Performance test device and method for temperature switch

A technology of temperature switch and testing equipment, applied in circuit breaker testing, measuring electricity, measuring devices, etc., can solve the problems of complicated heating and cooling devices, low testing efficiency, troublesome operation, etc., and achieve intuitive judgment, fast testing, The effect of high accuracy

Inactive Publication Date: 2016-05-04
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The invention provides a temperature switch performance testing equipment and method to solve the problems of traditional temper

Method used

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  • Performance test device and method for temperature switch

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Embodiment Construction

[0019] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] Embodiment of temperature switch performance testing equipment

[0021] figure 1 It is the structural schematic diagram of the embodiment of the temperature switch testing equipment of this embodiment, by figure 1 It can be seen that the temperature switch performance testing equipment of this embodiment includes a heating circuit, a temperature detection circuit and a temperature switch state indicating circuit. The device, the second power supply and the interface for connecting the temperature switch in series, and the temperature detection circuit is used for detecting the actual temperature of the resistance heating belt.

[0022] The heating circuit of this embodiment may include a digital ammeter for displaying the current of the heating circuit, so as to determine the heating speed of the resistance heating belt. A ...

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Abstract

The invention relates to a performance test device and method for a temperature switch. The device comprises a heating circuit, a temperature detecting circuit and a temperature switch status indicating circuit. The heating circuit comprises a first power supply and a resistance heating band. The temperature switch status indicating circuit comprises an indicating device, a second power supply, and an interface which are in successive series connection, wherein the interface is used for connecting the temperature switch. The temperature detecting circuit comprises a platinum thermal resistor which is pasted on the resistance heating band, and a digital ohmmeter which is connected to the platinum thermal resistor. The digital ohmmeter is powered by the second power supply. According to the method, the heating circuit is used for heating; the temperature detecting circuit is used for determining whether a switching threshold of the temperature switch is reached; when the switching threshold is reached, the temperature switch status indicating circuit is used for determining whether the temperature switch is normal or not. The device and method are easy to operate; the detection is quick and efficient; the detection result is visual and has high accuracy; the device and the method are compatible with multiple types of temperature switches.

Description

technical field [0001] The invention belongs to the technical field of electronic testing, and in particular relates to a temperature switch performance testing device and method. Background technique [0002] The temperature switch is a temperature switch that uses a bimetallic strip as a temperature sensing element. When the electrical appliance is working normally, the bimetallic strip is in a free state and the contacts are in a closed / open state. When the temperature rises to the operating temperature value, the bimetallic strip Metal elements are heated to generate internal stress and act quickly to open / close contacts, cut off / connect the circuit, and thus play a thermal protection role. When the temperature gradually drops to the specified temperature, the contact will automatically close / disconnect and return to normal working condition. Temperature switches are widely used in household appliance motors and electrical equipment, such as washing machine motors, air-...

Claims

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Application Information

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IPC IPC(8): G01R31/327
CPCG01R31/3277
Inventor 韦双喻波李号召盛军吴晓鸣张海澎
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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