Heating device capable of eliminating induction electricity

A heating device and induction electricity technology, applied in the field of foot baths, can solve problems such as electric numbness of users, and achieve the effects of improving safety, easy production and assembly, and exquisite design

Active Publication Date: 2014-09-03
SHANGHAI TAICHANG HEALTH TECH
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a second-class electrical appliance in household appliances, foot baths do not require the use of grounding wires. Therefore, the presence of induced electricity in foot baths is a long-standing safety problem in the water-filled foot bath industry. The induction electricity will pass through when users bathe their feet. The human body discharges the earth, which in turn makes the user feel electric numbness

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heating device capable of eliminating induction electricity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0009] See figure 1 , shown in the figure is a heating device that can eliminate inductive electricity, including a PTC heating element 1, and metal sheets respectively arranged on both sides of the PTC heating element, wherein the periphery of the metal sheet is wrapped sequentially from the inside to the outside There is a first insulating layer 3, a metal shielding layer 2 and a second insulating layer 4. The first and second insulating layers can be wrapped with a complete insulating material at one time, or can be divided into two layers with two insulating materials. The package is complete. The metal shielding layer provides a first input terminal and a second input terminal. It is characterized in that the first and second input terminals are connected to the zero live wire signal sampling circuit, and the zero live wire signal sampling circu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a heating device capable of eliminating induction electricity. The heating device comprises a PTC heating element and metal pieces arranged at the two sides of the PTC heating element respectively. The metal pieces are peripherally and sequentially wrapped by a first insulating layer, a metal shielding layer and a second insulating layer from inside to outside. The metal shielding layer provides a first input end and a second input end, wherein the first input end and the second input end are connected with a null / live wire signal sampling circuit. The null / live wire signal sampling circuit is connected with a null / live wire identification circuit. The null / live wire identification circuit is connected with a first power-on sequence circuit, a second power-on sequence circuit and a null wire locking circuit. The advantages of the heating device are that: through corresponding action design, circuit processing and logical judgment, the connection with the metal shielding layer of a heating pipe and a commercial power zero wire are kept all the time, thereby blocking a PTC ceramic heating block and an affiliated connection mechanism from generating distributed capacitance with a heat-conductive metal tube and water, and further, eliminating induction electricity on the surface of the heating pipe and in the water of a foot bath device.

Description

technical field [0001] The present invention relates to a foot bath, in particular, a heating device capable of eliminating induction electricity. Background technique [0002] As a second-class electrical appliance in household appliances, foot baths do not require the use of grounding wires. Therefore, the presence of induced electricity in foot baths is a long-standing safety problem in the water-filled foot bath industry. The induction electricity will pass through when users bathe their feet. The human body discharges electricity to the ground, causing the user to feel electric numbness. The reason for the induced electricity is that the heating element body and the attached connection mechanism in the heating device will generate distributed capacitance with the heat-conducting metal of the heating device and the water connected to the metal. Through the effect of the distributed capacitance, the heating element body and the The attached connecting mechanism makes the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H05B3/30F24H9/18F24H9/20
Inventor 王昌华
Owner SHANGHAI TAICHANG HEALTH TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap