CN219120659U - Air conditioning box and air conditioning system - Google Patents
Air conditioning box and air conditioning system Download PDFInfo
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- CN219120659U CN219120659U CN202222529860.7U CN202222529860U CN219120659U CN 219120659 U CN219120659 U CN 219120659U CN 202222529860 U CN202222529860 U CN 202222529860U CN 219120659 U CN219120659 U CN 219120659U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 77
- 238000001914 filtration Methods 0.000 claims abstract description 31
- 230000003068 static effect Effects 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 238000004659 sterilization and disinfection Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model provides an air conditioning box and an air conditioning system. The air conditioning box comprises a box body, a centrifugal fan, an adjusting unit and a filtering unit. The wall of the box body is of a multi-layer sandwich structure so as to reduce radiation noise. And the box body is internally provided with a fresh air channel, an air supply channel and an air return channel which are sequentially stacked, so that the space of the box body is utilized to the maximum extent, and the miniature design is facilitated. Along the air flow direction, the inner cavity size of each channel gradually increases to avoid forming vortex and reduce the resistance and noise in the box body. The adjusting unit comprises a static pressure detector and a variable air volume valve; under the cooperation of the static pressure detector, the variable air volume valve and the centrifugal fan, the air pressure and the air volume at the tail end of air supply can be kept within a set range, and different air supply modes of the air conditioner box can be switched to meet various air supply demands of users. Meanwhile, the filtering unit in the air conditioning box can also play a role in fresh air filtering so as to improve the indoor air quality.
Description
Technical Field
The utility model relates to the technical field of air conditioning, in particular to an air conditioning box and an air conditioning system.
Background
Along with the continuous improvement of living standard, people begin to pay attention to the health and comfort of indoor air conditioning environment. The air conditioning box is used as a good air treatment device, can realize multiple functions of filtering, refrigerating, heating, dehumidifying and the like, provides fresh air for the indoor and realizes the adjustment of cold and warm air supply. However, in order to ensure the realization of multiple functions, the existing air conditioning box is generally large in size, can only be applied to large public buildings, is large in noise, and cannot meet the requirements of household use.
Therefore, a new air conditioning box is needed, which not only can meet the requirements of temperature regulation, sterilization and filtration, fresh air and other functions, but also can meet the requirements of small size, low noise and the like for household use.
Disclosure of Invention
The utility model aims to provide an air conditioning box and an air conditioning system, which are used for solving at least one problem of reducing the size of the air conditioning box to meet the household needs, reducing noise and improving the performance of the air conditioning box.
In order to solve the above technical problems, the present utility model provides an air conditioning box, including: the centrifugal fan comprises a box body, a centrifugal fan, an adjusting unit and a filtering unit;
the wall of the box body is of a multi-layer sandwich structure, and a fresh air channel, an air supply channel and an air return channel which are sequentially stacked are arranged in the box body; the sizes of the inner cavities of the fresh air channel, the air supply channel and the return air channel gradually increase along the airflow flowing direction;
the centrifugal fan is arranged in the air supply channel, and the air inlet end of the centrifugal fan is communicated with the air return channel;
the adjusting unit comprises a static pressure detector and a variable air valve; the static pressure detector is arranged in the air supply channel to detect air supply pressure; at least one variable air volume valve is arranged in the fresh air channel and the return air channel respectively so as to adjust air volume and air pressure by matching with the centrifugal fan according to the air supply pressure;
the filtering unit is arranged between the fresh air channel and the return air channel, so as to filter the fresh air in the fresh air channel, and the filtered fresh air is transmitted into the return air channel, so that the fresh air enters the air supply channel through the air inlet end of the centrifugal fan.
Optionally, in the air conditioning case, the air flow direction in the fresh air channel and the air return channel is the same, and is opposite to the air flow direction in the air supply channel.
Optionally, in the air conditioning case, a wall of the case body is a double-layer sandwich structure, and the two layers of sandwich structures are sequentially from outside to inside: steel sheet, inhale the sound cotton layer, inhale sound non-woven fabrics layer, perforated plate, cavity and micropore board.
Optionally, in the air conditioning case, the case body is further provided with a fresh air port, an air supply port and an air return port; the novel air inlet, the air supply outlet and the air return inlet are arranged on the same side face of the box body and are respectively communicated with the novel air channel, the air supply channel and the air return channel.
Optionally, in the air conditioning case, the case body is prismatic or cylindrical; the fresh air channel, the air supply channel and the return air channel are arranged in a stacked manner along the radial direction of the box body and extend along the axial direction of the box body; wherein, the fresh air inlet, the air supply outlet and the return air inlet are all arranged on the top surface of the box body.
Optionally, in the air conditioning case, the filtering unit is disposed at one end of the air supply channel away from the air supply port, and is in unidirectional communication with the fresh air channel and the return air channel;
and the filtering unit comprises a plurality of filters, and the filters are linearly arranged, so that the fresh air sequentially passes through the filters and enters the return air channel.
Optionally, in the air conditioning case, a flexible volute plate is further disposed on the periphery of the centrifugal fan, so that air flowing out of the centrifugal fan flows through the flexible volute plate.
Optionally, in the air conditioning case, the case body is further provided with an access door; the access door is close to the filtering unit, and a self-locking door handle is arranged on the access door.
Optionally, in the air conditioning case, an air supply mode of the air conditioning case at least includes a fresh air mode, a return air mode and a mixed air mode; wherein,,
in the fresh air mode, the variable air volume valve in the fresh air channel is opened, the variable air volume valve in the return air channel is closed, and the air flows out of the air supply channel are fresh air;
in the return air mode, the variable air volume valve in the fresh air channel is closed, the variable air volume valve in the return air channel is opened, and the air flows out of the air supply channel are return air;
in the mixed air mode, the air flow valves in the fresh air channel and the return air channel are opened, and the air flow flowing out of the air supply channel is mixed air after the fresh air and the return air are mixed.
Based on the same conception, the utility model also provides an air conditioning system which comprises the air conditioning box.
In summary, the present utility model provides an air conditioning unit and an air conditioning system. Wherein, the air conditioning case includes: the centrifugal fan comprises a box body, a centrifugal fan, an adjusting unit and a filtering unit. The wall of the box body is of a multi-layer sandwich structure so as to effectively reduce radiation noise in the box body. And the fresh air channel, the air supply channel and the return air channel which are sequentially stacked are arranged in the box body, so that the space in the box body is utilized to the maximum extent, and the reduction of the size of the box body is facilitated. And along the air current flow direction, the new trend passageway, the air supply passageway and the inner chamber size of return air passageway is progressive increase, accords with hydrodynamic design, avoids forming the vortex to reduce the inside resistance of box and air current noise. The adjusting unit comprises a static pressure detector and a variable air volume valve; the static pressure detector is arranged in the air supply channel to detect air supply pressure; at least one variable air volume valve is arranged in the fresh air channel and the return air channel respectively, so that the air volume and the air pressure are adjusted by matching with the centrifugal fan according to the air supply pressure. Under the cooperation of the static pressure detector, the variable air volume valve and the centrifugal fan, the air pressure and the air volume at the air supply tail end of the system can be kept within a set range, and the air supply mode of the air conditioning box can be switched to meet different air supply demands of users. Meanwhile, the filtering unit in the air conditioning box can also play a role in fresh air filtering so as to improve indoor air quality.
Therefore, the air conditioning box and the air conditioning system provided by the utility model not only can reduce the size of the air conditioning box to meet the household needs, but also can reduce noise and improve the performance of the air conditioning box.
Drawings
Fig. 1 is a cross-sectional view of an air conditioning case in an embodiment of the present utility model.
Fig. 2 is a schematic view of the structure of the tank wall in the embodiment of the present utility model.
Fig. 3 is a schematic view of the structure of the flexible volute plate in an embodiment of the utility model.
Fig. 4 is a schematic view of the structure of an access door and a self-locking door handle in an embodiment of the present utility model.
Wherein, the reference numerals are as follows:
10-a box body; 100-box walls; 1001-steel plate; 1002-a sound absorbing cotton layer; 1003-a sound-absorbing non-woven fabric layer; 1004-a perforated plate; 1005-cavity; 1006—microwell plates; 101-a fresh air channel; 102-an air supply channel; 103-a return air channel; 104-an access door; 105-self locking door handle;
20-a centrifugal fan;
30-a regulating unit; 301-a static pressure detector; 302-a variable air volume valve;
40-a filtration unit; 401-primary filter; 402-advanced filter;
50-flexible volute plate; 60-heat exchanger.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific embodiments thereof in order to make the objects, advantages and features of the utility model more apparent. It should be noted that the drawings are in a very simplified form and are not drawn to scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model. Furthermore, the structures shown in the drawings are often part of actual structures. In particular, the drawings are shown with different emphasis instead being placed upon illustrating the various embodiments. It should be further understood that the terms "first," "second," "third," and the like in this specification are used merely for distinguishing between various components, elements, steps, etc. in the specification and not for indicating a logical or sequential relationship between the various components, elements, steps, etc., unless otherwise indicated.
Referring to fig. 1, the present embodiment provides an air conditioning unit, including: the centrifugal fan comprises a box body 10, a centrifugal fan 20, an adjusting unit 30 and a filtering unit 40; the wall of the box 10 is of a multi-layer sandwich structure, and a fresh air channel 101, an air supply channel 102 and an air return channel 103 are sequentially stacked in the box 10; the sizes of the inner cavities of the fresh air channel 101, the air supply channel 102 and the return air channel 103 gradually increase along the airflow flowing direction; the centrifugal fan 20 is arranged in the air supply channel 102, and the air inlet end of the centrifugal fan 20 is communicated with the air return channel 103; the regulating unit 30 comprises a static pressure detector 301 and a variable air volume valve 302; the static pressure detector 301 is disposed in the air supply channel 102 to detect air supply pressure; at least one variable air volume valve 302 is respectively arranged in the fresh air channel 101 and the return air channel 103 so as to adjust air volume and air pressure in cooperation with the centrifugal fan 20 according to the air supply pressure; the filtering unit 40 is disposed between the fresh air channel 101 and the return air channel 103, so as to filter the fresh air in the fresh air channel 101, and transmit the filtered fresh air into the return air channel 103, so as to enter the air supply channel 102 through the air inlet end of the centrifugal fan 20.
The air conditioning box provided by the embodiment not only can reduce the size of the air conditioning box to meet the household needs, but also can reduce noise and improve the performance of the air conditioning box. The air conditioning unit according to the present embodiment will be specifically described with reference to fig. 1 to 4.
Referring to fig. 1 and 2, the air conditioning case includes: the centrifugal fan comprises a box body 10, a centrifugal fan 20, an adjusting unit 30 and a filtering unit 40. The housing 10 has an inner cavity for accommodating at least the centrifugal fan 20, the adjusting unit 30 and the filtering unit 40. Further, the wall 100 of the case 10 is a multi-layered sandwich structure. In other words, the tank wall 100 is constructed of a multi-layer structure. Optionally, as shown in fig. 2, the wall 100 is a double-layer sandwich structure, and the steps are as follows: steel plate 1001, sound-absorbing cotton layer 1002, sound-absorbing nonwoven layer 1003, perforated plate 1004, cavity 1005, and microporous plate 1006. Wherein the steel plate 1001 is the outermost layer structure of the wall 100 to ensure the rigidity of the air conditioner. The sound-absorbing cotton layer 1002 and the sound-absorbing non-woven fabric layer 1003 are sequentially laid on the surface of the steel plate 1001, so as to achieve the purpose of reducing sound absorption and noise reduction in the box. The perforated plate 1005 and the micro-porous plate 1006 are provided with a plurality of through holes, which are also used for reducing noise in the box. Wherein, a cavity 1005 for sound reflection is provided between the perforated plate 1005 and the micro-porous plate 1006, so as to reduce the radiation noise of the case 10. Through the verification of the applicant, under the action of the double-layer sandwich structure wall, the radiation noise of the air conditioner box can be lower than 35dB (A), so that a better anti-noise effect is achieved, and the requirements of household use are met. It should be noted that, the specific structure of the wall 100 is not limited in this embodiment, and the wall may be a double-layer sandwich structure, a three-layer sandwich structure, a four-layer sandwich structure, or the like as shown in fig. 2, and the stacking sequence of the layers is not limited in this embodiment.
In order to reduce the size of the box body 10 to meet the domestic use requirement, the devices in the air conditioning box provided in this embodiment are all reasonably designed to achieve compact distribution. Specifically, the box 10 is provided with a fresh air channel 101, an air supply channel 102 and an air return channel 103 which are sequentially stacked; along the airflow flowing direction, the sizes of the inner cavities of the fresh air channel 101, the air supply channel 102 and the return air channel 103 gradually increase. As shown in fig. 1, the air flow directions in the fresh air channel 101 and the return air channel 103 all flow along the y-negative half axis direction, so that the inner diameters of the fresh air channel 101 and the return air channel 103 gradually increase along with the air flow direction, so that the air pressure of the air entering the box 10 gradually decreases, and the corresponding wind noise also gradually decreases. At the same time, the formation of eddy currents can be avoided to reduce the internal resistance of the tank 10. The airflow in the air supply channel 102 flows along the y positive half axis direction, so that the inner diameter of the air supply channel 102 gradually increases along the y positive half axis direction, and the air pressure is reduced through the large inner diameter, so that vortex formation is avoided, and wind noise and internal resistance are reduced. It can be appreciated that, along the y negative half axis direction, the inner diameters of the fresh air channel 101 and the return air channel 103 are gradually increased, while the inner diameter of the air supply channel 102 is gradually reduced, so as to be matched with the gap between the fresh air channel 101 and the return air channel 103, thereby realizing the close fitting of the fresh air channel 101, the air supply channel 102 and the return air channel 103, reasonably utilizing the space in the box 10, and being beneficial to the miniaturization design of the box 10. Based on this, through reasonable layout fresh air channel 101, air supply channel 102 and return air channel 103, will the size of box 10 can reduce to the floor tile size, has solved the space problem of traditional large-scale air conditioning case at the home installation.
Further, the box 10 further has a fresh air port a, an air supply port b, and an air return port c, and are respectively communicated with the fresh air channel 101, the air supply channel 102, and the air return channel 103. The fresh air port a is connected with outdoor air, and the air supply port b and the air return port c are connected with indoor air. The fresh air port a and the return air port c are used for respectively receiving outdoor air and indoor air in the air conditioning box, and the air supply port b is used for supplying air to the indoor. In order to meet the reasonable layout, the fresh air port a, the air supply port b and the air return port c are arranged on the same side face of the box body 10.
Further, the case 10 is prismatic or cylindrical; the fresh air channel 101, the air supply channel 102 and the return air channel 103 are arranged in a stacked manner along the radial direction of the box 10, and extend along the axial direction of the box 10. As shown in fig. 1, the box 10 has a rectangular parallelepiped shape, and the fresh air duct 101, the air supply duct 102, and the return air duct 103 are stacked along a length x direction of the box 10 and extend along a height y direction of the box 10. In order to match with interior decoration, the fresh air port a, the air supply port b and the air return port c are preferably arranged on the top surface of the box 10 and are lower than the height of the indoor suspended ceiling. The present embodiment is not limited to the specific shape of the case 10.
Referring to fig. 1 and 3, the centrifugal fan 20 is configured to boost the air flow to increase the wind pressure and the wind speed of the air flow in the air supply channel 102, so as to meet the needs of the wind pressure and the wind quantity at the air supply end. Further, the centrifugal fan 20 is disposed in the air supply channel 102, and an air inlet end of the centrifugal fan 20 is communicated with the air return channel 103. As shown in fig. 3, a flexible volute plate 50 is further disposed on the outer circumference of the centrifugal fan 20, so that the air flowing out of the centrifugal fan 20 flows out through the flexible volute plate 50. The flexible volute plate 50 is streamline, accords with the flowing direction of the airflow, can guide the airflow to flow out, avoids generating vortex and improves the air supply efficiency. In addition, the flexible material can also play a role in sound absorption, and is helpful for further reducing noise.
With continued reference to fig. 1, the air conditioning unit is suitable for home use, and needs to meet different house types, so different house types and areas need to be correspondingly designed with different air output and air output. Accordingly, in order to meet the air volume requirement and the air pressure requirement of the air supply terminal required by each room, the air conditioning box provided in this embodiment is provided with an adjusting unit 30 to adjust the air volume and the air pressure. Further, the regulating unit 30 includes a static pressure detector 301 and a variable air volume valve 302. The static pressure detector 301 is disposed in the air supply passage 102 to detect the air supply pressure. Preferably, the static pressure detector 301 is disposed near the air supply port b. At least one variable air volume valve 302 is respectively arranged in the fresh air channel 101 and the return air channel 103, so as to adjust air volume and air pressure in cooperation with the centrifugal fan 20 according to the air supply pressure. For example, when the air supply amount of the air supply duct system is insufficient, the end resistance is reduced due to the decrease of the air volume, and the static pressure detector 301 senses that the pressure value is lower than the set value, and transmits a signal to the control unit of the system. The control unit of the system controls and increases the rotational speed of the centrifugal fan 20 after conversion, and can also adjust the variable air volume valve 302 in the fresh air channel 101 and the return air channel 103 to increase the input of air volume until the air supply pressure reaches a set value. When the air supply amount of the air supply pipeline system is excessive, the static pressure detector 301 senses that the pressure value is greater than the set value, and accordingly reduces the rotation speed of the centrifugal fan 20 and the variable air volume valve 302 to reduce the air volume input, so as to realize stable air pressure and air volume at the tail end of air supply. Based on this, under the action of the regulating unit 30, on the one hand, the air conditioning cabinet can flexibly adapt to various residential types; on the other hand, the air conditioner box can realize indoor air supply quantity adjustment according to needs, and when part of rooms do not have tail end air supply devices to run, the air supply quantity can be reduced, the energy consumption of the air conditioner box is reduced, and the energy-saving effect is realized.
Further, the filtering unit 40 is located between the fresh air channel 101 and the return air channel 103, but not located in the air supply channel 102, and may be located at an end of the air supply channel 102 away from the air supply port b. The filtering unit is unidirectionally communicated with the fresh air channel 101 and the return air channel 103, so that fresh air can unidirectionally flow into the return air channel 103, the fresh air is filtered, and the indoor air quality is ensured. The filtered fresh air is transmitted into the return air channel 103 to enter the supply air channel 102 through the air inlet end of the centrifugal fan 20. The filtering unit 40 includes a plurality of filters, and the plurality of filters are arranged linearly, so that the fresh air is filtered by the plurality of filters in sequence. For example, two filters shown in fig. 1, one of which is primary filtering 401 and the other is advanced filter 402, so as to realize gradual filtering of fresh air and ensure the health and quality of indoor air.
Based on this, the switching of the plurality of air blowing modes can be realized according to the connection mode of the respective passages and the variable air volume valve 302. The air supply mode of the air conditioning box comprises, but is not limited to, a fresh air mode, a return air mode and a mixed air mode. The airflow direction shown in fig. 1, wherein the dotted arrow is the flow direction of fresh air, the solid arrow is the flow direction of return air, and the virtual-solid arrow is the flow direction of mixed air. In the fresh air mode, the variable air volume valve 302 in the fresh air channel 101 is opened, the variable air volume valve 302 in the return air channel 103 is closed, and then only fresh air enters the return air channel 103 after passing through the filter unit 40, and is sucked into the air supply channel 102 by the centrifugal fan 20, and the air flow flowing out of the air supply channel 102 is fresh air. In the air return mode, the variable air volume valve 302 in the fresh air channel 101 is closed, the variable air volume valve 302 in the air return channel 103 is opened, no fresh air flows into the box 10, only the return air flows into the air return channel 103, and then is sucked into the air supply channel 102 by the centrifugal fan 20, and the air flow flowing out of the air supply channel 102 is the return air. In the mixed air mode, the variable air volume valves 302 in the fresh air channel 101 and the return air channel 103 are opened, after passing through the filtering unit 40, the fresh air enters the return air channel 103 and is mixed with the return air, and then is sucked into the air supply channel 102 by the centrifugal fan 20, and the air flow flowing out of the air supply channel 102 is the mixed air after the fresh air and the return air are mixed. Therefore, the user can freely switch the air blowing mode as needed. For example, in the spring and autumn transition season, the return air can be closed, so that the fresh air supply is realized; when outdoor air is polluted and has peculiar smell, the fresh air can be closed, and the return air circulation is realized. Further, when the resistance in the fresh air channel 101 and the return air channel 103 changes, the variable air volume valve 302 can also automatically adjust the air volume, so as to ensure stable air volume.
Further, the air conditioning case also includes a heat exchanger 60. The heat exchanger 60 is disposed in the return air channel to recover heat of the return air and save heat energy.
Referring to fig. 1 and 4, for cleaning and maintenance, the filter unit 40 is disposed near the bottom end of the case 10, and the case 10 is provided with an access door 104 at a corresponding position of the filter unit 40 to facilitate opening and cleaning of the filter unit 40. Further, a hidden self-locking door handle is arranged on the access door 104. The torsion spring is arranged in the self-locking door handle, so that the self-locking door handle can be automatically reset, and is convenient to maintain and replace.
Based on the same conception, the embodiment also provides an air conditioning system comprising the air conditioning box.
In summary, the present embodiment provides an air conditioning unit and an air conditioning system. Wherein, the air conditioning case includes: the centrifugal fan comprises a box body 10, a centrifugal fan 20, an adjusting unit 30 and a filtering unit 40. The wall 100 of the case 10 has a multi-layered sandwich structure, so as to effectively reduce the radiation noise in the case 10. And the box 10 is internally provided with a fresh air channel 101, an air supply channel 102 and an air return channel 103 which are sequentially stacked, so that the space in the box 10 is utilized to the maximum extent, and the size of the box 10 is reduced. In addition, along the airflow flowing direction, the inner cavity sizes of the fresh air channel 101, the air supply channel 102 and the air return channel 103 gradually increase, so that the fluid mechanics design is met, vortex formation is avoided, and the internal resistance of the box 10 and airflow noise are reduced. And, the said regulating unit 30 includes the static pressure detector 301 and variable air volume valve 302; the static pressure detector 301 is disposed in the air supply channel 102 to detect air supply pressure; at least one variable air volume valve 302 is respectively arranged in the fresh air channel 101 and the return air channel 103, so as to adjust air volume and air pressure in cooperation with the centrifugal fan 20 according to the air supply pressure. That is, under the cooperation of the static pressure detector 301, the variable air volume valve 302, and the centrifugal fan 20, not only the air pressure and the air volume at the air supply end of the system can be kept within a set range, but also the air supply mode of the air conditioning box can be switched, so as to meet different air supply requirements of users. Meanwhile, the filtering unit 40 in the air conditioning case may also function as fresh air filtering to improve indoor air quality. Therefore, the air conditioning box and the air conditioning system provided by the embodiment not only can reduce the size of the air conditioning box to meet the household needs, but also can reduce noise and improve the performance of the air conditioning box.
It should also be appreciated that while the present utility model has been disclosed in the context of a preferred embodiment, the above embodiments are not intended to limit the utility model. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art without departing from the scope of the technology, or the technology can be modified to be equivalent. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims (10)
1. An air conditioning case, comprising: the centrifugal fan comprises a box body, a centrifugal fan, an adjusting unit and a filtering unit;
the wall of the box body is of a multi-layer sandwich structure, and a fresh air channel, an air supply channel and an air return channel which are sequentially stacked are arranged in the box body; the sizes of the inner cavities of the fresh air channel, the air supply channel and the return air channel gradually increase along the airflow flowing direction;
the centrifugal fan is arranged in the air supply channel, and the air inlet end of the centrifugal fan is communicated with the air return channel;
the adjusting unit comprises a static pressure detector and a variable air valve; the static pressure detector is arranged in the air supply channel to detect air supply pressure; at least one variable air volume valve is arranged in the fresh air channel and the return air channel respectively so as to adjust air volume and air pressure by matching with the centrifugal fan according to the air supply pressure;
the filtering unit is arranged between the fresh air channel and the return air channel, so as to filter the fresh air in the fresh air channel, and the filtered fresh air is transmitted into the return air channel, so that the fresh air enters the air supply channel through the air inlet end of the centrifugal fan.
2. An air conditioning case according to claim 1 wherein the direction of air flow in the fresh air duct and the return air duct is the same and opposite to the direction of air flow in the supply air duct.
3. The air conditioner cabinet according to claim 1, wherein the cabinet wall is of a double-layer sandwich structure, and the steps of: steel sheet, inhale the sound cotton layer, inhale sound non-woven fabrics layer, perforated plate, cavity and micropore board.
4. The air conditioning case according to claim 1, wherein the case further has a fresh air inlet, an air supply inlet, and an air return inlet; the novel air inlet, the air supply outlet and the air return inlet are arranged on the same side face of the box body and are respectively communicated with the novel air channel, the air supply channel and the air return channel.
5. An air conditioning case according to claim 4, wherein the case is prismatic or cylindrical; the fresh air channel, the air supply channel and the return air channel are arranged in a stacked manner along the radial direction of the box body and extend along the axial direction of the box body; wherein, the fresh air inlet, the air supply outlet and the return air inlet are all arranged on the top surface of the box body.
6. The air conditioning case according to claim 4, wherein the filter unit is disposed at an end of the air supply channel away from the air supply port, and is in unidirectional communication with the fresh air channel and the return air channel;
and the filtering unit comprises a plurality of filters, and the filters are linearly arranged, so that the fresh air sequentially passes through the filters and enters the return air channel.
7. An air conditioning case according to claim 1, wherein the outer periphery of the centrifugal fan is further provided with a flexible volute plate member so that the air flowing out of the centrifugal fan flows out through the flexible volute plate member.
8. An air conditioning case according to claim 1, wherein the case is further provided with an access door; the access door is close to the filtering unit, and a self-locking door handle is arranged on the access door.
9. The air conditioning case according to claim 1, wherein the air supply mode of the air conditioning case includes at least a fresh air mode, a return air mode, and a mixed air mode; wherein,,
in the fresh air mode, the variable air volume valve in the fresh air channel is opened, the variable air volume valve in the return air channel is closed, and the air flows out of the air supply channel are fresh air;
in the return air mode, the variable air volume valve in the fresh air channel is closed, the variable air volume valve in the return air channel is opened, and the air flows out of the air supply channel are return air;
in the mixed air mode, the air flow valves in the fresh air channel and the return air channel are opened, and the air flow flowing out of the air supply channel is mixed air after the fresh air and the return air are mixed.
10. An air conditioning system comprising an air conditioning unit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202222529860.7U CN219120659U (en) | 2022-09-23 | 2022-09-23 | Air conditioning box and air conditioning system |
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