JPH04364693A - Hot water supply equipment - Google Patents

Abstract

PURPOSE:To obtain an optimum state for transmission reception with the hot water supply equipment and a remote controller by leading out an antenna from a side face of the hoot water supply equipment in a vertical direction to a pipe leadout direction. CONSTITUTION:In the hot water supply equipment of the remote control system using a radio wave, a hot water supply equipment antenna 3 is led out from a side face 15 of a case 15a of the hot water supply equipment 1 while being insulated from the case 15a and arranged almost perpendicularly to a pipe 10. Through the constitution above, the effect onto the transmission reception efficiency caused by the installation condition specific to the hot water supply equipment equipped with piping of gas and hot water and the environment in a pipe shaft installed by other pipe is avoided and the communication between the hot water supply equipment 1 and the remote controller 2 is ensured.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater that is remotely controlled using radio waves.

0002

2. Description of the Related Art As shown in FIG. 3, a conventional water heater of this type is connected to a controller 5 provided inside a water heater 1 installed outdoors by a remote control cable 27 that penetrates a wall 12. The control signal from the remote control device 2 is transmitted to the water heater 1 through the remote control cable 27.

0003

[Problems to be Solved by the Invention] However, in the configuration of the conventional remote control cable method described above, when installing the water heater, a hole is made in the wall 12 and the remote control cable 27 consisting of a multi-core signal line is passed through the hole to connect the water heater to the water heater. 1 and remote control device 2, respectively. Therefore, there is a problem that in addition to the necessity of penetrating the wall 12, there is a possibility that the remote control cable 27 may be connected incorrectly.

[0004] Also, a configuration has been devised in which a water heater is remotely controlled by a wireless remote controller using radio waves, and the status of the water heater is remotely monitored by a wireless remote controller. However, in order to put this type of wireless remote control water heater into practical use using radio waves, the antenna configuration is very important.

In other words, in the case of a rod-shaped antenna, if there is a rod-shaped metal object nearby, it will have little effect if it is perpendicular to the antenna, but if it is parallel to the antenna, the transmission and reception efficiency will decrease depending on the distance, as shown in Figure 4. There are cases where it gets significantly worse. However, in general, water heaters are housed outdoors or in a pipe shaft, and the remote controller is fixed to a wall indoors, and transmission and reception takes place between the two. Because rod-shaped metal objects such as these are installed at the same time, there is a problem in that antenna efficiency can be greatly reduced depending on the installation conditions.

[0006] Also, when the antenna is pulled out,
Even if the water heater is the same product, it can be installed stationary, wall-mounted,
Since various installation methods are used, such as installation inside a pipe shaft door, it was not possible to easily determine the location.

[0007]The present invention therefore solves the above-mentioned problems by taking into consideration the actual installation situation, eliminating the influence of the gas, hot water, and water piping of the water heater and other piping in the pipe shaft.
To provide a water heater having an antenna that provides an optimal state for transmission and reception between the water heater and a remote control device, and in particular, to not limit the installation method even with respect to various installation methods of the water heater.

[0008]

[Means for Solving the Problems] In order to achieve the above object, the water heater of the present invention is insulated from the casing of the water heater, and has pipes drawn out from the casing in a direction perpendicular to the direction in which the pipes are drawn out from the side of the water heater. It has a built-in antenna.

[0009]

[Function] With the above configuration, the present invention creates antenna installation conditions such that the gas pipe and hot water piping do not affect the transmission and reception efficiency after the water heater is installed, and smooth transmission and reception between the water heater and the remote control device can be performed. do it like this.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention in which a water heater is installed in a pipe shaft will be described below with reference to FIGS. 1 and 2. In FIGS. 1 and 2, 1 is a water heater, 2 is a remote control device, 3 is an antenna, 4 is a hot water transmitter/receiver, and 5 is a controller for controlling transmission and reception and for controlling the overall operation of the water heater 1. The water heater 1 is installed in a pipe shaft 11 as shown in the figure in a multi-family building such as an apartment building. 13 is a door for opening and closing the pipe shaft 11 space. 6
is an exhaust port of the water heater 1, which passes through the door 13 and is led to the outside. Numeral 10 is a pipe for supplying water, hot water, gas, etc. to the water heater 1, and is usually raised vertically from the floor surface 14 and connected at the bottom surface 16 of the water heater 1. 12 is a wall surface of the pipe shaft 11, through which radio waves emitted from the water heater antenna 3 and the remote control antenna 8 are transmitted. 7 is a remote control transmitter/receiver.

With the above configuration, the water heater antenna 3 is led out from the side surface 15 of the housing 15a of the water heater 1 insulated from the housing 15a, and is disposed almost perpendicularly to the pipe 10, so that various types of antennas inside the pipe shaft 11 can be connected to the water heater antenna 3. The influence of metal piping can be eliminated.

FIG. 2 is a control function block diagram of the water heater 1 and the remote controller 2. As shown in FIG. 17 is a water quantity detector, 18 is an igniter, 19 is a fuel setting device, 20 is an air quantity setting device, 21 is a fuel detector, 22 is a water heater power supply which is controlled by the controller 5, and realizes the functions of the water heater 1. do. The remote control device 2 includes a display 23, a setting device 24, an operation switch 25, a remote control power source 26, and the like.

Furthermore, the hot water transmitter/receiver 4 in the water heater 1 and the remote control transmitter/receiver 7 can communicate with each other via radio waves via their respective antennas 3 and 8. With such a configuration, when the contents set by the operation switch 25 and setting device 24 of the remote control device 2 are transmitted to the water heater 1 side as a radio wave signal, the remote control transmitter/receiver 7 receives it and outputs it to the display 23. .

[0014]

[Effects of the Invention] As explained above, the water heater of the present invention has the antenna arranged perpendicularly to the piping, thereby meeting the installation conditions specific to water heaters with gas and hot water piping. It is possible to eliminate the influence on the transmission and reception efficiency caused by the environment inside the pipe shaft where the piping is installed, and not only makes communication between the water heater and the remote control device more reliable, but also improves the communication efficiency when installing the water heater. This can reduce the amount of adjustment required and help save labor during installation work.

[0015] Furthermore, by placing the antenna on the side of the water heater, it not only does not get in the way when installed on a wall or when installed stationary, but also in each installation form,
You can easily keep the water heater at an appropriate distance from the side walls, etc.

[Brief explanation of drawings]

FIG. 1: External view of a water heater in an embodiment of the present invention

[Figure 2] Partial control block diagram of the device

[Figure 3] External view of a conventional water heater

[Figure 4] Diagram showing the influence of bar-shaped metal objects near the bar-shaped antenna

[Explanation of symbols]

1 Water heater 2 Remote control device 3 Water heater antenna 4 Hot water transmitter/receiver 5 Controller 10 Piping 15　Side of water heater

Claims (1)

[Claims] 1. Consisting of a water heater and a remote control device that remotely controls or monitors the water heater using radio waves, the water heater is installed inside the water heater and transmits control signals and monitor signals using radio waves. A water heater that has a water heater transmitter/receiver that transmits and receives water, and a water heater antenna that is insulated from the casing of the water heater and that extends from the side of the water heater in a direction perpendicular to the direction in which the piping is pulled out.