CN210141636U - An air duct housing, an upper air duct assembly and an air conditioner - Google Patents

Abstract

The utility model provides an air duct housing, an upper air duct assembly and an air conditioner, which relate to the technical field of air conditioners. The air duct housing includes a first fan slot, a first air duct communicated with the first fan slot, a second fan slot and a second air duct communicated with the second fan slot, and the length of the first air duct is larger than that of the second fan slot. The length dimension of the air duct, the diameter of the air outlet of the first air duct is smaller than the diameter of the air outlet of the second air duct. For an air-conditioning indoor cabinet with two fans, when the installation positions of the two fans are different, but the positions of the air outlets on the front panel of the cabinet are the same, you can adjust the air duct parameters corresponding to the two fans so that the first air The flow rate per unit area of the air outlet of the duct is the same as the flow rate per unit area of the air outlet of the second air duct, so that the air outlet volume of the corresponding air outlet on the front panel of the cabinet is the same, which is conducive to the uniform air outlet, improves the air outlet efficiency of the air conditioner, and improves the user experience.

Description

An air duct housing, an upper air duct assembly and an air conditioner

technical field

The utility model relates to the technical field of air conditioners, in particular to an air duct housing, an upper air duct assembly and an air conditioner.

Background technique

Air conditioning refers to equipment that adjusts and controls the temperature, humidity and other parameters of the ambient air in buildings or structures. Common ones include wall-mounted air conditioners, vertical cabinet air conditioners, window air conditioners and ceiling-mounted air conditioners. Among them, the vertical cabinet air conditioner supplies air through the air outlet, and the specific structure of the vertical cabinet air conditioner is designed according to the principle that the cold air falls and the hot air rises.

However, in the existing vertical cabinet type air conditioner, the efficiency of the air outlet at the top of the front panel cannot meet the needs of users.

Utility model content

The problem solved by the utility model is how to improve the air outlet efficiency of the top of the front panel for the existing vertical cabinet type air conditioner.

In order to solve the above problems, the present invention provides an air duct housing, which includes a first fan groove, a first air duct communicated with the first fan groove, a second fan groove, and a second fan groove communicated with the second fan groove. For the second air duct, the length dimension of the first air duct is larger than the length dimension of the second air duct, and the diameter dimension of the air outlet of the first air duct is smaller than the diameter dimension of the air outlet of the second air duct.

For an air-conditioning indoor cabinet with two fans, when the installation positions of the two fans are different but the positions of the air outlets on the front panel of the cabinet are the same, you can adjust the air duct parameters corresponding to the two fans so that the cabinet can move forward. The air volume of the corresponding air outlet of the panel is the same, thereby improving the air outlet efficiency of the air conditioner.

Further, the ratio of the length dimension of the first air duct to the length dimension of the second air duct is 2-3.

Further, the ratio of the diameter of the air outlet of the first air duct to the diameter of the air outlet of the second air duct is 0.7-0.9.

On the premise that the parameters of the two fans installed in the air duct shell are the same, the parameter relationship between the first air duct and the second air duct is adjusted so that the flow rate per unit area of the air outlet of the first air duct and the The flow rate per unit area of the air outlet is the same, which is beneficial to the uniformity of the air outlet, thereby improving the air outlet efficiency.

Further, the air outlet of the first air duct and the air outlet of the second air duct form an air outlet structure, and the distance between the first fan slot and the end face of the air outlet structure is greater than that of the second air outlet. The distance between the fan slot and the end face of the air outlet structure.

The relative positional relationship between the first fan slot and the second fan slot opened on the air duct housing is specifically limited, and the design is reasonable and the structure is compact.

Further, the first air duct includes a first straight section close to its air outlet, the second air duct includes a second straight section close to its air outlet, and the center axis of the first straight section is aligned with the first straight section. The central axes of the two straight sections are parallel.

Specifically defining the relative relationship between the first straight section of the first air duct and the second straight section of the second air duct on the air duct housing is beneficial to divert the wind from different air ducts in the air duct housing to the corresponding air of the air outlet assembly. In the duct, it is finally blown out evenly from the top of the front panel of the air-conditioning indoor cabinet, which is convenient for processing and production, and also facilitates the assembly of the air duct shell and the air outlet assembly.

The utility model also provides an upper air duct assembly including the above air duct housing.

Further, the upper air duct assembly further includes a first fan and a second fan, the first fan is installed in the first fan slot, the second fan is installed in the second fan slot, the first fan The output power of the fan is equal to the output power of the second fan.

Under the premise that the output power of the first fan is the same as the output power of the second fan, the parameters of the first air duct and the second air duct are adjusted in the above-mentioned manner, so that the flow rate per unit area of the air outlet of the first air duct is the same as that of the first air duct. The flow rate per unit area of the air outlet of the second air duct is the same, and the same two fans are used, which is conducive to assembly.

The utility model also provides an air conditioner, which includes the above-mentioned upper air duct assembly or the above-mentioned air duct housing.

Further, the air conditioner further includes a front panel, the top of the front panel is provided with a first air outlet and a second air outlet, the first air duct is used for communicating with the first air outlet, and the first air outlet is used to communicate with the first air outlet. The second air duct is used to communicate with the second air outlet, so that the air outlet volume of the first air outlet is the same as the air outlet volume of the second air outlet.

The structure of the front panel that is matched with the upper air duct assembly or the air duct housing is defined. Through the parameter relationship between the first air duct and the second air duct in the air duct housing, the air volume of the first air outlet on the top of the front panel is determined. The air volume is the same as that of the second air outlet, which increases the air outlet area on the top of the front panel of the air conditioner, and makes the air outlet even and improves the user experience.

Further, the first air outlet and the second air outlet are arranged side by side in a horizontal direction.

By limiting the positional relationship between the first air outlet and the second air outlet to be arranged side by side, the air outlet heights at the top of the front panel are the same, and the air outlet is uniform, which improves user comfort and improves the air outlet efficiency at the top of the front panel.

Description of drawings

1 is a schematic structural diagram of an air duct housing provided in Embodiment 1;

Figure 2 is a top view of the air duct housing;

FIG. 3 is a schematic diagram of the upper air duct assembly provided in Embodiment 2 from a first perspective;

4 is a cross-sectional view of the upper air duct assembly from a second perspective;

5 is an exploded schematic view of an indoor cabinet in the air conditioner provided by Embodiment 3;

Fig. 6 is the schematic diagram of the front panel in Fig. 5;

7 is a schematic diagram of the air path of the air conditioner under heating conditions;

FIG. 8 is a schematic diagram of the air path of the air conditioner under refrigeration conditions.

Description of reference numbers:

100-air duct housing; 10-first fan slot; 11-second fan slot; 12-first air duct; 125-first straight section; 13-second air duct; 135-second straight section;15 - Air outlet structure; 200 - upper air duct assembly; 21 - first fan; 215 - first motor; 22 - second fan; 225 - second motor; 300 - air conditioner; 30 - front panel; 303 - first outlet Air outlet; 305 - second air outlet; 307 - lower air outlet; 31 - air outlet assembly; 32 - lower air duct assembly; 33 - heat exchanger.

Detailed ways

Example 1

In this embodiment, centrifugal fan blades are used as the power source. According to the structural characteristics of the upper and lower air outlets, on the premise of the upper and lower air outlets, an air duct structure with double air outlets at the top is designed to achieve the same air output from the two air outlets at the top. , and can avoid blowing the face directly when the wind is out, improve the comfort of the user, and then improve the cooling and heating efficiency.

Specifically, an air duct housing 100 is provided, which is used in an air-conditioning indoor cabinet. As the base of the upper air duct assembly 200, the air duct housing 100 is provided with two air ducts and two fan slots. The fan slot is used for the fixed installation of two fans. On the premise that the parameters of the two fans are the same, by adjusting the size relationship between the two air ducts, the air volume at the upper air outlet of the air-conditioning indoor cabinet is the same, and the output is the same. The air is uniform, which improves the user experience, thereby improving the cooling and heating efficiency.

In order to make the above objects, features and advantages of the present technology more obvious and easy to understand, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of an air duct housing 100 provided in this embodiment, and FIG. 2 is a top view of the air duct housing 100 , please refer to FIGS. 1 and 2 .

The air duct housing 100 has a rectangular shape with long sides and wide sides, and is vertically installed in the air-conditioning indoor cabinet. The air duct housing 100 includes a first fan slot 10 and communicates with the first fan slot 10 The first air duct 12 , the second fan slot 11 and the second air duct 13 communicated with the second fan slot 11 , wherein the extending direction of the first air duct 12 and the extending direction of the second air duct 13 are the same.

The first fan slot 10 and the second fan slot 11 are arranged along the length direction of the air duct housing 100 , and the length dimension of the first air duct 12 communicating with the first fan slot 10 is greater than the length dimension of the first air duct 12 communicating with the second fan slot 11 . The length dimension of the second air duct 13 .

On the premise that the output power of the first fan 21 installed in the first fan slot 10 and the output power of the second fan 22 installed in the second fan slot 11 are the same, the loss of the output air flowing through the first air duct 12 is greater than In order to ensure that the air volume per unit area at the outlet of the first air duct 12 and the air volume per unit area at the outlet of the second air duct 13 are equal or nearly equal, the output air volume of the second air duct 13 is lost, and the output of the air conditioner is improved. Wind efficiency, in this embodiment, the length of the first air duct 12 is greater than the length of the second air duct 13, and/or the diameter of the air outlet of the first air duct 12 is smaller than the diameter of the air outlet of the second air duct 13 , please refer to Figure 2, Figure 3, please refer to Figure 2.

Optionally, the ratio of the length dimension L1 of the first air duct 12 to the length dimension L2 of the second air duct 13 is 2˜3.

Optionally, the ratio of the diameter dimension d1 of the air outlet of the first air duct 12 to the diameter dimension d2 of the air outlet of the second air duct 13 is selected to be 0.7-0.9.

In other words, the diameter of the air outlet of the first air duct 12 is d1, and the diameter of the air outlet of the second air duct 13 is d2, so 0.7d2≤d1≤0.9d2.

After many calculations and tests by the utility model person, in this embodiment, d1 is selected as 80mm, and d2 is selected as 90mm. It can be understood that, in other embodiments, specific size adjustments can be made according to actual needs.

Preferably, the ratio of the length L1 of the first air duct 12 to the length L2 of the second air duct 13 is 2.5, and the diameter dimension d1 of the air outlet of the first air duct 12 and the diameter dimension d2 of the air outlet of the second air duct 13 is 2.5. When the ratio is 0.8, when the air duct housing 100 is installed in the air conditioner indoor cabinet, the air volume of the two air outlets on the top of the front panel 30 of the air conditioner indoor cabinet can be the same.

On the premise that the parameters of the two fans installed in the air duct housing 100 are the same, the parameter relationship between the first air duct 12 and the second air duct 13 is adjusted so that the flow rate per unit area of the air outlet of the first air duct 12 and The flow rate per unit area of the air outlet of the second air duct 13 is the same, which is beneficial to the uniformity of the air outlet, thereby improving the air outlet efficiency.

The air outlet of the first air duct 12 and the air outlet of the second air duct 13 form an air outlet structure 15. The air outlet structure 15 includes an end face located at the top. The first fan slot 10 and the second fan slot 11 are along the air duct housing 100. vertical arrangement, the air outlet structure 15 is located at one end of the air duct housing 100, so the distance between the first fan slot 10 and the end face of the air outlet structure 15 is greater than the distance between the second fan slot 11 and the end face of the air outlet structure 15 The distance between, when the air duct housing 100 is installed in the air-conditioning indoor cabinet and is in a vertical state, the first fan slot 10 is located below the second fan slot 11, and the first air duct communicated with the first fan slot 10 12 extends upward to the air outlet structure 15, and the second air duct 13 communicating with the second fan slot 11 also extends upward to the air outlet structure 15, which is reasonable in design and compact in structure.

Optionally, the air outlet of the first air duct 12 and the air outlet of the second air duct 13 are arranged flush, and it is convenient to cooperate with the air outlet assembly 31 when it is installed in the air conditioner indoor cabinet, which is convenient for processing and production, and is also convenient for the air duct. Assembly of the housing 100 and the air outlet assembly 31 .

Of course, it should be understood that in other embodiments, the air outlet of the first air duct 12 and the air outlet of the second air duct 13 may not be flush. For example, when the air outlet structure 15 is designed to be stepped, The air outlet assembly 31 matched with the air duct housing 100 is also designed as a stepped structure; when the air outlet structure 15 is designed as an inclined structure, the air outlet assembly 31 matched with the air duct housing 100 is also designed as an inclined structure, as long as the It is sufficient that the air duct housing 100 can communicate with the top air outlet of the front panel 30 of the air conditioner through the air outlet assembly 31 .

In this embodiment, in order to facilitate processing and assembly, the air outlet of the first air duct 12 and the air outlet of the second air duct 13 are flush with each other.

From the first fan slot 10 to the air outlet direction of the first air duct 12 , the first air duct 12 includes a first curved section and a first straight section 125 , wherein the first curved section is used for the outlet of the first fan slot 10 . A smooth transition is made between the wind section and the first straight section 125 to reduce air volume loss.

The second air duct 13 includes a second straight section 135, and the second straight section 135 is close to the air outlet of the second air duct 13, wherein the central axis of the first straight section 125 and the central axis of the second straight section 135 are parallel to each other, It is beneficial to divert the wind from different air ducts in the air duct housing 100 to the corresponding air ducts of the air outlet assembly 31, and finally blow out evenly from the top of the front panel 30 of the air-conditioning indoor cabinet.

The air duct housing 100 provided in this embodiment has a simple structure, and is designed with a first air duct 12 and a second air duct 13 for the upper air outlet of the air conditioner indoor cabinet. Adjust the length dimension relationship between the first air duct 12 and the second air duct 13 and the diameter dimension relationship at the corresponding air outlet, so that the flow rate per unit area at the air outlet of the first air duct 12 and the air outlet of the second air duct 13 are The flow rate per unit area is the same, so that the final air volume blown from the upper air outlet on the top of the front panel 30 is the same, and the structure is compact, the design is reasonable, the air outlet is uniform, and the user experience is improved. Thermal conditions are conducive to improving work efficiency.

Example 2

Embodiment 2 provides an upper air duct assembly 200, including the air duct housing 100 provided in Embodiment 1, FIG. 3 is a schematic diagram of the upper air duct assembly 200 from a first perspective, and FIG. 4 is a second perspective view of the upper air duct assembly 200 Sectional view, detailed as follows:

In addition to the air duct housing 100, the upper air duct assembly 200 further includes a first fan 21 and a second fan 22, wherein the first fan 21 is installed in the first fan slot 10 of the air duct housing 100, and the second fan 22 is installed in the In the second fan slot 11 of the air duct housing 100 , in this embodiment, the output power of the first fan 21 and the output power of the second fan 22 are the same.

Specifically, the first fan 21 includes a first fan blade and a first motor 215 detachably connected to the first fan blade, and the second fan 22 includes a second fan blade and a second motor 225 detachably connected to the second fan blade , the diameter of the first fan blade is the same as the diameter of the second fan blade, the height of the first fan blade and the height of the second fan blade are the same, and the power of the first motor 215 and the power of the second motor 225 are the same, so as to realize the first The parameters of the first fan 21 corresponding to the air duct 12 are equal to the parameters of the second fan 22 corresponding to the second air duct 13. Using the same two fans reduces the number of parts and facilitates production and assembly.

That is to say, under the premise that the parameters of the first fan 21 and the parameters of the second fan 22 are equal, by adjusting the length ratio of the first air duct 12 and the second air duct 13 and/or the first air duct 12 The ratio of the diameter of the air outlet to the air outlet of the second air duct 13 is used to obtain the same air output from the two air outlets on the top of the front panel 30 of the air conditioner indoor cabinet, so as to achieve uniform air output and improve user experience.

Example 3

Embodiment 3 provides an air conditioner 300, including the air duct housing 100 provided in Embodiment 1, or the upper air duct assembly 200 provided in Embodiment 2.

FIG. 5 is an exploded schematic diagram of the indoor cabinet of the air conditioner 300, FIG. 6 is a schematic diagram of the front panel 30, FIG. 7 is a schematic diagram of an air path in a heating mode, and FIG. 8 is a schematic diagram of an air path in a cooling mode. As shown in Figure 8, the specific description is as follows:

The indoor cabinet has an upper and lower air outlet structure 15, and also includes an air outlet assembly 31, a lower air duct assembly 32, a front panel 30, a heat exchanger 33 and other components.

The upper air duct assembly 200 corresponds to the upper air outlet on the top of the front panel 30 through the air outlet assembly 31 , the lower air duct assembly 32 is located below the upper air duct assembly 200 , and the lower air duct assembly 32 and the lower air outlet 307 at the bottom of the front panel 30 Corresponding.

Specifically, the top of the front panel 30 is provided with a first air outlet 303 and a second air outlet 305, the bottom of the front panel 30 is provided with a lower air outlet 307, and the first air outlet 303 and the second air outlet 305 on the top are side by side along the horizontal direction The setting ensures that the air outlets at the top of the front panel 30 are at the same height and the air is evenly distributed, which enhances comfort and improves user experience.

The air outlet assembly 31 is arranged above the upper air duct assembly 200, and is provided with two connecting air ducts. The air outlet of the first air duct 12 communicates with the first air outlet 303 on the top of the front panel 30 through one of the connecting air ducts. The air outlet of the second air duct 13 is communicated with the second air outlet 305 on the top of the front panel 30 through another connecting air duct. Since the flow rate per unit area of the air outlet of the first air duct 12 and the flow rate per unit area of the air outlet of the second air duct 13 Therefore, the air volume of the first air outlet 303 at the top of the front panel 30 is the same as that of the second air outlet 305, which increases the air outlet area at the top of the front panel 30 of the air conditioner, and makes the air outlet uniform, improving user experience. .

The air conditioner 300 has two working modes: heating and cooling. During heating, the lower air duct assembly 32 is opened corresponding to the lower air outlet 307 at the bottom of the front panel 30, and the hot air entering the air conditioner through the heat exchanger 33 is partially passed through the upper air duct. The first air duct 12 and the second air duct 13 of the assembly 200 enter the air outlet assembly 31, and then blow into the room from the first air outlet 303 and the second air outlet 305 on the top of the front panel 30, and another part of the hot air passes through the lower air duct assembly. 32. Blow into the room through the lower air outlet 307 at the bottom of the front panel 30.

During cooling, the lower air outlet 307 at the bottom of the front panel 30 corresponding to the lower air duct assembly 32 is closed, and the cold air entering the air conditioner through the heat exchanger 33 passes through the first air duct 12 and the second air duct 13 of the upper air duct assembly 200. Enter the air outlet assembly 31, and then blow into the room from the first air outlet 303 and the second air outlet 305 on the top of the front panel 30.

The air conditioner indoor cabinet adopts independent air supply from the upper and lower air ducts, and the upper and lower motors operate logic. For the top air outlet, the double air outlet air supply structure is adopted to achieve the same air supply volume and uniform air supply from the two air outlets at the top of the front panel 30. , which is conducive to quickly changing the room temperature, improving user experience, and improving heating and cooling efficiency.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be based on the scope defined by the claims.

Claims (10)

1. The utility model provides an air duct shell, its characterized in that, including first fan groove (10), with first wind channel (12), second fan groove (11) of first fan groove (10) intercommunication and with second wind channel (13) of second fan groove (11) intercommunication, the length dimension in first wind channel (12) is greater than the length dimension in second wind channel (13), the air outlet diameter size in first wind channel (12) is less than the air outlet diameter size in second wind channel (13).

2. The air duct housing according to claim 1, characterized in that the ratio of the length dimension of the first air duct (12) to the length dimension of the second air duct (13) is 2-3.

3. The air duct casing according to claim 1 or 2, wherein the ratio of the diameter size of the air outlet of the first air duct (12) to the diameter size of the air outlet of the second air duct (13) is 0.7-0.9.

4. The air duct casing according to claim 1, wherein the air outlet of the first air duct (12) and the air outlet of the second air duct (13) form an air outlet structure (15), and a distance between the first fan groove (10) and an end surface of the air outlet structure (15) is greater than a distance between the second fan groove (11) and an end surface of the air outlet structure (15).

5. The air duct casing according to claim 1, characterized in that the first air duct (12) comprises a first straight section (125) near its air outlet, the second air duct (13) comprises a second straight section (135) near its air outlet, the central axis of the first straight section (125) being parallel to the central axis of the second straight section (135).

6. An upper duct assembly, characterized by comprising a duct housing (100) according to any one of claims 1-5.

7. The upper duct assembly of claim 6, characterized in that the upper duct assembly (200) further comprises a first fan (21) and a second fan (22), the first fan (21) being mounted to the first fan tray (10), the second fan (22) being mounted to the second fan tray (11), the output power of the first fan (21) and the output power of the second fan (22) being equal.

8. An air conditioner, characterized by comprising an upper duct assembly (200) according to claim 6 or 7, or a duct housing (100) according to any one of claims 1-5.

9. The air conditioner according to claim 8, wherein the air conditioner (300) further comprises a front panel (30), a first air outlet (303) and a second air outlet (305) are formed in the top of the front panel (30), the first air duct (12) is used for being communicated with the first air outlet (303), and the second air duct (13) is used for being communicated with the second air outlet (305), so that the air output of the first air outlet (303) is the same as the air output of the second air outlet (305).

10. The air conditioner according to claim 9, wherein the first outlet vent (303) and the second outlet vent (305) are arranged side by side in a horizontal direction.

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