CN217082705U - Air duct type air conditioner indoor unit and air conditioner - Google Patents

Abstract

The utility model provides an air pipe type air-conditioning indoor unit, which comprises a shell, a heat exchanger, a water receiving part and a fan, wherein the shell is provided with an air inlet, an air outlet and an air return inlet; the shell is internally provided with a wind mixing area between the heat exchanger and the fan, and the air return port is positioned at the downstream of the heat exchanger and the upstream of the fan and communicated with the wind mixing area along the flow direction of wind in the shell. The utility model discloses on the basis of guaranteeing to adopt lower evaporating temperature to carry out abundant refrigeration, dehumidification to the room air, promote the air-out temperature, improve user's comfort level and experience.

Description

Air duct type air conditioner indoor unit and air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioning equipment technique and specifically relates to a structural improvement of machine in the tuber pipe formula air conditioning and have the air conditioner of this tuber pipe formula air conditioning machine.

Background

The indoor unit of the current commercial air conditioner mainly comprises a four-side air outlet type air duct machine and an air duct machine, wherein the air duct machine occupies a leading position in the domestic market. The air duct machine is a new machine type developed according to market diversity requirements and overall decoration space changes, is suitable for occasions with small installation and maintenance width, and is particularly suitable for small-sized families.

The air duct type air conditioner usually adopts the refrigeration of direct evaporator, and its indoor set is under low-middle speed refrigeration or dehumidification mode, and the evaporating temperature setting of system is lower, can arouse that the air-out temperature is crossed lowly, influences user's travelling comfort and experiences, if will ensure that the air-out temperature will not cross lowly, will improve the evaporating temperature of system, nevertheless can lead to system's refrigerating capacity, dehumidification ability all to reduce like this, and refrigeration, dehumidification effect variation.

Based on this, how to improve prior art wind tubular air conditioning indoor set, make the air-out temperature be unlikely to low excessively on the basis that does not influence refrigeration and dehumidification effect, be the utility model discloses the technical problem who awaits the solution is urgent.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned technical problem that exists among the prior art, the utility model provides an indoor set of tuber pipe formula air conditioning and air conditioner promotes the air-out temperature on the basis of guaranteeing to carry out abundant refrigeration, dehumidification to the room air, improves user experience.

In some embodiments of the present application, an air duct type air conditioning indoor unit includes:

the air conditioner comprises a shell, wherein an air inlet, an air outlet and an air return inlet are formed in the shell;

the heat exchanger is obliquely arranged in the shell and is positioned on the side of the air inlet;

the water receiving part is arranged in the shell and is positioned below the heat exchanger;

the fan is arranged in the shell and is positioned on the side of the air outlet;

and a wind mixing area between the heat exchanger and the fan is formed in the shell, and the wind return inlet is positioned at the downstream of the heat exchanger and the upstream of the fan and communicated with the wind mixing area along the flow direction of wind in the shell.

This application heat exchanger is located air intake place side, the fan is located air outlet place side, form between heat exchanger and fan and mix the wind district, set up the return air inlet with mixing wind district intercommunication on the casing, during refrigeration or dehumidification, the fan operation, indoor wind that gets into indoor set by the air intake is earlier through the heat exchanger heat transfer, lower evaporating temperature has, and simultaneously, indoor return air or outdoor new trend get into indoor set through the return air inlet, this part wind does not pass through the heat exchanger, the temperature is higher, mix with the low temperature wind that gets into and pass through after the heat exchanger heat transfer by the air intake, then discharge by the air outlet, can effectively promote the air-out temperature, then this application is guaranteeing to adopt lower evaporating temperature to carry out abundant refrigeration to indoor air, on the basis of dehumidification, promote the air-out temperature, improve user comfort and experience.

In some embodiments of the present application, an air volume adjusting valve is disposed on the air return opening, the air volume adjusting valve can be turned over to a first position or a second position, the air volume adjusting valve opens the air return opening in the first position, and the air volume adjusting valve closes the air return opening in the second position.

In some embodiments of the present application, the opening degree of the air volume adjusting valve is adjustable to adjust the air volume entering the air mixing area through the air return opening.

In some embodiments of the present application, the housing includes a top plate, a bottom plate, a first side plate, a second side plate, a third side plate, and a fourth side plate, the first side plate and the second side plate are disposed opposite to each other, the third side plate and the fourth side plate are disposed opposite to each other, the air inlet is disposed on the first side plate, and the air outlet is disposed on the second side plate.

In some embodiments of the present application, the air return opening is disposed on the bottom plate or on the third side plate or on the fourth side plate, and when the air return opening is disposed on the bottom plate, the air return opening is adjacent to the fan maintenance plate on the bottom plate.

In some embodiments of the present application, a driving mechanism is disposed on the housing, and a power output shaft of the driving mechanism is connected to the air volume adjusting valve for driving the air volume adjusting valve to turn over.

In some embodiments of the present application, the air return opening is disposed on the third side plate and/or the fourth side plate, the air return opening is connected to an air return guiding pipe, and the air volume adjusting valve is disposed at a distal end of the air return guiding pipe.

In some embodiments of the present application, the fan is a cross-flow fan or a centrifugal fan, and is configured with a volute, an air inlet of the volute is communicated with the air mixing area, and an air outlet of the volute is communicated with the air outlet on the housing through an annular sheet metal part.

In some embodiments of the present application, a sound absorption member is attached to a position on the inner wall of the housing corresponding to the scroll casing, and the sound absorption member surrounds the scroll casing for a circle.

In some embodiments of the present application, an air conditioner is further provided, including an air duct type air conditioner indoor unit, where the air duct type air conditioner indoor unit is the air duct type air conditioner indoor unit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a perspective view of an air duct type air conditioner indoor unit according to an embodiment of the present invention;

fig. 2 is a perspective view of the air duct type air conditioning indoor unit shown in fig. 1, with a third side plate omitted;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a top view of FIG. 2;

FIG. 5 is a perspective view of an indoor unit of a two-duct type air conditioner according to an embodiment of the present invention;

FIG. 6 is a top view of an indoor unit of a two-duct type air conditioner according to an embodiment of the present invention;

FIG. 7 is a perspective view of the three duct type indoor unit of the air conditioner according to the embodiment of the present invention;

FIG. 8 is a top view of an indoor unit of a three-duct air conditioner according to an embodiment of the present invention;

fig. 9 is a perspective view of the four-duct type air conditioner indoor unit according to the embodiment of the present invention;

fig. 10 is a top view of the four-duct type air conditioner indoor unit according to the embodiment of the present invention.

Reference numerals: 10-a housing; 11-an air inlet; 12-an air outlet; 13-air return; 14-a top plate; 15-a base plate; 16-a first side panel; 17-a second side panel; 18-a third side panel; 19-a fourth side panel; 20-a heat exchanger; 30-a water receiving part; 40-a fan; 50-a wind mixing area; 60-air volume adjusting valve; 70-a volute; 80-return air induced duct; 90-sound absorbing elements; 100-ring-shaped sheet metal parts.

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The air conditioner performs a cooling and heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The cooling and heating cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.

The low-temperature and low-pressure refrigerant enters the compressor, the compressor compresses the refrigerant gas in a high-temperature and high-pressure state, and the compressed refrigerant gas is discharged. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigerating effect by heat exchange with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor, an outdoor heat exchanger, and an outdoor fan, the indoor unit of the air conditioner includes a portion of an indoor heat exchanger and an indoor fan, and a throttling device (e.g., a capillary tube or an electronic expansion valve) may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. The air conditioner performs a heating mode when the indoor heat exchanger serves as a condenser, and performs a cooling mode when the indoor heat exchanger serves as an evaporator.

The indoor heat exchanger and the outdoor heat exchanger are switched to be used as a condenser or an evaporator, a four-way valve is generally adopted, and specific reference is made to the arrangement of a conventional air conditioner, which is not described herein again.

The refrigeration working principle of the air conditioner is as follows: the compressor works to enable the interior of the indoor heat exchanger (in the indoor unit, the evaporator at the moment) to be in an ultralow pressure state, liquid refrigerant in the indoor heat exchanger is rapidly evaporated to absorb heat, air blown out by the indoor fan is cooled by the coil pipe of the indoor heat exchanger to become cold air which is blown into a room, the evaporated and vaporized refrigerant is compressed by the compressor, is condensed into liquid in a high-pressure environment in the outdoor heat exchanger (in the outdoor unit, the condenser at the moment) to release heat, and the heat is dissipated into the atmosphere through the outdoor fan, so that the refrigeration effect is achieved by circulation.

The heating working principle of the air conditioner is as follows: the gaseous refrigerant is pressurized by the compressor to become high-temperature and high-pressure gas, and the high-temperature and high-pressure gas enters the indoor heat exchanger (the condenser at the moment), is condensed, liquefied and released heat to become liquid, and simultaneously heats indoor air, so that the aim of increasing the indoor temperature is fulfilled. The liquid refrigerant is decompressed by the throttling device, enters the outdoor heat exchanger (an evaporator at the moment), is evaporated, gasified and absorbs heat to form gas, absorbs the heat of outdoor air (the outdoor air becomes cooler) to form gaseous refrigerant, and enters the compressor again to start the next cycle.

The air duct machine is a hidden air conditioner for short, and can also be called an air conditioner air duct machine or an air duct machine air conditioner. The air duct machine solves the problem that the appearance of the on-hook air conditioner and the cabinet air conditioner is influenced when the on-hook air conditioner and the cabinet air conditioner are exposed outside, and meanwhile, the length of a travelling pipe is longer than that of a common household air conditioner, the installation is more flexible, and the air duct machine is a novel air conditioner type.

Example one

The embodiment of the application provides an air duct type air conditioner indoor unit, which comprises a shell 10, a heat exchanger 20, a water receiving part 30 and a fan 40.

Wherein, casing 10 injects the inner space of air duct type air conditioning indoor set to play support and guard action to inside each part, different with current air duct type air conditioning indoor set, not only seted up air intake 11 and air outlet 12 on casing 10 in this embodiment, still seted up return air inlet 13, during fan 40 work, inside indoor air got into casing 10 through air intake 11, discharge indoor by air outlet 12 after the heat exchanger 20 heat transfer, return air inlet 13's effect lies in introducing indoor return air or outdoor new trend inside casing 10 through return air inlet 133, this part wind does not pass through the heat exchanger, the temperature is higher.

The heat exchangers 20 are obliquely installed in the casing 10, the number and the type of the heat exchangers 20 are not limited, and the number and the type of the heat exchangers 20 can be 1 row or multiple rows according to the size and the capacity, and the type can be a V-type or a U-type, etc., unlike the existing air duct type air conditioning indoor unit, the heat exchanger 20 is located at the side of the air inlet 11 in the embodiment.

The water receiving part 30 is disposed in the casing 10 below the heat exchanger 20, and is in a shape of a disk for receiving the condensed water on the heat exchanger 20, and the water receiving part 30 may be an independent part and is fixed on the inner wall of the casing 10 through a connection structure, or is in a disk structure integrally formed with the inner wall of the casing 10.

The fan 40 is disposed in the casing 10, and includes a motor and an impeller, the number and type of the motor are not limited, generally, the motor is mainly a single motor, the type of the motor is either alternating current or direct current, the number and type of the impeller are not limited, the number of the impeller can be multiple, the type of the impeller can be through-flow or centrifugal, and the like, unlike the existing air duct type air conditioning indoor unit, the fan 40 in this embodiment is located at the side of the air outlet 12.

Meanwhile, in the present embodiment, a wind mixing area 50 is formed in the housing 10 between the heat exchanger 20 and the fan 40, and along the direction of the wind in the housing 10 (as shown by the direction of the straight arrow in fig. 2 and 3), the air return opening 13 is located downstream of the heat exchanger 20 and upstream of the fan 40, and is communicated with the wind mixing area 50. Specifically, a certain distance is reserved between the heat exchanger 20 and the fan 40 to form the air mixing area 50, and the air return opening 13 is located between the heat exchanger 20 and the fan 40.

In this embodiment, the heat exchanger 20 is located at the side of the air inlet 11, the fan 40 is located at the side of the air outlet 12, the air mixing area 50 is formed between the heat exchanger 20 and the fan 40, the air return opening 13 communicated with the air mixing area 50 is formed in the casing 10, during refrigeration or dehumidification, the fan 40 operates, indoor air entering the indoor unit from the air inlet 11 exchanges heat with the heat exchanger 20 first, and has a lower evaporation temperature, meanwhile, indoor return air or outdoor fresh air enters the indoor unit from the air return opening 13, and part of the air does not pass through the heat exchanger, and has a higher temperature, and is mixed with low-temperature air entering from the air inlet 11 and exchanging heat with the heat exchanger 20, and then is discharged from the air outlet 12, so that the air outlet temperature can be effectively increased, and the air outlet temperature is increased on the basis of ensuring that the indoor air is sufficiently refrigerated and dehumidified by using the lower evaporation temperature, and the comfort level of a user is improved.

In this embodiment, the air volume adjusting valve 60 is disposed on the air return opening 13, and the air volume adjusting valve 60 can be turned to a first position or a second position, in which the air volume adjusting valve 60 opens the air return opening 13, and in which the air volume adjusting valve 60 closes the air return opening 13. When the refrigeration or dehumidification mode is started, when the temperature of the air after heat exchange by the heat exchanger 20 is low, the air volume adjusting valve 60 can be opened in a linkage manner; when the heating or high-speed cooling mode is started, when the temperature of the air after heat exchange of the heat exchanger 20 is proper, the air volume adjusting valve 60 can be not opened, or the air volume adjusting valve 60 is manually selected to be opened or closed, and when the indoor unit is shut down, the air volume adjusting valve 60 is closed in a linkage manner, so that dust is prevented from entering through the air return opening 13.

The opening degree of the air volume adjusting valve 60 is adjustable to adjust the air volume entering the air mixing area 50 through the air return opening 13. That is, the air volume adjusting valve 60 has a certain air volume adjusting capability, and is linked with the indoor unit controller, so that the linkage control of the opening degree of the air volume adjusting valve 60 can be realized by combining the outlet air temperature. For example, after the air conditioner is started and operated for a certain time T1, when the outlet air temperature is not higher than a certain internal set temperature T1, the air volume adjusting valve 60 is automatically opened to a certain corresponding opening degree, after the air conditioner is continuously operated for a certain time T2, the outlet air temperature is still reduced, the opening degree of the air volume adjusting valve 60 is automatically increased along with the reduction of the temperature, and the maximum introduced return air volume is controlled to be about 20% of the total outlet air volume; after the operation is carried out for a certain time t2, the outlet air temperature is maintained in the target temperature range, and the opening degree of the air volume adjusting valve 60 is kept unchanged; when the outlet air temperature rises and exceeds the target temperature range, the opening degree of the air volume adjusting valve 60 automatically reduces along with the rise of the temperature, and when the outlet air temperature exceeds a certain internal set temperature T2, the air volume adjusting valve 60 is completely closed; when the air conditioner is turned off, the air volume adjusting valve 60 is closed in a linkage manner. The air volume adjusting valve 60 can be an air door or the like.

In this embodiment, the housing 10 is specifically a rectangular housing, and includes a top plate 14, a bottom plate 15, a first side plate 16, a second side plate 17, a third side plate 18, and a fourth side plate 19, where the first side plate 16 and the second side plate 17 are disposed oppositely, the third side plate 18 and the fourth side plate 19 are disposed oppositely, the air inlet 11 is disposed on the first side plate 16, and the air outlet 12 is disposed on the second side plate 17, so as to implement a side-in and side-out airflow organization form.

For the air return opening 13, it is set up on the bottom plate 15 in this embodiment, correspondingly the air volume adjusting valve 60 is also set up on the bottom plate 15, the air return opening 13 and the air volume adjusting valve 60 are close to the fan maintenance board on the bottom plate 15, it is convenient for the whole maintenance and installation.

The air volume adjusting valve 60 can also be used in a manner that the air return opening 13 is hinged to a plate-shaped member, and correspondingly, the casing 10 is provided with a driving mechanism (not shown), a power output shaft of the driving mechanism is connected with the air volume adjusting valve 60 for driving the air volume adjusting valve 60 to turn over, and the opening degree control of the air volume adjusting valve 60 and the air volume adjusting valve 60 can be turned on and off by controlling the action of the driving mechanism.

In this embodiment, the fan 40 is a cross-flow fan or a centrifugal fan, and is configured with a volute 70, an air inlet of the volute 70 is communicated with the air mixing area 50, and an air outlet of the volute 70 is communicated with the air outlet 12 on the housing 10 through an annular sheet metal part 100. The volute 70 is arranged to perform the function of collecting and guiding the air flow and simultaneously facilitate the sufficient mixing of the air in the air mixing area 50.

Since the fan 40 is located at the air outlet 13 side, the operation noise of the fan 40 is reasonably controlled, in this embodiment, the sound absorbing member 90 is attached to the inner wall of the housing 10 at a position corresponding to the scroll 70, and the sound absorbing member 90 surrounds the scroll 70 for a circle. That is, the sound absorbing member 90, such as sound absorbing cotton, is disposed inside the casing of the external space of the scroll casing 70 to reduce the operation noise of the fan 40, and further reduce the wind outlet noise.

Example two

Referring to fig. 5 and 6, unlike the first embodiment, the return air inlet 13 is provided on the third side plate 18, and accordingly the air amount adjusting valve 60 is also provided on the third side plate 18, that is, the return air is introduced directly through the machine body.

EXAMPLE III

Referring to fig. 7 and 8, different from the first embodiment, the return air inlet 13 is arranged on the third side plate 18 in the first embodiment, and the return air inlet 13 is connected with the return air draft tube 80, the air volume adjusting valve 60 is arranged at the tail end of the return air draft tube 80, namely, the return air is introduced through the external return air draft tube 80, the air volume adjusting valve 60 is arranged at the tail end of the return air draft tube 80, and the orientation of the tail end nozzle of the return air draft tube 80 is changed, so that the degree of freedom of position selection of the return air inlet is larger, and the room decoration is convenient to match.

Example four

Referring to fig. 9 and 10, different from the first embodiment, in the present embodiment, the third side plate 18 and the fourth side plate 19 are both provided with the air return inlets 13, and each air return inlet 13 is correspondingly connected with an air return guiding pipe 80, and the air return inlets 13 on the two side plates can be symmetrically arranged or arranged according to specific room decoration conditions, so that the air return is more flexibly guided, the freedom degree of position selection is greater, and the room decoration is further facilitated.

EXAMPLE five

In this embodiment, still provide an air conditioner, including the interior machine of tuber pipe air conditioning, the structure of the interior machine of tuber pipe air conditioning is seen the utility model discloses the embodiment of the interior machine of tuber pipe air conditioning is one to four to and the description of attached 1 to 10, no longer describe herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. An air duct type air conditioner indoor unit, comprising:

the air conditioner comprises a shell, wherein an air inlet, an air outlet and an air return inlet are formed in the shell;

the heat exchanger is obliquely arranged in the shell and is positioned on the side of the air inlet;

the water receiving part is arranged in the shell and is positioned below the heat exchanger;

the fan is arranged in the shell and is positioned on the side of the air outlet;

and a wind mixing area between the heat exchanger and the fan is formed in the shell, and the wind return inlet is positioned at the downstream of the heat exchanger and the upstream of the fan and communicated with the wind mixing area along the flow direction of wind in the shell.

2. The indoor unit of an air duct type air conditioner according to claim 1,

an air volume adjusting valve is arranged on the air return opening and can be turned to a first position or a second position, the air volume adjusting valve opens the air return opening when the first position is reached, and the air volume adjusting valve closes the air return opening when the second position is reached.

3. The indoor unit of an air duct type air conditioner according to claim 2,

the opening of the air volume adjusting valve is adjustable so as to adjust the air volume entering the air mixing area through the air return opening.

4. The indoor unit of an air duct type air conditioner according to claim 2,

the shell comprises a top plate, a bottom plate, a first side plate, a second side plate, a third side plate and a fourth side plate, wherein the first side plate and the second side plate are arranged oppositely, the third side plate and the fourth side plate are arranged oppositely, the air inlet is formed in the first side plate, and the air outlet is formed in the second side plate.

5. The indoor unit of an air duct type air conditioner according to claim 4,

the air return opening is formed in the bottom plate or the third side plate or the fourth side plate, and when the air return opening is formed in the bottom plate, the air return opening is close to the fan maintenance plate on the bottom plate.

6. The indoor unit of an air duct type air conditioner according to claim 5,

and the shell is provided with a driving mechanism, and a power output shaft of the driving mechanism is connected with the air volume regulating valve and is used for driving the air volume regulating valve to overturn.

7. The indoor unit of an air duct type air conditioner according to claim 4,

the air return inlet is formed in the third side plate and/or the fourth side plate and is connected with an air return guiding pipe, and the air quantity regulating valve is arranged at the tail end of the air return guiding pipe.

8. The indoor unit of an air duct type air conditioner according to claim 1,

the fan is a cross-flow fan or a centrifugal fan and is provided with a volute, an air inlet of the volute is communicated with the air mixing area, and an air outlet of the volute is communicated with the air outlet on the shell through an annular sheet metal part.

9. The indoor unit of an air duct type air conditioner according to claim 8,

the inner wall of the shell is attached to a position corresponding to the volute and is provided with a sound absorption component, and the sound absorption component surrounds the volute for a circle.

10. An air conditioner comprises an air duct type air conditioner indoor unit and is characterized in that,

the air duct type air-conditioning indoor unit as claimed in any one of claims 1 to 9.

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