CN203178426U - Relay detection apparatus - Google Patents
Relay detection apparatus Download PDFInfo
- Publication number
- CN203178426U CN203178426U CN 201320032399 CN201320032399U CN203178426U CN 203178426 U CN203178426 U CN 203178426U CN 201320032399 CN201320032399 CN 201320032399 CN 201320032399 U CN201320032399 U CN 201320032399U CN 203178426 U CN203178426 U CN 203178426U
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- relay
- magnetic field
- field signals
- circuit
- field signal
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Abstract
The utility model relates to a relay detection apparatus, comprising a relay driving module used for driving a relay to generate magnetic field signals; a sensor used for acquiring the magnetic field signals of the relay; a sampling magnetic leakage pulse circuit used for receiving the magnetic field signals acquired by the sensor and amplifying, adjusting, and processing the magnetic field signals; a shaping pulse width prolongation circuit used for receiving the magnetic field signals conditioned by the sampling magnetic leakage pulse circuit and broadening the magnetic field signals; and a processor used for receiving the magnetic field signals broadened by the shaping pulse width prolongation circuit and discriminating whether the sensor acquires the magnetic field signals or not and whether the sampling magnetic leakage pulse circuit receives the magnetic field signals or not. According to the utility model, whether a counter electromotive force absorption diode is missed, insufficiently soldered, or disabled in an electronic product can be determined by virtue of detecting whether the magnetic field signals exist in the electronic product equipped with the relay or not; and the relay detection apparatus is good in precision and is reliable, self electronic components of the electronic product are protected, the service life of the electronic product is prolonged, and interferences of electromagnetic radiation on application occasions are prevented.
Description
Technical field
The utility model relates to a kind of electric relay detection device, relates in particular to the good electric relay detection device of a kind of precision.
Background technology
Relay is a kind of usable range device very widely, and each working range of this device can be labeled on the nameplate of relay, to make things convenient for the user one by one.Relay generally is made up of iron core, coil, armature, contact spring sheet etc., add certain voltage at the coil two ends, will flow through certain electric current in the coil, thereby generation galvanomagnetic effect, armature will overcome the pulling force of return spring under the effect of electromagnetic attracting force inhales to iron core, thus the moving contact and the stationary contact adhesive that drive.The online interior magnetic field of situation lower armature of unwrapping the road, relay outage back can discharge to air gap with former magnetic strength, in the application of relay the back-emf absorption diode can be installed.
In the prior art, the electronic product that relay is used can't detect whether the back-emf absorption diode is installed under the situation by wireline inspection under the totally enclosed situation.Can there be the back-emf absorption diode of neglected loading, rosin joint, inefficacy in relay on pcb board, can cause the damage of relay like this, reduces the serviceable life of product.
The utility model content
The purpose of this utility model is to overcome the defective that prior art exists, and provides a kind of precision good electric relay detection device.
The technical scheme that realizes the utility model purpose is: electric relay detection device comprises:
Relay driving module is connected with relay, is used for driving relay and produces field signal;
Sensor is for the field signal of gathering relay;
Sampling leakage field pulsing circuit, the input end of described sampling leakage field pulsing circuit is connected with described sensor output terminal, is used for the field signal of receiving sensor collection and this field signal is amplified, adjusts processing;
The shaping pulsewidth prolongs circuit, and the input end that described shaping pulsewidth prolongs circuit is connected with described sampling leakage field pulsing circuit output terminal, for receiving the field signal after the conditioning of over-sampling leakage field pulsing circuit and should nursing one's health the back field signal and carry out broadening;
Processor, the input end of described processor is connected with the output terminal that described sensor, described sampling leakage field pulsing circuit, described shaping pulsewidth prolong circuit, for receiving through the field signal behind the shaping pulsewidth prolongation circuit broadening and differentiating whether described sensor collects field signal, whether described sampling leakage field pulsing circuit receives field signal.
Preferably, described sensor is the high impedance magnetic head.
Preferably, described processor is PLC.
Preferably, also comprise the relay mount pad, be provided with spacing between described relay mount pad and the described sensor.
Preferably, described spacing is 0.5～1mm.
The utlity model has positive effect: by in the electronic product that detects the relay application whether field signal being arranged; thereby judge whether this electronic product exists the situation of the back-emf absorption diode of neglected loading, rosin joint, inefficacy; precision is good and reliable; protected the electronic component of electronic product self; prolonged serviceable life; simultaneously, also prevented the interference of electromagnetic radiation to the application scenario.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below, wherein:
Fig. 1 is structural representation of the present utility model.
Wherein: 1, relay; 2, back-emf absorption diode; 3, sensor; 4, sampling leakage field pulsing circuit; 5, shaping pulsewidth prolongs circuit; 6, processor; 7, relay driving module.
Embodiment
Embodiment 1
As shown in Figure 1, the utlity model has a kind of electric relay detection device, comprising:
Relay driving module 7 is used for driving relay 1 and produces field signal;
Sensor 3 is for the field signal of gathering relay 1;
Sampling leakage field pulsing circuit 4, the input end of described sampling leakage field pulsing circuit 4 is connected with described sensor 3 output terminals, is used for the field signal of receiving sensor 3 collections and this field signal is amplified, adjusts processing;
The shaping pulsewidth prolongs circuit 5, and the input end that described shaping pulsewidth prolongs circuit 5 is connected with described sampling leakage field pulsing circuit 4 output terminals, for receiving the field signal after 4 conditionings of over-sampling leakage field pulsing circuit and should nursing one's health the back field signal and carry out broadening;
In above-described embodiment 1, described sensor 3 is the high impedance magnetic head, and described processor 6 is PLC.By in the electronic product that detects the relay application whether field signal being arranged; thereby judge whether this electronic product exists the situation of the back-emf absorption diode 2 of neglected loading, rosin joint, inefficacy; precision is good and reliable; protected the electronic component of electronic product self; prolonged serviceable life; simultaneously, also prevented the interference of electromagnetic radiation to the application scenario.
Embodiment 2
As preferred embodiment, all the other are identical with embodiment 1, and difference is, also comprises the relay mount pad that is connected with relay driving module 7, is provided with spacing between described relay mount pad and the described sensor 3, and described spacing is 0.5mm.
In above-described embodiment 2, be provided with spacing between relay mount pad and the sensor 3, applicable to the relay detection of different size, convenient.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. electric relay detection device is characterized in that, comprising:
Relay driving module is connected with relay, is used for driving relay and produces field signal;
Sensor is for the field signal of gathering relay;
Sampling leakage field pulsing circuit, the input end of described sampling leakage field pulsing circuit is connected with described sensor output terminal, is used for the field signal of receiving sensor collection and this field signal is amplified, adjusts processing;
The shaping pulsewidth prolongs circuit, and the input end that described shaping pulsewidth prolongs circuit is connected with described sampling leakage field pulsing circuit output terminal, and is described for receiving the field signal after the conditioning of over-sampling leakage field pulsing circuit and should nursing one's health the back field signal and carry out broadening;
Processor, the input end of described processor is connected with the output terminal that described sensor, described sampling leakage field pulsing circuit, described shaping pulsewidth prolong circuit, for receiving through the field signal behind the shaping pulsewidth prolongation circuit broadening and differentiating whether described sensor collects field signal, whether described sampling leakage field pulsing circuit receives field signal.
2. electric relay detection device according to claim 1 is characterized in that, described sensor is the high impedance magnetic head.
3. electric relay detection device according to claim 1 is characterized in that, described processor is PLC.
4. according to the arbitrary described electric relay detection device of claim 1-3, it is characterized in that, also comprise the relay mount pad that is connected with relay driving module, be provided with spacing between described relay mount pad and the described sensor.
5. electric relay detection device according to claim 4 is characterized in that, described spacing is 0.5～1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320032399 CN203178426U (en) | 2013-01-22 | 2013-01-22 | Relay detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320032399 CN203178426U (en) | 2013-01-22 | 2013-01-22 | Relay detection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203178426U true CN203178426U (en) | 2013-09-04 |
Family
ID=49075104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320032399 Expired - Fee Related CN203178426U (en) | 2013-01-22 | 2013-01-22 | Relay detection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203178426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316874A (en) * | 2014-11-13 | 2015-01-28 | 哈尔滨工业大学 | Device and method for testing electromagnetic pulse interference resistance of electromagnetic relay |
| CN104635155A (en) * | 2015-03-11 | 2015-05-20 | 哈尔滨工业大学 | Relay reliability estimation method based on Wiener process |
-
2013
- 2013-01-22 CN CN 201320032399 patent/CN203178426U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316874A (en) * | 2014-11-13 | 2015-01-28 | 哈尔滨工业大学 | Device and method for testing electromagnetic pulse interference resistance of electromagnetic relay |
| CN104635155A (en) * | 2015-03-11 | 2015-05-20 | 哈尔滨工业大学 | Relay reliability estimation method based on Wiener process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20190122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |