CN202218426U - Electric heating coil - Google Patents
Electric heating coil Download PDFInfo
- Publication number
- CN202218426U CN202218426U CN2011203227625U CN201120322762U CN202218426U CN 202218426 U CN202218426 U CN 202218426U CN 2011203227625 U CN2011203227625 U CN 2011203227625U CN 201120322762 U CN201120322762 U CN 201120322762U CN 202218426 U CN202218426 U CN 202218426U
- Authority
- CN
- China
- Prior art keywords
- electric heating
- heating coil
- coil body
- protection box
- wall
- 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)
- General Induction Heating (AREA)
Abstract
The utility model provides an electric heating coil which comprises an electric heating coil body and a lead. A lead protective box is sealed and fixedly connected on the outer wall of the electric heating coil body. The electric heating coil has the advantages that the lead protective box is directly sealed and fixedly connected on the outer wall of the electric heating coil body, the structure is simple, internal short circuit is avoided, frequent breakdown maintenance is not required, and normal heating is guaranteed.
Description
Technical field
The utility model relates to a kind of firing equipment, relates in particular to a kind of electric heating coil.
Background technology
Electric heating coil like ceramic electrical gas ket, mica sheet electric heating coil, is the firing equipment commonly used of injection molding machine, blow moulding machine, plastic processing machinery, foundry goods, hot flow path etc.; But its structure comprises the electric heating coil body and the pilot protection box of external lead wire, and the electric heating coil body coils " C " shape usually, and the electric heating coil body is with clamping ring outward; Clamping ring is very thin usually, is welded with the pilot protection box on its outer wall, and the pilot protection box can not seal fully; Problem is, clamping ring is sleeved on the electric heating coil body more loaded down with trivial details, and; When the occasion that electric heating coil has conductive liquid to splash at hot flow path, nozzle etc. heated, conductive liquid can infiltrate the pilot protection box, and then infiltrated the electric heating coil body interior; Cause internal short-circuit, can't normal heating, shut-down (breakdown) mainteance frequently.
The utility model content
The technical problem that the utility model solves is, a kind of electric heating coil is provided, and is simple in structure, avoided internal short-circuit, need not shut-down (breakdown) mainteance frequently, guaranteed normal heating.
The technical scheme that the utility model adopts is:
A kind of electric heating coil comprises electric heating coil body and lead-in wire, the said electric heating coil body outer wall leaded protection box that is sealedly and fixedly connected.
Further, said pilot protection box directly is welded on electric heating coil body outer wall.
Further, said pilot protection box directly and electric heating coil body integrally casting form.
The beneficial effect of the utility model is:
The utility model is directly at the electric heating coil body outer wall leaded protection box that is sealedly and fixedly connected, and is simple in structure, avoided internal short-circuit, need not shut-down (breakdown) mainteance frequently, guaranteed normal heating.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Embodiment:
Shown in accompanying drawing, a kind of electric heating coil comprises electric heating coil body 1 and lead-in wire 2, the said electric heating coil body 1 outer wall leaded protection box 3 that is sealedly and fixedly connected.
Further, the pilot protection box directly is welded on electric heating coil body outer wall.
Further, the pilot protection box directly and electric heating coil body integrally casting form.
The selection of the above-mentioned mode with pilot protection box sealing and fixing of the present invention needs decide according to the concrete condition of production, when electric heating coil body superhigh temperature resistant, can be suitable for batch process through casting with the moulding of pilot protection box; Otherwise, had better adopt modes such as argon arc welding, sealing effectiveness is fine equally.
Claims (3)
1. an electric heating coil comprises electric heating coil body and lead-in wire, it is characterized in that: the said electric heating coil body outer wall leaded protection box that is sealedly and fixedly connected.
2. electric heating coil as claimed in claim 1 is characterized in that: said pilot protection box directly is welded on electric heating coil body outer wall.
3. electric heating coil as claimed in claim 1 is characterized in that: said pilot protection box directly and electric heating coil body integrally casting form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203227625U CN202218426U (en) | 2011-08-31 | 2011-08-31 | Electric heating coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203227625U CN202218426U (en) | 2011-08-31 | 2011-08-31 | Electric heating coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202218426U true CN202218426U (en) | 2012-05-09 |
Family
ID=46017648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203227625U Expired - Fee Related CN202218426U (en) | 2011-08-31 | 2011-08-31 | Electric heating coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202218426U (en) |
-
2011
- 2011-08-31 CN CN2011203227625U patent/CN202218426U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20120831 |