CN2455033Y

CN2455033Y - Electric-heating blanket

Info

Publication number: CN2455033Y
Application number: CN 00252890
Authority: CN
Inventors: 何龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-16
Filing date: 2000-11-16
Publication date: 2001-10-17
Anticipated expiration: 2010-11-16

Abstract

The utility model discloses an electric-heating blanket, which comprises a heating wire. The electric-heating blanket is characterized in that a core wire of the heating wire is composed of a carbon fiber bundle which is composed of a plurality of carbon fiber long filaments. Compared with the prior art, the utility model has the advantages of long service life and high safety.

Description

A kind of electric blanket

The utility model relates to a kind of household electronic products, exactly is a kind of electric blanket.

At present, market electric blanket on sale mainly contains two kinds, and a kind of is the plain edition electric blanket, and another kind is the water heating type electric blanket.The former make is more original, and it mainly is made up of blanketing, heating line, power supply coupling components; The latter is a kind of new electrically heating blanket that came out in recent years, and it is based on common electric blanket, fills with water again in outside coated one deck plastic tube of heating line, pipe, and the two ends that make plastic tube form sealed attachment between the line with generating heat.The common heating line that uses of this two classes electric blanket mainly contains two kinds, a kind of is common heating line, it is by heart yearn and coatedly form at its outside insulating barrier, and another kind is powerful heating line, and it is made up of the heart yearn and the coated insulating barrier in both outsides that are wrapped on the nylon baseline.Wherein heart yearn constitutes by the bigger single metal wire of resistance value.The subject matter that existing electric blanket in use exists is: 1, because the heart yearn of its heating line adopts single metal wire to make, and diameter wiry has only less than 20 roads again, thereby the not anti-bending of the unavoidable existence of this heart yearn, the problem that is easy to fracture, particularly electric blanket is laid in the sponge bed, soft bed such as wire spring bed is gone up when using, the chance that the heating line fractures is just more, in a single day single heart yearn fractures electric blanket can't be worked, but also the stronger spark phenomenon that very easily causes, even with its stubborn connecing together, also can reduce because of contact place resistance, electric current increases and causes high temperature, causes a thing on fire.Therefore, heart yearn fractures, and just can not repair, and just means that also electric blanket thoroughly damages.This shows, existing electric blanket not only average life shorter, but also have the hidden danger of safety.In fact because of electric blanket damage face causes the phenomenon of fire generation is arranged more, bring prestige association for people's life security.

The purpose of this utility model is for people provide a kind of long service life, the electric blanket that security performance is good.

The purpose of this utility model is achieved in that it comprises the heating line, and the carbon fiber bundle that the heart yearn of the line that is characterized in generating heat is made up of some carbon fiber filaments constitutes.

The utility model is realized the back because the heart yearn of its heating line is made up of 3000-6000 root carbon fiber filament, make that it has on the one hand that flexibility is good, intensity is high, counter-bending, the characteristics of frangibility not, on the other hand, when the part carbon fiber filament fractures, heart yearn also still can work on, therefore, the utility model compared with prior art has not fragile, the advantage of long service life.In addition, when part carbon fiber filament or the disconnection of whole fibre bundle, gap spark phenomenon can not occur yet, thereby can improve the usage safety performance of electric blanket.

Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.

Fig. 1 is the structural representation of a kind of line that generates heat of the present utility model.

Fig. 2 is the structural representation of another kind of heating line of the present utility model.

Fig. 3 is a kind of version schematic diagram of the present utility model.

Fig. 4 is an another kind of version schematic diagram of the present utility model.

Fig. 5 is the connecting relation schematic diagram of heating line and its binding post.

Fig. 6 is the A-A cutaway view of Fig. 3.

Fig. 7 is the connecting mode schematic diagram of heating line and power supply coupling components.

In implementation process, the utility model is compared with existing plain edition electric blanket or water heating type electric blanket, and all the other each ones are identical except that the make difference of heating line.Heating line of the present utility model only is that with the difference of existing various heating lines the structural form of its heart yearn is different, and heart yearn promptly of the present utility model adopts some carbon fiber filament bundles to make.Manufacture technology flow process of the present utility model is as follows:

One, preparation heating line

The heating line that the utility model uses is the same with prior art, also is divided into two kinds, and a kind of is common heating line, and another kind is powerful heating line.Various heating lines are manufactured respectively as follows:

1, buys the carbon fiber filament bundle

As required, from market, buy the carbon fiber filament Shu Ruogan of suitable specification.In the present embodiment, choosing resistance value is 70-75 Ω/M or 24-25 Ω/M, and model is 3-6k, the carbon fiber filament bundle that promptly every intrafascicular radical that contains carbon fiber filament is the 3000-6000 root.

2, manufacture heating line blank

(1) manufactures common heating line blank

By heating line structure form shown in Figure 1, and the method for pressing the common heating line of existing production blank, utilize plastic wrapping machine to get final product at outside coated one deck non-toxic polyvinyl chloride insulating barrier 2 of carbon fiber filament bundle 1.

(2) manufacture powerful heating line blank

Press heating wire wire form shown in Figure 2, and manufacture by existing method of producing powerful heating line blank.Technical process is earlier carbon fiber bundle 1 to be wrapped in it on nylon baseline 3 by the spiral canoe, then, utilizes plastic wrapping machine to get final product at its outside coated one deck non-toxic polyvinyl chloride insulating barrier 2 again.

Powerful heating line is compared with common heating line has higher tensile strength and rupture strength, but the manufacture technology more complicated, production cost is also higher.Various heating lines select for use principle compared with prior art, do not do tired stating at this.

3, manufacture finished product heating line

At first according to the power of electric blanket to be produced, the resistance value of operating voltage and heating line calculates the cutting length of heating line, and blanking gets final product then.

Two, finished product heating line and blanketing cross-under

During production plain edition electric blanket, technology penetrates the finished product line that generates heat in it and gets final product along the duct of perforation blanketing routinely; Production is shown in Fig. 3,4 during the hot-water heating electric blanket, also by the prior art operation, the plastic tube 5 that promptly is used for water shutoff at outside coated one deck of finished product heating line, and make and fill with water in the tube chamber, then the space between plastic tube two ends and the heating wire is sealed, closure member can be made of sealed tube shown in Figure 36, also can form by shown in Figure 4 two logical 9, cork 8, two logical 9 lower ends connect with plastic tube end inner chamber plant cementation, cork is pegged graft with the removable sealing of two logical upper end inner chambers after then being nested with sealed attachment by its axle center micropore and heating line 4 again.After plastic tube and the heating linear sealing, the duct of edge perforation blanketing 4 penetrates it in duct and gets final product again.

Three, the binding post of heating line is installed

Because the carbon fiber filament bundle is not a wire,, can only adopts the crimping method binding post to be set, and then connect with the power supply coupling components by terminal in its end so can not adopt stubborn method and the power line that connects and weld to join.In the present embodiment, connecting mode such as Fig. 5, shown in Figure 6 between binding post 10 and heating line 7 ends, method for production is that will generate heat the earlier insulating barrier of the about 10mm length of thread end is peelled off, then with the carbon fiber bundle inflection to generating heat line outside, the plates that promptly illustrate left end with binding post one end are with its containing and press solidly on the thread end body that generates heat and get final product again.

Four, the heating line connects with the power supply coupling components

By Fig. 7, Fig. 4 as can be known, the power supply coupling components mainly is made up of plug 18, switch 19 and connection socket, wherein, connects socket and is made up of holder and plug 17, the loam cake 11 of holder, lower cover 12 lay respectively on the top and bottom at one jiao of place of blanketing, connect by screw 14 between the two.The upper and lower covers internal fixation of holder is provided with connecting column 15, the heating line is pegged graft with connecting column 15 by its binding post and is connected, the plug 17 that connects socket pegs graft by its jack 16 and connecting column 15, so far, promptly finished connecting between heating line and the power supply coupling components.Certainly, cancellation connects socket, and the power output end of power supply coupling components is directly connected with the binding post welding of heating thread end, also is fine as shown in Figure 3.

Claims

1, a kind of electric blanket comprises the heating line, and the carbon fiber bundle that the heart yearn of the line that it is characterized in that generating heat is made up of some carbon fiber filaments constitutes.