CN103809113A - Electromagnetic relay mechanical life test device - Google Patents
Electromagnetic relay mechanical life test device Download PDFInfo
- Publication number
- CN103809113A CN103809113A CN201210441932.0A CN201210441932A CN103809113A CN 103809113 A CN103809113 A CN 103809113A CN 201210441932 A CN201210441932 A CN 201210441932A CN 103809113 A CN103809113 A CN 103809113A
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- Prior art keywords
- relay
- controlling unit
- chip controlling
- contact
- relay contact
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Abstract
The invention provides an electromagnetic relay mechanical life test device. A relay coil (A) converts electric energy into mechanical energy to allow relay contacts (B) to complete a contact pull-in action. A single chip microcomputer control unit (F) controls an AC-DC controllable power control (E) to simulate the actual condition of the relay contacts (B). A relay contact resistance testing circuit (C) tests resistance between contacts when the relay contacts (B) are in a pull-in state and transmits a parameter value to the single chip microcomputer control unit (F). The single chip microcomputer control unit (F) controls a relay drive circuit (D) and records a pulse number at the same time. When the data transmitted to the single chip microcomputer control unit (F) by the relay contact resistance testing circuit (C) is larger than a normal value, it shows that the mechanical service life of the relay contacts (B) comes to an end. The single chip microcomputer control unit (F) controls a display unit (G) to display the mechanical service life number of the electromagnetic relay.
Description
technical field:
The present invention relates to a kind of electromagnetic relay mechanical life test device, belong to electronic application field.
background technology:
Electromagnetic relay is a kind of electronic control device, it uses less electric current, adhesive and the disconnection that lower voltage is realized relay contact, in the time switching as electric signal, it has the advantages that contact resistance is little, signal is not almost affected, realize easily electrical isolation in the occasion that needs electrical isolation, moreover electromagnetic relay technology maturation is reliable, contact capacity is relatively large, cost is low, almost zero-power, and thermal value is little is more better than the electronic switches such as controllable silicon in high-power switching occasion.
Mainly contain one of two aspect the serviceable life that judges relay is electrical endurance, just refers to the life-span of the electric aspects such as the inductance of coil; Mechanical life on the other hand, it is mainly the life-span of contact, need mechanical life of electromagnetic relay long actual tests just can measure its actual mechanical life, test process more complicated, the mechanical life testing out also can be because of actual switching signal difference result difference.
summary of the invention:
Test difficult problem the mechanical life of electromagnetic relay in order to overcome, the present invention proposes a kind of electromagnetic relay mechanical life test device.
To achieve these goals, the present invention proposes following technical scheme:
A kind of electromagnetic relay mechanical life test device, comprise: relay coil (A), relay contact (B), relay contact resistance test circuit (C), relay drive circuit (D), AC-DC controllable electric power (E), Single-chip Controlling unit (F), display unit (G), as Fig. 1;
Relay coil (A) converts electrical energy into mechanical energy makes relay contact (B) complete contact adhesive action, AC-DC controllable electric power (E) analogue relay contact (B) actual condition is controlled in Single-chip Controlling unit (F), relay contact resistance test circuit (C) busy relay contact (B) resistance between contact in the time of adhesive sends parameter value to Single-chip Controlling unit (F), Single-chip Controlling unit (F) pilot relay driving circuit (D) is recording impulse number of times simultaneously, the data of passing to Single-chip Controlling unit (F) when relay contact resistance test circuit (C) illustrate while being greater than normal value that relay contact (B) arrives mechanical life, Single-chip Controlling unit (F) is controlled display unit (G) and is demonstrated electromagnetic relay number of times mechanical life.
Beneficial effect of the present invention:
Propose a kind of electromagnetic relay mechanical life test device, test difficult problem the mechanical life that overcomes electromagnetic relay.
accompanying drawing explanation:
Accompanying drawing 1 is composition schematic diagram of the present invention.
embodiment:
In order to make technical scheme of the present invention clearer, below in conjunction with drawings and Examples, the present invention is described in more detail, and instantiation described herein only, in order to explain the present invention, is not limited to the present invention.
embodiment:
Relay coil (A) converts electrical energy into mechanical energy makes relay contact (B) complete contact adhesive action, AC-DC controllable electric power (E) analogue relay contact (B) actual condition is controlled in Single-chip Controlling unit (F), relay contact resistance test circuit (C) busy relay contact (B) resistance between contact in the time of adhesive sends parameter value to Single-chip Controlling unit (F), Single-chip Controlling unit (F) pilot relay driving circuit (D) is recording impulse number of times simultaneously, the data of passing to Single-chip Controlling unit (F) when relay contact resistance test circuit (C) illustrate while being greater than normal value that relay contact (B) arrives mechanical life, Single-chip Controlling unit (F) is controlled display unit (G) and is demonstrated electromagnetic relay number of times mechanical life.
Claims (1)
1. an electromagnetic relay mechanical life test device, comprising: relay coil (A), relay contact (B), relay contact resistance test circuit (C), relay drive circuit (D), AC-DC controllable electric power (E), Single-chip Controlling unit (F), display unit (G), it is characterized in that: relay coil (A) converts electrical energy into mechanical energy makes relay contact (B) complete contact adhesive action, AC-DC controllable electric power (E) analogue relay contact (B) actual condition is controlled in Single-chip Controlling unit (F), relay contact resistance test circuit (C) busy relay contact (B) resistance between contact in the time of adhesive sends parameter value to Single-chip Controlling unit (F), Single-chip Controlling unit (F) pilot relay driving circuit (D) is recording impulse number of times simultaneously, the data of passing to Single-chip Controlling unit (F) when relay contact resistance test circuit (C) illustrate while being greater than normal value that relay contact (B) arrives mechanical life, Single-chip Controlling unit (F) is controlled display unit (G) and is demonstrated electromagnetic relay number of times mechanical life.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441932.0A CN103809113A (en) | 2012-11-08 | 2012-11-08 | Electromagnetic relay mechanical life test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441932.0A CN103809113A (en) | 2012-11-08 | 2012-11-08 | Electromagnetic relay mechanical life test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103809113A true CN103809113A (en) | 2014-05-21 |
Family
ID=50706173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210441932.0A Pending CN103809113A (en) | 2012-11-08 | 2012-11-08 | Electromagnetic relay mechanical life test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103809113A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406786A (en) * | 2014-12-06 | 2015-03-11 | 无锡高卓流体设备有限公司 | Mechanical life testing device for electromagnetic relay |
| CN105867236A (en) * | 2016-04-22 | 2016-08-17 | 南彦勃 | Intelligent control system of high-voltage circuit-breaker with self-diagnostic function |
| CN106772005A (en) * | 2016-12-12 | 2017-05-31 | 深圳市八戒电工技术有限公司 | A kind of relay contact life tests circuit and method |
| CN106980086A (en) * | 2017-05-17 | 2017-07-25 | 格力电器（武汉）有限公司 | Detection equipment and method for air conditioner electrical box |
-
2012
- 2012-11-08 CN CN201210441932.0A patent/CN103809113A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406786A (en) * | 2014-12-06 | 2015-03-11 | 无锡高卓流体设备有限公司 | Mechanical life testing device for electromagnetic relay |
| CN105867236A (en) * | 2016-04-22 | 2016-08-17 | 南彦勃 | Intelligent control system of high-voltage circuit-breaker with self-diagnostic function |
| CN106772005A (en) * | 2016-12-12 | 2017-05-31 | 深圳市八戒电工技术有限公司 | A kind of relay contact life tests circuit and method |
| CN106980086A (en) * | 2017-05-17 | 2017-07-25 | 格力电器（武汉）有限公司 | Detection equipment and method for air conditioner electrical box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |