CN213185953U

CN213185953U - Motor protection device

Info

Publication number: CN213185953U
Application number: CN202022228820.XU
Authority: CN
Inventors: 王伟海; 王学琛; 冯丽; 蔡娟; 李通; 刘洪伟
Original assignee: Longkou Mining Group Thermal Power Co ltd
Current assignee: Longkou Mining Group Thermal Power Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-05-11
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a motor protection device, which mainly comprises a shell component, an interface component, a display screen and a control component, wherein the shell component comprises a horizontally placed shell and mounting frames symmetrically arranged at the corners of the shell; the interface assembly comprises a power supply interface arranged on the shell, an operation interface positioned behind the power supply interface, a protection action interface positioned behind the operation interface and a voltage action interface positioned behind the protection action interface; the display screen is arranged on the shell and is positioned on the left side of the interface component; the control assembly comprises a circular button arranged on the shell and positioned behind the display screen, direction buttons symmetrically arranged outside the circular button, and positive and negative interfaces positioned on the right side of the direction buttons; the utility model provides high sensitivity, reliability, timeliness, the accuracy of protection device action, can be timely accurate withdraw from the operation with the fault equipment.

Description

Motor protection device

Technical Field

The utility model relates to a motor protection device technical field specifically is a motor protection device.

Background

The motor protector originally adopts a DF3361 motor protector of eastern science and technology limited company, which is put into operation from 12 months in 2005, has been continuously operated for 14 years and exceeds the service life of the device, and at present, the problems of unclear liquid crystal display, damage of partial keys, aging of electrical elements and the like exist in partial devices. According to the problem that several motor protection devices exist, especially the motor protection device of this model, surpass the device service life, electrical component is ageing, causes the protection action insensitive, and is malfunctioning even, influences the safety and stability operation of high-voltage motor, for solving the problem that above-mentioned in-process exists, designs a utility model specifically to a motor protection device.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

Therefore, the utility model aims at providing a motor protection device through reforming transform motor protection measurement and control device, has improved sensitivity, reliability, timeliness, the accuracy of protection device action, has improved the reliability of device communication, and the sensitivity, in time accurate withdraws from the operation with the fault equipment, and greatly reduced accident has enlarged the emergence, has guaranteed the safety and stability operation of equipment.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a motor protection device, comprising:

the shell assembly comprises a shell which is horizontally placed, mounting frames which are symmetrically arranged at the corners of the shell, a first through hole which is arranged at the bottom of the mounting frame and a second through hole which is positioned at the right side of the first through hole;

the interface assembly comprises a power supply interface arranged on the shell, an operation interface positioned behind the power supply interface, a protection action interface positioned behind the operation interface and a voltage action interface positioned behind the protection action interface;

the display screen is arranged on the shell and is positioned on the left side of the interface component;

the control assembly comprises a circular button arranged on the shell and positioned behind the display screen, direction buttons symmetrically arranged outside the circular button, and positive and negative electrode interfaces positioned on the right side of the direction buttons.

As a preferred scheme of motor protection device, still including the debugging subassembly including setting up the button is transferred to the electricity at control assembly rear, be located the left enter key of electricity transfer button and being located the left quick memory key of enter key.

As a preferred scheme of motor protection device, still include collection system including the pulse electric degree display screen that is located debugging group rear and be located the left debugging pulse of pulse electric degree display screen connects.

As an optimal selection scheme of motor protection device, still include the protection subassembly, including being located overload interface, the position of interface module below the overload interface, being located the overheated banning interface at overload interface rear, being located the interface of reporting an emergency and asking for help or increased vigilance at overheated banning interface rear with be located the interface of closing a bit of reporting an emergency and asking for help or increased vigilance interface rear.

Compared with the prior art, the utility model relates to a motor protection device has beneficial effect is: the utility model discloses a reform transform motor protection measurement and control device, improved sensitivity, reliability, timeliness, the accuracy of protection device action, improved the reliability of device communication, the sensitivity, in time accurate withdraws from the operation with the fault equipment, greatly reduced the emergence that the accident expanded, guaranteed the safety and stability operation of equipment. The utility model is suitable for a high-voltage motor's protection is observed and controled, plays very big guard action to the safe operation of equipment, has fine popularization application prospect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and 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 these drawings without inventive labor. Wherein:

fig. 1 is a top view of a motor protection device of the present invention;

fig. 2 is a schematic structural diagram of a housing assembly of the motor protection device of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a motor protection device, the utility model discloses a reform transform motor protection measurement and control device, improved sensitivity, reliability, promptness, the accuracy of protection device action, in time accurate withdraws from the operation with the fault equipment, greatly reduced the emergence that the accident expanded, guaranteed the safety and stability operation of equipment.

Fig. 1-2 show an embodiment of a motor protection device according to the present invention, referring to fig. 1, the present invention mainly includes a housing assembly 100, an interface assembly 200, a display 300 and a control assembly 400.

The housing assembly 100 is used for being mounted on a motor and providing a carrier and attachment points for other components such as the interface assembly 200, the display screen 300 and the control assembly 400, and the housing assembly 100 comprises a housing 110 horizontally placed, a mounting frame 120 symmetrically arranged at the corner of the housing, a first through hole 130 arranged on the mounting frame 120 and a second through hole positioned at the right side of the first through hole 130. The work flow of the housing assembly 100 provides a carrier and attachment points for the housing 110 to the interface assembly 200, the display screen 300, the control assembly 400, and the like, the mounting frame 120 provides attachment points for the through holes, and the first through hole 130 and the second through hole 140 are used to mount the housing on the motor.

The interface assembly 200 is used for ensuring the normal operation of the motor, and the interface assembly 200 includes a power interface 210 arranged on the housing 110, an operation interface 220 located behind the power interface 210, a protection action interface 230 located behind the operation interface 220, and a voltage action interface located behind the protection action interface 230. The specific implementation process of the interface assembly 200 is to connect the power supply of the motor to the power supply interface 210, connect the operation interface 220 and the protection interface 230 to the motor, and adjust the performance of the motor through electrical connection, thereby achieving the effect of protecting the motor.

The display screen 300 is disposed on the housing 110 at the left side of the interface assembly 200, and the display screen 300 is used for detecting various line connections and operation conditions on the motor.

The control assembly 400 is used for controlling the on-off of each interface and adjusting according to the display screen 300, and the control assembly 400 includes a circular button 410 arranged on the housing 110 and located behind the display screen 300, direction buttons 420 symmetrically arranged outside the circular button 410, and positive and negative interfaces 430 located on the right side of the direction buttons 420. The specific implementation flow of the control assembly 400 is to control the on/off of each interface through the direction button 420, detect a working fault occurring at a specific part by connecting the positive and negative electrode interfaces 430, and then perform debugging and maintenance.

The utility model discloses a concrete implementation flow provides carrier and attachment point for components such as interface module 200, display screen 300 and control assembly 400 for casing 110, and installing frame 120 provides the attachment point for the through-hole, and first through-hole 130 and second through-hole 140 are used for installing the casing on the motor. The power supply of the motor is connected with the power supply interface 210, the operation interface 220 and the protection action interface 230 are connected with the motor, and the performance of the motor is adjusted through electrical connection, so that the motor is protected. The display screen 300 is used to detect various line connections and operating conditions on the motor. The on-off of each interface is controlled by the direction button 420, and then the working fault of a specific part is detected by connecting the positive and negative interfaces 430, and then debugging and maintenance are carried out. The protection device further comprises a protection component 700, wherein the protection component 700 comprises an overload interface 710 located below the interface component 200, an overheating forbidden interface 720 located below the overload interface 710, an alarm interface 730 located below the overheating forbidden interface 720 and a closing interface 740 located below the alarm interface, wherein the zero-sequence overvoltage alarm, the PT disconnection alarm, the maintenance pressing plate and the protection function hard pressing plate can realize a dynamic recording function, recording 5 cycles before triggering according to events, recording 10 cycles after triggering, 16 sets of fixed values with independent setting and an online self-diagnosis function. An ac 220V power supply for field test was prepared. The utility model discloses a concrete installation flow is disconnect-device DC power supply, protects the little bus-bar connection of voltage, according to DF3361 device wiring drawing, contrast DF33 3361EA device description demolishs old device power, electric current, voltage, control circuit wiring, communication connection to do the mark. And (5) removing the original DF3361 motor protection device. And (4) cutting the door plate according to the size of the novel DF3361EA motor protection device, and performing spark protection. An 8-core shielded twisted pair cable, which is used as a communication medium, is used to apply a protection device to the communication device. And installing the DF3361EA motor protector, and correspondingly wiring according to a new wiring form. And checking the new wiring. And electrifying the device to perform a breaker opening and closing test. The test instrument is communicated with the flow pressure, and the measurement precision of each group is high. And (5) downloading a protection fixed value, and carrying out a protection test.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A motor protection device, comprising:

the shell assembly (100) comprises a shell (110) which is horizontally placed, a mounting frame (120) which is symmetrically arranged at the corner of the shell (110), a first through hole (130) which is arranged at the bottom of the mounting frame (120) and a second through hole (140) which is positioned at the right side of the first through hole (130);

the interface assembly (200) comprises a power interface (210) arranged on the shell (110), an operation interface (220) positioned behind the power interface (210), a protection action interface (230) positioned behind the operation interface (220) and a voltage action interface (240) positioned behind the protection action interface (230);

a display screen (300) disposed on the housing (110) on a left side of the interface assembly (200);

the control assembly (400) comprises a circular button (410) arranged on the shell (110) and positioned behind the display screen (300), a direction button (420) symmetrically arranged outside the circular button (410) and a positive and negative electrode interface (430) positioned on the right side of the direction button (420).

2. The motor protection device according to claim 1, further comprising a debugging component (500) including an electric tuning key (510) disposed behind the control component (400), an enter key (520) located at a left side of the electric tuning key (510), and a fast storage key (530) located at a left side of the enter key (520).

3. The motor protection device of claim 1, further comprising a collection device (600) comprising a pulsed electrical degree display screen (610) located behind the commissioning assembly (500) and a commissioning pulse connection (620) located to the left of the pulsed electrical degree display screen (610).

4. A motor protection arrangement according to claim 1, further comprising a protection assembly (700) comprising an overload interface (710) located behind the interface assembly (200), an overheat disable interface (720) located behind the overload interface (710), an alarm interface (730) located behind the overheat disable interface (720), and a park interface (740) located behind the alarm interface (730).