JPS59114119A - Apparatus for driving air directing plate of air blowing port - Google Patents

Abstract

PURPOSE:To make the constitution simple, to prevent noises from being made, and to make it possible to fix the position of air direction plates, by supplying high air pressure and low air pressure alternatively to an air pressure actuated mechanism including a piston mechanism, etc. to reciprocate it, and oscillating air directing plates by this reciprocative movement. CONSTITUTION:When a change-over switch 9 is connected to an intermittent operation contact 9c, an electronic valve 7 is actuated to apply vacuum from an input port 7a to a working space 4e of a diaphragm 4, and the air directing plates 1 are oscillated counterclockwise via a working lever 4d, a cabld 3 and a connecting rod 2. When they are fully oscillated, a limit switch 6 is actuated to cause an input port 7b to be in communication with an output port 7c so that the vacuum is led to the space 4e to oscillate the air directing plates 1 in the opposite direction. When the change-over switch 9 is connected to an ON contact 9b or an OFF contact 9a, the vacuum supply side is fixed and the air directing plates 1 are fixed at the deviated position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drive device that can automatically drive a wind direction plate provided at an air outlet of an automobile air conditioner or the like, and can swing the direction of the blown air in the left-right direction, etc. .

Conventionally, it has been considered to drive the wind direction plate with a motor, but devices that use a motor require a speed reducer, which has the problem of being noisy and expensive because the motor and speed reducer are required. There is.

Therefore, in view of the above problems, a pneumatic mechanism such as a diaphragm mechanism or a piston mechanism is used to drive the wind direction plate installed at the air outlet of the air conditioner. By applying different types of air pressure alternately using a solenoid valve and reciprocating the pneumatic actuating mechanism, the wind direction plate can be automatically oscillated, without the need for complicated manual operations as in the past. We have developed a wind direction plate drive device for air outlets that eliminates the unevenness of indoor temperature distribution and provides comfortable air conditioning.

The present invention is an improvement on this prior art, and is made so that, in addition to the oscillating movement of the wind direction plate, the wind direction plate can be moved to one side or the other and then fixed by operating a changeover switch.

However, the wind direction plate drive device for the air outlet of the present invention has a high
It is configured to reciprocate by the pneumatic actuation mm to which two types of air pressure from two types of low air pressure sources are applied alternately, and the reciprocating movement of this pneumatic actuation mechanism! A solenoid valve is provided between the wind direction plate, the two types of air pressure sources and the pneumatic actuation mechanism, and switches and supplies one of the two types of air pressure to the air pressure actuation mechanism, and the electromagnetic valve and the power source are connected to each other. A changeover switch is provided for switching between an OFF terminal that continuously connects, an OFF terminal that is always disconnected, and an intermittent terminal that periodically connects, and by switching the changeover switch, the direction of the wind direction plate is moved to one side and fixed, Or move it to the other side and fix it,
Alternatively, it is characterized by being configured to perform reciprocating motion and swinging motion.

The pneumatic actuating mechanism used in the wind direction plate driving device of the air blower [] of the present invention is driven in the left and right direction by air pressure such as a diaphragm 1I4Fi or a bismine mechanism, and specifically, a vacuum actuator, an air cylinder, etc. are used. can.

The wind direction plate driven by this pneumatic operation mechanism is two or more plate-like bodies that are installed across an air passage such as a duct and are parallel to each other. It is designed to be able to swing left and right while maintaining a parallel state. This wind direction plate is suitable as a wind direction plate for a duct such as an air conditioner of an automobile or the like where a vacuum source of 1 q is easily available.

Note that the present invention is not limited to automotive air conditioners as long as a high-pressure or low-pressure air pressure source is easily available. The swinging direction of the wind direction plate can also be freely set according to the purpose of left/right or up/down.

The solenoid valve switches and supplies two types of air pressure, high and low, to the pneumatic operating mechanism. Note that atmospheric pressure can be used as one of the air pressure sources.

The other air pressure source may be a low pressure source or a high pressure source.

As an intermittent device that periodically interrupts the supply of electricity to a solenoid valve,
It can be a mechanical disconnection device that turns off the power when the wind direction plate tilts to one side and connects a solenoid valve when the wind direction plate moves to the other side by the force of a spring, or it can be electrically switched off at regular intervals. It may be an interrupter using an electric circuit that is repeatedly turned on and off.

The changeover switch used in the present invention is ON, OFF and 1
It has three terminals of 7i connection terminals, and a conventionally known three-stage changeover switch can be used.

The air blowing outlet wind direction plate driving device of the present invention can tilt the wind direction plate to one side, fix it by tilting it to one side, or make an oscillating movement by simply changing the changeover switch. You can freely control 1 to 3 movements.

Specifically, it is used in an automobile air conditioner, and one terminal of the changeover switch fixes the wind direction plate in the direction of the occupants of the automobile, and the other terminal fixes the wind direction plate in the direction where the wind does not hit the occupants.
The second terminal allows the wind direction plate to swing continuously to make the wind direction continuous. This allows the passenger to obtain the desired wind direction.

In addition, by using two or more wind direction plate drive devices, multiple wind direction plate drive plate devices can be centrally controlled, and the wind direction from each wind direction plate of multiple devices can be concentrated on one passenger, directed in the opposite direction, or continuously. It can also be swung.

Thus, the air direction plate driving bag of the air outlet of the present invention.

By using the stand, you are freed from the hassle of operating the wind direction plate and can receive comfortable ventilation.

Examples will be explained below.

The device of this example is used in an automobile air conditioner, and an outline of the device is shown in Figs. 1 and 2, and Fig. 3
The diagram shows the electrical circuit.

This device consists of four wind direction plates 1 which are held rotatably about a support rod 1a in parallel to each other in a direction crossing an air outlet 10 of an air conditioner for an automobile, and each wind direction plate. 1, a connecting rod 2 connected to one end of the connecting rod 1 via a connecting bottle 1b, a diaphragm mechanism 4, and a diaphragm mechanism 4.
and the connecting rod 2, an operating arm 5 constituting the disconnecting device, a limit switch 6 that is turned on and off by the operating arm 5, a solenoid valve 7 (not shown in FIG. 3), a power source 8, and It is composed of a changeover switch 9.

The diaphragm mechanism 4 includes a telescoping diaphragm 4b provided in a case 4a, a spring 4c that biases the diaphragm 4b in a certain direction, an operating rod 4d driven by the diaphragm 4b, and formed between the case 4a and the diaphragm 4b. The working space 4e and this working space 4
It is composed of an air pressure introduction hole 4f that introduces air pressure into the air hole 4f. The operating arm 5 is connected to the operating rod 4d, and has two tip portions 5.
Switch terminal 6a of limit switch 6 by a and 5b
is driven to perform on/off operations.

The solenoid valve 7 has two input ports 1-7a and 71t and one output port C, and the position of the input port, that is, one of the input port doors a or b and the output port door C, is controlled by the electromagnetic coil 7d. It has a conductive mechanism. The input port door a is connected to an intake manifold section of an automobile engine via a vacuum hose or the like. On the other hand, input port door b is currently open.

The changeover switch 9 has an off terminal 9a1, an on terminal 9b, and an intermittent terminal 9C. The main terminal 9b is connected to the electromagnetic coil 7d of the electromagnetic valve 7. The intermittent terminal 9C is connected to a limit switch and connected to the electromagnetic coil 7d.

Solenoid coil 7d of solenoid valve 7, power supply 8, changeover switch 9
The circuit configuration including the microswitch 6 and the microswitch 6 is as shown in FIG.

The apparatus of this embodiment has the above configuration. In this device, when the changeover switch 9 is connected to the disconnection terminal 9C connected to the microswitch 6, which is the disconnection device, the solenoid valve 7 is operated, and the input port door a and the output port door C are brought into conduction, and vacuum pressure is applied through the input port door a. is introduced into the working space 4e of the daisefrom mechanism 4. Therefore, the diaphragm 4b is driven rightward as shown in FIG. 1, and the actuating rod 4d, cable 3, and connecting rod 2 are integrally driven rightward. This causes the four wind direction plates 1 to swing counterclockwise around the support rod 1a. This state is shown in FIG. When the operating rod 4d is driven to the upper right end in FIG. 1, the tip 5a of the operating arm 5 pushes the terminal 6a of the limit switch 6 in the direction of arrow A, opening the limit switch 6. This cuts off the current to the fill 7d of the solenoid valve 7. The solenoid valve 7 closes the input port door a by a return spring contained therein, thereby communicating the input ports 1 to 7b and the output ports 1 to 70. Therefore, atmospheric pressure is introduced into the working space 4e through the conduction hole 4f of the diaphragm 11 structure 4. Therefore, the diaphragm 4b of the diaphragm 4 is pushed by the biasing force of the spring 4C and is driven in the direction of arrow B as shown in FIG. This movement of the diaphragm 4b rotates the four wind direction plates 1 clockwise through the operating rod 4d, the drive cable 3, and the connecting rod 2.

When the dial flam 4b reaches the left end as shown in FIG. 2, the tip 5b of the operating arm 5 drives the terminal 6a of the limit switch 6, turning the limit switch 6 on. As a result, the coil 7d of the solenoid valve 7 is energized again, the solenoid valve 7 is switched, the input port door a and the output port door C are connected, and vacuum pressure acts on the working space 4e of the diaphragm mechanism 4, as shown in FIG. Diaphragm 4b as shown
is driven in the direction of the Δ arrow.

By setting the changeover switch 9 to the intermittent terminal 9C in this way, the wind direction plate 1 swings at a constant period in the left and right directions of the A arrow direction and the B arrow direction shown in FIGS. 1 and 2. . Therefore, the air flowing into the air outlet 10 flows along the direction of the wind direction plate 1 in the direction of arrow A and the direction of arrow A.

When the changeover switch 9 is connected to the ON terminal 9b, a current always flows through the coil 7d of the solenoid valve 7, and the input port door a and the output port door 1-70 are communicated with each other. Therefore, vacuum pressure is always applied to the working space 4e of the diaphragm mechanism 4, and the working space 4e of the diaphragm mechanism 4 is fixed in the state shown in FIG. In this case, the wind direction plate 1 is fixed at the position shown in FIG. 1, and the air coming out of the air outlet 10 is blown out in the direction of arrow A.

When the selector switch 9 is connected to the off terminal 9a, no current is supplied to the coil 7d of the solenoid valve 7.

Therefore, the return spring of the solenoid valve 7 allows the solenoid valve 7 to communicate between the input port door b and the output port door C. Therefore, atmospheric pressure acts on the operating shoe 40 of the diaphragm mechanism 4, and the diaphragm 4b is fixed in the state shown in FIG. 2 by the biasing force of the spring 4c.

In this case, the wind direction plate 1 is fixed at the position shown in FIG.
With only a switching operation, the wind direction plate 1 can be switched to a state where it is biased to one side, a state where it is biased to the other side, or a state where it swings from side to side, and the air is blown out from the air outlet 10 accordingly. The direction of the air can be easily switched between three directions: fixed in the direction of the arrow A, fixed in the direction of the arrow A, and continuously fluctuating in the direction of the arrow A and the direction of the arrow A.

Although a mechanical interrupter was used as the interrupter in this embodiment, as shown in FIG. 4, the astable multivibrator 1
1 can also be used to perform electrical intermittent operation.

FIG. 5 shows a specific example in which the wind direction plate IJJ device of this embodiment is used in an automobile air conditioner. Figure 5 shows a duct 12 provided inside the front seat panel of a car and this duct 1.
2, four air outlets 10a110b, 10c, 1
0d 1. : Shows the positional relationship between the wind direction plate 1 provided to the passenger, the driver seat W113, and the passenger seat 14. 2 air outlets 1
0a and 10b are for the driver's seat, and these air outlets 1oa and iob
Two sets of wind direction plates 1 provided at the front are interlocked and driven by two diaphragm mechanisms 4. Furthermore, the air pressure supplied to these two diaphragm mechanisms 4 by a solenoid valve 7 is switched between high and low levels. The solenoid valve 7 is controlled by a circuit including a changeover switch 9 and an astable multivibrator 11. In this usage example, two sets of wind direction plates 1 are linked, and by switching the terminals of the changeover switch 9, they both send wind in the direction of the driver's seat, and vice versa. (indicates the current state) or continuously changes the direction of the wind. The structure of the two sets of wind direction plates on the passenger seat 14 side is also the same as the mechanism on the driver's seat 13 side.

[Brief explanation of drawings]

FIG. 1 is a schematic mechanical diagram of a wind direction plate driving device for an air outlet, which is an embodiment of the present invention, and FIG. 2 is a schematic diagram of the mechanism when the wind direction plate is in the opposite direction to the wind direction plate shown in FIG. 1. Figure 3 is an electrical circuit diagram including the circuit of the wind direction plate drive device, Figure 4 is another circuit diagram,
FIG. 5 is a schematic diagram showing the relationship between the duct, the driving degree, and the arrangement of the passenger seat of an automobile air conditioner using the wind direction plate drive device of the embodiment. 1... Wind direction plate 4... Diaphragm mechanism 5
... Operating arm 6 ... Intermittent device 7 ... Solenoid valve 8 ... Power supply 9 ... Selector switch 1
0... Air outlet patent applicant Nippondenso Co., Ltd. Agent Patent attorney Hirodo Okawa Benjaju Shudo Fujitani Patent attorney Akio Maruyama 98 Figure 1 Figure 3

Claims (1)

[Claims] A pneumatic operating mechanism to which two types of air pressure are applied alternately from high and low air pressure sources, and a wind direction configured to perform reciprocating motion by reciprocating the pneumatic operating mechanism. a plate, a solenoid valve installed between the two types of air pressure sources and the pneumatic actuation mechanism, and configured to switch and supply one of the two types of air pressure to the pneumatic actuation mechanism; and the electromagnetic valve and the NKA. A changeover switch is provided to change over an on terminal that continuously connects to an on terminal, an off terminal that is always disconnected, and an intermittent terminal that is periodically disconnected, and by switching the changeover switch, the direction of the wind direction plate is moved to one side and fixed. A wind direction plate driving device for an air outlet, characterized in that it is configured to be moved in one direction or the other and fixed, and the direction plate is configured to perform a reciprocating oscillating motion.