CN2227306Y - Electric heating pipe with superheat protection - Google Patents
Electric heating pipe with superheat protection Download PDFInfo
- Publication number
- CN2227306Y CN2227306Y CN 95211069 CN95211069U CN2227306Y CN 2227306 Y CN2227306 Y CN 2227306Y CN 95211069 CN95211069 CN 95211069 CN 95211069 U CN95211069 U CN 95211069U CN 2227306 Y CN2227306 Y CN 2227306Y
- Authority
- CN
- China
- Prior art keywords
- fuse
- electric heating
- heating tube
- heating pipe
- stationary pipes
- 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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Abstract
The utility model relates to an electric heating pipe with superheat protection. A fixing pipe for a fuse is welded on an electric heating pipe; an insulating sleeve and the fuse are arranged in the fixing pipe for a fuse; the conductor wires of the both ends of the fuse are respectively provided with a cotton varnished sleeve, and one end of the conductor wire of the fuse is connected with resistance wires which are positioned in the electric heating pipe by a wiring terminal; supply terminals are composed of the other end of the conductor wires of the fuse, and the other end of the resistance wires which are positioned in the electric heating pipe. The opening of the lower end of the fixing pipe of the fuse is provided with a rubber stopper. The utility model is suitable for domestic electric water heaters or electric heating showers. The utility model has the advantages that the properties of insulation and water sealing are favorable, the reliability is high, the sensitivity is high, the structure is simple, and disassembly and replacement are convenient.
Description
The utility model relates to a kind of electric heating tube, especially for the electric heating tube that has overtemperature protection in domestic, electric water heater or the electric heating shower.
Stipulate that domestic, electric water heater must be provided with the safety guard under abnormal operating state in the relevant domestic, electric water heater standard of China's promulgation in 1992, promptly electric heating tube can be cut off the electricity supply after anhydrous energising immediately, and irrecoverable.But the electric heating tube in present most of domestic, electric water heater or the electric heating shower does not have overheat protective function; generally be according to instructions for use; set up a cover overtemperature protection system in addition or utilize the temperature controller of controlling the water heater temperature, play superheat protecting function indirectly.Temperature controller and overtemperature protection system commonly used have: bimetal strip thermostat, hydraulic pressure temperature controller, electronic temperature control device, hydraulic pressure switch, fusing temperature limiter etc.More than various temperature control modes except that the fusing temperature limiter, major part is to be switched on or switched off power supply by relay, with control electric heating tube duty, belongs to and can recover attemperating unit.Be used in the electric heater, normally limit or regulate electric heater operating temperature in normal operation, more than various temperature controllers just can not play the safeguard protection effect, its reliability just is difficult to meet national standard-required in 1992.The fusing temperature limiter, though high reliability features is arranged, its complex structure, poor sensitivity, and be difficult for changeing, be difficult to use on the electrical heating water heater.
The purpose of this utility model is in order to overcome above-mentioned deficiency, provide a kind of have good insulation performance, water-stop, high reliability, high sensitivity, simple in structure, change the electric heating tube that has overtemperature protection easily.
The purpose of this utility model is to realize like this, welding fuse stationary pipes on the electric heating tube, dress insulation sleeve in the fuse stationary pipes, dress fuse in the insulation sleeve, adorn cotton varnished sleeve on the lead of fuse two ends, resistance wire one end in fuse one end lead and the electric heating tube is joined by binding post, and the resistance wire other end in the lead other end of fuse and the electric heating tube is formed supply terminals; The opening part dress rubber stopper of fuse stationary pipes lower end.
The utility model is owing to be equipped with insulation sleeve reliably high temperature resistant, high pressure resistant, that heat transfer is fast in the fuse stationary pipes; high reliability, highly sensitive fuse are housed in the insulation sleeve; fuse and electric heating tube are connected in the AC power of 220V through binding post; constitute a closed-loop path; when water heater anhydrous (dry combustion method), the heat of electric heating tube is delivered to fuse rapidly, is fusible in 30 seconds; cut off the electricity supply, play the effect of safeguard protection.It is also very convenient to change fuse, extracts rubber stopper out and just can take out insulation sleeve and fuse.
Below in conjunction with drawings and Examples the technical solution of the utility model is described.
Fig. 1 is the structural representation of the utility model embodiment.
With reference to Fig. 1,2 terminations of electric heating tube 11 are fixed on the water heater housing 7 by nut 13 respectively, the pipe position of electric heating tube 11 and fuse stationary pipes 1 top are to place in the water heater housing 7, one side outer wall of the pipe heating position of electric heating tube 11 welds mutually with the outer wall of fuse stationary pipes 1 top one side, fuse stationary pipes 1 lower end is fixed on the water heater housing 7 by swivel nut 5, between swivel nut 5 and the water heater housing 7 rubber blanket 6 being housed, is for preventing the seepage in the water heater housing 7.Insulation sleeve 2 is housed in the fuse stationary pipes 1, insulation sleeve 2 can adopt silicone tube or have insulating materials making high temperature resistant, high pressure resistant, that conduct heat fast, fuse 3 is housed in the insulation sleeve 2, adorns cotton varnished sleeve 4 respectively on the fuse 3 two ends leads, cotton varnished sleeve 4 has been insulating effects.Rubber stopper 10 is equipped with at fuse stationary pipes 1 lower ending opening place; resistance wire 14 1 ends in lead one end of fuse 3 and the electric heating tube 11 are joined by binding post 12; resistance wire 14 other ends in the lead other end of fuse 3 and the electric heating tube 11 are formed supply terminals; can insert in the 220V AC power; make electric heating tube 1 and fuse 3 constitute the closed-loop path; in water heater housing 7, fill with water; after connecting power supply; electric heating tube 11 energy operate as normal; when anhydrous in the water heater housing 7 (dry combustion method), the heat of electric heating tube 11 is delivered to fuse 3 rapidly, causes fuse 3 fusing; to cut off the electricity supply, play the safeguard protection effect.(fixedly this section position of the lower end of 2 terminations of electric heating tube 11 and fuse stationary pipes 1) is equipped with cover plate 9 on outer cover of water heater 7, and cover plate 9 two ends are to be joined by screw 8 and outer cover of water heater 7.After fuse 3 fusing, as long as pull down cover plate 9, extract rubber stopper 10 out, take out insulation sleeve 2 and fuse 3, change fuse 3 again, and connect and resistance wire 14 1 ends with terminals 12, water heater is reused.
Claims (2)
1, a kind of electric heating tube that has overtemperature protection, comprise electric heating tube, it is characterized in that: also comprise upward welding fuse stationary pipes (1) of electric heating tube (11), dress insulation sleeve (2) in the fuse stationary pipes (1), dress fuse (3) in the insulation sleeve (2), adorn cotton varnished sleeve (4) respectively on the lead at fuse (3) two ends, resistance wire (14) one ends in one end lead of fuse (3) and the electric heating tube (11) are joined by binding post (12), and resistance wire (14) other end in fuse (3) other end lead and the electric heating tube (11) is formed supply terminals; The opening part dress rubber stopper (10) of fuse stationary pipes (1) lower end.
2, the electric heating tube that has overtemperature protection according to claim 1 is characterized in that: fuse stationary pipes (1) lower end is fixed on the water heater housing (7) by swivel nut (5), between swivel nut (5) and the water heater housing (7) rubber blanket (6) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95211069 CN2227306Y (en) | 1995-05-12 | 1995-05-12 | Electric heating pipe with superheat protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95211069 CN2227306Y (en) | 1995-05-12 | 1995-05-12 | Electric heating pipe with superheat protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227306Y true CN2227306Y (en) | 1996-05-15 |
Family
ID=33861632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95211069 Expired - Fee Related CN2227306Y (en) | 1995-05-12 | 1995-05-12 | Electric heating pipe with superheat protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227306Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116522A (en) * | 2011-03-10 | 2011-07-06 | 宁波高新区健坤电热技术有限公司 | Boiling type liquid electric heater |
| CN102325393A (en) * | 2011-09-09 | 2012-01-18 | 深南电路有限公司 | Igniting prevention protecting device for liquid electric heater and liquid electric heater |
| CN104779117A (en) * | 2014-12-31 | 2015-07-15 | 李镇南 | Magnetic isolating fuse applied to magnetic field environment and electromagnetic heater |
-
1995
- 1995-05-12 CN CN 95211069 patent/CN2227306Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116522A (en) * | 2011-03-10 | 2011-07-06 | 宁波高新区健坤电热技术有限公司 | Boiling type liquid electric heater |
| CN102325393A (en) * | 2011-09-09 | 2012-01-18 | 深南电路有限公司 | Igniting prevention protecting device for liquid electric heater and liquid electric heater |
| CN104779117A (en) * | 2014-12-31 | 2015-07-15 | 李镇南 | Magnetic isolating fuse applied to magnetic field environment and electromagnetic heater |
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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 |