CN2527050Y

CN2527050Y - Improved ring-type electric heating plate

Info

Publication number: CN2527050Y
Application number: CN 02203051
Authority: CN
Inventors: 廖本扬
Original assignee: 廖本扬
Current assignee: Huaqin Machinery Plant Co., Ltd.
Priority date: 2002-02-08
Filing date: 2002-02-08
Publication date: 2002-12-18
Anticipated expiration: 2012-02-08

Abstract

The utility model relates to an improved ring-shaped electro-thermal tablet, a main part of which is an electro-thermal strap which is wound and arranged on an insulating plate. Besides, the upper and lower surfaces of the insulating plate are provided with a layer isolation for insulating equipment; the insulating equipment is enwrapped by an upper and lower metal cover plates, two ends of which are respectively assembled with plugging components for plugging power source; two ends of the electro-thermal strap of the insulating plate are connected with the plugging component respectively; the electro-thermal strap is arranged at two sides of the insulating plate to form an interface without the electro-thermal strap in the middle of the insulating plate; the component assembled in this way is then combined correspondingly with a soluble material metal tube of a plastic feeding forming machine; then the assembled plate body is bent into a ring to enwrap the metal tube, thus the ring-shaped electro-thermal tablet is formed; and after the insulating plate being bent, the reserved space for insulating purpose at two ends of the insulation plate is symmetrical with the interface in the middle of the insulating plate, thus the heat transferring surface of the insulating plate is a heat conducting facility with symmetrical surface, and can provide heat source symmetrically and evenly and the heating of the peripheral diameter surface of the metal tube can be symmetrical, which can effectively prevent the metal tube from bending and deformation, and the improved ring-shaped electro-thermal tablet has better even-heating performance.

Description

The ring-like electric heating piece of Improvement type

Technical field

The utility model is the ring-like electric heating piece of a kind of Improvement type, be meant that especially a kind of the winding is laid with the ribbon heater on insulation board, and in last, lower face have respectively the insulator arrangement layer every, again on insulator arrangement is coated with, following metal cover board, each group is provided with connecting element and connects the group power supply at the two ends of plate, and it two joins this ribbon heater with connecting element respectively extremely again, the ribbon heater is laid to divide and is located at the both sides in addition, make the middle interface that forms a no ribbon heater of plate face, the member of group is again corresponding to the molten material metal tube for plastic molding press so mutually, be bent into ring-like and metal tube is coated and will assemble synthetic plate body, promptly form the ring-like electric heating piece of an endless tube shape; And after bending, the two ends of plate are that the space of asking insulation to reserve can form symmetry with the interface in the middle of the plate face just, so its heat-transfer area is the heat conduction facility that the plane of symmetry is arranged, promptly can have symmetry and thermal source is provided uniformly, so that the ring diametric plane of metal tube be subjected to state that temperature is each other symmetry with the diastrophic situation of the metal tube that effectively keeps from heat, and the ring-like electric heating piece of the more uniform Improvement type of heating.

Technical background

Common ring-like electric heating piece, mostly shown in first figure, it is that the surface of being located at metal tube A coats the electric hot plate 10 that the layer of metal plate is bent into approximate tubulose, the electric heating piece that has the insulation board 11 made of insulation mica in one is that the spiral shell group is coated in the electric hot plate 10, this insulation board 11 also is subjected to a shape metallic plate 12 to tighten fixing, and the side in its ring-like diametric plane is provided with winding spiral shell spare 110, but the two ends articulating of insulation board 11 becomes pipe and in the surperficial fixed bit of electric hot plate 10, then be provided with electric power connecting device 111 in the table side, other footpath of this insulation board 11 again, for receiving electric power so that the electric heating energy to be provided; Electric hot plate 10 commonly used is to have to be bent by metallic plate to form tubulose, therefore the two ends of this metallic plate then is in response to insulation safety and for cooperating the reservation nargin of expanding with heat and contract with cold, promptly can on the pipe face, form a breach 13 of reserving, and this breach 13 causes the heat conduction inequality when being the metal tube A conduction heat sources of 10 pairs of molten material of make-up machine of electric hot plate, thereby cause metal tube A under the irregular situation of thermal source, produce diastrophic situation, and then cause inconvenience and puzzlement in the use; In view of this design people is studied intensively, and feasible through studying proof, gets the ring-like electric heating piece of this Improvement type eventually.

Summary of the invention

Main purpose of the present utility model, being to provide a kind of has symmetry and thermal source is provided uniformly, so that the ring diametric plane of metal tube be subjected to state that temperature is each other symmetry in order to effectively avoiding the diastrophic situation of metal tube, and the ring-like electric heating piece of the more uniform Improvement type of heating.

For achieving the above object, the technical scheme that the utility model is taked is: the ring-like electric heating piece of a kind of Improvement type, it be located at the upper and lower plate face of insulation board have respectively the insulator arrangement layer every, be coated with upper and lower metal cover board at insulator arrangement again, each group is provided with connecting element at the two ends of plate, to connect the group power supply; Promptly formed the ring-like electric heating piece of an endless tube shape.

Principal character of the present utility model is: the insulation board surface is twined and is laid with the ribbon heater, and it two joins the ribbon heater of this insulation board with connecting element respectively extremely again, the ribbon heater is laid on the surface of insulation board and is divided into the both sides, make the middle interface that forms a no ribbon heater of plate face, the member of group is again corresponding to the molten material metal tube for plastic molding press so mutually, be bent into ring-like and metal tube is coated and will assemble synthetic plate body, promptly form the ring-like electric heating piece of an endless tube shape.

The utility model for achieve the above object, effect, the technological means that is adopted below lists preferable feasible embodiment and cooperates diagram, details are as follows:

At first, consult shown in Figure 2 clearly, electric heating piece of the present utility model 2 its surfaces that mainly are provided in a side of insulation board 22 are twined and are laid with ribbon heater 220 (this ribbon heater 220 be main composition material with the nickel chromium triangle metal), on insulation board 22, lower face be respectively equipped with 21 layers of bigger insulator arrangements of plate area every, in order to effective insulating effect to be provided, in addition last, the insulator arrangement 21 of lower floor is coated with, following metal cover board 20,20 ', wherein going up metal cover board 20 is a platysome, following metal cover board 20 ' then be tool coated side 200 ' box body, again this insulator arrangement 21 its to establish by the insulation mica be the main composition material; And the ribbon heater 210 on these insulation board 22 plate faces its two extremely be respectively with wear group insulator arrangement 21 and on, following metal cover board 20,20 ' connecting element 23 join, this connecting element 23 is to plug the supply of thinking power supply with power supply, moreover, this ribbon heater 220 is divided on the surface of insulation board 22 and is located at the both sides, form an interface 221 of not having winding ribbon heater 220 in the middle of making the plate face, the member of group is again corresponding to the molten material metal tube A for plastic molding press so mutually, the plate body that this assembling is synthetic is bent into ring-like and metal tube A is coated, and promptly forms the ring-like electric heating piece 2 (electric heating piece 2 that does not bend after the combination is shown in 3 figure) of an endless tube shape.

Because after these electric heating piece 2 bendings, the space that the two ends of its plate body are reserved just can form symmetry with the interface 221 in the middle of the plate face, so organizing mutually in the electric heating piece 2 on metal tube A surface all has reservation not have the subsides of ribbon heater 220 to touch in the both sides of appointing of its ring diametric plane, making its heat-transfer area is the heat conduction facility of promising two planes of symmetry, can have symmetry and thermal source is provided uniformly, so that the state that is subjected to temperature to be each other symmetry of the ring diametric plane of metal tube A (is 220 places, corresponding tool ribbon heater simultaneously, tool ribbon heater 220, and the interface in the middle of the space respective panels face of plate end), can effectively avoid metal tube A to cause diastrophic situation, and heating is more even because of the inequality of being heated.

In sum, the utility model embodiment can reach desired effect and purpose really, and more even more ideal, practical than ware commonly used, and the utility model does not see in the ware before application in addition, meet novel application condition, now applied for utility model patent.

Description of drawings

Shown in Figure 1 is the structure of electric hot plate commonly used.

Shown in Figure 2 is the three-dimensional exploded view of the utility model embodiment.

Fig. 3 institute formula is the combination schematic diagram of the utility model embodiment.

Reference number number in the diagram:

Electric hot plate 10 insulation boards 11

Spiral shell spare 110 plug assemblys 111

Metallic plate 12 breach 13

220 interfaces, 20 times metal cover board 20 ' coated sides of metal cover board, 200 ' insulator arrangement, 21 insulation boards, 22 ribbon heaters, 221 plug connector elements 23 on the ring-like electric heating piece 2 of metal tube A

Claims

1. ring-like electric heating piece of Improvement type, it be located at the upper and lower plate face of insulation board have respectively the insulator arrangement layer every, be coated with upper and lower metal cover board at insulator arrangement again, each group is provided with connecting element at the two ends of plate, to connect the group power supply; It is characterized in that:

The insulation board surface is twined and is laid with the ribbon heater, and the ribbon heater two of this insulation board joins with connecting element respectively extremely again, the ribbon heater is laid on the surface of insulation board and is divided into the both sides, make the middle interface that has formed a no ribbon heater of plate face, the member of group is again corresponding to the molten material metal tube for plastic molding press so mutually, be bent into ring-like and metal tube is coated and will assemble synthetic plate body, promptly formed the ring-like electric heating piece of an endless tube shape;

2. the ring-like electric heating piece of Improvement type according to claim 1, wherein the ribbon heater of insulation board is to be the main composition material with the nickel chromium triangle metal.

3. the ring-like electric heating piece of Improvement type according to claim 1, wherein descending metal cover board is to be made as the box body that tool coats.