CN204795656U - Cylindricality PTC electric heater - Google Patents
Cylindricality PTC electric heater Download PDFInfo
- Publication number
- CN204795656U CN204795656U CN201520551795.5U CN201520551795U CN204795656U CN 204795656 U CN204795656 U CN 204795656U CN 201520551795 U CN201520551795 U CN 201520551795U CN 204795656 U CN204795656 U CN 204795656U
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- China
- Prior art keywords
- electrode
- ptc
- tubular structure
- external electrode
- cylindricality
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- Expired - Fee Related
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Abstract
The utility model discloses a cylindricality PTC electric heater, it includes the outer electrode of inner electrode and the tubular structure of tubular structure and sets up the PTC ceramic pipe of the tubular structure between inner electrode and outer electrode, have the first fracture of electrode length direction in running through on the inner electrode and make the inner electrode tight on the inner wall of PTC ceramic pipe lower of elastic force, have the second fracture that runs through outer electrode length direction on the outer electrode and make the outer electrode hold tightly on the outer wall of PTC ceramic pipe under the power of tightening up, the peripheral cover of outer electrode has the thermal insulation body. After adopting foretell structure, because the PTC ceramic pipe of inner electrode, outer electrode and the tubular structure of the tubular structure that sets up makes and assembles ten fens convenient and fast from this, the assembly reliability improves greatly, and the advantage of its tubular structure itself makes and has fine bending resistance simultaneously, the stress concentration phenomenon can not appear, has fine mechanical properties, and its bulk strength obtains very big improvement.
Description
Technical field
The utility model 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 problems to be solved in the utility model 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 utility model, 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 the utility model cylindricality PTC electric heater;
Fig. 2 is the cross section structure schematic diagram of the utility model first embodiment;
Fig. 3 is the cross section structure schematic diagram of the utility model second embodiment;
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 utility model is described in further detail.
Embodiment one:
Cylindricality PTC electric heater of the present utility model, 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 utility model, 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 |
|---|---|---|---|
| CN201520551795.5U CN204795656U (en) | 2015-07-28 | 2015-07-28 | Cylindricality PTC electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520551795.5U CN204795656U (en) | 2015-07-28 | 2015-07-28 | Cylindricality PTC electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204795656U true CN204795656U (en) | 2015-11-18 |
Family
ID=54535619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520551795.5U Expired - Fee Related CN204795656U (en) | 2015-07-28 | 2015-07-28 | Cylindricality PTC electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204795656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072723A (en) * | 2015-07-28 | 2015-11-18 | 江苏源之翼电气有限公司 | Cylindrical PTC electric heater |
-
2015
- 2015-07-28 CN CN201520551795.5U patent/CN204795656U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072723A (en) * | 2015-07-28 | 2015-11-18 | 江苏源之翼电气有限公司 | Cylindrical PTC electric heater |
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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: 20151118 Termination date: 20170728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |