CN210693436U - Automatic protection device that drops into of motor - Google Patents
Automatic protection device that drops into of motor Download PDFInfo
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- CN210693436U CN210693436U CN201921428215.8U CN201921428215U CN210693436U CN 210693436 U CN210693436 U CN 210693436U CN 201921428215 U CN201921428215 U CN 201921428215U CN 210693436 U CN210693436 U CN 210693436U
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Abstract
The utility model discloses an automatic motor input protection device, which comprises an incoming line terminal, a circuit breaker, a fault indicator lamp, a nixie tube display screen, a line outlet terminal and a shell; the utility model discloses motor automatic input protection device adopts insulating fire-retardant casing airtight encapsulation, establishes ties between motor and distribution network, possesses motor protection and fault recovery after the automatic input motor function to and functions such as fault indicator, warning stereo set, digital display screen, timing switch machine, power knob, memory storage; the device has the advantages of simple wiring, complete protection function, intuitive measurement parameters, sensitive response, timely and reliable action and the like, can reliably and rapidly trip to protect the motor when a fault occurs, can timely put the motor into operation after the power supply of a circuit is recovered, greatly improves the operation safety of the motor, more meets the actual requirements of users, and avoids the economic loss of the users.
Description
Technical Field
The utility model relates to a motor protection technical field, especially an automatic protection device that drops into of motor.
Background
The motor in the power distribution network permeates all walks of life and is basic equipment for guaranteeing agriculture, national defense, economy and normal life of people. With the development of society, the requirement on the quality of power supply is higher and higher. However, when the power distribution network fails, events causing the motor to burn out and even causing serious safety accidents are frequent. Especially for the industries such as aquaculture and the like with high requirements on the running reliability of the motor, the motor cannot be put into operation in time even if the power distribution network line is electrified after the motor is burnt or the motor protection switch is tripped, and finally, livestock die due to factors such as oxygen deficiency, high temperature and the like, thereby bringing great economic loss to users.
At present, the traditional motor protection devices are more, but most of the protection devices have incomplete protection functions, only a single fault tripping function can be realized, the motor cannot be automatically put in when a call is received at the line side, the product quality is good and uneven, the reliability of components is low, the components are not sealed, the components are possibly dangerous and unreliable under the severe use environment, and the actual use requirements of users cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automatic motor input protection device, which adopts an insulating flame-retardant shell to be sealed and packaged, is connected in series between a motor and a power distribution network, and has the functions of automatic motor input after motor protection and fault recovery, as well as the functions of a fault indicator lamp, an alarm sound, a digital display screen, a timing switch, a power knob, memory storage and the like; the device has the advantages of simple wiring, complete protection function, intuitive measurement parameters, sensitive response, timely and reliable action and the like, can reliably and rapidly trip to protect the motor when a fault occurs, can timely put the motor into operation after the power supply of a circuit is recovered, greatly improves the operation safety of the motor, more meets the actual requirements of users, and avoids the economic loss of the users.
Realize the utility model discloses the technical solution of purpose does:
an automatic input protection device of a motor is characterized by comprising an incoming line terminal, a circuit breaker, a fault indicator lamp, a nixie tube display screen, an outgoing line terminal and a shell; an incoming terminal is arranged at the top end of the shell, and an outgoing terminal is arranged at the bottom end of the shell; a breaker is arranged below the incoming line terminal, and a fault indicator lamp and a nixie tube display screen are arranged below the breaker; a microprocessor, a line side fault protection module, a motor side and device body fault protection module, a relay driving module, a circuit breaker driving module, a fault indicator lamp driving module, an alarm module, a current and voltage sampling module, a display driving module and a power supply module are arranged in the shell; the microprocessor is respectively connected with the line side fault protection module, the motor side and device body fault protection module, the relay driving module, the circuit breaker driving module, the fault indicator lamp driving module, the alarm module, the current and voltage sampling module, the display driving module and the power supply module; the incoming line terminal is connected with the power distribution network, and the outgoing line terminal is connected with the motor; the circuit breaker is connected with the circuit breaker driving module, the fault indicator lamp is connected with the fault indicator lamp driving module, and the nixie tube display screen is connected with the display driving module.
Preferably, a residual current adjusting module is arranged in the shell and connected with the controller; and a residual current regulating switch is arranged on the shell and is connected with the residual current regulating module.
Preferably, a power adjusting module is arranged in the shell and connected with the controller; and the shell is provided with a power adjusting knob which is connected with the power adjusting module.
Preferably, a timing key module is arranged in the shell and connected with the controller; and a timing setting button is arranged on the shell and connected with the timing key module.
Preferably, a storage module is arranged in the shell and connected with the controller.
Preferably, the shell is provided with a test button, and the test button is connected with the motor side and the device body fault protection module.
Preferably, the line-side fault protection module comprises a phase-loss protection circuit and a three-phase unbalance protection circuit.
Preferably, the motor side and device body fault protection module comprises earth leakage protection, overload protection, locked rotor protection and short circuit protection.
Preferably, the shell is made of an insulating flame-retardant material, and the shell is hermetically packaged.
Compared with the prior art, the utility model, it is showing the advantage:
the utility model discloses motor automatic input protection device adopts insulating fire-retardant casing airtight encapsulation, establishes ties between motor and distribution network, possesses motor protection and fault recovery after the automatic input motor function to and functions such as fault indicator, warning stereo set, digital display screen, timing switch machine, power knob, memory storage; the device has the advantages of simple wiring, complete protection function, intuitive measurement parameters, sensitive response, timely and reliable action and the like, can reliably and rapidly trip to protect the motor when a fault occurs, can timely put the motor into operation after the power supply of a circuit is recovered, greatly improves the operation safety of the motor, more meets the actual requirements of users, and avoids the economic loss of the users.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the automatic motor input protection device of the present invention.
Fig. 2 is a schematic diagram of the automatic motor protection device according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1 and 2, an automatic motor protection device comprises an incoming line terminal 1, a circuit breaker 2, a fault indicator lamp 3, a nixie tube display screen 4, a timing setting button 5, a residual current regulating switch 6, a power regulating knob 7, a test button 8, an outgoing line terminal 9 and a shell 10; an incoming terminal 1 is arranged at the top end of the shell 10, and an outgoing terminal 9 is arranged at the bottom end of the shell 10; a circuit breaker 2 is arranged below the incoming line terminal 1, a nixie tube display screen 4 is arranged below the circuit breaker 2, a fault indicating lamp 3 is arranged on one side of the nixie tube display screen 4, a timing setting button 5 is arranged below the nixie tube display screen 4, and a residual current adjusting switch 6 is arranged below the timing setting button 5; a power adjusting knob 7 and a test button 8 are arranged below the residual current adjusting switch 6; a microprocessor, a line side fault protection module, a motor side and device body fault protection module, a relay driving module, a circuit breaker driving module, a fault indicator lamp driving module, an alarm module, a current and voltage sampling module, a display driving module and a power supply module are arranged in the shell 10; the microprocessor is respectively connected with the line side fault protection module, the motor side and device body fault protection module, the relay driving module, the circuit breaker driving module, the fault indicator lamp driving module, the alarm module, the current and voltage sampling module, the display driving module and the power supply module; the line side fault protection module comprises a phase-lack protection circuit and a three-phase unbalance protection circuit; the motor side and device body fault protection module comprises leakage protection, overload protection, locked rotor protection and short circuit protection.
The incoming line terminal 1 and the outgoing line terminal 9 are three-phase incoming lines and three-phase outgoing lines and are connected between the power distribution network and the motor in series, the incoming line terminal 1 is connected with the power distribution network, and the outgoing line terminal 9 is connected with the motor.
The circuit breaker 2 is provided with a breaking handle, the opening and closing state can be visually seen, and manual opening and closing can be carried out; the circuit breaker 2 is connected with the circuit breaker driving module, when the motor side and the device body fault protection module detect faults, the microcontroller rapidly enables the circuit breaker 2 to be tripped through the circuit breaker driving module, a power supply loop is cut off, and safety of the protection device and the motor is guaranteed.
The fault indicator lamp 3 is connected with the fault indicator lamp driving module; when the line side fault protection module detects a fault, namely when the line side voltage is abnormal, the microcontroller disconnects the relay through the relay driving module, the motor stops working, and meanwhile, the microcontroller enables the fault indicator lamp 3 to be on through the fault indicator lamp driving module; when the line side voltage returns to normal, the microcontroller enables the relay to be automatically closed through the relay driving module, meanwhile, the microcontroller enables the fault indicator lamp 3 to be extinguished through the fault indicator lamp driving module, and the motor starts to work. The fault indicator lamp 3 and the alarm module can inform a user in time when a fault occurs, and the user can conveniently locate a fault motor.
The nixie tube display screen 4 is connected with the display driving module, the microcontroller enables the nixie tube display screen 4 to display voltage and current in real time through the display driving module, when a fault occurs, the display screen displays a fault code, the fault can be rapidly eliminated by contrasting the identification code, and the device has a fault inquiry function.
The timing setting button 5 is connected with the controller through the timing key module, after the device is switched on and powered on, the timing setting key is pressed for a long time for 5 seconds in any state, the display screen flickers, the flicking position is modified by pressing the plus or minus key, the two digits on the leftmost side represent hours, the two digits on the right side represent minutes, and if the setting is 1030, the 10 hours and 30 minutes are represented; setting the time to "0000" represents turning off the timing function; the display screen always displays the remaining time after the timing time is set for 5 seconds, the device automatically trips when the timing time is up, and the display screen displays E-10; the timing setting button 5 can set time for switching on and off the motor according to the needs of a user, so that energy consumption is reduced, and the electric charge burden and the labor cost of the user are reduced.
The residual current regulating switch 6 is connected with the controller through the residual current regulating module, the device has leakage protection, and when a circuit has a leakage fault, the zero-sequence current can be sensitively and quickly detected to enable the device to act; the residual current regulating switch 6 is divided into three grades, and the three grades of 50mA, 75mA and 100mA are respectively selectable.
The power adjusting knob 7 is connected with the controller through a power adjusting module, and the power adjusting knob 7 can adjust the power of the protection device according to the power of the motor; in order to improve the protection performance of a motor, a protection power adjustable function is specially added to the device; because different motors have different powers and different working powers under different conditions, if the currents generated by the motors during heavy load operation and light load operation are different, the adjustable function can effectively meet the requirements of users; the protection device is not adjustable in the market and is universal in power, and if the motor is locked or the current exceeds the bearing value of the motor but does not reach the tripping power value of the protector, the protector cannot play any protection role and directly burns out the motor; only with the adjustable function can the motor be adjusted according to the actual size, and the omnibearing protection can be realized.
The test button 8 is connected with the motor side and the leakage protection in the device body fault protection module, and the test button 8 is used for detecting whether the switch can normally work when the leakage fault occurs; when the test button 8 is pressed, the circuit breaker 2 trips, typically once a month.
The storage module is arranged in the shell 10 and connected with the controller, the reason that the motor fails recently can be stored, the latest fault code can be called, and the storage function is achieved.
The shell 10 is made of an insulating flame-retardant material, and the shell 10 is hermetically packaged, so that the protection device can reliably operate in severe environments such as humid environment, high temperature environment and the like.
The utility model discloses automatic protection device that drops into of motor's theory of operation:
when the three-phase power supply voltage has a problem due to the fault of the power distribution network line side, the fault of the line side is judged through open-phase protection and three-phase unbalance protection, the relay is automatically disconnected by the microprocessor through the relay driving module (at the moment, the circuit breaker does not trip), and a motor power supply loop is cut off; after the line fault processing is finished and the three-phase voltage is recovered to be normal, after 5min of time delay (preventing a dispatcher from trying to send a line to cause repeated starting and stopping of a motor), the microprocessor enables the relay to be automatically closed through the relay driving module, and the motor is recovered to be normal.
When faults occur on the side of the motor and the device body, the device has leakage protection, overload protection, locked rotor protection and short circuit protection, and the microprocessor can reliably and rapidly trip off the circuit breaker through the circuit breaker driving module to cut off a power supply loop, so that the safety of the protection device and the motor is ensured.
To sum up, the utility model discloses motor automatic input protection device adopts insulating fire-retardant casing airtight encapsulation, establishes ties between motor and distribution network, possesses motor protection and automatic input motor function after the fault recovery to and functions such as fault indicator, warning stereo set, digital display screen, timing switch machine, power knob, memory storage; the device has the advantages of simple wiring, complete protection function, intuitive measurement parameters, sensitive response, timely and reliable action and the like, can reliably and rapidly trip to protect the motor when a fault occurs, can timely put the motor into operation after the power supply of a circuit is recovered, greatly improves the operation safety of the motor, more meets the actual requirements of users, and avoids the economic loss of the users.
Claims (9)
1. An automatic motor input protection device is characterized by comprising an incoming line terminal (1), a circuit breaker (2), a fault indicator lamp (3), a nixie tube display screen (4), an outgoing line terminal (9) and a shell (10); an incoming terminal (1) is arranged at the top end of the shell (10), and an outgoing terminal (9) is arranged at the bottom end of the shell (10); a circuit breaker (2) is arranged below the incoming line terminal (1), and a fault indicator lamp (3) and a nixie tube display screen (4) are arranged below the circuit breaker (2); a microprocessor, a line side fault protection module, a motor side and device body fault protection module, a relay driving module, a circuit breaker driving module, a fault indicator lamp driving module, an alarm module, a current and voltage sampling module, a display driving module and a power supply module are arranged in the shell (10); the microprocessor is respectively connected with the line side fault protection module, the motor side and device body fault protection module, the relay driving module, the circuit breaker driving module, the fault indicator lamp driving module, the alarm module, the current and voltage sampling module, the display driving module and the power supply module; the incoming line terminal (1) is connected with a power distribution network, and the outgoing line terminal (9) is connected with the motor; the circuit breaker (2) is connected with the circuit breaker driving module, the fault indicator lamp (3) is connected with the fault indicator lamp driving module, and the nixie tube display screen (4) is connected with the display driving module.
2. The automatic motor input protection device according to claim 1, characterized in that a residual current regulation module is arranged in the housing (10), and the residual current regulation module is connected with a controller; and a residual current regulating switch (6) is arranged on the shell (10), and the residual current regulating switch (6) is connected with the residual current regulating module.
3. The automatic motor input protection device according to claim 1, wherein a power regulation module is arranged in the housing (10), and the power regulation module is connected with a controller; and a power adjusting knob (7) is arranged on the shell (10), and the power adjusting knob (7) is connected with the power adjusting module.
4. The automatic motor input protection device according to claim 1, wherein a timing key module is arranged in the housing (10), and the timing key module is connected with the controller; and a timing setting button (5) is arranged on the shell (10), and the timing setting button (5) is connected with the timing key module.
5. The automatic motor input protection device according to claim 1, wherein a memory module is arranged in the housing (10), and the memory module is connected with the controller.
6. The automatic motor protection device according to claim 1, wherein a test button (8) is provided on the housing (10), and the test button (8) is connected to the motor side and device body fault protection module.
7. The motor automatic input protection device of claim 1, wherein the line-side fault protection module comprises a phase-loss protection circuit and a three-phase imbalance protection circuit.
8. The automatic motor input protection device of claim 1, wherein the motor side and device body fault protection modules include earth leakage protection, overload protection, locked rotor protection, and short circuit protection.
9. The automatic motor input protection device according to claim 1, wherein the housing (10) is made of an insulating flame retardant material, and the housing (10) is hermetically sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428215.8U CN210693436U (en) | 2019-08-30 | 2019-08-30 | Automatic protection device that drops into of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428215.8U CN210693436U (en) | 2019-08-30 | 2019-08-30 | Automatic protection device that drops into of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210693436U true CN210693436U (en) | 2020-06-05 |
Family
ID=70885457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921428215.8U Active CN210693436U (en) | 2019-08-30 | 2019-08-30 | Automatic protection device that drops into of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210693436U (en) |
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2019
- 2019-08-30 CN CN201921428215.8U patent/CN210693436U/en active Active
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