Sound insulation and noise reduction device

Abstract

The utility model provides a sound insulation and noise reduction device which is used for noise reduction of a fan and comprises a frame body, a heating assembly, the fan and a noise reduction assembly. The frame body is provided with an air inlet window and an air outlet window which are communicated with the outside; the heating component is assembled in the frame body; the fan is located in the frame and used for driving external airflow to flow to the heating assembly from the air inlet window and then flow to the air outlet window from the heating assembly. The noise reduction assembly is assembled in the frame body and is arranged on a flowing path of airflow; wherein the noise reduction assembly comprises a shell assembled in the frame body, an air inlet and an air outlet are formed in the shell, an air duct which communicates with the air inlet and the air outlet and is used for allowing airflow to flow is formed in the shell, the noise reduction assembly further comprises a plurality of noise reduction bins arranged in the air duct, and the noise reduction bins are arranged in series in the extending direction of the air duct. In the flowing process of air flow, noise passes through the noise reduction bins, the noise is gradually weakened under the action of the multiple noise reduction bins, and therefore the purpose of noise reduction is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of noise reduction, especially relates to a sound insulation and noise reduction device. BACKGROUND

[0002] The fan plays a very important role in production and life, such as air-cooled or liquid-cooled energy storage system, and the internal PCS (Power Conversion System, energy storage converter) heat dissipation or external air conditioning operation needs to start the fan. However, the fan will produce certain noise in the process of operation, and the noise is proportional to the number and rotating speed of the fan, and the noise will cause a certain degree of disturbance to people's body and mind, therefore, it is necessary to solve the noise problem of the fan. SUMMARY

[0003] The technical purpose of the utility model is to provide a sound insulation and noise reduction device, which aims to solve the noise problem of the fan.

[0004] To solve the above technical problems, the utility model is realized in this way, a sound insulation and noise reduction device is used for fan noise reduction, the sound insulation and noise reduction device includes a frame body, a heating assembly, a fan and a noise reduction assembly, the frame body is provided with an air inlet window and an air outlet window which are communicated with the outside, the heating assembly is assembled in the frame body, the fan is located in the frame body, the fan is used for driving the outside airflow to flow from the air inlet window to the heating assembly, and then to flow from the heating assembly to the air outlet window, the noise reduction assembly is assembled in the frame body and is arranged on the airflow flow path, wherein the noise reduction assembly includes a shell assembled in the frame body, the shell is provided with an air inlet and an air outlet, an air duct is formed in the shell and is communicated with the air inlet and the air outlet and is used for airflow flow, the noise reduction assembly further includes a plurality of noise reduction bins arranged in the air duct, and the plurality of noise reduction bins are arranged in series along the extension direction of the air duct.

[0005] Further, in some embodiments, the noise reduction assembly further includes a plurality of sound insulation walls arranged in the shell and spaced along the extension direction of the air duct, and adjacent two sound insulation walls form a noise reduction bin.

[0006] Further, in some embodiments, the noise reduction assembly further includes a sound absorption structure arranged on at least part of the sound insulation wall.

[0007] Further, in some embodiments, the air duct comprises two spaced and opposite parallel sections, and a connecting section between and connecting the two parallel sections, wherein one of the parallel sections has an inlet end, and the inlet end is communicated with the air inlet; the other of the parallel sections has an outlet end, and the outlet end is communicated with the air outlet; the noise reduction bin is arranged on at least one of the two sides of the parallel sections, and at least one of the parallel sections is provided with the noise reduction bin.

[0008] Further, in some embodiments, the noise reduction assembly is provided with a first flow guide groove communicated between the air inlet and the inlet end; the first flow guide groove extends from the air inlet to the inlet end; and / or, the noise reduction assembly is provided with a second flow guide groove communicated between the outlet end and the air outlet; the second flow guide groove extends from the outlet end to the air outlet; and / or, the noise reduction assembly is provided with a third flow guide groove located in the connecting section and communicated between the two parallel sections, and the end of the third flow guide groove extends to the two parallel sections.

[0009] Further, in some embodiments, the first flow guide groove is arc-shaped; and / or, the second flow guide groove is arc-shaped; and / or, the third flow guide groove is semi-circular.

[0010] Further, in some embodiments, the air duct comprises a main air duct and a noise reduction space, wherein a plurality of the noise reduction bins form the noise reduction space; the noise reduction assembly further comprises a sound-permeable wind blocking structure arranged along the extension direction of the air duct, and the sound-permeable wind blocking structure is arranged between the air duct and the noise reduction space.

[0011] Further, in some embodiments, the noise reduction assembly comprises a first noise reduction assembly; the first noise reduction assembly comprises a first shell assembled in the frame body, the first shell is provided with a first air inlet opposite to and communicated with the air inlet window, and a first air outlet communicated with the heat generating assembly, and a fan is arranged at the first air outlet; the first shell is formed with a first air duct communicated between the first air inlet and the first air outlet; the first noise reduction assembly further comprises a plurality of first noise reduction bins arranged in the first air duct, and the plurality of first noise reduction bins are arranged in series along the extension direction of the first air duct.

[0012] Further, in some embodiments, the sound insulation and noise reduction device further comprises a fan assembly position arranged at the first air outlet, the fan is assembled in the fan assembly position, and a buffer structure is further arranged between the fan and the fan assembly position.

[0013] Further, in some embodiments, the noise reduction assembly further comprises a second noise reduction assembly, the second noise reduction assembly comprising a second housing assembled in the frame body, the second housing being provided with a second air inlet communicating with the heat generating assembly and a second air outlet opposite to the air outlet window; the second housing is formed with a second air duct between the second air inlet and the second air outlet; the second noise reduction assembly further comprises a plurality of second noise reduction bins located at the periphery of the second air duct, and the plurality of second noise reduction bins are arranged in series along the extension direction of the second air duct.

[0014] The sound insulation and noise reduction device in the utility model has the beneficial effects compared with the related art that:

[0015] In the utility model, the fan is arranged between the air inlet window and the heat generating assembly, and the air outlet surface of the fan faces the air outlet window, so that the external airflow can be blown from the air inlet window to the heat generating assembly by the fan, and then flow out from the air outlet window after taking away the heat of the heat generating assembly. In addition, during the operation of the fan, the fan will produce a certain noise, and the noise will be transmitted with the airflow, so that the noise reduction assembly is arranged on the airflow flow path, so that the airflow and the noise can pass through the noise reduction assembly together during the airflow flow driven by the fan. By such arrangement, during the airflow flow process and the noise transmission process, the noise will be weakened under the action of the noise reduction assembly, so that the noise reduction purpose can be achieved.

[0016] In addition, the noise reduction assembly comprises a housing assembled in the frame body, the housing is provided with an air inlet and an air outlet, and the housing is formed with an air duct, so that when the fan blows the airflow to flow, the airflow will flow from the air inlet to the air duct and then to the air outlet, realizing the airflow flow in the air duct. Specifically, the air duct is provided with a plurality of noise reduction bins, so that when the airflow flows in the air duct, the noise will be transmitted between the noise reduction bins. Since the noise will be diffracted in the noise reduction bins, the noise will be gradually weakened under the action of the plurality of noise reduction bins, so that the noise reduction purpose can be finally achieved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0018] Figure 1 It is the structure schematic view of the sound insulation and noise reduction device in the utility model embodiment;

[0019] Figure 2 It is the structure schematic view of the first noise reduction assembly in the utility model embodiment.

[0020] Figure 3 is a first partial structure schematic view of the first noise reduction assembly in the embodiment of the utility model, and

[0021] Figure 4 is a second partial structure schematic view of the first noise reduction assembly in the embodiment of the utility model.

[0022] In the drawing, various reference signs represent: 1, frame body; 2, heating assembly; 3, fan; 4, first noise reduction assembly; 41, first shell; 411, first air inlet; 412, first air outlet; 42, first air duct; 421, first parallel section; 422, first connecting section; 43, first noise reduction bin; 44, first flow guide groove; 45, second flow guide groove; 46, third flow guide groove; 5, second noise reduction assembly; 6, fan assembly position. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0025] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0026] Please see Figures 1-4The utility model embodiment provides a kind of sound insulation and noise reduction device, for fan 3 noise reduction, sound insulation and noise reduction device includes frame 1, heating component 2, fan 3 and noise reduction component;Frame 1 is equipped with the air inlet window and air outlet window of intercommunication outside;Heating component 2 is assembled in frame 1;Fan 3 is located in frame 1, fan 3 is used to drive outside airflow from air inlet window to heating component 2, then from heating component 2 to air outlet window;Noise reduction component is assembled in frame 1 and is set on the flow path of airflow;Wherein, noise reduction component includes the shell assembled in frame 1, shell is equipped with air inlet and air outlet, air duct is formed in shell and is used for airflow flow, and noise reduction component also includes the plurality of noise reduction bins of being set in air duct, and the plurality of noise reduction bins are connected in series along the extension direction of air duct.

[0027] In the utility model embodiment, fan 3 is arranged between air inlet window and heating component 2, and the air outlet surface of fan 3 faces air outlet window, therefore, outside airflow can be blown from air inlet window to heating component 2 by fan 3, and flow out from air outlet window after taking away the heat of heating component 2.In addition, during the operation of fan 3, fan 3 will produce certain noise, and noise will be transmitted along with airflow, therefore, noise reduction component is arranged on the flow path of airflow, so that, during the flow of airflow driven by fan 3, airflow and noise can pass through noise reduction component together.Such arrangement, during the flow of airflow and the transmission of noise, noise will be weakened under the action of noise reduction component, so that the purpose of noise reduction can be achieved.

[0028] In addition, noise reduction component includes the shell assembled in frame 1, shell is equipped with air inlet and air outlet, and air duct is formed in shell, therefore, during the flow of airflow blown by fan 3, airflow will flow from air inlet to air duct and then to air outlet, realizing the flow of airflow in air duct.Furthermore, specifically, air duct is provided with multiple noise reduction bins, therefore, during the flow of airflow in air duct, noise will be transmitted between noise reduction bins, and noise will be gradually weakened under the action of multiple noise reduction bins due to the fact that noise will cause sound wave diffraction in noise reduction bin, so that the purpose of noise reduction can be ultimately achieved.

[0029] It should be pointed out that the practical application scenario of sound insulation and noise reduction device is not limited in the utility model embodiment.Exemplarily, heating component 2 can be PCS, various chips and other heat generating devices, and according to the difference of heating component 2, the sound insulation and noise reduction device of the utility model embodiment can be applied to various practical application scenarios.

[0030] Further, exemplarily, frame and / or panel and the like can be arranged in shell, so that air duct from air inlet to air outlet can be defined.

[0031] Further, in some specific embodiments, the noise reduction assembly comprises a first noise reduction assembly 4; the first noise reduction assembly 4 comprises a first shell 41 assembled in the frame 1, the first shell 41 is provided with a first air inlet 411 opposite to and communicating with the air inlet window, and a first air outlet 412 communicating with the heat generating assembly 2; the first shell 41 is formed with a first air duct 42 communicating between the first air inlet 411 and the first air outlet 412; the first noise reduction assembly 4 further comprises a plurality of first noise reduction bins 43 arranged in the first air duct 42, and the plurality of first noise reduction bins 43 are arranged in series along the extension direction of the first air duct 42.

[0032] Specifically, in the first noise reduction assembly 4, the shell corresponds to the first shell 41, the air duct corresponds to the first air duct 42, the air inlet corresponds to the first air inlet 411, the air outlet corresponds to the first air outlet 412, and the noise reduction bin corresponds to the first noise reduction bin 43. And the first air inlet 411 of the first noise reduction assembly 4 is opposite to and communicates with the air inlet window, and the first air outlet 412 communicates with the heat generating assembly 2, so it can be known that the first noise reduction assembly 4 is arranged on the flow path of the airflow from the air inlet window to the heat generating assembly 2. Specifically, the airflow flows from the outside to the air inlet window, and the first air inlet 411 is opposite to the air inlet window, so the airflow flowing from the air inlet window can directly flow to the first air inlet 411, the airflow flowing to the first air inlet 411 can flow in the first air duct 42 to flow to the first air outlet 412, and the first air outlet 412 communicates with the heat generating assembly 2, so the airflow flowing out of the first air outlet 412 will flow through the heat generating assembly 2 to take away the heat of the heat generating assembly 2.

[0033] In addition, the first noise reduction assembly 4 comprises a plurality of first noise reduction bins 43, and the plurality of first noise reduction bins 43 are arranged in series along the extension direction of the first air duct 42, so that when the airflow flows in the first air duct 42, the airflow and the noise will pass through the first noise reduction bin 43, and the noise will be diffracted by sound waves in the first noise reduction bin 43, so that the noise will be gradually weakened under the action of the plurality of first noise reduction bins 43, thereby finally achieving the purpose of noise reduction.

[0034] Further, in some specific embodiments, the fan 3 is arranged at the first air outlet 412, and the sound insulation and noise reduction device further comprises a fan assembly position 6 arranged at the air outlet, and the fan 3 is assembled in the fan assembly position 6, and a buffer structure is further arranged between the fan 3 and the fan assembly position 6.

[0035] Specifically, the fan 3 is arranged at the position of the air outlet, the air outlet is provided with a fan assembly position 6, and the fan 3 can be fixedly assembled in the fan assembly position 6 in a detachable manner such as threaded connection or buckle connection. In addition, a buffering structure can be arranged between the fan assembly position 6 and the fan 3, so as to avoid hard connection between the fan 3 and the fan assembly position 6, cut off the propagation of vibration noise to the outside, and further realize the noise reduction effect. For example, the buffering structure can be foam cotton, sound-absorbing cotton, pearl cotton, shock-absorbing rubber or the like.

[0036] Further, in some specific embodiments, the noise reduction assembly further comprises a second noise reduction assembly 5, the second noise reduction assembly 5 comprising a second shell assembled in the frame 1, the second shell being provided with a second air inlet communicating with the heat generating assembly 2 and a second air outlet opposite to the air outlet window; the second shell is formed with a second air duct between the second air inlet and the second air outlet; the second noise reduction assembly 5 further comprises a plurality of second noise reduction bins located at the periphery of the second air duct, and the plurality of second noise reduction bins are arranged in series along the extension direction of the second air duct.

[0037] Specifically, in the second noise reduction assembly 5, the shell corresponds to the second shell, the air duct corresponds to the second air duct, the air inlet corresponds to the second air inlet, and the air outlet corresponds to the second air outlet. In addition, the second air inlet of the second noise reduction assembly 5 communicates with the heat generating assembly 2, and the second air outlet is opposite to and communicates with the air outlet window. Therefore, it can be seen that the second noise reduction assembly 5 is arranged on the flow path of the airflow from the heat generating assembly 2 to the air outlet window. Specifically, after the airflow carries away the heat of the heat generating assembly 2, it will flow from the second air inlet to the second air duct, flow in the second air duct, flow to the second air outlet, and finally flow directly to the outside through the air outlet window.

[0038] In addition, like the first noise reduction assembly 4, the second noise reduction assembly 5 also comprises a plurality of noise reduction bins. In the second noise reduction assembly 5, the noise reduction bin corresponds to the second noise reduction bin, and the plurality of second noise reduction bins are arranged in series along the extension direction of the second air duct. Therefore, when the airflow flows in the second air duct, the airflow and the noise will pass through the second noise reduction bin, and the noise will be diffracted in the second noise reduction bin, so that the noise will be gradually weakened under the action of the plurality of second noise reduction bins, thereby finally achieving the purpose of noise reduction.

[0039] Further, in some specific embodiments, the sound insulation and noise reduction device comprises the first noise reduction assembly 4 and the second noise reduction assembly 5 simultaneously, at this time, the overall process of airflow flow and noise transmission is as follows: the airflow and noise flow from the air inlet window to the first air inlet 411, and then flow and transmit in the first air duct 42, wherein the noise is subjected to sound insulation and noise reduction by the first noise reduction bin 43, and then the airflow and noise flow from the first air outlet 412 to the heating assembly 2, at this time, the airflow takes away the heat of the heating assembly 2, and the airflow with heat and gradually weakened noise continue to flow to the second air inlet, flow and transmit in the second air duct, wherein the noise is subjected to sound insulation and noise reduction by the second noise reduction bin, and finally the heat and airflow flow out of the outside through the second air outlet and the air outlet window in turn.

[0040] Further, in some specific embodiments, the sound insulation and noise reduction device comprises the first noise reduction assembly 4 and the second noise reduction assembly 5 simultaneously; the fan assembly position 6 can be arranged at the first shell 41, and the fan 3 can be assembled and connected with the first shell 41 and located at the first air outlet 412.

[0041] Specifically, the first noise reduction assembly 4 is arranged on the flow path of the airflow from the air inlet window to the heating assembly 2, and the fan 3 is located at the first air outlet 412, that is, the air inlet side of the fan 3 is towards the first air duct 42 and the first noise reduction bin 43 of the first air duct 42. And the second noise reduction assembly 5 is arranged on the flow path of the airflow from the heating assembly 2 to the air outlet window. And the first air outlet 412 is communicated with the heating assembly 2, so that the air outlet side of the fan 3 is towards the heating assembly 2, that is, the air outlet side of the fan 3 is towards the second noise reduction assembly 5. In this way, the air inlet side and the air outlet side of the fan 3 correspond to the noise reduction bin, so that the noise generated by the air inlet side and the air outlet side of the fan 3 can be eliminated at the same time, the noise of the fan 3 can be prevented from flowing out of the air inlet window or the air outlet window to the outside, and the noise reduction effect is further improved.

[0042] In some specific embodiments, the sound insulation and noise reduction device comprises the first noise reduction assembly 4 and the second noise reduction assembly 5 simultaneously; the fan assembly position 6 can be arranged on the frame 1 or other structural members on the frame 1, and the fan 3 can be assembled and connected with the frame 1 or other structural members on the frame 1 and directly opposite the first air outlet 412.

[0043] Specifically, since the fan 3 is directly opposite the first air outlet 412, and the first noise reduction assembly 4 and the second noise reduction assembly 5 are arranged simultaneously, the noise generated by the air inlet side and the air outlet side of the fan 3 can be eliminated at the same time, the noise of the fan 3 can be prevented from flowing out of the air inlet window or the air outlet window to the outside, and the noise reduction effect is further improved, which will not be described here.

[0044] In some specific embodiments, the sound insulation and noise reduction device comprises the first noise reduction assembly 4 and the second noise reduction assembly 5, and the fan 3 is connected with the frame 1 or other structural members on the frame 1, but the air inlet side of the fan 3 faces the air inlet window, and the air outlet side faces the first air inlet 411. At this time, the fan 3 can also drive the airflow to flow. Moreover, since the air outlet side of the fan 3 is arranged with the first noise reduction assembly 4 and the second noise reduction assembly 5, the noise reduction effect of the air outlet side of the fan 3 can be enhanced. In addition, it can be understood that the noise of the fan 3 is relative to the whole, and therefore, in essence, even if the air inlet side of the fan 3 is not provided with a noise reduction bin, noise reduction can also be achieved to a certain extent, so that the fan 3 has a better noise reduction effect as a whole.

[0045] Further, in some specific embodiments, the sound insulation and noise reduction device only comprises the first noise reduction assembly 4 arranged on the flow path of the airflow from the air inlet window to the heat generating assembly 2. At this time, the whole process of airflow flow and noise transmission is as follows: the airflow and noise flow from the air inlet window to the first air inlet 411, and then flow and transmit in the first air duct 42, the noise is gradually weakened by the plurality of first noise reduction bins 43, and then the airflow flows from the first air outlet 412 to the heat generating assembly 2. At this time, the airflow takes away the heat of the heat generating assembly 2, and the airflow with heat and gradually weakened noise can directly flow out to the outside through the air outlet window.

[0046] In some specific embodiments, the sound insulation and noise reduction device only comprises the first noise reduction assembly 4, and the fan 3 is arranged at the first air outlet 412. At this time, since the fan 3 is located at or opposite to the first air outlet 412, that is, the air inlet side of the fan 3 faces the first noise reduction bin 43 of the first noise reduction assembly 4, and the air outlet side of the fan 3 faces the heat generating assembly 2, the noise of the air inlet side of the fan 3 can be well insulated. In addition, it can be understood that the noise of the fan 3 is relative to the whole, and therefore, in essence, even if the air outlet side of the fan 3 is not provided with a noise reduction bin, noise reduction can also be achieved to a certain extent, so that the fan 3 has a better noise reduction effect as a whole.

[0047] Further, in some specific embodiments, the sound insulation and noise reduction device only comprises the first noise reduction assembly 4, but the fan 3 is arranged at the first air inlet 411, i.e. the fan 3 is located at or opposite to the first air inlet 411, so that the air inlet side of the fan 3 faces the air inlet window and the air outlet side faces the first air duct 42 and the first noise reduction chamber 43 of the first air duct 42. At this time, the fan 3 can also drive the airflow to flow. In addition, since the first noise reduction chamber 43 is arranged at the air outlet side of the fan 3, the noise at the air inlet side of the fan 3 can be well isolated. In addition, it can be understood that in the actual process, the noise of the fan 3 is relatively the whole, so in essence, even if the air inlet side of the fan 3 is not provided with a noise reduction chamber, noise reduction can also be achieved to a certain extent, so that the fan 3 as a whole has better noise reduction effect.

[0048] In some specific embodiments, the sound insulation and noise reduction device only comprises the second noise reduction assembly 5 arranged in the flow path of the airflow from the heat generating assembly 2 to the air outlet window, at this time, the fan 3 is arranged in the frame 1, the air inlet side of the fan 3 is opposite to the air inlet window and the air outlet side is opposite to the heat generating assembly 2 and the second air inlet, so that the second air duct can be formed in the second shell, and the whole process of airflow flow and noise transmission is: the airflow and noise flow from the air inlet window to the heat generating assembly 2 through the fan 3, the airflow carries away the heat of the heat generating assembly 2, then the airflow and noise flow to the second air inlet, flow and transmit in the second air duct, the noise is gradually weakened by the second noise reduction chamber, and finally the heat and airflow flow out of the outside through the second air outlet and the air outlet window.

[0049] Further, in some embodiments, the noise reduction assembly further comprises a plurality of sound insulation walls arranged in the shell and spaced along the extension direction of the air duct, and adjacent two sound insulation walls form a noise reduction chamber.

[0050] Specifically, in the shell, a plurality of sound insulation walls are arranged in the extension direction of the air duct, and each adjacent two sound insulation walls can form a noise reduction chamber. The noise in the noise reduction chamber will be diffracted by the sound insulation wall. Therefore, along the transmission direction of the noise, the noise will be gradually weakened, thereby realizing the noise reduction effect.

[0051] It should be noted that the specific number of noise reduction chambers / sound insulation walls in the embodiments of the present application is not limited, and the actual arrangement can be determined according to the noise reduction demand and the size of the device.

[0052] In some specific embodiments, the first noise reduction assembly 4 comprises a plurality of first sound insulation walls arranged in the first shell 41 and spaced along the extension direction of the first air duct 42, and adjacent two first sound insulation walls form a first noise reduction chamber 43. When the airflow passes through the first air duct 42, the noise is gradually weakened by the plurality of first noise reduction chambers 43, thereby realizing the noise reduction effect, which will not be described herein.

[0053] In some specific embodiments, the second noise reduction assembly 5 comprises a plurality of second sound insulation walls arranged in the second housing and spaced along the extending direction of the second air duct, and two adjacent second sound insulation walls form a second noise reduction chamber. When the airflow passes through the second air duct, the noise is gradually weakened by the plurality of second noise reduction chambers, thereby achieving the noise reduction effect, which will not be described here.

[0054] Further, in some embodiments, the noise reduction assembly further comprises a sound absorption structure arranged on at least part of the sound insulation wall.

[0055] Specifically, the sound absorption structure can be made of sound absorption material, and the specific sound absorption material can be rubber plastic egg cotton, polyester fiber cotton, glass fiber cotton, etc. Through testing, between the plurality of noise reduction chambers, the noise will be reflected in a noise reduction chamber and transmitted to the next noise reduction chamber. Therefore, by arranging the sound absorption structure on the sound insulation wall, the sound reflection can be reduced, and the noise reduction effect can be further improved.

[0056] In some specific embodiments, the first noise reduction assembly 4 further comprises a first sound absorption structure arranged on at least part of the first sound insulation wall. By arranging the first sound absorption structure on the first sound insulation wall, the sound reflection can be reduced, and the noise reduction effect can be further improved, which will not be described here.

[0057] In some specific embodiments, the second noise reduction assembly 5 further comprises a second sound absorption structure arranged on at least part of the second sound insulation wall. By arranging the second sound absorption structure on the second sound insulation wall, the sound reflection can be reduced, and the noise reduction effect can be further improved, which will not be described here.

[0058] Further, in some embodiments, the air duct comprises two spaced and oppositely arranged parallel sections, and a connecting section located between the two parallel sections and connecting the two parallel sections, wherein one parallel section has an inlet end, and the inlet end is connected to the air inlet; the other parallel section has an outlet end, and the outlet end is connected to the air outlet; at least one parallel section is provided with a noise reduction chamber, and the noise reduction chamber is arranged on at least one side of the parallel section.

[0059] Specifically, the air duct is composed of one parallel section, a connecting section and another parallel section in sequence, and the two parallel sections are also oppositely arranged. By arranging the air duct as two oppositely arranged parallel sections and the connecting section connecting the two parallel sections, the occupied volume of the noise reduction assembly can be reduced, and thus the occupied volume of the whole machine can be reduced. In addition, the air inlet and the air outlet are also oppositely arranged. Specifically, one end of the parallel section close to the air inlet is connected to the connecting section, and the other end is the inlet end. One end of the parallel section close to the air outlet is connected to the connecting section, and the other end is the outlet end. In this way, the airflow can directly flow from the air inlet to the inlet end, and then flow through the parallel section close to the air inlet, the connecting section and the parallel section close to the air outlet in sequence, and finally flow out from the outlet end, so as to realize the flow of the airflow in the air duct. In addition, at least one parallel section is provided with a noise reduction bin. And for the parallel section provided with the noise reduction bin, the noise reduction bin is arranged on at least one side of the parallel section with the extension direction of the parallel section as the central axis. Therefore, when the airflow flows in the air duct, the noise reduction bin can isolate the noise.

[0060] In some specific embodiments, the first air duct 42 includes two spaced and oppositely arranged first parallel sections 421, and a first connecting section 422 located between the two first parallel sections 421 and connecting the two first parallel sections 421, wherein one first parallel section 421 has a first inlet end, and the first inlet end communicates with the first air inlet 411; the other first parallel section 421 has a first outlet end, and the first outlet end communicates with the first air outlet 412; at least one first parallel section 421 is provided with a first noise reduction bin 43, and the first noise reduction bin 43 is arranged on at least one side of the first parallel section 421. By arranging the first air duct 42 as two oppositely arranged first parallel sections 421 and the first connecting section 422 connecting the two first parallel sections 421, the occupied volume can be reduced. And the isolation of the noise by the first noise reduction bin 43 in the layout of the first air duct 42 can be realized, which will not be repeated here.

[0061] In some specific embodiments, the second air duct includes two spaced and oppositely arranged second parallel sections, and a second connecting section located between the two second parallel sections and connecting the two second parallel sections, wherein one second parallel section has a second inlet end, and the second inlet end communicates with the second air inlet; the other second parallel section has a second outlet end, and the second outlet end communicates with the second air outlet; at least one second parallel section is provided with a second noise reduction bin, and the second noise reduction bin is arranged on at least one side of the second parallel section. By arranging the second air duct as two oppositely arranged second parallel sections and the second connecting section connecting the two second parallel sections, the occupied volume can be reduced. And the isolation of the noise by the second noise reduction bin in the layout of the second air duct can be realized, which will not be repeated here.

[0062] Further, in some specific embodiments, only one of the parallel sections is provided with corresponding noise reduction bins. With the extension direction of the parallel section as the central axis, a plurality of noise reduction bins are arranged on the left side and / or the right side of the parallel section, so as to achieve the noise reduction effect, which will not be described herein.

[0063] Further, in some specific embodiments, both of the parallel sections are provided with corresponding noise reduction bins. In one of the parallel sections, with the extension direction of the parallel section as the central axis, a plurality of noise reduction bins are arranged on the left side and / or the right side of the parallel section; in the other parallel section, with the extension direction of the parallel section as the central axis, a plurality of noise reduction bins are arranged on the left side and / or the right side of the parallel section, so as to achieve the noise reduction effect, which will not be described herein.

[0064] Further, in some specific embodiments, in addition to the parallel sections being provided with corresponding noise reduction bins, the connecting section can also be provided with noise reduction bins. Similarly, the noise reduction bins can be arranged in series along the extension path of the connecting section, so as to achieve the noise reduction effect, which will not be described herein.

[0065] It can be understood that, in the first noise reduction assembly 4, the parallel section corresponds to the first parallel section 421, and the noise reduction bin corresponds to the first noise reduction bin 43. Therefore, in the first noise reduction assembly 4, for the first noise reduction bin 43, there are various forms of settings to achieve noise reduction, which will not be described herein. Similarly, in the second noise reduction assembly 5, the parallel section corresponds to the second parallel section, and the noise reduction bin corresponds to the second noise reduction bin. Therefore, in the second noise reduction assembly 5, for the second noise reduction bin, there are various forms of settings to achieve noise reduction, which will not be described herein.

[0066] Further, in some embodiments, the noise reduction assembly is provided with a first flow guide groove 44 connected between the air inlet and the inlet end; the first flow guide groove 44 extends from the air inlet to the inlet end; and / or, the noise reduction assembly is provided with a second flow guide groove 45 connected between the outlet end and the air outlet; the second flow guide groove 45 extends from the outlet end to the air outlet; and / or, the noise reduction assembly is provided with a third flow guide groove 46 located in the connecting section and connected between the two parallel sections, the third flow guide groove 46 has two end portions, and the two end portions extend to the two parallel sections.

[0067] Specifically, the transverse section of the first flow guide groove 44, the second flow guide groove 45 and the third flow guide groove 46 is a hole-shaped structure penetrating in the height direction, with the extension direction of the parallel section as the length direction. The air inlet direction of the air inlet and the air flow direction of the corresponding parallel section are orthogonal; the air outlet direction of the air outlet and the air flow direction of the corresponding parallel section are orthogonal; the connecting section is connected to two oppositely arranged parallel sections, that is, the air flow from one parallel section to another parallel section is a curved flow. Therefore, the air flow between the air inlet and the corresponding parallel section, the air flow between the air outlet and the corresponding parallel section, and the air flow in the connecting section are all variable diameter section flows in the air duct. However, the air flow in the variable diameter section may cause vortex of the air flow. Therefore, the first flow guide groove 44 is arranged between the air inlet and the inlet end, so that the first flow guide groove 44 can guide the air flow to flow smoothly from the air inlet to the inlet end; the third flow guide groove 46 is arranged in the connecting section, so that the air flow can flow smoothly in the connecting section and flow smoothly to the two parallel sections; and the second flow guide groove 45 is arranged between the outlet end and the air outlet, so that the second flow guide groove 45 can guide the air flow to flow smoothly from the outlet end to the air outlet. In this way, the air resistance of the air duct can be reduced, so that the air speed can be improved. Further, in the case of improved air speed, the cross-sectional area of the air duct can be reduced, so that the occupied volume of the noise reduction assembly can be reduced.

[0068] In addition, for example, with the extension direction of the parallel section as the length direction, two first flow guide plates oppositely arranged in the height direction can be arranged at the air inlet and the inlet end, and a plurality of first flow guide grooves 44 are arranged on the two first flow guide plates; and / or two second flow guide plates oppositely arranged in the height direction can be arranged at the air outlet and the outlet end, and a plurality of second flow guide grooves 45 are arranged on the two second flow guide plates; and / or a third flow guide plate can be arranged at the connecting section, and a plurality of third flow guide grooves 46 are arranged on the third flow guide plate. In this way, the structural strength can be improved.

[0069] In addition, it should be noted that the embodiments of the utility model are not limited to the specific structure of the flow guide grooves arranged in the noise reduction assembly. In some embodiments, the air duct is formed by the panels oppositely arranged in the height direction, and the flow guide grooves can be arranged on the panels. In some embodiments, the flow guide grooves can also be arranged on the housing.

[0070] Further, it is worth noting that the embodiments of the utility model only limit the extension direction of the first flow guide groove 44, the second flow guide groove 45 and the third flow guide groove 46, but do not limit the extension length and the number of the first flow guide groove 44, the second flow guide groove 45 and the third flow guide groove 46, which can be set according to actual needs.

[0071] In some specific embodiments, the first noise reduction assembly 4 is provided with a first flow guide groove 44 connecting the first air inlet 411 and the first inlet end; the first flow guide groove 44 extends from the first air inlet 411 to the first inlet end; and / or, the first noise reduction assembly 4 is provided with a second flow guide groove 45 connecting the first outlet end and the first air outlet 412; the second flow guide groove 45 extends from the first outlet end to the first air outlet 412; and / or, the first noise reduction assembly 4 is provided with a third flow guide groove 46 located in the first connecting section 422 and connecting the two first parallel sections 421, the third flow guide groove 46 has two end portions extending to the two first parallel sections 421. Through the guiding effect of the flow guide grooves, the flow of the air at the turning and changing sections can be smoother, so as to reduce the air resistance and improve the air speed; further, the cross-sectional area of the air duct can be reduced, so as to reduce the occupied volume of the noise reduction assembly, which will not be described here.

[0072] In some specific embodiments, the second noise reduction assembly 5 is provided with a first flow guide groove 44 connecting the second air inlet and the second inlet end; the first flow guide groove 44 extends from the second air inlet to the second inlet end; and / or, the second noise reduction assembly 5 is provided with a second flow guide groove 45 connecting the second outlet end and the second air outlet; the second flow guide groove 45 extends from the second outlet end to the second air outlet; and / or, the second noise reduction assembly 5 is provided with a third flow guide groove 46 located in the second connecting section and connecting the two second parallel sections, the third flow guide groove 46 has two end portions extending to the two second parallel sections. Through the guiding effect of the flow guide grooves, the flow of the air at the turning and changing sections can be smoother, so as to reduce the air resistance and improve the air speed; further, the cross-sectional area of the air duct can be reduced, so as to reduce the occupied volume of the noise reduction assembly, which will not be described here.

[0073] Further, in some embodiments, the first flow guide groove 44 is arc-shaped; and / or, the second flow guide groove 45 is arc-shaped; and / or, the third flow guide groove 46 is semi-circular.

[0074] Specifically, the air inlet direction of the air inlet and the airflow flowing direction of the corresponding parallel section are orthogonal, thus, by setting the first flow guide groove 44 as an arc shape, the first flow guide groove 44 is curvedly extended from the air inlet to the inlet end of the corresponding parallel section, so that the airflow can smoothly flow from the air inlet to the opening end of the corresponding parallel section, and then smoothly flow to the corresponding parallel section. In addition, the air outlet direction of the air outlet and the airflow flowing direction of the corresponding parallel section are orthogonal, thus, by setting the second flow guide groove 45 as an arc shape, the second flow guide groove 45 is curvedly extended from the outlet end of the corresponding parallel section to the air outlet, so that the airflow can smoothly flow from the outlet end of the corresponding parallel section to the air outlet. Furthermore, the connecting section is connected to two oppositely arranged parallel sections, that is, the airflow flows from one parallel section to another parallel section in a curved manner, thus, the third flow guide groove 46 is set as a semicircular shape, so that the airflow can smoothly flow from one parallel section to another parallel section. In summary, the air resistance of the air duct can be reduced in the process of the airflow from the air inlet to the air duct, so that the air speed can be improved.

[0075] It should be noted that the first flow guide groove 44, the second flow guide groove 45 and the third flow guide groove 46 can also have other shapes. For example, the first flow guide groove 44 and the second flow guide groove 45 can have a straight strip shape, a shape, etc., and the third flow guide groove 46 can have a shape, a U shape, a shape, a shape, a shape, etc.

[0076] It can be understood that the arrangement structure of each flow guide groove in the first noise reduction assembly 4 can be adaptively adjusted, and the arrangement structure of each flow guide groove in the second noise reduction assembly can also be adaptively adjusted, which will not be described here.

[0077] Further, in some embodiments, the air duct includes a main air duct and a noise reduction space, wherein a plurality of noise reduction bins form the noise reduction space; the noise reduction assembly further includes a sound-permeable wind-blocking structure, which is arranged along the extension direction of the air duct, and the sound-permeable wind-blocking structure is arranged between the air duct and the noise reduction space.

[0078] Specifically, in the noise reduction assembly, taking the extension direction of the air duct as the central axis, the left side, the middle side and the right side of the air duct can be sequentially formed with the main air duct or the noise reduction space. The embodiments of the present application are not specifically limited. For example, in some embodiments, the left side of the air duct is the noise reduction space, and the middle side and the right side of the air duct are the main air duct; in some embodiments, the left side and the right side of the air duct are the noise reduction space, and the middle side of the air duct is the main air duct; in some specific embodiments, the left side and the middle side of one of the parallel sections of the air duct are the main air duct, and the right side of the parallel section is the noise reduction space, while the left side and the right side of the other parallel section of the air duct are the noise reduction space, and the middle side of the parallel section is the main air duct.

[0079] The noise reduction space is provided with a plurality of sound insulation walls arranged at intervals along the extension direction of the air duct. Adjacent two sound insulation walls form a noise reduction bin. The noise reduction bin is open on the side facing the main air duct. Therefore, when the airflow flows in the air duct, the airflow and the noise will pass through the noise reduction bin along the extension direction of the air duct. The noise will diffract in the noise reduction bin, so that the noise will be gradually weakened under the action of a plurality of noise reduction bins, thereby achieving the purpose of noise reduction.

[0080] In addition, along the extension direction of the air duct, the airflow can flow smoothly in the main air duct with small air resistance. However, when the airflow flows between the noise reduction bins, vortex will be generated to greatly increase the air resistance. Therefore, by arranging the sound-permeable wind-blocking structure between the noise reduction space and the main air duct, the sound-permeable and wind-blocking effects can be achieved, that is, the noise can enter the noise reduction bin to be weakened, and the airflow can be hindered from entering the noise reduction bin, so that most of the airflow can be concentrated in the main air duct to avoid the increase of air resistance. In addition, the sound-permeable wind-blocking structure can be, for example, cotton cloth or non-woven fabric.

[0081] In some specific embodiments, the first air duct 42 includes a first main air duct and a first noise reduction space, wherein a plurality of first noise reduction bins 43 form the first noise reduction space. The first noise reduction assembly 4 further includes a first sound-permeable wind-blocking structure arranged along the extension direction of the first air duct 42 and disposed between the first air duct 42 and the first noise reduction space. The sound-permeable wind-blocking structure can achieve the sound-permeable and wind-blocking effects, that is, the noise can enter the first noise reduction bin 43 to be weakened, and the airflow can be hindered from entering the first noise reduction bin 43, so that most of the airflow can be concentrated in the first main air duct to avoid the increase of air resistance.

[0082] In some specific embodiments, the second air duct includes a second main air duct and a second noise reduction space, wherein a plurality of second noise reduction bins form the second noise reduction space. The second noise reduction assembly 5 further includes a second sound-permeable wind-blocking structure arranged along the extension direction of the second air duct and disposed between the second air duct and the second noise reduction space. The sound-permeable wind-blocking structure can achieve the sound-permeable and wind-blocking effects, that is, the noise can enter the second noise reduction bin to be weakened, and the airflow can be hindered from entering the second noise reduction bin, so that most of the airflow can be concentrated in the second main air duct to avoid the increase of air resistance.

[0083] In the above embodiments, the description of each embodiment focuses on different aspects. The parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0084] The above is the description of the technical scheme provided by the utility model, for the technical personnel in the art, according to the utility model embodiment's thinking, there will be the change in specific implementation and application range, and the above, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A sound insulation and noise reduction device for fan noise reduction, characterized in that, The sound insulation and noise reduction device comprises: a frame body provided with an air inlet window and an air outlet window for communicating with the outside; a heating assembly arranged in the frame body; a fan arranged in the frame body, the fan being configured to drive air flow from the air inlet window to the heating assembly and then from the heating assembly to the air outlet window; a noise reduction assembly arranged in the frame body and on the flow path of the air flow; the noise reduction assembly comprises a housing arranged in the frame body, the housing being provided with an air inlet and an air outlet, and a wind channel formed in the housing and communicating with the air inlet and the air outlet and configured to allow air flow, the noise reduction assembly further comprises a plurality of noise reduction bins arranged in the wind channel and connected in series along the extension direction of the wind channel.

2. The soundproofing and noise reduction device of claim 1, wherein, The noise reduction assembly further comprises a plurality of sound insulation walls arranged in the housing and spaced along the extension direction of the wind channel, and two adjacent sound insulation walls form a noise reduction bin.

3. The soundproofing and noise reducing device of claim 2, wherein, The noise reduction assembly further comprises a sound absorption structure arranged on at least part of the sound insulation walls.

4. The soundproofing and noise reducing device of claim 1, wherein, The wind channel comprises two spaced and opposite parallel sections and a connecting section located between the two parallel sections and communicating with the two parallel sections, one of the parallel sections has an inlet end, and the inlet end communicates with the air inlet; the other parallel section has an outlet end, and the outlet end communicates with the air outlet; at least one of the parallel sections is provided with the noise reduction bin, and the noise reduction bin is arranged on at least one side of the parallel section.

5. The sound insulation and noise reduction device according to claim 4, wherein the noise reduction assembly is provided with a first flow guide groove communicating with the air inlet and the inlet end, the first flow guide groove extending from the air inlet to the inlet end; and / or, the noise reduction assembly is provided with a second flow guide groove communicating with the outlet end and the air outlet, the second flow guide groove extending from the outlet end to the air outlet; and / or, the noise reduction assembly is provided with a third flow guide groove located in the connecting section and communicating with the two parallel sections, the third flow guide groove having two ends, and the two ends extending to the two parallel sections.

6. The soundproofing and noise reducing device of claim 5, wherein, The first flow guide groove is arc-shaped; and / or, the second flow guide groove is arc-shaped; and / or, the third flow guide groove is semicircular.

7. The sound insulation and noise reduction device according to claim 1, wherein the wind channel comprises a main wind channel and a noise reduction space, wherein the plurality of noise reduction bins form the noise reduction space; the noise reduction assembly further comprises a sound-permeable wind blocking structure arranged along the extension direction of the wind channel, and the sound-permeable wind blocking structure is arranged between the wind channel and the noise reduction space.

8. The soundproofing and noise reducing device of claim 1, wherein, The noise reduction assembly comprises a first noise reduction assembly; the first noise reduction assembly comprises a first shell assembled in the frame body, the first shell is provided with a first air inlet communicated with the air inlet window and a first air outlet communicated with the heat generating assembly; the first shell is formed with a first air duct communicated between the first air inlet and the first air outlet; the first noise reduction assembly further comprises a plurality of first noise reduction bins arranged in the first air duct, and the first noise reduction bins are arranged in series along the extension direction of the first air duct.

9. The soundproofing and noise reducing device of claim 8, wherein, The fan is arranged at the first air outlet, and the sound insulation and noise reduction device further comprises a fan assembly position arranged at the first air outlet, the fan is assembled in the fan assembly position, and a buffer structure is further arranged between the fan and the fan assembly position.

10. The soundproofing and noise reducing device of claim 1, wherein, The noise reduction assembly further comprises a second noise reduction assembly, the second noise reduction assembly comprises a second shell assembled in the frame body, the second shell is provided with a second air inlet communicated with the heat generating assembly and a second air outlet opposite to the air outlet window; the second shell is formed with a second air duct between the second air inlet and the second air outlet; the second noise reduction assembly further comprises a plurality of second noise reduction bins arranged on the periphery of the second air duct, and the second noise reduction bins are arranged in series along the extension direction of the second air duct.

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