Current temperature protector
A temperature protector and current technology, applied in the direction of thermal switch components, etc., can solve the problems of increasing process complexity and production cost, and achieve the effect of compact structure, simplified production process and small volume
Inactive Publication Date: 2010-02-24
杭州富阳华裕控制电器厂
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And the heating wire is welded on the two disconnected bottom plates, which increases the complexity of the process and the production cost
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[0016] Such as figure 1 As shown, the current temperature protector includes a casing 1, a bimetal 2, a movable contact 3, an iron nail 4, insulating paper 5, a static contact 6 and a heating base 7. The heating bottom plate is made of heating flat material, and according to the parameter requirements of the protector, it is generally processed by a cold stamping die at one time. In order to increase the heat of resistance, it is punched into S shape or Z shape, and the middle part is designed to be slender, so that the heat can be concentrated in the middle part, such as Figure 4 . The heating bottom plate is located under the bimetal sheet, which makes the current protection function more sensitive. Such as Figure 4 Shape, adjust the thickness of the heating base material (generally 0.2~0.5mm) and the width and spacing L of the punching edge S to achieve different resistance heating values to meet the requirements of different protector current design parameters. Th...
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The invention relates to a current temperature protector which is mainly used for the field of household appliances. The current temperature protector comprises a shell, a bimetallic strip, a movablecontact, iron nails, insulating paper, a static contact and a bottom plate, wherein the movable contact is arranged at the free end of the bimetallic strip, and the other end of the bimetallic strip is fixed inside the shell; the static contact which is opposite to the movable contact is welded on the heating bottom plate; an opening is formed on the insulating paper, and the movable contact can conveniently pass through the opening to contact the static contact; and the heat on the heating bottom plate is conducted onto the bimetallic strip above the heating bottom plate through the opening.The invention is mainly characterized in that the bottom plate is an integrated flat plate made of heating material, and a hollow-out S-shaped or Z-shaped current path is arranged on the bottom plate.Compared with filamentous heating elements, the current temperature protector which adopts the flat plate type heating bottom plate simplifies the production technology, thus the structure of the protector is more compact, and the volume of the protector is smaller. Meanwhile, the sensitivity of current protection of the protector is improved.
Description
technical field [0001] The invention relates to a current temperature protector, which is mainly used in the field of household appliances. Background technique [0002] Common thermal protectors such as figure 2 , including shell 1', bimetal 2', movable contact 3', iron nail 4', insulating paper 5', static contact 6' and heating bottom plate 7'. When the external temperature rises to the set temperature of the thermal protector, the dish-shaped bimetal flips over, separates the moving and static contacts, and cuts off the circuit to achieve temperature protection. The function of the thermal protector is mainly temperature protection. Although it can achieve a certain current protection effect by changing the resistance of the bimetallic sheet, its sensitivity is low, and it is difficult to change the parameters during the production process of the protector factory, which limits its application range. [0003] Another current protector such as image 3 , such as the pat...
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IPC IPC(8): H01H37/52
Inventor 陈生谷章巨丰
Owner 杭州富阳华裕控制电器厂