JPS5822834A - Adjust angle signal transmitting switch - Google Patents

Abstract

PURPOSE:To miniaturize the titled switch by a method wherein in case the angle of rotation of a damper for adjusting the amount of air blow from an air conditioner is detected by the switch, rotational angle signals for a lever shaft are generated in proportion to the conditions of contact between a small pole plate integrally formed with the lever shaft which is interal with the damper, and a plurality of contacts when the lever shafts is rotated. CONSTITUTION:The adjust angle signal transmitting switch 30 transmits to related machines and devices signals designating the angle of rotation of the lever shaft 17 to which the nozzle damper for adjusting the amount of air blow from the air conditioner is fixed. The switch 30 includes a fixing plate 11 provided with contacts 23 inserted into split grooves, respectively, which are provided on a part of the circumference thereof and a substantially semicircular pole plate 14 which is fixed to a boss 15 with screws 16 and whose rotating position is made visible at a position designated by a needle 19. Further, the small pole plate 14A which is capable of contacting with the adjoining two of the contacts 23 simultaneously is attached to the boss 15 at a position opposite the pole plate 14. With the above structure, an electric current of a predetermined magnitude is applied on the pole plate 14 through a lead wire Y so that the rotation angle signal for the lever shaft 17 is generated from each of the contacts coming into contact with the small pole plate 14A.

Description

[Detailed Description of the Invention] The present invention detects the rotation angle of a damper that adjusts the air volume of an air conditioner, sends a signal to other dampers, etc., and adjusts the adjustment angle to make the other dampers perform the same operation. This relates to the outgoing switch.

Conventionally, this type of switch has been used in various vehicles, but electronic ones use the control signal of a certain damper as the 11 position signal, so there may be an error from the actual rotation angle position of the damper. Mechanical devices also have drawbacks such as increased size of the device and inaccurate position detection.

The present invention was made in view of the above situation, and an object of the present invention is to provide an adjustable angle transmitting switch that can accurately detect the actual rotational angle position of a damper and can be miniaturized as a whole. .

An embodiment of the present invention will be described below with reference to the drawings (corresponding parts in each drawing are given the same reference numerals). 1st
In the figure, the switch device is a one-manufacturer switch device, and the base 2 has a number of relays 3G to 3G equal to the number of rooms to be controlled by the air conditioner (eight in this example), and a wiring board 4. is provided. As shown in FIG. 2, the relay 3 is detachably attached to a socket 5 fixed to the base 2. In addition, the wiring board 4 is provided with a common terminal [F] and individual terminals 1 to 2 as power supply terminals for exciting the relay 3, and two output terminals (N is the number of rooms). In this example, a) o11111 child 0. A, B, C, AB, Mu O, BO.

A Mu BO is provided.

Figure 3 shows the connection relationship. Each relay 3M to 3C has a movable contact that connects by switching one input contact to one of two output contacts. The relay 3B has 21 movable contacts, and the relay 3C has P movable contacts. The output contacts of the relays 3M to 3C at the front stage are connected to the input contacts at the rear stage, respectively. Although FIG. 3 further shows the connection of relays 8D and 31, the number of relays 3 only needs to be the same as the number of rooms to be controlled.

FIGS. 4 and 6 show an index switch 10 for driving a stepping motor that rotates a nozzle damper to a predetermined position to control the amount of air blown by the air conditioner. 11
is a fixing plate made of plastic or the like that is fixed to the bracket 12 with screws 1s, and part of its periphery is provided with grooves 11 at predetermined angular intervals (4 degrees in this embodiment). There is. Reference numeral 14 denotes a substantially circular-shaped electrode plate fixed to the boss 15 by riveting 16, and the two plates are arranged so as to form a substantially circular shape. Fixed plate 11 and boss 1! A lever shaft 1f, to which a nozzle damper (not shown) for adjusting air volume is fixed, is inserted through the hole provided approximately in the center of I.
The boss 1s is fixed to the lever shaft 1f by a screw tS, and the pointer 19 is fixed to the boss 11S by a screw 20, so that they can rotate together. 21 is screw 2! Yoshishi fixing plate 1
1 with a plastic or similar cover fixed to the
A horizontal scale is attached to its surface so that the rotational position of the internal electrode plate 14 can be visually checked depending on the position pointed by the pointer 19. 23 is pushed through the groove 11 at a predetermined position, and the band 2! is inserted through the rubber gasket No. 2! suppressed by S.
This is a contact made to come into contact with the electrode plate 14.

Each lead @O, M, B connected to contact 21.

MUs B, O, MU C+, BO, and MU Be are connected to output terminals having the same symbols shown in FIG. 3, respectively. Further, the lead wires labeled "open" and "close" are connected in the rotational direction of the motor so as to drive the nozzle damper in the opening direction (counterclockwise in FIG. 6) and closing direction (clockwise in FIG. 6), respectively. It is connected to a relay (not shown) that switches and controls.

Reference numeral 26 denotes an insulator provided at a position of approximately 1110 degrees with respect to the lever shaft 17 so as to divide the electrode plate 14 into two. When the lever shaft 17 is rotated to a position where the insulator 26 contacts the contact 23 to which the lead wire 0 is connected, the nozzle damper is completely closed. When the insulator 26 is in contact with the contact 23 to which the lead wire is connected,
When the lead wire B is 30%, when the lead wire C and MUB is sO%, when the lead wire MU C is 70%, when the lead wire BO is @O%, when the lead wire MU is 1 for BO
00% (of course, the opening degree and therefore the position of the contact point 23 are selected as appropriate depending on the capacity of the room to be controlled).

FIGS. 6 and 7 show the v
4!1 angle transmission switch 30 is shown, and its basic configuration is the same as the index switch 10 shown in FIGS. 4 and 5.

The difference from the index switch 10 is that there is only one approximately semicircular plate 14, and the plate 14 has a lead wire through which a predetermined current is applied! The small electrode plate 14 is always pressed into contact with the contact 23 connected to the lead wire 31, is inserted through the groove 11 without interruption, and is in contact with the contact 23 connected to the lead wire 31.
This is the point where it is connected to the system. As shown in FIG. 8, the small electrode plate 14 can be contacted simultaneously with two adjacent contacts 23.

In order to emit an adjustment angle signal using this adjustment angle transmission switch 30, in the one shown in the figure, the small electrode plate 14 is rotated with the rotation of the lever shaft 1f, and signals are sequentially sent to the contact 23. However, by bundling a plurality of lead wires connected to each contact 23, output signals can be sent out as fewer signals than the contacts 23. That is, the number can be the same as the number of contacts 23 of the index switch 10.

Next, I will explain its operation. When the operation switch for operating the air conditioner is not operated in any of rooms M to 0, relays 3 to 3C are not energized, so each movable contact is in the position shown in Figure 3. Therefore, the lead wire O is energized, and the index switch 10 is connected to the insulator 2.
The nozzle damper stops at the position where the nozzle 6 contacts the contact 23 connected to the lead wire 0, and at this time the nozzle damper is completely closed.

Now, for example, if the air conditioner operation switches are operated in all rooms M to C, all relays 3 to 3C are energized, all movable contacts are switched downward in FIG. Output is produced.

As a result, the left pole plate 14 of the index switch 10 is energized, the lead wire is output to "open", and the lever shaft 17 is moved to the S position.
The motor rotates in a counterclockwise direction in the figure. Therefore, the nozzle damper is driven in the direction of increasing the aperture. When the insulator 26 rotates at the position t where it contacts the contact connected to the lead wire 5 BC (the position shown in FIG. 6), the relay connected to the lead wire ``open'' is de-energized. The motor will stop at that position. Therefore, the nozzle damper connected to the lever shaft 17 is opened by 1G)%.

Next, if only room 0 or the air conditioner switch of rooms M and B is operated, only relay 3C or 3M and 8
Since relay B remains energized and relay 3M, 88 or 3G is de-energized, an output is output to lead wires G and 5B. Therefore, the relay connected to the lead wire "Closed" is energized via the right-hand plate 14 in FIG.

Therefore, the motor is rotated in a direction that closes the nozzle damper.

When the insulator 26 is rotated to a position where it contacts the contacts connected to the lead wires G and B, the relay connected to the lead wire "CLOSE" is de-energized and the motor is stopped. At this time, the nozzle damper has an opening degree of 50%. In addition, in this embodiment, the opening degree is 19% for the forest room, 30% for room B, and 30% for room cano%, so even if the operation switch for only room G is turned on, the opening degree for room M and B Connect lead wire B and lead # so that the opening degree is the same as when the operation switch is turned on.
C is connected to the same contact point 23.

As described above, when the lever shaft 1f rotates in the opening or closing direction,
The adjustment angle transmission switch 30 attached to the same lever shaft 17 also rotates in the same manner. Hence the lead wire! When the lever shaft 17 rotates in the closing direction, the predetermined current supplied to the lever shaft 17 is sequentially switched from lead wire A to lead wire A and output, and when the lever shaft 17 rotates in the opening direction, it is output from lead wire A to lead wire A. The output is sequentially switched in the direction of lead wire A. At this time, the width of the small electrode plate 14 is in contact with the two adjacent contacts 23 at the same time, so the output from lead wire I is not interrupted on the way. Therefore, this output current causes the motor that opens and closes the other nozzle dampers to rotate. The opening degree of the damper can be controlled.

By bundling an appropriate number of lead wires A to I, the time during which the output current flows is proportional to the rotation angle of the lever shaft 11, so that the opening degree of the other nozzle damper can be controlled by the lever shaft 11. The opening degree of the nozzle damper can be set to be different from the opening degree of the nozzle damper.

As described above, in the present invention, a small electrode plate is provided on the lever shaft that rotates in conjunction with the nozzle damper, a predetermined current is supplied to the small electrode plate, and when the small electrode plate rotates, it comes into contact with the small electrode plate sequentially. In this way, multiple contacts are provided at each predetermined angle, and the rotation angle signal of the lever shaft is outputted from these contacts, so the rotation angle of the lever shaft can be reliably detected and the device can be made more compact. It can be realized.

[Brief explanation of the drawing]

The openings are all related to the present invention; Fig. 1 is a perspective view of the switch device, Fig. 2 is a perspective view of the relay and socket, Fig. 3 is a connection diagram of the relay, and Fig. 4 is a longitudinal section of the index switch. 5 is a cross-sectional view of the Moom, FIG. 3mm, sn, sc, an, am...Relay, 10... Index switch, 11mm...
・・・・・・・・・Split groove, 14・・・・・・Pole plate,
14mm・・・・・・Small electrode plate, 23・・・・・・・・・
...Contact, 26...Insulator, 3 tons...
...Adjustment angle switch, 31...
Lead. Patent applicant: Danrei Kogyo Co., Ltd.

Claims (1)

[Claims] A small electrode plate is provided on a lever shaft that rotates in conjunction with a damper that sets the air flow rate of an air conditioner to a predetermined value, a predetermined current is supplied to the small electrode plate, and when the small electrode plate rotates, An adjustment angle transmitting switch characterized in that a plurality of contacts are provided at predetermined angles so as to make contact sequentially, and a rotation angle signal of the lever shaft is outputted from the contacts.