CN204666723U - A kind of proving installation of the insulating material based on radiation source mode - Google Patents
A kind of proving installation of the insulating material based on radiation source mode Download PDFInfo
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- CN204666723U CN204666723U CN201520117469.3U CN201520117469U CN204666723U CN 204666723 U CN204666723 U CN 204666723U CN 201520117469 U CN201520117469 U CN 201520117469U CN 204666723 U CN204666723 U CN 204666723U
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- insulating material
- contact resistance
- radiation source
- servomotor
- mcu controller
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Abstract
The utility model discloses a kind of proving installation of the insulating material based on radiation source mode, and described device comprises: for the radiation source of the electric spark in Reality simulation environment; For the servomotor that electrical contact contacts or is separated; For the control assembly of servomotor; For measuring the measuring contact resistance circuit of contact resistance; For the MCU controller of whole device; The utility model by calibrated radiation source analog electrical spark, judges the impact of insulating material on electrical contact electric property by the change in resistance of electrical contact contact resistance, and each influence factor all can standardization, to realize the selection of insulating material.Testing conditions objective standard of the present utility model, testing result can repeat, and reliability is strong.
Description
Technical field
The utility model relates to a kind of field tests of insulating material, particularly relates to a kind of proving installation affected electrical contact performance based on the insulating material of radiation source mode.
Background technology
Power industry is fast-developing, brings numerous facility to other industry, but taking place frequently of electrical fire accident, also bring very large loss and inconvenience to enterprise's production, resident living.Electric wiring and consumer, through long running overload or there is the situations such as bad electrical connection, cause insulation course to occur the problems such as aging, damaged and loose contact, just may cause electrical hazard.The reliability of insulating material is the important foundation of electrical equipment safe and stable operation, and therefore, it is significant for carrying out insulating material to the testing evaluation that electrical contact performance affects.
Insulating material can part volatilize under high thermal environment, is deposited on electrical contact equipment surface, causes burden to circuit, have an impact to electrical contact surface contact resistance.At present, what mainly pay close attention to the detection of insulating material is the mechanical loss of insulating material itself, (Chinese Patent Application No.: 201210510916.2), a kind of mode of standard does not detect insulating material in Electical connector to the impact that electrical contact performance causes to the problem such as aging.Therefore a kind of standardized mode is proposed to detect the impact of insulating material on electrical contact performance.
Utility model content
For solving the deficiency that existing insulating material detects electrical contact performance impact, the purpose of this utility model be to provide a kind of insulating material on electrical contact performance affect can standardized proving installation, calibrated radiation source is utilized to carry out electric spark in Reality simulation environment, and measure the electrical contact surface contact resistance value under different insulative material by four-terminal method, analyze insulating material to affect electrical contact performance, to realize the selection to insulating material.
For achieving the above object, the utility model will adopt following technical scheme:
The utility model provides a kind of proving installation of the insulating material based on radiation source mode, comprising:
For the radiation source of the electric spark in Reality simulation environment;
For the servomotor that electrical contact contacts or is separated;
For the control assembly of servomotor;
For measuring the measuring contact resistance circuit of contact resistance;
For the MCU controller of whole device; Wherein:
MCU controller sends signal to the control assembly for servomotor, control the run duration of described servomotor, speed and direction, MCU controller is according to the frequency detected contact resistance of setting, send a signal to contact resistance testing circuit, unlatching contact resistance detects, and detection signal is back to the preservation of MCU controller.
Preferably, described device comprises hermetical testing case further, and the support of described radiation source, measured insulating material, electrical contact material and electrical contact is all arranged in hermetical testing case, and hermetical testing case ensure that the test environment of insulating material is constant temperature.
Preferably, being placed with temperature controller in described hermetical testing case, is that the electric property of carrying out at a constant temperature detects to ensure that insulating material detects.
Preferably, the described control assembly for servomotor can adopt motor servo driver.
Preferably, described MCU controller, a test contact resistance after N contact material contact at interval.MCU controller produces a road control signal to motor servo driver, for controlling servomotor run duration, speed and direction, simultaneously to electrical contact frequency of exposure counting, when arriving N time, send a signal to contact resistance testing circuit, open contact resistance and detect.
Preferably, the output signal of described contact resistance testing circuit connects filtering and amplifying circuit signal input part, and the output terminal of filtering and amplifying circuit is connected to MCU controller.
Preferably, in described MCU controller, being provided with toggle switch, when changing insulating material, changing toggle switch value, the corresponding toggle switch value of a kind of insulating material.
Preferably, store lower each contact resistance measured in described MCU controller, can obtain same insulating material at different temperatures, contact resistance over time, also can obtain different insulative material at the same temperature, and contact resistance over time.
Owing to have employed technique scheme, the beneficial effects of the utility model are:
The utility model has filled up original technology deficiency in this respect, under identical radiation intensity, to the detection of the contact resistance of the contact material under often kind of insulating material, by contact resistance feature over time, judge whether this insulating material is adapted at using in mesolow electric switch.
Accompanying drawing explanation
Fig. 1 is the equipment sketch of the utility model embodiment.
In figure, 1 is insulating material, and 2 is radiation sources, and 3 is moving contacts, and 4 is static contacts, and 5 is fixed supports, and 6 is spring levers, and 7 is cam gears, and 8 is servomotors, and 9 is measuring contact resistance circuit, and 10 is MCU controllers, and 11 is test boxs, and 12 is equipment boxes.
Embodiment
Be further described the technical solution of the utility model below, the following description is only the use understanding technical solutions of the utility model, and be not used in and limit scope of the present utility model, protection domain of the present utility model is as the criterion with claims.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of proving installation of the insulating material based on radiation source mode, in figure: as the insulating material 1 of tested object, moving contact 3 and static contact 4, and for the fixed support 5 of fixing dynamic and static contact, described device comprises:
For producing the radiation source 2 of electric spark in Reality simulation environment;
For controlling the servo electrical machinery system of moving contact motion, comprise servomotor 8, cam 7, spring lever 6;
For the control assembly of servomotor, as servomotor controller;
For measuring the measuring contact resistance circuit 9 of contact resistance;
For the MCU controller 10 of whole device; Wherein:
Described MCU controller 10 connects the described control assembly for servomotor, and the described control assembly for servomotor connects the described servomotor 8 contacting for electrical contact or be separated; Described MCU controller 10 connects described for measuring the measuring contact resistance circuit 9 of contact resistance; Described MCU controller 10 sends signal to the described control assembly for servomotor, control the run duration of described servomotor 8, speed and direction, MCU controller 10 is according to the frequency detected contact resistance of setting, send a signal to described contact resistance testing circuit 9, unlatching contact resistance detects, and detection signal is back to described MCU controller 10 and preserves.
In the present embodiment, described measuring contact resistance circuit 9 is for measuring contact resistance, and driven, static contact 3,4 is drawn in a wire access measuring contact resistance circuit input end respectively, receives the input end of MCU controller 10 to the signal measured after processing.
In the present embodiment, MCU controller 10 sends a signal to motor servo driver, control servomotor works, cam gear 7 is at the drop-down spring base 6 of moving of the drive of servomotor, moving contact is moved with a speed, dynamic and static contact is separated simultaneously, after certain number of times, opens measuring contact resistance circuit.
In the present embodiment, in described MCU controller 10, there is the control signal of servomotor and measuring contact resistance circuit, export motor servo driver and measuring contact resistance circuit to from MCU controller 10 respectively.Motor servo driver, for controlling servomotor motion, from MCU controller Received signal strength, connects servomotor.Measuring contact resistance circuit receives enabling signal from MCU controller, and the contact resistance signal detected can return MCU controller after treatment and store.
In the present embodiment, described MCU controller 10 there is toggle switch, needing when changing a kind of insulating material to change toggle switch value, often kind of corresponding toggle switch value of material.
As a preferred implementation, described device comprises hermetical testing case 11 further, the support of described radiation source, measured insulating material, electrical contact material and electrical contact is all arranged in hermetical testing case 11, and hermetical testing case 11 ensure that the test environment of insulating material is constant temperature.Being placed with temperature controller in described hermetical testing case 11, is that the electric property of carrying out at a constant temperature detects to ensure that insulating material detects.
With reference to Fig. 1, during test, insulating material is placed in hermetical testing case 11, dynamic and static contact supporting fixes contact material respectively, sets servomotor movement velocity, time in MCU controller 10, and band moving cam rotates, pull spring lever, drive moving contact moves, and when the arrival of dynamic/static contact frequency of exposure requires, measuring contact resistance circuit 9 is started working.
The interval times that contact resistance is tested, the toggle switch sequence number that often kind of insulating material is corresponding are set in MCU controller 10, the each contact resistance value measured of record, when contact resistance is greater than 1 milliohm, counter value adds 1, when counter value is greater than 5, automatic stopping test, record Test Information (radiation size, insulating material kind, time, dynamic/static contact frequency of exposure, dynamic/static contact contact).
Above-mentioned proving installation, when testing use, operates according to following steps:
1. hermetical testing case is formulated, to ensure the isoperibol of testing.
2. adopt movement velocity and the direction of Serve Motor Control moving contact, servomotor direction of motion, speed are set by MCU controller 10, drive the motion of moving contact, thus reach the unlatching of dynamic and static contact, closed object.The contact frequency of contact material, toggle switch numbering and insulating material corresponding relation is set in MCU controller 10;
3. radiation source amplitude size, isoperibol, startup test is set; Radiation source is the electric spark produced for electrical contact in Reality simulation environment, all works in whole test link.
4. in MCU controller 10, set dynamic/static contact surface contacted resistance detect frequency, when the arrival of dynamic/static contact frequency of exposure requires, MCU controller 10 sends a signal to measuring contact resistance circuit 9, measuring contact resistance circuit 9 measures the contact resistance between contact material by four-terminal method, after amplification filtering, the A/D modular converter signal obtained being sent to MCU controller 10 is converted to digital quantity;
5. MCU controller 10 judges, be greater than 1 milliohm for 5 times (can change in different this values of electric shock material when contact resistance value is continuous, occurrence draws by empirical data) time, assert insulation failure, record insulating material kind, test period, contact resistance value, test condition etc.; Change insulating material, change toggle switch value, restart test, move in circles, until all insulating material complete test.
The utility model has filled up original technology deficiency in this respect, under identical radiation intensity, to the monitoring of the contact resistance of the contact material under often kind of insulating material, by contact resistance feature over time, judge whether this insulating material is adapted at using in mesolow electric switch.
Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (6)
1. based on a proving installation for the insulating material of radiation source mode, it is characterized in that, described device comprises:
For the radiation source of the electric spark in Reality simulation environment;
For the servomotor that electrical contact contacts or is separated;
For the control assembly of servomotor;
For measuring the measuring contact resistance circuit of contact resistance;
For the MCU controller of whole device; Wherein:
Described MCU controller connects the described control assembly for servomotor, and the described control assembly for servomotor connects the described servomotor contacting for electrical contact or be separated; Described MCU controller connects described for measuring the measuring contact resistance circuit of contact resistance; Described MCU controller sends signal to the described control assembly for servomotor, control the run duration of described servomotor, speed and direction, MCU controller is according to the frequency detected contact resistance of setting, send a signal to described contact resistance testing circuit, unlatching contact resistance detects, and detection signal is back to the preservation of described MCU controller.
2. the proving installation of the insulating material based on radiation source mode according to claim 1, it is characterized in that, described device comprises hermetical testing case further, and the support of described radiation source, measured insulating material, electrical contact material and electrical contact is all arranged in hermetical testing case.
3. the proving installation of the insulating material based on radiation source mode according to claim 2, is characterized in that, is placed with temperature controller in described hermetical testing case.
4. the proving installation of the insulating material based on radiation source mode according to claim 1, is characterized in that, the described control assembly for servomotor adopts motor servo driver.
5. the proving installation of the insulating material based on radiation source mode according to claim 1, it is characterized in that, the output signal of described contact resistance testing circuit connects filtering and amplifying circuit signal input part, and the output terminal of filtering and amplifying circuit is connected to MCU controller.
6. the proving installation of the insulating material based on radiation source mode according to any one of claim 1-5, it is characterized in that, in described MCU controller, be provided with toggle switch, when changing insulating material, change toggle switch value, the corresponding toggle switch value of a kind of insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520117469.3U CN204666723U (en) | 2015-02-27 | 2015-02-27 | A kind of proving installation of the insulating material based on radiation source mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520117469.3U CN204666723U (en) | 2015-02-27 | 2015-02-27 | A kind of proving installation of the insulating material based on radiation source mode |
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| Publication Number | Publication Date |
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| CN204666723U true CN204666723U (en) | 2015-09-23 |
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| CN201520117469.3U Active CN204666723U (en) | 2015-02-27 | 2015-02-27 | A kind of proving installation of the insulating material based on radiation source mode |
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| CN (1) | CN204666723U (en) |
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2015
- 2015-02-27 CN CN201520117469.3U patent/CN204666723U/en active Active
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