CN201066285Y - A water temperature and level sensor for solar water heater - Google Patents

Abstract

The utility model discloses a water temperature and water level sensor for a solar water heater, which comprises a working circuit, a stainless steel sleeve, a silicone tube, a stainless steel support tube and a silicone connecting tube. Tubes, silicone tubes and silicone connecting tubes, the wires of the working circuit are fixedly connected to the inner walls of the stainless steel sleeves, the silicone connecting tubes are inserted into the stainless steel support tubes, and one end is connected to the outer end of the uppermost stainless steel sleeve. The interior of the tube, the silicone tube and the silicone connection tube is filled with fluid silicone, and the fluid silicone seals and covers the working circuit. The sensor of the utility model has the advantages of stable operation, long service life and the like.

Description

A solar water heater water temperature and water level sensor

technical field

The utility model relates to a water temperature and water level sensor for a solar water heater.

Background technique

The water temperature and water level sensor of the solar water heater is arranged in the water tank to detect the water temperature and water level in the water tank. The structure of the sensor generally includes working lines, stainless steel sleeves and heat shrinkable tubes (generally made of rubber materials). The tubes are distributed at intervals and connected airtightly to seal the working circuit. Since the sensor is immersed in the water tank for a long time, affected by the high temperature and temperature changes of the water tank, the heat shrinkable tube itself and the connection between the stainless steel sleeve are prone to cracks or breaks, especially the top heat shrinkable tube due to long-term bending. It is easier to fold like this, so that the working line is immersed in water and cannot work normally, which affects the working stability and service life of the sensor.

Contents of the invention

The technical problem to be solved by the utility model is to propose a solar water heater water temperature and level sensor with good working stability and long service life.

In order to solve the above technical problems, a solar water heater water temperature and water level sensor of the utility model includes a working circuit, a stainless steel sleeve, a silicone tube, a stainless steel support tube and a silicone connecting tube, and the stainless steel sleeve and the silicone tube are spaced apart and connected to each other , the working circuit is set in the stainless steel sleeve, the silicone tube and the silicone connecting pipe, each wire of the working circuit is fixedly connected with the inner wall of each stainless steel casing respectively, and the silicone connecting pipe It is put through the stainless steel support tube, one end of which is connected to the outer end of the uppermost stainless steel sleeve, and the interior of the stainless steel sleeve, the silicone tube and the silicone connecting tube is filled with fluid silicone, and the fluid silicone Seal and cover the working circuit.

In the above water temperature and level sensor for a solar water heater, a step is provided on the inner wall of the port of the stainless steel sleeve, and the silicone tube and the silicone connecting tube are sleeved on the step.

Due to the adoption of the above-mentioned technical structure in the utility model, when making it, the wires of the working circuit are fixedly connected with the inner walls of the stainless steel sleeves respectively, the stainless steel sleeves and the silicone tubes are spaced apart and connected to each other, and then the silicone tubes are connected to each other. Put it through the stainless steel support tube, adjust the mutual position between the two according to the length of the installation, then connect one end of the silicone connecting tube to the outer end of the uppermost stainless steel sleeve, and finally inject fluid silicone into the stainless steel sleeve and silicone tube In this way, after the silica gel is dry and hard, the working circuit will be sealed and covered, and the joints between the stainless steel sleeve and the silicone tube, and the stainless steel sleeve and the silicone connection tube will be sealed. Since the silicone tube is relatively soft, its high temperature resistance is better, and it seals the entire sensor in one piece, so it can effectively ensure the working stability of the sensor and prolong the service life of the sensor. The silicone tube and the silicone connecting tube are sleeved on the steps set on the inner wall of the stainless steel sleeve port, which can prevent the silicone tube and the silicone connecting tube from coming out of the stainless steel sleeve when the fluid silicone is injected.

Description of drawings

Fig. 1 is a structural schematic diagram of a water temperature and water level sensor for a solar water heater of the present invention.

Detailed ways

As shown in Figure 1, the water temperature and water level sensor includes a working circuit 1, a stainless steel sleeve 2, a silicone tube 3, a stainless steel support tube 4 and a silicone connecting tube 5, the stainless steel sleeve 2 and the silicone tube 3 are distributed at intervals, and the ports of the stainless steel sleeve 2 The inner wall is provided with a step, and the silicone tube 3 is sleeved on the step. The silica gel connecting pipe 5 is sheathed in the stainless steel support pipe 4, and one end of the silica gel connecting pipe 5 is sleeved on the inner wall step of the outer end of the uppermost stainless steel casing 2. The working circuit 1 is arranged in the stainless steel casing 2, the silicone tube 3 and the silicone connecting pipe 5, and each wire of the working circuit 1 is fixedly connected with the inner walls of the stainless steel casing 2 respectively. The interior of the stainless steel sleeve 2, the silicone tube 3 and the silicone connecting tube 5 is filled with fluid silicone 6. After the fluid silicone 6 dries hard, the working circuit 1 is sealed and covered, and is integrated with the silicone tube 3 and the silicone connecting tube 5. At the same time, through penetration, the fluid silica gel 4 also seals the joints between the silica gel tube 3 and the stainless steel casing 2 and between the silica gel connecting tube 5 and the stainless steel casing 2 .

Claims (2)

1. solar water heater water-temperature water-level sensor, comprise working line and stainless steel sleeve pipe, it is characterized in that, it also includes silicone tube, stainless steel support column and silica gel connecting pipe, described stainless steel sleeve pipe and described silicone tube are spaced apart and interconnect, described working line is located at described stainless steel sleeve pipe, in described silicone tube and the described silica gel connecting pipe, each lead of described working line is fixedly linked respectively and between the inwall of described each stainless steel sleeve pipe, described silica gel connecting pipe is set in the described stainless steel support column, the one end links to each other with the stainless steel sleeve pipe outboard end of described the top, described stainless steel sleeve pipe, fluid silica gel is filled with in the inside of described silicone tube and described silica gel connecting pipe, and described fluid silica gel coats described working line sealing.

2. a kind of solar water heater water-temperature water-level sensor as claimed in claim 1 is characterized in that the port inner wall of described stainless steel sleeve pipe is provided with step, and described silicone tube and silica gel connecting pipe are sheathed on this step.

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