Unlock instant, AI-driven research and patent intelligence for your innovation.

Thermally responsive electric switches

A thermally responsive switch and switch technology, used in electrical switches, thermal switches, thermal switch components, etc., can solve problems such as flux melting and contamination of internal components of switches

Active Publication Date: 2013-02-27
翱泰温控器(惠州)有限公司
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, during normal or abnormal use, elevated temperatures can cause excess flux on the terminals to melt and subsequently flow to contaminate the internal components of the switch.

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
  • Thermally responsive electric switches
  • Thermally responsive electric switches
  • Thermally responsive electric switches

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0053] First Embodiment - Thermally Responsive Switch with Integral Heater

[0054] figure 1 is an exploded view of the first embodiment. The individual components are as follows. The base terminal board 11 is formed of a busbar material, and includes base terminals 12 . The base terminal board 11 includes molded retention features 16 and heater pads 14 for the first connection of the electric heaters 8 in series. The base contact plate 13 is formed of the same bus bar material as the base terminal plate 11 . The base contact plate 13 comprises a heater pad 14 for the second connection of the electric heaters 8 in series and a platform 15 to which the fixed contacts 10 are to be fitted.

[0055] The fixed electrical contact 10 will be fitted to the base contact plate 13 by a welding process, riveting or any other suitable method. The contacts may be made of silver alloy, silver-plated copper, silver wires, laminated contact strips or any other low resistance material suit...

no. 2 example

[0103] Second Embodiment - Thermally Responsive Switch Without Integral Heater

[0104] In some applications, it may not be necessary to include heater 8 to achieve performance requirements, so in the second embodiment it is provided with Figure 4b with 5b Thermally responsive switching of a single substrate plate 22 as described in detail in . Advantageously, the design of the components may allow a single base plate 22 to be molded and assembled to be interchanged with the two-piece base plates 11 & 13 .

[0105] The remaining switches will experience somewhat less heat than the first embodiment, but will still be subject to the extreme temperatures of the manufacturing line and / or application, and thus may still benefit from the materials detailed in the first embodiment, maintaining features and manufacturing technology improvements to benefit.

[0106] Terminals with Textured Faces

[0107] In motor applications where wires or conductors are soldered to the terminals...

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

PropertyMeasurementUnit
Heat deflection temperatureaaaaaaaaaa
Melting temperatureaaaaaaaaaa
Bending strengthaaaaaaaaaa
Login to View More

Abstract

A thermally responsive switch (1) comprises first and second electrical terminals (12, 24; 25), a thermally responsive switch actuator (6), and a housing comprising a first metal plate (4) in electrical contact with the first electrical terminal (24; 25), a second metal plate (11, 3; 22) in electrical contact with the second electrical terminal (12), and insulating material (9) disposed between the first and second metal plates (4, 11, 13; 22).

Description

technical field [0001] The present invention is concerned with improvements in thermally responsive electrical switches employing thermal actuators such as bimetallic elements, and is particularly, but not exclusively, concerned with thermally responsive switches employed in the overheating protection of electric motors. Background technique [0002] Many types of electrical switches using bimetallic actuators are known, as are many different forms of bimetallic switch actuators. Early bimetal switches employed only flat bimetal blades, which moved relatively slowly in response to temperature changes and caused arcing problems in the switch. A major advance in the art has been provided by the development of snap-acting bimetallic actuators, which are constructed as a centerpiece capable of moving in snap motion between relatively curved configurations. Concave bimetal elements. Various forms of snap-acting bimetallic actuators are known, such as for example disclosed in GB...

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): H01H1/58H01H37/04H01H37/54
CPCH01H37/04H01H1/58H01H2001/5894H01H37/5427H01H2009/0285H01H2037/5463H01H37/5418H01H37/14H01H71/08H01H71/164H01R4/028
Inventor 马克·海伍德安德鲁·里克斯哈姆马克·谢罗特
Owner 翱泰温控器(惠州)有限公司