JP2653159B2 - Electric valve device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor-operated valve device for electrically controlling the supply of hot water or water.

2. Description of the Related Art Conventionally, there has been an electric valve device of this type as shown in FIG. In FIG. 4, the fluid entering from the inlet 2 provided in the valve frame 1 is switched to the outlet 4 or the outlet 5 by the rotation of the ball 3 in FIG. . The ball 3 is driven by an output shaft 10 of a motor 9 via a valve shaft 6, a connecting member 7, and a clutch 8. The position of the motor 9 is controlled by the micro switch 11, and the motor 9, the micro switch 11, etc.
The periphery is covered with a metal protective case 12. Protective case
A cable 13 to 12 has been introduced and the cable 13 is sealed by a fastening means 14. A hole 15 communicating with the outside air is provided in a lower portion of the protective case 12. Protective case 12
And the valve frame 1 are fixed with screws via a mounting plate.

Problems to be Solved by the Invention However, since the conventional motor-operated valve device is configured as described above, it has the following disadvantages.

(1) Since the motor-operated valve device has no fixing means, the pipes connected to the inlet 2 and the outlets 4 and 5 may be loosened due to movement or load when an external force is applied. . Further, when this motor-operated valve device is used in a high-humidity atmosphere, moisture enters through the hole 15 and the life of the motor 9 and the microswitch 11 is extremely shortened.

(2) The protective case 12 has no protective means for preventing the plumbing tool from being damaged by hitting.
Need to be a sturdy case made of metal,
There was a disadvantage that electric leakage was easily caused.

(3) Since the ends of the outlets 4 and 5 are located inside the ends of the protective case 12, the protective case 12 is obstructed when the pipe wrench or the monkey wrench is rotated to perform the work, making the work difficult.

An object of the present invention is to solve the conventional problems as described above, and an object of the present invention is to provide a motor-operated valve device which is excellent in workability and can prevent damage to a protective case.

Means for Solving the Problems In order to achieve the above object, a motor-operated valve device according to the present invention comprises:
A mounting plate is fixedly provided on the back surface of the valve or the protection case, a through portion of an electric wire for supplying electric drive means for driving the valve is provided in the protection case, and a sealing material is provided around the through portion of the mounting plate. And fixing means for fixing the device to a wall or the like.

Further, a connecting tube whose outer end is located outside the outer end of the protective case in the direction from the valve to the protective case is provided, and the connecting tube is provided with a fastening means with another pipe at the outer end thereof. is there.

Further, a mounting plate is provided on the back surface of the protection case, a valve connection tube is provided on the upper and lower portions, and a cover of the protection case is configured to be detachable from the front.

Effect By the above configuration, by fixing the mounting plate attached to the back of the protective case or the valve to a wall or the like, a load is not applied to the piping, and the sealing material provided around the wire penetration portion at the time of fixing is fixed to the wall or the like. By being pressed, even when used in an environment where moisture or water scatters, moisture or water can be prevented from entering the inside of the protective case or the building.

In addition, since the connecting cylinder extends from the valve in the direction of the protective case, and the outer end thereof is located outside the outer end of the protective case, protection of the protective case by the connecting cylinder and simplification of construction can be achieved.

Furthermore, since the protective case has a mounting plate on the back surface and connection cylinders are provided on the upper and lower parts, the protective case is sufficiently protected, and maintenance of the internal electric drive means and the like is performed by attaching and detaching the lid from the front. Inspection is easy.

Embodiment Next, an embodiment of a motor-operated valve device according to the present invention will be described with reference to FIGS.

In FIG. 1, an apron 17 which is a concealing part in a bathroom 16 is shown.
The electronic mixing valve main body 18 is housed therein. The electronic mixing valve body 18 mixes hot water and water and adjusts the flow rate,
A valve 19 for switching, motors 20, 21, and 22 for driving the same, and a resin sealed box 23 serving as a protective case provided for isolating these motors from the atmosphere in the bathroom, and the atmosphere outside the bathroom. It is composed of a ventilation pipe 24 and the like communicating with the inside of the closed box 23. Further, a main remote controller 25, a bathtub remote controller 26, and a kitchen remote controller 27 also serving as a power source provided in a kitchen or the like are provided as setting devices, and these setting devices communicate with a controller 28 provided in a closed box 23 and a communication device. It is connected via an electric wire 27 ′ passing through the trachea 24. The control signal is also communicated with a water heater 29 and an electric drain plug 30.

The mixed hot water whose temperature has been adjusted by the electronic mixing valve body 18 is discharged from the washing area
31, or from the bathtub outlet 32, the fixed shower 33, and the hand shower 34, alternatively or simultaneously.

FIG. 2 shows details mainly of the appearance of the electronic mixing valve main body 18. The valve 19 includes a hot water connection cylinder 35 and a threaded portion that extends from the valve 19 side in the direction of the closed box 23 and has an outer end outside the outer end of the closed box 23 and fastened to another pipe. Water connection cylinder 36
have. Also, a washing place connecting tube 37 for sending out mixed hot water, a bathtub connecting tube 38, a fixed shower connecting tube 39,
A hand shower connection cylinder 40 having a threaded portion that passes through the upper part of the closed box and whose outer end is located outside the outer end of the closed box 23 and is connected to another pipe is provided. Water connection cylinder 36 is valve 19
The hand shower connection tube 40 is fixed by screwing a flange portion to the base portion with screws. The hand shower connection cylinder can be installed 180 degrees opposite by shifting the stop hole of the flange. A high cut valve 41 is provided on the path leading to the hand shower connection port 40, which closes the path at a predetermined mixed hot water temperature (for example, 55 ° C.) or more, and prevents hot water from being supplied to the shower in the event of a failure. Have been. Further, at the lower part of the valve 19, water drainage stoppers 42, 43, 44, 45 for preventing the freezing and for draining the water inside the valve 19 at the time of maintenance are provided. The closed box 23 includes a base 46 fixed to the valve 19 in a water-tight manner, and a cover 47 cut into a rectangular parallelepiped, which is fixed to the base 46 via a packing. In addition, closed box 23
Is connected via a connecting pipe 48 to a sensor box 49, which is also sealed.

The valve 19 is fixed to the mounting plate 52 with screws 53 or the like on the rear rigs 50, 51 or the like. A part of the base 46 is also fixed to the mounting plate 52. The mounting plate 52 is compressed by screws 54, 55, 56, 57 and the like in a direction in which the sealing member 58 is pressed, and is fixed to the bathroom wall. The ventilation pipe 24 penetrates the wall of the bathroom through the mounting plate 52 and communicates with the back of the bathroom wall.
A rubber cap 59 is placed over the ventilation tube 24 at the back of the wall, and its opening faces downward. this is,
When dew condensation occurs on the back of the wall, the dew condensation water is dripped, and is installed for the purpose of preventing water from entering the closed box 23 from the ventilation pipe 24.

FIG. 2C shows a state in which the cover 47 is removed, and shows a state in which the motors 20, 21, and 22 are housed in the closed box 23.

FIG. 3 shows a cross section of the valve 19 and the closed box 23. In the valve 19, a pressure balance valve 60 for equalizing the pressure of hot water and water, a mixing valve 61 for mixing hot water and water, and a mixed hot water A thermistor 62 for detecting a temperature, a flow sensor 63 for detecting a flow rate, a flow regulating water shutoff switching valve 64 for controlling a flow rate, stopping water, and switching a path are provided. In addition, the motor 2 is
0, 22 and position detectors 65 and 66, a controller 28 equipped with a microcomputer, a connector 67 and the like are provided. After removing the cover 47 and removing the controller 28, the mixing valve 61, the flow regulating water switching valve 64, and the like are pulled out in the lateral direction together with the motor.
In the sensor box 49 described above, the electrical components of the thermistor 62 and the flow sensor 63 are contained.
Has been signaled.

 Next, the operation of this embodiment will be described.

The installation of the electronic mixing valve body 18 is performed as follows. Remove the apron in bathroom 16 and make a through hole in the wall.

Next, the electric wires 27 ′ and the like previously drawn into the back of the bathroom wall are pulled out from the holes, and the electric wires 2 ′ are inserted into the terminal block provided inside the ventilation pipe 24.
7 'and so on. The terminal block is protected by the cap 59, the mounting plate 52 is pressed against the wall of the bathroom 16, and the ventilation pipe 24 is inserted into the through hole. Screws 54, 55, 56, 57 are screwed into the bathroom wall to fix the electronic mixer tap main body 18. Then, hot water connection cylinder 35
The water pipe is connected to the water connection pipe 56. At this time, in particular, since the screw portion provided at the outer end of the water connection cylinder 36 is located outside the outer end of the closed box 23, a tool can be easily used.

Next, pipes to respective discharge ports are connected to the washing water connection tube 37, the bathtub connection tube 38, the fixed shower connection tube 39, and the hand shower connection tube 40. The construction of the hand shower connection tube 40 can be facilitated for the same reason as the water connection tube 36.

At the time of storage before construction, at the construction site, even if the electronic mixer tap main body 18 is stored in a case such as corrugated cardboard, heavy objects may fall off or hit by tools, and force may be applied to the internal body. Many. A sealed box especially made of resin
23 is weaker than the metal valve 19 and may be damaged, but a metal mounting plate is provided on the back of the closed box 23, and a water connection pipe 36 and a hand shower connection pipe 40 are provided above and below. Therefore, three directions can be protected by these. For the front surface, only one protective plate needs to be put in the storage case, and the other three surfaces need not be protected. In addition, the hand shower connection tube 40 also functions as a handle when being carried on site, and can be easily transported with one hand by grasping and holding it.

When performing maintenance and inspection after long-term use, by opening the apron 17 and removing the screws fixing the cover 47, maintenance and inspection of the motors 20, 21, 22 and the controller 28 can be easily performed from the front, After removing the controller, the valve cartridge also exits laterally with the motor.

In addition, when the bathroom is used, the interior of the bathroom 16 becomes high humidity and splashes of hot water or water are considerable.However, the motors 20, 21, 22 and the controller 28 are shut off from the atmosphere in the bathroom 16, and the air behind the wall is removed. And is communicated via the ventilation pipe 24, so that it is not broken by moisture or water. Since the sealing material 58 is provided around the ventilation pipe 24, moisture and moisture in the bathroom 16 penetrate to the back side of the wall and adversely affect the electrical components in the closed box 23 through the building and the ventilation pipe 24. Not even. In the unlikely event that a leak occurs in the electrical component, the electrical component box 23 is made of resin, and the first
It is safe because it is grounded and controlled at low voltage as shown in the figure.

The outside part of the valve 19 through which the hot water passes becomes quite hot, but the mounting plate
By forming the 52 from a metal plate such as stainless steel, it is possible to prevent the wall surface of the resin-made bathroom 16 from being softened because the low-temperature portion on the water side is averaged and the buffer is provided by the sealing material 58.

In this embodiment, an electric wire 27 ′ is provided inside the ventilation pipe 24.
However, it is possible to easily provide a separate connection portion such as the ventilation pipe 24 and the electric wire 27 ′.

Further, the reason why the water connection pipe 36 and the hand shower connection pipe 40 are botherged horizontally is to be added that the water connection pipe 36 and the hand shower connection pipe 40 are particularly effective under installation conditions where the height direction is restricted, such as the apron 17.

Effects of the Invention As described above, the following effects can be obtained according to the motor-operated valve device of the present invention.

(1) A mounting plate is provided on the back of the valve and the protective case, and the mounting plate is fixed to the wall surface, and a sealing material is provided around the electric wire through hole. Without applying a load to the wall, it is possible to prevent loosening after mounting, and to prevent moisture and moisture from entering the back of the wall only by fixing the mounting plate. Further, since the valve body does not directly touch the wall, deterioration of the wall material due to high or low temperature can be reduced.

(2) It has a connecting tube extending from the valve in the direction of the protective case, and the outer end of the connecting tube is outside the outer end of the protective case, and fastening with other piping is performed at the outer end of the connecting tube. Therefore, the protective case can be protected by the connection cylinder, resin can be used to reduce the weight of the protective case, and construction can be facilitated by using a tool outside the protective case.

(3) Since the protective case has a mounting plate on the back surface, a connection tube on the upper and lower parts, and a lid that can be attached and detached from the front surface, the protective case is protected on three surfaces and the front surface without the protective portion is provided. By attaching and detaching the lid, maintenance and inspection of the internal electric driving means can be easily performed.

[Brief description of the drawings]

FIG. 1 is a diagram of a hot water supply system using a motor-operated valve device in one embodiment of the present invention, FIG. 2 (a) is a front view of a main part of the device, FIG. 2 (b) is a bottom view thereof, and FIG. FIG. 3 is a cross-sectional view of a main part of the device, FIG. 4 (a) is a front view of a partially cut-away view of a conventional electric valve device, and FIG. FIG. 19 …… Valve, 20,21,22 …… Motor (electric drive means), 23
... Sealed box (protective case), 24 ... vent pipe, 27 '... electric wire, 36 ... water connection pipe (connection pipe), 40 ... hand shower connection pipe (connection pipe).

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Koji Mihara 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-2-229977 (JP, A) 52377 (JP, U) Japanese Utility Model 2-93579 (JP, U) Japanese Utility Model 1-178288 (JP, U)

Claims (3)

(57) [Claims] A valve, an electric driving means for driving the valve, a protection case for the electric driving means, a mounting plate provided on the protection case and a back surface of the valve; Fixing means for fixing to the protective case, an electric wire for supplying power to the electric drive means penetrating the mounting plate, a sealing material provided around the electric wire penetrating portion on the back surface of the mounting plate, A motor-operated valve device comprising: mounting and fixing means for fixing a plate to a wall or the like. 2. A valve, an electric driving means for driving the valve, a protective case of the electric driving means, and an outer end extending from the valve in the direction of the protective case, the outer end of the protective case being larger than the outer end of the protective case. A motor-operated valve device comprising: a connecting cylinder of the valve having an outer side; and connecting means for connecting another pipe at an outer end of the connecting cylinder. 3. A valve, an electric driving means for driving the valve, a protection case for the electric driving means, a mounting plate provided on the back of the valve and the protection case, and an upper part of the protection case. A motor-operated valve device comprising: a connection tube for the valve provided at a lower portion; and a lid that can be attached and detached from the front of the protection case.