CN104378854A - Single-end electric heating tube structure with double insulation protection function and manufacturing method thereof - Google Patents
Single-end electric heating tube structure with double insulation protection function and manufacturing method thereof Download PDFInfo
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- CN104378854A CN104378854A CN201410611737.7A CN201410611737A CN104378854A CN 104378854 A CN104378854 A CN 104378854A CN 201410611737 A CN201410611737 A CN 201410611737A CN 104378854 A CN104378854 A CN 104378854A
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- eduction rod
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Abstract
The invention relates to a single-end electric heating tube structure with the double insulation protection function and a manufacturing method of the single-end electric heating tube structure with the double insulation protection function. The single-end electric heating tube with the double insulation protection function comprises an outer tube and an inner assembly part, wherein the inner assembly part comprises two inner tube assemblies, terminals, an inner sleeve, an outer sleeve, a fuse protector and a temperature controller, each inner tube assembly comprises an inner tube, an upper guide-out rod, a lower guide-out rod, a resistance wire, an inner plug and magnesia powder, the upper guide-out rods, the resistance wires and the lower guide-out rods which are all connected well are inserted in the inner tubes so that the inner tube assemblies can be formed, one terminal is connected with one end of the temperature controller, the other end of the temperature controller is connected with the lower guide-out rod of the second inner tube assembly, a protecting middle piece is sleeved with the outer sleeve, and thus the inner assembly part can be formed. The single-end electric heating tube structure has the double insulation protection function and solves the problem that two resistance wires intertwine, cost is saved, the service life of a heater is prolonged, and the temperature resistance level of the product is increased.
Description
Technical field
The invention belongs to electric heating element technical field, particularly relate to single head electric heating tube structure and the manufacture method thereof of the protection of a kind of double insulation.
Background technology
At present, the electric heating element kind on market on electroheat equipment is a lot, especially electric heating tube, the following shortcoming of a product ubiquity related to the present invention as shown in Figure 1:
1, the product of this structure first assembles rear undergauge, in undergauge process, easily causing afterbody sensing unit thermostat (22) and fuse (5), external force is impaired and lost efficacy, so need the protection box (25) using protection thermostat (22) and fuse (5); Guard block takes up space comparatively large, causes efficient heat generation area to reduce, simultaneously protected part temperatures restriction, and product is maximum can load power density decline.
2, owing to completely cutting off by the magnesia powder 8 added between resistance wire (10) and resistance wire (18), filling with undergauge process, the situation that easy generation resistance wire (10) and resistance wire (18) are intertwined, cause short circuit or fracture of wire, especially for the product that resistance wire diameter is less, scrappage is very high.
3, this structure needs the relative position between fixed part and keeps the accessory of resistance wire centralizer more, as part (20), retainer ring (23), magnesium dried bean noodles (24) etc. in ring (12), interior stopper (14), guarantor in guarantor, simultaneously higher to the dimensional tolerance required precision of accessory, so not only because technique is complicated, wayward, easily cause scrapping, also can cause material cost and production cost high.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art existence, and the single head electric heating tube structure providing a kind of double insulation that is cost-saving, the heat efficiency that increases the service life, increases to protect and manufacture method thereof.
The object of the invention is to have come by following technical solution: the single head electric heating tube of this double insulation protection, structure comprises outer tube, interior assembly; Wherein interior assembly comprises pipe assembly, terminal, inner sleeve, outer tube, fuse and thermostat in two groups; Often in group, pipe assembly comprises interior pipe, a upper eduction rod, a lower eduction rod, resistance wire, two interior stoppers and a magnesia powder.Described upper eduction rod, lower eduction rod are connected to resistance wire two ends, the upper eduction rod connected, resistance wire, lower eduction rod are inserted in interior pipe, space magnesia powder between interior pipe and upper eduction rod, resistance wire, lower eduction rod is filled, two ends by interior plug seal, pipe assembly in above Structure composing; By part in guarantor and in protecting ring pipe assembly in two groups is fixed; The two ends of described fuse are connected with terminal respectively, and this fuse and two terminal insertions are in inner sleeve, and one of them terminal is connected with the lower eduction rod of pipe assembly in first group; Another terminal is connected with thermostat one end, and the other end of this thermostat is connected with the lower eduction rod of pipe assembly in second group; Outer tube is enclosed within guarantor on part, assembly in above Structure composing; Interior assembly is inserted in outer tube, between space magnesia powder fill, afterbody end cap sealing, the outer plug seal of head.
As preferably, ring in described guarantor, protect in the shape of part be foliaceous.
The manufacture method of the single head electric heating tube of this double insulation protection, comprises the steps:
1, upper eduction rod, lower eduction rod are connected to resistance wire two ends, the upper eduction rod connected, resistance wire, lower eduction rod are inserted in interior pipe, space magnesia powder between interior pipe and upper eduction rod, resistance wire, lower eduction rod is filled, two ends are by interior plug seal, and in first group prepared by pipe assembly;
2, the same method, upper eduction rod, lower eduction rod are connected to resistance wire two ends, the upper eduction rod connected, resistance wire, lower eduction rod are inserted in interior pipe, space magnesia powder between interior pipe and upper eduction rod, resistance wire, lower eduction rod is filled, two ends are by interior plug seal, and in second group prepared by pipe assembly;
3, above two groups have been prepared in pipe assembly be pressed into semicircle, to ensure when compacting that interior pipe assembly narrowing toward each end is broad in the middle;
4, be pressed into semicircular interior pipe assembly by ring in part in guarantor and guarantor by two groups to fix;
5, the two ends of fuse splicing ear A and terminal B respectively, and this fuse, terminal A and terminal B are inserted in inner sleeve, terminal A is connected with thermostat one end, and the other end of thermostat is connected with terminal C;
6, the lower eduction rod of pipe assembly is connected with terminal B in first group, and in second group, the lower eduction rod of pipe assembly is connected with terminal C;
7, outer tube to be enclosed within guarantor on part;
8, end cap is fixed on outer tube tail end, and to this end undergauge, in above-mentioned preparation being completed, assembly inserts in outer tube, between space magnesia powder fill, the outer plug seal of head;
9, by ring in will protecting, protect in part design be foliaceous, magnesia powder directly can pour into the afterbody to electric heating tube.
Beneficial effect of the present invention is:
1, because every root resistance wire is all be inserted in separately to carry out filling separately in one in pipe, protective effect is served to resistance wire, solves the problem that two resistance wires are intertwined;
2, because interior pipe assembly is filling separately, do not need the problem considering that amplitude is excessive and cause resistance wire to be intertwined, amplitude when can heighten filling as required, increase the density of filling magnesia powder, suppressing often organizing interior pipe assembly simultaneously, increasing magnesia powder density, improve insulation property and capacity of heat transmission, add the heat efficiency, extend the useful life of heater simultaneously, increase the temperature resistant grade of product;
3, by the transformation to afterbody thermostat and fuse operator guards, reduce the space that guard block occupies, increase efficient heat generation area; reduce guard block temperature limiting simultaneously; product is maximum can load power density be increased, and has both saved cost, and has too increased the heat efficiency.
Accompanying drawing explanation
Fig. 1 is existing electric heating tube structural representation.
Fig. 2 is electric heating tube structural representation of the present invention.
Fig. 3 is assembly structural representation in electric heating tube of the present invention.
Fig. 4 is pipe modular construction schematic diagram in electric heating tube of the present invention.
Fig. 5 is the side structure schematic diagram of Fig. 3.
Label in accompanying drawing is respectively: 1, end cap; 2, outer tube; 3, terminal A; 4, inner sleeve; 5, fuse; 6, outer tube; 7, terminal B; 8, magnesia powder; 9, lower eduction rod; 10, resistance wire; 11, interior pipe; 12, Bao Zhonghuan; 13, upper eduction rod; 14, interior stopper; 15, outer stopper; 16, upper eduction rod; 17, interior pipe; 18, resistance wire; 19, lower eduction rod; 20, part in protecting; 21, terminal C; 22, thermostat; 23, retainer ring; 24, magnesium dried bean noodles; 25, box is protected.
Embodiment
Below in conjunction with accompanying drawing, detailed introduction is done to the present invention:
As shown in accompanying drawing 2 to 5, structure of the present invention comprises outer tube 2, interior assembly (as shown in Figure 3); Wherein interior assembly comprises pipe assembly in two groups, terminal, inner sleeve 4, outer tube 6, fuse 5 and thermostat 22; In first group, pipe assembly comprises interior pipe 11, upper eduction rod 13, lower eduction rod 9, resistance wire 10, interior stopper 14 and magnesia powder 8; In second group, pipe assembly comprises interior pipe 17, upper eduction rod 16, lower eduction rod 19, resistance wire 18, interior stopper 14 and magnesia powder 8.It is characterized in that: described upper eduction rod 13, lower eduction rod 9 are connected to resistance wire 10 two ends, the upper eduction rod 13 connected, resistance wire 10, lower eduction rod 9 are inserted in interior pipe 11, space magnesia powder 8 between interior pipe 11 and upper eduction rod 13, resistance wire 10, lower eduction rod 9 is filled, two ends are sealed by interior stopper 14, pipe assembly (as shown in Figure 4) in above Structure composing first group; Upper eduction rod 16, lower eduction rod 19 are connected to resistance wire 18 two ends, the upper eduction rod 16 connected, resistance wire 18, lower eduction rod 19 are inserted in interior pipe 17, space magnesia powder 8 between interior pipe 17 and upper eduction rod 16, resistance wire 18, lower eduction rod 19 is filled, two ends are sealed by interior stopper 14, pipe assembly in above Structure composing second group; By part 20 in guarantor and in protecting ring 12 pipe assembly in two groups is fixed; The two ends of described fuse 5 are connected with terminal A3 and terminal B7 respectively, and this fuse 5, terminal A3 and terminal B7 are inserted in inner sleeve 4, terminal B7 is connected with the lower eduction rod 9 of pipe assembly in first group, terminal A3 is connected with thermostat 22 one end, the other end of this thermostat 22 is connected with the lower eduction rod 19 of pipe assembly in second group, outer tube 6 is enclosed within guarantor on part 20, assembly in above Structure composing; Interior assembly is inserted in outer tube 2, between space magnesia powder 8 fill, at the bottom of afterbody, cap 1 seals, and the outer stopper 15 of head seals.
In described guarantor, in ring 12, guarantor, the shape of part 20 is foliaceous, and when making filling, magnesia powder 8 can arrive bottom electrothermal tube, and ensures the packed density of magnesia powder 8.
Prepare the method for electric heating tube, comprise the steps:
1, upper eduction rod 13, lower eduction rod 9 are connected to resistance wire 10 two ends, the upper eduction rod 13 connected, resistance wire 10, lower eduction rod 9 are inserted in interior pipe 11, space magnesia powder 8 between interior pipe 11 and upper eduction rod 13, resistance wire 10, lower eduction rod 9 is filled, two ends are sealed by interior stopper 14, and in first group prepared by pipe assembly;
2, the same method, upper eduction rod 16, lower eduction rod 19 are connected to resistance wire 18 two ends, the upper eduction rod 16 connected, resistance wire 18, lower eduction rod 19 are inserted in interior pipe 17, space magnesia powder 8 between interior pipe 17 and upper eduction rod 16, resistance wire 18, lower eduction rod 19 is filled, two ends are sealed by interior stopper 14, and in second group prepared by pipe assembly;
3, above two groups have been prepared in pipe assembly be pressed into semicircle, to ensure when compacting that interior pipe assembly narrowing toward each end is broad in the middle;
4, be pressed into semicircular interior pipe assembly by ring 12 in part 20 in guarantor and guarantor by two groups to fix;
5, the two ends of fuse 5 splicing ear A3 and terminal B7 respectively, and this fuse 5, terminal A3 and terminal B7 are inserted in inner sleeve 4, terminal A3 is connected with thermostat 22 one end, and the other end of thermostat 22 is connected with terminal C21.
6, the lower eduction rod 9 of pipe assembly is connected with terminal B7 in first group, and in second group, the lower eduction rod 19 of pipe assembly is connected with terminal C21;
7, outer tube 6 to be enclosed within guarantor on part 20.
8, end cap 1 is fixed on outer tube 2 tail end, and to this end undergauge, in above-mentioned preparation being completed, assembly inserts in outer tube 2, between space magnesia powder 8 fill, the outer stopper 15 of head seals.
9, by designing in foliaceous by part 20 in ring in guarantor 12, guarantor, magnesia powder 8 directly can pour into the afterbody to electric heating tube.
Be understandable that, for a person skilled in the art, technical scheme of the present invention and inventive concept be equal to and replace or change the protection range that all should belong to the claim appended by the present invention.
Claims (3)
1. a single head electric heating tube for double insulation protection, comprises outer tube (2), interior assembly; Wherein interior assembly comprises pipe assembly in two groups, terminal, inner sleeve (4), outer tube (6), fuse (5) and thermostat (22); In first group, pipe assembly comprises interior pipe (11), upper eduction rod (13), lower eduction rod (9), resistance wire (10), interior stopper (14) and magnesia powder (8); In second group, pipe assembly comprises interior pipe (17), upper eduction rod (16), lower eduction rod (19), resistance wire (18), interior stopper (14) and magnesia powder (8); It is characterized in that: described upper eduction rod (13), lower eduction rod (9) are connected to resistance wire (10) two ends, the upper eduction rod (13) connected, resistance wire (10), lower eduction rod (9) are inserted in interior pipe (11), space magnesia powder (8) between interior pipe (11) and upper eduction rod (13), resistance wire (10), lower eduction rod (9) is filled, two ends are sealed by interior stopper (14), pipe assembly in above Structure composing first group; Upper eduction rod (16), lower eduction rod (19) are connected to resistance wire (18) two ends, the upper eduction rod (16) connected, resistance wire (18), lower eduction rod (19) are inserted in interior pipe (17), space magnesia powder (8) between interior pipe (17) and upper eduction rod (16), resistance wire (18), lower eduction rod (19) is filled, two ends are sealed by interior stopper (14), pipe assembly in above Structure composing second group; By ring (12) in part (20) in guarantor and guarantor, pipe assembly in two groups is fixed; The two ends of described fuse (5) are connected with terminal A (3) and terminal B (7) respectively, and this fuse (5), terminal A (3) and terminal B (7) are inserted in inner sleeve (4), terminal B (7) is connected with the lower eduction rod (9) of pipe assembly in first group, terminal A (3) is connected with thermostat (22) one end, the other end of this thermostat (22) is connected with the lower eduction rod (19) of pipe assembly in second group, outer tube (6) is enclosed within part in guarantor (20), assembly in above Structure composing; Interior assembly is inserted in outer tube (2), between space fill with magnesia powder (8), afterbody end cap (1) sealing, head outer stopper (15) seals.
2. the single head electric heating tube of double insulation according to claim 1 protection, is characterized in that: in described guarantor, in ring (12) and guarantor, the shape of part (20) is foliaceous.
3. manufacture a method for the single head electric heating tube of double insulation as claimed in claim 1 protection, it is characterized in that: comprise the steps:
1), upper eduction rod (13), lower eduction rod (9) are connected to resistance wire (10) two ends, the upper eduction rod (13) connected, resistance wire (10), lower eduction rod (9) are inserted in interior pipe (11), space magnesia powder (8) between interior pipe (11) and upper eduction rod (13), resistance wire (10), lower eduction rod (9) is filled, two ends are sealed by interior stopper (14), and in first group prepared by pipe assembly;
2), the same method, upper eduction rod (16), lower eduction rod (19) are connected to resistance wire (18) two ends, the upper eduction rod (16) connected, resistance wire (18), lower eduction rod (19) are inserted in interior pipe (17), space magnesia powder (8) between interior pipe (17) and upper eduction rod (16), resistance wire (18), lower eduction rod (19) is filled, two ends are sealed by interior stopper (14), and in second group prepared by pipe assembly;
3) in, by above two groups having prepared, pipe assembly is pressed into semicircle, will ensure that interior pipe assembly narrowing toward each end is broad in the middle when compacting;
4), be pressed into semicircular interior pipe assembly by ring (12) in part (20) in guarantor and guarantor by two groups to fix;
5), the two ends of fuse (5) splicing ear A (3) and terminal B (7) respectively, and this fuse (5), terminal A (3) and terminal B (7) are inserted in inner sleeve (4), terminal A (3) is connected with thermostat (22) one end, and the other end of thermostat (22) is connected with terminal C (21);
6), in first group the lower eduction rod (9) of pipe assembly is connected with terminal B (7), and in second group, the lower eduction rod (19) of pipe assembly is connected with terminal C (21);
7), outer tube (6) is enclosed within part in guarantor (20);
8), end cap (1) is fixed on outer tube (2) tail end, and to this end undergauge, in above-mentioned preparation being completed, assembly inserts in outer tube (2), between space with magnesia powder (8) fill, head outer stopper (15) seals;
9), by ring (12) in will protecting, protect in part (20) design be foliaceous, magnesia powder (8) directly can pour into the afterbody to electric heating tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611737.7A CN104378854B (en) | 2014-11-03 | 2014-11-03 | A kind of single head electric heating tube structure of double insulation protection and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611737.7A CN104378854B (en) | 2014-11-03 | 2014-11-03 | A kind of single head electric heating tube structure of double insulation protection and manufacture method thereof |
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| Publication Number | Publication Date |
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| CN104378854A true CN104378854A (en) | 2015-02-25 |
| CN104378854B CN104378854B (en) | 2016-02-17 |
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| CN201410611737.7A Active CN104378854B (en) | 2014-11-03 | 2014-11-03 | A kind of single head electric heating tube structure of double insulation protection and manufacture method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107509262A (en) * | 2017-09-29 | 2017-12-22 | 扬中市华荣电器设备有限公司 | A kind of electric heater unit of new type explosion proof |
| CN108200673A (en) * | 2018-01-24 | 2018-06-22 | 江苏裕兴电器有限公司 | A kind of high pressure resistant electric heater of low temperature and its manufacturing method |
| CN108541092A (en) * | 2018-04-19 | 2018-09-14 | 镇江市恒升达化工科技有限公司 | Single head U-tube and straight-bar knockdown type electric heating tube |
| CN109673071A (en) * | 2018-12-11 | 2019-04-23 | 安徽苏立科技股份有限公司 | A kind of novel single fusing heating pipe processing technique |
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| GB449646A (en) * | 1934-08-29 | 1936-07-01 | Manuf Generale Metallurg Sa | Improvements in electric heating resistance elements and in process of manufacturing same |
| CN2514615Y (en) * | 2001-10-11 | 2002-10-02 | 彩虹彩色显象管总厂 | Insulative high-efficient tube type electric heater |
| CN201263219Y (en) * | 2008-09-27 | 2009-06-24 | 镇江市东方制冷空调设备配件有限公司 | Dual protection electric heater |
| CN201528442U (en) * | 2009-09-25 | 2010-07-14 | 高要市金田电热有限公司 | Single-end double-layer fuse heating tube with insulating tape |
| CN204244495U (en) * | 2014-11-03 | 2015-04-01 | 杭州佐帕斯工业有限公司 | A kind of single head electric heating tube structure of double insulation protection |
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2014
- 2014-11-03 CN CN201410611737.7A patent/CN104378854B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB449646A (en) * | 1934-08-29 | 1936-07-01 | Manuf Generale Metallurg Sa | Improvements in electric heating resistance elements and in process of manufacturing same |
| CN2514615Y (en) * | 2001-10-11 | 2002-10-02 | 彩虹彩色显象管总厂 | Insulative high-efficient tube type electric heater |
| CN201263219Y (en) * | 2008-09-27 | 2009-06-24 | 镇江市东方制冷空调设备配件有限公司 | Dual protection electric heater |
| CN201528442U (en) * | 2009-09-25 | 2010-07-14 | 高要市金田电热有限公司 | Single-end double-layer fuse heating tube with insulating tape |
| CN204244495U (en) * | 2014-11-03 | 2015-04-01 | 杭州佐帕斯工业有限公司 | A kind of single head electric heating tube structure of double insulation protection |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107509262A (en) * | 2017-09-29 | 2017-12-22 | 扬中市华荣电器设备有限公司 | A kind of electric heater unit of new type explosion proof |
| CN108200673A (en) * | 2018-01-24 | 2018-06-22 | 江苏裕兴电器有限公司 | A kind of high pressure resistant electric heater of low temperature and its manufacturing method |
| CN108200673B (en) * | 2018-01-24 | 2024-03-26 | 江苏裕兴电器有限公司 | Low-temperature high-pressure-resistant electric heater and manufacturing method thereof |
| CN108541092A (en) * | 2018-04-19 | 2018-09-14 | 镇江市恒升达化工科技有限公司 | Single head U-tube and straight-bar knockdown type electric heating tube |
| CN109673071A (en) * | 2018-12-11 | 2019-04-23 | 安徽苏立科技股份有限公司 | A kind of novel single fusing heating pipe processing technique |
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| Publication number | Publication date |
|---|---|
| CN104378854B (en) | 2016-02-17 |
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