CN105072723A - Cylindrical PTC electric heater - Google Patents
Cylindrical PTC electric heater Download PDFInfo
- Publication number
- CN105072723A CN105072723A CN201510448554.2A CN201510448554A CN105072723A CN 105072723 A CN105072723 A CN 105072723A CN 201510448554 A CN201510448554 A CN 201510448554A CN 105072723 A CN105072723 A CN 105072723A
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- electrode
- ptc
- electric heater
- external electrode
- earthenware
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Abstract
The invention discloses a cylindrical PTC electric heater. The electric heater comprises a tubular inner electrode, a tubular outer electrode and a tubular PTC ceramic tube arranged therebetween. The inner electrode is provided with a first fracture in the length direction of the inner electrode, and the inner electrode tightly clings to the inner wall of the PTC ceramic tube via elastic force; the outer electrode is provided with a second fracture in the length direction of the outer electrode, and the outer electrode tightly holds the outer wall of the PTC ceramic tube via tightening force; and the outer electrode is sleeved with an insulated thermal conductor. Due to arrangement of the tubular inner electrode, outer electrode and PTC ceramic tube, assembling is very convenient and rapid, the assembling reliability is greatly improved, advantages of the tubular structures enables high bending resistance, the phenomenon of stress concentration is avoided, the mechanical properties is high, and the total strength is greatly improved.
Description
Technical field
The present invention relates to a kind of electric heater, specifically a kind of cylindricality PTC electric heater.
Background technology
Conventional P TC electric heater, generally comprise PTC earthenware, PTC earthenware is fitted outward after electrode and is drawn by electrode, fill in square tube to compress after PTC earthenware wrap insulate film simultaneously and make, the PTC electric heater of this structure of tradition, because its housing is square structure, bending resistance is poor, and corner easily produces stress point, after thermal change of catching a cold stress raiser easily ftracture, damaged, poor mechanical property, reduces bulk strength, in addition, also there is cooperation difficulty in the limitation of its structure, installation process is complicated, and installation reliability is poor, installs and is inconvenient to wait series of problems.
Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of bulk strength is high, and assembly reliability is high, cylindricality PTC electric heater easy for installation.
In order to solve the problems of the technologies described above, cylindricality PTC electric heater of the present invention, comprise the interior electrode of tubular structure and the external electrode of tubular structure and be arranged on the PTC earthenware of the tubular structure between interior electrode and external electrode, interior electrode has the first fracture of running through interior electrode length direction and interior electrode is adjacent on the inwall of PTC earthenware under elastic force, external electrode has the second fracture of running through external electrode length direction and external electrode is held tightly on the outer wall of PTC earthenware under tightening force, the outer race of external electrode has insulating thermal conductor.
Described insulating thermal conductor is heat conductive insulating earthenware.
Thermal plastic insulation is filled with between described external electrode and heat conductive insulating earthenware.
Described insulating thermal conductor is insulating heat-conductive film, and insulating heat-conductive film outer race has metal tube.
All thermal plastic insulation is filled with between described external electrode and insulating heat-conductive film and between insulating heat-conductive film and metal tube.
Described metal tube periphery is placed with fin.
Described interior electrode and external electrode are drawn respectively by power line.
After adopting above-mentioned structure, due to the PTC earthenware of electrode, external electrode and tubular structure in the tubular structure of setting, make assembling fast very convenient thus, assembly reliability improves greatly, the advantage of its tubular structure itself makes to have good bending resistance simultaneously, there will not be stress concentration phenomenon, have good mechanical property, its bulk strength is greatly improved.
Accompanying drawing explanation
Fig. 1 is the perspective view of cylindricality PTC electric heater of the present invention;
Fig. 2 is the cross section structure schematic diagram of first embodiment of the invention;
Fig. 3 is the cross section structure schematic diagram of second embodiment of the invention;
Fig. 4 is the cross section structure schematic diagram of the A-A of this Fig. 3.
Embodiment
Below in conjunction with the drawings and specific embodiments, cylindricality PTC electric heater of the present invention is described in further detail.
Embodiment one:
Cylindricality PTC electric heater of the present invention, comprise the interior electrode 1 of tubular structure and the external electrode 2 of tubular structure and be arranged on the PTC earthenware 3 of the tubular structure between interior electrode 1 and external electrode 2, interior electrode 1 and external electrode 2 are drawn respectively by power line, interior electrode 1 has the first fracture 4 running through interior electrode length direction, the external diameter of interior electrode 1 is greater than the internal diameter of PTC earthenware 3, interior electrode 1 is made to be adjacent under elastic force on the inwall of PTC earthenware 3 thus, external electrode 2 has the second fracture 5 running through external electrode length direction, the internal diameter of external electrode 2 is less than the external diameter of PTC earthenware 3, external electrode 2 is made to hold tightly under tightening force on the outer wall of PTC earthenware 3 thus, the outer race of said external electrode 2 has insulating thermal conductor, said insulating thermal conductor is heat conductive insulating earthenware 6, thermal plastic insulation is filled with between external electrode 2 and heat conductive insulating earthenware 6.
Embodiment two:
Cylindricality PTC electric heater of the present invention, the PTC earthenware 3 comprising the interior electrode 1 of tubular structure and the external electrode 2 of tubular structure and be arranged between interior electrode 1 and external electrode 2, interior electrode 1 and external electrode 2 are drawn respectively by power line, interior electrode 1 has the first fracture 4 running through interior electrode length direction, the external diameter of interior electrode 1 is greater than the internal diameter of PTC earthenware 3, interior electrode 1 is made to be adjacent under elastic force on the inwall of PTC earthenware 3 thus, external electrode 2 has the second fracture 5 running through external electrode length direction, the internal diameter of external electrode 2 is less than the external diameter of PTC earthenware 3, external electrode 2 is made to hold tightly under tightening force on the outer wall of PTC earthenware 3 thus, the outer race of described external electrode 2 has insulating thermal conductor, said insulating thermal conductor is insulating heat-conductive film 8, insulating heat-conductive film 8 outer race has metal tube 7, metal tube 7 is close on insulating heat-conductive film 8 outer wall, all thermal plastic insulation is filled with between external electrode 2 and insulating heat-conductive film 8 and between insulating heat-conductive film 8 and metal tube 7.Meanwhile, metal tube 7 periphery is placed with fin 9.
Claims (7)
1. a cylindricality PTC electric heater, it is characterized in that: the PTC earthenware (3) comprising the interior electrode (1) of tubular structure and the external electrode (2) of tubular structure and be arranged between interior electrode (1) and external electrode (2), described interior electrode (1) has the first fracture (4) running through interior electrode length direction and interior electrode (1) is adjacent on the inwall of PTC earthenware (3) under elastic force, described external electrode (2) has the second fracture (5) of running through external electrode length direction and external electrode (2) is held tightly on the outer wall of PTC earthenware (3) under tightening force, the outer race of described external electrode (2) has insulating thermal conductor.
2. according to cylindricality PTC electric heater according to claim 1, it is characterized in that: described insulating thermal conductor is heat conductive insulating earthenware (6).
3. according to cylindricality PTC electric heater according to claim 2, it is characterized in that: between described external electrode (2) and heat conductive insulating earthenware (6), be filled with thermal plastic insulation.
4. according to cylindricality PTC electric heater according to claim 1, it is characterized in that: described insulating thermal conductor is insulating heat-conductive film (8), and insulating heat-conductive film (8) outer race has metal tube (7).
5. according to cylindricality PTC electric heater according to claim 4, it is characterized in that: between described external electrode (2) and insulating heat-conductive film (8) and between insulating heat-conductive film (8) and metal tube (7), be all filled with thermal plastic insulation.
6. according to cylindricality PTC electric heater according to claim 4, it is characterized in that: described metal tube (7) periphery is placed with fin (9).
7. according to cylindricality PTC electric heater according to claim 1, it is characterized in that: described interior electrode (1) and external electrode (2) are drawn respectively by power line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448554.2A CN105072723A (en) | 2015-07-28 | 2015-07-28 | Cylindrical PTC electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448554.2A CN105072723A (en) | 2015-07-28 | 2015-07-28 | Cylindrical PTC electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105072723A true CN105072723A (en) | 2015-11-18 |
Family
ID=54501961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510448554.2A Pending CN105072723A (en) | 2015-07-28 | 2015-07-28 | Cylindrical PTC electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105072723A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658046A (en) * | 2018-07-28 | 2018-10-16 | 佛山勤顺科技有限公司 | High-effect ionic pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2487189Y (en) * | 2001-03-30 | 2002-04-17 | 昌锐实业有限公司 | Structure improved constant temperature heater |
| DE102006021730A1 (en) * | 2005-05-20 | 2006-11-23 | Modine Korea Llc., Asan | Vehicle pre-heater, has frames coupled to outer side surfaces of outermost heat radiation fin assemblies, and reinforcing grooves longitudinally formed on contact surfaces of frames and heat radiation fin assemblies |
| CN202918523U (en) * | 2012-08-23 | 2013-05-01 | 苏州新业电子有限公司 | PTC heater |
| CN203537577U (en) * | 2013-05-22 | 2014-04-09 | 苏州新业电子有限公司 | Improved PTC heater for electric automobile |
| CN204795656U (en) * | 2015-07-28 | 2015-11-18 | 江苏源之翼电气有限公司 | Cylindricality PTC electric heater |
-
2015
- 2015-07-28 CN CN201510448554.2A patent/CN105072723A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2487189Y (en) * | 2001-03-30 | 2002-04-17 | 昌锐实业有限公司 | Structure improved constant temperature heater |
| DE102006021730A1 (en) * | 2005-05-20 | 2006-11-23 | Modine Korea Llc., Asan | Vehicle pre-heater, has frames coupled to outer side surfaces of outermost heat radiation fin assemblies, and reinforcing grooves longitudinally formed on contact surfaces of frames and heat radiation fin assemblies |
| CN202918523U (en) * | 2012-08-23 | 2013-05-01 | 苏州新业电子有限公司 | PTC heater |
| CN203537577U (en) * | 2013-05-22 | 2014-04-09 | 苏州新业电子有限公司 | Improved PTC heater for electric automobile |
| CN204795656U (en) * | 2015-07-28 | 2015-11-18 | 江苏源之翼电气有限公司 | Cylindricality PTC electric heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658046A (en) * | 2018-07-28 | 2018-10-16 | 佛山勤顺科技有限公司 | High-effect ionic pipe |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |
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| WD01 | Invention patent application deemed withdrawn after publication |