JPS604021Y2 - Blowout flow switching device for fluid blowout device - Google Patents

Description

[Detailed description of the invention] The present invention is a fluid blowing device used in a vehicle air conditioner or other device for ventilating a vehicle interior, and in particular, a fluid blowing device using the principle of side wall adhesion by a fluid control fluid element. It is related to.

In a vehicle equipped with a ventilation device V as shown in FIG. 1, a fluid blowout device having a fluid blowout port 1 is provided to send fluid from the ventilation device into the vehicle interior. FIG. 2 shows the basic structure of a type of fluid blowing device that utilizes the principle of fluid adhesion to a side wall by a fluid element.

This fluid blowing device has a left side wall 2 forming a left control port 3a.
a and a right side wall 2b forming a right control port 3b, and a fluid outlet 1 having a main fluid passage 7 formed between the left and right side walls 2a and 2b and extending to an opening 8; a pressurized fluid chamber 5 extending upstream of the main fluid passageway 7 through the
It is provided on the left and right side walls of the main fluid passage 7 and is open from the control chambers 4a and 4b communicating with control ports 3a and 3b that blow out fluid in a right angle direction toward the main fluid passage 7.

The left and right control chambers 4a, 4b have a left control chamber inlet 17 for guiding fluid from the pressurized fluid chamber 5 to these control ports 3a, 3b.
a and a right control chamber entrance 17b, while the left and right control chambers 4
Electromagnetic coils 12 equipped with flappers 9 are installed inside a and 4b, and the operation of each electromagnetic coil 12 opens and closes the left and right control chamber ports 17a and 17b to open and close the flow from the left and right control ports 3a and 3b. I'll stop it.

A magnetic piece 10 is attached to the flapper 9, and the flapper 9 is attached to the electromagnetic coil 12 via a coil spring 11. The action closes the left and right control chamber entrances 17a and 17b, and conversely, when each mode changeover switch is on, the flapper 9 together with the magnetic piece 10 is attracted to the electromagnetic coil 12 to open the left and right control chamber entrances 17a and 17b.

Therefore, when one of the mode selector switches is turned on, the control port 3a or 3b on the side that is turned on becomes conductive, and the fluid flow in the main fluid passage 7 is biased to the left or right with respect to the center line. let

Generally, a plurality of fluid outlet ports 1 having such a structure are provided in one fluid outlet device, but the flow direction of the outlet flow at the plurality of fluid outlet ports 1 can be changed in various combinations. In order to do this, the mode changeover switches of the electromagnetic coils 12 provided at each fluid outlet 1 are connected to each other so as to interlock with each other, and an oscillator is incorporated between the power source and the mode changeover switches to intermittently switch on the electromagnetic coils 12. It has a blowout flow switching device that turns on and off the airflow.

An example of a conventional blowout flow switching device for such a fluid blowout device is shown in FIG. 3, for example.

This figure shows a blowout flow switching device for turning on and off the electromagnetic coils 12 and 12' installed only in the left control chambers 4a and 4a' of each fluid outlet 1, but a similar blowout flow switching device is shown. The device is installed in the electromagnetic coil 12.1 of the right control room 4b, 4b'.
It can also be used only on the 2' side, and the left and right control chambers 4a,
It can also be provided on both of 4a', 4b, and 4b'.

The conventional blowout flow switching device A shown here includes an IC oscillator 14 whose input part 14a is connected to a power supply 13, and an output part 14b of the IC oscillator 14 or a power supply side terminal 15a connected to the power supply 13.
,...15j are connected, and the output side terminals 16a,
16b is the electromagnetic coil 12.12 of each fluid outlet 1.1'
The mode changeover switch 15 is connected to the mode changeover switch 15.

The mode changeover switch 15 transfers the current from the power supply 13 to the electromagnetic coils 12 and 12 provided at each fluid outlet 1 and 1'.
′, the power supply side terminal has sliders 16 and 16′ corresponding to the number of fluid outlets 1 and 1′, while the power supply side terminal is connected to the power supply 1.
Terminals 15a, 15c, 15f directly connected to 3
Terminal 15e connected to g 151 and IC oscillator 14
t 15, 11 or terminal 15b for turning off the power supply side;
15d, 15g, and 15h are provided.

Further, the sliders 16, 16' are connected by a connecting rod 18 so that they can move in parallel with each other, and thereby the power supply side terminals 15a, . . . , to which the switching member is connected.
...15e, and the power supply side terminal 15f to which the switching member is connected
,...15j are in one-to-one correspondence.

Therefore, the power supply side terminals 15a, . . . 15e and the power supply side terminal 15f.

...15j by various combinations of power supply 1.
3, or by connecting it to the IC oscillator 14 or the off contact, the wind direction at each fluid outlet 1 can be biased in the same direction, biased in opposite directions, mutually biased inwardly or outwardly, or It is possible to obtain a left-right swinging flow by switching intermittently.

However, such a conventional blowout flow switching device uses an IC oscillator 14 to switch the current intermittently to obtain the above-mentioned left-right oscillating flow, which has the disadvantage of increasing manufacturing costs. Ta.

However, if the IC oscillator is removed and it is fixed only to the air blowing in a certain direction, only a certain area in the passenger compartment will get cold, so the mode changeover switch 15 must be operated frequently. There is a risk that problems may arise.

Therefore, there has been an increasing demand for a blowout flow switching device that can be manufactured at a relatively low cost and that can provide a left-right oscillating flow.

The present invention was made in response to such conventional demands, and its purpose is to provide a blowout flow switching device that is relatively inexpensive and can perform various functions.

In order to achieve this objective, the present invention includes a pressurized fluid chamber, a plurality of fluid outlets each having a main fluid passage communicating with the pressurized fluid chamber, and a plurality of fluid outlets provided on the left and right side walls of the main fluid passage. A fluid blowout device that is connected to a control room and an electromagnetic coil with a flapper that is placed in the control room and that opens and closes a flow passage in the control room, and that changes the direction of the blowout flow by turning on and off the electromagnetic coil. The sliders of the mode changeover switches for the electromagnetic coils in the plurality of fluid outlet ports are connected to each other so as to interlock with each other, and the mode changeover switches are connected to a power source via a heat band relay. A horizontally oscillating flow is obtained from the fluid outlet by turning on and off the fluid outlet.

The present invention will be described in detail with reference to the accompanying drawings.

4 to 6 are diagrams showing embodiments of the present invention.

Among these, the blowout flow switching device A' of the fluid blowout device according to the embodiment shown in FIG. 4 incorporates a heat band relay 19 instead of the conventional IC oscillator 14, and
A mode changeover switch 15 having a plurality of power supply side terminals 15a, . . . 15j connected to the output section 19b1 of the relay 19 or the power supply 13 is provided.

The heat pad relay 19 has a terminal 19c connected to the power supply 13, and a heat band 19g having a contact 19d that contacts the terminal 19c.The heat band 19g has one end connected to the contact 19d and the other end connected to the mode. A resistance wire 19f connected to the power supply terminal of the changeover switch 15 is wound around it, and a snap spring 19e is attached that biases the contact 19d of the heat band 19g toward the terminal 19c.

On the other hand, as the power supply side terminal of the mode changeover switch 15,
Terminals 15a, 15c, 15f directly connected to power supply 13
, 15 connected to 15i and heat band relay 19
e, 15j or off terminal 15b, 15d, 15g, 15
h are provided, and these power supply side terminals 15a,...
- The sliders 16 and 16' slide independently between 15c and between the power supply terminals 15f, . . . 15i.

Since the slider 16 and the slider 16' are fixedly connected by the connecting rod 18 and can slide in parallel with each other, any one of the power supply side terminals 15a, . . . 15e, Corresponding power supply side terminals 15f,...15
There is a one-on-one relationship with one of j.

And the output terminals 16a and 16 of the mode changeover switch 15
b means electromagnetic coil 12.12' provided only on one side of each fluid outlet 1, 1' (in the case of knee, the fluid outlet 1 is on the left side, and the fluid outlet 1' is also provided with an electromagnetic coil 12.12' on the left side). 12' respectively) and are operated to switch the flow direction at the fluid outlet ports 1 and 1'.

Although the arrangement of the changeover switch is not particularly limited, for example, as shown in FIG.
．． 16' switching operation may be performed.

In order to have such a configuration, consider the case where the slider 16 is set to the power supply side terminal 15a and the slider 16' is set to the power supply side terminal 15f.

In this case, since the two power supply side terminals 15a and 15f are directly connected to the power supply 13, the current from the power supply 13 passes through the sliders 16 and 16' of the mode changeover switch 15 to the fluid outlet ports 1 and 1'. of the electromagnetic coils 12.12', actuating both electromagnetic coils 12.12' to open each control chamber 4a, 4a'.

This causes a flow S through the main fluid passages 7, 7'. S' is applied to each side wall 2b under the action of the flow from each control port 3a, 3a'.
, 2b', that is, the deflected flows S□, 81' flow out from the openings 8, 8' (FIG. 4).

In addition, the sliders 16 and 16' are connected to the power supply side terminal 15b, respectively.
When set to 15g, these power supply side terminals 15b, 1
5g is an off terminal, so the fluid outlet 1a, l
The electromagnetic coils 12, 12' of b do not operate, and the main fluid passage 7
, 7' flow S.

S' is each deflected flow S2. S2' and flows out from the openings 8, 8'.

In addition, the sliders 16 and 16' are connected to the power supply side terminals 15c and 15c, respectively.
15h or power supply side terminal 15d.

By setting 15i, two fluid outlets 1,
Fluid outlet 1' can be changed by changing one outlet flow to the right direction and the other outlet direction to the left direction, or vice versa.
, 1' can also be made into both internal flows or both external flows.

Furthermore, operate the slider 16, 16', set the slider 16 to the power supply side terminal 15e, and move the slider 16' to the power supply side terminal 15e.
Suppose that it is set to 5j.

In this case the current flows from the power supply 13 to the heat band relay 1
9 to the terminal 19c, and from here it passes through the contact 19d1, the resistance wire 19f1, the output terminal 19b1, the power supply side terminals 15e, 15j of the mode changeover switch 15, the slider 16.16', and the electromagnetic coil 12.12. ' begins to flow.

As a result, the electromagnetic coil 12.12' is energized and draws the flapper 9, opening the left control chamber 4a and opening the right deflection flow S1. Cause S□′ to occur.

However, when a current flows through the resistance wire 19f for a certain period of time, the heat band 19g is heated and stretches, causing the snap spring 19e to
The contact 19d is separated from the terminal 19c by the force.

As a result, the current flowing through the heat band relay 19 is cut off, the electromagnetic coil 12.12' is turned off, and the flapper 9 closes each control chamber 2a, 2a' to close the left deflection flow S2.
．． Wake up S2'.

After a further predetermined period of time during which no current flows, the heat band 19g cools and contracts, the contact 19d contacts the terminal 19c, conducts current to the resistance wire 19f, and turns on the electromagnetic coil 12.12'. Fluid outlet 1
, 1', the right deflection flow S1. Wake up S1'.

In this way, the electromagnetic coil 12.12' is intermittently turned on and off by the conduction/cutoff operation of the heat band relay 19, so that a left-right oscillating flow is obtained from the fluid outlet 1.1'.

In this way, it is possible to create a blowout flow switching device that has the same functions as the conventional one without using an expensive IC oscillator, and it is possible to easily procure parts and manufacture the blowout flow at a low cost. We were able to provide a switching device.

FIG. 5 is a diagram showing a second embodiment of the present invention.

The blowout flow switching device of the fluid blowout device according to this embodiment operates in the left-right swing mode using the mode changeover switch 15.
This embodiment is similar to the first embodiment in that a heat band relay 19 is used to intermittently turn on and off the electromagnetic coils 12, 12'.

However, the electromagnetic coil 12' is connected to the right side wall 2 of the fluid outlet 1'.
b', and the heat band relay 19
, another terminal 19i is provided opposite to the terminal 19c, and a contact 19h opposite to the contact 19d is provided at one end of the snap spring 19e, and the snap spring 19e
A contact 19h is provided at the other end, and a capacitor 20 is connected to the output terminal 19j connected to the contact 19h in parallel to the one power supply side terminal 15e of the mode changeover switch 15. This is different from the embodiment.

With this configuration, when the sliders 16 and 16' are set to the power supply side terminals 15a and 15f, respectively,
Electromagnetic coil 12.1 similar to that in the first embodiment above
The activation (or inactivation) of S2' causes a left deflection flow S2. S2'
is obtained.

Further, by similar operation, the sliders 16, 16' are connected to the power supply side terminals 15b, 15g; 15c, 15h; 15d, 151;
When set in order to each mode position, the composite blowout flow from the fluid outlet ports 1 and 1' becomes the right deflection flow S□
, S□', both inner streams S□, S2', and both outer streams S2. S
'1 and recirculates inside the vehicle.

Furthermore, by operating the sliders 16 and 16', when the slider 16 is set to the power supply side terminal 15e and the slider 16' is set to the power supply side terminal 15j, the heat band relay 19 is set to the mode. By being electrically connected to the changeover switch 15, on/off operations are repeated.

Assuming that the sliders 16 and 16' are set as described above, the heat band and
The current that entered relay 19 is connected to terminal 19C1 contact 19
d, the resistance wire 19f1 reaches the mode selector switch 15 through the output terminal 19b, and further passes through the slider 16' to reach the electromagnetic coil 12', which is energized.

As a result, a leftward deflection flow S'2 is generated at the fluid outlet 1'.

On the other hand, since the contact point 19h and the terminal 191 are open, no current is supplied to the electromagnetic coil 12 via the mode changeover switch 15, and as a result, the fluid outlet 1
However, a left deflection flow S2 is obtained again, and the composite blowout flow is a left deflection flow S2.
2. It becomes S'2.

When a certain period of time elapses in this state, the resistance wire 19f generates heat, which heats the heat band 19g and receives the force of the snap spring 19e that stretches, pulling the contact 19d away from the terminal 19c and simultaneously pulling the contact 19h into the terminal. 19i.

This blocks the current flowing through the resistance wire 19f, while allowing the current to flow through the snap spring 19e.
This current reaches output terminal 19j.

Due to the operation of the heat band relay 19, the electromagnetic coil 12' is immediately de-energized, and a right deflection flow S'1 is generated at the fluid outlet 1'.

On the other hand, in the electromagnetic coil 12, since the current that reaches the output terminal 10j is first charged to the capacitor 20, the electromagnetic coil 12 is charged until the capacitor 20 is completely charged.
continues to be in a non-excited state, and the left deflection flow S2 continues at the fluid outlet 1.
is obtained, and the combined outlet flow is both external flows S2. It becomes S'1.

After that, when the charging of the capacitor 20 is completed, a current starts to flow to the electromagnetic coil 12, and the blowout air at the fluid outlet 1 becomes a right deflection flow S□, and the combined blowout flow becomes a right deflection flow S1.
It becomes S'1.

Next, when no current flows through the resistance wire 19f for a certain period of time again, the heat band cools and contracts, and at the same time as the contact 19d contacts the terminal 19c, the contact 19h separates from the terminal 19i.

As a result, the electromagnetic coil 12' is immediately turned on to generate a leftward deflection flow S'2 at the fluid outlet 1'.

On the other hand, since the capacitor 20 is connected in the circuit from the power supply 13 to the electromagnetic coil 12, even if this circuit is turned off, the current from the capacitor 20 is supplied to the electromagnetic coil 12, and the fluid is discharged from the fluid outlet 1. In order to make the flow a left deflection flow S□, the combined blowout flow becomes both internal flows.

After that, when the discharge from the capacitor 20 is completed, the current is no longer supplied to the electromagnetic coil 12, and the blowout air at the fluid outlet 1 becomes the left deflection flow S2, and the combined blowout flow becomes the left deflection flow S2.
t”2.

In this way, when the slider 16, 16' is set to the left-right swing mode of the power supply side terminal, the composite blowout flow at the plurality of fluid outlet ports 1, 1' is the right deflection flow s,, s'□, both Outflow S2. S'1, left deflection flow S2? ”2, both internal streams S1.S
The cycle changes in the order of '2' and circulates inside the vehicle.

In this way, with a relatively inexpensive and simple configuration, the direction of the blowout flow from the fluid blowout device can be changed in a manner that better meets the needs of the occupants.

As mentioned above, the present invention replaces the conventional IC oscillator with
Since it has become possible to turn on and off the electromagnetic coil using a relatively inexpensive heat band relay, it has become possible to provide a blowout flow switching device that can obtain a left-right oscillating flow at a lower cost than before.

Furthermore, by using a heat band relay, it is now possible to easily modify the structure to some extent, making the changes in the wind direction of the left-right oscillating flow more complex, and obtaining the most favorable blowout flow for the passengers. It has also become possible.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a fluid blowing device to which the present invention is applied, Fig. 2 is a plan cross-sectional view showing one of the fluid blowing ports of the fluid blowing device, and Fig. 3 is a blowout flow switching device of the fluid blowing device. 4 is a circuit diagram showing a first embodiment of the present invention, FIG. 5 is a circuit diagram showing a second embodiment of the present invention, and FIG. 6 is a circuit diagram showing a conventional example of the present invention. FIG. 3 is a plan sectional view and a front view schematically showing the internal structure of the fluid blowing device. 1.1'...Fluid outlet, 2a, 2b...
...Left and right side walls, 4a, 4b...Control room, 5...
... Pressurized fluid chamber, 7 ... Main fluid passage, 12
......Electromagnetic coil, 13......Power supply, 15
...Mode selector switch, 16.16'...
...Slider, 19...Heat band relay.

Claims (1)

[Scope of utility model registration request] A pressurized fluid chamber 5, a plurality of fluid outlets 1, 1' each having a main fluid passage 7 communicating with the pressurized fluid chamber 5, and a control chamber 4a provided on the left and right side walls 2a, 2b of the main fluid passage 7. , 4b and
The control rooms 4a, 4b are arranged in the control rooms 4a, 4b.
An electromagnetic coil 12 with a flapper that opens and closes the flow passage inside the
Therefore, in a fluid blowing device in which the direction of the blowing flow is changed by turning on and off the electromagnetic coil 12, the electromagnetic coil 12 in the plurality of fluid blowing ports 1, 1' is
The sliders 16 and 16' of the mode changeover switch 15 are connected so as to interlock with each other, and the mode changeover switch 15 is connected to the power supply 13 via the heat band relay 19, and the heat band relay 19 is turned on. - A blowout flow switching device for a fluid blowout device, characterized in that a left and right oscillating flow is obtained from the fluid blowout ports 1 and 1' by an off operation.