Multifunctional wall-hung type fresh air handling unit

Abstract

The utility model discloses a multifunctional wall-hung type fresh air handling unit which comprises a machine shell, a total heat exchanger, an air valve, an outdoor fresh air input module and an indoor return air exhaust module, the machine shell is vertically arranged, the two sides of the machine shell are an indoor communication side and an outdoor communication side respectively, and pipe connecting openings communicated with the interior of the machine shell are formed in the upper portions and the lower portions of the two sides of the machine shell respectively; a shell cavity is formed in the machine shell, and a return air input chamber, a fresh air processing chamber, a fresh air input chamber and an exhaust chamber are formed in the shell cavity. The total heat exchanger is arranged in an intersection area among the return air input chamber, the fresh air input chamber, the fresh air processing chamber and the exhaust chamber, and a fresh air conveying channel communicating with the fresh air input chamber and the fresh air processing chamber and a return air conveying channel communicating with the return air input chamber and the exhaust chamber are formed in the total heat exchanger. The air valve can be opened and closed to penetrate through the fresh air treatment chamber and the exhaust chamber; the outdoor fresh air input module is arranged in the fresh air input chamber and the fresh air processing chamber; and the indoor return air exhaust module is arranged in the return air input chamber and the exhaust chamber. The multifunctional computer desk has more diversified functions.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air units, in particular to a multifunctional wall-mounted fresh air unit. Background Art

[0002] Fresh air units are widely used in places such as residences, office buildings, and commercial buildings. Due to the relatively high airtightness of these places, it is easy to cause indoor air pollution, such as the accumulation of harmful substances such as carbon dioxide and formaldehyde. A fresh air unit is a device for indoor air purification and ventilation, and its main function is to introduce outdoor fresh air and discharge indoor polluted air. By installing a fresh air unit, the circulation of indoor and outdoor air can be realized, the accumulation of harmful substances can be reduced, and thus a fresher indoor air quality can be provided.

[0003] Existing wall-mounted fresh air units generally adopt an integrated design, integrating the outdoor fresh air input module and the indoor return air discharge module side by side up and down in one device to form an integrated system. Although this structural setting can save space and simplify installation to a certain extent, there are also some limitations. It can only realize the input of outdoor fresh air and the discharge of indoor return air, and cannot realize the function of circulating indoor return air when outdoor fresh air cannot enter the fresh air unit, and the function is relatively single.

[0004] Therefore, it is necessary to propose a wall-mounted fresh air unit with more diverse functions. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a multifunctional wall-mounted fresh air unit.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multifunctional wall-mounted fresh air unit comprises a casing, a total heat exchanger, an air valve, an outdoor fresh air input module and an indoor return air exhaust module, wherein the casing is arranged vertically, and the two sides of the casing are respectively an indoor connecting side and an outdoor connecting side, and the upper and lower parts of the two sides are respectively provided with pipe ports connected to the inside of the casing; the casing is provided with a shell cavity therein, and the upper part of the shell cavity corresponding to the indoor connecting side is divided into a return air input chamber, the lower part of the shell cavity corresponding to the indoor connecting side is divided into a fresh air processing chamber, the upper part of the shell cavity corresponding to the outdoor connecting side is divided into a fresh air input chamber, and the lower part of the shell cavity corresponding to the outdoor connecting side is divided into an exhaust chamber ; The total heat exchanger is arranged in the intersection area between the return air input room, the fresh air input room, the fresh air treatment room and the exhaust room, and it respectively forms a fresh air delivery path connecting the fresh air input room and the fresh air treatment room and a return air delivery path connecting the return air input room and the exhaust room; The air valve can be switched to penetrate the fresh air treatment room and the exhaust room, and through its switch, the fresh air treatment room and the exhaust room are connected or separated; The outdoor fresh air input module is arranged in the fresh air input room and the fresh air treatment room to input outdoor fresh air; The indoor return air exhaust module is arranged in the return air input room and the exhaust room to exhaust the indoor return air.

[0008] As a further technical solution of the utility model: the outdoor fresh air input module includes an air supply fan unit arranged in the fresh air treatment room and connected to the pipe connection port at the lower part of the indoor connecting side, a heat exchanger erected in the middle section of the fresh air treatment room and separating the fresh air treatment room, and a fresh air filter unit arranged in the fresh air input room, for outdoor fresh air to be input from the pipe connection port at the upper part of the outdoor connecting side. After the outdoor fresh air is processed by the fresh air filter unit, the total heat exchanger and the heat exchanger in turn, it is supplied to the pipe connection port at the lower part of the indoor connecting side as the air supply fan unit operates.

[0009] As a further technical solution of the utility model: the heat exchanger is a finned heat exchanger, which is located between the air valve and the air supply fan unit.

[0010] As a further technical solution of the utility model: the indoor return air exhaust module includes a return air filter unit arranged in the return air input room and an exhaust fan unit arranged in the exhaust room and connected with the pipe port at the lower part of the outdoor connecting side, so that the indoor return air is input from the pipe port at the upper part of the indoor connecting side, and the indoor return air is processed by the return air filter unit and the total heat exchanger in turn, and then discharged to the pipe port at the lower part of the outdoor connecting side as the exhaust fan unit operates.

[0011] As a further technical solution of the utility model: a plurality of partitions are arranged in the shell cavity to separate the fresh air processing chamber, the return air input chamber, the exhaust chamber and the fresh air input chamber, and the air valve is installed on the partition between the fresh air processing chamber and the exhaust chamber.

[0012] As a further technical solution of the present utility model: The total heat exchanger is provided with a plurality of connecting frames on its side surface, which are connected to the end of the adjacent partition plate and the rear wall of the housing cavity, so as to fix the total heat exchanger in the housing cavity.

[0013] As a further technical solution of the present utility model: The total heat exchanger is arranged in a rhombus shape in the housing cavity.

[0014] As a further technical solution of the present utility model: Both the air supply fan unit and the exhaust fan unit include a fan mounting seat and a fan main body arranged in the fan mounting seat; the surface of the fan mounting seat of the air supply fan unit facing the heat exchanger is parallel to the heat exchanger; the surface of the fan mounting seat of the exhaust fan unit facing the total heat exchanger is an inclined surface parallel to the opposite surface of the total heat exchanger.

[0015] As a further technical solution of the present utility model: The front end surface of the housing is provided with a machine door at its upper part that can be opened and closed relative to the housing cavity.

[0016] As a further technical solution of the present utility model: The housing is provided with an upward-extending top hanging wall edge along the rear end edge at its top and a downward-extending bottom hanging wall edge along the rear end edge at its bottom; a plurality of hanging wall holes are evenly opened on both the top hanging wall edge and the bottom hanging wall edge for wall-mounted installation.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model provides a multifunctional wall-mounted fresh air unit. Through the cooperation among the housing, the total heat exchanger, the air valve, the outdoor fresh air input module and the indoor return air discharge module, it can not only realize the function of indoor and outdoor air circulation, but also realize the function of indoor return air circulation, with more diverse functions and more convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first perspective overall view of the multifunctional wall-mounted fresh air unit.

[0019] Figure 2 It is a second perspective overall view of the multifunctional wall-mounted fresh air unit.

[0020] Figure 3 It is an internal structure diagram of the multifunctional wall-mounted fresh air unit.

[0021] Figure 4 It is a connection state and exploded state diagram of the total heat exchanger and the connecting frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present utility model, and are not used to limit the protection scope of the present utility model.

[0023] Please refer to Figure 1 、 Figure 2 and Figure 3 , a multi-functional wall-mounted fresh air unit, comprising a casing 10, a total heat exchanger 20, a air valve 30, an outdoor fresh air input module (not labeled in the figure) and an indoor return air discharge module (not labeled in the figure). The casing 10 is vertically arranged. The two sides of the casing 10 are respectively an indoor connection side 101 and an outdoor connection side 102, and connection ports 103 communicating with the inside of the casing 10 are respectively provided at the upper and lower parts on both sides thereof; the casing 10 is provided with a shell cavity 11 communicating with each connection port 103 therein. An air return input chamber 111 is formed by partitioning the upper part corresponding to the indoor connection side 101 in the shell cavity 11, a fresh air treatment chamber 112 is formed by partitioning the lower part corresponding to the indoor connection side 101, a fresh air input chamber 113 is formed by partitioning the upper part corresponding to the outdoor connection side 102, and an exhaust chamber 114 is formed by partitioning the lower part corresponding to the outdoor connection side 102; the total heat exchanger 20 is arranged in the intersection area among the air return input chamber 111, the fresh air input chamber 113, the fresh air treatment chamber 112 and the exhaust chamber 114, and a fresh air conveying channel communicating the fresh air input chamber 113 and the fresh air treatment chamber 112 and an air return conveying channel communicating the air return input chamber 111 and the exhaust chamber 114 are respectively formed therein; the air valve 30 penetrates through the fresh air treatment chamber 112 and the exhaust chamber 114 in a switchable manner, and by its switching, the fresh air treatment chamber 112 and the exhaust chamber 114 are communicated or partitioned; the outdoor fresh air input module is arranged in the fresh air input chamber 113 and the fresh air treatment chamber 112 for inputting outdoor fresh air; the indoor return air discharge module is arranged in the air return input chamber 111 and the exhaust chamber 114 for discharging indoor return air.

[0024] Further, in this embodiment, the outdoor fresh air input module includes a supply air fan unit 41 arranged in the fresh air treatment chamber 112 and communicating with the connection port 103 at the lower part of the indoor connection side 101, a heat exchanger 42 standing in the middle section of the fresh air treatment chamber 112 and partitioning the fresh air treatment chamber 112, and a fresh air filtering unit 43 arranged in the fresh air input chamber 113 and partitioning the fresh air input chamber 113. When the multi-functional wall-mounted fresh air unit operates in fresh air mode, outdoor fresh air is input from the connection port 103 at the upper part of the outdoor connection side 102. After passing through the fresh air filtering unit 43, the total heat exchanger 20 and the heat exchanger 42 in sequence, with the operation of the supply air fan unit 41, the outdoor fresh air is supplied to the connection port 103 at the lower part of the indoor connection side 101.

[0025] Further, in this embodiment, the heat exchanger 42 adopts a finned heat exchanger, which operates as an evaporator during refrigeration and as a condenser during heating, and is located between the air valve 30 and the supply air fan unit 41.

[0026] Further, in this embodiment, the indoor return air discharge module includes a return air filtration unit 51 disposed in the return air input chamber 111 to separate the return air input chamber 111, and an exhaust fan unit 52 disposed in the exhaust chamber 114 and communicating with the connection port 103 at the lower part of the outdoor communication side 102. When the multifunctional wall-mounted fresh air unit operates with fresh air, indoor return air is input from the connection port 103 at the upper part of the indoor communication side 101. After the indoor return air passes through the return air filtration unit 51 and the total heat exchanger 20 in sequence, with the operation of the exhaust fan unit 52, it discharges air from the connection port 103 at the lower part of the outdoor communication side 102.

[0027] Further, in this embodiment, the fresh air filtration unit 43 is formed by combining multiple filters, including but not limited to G4 filters, F8 filters, H10 filters, and H13 filters.

[0028] Further, in this embodiment, the return air filtration unit 51 uses a G4 filter, or multiple filters can also be combined.

[0029] Further, in this embodiment, several partition plates 12 are provided in the housing cavity 11 to separate the fresh air treatment chamber 112, the return air input chamber 111, the exhaust chamber 114, and the fresh air input chamber 113. The air valve 30 is installed on the partition plate 12 located between the fresh air treatment chamber 112 and the exhaust chamber 114; with reference to Figure 4 , several connection frames 21 are provided on the side surface of the total heat exchanger 20 to connect with the end of the adjacent partition plate 12 and the rear wall of the housing cavity 11, so as to fix the total heat exchanger 20 in the housing cavity 11.

[0030] Further, in this embodiment, the total heat exchanger 20 is arranged in a rhombus shape in the housing cavity 11.

[0031] Further, in this embodiment, both the air supply fan unit 41 and the exhaust fan unit 52 include a fan mounting base 61 and a fan main body 62 disposed in the fan mounting base 61; the surface of the fan mounting base 61 of the air supply fan unit 41 facing the heat exchanger 42 is parallel to the heat exchanger 42 for facilitating air guiding; the surface of the fan mounting base 61 of the exhaust fan unit 52 facing the total heat exchanger 20 is an inclined surface parallel to the opposite surface of the total heat exchanger 20 for facilitating air guiding.

[0032] Further, in this embodiment, a machine door 13 that can be opened and closed relative to the housing cavity 11 is provided at the upper part of the front end surface of the machine shell 10 for facilitating daily maintenance and repair.

[0033] Further, in this embodiment, on the top of the casing 10, a top wall hanging edge 14 extending upward is installed along the rear edge, and on the bottom of the casing 10, a bottom wall hanging edge 15 extending downward is installed along the rear edge; a plurality of wall hanging holes 104 are spacedly provided on both the top wall hanging edge 14 and the bottom wall hanging edge 15 for wall hanging installation.

[0034] It can be understood that the usage method of a multi-functional wall-mounted fresh air unit of the present utility model is as follows: when the multi-functional wall-mounted fresh air unit operates with fresh air, the external valves on the external pipelines connected to the two connecting pipe openings 103 communicating with the fresh air input chamber 113 and the exhaust chamber 114 are opened, and the air valve 30 between the fresh air treatment chamber 112 and the exhaust chamber 114 is closed. The outdoor fresh air and the indoor return air pass through the total heat exchanger 20 synchronously to recover the cold or heat in the room. Subsequently, the indoor return air is discharged outdoors, and the outdoor fresh air passes through the finned heat exchanger, is cooled or heated, and then sent indoors;

[0035] When the multi-functional wall-mounted fresh air unit operates with return air, the external valves on the external pipelines connected to the two connecting pipe openings 103 communicating with the fresh air input chamber 113 and the exhaust chamber 114 are closed, and the air valve 30 between the fresh air treatment chamber 112 and the exhaust chamber 114 is opened. Thus, in the case where the outdoor fresh air cannot enter the unit, the indoor return air can sequentially pass through the return air conveying channel of the total heat exchanger 20 and the air valve 30, and then pass through the finned heat exchanger, is cooled or heated, and then sent back indoors;

[0036] In this way, the multi-functional wall-mounted fresh air unit can not only realize the function of indoor and outdoor air circulation, but also realize the function of indoor return air circulation.

[0037] In summary, a multi-functional wall-mounted fresh air unit of the present utility model, through the cooperation among the casing 10, the total heat exchanger 20, the air valve 30, the outdoor fresh air input module and the indoor return air discharge module, can not only realize the function of indoor and outdoor air circulation, but also realize the function of indoor return air circulation, with more diverse functions and more convenient use.

[0038] As long as it does not violate the idea of the creation of the present utility model, any combination of various different embodiments of the present utility model shall be regarded as the content disclosed in the present utility model; within the scope of the technical concept of the present utility model, various simple modifications of the technical solution and any combination of different embodiments that do not violate the idea of the creation of the present utility model shall be within the protection scope of the present utility model.

Claims

1. A multifunctional wall-mounted fresh air unit, characterized in that: The invention comprises a casing (10), a total heat exchanger (20), an air valve (30), an outdoor fresh air input module and an indoor return air exhaust module. The casing (10) is arranged in a vertical direction. Two sides of the casing (10) are respectively an indoor connecting side (101) and an outdoor connecting side (102), and a pipe connection port (103) communicating with the interior of the casing (10) is provided at the upper part and the lower part of the two sides. The casing (10) is provided with a casing cavity (11) therein. The casing cavity (11) is provided with a return air input chamber (111) formed in the upper part corresponding to the indoor connecting side (101), a fresh air processing chamber (112) formed in the lower part corresponding to the indoor connecting side (101), a fresh air input chamber (113) formed in the upper part corresponding to the outdoor connecting side (102), and an exhaust chamber (114) formed in the lower part corresponding to the outdoor connecting side (102); the total heat exchanger (20), an indoor connecting side (102), an outdoor connecting side (102), and an outdoor connecting side (102). The exchanger (20) is arranged at the intersection area between the return air input chamber (111), the fresh air input chamber (113), the fresh air treatment chamber (112) and the exhaust chamber (114), and is respectively formed with a fresh air delivery passage connecting the fresh air input chamber (113) and the fresh air treatment chamber (112), and a return air delivery passage connecting the return air input chamber (111) and the exhaust chamber (114); the air valve (30) can be switched to penetrate the fresh air treatment chamber (112) and the exhaust chamber (114), and the fresh air treatment chamber (112) and the exhaust chamber (114) are connected or disconnected by switching the air valve (30); the outdoor fresh air input module is arranged between the fresh air input chamber (113) and the fresh air treatment chamber (112) to input outdoor fresh air; the indoor return air discharge module is arranged between the return air input chamber (111) and the exhaust chamber (114) to discharge indoor return air.

2. The multifunctional wall-mounted fresh air unit according to claim 1, characterized in that: The outdoor fresh air input module comprises an air supply fan unit (41) arranged in the fresh air treatment chamber (112) and connected to the pipe connection port (103) at the lower part of the indoor connecting side (101), a heat exchanger (42) vertically arranged in the middle section of the fresh air treatment chamber (112) and separating the fresh air treatment chamber (112), and a fresh air filter unit (43) arranged in the fresh air input chamber (113), so that outdoor fresh air can be input from the pipe connection port (103) at the upper part of the outdoor connecting side (102). After being processed by the fresh air filter unit (43), the total heat exchanger (20) and the heat exchanger (42) in sequence, the outdoor fresh air is supplied to the pipe connection port (103) at the lower part of the indoor connecting side (101) as the air supply fan unit (41) operates.

3. The multifunctional wall-mounted fresh air unit according to claim 2, characterized in that: The heat exchanger (42) is a fin-type heat exchanger, which is located between the air valve (30) and the air supply fan unit (41).

4. The multifunctional wall-mounted fresh air unit according to claim 2, wherein: The indoor return air exhaust module comprises a return air filter unit (51) arranged in a return air input chamber (111) and an exhaust fan unit (52) arranged in an exhaust chamber (114) and connected to a pipe connection port (103) at the lower portion of an outdoor communication side (102), so that indoor return air is input from the pipe connection port (103) at the upper portion of the indoor communication side (101), and the indoor return air is processed by the return air filter unit (51) and the total heat exchanger (20) in sequence, and then discharged to the pipe connection port (103) at the lower portion of the outdoor communication side (102) as the exhaust fan unit (52) operates.

5. The multifunctional wall-mounted fresh air unit according to claim 1, characterized in that: A plurality of partitions (12) are provided in the shell cavity (11) to separate the fresh air processing chamber (112), the return air input chamber (111), the exhaust chamber (114) and the fresh air input chamber (113). The air valve (30) is installed on the partition (12) between the fresh air processing chamber (112) and the exhaust chamber (114).

6. The multifunctional wall-mounted fresh air unit according to claim 1, characterized in that: The total heat exchanger (20) is provided with a plurality of connection frames (21) on its side surface, which are connected to the ends of the adjacent partitions (12) and the rear wall of the shell cavity (11) and are used to fix the total heat exchanger (20) in the shell cavity (11).

7. The multifunctional wall-mounted fresh air unit according to claim 4, characterized in that: The total heat exchanger (20) is arranged in a rhombus shape in the shell cavity (11).

8. The multifunctional wall-mounted fresh air unit according to claim 7, characterized in that: The air supply fan unit (41) and the exhaust fan unit (52) both comprise a fan mounting seat (61) and a fan body (62) arranged in the fan mounting seat (61); the side of the fan mounting seat (61) of the air supply fan unit (41) facing the heat exchanger (42) is parallel to the heat exchanger (42); the side of the fan mounting seat (61) of the exhaust fan unit (52) facing the total heat exchanger (20) is an inclined surface parallel to the opposite surface of the total heat exchanger (20).

9. The multifunctional wall-mounted fresh air unit according to claim 1, wherein: The front end surface of the casing (10) is provided with a door (13) at its upper part which can be opened and closed relative to the casing cavity (11).

10. The multifunctional wall-mounted fresh air unit according to claim 1, characterized in that: The housing (10) is provided with a top wall-hanging edge (14) extending upward along the rear edge of the top and a bottom wall-hanging edge (15) extending downward along the rear edge of the bottom; a plurality of wall-hanging holes (104) are evenly spaced on the top wall-hanging edge (14) and the bottom wall-hanging edge (15) for wall-hanging installation.

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