CN108266802A - Air conditioner indoor unit and air conditioner - Google Patents

Abstract

The invention provides an air conditioner indoor unit and an air conditioner. The air-conditioning indoor unit comprises a shell (1) and a fan arranged in the shell (1), wherein an air inlet (3) and an air outlet are formed in the shell (1), the air inlet (3) is formed in at least one side face of the shell (1) in the length direction, and the fan is arranged on an air flow path between the air inlet (3) and the air outlet. According to the air conditioner indoor unit, the air inlet of the air conditioner can be prevented from being influenced by the top wall of a room, the air inlet efficiency is improved, and the heat exchange performance of the air conditioner is ensured.

Description

Air conditioner indoor unit and air conditioner

technical field

The invention belongs to the technical field of air conditioning, and in particular relates to an air conditioning indoor unit and an air conditioner.

Background technique

The existing split machine adopts a cross-flow fan. Since the cross-flow fan can only enter the air in one direction, it is necessary to guide the flow through the air deflector to change the airflow organization. However, due to the limitation of the structure of the wind deflector, the air outlet angle is limited, for example, the maximum angle is only 60 degrees, and the cold air is heavy and easy to sink, while the hot air is light and easy to rise, so a better air flow organization is best when cooling. The wind is blown horizontally or upwards, and the wind is blown downwards as much as possible when heating.

The existing split unit is affected by the ceiling. Since the space between the split unit and the ceiling wall of the room is small, the air inlet efficiency is low, resulting in low air outlet efficiency, which affects the heat transfer performance of the air conditioner.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to provide an air conditioner indoor unit and an air conditioner, which can prevent the air intake of the air conditioner from being affected by the ceiling wall of the room, improve the air intake efficiency, and ensure the heat exchange performance of the air conditioner.

In order to solve the above problems, the present invention provides an air conditioner indoor unit, which includes a housing and a fan installed in the housing. The housing is provided with an air inlet and an air outlet, and the air inlet is arranged on at least one side of the housing in the length direction. The fan is arranged on the air flow path between the air inlet and the air outlet.

Preferably, the fan is an axial fan, and the direction of the central axis of the axial fan is consistent with the length direction of the housing.

Preferably, the air outlet includes an upper air outlet on the top of the housing and a lower air outlet on the bottom of the housing, and the upper air outlet and the lower air outlet can be opened selectively.

Preferably, the upper air outlet of the casing is provided with a first air outlet panel, and the lower air outlet is provided with a second air outlet panel. When the air conditioner indoor unit is in the upper air outlet, the first air outlet panel opens the upper air outlet, and the second air outlet The second air outlet panel closes the lower air outlet; when the air conditioner indoor unit is in the lower air outlet, the first air outlet panel closes the upper air outlet, and the second air outlet panel opens the lower air outlet.

Preferably, both the first air outlet panel and the second air outlet panel are slidably arranged on the housing, and when the air-conditioning indoor unit is in the upper air outlet position, the first air outlet panel slides to the outside of the second air outlet panel; when the air-conditioning indoor unit When the air is blowing from the bottom, the second air outlet panel slides to the outside of the first air outlet panel; when the air conditioner indoor unit is in standby or off state, the first air outlet panel closes the upper air outlet, and the second air outlet panel closes the lower air outlet , the first air outlet panel and the second air outlet panel are flush at the mating position.

Preferably, the upper air outlet is provided with a first air guide plate; and/or, the lower air outlet is provided with a second air guide plate.

Preferably, the air outlet of the fan is provided with a deflector for guiding the air from the fan.

Preferably, there are multiple deflectors, and the multiple deflectors are arranged at intervals along a direction perpendicular to the central axis of the fan.

Preferably, the deflectors are arc-shaped plates; and/or, the distance between two adjacent deflectors gradually increases along the direction of air flow.

Preferably, the gap between two adjacent deflectors is L. In a plane perpendicular to the central axis of the fan, the distance between the center of the air inlet of the air duct formed by the two deflectors and the central axis of the fan is The distance between them is D, and L is inversely proportional to D.

Preferably, the deflector includes a first deflector, a second deflector and a third deflector arranged in sequence from top to bottom, wherein the first deflector corresponds to the radial edge of the fan, and the fan The central axis of is located between the second deflector and the third deflector, and the gap between the first deflector and the second deflector is larger than the gap between the second deflector and the third deflector.

Preferably, an indoor heat exchanger is also provided in the casing, and the indoor heat exchanger cover is arranged on the outside of the deflector, and the gap between the first deflector and the top inner edge of the indoor heat exchanger is larger than the first deflector and the first deflector. The gap between the second deflectors.

Preferably, when the deflector is a curved plate, the deflector is bent downward or upward.

Preferably, there are two air inlets, and the two air inlets are respectively located on both sides of the length direction of the casing, and a fan is arranged at each air inlet, and a partition is also arranged in the casing, and the partition is used to separate the casing The body is divided into two independent air ducts.

Preferably, the air conditioner indoor unit is a wall-mounted indoor unit.

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

The air conditioner indoor unit provided by the present invention comprises a casing and a fan arranged in the casing, the casing is provided with an air inlet and an air outlet, the air inlet is arranged on at least one side in the longitudinal direction of the casing, and the fan is arranged between the air inlet and the air outlet. on the air flow path between the air outlets. Since the air inlet of the air-conditioning indoor unit is arranged on at least one side in the longitudinal direction of the housing instead of being arranged on the top of the housing, when the air-conditioning indoor unit is installed, the air-conditioning indoor unit can be installed on the top, so that the air-conditioning indoor The machine enters the air from the side of the housing, which will not affect the air intake of the indoor unit of the air conditioner, thereby effectively improving the performance of the indoor unit of the air conditioner. The cold air can generate a wall-attached flow along the ceiling, so that the overall airflow can be blown farther, and the temperature adjustment speed is faster and the adjustment effect is better.

Description of drawings

FIG. 1 is a schematic structural view of an air conditioner indoor unit according to an embodiment of the present invention;

Fig. 2 is a side structural diagram of an air conditioner indoor unit according to an embodiment of the present invention;

3 is a three-dimensional structural view of an air conditioner indoor unit according to an embodiment of the present invention;

Fig. 4 is a schematic structural view of the indoor unit of the air conditioner according to the embodiment of the present invention when the air is blowing upward;

Fig. 5 is a schematic structural view of the indoor unit of the air conditioner according to the embodiment of the present invention when the air is blowing from the bottom.

The reference signs are indicated as:

1. Shell; 2. Axial flow fan; 3. Air inlet; 4. Upper air outlet; 5. Lower air outlet; 6. First air outlet panel; 7. Second air outlet panel; 8. First air guide 9, the second air deflector; 10, the first deflector; 11, the second deflector; 12, the third deflector; 13, the indoor heat exchanger; 14, the clapboard.

Detailed ways

1 to 5, according to an embodiment of the present invention, the air conditioner indoor unit includes a housing 1 and a fan disposed in the housing 1, the housing 1 is provided with an air inlet 3 and an air outlet, and the air inlet 3 It is arranged on at least one side of the casing 1 in the length direction, and the fan is arranged on the air flow path between the air inlet 3 and the air outlet. The air conditioner indoor unit is preferably a wall-mounted indoor unit.

Since the air inlet 3 of the air-conditioning indoor unit is arranged on at least one side in the longitudinal direction of the housing 1 instead of being arranged on the top of the housing 1, when the air-conditioning indoor unit is installed, the air-conditioning indoor unit can be mounted on the top, The air-conditioning indoor unit enters the air from the side of the housing 1 without affecting the air-intake of the air-conditioning indoor unit, thereby effectively improving the working performance of the air-conditioning indoor unit. In addition, when the air-conditioning indoor unit is blowing upward, it can be attached to the top of the air-conditioning indoor unit. Wind, the blown cold air can generate wall-attached flow along the ceiling, so that the overall airflow can be blown farther, the temperature adjustment speed is faster, and the adjustment effect is better.

Preferably, the fan is an axial flow fan 2 , and the direction of the central axis of the axial flow fan 2 is consistent with the length direction of the casing 1 . The fan adopts the axial flow fan 2, which can have a larger air volume than the traditional axial flow fan, and the air volume can be adjusted in a larger range. Subtle adjustments make the indoor temperature adjustment more suitable for user needs.

In this embodiment, the air outlets include an upper air outlet 4 at the top of the housing 1 and a lower air outlet 5 at the bottom of the housing 1 , and the upper air outlet 4 and the lower air outlet 5 can be opened selectively. Since the air outlet includes the upper air outlet 4 and the lower air outlet 5, when selecting the air outlet position of the air conditioner indoor unit, it can be adjusted according to the working mode of the air conditioner indoor unit. For example, when the air conditioner indoor unit is cooling, select the upper air outlet. Mode, when the air-conditioning indoor mechanism heats up, select the down-flow mode. The advantage of this is that when the air conditioner is heating, the hot air is blown from the lower side of the indoor unit of the air conditioner, so that the hot air blown out can generate a cohesive flow along the wall until it reaches the ground, and then the hot air will rise. The airflow organization is conducive to rapid and uniform heating of the whole room; when the air conditioner is cooling, the cold air is blown flat from the top of the indoor unit of the air conditioner, and the cold air blown out can generate a wall-attached flow along the ceiling, so that the overall airflow can be blown farther, and then the cold air is used. According to the principle, it sinks gradually, forming the effect of "raining" cold air, and achieving the purpose of quickly reducing the heat load of the room.

Since the cold air can be blown upwards from the upper air outlet 4 during cooling, the condensed water in the indoor heat exchanger 13 is blown to the water tray at the front end of the indoor heat exchanger 13 at most, unlike ordinary air conditioners that blow downwards, the condensed water is easy Blowing out to people or dripping will cause environmental pollution, so the overall layout and airflow organization can completely solve the condensation problem.

After solving the condensation problem, the speed of the axial flow fan 2 can be adjusted to the lowest, no longer affected by the condensation of the low windshield, and the noise can reach the lowest when the overall speed is adjusted to the lowest, which is lower than the noise of conventional cross-flow fans, so Can improve user experience.

The upper air outlet 4 of the housing 1 is provided with a first air outlet panel 6, and the lower air outlet 5 is provided with a second air outlet panel 7. When the air conditioner indoor unit is in the upper air outlet, the first air outlet panel 6 is opened and The air outlet 4 and the second air outlet panel 7 close the lower air outlet 5; The indoor unit of the air conditioner includes two air outlet panels, and each air outlet panel corresponds to an air outlet, which can reduce the movement distance of the air outlet panel, and conveniently realize the opening or closing of each air outlet, and the operation is more simple and convenient, and it is easier to realize .

In this embodiment, both the first air outlet panel 6 and the second air outlet panel 7 are slidably arranged on the casing 1. When the indoor unit of the air conditioner is on the upper air outlet, the first air outlet panel 6 slides to the second air outlet. Outside the panel 7; when the air conditioner indoor unit is in the lower air outlet, the second air outlet panel 7 slides to the outside of the first air outlet panel 6; when the air conditioner indoor unit is in the standby or shutdown state, the first air outlet panel 6 is closed The air outlet 4 and the second air outlet panel 7 close the lower air outlet 5, and the first air outlet panel 6 and the second air outlet panel 7 are flush at the mating position.

The two air outlet panels cooperate with each other. When the upper air outlet is required, the second air outlet panel 7 located at the lower air outlet 5 does not move, and the lower side of the first air outlet panel 6 located at the upper air outlet 4 turns outward. After a certain distance, after reaching the outside of the second air outlet panel 7, the first air outlet panel 6 moves toward the outside of the second air outlet panel 7, and simultaneously opens the upper air outlet 4 to realize the upper air outlet. Since the second air outlet panel 7 is misaligned with the first air outlet panel 6, the movement of the first air outlet panel 6 will not interfere with the second air outlet panel 7, which facilitates position adjustment of the first air outlet panel 6 . When the wind needs to be blown down, the first air outlet panel 6 located at the upper air outlet 4 does not move, and the upper side of the second air outlet panel 7 located at the lower air outlet 5 turns outward for a certain distance. After the outside of the wind panel 6, the second air outlet panel 7 moves toward the outside of the first air outlet panel 6, and simultaneously opens the lower air outlet 5 to realize the lower air outlet. When the air-conditioning indoor unit is on standby or turned off, the first air outlet panel 6 and the second air outlet panel 7 are both in the initial position, and at this time, the side of the first air outlet panel 6 close to the second air outlet panel 7 is in contact with the second air outlet panel 7 . The side of the panel 7 close to the first air outlet panel 6 is attached to form a seamless fit, so that the air conditioner indoor unit has a good appearance.

The sliding of the first air outlet panel 6 and the second air outlet panel 7 can be realized by the cooperation of the gear rack and the motor, or by the cooperation of the linkage mechanism and the motor.

The upper air outlet 4 is provided with a first air deflector 8 ; and/or, the lower air outlet 5 is provided with a second air guide 9 . The rotation of the first wind deflector 8 is controlled by a separate motor, and the first wind deflector 8 can be turned over to the lower edge of the upper air outlet 4 when the air is blown from the indoor unit of the air conditioner, thereby extending the air supply distance of the upper air outlet 4, The attached wall flow generated by the cold air along the ceiling can blow farther, and the air supply effect is better. The second wind deflector 9 is controlled by a separate motor to rotate, and can guide the air outlet from the air conditioner indoor unit when the air is blown from the bottom of the air conditioner indoor unit. Therefore, it can be adjusted to a vertical direction, so that the blown hot air can better generate a cohesive flow along the wall, and improve the hot air outlet effect of the air conditioner indoor unit.

Both wind deflectors are equipped with separate motors for control, and one end of the wind deflector is driven and connected with a stepper motor, which is directly sleeved on the end shaft of the wind deflector, and is rotated by the stepper motor to a certain extent. Angle to adjust the rotation angle of the air deflector, wherein the first air deflector 8 is used to control the cooling angle, closed when heating, the second air deflector 9 is used to control the heating angle, closed when cooling, the two air deflectors The wind panels are respectively driven and rotated by a stepping motor.

Preferably, the air outlet of the fan is provided with a deflector for guiding the air outlet of the fan, which can guide the air outlet of the fan, so that the air outlet of the fan can follow the set direction Travel for good air flow.

In this embodiment, there are multiple deflectors, and the multiple deflectors are arranged at intervals along a direction perpendicular to the central axis of the fan. A plurality of deflectors are arranged perpendicular to the bottom of the housing 1 near the wall, and the arrangement of the plurality of deflectors is conducive to dividing the air duct, so that the distribution of the wind field inside the air conditioner indoor unit is more uniform, and better air flow can be obtained Effect.

The deflectors are arc-shaped plates, and the distance between two adjacent deflectors increases gradually along the direction of air flow.

Specifically, taking the gap between two adjacent baffles as L as an example, in a plane perpendicular to the central axis of the fan, the center of the air inlet of the air duct formed by the two baffles is aligned with the center of the fan. The distance between the central axes is D, and L is inversely proportional to D. That is to say, in the process of designing the deflector, the closer the distance between the center of the air duct air inlet formed by two adjacent deflectors and the central axis of the fan, the greater the distance between the two deflectors. The smaller the gap L is, the farther the distance between the center of the air duct air inlet formed by two adjacent deflectors and the central axis of the fan is, the larger the gap L between the two deflectors will be. This is because for axial flow fans, the wind speed increases gradually along the direction away from the central axis of the fan. Therefore, the closer to the central axis of the fan, the smaller the wind speed, and the farther away from the central axis of the fan, the greater the wind speed. , therefore, in order to obtain a more uniform wind field, it is necessary to arrange the deflectors according to this characteristic. In areas with high initial wind speed, wide inlets can be used, and gradually expanding air ducts can be used to gradually weaken the blockage according to the gradient. Through the narrow air inlet, the shorter air duct is gradually expanded with a different arc from the area with a higher initial wind speed, so that the wind speed reaches the inner surface of the indoor heat exchanger 13 faster, so that the airflow in different wind speed areas reaches the indoor heat exchange The wind speed values at the inner surface of the device 13 remain comparable, thereby obtaining a more uniform wind field.

In this embodiment, the deflectors include a first deflector 10 , a second deflector 11 and a third deflector 12 arranged in sequence from top to bottom, wherein the first deflector 10 corresponds to The radial edge of the fan, the central axis of the fan is located between the second deflector 11 and the third deflector 12, and the gap L2 between the first deflector 10 and the second deflector 11 is larger than the second deflector The gap L3 between the plate 11 and the third deflector 12 .

The housing 1 is also provided with an indoor heat exchanger 13, the indoor heat exchanger 13 is covered on the outside of the deflector, and the gap L1 between the first deflector 10 and the top inner edge of the indoor heat exchanger 13 is larger than the first The gap L2 between the deflector 10 and the second deflector 11 .

This is because the distance between the gap L1 between the top inner edge of the first baffle 10 and the indoor heat exchanger 13 and the central axis of the axial flow fan 2 is the largest, and the first baffle 10 and the second baffle The distance between the gap L2 between 11 and the central axis of the axial fan 2 is second, the distance between the gap L3 between the second deflector 11 and the third deflector 12 and the central axis of the axial fan 2 The smallest, so the initial wind speed between the first deflector 10 and the top inner edge of the indoor heat exchanger 13 is the largest, the design gap L1 is also the largest, and the air duct distance is the farthest, which helps to slow down the flow velocity; the first deflector The initial wind speed between the plate 10 and the second deflector 11 is next, and the air duct distance is also next; the initial wind speed between the second deflector 11 and the third deflector 12 is the smallest, and the air duct distance is also the smallest. The wind speed is thus increased through the narrow tuyere. In this way, the final wind speed on the inner surface of the indoor heat exchanger 13 can be made uniform, and combined with the branch arrangement of the indoor heat exchanger 13, the overall temperature field can be uniform.

When the deflector is a curved plate, the deflector is bent downward or upward. Of course, the deflector can also adopt a straight structure.

Preferably, there are two air inlets 3, and the two air inlets 3 are respectively located on both sides of the housing 1 in the length direction, each air inlet 3 is provided with a fan, and a partition is also provided in the housing 1. The plate 14 and the partition 14 are used to divide the housing 1 into two mutually independent air passages. The partition plate 14 is located on the longitudinal mid-plane of the air-conditioning indoor unit, so that the fan structure and the air duct structure on both sides of the longitudinal mid-plane of the air-conditioning indoor unit are symmetrical, and the air outlet formed is more uniform.

Preferably, the two fans on both sides of the length direction of the casing 1 are independently controlled, so the two fans can have different rotation speeds, so that when the indoor temperature is adjusted, the two sides of the length direction of the air conditioner indoor unit have different rotation speeds. The air outlet speed forms different temperature distribution areas indoors, so that the indoor temperature control is more flexible and can better meet user requirements.

According to an embodiment of the present invention, the air conditioner includes an air-conditioning indoor unit, and the air-conditioning indoor unit is the above-mentioned air-conditioning indoor unit. Preferably, the air conditioner is a wall-mounted unit.

Those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned advantageous modes can be freely combined and superimposed.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Inside. The above are only preferred embodiments of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principles of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be It is regarded as the protection scope of the present invention.

Claims (16)

1. An air conditioner indoor unit, characterized in that it comprises a housing (1) and a fan arranged in the housing (1), and the housing (1) is provided with an air inlet (3) and an air outlet , the air inlet (3) is arranged on at least one side in the longitudinal direction of the casing (1), and the fan is arranged on the air flow path between the air inlet (3) and the air outlet. 2. The air-conditioning indoor unit according to claim 1, wherein the fan is an axial fan (2), and the direction of the central axis of the axial fan (2) is the same as the length of the housing (1). The same direction. 3. The air conditioner indoor unit according to claim 1, characterized in that the air outlet includes an upper air outlet (4) located at the top of the housing (1) and a lower air outlet located at the bottom of the housing (1). The air outlet (5), the upper air outlet (4) and the lower air outlet (5) can be selectively opened. 4. The air conditioner indoor unit according to claim 3, characterized in that a first air outlet panel (6) is provided at the upper air outlet (4) of the housing (1), and the lower air outlet (5) is provided with a second air outlet panel (7). When the air conditioner indoor unit is in the upper air outlet, the first air outlet panel (6) opens the upper air outlet (4), and the second The air outlet panel (7) closes the lower air outlet (5); when the air conditioner indoor unit is in the lower air outlet, the first air outlet panel (6) closes the upper air outlet (4), and the second Two air outlet panels (7) open the lower air outlet (5). 5. The air conditioner indoor unit according to claim 4, characterized in that, both the first air outlet panel (6) and the second air outlet panel (7) are slidably arranged on the housing (1) , when the air-conditioning indoor unit is in the upper air outlet, the first air outlet panel (6) slides to the outside of the second air outlet panel (7); when the air-conditioning indoor unit is in the lower air outlet, the The second air outlet panel (7) slides to the outside of the first air outlet panel (6); when the air conditioner indoor unit is in standby or shutdown state, the first air outlet panel (6) closes the upper The air outlet (4), the second air outlet panel (7) closes the lower air outlet (5), the first air outlet panel (6) and the second air outlet panel (7) are in the matching position flush. 6. The air-conditioning indoor unit according to claim 3, characterized in that, the upper air outlet (4) is provided with a first air deflector (8); and/or, the lower air outlet (5) A second wind deflector (9) is provided. 7. The air-conditioning indoor unit according to any one of claims 1 to 6, characterized in that a deflector for guiding the flow of air from the fan is provided at the air outlet of the fan. 8 . The air conditioner indoor unit according to claim 7 , wherein there are a plurality of deflectors, and the plurality of deflectors are arranged at intervals along a direction perpendicular to the central axis of the fan. 9. The air conditioner indoor unit according to claim 8, wherein the deflector is an arc-shaped plate; and/or, the distance between two adjacent deflectors is along the direction of air flow Gradually increase. 10. The air-conditioning indoor unit according to claim 8, wherein the gap between two adjacent deflectors is L, and in a plane perpendicular to the central axis of the fan, the two deflectors The distance between the center of the air inlet of the air duct formed by the plate and the central axis of the fan is D, and L is inversely proportional to D. 11. The air-conditioning indoor unit according to claim 10, characterized in that, the deflectors include a first deflector (10) and a second deflector (11) arranged in sequence from top to bottom. ) and the third deflector (12), wherein the first deflector (10) corresponds to the radial edge of the fan, and the central axis of the fan is located between the second deflector (11) and the Between the third deflector (12), the gap between the first deflector (10) and the second deflector (11) is larger than the second deflector (11) and the gap between the second deflector (11) and the second deflector (11). The gap between the third baffles (12). 12. The air-conditioning indoor unit according to claim 11, characterized in that, an indoor heat exchanger (13) is further arranged in the housing (1), and the indoor heat exchanger (13) is covered by the Outside the deflector, the gap between the first deflector (10) and the top inner edge of the indoor heat exchanger (13) is larger than the first deflector (10) and the second deflector The gap between the flow plates (11). 13. The air conditioner indoor unit according to claim 9, wherein when the deflector is a curved plate, the deflector is bent downward or upward. 14. The air-conditioning indoor unit according to any one of claims 1-6, 8-13, characterized in that there are two air inlets (3), and the two air inlets (3) are respectively located at the On both sides of the length direction of the housing (1), one fan is provided at each air inlet (3), and a partition (14) is also provided in the housing (1), so The partition (14) is used to divide the casing (1) into two mutually independent air ducts. 15. The air-conditioning indoor unit according to any one of claims 1-6, 8-13, characterized in that the air-conditioning indoor unit is a wall-mounted indoor unit. 16. An air conditioner, comprising an air-conditioning indoor unit, characterized in that the air-conditioning indoor unit is the air-conditioning indoor unit according to any one of claims 1-15.