JP2950046B2 - Hot water mixing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot and cold water mixing apparatus having an electrically waterproof structure for adjusting a mixing ratio of hot water and water to obtain an optimum mixed hot water temperature.

[0002]

2. Description of the Related Art A conventional hot and cold water mixing apparatus is configured as shown in FIG. In FIG. 6, a hot water side valve element 10 and a water side valve element 11 are mounted on a shaft 12 inside a valve housing 9 having a hot water inlet 2, a water inlet 1, and a mixed hot water outlet 8. Is driven by a motor 29 via a linear motion conversion mechanism 27 and a gear 28 provided in the motor. A temperature detector 13 for detecting the temperature of the mixed hot water is provided near the outlet 8 of the mixed hot water, and the controller 18 compares the temperature set by the setter 19 with the temperature detected by the temperature detector 13, Control. Further, a faucet 31 is provided at the terminal via the pipe 30. Then, when the faucet 31 is opened and the temperature of the mixed hot water is set by the setting device 19, the controller 18 sets the value of the temperature detector 13 and the set value of the mixed hot water temperature as signal values, and removes the motor 29 so as to eliminate the temperature deviation therebetween. Is drive-controlled.

[0003]

The configuration of the above-described conventional hot water mixing apparatus has the following problems. Valve housing 9 like motor 29 or temperature detector 13
The electrical components that are fixed to the unit are not waterproofed, and not only are the installation locations limited, but even when a waterproof structure is used, since the individual electrical components are in different directions and positions, all the electrical components are individually A waterproof structure had to be provided, and the individual electrical components were complicated, and the shape was large, so that the installation place was limited. In addition, there is no means for stopping the tapping when hot tapping occurs at the time of abnormality, and there is a danger of scalding when the hot tap water is applied to the body. In addition, even when a plurality of water outlets are required and a water outlet that requires high-temperature hot water supply or a water outlet that prevents high-temperature hot water supply is required, an abnormally high temperature detection means must be provided for each water outlet that wants to prevent high temperature. It is complicated and big.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its first object to provide a safe and highly versatile installation of a hot and cold water mixing apparatus without fear of water being applied to an electrical component. is there.

A second object of the present invention is to provide a water mixing apparatus which has a plurality of water outlets and can arbitrarily select a water outlet for preventing high-temperature tapping in the event of an abnormality.

[0006]

SUMMARY OF THE INVENTION In order to achieve the first object, the present invention provides a hot water inflow passage, a valve housing having a water inflow passage and a flat portion, and a valve housing having a hot water inflow passage and a water inflow passage. A mixing valve for adjusting the flow rate and the temperature, a mixing valve driving device for electrically driving the mixing valve, a temperature detector provided downstream of the mixing valve for detecting the temperature of the mixing water, A flow control valve for adjusting a flow rate, a flow control valve driving device for electrically driving the flow control valve, an abnormal high temperature detecting device for detecting an abnormal high temperature of the mixed hot water, the temperature detector and the abnormal high temperature detecting device A controller for controlling the mixing valve driving device and the flow rate regulating valve driving device by the signal of, and comprises one waterproof case, the mixing valve driving device and the temperature detector, which are all electrical components. The flow control valve driving device and the abnormally high temperature detecting device. Was attached to the flat portion, the temperature detector is fixed at the same time by the mounting of the flow control valve driving apparatus is configured so as to waterproof the flat portion when the waterproof case.

In order to achieve the second object, a valve housing having a hot water inflow path, a water inflow path, and an outflow path, and a flow rate from the hot water inflow path and the water inflow path are adjusted to control the temperature. A mixing valve unit comprising a mixing valve, a mixing valve driving device for driving the mixing valve, and a temperature detector provided downstream of the mixing valve for detecting the temperature of the mixing water, and detecting an abnormally high temperature of the mixing water. An abnormally high temperature detecting device, a connecting pipe unit including a connecting pipe, a switching valve having one inlet and two outlets, and switching a flow path of the mixed hot water to one of the two outlets, and a switching valve housing. A switching valve unit comprising: a connection valve having an inlet-side connection portion having the same shape as an inlet-side connection portion of the switching valve housing; and an outlet-side connection portion of the connection pipe and an outlet of the switching valve housing. Connect the side connection to the outflow path of the valve housing The same shape as, and is all the connection portions as a configuration arranged on the same straight line.

[0008]

According to the first aspect of the present invention, all the electrical components are covered by a single simple waterproof case, and the area covered by the waterproof case is also reduced by the area for fixing the temperature detector. Is also unnecessary.

Further, according to the second configuration, the connection between the mixing valve unit, the connection pipe unit and the switching valve unit can be arbitrarily selected.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2, a valve housing 21 provided with a water inflow channel 1, a hot water inflow channel 2 and an outflow channel 20 is provided with water guided from the water inflow channel 1 and from the hot water inflow channel 2. A mixing valve 3 that adjusts the flow rate of the hot water to change the temperature, a mixing valve driving device 14 that drives the mixing valve 3, and a temperature of the hot water mixed by the mixing valve 3 downstream of the mixing valve 3. Temperature detector 13 and flow control valve 4 for changing the flow rate of hot water (hereinafter referred to as flow control valve)
And a flow control valve driving device 15 (hereinafter, referred to as a flow control valve driving device) for driving the flow control valve 4, and an outflow passage 20 downstream of the flow control valve 4 is provided with a washing outlet 6 or a shower outlet 7.
, An abnormally high temperature detecting device 17 for detecting that an abnormally high temperature flows, and a switching valve driving device 16 for driving the switching valve 5 are fixed.

A flat portion 22 is provided from the water inflow path side of the valve housing 21 to the shower water discharge port 7 side.
The flow control valve driving device 15, the temperature detector 13, the abnormally high temperature detecting device 17, and the switching valve driving device 16 are fixed to the flat portion 22. All the components fixed to the flat portion 22 are waterproof. The case 23 is covered and waterproofed.

At this time, the temperature detector 13 is formed in an L-shape, is fixed by pressing the L-shaped corner portion at a fixed portion of the flow regulating valve driving device 15 and is hidden by the flow regulating valve driving device 15. It has become. The abnormally high temperature detecting device 17 also has an L-shaped shape like the temperature detector 13 and is fixed by the switching valve driving device 16. Reference numeral 18 denotes a controller that operates each of the valve driving devices 14, 15, and 16 based on signals from the setting device 19, the temperature detector 13, and the abnormal temperature detecting device 17.

With the above configuration, all the electric components, that is, the mixing valve driving device 14, the flow regulating valve driving device 15, the temperature detector 13, the abnormally high temperature detecting device 17, and the switching valve driving device 16
Can be arranged in one direction and on the same plane on the plane part 22, can be waterproofed by one waterproof case 23 having a simple waterproof structure on a single plane, and can have high humidity like the inside of a bathroom. It can be installed even in an atmosphere. Further, the area where the flat portion 22 of the valve housing 21 is covered by the waterproof case 23 is substantially the same as the mounting area of the mixing valve driving device 14, the flow regulating valve driving device 15, and the switching valve driving device 16, and the temperature detector A portion corresponding to the mounting area of the abnormal temperature detecting device 13 and the abnormally high temperature detecting device 17 becomes unnecessary. As a result, the size of the waterproof case 23 covering the electrical components is reduced, the overall size is reduced, and restrictions on the size of the installation portion are reduced.

In the embodiment shown in FIG. 3, a mixing valve 3, a mixing valve driving device 14, a mixing valve 3 and a mixing valve 3 are provided in a valve housing 21 provided with a water inflow path 1, a hot water inflow path 2, and an outflow path 20. , A mixing / flow regulating unit 24 provided with a temperature detector 13, a flow regulating valve 4, and a flow regulating valve driving device 15, and an abnormally high temperature detecting device 17 downstream of the mixing / flow regulating unit 24. Pipe unit 25 provided with a valve, switching valve 5 and switching valve driving device 16
Is connected to the switching valve unit 26 provided.

Outflow channel 2 in mixing / flow control unit 24
The shape of the connection portion of No. 0 is the same as the shape of the connection portion on the outlet side of the connection pipe unit 25 and the switching valve unit 26. In addition, when the connecting pipe unit 25 and the switching valve unit 26 are formed in the same shape on the inlet side, each having the same shape, and connected in a shape corresponding to the connecting portion of the outflow passage 20 in the mixing / flow regulating unit 24. All connecting portions are arranged on the same straight line.

With the above configuration, the mixing / flow control unit 24
Is connected downstream of the connection pipe unit 25 and the switching valve unit 26 in this order, so that hot water can be prevented from being discharged from all the water outlets switched by the switching valve unit 26.

As shown in FIG. 4, by connecting the switching valve unit 26 and the connecting pipe unit 25 in this order downstream of the mixing / flow control unit 24, only the shower water outlet 7 switched by the switching valve unit 26 is provided. It is possible to prevent hot water from flowing out, and hot water can be discharged from the washing outlet 6 as needed.

Although one switching valve unit 26 is used in this embodiment, a plurality of switching valve units 26 are used.
Can be connected in a superposed manner, so that when using a plurality of units, as shown in FIG. 5, by changing the connecting position of the switching valve unit 26 and the connecting pipe unit 25 arbitrarily, there are various variations in the hot water tapping method. It is possible to make it.

[0020]

As is clear from the above embodiment, according to the hot and cold water mixing apparatus of the present invention, since all the electrical components are formed on the same surface, a waterproof configuration can be achieved with only one waterproof case, It is not necessary to connect a plurality of waterproof cases for signal line connection, so that installation and reliability are further improved. Moreover, since they are on the same plane, the waterproof case and the seal structure can be simplified, and the reliability is improved. In addition, since each temperature detector is fixed by an electric drive, there is no need for space for fixing the temperature detector other than the mounting space for the electric drive, so the area covered by the waterproof case is small and waterproof. The case can be made more compact, which improves installation.

According to the hot water mixing apparatus of the second invention, the mixing valve unit, the connecting pipe unit for detecting an abnormally high temperature, and the switching valve unit for switching the water discharge port are divided, and the connecting pipe unit is Since the inlet and outlet connection portions of the switching valve unit have the same shape, a water outlet circuit for preventing hot water tapping by a connection position of the connection pipe unit and a water outlet circuit for enabling hot water tapping like hot water. Can be arbitrarily combined to improve versatility and usability while maintaining safety.

[Brief description of the drawings]

FIG. 1 is a sectional view of the configuration of a hot water mixing apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic view of a plane portion of the apparatus.

FIG. 3 is a configuration sectional view of a hot water mixing apparatus according to another embodiment of the present invention.

FIG. 4 is a configuration sectional view of a hot water mixing apparatus according to another embodiment of the present invention.

FIG. 5 is a sectional view showing the configuration of a hot water mixing apparatus according to one embodiment using a plurality of switching valve units of the present invention.

FIG. 6 is a configuration diagram of a conventional hot water mixing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water inflow path 2 Hot water inflow path 3 Mixing valve 4 Flow control valve 5 Switching valve 13 Temperature detector 14 Mixing valve drive device 15 Flow control valve drive device 17 Abnormal high temperature detection device 18 Controller 20 Outflow passage 21 Valve housing 22 Plane Part 23 Waterproof case 24 Mixing / flow control unit 25 Connection pipe unit 26 Switching valve unit

Claims (2)

(57) [Claims] 1. A hot water inflow path, a water inflow path, a valve housing having a flat portion, a mixing valve for adjusting a flow rate from the hot water inflow path and the water inflow path to adjust a temperature, and the mixing valve. An electrically driven mixing valve driving device, a temperature detector provided downstream of the mixing valve for detecting a temperature of the mixed hot water, a flow control valve for adjusting a flow rate of the mixed hot water, and an electric flow control valve. A flow control valve driving device, an abnormal high temperature detection device that detects an abnormally high temperature of the mixed hot water, the mixing valve driving device and the flow control valve driving device according to a signal from the temperature detector or the abnormal high temperature detection device. And a controller for controlling the temperature control device, the mixing valve drive device, the temperature detector, the flow rate control valve drive device, and the abnormally high temperature detection device are mounted on the flat portion, and the temperature detector Is fixed by installing the flow control valve drive It is, wherein the waterproof case the hot and cold water mixing device for waterproofing the flat portion. 2. A valve housing having a hot water inflow path, a water inflow path, and an outflow path, a mixing valve for adjusting a flow rate from the hot water inflow path and the water inflow path to adjust the temperature, and the mixing valve. A mixing valve driving device, and a mixing valve unit including a temperature detector provided at the downstream of the mixing valve and configured to detect a temperature of the mixed hot water,
An abnormally high temperature detecting device for detecting an abnormally high temperature of the mixed hot water, a connecting pipe unit including a connecting pipe, and a switch having one inlet and two outlets and switching the flow path of the mixed hot water to one of the two outlets. A switching valve unit comprising a valve and a switching valve housing, wherein an inlet-side connection of the connection pipe has the same shape as an inlet connection of the switching valve housing, and an outlet-side connection of the connection pipe. A hot and cold water mixing apparatus in which an outlet-side connection portion of the switching valve housing has the same shape as a connection portion of an outflow passage of the valve housing, and all connection portions are arranged on the same straight line.