Improved ceiling type fresh air handling unit

Abstract

The utility model discloses an improved ceiling 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 two ends of the machine shell are an indoor communication end and an outdoor communication end respectively, and pipe connecting openings communicated with the interior of the machine shell are formed in the first side portion and the second side portion of the two ends of the machine shell respectively. A shell cavity is formed in the machine shell, and the interior of the shell cavity is divided into a fresh air processing chamber, a return air input chamber, an exhaust chamber and a fresh air input chamber. The total heat exchanger is arranged in an intersection area among the fresh air processing chamber, the return air input chamber, the exhaust chamber and the fresh air input 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 processing chamber and the return air input 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 an improved ceiling-mounted fresh air unit. Background Art

[0002] Fresh air units are widely used in residential, office, and commercial buildings. Due to their high airtightness, these spaces are prone to indoor air pollution, such as the accumulation of harmful substances like carbon dioxide and formaldehyde. Fresh air units are devices used for indoor air purification and ventilation. Their primary function is to introduce fresh air from outside and expel contaminated air from the interior. Installing a fresh air unit allows for indoor and outdoor air circulation, reducing the accumulation of harmful substances and providing fresher indoor air quality.

[0003] Existing ceiling-mounted fresh air units generally adopt an integrated design, integrating the outdoor fresh air input module and the indoor return air exhaust module side by side into a single device, forming an integrated system. While this structural arrangement can save space and simplify installation to a certain extent, it also has some limitations. It can only realize the input of outdoor fresh air and the exhaust of indoor return air, but cannot realize the function of circulating indoor return air when the outdoor fresh air cannot enter the fresh air unit, resulting in a relatively simple function.

[0004] Therefore, it is necessary to propose an improved ceiling-mounted fresh air unit with more diverse functions. Utility Model Content

[0005] The purpose of the utility model is to provide an improved ceiling-mounted fresh air unit.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The evaporator draws air from the heat exchanger to the exhaust fan, and the exhaust fan draws air from the heat exchanger to the exhaust fan, and the exhaust fan draws air from the heat exchanger to the exhaust fan.

[0008] The air valve can be opened and closed to connect the fresh air treatment chamber and the return air input chamber, and the fresh air treatment chamber and the return air input chamber can be connected or isolated by opening and closing the air valve;

[0009] The outdoor fresh air input module is arranged in the fresh air input room and the fresh air processing room to input outdoor fresh air;

[0010] The indoor return air exhaust module is arranged in the return air input chamber and the exhaust chamber to exhaust the indoor return air.

[0011] As a further technical solution of the present invention: 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 on the first side of the indoor connecting end, a heat exchanger arranged in the middle section of 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 on the second side of the outdoor connecting end. After the outdoor fresh air is processed by the fresh air filter unit, the full heat exchanger and the heat exchanger in sequence, it is supplied to the pipe connection port on the first side of the indoor connecting end as the air supply fan unit operates.

[0012] As a further technical solution of the present invention: the heat exchanger adopts a fin-type heat exchanger, which is arranged obliquely in the fresh air treatment chamber and divides the fresh air treatment chamber.

[0013] As a further technical solution of the present invention: 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 to the pipe port on the first side of the outdoor connecting end, so that the indoor return air is input from the pipe port on the second side of the indoor connecting end. After the indoor return air passes through the return air filter unit and the full heat exchanger in turn, it is discharged to the pipe port on the first side of the outdoor connecting end as the exhaust fan unit operates.

[0014] As a further technical solution of the present invention: a plurality of partitions are provided 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; the full heat exchanger is provided with a plurality of connecting frames on its side that are connected to the adjacent partition ends and the top wall of the shell cavity, fixing the full heat exchanger in the middle of the shell cavity.

[0015] As a further technical solution of the present invention: the total heat exchanger is arranged in a diamond shape in the middle of the shell cavity; the air supply fan unit and the exhaust fan unit both include a fan mounting seat and a fan body arranged in the fan mounting seat, and the side of the fan mounting seat facing the total heat exchanger is an inclined surface parallel to the opposite surface of the total heat exchanger.

[0016] As a further technical solution of the present invention: the casing is provided with a plurality of hanging brackets at intervals at the bottom of the indoor connecting end and the outdoor connecting end for hanging.

[0017] Compared with the existing technology, the beneficial effect of the utility model is: the utility model proposes an improved ceiling-mounted fresh air unit which can realize the function of indoor and outdoor air circulation and the function of indoor return air circulation through the cooperation between the casing, full heat exchanger, air valve, outdoor fresh air input module and indoor return air exhaust module. It has more diverse functions and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the overall first-person perspective of the improved ceiling-mounted fresh air unit.

[0019] Figure 2 This is the overall view from the second perspective of the improved ceiling-mounted fresh air unit.

[0020] Figure 3 This is the internal structure diagram of the improved ceiling-mounted fresh air unit.

[0021] Figure 4 This is the schematic diagram of the supply fan unit and the exhaust fan unit.

[0022] Figure 5 Diagram showing the connection and decomposition states of the full heat exchanger and the connection frame. DETAILED DESCRIPTION

[0023] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the scope of protection of the present invention.

[0024] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4An improved ceiling-mounted fresh air unit includes a housing 10, a total heat exchanger 20, a damper 30, an outdoor fresh air input module 40, and an indoor return air exhaust module 50. The housing 10 is horizontally arranged, and the two ends of the housing 10 are respectively an indoor connecting end 101 and an outdoor connecting end 102, and a first side portion and a second side portion of the two ends are respectively provided with a pipe port 103 connected to the interior of the housing 10; the housing 10 is provided with a shell cavity 11 connected to each pipe port 103, and the first side portion of the housing cavity 11 corresponding to the indoor connecting end 101 is separated into a fresh air treatment chamber 111 and an outdoor air treatment chamber 111 corresponding to the indoor connecting end The second side of the shell 101 is divided into a return air input chamber 112, the first side corresponding to the outdoor connecting end 102 is divided into an exhaust chamber 113, and the second side corresponding to the outdoor connecting end 102 is divided into a fresh air input chamber 114; the total heat exchanger 20 is arranged at the intersection of the fresh air treatment chamber 111, the return air input chamber 112, the exhaust chamber 113 and the fresh air input chamber 114, and is located in the middle of the shell 11, and is respectively formed with a fresh air delivery channel connecting the fresh air input chamber 114 and the fresh air treatment chamber 111 and a return air delivery channel connecting the return air input chamber 112 and the exhaust chamber 113;

[0025] The air valve 30 can be opened and closed to connect the fresh air treatment chamber 111 and the return air input chamber 112. By opening and closing the air valve 30, the fresh air treatment chamber 111 and the return air input chamber 112 are connected or disconnected.

[0026] The outdoor fresh air input module 40 is provided in the fresh air input chamber 114 and the fresh air processing chamber 111 for inputting outdoor fresh air;

[0027] The indoor return air exhaust module 50 is disposed in the return air input chamber 112 and the exhaust chamber 113 to exhaust the indoor return air.

[0028] Furthermore, in this embodiment, the outdoor fresh air input module 40 includes an air supply fan unit 41 arranged in the fresh air treatment chamber 111 and connected to the pipe connection port 103 on the first side of the indoor connecting end 101, a heat exchanger 42 arranged in the middle section of the fresh air treatment chamber 111 and separating the fresh air treatment chamber 111, and a fresh air filter unit 43 arranged in the fresh air input chamber 114 and separating the fresh air input chamber 114. When the improved ceiling-type fresh air unit is in fresh air operation, outdoor fresh air is input from the pipe connection port 103 on the second side of the outdoor connecting end 102. After being processed by the fresh air filter unit 43, the full heat exchanger 20 and the heat exchanger 42 in turn, the outdoor fresh air is supplied to the pipe connection port 103 on the first side of the indoor connecting end 101 as the air supply fan unit 41 operates.

[0029] Furthermore, in this embodiment, the heat exchanger 42 adopts a fin-type heat exchanger, which operates as an evaporator during cooling and as a condenser during heating. It is arranged at an angle in the fresh air treatment chamber 111 and is located between the connecting port of the air valve 30 connecting to the fresh air treatment chamber 111 and the air supply fan unit 41. By increasing the contact surface during fresh air treatment, the fresh air treatment efficiency is improved.

[0030] Furthermore, in this embodiment, the indoor return air exhaust module 50 includes a return air filter unit 51 arranged in the return air input chamber 112 to separate the return air input chamber 112, and an exhaust fan unit 52 arranged in the exhaust chamber 113 and connected to the pipe port 103 on the first side of the outdoor connecting end 102. When the improved ceiling-type fresh air unit is in fresh air operation, the indoor return air is input from the pipe port 103 on the second side of the indoor connecting end 101, and the indoor return air is processed by the return air filter unit 51 and the full heat exchanger 20 in turn, and then discharged to the pipe port 103 on the first side of the outdoor connecting end 102 as the exhaust fan unit 52 operates.

[0031] Furthermore, in this embodiment, the fresh air filter unit 43 is formed by combining a plurality of filters, including but not limited to a G4 filter, an F8 filter, an H10 filter and an H13 filter.

[0032] Furthermore, in this embodiment, the return air filter unit 51 uses a G4 filter, and may also use a combination of multiple filters.

[0033] Furthermore, in this embodiment, the shell cavity 11 is provided with a plurality of partitions 12 that separate the fresh air processing chamber 111, the return air input chamber 112, the exhaust chamber 113 and the fresh air input chamber 114. The air valve 30 is installed on the partition 12 between the fresh air processing chamber 111 and the return air input chamber 112; Figure 5 The full heat exchanger 20 is provided with a plurality of connection frames 21 on its side that are connected to the ends of the adjacent partitions 12 and the top wall of the shell cavity 11, so as to fix the full heat exchanger 20 in the middle of the shell cavity 11.

[0034] Furthermore, in this embodiment, the total heat exchanger 20 is arranged in a diamond shape in the middle of the shell cavity 11.

[0035] Furthermore, the air supply fan unit 41 and the exhaust fan unit 52 both include a fan mounting base 61 and a fan body 62 arranged in the fan mounting base 61. The side of the fan mounting base 61 facing the total heat exchanger 20 is an inclined surface parallel to the opposite surface of the total heat exchanger 20 to facilitate air guidance.

[0036] Furthermore, in this embodiment, the housing 10 is provided with a plurality of hanging brackets 104 at intervals at the bottom of the indoor connecting end 101 and the outdoor connecting end 102 for hanging.

[0037] Furthermore, in this embodiment, the housing 10 is provided with a door 105 which can be opened and closed relative to the housing cavity 11 to facilitate daily inspection and maintenance.

[0038] It can be understood that the method of using the improved ceiling-mounted fresh air unit of the present invention is as follows: when the improved ceiling-mounted fresh air unit is in fresh air operation, the external valve on the external pipe connected to the two pipe ports communicating with the fresh air input chamber 114 and the exhaust chamber 113 is opened, the air valve 30 between the fresh air processing chamber 111 and the return air input chamber 112 is closed, and the outdoor fresh air and the indoor return air pass through the full heat exchanger 20 synchronously to recover the indoor cooling or heat. Subsequently, the indoor return air is discharged to the outside, and the outdoor fresh air passes through the finned heat exchanger again, and is cooled or heated before being sent to the room;

[0039] When the improved ceiling-mounted fresh air unit is in return air operation, the external valve on the external pipe connected to the two pipe ports communicating with the fresh air input chamber 114 and the exhaust chamber 113 is closed, and the air valve 30 between the fresh air processing chamber 111 and the return air input chamber 112 is opened. Thus, when the outdoor fresh air cannot enter the unit, the indoor return air can pass through the air valve 30 and pass through the finned heat exchanger, where it is cooled or heated before being sent back to the room.

[0040] In this way, the improved ceiling-mounted fresh air unit can realize the function of indoor and outdoor air circulation, as well as the function of indoor return air circulation.

[0041] To sum up, the utility model is an improved ceiling-mounted fresh air unit, which can realize the function of indoor and outdoor air circulation and the function of indoor return air circulation through the cooperation between the casing 10, the full heat exchanger 20, the air valve 30, the outdoor fresh air input module 40 and the indoor return air exhaust module 50. It has more diverse functions and is more convenient to use.

[0042] As long as it does not violate the creative idea of ​​the present invention, any combination of various different embodiments of the present invention should be regarded as the content disclosed by the present invention; within the technical concept of the present invention, any simple modification of the technical solution and any combination of different embodiments that do not violate the creative idea of ​​the present invention should be within the protection scope of the present invention.

Claims

1. An improved ceiling-mounted fresh air unit, characterized by: The invention comprises a casing (10), a total heat exchanger (20), an air valve (30), an outdoor fresh air input module (40) and an indoor return air exhaust module (50), wherein the casing (10) is arranged horizontally, and the two ends of the casing (10) are respectively an indoor connecting end (101) and an outdoor connecting end (102), and a first side portion and a second side portion of the two ends are respectively provided with a pipe port (103) connected with the interior of the casing (10); the casing (10) is provided with a shell cavity (11) therein, and the first side portion of the shell cavity (11) corresponding to the indoor connecting end (101) is separated to form a fresh air treatment chamber (111), a second side portion corresponding to the indoor connecting end (101) and a fresh air treatment chamber (111). The two side parts are divided into a return air input chamber (112), the first side part corresponding to the outdoor communication end (102) is divided into an exhaust chamber (113), and the second side part corresponding to the outdoor communication end (102) is divided into a fresh air input chamber (114); the total heat exchanger (20) is arranged at the intersection area between the fresh air treatment chamber (111), the return air input chamber (112), the exhaust chamber (113) and the fresh air input chamber (114), and is respectively formed with a fresh air delivery path connecting the fresh air input chamber (114) and the fresh air treatment chamber (111) and a return air delivery path connecting the return air input chamber (112) and the exhaust chamber (113); The air valve (30) is capable of opening and closing to connect the fresh air treatment chamber (111) and the return air input chamber (112), and by opening and closing the air valve (30), the fresh air treatment chamber (111) and the return air input chamber (112) are connected or disconnected. The outdoor fresh air input module (40) is arranged in the fresh air input chamber (114) and the fresh air processing chamber (111) to input outdoor fresh air; The indoor return air exhaust module (50) is arranged in the return air input chamber (112) and the exhaust chamber (113) to exhaust the indoor return air.

2. The improved ceiling-mounted fresh air unit according to claim 1 is characterized in that: The outdoor fresh air input module (40) comprises an air supply fan unit (41) arranged in the fresh air treatment chamber (111) and connected to the pipe connection port (103) on the first side of the indoor connecting end (101), a heat exchanger (42) arranged in the middle section of the fresh air treatment chamber (111), and a fresh air filter unit (43) arranged in the fresh air input chamber (114), for inputting outdoor fresh air from the pipe connection port (103) on the second side of the outdoor connecting end (102). After the outdoor fresh air is processed by the fresh air filter unit (43), the total heat exchanger (20), and the heat exchanger (42) in sequence, it is supplied to the pipe connection port (103) on the first side of the indoor connecting end (101) as the air supply fan unit (41) operates.

3. The improved ceiling-mounted fresh air unit according to claim 2 is characterized in that: The heat exchanger (42) is a fin-type heat exchanger, which is arranged obliquely in the fresh air treatment chamber (111) and divides the fresh air treatment chamber (111).

4. The improved ceiling-mounted fresh air unit according to claim 2 is characterized in that: The indoor return air exhaust module (50) comprises a return air filter unit (51) arranged in a return air input chamber (112) and an exhaust fan unit (52) arranged in an exhaust chamber (113) and connected to a pipe port (103) on a first side of an outdoor communication end (102). The indoor return air is input from the pipe port (103) on a second side of the indoor communication end (101). After the indoor return air passes through the return air filter unit (51) and the total heat exchanger (20) in sequence, it is exhausted to the pipe port (103) on the first side of the outdoor communication end (102) as the exhaust fan unit (52) operates.

5. The improved ceiling-mounted fresh air unit according to claim 1 is characterized in that: The shell cavity (11) is provided with a plurality of partitions (12) for separating a fresh air processing chamber (111), a return air input chamber (112), an exhaust chamber (113) and a fresh air input chamber (114); the full heat exchanger (20) is provided with a plurality of connecting frames (21) on its side surface for connecting with the ends of adjacent partitions (12) and the top wall of the shell cavity (11), so as to fix the full heat exchanger (20) in the middle of the shell cavity (11).

6. The improved ceiling-mounted fresh air unit according to claim 4 is characterized in that: The total heat exchanger (20) is arranged in a diamond shape in the middle of the shell cavity (11); the air supply fan unit (41) and the exhaust fan unit (52) both include 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) facing the total heat exchanger (20) is an inclined surface parallel to the opposite surface of the total heat exchanger (20).

7. The improved ceiling-mounted fresh air unit according to claim 1 is characterized in that: The casing (10) is provided with a plurality of hanging brackets (104) at intervals between the bottom of the indoor communication end (101) and the bottom of the outdoor communication end (102) for hanging.

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