CN113811123B

CN113811123B - Intelligent motor soft starter with long service life

Info

Publication number: CN113811123B
Application number: CN202111101071.7A
Authority: CN
Inventors: 刘国庆; 任景旭
Original assignee: ANHUI TONGHUA NEW ENERGY POWER CO LTD
Current assignee: ANHUI TONGHUA NEW ENERGY POWER CO LTD
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2023-07-07
Anticipated expiration: 2041-09-18
Also published as: CN113811123A

Abstract

The invention discloses an intelligent motor soft starter with long service life, which comprises a soft starter and a control panel, wherein the control panel is arranged on one side of the front part of the soft starter, a heat dissipation assembly is arranged in the lower part of the soft starter, a plurality of upper wiring bolts are arranged in the front end of an upper wiring hole, a plurality of lower wiring bolts are arranged in the front end of a lower wiring hole, and an auxiliary assembly is arranged in the center of the lower end of the heat dissipation assembly. This long service life's intelligent motor soft starter, through the cooperation between flabellum, soft starter, main shaft, pivot, cover piece, go up the diagonal bar and the diagonal bar down, the fan starts, makes the flabellum rotate and realizes dispelling the heat to the internal element of soft starter, consequently through observing the concrete position that the cover piece descends to in the heat dissipation process, can judge the rotation rate of flabellum, avoided the flabellum long-time use because of the dust deposition leads to the problem that unable visual representation when the rotational speed is unable to reach the radiating purpose inadequately.

Description

Intelligent motor soft starter with long service life

Technical Field

The invention relates to the technical field of motor soft starters, in particular to an intelligent motor soft starter with long service life.

Background

The motor Soft Starter is novel starting equipment which is designed and produced by adopting a power electronic technology, a micro-processing technology and a modern control theory and has the international advanced level at present, is a novel motor control device which integrates the functions of Soft start, soft stop, light load energy saving and various protection of a current collector, and is called a Soft Starter abroad, although the motor Soft Starter in the prior art can realize specific use requirements, the problem that the fan blades cannot be visually represented when the rotating speed is insufficient and cannot achieve the heat dissipation purpose due to dust accumulation in the use process of the prior art is solved, the service life is reduced due to the damage of internal elements of the Soft Starter, and meanwhile, the problems that the installation and the disassembly of an auxiliary representation device cannot be carried out according to the use requirement are inconvenient to carry out, and the problem that the fan is inconvenient to disassemble and separate cleaning between the fan and an air tank filter screen are still solved.

Disclosure of Invention

The invention aims to provide an intelligent motor soft starter with long service life, which solves the problem that the fan blade provided in the background art cannot be visually represented when the rotating speed is insufficient due to dust accumulation and cannot achieve the heat dissipation purpose after long-time use.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an intelligent motor soft starter of long service life, includes soft starter and control panel, control panel is installed to the anterior one side of soft starter, the below internally mounted of soft starter has the radiator unit, the four corners of radiator unit passes through the installation component and links to each other with soft starter is fixed, upper and lower both sides of soft starter are processed respectively and are had wiring hole and lower wiring hole, the front end internally mounted in upper wiring hole has a plurality of last wiring bolts, the front end internally mounted in lower wiring hole has a plurality of lower wiring bolts, the lower extreme center of radiator unit installs auxiliary assembly.

Preferably, the heat dissipation assembly comprises a transverse plate, a fan shell, fan blades, a main shaft, a vertical bar and an air groove;

the cross plate is located the inner wall one side below of soft starter, the laminating of the upper end of cross plate has the fan casing, the inner wall drive portion of fan casing rotates with the main shaft and links to each other, the outer wall rigid coupling of main shaft has a plurality of flabellum, the inner wall processing of main shaft has a plurality of vertical bars, the inboard center processing of cross plate has the multichannel air pocket.

Preferably, the air grooves are uniformly distributed in the transverse plate in a central symmetry manner, the structures and the shapes of the air grooves are uniform, and the outer side size of the air grooves is the same as the inner wall size of the fan shell.

Preferably, the auxiliary assembly comprises an upper inclined rod, a lower inclined rod, a rotating shaft, a first spring, a bottom plate, a top plate, a bayonet lock, a sleeve block and a vertical groove;

the top plate is fixedly connected with the center of the lower end of the transverse plate through a plurality of bolts, the inside of the top plate is rotationally connected with the rotating shaft through a bearing, a bottom plate is fixedly connected to one side of the lower end of the rotating shaft, a sleeve block is arranged on one side of the upper side of the outer wall of the rotating shaft in a clearance fit mode, a first spring is arranged below the outer wall of the rotating shaft, the upper side and the lower side of the first spring are fixedly connected with the sleeve block and the bottom plate respectively, a plurality of upper inclined rods are arranged on the outer wall of the sleeve block, a plurality of lower inclined rods are arranged on the outer wall of the bottom plate, the inner side tail ends of the upper inclined rods and the lower inclined rods are rotationally connected through clamping pins, and a plurality of vertical grooves are formed in the outer wall processing of the upper end of the rotating shaft.

Preferably, the number and the relative positions of the vertical grooves and the vertical bars are distributed correspondingly, and the inner side inner walls of the vertical grooves are in clearance fit with the vertical bars.

Preferably, the mounting assembly comprises a vertical rod, a clamping block, a scroll spring, a second spring and a backing plate;

the vertical rods are respectively positioned inside four corners of the fan shell, the vertical rods are in clearance fit with the fan shell and the transverse plate, one side of the outer wall of the lower end of the vertical rod is rotationally connected with a plurality of clamping blocks through pin shafts, the outer wall of the rotating part of each clamping block is provided with a spiral spring, the both sides of scroll spring are fixed with fixture block and montant respectively and link to each other, the upper end of montant is all fixed with the inner wall of soft starter through the backing plate and is linked to each other, the outer wall top of montant is provided with the second spring, the upper end and the backing plate of second spring are fixed and are linked to each other, the lower extreme and the fan casing of second spring closely laminate.

Preferably, mounting holes are formed in four corners of the rear-end mounting plate of the soft starter, and the mounting holes are through holes with long-strip-shaped tail end arc shapes.

Compared with the prior art, the invention has the beneficial effects that: this long service life's intelligent motor soft starter:

through the cooperation between the fan blade, the soft starter, the main shaft, the rotating shaft, the sleeve block, the upper inclined rod and the lower inclined rod, the fan is started, so that the fan blade rotates to realize heat dissipation to the internal elements of the soft starter, meanwhile, the rotating shaft of the main shaft can drive the plurality of upper inclined rods and the lower inclined rods to rotate, the upper inclined rods and the lower inclined rods can rotate inwards along with the change of the centrifugal force due to the centrifugal force in the high-speed rotating process, the sleeve block moves downwards along with the rotating shaft to squeeze the first spring, and the rotating speed of the fan blade can be judged by observing the specific position of the sleeve block which is lowered in the heat dissipation process, so that the problem that the rotation speed cannot be visually represented when the fan blade cannot reach the heat dissipation purpose due to insufficient dust accumulation in long-time use is avoided;

through the cooperation between roof, diaphragm, pivot, main shaft, vertical bar and vertical groove, the user also can pass through the bolt and carry out the installation or dismantle between roof and the diaphragm as required, when dismantling, the pivot can directly follow the inside of main shaft draw out can, when installing, can fix the roof in the lower extreme of diaphragm, and in the installation, adjust pivot angle and make pivot and main shaft constitute and correspond the cooperation between vertical bar and the vertical groove, make installation back pivot and main shaft can rotate in step, the problem of the installation dismantlement of auxiliary representation device can't be carried out according to the use needs has been avoided;

through the cooperation between the clamping block, the transverse plate, the second spring, the fan shell and the transverse plate, when the fan is required to be cleaned, a user can inwards extrude the clamping block to release the cooperation between the clamping block and the transverse plate, so that the second spring which is originally in an extrusion state can downwards eject the fan shell and the transverse plate to clean, after cleaning and drying are finished, the second spring can be upwards pushed at a corresponding position, and the clamping block firstly inwards rotates to outwards eject at a limiting position in the upwards moving process, thereby realizing the installation of the fan shell and the transverse plate, and avoiding the problems of inconvenient rapid installation and disassembly during the fan cleaning in the prior art;

through the cooperation between fan casing, the diaphragm, soft starter, the second spring and the air tank, because do not have the relation of connection between fan casing and the diaphragm and fix through the mode of closely laminating, simultaneously after accomplishing the installation, because fan casing receives the inner wall position restriction of soft starter with the diaphragm, and the fixture block has restricted the extreme position of diaphragm, the upper end of fan casing receives the extrusion of closely laminating of second spring, be convenient for install, and when dismantling because fan casing and diaphragm components of a whole that can function independently combination, be convenient for separate when the slope, be inconvenient for dismantle separately abluent problem between prior art fan and the air tank filter screen has been avoided.

Drawings

FIG. 1 is a schematic view of the appearance structure of the present invention;

FIG. 2 is a schematic diagram of a front view structure of the present invention;

FIG. 3 is a schematic view of the partial cross-sectional structure of FIG. 2;

FIG. 4 is a schematic view of a partial perspective structure of FIG. 1;

FIG. 5 is a schematic view of the explosive structure of FIG. 4;

fig. 6 is a schematic bottom view of the present invention.

In the figure: 1. soft starter 2, auxiliary assembly, 201, upper diagonal, 202, lower diagonal, 203, spindle, 204, first spring, 205, bottom plate, 206, top plate, 207, bayonet lock, 208, socket, 209, vertical slot, 3, mounting assembly, 301, vertical rod, 302, fixture block, 303, spiral spring, 304, second spring, 305, backing plate, 4, heat dissipating assembly, 401, cross plate, 402, fan housing, 403, fan blade, 404, spindle, 405, vertical bar, 406, air slot, 5, lower wiring bolt, 6, control panel, 7, upper wiring hole, 8, upper wiring bolt, 9, mounting hole, 10, lower wiring hole.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-6, the present invention provides a technical solution: the intelligent motor soft starter with long service life comprises a soft starter 1 and a control panel 6, wherein the control panel 6 is installed on one side of the front part of the soft starter 1, a heat dissipation assembly 4 is installed inside the lower part of the soft starter 1, four corners of the heat dissipation assembly 4 are fixedly connected with the soft starter 1 through a mounting assembly 3, an upper wiring hole 7 and a lower wiring hole 10 are respectively formed in the upper side and the lower side of the soft starter 1, a corresponding cable is inserted into the upper wiring hole 7 and then an upper wiring bolt 8 is screwed, connection between the cable and the soft starter 1 is achieved, a plurality of upper wiring bolts 8 are installed inside the front end of the upper wiring hole 7, a plurality of lower wiring bolts 5 are installed inside the front end of the lower wiring hole 10, connection between the cable and the soft starter 1 is achieved through inserting the corresponding cable into the lower wiring hole 10 and then screwing down the lower wiring bolts 5, and an auxiliary assembly 2 is installed in the center of the lower end of the heat dissipation assembly 4;

through the cooperation between flabellum 403, soft starter 1, main shaft 404, pivot 203, cover piece 208, go up the inclined rod 201 and down the inclined rod 202, the fan starts, make flabellum 403 rotate and realize dispelling the heat to the internal component of soft starter 1, the rotation of main shaft 404 accessible pivot 203 drives a plurality of upper inclined rods 201 and down inclined rod 202 and rotates simultaneously, because the centrifugal force in the high-speed rotation process, make upper inclined rod 201 and lower inclined rod 202 follow centrifugal force variation can inwards rotate, make cover piece 208 move down along with it and extrude first spring 204, therefore through observing the concrete position that cover piece 208 descends to in the heat dissipation process, can judge the rotation speed of flabellum 403, avoid flabellum 403 long-time use because of the dust deposition leads to the rotational speed not to reach the problem that the visual representation when radiating the mesh.

The heat dissipation assembly 4 comprises a cross plate 401, a fan shell 402, fan blades 403, a main shaft 404, vertical strips 405 and air grooves 406, wherein the cross plate 401 is positioned below one side of the inner wall of the soft starter 1, the fan shell 402 is attached to the upper end of the cross plate 401, the cross plate 401 is tightly attached to the fan shell 402 to achieve fixation, the inner wall driving part of the fan shell 402 is rotationally connected with the main shaft 404, the main shaft 404 is driven by the driving part to drive the fan blades 403 to rotate when the fan starts to rotate, a plurality of fan blades 403 are fixedly connected to the outer wall of the main shaft 404, a plurality of vertical strips 405 are machined on the inner wall of the main shaft 404, a plurality of air grooves 406 are machined in the center of the inner side of the cross plate 401, the plurality of air grooves 406 are distributed in the inner side of the cross plate 401 in a central symmetry mode, the structure and the shape of the plurality of air grooves 406 are consistent, the air grooves 406 are used for air intake and blocking part of dust, and the outer side of the air grooves 406 are the same as the inner wall of the fan shell 402;

through the cooperation between roof 206, diaphragm 401, pivot 203, main shaft 403, vertical bar 405 and vertical groove 209, the user also can pass through the bolt as required and carry out the installation or dismantle between roof 206 and the diaphragm 401, when dismantling, pivot 203 can directly follow the inside of main shaft 403 take out can, when installing, can fix the lower extreme at the diaphragm 401 with roof 206, and in the installation, adjust pivot 203 angle and make pivot 203 and main shaft 403 constitute and correspond the cooperation between vertical bar 405 and the vertical groove 209, but make installation back pivot 203 and main shaft 403 synchronous rotation, avoided can't carry out the problem of the installation dismantlement of auxiliary representation device according to the use needs.

The auxiliary assembly 2 comprises an upper inclined rod 201, a lower inclined rod 202, a rotating shaft 203, a first spring 204, a bottom plate 205, a top plate 206, a bayonet 207, a sleeve block 208 and a vertical groove 209, wherein the top plate 206 is fixedly connected with the center of the lower end of a transverse plate 401 through a plurality of bolts, the transverse plate 401 is fixedly connected with the top plate 206 through the bolts, the inside of the top plate 206 is rotatably connected with the rotating shaft 203 through a bearing, one side of the lower end of the rotating shaft 203 is fixedly connected with the bottom plate 205, the rotating shaft 203 can drive the bottom plate 205 to rotate, one side above the outer wall of the rotating shaft 203 is in clearance fit with the sleeve block 208, a first spring 204 is arranged below the outer wall of the rotating shaft 203, the elastic coefficient K of the first spring 204 is 600N/m, the upper side and the lower side of the first spring 204 are fixedly connected with the sleeve block 208 respectively, the sleeve block 208 moves downwards to extrude the first spring 204, the outer wall of the sleeve block 208 is provided with a plurality of upper inclined rods 201, the outer wall of the bottom plate 205 is provided with a plurality of lower inclined rods 202, the inner side ends of the upper inclined rods 201 and the lower inclined rods 202 are rotatably connected with the inner side of the clamp block 202 through the corresponding to the inner side of the vertical groove 209 through the bayonet 207, and the inner side of the upper inclined rods 202 and the lower end of the vertical groove 201 are in clearance fit with the vertical groove 209, and the corresponding to the vertical groove 209 are in the vertical groove 209, and the number of the upper end of the vertical groove 209 is matched with the vertical groove 209 in the vertical groove 209, and the vertical groove is matched with the upper end of the vertical groove 209, respectively, and the upper end of the upper inclined rod 201 and the vertical groove is matched with the vertical groove 209, and the vertical groove is in the vertical groove and the vertical groove is in the vertical groove;

through the cooperation between fixture block 302, diaphragm 401, second spring 304, fan casing 402 and diaphragm 401, when the fan washs in need, the user can inwards extrude fixture block 302, release the cooperation of fixture block 302 and diaphragm 401, make originally be extrusion state's second spring 304 can pop up fan casing 402 and diaphragm 401 downwards and wash, after accomplishing washing and drying, can upwards promote in corresponding position, upward move in-process fixture block 302 inwards rotate earlier outwards pops up in extreme position, realize the installation of fan casing 402 and diaphragm 401, the problem of quick installation and dismantlement when having avoided prior art to be inconvenient for carrying out the fan washs.

The installation component 3 comprises a vertical rod 301, a clamping block 302, a scroll spring 303, a second spring 304 and a base plate 305, wherein the plurality of vertical rods 301 are respectively positioned in four corners of a fan shell 402, the vertical rods 301 are in clearance fit with the fan shell 402 and a transverse plate 401, the fan shell 402 and the transverse plate 401 can move on the outer wall of the vertical rod 301, one side of the outer wall of the lower end of the vertical rod 301 is rotationally connected with the plurality of clamping blocks 302 through a pin shaft, the scroll spring 303 is arranged on the outer wall of the rotation position of the clamping block 302, the elastic coefficient K of the scroll spring 303 is 800N/m, the scroll spring 303 can be extruded in the inward rotation process of the clamping block 302, two sides of the scroll spring 303 are fixedly connected with the clamping block 302 and the vertical rod 301 respectively, the upper ends of the vertical rod 301 are fixedly connected with the inner wall of the soft starter 1 through the base plate 305, the second spring 304 is arranged above the outer wall of the vertical rod 301, the elastic coefficient of the second spring 304 is 1200N/m, the upper end of the second spring 304 is fixedly connected with the base plate 305, the lower end of the second spring 304 is tightly attached to the fan shell 402, the four corners of the installation plate 1 are internally provided with installation holes 9, namely, the installation holes 9 are screwed into the installation holes are in the shape of the installation holes of the soft starter 1, and the installation assembly holes are in the shape of the arc through the installation holes;

through the cooperation between fan casing 402, diaphragm 401, soft starter 1, second spring 304 and air bath 406, owing to do not have the relation of connection between fan casing 402 and the diaphragm 401 and fix through closely laminating's mode, simultaneously after accomplishing the installation, owing to fan casing 402 receives the inner wall position restriction of soft starter 1 with diaphragm 401, and fixture block 302 has restricted the extreme position of diaphragm 401, the upper end of fan casing 402 receives the extrusion of closely laminating of second spring 304, be convenient for install, and when dismantling because fan casing 402 and diaphragm 401 components of a whole that can function independently combination, be convenient for separate when the slope, be inconvenient for dismantle separately abluent problem between prior art fan and the air bath filter screen has been avoided.

When the intelligent motor soft starter with long service life is needed to be used, firstly, a user can install the device at the corresponding position of a motor through the soft starter 1 by screwing a screw at the mounting hole 9, then, through inserting a corresponding cable at the upper wiring hole 7 and screwing the upper wiring bolt 8, the connection between an external power supply and the soft starter 1 is realized, the installation mode of the lower wiring hole 10 is consistent, the connection between the soft starter 1 and a motor stator is realized, after the connection is completed, the soft starter 1 can be started, the motor is started, in the use process, a fan can be started along with the connection, the driving part of the fan shell 402 can drive the main shaft 404 to rotate, the fan blade 403 can rotate to realize heat dissipation of the internal elements of the soft starter 1, the rotation of the main shaft 404 can drive the plurality of upper inclined rods 201 and the lower inclined rods 202 to rotate through the rotating shaft 203, because the upper inclined rod 201 and the lower inclined rod 202 can rotate inwards along with the change of centrifugal force in the high-speed rotation process, the sleeve block 208 moves downwards along with the change of centrifugal force to squeeze the first spring 204, the rotation speed of the fan blades 403 can be judged by observing the specific position of the sleeve block 208 which is lowered in the heat dissipation process, the problem that the fan blades 403 cannot be visually represented when the rotation speed is insufficient due to dust accumulation and cannot achieve the heat dissipation purpose in long-time use is avoided, the service life is easily reduced due to damage of internal elements of the soft starter, meanwhile, a user can also install or detach the top plate 206 and the transverse plate 401 through bolts according to the requirement, the rotating shaft 203 can be directly pulled out from the interior of the main shaft 403 in the detachment process, the top plate 206 can be fixed at the lower end of the transverse plate 401 in the installation process, the angle of the rotating shaft 203 is adjusted to enable the rotating shaft 203 and the main shaft 403 to form a vertical bar 405 to be matched with the vertical groove 209, so that the rotating shaft 203 and the main shaft 403 can synchronously rotate after installation, the problem that an auxiliary representation device cannot be installed and disassembled according to the use requirement is avoided, a user can press a clamping block 302 inwards when the fan is required to be cleaned, the matching of the clamping block 302 and a transverse plate 401 is released, a second spring 304 which is originally in a pressed state can downwards pop up the fan housing 402 and the transverse plate 401 to be cleaned, after cleaning and drying are completed, the clamping block 302 can be pushed upwards at a corresponding position, the clamping block 302 firstly inwards rotates outwards at a limiting position in the upwards moving process, the problem that the fan housing 402 and the transverse plate 401 cannot be installed and disassembled conveniently during fan cleaning is avoided, and the problem that the fan housing 402 and the transverse plate 401 cannot be assembled and disassembled conveniently in the prior art is avoided.

In the description of the present invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 an intelligent motor soft starter of long service life, includes soft starter (1) and control panel (6), its characterized in that are installed to anterior one side of soft starter (1): the soft starter comprises a soft starter (1), wherein a heat dissipation assembly (4) is internally installed below the soft starter (1), four corners of the heat dissipation assembly (4) are fixedly connected with the soft starter (1) through an installation assembly (3), an upper wiring hole (7) and a lower wiring hole (10) are respectively formed in the upper side and the lower side of the soft starter (1), a plurality of upper wiring bolts (8) are internally installed at the front end of the upper wiring hole (7), a plurality of lower wiring bolts (5) are internally installed at the front end of the lower wiring hole (10), and an auxiliary assembly (2) is installed at the center of the lower end of the heat dissipation assembly (4);

the heat dissipation assembly (4) comprises a transverse plate (401), a fan shell (402), fan blades (403), a main shaft (404), a vertical bar (405) and an air groove (406);

the novel air conditioner is characterized in that the transverse plate (401) is positioned below one side of the inner wall of the soft starter (1), a fan shell (402) is attached to the upper end of the transverse plate (401), the inner wall driving part of the fan shell (402) is rotationally connected with a main shaft (404), a plurality of fan blades (403) are fixedly connected to the outer wall of the main shaft (404), a plurality of vertical strips (405) are machined on the inner wall of the main shaft (404), a plurality of air grooves (406) are machined in the center of the inner side of the transverse plate (401), the plurality of air grooves (406) are uniformly distributed in the transverse plate (401) in a central symmetry mode, the structures and the shapes of the plurality of air grooves (406) are uniform, and the outer side size of each air groove (406) is identical to the inner wall size of the fan shell (402);

the auxiliary assembly (2) comprises an upper inclined rod (201), a lower inclined rod (202), a rotating shaft (203), a first spring (204), a bottom plate (205), a top plate (206), a bayonet lock (207), a sleeve block (208) and a vertical groove (209);

the utility model discloses a top plate (206) is fixed continuous through the lower extreme center of a plurality of bolts with diaphragm (401), the inside of top plate (206) is rotated through bearing and is linked to each other with pivot (203), the lower extreme one side rigid coupling of pivot (203) has bottom plate (205), the outer wall top one side clearance fit of pivot (203) has cover piece (208), the outer wall below of pivot (203) is provided with first spring (204), the upper and lower both sides of first spring (204) are fixed with cover piece (208) and bottom plate (205) respectively and are linked to each other, the outer wall of cover piece (208) is provided with a plurality of upper diagonal (201), the outer wall of bottom plate (205) is provided with a plurality of lower diagonal (202), a plurality of the inboard end of upper diagonal (201) and lower diagonal (202) is all rotated through bayonet lock (207) and is linked to each other, the outside end of upper diagonal (201) and lower diagonal (202) all rotates with cover piece (208) and bottom plate (205) respectively through bayonet lock (207), the upper end of pivot (203) has a plurality of vertical slots.

2. An intelligent motor soft starter of long service life as defined in claim 1, wherein: the number and the relative positions of the vertical grooves (209) and the vertical strips (405) are distributed correspondingly, and the inner side inner wall of the vertical groove (209) is in clearance fit with the vertical strips (405).

3. An intelligent motor soft starter of long service life as defined in claim 1, wherein: the mounting assembly (3) comprises a vertical rod (301), a clamping block (302), a scroll spring (303), a second spring (304) and a base plate (305);

a plurality of montants (301) are located the four corners inside of fan casing (402) respectively, and equal clearance fit between montant (301) and fan casing (402) and diaphragm (401), lower extreme outer wall one side of montant (301) is rotated through round pin axle and is linked to each other with a plurality of fixture blocks (302), the rotation department outer wall of fixture block (302) is provided with scroll spring (303), the both sides of scroll spring (303) are fixed with fixture block (302) and montant (301) respectively, the upper end of montant (301) is fixed through backing plate (305) and the inner wall of soft starter (1) and is linked to each other, the outer wall top of montant (301) is provided with second spring (304), the upper end and the backing plate (305) of second spring (304) are fixed to be linked to each other, the lower extreme and the fan casing (402) of second spring (304) are closely laminated.

4. An intelligent motor soft starter of long service life as defined in claim 1, wherein: mounting holes (9) are formed in four corners of a rear end mounting plate of the soft starter (1), and the mounting holes (9) are through holes with long-strip-shaped tail end arc shapes.