Wall-mounted indoor unit and air conditioner

Abstract

The present invention discloses a wall-mounted indoor unit, comprising a shell and a windshield; the shell is provided with an air outlet, and the air outlet extends along the length direction of the shell; the windshield is arranged on the lower surface of the shell, and the windshield extends along the length direction of the air outlet. The wall-mounted indoor unit of the present invention can reduce the noise at the air outlet position and improve the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a wall-mounted indoor unit and an air conditioner. Background Art

[0002] During operation, the wall-mounted indoor unit blows out cold air (hot air) from its air outlet, and the cold air (hot air) is guided to the indoor environment by the air guide plate located at the air outlet to achieve cooling (heating) of the indoor environment. However, during the process of the wall-mounted indoor unit blowing air to the indoor environment, the air outlet position often generates a lot of noise, which can easily interfere with the user's work and life, and thus affect the user's experience. Summary of the invention

[0003] The main purpose of the present invention is to provide a wall-mounted indoor unit, aiming to reduce the noise at the air outlet and improve the user experience.

[0004] To achieve the above-mentioned objectives, the present invention proposes a wall-mounted indoor unit, which includes a shell and a wind shield; the shell is provided with an air outlet, and the air outlet extends along the length direction of the shell; the wind shield is arranged on the lower surface of the shell and close to the air outlet, and the wind shield extends along the length direction of the air outlet.

[0005] In one embodiment, the wind shield strip is located at the rear side of the air outlet.

[0006] In one embodiment, the air outlet is arranged on the front side of the shell, and the wind shield is located below the air outlet.

[0007] In one embodiment, the vertical distance from the wind shield strip to the lower edge of the air outlet is no more than 1 / 10 of the height of the wall-mounted indoor unit.

[0008] In one embodiment, the air outlet is at least partially disposed on the lower surface.

[0009] In one embodiment, the distance from the wind shield strip to the back side of the shell is not less than 1 / 2 of the distance from the lower edge of the air outlet to the back side of the shell.

[0010] In one embodiment, the distance from the wind shield strip to the back side of the shell is not less than 3 / 5 of the distance from the lower edge of the air outlet to the back side of the shell.

[0011] In one embodiment, the wall-mounted indoor unit further includes an air guide plate, which is rotatably mounted on the shell to open or close the air outlet.

[0012] In one embodiment, the wind guide plate has a first side edge close to the wind shield strip, and when the wind guide plate rotates downward until the first side edge is close to the lower surface of the shell, the wind shield strip is located in front of the first side edge.

[0013] In one embodiment, when the wind guide plate rotates downward until the first side edge is close to the lower surface of the shell, the lower end edge of the wind shielding strip is lower than the first side edge.

[0014] In one embodiment, a backward angle is formed between the downward protruding direction of the wind shield strip and the lower surface of the shell, and the angle does not exceed 90°.

[0015] In one embodiment, the angle is at least 30° and no more than 60°.

[0016] In one embodiment, a display screen is installed on the windshield strip, and the display screen is exposed on the front side of the windshield strip.

[0017] In one embodiment, the windshield strip is coated with a decorative material layer; and / or the windshield strip is installed with a light strip.

[0018] In one embodiment, the wind shield strip is detachably connected to the shell.

[0019] In one embodiment, the wind shield strip is connected to the shell by any one or more combinations of a snap-on structure, a screw-on structure, a magnetic structure, and a groove-rail structure.

[0020] In one embodiment, the shell includes a chassis, a face frame and a front panel; the wall-mounted indoor unit also includes a heat exchanger and a crossflow fan, the heat exchanger and the crossflow fan are installed on the chassis, and the wind shield is arranged on the lower surface of the chassis.

[0021] The technical solution of the present invention is to set a windshield strip on the lower surface of the shell, and the windshield strip is close to the air outlet. The existence of the windshield strip can make the lower surface of the shell near the air outlet not a smooth surface. Therefore, when the air outlet blows air to the indoor environment, the air below the bottom of the shell is blocked by the windshield strip, and it is difficult to move along the lower surface of the shell to attach to the wall, that is, it is difficult to flow back along the bottom surface along the lower edge of the air outlet to the wall-mounted indoor unit, thereby reducing the reflux of the outlet air and the suction noise, effectively reducing the noise at the air outlet position, and improving the user experience. In addition, since the reflux amount of the outlet air is reduced, the generation of condensation inside the wall-mounted indoor unit can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a partial structural schematic diagram of an embodiment of a wall-mounted indoor unit of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the internal structure of the medium wall-mounted indoor unit;

[0025] Figure 3 for Figure 2 Schematic diagram of the air flow effect when the wall-mounted indoor unit is working;

[0026] Figure 4 It is a structural schematic diagram of another embodiment of the wall-mounted indoor unit of the present invention;

[0027] Figure 5 It is a structural schematic diagram of another embodiment of the wall-mounted indoor unit of the present invention.

[0028] Description of Figure Numbers:

[0029] Label name Label name 100 case 200 Windshield 110 Chassis 300 Wind deflector 120 Face frame 310 First side 130 Front Panel 400 Crossflow impeller 101 Air outlet 500 gap 102 Air Inlet

[0030] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] At present, the wall-mounted indoor unit on the market is installed on the wall of the room, and blows air to the indoor environment through its air outlet to achieve cooling or heating of the indoor environment. When the conventional wall-mounted indoor unit is working, there is generally a problem of high noise at the air outlet. People usually think that the noise at the air outlet is caused by the change of wind speed at the air outlet, or the collision of the air outlet and the air guide plate.

[0035] However, the present invention has found through many tests that when the air outlet blows air to the indoor environment, the position of the air outlet is in a negative pressure state, while the bottom of the wall-mounted indoor unit is in a positive pressure state, so that the air below the bottom of the wall-mounted indoor unit will flow back into the wall-mounted indoor unit along its bottom surface along the lower edge of the air outlet, thereby generating a large suction noise, which in turn causes the noise at the air outlet position to increase. To this end, the present invention discloses a wall-mounted indoor unit, which can reduce the air outlet noise of the wall-mounted indoor unit and improve the user experience.

[0036] See also Figures 1 to 3 The wall-mounted indoor unit of the present invention comprises a housing 100 and a windshield strip 200. The housing 100 is provided with an air outlet 101, and the air outlet 101 extends along the length direction of the housing 100. The windshield strip 200 is arranged on the lower surface of the housing 100, and the windshield strip 200 extends along the length direction of the air outlet 101.

[0037] Specifically, the housing 100 includes a chassis 110, and a face frame 120 and a front panel 130 mounted on the chassis 110. The wall-mounted indoor unit also includes a heat exchanger and a crossflow fan 400, and the heat exchanger and the crossflow fan 400 are mounted on the chassis 110. An air inlet is provided at the top of the housing 100, and an air outlet 101 is provided at the front lower part or the bottom of the housing 100. When the wall-mounted indoor unit is working, the crossflow fan 400 drives air to enter the interior of the housing 100 from the air inlet, and this part of the air passes through the heat exchanger inside the housing 100 to form outlet air, and finally the outlet air is blown to the indoor environment from the outlet 101. It should be noted here that the bottom surface of the housing 100 refers to a surface that is roughly parallel to the horizontal plane. For the lower surface, when there is no chamfer between the bottom surface and the front surface of the shell 100, the lower surface refers to the bottom surface; when there is a chamfer between the bottom surface and the front surface of the shell 100, the lower surface refers to the bottom surface and the chamfered surface.

[0038] The air outlet 101 can be arranged at the front lower part of the housing 100, or at the bottom of the housing 100, and the wind shield 200 is located at the rear side of the air outlet 101. The wind shield 200 protrudes downward from the lower surface of the housing 100, so that the lower surface of the housing 100 near the air outlet 101 is not a smooth surface.

[0039] The technical solution of the present invention is to set a windshield strip 200 on the lower surface of the housing 100, and the windshield strip 200 is close to the air outlet 101. The existence of the windshield strip 200 can make the lower surface of the housing 100 near the air outlet 101 not a smooth surface. Therefore, when the air outlet 101 blows air to the indoor environment, the air below the bottom of the housing 100 is blocked by the windshield strip 200, and it is difficult to move along the lower surface of the housing 100 to attach to the wall, that is, it is difficult to flow back along its bottom surface along the lower edge of the air outlet 101 to the wall-mounted indoor unit (such as Figure 3 As shown), the reflux of the outlet air and the noise of the air intake are reduced, the noise at the outlet 101 is effectively reduced, and the user experience is improved. In addition, since the reflux of the outlet air is reduced, the condensation inside the indoor unit of the wall-mounted unit can also be reduced.

[0040] Typically, there are three positions for the air outlet 101. The first is that the air outlet 101 is located on the front side of the shell 100. The second is that the air outlet 101 is at least partially located at the junction of the front side of the shell 100 and the bottom surface of the shell. The third is that the air outlet 101 is provided on the bottom surface of the shell 100 (the above second and third situations are collectively referred to as the air outlet 101 is at least partially located on the lower surface of the shell 100).

[0041] For the embodiment in which the air outlet 101 is disposed on the front side of the housing 100, the wind shield 200 is located below the air outlet 100. In this case, the vertical distance H between the wind shield 200 and the lower edge of the air outlet 101 is not greater than 1 / 10 of the height of the wall-mounted indoor unit (refer to Figure 3 ), of course, H can be 0 (that is, the lower edge of the air outlet is flush with the bottom surface).

[0042] There are two situations in which the air outlet 101 is at least partially located on the lower surface of the housing 100:

[0043] The air outlet 101 is at least partially located at the junction of the front side of the shell 100 and the bottom surface of the shell 100, which is based on the situation that a chamfer is provided between the bottom surface and the front surface of the shell 100. In this case, the wind shield 200 can be provided on the bottom surface or at the chamfer.

[0044] In the case where the air outlet 101 is arranged on the lower surface, the air outlet can be arranged just at the chamfer, or the air outlet can be arranged on the bottom surface. Since the wind shield 200 is located at the rear side of the air outlet, at this time, the wind shield and the air outlet are both located on the bottom surface.

[0045] The following embodiments will be mainly described by taking the air outlet located at the above-mentioned chamfer as an example.

[0046] See also Figure 2 and Figure 3 In this embodiment, the air outlet 101 is arranged at the front lower part of the housing 100, and the windshield strip 200 is located at the lower side of the air outlet 101. The rear side of the windshield strip 200 is smoothly connected to the lower surface of the housing 100 to reduce the noise generated by the air impact. The windshield strip 200 can be arranged at the middle or front part of the lower surface of the housing 100. However, in order to enhance the windshield effect of the windshield strip 200, it is preferred that the windshield strip 200 be arranged at the front part of the lower surface of the housing 100.

[0047] Please continue reading Figure 2 and Figure 3 To ensure that the windshield strip 200 has a better windshield effect, the windshield strip 200 can be arranged close to the air outlet 101. As for the distance that the windshield strip 200 can be close to the air outlet 101, there is no specific limitation. Figure 2 ), not less than the distance from the lower edge of the air outlet 101 to the back of the housing 100 (as shown in L1 in FIG. Figure 2 This ensures that the wind shield 200 is located at the front side of the lower surface of the housing 100, relatively close to the air outlet 101, and effectively prevents the outlet air from flowing back from the lower edge of the air outlet 101 into the wall-mounted indoor unit.

[0048] See also Figure 2 and Figure 3 Based on the above embodiment, in order to improve the wind shielding effect of the wind shield 200, the distance from the wind shield 200 to the back of the housing 100 is not less than 3 / 5 of the distance from the lower edge of the air outlet 101 to the back of the housing 100, for example, not less than 4 / 5, 5 / 6, 6 / 7, 9 / 10, etc.

[0049] Please continue reading Figure 2 and Figure 3 In this embodiment, the wall-mounted indoor unit further includes an air guide plate 300, which is rotatably mounted on the housing 100 to open or close the air outlet 101. Specifically, the air guide plate 300 is rotatably mounted on the chassis 110, and the air guide plate 300 can be rotated downward to open the air outlet 101, and can be rotated upward to close the air outlet 101. The air guide plate 300 has a first side edge 310 close to the wind shielding strip 200. When the air guide plate 300 is rotated downward until the first side edge 310 is close to the lower surface of the housing 100, the air outlet 101 is almost completely opened. At this time, the wind shielding strip 200 can be located at the front side or the rear side of the first side edge 310.

[0050] See also Figure 2 and Figure 3 In this embodiment, when the air guide plate 300 rotates downward until the first side 310 is close to the lower surface of the housing 100, the wind shielding strip 200 is located in front of the first side 310. At this time, the wind shielding strip 200 can block the gap 500 between the lower surface of the housing 100 and the air guide plate 300, thereby reducing the backflow of the outlet air from the gap 500 to the interior of the wall-mounted indoor unit.

[0051] Furthermore, when the air guide plate 300 rotates downward until the first side edge 310 is close to the lower surface of the housing 100, the lower edge of the wind shield 200 is lower than the first side edge 310. Thus, the wind shield 200 and the first side edge 310 of the air guide plate 300 are arranged in a staggered manner in the vertical direction, thereby ensuring that the wind shield 200 completely blocks the gap 500 and greatly reduces the amount of air recirculation.

[0052] Even if a small amount of outgoing air enters from the gap 500, this small amount of outgoing air will be blocked by the wind shield 200 and flow downward along the wind shield 200, leave the lower surface of the housing 100, and then flow along the inner surface of the wind guide plate 300, and be guided to the indoor environment by the wind guide plate 300, and will not flow back to the interior of the wall-mounted indoor unit. In other words, the wind shield 200 can not only block the return air outside the gap 500, but also guide the air leaking from the gap 500 to the inner surface of the wind guide plate 300, so as to be guided by the wind guide plate 300.

[0053] See also Figure 4Based on the above embodiment, since the windshield strip 200 protrudes downward from the lower surface of the housing 100, a backward angle is formed between the downward protruding direction of the windshield strip 200 and the lower surface of the housing 100. In order to enhance the windshield effect and wind guiding effect of the windshield strip 200, optionally, the angle does not exceed 90°. If the angle is 90°, it is equivalent to that the windshield strip 200 and the lower surface of the housing 100 are roughly in an inverted L shape. If the angle is less than 90°, the windshield strip 200 and the lower surface of the housing 100 are roughly in a フ shape.

[0054] See also Figure 5 In one embodiment, the angle is less than 90°, that is, the windshield strip 200 and the lower surface of the housing 100 are roughly in the shape of a フ, and the lower edge of the windshield strip 200 is inclined toward the air guide plate 300. It should be noted here that the rear side surface of the windshield strip 200 can be a flat surface or an arc surface. With this design, the windshield strip 200 can block most of the return air outside the gap 500. Even if a small part of the return air leaks in from the gap 500, the windshield strip 200 will guide this part of the return air to the air guide plate 300, so that it is discharged along the air guide plate 300.

[0055] Theoretically, the smaller the angle, the better. But on the contrary, when the angle is small, the windshield area of ​​the windshield strip 200 is also small. Therefore, to ensure that the windshield strip 200 can maintain a better windshield effect, the angle is at least 30° and not more than 60°. For example, the angle can be 30°, 35°, 40°, 45°, 50°, 55°, etc.

[0056] See also Figure 1 and Figure 2 Based on any of the above embodiments, considering that the windshield strip 200 may affect the placement of the wall-mounted indoor unit, the windshield strip 200 can be detachably connected to the housing 100. When placing or transporting, the windshield strip 200 can be removed to make the lower surface of the housing 100 relatively flat, which is convenient for placement or packaging. After the wall-mounted indoor unit is installed, the windshield strip 200 is installed on the lower surface of the housing 100.

[0057] See also Figure 1 and Figure 2 As for the detachable connection method between the windshield strip 200 and the shell 100, the windshield strip 200 can be connected to the shell 100 by any one or more combinations of a snap-on structure, a screw structure, a magnetic structure, and a groove-rail structure.

[0058] In one embodiment, a mounting groove is provided on the lower surface of the shell 100, and a clamping hole is provided around the mounting groove; an elastic clamp is provided on the periphery of the windshield strip 200, and the windshield strip 200 is correspondingly inserted into the mounting groove, and the elastic clamp is correspondingly engaged with the clamping hole.

[0059] In another embodiment, a first magnetic accessory is provided on the lower surface of the shell 100, and a second magnetic accessory cooperating with the first magnetic accessory is provided on the upper surface of the windshield strip 200, and the second magnetic accessory and the first magnetic accessory are magnetically matched.

[0060] In another embodiment, a slide groove extending along the length direction of the air outlet 101 is provided on the lower surface of the housing 100, and the windshield strip 200 is provided with a slide rail, and the slide rail is inserted and matched with the slide groove. The windshield strip 200 can be disassembled and assembled by pulling the windshield strip 200 sideways.

[0061] See also Figure 1 and Figure 2 Based on any of the above embodiments, the display screen of the wall-mounted indoor unit is usually installed on the front panel 130 to display parameters such as the working status. However, since the front panel 130 is located at a relatively high position, the user needs to look up at a relatively large angle to see the display screen, which may easily cause neck fatigue in the user. Here, considering that the windshield strip 200 is located at a relatively low position, the windshield strip 200 is closer to the user than the front panel 130. Therefore, a display screen is provided on the windshield strip 200, and the display screen is exposed on the front side of the windshield strip 200. As a result, the user only needs to look up at a relatively small angle or even does not need to look up to easily view the display screen.

[0062] See also Figure 1 and Figure 2 In this embodiment, a decorative material layer is coated on the surface of the windshield strip 200 so that the windshield strip 200 can serve as a decorative strip to achieve a decorative effect. As for the material of the decorative material layer, it can be selected according to market demand and the overall color adaptability of the wall-mounted indoor unit, which will not be introduced here. In addition, a light strip can be installed on the windshield strip 200, and the light strip can be used to decorate the windshield strip 200 or serve as a night lighting lamp.

[0063] The present invention also provides an air conditioner, which includes a wall-mounted indoor unit. The specific structure of the wall-mounted indoor unit refers to the above-mentioned embodiment. Since this air conditioner adopts all the technical solutions of all the above-mentioned embodiments, it also has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0064] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wall-mounted indoor unit, characterized in that: The wall-mounted indoor unit comprises: A shell, wherein the shell is provided with an air outlet, and the air outlet extends along the length direction of the shell; A windshield strip, the windshield strip being arranged on the lower surface of the shell, the windshield strip being protruded downward from the lower surface of the shell, the windshield strip being arranged outside the air outlet and being located at the rear side of the air outlet, and the windshield strip extending along the length direction of the air outlet; An air guide plate is rotatably mounted on the shell to open or close the air outlet, the air guide plate having a first side edge close to the wind shield strip, when the air guide plate is rotated downward until the first side edge is close to the lower surface of the shell, the air outlet is opened, the wind shield strip is located in front of the first side edge, the wind shield strip blocks the gap between the lower surface of the shell and the air guide plate, the lower end edge of the wind shield strip is lower than the first side edge, and the wind shield strip and the first side edge are staggered in the up and down directions.

2. The wall-mounted indoor unit according to claim 1, characterized in that: The air outlet is arranged at the front side of the shell, and the wind shielding strip is located below the air outlet.

3. The wall-mounted indoor unit according to claim 1, characterized in that: The vertical distance from the wind shield strip to the lower edge of the air outlet is no more than 1 / 10 of the height of the wall-mounted indoor unit.

4. The wall-mounted indoor unit according to claim 1, characterized in that: The air outlet is at least partially disposed on the lower surface.

5. The wall-mounted indoor unit according to any one of claims 1 to 4, characterized in that: The distance from the wind shield strip to the back side of the shell is not less than 1 / 2 of the distance from the lower edge of the air outlet to the back side of the shell.

6. The wall-mounted indoor unit according to claim 5, characterized in that: The distance from the wind shield strip to the back side of the shell is not less than 3 / 5 of the distance from the lower edge of the air outlet to the back side of the shell.

7. The wall-mounted indoor unit according to any one of claims 1 to 4, characterized in that: A backward angle is formed between the downward protruding direction of the wind shield strip and the lower surface of the shell, and the angle does not exceed 90°.

8. The wall-mounted indoor unit according to claim 7, characterized in that: The angle is at least 30° and not more than 60°.

9. The wall-mounted indoor unit according to any one of claims 1 to 4, characterized in that: The windshield strip is provided with a display screen, and the display screen is exposed on the front side of the windshield strip.

10. The wall-mounted indoor unit according to any one of claims 1 to 4, characterized in that: The windshield strip is coated with a decorative material layer; and / or the windshield strip is installed with a light strip.

11. The wall-mounted indoor unit according to any one of claims 1 to 4, characterized in that: The windshield strip is detachably connected to the shell.

12. The wall-mounted indoor unit according to claim 11, characterized in that: The windshield strip is connected to the shell by any one or more combinations of a snap-fit ​​structure, a screw-connection structure, a magnetic attraction structure, and a groove-rail structure.

13. The wall-mounted indoor unit according to any one of claims 1 to 4, characterized in that: The shell includes a chassis, a face frame and a front panel; the wall-mounted indoor unit also includes a heat exchanger and a crossflow fan, the heat exchanger and the crossflow fan are installed on the chassis, and the wind shield is arranged on the lower surface of the chassis.

14. An air conditioner, characterized in that: The air conditioner comprises a wall-mounted indoor unit as described in any one of claims 1 to 13.

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