CN100383461C - air conditioner indoor unit - Google Patents

Abstract

The invention provides an indoor unit for an air conditioner having a support arm with a shape suppressing dew formation connecting and holding a vertical flap and a plurality of horizontal blades without weakening holding strength of a horizontal flap (13). By integrally forming a blowout air guide (27) with the support arm (25) on a substantially extension in a side face direction of the support arm (25) extended from the vertical flap (12) for holding the horizontal flap (13), blowout air (28) evenly flows on side faces of the support arm (25), entrainment of indoor air can be prevented in vertical flap (12) end faces, and dew formation during cooling operation can be prevented without deteriorating the holding strength of the horizontal flap (13). And beautiful design of an indoor unit body can be improved also.

Description

air conditioner indoor unit

technical field

The invention relates to an indoor unit of an air conditioner provided with a device for changing the direction of exhaust air.

Background technique

In the existing air conditioner indoor unit, the exhaust air is guided to the upper and lower directions by the guide surfaces of the rotatable upper and lower dampers arranged on the air outlet. However, on the left and right sides of the upper and lower dampers, due to the small amount of exhaust air, when the exhaust air is biased upward and downward, the air volume flowing along the lower surface side of the upper and lower dampers is very weak. Will be drawn into the room air. In order to prevent condensed water from being generated on the upper and lower dampers during the cooling operation, some air conditioner indoor units are equipped with rotatable upper and lower dampers on the air exhaust port, so as to direct the exhaust air blown from the air exhaust port to the upward and downward directions, and the exhaust air The side of the tuyere is provided with an exhaust guide plate for guiding the exhaust air to the outside (for an example, refer to Japanese Patent Laid-Open Publication No. Hei 6-288605).

However, if the above-mentioned existing structure is adopted, in an air conditioner provided with left and right dampers, and these left and right dampers are supported by support arms extending from the upper and lower dampers, when the left and right blades of the left and right dampers rotate and deflect to approach At the maximum inclination angle, due to the different directions of the support arm and the exhaust air, the exhaust air flow flowing along the side of the support arm is very weak, and the exhaust air cannot fully blow to the support arm, but stagnates near the support arm .

Thus, during the cooling operation, due to the temperature difference between the support arm and the exhaust air, condensed water is easily generated on the support arm.

In addition, if the support arm is removed in order to prevent the above-mentioned situation, the support strength of the left and right dampers will be weakened, and the appearance of the indoor unit body will be damaged.

Contents of the invention

The present invention aims to solve the above-mentioned problems in the prior art, and its purpose is to provide an indoor unit of an air conditioner with a support arm that does not weaken the support strength of the left and right dampers and is not easy to generate condensed water.

In order to solve the above problems in the prior art, in the indoor unit of the air conditioner of the present invention, the support arms for supporting the left and right dampers are extended from the upper and lower dampers, and the support arms are arranged in the direction of the side extension line of the support arms. There is an air exhaust guide plate, which is integrally formed with the supporting arm.

After adopting this structure, the exhaust air can be evenly blown to the side of the support arm, thereby preventing the indoor air from being drawn in at the end faces of the upper and lower dampers, and neither reducing the supporting strength of the left and right dampers, nor preventing the cooling operation Condensation occurs during the process. In addition, the aesthetic appearance of the body of the indoor unit can also be expected to be improved.

Specific embodiments of the present invention are outlined below. In the indoor unit of the air conditioner according to the first aspect of the present invention, the support arms for supporting the left and right dampers are extended from the upper and lower dampers, and the exhaust guide plate is arranged in the direction of the side extension line of the support arms. The exhaust guide plate is integrated with the supporting arm. In this way, the exhaust air can be evenly blown to the side of the support arm, thereby preventing the indoor air from being drawn in at the end faces of the upper and lower dampers, and neither reducing the support strength of the left and right dampers, but also preventing condensation during cooling operation water. In addition, the aesthetic appearance of the body of the indoor unit can also be expected to be improved.

In the second aspect, specifically, in the first aspect, the downstream side of the air discharge guide plate in the air flow direction is arranged to incline to the right side with respect to the direction of the exhaust air blown out from the air outlet. In this way, the supporting strength of the left and right dampers will not be reduced, and the indoor air can be more effectively prevented from being drawn in, and condensed water can be prevented from being generated during cooling operation.

Specifically, the third aspect is that the upstream side of the exhaust air guide plate described in the first or second aspect in the airflow direction is arranged to be inclined to the left side with respect to the direction of the exhaust air blown out from the air outlet. In this way, not only can the indoor air be more effectively prevented from being drawn in, but also condensed water can be prevented from being generated during the cooling operation. In addition, since the inclined portion is provided on the upstream side of the airflow direction, it is structurally unobtrusive, so that the appearance of the indoor unit body can be expected to be improved.

Specifically, the fourth aspect is that the exhaust guide plate described in any one of the first to third aspects is provided on the upper and lower dampers. In this way, the configuration is easy to realize without changing the internal structure.

Description of drawings

Fig. 1 is a schematic sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention.

Figure 2 is a partial oblique view of the left and right dampers.

Fig. 3 is a partial oblique view after the upper and lower dampers are assembled on the left and right dampers.

Fig. 4 is an enlarged schematic view of the air exhaust guide part therein.

Fig. 5 is a partial plan view of the upper and lower dampers therein.

In the above drawings, 1 is the indoor unit of the air conditioner, 2 is the fan cover, 3 is the stabilizer, 4 is the air intake grid, 5 is the indoor air, 6 is the air flow channel, 7 is the fan, 8 is the heat exchanger, 9 is the Left and right side walls, 10 is an exhaust port, 12 is an upper and lower damper, 13 is a left and right damper, 14 is a left and right blade, 15 is a support bar, 16 is a connecting bar, 17 is an embedded opening, 18 is a blade shaft, and 19 is a fixing hole, 20 is a fixed shaft, 21 is a support bar rotating shaft, 24 is an upper and lower wing plate, 25 is a support arm, 26 is a support hole, 27 is an exhaust guide plate, 28 is an exhaust air, 29 is the upstream side of the airflow direction, and 30 is The downstream side of the airflow direction.

Detailed ways

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the present invention is not limited by this embodiment.

Fig. 1 is a sectional view of an indoor unit of an air conditioner in one embodiment of the present invention.

As shown in FIG. 1 , the casing 1 , the fan cover 2 , the stabilizer 3 and the air intake grille 4 of the air conditioner constitute an air flow channel 6 . Under the action of the fan 7 arranged in the air flow passage 6, the indoor air 5 is sucked from the air intake grid 4, and after heat exchange in the heat exchanger 8, it is discharged from the air outlet 10 on the downstream side of the air flow passage 6. discharge. The air outlet 10 is formed by the fan cover 2 , the stabilizer and the left and right side walls 9 . In addition, the air outlet 10 is also provided with an up and down damper 12 for adjusting the air direction in the up and down direction, and a left and right damper 13 for adjusting the air direction in the left and right direction.

Figure 2 is a partial oblique view of the left and right dampers.

As shown in FIG. 2 , the left and right dampers 13 include a plurality of left and right blades 14 , supporting bars 15 and connecting bars 16 . Each left and right blade 14 is provided with a blade shaft 18 and a fixed shaft 20, and the blade shaft 18 is embedded in an embedding hole 17 provided on the support bar 15, so that the left and right blades 14 can move left and right. The fastening shaft 20 is rotatably mounted in a fastening hole 19 provided on the connecting bar 16 . The plurality of left and right blades 14 mentioned above are combined with the supporting bar 15 and the connecting bar 16 through the blade shafts 18 and the fixed shafts 20 respectively. In this way, when one of the left and right blades 14 moves left and right, all the left and right blades will move in the same direction.

Fig. 3 is a partial oblique view after the left and right dampers are assembled on the upper and lower dampers, and Fig. 4 is an enlarged schematic diagram of the air exhaust guide component.

As shown in Fig. 3 and Fig. 4, the upper and lower dampers 12 include: upper and lower wings 24 in the shape of a horizontally long flat plate; A plurality of support arms 25 on. The support arm 25 is provided with a support hole 26 opening toward the front, and is integrated with the exhaust guide plate 27 . With such a configuration, the support arm 25 is attached (embedded) to the support bar 15 of the left and right dampers 13 at the support bar rotating shaft 21 . When the up and down dampers move up and down, the left and right dampers and the support arms arranged in the up and down dampers 12 move in conjunction.

The operation and function of the indoor unit of the air conditioner having the above construction will be described below.

Fig. 5 is a partial top view of the upper and lower dampers in the indoor unit of the air conditioner.

In order to support the left and right dampers 13, a support arm 25 is extended from the upper and lower dampers 12, and an exhaust guide plate 27 integrally formed with the support arm 25 is provided in a direction substantially extending the side of the support arm 25. After adopting such a structure, the exhaust air 28 can evenly blow to all sides of the support arm 25 , and the exhaust air 28 can fully blow on the entire support arm 25 . In this way, the airflow will not stagnate near the support arm 25, and the temperature difference between the support arm 25 and the exhaust air 28 is very small during the cooling operation, so that condensed water on the support arm 25 can be prevented.

In addition, the exhaust air 28 can be made to flow along the exhaust guide plate 28 by setting the exhaust air 28 to be inclined toward the side surfaces of the upper and lower dampers, that is, the outer direction. Therefore, the exhaust air 28 can surround the sides of the upper and lower dampers 12, so that indoor air can be prevented from being drawn in, and generation of condensed water can be prevented during cooling operation. In addition, by integrating the support arm 25 and the exhaust guide plate, the supporting strength of the left and right dampers 13 can be prevented from being lowered.

In addition, since the downstream side 29 of the exhaust air guide plate 27 in the airflow direction is set to be inclined to the right side with respect to the exhaust air 28 blown out from the air outlet 10, the exhaust air 28 is also guided along such an inclination. directional flow, so that the above-mentioned indoor air can be more effectively suppressed from being drawn in.

In addition, it is also possible to make the upstream side 30 of the exhaust guide plate 27 in the airflow direction be in a shape inclined to the left relative to the direction of the exhaust air 28 blown out from the air outlet 10, so that the exhaust air 28 is also guided along the Such oblique flow can also more effectively suppress the occurrence of indoor air being drawn in. Moreover, since such an inclined shape is located at the upstream side 30 in the airflow direction, it is structurally inconspicuous, and thus the appearance of the indoor unit body can be improved.

In addition, if the exhaust guide plate 27 is provided on the upper and lower dampers 12, there is no need to change the internal structure, so its configuration is relatively easy to realize.

To sum up, the indoor unit of the air conditioner in the present invention can prevent condensed water from being generated on the support arms by integrating the upper and lower dampers, the support arms connecting and supporting a plurality of left and right blades, and the exhaust guide plate. It can be applied to local air conditioners and cooling fans.

Claims (3)

1. An air conditioner indoor unit, characterized in that it comprises: An upper and lower damper for changing the direction of the exhaust air blown out from the air outlet in the upper and lower directions, Left and right dampers for changing the wind direction of the above-mentioned exhaust air in the left and right directions, which are composed of several blades that are connected and fixed by the support bars and can rotate in the left and right directions, and a support arm extending from the upper and lower dampers for supporting the support bar, Wherein, an exhaust guide plate for guiding the flow direction of the exhaust air is integrally formed with the support arm, and the exhaust guide plate is arranged on the upper and lower dampers. 2. The indoor unit of an air conditioner according to claim 1, wherein the downstream side of the air discharge guide plate in the direction of air flow is arranged to face to the right side with respect to the direction of the exhaust air blown out from the air discharge port. tilt. 3. The indoor unit of an air conditioner according to claim 1 or 2, wherein the air exhaust guide plate is arranged on the upstream side of the airflow direction so that it faces leftward with respect to the direction of the exhaust air blown out from the air outlet. tilt.

Images