CN2460975Y

CN2460975Y - Water-level sensor of solar water heater

Info

Publication number: CN2460975Y
Application number: CN 00261877
Authority: CN
Inventors: 胡翔; 胡桢
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-13
Filing date: 2000-12-13
Publication date: 2001-11-21
Anticipated expiration: 2010-12-13

Abstract

The utility model relates to a water-level sensor of a solar water heater, the structure of which is provided with a housing, which is arranged on a base of the sensor. The inner part of the housing is provided with an inner framework of the sensor, and the framework is provided with an infrared photoelectric tube. The center part of the framework is provided with a center hole, and the center hole is provided with a floating rod, the lower end of which is connected with a floating ball. The housing is provided with a leading wire connected with an electric controller. The utility model has the advantages that no water scale is generated for the sensor is not arranged in water, so the sensor is not afraid of the interference of the water scale, the service life and the measuring accuracy are improved, the mechanical motion inside the sensor can not be affected, and the failure of the sensor can not be caused.

Description

The level sensor of solar water heater

The utility model relates to a kind of level sensor that is used for solar water heater.

The prior solar water heater level sensor is to be placed in the solar water heater water tank, it contacts with water, contact it with water and can directly influence the serviceable life of sensor, contact with water and must have incrustation scale, incrustation scale can influence electric conductivity, cause measurement inaccurate, also can influence the mechanical motion of sensor internal simultaneously, cause faulty sensor.

The purpose of this utility model is the defective at above-mentioned existence, proposes a kind of sensor and can vertically be placed in the solar water heater water tank top, and sensor does not enter water tank, does not contact with water.

Technical solution of the present utility model

Its structure has a shell, it is installed on the sensor base, portion is provided with the sensor internal skeleton in the enclosure, the sensor internal skeleton is provided with infrared photocell, have an inner skeleton center pit in the centre of sensor internal skeleton, be inserted with a fly rod in the inner skeleton center pit, its following termination ball float has an extension line that joins with electric controller on the shell.

Advantage of the present utility model:

Because sensor not in water, does not have incrustation scale, the interference of water funk dirt has anything but improved the accuracy of serviceable life and measurement, can not influence the mechanical motion of sensor internal, can not cause faulty sensor.

Accompanying drawing is an example structure synoptic diagram of the present utility model.

The 1st, shell, the 2nd, sensor internal skeleton, the 3rd, infrared photocell, the 4th, inner skeleton center pit, the 5th, encapsulation filling material, the 6th, fly rod, the 7th, sensor base, the 8th, solar water heater water tank shell, the 9th, ball float, the 10th, solar water heater tank inner container, the 11st, O-ring seal, the 12nd, sensor extension line.

Further describe technical solution of the present utility model below in conjunction with accompanying drawing:

Shell 1 is installed on the sensor base 7; shell 1 adopts pipe; sensor base 7 plays the support sensor; each parts of 1 protection of shell sensor internal; shell 1 inside is provided with sensor internal skeleton 2; it installs infrared photocell 3 on the one hand; have an inner skeleton center pit 4 on the other hand therein; above-mentioned infrared photocell 3 is to be provided with according to the setting needs that water level is indicated; be set to five pairs generally speaking; represent the height of water level respectively by them; inner skeleton center pit 4 is that a diameter is the elongated hole about 3.5mm; on its opposite position; aperture is opened in both sides; be used for placing photoelectric tube 3; be inserted with a fly rod 6 in the inner skeleton center pit 4; diameter is the hard elongate rod of 3mm; its following termination ball float 9; form one can easy on and off activity with the height of water level ball float; the fly rod device; fly rod inserts the center sensor hole; ball float is placed in the solar water heater water tank; it is unique that what contact with water is the bottom of ball float; buoyancy is enough; just be not afraid of fouling; an extension line 12 that joins with electric controller is arranged on the shell 1, and the electric controller here is a prior art, and it has water level; water temperature display device and automatic loading water; the compositions such as device of cutting off the water.It is used for controlling the waterborne of water tank and stops, and the water level in the water tank shows by electric controller.

Claims

1, the level sensor of solar water heater, it is characterized in that having a shell (1), it is installed on the sensor base (7), be provided with sensor internal skeleton (2) in shell (1) inside, sensor internal skeleton (2) is provided with infrared photocell (3), have an inner skeleton center pit (4) in the centre of sensor internal skeleton (2), be inserted with a fly rod (6) in the inner skeleton center pit (4), its following termination ball float (9) has an extension line that joins with electric controller (12) on the shell (1).