CN2141158Y - Flat-screw electric-heating element - Google Patents
Flat-screw electric-heating element Download PDFInfo
- Publication number
- CN2141158Y CN2141158Y CN 92221482 CN92221482U CN2141158Y CN 2141158 Y CN2141158 Y CN 2141158Y CN 92221482 CN92221482 CN 92221482 CN 92221482 U CN92221482 U CN 92221482U CN 2141158 Y CN2141158 Y CN 2141158Y
- Authority
- CN
- China
- Prior art keywords
- heating element
- electric heating
- utility
- model
- flat
- 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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- Resistance Heating (AREA)
Abstract
The utility model relates to a flat-screw electric-heating element, comprising a lead line, a leading-out terminal, and heating wires; the heating wires are wound along the helical axis direction of a flat band with a rectangular section; the wide and the narrow surfaces of the flat band are respectively vertical and parallel with the axial direction; under the condition of using the identical materials, the surface load of the electric heating element is reduced, and the heat exchange surface of the electric heating element is increased; therefore, the service life of the electric heating element is long, the materials input is few under the same load, and the cost is reduced; the utility model can completely replace an electric heating element made of circular heating wires, and the utility model is suitable for various electric heating devices.
Description
The utility model relates to a kind of electric heating element, and particularly a kind of flat helical electric heating element belongs to electric heating device.
Up to now, electric heater unit is a lot, all generally adopts the resistance-type electric heating element.Existing resistance-type electric heating element is to adopt the circular heating wire of high value to make, and the heating area of circular heating wire is little, surface loading is big, and the life-span is short, the cost height.People's development and design has been arranged for this reason many improved electric heating elements, as " cellular electric heating element " (Chinese patent application number for 91230-582.7) " sheet electric heating element " (China Patent No. is 88206914.4) etc., but not to be its range of application narrow is exactly complex structure for these electric heating elements, the cost height.
The purpose of this utility model provides the flat helical electric heating element that a kind of cost is low, the life-span is long.
The utility model is achieved in that it comprises lead-out wire, exit, heating wire, to be that to adopt by sectional area be rectangular bandlet form along the axial screw coiling of helical axis heating wire, wide of bandlet perpendicular to the spiral shell of helical axis to, narrow face be parallel to helical axis axially.
Electric heating element of the present utility model is because the employing sectional area is that rectangular bandlet helically coiling forms, so under the identical parameters situation (as identical material, resistance, length, sectional area, temperature etc.), its surface loading than the electric heating element that circular heating wire is made reduces greatly, thereby prolonged the life-span of heating wire, otherwise, if keep load constant, then its sectional area will reduce.Under identical service condition, the material of using than the electric heating element made from circular heating wire lacks, and cost just reduces like this, or the both has concurrently, and can replace circular heating wire fully.
Below in conjunction with accompanying drawing the utility model is done a step explanation.
Fig. 1 is a structural representation of the present utility model.
As shown in Figure 1, with commercially available sectional area is that narrow average row of rectangular bandlet heating wire 3 is close on the coiling axial plane and (do not mark axle among the figure), then wide of rectangle bandlet heating wire 3 being clipped with anchor clamps makes its maintenance vertical with axial plane, like this, as long as the axle carry out the spirality coiling once rotating, the coiling number of turns how much be to decide as required.Certainly, above-mentioned coiling also can be removed axle, directly axially carrying out artificial coiling by above-mentioned winding process can reach helically coiling too in employing, lead-out wire 1, exit 2 is welded on respectively on the heating wire 3 after coiling is good again, has so just made helical electric heating element.
Claims (1)
1, a kind of flat helical electric heating element, comprise lead-out wire 1, exit 2, heating wire 3, it is characterized in that described heating wire 3 is that to be rectangular bandlet by sectional area form along the axial screw coiling of helical axis, wide of bandlet is perpendicular to axial direction, and the narrow face of bandlet is parallel to axially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221482 CN2141158Y (en) | 1992-10-19 | 1992-10-19 | Flat-screw electric-heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221482 CN2141158Y (en) | 1992-10-19 | 1992-10-19 | Flat-screw electric-heating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2141158Y true CN2141158Y (en) | 1993-08-25 |
Family
ID=33768271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92221482 Expired - Fee Related CN2141158Y (en) | 1992-10-19 | 1992-10-19 | Flat-screw electric-heating element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2141158Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327664A (en) * | 2013-06-30 | 2013-09-25 | 张秀英 | Flat heating wire |
| CN103704966A (en) * | 2013-12-29 | 2014-04-09 | 苏州市峰之火数码科技有限公司 | Insulating mobile phone case |
| CN105413075A (en) * | 2015-07-28 | 2016-03-23 | 张任 | Portable selective heating air purifier and temperature control method |
-
1992
- 1992-10-19 CN CN 92221482 patent/CN2141158Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327664A (en) * | 2013-06-30 | 2013-09-25 | 张秀英 | Flat heating wire |
| CN103704966A (en) * | 2013-12-29 | 2014-04-09 | 苏州市峰之火数码科技有限公司 | Insulating mobile phone case |
| CN105413075A (en) * | 2015-07-28 | 2016-03-23 | 张任 | Portable selective heating air purifier and temperature control method |
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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 |