Ducted air conditioner and air conditioner

Abstract

The utility model discloses a duct type air conditioner and an air conditioner. The duct type air conditioner comprises a shell, a first mounting area, a second mounting area and a third mounting area are sequentially arranged in the shell; the heat exchanger is arranged in the first mounting area; the fan is arranged in the third mounting area, and an air inlet of the fan faces the second mounting area; the acoustic superstructure is located in the second installation area and located on the periphery of the air inlet of the fan, and an air passing channel is formed among the sound absorption face of the acoustic superstructure, the side, facing the second installation area, of the heat exchanger and the air inlet of the fan. When the wind pipe machine runs, indoor air flows to the wind passing channel after being subjected to heat exchange through the heat exchanger and then is blown back into a room through the fan, the acoustic superstructure is located on the periphery of the air inlet of the fan, so that the acoustic superstructure does not affect air inlet of the air inlet of the fan, and in the process that a wind beam passes through the wind passing channel, the wind beam is not affected. The noise in the wind beam can enter the acoustic superstructure from the sound absorption surface of the acoustic superstructure to reduce the noise, so that the ducted air conditioner has the advantages of low noise, large air output and good overall performance.

Description

Technical Field

[0001] The utility model relates to air conditioning equipment technology, and more specifically, to a duct machine and an air conditioner. Background Art

[0002] Since the mainstream solution of ducted air conditioners currently uses centrifugal fans, compared with the cross-flow fans used in wall mounted air conditioners, centrifugal fans have certain disadvantages in terms of noise. Especially in the sleeping environment of small bedrooms, the noise generated by the operation of ducted air conditioners has become a top problem that troubles manufacturers and users.

[0003] However, the structure of the duct air conditioner is relatively simple, and the optimization of conventional duct air conditioners has entered a bottleneck stage. How to further reduce the noise generated by the operation of the duct air conditioner is a technical problem that technical personnel in this field have been unable to solve. Utility Model Content

[0004] Analysis and research have found that acoustic metamaterials have good performance in sound absorption. For example, the patent document with publication number CN110793181A mentions that placing an acoustic metastructure at the air outlet can achieve a certain noise reduction effect. The larger the volume of the acoustic metastructure, the better the noise reduction effect of the duct air conditioner. However, this will greatly reduce the air outlet of the duct air conditioner, causing a significant decrease in the performance of the duct air conditioner.

[0005] The embodiment of the utility model provides an air duct machine, which generates little noise in operation, has a large air output and good overall performance.

[0006] The embodiment of the utility model also provides an air conditioner.

[0007] The duct air conditioner provided by the embodiment of the utility model comprises: a shell, in which a first installation area, a second installation area and a third installation area are sequentially arranged; a heat exchanger is arranged in the first installation area; a fan is arranged in the third installation area, and the air inlet of the fan faces the second installation area; and an acoustic superstructure is located in the second installation area and is located at the periphery of the air inlet of the fan, and an air passage is formed between the sound absorbing surface of the acoustic superstructure, the side of the heat exchanger facing the second installation area and the air inlet of the fan.

[0008] In some exemplary embodiments, the acoustic superstructure includes a first acoustic superstructure located on one side of the air inlet of the fan in a horizontal direction and / or a second acoustic superstructure located on the other side of the air inlet of the fan.

[0009] In some exemplary embodiments, one side of the air inlet of the fan in the horizontal direction is the left side of the air inlet of the fan, and the other side of the air inlet of the fan in the horizontal direction is the right side of the air inlet of the fan.

[0010] In some exemplary embodiments, the acoustic superstructure includes a third acoustic superstructure located vertically below an air inlet of the fan.

[0011] In some exemplary embodiments, the inner bottom of the shell has a water receiving tray, the water receiving tray includes the first installation area and the second installation area, and the third acoustic superstructure and the water receiving tray are an integrated structure.

[0012] In some exemplary embodiments, the acoustic superstructure includes a fourth acoustic superstructure located vertically above an air inlet of the fan.

[0013] In some exemplary embodiments, the fan comprises a centrifugal fan.

[0014] In some exemplary embodiments, the fan includes a plurality of centrifugal fans arranged in parallel, a side of the heat exchanger facing the second installation area is horizontally separated into a plurality of wind passing areas by the acoustic superstructure, and the wind passing duct includes a plurality of air inlets of the plurality of centrifugal fans, a plurality of the wind passing ducts, and a plurality of the wind passing areas corresponding one to one.

[0015] In some exemplary embodiments, the wall thickness of the acoustic superstructure is 20 mm to 30 mm.

[0016] In some exemplary embodiments, the acoustic superstructure has a sound absorption bandwidth of 500 Hz to 1600 Hz.

[0017] The air conditioner provided in the embodiment of the utility model includes the duct air conditioner described in any one of the above embodiments.

[0018] The technical solution provided by the embodiment of the utility model is that when the duct fan is running, the indoor air passes through the heat exchanger for heat exchange and then flows to the wind duct, then passes through the inside of the fan from the air inlet of the fan, and is blown back into the room from the air outlet of the fan. Since the acoustic superstructure is located at the periphery of the air inlet of the fan, the acoustic superstructure will not affect the air intake of the fan at the air inlet, and in the process of the wind beam passing through the wind duct, the noise in the wind beam will enter the inside of the acoustic superstructure from the sound-absorbing surface of the acoustic superstructure for noise reduction. Therefore, the duct fan generates little noise in operation, has a large air output, and has good overall performance.

[0019] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0021] Figure 1 A schematic diagram of the structure of a duct machine provided in some embodiments of the present application;

[0022] Figure 2 for Figure 1 The schematic diagram of the partial structure of the duct machine shown, the top cover is not shown;

[0023] Figure 3 and Figure 4 for Figure 2 The partial structural diagram of the duct machine is shown, and the heat exchanger is not shown;

[0024] Figure 5 for Figure 3 and Figure 4 Schematic diagram of the structure of the middle water tray.

[0025] The corresponding relationship between the reference numerals and the component names is as follows:

[0026] 100 housing, 110 water tray, 111 first installation area, 112 second installation area, 120 third installation area, 130 air duct, 200 heat exchanger, 210 air duct, 300 centrifugal fan, 410 first acoustic superstructure, 420 second acoustic superstructure, 430 third acoustic superstructure, 450 sound hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the embodiments of the utility model will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0028] The duct machine provided by the utility model embodiment is as follows Figures 1 to 4 As shown, it includes: a shell 100, wherein a first installation area 111, a second installation area 112 and a third installation area 120 are sequentially arranged inside the shell 100; a heat exchanger 200, wherein the heat exchanger 200 is arranged in the first installation area 111; a fan, which is arranged in the third installation area 120, wherein the air inlet of the fan faces the second installation area 112, and the air outlet of the fan is arranged to be connected with the room; and an acoustic superstructure (also called an acoustic metamaterial), wherein the acoustic superstructure is located in the second installation area 112 and is located at the periphery of the air inlet of the fan, and an air passage 130 is formed between the sound absorbing surface of the acoustic superstructure, the side of the heat exchanger 200 facing the second installation area 112, and the air inlet of the fan.

[0029] When the duct air conditioner is running, the indoor air passes through the heat exchanger 200 for heat exchange and then flows to the air duct 130. Then, the air passes through the inside of the fan from the air inlet of the fan and is blown back into the room from the air outlet of the fan. Since the acoustic superstructure is located at the periphery of the air inlet of the fan, the acoustic superstructure will not affect the air intake of the fan. Moreover, when the wind beam passes through the air duct 130, the noise in the wind beam will enter the inside of the acoustic superstructure from the sound-absorbing surface of the acoustic superstructure for noise reduction. Therefore, the noise generated by the duct air conditioner in operation is small, the air output is large, and the overall performance of the machine is good.

[0030] In some exemplary embodiments, the fan includes a centrifugal fan 300 (see Figures 2 to 4 The acoustic superstructure includes a first acoustic superstructure 410 located on the left side of the air inlet of the fan in the horizontal direction and a second acoustic superstructure 420 located on the right side of the air inlet of the fan in the horizontal direction; in addition, the acoustic superstructure also includes a third acoustic superstructure 430 located on the lower side of the air inlet of the fan in the vertical direction and a fourth acoustic superstructure (not shown in the figure) located on the upper side of the air inlet of the fan in the vertical direction. The first acoustic superstructure 410 and the second acoustic superstructure 420 are arranged vertically in the up-down direction, the third acoustic superstructure 430 and the fourth acoustic superstructure are arranged horizontally in the left-right direction, and the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure together enclose the wind duct 130. Among them, the opposite sides of the first acoustic superstructure 410 and the second acoustic superstructure 420 (i.e., the sides of the first acoustic superstructure 410 and the second acoustic superstructure 420 facing the wind duct 130) are sound absorbing surfaces, and the opposite sides of the third acoustic superstructure 430 and the fourth acoustic superstructure (i.e., the sides of the third acoustic superstructure 430 and the fourth acoustic superstructure facing the wind duct 130) are sound absorbing surfaces.

[0031] In some embodiments, a sound-absorbing cavity is provided inside the first acoustic superstructure 410, and a sound-absorbing surface of the first acoustic superstructure 410 is provided with a sound-absorbing hole 450 (the sound-absorbing hole 450 is a microhole), and the sound-absorbing hole 450 is connected to the sound-absorbing cavity; a sound-absorbing cavity is provided inside the second acoustic superstructure 420, and a sound-absorbing surface of the second acoustic superstructure 420 is provided with a sound-absorbing hole 450, and the sound-absorbing hole 450 is connected to the sound-absorbing cavity; a sound-absorbing cavity is provided inside the third acoustic superstructure 430, and a sound-absorbing surface of the third acoustic superstructure 430 is provided with a sound-absorbing hole 450, and the sound-absorbing hole 450 is connected to the sound-absorbing cavity; a sound-absorbing cavity is provided inside the fourth acoustic superstructure, and a sound-absorbing surface of the fourth acoustic superstructure is provided with a sound-absorbing hole 450, and the sound-absorbing hole 450 is connected to the sound-absorbing cavity; the noise in the air duct 130 enters the sound-absorbing cavity through the sound-absorbing hole 450 for sound silencing and noise reduction.

[0032] In some embodiments, see Figures 3 to 5It is understood that the inner bottom of the shell 100 has a water receiving tray 110, and the water receiving tray 110 includes a first installation area 111 and a second installation area 112. The third acoustic superstructure 430 and the water receiving tray 110 are an integral structure or a split structure, and the sound absorbing surface of the third acoustic superstructure 430 is inclined upward from one end adjacent to the first installation area 111 to one end adjacent to the third installation area 120. In this way, water in the water receiving tray 110 can be prevented from entering the silencer cavity of the third acoustic superstructure 430 through the sound hole of the third acoustic superstructure 430 to reduce the silencer effect of the silencer cavity.

[0033] Of course, it is also possible that only any one of the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure is set; of course, it is also possible that only any two of the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure are set; of course, it is also possible that only any three of the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure are set, etc.; all of the above can achieve the purpose of the present application, and their purpose does not deviate from the design concept of the present utility model, and will not be repeated here, and all should belong to the protection scope of the present application.

[0034] In some embodiments, see Figures 3 to 5 It can be understood that the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure are all plate-shaped, and the wall thickness of the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure are all set to 20mm-30mm. Compared with the use of a 1 / 4 wavelength tube, the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure of this solution have a size advantage and are easier to be embedded in the duct machine for noise reduction; wherein, the sound absorption bandwidth of the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure is set to 500Hz-1600Hz, so that the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure have a better noise reduction effect, and the noise generated when the duct machine is in operation is smaller.

[0035] The wall thickness of the first acoustic superstructure 410 may be 20 mm; or the wall thickness of the first acoustic superstructure 410 may be 25 mm; or the wall thickness of the first acoustic superstructure 410 may be 30 mm, etc.; the wall thickness of the second acoustic superstructure 420 may be 20 mm; or the wall thickness of the second acoustic superstructure 420 may be 25 mm; or the wall thickness of the second acoustic superstructure 420 may be 30 mm, etc.; the wall thickness of the third acoustic superstructure 430 may be 2 0mm; or the wall thickness of the third acoustic superstructure 430 may be set to 25mm; or the wall thickness of the third acoustic superstructure 430 may be set to 30mm, etc.; the wall thickness of the fourth acoustic superstructure may be set to 20mm; or the wall thickness of the fourth acoustic superstructure may be set to 25mm; or the wall thickness of the fourth acoustic superstructure may be set to 30mm, etc.; all of the above may achieve the purpose of the present application, and their purpose does not deviate from the design concept of the present utility model, and will not be repeated here, and all shall belong to the protection scope of the present application.

[0036] The sound absorption bandwidth of the first acoustic superstructure 410 may be set to 500 Hz; or the sound absorption bandwidth of the first acoustic superstructure 410 may be set to 1000 Hz; or the sound absorption bandwidth of the first acoustic superstructure 410 may be set to 1600 Hz, etc.; the sound absorption bandwidth of the second acoustic superstructure 420 may be set to 500 Hz; or the sound absorption bandwidth of the second acoustic superstructure 420 may be set to 1000 Hz; or the sound absorption bandwidth of the second acoustic superstructure 420 may be set to 1600 Hz, etc.; the sound absorption bandwidth of the third acoustic superstructure 430 may be set to The sound absorption bandwidth of the third acoustic superstructure 430 may be 500 Hz; or the sound absorption bandwidth of the third acoustic superstructure 430 may be 1000 Hz; or the sound absorption bandwidth of the third acoustic superstructure 430 may be 1600 Hz, etc.; the sound absorption bandwidth of the fourth acoustic superstructure may be 500 Hz; or the sound absorption bandwidth of the fourth acoustic superstructure may be 1000 Hz; or the sound absorption bandwidth of the fourth acoustic superstructure may be 1600 Hz, etc.; all of the above may achieve the purpose of the present application, and their purpose does not deviate from the design concept of the present utility model, and will not be repeated here, and all shall belong to the protection scope of the present application.

[0037] In some other exemplary embodiments, Figures 1 to 4As shown, the fan includes a plurality of centrifugal fans 300, and the plurality of centrifugal fans 300 are arranged at intervals in the left-right direction. The side of the heat exchanger 200 facing the second installation area 112 is horizontally separated by an acoustic superstructure into a plurality of wind passing areas 210, and the wind passing duct 130 includes a plurality of air inlets of the plurality of centrifugal fans 300, the plurality of wind passing ducts 130, and the plurality of wind passing areas 210 correspond one to one. It can be that the left side wall of each wind passing duct 130 is a first acoustic superstructure 410, and the right side wall of each wind passing duct 130 is a second acoustic superstructure 420. A first acoustic superstructure 410 and a second acoustic superstructure 420 are provided on the left and right sides of the air inlet of each centrifugal fan 300. A first acoustic superstructure 410 and a second acoustic superstructure 420 between any two adjacent centrifugal fans 300 are located at the interval between the two adjacent centrifugal fans 300. Since the air flow in the wind passing area 210 is relatively large, the interval between the adjacent wind passing areas 210 (corresponding to the position where a first acoustic superstructure 410 and a second acoustic superstructure 420 are arranged between any two adjacent centrifugal fans 300) is located at the interval between the two adjacent centrifugal fans 300. ) has a relatively small air flow rate, so a first acoustic superstructure 410 and a second acoustic superstructure 420 between any two adjacent centrifugal fans 300 are correspondingly located at the interval between adjacent air flow areas 210, which has little effect on the heat exchange performance of the heat exchanger 200 and will not affect the air inlet of the centrifugal fan 300. The first acoustic superstructure 410 and the second acoustic superstructure 420 located at the left and right ends are located on the left and right sides of the fins of the heat exchanger 200, avoiding affecting the heat exchange performance of the heat exchanger 200, so that the performance of the duct machine is better.

[0038] In some embodiments, Figure 4 and Figure 5 As shown, the third acoustic superstructures 430 located at the bottom are made into an integral structure or a separate structure with the water receiving tray 110. The water receiving tray 110 is made of plastic, and the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure are also made of plastic.

[0039] For each centrifugal fan 300: it can be equipped with only any one of the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure; or it can be equipped with only any two of the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure; or it can be equipped with only any three of the first acoustic superstructure 410, the second acoustic superstructure 420, the third acoustic superstructure 430 and the fourth acoustic superstructure, etc.; all of the above can achieve the purpose of the present application, and its purpose does not deviate from the design concept of the present utility model, and will not be repeated here, and should all belong to the protection scope of the present application.

[0040] The air conditioner (not shown in the figure) proposed in the embodiment of the utility model includes the air duct unit described in any of the above embodiments.

[0041] This air conditioner has all the advantages of the duct air conditioner provided by any of the above embodiments, which will not be described in detail here.

[0042] To sum up, according to the technical solution provided by the embodiment of the utility model, when the duct air conditioner is running, the indoor air passes through the heat exchanger for heat exchange and then flows to the air duct, then passes through the inside of the fan from the air inlet of the fan, and is blown back into the room from the air outlet of the fan. Since the acoustic superstructure is located at the periphery of the air inlet of the fan, the acoustic superstructure will not affect the air intake of the fan at the air inlet, and in the process of the wind beam passing through the air duct, the noise in the wind beam will enter the interior of the acoustic superstructure from the sound-absorbing surface of the acoustic superstructure for noise reduction. Therefore, the duct air conditioner generates little noise when in operation, and has a large air output and good overall performance.

[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "'mouth'-shaped structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] Although the implementation methods disclosed in the utility model are as above, the above contents are only implementation methods adopted to facilitate the understanding of the utility model, and are not used to limit the utility model. Any technician in the field to which the utility model belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the utility model, but the scope of patent protection of the utility model shall still be defined by the attached claims.

Claims

1. A duct machine, characterized in that: include: A housing, wherein a first installation area, a second installation area and a third installation area are sequentially arranged inside; A heat exchanger, arranged in the first installation area; A fan, arranged in the third installation area, with an air inlet of the fan facing the second installation area; and The acoustic superstructure is located in the second installation area and at the periphery of the air inlet of the fan. An air passage is formed between the sound absorbing surface of the acoustic superstructure, the side of the heat exchanger facing the second installation area and the air inlet of the fan.

2. The air duct machine according to claim 1, characterized in that: The acoustic superstructure includes a first acoustic superstructure located on one side of the air inlet of the fan in a horizontal direction and / or a second acoustic superstructure located on the other side of the air inlet of the fan.

3. The air duct machine according to claim 2, characterized in that: One side of the air inlet of the fan in the horizontal direction is the left side of the air inlet of the fan, and the other side of the air inlet of the fan in the horizontal direction is the right side of the air inlet of the fan.

4. The air duct machine according to claim 1, characterized in that: The acoustic superstructure includes a third acoustic superstructure located at a lower side of an air inlet of the fan in a vertical direction.

5. The air duct machine according to claim 4, characterized in that: The inner bottom of the shell is provided with a water receiving tray, the water receiving tray includes the first installation area and the second installation area, and the third acoustic superstructure and the water receiving tray are an integrated structure.

6. The air duct machine according to claim 1, characterized in that: The acoustic superstructure includes a fourth acoustic superstructure located on an upper side of an air inlet of the fan in a vertical direction.

7. The duct machine according to any one of claims 1 to 6, characterized in that: The fan comprises a centrifugal fan; or The fan includes a plurality of centrifugal fans arranged in parallel, a side of the heat exchanger facing the second installation area is divided into a plurality of wind passing areas in the horizontal direction by the acoustic superstructure, and the wind passing duct includes a plurality of air inlets of the plurality of centrifugal fans, the plurality of wind passing ducts and the plurality of wind passing areas correspond one to one.

8. The duct machine according to any one of claims 1 to 6, characterized in that: The wall thickness of the acoustic superstructure is 20 mm to 30 mm.

9. The duct machine according to any one of claims 1 to 6, characterized in that: The sound absorption bandwidth of the acoustic superstructure is 500 Hz to 1600 Hz.

10. An air conditioner, characterized in that: It comprises the duct machine as claimed in any one of claims 1 to 9.

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