CN113438853A

CN113438853A - Low-voltage intelligent motor protector

Info

Publication number: CN113438853A
Application number: CN202110744013.XA
Authority: CN
Inventors: 刘国庆; 任景旭
Original assignee: Shanxi Longteng Electromechanical Technology Co ltd
Current assignee: Taiyuan Kesim Technology Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-09-24
Anticipated expiration: 2041-07-01
Also published as: CN113438853B

Abstract

The invention discloses a low-voltage intelligent motor protector which comprises a motor protector and bases, wherein the bases are fixedly connected to the centers of the two sides of the rear end of the motor protector, control assemblies are installed at the front end and the rear end of the motor protector, the outer wall of a sliding rod is connected with a vertical plate in a sliding mode, a sliding groove is machined in one side of the outer end of the vertical plate, one side of the outer wall of the vertical plate is fixedly connected with a rubber pad through an arc-shaped plate, and positioning assemblies are installed on the inner sides of the tail ends of the two sides of an adjusting assembly. This low pressure intelligent motor protector, through the cooperation between shaft shoulder, cover block, riser, arc, rubber pad and the wiring cable, makes a plurality of cover blocks carry out synchronous lateral shifting, and the cover block can drive riser and arc and inwards rotate, and is further, realizes that the arc drives the rubber pad centre gripping at the outer wall of cable, realizes the rigidity of cable jack one side outer wall, has avoided receiving the impact easily behind the cable jack of prior art or has shaken and lead to the fact the not hard up problem of connection.

Description

Low-voltage intelligent motor protector

Technical Field

The invention relates to the technical field of motor protectors, in particular to a low-voltage intelligent motor protector.

Background

The motor protector has the function of comprehensively protecting and controlling the motor, and gives an alarm or protects and controls the aging of a winding when the motor has overcurrent, undercurrent, phase failure, locked rotor, short circuit, overvoltage, undervoltage, electric leakage, three-phase imbalance, overheating, grounding, bearing abrasion, stator and rotor eccentricity, and the motor protection products in the market do not have the unified standard, and have various models and specifications. In order to meet different requirements of users, manufacturers produce a series of products, and a low-voltage intelligent motor protector is one of motor protectors, although the motor protector in the prior art can be used.

But there is the easy problem that leads to the fact to connect not hard up that receives impact or vibrations behind the cable jack in the prior art use, the quick adjustment problem of lock and open mode is not convenient for carry out to the fixed structure of cable protection, and the relatively poor rotation lock that leads to the fixed structure of cable protection back of synchronism leads to the not enough problem of protective capacities and the initial installation problem that the fixed structure of cable protection influences the cable easily with the cable disalignment.

Disclosure of Invention

The invention aims to provide a low-voltage intelligent motor protector, which solves the problem that the cable jack provided by the background technology is easy to be impacted or vibrated to cause loose connection.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a low pressure intelligent motor protector, includes motor protector and base, the equal rigid coupling in motor protector's rear end both sides center has the base, control assembly is installed at motor protector's front and back both ends, both ends all are provided with the adjustment subassembly about motor protector's the rear side, the inside screw rod that is provided with in top of adjustment subassembly, the outer wall equidistance screw thread of screw rod links to each other has a plurality of collets, the upper and lower both ends center rigid coupling of collets has the slide bar, the outer wall slip of slide bar links to each other there is the riser, the outer end one side processing of riser has the spout, the second round pin axle is installed to inner one side of riser, outer wall one side of riser is fixed continuous with the rubber pad through the arc, locating component is installed to the terminal inboard.

Preferably, the adjusting component comprises a buckle plate, a T-shaped plate, an inclined rod, a first pin shaft, a handle, an inclined groove and a round rod;

it is a plurality of both sides around the buckle lies in motor protector's rear portion both ends respectively, from top to bottom the equal rigid coupling in inner both sides of buckle has the down tube, the inside first round pin axle that links to each other with motor protector rotates of the inner of down tube, the inside chute that has all processed in the outside of down tube, the inside slip of chute links to each other has the round bar, controls both ends the equal rigid coupling in the end of round bar has the T template, the equal rigid coupling in the outer wall outside of T template has the handle.

Preferably, screws are arranged on the upper side and the lower side of the interior of the base and are in threaded connection with the base, and a plurality of jack marks are machined at the upper end and the lower end of the rear portion of the motor protector.

Preferably, the control assembly comprises a display screen, a control button, a current knob, a fastening bolt, an upper wiring cable, a lower wiring cable and a delay knob;

the display screen is installed in motor protector's front end center top, and is a plurality of control button installs at motor protector front end downside, current knob and time delay knob rotate respectively and install in motor protector's the front end left and right sides, and is a plurality of go up the upper and lower both sides that the cable is connected respectively at the motor protector rear end with lower wiring cable, go up the front side of wiring cable and lower wiring cable and install fastening bolt, a plurality of fastening bolt all link to each other with the motor protector screw thread.

Preferably, it is a plurality of go up the wiring cable and be corresponding the distribution with fastening bolt's quantity and relative position with lower wiring cable, go up wiring cable and lower wiring cable parallel equidistance distribution both sides about motor protector rear end, and go up wiring cable and lower wiring cable and be mirror symmetry distribution.

Preferably, the positioning assembly comprises a transverse plate, a push rod, a vertical rod, an outer clamping block, an inner clamping block, a first spring, a base plate, a second spring and a sliding block;

it is a plurality of the diaphragm rigid coupling is inboard in the inner of T template, the equal rigid coupling in end of diaphragm has the slider, slider and diaphragm all slide with motor protector and link to each other, the outer wall of slider all links to each other with the backing plate is fixed through the montant, the outer wall of montant all is provided with the second spring, the both ends of second spring are fixed with slider and motor protector respectively and link to each other, the equal rigid coupling in outer wall of cushion has outer fixture block, and is a plurality of the push rod slides respectively and links to each other inside both sides about motor protector's both ends, the end of push rod is provided with first spring, the both ends of first spring are fixed with push rod and motor protector respectively and link to each other, the equal rigid coupling in outer wall outside of push rod has interior fixture block.

Compared with the prior art, the invention has the beneficial effects that: according to the low-voltage intelligent motor protector, through the matching among the shaft shoulder, the sleeve blocks, the vertical plate, the arc-shaped plate, the rubber pad and the wiring cable, a user can insert a screwdriver with cross-shaped patterns at the shaft shoulder to drive the shaft shoulder and the screw rod to rotate, so that the sleeve blocks can synchronously and transversely move, the sleeve blocks can drive the vertical plate and the arc-shaped plate to rotate inwards, further, the arc-shaped plate drives the rubber pad to be clamped on the outer wall of the cable, the position of the outer wall on one side of the cable jack is fixed, and the problem that the cable jack in the prior art is easy to be impacted or vibrated to cause loose connection is solved;

through the T template, the slider, outer fixture block, first spring, the buckle, cooperation between the second spring, the T template can drive slider and outer fixture block and remove, upper and lower outer fixture block inwards removes and can drive interior fixture block and carry out lateral shifting, and the fixture block receives the elasticity of first spring to reset in extreme position, make interior fixture block and outer fixture block form the joint, accomplish the connection back, the user can inwards promote the push rod, the joint of fixture block and outer fixture block in relieving, make T-shaped block and slider reset under the elasticity of second spring, it is the lock state to make the buckle inwards rotate, it is spacing to carry out the cable to be convenient for resume fast, the quick adjustment problem of lock and open mode has been avoided current fixed structure of cable protection not convenient for to carry out.

Through the matching among the T-shaped plate, the round rods, the diagonal rods, the buckling plate and the chute, as the sliding relative positions of the round rods and the diagonal rods at the tail ends of the two sides of the T-shaped plate are symmetrically distributed, the T-shaped plate can be synchronously opened inside and outside or buckled and rotated by driving the buckling plate through the round rods and the diagonal rods, so that the buckling plate can be perfectly buckled on the outer wall of a cable during buckling, and the problem of insufficient protection capability caused by the fact that the rotating buckling of a cable protection and fixing structure is not coaxial with the cable after the rotating buckling due to poor synchronism is avoided;

through the base, the screw, motor protector, the T template, the buckle, the down tube, cooperation between chute and the round bar, press this device in motor department through the base, and screw up the screw in the inside of base and realize the rigidity, then drive T template inside removal from top to bottom through the handle, the end of T template is removed in the inside of chute through a plurality of round bars, can drive down tube and buckle outwards rotate and be the open mode, avoid the fixed structure of cable protection to influence the initial erection problem of cable easily.

Drawings

FIG. 1 is a cross-sectional view of the snap-fit state of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the open state structure of the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

FIG. 5 is a schematic front cross-sectional view of FIG. 1 in accordance with the present invention;

FIG. 6 is a schematic top view of FIG. 1 according to the present invention.

In the figure: 1. the motor protector comprises a motor protector, 2, a control assembly, 201, a display screen, 202, a control button, 203, a current knob, 204, a fastening bolt, 205, an upper wiring cable, 206, a lower wiring cable, 207, a delay knob, 3, an adjusting assembly, 301, a buckle plate, 302, a T-shaped plate, 303, a diagonal rod, 304, a first pin shaft, 305, a handle, 306, a chute, 307, a round rod, 4, a positioning assembly, 401, a transverse plate, 402, a push rod, 403, a vertical rod, 404, an outer clamping block, 405, an inner clamping block, 406, a first spring, 407, a backing plate, 408, a second spring, 409, a sliding block, 5, a sleeve block, 6, a vertical plate, 7, a screw rod, 8, an arc plate, 9, a chute, 10, a sliding rod, 11, a second pin shaft, 12, a shaft shoulder, 13, a base, 14, a screw, 15, a jack mark, 16 and a rubber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a low-voltage intelligent motor protector comprises a motor protector 1 and a base 13, wherein the centers of two sides of the rear end of the motor protector 1 are fixedly connected with the base 13, the base 13 can support the motor protector 1, control components 2 are installed at the front end and the rear end of the motor protector 1, adjusting components 3 are arranged at the upper end and the lower end of the rear side of the motor protector 1, a screw 7 is arranged inside the adjusting components 3, shaft shoulders 12 are fixedly connected at the tail ends of two sides of the screw 7, cross patterns are processed on the outer wall of the tail end of each shaft shoulder 12, a plurality of sleeve blocks 5 are connected with the outer wall of each screw 7 in an equidistant threaded manner, the plurality of sleeve blocks 5 can be driven to transversely move by the rotation of the screw 7, slide rods 10 are fixedly connected with the centers of the upper end and the lower end of each sleeve block 5, vertical plates 6 are connected with the outer wall of each slide rod 10 in a sliding manner, the sleeve blocks 5 can drive the vertical plates 6 to rotate around second pin shafts 11 by the transverse movement of the slide blocks 10, a sliding groove 9 is formed in one side of the outer end of the vertical plate 6, a second pin shaft 11 is mounted on one side of the inner end of the vertical plate 6, one side of the outer wall of the vertical plate 6 is fixedly connected with a rubber pad 16 through an arc-shaped plate 8, and positioning assemblies 4 are mounted on the inner sides of the tail ends of the two sides of the adjusting assembly 3;

through the shaft shoulder 12, the cover block 5, the riser 6, the arc 8, the cooperation between rubber pad 16 and the wiring cable, the user can insert the screwdriver of cross decorative pattern in shaft shoulder 12 department, drive shaft shoulder 12 and screw rod 7 rotate, make a plurality of cover blocks 5 carry out synchronous lateral shifting, cover block 5 can drive

riser

6 and 8 internal rotation of arc, furthermore, it drives the outer wall of rubber pad 16 centre gripping at the cable to realize the arc 8, realize the rigidity of cable jack one side outer wall, receive the impact easily behind the cable jack of prior art or vibrations and cause the problem of connecting not hard up.

The adjusting assembly 3 comprises buckle plates 301, T-shaped plates 302, inclined rods 303, first pin shafts 304, grips 305, inclined grooves 306 and round rods 307, the buckle plates 301 are respectively located on the front and rear sides of the upper and lower ends of the rear portion of the motor protector 1, the inclined rods 303 are fixedly connected to the two sides of the inner ends of the buckle plates 301, the inner ends of the inclined rods 303 are rotatably connected with the motor protector 1 through the first pin shafts 304, the inclined grooves 306 are machined in the outer sides of the inclined rods 303, the round rods 307 are connected to the inner portions of the inclined grooves 306 in a sliding mode, the T-shaped plates 302 are fixedly connected to the tail ends of the round rods 307 at the left and right ends, the grips 305 are fixedly connected to the outer sides of the outer walls of the T-shaped plates 302, screws 14 are arranged on the upper and lower sides of the inner portion of the base 13, the screws 14 are in threaded connection with the base 13, and a plurality of jack marks 15 are machined at the upper and lower ends of the rear portion of the motor protector 1;

through the matching among the T-shaped plate 302, the round rods 307, the diagonal rods 303, the buckle plate 301 and the chute 305, the sliding relative positions of the round rods 307 and the diagonal rods 303 at the tail ends of the two sides of the T-shaped plate 302 are symmetrically distributed, so that the buckle plate 301 is driven by the round rods 307 and the diagonal rods 303 to synchronously open inside and outside or buckle and rotate, the buckle plate 301 can be perfectly buckled on the outer wall of a cable during buckling, and the problem that the cable is not enough in protection capacity due to the fact that the rotation of a cable protection fixing structure is not coaxial with the cable after buckling due to poor synchronism is solved;

through the cooperation between base 13, screw 14, motor protector 1, T type board 302, buckle 301, down tube 303, chute 306 and round bar 307, press this device in motor department through base 13, and screw 14 realizes the rigidity in the inside of base 13, then drive upper and lower T type board 302 inward movement through handle 305, the end of T type board 302 is through the inside removal of a plurality of round bars 307 at chute 306, can drive down tube 303 and buckle 301 outwards to rotate and be the open mode, avoid the fixed structure of cable protection to influence the initial erection problem of cable easily.

The control component 2 comprises a display screen 201, a control button 202, a current knob 203, a fastening bolt 204, an upper wiring cable 205, a lower wiring cable 206 and a time delay knob 207, wherein the display screen 201 is installed above the center of the front end of the motor protector 1, a plurality of control buttons 202 are installed on the lower side of the front end of the motor protector 1, the current knob 203 and the time delay knob 207 are respectively and rotatably installed on the left side and the right side of the front end of the motor protector 1, a plurality of upper wiring cables 205 and lower wiring cables 206 are respectively connected on the upper side and the lower side of the rear end of the motor protector 1, the upper wiring cable 205 and the lower wiring cables 206 are used for being connected with circuits of a motor, the fastening bolts 204 are installed on the front sides of the upper wiring cable 205 and the lower wiring cables 206, the plurality of fastening bolts 204 are all in threaded connection with the motor protector 1, the connection and fixation of the upper wiring cable 205 and the lower wiring cable 206 are carried out by screwing the plurality of fastening bolts 204, the number and relative positions of the plurality of upper connection cables 205 and lower connection cables 206 and the fastening bolts 204 are distributed correspondingly, the upper connection cables 205 and the lower connection cables 206 are distributed in parallel and equidistantly on the upper and lower sides of the rear end of the motor protector 1, and the upper connection cables 205 and the lower connection cables 206 are distributed in mirror symmetry.

The positioning assembly 4 comprises a transverse plate 401, a push rod 402, a vertical rod 403, an outer clamping block 404, an inner clamping block 405, a first spring 406, a backing plate 407, a second spring 408 and a sliding block 409, wherein a plurality of transverse plates 401 are fixedly connected to the inner side of the inner end of the T-shaped plate 302, the T-shaped plate 302 can drive the transverse plates 401 to move, the tail ends of the transverse plates 401 are fixedly connected with sliding blocks 409, the sliding blocks 409 and the transverse plates 401 are slidably connected with the motor protector 1, the sliding blocks 409 and the transverse plates 401 can move inside the motor protector 1, the outer walls of the sliding blocks 409 are fixedly connected with the backing plate 407 through the vertical rods 403, the outer walls of the vertical rods 403 are respectively provided with the second springs 408, the elastic coefficient K of the second springs 408 is 1200N/m, the sliding blocks 409 can press the second springs 408 when moving downwards, the two ends of the second springs 408 are respectively fixedly connected with the sliding blocks 409 and the motor protector 1, the outer walls of the backing plate 407 are respectively fixedly connected with the outer clamping blocks 404, and the outer clamping blocks 404 can drive the inner clamping blocks 405 to move inwards, the push rods 402 are respectively connected inside the upper side and the lower side of the left end and the right end of the motor protector 1 in a sliding manner, the tail ends of the push rods 402 are provided with first springs 406, the elastic coefficient K of the first springs 406 is 500N/m, the two ends of the first springs 406 are respectively fixedly connected with the push rods 402 and the motor protector 1, and the outer sides of the outer walls of the push rods 402 are fixedly connected with inner clamping blocks 405;

through the cooperation between the T-shaped plate 302, the slider 409, the outer fixture block 404, the first spring 406, the buckle plate 301 and the second spring 408, the T-shaped plate 302 can drive the slider 409 and the outer fixture block 404 to move, the upper fixture block 404 and the lower fixture block 404 move inwards to drive the inner fixture block 405 to move transversely, the inner fixture block 405 is reset by the elasticity of the first spring 406 in the limit position, the inner fixture block 406 and the outer fixture block 404 are clamped, after connection is completed, a user can push the push rod 402 inwards to release the clamping of the inner fixture block 406 and the outer fixture block 404, the T-shaped block 302 and the slider 409 are reset under the elasticity of the second spring 408, the buckle plate 301 rotates inwards to form a buckling state, the cable is conveniently and quickly limited by quick recovery, and the problem that the existing cable protection fixing structure is not convenient for quickly adjusting the buckling state and the opening state is solved.

When the low-voltage intelligent motor protector is needed to be used, firstly, a user can press the device on a motor through the base 13, screws 14 are screwed in the base 13 to realize position fixing, then the upper and lower T-shaped plates 302 are driven to move inwards through the handle 305, the tail ends of the T-shaped plates 302 move in the inclined grooves 306 through the round rods 307, the inclined rods 303 and the pinch plates 301 can be driven to rotate outwards to be in an open state, the problem that the initial installation of cables is easily influenced by the structure for protecting and fixing the cables is avoided, meanwhile, the T-shaped plates 302 can drive the sliding blocks 409 and the outer clamping blocks 404 to move, the upper and lower outer clamping blocks 404 move inwards to drive the inner clamping blocks 405 to move transversely, the inner clamping blocks 405 are reset by the elasticity of the first springs 406 at the limit positions, the inner clamping blocks 406 and the outer clamping blocks 404 are clamped, then a plurality of upper wiring cables 205 and lower wiring cables 206 are respectively inserted into the upper and lower two sides of the rear end of the motor protector jack 1 in a corresponding sequence, then the fastening bolts 204 are sequentially screwed, so that the motor protector 1 can be connected with a motor circuit through the upper connecting wire cable 205 and the lower connecting wire cable 206, after the connection is completed, a user can push the push rod 402 inwards to release the clamping between the inner clamping block 406 and the outer clamping block 404, so that the T-shaped block 302 and the sliding block 409 are reset under the elastic force of the second spring 408, the pinch plate 301 rotates inwards to form a buckling state, the quick recovery is convenient for limiting the cable, the problem that the existing cable protection and fixation structure is inconvenient for quick adjustment of the buckling and opening states is solved, then the user can insert a cross-pattern screwdriver at the shaft shoulder 12 to drive the shaft shoulder 12 and the screw 7 to rotate, so that a plurality of sleeve blocks 5 perform synchronous transverse movement, the sleeve blocks 5 can drive the vertical plate 6 and the arc-shaped plate 8 to rotate inwards, further, the arc-shaped plate 8 can drive the rubber pad 16 to be clamped on the outer wall of the cable, realize the rigidity of cable jack one side outer wall, the problem of having avoided receiving impact or vibrations behind the cable jack of prior art easily and causing to connect not hard up, simultaneously because the terminal round bar 307 in T template 302 both sides and the slip relative position of down tube 303 are the symmetric distribution, make T template 302 carry out inside and outside opening or the lock rotation of synchronization through round bar 307 and down tube 303 drive buckle 301, make buckle 301 perfect lock when the lock at the outer wall of cable, avoided the relatively poor rotation lock that leads to the fixed structure of cable protection after the synchronism leads to the not enough problem of protective capacities with the cable disalignment.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a low pressure intelligent motor protector, includes motor protector (1) and base (13), the equal rigid coupling in rear end both sides center of motor protector (1) has base (13), its characterized in that: the front end and the rear end of the motor protector (1) are provided with control components (2), the upper end and the lower end of the rear side of the motor protector (1) are both provided with an adjusting component (3), a screw rod (7) is arranged inside the upper part of the adjusting component (3), shaft shoulders (12) are fixedly connected with the tail ends of the two sides of the screw rod (7), the outer wall of the screw rod (7) is connected with a plurality of sleeve blocks (5) in an equidistant threaded manner, the centers of the upper end and the lower end of each sleeve block (5) are fixedly connected with a slide bar (10), the outer wall of the sliding rod (10) is connected with a vertical plate (6) in a sliding way, one side of the outer end of the vertical plate (6) is provided with a sliding groove (9), a second pin shaft (11) is arranged at one side of the inner end of the vertical plate (6), one side of the outer wall of the vertical plate (6) is fixedly connected with a rubber pad (16) through an arc-shaped plate (8), and positioning components (4) are arranged on the inner sides of the tail ends of the two sides of the adjusting component (3).

2. A low-voltage intelligent motor protector as claimed in claim 1, wherein: the adjusting assembly (3) comprises a pinch plate (301), a T-shaped plate (302), an inclined rod (303), a first pin shaft (304), a handle (305), an inclined groove (306) and a round rod (307);

it is a plurality of both ends front and back both sides about buckle (301) is located the rear portion of motor protector (1) respectively, from top to bottom the equal rigid coupling in inner both sides of buckle (301) has down tube (303), and the terminal inner wall in both sides of buckle (301) all rotates with shaft shoulder (12) and links to each other, the inner inside of down tube (303) rotates with motor protector (1) through first round pin axle (304) and links to each other, inside all processing in the outside of down tube (303) has chute (306), the inside slip of chute (306) links to each other round bar (307), controls both ends the equal rigid coupling in end of round bar (307) has T template (302), the equal rigid coupling in the outer wall outside of T template (302) has handle (305).

3. A low-voltage intelligent motor protector as claimed in claim 1, wherein: both sides all are provided with screw (14) about the inside of base (13), screw (14) and base (13) threaded connection, both ends processing has a plurality of jack marks (15) about the rear portion of motor protector (1).

4. A low-voltage intelligent motor protector as claimed in claim 1, wherein: the control assembly (2) comprises a display screen (201), a control button (202), a current knob (203), a fastening bolt (204), an upper wiring cable (205), a lower wiring cable (206) and a time delay knob (207);

install in the front end center top of motor protector (1), a plurality of display screen (201) control button (202) are installed at motor protector (1) front end downside, current knob (203) and time delay knob (207) rotate respectively and install the front end left and right sides in motor protector (1), and are a plurality of go up wiring cable (205) and lower wiring cable (206) and connect respectively in the upper and lower both sides of motor protector (1) rear end, go up wiring cable (205) and the front side of lower wiring cable (206) and install fastening bolt (204), a plurality of fastening bolt (204) all link to each other with motor protector (1) screw thread.

5. A low-voltage intelligent motor protector as claimed in claim 4, wherein: it is a plurality of go up wiring cable (205) and lower wiring cable (206) and fastening bolt (204) quantity and relative position are corresponding the distribution, go up wiring cable (205) and lower wiring cable (206) and arrange equidistance distribution in both sides about motor protector (1) rear end side by side, and go up wiring cable (205) and lower wiring cable (206) and be the mirror symmetry and distribute.

6. A low-voltage intelligent motor protector as claimed in claim 1, wherein: the positioning assembly (4) comprises a transverse plate (401), a push rod (402), a vertical rod (403), an outer clamping block (404), an inner clamping block (405), a first spring (406), a backing plate (407), a second spring (408) and a sliding block (409);

a plurality of the transverse plates (401) are fixedly connected at the inner end inner side of the T-shaped plate (302), the tail ends of the transverse plates (401) are fixedly connected with sliding blocks (409), the sliding blocks (409) and the transverse plates (401) are connected with the motor protector (1) in a sliding mode, the outer walls of the sliding blocks (409) are fixedly connected with a base plate (407) through vertical rods (403), the outer walls of the vertical rods (403) are provided with second springs (408), two ends of each second spring (408) are fixedly connected with the sliding blocks (409) and the motor protector (1) respectively, the outer walls of the cushion blocks (407) are fixedly connected with outer clamping blocks (404), a plurality of the push rods (402) are connected with the upper side and the lower side of the left end and the right end of the motor protector (1) in a sliding mode respectively, the tail ends of the push rods (402) are provided with first springs (406), two ends of the first springs (406) are fixedly connected with the push rods (402) and the motor protector (1) respectively, the outer side of the outer wall of the push rod (402) is fixedly connected with an inner clamping block (405).