CN202066947U - Contact motion detecting device - Google Patents
Contact motion detecting device Download PDFInfo
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- CN202066947U CN202066947U CN2011201307536U CN201120130753U CN202066947U CN 202066947 U CN202066947 U CN 202066947U CN 2011201307536 U CN2011201307536 U CN 2011201307536U CN 201120130753 U CN201120130753 U CN 201120130753U CN 202066947 U CN202066947 U CN 202066947U
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- detection device
- microcontroller
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Abstract
The utility model relates to a contact motion detecting device, an input unit of the contact motion detecting device can transport a group of startup parameter signals to a microcontroller, and a phase extracting unit can extract phase information of a control AC and output a phase extraction signal to the microcontroller. The microcontroller can output a coil driving signal to a coil driving unit according to the above startup parameter signals and the phase extraction signal, the coil driving unit enable the control AC to be transported to an AC coil of the contact according to the above coil driving signal to thereby trigger the motion of the contact. A collection unit can collect the motion information of the contact and output a collection signal to the microcontroller, the microcontroller can analyze and compare the collection signal to calculate the motion performance of the contact and transform the above information into a display signal to send to a display unit, and the display unit can display the motion performance detection result of the contact according to the above display signal. By using the contact motion detecting device, the startup phase of the AC coil can be controlled accurately, the measurement process is simple, and the measurement result is accurate.
Description
Technical field
The utility model relates to a kind of contact action detection device, relates in particular to a kind of contact action detection device that is used for A.C. contactor or AC relay.
Background technology
The contact performance of A.C. contactor, AC relay is the index request of fundamental sum most critical in the design and use, the performance of contact, closely related as the startup phase place of the AC coil of bounce time, on-delay time, release delay time and contactor or relay.
Existing contact action detection device needs build measurement circuit when test temporarily, is subject to disturb, and can not accurately control the startup phase place of AC coil, measures inaccurately, and existing pick-up unit need use oscillograph, and measuring process is loaded down with trivial details.
Summary of the invention
The purpose of this utility model provides a kind of contact action detection device.It can accurately control the startup phase place of AC coil, and its measuring process is simple and measurement result is accurate.
The utility model provides a kind of contact action detection device, it comprises an input block, a phase extraction unit, a collecting unit, a microcontroller, a coil drive unit and a display unit: input block can receive outside input and carry one group of start-up parameter signal to microcontroller, the phase extraction unit can extract the phase information of control alternating current and carry a phase extraction signal to microcontroller, microcontroller can be exported a coil drive signal to coil drive unit according to above-mentioned start-up parameter signal and phase extraction signal, coil drive unit can make the control alternating current be delivered to AC coil according to above-mentioned coil drive signal, thereby triggers the contact action.Collecting unit can be gathered the action message of contact, and the output acquired signal is to microcontroller, microcontroller can be analyzed and compare acquired signal, thereby calculate the performance of contact, and being sent to display unit after above-mentioned information is converted into shows signal, display unit can show the performance testing result of contact according to above-mentioned shows signal.
In a kind of exemplary embodiment of contact action detection device, collecting unit applies the test voltage signal of a 5V direct current at the contact two ends.
In a kind of exemplary embodiment of contact action detection device, the contact action detection device also comprises a high speed signal processing unit, but the high speed signal processing unit is connected with the microcontroller signal with collecting unit, the high speed signal processing unit can be exported a contact performance signals according to acquired signal, and microcontroller can be converted into shows signal with the contact performance signals.The high speed signal processing unit can be field programmable gate array.The driving frequency of high speed signal processing unit can be 60MHz.
In a kind of exemplary embodiment of contact action detection device, the contact action detection device also comprises a trigger element, but trigger element is connected with high speed signal processing unit signal.
In a kind of exemplary embodiment of contact action detection device, coil drive unit comprises an insulated gate bipolar transistor.
In a kind of exemplary embodiment of contact action detection device, display unit is a LCD.
In a kind of exemplary embodiment of handing over the contact action detection device, the contact action detection device also comprises a storage unit, but storage unit is connected with the microcontroller signal.
Hereinafter will be in clear and definite understandable mode, the accompanying drawings preferred embodiment is further specified the above-mentioned characteristic of contact action detection device, technical characterictic, advantage and implementation thereof.
Description of drawings
The following drawings is only done the utility model and is schematically illustrated and explain, does not limit scope of the present utility model.
Fig. 1 is the structural representation of a kind of exemplary embodiment of contact action detection device.
Fig. 2 is the structural representation of the another kind of exemplary embodiment of contact action detection device.
Fig. 3 is a kind of workflow synoptic diagram of contact action detection device shown in Figure 1.
Label declaration
12 input blocks
14 phase extraction unit
16 collecting units
18 high speed signal processing units
19 trigger elements
26 coil drive unit
36 display units
38 storage unit
40 microcontrollers
50 contact action detection devices
61 contacts
62 AC coil
70 control AC power
72 control alternating currents
Embodiment
Understand for technical characterictic, purpose and effect to invention have more clearly, now contrast description of drawings embodiment of the present utility model.
Fig. 1 is the structural representation of a kind of exemplary embodiment of contact action detection device, as shown in Figure 1, contact action detection device 50 comprises an input block 12, phase extraction unit 14, collecting unit 16, microcontroller 40, a coil drive unit 26 and a display unit 36.Input block 12 can carry one group of start-up parameter signal to microcontroller 40, phase extraction unit 14 can extract the phase information of control alternating current 72 and carry a phase extraction signal to microcontroller 40, microcontroller 40 can be exported a coil drive signal to coil drive unit 26 according to above-mentioned start-up parameter signal and phase extraction signal, coil drive unit 26 can make control alternating current 72 be delivered to the AC coil 62 of contact according to coil drive signal, thereby triggers contact 61 actions.Collecting unit 16 can be gathered the action message of contact 61, and the output acquired signal is to microcontroller 40, microcontroller 40 can be analyzed and compare acquired signal, thereby calculate the performance of contact 61, and being sent to display unit 36 after above-mentioned information is converted into shows signal, display unit 36 can show the performance testing result of contact 61 according to above-mentioned shows signal.
Now schematically illustrate the workflow of the action detection device of contact shown in Fig. 1 50 in conjunction with Fig. 3.
S10. after beginning, at first phase extraction unit 14 and the coil drive unit 26 with contact action detection device 50 is connected to control AC power 70, coil drive unit 26 is connected with AC coil 62, whether coil drive unit 26 may command AC coil 62 are connected with control AC power 70, collecting unit 16 is connected with the two ends of contact 61, enters step S20 then.
S20. record pre-set start-up parameter tabulation in the microcontroller 40, microcontroller 40 is converted to shows signal with these parameter informations and sends on the display unit 36, display unit 36 shows these parameters, and the testing staff can contrast the start-up parameter tabulation of display unit 36 demonstrations by input block 12 each parameters of input.Parameter in the start-up parameter tabulation can comprise these factors that performance of contact is exerted an influence such as starting phasing degree, AC coil kind, manner of execution, trigger pip source.Input block 12 is the start-up parameter signal with above-mentioned start-up parameter information translation and is sent in the microcontroller 40, microcontroller 40 record above-mentioned parameter information, and these parameter informations are converted into shows signal on display unit 36, show, enter step S30 then.
S30. the testing staff opens the switch of control AC power 70, phase extraction unit 14 begins to extract the phase information of the control alternating current 72 of controlling AC power 70 outputs, and be that the phase extraction signal is delivered to microcontroller 40 in real time with these information translation, phase information with real-time detection control alternating current 72 enters step S40 then.
S40. the microcontroller 40 start-up parameter signal that begins to import among the phase extraction signal that will import among the S30 and the S20 is compared in real time, after the phase information and start-up parameter information matches of control alternating current 72, microcontroller 40 sends a coil drive signal to coil drive unit 26, enters step S50 then.
S50. after coil drive unit 26 receives the coil drive signal of microcontroller 40 outputs, connect control AC power 70 and AC coil 62, make control alternating current 72 input to AC coil 62 with the startup phasing degree that pre-sets, thereby trigger the action of contact, its a kind of state is that the driving alternating current that AC coil 62 is sent by coil drive unit 26 produces electromagnetic force, and this electromagnetic force absorption contact 61 makes its closure; Another kind of state is to cut off the driving alternating current that coil drive unit 26 is sent, and AC coil 62 is discharged the absorption of contact 61 is disconnected.Enter step S60 then.
S60. when contact among the step S50 moves, be connected in the action of collecting unit 16 detection contact 61 at contact two ends, and will export the acquired signal relevant, enter step S70 then to microcontroller 40 with the contact action.
S70. microcontroller 40 is handled the acquired signal of importing among the calculation procedure S60, can calculate and the corresponding contact bounce time of importing by input block 12 of startup phasing degree by this acquired signal, and the coil drive signal among the integrating step S40 calculates the on-delay time and the release delay time of contact.And the testing result that aforementioned calculation goes out is converted into shows signal is delivered to display unit 36, enter step S80 then.
S80. display unit 36 shows the testing result of contact 61, enters step S90.
S90. detection of end.
Use the contact action detection device, can accurately control the startup phase place of AC coil, its measuring process is simple and measurement result is accurate.
In a kind of exemplary embodiment of contact action detection device, collecting unit comes the action message of detection contact by the test voltage signal that the two ends at contact apply a 5V direct current, puts on the contact test voltage voltage of signals value to 15V but can change.
Wherein, display unit 36 can be any display device, for example is LCD.Coil drive unit 26 can comprise insulated gate bipolar transistor, be used for coil drive signal is converted into the AC driving signal, and the AC driving signal sent to AC coil, difference according to the design needs, coil drive unit 26 also can be other structures, as long as can finish above-mentioned functions.
Fig. 2 has shown the another kind of exemplary embodiment of contact action detection device, as shown in Figure 2, contact action detection device 50 also comprises a high speed signal processing unit 18, but high speed signal processing unit 18 is connected with microcontroller 40 signals with collecting unit 16, high speed signal processing unit 18 can be exported a contact performance signals according to acquired signal, microcontroller 40 can be converted into shows signal with the contact performance signals, to show the testing result of contact by display unit.
High speed signal processing unit 18 can in time be caught very short contact action message, so as more timely, handle acquired signal more accurately, alleviate the burden of microcontroller 40.High speed signal processing unit 18 can adopt FPGA (gate array can be edited in the scene), and its driving frequency is 60MHz, in order to handle acquired signal more efficiently.
As shown in Figure 2, contact action detection device 50 can also comprise a trigger element 19, but trigger element 19 is connected with high speed signal processing unit 18 signals, in above-mentioned steps S30, operating personnel send trigger pip by trigger element 19 to high speed signal processing unit 18, and high speed signal processing unit 18 sends to microcontroller 40 with this trigger pip by a control command.Trigger element 19 can be a command signal that starts the switch of contact action detection device or come from other equipment.
As shown in Figure 2, contact action detection device 50 can also comprise a storage unit 38, but storage unit 38 is connected with microcontroller 40 signals, in above-mentioned steps S70, microcontroller 40 can send to the testing result that calculates storage unit 38, with the storage testing result, when the testing result of needs before browsing, can access and check.
The contact action detection device can accurately be controlled the startup phase place of AC coil, can guarantee measurement result, and its measuring process is simple, need not to use oscillograph.The contact action detection device can use the contact at single-phase or polyphase ac electric contactor or relay to detect.
In this article, " schematically " expression " is served as example, example or explanation ", any diagram, the embodiment that is described to " schematically " in this article should be interpreted as a kind of preferred or have more the technical scheme of advantage.
Be to be understood that, though this instructions is described according to each embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of instructions only is for clarity sake, those skilled in the art should make instructions as a whole, technical scheme among each embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate combination.
Above listed a series of detailed description only is specifying at feasibility embodiment of the present utility model; they are not in order to limiting protection domain of the present utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection domain of the present utility model.
Claims (9)
1. contact action detection device (50) is characterized in that it comprises:
Input block (12), described input block (12) receive outside input and export one group of start-up parameter signal;
Phase extraction unit (14), described phase extraction unit (14) extracts the phase information of control alternating current (72) and exports a phase extraction signal;
Collecting unit (16), described collecting unit (16) is gathered the action message of described contact (61), and exports an acquired signal;
Microcontroller (40), described microcontroller (40) is exported a coil drive signal according to described start-up parameter signal and described phase extraction signal, and described microcontroller (40) is exported a shows signal according to described acquired signal;
Coil drive unit (26), described coil drive unit (26) makes described control alternating current (72) be delivered to the AC coil (62) of described contact according to described coil drive signal, thereby triggers described contact (61) action;
Display unit (36), described display unit (36) shows the testing result of described contact (61) according to described shows signal.
2. contact action detection device according to claim 1 (50), wherein, described collecting unit (16) applies the test voltage signal of a 5V direct current at described contact two ends.
3. contact action detection device according to claim 1 (50), wherein, described contact action detection device (50) also comprises:
A high speed signal processing unit (18), described high speed signal processing unit (18) is connected with described microcontroller (40) signal with described collecting unit (16), described high speed signal processing unit (18) is exported a contact performance signals according to described acquired signal, and described microcontroller (40) is converted into described shows signal with described contact performance signals.
4. contact action detection device according to claim 3 (50), wherein, described high speed signal processing unit (18) is a field programmable gate array.
5. contact action detection device according to claim 4 (50), wherein, the driving frequency of described high speed signal processing unit (18) is 60MHz.
6. contact action detection device according to claim 3 (50) wherein, also comprises a trigger element (19), and described trigger element (19) is connected with described high speed signal processing unit (18) signal.
7. contact action detection device according to claim 1 (50), wherein, described coil drive unit (26) comprises an insulated gate bipolar transistor.
8. contact action detection device according to claim 1 (50), wherein, described display unit (36) is a LCD.
9. contact action detection device according to claim 1 (50) wherein, also comprises a storage unit (38), and described storage unit (38) is connected with described microcontroller (40) signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201307536U CN202066947U (en) | 2011-04-28 | 2011-04-28 | Contact motion detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201307536U CN202066947U (en) | 2011-04-28 | 2011-04-28 | Contact motion detecting device |
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| CN202066947U true CN202066947U (en) | 2011-12-07 |
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| CN2011201307536U Expired - Lifetime CN202066947U (en) | 2011-04-28 | 2011-04-28 | Contact motion detecting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830348A (en) * | 2012-08-21 | 2012-12-19 | 江苏华德电力科技有限公司 | Bounce testing device for single-coil magnetic-latching relay and test method of bounce testing device |
| CN103761855A (en) * | 2014-02-15 | 2014-04-30 | 福州大学 | Contact bounce and actuation time test system based on power line communication |
-
2011
- 2011-04-28 CN CN2011201307536U patent/CN202066947U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830348A (en) * | 2012-08-21 | 2012-12-19 | 江苏华德电力科技有限公司 | Bounce testing device for single-coil magnetic-latching relay and test method of bounce testing device |
| CN103761855A (en) * | 2014-02-15 | 2014-04-30 | 福州大学 | Contact bounce and actuation time test system based on power line communication |
| CN103761855B (en) * | 2014-02-15 | 2016-06-01 | 福州大学 | A kind of based on power carrier communication contact bounce and opening time test macro |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |
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| CX01 | Expiry of patent term |