Fresh air sound absorption module and air conditioner

Abstract

The utility model relates to the field of air conditioners, and particularly discloses a fresh air sound-absorbing module and an air conditioner, the fresh air sound-absorbing module comprises a lower volute, a plurality of sound-absorbing holes are formed in the lower volute, the fresh air sound-absorbing module further comprises a sound-absorbing and sound-insulating module assembly capable of switching sound absorption and sound insulation, the sound-absorbing and sound-insulating module assembly is detachably installed outside the lower volute, and the sound-absorbing holes are covered with the sound-absorbing and sound-insulating module assembly. According to the scheme, the sound absorption and insulation module assemblies on the lower volute can be rapidly switched according to the use requirements, a user can also adopt the sound absorption and insulation module assemblies of the corresponding specifications according to the requirements, the research and development cost and the use and purchase cost of the lower volute and the sound absorption and insulation module assemblies are saved, noise generated by fresh air in different scenes can be effectively reduced, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a fresh air sound absorption module and an air conditioner. Background Art

[0002] As living standards continue to improve, people pay more attention to healthy air environment, and more and more air conditioners are beginning to add fresh air function. The core component of the fresh air system is the built-in fan, whose main function is to introduce fresh air from the outside into the room and exhaust the dirty air from the room. During the operation of the fresh air system, the speed of the built-in fan is relatively high in order to provide sufficient air volume to meet the ventilation needs.

[0003] The rotation of the fan will produce a certain amount of noise, and generally speaking, the larger the fresh air volume, the higher the required fan speed, and the correspondingly greater the noise. Some rooms are large in area, so the air conditioner requires a large amount of fresh air; some rooms are small in area, so the air conditioner requires a small amount of fresh air; and the larger the fresh air volume, the higher the noise value, and the smaller the fresh air volume, the lower the noise value.

[0004] At present, the fresh air modules are single and cannot adapt to the fresh air volume requirements of rooms of different sizes. When a large room requires a large fresh air volume, the noise is relatively large and noise reduction should be considered. When a small room requires a small fresh air volume, the noise value is small. Consideration should be given to removing the noise reduction module to reduce costs. The current fresh air modules are difficult to adapt to such changes. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a fresh air sound absorption module and an air conditioner to solve the problem that the fresh air module is single and difficult to adapt to the fresh air volume requirements of rooms of different sizes.

[0006] In order to achieve the above-mentioned purpose, the basic scheme of the utility model is as follows: the fresh air sound absorption module includes a lower volute, which is provided with a plurality of sound absorption holes, and also includes:

[0007] A sound absorbing and sound insulating module component can be switched between sound absorption and sound insulation. The sound absorbing and sound insulating module component can be detachably installed outside the lower volute, and the sound absorbing and sound insulating module component covers a plurality of sound absorbing holes.

[0008] The technical principle of the utility model is: when the fresh air sound-absorbing module is taking in air, the sound-absorbing holes on the lower volute can initially absorb the noise generated by the airflow, and the airflow can impact the sound-absorbing and insulating module assembly, and the sound-absorbing and insulating module assembly absorbs the airflow.

[0009] When the entire fresh air sound-absorbing module is used in a large room or in an environment requiring a large fresh air volume, the sound-absorbing and sound-insulating module assembly is switched to the sound-absorbing state, and the sound-absorbing and sound-insulating module assembly is installed outside the lower volute. The sound-absorbing and sound-insulating module assembly can further absorb sound at the sound-absorbing holes, thereby improving the sound-absorbing treatment of airflows with large air volumes. When a large fresh air volume is not required, the sound-absorbing and sound-insulating module assembly is disassembled, and the sound-absorbing and sound-insulating module assembly is switched to the sound-insulating state, which can be used in an environment with small air volumes.

[0010] The sound-absorbing and insulating module components on the lower volute can be quickly switched according to usage requirements, and users can also adopt sound-absorbing and insulating module components of corresponding specifications according to their needs, saving the R&D cost and purchase cost of the lower volute and sound-absorbing and insulating module components, and can effectively reduce the noise generated by fresh air in different scenarios and save costs.

[0011] Further, the sound absorbing and insulating module assembly includes:

[0012] A sound-absorbing and insulating shell, the sound-absorbing and insulating shell is wrapped outside the lower volute, and the sound-absorbing and insulating shell is detachably connected to the lower volute;

[0013] The sound absorbing and insulating layer is wrapped and fixed on the sound absorbing shell, and the sound absorbing and insulating layer is in contact with a plurality of sound absorbing holes.

[0014] Through the above arrangement, the sound-absorbing and sound-insulating shell and the detachable connection with the lower volute can be quickly disassembled and assembled, which is convenient for switching the sound absorption and sound insulation of the sound-absorbing and sound-insulating module assembly.

[0015] Furthermore, the sound-absorbing and insulating shell is a sound-absorbing outer shell, and the sound-absorbing and insulating layer is sound-absorbing cotton that abuts against the sound-absorbing holes of the lower volute.

[0016] Through the above arrangement, the sound-absorbing shell and the sound-absorbing cotton can cooperate with each other and can be applied to large rooms or rooms requiring a large amount of fresh air. The sound-absorbing effect of the sound-absorbing cotton is significantly better than that of general materials, achieving sound absorption at the sound-absorbing holes.

[0017] Furthermore, the sound-absorbing and insulating shell is a sealing strip shell, and the sound-absorbing and insulating layer is a sealing strip that abuts against the sound-absorbing hole of the lower volute.

[0018] Through the above arrangement, the side wall of the sealing strip can cover and fit to the sound absorption hole of the lower volute, thereby achieving sealing and sound insulation at the sound absorption hole, and it can be applied to an environment that does not require a large amount of fresh air.

[0019] Furthermore, an incompletely annular sealing strip bracket is coaxially arranged on the inner ring of the sealing strip shell, the outer wall of the sealing strip bracket is opposite to the inner wall of the sealing strip shell, and the sealing strip bracket is fixedly connected to the sealing strip shell; the sealing strip is fixedly installed on one side of the sealing strip bracket close to the sound absorbing hole.

[0020] Through the above arrangement, the sealing strip bracket can support the sealing strip and ensure that the thinner sealing strip fits to the sound absorbing hole, so that the sealing strip can more stably cooperate with the sound absorbing hole for sound insulation.

[0021] Furthermore, the sound-absorbing and insulating shell and the sound-absorbing and insulating layer are both incompletely annular, and the inner side walls of the sound-absorbing and insulating shell and the sound-absorbing and insulating layer are directly opposite to the sound-absorbing holes; an incompletely annular first flange is fixedly provided on one end surface of the lower volute, the first flange abuts against one end surface of the sound-absorbing and insulating shell and is detachably connected, and an incompletely annular second flange is fixedly provided on one end surface of the sound-absorbing and insulating shell away from the first flange, and both the first flange and the second flange can abut against the end surface of the sound-absorbing and insulating layer.

[0022] Through the above-mentioned arrangement, the sound-absorbing and insulating shell and the sound-absorbing and insulating layer can cooperate with the sound-absorbing holes on the lower volute to achieve further sound absorption or sound insulation at the sound-absorbing holes; the first flange and the second flange can support the sound-absorbing and insulating layer more tightly to enhance the sound absorption or sound insulation effect; at the same time, when the sound-absorbing and insulating module assembly is installed on the lower volute, the first flange can cooperate with the sound-absorbing and insulating module assembly, and the second flange can cooperate with the lower volute, so that the installation of the sound-absorbing and insulating module assembly and the lower volute is tighter.

[0023] Furthermore, a plurality of snap-fitting snap-fitting seats and snaps are provided between the outer wall of the sound-absorbing and insulating shell on the side away from the second flange and the first flange. When the snap-fitting seats are fixedly connected to the sound-absorbing and insulating shell, the snaps are fixedly connected to the first flange; or, when the snap-fitting seats are fixedly connected to the first flange, the snaps are fixedly connected to the sound-absorbing and insulating shell.

[0024] Through the above arrangement, when the buckle cooperates with the buckle seat, the detachable connection between the sound-absorbing and insulating module assembly and the lower volute is more reliable and easy to disassemble and assemble.

[0025] Furthermore, a long rib is fixedly provided at the edge of the lower volute away from the end face of the first flange, and a long groove for the long rib to be embedded in is provided at one side of the second flange close to the lower volute.

[0026] Through the above arrangement, when installing the sound absorbing and insulating module assembly and the lower volute, the long ribs can be stably embedded in the long grooves, so that the fitting installation between the sound absorbing and insulating module assembly and the lower volute is tighter and soundproof.

[0027] Furthermore, two positioning plates are fixedly installed on the outer wall of the lower volute, and the plurality of sound-absorbing holes are located between the two positioning plates. Positioning grooves are vertically arranged on the positioning plates; and positioning ribs that can be snapped into the positioning grooves are arranged on the ends of the sound-absorbing and insulating shells.

[0028] Through the above arrangement, when installing the sound-absorbing and insulating module assembly and the lower volute, the positioning ribs at the end of the sound-absorbing and insulating shell can cooperate with the positioning groove, so that the end and side wall of the sound-absorbing and insulating shell after final installation are stably limited by the lower volute, making the cooperation between the sound-absorbing and insulating module assembly and the lower volute more stable.

[0029] The utility model also intends to provide an air conditioner, comprising a fresh air sound absorption module.

[0030] The technical principle of the utility model is: the same set of fresh air system can be adapted to air conditioners used in various scenarios. Users do not need to match different fresh air fans according to different models. They only need to select the sound absorption and insulation module components according to their needs and install them on the lower volute, saving the research and development cost and purchase cost of the lower volute and the sound absorption and insulation module components, and can effectively reduce the noise generated by the fresh air in different scenarios, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an exploded view of the fresh air sound absorption module in Example 1 of the utility model.

[0032] Figure 2 for Figure 1 Bottom view of the Zhongxinfeng sound-absorbing module.

[0033] Figure 3 for Figure 2 Cross-sectional view at AA in the middle.

[0034] Figure 4 for Figure 2 Axial exploded view of the middle and lower volute and sound absorption and insulation module assembly.

[0035] Figure 5 for Figure 4 Top view of the central absorption sound insulation module assembly.

[0036] Figure 6 This is an exploded view of the fresh air sound absorption module in Example 2 of the utility model.

[0037] Figure 7 for Figure 1 Bottom view of the Zhongxinfeng sound-absorbing module.

[0038] Figure 8 for Figure 7 Cross-sectional view at the middle BB.

[0039] Fig. 9 for Figure 7 Top view of the central absorption sound insulation module assembly.

[0040] In the above drawings: upper volute 1, HEPA filter element 11, HEPA bracket 12, guide ring 13, wind wheel 14, lower volute 20, sound absorption hole 201, first flange 202, sound absorption and insulation module assembly 30, sound absorption shell 401, sound absorption cotton 402, second flange 403, buckle seat 501, buckle 502, long rib 503, long groove 504, positioning plate 505, positioning groove 506, positioning rib 507, sealing strip shell 601, sealing strip bracket 602, sealing strip 603. DETAILED DESCRIPTION

[0041] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0042] Example 1

[0043] This embodiment is basically Figure 1-5 As shown, the embodiment of the utility model proposes a fresh air sound absorption module, including an upper volute 1, a HEPA filter element 11, a HEPA bracket 12, a guide ring 13, a wind wheel 14, a lower volute 20 and a sound absorption and sound insulation module assembly 30 that can switch between sound absorption and sound insulation. A plurality of sound absorption holes 201 are arranged through the lower volute 20, the wind wheel 14 is coaxially installed between the upper volute 1 and the lower volute 20, the HEPA bracket 12 is installed on the upper volute 1, the HEPA filter element 11 is installed on the HEPA bracket 12, the guide ring 13 is installed on the upper volute 1, and the guide ring 13 is fixed between the HEPA filter element 11 and the lower volute 20.

[0044] like Figure 1-5 As shown, the sound-absorbing and insulating module assembly 30 includes a sound-absorbing and insulating shell and a sound-absorbing and insulating layer. Both the sound-absorbing and insulating shell and the sound-absorbing and insulating layer are incompletely annular. The inner walls of the sound-absorbing and insulating shell and the sound-absorbing and insulating layer are directly opposite to the sound-absorbing holes 201. At the same time, the sound-absorbing and insulating shell is a sound-absorbing outer shell 401, and the sound-absorbing and insulating layer is a sound-absorbing cotton 402 that is against the sound-absorbing holes 201 of the lower volute 20. The sound-absorbing cotton 402 fits with and completely covers several sound-absorbing holes 201 of the lower volute 20.

[0045] like Figure 1 , 3 As shown in Figures 4 and 5, an incomplete annular first flange 202 is integrally formed at the upper end surface of the lower volute 20, the edge of the first flange 202 is abutted against the upper end surface of the sound-absorbing shell 401, the vertical surface of the first flange 202 is coplanar with the outer wall of the sound-absorbing shell 401, and an incomplete annular second flange 403 is integrally formed at the lower end surface of the sound-absorbing shell 401, the lower side of the first flange 202 is abutted against the upper side of the sound-absorbing cotton 402, and the upper side of the second flange 403 is abutted against the lower side of the sound-absorbing cotton 402.

[0046] At the same time, if Figure 4 and 5As shown, four snap-fitting snap seats 501 and snaps 502 are provided between the outer wall of the sound-absorbing shell 401 away from the second flange 403 and the first flange 202. The snap seat 501 is integrally formed with the first flange 202, and the snap 502 is integrally formed with the outer wall of the sound-absorbing shell. The four snaps 502 are evenly arranged along the circumference of the outer wall of the sound-absorbing shell.

[0047] like Figure 4 and 5 As shown, a long rib 503 is integrally formed at the upper edge of the lower volute 20, and a long groove 504 for the long rib 503 to be embedded in the second flange 403 is provided at one side edge close to the lower volute 20;

[0048] At the same time Figure 4 As shown, two positioning plates 505 are integrally formed on the outer wall of the lower volute 20, the two positioning plates 505 are opposite to the two ends of the sound-absorbing and insulating shell, and the plurality of sound-absorbing holes 201 are located between the two positioning plates 505. A positioning groove 506 is vertically provided on the positioning plate 505, and the upper end of the positioning groove 506 passes through the upper side of the positioning plate 505, and the upper inner wall of the positioning groove 506 is a wedge-shaped surface; a positioning rib 507 that can be snapped into the positioning groove 506 is integrally formed on the end of the sound-absorbing and insulating shell.

[0049] When installing the fresh air sound-absorbing module in this embodiment, the sound-absorbing cotton 402 is assembled to the inner wall of the sound-absorbing shell 401 to form a sound-absorbing and insulating module assembly 30, and the lower side of the sound-absorbing cotton 402 is against the upper side of the second flange 403; then the entire sound-absorbing and insulating module assembly 30 is opposed to the four buckles 502 through the four buckle seats 501, and then the buckles 502 are buckled with the buckle seats 501, at this time, the long groove 504 cooperates with the long rib 503, the positioning rib 507 is embedded in the positioning groove 506 of the positioning plate 505, the positioning rib 507 is positioned and buckled, the upper side of the sound-absorbing shell 401 is tightly fitted with the lower side of the first flange 202, and the upper side of the sound-absorbing cotton 402 is against the lower side of the first flange 202, so that the sound-absorbing hole 201 on the sound-absorbing shell 401 is completely covered by the sound-absorbing cotton 402, thereby achieving the sound-absorbing hole 201 The sound-absorbing hole 201 is blocked.

[0050] When the fresh air sound absorption module is taking in air, the wind wheel 14 starts to suck the airflow, and the airflow passes through the upper volute 1 and the HEPA filter element 11 in turn and enters the lower volute 20. The sound absorption holes 201 on the lower volute 20 can initially absorb the noise generated by the airflow. While the sound absorption holes 201 are absorbing sound, the airflow can impact the sound-absorbing cotton 402. The sound-absorbing cotton 402 is stably attached to the sound absorption holes 201 with the support of the sound-absorbing outer shell 401, and absorbs the sound of the airflow, thereby reducing the noise when the fresh air is started.

[0051] The sound absorbing and insulating module assembly 30 in the fresh air sound absorbing module of this embodiment can be used in large rooms or environments requiring a large amount of fresh air. At the same time, when disassembling the sound absorbing and insulating module assembly 30, it is only necessary to slightly separate the four buckle seats 501 and the four buckles 502 to separate the sound absorbing and insulating module assembly 30 from the lower volute 20, and then remove the sound absorbing and insulating module assembly 30. The sound absorbing and insulating module assembly 30 is easy to disassemble and replace, and the sound absorbing and insulating module assembly 30 can be selected according to the noise level and the size of the room, thereby reducing the research and development cost when installing and matching the sound absorbing and insulating module assembly 30 with the lower volute 20.

[0052] Example 2

[0053] The difference between Example 2 and Example 1 is basically as shown in the attached Figure 6-9 As shown, the sound-absorbing and insulating shell is a sealing strip shell 601 , and the sound-absorbing and insulating layer is a sealing strip 603 that abuts against the sound-absorbing hole 201 of the lower volute 20 .

[0054] At the same time, as shown in Figure 6-9, an incomplete ring-shaped sealing strip bracket 602 is coaxially arranged on the inner ring of the sealing strip housing 601, the outer wall of the sealing strip bracket 602 is directly opposite to the inner wall of the sealing strip housing 601, and the sealing strip bracket 602 is fixedly bonded to the sealing strip housing 601; the sealing strip 603 is integrally formed on the inner ring of the sealing strip bracket 602.

[0055] When installing the fresh air sound-absorbing module in this embodiment, the sealing strip 603 is adhered to the side of the sealing strip bracket 602 close to the sound-absorbing hole 201 of the lower volute 20, and the sealing strip 603 can be stably installed on the sealing strip bracket 602. The sealing strip 603 and the sealing strip shell 601 constitute another specification of the sound-absorbing module assembly 30. Then, the sound-absorbing module assembly 30 is installed on the lower volute 20 in the same manner as in Example 1, so that the side wall of the sealing strip 603 can cover and fit to the sound-absorbing hole 201 of the lower volute 20, thereby achieving sealing of the sound-absorbing hole 201.

[0056] When a large amount of fresh air is not required, the above sound-absorbing and insulating module assembly 30 is installed on the lower volute 20, thereby realizing the switching of the two sound-absorbing and insulating module assemblies 30 while the upper volute 1 and the lower volute 20 remain unchanged; when the sound-absorbing and insulating module assembly 30 in this embodiment is in use, it can achieve a relatively good sound insulation effect by fitting the sealing strip 603 with the sound-absorbing hole 201, and it can be applied to scenes where a large amount of fresh air is not required.

[0057] Example 3

[0058] The difference between Example 3 and Example 1 is that an air conditioner is provided, which includes a fresh air sound absorption module.

[0059] When the air conditioner in this embodiment is in use, the two sound-absorbing and insulating module assemblies 30 in Embodiment 1 and Embodiment 2 can be selected or replaced according to the amount of fresh air. The same fresh air system can be adapted to air conditioners used in various scenarios. Users do not need to match different fresh air fans according to different models. They only need to select the sound-absorbing and insulating module assemblies 30 in Embodiment 1 and Embodiment 2 according to their needs and install them on the lower volute 20, thereby saving the research and development cost and purchase cost of the lower volute 20 and the sound-absorbing and insulating module assemblies 30, and can effectively reduce the noise generated by the fresh air in different scenarios, thereby saving costs.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fresh air sound absorption module, comprising a lower volute, characterized in that: The lower volute is provided with a number of sound-absorbing holes, including: A sound absorbing and sound insulating module component is switchable between sound absorption and sound insulation. The sound absorbing and sound insulating module component can be detachably installed outside the lower volute, and the sound absorbing and sound insulating module component covers a plurality of sound absorbing holes.

2. The fresh air sound absorption module according to claim 1, characterized in that: The sound absorption and insulation module assembly comprises: A sound-absorbing and insulating shell, wherein the sound-absorbing and insulating shell is wrapped around the lower volute, and the sound-absorbing and insulating shell is detachably connected to the lower volute; The sound absorbing and insulating layer is wrapped and fixed on the sound absorbing shell, and the sound absorbing and insulating layer is in contact with a plurality of sound absorbing holes.

3. The fresh air sound absorption module according to claim 2, characterized in that: The sound-absorbing and insulating shell is a sound-absorbing outer shell, and the sound-absorbing and insulating layer is sound-absorbing cotton that abuts against the sound-absorbing holes of the lower volute.

4. The fresh air sound absorption module according to claim 2, characterized in that: The sound-absorbing and insulating shell is a sealing strip shell, and the sound-absorbing and insulating layer is a sealing strip abutting against the sound-absorbing hole of the lower volute.

5. The fresh air sound absorption module according to claim 4, characterized in that: An incompletely annular sealing strip bracket is coaxially arranged on the inner ring of the sealing strip shell, the outer wall of the sealing strip bracket is opposite to the inner wall of the sealing strip shell, and the sealing strip bracket is fixedly connected to the sealing strip shell; the sealing strip is fixedly installed on one side of the sealing strip bracket close to the sound absorbing hole.

6. The fresh air sound absorption module according to claim 3 or 5, characterized in that: The sound-absorbing and insulating shell and the sound-absorbing and insulating layer are both incompletely annular, and the inner side walls of the sound-absorbing and insulating shell and the sound-absorbing and insulating layer are directly opposite to the sound-absorbing holes; an incompletely annular first flange is fixedly provided on one end surface of the lower volute, the first flange abuts against one end surface of the sound-absorbing and insulating shell and is detachably connected, an incompletely annular second flange is fixedly provided on one end surface of the sound-absorbing and insulating shell away from the first flange, and both the first flange and the second flange can abut against the end surface of the sound-absorbing and insulating layer.

7. The fresh air sound absorption module according to claim 6, characterized in that: A plurality of snap-fitting snap seats and snaps are provided between the outer wall of the sound absorbing and insulating shell on the side away from the second flange and the first flange. When the snap seat is fixedly connected to the sound absorbing and insulating shell, the snap is fixedly connected to the first flange; or, when the snap seat is fixedly connected to the first flange, the snap is fixedly connected to the sound absorbing and insulating shell.

8. The fresh air sound absorbing module according to claim 7, characterized in that: A long rib is fixedly arranged at the edge of the lower volute away from the end face of the first flange, and a long groove for the long rib to be embedded and locked is provided at one side of the second flange close to the lower volute.

9. The fresh air sound absorbing module according to claim 8, characterized in that: Two positioning plates are fixedly installed on the outer wall of the lower volute, and a plurality of sound-absorbing holes are located between the two positioning plates. Positioning grooves are vertically arranged on the positioning plates; and positioning ribs that can be snapped into the positioning grooves are arranged on the ends of the sound-absorbing and insulating shell.

10. An air conditioner, characterized in that: It comprises a fresh air sound absorption module as described in any one of claims 7 to 9.

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