CN203761601U - Electric heating rod - Google Patents
Electric heating rod Download PDFInfo
- Publication number
- CN203761601U CN203761601U CN201420114117.8U CN201420114117U CN203761601U CN 203761601 U CN203761601 U CN 203761601U CN 201420114117 U CN201420114117 U CN 201420114117U CN 203761601 U CN203761601 U CN 203761601U
- Authority
- CN
- China
- Prior art keywords
- conductor wire
- rod
- wire rod
- temperature resistance
- high temperature
- 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 an electric heating rod which comprises a casing, and a first conductor wire rod, a second conductor wire rod, a tube sheath and a high-temperature resistance wire arranged in the casing, wherein the length of the first conductor wire rod is greater than that of the second conductor wire rod, the tube sheath wraps the first conductor wire rod, the high-temperature resistance wire is uniformly wound around the tube sheath, one end of the high-temperature resistance wire is connected to the tail of the first conductor wire rod via welding, and the other end of the high-temperature resistance wire is connected to the tail of the second conductor wire rod via welding. The casing is filled with crystallized magnesium oxide, the external surface of the casing is wrapped in an insulating layer which is made of a high-frequency insulating ceramic material, and a back-up ring is arranged outside the insulating layer. Thus, the conductor wire rods can make firm contact with the resistance wire, sparking and heating due to contact failure between the conductor wire rods and the resistance wire are prevented, and the service life of the electric heating rod is fundamentally improved.
Description
Technical field
The utility model relates to a kind of electric heater unit.
Background technology
Two conductor wire rods of original electrically heated rod are all through the support bracket fastened centre of resistance wire, this form is difficult to even conductor wire rod firmly not to be welded with resistance wire, can only adopt contact laminating, in addition because two electrically heated rods are in the support bracket fastened centre of resistance wire, because electric clearance is less each other, having limited conductor wire rod can only run business into particular one, can not do thick, limited the ampacity of eduction rod, especially powerful heating rod is difficult to realize more, its fatal shortcoming is contact rod and the loose contact of silk connecting portion, normal existence seemingly contacts non-contacting phenomenon, cause contact site sparking, heating, useful life is shorter, short several days, long some months.
And scrappage is large in process of production, useful life is short for existing heating rod, and the length of service time is very unstable, when heating rod is high-power, contact rod because of sectional area little, ampacity is inadequate, more can not meet the requirement of making high-power heating rod.
Utility model content
The purpose of this utility model is to provide a kind of electrically heated rod, and contact rod can be contacted securely with heating wire, prevent rod with silk strike sparks, generate heat because of loose contact, fundamentally improve the useful life of heating rod.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of electrically heated rod, comprise shell, wherein, in described shell, be provided with the first conductor wire rod, the second conductor wire rod, tube boot and high temperature resistance silk, the length of described the first conductor wire rod is greater than the length of the second conductor wire rod, it is outside that described tube boot is coated on described the first conductor wire rod, described high temperature resistance silk uniform winding is on tube boot, its one end is welded to connect the afterbody at described the first conductor wire rod, the other end is welded to connect at the second contact rod afterbody, the first described conductor wire rod is equipped with groove with the afterbody of the second conductor wire rod, described high temperature resistance silk two ends are built in described groove, the internal diameter of described groove equates with the external diameter of described high temperature resistance silk, in described shell, be filled with crystal magnesium oxide, the insulating barrier of the coated one deck of described outer surface of outer cover taking iso lantite as material, described insulating barrier is provided with back-up ring outward.
Above-mentioned a kind of electrically heated rod, wherein, described tube boot is taking magnesium oxide as material.The beneficial effects of the utility model are:
In the middle of middle tube boot, only has a conductor wire rod, two conductor wire rods of front end separately, guarantee the rational electric clearance of having in electrically heated rod, solve up hill and dale the contradiction in single-ended heating rod contact rod and heating wire loop, ensure that powerful electrically heated rod product quality is unaffected, effectively extended the useful life of heating rod.
The first conductor wire rod is equipped with groove with the afterbody of the second conductor wire rod, described high temperature resistance silk two ends are built in described groove after compacting firm welding again, guarantee that resistance wire fully contacts and is integrated with contact rod, stop the phenomenon such as sparking, heating producing because of loose contact, the useful life of improving widely electrically heated rod.
Insulating barrier is provided with back-up ring outward, further electrically heated rod is reinforced, safe and reliable.
Brief description of the drawings
Fig. 1 is the utility model structure chart
Fig. 2 is the cutaway view of the utility model A portion
Embodiment
By specific embodiment, embodiment of the present utility model is described in further detail below.
As shown in the figure, a kind of electrically heated rod, comprise shell 1, wherein, in described shell 1, be provided with the first conductor wire rod 2, the second conductor wire rod 3, tube boot 4 and high temperature resistance silk 5, the length of described the first conductor wire rod 2 is greater than the length of the second conductor wire rod 3, described tube boot 4 is taking magnesium oxide as material, described tube boot 4 is coated on described the first conductor wire rod 2 outsides, described high temperature resistance silk 3 uniform winding are on tube boot 4, its one end is welded to connect the afterbody at described the first conductor wire rod 2, the other end is welded to connect at the second contact rod 3 afterbodys, the first described conductor wire rod 2 and the afterbody of the second conductor wire rod 3 are equipped with groove 6, described high temperature resistance silk 5 two ends are built in respectively in described groove 6, the inner diameter d of described groove 6 equates with the outer diameter D of described high temperature resistance silk 5, in described shell 1, be filled with crystal magnesium oxide 7, the insulating barrier 8 of the coated one deck of described shell 1 outer surface taking iso lantite as material, the outer back-up ring 9 that is provided with of described insulating barrier 8.
In the middle of middle tube boot, only has a conductor wire rod, two conductor wire rods of front end separately, guarantee the rational electric clearance of having in electrically heated rod, solve up hill and dale the contradiction in single-ended heating rod contact rod and heating wire loop, ensure that powerful electrically heated rod product quality is unaffected, effectively extended the useful life of heating rod.
The first conductor wire rod is equipped with groove with the afterbody of the second conductor wire rod, described high temperature resistance silk two ends are built in described groove after compacting firm welding again, guarantee that resistance wire fully contacts and is integrated with contact rod, stop the phenomenon such as sparking, heating producing because of loose contact, the useful life of improving widely electrically heated rod.
Insulating barrier is provided with back-up ring outward, further electrically heated rod is reinforced, safe and reliable.
Here description of the present utility model and application is illustrative; not want scope of the present utility model to limit in the above-described embodiments; therefore, the utility model is not subject to the restriction of the present embodiment, and the technical scheme that any employing equivalence replacement obtains is all in the scope of the utility model protection.
Claims (2)
1. an electrically heated rod, comprise shell, it is characterized by, in described shell, be provided with the first conductor wire rod, the second conductor wire rod, tube boot and high temperature resistance silk, the length of described the first conductor wire rod is greater than the length of the second conductor wire rod, it is outside that described tube boot is coated on described the first conductor wire rod, described high temperature resistance silk uniform winding is on tube boot, its one end is welded to connect the afterbody at described the first conductor wire rod, the other end is welded to connect at the second contact rod afterbody, the first described conductor wire rod is equipped with groove with the afterbody of the second conductor wire rod, described high temperature resistance silk two ends are built in described groove, the internal diameter of described groove equates with the external diameter of described high temperature resistance silk, in described shell, be filled with crystal magnesium oxide, the insulating barrier of the coated one deck of described outer surface of outer cover taking iso lantite as material, described insulating barrier is provided with back-up ring outward.
2. a kind of electrically heated rod as claimed in claim 1, is characterized by, and described tube boot is taking magnesium oxide as material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114117.8U CN203761601U (en) | 2014-03-13 | 2014-03-13 | Electric heating rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114117.8U CN203761601U (en) | 2014-03-13 | 2014-03-13 | Electric heating rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203761601U true CN203761601U (en) | 2014-08-06 |
Family
ID=51256828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420114117.8U Expired - Fee Related CN203761601U (en) | 2014-03-13 | 2014-03-13 | Electric heating rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203761601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211375A (en) * | 2016-08-29 | 2016-12-07 | 镇江市三维电加热器有限公司 | Resistance wire in electric heating tube and contact rod attachment structure |
-
2014
- 2014-03-13 CN CN201420114117.8U patent/CN203761601U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211375A (en) * | 2016-08-29 | 2016-12-07 | 镇江市三维电加热器有限公司 | Resistance wire in electric heating tube and contact rod attachment structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20190313 |