JPH083873Y2 - controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Use The present invention relates to a controller for operating a control device or the like.

(B) Conventional technology Conventionally, for example, an automatic water heater has a circulation flow path in which an outdoor heat exchanger and a bathtub in a bathroom are connected and communicated with each other by a forward-side pipe and a return-side pipe provided with a circulation pump midway. In addition, the upstream side piping on the upstream side of the circulation pump, the hot water filling pipe that supplies the mixed hot and cold water for hot water filling is branched and interlocked via a three-way switching valve to form a hot water filling flow path, A controller controls operation of the water heater, hot water supply to the bathtub, temperature adjustment of the bathtub, and the like.

A controller for operating the control device is attached to a wall surface of a bathroom or the like, and is configured to instruct the control device from the bathroom or the like to perform each operation by operating the controller.

A pressing portion is provided on the operation panel surface of such a controller,
In the pressing portion, a cantilevered operation pressing plate (FIG. 8 (S)) cut out in a substantially U-shape is formed at a portion of the operation panel surface facing the switch display portion, and the operation panel surface is pressed. By pressing the section, the operation pressing plate is pressed, the operation button built in the controller is operated, and the signal is transmitted to the control section.

(C) Problems to be solved by the invention However, in the controller having the above structure, when the pressing portion of the operation panel surface is pressed to operate the control device, the operation pressing plate of the front casing tilts from the cantilever portion. Since the pressing part may abut the operation button of the control part inaccurately and the operation button may not be operated reliably, there is a disadvantage that the control device cannot be operated quickly and reliably. Was.

(D) Means for Solving Problems In the present invention, a seat on which an operation display is displayed and a front casing whose surface is covered with the seat form an operation panel surface, and a pressing portion is formed on the operation panel surface. In the controller provided, an operation pressing plate is provided on the front casing corresponding to the pressing portion, and a continuous notch groove is formed so as to surround the entire periphery of the operation pressing plate portion, and
The controller is characterized in that the notch groove is formed so as to be point-symmetric with respect to a center point of a central portion which is a connection remaining portion of the operation pressing plate portion.

(E) Operation / Effects In the present invention, for example, when using the automatic water heater, the controller of the automatic water heater is operated by operating the operation panel surface of the controller installed in the bathroom or the like. The pressing portion arranged on the board surface forms a notch groove on the entire circumference of the peripheral portion of the pressing plate portion of the front casing, leaving a part of the connecting portion at a point symmetrical position from the center of the pressing plate, thereby forming a long supporting portion. Since it is held, it can be pressed to a flat state regardless of which part of the pressing portion is pressed, and it can be accurately brought into contact with the operation button that sends a signal to the control device, and the controller can operate the control device reliably.

Therefore, according to the present invention, the operation pressing plate is pressed to a flat state, and the control device is reliably operated, so that the control device is incorporated, for example, operation of an automatic water heater, hot water supply to a bathtub, or It has an effect that the temperature can be adjusted surely.

(F) Examples Hereinafter, the present invention will be specifically described based on Examples shown in the accompanying drawings.

FIG. 1 shows a conceptual overall structure of an automatic water heater (A). In the figure, (10) is a water heater main body, which includes a heat exchanger (11) and a petroleum burner (12). ing.

The heat exchanger (11) has a water supply pipe (13) and a hot water supply pipe (14)
Water is supplied to the heat exchanger (11) through the water supply pipe (13), while the hot water supply pipe (1
Through 4), high temperature hot water will be fed to currants and showers.

Further, in FIG. 1, (15) is a heat exchanger (1
It is a forward side piping that is connected to 1) and the end is connected to the bathtub (16), and the three-way switching valve (17) and the circulation pump (18) are installed in the middle, while (19) is the start end. Is a return pipe which is connected to the bathtub (16) and the end of which is connected to the heat exchanger (12).

With such a configuration, the heat exchanger (11) → outward side pipe (15) → bathtub (16) → return side pipe (19) → heat exchanger (1
A circulation flow path (B) consisting of 1) can be formed, and by driving the circulation pump (18), the bathtub (16)
The bath water inside can be circulated in the circulation flow path (B), and the bath water can be continuously heated by the heat exchanger (11) to boil and keep warm.

Further, in FIG. 1, (20) is a hot water supply pipe (1
It is a hot water filling pipe branched from 4), and the end of the hot water filling pipe (20) is a mixing valve (21) and a solenoid valve (2
2), a ball tap (23), a cistern (24) and a water amount sensor (25), and is connected to the three-way switching valve (17).

With such a configuration, the three-way switching valve (17) is switched to connect the end of the hot water pipe (20) and the downstream side of the outward pipe (15), thereby the heat exchanger (11) → the mixing valve (21). → Solenoid valve (22) → Ball tap → (23)
→ cistern (24) → water amount sensor (25) → three-way switching valve (17) → outward side piping (15) → circulation pump (18) → bath (16) can form a hot water filling channel (C) it can.

Reference numeral (26) is a branch water supply pipe provided between the mixing valve (21) and the water supply pipe (13) for supplying water to the mixing valve (21).

With such a configuration, the three-way switching valve (17) is switched to connect the hot water pipe (20) to the upstream side of the outward pipe (15), and then the circulation pump (18) is driven. The high temperature hot water from is mixed with the water from the branch water supply pipe (26) by the mixing valve (21) to generate a mixed hot water having an appropriate temperature, and the mixed hot water is the hot water filling pipe (20), the three-way switching valve (17), Hot water is discharged into the bathtub (16) via the downstream side of the outward pipe (15) and the circulation pump (18).

Further, explaining other configurations in the illustrated embodiment, (27) is a lower limit float, which is used for securing a certain amount of mixed hot and cold water in the cistern (24) to prevent the occurrence of drawing noise and the like. Is.

On the other hand, (28) is an upper limit float, which originally adjusts the water level by the ball tap (23), but in the unlikely event that the ball tap (23) fails, it will prevent overflow from the systern (24). .

Further, (29) is a bath hot water temperature sensor provided in the return pipe (19) of the circulation flow passage (B), and measures the temperature of the bath hot water in the bath tub (16). On the other hand, (30) is the water heater body (1
The hot water supply temperature sensor arranged in the heat exchanger (11) of (0) measures the temperature of the hot water generated in the heat exchanger (11).

Further, in FIG. 1, (31) is a control device,
As shown in FIG. 1, the control device (31) includes a microprocessor (MPU) and input / output interfaces (32) (3
3) and a memory (34) including (ROM) and (RAM).

Further, in the above configuration, the input interface (32) includes the water amount sensor (25), the lower limit float (27) sensor, the upper limit float (28) sensor, the bath water temperature sensor (29) and the hot water supply temperature sensor (30). It is connected.

On the other hand, the output interface (33) has a three-way switching valve (17), a circulation pump (18), a mixing valve (21),
The fuel supply pump (SP) and the solenoid valve (22) are connected.

Further, the memory (34) includes the above-mentioned sensors (25) (2
7) Based on the output signals from (29) (30) and the drive signal from the controller (35) described later, the three-way switching valve (17), circulation pump (18), mixing valve (21) and solenoid valve A driving sequence program for driving (22) and the like is stored, and if there is an interrupt operation in the middle of the main routine, the operating condition or tapping condition immediately before that can be stored.

Next, a controller (35) for manually sending a drive output to the control device (31) will be described.

In FIG. 2, the controller (35) is installed on the side wall (C′-1) of the bathroom (C ′) to discharge hot water into the bathtub.
The control device (31) is instructed about the circulation operation and hot water discharge conditions for the currant and the shower.

Then, by operating the controller (35), a predetermined drive signal or control signal is sent to the control device (31), and based on the drive signal, the circulation pump (18),
The mixing valve (21), the solenoid valve (22), the oil burner (12) (including the fuel supply pump (SP)), etc. can be driven.

In this embodiment, on the back side of the operation panel surface (36) formed on the front surface of the controller (35), as shown in FIG. 3, an operation switch (37), a freeze prevention switch (38),
Hot water switch (39), boiling / heat retention switch (4
0), pusher switch (41), and hot water switch (4)
2) is provided with the display section.

By pressing the display portion of each of the above switches, it is possible to send a signal to the control device (31) for prevention of freezing, hot water filling operation, temperature adjustment of hot water, or the like.

Reference numeral (43) is a display lamp that is turned on when each switch is pressed.

Further, on the back side of the operation panel surface (36) of the controller (35), a display unit for the temperature control switch (44) of the bath water, a display unit for the amount setting switch of the hot water (46), and its temperature display unit (45),
A hot water display section (47) is provided.

Such a controller (35), as shown in FIG.
The board (49) with the operation buttons (48) of each switch for sending a signal to the control device (31) is built in the inside, and each is operated by the operation of the pressing part (56) arranged on the operation panel surface (36). It is configured to activate the button (48).

Further, the front casing (50) of the operation panel surface (36).
The sheet (51) is arranged in a superposed state with a part thereof adhered on the front surface of the operation button, and the operation button (48) is provided on the operation panel surface (36) with the sheet (51) not adhered to the pressing portion. (56)
Is configured to be operated via.

An operation display is appropriately printed and displayed on the sheet (51).

Therefore, the present invention is characterized by the shape of the front casing (50) of the pressing portion (56).
The detailed structure is as follows.

That is, as shown in FIGS. 6 and 7, at a predetermined position of the front casing (50), that is, at a position opposite to each switch display displayed on the front side of the operation panel surface (36),
A square operation pressing plate (52) is provided, and the pressing plate (5
2) The central point (52
The cutout groove (53) is formed by leaving a part of the connecting portions (52a) and (52b) at a position symmetrical with respect to c), and the operation pressing plate (52) and the connecting portions (52a) and (52b) are formed. The support portion (54) constitutes a pressing portion (56).

The notch groove (53) having such a structure has a structure as shown in FIG.

That is, a continuous cutout groove (53) is formed so as to surround the entire periphery of the operation pressing plate (52) portion, and the cutout groove (53) serves as a connection remaining portion of the operation pressing plate (52) portion. Is formed so as to be point-symmetric with respect to the center point of the central portion, and specifically, the operation pressing plate has two notched grooves (53) (53) each having a rectangular spiral shape. The operation pressing plate (52) is surrounded by the peripheral edge of the operation pressing plate (52) in a state of being symmetrically arranged with respect to the center point (52c) of the (52) in opposite directions.

As a result, the operation pressing plate (52) is the same as the operation pressing plate (52).
The support portions (54) (54), which are substantially L-shaped and are symmetrically connected to each other at their peripheral portions, are supported by the front casing (50) via the coupling portions (52a) (52b).

Moreover, the connecting portions (52a) and (52b) partially left in the notch groove (53) are located at the peripheral portions of the operation pressing plate (5).
Since it is located symmetrically with respect to the center point (52c) of 2), it is approximately L
The tip ends of the character-shaped supporting portions (54) (54), that is, the portion connected to the front casing (50) also assumes a point-symmetrical position, and the operation pressing plate (52) has the supporting portions (54) (54). By the elastic force of), when pressed, both ends are supported in a substantially flattened state, the pressing operation is performed, and the original state can be restored by releasing the pressing.

In addition, a protrusion (55) is provided on the back of the operation pressing plate (52) so that the tip of the protrusion (55) abuts the button portion (48a) of the operation button (48). Has been done.

With this structure, the pressing portion (5
6) Operation pressure plate (5) formed on the front casing (50)
2) is pressed by pressing the pressing part, and the pressing plate (5
The operation button (48) is pushed by the protrusion (55) of 2) and a control signal can be sent to the control device (31).

As described above, the operation pressing plate (52) is provided with a substantially L-shaped support portion provided at the peripheral portion of the operation pressing plate (52) so as to be in a point symmetrical position with respect to the center point (52c) thereof. (54) (54)
Since it is pressed in a flat state while being supported by, the button portion (48a) of the built-in operation button (48) can be accurately abutted and the button operation can be performed reliably.

Therefore, the operation pressing plate (52) reliably operates the operation button (48) to send an output signal to the control device (31) of the automatic water heater (A) to operate the control device (31). It can be carried out.

As another embodiment of the present invention, the operation pressing plate (52)
Can be formed in an annular shape, and the left and right support portions (54, 54) can be formed in a circular spiral shape along the pressing plate (52).

Further, the pressing portion structure of the present invention can be applied to various control devices and is not limited to the control device of the automatic water heater.

[Brief description of drawings]

FIG. 1 is an explanatory view of an automatic water heater equipped with the controller of the present invention, FIG. 2 is an explanatory view showing a mounting state of the controller, FIG. 3 is a front view of the controller, FIG. 4 is a sectional view of the same, and FIG. FIG. 6 is an enlarged cross-sectional view of a main part, FIG. 6 is a front view of a front casing of a controller, FIG. 7 is an enlarged front view of a pressing portion, and FIG. 8 is an explanatory view showing a conventional technique. (A): Automatic water heater (31): Control device (35): Controller (36): Control panel surface (50): Front casing (51): Seat (56): Pressing part (52): Operation pressing plate (52c ): Center point (53): Notch groove (54): Support part

Claims (1)

[Scope of utility model registration request] 1. A seat (51) on which an operation display is displayed and a front casing (50) whose surface is covered with the seat (51) form an operation panel surface (36), and the operation panel surface (36). ) In which the pressing portion (56) is provided, an operating pressing plate (52) is provided on the front casing (50) corresponding to the pressing portion (56), and the operating pressing plate (52) is provided.
A continuous notch groove (5
3) is formed, and the notch groove (53) is formed so as to be point-symmetric with respect to the central point (52c) of the central portion which is the connection remaining portion of the operation pressing plate (52). And the controller.