CN106353672A - Judging device for switch malfunction of operating post - Google Patents
Judging device for switch malfunction of operating post Download PDFInfo
- Publication number
- CN106353672A CN106353672A CN201610693013.0A CN201610693013A CN106353672A CN 106353672 A CN106353672 A CN 106353672A CN 201610693013 A CN201610693013 A CN 201610693013A CN 106353672 A CN106353672 A CN 106353672A
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- Prior art keywords
- operation post
- judgment means
- output
- power
- point
- Prior art date
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- 230000007257 malfunction Effects 0.000 title claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000009514 concussion Effects 0.000 claims description 26
- 239000003054 catalyst Substances 0.000 claims description 21
- 238000005538 encapsulation Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 208000033999 Device damage Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
Abstract
The invention discloses a judging device for switch malfunction of operating post, the judging device is connected with a switch circuit of the operating post, the switch circuit comprises a vibrating generator and a power detector under electrical connection, the vibrating generator is under parallel connection with the normally open contact of the enable position; when transmitting power, signal transfer output contacts the 1 and 2 open circuits, and when the normally open contact of the enable position is open, the current of the vibrating generator returns to the operating post for the open circuit, thus, there is no current flowing through, the power detector detects the first magnitude of power as approximately 0; when the normally open contact of the enable position is close, the current of the vibrating generator flows through the operating post to form loop, and the power detector detects the second magnitude of power, the second magnitude of power is far more than the first magnitude of power. The judging device for switch malfunction of operating post provided can conveniently detect whether the operating post switch is under normal working state, so as to avoid the accident occurrence in the power cut and transmission process.
Description
Technical field
The present invention relates to a kind of Operation switch, more particularly, to a kind of operation post malfunctioning switch judgment means, belong to electrical equipment and set
Standby field.
Background technology
The start-stop of Electric Traction equipment, the instruction that will accept command switch just enables.In real world applications, typically exist
Set an operation post by equipment, realize the start-stop of electrical equipment by the switch on operation operation post or button.In practical application,
Especially when site environment is messy, dust is relatively more, safeguard not in place in the case of it may occur that " startup " opened point card of instructing
In the phenomenon of make position, and outward appearance all goes well.In this case, equipment will stop can not stopping any more, send a telegram here when there is power-off again
Situation, equipment can operate automatically, is likely to result in extremely serious device damage, or even life casualty accident, and consequence is very tight
Weight.
Concrete application, for example, see the operation post on-off circuit a shown in Fig. 1, including the normally closed point of stop position, start bit
Put opened point and catalyst, the coil of described stop position normally closed point tan, startup position opened point qan and catalyst kmn
It is sequentially connected in series, and the normally opened contact of described catalyst kmn is in parallel with described startup position opened point qan, if this operation post switch
When circuit a is under normal operating conditions, press start button, start position opened point qan closure, controller kmn obtains electric, control
Loop processed conducting, when pressing stop button, stop position normally closed point tan opens, and control loop disconnects, and equipment stops operation.
If this operation post on-off circuit a occurs the opened point that " startup " instructs to be stuck in the phenomenon of make position, now, control loop is all the time
In the conduction state, when pressing stop button, control loop disconnects, but one looses one's grip and recovered conducting state, thus equipment is no
Method is closed down, additionally, when the situation occurring power-off to send a telegram here again, equipment naturally also can operate automatically, thus it is hidden to there is larger safety
Suffer from.
In order to avoid above-described accident occurs, the state that one kind can monitor the opened point of " startup " command switch is
No normal device urgently occurs.
Content of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to a kind of operation post malfunctioning switch judgment means, with gram
Take deficiency of the prior art.
To achieve these goals, technical scheme is as follows:
A kind of operation post malfunctioning switch judgment means, this operation post on-off circuit includes warning output contact, stop position
Normally closed point, startup position opened point and catalyst, described warning output contact, the normally closed point of stop position, startup position are normally opened
The coil of point and catalyst is sequentially connected in series, and a normally opened contact of described catalyst is with described startup position opened point simultaneously
It is characterised in that this judgment means is connected with this operation post on-off circuit, it includes concussion generator and the work(being electrically connected with to connection
Rate detector, described concussion generator is in parallel with described startup position opened point；
When described startup position opened point is opened, the electric current of described concussion generator flows through this operation post on-off circuit,
Loop cannot be formed because described warning output contact disconnects, described power detector detects the first performance number, described first
Performance number is substantially zeroed；
When described startup position opened point closes, the electric current of described concussion generator flows through this operation post on-off circuit,
And flow back to described concussion generator and form loop, described power detector detects the second performance number, described second performance number
Long-range described first performance number.
Preferably, this judgment means also includes judging output unit, described judgement output unit and described power detector
It is electrically connected with, it is used for judging and export the status signal of this operation post on-off circuit.
Further, described judgement output unit includes relay and light emitting diode, when power transmission described startup position
When opened point is opened, described relay contact is output as disconnecting, and light emitting diode does not work, and after 40 seconds, relay contact is output as closing
Close；When described startup position opened point closes, described relay contact time delay is output as after 30 seconds disconnecting, light emitting diode
Bright.
The function that the combination of two above function reaches: when power transmission, relay contact is output as disconnecting it is ensured that catalyst
Not adhesive, if now start position opened point opened, after 40 seconds, relay contact is output as closing, and control circuit enters normal
State (can be with start-stop)；When power transmission, relay contact is output as disconnecting it is ensured that catalyst not adhesive, if now start bit
Put opened point closure, after 30 seconds, relay contact is output as disconnecting (even if also will not close after 40 seconds) it is ensured that catalyst is always
Not adhesive, equipment is inoperative；
Preferably, described concussion generator, power detector and judge output unit modularized encapsulation for integrally, thus
Form failure judge module.
Preferably, (panel of former switch board foremost, may by light pricker connecting cabinet card plate for described judgement output unit
Equipped with display lamp, button, switch etc., it is man machine operation interface, cabinet disk is configured when manufacturing), press for indicating that operation post starts
The malfunction of button.
Preferably, the described stop button judging that output unit is necessarily connected to Electric Traction equipment by warning output line
Loop.When Electric Traction equipment is in operating condition, it is electric that this failure judgment means judge that Enable Pin obtains, and locking warning output is touched
Point is in closure state, and failure judgment means are not involved in judging in itself.
Preferably, two connecting lines of described concussion generator pass through an electric capacity with described startup position opened point simultaneously respectively
Connection.
Compared with prior art, the operation post malfunctioning switch judgment means that the present invention provides at least have the advantage that
1) the operation post malfunctioning switch judgment means being provided by the present invention easily can be examined by the size of performance number
Measure whether operation post switch is in normal working condition, thus avoid the generation of the accidents such as device damage, casualties.
Specifically, when startup position opened point is opened, the electric current of concussion generator flows through this operation post on-off circuit, because of warning output
Contact disconnects and cannot form loop, and power detector detects the first performance number, and the first performance number is substantially zeroed, according to this work(
Rate value can reversely be inferred to start position opened point and be in as open mode, and that is, operation post on-off circuit is normal；Work as start bit
When putting opened point closure, the electric current of concussion generator flows through this operation post on-off circuit, and flows back to concussion generator and formed back
Road, this impedance loop very little, electric current is very big, and power hungry is very big, and the second performance number that is, power detector detects is very big, root
Can reversely be inferred to start position opened point according to this performance number and be in as closure state, that is, operation post on-off circuit be in stuck
State.
2) preferred, this judgment means also includes judging output unit, judges that output unit is used for judging and export this behaviour
Make the status signal of post on-off circuit.Specifically, when Electric Traction equipment is in operating condition, this failure judgment means judge
Enable Pin obtain electric, locking warning output contact in closure state, and failure judgment means in itself be not involved in judge.When power transmission,
When startup position opened point is opened, relay contact is output as disconnecting, and light emitting diode does not work, relay contact output after 40 seconds
For closing, control loop is in operation armed state, can be with normal operating；When starting position opened point closure, relay touches
Point time delay was output as disconnecting after 30 seconds, and light emitting diode is bright.The function that the combination of two above function reaches: when power transmission, continue
Appliance contact is output as disconnecting it is ensured that catalyst not adhesive, if now start position opened point opened, after 40 seconds, relay touches
Point is output as closing, and control circuit enters normal condition (can be with start-stop)；When power transmission, relay contact is output as disconnecting, really
Protect catalyst not adhesive, if now starting position opened point closure, after 30 seconds relay contact be output as disconnecting (even if 40 seconds
Also will not close afterwards) it is ensured that catalyst not adhesive always, equipment is inoperative；When Electric Traction equipment cannot stop, only
To pin stop button always more than 40 seconds, device just can judge whether can not stop due to what start button fault led to, such as
Fruit is that start button fault leads to, then can successfully stop, light emitting diode is lighted.
3) preferred, judge that output unit passes through light pricker connecting cabinet card plate, start position when judging that output unit exports
When the indication signal of opened point closure is to Electric Traction equipment, this indication signal is used for indicating the state of operation post.Certainly, according to
The requirement of user determines to connect and does not connect light pricker.
Brief description
In order to be illustrated more clearly that present configuration feature and technical essential, right with reference to the accompanying drawings and detailed description
The present invention is described in detail.
Fig. 1 is the schematic diagram of operation post on-off circuit of the prior art；
The schematic diagram of the operation post malfunctioning switch judgment means that Fig. 2 provides for the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the present embodiment, the technical scheme in embodiment is carried out specifically, clearly and completely retouch
State.
Shown in Figure 2, the embodiment of the invention discloses a kind of operation post malfunctioning switch judgment means, this operation post switch
Circuit includes warning output contact 1-2, stop position normally closed point tan, starts position opened point qan and catalyst kmn.Report to the police
The coil of output contact 1-2, stop position normally closed point tan, startup position opened point qan and catalyst kmn is sequentially connected in series, and
The normally opened contact of catalyst kmn is in parallel with starting position opened point qan, and this judgment means is connected with this operation post on-off circuit,
It includes concussion generator 11 and the power detector 12 being electrically connected with, and concussion generator 11 is with startup position opened point qan simultaneously
Connection；
When startup position opened point qan is opened, the current loop of described concussion generator is just opened a way to operation post, no current
Flow through, it is almost nil that power detector detects the first performance number；
When starting position opened point qan closure, the electric current of concussion generator 11 flows through this operation post on-off circuit a, and
Flow back to concussion generator 11 and form loop, power detector 12 detects the second performance number, long-range first work(of the second performance number
Rate value.
Preferably, this judgment means also includes judging output unit 13, judges output unit 13 and power detector 12 electricity
Property connect, it is used for judging and exporting status signal of this operation post on-off circuit a.
Further, judge that output unit 13 includes relay and light emitting diode, when power transmission and startup position opened point
When qan opens, described relay contact is output as disconnecting, and light emitting diode does not work, and after 40 seconds, relay contact is output as closing,
Control loop is in operation armed state, can be with normal operating；When starting position opened point qan closure, described relay touches
Point time delay was output as disconnecting after 30 seconds, and light emitting diode is bright.The function that the combination of two above function reaches: when power transmission, continue
Appliance contact is output as disconnecting it is ensured that catalyst not adhesive, if now start position opened point opened, after 40 seconds, relay touches
Point is output as closing, and control circuit enters normal condition (can be with start-stop), and light emitting diode does not work always；When power transmission, relay
Device contact is output as disconnecting it is ensured that catalyst not adhesive, if now starting position opened point closure, relay contact after 30 seconds
Be output as disconnecting (even if also will not close after 40 seconds), light emitting diode bright it is ensured that catalyst not adhesive always, equipment is not transported
Turn；
Preferably, shake generator 11, power detector 12 and judge that output unit 13 modularized encapsulation is overall for one, from
And form failure judge module.
Preferably, judge that output unit 13 passes through light pricker connecting cabinet card plate (panel of former switch board foremost, possible dress
Have display lamp, button, switch etc., be man machine operation interface, cabinet disk is configured when manufacturing), for indicating operation post start button
Malfunction.Certainly, determine to connect according to the requirement of user and do not connect light pricker；
Preferably, judge that output unit 13 is returned by the stop button that warning output line is necessarily connected to Electric Traction equipment
Road.When Electric Traction equipment is in operating condition, it is electric that this failure judgment means judge that Enable Pin obtains, and locks warning output contact
In closure state, and failure judgment means are not involved in judging in itself.
Preferably, two connecting lines of concussion generator 11 are in parallel with starting position opened point qan by an electric capacity respectively.
Further, when Electric Traction equipment cannot stop, as long as pinning stop button always more than 40 seconds, lose
Clever judgment means just can judge whether can not stop due to what start button fault led to, if start button fault leads to
, then can successfully stop, light emitting diode is lighted.
The operation principle of the present invention is as follows:
During power transmission, 1-2 output in warning output contact is locked as disconnecting, and light emitting diode is locked as not working, when startup position
When opened point qan is opened, now shake the electric current no loop of generator 11, so no current flows through, power detector 12 detects
The first performance number arriving is almost nil, can reversely be inferred to startup position opened point qan according to this performance number and be in as opening
State, that is, operation post on-off circuit a is normal；After 40 seconds, 1-2 output in warning output contact is changed into closing, now light emitting diode
Do not work.The electric current of oscillating circuit need to flow through c1-tan- warning output contact 1-2-fun-l- power supply-n-frn-kmn-c2, loop
Impedance is very big, electric current very little, the first performance number very little that power detector 12 detects.Decision circuitry continues to conclude that operation post is opened
Close circuit a normal.Warning output contact 1-2 output resume remains closed.Now whole control loop is in operation armed state,
The start stop operation of waiting operation people at any time.
When starting position opened point qan closure, the electric current of concussion generator 11 flows through this operation post on-off circuit a, and
Flow back to concussion generator 11 and form loop, specifically, the electric current of concussion generator 11 flows through successively: electric capacity c1- starts position
Opened point qan- electric capacity c2, thus forming described loop, this impedance loop very little, electric current is very big, and power hungry is very big, i.e. work(
The second performance number that rate detector 12 detects is very big, can reversely be inferred to start position opened point qan according to this performance number
It is in as closure state, that is, operation post on-off circuit a is in stuck state；After 30 seconds, warning output contact 1-2 is output as breaking
Open, but now light emitting diode is lighted.Even if after 40 second locking time arrived, warning output contact 1-2 output resume is output as breaking
Open.So, in this state, equipment is will not be automatically actuated, artificially goes unlatching to be also to open, and needs operation post
Fault solve after could normally start.
During equipment operation due to start position opened point qan be in cannot stop for closure state when,
To pin stop button always more than 30 seconds, device just can judge operation post fault, light emitting diode is lighted, warning output is touched
Point 1-2 output goes off and is always maintained at, and the stop button that comes loose also will not be restarted.
In sum, the operation post malfunctioning switch judgment means being provided by the present invention can be conveniently detected operation post
Whether switch is in normal working condition, the self-starting that prevents from sending a telegram here, the state such as cannot shut down, thus avoid device damage,
The generation of the accidents such as casualties.
Above-mentioned specific embodiment, technology design only to illustrate the invention and architectural feature are familiar with this it is therefore intended that allowing
The stakeholder of item technology can implement according to this, but above said content is not intended to limit protection scope of the present invention, every foundation
Any equivalence changes or modification that the spirit of the present invention is made, all should fall under the scope of the present invention.
Claims (7)
1. a kind of operation post malfunctioning switch judgment means, it is normal that this operation post on-off circuit includes warning output contact, stop position
Close point, startup position opened point and catalyst, described warning output contact, the normally closed point of stop position, startup position opened point
And the coil of catalyst is sequentially connected in series, and a normally opened contact of described catalyst is in parallel with described startup position opened point,
It is characterized in that, this judgment means is connected with this operation post on-off circuit, and it includes concussion generator and the power being electrically connected with
Detector, described concussion generator is in parallel with described startup position opened point；
When described startup position opened point is opened, the electric current of described concussion generator flows through this operation post on-off circuit, because of institute
State warning output contact to disconnect and loop cannot be formed, described power detector detects the first performance number, described first power
Value is substantially zeroed；
When described startup position opened point closes, the electric current of described concussion generator flows through this operation post on-off circuit, cocurrent
Return described concussion generator and form loop, described power detector detects the second performance number, and described second performance number is long-range
Described first performance number.
2. a kind of operation post malfunctioning switch judgment means according to claim 1 are it is characterised in that this judgment means is also wrapped
Include judgement output unit, described judgement output unit is electrically connected with described power detector, and it is used for judging and export this behaviour
Make the status signal of post on-off circuit.
3. a kind of operation post malfunctioning switch judgment means according to claim 2 are it is characterised in that described judgement output is single
Unit includes relay and light emitting diode, when power transmission and when described startup position opened point is opened, described relay contact output
For disconnecting, light emitting diode does not work, and described relay contact is output as closing after 40 sec；When described startup position opened point
During closure, described relay contact time delay is output as after 30 seconds disconnecting, and light emitting diode is bright.
4. a kind of operation post malfunctioning switch judgment means according to Claims 2 or 3 are it is characterised in that described concussion is sent out
Give birth to device, power detector and judge that output unit modularized encapsulation is overall for one, thus forming failure judge module.
5. a kind of operation post malfunctioning switch judgment means according to Claims 2 or 3 are it is characterised in that described judgement is defeated
Go out unit and pass through light pricker connecting cabinet card plate, for indicating the malfunction of operation post start-up circuit.
6. a kind of operation post malfunctioning switch judgment means according to Claims 2 or 3 are it is characterised in that described judgement is defeated
Go out the stop button loop that unit is connected to Electric Traction equipment by warning output line.
7. a kind of operation post malfunctioning switch judgment means according to claim 1 are it is characterised in that described concussion generator
Two connecting lines respectively pass through an electric capacity in parallel with described startup position opened point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610693013.0A CN106353672B (en) | 2016-08-19 | 2016-08-19 | Operation column switch failure judgment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610693013.0A CN106353672B (en) | 2016-08-19 | 2016-08-19 | Operation column switch failure judgment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106353672A true CN106353672A (en) | 2017-01-25 |
| CN106353672B CN106353672B (en) | 2024-02-27 |
Family
ID=57843692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610693013.0A Active CN106353672B (en) | 2016-08-19 | 2016-08-19 | Operation column switch failure judgment device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106353672B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106353672B (en) | 2024-02-27 |
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