Ceiling air conditioner fresh air assembly and ceiling air conditioner

Abstract

The utility model provides a courtyard machine fresh air assembly and a courtyard machine. The courtyard machine fresh air assembly comprises a courtyard machine shell which is in an annular groove shape, and an annular heat exchanger is arranged in the courtyard machine shell; the internal space of the heat exchanger forms an air mixing cavity; a bottom plate of the courtyard machine shell is of an interlayer structure, a through hole is formed in a side plate of the courtyard machine shell, and the through hole corresponds to the gap position of the interlayer so that fresh air entering from the through hole can be sent into the air mixing cavity through the interlayer. According to the ceiling air conditioner, the bottom plate of the ceiling air conditioner shell is of the interlayer structure, the fresh air channel for introducing fresh air is formed, the fresh air function of the ceiling air conditioner can be achieved without additionally arranging a fresh air mechanism, accessories are reduced, the air quality of a room is improved, and the unit cost is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of skylight machines, and specifically relates to a skylight machine fresh air component and a skylight machine. Background Art

[0002] When a ceiling unit is cooling, air circulates through the central grille, enters the unit, exchanges heat with the heat exchanger, and is then returned to the room through the outlets surrounding the grille. Because the ceiling unit's return air vent is located in the center of the panel, surrounded by outlets, and the panel serves as a decorative feature, it's difficult for fresh air to flow directly into the return air vent for heat exchange.

[0003] As for the way to introduce fresh air into the skylight unit, it has been reported that a fresh air mechanism is set outside the bottom plate of the skylight unit housing, such as Figure 5 As shown, fresh air is introduced from the outside through a pipe and sent into the ceiling unit to supply fresh air to the room. The setting of the fresh air mechanism makes the ceiling unit including the fresh air mechanism thicker, and the installation location requires a larger space, which increases the installation cost. Utility Model Content

[0004] Therefore, the present application provides a ceiling machine fresh air assembly and a ceiling machine, which can solve the problems in the prior art that the ceiling machine containing the fresh air mechanism is overall thick, requires a larger space for the installation location, and has a high installation cost.

[0005] In order to solve the above problems, the present application provides a fresh air assembly for a rooftop unit, comprising:

[0006] The outer shell of the skylight unit is in the shape of an annular groove, and an annular heat exchanger is arranged therein; the inner space of the heat exchanger constitutes an air mixing chamber;

[0007] The bottom plate of the skylight machine housing is set as a sandwich structure, and the side plates of the skylight machine housing are provided with through holes, which correspond to the gap positions of the sandwich, so that the fresh air entering from the through holes can be sent to the air mixing chamber through the sandwich.

[0008] In some embodiments,

[0009] A fresh air outlet is provided on one side of the interlayer close to the heat exchanger; projected in the vertical direction, the fresh air outlet is located inside the heat exchanger.

[0010] In some embodiments,

[0011] The heat exchanger is in sealed contact with the interlayer so that the fresh air passes through the heat exchanger and enters the room.

[0012] In some embodiments,

[0013] The passage includes a knock-out hole, and a plurality of the knock-out holes are provided and distributed along the circumference of the housing of the skylight machine.

[0014] In some embodiments,

[0015] The knockout hole has a shape of a square, and its height is the same as the height of the gap between the interlayers.

[0016] In some embodiments,

[0017] The fresh air component of the ceiling machine also includes a fresh air duct, one end of which is connected to the outside of the room, and the other end is connected to the knock-out hole.

[0018] In some embodiments,

[0019] The fresh air duct is configured as a square flat tube and is sealed to the knockout hole.

[0020] According to another aspect of the present application, a rooftop unit is provided, comprising the rooftop unit fresh air assembly as described above.

[0021] In some embodiments,

[0022] A gap is provided between the side plate of the housing of the skylight unit and the heat exchanger, forming an air duct for supplying air to the room; the open side of the housing of the skylight unit forms a return air port, and the indoor air enters the skylight unit through the return air port.

[0023] In some embodiments,

[0024] A centrifugal fan is also provided in the housing of the skylight machine. The centrifugal fan is arranged inside the heat exchanger, and the inlet of the centrifugal fan is directly opposite to the return air port.

[0025] The present application provides a fresh air assembly for a roof machine, comprising: a roof machine housing, which is arranged in an annular groove shape, and an annular heat exchanger is arranged therein; the internal space of the heat exchanger constitutes an air mixing chamber; the bottom plate of the roof machine housing is arranged in a sandwich structure, and the side plates of the roof machine housing are provided with through holes, and the through holes correspond to the gap positions of the interlayer, so that the fresh air entering from the through holes can be delivered to the air mixing chamber through the interlayer.

[0026] This application has the following beneficial effects:

[0027] By setting the bottom plate of the ceiling unit shell to a sandwich structure, a fresh air channel for introducing fresh air is formed. Without the need to set up an additional fresh air mechanism, the fresh air function of the ceiling unit can be realized, accessories can be reduced, the air quality of the room can be improved, and the cost of the unit can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. The drawings described below are merely exemplary. Those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0029] Figure 1 This is a schematic diagram of the internal structure of a skylight machine according to an embodiment of the present application;

[0030] Figure 2 A schematic diagram of the three-dimensional structure of the housing of the skylight crane according to an embodiment of the present application;

[0031] Figure 3 This is a schematic diagram of the assembled state of the housing of the skylight machine according to an embodiment of the present application;

[0032] Figure 4 For the embodiment of this application Figure 3 Bottom view of

[0033] Figure 5 This is a schematic diagram of the structure of a traditional ceiling fan with a fresh air mechanism.

[0034] The reference numerals indicate:

[0035] 1. Skylight machine shell;

[0036] 2. Bottom plate; 21. Interlayer;

[0037] 3. Heat exchanger; 4. Centrifugal fan; 5. Return air outlet; 6. Air outlet; 7. Knock-out hole; 8. Fresh air duct. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0039] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0042] See also Figures 1 to 4 As shown, according to an embodiment of the present application, a fresh air assembly for a rooftop unit includes:

[0043] The housing 1 of the skylight machine is in the shape of an annular groove, and an annular heat exchanger 3 is arranged therein; the internal space of the heat exchanger 3 constitutes an air mixing chamber;

[0044] The bottom plate 2 of the skylight machine housing 1 is set as a sandwich 21 structure, and the side plates of the skylight machine housing 1 are provided with through holes, which correspond to the gap positions of the sandwich 21, so that the fresh air entering from the through holes can be delivered to the air mixing chamber through the sandwich 21.

[0045] This application sets the bottom plate 2 of the ceiling machine housing 1 as a sandwich 21 structure to form a fresh air channel for introducing fresh air. Without the need to set up an additional fresh air mechanism, the fresh air function of the ceiling machine can be realized, accessories can be reduced, the air quality of the room can be improved, and the cost of the unit can be reduced.

[0046] The traditional ceiling unit is mainly composed of a casing, a centrifugal fan 4, a motor, an evaporator heat exchanger 3, a water tray and a panel, etc. These components are assembled together to form a complete unit; when the ceiling unit is in the cooling state, the centrifugal fan 4 rotates to suck the indoor air from the return air inlet 5, and after passing through the centrifugal fan 4 components, it is blown to the evaporator heat exchanger 3. After heat exchange, it is blown out from the air outlets 6 around the heat exchanger 3, thus completing a complete refrigeration cycle process.

[0047] Conventional ceiling air conditioners cannot realize the fresh air function. When the air conditioner is running, the air flow in the room circulates, which can easily cause indoor air quality problems. Although some ceiling air conditioners can realize the fresh air function, the structure of injecting fresh air is to set a fresh air mechanism on the outer periphery of the bottom of the shell, such as Figure 5 As shown, the introduced fresh air is injected into the chamber where the centrifugal fan 4 is located, mixed with the return air, and then blown out through the air outlet 6 after heat exchange in the heat exchanger 3. This structure will inevitably increase the space for installing the skylight unit, and the installation cost will also increase accordingly.

[0048] In the structure of the ceiling machine that realizes the fresh air function of the present application, no additional fresh air mechanism is set up. Only the structure of the shell bottom plate 2 of the traditional ceiling machine is improved. The traditional single-plate structure is set as a sandwich 21 structure, and the sandwich 21 is used as a fresh air duct. At the same time, through holes are set on the side panels corresponding to the sandwich 21 to facilitate connection with external pipelines to realize the introduction of fresh air. The present application reduces the traditional fresh air mechanism, and can realize the introduction of fresh air into the room, improve the air quality in the room, and is low in cost.

[0049] The temperature of the fresh air introduced into the ceiling unit is different from the temperature of the indoor air. For example, when the ceiling unit is in cooling mode, the indoor air temperature is lower than the fresh air temperature. At this time, the fresh air is sent into the internal cavity of the heat exchanger 3. According to the structure and operation of the traditional ceiling unit, a centrifugal fan 4 is placed in the cavity, and the corresponding return air will also pass through this cavity. The fresh air is introduced into this cavity and mixed with the return air. Then, they pass through the heat exchanger 3 for heat exchange and are sent out of the ceiling unit to the room. In this way, the high-temperature fresh air gradually cools down and will not affect the normal operation of the ceiling unit.

[0050] In addition, the fresh air sent in will dissipate heat from the motor of the centrifugal fan 4 in the cavity, achieving a good cooling effect.

[0051] In some embodiments,

[0052] A fresh air outlet is provided on one side of the interlayer 21 close to the heat exchanger 3 ; when projected in the vertical direction, the fresh air outlet is located inside the heat exchanger 3 .

[0053] The bottom plate 2 is set as a sandwich 21 structure, which is actually composed of two flat plates. In order to facilitate the introduction of fresh air into the shell, a fresh air outlet is set on the flat plate on the side of the sandwich 21 close to the heat exchanger 3, especially the fresh air outlet is located in the cavity of the heat exchanger 3, so that the fresh air is directly introduced into the cavity and mixed with the return air.

[0054] In some embodiments,

[0055] The heat exchanger 3 and the interlayer 21 are in sealed contact with each other, so that the fresh air passes through the heat exchanger 3 and enters the room.

[0056] In the specific structure, the heat exchanger 3 and the interlayer 21, especially the flat plate on the side of the interlayer 21 close to the heat exchanger 3, are sealed to prevent the introduced fresh air from being directly sent into the room without passing through the heat exchanger 3, causing large fluctuations in indoor temperature and poor physical sensation.

[0057] In some embodiments,

[0058] The through hole includes a knock-out hole 7 , and a plurality of the knock-out holes 7 are provided and distributed along the circumference of the skylight machine housing 1 .

[0059] The through hole adopts a knock-out hole 7, which is knocked out only when a hole needs to be opened here to achieve conduction; a plurality of such knock-out holes 7 are provided, which are distributed along the circumference of the ceiling machine to facilitate the introduction of fresh air from multiple directions; more preferably, a plurality of knock-out holes 7 can be knocked out at the same time to increase the air intake.

[0060] In some embodiments,

[0061] The knockout hole 7 has a square shape, and its height is the same as the gap height of the interlayer 21 .

[0062] Since the fresh air duct in the ceiling machine is a sandwich 21 structure of the bottom plate 2, and the sandwich 21 is arranged with two flat plates at intervals, the fresh air duct is flat; at this time, the knock-out hole 7 can be set to a structure that matches the fresh air duct, including a square or flat structure, and the height is consistent with the height of the gap between the sandwich 21, so as to ensure the air intake. If the knock-out hole 7 is too large, it is easy to leak air, and if it is too small, it will affect the air intake.

[0063] In some embodiments,

[0064] The fresh air assembly of the ceiling machine also includes a fresh air pipe 8, one end of which is connected to the outside of the room, and the other end is connected to the knock-out hole 7.

[0065] The fresh air component only needs to be equipped with a fresh air duct 8 to connect the knock-out hole 7 and the outdoors; the fresh air duct 8 can be equipped with fresh air component structures such as control valves and filters for adjusting the fresh air. Since there is no need to set the above-mentioned fresh air components on the ceiling machine, the structure of the ceiling machine is relatively simplified.

[0066] In some embodiments,

[0067] The fresh air duct 8 is configured as a square flat tube and is sealed to the knockout hole 7 .

[0068] Correspondingly, the fresh air duct 8 may also be a square flat tube, which has high air supply efficiency and saves resources.

[0069] According to another aspect of the present application, a rooftop unit is provided, comprising the rooftop unit fresh air assembly as described above.

[0070] The ceiling unit of this application does not require an additional fresh air mechanism, which saves costs, simplifies installation, and can ensure the introduction of fresh air and indoor air quality.

[0071] In some embodiments,

[0072] A gap is provided between the side panel of the roof machine housing 1 and the heat exchanger 3 , forming an air duct for supplying air to the room; the open side of the roof machine housing 1 forms a return air port 5 , and the indoor air enters the roof machine through the return air port 5 .

[0073] The gap between the side panels of the overhead unit's housing 1 and the heat exchanger 3 serves as the traditional overhead unit's outlet duct. The housing's open side serves as the return air vent 5. Indoor air enters the overhead unit through the return air vent 5, passes through the heat exchanger 3, and is then returned to the room through the outlet duct. The incoming fresh air and return air are then returned to the room through the heat exchanger 3.

[0074] In some embodiments,

[0075] A centrifugal fan 4 is further provided in the housing 1 of the skylight machine. The centrifugal fan 4 is arranged inside the heat exchanger 3 , and the inlet of the centrifugal fan is directly opposite to the return air port 5 .

[0076] A centrifugal fan 4 is provided in the cavity inside the heat exchanger 3, and its inlet is opposite to the return air outlet 5. Through the rotation of the centrifugal fan 4, indoor air is sucked in from the return air outlet 5, mixed with the incoming fresh air, and then radially flows out of the centrifugal fan 4 to exchange heat with the surrounding heat exchanger 3, and then is sent back to the room.

[0077] The present application is a ceiling fan with a brand-new structure, in which the main components such as centrifugal fan blades, motor and evaporator are arranged in the shell. The double-layer bottom plate 2 structure of the shell constitutes a fresh air channel, and the side plate is provided with a knock-out hole 7.

[0078] When fresh air needs to be introduced, the knockout hole 7 is knocked down, and the fresh air pipe 8 is communicated with the fresh air channel through the knockout hole 7 to form a complete fresh air inlet duct. Knockout holes 7 can be set around the shell to increase the air intake.

[0079] During normal cooling, the centrifugal fan blades rotate to draw indoor air from the return air inlet 5, pass through the fan component, and then blow it to the evaporator component. After heat exchange in the evaporator component, it is blown out from the four air outlets 6 on the periphery, thus completing a complete cooling process.

[0080] When fresh air needs to be introduced for indoor ventilation, it is only necessary to knock out the knockout hole 7 on the side panel and connect the fresh air duct 8 to complete the fresh air delivery. At this time, the fresh air flows from the outside through the fresh air duct 8 through the air duct formed by the interlayer 21, enters the interior of the shell, mixes with the air inside the shell, and is then blown into the evaporator by the fan for heat exchange. After heat exchange, it is blown out from the air outlet 6 in the four directions of the ceiling machine, completing a complete fresh air introduction and heat exchange process.

[0081] Since the motor generates a large amount of heat during operation, fresh air is introduced into the unit and blows directly onto the motor. The airflow will carry away some of the heat, thereby indirectly achieving the effect of heat dissipation and cooling the motor. It is easy for those skilled in the art to understand that the above-mentioned embodiments can be freely combined and superimposed without conflict.

[0082] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above description is merely a preferred embodiment of the present application. It should be noted that those skilled in the art can make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A fresh air component for a roof unit, characterized in that: include: The outer shell (1) of the skylight machine is designed to be annular groove-shaped, and an annular heat exchanger (3) is arranged therein; the inner space of the heat exchanger (3) constitutes an air mixing chamber; The bottom plate (2) of the skylight machine housing (1) is configured as a sandwich (21) structure, and the side plates of the skylight machine housing (1) are provided with through holes, the through holes corresponding to the gap positions of the sandwich (21), so that the fresh air entering through the through holes is delivered to the air mixing chamber through the sandwich (21).

2. The fresh air assembly for a rooftop unit according to claim 1, characterized in that: A fresh air outlet is provided on a side of the interlayer (21) close to the heat exchanger (3); projected in the vertical direction, the fresh air outlet is located inside the heat exchanger (3).

3. The fresh air assembly for a rooftop unit according to claim 2, characterized in that: The heat exchanger (3) and the interlayer (21) are in sealed contact, so that the fresh air passes through the heat exchanger (3) and enters the room.

4. The fresh air assembly for a rooftop hood according to any one of claims 1 to 3, characterized in that: The through hole comprises a knock-out hole (7), and a plurality of the knock-out holes (7) are provided and distributed along the circumference of the skylight machine housing (1).

5. The fresh air assembly for a rooftop unit according to claim 4, characterized in that: The knockout hole (7) has a square shape, and its height is the same as the gap height of the interlayer (21).

6. The fresh air assembly for a rooftop unit according to claim 5, characterized in that: The fresh air component of the ceiling machine also includes a fresh air pipe (8), one end of the fresh air pipe (8) is connected to the outside of the room, and the other end is connected to the knock-out hole (7).

7. The fresh air assembly for a rooftop unit according to claim 6, characterized in that: The fresh air duct (8) is configured as a square flat tube and is sealedly connected to the knockout hole (7).

8. A roof crane, characterized in that: It comprises the fresh air assembly of the ceiling machine as described in any one of claims 1-7.

9. The overhead crane according to claim 8, characterized in that: A gap is provided between the side panels of the roof machine housing (1) and the heat exchanger (3), forming an air duct for supplying air to the room; the open side of the roof machine housing (1) forms a return air port (5), and indoor air enters the roof machine through the return air port (5).

10. The overhead crane according to claim 9, characterized in that: A centrifugal fan (4) is also provided in the housing (1) of the skylight machine. The centrifugal fan (4) is provided inside the heat exchanger (3), and its inlet is directly opposite to the return air port (5).

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