JPS6122003Y2 - - Google Patents

Description

[Detailed explanation of the idea]

The present invention relates to an air flow path shutter switching device that is capable of selectively opening each branch air flow path in seven different modes at a branch portion from a main air flow path to three branch air flow paths. It is. In a conventional indoor air circulation system installed for heating and cooling the interior of an automobile, etc., as shown in the side cross-sectional view of FIG. The air is selectively introduced into this device by the shutter 4, cooled by the tarler 2, or heated by the heater 3 by switching by the shutter 5, and then flows out from these main air passages 12 in three directions inside the vehicle interior. I'm starting to let them do it. Therefore, the air from the main air flow path 12 is
A branch air flow path 6 toward the face direction indicated by FA, a branch air flow channel 7 toward the foot direction indicated by arrow FO, and a branch air flow channel 8 toward the defroster indicated by arrow D.
Two shutters 9, 10 are provided for selectively switching to three types of modes in the direction, and these shutters 9, 10 are operated via wires (not shown). On the other hand, as a mode for selectively opening at least one of the three branch air channels 6, 7, 8, one of each of the branch air channels 6, 7, 8 may be opened.
3 types of modes: open some and close others,
There are three modes in which two of each can be opened by fixing shutters 9 or 10 in an intermediate position and the other one can be closed, and all can be opened by fixing shutters 9 and 10 in an intermediate position. There are a total of seven modes: face, foot, defroster, face and foot, foot and defroster, face and defroster, and face, foot, and defroster. With this type, it is not possible to select from 7 different modes. That is, when attempting to connect the mode selection lever and the shutters 9 and 10 with links, wires, cams, etc. in order to mechanically configure the operation means that can select the seven modes, the combination of these This becomes complicated, and furthermore, the distance between the positions of the mode selection lever corresponding to each mode needs to be 50 mm or more. Therefore, in order to select seven modes, a total moving distance of 350 mm is required, which poses a problem that it cannot be mounted on an instrument panel. Therefore, it is conceivable to use a motor as an actuator for the shutter and to select a mode using a push button changeover switch. This can be easily achieved by setting it to 1 button 1 mode, but this results in 7 buttons being lined up on the panel,
It is unsuitable for something like a car, which is operated by an unspecified person or operated by a driver while driving, as it is too complex. Therefore, the present invention was devised to solve the above-mentioned conventional problems, and by making the above-mentioned seven modes selectively operable with three push buttons, the shutter switching operation of the air flow path is improved. The purpose is to make it easier. That is, the configuration of the air flow path shutter switching device of the present invention is such that the main air flow path is branched into two, one flow path is further branched into two, and a motor-driven shutter is installed at each branch point. The motor is provided with a changeover switch circuit driven by a combination of three push buttons, and the shutter is configured to close one flow path and close the other flow path by the combination of the push buttons. This feature is characterized in that the flow path is switched by performing three actions: one for closing the flow path, and the other for holding the intermediate position. Embodiments of the present invention will be described below with reference to the drawings. First, the embodiment of the present invention shown in FIG. 2 is applied to an indoor air circulation system for an automobile that has the same configuration as the conventional example shown in FIG. It has the function of
Identical parts are indicated by the same part number, and three branch air flow paths 6 (in the face direction shown by the arrow FA), 7 (in the foot direction shown by the arrow FO), and 8 (in the foot direction shown by the arrow D) from the main air flow path 12. Two shutters 9 and 10 that can be selectively switched to the aforementioned seven types of modes that open at least one or more branched air flow paths 6, 7, and 8 are disposed at the branch portion toward the defroster direction). It is set up. That is, the shutter 9 can be fixed at each position of points A, C, and D using the point 9a as the hinge point, and the shutter 10 can be fixed at the points A', A', and D using the point 10a as the hinge point.
By being able to fix the shutters at C' and D' positions, the seven modes described above become possible, and these shutters 9 and 10 are operated by motors _M1 and _M2 , respectively, as shown in FIG. The power supply for these motors M ₁ and M ₂ is +B.
The battery shown as (24V) is connected. Further, these motors M ₁ and M ₂ are provided with contact plates P ₁ and P ₂ that rotate together, respectively, and these contact plates
P ₁ and P ₂ are each provided with a notch Q, and terminals A, D, C and A',
The motors M ₁ and M ₂ are designed to stop when each connection point of D' and C' is reached. Next, FA, FO, and D in Figure 3 indicate the fourth
These are push buttons indicated by FA, FO, and D in the figure. If push button FA is pushed, the branch air flow path 6 toward the face is opened, and when push button FO is pushed, the branch air flow path 7 is opened toward the foot direction. Open the air flow path 8 and press push button D again to open the branch air flow path 8 toward the defroster.
is starting to open. Furthermore, Fig. 3 shows the above three push buttons FA,
Operated by FO, D, and two motors
A switch consisting of switches enclosed by dotted lines is used to fix shutters 9 and 10 in appropriate positions by controlling M ₁ and M ₂ according to seven types of modes using contact plates P ₁ and P ₂ . A circuit is installed. That is, the above switch circuit consists of S ₁ , S _2-1 , S _2-2 , S _3-1 , and S _3-2 that control the motor M ₁ and is operated by push buttons FA, FO, and D. group switch and S ₄ that controls motor M ₂ ,
Consisting of S ₅ , S _6-1 , S _6-2 , and push button
It consists of three groups of switches operated by FA, FO, and D, each of which can be linked and switched. In addition, in Fig. 3, all the above switches S ₁
to S _6-2 are turned off. Therefore, in the switch circuit shown in Fig. 3,
When pushbutton FA is pressed to ON, switch _S1
circuit is inserted, and motor _M1 is connected to terminal AE via contact plate _P1 as shown in Figure 5.
As shown in FIG. 6, motor _M2 is connected to terminals A' and E _' via contact plate P2. At that time, the shutter 9 in FIG. 2 is fixed at the position of point A, and the shutter 10 is fixed at the position of point A', so that the air exits in the direction of the arrow FA, that is, in the direction of the face. Also, when pushbutton D is pressed, the motor _M1 side in the switch circuit is connected to terminal ED, and the motor _M2 side is connected to terminal ED.
E′D′ respectively, and the shutter 9 in FIG.
is fixed at the position of point D, and the shutter 10 is fixed at a position other than point D', with air coming out in the direction of the defroster indicated by arrow D. Next, press both push buttons FA and FO,
In the switch circuit, the motor _M1 side is connected to terminal EC, the motor _M2 side is connected to terminal A'E', and the second
Shutter 9 in the figure is point C, and shutter 10 is point C.
At position A', air comes out in the face direction of arrow FA and the foot direction of arrow FO. Similarly to the above, each shutter 9, 10 is placed in the fixed position determined in each of the seven modes.
are being fixed accordingly. Note that the push buttons FA, FO, and D shown in FIG. 4 are designed to return to the off state by pressing them again in the on state. Here, in the seven types of modes No. 1 to 7 shown in the first column of the table below, press the push button in the second column.
The terminal number of the position where motor _M1 stops when FA, FO, or D is pressed (that is, turned on) is listed in the third column, and the switch circuit at that time is listed in the fourth column. It is shown in each drawing. Furthermore, the terminal number at the stop position of the motor _M2 in that state is listed in the fifth column, and the switch circuit at that time is shown in the drawing in the sixth column. In addition, in the seventh row, the shutter 9 is located at the fixed position A,
C and D are shown, and the fixed position of shutter 1 is shown in the 8th column.
A′, C′, and D′ are shown.

[Table] That is, each drawing shown in the 4th column of the above table, the 7th column,
A motor that operates to fix the shutter 9 in figures 9, 11, 13, 15, 17, and 19 in an appropriate position.
The switch circuits of _M1 are connected as shown by the thick lines in the figure, and the position of the contact plate _P1 at that time is also as shown in the figure. In addition, each drawing shown in the 6th column of the above table, the 8th,
10, 12, 14, 16, 18, and 20 The switch circuits of the motor _M2 that operate to fix the shutter 10 in an appropriate position are connected as shown by the thick lines in the diagrams, and the contact plate P at that time The position of ₂ is also as shown in the diagram. In addition, when all pushbuttons FA, FO, and D are off, the switch circuit that controls motor _M1 is in the state shown in Figure 21, and the switch circuit that controls motor _M2 is in the state shown in Figure 22. . Therefore, if the air flow path shutter switching device of the present invention is applied, there are seven modes for selectively opening at least one of the three branch air flow paths branching from the main air flow path. The mechanism of the shutter switching device is relatively simple, and the shutter switching operation can be easily performed. That is, if the present invention is applied to an air circulation system for an indoor gambling machine such as a car, it will be possible to easily and reliably switch the air flowing in three directions, ie, the face direction, the foot direction, and the defrotter direction, among seven different modes. It has the advantage of being able to go to

[Brief explanation of the drawing]

FIG. 1 is a schematic side sectional view of a conventional automobile indoor air circulation system, and FIG. 2 is a schematic side sectional view of the main part of an automobile indoor air circulation system according to an embodiment of the present invention.
Figure 3 is an overall circuit diagram showing the switch circuit for operating the shutter in Figure 2, Figure 4 is an enlarged plan view of the main parts of the push button in Figure 3, and Figure 5 is one of the motors and The main part connection diagram of the contact plate, Fig. 6 is the main part connection diagram of the motor and contact plate of the other side of Fig. 3, and Fig. 7
From the figure to Figure 20, the main part circuit diagram of the switch circuit in each mode in Figure 2, Figure 21 and Figure 2 are shown.
FIG. 2 is a circuit diagram of the main part of the switch circuit in a state in which all the push buttons are turned off in FIG. 6, 7, 8... Branch air flow path, 9, 10... Shutter, 12... Main air flow path, FA, FO, D...
Push button, M ₁ , M ₂ ... Motor, P ₁ , P ₂ ... Contact plate, S ₁ , S _2-1 , S _2-2 , S _3-1 , S _3-2 ... Switch, S ₄ , S ₅ , S _6-1 , S _6-2 ... switch.

Claims (1)

[Scope of utility model registration request] The main air flow path is branched into two, and one flow path is further branched into two, and each branch point is provided with a motor-driven shutter, and the motor is operated by a combination of three push buttons. A driven changeover switch circuit is provided, and the shutter can operate to close one flow path, close the other flow path, and maintain an intermediate position by a combination of the push buttons. A shutter switching device for an air flow path, characterized in that the air flow path is switched by performing an operation.