Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Dedicated thyristor module for soft starters

A soft starter, thyristor technology, applied in starter parts, electric solid devices, semiconductor devices, etc., can solve the problems of large thyristor volume, high heat sink thermal resistance, and high overall cost, so as to improve product reliability and reduce Thermal resistance, weight reduction effect

Inactive Publication Date: 2016-08-03
EASTHOUSE ELECTRICAL TIANJIN CO LTD
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this structure are: the heat sink has high thermal resistance, the thyristor is bulky, and the overall cost is high

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
  • Dedicated thyristor module for soft starters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. Such as figure 1 As shown, a thyristor module dedicated to a soft starter includes two thyristors 1, two radiators 2, and a sealing ring 3. The algorithm of the radiator is as follows:

[0012] W=K*Q*T / β

[0013] Among them: W: the weight of the radiator; K: the reliability factor; Q: the heating power of the thyristor; T: the time for the thyristor to complete when the motor is started; β: the specific heat capacity of the radiator;

[0014] The weight of the radiator is calculated from the above formula, and then the two thyristors are connected in reverse parallel and directly crimped together according to the required shape. The thyristor and the radiator are packaged together in an insulating case, and the radiator is directly connected to an external power terminal and a control terminal.

[0015]...

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 the technical field of motor soft starter manufacturing, and especially relates to a dedicated thyristor module for soft starters. The thyristor module comprises two thyristors and two radiators, and the two thyristors are reversely connected in parallel and clamped between the two radiators. The weight, size and cost of the radiators are reduced. The radiators achieve three functions, namely, a heat conduction function, a radiating function, and a function of sealing the thyristors and isolating the thyristors from air to prevent oxidation and function failure caused thereby. The radiators are directly and externally connected with a power terminal and a control terminal. The thermal resistance of the thyristors is reduced, the reliability of products is improved, the size of soft starters is reduced, and the cost of products is lowered.

Description

technical field [0001] The invention relates to the technical field of manufacturing soft starters for electric motors, in particular to a special thyristor module for soft starters. Background technique [0002] The traditional soft starter is to purchase ready-made thyristor modules or parallel thyristors, and then add a radiator to form a soft starter power module. Then, the starting voltage of the motor is controlled by controlling the conduction angle of the thyristor through the control circuit, so that the motor can start under the starting condition of soft torque, which has achieved the reduction of the impact of the motor on the power grid. The disadvantages of this structure are: high thermal resistance of the radiator, large volume of the thyristor, and high overall cost. Contents of the invention [0003] The object of the present invention is to invent a new algorithm for the radiator according to the characteristics of the short-time operation of the thyris...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02P1/02H01L23/367H01L25/07
CPCH02P1/02H01L23/367H01L25/07
Inventor 韩永清
Owner EASTHOUSE ELECTRICAL TIANJIN CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products