CN2511944Y - Electrode water level and temperature sensor - Google Patents
Electrode water level and temperature sensor Download PDFInfo
- Publication number
- CN2511944Y CN2511944Y CN 01268677 CN01268677U CN2511944Y CN 2511944 Y CN2511944 Y CN 2511944Y CN 01268677 CN01268677 CN 01268677 CN 01268677 U CN01268677 U CN 01268677U CN 2511944 Y CN2511944 Y CN 2511944Y
- Authority
- CN
- China
- Prior art keywords
- circuit board
- barred body
- connection terminal
- weight
- heavy hammer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses an electrode water level and temperature sensor, wherein a heavy hammer made of good conduct material is arranged at the lower end of a bar, a wiring terminal is arranged at an upper end of the bar, a circuit board is arranged in the bar and between the heavy hammer and the wiring terminal, a thermic element is welded at a position of the circuit board close to the heavy hammer, two ends of the thermic element are respectively connected with the wiring terminal on the circuit board to form a temperature sampling signal, external circles of the bar of positions of 25 percent, 50 percent, 75 percent and 100 percent relative to total length of the bar from an end of the heavy hammer are respectively provided with an annular electrode, and positions on the circuit board relative to annular electrodes are respectively provided with a current-limiting resistance, wherein one end of each current-limiting resistance is connected with a corresponding annular electrode, while the other end is communicated with the wiring terminal after connecting a line on the circuit board, the heavy hammer is connected with the wiring terminal through the line on the circuit board, and a water level sampling output signal is formed between the heavy hammer and each current-limiting resistance. The utility model not only can effectively detect water temperature and water level in a water tank, but also has the advantages of simple structure, long service life and stable performance.
Description
Technical field
The utility model relates to a kind of water temperature, level sensor, especially a kind of electric pole type water-temperature water-level sensor that is used for solar water heater.
Background technology
At present, making in the society and use in the water temperature, level sensor that are used on the solar water heater can be divided into stainless ring pyrocondensation cast, silicon rubber becket electrode type, stainless electrode injection molding three classes substantially.Because stainless ring pyrocondensation cast and silicon rubber becket electrode type sensor are in use easily because of aging formation infiltration makes its internal circuit short circuit malfunctioning, so serviceable life, weak point was the unsurmountable defective of its existence.Stainless electrode injection molding sensor, because its liner is different with the expansion coefficient of moulding part outward, in use its junction easily produces the gap, and cause infiltration to make its scarce road influence normal use because of rising-heat contracting-cold also easily produces the gap between electrode and the ambroin, cause the defective that usability is unstable and serviceable life is short.
Summary of the invention
Task of the present utility model is to provide a kind of electric pole type water temperature, level sensor, and this sensor is used for solar water heater, not only can effectively detect water temperature and water level in the water tank, and have simple in structure, long service life, the characteristics of stable performance.
Task of the present utility model realizes with following technical scheme.It is to be provided with the weight that a usefulness good conductor material is made in the lower end of barred body, be provided with a connection terminal in the upper end of barred body, in barred body and from weight, a circuit board is set between the connection terminal place, welding one thermal sensing element on the close circuit board at weight place, two ends of this thermal sensing element are connected and the formation temperature sampled signal with connection terminal by the line on the circuit board respectively, rise to respect to 25% of barred body total length in deadweight hammer tip portion, 50%, 75%, on 100% everywhere the periphery of barred body a ring electrode is set respectively, on with respect to the circuit board at each ring electrode place, a current-limiting resistance is set respectively, one end of each current-limiting resistance is connected with its pairing ring electrode respectively, its other end is connected with connection terminal after being connected by the line on the circuit board, weight is connected with connection terminal by the line on the wiring board, forms each water level sampled output signal between this weight and each current-limiting resistance.The above-mentioned barred body of the utility model adopts injection moulding or casting process moulding.
Owing to adopted technique scheme, when using the utility model, it is vertically placed in the fluid to be measured container, the interior fluid temperature of container this moment will conduct gives thermal sensing element, this thermal sensing element is given the measurement display device with the fluid temperature variable signal by connection terminal, thereby realizes measuring the task of showing fluid temperature.When liquid level in the container is in 25% position, to be communicated with by liquid phase between ring electrode on this place's barred body and the weight, formed liquid resistance current-limiting resistance pairing with it forms resistance in series between this ring electrode and the weight at this moment, and formation signal output loop, this output signal is sent into the measurement display device by lead-out terminal, thereby realizes showing the task of this place's liquid level; When the liquid level in the container was in 50%, the resistance in series that formed herein resistance in series and 25% place form formed the shunt circuit, and this output signal is sent into the measurement display device through connection terminal; Thereby realize showing the task of this place's liquid level; When being in 75%, 100% place respectively, the liquid level of container measures display device with the liquid level that demonstrates respectively everywhere.Thereby realize showing the task of each point liquid level.
The beneficial effects of the utility model, the one, this sensor combines water temperature, water level signal collection together, so have the characteristics of two kinds of functions; The 2nd, owing to adopt by injection moulding or casting molding process respectively each positioning parts on the relevant position of barred body, thereby have the advantages that can effectively prevent fluid seepage and cause short circuit; The 3rd, because current-limiting resistance and thermal sensing element all are welded on the circuit board, and each extension line is all realized by circuit board, so can not occur because of in injection moulding or casting cycle, producing the phenomenon that lead-in wire is broken, thereby have the high characteristics of finished product rate in the manufacturing process; The 4th, owing to adopted injection moulding or casting process, so have one-time formed characteristics.
Can effectively realize task of the present utility model in sum.
Description of drawings
Accompanying drawing 1 has provided structural representation of the present utility model;
Accompanying drawing 2 has provided electric theory structure synoptic diagram of the present utility model.
In the accompanying drawings, 1 for barred body, 2 for circuit board, 3,5,7,9 be respectively ring electrode, 4,6,8,10 be respectively current-limiting resistor, 11 for weight, 12 for thermal sensing element, 13 for connection terminal.
Embodiment
With reference to the accompanying drawings, be provided with the weight 11 that a usefulness good conductor material is made in the lower end of barred body 1, be provided with a connection terminal 13 in the upper end of barred body 1, in barred body 1 and from weight 11 to a circuit board 2 is set between the connection terminal 13, welding one thermal sensing element 12 on the close circuit board 2 at weight 11 places, two ends of this thermal sensing element 12 are connected with connection terminal 13 by the connecting line that is arranged on the circuit board, this two line forms water temperature sampled signal line, from the end of weight 11 to respect to 25% of barred body 1 total length, 50%, 75%, on 100% everywhere the periphery of barred body 1 ring electrode 9 is set respectively, 7,5,3, with respect to each ring electrode 9,7,5, one current-limiting resistance 10 respectively is set on the circuit board 2 at 3 places, 8,6,4, each current-limiting resistance 10,8,6, pairing with it the respectively ring electrode 9 of an end of 4,7,5,3 are connected, its other end is connected with connection terminal 13 by being arranged at line on the circuit board 2 back that is connected, and weight 11 is connected with connection terminal by the line on the wiring board 2, this two line forms the water level sampled signal.
Claims (2)
1, the electric pole type water temperature, level sensor, mainly by barred body, weight and circuit board are formed, it is characterized in that being provided with the weight that a usefulness good conductor material is made in the lower end of barred body, be provided with a connection terminal in the upper end of barred body, in barred body and from weight, a circuit board is set between the connection terminal place, welding one thermal sensing element on the close circuit board at weight place, two ends of this thermal sensing element are connected and the formation temperature sampled signal with connection terminal by the line on the circuit board respectively, rise to respect to 25% of barred body total length in deadweight hammer tip portion, 50%, 75%, on 100% everywhere the periphery of barred body a ring electrode is set respectively, on with respect to the circuit board at each ring electrode place, a current-limiting resistance is set respectively, one end of each current-limiting resistance is connected with its pairing ring electrode respectively, its other end is connected with connection terminal after being connected by the line on the circuit board, and weight is connected with connection terminal by the line on the wiring board.
2, electric pole type water temperature according to claim 1, level sensor is characterized in that barred body adopts injection moulding or casting process moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01268677 CN2511944Y (en) | 2001-12-03 | 2001-12-03 | Electrode water level and temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01268677 CN2511944Y (en) | 2001-12-03 | 2001-12-03 | Electrode water level and temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2511944Y true CN2511944Y (en) | 2002-09-18 |
Family
ID=33674823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01268677 Expired - Fee Related CN2511944Y (en) | 2001-12-03 | 2001-12-03 | Electrode water level and temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2511944Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314746A (en) * | 2011-03-16 | 2012-01-11 | 陈海波 | Irrigation alarm |
-
2001
- 2001-12-03 CN CN 01268677 patent/CN2511944Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314746A (en) * | 2011-03-16 | 2012-01-11 | 陈海波 | Irrigation alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |