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PTC ceramic heat protector

A technology of thermal protector and ceramics, which is applied in the direction of thermal switch components, etc., can solve the problems of poor safety and low product sensitivity, and achieve the effect of prolonging life, fast sensitivity and ensuring safe use

Inactive Publication Date: 2009-01-07
宝应电器厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current products are used in the current overload and overheating protection of vacuum cleaners, portable electric tools, manual (or automatic) reset motors, but the products have low sensitivity and poor safety.

Method used

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  • PTC ceramic heat protector
  • PTC ceramic heat protector

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Experimental program
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Effect test

Embodiment Construction

[0008] Such as figure 1 , 2 As shown, the bottom plate 1 and the shell 2 are connected together, and an insulating paper 3 is arranged between the bottom plate and the shell.

[0009] In the cavity formed by the shell 2 and the bottom plate 2, static and movable contacts 4 and 5 are arranged in cooperation with each other. The static contact 4 is fixedly connected on the bottom plate 1, the movable contact 5 is arranged above the static contact 4, and the upper end of the movable contact 5 is connected with a bimetallic strip 6, and the other end of the bimetallic strip 6 is connected with a contact head 7, a The wire 8 is connected to the housing 2 .

[0010] The PTC ceramic sheet 10 is connected to the back of the bottom plate 1 through a clamp 9 .

[0011] Precautions for use:

[0012] Manual reset is adopted. When the appliance used is overheated or overloaded and TP is protected, the circuit still has a signal but its resistance is infinite, and the appliance cannot w...

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PUM

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Abstract

A porcelainous thermal protector (PTC) relates to the technical field of an electrical appliance, in particular to the technical field of the structure taking a phialiform bimetallic strip as a temperature sensing element. The porcelainous thermal protector comprises a soleplate and a shell which are connected with each other, an insulator is arranged between the soleplate and the shell, a cavity formed between the shell and the soleplate is internally provided with a fixed contact and a moving contact that are matched with each other; the fixed contact is fixedly connected with the soleplate, and the moving contact is arranged above the fixed contact; the bimetallic strip is connected with the upper end of the moving contact, and the other end of the bimetallic strip is connected with a contacting head; a lead is connected with the shell, a ceramic plate of the PTC is connected with the back of the soleplate. The porcelainous thermal protector has more rapid sensibility, safety and double sheltering effect on overheating and overload. The overcurrent protection of a dust collector, a portable electric tool and a manual reset motor is stable, thereby guaranteeing the safe use, long service life and energy conservation of the appliance.

Description

technical field [0001] The invention relates to the technical field of electrical devices, in particular to the technical field of structures using disc-shaped bimetallic strips as temperature sensing elements. Background technique [0002] The existing thermal protector is an automatic reset product. The thermal protector uses a disc-shaped bimetal as a temperature sensing element to protect the temperature. Its structure is mainly composed of a bottom plate and a shell connected together. An insulator is arranged between the bottom plate and the shell, and static and moving contacts are set in the cavity formed by the shell and the bottom plate, and the temperature signal is transmitted through the wire connected with the shell. Existing products are used in current overload and overheating protection of vacuum cleaners, portable electric tools, manual (or automatic) reset motors, but the products have low sensitivity and poor safety. Contents of the invention [0003] ...

Claims

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Application Information

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IPC IPC(8): H01H37/52
Inventor 樊海宏杨风雷潘振富
Owner 宝应电器厂