CN209824044U

CN209824044U - Aluminum foil heater of anti-damage

Info

Publication number: CN209824044U
Application number: CN201822191957.5U
Authority: CN
Inventors: 李洋; 庄双勇
Original assignee: Chuzhou Hengte Electrical Appliance Co ltd
Current assignee: Chuzhou Hengte Electrical Appliance Co ltd
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2019-12-20
Anticipated expiration: 2028-12-25

Abstract

The utility model discloses an aluminium foil heater of anti-damage, include: the aluminum foil heating device comprises an aluminum foil serving as a base material, a circle of heating wire arranged on the aluminum foil and used for heating, and a layer of bonding layer for bonding the aluminum foil and the heating wire, wherein the heating wire is of a circular ring winding structure and comprises a central folding part and an external spiral bending part connected with the folding part, and the folding part is S-shaped. The aluminum foil heater of the utility model adopts the heating wire with the circular ring-shaped spiral winding structure, improves the bending smoothness, avoids the situation that the surface of the heating wire is cracked or even broken due to high bending degree, and improves the damage resistance of the heater; and the heating wire of the heating wire is of a spiral winding structure, so that the bending smoothness is further improved, the damage resistance of the heater is improved, and the heating area is also improved.

Description

Aluminum foil heater of anti-damage

Technical Field

The utility model belongs to the technical field of the heater, in particular to aluminium foil heater of anti-damage.

Background

At present, an aluminum foil heater is often used for local heating, the heating structure in the aluminum foil heater is a heating wire, and the heating wire is bent in an S shape to increase the coverage area of the heating wire and improve the heating efficiency. But the bending damage can exist at the bending part in the S-shaped bending processing process; in addition, the heating wire is made of metal, the temperature of the metal rises after the power is on, the movement of the crystal structure inside the heating wire is accelerated to generate expansion deformation, after the power is off, the movement of the crystal structure inside the heating wire is decelerated to cause the heating wire to contract and deform, the crystal structure inside the bent part is extruded, the crystal structure outside the bent part is stretched, the movement stroke of the crystal structure is different to cause the expansion and contraction deformation rates to be inconsistent in the power-on and power-off processes, and cracks and even fractures can be generated on the surface of the bent part of the heating wire in the long-term use process, so that the heater cannot achieve the expected heating effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem of the existence of above-mentioned prior art, provide an aluminium foil heater of anti-damage.

The utility model discloses a following technical means realizes solving above-mentioned technical problem:

a damage resistant aluminum foil heater comprising:

an aluminum foil as a base material;

the heating wire is of a circular ring winding structure and comprises a central folded part and an outer spiral bent part connected with the folded part, and the folded part is S-shaped;

and the adhesive layer is used for bonding the aluminum foil and the heating wire.

As a further improvement, the heating wire comprises a glass fiber rope, a heating wire and an insulating layer, the heating wire is wound outside the glass fiber rope, and the insulating layer is coated outside the heating wire.

As a further improvement, the heating wire is wound at intervals, and silica gel is filled between the glass fiber rope and the insulating layer.

As a further improvement, the protection block is arranged between the folding part and the spiral bending part and is a round platform.

As a further improvement, the last edge of protection piece and the line parallel and level that generates heat, the top of protection piece is equipped with the flanging, the flanging lower part be equipped with the concave surface of the line adaptation that generates heat.

As a further improvement, the adhesive layer is EVA hot melt adhesive.

The utility model has the advantages that:

(1) the aluminum foil heater of the utility model adopts the heating wire with the circular ring-shaped spiral winding structure, improves the bending smoothness, avoids the situation that the surface of the heating wire is cracked or even broken due to high bending degree, and improves the damage resistance of the heater;

(2) the heating wire of the utility model is of a spiral winding structure, so that the bending smoothness is further improved, the damage resistance of the heater is improved, and the heating area is also improved;

(3) the utility model discloses a protection piece can protect on the one hand to a structure, and on the other hand can improve the connection stability of the line that generates heat.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view showing the connection of the aluminum foil, the adhesive layer, the protective block and the heating wire of the present invention;

FIG. 3 is a schematic structural view of the heating wire of the present invention;

fig. 4 is a schematic structural diagram of the protection block of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in fig. 1 and 2, an aluminium foil heater of anti-damage, including aluminium foil 10, bond line 20 and heating wire 30, bond line 20 sets up between aluminium foil 10 and heating wire 30 and with aluminium foil 10 and the adhesion of heating wire 30, heating wire 30 is ring winding structure, the centre of heating wire 30 is equipped with folded portion 31, heating wire 30 forms two parallel circle kinks 32 through folded portion 31, circle kinks 32 and use folded portion 31 to outwards buckle as the center, the folded portion 31 of heating wire 30 is "S" shape, folded portion 31 and circle kinks 32 and form cloudy sun fish structure.

The utility model discloses an aluminium foil heater 'S heating wire is ring shape winding structure, whole spiral structure is buckled the transition gently, the high degree of buckling of having avoided "S" shape to buckle, reduce the damage of buckling that the department of bending exists in the course of working, and reduce crystal structure' S motion stroke difference degree and the high expansion shrinkage deformation rate that leads to, reduce the cracked condition even of heating wire surface production crackle in the long-term use, bond line 20 fixes heating wire 30 and prevents its structural deformation on aluminium foil 10, the damage resistance performance of heater has been improved.

Further, as shown in fig. 3, the heating wire 30 includes a glass fiber rope 301, a heating wire 302 and an insulating layer 304, the heating wire 302 is wound outside the glass fiber rope 301, and the heating wire 302 is covered with the insulating layer 304; the whole winding of heater 302 is on glass fine rope 301's surface, with heating wire 30 radially at the axial degree of buckling decomposition in winding arrangement, further improves the transition mild degree of buckling to improved the resistance to damage performance of heater, still not only improved the heat generation area simultaneously, insulating layer 304 is used for protecting heater 302.

Further, as shown in fig. 3, the heating wires 302 are wound at intervals, that is, a gap is formed between every two adjacent circles of wound heating wires 302, and silica gel 303 is filled between the glass fiber rope 301 and the insulating layer 304; the heating wire 302 wound at intervals is used for avoiding short circuit, and the filled silica gel 303 can further protect the heating wire 302 from contact short circuit, so that the safety performance is improved.

Further, as shown in fig. 1 and 2, a protection block 40 is arranged between the folded part 31 and the spiral bent part 32, the protection block 40 is fixedly connected to the aluminum foil 10, the protection block 40 is a circular truncated cone, and the protection block 40 is located at the head of a fish in shade and sun; the protection block 40 is used for limiting the heating wire 30 and protecting the bending structure of the folded part 31.

Further, as shown in fig. 2 and 3, the upper edge of the protection block 40 is flush with the heating wire 30, the top of the protection block 40 is provided with an outward flange 41, and the lower part of the outward flange 41 is provided with a concave surface 42 adapted to the heating wire 30; the outward flange 41 can press the heating wire 30 to ensure that the heating wire does not slip out when deguming, and the connection stability of the heating wire 30 is improved.

Further, the adhesive layer 20 is an EVA hot melt adhesive; be solid-state at normal temperature, fix heating wire 30 through the frock and then for heating wire 30 circular telegram, heating wire 30 generates heat after circular telegram and makes EVA hot melt adhesive melt and produce viscidity, connection process convenient and fast.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A damage-resistant aluminum foil heater, comprising:

an aluminum foil (10) as a base material;

the heating wire (30) is arranged on the aluminum foil (10) in a circle and used for heating, the heating wire (30) is of a circular winding structure and comprises a central folded part (31) and an external spiral bent part (32) connected with the folded part (31), and the folded part (31) is S-shaped;

a bonding layer (20) for bonding the aluminum foil (10) and the heating wire (30).

2. The damage-resistant aluminum foil heater as claimed in claim 1, wherein the heating wire (30) comprises a glass fiber rope (301), a heating wire (302) and an insulating layer (304), the heating wire (302) is wound outside the glass fiber rope (301), and the heating wire (302) is coated with the insulating layer (304).

3. The damage-resistant aluminum foil heater as claimed in claim 2, wherein the heating wire (302) is wound at intervals, and silica gel (303) is filled between the glass fiber rope (301) and the insulating layer (304).

4. The damage-resistant aluminum foil heater as recited in claim 1, wherein a protection block (40) is disposed between the folded portion (31) and the coil folded portion (32), and the protection block (40) is a circular truncated cone.

5. The damage-resistant aluminum foil heater as claimed in claim 4, wherein the upper edge of the protection block (40) is flush with the heating wire (30), the top of the protection block (40) is provided with a flange (41), and the lower part of the flange (41) is provided with a concave surface (42) adapted to the heating wire (30).

6. A damage-resistant aluminium foil heater according to claim 1, characterized in that the adhesive layer (20) is EVA hot melt glue.