CN206906462U - A kind of three phase electric machine current monitoring device - Google Patents
A kind of three phase electric machine current monitoring device Download PDFInfo
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- CN206906462U CN206906462U CN201720693035.7U CN201720693035U CN206906462U CN 206906462 U CN206906462 U CN 206906462U CN 201720693035 U CN201720693035 U CN 201720693035U CN 206906462 U CN206906462 U CN 206906462U
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Abstract
A kind of three phase electric machine current monitoring device is the utility model is related to, belongs to current monitoring field.The utility model includes power module, processor, display module, the first alarm, the second alarm, relay, metal-oxide-semiconductor, adaptor interface, rechargeable battery and at least one current transformer；Current transformer electrically connects with processor, processor, display module and rechargeable battery electrically connect with power module respectively, relay has normally-closed contact, adaptor interface after relay coil composition series circuit with accessing power module, relay normally closed contact after the first alarm composition series circuit with accessing power module, metal-oxide-semiconductor G poles are electrically connected with processor, and power module is accessed after metal-oxide-semiconductor and the second alarm composition series circuit.By the utility model can realize to the lasting monitoring of three phase electric machine electric current and the utility model in itself whether the monitoring of dead electricity.
Description
Technical field
The utility model belongs to current monitoring field, and in particular to a kind of three phase electric machine current monitoring device.
Background technology
In industrial production, three phase electric machine as production power source, access 380V industrial electros, in process of production, it is necessary to
Many inspections are carried out to operating three phase electric machine, wherein, monitor whether its electric current is normal, be the weight for checking three phase electric machine
Want content, such as monitor three phase electric machine whether power off, and for example monitor three phase electric machine three-phase electricity whether phase shortage.
Prior art can use current transformer to realize the monitoring to electric current, when three phase electric machine power-off or and three phase electric machine
During the three-phase electric power open phase of connection, it can be monitored by current transformer.But electricity when prior art is run to three phase electric machine
All it is to bias toward the current monitoring to three phase electric machine in terms of flowing monitoring, because the operational site of three phase electric machine is usually unmanned value
Keep, the warning device of three phase electric machine current monitoring device is arranged on monitoring station, electromechanical to operating three-phase electricity in order to realize
Stream is continued to monitor, and the three phase electric machine current monitoring device of prior art needs to connect civil power for its power supply.For three-phase electricity
Warning device if voice guard, during its normal work will not audible alarm, when three phase electric machine current monitoring fills
Put itself access civil power power-off when, audible alarm dead electricity and can not audio alert, such three phase electric machine current monitoring device
Its monitoring function can not just be realized.
Utility model content
In view of this, the purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of three phase electric machine electric current
Monitoring device, realize to the lasting monitoring of three phase electric machine electric current and the utility model in itself whether the monitoring of dead electricity.
To realize object above, the utility model adopts the following technical scheme that：
A kind of three phase electric machine current monitoring device, including power module, processor, display module, the first alarm, second
Alarm, relay, metal-oxide-semiconductor, adaptor interface, rechargeable battery and at least one current transformer；
Wherein, the current transformer electrically connects with the processor, the processor, the display module and described fills
Battery electrically connects with the power module respectively, and the relay has a normally-closed contact, the adaptor interface with it is described after
The power module is accessed after electric apparatus coil composition series circuit, the relay normally closed contact forms with first alarm
The power module is accessed after series circuit, the metal-oxide-semiconductor G poles electrically connect with the processor, the metal-oxide-semiconductor and described second
The power module is accessed after alarm composition series circuit.
Further, the three phase electric machine current monitoring device also includes hand switch, and the hand switch is serially connected in institute
State in the series circuit that relay normally closed contact forms with first alarm.
Further, the hand switch is toggle switch.
Further, the metal-oxide-semiconductor is PMOS, the PMOS and the series circuit of second alarm composition
In, electric current flows into from the S poles of the PMOS, and is flowed out from the D poles of the PMOS.
Further, the metal-oxide-semiconductor is NMOS tube, the NMOS tube and the series circuit of second alarm composition
In, electric current flows into from the D poles of the NMOS tube, and is flowed out from the S poles of the NMOS tube.
Further, the rechargeable battery is lithium battery.
Further, the display module is touch display screen.
Further, the display module is LCD display.
Further, first alarm and second alarm are voice guard.
Further, the processor is single-chip microcomputer.
The utility model uses above technical scheme, at least possesses following beneficial effect：
The utility model provides a kind of three phase electric machine current monitoring device, is carried out by external adapter for the utility model
Power supply, current transformer may be provided in any phase electricity in the three-phase electricity of three phase electric machine, when three phase electric machine power-off or three-phase
During electric phase shortage, current transformer senses curent change, triggers the second alarm equipment alarm；When the utility model obtains electric, it is described after
The normally-closed contact of electrical equipment disconnects, and the first alarm is power failure state, when the utility model dead electricity itself, by rechargeable battery after
Continuous power supply, while the normally-closed contact of the relay becomes normally off again, the first alarm, which obtains, electric sends the utility model in itself
The alarm of dead electricity, it can be realized to the lasting monitoring of three phase electric machine electric current and the utility model in itself by the utility model
Whether the monitoring of dead electricity.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fundamental diagram when metal-oxide-semiconductor uses PMOS in three phase electric machine current monitoring device in Fig. 1 the utility model；
Fundamental diagram when metal-oxide-semiconductor uses NMOS tube in three phase electric machine current monitoring device in Fig. 2 the utility model；
Hand switch is serially connected in relay normally closed contact and the first alarm 4 composition series circuit in Fig. 3 the utility model
In fundamental diagram.
In figure, 1- power modules；2- processors；3- display modules；The alarms of 4- first；The alarms of 5- second；6- relays
Device；7-MOS is managed；8- adaptor interfaces；9- rechargeable batteries；10- current transformers；11- hand switches.
Embodiment
, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer
Scheme is described in detail.Obviously, described embodiment is only the utility model part of the embodiment, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Resulting all other embodiment is put, belongs to the scope that the utility model is protected.
As depicted in figs. 1 and 2, a kind of three phase electric machine current monitoring device of the utility model offer, including power module 1,
Processor 2, display module 3, the first alarm 4, the second alarm 5, relay 6, metal-oxide-semiconductor 7, adaptor interface 8, rechargeable battery
9 and at least one current transformer 10；
Wherein, the current transformer 10 electrically connects with the processor 2, the processor 2, the and of the display module 3
The rechargeable battery 9 electrically connects with the power module 1 respectively, and the relay 6 has normally-closed contact, the adaptor interface
8 after the coil of relay 6 composition series circuit with accessing the power module 1, the normally-closed contact of relay 6 and described the
The power module 1 is accessed after one alarm 4 composition series circuit, the metal-oxide-semiconductor 7G poles electrically connect with the processor 2, institute
Metal-oxide-semiconductor 7 is stated with accessing the power module 1 after second alarm 5 composition series circuit.
It is described in detail below by way of the working method to such scheme, such scheme is explained further with realizing
Illustrating, in the utility model, the adaptor interface 8 is used for external adapter, then accesses civil power by external adapter,
During the utility model normal work, stable working power is provided by civil power, realizes lasting monitoring of the present utility model.It is described
Current transformer 10 may be provided in any phase in the three-phase electricity of three phase electric machine, you can realize the electric current to three phase electric machine operation
Monitoring, its principle are：Principle is：During three phase electric machine normal work, there is essentially identical electric current to lead in three electric wires of three-phase electricity
Cross, when the place phase phase shortage of the current transformer 10 detection, the phase current vanishing, the current transformer 10 senses
Curent change, trigger second alarm 5 and alarm；When the place phase phase shortage that the non-current transformer 10 detects, i.e., three
Mutually other phase phase shortages in electricity, the electric current for the place phase that the current transformer 10 detects can substantially increase, the current transformer
10 sense curent change, trigger second alarm 5 and alarm, and show that three phase electric machine operating is abnormal.The Current Mutual Inductance
Device 10 is detected in three phase electric machine after the curent change of any phase, is obtained induced-current trigger signal, is triggered the processor 2,
The processor 2 sends control signal to the metal-oxide-semiconductor 7G poles, and the metal-oxide-semiconductor 7 turns on, and then triggers second alarm 5
Alarm.
During the utility model normal work, the coil of relay 6 obtains electric, disconnects the normally-closed contact of the relay 6,
Because being connected in series between first alarm 4 and the normally-closed contact of the relay 6, first alarm 4 is dead electricity
State, namely alarm will not be sent；When the utility model accesses civil power by adapter, the rechargeable battery 9, which is not used in, to be carried
It is the rechargeable battery 9 by the power module 1 control for working power, and when electricity is discontented in the rechargeable battery 9
Charging.When the civil power that the utility model is accessed by adapter powers off, the power module 1 switches the rechargeable battery 9 and is
The utility model provides working power, now, the coil losing electricity of relay 6, closes the normally-closed contact of the relay 6,
First alarm 4 for electricity condition, send alarm.
In actual applications, first alarm 4 and second alarm 5 can be real by long wire for the utility model
Now electrically connect, so described first alarm 4 and second alarm 5 may be provided at the office space of staff, with reality
Existing staff is monitored in real time in office field using the utility model.
Herein it is important to note that the utility model such scheme be substantially by the composition to hardware components and
The improvement that annexation is carried out, it is not related to the improvement carried out to software.In such scheme, the function of each functional module is realized
Belonging to prior art content, for the power module 1 when accessing civil power by adapter, the rechargeable battery 9 is not used in power supply,
And can also be that the rechargeable battery 9 charges, the above-mentioned function of the power module 1 belongs in the electronic product of prior art
Conventional application, the function of power module 1 of the present utility model is also to be achieved by the prior art.The current transformer 10 obtains
Induced signal and trigger the processor 2 and control the metal-oxide-semiconductor 7 to turn on, above-mentioned function by the processor 2 itself
Logic control can be achieved, and it realizes the application for belonging to the function of prior art processor 2.
By the utility model such scheme, three phase electric machine current monitoring device provided by the utility model is on the one hand real
The monitoring of three-phase electricity when now being run to three phase electric machine, on the other hand in the civil power power-off of the utility model access, the power supply
Module 1 continues as the utility model by the rechargeable battery 9 and powered, and sends civil power power alarm, realizes to three phase electric machine
The lasting monitoring of electric current and the utility model in itself whether the monitoring of dead electricity.Can solve the three phase electric machine electric current prison of prior art
Survey the problem of device can not work under powering-off state in itself and can not realize the prompting of itself power alarm, such as existing skill
Art three phase electric machine current monitoring device alarm if voice guard, during its normal work will not audible alarm, when
Three phase electric machine current monitoring device itself access civil power power-off when, audible alarm dead electricity and can not audio alert, such three
Phase current of electric monitoring device can not just realize its monitoring function.
In such scheme of the present utility model, the three phase electric machine current monitoring device of the present utility model is not by suitable
When orchestration accesses civil power, the power module 1 is powered by the rechargeable battery 9 for the utility model, the coil of relay 6
It is power failure state, the normally-closed contact of the relay 6 keeps normally off, and first alarm 4 electric can must alarm always, when
When staff knows warning message, its purpose of alarming has been carried out, and is now just not intended to it and continues to alarm, to be filled described in saving
The electricity of battery 9, following improvement project is also provided to this utility model, as shown in Figure 3：
The three phase electric machine current monitoring device also includes hand switch 11, and the hand switch 11 is serially connected in the relay
In the series circuit that the normally-closed contact of device 6 forms with first alarm 4.
In such scheme, the hand switch 11 needs to be kept closed in normal use, when the utility model from
During the civil power power-off of body access, trigger first alarm 4 and remind people, people receive the alarm of first alarm 4
Afterwards, by disconnecting the hand switch 11, the alarm of first alarm 4 is released, can be saved by this way described
The electricity of rechargeable battery 9, rationally realize that electric current when being run to three phase electric machine is supervised using the electricity of the rechargeable battery 9 to reach
Survey.
In such scheme, the hand switch 11 can be toggle switch.Toggle switch, which has, intuitively to be disconnected and closes
State, brought convenience for people's use, certain the utility model can also use other to have intuitively disconnection and closure state
Hand switch 11, this falls within the scope of protection of the utility model.
In the utility model, the control signal that the processor 2 is received by the G poles of the metal-oxide-semiconductor 7 realizes the MOS
The break-make of pipe 7, and then control second alarm 5 to alarm, in the prior art, metal-oxide-semiconductor 7 can be divided into PMOS and NMOS tube,
The purpose of control break-make of the present utility model can functionally be realized, it should be noted that had any different in their circuit connection
Part, it is specially：
As shown in figure 1, the metal-oxide-semiconductor 7 is PMOS, the PMOS and the series line of second alarm 5 composition
Lu Zhong, electric current flow into from the S poles of the PMOS, and are flowed out from the D poles of the PMOS.
As shown in Fig. 2 the metal-oxide-semiconductor 7 is NMOS tube, the NMOS tube and the series line of second alarm 5 composition
Lu Zhong, electric current flow into from the D poles of the NMOS tube, and are flowed out from the S poles of the NMOS tube.
In the utility model, lithium battery widely used on the market can be selected in the rechargeable battery 9, and it has excellent property
Can also have the advantages of environmentally friendly simultaneously, lithium ion battery is turned into the rechargeable battery 9 of main flow on the market.
In the utility model, the display module 3 can use touch display screen, real on the basis of display function is realized
Existing touch operation, certainly from the aspect of cost, the display module 3 of the present utility model can be shown using common LCD
Screen.
In the utility model, first alarm 4 and second alarm 5 can use voice guard, sound
Sound alarm contrasts light crossing-signal, and its advantage is that the alarm of voice guard is active warning alarm, and sharp alarm is actively
Human ear is passed to, unlike light crossing-signal, people need to go to see at any time, can just know whether to alarm.
In the utility model, the processor 2 can use single-chip microcomputer.Single-chip microcomputer is a kind of IC chip, is to adopt
With very large scale integration technology the central processing unit 2CPU with data-handling capacity, random access memory ram, read-only deposit
Reservoir ROM, a variety of I/O mouths and interrupt system, the function such as timer/counter (may also include display driver circuit, pulsewidth tune
The circuits such as circuit processed, analog multiplexer, A/D converter) it is integrated into small and perfect micro- of one formed on one piece of silicon chip
Type computer system, in industrial control field extensive use.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (10)
- A kind of 1. three phase electric machine current monitoring device, it is characterised in that：Including power module, processor, display module, the first report Alert device, the second alarm, relay, metal-oxide-semiconductor, adaptor interface, rechargeable battery and at least one current transformer；Wherein, the current transformer electrically connects with the processor, the processor, the display module and the charging electricity Pond electrically connects with the power module respectively, and the relay has normally-closed contact, the adaptor interface and the relay The power module is accessed after coil composition series circuit, the relay normally closed contact is connected with first alarm composition The power module is accessed after circuit, the metal-oxide-semiconductor G poles electrically connect with the processor, the metal-oxide-semiconductor and the described second alarm The power module is accessed after device composition series circuit.
- 2. three phase electric machine current monitoring device according to claim 1, it is characterised in that：The three phase electric machine current monitoring Device also includes hand switch, and the hand switch is serially connected in the relay normally closed contact and first alarm composition In series circuit.
- 3. three phase electric machine current monitoring device according to claim 2, it is characterised in that：The hand switch is to stir out Close.
- 4. three phase electric machine current monitoring device according to claim 1 or 2, it is characterised in that：The metal-oxide-semiconductor is PMOS In the series circuit of pipe, the PMOS and second alarm composition, electric current flows into from the S poles of the PMOS, and from The D poles outflow of the PMOS.
- 5. three phase electric machine current monitoring device according to claim 1 or 2, it is characterised in that：The metal-oxide-semiconductor is NMOS In the series circuit of pipe, the NMOS tube and second alarm composition, electric current flows into from the D poles of the NMOS tube, and from The S poles outflow of the NMOS tube.
- 6. three phase electric machine current monitoring device according to claim 1, it is characterised in that：The rechargeable battery is lithium electricity Pond.
- 7. three phase electric machine current monitoring device according to claim 1, it is characterised in that：The display module is aobvious to touch Display screen.
- 8. three phase electric machine current monitoring device according to claim 1, it is characterised in that：The display module shows for LCD Display screen.
- 9. three phase electric machine current monitoring device according to claim 1, it is characterised in that：First alarm and described Second alarm is voice guard.
- 10. three phase electric machine current monitoring device according to claim 1, it is characterised in that：The processor is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720693035.7U CN206906462U (en) | 2017-06-14 | 2017-06-14 | A kind of three phase electric machine current monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720693035.7U CN206906462U (en) | 2017-06-14 | 2017-06-14 | A kind of three phase electric machine current monitoring device |
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| Publication Number | Publication Date |
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| CN206906462U true CN206906462U (en) | 2018-01-19 |
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| CN201720693035.7U Active CN206906462U (en) | 2017-06-14 | 2017-06-14 | A kind of three phase electric machine current monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031669A (en) * | 2019-05-29 | 2019-07-19 | 上海基理网络科技有限公司 | Super-large current monitor |
| CN110031669B (en) * | 2019-05-29 | 2024-05-24 | 上海基理网络科技有限公司 | Super-current monitor |
-
2017
- 2017-06-14 CN CN201720693035.7U patent/CN206906462U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031669A (en) * | 2019-05-29 | 2019-07-19 | 上海基理网络科技有限公司 | Super-large current monitor |
| CN110031669B (en) * | 2019-05-29 | 2024-05-24 | 上海基理网络科技有限公司 | Super-current monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200203 Address after: Room 301-10, office on the third floor, No. 3166, Baijiao Road, Chengdong, Baijiao Town, Doumen District, Zhuhai City, Guangdong Province Patentee after: Zhuhai Shengshi Ronghe Sensor Technology Co., Ltd Address before: 518000 Futian building, Shennan Middle Road, Futian street, Shenzhen, Guangdong, Futian District, 1802 Patentee before: Shenzhen Shengshi Ronghe Technology Co., Ltd. |
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| TR01 | Transfer of patent right |