Air outlet window, indoor fan, indoor unit and air conditioner having the same

Abstract

The present invention provides an air outlet window and an indoor fan, indoor unit, and air conditioner having the same. The air outlet window includes an inner air guide ring, air outlet window ribs, and an outer air guide ring connected in sequence from the inside to the outside. An air outlet is formed between multiple air outlet window ribs. The connecting sleeve of the indoor fan motor assembly is integrally assembled with the inner air guide ring at its front end. The fan impeller is rotatably assembled at the rear end of the connecting sleeve and is arranged opposite to the air outlet window ribs. The spiral direction of the air outlet window ribs is opposite to the spiral direction of the fan impeller, and the inner curved surface of the air outlet window ribs is densely covered with protruding wind dispersion structures. Through the air outlet window and the indoor fan, indoor unit, and air conditioner having the same described in the present invention, the heat exchange air flow can be ensured to become a soft wind with low speed, high divergence, and high stroke after being blown out through the air outlet window.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air outlet window and an indoor fan, an indoor unit and an air conditioner having the same. Background Art

[0002] In the existing technology, the air outlet of cabinet air conditioners is mostly still guided through the air guide plate, which will result in low air outlet comfort. In order to improve the air outlet experience, a feasible way is to blow the heat exchange air flow gathered by the indoor fan out of the mesh of the air outlet panel of the air conditioner in a low-speed, high-divergence and high-stroke manner.

[0003] However, the above feasible methods still have high design requirements for the air outlet windows. After the heat exchange air flow is blown out through the air outlet windows, it must be ensured to become a soft wind with low speed, high divergence and high stroke. However, the existing air outlet windows usually find it difficult to meet the above design requirements. Summary of the Invention

[0004] In view of this, the technical problem to be solved by the present invention is: first, to provide an air outlet window so that the heat exchange air flow can be ensured to become a soft wind with low speed, high divergence and high stroke after being blown out through the air outlet window.

[0005] In order to solve the technical problem of the first aspect mentioned above, the present invention provides an air outlet window, including an inner air guide ring, air outlet window ribs, and an outer air guide ring connected in sequence from the inside to the outside, and an air outlet is formed between multiple air outlet window ribs. The connecting sleeve of the indoor fan motor assembly is integrally assembled with the inner air guide ring at its front end, and the fan impeller is rotatably assembled at the rear end of the connecting sleeve and is arranged opposite to the air outlet window ribs. The spiral direction of the air outlet window ribs is opposite to the spiral direction of the fan impeller, and the inner arc surface of the air outlet window ribs is densely covered with protrusion wind dispersion structures.

[0006] Through the air outlet window described in the present invention, the heat exchange air flow can be ensured to become a low-speed, high-divergence, and high-stroke soft wind after being blown out through the air outlet window, wherein the convex wind dispersion structure is used to ensure that the air outlet range of the soft wind of the cabinet air conditioner is increased.

[0007] Preferably, the convex block wind dissipation structure includes regular convex blocks with sharp corners and / or irregular convex blocks with sharp corners.

[0008] The convex block wind dispersing structure may be composed of regular convex blocks and / or irregular convex blocks, but both the regular convex blocks and the irregular convex blocks must have sharp corners to ensure a high wind dispersing effect of the convex block wind dispersing structure.

[0009] Preferably, the air outlet window ribs are evenly distributed on the air outlet window, and the arc length L of any air outlet window rib is equal and is 1.1~1.8R, where R=1 / 2*(R1-R2), R1 is the inner diameter of the outer air guide ring, and R2 is the outer diameter of the inner air guide ring.

[0010] It can not only ensure the uniform air flow of the heat exchange air, but also fully meet and take into account the low speed, high divergence and high stroke requirements of the soft wind.

[0011] Preferably, the angles between the inner arc surface and the vertical plane of any one of the air outlet window ribs are equal and range from 90° to 150°.

[0012] When the above-mentioned angle is greater than 90°, all the air outlet window ribs, in addition to having a spiral structure opposite to the spiral direction of the fan impeller, will also continue to be inclined to one side along the spiral air outlet direction of the heat exchange airflow, that is, the air outlet window ribs will have a double helix structure, which is conducive to further improving the high stroke of the soft wind.

[0013] Preferably, a second air outlet window rib is connected between the inner air guide ring and the outer air guide ring, and a threading groove is formed between the inner arc surface of the second air outlet window rib and the outer arc surface of one of the air outlet window ribs.

[0014] The fan motor will be built into the connecting sleeve to drive the fan impeller to rotate, and the wire connection between the external power supply and the fan motor can enter the connecting sleeve through the wire groove, which will greatly facilitate the laying and fixing of the wires.

[0015] Preferably, the maximum normal spacing B of any regular protrusion and / or irregular protrusion densely distributed on any one of the air outlet window ribs from the corresponding inner arc surface is (0.3~3)*A, and B is also equal to (0.1~0.2)*D, where A is used to characterize the average thickness of the air outlet window rib, and D is the normal spacing between two adjacent air outlet window ribs.

[0016] By setting the above conditions, the maximum height of both regular and irregular bumps will be limited to an appropriate range, which is conducive to fully meeting and taking into account the low speed, high divergence and high stroke requirements of soft wind.

[0017] Preferably, along the rear end to the front end of the air outlet window rib, the volume of the bumps of the bump air dissipation structure increases gradually and the distribution density decreases gradually.

[0018] The successive setting of the bump volume and distribution density of the bump dispersion structure fully meets the high divergence requirements of the soft wind to the greatest extent, while also further taking into full account the high stroke requirements of the soft wind, ensuring that the overall quality of the soft wind will be better.

[0019] The technical problem to be solved by the present invention is also: the second aspect provides an indoor fan, and / or the third aspect provides an indoor unit, and / or the fourth aspect provides an air conditioner, so that the heat exchange air flow can be ensured to become a low-speed, high-divergence, high-stroke soft wind after being blown out through the air outlet window.

[0020] In order to solve the above-mentioned technical problem in the second aspect, the present invention provides an indoor fan having an air outlet window as described in any embodiment of the first aspect.

[0021] In order to solve the technical problem in the third aspect mentioned above, the present invention provides an indoor unit having an air outlet window as described in any embodiment of the first aspect.

[0022] In order to solve the technical problem in the fourth aspect mentioned above, the present invention provides an air conditioner having an air outlet window as described in any embodiment of the first aspect.

[0023] Compared with the prior art, the air outlet window and the indoor fan, indoor unit, and air conditioner having the same according to the present invention have the following beneficial effects:

[0024] This ensures that the heat exchange airflow becomes a soft wind with low speed, high divergence and high stroke after being blown out through the air outlet window. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of an air outlet window (integrally assembled with a connecting sleeve) described in Example 1 of the present invention;

[0027] Figure 2 This is a schematic diagram of the main structure of an air outlet window (integrally assembled with a connecting sleeve) described in Example 1 of the present invention.

[0028] Description of reference numerals:

[0029] 1-inner air guide ring, 2-air outlet window rib, 21-inner arc surface, 22-outer arc surface, 3-outer air guide ring, 4-air outlet, 5-connecting sleeve, 6-bump wind dispersion structure, 7-second air outlet window rib, 8-wire groove. DETAILED DESCRIPTION

[0030] To make the above-mentioned objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments of the present invention described herein only constitute part of the embodiments of the present invention, which are only used to explain the present invention and do not constitute a limitation of the present invention. In the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0031] Example 1

[0032] like Figure 1-2 As shown, the present invention provides an air outlet window, comprising an inner air guide ring 1, air outlet window ribs 2, and an outer air guide ring 3 connected in sequence from the inside to the outside, an air outlet 4 is formed between the multiple air outlet window ribs 2, a connecting sleeve 5 of the indoor fan motor assembly is integrally assembled with the inner air guide ring 1 at its front end, a fan impeller is rotatably assembled at the rear end of the connecting sleeve 5 and is arranged opposite to the air outlet window ribs 2, a spiral direction of the air outlet window ribs 2 is opposite to the spiral direction of the fan impeller, and the inner arc surface 21 of the air outlet window ribs 2 is densely covered with convex wind dispersion structures 6.

[0033] Specifically, the indoor fan motor assembly is usually located in a relatively closed space. A preferred method is to assemble the fan motor assembly of the indoor fan and the air outlet window into an integral body and then fix it to the air duct mounting plate. Thus, the air duct mounting plate located at the front end of the indoor heat exchanger can form a relatively closed space with a more airtight structure. After the fan impeller rotates, the heat exchange airflow in the relatively closed space is blown directly from the fan impeller to the air outlet window in a face-to-face spiral around the outer periphery of the connecting sleeve 5 (see the details). Figure 1 The spiral blowing direction is shown by the arrow in the middle), and then when the spiral heat exchange airflow flows through the air outlet 4 and the inner arc surface 21 to continue to diffuse to the front end at the air outlet window, it will be further dispersed by the convex wind dispersion structure 6 densely distributed on the inner arc surface 21. As a result, the heat exchange airflow can be ensured to become a low-speed, high-divergence, and high-stroke soft wind after being blown out through the air outlet window, wherein the convex wind dispersion structure 6 is used to ensure that the air outlet range of the soft wind of the cabinet air conditioner is increased.

[0034] Preferably, the convex block wind dissipation structure 6 includes regular convex blocks with sharp corners and / or irregular convex blocks with sharp corners.

[0035] Specifically, the bump wind-dispersing structure 6 can be composed of regular bumps and / or irregular bumps, but both the regular bumps and the irregular bumps must have edges and corners to ensure the high wind-dispersing effect of the bump wind-dispersing structure 6, wherein the regular bumps can be, for example, diamond-shaped, triangular, etc.

[0036] Preferably, the air outlet window ribs 2 are evenly distributed on the air outlet window, and the arc length L of any air outlet window rib 2 is equal and is 1.1~1.8R, where R=1 / 2*(R1-R2), R1 is the inner diameter of the outer air guide ring 3, and R2 is the outer diameter of the inner air guide ring 1.

[0037] Specifically, if the air outlet ribs 2 are evenly distributed spiral structures, their arc length L must be greater than the normal spacing R between the outer air guide ring 3 and the inner air guide ring 1. The air outlet ribs 2 can be easily divided into an inner curved surface 21 and an outer curved surface 22 according to the spiral direction. Since the thickness dimension A of the air outlet ribs 2 is relatively small, meaning that the arc lengths of the inner and outer curved surfaces 21 and 22 are practically equal, L here specifically refers to the arc length or average arc length of the air outlet ribs 2. When L is equal and ranges from 1.1 to 1.8R, uniform heat exchange airflow can be ensured while fully meeting and taking into account the low-speed, high-divergence, and high-range requirements of gentle wind.

[0038] As a further preferred example of the present invention, at the front end of the air outlet window, the angle K1 between the inner arc surface 21 and the inner air guide ring 1 is equal and ranges from 60° to 80°, and the angle K2 between the inner arc surface 21 and the outer air guide ring 3 is also equal and ranges from 120° to 160°.

[0039] Of course, it should be noted that the thickness of the air outlet window rib 2 can also decrease gradually from the inside to the outside. For example, if the maximum thickness of the air outlet window rib 2, i.e., the thickness at the inner air guide ring 1, is C, and the decreasing coefficient is 1 to 0.5, then the average thickness of the air outlet window rib 2, A, can still be obtained as follows: 0.75*C. Unless otherwise specified in the present invention, A represents the average thickness of the air outlet window rib 2.

[0040] Preferably, the included angles between the inner arc surface 21 of any one of the air outlet window ribs 2 and the vertical plane are equal and range from 90° to 150°.

[0041] For details, see Figure 1 As for the spiral blowing direction indicated by the middle arrow, when the above-mentioned angle is greater than 90°, all the air outlet window ribs 2, in addition to having a spiral structure opposite to the spiral direction of the fan impeller, will also continue to be inclined to one side along the spiral air outlet direction of the heat exchange airflow, that is, the air outlet window ribs 2 will have a double helix structure, which is beneficial to further improve the high stroke of the soft wind.

[0042] As one of the preferred examples of the present invention, the protrusion wind-dispersing structure 6 is arranged only on the inner arc surface 21 of the air outlet window rib 2, that is, when the air outlet window rib 2 is a double helix structure, the protrusion wind-dispersing structure 6 does not need to be arranged on the outer arc surface 22 of the air outlet window rib 2.

[0043] Preferably, a second air outlet window rib 7 is connected between the inner air guide ring 1 and the outer air guide ring 3 , and a threading groove 8 is formed between the inner arc surface of the second air outlet window rib 7 and the outer arc surface of one of the air outlet window ribs 2 .

[0044] Specifically, the fan motor will be built into the connecting sleeve 5 to drive the fan impeller to rotate, and the wire connection between the external power supply and the fan motor can enter the connecting sleeve 5 through the wire groove 8, which will greatly facilitate the laying and fixing of the wires.

[0045] Preferably, the maximum normal spacing B of any regular protrusion and / or irregular protrusion densely distributed on any one of the air outlet window ribs 2 from the corresponding inner arc surface 21 is (0.3~3)*A, and B is also equal to (0.1~0.2)*D, where D is the normal spacing between two adjacent air outlet window ribs 2.

[0046] Specifically, the value of A, as described above, can be used to characterize the average thickness of the air outlet rib 2. However, D can be variable, especially when the air outlet rib 2 has a double helix structure. This does not affect the above-mentioned conditions. That is, regardless of the variable value of D based on the position sampling requirements, the above-mentioned conditions should be met. By setting the above conditions, the maximum height of both regular and irregular protrusions will be limited to an appropriate range, thereby fully meeting and taking into account the low speed, high divergence, and long range requirements of soft wind.

[0047] Preferably, along the rear end to the front end of the air outlet window rib 2 , the volume of the convex blocks of the convex block wind dissipation structure 6 increases gradually and the distribution density decreases gradually.

[0048] Specifically, the air outlet window ribs 2 typically have a relatively high density distribution, so the spiral heat exchange airflow escaping and spreading from the air outlet 4 can be temporarily disregarded. Along the spiral air outlet direction of the spiral heat exchange airflow, only compared to the rear end of the air outlet window ribs 2, the spiral heat exchange airflow is able to escape from the air outlet window and continue to diffuse significantly toward the front end when it flows through the front end of the air outlet window ribs 2. Therefore, the successive setting of the bump volume and distribution density of the bump dispersion structure 6 fully meets the high divergence requirements of the soft wind to the greatest extent possible, while also further fully taking into account the high travel requirements of the soft wind, ensuring that the overall quality of the soft wind will be better. The bump volume of the bump dispersion structure 6 can also be equivalently replaced with the maximum normal spacing B here, and specific equivalent replacement can be made as needed.

[0049] Preferably, along the arc length L of the air outlet window rib 2, from the center to the preset positions at both ends, the volume of the convex blocks of the convex block wind dissipation structure 6 decreases gradually, and the distribution density remains unchanged.

[0050] Specifically, the preset positions at both ends can be, for example, 0.1L away from both the inner air guide ring 1 and the outer air guide ring 3. To ensure that the relatively enclosed space within the indoor fan motor assembly is more airtight, and thus to further ensure the low-speed, high-divergence, and high-stroke requirements of the soft wind, the fan motor assembly of the indoor fan and the air outlet window can be integrally assembled and fixedly mounted on the duct mounting plate, and a duct gusset plate is also snapped onto the front end of the duct mounting plate. To fully minimize the interference of the surrounding installation environment of the air outlet 4 with the spiral heat exchange airflow, the preset positions at both ends can be located at the ends of the air outlet window ribs 2, and the protrusions and wind-dispersing structures 6 can be omitted or only have smaller protrusions and wind-dispersing structures 6. From the center to the preset positions at both ends, the volume of the protrusions of the protrusions and wind-dispersing structures 6 decreases, while the distribution density remains unchanged. This can further ensure that the airflow distribution pattern of the spiral heat exchange airflow will always dynamically adapt to the protrusions and wind-dispersing structures 6, further improving the overall quality of the soft wind.

[0051] Example 2

[0052] See also Figure 1-2 As shown, the present invention also provides an indoor fan having the air outlet window described in Example 1.

[0053] The present invention also provides an indoor unit having the air outlet window described in Example 1.

[0054] The present invention also provides an air conditioner having the air outlet window described in Example 1.

[0055] Specifically, those skilled in the art can understand that when the indoor fan, indoor unit, and air conditioner provided in Example 2 have the air outlet window described in Example 1, the solutions to the corresponding technical problems and the achievement of their technical effects can all be found in the description of the air outlet window in Example 1, and will not be repeated here.

[0056] Although the present invention is disclosed as 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 scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. An air outlet window, characterized in that: The invention comprises an inner air guide ring (1), an air outlet window rib (2), and an outer air guide ring (3) which are sequentially connected from the inside to the outside, an air outlet (4) being formed between a plurality of the air outlet window ribs (2), a connecting sleeve (5) of an indoor fan motor assembly being integrally assembled with the inner air guide ring (1) at its front end, a fan impeller being rotatably assembled at the rear end of the connecting sleeve (5) and being arranged opposite to the air outlet window rib (2), a spiral direction of the air outlet window rib (2) being opposite to a spiral direction of the fan impeller, and a convex wind dispersion structure (6) being densely distributed on the inner arc surface (21) of the air outlet window rib (2); the convex wind dispersion structure (6) comprising regular convex blocks with sharp corners and / or irregular convex blocks with sharp corners; and the convex volume of the convex wind dispersion structure (6) gradually increases and the distribution density gradually decreases from the rear end to the front end of the air outlet window rib (2).

2. The air outlet window according to claim 1, characterized in that: The air outlet window ribs (2) are evenly distributed on the air outlet window, and the arc length L of any one of the air outlet window ribs (2) is equal and is 1.1 to 1.8R, wherein R=1 / 2*(R1-R2), R1 is the inner diameter of the outer air guide ring (3), and R2 is the outer diameter of the inner air guide ring (1).

3. An air outlet window according to any one of claims 1-2, characterized in that: A second air outlet window rib (7) is also connected between the inner air guide ring (1) and the outer air guide ring (3), and a threading groove (8) is formed between the inner arc surface of the second air outlet window rib (7) and the outer arc surface of one of the air outlet window ribs (2).

4. The air outlet window according to claim 2, characterized in that: The maximum normal spacing B between any of the regular protrusions and / or the irregular protrusions densely arranged on any of the air outlet window ribs (2) and the corresponding inner arc surface (21) is (0.3-3)*A, and B is also equal to (0.1-0.2)*D, wherein A is used to characterize the average thickness of the air outlet window rib (2), and D is the normal spacing between two adjacent air outlet window ribs (2).

5. An indoor fan, characterized in that: The indoor fan has an air outlet window according to any one of claims 1 to 4.

6. An indoor unit, characterized in that: The indoor unit has an air outlet window according to any one of claims 1 to 4.

7. An air conditioner, characterized in that: The air conditioner has the air outlet window according to any one of claims 1 to 4.

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