CN201662239U - Automatic induction cut-off electric water heater - Google Patents

Abstract

The utility model discloses an automatic sensing and switching-off type electric water heater, which comprises an electric water heater, a water inlet pipe, a hot water outlet pipe, an electric heating device and a controller. The automatic sensing and switching-off type electric water heater is characterized in that an infrared sensor is arranged on a water storage tank and is connected with a power supply controller which is used for controlling the switching-on/off of a power supply of the electric water heater. The utility model is applicable to various electric water heaters, and can automatically switch off the power supply of the electric water heater through sensing the user with infrared rays. The user needs no manual switching-on/off, thereby making the use convenient and safe. Therefore, the utility model has high promotional value.

Description

Automatic induction cut-off electric water heater

technical field

The utility model relates to the technical field of electric water heaters.

Background technique

In the existing electric water heater industry, there is often a risk of electric shock during the bathing process. Many people have to unplug the power cord before taking a bath; but this passive protection method is not good for the life of the water heater plug on the one hand, and it is easy to It will cause loosening and heat generation; at the same time, frequent plugging and unplugging of the power plug by hand may also cause electric shock hazard. At present, the industry mostly adopts anti-electric wall or leakage protection to prevent users from electric shock, but these are all passive protections. And in many cases, for example, when the water quality is not good, the effect of the anti-electric wall is not obvious; in the process of using the leakage protection, due to the complicated electricity environment, electric shock accidents sometimes occur.

Contents of the invention

The purpose of this utility model is to provide a kind of not only simple in structure, convenient to use in order to solve the deficiencies in the prior art, but also can active protection, improve the safety of bathing automatic induction power-off type electric water heater.

The utility model adopts the following technical solutions to achieve the above object: an electric water heater with automatic induction power-off type, comprising an electric water heater, a water inlet pipe, a hot water outlet pipe, an electric heating device, and a controller, characterized in that: An infrared induction device is installed on the electric water heater, and the infrared induction device is connected with a power control device for controlling the power on and off of the electric water heater.

As a further description of the above scheme, the power control device is provided with a power plug connected to an external mains power supply, the power control device is connected to the power input end of the electric heating device, the infrared sensing device is connected to the signal input end of the power control device, and the infrared sensing A power controller is installed between the device and the power plug.

The infrared induction device is located at the lower part of the main body of the electric water heater, forming an angle α with the installation surface of the electric water heater.

The included angle α ranges from 15° to 60°.

The beneficial effect that the utility model can reach by adopting above-mentioned technical solution is:

The utility model adopts an infrared induction system on the electric water heater, cuts off the contact between the user and the electric water heater, senses the existence of the user through infrared rays, automatically cuts off the power supply of the electric water heater, and adopts active protection to make the user bath more safely; When it is turned on, restart the power of the electric water heater to avoid the risk of electric shock to the user during the bathing process.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a side view structural schematic diagram of Fig. 1;

Fig. 3 is the electrical diagram of the utility model.

Explanation of reference signs: 1. Electric water heater 2, electric heating device 3, infrared induction device 4, power control device 5, power plug 6, power controller.

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model is an automatic induction power-off electric water heater, which includes an electric water heater 1, a water inlet pipe, a hot water outlet pipe, an electric heating device 2, a water flow sensor and a controller, and an electric water heater. An infrared sensing device 3 is installed on the water heater 1, and the infrared sensing device 3 is connected with a power control device 4 for controlling the power on and off of the electric water heater. In this embodiment, the electric heating device adopts an electric heating tube, the power control device 3 is provided with a power plug 5 externally connected to a mains power supply, and a power controller 6 based on a thyristor principle is installed between the infrared sensing device 3 and the power plug. The device 4 is connected to the power input end of the electric heating device 2, and the infrared sensing device is connected to the signal input end of the power control device. The infrared sensing device 3 is located at the lower part of the electric water heater 1, forming an angle α with the installation surface of the electric water heater 1, and the range of the angle α is 15-60°, generally 30° is more suitable.

During use, when a person stands in the infrared sensing area, the presence of the user is sensed by infrared rays, and the power supply of the electric water heater is automatically cut off; when the user is detected to walk away, the power supply of the electric water heater is restarted to avoid electric heating tube leakage during the use of the electric water heater Condition.

The above is only a preferred embodiment of the present utility model. In addition to installing the power controller 6 based on the thyristor principle, a relay or the like may be used between the infrared sensing device 3 and the power plug. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present utility model, and these all belong to the protection scope of the present utility model.

Claims (5)

1. automatic induction switching-off formula electric heater, comprise electric heater, water inlet pipe, hot-water outlet pipe, electric heater unit and controller, it is characterized in that: the infrared induction device is installed on the described storage tank, and the infrared induction device is connected with the power control of control electric heater on/off.

2. automatic induction switching-off formula electric heater according to claim 1, it is characterized in that: described power control is provided with the external mains supply of attaching plug, power control is connected in the power input of electric heater unit, and the infrared induction device is connected in the signal input part of power control.

3. automatic induction switching-off formula electric heater according to claim 2 is characterized in that: between infrared induction device and the attaching plug power-supply controller of electric is housed.

4. automatic induction switching-off formula electric heater according to claim 1 and 2, it is characterized in that: described infrared induction device is positioned at the bottom of electric heater, with the electric heater installed surface α that has angle.

5. automatic induction switching-off formula electric heater according to claim 1 and 2 is characterized in that: described angle α scope is 15～60 °.

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