Figures 1 to 5 As shown, the utility model provides a low-noise miniaturized power station, including a power station body 1, a mosquito-proof ventilation window 2 is provided at the front end of the power station body 1, which ensures ventilation and heat dissipation while preventing mosquitoes from entering the power station, and the inner surface of the power station body 1 is provided with a noise reduction shell 3 to provide basic support and installation space, and the inner surface of the noise reduction shell 3 is evenly distributed with noise reduction grooves 31, the shape of which is a T-shaped groove, providing an installation position for a noise reduction plate 32, so that a special-shaped area is formed between the noise reduction groove 31 and the noise reduction plate 32, so that the sound flow is refracted back and forth in the area, A noise reduction plate 32 is provided in the noise reduction groove 31, and noise reduction holes 33 are evenly distributed in the middle of the noise reduction plate 32, and the noise reduction plate 32 includes a No. 1 slope 321, and the lower end of the No. 1 slope 321 is connected to the No. 2 slope 322, so that the noise reduction plate 32 forms a bending plate, and the sound waves are bent at the wall position through the bending plate, thereby improving the sound absorption efficiency. A groove 34 is provided in the hole of the noise reduction hole 33, which increases the path of the sound wave through the noise reduction hole 22, increases the residence time of the sound wave, thereby increasing the sound absorption time of the noise reduction plate 32, and thus enhancing the noise reduction effect.

[0026] Further, if Figure 3As shown, the angle between the first slope 321 and the second slope 322 is 120°, and the thickness of both is 60 mm. The curved wall changes the straight airflow channel into a folded plate shape, causing the airflow to bend when passing through, increasing the incident angle of the sound wave, improving the sound absorption efficiency, and achieving a better noise reduction effect.

[0027] Further, if Figure 3 As shown, the No. 1 slope 321 includes a noise reduction layer 323, which is a micro-perforated sound-absorbing aluminum plate layer, providing basic support. Sound waves can penetrate into the noise reduction layer 323 along the micropores and rub against the edge of the hole to convert sound energy into heat energy. According to the law of conservation of energy, more heat energy means less sound energy. The left end of the noise reduction layer 323 is connected to an ultra-fine glass wool layer 324, which is a lightweight and flexible ultra-fine glass wool with a glass cloth surface. The overall sound resistance is increased and the weight is reduced to achieve a lightweight design. The left end of the ultra-fine glass wool layer 324 is provided with a glass cloth layer 325, which has the characteristics of high temperature resistance, corrosion resistance, and fire resistance, thereby extending the service life of the noise reduction board 32.

[0028] Furthermore, the ends of the first and second slopes 321 and 322 away from each other are each provided with a mounting portion 326, and the mounting portion 326 is adaptably connected to the surface of the noise reduction groove 31. The mounting portion 326 and the noise reduction groove 31 are fixed together by glue to prevent the noise reduction plate 32 from moving in the noise reduction groove 31.

[0029] Further, if Figure 4 As shown, the anti-mosquito ventilation window 2 includes an outer frame 21, and louvers 22 are evenly distributed on the inner surface of the outer frame 21. A tortuous ventilation duct is formed between the louvers 22, which has high waterproof performance while ventilating and dissipating heat. A support bar 23 is provided on the lower surface of the inverted L-shaped upper edge of the louver 22 to provide basic support for the louver 22 and prevent the louver 22 from sagging due to a too large span.

[0030] Further, if Figure 5 As shown, a snap-in groove 24 is provided at the rear end of the outer frame 21, and a rectangular clip strip 25 is adapted to be connected in the slot of the snap-in groove 24. The snap-in groove 24 and the rectangular clip strip 25 are snap-connected with each other, so that the gauze can be fixed on the outer frame, which is easy to disassemble and clean. A fixing frame 26 is provided at the front end of the rectangular clip strip 25, and a gauze 27 is provided in the middle of the fixing frame 26 to prevent mosquitoes from entering the interior of the power station body 1 through the gaps between the louvers 22, so as to prevent mosquitoes from breeding inside the power station body 1 and affecting internal cleaning.

[0031] Working process: The miniaturized power station emits vibration sound during operation, and part of the sound waves are transmitted through the noise reduction plate 32, entering the noise reduction groove 31 and the noise reduction plate 32 to form a special-shaped area; further, the sound waves change the straight airflow channel into a folded plate shape through the curved wall, causing the airflow to bend when passing through, increasing the incident angle of the sound waves, improving the sound absorption efficiency, and achieving a better noise reduction effect; at the same time, part of the sound waves enter the interior of the noise reduction plate 32 through the micro-perforations on the noise reduction layer 323. In this process, the sound waves rub against the channel to convert the sound energy into heat energy, thereby playing a role in noise reduction.

[0032] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0033] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0034] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A low-noise miniaturized power station, characterized in that: The invention comprises a power station body (1), wherein a mosquito-proof ventilation window (2) is provided at the front end of the power station body (1), and a noise reduction shell (3) is provided on the inner surface of the power station body (1), noise reduction grooves (31) are evenly distributed on the inner surface of the noise reduction shell (3), noise reduction plates (32) are provided in the grooves of the noise reduction grooves (31), noise reduction holes (33) are evenly distributed in the middle of the noise reduction plate (32), and the noise reduction plate (32) comprises a first inclined surface (321), the lower end of the first inclined surface (321) is connected to a second inclined surface (322), and a groove (34) is provided in the hole of the noise reduction hole (33).

2. A low-noise miniaturized power station according to claim 1, characterized in that: The included angle between the first inclined surface (321) and the second inclined surface (322) is 120°, and the thickness of both is 60 mm.

3. A low-noise miniaturized power station according to claim 1, characterized in that: The first inclined surface (321) comprises a noise reduction layer (323), the left end of the noise reduction layer (323) is connected to an ultra-fine glass wool layer (324), and the left end of the ultra-fine glass wool layer (324) is provided with a glass cloth layer (325).

4. A low-noise miniaturized power station according to claim 1, characterized in that: The ends of the first inclined surface (321) and the second inclined surface (322) away from each other are both provided with a mounting portion (326), and the mounting portion (326) is adaptively connected to the surface of the noise reduction groove (31).

5. A low-noise miniaturized power station according to claim 1, characterized in that: The anti-mosquito ventilation window (2) comprises an outer frame (21), the inner surface of the outer frame (21) is evenly distributed with louvers (22), and the lower surface of the inverted L-shaped upper edge of the louver (22) is provided with a support strip (23).

6. A low-noise miniaturized power station according to claim 5, characterized in that: The rear end of the outer frame (21) is provided with a snap-in groove (24), a rectangular snap-in strip (25) is adapted to be connected in the snap-in groove (24), a fixing frame (26) is provided at the front end of the rectangular snap-in strip (25), and a gauze net (27) is provided in the middle of the fixing frame (26).

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