CN102684157B

CN102684157B - Intelligent protector for motor

Info

Publication number: CN102684157B
Application number: CN201210151539.8A
Authority: CN
Inventors: 王秀华; 闫武林; 白庆生; 柳淑凤; 李懂; 何伟
Original assignee: TIANSHUI 213 ELECTRICAL APPARATUS Co Ltd
Current assignee: TIANSHUI 213 ELECTRICAL APPARATUS Co Ltd
Priority date: 2012-05-16
Filing date: 2012-05-16
Publication date: 2014-08-27
Anticipated expiration: 2032-05-16
Also published as: CN102684157A

Abstract

The invention relates to an intelligent protector for a motor. The intelligent protector comprises a protector body through which a lead can directly pass, and is characterized by further comprising three conductive boards and two wiring modules. The two wiring modules are nested at the left end and right end of the protector body; each wiring module comprises a wiring base and three screw wiring frame assemblies; the three screw wiring frame assemblies are nested in the wiring base; the three conductive boards are located in the protector body; and the left ends and right ends of the three conductive boards are fixed at the screw wiring frame assemblies through the wiring bases. Each screw wiring frame assembly comprises a wiring frame and a screw which is in threaded connection with the wiring frame; three grooves are arranged on each wiring base; the wiring frames are located in the grooves; and the end parts of the conductive boards extend into the wiring frames and are fixedly connected with the screws. Protection covers are mounted on the wiring modules. The intelligent protector provided by the invention is simple in structure and changes a wiring manner by additionally mounting or dismounting parts of the wiring modules, so that the conversion between a lead passing-through product and a wiring frame wire-pressing product is conveniently realized.

Description

Intellectual motor protection

Technical field

A kind of essential electronic element that the present invention relates to electricity field, is specifically related to a kind of intellectual motor protection.

Background technology

Its main circuit access way of the motor protector product of prior art has two kinds, and screw access wire directly passes motor protector body by motor protector body or wire, and the latter is called for short wire directly through form.Be that an existing motor protector product only has a kind of mode of connection, the part of these two kinds of modes of connection is not general, uses inconvenient.

User is in occupation mode: smaller at protective current, while adopting wire thinner, neat in order to connect up, circuit changes flexibly, and ordinary priority considers to adopt screw access wire form; When current ratio is larger, while adopting wire thicker, for fear of wire joining heating, lead wiring terminal cost of manufacture, ordinary priority considers that wire is directly through form; In addition, when a motor protector, while protecting multiple devices, screw access wire form is convenient a lot of simultaneously.User can not be completely definite to which kind of connection type of final use when buying.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of simple in structure, convenient for production, intellectual motor protection that can change easily the mode of connection.

It is as follows that the present invention solves the problems of the technologies described above the technical scheme of taking: a kind of intellectual motor protection; comprise that wire directly passes the protector body of form; it is characterized in that: also comprise three conductive plates, two Wiring modules; two Wiring modules are inlayed the left and right two ends that are installed on protector body; Wiring module comprises junction block and three screw wire frame assemblies; three screw wire frame assemblies are inlayed and are installed on junction block; article three, conductive plate is positioned at protector body, and screw wire frame assembly is fixed on through junction block in the left and right two ends of three conductive plates.

Screw wire frame assembly comprises wire frame and screw, and screw is threaded with wire frame; Junction block is provided with three grooves, and wire frame is positioned at groove, and the end of conductive plate is stretched into wire frame and is fixedly connected with screw.

In order to ensure Electrical Safety, protective cover is installed above Wiring module.

The present invention is directly through on the protector product basis of form at wire, do not changing wire directly through in the protector product situation of pattern, in being originally used for penetrating three wire through-holes of wire, install three conductive plates additional, and directly through the two ends, left and right of the protector of pattern, add and load onto Wiring module at wire, wire is directly derived to the protector for wire frame line ball form through the protector product of form; Otherwise, Wiring module is disassembled, be just reduced into wire and directly pass the protector of pattern.

The present invention is simple in structure, by installing or dismantle Wiring module part additional, completes the change of the mode of connection, realizes easily wire directly through the protector product of form and the protection of the wire frame line ball form mutual conversion between device product respectively.User as required, changes the mode of connection of protector easily.The present invention uses in low-voltage electrical apparatus, not only for alternating current motor, also can be used for similar alternating current motor load, is applicable to major loop and exchanges 50Hz or 60Hz, and rated current scope 1～120A, to the electric circuit of 690V.Other function like the prior art, can be transshipped to motor, the protection such as underload, stall, short circuit, three-phase current unbalance, disconnected phase, anti-phase, ground connection/electric leakage, startup time delay, pre-alarm.User can be as required, selects the defencive function line parameter of going forward side by side to set.After error protection action, there are long-range, manual, automatic three kinds of modes and return to initial condition.At motor normal operating condition, show in real time three-phase current and load factor, can inquire about each set point; When motor operation is broken down, show fault type and parameter, send early warning, output protection signal also carries out memory storage.

The product that can change flexibly between this two kinds of connection types, has solved the difficult of the unexpected change generation of user, has also reduced user inventory kind.In manufacturing enterprise, part is general, as long as wire is directly installed additional to Wiring module through form, just can change over easily screw access wire form, has saved production cost, has reduced stock.

Accompanying drawing explanation

Fig. 1 is perspective view of the present invention,

Fig. 2 is the cutaway view of Fig. 1,

Fig. 3 is the decomposition texture schematic diagram of Fig. 1,

Fig. 4 is the A portion enlarged drawing of Fig. 2,

Fig. 5 is the B portion enlarged drawing of Fig. 3,

Fig. 6 is plane assembling schematic diagram of the present invention.

In figure: 1-wire directly, through the protector body of form, is called for short protector body, 101-groove; 102-hook mating holes, 2-Wiring module, 3-screw wire frame assembly; 301-wire frame, 302-screw, 4-conductive plate; 5-junction block; 501-wire frame groove, 502-hook, 503-through hole; 504-projection, 6-protective cover.

Embodiment

As shown in Figures 1 and 2: a kind of intellectual motor protection; comprise that wire directly passes the protector body 1 of form; it is characterized in that: also comprise three conductive plates 4, two Wiring modules 2; two Wiring modules 2 are inlayed the left and right two ends that are installed on protector body 1; Wiring module 2 comprises junction block 5 and three screw wire frame assemblies 3; three screw wire frame assemblies 3 are inlayed and are installed on junction block 5; article three, screw wire frame assembly 3 is fixed on through junction block 5 in the left and right two ends that conductive plate 4 is positioned at 1, three conductive plate 4 of protector body.

Referring to Fig. 3: screw wire frame assembly 3 comprises wire frame 301 and screw 302, and screw 302 is threaded with wire frame 301; Junction block 5 is provided with three wire frame grooves 501, and wire frame 301 is positioned at wire frame groove 501, and the end of conductive plate 4 is stretched into wire frame 301 and is fixedly connected with screw 302.

Referring to Fig. 3, Fig. 4, Fig. 5 and Fig. 6: wire is directly established groove 101 and hook mating holes 102 through the two ends, left and right of the protector body 1 of form, junction block 5 is provided with projection 504 and hook 502 with the link of protector body 1, projection 504 is suitable with groove 101, hook 502 is suitable with hook mating holes 102, and projection 504 is provided with three through holes 503 corresponding with conductive plate 4 positions; According to direction shown in Fig. 6 arrow, Wiring module 2 is pushed; conductive plate 4 two ends enter through through hole 503 lower end that wire frame 301 is positioned at screw 302; in this simultaneously; projection 504 is inlayed and is coordinated with groove 101; hook 502 enters hook mating holes 102 and hook mating holes 102 clasp joints, realizes being fixedly connected with of protector body 1 that junction block 5 and wire directly pass form.

In order to reduce the short trouble between circuit lead, increase electric clearance distance and creepage distance; And in order to ensure Electrical Safety, finger can not directly be encountered does not have the wiring of insulating protection position, reduce metal tools and encounter once in a while conducting terminal; Wiring module 2 is installed protective cover 6 above.

Claims

1. an intellectual motor protection, comprise that wire directly passes the protector body 1 of form, it is characterized in that: also comprise three conductive plates (4), two Wiring modules (2), two Wiring modules (2) are inlayed a left side that is installed on protector body (1), right two ends, Wiring module (2) comprises junction block (5) and three screw wire frame assemblies (3), three screw wire frame assemblies (3) are inlayed and are installed on junction block (5), article three, conductive plate (4) is positioned at protector body (1), article three, a left side for conductive plate (4), screw wire frame assembly (3) is fixed on through junction block (5) in right two ends,

Groove (101) and hook mating holes (102) are established in the two ends, left and right of protector body (1), junction block (5) is provided with projection (504) and hook (502) with the link of protector body (1), projection (504) is suitable with groove (101), hook (502) is suitable with hook mating holes (102), and projection (504) is provided with three through holes (503) corresponding with conductive plate (4) position; Conductive plate (4) two ends enter through through hole (503) lower end that wire frame (301) is positioned at screw (302); projection (504) is inlayed and is connected with groove (101); hook (502) and hook mating holes (102) clasp joint, junction block (5) is fixedly connected with protector body (1).

2. a kind of intellectual motor protection as claimed in claim 1, is characterized in that: screw wire frame assembly (3) comprises wire frame (301) and screw (302), and screw (302) is threaded with wire frame (301); Junction block (5) is provided with three grooves (501), and wire frame (301) is positioned at groove (501), and the end of conductive plate (4) is stretched into wire frame (301) and is fixedly connected with screw (302).

3. a kind of intellectual motor protection as claimed in claim 2, is characterized in that: Wiring module (2) is installed protective cover (6) above.