CN201837074U - Safety type heating device for electric water heater - Google Patents
Safety type heating device for electric water heater Download PDFInfo
- Publication number
- CN201837074U CN201837074U CN2010205414369U CN201020541436U CN201837074U CN 201837074 U CN201837074 U CN 201837074U CN 2010205414369 U CN2010205414369 U CN 2010205414369U CN 201020541436 U CN201020541436 U CN 201020541436U CN 201837074 U CN201837074 U CN 201837074U
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- heater
- heat exchanger
- exchanger tube
- heater element
- electric
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Abstract
The utility model relates to a safety type heating device for an electric water heater, and discloses a device which can be applied in heating liquid. The safety type heating device comprises a heat exchange pipe, joints welded at two ends of the heat exchange pipe, heating elements and power lines electrically connected with the heating elements, and is characterized in that the heating elements are PTC (positive temperature coefficient) thermistors made of ceramics and having temperature control function, are arranged at the exterior of the heat exchange pipe, and are alternatively overlapped with the heat exchange pipes. The safety type heating device not only can realize physical separation of the heating elements and the heated liquid so as to improve insulation reliability, but also effectively avoids overheating phenomenon, is a safe heat source, does not need a temperature controller and a pressure regulating device, and improves the utilization rate of electric energy.
Description
Technical field
The present invention relates to a kind of heater, relate in particular to a kind of heating apparatus of electric water heater.
Background technology
At present, the electric heater mode of heating mainly adopts heater elements such as quartz ampoule, electrothermal tube, resistance wire that liquid is directly heated, and the resistance that utilizes water body itself to be had adopts anti-electric wall technology, realizes electric insulation.Anti-electric wall can intercept the issuable electric leakage of electric heater itself, also can intercept because of ground wire electrification or the charged security threat that shower person is brought of water pipe, but can't avoid directly contacting the middle electricity possibility that electric heater causes because of human body.Simultaneously because the resistance value of heater elements such as quartz ampoule, electrothermal tube, resistance wire is unadjustable, the height that can only come regulation voltage by the attemperating unit and the regulator in the external world, with control caloric value what.
Summary of the invention
The object of the present invention is to provide a kind of electric heater safety-type heater, it not only can be realized heater element and be heated the physical separation of liquid, improved the reliability of insulation, and effectively avoided superheating phenomenon, it is a kind of safe thermal source, simultaneously do not need temperature controller and regulator, improved the utilization rate of electric energy, can overcome deficiency of the prior art.
Technical scheme of the present invention is as follows:
A kind of electric heater safety-type heater, comprise heat exchanger tube and be welded on the joint at heat exchanger tube two ends, heater element and the power line that is electrically connected with it, it is characterized in that: described heater element is by the PTC with temperature control action of ceramic making (positive temperature coefficient) thermistor, heater element is positioned at the outside of heat exchanger tube, and heater element is alternate with heat exchanger tube stacked.
The every two adjacent one-levels that connect power supply of described heater element, the multi-disc heater element is in parallel to be used.
Described heater element adopts heat-conducting glue to closely bond on heat exchanger tube electric insulation between heater element and heat exchanger tube.
Described heat exchanger tube is flat and is the one extrusion modling, and heat exchanger tube inside is provided with some runners side by side.
A kind of electric heater of the present invention heater element and heat exchanger tube physical isolation of safety-type heater, and heater element and the complete electrical separation of heating liquid have improved the reliability of insulation.
A kind of electric heater of the present invention adopts the PTC with temperature control action (positive temperature coefficient) thermistor of ceramic making with the heater element of safety-type heater, has the temperature control action, when being elevated to its curie point, the heater temperature just no longer heats up, and resistance sharply increases, the electric current that passes through diminishes, power output is also very little, can not produce superheating phenomenon, is a kind of safe thermal source.
A kind of electric heater of the present invention is with the every two adjacent one-levels that connect power supply of the heater element of safety-type heater, the multi-disc heater element is in parallel to be used, the power of how much regulating by direct adjusting PTC heating piece is exported, and does not need temperature controller and regulator, has improved the utilization rate of electric energy.
Description of drawings
Fig. 1 is the structural representation of a kind of electric heater of the present invention with the safety-type heater.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the profile of A-A among Fig. 1.
The specific embodiment
For being illustrated more clearly in content of the present invention, be further described below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of electric heater comprises heat exchanger tube (2) with the safety-type heater and is welded on the joint (1) at heat exchanger tube (2) two ends, heater element (3) and the power line (4) that is electrically connected with it, heater element (3) is by the PTC with temperature control action of ceramic making (positive temperature coefficient) thermistor, heater element (3) is positioned at the outside of heat exchanger tube (2), and heater element (3) and heat exchanger tube (2) are alternate stacked.
The every two adjacent one-levels that connect power supply of heater element (3), multi-disc heater element (3) is in parallel to be used.
Heater element (3) adopts heat-conducting glue to closely bond on heat exchanger tube (2) electric insulation between heater element (3) and heat exchanger tube (2).
As shown in Figure 3, heat exchanger tube (2) is flat and is the one extrusion modling, and heat exchanger tube (2) inside is provided with some runners (2.1) side by side.
The foregoing description can not be thought limiting the scope of the invention; change or improvement that those skilled in the art make based on technical scheme of the present invention or means; as change the connected mode etc. of the number of plies at the folding position of connector and length, change heater element, all should fall within the protection domain of claim of the present invention.
Claims (4)
1. electric heater safety-type heater, comprise heat exchanger tube (2) and be welded on the joint (1) at heat exchanger tube (2) two ends, heater element (3) and the power line (4) that is electrically connected with it, it is characterized in that: described heater element (3) is the PTC thermistor by the positive temperature coefficient with temperature control action of ceramic making, heater element (3) is positioned at the outside of heat exchanger tube (2), and heater element (3) and heat exchanger tube (2) are alternate stacked.
2. a kind of electric heater safety-type heater according to claim 1 is characterized in that: the every two adjacent one-levels that connect power supply of described heater element (3), multi-disc heater element (3) is in parallel to be used.
3. a kind of electric heater safety-type heater according to claim 1 is characterized in that: described heater element (3) adopts heat-conducting glue to closely bond on heat exchanger tube (2) electric insulation between heater element (3) and heat exchanger tube (2).
4. a kind of electric heater safety-type heater according to claim 1 is characterized in that: described heat exchanger tube (2) is flat and is the one extrusion modling, and heat exchanger tube (2) inside is provided with some runners (2.1) side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205414369U CN201837074U (en) | 2010-09-18 | 2010-09-18 | Safety type heating device for electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205414369U CN201837074U (en) | 2010-09-18 | 2010-09-18 | Safety type heating device for electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201837074U true CN201837074U (en) | 2011-05-18 |
Family
ID=44007183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205414369U Expired - Fee Related CN201837074U (en) | 2010-09-18 | 2010-09-18 | Safety type heating device for electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201837074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807170A (en) * | 2015-05-08 | 2015-07-29 | 华能无锡电热器材有限公司 | Short-circuiting electric heater |
| CN105909791A (en) * | 2016-07-06 | 2016-08-31 | 上海衡拓液压控制技术有限公司 | Vacuum sealing joint for low-temperature tubular heating tube |
-
2010
- 2010-09-18 CN CN2010205414369U patent/CN201837074U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807170A (en) * | 2015-05-08 | 2015-07-29 | 华能无锡电热器材有限公司 | Short-circuiting electric heater |
| CN105909791A (en) * | 2016-07-06 | 2016-08-31 | 上海衡拓液压控制技术有限公司 | Vacuum sealing joint for low-temperature tubular heating tube |
| CN105909791B (en) * | 2016-07-06 | 2018-07-10 | 上海衡拓液压控制技术有限公司 | Low temperature tubular heating pipes vacuum sealing joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20140918 |
|
| EXPY | Termination of patent right or utility model |