CN202420546U

CN202420546U - Water-level temperature sensor for solar water heater

Info

Publication number: CN202420546U
Application number: CN2011204436350U
Authority: CN
Inventors: 苑广礼
Original assignee: QINGDAO XURUI ELECTRONICS CO Ltd
Current assignee: QINGDAO XURUI ELECTRONICS CO Ltd
Priority date: 2011-11-10
Filing date: 2011-11-10
Publication date: 2012-09-05
Anticipated expiration: 2021-11-10

Abstract

The utility model discloses a water-level temperature sensor for a solar water heater, which belongs to the field of solar energy, and comprises a measuring body, a bent pipe, a balance pipe and a resistor integrator, wherein the measuring body comprises an outer sleeve, reinforcing ribs, six measuring terminals and a temperature sensor. The outer sleeve is a sleeve with a peripheral wall and a sealed bottom and comprises six electrode protecting sleeves and seven insulation sealing sleeves, the seven insulation sealing sleeves and the six electrode protecting sleeves are arranged in the sequence of insulation and conduction, and the six measuring terminals and the temperature sensor are arranged in the reinforcing ribs which are arranged in the outer sleeve. The water-level temperature sensor for the solar water heater comprises the measuring body, the bent pipe, the balance pipe and the resistor integrator in sequential connection, so that precision and stability of water level measurement and temperature measurement can be enhanced, and the service life of the water-level temperature sensor can be prolonged to five years.

Description

The water level temperature sensor that is used for solar water heater

Technical field

The utility model relates to the solar water heater field, particularly is used for the water level temperature sensor of solar water heater.

Background technology

At present, China has become maximum in the world solar water heater producing country, and annual production is about the countries in the world sum.But the water level temperature sensor that is used for solar water heater that matches with it but is in the stage of research and development always.

There is following problem usually in the solar energy water megadyne temperature degree sensor that uses in the market: 1, the detection of sensor water-temperature water-level is subject to the disturbing effect of water quality, incrustation scale etc., and the data of collection are accurate inadequately, had a strong impact on the control accuracy of controller.2, sensor needs long-term work among water-heater water tank, because the heat of vacuum tube is big, passes to a lot of heats of water-heater water tank; Make water tank temperature can reach about 100 ℃ for a long time; Short time can reach 130 ℃, even 150 ℃, this has just brought high temperature resistant problem to sensor.3, the water-temperature water-level in solar water heater's water tank is surveyed: generally with temperature-sensing probe and water-level probe direct contact water source all, leaking causes sensor failure.Serviceable life shorter, be mostly about 1 year.

The utility model content

In order to overcome the short problem of poor accuracy, poor stability and serviceable life that above-mentioned sensor of the prior art exists, the utility model embodiment provides a kind of water level temperature sensor that is used for solar water heater.Said technical scheme is following:

A kind of water level temperature sensor that is used for solar water heater; Said sensor comprises measurement body, bend pipe, balance pipe and the resistance integrator that connects in order; Said measurement body is used to measure water level and temperature; Said bend pipe is used to connect said measurement body and said balance pipe, and said balance pipe is used for fixing said water level temperature sensor, and said resistance integrator is used for converting water level signal into the resistance signal;

Said measurement body comprises overcoat, reinforcement, six measurement terminal and temperature sensor; Said overcoat is for being provided with the cover of wall and bottom seals all around; Said overcoat comprises six electrode sheaths and seven sections insulated enclosure covers; Said seven sections insulated enclosures cover and said six electrode sheaths are disposed in order with insulation and conducting, are arranging said reinforcement in the said overcoat, are arranging said six measurement terminal and said temperature sensor in the said reinforcement; Wherein, Said six electrode sheaths be provided with position and said six measurement terminal that the position is set is corresponding, said six measurement terminal link to each other with said resistance integrator through signal wire separately, said six electrode sheaths are used to measure different water levels.

Particularly, said reinforcement is the cylindrical shell of a side opening.

Particularly, as preferably, said reinforcement is made of aluminum, and said reinforcement surface anodizing.

Particularly, as preferably, said insulated enclosure cover adopts epoxy-plastic packaging glue to process.

Further, the inner filled high-temperature marine glue of said bend pipe.

Further, the inner filled high-temperature marine glue of said balance pipe.

Further, said resistance integrator comprises shell and is located at the surface-mounted integrated circuit in the said shell, filled high-temperature marine glue in the said shell.

Particularly, as preferably, said six electrode sheaths are represented the one 0% level electrodes, 20% level electrode, 50% level electrode, 80% level electrode, the two 0% level electrode and 100% level electrodes from the bottom to top respectively.

Particularly, as preferably, said temperature sensor is arranged near said 20% level electrode.

The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: compare prior art; The said water level temperature sensor of the utility model comprises measurement body, bend pipe, balance pipe and the resistance integrator that connects in order; Can improve accuracy and the stability of measuring water level, temperature; Improve product serviceable life, make bring up to 5 years the serviceable life of said water level temperature sensor.

Description of drawings

In order to be illustrated more clearly in the technical scheme among the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the said front view that is used for the water level temperature sensor of solar water heater of the utility model embodiment;

Fig. 2 is the main cut-open view of Fig. 1;

Fig. 3 is the enlarged drawing of A among Fig. 2;

Fig. 4 is the stereographic map of the said reinforcement of the utility model embodiment;

Fig. 5 is the front view of the said reinforcement of the utility model embodiment;

Fig. 6 is the vertical view of Fig. 5.

Each symbolic representation implication is following among the figure:

10 measure body, 11 overcoats, and 12 reinforcements, the 13A-13F measurement terminal, 14 temperature sensors, the 15A-15F electrode sheath, 16 insulated enclosure covers, 17 signal wires,

20 bend pipes,

30 balance pipes,

40 resistance integrators, 41 shells, 42 surface-mounted integrated circuits.

Embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model embodiment is done to describe in detail further below.

As shown in Figure 1; The said water level temperature sensor that is used for solar water heater of the utility model embodiment; Said sensor comprises measurement body 10, bend pipe 20, balance pipe 30 and the resistance integrator 40 that connects in order; Said measurement body 10 is used to measure water level and temperature; Said bend pipe 20 is used to connect said measurement body 10 and said balance pipe 30, and said balance pipe 30 is used for fixing said water level temperature sensor 14, and said resistance integrator 40 is used for converting water level signal into the resistance signal;

As shown in Figure 2; Said measurement body 10 (referring to Fig. 1) comprises overcoat 11, reinforcement 12, six

measurement terminal

13A, 13B, 13C, 13D, 13E, 13F and temperature sensors 14; Said overcoat 11 is for being provided with the cover of wall and bottom seals all around; Said overcoat 11 comprises six electrode sheaths and seven sections insulated enclosure covers 16; Said seven sections insulated enclosures cover 16 is disposed in order with insulation and conducting with said six

electrode sheath

15A, 15B, 15C, 15D, 15E, 15F; Arranging said reinforcement 12 in the said overcoat 11; Arranging said six

measurement terminal

13A, 13B, 13C, 13D, 13E, 13F and said temperature sensor 14 in the said reinforcement 12, wherein, said six electrode sheaths be provided with position and said six

measurement terminal

13A, 13B, 13C, 13D, 13E, 13F that the position is set is corresponding; Said six

measurement terminal

13A, 13B, 13C, 13D, 13E, 13F link to each other with said resistance integrator 40 through signal wire 17 separately, and said 15A, 15B, 15C, 15D, 15E, 15F are used to measure different water levels.

Compare prior art; The said water level temperature sensor of the utility model comprises measurement body 10, bend pipe 20, balance pipe 30 and the resistance integrator 40 that connects in order; Adopt said structure can improve accuracy and the stability of measuring water level, temperature; And can greatly improve product serviceable life, make bring up to 5 years the serviceable life of said water level temperature sensor 14.

Referring to shown in Figure 2, said six the electrode sheath 15A of the utility model embodiment, 15B, 15C, 15D, 15E, 15F preferably adopt 304 stainless steels to process, and six

measurement terminal

13A, 13B, 13C, 13D, 13E, 13F preferably adopt stainless steel.Wherein,

electrode sheath

15A, 15B, 15C, 15D, 15E, 15F are that level electrode is connected with signal wire 17 and is used for transmitting water level signal.

Referring to shown in Figure 2, as preferably, in the present embodiment; Electrode

sheath

15A, 15B, 15C, 15D, 15E, 15F use tainless terminal crimping signal wire 17 with being connected of signal wire 17; Adopt the high pressure spot welding technology to connect then, have high temperature resistant, firm, the characteristics of signal stabilization.Wherein, the preferred Teflon electric wires that adopt of signal wire 17 can heatproof 200 ℃, and signal wire 17 is designed to different colours, and each electrode is distinguished.

Particularly, shown in Fig. 4-6, said reinforcement 12 is the cylindrical shell of a side opening; The xsect of said reinforcement 12 is the U shape, through the intensity that reinforcement 12 can improve the measurement body 10 of said sensor is set, will measure the inner signal wire of body 10 17, six

measurement terminal

13A, 13B, 13C, 13D, 13E, 13F and temperature sensor 14 protections simultaneously inside; Pressure excessive when preventing injecting glue causes damage; And U shape structure can also play good fixation, and

electrode sheath

15A, 15B, 15C, 15D, 15E, 15F is all fixing point-blank, guarantees the uniformity coefficient of construction materials contract; Prevent survey partially, and influence the problem of life of product.

Particularly, as preferably, said reinforcement 12 is made of aluminum, and said reinforcement 12 surperficial anodizing.

Particularly, as preferably, said insulated enclosure cover 16 adopts the epoxy-plastic packaging glue to process, and preferably adopts TH9100 type epoxy-plastic packaging glue.

Referring to shown in Figure 2, in the present embodiment, the overcoat of measuring in the body 10 11 adopts 260 tons of press injection mouldings, has guaranteed the compactness of product, makes that the density of insulated enclosure cover 16 is very big, has high water proofing property, temperature tolerance.

Further, referring to shown in Figure 2, said bend pipe 20 inner filled high-temperature marine glues; Sensor is got into behind the workspace naturally vertically; Consistance, the accuracy of guaranteed water level test can prevent that steam from getting into resistance integrator 40 along signal wire 17 simultaneously, and the measurement that causes were lost efficacy.Said bend pipe 20 is the insulation bend pipe, in the present embodiment, and the bend pipe 20 preferential curved rubber hoses that adopt.

Further, said balance pipe 30 inner filled high-temperature marine glues can prevent that steam from getting into resistance integrator 40 along signal wire 17, and the measurement that causes were lost efficacy.

Further, referring to shown in Figure 2, said resistance integrator 40 comprises shell 41 and is located at the surface-mounted integrated circuit 42 in the said shell 41, and filled high-temperature marine glue in the said shell 41 prevents that external force damage and steam from getting into.

Present embodiment; Said resistance integrator 40 is designed into sensor inoperative zone; Use simultaneously and inject the high temperature marine glues in the shell 41, guaranteed the stability of signal promptly to improve the insulated enclosure quantity of material that can inject in the sensor body simultaneously; Ensure the unobstructed of glue injection channel again, reached best sealing effectiveness.

Particularly; Referring to shown in Figure 2; As preferably, said six

electrode sheath

15A, 15B, 15C, 15D, 15E, 15F represent 0% level electrode, 20% level electrode, 50% level electrode, 80% level electrode, 0% level electrode and 100% level electrode from the bottom to top respectively.

Particularly, referring to shown in Figure 3, as preferably, said temperature sensor 14 is arranged near said 20% level electrode.

In the present embodiment; The temperature sensor 14 preferred BT thermistors that adopt, the cableties crimping increases silica gel protected simultaneously; The epoxy resin parcel; Make temperature sensor 14 obtain the independent protection measure, double-deck protection has improved 14 serviceable lifes of temperature sensor effectively, and BT resistance is single-ended glass envelope resistance; Can be the axial diode type than the DT resistance that generally adopts on the present market), AT resistance is that epoxide resin type resistance all is improved largely on temperature measurement accuracy and stability, uses the cableties crimping can guarantee the influence that temperature sensor 14 is not brought by the thawing of high-temperature operation scolding tin simultaneously.

The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. water level temperature sensor that is used for solar water heater; It is characterized in that; Said sensor comprises measurement body, bend pipe, balance pipe and the resistance integrator that connects in order, and said measurement body is used to measure water level and temperature, and said bend pipe is used to connect said measurement body and said balance pipe; Said balance pipe is used for fixing said water level temperature sensor, and said resistance integrator is used for converting water level signal into the resistance signal;

2. water level temperature sensor as claimed in claim 1 is characterized in that, said reinforcement is the cylindrical shell of a side opening.

3. water level temperature sensor as claimed in claim 2 is characterized in that said reinforcement is made of aluminum, and said reinforcement surface anodizing.

4. water level temperature sensor as claimed in claim 1 is characterized in that, said insulated enclosure cover adopts epoxy-plastic packaging glue to process.

5. water level temperature sensor as claimed in claim 1 is characterized in that, the inner filled high-temperature marine glue of said bend pipe.

6. water level temperature sensor as claimed in claim 1 is characterized in that, the inner filled high-temperature marine glue of said balance pipe.

7. water level temperature sensor as claimed in claim 1 is characterized in that, said resistance integrator comprises shell and is located at the surface-mounted integrated circuit in the said shell, filled high-temperature marine glue in the said shell.

8. like the described water level temperature sensor of each claim of claim 1-7; It is characterized in that said six electrode sheaths are represented the one 0% level electrodes, 20% level electrode, 50% level electrode, 80% level electrode, the two 0% level electrode and 100% level electrodes from the bottom to top respectively.

9. water level temperature sensor as claimed in claim 8 is characterized in that, said temperature sensor is arranged near said 20% level electrode.