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foot tub

A technology for foot baths and basins, applied in water heaters, ohmic resistance waterproof/airtight, ohmic resistance heating parts, etc., can solve problems such as electric shock and life-threatening, and achieve the effect of rapid heating

Active Publication Date: 2018-11-20
GRAHOPE NEW MATERIALS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing foot baths use metal electric heating wires to heat the water in the basin. Metal electric heating wires are used as heating materials and require a higher voltage for power supply, much higher than 36V. Water is a conductor. Once a fever leaks, it may cause electric shock and endanger life.

Method used

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Experimental program
Comparison scheme
Effect test

preparation example Construction

[0110] The preparation method of the above-mentioned heating film 210 is relatively simple, saving time and material cost. At the same time, the electrode layer is prepared by using metal foil, which has good conductivity and is beneficial to control the uniformity of the temperature of the heating film.

[0111] Preferably, the thickness of the first adhesive layer 213 and the second adhesive layer 217 is 25-75 μm.

[0112] see Figure 6 , the structure of the footbath tub in another embodiment is substantially the same as that of the footbath tub 1, the difference being that in the illustrated embodiment, the heating film 410 of the footbath tub includes a first insulating layer 412, a conductive layer 414, and an electrode stacked in sequence. layer 416 , a second adhesive layer 417 and a second insulating layer 418 . The second insulating layer 418 is bonded to the electrode layer 416 through the second insulating layer 418 . Preferably, the material of the second adhesi...

Embodiment 1

[0129] Please also see Figure 4 and Figure 5 , single-layer graphene is used as the conductive layer of the heating film, and the electrode layer is printed with silver paste.

[0130] 1. Transfer a layer of graphene on the PET (first insulating layer) with an area of ​​150mm×150mm and a thickness of 125μm. The graphene has been doped and the square resistance is 250Ω / □;

[0131] 2. Use screen printing equipment to print the silver paste electrode pattern on the transferred graphene, the shape of the pattern is as follows: Figure 4 As shown, the distance between the positive inner electrode and the negative inner electrode is 6mm, the length of the positive inner electrode and the negative inner electrode is 108mm, and the width is 1mm, a total of 15, the width of the positive bus bar and the negative bus bar is 8mm, and the thickness of the silver paste is 25μm;

[0132] 3. Bake the printed electrode layer in an oven to solidify the silver paste. The baking temperature i...

Embodiment 2

[0143] In this embodiment, two layers of graphene are used as the conductive layer of the heating film, and the electrode layer is printed with silver paste.

[0144] 1. Transfer two layers of graphene as the conductive layer on the PET (first insulating layer) with an area of ​​120mm×120mm and a thickness of 125μm. The graphene has been doped and the square resistance is 120Ω / □;

[0145] 2. Use screen printing equipment to print the silver paste electrode layer on the transferred conductive layer, and the pattern shape is as follows: Figure 10 As shown, the outer diameter of the bus bar is 96mm, the inner electrode spacing is 6mm, the width is 1mm, the width of the bus bar is 8mm, and the thickness of the silver paste is 25μm;

[0146] 3. Bake the printed electrode pattern in an oven to solidify the silver paste. The baking temperature is 130°C for 40 minutes.

[0147] In this case, connect the lead wires to the positive and negative poles of the 5V power supply respectivel...

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Abstract

The invention relates to a foot tub. The foot tub comprises a tub body and a heating film arranged on the tub body, wherein the heating film comprises a first insulating layer, a conducting layer, an electrode layer and a second insulating layer; the conducting layer is formed on the surface of the first insulating layer; the electrode layer is formed on the surface of the conducting layer and electrically connected with the conducting layer; the electrode layer comprises a positive electrode and a negative electrode; the positive electrode comprises a positive electrode bus bar and multiple positive electrode inner electrodes extending from the positive electrode bus bar; the negative electrode comprises a negative electrode bus bar and multiple negative electrode inner electrodes extending from the negative electrode bus bar; the positive electrode inner electrodes and the negative electrode inner electrodes are arranged alternately and are mutually spaced; the second insulating layer is formed on the surface of the electrode layer. The foot tub further comprises a connection line electrically connected with the electrode layer of the heating film. The foot tub has the heating function and can adopt lower voltage to supply power.

Description

technical field [0001] The invention relates to a foot bath. Background technique [0002] The foot is one of the places where the meridians of the human body converge, and each organ of the human body has a specific reflection area on the bottom of the foot. Insisting on hot water foot bath every day can relax tendons and collaterals, harmonize qi and activate blood, regulate and balance human secretion, stretch tense nerves, activate peripheral nerves, delay human aging, and effectively prevent various human vascular diseases. [0003] When the weather is cold, the hot water in the foot bath of the hot water foot bath is easy to cool down. Therefore, the foot bath that can be heated is more and more widely used. Existing footbaths use metal heating wires to heat the water in the basin. Metal heating wires are used as heating materials and require a higher voltage for power supply, much higher than 36V. Water is a conductor. Once a fever leaks, it may cause electric shock ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/20H05B3/04
Inventor 冯欣悦冯冠平
Owner GRAHOPE NEW MATERIALS TECH INC