CN210320318U

CN210320318U - Ventilation device and heat exchange equipment with same

Info

Publication number: CN210320318U
Application number: CN201921022750.3U
Authority: CN
Inventors: 彭闯; 张亚国; 刘亚平; 谭世征
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-04-14
Anticipated expiration: 2029-07-01

Abstract

The utility model relates to a ventilation device and a heat exchange device provided with the same, wherein the ventilation device is arranged on a suspended ceiling which is provided with an installation space, the suspended ceiling is provided with an installation opening which communicates the installation space with the external environment, the ventilation device is arranged on the installation opening, the ventilation device is provided with an access opening and a vent, and the ventilation device can be switched between a ventilation state and an access state; when the ventilation device is in a ventilation state, the installation space is communicated with the external environment through the ventilation opening; when the ventilation device is in a maintenance state, the installation space is communicated with the external environment through the maintenance opening. The ventilating device is independently installed at the installation opening, so that the size of the access opening can be set according to maintenance and replacement requirements without structural limitation of the main body of the air duct machine. When the heat exchange equipment provided with the ventilation device is in a normal working state, the air pipe machine main body exhausts air or returns air through the ventilation opening. And when the ducted air conditioner needs to be maintained or replaced, maintenance personnel can maintain or replace the ducted air conditioner main body in the installation space through the access hole.

Description

Ventilation device and heat exchange equipment with same

Technical Field

The utility model relates to a heat exchange equipment field especially relates to a ventilation unit and be equipped with its indirect heating equipment.

Background

Along with the improvement of science and technology and the improvement of living standard, people have higher and higher requirements on the living environment, and the air duct type air conditioner can not influence the attractiveness of the indoor environment due to the adoption of the installation mode of hiding in the suspended ceiling while realizing the indoor temperature adjustment, so that the air duct type air conditioner is more and more applied to various residences.

But hidden installation improves when pleasing to the eye degree, and the earlier stage installation, follow-up cleanness, maintenance and the change of tuber pipe machine all have great degree of difficulty. In the early installation process, engineering personnel need to comprehensively and carefully relate to the installation position and the installation method of the unit to delay the construction progress, and in the subsequent maintenance and replacement process of the air duct machine, the suspended ceiling is often needed to be damaged, so that the maintenance and replacement progress is seriously influenced.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a ventilation unit who effectively reduces the installation in earlier stage, later stage maintenance and the change degree of difficulty of tuber pipe machine and be equipped with its indirect heating equipment to the great problem of the degree of difficulty of installation in earlier stage, later stage maintenance and change of tuber pipe machine.

A ventilation device is arranged on a suspended ceiling with an installation space, and the suspended ceiling is provided with an installation opening for communicating the installation space with the external environment;

wherein, when the ventilation device is in the ventilation state, the installation space is communicated with the external environment through the ventilation opening; when the ventilation device is in the overhaul state, the installation space is communicated with the external environment through the overhaul port.

The ventilating device is independently installed at the installation opening, so that the size of the access opening can be set according to maintenance and replacement requirements without structural limitation of the main body of the air duct machine. When the heat exchange equipment provided with the ventilation device is in a normal working state, the air pipe machine main body exhausts air or returns air through the ventilation opening. And when the ducted air conditioner needs to be maintained or replaced, maintenance personnel can maintain the ducted air conditioner main body in the installation space through the access hole and can replace the ducted air conditioner main body through the access hole.

In one embodiment, the ventilation device comprises a mounting structure and a ventilation structure, the mounting structure is mounted on the mounting opening and forms the access opening, the ventilation opening is arranged on the ventilation structure, and the ventilation structure is rotatably connected to the mounting opening to shield or open the access opening; when the access opening is shielded by the ventilation structure, the ventilation device is in the ventilation state; when the access opening is opened by the ventilation structure, the ventilation device is in the access state.

In one embodiment, the ventilation device comprises a first ventilation unit and a second ventilation unit, the first ventilation unit and the second ventilation unit jointly form the access opening, the ventilation openings are formed in the first ventilation unit and the second ventilation unit, and a preset included angle is formed between the first ventilation unit and the second ventilation unit.

In one embodiment, the first ventilation unit comprises a first mounting structure and a first ventilation structure, the first mounting structure is mounted on the mounting opening, the first ventilation structure is rotatably connected to the first mounting structure, the second ventilation unit comprises a second mounting structure and a second ventilation structure, the second mounting structure is mounted on the mounting opening, and the second ventilation structure is rotatably connected to the second mounting structure;

wherein, first mounting structure reaches second mounting structure is respectively around establishing the partial edge of installing port is in order to form jointly the access hole, first ventilation structure with second ventilation structure can shield jointly the access hole, first ventilation structure with structural at least one of having all seted up of second ventilation the vent.

In one embodiment, the rotating shaft of the first ventilating structure and the rotating shaft of the second ventilating structure are respectively positioned on two opposite sides of the access opening, and the rotating shaft of the first ventilating structure is parallel to the rotating shaft of the second ventilating structure.

In one embodiment, when the first ventilation structure and the second ventilation structure jointly cover the access opening, one end of the first ventilation structure far away from the self rotating shaft is in contact with one end of the second ventilation structure far away from the self rotating shaft.

In one embodiment, the first ventilation structure includes a first ventilation panel and a first air guide, the first ventilation panel is provided with a first air outlet groove communicating the installation space with the external environment, the first air guide is installed in the first air outlet groove at intervals, and one ventilation opening is formed between every two adjacent first air guides.

In one embodiment, the first ventilation unit further includes a filter module and a module mounting assembly, the module mounting assembly is disposed on a side of the first ventilation panel facing the main body of the air duct machine, and the filter module is detachably mounted to the module mounting assembly.

In one embodiment, the second ventilation structure includes a second ventilation panel and a second wind guide, the second ventilation panel is provided with a second air outlet groove communicating the installation space with the external environment, the second wind guide is installed in the second air outlet groove at intervals, and one ventilation opening is formed between every two adjacent second wind guides.

In one embodiment, the second ventilation panel is further provided with an air return groove communicated with the installation space and the external environment, and the air return groove and the second air outlet groove are arranged at intervals.

The utility model provides a heat exchange equipment, installs in the furred ceiling that is formed with installation space, the intercommunication is seted up to the furred ceiling installation space and external environment's installing port, heat exchange equipment includes above-mentioned ventilation unit, tuber pipe machine main part install in installation space.

In one embodiment, the ducted air conditioner main body is installed in the installation space and arranged corresponding to the installation opening, the ducted air conditioner main body is provided with at least one air opening, the maintenance opening of the ventilation device is communicated with the air opening and the external environment, and the orthographic projection of the ducted air conditioner main body on the ventilation device is located in the range of the maintenance opening;

when the heat exchange equipment is in a normal working state, the access hole is in the partially opened state, and when the heat exchange equipment is in the inspected state, the access hole is in the completely opened state.

In one embodiment, the duct machine body is provided with a front air outlet and a lower air outlet, and an air outlet direction of the front air outlet intersects with an air outlet direction of the lower air outlet.

In one embodiment, the ventilation device comprises a first ventilation unit and a second ventilation unit, the first ventilation unit is arranged corresponding to the front air outlet, the second ventilation unit is arranged corresponding to the lower air outlet, and the first ventilation unit and the second ventilation unit jointly form the access opening.

In one embodiment, the duct machine main body is further provided with an air return opening, and the air return opening is arranged corresponding to the second ventilation unit.

Drawings

Fig. 1 is an assembly view of a heat exchange device according to an embodiment of the present invention installed on a ceiling;

FIG. 2 is an exploded view of the ducted body and ventilation assembly of the ducted machine of FIG. 1;

fig. 3 is a schematic structural view of a first ventilating unit of the ventilating device shown in fig. 2;

FIG. 4 is an exploded view of the first venting device of FIG. 3;

fig. 5 is a schematic structural view of a second ventilating unit of the ventilating device shown in fig. 2.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and fig. 2, the heat exchange device of the embodiment of the present invention is at least partially installed in an indoor ceiling 300 formed with an installation space 310, and is used for adjusting an indoor temperature.

The suspended ceiling 300 is located at the junction of a ceiling and a wall and includes a first top surface 320 and a second top surface 340 connected to each other. The first top surface 320 is spaced apart from the wall surface and extends from the ceiling toward the ground in the vertical direction, and the second top surface 340 is spaced apart from the ceiling and extends from the wall surface in the horizontal direction. The side of the first top surface 320 remote from the ceiling intersects the side of the second top surface 340 remote from the wall surface to form an enclosed installation space 310.

Rectangular first dead slot is seted up to first top surface 320, and the long limit of first dead slot extends along the horizontal direction, and the minor face of first dead slot extends along vertical direction. Rectangular second dead slot is seted up to second top surface 340, and the long limit of second dead slot extends along the horizontal direction, and the minor face of second dead slot extends perpendicularly to the wall. Furthermore, one long side of the first empty groove and one long side of the second empty groove completely coincide at the connection of the first top surface 320 and the second top surface 340. Thus, the first empty groove and the second empty groove are communicated with each other to form an installation opening for communicating the installation space 310 with the external environment. It will be appreciated that the shape of the ceiling 300 and mounting opening is not so limited, and in some embodiments, may be provided in other shapes as desired.

Referring to fig. 1, the heat exchanger includes a duct type air conditioner main body 100 and a ventilation device 200, the duct type air conditioner main body 100 is installed in the installation space 310 and is disposed corresponding to the installation opening, and the ventilation device 200 is installed at the installation opening independently from the duct type air conditioner main body 100. The ducted air conditioner main body 100 is provided with at least one air opening for air outlet or air return, the ventilation device 200 is provided with an access opening and a ventilation opening which are communicated with the air opening and the external environment, and the orthographic projection of the ducted air conditioner main body 100 on the ventilation device 200 is located in the range of the access opening. Wherein the ventilation device 200 is switchable between a ventilation state and a service state. When the ventilation device 200 is in the ventilation state, the installation space 310 communicates with the external environment through the ventilation opening. When the ventilation device 200 is in the service state, the installation space 310 communicates with the external environment through the service opening.

The ventilation device 200 of the heat exchanger is independently installed at the installation opening, so that the size of the access opening can be set according to the maintenance and replacement requirements without being limited by the structure of the air duct machine main body 100. When the heat exchange equipment is in a normal working state, the air outlet of the air duct machine main body 100 is used for exhausting air or returning air through the air vent. When the ducted air conditioner main body 100 needs to be repaired or replaced, the installation space 310 is communicated with the external environment through the access opening. Because the orthographic projection of the ducted air conditioner main body 100 on the ventilation device 200 is located in the range of the access opening, enough operation space is provided, and a maintenance worker can maintain the ducted air conditioner main body 100 in the installation space 310 through the access opening and can replace the ducted air conditioner main body 100 through the access opening.

Specifically, in some embodiments, the ducter body 100 is generally a cube-shaped structure that is removably mounted to a ceiling or wall. A front air outlet is formed in a side surface of the duct main body 100 close to the first top surface 320 of the ceiling 300, and the front air outlet corresponds to a first empty groove formed in the first top surface 320. The side surface of the duct machine main body 100 close to the second top surface 340 is provided with a lower air outlet and a lower air return inlet at intervals, and the lower air outlet and the lower air return inlet are arranged corresponding to the second empty slot formed on the second top surface 340. Thus, the front air outlet is intersected with the ventilation directions of the lower air outlet and the lower air return inlet, the front air outlet blows air in the horizontal direction, the lower air outlet blows air in the vertical direction, and the outside air returns to the air pipe machine main body 100 through the lower air return inlet from bottom to top. It is understood that in other embodiments, the number and the positions of the air ports opened in the duct machine main body 100 are not limited thereto, and may be set as required.

The ventilation device 200 includes a mounting structure and a ventilation structure, the mounting structure is mounted on the mounting opening and forms an access opening, the ventilation opening is opened on the ventilation structure, and the ventilation structure is rotatably connected to the mounting opening to shield or open the access opening, so as to maintain or replace the ducted air conditioner main body 100. When the ventilation structure covers the access opening, the ventilation device 200 is in a ventilation state. When the vent structure opens the access opening, the vent 200 is in an access condition.

Specifically, in the following embodiments, the ventilation device 200 includes a first ventilation unit 230 and a second ventilation unit 250. The first ventilation unit 230 is installed in the first empty groove of the first top surface 320 to correspond to the front air outlet of the duct body 100. The second ventilating unit 250 is installed in the second empty groove of the second top surface 340, and is disposed corresponding to the lower air outlet and the lower air return inlet of the air duct machine body 100. So, first ventilation unit 230 and second ventilation unit 250 form and predetermine contained angle (specifically for 90 °) with the common mounting hole on the closed ceiling 300 to form a whole with furred ceiling 300, first ventilation unit 230 and second ventilation unit 250 form the access hole jointly when undertaking ventilation function so that maintain or change tuber pipe machine main part 100.

As shown in fig. 1, 3 and 4, in some embodiments, the first ventilation unit 230 includes a first mounting structure 232 and a first ventilation structure 234 rotatably mounted on the first mounting structure 232, the first ventilation structure 234 is mounted on the first hollow slot through the first mounting structure 232, and the airflow output from the front air outlet flows out through the first ventilation structure 234.

Specifically, in one embodiment, the first mounting structure 232 is a rectangular frame structure with an opening at one end, and includes a long side and two short sides connected to two ends of the long side, so as to match with the first empty slot to surround the first empty slot. Specifically, the cross section of the long side and the short side of the first mounting structure 232 is "L" shaped, and includes a first mounting portion 2321 and a second mounting portion 2323 connected to one side of the first mounting portion 2321 and perpendicular to the first mounting portion 2321, the first mounting portion 2321 is attached to the first top surface 320, and the second mounting portion 2323 is attached to the groove wall of the first empty groove, so as to be firmly mounted to the first top surface 320.

The first ventilation structure 234 includes a first ventilation panel 2341, and the first ventilation panel 2341 has a rectangular plate-shaped structure and a shape matching the shape of the first mounting structure 232. The first mounting structure 232 is disposed around the periphery of the first ventilation panel 2341, and the long edge of one side of the first ventilation panel 2341 is rotatably connected to the second mounting portion 2323 of the long edge of one side of the first mounting structure 232 through the first hinge 236, so that the first empty slot can be opened or shielded. Specifically, in one embodiment, two first hinges 236 are disposed at intervals along the long side direction of the first ventilation panel 2341. It will be appreciated that the manner of connecting the first ventilation panel 2341 to the first mounting structure 232 is not limited thereto, and may be provided as desired.

Further, first air-out groove of air outlet and external environment before first ventilation panel 2341 is close to one side of first hinge 236 and sets up the intercommunication, first air-out groove is the rectangular form that extends along first ventilation panel 2341's length direction, a plurality of first air guide 2343 extend along the length direction of first air-out groove, and install in first air-out groove along the width direction interval of first air-out groove, form a vent between two adjacent first air guide 2343, the air current of preceding air outlet output flows through the vent of a plurality of interval arrangements.

In one embodiment, the first ventilation structure 234 further includes a filter module 2345 and a module mounting assembly 2347. Specifically, module installation component 2347 is located first ventilation panel 2341 towards one side of tuber pipe main part 100, includes the module locating part that sets up the module installed part and connect two module installed parts at the interval in first ventilation panel 2341 length direction, and two module installed parts and module locating part form the module mounting groove that is used for installing filtration module 2345 jointly. The mounting hole that communicates the module mounting groove is all seted up on the relative both sides surface of two module installed parts. The filtering module 2345 comprises a hollow filtering screen mounting frame 2345b and a filtering screen 2345a installed on the filtering screen mounting frame 2345b, wherein sliding limiting parts are respectively embedded at two opposite ends of the filtering screen mounting frame 2345b, and the sliding limiting parts can reciprocate in the length direction of the filtering screen 2345a to protrude out of the filtering screen mounting frame 2345b and are inserted into mounting holes in the module mounting piece.

So, filter screen mounting bracket 2345b is spacing in the module mounting groove, and the slip locating part inserts in the mounting hole of module installed part to prevent filter screen mounting bracket 2345b pine from taking off. Filter module 2345 installs in module installation component 2347 through module installation component 2347 detachably to the air current to preceding air outlet output filters, guarantees the cleanness of indoor air. It can be understood that the filter screen 2345a with different materials and structures can be selected according to the types of substances to be filtered, so that the requirements of different ventilation amounts and different purification effects can be met.

As shown in fig. 1 and 4, in some embodiments, the second ventilating unit 250 includes a second mounting structure 252 and a second ventilating structure 254 rotatably mounted on the second mounting structure 252, the second ventilating structure 254 is mounted on the second hollow slot through the second mounting structure 252, and the airflow output from the lower outlet flows out through the first ventilating structure 234.

Specifically, in one embodiment, the second mounting structure 252 is a rectangular frame structure with an opening at one end, and includes a long side and two short sides connected to two ends of the long side, so as to match with the second empty slot to form the second empty slot. Specifically, the cross-section of the long side and the short side of the second mounting structure 252 is "L" shaped, and includes a third mounting portion 2521 and a fourth mounting portion 2523 connected to one side of the third mounting portion 2521 and perpendicular to the third mounting portion 2521, the third mounting portion 2521 is attached to the second top surface 340, and the fourth mounting portion 2523 is attached to the wall of the second groove, so as to be firmly mounted to the second top surface 340.

The second ventilating structure 254 includes a second ventilating panel 2541, and the second ventilating panel 2541 has a rectangular plate-shaped structure and a shape matching the shape of the second mounting structure 252. The second mounting structure 252 is wound around the outer periphery of the second ventilating panel 2541, and one long side of the second mounting structure 252 is rotatably connected to the third mounting portion 2521 of one long side of the second mounting structure 252 by the second hinge 256, so that the first empty groove can be opened or closed. Specifically, in one embodiment, the two second hinges 256 are disposed at intervals along the longitudinal direction of the second ventilating panel 2541. It is to be understood that the connection manner of the second ventilating panel 2541 and the second mounting structure 252 is not limited thereto, and may be set as required.

Further, the second air-out groove of air outlet and external environment before the intercommunication is seted up to the one side that second vent panel 2541 kept away from second hinge 256, the second air-out groove is the rectangular form that extends along the length direction of second vent panel 2541, a plurality of second air guide 2543 extend along the length direction of second air-out groove, and install in the second air-out groove along the width direction interval of second air-out groove, form a vent between two adjacent second air guide 2543, the air current of lower air outlet output flows through the vent of a plurality of interval arrangements. One side of the second ventilating panel 2541 close to the second hinge 256 is provided with a return air groove 2541a communicating the lower return air inlet and the external environment, the return air grooves 2541a are arranged in a matrix, and air in the external environment returns to the inside of the air pipe machine main body 100 through the return air groove 2541a and the lower return air inlet.

So, first mounting structure 232 and second mounting structure 252 are around the edge of locating first dead slot and second dead slot respectively to encircle the mounting hole edge jointly and form the access hole, the axis of rotation of first ventilation panel 2341 and the axis of rotation of second ventilation panel 2541 are located the relative both sides of access hole respectively and are parallel to each other. When the access hole is shielded jointly by the first ventilation structure 234 and the second ventilation structure 254, one end of the first ventilation panel 2341 far away from the rotation axis of the first ventilation panel and one end of the second ventilation panel 2541 far away from the rotation axis of the second ventilation panel are in mutual contact, an included angle formed between the first ventilation structure 234 and the second ventilation structure 254 is 90 degrees, the access hole is shielded jointly by the first ventilation structure 234 and the second ventilation structure 254, and the first ventilation structure and the second ventilation structure form a whole with the suspended ceiling 300, and meanwhile, the normal air inlet and air return processes of the heat exchange device can be realized by guiding airflow to flow. When the ducted air conditioner main body 100 needs to be repaired or replaced, the first ventilation panel 2341 and the second ventilation panel 2541 can be rotated in opposite directions to open the first ventilation structure 234 and the second ventilation structure 254, and the first mounting structure 232 and the second mounting structure 252 are always mounted on the ceiling 300 without being detached, so that the ducted air conditioner main body 100 is completely exposed to a maintenance worker through the access opening, and the maintenance or replacement operation is facilitated.

Above-mentioned ventilation unit 200 and be equipped with its indirect heating equipment, owing to only need set up a installing port on furred ceiling 300 and can accomplish the installation of tuber pipe machine main part 100, consequently improved the installation effectiveness. Further, since the ventilator 200 is independently installed at the installation opening, the ducted body 100 can be freely replaced. More importantly, when the front air outlet and the lower air outlet are realized, the air duct machine main body 100 can be easily overhauled and replaced, and the difficulty in overhauling and replacing the air duct machine main body 100 is greatly reduced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A ventilation device is mounted on a suspended ceiling (300) with a mounting space (310), the suspended ceiling (300) is provided with a mounting opening for communicating the mounting space (310) with the external environment, the ventilation device (200) is mounted on the mounting opening, the ventilation device (200) is provided with an access opening and a ventilation opening, and the ventilation device (200) can be switched between a ventilation state and an access state;

wherein the installation space (310) is in communication with the environment through the ventilation opening when the ventilation device (200) is in the ventilation state; when the ventilation device (200) is in the service state, the installation space (310) is communicated with the external environment through the service opening.

2. The ventilation device according to claim 1, wherein the ventilation device (200) comprises a mounting structure and a ventilation structure, the mounting structure is mounted to the mounting opening and forms the access opening, the ventilation opening is opened in the ventilation structure, and the ventilation structure is rotatably connected to the mounting structure to shield or open the access opening; when the ventilation structure covers the access opening, the ventilation device (200) is in the ventilation state; when the vent structure opens the access opening, the vent device (200) is in the service state.

3. The ventilation device according to claim 1, wherein the ventilation device (200) comprises a first ventilation unit (230) and a second ventilation unit (250), the first ventilation unit (230) and the second ventilation unit (250) jointly form the access opening, the first ventilation unit (230) and the second ventilation unit (250) are provided with the ventilation openings, and a preset included angle is formed between the first ventilation unit (230) and the second ventilation unit (250).

4. The ventilation device according to claim 3, wherein the first ventilation unit (230) comprises a first mounting structure (232) and a first ventilation structure (234), the first mounting structure (232) is mounted to the mounting opening, the first ventilation structure (234) is rotatably connected to the first mounting structure (232), the second ventilation unit (250) comprises a second mounting structure (252) and a second ventilation structure (254), the second mounting structure (252) is mounted to the mounting opening, and the second ventilation structure (254) is rotatably connected to the second mounting structure (252);

the first mounting structure (232) and the second mounting structure (252) are respectively wound on partial edges of the mounting opening to form the access opening together, the first ventilation structure (234) and the second ventilation structure (254) can shield the access opening together, and at least one ventilation opening is formed in each of the first ventilation structure (234) and the second ventilation structure (254).

5. The ventilation device according to claim 4, characterized in that the rotation axis of the first ventilation structure (234) and the rotation axis of the second ventilation structure (254) are located on opposite sides of the access opening, respectively, and the rotation axis of the first ventilation structure (234) is parallel to the rotation axis of the second ventilation structure (254).

6. The ventilation device according to claim 5, characterized in that when the first ventilation structure (234) and the second ventilation structure (254) jointly cover the access opening, one end of the first ventilation structure (234) away from the self rotation axis is in contact with one end of the second ventilation structure (254) away from the self rotation axis.

7. The ventilation device according to claim 4, wherein the first ventilation structure (234) includes a first ventilation panel (2341) and a first wind guiding member (2343), the first ventilation panel (2341) defines a first wind outlet slot for communicating the installation space (310) with the external environment, the first wind guiding members (2343) are installed in the first wind outlet slot at intervals, and one ventilation opening is formed between every two adjacent first wind guiding members (2343).

8. The ventilation apparatus as claimed in claim 7, wherein the first ventilation unit (230) further includes a filter module (2345) and a module mounting assembly (2347), the module mounting assembly (2347) being provided at a side of the first ventilation panel (2341) facing the duct machine body (100), the filter module (2345) being detachably mounted to the module mounting assembly (2347).

9. The ventilation apparatus as claimed in claim 4, wherein the second ventilation structure (254) includes a second ventilation panel (2541) and a second wind guide member (2543), the second ventilation panel (2541) defines a second wind outlet slot for communicating the installation space (310) with the external environment, a plurality of the second wind guide members (2543) are installed at intervals in the second wind outlet slot, and one ventilation opening is formed between every two adjacent second wind guide members (2543).

10. The ventilation device as claimed in claim 9, wherein the second ventilation panel (2541) further defines a return air groove (2541a) for communicating the installation space (310) with the external environment, and the return air groove (2541a) and the second air outlet groove are spaced apart from each other.

11. A heat exchange device installed in a ceiling (300) having an installation space (310) formed therein, the ceiling (300) being provided with an installation opening for communicating the installation space (310) with an external environment, the heat exchange device comprising a duct type main body (100) and the ventilation apparatus (200) according to any one of claims 1 to 10, the duct type main body (100) being installed in the installation space (310).

12. The heat exchange device according to claim 11, wherein the ducted air conditioner main body (100) is installed in the installation space (310) and is arranged corresponding to the installation opening, the ducted air conditioner main body (100) is provided with at least one air opening, the service opening of the ventilation device (200) is communicated with the air opening and the external environment, and the orthographic projection of the ducted air conditioner main body (100) on the ventilation device (200) is located in the range of the service opening.

13. The heat exchange device according to claim 12, wherein the duct body (100) is provided with a front air outlet and a lower air outlet, and an air outlet direction of the front air outlet intersects with an air outlet direction of the lower air outlet.

14. The heat exchange device according to claim 13, wherein the ventilation device (200) comprises a first ventilation unit (230) and a second ventilation unit (250), the first ventilation unit (230) is arranged corresponding to the front air outlet, the second ventilation unit (250) is arranged corresponding to the lower air outlet, and the first ventilation unit (230) and the second ventilation unit (250) jointly form the service opening.

15. The heat exchange device according to claim 14, wherein the duct machine main body (100) is further provided with an air return opening, and the air return opening is arranged corresponding to the second ventilation unit (250).