CN110469911A - Indoor unit and air conditioner with it - Google Patents

Abstract

The invention provides an indoor unit and an air conditioner with the same. The indoor unit includes a shell; the heat exchanger is connected to the shell; the fan assembly, the fan assembly and the shell are movable, and the fan assembly is used to draw the airflow outside the shell into the shell for heat exchange with the heat exchanger, and then Blowing out of the housing; the first driving part is connected with the housing, and the first driving part can drive the fan assembly to rotate at a preset angle. Such setting can change the air supply direction of the fan assembly according to the air outlet mode of the indoor unit, thereby effectively reducing the air supply resistance. For example, when the indoor unit is in the heating mode, the fan assembly can be driven to discharge air obliquely downward, and when the indoor unit is in the cooling mode, the fan assembly can be driven to discharge air obliquely upward. At the same time, the shell is set as the air outlet frame and the bottom plate, and the air outlet is arranged in the circumferential direction of the air outlet frame. This setting can increase the air intake of the indoor unit, effectively reduce the air loss of the indoor unit, and improve the user's experience.

Description

Indoor unit and air conditioner having same

technical field

The present invention relates to the technical field of air conditioner equipment, in particular to an indoor unit and an air conditioner having the same.

Background technique

At present, the air outlets of the existing wall-mounted air conditioner indoor units are basically arranged at the lower end, and the air is guided by the cross-flow fan blades and then passed through the horizontal air guide plate to realize the air outlet within a certain range up and down. The air density is high, and the airflow tends to sink. After using the wind deflector to guide the wind direction, the cold wind may still blow directly on the human body, causing discomfort. At the same time, when the air deflector of the air conditioner is turned upward, the air outlet is reduced, and the air output is also greatly reduced, thereby affecting the cooling performance.

In order to improve the comfort of the air outlet of the indoor unit and improve the cooling performance, a wall-mounted air conditioner indoor unit with upper and lower air outlets is disclosed in the prior art. When cooling, the upper cross-flow fan blades work, the wind enters from the left and right sides, passes through the upper evaporator for heat exchange, and then comes out. After the wind reaches the indoor ceiling, it will form an adsorption effect, making it blow out far away before sinking, so that the cold wind will not Blow directly onto the body. However, this kind of air conditioner is equipped with air inlets on the left and right sides. The air inlets are small and use double cross-flow fan blades for drainage. The wind speed direction is induced by 90° before it is blown out from the upper and lower air outlets. Most of the air flows through the two ends of the evaporator. , and a small part is blown out from the middle, and no matter it is cooling or heating, only the evaporators on the upper and lower sides perform heat exchange. Such a structure has large wind resistance and low utilization efficiency of the evaporator.

The prior art also discloses a wall-mounted air-conditioning inner unit with upper and lower air outlets, which uses two centrifugal fan blades to drain air, enter the air from the middle, and let the air out from the upper and lower sides, and at the same time, the middle part of the air outlet is close to the two fan blades There is a baffle at the position opposite to the rotation direction. The extension line extending from the two baffles to the air conditioner body has an included angle. The wind direction at the intersection of the duct airflow makes the airflow located in the middle of the air duct, thereby increasing the wind speed and enhancing the air volume. But relatively speaking, the air volume is still relatively small, and the root cause of the problem has not been solved, and the air intake from the middle is blocked by the panel, and the air intake resistance is relatively large. If the fan speed is increased, the problem directly caused is the increase in noise. .

Contents of the invention

The main purpose of the present invention is to provide an indoor unit and an air conditioner having the same, so as to solve the problem of large wind resistance in the prior art.

In order to achieve the above object, according to one aspect of the present invention, an indoor unit is provided, including: a housing; a heat exchanger, the heat exchanger is connected to the housing; a fan assembly, the fan assembly and the housing are movable, The fan assembly is used to draw the airflow outside the casing into the casing to exchange heat with the heat exchanger, and then blow it out of the casing; the first driving part, the first driving part is connected with the casing, and the first driving part can drive the fan assembly to rotate Arranging at a preset angle, wherein, the housing includes: a bottom plate; a support frame, the support frame and the bottom plate enclose an annular accommodation space, an air inlet is arranged around the support frame, and the heat exchanger is located between the air inlet and the air inlet channel .

Further, the fan assembly includes: a support part, the support part is rotatably connected to the housing; a fan part, the fan part is connected to the support part, the first drive part is connected to the support part, and the first drive part can drive the support part to rotate To drive the fan unit to rotate at a preset angle.

Further, the blower part includes: fan blades, which are arranged in the support part; a second drive part, the output shaft of the second drive part is connected with the fan blades, and the second drive part can drive the fan blades to rotate.

Further, the blades are axial flow blades, and/or the second driving part is a DC motor, and/or the first driving part is a stepping motor.

Further, the support part includes a support frame, the outer surface of the support frame is provided with a rotating shaft, the support frame is rotatably connected to the housing through the rotating shaft, the support frame has a housing chamber for installing the fan part, and the housing chamber is adjacent to the housing The side walls are provided with air intake channels.

Further, there are multiple accommodation cavities, and the plurality of accommodation cavities are arranged along the length direction of the support frame, and two adjacent accommodation cavities are separated by partitions.

Further, the heat exchanger is an annular structure, and the heat exchanger is located between the support frame and the support frame.

Further, the casing further includes: a panel connected to the supporting frame, and an air outlet is opened on the panel.

Further, the casing further includes: an air deflector connected to the panel, and the air deflector is rotatably arranged relative to the panel to adjust the flow direction of the airflow blown from the air outlet.

Furthermore, the indoor unit has a cooling mode and a heating mode. When the indoor unit is in the cooling mode or the heating mode, after the first driving part drives the support part to rotate a preset angle around the horizontal axis, the radial direction of the fan blade can The plane where the cross section is located and the vertical plane are set at an included angle.

According to another aspect of the present invention, an air conditioner is provided, including an indoor unit, and the indoor unit is the above-mentioned indoor unit.

Applying the technical solution of the present invention, by setting the first driving part to drive the fan assembly shell to rotate, such arrangement can change the air supply direction of the fan assembly according to the air outlet mode of the indoor unit, thereby effectively reducing the air supply resistance. For example, when the indoor unit is in the heating mode, the fan assembly can be driven to discharge air obliquely downward, and when the indoor unit is in the cooling mode, the fan assembly can be driven to discharge air obliquely upward. Such setting can effectively reduce the air volume loss of the indoor unit and improve the user experience.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 shows a schematic diagram of the exploded structure of the first embodiment of the indoor unit according to the present invention;

Fig. 2 shows a schematic cross-sectional structural view of a second embodiment of the indoor unit according to the present invention;

Fig. 3 shows a schematic structural diagram of a third embodiment of the indoor unit according to the present invention;

Fig. 4 shows a schematic structural diagram of a fourth embodiment of the indoor unit according to the present invention.

Wherein, the above-mentioned accompanying drawings include the following reference signs:

10. Shell; 11. Bottom plate; 12. Support frame; 13. Panel; 14. Wind deflector;

20. Heat exchanger;

30. Fan assembly;

31. Supporting part; 311. Rotating shaft; 312. Accommodating cavity; 313. Air inlet channel;

32. Fan blades; 33. The second driving part;

40. The first drive unit.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. These example embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of these exemplary embodiments to those of ordinary skill in the art. The thicknesses of layers and regions are indicated, and the same reference numerals are used to designate the same devices, and thus their descriptions will be omitted.

As shown in FIG. 1 to FIG. 4 , according to a specific embodiment of the present application, an indoor unit is provided.

Specifically, as shown in FIGS. 1 and 2 , the indoor unit includes a casing 10 , a heat exchanger 20 , a fan assembly 30 and a first driving part 40 . The heat exchanger 20 is connected to the housing 10 . The fan assembly 30 is movable with the casing 10 , and the fan assembly 30 is used to draw the airflow outside the casing 10 into the casing 10 to exchange heat with the heat exchanger 20 , and then blow it out of the casing 10 . The first driving part 40 is connected to the casing 10 , and the first driving part 40 can drive the fan assembly 30 to rotate at a preset angle, wherein the casing 10 includes a bottom plate 11 and a supporting frame 12 . The support frame 12 and the bottom plate 11 form an annular accommodation space, the support frame 12 is provided with an air inlet around its periphery, and the heat exchanger 20 is located between the air inlet and the air inlet channel 313 .

In this embodiment, the first driving part is set to drive the fan assembly shell to rotate, so that the air supply direction of the fan assembly can be changed according to the air outlet mode of the indoor unit, thereby effectively reducing the air supply resistance. For example, when the indoor unit is in the heating mode, the fan assembly can be driven to discharge air obliquely downward, and when the indoor unit is in the cooling mode, the fan assembly can be driven to discharge air obliquely upward. At the same time, the shell is set as the air outlet frame and the bottom plate, and the air outlet is arranged in the circumferential direction of the air outlet frame. This setting can increase the air intake of the indoor unit, effectively reduce the air loss of the indoor unit, and improve the user's use experience.

Wherein, the fan assembly 30 includes a support part 31 and a fan part. The supporting part 31 is rotatably connected with the casing 10 . The fan part is connected to the support part 31 , and the first driving part 40 is connected to the support part 31 , and the first driving part 40 can drive the support part 31 to rotate to drive the fan part to rotate at a preset angle. Such setting can improve the stability of the fan assembly 30 .

The blower part includes fan blades 32 and a second driving part 33 . The blades 32 are disposed in the supporting portion 31 . The output shaft of the second driving part 33 is connected to the fan blade 32 . The second driving part 33 can drive the blade 32 to rotate. Such setting can further improve the stability and reliability of the fan assembly 30 .

Preferably, the blades 32 are axial flow blades, the second driving part 33 is a DC motor, and the first driving part 40 is a stepping motor. Such setting can improve the air supply efficiency of the indoor unit and improve the accuracy of the rotation angle of the fan assembly.

As shown in FIG. 1 , the supporting part 31 includes a supporting frame, and the outer surface of the supporting frame is provided with a rotating shaft 311, and the supporting frame is rotatably connected to the housing 10 through the rotating shaft 311. The supporting frame has an accommodation cavity 312 for installing the fan part. The sidewalls of the receiving cavity 312 adjacent to the housing 10 are provided with air inlet passages 313 . Such arrangement can make the airflow entering through the casing directly enter the fan through the support frame for air supply.

Preferably, there are multiple accommodating cavities 312, the multiple accommodating cavities 312 are arranged along the length direction of the support frame, and two adjacent accommodating cavities 312 are separated by a partition. Such setting can avoid the interference between the air inlet and outlet of adjacent fans. As shown in Figure 1, an embodiment with two blower sections is shown.

Specifically, the casing 10 includes a bottom plate 11 and a supporting frame 12 . The support frame 12 and the bottom plate 11 form an annular accommodation space, the support frame 12 is provided with an air inlet around its periphery, and the heat exchanger 20 is located between the air inlet and the air inlet channel 313 . Such setting can increase the air intake of the casing. In this embodiment, as shown in FIG. 1 , the figure shows a frame structure in which the side walls of the support frame 12 are all hollowed out.

Preferably, the heat exchanger 20 is an annular structure, and the heat exchanger 20 is located between the support frame 12 and the support frame. Such arrangement can enable the airflow entering from the circumferential direction of the support frame to exchange heat with the heat exchanger. Wherein, the heat exchanger may be an evaporator.

The casing 10 also includes a panel 13 and a wind deflector 14 . The panel 13 is connected with the support frame 12 . An air outlet is provided on the panel 13 . The wind deflector 14 is connected with the panel 13, and the wind deflector 14 is rotatably arranged relative to the panel 13, so as to adjust the flow direction of the airflow blown out from the air outlet. Such setting makes it possible to control the rotation direction of the air guide plate according to the air guide direction of the fan assembly, which can further increase the air supply distance of the indoor unit and improve user experience.

Further, the indoor unit has a cooling mode and a heating mode. When the indoor unit is in the cooling mode or the heating mode, the first driving part 40 drives the support part 31 to rotate a preset angle around the horizontal axis, so that the diameter of the fan blade 32 The plane where the cross section in the direction is located has an included angle with the vertical plane. That is, in this embodiment, the first driving part 40 can drive the entire fan blade to rotate around the horizontal axis, so as to change the air blowing direction of the fan blade.

The indoor unit in the above embodiments can also be used in the technical field of air conditioners, that is, according to another aspect of the present invention, an air conditioner is provided. The air conditioner includes an indoor unit, which is the indoor unit in the above embodiments.

Specifically, the indoor unit with this structure realizes the beneficial effects of the air outlet structure with small wind resistance, large air volume, and low noise. The rearrangement of the heat exchanger improves the heat exchange efficiency of the indoor unit. This indoor unit breaks the structure of the traditional fixed axial fan blades, so that the air outlet direction can be rotated in a small range along with the air guide direction of the air guide plate, which greatly reduces the wind resistance caused by the air guide plate when guiding the air, increases the air volume, reduces the noise.

Use the air guide plate and the fan assembly to realize the upper and lower air outlets, the shower-type air outlet during cooling, and the carpet-type air supply during heating, which enhances the cooling and heating comfort experience of the air conditioner. The new evaporator structure layout matches the new The unique air supply structure solves the problem of uneven utilization of the evaporator of the traditional split air conditioner and improves the utilization efficiency of the evaporator.

The two DC motors and the axial flow blades are fixed on the bottom shell part through the rotatable blade support frame driven by the stepping motor, and then the stepping motor is controlled to drive the blade support frame to rotate up and down to cooperate with the louver deflector to control the wind direction Move around to achieve the purpose of blowing up and down. The evaporator is arranged around the support frame of the fan blades. When it is working, the air is taken in from the surroundings of the air conditioner, and the heat is exchanged evenly through the evaporator to improve the heat exchange efficiency.

As shown in Figure 1, the indoor unit of the wall-mounted air conditioner with up and down air outlets consists of a bottom shell component, an evaporator component, a motor bracket component, a DC motor, a stepping motor, an axial fan blade, a panel component, and an air deflector component. Wherein the bottom shell part is used as the bottom part, and the rest of the parts are all installed on it. The structure of the evaporator part is a rectangular inner circle installed on the bottom shell part, and then the motor bracket assembly is installed. Previously, the motor bracket assembly was pre-installed, and the axial flow fan blade and the DC motor were installed on the motor bracket one by one and fixed. Install the pre-installed motor bracket on the bottom shell part, the right end of the motor bracket is connected with the stepping motor, and the stepping motor drives the motor bracket to rotate. Then install the panel part on the bottom shell part, and finally install the wind deflector assembly on the panel part.

As shown in Figure 2, when the indoor unit is working, the air flow enters the air conditioner inner unit from the surroundings, and after heat exchange by the evaporator, the air is guided by the axial flow fan blades and blown out from between the louver air guide plates on the panel components. Since the wind enters from the surroundings, and the layout of the evaporator is also at the air inlets of the surroundings, the utilization rate of the evaporator is very high. As shown in Figure 3, during cooling, the motor bracket is controlled by the stepping motor to rotate upwards, and at the same time, the wind deflector rotates upwards, thereby realizing the upward air supply of the air conditioner. In the same way, the carpet-type air supply improves the comfort experience during heating.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations". Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

In addition to the above, it also needs to be explained that "one embodiment", "another embodiment", "embodiment" and the like mentioned in this specification refer to specific features, structures or Features are included in at least one embodiment generally described in this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure or characteristic is described in combination with any embodiment, it is claimed that implementing such feature, structure or characteristic in combination with other embodiments also falls within the scope of the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (11)

1. a kind of indoor unit characterized by comprising

Shell (10)；

Heat exchanger (20), the heat exchanger (20) are connected with the shell (10)；

Fan assembly (30), the fan assembly (30) and the shell (10) mobilizable setting, the fan assembly (30) After the air-flow of the shell (10) outside is sucked the interior heat exchange with the heat exchanger (20) progress of the shell (10), then blow The shell (10) is outside out；

First driving portion (40), first driving portion (40) are connected with the shell (10), first driving portion (40) The fan assembly (30) rotation predetermined angle can be driven it is arranged；

Wherein, the shell (10) includes:

Bottom plate (11)；

Support frame (12), the support frame (12) and the bottom plate (11) enclose and are set as annular accommodation space, the support frame (12) Circumferential direction be provided with air inlet, the heat exchanger (20) is between the air inlet and the air intake passage (313).

2. indoor unit according to claim 1, which is characterized in that the fan assembly (30) includes:

Support portion (31), the support portion (31) are rotatably coupled with the shell (10)；

Blower portion, the blower portion are connected with the support portion (31), first driving portion (40) and the support portion (31) it is connected, first driving portion (40) can drive the support portion (31) rotation to drive described in the blower portion rotation Predetermined angle.

3. indoor unit according to claim 2, which is characterized in that the blower portion includes:

Fan blade (32), the fan blade (32) are set in the support portion (31)；

The output shaft of second driving portion (33), second driving portion (33) is connected with the fan blade (32), and described second drives Dynamic portion (33) can drive the fan blade (32) to rotate.

4. indoor unit according to claim 3, which is characterized in that

The fan blade (32) is axial-flow leaf, and/or

Second driving portion (33) is direct current generator, and/or

First driving portion (40) is stepper motor.

5. indoor unit according to claim 2, which is characterized in that the support portion (31) includes support frame, the support The outer surface of frame is provided with shaft (311), and support frame as described above is rotationally connected by the shaft (311) and the shell (10) Connect, support frame as described above has an accommodating chamber (312) for installing the blower portion, the accommodating chamber (312) with the shell (10) adjacent side wall is provided with air intake passage (313).

6. indoor unit according to claim 5, which is characterized in that the accommodating chamber (312) is multiple, multiple receivings Chamber (312) is arranged along the length direction of support frame as described above, is separated by partition between the accommodating chamber (312) of adjacent two.

7. indoor unit according to claim 1, which is characterized in that the heat exchanger (20) is ring structure, the heat exchange Device (20) is between the support frame (12) and support frame as described above.

8. indoor unit according to claim 1, which is characterized in that the shell (10) further include:

Panel (13), the panel (13) are connected with the support frame (12), offer air outlet on the panel (13).

9. indoor unit according to claim 8, which is characterized in that the shell (10) further include:

Wind deflector (14), the wind deflector (14) are connected with the panel (13), the relatively described panel of wind deflector (14) (13) it can be rotatably set, to adjust the flow direction for blowing out air-flow from the air outlet.

10. indoor unit according to claim 4, which is characterized in that the indoor unit has refrigeration mode and heating mode, When the indoor unit is in the refrigeration mode or heating mode, first driving portion (40) drives the support portion (31) After the predetermined angle is rotated around trunnion axis, plane where the cross section of the radial direction of the fan blade (32) and vertical can be made Face is arranged at an angle.

11. a kind of air conditioner, including indoor unit, which is characterized in that the indoor unit is described in any one of claims 1 to 10 Indoor unit.