ES2229298T3 - INTERIOR UNIT FOR AIR CONDITIONING SYSTEM. - Google Patents

Abstract

THE INVENTION REFERS TO A UNIT AND INTERIOR FOR AN AIR CONDITIONING SYSTEM. THE INDOOR UNIT IS CHARACTERIZED IN THAT A CELOSIA (10) CAN TURN IN TWO OPPOSITE ADDRESSES FROM A CLOSED POSITION IN WHICH THE CELOSIA CLOSELY CLOSES A PORT OF EXIT (1). THE CELOSIA HAS A CURVED CUTTING SECTION WITH A CONCAVA SURFACE (10A) AND A CONVEX OPPOSITE SURFACE (10B). IN ADDITION, A MEANS OF CONTROL IS PROVIDED (27) AND THE MEANS OF CONTROL CONTROLS THE MOVEMENT OF THE CELOSIA IN A WAY THAT THE SURFACE CONVERSES DIRECTLY UPWARDS WHEN THE AIR CONDITIONING HAS BEEN DOWN FORWARD, AND IN A WAY CONCAVA IS DIRECTLY DIRECTED TOWARDS WHEN THE AIR CONDITIONING HAS TO BE DOWNLOADED BELOW.

Description

Indoor unit for air system conditioned.

Background of the invention

The present invention makes reference, in a manner general, to an air conditioning system and an indoor unit for the same. More specifically, the invention relates to a air conditioning system that has an indoor unit equipped with a grid arranged horizontally to change vertically the discharge orientation of an air conditioner, and a separate controller to remotely control the movement of rotation of the grid of the indoor unit.

Description of the prior art

The patent EP-A-0.657.701 describes a unit interior for an air conditioner, comprising a door of output to discharge air conditioning in a room, a entrance door to aspirate air to condition the room, a discharge step to allow the air conditioner to flow in one direction forward and upward in the direction of said exit door, oscillating rear and front grilles arranged at said exit door, to change vertically a sense of discharge of said air conditioning, and drive means controlled to move said grids in one movement rotary.

The patent US-A-5,234,373 describes a unit interior for an air conditioner where there is a grill adjustable that can only turn one way upwards from its closed position, while there is a rotating rear grill in opposite directions from its closed position. It forms a space between the front edge of the front grille and a wall front of an exit door when the front grille is It is in its closed position. In addition, a space can be seen between the front grille and the rear grille, from the point of user view.

Another indoor unit is described below. conventional for an air conditioning system, making reference to figure 33 of the attached drawings. That unit interior comprises a front panel 203, an exit door 201 arranged below the front of the front panel 203 for the discharge of air conditioning in the room, and a step of download 202 to download air conditioning to the door of Exit 201 in a forward and downward direction. The door output 201 is provided with a grid 300 that extends horizontally, which can oscillate around an axis of rotation C to change the air discharge direction vertically conditioned. The grid 300 has a cross section that is curved in order to adapt to the shape of the outer surface of the front panel 203 (convex forward and downward) when stops the operation of the air conditioning system, in order to improve the appearance of the indoor unit (see line with two points of figure 33).

The address of the air conditioner unloaded from the indoor unit can be adjusted to an optimal direction of according to user preferences, even though it is usually a substantially forward direction when it cools and a Direction substantially down when heated. When the grid 300 of the indoor unit is placed in position substantially horizontal (convex down) represented in the Figure 33A, allows to download the air conditioner in one direction forward from exit door 201, and when the grid 300 is arranged in a substantially vertical position (convex backwards), represented in figure 33B, allows you to download the air conditioning in a downward direction from the door of exit 201.

In the event that the air direction conditioner discharged from the indoor unit be changed to a optional address between forward and forward directions below, one end 302 of the grid 300 is always directed towards the upstream of the air conditioner, and therefore the other end 301 is always directed towards the downdraft of the air conditioner between the substantially horizontal position (convex down) represented in Figure 33A and the position substantially vertical (convex backwards) represented in the Figure 33B

Figure 34 shows another example of a unit Conventional interior for an air conditioning system. In this indoor unit, a horizontally extended grid is replaced 310 by grid 300. When grid 310 is arranged in a substantially horizontal position (convex down) represented in figure 34A, the air can be discharged conditioning in a forward direction from the door of outlet 201, and when the rack 310 is arranged in a position substantially vertical (convex forward) represented in the Figure 34B, you can download the air conditioner in a direction down from exit door 201. In case the air conditioning address discharged from the unit interior is changed to an optimal direction between directions forward and down one end 311 of the rack 310 It is always directed towards the upstream of the air conditioning and the other end 312 of it is always directed towards the downdraft of the air conditioner, between the substantially horizontal position (convex up) shown in figure 34A and the substantially vertical position (convex forward) represented in Figure 34B.

In the case of a conventional indoor unit for an air conditioning system, shown in Figure 33, when the grid 300 is disposed in a substantially position horizontal (convex down) represented in figure 33A, the side of one end 302 of the grid 300 is substantially parallel to the flow direction of the air conditioner, so that it is possible to allow the air conditioner to flow without difficulties forward along grid 300.

However, when the grid 300 is arranged in a substantially vertical position (convex backwards), represented in figure 33B, the angle between the side of a end 302 of the grid 300 and the direction of air flow conditioning is large, so that the air conditioning flow collides with grid 300. Therefore, it is not possible to allow the air conditioner flows flatly down the grid 300, and said grid 300 also serves as a baffle plate Against the flow of air conditioning. For this reason, in the state represented in figure 33B, there are problems due to the fact that the discharged air conditioning flow is noticeably reduced and the noise due to the turbulence of the flow of air conditioning.

On the other hand, in the case of an indoor unit conventional for an air conditioning system, represented in Figure 34, when the rack 310 is arranged in a position substantially vertical (convex forward) represented in the Figure 34B, one end 311 of the rack 310 is substantially parallel to the direction of the air conditioning flow, so that it is possible to let the air conditioner flow smoothly towards down along grid 310.

However, when the rack 310 is arranged in the substantially horizontal position (convex up) shown in Figure 34A, the angle between one end 311 of the grid 310 and the direction of the air conditioning flow is greater, so that the air conditioning flow collides with the grid 310. Therefore, it is not possible to let the air flow smoothly conditioned along the rack 310, and said rack 310 It also acts as a baffle plate against air flow conditioned. For this reason, in the state represented in the Figure 34A, there are the same problems that have been mentioned before for the state represented in figure 33B.

So, according to the indoor units conventional ones represented in figures 33 and 34, in case the air conditioning discharge direction be changed sequentially between the forward and downward directions, it is not always possible to let the conditioned air flow with ease along the 300 or 310 grid, so you can't plan to reduce the discharge rate of the air conditioner or the appearance of noise due to air flow turbulence conditioned.

Summary of the invention

Therefore, an object of the present invention is to eliminate the aforementioned problems and provide a indoor unit for an air conditioning system, which allows sequentially change the direction of air discharge conditioning between directions forward and down, at time that allows the air conditioning to flow without difficulty at length of a grid that extends horizontally to ensure a sufficient discharge rate of the air conditioner at the same time which prevents the appearance of noise due to the turbulence of the flow of air conditioning.

This and other objects of the present invention are achieved by an indoor unit as specified in the claim 1. In the other claims, dependent on the claim 1, improvements thereof are specified.

In addition, the control means can control the drive means such that the speed of rotation, during the oscillating movement of the grid that has a section curved transverse is greater than the turning speed during usual swinging movement.

According to this indoor unit, since the speed of rotation during the oscillating movement of the grid is greater than the turning speed during the oscillating movement Inverse usual, it is possible to reduce the time needed to turn the grid in the opposite direction. Therefore, it is possible to reduce the time needed to produce noise due to turbulence of the air conditioner caused by the grill during movement reverse swing.

Also, the control means can control the drive means so that the grid having a curved cross section stop a period of time default immediately before starting the movement of reverse swing.

In addition, the indoor unit may comprise manually operated means to control operation and stopping the driving means to the control means, to move the grid to an optional oscillating position, and in which the means of control serve to control the motor means so that the grid that has a curved cross section stop at a position other than closing when the control means receive a stop order from the manually operated means during the spinning movement of the grid that has a section curved cross.

According to that unit, even if received the order from the manually operated means during the turning movement, the grid can be stopped in one position different from the closing one in which said grid closes the door of outlet, so that it is possible to avoid air discharge conditioned by the grid through which the door of exit. Therefore, it is possible to avoid the production of noise, freezing of heat exchanger when cooled due to reduction of discharge flow and abnormal increase of heat exchanger temperature when heating.

Alternatively, the indoor unit too may comprise: manual actuation means to control the operation and stoppage of the driving means to the means of control, to rotate the rack to an optional oscillating position, and in which the control means control the motor means in a manner that the speed of rotation of the grid, when it occurs automatically the rotational movement of the grid, be higher that the speed of rotation of the grid when the rotation of the grid in response to an entry by the media of manual operation, at least in a part of the turning range of said grid.

According to this indoor unit, since the speed of rotation of the grid when the spinning movement of the grid is greater than the turning speed of the grid when the rotational movement of the grid is caused in response to the input of the manually operated means in at least a part of the range of rotation of the grid, it is possible reduce the time required to move the grid when it occurs automatically the rotational movement of the grid while maintains the turning speed by producing the turning movement of the grid in response to the input of the means of Manual drive, at low speed. Therefore it is possible to reduce the time required to automatically move the grid at least a part of the range of the rotation of the grid, and easily place the position of rotation of the grid by means of manual actuation.

The driving means may include less a stepper motor, which has excitation coils, and that control means vary the speed of rotation of said motor of steps to change the speed of rotation of the grid by switching a stepper motor excitation system between a system single phase excitation and a two phase excitation system.

Alternatively, the driving means can understand at least two engines, and that the control means control the motors so that they run a series of gratings independently.

In the indoor unit, when each of these grilles are placed in the aforementioned closed position, a space between adjacent grilles so that the grilles they rotate without causing interference between the pivot points of the grilles

According to this indoor unit, it is possible prevent the grilles from bumping into each other. Therefore, in case the turning movements of the grilles are carried out independently, no complicated control is necessary in order to prevent the grids from colliding with each other, so that it is possible to more easily provide an indoor unit that has Good air conditioning discharge characteristics.

In the indoor unit, an extreme rear edge of a front grille of the adjacent grilles is located below an extreme front edge of a rear grid of the adjacent grids, when all the grilles are located in the closed position

According to this indoor unit, it is possible avoid damaging the appearance of the indoor unit even if sufficient space is formed between the respective grids.

In the indoor unit, the most advanced grid of said series of grilles is provided so that it rotates only in one direction from the closed position, and the other grid of the grilles are provided so that you can turn in two directions from the closing position, having the other grid the curved cross section.

The most advanced grid of this series of grilles can have a wind deflector surface for divert the air conditioner in a forward direction and up, the wind deflector surface being arranged in an extreme portion downstream, with respect to a flow of air conditioning, a more advanced grid surface, and the most advanced grid in the grid series can form a air conditioning flow to the entrance door from the exit door through the wind deflector surface when the most advanced grid has been turned to a position default

According to this indoor unit, the air conditioning discharged from the exit door, when the dehumification operation of the air conditioning system, it unloading from the exit door to the entrance door without being discharged to the central part of the room, and circulates nearby of the indoor unit, so that it is possible to dehumify the room without feeling cold air. In addition, it is possible safely form a circulatory flow even if the position of grid rotation is slightly offset from the position of optimal rotation, thanks to the presence of the deflector surface of the wind.

The wind deflector surface may be formed so as to divert the air conditioner discharged from the exit door downstream of a peripheral edge of the exit door, when the air conditioning flow is formed flowing from the exit door to the entrance door.

In addition, a wall surface can be formed internal that constitutes the discharge passage next to the door input with a curved surface that projects to the more advanced grid, and the lower end of the curved surface may be located upstream of the deflector surface of the wind in the event that the most advanced grid is placed to form a flow of air conditioning flowing from the door of Exit to the entrance door. Also, a part of the grid upstream of the wind deflector surface may have a shape similar to a plate.

Brief description of the drawings

In the drawings:

Figure 1 is a cross-sectional view. of an indoor unit, in a first embodiment preferred of an air conditioning system;

Figure 2 is a perspective view showing the appearance of the indoor unit of figure 1;

Figure 3 is a perspective view showing a main part of the indoor unit in which the front panel;

Figures 4A to 4D are partial views, in cross section, each of which represents the relationship existing between the turning movement of an extended grid horizontally and the discharge direction of the air conditioner in the indoor unit of figure 1;

Figure 5 is a schematic view showing the scope of the discharge direction of air conditioning in the indoor unit of figure 1;

Figure 6 is a block diagram, schematic, showing a main part of a control circuit in the first preferred embodiment of an air system conditioned;

Figure 7 is a schematic view showing a example of a basic structure of a drive motor of a grid (a stepper motor) of figure 6;

Figure 8 is a block diagram representing an example of the grid drive motor (stepper motor) of Figure 7, and a drive circuit of the grid drive motor;

Figures 9A and 9B are graphs, each of the which shows an example of a system excitation pulse biphasic excitation for the stepper motor of figure 7;

Figures 10A and 10B are graphs, each of which shows an example of an energization imposition of a single-phase excitation system for the motor steps of figure 7;

Figures 11A and 11B are flow charts showing the relationship between the operation of a remote controller of figure 6 and the remote control of a grid that extends horizontally;

Figure 12 is a flow chart for control the rotational movement of a grid that extends horizontally, in a first preferred embodiment of a air conditioning system;

Figure 13 is a flow chart that can be added to the flow chart of figure 12;

Figure 14 is a cross-sectional view. of a main part of an indoor unit in a second way of preferred embodiment of an air conditioning system of the present invention;

Figure 15 is a perspective view of a main part of the indoor unit of figure 13, in which you have disassembled the front panel;

Figure 16 is a block diagram, schematic, showing a main part of a control circuit in the second preferred embodiment of an air system conditioning in accordance with the present invention;

Figures 17A to 17C are partial views, in cross section, each of which shows the relationship existing between the turning movement of a grid that extends horizontally and the direction of discharge of air conditioning in the indoor unit of figure 14;

Figure 18 is a schematic view showing the scope of the discharged address of air conditioning in the indoor unit of figure 14;

Figures 19A to 19E are partial views, in cross section, each of which shows the relationship existing between the turning movement of a grid that extends horizontally and the direction of discharge of air conditioning in a third preferred embodiment of an indoor unit of the present invention;

Figure 20 is a schematic view showing the scope of the air conditioning discharge address in the indoor unit of figure 19;

Figure 22 is a flow chart for control the turning movement of a grid that extends horizontally in the fourth preferred embodiment of a air conditioning system in accordance with this invention;

Figure 23 is a view showing the shape and the desired layout of grilles that extend horizontally;

Figure 24 is a cross-sectional view. showing the movement of the grid of figure 23;

Figure 25 is a view showing another shape and desired arrangement of extending grilles horizontally;

Figure 26 is a view showing another shape and desired arrangement of a grid that extends horizontally;

Figure 27 is a view showing another shape and desired arrangement of extending grilles horizontally;

Figure 28 is a cross-sectional view. of an indoor unit, in the fifth preferred embodiment of an air conditioning system in accordance with this invention;

Figure 29 is a block diagram that represents a refrigeration cycle of an air system conditioning in accordance with the present invention;

Figure 30 is a cross-sectional view. enlarged from a main part of a more advanced grid of the figure 28;

Figure 31 is a cross-sectional view. enlarged from a main part of an output part of a unit interior, in the sixth preferred embodiment of a system of air conditioning according to the present invention;

Figure 32 is a cross-sectional view. enlarged from a main part of an output part of a unit interior, in the seventh preferred embodiment of a system of air conditioning according to the present invention;

Figures 33A and 33B are partial views, in cross section, each of which shows the relationship existing between the turning movement of a grid that extends horizontally and the direction of discharge of air conditioning in a conventional indoor unit for an air system conditioned; Y

Figures 34A and 34B are partial views, in cross section, similar to those represented in the figures 33A and 33B, in another conventional indoor unit for a system of air conditioning.

Description of the preferred embodiments

Referring now to the attached drawings, the preferred embodiments will be described below of the present invention.

However, the embodiment presented as the first preferred in the description and represented in figures 1 to 13, it does not fall within the scope of claims.

First embodiment favorite

Figures 1 to 13 show the first form of preferred embodiment In Figures 1 and 2, an indoor unit U for an air conditioning system is designed to be mounted on a wall in an elevated place in a room. The indoor unit U comprises a front panel 3, an exit door 1 to discharge air conditioning (a cooled air, an air dehumified, heated air or similar) inside the room, and a discharge step 2 to allow the air conditioning flow to exit door 1 in a forward direction and down. The exit door 1 is provided with a grid that extends horizontally 10, which can rotate (move from rotating way) or swing around an axis of rotation C (see the Figure 1) to vertically change the discharge direction of the air conditioning.

The grid 10 is driven by driving means or a grid drive motor M (see figure 3). In the Figure 1, reference number 9 designates a series of grids that extend horizontally arranged upstream of the grid 10 to horizontally change the discharge direction of the air conditioning.

As can be seen in Figure 1, the axis of rotation C is located on the side of one end 11 in the direction of the thickness of the grid 10 (see arrow t of Figure 1). In order to improve the appearance of the indoor unit U, the grid 10 moves oscillating to a closed position (a stop position) O, in which the grid 10 substantially closes the exit door 1, by means of the drive motor of grid M, when stopping the operation of the air conditioning system. The grid 10 has a curved cross section (convex forward and downward) to adapt to the shape of the outer surface of the front panel 3 (see the dotted line of Figure 1). That is, the grid 10 has a cross-section that is curved towards the axis of rotation C at a place that is substantially opposite the axis of rotation C, and has a concave surface 10a on the side of the axis of rotation C and a convex surface 10b on the opposite side of the axis of rotation C.

The cross section of the discharge passage 2 It is defined by a front wall 2a and a rear wall 2b. At discharge step 2 there is a plate-shaped support member 15 to support the grid 10 in the central position thereof with with respect to the axial direction of the axis of rotation C. The support member 15 has a base portion 16, whose two ends are supported in the front wall 2a and in the rear wall 2b, respectively, and a support portion 17 extending forward and towards down from the base portion 16 on the side of the front wall 2nd. On the side of the axis of rotation C of the grid 10, there is a mounting plate 13. The tip part of the mounting plate 13 it is mounted swivel to the tip part of the support portion 17 of the support member 15 at a place of the axis of rotation C.

To aspirate indoor air to be conditioned, the front panel 3 has an entrance door 4 on the surface front of it, and an entrance door 5 on the surface top of it. Inside the front panel 3 there is an exchanger main heat exchanger 6. The main heat exchanger interior 6 comprises a first heat exchanger 6a (see the Figure 3) corresponding to the entrance door 4 and a second heat exchanger 6b corresponding to the entrance door 5. Between the entrance door 5 and the second heat exchanger 6b there is an internal auxiliary heat exchanger 7 (a supercooling heat exchanger). Inside of the interior main heat exchanger 6 (between the first heat exchanger 6a and the second heat exchanger 6b) there is an internal fan 8 cross flow type or cross.

The indoor unit U is intended to vacuum interior air of the entrance doors 4 and 5 by rotating of an internal fan 8. The interior air sucked from the door input 4 goes through discharge step 2 through the first 6a heat exchanger, and the interior air sucked from the door input 5 passes within discharge step 2 through the internal auxiliary heat exchanger 7 and the second heat exchanger 6b.

Referring to figures 4 and 5, the relationship between the rotational movement of the grid 10 and the discharge direction of the air conditioner will be described more Go ahead with detail. Also, the area of inclined lines of the Figure 5 shows the discharge area of a portion of current main that has a flow rate greater than a speed default (same as in figures 18 and 20 that will be described below).

As shown in Figure 4C, the grid 10 can swing or rotate within a range of about 180 degrees between a position in which one end 11 of the grid 10 is directed towards the upstream of the air conditioner when the grid 10 is substantially parallel to the direction of discharge of the air conditioner flowing through the passage of discharge 2, and a position in which the other end 12 of the grille 10 is directed towards the upstream of the air conditioned when the grid 10 is substantially parallel to the direction of the air conditioning flowing through of discharge step 2, passing through the stop position. In addition, the support member 15 is formed such that it does not interfere with the swing movement of the grid 10.

The grid 10 allows the discharge of air conditioning in a forward direction, from the exit door 1, when the grill 10 is arranged in a substantially horizontal position, as it appears in Figure 4A, that is, when the concave surface 10a It is directed substantially upwards (see sign a of Figure 5). The grid 10 also allows the discharge of air conditioning in a downward direction from the exit door 1 when the grill 10 is arranged in a substantially vertical position, as shown in Figure 4B, that is, when the concave surface 10a is steer substantially backward (see sign d in figure 5). When the discharge direction of the air conditioner is changed from the forward direction to the downward direction, the grid 10 is subjected to the following movements.

(1) First, the grid 10 is rotated from the substantially horizontal position (see Figure 4A), to direct one end 11 (the front end) of the grid 10 downward, so that the concave and convex surfaces 10a, 10b of the grill 10 are substantially parallel to the direction of the air conditioner flowing through the discharge passage 2 (see Figure 4A). During the aforementioned movement, the discharge direction of the air conditioner continuously varies from the forward direction to the forward and downward direction, according to the change in the rotation position of the grid 10 (see signs a and b of figure 5).

(2) Next, the grid 10 oscillates substantially 180 degrees in an opposite direction so that the positions of one end 11 and the other end 12 of the grid 10 have mutually exchanged. During reversal or turning movement in the opposite direction, the grid 10 passes through its stop position or its closed position (see arrow γ in Figure 4C). In this case, the discharge direction of the air conditioner, once the investment has been made, is slightly deviated downwards compared to the state before the inversion (see sign c of Figure 5).

(3) Then, the grid 10 is rotated, to a substantially vertical position (see Figure 4D), in order to direct the other end 12 (the lower front end) thereof downwards. During this oscillating movement, the discharge direction of the air conditioner continuously changes from the forward and downward direction to the downward direction, according to the change in the rotation position of the grid 10 (see signs c to d in Figure 5).

The aforementioned movements of the grid 10, to change the download direction from up to towards below, they will be referred to below as a "movement descending (from grid 10) ". This movement is the same in the case of a grid 20 in a second and third form of realization that will be described later.

Also, in this specification, the term "upstream" means "upstream with with respect to the direction of the air conditioning flow ", and the term "downdraft" means "downstream with respect to the direction of the air conditioning flow ". In addition, each movement, mentioned in the previous sections (1) and (3) refers to a "usual turning movement" and the movement mentioned in the previous section (2) refers to a "turnaround movement".

On the other hand, in a case where the discharge direction of the direction air conditioner towards down to the forward direction, the grid 10 is rotated, from the substantially vertical position (see figure 4D) to the substantially horizontal position (see figure 4A), with movements opposite to the aforementioned movements (1) - (3). The aforementioned movements of the grid 10, to change the download direction from down to up, will be indicated hereinafter as an "upward movement (of grid 10)". This movement is the same in the case of a grid 20 in the second and third preferred embodiments to be described later.

In case the grid 10 oscillates towards up and down, a part of the spinning movement of the grid 10 during its inversion (see Figure 4C) will be hereinafter referred to as "a discontinuous part of the address discharged from air conditioning ", and the other part during the usual turning movement of the grid 10 will be called, then, as a "continuous part of the address discharged from air conditioning "(these parts are the same in the case of a grid 20 'in the second and third form of embodiment that will be described later).

As shown in Figure 6, the indoor unit U has manual drive means or a remote controller R to transmit an infrared signal or a remote control signal in order to remotely control the oscillating movement of the grid 10. The indoor unit U also has a receiver unit 25 (see figures 2 and 3) to receive the remote control signal transmitted from the controller to distance R, and reception sound production means 26 to generate a reception sound in response to the signal from remote control received by the receiving unit 25. In addition, the indoor unit U has an input inspection means (a switch arranged in the body of the indoor unit) 29 to check the movement of the grid 10 when the product is inspect before being issued or similar.

In addition, the indoor unit U has a unit of control 27, and a drive circuit 28 to activate the motor of operation of the grid M. The control unit 27 activates the grid drive motor M by means of the circuit drive 28 in response to the remote control signal (input) of the remote controller (the drive means manual) R received by the receiving unit 27, to control the oscillating movement of the grid 10.

When it starts up or stops the system air conditioning, control unit 27 controls the operation of the grid drive motor M in order to automatically produce the oscillating movement of the grid 10 a a predetermined position (for example, the aforementioned stop position). In addition, the control unit 27 controls the motor grid drive M in response to input from the aforementioned means of entry inspection 29 because of the oscillating movement of the grid 10.

With reference to figures 7 to 10, the engine of grid drive M and drive circuit 28 They will be described below in detail.

The grid drive motor M It comprises a stepper motor. As an example of one such engine of steps, a PM type motor is shown in figure 7. In the Figure 7, the stepper motor comprises a rotor 50 having a pole north and a south pole, and a stator 52 that has four portions of excitation coil \ phi1 to \ phi4 that are displaced 90 degrees of the adjacent excitation coil portion. Further, there are switches SW1 to SW4 that correspond to the portions of excitation coil \ phi1 to \ phi4 of stator 52. When connecting said switches SW1 to SW4, pass currents through the corresponding portions of excitation coils? 1 to 44 from a DC voltage source 60, so that the portions of excitation coils \ phi1 to \ phi4 are excited (up the south pole).

In the stepper motor of this construction, when Only switch SW1 is switched on, the coil portion is excited excitation \ phi1 (up the south pole) to attract the north pole of the rotor 50 (the state shown in Figure 7). Then at switch off switch SW1 and just switch on SW2, the excitation coil portion ph2 is excited to attract the north pole of the rotor 50 in order to rotate 90 degrees the 50 rotor clockwise. When they energize sequentially the portions of the excitation coil? 1 to \ phi4 switching switches SW1 to SW4 in the order of \ phi3 \ rightarrow \ phi4 \ rightarrow \ phi1 ..., the rotor 50 can be turned clockwise every 90 degrees. In order to reverse the direction of rotation of the rotor 50 to that said rotor 50 rotate counterclockwise, the order of excitation of the excitation coil portions \ phi1 to \ phi4 can be reversed to make it \ phi4 \ rightarrow \ phi3 \ rightarrow \ phi2 \ rightarrow \ phi1 \ rightarrow \ phi4 ..., which is the opposite of order of excitation in the case of turning in the direction of the needles of the clock.

As can be seen in Figure 8, the circuit drive 28 to activate the drive motor of the grid comprises a distribution circuit 65, to which it is sent a clock pulse 62, and an excitation circuit 66, to which it is connected a continuous voltage source 60. The circuit of distribution 64 serves to determine the order of energization of the portions of the excitation coil \ phi1 to \ phi4 of the motor of steps. The excitation circuit 66 serves to use a signal of input (an energizing pulse) emitted from the circuit distribution 64 to energize the coil portions of excitation \ phi1 to \ phi4 by a predetermined voltage and by a predetermined excitation system. The clock pulse 62, introduced to the distribution circuit 64, is an impulse signal which has a predetermined frequency. When you change the frequency (pulse per second) of the clock pulse 62, the output frequency of the energizing pulse emitted from the distribution circuit 62 changes, so that the speed of Step motor rotation can be varied.

Figures 9 and 10 show output signals (energizing pulses) of distribution circuit 64, together with the impulse of the clock 62. Figure 9 shows an impulse of energization of a two-phase energization system or a system biphasic excitation to energize the coil portions of excitation ph1 to ph4 of the stepper motor every two phases. The Figure 10 shows an energizing pulse of a system of single-phase energization or a system of single-phase excitation to carry out, alternatively, a single phase energization system (a system single phase excitation) to energize the coil portions of excitation \ phi1 to \ phi4 of each phase, and the system of biphasic energization The energization system mono-biphasic represented in figure 10 requires a number of impulses, which is twice as large as the system of biphasic energization represented in figure 9, in order to get the same number of revolutions (angle of rotation). Is that is, the ratio of the speed of rotation of the stepper motor in the two-phase energization system with respect to the speed of rotation of it in an energization system mono-biphasic is 1: 2 with respect to the impulse of clock 62 of the same frequency (see Figures 9A and 10A).

Also, even when the torque of the stepper motor usually decreases when the pulse output frequency increases of energization, the torque of the stepper motor does not change only switching the energization pulse energization system between mono-biphasic energization systems and biphasic

The control unit 27 can change the rotational speed of the grid drive motor M based on the aforementioned step motor properties. By example, it is assumed that the rotational speed of the stepper motor, which it is rotated by the energizing pulse of a frequency normal default output in the energization system mono-biphasic represented in figure 10A, is a normal rotation speed. In the same energization system mono-biphasic represented in figure 10B, if three times the frequency of clock pulses 62, so that the output frequency of the energizing pulse increases until triple the normal default output frequency which has been indicated before, a turning speed can be obtained which is three times greater than the usual turning speed.

In addition, as can be seen in Figure 9B, in the two-phase energization system, if the frequency of the clock pulse 62 once and a half, so that the frequency of output of the energized impulse is increased to be once and average higher than the aforementioned normal output frequency, may achieve a rotation speed three times (2 x 1.5 times) greater of the normal rotation speed, even when the engine torque of Grid drive M is reduced slightly.

Likewise, a speed of double rotation of the usual rotation speed without reducing torque, just by switching the engine energization system of grid drive M of the energizing system mono-biphasic to the biphasic energization system. In this case, since the torque of the drive motor of the M grid does not vary, it is possible to maintain a good rotation even if a load is applied to the grid 10.

The control unit 27 can determine the current position of the grid 10, from an initial position grid default, based on the order and number of energizing pulses applied to the drive motor of the grid or stepper motor M. That is, it can be determined, based on of the order of energizing impulses, whether the direction of rotation of the grid 10 is clockwise as in counterclockwise, and the angle of rotation in the direction of rotation can be determined based on the number of energizing impulses For example, assuming the position initial mentioned above is 0 and the rotation in the direction of the clockwise is expressed by "+" (positive) and the turn counterclockwise is indicated by "-" (negative), and a stepper motor that rotates 0.5 is used degrees each pulse (having a tilt angle of 0.5 degrees), the direction and degree of the angular movement of the grid 10 from the initial position can be obtained by addition and / or subtraction based on the direction of rotation and number of energizing impulses.

Also, a current motor can be used alternating or conventional direct current for the motor grid drive, however, in such case, in order to determine the rotation position of the grid 10, it is necessary provide an additional position sensor to detect the position of rotation of the grid 10.

The control unit 27 makes the means of reception sound production 26 produce a predetermined Receive sound in response to a remote control signal received by the reception unit 25. The reception sound produced by the reception sound production means 26 during the inversion of the grid 10, as can be seen in the Figure 4C, is different from the reception sound produced by the means producing the reception sound 26 in other periods of time, as it appears in figures 4A, 4B and 4C. As methods to produce different reception sounds, the colors of hue (such as frequency components of sounds) of the reception sounds may be different, or the sounds of reception can occur at different intervals (for example, a reception sound like "pipitt-pipitt" or "pii-pii", which is different from a sound of reception such as "pitt-pitt").

Referring to figures 11 and 12, a a method for changing the position of rotation of the grid 10 by means of the remote controller (the manually operated means) R.

As can be seen in the flow chart of the Figure 11A, the remote controller R can transmit a signal of grid movement in order to start the oscillating movement or rotation movement of the grid 10, once pressed a button grid drive (not shown), and a signal of grid stop to stop the oscillating movement of the grid 10 when the drive button of the grating.

Alternatively, as can be seen in the flow chart of figure 11B, the remote controller R can transmit a grid motion signal to start the oscillating movement of the grid 10 when the grid drive, and a grid stop signal to stop the oscillating movement of the grid 1o when releasing the grid drive button once the grill has moved 10 oscillatingly to a desired position, by pressing continuously the grid drive button.

In the flowchart of Figure 12, the expression "grid positions d (m)" means the respective rotational positions of the grid 10 represented by the solid lines of figures 4A to 4D. In this case, the values of m = 1 \ sim4 are assigned to the corresponding grid rotation positions 10 represented by lines Continuous figures 4A to 4D. In addition, the expression "position of the grid d (0) "means the aforementioned position of closure (see grid 10 represented by the dotted line of figure 1). Also, the expression "n = 0" means the previously cited "downward movement of the grid 10", and the expression "n-1" means the aforementioned "upward movement of the grid 10".

In Figure 12, first set n = 0 (corresponding to the downward movement of the grid 10) in the phase 70. Then, when in phase 71 it is determined that the operation of the air conditioning system, the grid 10 is automatically moves from the closed position d (0) to the grid position d (m) corresponding to the mode of operation (phase 76). In this case, for example, m = 3 is set to heating mode of operation, and m = 1 is set to cooling mode of operation.

On the other hand, when in phase 71 it is determined that the air system operation has not started conditioning, and when it is determined in phase 72 that the system of Air conditioning does not work. Said air system conditions remains on hold (phase 75). When determined, in phase 72, that the air conditioning system works and is determined, in the phase 73, that the operating stop signal has been received from the remote controller R, the process of stop to automatically move the rack to the position of stop or close position d (0) (phase 74), and a then the air system remains on hold (phase 75) conditioned.

When the grid 10 automatically moves in phase 76 or 74, the speed of oscillation or rotation of the grid 10 is set to be three times greater than the speed of usual turn. In this case, the swing speed of the grid 10 is changed by varying the engine rotation speed of grid drive (the stepper motor) by means of the control unit 27, as described above.

Then, in the first loop, when it has determined, in phase 77, that the signal has been received from grid movement from the remote controller R once has started operation or during operation, in the phase 78 it is determined that n = 0 (during the "movement descending ") and in phase 79 that m \ neq4, so that states that m = m + 1 in phase 85. Then, when it has been determined in phase 86 that m = 3 (corresponding to the investment or change of direction of movement of the grid 10 during the "movement descending ", the rotational movement of the grid 10 is established to be three times the usual turning speed (phase 89), and when it is determined in phase 86 that m \ neq3, the speed of rotation of the grid 10 is set at the usual turning speed (phase 88).

On the other hand, in and after the second loop, when it is determined in phase 78 that n \ neq0 (not during the "upward movement"), and when determined in phase 81 that m = 1, returns to n = 0 (during the "downward movement") (phase 82). When it is determined in phase 81 that m \ neq1, it set m = m-1 in phase 83. So when determines, in phase 84, that m = 2 (corresponding to the investment or change of direction of the rotation movement of the grid 10 during the "upward movement", the speed of oscillation or rotation of grid 10 is set to triple the usual speed of turn (phase 89), and when it is determined in phase 84 that m \ neq2, the speed of rotation of the grid 10 is set to be the usual speed of rotation (phase 88).

Then, the grid 10 moves to the position of grid d (m) at the speed of rotation established in phase 88 or 89 (phase 90). That is, as it appears in Figure 4C, in the if the grid reverses its movement from the position of grid d (2) (indicated in the figure by the line with two points) to grid position d (3) (represented by line continuous) during the downward movement (n = 0), or in case the grid 10 reverses its movements from the grid position d (3) (indicated with solid line) to the grid position d (2) (represented by the colon) during the upward movement (n = 1), the rotation speed varies to triple the usual swing speed.

So, when it is determined, in phase 91, that a grid stop signal is received (during the movement of grid 10), and when it is not determined, in phase 92, that the grid 10 reverses its movement (n = 0 and m = 3, or n = 1 and m = 2), the oscillating movement of the grid 10 closes to the current position (phase 95). On the other hand, if it is determined in phase 92 that it has been inverted the movement of the grid 10 (n = 0 and m = 3, or n = 1 and m = 2), grid 10 moves to grid position d (2) or to the grid position d (3) (the investment is complete), and then, the rotational movement of the grid 10 stops (phase 94).

That is, while the grid 10 is inverted through the closing position d (0) in which the exit door 1, even if the grid stop signal is received from the remote controller R, the grid 10 stops at the grid position d (2) (during "movement ascending "(n = 1)) instead of the closing position d (0) in that exit door 1 is closed. On the other hand, when determines, in phase 91, that no signal has been received from grid stop and when, in phase 93, it is determined that the grid 10 has not reached the grid position d (m), the movement of the grid 10 towards the grid position continues d (m) (phases 93 \ rightarrow90 \ rightarrow91 \ rightarrow93). When it is determined in phase 91 that no one has been received grid stop signal and when determined, in phase 93, that the grid 10 has reached the grid position d (m), the routine returns to phase 78, and then, the grid 10 moves towards the next grid position d (m).

Also, in the latter case, once the grid 10 reaches the grid position d (4) during the "downward movement" (n = 0), must be determined in phase 79 that m = 4, so that m = 1 (during "upward movement") is set in phase 80 and m = 4-1 = 3 is set to phase 83. That is, the movement of the grid 10 is switched from "downward movement" (n = 0) to "upward movement" (n = 1).

With this construction, the advantages of this form of preferred embodiment will be described below.

In accordance with this embodiment preferred, if the direction of the air conditioner unloaded by the indoor unit U switch between the addresses Forward and downward, surfaces 10a can be maintained, 10b of the upstream portion of the grid 10 (the other end 12 in Figures 4AQ and 4B, and end 11 in Figures 4C and 4D) so that they are parallel to the direction of air flow conditioning inverting the grid 10 approximately 180 degrees (see figure 4C).

Therefore, it is possible to sequentially change the air conditioning discharge address, from the address forward to the direction down and from the direction towards down to the forward direction, while letting the air conditioning flow smoothly along the grid 10 which It has the curved cross section.

Also, while grid 10 is inverted through the closed position d (0) in which the door of output 1 is closed (see figure 4C), even if received the grid stop signal of the remote controller R, is possible to stop the grid 10 in a position other than the position of closing d (0) in which the exit door 1 is closed, so that the discharge of the air conditioner is not blocked through the grid 10 with which the exit door 1 closes. consequently, it is possible to prevent air discharge conditioning is blocked by grid 10, so you can avoid the appearance of noise, freezing the exchanger of heat 6 due to reduced discharge flow when the air conditioning system works in refrigeration, and the abnormal heat exchanger temperature increase 6 when The air conditioning system works on heating.

Also, if the grid 10 oscillates in response to the signal of movement of the grid emitted from the remote controller R, the rotational speed of the grid 10 during the inversion of the movement (the "change of direction of turning movement ") is greater than the turning speed during normal oscillating movement (the "usual turning movement") of so that the time needed to reverse the grid 10 can reduce. As a result, it is possible to reduce the time in which noises due to air turbulence appear flowing conditioning caused by grid 10 during the investment process

Also, when it starts up or for the Air conditioning system operation, the speed of rotation of the grid 10 during the automatic oscillation movement is greater than the usual rotation speed of the grid 10 when oscillates in response to the motion signal of the emitted grid from the remote controller R (except during the process of grid inversion 10), so that the time can be reduced required to move grid 10 when swinging through of the remote controller R. Therefore, it is possible to reduce the time needed to automatically move grid 10 when starts up or for the operation of the air system conditioning, and it is also possible to easily carry out the placement of the rotation position of the grid 10 by means of the remote controller R.

Also, when the grid 10 of the unit interior U is oscillated by means of the remote controller R, it is possible to recognize the difference between the period of grid inversion 10, and the other time periods, based on the reception of sounds. Therefore it is possible reduce a sense of inconsistency when working with the remote controller R.

In addition, in this preferred embodiment, the control indicated in the flow chart of figure 13 can be added to the rotation control of the grid 10 represented in the flow chart of figure 12. In figure 13, if determine, in phase 93 of Figure 12, that the position of the grid 10 is the grid position d (2) during the "downward movement" (n = 0) (position immediately prior to the investment represented by the continuous line in the Figure 4B), or if it is determined that the grid 10 is placed in the grid position d (3) during the "upward movement" (n = 1) (position immediately before the investment indicated with a continuous line in Figure 4C) (phrase 94), the operation of the drive motor stops of the grid M, so that the grid 10 stops at the grid position d (2) or d (3) (phase 95). Unless the grid stop signal is received from the controller to distance R, the operation of the drive motor of the grid M stops until a period of time elapses predetermined, so that the position of the grid 10 is keeps in the grid position d (2) or d (3) (phases 96 and 97).

If the time period elapses default without receiving a grid stop signal in the phase 96, the routine returns to phase 78, represented in the figure 12, starting the movement of the grid 10 towards the next grid position (the reverse operation represented in the Figure 4C) (phase 90 of Figure 12). On the other hand, when receives the grid stop signal in phase 96, before after the predetermined period of time in phase 97, the routine returns to phase 70 indicated in figure 12. Then, unless the operation stop signal is received (phase 73) or the grid movement signal (phase 77), as can be seen in Figure 12, continues the operation while maintaining the grid position 10 in grid position d (2) immediately before the investment (during the "movement descending "(n = 0)) or to the grid position d (3) (during "upward movement" (n = 1).

According to the aforementioned control, represented in the flow chart of figure 13, while stops the operation of the grid drive motor M for a predetermined period of time immediately before reverse the movement of the grid 10, shown in the figure 4C, it is possible to order the stop of the drive motor of the M grid by means of the remote controller (the means of manual drive) R (phase 96). Therefore, when a user try to move or stop the grid 10 in the turning position immediately prior to the inversion of the movement (that is, the grid position d (2) (during the "movement descending "(n = 0)) or in the grid position d (3) (during "upward movement" (n = 1) by means of remote controller R, it is possible to avoid reversing movement of the grid 10 made due to the delay in the remote controller operation R, so that it can avoid the situation in which the grid 10 cannot stop at the position cited above. Therefore, it is possible to carry out easily stop operation of the grid 10 to a position immediately before the investment, through controller remote R.

Second embodiment favorite

Figures 14 to 18 show the second form of preferred embodiment of the present invention. In addition, in this form of preferred embodiment, depicted in Figures 14 to 18, is use the same reference numbers for the same elements already cited in the first preferred embodiment, shown in Figures 1 to 13, omitting their descriptions.

As can be seen in Figure 14, a unit interior U 'for an air conditioning system has, in this preferred embodiment, an exit door 1, and two grilles that extend horizontally 20 and 30 to change vertically the discharge direction of the air conditioner. The grilles 20 and 30 can be oriented or rotated around axes C1 and C2 parallel to each other, respectively. The grid 20 is arranged next to a rear wall 2b of a discharge passage 2 and it has substantially the same shape as the grid 10 of the before mentioned first preferred embodiment. On the other hand, the grid 30 is arranged next to a front wall 2a of the discharge step 2 and has a substantially cross section plate-shaped The grid 30 has one end 31 and another end 32

The grilles 20 and 30 are moved by motors of grid drive M1 and M2, respectively (see figure 15). Similar to the grid drive motor M in the first preferred embodiment mentioned before, the grid drive motors M1 and M2 can be stepper motors capable of detecting the turning positions of the grilles 20 and 30 by means of a control unit 27, respectively.

The rotation axes C1 and C2 are left sideways of one end 21 of the grid 20 and a portion substantially grid center 30, respectively, and are offset from the grilles 20 and 30 in the sense of their thickness, respectively. In order to improve the appearance of the unit inside U ', when the operation of the air system is stopped conditioned, the grid 30 oscillates to a position (a position of stop or closing position represented in figure 14) in which the exit door 1 is partially closed by grid 30 at length of the front surface 3a of a front panel 3, and the grid 20 oscillates to a position (a stop position or position of closure shown in figure 14) in which the exit door 1 is partially closed by the grid 20 substantially at along an imaginary surface S that connects the other end 32 or lower end 32 of the grid 30 to a lower surface 3b of the front panel 3 and which is arranged on the surface imaginary S, by means of grid drive motors M1 and M2, respectively.

In download step 2 there is a member of plate-like support 35 to support the grilles 20 and 30 in the same, for the central portion of these with respect to the axial directions of the rotation axes C1 and C2. The member of support 35 comprises a base portion 36, both ends of which they are supported on the front wall 2a and the rear wall 2b, a support portion 37 extending from a portion substantially central of the base portion 36 in one direction forward and downward, and a support portion 36 that is extends along the front wall 2a from the base portion 36 on one side of the front wall 2a in the forward direction and down. Further. Grids 20 and 30 are provided with mounting plates 23 and 33 corresponding to the support portions 337 and 38 of the support member 35 on the side of the axes of rotation C1 and C2, respectively. The tip portions of the plates assembly 23 and 33 are rotatably connected to the portions of the tip of the support portions 37 and 38 of the member of support 35 in the positions of the rotation shafts C1 and C2, respectively.

As can be seen in Figure 16, so similar to the aforementioned first embodiment preferred, the air conditioning system in this form of preferred embodiment has a remote controller R. The unit interior U 'has a receiving unit 27, producing means of reception sound 26 and a control unit 27, which are the same as those of the indoor unit U of the aforementioned First preferred embodiment. In addition, the indoor unit U 'has a drive circuit 28a to drive the motors of grid operation M1 and M2.

Drive circuit 28a has been designed to selectively drive any of the motors of grid drive M1 and M2 adding a relay circuit to the same circuit as drive circuit 28 in the first Preferred embodiment mentioned above. Unit control 27 is designed to drive any of the motors of grid drive M1 and M2, through the circuit of drive 28a, in response to a remote control signal from the remote controller R received by the unit receiver 25, so that the rotation movement of the grilles 20 and 30.

Referring to figures 17 and 18, the relationship between the rotational movements of the grilles 20 and 30 and the address discharged from the air conditioner will be described then.

First, as can be seen in Figure 17B, similar to grid 10 in the aforementioned first preferred embodiment, the grid 20 can oscillate in a reach about 180 degrees, passing through the aforementioned position of stop or closing position, between a position A (see grid 20 represented by lines with two points in figure 17B) and one position B (see the grid shown with the solid lines in the Figure 17B). When the grid 20 is located in position A, a end 21 of the grid 20 is directed towards the stream ascending of the air conditioner, and surfaces 20a, 20b of the grid 20 are substantially parallel to the direction of the air conditioner flowing through discharge passage 2, and when the grid 20 is located in position B, the other end 22 of the grid 20 is directed towards the upstream of the air conditioning, and grid surfaces 20a, 20b are found substantially parallel to the air direction conditioning flowing through discharge passage 2.

On the other hand, the grid 20 can oscillate in a range of about 130 degrees between a substantially position vertical (position G), in which the other end 32 is directed towards the upstream of the air conditioner as shown in the Figure 17B, and the stop position or closed position represented in Figure 14. That is, the grid 20 can rotate in two opposite directions from its closed position, and the grid 30 can rotate only in one direction apart from its position of closing. Also, the support member 25 is formed so that does not interfere with the turning movement of the grilles 20 and 30.

In this preferred embodiment, case of change the direction of the air conditioner discharged from the direction forward to the direction down (during the "downward movement" of the grid 20), the grilles 20 and 30 oscillate according to the following route:

(1) First, when the grill 20 is in position A and the grill 30 is substantially in a horizontal position (ie, in position E, see the line with two points in Figure 17A), air conditioning is discharged from exit door 1 in a slightly upward and forward direction (see sign e in figure 18). Starting from this state, downwards, the grill 30 moves to the G position when one end 31 or the front end of the grill 30 oscillates to change the discharge direction of the air conditioner from the slightly upward and forward direction to a forward and downward direction (see figure 17A and the signs e and f of figure 18).

(2) Starting from this state, when one end 21 or the lower front end of the grid 20 oscillates upwards by 180 degrees, the grid 20 is placed in a position B, so that the positions of one end 21 and the other end of the grid 20 are substantially interchanged with each other (see arrow γ of Figure 17B). In this case, the discharge direction of the air conditioner, after the inversion (change of direction of movement), is changed to a position slightly lower than that existing before the inversion (see the two-dot line of Figure 17C and the g sign in figure 18).

(3) Starting from this state, when the other end 22 or the lower front end of the grid 20 oscillates downwards, the grid 20 moves to a substantially vertical position (position B ') in order to change the discharge direction of the air conditioning from one direction forward and downward to the direction downward and slightly backward (towards the wall surface) (see Figure 17C, and the signs g and h of Figure 18).

In the opposite case, that is, if change the discharge direction of the air conditioner from the direction down to the forward direction (during the "upward movement" of the grid 20), the grilles 20 and 30 oscillate according to the turn route opposite to the one mentioned above turn route

In addition, a method to change the positions of rotation of the grid 20 and 30 using the remote controller (the manual drive means) R, in this embodiment preferred, it is the same as in the flow chart of figure 12 for the aforementioned first preferred embodiment, with the exception that the assignments of the grid positions d (m) are performed as follows. That is, in this way of preferred embodiment, m = 1 is assigned to the state in which the grid 30 is located in position E represented by the line with two points in figure 17A, m = 2 is assigned to the state in which the grid 30 is in position G, represented by a continuous line in Figure 17A, m = 3 is assigned to the state in which the grid 20 is located in position B indicated with a continuous line in the Figure 17B, and m = 4 is assigned to the state in which the grid 20 is located in position B 'represented with a continuous line in the Figure 17C Further. The grid positions d (0) show the aforementioned closing positions or stopping positions of grid 20 and 30 (see figure 14).

According to the preferred embodiment, cited above, it is possible to change more broadly and effectively the discharge direction of the air conditioner than in the first way of preferred embodiment, swinging the grid 20, which substantially the same as the grid 10 in the first form of preferred embodiment depicted in Figures 1 to 13, and the grid 30, respectively (see the comparisons of the figures 4 and 17, and figures 5 and 18). Consequently, the performance of an air conditioning system without harming the aspect of an indoor unit when the functioning.

Third embodiment favorite

Figures 19 to 21 show the third form of preferred embodiment of an indoor unit according to the present invention In this preferred embodiment, represented in figures 19 to 21, in case the air conditioning address discharged from an indoor unit U 'between a downward direction and a forward direction, the aforementioned routes of the grilles, the below mentioned routes of rotation of the grilles 20 and 30, are different from those described above for the second preferred embodiment of the invention (figures 17 and 18). With respect to other constructions, this form of preferred embodiment is equal to the aforementioned second form of preferred embodiment, represented in Figures 14 to 16.

In this preferred embodiment, case of change the direction of the air conditioner discharged from the unit inside U 'from the direction forward to the direction towards below (during the "downward movement" of the grid 20), grilles 20 and 30 oscillate according to the following route:

(1) First, similarly to the aforementioned second preferred embodiment shown in Figure 17A, when one end 31 or the front end of the grid 30 oscillates downward from a state in which the grid 20 is located in the position A and the grill 30 is in position E, the grill 30 moves to position G to change the discharge direction of the air conditioner from a slightly ascending direction and forward to a forward and downward direction (see figure 19A, and the signs e and f of figure 20).

(2) From this state, when one end 31 or the lower end of the grid 30 swings upwards, the grid 30 returns to position E (see Figure 19B). Then, when one end 31 or the lower front end of the grid 20 rotates upwards about 180 degrees until the movement is reversed (see arrow γ of Figure 19C), the grid moves to position B. In this case , the discharge direction of the air conditioner is divided between a forward direction defined by the grid 30 (see the line with two points in Figure 19D) and a forward and downward direction defined by the grid 20. The discharge direction defined by the grid 20 inclines slightly downwards (see the solid line of figure 19D and the sign i of figure 20) in comparison with the direction represented by the continuous line of figure 19A (see the sign f of figure twenty).

(3) From this state, when one end 31 or the front end of the grill 30 swings down, the grill 30 moves back to position G, to change the discharge direction of the air conditioner defined by the grill 30 from the forward direction to a direction parallel to the discharge direction defined by the grid 20 inclined in the forward and downward direction (see the solid line of Figure 19D and the j sign of Figure 20).

(4) from this state, when the other end 22 or the lower front end of the grill 20 swings down, the grill 20 moves to position B 'to change the discharge direction of the air conditioner from the direction towards forward and downward in the downward and slightly backward direction (towards the wall surface) (see Figure 19E and signs j to h of Figure 20).

Moreover, if the address of air conditioning discharge be changed from the direction towards down to the forward direction (during the "movement ascending "of the grid 20), the grilles 20 and 30 oscillate following turning routes opposite to the aforementioned turning routes, respectively.

Referring to the flow chart of the Figure 21, a method for changing the rotating positions of the grilles 20 and 30 by means of the controller remotely (manually operated means) in this form of preferred embodiment In addition, in the flow chart of the figure 21 the same reference numbers are used for the same phases that appear in the flowchart of figure 12, in the above mentioned first preferred embodiment, so their descriptions are omitted.

In Figure 21, the assignments of corresponding grid positions f (m) are set from next way. Namely, m = 1 is assigned to the state in which the grid 30 is located in position E, represented by the line with two points in figure 19A, m = 2 is assigned to the state in which the grid 30 is located in position G, represented by the continuous line in figure 10A, m = is assigned to the state in which the grid 20 is located in position B, represented by the continuous line in the Figure 19C, m = 5 is assigned to the state in which the grid 30 is found in position G, represented by the continuous line in the Figure 19D, and m = 6 is assigned to the state in which the grid 20 is located in position B ', represented by the continuous line in the Figure 19E The grid positions f (0) indicate the stop positions or closing positions of the grilles 20 and 30 (see figure 14). In addition, n = 0 means the "movement descending "of the grid 20 and n = 1 means the" movement ascending "of the grid 20.

In phase 76 'of Figure 21, which corresponds to phase 76 of figure 12, for example, m = 5 is set in the mode of operation in heating, and m = 1 is set in the operating mode in refrigeration. In phase 74 'of the Figure 21, corresponding to phase 74 of Figure 12, the grilles 20 and 30 oscillate at stop positions f (0). In the phase 79 'of figure 21, which corresponds to phase 79 of figure 12, at and after the second loop it is determined that m = 6 after that the grilles 20 and 30 reach the grid positions f (6) during the downward movement (n = 0), so that n = 1 (during the upward movement) is set in phase 80 and m = 6-1 = 5 is set in phase 83. That is, the movement of grilles 20 and 30 changes from the "movement descending "(n = 0) to" upward movement "(n = 1).

Phases 84 'and 86' of Figure 21, which correspond to phases 84 and 86 of figure 12, m = 3 and m = 4, it substitute for m = 2 and m = 3 in phases 84 and 86 of figure 12, respectively. Given the investment (change of direction movement) of the grid 10, in the first preferred embodiment that described above, it happens that the grid 10 is changing its own position from position d (2) to position d (3) during the "downward movement" (n = 0) of the grid 10, and when grid 10 is changing its position of the position d (3) to position d (2) during "upward movement" (n = 1) of the grid, however, the inversion of the movement of the grid 20, in this form of preferred embodiment, occurs when the grid 20 is changing its own position from position f (3) to the position f (4) during "downward movement" (n = 0) and when the grid 20 is changing its own position from the position f (4) to position f (3) during "upward movement" (n = 1).

For the same reason, in phase 92 'of the figure 21, which corresponds to phase 92 of Figure 12, m = 4 and m = 3 are substituted by m = 3 and m = 2 in phase 92 of figure 12, respectively. Also, phases 93 'and 94' of Figure 21 are equal to phases 93 and 94 of figure 12, except for the fact that the grid positions f (m) are replaced by the grid positions d (m) in phases 93 and 94 of the figure 12. With this construction, the following will be described operation of this preferred embodiment.

In this preferred embodiment, the oscillating route of the grid 30 with respect to the grid 20 differs from the second preferred embodiment represented in Figures 17 and 18, so that the area of the air conditioner discharged in the direction can be increased forward and downward for a wider area than indicated in the aforementioned second preferred embodiment (see Figure 19D, and the comparison of the signs f \ g g of Figure 18 and the signs f \ sim i \ sim h of figure 20).

In addition, similar to phase 76 or 74 in the flow chart of figure 12, in the first form of preferred embodiment mentioned above, in phase 76 'or 74' of the flow chart of Figure 21, in this embodiment preferred, the rotational speeds of the grids 20 and 30 are set three times higher than usual spin speeds when grilles 20 and 30 move automatically. In addition to similar to the flowchart of Figure 12, in the before mentioned first preferred embodiment, a additional control, corresponding to the flow chart of the figure 13, to control the rotation of the grilles 20 and 30, shown in the flow chart of Figure 21, in this embodiment preferred.

While the indoor unit U has been provided with a simple grid 10, in the aforementioned first form of preferred embodiment, and the indoor unit U 'has been provided with two grilles 20 and 30 in the aforementioned second and third form of embodiment, an indoor unit may be provided with three grilles or more, including one or two grilles that are equal to the grilles 10, 20 and 30.

Fourth embodiment favorite

Figure 22 shows the fourth form of preferred embodiment of the present invention. In this form of preferred embodiment, an inspection control is added, represented in figure 22, for the control of rotation of the grid 10 in the aforementioned first preferred embodiment (see Figures 12 and 13). The other constructions are equal to the first preferred embodiment represented in the Figures 1 to 13.

In Figure 22, when determined, in the phase 98, that the input inspection means 29 represented in the Figure 6 are connected, the control of rotation of the grid 10 in an inspection mode. In the inspection mode of phase 99, the sequence is moved sequentially grid 10 through the entire oscillating zone at a speed of turn three times the usual turn speed to check the grid operation 10. On the other hand, when determined, in phase 98, that the input inspection means 29 are not connected, grid rotation control 29 is carried out in the usual modality represented in figure 12 (and in figure 13).

With this construction, below is describe the advantages of this preferred embodiment.

In accordance with this embodiment preferred, since the oscillation speed of the grid 10 which moves in response to the input of the inspection means of input 29 is greater than the usual rotation speed of the grid 10 that moves in response to the grid motion signal from the remote controller R (except for inversion of the movement of the grid 10), it is possible to reduce the time required to swing the grid 10 in response to the input of the inspection means of input 29 at the same time as maintains the usual speed of rotation of the grid 10 moved by the remote control R at a low turning speed. By consequently, it is possible to quickly carry out the operation of check the movement of the grid 10 in the mode of inspection based on the introduction of inspection means input 29, and it is also possible to easily carry out the put in place of the rotation position of the grid 10 by of the remote controller R.

As mentioned before, when the input frequency of the energizing pulse applied to the motor grid drive (stepper motor) M is increased in order to change the speed of grid 1, so that it is triple the usual turning speed, the torque of the drive motor of the grid (stepper motor) M is reduced. Therefore it is possible to detect a product in which the grid 10 does not move in a state in which the torque of the grid drive motor M is reduces (that is, an imperfect product in which it is difficult to grid operation 10), during inspection before Product delivery.

Also, the indoor unit U 'in the before mentioned second preferred embodiment, represented in Figure 16 may be provided with the same means of inlet inspection 29 shown in figure 6, and the aforementioned inspection control that appears in the flow chart of figure 22 to the turn control (figure 12) of grilles 20 and 30. In addition, the aforementioned control of inspection depicted in the flow chart of figure 22 can be added to the rotation control (figure 21) of the grilles 20 and 30, in the aforementioned third embodiment preferred.

The forms and desired arrangements of a series of unit grilles interior, which has the same number of grilles as the mentioned above with reference to the second embodiments to fourth preferred, and in which the movements of the respective grilles are different from each other.

When grilles 20 and 30 are in stopped positions, a space x is formed between the grilles 20 and 30 in the forward and backward direction, as can be seen in Figure 23. Said space x is set to be a small space, as long as the grilles 20 and 30 do not collide with each other when said grilles 20 and 30 oscillate. Since space x has been established in this way, the grilles 20 and 30 can be rotated so that the pivot points do not cross each other, said in other words, the grilles 20 and 30 rotate without being produced interferences between the turning points of the grilles 20, 30, such as it appears in figure 24.

In addition, as can be seen in Figure 23, it forms a space and between the grid 20 and the rear wall 2b of the download step 2. Said space and set to be small as long as the grid 20 does not collide with the wall rear 2b of the discharge passage 2 when the grid 20 oscillates. The space can be established, and so that it is very small, of according to the specific shapes and mounting structures of grilles 20 and 30.

As can be seen in Figure 23, when the grid 30 is in the stop position or closing position, the outer surface 30b of the grid 30 is substantially parallel to the imaginary surface that extends from the surface external front panel 3 surrounding exit door 1. It is that is, the outer surface 30b of the grid 30 is a surface slightly curved that substantially corresponds to a surface imaginary S1 (represented by the line with two points in the figure 23) extending from the front surface 3a of the front panel 3 while retaining its curvature, so that the external surface 30b corresponds to the imaginary surface extended S1. Also, as indicated in the forms of fifth to seventh preferred embodiments that will be described more forward, if the air conditioning system has a function that forms a "short circuit", preferably the curve of grid 30 is small.

When the grid 30 is in the position of stop, no space is formed between the grid 30 and the wall front 2a of the discharge passage 2, so that the grid 30 touches substantially the front wall 2a. That is, the front end 31 of the grid 30 substantially touches the front periphery of the exit door 1. Such an arrangement is allowed since the grid 30 oscillates only in one direction or direction opposite to the hands of the clock of figure 3, from the position of unemployment.

As it appears in figure 23, when the grid 20, which is located behind grid 30 and whose end front side 21 thereof is curved towards the axis of rotation C1, is in the stop position, the rear end 22 of the side of the external surface 20b thereof substantially corresponds to the extended imaginary surface of the outer surface of the front panel 3 that surrounds the exit door 1. That is, the side of the rear end 22 of the outer surface 20b of the grid 20 is formed so that it substantially corresponds to the extended imaginary surface S2 (represented by the line with two points in figure 23) extended from the bottom surface 3b of the front panel 3, while maintaining the curvature of the same, so that the outer surface 20b of the grid 20 corresponds to the extended imaginary surface S2 in order to remain associated with it to form a smooth curved surface. By Therefore, it is possible to improve the appearance of the indoor unit when this stop.

When grilles 20 and 30 are in the stop positions, the rear end 32 of the grid 30 located in front of the grid 20 is below the front end 21 of the grid behind grid 30. That is, as you can see in figure 23, the grilles 20 and 30 are arranged in so that they overlap each other in a vertical interval z. By consequently, when the indoor unit is substantially observed from the front, it is not possible to discover the space between the grilles 20 and 30 with the naked eye, so that the appearance of the indoor unit is not damaged even by space x formed between grilles 20 and 30.

Also, in case the grid 20 is curved 20, the space between the grilles 20 and 30 can be substantially wider than in an indoor unit where the grid 20 is not curved (see figure 25). Therefore, case of that the grilles 20 and 30 are in positions close to the stop positions, and in which the indoor fan 8 is in operating state or has not stopped completely, such as happens immediately before stopping system operation of air conditioning or immediately after starting in progress of the same, the appearance of the flow can be avoided discharged, which is produced by blocking the air conditioner by grilles 20 and 30. Thus, it is possible to prevent them from forming Noises due to the influx of air.

In addition, the shape of the grid 20 does not have to be limited to that represented in figure 23, but it can also use a grid 20 that has a smooth cross section curved, as shown in figure 25. That is, all the outer surface 20b of the grid 20 may be curved from way that corresponds to an extended imaginary surface S2 (represented by the line with two points in Figure 25), in order to that the entire outer surface 20b of the grid 20 corresponds to the imaginary extended surface S2 when the system is stopped. With this construction, given that the entire external surface 20b of the grid 20, same as the entire outer surface 30b of the grid 30, correspond to the outer surface of the front panel 3, is possible to further improve the appearance of the indoor unit.

As shown in Figure 26, the shape of the front panel 3 can be changed and place the grid 30 slightly behind the front surface 3a of the front panel 3.

While the front grill 30 has tilted in counterclockwise from the stop position, in the aforementioned preferred embodiment, the grid 30 can be swung clockwise (see the arrow in figure 27) from the stop position (represented by the continuous line in figure 27).

In this case, as can be seen in Figure 27, the lower end of the front surface 3a of the front panel 3 is formed with a protruding portion 3c. As shown in Figure 27, the tip portion of the protruding portion 3c extends within the pivot points r of the rear end 32 of the grid 30, so that the grid 30 is designed to collide with the protruding portion 3c when rotated counterclockwise to the position represented by the line with two points in Figure 27. However, the grid drive motor M2 for driving the grid 30 is designed to prevent the grid 30 oscillate to the position where the grid 30 collides with the protruding portion 3c. In addition, the front end 32 of the outer surface 30b of the grid 30 is designed to come into contact with the inner surface of the projecting portion 3c when it stops.

While the indoor unit has been equipped with two grilles 20 and 30, in the preferred embodiment cited previously, the distance between the grilles 20 and 30 can be increased, and an additional grid having the same form and function of the grid 20, between the grilles 20 and 30. In in this case, the rear end 32 of the grid 30 can be arranged under the edge of the front end of the additional rack, behind of the grid 30, and the rear end edge of the grid additional can be placed under the front end 21 of the grid 20 behind the additional grid.

The aforementioned forms and provisions of grilles 20 and 30 can be applied not only to the unit inside in which the grilles 20 and 30 are driven by the motors grid drive M1 and M2, but they can also apply to an indoor unit in which at least one of the grilles 20 and 30 be moved manually.

As mentioned before, since the series of grilles are arranged so that their pivot points do not cross each other, it is possible to prevent the grilles from crashing against others. Therefore, even when the rotation controls of the grilles represented in the before mentioned second to fourth preferred embodiments, it is not Accurate performs complex controls to prevent grilles they collide with each other, so that an indoor unit can be offered Easier presenting a good download feature for air conditioning. In addition, even if the grilles are activated manually by the user, it is possible to prevent the grilles and Support portions thereof are damaged.

Fifth embodiment favorite

Referring to figures 28 and 29, will describe below the fifth preferred embodiment of the present invention.

As can be seen in Figure 29, the front and top surfaces of an indoor unit 101, mounted on top of an inner wall of a room, they are provided with entrance doors 102 and 103 to aspirate the air from the interior, and the lower surface of it has a door output 104 to discharge air conditioning. Indoor unit 101 has a discharge passage 105 to introduce the air conditioning at exit door 104. Inside the doors of input 102 and 103, there is a dust filter and deodorant 106. Inside the filter 106, there is an internal heat exchanger 107 and an auxiliary indoor heat exchanger 108. Within heat exchangers 107 and 108 there is a fan internal cross or cross flow type 109.

The main internal heat exchanger 107 it is divided into a first heat exchanger 107a and a second heat exchanger 107b. The first heat exchanger 107a it faces the front entrance door 102 and the second heat exchanger 107b faces the entrance door upper 103, so that the first and second exchangers of heat 107a and 107b are arranged to adopt a V shape inverted around the inner fan 109.

The auxiliary heat exchanger 108 goes arranged between the second heat exchanger 107b and the door input 103. There is an electric heater 117 and a member water guard 118 between the first and second exchangers of heat 107a, 107b and the inner fan 109. The heater Electric 117 serves to heat the air that passes through the heat exchangers 107a and 107b, if necessary. He water protective member 118 serves to prevent the purge from leaking directly to the electric heater 117 from the first and second heat exchangers 107a and 107b.

There are purge water receivers 118 below of the first and second heat exchangers 107a and 107b, and below of the internal auxiliary heat exchanger 108, respectively.

Even when the first radiation fin heat exchanger 107a touches the radiation fin of the second heat exchanger 107b, a space is formed between the fin of radiation of the second heat exchanger 107b and the fin of radiation of the internal auxiliary heat exchanger 108, so that both radiation fins do not come into contact with each other, it is that is, they are thermally isolated from each other.

When the indoor fan 109 rotates, the air indoor is sucked into indoor unit 101 through the entrance doors 102 and 103. The air sucked through the door of input 102 passes through filter 106, and then passes through the first heat exchanger 107a to circulate to the indoor fan 109. The air sucked by inlet 103 passes to through filter 106, and then passes through the indoor auxiliary heat exchanger 108, and then passes through of the second heat exchanger 107b to circulate towards the indoor fan 109.

In a place where discharge passage 105 is in front of the exit door 104, a series of 110 vertically extending grilles moved by a motor of 110M drive, shown in figure 29, in order to change the horizontal discharge direction of the air conditioner. Downstream of the vertically extending gratings 110, there are a couple of grids that extend horizontally 150 and 111. The horizontally extending gratings 150 and 111 are driven by a 111M drive motor shown in the figure 29, in order to swing around an axis of rotation 111b supported by a support bracket 111a, to change vertically the discharge address of the air conditioner.

Referring to Figure 29, a a fifth refrigeration cycle will be described below preferred embodiment of an air conditioner 100 of according to the present invention.

As can be seen in figure 29, it is connected an external heat exchanger 123 to a discharge door of a compressor 121 through a four-way valve 122. A expansion mechanism, for example an expansion solenoid valve 124, is connected to the external heat exchanger 123. A end of the internal auxiliary heat exchanger 108 va connected to expansion solenoid valve 124, and the other end of the internal auxiliary heat exchanger 108 is connected to the main internal heat exchanger 107 (the first and the second heat exchangers 107a and 107b). The exchanger of main interior heat 107 is also connected to a door compressor inlet 121 through the four-way valve 122.

On the other hand, as it appears in figure 29, a heat exchanger tube on the outlet side of the inner auxiliary heat exchanger 108 and a tube heat exchanger in the middle part of the first heat exchanger 107a are provided with sensors heat exchanger temperature 113 and 114, respectively. In addition, there is an indoor temperature sensor 115 mounted in one step to aspirate indoor air between the entrance door 102 and the main internal heat exchanger 107.

There is also an indoor fan 125 nearby of the external heat exchanger 123 to supply air from the outside to outside heat exchanger 123.

An AC power source is connected commercial 130 to an inverter circuit 131, control circuits of speed 132, 133 and to a control unit 140. The unit of control 140 is also connected to inverter circuit 131, the speed control circuits 132, 133, the engine of drive for grid extension 110M vertically, the drive motor for grid extension horizontally 111M, the indoor temperature sensor 115, the electric heater 117, four-way valve 122, the expansion solenoid valve 124 and receiver unit 141.

The inverter circuit 131 serves to rectify a supply voltage, in order to convert the voltage of supply in an alternating current, of a frequency and voltage corresponding to the order of the control unit 140, supplying alternating current as the drive energy of the compressor motor 121.

Speed control circuit 132 is intended to control a supply voltage, which is fed to a 125M outdoor fan drive motor, to adjust the capacity of the external fan 125 according to the order of the control unit 140.

Speed control circuit 133 is intended to control a supply voltage, which feeds a 109M indoor fan drive motor, to adjust the indoor fan capacity 109 according to the order of the control unit 140.

The receiving unit 141 is intended for receive an infrared signal transmitted from a controller to distance 142 operated by the user.

With this construction, when the air conditioner 100 of this preferred embodiment to cool or dehumidify, a refrigeration cycle is formed represented by the continuous line arrows of figure 29, in that the refrigerant discharged from the compressor 121 flows sequentially from four-way valve 1222 to main internal heat exchanger 107 through the external heat exchanger 123, the expansion solenoid valve 124 and the inner auxiliary heat exchanger 108, then being returned the refrigerant discharged from the heat exchanger main inner 107 to compressor 121 through the valve four-way 122. That is, the indoor heat exchanger main 107 and auxiliary indoor heat exchanger 108 They serve as an evaporator.

On the other hand, when heating, the four valve lanes 122 is switched, the cycle represented by the dashed line arrows of figure 29, in which the refrigerant Discharged from compressor 121 flows sequentially from the valve four-way 122 to the external heat exchanger 123 through of the main internal heat exchanger 107, the auxiliary internal heat exchanger 108 and solenoid valve expansion 124, and then, the refrigerant discharged from the external heat exchanger 123 returns to compressor 122 a through the four-way valve 122. That is, the exchanger main heat exchanger 107 and heat exchanger auxiliary interior 108 act as a condenser while the External heat exchanger 123 serves as an evaporator.

As can be seen in Figure 28, when the air conditioning 100, in this preferred embodiment, used to dehumify, the grilles that extend horizontally 150 and 111 oscillate by means of the motor of 111M horizontally extending grid drive, of so that the downstream portions of the grids 150 and 111 They are on a horizontal line. In addition, the grids that are vertically extend 110 are set to be placed in the center of the longitudinal direction, by means of the motor 110M drive. Also, the indoor fan 109 is made Run at low speed.

This forms a flow of air conditioning W, in that air conditioning is sucked inside an entrance door 102 immediately after being unloaded through the door of exit 104 (this flow path will be called a "short circuit"). That is, most of the air conditioning discharged through exit door 104 passes near the indoor unit 101 to be sucked into the exit door 104, so the air conditioning does not reach the central part of the room.

Therefore, it is possible to continue dehumidifying without producing a cold air conditioner to reach the central part of the room, and to get a comfortable dehumification without producing the sensation of a wind cold.

Also, even when a part of the indoor air is continuously aspirated into the indoor unit 101 forming the "short circuit", the moisture diffusion rate is large enough, so that it is possible to dehumify with Indoor air security.

Referring to figures 28 and 30, a this preferred embodiment of a 100 air conditioner of the aforementioned construction, particularly the indoor unit 101, in accordance with the present invention.

As can be seen in Figures 28 and 30, the upper surface 151 of the front grille 150 next to the entrance door 102, which is one of the grilles that extend horizontally 150 and 111 arranged in the exit door 104, features a substantially cross sectional projection 152 triangular, which protrudes from the extreme portion of the surface upper 151, downstream of the air conditioner, in order to increase the thickness of the grid 150 and that extends throughout the length. This projection 152 serves to form a surface wind deflector 153 that changes the direction of the air conditioning downloaded.

In addition, an extension L of the surface wind deflector 153 passes downstream of an edge 104a of the exit door 104 next to the entrance door 102 for reach the front surface of the entrance door 102. By therefore, the wind deflector surface 153 may be located on the upper surface 151 of the grid 150, upstream or downstream of the air conditioner, relative to a line dividing 104b of the edge 104a of the exit door, ie a extended imaginary surface of the front panel.

That is, as the painted arrows indicate in black in figure 30, the air conditioning flow W1 which flows along the upper surface 151 of the grid 150 is diverted to the entrance door 102.

On the other hand, as represented by the arrows painted white in figure 30, the air flow W2 conditioning flowing along the bottom surface 152 of grid 150 passes without being diverted.

Since the wind deflector surface 153 It is formed by the projection 152 protruding, increasing the grid thickness 150, the air conditioning flow W1 which flows along the upper surface 151 of the grid 150 is completely separate from the flow of the flowing W2 air conditioner along the bottom surface 154 of the grid 150 ,, in the sidestream downstream of the grid 150, so that they do not attract to each other to combine with each other.

In this preferred embodiment, the grid 150 has a plate-like shape all the way side.

Thus, it is possible to reduce air resistance conditioning compared to a curved grid in the senses lateral, being possible to increase the air flow rate W1 conditioning flowing along the upper surface 151 of the grid 150. Therefore, the air conditioning flow deflected by the wind deflector surface 153 so that it passes to the entrance door 102 also increases, thus being feasible to form The "short circuit" for sure.

In this preferred embodiment, outside the air conditioning discharged through exit door 104, the flow W1 air conditioner flowing along the surface upper 151 of grid 150 is safely deflected by the wind deflector surface 153. Therefore, even when the inclined angle of the grid 153 differs from an inclined angle optimal when controlling the inclined angle of the grid 150 to form a "short circuit", you can safely form the "short circuit".

Sixth embodiment favorite

Referring to Figure 31, a Next, the sixth preferred embodiment will be described. of the present invention.

As can be seen in Figure 31, the sixth preferred embodiment of an indoor unit according to The present invention is substantially the same as the indoor unit of the fifth preferred embodiment, except for the fact that the cross-sectional configuration of an outlet cover 160 forming the front wall 104c of an exit door 104 is different from that appeared in the fifth embodiment preferred (see 160a in Figure 30).

In this preferred embodiment, the lid outlet 160 that is part of the front wall 104c of the door outlet 104 is formed with a curved cylindrical surface 1651 which is convex down the 150 grid. The extension imaginary surface 161 extends towards the door of input 102. Thus, the air conditioning flow W1 flowing to the length of the front wall 104c of the exit door 104 is gradually deflected to pass along the surface curved 161 of outlet cover 160, flowing towards the door of entry 102.

This time, the flow of the W2 air conditioner, represented with arrows painted white in figure 31, and that a separate part of the front wall 104c flows from the door of output, is attracted by the flow of diverted air conditioner W1 along the curved surface 161 to combine with each other to pass inside the entrance door 102.

That is, in this preferred embodiment, the air conditioning flows W1, W2 and W3 flowing between the front wall 104c of the exit door 104 and the grid 150 are deflected by curved surface 161 and deflector surface of wind 153 combining with each other to pass inside the door input 102.

So, even if the inclined angle of the grid 150 is offset from an optimum inclined angle when controls the inclined angle of the grid 150 to form a Short circuit, it is possible to safely form the short circuit.

Also, while in this embodiment preferred the outlet cover 160 that is part of the front wall 104c of the exit door 104 has been configured with the curved surface 161, the front wall 104c of the exit door 104 may be formed with a curved surface to deflect the air conditioning flow W.

Seventh embodiment favorite

Referring to figure 32, it will be described then the seventh preferred embodiment of the present invention This preferred embodiment is substantially the same as the sixth embodiment preferred, except for the shape of a cross section of the grille on the side of the entrance door 102.

That is, as it appears in Figure 32, in this preferred embodiment, the thickness of the grid that is extends horizontally 170 is substantially constant in the air conditioning flow direction. Grid 170 is curved in a place downstream from the center in the lateral direction of the grid 170 so that an extreme portion downstream 171 of the grid 170 ascend to the entrance door 102 with with respect to an extreme portion upstream 172. The point of curvature 175 of the grid 170 is located upstream of the center of the grid 170. An upper surface 173 of the portion extreme upstream 171 serves as the deflector surface of the wind to change the direction of air conditioning flow.

The wind deflector surface 173 is formed so that a tangential line L to the same passes low current of the edge 104a of the exit door 104 in the entrance door 102 to reach in front of the front surface of the entrance door 102 when the slanting angle of the grid 170 is controlled so that it forms a "short circuit".

Therefore, as represented by the black painted arrows in figure 32, air flow W1 conditioning flowing along the upper wall 172a of grid 170 is deflected by the wind deflector surface 173 to go to the entrance door 102.

On the other hand, as it appears in Figure 32, there is an exit door 180 that is part of the front wall 104c of the exit door 104, with a cylindrical surface curved 181, which is convex down and towards grid 170 and that it has a curved extension that extends towards the door of entry 102.

Thus, the flow of the W2 air conditioner flowing along the front wall 104c of the entrance door is gradually deflected upward along the curved surface 181 of the outlet cover 180, to pass towards the gateway 102. At this time, the lowest extreme portion 182 of the curved surface 181 is located upstream (in the back side) of the curvature point 175 of the grid 170.

Therefore, the air conditioning flow W1 deflected by the wind deflector surface 173 of the grid 170 and the air conditioning flow W2 deflected by the surface curved 181 of the front wall 104c are plainly discharged from the exit door 104 without interfering with each other.

The flow rate of the W2 air conditioner flowing along the front wall 104c of the exit door 104 is greater than that of the air conditioning flow W1 flowing to along the upper surface 172a of the grid 170.

Thus, the air conditioning flow W1 diverted down the wind deflector surface 173 of the grid 170 is attracted by the flow of the W2 air conditioner deflected by the curved surface 181 of the front wall 104c, and then deflected to go to the entrance door 102.

In this preferred embodiment, the upstream portion (the posterior side portion), with with respect to the point of curvature 175 of the grid 170 in the directions The sides of it have a plate-like shape.

Thus, it is possible to reduce the resistance of the air conditioning compared to the curved grid throughout the lateral sense, being feasible to increase the flow capacity of the W1 air conditioner that passes along the surface of the upper wall 172a of the grid 170.

Consequently, the air capacity increases conditioning deflected by the wind deflector surface 173 to pass to the entrance door 102, so that it is possible to form A short circuit for sure.

In this case, the air flow capacity W3 conditioning flowing along the side of the reverse surface of grid 170 is small and wind speed is low as well that the flow of the W2 air conditioner is not attracted by the flow of air W3.

Therefore, according to this form of preferred embodiment, since the air conditioning flows W1 and W2 discharged from exit gate 104 are diverted with security to pass to the entrance door 102, it is possible safely form a short circuit even if the angle tilted of the grid 170 differs from an optimum inclined angle when the inclined angle of the grid 170 is controlled to form The short circuit

When an operation of usual cooling or heating, in case the inclination of the grid 170 is controlled in order to change the discharge direction of the air conditioner from a horizontal direction to a direction tilted down, it is possible to reduce the resistance to the ventilation of the grid 170 to achieve an air flow soft.

In addition, in this preferred embodiment, when the grid 170 is swung to close the door of exit 104, as indicated with the line with two points in Figure 32, the surface of the front panel 102a that forms the entrance door 102 is parallel to the bottom surface 174 of the grid 170, and the end portion 171a of the grid 170 is left facing the edge 104a of the exit door 104, so that it is possible to greatly improve the appearance of the indoor unit 101 when the exit door 104 is closed by the grid 170, it is say, when it stops working.

As mentioned before, according to preferred fifth to seventh embodiments, when the angle of inclination of the grid or the position of rotation of the grid is controlled to form a "short circuit", the air conditioning discharged through the exit door of the unit inside is deflected by the wind deflector surface in order of that happen to the entrance door. Therefore, even if the angle Tilt of the grid differs from the optimal angle, it is possible form the "short circuit" safely.

Thus, a cooled air conditioner that unload from the exit door when carrying out the operation of dehumification of the air conditioning system, flows from the exit door to the entrance door without going to the side center of the room, and circulates between the entrance door, the heat exchanger, interior fan and door exit, so that it is possible to dehumify the room without producing The feeling of a cold wind.

Also, the rear grill 111, in the shapes of preferred fifth to seventh embodiment, it is the same as the grid 20 of the second to fourth preferred embodiments. In this case, two grid drive motors are used to actuate the respective grilles, and the operation of the corresponding grilles can be controlled in the same way as in of the second to fourth preferred embodiment.

Claims (11)

1. An indoor unit for an air system conditioning, comprising: an exit door (1) to discharge air conditioning inside a room; an entrance door (4) for sucking air into room conditioning; a discharge passage (2) to allow air conditioning flow in a forward and downward direction towards said exit door (1); a rear rack and a front rack (20, 30) arranged in said exit door and placed one next to the another, to vertically vary a download address of said air conditioning, each of said grilles being orientable around a horizontal axis of rotation (C1, C2), in which

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a (20) of the grilles is adapted to rotate in two directions opposite from its closed position, and the other (30) of the grilles it is adapted to rotate only in one direction from its closing position;

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the cited one (20) of the grids has a cross section curved with a concave surface (20a) and a convex surface (20b) opposite to said concave surface (20a); Y

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when both of the aforementioned grilles (20, 30) are placed in their closing positions in which said grilles (20, 30) close substantially said exit door, a space (x) is formed between them so that the mentioned grilles (20, 30) can rotate without causing interference between the pivot points of said grilles (20, 30);

drive means (M1, M2) to drive said grids (20, 30) in order to rotate said grilles around said axis of rotation (C1, C2); Y control means (27) to control the mentioned drive means (M1, M2) for rotating said grilles (20, 30), said control means (27) being configured to control one (M1) of said control means, of Way that said concave surface (20a) of the mentioned one (20) of the grids is directed substantially up when air conditioning must be discharged; Y said concave surface (20a) is directed substantially back when air must be discharged conditioning down; characterized by the fact that said one (30) of the grids that is adapted to rotate only in one direction is the aforementioned front grille (30); the aforementioned other (20) of the grids that is suitable to rotate in two opposite directions and has that section transverse curved surface is said rear grid (twenty); a trailing end edge (32) of said grid center (30) is located below the front end edge (21) of said rear grill (20) when each of said grids (20, 30) is in said closed position; Y a front edge (33) of said front grille (30) substantially contacts a front wall (2a) of said exit door (1) when said front grille (30) is located in its closed position. 2. An indoor unit according to the claim 1, wherein: said control means (27) control the said driving means (M1, M2) to rotate said grid posterior (20) so that the said concave surface (20a) is directed substantially up when the air conditioner should discharge forward, and said concave surface (20a) is directed substantially backwards when the air conditioner must be downloaded down; Y when the download address should be changed of said air conditioning between a forward direction and one direction down, said rear rack (20) is submit to the movement that includes a usual turning inversion movement, during which continuously changes the direction of discharge of said air conditioning according to the change of the turning position of the said rear rack (20); Y a turning inversion movement in which the positions of one end (21) and the other end (22) of the grid later (20) exchange each other, being the address of rotation of said investment movement opposite that of said movement of usual investment. 3. An indoor unit according to the claim 2, wherein said control means (27) controls the said driving means (M1) to drive said grid rear (20) so that the speed of rotation, during the aforementioned reversing movement of said rear grid (20) which has a curved cross section is greater than the speed of turn during said usual turn movement. 4. An indoor unit according to the claim 3, wherein said control means (27) controls the said driving means (M1) to drive said grid rear (20) so that said rear rack (20) having a curved cross section is stopped for a period default time immediately before starting said reversal movement. 5. An indoor unit according to the claim 3 or 4, further comprising: manual drive means (R) for ordering the operation and stopping of said driving means to said means control, to move the mentioned grids (20, 30) to positions optional turning; Y wherein said control means (27) control said driving means (M1) to drive said grid rear (20) so that said rear rack (20) that has a curved cross section stop at a position different from the aforementioned closing position when said means of control receive a stop order from said means of manual actuation during the aforementioned reversal movement of rotation of said rear grill (20) having a section curved cross. 6. An indoor unit according to a any of claims 2 to 5, wherein said means motors comprise a stepper motor (M1) to drive said rear grill (20) which has excitation coils (\ phi1 - 4 ph), and in which said control means vary the speed of rotation of said stepper motor to change the speed of rotation of said rear grill (20), switching a system of stepper motor excitation between an excitation system mono-biphasic and an excitation system biphasic 7. An indoor unit according to the claim 1, further comprising: manual drive means (R) for ordering the operation and stopping of said driving means (M1, M2) at said control means (27), for rotating said grids (20, 30) to optional turning positions, and in which said control means (27) control the said driving means (M1, M2) so that the speed of rotation of said grids, when it occurs automatically the rotational movement of said grids, is greater that the speed of rotation of the mentioned grids when it occurs the rotation of said grids in response to an input of said grids manually operated means, at least in part of the scope of rotation of the mentioned grilles. 8. An indoor unit according to the claim 1, wherein the grid (150; 170) has a wind deflector surface (153; 173) to deflect said air conditioning in a forward and upward direction, said wind deflection surface being arranged in a extreme portion, downstream, with respect to an air flow conditioning, of a surface (151, 172a) of said grid, and in that said grid forms an air conditioning flow towards a entrance door (102) from an exit door (104) through said wind deflector surface when said grid front has been turned to a predetermined position. 9. An indoor unit according to the claim 8, wherein said wind deflector surface (153; 173) is formed to deflect said air conditioning discharged from said exit door to the downstream of a peripheral edge (104a) of an exit door (104) when said air conditioning flow flowing from said door of exit to an entrance door (102). 10. An indoor unit according to the claim 8 or 9, wherein an internal wall surface (104c), which forms a discharge passage (105) next to a door input (102), is provided with a curved surface (181) that projecting towards said front grille (170), and in which one end lower (182) of said curved surface (181) is located upstream of said wind deflector surface (173) with with respect to said air conditioning flow when said front grille (170) is positioned to form an air flow conditioned from said exit door (104) to said door input 11. An indoor unit according to a any of claims 8 to 10, wherein a portion of said grids upstream of said deflector surface of the wind (153; 173), with respect to said air flow conditioned, it has a plate-like shape.