Shelter efficient silent cooling device

Abstract

The present application provides a highly efficient and silent heat dissipation device for a square cabin, which belongs to the field of ventilation and heat exchange for square cabins. The highly efficient and silent heat dissipation device for a square cabin includes a shell, a centrifugal fan, a filter assembly, a folding plate assembly, an opening and closing drive mechanism, a partition box and a centrifugal control mechanism. The centrifugal control mechanism is installed by forming an installation space on the back of the centrifugal fan through a partition box, so that the rotating shaft of the centrifugal fan directly drives the folding plate assembly to close the total air outlet through the centrifugal control mechanism and the opening and closing drive mechanism, so that the degree of opening and closing of the folding plate assembly is directly determined by the rotation speed of the centrifugal fan, thereby preventing external dust, water vapor, etc. from flowing back into the square cabin; the elastic force of the elastic structure always prompts the folding plate assembly to be closed, and in the event of damage and failure of the device, the folding plate assembly can be kept in a closed state as much as possible to prevent external pollutants from entering the interior of the square cabin; the use of the folding plate assembly can not only achieve the effect of noise reduction, but also close the total air outlet through the rotation of each folding plate, thereby simplifying the structure at the total air outlet.

Description

Technical Field

[0001] The present application belongs to the technical field of ventilation and heat exchange of square cabins, and more specifically, relates to a high-efficiency and silent heat dissipation device for square cabins. Background Art

[0002] A shelter is a device that provides an independent enclosed space, usually used as a machine room for electrical equipment such as photovoltaic boxes, energy storage boxes, high-voltage frequency converter rooms, and photovoltaic inverter rooms. Since the shelter is a closed structure, in order to remove the heat generated by internal equipment and personnel, a special heat dissipation device needs to be installed. The shelter is usually equipped with an air inlet with a filter device. The heat dissipation device extracts the hot air in the shelter, allowing the outside cold air to flow in from the air inlet, and the heat is dissipated through the circulation of internal and external air.

[0003] Today's heat dissipation devices usually consist of a fan, a filter component, a noise reduction component, and a sealing component. The fan extracts the hot air in the cabin, and then the hot air is discharged through the filter component and the noise reduction component. When the heat dissipation device is out of use, the outlet can be closed by a shutter-type sealing structure to prevent external moisture, dust, insects, etc. from entering the cabin. Usually, the fan speed and the sealing structure are independent structures, and are linked and controlled by software. This method is easily affected by software stability and delay, resulting in poor synchronization between the fan speed and the opening and closing of the sealing structure. It may cause the sealing structure to open prematurely when the fan is not turned on or the speed is low, causing external dust, water vapor, etc. to flow back into the cabin. Summary of the invention

[0004] In view of this, an embodiment of the present application provides a highly efficient and silent heat dissipation device for a cabin to solve the technical problems in the prior art that the rotation speed of the fan and the opening and closing of the closed structure are susceptible to interference and poor synchronization.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] On the one hand, a highly efficient and silent heat dissipation device for a cabin is provided, comprising:

[0007] The housing has an air duct inside, and a main air inlet communicating with the air duct is arranged at the upper end, and a main air outlet communicating with the air duct is arranged at the lower end;

[0008] A centrifugal fan is installed in the air duct, and the central air inlet is opposite to the main air inlet;

[0009] A filter assembly is arranged in the air duct and is located at the rear side of the centrifugal fan in the flow direction of the air duct;

[0010] A folding plate assembly is arranged in the air duct and is located at the rear side of the filter assembly in the flow direction of the air duct; the folding plate assembly includes two folding plate groups with opposite bending directions, and a bent noise reduction channel is formed between adjacent folding plates of each folding plate group, and each folding plate is rotatably arranged, and two adjacent folding plates are connected by a connecting rod, and the two folding plate groups can be folded toward the middle through an elastic structure, so that the adjacent folding plates are sequentially attached to close the total air outlet;

[0011] The opening and closing driving mechanism comprises two unilateral driving mechanisms for driving the two groups of folding plates respectively, each of the unilateral driving mechanisms comprises a synchronous belt, an outer guide wheel, an upper guide wheel and a driving gear; the outer guide wheel is located on the outer side of the corresponding folding plate group, the upper guide wheel is located on the upper side of the corresponding folding plate group, the driving gear is coaxially arranged with the upper guide wheel to drive the upper guide wheel, one end of the synchronous belt is wound around the upper guide wheel, and the other end is connected to the outermost folding plate after passing through the outer guide wheel;

[0012] A partition box is used to separate an installation space located at the back of the centrifugal fan in the air duct so that the rotating shaft of the centrifugal fan enters the installation space; and

[0013] The centrifugal control mechanism is arranged in the installation space, and includes a vertical rotating shaft, a hanging hammer, a rotating ring and a sliding sleeve; the upper end of the vertical rotating shaft is connected to the transmission shaft of the centrifugal fan through a bevel gear; the hanging hammer is hinged to the vertical rotating shaft and rotates with the vertical rotating shaft to rise or fall under the centrifugal action; the rotating ring is axially slidably sleeved on the vertical rotating shaft and connected to the hanging hammer to rise or fall driven by the hanging hammer, and an annular groove is provided on the outer periphery of the rotating ring; the sliding sleeve is sleeved on the vertical rotating shaft and can slide axially and rotate circumferentially relative to the vertical rotating shaft. The sliding sleeve is provided with a hook embedded in the annular groove so as to move up and down with the rotating ring. Axial racks are respectively provided on both sides of the sliding sleeve. The racks drive the driving gear through an intermediate gear. When the speed of the vertical shaft increases to cause the pendulum to rise, the two folding plate groups are pulled to open to both sides through the centrifugal control mechanism and the opening and closing driving mechanism to overcome the elastic force of the elastic structure. When the speed of the vertical shaft decreases to cause the pendulum to drop, the two folding plate groups are relaxed so that the two folding plate groups are folded toward the middle through the elastic force of the elastic structure.

[0014] In some embodiments, the folding plate assembly further comprises a double-sided unit located between the two folding plate groups; the two side surfaces of the double-sided unit are respectively in the same bending direction as the corresponding folding plate assembly, so as to form a noise reduction channel with the adjacent folding plates;

[0015] The elastic structure comprises two springs, and the two springs are respectively connected between the two side surfaces of the double-sided unit and the innermost folding plates of the two folding plate groups.

[0016] In some embodiments, the single-sided drive mechanism includes one driving gear and two sets of synchronous belts, the outer guide wheel and the upper guide wheel;

[0017] Among the two groups of the synchronous belts, the outer guide wheels and the upper guide wheels, the outer guide wheels in the two groups are installed on the side walls of the shell and are respectively opposite to the front end and the rear end of the folding plate, and the upper guide wheels in the two groups are respectively installed on the front wall and the rear wall of the shell and are respectively opposite to the front end and the rear end of the folding plate, the upper guide wheels in the two groups are synchronized by a synchronous shaft, and one of the upper guide wheels close to the centrifugal control mechanism is coaxially fixed with the driving gear, one end of the synchronous belt in the two groups is wound around the upper guide wheel of the same group, and the other end is connected to the corresponding front end or rear end of the folding plate after bypassing the outer guide wheel of the same group.

[0018] In some embodiments, an inverted V-shaped air guide plate is provided in the air duct, the air guide plate is parallel to the synchronization shaft and is located above the synchronization shaft, and the air guide plate is located below the centrifugal fan.

[0019] In some embodiments, the bent portion of the folding plate protrudes toward the middle of the shell so that the outer side of the folding plate is recessed to form an escape space, and the outer guide wheel is opposite to the escape space of the outermost folding plate of the folding plate group.

[0020] In some embodiments, a detachable maintenance door is provided on the side of the shell, and the maintenance door is opposite to the filter assembly; the filter assembly is plug-in connected to the shell, and the plug-in direction is toward the maintenance door.

[0021] In certain embodiments, the upper guide wheel, the synchronization shaft, the drive gear, and the intermediate gear are located above the filter assembly, and the synchronization belt passes around the side of the filter assembly.

[0022] In some embodiments, sealing strips are respectively provided on the upper and lower sides of the side end of the filter component, and the two sealing strips are warped away from each other; a filling sponge is also provided on the side end of the filter component, and the filling sponge is filled between the two sealing strips, and a smooth flexible film layer is provided on the outer side of the filling sponge;

[0023] The side end of the filter assembly is sealed with the passing synchronous belt through the two sealing strips and the flexible membrane layer.

[0024] In some embodiments, a plurality of rolling pins are provided on the inner side of the maintenance door, and the plurality of rolling pins have horizontal rotating shafts and are arranged side by side to form a rolling row; the rolling row is opposite to the sealing strip and the flexible film layer, and respectively abuts against both sides of the synchronous belt.

[0025] The beneficial effect of the high-efficiency silent heat dissipation device for a cabin provided by the embodiment of the present application is that: compared with the prior art, the high-efficiency silent heat dissipation device for a cabin provided by the embodiment of the present application forms an installation space on the back of the centrifugal fan through a partition box to install a centrifugal control mechanism, so that the rotating shaft of the centrifugal fan directly drives the folding plate assembly to close the total air outlet through the centrifugal control mechanism and the opening and closing drive mechanism, so that the opening and closing degree of the folding plate assembly is directly determined by the rotation speed of the centrifugal fan, thereby preventing external dust, water vapor, etc. from flowing back into the cabin;

[0026] The elastic force of the elastic structure always forces the folding plate assembly to be closed, and can ensure that the folding plate assembly is in a closed state as much as possible when the device is damaged or fails, so as to prevent external pollutants from entering the cabin and affecting the operation of the internal equipment;

[0027] The use of the folding plate assembly can not only achieve the effect of noise reduction, but also close the main air outlet by rotating each folding plate, thereby simplifying the structure at the main air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 This is a schematic diagram of the internal structure of the efficient and silent heat dissipation device for a cabin provided in an embodiment of the present application, with the folding plate in an open state;

[0030] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0031] Figure 3 for Figure 1 A schematic diagram of the structure of the efficient and silent heat dissipation device in the middle cabin with the folding plate closed;

[0032] Figure 4 for Figure 1 Schematic diagram of the internal structure of the efficient and silent heat dissipation device in the middle cabin;

[0033] Figure 5 This is a schematic diagram of the structure of the filter assembly and maintenance door in the cabin's high-efficiency silent heat dissipation device.

[0034] Among them, the reference numerals in the figure are:

[0035] 1-housing; 11-main air inlet; 12-main air outlet; 13-air guide plate; 14-maintenance door; 141-rolling needle; 2-centrifugal fan; 3-filter assembly; 31-sealing strip; 32-filling sponge; 33-flexible membrane layer; 4-folding plate group; 41-folding plate; 411-avoidance space; 42-connecting rod; 43-spring; 44-double-sided unit; 5-synchronous belt; 51-outer guide wheel; 52-upper guide wheel; 53-driving gear; 54-synchronous shaft; 6-compartment box; 7-centrifugal control mechanism; 71-vertical shaft; 72-hanging hammer; 73-swivel ring; 731-annular groove; 74-sleeve; 741-hook; 742-rack; 75-intermediate gear. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0040] Please also read Figures 1 to 5 The efficient and silent heat dissipation device for a square cabin provided by the embodiment of the present application is now described. A highly efficient and silent heat dissipation device for a square cabin comprises: a housing, a centrifugal fan, a filter assembly, a folding plate assembly, an opening and closing drive mechanism, a compartment and a centrifugal control mechanism.

[0041] An air duct is arranged inside the shell, and a main air inlet communicating with the air duct is arranged at the upper end, and a main air outlet communicating with the air duct is arranged at the lower end.

[0042] The centrifugal fan is installed in the air duct, and the central air inlet is opposite to the main air inlet.

[0043] The filter assembly is arranged in the air duct and is located at the rear side of the centrifugal fan in the flow direction of the air duct.

[0044] The folding plate assembly is arranged in the air duct and is located on the rear side of the filter assembly in the flow direction of the air duct; the folding plate assembly includes two folding plate groups with opposite bending directions, and a bent noise reduction channel is formed between adjacent folding plates of each folding plate group, and each folding plate is rotatably arranged, and two adjacent folding plates are connected by a connecting rod. The two folding plate groups can be folded toward the middle through an elastic structure, so that adjacent folding plates are sequentially fitted to close the total air outlet.

[0045] The opening and closing drive mechanism includes two unilateral drive mechanisms that respectively drive two groups of folding plates, and each unilateral drive mechanism includes a synchronous belt, an outer guide wheel, an upper guide wheel and a driving gear; the outer guide wheel is located on the outer side of the corresponding folding plate group, and the upper guide wheel is located on the upper side of the corresponding folding plate group. The driving gear is coaxially arranged with the upper guide wheel to drive the upper guide wheel. One end of the synchronous belt is wound around the upper guide wheel, and the other end is connected to the outermost folding plate after passing around the outer guide wheel.

[0046] The partition box separates an installation space located at the back of the centrifugal fan in the air duct so that the rotating shaft of the centrifugal fan enters the installation space.

[0047] The centrifugal control mechanism is arranged in the installation space, including a vertical rotating shaft, a hanging hammer, a rotating ring and a sliding sleeve; the upper end of the vertical rotating shaft is connected to the transmission shaft of the centrifugal fan through a bevel gear; the hanging hammer is hinged to the vertical rotating shaft and rotates with the vertical rotating shaft to rise or fall under the centrifugal action; the rotating ring is axially slidably sleeved on the vertical rotating shaft and connected to the hanging hammer to rise or fall under the drive of the hanging hammer, and an annular groove is arranged on the outer periphery of the rotating ring; the sliding sleeve is sleeved on the vertical rotating shaft and can slide axially and rotate circumferentially relative to the vertical rotating shaft, the sliding sleeve is provided with a hook embedded in the annular groove to move up and down with the rotating ring, and racks are respectively arranged on both sides of the sliding sleeve along the axial direction, and the rack drives the driving gear through the intermediate gear, so that when the speed of the vertical rotating shaft increases to make the hanging hammer rise, the two folding plate groups are pulled to open to both sides by the centrifugal control mechanism and the opening and closing driving mechanism to overcome the elastic force of the elastic structure, and when the speed of the vertical rotating shaft decreases to make the hanging hammer fall, the two folding plate groups are relaxed so that the two folding plate groups are closed to the middle by the elastic force of the elastic structure.

[0048] Compared with the prior art, the efficient and silent heat dissipation device for the cabin in the embodiment of the present application forms an installation space on the back of the centrifugal fan through a partition box to install a centrifugal control mechanism, so that the rotating shaft of the centrifugal fan directly drives the folding plate assembly to close the total air outlet through the centrifugal control mechanism and the opening and closing drive mechanism, so that the opening and closing degree of the folding plate assembly is directly determined by the rotation speed of the centrifugal fan, thereby preventing external dust, water vapor, etc. from flowing back into the cabin;

[0049] The use of the folding plate assembly can not only achieve the effect of noise reduction, but also close the main air outlet by rotating each folding plate, thereby simplifying the structure at the main air outlet.

[0050] In this embodiment, the shell is generally in the shape of a vertical rectangular parallelepiped, wherein the hollow interior forms an air duct from top to bottom, the front and rear of the shell are respectively a front wall and a rear wall, and the left and right are side walls. The total air inlet is arranged on the front wall at the upper end of the shell and is connected to the upper end of the air duct, and the bottom of the shell is open to form a total air outlet.

[0051] In this embodiment, the centrifugal fan can adopt the common structure mentioned above, which is composed of a motor and an impeller. The motor is installed at the center of the impeller to drive the impeller to rotate, and the center of the impeller sucks air and discharges it to the surroundings. The centrifugal fan is installed in the upper end of the shell, and the air inlet formed in the center of the impeller is opposite to the main air inlet, so that the centrifugal fan sucks the air in the cabin from the main air inlet and discharges it into the air duct of the shell. The airflow flows backward along the air duct and passes through the filter assembly and the folding plate assembly in sequence.

[0052] In this embodiment, the filter assembly is installed in the housing and is located below the centrifugal fan, so that the airflow blown out by the centrifugal fan can be filtered by the filter assembly. The filter assembly can be fixedly installed on the housing, or can be installed on the housing so as to be pluggable and replaceable.

[0053] In this embodiment, the folding plate assembly includes two groups of folding plate groups with opposite bending directions. The two folding plate groups are folded toward the middle through an elastic structure, so that the folding plate group is not subjected to external force and each folding plate swings to close the noise reduction channel. Each folding plate can be made of an aluminum alloy flat plate to reduce weight. Adjacent folding plates of the same folding plate group are spaced at a certain distance to form a noise reduction channel. After the airflow enters the noise reduction channel, it will be reflected and absorbed on the folding plate, so that the sound wave gradually attenuates, achieving the effect of vibration reduction and noise reduction. The specific principle can refer to the principle of the existing folding plate muffler. Each folding plate of the same folding plate group is installed in the shell through the upper end rotating shaft, and the adjacent two folding plates are connected by a connecting rod, so that each folding plate of the folding plate group swings synchronously. When the folding plate group swings toward the middle of the shell, the noise reduction channel between the adjacent two folding plates gradually narrows until it is closed. When the folding plate group swings toward both sides of the shell, the noise reduction channel between the adjacent two folding plates opens and gradually widens. A damping structure is provided at the rotating shaft of the folding plate to absorb the vibration of the folding plate. For example, a rubber pad may be added at the rotating shaft of the folding plate to increase the friction.

[0054] In this embodiment, the two unilateral drive mechanisms of the opening and closing drive mechanism are respectively used to control the swinging of the two folding plate groups. The two folding plate groups are symmetrically arranged, and the corresponding two unilateral drive mechanisms are also symmetrically arranged. Taking a unilateral drive mechanism as an example, the outer guide wheel and the upper guide wheel are used to guide the synchronous belt so that the synchronous belt bypasses the outer side and upper side of the folding plate group and avoids interference with other components. Specifically, there are two outer guide wheels, which are arranged up and down along the side wall of the shell so that the synchronous belt moves upward along the side wall of the shell. One end of the synchronous belt is connected to the outermost folding plate, and the other end is wound on the upper guide wheel. The synchronous belt can be wound or loosened by the upper guide wheel to drive the folding plate group to open and close.

[0055] In this embodiment, the compartment is installed on the top of the housing, and an installation space is separated behind the motor of the centrifugal fan to prevent the airflow in the air duct from affecting the centrifugal control mechanism. The motor shaft of the centrifugal fan extends backward into the installation space and drives the vertical shaft of the centrifugal control mechanism through the bevel gear.

[0056] In this embodiment, the long handle of the hanging hammer is hinged to the upper part of the vertical rotating shaft. The swivel sleeve is sleeved on the vertical rotating shaft and can slide up and down. The swivel sleeve is hinged to the long handle of the hanging hammer through a connecting rod. An annular groove is arranged on the outer periphery of the swivel sleeve. The sliding sleeve is sleeved on the vertical rotating shaft and slides along the axial direction. The hook at the top of the sliding sleeve is hooked into the annular groove of the swivel sleeve. The centrifugal control mechanism uses the vertical rotating shaft to drive the hanging hammer to rotate. When the vertical rotating shaft is driven by the transmission shaft of the centrifugal fan, the swivel and the hanging hammer rotate with the vertical rotating shaft. The hanging hammer rises under the centrifugal action and pulls the swivel upward through the connecting rod. The sliding sleeve is sleeved on the lower end of the vertical rotating shaft and does not rotate with the vertical rotating shaft. The sliding sleeve is hooked into the annular groove of the swivel through the hook at the top, so that the rotation of the swivel does not drive the sliding sleeve to rotate, but the lifting of the swivel can drive the sliding sleeve to lift. The racks on both sides of the sliding sleeve drive two unilateral driving mechanisms through the intermediate gear respectively, so that the two folding plate groups of the folding plate assembly can be folded to the middle or opened to the left and right sides.

[0057] When working, the centrifugal fan rotates. On the one hand, the airflow generated by the centrifugal fan in the air duct also pushes the folding plate assembly. On the other hand, as the vertical shaft of the centrifugal control mechanism rotates, the hanging hammer rises and then reels the synchronous belt through the upper guide wheel, so that the synchronous belt drives the folding plate assembly. The two work together to make the folding plate assembly overcome the elastic force of the elastic structure and open. When the speed of the centrifugal fan decreases, the airflow in the air duct decreases, the driving force of the airflow decreases, and the speed of the vertical shaft of the centrifugal control mechanism decreases. The hanging hammer drops, causing the upper guide wheel to loosen the synchronous belt, so that the folding plate assembly is closed under the elastic force of the elastic structure.

[0058] The elastic force of the elastic structure always urges the folding plate assembly to be closed, and can ensure that the folding plate assembly is in a closed state as much as possible when the device is damaged or fails, thereby preventing external pollutants from entering the interior of the cabin and affecting the operation of the internal equipment.

[0059] See also Figure 1 and Figure 3 As a specific embodiment of the efficient and silent heat dissipation device for the cabin provided in the present application, the folding plate assembly also includes a double-sided unit located between the two folding plate groups; the two side surfaces of the double-sided unit are respectively in the same bending direction as the corresponding folding plate assembly to form a noise reduction channel with the adjacent folding plates.

[0060] The elastic structure comprises two springs, and the two springs are respectively connected between the two side surfaces of the double-sided unit and the innermost folding plates of the two folding plate groups.

[0061] In this embodiment, a double-sided unit is added between the two folding plate groups, so that the two sides of the double-sided unit form a noise reduction channel with the corresponding folding plate assembly, so that the airflow passing between the two folding plate groups can also be subjected to noise reduction treatment. In specific implementation, the double-sided unit can be formed by bending a plate. The innermost folding plate of the folding plate group is connected to the opposite side of the double-sided unit through a spring.

[0062] See also Figure 1 , Figure 3 and Figure 4 As a specific implementation of the efficient and silent heat dissipation device for the cabin provided in the present application, the single-sided driving mechanism includes a driving gear and two sets of synchronous belts, an outer guide wheel and an upper guide wheel.

[0063] Among the two groups of synchronous belts, outer guide wheels and upper guide wheels, the outer guide wheels in the two groups are installed on the side walls of the shell and are respectively opposite to the front end and rear end of the folding plate, and the upper guide wheels in the two groups are respectively installed on the front wall and rear wall of the shell and are respectively opposite to the front end and rear end of the folding plate, the upper guide wheels in the two groups are synchronized through the synchronous shaft, and an upper guide wheel close to the centrifugal control mechanism is coaxially fixed with the driving gear, one end of the synchronous belt in the two groups is wound around the upper guide wheel of the same group, and the other end is connected to the corresponding front end or rear end of the folding plate after bypassing the outer guide wheel of the same group.

[0064] In this embodiment, similar to the orientation of the housing, the two ends of the folding plate in the direction of the rotating shaft are the front end and the rear end. Two sets of synchronous belts, outer guide wheels and upper guide wheels are used to drive the front end and the rear end of the folding plate respectively. The upper guide wheels in the two sets are synchronized by the synchronous shaft, so that the two sets can synchronously drive the front end and the rear end of the folding plate to avoid uneven force on the folding plate and poor rotation.

[0065] In a specific implementation, each set of synchronous belts, outer guide wheels and upper guide wheels includes two outer guide wheels, one upper guide wheel and a synchronous belt. The two outer guide wheels are installed at the upper and lower positions of the same side wall of the shell. After one end of the synchronous belt is connected to the lower part of the outer folding plate of the folding plate group, it is guided upward through the two outer guide wheels on the side wall of the shell, thereby extending to the top of the folding plate, and then winding on the upper guide wheel above the folding plate. One of the upper guide wheels in the two sets is fixedly installed with a driving gear, and the two upper guide wheels in the two sets are synchronized through a synchronous shaft.

[0066] See also Figures 1 to 4 As a specific implementation of the efficient and silent heat dissipation device for the cabin provided in the present application, an inverted V-shaped wind guide plate is provided in the air duct, the wind guide plate is parallel to the synchronous shaft and is located above the synchronous shaft, and the wind guide plate is located below the centrifugal fan.

[0067] In this embodiment, the air guide plate can reduce the resistance of the synchronization shaft, so that the airflow in the air duct can flow through the synchronization shaft more smoothly. In implementation, the two ends of the air guide plate are respectively fixed to the front wall and the rear wall of the shell. The air guide plate can also cover the two upper guide wheels connected to the synchronization shaft.

[0068] See also Figure 1 and Figure 3 As a specific implementation of the efficient and silent heat dissipation device for the cabin provided in the present application, the bent portion of the folding plate protrudes toward the middle of the shell so that the outer side of the folding plate is recessed to form an avoidance space, and the outer guide wheel is opposite to the avoidance space of the outermost folding plate of the folding plate group.

[0069] In this embodiment, the outer side of the folding plate is recessed to form an escape space that can escape the outer guide wheel, so that the outer guide wheel will not limit the maximum outward opening angle of the folding plate group.

[0070] In a specific implementation, the folding plate is made by bending a flat plate into a V-shape with a large angle. The folding plates of the same folding plate group have substantially the same bending angles, the bending sharp corners of the folding plates protrude toward the middle of the shell, and the inner avoidance space faces the outside. Adjacent folding plates of the same folding plate group are connected by a connecting rod, and both ends of the connecting rod are respectively hinged to the folding plates, so that each folding plate can swing synchronously.

[0071] See also Figure 1 , Figure 3 and Figure 5 As a specific embodiment of the efficient and silent heat dissipation device for the cabin provided in the present application, a detachable maintenance door is provided on the side of the shell, and the maintenance door is opposite to the filter assembly; the filter assembly is connected to the shell by plugging and unplugging, and the plugging and unplugging direction is toward the maintenance door.

[0072] In this embodiment, the filter assembly can be pulled out for replacement by opening the maintenance door. In specific implementation, a horizontal track is provided in the shell, and the track is arranged along the two sides of the shell. An opening is provided at the position corresponding to the end of the shell and the track to install the maintenance door. The maintenance door can be detachably connected by bolts or installed by other quick-release structures. The specific filter layer design of the filter assembly can be selected according to the needs of the shelter, usually mainly for filtering dust and rainwater.

[0073] See also Figure 1 and Figure 3As a specific implementation of the efficient and silent heat dissipation device for the cabin provided in the present application, the upper guide wheel, the synchronous shaft, the driving gear, and the intermediate gear are located above the filter assembly, and the synchronous belt passes around the side of the filter assembly.

[0074] In specific implementation, the synchronous belt is from the side of the filter assembly. When replacing the filter assembly, the synchronous belt on the upper guide wheel can be loosened, and then the synchronous belt is pushed to the front or rear of the shell to pull out the filter assembly. In practice, the synchronous belt is generally made of a material with a certain elasticity, which can make it more convenient to push the synchronous belt to the front or rear of the shell.

[0075] See also Figure 5 As a specific embodiment of the efficient and silent heat dissipation device for the cabin provided in the present application, sealing strips are respectively provided on the upper and lower sides of the side end of the filter component, and the two sealing strips are warped away from each other; a filling sponge is also provided on the side end of the filter component, and the filling sponge is filled between the two sealing strips, and a smooth flexible film layer is provided on the outer side of the filling sponge.

[0076] The side end of the filter assembly is sealed to the passing synchronous belt through two sealing strips and a flexible membrane layer.

[0077] When in use, the sealing strip and the flexible membrane layer at the side end of the filter assembly are squeezed and sealed with the synchronous belt passing by to prevent the airflow from bypassing the filter assembly through the gap.

[0078] In this embodiment, the two sealing strips are kept away from each other and warped, so that when the airflow above the filter assembly pushes the upper sealing strip, the upper sealing strip is sealed more tightly; when the airflow below the filter assembly pushes the lower sealing strip, the lower sealing strip is sealed more tightly. In order to make the sealing strip fit more closely with the passing synchronous belt, a material as soft as possible is used, which makes the sealing strip more easily deformed. For this reason, a filling sponge is added in this embodiment. The filling sponge can support the two sealing strips on the one hand, so that the two sealing strips keep warping away from each other, and can also fit more closely with the synchronous belt through deformation, thereby improving the sealing performance. The outer side of the filling sponge is wrapped with a smooth flexible film layer to reduce the friction with the synchronous belt. The filling sponge should also be made of a softer material to better fit with the passing synchronous belt. In the specific implementation, the flexible film layer and the sealing strip can be an integrated structure, both of which are made of soft rubber material. Grease can be applied to the flexible film layer and the sealing strip during use to reduce friction.

[0079] See also Figure 5 As a specific implementation of the efficient and silent heat dissipation device for the cabin provided in the present application, a plurality of rolling needles are provided on the inner side of the maintenance door, and the rotating shafts of the plurality of rolling needles are horizontal and arranged side by side to form a rolling row; the rolling row is opposite to the sealing strip and the flexible membrane layer, and respectively abuts against both sides of the synchronous belt.

[0080] In this embodiment, the friction between the synchronous belt and the maintenance door is reduced by rolling.

[0081] In a specific implementation, a groove is set on the inner side of the maintenance door, and the rolling needle is a thin cylinder and is installed in the groove of the maintenance door through the rotating shafts at both ends. When in use, a certain amount of grease can be applied to the groove to lubricate the rolling needle.

[0082] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The high-efficiency silent heat dissipation device of the shelter is characterized by: include: The housing has an air duct inside, and a main air inlet communicating with the air duct is arranged at the upper end, and a main air outlet communicating with the air duct is arranged at the lower end; A centrifugal fan is installed in the air duct, and the central air inlet is opposite to the main air inlet; A filter assembly is arranged in the air duct and is located at the rear side of the centrifugal fan in the flow direction of the air duct; A folding plate assembly is arranged in the air duct and is located at the rear side of the filter assembly in the flow direction of the air duct; the folding plate assembly includes two folding plate groups with opposite bending directions, and a bent noise reduction channel is formed between adjacent folding plates of each folding plate group, and each folding plate is rotatably arranged, and two adjacent folding plates are connected by a connecting rod, and the two folding plate groups can be folded toward the middle through an elastic structure, so that the adjacent folding plates are sequentially attached to close the total air outlet; The opening and closing driving mechanism comprises two unilateral driving mechanisms for driving the two groups of folding plates respectively, each of the unilateral driving mechanisms comprises a synchronous belt, an outer guide wheel, an upper guide wheel and a driving gear; the outer guide wheel is located on the outer side of the corresponding folding plate group, the upper guide wheel is located on the upper side of the corresponding folding plate group, the driving gear is coaxially arranged with the upper guide wheel to drive the upper guide wheel, one end of the synchronous belt is wound around the upper guide wheel, and the other end is connected to the outermost folding plate after passing through the outer guide wheel; A partition box is used to separate an installation space located at the back of the centrifugal fan in the air duct so that the rotating shaft of the centrifugal fan enters the installation space; and The centrifugal control mechanism is arranged in the installation space, and includes a vertical rotating shaft, a hanging hammer, a rotating ring and a sliding sleeve; the upper end of the vertical rotating shaft is connected to the transmission shaft of the centrifugal fan through a bevel gear; the hanging hammer is hinged to the vertical rotating shaft and rotates with the vertical rotating shaft to rise or fall under the centrifugal action; the rotating ring is axially slidably sleeved on the vertical rotating shaft and connected to the hanging hammer to rise or fall driven by the hanging hammer, and an annular groove is provided on the outer periphery of the rotating ring; the sliding sleeve is sleeved on the vertical rotating shaft and can slide axially and rotate circumferentially relative to the vertical rotating shaft. The sliding sleeve is provided with a hook embedded in the annular groove so as to move up and down with the rotating ring. Axial racks are respectively provided on both sides of the sliding sleeve. The racks drive the driving gear through an intermediate gear. When the speed of the vertical shaft increases to cause the pendulum to rise, the two folding plate groups are pulled to open to both sides through the centrifugal control mechanism and the opening and closing driving mechanism to overcome the elastic force of the elastic structure. When the speed of the vertical shaft decreases to cause the pendulum to drop, the two folding plate groups are relaxed so that the two folding plate groups are folded toward the middle through the elastic force of the elastic structure.

2. The high-efficiency silent heat dissipation device for a shelter as claimed in claim 1, characterized in that: The folding plate assembly further comprises a double-sided unit located between the two folding plate groups; the two side surfaces of the double-sided unit are respectively in the same bending direction as the corresponding folding plate assembly, so as to form a noise reduction channel with the adjacent folding plates; The elastic structure comprises two springs, and the two springs are respectively connected between the two side surfaces of the double-sided unit and the innermost folding plates of the two folding plate groups.

3. The high-efficiency silent heat dissipation device for a shelter as claimed in claim 2, characterized in that: The single-side driving mechanism includes one driving gear and two sets of synchronous belts, the outer guide wheel and the upper guide wheel; Among the two groups of the synchronous belts, the outer guide wheels and the upper guide wheels, the outer guide wheels in the two groups are installed on the side walls of the shell and are respectively opposite to the front end and the rear end of the folding plate, and the upper guide wheels in the two groups are respectively installed on the front wall and the rear wall of the shell and are respectively opposite to the front end and the rear end of the folding plate, the upper guide wheels in the two groups are synchronized by a synchronous shaft, and one of the upper guide wheels close to the centrifugal control mechanism is coaxially fixed with the driving gear, one end of the synchronous belt in the two groups is wound around the upper guide wheel of the same group, and the other end is connected to the corresponding front end or rear end of the folding plate after bypassing the outer guide wheel of the same group.

4. The high-efficiency silent heat dissipation device for a shelter as claimed in claim 3, characterized in that: An inverted V-shaped air guide plate is arranged in the air duct, the air guide plate is parallel to the synchronization shaft and is located above the synchronization shaft, and the air guide plate is located below the centrifugal fan.

5. The high-efficiency silent heat dissipation device for a shelter as claimed in claim 1, characterized in that: The bent portion of the folding plate protrudes toward the middle of the shell, so that the outer side of the folding plate is recessed to form an escape space, and the outer guide wheel is opposite to the escape space of the outermost folding plate of the folding plate group.

6. The high-efficiency silent heat dissipation device for a shelter as claimed in claim 3, characterized in that: A detachable maintenance door is provided on the side of the shell, and the maintenance door is opposite to the filter assembly; the filter assembly is plug-in connected to the shell, and the plug-in direction is toward the maintenance door.

7. The efficient and silent heat dissipation device for a shelter as claimed in claim 6, characterized in that: The upper guide wheel, the synchronous shaft, the driving gear, and the intermediate gear are located above the filter assembly, and the synchronous belt passes around the side of the filter assembly.

8. The efficient and silent heat dissipation device for a cabin as claimed in claim 7, characterized in that: The upper and lower sides of the side end of the filter assembly are respectively provided with sealing strips, and the two sealing strips are warped away from each other; the side end of the filter assembly is also provided with a filling sponge, the filling sponge is filled between the two sealing strips, and the outer side of the filling sponge is provided with a smooth flexible film layer; The side end of the filter assembly is sealed with the passing synchronous belt through the two sealing strips and the flexible membrane layer.

9. The high-efficiency silent heat dissipation device for a shelter as claimed in claim 8, characterized in that: A plurality of rolling pins are arranged on the inner side of the maintenance door, and the rotating shafts of the plurality of rolling pins are horizontal and arranged side by side to form a rolling row; the rolling row is opposite to the sealing strip and the flexible film layer, and respectively abuts against both sides of the synchronous belt.

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