Sound insulation and noise reduction device

Abstract

The invention provides a sound insulation and noise reduction device used for fan noise reduction, and the sound insulation and noise reduction device comprises 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 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 invention belongs to the technical field of noise reduction, and in particular relates to a sound insulation and noise reduction device. Background Art

[0002] Fans play an important role in production and life. For example, air-cooled or liquid-cooled energy storage systems, internal PCS (Power Conversion System, energy storage converter) heat dissipation or external air conditioning operation all require the fan to be started. However, during the operation of the fan, a certain amount of noise will be generated. This noise is proportional to the number of fans and the speed of rotation. The noise will cause a certain degree of distress to people's physical and mental health. Therefore, it is necessary to solve the noise problem of the fan. Summary of the invention

[0003] The technical purpose of the present invention is to provide a sound insulation and noise reduction device to solve the noise problem of the fan.

[0004] To solve the above technical problems, the present invention is implemented as follows: a sound insulation and noise reduction device for fan noise reduction, the sound insulation and noise reduction device comprising a frame, a heating component, a fan and a noise reduction component; the frame is provided with an air inlet window and an air outlet window connected to the outside world; the heating component is assembled in the frame; the fan is located in the frame, and the fan is used to drive the external airflow from the air inlet window to the heating component, and then from the heating component to the air outlet window; the noise reduction component is assembled in the frame and arranged on the flow path of the airflow; wherein the noise reduction component comprises a shell assembled in the frame, the shell is provided with an air inlet and an air outlet, an air duct connecting the air inlet and the air outlet and used for airflow is formed in the shell, and the noise reduction component also comprises a plurality of noise reduction chambers arranged in the air duct, and the plurality of noise reduction chambers are arranged in series along the extension direction of the air duct.

[0005] Furthermore, in some embodiments, the noise reduction component also includes a plurality of sound insulation walls disposed in the shell and arranged at intervals along the extension direction of the air duct, and two adjacent sound insulation walls form a noise reduction chamber.

[0006] Furthermore, in some embodiments, the noise reduction assembly also includes a sound absorbing structure disposed on at least a portion of the sound insulation wall.

[0007] Further, in some embodiments, the air duct includes two parallel sections that are spaced apart and arranged opposite to each other, and a connecting section located between and connecting the two parallel sections, wherein one of the parallel sections 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; the noise reduction chamber 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 chamber.

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

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

[0010] Furthermore, in some embodiments, the air duct includes a main air duct and a noise reduction space, wherein a plurality of the noise reduction chambers form the noise reduction space; the noise reduction component also includes a sound-transmitting wind shielding structure, the sound-transmitting wind shielding structure is arranged along the extension direction of the air duct, and the sound-transmitting wind shielding structure is disposed between the air duct and the noise reduction space.

[0011] Further, in some embodiments, the noise reduction component includes a first noise reduction component; the first noise reduction component includes a first shell assembled in the frame, the first shell is provided with a first air inlet opposite to and connected to the air inlet window, and a first air outlet connected to the heat-generating component, and the fan is arranged at the first air outlet; a first air duct connecting the first air inlet and the first air outlet is formed in the first shell; the first noise reduction component also includes a plurality of first noise reduction chambers arranged in the first air duct, and the plurality of first noise reduction chambers are arranged in series along the extension direction of the first air duct.

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

[0013] Furthermore, in some embodiments, the noise reduction component also includes a second noise reduction component, the second noise reduction component includes a second shell assembled in the frame, the second shell is provided with a second air inlet connected to the heat-generating component, and a second air outlet opposite to the air outlet window; a second air duct is formed in the second shell between the second air inlet and the second air outlet; the second noise reduction component also includes a plurality of second noise reduction chambers located on the periphery of the second air duct, and the plurality of second noise reduction chambers are arranged in series along the extension direction of the second air duct.

[0014] Compared with the related art, the sound insulation and noise reduction device of the present invention has the following beneficial effects:

[0015] In the present invention, the fan is arranged between the air inlet window and the heating component, 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 heating component by the fan, and flow out from the air outlet window after taking away the heat of the heating component. In addition, during the operation of the fan, the fan will generate a certain amount of noise, and the noise will be transmitted with the airflow. Therefore, a noise reduction component is arranged on the flow path of the airflow, so that in the process of the fan driving the airflow to flow, the airflow and the noise can pass through the noise reduction component together. With such an arrangement, during the flow process of the airflow and the transmission process of the noise, the noise will be weakened under the action of the noise reduction component, thereby achieving the purpose of noise reduction.

[0016] In addition, the noise reduction component includes a shell assembled in the frame, the shell is provided with an air inlet and an air outlet, and an air duct is formed in the shell, so when the fan blows the airflow, the airflow will flow from the air inlet to the air duct and then to the air outlet, so that the airflow flows in the air duct. Furthermore, specifically, the air duct is provided with a plurality of noise reduction chambers, so when the airflow flows in the air duct, noise will be transmitted between the noise reduction chambers, and since the noise will be diffracted by sound waves in the noise reduction chamber, the noise will gradually weaken under the action of the plurality of noise reduction chambers, so that the purpose of noise reduction can be finally achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 is a schematic structural diagram of a sound insulation and noise reduction device according to an embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of a first noise reduction component in an embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of the first part of the structure of the first noise reduction component in an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the second part of the structure of the first noise reduction component in an embodiment of the present invention.

[0022] In the accompanying drawings, each figure mark represents: 1. frame; 2. heating component; 3. fan; 4. first noise reduction component; 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 chamber; 44. first guide groove; 45. second guide groove; 46. third guide groove; 5. second noise reduction component; 6. fan assembly position. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] See also Figure 1-4The embodiment of the present invention provides a sound insulation and noise reduction device for reducing the noise of a fan 3, and the sound insulation and noise reduction device comprises a frame 1, a heating component 2, a fan 3 and a noise reduction component; the frame 1 is provided with an air inlet window and an air outlet window connected to the outside; the heating component 2 is assembled in the frame 1; the fan 3 is located in the frame 1, and the fan 3 is used to drive the external airflow to flow from the air inlet window to the heating component 2, and then from the heating component 2 to the air outlet window; the noise reduction component is assembled in the frame 1 and arranged on the flow path of the airflow; wherein the noise reduction component comprises a shell assembled in the frame 1, the shell is provided with an air inlet and an air outlet, an air duct connecting the air inlet and the air outlet and used for airflow is formed in the shell, and the noise reduction component also comprises a plurality of noise reduction chambers arranged in the air duct, and the plurality of noise reduction chambers are arranged in series along the extension direction of the air duct.

[0027] In the embodiment of the present invention, the fan 3 is arranged between the air inlet window and the heating component 2, and the air outlet surface of the fan 3 faces the air outlet window, so that the external airflow can be blown from the air inlet window to the heating component 2 through the fan 3, and flow out from the air outlet window after taking away the heat of the heating component 2. In addition, during the operation of the fan 3, the fan 3 will generate a certain amount of noise, and the noise will be transmitted with the airflow. Therefore, a noise reduction component is provided on the flow path of the airflow, so that in the process of the fan 3 driving the airflow to flow, the airflow and the noise can pass through the noise reduction component together. In this way, during the flow process of the airflow and the transmission process of the noise, the noise will be reduced under the action of the noise reduction component, thereby achieving the purpose of noise reduction.

[0028] In addition, the noise reduction component includes a shell assembled in the frame 1, the shell is provided with an air inlet and an air outlet, and an air duct is formed in the shell, so when the fan 3 blows the airflow, the airflow will flow from the air inlet to the air duct and then to the air outlet, so that the airflow flows in the air duct. Furthermore, specifically, the air duct is provided with a plurality of noise reduction chambers, so when the airflow flows in the air duct, noise will be transmitted between the noise reduction chambers, and since the noise will be diffracted by sound waves in the noise reduction chamber, the noise will gradually weaken under the action of the plurality of noise reduction chambers, so that the purpose of noise reduction can be finally achieved.

[0029] It should be noted that the embodiments of the present invention do not limit the actual application scenarios of the sound insulation and noise reduction device. For example, the heating component 2 can be a heating device such as a PCS or various chips, and depending on the difference in the heating component 2, the sound insulation and noise reduction device of the embodiments of the present invention can be applied to various actual application scenarios.

[0030] Furthermore, illustratively, a frame and / or a panel may be provided in the housing so as to define an air duct from the air inlet to the air outlet.

[0031] Further, in some specific embodiments, the noise reduction component includes a first noise reduction component 4; the first noise reduction component 4 includes a first shell 41 assembled in the frame 1, the first shell 41 is provided with a first air inlet 411 opposite to and connected to the air inlet window, and a first air outlet 412 connected to the heating component 2; a first air duct 42 connecting the first air inlet 411 and the first air outlet 412 is formed in the first shell 41; the first noise reduction component 4 also includes a plurality of first noise reduction chambers 43 arranged in the first air duct 42, and the plurality of first noise reduction chambers 43 are arranged in series along the extension direction of the first air duct 42.

[0032] Specifically, in the first noise reduction component 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 chamber corresponds to the first noise reduction chamber 43. Moreover, the first air inlet 411 of the first noise reduction component 4 is directly opposite to and connected to the air inlet window, and the first air outlet 412 is connected to the heating component 2. Therefore, it can be seen that the first noise reduction component 4 is arranged on the flow path of the airflow from the air inlet window to the heating component 2. Specifically, the airflow flows from the outside to the air inlet window, and the first air inlet 411 is directly opposite to the air inlet window. Therefore, the airflow flowing in from the air inlet window can flow directly to the first air inlet 411, and 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 is connected to the heating component 2. Therefore, the airflow flowing out from the first air outlet 412 will flow through the heating component 2 to take away the heat of the heating component 2.

[0033] In addition, the first noise reduction component 4 includes a plurality of first noise reduction chambers 43, and the plurality of first noise reduction chambers 43 are arranged in series along the extension direction of the first air duct 42. Therefore, when the airflow flows in the first air duct 42, the airflow and noise will pass through the first noise reduction chamber 43, and the noise will undergo sound wave diffraction in the first noise reduction chamber 43, so that the noise will gradually weaken under the action of the plurality of first noise reduction chambers 43, thereby ultimately achieving the purpose of noise reduction.

[0034] Furthermore, in some specific embodiments, the fan 3 is arranged at the first air outlet 412, the sound insulation and noise reduction device also includes a fan assembly position 6 arranged at the air outlet, the fan 3 is assembled at the fan assembly position 6, and a buffer structure is also 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, and 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 by a detachable manner such as a threaded connection or a snap connection. In addition, a buffer structure can be arranged between the fan assembly position 6 and the fan 3, so as to avoid a hard connection between the fan 3 and the fan assembly position 6, and to block the vibration noise from being transmitted to the outside, thereby further achieving a noise reduction effect. Exemplarily, the buffer structure can be foam cotton, sound-absorbing cotton, pearl cotton, shock-absorbing rubber, etc.

[0036] Furthermore, in some specific embodiments, the noise reduction component also includes a second noise reduction component 5, the second noise reduction component 5 includes a second shell assembled in the frame 1, the second shell is provided with a second air inlet connected to the heating component 2, and a second air outlet opposite to the air outlet window; a second air duct is formed in the second shell between the second air inlet and the second air outlet; the second noise reduction component 5 also includes a plurality of second noise reduction chambers located on the periphery of the second air duct, and the plurality of second noise reduction chambers are arranged in series along the extension direction of the second air duct.

[0037] Specifically, in the second noise reduction component 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 component 5 is connected to the heating component 2, and the second air outlet is directly opposite to and connected to the air outlet window. Therefore, it can be seen that the second noise reduction component 5 is arranged on the flow path of the airflow from the heating component 2 to the air outlet window. Specifically, after the airflow takes away the heat of the heating component 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 component 4, the second noise reduction component 5 also includes a plurality of noise reduction chambers. In the second noise reduction component 5, the noise reduction chamber corresponds to the second noise reduction chamber, and the plurality of second noise reduction chambers 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 chamber, and the noise will diffract in the second noise reduction chamber, so that the noise will gradually weaken under the action of the plurality of second noise reduction chambers, thereby finally achieving the purpose of noise reduction.

[0039] Furthermore, in some specific embodiments, the sound insulation and noise reduction device also includes a first noise reduction component 4 and a second noise reduction component 5. At this time, the overall process of airflow flow and noise transmission is: 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 passes through the sound insulation and noise reduction of the first noise reduction chamber 43, and the airflow and noise flow from the first air outlet 412 to the heating component 2. At this time, the airflow takes away the heat of the heating component 2, and the airflow with heat and the gradually weakened noise continue to flow to the second air inlet, flow and transmit in the second air duct, wherein the noise passes through the sound insulation and noise reduction of the second noise reduction chamber, and finally the heat and airflow flow out to the outside through the second air outlet and the air outlet window in turn.

[0040] Furthermore, in some specific implementable embodiments, the sound insulation and noise reduction device includes both a first noise reduction component 4 and a second noise reduction component 5; the fan assembly position 6 can be set at the first shell 41, and the fan 3 can be assembled and connected to the first shell 41 and located at the first air outlet 412.

[0041] Specifically, the first noise reduction component 4 is arranged on the flow path of the airflow from the air inlet window to the heating component 2, and the fan 3 is located at the first air outlet 412, that is, the air inlet side of the fan 3 is toward the first air duct 42 of the first noise reduction component 4 and the first noise reduction chamber 43 of the first air duct 42. The second noise reduction component 5 is arranged on the flow path of the airflow from the heating component 2 to the air outlet window. The first air outlet 412 is connected to the heating component 2, and the air outlet side of the fan 3 is toward the heating component 2, that is, the air outlet side of the fan 3 is toward the second noise reduction component 5. In this way, the air inlet side and the air outlet side of the fan 3 both have corresponding noise reduction chambers. At this time, the noise generated by the air inlet side and the air outlet side of the fan 3 can be eliminated at the same time, and the noise of the fan 3 can be prevented from flowing out to the outside from the air inlet window or the air outlet window, further improving the noise reduction effect.

[0042] In some specific implementable embodiments, the sound insulation and noise reduction device includes a first noise reduction component 4 and a second noise reduction component 5 at the same time; the fan assembly position 6 can be set on the frame 1 or other structural parts on the frame 1, and the fan 3 can be assembled and connected with the frame 1 or other structural parts on the frame 1 and directly opposite the first air outlet 412.

[0043] Specifically, since the fan 3 is directly opposite to the first air outlet 412 and is provided with a first noise reduction component 4 and a second noise reduction component 5, the noise generated on the air inlet side and the air outlet side of the fan 3 can be eliminated at the same time, and the noise of the fan 3 can be prevented from flowing out to the outside through the air inlet window or the air outlet window, thereby further improving the noise reduction effect, which will not be elaborated here.

[0044] In some specific implementable embodiments, the sound insulation and noise reduction device includes both the first noise reduction component 4 and the second noise reduction component 5, and the fan 3 can be connected to 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 first noise reduction component 4 and the second noise reduction component 5 are arranged on the air outlet side of the fan 3 at the same time, the noise reduction effect on the air outlet side of the fan 3 can be enhanced. In addition, it can be understood that in the actual process, the noise of the fan 3 is relative to the whole. Therefore, in fact, even if the noise reduction chamber is not set on the air inlet side of the fan 3, noise reduction can be achieved to a certain extent, so that the fan 3 has a better noise reduction effect as a whole.

[0045] Furthermore, in some specific embodiments, the sound insulation and noise reduction device only includes a first noise reduction component 4 arranged on the flow path of the airflow from the air inlet window to the heating component 2. At this time, the overall process of airflow flow and noise transmission is: 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 multiple first noise reduction chambers 43, and the airflow then flows from the first air outlet 412 to the heating component 2. At this time, the airflow takes away the heat of the heating component 2, and the airflow with heat and the gradually weakened noise can directly flow out to the outside through the air outlet window.

[0046] In some specific implementations, the sound insulation and noise reduction device only includes the first noise reduction component 4, and the fan 3 is arranged at the first air outlet 412. At this time, since the fan 3 is located at the first air outlet 412 or directly opposite to the first air outlet 412, that is, the air inlet side of the fan 3 is facing the first noise reduction chamber 43 of the first noise reduction component 4, and the air outlet side of the fan 3 is facing the heating component 2, the noise on 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 relative to the whole, therefore, in fact, even if the noise reduction chamber is not arranged on the air outlet side of the fan 3, noise reduction can be achieved to a certain extent, so that the fan 3 has a better noise reduction effect as a whole.

[0047] Further, in some other specific embodiments, the sound insulation and noise reduction device only includes the first noise reduction component 4, but the fan 3 is arranged at the first air inlet 411, that is, the fan 3 is located at the first air inlet 411 or directly 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 air flow. In addition, since the first noise reduction chamber 43 is arranged on the air outlet side of the fan 3, the noise on 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 relative to the whole. Therefore, in fact, even if the noise reduction chamber is not arranged on the air inlet side of the fan 3, noise reduction can be achieved to a certain extent, so that the fan 3 has a better noise reduction effect as a whole.

[0048] In some specific embodiments, the sound insulation and noise reduction device only includes a second noise reduction component 5 arranged on the flow path of the airflow from the heating component 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 heating component 2 and the second air inlet, so that a second air duct can be formed in the second shell. The overall process of airflow flow and noise transmission is: the airflow and noise flow directly from the air inlet window through the fan 3 to the heating component 2, the airflow takes away the heat of the heating component 2, and 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 pass through the second air outlet and the air outlet window in turn and flow out to the outside.

[0049] Furthermore, in some embodiments, the noise reduction assembly also includes a plurality of sound insulation walls disposed in the shell and arranged at intervals along the extension direction of the air duct, and two adjacent sound insulation walls form a noise reduction chamber.

[0050] Specifically, in the housing, a plurality of sound insulation walls are arranged at intervals along the extension direction of the air duct, and each two adjacent sound insulation walls can form a noise reduction chamber. In the noise reduction chamber, the noise will be diffracted by the sound insulation walls. Therefore, along the transmission direction of the noise, the noise will gradually weaken, thereby achieving a noise reduction effect.

[0051] It should be noted that the embodiment of the present invention does not limit the specific number of noise reduction chambers / soundproof walls, and the actual setting can be determined according to the noise reduction requirements and the size of the device.

[0052] In some specific embodiments, the first noise reduction component 4 includes a plurality of first sound insulation walls disposed in the first shell 41 and arranged at intervals along the extension direction of the first air duct 42, and two adjacent 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 multiple first noise reduction chambers 43, thereby achieving a noise reduction effect, which will not be described in detail here.

[0053] In some specific embodiments, the second noise reduction component 5 includes a plurality of second sound insulation walls disposed in the second shell and arranged at intervals along the extension 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 a noise reduction effect, which will not be described in detail here.

[0054] Furthermore, in some embodiments, the noise reduction assembly also includes a sound absorbing structure disposed on at least a portion of the sound insulation wall.

[0055] Specifically, the sound-absorbing structure can be made of sound-absorbing material, and the specific sound-absorbing material can be rubber-plastic egg cotton, polyester fiber cotton, glass fiber cotton, etc. After testing, between multiple noise reduction chambers, the noise will be reflected in one noise reduction chamber and transmitted to the next noise reduction chamber. Therefore, by arranging a sound-absorbing 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 component 4 further includes a first sound absorbing structure disposed on at least part of the first sound insulation wall. By arranging the first sound absorbing structure on the first sound insulation wall, sound reflection can be reduced and the noise reduction effect can be further improved, which will not be described in detail here.

[0057] In some specific embodiments, the second noise reduction component 5 further includes a second sound absorbing structure disposed on at least part of the second sound insulation wall. By arranging the second sound absorbing structure on the second sound insulation wall, sound reflection can be reduced and the noise reduction effect can be further improved, which will not be described in detail here.

[0058] Further, in some embodiments, the air duct includes two parallel sections that are spaced apart and arranged opposite to each other, 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 provided on at least one of the two sides 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 arranged relatively. By setting the air duct as two parallel sections arranged relatively and a connecting section connecting the two parallel sections, the occupied volume of the noise reduction component can be reduced, thereby reducing the occupied volume of the whole machine. In addition, the air inlet and the air outlet are also arranged relatively. Specifically, one end of the parallel section near the air inlet is connected to the connecting section and the other end is the inlet end, and one end of the parallel section near the air outlet is connected to the connecting section and the other end is the outlet end. In this way, the airflow can flow directly from the air inlet to the inlet end, and then circulate in the parallel section near the air inlet, the connecting section and the parallel section near the air outlet in sequence, and finally flow out from the outlet end, thereby realizing the circulation of the airflow in the air duct. In addition, at least one parallel section is provided with a noise reduction chamber. And for the parallel section provided with the noise reduction chamber, the extension direction of the parallel section is taken as the central axis, and the noise reduction chamber is arranged on at least one of the two sides of the parallel section. Therefore, when the airflow circulates in the air duct, the noise reduction chamber can isolate the noise.

[0060] In some specific embodiments, the first air duct 42 includes two first parallel sections 421 that are spaced apart and arranged oppositely, and a first connecting section 422 that is located between the two first parallel sections 421 and connects the two first parallel sections 421, wherein one first parallel section 421 has a first inlet end, and the first inlet end is connected to the first air inlet 411; the other first parallel section 421 has a first outlet end, and the first outlet end is connected to the first air outlet 412; at least one first parallel section 421 is provided with a first noise reduction chamber 43, and the first noise reduction chamber 43 is provided on at least one of the two sides of the first parallel section 421. By configuring the first air duct 42 as two first parallel sections 421 that are arranged oppositely and a first connecting section 422 that connects the two first parallel sections 421, the occupied volume can be reduced. In addition, the first noise reduction chamber 43 can be arranged in the first air duct 42 to isolate noise, which will not be described in detail here.

[0061] In some specific embodiments, the second air duct includes two second parallel sections that are spaced apart and arranged oppositely, and a second connecting section that is located between the two second parallel sections and connects the two second parallel sections, wherein one second parallel section has a second inlet end, and the second inlet end is connected to the second air inlet; the other second parallel section has a second outlet end, and the second outlet end is connected to the second air outlet; at least one second parallel section is provided with a second noise reduction chamber, and the second noise reduction chamber is provided on at least one of the two sides of the second parallel section. By configuring the second air duct as two second parallel sections that are arranged oppositely and a second connecting section that connects the two second parallel sections, the occupied volume can be reduced. Moreover, the second noise reduction chamber can be arranged in the second air duct to isolate the noise, which will not be elaborated here.

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

[0063] Furthermore, in some specific embodiments, both parallel sections are provided with corresponding noise reduction chambers. In one of the parallel sections, with the extension direction of the parallel section as the central axis, a plurality of noise reduction chambers are provided on the left and / or 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 chambers are provided on the left and / or right side of the parallel section, which can also achieve the noise reduction effect, and will not be described in detail here.

[0064] Furthermore, in some specific embodiments, in addition to the corresponding noise reduction chambers in the parallel sections, noise reduction chambers may also be provided in the connecting sections. Similarly, noise reduction chambers may be arranged in series along the extension path of the connecting sections, which may also achieve the noise reduction effect, which will not be elaborated here.

[0065] It can be understood that in the first noise reduction component 4, the parallel section corresponds to the first parallel section 421, and the noise reduction chamber corresponds to the first noise reduction chamber 43. Therefore, in the first noise reduction component 4, there are multiple settings for the first noise reduction chamber 43 to achieve noise reduction, which will not be described in detail here. Similarly, in the second noise reduction component 5, the parallel section corresponds to the second parallel section, and the noise reduction chamber corresponds to the second noise reduction chamber. Therefore, in the second noise reduction component 5, there are multiple settings for the second noise reduction chamber to achieve noise reduction, which will not be described in detail here.

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

[0067] Specifically, with the extension direction of the parallel section as the length direction, the transverse cross-sections of the first guide groove 44 , the second guide groove 45 and the third guide groove 46 are hole-like structures that penetrate along the height direction. The air inlet direction of the air inlet is orthogonal to the air flow direction of the corresponding parallel section; the air outlet direction of the air outlet is orthogonal to the air flow direction of the corresponding parallel section; the connecting section is connected to the two oppositely arranged parallel sections, that is, the air flow from one parallel section to the other parallel section is a turning flow; it can be seen that the air flow between the air inlet and the corresponding parallel section, the air outlet and the corresponding parallel section, and the air flow in the connecting section are all the flow of the air flow in the variable diameter section in the air duct, however, the flow of the air flow in the variable diameter section may cause the air flow to generate vortexes, therefore, a first guide groove 44 is set between the air inlet and the inlet end, so that the first guide groove 44 can guide the air flow to flow smoothly from the air inlet to the inlet end; a third guide groove 46 is set in the connecting section, so that the air flow can flow smoothly in the connecting section and flow smoothly to the two parallel sections; a second guide groove 45 is set between the outlet end and the air outlet, so that the second guide groove 45 can guide the air flow to flow smoothly from the outlet end to the air outlet; such a setting can reduce the wind resistance of the air duct, thereby increasing the wind speed. Furthermore, when the wind speed increases, the cross-sectional area of ​​the air duct can be reduced, thereby reducing the volume occupied by the noise reduction component.

[0068] In addition, illustratively, the extending direction of the parallel section is the length direction. Two first guide plates arranged opposite to each other in the height direction may be arranged at the air inlet and the inlet end, and a plurality of first guide grooves 44 may be arranged on the two first guide plates; and / or, two second guide plates arranged opposite to each other in the height direction may be arranged at the air outlet and the outlet end, and a plurality of second guide grooves 45 may be arranged on the two second guide plates; and / or, a third guide plate may be arranged at the connecting section, and a plurality of third guide grooves 46 may be arranged on the third guide plate. Such an arrangement may improve the structural strength.

[0069] In addition, it should be noted that the embodiments of the present invention do not limit the specific structure of each guide groove in the noise reduction assembly. In some embodiments, the air duct is defined by panels arranged relatively in the height direction, and the guide groove can be opened on the panel. In some embodiments, each guide groove can also be opened on the housing.

[0070] Furthermore, it is worth noting that the embodiment of the present invention only limits the extension direction of the first guide groove 44, the second guide groove 45, and the third guide groove 46, but does not limit the extension length and number of the first guide groove 44, the second guide groove 45, and the third guide groove 46, which can be set according to actual needs.

[0071] In some specific embodiments, the first noise reduction component 4 is provided with a first guide groove 44 connecting the first air inlet 411 and the first inlet end; the first guide groove 44 extends from the first air inlet 411 to the first inlet end; and / or, the first noise reduction component 4 is provided with a second guide groove 45 connecting the first outlet end and the first air outlet 412; the second guide groove 45 extends from the first outlet end to the first air outlet 412; and / or, the first noise reduction component 4 is provided with a third guide groove 46 located in the first connecting section 422 and connecting the two first parallel sections 421, and the third guide groove 46 has two ends, and the two ends extend toward the two first parallel sections 421. Through the guiding effect of each guide groove, the airflow can flow more smoothly at the turning and changing diameter, thereby reducing wind resistance and increasing wind speed; further, the cross-sectional area of ​​the air duct can be reduced, thereby reducing the volume occupied by the noise reduction component, which will not be elaborated here.

[0072] In some specific embodiments, the second noise reduction component 5 is provided with a first guide groove 44 connecting the second air inlet and the second inlet end; the first guide groove 44 extends from the second air inlet to the second inlet end; and / or, the second noise reduction component 5 is provided with a second guide groove 45 connecting the second outlet end and the second air outlet; the second guide groove 45 extends from the second outlet end to the second air outlet; and / or, the second noise reduction component 5 is provided with a third guide groove 46 located in the second connecting section and connecting the two second parallel sections, the third guide groove 46 has two ends, and the two ends extend toward the two second parallel sections. Through the guiding effect of each guide groove, the airflow can flow more smoothly at the turning and changing diameter, thereby reducing wind resistance and increasing wind speed; further, the cross-sectional area of ​​the air duct can be reduced, thereby reducing the volume occupied by the noise reduction component, which will not be elaborated here.

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

[0074] Specifically, the air inlet direction of the air inlet is orthogonal to the airflow direction of the corresponding parallel segment. Therefore, by setting the first guide groove 44 to be arc-shaped, the first guide groove 44 is bent and extended from the air inlet to the inlet end of the corresponding parallel segment, so that the airflow can flow smoothly from the air inlet to the opening end of the corresponding parallel segment, and then smoothly flow to the corresponding parallel segment. In addition, the air outlet direction of the air outlet is orthogonal to the airflow direction of the corresponding parallel segment. Therefore, by setting the second guide groove 45 to be arc-shaped, the second guide groove 45 is bent and extended from the outlet end of the corresponding parallel segment to the air outlet, so that the airflow can flow smoothly from the outlet end of the corresponding parallel segment to the air outlet. In addition, the connecting section is connected to two relatively arranged parallel segments, that is, the airflow from one parallel segment to the other parallel segment is a curved flow. Therefore, the third guide groove 46 is set in a semicircular shape, so that the airflow can flow smoothly from one parallel segment to the other parallel segment. In summary, the wind resistance of the air duct can be reduced during the process of airflow from the air inlet to the air duct, thereby increasing the wind speed.

[0075] It should be noted that the first guide groove 44, the second guide groove 45, and the third guide groove 46 may also be in other shapes. For example, the first guide groove 44 and the second guide groove 45 may be in a straight bar shape, a ~ shape, etc., and the third guide groove 46 may be in a > shape, a U shape, a [ shape, a ( shape, a √ shape, etc.

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

[0077] Furthermore, in some embodiments, the air duct includes a main air duct and a noise reduction space, wherein a plurality of noise reduction chambers form the noise reduction space; the noise reduction component also includes a sound-transmitting wind-shielding structure, which is arranged along the extension direction of the air duct, and the sound-transmitting wind-shielding structure is disposed between the air duct and the noise reduction space.

[0078] Specifically, in the noise reduction component, with the extension direction of the air duct as the central axis, the left side, middle side, and right side of the air duct can be divided into main air ducts or noise reduction spaces formed in sequence. The embodiments of the present invention 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 right side of the air duct are both the main air duct; in some embodiments, the left and right sides of the air duct are both noise reduction spaces, and the middle side of the air duct is the main air duct; in some specific embodiments, the left and middle sides 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 and right sides of another parallel section of the air duct are both noise reduction spaces, and the middle side of the parallel section is the main air duct.

[0079] Among them, a plurality of sound insulation walls arranged at intervals along the extension direction of the air duct are arranged in the noise reduction space, and two adjacent sound insulation walls form a noise reduction chamber, and the noise reduction chamber is open on the side facing the main air duct. Therefore, when the air flow flows in the air duct, the air flow and noise will pass through the noise reduction chamber along the extension direction of the air duct, and the noise will undergo sound wave diffraction in the noise reduction chamber, so that the noise will gradually weaken under the action of multiple noise reduction chambers, thereby ultimately 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 less wind resistance; but when the airflow flows between the noise reduction chambers, vortices will be generated, which will greatly increase the wind resistance. Therefore, by setting a sound-permeable wind-shielding structure between the noise reduction space and the main air duct, the sound-permeable and wind-shielding effects can be achieved, that is, the noise can be reduced by entering the noise reduction chamber, and the airflow can be prevented from entering the noise reduction chamber, so that most of the airflow can be concentrated in the main air duct to avoid increasing wind resistance. In addition, the sound-permeable wind-shielding 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 chambers 43 form the first noise reduction space; the first noise reduction assembly 4 also includes a first sound-permeable windshield structure, which is arranged along the extension direction of the first air duct 42, and is disposed between the first air duct 42 and the first noise reduction space. The first sound-permeable windshield structure can achieve sound-permeable and windshield effects, that is, noise can be made to enter the first noise reduction chamber 43 to be weakened, and airflow can be prevented from entering the first noise reduction chamber 43, thereby making most of the airflow concentrated in the first main air duct to avoid increased wind 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 chambers form the second noise reduction space; the second noise reduction assembly 5 also includes a second sound-permeable windshield structure, which is arranged along the extension direction of the second air duct, and the second sound-permeable windshield structure is arranged between the second air duct and the second noise reduction space. The second sound-permeable windshield structure can achieve sound-permeable and windshield effects, that is, noise can enter the second noise reduction chamber to be weakened, and airflow can be blocked from entering the second noise reduction chamber, thereby concentrating most of the airflow in the second main air duct to avoid increased wind resistance.

[0083] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0084] The above is a description of the technical solution provided by the present invention. For those skilled in the art, according to the ideas of the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A sound insulation and noise reduction device for fan noise reduction, characterized in that: The sound insulation and noise reduction device comprises: The frame is provided with an air inlet window and an air outlet window connected to the outside; A heating component is assembled in the frame; A fan is located in the frame, and is used to drive external air flow from the air inlet window to the heat generating component, and then from the heat generating component to the air outlet window; and, a noise reduction component, the noise reduction component being assembled in the frame and disposed on a flow path of the airflow; Among them, the noise reduction component includes a shell assembled in the frame, the shell is provided with an air inlet and an air outlet, and an air duct connecting the air inlet and the air outlet and used for air flow is formed in the shell, and the noise reduction component also includes a plurality of noise reduction chambers arranged in the air duct, and the plurality of noise reduction chambers are arranged in series along the extension direction of the air duct.

2. The sound insulation and noise reduction device according to claim 1, characterized in that: The noise reduction component also includes a plurality of sound insulation walls which are arranged in the shell and spaced apart along the extension direction of the air duct, and two adjacent sound insulation walls form a noise reduction chamber.

3. The sound insulation and noise reduction device according to claim 2, characterized in that: The noise reduction assembly also includes a sound absorbing structure disposed on at least a portion of the sound insulation wall.

4. The sound insulation and noise reduction device according to claim 1, characterized in that: The air duct includes two parallel sections that are spaced apart and arranged opposite to each other, and a connecting section located between the two parallel sections and connecting the two parallel sections, wherein one of the parallel sections 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 of the parallel sections is provided with the noise reduction chamber, and the noise reduction chamber is provided on at least one of the two sides of the parallel sections.

5. The sound insulation and noise reduction device according to claim 4, characterized in that: The noise reduction component is provided with a first guide groove connecting the air inlet and the inlet end; the first guide groove extends from the air inlet to the inlet end; And / or, the noise reduction component is provided with a second guide groove connecting the outlet end and the air outlet; the second guide groove extends from the outlet end to the first air outlet; And / or, the noise reduction component is provided with a third guide groove located in the connecting section and connecting the two parallel sections, the third guide groove has two ends, and the two ends extend toward the two parallel sections.

6. The sound insulation and noise reduction device according to claim 5, characterized in that: The first guide groove is arc-shaped; and / or the second guide groove is arc-shaped; and / or the third guide groove is semicircular.

7. The sound insulation and noise reduction device according to claim 1, characterized in that: The air duct includes a main air duct and a noise reduction space, wherein a plurality of the noise reduction chambers form the noise reduction space; the noise reduction component also includes a sound-permeable wind-shielding structure, which is arranged along the extension direction of the air duct, and the sound-permeable wind-shielding structure is set between the air duct and the noise reduction space.

8. The sound insulation and noise reduction device according to claim 1, characterized in that: The noise reduction component includes a first noise reduction component; the first noise reduction component includes a first shell assembled in the frame, the first shell is provided with a first air inlet facing and connected to the air inlet window, and a first air outlet connected to the heat-generating component; a first air duct connected between the first air inlet and the first air outlet is formed in the first shell; the first noise reduction component also includes a plurality of first noise reduction chambers arranged in the first air duct, and the plurality of first noise reduction chambers are arranged in series along the extension direction of the first air duct.

9. The sound insulation and noise reduction device according to claim 8, characterized in that: The fan is arranged at the first air outlet, and the sound insulation and noise reduction device also includes a fan assembly position arranged at the first air outlet. The fan is assembled at the fan assembly position, and a buffer structure is also arranged between the fan and the fan assembly position.

10. The sound insulation and noise reduction device according to claim 1, characterized in that: The noise reduction component also includes a second noise reduction component, which includes a second shell assembled in the frame, the second shell is provided with a second air inlet connected to the heat-generating component, and a second air outlet facing the air outlet window; a second air duct is formed in the second shell between the second air inlet and the second air outlet; the second noise reduction component also includes a plurality of second noise reduction chambers located around the second air duct, and the plurality of second noise reduction chambers are arranged in series along the extension direction of the second air duct.

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