Noise reduction device of fixed-frequency air conditioner

Abstract

The utility model provides a noise reduction device of a fixed-frequency air conditioner, which comprises an air conditioner outdoor unit, a protective cover is sleeved outside the air conditioner outdoor unit, and a noise reduction mechanism is arranged inside the protective cover; the noise reduction mechanism comprises noise collectors connected to a plurality of vertex angles in the protective cover and a ventilation assembly arranged at one end of the protective cover; the ventilation assembly comprises a ventilation hole connected to one side of the protective cover, a temperature sensor connected to the side, close to the ventilation hole, of the protective cover, and a plurality of silencing plates connected to the interior of the ventilation hole in one side of the protective cover, and the silencing plates are sequentially arranged from top to bottom. Due to the arrangement of the silencing felt in the protective cover, noise generated by the air conditioner outdoor unit is absorbed, the silencing plate is supported through the supporting strips, and the noise is absorbed at the ventilation holes through the silencing plate.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of air conditioner noise reduction, and in particular to a noise reduction device for a fixed-frequency air conditioner. Background Art

[0002] A fixed-frequency air conditioner is a unit used to provide air temperature control for a space area. During the use of the air conditioner, in order to ensure the user experience, a noise reduction device is often required to reduce noise.

[0003] The noise reduction device of a traditional fixed-frequency air conditioner often absorbs the noise generated by the air conditioner outdoor unit through a protective cover. In this method, in order to maintain the heat dissipation of the air conditioner outdoor unit, heat dissipation holes have to be opened, which makes it easy for noise to be emitted from the heat dissipation holes, affecting the noise reduction effect of the air conditioner. Utility Model Content

[0004] The utility model mainly provides a noise reduction device for a fixed-frequency air conditioner to solve the technical problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A noise reduction device for a fixed-frequency air conditioner, comprising an air conditioner outdoor unit, the air conditioner outdoor unit is provided with a protective cover on the outside, and a noise reduction mechanism is provided inside the protective cover;

[0007] The noise reduction mechanism includes noise collectors connected to multiple corners inside the protective cover, and a ventilation assembly provided at one end of the protective cover;

[0008] The ventilation assembly includes a ventilation hole connected to one side of the protective cover, a temperature sensor connected to the side of the protective cover close to the ventilation hole, and a plurality of silencer plates connected to the inside of the ventilation hole on one side of the protective cover, wherein the plurality of silencer plates are arranged in sequence from top to bottom.

[0009] Furthermore, multiple inner wall surfaces of the protective cover are connected with sound-absorbing felt.

[0010] Furthermore, support bars are provided on both sides of the ventilation hole, the support bars are connected to the inside of the protective cover, and the support bars are rotatably connected to the silencer plate through a rotating shaft.

[0011] Furthermore, the support bar is a hollow structure, and a first gear coaxially arranged with the silencer plate is provided inside the support bar, adjacent first gears are connected by a second gear, and the second gear is connected to the support bar through a rotating shaft.

[0012] Furthermore, a motor is connected to the outer surface of one of the support bars, and an output shaft of the motor is connected to the adjacent first gear.

[0013] Furthermore, a sound wave generator is plugged into the top of the protective cover.

[0014] Furthermore, a microcontroller is connected inside the protective cover, and the microcontroller is electrically connected to the motor, the temperature sensor, the noise collector and the sound wave generator.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] Firstly, the utility model absorbs the noise generated by the air conditioner outdoor unit by arranging the sound-absorbing felt in the protective cover, provides support for the sound-absorbing board by the support strip, and absorbs the noise at the ventilation hole by the sound-absorbing board.

[0017] Secondly, when the outdoor unit of the air conditioner is turned off or the temperature inside the protective cover is low, the utility model closes the ventilation holes through the synchronous rotation of multiple silencer plates, thereby assisting the silencer felt to absorb noise.

[0018] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 It is a cross-sectional view of the support strip of the utility model.

[0022] In the figure: 1. air conditioner outdoor unit; 2. protective cover; 21. sound-absorbing felt; 22. sound wave generator; 3. noise reduction mechanism; 31. noise collector; 32. ventilation assembly; 321. ventilation hole; 322. sound-absorbing plate; 323. temperature sensor; 325. second gear; 326. motor; 327. support bar; 33. microcontroller. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] For examples, please refer to the attached Figure 1-3 A noise reduction device for a fixed-frequency air conditioner comprises an air conditioner outdoor unit 1, a protective cover 2 is provided on the outside of the air conditioner outdoor unit 1, and a noise reduction mechanism 3 is provided inside the protective cover 2;

[0027] The noise reduction mechanism 3 includes a noise collector 31 connected to multiple corners inside the protective cover 2, and a ventilation component 32 provided at one end of the protective cover 2;

[0028] The ventilation assembly 32 includes a ventilation hole 321 connected to one side of the protective cover 2, a temperature sensor 323 connected to the side of the protective cover 2 close to the ventilation hole 321, and a plurality of silencer plates 322 connected to the inside of the ventilation hole 321 on one side of the protective cover 2, wherein the plurality of silencer plates 322 are arranged in sequence from top to bottom.

[0029] For details, please refer to the attached Figure 1 and 2 , multiple inner wall surfaces of the protective cover 2 are connected with sound-absorbing felts 21;

[0030] Support bars 327 are provided on both sides of the ventilation hole 321. The support bars 327 are connected to the inside of the protective cover 2. The support bars 327 are rotatably connected to the muffler plate 322 via a rotating shaft.

[0031] The support bar 327 is a hollow structure, and a first gear 324 is provided inside the support bar 327 and is coaxially arranged with the muffler plate 322. Adjacent first gears 324 are connected by second gears 325, and the second gear 325 is connected to the support bar 327 via a rotating shaft.

[0032] It should be noted that, in this embodiment, the protective cover 2 absorbs the noise generated by the air conditioner outdoor unit 1 by providing the sound-absorbing felt 21;

[0033] Furthermore, the support bar 327 is used to provide support for the muffler plate 322, and the muffler plate 322 can be rotated by setting the rotating shaft;

[0034] Furthermore, since a second gear 325 is provided between two adjacent first gears 324, the second gear 325 meshes with the first gear 324, so that when one of the first gears 324 rotates, multiple first gears 324 rotate synchronously, and since the first gear 324 and the silencer plate 322 are coaxially arranged, the silencer plate 322 is driven to rotate synchronously, so that the air outlet direction of the air conditioner outdoor unit 1 can be adjusted through the silencer plate 322.

[0035] For details, please refer to the attached Figure 2 and 3 , a motor 326 is connected to the outer surface of one of the support bars 327, and an output shaft of the motor 326 is connected to an adjacent first gear 324;

[0036] It should be noted that, in this embodiment, the motor 326 drives the first gear 324 connected to its output shaft to rotate.

[0037] For details, please refer to the attached Figure 2 and 3 , a sound wave generator 22 is plugged into the top of the protective cover 2;

[0038] The protective cover 2 is internally connected with a microcontroller 33, and the microcontroller 33 is electrically connected with the motor 326, the temperature sensor 323, the noise collector 31 and the sound wave generator 22;

[0039] It should be noted that, in this embodiment, the sound wave generator 22 emits a sound wave with the same frequency and opposite phase to the identified noise to eliminate the noise of the air conditioner outdoor unit 1;

[0040] Furthermore, the noise generated by the air conditioner outdoor unit 1 is collected by the noise collector 31, and the noise information is processed by the microcontroller 33, so that the microcontroller 33 controls the sound wave generator 22 connected thereto to work;

[0041] The temperature sensor 323 of model JX90614 measures the internal temperature of the protective cover 2, and determines whether the temperature exceeds a threshold value through the microcontroller 33 connected to the temperature sensor 323.

[0042] The specific operation mode of the utility model is as follows:

[0043] When the air conditioner outdoor unit 1 is used, the noise generated by the air conditioner outdoor unit 1 is absorbed by the sound-absorbing felt 21 in the protective cover 2, and the sound-absorbing plate 322 is supported by the support bar 327, so that the sound-absorbing plate 322 absorbs the noise at the ventilation hole 321;

[0044] When the air conditioner outdoor unit 1 is turned off or the temperature inside the protective cover 2 is low, the ventilation holes 321 are closed by synchronously rotating the plurality of sound-absorbing plates 322 , thereby assisting the sound-absorbing felt 21 in absorbing noise.

[0045] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A noise reduction device for a fixed-frequency air conditioner, comprising an air conditioner outdoor unit (1), characterized in that: The air conditioner outdoor unit (1) is provided with a protective cover (2) on its exterior, and a noise reduction mechanism (3) is provided inside the protective cover (2); The noise reduction mechanism (3) comprises a noise collector (31) connected to a plurality of vertex corners inside the protective cover (2), and a ventilation assembly (32) arranged at one end of the protective cover (2); The ventilation assembly (32) comprises a ventilation hole (321) connected to one side of the protective cover (2), a temperature sensor (323) connected to the side of the protective cover (2) close to the ventilation hole (321), and a plurality of silencer plates (322) connected to the inside of the ventilation hole (321) on one side of the protective cover (2), wherein the plurality of silencer plates (322) are arranged in sequence from top to bottom.

2. A noise reduction device for a fixed-frequency air conditioner according to claim 1, characterized in that: Multiple inner wall surfaces of the protective cover (2) are connected with sound-absorbing felts (21).

3. The noise reduction device for a fixed-frequency air conditioner according to claim 1, characterized in that: Support bars (327) are provided on both sides of the ventilation hole (321); the support bars (327) are connected to the inside of the protective cover (2); and the support bars (327) are rotatably connected to the silencer plate (322) via a rotating shaft.

4. The noise reduction device for a fixed-frequency air conditioner according to claim 3, characterized in that: The support bar (327) is a hollow structure, and a first gear (324) coaxially arranged with the muffler plate (322) is provided inside the support bar (327), and adjacent first gears (324) are connected via second gears (325), and the second gear (325) is connected to the support bar (327) via a rotating shaft.

5. The noise reduction device for a fixed-frequency air conditioner according to claim 4, characterized in that: A motor (326) is connected to the outer surface of one of the support bars (327), and an output shaft of the motor (326) is connected to an adjacent first gear (324).

6. The noise reduction device for a fixed-frequency air conditioner according to claim 1, characterized in that: A sound wave generator (22) is plugged into the top end of the protective cover (2).

7. The noise reduction device for a fixed-frequency air conditioner according to claim 1, characterized in that: The protective cover (2) is internally connected to a microcontroller (33), and the microcontroller (33) is electrically connected to a motor (326), a temperature sensor (323), a noise collector (31), and a sound wave generator (22).

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