CN219868162U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model discloses an indoor unit of an air conditioner, which comprises a fresh air volute, wherein a fresh air channel is formed in the fresh air volute, a fresh air grid communicated with the fresh air channel is arranged on the surface of the fresh air volute, a centrifugal fan and a heating disc are arranged in the fresh air volute, the centrifugal fan is arranged close to the fresh air grid and is used for driving outdoor air to enter the fresh air volute from the fresh air grid and sending the outdoor air in the fresh air volute to the room along the fresh air channel, and the heating disc is used for heating the outdoor air to raise the temperature of the outdoor air entering the fresh air volute. According to the indoor unit of the air conditioner, the heating disc is arranged to process the fresh air sucked into the room by the centrifugal fan, so that the problem that the fresh air conditioner cannot quickly perform temperature compensation on outdoor low-temperature gas when being used in winter is effectively solved, the structural design is ingenious, the fresh air inlet effect is excellent, and the use experience of a user is good.

Description

Indoor unit of air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an air conditioner indoor unit.

Background

The fresh air conditioner is a healthy and comfortable air conditioner with a fresh air function, and can realize ventilation between indoor and outdoor by utilizing a centrifugal fan, thereby being capable of purifying indoor air. The fresh air conditioner inevitably introduces outdoor low-temperature gas into a room when the engine runs, and then changes the indoor temperature to cause bad use experience for a user. However, for a part of high-temperature areas, the outdoor air temperature in winter is extremely low, enough temperature compensation cannot be realized by adopting fresh air mixing, the heating effect on the outdoor air needs to be enhanced by adopting an additional mode, and for the situation, the existing part of air conditioner is provided with a heating component in a fresh air duct to heat the outdoor air entering the fresh air duct, however, because the length of the fresh air duct is limited, the residence time of the outdoor air in the fresh air duct is shorter, and the heating component cannot realize the heating on the outdoor air in a short time.

Disclosure of Invention

The utility model aims to provide an air conditioner indoor unit which mixes fresh air, strengthens the heating capacity of an air conditioner and improves the use experience of users.

In order to achieve the above object, the present utility model provides an air conditioner indoor unit comprising:

the shell is provided with an air inlet and an air outlet;

the heat exchanger is arranged in the shell and is used for exchanging heat with indoor air;

the heat exchange fan is arranged in the shell, and is used for driving indoor air to enter the shell from the air inlet to exchange heat with the heat exchanger and discharging the indoor air from the air outlet after the heat exchange is completed;

the fresh air volute is provided with a fresh air channel, and the surface of the fresh air volute is provided with a fresh air grid;

the centrifugal fan is arranged in the fresh air volute and is close to the fresh air grid, and is used for driving outdoor air to enter the fresh air volute from the fresh air grid and sending the outdoor air in the fresh air volute to the room along the fresh air duct;

the heating plate is used for increasing the temperature of the outdoor air entering the fresh air duct;

and the heating disc is arranged on an output shaft of the driving device and can rotate under the driving of the driving device so as to adjust the inclination of the heating disc.

In some embodiments of the present utility model, the heating plate includes an adjusting frame and a heating wire, the adjusting frame is arranged on the output shaft of the driving device, and the heating wire is arranged on the adjusting frame and is fixedly connected with the adjusting frame.

In some embodiments of the present utility model, the adjusting frame includes a main body rod and a fixing ring, where the main body rod is provided with at least one fixing ring and sequentially disposed along a circumferential direction of the fixing ring, one end of each main body rod is connected to each other, the other end of each main body rod is fixedly connected to the fixing ring, and the heating wire is spirally arranged on the main body rod.

In some embodiments of the present utility model, a fixing groove is formed on the surface of the main body rod, and the heating wire is disposed in the fixing groove and is fixedly connected with the main body rod through the fixing groove.

In some embodiments of the utility model, the slot width of the fixed slot is less than the maximum width of the fixed slot.

In some embodiments of the utility model, the driving device is a stepper motor.

In some embodiments of the utility model, further comprising:

the electric control box is arranged beside the fresh air volute and is electrically connected with the driving device and the heating wire.

Compared with the prior art, the air conditioner indoor unit has the beneficial effects that:

the embodiment of the utility model provides an air conditioner indoor unit which comprises a shell, a heat exchanger, a heat exchange fan and other structures, wherein the shell is provided with an air inlet and an air outlet, the heat exchanger is arranged in the shell and used for carrying out heat exchange with indoor air, and the heat exchange fan is arranged in the shell and used for driving the indoor air to enter the shell from the air inlet to carry out heat exchange with the heat exchanger and discharging from the air outlet after the heat exchange is completed. Furthermore, the indoor unit of the air conditioner further comprises a fresh air volute, a fresh air channel is formed in the fresh air volute, and a fresh air grid communicated with the fresh air channel is arranged on the surface of the fresh air volute; still further, be equipped with centrifugal fan and heating plate in the new trend spiral case, centrifugal fan is close to the new trend grid setting, and it is used for driving outdoor air and gets into the new trend spiral case from the new trend grid and send indoor with the indoor outdoor air of new trend spiral case along the new trend wind channel, and the heating plate is used for heating the indoor outdoor air in the new trend wind channel. Further, a driving device is arranged on one side of the fresh air volute, and the heating disc is arranged on an output shaft of the driving device and can rotate under the driving of the driving device so as to adjust the inclination of the heating disc. Based on the structure, the indoor unit of the air conditioner selectively heats the fresh air entering the room by arranging the heating disc in the fresh air volute so as to improve the temperature of the fresh air, strengthen the fresh air exchange effect, and simultaneously consider that the residence time of the outdoor air in the fresh air duct is shorter. Therefore, the air conditioner indoor unit is ingenious in structural design, excellent in fresh air indoor effect and good in use experience of users.

Drawings

Fig. 1 is a schematic view of a fresh air volute structure of an indoor unit of an air conditioner according to some embodiments of the present utility model;

fig. 2 is an assembled schematic view of a heating pan of an indoor unit of an air conditioner according to some embodiments of the present utility model;

FIG. 3 is a schematic diagram of the structure of a hotplate according to some embodiments of the utility model;

fig. 4 is a schematic structural view of an adjusting bracket according to some embodiments of the present utility model.

In the drawing the view of the figure,

1. fresh air volute; 11. fresh air duct; 12. a fresh air grid; 2. a centrifugal fan; 3. a heating plate; 31. an adjusting frame; 311. a main body lever; 3111. a fixing groove; 312. a fixing ring; 32. a heating wire; 4. a driving device; 5. and an electric control box.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center of gravity", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "longitudinal", "transverse", "top", "bottom", "inner", "outer", "and" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in lateral height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely under the second feature, or simply means that the first feature is less in lateral height than the second feature.

The air conditioner of the present utility model performs a refrigerating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. 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 liquid-phase refrigerant in a high-temperature and high-pressure state 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 may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner may adjust the temperature of the indoor space throughout the cycle.

An outdoor unit of an air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, an indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the outdoor heat exchanger is used as a heater for a heating mode, and when the indoor heat exchanger is used as an evaporator, the outdoor heat exchanger is used as a cooler for a cooling mode.

The air conditioner outdoor unit further includes an outdoor fan generating an air flow of the outdoor air passing through the outdoor heat exchanger to promote heat exchange between the refrigerant flowing in the heat transfer tubes of the outdoor heat exchanger and the outdoor air. The outdoor fan is driven by an outdoor fan motor capable of changing the rotational speed. The outdoor fan and the outdoor fan motor together become an outdoor fan.

The air conditioner indoor unit further includes an indoor fan that generates an airflow of indoor air passing through the indoor heat exchanger to promote heat exchange between the refrigerant flowing in the heat transfer tubes of the indoor heat exchanger and the indoor air. The indoor fan is driven by an indoor fan motor capable of changing the rotational speed. The indoor fan and the indoor fan motor together become an indoor fan.

Referring to fig. 1-4, an embodiment of the present utility model provides an indoor unit of an air conditioner, which includes a housing, a heat exchanger, a heat exchange fan, and other structures, wherein the housing is formed with an air inlet and an air outlet, the heat exchanger is disposed in the housing and is used for performing heat exchange with indoor air, and the heat exchange fan is disposed in the housing and is used for driving the indoor air to enter the housing from the air inlet to perform heat exchange with the heat exchanger and to be discharged from the air outlet after completing the heat exchange. Furthermore, the indoor unit of the air conditioner further comprises a fresh air volute 1, the fresh air volute 1 is arranged beside the air mixing assembly of the indoor unit of the air conditioner and is matched with the air mixing assembly for use, further, a fresh air channel 11 is formed in the fresh air volute 1, a fresh air grid 12 communicated with the fresh air channel 11 is arranged on the surface of the fresh air volute 1, a centrifugal fan 2 and a heating disc 3 are arranged in the fresh air volute 1, the centrifugal fan 2 is arranged close to the fresh air grid 12 and is used for driving outdoor air to enter the fresh air volute 1 from the fresh air grid 12 and sending the outdoor air in the fresh air volute 1 into a room along the fresh air channel 11, and the heating disc 3 can heat the outdoor air in the fresh air channel 11 so as to improve the temperature strengthening air mixing effect of the outdoor air. Further, a driving device 4 is arranged on one side of the fresh air volute 1, and the heating plate 3 is arranged on an output shaft of the driving device 4 and can rotate under the driving of the driving device 4 to adjust the inclination of the heating plate 3. In the embodiment of the present utility model, when the outdoor air is confirmed to be inhaled, the user may activate the driving device 4 to rotate the heating tray 3 such that the heating tray 3 is vertically disposed to increase the contact area of the outdoor air with the heating tray 3.

Based on the structure, the indoor unit of the air conditioner selectively heats the fresh air entering the room by arranging the heating disc 3 in the fresh air volute so as to improve the temperature of the fresh air, strengthen the fresh air exchange effect, and simultaneously consider that the residence time of the outdoor air in the fresh air duct is shorter, the inclination of the heating disc 3 is adjusted by the driving device 4 so as to increase the contact area between the outdoor air and the heating disc, and improve the heating effect, thereby solving the problem of too low outdoor air, and enabling a user to obtain good use experience at a lower outdoor temperature. Therefore, the air conditioner indoor unit is ingenious in structural design, excellent in fresh air indoor effect and good in use experience of users.

To further clarify the rotation of the heating plate 3, please refer to fig. 1, in which, in the embodiment of the present utility model, the flow direction of the outdoor air along the fresh air duct 11 is defined as the X direction, and the heating plate 3 is disposed in a plane perpendicular to the X direction and can be driven by the driving device 4 to rotate in parallel or perpendicular to the X direction. When the heating plate 3 is started, the driving device 4 is started to rotate the heating plate 3 to enable the plane where the heating plate 3 is located to be perpendicular to the X direction, and the whole heating plate 3 is perpendicular to the flow direction of outdoor air at the moment; when the temperature of the outdoor air meets the requirement, and the heating disc 3 is not needed to be used for heating, the driving device 4 can be started to adjust the position of the heating disc 3 to enable the plane where the heating disc 3 is positioned to be parallel to the X direction, at the moment, the contact area between the heating disc 3 and the outdoor air is minimum, the influence of the heating disc 3 on the flow rate of the outdoor air can be reduced to the greatest extent, and the outdoor air can be ensured to smoothly flow into the room or the shell along the fresh air duct 11.

It can be found that the heating plate 3 is continuously influenced by the flow of the outdoor air when being started, and at the moment, the rotation of the heating plate 3 is limited to ensure that the position of the heating plate 3 is not changed, so that the outdoor air in the fresh air duct 11 is always effectively heated. Therefore, in some embodiments of the present utility model, the driving device 4 is preferably a stepper motor, the stepper motor can convert the electric pulse signal into a corresponding angular displacement or linear displacement, and when the stepper motor is used each time, the stepper motor only needs to send a corresponding signal to ensure that the stepper motor drives the heating disc 3 to rotate to a designated angle, and the stepper motor after rotation is kept in a state of stopping operation all the time until receiving the signal again, so that the rotation of the heating disc 3 can be limited, and the stepper motor is ensured to be kept at a predetermined position all the time so as to effectively heat the outdoor air in the fresh air duct 11.

Further, referring to fig. 3 and 4, in some embodiments of the present utility model, the heating plate 3 includes an adjusting frame 31 and a heating wire 32 fixed on the adjusting frame 31, it is obvious that the heating wire 32 is used for providing heat to heat the outdoor air in the fresh air duct 11, the adjusting frame 31 provides a corresponding setting basis for the heating wire 32, and the adjusting frame 31 is further connected with the driving device 4 to achieve the angle adjustment of the heating plate 3. Still further, the adjusting frame 31 includes a main body rod 311 and a fixing ring 312, at least one main body rod 311 is disposed along a circumferential direction of the fixing ring 312, in this embodiment of the present utility model, three main body rods 311 are disposed along a circumferential direction of the fixing ring 312, one ends of the three main body rods 311 are located at a center of the fixing ring 312 and are connected to each other, and the other ends of the three main body rods 311 are respectively fixedly connected to the fixing ring 312 to form the adjusting frame 31, and the heating wire 32 is disposed on the main body rod 311 in a spiral shape.

It is apparent that the heating wire 32 of the present utility model has various connection modes similar to the main body rod 311, specifically, please refer to fig. 4, in some embodiments of the present utility model, a plurality of fixing grooves 3111 are formed on the surface of the main body rod 311, the cross section of the fixing groove 3111 is U-shaped, and the heating wire 32 is disposed in the fixing groove 3111, which may be adhered in the fixing groove 3111 or may be stabilized in the fixing groove 3111 by other limiting members.

In particular, in other embodiments of the present utility model, the width of the slot opening of the fixing slot 3111 is smaller than the maximum width of the fixing slot 3111, and the heating wire 32 can stay in the fixing slot 3111 under the limiting action of the opening of the fixing slot 3111 after being clamped into the fixing slot 3111, so that the fixing of the fixing slot 3111 can be achieved without providing other limiting members, the stability of the fixing slot 3111 can be ensured, and the effective connection between the heating wire 32 and the main body rod 311 can be achieved.

In addition, referring to fig. 2, in some embodiments of the present utility model, the air conditioner indoor unit further includes an electric control box 5 disposed beside the fresh air volute 1 and electrically connected to the driving device 4 of the heating assembly and the heating wire 32, for controlling the operation of the driving device 4 to implement the position adjustment of the heating plate 3, so as to complete the adjustment of the air heating time node in the fresh air duct 11, and further, the electric control box 5 is electrically connected to the heating wire 32 on the heating plate 3, for controlling the heating time and heating power of the heating wire 32, so as to implement the effective control of the air heating time and heating effect in the fresh air duct 11.

In fact, in order to ensure that the temperature of the outdoor air can meet the requirement of use, the air conditioner indoor unit of the utility model can still continue to be provided with the air mixing duct besides the heating component arranged in the fresh air duct 11, and the heated outdoor air is sent into the shell to be further mixed with the indoor air so as to raise the temperature of the outdoor air again, and the heated outdoor air can be directly sent into the room by utilizing the fresh air duct 11 of the utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (7)

1. An air conditioning indoor unit, comprising:

the shell is provided with an air inlet and an air outlet;

the heat exchanger is arranged in the shell and is used for exchanging heat with indoor air;

the heat exchange fan is arranged in the shell, and is used for driving indoor air to enter the shell from the air inlet to exchange heat with the heat exchanger and discharging the indoor air from the air outlet after the heat exchange is completed;

the fresh air volute is provided with a fresh air channel, and the surface of the fresh air volute is provided with a fresh air grid;

the centrifugal fan is arranged in the fresh air volute and is close to the fresh air grid, and is used for driving outdoor air to enter the fresh air volute from the fresh air grid and sending the outdoor air in the fresh air volute to the room along the fresh air duct;

the heating plate is used for increasing the temperature of the outdoor air entering the fresh air duct;

and the heating disc is arranged on an output shaft of the driving device and can rotate under the driving of the driving device so as to adjust the inclination of the heating disc.

2. The indoor unit of claim 1, wherein the heating plate comprises an adjusting frame and a heating wire, the adjusting frame is arranged on an output shaft of the driving device, and the heating wire is arranged on the adjusting frame and fixedly connected with the adjusting frame.

3. The indoor unit of claim 2, wherein the adjusting frame comprises a main body rod and a fixing ring, the main body rod is provided with at least one fixing ring and is sequentially arranged along the circumferential direction of the fixing ring, one end of each main body rod is connected with each other, the other end of each main body rod is respectively and fixedly connected with the fixing ring, and the heating wire is spirally arranged on the main body rod.

4. An indoor unit of an air conditioner according to claim 3, wherein the surface of the main body rod is provided with a fixing groove, and the heating wire is arranged in the fixing groove and fixedly connected with the main body rod through the fixing groove.

5. The indoor unit of claim 4, wherein the width of the slot is less than the maximum width of the slot.

6. An indoor unit for an air conditioner according to claim 1, wherein the driving means is a stepping motor.

7. The indoor unit of claim 2, further comprising:

the electric control box is arranged beside the fresh air volute and is electrically connected with the driving device and the heating wire.