A new fan ventilation layout structure and a two-way flow fan

Abstract

The present invention discloses a fresh air fan ventilation layout structure and a two-way flow fan, comprising: a box body with a quadrilateral frame, the two sides of the frame are respectively closed by a first cover plate and a second cover plate, the interior of the box body is divided into an air supply duct and an exhaust duct, the interior of the air supply duct is arranged from left to right in sequence: a fresh air filter, an electric heater, an evaporator, a drainage pump, and a fan assembly; the interior of the exhaust duct is arranged from left to right in sequence: a fan assembly and an exhaust filter; the present invention optimizes the fixing method of the middle partition and the evaporator, reasonably arranges the supply air duct and the exhaust duct, separates the supply air duct and the exhaust duct, and at the same time makes the evaporator have a longer length under a certain width of the unit, ensures that the area of ​​the evaporator is larger, and realizes maximum space utilization; the fresh air fan of the present invention has both supply and exhaust air and heat load processing functions, the evaporator of the present invention is connected to the multi-connected outdoor unit and can be connected in parallel with other indoor units, so as to comprehensively control the entire air-conditioning system.

Description

Technical Field

[0001] The invention discloses a ventilation layout structure of a fresh air fan and a bidirectional flow fan, and relates to the field of fresh air fans. Background Art

[0002] The fresh air system is an independent air treatment system consisting of an air supply system and an exhaust system. It is divided into two types: ducted fresh air system and ductless fresh air system. The ducted fresh air system consists of a fresh air fan and duct accessories. The fresh air fan purifies the outdoor air and introduces it into the room, and then discharges the indoor air through the duct. The ductless fresh air system consists of a fresh air fan, which also purifies the outdoor air and introduces it into the room.

[0003] At present, the fresh air fans on the market are generally heat recovery two-way flow or one-way flow, and have limited fresh air processing capacity. The air delivered to the room in weather such as the "return of the south wind" is prone to condensation, which adds unnecessary load to the indoor air conditioner or dehumidifier. In addition, it cannot be linked with the air conditioning equipment and cannot meet the temperature and humidity requirements for introducing fresh air. Summary of the Invention

[0004] In response to the defects in the above-mentioned background technology, the present invention provides a fresh air fan ventilation layout structure and a two-way flow fan to optimize the air duct layout and improve the purification effect.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a fresh air fan ventilation layout structure, comprising: a box body with a quadrilateral frame, the two sides of the frame are respectively closed by a first cover plate and a second cover plate, and the interior of the box body is divided into an air supply duct and an exhaust duct.

[0006] The air supply duct and the air exhaust duct are separated by a first partition plate and a second partition plate.

[0007] The first partition and the second partition adopt a folding plate design, and the ends of the first partition and the second partition are horizontally connected to the left and right sides of the box respectively. The sides of the first partition and the second partition are connected to the first cover plate. The height of the first partition is higher than the second partition, and the first partition and the second partition are bent downward at the connection. The connection between the first partition and the second partition is used to connect the evaporator.

[0008] A two-way flow fresh air fan, wherein the air supply duct is provided with the following components from left to right: a fresh air filter, an electric heater, an evaporator, a drain pump, and a fan assembly; and the exhaust duct is provided with the following components from left to right: a fan assembly and an exhaust filter;

[0009] The fan components of the air supply duct and the air exhaust duct are respectively arranged on the oblique corners of the box body, and the wind directions inside the air supply duct and the air exhaust duct are opposite.

[0010] Furthermore, the fan assembly includes: a motor; a motor drives the wind wheel, the motor is installed on a motor fixing bracket, the volute is fixed on a volute fixing plate, the motor fixing bracket is connected to the volute fixing plate, the left and right sides of the volute fixing plate are connected to the fan fixing bracket, and a compression bolt is provided on the box body, which is fixed to the compression bolt through the through holes on the fan fixing brackets on both sides.

[0011] Furthermore, the area above the fan assembly of the air supply duct is separated into an electric control room, in which an electric control module is installed.

[0012] Furthermore, a water receiving tray is provided on the side of the drainage pump, and the water receiving tray is U-shaped. Both sides of the water receiving tray are respectively connected to the clearance grooves on the first partition and the second partition, and the clearance groove is opened near the second cover plate.

[0013] Furthermore, the second cover plate adopts a three-section design, including: a filter cover plate, a water tray cover plate and a fan cover plate, and the filter cover plate and the fan cover plate are respectively arranged on both sides of the water tray cover plate.

[0014] Furthermore, a first mounting rail is provided at the upper left corner of the first cover plate, and the fresh air filter is connected to the inner side of the first cover plate through the first mounting rail.

[0015] Furthermore, a first inspection port is opened on the upper side of the fresh air filter, and the first inspection port is closed by a first inspection cover.

[0016] Furthermore, a second mounting rail is provided at the lower portion of the second partition, and the exhaust filter is connected to the lower side of the second partition via the second mounting rail.

[0017] Furthermore, a second inspection port is provided on the fan cover plate, the second inspection port is located on the side of the exhaust filter, and the second inspection port is closed by a second inspection cover.

[0018] Beneficial effects: 1. The present invention optimizes the fixing method of the middle partition and the evaporator, reasonably arranges the supply air duct and the exhaust air duct, separates the supply air duct and the exhaust air duct, and at the same time makes the evaporator have a longer length when the width of the unit is constant, ensures that the evaporator area is larger, improves the purification effect, and maximizes space utilization.

[0019] 2. The fresh air fan of the present invention has both air supply and exhaust and heat load processing functions. The evaporator of the present invention can be connected to a multi-split outdoor unit or in parallel with other indoor units without the need for additional outdoor units, thereby comprehensively controlling the entire air-conditioning system.

[0020] 3. The fan assembly of the present invention integrates the motor, impeller and volute as a whole with a modular design, and is connected to the first cover plate through a bracket. After-sales maintenance can be conveniently performed on the entire assembly or the volute can be conveniently removed to maintain other components therein.

[0021] 4. The electric control box module of the present invention is fixed in the electric control room on the chassis assembly and placed inside the unit, thereby maintaining the overall appearance of the unit and increasing the after-sales maintenance space.

[0022] 5. The bottom of the new air fan of the present invention has a three-section structure, and the fans can be maintained separately without affecting each other. At the same time, the bottom can be completely removed during engineering maintenance, which is convenient for internal maintenance of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the ventilation layout structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the fan of the present invention;

[0025] Figure 3 Schematic diagram of the partition structure of the present invention;

[0026] Figure 4 This is a schematic structural diagram of a fan assembly according to the present invention;

[0027] Figure 5 This is a schematic diagram of the installation of the water tray cover of the present invention;

[0028] Figure 6 This is a schematic diagram of the installation of the second cover plate structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the fan cover structure of the present invention. Implementation Method

[0030] The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are not intended to limit the scope of protection of the present invention.

[0031] like Figure 1 As shown, a fresh air fan ventilation layout structure includes: a box body with a quadrilateral frame, the two sides of the frame are respectively closed by a first cover plate 20 and a second cover plate, and the interior of the box body is divided into: an air supply duct 1 and an exhaust duct 2.

[0032] The air supply duct 1 and the air exhaust duct 2 are separated by a first partition plate 9 and a second partition plate 10.

[0033] The first partition 9 and the second partition 10 adopt a folding plate design, and the ends of the first partition 9 and the second partition 10 are horizontally connected to the left and right sides of the box respectively, and the sides of the first partition 9 and the second partition 10 are connected to the first cover plate 20. The height of the first partition 9 is higher than the second partition 10, and the first partition 9 and the second partition 10 are bent downward at the connection. The connection between the first partition 9 and the second partition 10 is used to connect the evaporator 5. The evaporator 5 is connected to the first partition 9 and the second partition 10 through the side plate with screws. At the same time, the first partition 9 and the second partition 10 are provided with through holes connected to the first cover plate 20 with crimping nuts. This pre-assembled part can be placed on the first cover plate 20, and then fixed to the first cover plate 20 with nuts; at the same time, screw holes are provided on the folded edges on the other side of the first partition 9 and the second partition 10, so that it can be fixed together with the second cover plate, making the structure more stable.

[0034] like Figures 2 to 7 An embodiment shown: a bidirectional flow fresh air fan using the ventilation layout structure of the above embodiment, wherein the air supply duct 1 is provided with, from left to right, the following: a fresh air filter 3, an electric heater 4, an evaporator 5, a drainage pump 6, and a fan assembly 7, for delivering outdoor fresh air into the room after being processed by the filter and the evaporator;

[0035] The exhaust duct 2 is provided with a fan assembly 7 and an exhaust filter 8 from left to right, for exhausting the indoor dirty air to the outside;

[0036] The fan components 7 of the air supply duct 1 and the exhaust duct 2 are respectively arranged at the oblique corners of the box body, and the wind directions inside the air supply duct 1 and the exhaust duct 2 are opposite;

[0037] The upper portion of the fan assembly 7 of the air supply duct 1 is separated into an electric control room 17 in which an electric control module is installed.

[0038] A water receiving pan 18 is provided on the side of the drainage pump 6. The water receiving pan 18 is U-shaped. Both sides of the water receiving pan 18 are respectively connected to the makeshift grooves 19 on the first partition 9 and the second partition 10. Water pan supports are provided on the upper and lower side panels of the box body. Screw holes are also provided on the water pan supports, so that the water receiving pan can be fixed to the water pan supports. In this way, the water receiving pan is still on the unit after the water receiving pan cover 22 is removed.

[0039] Both sides of the frame are closed by a first cover plate 20 and a second cover plate respectively.

[0040] The fan assembly 7 includes: a motor 11; the motor 11 drives the wind wheel, the motor 11 is mounted on a motor fixing bracket 12, the volute 13 is fixed on a volute fixing plate 14, the motor fixing bracket 12 is connected to the volute fixing plate 14, and the left and right sides of the volute fixing plate 14 are connected to the fan fixing bracket 15;

[0041] The fan assembly 7 is conveniently installed on the chassis assembly (first cover plate). The chassis assembly is provided with compression bolts. The fan assembly 7 can be fixed together with the compression bolts through the through holes on the fan fixing brackets 15 on both sides. During after-sales maintenance, the entire fan assembly 7 can also be conveniently disassembled and maintained. The volute 13 can also be removed separately to replace the internal motor 11. The on-site maintenance can be determined according to actual conditions.

[0042] A first mounting rail 24 is provided at the upper left corner of the first cover plate 20 , and the fresh air filter 3 is connected to the inner side of the first cover plate 20 via the first mounting rail 24 .

[0043] A first inspection port 25 is provided on the upper side of the fresh air filter 3, and the first inspection port 25 is closed by a first inspection cover 26. Since the fresh air filter 3 needs to be cleaned frequently, the first inspection cover 26 is fixed with a plum bolt, so that the first inspection cover 26 can be disassembled after sale without the need for additional tools to clean or replace the filter.

[0044] The second cover plate adopts a three-section design, including: a filter cover plate 21, a water tray cover plate 22 and a fan cover plate 23. The filter cover plate 21 and the fan cover plate 23 are respectively arranged on both sides of the water tray cover plate 22. A compression bolt 16 is provided on the upper side wall of the box body, which is fixed with the compression bolt 16 through the through holes on the fan fixing brackets 15 on both sides. The fan assemblies 7 in the supply air duct and the exhaust air duct can be maintained separately without affecting each other.

[0045] A second mounting rail 27 is provided at the lower portion of the second partition plate 10 , and the exhaust filter 8 is connected to the lower side of the second partition plate 10 via the second mounting rail 27 .

[0046] The fan cover 23 is provided with a second inspection port 28 , which is located on the side of the exhaust filter 8 . The second inspection port 28 is closed by a second inspection cover 29 , making it convenient to inspect and clean the exhaust filter 8 .

[0047] This embodiment includes the following working conditions:

[0048] Cooling season: The fresh air is first purified by the fresh air filter in the air supply duct, and then humidity is treated by the evaporator. After temperature and humidity treatment, it reaches the set temperature in the room, so that the indoor air maintains a comfortable ambient temperature and meets the required cleanliness and temperature and humidity requirements in the room. At the same time, the condensed water in the water tray is discharged to the outside of the machine by the drainage pump, and finally transported to various parts of the room by the fan. At the same time, the indoor air is discharged to the outside through exhaust, so that the indoor air is replaced, and a certain pressure difference is maintained between indoor and outdoor, so that the indoor air quality is always maintained.

[0049] Heating season: In cold weather, when the introduced external air needs to be heated, the introduced fresh air will first be purified through the fresh air filter, and then the temperature will be processed through the evaporator. At the same time, when the external air temperature is lower than a certain temperature, the electric heating will be turned on first to preheat the fresh air and then further processed through the evaporator. After temperature and humidity treatment, it will reach the set temperature in the room, so that the indoor air maintains a comfortable ambient temperature and meets the required cleanliness and temperature and humidity requirements in the room. Finally, it will be transported to various parts of the room through the fan, and the indoor air will be discharged to the outside through exhaust, so that the indoor air is replaced, and a certain pressure difference is maintained between indoor and outdoor, so that the indoor air quality is always maintained.

[0050] The present invention optimizes the fixing method of the middle partition and the evaporator, reasonably arranges the supply air duct and the exhaust air duct, separates the supply air duct and the exhaust air duct, and because there are fewer components arranged in the exhaust duct, the wind resistance is relatively smaller than that of the supply air duct. While maintaining the space for arranging the exhaust fan, the space for the exhaust duct is compressed, and the evaporator is arranged closer to the exhaust duct. Under the condition of a certain width of the unit, the evaporator has a longer length, the heat exchange area of ​​the evaporator is increased, and the space utilization is maximized.

[0051] The fresh air fan of the present invention has both air supply and exhaust and heat load processing functions. Its evaporator can be connected to a multi-connected outdoor unit and can be connected in parallel with other indoor units, thereby comprehensively controlling the entire air-conditioning system.

[0052] The fan module of the present invention combines the motor, wind wheel and volute as a whole, and is connected to the chassis using a bracket. After sales, the entire assembly can be easily disassembled for maintenance, or the volute can be easily disassembled to maintain other components therein.

[0053] The electric control box module of the present invention is fixed on the chassis assembly and placed inside the unit, thereby maintaining the overall appearance of the unit and increasing the after-sales maintenance space.

[0054] The bottom of the new air fan of the present invention has a three-section structure, and the fans can be maintained separately without affecting each other. At the same time, the bottom can be completely removed during engineering maintenance, which is convenient for internal maintenance of the unit.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A two-way flow fresh air fan, characterized in that: The ventilation layout structure of the fresh air blower is used, which includes: a box body with a quadrilateral frame, the two sides of the frame are respectively closed by a first cover plate and a second cover plate, and the interior of the box body is divided into an air supply duct and an exhaust duct. The air supply duct and the air exhaust duct are separated by a first partition plate and a second partition plate. The first partition and the second partition adopt a folding plate design. The ends of the first partition and the second partition are horizontally connected to the left and right sides of the box body respectively. The sides of the first partition and the second partition are connected to the first cover plate. The height of the first partition is higher than the second partition, and the first partition and the second partition are bent downward at the connection. The connection between the first partition and the second partition is used to connect the evaporator. The air supply duct is provided with the following components from left to right: a fresh air filter, an electric heater, an evaporator, a drainage pump, and a fan assembly; The exhaust duct is provided with the following components from left to right: a fan assembly and an exhaust filter; The fan components of the air supply duct and the exhaust duct are respectively arranged at the oblique corners of the box body, and the wind directions inside the air supply duct and the exhaust duct are opposite. The fan assembly includes: a motor; a motor drives a wind wheel, the motor is installed on a motor fixing bracket, the volute is fixed on a volute fixing plate, the motor fixing bracket is connected to the volute fixing plate, the left and right sides of the volute fixing plate are connected to the fan fixing bracket, and a compression bolt is provided on the box body, which is fixed to the compression bolt through the through holes on the fan fixing brackets on both sides.

2. A bidirectional flow fresh air fan according to claim 1, characterized in that: The upper portion of the fan assembly of the air supply duct is separated into an electric control room in which an electric control module is installed.

3. A bidirectional flow fresh air fan according to claim 1, characterized in that: A water receiving tray is provided on the side of the drainage pump. The water receiving tray is U-shaped. Both sides of the water receiving tray are respectively connected to the clearance grooves on the first partition plate and the second partition plate. The clearance grooves are opened near the second cover plate.

4. A bidirectional flow fresh air fan according to claim 1, characterized in that: The second cover plate adopts a three-section design, including: a filter cover plate, a water tray cover plate and a fan cover plate, and the filter cover plate and the fan cover plate are respectively arranged on both sides of the water tray cover plate.

5. The bidirectional flow fresh air fan according to claim 1, characterized in that: A first mounting rail is provided at the upper left corner of the first cover plate, and the fresh air filter is connected to the inner side of the first cover plate through the first mounting rail.

6. A bidirectional flow fresh air fan according to claim 4, characterized in that: A first inspection port is provided on the upper side of the fresh air filter, and the first inspection port is closed by a first inspection cover.

7. The bidirectional flow fresh air fan according to claim 1, characterized in that: A second mounting rail is provided at the lower portion of the second partition, and the exhaust filter is connected to the lower side of the second partition via the second mounting rail.

8. The bidirectional flow fresh air fan according to claim 4, characterized in that: The fan cover is provided with a second inspection port, the second inspection port is located on the side of the exhaust filter, and the second inspection port is closed by a second inspection cover.

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