A full heat exchange fresh air fan capable of being installed in a mirror-like manner

Abstract

The present invention relates to a full heat exchange fresh air fan that can be installed in a positive and negative mirror image, and relates to the technical field of fresh air fans, which includes a shell, one end of the shell is provided with a fresh air inlet and a return air outlet, and the other end is provided with a fresh air outlet and a return air inlet, the fresh air outlet and the return air outlet are arranged opposite to each other, a fresh air fan and a return air fan are arranged in the shell, a full heat exchanger is arranged at the center of the shell, a plurality of partitions are arranged in the shell to divide the internal space of the shell into two spaces, the two sides of the partition form a first partition space and a second partition space respectively, the fresh air outlet, the first partition space and the fresh air inlet form a fresh air duct, the return air outlet, the second partition space and the return air inlet form a return air duct, an air filter is arranged in the first partition space in the shell, the air filter is arranged close to the fresh air inlet, and the air filter is adjacent to the full heat exchanger. The present invention realizes positive and negative mirror image installation through structural design, which is conducive to reducing production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air fans, and in particular to a full heat exchange fresh air fan capable of being installed in a forward and reverse mirroring manner. Background Art

[0002] The fresh air fan is an effective ventilation, air purification and energy recovery equipment that can circulate indoor and outdoor air. On the one hand, it discharges the polluted air indoors to the outside, and on the other hand, it inputs the fresh air outdoors into the room after sterilization, disinfection, filtration and other measures, so that the room is filled with fresh and clean air at all times.

[0003] For related technologies, please refer to the patent application with announcement number CN219243729U, which discloses an easy-to-install ceiling fresh air fan, including a fan, an outdoor ventilation duct is arranged on one side of the fan, an outdoor exhaust duct is arranged on the same side of the fan as the outdoor ventilation duct, an indoor air inlet is arranged on the side of the fan away from the outdoor ventilation duct, and an indoor air outlet is arranged on the side of the fan adjacent to the outdoor exhaust duct. This application does not require re-drilling holes to fix the four corners with hanging rods. It only needs to clamp the keel frames on both sides through the telescopic rods of the electric telescopic device, and provide support for the fan and the bellows through the keel frame. The whole process is simple to operate and very convenient to install. The ceiling fresh air fan can be easily lifted to the installation position without occupying much installation and operation space, and it is easier to install and fix the ceiling fresh air fan, and later replacement and maintenance are convenient and safe.

[0004] With respect to the above-mentioned related technologies, the fresh air fan needs to be installed reasonably according to the orientation of the house during installation. Usually, houses with different orientations require fresh air fans of different specifications. Especially when installing fresh air fans in opposite houses, due to the orientation of the filtration system, fresh air and exhaust systems, two mirror-image specifications of fresh air fans are required. Therefore, two models of fresh air fans need to be produced during the production process of the fresh air fans, which increases the cost. Therefore, a full-heat exchange fresh air fan that can be installed in a mirror-image manner is urgently needed to solve the above problems. Summary of the invention

[0005] In order to reduce costs, the present invention provides a full heat exchange fresh air fan that can be installed in a forward and reverse mirror image.

[0006] The present invention provides a full heat exchange fresh air fan that can be installed in a positive and negative mirror image, and adopts the following technical solution:

[0007] A total heat exchange fresh air fan that can be installed in a positive and negative mirroring manner comprises a shell, one end of the shell is provided with a fresh air inlet and a return air outlet, and the other end is provided with a fresh air outlet and a return air inlet, the fresh air inlet and the return air inlet are arranged opposite to each other, the fresh air outlet and the return air outlet are arranged opposite to each other, a fresh air fan and a return air fan are arranged in the shell, the fresh air fan is arranged at the fresh air outlet of the shell, and the return air fan is arranged at the return air outlet of the shell, a total heat exchanger is arranged at the center of the shell, a plurality of partitions for dividing the internal space of the shell into two interval spaces are arranged in the shell, the two sides of the partition respectively form a first interval space and a second interval space, the fresh air outlet, the first interval space and the fresh air inlet form a fresh air duct, the return air outlet, the second interval space and the return air inlet form a return air duct, the air flows in the fresh air duct and the return air duct are both subjected to heat and humidity exchange processing by the total heat exchanger, an air filter is arranged in the first interval space in the shell, the air filter is arranged close to the fresh air inlet, and the air filter is connected to the total heat exchanger.

[0008] By adopting the above technical scheme, when it is necessary to install an indoor fresh air fan, the staff will connect each pipeline to the fresh air fan casing respectively, and the outdoor fresh air enters the fresh air duct, and under the action of the fresh air fan, it first enters the air filter from the fresh air inlet for filtration, and then passes through the total heat exchanger to achieve heat and humidity exchange processing, and then enters the room from the fresh air outlet to keep the indoor air fresh; the indoor air enters the return air duct, and under the action of the return air fan, it first enters from the return air inlet and also passes through the total heat exchanger to achieve heat and humidity exchange processing, and then is discharged to the outdoors through the return air outlet; at this time, when a new air fan for the opposite house needs to be installed, there is no need to produce a new specification of new air fans, only the current specification of the new air fan needs to be mirrored and installed, which does not affect the normal operation of the filtration system and the process of fresh air and return air, greatly saves production costs, and improves the adaptability of the fresh air fan.

[0009] Optionally, the upper end surface and the lower end surface of the shell are both provided with inspection openings, and the inspection openings are both bolted with inspection covers.

[0010] By adopting the above technical solution, when the full heat exchanger and filter in the fresh air fan need to be inspected and replaced, the staff can simply remove the inspection cover to carry out the operation, and by setting up two inspection ports, the mirror-mountable structure of the fresh air fan is further adapted.

[0011] Optionally, an electrical box is provided at one end of the shell, and the electrical box is arranged between the fresh air outlet and the return air inlet.

[0012] By adopting the above technical solution, the electrical box is set on the outside, which can avoid physical obstruction to the main air flow path (such as the fresh air inlet duct and the return air duct), ensure smooth airflow and reduce unnecessary pressure loss.

[0013] Optionally, two hanging boxes are fixedly connected to both sides of the shell, the two hanging boxes are arranged opposite to each other, and an L-shaped hook body is bolted to each hanging box, and a hook groove is formed on the L-shaped hook body.

[0014] By adopting the above technical solution, when the fresh air fan needs to be installed, the staff will hoist the fresh air fan through the hook groove on the L-shaped hook body, which is easy to operate and helps to improve work efficiency.

[0015] Optionally, a first stopper is extended downward from the outer end of the L-shaped hook, and a second stopper is extended upward from the outer end of the L-shaped hook.

[0016] By adopting the above technical solution, the first stopper and the second stopper are provided to prevent the fixing parts from detaching during the lifting process. Similarly, the first stopper and the second stopper are provided respectively at the upper and lower parts, which adapts to the mirror-mountable structure of the fresh air fan and further improves the adaptability of the equipment.

[0017] Optionally, the top and bottom ends of the hanging box are provided with through holes, and the two through holes are arranged opposite to each other. A protruding plate is provided in the hanging box, and the two ends of the protruding plate are respectively opposite to the two through holes and have the same shape and size. A gravity plate is provided on the side of the protruding plate away from the outer shell, and a gear is provided between the gravity plate and the protruding plate. Both the gravity plate and the protruding plate are engaged with the gear. The weight of the gravity plate is greater than the weight of the protruding plate. When one end of the gravity plate is close to one end of the hanging box, the protruding plate is passed through the through hole at the other end of the hanging box.

[0018] By adopting the above technical solution, when installing the fresh air fan, it is necessary to pay attention to maintaining a certain distance from the indoor ceiling. When the fresh air fan is installed horizontally, the gravity plate in the hanging box will move downward because its own weight is greater than the weight of the extension plate, and finally stick to one end of the hanging box. In this process, due to the connection between the gear, the gravity plate and the extension plate, the extension plate will move up synchronously and finally extend out of the through hole. The staff can judge the spacing of the ceiling according to the extension length of the extension plate, which is conducive to improving the accuracy of the installation process; when installing in a mirror image, the reverse movement process of the gravity plate and the extension plate can also be used to make a judgment, which further improves the adaptability of the equipment.

[0019] Optionally, bolt grooves are provided on one side of the gravity plate away from the shell, and the bolt grooves are arranged at the top and bottom ends of the gravity plate, and the gravity plate and the L-shaped hook are detachably connected by bolts.

[0020] By adopting the above technical solution, when the direction of the fresh air fan is determined, the staff can fix the L-shaped hook to the gravity plate and the lifting box by bolts, which is conducive to further improving the stability of the device.

[0021] In summary, the present invention includes at least one of the following beneficial technical effects:

[0022] 1. By setting a shell, a fresh air inlet, a return air outlet, a fresh air outlet, a return air inlet, a fresh air fan, a return air fan, a total heat exchanger, a partition, a first partition space, a second partition space and an air filter, when it is necessary to install an indoor fresh air fan, the staff will connect each pipeline to the fresh air fan shell respectively, and the outdoor fresh air enters the fresh air duct. Under the action of the fresh air fan, it first enters the air filter from the fresh air inlet for filtration, and then realizes the exchange of heat and humidity through the total heat exchanger, and then enters the room from the fresh air outlet to keep the indoor air fresh; the indoor air enters the return air duct, and under the action of the return air fan, it first enters from the return air inlet and also realizes the exchange of heat and humidity through the total heat exchanger, and then is discharged to the outdoors through the return air outlet; at this time, when it is necessary to install a new air fan for the opposite house, there is no need to produce a new specification of the new air fan, and the new air fan of the current specification only needs to be mirrored and flipped once for installation, which does not affect the normal operation of the filtration system and the process of fresh air and return air, greatly saves production costs, and improves the adaptability of the fresh air fan;

[0023] 2. By setting the first stopper and the second stopper, the fixing parts can be prevented from being separated during the hoisting process. Similarly, the first stopper and the second stopper are respectively provided at the top and the bottom, which adapts to the mirror-mounted structure of the fresh air fan and further improves the adaptability of the equipment;

[0024] 3. By setting through holes, extension plates, gravity plates and gears, when installing the fresh air fan, it is necessary to keep a certain distance from the indoor ceiling. When the fresh air fan is installed horizontally, the gravity plate in the hoisting box will move downward because its own weight is greater than the weight of the extension plate, and finally stick to one end of the hoisting box. In this process, due to the connection between the gears, the gravity plate and the extension plate, the extension plate will move up synchronously and finally extend out of the through hole. The staff can judge the spacing of the ceiling according to the length of the extension plate, which is conducive to improving the accuracy of the installation process; when installing in a mirror image, the reverse movement process of the gravity plate and the extension plate can also be used for judgment, which further improves the adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a full heat exchange fresh air fan that can be installed in a forward and reverse mirroring manner.

[0026] Figure 2 The cross-sectional structure diagram of a full heat exchange fresh air fan that can be installed in both positive and negative mirror images.

[0027] Figure 3 It is a schematic diagram of the overall structure of the lifting parts.

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the lifting parts.

[0029] Explanation of the accompanying drawings: 1. Fresh air fan body; 11. Casing; 111. Partition; 112. First partition space; 113. Second partition space; 114. Fresh air duct; 115. Return air duct; 116. Inspection port; 117. Inspection cover; 118. Electrical box; 12. Fresh air fan; 13. Return air fan; 14. Air filter; 15. Total heat exchanger; 16. Fresh air inlet; 17. Return air outlet; 18. Fresh air outlet; 19. Return air inlet; 2. Lifting piece; 21. Lifting box; 211. Through hole; 212. Extension plate; 213. Gravity plate; 214. Gear; 22. L-shaped hook; 23. Hook groove; 24. First stopper; 25. Second stopper. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with all the accompanying drawings.

[0031] The embodiment of the present invention discloses a full heat exchange fresh air fan which can be installed in the form of a positive and negative mirror image.

[0032] Reference Figure 1 A full heat exchange fresh air fan that can be installed in a mirror image, including a fresh air fan body 1 and a hanging component 2, the hanging component 2 is arranged on both sides of the fresh air fan body 1. A mirror image installation structure is arranged inside the fresh air fan body 1 to meet the requirements of mirror image installation, and the hanging component 2 hangs the fresh air fan body 1.

[0033] Reference Figure 1 and Figure 2 The fresh air fan body 1 includes a shell 11, a fresh air fan 12, a return air fan 13, an air filter 14 and a total heat exchanger 15. A fresh air inlet 16 and a return air outlet 17 are provided at one end of the shell 11, and a fresh air outlet 18 and a return air inlet 19 are provided at the other end. The fresh air inlet 16 is arranged opposite to the return air inlet 19, and the fresh air outlet 18 is arranged opposite to the return air outlet 17. The fresh air fan 12 is arranged at the fresh air outlet 18 of the shell 11, and the return air fan 13 is arranged at the return air outlet 17 of the shell 11. The total heat exchanger 15 is arranged at the center of the shell 11. The shell 11 is provided with a plurality of components for dividing the internal space of the shell 11 into two A partition 111 is formed to form a partition space, and a first partition space 112 and a second partition space 113 are formed on both sides of the partition 111 respectively. The fresh air outlet 18, the first partition space 112 and the fresh air inlet 16 form a fresh air duct 114, and the return air outlet 17, the second partition space 113 and the return air inlet 19 form a return air duct 115. The air flows in the fresh air duct 114 and the return air duct 115 are both subjected to heat and humidity exchange processing through the total heat exchanger 15. An air filter 14 is provided in the first partition space 112 in the outer shell 11. The air filter 14 is arranged close to the fresh air inlet 16, and the air filter 14 is connected to the total heat exchanger 15.

[0034] Reference Figure 1 and Figure 2 When it is necessary to install an indoor fresh air fan, the staff will connect each pipeline to the fresh air fan casing 11 respectively, and the outdoor fresh air enters the fresh air duct 114, and under the action of the fresh air fan 12, first enters the air filter 14 from the fresh air inlet 16 for filtration, and then passes through the total heat exchanger 15 to achieve heat and humidity exchange processing, and then enters the room from the fresh air outlet 18 to keep the indoor air fresh; the indoor air enters the return air duct 115, and under the action of the return air fan 13, first enters from the return air inlet 19 and also passes through the total heat exchanger 15 to achieve heat and humidity exchange processing, and then is discharged to the outdoors through the return air outlet 17; at this time, when a new air fan for the opposite house needs to be installed, there is no need to produce a new specification of new air fans, and the current specification of the new air fan only needs to be mirrored and flipped once for installation, which will not affect the normal operation of the filtration system and the process of fresh air and return air, greatly saving production costs and improving the adaptability of the fresh air fan.

[0035] Reference Figure 1 and Figure 2 The upper and lower end surfaces of the housing 11 are provided with inspection openings 116, and inspection covers 117 are bolted to the inspection openings 116. When the total heat exchanger 15 and the filter in the fresh air fan need to be inspected and replaced, the staff can remove the inspection cover 117 to perform the operation, and by providing two inspection openings 116, the mirror-mountable structure of the fresh air fan is further adapted.

[0036] Reference Figure 1 and Figure 2 An electrical box 118 is provided at one end of the housing 11, and the electrical box 118 is disposed between the fresh air outlet 18 and the return air inlet 19. The electrical box 118 is disposed outside to avoid physical obstruction to the main airflow path (such as the fresh air inlet duct and the return air duct 115), thereby ensuring smooth passage of airflow and reducing unnecessary pressure loss.

[0037] Reference Figure 1 , Figure 3 and Figure 4The hoisting part 2 includes four hoisting boxes 21 and four L-shaped hooks 22. The four hoisting boxes 21 are evenly arranged on both sides of the outer shell 11. The two hoisting boxes 21 on one side of the outer shell 11 are arranged opposite to each other. The L-shaped hooks 22 are bolted to the hoisting boxes 21 respectively. The L-shaped hooks 22 are provided with hook grooves 23. The outer ends of the L-shaped hooks 22 have a first stopper 24 extending downward and a second stopper 25 extending upward. When the fresh air fan needs to be installed, the staff hoists the fresh air fan through the hook groove 23 on the L-shaped hook 22, which is convenient for operation and conducive to improving work efficiency. By setting the first stopper 24 and the second stopper 25, the fixing parts can be prevented from being detached during the hoisting process. Similarly, the first stopper 24 and the second stopper 25 are respectively provided at the upper and lower parts to adapt to the mirror-mountable structure of the fresh air fan, further improving the adaptability of the equipment.

[0038] Reference Figure 3 and Figure 4 A through hole 211 is provided at the top and bottom of the hanging box 21, and the two through holes 211 are arranged opposite to each other. A protruding plate 212 is provided in the hanging box 21, and the two ends of the protruding plate 212 are respectively opposite to the two through holes 211 and have the same shape and size. A gravity plate 213 is provided on the side of the protruding plate 212 away from the outer shell 11, and a gear 214 is provided between the gravity plate 213 and the protruding plate 212. The gravity plate 213 and the protruding plate 212 are both engaged with the gear 214. The weight of the gravity plate 213 is greater than the weight of the protruding plate 212. When one end of the gravity plate 213 is close to one end of the hanging box 21, the protruding plate 212 is passed through the through hole 211 at the other end of the hanging box 21.

[0039] Reference Figure 3 and Figure 4 When installing the fresh air fan, it is necessary to keep a certain distance from the indoor ceiling. When the fresh air fan is installed horizontally, the gravity plate 213 in the hanging box 21 will move downward because its own weight is greater than the weight of the extension plate 212, and finally stick to one end of the hanging box 21. In this process, due to the connection between the gear 214 and the gravity plate 213 and the extension plate 212, the extension plate 212 will move up synchronously and finally extend out of the through hole 211. The staff can judge the distance between the ceiling plates according to the extension length of the extension plate 212, which is conducive to improving the accuracy of the installation process; when installing in a mirror image, the reverse movement process of the gravity plate 213 and the extension plate 212 can also be used for judgment, which further improves the adaptability of the equipment.

[0040] Reference Figure 3 and Figure 4The side of the gravity plate 213 away from the housing 11 is provided with bolt slots, which are arranged at the top and bottom of the gravity plate 213. The gravity plate 213 and the L-shaped hook 22 are detachably connected by bolts. When the orientation of the fresh air fan is determined, the staff can fix the L-shaped hook 22 with the gravity plate 213 and the hanging box 21 by bolts, which is conducive to further improving the stability of the device.

[0041] The implementation principle of a full heat exchange fresh air fan that can be installed in a positive and negative mirror image in an embodiment of the present invention is as follows: when the indoor fresh air fan needs to be installed, the staff connects each pipeline to the fresh air fan housing 11 respectively, and the outdoor fresh air enters the fresh air duct 114. Under the action of the fresh air fan 12, it first enters the air filter 14 from the fresh air inlet 16 for filtration, and then passes through the full heat exchanger 15 to achieve heat and humidity exchange processing, and then enters the room from the fresh air outlet 18 to keep the indoor air fresh; the indoor air enters the return air duct 115, and under the action of the return air fan 13 Function: firstly, it enters from the return air inlet 19 and also passes through the total heat exchanger 15 to realize the exchange of heat and humidity, and then is discharged to the outside through the return air outlet 17; when a new air fan for the house on the opposite side needs to be installed at this time, there is no need to produce a new specification of new air fan, and it is only necessary to mirror-flip the new air fan of the existing specification to install it, which will not affect the normal operation of the filtration system and the process of fresh air and return air, greatly saves production costs, improves the adaptability of the new air fan, and the matching hanging parts 2 also meet the needs of mirror installation, further improving the adaptability of the equipment.

[0042] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A full heat exchange fresh air fan capable of being installed in a mirror-like manner, comprising a housing (11), characterized in that: A fresh air inlet (16) and a return air outlet (17) are provided at one end of the housing (11), and a fresh air outlet (18) and a return air inlet (19) are provided at the other end. The fresh air inlet (16) and the return air inlet (19) are arranged opposite to each other, and the fresh air outlet (18) and the return air outlet (17) are arranged opposite to each other. A fresh air fan (12) and a return air fan (13) are provided in the housing (11). The fresh air fan (12) is arranged at the fresh air outlet (18) of the housing (11), and the return air fan (13) is arranged at the return air outlet (17) of the housing (11). A total heat exchanger (15) is provided at the center of the housing (11). A plurality of partitions (111) are provided for dividing the internal space of the housing (11) into two partition spaces. The two sides of the partition (111) respectively form a first partition space (112) and a second partition space (113). The fresh air outlet (18), the first partition space (112) and the fresh air inlet (16) form a fresh air duct (114). The return air outlet (17), the second partition space (113) and the return air inlet (19) form a return air duct (115). The airflows in the fresh air duct (114) and the return air duct (115) are both subjected to heat and humidity exchange processing by the total heat exchanger (15). The first partition space (112) in the housing (11) An air filter (14) is provided inside the housing (12), the air filter (14) is arranged near the fresh air inlet (16), the air filter (14) is connected to the total heat exchanger (15), two hanging boxes (21) are fixedly connected to both sides of the housing (11), the two hanging boxes (21) are arranged opposite to each other, an L-shaped hook body (22) is bolted to the hanging box (21), the L-shaped hook body (22) is provided with a hook groove (23), a first stopper (24) extends downward from the outer end of the hook body, and a second stopper (25) extends upward, a through hole (211) is provided at the top and bottom ends of the hanging box (21), the two through holes (211) are arranged opposite to each other, and the hanging box ( A protruding plate (212) is provided inside the housing (21), and two ends of the protruding plate (212) are respectively opposite to the two through holes (211) and have the same shape and size. A gravity plate (213) is provided on the side of the protruding plate (212) away from the housing (11), and a gear (214) is provided between the gravity plate (213) and the protruding plate (212). Both the gravity plate (213) and the protruding plate (212) are meshed with the gear (214), and the weight of the gravity plate (213) is greater than the weight of the protruding plate (212). When one end of the gravity plate (213) is in close contact with one end of the hanging box (21), the protruding plate (212) is inserted into the through hole (211) at the other end of the hanging box (21).

2. According to claim 1, a full heat exchange fresh air fan capable of being installed in a mirror-like manner, characterized in that: The upper end surface and the lower end surface of the housing (11) are both provided with inspection openings (116), and the inspection openings (116) are both bolted with inspection covers (117).

3. According to claim 1, a full heat exchange fresh air fan capable of being installed in a mirror image on both sides, characterized in that: An electrical box (118) is provided at one end of the housing (11), and the electrical box (118) is arranged between the fresh air outlet (18) and the return air inlet (19).

4. According to claim 1, a full heat exchange fresh air fan capable of being installed in a mirror image on both sides, characterized in that: The gravity plate (213) is provided with bolt slots on one side away from the housing (11), and the bolt slots are arranged at the top and bottom ends of the gravity plate (213). The gravity plate (213) and the L-shaped hook body (22) are detachably connected via bolts.

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