CN2607710Y - Low-temp heating cable - Google Patents
Low-temp heating cable Download PDFInfo
- Publication number
- CN2607710Y CN2607710Y CN 03220374 CN03220374U CN2607710Y CN 2607710 Y CN2607710 Y CN 2607710Y CN 03220374 CN03220374 CN 03220374 CN 03220374 U CN03220374 U CN 03220374U CN 2607710 Y CN2607710 Y CN 2607710Y
- Authority
- CN
- China
- Prior art keywords
- screen
- restrictive coating
- busbar
- heating cable
- ribbon heater
- 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 - Lifetime
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Abstract
The utility model relates to an electric heating device, in particular to a heating cable. The conductive bus line is covered in turn with the insulation, the shield and the sheath; the conductive bus line is formed from a plurality of conductors through winding, each plated with tin or nickel on surfaces; a metal braid layer is arranged between the shield and the sheath; ends of the conductors of the conductive bus line are connected in turn to form a serial circuit The utility model has the features of long lifetime and extensive application scope.
Description
Technical field
The utility model belongs to a kind of electric heater unit, refers in particular to a kind of heating cable.
Background technology
Parallel plastic tape, tandem plastic tape and 3 kinds of forms of tandem MI heating cable are divided in existing permanent power ribbon heater.Wherein, the plastics ribbon heater generally is extruded into core insulation layer and various restrictive coating with plastic pellet by the high temperature plastics plastic extruding machine, and it only is applicable to that generally medium safeguards that temperature is at the pipeline below 200 ℃, tank body tracing thermal-insulating.When the medium holding temperature is higher than more than 200 ℃, or require limit heating power, limit pipeline with the high-temperature steam pipeline purging, this moment is owing to the temperature that plastic insulating layer, restrictive coating near the position, ribbon heater can reach more than 280 ℃ very soon makes plastics softening, and along with the energising and the continuity of pipeline purging, temperature rises higher and higher, plastics become fluidised form shape gradually, and insulating barrier and restrictive coating damage, and cause ribbon heater short circuit, ground connection and damage.
The utility model content
The purpose of this utility model is to provide a kind of good heat conductivity, electrical insulation properties good, and product softness, I﹠M be the low temperature heating cable easily.
Its main technical schemes is: screen and restrictive coating that insulating barrier, a shielding action are arranged outside busbar successively.
Busbar is reeled by multiple conducting wires and is formed, and on the surface of every lead tin coating or nickel coating is arranged respectively; Between screen and restrictive coating, wire braid is arranged.Described screen is aluminium foil or braid wiry.
The mutual short circuit of one end of busbar, formation is connected in series.For further improving insulation effect, can between wire braid and restrictive coating, insulating barrier be set.
The utility model has the advantages that owing between insulating barrier and restrictive coating, be provided with the screen of shielding action, make this product radiation must not be arranged, need the occasion that heats again, enlarged this product scope of application applicable to computer central control room etc.; The utility model also has useful life also than other product length, wide adaptability, simplicity of design, characteristics such as easy for installation in addition.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Embodiment
As shown in the figure: screen 3 and restrictive coating 6 that insulating barrier 2, a shielding action are arranged outside busbar 1 successively.Wherein, insulating barrier and restrictive coating have insulation and the effect of protecting cable concurrently.Screen can utilize aluminium foil or braid wiry.
Busbar 1 is reeled by multiple conducting wires and is formed, and on the surface of every lead tin coating or nickel coating is arranged respectively, and purpose zinc-plated or nickel plating is further to improve its heating efficiency; For improving the mechanical strength of cable, between screen and restrictive coating, wire braid can be set, the mutual short circuit of an end of busbar 1, formation is connected in series.For further improving insulation effect, can between wire braid 4 and restrictive coating 6, insulating barrier 5 be set.
Claims (6)
1, low temperature heating cable is characterized in that insulating barrier (2) is arranged successively, plays the screen (3) and restrictive coating (6) of shielding action outside busbar (1).
2, ribbon heater according to claim 1 is characterized in that busbar (1) is formed by the multiple conducting wires coiling, has tin coating or nickel coating respectively on the surface of every lead.
3, ribbon heater according to claim 1 is characterized in that between screen (3) and restrictive coating (6) wire braid (4) being arranged.
4, ribbon heater according to claim 1 is characterized in that the mutual short circuit of an end of busbar (1), and formation is connected in series.
5, ribbon heater according to claim 1 is characterized in that screen (3) is aluminium foil or braid wiry.
6,, it is characterized in that between wire braid (4) and restrictive coating (6), insulating barrier (5) being set according to claim or 1 or 3 described ribbon heaters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220374 CN2607710Y (en) | 2003-03-14 | 2003-03-14 | Low-temp heating cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220374 CN2607710Y (en) | 2003-03-14 | 2003-03-14 | Low-temp heating cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2607710Y true CN2607710Y (en) | 2004-03-24 |
Family
ID=34161860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03220374 Expired - Lifetime CN2607710Y (en) | 2003-03-14 | 2003-03-14 | Low-temp heating cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2607710Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354676A (en) * | 2013-05-31 | 2013-10-16 | 镇江天信电器有限公司 | Improved defrosting heater |
-
2003
- 2003-03-14 CN CN 03220374 patent/CN2607710Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354676A (en) * | 2013-05-31 | 2013-10-16 | 镇江天信电器有限公司 | Improved defrosting heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130314 Granted publication date: 20040324 |