JPH0461254B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a wind direction deflection method for controlling the blowing direction of an air conditioner.

BACKGROUND ART Until now, various devices have been considered as wind deflection devices for air conditioners in order to improve the comfort of living spaces.

For example, there is a device that has blow-off ports in the horizontal and vertical directions, and blows out in the horizontal direction when the blow-out temperature is lower than the set temperature, and blows out in the vertical direction when the blow-out temperature is higher than the set temperature. (Tokuko Showa 55-10813
In other words, the configuration of this first conventional example prevents so-called cold draft, and can enhance the heating effect.

Furthermore, in order to improve comfort in a large living space, there is a device that swings the left and right deflection blades and the top and bottom deflection blades at a constant period. (US Pat. No. 3,257,931) This second conventional example is shown in FIGS. 11 and 12.

In the figure, upper and lower deflection blades 1 are provided on the front surface of the air outlet 101 to deflect the blown air in the vertical direction.
02. Left and right deflection vanes 103 and 104 are provided to deflect the blown air in the horizontal direction. The upper and lower deflection blades 102 are connected to a bellows 107a via a coupling device 105a and a lever arm 106a. In addition, the left and right deflection blades 103 and 104 are
Bellows 107 via connectors 105b, 105c and lever arms 106b, 106c, respectively.
b, 107c. Further, heaters 108a, 108b, 108c are wound around each bellows 107a, 107b, 107c, respectively. 109 are heaters 108a, 108b, 108
This is a micro switch that controls the energization of c.

In the above configuration, heaters 108a, 108
The bellows 107a, 107b, 107c extend by applying electricity to the heaters 108a, 108b, and 108c, and the extension of the bellows 107b operates a micro switch to stop the electricity supply to the heaters 108a, 108b, and 108c. As a result, the bellows 107a,
107b and 107c are cooled and contracted.

By repeating this operation, the fluctuating effect of the blown air can be restored.

Problems to be Solved by the Invention However, in the first conventional configuration described above, deflection control is only possible in the vertical direction, so for example, cold air during heating can be prevented from directly hitting the human body; direction), the movement of air within the living space increases,
Physically, the temperature feels lower than the actual room temperature. Also, since the downward balloon directly hits the human body,
This has to be done only after the blowing temperature has risen sufficiently, and in particular, it takes time from the start of operation to the downward blowing, which poses a problem in that the start-up of heating is delayed.

In addition, in the second conventional configuration, although it is possible to deflect the airflow in the horizontal direction, the airflow swings regardless of the airflow temperature, so it is not possible to shorten the start-up time or perform efficient heating, especially during heating operation. There was a problem.

An object of the present invention is to improve the comfort of a living space using an air conditioner, particularly to improve the comfort at the start of heating operation.

Means for Solving the Problems In order to solve the above problems, the present invention provides a compressor that compresses refrigerant, an air outlet that blows out air, and a vertical direction that deflects the air blown out from the air outlet in the vertical direction. a deflection blade; left and right deflection blades that are provided independently on the left and right sides of the air outlet and that branch and deflect air blown out from the air outlet in the left and right directions;
a driving means for controlling the driving of the upper and lower deflection vanes and the left and right deflection vanes; It is provided with an output means for outputting to the driving means, and before the air blowing temperature and the elapsed time reach predetermined values, the air blown out from the outlet is branched upward or horizontally to the left and right, and the air blowing temperature is controlled. When the temperature reaches a predetermined value, the blowing direction is deflected downward and concentrated in the center, and when the elapsed time reaches the predetermined value before the blowing temperature reaches the predetermined value, the blowing direction is once deflected downward. The air is deflected in directions branching left and right, and when the air blowing temperature reaches a predetermined value, the air blowing direction is again directed downward and concentrated in the center.

Effect: With the above means, the method of deflecting the wind direction of an air conditioner according to the present invention, when the air blowing temperature reaches a certain predetermined value,
Since the air is concentrated downward from the horizontal branch, when the air temperature is low during heating operation, the air is mixed only in the upper part of the living space, making it possible to heat the room without feeling cold, and when the air temperature is high , it is possible to efficiently increase the heating effect by directing warm air to the human body. In addition, when the elapsed time reaches a certain predetermined time before the air blowing temperature reaches a certain predetermined value, the air blowing temperature will be low until the elapsed time approaches a certain predetermined value in order to change the flow from horizontal to downward branching. As mentioned above, by mixing the air only in the upper part of the living space, it is possible to heat the room without feeling cold, and when the temperature of the air reaches a certain level after a certain period of time has passed, the air from the periphery of the living space flows into the human body. By heating the wall surface first without making people feel cold, it is possible to shorten the rise time and make the temperature distribution in the living space uniform.When the air blowing temperature reaches a certain predetermined value, the warm air is directly directed to the human body as described above. The heating effect can be increased efficiently, and the temperature distribution and comfort can be improved simply by deflecting the direction of the air.

Embodiment Hereinafter, a wind deflection device for an air conditioner according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view of the main parts of the device.

As shown in the figure, the vertical deflection blade 1, which is slightly curved in the blowing direction and deflects the air vertically by the Coanda effect, has a shaft 2 in its longitudinal direction, and this shaft 2 is connected to a medium motor ( Stepping motor) 3. The left and right deflection blades that horizontally deflect the blown air by the Coanda effect are composed of a left deflection blade 5a connected to a coupler 4a and a right deflection blade 5b connected to a coupler 4b. and left deflection blade 5
a is connected to a left motor (stepping motor) 9a via a blade lever arm 6a, a rod 7a, and a motor lever arm 8a, and a right deflection blade 5b.
is connected to a right motor (stepping motor) 9b via a blade lever arm 6b, a rod 7b, and a motor lever arm 8b. Here, the left deflection blade 5a is slightly curved so that its center is to the left of this left deflection blade 5a, and the right deflection blade 5b is slightly curved so that its center is to the right of this right deflection blade 5b. are doing. That is, this is to cause the aforementioned Coanda phenomenon to occur on both sides 13a and 13b of the air outlet 12, which will be described later, and to deflect the wind direction. Since the Coanda effect is a well-known technique, its explanation will be omitted.

In this embodiment, the middle motor 3 and the left motor 9
a, the right motor 9b constitutes the driving means,
It is possible to use one motor to drive the left and right deflection vanes, and furthermore, by using a switching means such as a gear or a clutch, it is also possible to control the upper and lower deflection vanes 1 and the left and right deflection vanes with a single motor. . Further, the motor is not limited to a stepping motor, but may be an induction motor or the like.

It is also possible to use a shape memory alloy spring that changes depending on the ambient temperature instead of the motor, and in this case, the alloy itself has temperature detection means and set temperature storage means, which are essential conditions of the present invention. It turns out. Furthermore, the reason why the left and right deflection blades are divided into two parts, the left deflection blade 5a and the right deflection blade 5b, is to facilitate the concentration and separation operations that are the object of the present invention, and also to enable independent control of the wind direction. In order to perform more delicate control of the wind direction, it may be further divided into smaller sections, or conversely, it may be connected by a single connecting device 4 as shown in FIG. 2 without being divided. The reason why the left deflection blade 5a and the right deflection blade 5b are curved is to not only deflect the wind direction by the Coanda effect but also to enhance the concentration and splitting effect that is the object of the present invention. Unless the effect is taken into consideration, it may be a planar shape that is not curved, or even a shape in which the curved directions are reversed.

Next, FIG. 3 shows a perspective view of the indoor unit 10 to which the wind direction deflection device shown in FIG. 1 is installed.

In the figure, an indoor unit 10 has a suction port 11 on the front surface for sucking indoor air, and a vertical deflection blade 1 and a left and right deflection blade 5 are provided below the suction port 11.
A blower outlet 12 having a and 5b is provided.
Both side portions 13a and 13b of the air outlet 12 have curved surfaces that gradually expand outward in order to deflect the wind direction by the Coanda effect as described above. Further, as described above, the lower surface portion 14 is also a curved surface that gradually expands in order to deflect the wind direction by the Coanda effect.

A side sectional view of this indoor unit 10 is shown in FIG. An indoor heat exchanger 1 is installed at a position facing the suction port 11.
5, from this indoor heat exchanger 15 to the air outlet 12
A blower 16 is provided in the ventilation path leading to.

Next, the refrigeration cycle of this embodiment is shown in FIG.

In the figure, a compressor 17, a four-way valve 18, an indoor heat exchanger 15, a capillary tube 19, and an outdoor heat exchanger 20 are connected in a ring. Here, during heating operation, the refrigerant is supplied to the compressor 17, the four-way valve 18,
It flows in the order of the indoor heat exchanger 15, the capillary tube 19, and the outdoor heat exchanger 20, and during cooling operation, it flows in the order of the compressor 17, the four-way valve 18, the outdoor heat exchanger 20, the capillary tube 19, and the indoor heat exchanger 15. flows.

Here, 21a to 21d are temperature detection means that indirectly detect the temperature of the air outlet. That is, 21a
21b is a current detector that detects the current of the compressor 17; 21c is a pressure sensor that detects the pressure of the discharge pipe of the compressor 17; 21d is a temperature sensor that detects the indoor heat exchanger 20 pipe temperature; Exchanger 15
This is a pressure detector that detects the pipe pressure. In order to detect the blowout temperature, it is conceivable to provide a temperature sensor directly at the blowout port 12, but it can also be detected from the temperature, pressure, and current of each of the above parts, and any one of them can be selected or used in combination. It is possible.

Further, 21e is a temperature detector for detecting the suction temperature, which is an example of a temperature detecting means for detecting the room temperature, and the room temperature detection location is not limited to the vicinity of the suction port.

Next, a circuit diagram of the main part of this embodiment is shown in FIG. Inside the microcomputer 22, there is a storage section 23 that stores a preset temperature;
The driving signal generating means 24 generates an appropriate output signal based on a comparison between the set value stored in the input value and the input value. A thermistor 21, which is a temperature detection means, is connected to the input side of this microcomputer via a comparator 25, and the output side of each motor 3,
Buffer 26 that supplies pulse output to 9a and 9b
The middle motor 3 and the left motor 9, which are drive means, are
a, the right motor 9b is connected. here 27
is a bias resistance, and 28 is a scan resistance.

Next, the operation of this embodiment is shown in FIG. The figure is a flowchart during heating operation.

The blowout temperature t is the temperature detected by the thermistor 21, and _t1 is the set temperature. When this blowing temperature t is lower than the set temperature _t1 , the middle motor 3 is rotated clockwise, the left motor 9a is rotated clockwise, and the right motor 9b is rotated counterclockwise and then stopped. Here, rotating the middle motor 3 to the right moves the upper and lower deflection blades 1 to the horizontal position (upward position if necessary), and rotating the left motor 9a to the right moves the left deflection blade 5a to the left and the right motor 9b. Rotating to the left indicates driving the right deflection blade 5b to the right. That is, the blown air becomes horizontally divided as shown in FIG. At this time, it is not known what initial state the upper and lower deflection blades 1, left deflection blade 5a, and right deflection blade 5b are in, but after driving each motor 9a, 9b, and 9c, they must be rotated to the above positions. It is something that moves. That is, when the deflection is already at the same position as the position after driving in the initial state, the motor is not allowed to rotate by a load resistance such as a stopper, or the motor is allowed to rotate idly. and each motor 9
After rotation of a, 9b, and 9c (before or during rotation as necessary), the temperature of the thermistor 21 and the set temperature are compared again.

Next, if the temperature t of the thermistor 21 is lower than the set temperature _t1 and the elapsed time T is greater than the set time _T1 , the middle motor 3 is rotated to the left, the left motor 9a is rotated to the right, and the right motor 9b is rotated to the left. Stop. That is, the blown air becomes a downward branch as shown in FIG. When the flow is already in the horizontal branching state as shown in FIG. 8 before this operation, only the upper and lower deflection blades 1 are substantially deflected.

Next, if the temperature t of the thermistor 21 is higher than the set temperature _t1 , the middle motor 3 is rotated to the left, and the left motor 9 is rotated to the left.
Rotate the motor a to the left, rotate the right motor 9b to the right, and stop. In other words, the blown air is concentrated downward and the first
The result will be as shown in Figure 0.

By performing the above operations, the cold air, which is not pleasant for the user's experience, is diverted horizontally so that it does not directly hit the human body, and when the temperature of the blast is relaxed to a certain extent, it is diverted downward so that it indirectly hits the human body. When the temperature of the air is high enough, the air blows directly onto the human body without causing any problems, so the air blows out concentrated downward.

The effect of such an operation at the start of heating operation will be explained. First, since the temperature of the air outlet immediately after heating operation starts is low, it is not desirable for the air to directly hit the human body. Further, even if the air within the living space does not directly hit the human body, large movement of the air within the living space will make the air feel lower than the actual room temperature, so it is preferable that the air movement within the living space be small. In other words, by using horizontal branching air, the blown air mixes only in the upper part of the living space, providing a heating effect without making the human body feel cold.

Next, when a certain predetermined period of time has elapsed and the temperature of the blown air reaches a certain level, the air is diverted downward, so that the heating effect is performed from the periphery of the living space. That is, even in this case, the movement of air within the living space is reduced and heating can be performed without making the human body feel cold. Furthermore, by loosening the wall surface first, the rise time can be shortened and the temperature distribution within the living space can be made uniform.

Effects of the Invention As is clear from the description of the above-mentioned embodiments, when the elapsed time reaches a certain set time before the air outlet temperature reaches a certain set temperature, the present invention changes from a horizontal branch air outlet to a downward branch air outlet. When the blowout temperature is low, the air is mixed only in the upper part of the living space. In other words, at this time, since it is a horizontal blowout and a branch blowout, it is possible to improve the mixing effect of air only in the upper part of the living space, and it is possible to prevent large air movement in the lower part of the living space, so it is easier to feel. I never feel cold.

Further, when the elapsed time reaches a certain set temperature and the blowout temperature is high, the blowout becomes a downward branch flow, so that the air is released from the periphery of the lower part of the living space, that is, from the wall surface, so that the temperature distribution can be made uniform. In addition, with downward concentrated blowing, the blown air hits the human body directly, and downward blowing cannot be performed until the blowing temperature becomes sufficiently high.However, with divided blowing, the temperature rises to a certain extent. This allows the air to be blown downward, allowing the heating effect to start up more efficiently. Further, even when the above operation is performed depending on changes in room temperature, effective heating can be performed in the same way.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a wind deflection device showing an embodiment of the present invention, Fig. 2 is a configuration diagram showing different connection states of left and right deflection blades in the wind deflection device, and Fig. 3 is a diagram showing the wind deflection device in different connection states. Fig. 4 is a longitudinal sectional view of the air conditioner, Fig. 5 is a refrigerant circuit diagram of the air conditioner, and Fig. 6 is an electrical circuit diagram of the main parts of the air conditioner. , FIG. 7 is a flowchart showing the control contents of the air deflection device, FIG. 8 is an explanatory diagram showing the horizontal branch blowing state in the air conditioner, and FIG. 9 is an explanatory diagram showing the downward branch blowing state.
FIG. 10 is an explanatory diagram showing the downward concentrated blowing state, FIGS. 11 and 12 are a perspective view and a cross-sectional view of a main part of a conventional wind deflection device, respectively, and FIG. 13 is a control device according to the present invention. FIG. 1... Vertical wind deflection blade, 3... Middle motor, 5
a...Left deflection blade, 5b...Right deflection blade, 9a...
... Left motor, 9b ... Right motor, 10 ... Indoor unit, 12 ... Air outlet, 15 ... Indoor heat exchanger, 17 ... Compressor, 20 ... Outdoor heat exchanger, 2
1a, 21e...Temperature sensor, 21b...Current detector, 21c, 21d...Pressure detector, 22...Microcomputer, 23...Storage unit, 24...
Drive signal generation means.

Claims (1)

[Claims] 1. A compressor that compresses refrigerant, an air outlet that blows out air, vertical deflection blades that vertically deflect the air blown out from this air outlet, and air outlets that are provided independently on the left and right sides of the air outlet. left and right deflection vanes that branch and deflect the air blown out in the left and right directions; drive means that reciprocates the upper and lower deflection vanes and the left and right deflection vanes, respectively; and air temperature detection means that detects the air temperature at the outlet. , an elapsed time detection means for detecting the elapsed time since the air conditioner started operating; a set temperature storage means for storing a preset blowing temperature; and a set time storage means for storing the preset elapsed time. ,
temperature comparison means for detecting that the air temperature detected by the air temperature detection means has become equal to the air temperature stored in the set temperature storage means; and a set time storage means for detecting that the elapsed time detected by the elapsed time detection means has become equal to the air temperature stored in the set temperature storage means. a time comparison means for detecting that the time has become equal to a set time stored in the temperature comparison means; and a drive signal generation means for supplying a drive signal to each of the drive means in response to a command from the temperature comparison means or the time comparison means. Before the temperature and elapsed time reach a predetermined value, the air blowing direction is horizontal or upward and branched to the left and right, and when the air temperature reaches a predetermined value, the air blowing direction is downward and concentrated in the center. If the elapsed time reaches a predetermined value before the blowing temperature reaches a predetermined value, the blowing direction is once deflected downward and in a direction branching left and right, and when the blowing temperature reaches a predetermined value. A method of deflecting the air direction of an air conditioner in which the direction of air is deflected downward and concentrated in the center.