JPS6196349A - Vehicular auto-register - Google Patents

Abstract

PURPOSE:To accelerate the changing-over speed of air flow direction with simple structure and, in addition, reduce the working noise during the changing- over by a structure wherein the opening and closing drive of each controlling port at a fluidic type air blowing-off part is performed by means of an expanding and contracting actuator made of shape memory alloy. CONSTITUTION:Coiled expanding and contracting actuators 38 and 40, which are made of shape memory alloy, are disposed in tension at both ends of an opening and closing plate 36 to open and close alternately the first controlling port 32a of a first controlling nozzle 32 and the second controlling port 34a of a second controlling nozzle 34 at the suction side opening end 30a of an air blowing-off port 30. The expanding and contracting actuators 38 and 40 are alternately expanded and contracted through the energizing to the actuators controlled by a control circuit 42. Concretely, when the one expanding and contracting actuator 38 contracts itself through the energizing from the control circuit 42 and consequently the opening and closing plate 36 locates leftward, the second controlling port 34a is closed by a shielding part 36b and negative pressure is produced at the portion D of the air blowing-off port 30, the air flow blowing-off from a duct 10 is bent rightwards.

Description

[Detailed description of the invention] [Industrial application field 1 TECHNICAL FIELD The present invention relates to an autoregister for a vehicle.

[Prior Art] Generally, in a vehicle equipped with an air conditioning system, an air outlet is placed in the driver's seat for blowing out conditioned air through a duct toward the inside of the interior of the vehicle. The air outlet is provided with a register for changing the direction of the air flow.

By the way, in the conventional register (J5, as shown in FIG. 1), a fluid element type air blowing part 12 is installed at the tip of the air blowing side of the duct 10 arranged in front of the driver's seat in the small compartment. ing.

The fluid element type air outlet 12 has a horn-shaped air outlet 14 that is formed to gradually increase in diameter toward the outlet side and communicates with the duct 10, and an air outlet 14 that introduces air inside the duct 10. 1st ft, I+
It consists of a control nozzle 16 and a second control nozzle 18 which is provided on the opposite side of the first control nozzle 1G and which introduces the air in the duct 10 and blows it out into the small diameter part of the air outlet 14 in the same manner as described above.

A solenoid 20 is disposed close to the first control port 16a of the first control nozzle 16, and a solenoid 22 is similarly disposed close to the second control port 18a of the second control nozzle 18. has been done.

Further, on the first control hole 16a side, there is provided an on-off valve 24 which is biased by a spring member to block the first control port 16a and is attracted to the solenoid 20 by energizing the solenoid 20 and listens to the first control hole 16a. Similarly, the second control port 18a is biased by six spring members to close the second control port 18a, and when the solenoid 22 is energized, it is attracted by the solenoid 22 and opens the second control port 18a. '+I II
The installation of I block ↑26 has been completed.

Therefore, both solenoids 20 and 22 are energized and the mountain valve 2 is closed.
4.26, the first control lo 16a and the second t111tI1
When 018a is blocked, the airflow from the duct 10 continues straight from the air outlet 14 without changing its direction, but the airflow blown out from the air outlet 14 is changed in the direction of arrow a shown in FIG. In this case, if one solenoid 20 is energized and only the first control nozzle 16a is listened to, the second control nozzle 18 side in the air outlet 14 becomes negative pressure, so that the straight air flow from the duct 10 is directed to the air outlet 14. It is bent inside and blows out in the direction of arrow a.

In addition, when the direction of the air flow is to be in the direction indicated by the arrow, if the solenoid 22 is energized and the 2111th part port 18a is opened, the direction of air blowing from the air outlet 14 is changed to the direction b for the same reason as described above. be able to.

In addition, as another conventional example, there is a swing grille type auto register that uses an electric motor and a reciprocating IF to drive a wind direction switching plate provided on the air outlet side of the duct to periodically change the direction of the air outlet flow. be.

[Problems to be Solved by the Invention] By the way, the other side of the conventional example described in 114 is 1) In the false register, the wind direction is switched by a solenoid, so that the ``s1-'' is caused by the ON/OFF operation of the solenoid. Operation u
The switching part of A is jarring, and the first part of the solenoid
There is a problem in that only two opening/closing states of the second control port or the opening/closing state of the second control port are possible, and the wind direction is determined in two ways, making it impossible to change the range of the wind direction.

Furthermore, since there is no periodic switching of the wind direction, there is a problem in that the conditioned air cannot be distributed throughout the hollow space.

Furthermore, although the latter conventional example does not periodically switch the wind direction, there is a problem in that the switching speeds are similar.

[Object of the Invention] The present invention has been made in view of the problems of the prior art described above, and its purpose is to make it possible to freely adjust the range of the air blowing direction compared to the fluid control element type resistor. To provide an auto register for a vehicle that is low in cost, reduces the operating sound of wind direction switching JffiD5, and has a hour wheel structure compared to a swing grill register and can increase the calm direction switching speed. It is in.

[Means and actions for solving the problem] In order to achieve this object, the present invention [a horn-shaped air horn which is provided in communication with the outlet side of the end duct and from which air-conditioned air is blown out into the hollow. A fluid element type air blowing section comprising a blowing outlet and a first control nozzle and a second control nozzle that respectively introduce the air flow in the duct and guide it into the small diameter part of the air blowing II, the 111th square nozzle and the second an Inl opening hole for opening and closing each control port of the control nozzle; a telescoping actuator made of a shape memory alloy stretched over the opening/closing member; and a control circuit for controlling energization to the telescoping actuator; including;
It is characterized in that the direction of the airflow blown out from the air outlet is periodically changed by controlling the energization of the expansion and contraction actuator by the control circuit.

[Embodiment] A preferred embodiment of the present invention will be described below with reference to the drawings in FIGS. 1 to 3.

In FIG. 1, a fluid element type air blowing section 28 is provided on the air blowing side of the ducts 1 to 10.
are provided at opposite positions across the air outlet 30, such as a horn-shaped air outlet 30 that communicates with the duct 10 and blows out the conditioned air into the mold room.
It consists of a first control nozzle 32 and a second control nozzle 34 that introduce air within the range of 0 and blow it out into the small diameter portion of the air outlet 30.

Then, the suction side opening end 30a of the air outlet 3o, the first
An opening/closing plate 36 is disposed as the first member of the C-th dimension in proximity to the first control port 32a of the first control nozzle 32 and the second control port 34a of the second control nozzle 34, and the opening/closing plate 36 has shielding portions on both sides, respectively. A through hole 36G is formed in the center of the opening/closing plate 35a and 36b.A coiled expansion/contraction actuator 38.4 made of a shape memory alloy is installed at both ends of the opening/closing plate 36.
0 is tensioned, and the telescopic actuator 38.4
0, it expands and contracts to N by controlling the current supply 11 from the control circuit 42.

For example, when electricity is applied to the telescopic actuator 40 and the telescopic actuator 40 is heated to a temperature higher than the transformation temperature, the telescopic actuator 1-40 contracts and the opening/closing plate 36 moves to the position shown in FIG. 32a is closed by a shielding part 36a, and the opposite second control port 34a is opened by a through hole 36G.

Next, the circuit configuration of the control circuit 42 will be explained with reference to FIG.

A pulse signal of a constant frequency is output from the astable multivibrator 44 by the gate 1C, and this pulse output is inputted to the -h of the NAND gate 46, and the other input terminal of the NAND gate 46 has a voltage of 1 lb. is being applied.

On the other hand, NAND gate 48, resistor 50, diode 52
．． An oscillation circuit 60 is constituted by a variable resistor 56 and a capacitor 58, and by appropriately changing the resistance value of the variable resistor 56, the time constant due to the variable resistor 56 and the condenser 58 is changed. The duty ratio of the output pulses can be changed as appropriate.

NAND gate 62 inverts the pulse output from astable multivibrator 44 by NAND gate 46 (
No. 8 and the pulse signal from the oscillation circuit 60 are input to J.
3. When the output level from the astable multi-by-break 44 and the output level from the oscillation circuit 60 are both 1 level, turn on the i~silan star 4 and apply the wire voltage 66 to one telescopic actuator 38. .

Further, the output signals from the astable multivibrator 44 and the oscillation circuit 60 are input to the NAND goo 1-68, and the output level from the astable multivibrator 44 and the output level from the oscillation circuit 60 are opposite ( At the time of B, an output signal is generated, and the output 17g from the NAND gate 68 turns on the I-range staff 0, and the L 66 is applied to the other telescopic actuator 40 in a power supply type.

In this way, the expansion and contraction actuators 38 and 40 are alternately energized, and the energization time b is determined by the duty control of the pulses generated in the yarn generating circuit 60.

Due to such a +i4 configuration, as shown in FIG. 3 (Δ), one of the telescopic actuators 38 is retracted by energization from the control circuit 42, and when the opening/closing plate 36 is positioned to the left, the second control port 34
Since air is emptied by the shielding portion 3Gb, the pressure in the D portion of the air outlet 30 becomes negative, and the air blowing flow from the duct 10 is bent to the right.

Then, when the power to the telescopic actuator 38 is de-energized/stopped and the power to the other telescopic actuator 1-40 starts to be energized, the opening/closing plate 36 begins to move in the direction of the arrow fh, as shown in FIG.
), when the first control port 32E1 and the second control port 34a are partially shielded by the shielding portion 36a135b, the air blowing flow advances straight.

When the other expansion/contraction actuator 1-1 is heated above the transformation temperature and completely shrunk, the first control port 32a is completely blocked and the air outlet 30 is completely closed, as shown in FIG. 3 (C1).
The E part becomes 9 pressure and the air blowing flow is bent to the left.

Furthermore, when the number of fluid line f-type air blowing sections 28 increases, each of the air blowing sections 28a, 28b, 28 as shown in FIG.
Notch holes 72a, 72 are provided at positions corresponding to each air outlet of c.
If it is configured with a single opening/closing plate 72 provided with b and 72c, each control port can be controlled collectively with a pair of telescoping actuators 38 and 40 (the telescoping actuator 40 is omitted in the figure). can.

Furthermore, as shown in FIG.
It can be configured with a first on-off valve 74a that opens with the 281st control port 34a, and a second on-off valve 74b that opens with the 281st control port 34a. In other words, at the pivot point of each on-off valve 74a, 74b!・-Each opening/closing valve 74a is provided with a spring.
, 74b are pressed so as to close the first control port 32a1 and the 211st IJ port 34a, and each on-off valve 7
A telescopic actuator 7 is installed at the tip of each of 4a and 74b.
6a and 76b are stretched, and the telescopic actuator 76a,
76F) by controlling the energization to the fifth
Each on-off valve 74a, 74 as shown in Figures (A), (B), and (C)
It is constructed so that b is 1 k@.

[Effect of the Invention 1] As explained above, according to the present invention, each control port 11i1 of the fluid control element type air blowing section is driven to close by the telescopic actuator made of a shape memory alloy.
Compared to conventional fluid control element type resistors, the air blowing direction range can be easily adjusted, and the stress is low.
Furthermore, the operating noise when switching the wind direction can be reduced.

In addition, the wind direction switching speed can be increased with a simpler structure than the conventional swing grill register.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of an embodiment of the dual-purpose auto register of the present invention, 6 Fig. 2 is a circuit diagram showing the control circuit of Fig. 1 in two sections, and Fig. 3
FIG. 4 is an explanatory diagram of the operation of the above-mentioned embodiment, FIG. 4 is an explanatory diagram of the opening/closing member provided in a plurality of fluid control element type air blowing sections according to another embodiment, and FIG. 5 is an explanatory diagram of another embodiment. FIG. 6 is an explanatory diagram of a conventional width side register. 10... Duct, 28... Fluid control element type air outlet, 30... Air outlet, 32...First control nozzle, 34...Second control nozzle, 32a...First control port, 34a...22nd IIIIII rl, 36.7
2.74a, 74b...opening/closing member, 38.40.
76a, 76b...Extendable activator, 44...Control circuit. Applicant Kojima Press - [Gyo Co., Ltd. 1 Agent Patent Attorney Yoshi 1 (1 Kenji [7-28] (1 other person) Figure 3 (C) Figure 4

Claims (3)

[Claims] (1) A horn-shaped air outlet that is connected to the outlet side of the duct and blows out conditioned air into the vehicle interior, and the airflow inside the duct is introduced into the small diameter part of the air outlet. a fluid element type air blowing section consisting of a first control nozzle and a second control nozzle;
A control circuit comprising: an opening/closing member for opening and closing each control port of a control nozzle; a telescoping actuator made of a shape memory alloy stretched over the opening/closing member; and a control circuit for controlling energization of the telescoping actuator. An auto-register for a vehicle, characterized in that the direction of air flow blown out from an air outlet is periodically changed by controlling energization to an expansion/contraction actuator. (2) In the register according to claim 1, when the first control port is closed by reciprocating movement by driving the opening/closing member actuator, the second control port is opened, and the first control port is opened. An auto register for a vehicle, characterized in that the auto register for a vehicle is integrally formed so as to close a second control port. (3) In the register according to claim 1, the opening/closing member swings by the drive of each telescoping actuator to open/close the first opening/closing valve and the second control opening. A vehicle auto register comprising a second on-off valve.