CN206849780U - A kind of relay on-off detection circuit and the relay with the circuit - Google Patents
A kind of relay on-off detection circuit and the relay with the circuit Download PDFInfo
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- CN206849780U CN206849780U CN201720507946.6U CN201720507946U CN206849780U CN 206849780 U CN206849780 U CN 206849780U CN 201720507946 U CN201720507946 U CN 201720507946U CN 206849780 U CN206849780 U CN 206849780U
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- 238000001514 detection method Methods 0.000 title claims abstract description 91
- 235000012907 honey Nutrition 0.000 claims description 3
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- 230000007257 malfunction Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
Circuit is detected the utility model discloses a kind of relay on-off and there is the relay of the circuit, including contact voltage drop detection means, coil signal detection means, one multilevel iudge relay is in normal or failure state multilevel iudge device and signal output apparatus, the detection of contact voltage drop detection means obtains the contact voltage drop signal at relay contact both ends, the coil signal detection means detection obtains the coil pressure drop signal at relay coil both ends, contact voltage drop signal is inputted in multilevel iudge device with coil pressure drop signal, it is compared by multilevel iudge device and judges relay whether in normal or failure state.Relay on-off detects circuit, and relay package shell, relay coil, relay contact and relay on-off detection circuit set the relay finished product that the formula of linking into an integrated entity connects jointly.System failure point position can be quickly judged in time, and fault detection efficiency is high, and maintenance and easy to maintain, breakdown loss are low.
Description
Technical field
A kind of relay is the utility model is related to, more particularly, to a kind of relay detected to relay on-off state
Device.
Background technology
Relay is a kind of conventional electric control device, it be when the change of input energizing quantity reach regulation requirement when,
Make controlled volume that a kind of electrical equipment of predetermined Spline smoothing occur in electric output circuit.It has control system or input circuit
And by the interactive relationship between control system or output loop.It is commonly used in the control circuit of automation, relay exists
It is often used as going to control one kind " automatic switch " of high current running by low current in actual circuit, and is widely used in crowd
More occasions, play in circuit automatically adjust, safeguard protection, the effect such as change-over circuit.Because relay is with isolation features
Automatic switch element, therefore be widely used in remote control, remote measurement, communicate, automatically control, electromechanical integration, power electronics are set
It is one of most important control element in standby and Vehicle Electronic Control element, existing relay species is various, such as electromagnetism relay
Device, optical relay etc.；Wherein relay element has also been used in automobile manufacture, it is therefore an objective to for entering to vehicle mounted electrical apparatus
Row is effectively protected and controlled；But existing AUTOMOTIVE RELAY is detected and tested to relay contact break-make only before dispatching from the factory
Examine, and relay is not possess self detection on off operating mode and malfunction in itself, and this without suspected of relay in conduct
After the input actual use of electric control device, self the detection break-make and malfunction of itself are difficult to realize, both easily triggers electricity
Road failure occurs, and there is when control circuit breaks down, it is impossible to trouble point position is quick and precisely judged, to electricity
Road fault detect brings delay, is unfavorable for the maintenance of whole control system.
Utility model content
The utility model does not possess self detection on off operating mode and malfunction there is itself to solve existing relay
The defects of, cause both easy detonator circuit failure appearance, and there is when control circuit breaks down, it is impossible to quick and precisely sentence
A disconnected position of being out of order, is delayed to fault detection band, is unfavorable for the present situations such as the maintenance of whole control system and carries
One kind of confession can in time judge that control system trouble point institute is in place with effective detection relay contact both ends on off operating mode
Put, improve the relay on-off detection circuit of fault detection efficiency and the relay with the circuit.
The utility model is that concrete technical scheme is used by solving above-mentioned technical problem：A kind of relay on-off detection
Circuit, including relay coil and relay contact, it is characterised in that：Also include one and detect relay contact both ends pressure drop
Contact voltage drop detection means, the coil signal detection means of detection relay coil both ends electric signal, a multilevel iudge
Relay obtains the signal that whether relay is normal or fails in normal or failure state multilevel iudge device and detection
Output circuit, the contact voltage drop detection means detection obtain the contact voltage drop signal at relay contact both ends, the coil letter
The detection of number detection means obtains the coil pressure drop signal at relay coil both ends, and contact voltage drop signal inputs with coil pressure drop signal
In multilevel iudge device, it is compared by multilevel iudge device and judges relay whether in normal or failure state.By touching
The pressure drop at point pressure drop detection means detection contact both ends, by the pressure drop at coil signal detection means detection coil both ends, and it is right
Whether two are detected obtained signal and are analyzed, judge relay in normal or failure state.Effective automatic detection
Go out the on off operating mode at relay contact both ends, in control system failure state, can quickly judge the system failure in time
Point position, improves fault detection efficiency, more using the maintenance and maintenance of whole control system, reduces barrier for some reason and brings
Many-sided loss.
Preferably, described contact voltage drop detection means includes the first photo-coupler, the input of the first photo-coupler
It is in series by 3rd resistor and relay contact both ends and is joined together to form the input circuit of the first photoelectrical coupler；First
After the level output end of photo-coupler and the 4th resistant series access direct current power source voltage positive terminal, the first photo-coupler it is another
Output end forms the output loop of the first photo-coupler, simultaneously with accessing direct current power source voltage negative pole end after the 9th resistant series
In another output end input multilevel iudge device of first photo-coupler, believe with the coil pressure drop obtained in multilevel iudge device
Number judgement is compared, judges relay whether in normal or failure state.Improve the contact voltage drop to the pressure drop of contact both ends
Signal detection gathers reliability.
Preferably, described coil signal detection means includes the second photo-coupler, the input two of the second photo-coupler
End is joined together to form the input circuit of the second photoelectrical coupler after series resistance with being in parallel after coil both ends respectively；Second
The output both ends of photo-coupler are in parallel after series resistance with direct current power source voltage both ends are joined together to form the second light respectively
The output loop of coupler, the level output end of the second photo-coupler, which is connected, to be connected with DC voltage positive polarity after the 5th resistance
Connect, while another output end of the second photo-coupler is inputted into multilevel iudge device, with multilevel iudge device from the first light
Whether the contact voltage drop signal that coupler is obtained is compared judgement, judge relay in normal or failure state.Improve
Reliability is gathered to the contact voltage drop signal detection of contact both ends pressure drop.
Preferably, described multilevel iudge device includes the voltage comparator and chip model that chip model is LM393
For 74h086 NOR gate circuit, two inputs difference collect contacts pressure drop detection means detection of NOR gate circuit is touched
The coil pressure drop signal that point pressure drop signal and the detection of coil signal detection means obtain is compared judgement, and will determine that what is obtained
Output signal inputs to the comparison input of voltage comparator and whether carries out judging to obtain relay in normal or failure state.
Improve detection and judge more stable reliability.
Preferably, described signal output apparatus is using LED instruction output circuits or the instruction output of honey device.It is convenient
Effectively prompting, it is easy to user or guardian quickly to judge the on off operating mode that relay contact both ends occur.
Preferably, described LED instruction output circuits use the 8th resistance and LED light emitting diodes being connected in series,
8th resistance one end is electrically connected with voltage comparator, and the other end is electrically connected with LED light-emitting diodes tube anodes, LED luminous two
Pole pipe negative electrode is electrically connected with direct current power source voltage negative pole.It is easy to user or guardian quickly to judge that relay contact two is brought out
Existing on off operating mode.
Preferably, direct current power source voltage uses automobile-used 12V or 24V direct current power source voltages.Direct current power source voltage obtains just
It is prompt reliable and stable.
Another goal of the invention of the present utility model is to provide a kind of relay, including relay package shell, and it is special
Sign is：Also include above-mentioned technical proposal described in relay on-off detection circuit, relay package shell, relay coil,
Relay contact and relay on-off detection circuit set the relay finished product that the formula of linking into an integrated entity connects jointly.Effective automatic detection
Go out the on off operating mode at relay contact both ends, in control system failure state, can quickly judge the system failure in time
Point position, improves fault detection efficiency, more using the maintenance and maintenance of whole control system, reduces barrier for some reason and brings
Many-sided loss.
Preferably, relay on-off detection circuit is located in the package cavity that relay package shell is surrounded.Overall knot
Structure is compact.
Preferably, relay on-off detection circuit is located at relay package outer shell outer wall, outside relay package shell
The fixed mount of fixed relay break-make detection circuit is provided with wall, relay on-off detects circuit and sealed by fixed mount and relay
Casing fixes the mounting connection structure to form integral type.Compact overall structure, easy to maintain are reliable.
The beneficial effects of the utility model are：The pressure drop at contact both ends is detected by a photo-coupler, passes through another
The pressure drop at photo-coupler detection coil both ends, and the signal of two photo-coupler detections is analyzed, judge relay
Whether in normal or failure state.Effective automatic detection goes out the on off operating mode at relay contact both ends, occurs in control system
During malfunction, system failure point position can be quickly judged in time, improves fault detection efficiency, more using whole
The maintenance and maintenance of control system, reduce many-sided loss that barrier for some reason is brought.
Brief description of the drawings：
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of theory structure block diagram of relay on-off detection circuit of the utility model.
Fig. 2 is that a kind of relay on-off of the utility model detects circuit and the circuit theory of the relay with the circuit is shown
It is intended to.
Embodiment
Embodiment 1
In embodiment shown in Fig. 1, Fig. 2, a kind of relay on-off detects circuit, including relay coil and relay touch
Point CD, include 10, detection relay lines of contact voltage drop detection means of a detection relay contact CD both ends pressure drop
20, the multilevel iudge relays of coil signal detection means for enclosing AB both ends electric signal are in normal or failure state comparison
Judgment means 30 and detection obtain the signal output apparatus 11 that whether relay is normal or fails, the contact voltage drop detection dress
The contact voltage drop signal that 10 detections obtain relay contact CD both ends is put, the detection of coil signal detection means 20 obtains relay
The coil pressure drop signal at device loop A B both ends, contact voltage drop signal are inputted in multilevel iudge device 30 with coil pressure drop signal, by
Whether multilevel iudge device is compared judges relay in normal or failure state.Contact voltage drop detection means includes first
Photo-coupler IC1, the first photo-coupler IC1 input are in series by 3rd resistor R3 with relay contact CD both ends to be connected
The first photoelectrical coupler IC1 input circuit is formed together；First photo-coupler IC1 level output end and the 4th resistance R4
Direct current power source voltage 12V/24V positive terminals, the first photo-coupler IC1 another output end H and the 9th resistance R9 are accessed after series connection
Direct current power source voltage negative pole end, the first photo-coupler IC1 of formation output loop, while the first photo-coupler are accessed after series connection
In another output end H input multilevel iudges device 30, compared with the coil pressure drop signal obtained in multilevel iudge device 30
Compared with judgement, judge relay K whether in normal or failure state.Coil signal detection means includes the second photo-coupler IC2,
Connect and be joined together to form with after loop A B both ends be in parallel after a resistance respectively in second photo-coupler IC2 input both ends
The input circuit of second photoelectrical coupler, wherein the second photo-coupler IC2 input series connection first resistor R1, the second light
Coupler IC2 another input series connection second resistance R2；After second photo-coupler IC2 output both ends difference series resistance
Be in parallel with direct current power source voltage both ends and be joined together to form the output loop of the second photo-coupler, wherein the 5th resistance R5 and
6th resistance R6 be connected in series in respectively at the second photo-coupler IC2 output both ends after again with direct current power source voltage 12V/24V
Both ends are in parallel, and are connected after the second photo-coupler IC2 the 5th resistance R5 of level output end series connection with DC voltage positive polarity
Connect, while the second photo-coupler IC2 another output end is inputted into multilevel iudge device 30, with multilevel iudge device 30 from
Whether the contact voltage drop signal that the first photo-coupler IC1 is obtained is compared judgement, judge relay in normal or failure
State.Multilevel iudge device 30 includes the voltage comparator ic 3 that chip model is LM393 and the XOR that chip model is 74h086
Gate circuit IC4, it is that 74h086 NOR gate circuit forms the multilevel iudge circuit 31 in multilevel iudge device 30, NOR gate circuit
IC4 two inputs difference collect contacts pressure drop detection means detection obtains contact voltage drop signal and coil signal detection means
The coil pressure drop signal that detection obtains is compared judgement, and the output signal that will determine that to obtain is inputted to the ratio of voltage comparator
Whether carry out judging to obtain relay in normal or failure state compared with input.Signal output apparatus 11 is indicated defeated using LED
Go out circuit or the instruction output of honey device.LED instruction output circuits 11 are using the 8th the resistance R8 and LED luminous two being connected in series
Pole pipe, the 8th resistance R8 one end are electrically connected with voltage comparator, and the other end is electrically connected with LED light-emitting diodes tube anodes, LED
The negative electrode of LED 1 is electrically connected with direct current power source voltage negative pole.Direct current power source voltage uses automobile-used 12V or 24V direct currents
Supply voltage.
Embodiment 2：
A kind of relay, including the relay on-off detection circuit described in embodiment 1, relay package shell, relay
Coil, relay contact and relay on-off detection circuit set the relay finished product that the formula of linking into an integrated entity connects jointly.Relay
Break-make detection circuit is located in the package cavity that relay package shell is surrounded.When relay K works, C contacts and D contacts two
Contact is used to control band dynamic load R work.Can certainly be that relay on-off detection circuit is located at outside relay package
The fixed mount of fixed relay break-make detection circuit, relay on-off inspection are provided with shell outer wall, at relay package outer shell outer wall
Slowdown monitoring circuit fixes the mounting connection structure to form integral type by fixed mount and relay package shell.
Above content and structure describes the advantages of general principle, principal character and this practicality of product of the present invention, this
The technical staff of industry should be recognized that.Simply illustrate principle of the present utility model described in examples detailed above and specification, not
On the premise of departing from the spirit and scope of the utility model, the utility model also has various changes and modifications, and these change and changed
Enter and belong within claimed the scope of the utility model.The utility model requires protection scope is by appended claims
And its equivalent thereof.
Claims (10)
1. a kind of relay on-off detects circuit, including relay coil and relay contact, it is characterised in that：Also include one
Detect the contact voltage drop detection means of relay contact both ends pressure drop, the coil of a detection relay coil both ends electric signal is believed
Number detection means, a multilevel iudge relay are in normal or failure state multilevel iudge device and detection obtains relay
Whether device is normal or the signal output apparatus of failure, the contact voltage drop detection means detection obtain touching for relay contact both ends
Point pressure drop signal, the coil signal detection means detection obtain the coil pressure drop signal at relay coil both ends, contact voltage drop
Signal by multilevel iudge device with coil pressure drop signal input multilevel iudge device, being compared and judging whether relay is in
Normal or failure state.
2. detect circuit according to the relay on-off described in claim 1, it is characterised in that：Described contact voltage drop detection means
Including the first photo-coupler, the input of the first photo-coupler is in series by 3rd resistor with relay contact both ends to be connected to
The input circuit of the first photoelectrical coupler is formed together；The level output end of first photo-coupler after the 4th resistant series with accessing
Direct current power source voltage positive terminal, another output end of the first photo-coupler are born with accessing direct current power source voltage after the 9th resistant series
Extremely, the output loop of the first photo-coupler, while another output end input multilevel iudge device of the first photo-coupler are formed
In, judge compared with the coil pressure drop signal obtained in multilevel iudge device, judge relay whether in normal or
Failure state.
3. detect circuit according to the relay on-off described in claim 1, it is characterised in that：Described coil signal detection means
Including the second photo-coupler, the input both ends of the second photo-coupler are connected to after series resistance with being in parallel after coil both ends respectively
The input circuit of the second photoelectrical coupler is formed together；Second photo-coupler output both ends difference series resistance after with direct current
Source voltage both ends, which are in parallel, is joined together to form the output loop of the second photo-coupler, the level output end of the second photo-coupler
Connect and be connected with DC voltage positive polarity after the 5th resistance, while another output end of the second photo-coupler is inputted to comparing
In judgment means, judge compared with the contact voltage drop signal obtained in multilevel iudge device from the first photo-coupler, sentence
Whether disconnected relay is in normal or failure state.
4. detect circuit according to the relay on-off described in claim 1, it is characterised in that：Described multilevel iudge device includes
The NOR gate circuit that the voltage comparator and chip model that chip model is LM393 are 74h086, two of NOR gate circuit are defeated
Entering end, the detection of collect contacts pressure drop detection means obtains contact voltage drop signal respectively and coil signal detection means detects what is obtained
Coil pressure drop signal is compared judgement, and the output signal that will determine that to obtain inputs to the comparison input of voltage comparator
Whether row judges to obtain relay in normal or failure state.
5. detect circuit according to the relay on-off described in claim 1, it is characterised in that：Described signal output apparatus uses
LED indicates output circuit or the instruction output of honey device.
6. detect circuit according to the relay on-off described in claim 5, it is characterised in that：Described LED instruction output circuits
Using the 8th resistance and LED light emitting diodes being connected in series, the 8th resistance one end is electrically connected with voltage comparator, the other end
It is electrically connected with LED light-emitting diodes tube anodes, LED light-emitting diodes tube cathode is electrically connected with direct current power source voltage negative pole.
7. detect circuit according to the relay on-off described in claim 6, it is characterised in that：Described direct current power source voltage uses
Automobile-used 12V or 24V direct current power source voltages.
8. a kind of relay, including relay package shell, it is characterised in that：Also include described in one of claim 1~7 after
Electrical equipment break-make detects circuit, and relay package shell, relay coil, relay contact and relay on-off detection circuit are common
The relay finished product for setting the formula of linking into an integrated entity to connect.
9. according to the relay described in claim 8, it is characterised in that：Relay on-off detection circuit is located at outside relay package
In the package cavity that shell is surrounded.
10. according to the relay described in claim 8, it is characterised in that：Relay on-off detection circuit is located at relay package
The fixed mount of fixed relay break-make detection circuit, relay on-off are provided with outer shell outer wall, at relay package outer shell outer wall
Detection circuit fixes the mounting connection structure to form integral type by fixed mount and relay package shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720507946.6U CN206849780U (en) | 2017-05-09 | 2017-05-09 | A kind of relay on-off detection circuit and the relay with the circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720507946.6U CN206849780U (en) | 2017-05-09 | 2017-05-09 | A kind of relay on-off detection circuit and the relay with the circuit |
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| Publication Number | Publication Date |
|---|---|
| CN206849780U true CN206849780U (en) | 2018-01-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720507946.6U Expired - Fee Related CN206849780U (en) | 2017-05-09 | 2017-05-09 | A kind of relay on-off detection circuit and the relay with the circuit |
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| Country | Link |
|---|---|
| CN (1) | CN206849780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143058A (en) * | 2018-09-30 | 2019-01-04 | 浙江英洛华新能源科技有限公司 | The energy saving auxiliary contact for detecting high-voltage relay contact on-off detect feed circuit |
| WO2021057407A1 (en) * | 2019-09-27 | 2021-04-01 | 深圳市利成科技有限公司 | New energy vehicle charging protection device relay on-off detection system and method |
-
2017
- 2017-05-09 CN CN201720507946.6U patent/CN206849780U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143058A (en) * | 2018-09-30 | 2019-01-04 | 浙江英洛华新能源科技有限公司 | The energy saving auxiliary contact for detecting high-voltage relay contact on-off detect feed circuit |
| CN109143058B (en) * | 2018-09-30 | 2023-11-10 | 浙江英洛华新能源科技有限公司 | Energy-saving auxiliary contact detection feedback circuit for detecting on-off of high-voltage relay contact |
| WO2021057407A1 (en) * | 2019-09-27 | 2021-04-01 | 深圳市利成科技有限公司 | New energy vehicle charging protection device relay on-off detection system and method |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191024 Address after: 322100 Hengdian Electronic Industry Park, Jinhua, Zhejiang, Dongyang Patentee after: ZHEJIANG LINIX MOTOR Co.,Ltd. Address before: 322100 No. 196, industrial road, Hengdian Town, Zhejiang, Jinhua Patentee before: ZHEJIANG INNUOVO NEW ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |